Fixing device on rescue boat
By using a servo motor to drive a worm gear system and linkage structure, the problem of traditional rescue boat fixing devices being inconvenient to rotate and retrieve lifebuoys has been solved, enabling quick retrieval and secure placement of lifebuoys, significantly improving convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-17
AI Technical Summary
The fixed devices on traditional rescue boats are not convenient for rotating and retrieving lifebuoys in sequence, which affects the ease of quick retrieval and placement of lifebuoys.
A servo motor drives a worm gear system to rotate the frame. The grippers on the frame allow for easy rotation and retrieval of the lifebuoy. A linkage structure between a spring and a moving rod enables the lifebuoy to be quickly fixed and placed.
It enables convenient rotation for sequential retrieval of lifebuoys and quick, secure placement, improving the ease of taking and putting away lifebuoys.
Smart Images

Figure CN223999745U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixing device technology, specifically a fixing device for a rescue boat. Background Technology
[0002] A rescue boat is a motorized small boat used to rescue people in distress and to assemble lifeboats and rafts. They are usually maneuverable to ensure safe and quick rescue of people in distress and assembly of lifeboats at sea. The life rings on traditional rescue boats are mostly placed with hooks and straps, which may fall off during rapid movement. In order to better secure the life rings, a fixing device for rescue boats is proposed.
[0003] As disclosed in the authorization announcement number CN221738056U, a fixing device on a rescue boat includes a hull and a lifebuoy. The lifebuoy is movably connected to the hull. The hull is provided with a fixing mechanism, which includes a limiting plate, a telescopic rod, a spring, and an arc plate. The limiting plate is fixed to the hull in a U-shape. The lifebuoy is placed on the limiting plate. The telescopic rod is fixed to the limiting plate and the arc plate. The spring is sleeved on the telescopic rod, and the two ends of the spring abut against the arc plate and the limiting plate, respectively. The lifebuoy is placed between the arc plate and the limiting plate. A groove is opened on the hull, and the arc plate extends into the groove.
[0004] While it achieves the effect of using the elasticity of a spring to move an arc-shaped plate into a groove, which in turn causes the arc-shaped plate to extend the telescopic rod, thus bringing the lifebuoy closer to the hull until the arc-shaped plate extends into the groove and fixes the lifebuoy to the limiting plate, thereby securing the lifebuoy and preventing it from falling off the hull, it does not solve the problem that existing fixing devices are not conducive to convenient rotation and sequential retrieval of lifebuoys during use, hindering the quick retrieval and placement of lifebuoys and affecting the convenience of lifebuoy retrieval and placement. Utility Model Content
[0005] The purpose of this utility model is to provide a fixing device for rescue boats to solve the problem mentioned in the background art that the fixing device is not convenient for rotating and picking up life rings in sequence, which is not conducive to the quick picking and placing of life rings and affects the convenience of picking up and placing life rings.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for a rescue boat, comprising an adjusting seat and a worm gear. The worm gear is movably installed inside the adjusting seat. A servo motor is installed on the outer wall of the adjusting seat, and the output end of the servo motor is connected to the worm gear. A rotating shaft is movably installed inside the adjusting seat on one side of the worm gear, and the rotating shaft extends to the outside of the adjusting seat. A worm wheel is fitted on the surface of the rotating shaft, and the worm gear and the worm wheel mesh with each other. A rotating frame is installed at the end of the rotating shaft away from the adjusting seat, and the rotating frame is fixedly connected to the rotating shaft. Three sets of bearing seats with equal spacing are installed on the side wall of the rotating frame, and the bearing seats are fixedly connected to the rotating frame.
[0007] Preferably, each of the side walls of the bearing seat is equipped with a support frame, and each support frame is provided with a movable rod at its center, and the movable rod extends into the interior of the bearing seat and is slidably connected to the support frame and the bearing seat.
[0008] Preferably, the surface of the movable rod is fitted with a spring, and the two ends of the spring are respectively connected to the movable rod and the support seat.
[0009] Preferably, each of the moving rods has three sets of linkage arms at equal intervals on its side wall. Each linkage arm has a linkage shaft at the end closest to the moving rod, and the linkage arm is movably connected to the moving rod through the linkage shaft.
