A self-rescue escape device for a ladder

By designing a self-rescue and escape device for climbing ladders, and utilizing a support platform and connecting components to slide with the ladder, the stability problem of hoisting rescue in non-vertical wells is solved, achieving a fast and safe self-rescue and escape effect.

CN224363877UActive Publication Date: 2026-06-16CHINA CONSTR THIRD ENG BUREAU GRP SOUTH CHINA CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR THIRD ENG BUREAU GRP SOUTH CHINA CO LTD
Filing Date
2025-06-06
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In confined space operation accidents, existing technologies are insufficient to quickly and rescuing trapped personnel from ladders, especially in non-vertical wells, where hoisting with winches may cause secondary injuries to the injured.

Method used

A self-rescue escape device was designed, comprising a support platform, support rollers, mounting frame, connecting components, and rope hooks. The device slides with a ladder via the connecting components, and uses a winch to lift the support platform to safely rescue the injured. The device also improves the lifting stability through guide and positioning components.

Benefits of technology

It enables the rapid and stable hoisting and rescue of the injured from the ladder in non-vertical wells, avoiding secondary injuries and improving the safety and efficiency of self-rescue and escape.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-rescue escape device for ladder stand, including bearing platform, the side of bearing platform is rotatably installed to the support gyro wheel, the side of the top of bearing platform is fixedly installed to the mounting bracket, the backrest plate is fixedly connected on the mounting bracket, the connecting component is installed to one side of mounting bracket, the connecting component is used for sliding connection with the ladder stand, the rope hook is fixedly connected on the mounting bracket, the rope hook is used for with external winch rope connection, the auxiliary rope hook is fixedly connected on the mounting bracket, and the auxiliary rope hook is used for with external anti -faller auxiliary rope connection. The utility model discloses the cooperation use mode of bearing platform, support gyro wheel, mounting bracket and connecting component, and bearing platform can be slidably arranged on the side of ladder stand through connecting component, thereby through winch to the hoisting of bearing platform, can directly hoist and rescue from the vicinity of ladder stand of the wounded, and under the action of connecting component, can improve the stability of the hoisting of the wounded.
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Description

Technical Field

[0001] This utility model relates to the field of escape devices, and in particular to a self-rescue escape device for climbing ladders. Background Technology

[0002] With the increasing number of large-scale factory buildings, high-end hospitals, and deep-foundation pit super high-rise commercial and residential construction projects, there are also more and more places where confined space operations are carried out. Due to the complex and changeable construction environment of confined spaces, the high difficulty of detection, the uneven safety awareness and execution of construction personnel, and the hidden and sudden nature of confined space operation accidents, confined space operation accidents occur from time to time.

[0003] When an emergency occurs, rapid self-rescue and escape are the best rescue methods. Although construction workers have received professional safety briefings and emergency drills on first aid measures, due to different levels of accidents and varying degrees of injury to the trapped individuals, when the trapped individuals cannot use protective equipment or climb ladders to escape through restricted openings, winches and hoists are usually used to hoist the injured from the ladder side of the well for rescue. However, there are limitations to the use of winches for rescue. Not only does the well with the ladder need to be a vertical well, but when hoisting the injured, the hoist may sway, causing secondary injuries to the injured and thus affecting their self-rescue.

[0004] Therefore, a self-rescue escape device for climbing ladders is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a self-rescue and escape device for climbing ladders, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-rescue and escape device for climbing ladders, comprising:

[0007] Platform;

[0008] Support rollers are rotatably mounted on the side of the support platform;

[0009] Mounting bracket, which is fixedly installed on the side of the top of the bearing platform;

[0010] Backrest panel, which is fixedly connected to the mounting bracket;

[0011] A connecting component, which is mounted on one side of the mounting bracket and is used for sliding connection with a ladder;

[0012] A rope hook is fixedly connected to the mounting frame and is used to connect to an external winch rope.

[0013] Preferred options also include:

[0014] An auxiliary rope hook is fixedly connected to the mounting frame and is used to connect to an external fall arrestor auxiliary rope.

[0015] Handrail, which is fixedly connected to the side of the support platform and the mounting frame.

[0016] Preferably, the connection component includes:

[0017] Mounting plate, which is fixedly connected to one side of the mounting frame;

[0018] A guide assembly is disposed on one side of the mounting plate and is used for sliding connection with the ladder.

