A high shielding effectiveness fire rated electromagnetic shielding door having a viewing window

Abstract

The application discloses a high-shielding-performance fireproof electromagnetic shielding door with an observation window and relates to the technical field of electromagnetic shielding doors. The electromagnetic shielding door comprises a control unit, a mounting sleeve, a support frame arranged on the inner side of the mounting sleeve, a deformation piece arranged on the inner side of the support frame, a pressing rod penetrating through the side wall of the mounting sleeve, a pressure control switch arranged on the inner wall of the mounting sleeve, and an indicator connected with the pressure control switch. The electromagnetic shielding door has the beneficial effects that the locking unit is arranged, the automatic locking can be realized when the electromagnetic shielding door is closed, the indoor equipment is effectively prevented from being interfered by external electromagnetic signals, and in addition, when a fire breaks out, the indicator light on the closed shielding door starts to flicker, an intuitive visual signal is provided for the staff, and it is clearly shown that the door is in the closed state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electromagnetic shielding doors, and particularly relates to a high-shielding-efficiency fireproof electromagnetic shielding door with an observation window. BACKGROUND

[0002] An electromagnetic shielding door is a door specially designed to prevent electromagnetic waves from entering or leaving a specific area. Its main purpose is to protect sensitive electronic equipment from external electromagnetic interference or to prevent internal generated electromagnetic signals from leaking to the external environment. Electromagnetic shielding doors are widely used in communication facilities, data centers, laboratories, medical imaging rooms, and military and government agencies that require high security.

[0003] The existing electromagnetic shielding doors mainly focus on preventing electromagnetic interference in the design, but they have obvious shortcomings in emergency situations such as fires. In addition, personnel in emergency situations may forget to close the shielding door that has been opened due to mental stress, and the lack of corresponding warning signs to prompt the opening and closing state of the shielding door further increases the risk. Fire or smoke can enter the room through the gap of the unsealed door, causing damage to the internal electronic equipment. SUMMARY

[0004] In view of the above or existing problems in the prior art, the present application is proposed.

[0005] Therefore, the purpose of the present application is to provide a high-shielding-efficiency fireproof electromagnetic shielding door with an observation window, which solves the problem that people cannot accurately determine the state of the shielding door due to the lack of warning signs when the current electromagnetic shielding door is in a fire.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a high-shielding-efficiency fireproof electromagnetic shielding door with an observation window, comprising a control unit, a locking unit, and an observation window.

[0007] The control unit comprises a mounting sleeve, a support frame arranged on the inner side of the mounting sleeve, a deformation piece arranged on the inner side of the support frame, a pressing rod penetrating the side wall of the mounting sleeve, a pressure control switch arranged on the inner wall of the mounting sleeve, and an indicator connected with the pressure control switch.

[0008] The locking unit comprises a fixed shell, a fixed frame arranged on the inner side of the fixed shell, a locking piece penetrating the side wall of the fixed shell, a rotating piece linked with the locking piece, a limiting piece arranged on the circumferential outer side of the rotating piece, and a locking rod linked with the limiting piece.

[0009] The locking rod penetrates the side wall of the fixed shell, and the end thereof can abut against the pressing rod.

[0010] The deformation member comprises an elastic card, a supporting plate arranged at the bottom of the elastic card, an expansion block arranged at the opening position of the elastic card, a positioning sleeve arranged outside the expansion block, a push rod arranged at the end of the positioning sleeve, and a second reset member arranged at the side wall of the supporting plate;

[0011] The supporting frame comprises guide columns arranged at one side and a sliding groove opened on the surface of the supporting frame;

[0012] The sliding groove is matched with the supporting plate, the second reset member is arranged outside the guide column, the guide column penetrates through the supporting plate and extends to the outside thereof;

[0013] The elastic card is in dovetail structure, and the opening end of the elastic card extends to both sides with an extension plate D;

[0014] The expansion block pushes the free end of the elastic card to open after being heated, and the elastic card is in concave structure;

[0015] The surface of the extension plate D of the elastic card corresponds to the end surface of the pressing rod;

[0016] The end of the pressing rod can abut against the surface of the extension plate D of the elastic card, and the movement of the pressing rod can drive the elastic card to move synchronously;

[0017] The push rod moves synchronously with the elastic card, so that the push rod abuts against the pressure control switch.

[0018] As a preferred scheme of the high shielding performance fireproof electromagnetic shielding door with an observation window, the mounting sleeve comprises through holes arranged on the side wall thereof, and a stop rod is arranged inside the through hole;

[0019] The pressing rod further comprises a first reset member arranged on the inner wall of the groove;

[0020] The stop rod is matched with the groove, one end of the first reset member abuts against the inner wall of the groove, and the other end abuts against the stop rod.

[0021] As a preferred scheme of the high shielding performance fireproof electromagnetic shielding door with an observation window, the end surface of the extension plate D of the elastic card is flush with the inner wall of the groove;

[0022] The pressing rod moves along the axis direction of the through hole, so that the end surface of the extension plate D of the elastic card abuts against the inner wall of the groove.

