A shielding cabinet with front and rear doors
By introducing buffering and sealing mechanisms into the shielded cabinet, the vibration problem when the door is closed is solved, and the electromagnetic shielding effect and equipment stability are improved, enabling convenient operation and safe operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING YUNHANG TECH CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
When existing shielded cabinets are closed, the door impacts the cabinet, causing vibration that affects the stability and lifespan of the equipment. Furthermore, the rubber strip sealing structure is prone to wear and tear over long-term use, leading to a decrease in electromagnetic shielding effectiveness.
The design incorporates a buffer and sealing mechanism, including a slide bar, buffer block, buffer pad, and buffer ball, along with a spring structure to reduce vibration when closing the door. A metal spring sealing structure replaces the rubber strip to enhance sealing performance. Additionally, a heat dissipation mechanism and a shielding mechanism are included to ensure stable operation of the equipment and effective shielding of electromagnetic signals.
It effectively reduces vibration when closing the door, extends the service life of the equipment, improves the electromagnetic shielding effect and the stability of the equipment, enhances the sealing and heat dissipation capacity of the cabinet, and improves the convenience and safety of equipment operation.
Smart Images
Figure CN224538626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shielded cabinet technology, and in particular to a shielded cabinet with front and rear doors. Background Technology
[0002] A shielded cabinet is a device used to prevent electromagnetic interference and radio frequency interference. It can effectively block external electromagnetic signals from entering the cabinet and prevent electromagnetic signals generated by electronic equipment inside the cabinet from leaking into the external environment, thereby ensuring the stable and reliable operation of internal electronic equipment and protecting the security and confidentiality of equipment data.
[0003] Shielded cabinets with front and rear doors are based on ordinary shielded cabinets. To facilitate the installation, commissioning, maintenance, and cabling of equipment, doors are installed on both the front and rear sides of the cabinet. This design allows operators to access the internal equipment from both the front and rear, improving the convenience and flexibility of operation, optimizing the user experience, and increasing work efficiency.
[0004] Existing shielded cabinets use rubber strips for sealing the front and rear doors with the cabinet body. After repeated opening and closing, the rubber strips wear and age, leading to poor sealing and affecting the electromagnetic shielding effect. To solve this problem, existing technology replaces the rubber strips with a metal spring sealing structure. Because metal springs have good elasticity and corrosion resistance, they can maintain good elasticity during long-term opening and closing, ensuring tight contact and improving shielding performance. However, in actual use, when the existing shielded cabinet doors are closed, the doors will impact the cabinet body at a certain speed, generating vibration. Under long-term use, this can cause the components of the equipment inside the cabinet to loosen, leading to equipment failure and affecting the stability and service life of the equipment. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a shielded cabinet with front and rear doors, which aims to improve the problem that the door will impact the cabinet body and cause vibration when the shielded cabinet is closed in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a shielded cabinet with front and rear doors, comprising a shielded cabinet, wherein two mounting columns are fixedly connected to the front and rear sides of the inner wall of the shielded cabinet, protective mechanisms are provided on the left and right sides of the shielded cabinet, a shielding mechanism is provided on the left side of the interior of the shielded cabinet, a heat dissipation mechanism is provided on the bottom side of the interior of the shielded cabinet, multiple mounting slots are equidistantly provided on the inner sides of the multiple mounting columns, and corresponding equipment trays are slidably connected to the inner walls of the multiple mounting slots, sealing mechanisms are provided on the left and right sides of the protective mechanism, and a disassembly and assembly mechanism is provided inside the shielded cabinet;
[0007] The protective mechanism includes two shielding doors, the rear sides of which are rotatably connected to the left and right rear ends of the shielding cabinet. Fixed plates are fixedly connected to the left and right ends of the bottom inner side of the shielding cabinet. Fixed blocks are fixedly connected to the left and right sides of each of the two fixed plates. Multiple sliding rods are equidistantly connected to the inner walls of each of the two fixed blocks. Springs are equidistantly connected to the outer walls of each of the multiple sliding rods. Two buffer blocks are provided on the opposite sides of each of the two fixed plates. Buffer pads are fixedly connected to the outer sides of each of the multiple buffer blocks. Multiple buffer balls are fixedly connected to the outer sides of each of the multiple buffer pads at equal intervals.
