Fire fighting truck

Abstract

The utility model provides a fire fighting truck. The fire fighting truck comprises a carriage and a carriage door assembly, a first opening is formed in the compartment wall of the compartment; the compartment door assembly comprises a turnover door and a roller shutter door. The top end of the turnover door is rotationally connected to the top edge of the first opening, the turnover door can be adjusted between a closed state and an opened state, and the turnover door is provided with a second opening; one end of the roller shutter door is connected to the roller, the roller is arranged on the inner side face of the turnover door and located above the second opening, and the roller can automatically roll the roller shutter door; the other end of the roller shutter door is connected with a pull rod, and when the roller shutter door is pulled out of the roller, the pull rod is limited by a limiting piece arranged on the turnover door, so that the roller shutter door is kept in a pulled-out state to seal the second opening. By means of the structural design, when the turnover door is opened and the roller shutter door is closed, a falling object on the upper portion can be shielded, when the turnover door is closed and the roller shutter door is opened, space occupation caused by opening of the compartment door assembly can be avoided, and good use safety and application universality are both considered.

Description

Technical Field

[0001] This disclosure relates to the technical field of fire trucks and related equipment, and in particular to a fire truck. Background Technology

[0002] Fire trucks are equipped with doors inside the cargo compartment, and corresponding to these doors are mechanisms such as control panels for users to operate after opening the doors. However, in some existing fire truck designs, the doors are roller shutters. In scenarios such as fire scenes, this lack of protection against falling debris when operating from the doorway compromises the fire truck's safety. Furthermore, in other existing fire truck designs, the doors are tilt-over doors. Tilting-over doors require a certain amount of space to open. In scenarios such as fire station garages, the limited distance between the fire truck and garage walls or other obstacles can prevent the tilt-over doors from opening properly, limiting the fire truck's versatility. Utility Model Content

[0003] A primary objective of this disclosure is to overcome at least one of the deficiencies of the prior art described above, and to provide a fire truck that combines safety in use with versatility in application.

[0004] To achieve the above objectives, the present disclosure adopts the following technical solution:

[0005] According to one aspect of this disclosure, a fire truck is provided, comprising a compartment and a door assembly; the compartment wall is provided with a first opening; the door assembly includes a tilting door and a roller shutter door; the top end of the tilting door is rotatably connected to the top edge of the first opening, the tilting door is adjustable between a closed state and an open state, the tilting door is provided with a second opening; one end of the roller shutter door is connected to a roller, the roller is disposed on the inner side of the tilting door and above the second opening, the roller is configured to automatically roll up the roller shutter door; the other end of the roller shutter door is connected to a pull rod, when the roller shutter door is pulled out from the roller, the pull rod is limited by a limiting member disposed on the tilting door, so that the roller shutter door remains in the pulled-out state and closes the second opening.

[0006] According to one embodiment of the present disclosure, the door assembly further includes a support wheel; the support wheel is disposed on the inner side of the folding door; wherein the portion of the roller shutter door extending out of the roller is supported by the support wheel, such that the portion of the roller shutter door extending out of the roller first extends in a direction perpendicular to the folding door, and after passing the support wheel, extends in a direction parallel to the folding door.

[0007] According to one embodiment of this disclosure, the door assembly further includes a bracket; the bracket is disposed on the inner side of the tilting door; wherein the roller and the support wheel are respectively disposed on the bracket, and the support wheel is located between the roller and the tilting door.

[0008] According to one embodiment of this disclosure, the distance between the top edge of the second opening and the top of the flip door accounts for less than 1 / 2 of the total length of the flip door.

[0009] According to one embodiment of this disclosure, the pull rod extends parallel to the width direction of the flip door, the length of the pull rod is greater than the width of the second opening, and the two ends of the pull rod extend beyond the two side edges of the second opening in the width direction and are respectively located outside the flip door.

