CN220555377U

CN220555377U - Ship life raft releasing device

Info

Publication number: CN220555377U
Application number: CN202321604467.8U
Authority: CN
Inventors: 林连军; 王庆芬; 陈成亮
Original assignee: Ningbo Chiyang Electronic Co ltd
Current assignee: Ningbo Chiyang Electronic Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-03-05
Anticipated expiration: 2033-06-21

Abstract

The utility model relates to a ship life raft releasing device, wherein a releaser comprises a lower cover, an upper cover which is covered with the lower cover, and a pressure sensing membrane which divides a space between the lower cover and the upper cover into an upper cavity and a closed lower cavity; the pressure sensing film is also provided with a second ejector piece which can limit the first ejector piece to push the cutter to move towards the first connecting rope and release the limitation when the pressure sensing film moves downwards; the method is characterized in that: the releaser is provided with a pressure maintaining mechanism which can maintain the air pressure in the releaser within a certain range when the air pressure is affected by temperature. Compared with the prior art, the utility model has the advantages that: the ship life raft releasing device can work normally when the temperature influences the pressure, namely the life raft is not released from being fixed when a certain water depth is not reached, and the structure is simple and practical.

Description

Ship life raft releasing device

Technical Field

The utility model relates to the field of ship auxiliary equipment, in particular to a ship life raft releasing device.

Background

The life raft is a life raft equipped with life equipment for emergency escape, which is mostly fixed on the ship through life raft releasing devices, and when an emergency occurs, the life raft releasing devices act to release the fixation of the ship to the life raft, so that the life raft falls into the water for escape. The existing life raft releasing device can automatically release the fixing of the life raft by utilizing the hydrostatic pressure when the ship sinks to wade, and the life raft releasing device is also provided with a pneumatic releasing function under the condition that the ship cannot wade, namely, the releasing device releases the fixing of the life raft by adopting a gunpowder blasting mode. Because the pressure releaser is a totally-enclosed device, when the pressure releaser is in a high-temperature environment, the pressure of the gas in the pressure releaser is influenced by temperature to be increased, the normal work of the pressure releaser can be disturbed, and the fixation of the life raft can be released when a certain water depth is not reached.

Disclosure of Invention

The technical problem to be solved by the present utility model is to provide a release device for a ship life raft, which can reduce the interference to normal operation due to temperature influence, aiming at the prior art.

The technical scheme adopted for solving the technical problems is as follows: a ship life raft releasing device comprises a releaser, a first connecting rope penetrating through the releaser, a second connecting piece connecting a ship with one end of the first connecting rope, a first connecting piece connecting the life raft with the other end of the first connecting rope, a liquid electrolytic capacitor, a main control unit connected with the liquid electrolytic capacitor to provide explosion overvoltage for the liquid electrolytic capacitor, and a remote controller for sending an action instruction to the main control unit; the releaser comprises a lower cover, an upper cover which is covered with the lower cover, and a pressure sensing membrane which divides the space between the lower cover and the upper cover into an upper cavity and a closed lower cavity; the pressure sensing film is also provided with a second ejector piece which can limit the first ejector piece to push the cutter to move towards the first connecting rope and release the limitation when the pressure sensing film moves downwards; the method is characterized in that: the releaser is provided with a pressure maintaining mechanism which can maintain the air pressure in the releaser within a certain range when the air pressure is affected by temperature.

In order to enable the pressure maintaining mechanism to maintain the air pressure within a certain range when the pressure of the air in the pressure releaser is affected by temperature, the shell of the pressure releaser is provided with an air vent, the pressure maintaining mechanism comprises an air permeable sheet arranged in the air vent, and the air permeable sheet is used for enabling the air in the pressure releaser to enter the external atmosphere through the air permeable sheet when the pressure of the air in the pressure releaser is sensed to exceed a preset value.

The ventilation sheet is arranged in the ventilation holes in various modes, and preferably, the ventilation sheet is fixed in the ventilation holes by glue.

Preferably, the breathable sheet material is a ceramic sheet.

