Door and window safety performance detection device for constructional engineering

Abstract

The invention relates to a door and window safety performance detection device for constructional engineering, and belongs to the technical field of constructional engineering detection. The uniformly distributed load force application assembly can apply uniform or gradient change pressure to the whole surface of the door and window to simulate wind pressure; the concentrated load force application assembly can perform fixed-point impact on specific parts of doors and windows and simulate hard object impact or violent forcible entry; the wind pressure loading assembly applies uniform and gradient-adjustable wind pressure loads to the surfaces of doors and windows, simulates stress states under different wind levels and detects the air tightness of the doors and windows, and the rainfall simulation assembly simulates rainfall environments with different strengths to detect the water tightness of the doors and windows; the deformation of doors and windows, the stress of key parts of the doors and windows, the water leakage condition and the air leakage condition can be monitored, and the comprehensiveness and the real-time performance of detection data are ensured. The system can achieve the detection of multiple safety performance dimensions of the doors and windows of the constructional engineering, effectively improves the detection efficiency and precision, reduces the manual operation intervention, and provides a comprehensive and reliable data support for the safety performance evaluation of the doors and windows.

Description

Technical Field

[0001] This invention belongs to the field of building engineering testing technology, specifically relating to a device for testing the safety performance of doors and windows in building engineering. Background Technology

[0002] As a crucial component of building envelope, doors and windows directly impact a building's safety, energy efficiency, and occupant comfort. With increasing building age, aging and failure of sealing materials and hardware deformation in doors, windows, and curtain walls deteriorate, leading to increased heat convection between indoors and outdoors, increased building energy consumption, and negatively affecting indoor thermal environment and air quality. In severe cases, leaks and other serious problems may occur. Therefore, researching, testing, and evaluating the sealing performance and reliability of doors and windows is of great significance for ensuring building energy conservation and safety. The safety performance of doors and windows mainly includes airtightness, watertightness, wind pressure resistance, and impact resistance.

[0003] Currently, most door and window testing uses single-function testing equipment. For example, wind pressure resistance testing requires large pressure chambers, while impact resistance and durability testing require separate specialized equipment. The purchase and maintenance costs of multiple sets of specialized equipment are high. It is also necessary to move, install, and debug the same door or window between different devices, which consumes a lot of time and manpower. Furthermore, it is impossible to obtain comprehensive performance data of doors and windows under various complex working conditions in a single continuous test, resulting in an incomplete evaluation. Summary of the Invention

[0004] To overcome the problems of high purchase and maintenance costs of multiple sets of specialized equipment in the prior art; the need to move, install, and debug the same door and window between different devices, which consumes a lot of time and manpower; and the inability to obtain comprehensive performance data of doors and windows under multiple complex working conditions in a single continuous test, resulting in an insufficient evaluation, this invention provides a door and window safety performance testing device for building engineering.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A door and window safety performance testing device for building engineering mainly includes a testing platform 1, a door and window fixing frame 2, a multi-dimensional loading mechanism 3, and a testing chamber 4. The door and window fixing frame 2 is erected in the middle of the testing platform 1, and the multi-dimensional loading mechanism 3 and the testing chamber 4 are respectively installed on both sides of the door and window fixing frame 2. The multi-dimensional loading mechanism 3 includes a uniformly distributed load application component 31, a concentrated load application component 32, a wind pressure loading component 33, a rainfall simulation component 34, and a mounting frame 35. The mounting frame 35 is erected parallel to the door and window fixing frame 2 on the testing platform. 1. The mounting frame 35 is provided with first sliding grooves 36 at both the bottom and top. The uniformly distributed load application component 31 and the concentrated load application component 32 can be slidably installed in the first sliding grooves 36 at both the top and bottom ends. The mounting frame 35 is provided with a rack 37 at the bottom side. The uniformly distributed load application component 31 and the concentrated load application component 32 are both equipped with moving motors 38. The moving motors 38 are connected to the rack 37 through gear transmission. The wind pressure loading component 33 is installed on the testing platform 1 through a support base. The rainfall simulation component 34 is installed on the wind pressure loading component 33. The wind pressure loading component 33 and the rainfall simulation component 34 are installed facing the door and window fixing frame 2.

