Overhead door assembly and fire apparatus

Abstract

This utility model relates to the field of upward-opening door technology, specifically to an upward-opening door assembly and a fire truck. The upward-opening door assembly includes an upward-opening door panel, a door frame assembly, a door frame edging, a support mechanism, and a locking mechanism. The upward-opening door panel covers the outer surface of the door frame assembly. The top of the door frame assembly is rotatably connected to the inner top of the doorway of the truck body. Along the length of the doorway, the door frame edging is respectively disposed on the side wall of the doorway. A sealing strip is provided on the side of the door frame edging away from the side wall of the doorway. One end of the support mechanism is disposed on the side wall of the doorway, and the other end of the support mechanism is disposed on the inner wall of the door frame assembly. The locking mechanism is disposed inside the door frame assembly. The door frame edging has a lock hole, and the locking tongue of the locking mechanism can cooperate with the lock hole to lock or unlock the door frame assembly and the door frame edging. This efficiently locks the truck body doorway while ensuring the waterproof and sealing performance of the upward-opening door.

Description

Technical Field

[0001] This utility model relates to the field of upward-opening door technology, specifically to an upward-opening door assembly and a fire truck. Background Technology

[0002] Currently, all fire trucks used for logistical support are equipped with undercarriages for carrying supplies. This reduces the space occupied by fuel tanks and other structures within the truck bed or cargo box, while also improving the overall aesthetics of the vehicle. As crucial transportation tools for disaster relief, fire trucks require frequent checks on their functionality and reliability. To address the aforementioned issues, most current designs for undercarriages in fire trucks incorporate an upward-opening door mechanism at the doorway within the undercarriage.

[0003] However, existing fire truck top-hinged door structures often have problems such as insufficient waterproofing, which affects the utilization efficiency and safety of the fire truck's interior space. Utility Model Content

[0004] The purpose of this utility model includes, for example, providing an upward-opening door assembly and a fire truck, which can efficiently lock the vehicle compartment door opening while ensuring the waterproof sealing performance of the upward-opening door.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides an upward-opening door assembly, which cooperates with a vehicle compartment, including:

[0007] Upward-opening door panel, door frame assembly, door frame edging, strut mechanism, locking mechanism;

[0008] The upward-opening door panel covers the outer surface of the door frame assembly;

[0009] The top of the door frame assembly is rotatably connected to the top inner side of the door opening of the carriage, so that the door frame assembly can be flipped up to open the door opening or lowered to cover the door opening;

[0010] Along the length of the door opening, the door frame edging is respectively disposed on the side wall of the door opening; when the door frame assembly is lowered to cover the door opening, the door frame edging is located between the side wall of the door opening and the door frame assembly; a sealing strip is disposed on the side of the door frame edging away from the side wall of the door opening, and the sealing strip is used to seal the gap between the door frame edging and the door frame assembly;

[0011] One end of the strut mechanism is disposed on the side wall of the door opening, and the other end of the strut mechanism is disposed on the inner wall of the door frame assembly;

[0012] The locking mechanism is located inside the door frame assembly; the door frame edge has a lock hole, and the locking tongue of the locking mechanism can cooperate with the lock hole to lock or unlock the door frame assembly and the door frame edge.

[0013] In an optional embodiment, the door frame edging includes a plate, a first extension plate, and a second extension plate;

[0014] Along the width direction of the plate, the first extension plate is disposed at one end of the plate, and the second extension plate is disposed at the other end of the plate, with both the first extension plate and the second extension plate having an angle with the plate;

[0015] Along the thickness direction of the plate, the first extension plate extends toward the door frame assembly, and the second extension plate extends away from the door frame assembly; the second extension plate is disposed on the outer periphery of the door opening.

[0016] In an optional embodiment, both the first extension plate and the second extension plate are perpendicular to the plate body.

[0017] In an optional embodiment, the door frame edging further includes a panel; the panel is disposed on the side of the panel away from the door frame assembly;

[0018] The keyhole is provided on the plate and the panel.

[0019] In an optional embodiment, the sealing strip is disposed on the plate along the height direction of the door frame edging.

[0020] In an optional embodiment, it further includes an upper support and a lower support; the upper support is disposed on the inner side of the door frame assembly; the lower support is disposed on the inner side wall of the door opening; the top of the strut mechanism is rotatably disposed on the upper support, and the bottom of the strut mechanism is rotatably disposed on the lower support.

