Telescopic underground emergency escape ladder
By designing a retractable underground emergency escape ladder with a rotating rod and an anti-fall mechanism, the problems of rapid extension and stable use in existing technologies have been solved, achieving the effects of rapid storage and safe escape.
Patent Information
- Application Number
- CN202520696867.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2035-04-14
AI Technical Summary
Existing retractable underground emergency escape ladders cannot be quickly extended or retracted in emergency situations, delaying rescue time. They are also inconvenient to transport, occupy a large space, and are difficult to store, resulting in reduced safety and reliability and failing to effectively play their role in ensuring safety.
A telescopic emergency escape ladder for underground use was designed, comprising a base, a main ladder, an auxiliary ladder, a telescopic mechanism, and an anti-fall-off mechanism. The auxiliary ladder can be quickly extended and retracted through a rotating rod and a reset assembly, and L-shaped plates and springs are used to prevent it from falling off, ensuring stable use of the ladder underground.
It enables the rapid storage and stable use of the auxiliary ladder, reduces storage space requirements, improves escape safety and rescue efficiency, and avoids risks caused by shaking or falling.
Smart Images
Figure CN224017148U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to underground safety escape ladder technical field especially relates to telescopic underground emergency escape ladder. BACKGROUND
[0002] In the coal mine, metal mine, nonmetallic mine and other mining industries, and tunnel, subway and other underground engineering construction sites, in these scenes, once fire, explosion, water inrush and other disasters occur, the escape ladder can be quickly unfolded, providing a safe and fast escape channel for underground workers or trapped personnel.
[0003] In the prior art, part of the telescopic underground emergency escape ladder adopts high-strength lightweight material, and the intelligent design is gradually becoming a trend, equipped with sensors and control system, improving safety and convenience, quickly unfolding into an escape channel in the mine, tunnel, when disaster occurs, ensuring personnel to evacuate quickly, avoiding disaster expansion, reducing casualties and losses, and is a reliable guarantee for underground safety protection and emergency rescue.
[0004] But in the specific use process, the underground escape ladder cannot be quickly telescoped, which will seriously delay the use time in emergency, affect the rescue efficiency, lead to serious consequences, and the inconvenient carrying will increase the transportation difficulty and time cost, which is not conducive to timely deployment to the required position, and the storage difficulty will make the ladder occupy too much space, or be damaged due to improper storage, reduce the service life and reliability, and it is difficult to meet the underground emergency escape demand, and it cannot effectively play its safety protection role, which lays hidden dangers for underground operation safety, and the above problems are proposed, and the telescopic underground emergency escape ladder is proposed. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a telescopic underground emergency escape ladder, which aims at improving some problems in the prior art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] The telescopic underground emergency escape ladder comprises a base, the outer part of the base is fixedly connected with a main ladder, the inner part of the main ladder is provided with a sliding groove, the outer part of the sliding groove is slidably connected with a secondary ladder, the outer part of the secondary ladder is fixedly connected with a telescopic mechanism, the outer part of the secondary ladder is fixedly connected with an anti-falling mechanism, and the inner part of the main ladder is fixedly connected with a plurality of limiting blocks.
