Multi-spectrum disguise door

Abstract

The utility model relates to a multi-spectrum disguise door which comprises a door body, a supporting framework and a pushing device, the upper end of the door body is hinged to the upper end of the supporting framework, the lower end of the supporting framework is fixedly connected with a foundation, one end of the pushing device is connected with the door body in a sliding mode, and the door body comprises a door frame and a disguise layer embedded in the door frame. The camouflage layer sequentially comprises a radar wave-absorbing layer, an infrared regulation and control layer and an imitated optical camouflage layer from inside to outside; the radar wave absorbing layer can play a role in heat insulation and radar wave absorption, and the infrared regulation and control layer can simulate the temperature change of the surrounding external background environment, so that the temperature difference of the surface of the multi-spectrum camouflage door in different seasons and different time periods is always fused with the surrounding background, and infrared camouflage is achieved; the imitated optical camouflage layer is located on the outer surface of the door body, and the purpose of optical camouflage is achieved. When the device is mounted at a camouflage hole, various compatible camouflage effects of radar, infrared light and visible light can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering camouflage technical field especially, and relates to a multi-spectral camouflage door. BACKGROUND

[0002] The hole depot dug in the mountain has good protection and hiding effect, and is one of main parts for storing various hidden articles, but the visible light characteristics, infrared characteristics and radar characteristics at the entrance of the hole depot have obvious difference with the surrounding background, therefore, the camouflage door is usually arranged at the entrance of the hole depot to ensure the camouflage concealment of the hole depot, prevent reconnaissance and monitoring and ensure the engineering safety.

[0003] The patent CN110735584B discloses a camouflage door in the field of civil air defense doors, which comprises a door leaf provided with a frame, an inner panel covering the inner side of the frame, the upper end of the door leaf being hinged to the upper end of the entrance outside the passage, the lower end of the door leaf being arranged in close contact with the lower end of the entrance of the passage, a propelling mechanism being connected to the inner side wall of the door leaf and arranged in the passage, and a camouflage structure being arranged on the frame; the frame comprises upper and lower transverse channel steels arranged in parallel, left and right longitudinal channel steels being perpendicularly connected to the two ends of the upper and lower transverse channel steels, respectively, and a plurality of transverse I steels being arranged at intervals between the upper and lower transverse channel steels, so that the camouflage door can be used at the entrance of the passage opened on the mountain, and the entrance of the passage and the surrounding environment remain consistent. However, the camouflage door is only coated with a camouflage color layer on the outer surface and is provided with vegetation, that is, the camouflage door is only consistent with the surrounding mountain in terms of color and shape of the outer surface, visible light camouflage is realized, but the exposure risk of radar and infrared cannot be solved. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a multi-spectral camouflage door, which can realize multi-compatible camouflage effects of radar, infrared and visible light.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a multi-spectral camouflage door, which comprises a door body, a supporting framework and a propelling device, the upper end of the door body is hinged to the upper end of the supporting framework, the lower end of the supporting framework is fixedly connected to a foundation, one end of the propelling device is slidably connected to the door body, the door body comprises a door frame and a camouflage layer embedded in the door frame, and the camouflage layer comprises, from inside to outside, a radar wave-absorbing layer, an infrared regulation and control layer and an optical simulation camouflage layer.

[0007] Preferably, support skeletons are arranged on both sides of the door body, each of the support skeletons comprises a fixed rod and a support rod, the fixed rod and the support rod are fixedly connected through at least one cross beam, the lower ends of the fixed rod and the support rod are fixedly connected with the foundation, and the upper ends of the two fixed rods are hingedly connected with the upper ends of the two vertical edges of the door frame.

[0008] Preferably, pushing devices are arranged on both sides of the door body, one end of each of the pushing devices is slidably connected with a corresponding vertical edge of the door frame, and the other end is hingedly connected with the support skeleton.

[0009] Preferably, grooves are arranged on the two vertical edges of the door frame, and slide rails are arranged in the grooves, and the pushing devices are slidably connected with the corresponding slide rails through sliding blocks.

[0010] Preferably, a baffle is arranged on the sliding block, a limit switch corresponding to the baffle is arranged on the slide rail, and the limit switch is electrically connected with the pushing device.

[0011] Preferably, the pushing device is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is connected with the support skeleton, and the piston rod is slidably connected with the door body.

[0012] Preferably, the radar wave absorbing layer comprises a polystyrene plate, and a radar wave absorbing coating is coated on the outer surface of the polystyrene plate.

[0013] Preferably, the infrared regulation layer comprises a foam plate, and phase change temperature regulating capsules are embedded in the foam plate.

