Test system for monitoring shielding effectiveness of shielding room in real time and use method

Abstract

The invention provides a test system for monitoring shielding effectiveness of a shielding room in real time and a use method, the system comprises a base, the middle left side of the upper part of the base is fixedly connected with a hollow stand column, the right upper side of the outer wall of the hollow stand column is fixedly connected with connecting rods in sequence from top to bottom, and the right end between the connecting rods is fixedly connected with a fixed box; the right part of the fixed box is glued with a first sealing layer; an omnidirectional antenna is fixedly connected to an opening in the middle of the left portion of the inner side of the fixing box, and the omnidirectional antenna and the fixing box are sealed through conductive rubber. The upper end of the hollow stand column is fixedly connected with a conductive slip ring; the upper side of the outer wall of the hollow stand column is in bearing connection with a rotary switching type sample extruding and fixing assembly. When the to-be-tested sample is mounted, the to-be-tested sample can be directly placed in the extrusion cover, then the sliding rod is pushed by the operating rod, the suction cup can be adsorbed on the to-be-tested sample, so that the to-be-tested sample is mounted, the mounting process of the to-be-tested sample is free of a bonding step, and the mounting time of the to-be-tested sample can be effectively shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of shielding effectiveness testing, and in particular relates to a shielding effectiveness testing system for real-time monitoring of a shielding room and a use method thereof. Background Art

[0002] The real-time monitoring shielding room shielding effectiveness test system is a shielding effectiveness test device installed in the shielding room for use, which can detect the shielding effectiveness of various samples. For example, a shielding effectiveness test system with announcement number CN218037076U includes a shielding room, and the system also includes: a signal transmitting device, which is arranged in the shielding room, and the signal transmitting device includes an omnidirectional antenna, which is used to simultaneously transmit test electromagnetic wave signals in any direction. When the omnidirectional antenna is provided with a sample to be tested, the omnidirectional antenna emits multiple test electromagnetic wave signals in the sample space surrounded by the sample to be tested at different angles to the surface of the sample to be tested. There are still some problems in the actual use of the shielding effectiveness test system, such as:

[0003] 1. During the sample installation process, the sample to be tested needs to be bonded manually, but the manual bonding method is inefficient and it is difficult to disassemble the sample after bonding, which may affect the test efficiency of the shielding effectiveness test system and is inconvenient to use;

[0004] 2. The samples to be tested need to be replaced manually, and the installation and removal time is long, which greatly affects the test efficiency of the shielding effectiveness test system. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the present invention provides a shielding effectiveness test system for real-time monitoring of a shielding room and a method of use, which can facilitate the installation of samples to be tested without the need to bond the samples to be tested, thereby effectively improving the test efficiency of the shielding effectiveness test system. The present invention can also automatically replace samples to be tested, and the replacement time is short, thereby effectively improving the test efficiency of the shielding effectiveness test system and making it more convenient to use.

[0006] The technical solution is as follows: a system for testing the shielding effectiveness of a shielding room in real time, comprising a base, a support plate fixedly connected to the middle right side of the upper part of the base, and a first electric push rod fixedly connected to the middle upper opening of the right part of the support plate, wherein the left end of the output rod of the first electric push rod is fixedly connected to a moving seat; the left part of the moving seat is fixedly connected to a receiving antenna, characterized in that a hollow column is fixedly connected to the middle left side of the upper part of the base, and connecting rods are fixedly connected to the upper right side of the outer wall of the hollow column in sequence from top to bottom, wherein a fixing box is fixedly connected to the right end between the connecting rods; a first sealing layer is glued to the right part of the fixing box; an omnidirectional antenna is fixedly connected to the opening in the middle part of the left part of the inner side of the fixing box, and a conductive rubber seal is passed between the omnidirectional antenna and the fixing box; a conductive slip ring is fixedly connected to the upper end of the hollow column; a rotation switch is connected to the upper bearing of the outer wall of the hollow column A sample squeezing and fixing assembly can carry the sample to be tested through the rotating switching sample squeezing and fixing assembly, and can squeeze and fix the sample to be tested on the right part of the fixing box, wherein the rotating switching sample squeezing and fixing assembly is electrically connected to the upper end of the conductive slip ring; a fixing frame is fixedly connected to the lower right side of the outer wall of the hollow column, and a driving motor is fixedly connected to the right opening in the lower part of the fixing frame, wherein a driving gear is fixedly connected to the upper end of the output shaft of the driving motor, and the driving gear is meshed and transmission-connected with the rotating switching sample squeezing and fixing assembly; an entrance and exit are opened on the lower right side of the interior of the hollow column, and a circular hole is opened on the upper right side of the interior of the hollow column, wherein the circular hole is located between the connecting rods; the wire of the omnidirectional antenna passes through the circular hole and is moved out from the interior of the hollow column through the entrance and exit; the wire at the lower end of the conductive slip ring is moved out from the interior of the hollow column through the entrance and exit.