[0006] Furthermore, the testing chamber 4 is mounted on the testing platform 1 via a first sliding base. The testing chamber 4 includes a enclosure 41, an inflatable sealing ring 42, a data acquisition module, a central control module 43, and a result analysis module 44. The enclosure 41 is open at both ends, and the inflatable sealing ring 42 is embedded in the end of the enclosure 41 near the door and window fixing frame 2. The enclosure 41 and the door and window fixing frame 2 are sealed by the inflatable sealing ring 42. The data acquisition module, the central control module 43, and the result analysis module 44 are all installed inside the enclosure 41, and the data acquisition module and the result analysis module 44 are evenly electrically connected to the central control module 43. The data acquisition module includes a displacement sensor, a strain gauge, a high-definition camera, and an ultrasonic leak detector. The displacement sensor, strain gauge, high-definition camera, and ultrasonic leak detector are all electrically connected to the central control module 43. The door and window fixing frame 2, the multi-dimensional loading mechanism 3, and the moving motor 38 are all electrically connected to the central control module 43.

[0007] Furthermore, the door and window fixing frame 2 includes a fixing frame 21, a first motor lead screw assembly 22, support columns 23, a second motor lead screw assembly 24, and a support beam 25; the lead screws of the first motor lead screw assembly 22 and the second motor lead screw assembly 24 are both double-threaded lead screws with one end being a left-hand thread and the other end being a right-hand thread; the fixing frame 21 is erected in the middle of the testing table 1, and both the upper and lower ends of the fixing frame 21 are provided with transverse sliding grooves 26, the first motor lead screw assembly 22 is installed in the transverse sliding grooves 26, and the two support columns 23 are slidably installed in the transverse sliding grooves 26 at both ends, with the two ends of the two support columns 23 respectively threadedly connected to the left-hand thread section and the right-hand thread section of the first motor lead screw assembly 22; the inner side of the support column 23 is provided with a longitudinal sliding groove 2. 7. The second motor lead screw assembly 24 is installed in the longitudinal slide groove 27. The two support beams 25 are slidably installed in the longitudinal slide grooves 27 on both sides. The two support beams 25 are threadedly connected to the left-hand threaded section and the right-hand threaded section of the second motor lead screw assembly 24, respectively. The support beam 25 is a telescopic beam, including a square sleeve 28 and a telescopic rod 29. The telescopic rod 29 is telescopically inserted into the square sleeve 28. The inner rear edge of the support column 23 is provided with a door and window support part 11, and the inner front edge of the support column 23 is provided with a clamping and fixing device 12. The inner rear edges of the square sleeve 28 and the telescopic rod 29 are provided with door and window support plates 13, and the inner front edges of the square sleeve 28 and the telescopic rod 29 are provided with clamping and fixing devices 12.

[0008] Furthermore, baffles 14 are installed on the rear sides of the support column 23, the square sleeve 28, and the telescopic rod 29, and the baffles 14 on the square sleeve 28 and the telescopic rod 29 overlap each other.

[0009] Furthermore, the components of the door and window fixing frame 2 are sealed with rubber sheets and sealing strips.

[0010] Furthermore, the uniformly distributed load application component 31 includes a mounting frame 51, a telescopic arm 52, a pressure plate 53, an inflatable airbag 54, and a force sensor. The mounting frame 51 is slidably mounted on the mounting frame 35, the telescopic arm 52 is uniformly mounted on the mounting frame 51, the pressure plate 53 is mounted at the end of the telescopic arm 52, the inflatable airbag 54 is mounted on the side of the pressure plate 53 near the door or window, the sensor is mounted on the side of the inflatable airbag 54 facing the door or window, and the force sensor is electrically connected to the central control module 43. The inflation and deflation pipes of the inflatable airbag 54 are equipped with solenoid valves, which are electrically connected to the central control module 43.

[0011] Furthermore, the telescopic arm 52 includes a square fixing sleeve 55, a square telescopic rod 56, and a first hydraulic cylinder 57. The square fixing sleeve 55 is horizontally mounted on the mounting frame 51, and the square telescopic rod 56 is telescopically inserted into the square fixing sleeve 55. The two ends of the first hydraulic cylinder 57 are respectively mounted on the square fixing sleeve 55 and the square telescopic rod 56.

