Super high-rise rescue ladder stand
By matching the vertical plates and wedge blocks with the limiting mechanism, the problems of fixed length and complex assembly of traditional high-rise rescue ladders are solved, enabling rapid assembly and stable use, and improving rescue efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional high-rise rescue ladders have a fixed length, making them difficult to adapt to buildings of different heights. They are also complex and time-consuming to assemble, which affects rescue efficiency.
A structure was designed to match the vertical plate and wedge block with the wedge groove. Combined with the first and second limiting mechanisms, the climbing ladder unit can be quickly docked and stably connected. Through the matching of the wedge block and the wedge groove and the synergistic effect of the limiting mechanism, the rapid assembly and stable use of the climbing ladder are ensured.
It enables the rapid assembly and stable use of ladders in emergency rescues of super high-rise buildings, improving rescue efficiency and ensuring the safety of rescuers and trapped personnel.
Smart Images
Figure CN224149478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rescue ladder technology, specifically to a high-rise rescue ladder. Background Technology
[0002] With the increasing number of super high-rise buildings, the safe evacuation and rescue of people inside during emergencies such as fires and earthquakes has become a critical issue. Traditional high-rise rescue ladders have many limitations. For example, ladders of fixed length are difficult to adapt to buildings of different heights. In actual rescues, if the ladder is not long enough, it will not be able to reach the trapped people. If it is too long, it will waste resources and cause installation inconvenience. Moreover, the assembly process of traditional ladders is complicated and often requires a lot of tools and professional personnel to operate, which consumes a lot of time. In rescue scenarios where every second counts, this complicated assembly method seriously affects the efficiency of rescue. Utility Model Content
[0003] In view of the problems existing in the current high-rise rescue ladders, this utility model is proposed.
[0004] Therefore, the purpose of this utility model is to provide a high-rise rescue ladder, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A high-rise rescue ladder includes vertical plates and horizontal bars. Two vertical plates are arranged in parallel, and multiple horizontal bars are arranged sequentially from top to bottom between the two vertical plates. Both ends of the multiple horizontal bars are fixedly connected to the corresponding vertical plates. A wedge block is fixedly provided at the lower end of each vertical plate, and a wedge groove is provided at the upper end of each vertical plate. The wedge block matches the wedge groove. A cavity is provided inside the vertical plate and below the wedge groove. A first limiting mechanism is provided inside the cavity to restrict the movement of the wedge block relative to the wedge groove.
[0007] Preferably, the first limiting mechanism includes a first slider and a first locking rod. The first slider is slidably disposed inside the cavity, and the first locking rod is fixedly disposed on the upper side of the first slider. The upper end of the first locking rod extends to the outer side of the cavity. A first insertion hole is provided at the bottom of the wedge-shaped groove. The first insertion rod matches the insertion hole. A rotating rod is rotatably disposed inside the cavity and below the first slider. A cam is fixedly sleeved on the rod wall of the rotating rod. The end of the cam away from the rotating rod abuts against the lower surface of the slide plate. One end of the rotating rod extends to the outer side of the cavity. A limiting shell is fixedly disposed on the outer side of the vertical plate and below the rotating rod. A second limiting mechanism for limiting the rotation of the rotating rod is disposed inside the limiting shell.
[0008] Preferably, the second limiting mechanism includes a second slider and a second locking rod. The second slider is slidably disposed inside the limiting shell, and the second locking rod is fixedly disposed on the upper side of the second slider. The upper end of the second locking rod extends to the outer side of the limiting shell. A second insertion hole is provided on the side wall of one end of the rotating rod. One end of the second locking rod is inserted into the second insertion hole. A spring is fixedly disposed on the lower side of the second slider, and the other end of the spring is fixedly connected to the inner wall of the limiting shell.
[0009] Preferably, the cross-sections of the first slider and the cavity are both rectangular, and the sidewalls of the first slider abut against the inner wall of the cavity.
[0010] Preferably, a slide rod is fixedly provided inside the limiting shell, and one side of the second slider is movably sleeved with the slide rod.
[0011] Preferably, the surfaces of both the cam and the first slider are coated with a wear-resistant coating.
[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0013] This invention achieves rapid docking between ladder units by matching the wedge-shaped block at the lower end of the vertical plate with the wedge-shaped groove at the upper end. During assembly, simply align the wedge-shaped block of one vertical plate with the wedge-shaped groove of the other vertical plate and insert it. The operation is simple and quick, greatly saving assembly time and meeting the need for rapid ladder construction in emergency rescue scenarios.
