Film for preventing laser electromagnetic leakage

Abstract

The utility model provides a film for preventing laser electromagnetic leakage. The film comprises a film body formed by a substrate layer, a nanometer semiconductor layer, a nanometer infrared absorption layer and a protection layer which are sequentially laminated from bottom to top, one end of the film body is connected with a reel used for winding and storing the film body, a mounting plate is fixedly mounted on the inner side wall of the reel, a mounting column is rotationally mounted on one side of the mounting plate, the end of the mounting column extends to the outer side of the reel, and a connecting rod movably penetrates through the mounting column. According to the utility model, the protective layer is adhered to the nano infrared absorption layer, so that the surface of the nano infrared absorption layer is protected, and the situation that dust particles are attached to the nano infrared absorption layer and the attachment of the film body is influenced is effectively avoided; by arranging the mounting column, the connecting rod, the pressing plate and the driving piece, in the using process, the pressing plate can press and position the end of a film body, the winding state of the film body by the winding shaft is effectively guaranteed, and therefore the film body is convenient to transport and store.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti-laser electromagnetic equipment, specifically relates to a film of anti-laser electromagnetic leakage. BACKGROUND

[0002] The film of anti-laser electromagnetic leakage is formed by adopting the forefront nanometer grinding technology, fusing a variety of special metal oxide materials and being coated and compounded in multiple layers.Optically precise, it can absorb and reflect specific wave bands while maintaining high transparency and clarity, achieving a laser blocking effect of up to 99.99%.It also has electromagnetic and electronic signal shielding functions.By using different nanometer functional groups to absorb different wave bands of infrared, it achieves full coverage in the range of 900-2500nm.Meanwhile, by taking advantage of the large surface area, strong absorption performance and good visible light transmission performance of nanomaterials, it achieves full coverage of the intrusion infrared laser range, blocks eavesdropping lasers and allows high visible light transmission.

[0003] When the film of anti-laser electromagnetic leakage is used, it is usually attached in a way that the following defects exist when the current film is attached:

[0004] 1.The overall weight of the film is large, and it needs to be cut when attached, so the film is difficult to carry and inconvenient to use.

[0005] 2.The film lacks a protective structure on the outside, which makes the adhesive surface of the film prone to dust accumulation, affecting the attachment effect.

[0006] Therefore, the present application provides a film of anti-laser electromagnetic leakage. SUMMARY

[0007] In view of the deficiencies of the prior art, the utility model provides a film of anti-laser electromagnetic leakage, which solves the problems mentioned in the background art.

[0008] To achieve the above purpose, the utility model realizes the following technical scheme:

[0009] A film of anti-laser electromagnetic leakage, comprising a film body formed by a substrate layer, a nanometer semiconductor layer, a nanometer infrared absorption layer and a protective layer arranged in a stack from bottom to top.

[0010] One end of the film body is connected to a spool for winding and storing it, and the inner wall of the spool is fixedly installed with a mounting plate, one side of the mounting plate is rotatably installed with a mounting column, the end of the mounting column extends to the outer side of the spool, and a connecting rod is movably penetrated through the mounting column, one end of the connecting rod is installed with a pressing plate that can contact the outer side wall of the spool, and the mounting column is installed with a driving member connected to the connecting rod, which is used to make the connecting rod slide on the mounting column, so that the pressing plate is in contact with the outer side wall of the spool.

[0011] Another side of the mounting plate is provided with a covering component acting on the film body, which is used for covering the film body wound outside the reel.

[0012] Further, the driving member comprises a connecting plate and a spring one, the connecting rod is fixedly connected with the connecting plate at one end away from the pressing plate, and the connecting rod is externally sleeved with the spring one, and the two ends of the spring one are respectively in abutment with the mounting column and the connecting plate.

[0013] Further, the covering component comprises a protective sleeve fixedly installed on the side wall of the mounting plate, the protective sleeve can be sleeved outside the film body wound outside the reel, and one end of the protective sleeve away from the mounting plate can extend to the outside of the reel near one end of the connecting rod, and the one end of the protective sleeve away from the mounting plate is provided with a closing assembly for closing the opening of the one end of the protective sleeve away from the mounting plate.

