A door and window sealing detection device with pressure feedback function

Abstract

The present invention discloses a door and window sealing detection device with a pressure feedback function, which relates to the field of detection technology. The door and window sealing detection device comprises a fan, a detector, an air supply pipe, a pressure measuring tube and a sealing box. The air outlet of the fan is connected with the detector, one end of the air supply pipe is connected with the air outlet of the detector, the other end of the air supply pipe is connected with the sealing box, one end of the pressure measuring tube is connected with the detection end of the detector, and the other end of the pressure measuring tube is connected with the sealing box. The sealing box is sleeved on the doors and windows that need to be detected, and a positioning mechanism is provided in the sealing box, which is used to identify leakage points. During detection, the sealing box is first sleeved on the windows that need to be detected, and then the detector is started. The detector will control the fan to start and inject air into the sealing box through the air supply pipe. The fan will be turned off after reaching a certain pressure. The pressure difference between the outside and inside of the door and window is detected by the pressure measuring tube to determine the sealing performance.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, in particular to a door and window sealing detection device with a pressure feedback function. Background Art

[0002] Door and window sealing test devices are typically used to test the sealing performance of manufactured doors and windows to ensure they offer excellent sound insulation, heat insulation, wind resistance, and waterproofing. Their design utilizes a pressure sensor and control system to provide real-time monitoring and feedback on sealing status.

[0003] However, in existing technologies, the sealing performance of doors and windows is mostly tested using the overall pressure difference method, that is, after pressurizing a closed space, the overall sealing performance is determined by monitoring the pressure decay rate. However, this method has the following limitations:

[0004] Difficulty in locating leak points: Traditional detection methods can only evaluate the overall airtightness of doors and windows, and cannot accurately locate the leak position at the connection between the frame and the glass, which is inefficient; Insufficient dynamic feedback: Most devices rely on static pressure detection, which cannot provide real-time feedback on pressure changes at the leak point, making it difficult to quantify the degree of leakage, let alone determine the size of the leak point; Lack of environmental simulation: In actual use, doors and windows are often affected by wind vibrations, and sealing strips may deform or loosen due to long-term vibrations. Existing technologies lack the ability to simulate the vibration environment, resulting in deviations between the test results and actual working conditions.

[0005] For example, existing patents (such as CN220063311U) propose to use an air pump and a pressure gauge to determine whether the air tightness is qualified by the change of the pressure gauge value, but it is impossible to accurately locate the leakage point. Summary of the Invention

[0006] The object of the present invention is to provide a door and window sealing detection device with a pressure feedback function to solve the problems raised in the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a door and window sealing detection device includes a fan, a detector, an air supply pipe, a pressure measuring tube and a sealing box, the air outlet of the fan is connected to the detector, one end of the air supply pipe is connected to the air outlet of the detector, the other end of the air supply pipe is connected to the sealing box, one end of the pressure measuring tube is connected to the detection end of the detector, the other end of the pressure measuring tube is connected to the sealing box, the sealing box is mounted on the doors and windows that need to be detected, and a positioning mechanism is provided in the sealing box, which is used to identify leakage points.

[0008] During the inspection, first put the sealing box on the window that needs to be inspected. The sealing box is equipped with sealing rings around it to ensure air tightness. Then start the detector. The detector will control the fan to start and inject air into the sealing box through the air supply pipe. After reaching a certain pressure, the fan will be turned off. Since a sealed space is formed between the sealing box and the window, the sealing can be judged by detecting the pressure difference between the outside and inside of the door and window through the pressure measuring tube. The detector has a built-in pressure sensor that can read the pressure in the pressure measuring tube in real time and feed the pressure back to the detector, thereby realizing real-time detection of sealing.

[0009] Furthermore, a working chamber is provided in the sealed box, and several groups of positioning mechanisms are arranged in the working chamber. Several positioning mechanisms are arranged at the junction between the window frame and the glass. The positioning mechanism includes a protective shell, a marking component, a detection component and an opening and closing component. The protective shell is fastened to the inner wall of the working chamber, and a stepped surface is provided at one end of the protective shell close to the window. The marking component is fastened to the protective shell, and the detection component is fastened to the protective shell. The detection component is used to detect the pressure difference between the inner cavity of the protective shell and the working chamber. The opening and closing component is fastened to the protective shell, and the opening and closing component is used to control whether the inner cavity of the protective shell and the working chamber are connected or not.

