Expansion compartment of expansion medical vehicle
By installing an electrically driven tilting frame and support leg assembly under the extended carriage, the problems of limited load-bearing capacity and wear of the slide rail assembly in the prior art are solved, achieving higher load-bearing capacity and longer service life, while improving the smoothness of the unfolding and retraction process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CLW HEAVY IND CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-19
AI Technical Summary
The existing extended medical vehicle mainly relies on the slide rail assembly for support, which results in limited load-bearing capacity, high pressure on the slide rail assembly, short lifespan, and unsmooth expansion and contraction process.
An electrically driven tilting frame and support leg assembly is installed under the extended carriage. The tilting frame and support legs provide direct support, reducing the pressure on the slide rail assembly. The unfolding and folding of the tilting frame and support legs are achieved by using a lifting motor and ball screw system.
It improves the load-bearing capacity of the extended carriage, reduces wear on the slide rail assembly, extends its service life, and makes the unfolding and retraction process smoother.
Smart Images

Figure CN224256522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical extension vehicle technology, specifically to an extension compartment of an extension medical vehicle. Background Technology
[0002] A medical extension vehicle is a specialized vehicle designed specifically for complex medical scenarios. It features flexible space expansion capabilities and integrates advanced medical equipment, playing a vital role in emergency rescue, disease screening, and surgical treatment. The medical extension vehicle employs a single- or double-sided expansion design, using a sliding rail assembly to extend and support the extended compartment, significantly increasing internal usable space. This enables high mobility and adaptability, allowing for rapid deployment to accident sites or remote areas, adapting to complex terrain and emergency medical needs.
[0003] Currently, most expandable medical vehicles on the market rely primarily on sliding rail assemblies for support when the expandable compartment is deployed. This directly limits the load-bearing capacity of the expandable compartment. When there is a large amount of medical equipment and personnel inside, the sliding rail assembly is subjected to enormous pressure, easily accelerating wear and aging, and even causing deformation and shortening its service life. Market observations have revealed that some expandable medical vehicles have deformed due to insufficient strength in the sliding rail assembly, resulting in uneven expansion and contraction of the expandable compartment. Furthermore, the fit between the expanded compartment and the main compartment after contraction has decreased, indicating a deficiency in these systems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an extended compartment for an extended medical vehicle, which solves the problems of limited load-bearing capacity due to the existing extended compartment relying mainly on slide rail assemblies for support, as well as the high pressure and short lifespan of the slide rail assemblies.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] An extended compartment of an extended medical vehicle includes extended compartments movably mounted on both sides of a main compartment via a slide rail assembly. A storage slot is provided at the bottom of the extended compartment near the side wall. A rotating frame, rotatably stored within the storage slot, is rotatably connected to the inside of the storage slot via a pivot. A rotating push rod is fixedly installed at the top of the inner wall of the storage slot. A sliding groove is provided at the top of the inner wall of the storage slot. The piston rod front end of the rotating push rod is fixedly connected to a slider slidably connected within the sliding groove. The slider is movably hinged to the top of the rotating frame via a hinged connecting rod.
[0007] A lifting motor is fixedly installed inside the tilting frame. A ball screw is fixed to the shaft extension end of the lifting motor. The ball screw is connected to the movable frame that is slidably connected inside the tilting frame through a screw nut. The tilting frame is also provided with a support leg that is movably sleeved on the surface of the ball screw and fixedly connected to the movable frame. A support foot is fixed to the end of the support leg that is away from the movable frame.
[0008] The extended carriage and storage compartment are provided with clearance slots at the positions of the flip frame, support legs and support feet.
[0009] Preferably, the connecting rod is movably hinged to the connecting rod via a hinge seat located at the top of the flipping frame near the slide groove.
[0010] Preferably, the flip push rod is horizontally fixed to the top of the inner wall of the storage groove and located at the end of the slide away from the hinge seat.
[0011] Preferably, the inner wall of the flipping frame is provided with a guide groove parallel to the ball screw, and the movable frame is slidably connected to the guide groove through a slide bar fixed on the outer wall.
[0012] Preferably, the supporting foot is a circular supporting plate with a diameter larger than that of the supporting leg.
[0013] Preferably, each of the storage slots has at least two sets of support legs symmetrically arranged.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] This invention features a electrically driven, foldable and retractable tilting frame and support leg assembly located beneath the extended compartment. The structure is simple and easy to unfold and fold, directly providing support to the unfolded extended compartment. This not only improves the load-bearing capacity of the extended compartment but also significantly reduces the pressure on the slide rail assembly, thereby reducing wear and extending service life. It solves the problems of existing medical extension vehicles where the extended compartment relies primarily on the slide rail assembly for support, resulting in limited load-bearing capacity and high pressure and short lifespan of the slide rail assembly. Attached Figure Description
[0016] Figure 1 This is a perspective view of the overall structure of this utility model;
[0017] Figure 2 This is a diagram showing the positional relationship between the storage slot and the extended carriage of this utility model;
[0018] Figure 3 This is a schematic diagram of the unfolded structure of the internal support legs of the storage slot of this utility model;
[0019] Figure 4 This is a schematic diagram of the folding and storage of the internal support legs of the storage slot of this utility model;
[0020] Figure 5 This is a schematic diagram of the internal structure of the storage slot, flip frame, and support legs in the unfolded state of this utility model;
[0021] Figure 6 This is a schematic diagram of the internal structure of the folded storage slot, flip frame, and support leg of this utility model.
[0022] In the diagram: 1. Slide rail assembly; 2. Main carriage; 3. Extension carriage; 4. Storage slot; 5. Rotary shaft; 6. Tilting frame; 7. Tilting push rod; 8. Slide groove; 9. Slider; 10. Connecting rod; 11. Lifting motor; 12. Ball screw; 13. Movable frame; 14. Support leg; 15. Support foot; 16. Clearance slot; 17. Hinge seat; 18. Guide groove; 19. Slide bar. Detailed Implementation
[0023] 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.