[0010] Preferably, each of the linkage arms is provided with a gripper at the end away from the moving rod, and a pin is installed on the side wall of each gripper, and the linkage arm is movably connected to the gripper through the pin.
[0011] Preferably, three sets of connecting frames are installed at equal intervals on the side walls of the support frame, and the connecting frames are fixedly connected to the support frame.
[0012] Preferably, each of the grippers is provided with a hinge shaft at one end near the connecting frame, and the grippers are movably connected to the connecting frame through the hinge shaft.
[0013] Preferably, a life ring is provided on the outside of the gripper, and the pressing frame provides limiting support for the life ring from the side.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the fixing device not only realizes the convenient rotation and sequential picking up of life rings, making it convenient to quickly pick up and place life rings, but also improves the convenience of picking up and placing life rings.
[0015] (1) Install the adjustment seat on the lifeboat. When the life ring is needed, the servo motor drives the worm gear to rotate, the worm gear drives the worm wheel to rotate, the worm wheel drives the rotating frame to rotate through the rotating shaft, and the rotating frame drives multiple sets of grippers and life rings to rotate, so that the life rings are rotated to the pick-up position in sequence. Then press the press frame, the press frame drives the moving rod to move, the moving rod drives the linkage arm to rotate through the linkage shaft, and the linkage arm drives the grippers to rotate around the hinge shaft through the pin shaft. The connecting frame provides support for the hinge shaft so that the three sets of grippers rotate inward synchronously, so that the grippers move away from the life rings. Then the life rings can be removed. This realizes the convenient rotation to pick up the life rings in sequence, which makes it convenient to quickly pick up the life rings.
[0016] (2) When placing the life ring, the pressing frame is pressed, and the pressing frame drives the gripper to rotate inward synchronously as described above. At the same time, the moving rod slides inside the support frame and the bearing seat. The moving rod squeezes the spring, and then the life ring is put on the surface of the gripper. The pressing frame limits and supports the life ring from the side. Then the pressing frame is released. Under the elastic support of the spring, the spring drives the moving rod to return to its original position. The moving rod drives the gripper to rotate through the linkage arm, so that the gripper rotates outward. The gripper clamps and fixes the life ring from the inside of the life ring, thus completing the fixed placement of the life ring and improving the convenience of fixed placement of the life ring. Attached Figure Description
[0017] Figure 1 is a three-dimensional structural diagram of this utility model;
[0018] Figure 2 is a side cross-sectional view of the adjustment seat of this utility model;
[0019] Figure 3 is a side sectional view of the bearing seat of this utility model.
[0020] Figure 4 is a three-dimensional perspective view of the support structure of this utility model;
[0021] Figure 5 is a three-dimensional structural diagram of the gripper of this utility model.
[0022] In the diagram: 1. Adjustment seat; 2. Rotating frame; 3. Bearing seat; 4. Life ring; 5. Gripper; 6. Servo motor; 7. Worm gear; 8. Worm wheel; 9. Rotating shaft; 10. Moving rod; 11. Spring; 12. Support frame; 13. Pressing frame; 14. Linkage arm; 15. Linkage shaft; 16. Hinge shaft; 17. Pin; 18. Connecting frame. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0024] Please see Figure 1-5 An embodiment of this utility model provides a fixing device for a rescue boat, including an adjusting seat 1 and a worm gear 7. The worm gear 7 is movably installed inside the adjusting seat 1. A servo motor 6 is installed on the outer wall of the adjusting seat 1, and the output end of the servo motor 6 is connected to the worm gear 7. A rotating shaft 9 is movably installed inside the adjusting seat 1 on one side of the worm gear 7, and the rotating shaft 9 extends to the outside of the adjusting seat 1. A worm wheel 8 is fitted on the surface of the rotating shaft 9, and the worm gear 7 and the worm wheel 8 mesh with each other. A rotating frame 2 is installed at the end of the rotating shaft 9 away from the adjusting seat 1, and the rotating frame 2 is fixedly connected to the rotating shaft 9. Three sets of bearing seats 3 with equal spacing are installed on the side wall of the rotating frame 2, and the bearing seats 3 are fixedly connected to the rotating frame 2.