[0023] As a preferred scheme of the high shielding performance fireproof electromagnetic shielding door with an observation window, the cross section of the fixing frame is in L-shaped structure, and the fixing frame is connected with the fixing shell.

[0024] The limiting piece comprises a sliding block, a trapezoidal block arranged at the bottom of the sliding block, a first guide rod arranged at the end surface of the sliding block, and a third reset piece arranged at the top of the sliding block.

[0025] The fixing frame further comprises a guide rail arranged at the inner side end surface thereof.

[0026] The guide rail is matched with the sliding block, and the limiting piece is in sliding connection with the guide rail.

[0027] The end portion of the third reset piece abuts against the surface of the fixing frame.

[0028] As a preferred scheme of the high-shielding-performance fireproof electromagnetic shielding door with an observation window, the locking rod comprises a ball arranged at one end thereof, and a fixing plate arranged at the other end of the ball.

[0029] The surface of the fixing plate is provided with a first waist hole.

[0030] The first waist hole is matched with the first guide rod.

[0031] The movement of the locking rod along the horizontal direction can drive the limiting piece to move along the vertical direction.

[0032] As a preferred scheme of the high-shielding-performance fireproof electromagnetic shielding door with an observation window, the rotating piece comprises a disc and a second guide rod arranged at the end surface of the disc.

[0033] The side wall of the disc is provided with a clamping groove.

[0034] The clamping groove is matched with the trapezoidal block, and the trapezoidal block can be clamped into the clamping groove, thereby limiting the rotating piece.

[0035] As a preferred scheme of the high-shielding-performance fireproof electromagnetic shielding door with an observation window, the locking piece comprises a connecting frame, a locking column arranged at the end surface of the connecting frame, and a fourth reset piece arranged at the inner side of the connecting frame.

[0036] The side wall of the connecting frame is provided with a second waist hole.

[0037] The second waist hole is matched with the second guide rod, and the rotation of the rotating piece can drive the locking piece to move along the horizontal direction.

[0038] The locking column penetrates through the side wall of the fixing shell and extends to the outer side thereof.

[0039] As a preferred scheme of the high-shielding-performance fireproof electromagnetic shielding door with an observation window, the high-shielding-performance fireproof electromagnetic shielding door with an observation window further comprises

[0040] The opening and closing unit comprises a door frame, a shielding door hinged to the door frame, and a lock slot arranged on the inner side of the door frame.

[0041] The lock slot is internally provided with a first lock hole matched with the locking column and a second lock hole matched with the ball.

[0042] The fixed shell is mounted on the inner side of the shielding door.

[0043] The mounting sleeve is arranged on the inner side of the lock slot, and the end of the pressing rod penetrates into the inner side of the second lock hole.

[0044] The present application has the following beneficial effects: the locking unit is arranged to automatically lock when the electromagnetic shielding door is closed, effectively preventing the indoor equipment from being interfered by external electromagnetic signals; in addition, when a fire occurs, the indicator light on the closed shielding door will start to flash, providing an intuitive visual signal for the staff and clearly showing that the door is in a closed state; this not only ensures that the shielding door can be reliably kept closed in an emergency, but also enhances the safety awareness and emergency response efficiency of the personnel, thereby better protecting the shielding door from maintaining a closed state when a fire occurs and protecting the safety of the internal equipment. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment 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.

[0046] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0047] Figure 2 It is a schematic diagram of the lock slot and locking member cooperation structure of the present application.

[0048] Figure 3 It is a partial sectional view of the fixed shell of the present application.

[0049] Figure 4 It is an enlarged view of the structure at A of the present application. Figure 3

[0050] Figure 5 It is an exploded structural schematic diagram of the locking unit of the present application.

[0051] Figure 6 It is an enlarged view of the structure at B of the present application. Figure 5

[0052] Figure 7 ​​Partial sectional view of mounting sleeve of the present application.

[0053] Figure 8 Explosive structural schematic view of control unit of the present application.

[0054] In the figure: 1, control unit; 11, mounting sleeve; 12, support frame; 121, guide column; 122, sliding groove; 13, deformation piece; 131, elastic card; 132, support plate; 133, expansion block; 134, positioning sleeve; 135, push rod; 136, second reset piece; 14, pressing rod; 141, groove; 142, first reset piece; 15, pressure control switch; 16, indicator; 2, locking unit; 21, fixed shell; 22, fixed frame; 221, guide rail; 23, locking piece; 231, connecting frame; 2311, second waist hole; 232, locking column; 233, fourth reset piece; 24, rotating piece; 241, disc; 2411, clamping groove; 242, second guide rod; 25, limiting piece; 251, sliding block; 252, trapezoidal block; 253, first guide rod; 254, third reset piece; 26, locking rod; 261, ball; 262, fixed plate; 2621, first waist hole; 3, opening and closing unit; 31, door frame; 32, shielding door; 33, locking groove; 331, first lock hole; 332, second lock hole. DETAILED DESCRIPTION

[0055] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0056] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from the description, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0057] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive with other embodiments.

