Safety performance detection device for shielding door

Abstract

The invention discloses a safety performance detection device for a shielding door, and relates to the technical field of shielding door safety detection, the safety performance detection device comprises a movable detection platform, a base of the movable detection platform is formed by four telescopic columns, the bottom is equipped with detachable rollers, and rapid movement and fixation are supported; a transverse metal frame is arranged at the top, synchronous lifting with the stand column is achieved through a first telescopic assembly, the detection requirements of shielding doors of different heights are met, a first rail is arranged on the transverse metal frame, two sets of driving mechanisms are controlled by a driving box to drive a first supporting plate to move transversely, and accurate positioning of the detection assembly is achieved. The front side of the detection platform is provided with an electric control telescopic rod and a modularized shielding plate, the shielding plate is composed of second telescopic assemblies and second supporting plates in an alternating mode, an extensible protection barrier is formed, electromagnetic shielding, mechanical strength and environmental adaptability detection are synchronously completed through a single device, efficiency loss caused by traditional multi-device switching is avoided, and the detection period is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of safety detection of screen doors, and particularly to a safety performance detection device for screen doors. Background Technique

[0002] With the rapid development of modern technology, screen doors, as an important safety device, are widely used in places such as subways, high-speed rails, hospitals, laboratories, computer rooms, data centers, etc. Their main function is to prevent people from entering dangerous areas and ensure the safety of people and machines. However, screen doors face many challenges in actual applications. First of all, the safety performance of screen doors is directly related to the safety of people and equipment. If there are faults or unstable performance in the screen doors, it may lead to safety accidents such as people being pinched or falling onto the first track, and may even cause more serious consequences. Therefore, it is particularly important to conduct regular safety performance inspections on screen doors.

[0003] Secondly, the working environment of electromagnetic signal screen doors is complex and changeable. Generally, in special places such as laboratories, the screen doors also need to meet strict shielding requirements for electromagnetic waves. These complex working environments pose higher requirements for the performance of screen doors and increase the difficulty of safety performance detection. When conducting experiments on experimental objects in the laboratory, different scenarios need to be set to simulate the actual environment. For example, when conducting experiments on experimental objects in a low-temperature environment, the screen doors will show icing phenomena caused by low temperature, which will then cause damage to the screen doors. However, the reasons for the damage cannot be understood in time, resulting in the need for personnel to repair the damaged screen doors. In some cases of damage, personnel cannot repair them in a short time, increasing the probability of electromagnetic signal damage to personnel during the inspection and repair process.

[0004] In view of the above problems, the present invention proposes a safety performance detection device for electromagnetic signal screen doors, aiming to solve the deficiencies of existing detection devices and improve the comprehensiveness and accuracy of safety performance detection of screen doors. The detection device of the present invention can not only comprehensively detect the mechanical performance, electrical performance, safety performance, etc. of screen doors, but also adapt to complex and changeable working environments to ensure the accuracy and reliability of detection results. Summary of the Invention

[0005] The purpose of the present invention is to provide a safety performance detection device for screen doors to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A safety performance detection device for screen doors. The movable detection platform consists of four telescopic columns as the base, equipped with detachable rollers at the bottom to support rapid movement and fixation; a horizontal metal frame is set at the top, and is synchronized with the columns for lifting through the first telescopic component to adapt to the detection requirements of screen doors at different heights.

[0007] According to the above technical solution, an electric control telescopic rod and a modular shielding plate are arranged on the front side of the detection platform. The shielding plate is alternately composed of a second telescopic component and a second support plate to form an expandable protective barrier. A second track is arranged on the surface of the shielding plate. The support seat can move up and down along the track, and a first receiving sensor is installed on its side wall to collect electromagnetic signals in cooperation with the second receiving sensor inside the shielding door.

[0008] According to the above technical solution, for electromagnetic shielding performance detection, by comparing the signal intensities of the first receiving sensor and the second receiving sensor, the electromagnetic attenuation value (a3 = |a1 - a2|) is calculated. If a3 ≥ the preset threshold, it is determined to be qualified.