[0007] Preferably, the rotary switching sample extrusion fixing assembly comprises an upper rotary sleeve, a lower rotary sleeve is arranged on the lower side of the upper rotary sleeve, and U-shaped brackets are fixedly connected to the surrounding parts of the outer wall of the upper rotary sleeve and the surrounding parts of the outer wall of the lower rotary sleeve, wherein the second electric push rods are fixedly connected to the openings in the middle parts of the outer inner walls of the U-shaped brackets; the outer ends of the output rods of the second electric push rods are fixedly connected to connecting plates; an anti-separation extrusion cover structure is fixedly connected between each two upper and lower opposite connecting plates, and the sample to be tested can be fixed and supported by the anti-separation extrusion cover structure; a driven gear is fixedly connected to the outer wall of the lower rotary sleeve, and the driven gear is located on the lower side of the U-shaped bracket on the lower side.

[0008] Preferably, the upper rotating sleeve and the lower rotating sleeve are respectively bearing-connected to the upper side of the outer wall of the hollow column, and a connecting rod is provided between the upper rotating sleeve and the lower rotating sleeve.

[0009] Preferably, the driven gear is meshingly and transmission-connected with the driving gear.

[0010] Preferably, the second electric push rod is electrically connected to the upper end of the conductive slip ring through a wire.

[0011] Preferably, the anti-detachment extrusion hood structure includes an extrusion hood, a detection port is opened on the right side of the interior of the extrusion hood; a second sealing layer is glued to the right side of the inner side of the extrusion hood, and the second sealing layer is arranged around the detection port; fixed mounting hoods are fixedly connected to the openings around the right side of the extrusion hood, and through holes are opened on the right side of the interior of the fixed mounting hood, wherein a ventilated separation suction cup structure is slidably arranged inside the through hole, and the sample to be tested can be adsorbed and fixed by the ventilated separation suction cup structure.

[0012] Preferably, an extrusion cover is fixedly connected between each two upper and lower connecting plates, and the connecting plates are respectively located on the inner sides of the upper and lower parts of the extrusion cover, wherein the extrusion cover on the right side is arranged to be opposite to the fixing box.

[0013] Preferably, the ventilation separation type suction cup structure comprises a sliding rod, a connecting sleeve is glued to the left end of the sliding rod, and the suction cup is integrally connected to the left end of the connecting sleeve, wherein the suction cup is communicated with the connecting sleeve; an operating rod is fixedly connected to the right side of the outer wall of the sliding rod; an insertion hole is opened on the right side of the interior of the sliding rod, and a conical guide hole is opened on the left inner side of the insertion hole, wherein an air inlet is opened on the left inner side of the guide hole, and the air inlet is communicated with the suction cup; a moving rod is slidably arranged inside the insertion hole, and a sealing rod is integrally connected to the middle part of the left part of the moving rod, wherein the sealing rod is sealingly slidably arranged inside the air inlet; ventilation grooves are respectively opened on the surrounding parts of the outer wall of the moving rod; and an operating panel is fixedly connected to the right end of the moving rod.

[0014] Preferably, the sliding rods are slidably arranged inside the through holes respectively; and the suction cups are located on the inner side of the fixed installation cover.

[0015] Preferably, a socket is provided on the upper right side of the interior of the extrusion hood.

[0016] Preferably, the second electric push rods are electrically connected to an external control panel via conductive slip rings.

[0017] Preferably, the driving motor and the first electric push rod are electrically connected to an external control panel respectively.

[0018] Preferably, the receiving antenna is electrically connected to a spectrum analyzer, and the spectrum analyzer is electrically connected to an external control panel.

[0019] Preferably, the omnidirectional antenna is electrically connected to a signal transmitter, and the signal transmitter is electrically connected to an external control panel.

[0020] The present invention provides a method for testing the shielding effectiveness of a shielding room in real time, using the above-mentioned shielding effectiveness testing system, and specifically comprising the following steps:

[0021] Step 1: Place the samples to be tested into the extrusion cover respectively, and push the sliding rod through the operating rod to make the suction cup adsorb on the sample to be tested, thereby completing the fixation of the sample to be tested;

[0022] Step 2: Start the second electric push rod to move the extrusion cover opposite to the fixing box until the extrusion cover and the fixing box are closed, thereby squeezing and fixing the sample to be tested on the fixing box;

[0023] Step 3, start the first electric push rod, so that the first electric push rod drives the receiving antenna to approach the detection port through the moving seat;

