CN2039662U

CN2039662U - Releaser under hydrostatic pressure

Info

Publication number: CN2039662U
Application number: CN 88204192
Authority: CN
Inventors: 邬静龙
Original assignee: NINGBO SHIP VALVE FACTORY
Current assignee: NINGBO SHIP VALVE FACTORY
Priority date: 1988-04-12
Filing date: 1988-04-12
Publication date: 1989-06-21

Abstract

The utility model discloses a releaser under hydrostatic pressure, which is a necessary facility of life-raft. The times of the unhooking force transmission of the existing releaser under the hydrostatic pressure is more, and the performance isn't stable enough. The releaser under the hydrostatic pressure comprises a sealing hydrostatic pressure cavity, a manual release unhooking device and an automatic release unhooking device. The automatic release unhooking device adopts one hook, which makes the structure of the releaser under the hydrostatic pressure simpler and the performance more reliable. The releaser under the hydrostatic pressure can be widely used on the inflatable life rafts of various ships as a necessary supporting facility.

Description

Releaser under hydrostatic pressure

The indispensable device of a kind of liferaft, hydrostaticrelease unit.

Air inflation raft is the main life of boats and ships, and a kind of quick release device of hydrostaticrelease unit when being the air inflation raft free-floating, can sink less than four meters depths in maritime distress, the bandage of automatic release colligation on air inflation raft, raft is freely floated, thereby the disengaging shipwreck reaches the lifesaving purpose.

Existing commercially available hydrostaticrelease unit, as shown in Figure 3, its unhook is two, when releaser is subjected to the pressure of water and when making mandrel the arrow A direction moving in Fig. 1, (the 2) ' clockwise direction that breaks off relations rotates, and drives to break off relations (2) " anticlockwise motion; thereby make chain link by break off relations (2) ' in skid off; make the air inflation raft that is placed in the cartridge break away from shipwreck, more because of unhook power degree of transitivity, performance is stable inadequately.

The purpose of this utility model is to provide a kind of follow-on hydrostaticrelease unit, has both kept the function of original rapid release and hook, makes structure simpler, and more reliable performance has reduced cost again, and safety has also improved.

The utility model is achieved in that hydrostaticrelease unit is by sealing static pressure chamber, manual releasing, automatic release two cover trip mechanisms constitute, sealing static pressure chamber is made up of spring, diaphragm, enclosing cover, inner cap, stage clip lid, bottom, seal ring, mandrel, core print seat, nut, the automatic release trip mechanism is made up of tank top plate, Outer Bottom Plating, unhook, lining, bolt, nut, pivot pin, and unhook quantity is 1.The manual releasing trip mechanism is made up of circle ring, spring cotter, chain link, chain hook, and shackle, easily broken rope, the thimble that resets are auxiliary member.

Fig. 1, hydrostaticrelease unit structural representation.(not comprising the manual releasing trip mechanism)

Tank top plate (1), break off relations (2), Outer Bottom Plating (3), lining (4), bolt, nut (5), core print seat (6), mandrel (7), the thimble that resets (8), bottom (9), diaphragm (10), inner cap (11), stage clip lid (12), enclosing cover (13), spring (14), nut (15), seal ring (16).

Fig. 2, take away Outer Bottom Plating (3) hydrostaticrelease unit structural representation.

Circle ring (17), spring cotter (18), chain link (19), chain link (20), pivot pin (21), easily broken rope (22), shackle (23), bow rope (24), chain hook (25).

Fig. 3, take away the existing hydrostaticrelease unit structural representation of Outer Bottom Plating (3).

Break off relations (2) ', break off relations (2) ".

Fig. 4, hydrostaticrelease unit scheme of installation.

