An embedded electromagnetic shielding door system that can be used for both hand and flashlight

Abstract

This invention discloses an embedded dual-purpose (manual and electric) electromagnetic shielded door system, comprising an embedded door frame assembly, a gantry bracket assembly, a lower guide rail, an adjustable threshold component, a composite door leaf, a door leaf drive assembly, and a sliding assembly. The sliding assembly is connected to the composite door leaf via a lifting arm, and the door leaf drive assembly is connected to the lower guide rail. The door leaf drive assembly moves along the lower guide rail, opening and closing the composite door leaf in cooperation with the sliding assembly. The adjustable threshold component includes a threshold body, a threshold drive assembly, a lifting assembly, a lifting threshold, a linear drive assembly, and a support plate. The support plate is slidably mounted on the lifting threshold, and the threshold drive assembly and the lifting assembly drive the lifting threshold vertically up and down, sealing the bottom of the composite door leaf. This system has both manual and electric opening and closing modes, high reliability, secure connection, good electromagnetic shielding capability, good passage after the door leaf is opened, and broad application prospects.

Description

Technical Field

[0001] This invention relates to the field of embedded electromagnetic shielding door technology with airtightness requirements, and specifically to an embedded dual-purpose electric hand and flashlight electromagnetic shielding door system. Background Technology

[0002] Electromagnetic shielded doors are widely used in special buildings such as computer rooms, precision instrument rooms, metrology rooms, and central control rooms to prevent external electromagnetic fields (waves) from affecting the normal operation of indoor electrical equipment and precision instruments, creating a closed space to block electromagnetic fields (waves). For conventional electrically operated sliding electromagnetic shielded doors, beryllium copper springs are typically used to improve shielding performance. However, for shielded doors with higher shielding requirements, traditional designs are insufficient. To further improve the shielding performance of electromagnetic shielded doors, and to ensure that the permalloy does not experience excessive compressive force during the door leaf and frame compression (permalloy's electromagnetic conductivity decreases under high compressive force), it is imperative to improve the fixed threshold structure. This necessitates abandoning the existing fixed threshold structure and developing a multi-functional shielded door system that can simultaneously adjust the compressive force during the door leaf and frame compression and fill the recessed area after the door is opened. Summary of the Invention

[0003] The purpose of this invention is to provide an embedded dual-purpose electromagnetic shielded door system that can be operated manually or electrically. This system solves the shortcomings of existing doors that can only be opened and closed manually, improves the reliability of the system, has good electromagnetic shielding capabilities, good magnetic stability, good passability after the door is opened, facilitates vehicle passage, has a compact structure, occupies little space, and has broad application prospects.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An embedded dual-purpose (hand and flashlight) electromagnetic shielded door system includes an embedded door frame assembly fixedly mounted on a building wall, a gantry bracket assembly fixedly mounted on the inner side of the building wall, a lower guide rail located at the bottom of the inner side of the building wall, an adjustable threshold component located on the lower side of the embedded door frame assembly, a composite door leaf movably mounted on the embedded door frame assembly, a door leaf drive assembly fixedly mounted on the bottom side of the composite door leaf, and a sliding assembly slidably mounted on the gantry bracket assembly. The sliding assembly is fixedly connected to the composite door leaf via a lifting arm, and one end of the door leaf drive assembly is poweredly connected to the lower guide rail; the system controls the door leaf drive assembly to move along the lower guide rail. The sliding assembly enables the opening and closing of the composite door leaf. The adjustable threshold component includes a threshold body, a threshold drive assembly mounted on the threshold body, a lifting assembly powered by the threshold drive assembly, a lifting threshold fixedly mounted on the lifting assembly, a linear drive assembly fixedly mounted on the lifting threshold, and a support plate fixedly mounted at one end of the linear drive assembly. The support plate is slidably mounted on the lifting threshold. The threshold drive assembly and the lifting assembly drive the lifting threshold to move it vertically up and down, sealing the bottom of the composite door leaf. When the composite door leaf is opened, the linear drive assembly extends the support plate to cover the groove corresponding to the bottom position of the composite door leaf.

