Signal interference prevention equipment for communication

Abstract

The invention discloses signal interference prevention equipment for communication, and belongs to the technical field of signal interference prevention. A signal interference prevention device for communication comprises a shielding cabinet used for containing communication equipment and a shielding door used for sealing the shielding cabinet, a threading opening used for threading is formed in the back face of the shielding cabinet, and a shielding pipe used for wrapping a cable is arranged at the position of the threading opening. Shielding assemblies for shielding the threading opening are symmetrically arranged on the surface of the threading opening, and the two shielding assemblies slide above and below the threading opening respectively; the shielding tube comprises a tube body and a clamping cotton strip arranged in the tube body; according to the communication equipment, the shielding pipe is arranged, the two pipelines wrap the cable, the two pipelines are rapidly combined through the binding belt under the cooperation of the multiple first clamping rings, and the cable close to the communication equipment is wrapped through the shielding pipe, so that the cable is prevented from being subjected to electromagnetic interference, and meanwhile mutual interference between adjacent cables can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-signal interference, and in particular to an anti-signal interference device for communication. Background Art

[0002] Communication system is a general term for technical systems used to complete the information transmission process. Communication systems are divided into wireless communication systems and wired communication systems. In mobile communication systems, it is mainly achieved by the propagation of electromagnetic waves in free space or the transmission mechanism in guided media. During the communication process of the communication system, it may be interfered by various conditions such as magnetic fields and noise, which in turn affects the transmission and reception of signals. Therefore, communication equipment will be placed inside the communication cabinet to prevent the communication device from being subject to electromagnetic interference during use.

[0003] However, when the existing anti-interference cabinet is in use, the gaps at the wire threading position are large, and the gaps on the cabinet surface have a significant impact on the shielding effectiveness of electromagnetic interference. Therefore, the present application proposes a communication anti-signal interference device to reduce the gaps at the wire threading position and improve the shielding effectiveness against electromagnetic interference. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a communication anti-signal interference device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A communication signal interference prevention device includes a shielding cabinet for accommodating communication equipment and a shielding door for closing the shielding cabinet. The shielding cabinet has a threading opening on the back for threading cables. A shielding tube for wrapping cables is provided at the threading opening. Shielding assemblies for shielding the threading opening are symmetrically provided on the surface of the threading opening. Two shielding assemblies slide above and below the threading opening, respectively. The shielding tube includes a tube body and a clamping cotton strip arranged inside the tube body. The tube body is in a "7" shape and is composed of two half-pipes.

[0006] In some embodiments, a plurality of first clamping rings are provided at intervals on the vertical portion of the tube surface, and a second clamping ring that cooperates with the shielding assembly is provided on the horizontal portion of the tube surface.

[0007] In some embodiments, the shielding assembly includes a mounting plate that slides vertically on the surface of the wire threading port and a plurality of shielding rods arranged on the surface of the mounting plate. The plurality of shielding rods are arranged side by side and all slide on the surface of the wire threading port. A first spring is fixed to one end of the shielding rod away from the wire threading port.

[0008] In some embodiments, multiple said shielding rods are all square, and a convex rod is fixed on one side of the shielding rod, a groove is formed on the side of the shielding rod away from the convex rod, and adjacent shielding rods are respectively connected by sliding through the convex rod and the groove.

[0009] In some embodiments, multiple said shielding rods are slidingly limited by a second limiting component. The second limiting component includes a limiting clamping plate that slides on the inner wall of the shielding cabinet through multiple telescopic rods. Multiple push rods are fixed on the top of the mounting plate. Multiple inclined blocks are fixed on the side of the limiting clamping plate away from the shielding rod. Multiple said push rods respectively correspond to multiple inclined blocks. During the descending process of the push rods, they cooperate with the inclined blocks to push the limiting clamping plate to slide towards the shielding rod.

[0010] In some embodiments, a shielding component is arranged on the side of the shielding component facing the shielding door. The shielding component includes a first shielding cloth and a second shielding cloth respectively installed on the surfaces of two mounting plates. The first shielding cloth and the second shielding cloth are respectively installed on the surface of the mounting plate through a connecting frame.