[0008] As a further description of the above technical solution:
[0009] The disassembly and assembly mechanism includes multiple positioning blocks. The tops of the multiple positioning blocks are respectively fixedly connected to the front and rear ends of the top right side of the corresponding equipment tray. Each of the multiple positioning blocks has a locking groove on its right side. The inner walls of the multiple locking grooves are locked with locking balls. The outer walls of the multiple positioning blocks are slidably connected with fixing blocks II. The bottoms of the multiple fixing blocks II are respectively fixedly connected to the inner bottom of the corresponding mounting groove. The right sides of the multiple locking balls are fixedly connected with springs II. The outer walls of the multiple springs II are slidably connected to the inner walls of the corresponding fixing blocks II. Each of the multiple fixing blocks II has an unlocking component inside.
[0010] As a further description of the above technical solution:
[0011] The sealing mechanism includes two combination locks, one side of each combination lock is fixedly connected to the other side of the corresponding shielding door. The upper and lower ends of the opposite sides of the two shielding doors are fixedly connected to fixing blocks three. The inner walls of multiple fixing blocks three are slidably connected to corresponding sliding columns. The opposite sides of the two shielding doors are rotatably connected to rotating handles one. The front ends of the left and right sides of the shielding cabinet are fixedly connected to two locking blocks. The upper and lower ends of the front sides of the two sliding columns are fixedly connected to locking columns. The outer walls of multiple locking columns are slidably connected to the inner walls of the corresponding locking blocks.
[0012] As a further description of the above technical solution:
[0013] The heat dissipation mechanism includes a cabinet air inlet, the outer wall of which is fixedly connected to the inner wall of the corresponding shielding door. A rack-mounted air inlet is opened at the bottom front side of the mounting column on the right front side. A fan exhaust port is fixedly connected to the top inner side of the shielding cabinet. A rack-mounted air return port is fixedly connected to the bottom inner side of the shielding cabinet. Multiple heat dissipation plates are fixedly connected at equal intervals to the top of the multiple equipment trays.
[0014] As a further description of the above technical solution:
[0015] The shielding mechanism includes a cabinet power filter. The outer wall of the cabinet power filter is fixedly connected to the inner wall of the left-side shielding door. A network cable waveguide is installed at the bottom of the cabinet power filter, and an optical fiber waveguide is installed at the bottom of the network cable waveguide. The outer walls of both the network cable waveguide and the optical fiber waveguide are connected to the left-side shielding door. A communication interface is provided on the top right side of the shielding cabinet, and a temperature and humidity leakage magnetic field alarm display screen is fixedly connected to the top right side of the shielding cabinet.
[0016] As a further description of the above technical solution:
[0017] The unlocking assembly includes multiple unlocking levers. The left ends of the multiple unlocking levers are fixedly connected to the right side of the corresponding locking ball. The outer walls of the multiple unlocking levers are slidably connected to the inner walls of the corresponding springs. Rotating locking blocks are fixedly connected to the front and rear ends of the right side of the outer walls of the multiple unlocking levers. Rotating handles are rotatably connected to the right ends of the multiple unlocking levers. Locking grooves are provided on the right sides of the multiple fixed blocks. The inner walls of the multiple locking grooves are slidably connected to the outer walls of the corresponding rotating locking blocks.
[0018] As a further description of the above technical solution:
[0019] The shielding cabinet is fixedly connected to sealing grooves on both the left and right sides, and sealing rings are fixedly connected to adjacent sides of the two shielding doors. The outer walls of the two sealing rings are respectively fitted to the inner walls of the corresponding sealing grooves.
[0020] As a further description of the above technical solution:
[0021] Multiple limiting blocks are equidistantly arranged on the inner side of each of the multiple fixed blocks. One side of each of the multiple limiting blocks is fixedly connected to the other end of the corresponding slide rod, and one side of each of the multiple limiting blocks is abutted against the other side of the corresponding fixed block.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, when operating the cabinet equipment, the front and rear shielding doors are opened to achieve opening and closing. When closing, the sliding rod of the protective mechanism slides and compresses the spring, driving the buffer block to rotate, so that the buffer pad and small ball are in contact with the door body, buffering the impact force, reducing vibration, and protecting the equipment. The equipment is mounted on the tray. The sealing mechanism locks the driven component by rotating the handle and is protected by a combination lock. The heat dissipation mechanism circulates air to assist in heat dissipation. The shielding mechanism prevents electromagnetic leakage, making the equipment easy to operate, avoiding the need to pull out the equipment wiring, and ensuring the stable operation of the equipment.
