Emergency security vehicle expansion platform
By designing a pull-out platform and a folding ladder on the emergency support vehicle, the problem of inconvenient passage caused by the large height difference between the extended cabin of the emergency support vehicle and the ground was solved, realizing a convenient and fast passage solution.
Patent Information
- Application Number
- CN202520750516.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-21
AI Technical Summary
The large height difference between the extended cabin and the ground in emergency support vehicles makes it inconvenient for personnel to get on and off, resulting in low traffic efficiency.
Design an extension platform that includes a pull-out platform, a folding ladder, and a retractable canopy. The pull-out platform is connected to the ground via the folding ladder, and the retractable canopy provides protection, enabling rapid setup and convenient access.
It improves the traffic efficiency of emergency support vehicles, provides convenient access for getting on and off, and maintains an overall folded-out state without taking up space.
Smart Images

Figure CN223919194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emergency support vehicle technology, specifically an emergency support vehicle expansion platform. Background Technology
[0002] Emergency support vehicles are used for emergency rescue command. The extended cabin of an emergency support vehicle is a modular, rapidly deployable functional space. Emergency support vehicles typically install extended cabins to expand their working space. These extended cabins are usually deployed from the side of the vehicle body via pull-out, folding, or linkage structures, forming a larger enclosed space when joined with the vehicle body. Due to the high height of emergency support vehicles and the significant height difference between the cabin / body and the ground, it is inconvenient for personnel to enter and exit. To optimize traffic efficiency and improve the convenience of entering and exiting the extended cabin / body, we provide an emergency support vehicle expansion platform. Utility Model Content
[0003] The purpose of this utility model is to provide an extended platform for emergency support vehicles, which solves the problem that emergency support vehicles are relatively tall, and the height difference between the container and the vehicle body and the ground is large, making it inconvenient for personnel to get in and out, and requiring optimization of traffic efficiency.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an emergency support vehicle expansion platform, including a pull-out platform installed on the vehicle's cargo compartment and movable relative to the cargo compartment. The cargo compartment of the vehicle is provided with a chamber 1 for accommodating the pull-out platform. The pull-out platform includes a slide rail assembly symmetrically arranged along the translational direction, an expansion platform connected to the slide rail of the slide rail assembly, and a platform push rod connected between the chamber 1 and the expansion platform to drive the expansion platform to move horizontally. The fixed rail of the slide rail assembly extends and is fixed within the chamber 1.
[0005] The vehicle's cargo compartment has an extendable cabin and a door on its side, with the extendable cabin having a door on its outer side. A pull-out platform extending outward from the vehicle is built between the door of the extendable cabin and the door. The outer side of the extendable platform has a hinged guardrail. A folding ladder is slidably installed at the bottom of the extendable platform. The folding ladder unfolds and leans against the ground on the side of the extendable platform away from the extendable cabin. A retractable canopy is also provided on the vehicle's cargo compartment directly above the extendable platform.
[0006] Preferably, the vehicle's cargo compartment is provided with a second chamber for accommodating a retractable canopy.
[0007] Preferably, the retractable canopy is retracted and extended relative to the vehicle's cargo compartment. The retractable canopy includes a hinged bracket symmetrically arranged along the translation direction, an automatic retractable canopy, and a canopy push rod connected between the second chamber and the automatic retractable canopy to drive the automatic retractable canopy to unfold.
[0008] The two crossbars of the hinged bracket are hinged at opposite ends. One end of one set of crossbars is hinged to the upper cover plate of the automatic roll-up canopy, and one end of the other set of crossbars is hinged to the entrance of the second chamber.
[0009] Preferably, the size of the upper cover plate is adapted to the inlet size of the second chamber.
[0010] Preferably, the extension platform includes a load-bearing plate, a side plate, and a lower cover plate. The load-bearing plate is fixed between the side plate and the lower cover plate. The bottom end of the guardrail is hinged to the load-bearing plate. The height of the guardrail is less than the distance between the side plate and the lower cover plate.