[0009] According to the above technical solution, the dynamic loading device: a third telescopic component and a metal hammer block are arranged on the side wall of the support seat, and multi-directional loads are applied through the pressure plates at the ends of the annularly distributed fourth telescopic components. Closed-loop feedback mechanism: Vibration sensors are installed at the four corners of the door frame, and a deformation monitoring camera is configured on the top of the support seat to monitor the deformation amount of the door gap in real time. When the deformation amount exceeds the first threshold, the impact frequency is reduced. When it exceeds the second threshold, an alarm is triggered. When it exceeds the third threshold, the loading is stopped and an alarm is given.

[0010] According to the above technical solution, a high and low temperature environment simulation chamber is installed at the top of the column through an adjustable connecting rod. The low temperature component and the high temperature component are integrated inside, and the fifth and sixth telescopic components drive the simulation chamber to cover the detection area. The intelligent temperature control compensation system maintains the working temperature of the sensor stable through the high temperature source structure and the low temperature source structure to ensure the reliability of the detection data in extreme environments.

[0011] According to the above technical solution, a first track is arranged on the horizontally placed metal frame. Two driving mechanisms are controlled by a driving box to drive the first support plate to move horizontally to achieve precise positioning of the detection component. The first support plate carries a robotic arm rod and a repair frame connected by a shaft ball. The repair medium is stored inside the frame and evenly coated on the defective area of the door gap through a perforated plate. Electromagnetic shielding defect repair logic: When an unqualified area is detected, the metal hammer block is driven to hammer the door gap at an increasing frequency. If the electromagnetic attenuation value decreases with the hammering, it is determined that the seal fails, otherwise the sensor failure is marked.

[0012] According to the above technical solution, for electromagnetic shielding detection: The signal generator emits signals in a frequency band, and the double sensors synchronously collect data to calculate the electromagnetic attenuation value. Mechanical strength test: The dynamic loading device applies pressure in stages, and the structural stability is evaluated by combining deformation monitoring and vibration data. Environmental simulation verification: The detection process is repeated in high and low temperature environments to verify the performance consistency of the shielding door. Defect repair: The repair module is automatically triggered according to the detection results to complete the filling of the sealing medium or the structural calibration.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, 1. Multi-dimensional detection integration: A single device synchronously completes the detection of electromagnetic shielding, mechanical strength, and environmental adaptability, avoiding the efficiency loss caused by the switching of traditional multiple devices and shortening the detection cycle.

[0014] 2. Dynamic adaptive detection: The closed-loop feedback mechanism realizes the real-time optimization of detection parameters, and the height-adjustable design of the sensor supports the precise adaptation of different sizes of shielding doors, reducing the detection error rate.

[0015] 3. Defect repair integration: The detection results directly drive the operation of the repair module, and the precise filling of the repair medium and the mechanical calibration are carried out synchronously, improving the repair qualification rate.

[0016] 4. Environmental simulation authenticity: The high and low temperature simulation chamber covers the detection area, combined with the temperature control compensation system, to ensure the effectiveness of detection data under extreme environments.

