CN115924033A

CN115924033A - Marine rescue thrower

Info

Publication number: CN115924033A
Application number: CN202211239257.3A
Authority: CN
Inventors: 孙东明; 朱蕾; 袁刚; 任广鲁; 陈如木; 卢佳琦
Original assignee: Chinese People's Liberation Army 92942 Army
Current assignee: Chinese People's Liberation Army 92942 Army
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-04-07

Abstract

The invention provides a maritime rescue throwing device, which relates to the field of throwing devices and comprises: place the base, sliding connection has the sliding seat in placing base top end face, install driving motor in placing base back side wall, it has gas cylinder support to place base left side top articulated, place the air supply bottle among the gas cylinder support, gas cylinder support top is connected with the connecting sleeve cap, connecting sleeve cap outer wall front side is connected with takes the holding rod, it has the transmission joint to peg graft at connecting sleeve cap top, transmission joint top threaded connection has clamping nut, the launching tube has been pegged graft in the clamping nut, the launching tube is pegged graft on the tight seat of transmission joint top, force tight seat to clip the launching tube bottom through rotating clamping nut, the firm in connection nature of launching tube has been improved, the interchange use of the multiple launching tube of jettison ware has been realized, the ability of jettison different article of jettison ware jettison has been improved, the problem that the jettison ware structure can not be general and the mistake touches danger height is solved.

Description

Marine rescue thrower

Technical Field

The invention relates to the technical field of throwing devices, in particular to a maritime rescue throwing device.

Background

The throwing device is rescue equipment which takes compressed air as power and throws ropes, life buoys, anchor hooks and the like to a target, various throwing objects are launched according to different task requirements, and the throwing device is mainly used for offshore operations such as offshore mooring, personnel rescue, replenishment, berthing and the like, emergency rescue tasks and the like, but the throwing device has certain defects in practical use.

Based on the above, the existing rescue throwing device has the following disadvantages:

1. because the structure of the throwing device is special, the structure of the throwing device cannot be universal, so that the throwing device cannot be used by matching with different types of launching tubes, the use of the throwing device is limited, and the applicability is not strong enough.

2. The thrower is inconvenient to disassemble, so that the replacement of the gas cylinder of the thrower is inconvenient, the gas cylinder is not protected, the gas cylinder is easy to damage, the gas cylinder is short of gas, and the normal use of the thrower is influenced.

3. The throwing device is mostly of a handle type launching structure, even if the throwing device is provided with a safety device, the throwing device is very easy to mistakenly touch when being taken, and great potential safety hazards are achieved.

Disclosure of Invention

In view of the above, the invention provides a marine rescue throwing device, which forms a locking mechanism through a fixing piece and a locking piece, so that a connecting sleeve cap and a gas cylinder bracket can be conveniently connected, the convenience for replacing a gas supply cylinder is improved, the continuous throwing capability of the throwing device is improved, a pressing rod in sliding connection in a pressing guide sleeve can be pressed through a guide rod and other cylindrical objects, when the pressing rod is pressed, the pressing rod can push a sealing block to slide, high-pressure gas is sprayed out of a gas supply cylinder, the design that the throwing device can be started only through the matching of the guide rod and the pressing rod is realized, the occurrence of the misfiring condition can be effectively prevented, and the use safety of the marine rescue throwing device is improved.

The invention provides a maritime rescue throwing device, which specifically comprises: place the base, it is provided with two anti-skidding heelpieces to place base bottom symmetry, the cylindrical arch in anti-skidding heelpiece top is pegged graft and is being placed base bottom terminal surface, sliding connection has the sliding seat in placing base top terminal surface, install driving motor in placing base rear side wall, it has the gas cylinder support to place base left side top articulated, the gas supply bottle has been placed among the gas cylinder support, gas cylinder support top is connected with the connecting sleeve cap, connecting sleeve cap outer wall front side is connected with takes the holding rod, it has the emission joint to peg graft at connecting sleeve cap top, emission joint top threaded connection has clamping nut, the intussuseption of clamping nut has the transmitting tube.

Further, the rear side of the top end face of the placing base is provided with a long-strip-shaped I-shaped groove, a sliding seat is connected to the I-shaped groove in a sliding mode, a control screw connected to the front end of a driving shaft of a driving motor is rotatably connected to the middle of the I-shaped groove, the sliding seat is in threaded connection with the control screw, and a hinge seat is arranged on the front side of the top end face of the placing base.