[0058] Embodiment 1

[0059] Reference Figures 4-8This is the first embodiment of the present invention. This embodiment provides a high-shielding fireproof electromagnetic shielding door with an observation window, which includes a control unit 1, including a mounting sleeve 11, a support frame 12 disposed inside the mounting sleeve 11, a deformable member 13 disposed inside the support frame 12, a pressure rod 14 passing through the side wall of the mounting sleeve 11, a pressure control switch 15 disposed inside the inner wall of the mounting sleeve 11, and an indicator 16 connected to the pressure control switch 15.

[0060] In this embodiment, the mounting sleeve 11 is a hollow rectangular column structure. The bottom of the support frame 12 is connected to the inner bottom wall of the mounting sleeve 11. The support frame 12 and the mounting sleeve 11 are fixed by bolt connection. The cross-section of the support frame 12 is an "I" shaped structure. The support frame 12 mainly supports the deformable part 13, so that the deformable part 13 can move along the inner wall of the sliding groove opened on the surface of the support frame 12.

[0061] It should be noted that the deformable part 13 is an elastic metal structure. When the deformable part 13 is subjected to external force, its free end will expand outward, so that the free end of the deformable part 13 can expand outward, thereby ensuring that the end of the deformable part 13 can be connected to the pressure rod 14. In this way, the pressure rod 14 can move to drive the deformable part 13 to move, thus ensuring that the pressure rod 14 moves to drive the deformable part 13 to move synchronously.

[0062] Specifically, when subjected to high temperature, the deformable part 13 absorbs heat and expands, causing the free end of the deformable part 13 to open outward, and then the end of the deformable part 13 can come into contact with the pressure rod 14. Under normal conditions, the free end of the deformable part 13 is adapted to the groove opened inside the pressure rod 14. During the movement of the pressure rod 14, its end does not contact the deformable part 13, and the movement of the pressure rod 14 will not push the deformable part 13 to move.

[0063] Preferably, when the free end of the deformable element 13 expands outward, the end of the deformable element 13 will abut against the end of the pressure rod 14. As the pressure rod 14 moves, the deformable element 13 will move synchronously with the pressure rod 14. When the deformable element 13 moves, the pressure contact rod provided at its end will abut against the pressure control switch 15. Then, the pressure control switch 15 will sense the pressure signal and activate the indicator 16, causing the indicator 16 to flash. The staff can judge the opening and closing status of the shielded door by the situation through the indicator 16. This can effectively prevent the staff from opening the shielded door without closing it.

[0064] Further, the locking unit 2 comprises a fixed shell 21, a fixed frame 22 arranged inside the fixed shell 21, a locking piece 23 penetrating the side wall of the fixed shell 21, a rotating piece 24 linked with the locking piece 23, a limiting piece 25 arranged outside the circumference of the rotating piece 24, and a locking rod 26 linked with the limiting piece 25; the locking rod 26 penetrates the side wall of the fixed shell 21, and the end thereof can abut against the pressing rod 14.

[0065] In the embodiment, the fixed shell 21 is installed inside the shielding door, and the inside of the fixed shell 21 is a hollow structure, and the fixed shell 21 provides appropriate movement space for other parts; the fixed frame 22 is arranged inside the fixed shell 21, and the fixed frame 22 is installed inside the fixed shell 21 by means of bolt connection; the locking piece 23 penetrates the fixed shell 21 and extends outward, and the locking piece 23 extends into the locking slot inside the door opening, so that the door can be locked and closed.

[0066] Further, the rotating piece 24 is linked with the locking piece 23, and the rotating piece 24 rotates to drive the locking piece 23 to move along the horizontal direction; by rotating the rotating piece 24, the end of the locking piece 23 can be driven to move away from the inside of the locking slot, so that the door can be opened.

[0067] Specifically, the locking rod 26 is linked with the limiting piece 25, the locking rod 26 penetrates the side wall of the fixed shell 21 and extends outward, and the locking rod 26 is arranged along the vertical direction with the locking piece 23; the locking rod 26 moves along the horizontal direction to drive the limiting piece 25 to move along the vertical direction, and the movement directions of the locking rod 26 and the limiting piece 25 are perpendicular.

[0068] Further, the limiting piece 25 arranged can limit the rotating piece 24, so that the rotating piece 24 is fixed at an appropriate position; when the rotating piece 24 is fixed, the position of the locking piece 23 is also relatively fixed.

[0069] In use, when the door needs to be opened, the rotating piece 24 is rotated to drive the locking piece 23 to move, so that the end of the locking piece 23 moves towards the fixed shell 21, and the end of the locking piece 23 moves away from the inside of the locking slot; then the door is pushed to open; at this time, the rotating piece 24 is rotated by a certain angle, so that the groove arranged on the side wall of the rotating piece 24 corresponds to the limiting piece 25, and the limiting piece 25 is clamped into the groove of the rotating piece 24 under the elastic force of the reset member; then the position of the rotating piece 24 can be fixed, so that the end of the locking piece 23 is submerged into the inside of the shielding door and is fixed.