In order to fix the ventilation sheet in the ventilation hole, a raised seat body is arranged at the circumference of the ventilation hole, and the ventilation sheet is fixed in the seat body by glue.

Preferably, the two ends of the first connecting rope are connected to form a connecting ring, and the first connecting piece comprises a connecting ring penetrating through the connecting ring, a release hook which is hooked on the connecting ring and can open the release connecting ring, and a second connecting rope which is used for connecting the upper end of the release hook with the life raft.

Preferably, the second connecting piece comprises a U-shaped fixing frame arranged on the ship, and the connecting ring is arranged in the U-shaped fixing frame in a penetrating mode.

In order to enable the inflatable release of the liferaft, the release device further comprises a frangible ring penetrating the U-shaped fixing frame and a throwing rope connecting the frangible ring and the inflatable part of the liferaft, wherein the throwing rope pulls the inflatable part after the liferaft is released so as to enable the liferaft to be inflated automatically and the frangible ring is broken when the pulling force reaches a limit value so as to release the liferaft completely.

Compared with the prior art, the utility model has the advantages that: the pressure maintaining mechanism which maintains the air pressure within a certain range when the air pressure in the pressure releaser is affected by the temperature is arranged on the releaser, so that the ship life raft releasing device can work normally when the pressure is affected by the temperature, namely, the life raft is not released from being fixed when the water depth is not reached, and the structure is simple and practical.

Drawings

Fig. 1 is a schematic view of a release device for a ship life raft according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 with the release hook in an open state;

FIG. 3 is a cross-sectional view of the release of FIG. 1 taken along the line of the pressure retention mechanism;

fig. 4 is a schematic view of a cutter structure in an embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 4, a ship life raft releasing device comprises a releaser 1, a first connecting rope 2 penetrating the releaser 1, a second connecting piece connecting one end of the ship and the first connecting rope 2, a first connecting piece connecting the life raft and the other end of the first connecting rope 2, a liquid electrolytic capacitor 31, a main control unit 32 connected with the liquid electrolytic capacitor 31 to provide explosion overvoltage for the liquid electrolytic capacitor 31, and a remote controller 33 for sending an action command to the main control unit 32.

Wherein, the releaser 1 comprises a lower cover 11, an upper cover 12 covered with the lower cover 11, and a pressure sensing membrane 15 for dividing the space between the lower cover 11 and the upper cover 12 into an upper cavity 14 and a closed lower cavity 13; a cutter 16 capable of cutting off the first connecting rope 2 and a first ejector member connected with the cutter 16 for ejecting the cutter 16 to move towards the first connecting rope 2 are arranged above the pressure sensing film 15, and a second ejector member capable of limiting the first ejector member to push the cutter 16 to move towards the first connecting rope 2 and releasing limitation when the pressure sensing film 15 moves downwards is also arranged on the pressure sensing film 15; the releaser 1 is provided with a pressure holding mechanism 7 which can keep the gas pressure within a certain range when the gas pressure inside the releaser 1 is affected by temperature.

Specifically, the upper cover 12 includes a cover 121 and a protruding cover 122 disposed on the cover 121, a protruding cavity 123 is formed between the cover 121 and the protruding cover 122, the upper cavity 14 is formed by a space between the cover 121 and the pressure sensing membrane 15, the cutter 16 and the first ejector member are disposed in the protruding cavity 123, the first ejector member includes a first spring 17 with one end connected to the cutter 16 and the other end abutting against a side wall of the protruding cover 122, a bar-shaped groove 161 for extending one end of the first spring 17 is disposed on the cutter 16, the second ejector member includes a limit post 151 disposed on an upper surface of the pressure sensing membrane 15, a support plate 152 disposed on a lower surface of the pressure sensing membrane 15, and a second spring 153 disposed between the support plate 152 and a bottom plate of the lower cover 11, a limit hole 162 is disposed on the cutter 16, a through hole 124 is disposed on the cover 121, the limit post 151 extends into the limit hole 162 after extending from the through hole 124, so as to limit the cutter 16, and the limit post 151 moves downward to release the limit of the cutter 16, and then the first spring 17 ejects 16 to the first connecting rope 2 to cut off the first connecting rope 2.

