A vehicle sunroof tightness detection device

Abstract

The present invention discloses a vehicle sunroof airtightness detection device, which belongs to the field of vehicle sunroof detection technology. It includes a rubber plate, a sealing seat, a pressure frame, an edge seal, a negative pressure unit and a sealing detection host. The inner surface of the rubber plate is bonded and fixed with an inner plate seat; the sealing seat is bonded and fixed with the bottom surface of the rubber plate; the sealing seat includes a frame plate, the bottom surface of the frame plate is provided with a square ring groove; the bottom surface of the square ring groove is integrally formed with an expansion groove; the frame plate is provided with a first C-shaped ring groove outside the square ring groove; the pressure frame is embedded and fixed on the inner side of the first C-shaped ring groove; the bottom of the pressure frame is provided with a second C-shaped ring groove; the edge seal is provided with two groups, and is respectively embedded and fixed on the inner side of the second C-shaped ring groove; the negative pressure unit includes a first one-way valve and a first pressure transmitter. The vehicle sunroof airtightness detection device of the present invention can accurately detect the airtightness of the sunroof. When airtightness fails, the air leakage position can be quickly detected, and there is no need to dry the sunroof after detection.

Description

Technical Field

[0001] The invention specifically relates to a vehicle sunroof tightness detection device, and belongs to the technical field of vehicle sunroof detection. Background Art

[0002] The car sunroof can be used for ventilation and light transmission inside the car, which is beneficial to the circulation of air inside the car. When the car sunroof is closed, it is necessary to ensure the airtightness of the car sunroof, so as to prevent rain from entering the car and enable the car to have better insulation and sound insulation effects. For this reason, it is necessary to detect the airtightness of the car sunroof. Existing sunroof airtightness detection equipment, such as China Patent Publication No.: CN116046277A, discloses a car sunroof airtightness detection device, which improves the accuracy of car sunroof airtightness detection by simulating a vehicle driving on an uneven road. The detection method of the device is water spraying. Detection; Another example is Chinese patent announcement number: CN221506208U, which discloses a car sunroof sealing detection device, which installs nozzles with equal spacing at the bottom of the liquid tank, and sprays water evenly onto the car sunroof through the nozzles. The device also uses a water spray method for detection; when the water spray detection scheme is adopted, small leaks are easy to be ignored. When the sunroof is used, with the problems of thermal expansion and contraction and aging of the rubber strips, the leaks are easy to be enlarged, thereby causing the sunroof to fail to be sealed; in addition, when the sealing test fails, it is impossible to determine whether it is a defect of the car sunroof itself or a defect in the installation position of the car sunroof. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a car sunroof airtightness detection device, which can accurately detect the airtightness of the sunroof. When airtightness failure occurs, the leakage position can be quickly detected, and there is no need to dry the sunroof after detection.

[0004] The vehicle sunroof tightness detection device of the present invention comprises:

[0005] A rubber plate, the rubber plate is made of soft rubber; an inner plate seat is bonded and fixed to the inner surface of the rubber plate;

[0006] A sealing seat, the sealing seat is made of hard rubber, the sealing seat is bonded and fixed to the bottom surface of the rubber plate; the sealing seat comprises a frame plate, the bottom surface of the frame plate is provided with a square ring groove; the bottom surface of the square ring groove is integrally formed with an expansion groove; the frame plate is provided with a first C-shaped ring groove outside the square ring groove;

[0007] A pressing frame, the pressing frame is made of soft rubber and is embedded and fixed inside the first C-shaped ring groove; a second C-shaped ring groove is formed at the bottom of the pressing frame;

[0008] Edge sealing, the edge sealing is made of silicone material, and two groups of edge sealing are provided, and are respectively embedded and fixed on the inner side of the second C-shaped annular groove; the two groups of edge sealing are close to each other and have the same inclination angle as the inner surface of the diameter expansion groove;

[0009] A negative pressure unit, the negative pressure unit comprises a first one-way valve and a first pressure transmitter, the first one-way valve and the first pressure transmitter are embedded and fixed on the inner top surface of the square ring groove; the first one-way valve is connected to the first solenoid valve on the top surface of the rubber plate;