[0024] like Figure 1-6 As shown, this utility model provides a technical solution: an extended compartment of an extended medical vehicle, including extended compartments 3 movably installed on both sides of the main compartment 2 via a slide rail assembly 1. A storage slot 4 is provided at the bottom of the extended compartment 3 near the side wall. A rotating frame 6 that can be rotatably stored in the storage slot 4 is rotatably connected to the inside of the storage slot 4 via a rotating shaft 5. A clearance slot 16 is provided at the positions of the extended compartment 3 and the storage slot 4 corresponding to the positions of the rotating frame 6, the support leg 14 and the support foot 15.
[0025] A flip push rod 7 is fixedly installed on the top of the inner wall of the storage slot 4. A slide groove 8 is provided on the top of the inner wall of the storage slot 4. The piston rod front end of the flip push rod 7 is fixedly connected to the slider 9 that is slidably connected in the slide groove 8. The slider 9 is movably hinged to the top of the flip frame 6 through the movable hinged connecting rod 10. The connecting rod 10 is movably hinged to the connecting rod 10 through the hinge seat 17 provided on the top of the flip frame 6 near the slide groove 8. The flip push rod 7 is horizontally fixed on the top of the inner wall of the storage slot 4 and located at the end of the slide groove 8 away from the hinge seat 17.
[0026] A lifting motor 11 is fixedly installed inside the tilting frame 6. A ball screw 12 is fixed to the shaft extension end of the lifting motor 11. The ball screw 12 is connected to the movable frame 13, which is slidably connected inside the tilting frame 6, through a screw nut. A guide groove 18 parallel to the ball screw 12 is provided on the inner wall of the tilting frame 6. The movable frame 13 is slidably connected to the guide groove 18 through a slide bar 19 fixed on the outer wall.
[0027] The interior of the flipping frame 6 is also provided with a support leg 14 that is movably sleeved on the surface of the ball screw 12 and fixedly connected to the movable frame 13. The end of the support leg 14 facing away from the movable frame 13 is fixed with a support foot 15. The support foot 15 is a circular support plate with a diameter larger than that of the support leg 14. At least two sets of support legs 14 are symmetrically arranged in each storage slot 4.
[0028] Working principle:
[0029] After the extended compartment 3 is unfolded, the flip push rod 7 pulls the slider 9 to move along the slide 8, and through the connecting rod 10 pulls the flip frame 6 to flip downward around the pivot 5, changing from a horizontal state to a vertical state. The lifting motor 11 drives the movable frame 13, support leg 14 and support foot 15 to move downward and support them on the ground through the ball screw 12, providing direct support for the unfolded extended compartment 3. When the extended compartment 3 needs to be stored, the lifting motor 11 drives the movable frame 13, support leg 14 and support foot 15 to move upward through the ball screw 12. The support leg 14 retracts into the flip frame 6. The flip push rod 7 pushes the flip frame 6 to flip upward around the pivot 5 through the slider 9 and connecting rod 10, changing from a vertical state to a horizontal state, completing the folding and storage, and then the extended compartment 3 can be stored.
[0030] It should be noted that, in this document, terms such as “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.
[0031] 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 extended compartment of an extended medical vehicle, comprising extended compartments (3) movably mounted on both sides of a main compartment (2) via a slide rail assembly (1), characterized in that: The extended compartment (3) has a storage slot (4) at the bottom of the compartment near the side wall. The storage slot (4) is rotatably connected to a flipping frame (6) that can be rotatably stored in the storage slot (4) via a pivot (5). A flipping push rod (7) is fixedly installed on the top of the inner wall of the storage slot (4). A sliding groove (8) is provided on the top of the inner wall of the storage slot (4). The piston rod front end of the flipping push rod (7) is fixedly connected to a slider (9) that is slidably connected in the sliding groove (8). The slider (9) is movably hinged to the top of the flipping frame (6) via a hinged connecting rod (10). A lifting motor (11) is fixedly installed inside the flipping frame (6). A ball screw (12) is fixed to the shaft extension end of the lifting motor (11). The ball screw (12) is connected to the movable frame (13) inside the flipping frame (6) through a screw nut. The flipping frame (6) is also provided with a support leg (14) that is movably sleeved on the surface of the ball screw (12) and fixedly connected to the movable frame (13). A support foot (15) is fixed to the end of the support leg (14) that is away from the movable frame (13). The extended compartment (3) and storage slot (4) are provided with clearance slots (16) at the positions of the flip frame (6), support leg (14) and support foot (15).
2. The extended compartment of an extended medical vehicle according to claim 1, characterized in that: The connecting rod (10) is movably hinged to the connecting rod (10) via a hinge seat (17) provided at the top of the flipping frame (6) near the slide groove (8).
3. The extended compartment of an extended medical vehicle according to claim 2, characterized in that: The flip push rod (7) is horizontally fixed at the top of the inner wall of the storage groove (4) and located at one end of the slide groove (8) away from the hinge seat (17).
4. The extended compartment of an extended medical vehicle according to claim 1, characterized in that: The inner wall of the flipping frame (6) is provided with a guide groove (18) parallel to the ball screw (12), and the movable frame (13) is slidably connected to the guide groove (18) through a slide bar (19) fixed on the outer wall.
5. The extended compartment of an extended medical vehicle according to claim 1, characterized in that: The supporting foot (15) is a circular supporting plate with a diameter larger than that of the supporting leg (14).
6. The extended compartment of an extended medical vehicle according to claim 1, characterized in that: Each of the storage slots (4) is provided with at least two sets of support legs (14) symmetrically arranged.