[0014] Further, the closing assembly comprises an annular sleeve fixed at the end of the protective sleeve, the annular sleeve is provided with a notch in communication with the inside of the annular sleeve, the annular sleeve is inserted with a tightening rope, the two ends of the tightening rope extend to the outside of the notch, and the two ends of the tightening rope extending to the notch are connected with a positioning member, and the positioning member is used for positioning the two ends of the tightening rope extending to the notch.

[0015] Further, the positioning member comprises a positioning block, a positioning plate, a spring two and a pressing rod, the positioning block is provided with a through hole for the two ends of the tightening rope to pass through, the positioning block is provided with a containing cavity in communication with the inner bottom wall of the through hole, the pressing rod is movably penetrated through the top of the positioning block, the bottom of the pressing rod extends into the containing cavity and is fixedly installed with the positioning plate, the inner bottom wall of the containing cavity is symmetrically fixedly installed with the spring two fixedly connected with the positioning plate, and when the spring two is in a natural state, the top of the positioning plate is in abutment with the inner top wall of the through hole.

[0016] Further, the connecting rod comprises a round rod movably penetrating through the mounting column, one end of the round rod is threadedly penetrated with a threaded column, the pressing plate is fixedly connected with the end of the threaded column, the connecting plate is fixedly connected with the other end of the round rod, and the spring one is sleeved outside the round rod.

[0017] Further, the mounting column and the mounting plate are in damping rotary connection.

[0018] The utility model provides a kind of film for preventing laser electromagnetic leakage.Compared with prior art, it has the following beneficial effects:

[0019] 1. By setting the protective layer is attached to the nano infrared absorption layer, realize the protection effect to the surface of nano infrared absorption layer, effectively avoid the nano infrared absorption layer on the dust particle and affect the film body adhering condition;

[0020] 2. Through setting mounting column, connecting rod, pressing plate and driving piece, when using, through cooperation between mounting column, connecting rod, pressing plate and driving piece, the pressing plate can press and position the end of the film body, effectively ensure the winding state of the film body on the reel, thereby facilitating the transportation and storage of the film body;

[0021] 3. Through setting covering component, the film body wound outside the reel is covered, thereby further avoiding the situation that dust particles adhere to the film body, and effectively avoiding the situation that the surface of the film body on the outer layer of the reel is abraded when the film body is transported and stored. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The overall structure schematic diagram of the film body of the present application is shown;

[0024] Figure 2 The mounting structure schematic diagram of the pressing plate of the present application is shown;

[0025] Figure 3 The mounting structure schematic diagram of the closing assembly of the present application is shown;

[0026] Figure 4 The connection structure schematic diagram between the tightening rope and the positioning block of the present application is shown;

[0027] Figure 5 The overall structure schematic diagram of the film body of the present application is shown; Figure 4 The enlarged view of A in the present application is shown;

[0028] Figure 6 The structure schematic diagram of the positioning piece of the present application is shown;

[0029] As shown in the drawings: 1, film body; 11, base layer; 12, nano semiconductor layer; 13, nano infrared absorption layer; 14, protective layer; 2, reel; 21, mounting plate; 22, mounting column; 23, connecting rod; 231, round rod; 232, threaded column; 24, pressing plate; 25, driving piece; 251, connecting plate; 252, spring one; 3, covering component; 31, protective sleeve; 32, closing assembly; 321, annular sleeve; 322, notch; 323, tightening rope; 4, positioning piece; 41, positioning block; 411, perforation; 412, accommodating cavity; 42, positioning plate; 43, spring two; 44, pressing rod. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application is described clearly and completely. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0031] Embodiment one

[0032] To solve the technical problems in the background art, the following film for preventing laser electromagnetic leakage is given:

