Novel turning-up type roller shutter door mechanism for fire fighting truck
The new type of flip-up roller shutter door mechanism, which integrates a rear-hinged door and a roller shutter door, solves the problem that fire trucks cannot open the rear-hinged door in confined spaces, enabling flexible rescue operations and safety protection.
Patent Information
- Application Number
- CN202520527270.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-24
AI Technical Summary
The rear doors of existing fire trucks cannot be opened in confined spaces, which affects rescue operations, while roller shutter doors cannot provide effective protection.
A novel flip-up roller shutter door mechanism is designed, integrating a rear-hinged door with a roller shutter door. Different opening methods are achieved through gas spring drive and locking mechanism, and a sealing structure is combined to save space and improve security.
In confined spaces, rescue operations can be carried out using roller shutters. When there is sufficient space, the rear door can be opened directly to provide safety protection. The operation is simple and makes good use of space.
Smart Images
Figure CN223964375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fire truck roller shutter doors, specifically to a novel flip-up roller shutter door mechanism for fire trucks. Background Technology
[0002] Current fire trucks all use either tilt-top or roller shutter doors. While tilt-top doors effectively protect firefighters when opened, they require a significant amount of rear space, making them unsuitable for operation in confined areas. Roller shutter doors save space but do not provide adequate protection for firefighters. Utility Model Content
[0003] The purpose of this utility model is to provide a novel flip-up roller shutter door mechanism for fire trucks, in order to solve at least one of the aforementioned problems existing in the prior art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A novel tilting roller shutter mechanism for fire trucks includes a fixed frame, a roller shutter frame, and a roller shutter roller. The upper end of the roller shutter frame is rotatably connected to the fixed frame via a hinge. The fixed frame is equipped with a gas spring for driving the roller shutter frame to tilt along the hinge. A tilting door lock mechanism is provided between the roller shutter frame and the fixed frame to lock both in a locked state. The roller shutter roller is mounted on the roller shutter frame, and a roller shutter panel is wound on the roller shutter roller via a torsion spring. The roller shutter frame is equipped with a guide rail, and the roller shutter panel moves along the guide rail. A roller shutter lock mechanism is provided between the roller shutter frame and the roller shutter panel to lock the roller shutter panel in the fully extended state.
[0006] This technical solution transforms the roller shutter door into a rear-hinged door when not in use, integrating the rear-hinged door with the roller shutter door to save installation space and make efficient use of space. When space permits, the rear-hinged door can be opened directly, allowing firefighters to conduct rescue operations safely and reliably under its protection. In confined spaces, the roller shutter door can be opened for rescue operations without needing to operate the rear-hinged door. This technical solution allows for the selection of different rear door opening methods for specific scenarios, and its operation is simple and convenient.
[0007] Furthermore, in order to better lock the rear-hinged door, the door lock mechanism is located between the lower ends of the roller shutter frame and the fixed frame.
[0008] Furthermore, in order to better lock the roller shutter door, the roller shutter door locking mechanism is located between the lower ends of the roller shutter door panel and the roller shutter door frame.
[0009] Furthermore, in order to improve the sealing effect between the rear-hinged door and the fixed frame, a sealing structure is provided between the fixed frame and the roller shutter door frame.
[0010] Furthermore, for ease of operation, a handle is provided at the lower end of the roller shutter door panel.
[0011] The beneficial effects of this utility model are as follows: This technical solution allows the roller shutter door to form a rear-hinged door when not in use, integrating the rear-hinged door with the roller shutter door, saving installation space and making rational use of space. When space permits, the rear-hinged door can be opened directly, allowing firefighters to conduct rescue operations safely and reliably under its protection. In confined spaces, the roller shutter door can be opened for rescue operations without needing to operate the rear-hinged door. This technical solution allows for the selection of different rear door opening methods for specific scenarios, and its operation is simple and convenient. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0013] Figure 2 This is a partial cross-sectional view of the roller shutter section in this utility model.
[0014] Figure 3 This is a partial cross-sectional view of the roller shutter door frame and the fixing frame in this utility model;
[0015] Figure 4 This is a structural schematic diagram of the rear-hinged door in the open state of this utility model.
[0016] In the diagram: 1. Fixed frame; 2. Roller shutter frame; 3. Roller shutter roller; 4. Hinge; 5. Gas spring; 6. Flip-up door lock mechanism; 7. Roller shutter panel; 8. Guide rail; 9. Roller shutter lock mechanism; 10. Sealing structure. Detailed Implementation
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0018] Example 1:
[0019] like Figures 1-4As shown, this embodiment provides a novel tilting roller shutter door mechanism for fire trucks, including a fixed frame 1, a roller shutter door frame 2, and a roller shutter door roller 3. The upper end of the roller shutter door frame 2 is rotatably connected to the fixed frame 1 via a hinge 4. The fixed frame 1 is provided with a gas spring 5 for driving the roller shutter door frame 2 to tilt along the hinge 4. A tilting door lock mechanism 6 is provided between the roller shutter door frame 2 and the fixed frame 1 for fixing the two in a locked state. The roller shutter door roller 3 is installed on the roller shutter door frame 2. A roller shutter door panel 7 is wound on the roller shutter door roller 3 via a torsion spring. The roller shutter door frame 2 is provided with a guide rail 8. The roller shutter door panel 7 moves along the guide rail 8. A roller shutter door lock mechanism 9 is provided between the roller shutter door frame 2 and the roller shutter door panel 7 for locking the roller shutter door panel 7 in a fully pulled-out state.
