Emergency fire rescue life raft

Abstract

The application relates to the technical field of emergency fire rescue rafts, and discloses an emergency fire rescue raft which comprises a rectangular frame floating box, a floating air bag is arranged in the rectangular frame floating box, two fixed frame plates are fixedly arranged at the two ends of the rectangular frame floating box, four counterweight water tanks capable of being lifted and adjusted are arranged in the four fixed frame plates, water inlets and outlets are formed in the bottoms of the four counterweight water tanks, lids matched with the water inlets and outlets and capable of sealing the water inlets and outlets are arranged in the four counterweight water tanks, square rods are fixedly arranged on the tops of the lids, and the four square rods are movably extended to the tops of the counterweight water tanks. The emergency fire rescue raft has the counterweight water tank structure capable of controlling water quantity, the counterweight water tank structure can effectively adjust different counterweight weights according to actual use requirements, and the performance can meet the use requirements of the emergency fire rescue raft.

Description

Technical Field

[0001] This invention belongs to the field of emergency fire rescue raft technology, specifically an emergency fire rescue raft. Background Technology

[0002] Emergency fire rescue rafts are key lifesaving equipment designed to respond to emergencies such as sudden maritime fires or ship sinkings. They are typically used in emergencies such as shipwrecks and aircraft crashes to ensure that people can wait for rescue on the water. They have good buoyancy and stability. They are designed with multiple airbags to increase load-bearing capacity and maintain buoyancy. Emergency fire rescue rafts usually have a counterweight water tank at the bottom, mainly to improve the stability and wind resistance of the raft. The counterweight helps the raft maintain a lower posture in the water, so that it is not easy to capsize even in wind and waves.

[0003] However, the water in the counterweight tank at the bottom of some current life rafts is uncontrollable. When the emergency fire rescue raft is placed in the water, the water will directly fill the counterweight tank. However, when there are many people on the emergency fire rescue raft, there is no need for the counterweight tank to add extra weight. In this case, the added weight of the counterweight tank will affect the drifting speed of the life raft. Therefore, improvements are needed to address the above problems. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: an emergency fire rescue raft, comprising a rectangular frame pontoon, wherein a floating airbag is installed inside the rectangular frame pontoon, and two fixed frame plates are fixedly installed at both ends of the rectangular frame pontoon. Each of the four fixed frame plates has an adjustable counterweight water tank installed inside, and each of the four counterweight water tanks has an inlet and outlet at the bottom. Each of the four counterweight water tanks has a cover plate inside that matches and seals the inlet and outlet. A square rod is fixedly installed on the top of each cover plate, and the four square rods extend movably through to the outside of the top of the counterweight water tank.

[0005] Preferably, each of the four counterweight water tanks has a vertical groove in the middle of one side, and a toothed plate is fixedly installed inside the vertical groove.

[0006] Preferably, both ends of the rectangular frame pontoon are provided with concave arc grooves, and an adjusting shaft is rotatably installed inside each of the two concave arc grooves. Gears are fixedly installed on the surfaces of the two adjusting shafts. The gears are meshed with the gear plate through vertical grooves. One end of each adjusting shaft extends movably to one side of the rectangular frame pontoon and is fixedly installed with a bevel gear. A drive shaft is rotatably installed on one side of the rectangular frame pontoon. Two bevel gears are symmetrically fixedly installed at both ends of the drive shaft, and the two bevel gears are respectively meshed with the bevel gear. A worm gear is fixedly installed in the middle of the drive shaft.

[0007] Preferably, a base plate is fixedly installed on one side of the rectangular frame pontoon, and a worm gear tube is rotatably installed on the top of the base plate. The worm gear tube meshes with a worm wheel. A rotating shaft is movably inserted into the top of the worm gear tube. Two transmission vertical grooves are symmetrically opened in the top of the inside of the worm gear tube. Two insert blocks are symmetrically fixedly installed on the lower part of the surface of the rotating shaft. The two insert blocks are movably engaged in the inside of the two transmission vertical grooves. A disc is fixedly installed on the top of the rotating shaft, and a rotating handle is rotatably connected to the edge of the top of the disc.

[0008] Preferably, a worm gear tube is movably sleeved on the upper part of the rotating shaft, and two T-shaped adjustment grooves are symmetrically opened at the bottom inside the worm gear tube. Two insert blocks are symmetrically fixedly installed on the upper part of the rotating shaft surface to match the T-shaped adjustment grooves.

