Emergency fire-fighting and lifesaving equipment and method for easy adjustment thereof

Abstract

The application discloses a kind of emergency fire-fighting lifesaving equipment and method of convenient adjustment, belong to fire-fighting lifesaving equipment technical field, including life raft body, the ribbed plate is fixedly installed at the raft bottom of life raft body, the floating tire top of life raft body is fixedly installed with guide slide, at least two groups of balance adjusting mechanism are installed on life raft body, two groups of balance adjusting mechanism are all included buoyancy plate, guide seat is slidably connected in one end of buoyancy plate and moves along guide slide, nylon rope is fixed to the other end of buoyancy plate, balance counterweight bag is fixedly installed in the lower end of nylon rope, two groups of driving mechanisms are installed in the middle part of ribbed plate, for making two balance counterweight bags respectively rotate adjustment, the driving assembly is used to drive adjustment outer cylinder and adjustment inner cylinder respectively rotate adjustment, the present application has the technical effects of active adjustment counterweight circumferential position, compensate eccentric load, adapt to variable sea conditions, improve the redundancy of life raft anti-overturning.

Description

Technical Field

[0001] This invention belongs to the field of fire-fighting and life-saving equipment technology, and particularly relates to an easily adjustable emergency fire-fighting and life-saving device and method thereof. Background Technology

[0002] In public safety emergency scenarios such as urban waterborne firefighting, flood disaster relief, ship accident emergency response, and near-shore search and rescue, fire-fighting life rafts are core emergency equipment for the emergency evacuation and temporary floating of people in distress in waterways awaiting rescue. They are widely used in fire rescue, maritime emergency response, and water operation protection. In actual emergency rescue operations, life rafts often face complex and ever-changing aquatic environments after entering the water. They not only need to carry multiple people in distress, rescue equipment, and emergency supplies, but also need to withstand the complex external forces such as the impact of waves, water currents, and wind thrust. Therefore, the floating stability, self-balancing ability, and anti-capsulation capacity of life rafts directly determine the safety and success rate of water rescues.

[0003] The ballast structure of existing traditional fire rescue life rafts is mostly fixed, with ballast water bags, counterweights, and other balancing components all factory-installed. The position, torque, and center-of-gravity parameters of the counterweights cannot be adjusted after production. In actual rescue operations, life rafts are prone to uneven personnel distribution, one-sided stacking of supplies, and off-center installation of external rescue accessories, leading to eccentric loads and causing problems such as localized tilting and attitude deviation. Furthermore, in severe sea conditions such as high winds, waves, and strong currents, the fixed ballast layout cannot proactively adapt to the direction of wind and waves and the current situation. This makes the life raft susceptible to sideways drift, yaw, shallow draft on one side, and reduced anti-capsulation capabilities, increasing the risk of capsizing, water ingress, and loss of control. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides an easily adjustable emergency fire-fighting and life-saving device and method, which has the advantages of actively adjusting the circumferential position of the counterweight, compensating for eccentric loads, adapting to changing sea conditions, and improving the anti-capsulation redundancy of the life raft. It solves the problems of fixed counterweight position in the prior art, which makes it difficult to cope with uneven loading of personnel and materials, wind and wave impacts, and high leveling operation risks.

[0005] This invention is implemented as follows: a conveniently adjustable emergency fire-fighting and life-saving device includes a life raft body. A rib plate is fixedly installed at the bottom of the life raft body, and a guide rail is fixedly installed on the top of the float. At least two sets of balance adjustment mechanisms are installed on the life raft body. Each set of balance adjustment mechanisms includes a buoyancy plate, a guide seat slidably sleeved at one end of the buoyancy plate and moving along the guide rail, a nylon rope fixed to the other end of the buoyancy plate, and a balance weight bag fixedly installed at the lower end of the nylon rope. Two sets of drive mechanisms are installed in the middle of the rib plate to rotate and adjust the two balance weight bags respectively. Each drive mechanism includes an adjusting outer cylinder penetrating the middle of the rib plate and an adjusting inner cylinder penetrating the middle of the adjusting outer cylinder. Drive components are correspondingly assembled on the side walls of both the adjusting outer cylinder and the adjusting inner cylinder, and the drive components are used to drive the adjusting outer cylinder and the adjusting inner cylinder to rotate and adjust respectively.