[0024] Step 4: Start the signal transmitter and the spectrum analyzer, so that the signal transmitter sends out an electromagnetic wave signal through the omnidirectional antenna, and the spectrum analyzer receives the electromagnetic wave signal passing through the sample to be tested through the receiving antenna, and transmits the data of the electromagnetic wave signal to an external control panel for display;

[0025] Step 5, judging the shielding effectiveness of the sample to be tested according to the data displayed on the control panel;

[0026] Step 6, start the driving motor and the first electric push rod, so that the first electric push rod drives the receiving antenna to reset through the moving seat, and the driving motor drives the lower rotating sleeve to rotate through the driving gear and the driven gear, and the extrusion cover moves a certain distance until the next extrusion cover is aligned with the fixed box;

[0027] Step 7, repeating steps 1 to 6, and repeating the process repeatedly until the test of the sample is completed;

[0028] Step eight, pull the moving rod through the operation panel to allow air to enter the suction cup, then take the sample to be tested out from the inner side of the extrusion cover and place it in a designated location for storage, thereby completing the test of the sample.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. When installing the sample to be tested, the present invention can directly put the sample to be tested into the extrusion cover, and then push the sliding rod through the operating rod to make the suction cup adsorb on the sample to be tested, thereby completing the installation of the sample to be tested. The installation process of the sample to be tested does not have a bonding step, thereby effectively shortening the installation time of the sample to be tested; when removing the sample to be tested, it is only necessary to pull the moving rod through the operating panel until the blocking rod is moved out from the inside of the air inlet, and then the air can enter the suction cup, and the suction cup will lose its adsorption ability, and then the operator can easily take the sample to be tested out from the inner side of the extrusion cover. The process of installing and removing the sample to be tested of the present invention is simple and convenient, thereby greatly shortening the installation and removal time of the sample, thereby effectively improving the test efficiency of the shielding effectiveness test system.

[0031] 2. The present invention provides multiple extrusion covers, so that the test system can install multiple samples to be tested at one time, and the driving motor can drive the rotary switching sample extrusion fixing assembly to rotate through the active gear, so that the extrusion cover will drive the samples to be tested to face the fixing box in turn, thereby achieving the effect of automatically switching the samples to be tested, which can effectively shorten the time for switching samples, and then effectively improve the test efficiency of the shielding effectiveness test system, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention.

[0033] Figure 2 It is a partial cross-sectional schematic diagram of the present invention.

[0034] Figure 3 It is a structural schematic diagram of the rotary switching sample extrusion fixing assembly of the present invention.

[0035] Figure 4 It is a partial cross-sectional schematic diagram of the anti-separation extrusion cover structure of the present invention.

[0036] Figure 5 It is a partial cross-sectional schematic diagram of the ventilation separation type suction cup structure of the present invention.

[0037] Figure 6 It is a partial cross-sectional schematic diagram of the anti-separation extrusion cover structure of the present invention when in use.

[0038] Figure 7 It is a structural schematic diagram of the present invention in which the extrusion hood is improved one step further.

[0039] In the figure:

[0040] 1. Base; 2. Support plate; 3. First electric push rod; 4. Moving seat; 5. Receiving antenna; 6. Hollow column; 7. Connecting rod; 8. Fixing box; 9. First sealing layer; 10. Omnidirectional antenna; 11. Conductive slip ring; 12. Rotary switching sample extrusion fixing assembly; 13. Fixing frame; 14. Driving motor; 15. Driving gear; 16. Upper rotating sleeve; 17. Lower rotating sleeve; 18. U-shaped bracket; 19. Second electric push rod; 20. Connecting plate; 21. Anti-detachment extrusion cover structure; 22. Driven gear; 23. Extrusion cover; 24. Detection port; 25. Second sealing layer; 26. Fixed installation cover; 27. Ventilation separation suction cup structure; 28. Sliding rod; 29. ​​Connecting sleeve; 30. Suction cup; 31. Operating rod; 32. Moving rod; 33. Blocking rod; 34. Ventilation groove; 35. Operating panel; 36. Socket. DETAILED DESCRIPTION