[0070] When it is needed to close the shielding door, only need to push the door close to the door frame, in the process, the end of the locking rod 26 is extruded by the end face of the door frame, so that the locking rod 26 is pressed and moves to the direction close to the fixed shell 21, and then the locking rod 26 moves to drive the limiting piece 25 to move away from the rotating piece 24, so that the limiting piece 25 is separated from the inside of the groove of the rotating piece 24; at this time, the rotating piece 24 is no longer limited, the reset piece arranged at the end of the locking piece 23 pushes the locking piece 23 to reset, and further drives the rotating piece 24 to rotate; when the door frame and the door are in a completely matched position, the locking piece 23 is matched with the groove arranged in the inside of the door lock; the locking piece 23 is inserted into the inside of the door lock, so that the position between the shielding door and the door frame can be fixed; at this time, the end of the limiting piece 25 is in contact with the outer wall of the rotating piece 24, the locking rod 26 will be extruded by the end of the locking rod 26, so that the pressure rod 14 can be pushed to move along the horizontal direction, when the fire occurs, the end of the 13 can be in contact with the end face of the pressure rod 14, so that the movement of the pressure rod 14 can push the deformation piece 13 to move, and then the deformation piece 13 can be in contact with the pressure control switch 15, and then the indicator 16 can be turned on through the pressure control switch 15, so that the opening and closing state of the shielding door can be better determined by the staff; and when in the normal state, the pressure rod 14 generally does not push the deformation piece 13 to move, and the indicator 16 also does not flash, but the shielding door can be normally closed.

[0071] In summary, the locking unit is arranged, the electromagnetic shielding door can be automatically locked when being closed, the indoor equipment can be effectively prevented from being disturbed by external electromagnetic signals, when the fire occurs, the indicator light on the closed shielding door can start to flash, an intuitive visual signal is provided for the staff, and it is clearly shown that the door is in the closed state, the shielding door can be reliably kept closed in an emergency, the safety awareness and emergency response efficiency of the staff are enhanced, the shielding door can be better maintained in the closed state when the fire occurs, and the safety of the internal equipment is protected.

[0072] Embodiment 2

[0073] Reference Figures 2-8 For the second embodiment of the application, different from the first embodiment is that: further comprising a mounting sleeve 11, the mounting sleeve 11 comprises a through hole arranged on the side wall, and a blocking rod is arranged in the through hole; the pressure rod 14 comprises a groove 141 arranged on the side wall, and a first reset piece 142 arranged on the inner wall of the groove 141; the blocking rod is matched with the groove 141, one end of the first reset piece 142 is in contact with the inner wall of the groove 141, and the other end is in contact with the blocking rod.

[0074] In the embodiment, the mounting sleeve 11 has a through hole formed in the side wall thereof, and a stop rod is connected to the inner wall of the through hole; the stop rod is fixedly connected to the mounting sleeve 11; the through hole provides space for the movement of the pressing rod 14, thereby ensuring that the pressing rod 14 can penetrate into the mounting sleeve 11.

[0075] The end of the pressing rod 14 penetrating into the mounting sleeve 11 has an end-opening groove 141 formed therein, and the groove 141 is matched with the stop rod; the side wall of the stop rod abuts against the inner wall of the groove 141, thereby enabling the pressing rod 14 to perform reciprocating linear motion along the axial direction of the mounting sleeve 11.

[0076] Preferably, the groove 141 has a first reset member 142 arranged therein, and the first reset member 142 is preferably a spring; the groove 141 provides sufficient space for the deformation of the first reset member 142; one end of the first reset member 142 is fixedly connected to the pressing rod 14, and the other end abuts against the surface of the stop rod; when the first reset member 142 releases the elastic stored energy, the first reset member 142 can push the pressing rod 14 to reset, thereby enabling the end of the pressing rod 14 to penetrate to the outside of the locking groove in the normal state.

[0077] Further, the deforming member 13 includes an elastic card 131, a support plate 132 arranged at the bottom of the elastic card 131, an expansion block 133 arranged at the opening position of the elastic card 131, a positioning sleeve 134 arranged at the outer side of the expansion block 133, a push rod 135 arranged at the end of the positioning sleeve 134, and a second reset member 136 arranged at the side wall of the support plate 132; the support frame 12 includes a guide column 121 arranged at one side, and a sliding groove 122 formed on the surface of the support frame 12; the sliding groove 122 is matched with the support plate 132, the second reset member 136 is arranged at the outer side of the guide column 121, and the guide column 121 penetrates through the support plate 132 and extends to the outer side thereof.

[0078] In the embodiment, the elastic card 131 is made of spring steel and has a dovetail-shaped structure in the normal state; one end of the elastic card 131 is an open end, and the other end is a fixed end; a deforming groove is formed at the connection position of the elastic card 131 close to the fixed end, thereby enabling the elastic card 131 to deform when subjected to external force.

[0079] The support plate 132 is welded and fixed to the bottom of the elastic card 131 close to the fixed end, and the cross section of the support plate 132 has an L-shaped structure; the support plate 132 is matched with the sliding groove 122, thereby enabling the support plate 132 to slide along the inner wall of the sliding groove 122, and thereby enabling the moving direction of the support plate 132 to be controlled.