[0006] In a preferred embodiment of the present invention, an annular groove is provided on the upper part of the guide seat, one end of the buoyancy plate is slidably sleeved on the annular groove, a universal ball is fixedly installed on the bottom of the guide seat, the universal ball rolls along the guide slide, a limiting groove is provided on both sides of the lower part of the guide seat, a limiting edge is fixed on the inner and outer edges of the guide slide, and the limiting edge and the limiting groove are matched and connected.

[0007] With this setup, the guide seat rolls within the guide slide using universal balls, and the limiting edge cooperates with the limiting slide groove to restrict the radial offset of the guide seat, ensuring that the guide seat moves only along the circumferential direction of the float; the buoyancy plate slides into the annular groove of the guide seat, and the buoyancy plate can change its circumferential position with the guide seat, while also allowing the buoyancy plate to swing slightly to adapt to the undulations of the water surface.

[0008] As a preferred embodiment of the present invention, the top of the balance weight bag has an opening, the bottom of the balance weight bag is fixed with a counterweight block, and an adjusting lever is sleeved on the nylon rope.

[0009] With this setup, water can be poured into the counterweight bag through its opening to serve as ballast, and the counterweight blocks provide basic counterweight. The adjusting lever rotates with the adjusting outer cylinder and adjusting inner cylinder, causing the nylon rope and the counterweight bag to swing in a circular motion, changing the circumferential position of the counterweight bag relative to the life raft body, thereby changing the ballast torque.

[0010] In a preferred embodiment of the present invention, the outer wall of the adjusting outer cylinder is connected to the middle of the rib plate through a bearing, a support plate is fixedly connected to the rib plate, the outer wall of the adjusting inner cylinder is connected to the end of the support plate through a bearing, the lower end of the adjusting inner cylinder extends to the bottom of the adjusting outer cylinder, the end of the adjusting lever corresponding to one of the balance weight bags is fixed to the bottom outer wall of the adjusting outer cylinder, and the end of the adjusting lever corresponding to the other balance weight bag is fixed to the bottom outer wall of the adjusting inner cylinder.

[0011] With this setup, the outer and inner cylinders are coaxially fitted together, allowing them to rotate independently without interfering with each other. The two sets of adjusting levers are connected one-to-one with the outer and inner cylinders, enabling the two sets of counterweight bags to swing independently in a circular motion. The circumferential angles of the two counterweight bags can be adjusted separately to achieve diverse counterweight distributions.

[0012] In a preferred embodiment of the present invention, the drive assembly includes a gear, a rotating cylinder connected to the bottom of the gear via a bearing, a rotating rod fixedly connected to the top of the gear, a positioning screw threaded through the rotating rod and the middle of the gear, and a handle fixed to the top side wall of the rotating rod. One rotating cylinder is fixed to a rib plate, and the other rotating cylinder is fixed to a support plate. The upper outer walls of both the adjusting outer cylinder and the adjusting inner cylinder are fitted with toothed rings, which mesh with the corresponding gears.

[0013] With this setup, turning the handle drives the rotating rod and gear to rotate. The gear meshes with the gear ring, causing the adjusting outer cylinder or adjusting inner cylinder to rotate, which in turn causes the adjusting swing rod to swing, thus achieving the adjustment of the circumferential position of the balance weight bag. The rotating cylinder provides rotational support for the gear, ensuring stable gear rotation.

[0014] As a preferred embodiment of the present invention, threaded grooves are provided on the top of both the rib plate and the support plate. When the adjustment position of the counterweight bag is fixed, the lower end of the positioning screw is screwed into the corresponding threaded groove.

[0015] After adjusting the position of the counterweight bag using this setting, tighten the positioning screw. The lower end of the screw is screwed into the threaded groove to lock the rotating rod and gear, preventing the gear from rotating under the impact of wind and waves, ensuring that the position of the counterweight bag remains fixed, and avoiding the offset of the counterweight torque.

[0016] As a preferred embodiment of the present invention, the two drive components are respectively covered with a first cover and a second cover, the bottom of the first cover is fixed to the rib plate, the bottom of the second cover is fixed to the support plate, and the upper ends of the two rotating rods pass through the outside of the first cover and the second cover.

[0017] This design protects transmission components such as gears and gear rings from seawater, waves, and debris, preventing them from corroding and jamming. The upper end of the rotating rod extends outside the cover, allowing operators to manually adjust it inside the raft.