[0009] Preferably, bearings are installed on the upper and lower parts of the surface of the worm tube II. Connecting plates are symmetrically fixed between the outer rings of the two bearings. A transmission shaft II is rotatably installed between the two connecting plates. A worm wheel II that meshes with the worm tube II is fixedly installed in the middle of the transmission shaft II. The two sides of the transmission shaft II are rotatably installed between the tops of the two counterweight water tanks on the same side of the two ends of the rectangular frame float box. A bevel gear III is fixedly installed at both ends of the transmission shaft II.

[0010] Preferably, each of the four counterweight water tanks has a vertical block fixedly installed on its top. Each vertical block has a square through groove on its upper part. A square insert rod is movably inserted between the two square through grooves at the same end of the rectangular frame float. One end of the square insert rod has a threaded hole. A threaded rod is threaded into the threaded hole. One side of the threaded rod is rotatably connected to the top of the adjacent counterweight water tank. A bevel gear four is fixedly installed at one end of each of the two threaded rods. The two bevel gear fours are respectively meshed with two bevel gear threes.

[0011] Preferably, a fixing block is fixedly installed at the bottom of each of the two square rods, a rhomboid quadrilateral extrusion block is fixedly installed at the lower part of one side of each fixing block, a transmission block is fixedly installed at the top of each of the four square rods, and a slanted slot matching the rhomboid quadrilateral extrusion block is opened in the middle of each of the four transmission blocks, and the rhomboid quadrilateral extrusion block is movably inserted into the inside of the slanted slot.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This emergency fire rescue raft has a counterweight water tank structure with controllable water volume. This counterweight water tank structure can effectively adjust the weight of the counterweight according to the actual use needs, thereby effectively improving the performance of the rescue raft. At the same time, the counterweight water tank structure with controllable water volume can effectively ensure the stability of the rescue raft and the drifting speed through the lifting adjustment and automatic water intake and discharge operation of the counterweight. When it is necessary to adjust the counterweight water tank, insert the first insert into the inside of the transmission vertical groove, and then rotate the handle to rotate the disc, which in turn drives the rotating shaft to rotate. The rotation of the rotating shaft will drive the worm tube to rotate through the first insert and the transmission vertical groove. The rotation of the worm tube will drive the worm wheel to rotate, which will then drive the transmission shaft to rotate for adjustment. The rotation of drive shaft one drives two bevel gears two to rotate, the rotation of two bevel gears two to rotate, the rotation of two bevel gears one to rotate, the rotation of two bevel gears one to rotate, the rotation of two adjusting shafts to rotate, the rotation of two adjusting shafts to rotate the two gears on them, and finally the four gears rotate simultaneously. The rotation of the gears will drive the toothed plate to move, thereby allowing the four counterweight water tanks to move up or down synchronously inside the four fixed frame plates via ball bearings; As the counterweight tank is moved upward, it is removed from the water and its weight is reduced by discharging the water inside, while its buoyancy increases the buoyancy of the life raft. When the counterweight tank is lowered into the water, the weight is increased by injecting water into it, which effectively improves the stability of the life raft and prevents it from easily capsizing during use. The upward movement of the rotating shaft is caused by lifting the disc. This upward movement of the rotating shaft will cause the two insert blocks (1 and 2) to move upward as well. This will cause the two insert blocks (1) to move out of the two vertical transmission grooves and the two insert blocks (2) to move into the two T-shaped adjustment grooves. After the insert blocks (2) move to the upper part of the T-shaped adjustment grooves, the rotating disc will be rotated to make the rotating shaft rotate. This rotation of the rotating shaft will cause the two insert blocks (2) to rotate. The rotation of the two insert blocks (2) will engage with