[0021] And / or, the strut mechanism is a gas spring strut.

[0022] In an optional embodiment, the door frame assembly includes an outer frame, a crossbeam, and connecting columns;

[0023] The crossbeams are respectively disposed between the two side walls of the outer frame, so that the crossbeams, the two side walls of the outer frame, and the bottom of the outer frame enclose a receiving space, and the locking mechanism is disposed within the receiving space;

[0024] The connecting column abuts against the two side walls of the outer frame, and the top of the connecting column is connected to the top of the outer frame, and the bottom of the connecting column is connected to the top of the crossbeam.

[0025] The top of the strut mechanism is mounted on the connecting column.

[0026] In an optional embodiment, a cover plate is also included, which is disposed on the inner wall of the door frame assembly and is used to cover the receiving space to conceal the locking mechanism.

[0027] In an optional embodiment, the locking mechanism includes a handle, a lock disc, a pull rod, a locking plate, and a locking tongue;

[0028] The handle is connected to the lock disc, and the handle is located on the outer wall of the door frame assembly;

[0029] One end of the pull rod is eccentrically connected to the lock disc, and the other end of the pull rod is connected to the lock tongue through a locking plate;

[0030] By turning the handle, the lock disc can be rotated, causing the pull rod to move laterally and thus causing the lock tongue to insert into or disengage from the lock hole.

[0031] Secondly, this utility model provides a fire truck, which includes the upward-opening door assembly described in any of the foregoing embodiments.

[0032] The beneficial effects of this utility model embodiment include, for example:

[0033] The upward-opening door assembly of this solution includes an upward-opening door panel, a door frame assembly, a door frame edging, a support mechanism, and a locking mechanism. The upward-opening door panel covers the outer surface of the door frame assembly to maintain the flatness and neatness of the overall surface of the upward-opening door. The support mechanism works with the door frame assembly to enable the upward-opening door assembly to lower to cover the doorway or open to open the doorway, thus facilitating easy loading and unloading of items in the vehicle compartment. The door frame edging is installed on the side walls of the doorway to ensure a secure connection between the upward-opening door assembly and the doorway. The door frame edging also works with the locking mechanism to lock or unlock the upward-opening door. The sealing strip on the door frame edging ensures a tight seal between the edging and the door frame assembly, thus guaranteeing the waterproof and dustproof performance of the upward-opening door assembly. In summary, this upward-opening door assembly has the advantages of simple structure, convenient operation, and excellent sealing, waterproofing, and dustproofing. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1This is a schematic diagram of the structure of the upward-opening door assembly according to an embodiment of the present utility model;

[0036] Figure 2 This is a structural schematic diagram of the upward-opening door assembly from another perspective of an embodiment of the present utility model;

[0037] Figure 3 This is a structural schematic diagram of the upward-opening door assembly from another perspective of an embodiment of the present utility model;

[0038] Figure 4 This is a partially cross-sectional structural diagram of the upward-opening door assembly according to an embodiment of the present utility model;

[0039] Figure 5 This is a structural schematic diagram of the upward-opening door assembly from another perspective, representing an embodiment of the present utility model.

[0040] Icons: 12-Cover plate; 13-Long row of hinges; 21-Door opening; 100-Upward-opening door panel; 200-Door frame assembly; 210-Outer frame; 220-Crossbeam; 230-Connecting post; 300-Door frame edging; 301-Key hole; 310-First extension plate; 320-Second extension plate; 330-Plate body; 340-Panel; 400-Support mechanism; 500-Locking mechanism; 510-Handle; 520-Lock disc; 530-Pull rod; 540-Lock plate; 550-Lock tongue; 610-Upper support; 620-Lower support. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0046] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0047] Please refer to Figure 1 and Figure 2 This embodiment provides an upward-opening door assembly that works with the carriage, including an upward-opening door panel 100, a door frame assembly 200, a door frame edging 300, a support rod mechanism 400, and a locking mechanism 500.

[0048] The upward-opening door panel 100 covers the outer surface of the door frame assembly 200;

[0049] The top of the door frame assembly 200 is rotatably connected to the top inner side of the door opening 21 of the carriage, so that the door frame assembly 200 can be flipped up to open the door opening 21 or lowered to cover the door opening 21.