[0033] In combination with Figures 1-6 The film for preventing laser electromagnetic leakage provided by the present application comprises a film body 1 formed by a substrate layer 11, a nano semiconductor layer 12, a nano infrared absorption layer 13 and a protective layer 14 which are sequentially stacked from bottom to top, wherein the substrate layer 11 and the protective layer 14 are both made of ET plastic, and the thicknesses thereof are 10-100 μm; the nano semiconductor layer 12 is used for shielding electromagnetic radiation, and the material thereof is nano metal oxide ultrafine nanoparticles with a diameter of 1-50 nm, the nano metal oxide ultrafine nanoparticles are mixed by indium oxide and tin oxide with a mass ratio of 95:5-50:50, the nano semiconductor layer 12 is attached to the substrate layer 11 by sputtering coating, and the thickness of the nano semiconductor layer 12 is 20-2000 nm; the nano infrared absorption layer 13 is used for absorbing infrared laser signals, and the material thereof is cesium tungsten bronze, antimony tin oxide and lanthanum hexabromide mixed in any proportion, the nano infrared absorption layer 13 is attached to the nano semiconductor layer 12 by coating or sputtering coating, and the thickness of the nano infrared absorption layer 13 is 0.1-10 μm; the protective layer 14 is attached to the nano infrared absorption layer 13 by acrylic adhesive, and the thickness of the protective layer 14 is 10-50 μm; when infrared laser irradiates the film body 1, the nano semiconductor layer 12 of the film body 1 can shield electromagnetic radiation, and the nano infrared absorption layer 13 can absorb infrared laser at the same time, so that the effect of preventing laser electromagnetic leakage is realized; when the film body 1 is attached to glass, the protective layer 14 is torn off, water is sprayed on the surface of the glass, the nano infrared absorption layer 13 is in contact with the surface of the glass, and thus the film body 1 is attached to the glass.

[0034] One end of the membrane 1 is connected to a roll 2 for winding and storing it. An installation plate 21 is fixedly installed on the inner side wall of the roll 2. An installation post 22 is rotatably installed on one side of the installation plate 21. The end of the installation post 22 extends to the outside of the roll 2, and a connecting rod 23 is movably passed through the installation post 22. A pressure plate 24 that can contact the outer side wall of the roll 2 is installed on one end of the connecting rod 23. A driving member 25 connected to the connecting rod 23 is installed on the installation post 22, which is used to make the connecting rod 23 slide on the installation post 22 so that the pressure plate 24 abuts against the outer side wall of the roll 2.

[0035] On the other side of the mounting plate 21, a covering component 3 is installed to cover the membrane 1 which is wrapped around the outside of the roll 2.

[0036] By setting a protective layer 14 bonded to the nano-infrared absorption layer 13, the surface of the nano-infrared absorption layer 13 is protected, effectively preventing dust particles from adhering to the nano-infrared absorption layer 13 and affecting the adhesion of the membrane 1. By setting up the mounting post 22, connecting rod 23, pressure plate 24, and driving component 25, when the membrane 1 is wound around the outside of the roll 2, and the mounting post 22 rotates on the mounting plate 21, the pressure plate 24 is pulled, causing the connecting rod 23 to slide on the mounting post 22. Simultaneously, the connecting rod 23 rotates on the mounting post 22. At this time, the state of the driving component 25 changes. When the pressure plate 24 is located on the outer side of the membrane 1 away from the roll 2, the force on the pressure plate 24 is released, and the driving component 25 returns to its original state, thus achieving... The pressure plate 24 can press and position the end of the film body 1, effectively ensuring the winding state of the film body 1 by the roll 2, thus facilitating the transportation and storage of the film body 1. When the film body 1 outside the roll 2 needs to be used, pull the pressure plate 24 to make the connecting rod 23 slide on the mounting column 22, and at the same time make the connecting rod 23 rotate on the mounting column 22. When the pressure plate 24 is located outside the roll 2, the restriction on the film body 1 can be removed, and the film body 1 can be displayed and used. By setting the covering component 3, the film body 1 wrapped around the outside of the roll 2 can be covered, thereby further preventing dust particles from adhering to the film body 1, and effectively preventing wear on the surface of the film body 1 on the outer layer of the roll 2 during transportation and storage.

[0037] Example 2

[0038] like Figures 1-6 As shown, based on the above embodiments, this embodiment further provides the following:

[0039] In the embodiment, the driving member 25 comprises a connecting plate 251 and a spring 252, the connecting plate 251 is fixedly connected to the end of the connecting rod 23 away from the pressing plate 24, the spring 252 is sleeved outside the connecting rod 23, and the two ends of the spring 252 are respectively in abutment with the mounting column 22 and the connecting plate 251. In use, when the connecting rod 23 slides on the mounting column 22 by pulling the pressing plate 24, the spring 252 is deformed, and when the pressing plate 24 is located at the outside of the end of the film body 1 away from the reel 2, the spring 252 returns to the natural state, so that the connecting rod 23 is driven to slide on the mounting column 22 by the connecting plate 251, thereby positioning the end of the film body 1 by the pressing plate 24.