[0012] Furthermore, the concentrated load application component 32 includes a sliding frame 61, a lifting frame 5, a threaded rod 6, an impact load application component 62, and a continuous load application component 63. The sliding frame 61 is slidably mounted on the mounting frame 35, and guide grooves are provided on both sides of the sliding frame 61. The threaded rod 6 is installed in the guide grooves. The lifting frame 5 is slidably mounted in the guide grooves via a slider, and the slider is threadedly connected to the threaded rod 6. The threaded rod 6 is driven by a servo motor. The impact load application component 62 and the continuous load application component 63 are both mounted on the lifting frame 5. The impact load application component 62 includes a guide cylinder 64, an impact head 65, and an impact cylinder 66. The cylinder 64 is mounted on the sliding frame 61, the impact head 65 is retractably mounted inside the guide cylinder 64, and the impact cylinder 66 is mounted on the sliding frame 61, with the retractable end of the impact cylinder 66 connected to the impact head 65. The continuous load application component 63 includes a guide tube 67, a loading head 68, and a second hydraulic cylinder 69. The guide tube 67 is mounted on the sliding frame 61, the loading head 68 is retractably mounted inside the guide tube 67, and the second hydraulic cylinder 69 is mounted on the sliding frame 61, with the retractable end of the second hydraulic cylinder 69 connected to the loading head 68. Force sensors are installed on both the impact head 65 and the loading head 68, and the force sensors are electrically connected to the central control module 43.

[0013] Furthermore, the wind pressure loading component 33 includes a mounting cylinder 71 and a fan 72, with the fan 72 installed inside the mounting cylinder 71; the rainfall simulation component 34 is a water spray device, with nozzles 73 evenly installed along the outer wall of the mounting cylinder 71.

[0014] Furthermore, the mounting frame 35 is mounted on the testing table 1 via the second sliding base. The first sliding base and the second sliding base have the same structure, both including a sliding groove 16, a third motor lead screw assembly 17, and a sliding seat 18. The sliding groove 16 is mounted on the testing table 1, the third motor lead screw assembly 17 is mounted in the sliding groove 16, and the sliding seat 18 is slidably mounted in the sliding groove 16. The sliding seat 18 is threadedly connected to the third motor lead screw assembly 17.

[0015] Furthermore, the safety performance testing device for doors and windows in the building project is surrounded by a protective chamber constructed with steel structure and tempered glass on all sides and top.

[0016] The beneficial effects of this invention are: This invention integrates multiple testing functions into one unit, realizing "one-stop" testing of door and window safety performance, greatly improving testing efficiency and reducing labor and time costs; it realizes a fully automatic testing process through a central controller, automatically collects data and generates test reports, reduces human operation errors, and provides objective and accurate results; the adjustable installation frame and programmable loading mechanism enable it to adapt to most types and sizes of door and window products on the market, making it widely applicable. Attached Figure Description

[0017] Figure 1 This is a first-view perspective stereoscopic diagram of the present invention.

[0018] Figure 2 This is a second-view perspective stereoscopic diagram of the present invention.

[0019] Figure 3 This is a third-view stereoscopic diagram of the present invention.

[0020] Figure 4 This is a four-dimensional schematic diagram of the fourth perspective of the present invention.

[0021] Figure 5 This is a three-dimensional schematic diagram of the main axis of the door and window fixing frame of the present invention.

[0022] Figure 6 This is a rear axonometric three-dimensional schematic diagram of the door and window fixing frame of the present invention.

[0023] Figure 7 This is a three-dimensional schematic diagram of the uniformly distributed load application component of the present invention.

[0024] Figure 8 This is a three-dimensional schematic diagram of the concentrated load application component of the present invention.

[0025] Figure 9 This is the control flowchart of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding by those skilled in the art.