[0050] Along the length of the door opening 21, door frame edging 300 is respectively provided on the side wall of the door opening 21; when the door frame assembly 200 is lowered to cover the door opening 21, the door frame edging 300 is located between the side wall of the door opening 21 and the door frame assembly 200; a sealing strip is provided on the side of the door frame edging 300 away from the side wall of the door opening 21, and the sealing strip is used to seal the gap between the door frame edging 300 and the door frame assembly 200;

[0051] One end of the strut mechanism 400 is located on the side wall of the door opening 21, and the other end of the strut mechanism 400 is located on the inner wall of the door frame assembly 200.

[0052] The locking mechanism 500 is located inside the door frame assembly 200; the door frame edge 300 has a lock hole 301, and the locking tongue 550 of the locking mechanism 500 can cooperate with the lock hole 301 to lock or unlock the door frame assembly 200 and the door frame edge 300.

[0053] The upward-opening door assembly of this solution includes an upward-opening door panel 100, a door frame assembly 200, a door frame edging 300, a support rod mechanism 400, and a locking mechanism 500. The upward-opening door panel 100 covers the outer surface of the door frame assembly 200 to maintain the flatness and neatness of the overall surface of the upward-opening door. The support rod mechanism 400 cooperates with the door frame assembly 200 to enable the upward-opening door assembly to lower and cover the door opening 21 or open the door opening 21, thereby facilitating easy loading and unloading of items in the vehicle compartment. The door frame edging 300 is respectively provided on the side walls of the door opening 21 to ensure a stable connection between the upward-opening door assembly and the door opening 21. Simultaneously, the door frame edging 300 can also cooperate with the locking mechanism 500 to lock or unlock the upward-opening door. The sealing strip on the door frame edging 300 ensures the sealing between the door frame edging 300 and the door frame assembly 200, thereby ensuring the waterproof and dustproof performance of the upward-opening door assembly. In summary, this type of lift-up door assembly has the advantages of simple structure, convenient operation, and excellent sealing, waterproofing, and dustproofing.

[0054] Please continue reading. Figures 1 to 5 To learn more about the structural details of the top-hinged door assembly.

[0055] As can be seen from the figure, in this embodiment, the door frame assembly 200 is mounted on the top of the door opening 21 via a long row of hinges 13. Furthermore, the door frame edging 300 extends from the top of the door opening 21 to the top of the door opening 21, thereby ensuring complete coverage of both sides of the perimeter of the door opening 21 by the edging.

[0056] Optionally, the strut mechanism 400 is a gas spring strut. The continuous action of the gas spring is key to its stable opening. This design cleverly utilizes the elasticity of the gas spring, enabling the door to effectively overcome gravity and remain open, thereby preventing the door from falling due to gravity and ensuring operational stability and safety.

[0057] from Figure 3 As can be seen from the optional embodiment, the door frame edging 300 includes a plate 330, a first extension plate 310, and a second extension plate 320. Along the width direction of the plate 330, the first extension plate 310 is disposed at one end of the plate 330, and the second extension plate 320 is disposed at the other end of the plate 330. Both the first extension plate 310 and the second extension plate 320 have an angle with the plate 330. Along the thickness direction of the plate 330, the first extension plate 310 extends toward the direction close to the door frame assembly 200, and the second extension plate 320 extends toward the direction away from the door frame assembly 200. The second extension plate 320 is disposed on the outer periphery of the door opening 21.

[0058] Such a door frame edging 300 can cover and connect the perimeter of the door opening 21, while also ensuring a stable connection between the door frame edging 300 and the door frame assembly 200.

[0059] In an optional embodiment, both the first extension plate 310 and the second extension plate 320 are perpendicular to the plate body 330. This ensures that the door frame edging 300 fits snugly against the door opening 21, thereby further guaranteeing the waterproof and dustproof effect of the lift-up door.

[0060] In an optional embodiment, the door frame edging 300 further includes a panel 340; the panel 340 is disposed on the side of the plate 330 away from the door frame assembly 200; a lock hole 301 is disposed on the plate 330 and the panel 340. By combining the plate 330 and the panel 340, the thickness of the door frame edging 300 can be increased, thereby facilitating the placement of the lock hole 301 that engages with the latch 550. In this way, while reducing the overall weight and volume of the door frame edging 300 and lowering costs, the locking mechanism 500 can be ensured to operate stably.