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1 and attached Figure 2 As shown, a shielding effectiveness test system for real-time monitoring of a shielding room comprises a base 1, a support plate 2 is fixedly connected to the middle right side of the upper part of the base 1, and a first electric push rod 3 is fixedly connected to the middle upper opening of the right part of the support plate 2, wherein the left end of the output rod of the first electric push rod 3 is fixedly connected to a moving seat 4; the left part of the moving seat 4 is fixedly connected to a receiving antenna 5; a hollow column 6 is fixedly connected to the middle left side of the upper part of the base 1, and connecting rods 7 are fixedly connected to the upper right side of the outer wall of the hollow column 6 in sequence from top to bottom, wherein a fixing box 8 is fixedly connected to the right end between the connecting rods 7; a first sealing layer 9 is glued to the right part of the fixing box 8, and the first sealing layer 9 adopts a conductive rubber layer; an omnidirectional antenna 10 is fixedly connected to the opening of the middle part of the inner left part of the fixing box 8, and the omnidirectional antenna 10 and the fixing box 8 are sealed by conductive rubber; a conductive slip ring 11 is fixedly connected to the upper end of the hollow column 6; A fixing frame 13 is fixedly connected to the lower right side of the outer wall, and a driving motor 14 is fixedly connected to the right opening in the lower part of the fixing frame 13, wherein a driving gear 15 is fixedly connected to the upper end of the output shaft of the driving motor 14; an entrance and exit are opened on the lower right side of the interior of the hollow column 6, and a circular hole is opened on the upper right side of the interior of the hollow column 6, wherein the circular hole is located between the connecting rods 7; the wire of the omnidirectional antenna 10 passes through the circular hole and moves out from the interior of the hollow column 6 through the entrance and exit; the wire at the lower end of the conductive slip ring 11 moves out from the interior of the hollow column 6 through the entrance and exit; the driving motor 14 and the first electric push rod 3 are respectively electrically connected to the external control panel; the receiving antenna 5 is electrically connected to the spectrum analyzer through the wire, and the spectrum analyzer is electrically connected to the external control panel; the omnidirectional antenna 10 is electrically connected to the signal transmitter through the wire, and the signal transmitter is electrically connected to the external control panel.

[0042] One of them is a shielding effectiveness test system for real-time monitoring of a shielding room, which also includes a rotary switching sample squeezing and fixing component 12, and the rotary switching sample squeezing and fixing component 12 is bearing-connected to the upper side of the outer wall of the hollow column 6. The rotary switching sample squeezing and fixing component 12 can carry the sample to be tested, and can squeeze and fix the sample to be tested on the right part of the fixing box 8, wherein the rotary switching sample squeezing and fixing component 12 is electrically connected to the upper end of the conductive slip ring 11 through a wire; the driving gear 15 is meshed and driven to connect with the rotary switching sample squeezing and fixing component 12, which is conducive to achieving the effect of facilitating the installation of the sample to be tested, without the need to bond the sample to be tested, thereby effectively improving the test efficiency of the shielding effectiveness test system. The present invention can also automatically replace the sample to be tested, and the replacement time is short, thereby effectively improving the test efficiency of the shielding effectiveness test system and making it more convenient to use.

[0043] In order to prevent the electromagnetic wave signal from penetrating the fixing box 8, the fixing box 8 is a metal box with no cover on the right side.

[0044] Combined with Figure 3 As shown, the rotary switching sample extrusion fixing assembly 12 includes an upper rotary sleeve 16, a lower rotary sleeve 17, a U-shaped bracket 18, a second electric push rod 19, a connecting plate 20, an anti-separation extrusion cover structure 21 and a driven gear 22, the lower side of the upper rotary sleeve 16 is provided with a lower rotary sleeve 17, and the outer wall of the upper rotary sleeve 16 and the outer wall of the lower rotary sleeve 17 are respectively fixedly connected with the U-shaped bracket 18, wherein the middle opening of the inner wall of the outer side of the U-shaped bracket 18 is respectively fixedly connected with the second electric push rod 19; the outer end of the output rod of the second electric push rod 19 is respectively fixedly connected with the connecting plate 20; each two upper and lower opposite The connecting plates 20 are respectively fixedly connected with anti-separation extrusion cover structures 21, and the sample to be tested can be fixed and supported by the anti-separation extrusion cover structure 21; a driven gear 22 is fixedly connected to the outer wall of the lower rotating sleeve 17, and the driven gear 22 is located at the lower side of the U-shaped bracket 18 on the lower side; the upper rotating sleeve 16 and the lower rotating sleeve 17 are respectively bearing-connected to the upper side of the outer wall of the hollow column 6, and a connecting rod 7 is arranged between the upper rotating sleeve 16 and the lower rotating sleeve 17; the driven gear 22 is meshed and transmission-connected with the driving gear 15; the second electric push rod 19 is electrically connected to the upper end of the conductive slip ring 11 through a wire.

[0045] In order to enable the second electric push rod 19 to move, the second electric push rod 19 is electrically connected to the upper end of the conductive slip ring 11 through a wire, and the wire at the lower end of the conductive slip ring 11 is electrically connected to an external control panel. At this time, the second electric push rod 19 can be controlled through the control panel; the connecting wire between the conductive slip ring 11 and the second electric push rod 19 on the lower side is fixed to the U-shaped bracket 18 and the extrusion cover 23 through an arched wire pressing plate.