[0010] According to one embodiment of this disclosure, the outer side of the flip door is provided with two limiting members, which are respectively located at the bottom ends of the two sides of the second opening in the width direction, and the two limiting members are respectively limited and engaged with the two ends of the pull rod.

[0011] According to one embodiment of this disclosure, the flip door is rotatably connected to the compartment wall via a hinge structure made of stainless steel.

[0012] According to one embodiment of this disclosure, the folding door is provided with a door lock assembly; the door lock assembly includes an operating member and a locking arm, the operating member is disposed on the outer side of the folding door, the locking arm is disposed on the inner side of the folding door, and the operating member and the locking arm are connected via a pivot passing through the folding door; when the user rotates the operating member, the locking arm can be rotated to lock or unlock the locking arm. When the locking arm is locked, the locking arm portion is located on the inner side of the compartment wall, preventing the folding door from rotating relative to the compartment wall and keeping it in a closed state.

[0013] According to one embodiment of this disclosure, the tilting door is connected to the side wall by a gas spring, and the two ends of the gas spring are rotatably connected to the tilting door and the side wall respectively. The gas spring can support the tilting door to remain in the open state.

[0014] According to one embodiment of this disclosure, the fire truck further includes a detection device; the detection device is used to detect the opening and closing status of the tilting door and the roller shutter door; the detection device is connected to an alarm device and / or an indicator light, wherein when at least one of the tilting door and the roller shutter door is open, the alarm device alarms and / or the indicator light is activated, and when both the tilting door and the roller shutter door are closed, the alarm device and / or the indicator light is turned off.

[0015] As can be seen from the above technical solution, the advantages and positive effects of the fire truck proposed in this disclosure are as follows:

[0016] The fire truck disclosed herein includes a cargo compartment and a door assembly. The cargo compartment wall has a first opening. The door assembly includes a tilting door and a roller shutter door. The top of the tilting door is rotatably connected to the top edge of the first opening. The tilting door is adjustable between a closed and an open state. The tilting door has a second opening. One end of the roller shutter door is connected to a roller located on the inner side of the tilting door and above the second opening. The roller is configured to automatically retract the roller shutter door. The other end of the roller shutter door is connected to a pull rod. When the roller shutter door is pulled out from the roller, the pull rod is limited by a limiting member on the tilting door, keeping the roller shutter door in the pulled-out state and closing the second opening. Through this structural design, the present invention can provide protection against falling objects when the tilting door is open and the roller shutter door is closed, protecting users operating at the first opening. Furthermore, the present invention can avoid the space occupation caused by opening the door assembly when the tilting door is closed and the roller shutter door is open, making it suitable for fire truck applications in confined spaces. Therefore, the fire truck disclosed herein can balance better safety and wider applicability. Based on this, the present invention adopts a roller shutter door design, which can realize the automatic winding of the shutter door. The rolled-up shutter door occupies less space and has a more compact structure, avoiding excessive occupation of the interior space of the carriage and avoiding interference with other components inside the carriage. In addition, it can also be used to arrange a larger second opening on the flip door, ensuring that the user's operational needs can be met in different opening modes. Attached Figure Description

[0017] The various objectives, features, and advantages of this disclosure will become more apparent from the following detailed description of preferred embodiments of the disclosure taken in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0018] Figure 1 This is a structural schematic diagram of a fire truck according to an exemplary embodiment;

[0019] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0020] Figures 3 to 5 They are Figure 2 The diagram shows the structural schematics of the door assembly from several different perspectives;

[0021] Figure 6 yes Figure 4 An enlarged schematic diagram of part A in the diagram;

[0022] Figure 7 yes Figure 5 An enlarged schematic diagram of part B in the diagram;

[0023] Figure 8 yes Figure 3 The diagram shown illustrates the structure of a piano hinge.