[0011] In some embodiments, a third shielding cloth is installed on the surface of the wire passing port. The cross-sections of the first shielding cloth, the second shielding cloth and the third shielding cloth are distributed in a "pin" shape.

[0012] In some embodiments, a shielding cover is hinged on the back of the shielding cabinet. The shielding cover corresponds to the position of the wire passing port. The shielding cover fixes the shielding pipe through a first clamping strip and a second clamping strip.

[0013] In some embodiments, an anti-electromagnetic interference heat dissipation component is arranged on the top of the shielding cabinet. The heat dissipation component includes an air duct fixed on the top of the shielding cabinet and two heat dissipation fans installed on the top of the shielding cabinet. Waveguide windows are respectively arranged at both ends of the air duct. Multiple L-shaped air holes are formed on the surface of the waveguide window, and a stepped groove for increasing the contact area between the air holes and the air duct is formed on the lower surface of the waveguide window.

[0014] In some embodiments, two sealing plates for closing the air duct are arranged inside the air duct. The two sealing plates move through a switching component for adjusting the internal circulation or external circulation mode.

[0015] Compared with the prior art, the present invention provides a signal interference prevention device for communication, which has the following beneficial effects.

[0016] 1. In the present invention, by arranging the shielding pipe, two pipes wrap the cable, and the two pipes are quickly combined by using a tie strap in cooperation with multiple first snap rings. The shielding pipe wraps the cable close to the communication device, thereby avoiding electromagnetic interference to the cable and also avoiding mutual interference between adjacent cables.

[0017] 2. The present invention sets a blocking component at the wire threading port, so that multiple shielding rods temporarily clamp the shielding tube, and the remaining shielding rods conflict with each other to block the wire threading port, thereby avoiding electromagnetic interference with the communication equipment inside the shielding box. By setting a first limiting component and a second limiting component, the positions of the mounting plate and multiple shielding rods can be limited simultaneously.

[0018] 3. The present invention sets a shielding assembly to further shield the threading opening through the first shielding cloth, the second shielding cloth and the third shielding cloth, reflects the leaked electromagnetic waves, and further loses the electromagnetic waves, thereby avoiding the influence of the electromagnetic waves leaked between the two sets of shielding assemblies on the communication equipment.

[0019] Other advantages, objects and features of the present invention will be described in part in the following description; and in part will be apparent to those skilled in the art based on an examination of the following; or may be taught from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the positive axial structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the rear axial structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the side cross-sectional structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the local structure of the threading port in the present invention.

[0024] Figure 5 Schematic diagram of the explosion structure of the shielding tube in the present invention.

[0025] Figure 6 Schematic diagram of the structure of the shielding rod in the present invention.

[0026] Figure 7 This is a schematic structural diagram of the shielding component in the present invention in use.

[0027] Figure 8 It is a structural schematic diagram of the shielding component in the present invention.

[0028] Figure 9 For the present invention Figure 8 A in the figure is an enlarged structural diagram.

[0029] Figure 10 It is a schematic diagram of the rear view structure of the shielding component in the present invention.

[0030] Figure 11 It is a schematic diagram of the partial structure of the threading port in the side view of the present invention.

[0031] Figure 12 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0032] Figure 13 Schematic diagram of the structure of the waveguide window in the present invention.

[0033] Figure 14 It is a schematic diagram of the partial structure of the bottom cross section of the present invention.

[0034] Figure 15 It is a schematic diagram of the rear axial cross-sectional structure of the present invention.

[0035] Figure 16 For the present invention Figure 13 Schematic diagram of the structure enlarged at point B.