[0008] The telescopic mechanism comprises a rotating rod, the outer part of the rotating rod is fixedly connected with a reset assembly, the outer part of the rotating rod is rotatably connected with a fixed rod, the outer part of the fixed rod is fixedly connected with a follow-up ring, the outer part of the follow-up ring is fixedly connected with a connecting plate, the other end of the connecting plate is fixedly connected with a follow-up block, the outer part of the follow-up block is slidably connected with the outer part of the limiting block, and the outer part of the rotating rod is rotatably connected with the inner part of the main ladder;
[0009] As a further description of the above technical solution:
[0010] The reset assembly comprises a follow-up plate, the outer part of the follow-up plate is slidably connected with the outer part of the follow-up ring, and the other end of the follow-up plate is fixedly connected with the outer part of the rotating rod;
[0011] As a further description of the above technical solution:
[0012] The anti-falling mechanism comprises an L-shaped plate, the outer part of the L-shaped plate is fixedly connected with an anti-skid pad, the outer part of the auxiliary ladder is fixedly connected with a connecting plate, the outer part of the connecting plate is fixedly connected with a plurality of telescopic rods, the outer part of the telescopic rod is fixedly connected with a spring, the outer part of the telescopic rod is fixedly connected with a fixed plate, and the outer part of the L-shaped plate is fixedly connected with the outer part of the auxiliary ladder;
[0013] As a further description of the above technical solution:
[0014] The outer part of the auxiliary ladder is slidably connected with the inner part of the main ladder, and the top of the auxiliary ladder is fixedly connected with the outer part of the L-shaped plate;
[0015] As a further description of the above technical solution:
[0016] The outer part of the main ladder is fixedly connected with a plurality of main stepping plates, and the other side of the main ladder is fixedly connected with a plurality of main stepping plates;
[0017] As a further description of the above technical solution:
[0018] One end of the spring is fixedly connected with a fixed plate, and the other end of the spring is fixedly connected with the outer part of the telescopic rod;
[0019] As a further description of the above technical solution:
[0020] The outer part of the auxiliary ladder is slidably connected with the outer part of the main ladder, and the top of the auxiliary ladder is fixedly connected with the outer part of the L-shaped plate;
[0021] As a further description of the above technical solution:
[0022] The outer part of the limiting block is fixedly connected with the inner part of the main ladder, and the other end of the limiting block is slidably connected with the outer part of the follow-up block.
[0023] The utility model has the advantages of the following:
[0024] 1. In the utility model, the sub-ladder is slid in the sliding groove by pushing the sub-treadle, the connecting plate is driven to move by the fixed rod, when reaching the appropriate height, the rotating rod drives the follow-up plate to be fixed, when needing to retract, the follow-up plate is pushed to drive the rotating rod to move, the sub-ladder is automatically retracted, and the significant storage convenience is exhibited in the carrying process, the ladder can be quickly retracted to a compact state only by pushing the sub-ladder plate, and the compact storage state reduces the requirement for storage space.
[0025] 2. In the utility model, the L-shaped plate is clamped at the well side, the telescopic rod is driven to move by the fixed plate, the spring drives the connecting plate to move, so that the emergency escape ladder can be fixed at the well side firmly, falling and shaking are effectively prevented, the risk caused by shaking or falling of the ladder is avoided, and the safety and stability of escape are greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 It is a three-dimensional schematic view of the telescopic underground emergency escape ladder provided by the utility model;
[0027] Figure 2 It is a structural schematic view of the sub-ladder of the telescopic underground emergency escape ladder provided by the utility model;
[0028] Figure 3 It is a structural schematic view of the sub-treadle of the telescopic underground emergency escape ladder provided by the utility model;
[0029] Figure 4 It is a structural schematic view of the main ladder of the telescopic underground emergency escape ladder provided by the utility model;
[0030] Figure 5 It is an enlarged view of position A in the utility model; Figure 3
[0031] Figure 6 It is an enlarged view of position B in the utility model. Figure 4
[0032] Legend:
[0033] 1, base; 2, main ladder; 3, sliding groove; 4, sub-ladder; 5, sub-treadle; 6, main treadle one; 7, main treadle two; 8, rotating rod; 9, follow-up plate; 10, fixed rod; 11, follow-up ring; 12, connecting plate; 13, follow-up block; 14, limiting block; 15, L-shaped plate; 16, non-slip pad; 17, connecting plate; 18, telescopic rod; 19, spring; 20, fixed plate. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0035] With reference to Figure 1 , Figure 3 , Figure 5 The utility model provides an embodiment: telescopic underground emergency escape ladder, including base 1, base 1 is circular or polygonal plate structure, and the bottom is relatively flat to enhance the stability of placing. Its characterized in that: the outside fixed connection of base 1 has main ladder 2, the inside of main ladder 2 is set up with sliding slot 3, and main ladder 2 is hollow cuboid structure, has certain height and length, and the hollow part in its inside forms the installation space of sliding slot 3. The outside sliding connection of sliding slot 3 has auxiliary ladder 4, and auxiliary ladder 4 is also cuboid structure, and the width is slightly less than the opening width of sliding slot 3, so that auxiliary ladder 4 can slide up and down in sliding slot 3 and will not be separated. The outside fixed connection of auxiliary ladder 4 has telescopic mechanism, the outside fixed connection of auxiliary ladder 4 has anti -drop mechanism, and the inside fixed connection of main ladder 2 has a plurality of limit blocks 14;