[0010] A pressurizing unit, the pressurizing unit comprising a second one-way valve and a second pressure transmitter, the second one-way valve and the second pressure transmitter are fixed to the bottom surface of the inner plate seat; the second one-way valve is connected to the second solenoid valve on the top surface of the rubber plate;

[0011] The closed detection host includes a body fixed on the top surface of the rubber plate, a negative pressure pump group connected to the first solenoid valve and a booster pump group connected to the second solenoid valve are fixed inside the body; a controller for controlling the whole machine is also fixed inside the body; a self-test sealing button and a skylight closed detection button connected to the controller are fixed outside the body.

[0012] During operation, the sealing seat is set to the outside of the car sunroof installation position so that the car sunroof installation position is covered to the inside of the sealing seat. Then, the sealing seat is pressed to make the pressure frame and the sealing edge on the sealing seat be pressed and adsorbed to the outside of the car sunroof installation position; then, the self-test sealing button is pressed, and the negative pressure pump group is activated. The negative pressure pump group vacuums or applies negative pressure to the inside of the square ring groove through the first solenoid valve and the first one-way valve, and monitors the pressure value in real time through the first pressure transmitter. When the vacuum loss of the square ring groove does not exceed the set value within the set time, it is prompted that the square ring groove is adsorbed successfully, and the first solenoid valve is closed. Otherwise, it is necessary to manually adjust and press the sealing seat again until the square ring groove is adsorbed successfully, so that the rubber plate, the inside of the sealing seat and the car sunroof form a complete closed cavity. At this time, the sunroof airtightness detection button is pressed. Press the button and the booster pump group starts working. The booster pump group continuously injects pressurized gas into the closed cavity through the second solenoid valve and the second one-way valve until the second pressure transmitter detects that the pressure reaches the set value, then stops adding gas and closes the second solenoid valve; and within the set time, detects the pressure value in the closed cavity again through the second pressure transmitter. When the pressure value still reaches the set safety value, the airtightness test passes; otherwise, the test is judged to have failed; the first closed cavity formed by the square ring groove and the outside of the car sunroof is evacuated or under negative pressure, and the rubber plate, the sealing seat and the outside of the car sunroof form a second closed cavity, which is inflated and pressurized, thereby further increasing the pressure difference between the first sealed cavity and the second sealed cavity, so that the sealing effect of the pressure frame and the edge sealing is better, and the gas in the second sealed cavity is prevented from leaking from the edge sealing, resulting in false detection.

[0013] Furthermore, an alignment disk is fixed to the bottom surface of the inner panel seat, a spring body is embedded and fixed to the bottom surface of the alignment disk, a positioning seat is arranged opposite to the bottom of the alignment disk, the positioning seat comprises an electronic suction cup which is sucked onto the sunroof glass by negative pressure, a magnetic suction cup is fixed to the top surface of the electronic suction cup, and the magnetic suction cup is electromagnetically attracted to the alignment disk; during detection, the electronic suction cup is first attracted to the glass surface of the car sunroof, and then the magnetic suction cup on the electronic suction cup is attracted to the alignment disk, so that the electronic suction cup and the inner panel seat are elastically supported; thereby supporting the sealed detection host; preventing the pressing frame and the edge sealing from being peeled off from the test position during the detection process.

[0014] Furthermore, a connecting tube is embedded and fixed between the inner frame of the frame plate and the square ring groove, and connecting solenoid valves and opening valves are fixed at both ends of the connecting tube; during testing, the square ring groove of the sealing seat is first vacuumed or negatively pressurized by the negative pressure pump group, and the inner side of the sealing seat is inflated and pressurized by the booster pump group; after the test is completed, the connecting solenoid valve and the opening valve are opened in turn, so that the pressurized gas is transported from the inner side of the sealing seat to the inner side of the square ring groove, and the negative pressure state in the square ring groove is released; the pressing frame and the edge seal can be quickly separated from the test position, and the operation is simple and convenient.

[0015] Furthermore, the edge seal is sucked onto the outside of the car sunroof; by covering the outside of the car sunroof with the edge seal, leakage of pressurized gas from the edge seal is prevented, which would cause failure of the car sunroof airtightness test.