[0024] 2. In this utility model, when installing the equipment tray, it is placed into the corresponding installation slot, the positioning block slides into the fixing block, and the locking ball is locked into the locking slot by the spring. First, operate the rotating handle to pull out the unlocking lever, so that the rotating locking block is released from the locking slot. Then, rotate the handle, and the locking ball, under the spring restoring force, drives the rotating locking block to adhere to the right side of the fixing block, thus completing the unlocking. This facilitates equipment maintenance and replacement, and the position of the tray in the installation slot can be adjusted according to the size of the equipment to achieve reasonable space utilization. Attached Figure Description
[0025] Figure 1 A perspective view of a shielded cabinet with front and rear doors proposed in this utility model;
[0026] Figure 2 This is a front view of a shielded cabinet with front and rear doors proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of a shielded cabinet with front and rear doors proposed in this utility model;
[0028] Figure 4 This is a cross-sectional view of a shielded cabinet with front and rear doors proposed in this utility model.
[0029] Figure 5 This is a structural breakdown diagram of the disassembly and assembly mechanism of a shielded cabinet with front and rear doors proposed in this utility model.
[0030] Figure 6 This is a structural breakdown diagram of the protective mechanism of a shielded cabinet with front and rear doors proposed in this utility model.
[0031] Legend:
[0032] 1. Shielding cabinet; 2. Protective mechanism; 201. Fixing plate; 202. Fixing block one; 203. Sliding rod; 204. Spring one; 205. Buffer block; 206. Buffer pad; 207. Buffer ball; 208. Shielding door; 3. Assembly / disassembly mechanism; 301. Positioning block; 302. Engaging groove; 303. Engaging ball; 304. Spring two; 305. Fixing block two; 306. Unlocking assembly; 3061. Unlocking lever; 3062. Rotating engaging block; 3063. Rotating handle; 3064. Locking groove; 4. Mounting column; 5. Mounting groove; 6. Equipment tray; 7. Sealing Mechanism; 701, Combination lock; 702, Fixing block three; 703, Sliding column; 704, Rotating handle one; 705, Locking block; 706, Locking column; 8, Heat dissipation mechanism; 801, Cabinet air inlet; 802, Rack-mounted air conditioner air inlet; 803, Fan exhaust outlet; 804, Rack-mounted air conditioner return air outlet; 805, Heat sink; 9, Shielding mechanism; 901, Cabinet power filter; 902, Network cable waveguide; 903, Fiber optic waveguide; 904, Communication interface; 905, Temperature and humidity leakage magnetic field alarm display screen; 10, Sealing groove; 11, Sealing ring; 12, Limit block. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figure 1 , Figure 4 and Figure 6This utility model provides an embodiment of a shielded cabinet with front and rear doors, comprising a shielded cabinet 1, which serves as the main body of the entire cabinet, providing support and installation space for various components and internal equipment. Two mounting posts 4 are fixedly connected to the front and rear sides of the inner wall of the shielded cabinet 1 for mounting equipment trays 6, providing fixed positions for the equipment. Protective mechanisms 2 are provided on both the left and right sides of the shielded cabinet 1, which can protect the door and provide shock absorption when opening and closing, protecting the internal equipment. A shielding mechanism 9 is provided on the left side inside the shielded cabinet 1, which can effectively prevent electromagnetic leakage and protect the internal equipment from electromagnetic interference. A heat dissipation mechanism 8 is provided on the bottom side inside the shielded cabinet 1, which can effectively... The internal air circulation of the cabinet is used to dissipate heat and cool the equipment, ensuring its normal operation. Multiple mounting slots 5 are equally spaced on the inner side of the mounting columns 4, which cooperate with the equipment trays 6 to facilitate the installation and position adjustment of the equipment trays 6, meeting the needs of different equipment layouts. The inner walls of the multiple mounting slots 5 are slidably connected to the corresponding equipment trays 6 for supporting the equipment. They can be flexibly pulled out and inserted, facilitating the maintenance and replacement of the equipment. Sealing mechanisms 7 are set on both the left and right sides of the protective mechanism 2 to enhance the sealing of the shielded cabinet and prevent electromagnetic leakage. The internal disassembly and assembly mechanism 3 of the shielded cabinet 1 is set to facilitate the installation and disassembly of the equipment trays 6, improving the efficiency of equipment installation and maintenance.