[0017] 5. Mobile deployment convenience: The telescopic columns and roller components support rapid movement and fixation, adapting to the detection requirements of multiple scenarios such as subway stations and laboratories, and improving the deployment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the overall three-dimensional structure schematic diagram of the present invention Figure 1 ; Figure 2 is the overall three-dimensional structure schematic diagram of the present invention Figure 2 ; Figure 3 is the schematic diagram of the movable detection platform of the present invention; Figure 4 is the schematic diagram of the framework of the present invention; Figure 5 is the schematic diagram of the support seat structure of the present invention; Figure 6 is the schematic diagram of the metal hammer block of the present invention; Figure 7 is the schematic diagram of the high and low temperature environment simulation chamber of the present invention; Figure 8 is the schematic diagram of the robotic arm rod of the present invention; Figure 9 is the schematic diagram of the intelligent temperature control compensation system structure of the present invention; Figure 10 is the schematic diagram of the perforated plate of the present invention; In the figure: 1. Movable detection platform; 2. Column; 3. Horizontally placed metal frame; 4. Telescopic assembly; 5. Support frame; 6. Drive box; 7. First track; 8. First support plate; 9. Drive mechanism; 10. Electric control telescopic rod; 11. Shielding plate; 12. Second telescopic assembly; 13. First receiving sensor; 14. Second receiving sensor; 15. Second track; 16. Second support plate; 17. Support base; 18. Third telescopic assembly; 19. Metal hammer block; 20. Vibration sensor; 21. Deformation monitoring camera; 22. Fourth telescopic assembly; 23. Pressure plate; 24. Adjustable connecting rod; 25. Fifth telescopic assembly; 26. High and low temperature environment simulation chamber; 27. Low temperature preset assembly; 28. High temperature preset assembly; 29. Sixth telescopic assembly; 30. Intelligent temperature control compensation system; 31. High temperature source structure; 32. Low temperature source structure; 35. Robotic arm rod; 36. Axis ball; 37. Frame; 38. Storage bin; 39. Metal frame; 40. Repair hole; 41. Perforated plate; 42. Delivery hole. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-10 , the present invention provides a technical solution: a safety performance detection device for a shielding door, including a movable detection platform 1; In the first embodiment, roller assemblies can be inserted and installed at the bottoms of the four columns 2 included in the movable detection platform 1. The roller assemblies are plug-in external structures for moving the movable detection platform 1. Manually push the movable detection platform 1 to position the movable detection platform 1 in front of the shielding door to be tested; The tops of the four columns 2 form a support platform. The support platform includes a horizontally placed metal frame 3 fixedly installed on the tops of the columns 2. Both the horizontally placed metal frame 3 and the columns 2 are telescopic structures, and a first telescopic assembly 4 is provided in the middle part of the horizontally placed metal frame 3 and the columns 2. By remotely controlling the telescopic movement of the horizontally placed metal frame 3 and the columns 2, the size change process of the movable detection platform 1 can be realized, and then different sizes of shielding doors can be adapted; A safety protection component is provided on the front side of the movable detection platform, i.e., on the side wall in contact with the screen door. The safety protection component includes two groups of electric control telescopic rods 10 fixedly installed on the front side wall of the movable detection platform. The two groups of electric control telescopic rods 10 are respectively arranged on the upper side and the lower side of the first telescopic component 4 of the column 2. A shielding plate 11 is fixedly installed on the two groups of electric control telescopic rods 10. The shielding plate 11 includes a number of second telescopic components 12 and a number of second support plates 16. The second telescopic components 12 and the second support plates 16 are arranged adjacent to each other. By remotely controlling the synchronous operation of the first telescopic component 4 and the second telescopic component 12, the shielding plate 11 can be extended and retracted as the column 2 extends and retracts, and then match screen doors of different sizes; A second track 15 is installed on the contact surface of the second support plate 16. A number of support seats 17 are slidably arranged on the second track 15 from top to bottom. A first receiving sensor 13 is installed on the side wall surface of each support seat 17. Remotely controlling the lifting movement of the support seat 17 along the second track 15 drives the first receiving sensor 13 to move up and down. The first receiving sensor 13 is not provided on a part of the second telescopic component 12. A number of second receiving sensors 14 are arranged on the inner frame of the screen door from top to bottom. The second receiving sensors 14 are usually in fixed positions and are pre-arranged and installed according to the size of the screen door. After the movable detection platform 1 is pushed to the unclosed screen door, the first receiving sensor 13 is remotely controlled to move on the second track 15 until a first receiving sensor 13 matches the signal of a second receiving sensor 14. At this time, the two are at the same height. Then, the movable detection platform 1 is driven out, and then the screen door is closed. Finally, the movable detection platform 1 is pushed to a position close to the screen door. The first receiving sensor 13 and the second receiving sensor 14 collect the signal intensity synchronously. The first receiving sensor 13 obtains the electromagnetic intensity a1 outside the screen door, and the second receiving sensor 14 obtains the electromagnetic intensity a2 inside the screen door. The electromagnetic attenuation value a3 is calculated, and then it is detected whether the electromagnetic barrier safety performance of the screen door is qualified. A rated difference a4 is preset in the detection system. If a3 is greater than a4, it means that the electromagnetic barrier safety performance of the screen door is qualified, otherwise it is unqualified; A signal generator is arranged inside the screen door. The signal generator emits a swept-frequency signal, and both the first receiving sensor 13 and the second receiving sensor 14 can capture and receive this signal.