[0024] The annotations in the attached figures are explained as follows:

[0025] 100. Train carriage;

[0026] 101. The first opening;

[0027] 200. Door assembly;

[0028] 210. Flip-top door;

[0029] 2101. The second opening;

[0030] 211. Limiting components;

[0031] 212. Support wheel;

[0032] 213. Bracket;

[0033] 214. Hinge structure;

[0034] 215. Control components;

[0035] 216. Locking arm;

[0036] 217. Gas spring;

[0037] 218. Handle;

[0038] 220. Roller shutter door;

[0039] 221. Drum;

[0040] 222. Pull rod;

[0041] L1. Spacing;

[0042] L2. Total length. Detailed Implementation

[0043] Typical embodiments embodying the features and advantages of this disclosure will be described in detail in the following description. It should be understood that this disclosure can have various variations in different embodiments without departing from the scope of this disclosure, and the descriptions and drawings therein are illustrative in nature and not intended to limit this disclosure.

[0044] In the following description of various exemplary embodiments of this disclosure, reference is made to the accompanying drawings, which form part of this disclosure, and which illustrate by way of example different exemplary structures, systems, and steps that can implement various aspects of this disclosure. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of this disclosure. Furthermore, while the terms “above,” “between,” “within,” etc., may be used in this specification to describe different exemplary features and elements of this disclosure, these terms are used herein only for convenience, such as the orientation according to the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this disclosure.

[0045] See Figure 1 This illustration represents a structural schematic diagram of the fire truck proposed in this disclosure, specifically showing the design of the fire truck body and part of the cargo compartment 100. In this exemplary embodiment, the fire truck proposed in this disclosure is described with an example of a cargo compartment 100 having a door at its rear. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the following specific embodiments to apply the relevant designs of this disclosure to other types of fire trucks (e.g., cargo compartment 100 having a door on its side), and these changes remain within the scope of the principles of the fire truck proposed in this disclosure.

[0046] like Figure 1 As shown, in one embodiment of this disclosure, the fire truck proposed in this disclosure includes a cargo box 100 and a door assembly 200. (See also...) Figures 2 to 8 , Figure 2 China representatively shows Figure 1 A magnified view of a portion of the image; Figures 3 to 5 The structural schematic diagrams of the door assembly 200 from several different perspectives are shown in representative ways. Figure 6 China representatively shows Figure 4 An enlarged schematic diagram of part A in the diagram; Figure 7 China representatively shows Figure 5 An enlarged schematic diagram of part B in the diagram; Figure 8 The diagram above shows a representative structural schematic of the hinge structure 214. The structure, connection method, and functional relationship of the main components of the fire truck door assembly 200 proposed in this disclosure will be described in detail below with reference to the above-mentioned figures.

[0047] like Figures 1 to 5As shown, in one embodiment of this disclosure, the side wall of the carriage 100 is provided with a first opening 101. The carriage door assembly 200 includes a tilting door 210 and a roller shutter door 220. The top end of the tilting door 210 is rotatably connected to the top edge of the first opening 101. The tilting door 210 is adjustable between a closed state and an open state. The tilting door 210 is provided with a second opening 2101. One end of the roller shutter door 220 is connected to a roller 221. The roller 221 is disposed on the inner side of the tilting door 210 and is located above the second opening 2101. The roller 221 can automatically roll up the roller shutter door 220. In other words, when the roller shutter door 220 is not subjected to external force (e.g., a downward pulling force applied by the user to the lever 222), the roller 221 can automatically roll up the roller shutter door 220 therein, thereby keeping the roller shutter door 220 in the open state of the second opening 2101. The other end of the roller shutter door 220 is connected to a pull rod 222. When the roller shutter door 220 is pulled out from the roller 221, the pull rod 222 is limited by the limiting member 211 provided on the tilting door 210, so that the roller shutter door 220 is kept in the pulled-out state and the second opening 2101 is closed. Through the above structural design, this disclosure can provide shelter from falling objects (such as rain, snow, flames, or construction debris) when the tilting door 210 is open and the roller shutter door 220 is closed, protecting the user operating at the first opening 101. In addition, this disclosure can avoid the space occupation caused by opening the compartment door assembly 200 when the tilting door 210 is closed and the roller shutter door 220 is open, which is suitable for the application of fire trucks in confined spaces. Accordingly, the fire truck proposed in this disclosure can take into account both better safety and wide applicability. Based on this, the present disclosure adopts the design of roller shutter 220 with roller 221, which can realize the automatic winding of roller shutter 220. After winding, roller shutter 220 occupies less space and has a more compact structure, avoiding excessive occupation of the interior space of carriage 100. At the same time, it avoids interference with other components inside carriage 100. In addition, it can also be adapted to make the second opening 2101 larger on the flip door 210, ensuring that the user's operation needs can be met in different opening modes.