[0016] Furthermore, it also includes a testing platform, the top surface of which is embedded with a hydraulic lifting platform, and the top surface of the testing platform is fixed with multiple pillars outside the hydraulic lifting platform, and the top surfaces of the pillars are fixed with a template seat; a sunroof sealing frame seat is detachably fixed on the template seat; a table plate is fixed on the top surface of the hydraulic lifting platform, and a sunroof force platform and ear hole positioning columns are provided on the table plate; during testing, when the automobile sunroof is completed, the automobile sunroof is sent to the top of the testing platform by a manipulator, and then the automobile sunroof is lowered to the sunroof force platform, and manually adjusted to make the fixed ear holes on the outer frame of the automobile sunroof and the ear hole positioning columns align and embed, so as to realize the positioning of the automobile sunroof and the testing platform, and then, the hydraulic lifting platform is driven to lift the automobile sunroof, so that the automobile sunroof and the sunroof sealing frame seat are embedded and sealed; the sunroof sealing frame seat can select a matching model according to different types of automobile sunroofs, and be assembled to the template seat When testing the tightness of the car sunroof, first align the sealing seat and fit it between the template seat and the sunroof sealing frame seat, then trigger the negative pressure unit to work, and use the negative pressure pump group, the first solenoid valve and the first one-way valve to draw negative pressure and vacuum into the sealing seat, and use the first pressure transmitter to detect whether the template seat and the sunroof sealing frame seat are sealed. If there is an air leakage, adjust the installation method of the template seat and the sunroof sealing frame seat. If it is determined to be sealed, monitor the sealing state in real time through the first pressure transmitter, then inflate and pressurize the closed cavity formed by the rubber plate, the sealing seat and the car sunroof through the booster pump group, the second solenoid valve and the second one-way valve. When the second pressure transmitter detects the set pressure value, stop pressurizing; continuously monitor the pressure value through the second pressure transmitter, and within the set time, when the pressure value monitored by the second pressure transmitter still reaches the safety pressure value, the sealing test passes, otherwise the test fails. The test bench can be used to determine whether the car sunroof has failed to seal. After the car sunroof has completed the test on the test bench, the car sunroof is installed on the vehicle and the sealing test is performed again to determine whether there is a sealing failure in the car sunroof installation position.

[0017] Furthermore, it also includes a sealed inspection unit, which is arranged directly below the car sunroof to be inspected, and a gap is arranged between the sealed inspection unit and the car sunroof to be inspected; during inspection, the sealed inspection unit is placed directly below the car sunroof to be inspected, and when the pressurized gas passes through the sealed failure position of the car sunroof, the pressurized gas blows or impacts the sealed inspection unit; and the pressurized gas is released from the gap between the car sunroof and the sealed inspection unit.

[0018] Furthermore, the sealing inspection unit is movably arranged on a magnetic frame or fixed on a pillar, and the magnetic frame is installed on the inner surface of the car by electromagnetic attraction; when the car sunroof is not installed on the vehicle, the sealing failure position of the car sunroof is detected by the sealing inspection unit on the pillar; when the car sunroof is installed on the vehicle, the magnetic frame is attracted to the inner roof of the vehicle by electromagnetic attraction, and then the sealing inspection unit is movably placed on the magnetic frame.

[0019] Furthermore, the closed inspection unit is an ash tray or a frame plate rack, a powder layer is placed inside the ash tray, and the sunroof force platform movably embeds the ash tray; the frame plate rack is provided with multiple rows of soft hair bodies opposite to the glass frame of the automobile sunroof to be inspected; during inspection, pressurized gas is filled into the rubber plate, the sealing seat and the outside of the automobile sunroof to form a closed cavity, and when the ash tray is used for inspection, when a leak occurs in the automobile sunroof, the pressurized gas passes through the leaking position of the automobile sunroof, and the pressurized gas impacts or blows the powder layer of the ash tray, and since the top surface of the powder layer is scraped and leveled before inspection, during inspection, the airtight failure position of the automobile sunroof can be checked by observing the position of the concave position of the powder layer; when the frame plate rack is used for inspection, when a leak occurs in the automobile sunroof, the pressurized gas passes through the leaking position of the automobile sunroof, and the pressurized gas impacts or blows the soft hair bodies on the frame plate rack, and the airtight failure position of the automobile sunroof can be confirmed by observing the swinging position of the soft hair bodies.