[0010] The leakage point of the window is generally located at the connection between the frame and the glass. The frame and the glass are sealed by a sealing strip. If the sealing strip is not installed in place, a leakage point will appear. The positioning mechanism is fixed on the sealing box, and the layout orientation matches the shape of the window. When the sealing box is fitted on the window, several positioning mechanisms will automatically fit to the connection between the frame and the glass, thereby locating the leakage point; the stepped surface set at one end of the protective shell matches the shape of the connection between the frame and the glass, and can fit to the connection between the two, thereby ensuring that a closed space is formed between the inner cavity of the protective shell and the window. When the detector is During the sealing test, the opening and closing component is in the open state, and the inner cavity of the protective shell is connected to the working cavity. At this time, the pressure in the inner cavity of the protective shell is the same as the pressure in the working cavity. When the detector detects that the sealing of the window is unqualified, the opening and closing component is closed. At this time, the inner cavity of the protective shell is not connected to the working cavity. The protective shell is in the leakage position. Due to gas leakage, the inner cavity pressure of the protective shell here is lower than the pressure in the working cavity. By detecting this pressure difference through the detection component, it can be determined how the leakage occurred. Then, the marking component is used to mark this position to achieve visual marking of the leakage point, which is convenient for subsequent processing.

[0011] Furthermore, the detection assembly includes a piston, a fixed spring and a magnetic rod. A slide groove is provided on the protective shell, the slide groove connects the working chamber and the inner cavity of the protective shell, the piston is slidably connected to the slide groove, one end of the fixed spring is tightly connected to the piston, the other end of the fixed spring is tightly connected to the upper end of the slide groove, the magnetic rod is tightly connected to the piston, and a coil is wound around one end of the slide groove close to the magnetic rod, and the coil is externally connected to the detection system;

[0012] During detection: the magnetic rod is inserted into the coil.

[0013] When a certain positioning mechanism is located at the leakage point, the gas pressure in the inner cavity of the protective shell at this position will gradually decrease, and the larger the leakage point, the faster the gas pressure decreases, while the pressure in the working chamber remains unchanged, that is, the pressure in the inner cavity of the protective shell and the pressure in the working chamber produce a pressure difference. Under the action of the pressure difference, the piston will be pushed to move along the slide groove to the side of the inner cavity of the protective shell, the fixed spring will be stretched, and the magnetic rod will be inserted into the coil at a certain speed, cutting the magnetic lines of force, thereby generating an induced current. The detection system can detect this current and locate the leakage point; and because the larger the leakage point, the faster the gas pressure decreases, the faster the magnetic rod is inserted into the coil, and the greater the induced current generated, that is, the greater the induced current detected by the detection system, the larger the leakage point.

[0014] Furthermore, the marking component includes a guide sleeve, an adjusting electromagnet, a repelling magnet, a slider and a connecting rod. The guide sleeve is tightly connected to the protective shell, a guide groove is provided in the guide sleeve, the adjusting electromagnet is tightly connected to the upper inner wall of the guide groove, the adjusting electromagnet is electrically connected to the detection system, the repelling magnet and the adjusting electromagnet are arranged opposite to each other, and the opposite ends of the repelling magnet and the adjusting electromagnet are poles of the same name, the repelling magnet is tightly connected to the slider, the slider is slidably connected to the guide groove, the connecting rod is tightly connected to the slider, a supporting spring is provided on the connecting rod, and an elastic contact is provided at the end of the connecting rod away from the slider, and the elastic contact is coated with marking ink.

