Quick release and stowable lifeline
By introducing storage and restraint components into the rescue rope ladder, and utilizing a winding machine and drive motor, the problem of twisting during the deployment of the rescue rope ladder was solved, enabling rapid release and winding, and improving rescue efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU DINGXIANG MARINE EQUIP CO LTD
- Filing Date
- 2024-07-29
- Publication Date
- 2026-07-14
AI Technical Summary
Existing rescue rope ladders are prone to twisting during deployment, affecting climbing and rescue effectiveness. Furthermore, it is difficult for people who have fallen into the water to climb long rescue rope ladders, resulting in low rescue efficiency.
A rescue rope ladder that can be quickly released and retracted is designed. It is equipped with storage and restraint components. Through the cooperation of the retractor, drive motor and conveyor chain, the rescue rope ladder can be neatly stored and quickly released and retracted. People who fall into the water can grab the rope ladder and be quickly lifted up.
It enables the rapid release and retraction of the rescue rope ladder, preventing twisting and allowing people who have fallen into the water to be quickly lifted without climbing, thus improving rescue efficiency and effectiveness.
Smart Images

Figure CN118933552B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rescue rope ladder technology, and in particular to a rescue rope ladder that can be quickly released and retracted. Background Technology
[0002] A rescue rope ladder is a mobile ladder used to rescue and evacuate trapped people. It generally consists of two ropes and multiple steps and is frequently used in firefighting, rescue aircraft, and ships to rescue people who have fallen into the water.
[0003] Existing lifeline ladders are generally stored in a stacked manner. These ladders lack restraint devices during deployment, making them prone to twisting and affecting climbing and rescue effectiveness. Furthermore, people awaiting rescue or those who have been in the water for an extended period often lack the physical strength to climb long lifeline ladders. To facilitate rapid rescue of people in the water and to allow for neat deployment and retraction of lifeline ladders, a new type of lifeline ladder with rapid release and retraction is proposed. This ladder is equipped with storage and restraint components, allowing for neat storage of the lifeline and easy rapid deployment and retraction. Once a person in the water grasps the ladder, it can be quickly retracted, enabling them to be lifted quickly without climbing, preventing them from becoming too exhausted to climb the ladder and reach the ship. This design offers significantly improved rescue effectiveness and capability. Summary of the Invention
[0004] This invention provides a rescue rope ladder that can be quickly released and retracted. It is equipped with storage and restraint components, which can neatly store the rescue rope and facilitate quick release and retraction. After a person falls into the water grabs the rescue rope ladder, it can be quickly retracted, so that the person can be quickly lifted without climbing, preventing them from being unable to climb the rope ladder and enter the boat due to exhaustion. It has better rescue effect and rescue capability.
[0005] The present invention provides the following solution to the above-mentioned technical problems: a rescue rope ladder that can be quickly released and wound up, comprising a rescue rope ladder body, a conveyor chain, and a rope ladder storage rack. Two conveyor chains are provided. Connecting ropes are evenly and fixedly connected to the rescue rope ladder body. The rescue rope ladder body is connected to the conveyor chains via the connecting ropes. A winding and unwinding machine and a rope ladder conveyor frame are fixedly installed on the rope ladder storage rack. One end of the rescue rope ladder body is connected to the winding and unwinding machine. A drive motor is fixedly installed on the rope ladder conveyor frame. A drive rod is rotatably connected to the rope ladder conveyor frame. The drive end of the drive motor is connected to one drive rod. A transmission gear and a conveying wheel are fixedly connected to the drive rod. The transmission gears on both sides are meshed together. Conveying tooth blocks are evenly and fixedly installed on the conveying wheel corresponding to the conveyor chain. A guide roller is installed on the rope ladder conveyor frame.
[0006] The main body of the rescue rope ladder includes a safety rope, a ladder board, and a connecting hoop. The ladder board has a through hole corresponding to the safety rope, through which the safety rope passes. The ladder board is connected to the safety rope via the connecting hoop.
[0007] The conveyor chain includes rectangular chain blocks and chain ropes, and multiple rectangular chain blocks are connected into a chain by chain ropes.