In this embodiment, the casing of the releaser 1 is provided with a ventilation hole 1a, and the pressure maintaining mechanism 7 includes a ventilation sheet 71 disposed in the ventilation hole 1a, where the ventilation sheet 71 is used to enable the internal gas to enter the external atmosphere through the ventilation sheet 71 when the pressure of the gas in the releaser 1 is sensed to exceed a preset value. The ventilation sheet 71 is fixed in the ventilation holes 1a by glue, and the ventilation sheet 71 is made of ceramic. The circumference of the ventilation hole 1a is provided with a raised seat body 1b, and the ventilation sheet 71 is fixed in the seat body 1b by glue.

The first connecting rope 2 is connected at both ends to form a connecting ring, and the first connecting piece comprises a connecting ring 41 penetrating through the connecting ring, a releasing hook 42 hooked on the connecting ring 41 and capable of opening the releasing connecting ring 41, and a second connecting rope 43 connecting the upper end of the releasing hook 42 with the life raft. The releasing hook 42 comprises a body 421, a hook head 422 hinged to the lower end of the body 421, a loop 423 arranged at the upper end of the body 421, and a collar 424 capable of fixing the hook head 422 near the body 421, wherein the collar 424 is moved upwards to separate the hook head 422 from the collar 424, so that the hook head 422 can be rotated downwards, the connecting ring is separated from the releasing hook 42, manual release of the life raft is realized, the connection mode of the second connecting rope 43 and the loop 423 can be various, such as a tightener, a knotting mode and the like, and the connection mode of knotting is adopted in the embodiment.

The second connecting piece comprises a U-shaped fixing frame 5 arranged on the ship, and the connecting ring is arranged in the U-shaped fixing frame 5 in a penetrating way. The release device further comprises a frangible ring 61 penetrating the U-shaped holder 5 and a throwing rope 62 connecting the frangible ring 61 with the inflatable member of the liferaft, the throwing rope 62 pulling the inflatable member after the liferaft is released to automatically inflate the liferaft and breaking the frangible ring 61 to completely release the liferaft when the pulling force reaches a limit value.

In this embodiment, the protruding cover 122 of the upper cover 12 is provided with a receiving groove 1221, the liquid electrolytic capacitor 31 is embedded in and fixed to the receiving groove 1221, the protruding cover 122 is provided with a lead hole 1222 at the receiving groove 1221, and the liquid electrolytic capacitor 31 is electrically connected to the main control unit 32 through a cable 34 passing through the lead hole 1222. The power supply in the main control unit 32 in this embodiment adopts a disposable lithium battery pack power supply. In order to enable the release device to release the liferaft when no personnel are present, the remote control 33 is provided with a brine switch which automatically gives instructions to the main control unit 32 when water is encountered.

The release device operates on the following principle of releasing the liferaft:

when the ship sinks, the releaser 1 continuously enters the upper cavity 14, and forms a pressure for deforming the pressure sensing film 15 towards the lower cavity 13, when the ship sinks to a certain depth such as 1.5-4 meters away from the sea surface, the seawater pressure acting on the pressure sensing film 15 is enough to overcome the air pressure in the lower cavity 13 and the elasticity of the second spring 153, the pressure sensing film 15 is pushed downwards, so that the limit post 151 moves downwards along with the pressure sensing film 15, when the limit post 151 releases the limit of the cutter 16, the cutter 16 moves rapidly towards the direction of the first connecting rope 2 and cuts off the first connecting rope 2 under the pushing of the elasticity of the first spring 17, at the moment, the life raft breaks away from the constraint of the first connecting rope 2, and floats freely, when the ship continues to sink, the throwing rope 62 of the life raft is tensioned, so that the inflatable part of the life raft is opened and inflated, when the tension on the throwing rope 62 exceeds the breaking strength of the frangible ring 61, the frangible ring 61 breaks, and the life raft completely breaks away from the life raft, and the life raft can completely ascends on the life-saving and can ascend by the life-saving person;

