CN212753096U - Flexible and foldable electromagnetic shielding box - Google Patents

Abstract

The utility model relates to an electromagnetic wave information protection technical field, a flexible collapsible electromagnetic shield case, including collapsible support and the shielded cell main part of accomodating, water proof protective sheath, the shielded cell main part includes shielding box and shielding case lid, and shielding box and shielding case lid all adopt flexible compound conductive cloth of full wave band high-shielding efficiency to make up the shaping, and the interface overlap joint department of shielding box and shielding case lid adopts overlapping design and utilizes magnetic material to adsorb and zip fastener structure locking, the utility model discloses collapsible support of accomodating is assembled into every part by filter subassembly, last folding bracket component, preceding folding supporting rod subassembly, preceding supporting rod subassembly four bibliographic categories and divides and can independently fold to accomodate, accomodates and occupy small, and the connecting rod adopts glass fiber and the hollow aluminum pipe of aviation to make light in weight, intensity is high, good elasticity.

Description

Flexible and foldable electromagnetic shielding box

Technical Field

The utility model relates to an electromagnetic wave information protection technical field especially relates to a collapsible portable electromagnetic shield case of flexibility.

Background

The information safety is not negligible, with the rapid development of the information industry, hundreds of millions of important information and information in the aspects of military, politics, economy and the like are transmitted by various electronic equipment with large and small sizes through an information network all over the world at present, and information leakage accidents caused by electromagnetic radiation sometimes occur. Research shows that the electromagnetic wave emitted from the computer without electromagnetic shielding treatment may be received and reproduced in one kilometer away, and if the computer is used in tip receiving and decoding equipment, the maximum intercepted distance will be far away. The common mobile portable electronic products such as notebook computers, printers, scanners and the like are light and miniaturized to become the mainstream products for daily mobile office work and information processing, and because the electromagnetic protection level of the equipment is not high due to the volume relationship, a large amount of electromagnetic waves are leaked during working, the radiation frequency is from low frequency to high frequency, and the wave sources are magnetic field waves, electric field waves and electromagnetic waves. This just leads to using under the complex environment and can't satisfy the portable mobile electronic equipment of electromagnetic shield efficiency requirement and carrying out the secondary protection through having shielding package, the box that satisfies shielding efficiency, and this just requires that shielding case, shielding package etc. have light in weight, accomodate characteristics such as convenient to carry, electromagnetic shield efficiency height.

At present, common electromagnetic shielding cabinets have large volume and large occupied area, and a large amount of heavy metal plates such as steel and iron are used for processing and manufacturing, so that the common electromagnetic shielding cabinets have heavy volume and are inconvenient to be used as portable equipment and the like.

The electromagnetic shielding case is smaller than the electromagnetic shielding cabinet in volume, and can be conveniently carried, but along with the reduction of the volume, the volume of the electromagnetic shielding case for accommodating electronic equipment is also reduced. At present common shielded cell all adopts sheet metal, and the appearance size is produced according to customer's demand customization, and although the volume can effective control, weight is heavy, can't fold to accomodate and carry, carries very inconveniently when going out greatly because of occupation space.

The purpose of using the shielding box for the electronic equipment is to prevent information leakage caused by radiation of electromagnetic waves of information data when the electronic equipment works; and secondly, the situation that the equipment cannot work normally due to the interference of peripheral strong electromagnetic waves on the electronic equipment is prevented. In view of the above requirements, the electromagnetic shielding box needs to have high electromagnetic shielding effectiveness. At present, GJB5792-2006 electromagnetic shield grading and measuring method for military secret-related information systems is mainly implemented in the industry, wherein the shielding effectiveness needs to be more than 20dB when the low-frequency magnetic field is 14KHz according to the B-level standard, the shielding effectiveness is more than 70dB when the high-frequency magnetic field is 30MHz-1GHz, the shielding effectiveness is more than 60dB when the high-frequency magnetic field is 10GHz, and all shielding box products which can meet the B-level requirements at present adopt various metal plates capable of shielding electric fields and magnetic fields to splice a multilayer structure to meet the shielding effectiveness and have no foldability.