[0008] Based on the above technical solution, the present invention can be further improved as follows.
[0009] Furthermore, the outer wall of the guide roller is designed with a concave structure, and the width of the concave section is consistent with the spacing between the two conveyor chains. The guide roller can smoothly transport the main body of the rescue rope ladder and the conveyor chain to the winding machine for winding.
[0010] Furthermore, the bottom of the rope ladder storage rack has an entrance and exit corresponding to the main body of the rescue rope ladder, and the main body of the rescue rope ladder enters and exits through the entrance and exit.
[0011] Furthermore, a load-bearing bracket is fixedly installed at the bottom of the rope ladder storage rack, allowing the rope ladder storage rack to be placed at a height, making it easier for people who have fallen into the water to board the boat.
[0012] Furthermore, the safety ropes are provided in two sets, placed on both sides of the ladder board, with two safety ropes on each side.
[0013] Furthermore, the spacing between the rectangular chain blocks is consistent with the spacing between the conveying tooth blocks, so that the conveying tooth blocks can be engaged with the rectangular chain blocks.
[0014] Furthermore, the rectangular chain block is provided with a rectangular hole that matches the conveying tooth block.
[0015] The beneficial effects of this invention are: This invention provides a rescue rope ladder that can be quickly released and retracted, and has the following advantages:
[0016] 1. When unwinding is required, start the unwinding machine to unwind and start the drive motor to rotate one side of the drive rod. The transmission gears of the two drive rods mesh and connect, so that the two drive rods can rotate synchronously. The two drive rods can drive the conveyor wheel to rotate. The conveyor teeth of the conveyor wheel can be locked into the rectangular chain blocks of the conveyor chain, so that the main body of the rescue rope ladder in the middle of the two conveyor chains can be stably, quickly and evenly discharged, thereby preventing the main body of the rescue rope ladder from getting tangled and affecting the release and use.
[0017] 2. The main body of the rescue rope ladder is placed on the water surface. People who fall into the water can cling to the safety rope and ladder board of the main body of the rescue rope ladder. When it is necessary to rescue people who have fallen into the water, the winding and unwinding machine can be started to reverse and the drive motor of the rope ladder conveyor frame can be started to reverse. The reverse drive motor can drive the conveyor wheels on both sides to reverse. The reverse of the conveyor wheels on both sides can drive the conveyor chains on both sides to lift through the conveyor teeth, so that people who have fallen into the water who are clinging to the main body of the rescue rope ladder can be lifted synchronously and stably without climbing. The winding and unwinding machine can then smoothly wind up the main body of the rescue rope ladder that is limited and retracted at the rope ladder conveyor frame.
[0018] 3. This type of rescue rope ladder is equipped with storage and restraint components, which can neatly store the rescue rope and facilitate quick release and reeling. After a person falls into the water grabs the rescue rope ladder, it can be quickly reeled in, so that the person can be quickly lifted without climbing, preventing them from being unable to climb the rope ladder and enter the boat due to exhaustion. It has a better rescue effect and rescue capability.
[0019] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description
[0020] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:
[0021] Figure 1 This is a schematic diagram of a rescue rope ladder that can be quickly released and retracted according to an embodiment of the present invention;
[0022] Figure 2 A schematic diagram of the structure of a rewinding and unwinding mechanism in a life-saving rope ladder that can be quickly released and wound up, according to an embodiment of the present invention;
[0023] Figure 3 A schematic diagram of the structure of a rope ladder conveyor frame in a life-saving rope ladder that can be quickly released and retracted, according to an embodiment of the present invention;
[0024] Figure 4 A schematic diagram of the structure of a rope ladder conveyor frame in a life-saving rope ladder that can be quickly released and retracted, according to an embodiment of the present invention;
[0025] Figure 5 This is a schematic diagram of the inlet and outlet structure of a rescue rope ladder that can be quickly released and retracted, according to an embodiment of the present invention.
[0026] Figure 6 This is a schematic diagram of the inlet and outlet structure of a rescue rope ladder that can be quickly released and retracted, according to an embodiment of the present invention.
