Underwater anchoring type drowning fire rescue device

Abstract

The invention relates to the technical field of fire rescue equipment, and discloses an underwater anchoring type drowning fire rescue device which comprises a conical frame, an inflation ring is installed at the top end of the conical frame, a plurality of connecting rods are fixedly connected to the interior of the middle of the conical frame, and damping assemblies are installed between the connecting rods. A fixing rod is fixedly connected to the interior of the bottom end of the conical frame, rotating columns are rotationally connected to the two sides of the fixing rod correspondingly, one side of each rotating column is rotationally connected to the interior of the conical frame, a rope is wound around the exterior of each rotating column, and one end of each rope is fixedly connected to the interior of the corresponding rotating column; and the other end of the rope is fixedly connected with an anchoring block. Damping assemblies composed of swing ropes and damping balls are arranged between the multiple connecting rods, and energy consumption suppression is conducted on shaking of the device through underwater swing damping, so that the device still keeps high stability under the conditions of personnel grabbing and water flow impact.

Description

Technical Field

[0001] This invention relates to the field of fire rescue equipment technology, specifically to an underwater anchored drowning fire rescue device. Background Technology

[0002] Drowning accidents often occur in open or semi-open water environments such as rivers, reservoirs, ports, and urban rivers. The scene is often accompanied by objective limitations such as rapid changes in water flow, poor visibility, and difficulty for rescuers to directly approach the trapped target.

[0003] A search revealed an underwater anchored drowning rescue device disclosed in publication number CN118479006A. This invention discloses an underwater anchored drowning rescue device, belonging to the field of underwater fire rescue equipment technology. It includes: a floating platform with attachments fixed on it for use with UAVs / manned aircraft; a vertical main mounting base at the front of the floating platform; a pair of obliquely arranged auxiliary mounting bases symmetrically installed on both sides of the floating platform; a main anchor, interference-fitted into the main mounting base, with rope A pre-wound around its bolt; one end of rope A connected to the top of the main anchor bolt, and the other end connected to the main mounting base; each auxiliary mounting base encapsulates an auxiliary anchor; a launching base is installed at the bottom of the floating platform; the launching base is conductive to the bottoms of both auxiliary mounting bases; and a delayed firing mechanism is provided within the launching base. This invention can operate in all weather conditions, is low-cost, and by deploying the invention layer by layer downstream or in the diffusion direction of the water flow, the search and rescue area can be locked in advance, improving rescue efficiency.

[0004] However, in the process of developing the underwater anchored drowning rescue device, the inventors of this application discovered that the aforementioned prior art solutions have at least the following technical problems: Although the device can fix the floating platform in the water by means of the main anchor and the secondary anchor, its structure only forms a rigid tension connection between the floating platform, ropes, and anchors, without any buffer or damping structure to absorb the impact of water flow or disturbance from personnel contact. When the floating platform is subjected to water flow or when a drowning person grabs the floating platform, the floating platform and the connection system between it and the anchor are prone to large-amplitude swaying and vibration, making it difficult to maintain a stable posture and thus not conducive to providing a reliable and stable surface support platform for drowning people. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an underwater anchored drowning fire rescue device, which solves the problem that in existing technologies, when the floating platform is subjected to water flow or when a drowning person grabs the floating platform, the floating platform and the connection system between it and the anchor body are prone to large-amplitude swaying and vibration.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an underwater anchored drowning fire rescue device, comprising a conical frame, an inflatable ring mounted on the top of the conical frame, multiple connecting rods fixedly connected to the middle of the conical frame, a damping assembly installed between the multiple connecting rods, a fixed rod fixedly connected to the bottom of the conical frame, rotating columns rotatably connected to both sides of the fixed rod, one side of the rotating column rotatably connected to the inside of the conical frame, a rope wound around the outside of the rotating column, one end of the rope fixedly connected to the inside of the rotating column, and the other end of the rope fixedly connected to an anchoring block.