The shielding box body made of the flexible shielding material at present can not meet the requirement of grade B in GJB5792-2006 military secret information system electromagnetic shielding body grade division and measurement method. Some products can only meet the B-level standards related to space electromagnetic protection in GJBz20219-94 general technical requirements and inspection method for military electromagnetic shielding rooms and national security standard GGBB1-1999 emission limit for electromagnetic leakage of information equipment. The shielding effectiveness of the above standard can only meet 10dB at a magnetic field of 14 KHz;

therefore, the problem that the flexible shielding material can meet high shielding effectiveness in an electric field and a magnetic field needs to be solved when the flexible foldable shielding box is manufactured; the shielding material must have good wear resistance, folding property, tensile property and other properties; the interior bearing structure can realize quick folding and accomodate. The electric continuity and 360-degree end sealing performance of the electric field shielding material and the integrity of a magnetic field loop must be ensured by the processes of lapping, sewing and the like of the shielding material when the shielding box body is made of the flexible shielding material.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: how to provide a flexible foldable electromagnetic shielding box that can fold fast and accomodate, easy operation, occupation of land are small, the electromagnetic wave is difficult for revealing.

The utility model adopts the technical proposal that: the utility model provides a flexible collapsible electromagnetic shield case, including collapsible support (1) and shielded cell main part of accomodating, waterproof protective sheath (4), the shielded cell main part includes shielded cell (2) and shielded cell lid (3), shielded cell (2) and shielded cell lid (3) all adopt flexible compound conductive cloth of full wave band high shield efficiency to make up the shaping with the conductor wire, the interface overlap joint department of shielded cell (2) and shielded cell lid (3) adopts overlapping design and utilizes magnetic material to adsorb and zip fastener structure locking, waterproof protective sheath (4) are made at shielded cell (2) and shielded cell lid (3) skin, collapsible support (1) of accomodating is arranged in the shielded cell main part inboard, be provided with shielded cell hot-air outlet (9) on shielded cell lid (3), be provided with USB aviation connector interface (6) on shielded cell (2), 220V power aviation connector interface (7), Shield box cold air intake (8), correspond with the shield box main part on waterproof protective sheath (4) and be provided with shield box hot-air outlet (9), USB aviation connector interface (6), 220V power aviation connector interface (7), shield box cold air intake (8), the protective sheath top still is provided with shield box handle (10), still is provided with outer shield cover board (5) on the protective sheath bottom.

The seam of the shielding box body (2) and the shielding box cover (3) is overlapped by 50mm in width and is sewn and formed by a conductive wire double thread.

The hot air outlet (9) and the cold air inlet (8) of the shielding box are through holes, a first iron-nickel conductive foam (21) and a conductive shielding copper net are sewn at the through holes, and the thickness of the first iron-nickel conductive foam (21) is 1 mm.

The inner side wall of the shielding box cover (3) is provided with high-elastic wave-absorbing foam (35), the inner top of the shielding box cover (3) is provided with first flexible soft magnet (34), the shielding box cover (3) is provided with a tongue structure overlapped with the shielding box body (2), the outer side of the shielding box cover (3) is provided with first zipper structures (39) all around, and the shielding box body (2) is provided with a second zipper structure (23) matched with the first zipper structures (39), a zipper belt (22) and second flexible soft magnet (25) matched with the first flexible soft magnet (34).

The foldable containing support (1) comprises a filter component (11), an upper foldable support component (12), a front foldable support rod component (13) and a front support rod component (14), wherein the filter component (11) comprises a universal USB interface (1101), a filter box body (1102), a 220V power interface (1103), an air draft fan (1104), a rotating shaft mounting part (1106), a first equal-height limiting shaft screw (1107), a first support rod rotating connecting piece (1108), a first aluminum pipe support pipe (1109), a first spring (1110), a first movable sheath (1111), a first movable bolt (1112), a first sheath locking equal-height screw (1113), a first hinge (1114), a second support rod rotating connecting piece (1115), a first glass fiber support rod (1116), a first 180-degree foldable shaft joint (1117), a first aluminum pipe support pipe connecting rod (1118) and a second aluminum pipe support pipe (1119), the first aluminum pipe supporting pipe (1109) realizes the rotating and folding function within the upper 90-degree range through a first supporting rod rotating connecting piece (1108) and a first equal-height limiting shaft screw (1107). The upper folding bracket component (12) comprises a front folding bracket (1201), a movable bolt fixing block (1202), a third support rod rotating connector (1203), a second hinge (1204), a second glass fiber support rod (1205), a second 180-degree folding shaft joint (1206), a second aluminum pipe support pipe connecting rod (1207), a third aluminum pipe support pipe (1208), a second spring (1209), a second movable sheath (1210), a second sheath locking equal-height screw (1211), and a second movable bolt (1212), wherein the front folding support rod component (13) comprises a first front support glass fiber rod (131), a first corner seat (132), a second high limit shaft screw (133), a fourth support rod rotating connector (134), a fourth aluminum pipe support pipe (135), a third spring (136), a third sheath locking equal-height screw (137), a third movable sheath (138) and a third movable bolt (139), the front support rod assembly (14) comprises a second front support fiberglass rod (141) and a second corner seat (142).