[0027] Figure 7 This is a schematic diagram of the inlet and outlet structure of a rescue rope ladder that can be quickly released and retracted, according to an embodiment of the present invention.
[0028] Figure 8 This is a schematic diagram of the inlet and outlet structure of a rescue rope ladder that can be quickly released and retracted, according to an embodiment of the present invention.
[0029] The attached diagram lists the components represented by each number as follows:
[0030] 1. Rescue rope ladder body; 101. Safety rope; 102. Ladder board; 103. Connecting hoop; 2. Connecting rope; 3. Conveyor chain; 301. Rectangular chain block; 302. Chain rope; 4. Rope ladder storage rack; 5. Winding machine; 6. Rope ladder conveyor frame; 7. Drive motor; 8. Drive rod; 9. Transmission gear; 10. Conveyor wheel; 11. Conveyor tooth block; 12. Guide roller; 13. Inlet and outlet; 14. Load-bearing bracket. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-8 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.
[0032] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0034] like Figure 1-8As shown, the present invention provides a rescue rope ladder that can be quickly released and wound up, including a rescue rope ladder body 1, a conveyor chain 3, and a rope ladder storage rack 4. There are two conveyor chains 3. The rescue rope ladder body 1 is uniformly and fixedly connected with connecting ropes 2. The rescue rope ladder body 1 is connected to the conveyor chain 3 through the connecting ropes 2. The rope ladder storage rack 4 is fixedly installed with a winding and unwinding machine 5 and a rope ladder conveying frame 6. One end of the rescue rope ladder body 1 is connected to the winding and unwinding machine 5. The rope ladder conveying frame 6 is fixedly installed with a drive motor 7. The rope ladder conveying frame 6 is rotatably connected with a drive rod 8. The drive end of the drive motor 7 is connected to one of the drive rods 8. The drive rod 8 is fixedly connected with a transmission gear 9 and a conveying wheel 10. The transmission gears 9 on both sides are meshed and connected. The conveying wheel 10 is uniformly and fixedly installed with conveying tooth blocks 11 corresponding to the conveyor chain 3. The rope ladder conveying frame 6 is installed with a guide roller 12.
[0035] The conveyor chain 3 includes rectangular chain blocks 301 and chain ropes 302, and multiple rectangular chain blocks 301 are connected into a chain by chain ropes 302.
[0036] The main body 1 of the rescue rope ladder includes a safety rope 101, a ladder plate 102, and a connecting hoop 103. The ladder plate 102 has a through hole corresponding to the safety rope 101, through which the safety rope 101 passes. The ladder plate 102 is connected to the safety rope 101 through the connecting hoop 103.
[0037] Preferably, the outer wall of the guide roller 12 is configured as a concave structure, and the width of the concave section is consistent with the spacing of the conveyor chains 3 on both sides. The guide roller 12 can smoothly transport the rescue rope ladder body 1 and the conveyor chain 3 to the winding and unwinding machine 5 for winding.
[0038] Preferably, the bottom of the rope ladder storage rack 4 is provided with an inlet and outlet 13 corresponding to the main body of the rescue rope ladder 1, and the main body of the rescue rope ladder 1 enters and exits through the inlet and outlet 13.
[0039] Preferably, a load-bearing bracket 14 is fixedly installed at the bottom of the rope ladder storage rack 4, so that the rope ladder storage rack 4 can be placed at a height, making it convenient for people who fall into the water to board the boat.
[0040] Preferably, the safety ropes 101 are provided in two sets and placed on both sides of the ladder board 102, with two safety ropes 101 on each side.
[0041] Preferably, the spacing of the rectangular chain blocks 301 is consistent with the spacing of the conveying tooth blocks 11, so that the conveying tooth blocks 11 can be inserted into the rectangular chain blocks 301.
[0042] Preferably, the rectangular chain block 301 is provided with a rectangular hole that matches the conveying tooth block 11.