[0035] The protective mechanism 2 includes two shielded doors 208, serving as the entrance and exit of the cabinet to facilitate operation of the internal equipment. The rear sides of both shielded doors 208 are rotatably connected to the left and right rear ends of the shielded cabinet 1, enabling the opening and closing of the shielded doors 208. Fixing plates 201 are fixedly connected to the left and right ends of the bottom inner side of the shielded cabinet 1, providing an installation base for fixing blocks 202. Fixing blocks 202 are fixedly connected to the left and right sides of both fixing plates 201, used to install sliding rods 203 and springs 204, providing support for the buffer mechanism. Multiple sliding rods 203 are equidistantly slidably connected to the inner walls of both fixing blocks 202, compressing the springs 204 when the doors are closed, providing a buffering effect. Springs 204 are slidably connected to the outer walls of the multiple sliding rods 203. 204. By absorbing the impact force when the door closes through elastic deformation, the vibration transmission is reduced. Two buffer blocks 205 are provided on the opposite side of the two fixed plates 201. They rotate under the action of the slide rod 203 and the spring 204 to adjust the angle to better fit the closing trajectory of the door and enhance the buffering effect. One side of the multiple buffer blocks 205 is rotatably connected to the other side of the corresponding slide rod 203 to realize the angle adjustment of the buffer blocks 205 to adapt to different closing states. Buffer pads 206 are fixedly connected to the outside of the multiple buffer blocks 205, which directly contact the door to buffer the impact force and protect the door and internal equipment. Multiple buffer balls 207 are fixedly connected at equal intervals to the outside of the multiple buffer pads 206 to further enhance the buffering effect and disperse the impact force.
[0036] The sealing mechanism 7 includes two combination locks 701, providing security for the shielded cabinet and restricting unauthorized personnel from entering. One side of each combination lock 701 is fixedly connected to the other side of the corresponding shielding door 208, facilitating operation and ensuring security. Fixed blocks 702 are fixedly connected to the upper and lower ends of the opposite sides of the two shielding doors 208, used to install sliding posts 703, assisting in the locking function of the door locks. The inner walls of multiple fixed blocks 702 are slidably connected to corresponding sliding posts 703, which move under the action of the rotating handle 704 to achieve locking and unlocking operations. Each of the opposite sides of the shielding door 208 is rotatably connected to a rotating handle 704, which facilitates the operator to control the movement of the sliding column 703 to lock and unlock the door. The front ends of the left and right sides of the shielding cabinet 1 are each fixedly connected to two locking blocks 705, which cooperate with the locking column 706 to lock the shielding door 208. The upper and lower ends of the front sides of the two sliding columns 703 are each fixedly connected to a locking column 706. Inserting the locking block 705 will securely lock the shielding door 208. The outer walls of the multiple locking columns 706 are slidably connected to the inner walls of the corresponding locking blocks 705 to ensure smooth locking and unlocking operations.
[0037] The heat dissipation mechanism 8 includes a cabinet air inlet 801 for drawing in cold air and providing a source of cooling air for the cabinet. The outer wall of the cabinet air inlet 801 is fixedly connected to the inner wall of the corresponding shielding door 208 to facilitate the entry of cold air into the cabinet. A rack-mounted air inlet 802 is opened at the bottom front side of the right front mounting column 4 to receive the cold air from the rack-mounted air conditioner and enhance the heat dissipation effect. A fan exhaust vent 803 is fixedly connected to the top inner side of the shielding cabinet 1 to exhaust the hot air inside the cabinet and promote air circulation. A rack-mounted air conditioner return vent 804 is fixedly connected to the bottom inner side of the shielding cabinet 1 to form air circulation and improve the air conditioning cooling efficiency. Multiple heat dissipation plates 805 are fixedly connected at equal intervals on the top of multiple equipment trays 6 to increase the contact area between the equipment and the air and assist in the heat dissipation of the equipment.
