Motor train unit window air tightness test device

Abstract

The utility model provides a motor train unit window air tightness test device, which belongs to the technical field of window air tightness detection and comprises a test bed, a detection frame body, a support frame body, a lifting cover plate, an adsorption fixing assembly and a lifting assembly. The lifting cover plate is arranged above the supporting frame body; the adsorption fixing assembly is arranged on the lifting cover plate and used for being adsorbed and fixed to a vehicle window. The lifting assembly is arranged on the lifting cover plate; the lifting assembly comprises two supporting plates which are oppositely arranged, the supporting plates are rotationally connected to the lifting cover plate, and the supporting plates have the anti-loosening state that the supporting plates rotate to the position above the lifting cover plate and further have the bearing state that the supporting plates rotate to the position below the lifting cover plate and are lifted at the bottom of the car window; after airtightness detection of the vehicle window is completed, the lifting cover plate moves the vehicle window upwards by a preset distance through the adsorption fixing assembly, and the supporting plate rotates from the anti-loosening state to the bearing state. The motor train unit window air tightness test device provided by the utility model is simple in operation process and low in difficulty coefficient, and can effectively improve the test work efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle window air tightness detection, and more specifically relates to a vehicle window air tightness test device for a motor vehicle group. Background Art

[0002] The windows of EMUs can provide passengers with windows to observe the outside world. Due to the high speed of EMUs, the air tightness of the windows of EMUs needs to meet higher requirements. In order to ensure that the air tightness of the EMU windows meets the standards and ensure the safety of the EMU, it is necessary to conduct air tightness testing on the windows using air tightness testing equipment.

[0003] In the prior art, when a test device is used for testing, after the test is completed, in order to prevent the car window from falling and breaking, it is often necessary to manually lift the car window after lifting it out of the test platform, and then release the fixed suction cup of the car window to remove the car window. The operation process is cumbersome, the operation is difficult, and the test work efficiency is low. Utility Model Content

[0004] The utility model aims to provide a train window air tightness test device, aiming to solve the technical problems of complicated operation process, high operation difficulty and low test efficiency when the existing test device performs air tightness detection.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an EMU window air tightness test device, including a test bench, a detection frame is provided on the top surface of the test bench, and a support frame for horizontally supporting the bottom of the window is provided in the detection frame. The EMU window air tightness test device also includes:

[0006] A lifting cover plate is placed above the supporting frame;

[0007] An adsorption and fixing component, provided on the lifting cover plate, and used for adsorption and fixing on the vehicle window; and

[0008] A lifting assembly is provided on the lifting cover; the lifting assembly comprises two supporting plates arranged opposite to each other, the supporting plates are rotatably connected to the lifting cover, the supporting plates have a locking state when rotating to the upper part of the lifting cover, and the supporting plates also have a supporting state when rotating to the lower part of the lifting cover and lifting at the bottom of the vehicle window;

[0009] Wherein, after the air tightness test of the vehicle window is completed, the lifting cover plate moves the vehicle window up by a preset distance through the adsorption and fixing assembly, and the support plate rotates from the anti-loosening state to the supporting state to lift the vehicle window.

[0010] In a possible implementation, the lifting cover is provided with two mounting grooves, which extend in opposite directions and correspondingly pass through two opposite end surfaces of the lifting cover; a rotating shaft is provided in each of the mounting grooves, and the axis of the rotating shaft is arranged along a direction perpendicular to the extension direction of the mounting groove; wherein the support plate is arranged on the rotating shaft, and the support plate forms the anti-loosening state and the supporting state when rotating with the rotating shaft.

[0011] In a possible implementation, the EMU window air tightness test device further includes:

[0012] Two sets of transmission components are correspondingly arranged in the two installation grooves; the driven end of the transmission component is connected to the rotating shaft;

[0013] A driving assembly is arranged on the test bench, and a power output end of the driving assembly is respectively connected to the active ends of the two groups of transmission assemblies through the lifting cover plate;

[0014] Wherein, the driving assembly drives the rotating shaft to rotate through the transmission assembly.