[0006] Preferably, the embedded door frame assembly includes a magnetic door frame, a conductive metal ring fixedly disposed on the magnetic door frame, and a beryllium copper spring fixedly disposed on the magnetic door frame, wherein the magnetic door frame is fixedly installed on the building wall.

[0007] Preferably, the composite door leaf includes a door leaf frame, an aluminum partition fixedly disposed on one side of the door leaf frame, an embedded boss frame fixedly disposed on one side of the aluminum partition, a permalloy layer wrapped around the outside of the door leaf frame, conductive cotton filled inside the permalloy layer, a copper plate fixedly disposed on one side of the embedded boss frame, an aluminum plate fixedly disposed on one side of the copper plate, and an insulating non-magnetic material filled inside the aluminum partition.

[0008] Preferably, a copper pressure knife is fixedly disposed on the copper plate, and the copper pressure knife is arranged in a rectangular frame shape in the circumferential direction of the aluminum plate; two protrusions are provided on the copper pressure knife, which are respectively adapted to the conductive metal ring and the beryllium copper spring. When the composite door leaf is closed on the embedded door frame assembly, the two protrusions contact the conductive metal ring and the beryllium copper spring respectively to achieve a sealed connection.

[0009] Preferably, a guide assembly is also installed on the threshold body. The guide assembly includes a guide support, a linear bearing fixedly mounted on the guide support, and a guide column slidably mounted on the linear bearing. The top of the guide column is fixedly mounted on the lifting threshold.

[0010] Preferably, the linear drive assembly includes a fixed bracket fixedly mounted on the lifting sill, a horizontal slide rail fixedly mounted on the fixed bracket, a first slider fixedly mounted on the fixed bracket, a second slider slidably mounted on the horizontal slide rail, a lead screw rotatably mounted on the fixed bracket, a first commutator fixedly mounted on the lifting sill or the fixed bracket, and a scissor-type telescopic member rotatably mounted on the first and second sliders. A lead screw nut is fixedly mounted on the second slider. The lead screw is poweredly connected to the lead screw nut. One end of the lead screw is fixedly connected to the output end of the first commutator. A first manual wheel is detachably mounted on the input end of the first commutator. One end of the scissor-type telescopic member is fixedly connected to the support plate.

[0011] Preferably, the sliding assembly includes a steel frame slidably mounted on the top of the gantry bracket assembly via a transverse slider, a longitudinal slide rail fixedly mounted on the steel frame, and a longitudinal slider slidably mounted on the longitudinal slide rail, with one end of the lifting arm fixedly connected to the longitudinal slider.

[0012] Preferably, the embedded door frame assembly is further provided with a locking assembly, which includes two rows of swing rods rotatably mounted on the embedded door frame assembly, a locking slot block fixedly mounted on the composite door leaf at the position corresponding to the swing rod, a vertical pull rod hinged to the other end of each row of swing rods, a horizontal pull rod movably connected to the two vertical pull rods via an angle transmission plate, a mounting bracket fixedly mounted on the embedded door frame assembly, a drive cylinder fixedly mounted on the mounting bracket, and a manual handle hinged to the vertical pull rod. The extended end of the drive cylinder is hinged to the manual handle, and one end of the manual handle is fixedly connected to one of the swing rods; one end of the swing rod is engaged in the locking slot block.

[0013] Preferably, the sill drive assembly includes two second commutators fixedly installed on both sides of the sill body, a drive shaft fixedly installed on the output end of the second commutators, and a second manual wheel detachably installed on the second commutators. The lifting assembly is poweredly connected to the drive shaft, and when the drive shaft rotates, it drives the lifting assembly to rise or fall.

[0014] Preferably, the lower guide rail includes an L-shaped guide groove fixedly installed in a ground groove and a rack fixedly installed in the L-shaped guide groove, with an arc transition section at the corner of the L-shaped guide groove; the door drive assembly includes a swing arm bracket fixedly connected to the composite door leaf at one end, a motor bracket fixedly installed on the other end of the swing arm bracket, a dual-drive reduction motor fixedly installed on the motor bracket, and a guide wheel and a drive gear fixedly installed on the output shaft of the dual-drive reduction motor, the drive gear meshing with the rack, and the guide wheel rolling or sliding in the L-shaped guide groove.