[0038] The shielding mechanism 9 includes a cabinet power filter 901, which filters electromagnetic interference in the power supply to ensure the purity of the equipment power supply. The outer wall of the cabinet power filter 901 is fixedly connected to the inner wall of the left shielding door 208 for easy installation and shielding of the power lines. A network cable waveguide 902 is set at the bottom of the cabinet power filter 901 to prevent electromagnetic leakage during network cable transmission and ensure the stability of the network signal. A fiber optic waveguide 903 is set at the bottom of the network cable waveguide 902 to prevent electromagnetic leakage during fiber optic signal transmission and ensure the reliability of fiber optic communication. The outer walls of both the network cable waveguide 902 and the fiber optic waveguide 903 are connected to the left shielding door 208 to ensure that the waveguides are installed firmly and effectively shielded. A communication interface 904 is opened on the top right side of the shielding cabinet 1 to facilitate communication between the equipment and the outside. A temperature and humidity leakage magnetic field alarm display screen 905 is fixedly connected to the top right side of the shielding cabinet 1 to display the humidity, temperature and whether there is magnetic leakage inside the cabinet in real time so as to detect abnormalities in time.
[0039] Specifically, the shielding cabinet 1, equipped with mounting posts 4 and mounting slots 5, enables convenient installation and flexible position adjustment of the equipment tray 6, meeting various equipment layout requirements. The shielding door 208 of the protective mechanism 2 is connected via a rear-side rotating connection for easy operation. When closing the door, the sliding rod 203, spring 204, buffer block 205, buffer pad 206, and buffer ball 207 work together to effectively buffer impact, reduce vibration transmission, protect internal equipment, and extend equipment lifespan. The combination lock 701 ensures cabinet security and restricts unauthorized personnel from entering. Rotating the lever 704 drives the sliding post 708. 03 and locking post 706 work together with card block 705 to reliably lock shielding door 208, enhance cabinet sealing, and prevent electromagnetic leakage. Heat dissipation mechanism 8 constructs an air circulation heat dissipation system to create a suitable operating temperature environment for the equipment and ensure stable operation. In shielding mechanism 9, cabinet power filter 901 filters power electromagnetic interference. Network cable waveguide 902 and fiber optic waveguide 903 prevent electromagnetic leakage during signal transmission. Communication interface 904 facilitates external communication of the equipment. Temperature, humidity and magnetic flux leakage alarm display screen 905 provides real-time feedback on environmental and electromagnetic conditions, providing comprehensive protection for equipment operation.
[0040] Reference Figure 4 and Figure 5The disassembly and assembly mechanism 3 includes multiple positioning blocks 301. These positioning blocks 301 are used to determine the position of the equipment tray 6 in the mounting groove 5, achieving precise positioning. The tops of the multiple positioning blocks 301 are respectively fixedly connected to the front and rear ends of the top right side of the corresponding equipment tray 6, providing an installation position for the positioning blocks 301 and ensuring a tight connection with the equipment tray 6. Each of the multiple positioning blocks 301 has a locking groove 302 on its right side, which is used to cooperate with the locking ball 303 to fix the equipment tray 6. The inner walls of the multiple locking grooves 302 are all locked with locking balls 303. Under the action of spring 304, the locking balls 303 are locked into the locking grooves 302, keeping the equipment tray 6 stable. The outer walls of the multiple positioning blocks 301 are slidably connected with fixing blocks 305. Fixing blocks 305 provide a sliding track for the positioning blocks 301 and are also connected to the mounting groove 5 to realize the installation of the equipment tray 6. The connection between the tray 6 and the mounting groove 5 is achieved by fixing the bottom of multiple fixing blocks 305 to the bottom of the corresponding mounting groove 5, thus securing the fixing blocks 305 within the mounting groove 5 and ensuring the stability of the entire structure. Multiple engaging balls 303 are each fixedly connected to the right side with a spring 304, which provides elasticity, ensuring the engaging balls 303 remain engaged in the engaging groove 302, enhancing the fixing effect of the equipment tray 6. The outer walls of the multiple springs 304 are slidably connected to the inner walls of the corresponding fixing blocks 305, ensuring the springs 304 can freely extend and retract within the fixing blocks 305, while also providing a certain degree of limitation. Each fixing block 305 contains an unlocking component 306, which is used to release the engaging state of the engaging balls 303 and the engaging groove 302, thereby unlocking the equipment tray 6.