Further, the middle of the bottom and the rear side wall of the gas cylinder support is provided with a hinged joint, the hinged joint at the bottom of the gas cylinder support is connected to a hinged seat for placing the base, the hinged joint at the middle of the rear side wall of the gas cylinder support is connected with a sliding seat through a connecting rod, and four locking fasteners are arranged on the outer side wall of the top of the gas cylinder support in an annular array mode.

Further, the top of air supply bottle is provided with the joint, and the top that connects is provided with the gas outlet, and the front side that connects is provided with presses the mouth, and the inside sliding connection that connects has the shutoff piece, and the shutoff piece is stifled between gas outlet and air supply bottle intercommunicating pore, and the shutoff piece rear side is provided with the shutoff spring.

Further, the connecting sleeve cap is bullet head-shaped, four fixing pieces are arranged on the outer side wall of the bottom of the connecting sleeve cap in an annular array mode, the fixing pieces and the locking pieces on the outer side of the top of the gas cylinder support form a finished locking mechanism, a pressing guide sleeve is arranged in the middle of the front side wall of the connecting sleeve cap and is hollow, a pressing rod is connected inside the pressing guide sleeve in a sliding mode, a pressing reset spring is sleeved on the outer wall of the rear side of the pressing rod, the rear end of the pressing rod is in contact with the front end of a plugging block, and communicated fixing jacks are formed in the top of the front side wall and the top of the rear side wall of the connecting sleeve cap.

Further, the back lateral wall top of holding the pole is provided with fixed cover, and fixed cover cup joints department in the middle of connecting sleeve cap lateral wall, and the lateral wall bottom has seted up the perforation around the pole of holding, is provided with the spacing ring on the pole back side wall that holds that the perforation corresponds, has cup jointed the thread connection cover on the spacing ring outside portion, and thread connection cover rear side threaded connection presses the guide pin bushing front side at the connecting sleeve cap, sliding connection has the guide arm in the perforation, and the guide arm rear end contacts with according to the press the pole front end.

Furthermore, a connecting pipe is arranged at the bottom of the transmitting connector, the bottom of the connecting pipe is inserted into an air outlet in the top of the air supply bottle, two fixing holes are symmetrically formed in the middle of the front side wall and the rear side wall of the transmitting connector, the fixing holes correspond to fixing insertion holes formed in the connecting sleeve caps, and fixing bolts are inserted into the fixing holes and the fixing insertion holes.

Furthermore, a clamping seat is placed in the top end face of the transmitting connector, the inner side wall of the top of the transmitting connector is in threaded connection with the outer side wall of the bottom of the clamping nut, the bottom of the clamping nut is clamped at the top of the clamping seat, and the bottom of the transmitting pipe is inserted into the clamping seat and penetrates through the clamping nut.

Compared with the prior art, the invention has the following beneficial effects:

1. through the latched device that mounting and snap close piece constitute, conveniently connect the connecting sleeve cap and be connected with the gas cylinder support, the convenience that the air supply bottle was changed and the ability of throwing in succession of ware have been improved, and press down sliding connection's in the guide pin bushing according to the press rod need through cylindrical object such as guide arm could press, when pressing according to the press rod, just can promote the sliding of shutoff piece according to the press rod, make high-pressure gas spout from the air supply bottle, realized the guide arm and according to the design that the cooperation of press rod could start the ware of throwing, can effectively prevent the emergence of the spurious emission condition, improve the safety in utilization of marine rescue ware of throwing. 2. The holding rod is fixed on the front side wall of the connecting sleeve cap through the fixing sleeve and the threaded connecting sleeve, so that the convenience of taking the connecting sleeve cap is improved.

3. Through pegging graft the adapter sleeve top with the transmission joint, and make the fixed orifices align with fixed jack, then carry out fixed connection through fixing bolt, thereby make the connecting pipe of transmission joint bottom and the gas outlet firm in connection at air feed bottle top, prevent gas leakage, peg graft the transmission pipe on the tight seat of clamp at transmission joint top, it presss from both sides the transmission bottom to force tight seat of clamp through rotating clamping nut, the firm in connection of transmission pipe has been improved, the interchange use of the multiple transmission pipe of ware of jettisoninging has been realized, the ability of different article of jettisoninging of ware of jettisoninging has been improved.

