Emergency fire protection life raft

Abstract

The invention relates to the technical field of emergency fire protection life rafts, and discloses an emergency fire protection life raft which comprises a rectangular frame buoyancy tank, a floating air bag is installed in the rectangular frame buoyancy tank, two fixed frame plates are fixedly installed at the two ends of the rectangular frame buoyancy tank respectively, and balance weight water tanks capable of being adjusted in a lifting mode are installed in the four fixed frame plates respectively. Water inlets and outlets are formed in the bottoms of the four counterweight water tanks, cover plates matched with the water inlets and outlets and used for sealing the water inlets and outlets are arranged in the four counterweight water tanks, square rods are fixedly mounted at the tops of the cover plates, and the four square rods movably penetrate through and extend out of the tops of the counterweight water tanks; the emergency fire-fighting life raft is provided with the water-volume-controllable counterweight water tank structure, the water-volume-controllable counterweight water tank structure can effectively adjust different counterweight weights according to actual use requirements, and the performance of the emergency fire-fighting life raft can meet the use requirements of the emergency fire-fighting life raft.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of emergency fire rescue rafts, and particularly relates to an emergency fire rescue raft. BACKGROUND

[0002] The emergency fire rescue raft is a key lifesaving device designed for emergency situations such as sudden marine fires or shipwrecks, and is usually used in emergency situations such as shipwrecks and airplane water landings to ensure that personnel can wait for rescue on the water surface, has good buoyancy and stability, and is designed with multiple airbags to increase the carrying capacity and maintain the buoyancy.

[0003] However, the water in the bottom weight water tank of the current rescue raft is uncontrollable, and when the emergency fire rescue raft is placed in water, the water will directly fill the weight water tank, but when there are more people on the emergency fire rescue raft, the weight water tank does not need to increase the weight, so the weight added by the weight water tank will affect the drifting speed of the rescue raft, therefore, the above problems need to be improved. SUMMARY

[0004] To achieve the above purpose, the application provides the following technical scheme: an emergency fire rescue raft, comprising a rectangular frame floating box, a floating airbag is installed in the inside of the rectangular frame floating box, two fixed frame plates are fixedly installed at both ends of the rectangular frame floating box, four weight water tanks with adjustable lifting are installed in the inside of the four fixed frame plates, a water inlet and outlet is formed in the bottom of each of the four weight water tanks, and a cover plate matched with the water inlet and outlet and sealing the water inlet and outlet is arranged in the inside of each of the four weight water tanks, a square rod is fixedly installed on the top of each of the cover plates, and each of the four square rods is movably extended to the top of the weight water tank.

[0005] Preferably, a vertical recess is formed in the middle of one side of each of the four weight water tanks, and a tooth plate is fixedly installed in the inside of each of the vertical recesses.

[0006] Preferably, concave arc grooves are formed at both ends of the rectangular frame floating box, an adjusting shaft is rotatably installed in the inside of each of the two concave arc grooves, a gear wheel is fixedly installed on the surface of each of the two adjusting shafts, the gear wheel is connected with the tooth plate through the vertical recess, a bevel gear one is movably extended to one side of the rectangular frame floating box and fixedly installed at one end of each of the two adjusting shafts, a transmission shaft one is rotatably installed on one side of the rectangular frame floating box, a bevel gear two is fixedly installed at both ends of the transmission shaft one in a symmetrical manner, the two bevel gears two are connected with the bevel gear one respectively, and a worm wheel one is fixedly installed in the middle of the transmission shaft one.

[0007] Preferably, one side of the rectangular frame buoy is fixedly provided with a bottom plate, a worm pipe I is rotatably arranged on the top of the bottom plate, the worm pipe I is connected with a worm wheel I, a rotating shaft is movably inserted into the top of the worm pipe I, two transmission vertical grooves are symmetrically arranged in the inside of the worm pipe I, two insertion blocks I are symmetrically fixedly arranged on the lower part of the surface of the rotating shaft, the two insertion blocks I are movably clamped in the two transmission vertical grooves respectively, a disc is fixedly arranged on the top of the rotating shaft, and a rotating handle is rotatably arranged on the edge of the top of the disc.