[0036] In the picture: 1. Shielding cabinet; 2. Shielding door; 3. Threading port; 4. Shielding tube; 401. Tube body; 402. Clamping cotton strip; 403. First clamping ring; 404. Second clamping ring; 5. Shielding assembly; 501. Mounting plate; 502. First spring; 503. Shielding rod; 5031. Protruding rod; 5032. Groove; 504. First limit assembly; 5041. Ratchet bar; 5042. Limit ratchet; 5043. Stopper; 5044. Torsion spring; 505. Second limit assembly; 5051. Limiting splint; 5052. Telescopic Rod; 5053, second spring; 5054, push rod; 5055, oblique block; 6, shielding assembly; 601, first shielding cloth; 602, second shielding cloth; 603, third shielding cloth; 7, shielding cover; 701, first clamping strip; 702, second clamping strip; 8, heat dissipation assembly; 801, air duct; 802, waveguide window; 803, heat dissipation fan; 804, filter; 805, sealing plate; 806, switching assembly; 8061, guide rod; 8062, threaded rod; 807, expansion slot; 9, blocking ring; 10, shielding plug. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Reference Figure 1-16A communication signal interference prevention device includes a shielding cabinet 1 for placing communication equipment and a shielding door 2 for closing the shielding cabinet 1. A frame for installing communication equipment is fixed inside the shielding cabinet 1. A threading hole 3 for threading wires is opened on the back of the shielding cabinet 1. The edge of the threading hole 3 extends into the interior of the shielding cabinet 1. A shielding tube 4 for wrapping cables is provided at the threading hole 3. Shielding components 5 for shielding the threading hole 3 are symmetrically provided on the surface of the threading hole 3. Two shielding components 5 slide above and below the threading hole 3 respectively. The shielding tube 4 includes a tube body 401 and a clamping cotton strip 402 arranged inside the tube body 401. The tube body 401 is in the shape of a "7" with an excessive rounded corner at the corner position, and the tube body 401 is composed of two half-tubes. The clamping cotton strip 402 is respectively arranged on the inner walls of the two tubes. A plurality of first clamping rings 403 are arranged at intervals on the vertical part of the surface of the tube body 401, and a second clamping ring 404 that cooperates with the shielding component 5 is provided on the horizontal part of the tube body 401.

[0039] It can be understood that by setting up the wire threading port 3, it is convenient to connect the cable with the communication equipment inside the shielding cabinet 1. Since the cables close to the communication equipment are easily affected by electromagnetic interference, the shielding tube 4 is set up to wrap the cables with two pipes, and use a cable tie to quickly merge the two pipes with the cooperation of multiple first clamps 403. The cables are clamped by the clamping cotton strips 402, and can adapt to cables of different diameters. The cables close to the communication equipment are wrapped by the shielding tube 4 to avoid electromagnetic interference of the cables, and at the same time, mutual interference between adjacent cables can be avoided.

[0040] Specifically, the shielding component 5 includes a mounting plate 501 that slides vertically on the surface of the threading port 3 and a plurality of shielding rods 503 arranged on the surface of the mounting plate 501. The plurality of shielding rods 503 are arranged side by side and all slide on the surface of the threading port 3. The lower ends of the plurality of shielding rods 503 are located inside the threading port 3. The end of the shielding rod 503 away from the threading port 3 is fixed with a first spring 502, and the other end of the first spring 502 is fixed to the surface of the mounting plate 501. The mounting plate 501 is U-shaped, and the two sides of the mounting plate 501 slide on both sides of the threading port 3 through a slide groove. First limiting components 504 for limiting the mounting plate 501 in one direction are respectively provided on both sides of the mounting plate 501. The first limiting component 504 is used to prevent the mounting plate 501 from sliding freely in a direction away from the threading port 3. The plurality of shielding rods 503 are slidably limited by a second limiting component 505. The shielding rods 503 are all square in shape, and a protruding rod 5031 is fixed to one side of the shielding rod 503. A groove 5032 is formed on the side of the shielding rod 503 away from the protruding rod 5031. Adjacent shielding rods 503 are slidably connected by the protruding rod 5031 and the groove 5032. The first limiting assembly 504 includes a ratchet bar 5041 fixed to the inner wall of the shielding cabinet 1 and a limiting ratchet 5042 that rotates on the side of the mounting plate 501 via a rotating shaft. A stopper 5043 is fixed to the side of the mounting plate 501 for limiting the limiting ratchet 5042. A torsion spring 5044 is sleeved on the surface of the rotating shaft for causing the limiting ratchet 5042 to rotate toward one end of the ratchet bar 5041 toward the stopper 5043. The second limiting assembly 505 includes a limiting splint 5051 that slides on the inner wall of the shielding cabinet 1 through a plurality of telescopic rods 5052, and a plurality of second springs 5053 are fixed to the side of the limiting splint 5051 away from the shielding rod 503. The second springs 5053 are used to drive the limiting splint 5051 away from the shielding rod 503. The other ends of the plurality of telescopic rods 5052 and the plurality of second springs 5053 are fixed to the inner wall of the shielding cabinet 1, and a plurality of push rods 5054 are fixed to the top of the mounting plate 501. A plurality of inclined blocks 5055 are fixed to the side of the limiting splint 5051 away from the shielding rod 503. The plurality of push rods 5054 correspond to the plurality of inclined blocks 5055 respectively, and cooperate with the inclined blocks 5055 during the descending process of the push rods 5054 to push the limiting splint 5051 to slide toward the shielding rod 503. The limiting splint 5051 is provided with anti-slip grooves on the side facing the shielding rod 503.