The utility model has the advantages that: 1. the utility model discloses a shielding box body and a shielding box cover which are made of flexible composite conductive cloth with full-wave band high shielding effectiveness are simple and easy to make and form by adopting a conductive wire, the joint lap joint part adopts an upper cover and a lower cover extrusion overlapping matching structure to lap joint so as to effectively form a shielding sealing body and provide higher shielding effectiveness, a protective sleeve which is made of waterproof oxford cloth is sewn on the outer part of the shielding box body and has a waterproof function, and the inner part of the shielding box body and the shielding box cover are supported by a foldable containing bracket so as to; the special power and data interface of the aviation connector interface is designed outside at the back of the bottom, the cold air inlet is designed below the shielding box, the hot air outlet is designed at the top of the shielding box, the shielding box can be folded and stored while the exchange function of internal and external data is met, and the heat of the work of internal equipment is ensured to be timely dissipated through ventilation design so as to ensure stable work. The utility model discloses shielding box and shielding case lid all adopt shielding material to cut out seam crossing overlapping 50mm width design for the flexible compound conductive cloth of full wave band high shielding efficiency adopts the monoblock cloth to make up the shaping with the conductor wire double-line, have reduced the gap of shielding material kneck and have revealed, effectively connect through the electric continuity with shielding material with the conductor wire is effectual. The utility model discloses the ventilation hole on shielding box and the shielding case lid adopts punching hole on the flexible compound conductive cloth of full wave band high-shielding efficiency to adopting electric lead double-seam one deck iron-nickel conductive foam cotton and electrically conductive shielding copper mesh in the department of punching a hole, the high magnetic conductivity of make full use of iron-nickel material is imitated at the high screen in low frequency magnetic field, combines the combination of hole and copper mesh can effectively solve the problem of revealing because of the hole brings in the broadband within range. The utility model discloses the overlap joint of shielding box and shielding lid, overlap joint mode screen adopt shielding lid inboard top design flexible soft magnet, shielding box top is to the round inwards bending 50mm width all around to install flexible soft magnet after with the electrically conductive cloth of individual layer make up the parcel, flexible soft magnet is by magnetic force absorption messenger electrically conductive cloth in close contact with when shielding box and shielding case lid lock; the side shield is designed with high-elastic wave-absorbing foam, then the side shield is wrapped by conductive cloth and sewn with the conductive wire and the flexible composite conductive cloth of the shielding box cover with full-wave band and high shielding efficiency, tongue structures are designed around the shielding box cover, and a zipper is designed on the outer side of the shielding box cover. The design of the flexible composite conductive cloth with the full-wave band high shielding efficiency is provided with a U-shaped groove through a waistband structure, a zipper is designed on the outer side of the groove edge, the tongue of the upper cover and the U-shaped groove of the shielding box body can form an overlapping structure after the side walls are buckled, and when the zipper outside is tightened, the high-elastic wave-absorbing foam is extruded, so that the conductive cloth outside the high-elastic wave-absorbing foam and the flexible composite conductive cloth with the full-wave band high shielding efficiency of the shielding box body form an electric continuum through prepressing close contact to ensure the shielding efficiency of the shielding box. The utility model discloses collapsible support of accomodating is assembled into every part by wave filter subassembly, last folding bracket component, preceding folding strut assembly, preceding strut assembly four bibliographic categories and can independently fold and accomodate, accomodates and occupies smallly, and the connecting rod adopts glass fiber and the hollow aluminum pipe of aviation to make light in weight, intensity height, elasticity good. The utility model discloses the design of wave filter subassembly has power input filter and data signal wave filter, ensures that the design of the safe passing filter of input model avoids electromagnetic wave's interference and electromagnetic leakage, has diameter 3mm, thickness 7 mm's cold air intake in vent department design to installation air supply fan subassembly has solved the heat dissipation problem of shield box internal plant during operation.