[0008] Preferably, a worm pipe II is movably sleeved on the upper part of the rotating shaft, two T-shaped adjusting grooves are symmetrically arranged in the inside of the worm pipe II, and two insertion blocks II are symmetrically fixedly arranged on the upper part of the surface of the rotating shaft and matched with the T-shaped adjusting grooves.

[0009] Preferably, bearings are arranged on the upper part and the lower part of the surface of the worm pipe II, connecting plates are symmetrically fixedly arranged between the outer rings of the two bearings, a transmission shaft II is rotatably arranged between the two connecting plates, a worm wheel II is fixedly arranged on the middle part of the transmission shaft II and connected with the worm pipe II, the transmission shaft II is rotatably arranged between the top of the two counterweight water tanks on the same side of the two ends of the rectangular frame buoy, and bevel gears III are fixedly arranged on the two ends of the transmission shaft II.

[0010] Preferably, vertical blocks are fixedly arranged on the top of the four counterweight water tanks, square through grooves are arranged on the upper part of the vertical blocks, square insertion rods are movably inserted between the two square through grooves on the same end of the rectangular frame buoy, a threaded hole is arranged on one end of the square insertion rod, a threaded rod is screw-connected in the threaded hole, the threaded rod is rotatably connected with the top of the counterweight water tank adjacent to the threaded rod, bevel gears IV are fixedly arranged on the one ends of the two threaded rods, and the two bevel gears IV are connected with the two bevel gears III respectively.

[0011] Preferably, fixed blocks are fixedly arranged on the bottom of the two square insertion rods, rhombic four-edge extrusion blocks are fixedly arranged on the lower part of the one side of the fixed blocks, transmission blocks are fixedly arranged on the top of the four square rods, inclined insertion grooves matched with the rhombic four-edge extrusion blocks are arranged on the middle part of the four transmission blocks, and the rhombic four-edge extrusion blocks are movably inserted into the inclined insertion grooves.

[0012] Compared with the prior art, the present application has the following beneficial effects: The emergency fire rescue raft has a controllable water amount counterweight water tank structure, which can effectively adjust the different counterweight weights according to the actual use requirements, thereby effectively improving the use performance of the rescue raft, and the controllable water amount counterweight water tank structure can automatically adjust the water amount through the lifting adjustment and the automatic feeding and discharging operation, thereby effectively ensuring the stability and the drifting speed of the rescue raft. When the counterweight water tank needs to be adjusted, the plug is inserted into the transmission vertical groove, and then the disc is rotated by rotating the handle bar to drive the rotating shaft to rotate. The rotation of the rotating shaft drives the worm tube I to rotate through the plug I and the transmission vertical groove. The rotation of the worm tube I drives the worm wheel I to rotate and drives the transmission shaft I to rotate and adjust; The rotation of the transmission shaft I drives the two bevel gears II to rotate, which drives the two bevel gears I to rotate. The rotation of the two bevel gears I drives the two adjusting shafts to rotate, which drives the two gears on them to rotate, finally making the four gears rotate simultaneously; The rotation of the gears drives the toothed plate to move, thereby making the four counterweight water tanks move up or down simultaneously inside the four fixed frame plates through the balls; When the counterweight water tank moves up and removes water, it reduces the weight and increases the buoyancy of the life raft; When the counterweight water tank moves down into the water and injects water into it, it increases the weight, effectively improving the stability of the life raft and preventing it from overturning during use; When the counterweight water tank moves up and removes water, it reduces the weight and increases the buoyancy of the life raft; Then the disc is rotated by rotating the handle bar to drive the rotating shaft to rotate. The rotation of the rotating shaft drives the worm tube II to rotate through the two plugs II and the two T-shaped adjustment grooves. The rotation of the worm tube II drives the worm wheel II to rotate and drives the transmission shaft II to rotate. The rotation of the transmission shaft II drives the two bevel gears III to rotate, which drives the two bevel gears IV to rotate and drives the two threaded rods to rotate. The rotation of the two threaded rods through the threaded holes makes the two square insertion rods move horizontally through the square through grooves. The horizontal movement of the two square insertion rods through the fixed blocks at the bottom drives the rhombus-shaped extrusion blocks to move horizontally. The movement of the rhombus-shaped extrusion blocks through the inclined insertion grooves drives the transmission blocks to move up, which drives the square rods to move up and the cover plates to move up and remove them from the top of the water inlet and outlet; When the cover is removed from the top of the water inlet and outlet, the upward movement of the four water tanks will cause the water inside to be discharged through the water inlet and outlet, thereby reducing the weight; when the cover is removed from the top of the water inlet and outlet, and the four water tanks are moved downward, water from the outside will enter the inside of the water tanks through the water inlet and outlet, and by adjusting the depth of the water tanks inserted into the water, different weights can be adjusted, the deeper the insertion depth, the heavier the weight, and then the cover is used to cover the water inlet and outlet to ensure the effectiveness of the water storage in the water tanks, thereby ensuring the reliability of the weight. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the application, and do not limit the application.

