Upturning door of vehicle-mounted cabin

The upward-opening door structure, driven by a four-bar hinge and pneumatic struts, combined with composite materials and wave-absorbing materials, solves the problems of bulky and insufficient stealth of vehicle cabin door structures, achieving a lightweight design with seamless sealing and stealth effects.

CN223605544UActive Publication Date: 2025-11-28JIANGSU JIECHENG VEHICLE ELECTRONICS INFO ENG CO LTD
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Patent Information

Application Number
CN202423099054.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-11-28
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing vehicle-mounted cabin door structures are bulky, with door frames, hinges, and gaps visible from the front, failing to meet the high mobility and stealth requirements of modern transport vehicles.

Method used

The upward-opening door structure, driven by a four-bar hinge and pneumatic struts, combines a carbon fiber tube frame, a carbon fiber inner skin, and a glass fiber outer skin, filled with PMI foam material, and sandwiched with copper and nickel mesh inside the skin, plus sealing strips and wave-absorbing agents, to achieve a seamless seal and stealth effect.

Benefits of technology

It achieves a seamless seal, reduces the exposure of door frames and hinges, improves the overall aesthetics and stealth capabilities of the vehicle cabin, and reduces weight and space occupation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vehicle-mounted cabin upturning door which comprises an upturning door plate, a carbon fiber inner skin and a glass fiber outer skin are respectively fixed on the inner side and the outer side of a carbon fiber tube framework of the upturning door plate, PMI (polymethacrylimide) foam materials are filled in the carbon fiber tube framework, and PMI foam materials added with wave-absorbing auxiliaries are filled outside the carbon fiber tube framework. An upturning door plate special-shaped aluminum alloy frame with a plurality of sealing strip grooves is fixed on the periphery of the carbon fiber inner skin, and the vehicle-mounted cabin body special-shaped aluminum alloy door frame and the upturning door plate special-shaped aluminum alloy frame are respectively provided with a plurality of sealing strips. And the vehicle-mounted cabin body special-shaped aluminum alloy door frame and the upturning door plate special-shaped aluminum alloy frame are mutually sealed through a plurality of extruded sealing strips. The upturning door has excellent integrity, attractiveness and invisibility, and the upturning door is made of high-strength composite materials, so that the upturning door is light in weight.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle-mounted cabin door, especially an upward opening upturning door integrated with the side of the vehicle-mounted cabin, and belongs to the technical field of special vehicles. BACKGROUND

[0002] The vehicle-mounted cabin serves as a transport carrier for instruments and equipment, and has the functions of sealing, dustproof, rainproof, shielding and stealth, and the cabin door structure has a vital influence on the functions of the vehicle-mounted cabin. At present, the skeleton of the vehicle-mounted cabin door and the door frame of the vehicle-mounted cabin are generally made of aluminum alloy profiles, the two sides of the vehicle-mounted cabin door are sealed with aluminum skin, the skeleton is filled with polyurethane foam material, the vehicle-mounted cabin door is hinged to the adjacent part of the door frame through several exposed hinges, and the cabin door is locked and closed through a door lock. The cabin door structure is heavy, the door frame, hinges and door gap are visible on the front, and cannot meet the development needs of high mobility and stealth of modern transport carriers CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a vehicle-mounted cabin upturning door without door gap on the front, with double-layer sealing, good shielding and stealth, and without occupying the upper space in the opening track.

[0004] The utility model is realized through the following technical schemes:

[0005] A vehicle-mounted cabin upturning door, comprising an upturning door plate, several four-bar linkage hinges and two pneumatic struts, the fixed seats of the four-bar linkage hinges are fixed on the two end corner parts and the middle part of the cabin top wall respectively, the movable seats of the four-bar linkage hinges are fixed on the inner side surfaces of the upper corner part and the middle part of the upturning door plate respectively, the end heads of the links of the four-bar linkage hinges are hinged to the one end of the corresponding fixed seat and movable seat respectively, and the two ends of the pneumatic struts are hinged to the other end of the corresponding fixed seat and the lower pneumatic strut seat on the inner side of the lower part of the cabin side wall respectively; the carbon fiber tube skeleton of the upturning door plate is fixed with carbon fiber inner skin and glass fiber outer skin on the inner and outer sides respectively, the carbon fiber tube skeleton is filled with PMI foam material, the carbon fiber tube skeleton is filled with PMI foam material added with wave-absorbing additives outside, the upturning door plate special-shaped aluminum alloy frame with several sealing strip grooves is fixed on the outer periphery of the carbon fiber inner skin, and the upturning door plate special-shaped aluminum alloy frame is adjacent to the carbon fiber tube skeleton through the carbon fiber inner skin; the vehicle-mounted cabin special-shaped aluminum alloy door frame and the upturning door plate special-shaped aluminum alloy frame are respectively provided with several sealing strips, and when the upturning door plate is closed, the vehicle-mounted cabin special-shaped aluminum alloy door frame and the upturning door plate special-shaped aluminum alloy frame are sealed to each other through the several compressed sealing strips.

