A ladder truck mounting bracket for high-rise fire rescue

By designing a hollow support platform and protective bracket for the ladder truck, and using an internal linear motor to drive the movable inner ladder closer to the building structure, the gap problem between the ladder truck platform and the building structure is solved, improving the efficiency and safety of high-rise fire rescue.

CN224313205UActive Publication Date: 2026-06-02ZIJIN COUNTY FIRE RESCUE BRIGADE (ZIJIN COUNTY FIRE RESCUE BUREAU)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZIJIN COUNTY FIRE RESCUE BRIGADE (ZIJIN COUNTY FIRE RESCUE BUREAU)
Filing Date
2025-08-05
Publication Date
2026-06-02

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  • Figure CN224313205U_ABST
    Figure CN224313205U_ABST
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Abstract

This utility model discloses a fixed support bracket for a ladder truck used in high-rise fire rescue, belonging to the field of fire-fighting equipment technology. It includes: a hollow support platform for connecting and fixing to the power arm of the ladder truck for high-rise fire rescue; a protective bracket connected to the top of the support platform for protecting items and personnel on the platform; a movable inner ladder located inside the support platform, with an inner linear motor horizontally mounted on the inner wall of the support platform, the moving part of which is connected and fixed to the movable inner ladder; and a protective bracket including three auxiliary frames, each bolted to the top of the support platform. Two of the auxiliary frames have movable frames rotatably connected to their sides, and multiple protective plates are welded to the inner walls of both the movable frames and the auxiliary frames. This fixed support bracket for a ladder truck used in high-rise fire rescue not only extends the movable inner ladder for support but also provides protective obstruction.
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Description

Technical Field

[0001] This utility model belongs to the field of fire protection equipment technology, and in particular, it is a fixed bracket for a ladder truck used for high-rise fire rescue. Background Technology

[0002] Aerial ladder fire trucks are equipped with hydraulic lifting platforms, allowing firefighters to ascend to fight fires in high-rise buildings, tall facilities, oil tanks, etc., rescue trapped personnel, salvage valuable materials, and complete other rescue missions. The truck is equipped with a telescopic ladder, which can include a lifting bucket turntable and fire extinguishing equipment, enabling firefighters to ascend for firefighting and rescue operations, making it suitable for fighting fires in high-rise buildings. In actual rescue operations, because the building structure and platform need to be protected, the platform cannot be flush against the building structure, leaving a certain gap. However, trapped personnel are often in a state of panic, and this design can affect the effectiveness of the rescue.

[0003] A search revealed a Chinese patent document (authorization announcement number CN220618353U) regarding a fixed platform for a fire truck ladder. The platform includes a frame, with a first slide and a second slide slidably mounted on the upper part of the frame. When the fire truck ladder is retracted, a drive motor rotates a bidirectional threaded rod, which simultaneously retracts the first and second slides inwards, reducing the space occupied in the retracted state and preventing the device from encroaching on the side space of the fire truck. Similarly, the reverse operation unfolds the device, increasing the platform area and improving space utilization. However, in actual rescue operations, due to the need to protect the building structure and the platform, the platform cannot be flush against the building structure, leaving a certain gap. But trapped personnel are already in a state of panic, and this design can affect the rescue effectiveness. Utility Model Content

[0004] The purpose of this invention is to provide a fixed support for a ladder truck used in high-rise fire rescue, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ladder truck fixing bracket for high-rise fire rescue, comprising:

[0006] The hollow support platform is used to connect and fix the power arm of the ladder truck for high-rise fire rescue.

[0007] Protective brackets, attached to the top of the support platform, are used to protect items and personnel on the support platform.

[0008] The movable inner ladder is set inside the cavity of the support platform. An inner linear motor is installed horizontally on the inner wall of the support platform, and the moving part of the inner linear motor is connected and fixed to the movable inner ladder.

[0009] As a preferred embodiment, the protective bracket includes three auxiliary frames, all of which are mounted on the top of the support platform by multiple bolts, and two of the auxiliary frames are rotatably connected to movable frames on their sides.

[0010] As a preferred embodiment, multiple protective plates are welded to the inner walls of both the active frame and the auxiliary frame, and adjacent auxiliary frames are clamped and fixed together by clamps.

[0011] As a preferred embodiment, the two movable frames are connected and fixed by a locking mechanism, and the sides of the two auxiliary frames are welded with limiting plates for limiting the movable frames.

[0012] As a preferred embodiment, a hollow tube is welded to the side of the limiting plate, and an inverted U-shaped limiting rod for limiting the movable frame is provided in the inner cavity of the hollow tube.

[0013] As a preferred embodiment, a movable rod is welded to the bottom end of the limiting rod, and an anti-detachment plate is welded to the bottom end of the movable rod.

[0014] As a preferred embodiment, warning strips and reflective strips for reminders are glued to the outer periphery of both the auxiliary frame and the active frame, and multiple hooks for hanging items are detachably connected to the inner wall of the auxiliary frame.