[0046] When using the system, the system can be installed in an external shielding room, and the external control panel can be installed outside the shielding room, so that the operator can monitor the shielding effectiveness test system in real time outside the shielding room. When testing the shielding effectiveness of the sample, the operator can place the sample to be tested on the inner side of the anti-separation extrusion cover structure 21, then leave the shielding room, and operate the control panel to enter the test mode. At this time, the control panel will automatically control the second electric push rod 19 near the fixed box 8 to start, so that the second electric push rod 19 drives the anti-separation extrusion cover structure 21 through the connecting plate 20 to perform The first electric push rod 3 is moved until the anti-separation extrusion cover structure 21 squeezes and fixes the sample to be tested on the right part of the fixing box 8, and then the control panel automatically controls the first electric push rod 3 to start, so that the first electric push rod 3 drives the receiving antenna 5 to move through the moving seat 4, until the receiving antenna 5 is close to the anti-separation extrusion cover structure 21, and then the control panel automatically controls the signal transmitter and the spectrum analyzer to start, at this time the omnidirectional antenna 10 will emit an electromagnetic wave signal, and the spectrum analyzer will receive the electromagnetic wave signal passing through the sample to be tested through the receiving antenna 5, and transmit the data of the electromagnetic wave signal to the control panel in real time for The display is displayed in a row, so that the operator can judge the shielding effectiveness of the sample to be tested and realize the effect of real-time monitoring of the shielding effectiveness of the sample. When the test of the first sample is completed, the control panel will automatically control the first electric push rod 3 to start, so that the receiving antenna 5 is reset, and then the second electric push rod 19 will be automatically controlled to start, so that the second electric push rod 19 drives the anti-separation extrusion cover structure 21 away from the fixed box 8 through the connecting plate 20, and then the control panel will automatically control the drive motor 14 to start, so that the drive motor 14 drives the lower rotating sleeve 17 to rotate through the driving gear 15 and the driven gear 22, and the lower rotating sleeve 17 will drive the anti-separation extrusion cover structure 21 to move a certain distance through the U-shaped bracket 18, the second electric push rod 19 and the connecting plate 20, until the next anti-separation extrusion cover structure 21 is opposite to the fixed box 8, thereby completing the automatic replacement of the sample, and then the control panel will automatically control the system to detect the sample to be tested. Compared with the prior art, the present invention can install multiple samples at one time, and can automatically replace the samples for testing, thereby effectively improving the testing efficiency of the shielding effectiveness test system, making it more convenient to use, and realizing the effect of automatically replacing the sample to be tested.

[0047] Combined with Figure 4As shown, the anti-detachment extrusion cover structure 21 includes an extrusion cover 23, a detection port 24, a second sealing layer 25, a fixed mounting cover 26 and a ventilation separation type suction cup structure 27, wherein the detection port 24 is provided on the inner right side of the extrusion cover 23; the second sealing layer 25 is glued to the inner right side of the extrusion cover 23, and the second sealing layer 25 is arranged around the detection port 24; the openings of the right side of the extrusion cover 23 are fixedly connected to the fixed mounting covers 26, and the inner right side of the fixed mounting cover 26 is provided with through holes, wherein the interior of the through holes is slidably provided with ventilation separation type suction cup structures 27, and the ventilation separation type suction cup structures 27 can adsorb and fix the sample to be tested; the extrusion cover 23 is fixedly connected between each two upper and lower opposite connecting plates 20, and the connecting plates 20 are respectively located on the inner sides of the upper and lower parts of the extrusion cover 23, wherein the extrusion cover 23 on the right side is arranged to be opposite to the fixing box 8; the second sealing layer 25 adopts a conductive rubber layer.

[0048] Combined with Figure 6 As shown, when installing the sample to be tested, the operator can directly place the sample to be tested on the inner side of the extrusion cover 23, and make the sample to be tested rest on the second sealing layer 25, and then the operator can push the ventilated separation suction cup structure 27 in turn to make the ventilated separation suction cup structure 27 adsorb on the sample to be tested, thereby completing the installation of the sample to be tested. The installation process is simple and fast, and there is no need to bond the sample to be tested, and it is relatively easy to disassemble the sample to be tested, thereby achieving the effect of facilitating the installation of the sample to be tested, thereby effectively improving the test efficiency of the shielding effectiveness test system; when the extrusion cover 23 moves toward the fixed box 8, the sample to be tested is squeezed and fixed to the right part of the fixed box 8 by the extrusion cover 23.

