Electric shutter with invisible shielding airtight function

Abstract

The utility model provides an electric shutter with a stealth shielding airtight function, which comprises an airtight plate, a stealth plate, a waveguide plate and a manual-electric integrated push rod, and is characterized in that the airtight plate is positioned and welded with the inside of a shutter outer frame profile to form a shutter outer frame; the invisible plate is connected with the blades in a covering mode to form invisible plate blades, and the invisible plate blades are movably connected to the shutter outer frame to achieve the invisible function. After the blades of the invisible plate are closed, the blades are attached to the airtight plate in a sealed mode, and the airtight effect is achieved; meanwhile, the shutter is further provided with a rear cover, the waveguide plate is embedded in the rear cover and fixed, and different shielding wavebands and shielding effectiveness are customized according to different requirements; the manual-electric integrated push rod is installed on the shutter outer frame section bar through the fixing plate, the bottom end of the manual-electric integrated push rod is connected with the connecting rods of the invisible plate blades through the screws, opening or closing of the shutter can be controlled through a circuit, and the shutter can be manually opened or closed through the hand-cranking opening in the power-off state.

Description

Technical Field

[0001] The utility model relates to the technical field of blinds, in particular to an electric blind with stealth, shielding and airtight functions. Background Art

[0002] Stealth shielding airtight electric blinds are mainly used for ventilation, exhaust, shielding and stealth in military shelters and military vehicles. Ventilation is a necessary function for conventional electric blinds today. The goal of this product is to make electric blinds operate well and be durable in various environments. At present, most electric blinds focus on reducing weight and ventilation area. If they are to be used on some military equipment, more sophisticated functions are needed for better protection, such as signal shielding and appearance stealth. At present, the equipment used by military enterprises to achieve these functions is still monotonous and impractical, resulting in the following problems with existing products with these functions:

[0003] Nowadays, both military and civilian electric blinds have problems such as complex structure, poor portability, and difficult operation, and do not cover stealth function. If the stealth function is required, expensive stealth panels must be purchased and installed on the cabin or vehicle surface, and the cost of consumables is high. A set of electric blinds uses multiple electronic components, such as motor push rods, relays, wiring slots, travel switches, fans, etc. The entire ventilation and exhaust system composed of multiple units requires the installation of shielding waveguide plates if electromagnetic shielding is required. How to properly combine the functions of the electric blinds themselves with the airtight function, stealth function, and shielding function is a problem we need to consider. Utility Model Content

[0004] The purpose of the utility model is to propose a device that can combine the functions of the electric blinds themselves with the airtight function, the stealth function and the shielding function. In order to achieve the above-mentioned purpose, the utility model proposes an electric blind with stealth, shielding and airtight functions, including an airtight plate, a stealth plate, a waveguide plate and a flashlight integrated push rod: the airtight plate is positioned and welded with the inside of the blinds outer frame profile to form the blinds outer frame; the stealth plate is covered and connected with the blades to form stealth plate blades, and the stealth plate blades are movably connected to the blinds outer frame, so that the stealth plate blades are sealed with the airtight plate after closing, so that the outside wind cannot enter the inside of the blinds, thereby achieving an airtight effect; the blinds are also provided with a rear cover, and the waveguide plate is embedded in the rear cover and fixed; the flashlight integrated push rod is installed on the blinds outer frame profile through a fixing plate, and the bottom end is connected to the connecting rod of the stealth plate blades through screws.

[0005] Furthermore, the airtight plate is welded by stainless steel plates covered with airtight rubber rings. The specific method is: these stainless steel plates are welded according to the requirements of the drawings to weld out the overall shape of the airtight plate, and then the airtight rubber rings are cut and glued to the stainless steel plates with glue, and then the airtight plate and the inside of the shutter frame profile are positioned and welded firmly.

[0006] Furthermore, the blades are welded from stainless steel plates and accessories, and the stealth plate and the stainless steel plate are firmly fixed with glue to form stealth plate blades. After the shutters are opened, the stealth plate blades can reach the specified angle to meet the original opening and closing ventilation requirements of the blades. The specific method is: the stealth plate is modified to a suitable thickness through processing, and the stainless steel plate is cut by laser, and then the accessories required for the shaft are processed by a milling machine, and the accessories are welded to the above-mentioned stainless steel plate. The stealth plate and the stainless steel plate are firmly fixed with glue. After the glue is air-dried, the overall size is corrected with a knife until it meets the requirements of the drawing. The stealth plate uses a stealth material plate that is widely used on the market. It can resist the five bands of Ka, Ku, X, C, and S. The reflectivity of the radar camouflage material test (90° vertical incidence) can meet the following requirements:

[0007] 1) The average reflectivity of the Ka band is not less than 10dB, and the maximum value is not less than 8dB;

[0008] 2) The reflectivity of Ku band is not less than 14dB, and the maximum value is not less than 14dB;

[0009] 3) The reflectivity of the X-band is not less than 14dB, and the maximum value is not less than 14dB;

[0010] 4) The reflectivity of the C band is not less than 10dB;

[0011] 5) The reflectivity of the S band is not less than 4dB;

[0012] Furthermore, holes are provided on the outer frame of the shutter to facilitate the installation of the stealth panel blades through the shaft.