[0027] This invention discloses a safety performance testing device for doors and windows in building engineering. The device mainly includes a testing platform 1, a door and window fixing frame 2, a multi-dimensional loading mechanism 3, and a testing chamber 4. The door and window fixing frame 2 is erected in the middle of the testing platform 1 to securely fix the doors and windows, ensuring no displacement during testing. The multi-dimensional loading mechanism 3 and the testing chamber 4 are respectively installed on both sides of the door and window fixing frame 2. The multi-dimensional loading mechanism 3 includes a uniformly distributed load application component 31 and a concentrated load... The components include a force application component 32, a wind pressure loading component 33, a rainfall simulation component 34, and a mounting frame 35. The mounting frame 35 is installed vertically on the testing platform 1, parallel to the door and window fixing frame 2. The mounting frame 35 has first sliding grooves 36 at both its bottom and top. Both the uniformly distributed load application component 31 and the concentrated load application component 32 can be slidably installed within the first sliding grooves 36 at their upper and lower ends. A rack 37 is provided on the bottom side of the mounting frame 35. A moving motor 38 is installed on both the uniformly distributed load application component 31 and the concentrated load application component 32. 8 is connected to the gear and rack 37 for transmission. The wind pressure loading component 33 is installed on the test platform 1 through the support base. The rainfall simulation component 34 is installed on the wind pressure loading component 33. The wind pressure loading component 33 and the rainfall simulation component 34 are installed facing the door and window fixing frame 2. It integrates a uniform load application component 31 (which can apply uniform or gradient pressure to the entire surface of the door and window to simulate wind pressure), a concentrated load application component 32 (which can perform fixed-point impact on specific parts of the door and window (such as the center of the glass, the lock point position) to simulate hard object impact or violent demolition), a wind pressure loading component 33 (which applies uniform and gradient adjustable wind pressure load to the surface of the door and window to simulate the stress state under different wind force levels and to detect the air tightness of the door and window), and a rainfall simulation component 34 (which simulates rainfall environment of different intensities to detect the water tightness of the door and window), etc. The structure is compact and highly automated. It can realize the detection of multiple safety performance dimensions of building engineering doors and windows, effectively improve the detection efficiency and detection accuracy, reduce manual operation intervention, and provide comprehensive and reliable data support for the safety performance assessment of doors and windows.

[0028] The testing chamber 4 is mounted on the testing platform 1 via a first sliding base. The testing chamber 4 includes a enclosure 41, an inflatable sealing ring 42, a data acquisition module, a central control module 43, and a result analysis module 44. The enclosure 41 is open at both ends, and the inflatable sealing ring 42 is embedded in the end of the enclosure 41 near the door / window fixing frame 2. The enclosure 41 and the door / window fixing frame 2 are sealed by the inflatable sealing ring 42, ensuring the testing chamber 4 is relatively independent, especially when testing airtightness, reducing the impact of the environment on the test results. The data acquisition module, central control module 43, and result analysis module 44 are all installed inside the enclosure 41, and the data acquisition module and result analysis module 44 are evenly electrically connected to the central control module 43. The data acquisition module includes a displacement sensor (such as a laser displacement gauge), strain gauges, a high-definition camera, and an ultrasonic leak detector. Sensors, strain gauges, high-definition cameras, and ultrasonic leak detectors are all electrically connected to the central control module 43, monitoring the deformation of doors and windows, stress in key parts of doors and windows, water leakage, and air leakage, ensuring the comprehensiveness and real-time nature of the detection data. The door and window fixing frame 2, multi-dimensional loading mechanism 3, and moving motor 38 are all electrically connected to the central control module 43, allowing for preset detection parameters according to detection needs, automatic control of the collaborative work of each module, and avoidance of interference between different detection dimensions through a built-in synchronization control algorithm. The result analysis module is connected to the central control module, enabling the integration and analysis of the collected multi-dimensional data, generating reports on the wind pressure resistance, air tightness, water tightness, and structural strength of doors and windows, and presenting the detection results in the form of curves and charts through data visualization technology. It also supports the storage, traceability, and export of detection data.