[0021] In the second embodiment, a dynamic pressure loading device is arranged on the contact surface of the second support plate 16, and the dynamic pressure loading device includes a third telescopic component 18 arranged on the side wall surface of the support seat 17. The third telescopic component 18 adopts a hydraulic drive system and is fixed on the side wall surface of the support seat 17 through a flange. The end of the third telescopic component 18 is fixedly installed with a metal hammer block 19 through a precision slot. The surface of the metal hammer block 19 is covered with a 3mm thick oil-resistant rubber layer. The third telescopic component 18 is remotely controlled to drive the metal hammer block 19 to do reciprocating motion, and then drive the metal hammer block 19 to hammer the gaps on the four walls of the shielding door. A plurality of fourth telescopic components 22 are arranged in a ring around the metal hammer block 19, and a pressure plate 23 is welded at the end of the fourth telescopic component 22. The fourth telescopic component 22 is remotely driven to telescope and move, driving the pressure plate 23 to telescope, and in the process of telescoping, pressure is applied to the periphery of the shielding door gap. The modular design allows the metal hammer block 19 to be quickly replaced; Vibration sensors 20 are arranged around the shielding door frame. The vibration sensors 20 are magnetically mounted at the four corners of the door body, and the spacing error is ≤0.5mm; A deformation monitoring camera 21 is installed on the top of the support seat 17, equipped with a laser-assisted positioning system; Mechanical strength test process: Step 1, pre-test stage: start the hydraulic synchronous calibration system matched with the third telescopic component 18, the third telescopic component 18 performs 10 no-load reciprocating motions (stroke 0-200mm), the vibration sensor 20 completes baseline frequency acquisition, and the deformation monitoring camera 21 automatically focuses to establish a door gap reference image, which is the initial image; The second step is the dynamic loading stage: the third telescopic component 18 drives the metal hammer 19 to impact the door gap at a frequency of 0.5 Hz, and simultaneously starts the pressure plate 23. The load is applied through the distributed pressure plate 23 to ensure that the area hit by the metal hammer 19 has stable prerequisites, and reduce the vibration impact amplitude caused by the knocking of other metal hammers 19. At this time, the vibration monitoring system matched with the vibration sensor 20 tracks the frequency data in real time, captures the resonance frequency offset of the door body, and obtains more accurate vibration frequency data. The deformation monitoring camera 21 automatically focuses to establish a door gap reference image. At this time, the shielded door gap is hammered by the metal hammer 19, and this image is a real-time image; Step 3, closed-loop feedback stage: The deformation monitoring camera 21 automatically focuses to establish a reference image of the door gap. When the structural deformation amount on both sides of the door gap exceeds the first preset deformation data, the system automatically reduces the impact frequency to 0.2 Hz. When the structural deformation amount on both sides of the door gap exceeds the second preset deformation data, an alarm is triggered. When the structural deformation amount on both sides of the door gap exceeds the third preset deformation data, the loading is immediately stopped and an audible and visual alarm is given. The first preset deformation data is less than the second preset deformation data which is less than the third preset deformation data. A stepped preset data provides a detection standard for the shielding door undergoing mechanical strength testing, and each detection standard has a matching feedback process. The emergency stop device and the real-time monitoring mechanism ensure the safety and controllability of the detection process and prevent damage to the equipment or the door body.

[0022] In the third embodiment, when the detection system detects that the electromagnetic shielding effect of the shielding door is unqualified, the area where the electromagnetic shielding effect is unqualified is determined. Then, the support seat 17 in this area is determined. Next, the metal hammer block 19 on this support seat 17 is driven to increase the hammering frequency. The increase in the hammering frequency is divided into three levels, namely low frequency, medium frequency, and high frequency, and the hammering frequency of the metal hammer block 19 is gradually increased in a progressive manner. The detection system continuously obtains the a3 value on both sides of the door gap of the shielding door in this area. If the a3 value gradually decreases during the process of increasing the hammering frequency of the metal hammer block 19, it indicates that the door gap spacing of this area of the shielding door is unqualified. If the a3 value does not change during the process of increasing the hammering frequency of the metal hammer block 19, the detection system marks that there is a problem with the first receiving sensor 13 or the second receiving sensor 14, and manual inspection is required after the experiment. By hammering the door gap of the area where the electromagnetic shielding effect is unqualified with the metal hammer block 19, the reason for the unqualified electromagnetic shielding effect is judged. This detection method can remedy the problems that occur in the shielding door during the operation of the laboratory. The external sealing structure is used to temporarily block the door gap in this area, temporarily improving the shielding effect of the shielding door and waiting for the end of the experiment. Without this judgment process, it is necessary to process the area where the electromagnetic shielding effect is unqualified during each experiment, increasing the risk to personnel.