The utility model discloses a flexible compound electrically conductive cloth of high shielding efficiency of full wave band is whole to be tailor two conducting wires and makes up technology preparation, makes it have excellent shielding efficiency at full wave band, can possess the shielding efficiency that is greater than 20dB at low frequency 10kHz simultaneously, and the laboratory test can satisfy the requirement of B level in GJB5792-2006 for military use secret information system electromagnetic shield body graduation and measuring method.

Drawings

FIG. 1 is an exploded view of a flexible and collapsible shielded enclosure component of the present invention;

fig. 2 is a schematic view of the flexible foldable shielding box of the present invention for ventilation and external cables;

FIG. 3 is a schematic diagram illustrating the fabric feeding and sewing of the outer protective jacket of the flexible foldable shielding box of the present invention;

FIG. 4 is a schematic diagram illustrating the blanking and sewing of the shielding material of the shielding box according to the present invention;

FIG. 5 is a schematic diagram illustrating the blanking and sewing of the shielding material of the shielding box cover according to the present invention;

fig. 6 is a partial schematic view of the shielding box cover and the shielding box body of the present invention;

fig. 7 is a partial schematic view of the structure of the shielding box and the shielding box cover of the present invention;

fig. 8 is a partial schematic view of the assembled state of the shielding box body and the shielding box cover in the shielding and sealing state of the present invention;

fig. 9 is an assembly schematic view of the foldable housing bracket component of the flexible foldable shielding box of the present invention;

fig. 10 is a schematic view of the foldable housing bracket of the flexible foldable shielding box according to the present invention;

fig. 11 is an exploded view of the filter assembly of the collapsible storage rack of the present invention;

fig. 12 is an exploded view of the upper folding bracket assembly of the collapsible storage bracket of the present invention in an assembled relationship;

fig. 13 is an exploded view of the front folding bracket assembly of the collapsible storage bracket of the present invention;

FIG. 14 is an exploded view of the front strut assembly of the collapsible storage rack of the present invention;

wherein, 1, collapsible storage support, 2, the shielding box body, 3, the shielding case lid, 4, waterproof protective sheath, 5, outer shielding apron, 6, USB aviation connector interface, 7, 220V power aviation connector interface, 8, shielding box cold air intake, 9, shielding box hot-air outlet, 10, shielding box handle, 11, filter subassembly, 1101, general USB interface, 1102, the filter box body, 1103, 220V power interface, 1104, induced-draft fan, 1106, pivot installed part, 1107, first class high spacing axle screw, 1108, first bracing piece rotation connecting piece, 1109, first aluminum pipe, 1110, first spring, 1111, first movable sheath, 1112, first movable bolt, 1113, first sheath locking screw with equal height 1114, 1111, first hinge, 1115, second bracing piece rotation connecting piece, 111, first glass fiber bracing piece, 1117, 1116, 1113, A first 180-degree folding shaft joint, 1118, a first aluminum pipe supporting pipe connecting rod, 1119, a second aluminum pipe supporting pipe, 12, an upper folding bracket component, 1201, a front folding bracket, 1202, a movable bolt fixing block, 1203, a third supporting pipe rotating connecting piece, 1204, a second hinge, 1205, a second glass fiber supporting rod, 1206, a second 180-degree folding shaft joint, 1207, a second aluminum pipe supporting pipe connecting rod, 1208, a third aluminum pipe supporting pipe, 1209, a second spring, 1210, a second movable sheath, 1211, a second sheath locking equal-height screw, 1212, a second movable bolt, 13, a front folding supporting rod component, 131, a first front supporting glass fiber rod, 132, a first corner seat, 133, a second equal-height limiting shaft screw, 134, a fourth supporting pipe rotating connecting piece, 135, a fourth aluminum pipe supporting pipe, 136, a third spring, 137, a third sheath equal-height locking screw, 138, a third movable sheath, 139. a third movable bolt, 14, a front support rod component, 141, a second front support fiberglass rod, 142, a second corner seat, 21, a first iron-nickel conductive foam, 22, a zipper belt, 23, a zipper lower tooth 24, a full-wave band flexible composite conductive cloth with high shielding efficiency, 25, a second flexible soft magnet,