[0029] The door and window fixing frame 2 includes a fixing frame 21, a first motor lead screw assembly 22, support columns 23, a second motor lead screw assembly 24, and support beams 25. The lead screws of both the first motor lead screw assembly 22 and the second motor lead screw assembly 24 are double-threaded lead screws with one end having a left-hand thread and the other end having a right-hand thread. The fixing frame 21 is erected in the middle of the testing platform 1. Both ends of the fixing frame 21 have transverse sliding grooves 26. The first motor lead screw assembly 22 is installed in the transverse sliding grooves 26. The two support columns 23 are slidably installed in the transverse sliding grooves 26, and their ends are threadedly connected to the left-hand and right-hand thread sections of the first motor lead screw assembly 22, respectively. The first motor lead screw assembly 22 can drive the two support columns 23 to move towards or away from each other, allowing for the installation and fixing of doors and windows of different widths. The inner side of the support column 23 has a longitudinal sliding groove 27, and the second motor lead screw assembly 24 is installed in the longitudinal sliding groove 27. The two support beams 25 are slidably installed in the longitudinal sliding grooves 27. The two support beams 25 are installed in the longitudinal sliding grooves 27 on both sides. The two ends of the support beams 25 are respectively threaded to the left-hand threaded section and the right-hand threaded section of the second motor screw assembly 24. The two support beams 25 can be driven to move simultaneously towards or away from each other through the second motor screw assembly 24, which can match the installation and fixation of doors and windows of different heights. The support beams 25 are telescopic beams that extend and retract with the movement of the two support columns 23. They include a square sleeve 28 and a telescopic rod 29. The telescopic rod 29 can be telescopically inserted into the square sleeve 28. The inner rear edge of the support column 23 is provided with a door and window support part 11, and the inner front edge of the support column 23 is provided with a clamping and fixing device 12. The inner rear edge of the square sleeve 28 and the telescopic rod 29 is provided with a door and window support plate 13, and the inner front edge of the square sleeve 28 and the telescopic rod 29 is provided with a clamping and fixing device 12 (which can be one of the screw top block assembly, hydraulic pressure block assembly, etc.). The clamping and fixing device 12 provides multi-point clamping and fixing to ensure the stability of the door and window installation.

[0030] The support column 23, the square sleeve 28, and the telescopic rod 29 are all equipped with baffles 14 on their rear sides. The baffles 14 on the square sleeve 28 and the telescopic rod 29 overlap each other. The enclosure 41 is sealed to the baffles 14 by an inflatable sealing ring 42. The baffles 14 increase the range that the enclosure 41 can abut, increase the adjustment range when installing doors and windows of different sizes, and increase the applicability of the equipment. The various components of the door and window fixing frame 2 are sealed with rubber sheets and sealing strips.

[0031] The uniformly distributed load application component 31 includes a mounting frame 51, a telescopic arm 52, a pressure plate 53, an inflatable airbag 54, and a force sensor. The mounting frame 51 is slidably mounted on the mounting frame 35. The telescopic arm 52 is uniformly mounted on the mounting frame 51. The pressure plate 53 is mounted at the end of the telescopic arm 52. The inflatable airbag 54 is mounted on the side of the pressure plate 53 closest to the door / window. The force sensor is mounted on the side of the inflatable airbag 54 facing the door / window and is electrically connected to the central control module 43. The inflation and deflation pipes of the inflatable airbag 54 are equipped with solenoid valves, which are electrically connected to the central control module 43. The load on the door / window is evenly distributed through the inflatable airbag 54. The inflatable airbags 54 deform by mutual compression, ensuring that the ends of the inflatable airbags 54 fill the door / window surface as much as possible, thus ensuring the uniformity of the load. At the same time, the force can be adjusted by extending the telescopic arm 52 or by the inflation amount.

[0032] The telescopic arm 52 includes a square fixing sleeve 55, a square telescopic rod 56, and a first hydraulic cylinder 57. The square fixing sleeve 55 is horizontally mounted on the mounting frame 51, and the square telescopic rod 56 is telescopically inserted into the square fixing sleeve 55. The two ends of the first hydraulic cylinder 57 are respectively mounted on the square fixing sleeve 55 and the square telescopic rod 56. The structure is simple and the operation is stable and reliable.

[0033] The concentrated load application component 32 includes a sliding frame 61, a lifting frame 5, a threaded rod 6, an impact load application component 62, and a continuous load application component 63. The sliding frame 61 is slidably mounted on the mounting frame 35. Guide grooves are provided on both sides of the sliding frame 61, and the threaded rod 6 is installed in the guide grooves. The lifting frame 5 is slidably mounted in the guide grooves via a slider, and the slider is threadedly connected to the threaded rod 6. The threaded rod 6 is driven by a servo motor. The impact load application component 62 and the continuous load application component 63 are both mounted on the lifting frame 5. The impact load application component 62 includes a guide cylinder 64, an impact head 65, and an impact cylinder 66. The guide cylinder 64 is mounted on the sliding frame 61, the impact head 65 is retractably mounted in the guide cylinder 64, and the impact cylinder 66 is mounted on the sliding frame 61. On the moving frame 61, the telescopic end of the impact cylinder 66 is connected to the impact head 65; the impact force is applied by the impact cylinder 66, which has a simple structure, convenient impact force adjustment and control, high precision, and stable operation; the continuous load force application component 63 includes a guide tube 67, a loading head 68, and a second hydraulic cylinder 69. The guide tube 67 is installed on the sliding frame 61, the loading head 68 is telescopically installed in the guide tube 67, and the second hydraulic cylinder 69 is installed on the sliding frame 61. The telescopic end of the second hydraulic cylinder 69 is connected to the loading head 68. Force sensors are installed on both the impact head 65 and the loading head 68, and the force sensors are electrically connected to the central control module 43; by slowly and continuously loading with the second hydraulic cylinder 69, the deformation of specific positions of doors and windows as external forces change can be detected.