[0041] It can be understood that after the cable is installed in the shielding tube 4, the upper end of the shielding tube 4 is located in the threading port 3, and the shielding tube 4 is placed on the surface of the shielding rod 503 located below through the second clamping ring 404. By pushing the two mounting plates 501 close to each other, multiple shielding rods 503 are driven to slide toward the shielding tube 4. When the upper and lower groups of shielding rods 503 are in contact, one end of the shielding rod 503 corresponding to the shielding tube 4 enters between the second clamping ring 404, and multiple shielding rods 503 temporarily clamp the shielding tube 4, and the remaining shielding rods 503 conflict with each other to block the threading port 3 to prevent electric shock. The magnetism interferes with the communication equipment inside the shielding box; since the shielding tube 4 is circular, a large gap will be generated at the contact position between the shielding rod 503 and the shielding tube 4. Therefore, by providing a second clamping ring 404, when the shielding rod 503 clamps the shielding tube 4, the shielding rod 503 enters between the second clamping rings 404, which makes it easier for the shielding rod 503 to clamp the shielding tube 4 and further blocks the gap generated thereby, thereby improving the shielding effect of the threading port 3; by providing a plurality of shielding rods 503, it is convenient to use with different numbers of shielding tubes 4 while blocking the threading port 3; By setting the first limiting component 504, the position of the mounting plate 501 is limited under the cooperation of the ratchet rack 5041 and the limiting ratchet 5042, avoiding the two mounting plates 501 moving away from each other. By setting the second limiting component 505, when the mounting plate 501 slides in the direction close to the wire passing port 3, the limiting clamping plate 5051 is driven to approach the shielding rod 503 through the cooperation of the plurality of push rods 5054 and the plurality of inclined blocks 5055. When the upper and lower groups of shielding rods 503 come into contact, the limiting clamping plate 5051 closely adheres to the surfaces of the plurality of shielding rods 503, and the friction force between the limiting clamping plate 5051 and the shielding rod 503 is increased through the anti-slip lines, thereby preventing the shielding rod 503 from separating from the shielding tube 4 during long-term operation. When the mounting plate 501 moves away from the wire passing port 3, the limiting ratchet 5042 is toggled to separate it from the ratchet rack 5041, releasing the limit on the mounting plate 501. The displacement distance of the mounting plate 501 is provided by the first spring 502, causing the push rod 5054 to separate from the inclined block 5055, and the second spring 5053 drives the limiting clamping plate 5051 away from the shielding rod 503, thereby releasing the clamping on the shielding rod 503.