[0014] This invention ensures the stability of the ladder after assembly by utilizing the synergistic action of the first and second limiting mechanisms. When the wedge block is inserted into the wedge groove, rotating the rotating rod causes the cam to rotate, which in turn pushes the first slider upward, causing the first locking rod to insert into the first insertion hole at the bottom of the wedge groove, thus restricting the movement of the wedge block relative to the wedge groove. Simultaneously, the spring in the second limiting mechanism pushes the second slider, causing the second locking rod to insert into the second insertion hole on the side wall of one end of the rotating rod, preventing the rotating rod from rotating accidentally and thus ensuring the reliability of the first limiting mechanism. This dual limiting design allows the ladder to withstand greater weight and external forces during use, ensuring the safety of rescuers and trapped personnel. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 This is a structural schematic diagram of an ultra-high-rise rescue ladder proposed in this utility model;
[0017] Figure 2 for Figure 1 Another structural diagram from a different perspective;
[0018] Figure 3 This is a perspective view of the limiting mechanism in this utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Vertical plate; 2. Horizontal bar; 3. Wedge block; 4. Limiting shell; 5. Spring; 6. First slider; 7. First locking rod; 8. Rotating rod; 9. Cam; 10. Second slider; 11. Second locking rod; 12. Slide rod. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0022] This utility model discloses a high-rise rescue ladder.
[0023] Reference Figure 1-3 A high-rise rescue ladder includes vertical plates 1 and horizontal bars 2. The two vertical plates 1 are arranged in parallel, and multiple horizontal bars 2 are arranged between the two vertical plates 1 from top to bottom. Both ends of the multiple horizontal bars 2 are fixedly connected to the corresponding vertical plates 1. A wedge block 3 is fixedly arranged at the lower end of the vertical plate 1. A wedge groove is opened at the upper end of the vertical plate 1. The wedge block 3 matches the wedge groove. A cavity is opened inside the vertical plate 1 and below the wedge groove. A first limiting mechanism is arranged inside the cavity to restrict the movement of the wedge block 3 relative to the wedge groove.
[0024] Reference Figure 1-3 The first limiting mechanism includes a first slider 6 and a first locking rod 7. The first slider 6 is slidably disposed inside the cavity. Both the first slider 6 and the cavity have rectangular cross-sections. The sidewalls of the first slider 6 abut against the inner wall of the cavity, preventing the first slider 6 from rotating and allowing it to slide stably. The first locking rod 7 is fixedly disposed on the upper side of the first slider 6, with its upper end extending to the outer side of the cavity. A first insertion hole is provided at the bottom of the wedge-shaped groove, and the first locking rod 7 matches the insertion hole. A rotating rod 8 is rotatably disposed inside the cavity and below the first slider 6. A cam 9 is fixedly sleeved on the rod wall of the rotating rod 8. The end of the cam 9 away from the rotating rod 8 abuts against the lower surface of the first slider 6. Both the surfaces of the cam 9 and the first slider 6 are coated with a wear-resistant coating to improve the wear resistance of the cam 9 and the second slider 6. One end of the rotating rod 8 extends to the outer side of the cavity. A limiting shell 4 is fixedly disposed on the outer side of the vertical plate 1 and below the rotating rod 8. A second limiting mechanism is disposed inside the limiting shell 4 to restrict the rotation of the rotating rod 8.
[0025] Reference Figure 1-3The second limiting mechanism includes a second slider 10 and a second locking rod 11. The second slider 10 is slidably disposed inside the limiting shell 4. The second locking rod 11 is fixedly disposed on the upper side of the second slider 10. The upper end of the second locking rod 11 extends to the outer side of the limiting shell 4. A second insertion hole is opened on the side wall of one end of the rotating rod 8. One end of the second locking rod 11 is inserted into the second insertion hole. A spring 5 is fixedly disposed on the lower side of the second slider 10. The other end of the spring 5 is fixedly connected to the inner wall of the limiting shell 4. A sliding rod 12 is fixedly disposed inside the limiting shell 4. One side of the second slider 10 is movably sleeved with the sliding rod 12, so that the second slider 6 can slide stably inside the limiting shell 4.
[0026] In this utility model, when an emergency occurs in a super high-rise building and rescue is needed, rescuers carry multiple sets of this super high-rise rescue ladder to the scene. First, the first ladder unit is placed in a suitable starting position to ensure that the vertical plate is placed stably. Then, the second ladder unit is picked up, and the wedge-shaped block at the lower end of its vertical plate is aligned with the wedge-shaped groove at the upper end of the vertical plate of the first ladder unit. It is then slowly inserted to complete the initial docking.