[0034] The wind pressure loading component 33 includes a mounting cylinder 71 and a fan 72, with the fan 72 installed inside the mounting cylinder 71; the rainfall simulation component 34 is a water spraying device, with nozzles 73 evenly installed along the outer wall of the mounting cylinder 71; the fan 72 can apply a uniform and gradient-adjustable wind pressure load to the surface of doors and windows to simulate the stress state and airtightness under different wind force levels; the nozzles 73 can spray water onto doors and windows to simulate rainfall environments of different intensities to test the watertightness of doors and windows.

[0035] The mounting frame 35 is mounted on the testing table 1 via the second sliding base. The first sliding base and the second sliding base have the same structure, both including a slide groove 16, a third motor lead screw assembly 17, and a slide seat 18. The slide groove 16 is mounted on the testing table 1, the third motor lead screw assembly 17 is mounted in the slide groove 16, and the slide seat 18 is slidably mounted in the slide groove 16. The slide seat 18 is threadedly connected to the third motor lead screw assembly 17.

[0036] The safety performance testing device for doors and windows in the building project is protected by a steel structure and tempered glass enclosure on all four sides and the top.

[0037] Work process: The doors and windows are fixed by the door and window fixing bracket 2 to ensure no displacement during the testing process. The movement of the first sliding base ensures that the enclosure 41 is sealed against the baffle 14 through the inflatable sealing ring 42. The uniformly distributed load force application component 31 applies uniform or gradient pressure to the entire surface of the doors and windows to simulate wind pressure. The inflatable airbags 54 distribute the load evenly on the doors and windows. The inflatable airbags 54 deform by squeezing each other to ensure that the ends of the inflatable airbags 54 fill the door and window surface as much as possible, ensuring the uniformity of the load. At the same time, the force can be adjusted by extending the telescopic arm 52 or the inflation amount. The deformation of the doors and windows is monitored by the displacement sensor. The impact cylinder 66 applies impact force to specific parts of the doors and windows (such as the center of the glass, the lock point) to simulate the impact of hard objects or violent demolition. The displacement sensor (such as laser displacement) monitors the impact force. The system uses a combination of sensors (such as laser displacement gauges), strain gauges, and ultrasonic leak detectors to detect the deformation of doors and windows and the stress in key parts of the doors and windows. Through slow and continuous loading by a second hydraulic cylinder 69, it can detect the deformation of specific locations of doors and windows as external forces change. A uniform and gradient-adjustable wind pressure load is applied to the surface of the doors and windows by a wind pressure loading component 33 to simulate different wind levels. Displacement sensors (such as laser displacement gauges), strain gauges, and ultrasonic leak detectors are used to detect the deformation of doors and windows, the stress in key parts of the doors and windows, and airtightness. A rainfall simulation component 34 can simulate rainfall environments of different intensities. A high-definition camera can detect the watertightness of doors and windows. With a compact structure and high degree of automation, it can perform multi-dimensional safety performance testing of doors and windows in building engineering, effectively improving testing efficiency and accuracy, reducing manual intervention, and providing comprehensive and reliable data support for door and window safety performance assessment.

[0038] The door and window fixing frame 2, multi-dimensional loading mechanism 3, and moving motor 38 are all electrically connected to the central control module 43. The detection parameters can be preset according to the detection requirements, and the modules can be automatically controlled to work together. The built-in synchronous control algorithm avoids interference between different detection dimensions. The result analysis module is connected to the central control module and can integrate and analyze the collected multi-dimensional data to generate wind pressure resistance, air tightness, water tightness and structural strength assessment reports for doors and windows. The test results are presented in the form of curves and charts through data visualization technology. At the same time, it supports the storage, traceability and export of test data.