[0080] The expansion block 133 is made of nickel-titanium alloy, and two ends of the expansion block 133 are connected with inner walls of free ends of the elastic card 131; the expansion block 133 is made of a curved metal sheet, and when heated, the expansion block 133 will expand and open, and then the expansion block 133 pushes the free ends of the elastic card 131 to be in an open state, so that the elastic card 131 changes from a " swallow-tail shape" to a "concave" shape.

[0081] The positioning sleeve 134 is hollow inside, is arranged outside the expansion block 133 and at the opening end of the elastic card 131, and is integrally formed between the positioning sleeve 134 and the push rod 135, so that when the elastic card 131 moves, the push rod 135 can move synchronously with the elastic card 131.

[0082] One end of the second reset member 136 is welded and fixed with the support plate 132, so that when the support plate 132 moves, the second reset member 136 is compressed to be in an energy storage state; when the support plate 132 is no longer extruded by an external force, the second reset member 136 releases elastic potential energy to push the support plate 132 to reset.

[0083] Specifically, the second reset member 136 is preferably a spring, and the second reset member 136 is sleeved outside the guide column 121, so that the guide column 121 can effectively prevent the second reset member 136 from exceeding the elastic deformation range during compression.

[0084] Further, the elastic card 131 is in a swallow-tail shape, the opening end of the elastic card 131 extends to both sides and has an extension plate D, an end surface of the extension plate D of the elastic card 131 is flush with an inner wall of the groove 141, and the pressing rod 14 moves along the axis direction of the through hole to realize that the end surface of the extension plate D of the elastic card 131 abuts against the inner wall of the groove 141.

[0085] In the embodiment, the elastic card 131 has protruding extension plates extending outward from both sides of the opening end; when the elastic card 131 is in a swallow-tail shape, the distance between the two ends of the extension plates added to the opening end of the elastic card 131 is flush with the fixed end of the elastic card 131; and the size of the groove 141 is matched with the fixed end of the elastic card 131, so that the elastic card 131 can be just clamped inside the groove 141.

[0086] During movement of the pressing rod 14 along the axis direction of the through hole under extrusion of an external force, the end of the pressing rod 14 does not abut against the end surface of the elastic card 131, so that the movement of the pressing rod 14 cannot push the elastic card 131 to move, and the push rod 135 cannot abut against the pressure control switch 15, so that the indicator light cannot flicker.

[0087] Further, the expansion block 133 pushes the free end of the elastic card 131 to open after being heated, and the elastic card 131 has a concave structure; the surface of the extension plate D of the elastic card 131 corresponds to the end surface of the pressure rod 14; the end of the pressure rod 14 can be in contact with the surface of the extension plate D of the elastic card 131, and the movement of the pressure rod 14 can drive the elastic card 131 to move synchronously; the push rod 135 moves synchronously with the elastic card 131, thereby realizing the contact between the push rod 135 and the pressure control switch 15.

[0088] In this embodiment, the expansion block 133 can push the free end of the elastic card 131 to open after being heated, thereby ensuring that the elastic card 131 has a concave structure; in this state, the extension plates D extending outward on both sides of the free end of the elastic card 131 can be in contact with the end surface of the pressure rod 14; the pressure rod 14 can drive the elastic card 131 to move synchronously during the movement of the pressure rod 14 along the axis direction of the through hole; the movement of the elastic card 131 drives the movement of the push rod 135 connected to the end surface of the positioning sleeve 134, thereby enabling the push rod 135 to contact the pressure control switch 15, thereby pressing the pressure control switch 15; when the pressure control switch 15 senses the pressure, it will control the indicator 16 to flash, so that the staff can better confirm the opening and closing state of the shielding door.

[0089] In use, in the normal state, the pressure rod 14 will move along the axis direction of the through hole under the external pressure, but since the opening end size of the elastic card 131 is matched with the groove 141, the movement of the pressure rod 14 will not push the elastic card 131 to move, thereby preventing the pressure control switch 15 from being touched; when a fire occurs, the temperature rises due to the influence of smoke or fire, causing the expansion block 133 to expand rapidly after being heated, which pushes the opening end of the elastic card 131 to open, so that the extension plates on both sides of the elastic card 131 are in contact with the end surface of the pressure rod 14; the movement of the pressure rod 14 can synchronously push the elastic card 131 to move, so that the elastic card 131 drives the push rod 135 to move, thereby enabling the push rod 135 to touch the pressure control switch 15, and the pressure control switch 15 can make the indicator 16 emit light and flash; the opening and closing state of the shielding door can be directly judged by observing the indicator 16; when the indicator 16 is not observed to flash, the staff can quickly make a judgment and close the door.

[0090] In summary, when a fire occurs, the indicator light on the closed shielding door will start to flash, providing an intuitive visual signal for the staff and clearly showing that the door is in a closed state; this not only ensures that the shielding door can reliably remain closed in an emergency, but also enhances the safety awareness and emergency response efficiency of the personnel, thereby better protecting the internal equipment and maintaining the closed state of the shielding door when a fire occurs.