[0014] Preferably, the thickness of the radar wave absorbing layer is 50-80 mm, the thickness of the infrared regulation layer is 15-25 mm, and the thickness of the optical camouflage layer is 10-30 mm.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] (1)The camouflage layer is sequentially arranged from inside to outside as a radar wave absorbing layer, an infrared regulation layer and an optical simulation camouflage layer; firstly, the radar wave absorbing layer comprises polystyrene plates, and the infrared regulation layer comprises foam plates, when the camouflage door is closed, the polystyrene plates and the foam plates can play a heat insulation role, so that the heat source in the to-be-camouflaged hole is isolated from the external environment, and the infrared exposure characteristics of the to-be-camouflaged hole are reduced; secondly, the radar wave absorbing layer is provided with a radar wave absorbing coating on the outer surface of the polystyrene plates, so that the radar reflectivity of the external background environment can be simulated, the reflection of the detection radar wave by the support framework is eliminated, the average radar reflectivity of the multispectral camouflage door is less than -8 dB at 1-2 GHz, the average radar reflectivity of the multispectral camouflage door is less than -25 dB at 2-18 GHz, and the difference between the backscattering coefficients of the multispectral camouflage door and the surrounding nine times background is less than or equal to 3 dB, so that the multispectral camouflage door realizes high-fidelity radar camouflage; thirdly, the infrared regulation layer is formed by the foam plates in which phase change temperature regulating capsules are embedded, so that the temperature change of the surrounding external background environment can be simulated, the temperature difference of the surface of the multispectral camouflage door in different seasons and different time periods is always integrated into the surrounding background, and the absolute value of the average radiation temperature difference between the multispectral camouflage door and the surrounding nine times background is less than 2K, so that infrared camouflage is achieved; finally, the optical simulation camouflage layer is located on the outer surface of the door body, the type of sandstone can be selected according to the on-site environment, the modeling, color, texture and texture of the external background environment can be simulated, the optical simulation camouflage of the outer surface layer of the multispectral camouflage door is realized, the average brightness contrast ratio of the multispectral camouflage door and the surrounding nine times background is less than 0.15, the color difference is less than 2L*a*b*, and the purpose of optical simulation is achieved;

[0017] (2)The utility model discloses through pusher drive slider moves, and then drive door body opens or closes, through the slider movement can control the opening or closing angle of door body, so that the vehicle or personnel of entering the to-be-camouflaged hole is not hindered by door body, and because door body, pusher are all connected with support framework, can guarantee the stability of camouflage door in the process of opening and closing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the multispectral camouflage door of the utility model closes;

[0019] Figure 2 It is the structure schematic diagram of the camouflage layer of the utility model;

[0020] Figure 3 It is the structure schematic diagram of the radar wave absorbing layer of the utility model;

[0021] Figure 4 It is the structure schematic diagram of polystyrene plate of the utility model;

[0022] Figure 5 It is the structure schematic diagram of the multispectral camouflage door of the utility model open state;

[0023] REFERENCE SIGNS:

[0024] 1, support framework, 11, fixed rod, 12, support rod, 13, crossbeam, 2, door body, 21, door frame, 22, camouflage layer, 221, radar wave absorbing layer, 2211, polystyrene plate, 2212, radar wave absorbing coating, 222, infrared regulation layer, 223, optical camouflage layer, 3, hydraulic cylinder, 31, cylinder body, 32, piston rod, 4, camouflage opening. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] EMBODIMENT

[0027] REFERENCE Figure 1 The present embodiment provides a multispectral camouflage door, which is installed at a camouflage opening 4. The multispectral camouflage door comprises a door body 2, a support framework 1 and a pushing device. The upper end of the door body 2 is hingedly connected to the upper end of the support framework 1, and the lower end of the support framework 1 is fixedly connected to a foundation. One end of the pushing device is slidingly connected to the door body 2, and the other end is hingedly connected to a fixed object. The door body 2 can be opened or closed under the guidance of the pushing device without blocking the camouflage opening 4. The door body 2 comprises a door frame 21, and the door frame 21 is embedded with a camouflage layer 22. The camouflage layer 22 comprises, from inside to outside, a radar wave absorbing layer 221, an infrared regulation layer 222 and an optical camouflage layer 223.

[0028] In the present embodiment, the opening and closing of the door are controlled by the extension and retraction of the pushing device and the relative sliding between the pushing device and the door body 2. When the door body 2 is closed, the camouflage layer 22 can block the camouflage opening, and the multispectral camouflage door can have radar, infrared and visible light anti-counterfeiting functions. The support framework 1 is used to support the weight of the door body 2 and is connected to a component connected to the camouflage door. The size and material of the support framework 1 can be pre-set according to the use requirements. For example, the material of the support framework 1 can be alloy structural steel or stainless steel, and the present embodiment does not make a specific limitation in this regard.