[0015] As a preferred implementation, the top of the support platform is provided with anti-slip texture.

[0016] As a preferred embodiment, two sliding rods are welded to the top and bottom of the movable inner ladder, and two sliding plates that are slidably connected to the sliding rods are welded to the two transverse inner walls of the support platform.

[0017] As a preferred embodiment, the skateboard is configured with an arc-shaped structure.

[0018] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0019] The ladder truck mounting bracket used for high-rise fire rescue benefits from the design of the movable inner ladder and the inner linear motor. When a rescue is needed, the inner linear motor is controlled to drive the moving part to move, which in turn drives the movable inner ladder to extend out of the support platform, so that the movable inner ladder is close to the building structure (preferably placed on the platform of the building structure), making it convenient for trapped personnel to go up to the support platform from the movable inner ladder.

[0020] This ladder truck mounting bracket for high-rise fire rescue benefits from the design of the protective bracket. The auxiliary frame and the movable frame work together to achieve protective blocking and protect people and objects on the support platform. When it is necessary to rescue trapped people, the movable frame can be opened and then the limiting rod can be used to limit and fix it, so as to achieve protection when both sides are opened, indirectly reducing the panic of trapped people. If it is inconvenient for the movable frame to open outward, it can be opened inward.

[0021] The ladder truck mounting bracket used for high-rise fire rescue can not only extend an inner ladder for support, but also provide protection and obstruction. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the extended portion of the movable inner ladder of this utility model;

[0025] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0026] Figure 4 This is a schematic diagram of the movable inner ladder of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] In the picture:

[0029] 1. Support platform; 2. Protective bracket; 3. Movable inner ladder; 4. Internal linear motor; 5. Slide rod; 6. Slide plate; 21. Auxiliary frame; 22. Movable frame; 23. Protective plate; 24. Clamp; 25. Limiting plate; 26. Hollow tube; 27. Movable rod; 28. Limiting rod; 29. ​​Anti-detachment plate; 210. Warning strip; 211. Reflective strip; 212. Hook. Detailed Implementation

[0030] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0031] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0032] The connection method can adopt existing methods such as bonding, welding, and bolting, depending on the actual needs. Techniques, methods and equipment known to those skilled in the art may not be discussed in detail. However, where appropriate, the techniques, methods and equipment should be regarded as part of the specification. The proportions of the components in the drawings are for reference only and can be adjusted to a certain extent according to the actual use.

[0033] Please see Figures 1 to 4 As shown, a ladder truck mounting bracket for high-rise fire rescue, in this embodiment, includes:

[0034] The hollow support platform 1 is used to connect and fix with the power arm of the ladder truck for high-rise fire rescue. The top of the support platform 1 is provided with anti-slip texture.

[0035] Protective bracket 2, connected to the top of support platform 1, is used to protect items and personnel on support platform 1;

[0036] The movable inner ladder 3 is installed inside the cavity of the support platform 1. The strength of the movable inner ladder 3 is guaranteed to provide support, and its extension length should preferably not exceed two-thirds of its own length. An inner linear motor 4 is installed horizontally on the inner wall of the support platform 1. The moving part of the inner linear motor 4 is connected and fixed to the movable inner ladder 3. Two sliding rods 5 are welded to the top and bottom of the movable inner ladder 3. Two sliding plates 6 are welded to the two inner walls of the support platform 1 and are slidably connected to the sliding rods 5. The sliding plates 6 are set with an arc structure. The power arm of the ladder truck lifts the support platform 1 to the designated position. If the support platform 1 cannot be close to the building structure, the inner linear motor 4 can be controlled to drive the moving part to move, thereby driving the movable inner ladder 3 to extend out of the support platform 1, so that the movable inner ladder 1 is close to the building structure (preferably placed on the platform of the building structure), or against or close to the building structure.

[0037] The protective support 2 includes three auxiliary frames 21, which are all installed on the top of the support platform 1 by multiple bolts. Two of the auxiliary frames 21 are rotatably connected to movable frames 22 on their sides. The movable frames 22 are opened outward and then fixed by limiting rods 28 to achieve protection when both sides are opened, indirectly reducing the panic of trapped personnel. If the movable frames 22 are not convenient to open outward, they can be opened inward, and the trapped personnel can climb up to the support platform 1 from the movable inner ladder 3.

[0038] Multiple protective plates 23 are welded to the inner walls of the movable frame 22 and the auxiliary frame 21. The auxiliary frame 21 cooperates with the movable frame 22 to achieve protection and blockage, protecting people and objects on the support platform 1. Two adjacent auxiliary frames 21 are clamped and fixed by clamps 24, and two movable frames 22 are connected and fixed by locks.