[0007] Preferably, a limiting block is slidably connected inside the tapered frame, a float plate is fixedly connected to the lower surface of the limiting block, a limiting post is fixedly connected inside the limiting block, and the other end of the limiting post is engaged inside the rotating post.

[0008] Preferably, a baffle is provided at the top of the limiting block, and the outside of the baffle is slidably connected to the inside of the tapered frame.

[0009] Preferably, spring plates are provided on both sides of the baffle, and the spring plates are installed inside the conical frame.

[0010] Preferably, the damping assembly includes a housing, which is fixedly connected between a plurality of connecting rods, and a swing rope is installed on the inner top wall of the housing, with a damping ball fixedly connected to the bottom end of the swing rope.

[0011] Preferably, the rope is made of a water-absorbing material, and the anchor block is provided with water-absorbing material inside.

[0012] Preferably, the baffle is a detachable structure, and the two sides of the baffle cooperate with the two side spring sheets to form a clamp. After the baffle is inserted into place, its other end abuts against the upper surface of the limiting block to restrict the movement of the limiting block.

[0013] Preferably, the bottom end of the float plate is provided with multiple arc holes, which are used to generate an upward buoyancy thrust and drive the limiting block to move upward along the inner wall of the conical frame.

[0014] Preferably, the outer periphery of the rotating column is provided with a rope winding portion for accommodating the rope, and the rope is wound around the rope winding portion.

[0015] Preferably, the limiting post and the rotating post are engaged in a snap-fit ​​limiting fit, and the snap-fit ​​is released when the limiting block moves upward, so that the rotating post rotates under the downward pulling force of the anchor block and releases the rope.

[0016] This invention provides an underwater anchored drowning fire rescue device. It has the following beneficial effects: 1. This invention uses a damping assembly consisting of a swing rope and a damping ball, which is set between multiple connecting rods, to suppress the swaying of the device by underwater swing damping, so that the device can maintain high stability under the conditions of personnel holding on and water flow impact.

[0017] 2. The present invention uses a floating plate, a limiting block and a limiting column to unlock the rotating column, so that the anchoring block can be automatically released and sink to complete the anchoring after the device enters the water, without the need for manual entry into the water or additional operation, which significantly improves the rapid deployment capability in water rescue scenarios.

[0018] 3. The present invention uses a baffle and a spring sheet to form a detachable limiting structure, which enables the limiting block to switch quickly between the transport standby state and the working release state. This avoids accidental triggering of rope release and facilitates recovery and reset, significantly improving the reusability efficiency and on-site operation reliability of the entire device.

[0019] 4. This invention incorporates water-absorbing material inside the rope and anchor block, causing the anchoring system to automatically increase in weight after entering the water. This effectively reduces the interference of water flow on the sinking trajectory of the anchor block, improving the stability of the landing and the reliability of the anchoring. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the inflatable ring of the present invention; Figure 3 This is a partial structural diagram of the connecting rod of the present invention; Figure 4 This is a partial structural diagram of the limiting post of the present invention; Figure 5 This is a partial structural diagram of the spring sheet of the present invention; Figure 6 This is a partial structural diagram of the damping component of the present invention.

[0021] The components are as follows: 1. Conical frame; 2. Inflatable ring; 3. Connecting rod; 4. Damping assembly; 41. Outer shell; 42. Swing rope; 43. Damping ball; 5. Fixing rod; 6. Rotating column; 7. Rope; 8. Anchor block; 9. Limiting block; 10. Float; 11. Limiting column; 12. Baffle; 13. Spring plate. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides an underwater anchored drowning fire rescue device, including a conical frame 1, an inflatable ring 2 installed at the top of the conical frame 1, multiple connecting rods 3 fixedly connected inside the middle of the conical frame 1, a damping component 4 installed between the multiple connecting rods 3, a fixing rod 5 fixedly connected inside the bottom end of the conical frame 1, rotating columns 6 rotatably connected to both sides of the fixing rod 5, one side of the rotating column 6 rotatably connected inside the conical frame 1, a rope 7 wrapped around the outside of the rotating column 6, one end of the rope 7 fixedly connected inside the rotating column 6, and the other end of the rope 7 fixedly connected to an anchoring block 8.