[0041] The unlocking assembly 306 includes multiple unlocking levers 3061. Each unlocking lever 3061 is used to pull the engaging ball 303, disengaging it from the engaging groove 302. The left ends of the multiple unlocking levers 3061 are fixedly connected to the right sides of their respective engaging balls 303, ensuring effective pulling of the engaging balls 303. The outer walls of the multiple unlocking levers 3061 are slidably connected to the inner walls of their respective springs 304. When the unlocking lever 3061 is pulled, the springs 304 are compressed, storing energy. The front and rear ends of the right sides of the outer walls of the multiple unlocking levers 3061 are fixedly connected. A rotating locking block 3062 is fixedly connected to the unlocking lever 3061. The rotating locking block 3062 cooperates with the locking groove 3064 to realize the locking and unlocking of the unlocking lever 3061. The right end of the multiple unlocking levers 3061 is rotatably connected to a rotating handle 3063, which allows the operator to operate the unlocking lever 3061 by rotating the rotating handle 3063. The right side of the multiple fixed blocks 305 is provided with a locking groove 3064. When the rotating handle 3063 is rotated, the rotating locking block 3062 can slide in the locking groove 3064 to realize the unlocking and locking functions.
[0042] Specifically, the positioning block 301 is connected to the equipment tray 6. Through the cooperation of the locking groove 302 and the locking ball 303, the equipment tray 6 is stably installed in the mounting groove 5, ensuring the stability of equipment operation. The second spring 304 provides continuous elastic force to the locking ball 303, making the fixation more reliable. Rotating the rotating handle 3063 drives the unlocking lever 3061 and the locking block 3062 to slide in the locking groove 3064, easily releasing the locking ball 303 and the locking groove 302, realizing the quick unlocking of the equipment tray 6. This greatly improves the efficiency of equipment maintenance and replacement, bringing convenience to users.
[0043] Reference Figure 2 , Figure 3 and Figure 6 Sealing grooves 10 are fixedly connected to both the left and right sides of the shielding cabinet 1. These grooves 10 cooperate with sealing rings 11 to enhance the sealing performance at the connection between the shielding cabinet 1 and the shielding door 208, preventing electromagnetic leakage. Sealing rings 11 are fixedly connected to adjacent sides of both shielding doors 208. When the shielding door 208 is closed, the sealing rings 11 tightly adhere to the inner wall of the sealing groove 10, further improving the shielding effect and ensuring a stable internal electromagnetic environment. The outer walls of the two sealing rings 11 respectively adhere to the inner walls of their corresponding sealing grooves 10. This adhesion method forms a sealing structure, effectively blocking electromagnetic signals from leaking from the gap between the shielding cabinet 1 and the shielding door 208. Multiple fixing blocks... Multiple limiting blocks 12 are evenly spaced on the inner side of the slide bar 203. The limiting blocks 12 are used to limit the movement range of the slide bar 203, ensuring that the slide bar 203 slides within the specified stroke, thus ensuring the stability and reliability of the buffer mechanism. One side of each of the multiple limiting blocks 12 is fixedly connected to the other end of the corresponding slide bar 203, so that the limiting blocks 12 can move with the slide bar 203 and limit the slide bar 203. One side of each of the multiple limiting blocks 12 is in contact with the other side of the corresponding fixed block 202. During the sliding process of the slide bar 203, the limiting blocks 12 are in contact with the fixed block 202 to prevent the slide bar 203 from sliding excessively and to avoid failure of the buffer mechanism.
[0044] Specifically, the sealing groove 10 and the sealing ring 11 work together to form a tight sealing structure, which greatly enhances the sealing performance at the connection between the shielding cabinet 1 and the shielding door 208, effectively prevents electromagnetic leakage, and ensures the stability of the internal electromagnetic environment. The limiting block 12 plays a precise limiting role on the slide rod 203, preventing it from sliding excessively and ensuring the stable and reliable operation of the buffer mechanism.