[0091] Embodiment 3

[0092] Referring toFigures 1-8 For the third embodiment of the present application, which is different from the first two embodiments, the fixed frame 22 is L-shaped in cross section, and the fixed frame 22 is connected to the fixed shell 21; the limiting piece 25 includes a sliding block 251, a trapezoidal block 252 arranged at the bottom of the sliding block 251, a first guide rod 253 arranged at the end surface of the sliding block 251, and a third reset piece 254 arranged at the top of the sliding block 251; the fixed frame 22 further includes a guide rail 221 arranged at the inner side end surface thereof; the guide rail 221 is adapted to the sliding block 251, and the limiting piece 25 is in sliding connection with the guide rail 221; and the end of the third reset piece 254 abuts against the surface of the fixed frame 22.

[0093] In this embodiment, the fixed frame 22 is arranged inside the fixed shell 21, and the fixed shell 21 is a hollow rectangular structure, and the fixed frame 22 is installed on the inner side of the fixed shell 21 by means of bolt connection.

[0094] The horizontal end of the fixed frame 22 is close to the inner side top wall of the fixed shell 21, and the guide rail 221 is arranged at the horizontal end of the fixed frame 22 and extends downward, and the guide rail 221 is a plate-shaped structure with a gap in the middle; the middle position of the sliding block 251 is inside the gap, and the guide plates extending from both sides of the sliding block 251 can abut against the outer wall of the guide rail 221, so that the sliding block 251 can move along a specific track of the guide rail 221.

[0095] The third reset piece 254 is preferably a spring, and a groove is formed in the sliding block 251, and one end of the third reset piece 254 is connected to the inner wall of the groove of the sliding block 251; during the compression and energy storage process, the third reset piece 254 abuts against the inner wall of the groove of the sliding block 251, so that the third reset piece 254 can be effectively prevented from exceeding the range of elastic deformation during the compression process.

[0096] Further, the locking rod 26 includes a ball 261 arranged at one end thereof, and a fixed plate 262 arranged at the other end of the ball 261; the surface of the fixed plate 262 is provided with a first waist hole 2621; the first waist hole 2621 is adapted to the first guide rod 253; and the movement of the locking rod 26 in the horizontal direction can drive the limiting piece 25 to move in the vertical direction.

[0097] In this embodiment, the fixed plate 262 is a plate-shaped structure, the bottom of which is flush with the circumferential outer diameter of the locking rod 26, and the top of the fixed plate 262 protrudes beyond the outer diameter of the locking rod 26; the surface of the fixed plate 262 is provided with an inclined first waist hole 2621, and the first waist hole 2621 is adapted to the first guide rod 253; through the cooperation between the first waist hole 2621 and the first guide rod 253, the first guide rod 253 can be driven to move in the vertical direction during the movement of the locking rod 26 in the horizontal direction, thereby driving the trapezoidal block 252 to move synchronously.

[0098] Specifically, the spherical body 261 is a semicircular structure, and when the locking rod 26 is flipped along with the shielding door, the arc surface of the spherical body 261 can abut against the door frame, so that the spherical body 261 can be extruded after abutting against the door frame, thereby causing the locking rod 26 to shrink inward.

[0099] Further, the disc 241 is arranged inside the fixed shell 21, and the disc 241 penetrates through the fixed shell 21 and extends to the outside of the fixed shell 21. One end of the disc 241 outside the fixed shell 21 is further connected with a handle, so that the disc 241 can be better driven to rotate by the operator through the handle.

[0100] Specifically, the position of the trapezoidal block 252 is staggered with the position of the sidewall of the disc 241. When the disc 241 is rotated, the end of the trapezoidal block 252 always abuts against the outer wall of the disc 241 under the elastic force of the third reset member 254. When the trapezoidal block 252 corresponds to the position of the clamping groove 2411, the third reset member 254 pushes the trapezoidal block 252 to move, so that the trapezoidal block 252 is clamped into the inside of the clamping groove 2411, thereby limiting the rotation member 24, and effectively preventing the rotation member 24 from rotating.

[0101] Further, the locking member 23 comprises a connecting frame 231, a locking column 232 arranged at the end surface of the connecting frame 231, and a fourth reset member 233 arranged inside the connecting frame 231. The sidewall of the connecting frame 231 is provided with a second waist hole 2311. The second waist hole 2311 is matched with the second guide rod 242, and the rotation of the rotation member 24 can drive the locking member 23 to move in the horizontal direction. The locking column 232 penetrates through the sidewall of the fixed shell 21 and extends to the outside of the fixed shell 21.

[0102] In this embodiment, the connecting frame 231 is a "concave" structure, and the sidewalls on both sides of the connecting frame 231 are provided with the second waist hole 2311. The side of the connecting frame 231 close to the inside of the room is connected with the second guide rod 242, and the second waist hole 2311 is inclined at a certain angle. The second guide rod 242 is located at the non-center of the disc 241, and when the disc 241 rotates, the second guide rod 242 can be driven to rotate, and the rotation of the second guide rod 242 can drive the connecting frame 231 to move in the horizontal direction. In turn, the length of the locking column 232 extending out of the shielding door can be controlled by rotating the disc 241.