[0042] Specifically, a shielding component 6 is provided on one side of the shielding component 5 facing the shielding door 2. The shielding component 6 includes a first shielding cloth 601 and a second shielding cloth 602 respectively installed on the surfaces of the two mounting plates 501. The first shielding cloth 601 and the second shielding cloth 602 are respectively installed on the surface of the mounting plate 501 through a connecting frame. A third shielding cloth 603 is installed on the surface of the wire passing port 3. The cross-sections of the first shielding cloth 601, the second shielding cloth 602, and the third shielding cloth 603 are distributed in a "pin" shape. The lower end of the first shielding cloth 601 is within the range of the third shielding cloth 603, and the upper end of the second shielding cloth 602 is within the range of the third shielding cloth 603. A gap for the cable to pass through is provided between the first shielding cloth 601, the second shielding cloth 602, and the third shielding cloth 603.

[0043] It can be understood that in order to prevent the electromagnetic leakage between the two shielding components 5 from affecting the communication equipment, the shielding component 6 is provided. The position of the wire passing port 3 is further shielded by the first shielding cloth 601, the second shielding cloth 602, and the third shielding cloth 603, and the leaked electromagnetic waves are reflected to further attenuate the electromagnetic waves. When wiring is required, the two mounting plates 501 drive the two shielding rods 503 to separate. At the same time, the first shielding cloth 601 and the second shielding cloth 602 are moved away from each other, expanding the gap between the first shielding cloth 601, the second shielding cloth 602, and the third shielding cloth 603, thereby facilitating the wiring work.

[0044] Specifically, a shielding cover 7 is hinged on the back of the shielding cabinet 1, and the shielding cover 7 corresponds to the position of the wire threading port 3. The shielding cover 7 fixes the shielding tube 4 through the first clamp 701 and the second clamp 702. Multiple first clamps 701 are fixed on the inner wall of the shielding cover 7, and multiple second clamps 702 are fixed on the back of the shielding cabinet 1. The first clamp 701 and the second clamp 702 are both made of rubber. The surface of the shielding cover 7 is provided with a lock for fixing the shielding cover 7 to the back of the shielding cabinet 1.

[0045] It is understandable that by providing the shielding cover 7, the wire threading opening 3 and the plurality of shielding tubes 4 are further shielded, thereby further shielding electromagnetic waves. Under the action of the first clamping strip 701 and the second clamping strip 702, the shielding tubes 4 are clamped and fixed.

[0046] Specifically, a heat dissipation component 8 for preventing electromagnetic interference is provided on the top of the shielding cabinet 1. The heat dissipation component 8 includes an air duct 801 fixed on the top of the shielding cabinet 1 and two heat dissipation fans 803 installed on the top of the shielding cabinet 1. Both ends of the air duct 801 are open and arranged horizontally. Waveguide windows 802 are respectively provided at both ends of the air duct 801. A plurality of L-shaped air holes are provided on the surface of the waveguide window 802. A step groove is provided on the lower surface of the waveguide window 802 for increasing the contact area between the air holes and the air duct 801. The step groove of the waveguide window 802 located at the air inlet of the air duct 801 faces the inner end of the air duct 801, and the step groove of the waveguide window 802 located at the air outlet of the air duct 801 faces the outer end of the air duct 801. A filter 804 is fixed at one end of the air inlet of the air duct 801, and the filter 804 is located on the outside of the waveguide window 802. Two expansion slots 807 are provided on the upper surface of the shielding cabinet 1, and the two expansion slots 807 are respectively located below the two waveguide windows 802; Two sealing plates 805 for closing the air duct 801 are provided inside the air duct 801. The two sealing plates 805 are moved by the switching component 806 to adjust the internal circulation or external circulation mode. The switching component 806 includes two guide rods 8061 fixed at the top of the air duct 801 and a threaded rod 8062 rotating at the top of the air duct 801. The threaded rod 8062 is located between the two guide rods 8061. The two sealing plates 805 slide on the surfaces of the two guide rods 8061. There are two groups of threaded rods 8062, and the two threaded rods 8062 are symmetrically arranged. The two sealing plates 805 are respectively threadedly connected to the surfaces of the two threaded rods 8062. The two threaded rods 8062 are driven to rotate by a double-headed motor, and the double-headed motor is located between the two cooling fans 803.