[0014] In the drawings: Figure 1 is a front view of the emergency fire rescue raft of the present application; Figure 2 is a front view of the emergency fire rescue raft of the present application; Figure 1 Figure 1 is a front view of the emergency fire rescue raft of the present application; Figure 3 is a front view of the emergency fire rescue raft of the present application; Figure 2 is a front view of the emergency fire rescue raft of the present application; Figure 4 Figure 2 is a front view of the emergency fire rescue raft of the present application; Figure 5 is a front view of the emergency fire rescue raft of the present application; Figure 1 Figure 2 is a front view of the emergency fire rescue raft of the present application; Figure 6 is a front view of the emergency fire rescue raft of the present application; Figure 5 is a front view of the emergency fire rescue raft of the present application; Figure 7 Figure 1 is a front view of the emergency fire rescue raft of the present application; Figure 8 is a front view of the emergency fire rescue raft of the present application; Figure 7 is a front view of the emergency fire rescue raft of the present application; Figure 9 Figure 1 is a front view of the emergency fire rescue raft of the present application; Figure 3 is a front view of the emergency fire rescue raft of the present application; Figure 10 Figure 9 is a front view of the emergency fire rescue raft of the present application; Figure 11 is a front view of the emergency fire rescue raft of the present application; Figure 7 ​​​​​​​In the figure: 1, rectangular frame buoy; 2, floating air bag; 3, fixed frame plate; 4, counterweight water tank; 5, water inlet and outlet; 6, cover plate; 7, square rod; 8, vertical recess; 9, toothed plate; 10, concave arc groove; 11, adjusting shaft; 12, gear; 13, bevel gear one; 14, transmission shaft one; 15, bevel gear two; 16, worm one; 17, bottom plate; 18, worm pipe one; 19, rotating shaft; 20, transmission vertical recess; 21, plug one; 22, disc; 23, rotating handle; 24, worm pipe two; 25, T-shaped adjusting groove; 26, plug two; 27, connecting plate; 28, transmission shaft two; 29, worm two; 30, bevel gear three; 31, vertical block; 32, square through groove; 33, square insertion rod; 34, threaded hole; 35, threaded rod; 36, bevel gear four; 37, fixed block; 38, diamond-shaped four-edge extrusion block; 39, transmission block; 40, inclined slot; 41, protective net. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0016] The emergency fire rescue raft has a controllable water amount counterweight water tank structure, which can effectively adjust different counterweight weights according to actual use requirements, thereby effectively improving the use performance of the rescue raft. Meanwhile, the controllable water amount counterweight water tank structure is adjusted by lifting and is automatically filled and drained with water, thereby effectively ensuring the stability and drifting speed of the rescue raft. The controllable water amount counterweight water tank structure is simple in design, convenient to use, stable and reliable in adjustment, and has the performance to meet the use requirements of the emergency fire rescue raft.