[0103] Specifically, the fourth reset member 233 is arranged inside the connecting frame 231, and the fourth reset member 233 can push the connecting frame 231 to reset, thereby realizing that the locking column 232 can penetrate through the position corresponding to the locking slot of the shielding door.

[0104] It needs to be explained that the fixed shell 21 is provided with a lock cylinder near the outer side, and the lock cylinder is connected with the same structure as the rotating part 24 inside the fixed shell 21, so that the shielding door can be opened from the outside; only after the key is inserted can the locking part 23 be driven to move from the outside, and then the purpose of contacting and locking the door is achieved.

[0105] Further, the opening and closing unit 3 includes a door frame 31, a shielding door 32 hingedly connected between the door frame 31, and a lock slot 33 provided inside the door frame 31; the lock slot 33 is internally provided with a first lock hole 331 adapted to the locking column 232, and a second lock hole 332 adapted to the ball 261; the fixed shell 21 is installed inside the shielding door 32; the mounting sleeve 11 is provided inside the lock slot 33, and the end of the pressing rod 14 penetrates into the inside of the second lock hole 332.

[0106] In this embodiment, the shielding door 32 is hingedly connected between the door frame 31 through a hinge, so that the shielding door 32 can be turned open; the lock slot 33 is provided inside the door frame 31, and the position of the lock slot 33 corresponds to the positions of the locking column 232 and the locking rod 26, which can ensure that the positions of the locking column 232 and the locking rod 26 completely correspond when the shielding door 32 and the door frame 31 are completely closed.

[0107] The fixed shell 21 is installed inside the shielding door 32 in a bolted manner, and the fixed shell 21 penetrates the door panel of the shielding door 32; the mounting sleeve 11 is provided inside the lock slot 33, and the end of the pressing rod 14 penetrates into the inside of the second lock hole 332, and the indicator 16 provided is installed on the surface of the shielding door 32.

[0108] When the shielding door 32 needs to be opened from the inside during use, the handle connected to the end of the disc 241 can be held, and then the disc 241 is rotated, so that the disc 241 drives the second guide rod 242 to rotate; during the rotation of the second guide rod 242, the outer wall thereof extrudes the inner wall of the second waist hole 2311, so that the locking column 232 moves along the axis direction of the through hole penetrating the inside of the fixed shell 21; the connecting frame 231 gradually compresses the fourth reset member 233 during the movement, so that the fourth reset member 233 is in a compressed energy storage state; when the clamping groove 2411 is rotated to a position corresponding to the trapezoidal block 252, the trapezoidal block 252 is clamped into the inside of the clamping groove 2411 under the rebounding force of the third reset member 254, so that the disc 241 is limited, and the disc 241 is fixed at a proper position; and the position of the locking part 23 connected with the rotating part 24 is fixed, so that the end of the locking column 232 is away from the inside of the first lock hole 331.

[0109] When it is needed to close the shielding door 32, the shielding door 32 is pushed to rotate towards the door frame 31, and during the rotation of the shielding door 32, the spherical body 261 is in abutment with the inner wall of the door frame 31, when the spherical body 261 is extruded by the door frame 31, the locking rod 26 is pushed to move towards the fixed shell 21, and during the movement of the locking rod 26, the first waist hole 2621 extrudes the first guide rod 253, so that the first guide rod 253 moves along the vertical direction, and the first guide rod 253 pushes the trapezoidal block 252 away from the clamping groove 2411, so as to release the limiting of the disc 241; at this time, the fourth reset member 233 is no longer limited, and the elastic potential energy is released to push the locking column 232 to move towards the locking slot 33; so that the end of the locking column 232 is inserted into the first locking hole 331, thereby fixing the position between the shielding door 32 and the door frame 31.

[0110] When the shielding door 32 and the door frame 31 are in the locking state, the trapezoidal block 252 is in abutment with the outer wall of the disc 241, so that the end surface of the spherical body 261 is partially inserted into the second locking hole 332, and when the end of the spherical body 261 is inserted into the second locking hole 332, the end of the spherical body 261 is in abutment with the end surface of the pressing rod 14, so as to push the pressing rod 14 to move along the axis direction of the through hole, thereby realizing that the control indicator 16 can be turned on when the shielding door 32 is in the closed state.

[0111] In summary, the device only needs to push the shielding door 32 towards the door frame 31, and then the end of the spherical body 261 is in abutment with the inner wall of the door frame 31, so as to release the limiting of the rotating member 24, and then the fourth reset member 233 pushes the locking column 232 to reset, so that the locking column 232 is inserted into the first locking hole 331, thereby realizing the locking between the shielding door 32 and the door frame 31.