[0015] When the detection component at a certain position detects a leakage point, the detection system starts the adjustment electromagnet in the marking component at the same position. Under the action of magnetic force, the adjustment electromagnet will generate a certain repulsive force on the repulsive magnet, so that the slider connected to the repulsive magnet will move along the guide groove toward the window, and the supporting spring will be compressed. Under the transmission action of the connecting rod, the elastic contact with marking ink will abut against the surface of the window, causing deformation, leaving a visual mark on the window; and, according to the characteristics of the detection system that the greater the induced current generated by the coil, the larger the leakage point, the greater the current transmitted to the adjustment electromagnet by the detection system, the greater the magnetic force of the adjustment electromagnet, the longer the distance the slider moves, the larger the range of deformation of the elastic contact, and the larger the marking range generated on the window, that is, the size of the marking point is automatically adjusted according to the size of the leakage point. The larger the leakage point, the larger the marking point.

[0016] Furthermore, the opening and closing assembly includes a sealing cover, an annular electromagnet, an attraction ring and an adjustment spring. A connecting port and a support groove are provided on the protective shell. The sealing cover is slidably connected to the connecting port. The annular electromagnet is firmly connected to the sealing cover. The annular electromagnet is electrically connected to the detection system. The attraction ring is firmly connected to the protective shell. The attraction ring and the annular electromagnet are arranged facing each other. The attraction ring is made of ferromagnetic material. A plurality of connecting columns are circumferentially arranged on the sealing cover. The plurality of connecting columns are slidably connected to the support groove. One end of the adjustment spring is firmly connected to the bottom end of the connecting column, and the other end of the adjustment spring is firmly connected to the inner wall of the support groove.

[0017] When closed: the annular electromagnet contacts the attraction ring.

[0018] During the sealing test, the sealing cover maintains the opening of the communication port under the elastic force of the adjusting spring. At this time, the inner cavity of the protective shell is connected to the working cavity. When the detector detects that the sealing is unqualified, the detection system will start the annular electromagnet. Since the attraction ring is made of ferromagnetic material, the energized annular electromagnet will be adsorbed to the attraction ring, thereby driving the connecting columns around the sealing cover to slide along the support groove. The adjusting spring is compressed and the sealing cover closes the communication port, so that the inner cavity of the protective shell is in a sealed state, which is convenient for locating the subsequent leakage point.

[0019] Furthermore, the elastic contact is made of rubber.

[0020] The elastic contacts made of rubber are soft and can avoid scratching the glass during positioning.

[0021] Furthermore, a vibration mechanism is provided at the connection point between the air supply pipe and the sealing box, and the vibration mechanism is used to simulate the vibration that the doors and windows are subjected to when in use.

[0022] When the windows are in use, they will be affected by the wind and produce certain vibrations. The vibration mechanism is used to simulate the use environment to test the sealing performance of the windows in various environments. The vibration mechanism uses the wind force when the air is injected into the air supply pipe as the power source for driving.

[0023] Furthermore, the vibration mechanism includes a connecting sleeve, a bracket, a fan blade and a striking rod, the connecting sleeve is tightly connected to the sealing box, a wave groove is provided on the connecting sleeve, the bracket is slidably connected to the wave groove, the fan blade is tightly connected to the bracket, the striking rod is tightly connected to the bracket, and two striking rods are provided, and the two striking rods are respectively arranged on both sides of the bracket;

[0024] When air is introduced: two impact rods impact the surface of the object to be tested alternately.

[0025] When the air supply pipe is supplying air, the air flow will flow into the working chamber of the sealed box at a certain flow rate. The flowing air flow will impact the fan blades, causing the fan blades to be subjected to a certain deflection force. The fan blades are fixed on the bracket, which will drive the bracket to slide along the wave groove on the connecting sleeve, so that the movement trajectory of the bracket fits the wave groove, which means that the impact rods on both sides of the bracket will alternately hit the surface of the window, thereby generating vibration, thereby simulating the influence of wind on the window during use.

[0026] Furthermore, guide columns are arranged on both sides of the bracket, and the guide columns are slidably connected to the wave groove.

[0027] The shape of the guide column matches the cross section of the wave groove, thereby making the movement of the bracket along the wave groove smoother.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. By arranging several positioning mechanisms that match the shape of the window on the sealing box, the leakage point of the window can be automatically located; by utilizing the characteristic that the pressure at the leakage point will decrease, through the cooperation between the piston, magnetic rod, fixed spring and coil, under the action of pressure difference, the piston will be pushed along the slide groove to the inner cavity of the protective shell. The fixed spring is stretched by force, and the magnetic rod is inserted into the coil at a certain speed, cutting the magnetic lines of force, thereby generating an induced current. The larger the leakage point, the faster the gas pressure decreases, the faster the magnetic rod is inserted into the coil, and the greater the induced current generated. That is, the larger the induced current detected by the detection system, the larger the leakage point, thus realizing automatic detection of the size and position of the leakage point.