4. Through placing the anti-skidding heelpiece that the base bottom set up, improved the stability of placing the base, prevent that the ware of jettisoninging from taking place the slope when using, and the gas cylinder support in the gas cylinder connects the shutoff piece and need the guide arm and just enable the shutoff piece to take place to slide according to the cooperation of pressing the pole to realize high-pressure gas feed, improved the control to gas supply bottle safe handling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings in the following description relate to some embodiments of the invention only and are not intended to limit the invention.

In the drawings:

fig. 1 is an overall front right-side axial view of a projectile throwing apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic view of an overall disassembled structure of the throwing device of the embodiment of the invention.

Fig. 3 is a sectional structural schematic diagram of the throwing device placing base, the gas cylinder bracket and the connecting sleeve cap in the embodiment of the invention.

Fig. 4 is a schematic view of the connection structure of the placement base and the gas cylinder bracket of the throwing device in the embodiment of the invention.

Fig. 5 is a sectional view of the placement base of the projectile apparatus according to the embodiment of the present invention.

Figure 6 is a schematic view of the connection cap and firing adaptor connection of the projectile in accordance with an embodiment of the invention.

Fig. 7 is a sectional view of the connecting cap and the holding rod of the throwing device according to the embodiment of the present invention.

Figure 8 is a cutaway view of the connection cap and firing adaptor of the projectile launcher embodying the present invention.

List of reference numerals

1. Placing a base; 101. an I-shaped groove; 102. a hinged seat; 2. an anti-slip base pad; 3. a gas cylinder holder; 301. a hinge joint; 302. a fastener; 4. an air supply bottle; 401. an air outlet; 402. pressing the opening; 5. a plugging block; 501. plugging the spring; 6. a sliding seat; 7. a connecting rod; 8. a drive motor; 801. controlling the screw; 9. connecting a sleeve cap; 901. pressing the guide sleeve; 902. a fixing member; 903. fixing the jack; 10. a pressing lever; 1001. pressing the return spring; 11. holding the rod; 1101. fixing a sleeve; 1102. perforating; 1103. a limiting ring; 12. a threaded connecting sleeve; 13. a guide bar; 14. fixing the bolt; 15. a launch joint; 1501. a fixing hole; 1502. a connecting pipe; 16. a clamping seat; 17. clamping the nut; 18. and (4) launching the tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the embodiments of the present invention with reference to the accompanying drawings is provided for a complete description of the embodiments of the present invention. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference symbols in the various drawings indicate like elements.

Example (b): please refer to fig. 1 to 8:

the invention provides a maritime rescue throwing device which comprises a placing base 1, wherein two anti-skidding bottom cushions 2 are symmetrically arranged at the bottom of the placing base 1, cylindrical bulges at the tops of the anti-skidding bottom cushions 2 are inserted into the bottom end surface of the placing base 1, a sliding seat 6 is connected into the top end surface of the placing base 1 in a sliding way, a driving motor 8 is arranged in the rear side wall of the placing base 1, a gas cylinder bracket 3 is hinged at the top of the left side of the placing base 1, a gas supply cylinder 4 is arranged in the gas cylinder bracket 3, a connector is arranged at the top of the gas supply cylinder 4, a gas outlet 401 is arranged at the top of the connector, a pressing opening 402 is arranged at the front side of the connector, a blocking block 5 is connected into the connector in a sliding way, the blocking block 5 is blocked between the gas outlet 401 and a communication hole of the gas supply cylinder 4, the 5 rear sides of plugging blocks are provided with shutoff spring 501, 3 tops of gas cylinder support are connected with connecting sleeve cap 9, connecting sleeve cap 9 outer wall front side is connected with takes hold pole 11, it has transmission joint 15 to peg graft at connecting sleeve cap 9 top, transmission joint 15 top threaded connection has clamping nut 17, it has transmitting tube 18 to peg graft in clamping nut 17, concrete effect, through placing the anti-skidding heelpiece 2 that 1 bottom of base set up, stability when placing base 1 when placing is improved, prevent thrower use slope, and the plugging block 5 in the air supply bottle 4 joint among the gas cylinder support 3 needs guide arm 13 and the cooperation that presses down pole 10 makes plugging block 5 slide, thereby make air supply bottle 4 can carry out high pressure gas supply, thereby improve the control effect to air supply bottle 4 uses.