[0019] Preferably, the connection component further includes:

[0020] A bidirectional screw, which is disposed on one side of the mounting plate, is used to adjust the distance between adjacent guide components;

[0021] A positioning component is disposed between the bidirectional screw and the mounting plate.

[0022] Preferably, the guiding component includes:

[0023] The first mounting component is disposed on one side of the mounting plate;

[0024] A bracket and guide rollers, wherein the guide rollers are rotatably mounted inside the first mounting component via the bracket.

[0025] Preferably, the guiding component further includes:

[0026] A guide rail, which is fixedly connected to one side of the mounting plate;

[0027] A connecting seat is fixedly connected to the side of the first mounting component facing the mounting plate, and the connecting seat is slidably connected to the outside of the guide rail. A threaded hole matching the bidirectional screw is opened in the middle of one side of the connecting seat.

[0028] Preferably, the guiding component includes:

[0029] The second mounting component is disposed on one side of the mounting plate;

[0030] A bracket and guide rollers, wherein the guide rollers are rotatably mounted on the inner side of the second mounting component via the bracket.

[0031] Preferably, the positioning component includes:

[0032] A positioning block is disposed on one side of the mounting plate, and the middle part of the outer wall of the bidirectional screw is rotatably connected to the positioning block;

[0033] A handle plate, wherein the handle plate is disposed on one side of the positioning block;

[0034] A positioning rod is provided, one end of which is fixedly connected to the handle plate. The positioning block has symmetrical mounting holes on one side corresponding to the positioning rod, and the mounting plate has a positioning groove in the middle of one side that matches the positioning rod.

[0035] Preferably, the positioning component further includes:

[0036] A retaining collar is fixedly sleeved on the outside of the positioning rod;

[0037] A limiting collar is fixedly sleeved on one end of the inner cavity of the mounting hole, and the outer wall of the positioning rod is slidably sleeved with the limiting collar.

[0038] A limiting spring is slidably sleeved on the outside of the positioning rod, and the limiting spring is located between the limiting collar and the fixing collar.

[0039] The technical effects and advantages of this utility model are as follows:

[0040] This utility model utilizes the combined use of a carrying platform, supporting rollers, mounting frame, and connecting components. The carrying platform can be slidably mounted on one side of the ladder via the connecting components, allowing a winch to lift the carrying platform and directly rescue the injured person from near the ladder. Furthermore, the connecting components enhance the stability of the rescue during the lifting process. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0042] Figure 2 This is a schematic diagram of the overall structure of the mounting plate of this utility model;

[0043] Figure 3 This is a schematic diagram of the overall structure of the first mounting component of this utility model;

[0044] Figure 4 This is a schematic diagram of the internal structure of the positioning block on the side of this utility model;

[0045] Figure 5 This is a schematic diagram of the overall structure of the first mounting component of this utility model.

[0046] In the diagram: 1. Supporting platform; 2. Supporting rollers; 3. Mounting bracket; 4. Backrest panel; 5. Connecting assembly; 51. Mounting plate; 52. Guide assembly; 521. First mounting component; 522. Bracket; 523. Guide rollers; 524. Guide rail; 525. Connecting seat; 526. Threaded hole; 527. Second mounting component; 53. Bidirectional screw; 54. Positioning assembly; 541. Positioning block; 542. Positioning rod; 543. Handle plate; 544. Fixing collar; 545. Limiting collar; 546. Limiting spring; 6. Rope hook; 7. Auxiliary rope hook; 8. Handrail. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] Example 1

[0049] This utility model provides, for example Figure 1-4 The self-rescue escape device for climbing ladders shown includes a support platform 1, support rollers 2, a mounting frame 3, a backrest 4, a connecting component 5, a rope hook 6, an auxiliary rope hook 7, and a handrail 8. The support rollers 2 are rotatably mounted on the side of the support platform 1, allowing the platform 1 to move on the ground for the transport of injured persons. A cushion bag can be stored on the support platform 1, and the cushion bag contains a rubber emergency escape respirator. The mounting frame 3 is fixedly mounted on the top side of the support platform 1. The backrest 4 is fixedly connected to the mounting frame 3. The connecting component 5 is mounted on one side of the mounting frame 3. Used for sliding connection with the ladder, allowing the carrying platform 1 to move along the ladder's trajectory within the wellhead, thereby enabling the carrying platform 1 to carry the injured out and achieve self-rescue of the injured. The rope hook 6 is fixedly connected to the mounting frame 3 and is used to connect with the external winch rope. The auxiliary rope hook 7 is fixedly connected to the mounting frame 3 and is used to connect with the auxiliary rope of the external fall arrestor. That is, a winch and a fall arrestor are installed at the wellhead, and the rope on the winch and the auxiliary rope on the fall arrestor are respectively connected to the rope hook 6 and the auxiliary rope hook 7 for hoisting the carrying platform 1. The handrail 8 is fixedly connected to the side of the carrying platform 1 and the mounting frame 3.