[0015] In some embodiments, the transmission assembly includes:

[0016] A rotating gear, fixedly mounted on the rotating shaft, forming the driven end;

[0017] A transmission rack is slidably connected in the installation groove along the extension direction of the installation groove; one end of the transmission rack is meshed with the rotating gear for transmission, and the other end of the transmission rack is connected to the power output end of the driving component to form the active end.

[0018] In some embodiments, the drive assembly includes:

[0019] A lifting cylinder is arranged on the test bench, and a power output end of the lifting cylinder is connected to the lifting cover plate;

[0020] Two guide rails are arranged one by one corresponding to the two groups of transmission assemblies; the lower ends of the guide rails are fixed to the detection frame, the upper ends of the guide rails extend upward to be connected to the fixed frame of the test bench, and the two guide rails have arc structures protruding toward each other;

[0021] Two guide rods, corresponding to the two guide rails one by one, the guide rods are slidably connected in the corresponding guide rails, and one end of the guide rod passes through the lifting cover and is fixedly connected to the transmission rack;

[0022] When the lifting cylinder drives the lifting cover to move up and down, the guide rod slides in the guide track; when the guide rod slides in the arc structure, the guide rod drives the transmission rack to slide horizontally in the installation groove along the extension direction of the installation groove, so that the rotating gear drives the rotating shaft to rotate.

[0023] Exemplarily, the guide track includes:

[0024] A first vertical track extending upward from the detection frame along a vertical direction;

[0025] an arc track, disposed at the upper end of the first vertical track, the arc track having the arc structure; and

[0026] A second vertical track is provided at the upper end of the arc track and extends upward in a vertical direction to be connected with the fixing frame;

[0027] When the guide rod slides up and down in the arc track, the guide rod drives the transmission rack to slide horizontally along the extension direction of the installation groove, so that the support plate rotates in the anti-loosening state and switches between the supporting state.

[0028] Exemplarily, a clearance groove is provided on one side of the groove wall of the installation groove, the clearance groove and the extension direction of the installation groove are the same, and the clearance groove runs through the groove wall of the installation groove to the side of the lifting cover plate facing the guide rail; one end of the guide rod passes through the clearance groove and is fixedly connected to the transmission rack;

[0029] A guide groove is provided on the groove wall on the other side of the installation groove, and the extension direction of the guide groove is the same as that of the giving way groove; one end of the guide rod that penetrates into the installation groove is slidably connected in the guide groove.

[0030] In some embodiments, a flip frame is fixed on the rotating shaft, and the support plate is fixed on the rotating shaft through the flip frame.

[0031] Exemplarily, the flip box includes:

[0032] A U-shaped portion, which is a U-shaped structure with its opening facing the rotating shaft, two sides of the opening end of the U-shaped portion are symmetrically connected to two sides of the rotating gear, and the other end of the U-shaped portion is connected to the support plate;

[0033] A support portion is provided at one end of the U-shaped portion away from the opening end; two ends of the support portion are respectively vertically connected to the support plate and the U-shaped portion;

[0034] Wherein, a U-shaped groove for supporting the vehicle window is surrounded by the support portion, the U-shaped portion and the support plate.

[0035] In a possible implementation, the adsorption and fixing component includes:

[0036] An air pump, arranged on the lifting cover;

[0037] At least two fixing tubes are arranged at intervals at the bottom of the lifting cover plate, and a suction cup is provided at the lower end of each fixing tube; and

[0038] At least two hoses are connected to the air pump; each of the hoses is correspondingly connected to one of the fixed pipes.