[0048] like Figure 6As shown, in one embodiment of this disclosure, the door assembly 200 may further include a support wheel 212. The support wheel 212 is disposed on the inner side of the tilting door 210. Based on this, the portion of the roller shutter 220 extending from the roller 221 is supported by the support wheel 212, causing the portion of the roller shutter 220 extending from the roller 221 to first extend in a direction perpendicular to the tilting door 210, and then, after passing the support wheel 212, extend in a direction parallel to the tilting door 210. Through the above structural design, this disclosure can utilize the support wheel 212 to support the roller shutter 220, specifically providing rolling support, thus reducing friction while achieving the support function. Furthermore, after the roller 220 extends from the roller 221, it can bend and turn via the support wheel 212, ensuring effective closure of the top edge area of ​​the second opening 2101 by the roller shutter 220.

[0049] like Figure 6 As shown, based on the structural design of the door assembly 200 including the support wheel 212, in one embodiment of this disclosure, the door assembly 200 may further include a bracket 213. The bracket 213 is disposed on the inner side of the tilting door 210. Based on this, the roller 221 and the support wheel 212 can be respectively disposed on the bracket 213, with the support wheel 212 located between the roller 221 and the tilting door 210. Through the above structural design, this disclosure utilizes the bracket 213 to simultaneously house the roller 221 and the support wheel 212, resulting in a simple and easy-to-implement structure, reducing the number of parts, and ensuring a stable arrangement of the relative positions of the roller 221, the roller shutter door 220, and the support wheel 212.

[0050] like Figure 3 As shown, in one embodiment of this disclosure, the distance L1 between the top edge of the second opening 2101 of the flip door 210 and the top of the flip door 210 can account for less than 1 / 2 of the total length L2 of the flip door 210. Through the above structural design, since this disclosure uses a roller 221 to retract the roller shutter door 220, the flip door 210 does not need to reserve a large space on its upper inner side to arrange the roller shutter door 220 and its related structures (e.g., roller 221). This allows the top edge of the second opening 2101 to be closer to the top of the flip door 210, thereby further increasing the area of ​​the flip door 210 that can be used to set the second opening 2101 in the length direction (or height direction when the flip door 210 is closed). This makes it possible to set a larger second opening 2101, thus providing the user with more operating space when the flip door 210 is closed and the roller shutter door 220 is open, improving operational convenience.

[0051] like Figure 3As shown, in one embodiment of this disclosure, the pull rod 222 extends parallel to the width direction of the flip door 210. The length of the pull rod 222 is greater than the width of the second opening 2101. The two ends of the pull rod 222 extend beyond the two side edges of the second opening 2101 in the width direction and are located on the outside of the flip door 210. Through the above structural design, this disclosure can use the pull rod 222 to limit the position of the roller shutter door 220, preventing the end of the roller shutter door 220 extending from the roller 221 from retracting to the inside of the flip door 210, ensuring that the end of the roller shutter door 220 extending from the roller 221 is always located on the outside of the flip door 210, facilitating the user's operation to extend and retract the roller shutter door 220.