[0018] A method for using an easily adjustable emergency fire-fighting and life-saving device, applicable to the aforementioned easily adjustable emergency fire-fighting and life-saving device, includes the following steps: S1. Deploy the life raft into the water. Based on the wind and wave conditions of the water to be rescued and the load distribution on the life raft, operate the drive mechanism to change the position of the balance adjustment mechanism relative to the life raft. S2. By adjusting its own counterweight torque through two sets of balance adjustment mechanisms, the eccentric load on the life raft body caused by the offset of personnel and materials is countered, so that the life raft body maintains a horizontal floating posture. S3. Observe the tilt status of the life raft body in real time while floating. When the life raft body deviates in attitude, operate the balance adjustment mechanism again to adjust its position a second time and maintain floating balance.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: With two sets of independent, circumferentially swinging counterweight bags, the circumferential distribution of the ballast weight can be actively adjusted. When the life raft tilts due to uneven distribution of personnel and supplies, the counterweight bags are moved to the lighter side of the raft, generating a reverse ballast torque to correct the tilt of the raft. This eliminates the need for personnel to frequently move their bodies to level the raft in the wind and waves, thus improving the safety of the rescue.

[0020] It can adapt to various sea conditions and flexibly change the arrangement of counterweight bags according to wind, waves and ocean currents; in large wave environments, the counterweight bags are evenly distributed to improve anti-capsulation stability; in unidirectional strong wind and ocean current conditions, the counterweight bags are concentrated on the windward and current-facing side to suppress the life raft from deflecting and turning sideways; when used with a sea anchor, the counterweight posture can be adjusted to optimize the wave-facing angle and reduce the amount of spray entering the raft.

[0021] It adopts a gear-ring manual drive mechanism. After adjustment, it is locked and fixed by the positioning screw to prevent the counterweight bag from shifting due to wind and waves. The cover protects the transmission components and resists seawater corrosion, making it suitable for use in harsh aquatic environments. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the bottom structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure when removing the cover provided in an embodiment of the present invention; Figure 4 This is provided by the embodiments of the present invention. Figure 3 Schematic diagram of the structure at the central rib plate; Figure 5 This is a schematic diagram of the front cross-sectional structure provided in an embodiment of the present invention; Figure 6 This is provided by the embodiments of the present invention. Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the adjusting lever structure provided in an embodiment of the present invention.

[0023] In the diagram: 1. Life raft body; 2. Rib plate; 201. Support plate; 202. Threaded groove; 3. Guide slide; 301. Limiting edge; 4. Buoyancy plate; 401. Nylon rope; 5. Guide seat; 501. Annular groove; 502. Limiting slide; 503. Universal ball bearing; 6. Balance weight bag; 601. Bag opening; 602. Counterweight block; 7. Gear; 701. Rotary cylinder; 702. Rotating rod; 703. Positioning screw; 704. Handle; 8. Adjusting outer cylinder; 9. Adjusting inner cylinder; 10. Gear ring; 11. First cover; 12. Second cover; 13. Adjusting swing rod. Detailed Implementation

[0024] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0025] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] refer to Figures 1 to 7 As shown in the figure, an easily adjustable emergency fire rescue device provided by an embodiment of the present invention includes a life raft body 1. A rib plate 2 is fixedly installed at the bottom of the life raft body 1. A guide slide 3 is fixedly installed on the top of the float of the life raft body 1. At least two sets of balance adjustment mechanisms are installed on the life raft body 1. Each of the two sets of balance adjustment mechanisms includes a buoyancy plate 4, a guide seat 5 that is slidably sleeved on one end of the buoyancy plate 4 and moves along the guide slide 3, a nylon rope 401 fixed to the other end of the buoyancy plate 4, and a balance weight bag 6 fixedly installed at the lower end of the nylon rope 401. Two sets of drive mechanisms are installed in the middle of the rib plate 2 for rotating and adjusting the two balance weight bags 6 respectively. The two drive mechanisms respectively include an adjusting outer cylinder 8 penetrating the middle of the rib plate 2 and an adjusting inner cylinder 9 penetrating the middle of the adjusting outer cylinder 8. Drive components are correspondingly assembled on the side walls of the adjusting outer cylinder 8 and the adjusting inner cylinder 9. The drive components are used to drive the adjusting outer cylinder 8 and the adjusting inner cylinder 9 to rotate and adjust respectively.

[0027] Specifically, the upper part of the guide seat 5 is provided with an annular groove 501, one end of the buoyancy plate 4 is slidably sleeved on the annular groove 501, the bottom of the guide seat 5 is fixedly installed with a universal ball bearing 503, the universal ball bearing 503 rolls along the guide slide 3, the lower two sides of the guide seat 5 are provided with limiting grooves 502, the inner and outer edges of the guide slide 3 are fixed with limiting edges 301, and the limiting edges 301 and the limiting grooves 502 are matched and connected.