[0015] In this invention, beryllium copper spring sheets are a material with relatively high magnetic permeability, serving to provide a tight magnetic connection between the door leaf and the door frame. In magnetically shielded doors, they guide the electromagnetic field from the door leaf to the door frame and then to the ground. Furthermore, beryllium copper spring sheets have good elasticity and a long service life, avoiding frequent replacements. The conductive metal ring is also an elastic body similar to a rubber ring, made of a metal with high magnetic permeability, increasing the magnetic permeability between the door leaf and the door frame.

[0016] The composite door leaf adopts a top sliding suspension and bottom sliding drive installation and driving method, which makes the composite door leaf have strong structural stability and reduces the probability of failure during the opening and closing process. Its door leaf drive component does not bear the weight of the composite door leaf, and the driving stability is good.

[0017] The adjustable threshold component enables both vertical lifting and horizontal sealing. The threshold drive assembly and lifting assembly move the threshold vertically, sealing and securing the bottom of the composite door panel when closed, improving its airtightness and reliability. When the composite door panel is fully open, a recess is exposed at the bottom. A linear drive assembly extends a support plate to cover this recess, ensuring a level surface for vehicles and pedestrians, improving transportation convenience and pedestrian safety.

[0018] The composite door leaf is convex in shape, providing excellent electromagnetic shielding and preventing electromagnetic interference between the inside and outside of the door, thus offering superior electromagnetic protection. The locking mechanism allows for quick and stable locking and unlocking of the composite door leaf, ensuring overall robustness and ease of operation. This invention's electromagnetic shielding door employs a novel door frame design and an electric opening and closing mechanism, significantly improving its shielding performance. Furthermore, the lifting door frame opening and closing mode offers the advantage of a threshold-free design, making it particularly suitable for electromagnetic shielding of large openings. Attached Figure Description

[0019] Figure 1 This is an isometric view of the overall structure of the present invention;

[0020] Figure 2 This is a front view schematic diagram of the overall structure of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the structure BB of the present invention;

[0022] Figure 4 This is a schematic diagram of the CC cross-section of the structure of the present invention;

[0023] Figure 5 This is an enlarged schematic diagram of a local structure in direction A of the present invention;

[0024] Figure 6 This is an isometric view of the embedded door frame assembly structure of the present invention;

[0025] Figure 7 This is a partial enlarged cross-sectional view of the embedded door frame component structure of the present invention;

[0026] Figure 8 This is a schematic cross-sectional view of the composite door structure of the present invention;

[0027] Figure 9 This is a partially enlarged schematic diagram of the composite door structure of the present invention along direction D;

[0028] Figure 10 This is a partially enlarged schematic diagram of the lower guide rail structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the copper pressure knife structure of the present invention;

[0030] Figure 12 This is a partially enlarged schematic diagram of the vertical cross-section of the copper pressure knife of the present invention;

[0031] Figure 13 This is an isometric view of the adjustable sill component structure of the present invention;

[0032] Figure 14 This is a front view schematic diagram of the adjustable sill component of the present invention;

[0033] Figure 15 This is a top view of the linear drive component structure of the present invention;

[0034] Figure 16 This is a schematic diagram of the door drive assembly structure of the present invention;

[0035] Figure 17 This is a schematic diagram of the sliding component structure of the present invention;

[0036] Figure 18 This is a schematic diagram of the locking component structure of the present invention;

[0037] Figure 19 This is an enlarged schematic diagram of a partial structure of the locking component of the present invention;

[0038] Figure 20 This is an enlarged schematic diagram of another partial structure of the locking component of the present invention;