[0049] Combined with Figure 5As shown, the ventilation separation suction cup structure 27 includes a sliding rod 28, a connecting sleeve 29, a suction cup 30, an operating rod 31, a moving rod 32, a blocking rod 33, a ventilation groove 34 and an operating plate 35. The left end of the sliding rod 28 is glued with the connecting sleeve 29, and the left end of the connecting sleeve 29 is integrally connected with the suction cup 30, wherein the suction cup 30 is communicated with the connecting sleeve 29; the connecting sleeve 29 is a rubber sleeve; the suction cup 30 is a trumpet-shaped rubber suction cup; the operating rod 31 is fixedly connected to the right side of the outer wall of the sliding rod 28; a plug hole is opened on the right side of the interior of the sliding rod 28, and a cone is opened on the left side of the inner side of the plug hole shaped guide hole, wherein an air inlet hole is opened on the inner left part of the guide hole, and the air inlet hole is communicated with the suction cup 30; a moving rod 32 is slidably arranged inside the jack, and a blocking rod 33 is integrally connected to the left middle part of the moving rod 32, wherein the blocking rod 33 is sealingly slidably arranged inside the air inlet hole; the blocking rod 33 adopts a stainless steel rod adapted to the inside of the air inlet hole; ventilation grooves 34 are respectively opened on the surrounding parts of the outer wall of the moving rod 32; an operating panel 35 is fixedly connected to the right end of the moving rod 32; sliding rods 28 are respectively slidably arranged inside the through hole; the suction cup 30 is located on the inner side of the fixed mounting cover 26.

[0050] Combined with Figure 5 and attached Figure 6 As shown, after the sample to be tested is placed inside the extrusion cover 23, the operator can push the sliding rod 28 through the operating rod 31 to make the sliding rod 28 slide on the fixed installation cover 26 until the suction cup 30 is adsorbed on the sample to be tested. Since the operating rod 31 can limit the range of movement of the sliding rod 28, and the sample to be tested can limit the range of movement of the sliding rod 28 through the suction cup 30, the sample to be tested can be fixed in the extrusion cover 23, thereby avoiding the problem of the sample to be tested being separated from the extrusion cover 23 during the movement of the extrusion cover 23; since the sliding rod 28 can slide in the fixed installation cover 26, when the sample to be tested is squeezed, the sliding rod 28 will move with the movement of the sample to be tested, thereby avoiding the problem of the sample to be tested being damaged by the sliding rod 28;

[0051] When it is necessary to remove the sample to be tested, the operator can pull the moving rod 32 through the operating panel 35 until the moving rod 32 drives the blocking rod 33 to move out from the inside of the air inlet. At this time, the external air will enter the jack through the ventilation groove 34, and then the air will enter the suction cup 30 through the tapered guide hole and the air inlet. Since the air enters the inside of the suction cup 30, the suction cup 30 can no longer adsorb the sample to be tested, and the operator can easily take out the sample to be tested from the inner side of the extrusion cover 23. Compared with the prior art, the present invention does not require pasting when installing the sample to be tested, and the disassembly process is simple and convenient, which can greatly shorten the installation and disassembly time of the sample, and thus can effectively improve the test efficiency of the shielding effectiveness test system.

[0052] Combined with Figure 7 As shown, in order to improve the application scope of the present system, a socket 36 is provided on the upper right side of the extrusion hood 23. When the sample to be tested cannot be adsorbed by the suction cup 30, the operator can directly insert the sample into the extrusion hood 23 through the socket 36. It should be noted that the length of the sample to be tested needs to be greater than the side length of the extrusion hood 23, so as to prevent the sample to be tested from detaching from the extrusion hood 23 by itself; the connecting wires of the conductive slip ring 11 and the second electric push rod 19 on the lower side are fixed to the U-shaped bracket 18 and the extrusion hood 23 through the arched wire pressing plate. It should be noted that the wires need to avoid the socket 36.

[0053] The present invention provides a method for testing the shielding effectiveness of a shielding room in real time, using the above-mentioned shielding effectiveness testing system, and specifically comprising the following steps:

[0054] Step 1: Place the samples to be tested into the extrusion cover 23 respectively, and push the sliding rod 28 through the operating rod 31 to make the suction cup 30 adsorb on the sample to be tested, thereby completing the fixation of the sample to be tested;

[0055] Step 2: Start the second electric push rod 19 to move the extrusion cover 23 facing the fixing box 8 until the extrusion cover 23 and the fixing box 8 are closed, thereby squeezing and fixing the sample to be tested on the fixing box 8;

[0056] Step 3, start the first electric push rod 3, so that the first electric push rod 3 drives the receiving antenna 5 to approach the detection port 24 through the moving seat 4;

[0057] Step 4: Start the signal transmitter and the spectrum analyzer, so that the signal transmitter sends out an electromagnetic wave signal through the omnidirectional antenna 10, and the spectrum analyzer receives the electromagnetic wave signal passing through the sample to be tested through the receiving antenna 5, and transmits the data of the electromagnetic wave signal to an external control panel for display;