[0013] Furthermore, the rear cover is a stainless steel bent part with an embedding groove and a mounting hole, the waveguide plate is embedded in the rear cover through the embedding groove, and is further fixed by using countersunk screws and self-locking nuts in the mounting hole. At the same time, the bent stainless steel plate has an independent mounting hole, through which the rear cover can be mounted and fixed on the door panel.

[0014] Furthermore, a power interface is installed on the rear cover to facilitate circuit connection. At the same time, in order to prevent interference with the push rod integrated with the flashlight, the overall size of the rear cover is enlarged to be larger than the size of the blinds.

[0015] Furthermore, the waveguide plate is a honeycomb mesh plate, which can effectively enhance the electromagnetic shielding function of the blinds, so that it can shield signals in the 10kHz to 18GHz band with a shielding effectiveness of not less than 40dB, and the overall shielding properties and structural state can also be flexibly adjusted.

[0016] Furthermore, a sealing rainproof device is provided at the hand crank opening of the flashlight-integrated push rod.

[0017] Furthermore, the fixing plate of the integrated flashlight push rod is a bent stainless steel plate, through which the integrated flashlight push rod and electronic components such as wiring slots and relays are fixed on the bakelite board in sequence, and the bakelite board is installed on the outer frame profile of the blinds. When there is power, the blinds can be opened and closed by controlling the external switch, and when there is no power, the blinds can also be manually opened and closed by rotating the hand crank with a hand crank.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The utility model produces and trims the stealth panel that originally could only cover the outer layer into the required shape, and then replaces the position of the blades. After the shutters are opened, they can reach the specified angle to meet the original opening and closing ventilation requirements of the blades. At the same time, the stealth panel can resist the five bands of Ka, Ku, X, C, and S, and effectively realize the stealth function.

[0020] 2. Compared with the prior art, the waveguide plate in the utility model adopts a customized honeycomb mesh plate. Installed on the rear cover of the blinds, and then the rear cover is covered on the blinds, the electromagnetic shielding function of the blinds can be effectively improved, and the overall shielding and structural state can also be flexibly adjusted.

[0021] 3. In the utility model, the airtight plate formed by combining multiple processes is welded inside the outer frame profile of the shutter, so that it can fit tightly with the shutter blades after closing, so that the outside wind cannot enter the inside of the shutter, thereby achieving an airtight effect.

[0022] 4. The utility model provides an advanced integrated flashlight push rod, so that the shutters can be opened and closed by an external switch when there is power, and the shutters can be manually opened and closed by rotating the hand crank mouth with a hand crank when there is no power, and the hand crank mouth has a sealing and rainproof treatment measure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall planar structure of the electric blinds with stealth, shielding and airtight functions of this embodiment.

[0024] Figure 2 It is a side plan view of the electric blinds with stealth, shielding and airtight functions of this embodiment.

[0025] Figure 3 This is a top plan structural diagram of the electric blinds with stealth, shielding and airtight functions of this embodiment. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be further described below.

[0027] This embodiment provides an electric blind with stealth shielding and airtight function, such as Figure 1 As shown, it includes an airtight plate, a stealth plate 4, a waveguide plate 3 and a flashlight integrated push rod 5, wherein, as Figure 2 As shown, the airtight plate is welded by stainless steel plates covered with airtight rubber rings 6, and is positioned and welded with the inside of the shutter frame profile to form the shutter frame. In this embodiment, specifically, a 2mm stainless steel plate and 1.5mm and 3mm stainless steel plates of specified sizes are cut by laser, and then these plates are welded according to the requirements of the drawings to weld the overall shape of the airtight plate. The airtight rubber ring 6 is then cut and glued to the stainless steel plate, and then the airtight plate is firmly positioned and welded with the inside of the shutter frame profile.

[0028] After the above-mentioned stealth plate 4 is firmly bonded to the stainless steel plate by glue, a stealth plate 4 blade is formed. The stealth plate 4 blade is fixed on the shutter through the perforation on the outer frame of the shutter, so that the stealth plate 4 blade can not only meet the original opening and closing ventilation effect of the blade, but also, after it is closed, it can be sealed with the airtight plate through the airtight rubber ring 6 to achieve an airtight effect. In this embodiment, the airtight effect can ultimately achieve that when the door and openings of the box are all closed and the internal and external pressure difference is 100Pa, the air leakage volume is not more than 20m 3 / (hm 3 ).

[0029] The stealth panel 4 in this embodiment can resist five bands, namely Ka, Ku, X, C and S. The reflectivity of the radar camouflage material test (90° vertical incidence) can meet the following requirements: 1) the average reflectivity of the Ka band is not less than 10dB, and the maximum value is not less than 8dB; 2) the reflectivity of the Ku band is not less than 14dB, and the maximum value is not less than 14dB; 3) the reflectivity of the X band is not less than 14dB, and the maximum value is not less than 14dB; 4) the reflectivity of the C band is not less than 10dB; 5) the reflectivity of the S band is not less than 4dB.