[0039] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A device for testing the safety performance of doors and windows in building construction, characterized in that: The aforementioned door and window safety performance testing device for building engineering includes a testing platform (1), a door and window fixing frame (2), a multi-dimensional loading mechanism (3), and a testing chamber (4). The door and window fixing frame (2) is installed upright in the middle of the testing platform (1), and the multi-dimensional loading mechanism (3) and the testing chamber (4) are respectively installed on both sides of the door and window fixing frame (2). The multi-dimensional loading mechanism (3) includes a uniformly distributed load application component (31), a concentrated load application component (32), a wind pressure loading component (33), a rainfall simulation component (34), and a mounting frame (35). The mounting frame (35) is installed upright on the testing platform (1) parallel to the door and window fixing frame (2), and the bottom and top of the mounting frame (35) are... Each part is provided with a first sliding groove (36). The upper and lower ends of the uniformly distributed load application component (31) and the concentrated load application component (32) can be slidably installed in the first sliding groove (36). The bottom side of the mounting frame (35) is provided with a rack (37). The uniformly distributed load application component (31) and the concentrated load application component (32) are both equipped with a moving motor (38). The moving motor (38) is connected to the rack (37) through a gear. The wind pressure loading component (33) is installed on the testing platform (1) through a support seat. The rainfall simulation component (34) is installed on the wind pressure loading component (33). The wind pressure loading component (33) and the rainfall simulation component (34) are installed facing the door and window fixing frame (2). The testing chamber (4) is mounted on the testing table (1) via a first sliding base. The testing chamber (4) includes a enclosure (41), an inflatable sealing ring (42), a data acquisition module, a central control module (43), and a result analysis module (44). The enclosure (41) is open at both ends, and the inflatable sealing ring (42) is embedded in the end of the enclosure (41) near the door and window fixing frame (2). The enclosure (41) and the door and window fixing frame (2) are sealed by the inflatable sealing ring (42). The data acquisition module, the central control module (43), and the result analysis module (44) are all connected. The analysis modules (44) are all installed inside the enclosure (41), and the data acquisition module and the result analysis module (44) are all electrically connected to the central control module (43). The data acquisition module includes a displacement sensor, a strain gauge, a high-definition camera, and an ultrasonic leak detector. The displacement sensor, strain gauge, high-definition camera, and ultrasonic leak detector are all electrically connected to the central control module (43). The door and window fixing frame (2), the multi-dimensional loading mechanism (3), and the moving motor (38) are all electrically connected to the central control module (43).

2. The door and window safety performance testing device for building engineering as described in claim 1, characterized in that: The door and window fixing frame (2) includes a fixing frame (21), a first motor screw assembly (22), a support column (23), a second motor screw assembly (24), and a support beam (25); the screws of the first motor screw assembly (22) and the second motor screw assembly (24) are both double-threaded screws with one end being a left-hand thread and the other end being a right-hand thread; the fixing frame (21) is installed upright in the middle of the testing table (1), and both the upper and lower ends of the fixing frame (21) are provided with transverse sliding grooves (26), the first motor screw assembly (22) is installed in the transverse sliding grooves (26), and the two support columns (23) are slidably installed in the transverse sliding grooves (26), and the two ends of the two support columns (23) are respectively threaded to the left-hand thread section and the right-hand thread section of the first motor screw assembly (22); the inner side of the support column (23) is provided with a longitudinal sliding groove (27), the first motor screw assembly (22) is provided with a support beam (25), the second ... The two motor screw assembly (24) is installed in the longitudinal slide groove (27). The two support beams (25) are slidably installed in the longitudinal slide grooves (27) on both sides. The two support beams (25) are threadedly connected to the left-hand thread section and the right-hand thread section of the second motor screw assembly (24) respectively. The support beam (25) is a telescopic beam, including a square sleeve (28) and a telescopic rod (29). The telescopic rod (29) is telescopically inserted into the square sleeve (28). The inner rear edge of the support column (23) is provided with a door and window support part (11). The inner front edge of the support column (23) is provided with a clamping and fixing device (12). The inner rear edge of the square sleeve (28) and the telescopic rod (29) is provided with a door and window support plate (13). The inner front edge of the square sleeve (28) and the telescopic rod (29) is provided with a clamping and fixing device (12).