[0024] Specifically, after the device is deployed into the water, the inflatable ring 2 initially provides the main buoyancy, keeping the conical frame 1 vertical and in a semi-floating state. As water enters the conical frame 1, the water flow acting below the float 10 combines with the buoyancy, generating an upward buoyant force on the float 10. The float 10 then drives the limiting block 9 to move upward along the inner wall of the conical frame 1. During the upward movement of the limiting block 9, the limiting post 11 fixed inside it moves upward synchronously and gradually disengages from the rotating post 6. Once the limiting post 11 is completely disengaged from the rotating post 6, the rotating post 6 switches from a locked state to a freely rotating state.

[0025] At this point, the rope 7, wound around the rotating column 6, is passively pulled to rotate by the weight of the anchor block 8 and the sinking pull after entering the water. The rope 7 is automatically released, and the anchor block 8 sinks vertically below the device, realizing the automatic deployment of the anchoring unit. After the anchor block 8 enters the water, its internal absorbent material quickly absorbs water and increases its weight. At the same time, the rope 7 itself is made of absorbent material, which simultaneously increases the weight of the rope. This reduces the disturbance of the anchoring system to the water flow during the sinking process, enabling it to maintain a more stable falling trajectory and improving the posture stability of the anchor block 8 before it touches the bottom.

[0026] When the anchor block 8 reaches the bottom of the water, the rope 7 forms a continuous downward tension under its own weight and the tension of the anchor block 8. This tension is transmitted to the fixed rod 5 through the rotating column 6, and then from the fixed rod 5 to the bottom of the conical frame 1. This causes the conical frame 1 to form a state of balance between upward buoyancy and downward tension, thereby achieving stable positioning of the main body of the device in the water surface and underwater space.

[0027] When personnel come into contact with the device or water flow impacts the device, the damping assembly 4, which is installed between multiple connecting rods 3 inside the conical frame 1, begins to work. The swing rope 42 inside the damping assembly 4 and the damping ball 43 at its lower end swing relative to the device as it shakes inside the outer shell 41. The swing inertia generates a damping torque, which attenuates the instantaneous sway of the conical frame 1, thereby providing dynamic buffering and stability for the entire device.

[0028] During the device retrieval phase, after the device is lifted out of the water, the water absorbed inside the rope 7 and anchor block 8 is drained. Then, the rotating column 6 is manually rotated in the opposite direction to rewind the rope 7 onto the rope winding section, completing the retrieval of the anchor block 8. Subsequently, the limiting block 9 and the float 10 are pushed back to their original positions, causing the limiting column 11 to re-engage inside the rotating column 6. Then, the baffle 12 is inserted into the spring plate 13 to form a clamp, with its other end abutting against the upper surface of the limiting block 9, thereby preventing the limiting block 9 from moving upwards again, completing the reset before the next use.

[0029] Please see the appendix Figure 4 The conical frame 1 has a sliding connection to a limiting block 9 inside, a floating plate 10 fixedly connected to the lower surface of the limiting block 9, a limiting post 11 fixedly connected inside the limiting block 9, and the other end of the limiting post 11 is engaged inside the rotating post 6; a baffle 12 is provided at the top of the limiting block 9, and the outside of the baffle 12 is slidably connected to the inside of the conical frame 1.

[0030] Specifically, after the device is submerged in water, the water flow and buoyancy directly act on the float plate 10, causing it to generate a continuous upward buoyancy force. The float plate 10 transmits this buoyancy force to the limiting block 9, causing it to move upward along the inner wall of the conical frame 1. During the upward movement of the limiting block 9, the limiting post 11 moves synchronously and gradually disengages from its locking engagement with the rotating post 6, thereby releasing the limiting effect on the rotating post 6. When the device is in standby mode, the baffle 12 is inserted inside the conical frame 1 and abuts against the upper surface of the limiting block 9, providing axial limitation for the limiting block 9.