[0006] The utility model can also be further realized through the following technical measures.

[0007] Further, the carbon fiber inner skin is clamped with 180-200 mesh copper mesh and nickel mesh.

[0008] Further, the car-mounted cabin body is sealed by the clamping buckle sealing strip at the stopper of the special-shaped aluminum alloy door frame, the D-shaped sealing strip installed in the outer groove of the special-shaped aluminum alloy frame of the upturned door plate, and the shielding strip installed in the inner groove.

[0009] Further, the cross section of the carbon fiber tube skeleton of the upturned door plate is in the shape of a Chinese character 'kou', which is processed by using PMI foam material with a density of 75 kg / m 3 The outer circumferential surface of the carbon fiber tube skeleton is wrapped with a layer of unidirectional carbon fiber prepreg with a strength of T300 grade.

[0010] Further, the special-shaped aluminum alloy frame of the upturned door plate and the special-shaped aluminum alloy door frame of the car-mounted cabin body are both made of 6005-T5 high-strength aluminum alloy profiles.

[0011] The upturned door and the cabin body are hinged by the built-in four-bar linkage, so that the upturned door covers the entire side surface of the cabin body after being closed, and the door frame, the door gap and the hinge cannot be seen, which has excellent integrity and aesthetic appearance, and is also more conducive to the stealth of the upturned door. The upturned door plate adopts the structure of carbon fiber tube skeleton, carbon fiber inner skin and glass fiber outer skin, and the carbon fiber inner skin is clamped with 180-200 mesh copper mesh and nickel mesh, which effectively improves the electromagnetic shielding capability of the car-mounted cabin body. Thus, the glass fiber outer skin on the outer side of the upturned door plate serves as a wave-transparent layer, the wave-absorbing foam material filled in the carbon fiber tube skeleton serves as a wave-absorbing layer, and the carbon fiber inner skin on the inner side of the upturned door plate serves as a reflecting layer, which effectively improves the stealth capability of the car-mounted cabin body. The upturned door plate of the utility model is made of high-strength composite material, which greatly reduces the thickness and weight of the upturned door plate, and realizes the lightweight of the upturned door.

[0012] The advantages and characteristics of the utility model will be illustrated and explained through the following non-limiting description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the inside view of the car-mounted cabin body when the upturned door plate is closed;

[0014] Figure 2 is the outside view of the car-mounted cabin body when the upturned door plate is closed;

[0015] Figure 3 is the cross-sectional view of the car-mounted cabin body when the upturned door plate is opened to the position;

[0016] Figure 4 is Figure 2 the A-A sectional view of the upturned door plate;

[0017] Figure 5 isFigure 3 Enlarged view of part I. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings and examples.

[0019] As Figures 1-5 shown, the utility model includes upturn door plate 1, 3 four connecting rod hinges 2 and 2 pneumatic struts 3, and the fixed seat 21 of four connecting rod hinge 2 is fixed at the end corner of cabin top wall 101 and the middle part of cabin top wall 101 respectively, and the movable seat 22 of four connecting rod hinge 2 is fixed on the inner side surface of the upper corner and the middle part of upturn door plate 1 respectively, and the end of each connecting rod 23 of four connecting rod hinge 2 is hinged with the one end of corresponding fixed seat 21 and movable seat 22 respectively, and the two ends of pneumatic strut 3 are hinged with the other end of corresponding fixed seat 21 and the lower pneumatic strut seat 31 of the inner side of the lower part of cabin side wall 102 respectively. Three-point locking mechanism 8 is installed at the lower end of upturn door plate 1, when upturn door needs to be opened, special handle is inserted into lock hole 103 to rotate and unlock, and dark pull handle 104 is installed beside lock hole 103, and when upturn door is unlocked, only needs to pull dark pull handle 104 gently, and upturn door plate 1 can be lifted to the fully opened position as Figure 3 shown through pneumatic strut 3, and the movement track of upturn door when being opened does not occupy the upper space. When upturn door plate 1 needs to be closed, directly presses down upturn door plate 1 or uses special pull hook to hook upturn door plate 1 inner side lower part ring screw 5 in vehicle-mounted shelter, and after upturn door plate 1 is closed in place, special handle is used to lock three-point locking mechanism 8 to lock.