[0023] Fourth Embodiment: Adjustable connecting rods 24 are symmetrically installed at the top of the column. A fifth telescopic assembly 25 and a sixth telescopic assembly 29 are provided on the adjustable connecting rods 24. The fifth telescopic assembly 25 controls the length of the adjustable connecting rods 24, and the sixth telescopic assembly 29 controls the height of the adjustable connecting rods 24. The end of the adjustable connecting rods 24 is fixedly installed with a high and low temperature environment simulation chamber 26. A low temperature preset assembly 27 and a high temperature preset assembly 28 are arranged in the high and low temperature environment simulation chamber 26. Both the low temperature preset assembly 27 and the high temperature preset assembly 28 are structures of the prior art, and the temperature is adjusted by blowing hot air and cold air. As the height and width of the movable detection platform 1 are adjusted, the position of the high and low temperature environment simulation chamber 26 is also adjusted accordingly, so that the high and low temperature environment simulation chamber 26 is located at the door seams on both sides of the shielding door, facilitating the environmental simulation of the shielding door. The height of the high and low temperature environment simulation chamber 26 is raised by remotely driving the sixth telescopic assembly 29, and then the fifth telescopic assembly 25 is driven to move the high and low temperature environment simulation chamber 26 to the inner side of the shielding door. Then, the sixth telescopic assembly 29 is driven to lower the height of the high and low temperature environment simulation chamber 26, and finally, the fifth telescopic assembly 25 is driven to move the high and low temperature environment simulation chamber 26 to the inner side of the shielding door and make contact, so that the high and low temperature environment simulation chamber 26 and the shielding door reach a positional relationship that can realize environmental simulation. During the low temperature environment detection, when experiments are carried out in the laboratory, experiments under extreme environments are usually carried out. Therefore, for the safety performance detection of the shielding door in the extreme low temperature environment, environmental simulation is first carried out. The high and low temperature environment simulation chamber 26 covers the detection area of the shielding door, and the detection system is started to lower the temperature in the high and low temperature environment simulation chamber 26 to the preset low temperature, simulating the working conditions of the low temperature test in the laboratory. After reaching the low temperature environment simulation duration, the low temperature electromagnetic shielding detection is started. The signal generator emits a frequency band signal (the commonly used frequency band in the experiment). The first receiving sensor 13 and the second receiving sensor 14 synchronously collect the signal intensity. The detection system obtains the data obtained by the first receiving sensor 13 and the second receiving sensor 14 and analyzes it. According to the judgment method of the first embodiment, it is judged whether the electromagnetic signal shielding function of the shielding door is qualified in the low temperature environment. Similarly, after the high and low temperature environment simulation chamber 26 covers the detection area of the shielding door, the detection system is started to raise the temperature in the high and low temperature environment simulation chamber 26 to the preset high temperature, simulating the working conditions of the high temperature test in the laboratory. After reaching the high temperature environment simulation duration, the high temperature electromagnetic shielding detection is started. The signal generator emits a frequency band signal (the commonly used frequency band in the experiment). The first receiving sensor 13 and the second receiving sensor 14 synchronously collect the signal intensity. The detection system obtains the data obtained by the first receiving sensor 13 and the second receiving sensor 14 and analyzes it. According to the judgment method of the first embodiment, it is judged whether the electromagnetic signal shielding function of the shielding door is qualified in the low temperature environment. Through the high and low temperature simulation chamber and the temperature control compensation system, seamless connection between the detection equipment and the actual working conditions of the laboratory is realized, and a qualified detection of the true safety performance of the shielding door is made; An intelligent temperature control compensation system 30 is arranged on one side of the first receiving sensor 13. A high temperature source structure 31 and a low temperature source structure 32 are arranged in the intelligent temperature control compensation system 30. The high temperature source structure 31 and the low temperature source structure 32 may be a hot air blower and a cold air blower. The intelligent temperature control compensation system 30 obtains the local temperature value in real time, and performs a temperature stabilization process on the first receiving sensor 13 through the high temperature source structure 31 and the low temperature source structure 32, so that the first receiving sensor 13 is always in a temperature range consistent with the surrounding environment. By simulating the environmental conditions outside and inside the shielding door, the accuracy of the detection result is further increased. The intelligent temperature control compensation system 30 is adopted to ensure that the detection accuracy is not affected by the temperature. In the case of simulating low temperature and high temperature experimental environments, the process of the second embodiment and the process of the third embodiment may be repeated for the shielding door to determine the cause of damage to the shielding door in the low temperature and high temperature environments.