3. The door and window safety performance testing device for building engineering as described in claim 2, characterized in that: The support column (23), the square sleeve (28) and the telescopic rod (29) are all equipped with baffles (14) on their rear sides, and the baffles (14) on the square sleeve (28) and the telescopic rod (29) overlap each other.

4. A door and window safety performance testing device for building engineering as described in claim 2 or 3, characterized in that: The components of the door and window fixing frame (2) are sealed with rubber plates and sealing strips.

5. The door and window safety performance testing device for building engineering as described in claim 4, characterized in that: The uniformly distributed load application component (31) includes a mounting frame (51), a telescopic arm (52), a pressure plate (53), an inflatable airbag (54), and a force sensor. The mounting frame (51) is slidably mounted on the mounting frame (35). The telescopic arm (52) is evenly mounted on the mounting frame (51). The pressure plate (53) is mounted at the end of the telescopic arm (52). The inflatable airbag (54) is mounted on the side of the pressure plate (53) near the door and window. The force sensor is mounted on the side of the inflatable airbag (54) facing the door and window. The force sensor is electrically connected to the central control module (43). The inflation and deflation pipes of the inflatable airbag (54) are equipped with solenoid valves, which are electrically connected to the central control module (43).

6. The door and window safety performance testing device for building engineering as described in claim 5, characterized in that: The telescopic arm (52) includes a square fixed sleeve (55), a square telescopic rod (56), and a first hydraulic cylinder (57). The square fixed sleeve (55) is horizontally mounted on the mounting frame (51), and the square telescopic rod (56) is telescopically inserted into the square fixed sleeve (55). The two ends of the first hydraulic cylinder (57) are respectively mounted on the square fixed sleeve (55) and the square telescopic rod (56).

7. A door and window safety performance testing device for building engineering as described in any one of claims 1-3, 5, and 6, characterized in that: The concentrated load application component (32) includes a sliding frame (61), a lifting frame (5), a threaded rod (6), an impact load application component (62), and a continuous load application component (63). The sliding frame (61) is slidably mounted on the mounting frame (35). Guide grooves are provided on both sides of the sliding frame (61). The threaded rod (6) is installed in the guide groove. The lifting frame (5) is slidably mounted in the guide groove via a slider. The slider is threadedly connected to the threaded rod (6). The threaded rod (6) is driven by a servo motor. The impact load application component (62) and the continuous load application component (63) are both mounted on the lifting frame (5). The impact load application component (62) includes a guide cylinder (64), an impact head (65), and an impact cylinder (66). The guide cylinder (64) The impact head (65) is telescopically mounted on the sliding frame (61) and the impact cylinder (66) is mounted on the sliding frame (61). The telescopic end of the impact cylinder (66) is connected to the impact head (65). The continuous load force application component (63) includes a guide tube (67), a loading head (68), and a second hydraulic cylinder (69). The guide tube (67) is mounted on the sliding frame (61), the loading head (68) is telescopically mounted on the guide tube (67), the second hydraulic cylinder (69) is mounted on the sliding frame (61), and the telescopic end of the second hydraulic cylinder (69) is connected to the loading head (68). Force sensors are installed on both the impact head (65) and the loading head (68). The force sensors are electrically connected to the central control module (43).

8. The door and window safety performance testing device for building engineering as described in claim 7, characterized in that: The wind pressure loading component (33) includes a mounting cylinder (71) and a fan (72), wherein the fan (72) is installed inside the mounting cylinder (71); the rainfall simulation component (34) is a water spray device, and nozzles (73) are evenly installed along the outer wall of the mounting cylinder (71).

9. A door and window safety performance testing device for building engineering as described in any one of claims 1-3, 5, 6, and 8, characterized in that: The mounting frame (35) is mounted on the testing table (1) via the second sliding base. The first sliding base and the second sliding base have the same structure, both including a sliding groove (16), a third motor screw assembly (17), and a sliding seat (18). The sliding groove (16) is mounted on the testing table (1), the third motor screw assembly (17) is mounted in the sliding groove (16), and the sliding seat (18) is slidably mounted in the sliding groove (16). The sliding seat (18) is threadedly connected to the third motor screw assembly (17).

10. The door and window safety performance testing device for building engineering as described in claim 9, characterized in that: The safety performance testing device for doors and windows in the building project is protected by a steel structure and tempered glass enclosure on all four sides and the top.

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