[0052] like Figure 3 As shown, based on the structural design that the length of the pull rod 222 is greater than the width of the second opening 2101, in one embodiment of this disclosure, two limiting members 211 can be provided on the outer side of the flip door 210. These two limiting members 211 are respectively located at the bottom ends of the two side edges of the second opening 2101 in the width direction, and the two limiting members 211 respectively limit and cooperate with the two ends of the pull rod 222. Through the above structural design, this disclosure can use the two limiting members 211 to limit the two ends of the pull rod 222 respectively, thereby enabling the roller shutter door 220 to obtain a more stable limiting and holding effect when closed.

[0053] like Figure 8 As shown, in one embodiment of this disclosure, the flip door 210 and the side wall can be rotatably connected via a hinge structure 214. The hinge structure 214 can be a piano hinge, and the material of the hinge structure 214 can be stainless steel. Through the above design, this disclosure can improve the durability of the hinge structure 214 and extend its service life.

[0054] like Figure 3 and Figure 7 As shown, in one embodiment of this disclosure, the tilting door 210 may be equipped with a door lock assembly. Specifically, the door lock assembly includes an operating member 215 and a locking arm 216. The operating member 215 is disposed on the outer side of the tilting door 210, and the locking arm 216 is disposed on the inner side of the tilting door 210. The operating member 215 and the locking arm 216 are connected via a pivot passing through the tilting door 210. When the user rotates the operating member 215, the locking arm 216 can be rotated to lock or unlock the locking arm 216. When the locking arm 216 is locked, part of the locking arm 216 is located on the inner side of the side wall, preventing the tilting door 210 from rotating relative to the side wall and keeping it closed. Through the above structural design, this disclosure can use the door lock assembly to lock and unlock the tilting door 210, making it easy for the tilting door 210 to remain locked when closed, and providing convenient operation. In addition, since the locking arm 216 is located inside the flip door 210, this disclosure enables the locking arm 216 to be protected by the flip door 210 and extend its service life.

[0055] like Figure 5 As shown, in one embodiment of this disclosure, a gas spring 217 can be connected to the tilting door 210 and the side wall. The two ends of the gas spring 217 are rotatably connected to the tilting door 210 and the side wall, respectively, and the gas spring 217 can support the tilting door 210 to remain in the open state. Specifically, the tilting door 210 and the side wall can each be provided with a fixed base, and the two ends of the gas spring 217 can be rotatably connected to the two fixed bases respectively. Through the above structural design, this disclosure can utilize the gas spring 217 to provide a certain thrust during the opening of the tilting door 210, and to provide support force to maintain the open state after the tilting door 210 is opened, reducing the force required for the user to open the tilting door 210 and further improving operational convenience.

[0056] like Figure 3 As shown, in one embodiment of this disclosure, a handle 218 may be provided on the outer side of the flip door 210.

[0057] In one embodiment of this disclosure, the fire truck proposed in this disclosure may further include a detection device. The detection device is used to detect the opening and closing status of the tilting door 210 and the roller shutter door 220. The detection device may be connected to an indicator light; the indicator light illuminates when at least one of the tilting door 210 and the roller shutter door 220 is open, and extinguishes when both are closed. Through the above structural design, this disclosure can provide alarm prompts using indicator lights. Furthermore, the indicator light can be positioned at the first opening 101 inside the vehicle compartment 100, so that when the indicator light is illuminated, it can illuminate areas inside the vehicle compartment 100, such as the control panel, providing lighting and further improving operational convenience.

[0058] In one embodiment of this disclosure, taking a fire truck including the aforementioned detection device as an example, the detection device can be connected to an alarm device. The alarm device can be, for example, a sound-emitting device (alarm bell, buzzer, etc.) or a light-emitting device (LED light, etc.). The alarm device can also be an executable program integrated into the driver's cab control panel (e.g., a vehicle-mounted display screen). When at least one of the tilting door 210 and the roller shutter door 220 is opened, the alarm device is activated, for example, by emitting an alarm sound. When both the tilting door 210 and the roller shutter door 220 are closed, the alarm device is deactivated. Through the above structural design, this disclosure can provide alarm prompts using an alarm device.