[0061] In an optional embodiment, a sealing strip is disposed on the panel 330 along the height direction of the door frame edging 300. Specifically, the sealing strip extends from the top of the door opening 21 to the bottom of the door opening 21. Optionally, the sealing strip is a side-bubble rubber strip. Side-bubble rubber strips have good waterproof sealing properties.

[0062] from Figure 4 and Figure 5 As can be seen from the optional embodiment, the upward-opening door assembly also includes an upper support 610 and a lower support 620; the upper support 610 is disposed on the inner side of the door frame assembly 200; the lower support 620 is disposed on the inner side wall of the door opening 21; the top of the strut mechanism 400 is rotatably disposed on the upper support 610, and the bottom of the strut mechanism 400 is rotatably disposed on the lower support 620.

[0063] As can be seen from the figure above, in an optional embodiment, the door frame assembly 200 includes an outer frame 210, a crossbeam 220, and a connecting post 230. The crossbeam 220 is respectively disposed between the two side walls of the outer frame 210, so that the crossbeam 220, the two side walls of the outer frame 210, and the bottom of the outer frame 210 enclose a receiving space, and the locking mechanism 500 is disposed within the receiving space. The connecting post 230 abuts against the two side walls of the outer frame 210, and the top of the connecting post 230 is connected to the top of the outer frame 210, and the bottom of the connecting post 230 is connected to the top of the crossbeam 220. The top of the strut mechanism 400 is disposed on the connecting post 230. The connecting post 230 can provide an installation point for the upper support 610, and at the same time can avoid interference when the door frame assembly 200 is flipped up.

[0064] In an optional embodiment, the lift-up door assembly further includes a cover plate 12 disposed on the inner wall of the door frame assembly 200, and the cover plate 12 is used to cover the receiving space to conceal the locking mechanism 500. This arrangement enables the locking mechanism 500 to provide better concealment.

[0065] In an optional embodiment, the locking mechanism 500 includes a handle 510, a lock disc 520, a pull rod 530, a locking plate 540, and a bolt 550. The handle 510 is connected to the lock disc 520 and is located on the outer wall of the door frame assembly 200. One end of the pull rod 530 is eccentrically connected to the lock disc 520, and the other end of the pull rod 530 is connected to the bolt 550 via the locking plate 540. By rotating the handle 510, the lock disc 520 can be rotated, causing the pull rod 530 to move laterally and thus causing the bolt 550 to insert into or disengage from the lock hole 301. Such a locking mechanism 500 has the advantages of simple structure and convenient operation.

[0066] Secondly, this utility model provides a fire truck that includes the upward-opening door assembly of any of the foregoing embodiments. Such a fire truck has better waterproofing, and is simple to operate and easy to maintain.

[0067] In summary, this utility model embodiment provides an upward-opening door assembly and a fire truck, which have at least the following advantages:

[0068] Waterproof sealing design: The 300mm edging of the door frame, in conjunction with the sealing strip, creates a sealing effect. Through physical blocking and the elasticity of the sealing strip, it effectively prevents the intrusion of rainwater and dust, thereby improving waterproof performance.

[0069] Extendable adaptive gas spring: By utilizing the adaptive pressure adjustment of the gas spring, the door can always be stably supported during the upward opening process, avoiding swaying caused by insufficient support.

[0070] Concealed locking mechanism 500: The lock plate and lock rod held by the gas spring enable the door to respond quickly to the opening operation when locked. At the same time, the pop-out and retraction of the bolt 550 are controlled by the handle 510, which simplifies the operation process.

[0071] Compact structure: The concealed design reduces the number of external mechanical parts on the door, making the overall structure more compact, which not only saves space but also improves the overall aesthetics of the design.

[0072] Easy maintenance: Due to the reduction of external mechanical parts, the maintenance of the door is mainly focused on the inspection and cleaning of the internal lock plates and lock rods, which simplifies the maintenance process and reduces maintenance costs.