[0039] Compared with the prior art, the solution shown in the embodiment of the present application can fix the vehicle window by an adsorption fixing component, and drive the vehicle window to move up and down by a lifting cover plate, so that the vehicle window can be placed on a support frame to lift or lower the vehicle window; and, by providing a support plate, after completing the air tightness test of the vehicle window, the support plate can be lifted to the bottom of the vehicle window to remove the adsorption fixing component, and then when the vehicle window is removed, there is no need to lift the vehicle window manually, the operation process is simple, and the difficulty coefficient is low, which can effectively improve the efficiency of the test work; the two support plates are lifted at the bottom of the vehicle window to maintain the stability of the vehicle window, so as to avoid the window being broken when the manual lifting is unstable, and the safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A schematic diagram of the structure of a train window air tightness test device provided by an embodiment of the utility model;

[0042] Figure 2 A partially enlarged structural schematic diagram of a train window air tightness test device provided by an embodiment of the utility model;

[0043] Figure 3 For attachment Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0044] Figure 4 For attachment Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0045] In the figure:

[0046] 1. Test bench; 11. Fixed frame;

[0047] 2. Detection frame;

[0048] 3. Support frame;

[0049] 4. Lifting cover; 41. Mounting slot; 42. Giving way slot; 43. Guide slot;

[0050] 5. Adsorption fixing assembly; 51. Air pump; 52. Fixing tube; 53. Suction cup; 54. Hose;

[0051] 6. Lifting assembly; 61. Support plate; 62. Rotating shaft; 63. Turning frame; 631. U-shaped portion; 632. Support portion;

[0052] 7. Transmission assembly; 71. Rotating gear; 72. Transmission rack;

[0053] 8. Driving assembly; 81. Lifting cylinder; 82. Guide rail; 821. First vertical rail; 822. Arc rail; 823. Second vertical rail; 83. Guide rod. DETAILED DESCRIPTION

[0054] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0055] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0057] Please also read Figures 1 to 4Now, the EMU window air tightness test device provided by the utility model is described. The EMU window air tightness test device comprises a test bench 1, a detection frame 2 is provided on the top surface of the test bench 1, a support frame 3 for horizontally supporting the bottom of the window is provided in the detection frame 2, and the EMU window air tightness test device also comprises a lifting cover plate 4, an adsorption and fixing component 5 and a lifting component 6; the lifting cover plate 4 is placed above the support frame 3; the adsorption and fixing component 5 is arranged on the lifting cover plate 4, and is used for adsorption and fixing on the window; the lifting component 6 is arranged on the lifting cover plate 4; the lifting component 6 comprises two oppositely arranged support plates 61, the support plates 61 are rotatably connected to the lifting cover plate 4, the support plates 61 have an anti-loosening state of rotating to the top of the lifting cover plate 4, and the support plates 61 also have a supporting state of rotating to the bottom of the lifting cover plate 4 and supporting at the bottom of the window; wherein, after the air tightness test of the window is completed, the lifting cover plate 4 moves the window up a preset distance through the adsorption and fixing component 5, and the support plates 61 rotate from the anti-loosening state to the supporting state to lift the window.

[0058] It should be understood that after completing the air tightness test of the vehicle window, the support plate 61 is in an anti-loosening state. After the lifting cover plate 4 drives the vehicle window to rise to a preset distance, the support plate 61 is rotated to a supporting state to lift the vehicle window, thereby releasing the adsorption and fixing component 5 and removing the vehicle window.

[0059] It should be noted that in the present application, a smoke generator is provided in the detection frame 2, and the smoke generator is used to fill the detection frame 2 with smoke; and a smoke sensor is provided in the support frame 3, and the smoke sensor is used to sense whether smoke enters the support frame 3, so as to judge the air tightness of the vehicle window.

[0060] Compared with the prior art, the EMU window air tightness test device provided by the utility model can fix the window by the adsorption fixing component 5, and drive the window to move up and down by the lifting cover plate 4, so as to put the window on the support frame 3 to lift or lower the window; and, by setting the support plate 61, after completing the air tightness test of the window, the support plate 61 can be lifted at the bottom of the window, so as to remove the adsorption fixing component 5, and then when removing the window, there is no need to lift the window manually, the operation process is simple, and the difficulty coefficient is low, which can effectively improve the test work efficiency; the two support plates 61 are lifted at the bottom of the window to maintain the stability of the window, so as to avoid the window being broken when the manual lifting is unstable, and the safety is higher.