[0047] It can be understood that in order to prevent the ventilation holes on the existing shielding cabinet 1 from leaking electromagnetic waves and affecting the communication equipment, an anti-electromagnetic interference heat dissipation component 8 is set up. By setting up an air duct 801 and a waveguide window 802, under the action of the L-shaped air holes on the surface of the waveguide window 802, the electromagnetic waves can be reduced from entering the internal communication settings of the shielding cabinet 1 through the air duct 801. During operation, one of the cooling fans 803 supplies air to the inside of the shielding cabinet 1, and the other heat dissipation box draws the air out of the inside of the shielding cabinet 1. Since the air holes are L-shaped, the gap between the air holes facing downward and the air duct 801 is small, which affects the air flow. Therefore, a step groove is opened on the lower surface of the waveguide window 802 and an expansion slot 807 is set to improve the contact between the air holes facing downward and the air duct 801. area, improves air fluidity; by setting the directions of the waveguide windows 802 at the air inlet and outlet positions of the air duct 801 to be consistent, one of the heat dissipation fans 803 draws the air in the air duct 801, generating negative pressure, so that the waveguide window 802 draws the outside air into the air duct 801 and enters the interior of the shielding cabinet 1, while the other heat dissipation fan 803 discharges the air in the shielding cabinet 1 to the other end of the air duct 801 and discharges it through the other waveguide window 802, so as to perform external air circulation. By setting the side of the air holes of the waveguide window 802 with the step groove in the direction of air discharge, and the end of the waveguide window 802 with neatly arranged air holes in the direction of air entry, it is more conducive to the air entering the interior of the air holes, thereby improving the air fluidity and reducing the influence of the waveguide window 802 on heat dissipation. By setting a sealing plate 805 and a switching component 806, and setting temperature sensors inside the shielding cabinet 1 and on the outer surface of the shielding cabinet 1, when the temperature outside the shielding cabinet 1 and inside the shielding cabinet 1 is lower than the threshold value, the double-headed motor drives the threaded rod 8062 to rotate, thereby driving the two sealing plates 805 to move in opposite directions, so that the sealing plate 805 passes over the two cooling fans 803 to close the two ends of the air duct 801, so that the two cooling fans 803 perform internal circulation to the inside of the shielding cabinet 1 through the air duct 801, and use the side wall of the shielding cabinet 1 to exchange heat with the outside world for heat dissipation. When the temperature is higher than the threshold value, external circulation heat dissipation is performed; the air duct 801 is completely closed by the two sealing plates 805, thereby further improving the shielding effect. At the same time, during the internal circulation, the entry of dust can be effectively reduced.

[0048] Specifically, a shielding ring 9 is fixed to the inner wall of the shielding cabinet 1 along the edge of the cabinet door. The cross section of the shielding ring 9 is L-shaped, and a shielding plug 10 that matches the shielding ring 9 is installed on the surface of the shielding door 2. The shielding rod 503, the first shielding cloth 601, the second shielding cloth 602, the third shielding cloth 603, the shielding cover 7, the air duct 801, the waveguide window 802, the sealing plate 805, the blocking ring 9 and the shielding plug 10 are all electrically connected to the shielding cabinet 1, and the shielding cabinet 1 is grounded.

[0049] It can be understood that by providing the shielding plug 10 and the blocking ring 9 , the gap between the shielding door 2 and the shielding cabinet 1 is sealed to prevent leakage of electromagnetic waves.