[0024] In the fifth embodiment, a kinetic energy assembly is arranged on the transverse metal frame 3, and the kinetic energy assembly includes two groups of support frames 5 symmetrically fixedly installed at the two ends of the top of the transverse metal frame 3, a driving box 6 is fixedly installed on the top of the two groups of support frames 5, a first track 7 is installed on the driving box 6, a first support plate 8 is slidably connected to the first track 7, and two groups of driving mechanisms 9 are arranged on the first support plate 8. The running state of the first support plate 8 on the first track 7 is regulated by remote control of the two groups of driving mechanisms 9, and the dual driving mechanisms 9 ensure that the moving path of the first support plate 8 is stable, and a mechanical arm rod 35 is fixedly installed at the bottom of the first support plate 8. 35 is a prior art structure, which can realize multi-angle movement. A shaft ball 36 is arranged at the bottom of the mechanical arm 35, a frame 37 is installed on the shaft ball 36, a storage bin 38 is arranged in the frame 37, and a repair medium is stored in the storage bin 38. A metal frame 39 is fixedly installed at the bottom of the frame 37, and a repair hole 40 is fixedly installed at the bottom of the metal frame 39. The repair hole 40 is connected to the storage bin 38 through a pipeline. A heating structure and a cooling structure are arranged in the storage bin 38. The heating structure is remotely controlled to heat or cool the repair medium, so that the output repair medium can adapt to the low temperature environment or high temperature environment in the simulated environment. A pump is arranged in the storage bin 38, and the repair medium is transported from the storage bin 38 to the repair hole 40 through the pump, and finally discharged. Under normal conditions, the repair hole 40 faces downward. When the electromagnetic signal leakage of the shielding door is detected, the mechanical arm rod 35 and the shaft ball 36 are driven to operate synchronously to drive the frame 37 to move, and then drive the metal frame 39 to move, and finally drive the repair hole 40 to fit the gap of the shielding door, and start to output the repair medium to the gap, so as to temporarily improve the electromagnetic protection performance of the shielding door. This function can be used when the electromagnetic signal of the shielding door leaks in a small area; A porous plate 41 is provided on the outer contact surface of the repair hole 40, and a plurality of conveying holes 42 are evenly provided on the surface of the porous plate 41. The repair medium stored in the storage bin 38 needs to pass through the porous plate 41 during the discharge process through the repair hole 40, and is squeezed out through the conveying holes 42 on the porous plate 41, so that the repair medium is slowly and evenly smeared on the gap of the shielding door.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety performance detection device for a shielding door, characterized in that: include: A movable detection platform (1), the movable detection platform (1) being composed of four retractable columns (2) and having a detachable roller assembly at the bottom; The supporting platform is formed by a transverse metal frame (3) on the top of the column (2), wherein the transverse metal frame (3) and the column (2) are synchronously telescopically extended and retracted via a first telescopic assembly (4); A safety protection component, comprising an electrically controlled telescopic rod (10) and a shielding plate (11) on the front side of a movable detection platform, wherein the shielding plate (11) is composed of a second telescopic component (12) and a second support plate (16) alternately; The detection system comprises a first receiving sensor (13) on the shielding plate (11) and a second receiving sensor (14) inside the shielding door, and calculates the electromagnetic attenuation value by comparing signal strength; A dynamic pressure loading device is provided on a contact surface of the second support plate (16).