[0030] 2. By adjusting the coordination between the electromagnet and the repelling magnet, the greater the current transmitted by the control system to the adjusting electromagnet, the longer the distance the slider moves, the greater the range of deformation of the elastic contact, and the larger the range of the mark produced on the window. That is, the size of the mark point is automatically adjusted according to the size of the leakage point. The larger the leakage point, the larger the mark point.

[0031] 3. By utilizing the wind force when the air is supplied by the air supply pipe during the test, the impact force of the airflow is converted into the power of the bracket movement through the cooperation between the fan blades, bracket and spiral groove, thereby driving the impact rods on both sides of the bracket to hit the surface of the window alternately. Without the need for additional power, the impact of wind force on the window during use is simulated. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a partial cross-sectional view of the sealing box;

[0034] Figure 3It is a partial cross-sectional view of the positioning mechanism;

[0035] Figure 4 for Figure 3 A local enlarged view of point A;

[0036] Figure 5 for Figure 3 A partial enlarged view of point B;

[0037] Figure 6 It is a schematic diagram of the vibration mechanism of the present invention;

[0038] Figure 7 for Figure 6 A partial enlarged view of point C.

[0039] Figure: 1. Fan; 2. Detector; 3. Air supply pipe; 4. Pressure measuring tube; 5. Sealing box; 51. Working chamber; 6. Positioning mechanism; 61. Protective shell; 611. Step surface; 612. Slide groove; 613. Connecting port; 614. Support groove; 62. Marking assembly; 621. Guide sleeve; 6211. Guide groove; 622. Adjusting electromagnet; 623. Repelling magnet; 624. Slider; 625. Connecting rod; 626. Support spring ; 627, elastic contact; 63, detection component; 631, piston; 632, fixing spring; 633, magnetic rod; 634, coil; 64, opening and closing component; 641, sealing cover; 6411, connecting column; 642, annular electromagnet; 643, attraction ring; 644, adjusting spring; 7, vibration mechanism; 71, connecting sleeve; 711, wave groove; 72, bracket; 721, guide column; 73, fan blade; 74, impact rod. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example: Figure 1-Figure 7 As shown, the present invention provides a technical solution for a door and window sealing detection device with a pressure feedback function, the door and window sealing detection device includes a fan 1, a detector 2, an air supply pipe 3, a pressure measuring tube 4 and a sealing box 5, the air outlet of the fan 1 is connected to the detector 2, one end of the air supply pipe 3 is connected to the air outlet of the detector 2, the other end of the air supply pipe 3 is connected to the sealing box 5, one end of the pressure measuring tube 4 is connected to the detection end of the detector 2, and the other end of the pressure measuring tube 4 is connected to the sealing box 5, the sealing box 5 is mounted on the doors and windows that need to be detected, and a positioning mechanism 6 is provided in the sealing box 5, and the positioning mechanism 6 is used to identify the leakage point.

[0042] During testing, first put the sealing box 5 on the window that needs to be tested. The sealing box 5 is equipped with sealing rings around it to ensure air tightness. Then start the detector 2. The detector 2 will control the fan 1 to start and inject air into the sealing box 5 through the air supply pipe 3. After reaching a certain pressure, the fan 1 will be turned off. Since a sealed space is formed between the sealing box 5 and the window, the sealing can be judged by detecting the pressure difference between the outside and inside of the door and window through the pressure measuring tube 4. The detector 2 has a built-in pressure sensor, which can read the pressure in the pressure measuring tube 4 in real time and feed the pressure back to the detector 2, thereby realizing real-time detection of sealing.