[0059] Specifically, when the roller shutter door 220 or the tilting door 210 is open, if the detection device cannot sense the roller shutter door 220 or the tilting door 210, the detection signal from the detection device can be transmitted to the central controller of the fire truck. The central controller then feeds back the signal to the alarm device on the control panel in the driver's cab to issue an alarm. At the same time, the indicator light installed inside the door assembly 200 turns on to facilitate operation of the water and electrical control panels at night. Before starting the vehicle, the driver will see an indicator light indicating that the door is not closed on the control panel in the driver's cab (or hear an alarm sound, or see a message on the vehicle's display screen), reminding the driver to close the door assembly 200.

[0060] like Figure 1 As shown, in one embodiment of this disclosure, the door assembly 200 may be disposed at the rear of the carriage 100. In other embodiments of this disclosure, the door assembly 200 may also be disposed on the side of the carriage 100, and is not limited to this embodiment.

[0061] It should be noted that the fire trucks shown in the accompanying drawings and described in this specification are merely a few examples among many fire trucks to which the principles of this disclosure can be applied. It should be clearly understood that the principles of this disclosure are by no means limited to any details or components of the fire trucks shown in the accompanying drawings or described in this specification.

[0062] In summary, the fire truck disclosed herein includes a truck body 100 and a door assembly 200; the truck body 100 has a first opening 101 in its wall; the door assembly 200 includes a tilting door 210 and a roller shutter door 220; the top of the tilting door 210 is rotatably connected to the top edge of the first opening 101, and the tilting door 210 is adjustable between a closed state and an open state, and the tilting door 210 has a second opening 2101; one end of the roller shutter door 220 is connected to a roller 221, the roller 221 is located on the inner side of the tilting door 210 and above the second opening 2101, and the roller 221 is configured to automatically roll up the roller shutter door 220; the other end of the roller shutter door 220 is connected to a pull rod 222, and when the roller shutter door 220 is pulled out from the roller 221, the pull rod 222 is limited by a limiting member 211 provided on the tilting door 210, so that the roller shutter door 220 remains in the pulled-out state and closes the second opening 2101. Through the above structural design, this disclosure can provide shelter from falling objects when the tilting door 210 is open and the roller shutter door 220 is closed, protecting users operating at the first opening 101. Furthermore, this disclosure can avoid the space occupation caused by opening the compartment door assembly 200 when the tilting door 210 is closed and the roller shutter door 220 is open, making it suitable for fire truck applications in confined spaces. Therefore, the fire truck proposed in this disclosure can balance good safety and wide applicability. Based on this, the design of the roller shutter door 220 using a roller 221 for retracting allows for automatic retraction of the roller shutter door 220. The retracted roller shutter door 220 occupies less space, resulting in a more compact structure, avoiding excessive occupation of the interior space of the compartment 100, and preventing interference with other components inside the compartment 100. Additionally, it allows for a larger second opening 2101 on the tilting door 210, ensuring that user operation needs are met in different opening modes.

[0063] The exemplary embodiments of fire trucks proposed in this disclosure have been described and / or illustrated in detail above. However, the embodiments of this disclosure are not limited to the specific embodiments described herein; rather, components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may also be used in combination with other components and / or steps of other embodiments. In describing the elements / components / etc. described and / or illustrated herein, the terms “a,” “an,” and “the above” are used to indicate the presence of one or more elements / components / etc. The terms “comprising,” “including,” and “having” are used to indicate an open-ended inclusion and to mean that additional elements / components / etc. may exist in addition to those listed. Furthermore, the terms “first” and “second” in the claims and description are used only as illustrative marks and are not intended to limit the numerical scope of the subject matter.

[0064] Although the fire trucks proposed in this disclosure have been described according to different specific embodiments, those skilled in the art will recognize that modifications may be made to the implementation of this disclosure within the spirit and scope of the claims.