The rear side of the top end face of the placing base 1 is provided with a long-strip-shaped I-shaped groove 101, a sliding seat 6 is connected in the I-shaped groove 101 in a sliding mode, a control screw 801 connected with the front end of a driving shaft of a driving motor 8 is rotatably connected to the middle of the I-shaped groove 101, the sliding seat 6 is connected to the control screw 801 in a threaded mode, a hinged seat 102 is arranged on the front side of the top end face of the placing base 1, hinged joints 301 are arranged at the middle of the bottom and the middle of the rear side wall of a gas cylinder support 3, the hinged joints 301 at the bottom of the gas cylinder support 3 are connected to the hinged seat 102 of the placing base 1, the hinged joints 301 at the middle of the rear side wall of the gas cylinder support 3 are connected with the sliding seat 6 through a connecting rod 7, four locking pieces 302 are arranged on the outer side wall of the top of the gas cylinder support 3 in an annular array mode, the special effect is achieved, the control screw 801 is achieved through the driving motor 8 to drive the control screw 801 to rotate the sliding seat 6 through the control screw 801, the sliding seat 6 and the connecting rod 7 to adjust the inclination angle of the gas cylinder support 3, the casting distance of the gas cylinder support 3 is controlled, so that the gas cylinder support can meet the use requirements of ships and rescue at sea, the gas cylinder support for replacing emergency, the gas cylinders 4, and the gas cylinder support, and the emergency support can be used for replacing of the gas cylinders, and the gas cylinders.

The connecting sleeve cap 9 is bullet-shaped, four fixing pieces 902 are arranged on the outer side wall of the bottom of the connecting sleeve cap 9 in an annular array, the fixing pieces 902 and a locking piece 302 on the outer side of the top of a gas cylinder support 3 form a finished locking mechanism, a pressing guide sleeve 901 is arranged in the middle of the front side wall of the connecting sleeve cap 9 and is hollow, a pressing rod 10 is connected inside the pressing guide sleeve 901 in a sliding mode, a pressing reset spring 1001 is sleeved on the outer wall of the rear side of the pressing rod 10, the rear end of the pressing rod 10 is in contact with the front end of a blocking block 5, a communicated fixed jack 903 is formed in the top of the front side wall and the rear side wall of the connecting sleeve cap 9, the connecting sleeve cap 9 and the gas cylinder support 3 are connected conveniently through the locking mechanism formed by the fixing pieces 902 and the locking piece 302, convenience in replacement of the gas cylinder support 4 is improved, continuous use capacity of the throwing device is improved, the pressing rod 10 connected in a sliding mode can be pressed only through cylindrical objects such as a guide rod 13, and mistaken starting of the throwing gas supply bottle 4 is prevented from being sprayed out through the guide rod 13 and the matching of the throwing device.

The top of the rear side wall of the holding rod 11 is provided with a fixing sleeve 1101, the fixing sleeve 1101 is sleeved at the middle of the outer side wall of the connecting sleeve cap 9, the bottoms of the front side wall and the rear side wall of the holding rod 11 are provided with through holes 1102, the rear side wall of the holding rod 11 corresponding to the through holes 1102 is provided with a limiting ring 1103, the outer side part of the limiting ring 1103 is sleeved with a threaded connecting sleeve 12, the rear side of the threaded connecting sleeve 12 is in threaded connection with the front side of a pressing guide sleeve 901 of the connecting sleeve cap 9, a guide rod 13 is slidably connected in the through holes 1102, the rear end of the guide rod 13 is in contact with the front end of the pressing rod 10, the specific effect is achieved, the holding rod 11 is fixed on the front side wall of the connecting sleeve cap 9 through the fixing sleeve 1101 and the threaded connecting sleeve 12, the convenience in taking of the connecting sleeve cap 9 is improved, the limiting ring 1103 corresponding to the through holes 1102 is connected with the pressing guide sleeve 901 through the threaded connecting sleeve 12, then the detachable guide rod 13 is inserted into the through holes 1102, and the guiding rod 13 is matched with the pressing rod 10 to start the thrower, so that the safety of the thrower is improved and the operation is reduced.