[0043] A working chamber 51 is provided in the sealed box 5, and several groups of positioning mechanisms 6 are arranged in the working chamber 51. Several positioning mechanisms 6 are arranged at the junction between the window frame and the glass. The positioning mechanism 6 includes a protective shell 61, a marking component 62, a detection component 63 and an opening and closing component 64. The protective shell 61 is fastened to the inner wall of the working chamber 51, and a stepped surface 611 is provided at one end of the protective shell 61 close to the window. The marking component 62 is fastened to the protective shell 61, and the detection component 63 is fastened to the protective shell 61. The detection component 63 is used to detect the pressure difference between the inner cavity of the protective shell 61 and the working chamber 51. The opening and closing component 64 is fastened to the protective shell 61, and the opening and closing component 64 is used to control whether the inner cavity of the protective shell 61 and the working chamber 51 are connected or not.

[0044] The leakage point of the window is generally located at the connection between the frame and the glass. The frame and the glass are sealed by a sealing strip. If the sealing strip is not installed in place, a leakage point will appear. The positioning mechanism 6 is fixed on the sealing box 5, and the arrangement orientation matches the shape of the window. When the sealing box 5 is fitted onto the window, several positioning mechanisms 6 will automatically fit to the connection between the frame and the glass, thereby locating the leakage point; the stepped surface 611 set at one end of the protective shell 61 matches the shape of the connection between the frame and the glass, and can fit to the connection between the two, thereby ensuring that a closed space is formed between the inner cavity of the protective shell 61 and the window. When the detector 2 performs a sealing test, The opening and closing component 64 is in the open state, and the inner cavity of the protective shell 61 is connected to the working cavity 51. At this time, the pressure in the inner cavity of the protective shell 61 is the same as the pressure in the working cavity 51. When the detector 2 detects that the sealing of the window is unqualified, the opening and closing component 64 is closed. At this time, the inner cavity of the protective shell 61 is not connected to the working cavity 51. The protective shell 61 is in the leakage position. Due to gas leakage, the inner cavity pressure of the protective shell 61 here is lower than the pressure in the working cavity 51. By detecting this pressure difference through the detection component 63, it can be determined how the leakage occurred, and then the marking component 62 is used to mark this position to achieve visual marking of the leakage point, which is convenient for subsequent processing.

[0045] The detection assembly 63 includes a piston 631, a fixed spring 632 and a magnetic rod 633. A slide groove 612 is provided on the protective shell 61. The slide groove 612 connects the working chamber 51 and the inner cavity of the protective shell 61. The piston 631 is slidably connected to the slide groove 612. One end of the fixed spring 632 is tightly connected to the piston 631, and the other end of the fixed spring 632 is tightly connected to the upper end of the slide groove 612. The magnetic rod 633 is tightly connected to the piston 631. A coil 634 is wound around one end of the slide groove 612 near the magnetic rod 633. The coil 634 is externally connected to the detection system.

[0046] During detection: the magnetic rod 633 is inserted into the coil 634.

[0047] When a certain positioning mechanism 6 is located at a leakage point, the gas pressure in the inner cavity of the protective shell 61 at this position will gradually decrease, and the larger the leakage point, the faster the gas pressure decreases, while the pressure in the working chamber 51 remains unchanged, that is, a pressure difference is generated between the pressure in the inner cavity of the protective shell 61 and the pressure in the working chamber 51. Under the action of the pressure difference, the piston 631 will be pushed to move along the slide groove 612 toward the inner cavity side of the protective shell 61, the fixed spring 632 will be stretched, and the magnetic rod 633 will be inserted into the coil 634 at a certain speed, cutting the magnetic lines of force, thereby generating an induced current. The detection system can detect this current and locate the leakage point; and because the larger the leakage point, the faster the gas pressure decreases, the faster the magnetic rod 633 is inserted into the coil 634, and the greater the induced current generated, that is, the greater the induced current detected by the detection system, the larger the leakage point.