[0031] The buoyancy structure formed by the float plate 10, the limiting block 9 and the limiting column 11 enables the device to automatically drive the limiting block 9 to move upward by relying on the buoyancy of the water itself after entering the water, and automatically release the limiting column 11 from the locking restriction of the rotating column 6. This solves the problem that traditional underwater anchoring devices require manual unlocking, are complicated to operate and are difficult to implement quickly in aquatic environments.

[0032] Please see the appendix Figure 5 Both sides of the baffle 12 are provided with spring plates 13, which are installed inside the conical frame 1.

[0033] Specifically, during the insertion or withdrawal of the baffle 12 along the inner wall of the conical frame 1, its two side edges come into elastic contact with the correspondingly arranged spring plates 13. After being compressed, the spring plates 13 generate an inward clamping force, forming a continuous elastic lateral pressing effect on the baffle 12, so that the baffle 12 can be stably maintained at the set height after its axial position is determined. When the baffle 12 is pushed to a predetermined position above the limiting block 9, the spring plates 13 clamp the baffle 12 inside the conical frame 1 through their own rebound force, so that the end of the baffle 12 abuts against the upper surface of the limiting block 9, thereby forming an upward limit on the limiting block 9 and preventing the float 10 from pushing the limiting block 9 to move upward unexpectedly under the action of buoyancy.

[0034] When the device needs to be activated, the baffle 12 is pulled out along the inner wall of the conical frame 1, the limit above the limit block 9 is released, and then the buoyancy force generated by the float 10 can directly act on the limit block 9, causing the limit post 11 to disengage from the locking structure of the rotating post 6, thus realizing the unlocking action.

[0035] By setting spring plates 13 on both sides of the baffle 12, the baffle 12 is fixed by elastic clamping, which solves the problems of inconvenient installation and disassembly, easy loosening and low operation efficiency of traditional rigid pin or screw limiting structures in underwater environment.

[0036] Please see the appendix Figure 6 The damping assembly 4 includes a housing 41, which is fixedly connected between multiple connecting rods 3. A swing rope 42 is installed on the inner top wall of the housing 41, and a damping ball 43 is fixedly connected to the bottom end of the swing rope 42.

[0037] Specifically, when the conical frame 1 sways under the impact of water flow, personnel gripping, or changes in the force on the anchor block 8, the multiple connecting rods 3 connected inside the conical frame 1 move synchronously with the main structure, causing the outer shell 41, which is fixedly supported by the connecting rods 3, to change its spatial posture. At this time, the swing rope 42 suspended on the inner top wall of the outer shell 41 and the damping ball 43 at its lower end sway backward relative to the outer shell 41 due to inertia. During the swinging process of the damping ball 43 inside the outer shell 41, the swing rope 42 continuously consumes vibration energy during repeated swinging and oscillation, thereby converting the vibration energy transmitted from the conical frame 1 and connecting rods 3 to the damping assembly 4 into water resistance loss and swing energy consumption. This creates a reverse resistance effect on the instantaneous displacement and angle change of the conical frame 1, gradually weakening and rapidly attenuating the overall sway amplitude of the device. Since the damping components 4 are arranged between multiple connecting rods 3, when the device is subjected to external force in any direction, the damping components 4 in different positions can participate in energy dissipation simultaneously, so that the tapered frame 1 can obtain a stable dynamic buffering effect under multi-directional force conditions.

[0038] By continuously dissipating energy during the oscillation of the damping ball 43 within the outer casing 41 through the damping component 4, the conical frame 1 can rapidly attenuate vibrations when subjected to force changes, thereby improving the stability and impact resistance of the device in its positioning state on the water surface and underwater. Please see the appendix Figure 1 The rope 7 is made of absorbent material, and the anchor block 8 has absorbent material inside.