the upper part of the two T-shaped adjustment grooves, preventing the rotating shaft from moving downward automatically. Next, rotating the lever rotates the disc, which in turn rotates the rotating shaft. The rotation of the rotating shaft, through the two insert blocks and the two T-shaped adjusting slots, drives the worm tube to rotate. The rotation of the worm tube drives the worm gear to rotate, which in turn drives the transmission shaft to rotate. The rotation of the transmission shaft drives the two bevel gears to rotate. The rotation of the two bevel gears drives the two bevel gears to rotate, which in turn drives the two threaded rods to rotate. The rotation of the two threaded rods, through the threaded holes, causes the two square inserts to move horizontally through the square through slots. The horizontal movement of the two square inserts, through the fixing blocks at their bottoms, drives the rhomboid quadrilateral extrusion blocks to move horizontally. The movement of the rhomboid quadrilateral extrusion blocks, through the inclined slots, drives the transmission block to move upward. The upward movement of the transmission block drives the square rods to move upward. The upward movement of the square rods drives the cover plate to move upward and remove it from the top of the inlet and outlet. When the cover is removed from the top of the inlet and outlet, the upward movement of the four counterweight tanks allows the water inside to be discharged through the inlet and outlet, thus reducing the weight. When the cover is removed from the top of the inlet and outlet, and the four counterweight tanks move downward, external water will enter the counterweight tanks through the inlet and outlet. The weight is adjusted by varying the depth to which the counterweight tanks are inserted into the water; the deeper the insertion, the heavier the weight. Afterward, the cover is sealed again to ensure the effectiveness of the water storage in the counterweight tanks, thus ensuring the reliability of the counterweight. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a front view structural diagram of the emergency fire-fighting life raft of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of partial cross-section structure Figure 1 ; Figure 3 For the present invention Figure 2 A schematic diagram of a partial structure; Figure 4 For the present invention Figure 2 A side section diagram of the worm gear tube II; Figure 5 For the present invention Figure 1 Schematic diagram of partial cross-section structure Figure 2 ; Figure 6 For the present invention Figure 5 A schematic diagram of a partial structure; Figure 7 For the present invention Figure 1 A schematic diagram of a partial structure; Figure 8 For the present invention Figure 7 A schematic diagram of a partial structure; Figure 9 For the present invention Figure 1 Schematic diagram of partial cross-section structure Figure 3 ; Figure 10 For the present invention Figure 9 A schematic diagram of a partial structure; Figure 11 For the present invention Figure 7 A schematic diagram of a partial side profile; In the diagram: 1. Rectangular frame float; 2. Floating airbag; 3. Fixed frame plate; 4. Counterweight water tank; 5. Inlet and outlet; 6. Cover plate; 7. Square rod; 8. Vertical groove; 9. Toothed plate; 10. Concave arc groove; 11. Adjusting shaft; 12. Gear; 13. Bevel gear one; 14. Drive shaft one; 15. Bevel gear two; 16. Worm gear one; 17. Base plate; 18. Worm tube one; 19. Rotating shaft; 20. Drive vertical groove; 21. Insert block one; 22. 23. Rotating lever; 24. Worm gear tube II; 25. T-shaped adjusting groove; 26. Insert block II; 27. Connecting plate; 28. Drive shaft II; 29. ​​Worm gear II; 30. Bevel gear III; 31. Vertical block; 32. Square through groove; 33. Square insert rod; 34. Threaded hole; 35. Threaded rod; 36. Bevel gear IV; 37. Fixing block; 38. Rhomboid quadrilateral extrusion block; 39. Transmission block; 40. Angled slot; 41. Protective net. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0016] This emergency fire rescue raft features a controllable water volume counterweight tank structure. This structure allows for effective adjustment of the counterweight weight according to actual usage needs, thereby improving the raft's performance. Furthermore, the controllable water volume counterweight tank structure, through its lifting and automatic water inlet and outlet operations, effectively ensures the raft's stability and drifting speed. The structure is simple in design, easy to use, and reliably adjustable, meeting the performance requirements of emergency fire rescue rafts.