[0045] Working principle: When it is necessary to operate the equipment inside the cabinet, open the front and rear shielding doors 208. The shielding doors 208 are rotatably connected to the shielding cabinet 1 at the rear to achieve opening and closing. When closing the shielding doors 208, the protective mechanism 2 plays a shock absorption and buffering role. The sliding rod 203 slides in the fixed block 202, compressing the spring 204. The buffer block 205 rotates under the drive of the sliding rod 203, adjusting the angle so that the buffer pad 206 and the buffer ball 207 on it can better fit the closing trajectory of the door, effectively buffering the impact force when the door closes, reducing vibration transmission, protecting the internal equipment solder joints from loosening, and ensuring stable operation and service life of the equipment. The equipment is installed on the equipment tray 6. The sealing mechanism 7 ensures the airtightness of the shielding cabinet. Rotate the rotating handle 704, which drives the sliding column 703 to slide in the fixed block 702, so that the locking column 706 engages with the locking plate. Block 705 works in conjunction with the locking mechanism, while the combination lock 701 provides security. The cabinet air inlet 801 and the rack-mounted air conditioner air inlet 802 draw in cold air, the fan exhaust vent 803 exhausts hot air, and the rack-mounted air conditioner return vent 804 recycles the air. The heat sink 805 assists in heat dissipation, ensuring a normal operating environment for the equipment. The cabinet power filter 901, network cable waveguide 902, fiber optic waveguide 903, and communication interface 904 work together to prevent electromagnetic leakage. The temperature, humidity, and magnetic flux leakage alarm display screen 905 provides real-time feedback on the environment and electromagnetic conditions inside the cabinet, ensuring stable operation of the equipment in a favorable electromagnetic environment. By adopting a shielded cabinet with front and rear doors, the requirements for operating a large number of devices inside the cabinet are met, ensuring convenient operation of the equipment inside the cabinet and avoiding the need to drag the equipment out every time it is connected, thus increasing convenience.
[0046] Furthermore, when installing the equipment tray 6, it is placed in the corresponding mounting slot 5, allowing the positioning block 301 to slide into the fixing block 305. At this time, the engaging ball 303, under the action of the spring 304, engages into the engaging groove 302 on the positioning block 301, achieving initial fixation of the equipment tray 6 and preventing it from sliding freely. When it is necessary to unlock the equipment tray 6, first operate the rotating handle 3063 on one side, driving the unlocking lever 3061 to pull out to the right. At this time, the rotating engaging block 3062 slides out from the inner wall of the locking groove 3064, releasing the locking restriction on the engaging ball 303. After the locking lever 3061 is pulled to a certain position, the rotating handle 3063 is rotated again. At this time, under the restoring force of the second spring 304, the locking ball 303 drives the rotating locking block 3062 to fit against the right side of the second fixing block 305 and fix it to the right side of the second fixing block 305, completing the unlocking operation. This allows the equipment tray 6 to be removed for equipment maintenance and replacement, improving the convenience and efficiency of disassembly and assembly of the equipment tray 6. The position of the equipment tray 6 in the mounting slot 5 can be flexibly adjusted according to the volume of the equipment to be installed, realizing reasonable use of space and improving the adaptability of the cabinet space.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A shielded cabinet with front and rear doors, comprising a shielded cabinet (1), characterized in that: The shielding cabinet (1) has two mounting columns (4) fixedly connected to the front and rear sides of its inner wall. The shielding cabinet (1) is provided with protective mechanisms (2) on both the left and right sides. The shielding cabinet (1) is provided with a shielding mechanism (9) on the left side inside. The shielding cabinet (1) is provided with a heat dissipation mechanism (8) on the bottom side inside. Multiple mounting slots (5) are provided at equal intervals on the inner sides of the multiple mounting columns (4). The inner walls of the multiple mounting slots (5) are respectively slidably connected with corresponding equipment trays (6). The protective mechanism (2) is provided with a sealing mechanism (7) on both the left and right sides. The shielding cabinet (1) is provided with a disassembly and assembly mechanism (3) inside. The protective mechanism (2) includes two shielding doors (208). The rear sides of the two shielding doors (208) are rotatably connected to the left and right rear ends of the shielding cabinet (1). The bottom left and right ends of the inner side of the shielding cabinet (1) are fixedly connected to fixed plates (201). The left and right sides of the two fixed plates (201) are fixedly connected to fixed blocks (202). The inner walls of the two fixed blocks (202) are equidistantly connected to multiple sliding rods (203). The outer walls of the multiple sliding rods (203) are equidistantly connected to springs (204). The two fixed plates (201) are provided with two buffer blocks (205) on the opposite side. The outer sides of the multiple buffer blocks (205) are fixedly connected to buffer pads (206). The outer sides of the multiple buffer pads (206) are fixedly connected to multiple buffer balls (207) at equal intervals.