[0039] Specifically, the rope 7 is made of a hydrophilic composite fiber weaving structure, preferably a blend of polyvinyl alcohol fiber and polyester fiber. Polyvinyl alcohol fiber is the main water-absorbing component, which can quickly absorb and retain a large amount of water after being immersed in water. Polyester fiber is used as the skeleton fiber to ensure the overall strength, wear resistance and tensile properties of the rope 7, so that the rope 7 can maintain reliable mechanical properties under long-term immersion and repeated stretching conditions.

[0040] The anchor block 8 is filled with a composite layer of super absorbent resin and open-cell foamed sponge. The super absorbent resin is preferably sodium polyacrylate, which is used to quickly absorb and lock in a large amount of water after it is immersed in water. The open-cell foamed sponge serves as a load-bearing and supporting matrix, which is used to fix the super absorbent resin and form a continuous water absorption channel, so that water can quickly enter the interior of the anchor block 8, thereby improving the overall water absorption efficiency and water absorption stability.

[0041] Please see the appendix Figure 1 - Appendix Figure 4 The baffle 12 is a detachable structure. The two sides of the baffle 12 cooperate with the two side spring plates 13 to form a clamp. After the baffle 12 is inserted into place, its other end abuts against the upper surface of the limiting block 9 to restrict the movement of the limiting block 9. The bottom end of the float 10 is provided with multiple arc holes, which are used for the float 10 to generate an upward buoyancy thrust and drive the limiting block 9 to move upward along the inner wall of the conical frame 1. Specifically, when the device is submerged in water and enters the working state, the limit above the limiting block 9 is released. The buoyancy and water flow thrust generated by the water on the bottom of the float plate 10 enter the area below and above the float plate 10 through multiple arc holes set at the bottom end of the float plate 10. Under the guiding effect of the arc holes, an upward water flow is formed, which enables the float plate 10 to obtain buoyancy thrust and transmits the thrust to the limiting block 9, thereby driving the limiting block 9 to move upward along the inner wall of the conical frame 1.

[0042] The arc-shaped hole allows water to pass through the float 10 quickly, effectively reducing water resistance and eddy current effects during the upward movement of the float 10, and preventing the float 10 from deflecting or getting stuck due to water flow turbulence, thereby ensuring the continuity and stability of the movement of the limit block 9 during the unlocking process.

[0043] Please see the appendix Figure 1 The outer periphery of the rotating column 6 is provided with a rope winding part for accommodating the rope 7, and the rope 7 is wound on the rope winding part; the limiting column 11 and the rotating column 6 are engaged in a locking and limiting fit, and the locking is released when the limiting block 9 moves upward, so that the rotating column 6 rotates under the action of the sinking pull of the anchor block 8 and releases the rope 7.

[0044] Specifically, when the float 10 moves the limiting block 9 upward along the inner wall of the conical frame 1, the limiting post 11 fixed on the limiting block 9 simultaneously disengages from the locking part of the rotating post 6, and the rotating post 6 is then released from rotation restriction. Under the action of the sinking pull generated by the self-weight of the anchor block 8 and the increased weight after water absorption, the rope 7 applies a tangential traction force to the rope winding part, causing the rotating post 6 to passively rotate around its axis of rotation. The rope 7 is released from the rope winding part in sequence, driving the anchor block 8 to continue to be lowered to the bottom of the water.

[0045] Working principle: First, the baffle 12 is pulled out from the spring plate 13. After the device is put into the water, the conical frame 1 maintains a stable posture under the buoyancy of the air ring 2. The water will push the float 10 to rise. The limiting block 9 located inside the conical frame 1 moves upward along the inner wall of the conical frame 1 under the buoyancy of the float 10. At the same time as the limiting block 9 moves upward, it will drive the limiting column 11 to disengage from the rotating column 6. At this time, the anchor block 8 comes into contact with the water and sinks, thereby releasing the rope 7 to drive the rotating column 6 to rotate. The anchor block 8 completes the initial positioning. Secondly, after the anchor block 8 reaches the bottom, the rope 7 and the water-absorbing material inside the anchor block 8 absorb water and increase in weight, improving sinking stability and anchoring effect. At the same time, the fixing rod 5 supports and limits the rotating column 6, enabling the anchor block 8 to stably tighten the main body of the device. When water flows or personnel come into contact with the device, the outer shell 41, swing rope 42, and damping ball 43 in the damping assembly 4 set between multiple connecting rods 3 generate swing damping, buffering the overall swaying of the conical frame 1, thereby achieving reliable underwater fixation and rescue stability support functions for the device. Finally, during the personnel grabbing and retrieval process, the device is retrieved from the water. The water in the rope 7 and anchor block 8 is removed, and the rotating column 6 is manually rotated so that the rope 7 is wrapped around the rotating column 6, thus completing the retrieval of the anchor block 8. The limiting block 9 and float 10 are then reset so that the limiting column 11 is engaged inside the rotating column 6. Finally, the baffle 12 is inserted into the spring plate 13, with the other end of the baffle 12 located on the upper surface of the limiting block 9, thus completing the reuse.