[0017] Embodiment one, by Figures 1 to 11The utility model provides a rectangular frame buoyancy tank 1 is given, the inside of rectangular frame buoyancy tank 1 is hollow structure, the inside of rectangular frame buoyancy tank 1 is installed with floating air bag 2, both ends of rectangular frame buoyancy tank 1 are fixedly installed with two fixed frame board 3, the inside of four fixed frame board 3 is installed with the counterweight water tank 4 of liftable adjustment, four counterweight water tank 4 can synchronous lift adjustment, the bottom of four counterweight water tank 4 is all set up and goes in and out water gap 5, and the inside of four counterweight water tank 4 is equipped with the cover plate 6 that is matched with in and out water gap 5 and seals in and out water gap 5, the bottom of in and out water gap 5 is fixedly installed with the protective net 41 for avoiding impurity to enter, the top of cover plate 6 is fixedly installed with square rod 7, four square rods 7 all movably extend to the top outside of counterweight water tank 4, four square rods 7 can synchronous lift adjustment and effectively open and close in and out water gap 5, to the benefit of the entry and discharge of water.

[0018] In the embodiment two, on the basis of the embodiment one, the middle of four counterweight water tank 4 one side is all set up vertical recess 8, the inside of vertical recess 8 is fixedly installed with the toothed plate 9, the four sides in fixed frame board 3 are installed with the ball that contacts with several counterweight water tank 4, through the setting of ball, make counterweight water tank 4 can conveniently and stably move, the both ends of rectangular frame buoyancy tank 1 are all set up and go in with the recessed groove 10 of fixed frame board 3 intercommunication, the inside of two recessed groove 10 is rotatably installed with the adjusting shaft 11, the surface of two adjusting shaft 11 is fixedly installed with the gear 12, the gear 12 is connected with the toothed plate 9 through vertical recess 8 and is engaged, the one end of two adjusting shaft 11 is movably extended to one side outside of rectangular frame buoyancy tank 1 and is fixedly installed with bevel gear one 13, to effectively lift adjustment of counterweight water tank 4.

[0019] The one side of rectangular frame buoyancy tank 1 is rotatably installed with transmission shaft one 14, the both ends of transmission shaft one 14 are fixedly installed with bevel gear two 15, two bevel gear two 15 are engaged with bevel gear one 13 respectively, and the middle of transmission shaft one 14 is fixedly installed with worm gear one 16, to effectively synchronous adjustment of four counterweight water tank 4.

[0020] Specifically, the rotation of transmission shaft one 14 drives the rotation of two bevel gear two 15, the rotation of two bevel gear two 15 drives the rotation of two bevel gear one 13, the rotation of two bevel gear one 13 drives the rotation of two adjusting shaft 11, the rotation of two adjusting shaft 11 drives the rotation of two gears 12 on it, finally makes four gears 12 rotate at the same time. The rotation of gear 12 drives the transmission and movement of toothed plate 9, so that four counterweight water tank 4 moves up or down in the inside of four fixed frame board 3 synchronously through the ball for adjustment. When the counterweight water tank 4 moves up, it removes from the water and reduces the weight by draining the water inside, and at the same time, it increases the buoyancy of the life raft through its buoyancy. When the weight water tank 4 is lowered into the water and the weight is increased by injecting water into its interior, the stability of the life raft is effectively improved so that the life raft will not easily overturn in use.