[0020] Furthermore, the Shore hardness of the soft rubber is 50-60 degrees, and the Shore hardness of the hard rubber is 80-90 degrees. The sealing seat made of hard rubber can provide support for the pressing frame and the edge sealing; the rubber plate made of soft rubber can be deformed according to the external curvature of the automobile sunroof to achieve a fitting curvature that matches it; at the same time, the pressing frame made of soft rubber can be flexibly deformed to better fit the outside of the automobile sunroof. Finally, the outside of the automobile sunroof is flexibly deformed and coated through the edge sealing to ensure that the square ring groove and the outside of the automobile sunroof form a closed cavity.

[0021] Compared with the prior art, the automobile sunroof tightness detection device of the present invention, during detection, establishes a closed cavity outside the automobile sunroof, and evacuates or applies negative pressure to the closed cavity, and monitors the vacuum degree in real time. When the vacuum degree decreases, it indicates that the seal of the automobile sunroof exterior has failed. Thus, the detection error caused by air leakage on the outside of the automobile sunroof can be eliminated. Thus, the airtightness of the sunroof can be accurately detected. There is no need to dry the sunroof after the detection. In addition, when it is detected that the automobile sunroof has failed to seal, it can be determined whether the automobile sunroof has failed to seal or the automobile sunroof installation position has failed to seal, and the air leakage position can be accurately located. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the vehicle sunroof tightness detection device of the present invention.

[0023] Figure 2 This is a schematic diagram of the connection of the internal modules of the airtight detection host of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the rubber plate and the sealing seat before installation of the present invention.

[0025] Figure 4The present invention is a schematic diagram of the installation structure of the alignment plate and the positioning seat of the vehicle sunroof tightness detection device.

[0026] Figure 5 The figure is a schematic diagram of the connecting pipe installation structure of the vehicle sunroof tightness detection device of the present invention.

[0027] Figure 6 The present invention is a schematic diagram of the installation structure of the vehicle sunroof tightness detection device and the detection platform.

[0028] Figure 7 The present invention is a schematic diagram of the installation structure of the vehicle sunroof airtightness detection device and the airtightness inspection unit.

[0029] Figure 8 It is a schematic diagram of the installation structure of the detection platform and the closed inspection unit of the present invention.

[0030] Fig. 9 It is a schematic diagram of the installation structure of the frame and the soft hair body of the present invention.

[0031] Figure numerals: 1, rubber plate, 2, inner plate seat, 3, sealing seat, 4, frame plate, 5, square ring groove, 6, diameter expansion groove, 7, pressure frame, 8, edge sealing, 9, first one-way valve, 10, first pressure transmitter, 11, first solenoid valve, 12, second one-way valve, 13, second pressure transmitter, 14, second solenoid valve, 15, airtight detection host, 16, negative pressure pump group, 17, booster pump group, 18, self-test sealing button, 19, skylight airtight detection button, 2 0. Alignment plate, 21. Spring body, 22. Electronic suction cup, 23. Magnetic suction cup, 24. Car sunroof, 25. Connecting pipe, 26. Connecting solenoid valve, 27. Opening valve, 28. Inspection table, 29. Hydraulic lifting platform, 30. Pillar, 31. Template seat, 32. Sunroof sealing frame seat, 33. Table, 34. Sunroof force platform, 35. Ear hole positioning column, 36. Magnetic suction rack, 37. Ash tray, 38. Frame rack, 39. Soft hair body, 40. Controller. DETAILED DESCRIPTION

[0032] Example:

[0033] like Figures 1 to 9 The vehicle sunroof tightness detection device shown comprises:

[0034] A rubber plate 1, wherein the rubber plate 1 is made of soft rubber; an inner plate seat 2 is bonded and fixed to the inner surface of the rubber plate 1;