[0020] This technical solution transforms the roller shutter door into a rear-hinged door when not in use, integrating the rear-hinged door with the roller shutter door to save installation space and make efficient use of space. When space permits, the rear-hinged door can be opened directly, allowing firefighters to conduct rescue operations safely and reliably under its protection. In confined spaces, the roller shutter door can be opened for rescue operations without needing to operate the rear-hinged door. This technical solution allows for the selection of different rear door opening methods for specific scenarios, and its operation is simple and convenient.
[0021] Example 2:
[0022] This embodiment is an optimization based on the above embodiment 1.
[0023] To better lock the rear-hinged door, the lifting door lock mechanism 6 is located between the lower ends of the roller shutter frame 2 and the fixed frame 1.
[0024] Example 3:
[0025] This embodiment is an optimization based on the above embodiment 1.
[0026] To better lock the roller shutter door, the roller shutter door locking mechanism 9 is located between the lower end of the roller shutter door panel 7 and the roller shutter door frame 2.
[0027] Example 4:
[0028] This embodiment is an optimization based on the above embodiment 1.
[0029] To improve the sealing effect between the rear-hinged door and the fixed frame 1, a sealing structure 10 is provided between the fixed frame 1 and the roller shutter door frame 2.
[0030] Example 5:
[0031] This embodiment is an optimization based on the above embodiment 1.
[0032] For ease of operation, a handle is provided at the bottom of the roller shutter door panel 7.
[0033] The fixed frame 1 secures the entire flip-up roller shutter door to the rear of the carriage. The upper end of the roller shutter door frame 2 is rotatably connected to the fixed frame 1 via a hinge 4. That is, one end of the hinge 4 is fixed to the fixed frame 1, and the other end is fixed to the roller shutter door frame 2. The roller shutter door frame 2 rotates around the fixed frame 1 via the hinge 4. The guide rail 8 on the roller shutter door frame is the slide rail for the roller shutter door panel 7. A roller shutter door lock mechanism 9 is provided between the roller shutter door frame 2 and the roller shutter door panel 7 to lock the roller shutter door panel 7 in the fully extended state. A sealing structure 10 is installed on the side of the roller shutter door frame 2 near the fixed frame 1 to seal against the fixed frame 1. The roller shutter door panel 7 can rotate around the roller shutter door roller 3.
[0034] In specific operation: When the roller shutter is not in use, it forms a rear-hinged door. Unlock the lifting door lock mechanism 6, and the entire rear-hinged door will flip upward around the hinge 4 under the action of the gas spring 5 and the operator's upward pushing force, opening the roller shutter. Firefighters can then perform rescue operations from below the roller shutter. After the operation is completed, the operator manually flips the rear-hinged door to the designated position until the lifting door lock mechanism 6 locks the rear-hinged door to the fixed frame 1. When the space around the vehicle is very small and there is not enough space to open the rear-hinged door, the roller shutter can be unlocked directly without opening the roller shutter. The roller shutter roller 3 will rotate around the roller axis under the action of the internal torsion spring, rolling up the roller shutter panel 7. The roller shutter panel 7 slides upward along the guide rail 8, opening the roller shutter, allowing firefighters to perform rescue operations. After the operation is completed, the operator manually pulls the handle on the roller shutter panel 7 and slides it downward. When it reaches the limit position, the roller shutter locks directly.
[0035] In summary, this technical solution allows for rescue operations in confined spaces by using a roller shutter door to open the rear door. Where space permits, the rear lift-up door can be opened directly, allowing firefighters to conduct rescue operations under its protection. The operation is simple and convenient, and integrating the rear lift-up door with the roller shutter door saves installation space.
[0036] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A new type of roll-up curtain door mechanism for fire trucks, characterized in that: The utility model relates to a fixed frame, a roller shutter door frame and a roller shutter door roller, the upper end of the roller shutter door frame is rotatably connected with the fixed frame through a hinge, the fixed frame is provided with a gas spring for driving the roller shutter door frame to flip along the hinge, and a flip door lock mechanism for fixing the locked state of the roller shutter door frame and the fixed frame is arranged between the roller shutter door frame and the fixed frame; the roller shutter door roller is installed on the roller shutter door frame, the roller shutter door roller is provided with a roller shutter door piece through a torsion spring, the roller shutter door frame is provided with a guide rail, the roller shutter door piece moves along the guide rail, and a roller shutter door lock mechanism for locking the completely pulled-out state of the roller shutter door piece is arranged between the roller shutter door frame and the roller shutter door piece.
2. A novel roll-up door mechanism for fire trucks as claimed in claim 1, wherein: The flip door lock mechanism is arranged between the roller shutter door frame and the lower end of the fixed frame.
3. A novel roll-up door mechanism for fire trucks as claimed in claim 1, wherein: The roller shutter door lock mechanism is arranged between the roller shutter door piece and the lower end of the roller shutter door frame.
4. A novel roll-up door mechanism for fire trucks as claimed in claim 1, wherein: The fixed frame and the roller shutter door frame are provided with a sealing structure.
5. A novel roll-up door mechanism for fire trucks as claimed in claim 1, wherein: The lower end of the roller shutter door piece is provided with a handle.