[0021] The bottom plate 17 is fixedly installed on one side of the rectangular frame buoyancy tank 1, the worm pipe one 18 is rotatably installed on the top of the bottom plate 17, the worm pipe one 18 is meshed and connected with the worm gear one 16, the middle part of the worm pipe one 18 is a circular hollow structure, the rotating shaft 19 is movably inserted into the top of the worm pipe one 18, two transmission vertical recesses 20 are symmetrically formed in the top of the inside of the worm pipe one 18, the plug block one 21 is symmetrically fixedly installed on the lower part of the surface of the rotating shaft 19, the two plug block one 21 are movably clamped in the inside of the two transmission vertical recesses 20 respectively, the disc 22 is fixedly installed on the top of the rotating shaft 19, the rotating handle 23 is rotatably connected with the edge of the top of the disc 22, so that the adjustment can be effectively carried out.

[0022] Specifically, when the weight water tank 4 needs to be adjusted, the plug block one 21 is inserted into the inside of the transmission vertical recess 20, then the disc 22 is rotated through the rotating handle 23 to drive the rotating shaft 19 to rotate, the rotating of the rotating shaft 19 drives the worm pipe one 18 to rotate through the plug block one 21 and the transmission vertical recess 20, the rotating of the worm pipe one 18 drives the worm gear one 16 to rotate to drive the transmission shaft one 14 to rotate and adjust.

[0023] In example three, the worm pipe two 24 is movably sleeved on the upper part of the rotating shaft 19, the T-shaped adjusting groove 25 is symmetrically formed in the inside of the bottom of the worm pipe two 24, the plug block two 26 matched with the T-shaped adjusting groove 25 is symmetrically fixedly installed on the upper part of the surface of the rotating shaft 19; the bearing is installed on the upper part and the lower part of the surface of the worm pipe two 24, the connecting plate 27 is symmetrically fixedly installed between the outer rings of the two bearings, the transmission shaft two 28 is rotatably installed between the two connecting plates 27, the worm gear two 29 meshed and connected with the worm pipe two 24 is fixedly installed on the middle part of the transmission shaft two 28, the bevel gear three 30 is fixedly installed on the two ends of the transmission shaft two 28, and the transmission shaft two 28 is rotatably installed between the top of the two weight water tanks 4 on the same side of the two ends of the rectangular frame buoyancy tank 1.

[0024] The top of each of the four counterweight water tanks 4 is fixedly provided with a vertical block 31, a square through slot 32 is formed in the upper portion of each vertical block 31, square insertion rods 33 are movably inserted between the interiors of two square through slots 32 at the same end of the rectangular frame floating tank 1, a threaded hole 34 is formed in one end of each square insertion rod 33, threaded rods 35 are threadedly connected in the interiors of the threaded holes 34, one side of each threaded rod 35 is rotatably connected to the top of the counterweight water tank 4 adjacent thereto, and one end of each of the two threaded rods 35 is fixedly provided with a bevel gear four 36, the two bevel gear fours 36 are meshingly connected with the two bevel gear threes 30, so that effective transmission can be achieved; fixed blocks 37 are fixedly provided at the bottoms of the two square insertion rods 33, rhombic four-edge extrusion blocks 38 are fixedly provided at the lower portions of one side of each fixed block 37, transmission blocks 39 are fixedly provided at the tops of the four square rods 7, inclined insertion grooves 40 matching the rhombic four-edge extrusion blocks 38 are formed in the middle portions of the four transmission blocks 39, and the rhombic four-edge extrusion blocks 38 are movably inserted in the interiors of the inclined insertion grooves 40, so that the four cover plates 6 can be effectively adjusted, and the four counterweight water tanks 4 can be effectively drained and filled through the water inlet and outlet 5.