[0028] Using the above scheme, the guide seat 5 rolls in the guide slide 3 by means of universal ball bearings 503. The limiting edge 301 cooperates with the limiting slide groove 502 to limit the radial displacement of the guide seat 5 and ensure that the guide seat 5 moves only in the circumferential direction of the float. The buoyancy plate 4 is slidably sleeved with the annular groove 501 of the guide seat 5. The buoyancy plate 4 can change its circumferential position with the guide seat 5, and at the same time, it is allowed to swing slightly to adapt to the undulation of the water surface.

[0029] Specifically, the top of the balance weight bag 6 has a bag opening 601, the bottom of the balance weight bag 6 is fixed with a counterweight block 602, and the nylon rope 401 is fitted with an adjusting swing rod 13.

[0030] Using the above scheme, the counterweight bag 6 can be filled with water through the bag opening 601 as a ballast medium, and the counterweight block 602 provides basic counterweight; the adjusting swing rod 13 rotates with the adjusting outer cylinder 8 and the adjusting inner cylinder 9, driving the nylon rope 401 and the counterweight bag 6 to swing in a circle, changing the circumferential position of the counterweight bag 6 relative to the life raft body 1, thereby changing the ballast torque.

[0031] Specifically, the outer wall of the adjusting outer cylinder 8 is connected to the middle of the rib plate 2 through a bearing, and a support plate 201 is fixedly connected to the rib plate 2. The outer wall of the adjusting inner cylinder 9 is connected to the end of the support plate 201 through a bearing. The lower end of the adjusting inner cylinder 9 extends to the bottom of the adjusting outer cylinder 8. The end of the adjusting swing rod 13 corresponding to one of the balance weight bags 6 is fixed to the bottom outer wall of the adjusting outer cylinder 8, and the end of the adjusting swing rod 13 corresponding to the other balance weight bag 6 is fixed to the bottom outer wall of the adjusting inner cylinder 9.

[0032] Using the above scheme, the outer cylinder 8 and the inner cylinder 9 are coaxially fitted together and can rotate independently without interfering with each other; the two sets of adjusting swing rods 13 are respectively connected to the outer cylinder 8 and the inner cylinder 9, so that the two sets of balance weight bags 6 can be independently adjusted in a circular swing, and the circumferential angle of the two weight bags can be adjusted separately to achieve diversified weight distribution.

[0033] Specifically, the drive assembly includes a gear 7, a rotating cylinder 701 connected to the bottom of the gear 7 via a bearing, a rotating rod 702 fixedly connected to the top of the gear 7, a positioning screw 703 threaded through the rotating rod 702 and the middle of the gear 7, and a handle 704 fixed to the top side wall of the rotating rod 702. One rotating cylinder 701 is fixed to the rib plate 2, and the other rotating cylinder 701 is fixed to the support plate 201. The upper outer walls of the adjusting outer cylinder 8 and the adjusting inner cylinder 9 are both fitted with toothed rings 10, which mesh with the corresponding gear 7.

[0034] Using the above scheme, rotating the handle 704 drives the rotating rod 702 and the gear 7 to rotate. The gear 7 meshes with the gear ring 10, which drives the adjusting outer cylinder 8 or the adjusting inner cylinder 9 to rotate, thereby driving the adjusting swing rod 13 to swing, so as to realize the circumferential position adjustment of the balance weight bag 6. The rotating cylinder 701 provides rotational support for the gear 7 to ensure the stable rotation of the gear 7.

[0035] Specifically, threaded grooves 202 are provided on the top of both the rib plate 2 and the support plate 201. When the adjustment position of the counterweight bag 6 is fixed, the lower end of the positioning screw 703 is screwed into the corresponding threaded groove 202.

[0036] Using the above method, after adjusting the position of the counterweight bag, tighten the positioning screw 703. The lower end of the screw is screwed into the threaded groove 202 to lock the rotating rod 702 and the gear 7. This prevents the gear 7 from rotating under the impact of wind and waves, ensuring that the position of the counterweight bag 6 remains fixed and avoiding the offset of the counterweight torque.

[0037] Specifically, the two drive components are respectively covered with a first cover 11 and a second cover 12. The bottom of the first cover 11 is fixed to the rib plate 2, and the bottom of the second cover 12 is fixed to the support plate 201. The upper ends of the two rotating rods 702 pass through the outside of the first cover 11 and the second cover 12.