[0046] 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 underwater anchored drowning fire rescue device, comprising a conical frame (1), characterized in that, An inflatable ring (2) is installed at the top of the conical frame (1). Multiple connecting rods (3) are fixedly connected in the middle of the conical frame (1). A damping assembly (4) is installed between the multiple connecting rods (3). A fixed rod (5) is fixedly connected in the bottom of the conical frame (1). Rotating columns (6) are rotatably connected to both sides of the fixed rod (5). One side of the rotating column (6) is rotatably connected to the inside of the conical frame (1). A rope (7) is wrapped around the outside of the rotating column (6). One end of the rope (7) is fixedly connected to the inside of the rotating column (6). The other end of the rope (7) is fixedly connected to an anchor block (8).

2. The underwater anchored drowning fire rescue device according to claim 1, characterized in that, The conical frame (1) is internally connected to a limiting block (9), and a float plate (10) is fixedly connected to the lower surface of the limiting block (9). A limiting column (11) is fixedly connected inside the limiting block (9), and the other end of the limiting column (11) is engaged inside the rotating column (6).

3. The underwater anchored drowning fire rescue device according to claim 2, characterized in that, The top of the limiting block (9) is provided with a baffle (12), and the outside of the baffle (12) is slidably connected to the inside of the conical frame (1).

4. The underwater anchored drowning fire rescue device according to claim 3, characterized in that, Spring plates (13) are provided on both sides of the baffle (12), and the spring plates (13) are installed inside the conical frame (1).

5. The underwater anchored drowning fire rescue device according to claim 1, characterized in that, The damping assembly (4) includes a housing (41) which is fixedly connected between multiple connecting rods (3). A swing rope (42) is installed on the inner top wall of the housing (41), and a damping ball (43) is fixedly connected to the bottom end of the swing rope (42).

6. The underwater anchored drowning fire rescue device according to claim 1, characterized in that, The rope (7) is made of water-absorbing material, and the anchor block (8) is equipped with water-absorbing material inside.

7. The underwater anchored drowning fire rescue device according to claim 3, characterized in that, The baffle (12) is a detachable structure. The two sides of the baffle (12) cooperate with the two sides of the spring sheet (13) to form a clamp. After the baffle (12) is inserted into place, its other end abuts against the upper surface of the limiting block (9) to restrict the movement of the limiting block (9).

8. The underwater anchored drowning fire rescue device according to claim 2, characterized in that, The bottom end of the float plate (10) is provided with multiple arc holes, which are used to generate upward buoyancy thrust of the float plate (10) and drive the limiting block (9) to move upward along the inner wall of the conical frame (1).

9. The underwater anchored drowning fire rescue device according to claim 2, characterized in that, The outer periphery of the rotating column (6) is provided with a rope winding section for accommodating the rope (7), and the rope (7) is wound around the rope winding section.

10. An underwater anchored drowning fire rescue device according to claim 9, characterized in that, The limiting post (11) and the rotating post (6) are engaged in a locking fit, and the locking is released when the limiting block (9) moves upward, so that the rotating post (6) rotates under the sinking pull of the anchor block (8) and releases the rope (7).

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