2. A shielded cabinet with front and rear doors according to claim 1, characterized in that: The disassembly and assembly mechanism (3) includes multiple positioning blocks (301). The tops of the multiple positioning blocks (301) are respectively fixedly connected to the front and rear ends of the top right side of the corresponding equipment tray (6). The right side of each of the multiple positioning blocks (301) is provided with a locking groove (302). The inner wall of each of the multiple locking grooves (302) is locked with a locking ball (303). The outer wall of each of the multiple positioning blocks (301) is slidably connected with a fixing block two (305). The bottom of each of the multiple fixing blocks two (305) is respectively fixedly connected to the inner bottom of the corresponding mounting groove (5). The right side of each of the multiple locking balls (303) is fixedly connected with a spring two (304). The outer wall of each of the multiple spring two (304) is slidably connected to the inner wall of the corresponding fixing block two (305). The interior of each of the multiple fixing blocks two (305) is provided with an unlocking component (306).
3. A shielded cabinet with front and rear doors according to claim 1, characterized in that: The sealing mechanism (7) includes two combination locks (701). One side of each combination lock (701) is fixedly connected to the other side of the corresponding shielding door (208). The upper and lower ends of the two shielding doors (208) are fixedly connected to the opposite sides. The inner walls of the multiple fixed blocks (702) are slidably connected to the corresponding sliding columns (703). The opposite sides of the two shielding doors (208) are rotatably connected to the rotating handle (704). The front ends of the left and right sides of the shielding cabinet (1) are fixedly connected to two locking blocks (705). The upper and lower ends of the front sides of the two sliding columns (703) are fixedly connected to locking columns (706). The outer walls of the multiple locking columns (706) are slidably connected to the inner walls of the corresponding locking blocks (705).
4. A shielded cabinet with front and rear doors as described in claim 1, characterized in that: The heat dissipation mechanism (8) includes a cabinet air inlet (801), the outer wall of which is fixedly connected to the inner wall of the corresponding shielding door (208), a rack-type air conditioner air inlet (802) is opened at the bottom front side of the mounting column (4) on the right front end, a fan exhaust port (803) is fixedly connected to the top inner side of the shielding cabinet (1), a rack-type air conditioner return air inlet (804) is fixedly connected to the bottom inner side of the shielding cabinet (1), and multiple heat dissipation plates (805) are fixedly connected at equal intervals on the top of the multiple equipment trays (6).
5. A shielded cabinet with front and rear doors according to claim 1, characterized in that: The shielding mechanism (9) includes a cabinet power filter (901). The outer wall of the cabinet power filter (901) is fixedly connected to the inner wall of the shielding door (208) on the left side. A network cable waveguide (902) is provided at the bottom of the cabinet power filter (901). An optical fiber waveguide (903) is provided at the bottom of the network cable waveguide (902). The outer walls of the network cable waveguide (902) and the optical fiber waveguide (903) are both connected to the shielding door (208) on the left side. A communication interface (904) is provided on the top right side of the shielding cabinet (1). A temperature and humidity leakage magnetic field alarm display screen (905) is fixedly connected to the top right side of the shielding cabinet (1).
6. A shielded cabinet with front and rear doors according to claim 2, characterized in that: The unlocking component (306) includes multiple unlocking levers (3061). The left ends of the multiple unlocking levers (3061) are fixedly connected to the right side of the corresponding locking ball (303). The outer walls of the multiple unlocking levers (3061) are slidably connected to the inner walls of the corresponding springs (304). Rotating locking blocks (3062) are fixedly connected to the front and rear ends of the right side of the outer walls of the multiple unlocking levers (3061). Rotating handles (3063) are rotatably connected to the right ends of the multiple unlocking levers (3061). Locking grooves (3064) are opened on the right side of the multiple fixing blocks (305). The inner walls of the multiple locking grooves (3064) are slidably connected to the outer walls of the corresponding rotating locking blocks (3062).
7. A shielded cabinet with front and rear doors according to claim 1, characterized in that: The left and right sides of the shielding cabinet (1) are fixedly connected with sealing grooves (10), and the adjacent sides of the two shielding doors (208) are fixedly connected with sealing rings (11). The outer walls of the two sealing rings (11) are respectively attached to the inner walls of the corresponding sealing grooves (10).
8. A shielded cabinet with front and rear doors according to claim 1, characterized in that: Multiple limiting blocks (12) are equidistantly arranged on the inner side of multiple fixing blocks (202). One side of each of the multiple limiting blocks (12) is fixedly connected to the other end of the corresponding slide rod (203), and one side of each of the multiple limiting blocks (12) is in contact with the other side of the corresponding fixing block (202).