The bottom of the launching connector 15 is provided with a connecting pipe 1502, the bottom of the connecting pipe 1502 is inserted on the air outlet 401 at the top of the air supply bottle 4, two fixing holes 1501 are symmetrically formed in the middle of the front side wall and the rear side wall of the launching connector 15, the fixing holes 1501 correspond to the fixing insertion holes 903 formed in the connecting sleeve cap 9, the fixing insertion pins 14 are inserted in the fixing holes 1501 and the fixing insertion holes 903, a clamping seat 16 is placed in the end face of the top of the launching connector 15, the inner side wall of the top of the launching connector 15 is in threaded connection with the outer side wall of the bottom of the clamping nut 17, the bottom of the clamping nut 17 is clamped at the top of the clamping seat 16, the bottom of the launching pipe 18 is inserted on the clamping seat 16 and penetrates through the clamping nut 17, specific effects are achieved, the launching connector 15 is inserted on the top of the connecting sleeve cap 9, the fixing holes 1501 are aligned with the fixing insertion holes 903, then the fixing insertion pins 14 are used for fixing connection, the connecting pipe 1502 at the bottom of the launching connector 15 is firmly connected with the air outlet 401 at the top of the air supply bottle 4, gas leakage is prevented, then the launching pipe 18 is inserted on the launching pipe 18, the launching connector, the launcher 18, the launcher 18 is convenient for improving the throwing and the throwing capability of throwing and the throwing of various objects.

The specific use mode and function of the embodiment are as follows: in the invention, firstly, an air supply bottle 4 is placed in a gas bottle bracket 3, then a connecting sleeve cap 9 is placed at the top of the gas bottle bracket 3, the connecting sleeve cap 9 is connected with the gas bottle bracket 3 through a locking mechanism formed by a fixing piece 902 and a locking piece 302, the convenience of replacing the air supply bottle 4 is improved, a holding rod 11 is fixed on the front side wall of the connecting sleeve cap 9 through a fixing sleeve 1101 and a threaded connecting sleeve 12, so that the convenience of taking the connecting sleeve cap 9 is improved, a limiting ring 1103 corresponding to a perforation 1102 is connected with a pressing guide sleeve 901 through the threaded connecting sleeve 12, then a detachable guide rod 13 is inserted into the perforation 1102, then a transmitting connector 15 is inserted into the top of the connecting sleeve cap 9, a fixing hole 1501 is aligned with a fixing jack 903, and then the fixing plug 14 is used for fixing connection, so that a connecting pipe 1502 at the bottom of the transmitting connector 15 is firmly connected with an air outlet 401 at the top of the air supply bottle 4, prevent gas leakage, then through pegging graft the launching tube 18 on the tight seat 16 of the clamp at the top of launching connector 15, then rotate the clamp nut 17, the clamp nut 17 forces the tight seat 16 of clamp to clip the launching tube 18 bottom, thereby improve the connection fastness of launching tube 18, so as to improve the convenience when multiple launching tubes 18 of the thrower are exchanged and used, drive the control screw 801 to rotate through the driving motor 8, so as to control the sliding seat 6 to slide through the control screw 801, thereby adjust the inclination angle of the gas cylinder support 3 through the sliding seat 6 and the connecting rod 7, so as to control the throwing distance of the thrower, then press the guide rod 13, when the press rod 10 is pressed by the press rod 13, the press rod 10 will push the block 5 to slide, make high-pressure gas spout from the gas supply bottle 4, thereby can start the thrower through the cooperation of guide rod 13 and press rod 10, preventing the occurrence of a false emission condition.

Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. A rescue tossing device for sea comprising: place base (1), it is provided with two anti-skidding heelpiece (2) to place base (1) bottom symmetry, the cylindrical protruding grafting in anti-skidding heelpiece (2) top is placing base (1) bottom terminal surface, sliding connection has sliding seat (6) in placing base (1) top terminal surface, install driving motor (8) in placing base (1) rear side wall, it has gas cylinder support (3) to place base (1) left side top is articulated, gas supply bottle (4) have been placed in gas cylinder support (3), gas cylinder support (3) top is connected with connecting sleeve cap (9), connecting sleeve cap (9) outer wall front side is connected with takes and holds pole (11), it has transmitting connector (15) to peg graft at connecting sleeve cap (9) top, transmitting connector (15) top threaded connection has clamping nut (17), it has transmitting tube (18) to peg graft in clamping nut (17).