[0048] The marking assembly 62 includes a guide sleeve 621, an adjusting electromagnet 622, a repelling magnet 623, a slider 624 and a connecting rod 625. The guide sleeve 621 is tightly connected to the protective shell 61. A guide groove 6211 is provided in the guide sleeve 621. The adjusting electromagnet 622 is tightly connected to the inner wall of the upper end of the guide groove 6211. The adjusting electromagnet 622 is electrically connected to the detection system. The repelling magnet 623 and the adjusting electromagnet 622 are arranged opposite to each other. The facing ends of the repelling magnet 623 and the adjusting electromagnet 622 are the same magnetic poles. The repelling magnet 623 is tightly connected to the slider 624. The slider 624 is slidingly connected to the guide groove 6211. The connecting rod 625 is tightly connected to the slider 624. A supporting spring 626 is provided on the connecting rod 625. An elastic contact 627 is provided at the end of the connecting rod 625 away from the slider 624. The elastic contact 627 is coated with marking ink.

[0049] When the detection component 63 at a certain position detects a leak point, the detection system activates the adjustment electromagnet 622 in the marking component 62 at the same position. Under the action of the magnetic force, the adjustment electromagnet 622 will generate a certain repulsive force on the repulsive magnet 623, causing the slider 624 connected to the repulsive magnet 623 to move along the guide groove 6211 toward the window, and the support spring 626 is compressed. Under the transmission action of the connecting rod 625, the elastic contact 627 with marking ink will abut the surface of the window, causing deformation, leaving a visual mark on the window; and, according to the characteristic that the detection system detects that the greater the induced current generated by the coil 634, the larger the leak point, the greater the current transmitted to the adjustment electromagnet 622 by the detection system, the greater the magnetic force of the adjustment electromagnet 622, the longer the distance the slider 624 moves, the larger the range of deformation of the elastic contact 627, and the larger the range of the mark produced on the window. In other words, the size of the mark point is automatically adjusted according to the size of the leak point. The larger the leak point, the larger the mark point.

[0050] The opening and closing assembly 64 includes a sealing cover 641, an annular electromagnet 642, an attraction ring 643 and an adjustment spring 644. A communication port 613 and a support groove 614 are provided on the protective shell 61. The sealing cover 641 is slidably connected to the communication port 613. The annular electromagnet 642 is firmly connected to the sealing cover 641. The annular electromagnet 642 is electrically connected to the detection system. The attraction ring 643 is firmly connected to the protective shell 61. The attraction ring 643 and the annular electromagnet 642 are arranged facing each other. The attraction ring 643 is made of ferromagnetic material. A plurality of connecting columns 6411 are circumferentially arranged on the sealing cover 641. The plurality of connecting columns 6411 are slidably connected to the support groove 614. One end of the adjustment spring 644 is firmly connected to the bottom end of the connecting column 6411, and the other end of the adjustment spring 644 is firmly connected to the inner wall of the support groove 614.

[0051] When closed: the annular electromagnet 642 contacts the attraction ring 643 .

[0052] When performing a sealing test, the sealing cover 641 maintains the opening of the connecting port 613 under the elastic force of the adjusting spring 644. At this time, the inner cavity of the protective shell 61 is connected to the working cavity 51; when the detector 2 detects that the sealing is unqualified, the detection system will start the annular electromagnet 642. Since the attraction ring 643 is made of ferromagnetic material, the energized annular electromagnet 642 will be adsorbed onto the attraction ring 643, thereby driving the connecting columns 6411 around the sealing cover 641 to slide along the support groove 614, and the adjusting spring 644 is compressed by force, and the sealing cover 641 closes the connecting port 613, so that the inner cavity of the protective shell 61 is in a sealed state, which is convenient for locating the subsequent leakage point.

[0053] The elastic contact 627 is made of rubber.

[0054] The elastic contact 627 made of rubber is relatively soft and can avoid scratching the glass during positioning.

[0055] A vibration mechanism 7 is provided at the connection point between the air supply pipe 3 and the sealing box 5. The vibration mechanism 7 is used to simulate the vibration that the doors and windows are subjected to when in use.

[0056] When the window is in use, it will be affected by the wind and produce a certain amount of vibration. The vibration mechanism 7 is used to simulate the use environment to test the sealing performance of the window under various environments. The vibration mechanism 7 uses the wind force when the air supply pipe 3 is injected with air as the power source for driving.