[0029] Specifically, the door body 2 is provided with a support framework 1 on both sides, the support framework 1 comprises a fixed rod 11 and a support rod 12, the fixed rod 11 and the support rod 12 are fixedly connected through two cross beams 13, the two cross beams 13 are arranged in an upper and lower interval, the lower end of the fixed rod 11 and the lower end of the support rod 12 are fixedly connected with the foundation, and can also be fixedly connected with the base, in order to improve the stability, the distance between the fixed rod 11 and the support rod 12 gradually increases from top to bottom, the entire support framework 1 is in a trapezoidal shape, the upper end of the door frame 21 is hingedly connected with the upper end of the two fixed rods 11 on both sides; the two vertical edges of the door frame 21 are provided with grooves along the length direction, the grooves are provided with sliding rails, one end of the pushing device is slidingly connected with the corresponding sliding rail through a sliding block, the other end is hingedly connected with the lower end of the corresponding fixed rod 11, and the hinged end of the pushing device can also be hinged on the foundation; when the pushing device is stretched, the sliding block slides along the sliding rail, and the door body 2 is opened at the same time; when the pushing device is shortened, the sliding block slides along the sliding rail, and the door body 2 is closed at the same time.

[0030] The pushing device can be equipped with a manual opening function, which can convert the pushing device into a manual opening when the power is cut off, so as to ensure that the pushing device can still operate normally after power failure, and further ensure the normal opening and closing of the camouflage door.

[0031] The sliding rail is a component for limiting the sliding block, the size and material of the sliding rail can be pre-set according to the use requirement, as long as the sliding block is always located on the sliding rail, and the embodiment of the present application does not make specific limitation thereto, the sliding block is a component for connecting the pushing device, the size and material of the sliding block can be pre-set according to the use requirement, for example, the material of the sliding block can be alloy, stainless steel or the like.

[0032] Further, the sliding block further comprises a striker, and the sliding rail is also provided with a limit switch; the striker can contact the limit switch during movement, the size and material of the striker can be pre-set according to the use requirement, as long as the striker can contact the limit switch, and the embodiment of the present application does not make specific limitation thereto.

[0033] The limit switch is a component for limiting the movement of the pushing device, the type of the limit switch can be pre-set according to the use requirement, for example, the limit switch can be a travel switch, and the embodiment of the present application does not make specific limitation thereto, and the mounting mode of the limit switch on the sliding rail can be various. For example, the limit switch can be welded on the sliding rail, or the limit switch can be connected with the sliding rail through a bolt, and the present application does not make specific limitation thereto.

[0034] In order to better limit the movement of the pushing device, the number of limit switches can be two, the two limit switches are arranged on the sliding rail in an interval, and the striker can contact the two limit switches during movement.

[0035] When the multispectral camouflage door needs to be opened, the pushing device drives the sliding block to move in the sliding rail to the side close to the bottom of the to-be-camouflaged opening 4 in the door body 2, if the striker on the sliding block contacts another limit switch (at this time, the pushing device 3 moves to the limit position), the contact in the limit switch will be closed, the limit switch will send a second alarm signal to the PLC, and the PLC will control the pushing device to stop moving when the second alarm signal is received, at this time, the sliding block will not continue to move upwards, and the multispectral camouflage door is closed to the position, which ensures the stability of the multispectral camouflage door when it is closed.

[0036] When the multispectral camouflage door needs to be opened, the pushing device drives the sliding block to move in the sliding rail to the side close to the bottom of the to-be-camouflaged opening 4 in the door body 2, if the striker on the sliding block contacts another limit switch (at this time, the pushing device 3 moves to the limit position), the contact in the limit switch will be closed, the limit switch will send a second alarm signal to the PLC, and the PLC will control the pushing device to stop moving when the second alarm signal is received, at this time, the sliding block will not continue to move upwards, and the multispectral camouflage door is closed to the position, which ensures the stability of the multispectral camouflage door when it is closed.

[0037] In the above embodiment, the pushing device is preferably a hydraulic cylinder 3, the cylinder body 31 of the hydraulic cylinder 3 is hinged to the support framework 1, and the piston rod 32 is slidingly connected to the door body 2.

[0038] The radar wave absorbing layer 221 comprises a polystyrene plate 2211, and the outer surface of the polystyrene plate 2211 is coated with a radar wave absorbing coating 2212. The preparation process of the radar wave absorbing layer 221 is as follows: i) a certain amount of resin, chromium-hafnium-silicon alloy powder, carbon black, anhydrous ethanol and a curing agent are weighed with an electronic balance with an accuracy of 0.01 g and placed in a clean container; a dispersion mixer is used to stir the raw materials in the container, after stirring for 1 h, a certain amount of polystyrene particles is added, and the dispersion is continued for 1 h to obtain a slurry; ii) see Figure 4 One side of the polystyrene plate 2211 is processed into a square with a side length of 10 cm and a wedge with a height of 5 cm to obtain a polystyrene insulation board; iii) after cleaning the inner surface of the mold to be clean and free of impurities, the mold is waxed; the polystyrene insulation board is placed in the mold, then the slurry is poured into the mold until the polystyrene insulation board is completely immersed in the slurry; iv) after covering the mold with a corrosion-resistant wood board, the mold is placed in an oven, and the slurry is cured at 60-80℃ for 10-15 h to obtain a coating on the surface of the polystyrene insulation board, and the radar wave absorbing layer 221 is obtained after demolding.