2. A safety performance detection device for a shielding door according to claim 1, characterized in that: A second track (15) is provided on the surface of the second support plate (16) of the shielding plate (11); a plurality of support seats (17) are slidably arranged in sequence from top to bottom on the second track (15); the support seats (17) can be raised and lowered along the second track (15); a first receiving sensor (13) is installed on the side wall of the support seat (17); and the matching height between the first receiving sensor (13) and the second receiving sensor (14) can be adjusted through remote control.

3. A safety performance detection device for a shielding door according to claim 2, characterized in that: A third telescopic assembly (18) is disposed on the side wall of the support seat (17), and a metal hammer block (19) is installed at the end of the third telescopic assembly (18); A fourth telescopic assembly (22) is distributed in an annular manner around the metal hammer block (19), and a pressure plate (23) is welded at the end thereof; Vibration sensors (20) are arranged at the four corners of the shielding door frame, and a deformation monitoring camera (21) is arranged at the top of the support seat (17); The dynamic pressure loading device executes a mechanical strength testing process, including pre-testing, dynamic loading and closed-loop feedback stages.

4. A safety performance detection device for a shielding door according to claim 3, characterized in that: In the closed-loop feedback stage: when the deformation monitoring camera (21) detects that the door gap deformation exceeds a first preset value, the system automatically reduces the impact frequency; When the second preset value is exceeded, an early warning is triggered, and when the third preset value is exceeded, loading is stopped and an audible and visual alarm is sounded.

5. A safety performance detection device for a shielding door according to claim 4, characterized in that: It also includes an electromagnetic shielding defect repair system: when an electromagnetic shielding unqualified area is detected, a metal hammer block (19) corresponding to the support seat (17) is driven to hammer the door gap at an increasing frequency; if the electromagnetic attenuation value a3 decreases with the increase of the hammering frequency, it is determined that the door gap sealing is unqualified; if a3 does not change, it is marked as a sensor failure.

6. A safety performance detection device for a shielding door according to claim 5, characterized in that: It also includes an environmental simulation system: a high and low temperature environmental simulation cabin (26) is installed on the top of the column (2) via an adjustable connecting rod (24), and a low temperature preset component (27) and a high temperature preset component (28) are arranged in the cabin; The high and low temperature environment simulation cabin (26) is adjusted in position by means of a fifth telescopic assembly (25) and a sixth telescopic assembly (29) to cover the shielding door detection area; The intelligent temperature control compensation system (30) maintains the first receiving sensor (13) consistent with the ambient temperature through a high temperature source structure (31) and a low temperature source structure (32).

7. A safety performance detection device for a shielding door according to claim 6, characterized in that: The environmental simulation system performs the following process: In a low temperature / high temperature environment, the signal generator emits a frequency band signal, and synchronously collects data through the first receiving sensor (13) and the second receiving sensor (14); A detection system is used to determine the electromagnetic shielding performance of shielding doors under extreme temperatures.

8. A safety performance detection device for a shielding door according to claim 7, characterized in that: Also includes automatic repair modules: A kinetic energy assembly, comprising a drive box (6) on a transverse metal frame (3), a first track (7) and a movable first support plate (8), wherein the first support plate (8) is driven by two sets of drive mechanisms (9); A mechanical arm rod (35) is fixedly mounted on the bottom of the first support plate (8); a shaft ball (36) is arranged at the bottom of the mechanical arm rod (35); a frame (37) is mounted on the shaft ball (36); a storage bin (38) is arranged in the frame (37); a repair medium is stored in the storage bin (38); a metal frame (39) is fixedly mounted on the bottom of the frame (37); a repair hole (40) is fixedly mounted on the bottom of the metal frame (39); and the repair hole (40) is connected to a pipe of the storage bin (38).

9. A safety performance detection device for a shielding door according to claim 8, characterized in that: The repair medium is delivered to the porous plate (41) by a pump, and delivery holes (42) are evenly distributed on the surface of the porous plate (41) for evenly applying the repair medium to the door gap.

10. A safety performance detection device for a shielding door according to claim 9, characterized in that: The detection system determines the safety performance of the shielding door through the following steps: The first receiving sensor (13) and the second receiving sensor (14) synchronously collect electromagnetic intensities a1 and a2; Calculate the electromagnetic attenuation value a3=|a1-a2|, if a3≥preset threshold a4, it is judged as qualified, otherwise it is unqualified.

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