[0057] The vibration mechanism 7 includes a connecting sleeve 71, a bracket 72, a fan blade 73 and a striking rod 74. The connecting sleeve 71 is tightly connected to the sealing box 5. The connecting sleeve 71 is provided with a wave groove 711. The bracket 72 is slidably connected to the wave groove 711. The fan blade 73 is tightly connected to the bracket 72. The striking rod 74 is tightly connected to the bracket 72. There are two striking rods 74, which are respectively arranged on both sides of the bracket 72.

[0058] During air intake: the two impact rods 74 impact the surface of the object to be tested alternately.

[0059] When the air supply pipe 3 is supplying air, the air flow will flow into the working chamber 51 of the sealing box 5 at a certain flow rate, and the flowing air flow will impact the fan blades 73, causing the fan blades 73 to be subjected to a certain deflection force. The fan blades 73 are fixed on the bracket 72, which will drive the bracket 72 to slide along the wave groove 711 on the connecting sleeve 71, so that the movement trajectory of the bracket 72 fits the wave groove 711, which means that the impact rods 74 on both sides of the bracket 72 will alternately hit the surface of the window, thereby generating vibration, thereby realizing the simulation of the influence of wind on the window during use.

[0060] Guide posts 721 are arranged on both sides of the bracket 72 , and the guide posts 721 are slidably connected to the wave groove 711 .

[0061] The shape of the guide post 721 matches the cross section of the wave groove 711 , thereby making the movement of the bracket 72 along the wave groove 711 smoother.

[0062] The working principle of the present invention is as follows: during testing, the sealing box 5 is first placed on the window to be tested, and then the detector 2 is started. The detector 2 will control the fan 1 to start and inject air into the sealing box 5 through the air supply pipe 3. After reaching a certain pressure, the fan 1 is turned off, and the pressure difference between the outside and the inside of the door and window is detected by the pressure measuring tube 4 to determine the sealing performance; when the sealing box 5 is fitted onto the window, several positioning mechanisms 6 will automatically fit to the connection between the frame and the glass, thereby locating the leakage point. When a certain positioning mechanism 6 is located at the leakage point, the gas pressure in the inner cavity of the protective shell 61 at this position will gradually decrease, and under the action of the pressure difference, the piston 631 will be pushed along the slide groove 612 to the inner cavity of the protective shell 61. The detection system starts the adjustment electromagnet 622 in the same position marking component 62. Under the action of the magnetic force, the adjustment electromagnet 622 will generate a certain repulsive force on the repulsive magnet 623, so that the slider 624 connected to the repulsive magnet 623 will move along the guide groove 6211 toward the window, and the support spring 626 will be compressed. Under the transmission action of the connecting rod 625, the elastic contact 627 with marking ink will abut the surface of the window, resulting in deformation, leaving a visual mark on the window.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A door and window sealing detection device with pressure feedback function, characterized by: The door and window sealing detection device comprises a fan (1), a detector (2), an air supply pipe (3), a pressure measuring tube (4) and a sealing box (5); the air outlet of the fan (1) is connected to the detector (2); one end of the air supply pipe (3) is connected to the air outlet of the detector (2); the other end of the air supply pipe (3) is connected to the sealing box (5); one end of the pressure measuring tube (4) is connected to the detection end of the detector (2); the other end of the pressure measuring tube (4) is connected to the sealing box (5); the sealing box (5) is sleeved on the door and window to be detected; a positioning mechanism (6) is provided in the sealing box (5); the positioning mechanism (6) is used to identify the leakage point; A working chamber (51) is provided in the sealing box (5), and a plurality of positioning mechanisms (6) are arranged in the working chamber (51). The plurality of positioning mechanisms (6) are arranged at the junction between the window frame and the glass. The positioning mechanism (6) comprises a protective shell (61), a marking component (62), a detection component (63) and an opening and closing component (64). The protective shell (61) is fastened to the inner wall of the working chamber (51), and a stepped surface (611) is provided at one end of the protective shell (61) close to the window. The marking component (62) is fastened to the protective shell (61), and the detection component (63) is fastened to the protective shell (61). The detection component (63) is used to detect the pressure difference between the inner chamber of the protective shell (61) and the working chamber (51). The opening and closing component (64) is fastened to the protective shell (61), and the opening and closing component (64) is used to control whether the inner chamber of the protective shell (61) and the working chamber (51) are connected. The detection assembly (63) includes a piston (631), a fixed spring (632) and a magnetic rod (633); a slide groove (612) is provided on the protective shell (61); the slide groove (612) connects the working chamber (51) and the inner cavity of the protective shell (61); the piston (631) is slidably connected to the slide groove (612); one end of the fixed spring (632) is fastened to the piston (631); the other end of the fixed spring (632) is fastened to the upper end of the slide groove (612); the magnetic rod (633) is fastened to the piston (631); a coil (634) is wound around one end of the slide groove (612) close to the magnetic rod (633); the coil (634) is externally connected to the detection system; During detection: the magnetic rod (633) is inserted into the coil (634).