[0039] The infrared regulation layer 222 comprises a foam plate, and phase change temperature regulating capsules are embedded in the foam plate, wherein the phase change temperature regulating capsules are plastic sealed strip-shaped bags containing water or phase change heat storage materials; the phase change heat storage materials are selected from inorganic phase change heat storage materials or organic phase change heat storage materials with a phase change temperature lower than 80 DEG C.

[0040] The pseudo-optical camouflage layer 223 comprises the following components by weight: 50-85 parts of epoxy resin, 32-63 parts of polyamide resin curing agent and 90-129 parts of sandstone.

[0041] Specifically, the preparation process of the pseudo-optical camouflage layer 223 is as follows: i) a certain amount of epoxy resin, polyamide resin curing agent and sandstone are weighed by an electronic balance with an accuracy of 0.01 g and placed in a clean container; a dispersion mixer is used to stir the raw materials in the container, and after stirring for 1 h, a slurry is obtained; ii) the slurry is coated on the outer surface of the infrared regulation layer 222, and after being kept at 20-50 DEG C for 20-24 h, the pseudo-optical camouflage layer 223 is obtained after curing.

[0042] The thickness of the radar wave absorbing layer 221, the thickness of the infrared regulation layer 222 and the thickness of the pseudo-optical camouflage layer 223 can be determined according to design requirements, wherein the thickness of the radar wave absorbing layer 221 is preferably 50-80 mm, the thickness of the infrared regulation layer 222 is preferably 15-25 mm, and the thickness of the pseudo-optical camouflage layer 223 is preferably 10-30 mm.

[0043] The specific embodiments of the present application enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application.

[0044] It should be understood that the present application is not limited to the above-described content, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A multi-spectral camouflage door, characterized by, The utility model provides a door body (2), support framework (1) and push device, the door body (2) upper end is hinged with support framework (1) upper end, support framework (1) lower end is fixedly connected with ground base, one end of push device is slidably connected with door body (2), the door body (2) includes door frame (21) and the camouflage layer (22) embedded in door frame (21), the camouflage layer (22) is from inside to outside in turn radar wave absorbing layer (221), infrared control layer (222) and imitative optical camouflage layer (223).

2. The multi-spectral camouflage door of claim 1, wherein, Both sides of the door body (2) are provided with support framework (1) correspondingly, each support framework (1) includes fixed rod (11) and support rod (12), the fixed rod (11) is fixedly connected with the support rod (12) through at least one cross beam (13), the lower end of the fixed rod (11) and the lower end of the support rod (12) are fixedly connected with the ground base, and the upper end of the door frame (21) is hingedly connected with the upper end of the two fixed rods (11) on both sides respectively.

3. The multi-spectral camouflage door of claim 1, wherein, Both sides of the door body (2) are provided with push device correspondingly, one end of each push device is slidably connected with the corresponding vertical edge of the door frame (21), and the other end is hingedly connected with the support framework (1).

4. The multi-spectral camouflage door of claim 3, wherein, Two vertical edges of the door frame (21) are provided with grooves correspondingly, and slide rails are arranged in the grooves, and the push device is slidably connected with the corresponding slide rail through a sliding block.

5. A multi-spectral camouflage door according to claim 4, wherein, A baffle is arranged on the sliding block, a limit switch corresponding to the baffle is arranged on the slide rail, and the limit switch is electrically connected with the push device.

6. The multi-spectral camouflage door of claim 1, wherein, The push device is a hydraulic cylinder (3), the cylinder body (31) of the hydraulic cylinder (3) is connected with the support framework (1), and the piston rod (32) is slidably connected with the door body (2).

7. The multi-spectral camouflage door of claim 1, wherein, The radar wave absorbing layer (221) includes a polystyrene plate (2211), and the outer surface of the polystyrene plate (2211) is coated with a radar wave absorbing coating (2212).

8. The multi-spectral camouflage door of claim 1, wherein, The infrared control layer (222) includes a foam plate, and phase change temperature regulating capsules are embedded in the foam plate.

9. The multi-spectral camouflage door of claim 1, wherein, The thickness of the radar wave absorbing layer (221) is 50-80 mm, the thickness of the infrared control layer (222) is 15-25 mm, and the thickness of the imitative optical camouflage layer (223) is 10-30 mm.

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