[0036] The telescopic mechanism includes rotating rod 8, the outside fixed connection of rotating rod 8 has reset component, the outside rotary connection of rotating rod 8 has fixed rod 10, the outside fixed connection of fixed rod 10 has follow -up ring 11, and follow -up ring 11 is circular ring structure, and the outer diameter is matched with the outer diameter of fixed rod 10, and follow -up ring 11 rotates synchronously with fixed rod 10. The outside fixed connection of follow -up ring 11 has connecting plate 12, the other end fixed connection of connecting plate 12 has follow -up block 13, the outside sliding connection of follow -up block 13 in the outside of limit block 14, and limit block 14 is fixed in the inner wall of main ladder 2 at intervals, and is cuboid convex, and its function is to limit the movement of follow -up block 13. The outside rotary connection of rotating rod 8 in the inside of main ladder 2, and rotating rod 8 is cylindrical structure, and can rotate around its axis. The reset component includes follow -up plate 9, the outside sliding connection of follow -up plate 9 in the outside of follow -up ring 11, and the other end fixed connection of follow -up plate 9 in the outside of rotating rod 8;
[0037] With reference to Figure 2 , Figure 4 , Figure 6The anti-falling mechanism comprises an L-shaped plate 15, which is overall in a right-angle bending shape, one side of which is longer and parallel to the auxiliary ladder 4, and the other side of which is shorter and perpendicular to the longer side. The outer part of the L-shaped plate 15 is fixedly connected with a non-slip pad 16, which is in the shape of a rectangular rubber pad and has certain textures on the surface to increase the friction. The outer part of the auxiliary ladder 4 is fixedly connected with an adapter plate 17, the outer part of the adapter plate 17 is fixedly connected with a plurality of telescopic rods 18, which are in the shape of cylinders, uniformly distributed on the adapter plate 17 and perpendicular to the adapter plate 17, and can perform telescopic movement along their own axes. The outer part of the telescopic rod 18 is fixedly connected with a spring 19, which is in the shape of a spiral elastic structure, sleeved on the outer part of the telescopic rod 18, one end of which is fixedly connected with the adapter plate 17, and the other end of which is fixedly connected with a fixed plate 20.
[0038] The outer part of the telescopic rod 18 is fixedly connected with the fixed plate 20, the outer part of the L-shaped plate 15 is fixedly connected to the outer part of the auxiliary ladder 4, the outer part of the auxiliary ladder 4 is fixedly connected with a plurality of auxiliary steps 5, the outer part of the auxiliary ladder 4 is slidingly connected to the inner part of the main ladder 2, the outer part of the main ladder 2 is fixedly connected with a plurality of main steps one 6, the other side of the main ladder 2 is fixedly connected with a plurality of main steps two 7, which are also spaced along the height direction of the main ladder 2 and correspond to the main steps one 6, and are similar in structure and shape, in the shape of rectangular plates and recessed towards the inner part of the main ladder 2, providing climbing steps for the other side of the main ladder 2. One end of the spring 19 is fixedly connected with the fixed plate 20, the other end of the spring 19 is fixedly connected to the outer part of the telescopic rod 18, the outer part of the auxiliary ladder 4 is slidingly connected to the outer part of the main ladder 2, the top of the auxiliary ladder 4 is fixedly connected to the outer part of the L-shaped plate 15, the outer part of the limiting block 14 is fixedly connected to the inner part of the main ladder 2, and the other end of the limiting block 14 is slidingly connected to the outer part of the follower block 13.
[0039] Working principle: in the initial state, the auxiliary ladder 4 is retracted in the main ladder 2, when the auxiliary ladder 4 is needed, the rotating rod 8 is rotated, the fixed rod 10 is rotated, the fixed rod 10 rotates the follower ring 11, the follower ring 11 drives the follower block 13 to slide along the outer part of the limiting block 14 through the connecting plate 12, due to the limitation of the limiting block 14, the follower block 13 can only move in a certain direction, so that the auxiliary ladder 4 slides downward in the sliding groove 3 and extends out of the main ladder 2, until the appropriate length is reached, to ensure that the device can be normally and repeatedly used, when the auxiliary ladder 4 is not needed, the follower plate 9 is pushed, the auxiliary ladder 4 slides upward along the sliding groove 3 and retracts into the main ladder 2, improving the practicability of the escape ladder and providing a powerful guarantee for emergency rescue operations.