[0039] In the diagram: 1. Building wall; 2. Embedded door frame assembly; 3. Gantry bracket assembly; 4. Lower guide rail; 5. Adjustable threshold component; 6. Composite door leaf; 7. Door leaf drive assembly; 8. Sliding assembly; 9. Locking assembly; 10. Protective eaves; 11. Hanging bracket; 12. Hanging arm; 20. Magnetic door frame; 21. Conductive metal ring; 22. Beryllium copper spring; 30. Gantry support frame; 31. Horizontal slide rail; 32. Polyurethane anti-collision block; 33. U-shaped reinforcing bar; 40. L-shaped guide groove; 41. Rack; 50. Threshold body; 51. Threshold drive assembly; 52. Lifting assembly; 53. Lifting threshold; 54. Linear drive assembly; 55. Support plate; 56. Guide assembly; 60. Door leaf frame; 61. Aluminum partition; 62. Embedded boss frame; 63. Permalloy layer; 64. Conductive cotton; 65. Copper plate; 66. Aluminum plate 67. Insulating non-magnetic material; 68. Copper pressure knife; 69. Protrusion; 70. Swing arm bracket; 71. Motor bracket; 72. Dual-drive geared motor; 73. Guide wheel; 74. Drive gear; 80. Transverse slider; 81. Steel frame; 82. Longitudinal slide rail; 83. Longitudinal slider; 90. Swing rod; 91. Locking slot block; 92. Vertical tie rod; 93. Angle transmission plate; 94. Transverse tie rod; 95. Mounting bracket; 96. Drive cylinder; 97. Manual handle; 510. Second commutator; 511. Drive shaft; 512. Second manual wheel; 540. Fixed bracket; 541. Horizontal slide rail; 542. First slider; 543. Second slider; 544. Lead screw; 545. First commutator; 546. Scissor-type telescopic component; 547. First manual wheel; 560. Guide support; 561. Linear bearing; 562. Guide column. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings:

[0041] like Figures 1 to 20The illustrated embedded dual-purpose electric and handheld electromagnetic shielded door system includes an embedded door frame assembly 2 fixedly mounted on a building wall 1, a gantry bracket assembly 3 fixedly mounted on the inner side of the building wall 1, a lower guide rail 4 fixedly mounted at the bottom of the inner side of the building wall 1, an adjustable threshold component 5 mounted on the lower side of the embedded door frame assembly 2, a composite door leaf 6 movably mounted on the embedded door frame assembly 2, a door leaf drive assembly 7 fixedly mounted on one side of the bottom of the composite door leaf 6, and a sliding assembly 8 slidably mounted on the gantry bracket assembly 3. The sliding assembly 8 is fixedly connected to the composite door leaf 6 via a lifting arm 12. One end of the door leaf drive assembly 7 is poweredly connected to the lower guide rail 4. The operator controls the door leaf drive assembly 7 to move along the lower guide rail 4, thereby opening and closing the composite door leaf 6 with the cooperation of the sliding assembly 8. In this embodiment, a protective eaves 10 is provided at the top of the building wall 1, directly above the composite door leaf 6. A hanging bracket 11 is fixedly mounted on the protective eaves 10, providing support for the installation of the composite door leaf 6.

[0042] The embedded door frame assembly 2 includes a magnetic door frame 20, a conductive metal ring 21 fixedly disposed on the inner ring of the magnetic door frame 20, and a beryllium copper spring 22 fixedly disposed on the magnetic door frame 20. The outer side of the magnetic door frame 20 is sealed and fixedly installed on the door frame hole provided in the building wall 1. Both the beryllium copper spring 22 and the conductive metal ring 21 have good magnetic permeability, which improves the magnetic conduction effect when the embedded door frame assembly 2 is sealed to the composite door leaf 6.

[0043] The composite door leaf 6 includes a door leaf frame 60, an aluminum partition 61 fixedly disposed on one side of the door leaf frame 60, an embedded boss frame 62 fixedly disposed on one side of the aluminum partition 61, a permalloy layer 63 wrapped around the outside of the door leaf frame 60, conductive cotton 64 filled inside the permalloy layer 63, a copper plate 65 fixedly disposed on one side of the embedded boss frame 62, an aluminum plate 66 fixedly disposed on one side of the copper plate 65, and an insulating non-magnetic material 67 filled inside the aluminum partition 61. The composite door leaf 6 is convex in shape, has good electromagnetic shielding capability, and achieves electromagnetic non-interference between the inside and outside of the door, thus providing good electromagnetic protection capability. A copper pressure knife 68 is fixedly disposed on the copper plate 65. The copper pressure knife 68 is rectangular in shape and is disposed on the circumferential outer side of the aluminum plate 66, and is adapted to the corresponding installation position of the magnetic door frame 20. Two protrusions 69 are provided on the copper pressure knife 68, which are respectively adapted to the conductive metal ring 21 and the beryllium copper spring 22. When the composite door leaf 6 is closed on the embedded door frame assembly 2, the two protrusions 69 contact the conductive metal ring 21 and the beryllium copper spring 22 respectively, achieving a sealed magnetic connection with good contact stability and ensuring the magnetic conductivity. An inspection door is also provided on the composite door leaf 6 for emergency maintenance.