31. iron-nickel conductive foam 32, a flexible composite conductive cloth blanking vent hole 33 with high shielding efficiency in full wave band, a conductive shielding copper net 34, flexible soft magnet 35, high-elastic wave-absorbing foam 36, conductive cloth 37, an inner layer of the flexible composite conductive cloth with high shielding efficiency in full wave band 38, an outer layer 39 of the flexible composite conductive cloth with high shielding efficiency in full wave band, teeth on a zipper,

41. rain-proof oxford, 42, a PET reinforcing plate, 43, filter fish mesh cloth, 44 and a canvas handle belt.

Detailed Description

A flexible foldable electromagnetic shielding box is characterized in that a foldable containing support 1 is used as an internal supporting structure, a shielding box body 2 and a shielding box cover 3 are sewn together through a conductive wire at one side of the rear side and connected through a zipper at the other three sides to form a shielding box main body; a layer of waterproof outer protective sleeve 4 is sewn on the outer side of the shielding box main body to form a flexible foldable electromagnetic shielding box, and a shielding box hot air outlet 9 and a shielding box handle 10 are designed on the flexible foldable electromagnetic shielding box body; the rear part of the bottom end of the flexible foldable electromagnetic shielding box is provided with a USB aviation connector interface 6, a 220V power aviation connector interface 7 and a shielding box cold air inlet 8, and the filter component 11 and the shielding box body 2 are locked and fixed through an external shielding cover plate 5.

When the foldable containing support 1 works, the foldable containing support 1 is unfolded to be used as an internal supporting structure, the shielding box cover 3 is opened, the electronic equipment is placed in the foldable containing support, then the shielding box cover 3 is buckled, and peripheral zippers are tightened to achieve a working state; when the shielding box is stored, the foldable storage support 1 is firstly stored, and then the shielding box body consisting of the shielding box body 2 and the shielding box cover 3 and the outer protective sleeve 4 are folded and stored together.

A flexible foldable electromagnetic shielding box outer protective sleeve is characterized in that firstly, rainproof oxford cloth 41 is used for marking and cutting along the shape; secondly, sewing a PET reinforcing plate 42 at the corresponding position of the bottom; thirdly, a 100 x 200mm ventilation opening is formed at the corresponding position of the top, and the filtering fishnet cloth 43 is sewn; fourthly, sewing a canvas handle belt 44 at the corresponding position of the top; and fifthly, sewing the inner sides of the rainproof oxford cloth 41 by double threads according to the corresponding relation of a-a, b-b, c-c, d-d, e-e and f-f by taking the inner lines of the marked areas as the reference at the positions a, b, c, d, e and f of the rainproof oxford cloth 41.

A flexible foldable shielding box body of an electromagnetic shielding box is characterized in that firstly, double layers of flexible composite conductive cloth 24 with high shielding effectiveness in a full wave band are overlapped, then scribing is carried out, and cutting is carried out along the shape; secondly, punching through holes with the diameter of 3mm at corresponding positions, installing first iron-nickel conductive foam 21 in the middle of the flexible composite conductive cloth 24 with the full-wave band high shielding efficiency, and sewing a circle of the first iron-nickel conductive foam from the periphery by using a conductive wire; thirdly, sticking a flexible soft magnet 24 in the middle of the flexible composite conductive cloth 24 with high shielding efficiency in all wave bands and sewing and fixing the flexible soft magnet 24 by using a conductive wire; fourthly, sewing and fixing the zipper lower teeth 23 by using double conducting wires by using double layers of the flexible composite conductive cloth 24 with the full-wave band high shielding efficiency, wherein the width of the double layers is 50mm, the length of the double layers is 2200mm, and the zipper lower teeth 23 are clamped in the middle of the double layers, and then sewing the double layers of the flexible composite conductive cloth on the flexible composite conductive cloth 24 with the full-wave band high shielding efficiency by using the double conducting wires; fifthly, sewing two sides of the base line by double lines after the parts a, b, c, d and e shown by the flexible composite conductive cloth 24 with high shielding efficiency in the full wave band are overlapped according to the corresponding relation of a-a, b-b, c-c, d-d and e-e by taking the inner lines of the marking areas as the reference; and sixthly, folding the area at the position f by 90 degrees inwards along the inner base line, overlapping and sewing the corners by adopting a diagonal line of 45 degrees, and respectively flanging the flexible composite conductive cloth 24 with the full-wave band high shielding efficiency inwards by 10mm in width and sewing and locking the edges by using double-line conductive wires.