[0050] In the present invention, by installing the communication device inside the shielding cabinet 1, placing the cable between two pipes, wrapping the two pipes around the cable, and using cable ties to quickly combine the two pipes with the cooperation of multiple first clamping rings 403, clamping the cable with the clamping cotton strip 402, and wrapping the cable near the communication device with the shielding pipe 4, electromagnetic interference to the cable can be avoided, and at the same time, interference between adjacent cables can be avoided. Then, one end of the cable plug is wound around between the first shielding cloth 601 and the third shielding cloth 603 or between the second shielding cloth 602 and the third shielding cloth 603 and inserted on the surface of the communication device for connection. Then, the connected shielding pipe 4 is placed on the surface of the shielding rod 503 located below through the second clamping ring 404. After temporary placement, the next cable is continued to be connected. After the surfaces of all the cables to be installed are wrapped with the shielding pipe 4, by pushing the two mounting plates 501 closer to each other, multiple shielding rods 503 are driven to slide towards the shielding pipe 4. When the upper and lower groups of shielding rods 503 come into contact, one end of the shielding rod 503 corresponding to the shielding pipe 4 enters between the second clamping rings 404, and multiple shielding rods 503 temporarily clamp the shielding pipe 4, and the remaining shielding rods 503 are in contact with each other to block the wire passing hole 3, avoiding electromagnetic interference to the communication devices inside the shielding box; at the same time, the second clamping ring 404 further blocks the gap generated between the shielding rod 503 and the shielding pipe 4, thereby improving the shielding effect of the wire passing hole 3. At the same time, the position of the mounting plate 501 is limited by the first limiting component 504, and the push rod 5054 and multiple inclined blocks 5055 in the second limiting component 505 cooperate to drive the limiting clamping plate 5051 to approach the shielding rod 503. When the upper and lower groups of shielding rods 503 come into contact, the limiting clamping plate 5051 is closely attached to the surfaces of multiple shielding rods 503, and the friction between the limiting clamping plate 5051 and the shielding rod 503 is increased through the anti-slip pattern, thereby avoiding the separation of the shielding rod 503 and the shielding pipe 4 during long-term operation; when the mounting plates 501 approach each other, the first shielding cloth 601 and the second shielding cloth 602 are driven to approach each other, forming a "pin" shape between the first shielding cloth 601, the second shielding cloth 602 and the third shielding cloth 603. While not affecting the passage of the cable, the position of the wire passing hole 3 is further blocked, reflecting the leaked electromagnetic waves and further dissipating the electromagnetic waves. After the shielding pipe 4 is installed, the shielding cover 7 is closed, and the shielding cover 7 further blocks the wire passing hole 3 and multiple shielding pipes 4, further shielding the electromagnetic waves, and clamping and fixing the shielding pipe 4 through the first clamping strip 701 and the second clamping strip 702;In order to prevent the electromagnetic waves leaking from the ventilation holes on the existing shielding cabinet 1 from affecting the communication equipment, an anti-electromagnetic interference heat dissipation component 8 is set. Under the action of the waveguide window 802, the electromagnetic waves can be reduced from entering the internal communication settings of the shielding cabinet 1 through the air duct 801. When working, one of the heat dissipation fans 803 supplies air to the inside of the shielding cabinet 1, and the other heat dissipation box extracts the air inside the shielding cabinet 1 for external circulation heat dissipation. When the temperature outside the shielding cabinet 1 and inside the shielding cabinet 1 is lower than the threshold, the two sealing plates 805 are driven by the switching component 806 to cross the two heat dissipation fans 803. The ends of the air duct 801 are sealed, allowing two cooling fans 803 to circulate air through the air duct 801 within the shielding cabinet 1, utilizing the side walls of the shielding cabinet 1 for heat exchange and dissipation. The air duct 801 is completely sealed by two sealing plates 805, further enhancing the shielding effect. By electrically connecting the shielding rod 503, the first shielding cloth 601, the second shielding cloth 602, the third shielding cloth 603, the shielding cover 7, the air duct 801 shielding ring 9, and the shielding plug 10 to the shielding cabinet 1, and grounding the shielding cabinet 1, the shielding cabinet 1 improves its shielding effectiveness against electromagnetic interference.

[0051] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent. Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A communication anti-signal interference device, characterized in that: It includes a shielding cabinet (1) for placing communication devices and a shielding door (2) for closing the shielding cabinet (1). A wire-passing port (3) for threading wires is provided on the back of the shielding cabinet (1). A shielding tube (4) for wrapping cables is arranged at the position of the wire-passing port (3). Shielding components (5) for blocking the wire-passing port (3) are symmetrically arranged on the surface of the wire-passing port (3), and the two shielding components (5) slide above and below the wire-passing port (3) respectively. The shielding tube (4) includes a tube body (401) and a clamping cotton strip (402) arranged inside the tube body (401). The tube body (401) is in a "7" shape and is composed of two half-pipes.