[0050] In particular, the connecting assembly 5 includes a mounting plate 51, a guide assembly 52, a bidirectional screw 53, and a positioning assembly 54. The mounting plate 51 is fixedly connected to one side of the mounting frame 3. The guide assembly 52 is disposed on one side of the mounting plate 51 and is used to slide with the ladder. The bidirectional screw 53 is disposed on one side of the mounting plate 51 and is used to adjust the distance between adjacent guide assemblies 52. That is, under the action of the bidirectional screw 53, the two guide assemblies 52 can move relative to each other or away from each other, thereby causing the two guide assemblies 52 to slide and engage on both sides of the ladder, thereby guiding and limiting the bearing platform 1. The positioning assembly 54 is disposed between the bidirectional screw 53 and the mounting plate 51 and can ensure the stability of the bidirectional screw 53 installed on one side of the mounting plate 51.

[0051] Specifically, the guide assembly 52 includes a first mounting member 521, a bracket 522, and a guide roller 523. The first mounting member 521 is disposed on one side of the mounting plate 51, and the guide roller 523 is rotatably mounted inside the first mounting member 521 via the bracket 522. Figure 3 As shown, the first mounting component 521 has a C-shaped cross-section. Guide rollers 523 are installed on the three sides of the interior of the first mounting component 521, so that the guide rollers 523 inside the first mounting component 521 can be clamped on the three surfaces of the ladder side, thereby ensuring the stability of the bearing platform 1 connected to one side of the ladder. The first mounting component 521 is suitable for ladders without fixed parts or obstructions on both sides, so that it will not affect the sliding of the first mounting component 521 on both sides of the ladder.

[0052] Furthermore, the guide assembly 52 also includes a guide rail 524 and a connecting seat 525. The guide rail 524 is fixedly connected to one side of the mounting plate 51, and the connecting seat 525 is fixedly connected to the side of the first mounting member 521 facing the mounting plate 51. The connecting seat 525 is slidably connected to the outside of the guide rail 524. A threaded hole 526 matching the bidirectional screw 53 is provided in the middle of one side of the connecting seat 525. By rotating the bidirectional screw 53, the two connecting seats 525 can slide synchronously relative to or opposite to each other on the guide rail 524, thereby allowing the first mounting member 521 to be installed on both sides of the ladder, or to separate the first mounting member 521 from the ladder.

[0053] Furthermore, the positioning assembly 54 includes a positioning block 541, a handle plate 543, and a positioning rod 542. The positioning block 541 is disposed on one side of the mounting plate 51. The middle part of the outer wall of the bidirectional screw 53 is rotatably connected to the positioning block 541. The handle plate 543 is disposed on one side of the positioning block 541. One end of the positioning rod 542 is fixedly connected to the handle plate 543. A mounting hole corresponding to the positioning rod 542 is symmetrically opened on one side of the positioning block 541. A positioning groove matching the positioning rod 542 is opened in the middle of one side of the mounting plate 51. The positioning assembly 54 also includes a fixing collar 544, a limiting collar 545, and a limiting spring 546. The fixing collar 544 is fixedly sleeved on the outside of the positioning rod 542. 545 is fixedly sleeved at one end of the mounting hole cavity. The outer wall of the positioning rod 542 is slidably sleeved with the limiting collar 545. The limiting spring 546 is slidably sleeved on the outside of the positioning rod 542. The limiting spring 546 is located between the limiting collar 545 and the fixed collar 544. The limiting spring 546 can give the positioning rod 542 a spring force towards the mounting plate 51 through the fixed collar 544, thereby ensuring the stability of the positioning rod 542 and the mounting plate 51, and thus limiting the bidirectional screw 53. By using the handle plate 543 to drive the positioning rod 542 to slide and separate from the mounting plate 51, the connecting seat 525 can drive the bidirectional screw 53 to separate from the guide rail 524, and the first mounting part 521 can be disassembled and replaced.