[0011] The opposite surfaces of the side plate and the lower cover plate are provided with slides for the sliding and accommodating of a folding ladder. The height of the slides is staggered from the installation height of the platform push rod.
[0012] Preferably, the dimensions of the lower cover plate are adapted to the inlet dimensions of chamber one.
[0013] Preferably, the folding ladder includes ladder legs and a footboard assembly hinged to the ladder legs. A crossbar frame connecting the ladder legs is supported at the bottom of the footboard of the footboard assembly. The upper end of each ladder leg is provided with a pulley and is slidably disposed in a slide rail. The end of the slide rail is provided with a limiting block. A positioning pin is provided on the outer side of each ladder leg near the lower end. The limiting block is provided with a notch whose size matches that of the positioning pin.
[0014] Preferably, the lower end of the ladder leg is hinged to a support leg, the support leg is diagonally supported on the ground, and the lower end of the ladder leg is provided with a groove to accommodate the folded support leg.
[0015] This utility model has the following beneficial effects:
[0016] This utility model features a pull-out platform, a folding ladder, and a retractable canopy. The pull-out platform and retractable canopy unfold automatically for quick setup. The pull-out platform is connected to the ground via the folding ladder and is positioned between the entrance and the cabin door of the extended cabin, significantly improving passage efficiency. The retractable canopy provides protection from wind and rain, ensuring safety and convenience. When folded up, the entire structure takes up no space. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a structural diagram of the pull-out platform and retractable canopy of this utility model.
[0019] Figure 3 This is a perspective view of the pull-out platform of this utility model;
[0020] Figure 4This is a two-dimensional view of the pull-out platform of this utility model;
[0021] Figure 5 This utility model Figure 3 Enlarged view of the structure at point A in the middle;
[0022] Figure 6 This is a right view of the retractable canopy of this utility model;
[0023] Figure 7 This is a schematic diagram of the retractable canopy structure of this utility model.
[0024] In the diagram: 1. Vehicle; 11. Chamber 1; 12. Extendable Container; 13. Door; 14. Chamber 2; 2. Pull-out Platform; 21. Slide Rail Assembly; 22. Extension Platform; 221. Load-bearing Plate; 222. Side Plate; 223. Lower Cover Plate; 224. Slide Track; 2241. Limiting Block; 23. Platform Push Rod; 24. Guardrail; 3. Folding Ladder; 31. Ladder Leg; 311. Crossbar Frame; 312. Pulley; 313. Positioning Column Head; 314. Support Leg; 32. Pedal Assembly; 4. Retractable Canopy; 41. Hinge Bracket; 42. Automatic Retractable Canopy; 421. Upper Cover Plate; 43. Canopy Push Rod. Detailed Implementation
[0025] 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.
[0026] like Figure 1-7 As shown, this utility model provides a technical solution: an emergency support vehicle expansion platform, including a pull-out platform 2 installed on the carriage of vehicle 1 and movable relative to the carriage. The side of the carriage of vehicle 1 is provided with an expansion cabin 12 and a door 13, and the expansion cabin 12 is provided with a door on the outside. The pull-out platform 2 extending outward from vehicle 1 is built between the door of the expansion cabin 12 and the door 13 of vehicle 1 to serve as a connecting passage. The carriage of vehicle 1 is provided with a chamber 11 for receiving the pull-out platform 2.
[0027] The pull-out platform 2 includes a slide rail assembly 21 symmetrically arranged along the translation direction, an extension platform 22 connected to the slide rail of the slide rail assembly 21, and a platform push rod 23 connected between the chamber 11 and the extension platform 22 to drive the extension platform 22 to move horizontally. The fixed rail of the slide rail assembly 21 extends and is fixed inside the chamber 11.