[0039] Both auxiliary frames 21 have a limiting plate 25 welded to their sides for limiting the movable frame 22. A hollow tube 26 is welded to the side of the limiting plate 25. An inverted U-shaped limiting rod 28 is provided in the inner cavity of the hollow tube 26 for limiting the movable frame 22. A movable rod 27 is welded to the bottom end of the limiting rod 28. An anti-detachment plate 29 is welded to the bottom end of the movable rod 27. When fixation is required, the limiting rod 28 is lifted, the limiting rod 28 is rotated in the opposite direction so that it is above the movable frame 22, and the limiting rod 28 is pulled down to limit and fix the movable frame 22.

[0040] Both the auxiliary frame 21 and the movable frame 22 are attached with warning strips 210 and reflective strips 211 for reminders. The inner wall of the auxiliary frame 21 is detachably connected with multiple hooks 212 for hanging items.

[0041] Due to the rescue environment, all structures and instruments have been treated to be resistant to high temperatures, waterproof, fireproof, smokeproof, and corrosion-resistant, especially the only linear motor 4 inside the instrument.

[0042] The internal linear motor 4 is a conventional instrument. Its working principle, size, and model are irrelevant to the function of this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. In order to facilitate the inspection, maintenance, and parts replacement of the device, the parts inside a single device are usually from the same manufacturer and of the same model, function, and batch. Therefore, even if there is a certain difference between two or more electrical control devices, the synchronous movement of the electrical control devices can still be maintained under the action of the controller. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this utility model.

[0043] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology.

[0044] Working principle:

[0045] This ladder truck mounting bracket for high-rise fire rescue uses a power arm to lift the support platform 1 to a designated position. If the support platform 1 cannot be close to the building structure, the internal linear motor 4 can be controlled to move the moving part, thereby causing the movable inner ladder 3 to extend out of the support platform 1, so that the movable inner ladder 1 is close to the building structure (preferably placed on the platform of the building structure), and the movable frame 22 is opened outward. Then, the limiting rod 28 is used for limiting and fixing, realizing protection when both sides are opened, indirectly reducing the panic of trapped personnel. If the movable frame 22 is not convenient to open outward, it can be opened inward, and the trapped personnel can climb onto the support platform 1 from the movable inner ladder 3.

[0046] It should be noted that, in this document, relational terms such as "one" and "two" 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. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mounting bracket for a ladder truck used in high-rise fire rescue, characterized in that, include: A hollow support platform (1) is used to connect and fix with the power arm of the ladder truck for high-rise fire rescue; A protective bracket (2) is attached to the top of the support platform (1) and is used to protect items and personnel on the support platform (1); An movable inner ladder (3) is set in the inner cavity of the support platform (1). An inner linear motor (4) is installed horizontally on the inner wall of the support platform (1). The moving part of the inner linear motor (4) is connected and fixed to the movable inner ladder (3).

2. The ladder truck fixing bracket for high-rise fire rescue according to claim 1, characterized in that, The protective bracket (2) includes three auxiliary frames (21), all of which are mounted on the top of the support platform (1) by multiple bolts. Two of the auxiliary frames (21) are rotatably connected to movable frames (22) on their sides.

3. A ladder truck fixing bracket for high-rise fire rescue according to claim 2, characterized in that, The inner wall of the movable frame (22) and the inner wall of the auxiliary frame (21) are both welded with multiple protective plates (23), and two adjacent auxiliary frames (21) are clamped and fixed by clamps (24).

4. A ladder truck fixing bracket for high-rise fire rescue according to claim 3, characterized in that, The two movable frames (22) are connected and fixed by a latch, and the sides of the two auxiliary frames (21) are welded with limiting plates (25) for limiting the movable frames (22).

5. A ladder truck fixing bracket for high-rise fire rescue according to claim 4, characterized in that, The side of the limiting plate (25) is welded with a hollow tube (26), and the inner cavity of the hollow tube (26) is provided with an inverted U-shaped limiting rod (28) for limiting the movable frame (22).

6. A ladder truck fixing bracket for high-rise fire rescue according to claim 5, characterized in that, The bottom end of the limiting rod (28) is welded with a movable rod (27), and the bottom end of the movable rod (27) is welded with an anti-detachment plate (29).

7. A ladder truck fixing bracket for high-rise fire rescue according to claim 4, characterized in that, The outer periphery of both the auxiliary frame (21) and the movable frame (22) is covered with warning strips (210) and reflective strips (211) for reminders. The inner wall of the auxiliary frame (21) is detachably connected with a plurality of hooks (212) for hanging items.

8. A ladder truck fixing bracket for high-rise fire rescue according to claim 1, characterized in that, The top of the support platform (1) is provided with anti-slip texture.

9. A ladder truck fixing bracket for high-rise fire rescue according to claim 1, characterized in that, The top and bottom of the movable inner ladder (3) are each welded with two sliding rods (5), and the two transverse inner walls of the support platform (1) are each welded with two sliding plates (6) that are slidably connected to the sliding rods (5).

10. A ladder truck fixing bracket for high-rise fire rescue according to claim 9, characterized in that, The skateboard (6) is configured with an arc-shaped structure.