[0061] See also Figure 1In some possible embodiments, two mounting grooves 41 are provided on the lifting cover 4, and the two mounting grooves 41 extend in opposite directions and correspond to two opposite end surfaces of the lifting cover 4; a rotating shaft 62 is provided in each mounting groove 41, and the axis of the rotating shaft 62 is arranged along a direction perpendicular to the extension direction of the mounting groove 41; wherein the support plate 61 is arranged on the rotating shaft 62, and the support plate 61 forms an anti-loosening state and a supporting state when rotating with the rotating shaft 62.

[0062] The support plate 61 is rotated by setting a rotating shaft 62; the mounting groove 41 is passed through one side of the lifting cover plate 4 to give way to the support plate 61, thereby avoiding interference between the support plate 61 and the lifting cover plate 4 when the support plate 61 rotates.

[0063] Furthermore, the mounting groove 41 passes through the upper and lower surfaces of the lifting cover plate 4 in the vertical direction, and is used to make way for the support plate 61 .

[0064] Optionally, in order to realize the rotation of the rotating shaft 62, a driving motor may be provided on the lifting cover 4, and the driving motor may drive the rotating shaft 62 to rotate a certain angle.

[0065] See also Figure 2 In some possible embodiments, the EMU window air tightness test device also includes two sets of transmission components 7 and a driving component 8; the two sets of transmission components 7 are correspondingly arranged in two installation grooves 41; the driven end of the transmission component 7 is connected to the rotating shaft 62; the driving component 8 is arranged on the test bench 1, and the power output end of the driving component 8 is respectively connected to the active ends of the two sets of transmission components 7 through the lifting cover plate 4; wherein, the driving component 8 drives the rotating shaft 62 to rotate through the transmission component 7.

[0066] Specifically, the driving assembly 8 is used to transmit power to the active end of the transmission assembly 7 , and drives the rotating shaft 62 to rotate via the driven end of the transmission assembly 7 , thereby realizing the rotation of the support plate 61 .

[0067] Optionally, a fixed frame 11 is provided on the top surface of the test bench 1, and the fixed frame 11 is covered above the detection frame 2; the driving component 8 is provided on the fixed frame 11 of the test bench 1; optionally, the driving component 8 can be a driving motor, and the transmission component 7 can be two mutually meshing gears for driving the rotating shaft 62 to rotate.

[0068] See also Figure 3 In some embodiments, the transmission assembly 7 includes a rotating gear 71 and a transmission rack 72; the rotating gear 71 is fixed on the rotating shaft 62 to form a driven end; the transmission rack 72 is slidably connected in the installation groove 41 along the extension direction of the installation groove 41; one end of the transmission rack 72 is meshed with the rotating gear 71 for transmission, and the other end of the transmission rack 72 is connected to the power output end of the driving assembly 8 to form an active end.

[0069] Through the meshing of the rotating gear 71 and the transmission rack 72 , the linear motion of the transmission rack 72 at the active end is converted into the rotation of the rotating gear 71 at the driven end, so as to drive the rotating shaft 62 to rotate.