[0038] Using the above scheme, the first cover 11 and the second cover 12 protect the transmission components such as gear 7 and gear ring 10, preventing seawater, waves, and debris from entering the transmission mechanism and causing corrosion and jamming; the upper end of the rotating rod 702 extends outside the cover, making it convenient for operators to manually operate and adjust it inside the raft.

[0039] A method for using an easily adjustable emergency fire-fighting and life-saving device, applicable to the aforementioned easily adjustable emergency fire-fighting and life-saving device, includes the following steps: S1. Deploy the life raft body 1 into the water area. Based on the wind and wave conditions of the water area to be rescued and the load distribution on the life raft body 1, operate the drive mechanism to change the position of the balance adjustment mechanism relative to the life raft body 1. S2. By adjusting its own counterweight torque through two sets of balance adjustment mechanisms, the eccentric load on the life raft body 1 caused by the offset of personnel and materials is countered, so that the life raft body 1 maintains a horizontal floating attitude. S3. Observe the tilt status of the life raft body 1 in real time while floating. When the life raft body 1 shows attitude deviation, operate the balance adjustment mechanism again to adjust its position a second time and maintain floating balance.

[0040] Working principle of the invention: In use, the life raft body 1 is deployed into the water. At this time, the guide seat 5 is supported on the guide slide 3 by the universal ball bearings 503, and the balance weight bag 6 is suspended outside the buoyancy plate 4 by the nylon rope 401, in the initial equilibrium position, providing basic ballast stability for the life raft. When the life raft tilts due to uneven loading of personnel and materials or the impact of wind, waves and ocean currents, the operator turns the corresponding handle 704 according to the tilt direction of the raft. The handle 704 drives the rotating rod 702 and the gear 7 to rotate. The gear 7 meshes with the gear ring 10, driving the adjusting outer cylinder 8 and the adjusting inner cylinder 9 to rotate independently, thereby driving the corresponding... The adjusting lever 13 swings, and the two sets of adjusting levers 13 respectively drive the corresponding counterweight bags 6 to move along the circumference of the bottom of the life raft. By changing the position of the counterweight bags, the overall center of gravity torque of the raft is adjusted, and the counterweight bags are moved to the lighter side of the raft, thereby generating a righting torque and correcting the tilting attitude of the raft. When the counterweight bags move, they will pull the nylon rope 401, which will drive the buoyancy plate 4 and the guide seat 5 to slide circumferentially along the guide slide 3. The universal ball bearing 503 ensures smooth sliding, and the annular groove 501 allows the buoyancy plate 4 to make small-amplitude adaptive swings to avoid rope jamming and uneven wear.

[0041] After the raft's attitude is leveled to a suitable position, the operator turns down the positioning screw 703, causing the lower end of the positioning screw 703 to screw into the threaded groove 202 on the rib plate 2 or support plate 201. This locks and fixes the rotating rod 702, gear 7, gear ring 10, and adjusting outer cylinder 8 and adjusting inner cylinder 9, preventing the counterweight bags from shifting back to their original position due to wind and waves, and maintaining the adjusted balance. In the face of strong winds and waves, the two sets of counterweight bags can be evenly distributed circumferentially by the cooperation of the inner and outer cylinders, improving the overall floating stability of the life raft. When encountering a strong unidirectional current, the two sets of counterweight bags can be swung in the same direction to the upstream side, enhancing the anti-deflection ability. The first cover 11 and the second cover 12 protect the transmission components such as gear 7 and gear ring 10, preventing seawater and mud from entering and ensuring that the adjustment mechanism can operate stably and reliably. The entire adjustment process can be completed without the need for personnel to move a large area on the raft, thus achieving dynamic leveling of the life raft's attitude.

[0042] 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.

[0043] 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 easily adjustable emergency fire-fighting and life-saving device, comprising a life raft body (1), characterized in that: The life raft body (1) has a rib plate (2) fixedly installed at the bottom of the raft, and a guide slide (3) fixedly installed on the top of the float of the life raft body (1). The life raft body (1) has at least two sets of balance adjustment mechanisms installed on it. Each of the two sets of balance adjustment mechanisms includes a buoyancy plate (4), a guide seat (5) that is slidably sleeved on one end of the buoyancy plate (4) and moves along the guide slide (3), a nylon rope (401) fixed to the other end of the buoyancy plate (4), and a guide seat (5) fixedly installed on the nylon rope (401). The lower end of the balance weight bag (6) has two sets of drive mechanisms installed in the middle of the rib plate (2) for rotating and adjusting the two balance weight bags (6) respectively. The two drive mechanisms include an adjusting outer cylinder (8) that passes through the middle of the rib plate (2) and an adjusting inner cylinder (9) that passes through the middle of the adjusting outer cylinder (8). The side walls of the adjusting outer cylinder (8) and the adjusting inner cylinder (9) are respectively equipped with drive components. The drive components are used to drive the adjusting outer cylinder (8) and the adjusting inner cylinder (9) to rotate and adjust respectively.