[0044] The adjustable door sill component 5 includes a door sill body 50, a door sill drive assembly 51 fixedly mounted on the door sill body 50 by fasteners, a lifting assembly 52 powered by the door sill drive assembly 51, a lifting door sill 53 fixedly mounted on the top of the lifting assembly 52 by fasteners, a linear drive assembly 54 fixedly mounted on the lifting door sill 53 by fasteners, and a support plate 55 fixedly mounted on the extended end of the linear drive assembly 54 by fasteners. The support plate 55 is slidably mounted on the lifting door sill 53. The operator controls the movement of the door sill drive assembly 51 and the lifting assembly 52 to drive the lifting door sill 53 to rise and fall vertically, sealing the bottom of the composite door leaf 6. When the composite door leaf 6 is opened, the support plate 55 extends through the linear drive assembly 54 to cover the ground groove corresponding to the bottom position of the composite door leaf 6, ensuring the safe passage of vehicles and personnel.

[0045] One, two, three, or more sets of guide components 56 are also installed on the sill body 50. Each guide component 56 includes a guide support 560 fixedly mounted on the sill body 50 by fasteners, a linear bearing 561 fixedly mounted on the guide support 560, and a guide post 562 slidably mounted on the linear bearing 561. The top of the guide post 562 is fixedly mounted on the bottom of the lifting sill 53. In this embodiment, the guide support 560 is cubic in shape, with four linear bearings 561 provided on each guide support 560. A guide post 562 is slidably mounted on each linear bearing 561. The linear bearings 561 can also be replaced by guide sleeves.

[0046] The sill drive assembly 51 includes two second commutators 510 fixedly mounted on the left and right sides of the sill body 50 by fasteners, a drive shaft 511 fixedly mounted on the output end of the second commutators 510 by a coupling, and a second manual wheel 512 detachably mounted on the input end of the second commutators 510. The lifting assembly 52 is poweredly connected to the drive shaft 511. When the second manual wheel 512 is rotated, causing the drive shaft 511 to rotate, the lifting assembly 52 is driven to rise or fall, thus controlling the raising and lowering of the sill 53. In this embodiment, the lifting assembly 52 is a commercially available screw jack. The input shaft of the screw jack is connected to the drive shaft 511 by a coupling, and the lifting output end of the screw jack is mounted on the bottom of the sill 53. In a preferred embodiment, a geared drive motor is poweredly connected to the input end of the second commutator 510, enabling manual and electric control of the sill drive assembly 51.

[0047] The linear drive assembly 54 includes a fixed bracket 540 fastened to the lifting sill 53 by fasteners, two horizontal slide rails 541 fastened to the top sides of the fixed bracket 540 by fasteners, a first slider 542 fixedly mounted on the fixed bracket 540, a second slider 543 slidably mounted on the two horizontal slide rails 541, a lead screw 544 rotatably mounted on the fixed bracket 540 via bearing seats, a first commutator 545 fixedly mounted on the lifting sill 53 or the fixed bracket 540, and a scissor-type telescopic member 54 rotatably mounted on the first slider 542 and the second slider 543 via pins. 6. A lead screw nut is fixedly installed on the bottom of the second slider 543. The lead screw 544 is poweredly connected to the lead screw nut. One end of the lead screw 544 is fixedly connected to the output end of the first commutator 545 through a coupling. A first manual wheel 547 is detachably installed on the input end of the first commutator 545. One end of the scissor-type telescopic component 546 is fixedly connected to the support plate 55 through fasteners. When the lead screw 544 is rotated by the first manual wheel 547 and the first commutator 545, the second slider 543 slides back and forth linearly along the horizontal slide rail 541 through the lead screw nut, causing the scissor-type telescopic component 546 to extend or retract, realizing linear motion. The support plate 55 is slidably installed on the lifting sill 53 through the slider and slide rail structure. On the one hand, it improves the stability of linear motion. On the other hand, the slider and slide rail structure bears the vertical load, avoiding the linear drive component 54 from being subjected to loads perpendicular to the direction of motion, and ensuring the smooth operation of the linear drive component 54.