A shielding case cover of a flexible foldable electromagnetic shielding case: firstly, scribing the inner layer 37 of the flexible composite conductive cloth with high shielding efficiency in the full wave band and cutting the inner layer along the shape; secondly, scribing the outer layer 38 of the flexible composite conductive cloth with high shielding efficiency in the full wave band and cutting the outer layer along the shape; thirdly, punching ventilation through holes with the diameter of 3mm at corresponding positions on the double layers of the flexible composite conductive cloth with the full-wave-band high shielding efficiency; fourthly, arranging iron-nickel conductive foam 31 between the inner layer and the outer layer of the flexible composite conductive cloth with high shielding efficiency in the full-wave band, and sewing a circle of iron-nickel conductive foam 31 along the periphery by using a conductive wire; fifthly, sticking flexible soft magnets 34 on the inner side of the inner layer 37 of the flexible composite conductive cloth with high shielding efficiency in the full wave band and sewing and fixing the soft magnets by using conductive wires; sixthly, sticking high-elastic wave-absorbing foam 35 on the inner side of the inner layer 37 of the flexible composite conductive cloth with high shielding efficiency in the full wave band and sewing and fixing the high-elastic wave-absorbing foam by using a conductive wire; seventhly, sewing a conductive shielding copper mesh 33 at a position corresponding to the conductive cloth 36, and then sewing and fixing the conductive cloth 36 and the inner layer 37 of the flexible composite conductive cloth with the full-wave band high shielding efficiency; and eighthly, folding the inner layer 37 of the flexible composite conductive cloth with the full-wave band high shielding efficiency inwards and outwards after the periphery is folded inwards by 90 degrees along the middle base line of the flexible soft magnet 34 and the high-elastic wave-absorbing foam 35 and the diagonal line of 45 degrees at the corner is overlapped and sewn, folding the outer layer 38 of the flexible composite conductive cloth with the full-wave band high shielding efficiency inwards and sewing the inner layer by using a double-line conductive wire, and sewing the upper teeth 39 of the zipper at the folded part of the outer layer 38 of the flexible composite conductive cloth with the full-wave band high shielding efficiency.

The utility model provides a collapsible electromagnetic shield case of flexibility, collapsible support 1 of accomodating is fixed at 2 inboard back bottoms of shielding box by filter subassembly 11 through countersunk screw and 5 locks of outside external shield apron and is corresponded the position, goes up folding bracket component 12, preceding folding support rod subassembly 13, preceding support rod subassembly 14 and passes through the magic subsides to be fixed rear portion on 2 inboard of shielding box respectively.

A filter assembly 11 of a collapsible storage rack 1:

firstly, a universal USB interface 1101 module and a 220V power interface 1103 module are installed on a filter box body 1102, and an inward exhaust fan 1104 is installed on the inner side of the filter box body 1102;

secondly, assembling the first spring 1110, the movable sheath 1111 and the first movable bolt 1112 in sequence at one end of the aluminum pipe support pipe 11109, locking the first movable bolt 1112 by using a first sheath locking equal-height screw 1113, and connecting the other end of the aluminum pipe support pipe 11109 with the first support rod rotating connector 1108 through a screw;

thirdly, a rotating shaft mounting piece 1106 is mounted on the left side of the filter box body 1102; and the aluminum pipe support pipe 1 assembly assembled in the second step is locked on the filter box body 1102 by a first equal-height limiting shaft screw 1107; the right upper support rod assembly method is the same as the second step to the third step;