[0054] Example 2

[0055] Unlike Example 1, as Figure 5 As shown, the guide assembly 52 includes a second mounting member 527, a bracket 522, and guide rollers 523. The second mounting member 527 is disposed on one side of the mounting plate 51. The guide rollers 523 are rotatably mounted on the inner side of the second mounting member 527 via the bracket 522. The second mounting member 527 is L-shaped. Guide rollers 523 are installed on both sides of the second mounting member 527, so that the guide rollers 523 on the second mounting member 527 fit against the sides and front of the ladder, thereby guiding the carrying platform 1. The second mounting member 527 is suitable for the two sides of the back of the ladder and the inner wall of the well where there are fixed partitions.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-rescue escape device for climbing ladders, characterized in that, include: Platform (1); Support roller (2), which is rotatably mounted on the side of the bearing platform (1); Mounting bracket (3), which is fixedly installed on the side of the top of the bearing platform (1); Backrest panel (4), which is fixedly connected to the mounting bracket (3); A connecting component (5) is mounted on one side of the mounting bracket (3) and is used for sliding connection with the ladder; A rope hook (6) is fixedly connected to the mounting frame (3) and is used to connect to an external winch rope.

2. The self-rescue and escape device for climbing ladders according to claim 1, characterized in that, Also includes: Auxiliary rope hook (7) is fixedly connected to the mounting frame (3) and is used to connect with the auxiliary rope of the external fall arrester. Handrail (8) is fixedly connected to the side of the support platform (1) and the mounting frame (3).

3. A self-rescue and escape device for climbing ladders according to claim 1, characterized in that, The connection component (5) includes: Mounting plate (51), which is fixedly connected to one side of mounting bracket (3); A guide assembly (52) is disposed on one side of the mounting plate (51) and is used for sliding connection with the ladder.

4. A self-rescue and escape device for climbing ladders according to claim 3, characterized in that, The connection component (5) further includes: A bidirectional screw (53) is disposed on one side of the mounting plate (51), and the bidirectional screw (53) is used to adjust the distance between adjacent guide components (52); A positioning component (54) is disposed between a bidirectional screw (53) and a mounting plate (51).

5. A self-rescue and escape device for climbing ladders according to claim 4, characterized in that, The guide component (52) includes: The first mounting component (521) is disposed on one side of the mounting plate (51); A bracket (522) and a guide roller (523) are provided, wherein the guide roller (523) is rotatably mounted inside the first mounting member (521) via the bracket (522).

6. A self-rescue and escape device for climbing ladders according to claim 5, characterized in that, The guide component (52) further includes: Guide rail (524), which is fixedly connected to one side of mounting plate (51); A connecting seat (525) is fixedly connected to the side of the first mounting member (521) facing the mounting plate (51). The connecting seat (525) is slidably connected to the outside of the guide rail (524). A threaded hole (526) matching the bidirectional screw (53) is opened in the middle of one side of the connecting seat (525).

7. A self-rescue and escape device for climbing ladders according to claim 4, characterized in that, The guide component (52) includes: The second mounting member (527) is disposed on one side of the mounting plate (51); The bracket (522) and guide roller (523) are rotatably mounted on the inner side of the second mounting member (527) via the bracket (522).

8. A self-rescue and escape device for climbing ladders according to claim 4, characterized in that, The positioning component (54) includes: Positioning block (541), the positioning block (541) is disposed on one side of the mounting plate (51), and the middle part of the outer wall of the bidirectional screw (53) is rotatably connected to the positioning block (541); A handle plate (543) is disposed on one side of the positioning block (541); The positioning rod (542) is fixedly connected to the handle plate (543) at one end. The positioning block (541) has symmetrical mounting holes corresponding to the positioning rod (542) on one side. The mounting plate (51) has a positioning groove matching the positioning rod (542) in the middle of one side.

9. A self-rescue escape device for climbing ladders according to claim 8, characterized in that, The positioning component (54) further includes: A retaining collar (544) is fixedly sleeved on the outside of the positioning rod (542); A limiting collar (545) is fixedly sleeved on one end of the inner cavity of the mounting hole, and the outer wall of the positioning rod (542) is slidably sleeved with the limiting collar (545). A limiting spring (546) is slidably sleeved on the outside of the positioning rod (542), and the limiting spring (546) is located between the limiting collar (545) and the fixing collar (544).