2. The door and window sealing detection device with pressure feedback function according to claim 1, characterized in that: The marking assembly (62) includes a guide sleeve (621), an adjusting electromagnet (622), a repelling magnet (623), a slider (624) and a connecting rod (625), wherein the guide sleeve (621) is fastened to the protective shell (61), a guide groove (6211) is provided in the guide sleeve (621), the adjusting electromagnet (622) is fastened to the inner wall of the upper end of the guide groove (6211), the adjusting electromagnet (622) is electrically connected to the detection system, the repelling magnet (623) is connected to the adjusting electromagnet (622), and the repelling magnet (623) is connected to the adjusting electromagnet (622). ) are arranged facing each other, the repelling magnet (623) and the regulating electromagnet (622) have the same magnetic poles at their facing ends, the repelling magnet (623) is firmly connected to the slider (624), the slider (624) is slidably connected to the guide groove (6211), the connecting rod (625) is firmly connected to the slider (624), a supporting spring (626) is sleeved on the connecting rod (625), and an elastic contact (627) is provided at one end of the connecting rod (625) away from the slider (624), and the elastic contact (627) is coated with marking ink.

3. The door and window sealing detection device with pressure feedback function according to claim 2, characterized in that: The opening and closing assembly (64) includes a sealing cover (641), an annular electromagnet (642), an attraction ring (643) and an adjustment spring (644); a communication port (613) and a support groove (614) are provided on the protective shell (61); the sealing cover (641) is slidably connected to the communication port (613); the annular electromagnet (642) is firmly connected to the sealing cover (641); the annular electromagnet (642) is electrically connected to the detection system; the attraction ring (643) is electrically connected to the protective shell ( 61) is fastened and connected, the attraction ring (643) and the annular electromagnet (642) are arranged facing each other, the attraction ring (643) is made of ferromagnetic material, a plurality of connecting columns (6411) are arranged circumferentially of the sealing cover (641), a plurality of the connecting columns (6411) are slidably connected to the support groove (614), one end of the adjusting spring (644) is fastened and connected to the bottom end of the connecting column (6411), and the other end of the adjusting spring (644) is fastened and connected to the inner wall of the support groove (614); When closed: the annular electromagnet (642) abuts against the attraction ring (643).

4. The door and window sealing detection device with pressure feedback function according to claim 2, characterized in that: The elastic contact (627) is made of rubber.

5. The door and window sealing detection device with pressure feedback function according to claim 1, characterized in that: A vibration mechanism (7) is provided at the connection point between the air supply pipe (3) and the sealing box (5), and the vibration mechanism (7) is used to simulate the vibrations that doors and windows are subjected to when in use.

6. The door and window sealing detection device with pressure feedback function according to claim 5, characterized in that: The vibration mechanism (7) includes a connecting sleeve (71), a bracket (72), a fan blade (73) and a striking rod (74), wherein the connecting sleeve (71) is tightly connected to the sealing box (5), a wave groove (711) is provided on the connecting sleeve (71), the bracket (72) is slidably connected to the wave groove (711), the fan blade (73) is tightly connected to the bracket (72), the striking rod (74) is tightly connected to the bracket (72), and two striking rods (74) are provided, and the two striking rods (74) are respectively arranged on both sides of the bracket (72); During air intake, the two impact rods (74) impact the surface of the object to be tested alternately.

7. The door and window sealing detection device with pressure feedback function according to claim 6, characterized in that: Guide columns (721) are arranged on both sides of the bracket (72), and the guide columns (721) are slidably connected to the wave groove (711).

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