[0025] First, install the adjustment seat 1 on the lifeboat. When the life ring is needed, turn on the servo motor 6. The servo motor 6 acts as a power drive, driving the worm gear 7 to rotate. Under the mutual meshing of the worm gear 7 and the worm wheel 8, the worm gear 7 drives the worm wheel 8 to rotate. The worm wheel 8 drives the rotating frame 2 to rotate through the rotating shaft 9. The rotating frame 2 drives multiple sets of grippers 5 and life rings 4 to rotate, so that the life rings 4 are rotated to the pick-up position in sequence. Then, press the pressing frame 13, which drives the moving rod 10 to move. The moving rod 10 drives the linkage arm 14 to rotate through the linkage shaft 15. The linkage arm 14 drives the grippers 5 to rotate around the hinge shaft 16 through the pin shaft 17. The connecting frame 18 provides support for the hinge shaft 16, so that the three sets of grippers 5 rotate inward synchronously, so that the grippers 5 move away from the life rings 4. Then, the life rings 4 can be removed. This realizes the convenient rotation and sequential pick-up of life rings, making it convenient to quickly pick up life rings.
[0026] Support frames 12 are installed on the side walls of the bearing seat 3. A movable rod 10 is provided at the center of each support frame 12, and the movable rod 10 extends into the interior of the bearing seat 3 and is slidably connected to the support frame 12 and the bearing seat 3.
[0027] Springs 11 are fitted on the surface of the moving rod 10, and the two ends of the springs 11 are connected to the moving rod 10 and the bearing seat 3 respectively. Three sets of linkage arms 14 with equal spacing are provided on the side wall of the moving rod 10. A linkage shaft 15 is provided at the end of the linkage arm 14 near the moving rod 10, and the linkage arm 14 is movably connected to the moving rod 10 through the linkage shaft 15.
[0028] Each end of the linkage arm 14 away from the moving rod 10 is provided with a gripper 5. Each gripper 5 is equipped with a pin 17 on its side wall. The linkage arm 14 is movably connected to the gripper 5 through the pin 17. Each side wall of the support frame 12 is equipped with three sets of connecting frames 18 at equal intervals. The connecting frames 18 are fixedly connected to the support frame 12.
[0029] Each of the grippers 5 is provided with a hinge shaft 16 at one end near the connecting frame 18, and the grippers 5 are movably connected to the connecting frame 18 through the hinge shaft 16. A life ring 4 is provided on the outside of the grippers 5, and the pressing frame 13 provides limiting support for the life ring 4 from the side of the life ring 4.
[0030] When placing and securing the lifebuoy, press the pressing frame 13. The pressing frame 13 drives the gripper 5 to rotate inward synchronously, while simultaneously driving the moving rod 10 to slide inside the support frame 12 and the bearing seat 3. The moving rod 10 compresses the spring 11, and then the lifebuoy 4 is placed on the surface of the gripper 5. The pressing frame 13 provides lateral support for the lifebuoy 4. After releasing the pressing frame 13, under the elastic support of the spring 11, the spring 11 drives the moving rod 10 to return to its original position. The moving rod 10 then drives the gripper 5 to rotate through the linkage arm 14, causing the gripper 5 to rotate outward. The gripper 5 clamps and secures the lifebuoy 4 from the inside, thus completing the fixed placement of the lifebuoy 4 and improving the convenience of fixing and placing the lifebuoy.