[0048] The sliding assembly 8 includes a steel frame 81 slidably mounted on the top of the gantry bracket assembly 3 via transverse sliders 80, two longitudinal slide rails 82 fixedly mounted on both sides of the top of the steel frame 81 by fasteners, and multiple longitudinal sliders 83 slidably mounted on the longitudinal slide rails 82. One end of the lifting arm 12 is fixedly connected to the longitudinal sliders 83 by fasteners or welding. The gantry bracket assembly 3 includes a gantry support frame 30 fixedly mounted on the inside of the building wall 1, two transverse slide rails 31 fixedly mounted on the top of the gantry support frame 30, multiple polyurethane anti-collision blocks 32 fixedly mounted on both sides of the top of the gantry support frame 30, and U-shaped reinforcing bars 33 fixedly mounted on the left and right sides of the gantry support frame 30. The U-shaped reinforcing bars 33 also serve as ladders for personnel operation. Two transverse sliders 80 are slidably mounted on each transverse slide rail 31. The sliding assembly 8 and the gantry bracket assembly 3 enable the composite door leaf 6 to move in both the front-back and left-right directions.

[0049] The lower guide rail 4 includes an L-shaped guide groove 40 fixedly installed in a recess in the ground and a rack 41 fixedly installed in the L-shaped guide groove 40 by fasteners or welding. A rounded transition section is provided at the corner of the L-shaped guide groove 40. The door leaf drive assembly 7 includes a swing arm bracket 70 fixedly connected at one end to the composite door leaf 6 by fasteners, a motor bracket 71 fixedly installed at the other end of the swing arm bracket 70 by fasteners, a dual-drive reduction motor 72 fixedly installed on the motor bracket 71, a guide wheel 73 rotatably installed on the output shaft of the dual-drive reduction motor 72, and a drive gear 74 fixedly installed on the output shaft of the dual-drive reduction motor 72. The drive gear 74 meshes with the rack 41, and the guide wheel 73 rolls or slides within the L-shaped guide groove 40. The end of the dual-drive reduction motor 72 has a handwheel, enabling electric or manual rotation, thus realizing both manual and electric opening and closing control of the composite door leaf 6.

[0050] A locking assembly 9 is also provided on the embedded door frame assembly 2. The locking assembly 9 includes two vertical rows of swing rods 90 rotatably mounted on the embedded door frame assembly 2 via pins, a locking slot block 91 fixedly mounted on the composite door leaf 6 corresponding to the position and number of the swing rods 90, a vertical pull rod 92 hinged to the other end of each row of swing rods 90, a horizontal pull rod 94 movably connected to the two vertical pull rods 92 via two angle transmission plates 93, a mounting bracket 95 fixedly mounted on the embedded door frame assembly 2, a drive cylinder 96 fixedly mounted on the mounting bracket 95 via fasteners, and a manual handle 97 hinged to the vertical pull rods 92 via pins. The extended end of the drive cylinder 96 is hinged to the manual handle 97 via pins, one end of the manual handle 97 is fixedly connected to a swing rod 90, and one end of the swing rod 90 is engaged in the locking slot block 91. The vertical pull rods 92, angle transmission plates 93, and horizontal pull rods 94 enable the two rows of swing rods 90 to move in unison.