[0070] See also Figure 2 and Figure 3 In some embodiments, the driving assembly 8 includes a lifting cylinder 81, two guide rails 82 and two guide rods 83; the lifting cylinder 81 is arranged on the test bench 1, and the power output end of the lifting cylinder 81 is connected to the lifting cover plate 4; the two guide rails 82 are arranged in a one-to-one correspondence with the two sets of transmission assemblies 7; the lower end of the guide rail 82 is fixed to the detection frame 2, and the upper end of the guide rail 82 extends upward to be connected to the fixed frame 11 of the test bench 1, and the two guide rails 82 have an arc structure protruding toward each other; the two guide rods 83 are connected to the test bench 1, and the two guide rails 82 are connected to the test bench 1. 3 corresponds to the two guide rails 82 one by one, the guide rod 83 is slidably connected in the corresponding guide rail 82, and one end of the guide rod 83 passes through the lifting cover plate 4 and is fixedly connected to the transmission rack 72; wherein, when the lifting cylinder 81 drives the lifting cover plate 4 to move up and down, the guide rod 83 slides in the guide rail 82; when the guide rod 83 slides in the above-mentioned arc structure, the guide rod 83 drives the transmission rack 72 to slide horizontally in the installation groove 41 along the extension direction of the installation groove 41, so that the rotating gear 71 drives the rotating shaft 62 to rotate.

[0071] It should be understood that, at the arc structure of the guide rail 82, the guide rod 83 has the freedom to move up and down in the vertical direction, and also has the freedom to move along the extension direction of the mounting groove 41; and, when the lifting cylinder 81 drives the lifting cover 4 to move from the lower end to the upper end of the arc structure of the guide rail 82, the guide rod 83 slides in the arc structure of the guide rail 82, and drives the transmission rack 72 to move along the extension direction of the mounting groove 41, so that the transmission rack 72 drives the rotating gear 71 to rotate, and the rotating gear 71 drives the rotating shaft 62 to rotate, and then the rotating shaft 62 drives the support plate 61 to rotate around the rotating shaft 62, so that the support plate 61 rotates from the above-mentioned anti-loosening state to the lifting state, so as to lift the support plate 61 at the bottom of the vehicle window, so as to disassemble the adsorption and fixing component 5 and the vehicle window.

[0072] On the contrary, when the lifting cylinder 81 drives the lifting cover 4 to move from the upper end to the lower end of the arc structure of the guide rail 82, the guide rod 83 slides in the arc structure of the guide rail 82, and drives the transmission rack 72 to move in the opposite direction of the extension direction of the installation groove 41, so that the transmission rack 72 drives the rotating gear 71 to rotate, and the rotating gear 71 drives the rotating shaft 62 to rotate, and then the rotating shaft 62 drives the support plate 61 to rotate in the opposite direction around the rotating shaft 62, so that the support plate 61 rotates from the above-mentioned lifting state to the anti-loosening state, so as to place the support plate 61 below on the support frame 3.

[0073] Specifically, a plurality of lifting cylinders 81 are provided at intervals on the fixed frame 11 , and the power output ends of the lifting cylinders 81 are connected to the lifting cover plate 4 for driving the lifting cover plate 4 to move up and down.

[0074] It should be understood that the lifting cylinder 81 can, on the one hand, drive the vehicle window to move up and down, and on the other hand, can drive the support plate 61 to rotate so as to lift the support plate 61 to the bottom of the vehicle window.

[0075] See also Figure 1 , exemplarily, the guide rail 82 includes a first vertical rail 821, an arcuate rail 822 and a second vertical rail 823; the first vertical rail 821 extends upward from the detection frame 2 in the vertical direction; the arcuate rail 822 is arranged at the upper end of the first vertical rail 821, and the arcuate rail 822 has an arc structure; the second vertical rail 823 is arranged at the upper end of the arcuate rail 822, and extends upward in the vertical direction to connect with the fixed frame 11; wherein, when the guide rod 83 slides up and down in the arcuate rail 822, the guide rod 83 drives the transmission rack 72 to slide horizontally along the extension direction of the mounting groove 41, so that the support plate 61 switches between the anti-loosening state and the supporting state.

[0076] The first vertical rail 821 and the second vertical rail 823 are provided to lower the lifting cover 4 to a specified installation height; specifically, when the guide rod 83 moves in the first vertical rail 821, the support plate 61 is in a clamped state, and when the guide rod 83 moves to the second vertical rail 823, the support plate 61 is in an anti-loosening state, which can be used to press the vehicle window onto the support frame 3 through the adsorption fixing component 5.