[0058] Step 5, judging the shielding effectiveness of the sample to be tested according to the data displayed on the control panel;

[0059] Step 6: Start the drive motor 14 and the first electric push rod 3, so that the first electric push rod 3 drives the receiving antenna 5 to reset through the moving seat 4, and the drive motor 14 drives the lower rotating sleeve 17 to rotate through the driving gear 15 and the driven gear 22, and moves the extrusion cover 23 a certain distance until the next extrusion cover 23 is aligned with the fixed box 8;

[0060] Step 7, repeating steps 1 to 6, and repeating the process repeatedly until the test of the sample is completed;

[0061] Step eight, pull the moving rod 32 through the operating panel 35 to allow air to enter the suction cup 30, then take the sample to be tested out from the inner side of the extrusion cover 23 and place it in a designated location for storage, thereby completing the test of the sample.

[0062] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A system for testing the shielding effectiveness of a shielding room in real time, comprising a base (1), a support plate (2) being fixedly connected to the right side of the upper part of the base (1), and a first electric push rod (3) being fixedly connected to the opening of the upper right part of the support plate (2), wherein the left end of the output rod of the first electric push rod (3) is fixedly connected to a moving seat (4); and the left part of the moving seat (4) is fixedly connected to a receiving antenna (5), characterized in that: A hollow column (6) is fixedly connected to the left side of the upper middle part of the base (1), and connecting rods (7) are fixedly connected to the upper right side of the outer wall of the hollow column (6) in sequence from top to bottom, wherein a fixing box (8) is fixedly connected to the right end between the connecting rods (7); a first sealing layer (9) is glued to the right part of the fixing box (8); an omnidirectional antenna (10) is fixedly connected to the opening in the middle part of the left inner side of the fixing box (8), and a conductive rubber seal is formed between the omnidirectional antenna (10) and the fixing box (8); a conductive slip ring (11) is fixedly connected to the upper end of the hollow column (6); a rotating switching type sample extrusion fixing assembly (12) is connected to the bearing on the upper side of the outer wall of the hollow column (6), and the rotating switching type sample extrusion fixing assembly (12) can carry a sample to be tested and can extrude and fix the sample to be tested on the right part of the fixing box (8), wherein the rotating switching type sample The extrusion fixing component (12) is electrically connected to the upper end of the conductive slip ring (11); a fixing frame (13) is fixedly connected to the lower right side of the outer wall of the hollow column (6), and a driving motor (14) is fixedly connected to the right opening in the lower part of the fixing frame (13), wherein the upper end of the output shaft of the driving motor (14) is fixedly connected to a driving gear (15), and the driving gear (15) is meshingly connected to the rotary switching sample extrusion fixing component (12); an entrance and exit are provided on the lower right side of the interior of the hollow column (6), and a circular hole is provided on the upper right side of the interior of the hollow column (6), wherein the circular hole is located between the connecting rods (7); the wire of the omnidirectional antenna (10) passes through the circular hole and moves out of the interior of the hollow column (6) through the entrance and exit; the wire at the lower end of the conductive slip ring (11) moves out of the interior of the hollow column (6) through the entrance and exit.

2. The shielding effectiveness testing system for real-time monitoring of a shielding room according to claim 1, characterized in that: The rotary switching sample extrusion fixing assembly (12) comprises an upper rotary sleeve (16), a lower rotary sleeve (17) is arranged on the lower side of the upper rotary sleeve (16), and the outer wall of the upper rotary sleeve (16) and the outer wall of the lower rotary sleeve (17) are respectively fixedly connected with U-shaped brackets (18), wherein the middle opening of the outer inner wall of the U-shaped bracket (18) is respectively fixedly connected with a second electric push rod (19); the outer end of the output rod of the second electric push rod (19) is respectively fixedly connected with a connecting plate (20); an anti-separation extrusion cover structure (21) is respectively fixedly connected between each two upper and lower opposite connecting plates (20), and the sample to be tested can be fixed and supported by the anti-separation extrusion cover structure (21); a driven gear (22) is fixedly connected to the outer wall of the lower rotary sleeve (17), and the driven gear (22) is located at the lower side of the U-shaped bracket (18) described at the lower side.

3. The shielding effectiveness testing system for real-time monitoring of a shielding room according to claim 2, characterized in that: The upper rotating sleeve (16) and the lower rotating sleeve (17) are respectively bearing-connected to the upper side of the outer wall of the hollow column (6), and a connecting rod (7) is arranged between the upper rotating sleeve (16) and the lower rotating sleeve (17); the driven gear (22) is meshed and transmission-connected with the driving gear (15).