fourthly, assembling one end of a second aluminum pipe support pipe 1119 according to the assembling sequence of a first spring 1110, a movable sheath 1111 and a first movable bolt 1112 and locking the first movable bolt with a first sheath locking equal-height screw 1113;

fifthly, the other end of the second aluminum pipe support pipe 1119 assembly assembled in the fourth step is bonded with the first 180-degree folding shaft joint 1117 through a first aluminum pipe support pipe connecting rod 1118, the other end of the first 180-degree folding shaft joint 1117 is bonded with one end of the glass fiber support rod 1116 through glue, and the other end of the glass fiber support rod 1116 is locked with the support rod rotating connecting piece 2 through a screw;

sixthly, a first hinge 1114 is arranged at the front left side of the filter box body 1102; and the second aluminum pipe support pipe assembly assembled in the fifth step is locked on the filter box body 1102 through a first hinge 1114; the right front support rod assembling method is the same as the fourth step to the sixth step;

upper folding bracket component 12 of foldable storage bracket 1

Firstly, mounting a movable bolt fixing block on a front folding bracket 1201 and locking the movable bolt fixing block through a screw;

secondly, installing and locking a first spring 1209, a first movable sheath 1210 and a first movable bolt 1212 at one end of the aluminum pipe support 21208 in sequence by using a first sheath locking equal-height screw 1211;

thirdly, the other end of the aluminum pipe support 21208 assembly assembled in the second step is bonded with the 180-degree folding shaft joint 1206 through an aluminum pipe support pipe connecting rod 1207, the other end of the 180-degree folding shaft joint 1206 is bonded with one end of the glass fiber support rod 1205 through glue, and the other end of the glass fiber support rod 1205 is connected with the support rod rotating connecting piece 2 through a screw;

fourthly, installing a hinge 1204 at the left side of the front folding bracket 1201 component; and the assembly assembled in the third step is locked on the left side of the front folding bracket 1201 assembly through a hinge 1204; the right front support bar assembling method is the same as the second step to the fourth step.

Foldable front folding support rod assembly 13 of storage bracket 1

Firstly, assembling one end of a fourth aluminum pipe support 135 according to the assembling sequence of a third spring 136, a third movable sheath 138 and a third movable bolt 139, locking the assembled end by using a locking equal-height screw 137 of the third sheath, and locking the other end of the fourth aluminum pipe support 135 with a fourth support rod rotating connecting piece 134 through a screw;

secondly, mounting first corner seats 132 at two ends of the first front support fiberglass rod 131 and locking the first corner seats by using screws; and the fourth aluminum tube support assembly assembled in the first step is locked on the first corner seat 132 by a second equal-height limiting shaft screw 133; the right upper support bar assembly method is the same as the first to second steps.

A front support rod assembly 14 of a foldable storage rack 1 is provided, wherein a second corner seat 142 is arranged at two ends of a second front support fiberglass rod 141 and is locked by screws.

The above description is a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principles and processes of the present invention, and other flexible foldable shielding boxes made by these improvements and decorations are all within the protection scope of the present invention.

The middle part can realize that 180 degrees of folding pole are folded through 180 degrees folding axle joints and accomodate the function to 180 degrees folding axle joints have the spacing dead lock function and can guarantee the horizontality of folding pole when expanding.

The utility model discloses a flexible collapsible electromagnetic shield case, through whole tailor two conducting wires of the electrically conductive cloth of flexible compound of full wave band high shield efficiency and make up technology preparation, make it have excellent shielding efficiency at full wave band, can possess the shielding efficiency that is greater than 20dB at low frequency 10kHz simultaneously, the laboratory test can satisfy the requirement of B level in GJB5792-2006 for military use secret information system electromagnetic shield body graduation and measuring method, laboratory test report serial number CTEC2019C119P106, laboratory test data is as last table.