[0043] The specific working principle and usage method of this invention are as follows: When unwinding is required, the unwinding machine 5 is started to unwind and the drive motor 7 is started to rotate one side drive rod 8. The transmission gears 9 of the two drive rods 8 are engaged and connected, so that the two drive rods 8 can rotate synchronously. The two drive rods 8 can drive the conveyor wheel 10 to rotate. The conveyor tooth block 11 of the conveyor wheel 10 can be inserted into the rectangular chain block 301 of the conveyor chain 3, so that the main body 1 of the rescue rope ladder in the middle of the two conveyor chains 3 can be stably, quickly and evenly discharged, thereby preventing the main body 1 of the rescue rope ladder from knotting and tangling. The main body 1 of the rescue rope ladder is placed on the water surface, and people who fall into the water can climb the rescue rope ladder. At the safety rope 101 and ladder board 102 of the main body 1, when it is necessary to rescue a person who has fallen into the water, the winding machine 5 can be started to reverse and the drive motor 7 of the rope ladder conveyor frame 6 can be started to reverse. The reverse drive motor 7 can drive the conveyor wheels 10 on both sides to reverse. The reverse of the conveyor wheels 10 on both sides can drive the conveyor chains 3 on both sides through the conveyor tooth block 11 to lift, so that the person who has fallen into the water who is clinging to the main body 1 of the rescue rope ladder can be lifted synchronously and stably without climbing. The winding machine 5 can then smoothly wind up the rescue rope ladder main body 1 that is limited and wound up at the rope ladder conveyor frame 6. The guide roller 12 can guide the rescue rope ladder main body 1 and the conveyor chain 3.
[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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. Content not described in detail in this specification is prior art known to those skilled in the art.
[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.
Claims
1. A rescue rope ladder that can be quickly released and retracted, comprising a rescue rope ladder body (1), a conveyor chain (3), and a rope ladder storage rack (4), characterized in that: There are two conveyor chains (3), and the main body (1) of the rescue rope ladder is evenly and fixedly connected with connecting ropes (2). The main body (1) of the rescue rope ladder is connected to the conveyor chain (3) through the connecting ropes (2). The rope ladder storage rack (4) is fixedly equipped with a winding and unwinding machine (5) and a rope ladder conveyor (6), and one end of the rescue rope ladder body (1) is connected to the winding and unwinding machine (5); The rope ladder conveyor frame (6) is fixedly equipped with a drive motor (7), and the rope ladder conveyor frame (6) is rotatably connected with a drive rod (8). The drive end of the drive motor (7) is connected to a drive rod (8), and the drive rod (8) is fixedly connected with a transmission gear (9) and a conveyor wheel (10). The transmission gears (9) on both sides are meshed together. The conveyor wheel (10) is uniformly and fixedly installed with conveyor teeth (11) corresponding to the conveyor chain (3), and the rope ladder conveyor frame (6) is equipped with guide rollers (12). The conveyor chain (3) includes rectangular chain blocks (301) and chain ropes (302), and multiple rectangular chain blocks (301) are connected into a chain by chain ropes (302); The spacing of the rectangular chain blocks (301) is consistent with the spacing of the conveying tooth blocks (11), and the rectangular chain blocks (301) are provided with rectangular holes that are compatible with the conveying tooth blocks (11). The outer wall of the guide roller (12) is configured as a concave structure, and the width of the concave section is consistent with the spacing between the two conveyor chains (3); The main body (1) of the rescue rope ladder includes a safety rope (101), a ladder plate (102), and a connecting hoop (103). The ladder plate (102) has a through hole corresponding to the safety rope (101), and the safety rope (101) passes through the through hole. The ladder plate (102) is connected to the safety rope (101) through the connecting hoop (103).
2. The rescue rope ladder that can be quickly released and retracted according to claim 1, characterized in that, The bottom of the rope ladder storage rack (4) is provided with an entrance and exit (13) corresponding to the main body (1) of the life ladder.
3. The rescue rope ladder that can be quickly released and retracted according to claim 1, characterized in that, The bottom of the rope ladder storage rack (4) is fixedly installed with a load-bearing bracket (14).
4. A rescue rope ladder that can be quickly released and retracted according to claim 1, characterized in that, The safety rope (101) is provided in two sets, which are respectively placed on both sides of the ladder board (102), and there are two safety ropes (101) on each side.