[0031] Working principle: First, the adjusting seat 1 is installed on the lifeboat. When the life ring is needed, the servo motor 6 is turned on, which drives the worm gear 7 to rotate. Under the mutual meshing of the worm gear 7 and the worm wheel 8, the worm gear 7 drives the worm wheel 8 to rotate, and the worm wheel 8 drives the rotating frame 2 to rotate through the rotating shaft 9. The rotating frame 2 drives multiple sets of grippers 5 and lifebuoys 4 to rotate, sequentially rotating lifebuoys 4 to the retrieval position. Then, pressing the pressing frame 13 moves the moving rod 10, which in turn drives the linkage arm 14 via the linkage shaft 15. The linkage arm 14, via the pin 17, drives the grippers 5 to rotate around the hinge shaft 16. The connecting frame 18 provides support for the hinge shaft 16, allowing the three sets of grippers 5 to rotate inward synchronously, moving them away from the lifebuoys 4. The lifebuoys 4 can then be removed. Similarly, when placing and securing the lifebuoy, pressing the pressing frame 13 causes the grippers 5 to rotate inward synchronously. Simultaneously, the moving rod 10 slides inside the support frame 12 and the bearing seat 3, and the moving rod 10 compresses the spring 11. Then, the life ring 4 is placed on the surface of the gripper 5, and the pressing frame 13 provides side-limiting support for the life ring 4. After releasing the pressing frame 13, under the elastic support of the spring 11, the spring 11 drives the moving rod 10 to reset. Thus, the moving rod 10 drives the gripper 5 to rotate through the linkage arm 14, causing the gripper 5 to rotate outward. The gripper 5 clamps and fixes the life ring 4 from the inside, thus completing the fixed placement of the life ring 4. The above is the complete usage of the fixing device on the rescue boat.
Claims
1. A fixing device on a rescue boat, comprising an adjusting seat (1) and a worm (7), characterized in that: The inside of the adjusting seat (1) movably installs a worm (7), the outer wall of the adjusting seat (1) is provided with a servo motor (6), and the output end of the servo motor (6) is connected with the worm (7), the inside of the adjusting seat (1) on one side of the worm (7) movably installs a rotating shaft (9), and the rotating shaft (9) extends to the outside of the adjusting seat (1), the surface of the rotating shaft (9) is sleeved with a worm wheel (8), and the worm (7) and the worm wheel (8) are engaged with each other, one end of the rotating shaft (9) away from the adjusting seat (1) is provided with a rotating frame (2), and the rotating frame (2) is fixedly connected with the rotating shaft (9), the side wall of the rotating frame (2) is provided with three groups of bearing seats (3) at equal intervals, and the bearing seats (3) are fixedly connected with the rotating frame (2).
2. A securing arrangement on a rescue boat according to claim 1, characterized in that: The side wall of the bearing seat (3) is provided with a supporting frame (12), and the center position of the supporting frame (12) is provided with a moving rod (10), and the moving rod (10) extends to the inside of the bearing seat (3) and is slidably connected with the supporting frame (12) and the bearing seat (3).
3. A securing arrangement on a rescue boat according to claim 2, characterized in that: The surface of the moving rod (10) is sleeved with a spring (11), and the two ends of the spring (11) are connected with the moving rod (10) and the bearing seat (3) respectively.
4. A securing arrangement on a rescue boat according to claim 2, characterized in that: The side wall of the moving rod (10) is provided with three groups of linkage arms (14) at equal intervals, one end of the linkage arm (14) close to the moving rod (10) is provided with a linkage shaft (15), and the linkage arm (14) is movably connected with the moving rod (10) through the linkage shaft (15).
5. A securing arrangement on a rescue boat according to claim 4, characterized in that: One end of the linkage arm (14) away from the moving rod (10) is provided with a clamping jaw (5), the side wall of the clamping jaw (5) is provided with a pin shaft (17), and the linkage arm (14) is movably connected with the clamping jaw (5) through the pin shaft (17).
6. A securing arrangement on a rescue boat according to claim 2, characterized in that: The side wall of the supporting frame (12) is provided with three groups of connecting frames (18) at equal intervals, and the connecting frames (18) are fixedly connected with the supporting frame (12).
7. A securing arrangement on a rescue boat according to claim 5, characterized in that: One end of the clamping jaw (5) close to the connecting frame (18) is provided with a hinged shaft (16), and the clamping jaw (5) is movably connected with the connecting frame (18) through the hinged shaft (16).
8. A securing arrangement on a rescue boat according to claim 5, characterized in that: The outside of the clamping jaw (5) is provided with a life buoy (4), and the pressing frame (13) provides limiting support for the life buoy (4) from the side of the life buoy (4).
Citation Information
Patent Citations
Fixing device on rescue boat
CN221738056U