[0040] In the embodiment, the covering member 3 comprises a protective sleeve 31 fixedly installed on the side wall of the mounting plate 21, the protective sleeve 31 can be sleeved outside the film body 1 wound outside the reel 2, and the end of the protective sleeve 31 away from the mounting plate 21 can extend to the outside of the end of the reel 2 close to the connecting rod 23, and the end of the protective sleeve 31 away from the mounting plate 21 is provided with a closing assembly 32 for closing the opening of the end of the protective sleeve 31 away from the mounting plate 21. In use, when the film body 1 wound outside the reel 2 is covered, the end of the protective sleeve 31 away from the mounting plate 21 is turned over and sleeved outside the film body 1 wound outside the reel 2, and the end of the protective sleeve 31 away from the mounting plate 21 extends to the outside of the end of the reel 2 close to the connecting rod 23, and then the opening of the end of the protective sleeve 31 away from the mounting plate 21 is closed by the closing assembly 32, so that the film body 1 wound outside the reel 2 can be covered.

[0041] In the embodiment, the closing assembly 32 comprises an annular sleeve 321 fixedly installed on the end of the protective sleeve 31, the annular sleeve 321 and the protective sleeve 31 are made of polyethylene material, the annular sleeve 321 is provided with a notch 322 communicating with the inside of the annular sleeve 321, and the annular sleeve 321 is inserted with a tightening rope 323, the two ends of the tightening rope 323 extend to the outside of the notch 322, and the two ends of the tightening rope 323 extending to the notch 322 are connected with the positioning member 4, so that the two ends of the tightening rope 323 extending to the notch 322 are positioned by the positioning member 4. In use, the two ends of the tightening rope 323 extending to the notch 322 and the end of the protective sleeve 31 are held by two hands respectively, the two ends of the tightening rope 323 extending to the notch 322 are pulled to extend to the outside of the notch 322, so that the end of the protective sleeve 31 is closed, and then the two ends of the tightening rope 323 extending to the notch 322 close to the notch 322 are positioned by the positioning member 4, so that the opening of the end of the protective sleeve 31 away from the mounting plate 21 is closed by the closing assembly 32.

[0042] Embodiment three

[0043] As Figures 1-6 shown in the above embodiment, the present embodiment further gives the following content:

[0044] In the present embodiment, the positioning member 4 comprises a positioning block 41, a positioning plate 42, a spring two 43 and a pressing rod 44, the positioning block 41 is provided with a through hole 411 for the two ends of the tightening rope 323 to pass through, the positioning block 41 is internally provided with a containing cavity 412 in communication with the inner bottom wall of the through hole 411, the pressing rod 44 is movably penetrated through the top of the positioning block 41, the bottom of the pressing rod 44 extends into the containing cavity 412 and is fixedly installed with the positioning plate 42, the inner bottom wall of the containing cavity 412 is symmetrically fixedly installed with the spring two 43 which is fixedly connected with the positioning plate 42, when the spring two 43 is in a natural state, the top of the positioning plate 42 abuts against the inner top wall of the through hole 411, in use, the two ends of the tightening rope 323 extending to the gap 322 are respectively pulled out from the through hole 411 and located on both sides of the pressing rod 44, the two ends of the tightening rope 323 extending to the gap 322 are pulled, the two ends of the tightening rope 323 extending to the gap 322 are extended to the outside of the gap 322, so that when the end of the protective sleeve 31 is closed and the two ends of the tightening rope 323 extending to the gap 322 and close to the gap 322 are positioned by the positioning member 4, the pressing rod 44 is pressed to make the positioning plate 42 displace into the containing cavity 412, the two springs two 43 are deformed under stress, the positioning plate 42 does not contact the tightening rope 323, the positioning block 41 is displaced to the gap 322 outside the tightening rope 323, when the positioning block 41 is displaced to the gap 322, the pressing force on the pressing rod 44 is cancelled, the two springs two 43 return to the natural state, so that the positioning plate 42 can clamp and position the tightening rope 323 extending to the outside of the gap 322 through the top of the positioning plate 42 and the inner top wall of the through hole 411, which is simple to operate.