[0025] Specifically, before the counterweight water tank 4 is adjusted in height, the cover plate 6 needs to be opened to open the water inlet and outlet 5. The circular disc 22 is lifted to drive the rotating shaft 19 to move upward, the upward movement of the rotating shaft 19 drives the two insertion blocks one 21 and the two insertion blocks two 26 to move upward, so that the two insertion blocks one 21 are moved out of the interiors of the two transmission vertical recesses 20, and the two insertion blocks two 26 are moved into the interiors of the two T-shaped adjustment grooves 25; When the insertion blocks two 26 are moved to the upper portions of the T-shaped adjustment grooves 25, the circular disc 22 is rotated to drive the rotating shaft 19 to rotate, the rotation of the rotating shaft 19 drives the two insertion blocks two 26 to rotate, and the rotation of the two insertion blocks two 26 causes them to be clamped into the upper portions of the two T-shaped adjustment grooves 25, so that the rotating shaft 19 cannot automatically move downward; Then the disc 22 is rotated by rotating the handle 23 to drive the rotating shaft 19 to rotate, the rotating shaft 19 drives the worm pipe 24 to rotate through the two insertion blocks 26 and the two T-shaped adjusting grooves 25, the worm pipe 24 drives the transmission shaft 28 to rotate through the transmission of the worm gear 29, the transmission shaft 28 drives the two bevel gears 30 to rotate, the two bevel gears 30 drive the two threaded rods 35 to rotate through the transmission of the two bevel gears 36, the two threaded rods 35 drive the two square insertion rods 33 to move horizontally through the threaded holes 34 and the square through grooves 32, the two square insertion rods 33 drive the rhombus quadrilateral extrusion block 38 to move horizontally through the fixed blocks 37 at the bottom of the two square insertion rods 33, the rhombus quadrilateral extrusion block 38 drives the transmission block 39 to move upwards through the inclined insertion grooves 40, the transmission block 39 drives the square rod 7 to move upwards, and the square rod 7 drives the cover plate 6 to move upwards and remove the cover plate 6 from the top of the water inlet and outlet 5. When the cover plate 6 is removed from the top of the water inlet and outlet 5, the upward movement of the four counterweight water tanks 4 drives the water in the counterweight water tanks 4 to be discharged through the water inlet and outlet 5, thereby reducing the counterweight; when the cover plate 6 is removed from the top of the water inlet and outlet 5, and the four counterweight water tanks 4 are moved downwards, the water outside the counterweight water tanks 4 enters the counterweight water tanks 4 through the water inlet and outlet 5, and the counterweight is adjusted by adjusting the depth of the counterweight water tanks 4 inserted into the water, the deeper the insertion depth, the heavier the counterweight, and then the cover plate 6 is used to cover the water inlet and outlet 5 to ensure the effectiveness of the water storage in the counterweight water tanks 4, thereby ensuring the reliability of the counterweight.

[0026] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An emergency fire rescue raft, comprising a rectangular frame buoy (1), wherein a floating airbag (2) is installed inside the rectangular frame buoy (1), characterized in that: The rectangular frame float (1) has two fixed frame plates (3) fixedly installed at both ends. Each of the four fixed frame plates (3) has a counterweight water tank (4) that can be raised and lowered. Each of the four counterweight water tanks (4) has an inlet and outlet (5) at the bottom. Each of the four counterweight water tanks (4) has a cover plate (6) that matches the inlet and outlet (5) and seals the inlet and outlet (5). Each of the cover plates (6) has a square rod (7) fixedly installed on the top. Each of the four square rods (7) extends movably through to the outside of the top of the counterweight water tank (4).

2. The emergency fire-fighting life raft according to claim 1, characterized in that: Each of the four counterweight water tanks (4) has a vertical groove (8) in the middle of one side, and a toothed plate (9) is fixedly installed inside the vertical groove (8).