[0017] Example 1, by Figures 1 to 11The present invention includes a rectangular frame float 1, which has a hollow interior. A floating airbag 2 is installed inside the rectangular frame float 1. Two fixed frame plates 3 are fixedly installed at both ends of the rectangular frame float 1. Adjustable counterweight water tanks 4 are installed inside each of the four fixed frame plates 3. The four counterweight water tanks 4 can be adjusted up and down synchronously. Each of the four counterweight water tanks 4 has an inlet / outlet 5 at its bottom, and each of the four counterweight water tanks 4 has a cover plate 6 inside that matches and seals the inlet / outlet 5. A protective net 41 is fixedly installed at the bottom of each inlet / outlet 5 to prevent impurities from entering. A square rod 7 is fixedly installed at the top of each cover plate 6. The four square rods 7 extend movably through the top of the counterweight water tanks 4. The four square rods 7 can be adjusted up and down synchronously to effectively open and close the inlet / outlet 5, thereby facilitating the entry and exit of water.

[0018] In Example 2, based on Example 1, vertical grooves 8 are provided in the middle of one side of each of the four counterweight water tanks 4. A toothed plate 9 is fixedly installed inside each vertical groove 8. Rollers that contact several counterweight water tanks 4 are installed on the four sides inside the fixed frame plate 3. The arrangement of the rollers allows the counterweight water tanks 4 to move conveniently and stably. Both ends of the rectangular frame float box 1 are provided with concave arc grooves 10 that communicate with the inside of the fixed frame plate 3. Adjusting shafts 11 are rotatably installed inside each of the two concave arc grooves 10. Gears 12 are fixedly installed on the surface of each of the two adjusting shafts 11. The gears 12 are meshed with the toothed plate 9 through the vertical grooves 8. One end of each of the two adjusting shafts 11 extends movably to the outside of one side of the rectangular frame float box 1 and is fixedly installed with a bevel gear 13, thereby effectively adjusting the height of the counterweight water tanks 4.

[0019] A drive shaft 14 is rotatably mounted on one side of the rectangular frame float box 1. Two bevel gears 15 are symmetrically fixed at both ends of the drive shaft 14. The two bevel gears 15 are respectively meshed with bevel gear 13. A worm gear 16 is fixedly mounted in the middle of the drive shaft 14, so that the four counterweight water tanks 4 can be effectively adjusted synchronously.

[0020] Specifically, the rotation of the transmission shaft 14 drives the two bevel gears 15 to rotate, the rotation of the two bevel gears 15 drives the two bevel gears 13 to rotate, the rotation of the two bevel gears 13 drives the two adjusting shafts 11 to rotate, and the rotation of the two adjusting shafts 11 drives the two gears 12 on them to rotate, ultimately causing all four gears 12 to rotate simultaneously. The rotation of gear 12 will drive the toothed plate 9 to move, thereby causing the four counterweight water tanks 4 to move up or down synchronously inside the four fixed frame plates 3 via ball bearings; As the counterweight tank 4 moves upward, it will be removed from the water and its weight will be reduced by discharging the water inside it, while its buoyancy will increase the buoyancy of the life raft. When the counterweight tank 4 is lowered into the water, it increases in weight by injecting water into it, thereby effectively improving the stability of the life raft and preventing it from easily capsizing during use.

[0021] A base plate 17 is fixedly installed on one side of the rectangular frame float box 1. A worm gear tube 18 is rotatably installed on the top of the base plate 17. The worm gear tube 18 is meshed with a worm wheel 16. The middle part of the worm gear tube 18 is a circular hollow structure. A rotating shaft 19 is movably inserted into the top of the worm gear tube 18. Two transmission vertical grooves 20 are symmetrically opened in the top of the inside of the worm gear tube 18. Insert blocks 21 are symmetrically fixedly installed on the lower part of the surface of the rotating shaft 19. The two insert blocks 21 are movably engaged in the two transmission vertical grooves 20 respectively. 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, so that it can be effectively adjusted.

[0022] Specifically, when it is necessary to adjust the counterweight water tank 4, insert the insert block 21 into the transmission vertical groove 20, and then rotate the handle 23 to rotate the disc 22, which in turn drives the rotating shaft 19 to rotate. The rotation of the rotating shaft 19, through the insert block 21 and the transmission vertical groove 20, will drive the worm tube 18 to rotate. The rotation of the worm tube 18 will drive the worm wheel 16 to rotate and adjust the transmission shaft 14.

[0023] In Example 3, based on Example 2, a worm gear tube 24 is movably sleeved on the upper part of the rotating shaft 19. Two T-shaped adjustment grooves 25 are symmetrically opened at the bottom inside the worm gear tube 24. Two insert blocks 26 matching the T-shaped adjustment grooves 25 are symmetrically fixedly installed on the upper part of the surface of the rotating shaft 19. Bearings are installed on the upper and lower parts of the surface of the worm gear tube 24. Connecting plates 27 are symmetrically fixedly installed 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 meshing with the worm gear 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 two ends of the rectangular frame float box 1. Bevel gears 30 are fixedly installed at both ends of the transmission shaft 28.

[0024] Each of the four counterweight water tanks 4 has a vertical block 31 fixedly installed on its top. Each vertical block 31 has a square through slot 32 on its upper part. A square insert rod 33 is movably inserted between the two square through slots 32 at the same end of the rectangular frame float 1. One end of the square insert rod 33 has a threaded hole 34, and a threaded rod 35 is threaded into the threaded hole 34. One side of the threaded rod 35 is rotatably connected to the top of its adjacent counterweight water tank 4. A bevel gear 4 36 is fixedly installed at one end of each of the two threaded rods 35. The two bevel gears 4 36 mesh with two bevel gears 30 respectively. It can effectively transmit power; 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, thereby effectively adjusting the four cover plates 6, so that the four counterweight water tanks 4 can effectively discharge and inflate through the inlet and outlet ports 5.