[0040] By clamping the L-shaped plate 15 at the well side, the fixed plate 20 drives the telescopic rod 18 to move, and the spring 19 moves the abutment plate 17, and the anti-skid pad 16 on the L-shaped plate 15 increases the friction force, so that the auxiliary ladder 4 can be prevented from sliding during the pulling process; meanwhile, the limiting block 14 on the main ladder 2 limits the following block 13, so that the auxiliary ladder 4 can only slide in a certain direction, avoiding the auxiliary ladder 4 from shaking or separating from the main ladder 2, thereby ensuring that the staff safely climbs up and down through the auxiliary ladder 4, and the auxiliary ladder 4 can be pushed back into the main ladder 2 when not in use.
[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.
Claims
1. A retractable underground emergency escape ladder, comprising a base (1), characterized in that: The base (1) is fixedly connected to the outside of a main ladder (2), the inside of the main ladder (2) is provided with a sliding groove (3), the outside of the sliding groove (3) is slidably connected to a secondary ladder (4), the outside of the secondary ladder (4) is fixedly connected to a telescopic mechanism, the outside of the secondary ladder (4) is fixedly connected to an anti-falling mechanism, and the inside of the main ladder (2) is fixedly connected to multiple limiting blocks (14). The telescopic mechanism includes a rotating rod (8), a reset assembly is fixedly connected to the outside of the rotating rod (8), a fixed rod (10) is rotatably connected to the outside of the rotating rod (8), a follower ring (11) is fixedly connected to the outside of the fixed rod (10), a connecting plate (12) is fixedly connected to the outside of the follower ring (11), a follower block (13) is fixedly connected to the other end of the connecting plate (12), the follower block (13) is slidably connected to the outside of the limiting block (14), and the rotating rod (8) is rotatably connected to the inside of the main ladder (2).
2. The retractable underground emergency escape ladder according to claim 1, characterized in that: The reset assembly includes a follower plate (9), the outside of which is slidably connected to the outside of the follower ring (11), and the other end of which is fixedly connected to the outside of the rotating rod (8).
3. The retractable underground emergency escape ladder according to claim 2, characterized in that: The anti-fall mechanism includes an L-shaped plate (15), an anti-slip pad (16) is fixedly connected to the outside of the L-shaped plate (15), a connecting plate (17) is fixedly connected to the outside of the auxiliary ladder (4), a plurality of telescopic rods (18) are fixedly connected to the outside of the connecting plate (17), a spring (19) is fixedly connected to the outside of the telescopic rods (18), and a fixing plate (20) is fixedly connected to the outside of the telescopic rods (18). The L-shaped plate (15) is fixedly connected to the outside of the auxiliary ladder (4).
4. The retractable underground emergency escape ladder according to claim 2, characterized in that: The auxiliary ladder (4) is fixedly connected to the outside of a plurality of auxiliary steps (5), and the auxiliary ladder (4) is slidably connected to the inside of the main ladder (2).
5. The retractable underground emergency escape ladder according to claim 4, characterized in that: The main ladder (2) is fixedly connected to the outside of a plurality of main steps (6), and the other side of the main ladder (2) is fixedly connected to a plurality of main steps (7).
6. The retractable underground emergency escape ladder according to claim 3, characterized in that: One end of the spring (19) is fixedly connected to a fixing plate (20), and the other end of the spring (19) is fixedly connected to the outside of the telescopic rod (18).
7. The retractable underground emergency escape ladder according to claim 6, characterized in that: The external part of the auxiliary ladder (4) is slidably connected to the outside of the main ladder (2), and the top of the auxiliary ladder (4) is fixedly connected to the outside of the L-shaped plate (15).
8. The retractable underground emergency escape ladder according to claim 3, characterized in that: The limiting block (14) is fixedly connected to the outside of the main ladder (2), and the other end of the limiting block (14) is slidably connected to the outside of the follower block (13).