Claims (6)

1. A flexible and foldable electromagnetic shielding box is characterized in that: comprises a foldable storage bracket (1), a shielding case main body and a waterproof protective sleeve (4), wherein the shielding case main body comprises a shielding case body (2) and a shielding case cover (3), the shielding case body (2) and the shielding case cover (3) are both formed by sewing flexible composite conductive cloth with full-wave band high shielding efficiency by using a conductive wire, the lap joint of the interfaces of the shielding case body (2) and the shielding case cover (3) adopts an overlapping design and is locked by utilizing magnetic material adsorption and a zipper structure, the waterproof protective sleeve (4) is sewn on the outer layers of the shielding case body (2) and the shielding case cover (3), the foldable storage bracket (1) is arranged on the inner side of the shielding case main body, a shielding case hot air outlet (9) is arranged on the shielding case cover (3), a USB aviation connector interface (6), a 220V power aviation connector interface (7) and a shielding case cold air inlet (8) are arranged on, the shielding box hot air outlet (9), the USB aviation connector interface (6), the 220V power aviation connector interface (7) and the shielding box cold air inlet (8) are correspondingly arranged on the waterproof protective sleeve (4) and correspond to the shielding box main body, a shielding box handle (10) is further arranged at the top of the protective sleeve, and an outer shielding cover plate (5) is further arranged at the bottom of the protective sleeve.

2. A flexible and foldable electromagnetic shielding case according to claim 1, wherein: the seam of the shielding box body (2) and the shielding box cover (3) is overlapped by 50mm in width and is sewn and formed by a conductive wire double thread.

3. A flexible and foldable electromagnetic shielding case according to claim 1, wherein: the hot air outlet (9) and the cold air inlet (8) of the shielding box are through holes, iron-nickel conductive foam and a conductive shielding copper net are sewn at the through holes, and the thickness of the iron-nickel conductive foam is 1 mm.

4. A flexible and foldable electromagnetic shielding case according to claim 1, wherein: the inner side wall of the shielding box cover (3) is provided with high-elastic wave-absorbing foam (35), the inner top of the shielding box cover (3) is provided with first flexible soft magnet (34), the shielding box cover (3) is provided with a tongue structure overlapped with the shielding box body (2), the outer side of the shielding box cover (3) is provided with first zipper structures (39) all around, and the shielding box body (2) is provided with a second zipper structure (23) matched with the first zipper structures (39), a zipper belt (22) and second flexible soft magnet (25) matched with the first flexible soft magnet (34).

5. A flexible and foldable electromagnetic shielding case according to claim 1, wherein: the foldable containing support (1) comprises a filter component (11), an upper foldable support component (12), a front foldable support rod component (13) and a front support rod component (14), wherein the filter component (11) comprises a universal USB interface (1101), a filter box body (1102), a 220V power interface (1103), an air draft fan (1104), a rotating shaft mounting part (1106), a first equal-height limiting shaft screw (1107), a first support rod rotating connecting piece (1108), a first aluminum pipe support pipe (1109), a first spring (1110), a first movable sheath (1111), a first movable bolt (1112), a first sheath locking equal-height screw (1113), a first hinge (1114), a second support rod rotating connecting piece (1115), a first glass fiber support rod (1116), a first 180-degree foldable shaft joint (1117), a first aluminum pipe support pipe connecting rod (1118) and a second aluminum pipe support pipe (1119), the first aluminum pipe supporting pipe (1109) realizes the rotating and folding function within the upper 90-degree range through a first supporting rod rotating connecting piece (1108) and a first equal-height limiting shaft screw (1107).

6. A flexible and foldable electromagnetic shielding case according to claim 5, wherein: the upper folding bracket component (12) comprises a front folding bracket (1201), a movable bolt fixing block (1202), a third support rod rotating connector (1203), a second hinge (1204), a second glass fiber support rod (1205), a second 180-degree folding shaft joint (1206), a second aluminum pipe support pipe connecting rod (1207), a third aluminum pipe support pipe (1208), a second spring (1209), a second movable sheath (1210), a second sheath locking equal-height screw (1211), and a second movable bolt (1212), wherein the front folding support rod component (13) comprises a first front support glass fiber rod (131), a first corner seat (132), a second high limit shaft screw (133), a fourth support rod rotating connector (134), a fourth aluminum pipe support pipe (135), a third spring (136), a third sheath locking equal-height screw (137), a third movable sheath (138) and a third movable bolt (139), the front support rod assembly (14) comprises a second front support fiberglass rod (141) and a second corner seat (142).

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