4. The shielding effectiveness testing system for real-time monitoring of a shielding room according to claim 3, characterized in that: The second electric push rod (19) is electrically connected to the upper end of the conductive slip ring (11) via a wire.

5. The shielding effectiveness testing system for real-time monitoring of a shielding room according to claim 4, characterized in that: The anti-detachment extrusion cover structure (21) comprises an extrusion cover (23), wherein a detection port (24) is provided on the right side of the interior of the extrusion cover (23); a second sealing layer (25) is glued to the right side of the interior of the extrusion cover (23), and the second sealing layer (25) is arranged around the detection port (24); fixed mounting covers (26) are fixedly connected to the openings of the right side of the extrusion cover (23), and through holes are provided on the right side of the interior of the fixed mounting cover (26), wherein ventilation separation type suction cup structures (27) are slidably provided inside the through holes, and the sample to be tested can be adsorbed and fixed by the ventilation separation type suction cup structures (27).

6. The shielding effectiveness testing system for real-time monitoring of a shielding room according to claim 5, characterized in that: An extrusion cover (23) is fixedly connected between each two upper and lower connecting plates (20), and the connecting plates (20) are respectively located on the inner sides of the upper and lower parts of the extrusion cover (23), wherein the extrusion cover (23) on the right side is arranged to be opposite to the fixing box (8).

7. The shielding effectiveness testing system for real-time monitoring of a shielding room according to claim 6, characterized in that: The ventilation separation suction cup structure (27) comprises a sliding rod (28), the left end of the sliding rod (28) is glued with a connecting sleeve (29), and the left end of the connecting sleeve (29) is integrally connected with a suction cup (30), wherein the suction cup (30) is communicated with the connecting sleeve (29); an operating rod (31) is fixedly connected to the right side of the outer wall of the sliding rod (28); an insertion hole is provided on the right side of the interior of the sliding rod (28), and a conical guide hole is provided on the left side of the inner side of the insertion hole, wherein an air inlet is provided on the left side of the inner side of the guide hole, and the air inlet is communicated with the suction cup (30); a moving rod (32) is slidably arranged inside the insertion hole, and a blocking rod (33) is integrally connected to the middle part of the left part of the moving rod (32), wherein the blocking rod (33) is sealingly slidably arranged inside the air inlet; ventilation grooves (34) are respectively provided on the surrounding parts of the outer wall of the moving rod (32); and an operating plate (35) is fixedly connected to the right end of the moving rod (32).

8. The shielding effectiveness testing system for real-time monitoring of a shielding room according to claim 7, characterized in that: The sliding rods (28) are respectively slidably arranged inside the through holes; the suction cups (30) are located on the inner side of the fixed installation cover (26).

9. The shielding effectiveness testing system for real-time monitoring of a shielding room according to claim 8, characterized in that: A socket (36) is provided on the upper right side of the extrusion cover (23).

10. A method for using a shielding effectiveness test system for real-time monitoring of a shielding room, applied to the shielding effectiveness test system according to any one of claims 1 to 9, characterized in that: The specific steps include: Step 1: Place the samples to be tested into the extrusion cover (23) respectively, and push the sliding rod (28) through the operating rod (31) to make the suction cup (30) adsorb on the sample to be tested, thereby completing the fixation of the sample to be tested; Step 2: Start the second electric push rod (19) to move the extrusion cover (23) directly opposite to the fixing box (8) until the extrusion cover (23) and the fixing box (8) are closed, thereby squeezing and fixing the sample to be tested on the fixing box (8); Step 3, starting the first electric push rod (3), so that the first electric push rod (3) drives the receiving antenna (5) to approach the detection port (24) through the moving seat (4); Step 4: Start the signal transmitter and the spectrum analyzer, so that the signal transmitter sends out an electromagnetic wave signal through the omnidirectional antenna (10), and the spectrum analyzer receives the electromagnetic wave signal passing through the sample to be tested through the receiving antenna (5), and transmits the data of the electromagnetic wave signal to an external control panel for display; Step 5, judging the shielding effectiveness of the sample to be tested according to the data displayed on the control panel; Step 6, starting the driving motor (14) and the first electric push rod (3), so that the first electric push rod (3) drives the receiving antenna (5) to reset through the moving seat (4), and the driving motor (14) drives the lower rotating sleeve (17) to rotate through the driving gear (15) and the driven gear (22), and moves the extrusion cover (23) a certain distance until the next extrusion cover (23) is aligned with the fixed box (8); Step 7, repeating steps 1 to 6, and repeating the process repeatedly until the test of the sample is completed; Step eight, pull the moving rod (32) through the operating panel (35) to allow air to enter the suction cup (30), then take the sample to be tested out from the inner side of the extrusion cover (23) and place it in a designated location for storage, thereby completing the test of the sample.

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