2. The easily adjustable emergency fire-fighting and life-saving equipment as described in claim 1, characterized in that: The upper part of the guide seat (5) is provided with an annular groove (501), one end of the buoyancy plate (4) is slidably sleeved on the annular groove (501), and a universal ball bearing (503) is fixedly installed at the bottom of the guide seat (5). The universal ball bearing (503) rolls along the guide slide (3). Limiting grooves (502) are provided on both sides of the lower part of the guide seat (5). Limiting edges (301) are fixed on the inner and outer edges of the guide slide (3). The limiting edges (301) and the limiting grooves (502) are matched and connected.

3. The easily adjustable emergency fire-fighting and life-saving equipment as described in claim 1, characterized in that: The top of the balance weight bag (6) is provided with a bag opening (601), the bottom of the balance weight bag (6) is fixed with a counterweight block (602), and an adjusting swing rod (13) is sleeved on the nylon rope (401).

4. The easily adjustable emergency fire-fighting and life-saving equipment as described in claim 3, characterized in that: The outer wall of the adjusting outer cylinder (8) is connected to the middle of the rib plate (2) through a bearing. A support plate (201) is fixedly connected to the rib plate (2). The outer wall of the adjusting inner cylinder (9) is connected to the end of the support plate (201) through a bearing. The lower end of the adjusting inner cylinder (9) extends to the bottom of the adjusting outer cylinder (8). The end of the adjusting lever (13) corresponding to one of the balance weight bags (6) is fixed to the bottom outer wall of the adjusting outer cylinder (8). The end of the adjusting lever (13) corresponding to the other balance weight bag (6) is fixed to the bottom outer wall of the adjusting inner cylinder (9).

5. The easily adjustable emergency fire-fighting and life-saving equipment as described in claim 4, characterized in that: The drive assembly includes a gear (7), a rotating cylinder (701) connected to the bottom of the gear (7) via a bearing, a rotating rod (702) fixedly connected to the top of the gear (7), a positioning screw (703) threaded through the rotating rod (702) and the middle of the gear (7), and a handle (704) fixed to the top side wall of the rotating rod (702). One of the rotating cylinders (701) is fixed on the rib plate (2), and the other rotating cylinder (701) is fixed on the support plate (201). The upper outer walls of the adjusting outer cylinder (8) and the adjusting inner cylinder (9) are both fitted with toothed rings (10), and the toothed rings (10) are meshed with the corresponding gears (7).

6. The easily adjustable emergency fire-fighting and life-saving equipment as described in claim 5, characterized in that: Both the rib plate (2) and the support plate (201) have threaded grooves (202) on their tops. When the adjustment position of the counterweight bag (6) is fixed, the lower end of the positioning screw (703) is screwed into the corresponding threaded groove (202).

7. The easily adjustable emergency fire-fighting and life-saving equipment as described in claim 5, characterized in that: The two drive components are respectively covered with a first cover (11) and a second cover (12). The bottom of the first cover (11) is fixed to the rib plate (2), and the bottom of the second cover (12) is fixed to the support plate (201). The upper ends of the two rotating rods (702) pass through the outside of the first cover (11) and the second cover (12).

8. A method for using an easily adjustable emergency fire-fighting and life-saving device, characterized in that, The easily adjustable emergency fire-fighting and life-saving equipment according to any one of claims 1-7 includes the following steps: S1. Deploy the life raft body (1) into the water area. Based on the wind and wave conditions of the water area to be rescued and the load distribution on the life raft body (1), operate the drive mechanism to change the position of the balance adjustment mechanism relative to the life raft body (1). S2. By adjusting its own counterweight torque through two sets of balance adjustment mechanisms, the eccentric load on the life raft body (1) caused by the offset of personnel and materials is offset, so that the life raft body (1) maintains a horizontal floating posture. S3. Observe the tilt state of the life raft body (1) in real time while floating. When the life raft body (1) shows attitude deviation, operate the balance adjustment mechanism again to adjust its position a second time and maintain floating balance.

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