2. A rescue throwing apparatus at sea as claimed in claim 1, wherein: the rear side of the top end face of the placing base (1) is provided with a long H-shaped groove (101), the H-shaped groove (101) is connected with a sliding seat (6) in a sliding mode, a control screw (801) connected with the front end of a driving shaft of a driving motor (8) is rotatably connected to the middle of the H-shaped groove (101), the sliding seat (6) is connected to the control screw (801) in a threaded mode, and the front side of the top end face of the placing base (1) is provided with a hinged seat (102).

3. A rescue throwing apparatus at sea as claimed in claim 1, wherein: the middle of the bottom and the rear side wall of the gas cylinder support (3) is provided with a hinge joint (301), the hinge joint (301) at the bottom of the gas cylinder support (3) is connected to a hinge seat (102) for placing the base (1), the hinge joint (301) at the middle of the rear side wall of the gas cylinder support (3) is connected with a sliding seat (6) through a connecting rod (7), and the outer side wall of the top of the gas cylinder support (3) is provided with four locking fasteners (302) in an annular array manner.

4. A rescue throwing apparatus at sea as claimed in claim 1, wherein: the top of air supply bottle (4) is provided with the joint, and the top that connects is provided with gas outlet (401), and the front side that connects is provided with presses down mouthful (402), and the inside sliding connection that connects has shutoff piece (5), and shutoff piece (5) are stifled between gas outlet (401) and air supply bottle (4) intercommunicating pore, and shutoff piece (5) rear side is provided with shutoff spring (501).

5. A rescue throwing apparatus at sea as claimed in claim 1, wherein: the connecting sleeve cap (9) is in a bullet shape, four fixing pieces (902) are arranged on the outer side wall of the bottom of the connecting sleeve cap (9) in an annular array mode, the fixing pieces (902) and a locking piece (302) on the outer side of the top of the gas cylinder support (3) form a finished locking mechanism, a pressing guide sleeve (901) is arranged in the middle of the front side wall of the connecting sleeve cap (9), the pressing guide sleeve (901) is in a hollow shape, a pressing rod (10) is connected to the inside of the pressing guide sleeve (901) in a sliding mode, a pressing reset spring (1001) is sleeved on the outer wall of the rear side of the pressing rod (10), the rear end of the pressing rod (10) is in contact with the front end of a plugging block (5), and a communicated fixed insertion hole (903) is formed in the tops of the front side wall and the rear side wall of the connecting sleeve cap (9).

6. A rescue throwing apparatus as claimed in claim 1, wherein: the utility model discloses a take rear side wall top of holding pole (11) is provided with fixed cover (1101), fixed cover (1101) cup joint in connecting sleeve cap (9) lateral wall middle department, perforation (1102) have been seted up to lateral wall bottom around holding pole (11), be provided with spacing ring (1103) on the pole (11) rear side wall that perforation (1102) correspond, threaded connection cover (12) have been cup jointed on spacing ring (1103) outside portion, threaded connection cover (12) rear side threaded connection presses guide pin bushing (901) front side in connecting sleeve cap (9), sliding connection has guide arm (13) in perforation (1102), guide arm (13) rear end and the front end contact of pressing pole (10).

7. A rescue throwing apparatus at sea as claimed in claim 1, wherein: the bottom of the emission joint (15) is provided with a connecting pipe (1502), the bottom of the connecting pipe (1502) is inserted into an air outlet (401) at the top of an air supply bottle (4), two fixing holes (1501) are symmetrically formed in the middle of the front side wall and the rear side wall of the emission joint (15), the fixing holes (1501) correspond to fixing jacks (903) formed in the connecting sleeve caps (9), and fixing bolts (14) are inserted into the fixing holes (1501) and the fixing jacks (903).

8. A rescue throwing apparatus at sea as claimed in claim 1, wherein: tight seat (16) of clamp has been placed in emission joint (15) top terminal surface, emission joint (15) top inside wall and clamp nut (17) bottom lateral wall threaded connection, clamp nut (17) bottom joint is at tight seat (16) top of clamp, and emission pipe (18) bottom is pegged graft on tight seat (16) of clamp and is passed clamp nut (17).