[0020] As Figure 4 shown, carbon fiber tube skeleton 11 of upturn door plate 1 is fixed with carbon fiber inner skin 12 and glass fiber outer skin 13 respectively, carbon fiber tube skeleton 11 is filled with PMI (Methacrylimide) foam material 111, and carbon fiber tube skeleton 11 is filled with PMI foam material 112 added with auxiliary agent, which is used to absorb electromagnetic wave. Upturn door plate special-shaped aluminum alloy frame 14 with 2 sealing strip grooves 141 is fixed on the outer periphery of carbon fiber inner skin 12 through riveting and bonding mode, and upturn door plate special-shaped aluminum alloy frame 14 is adjacent to carbon fiber tube skeleton 11 through carbon fiber inner skin 12. Carbon fiber inner skin 12 is clamped with 200 mesh copper net 121 and nickel net 122, which significantly improves the electromagnetic wave shielding performance of vehicle-mounted cabin.

[0021] The cross section of carbon fiber tube skeleton 11 is "mouth" shape, and the density of carbon fiber tube skeleton 11 is 75kg / m 3The PMI foam material is processed, and the outer circumferential surface of the carbon fiber tube skeleton 11 is wrapped with a unidirectional carbon fiber prepreg with a strength of T300 level. The special-shaped aluminum alloy frame 14 of the upturned door plate and the special-shaped aluminum alloy door frame 4 of the vehicle-mounted cabin are both made of 6005-T5 high-strength aluminum alloy profiles, and the upturned door plate made of composite material is light in weight and high in strength.

[0022] As shown in Figure 5 The special-shaped aluminum alloy door frame 4 of the vehicle-mounted cabin is clamped with a buckle sealing strip 5 at a stop opening, the outer ring groove 141 of the special-shaped aluminum alloy frame 14 of the upturned door plate is installed with a D-shaped sealing strip 6, and the inner ring groove 142 is installed with a shielding strip 7. When the upturned door plate 1 is closed, the buckle sealing strip 5, the D-shaped sealing strip 6 and the shielding strip 7 are all squeezed to reliably seal the vehicle-mounted cabin, and the sealing performance of the vehicle-mounted cabin is significantly improved.

[0023] In addition to the above-mentioned embodiments, the utility model can also have other implementation manners, and any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A kind of vehicle-mounted cabin body upturn door, including upturn door plate, several four-bar linkage hinges and 2 pneumatic struts, the fixed seat of four-bar linkage hinge is respectively fixed in the top wall of cabin body two end corner and the middle part of top wall, the inner side of the upper corner and the middle part of upturn door plate is respectively fixed in the movable seat of four-bar linkage hinge, the end head of each connecting rod of four-bar linkage hinge is respectively hinged with the one end of corresponding fixed seat and movable seat, the other end of corresponding fixed seat and the lower pneumatic strut seat of the inner side of the lower part of cabin body side wall is respectively hinged with the two ends of pneumatic strut;Its characterized in that, The carbon fiber inner skin and the glass fiber outer skin are respectively fixed on the inner and outer sides of the carbon fiber pipe skeleton of the upturned door panel, the carbon fiber pipe skeleton is filled with PMI foam, the carbon fiber pipe skeleton is filled with PMI foam added with a wave-absorbing additive, an upturned door panel special-shaped aluminum alloy frame with several sealing strip grooves is fixed on the outer periphery of the carbon fiber inner skin, and the upturned door panel special-shaped aluminum alloy frame is adjacent to the carbon fiber pipe skeleton through the carbon fiber inner skin; The vehicle-mounted cabin special-shaped aluminum alloy door frame and the upturned door panel special-shaped aluminum alloy frame are respectively provided with several sealing strips, and the vehicle-mounted cabin special-shaped aluminum alloy door frame and the upturned door panel special-shaped aluminum alloy frame are sealed to each other through the several compressed sealing strips when the upturned door panel is closed.

2. The roll-up door for a vehicle compartment according to claim 1, wherein The carbon fiber inner skin is clamped with 180-200 mesh copper mesh and nickel mesh.

3. The roll-up door for a vehicle compartment according to claim 1, wherein The vehicle-mounted cabin special-shaped aluminum alloy door frame is provided with a buckle sealing strip at a stopper, the outer groove of the upturned door panel special-shaped aluminum alloy frame is provided with a D-shaped sealing strip, and the inner groove is provided with a shielding strip; the buckle sealing strip, the D-shaped sealing strip and the shielding strip are compressed when the upturned door is closed, so that the vehicle-mounted cabin and the upturned door are sealed to each other.

4. The roll-up door for a vehicle compartment according to claim 1, wherein The cross-section of the carbon fiber tube skeleton of the upward-opening door panel is "U"-shaped, and it uses a density of 75kg / m³. 3 It is made of PMI foam, and the outer surface of the carbon fiber tube skeleton is wrapped with a layer of unidirectional carbon fiber prepreg with a strength of T300.

5. The roll-up door for a vehicle compartment according to claim 1, wherein The upturned door special-shaped aluminum alloy frame and the vehicle-mounted cabin special-shaped aluminum alloy door frame are both made of 6005-T5 high-strength aluminum alloy profiles.