Lifeboat convenient to fix
By incorporating locking components and snap-fit structures on the lifeboats, and utilizing oil bladders and cylinders for cushioning, the problem of unstable lifeboat assembly structures was solved. This enabled the stable connection and fixation of multiple lifeboats, reducing collisions and swaying, and improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-10
AI Technical Summary
The existing lifeboat assembly structure has movable space, which makes the positions of the lifeboats unstable, easily damaged, and prone to unnecessary swaying or collisions.
It employs locking components and snap-fit housing structure, provides cushioning through oil bladders and cylinders, and utilizes a combination design of plug-in pins and sleeves, combined with snap-fit holes and positioning rods to achieve stable connection and fixation of multiple lifeboats.
It improves the connection and fixation between lifeboats, reduces collisions and swaying, and ensures the stability and safety of lifeboats in severe weather conditions.
Smart Images

Figure CN223982648U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifeboats, and in particular to a lifeboat that is easy to secure. Background Technology
[0002] A lifeboat is a small, specialized lifeboat installed on a ship for rescuing crew members in the event of a shipwreck. It is propelled by oars, sails, or motors. Lifeboats are typically equipped with air tanks to ensure sufficient buoyancy even after water enters the vessel, guaranteeing the safety of the lifeboat and its crew. Lifeboats on ocean-going vessels also carry a certain amount of fresh water, food, and other supplies.
[0003] A search revealed the Chinese patent "A Splicable Aluminum Alloy Rescue Boat" (authorization announcement number CN222728224U). This utility model relates to the technical field of rescue boats, specifically a splicable aluminum alloy rescue boat. It facilitates rapid splicing of the rescue boat and auxiliary hull, improving the efficiency of rescue transport and rescue, enhancing the stability of the device during operation, and increasing practicality. A splicing mechanism is provided between the rescue boat and the auxiliary hull. The splicing mechanism includes a connecting rod, which is fixedly installed at one end of the auxiliary hull. A protective plate is fixedly installed at one end of the rescue boat via two brackets. A bottom plate is fixedly installed at the other end of the protective plate. A fixed ball is fixedly installed at the top of the bottom plate via a fixed post. A fixed ring is fixedly installed on the outer wall of the connecting rod, fitting snugly against the bottom area of the fixed ball and the outer wall of the fixed post. The bottom end of a pressure plate is tightly fitted against the top area of the fixed ball, and a rotating plate is fixedly installed at the top of the pressure plate.
[0004] Although the aforementioned lifeboats can be connected and fixed together using a splicing structure, there is a certain amount of space between the splicing structures. Therefore, when multiple lifeboats are sailing together, the different degrees of tilt between the lifeboats can easily cause the splicing structure to twist and be damaged. At the same time, the aforementioned space may also cause the relative positions between the lifeboats to be unstable, resulting in unnecessary swaying or collisions.
[0005] Therefore, a lifeboat that is easy to fix is proposed to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a lifeboat that is easy to fix in order to solve the above-mentioned problems. It improves the problem that the above-mentioned method of fixing multiple lifeboats together by using a splicing structure is prone to instability in the relative position between lifeboats due to the movable space of the splicing structure, and is prone to damage to the splicing structure, thus affecting the fixing effect.
[0007] The present invention achieves the above objectives through the following technical solution: a lifeboat that is easy to fix, comprising: a connecting plate disposed at the rear of the lifeboat and a sleeve disposed inside therein, wherein one side of the sleeve is provided with a plug-in post that matches its cavity;
[0008] A locking component, wherein the locking component is disposed in the sleeve and is capable of keeping the insertion post stable;
[0009] The locking component includes an oil bladder disposed inside the sleeve. The oil bladder has an annular design, and its inner diameter is close to that of the insertion post.
[0010] Preferably, the locking assembly further includes a hydraulic cylinder disposed inside the sleeve. The air outlet of the hydraulic cylinder is connected to the oil bladder via an oil pipe. A piston rod is horizontally slidably connected inside the hydraulic cylinder. A receiving plate is disposed at one end of the piston rod near the insertion post. Through the hydraulic cylinder, piston rod, and receiving plate, when the insertion post is inserted into the sleeve, the flowing medium in the hydraulic cylinder is squeezed into the oil bladder, causing the oil bladder to inflate and wrap around and limit the insertion post, thereby improving the fixing effect of the insertion post.
[0011] Preferably, the receiving plate has a semi-circular hollow design, and the receiving plate is adapted to the end of the plug-in post.
[0012] Preferably, a spring is fixedly connected to the rear end of the piston rod, and the other end of the spring is fixedly connected to the inner wall of the cylinder. By setting the spring, the piston rod can be reset after the insertion post is removed from the sleeve. At the same time, the flowing medium in the oil bladder can be extracted to release the limit on the insertion post, and it can also prepare for the next locking operation.