The automatic release tripping gear of this hydrostatic release unit, adopt the structure of a unhook just can finish the function that automatically discharges and link up with fast, therefore it will be more simple in structure than like product, easy to use, cost is low, be convenient to promote the use of, can be widely used in and make indispensable auxiliary facility on the air inflation raft of various ships.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

With reference to Fig. 1, mandrel (7) packs into core print seat (6), bottom (9), diaphragm (10), stage clip lid (12), in the hole of seal ring (16), be tightened with nut (15), core print seat (6) and inner cap (11), tank top plate (1) close-fitting, what break off relations is shaped as moon bending, unhook (2) is inserted in the pivot pin (21), tank top plate (1), Outer Bottom Plating (3) is used bolt, nut (5) is fixed on the inner cap (11), Outer Bottom Plating has a reset hole on (3), spring (14) is put into stage clip lid (12), cover enclosing cover (13) again, screw on bolt at last again, nut (5), this part are the sealing static pressure chamber and the automatic release trip mechanism of releaser.

With reference to Fig. 2, chain hook (25) is connected with chain link (19), shackle (23) is connected with chain link (20), circular circle ring (17) is enclosed within the general gauge member spring cotter (18), spring cotter (18) and neat two ends are injected in the aperture on chain hook (25) one ends again, and then spring cotter (18) and neat two ends to the both sides bending, be buckled on the chain hook (25), little ring on the chain hook (25) is blocked is not skidded off.Chain link (19) is enclosed within the unhook (2), and this part is the manual releasing trip mechanism.Bow rope (24), easily broken rope (22) are arranged in the shackle (23).Hydrostaticrelease unit utilizes three holes on it to be vertically fixed on the cross bar of liferaft frame with bolt, the liferaft frame is fixed on the deck of ship, air inflation raft is placed in the cartridge, cartridge is fixed on the liferaft frame, as shown in Figure 4 by the circle chain of bandage and hydrostaticrelease unit.

Boats and ships adopt the also bandage on the releasable liferaft of manual releasing when normal navigation, liferaft is thrown in the water.Only need hold circle ring (17) during manual releasing, pull out spring cotter (18) the little ring on the chain hook (25) is up pushed away one, chain hook (25) just can break away from chain link (19), and fixedly the bandage used of cartridge just unclamps voluntarily, with the liferaft outboard of dishing out.

If the wrack sinking is very fast, has little time manually to discharge, but rely on hydrostaticrelease unit automatic release liferaft.When boats and ships sink, water is entered in the storage chamber by the inlet opening of releaser on the one hand, one side of diaphragm is subjected to the pressure of water, the buoyancy that produces in the liferaft cartridge immersion water on the other hand, unhook (2) by releaser radially has a pressure to mandrel (7), along with the degree of depth of sinking increases, these two power all increase gradually, to certain depth (during 2～4m), diaphragm is subjected to the pressure of water to overcome the spring force of annular seal space and mandrel (7) friction force when mobile, and diaphragm (10), mandrel (7) arrow A direction in Fig. 1 move.The buoyancy that is caused by cartridge makes unhook (2) stressed and clockwise rotate around axle, chain link (19) is by skidding off in break off relations (2), cartridge is just at the buoyancy float downward, air inflation raft is inflation thereupon also, after shipwreck sinks to certain depth, easily broken rope (22) disconnects, and liferaft is promptly separated with shipwreck, and persons falling in water can be climbed up liferaft.If releaser because of the action of non-use reason after, should reset, repositioning method be with the thimble (8) that resets by the reset hole on the Outer Bottom Plating (3), mandrel (7) arrow A direction in Fig. 1 is moved, will break off relations then (2) are pushed into original position and get final product.

Claims

1, the indispensable device of a kind of liferaft, hydrostaticrelease unit, the automatic release trip mechanism is by tank top plate (1), break off relations (2), Outer Bottom Plating (3), lining (4), bolt, nut (5), pivot pin (21) is formed, sealing static pressure chamber is by core print seat (6), mandrel (7), bottom (9), diaphragm (10), inner cap (11), stage clip lid (12), enclosing cover (13), spring (14), nut (15), seal ring (16) is formed, the manual releasing trip mechanism is by circle ring (17), spring cotter (18), chain link (19), chain link (20), chain hook (25) is formed, easily broken rope (22), shackle (23), the thimble (8) that resets is an auxiliary member, and (2) quantity that it is characterized in that breaking off relations in the automatic release trip mechanism is 1.

2, according to the releaser of claim 1, it is characterized in that breaking off relations (2) be shaped as moon bending, be enclosed within on the pivot pin (21).