[0112] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A fireproof electromagnetic shielding door with an observation window, characterized in that: include, The control unit (1) includes a mounting sleeve (11), a support frame (12) disposed inside the mounting sleeve (11), a deformable member (13) disposed inside the support frame (12), a pressure rod (14) passing through the side wall of the mounting sleeve (11), a pressure control switch (15) disposed inside the mounting sleeve (11), and an indicator (16) connected to the pressure control switch (15). The locking unit (2) includes a fixed shell (21), a fixed frame (22) disposed inside the fixed shell (21), a locking member (23) passing through the side wall of the fixed shell (21), a rotating member (24) linked with the locking member (23), a limiting member (25) disposed outside the circumference of the rotating member (24), and a locking rod (26) linked with the limiting member (25). The locking rod (26) penetrates the side wall of the fixed shell (21), and its end can abut against the pressure rod (14); The pressure bar (14) includes a groove (141) formed in its side wall. The deformable component (13) includes an elastic card (131), a support plate (132) disposed at the bottom of the elastic card (131), an expansion block (133) disposed at the opening of the elastic card (131), a positioning sleeve (134) disposed on the outside of the expansion block (133), a push rod (135) disposed at the end of the positioning sleeve (134), and a second reset component (136) disposed on the side wall of the support plate (132). The support frame (12) includes a guide post (121) disposed on one side and a groove (122) formed on the surface of the support frame (12). The slide (122) is adapted to the support plate (132), and the second reset member (136) is disposed on the outside of the guide post (121). The guide post (121) passes through the support plate (132) and extends to its outside. The elastic card (131) has a dovetail-shaped structure, and the open end of the elastic card (131) extends to both sides with an extension plate D; When heated, the expansion block (133) pushes the free end of the elastic card (131) to open. The elastic card (131) has a U-shaped structure. The surface of the extension plate D of the elastic card (131) corresponds to the end face of the pressure bar (14); The end of the pressure rod (14) can abut against the surface of the extension plate D of the elastic card (131), and the movement of the pressure rod (14) can drive the elastic card (131) to move synchronously; The push rod (135) moves synchronously with the elastic card (131), thereby making the push rod (135) come into contact with the pressure control switch (15).

2. The high-shielding fireproof electromagnetic shielding door with an observation window as described in claim 1, characterized in that: The mounting sleeve (11) includes a through hole provided on its side wall, and a stop bar is provided inside the through hole; The pressure rod (14) also includes a first reset member (142) disposed on the inner wall of the groove (141). The stop bar is adapted to the groove (141), and one end of the first reset member (142) abuts against the inner wall of the groove (141), and the other end abuts against the stop bar.

3. The high-shielding fireproof electromagnetic shielding door with an observation window as described in claim 2, characterized in that: The end face of the extension plate D of the elastic card (131) is flush with the inner wall of the groove (141); The pressure rod (14) moves along the axis of the through hole, thereby making the end face of the extension plate D of the elastic card (131) abut against the inner wall of the groove (141).

4. The high-shielding fireproof electromagnetic shielding door with an observation window as described in any one of claims 1 to 3, characterized in that: The fixing frame (22) has an L-shaped cross-section and is connected to the fixing shell (21); The limiting member (25) includes a slider (251), a trapezoidal block (252) disposed at the bottom of the slider (251), a first guide rod (253) disposed at the end face of the slider (251), and a third reset member (254) disposed at the top of the slider (251). The fixing frame (22) also includes a guide rail (221) with its inner end face. The guide rail (221) is adapted to the slider (251), and the limiting member (25) is slidably connected to the guide rail (221); The end of the third reset member (254) abuts against the surface of the fixing frame (22).

5. The high-shielding fireproof electromagnetic shielding door with an observation window as described in claim 4, characterized in that: The locking rod (26) includes a ball (261) disposed at one end thereof, and a fixing plate (262) disposed at the other end of the ball (261). The surface of the fixing plate (262) is provided with a first waist hole (2621); The first waist hole (2621) is adapted to the first guide rod (253); The locking rod (26) can move horizontally to drive the limiting member (25) to move vertically.

6. The high-shielding fireproof electromagnetic shielding door with an observation window as described in claim 5, characterized in that: The rotating component (24) includes a disk (241) and a second guide rod (242) disposed on the end face of the disk (241). The side wall of the disk (241) is provided with a slot (2411). The slot (2411) is adapted to the trapezoidal block (252), and the trapezoidal block (252) can be inserted into the slot (2411) to limit the rotation of the rotating part (24).

7. The high-shielding fireproof electromagnetic shielding door with an observation window as described in claim 6, characterized in that: The locking member (23) includes a connecting frame (231), a locking post (232) disposed on the end face of the connecting frame (231), and a fourth reset member (233) disposed on the inner side of the connecting frame (231). The connecting frame (231) has a second waist hole (2311) on its side wall; The second waist hole (2311) is adapted to the second guide rod (242), and the rotation of the rotating member (24) can drive the locking member (23) to move in the horizontal direction; The locking pin (232) penetrates the side wall of the fixed shell (21) and extends to its outer side.

8. The high-shielding fireproof electromagnetic shielding door with an observation window as described in claim 7, characterized in that: It also includes, The opening and closing unit (3) includes a door frame (31), a shielding door (32) hinged to the door frame (31), and a lock groove (33) disposed on the inner side of the door frame (31). The lock groove (33) has a first lock hole (331) adapted to the locking pin (232) and a second lock hole (332) adapted to the ball (261). The fixed shell (21) is installed inside the shielding door (32); The mounting sleeve (11) is disposed inside the lock groove (33), and the end of the pressure rod (14) extends through to the inside of the second lock hole (332).

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