[0028] The outer side of the extension platform 22 is equipped with a hinged guardrail 24, and a folding ladder 3 is slidably installed at the bottom of the extension platform 22. The folding ladder 3 unfolds and is inclined to the ground on the side of the extension platform 22 away from the extension container 12.
[0029] The extension platform 22 includes a load-bearing plate 221, a side plate 222, and a lower cover plate 223. The load-bearing plate 221 is fixed between the side plate 222 and the lower cover plate 223. The bottom end of the guardrail 24 is hinged to the load-bearing plate 221. The height of the guardrail 24 is less than the distance between the side plate 222 and the lower cover plate 223. When the guardrail 24 is stored, it is folded to the side that is flush with the load-bearing plate 221. The size of the lower cover plate 223 is adapted to the entrance size of the chamber 11. After the extension platform 22 is housed in the chamber 11, the lower cover plate 223 closes the entrance of the chamber 11 to seal it.
[0030] The opposite surfaces of the side panel 222 and the lower cover plate 223 are provided with a slide 224 for the folding ladder 3 to slide and be accommodated. The height of the slide 224 is staggered from the installation height of the platform push rod 23 to make way when folding and storing.
[0031] The folding ladder 3 includes ladder legs 31 and a step assembly 32 hinged to the ladder legs 31. When in use, the step assembly 32 unfolds; when folded, it flips upwards to fold flat with the ladder legs 31. A crossbar 311 connecting the ladder legs 31 supports the bottom of the steps in the step assembly 32, positioning the unfolded step assembly 32. A pulley 312 is provided at the upper end of the ladder legs 31, sliding within a slide rail 224. A limiting block 2241 is provided at the end of the slide rail 224, restricting the sliding movement of the ladder legs 31. To prevent it from detaching from the slide 224, a positioning head 313 is provided on the outer side of the ladder leg 31 near the lower end. When the folding ladder 3 is folded horizontally and stored under the extension platform 22, one end of the folding ladder 3 is supported on the slide 224 by the pulley 312, and the other end is supported on the slide 224 by the positioning head 313 to keep it flat. The limiting block 2241 is provided with a notch with a size that matches the size of the positioning head 313, so that the positioning head 313 can enter the slide 224 from the notch when the folding ladder 3 is folded and stored.
[0032] The lower end of the ladder leg 31 is hinged with a support leg 314, which is diagonally supported on the ground. The lower end of the ladder leg 31 is provided with a groove to accommodate the folded support leg 314. When stored, the support leg 314 is retracted into the groove. When in use, the ladder leg 31 supported by the support leg 314 has better stability.
[0033] A retractable canopy 4 is also provided on the carriage of vehicle 1 directly above the extension platform 22. The carriage of vehicle 1 has a second chamber 14 for accommodating the retractable canopy 4. The retractable canopy 4 moves horizontally relative to the carriage of vehicle 1 to retract. The retractable canopy 4 includes a hinged bracket 41 symmetrically arranged along the horizontal direction, an automatic retractable canopy 42, and a canopy push rod 43 connected between the second chamber 14 and the automatic retractable canopy 42 to drive the automatic retractable canopy 42 to unfold. The automatic retractable canopy 42 mainly relies on an internal spring system to achieve the automatic retraction function. The spring system is usually a steel helical spring.
[0034] The two crossbars of the hinged bracket 41 are hinged at opposite ends. One end of one set of crossbars is hinged to the upper cover plate 421 of the automatic roll-up canopy 42, and one end of the other set of crossbars is hinged to the entrance of the second chamber 14. The hinged bracket 41 provides support and assists in folding the unfolded automatic roll-up canopy 42. The size of the upper cover plate 421 is adapted to the entrance size of the second chamber 14. After the retractable canopy 4 is housed in the second chamber 14, the upper cover plate 421 closes the entrance of the second chamber 14.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.