[0045] In the present embodiment, the connecting rod 23 comprises a round rod 231 movably penetrating through the mounting column 22, one end of the round rod 231 is threadedly penetrated through a threaded column 232, the pressing plate 24 is fixedly connected with the end of the threaded column 232, the connecting plate 251 is fixedly connected with the other end of the round rod 231, the spring one 252 is sleeved outside the round rod 231, through the design of the threaded column 232, in use, the round rod 231 is positioned, then a rotating force is applied to the pressing plate 24, so that the threaded column 232 spirally moves on the round rod 231, the distance between the pressing plate 24 and the round rod 231 is adjusted, so that the position of the pressing plate 24 can be adjusted according to the length of the film body 1 wound outside the reel 2, the end of the film body 1 is pressed and positioned, and the applicability is increased.

[0046] In the present embodiment, the mounting column 22 is dampingly and rotatably connected with the mounting plate 21, which effectively avoids the natural rotation of the mounting column 22 on the mounting plate 21.

[0047] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0048] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A film for preventing electromagnetic leakage of laser light, characterized by: The film body comprises a substrate layer, a nano semiconductor layer, a nano infrared absorption layer and a protective layer which are stacked from bottom to top. One end of the film body is connected with a reel for winding and storing the film body, an installation plate is fixedly installed on the inner side wall of the reel, an installation column is rotatably installed on one side of the installation plate, the end of the installation column extends to the outer side wall of the reel, a connecting rod is movably penetrated on the installation column, a pressing plate is installed on one end of the connecting rod and can contact the outer side wall of the reel, and a driving member connected with the connecting rod is installed on the installation column, which is used to make the connecting rod slide on the installation column so that the pressing plate is in contact with the outer side wall of the reel. The other side of the installation plate is provided with a covering member for the film body, which is used to cover the film body wound outside the reel.

2. The film of claim 1, wherein: The driving member comprises a connecting plate and a spring, and the end of the connecting rod away from the pressing plate is fixedly connected with the connecting plate, and the connecting rod is externally sleeved with the spring, and the two ends of the spring are in contact with the installation column and the connecting plate, respectively.

3. The film of claim 1, wherein: The covering member comprises a protective sleeve fixedly installed on the side wall of the installation plate, the protective sleeve can be sleeved outside the film body wound outside the reel, and the end of the protective sleeve away from the installation plate can extend to the outer side of the end of the reel close to the connecting rod, and a closing assembly is installed on the end of the protective sleeve away from the installation plate, which is used to close the opening of the end of the protective sleeve away from the installation plate.

4. The film of claim 3, wherein: The closing assembly comprises an annular sleeve fixed on the end of the protective sleeve, the annular sleeve is provided with a notch in communication with the inside of the annular sleeve, a tightening rope is inserted into the annular sleeve, the two ends of the tightening rope extend to the outside of the notch, and a positioning member is connected between the two ends of the tightening rope extending to the notch.

5. The film of claim 4, wherein: The positioning member comprises a positioning block, a positioning plate, a spring and a pressing rod, the positioning block is provided with a through hole for the two ends of the tightening rope to pass through, the positioning block is provided with a receiving cavity in communication with the bottom wall of the through hole, the pressing rod is movably penetrated on the top of the positioning block, the bottom of the pressing rod extends into the receiving cavity and is fixedly installed with the positioning plate, the bottom wall of the receiving cavity is symmetrically fixedly installed with the spring in fixed connection with the positioning plate, and when the spring is in a natural state, the top of the positioning plate is in contact with the top wall of the through hole.

6. The film of claim 2, wherein: The connecting rod comprises a round rod movably penetrated in the installation column, a threaded column is threaded penetrated on one end of the round rod, the pressing plate is fixedly connected with the end of the threaded column, the other end of the round rod is fixedly connected with the connecting plate, and the spring is sleeved outside the round rod.

7. The film of claim 1, wherein: The installation column and the installation plate are dampingly rotatably connected.

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