3. The emergency fire-fighting life raft according to claim 3, characterized in that: The rectangular frame pontoon (1) has concave arc grooves (10) at both ends. An adjusting shaft (11) is rotatably installed inside the two concave arc grooves (10). A gear (12) is fixedly installed on the surface of the two adjusting shafts (11). The gear (12) is meshed with the toothed plate (9) through the vertical groove (8). One end of the two adjusting shafts (11) extends movably to the outside of one side of the rectangular frame pontoon (1) and is fixedly installed with a bevel gear (13).

4. An emergency fire-fighting life raft according to claim 3, characterized in that: A drive shaft (14) is rotatably mounted on one side of the rectangular frame pontoon (1). Two bevel gears (15) are symmetrically fixed at both ends of the drive shaft (14). The two bevel gears (15) mesh with the bevel gear (13) respectively, and a worm gear (16) is fixedly mounted in the middle of the drive shaft (14).

5. An emergency fire-fighting life raft according to claim 4, characterized in that: A base plate (17) is fixedly installed on one side of the rectangular frame float (1). A worm tube (18) is rotatably installed on the top of the base plate (17). The worm tube (18) meshes with the worm wheel (16). A rotating shaft (19) is movably inserted into the top of the worm tube (18). Two transmission vertical grooves (20) are symmetrically opened on the top of the worm tube (18). A plug block (21) is symmetrically fixedly installed on the lower part of the surface of the rotating shaft (19). The two plug blocks (21) are movably engaged in the interior of the two transmission vertical grooves (20). A disc (22) is fixedly installed on the top of the rotating shaft (19). A rotating handle (23) is rotatably connected to the edge of the top of the disc (22).

6. An emergency fire-fighting life raft according to claim 5, characterized in that: The upper part of the rotating shaft (19) is movably sleeved with a worm tube (24). Two T-shaped adjustment grooves (25) are symmetrically opened at the bottom inside the worm tube (24). Two insert blocks (26) that match the T-shaped adjustment grooves (25) are symmetrically fixedly installed on the upper part of the rotating shaft (19).

7. An emergency fire-fighting life raft according to claim 6, characterized in that: Bearings are installed on the upper and lower parts of the surface of the worm tube (24). A connecting plate (27) is symmetrically fixed between the outer rings of the two bearings. A transmission shaft (28) is rotatably installed between the two connecting plates (27). A worm wheel (29) that meshes with the worm tube (24) is fixedly installed in the middle of the transmission shaft (28). The two sides of the transmission shaft (28) are rotatably installed between the tops of the two counterweight water tanks (4) on the same side of the rectangular frame float box (1). A bevel gear (30) is fixedly installed at both ends of the transmission shaft (28).

8. An emergency fire-fighting life raft according to claim 7, characterized in that: The top of each of the four counterweight tanks (4) is fixedly equipped with a vertical block (31). The upper part of each vertical block (31) is provided with a square through groove (32). A square insert rod (33) is movably inserted between the two square through grooves (32) at the same end of the rectangular frame float (1). A threaded hole (34) is provided at one end of the square insert rod (33). A threaded rod (35) is threaded inside the threaded hole (34). One side of the threaded rod (35) is rotatably connected to the top of the adjacent counterweight tank (4). A bevel gear four (36) is fixedly installed at one end of each of the two threaded rods (35). The two bevel gear four (36) are respectively meshed with two bevel gear three (30).

9. An emergency fire-fighting life raft according to claim 8, characterized in that: The bottom of each of the two square rods (33) is fixedly installed with a fixing block (37), and the lower part of one side of the fixing block (37) is fixedly installed with a rhomboid quadrilateral extrusion block (38). The top of each of the four square rods (7) is fixedly installed with a transmission block (39). The middle of each of the four transmission blocks (39) is provided with a slanted slot (40) that matches the rhomboid quadrilateral extrusion block (38). The rhomboid quadrilateral extrusion block (38) is movably inserted into the inside of the slanted slot (40).

10. An emergency fire-fighting life raft according to claim 1, characterized in that: The bottom of each inlet and outlet (5) is fixedly equipped with a protective net (41).

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