when the releaser 1 cannot wade, a control button on the remote controller 33 is operated, so that the disposable lithium battery pack power supply in the main control unit 32 outputs explosion overvoltage to the liquid electrolytic capacitor 31, the liquid electrolytic capacitor 31 explodes, the pressure in the upper cavity 14 is instantaneously increased, the pressure sensing film 15 is pushed to move downwards, and the first connecting rope 2 is cut off to release the life raft; when the brine switch in the remote controller 33 encounters water under the unattended condition, a signal can be sent to the remote controller 33, so that the remote controller 33 automatically sends an action instruction to the main control unit 32 to output overvoltage to the liquid electrolytic capacitor 31, and further release of the life raft is completed;

if it is desired to manually release the liferaft, the collar 424 is slid upwards, causing the hook head 422 of the release hook 42 to disengage from the collar 424, and the hook head 422 is rotated downwards, causing the attachment ring to disengage from the hook head, thus achieving release of the liferaft.

Claims

1. The utility model provides a boats and ships life raft release, including release (1), wear to establish on release (1) first connecting rope (2), connect boats and the one end of first connecting rope (2) second connecting piece, connect life raft and the other end of first connecting rope (2) first connecting piece, liquid electrolytic capacitor (31), with liquid electrolytic capacitor (31) link in order to provide explosion overvoltage's main control unit (32) and be used for sending action command's remote controller (33) to main control unit (32); the releaser (1) comprises a lower cover (11), an upper cover (12) which is covered with the lower cover (11), and a pressure sensing membrane (15) which divides the space between the lower cover (11) and the upper cover (12) into an upper cavity (14) and a closed lower cavity (13); a cutter (16) capable of cutting off the first connecting rope (2) and a first ejection piece connected with the cutter (16) to eject the cutter (16) to move towards the first connecting rope (2) are arranged above the pressure sensing film (15), and a second ejection piece capable of limiting the first ejection piece to push the cutter (16) to move towards the first connecting rope (2) and removing limitation when the pressure sensing film (15) moves downwards is also arranged on the pressure sensing film (15); the method is characterized in that: the releaser (1) is provided with a pressure holding mechanism (7) which can keep the air pressure within a certain range when the air pressure in the releaser (1) is influenced by the temperature.

2. A ship life raft release as claimed in claim 1, wherein: the air hole (1 a) is formed in the shell of the releaser (1), the pressure maintaining mechanism (7) comprises an air permeable sheet (71) arranged in the air hole (1 a), and the air permeable sheet (71) is used for enabling internal air to enter the external atmosphere through the air permeable sheet (71) when the air pressure in the releaser (1) is sensed to exceed a preset value.

3. A ship life raft release as claimed in claim 2, wherein: the ventilation sheet (71) is fixed in the ventilation holes (1 a) by glue.

4. A ship life raft release as claimed in claim 2, wherein: the ventilation sheet (71) is made of ceramic sheet.

5. A ship liferaft release as claimed in claim 3 wherein: the circumference of the ventilation hole (1 a) is provided with a raised seat body (1 b), and the ventilation sheet (71) is fixed in the seat body (1 b) by glue.

6. A marine life raft release according to any one of claims 1 to 5, wherein: the two ends of the first connecting rope (2) are connected to form a connecting ring, and the first connecting piece comprises a connecting ring (41) penetrating through the connecting ring, a release hook (42) which is hooked on the connecting ring (41) and can open the release connecting ring (41), and a second connecting rope (43) which is used for connecting the upper end of the release hook (42) with the life raft.

7. A ship life raft release as claimed in claim 6, wherein: the second connecting piece comprises a U-shaped fixing frame (5) arranged on the ship, and the connecting ring is arranged in the U-shaped fixing frame (5) in a penetrating mode.

8. A ship life raft release as claimed in claim 7, wherein: the release device further comprises a frangible ring (61) penetrating the U-shaped fixing frame (5) and a throwing rope (62) connecting the frangible ring (61) and the inflatable part of the life raft, the throwing rope (62) pulls the inflatable part after the life raft is released so as to enable the life raft to be inflated automatically, and the frangible ring (61) breaks when the pulling force reaches a limit value so as to release the life raft completely.