[0027] Next, the limiting mechanism is activated. The rescuers rotate the rotating rod 8, which drives the cam 9 to rotate. Since the end of the cam 9 away from the rotating rod 8 is in contact with the lower surface of the first slider 6, as the cam 9 rotates, the first slider 6 slides upward in the cavity. The first slider 6 drives the first locking rod 7 to move upward until the first locking rod 7 is inserted into the first insertion hole at the bottom of the wedge groove. At this time, the wedge block 3 is firmly fixed in the wedge groove, restricting the relative movement between the two vertical plates.
[0028] At the same time, the rotating rod 8 rotates to the appropriate position, releases the second slider 10, and the elastic force of the spring 5 pushes the second slider 10 to move upward, so that the second locking rod 11 is inserted into the second insertion hole on the side wall of one end of the rotating rod 8, preventing the rotating rod 8 from rotating accidentally, thereby ensuring that the first limiting mechanism remains effective.
[0029] Following the steps described above, multiple ladder units are connected sequentially. The length of the ladder is flexibly adjusted according to the floor height of the trapped person. During the climbing process, the horizontal bar 2 provides reliable foot support for the climber. The firm connection between the vertical plate 1 and the horizontal bar 2, as well as the overall stable limiting structure, ensure the safety of the ladder during use. After the rescue operation is completed, the ladder unit can be disassembled by first releasing the second limiting mechanism and then rotating the rotating rod 8 to allow the first locking rod 7 to exit from the first insertion hole, making it easy to store and transport for use in the next rescue mission.
[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. An ultra-high-rise rescue ladder comprising uprights (1) and cross-pieces (2), characterised in that, Two vertical plates (1) are arranged in parallel, and multiple horizontal bars (2) are arranged between the two vertical plates (1) from top to bottom. Both ends of the multiple horizontal bars (2) are fixedly connected to the corresponding vertical plates (1). A wedge block (3) is fixedly arranged at the lower end of the vertical plate (1). A wedge groove is opened at the upper end of the vertical plate (1). The wedge block (3) matches the wedge groove. A cavity is opened inside the vertical plate (1) and below the wedge groove. A first limiting mechanism is provided inside the cavity to restrict the movement of the wedge block (3) relative to the wedge groove.
2. The super high reach rescue ladder according to claim 1, wherein, The first limiting mechanism includes a first slider (6) and a first locking rod (7). The first slider (6) is slidably disposed inside the cavity. The first locking rod (7) is fixedly disposed on the upper side of the first slider (6). The upper end of the first locking rod (7) extends to the outer side of the cavity. A first insertion hole is provided at the bottom of the wedge-shaped groove. The first locking rod (7) matches the insertion hole. A rotating rod (8) is rotatably disposed inside the cavity and below the first slider (6). A cam (9) is fixedly sleeved on the rod wall of the rotating rod (8). The end of the cam (9) away from the rotating rod (8) abuts against the lower surface of the first slider (6). One end of the rotating rod (8) extends to the outer side of the cavity. A limiting shell (4) is fixedly disposed on the outer side of the vertical plate (1) and below the rotating rod (8). A second limiting mechanism for limiting the rotation of the rotating rod (8) is disposed inside the limiting shell (4).
3. The super high reach rescue ladder according to claim 2, wherein, The second limiting mechanism includes a second slider (10) and a second locking rod (11). The second slider (10) is slidably disposed inside the limiting shell (4). The second locking rod (11) is fixedly disposed on the upper side of the second slider (10). The upper end of the second locking rod (11) extends to the outer side of the limiting shell (4). A second insertion hole is provided on the side wall of one end of the rotating rod (8). One end of the second locking rod (11) is inserted into the second insertion hole. A spring (5) is fixedly disposed on the lower side of the second slider (10). The other end of the spring (5) is fixedly connected to the inner wall of the limiting shell (4).
4. The super tower rescue ladder according to claim 2, wherein, The first slider (6) and the cavity have rectangular cross-sections, and the sidewalls of the first slider (6) abut against the inner wall of the cavity.
5. The super tower rescue ladder according to claim 3, wherein, The limiting shell (4) is fixedly provided with a slide rod (12), and one side of the second slider (10) is movably connected to the slide rod (12).
6. The super tower rescue ladder according to claim 2, wherein, The surfaces of the cam (9) and the first slider (6) are coated with a wear-resistant coating.