[0013] Preferably, the surface of the oil bladder is provided with an annular shell, and the surface of the annular shell is fixedly connected to the inner wall of the sleeve. By providing the annular shell, the expansion path of the oil bladder can be guided when the oil bladder expands.
[0014] Preferably, the surface of the sleeve is movably connected to a snap-fit shell via a rotating shaft. The surface of the snap-fit shell has a snap-fit hole, and the inner wall of the snap-fit hole fits against the surface of the insertion post. By setting the snap-fit shell, the insertion post can be locked a second time, improving the connection and fixation effect between the insertion post and the sleeve.
[0015] Preferably, the connecting plate has an insertion hole on its inner lower part, and a positioning rod is inserted into the insertion hole. The positioning rod is inserted into the surface of the snap-fit shell. By setting the positioning rod, the snap-fit shell can be locked to prevent the snap-fit shell from loosening and losing its limiting effect on the insertion post.
[0016] The beneficial effects of this utility model are:
[0017] By setting the locking components of the cylinder, piston rod and oil bladder, the plug can be wrapped and limited after the plug is inserted into the sleeve. At the same time, during the lifeboat's navigation, the flowing medium in the cylinder can also provide a buffer between lifeboats to prevent them from colliding with each other, and at the same time ensure the connection and fixation between lifeboats.
[0018] By setting up a snap-fit housing and a positioning rod, the snap-fit housing can be closed and snapped into the snap-fit post after the snap-fit post is inserted into the sleeve, which can promote the stability of the snap-fit post and also ensure the fixing effect between multiple lifeboats. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the internal structure of the sleeve of this utility model;
[0022] Figure 4 For the present utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.
[0023] In the diagram: 1. Connecting plate; 2. Sleeve; 3. Snap-fit shell; 4. Insertion post; 5. Positioning rod; 6. Locking assembly; 601. Annular shell; 602. Oil bladder; 603. Spring; 604. Oil cylinder; 605. Piston rod. 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] In practical implementation: such as Figure 1-4 As shown, a lifeboat that is easy to fix includes: a connecting plate 1 disposed at the rear of the lifeboat and a sleeve 2 disposed inside therein, and a plug-in post 4 that matches its cavity is disposed on one side of the sleeve 2.
[0026] When a ship encounters a severe disaster and is unable to navigate normally, or in severe weather conditions, especially strong winds, large waves, and ocean storms, a single lifeboat may capsize, tilt, or be separated by waves when facing extreme environments. Therefore, a connecting structure is installed at the bow and stern of the lifeboat to connect and secure multiple lifeboats together. This is mainly to ensure the safety of the crew, prevent a single lifeboat from losing stability due to waves or wind, and reduce the risk of crew members being unable to receive rescue due to drifting too far or becoming isolated.
[0027] First, the personnel fix the connecting plate 1 to the stern of the lifeboat using screws and other connecting structures. Then, they fix the plug 4 to the front of the rear lifeboat. At this time, the rear lifeboat is moved forward so that the plug 4 is inserted into the sleeve 2 to form a bow-to-stern connection between the two lifeboats.
[0028] Locking component 6 is disposed in sleeve 2 and can keep the plug post 4 stable;
[0029] like Figure 2 , Figure 3 and Figure 4 As shown, the locking assembly 6 includes an oil bladder 602 disposed inside the sleeve 2. The oil bladder 602 has an annular design, and its inner diameter is close to that of the insertion post 4. The locking assembly 6 also includes an oil cylinder 604 disposed inside the sleeve 2. The air outlet of the oil cylinder 604 is connected to the oil bladder 602 through an oil pipe. A piston rod 605 is horizontally slidably connected inside the oil cylinder 604. A receiving plate is provided at one end of the piston rod 605 near the insertion post 4. The receiving plate has a semi-circular hollow design and is adapted to the end of the insertion post 4. A spring 603 is fixedly connected to the rear end of the piston rod 605, and the other end of the spring 603 is fixedly connected to the inner wall of the oil cylinder 604. An annular shell 601 is provided on the surface of the oil bladder 602, and the surface of the annular shell 601 is fixedly connected to the inner wall of the sleeve 2.
[0030] When the insert post 4 enters the sleeve 2, it first contacts and presses against the receiving plate. Then the receiving plate will move backward and drive the piston rod 605 into the oil cylinder 604. At this time, the flowing medium in the oil cylinder 604 will be injected into the oil bladder 602 through the oil pipe. The oil bladder 602 will expand and contact the surface of the insert post 4. At this time, the insert post 4 will complete the first step of limiting.