[0036] 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. An emergency support vehicle expansion platform, characterized in that: The system includes a pull-out platform (2) installed on the carriage of a vehicle (1) and movable relative to the carriage. The carriage of the vehicle (1) has a chamber (11) for accommodating the pull-out platform (2). The pull-out platform (2) includes a slide rail assembly (21) symmetrically arranged along the translation direction, an extension platform (22) connected to the slide rail of the slide rail assembly (21), and a platform push rod (23) connected between the chamber (11) and the extension platform (22) to drive the extension platform (22) to move horizontally. The fixed rail of the slide rail assembly (21) extends and is fixed inside the chamber (11). The vehicle (1) has an extended cabin (12) and a door (13) on the side of the carriage. The extended cabin (12) has a door on the outside. A pull-out platform (2) extending outward from the vehicle (1) is built between the door of the extended cabin (12) and the door (13). The outer side of the extended platform (22) is equipped with a hinged guardrail (24). A folding ladder (3) is slidably installed at the bottom of the extended platform (22). The folding ladder (3) unfolds and leans on the ground on the side of the extended platform (22) away from the extended cabin (12). A retractable canopy (4) is also provided on the carriage of the vehicle (1) directly above the extended platform (22).
2. The emergency support vehicle expansion platform according to claim 1, characterized in that: The vehicle (1) has a second chamber (14) inside its cargo compartment that houses a retractable canopy (4).
3. The emergency support vehicle expansion platform according to claim 2, characterized in that: The retractable canopy (4) moves and retracts relative to the carriage of the vehicle (1). The retractable canopy (4) includes a hinged bracket (41) symmetrically arranged along the translation direction, an automatic roll-up canopy (42), and a canopy push rod (43) that connects the second chamber (14) and the automatic roll-up canopy (42) to drive the automatic roll-up canopy (42) to unfold. The two crossbars of the hinged bracket (41) are hinged at opposite ends. One end of one set of crossbars is hinged to the upper cover plate (421) of the automatic roll-up canopy (42), and one end of the other set of crossbars is hinged to the entrance of the second chamber (14).
4. An emergency support vehicle expansion platform according to claim 3, characterized in that: The dimensions of the upper cover plate (421) are adapted to the inlet dimensions of the second chamber (14).
5. An emergency support vehicle expansion platform according to claim 1, characterized in that: The extension platform (22) includes a load-bearing plate (221), a side plate (222), and a lower cover plate (223). The load-bearing plate (221) is fixed between the side plate (222) and the lower cover plate (223). The bottom end of the guardrail (24) is hinged to the load-bearing plate (221). The height of the guardrail (24) is less than the distance between the side plate (222) and the lower cover plate (223). The opposite surfaces of the side plate (222) and the lower cover plate (223) are provided with a slide (224) for the sliding and receiving of the folding ladder (3). The setting height of the slide (224) is staggered from the installation height of the platform push rod (23).
6. An emergency support vehicle expansion platform according to claim 5, characterized in that: The dimensions of the lower cover plate (223) are adapted to the inlet dimensions of chamber one (11).
7. An emergency support vehicle expansion platform according to claim 5, characterized in that: The folding ladder (3) includes ladder legs (31) and a footboard assembly (32) hinged to the ladder legs (31). A crossbar frame (311) connecting the ladder legs (31) is supported at the bottom of the footboard of the footboard assembly (32). A pulley (312) is provided at the upper end of the ladder leg (31) and is slidably disposed in a slide rail (224). A limiting block (2241) is provided at the end of the slide rail (224). A positioning pin (313) is provided on the outer side of the ladder leg (31) near the lower end. A notch with a size that matches the size of the positioning pin (313) is provided on the limiting block (2241).
8. An emergency support vehicle expansion platform according to claim 7, characterized in that: The lower end of the ladder leg (31) is hinged to a support leg (314), which is diagonally supported on the ground. The lower end of the ladder leg (31) is provided with a groove to accommodate the folding of the support leg (314).