[0051] Under normal conditions, the composite door leaf 6 is in the closed state. At this time, one end of the swing rod 90 is engaged in the locking groove 91, which increases the clamping force on the composite door leaf 6 to seal it on the embedded door frame assembly 2. When it is necessary to open the composite door leaf 6, firstly, the locking assembly 9 is opened, and one end of the swing rod 90 is rotated out from the inside of the locking groove 91; then, the adjustable threshold component 5 is lowered electrically or manually, so that the top of the lifting threshold 53 is separated from the bottom of the composite door leaf 6, providing space for the composite door leaf 6 to open; next, the door leaf drive assembly 7 is activated, so that the composite door leaf 6 moves inward along the lower guide rail 4, and then moves horizontally to the right or left side of the door until the composite door leaf 6 is fully opened; finally, the lifting threshold 53 is raised to the specified height by the threshold drive assembly 51 and the lifting assembly 52, and the support plate 55 is extended by the linear drive assembly 54 to cover the ground groove corresponding to the bottom position of the composite door leaf 6, ensuring the safe passage of vehicles and personnel.

[0052] The above embodiments are merely illustrative of the concept and implementation of the present invention and are not intended to limit it. Under the concept of the present invention, technical solutions without substantial changes are still within the scope of protection.

Claims

1. An embedded electromagnetic shielding door system that can be used as both a handheld device and a flashlight, characterized in that: The utility model relates to a kind of adjustable door sill components, including fixedly arranged in building wall (1) embedded door frame assembly (2), fixedly installed in building wall (1) inner side portal bracket assembly (3), setting in the lower guide rail (4) of building wall (1) inner side bottom, adjustable door sill component (5) is set in the lower side of embedded door frame assembly (2), composite door leaf (6) is movably installed in embedded door frame assembly (2), door leaf drive assembly (7) is fixedly installed in the bottom side of composite door leaf (6) and slidingly set on the sliding assembly (8) of portal bracket assembly (3), the sliding assembly (8) is fixedly connected with the composite door leaf (6) by hanging arm (12), one end of the door leaf drive assembly (7) is power connected on the lower guide rail (4);Composite door leaf (6) is opened and closed by the cooperation of sliding assembly (8) to control door leaf drive assembly (7) movement along lower guide rail (4);The adjustable door sill component (5) includes door sill main body (50), door sill drive assembly (51) installed on door sill main body (50), lifting assembly (52) power installed on door sill drive assembly (51), lifting door sill (53) fixedly installed on lifting assembly (52), linear drive assembly (54) fixedly installed on lifting door sill (53) and support plate (55) fixedly installed on one end of linear drive assembly (54), the support plate (55) is slidingly installed on the lifting door sill (53), lifting door sill (53) is driven vertically by door sill drive assembly (51) and lifting assembly (52) Sealing is carried out to the bottom of composite door leaf (6);When composite door leaf (6) is opened, support plate (55) is extended by linear drive assembly (54) to shield the recess corresponding to the bottom position of composite door leaf (6); Guide assembly (56) is also installed on the door sill main body (50), and the guide assembly (56) includes guide support (560), linear bearing (561) fixedly arranged on the guide support (560) and guide column (562) slidingly installed on the linear bearing (561), and the top of the guide column (562) is fixedly installed on the lifting door sill (53). The straight line driving assembly (54) comprises a fixed support (540) fixedly installed on the lifting door sill (53), a horizontal slide (541) fixedly installed on the fixed support (540), a first sliding block (542) fixedly installed on the fixed support (540), a second sliding block (543) slidingly installed on the horizontal slide (541), a screw rod (544) rotatably installed on the fixed support (540), a first reverser (545) fixedly installed on the lifting door sill (53) or the fixed support (540), and a scissor type telescopic piece (546) rotatably installed on the first sliding block (542) and the second sliding block (543), wherein a nut is fixedly arranged on the second sliding block (543), the screw rod (544) is in power connection with the nut, one end of the screw rod (544) is fixedly connected with an output end of the first reverser (545), a first manual wheel (547) is detachably installed on an input end of the first reverser (545), and one end of the scissor type telescopic piece (546) is fixedly connected with the support plate (55). The sliding assembly (8) comprises a steel framework (81) slidingly installed on the top of the gantry support assembly (3) through a transverse sliding block (80), a longitudinal slide rail (82) fixedly installed on the steel framework (81), and a longitudinal sliding block (83) slidingly installed on the longitudinal slide rail (82), wherein one end of the cantilever arm (12) is fixedly connected with the longitudinal sliding block (83). The lower guide rail (4) comprises an L-shaped guide groove (40) fixedly installed in a ground groove and a rack (41) fixedly installed in the L-shaped guide groove (40), wherein a circular arc transition part is arranged at the corner of the L-shaped guide groove (40); the door leaf driving assembly (7) comprises a swing arm bracket (70) fixedly connected with one end of the composite door leaf (6), a motor support (71) fixedly installed on the other end of the swing arm bracket (70), a double-drive speed reduction motor (72) fixedly installed on the motor support (71), and a guide wheel (73) and a drive gear (74) fixedly installed on the output shaft of the double-drive speed reduction motor (72), wherein the drive gear (74) is in meshing connection with the rack (41), and the guide wheel (73) rolls or slides in the L-shaped guide groove (40).