[0035] The sealing seat 3 is made of hard rubber and is bonded and fixed to the bottom surface of the rubber plate 1; the sealing seat 3 includes a frame plate 4, and a square ring groove 5 is formed on the bottom surface of the frame plate 4; the bottom surface of the square ring groove 5 is integrally formed with an expansion groove 6; the frame plate 4 is provided with a first C-shaped ring groove outside the square ring groove 5;

[0036] A pressing frame 7, wherein the pressing frame 7 is made of soft rubber and is fixedly engaged with the inner side of the first C-shaped ring groove; a second C-shaped ring groove is formed at the bottom of the pressing frame 7;

[0037] The edge seal 8 is made of silicone material. Two groups of edge seals 8 are provided and are respectively fixed on the inner side of the second C-shaped annular groove. One side of the two groups of edge seals 8 close to each other has the same inclination angle as the inner side of the diameter expansion groove 6.

[0038] A negative pressure unit, the negative pressure unit comprises a first one-way valve 9 and a first pressure transmitter 10, the first one-way valve 9 and the first pressure transmitter 10 are embedded and fixed on the inner top surface of the square ring groove 5; the first one-way valve 9 is connected to the first solenoid valve 11 on the top surface of the rubber plate 1;

[0039] A pressurizing unit, the pressurizing unit comprising a second one-way valve 12 and a second pressure transmitter 13, the second one-way valve 12 and the second pressure transmitter 13 are fixed to the bottom surface of the inner plate seat 2; the second one-way valve 12 is connected to a second solenoid valve 14 on the top surface of the rubber plate 1;

[0040] The airtight detection host 15 includes a body fixed to the top surface of the rubber plate 1, and a negative pressure pump group 16 connected to the first solenoid valve 11 and a booster pump group 17 connected to the second solenoid valve 14 are fixed inside the body; a controller 40 for controlling the entire machine is also fixed inside the body; a self-test sealing button 18 and a sunroof airtight detection button 19 connected to the controller 40 are fixed outside the body.

[0041] During operation, the sealing seat 3 is set to the outside of the installation position of the automobile sunroof 24, so that the installation position of the automobile sunroof 24 is covered to the inner side of the sealing seat 3, and then, the sealing seat 3 is pressed to make the pressure frame 7 and the sealing edge 8 on the sealing seat 3 pressed and adsorbed to the outside of the installation position of the automobile sunroof 24; then, the self-test sealing button 18 is pressed, and the negative pressure pump group 16 is activated. The negative pressure pump group 16 vacuums or negatively presses the inner side of the square ring groove 5 through the first solenoid valve 11 and the first one-way valve 9, and monitors the pressure value in real time through the first pressure transmitter 10. When the vacuum loss of the square ring groove 5 does not exceed the set value within the set time, it is prompted that the square ring groove 5 is adsorbed successfully, and the first solenoid valve 11 is closed. Otherwise, it is necessary to manually adjust and press the sealing seat 3 again until the square ring groove 5 is adsorbed successfully, so that the rubber plate 1, the inner side of the sealing seat 3 and the automobile sunroof 24 form a complete closed cavity. At this time, press the sunroof Press the airtight detection button 19, the booster pump group 17 works, and the booster pump group 17 continuously injects pressurized gas into the closed cavity through the second solenoid valve 14 and the second one-way valve 12 until the second pressure transmitter 13 detects that the pressure reaches the set value, stops adding gas, and closes the second solenoid valve 14; and within the set time, the pressure value in the closed cavity is detected again through the second pressure transmitter 13. When the pressure value still reaches the set safety value, the airtight detection passes; otherwise, the detection is judged to have failed; the first closed cavity formed by the square ring groove 5 and the outside of the automobile sunroof 24 is vacuumed or negatively pressurized inside, and the rubber plate 1, the sealing seat 3 and the outside of the automobile sunroof 24 form a second closed cavity, which is inflated and pressurized, thereby further increasing the pressure difference between the first sealed cavity and the second sealed cavity, so that the sealing effect of the pressure frame 7 and the edge sealing 8 is better; avoid the gas in the second sealed cavity from leaking from the edge sealing 8, resulting in false detection.