[0030] The shutter of this embodiment is also equipped with a rear cover made of a 1.5mm thick stainless steel bent piece, which forms a protruding platform with the shutter outer frame. An embedding groove is provided at the center of the rear cover, and mounting holes are provided on the periphery. The waveguide plate 3 is inserted into the embedding groove of the rear cover, and is further fixed with countersunk screws and self-locking nuts through the mounting holes around the rear cover. Figure 1 As shown, in this embodiment, the waveguide plate 3 is a customized honeycomb mesh plate, which effectively improves the electromagnetic shielding function of the blinds, so that it can shield signals in the 10kHz~18GHz band, with a shielding effectiveness of not less than 40dB, and the overall shielding and structural state can also be flexibly adjusted; in addition, the stainless steel bent plate constituting the rear cover itself is also provided with an independent mounting hole, through which the rear cover is fixed on the door panel. The rear cover is also equipped with a power interface 7, such as Figure 3 As shown, it is convenient to connect the power supply and realize the electric function. At the same time, in order to prevent interference with the push rod integrated with the flashlight, the overall size of the rear cover is appropriately enlarged to make it larger than the size of the blinds. Figure 1 As shown, in this embodiment, a flashlight integrated push rod 5 is also installed on the outer frame profile of the electric blinds through a fixing plate, and the push rod 5 is provided with an extended hand crank port 1, and the bottom end is connected to the connecting rod of the blades of the invisible plate 4 by screws. When there is power, the blinds can be opened and closed by controlling the external switch. When there is no power, the blinds can also be manually opened and closed by rotating the hand crank port 1 using a hand crank, and a sealing rainproof device 2 is provided at the hand crank port 1 of the flashlight integrated push rod 5, as shown in FIG. Figure 3 As shown, the hand crank bracket 8 used to connect the hand crank 1 and the sealing rainproof device 2 can be fixed on the door panel or the cabin panel, which can effectively fix the position of the hand crank 1 to prevent detachment or displacement.

[0031] The hand-cranked, flashlight-integrated push rod 5 of the present embodiment is a stainless steel plate bent from 2mm sheet metal as the above-mentioned fixing plate, the above-mentioned fixing plate is fixed on the bakelite board, and the bakelite board is then installed on the outer frame profile of the blinds, so that the flashlight-integrated push rod 5 is fixed on the blinds of the present embodiment, wherein the wiring slots, relays and other accessories used for the overall wiring connection of the push rod 5 are also installed on the bakelite board in sequence.

[0032] The above are only preferred embodiments of the present invention and do not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, may make any equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which shall be deemed as the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. An electric blind with stealth shielding and airtight function, characterized in that: Including airtight plate, stealth plate, waveguide plate and flashlight integrated push rod: The airtight plate is positioned and welded to the inside of the shutter outer frame profile to form the shutter outer frame; The stealth plate is connected to the blades to form stealth plate blades, and the stealth plate blades are movably connected to the outer frame of the shutter, so that the stealth plate blades are tightly fitted with the airtight plate after closing; The shutter is also provided with a rear cover, which forms a protruding platform with the shutter, and the waveguide plate is embedded in the rear cover and fixed; The flashlight integrated push rod is installed on the shutter outer frame profile through a fixing plate, and the bottom end is connected to the connecting rod of the invisible plate blade through screws.

2. The electric blind with stealth shielding and airtight function according to claim 1, characterized in that: The airtight plate is formed by welding stainless steel plates covered with airtight rubber rings.

3. The electric blind with stealth shielding and airtight function according to claim 1, characterized in that: The blades are formed by welding stainless steel plates and accessories, and the stealth plate and the stainless steel plate are firmly fixed by glue to form stealth plate blades.

4. The electric blind with stealth shielding and airtight function according to claim 1, characterized in that: The outer frame of the shutter is provided with holes to facilitate the installation of the stealth plate blades through the shaft.

5. The electric blind with stealth shielding and airtight function according to claim 1, characterized in that: The rear cover is a stainless steel bent part with an embedding groove and a mounting hole. The waveguide plate is embedded in the rear cover through the embedding groove and is further fixed by using countersunk screws and self-locking nuts in the mounting hole.

6. The electric blind with stealth shielding and airtight function according to claim 5, characterized in that: The rear cover is also provided with a power interface for easy connection of the circuit.

7. The electric blind with stealth shielding and airtight function according to claim 6, characterized in that: The waveguide plate is a honeycomb mesh plate.

8. The electric blind with stealth shielding and airtight function according to claim 1, characterized in that: A sealing rainproof device is provided at the hand crank opening of the flashlight integrated push rod.

9. The electric blind with stealth shielding and airtight function according to claim 1, characterized in that: The fixing plate of the flashlight integrated push rod is a bent stainless steel plate, the fixing plate is fixed on an electric bakelite board, and the electric bakelite board is installed on the outer frame profile of the shutter.

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