2. A communication anti-signal interference device according to claim 1, characterized in that: A plurality of first clamping rings (403) are arranged at intervals on the vertical part of the surface of the tube body (401), and a second clamping ring (404) cooperating with the shielding component (5) is arranged on the horizontal part of the tube body (401).

3. The communication anti-signal interference device according to claim 1, characterized in that: The shielding component (5) includes a mounting plate (501) sliding vertically on the surface of the wire-passing port (3) and a plurality of shielding rods (503) arranged on the surface of the mounting plate (501). The plurality of shielding rods (503) are arranged side by side and all slide on the surface of the wire-passing port (3). A first spring (502) is fixed at one end of the shielding rod (503) away from the wire-passing port (3).

4. The communication anti-signal interference device according to claim 3, characterized in that: The plurality of shielding rods (503) are all square, and a convex rod (5031) is fixed on one side of the shielding rod (503). A groove (5032) is formed on the side of the shielding rod (503) away from the convex rod (5031). The adjacent shielding rods (503) are slidably connected through the convex rod (5031) and the groove (5032) respectively.

5. The communication anti-signal interference device according to claim 3, characterized in that: The plurality of shielding rods (503) are slidably limited by a second limiting component (505). The second limiting component (505) includes a limiting clamping plate (5051) sliding on the inner wall of the shielding cabinet (1) through a plurality of telescopic rods (5052). A plurality of push rods (5054) are fixed at the top of the mounting plate (501). A plurality of inclined blocks (5055) are fixed on the side of the limiting clamping plate (5051) away from the shielding rod (503). The plurality of push rods (5054) correspond to the plurality of inclined blocks (5055) respectively. During the downward movement of the push rods (5054), they cooperate with the inclined blocks (5055) to push the limiting clamping plate (5051) to slide towards the shielding rod (503).

6. The communication anti-signal interference device according to claim 1, characterized in that: A shielding component (6) is arranged on the side of the shielding component (5) facing the shielding door (2). The shielding component (6) includes a first shielding cloth (601) and a second shielding cloth (602) respectively installed on the surfaces of the two mounting plates (501). The first shielding cloth (601) and the second shielding cloth (602) are respectively installed on the surface of the mounting plate (501) through connecting frames.

7. The communication anti-signal interference device according to claim 6, characterized in that: A third shielding cloth (603) is installed on the surface of the wire-passing port (3). The cross-sections of the first shielding cloth (601), the second shielding cloth (602) and the third shielding cloth (603) are distributed in a "pin" shape.

8. The communication anti-signal interference device according to claim 1, characterized in that: A shielding cover (7) is hingedly connected to the back of the shielding cabinet (1); the shielding cover (7) corresponds to the position of the threading opening (3); and the shielding cover (7) fixes the shielding tube (4) via a first clamping strip (701) and a second clamping strip (702).

9. The communication anti-signal interference device according to claim 1, characterized in that: The shielding cabinet (1) is provided with an electromagnetic interference-proof heat dissipation component (8) on the top, and the heat dissipation component (8) comprises an air duct (801) fixed on the top of the shielding cabinet (1) and two heat dissipation fans (803) installed on the top of the shielding cabinet (1), and waveguide windows (802) are respectively provided at both ends of the air duct (801), and a plurality of L-shaped air holes are provided on the surface of the waveguide window (802), and a step groove is provided on the lower surface of the waveguide window (802) for increasing the contact area between the air holes and the air duct (801).

10. The communication anti-signal interference device according to claim 9, characterized in that: Two sealing plates (805) for closing the air duct (801) are provided inside the air duct (801), and the two sealing plates (805) are moved by a switching assembly (806) to adjust the internal circulation or external circulation mode.

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