[0042] A positioning disk 20 is fixed to the bottom surface of the inner panel seat 2, and a spring body 21 is embedded and fixed to the bottom surface of the positioning disk 20. A positioning seat is arranged opposite to the bottom of the positioning disk 20, and the positioning seat includes an electronic suction cup 22 which is sucked on the sunroof glass by negative pressure, and a magnetic suction cup 23 is fixed to the top surface of the electronic suction cup 22, and the magnetic suction cup 23 is electromagnetically attracted to the positioning disk 20. During detection, the electronic suction cup 22 is first attracted to the glass surface of the automobile sunroof 24, and then the magnetic suction cup 23 on the electronic suction cup 22 is attracted to the positioning disk 20, so that the electronic suction cup 22 and the inner panel seat 2 are elastically supported, thereby being able to support the sealed detection host 15, and preventing the pressing frame 7 and the edge sealing 8 from peeling off from the test position during the detection process.

[0043] A connecting pipe 25 is embedded and fixed between the inner frame of the frame plate 4 and the square ring groove 5, and a connecting solenoid valve 26 and an opening valve 27 are fixed at both ends of the connecting pipe 25; during testing, the square ring groove 5 of the sealing seat 3 is first vacuumed or negatively pressurized by the negative pressure pump group 16, and the inner side of the sealing seat 3 is inflated and pressurized by the booster pump group 17; after the test is completed, the connecting solenoid valve 26 and the opening valve 27 are opened in turn, so that the pressurized gas is transported from the inner side of the sealing seat 3 to the inner side of the square ring groove 5, and the negative pressure state in the square ring groove 5 is released; the pressing frame 7 and the edge sealing 8 can be quickly separated from the test position, and the operation is simple and convenient.

[0044] The edge seal 8 is sucked onto the outside of the automobile sunroof 24 ; the edge seal 8 covers the outside of the automobile sunroof 24 to prevent the pressure gas from leaking from the edge seal 8 , which would cause the failure of the airtightness test of the automobile sunroof 24 .

[0045] The test platform 28 is also included. A hydraulic lifting platform 29 is embedded on the top surface of the test platform 28. A plurality of pillars 30 are fixed on the top surface of the test platform 28 outside the hydraulic lifting platform 29. A template seat 31 is fixed on the top surface of the pillar 30. A sunroof sealing frame seat 32 is detachably fixed on the template seat 31. A table 33 is fixed on the top surface of the hydraulic lifting platform 29. A sunroof force platform 34 and an ear hole positioning column 35 are arranged on the table 33. During the test, when the automobile sunroof 24 is completed, the automobile sunroof 24 is moved by the robot. The window 24 is sent to the top of the inspection platform 28, and then the car sunroof 24 is lowered to the sunroof force-bearing platform 34, and the fixed ear holes on the outer frame of the car sunroof 24 are aligned and engaged with the ear hole positioning columns 35 through manual adjustment to achieve the positioning of the car sunroof 24 and the inspection platform 28. Then, the hydraulic lifting platform 29 is driven to push the car sunroof 24 up, so that the car sunroof 24 and the sunroof sealing frame seat 32 are engaged and sealed; the sunroof sealing frame seat 32 can select a matching model according to different types of car sunroofs 24, and When testing the airtightness of the automobile sunroof 24, first align the sealing seat 3 between the template seat 31 and the sunroof sealing frame seat 32, then trigger the negative pressure unit to work, and use the negative pressure pump group 16, the first solenoid valve 11 and the first one-way valve 9 to pump negative pressure and vacuum into the sealing seat 3, and use the first pressure transmitter 10 to detect whether the template seat 31 and the sunroof sealing frame seat 32 are sealed. If there is leakage, adjust the installation method of the template seat 31 and the sunroof sealing frame seat 32. If it is determined that When sealing, the first pressure transmitter 10 monitors the sealing state in real time, and then the booster pump group 17, the second solenoid valve 14 and the second one-way valve 12 are used to inflate and pressurize the closed cavity formed by the rubber plate 1, the sealing seat 3 and the car sunroof 24. When the second pressure transmitter 13 detects the set pressure value, the pressurization is stopped; the pressure value is continuously monitored by the second pressure transmitter 13, and within the set time, when the pressure value monitored by the second pressure transmitter 13 still reaches the safety pressure value, the airtightness test is passed, otherwise the test fails. The test bench 28 can determine whether the car sunroof 24 fails to seal. After the car sunroof 24 is tested on the test bench 28, the car sunroof 24 is installed on the vehicle, and the airtightness test is performed again to determine whether there is a sealing failure at the installation position of the car sunroof 24.