[0025] Specifically, before adjusting the height of the counterweight water tank 4, the cover plate 6 needs to be opened to open the inlet and outlet 5. The upward movement of the rotating shaft 19 is caused by lifting the disc 22. The upward movement of the rotating shaft 19 will cause the two insert blocks 1 21 and the two insert blocks 26 to move upward, thereby causing the two insert blocks 1 21 to move out of the two transmission vertical grooves 20, and at the same time causing the two insert blocks 26 to move into the two T-shaped adjustment grooves 25. When the second insert 26 moves to the upper part of the T-shaped adjustment groove 25, the rotating disc 22 drives the rotating shaft 19 to rotate. The rotation of the rotating shaft 19 will drive the two second inserts 26 to rotate. The rotation of the two second inserts 26 will lock into the upper part of the two T-shaped adjustment grooves 25, so that the rotating shaft 19 will not move down automatically. Next, rotating the lever 23 rotates the disc 22, which in turn drives the rotating shaft 19 to rotate. The rotation of the rotating shaft 19, through the two insert blocks 26 and the two T-shaped adjusting slots 25, drives the worm tube 24 to rotate. The rotation of the worm tube 24 drives the worm wheel 29, which in turn drives the transmission shaft 28 to rotate. The rotation of the transmission shaft 28 drives the two bevel gears 30 to rotate. The rotation of the two bevel gears 30 drives the two bevel gears 36, which in turn drives the two threaded rods 35 to rotate. The rotation of the two threaded rods 35 through the threaded hole 34 causes the two square insert rods 33 to move horizontally through the square through slot 32. The horizontal movement of the two square insert rods 33 causes the rhomboid quadrilateral extrusion block 38 to move horizontally through the fixing block 37 at its bottom. The movement of the rhomboid quadrilateral extrusion block 38 causes the transmission block 39 to move upward through the inclined slot 40. The upward movement of the transmission block 39 causes the square rod 7 to move upward. The upward movement of the square rod 7 causes the cover plate 6 to move upward and be removed from the top of the inlet / outlet 5. When the cover plate 6 is removed from the top of the inlet / outlet 5, the upward movement of the four counterweight water tanks 4 will cause the water inside to be discharged through the inlet / outlet 5, thereby reducing the counterweight. When the cover plate 6 is removed from the top of the inlet / outlet 5 and the four counterweight water tanks 4 are moved downward, external water will enter the interior of the counterweight water tanks 4 through the inlet / outlet 5. The different counterweights are adjusted by varying the depth to which the counterweight water tanks 4 are inserted into the water. The deeper the insertion, the heavier the counterweight. Afterward, the cover plate 6 is used to seal the inlet / outlet 5 again 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, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which 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 liftable and adjustable counterweight water tank (4) installed inside. 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) inside that matches 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 top of the counterweight water tank (4). Each of the four counterweight water tanks (4) has a vertical groove (8) in the middle of one side. Each of the vertical grooves (8) has a toothed plate (9) fixedly installed inside. The rectangular frame pontoon (1) has concave arc grooves (10) at both ends. Adjustment shafts (11) are rotatably installed inside the two concave arc grooves (10). Gears (12) are fixedly installed on the surfaces of the two adjustment shafts (11). The gears (12) are meshed with the toothed plate (9) through the vertical groove (8). One end of the two adjustment shafts (11) extends movably to the outside of one side of the rectangular frame pontoon (1) and is fixedly installed with bevel gear one (13). A drive shaft one (14) is rotatably installed on one side of the rectangular frame pontoon (1). Bevel gear two (15) is symmetrically fixedly installed at both ends of the drive shaft one (14). The two bevel gear two (15) mesh with bevel gear one (13) respectively. A worm gear one (16) is fixedly installed in the middle of the drive shaft one (14). A bottom plate (17) is fixedly installed on one side of the rectangular frame float box (1). A worm tube (18) is rotatably installed on the top of the bottom 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 inside 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 inside 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). 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 of the worm tube (24). Two insert blocks (26) matching the T-shaped adjustment grooves (25) are symmetrically fixedly installed on the upper part of the rotating shaft (19). Bearings are installed on the upper and lower parts of the worm tube (24). A connecting plate (27) is symmetrically fixedly installed 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) meshing 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). Both ends of the transmission shaft (28) are fixedly installed with bevel gears (30). The top of each counterweight water tank (4) is fixedly installed with a vertical block (31). The upper part of each vertical block (31) is provided with a square through groove (32). A square plug 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 plug 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 water 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).

2. The emergency fire-fighting life raft according to claim 1, 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).

3. The 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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