2. The recessed flashlight dual-purpose electromagnetic shield door system according to claim 1, characterized in that: The embedded door frame assembly (2) comprises a magnetically conductive door frame (20), an electrically conductive metal ring (21) fixedly arranged on the magnetically conductive door frame (20), and a beryllium copper reed (22) fixedly arranged on the magnetically conductive door frame (20), wherein the magnetically conductive door frame (20) is fixedly installed on the building wall (1).

3. The recessed flashlight dual-purpose electromagnetic shield door system according to claim 2, characterized in that: The composite door leaf (6) comprises a door leaf framework (60), an aluminum partition (61) fixedly arranged on one side of the door leaf framework (60), an embedded boss framework (62) fixedly arranged on one side of the aluminum partition (61), a permalloy layer (63) wrapped on the outer side of the door leaf framework (60), conductive cotton (64) filled in the permalloy layer (63), a copper plate (65) fixedly arranged on one side of the embedded boss framework (62), an aluminum plate (66) fixedly arranged on one side of the copper plate (65), and an insulating non-magnetic material (67) filled in the aluminum partition (61).

4. The recessed flashlight dual-purpose electromagnetic shield door system according to claim 3, characterized in that: The copper pressing knife (68) is fixedly arranged on the copper plate (65) and arranged in a rectangular frame shape around the aluminum plate (66); two protrusions (69) respectively matched with the conductive metal ring (21) and the beryllium copper reed (22) are arranged on the copper pressing knife (68), and when the composite door leaf (6) is closed on the embedded door frame assembly (2), the two protrusions (69) are respectively in contact with the conductive metal ring (21) and the beryllium copper reed (22) to realize airtight connection.

5. The recessed flashlight dual-purpose electromagnetic shield door system according to claim 1, wherein: The embedded door frame assembly (2) is further provided with a locking assembly (9), the locking assembly (9) comprises two rows of swing rods (90) rotatably arranged on the embedded door frame assembly (2), a locking groove block (91) fixedly installed on the composite door leaf (6) at a position corresponding to the swing rod (90), a vertical pull rod (92) hingedly connected to the other end of each row of swing rods (90), a horizontal pull rod (94) movably connected to the two vertical pull rods (92) through an angle transmission plate (93), a mounting bracket (95) fixedly installed on the embedded door frame assembly (2), a drive cylinder (96) fixedly installed on the mounting bracket (95), and a manual handle (97) hingedly installed on the vertical pull rod (92), wherein the extension end of the drive cylinder (96) is hingedly connected to the manual handle (97), and one end of the manual handle (97) is fixedly connected to one of the swing rods (90); one end of the swing rod (90) is clamped in the locking groove block (91).

6. The recessed flashlight dual-purpose electromagnetic shield door system according to claim 5, characterized in that: The door sill driving assembly (51) comprises two second commutators (510) fixedly installed on both sides of the door sill body (50), a driving shaft (511) fixedly installed on the output end of the second commutator (510), and a second manual wheel (512) detachably installed on the second commutator (510), the lifting assembly (52) is in power connection with the driving shaft (511), and when the driving shaft (511) rotates, the lifting assembly (52) is driven to ascend or descend.

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