[0073] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A lift-up door assembly, used in conjunction with a carriage, characterized in that, include: Upward-opening door panel (100), door frame assembly (200), door frame edging (300), strut mechanism (400), locking mechanism (500). The upward-opening door panel (100) covers the outer surface of the door frame assembly (200); The top of the door frame assembly (200) is rotatably connected to the top inner side of the door opening (21) of the carriage, so that the door frame assembly (200) can be flipped up to open the door opening (21) or lowered to cover the door opening (21). Along the length of the door opening (21), the door frame edging (300) is respectively disposed on the side wall of the door opening (21); when the door frame assembly (200) falls down to cover the door opening (21), the door frame edging (300) is located between the side wall of the door opening (21) and the door frame assembly (200); a sealing strip is provided on the side of the door frame edging (300) away from the side wall of the door opening (21), and the sealing strip is used to seal the gap between the door frame edging (300) and the door frame assembly (200); One end of the strut mechanism (400) is disposed on the side wall of the door opening (21), and the other end of the strut mechanism (400) is disposed on the inner wall of the door frame assembly (200); The locking mechanism (500) is located inside the door frame assembly (200); the door frame edging (300) has a lock hole (301), and the locking tongue (550) of the locking mechanism (500) can cooperate with the lock hole (301) to lock or unlock the door frame assembly (200) and the door frame edging (300).

2. The upward-opening door assembly according to claim 1, characterized in that: The door frame edging (300) includes a plate (330), a first extension plate (310), and a second extension plate (320); Along the width direction of the plate (330), the first extension plate (310) is disposed at one end of the plate (330), and the second extension plate (320) is disposed at the other end of the plate (330). Both the first extension plate (310) and the second extension plate (320) have an angle with the plate (330). Along the thickness direction of the plate (330), the first extension plate (310) extends toward the door frame assembly (200), and the second extension plate (320) extends toward the door frame assembly (200); the second extension plate (320) is disposed on the outer periphery of the door opening (21).

3. The upward-opening door assembly according to claim 2, characterized in that: Both the first extension plate (310) and the second extension plate (320) are perpendicular to the plate body (330).

4. The upward-opening door assembly according to claim 2, characterized in that: The door frame edging (300) also includes a panel (340); the panel (340) is disposed on the side of the panel (330) away from the door frame assembly (200); The lock hole (301) is provided on the plate (330) and the plate (340).

5. The upward-opening door assembly according to claim 2, characterized in that: The sealing strip is disposed on the plate (330) along the height direction of the door frame edging (300).

6. The upward-opening door assembly according to claim 1, characterized in that: It also includes an upper support (610) and a lower support (620); the upper support (610) is disposed on the inner side of the door frame assembly (200); the lower support (620) is disposed on the inner side wall of the door opening (21); the top of the strut mechanism (400) is rotatably disposed on the upper support (610), and the bottom of the strut mechanism (400) is rotatably disposed on the lower support (620). And / or, the strut mechanism (400) is a gas spring strut.

7. The upward-opening door assembly according to claim 1, characterized in that: The door frame assembly (200) includes an outer frame (210), a crossbeam (220), and a connecting column (230); The crossbeams (220) are respectively disposed between the two side walls of the outer frame (210) so that the crossbeams (220), the two side walls of the outer frame (210) and the bottom of the outer frame (210) enclose a receiving space, and the locking mechanism (500) is disposed within the receiving space; The connecting column (230) abuts against the two side walls of the outer frame (210), and the top of the connecting column (230) is connected to the top of the outer frame (210), and the bottom of the connecting column (230) is connected to the top of the crossbeam (220). The top of the strut mechanism (400) is disposed on the connecting column (230).

8. The upward-opening door assembly according to claim 7, characterized in that: It also includes a cover plate (12) disposed on the inner wall of the door frame assembly (200) and the cover plate (12) is used to cover the receiving space to hide the locking mechanism (500).

9. The upward-opening door assembly according to claim 1, characterized in that: The locking mechanism (500) includes a handle (510), a lock disc (520), a pull rod (530), a locking plate (540), and a locking tongue (550). The handle (510) is connected to the lock disc (520), and the handle (510) is located on the outer wall of the door frame assembly (200); One end of the pull rod (530) is eccentrically connected to the lock disc (520), and the other end of the pull rod (530) is connected to the lock tongue (550) through the insert lock plate (540); By turning the handle (510), the lock disc (520) can be rotated, so that the pull rod (530) moves laterally and causes the latch (550) to insert into or disengage from the lock hole (301).

10. A fire truck, characterized in that: The fire truck includes the upward-opening door assembly as described in any one of claims 1-9.

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