Claims

1. A fire truck, characterized in that, include: The carriage (100) has a first opening (101) in its wall; The door assembly (200) includes: A flip door (210) is rotatably connected at its top to the top edge of the first opening (101). The flip door (210) is adjustable between a closed state and an open state. The flip door (210) is provided with a second opening (2101). A roller shutter (220) is connected at one end to a roller (221), which is located on the inner side of the flip door (210) and above the second opening (2101). The roller (221) is configured to automatically roll up the roller shutter (220). The other end of the roller shutter (220) is connected to a pull rod (222). When the roller shutter (220) is pulled out from the roller (221), the pull rod (222) is limited by a limiting member (211) provided on the flip door (210) so that the roller shutter (220) remains in the pulled-out state and closes the second opening (2101).

2. The fire truck according to claim 1, characterized in that, The door assembly (200) also includes: Support wheels (212) are provided on the inner side of the flip door (210); The portion of the roller shutter door (220) extending out of the roller (221) is supported by the support wheel (212), and the portion of the roller shutter door (220) extending out of the roller (221) first extends in a direction perpendicular to the flip door (210), and after passing the support wheel (212), it extends in a direction parallel to the flip door (210).

3. The fire truck according to claim 2, characterized in that, The door assembly (200) also includes: A bracket (213) is provided on the inner side of the flip door (210); The roller (221) and the support wheel (212) are respectively disposed on the bracket (213), and the support wheel (212) is located between the roller (221) and the flip door (210).

4. The fire truck according to claim 1, characterized in that, The distance (L1) between the top edge of the second opening (2101) and the top of the flip door (210) accounts for less than 1 / 2 of the total length (L2) of the flip door (210).

5. The fire truck according to claim 1, characterized in that, The pull rod (222) extends parallel to the width direction of the flip door (210). The length of the pull rod (222) is greater than the width of the second opening (2101). The two ends of the pull rod (222) extend beyond the two sides of the second opening (2101) in the width direction and are located on the outside of the flip door (210).

6. The fire truck according to claim 5, characterized in that, The outer side of the flip door (210) is provided with two limiting members (211). The two limiting members (211) are respectively located at the bottom of the two sides of the second opening (2101) in the width direction, and the two limiting members (211) are respectively limited and cooperated with the two ends of the pull rod (222).

7. The fire truck according to claim 1, characterized in that, The flip door (210) is rotatably connected to the compartment wall via a hinge structure (214), the hinge structure (214) being made of stainless steel.

8. The fire truck according to claim 1, characterized in that, The flip door (210) is equipped with a door lock assembly; the door lock assembly includes an operating member (215) and a locking arm (216). The operating member (215) is located on the outer side of the flip door (210), and the locking arm (216) is located on the inner side of the flip door (210). The operating member (215) and the locking arm (216) are connected via a pivot passing through the flip door (210). When the user rotates the operating member (215), the locking arm (216) can be rotated to lock or unlock the locking arm (216). When the locking arm (216) is locked, part of the locking arm (216) is located on the inner side of the compartment wall, so that the flip door (210) cannot rotate relative to the compartment wall and remains closed.

9. The fire truck according to claim 1, characterized in that, The flip door (210) is connected to the compartment wall by a gas spring (217). The two ends of the gas spring (217) are rotatably connected to the flip door (210) and the compartment wall, respectively. The gas spring (217) can support the flip door (210) to remain in the open state.

10. The fire truck according to claim 1, characterized in that, The fire truck also includes: A detection device is provided for detecting the opening and closing status of the tilting door (210) and the roller shutter door (220). The detection device is connected to an alarm device and / or an indicator light. When at least one of the tilting door (210) and the roller shutter door (220) is open, the alarm device sounds and / or the indicator light is activated. When both the tilting door (210) and the roller shutter door (220) are closed, the alarm device and / or the indicator light is turned off.

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