[0031] When lifeboats are sailing, collisions are inevitable due to the deceleration of the lifeboat in front. However, since the hydraulic cylinder 604 contains a fluid medium, the flow of the liquid can generate a certain pressure, which can provide a buffer and damping effect between lifeboats, reducing the occurrence of collisions. At the same time, it can also provide protection for the connecting and fixing structure, ensuring the connection and fixing effect between lifeboats.
[0032] The surface of the sleeve 2 is movably connected to the snap-fit shell 3 via a rotating shaft. The snap-fit shell 3 has a snap-fit hole on its surface, and the inner wall of the snap-fit hole fits against the surface of the insertion post 4. The lower inner part of the connecting plate 1 has an insertion hole, and a positioning rod 5 is inserted into the insertion hole. The positioning rod 5 is inserted into the surface of the snap-fit shell 3.
[0033] Personnel then close the snap-fit housing 3, so that the snap-fit hole of the snap-fit housing 3 engages with the surface of the insertion post 4. Then, the positioning rod 5 is inserted into the insertion hole. At this time, the snap-fit housing 3 will be locked, the insertion post 4 will be limited at the same time, and the two lifeboats will be connected and fixed as a whole.
[0034] Then, the remaining lifeboats can be secured and connected in the same manner as described above.
[0035] Working principle: In actual use, the connecting plate 1 is first fixed to the stern of the lifeboat using screws or other connecting structures. Then, the insertion pin 4 is fixed to the front of the rear lifeboat. At this time, the rear lifeboat is moved forward so that the insertion pin 4 is inserted into the sleeve 2. When the insertion pin 4 enters the sleeve 2, it first contacts and presses against the receiving plate. Then, the receiving plate will move backward and drive the piston rod 605 into the oil cylinder 604. At this time, the flowing medium in the oil cylinder 604 will be injected into the oil bladder 602 through the oil pipe. The oil bladder 602 will inflate and contact the surface of the insertion pin 4. At this time, the insertion pin 4 has completed the first step of limiting. Subsequently... Personnel then close the snap-fit housing 3, so that the snap-fit hole of the snap-fit housing 3 engages with the surface of the insertion post 4. Then, the positioning rod 5 is inserted into the insertion hole. At this time, the snap-fit housing 3 will be locked, and the insertion post 4 will also be limited. The two lifeboats will also be connected and fixed as a whole. Then, personnel can fix and connect the remaining lifeboats in the same way. When the lifeboats are sailing, collisions are inevitable due to the deceleration of the lifeboat in front. However, since the hydraulic cylinder 604 contains a flowing medium, it can provide a buffer between the lifeboats, reduce the phenomenon of collisions, and also provide protection for the connection and fixing structure, ensuring the connection and fixing effect between the lifeboats.
[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style 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.
Claims
1. A lifeboat which is easy to secure, characterised in that Include: The connecting plate (1) arranged at the back of the lifeboat and the sleeve (2) arranged inside it, one side of the sleeve (2) is provided with a plug-in column (4) matched with its cavity; The locking assembly (6) is arranged in the sleeve (2) and can keep the plug-in column (4) stable; Wherein, the locking assembly (6) includes an oil bag (602) arranged inside the sleeve (2), the oil bag (602) is designed in a ring shape, the inner diameter of the oil bag (602) is close to the diameter of the plug-in column (4).
2. A boat according to claim 1, wherein: The locking assembly (6) further comprises an oil cylinder (604) arranged inside the sleeve (2), the gas outlet end of the oil cylinder (604) is communicated with the oil bag (602) through an oil pipe, the inside of the oil cylinder (604) is horizontally slidably connected with a piston rod (605), one end of the piston rod (605) close to the plug-in column (4) is provided with a receiving plate.
3. A boat according to claim 2, wherein: The receiving plate is designed in a semicircular hollow type, and the receiving plate is matched with the end of the plug-in column (4).
4. A boat according to claim 2, wherein: The rear end of the piston rod (605) is fixedly connected with a spring (603), the other end of the spring (603) is fixedly connected with the inner wall of the oil cylinder (604).
5. A boat according to claim 1, wherein: The surface of the oil bag (602) is provided with a ring-shaped shell (601), the surface of the ring-shaped shell (601) is fixedly connected with the inner wall of the sleeve (2).
6. A boat according to claim 1, wherein: The surface of the sleeve (2) is movably connected with a clamping shell (3) through a rotating shaft, the surface of the clamping shell (3) is provided with a clamping hole, and the inner wall of the clamping hole is matched with the surface of the plug-in column (4).
7. A boat according to claim 1, wherein: The lower inside of the connecting plate (1) is provided with a plug hole, the plug hole is inserted with a positioning rod (5), and the positioning rod (5) is inserted into the surface of the clamping shell (3).
Citation Information
Patent Citations
A kind of splicable aluminum alloy rescue boat
CN222728224U