[0046] It also includes a sealed inspection unit, which is arranged directly below the car sunroof 24 to be inspected, and a gap is arranged between the sealed inspection unit and the car sunroof 24 to be inspected; during inspection, the sealed inspection unit is placed directly below the car sunroof 24 to be inspected, and when the pressurized gas passes through the sealed failure position of the car sunroof 24, the pressurized gas blows or impacts the sealed inspection unit; and the pressurized gas is released from the gap between the car sunroof 24 and the sealed inspection unit.

[0047] The sealing inspection unit is movably arranged on the magnetic bracket 36 or fixed on the pillar 30, and the magnetic bracket 36 is installed on the inner surface of the car by electromagnetic attraction; when the car sunroof 24 is not installed on the vehicle, the sealing failure position of the car sunroof 24 is detected by the sealing inspection unit on the pillar 30; when the car sunroof 24 is installed on the vehicle, the magnetic bracket 36 is attracted to the inner roof of the vehicle by electromagnetic attraction, and then the sealing inspection unit is movably placed on the magnetic bracket 36.

[0048] The closed inspection unit is an ash tray 37 or a frame plate rack 38, the inner side of the ash tray 37 contains a powder layer, and the sunroof force-bearing platform 34 movably embeds the ash tray 37; the frame plate rack 38 is provided with multiple rows of soft hair bodies 39 on the glass frame of the automobile sunroof 24 to be inspected; during the inspection, pressurized gas is filled into the rubber plate 1, the sealing seat 3 and the outside of the automobile sunroof 24 to form a closed cavity. When the ash tray 37 is used for inspection, when the automobile sunroof 24 leaks, the pressurized gas passes through the leaking position of the automobile sunroof 24, and the pressurized gas Impact or blow the powder layer on the ash tray 37. Since the top surface of the powder layer is scraped and leveled before detection, the airtight failure position of the automobile sunroof 24 can be checked by observing the position of the depression in the powder layer during detection. When using the frame frame 38 for detection, when the automobile sunroof 24 leaks, the pressurized gas penetrates the leakage position of the automobile sunroof 24, and the pressurized gas impacts or blows the soft hair body 39 on the frame frame 38. The airtight failure position of the automobile sunroof 24 can be confirmed by observing the swinging position of the soft hair body 39.

[0049] The Shore hardness of the soft rubber is 50-60 degrees, and the Shore hardness of the hard rubber is 80-90 degrees. The sealing seat 3 made of hard rubber can provide support for the pressing frame 7 and the edge sealing 8; the rubber plate 1 made of soft rubber can be deformed according to the external curvature of the automobile sunroof 24 to achieve a fitting curvature matching therewith; at the same time, the pressing frame 7 made of soft rubber can be flexibly deformed to better fit the outside of the automobile sunroof 24. Finally, the outside of the automobile sunroof 24 is flexibly deformed and coated by the edge sealing 8, thereby ensuring that the square ring groove 5 and the outside of the automobile sunroof 24 form a closed cavity.

[0050] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A vehicle sunroof tightness detection device, characterized in that: include: A rubber plate, the rubber plate is made of soft rubber; an inner plate seat is bonded and fixed to the inner surface of the rubber plate; A sealing seat, the sealing seat is made of hard rubber, the sealing seat is bonded and fixed to the bottom surface of the rubber plate; the sealing seat comprises a frame plate, the bottom surface of the frame plate is provided with a square ring groove; the bottom surface of the square ring groove is integrally formed with an expansion groove; the frame plate is provided with a first C-shaped ring groove outside the square ring groove; A pressing frame, the pressing frame is made of soft rubber and is embedded and fixed inside the first C-shaped ring groove; a second C-shaped ring groove is formed at the bottom of the pressing frame; Edge sealing, the edge sealing is made of silicone material, and two groups of edge sealing are provided, and are respectively embedded and fixed on the inner side of the second C-shaped annular groove; the two groups of edge sealing are close to each other and have the same inclination angle as the inner surface of the diameter expansion groove; A negative pressure unit, the negative pressure unit comprises a first one-way valve and a first pressure transmitter, the first one-way valve and the first pressure transmitter are embedded and fixed on the inner top surface of the square ring groove; the first one-way valve is connected to the first solenoid valve on the top surface of the rubber plate; A pressurizing unit, the pressurizing unit comprising a second one-way valve and a second pressure transmitter, the second one-way valve and the second pressure transmitter are fixed to the bottom surface of the inner plate seat; the second one-way valve is connected to the second solenoid valve on the top surface of the rubber plate; The airtight detection host comprises a body fixed to the top surface of the rubber plate, a negative pressure pump group connected to the first solenoid valve and a booster pump group connected to the second solenoid valve are fixed inside the body; a controller for controlling the whole machine is also fixed inside the body; a self-test sealing button and a sunroof airtight detection button connected to the controller are fixed outside the body; It also includes a testing platform and a closed inspection unit, wherein the top surface of the testing platform is embedded with a hydraulic lifting platform, and the top surface of the testing platform is fixed with multiple pillars outside the hydraulic lifting platform, and the top surface of the pillar is fixed with a template seat; a sunroof sealing frame seat is detachably fixed on the template seat; a table plate is fixed on the top surface of the hydraulic lifting platform, and a sunroof force bearing platform and ear hole positioning columns are arranged on the table plate; the closed inspection unit is arranged directly below the sunroof of the car to be inspected, and a gap is arranged between the closed inspection unit and the sunroof of the car to be inspected; The square ring groove and the outside of the car sunroof form a first closed cavity, the inside of which is evacuated or under negative pressure, and the rubber plate, the sealing seat and the outside of the car sunroof form a second closed cavity, which is inflated and pressurized, thereby further increasing the pressure difference between the first sealed cavity and the second sealed cavity; When testing the tightness of the car sunroof, align the sealing seat between the template seat and the sunroof sealing frame seat.

2. The vehicle sunroof tightness detection device according to claim 1, characterized in that: A positioning plate is fixed to the bottom surface of the inner plate seat, a spring body is embedded and fixed to the bottom surface of the positioning plate, a positioning seat is arranged opposite to the bottom of the positioning plate, the positioning seat includes an electronic suction cup which is sucked onto the skylight glass by negative pressure, a magnetic suction cup is fixed to the top surface of the electronic suction cup, and the magnetic suction cup is electromagnetically attracted to the positioning plate.

3. The vehicle sunroof tightness detection device according to claim 1, characterized in that: A connecting pipe is embedded and fixed between the inner frame of the frame plate and the square ring groove, and a connecting solenoid valve and an opening valve are fixed at both ends of the connecting pipe.

4. The vehicle sunroof tightness detection device according to claim 1, characterized in that: The edge sealing is sucked onto the outside of the automobile sunroof.

5. The vehicle sunroof tightness detection device according to claim 1, characterized in that: The enclosed inspection unit is movably arranged on a magnetic frame or fixed on a support, and the magnetic frame is installed on the inner surface of the car through electromagnetic attraction.

6. The vehicle sunroof tightness detection device according to claim 1, characterized in that: The enclosed inspection unit is an ash tray or a frame frame, the inner side of the ash tray contains a powder layer, and the skylight force-bearing platform movably embeds the ash tray; the frame frame is provided with multiple rows of soft hair bodies facing the glass frame of the sunroof of the automobile to be inspected.

7. The vehicle sunroof tightness detection device according to claim 1, characterized in that: The Shore hardness of the soft rubber is 50-60 HA, and the Shore hardness of the hard rubber is 80-90 HA.

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