[0077] Specifically, the guide rail 82 is provided with a guide groove, and the guide rod 83 slides in the corresponding guide groove.

[0078] See also Figure 2, illustratively, a giveway groove 42 is provided on the groove wall on one side of the installation groove 41, and the extension direction of the giveway groove 42 is the same as that of the installation groove 41. The giveway groove 42 passes through the groove wall of the installation groove 41 to the side of the lifting cover 4 facing the guide rail 82; one end of the guide rod 83 passes through the giveway groove 42 and is fixedly connected to the transmission rack 72; a guide groove 43 is provided on the groove wall on the other side of the installation groove 41, and the extension direction of the guide groove 43 is the same as that of the giveway groove 42; one end of the guide rod 83 that penetrates into the installation groove 41 is slidably connected in the guide groove 43.

[0079] By providing the clearance groove 42 , the guide rod 83 can slide in the guide rail 82 along the extending direction of the installation groove 41 , thereby avoiding interference between the lifting cover 4 and the guide rod 83 .

[0080] By providing the guide groove 43 , the end of the guide rod 83 extending into the installation groove 41 can be guided to prevent the guide rod 83 from being offset during the sliding process and affecting the movement of the guide rod 83 in the guide rail 82 .

[0081] See also Figure 2 In some embodiments, a flip frame 63 is fixed on the rotating shaft 62 , and the support plate 61 is fixed on the rotating shaft 62 through the flip frame 63 .

[0082] The flip frame 63 is provided so that the flip frame 63 drives the support plate 61 to rotate. Specifically, one end of the flip frame 63 is fixed on the rotating shaft 62, and the other end is connected to the support plate 61.

[0083] See also Figure 4 , exemplarily, the flip frame 63 includes a U-shaped portion 631 and a support portion 632; the U-shaped portion 631 is a U-shaped structure with its opening facing the rotating shaft 62, and the two sides of the open end of the U-shaped portion 631 are symmetrically connected to the two sides of the rotating gear 71, and the other end of the U-shaped portion 631 is connected to the support plate 61; the support portion 632 is arranged at one end of the U-shaped portion 631 away from the open end; the two ends of the support portion 632 are respectively vertically connected to the support plate 61 and the U-shaped portion 631; wherein, a U-shaped groove for supporting the vehicle window is surrounded by the support portion 632, the U-shaped portion 631 and the support plate 61.

[0084] It should be understood that the U-shaped portion 631 and the support portion 632 are provided so as to define the above-mentioned U-shaped groove together with the support plate 61. Specifically, when the support plate 61 is in the above-mentioned lifting state, the end of the vehicle window is limited in the corresponding U-shaped groove.

[0085] The U-shaped portion 631 and the supporting portion 632 are provided to facilitate the supporting plate 61 to lift the vehicle window.

[0086] See also Figure 2In some possible embodiments, the adsorption and fixing component 5 includes an air pump 51, at least two fixing tubes 52 and at least two hoses 54; the air pump 51 is arranged on the lifting cover 4; at least two fixing tubes 52 are arranged at intervals at the bottom of the lifting cover 4, and a suction cup 53 is provided at the lower end of each fixing tube 52; at least two hoses 54 are connected to the air pump 51; and each hose 54 is connected to a corresponding fixing tube 52.

[0087] The air pump 51 is used to suck out the air between the suction cup 53 and the vehicle window through the hose 54 and the fixing tube 52, so as to adsorb the suction cup 53 on the vehicle window and simultaneously press and fix the vehicle window on the supporting frame 3 so as to perform air tightness detection on the vehicle window.

[0088] When the device provided in the present application is used for operation, first, the suction cup 53 drives the adsorbed and fixed vehicle window to be tightly attached to the support frame 3, and the smoke generator on the inner wall of the detection frame 2 is turned on. The smoke generator emits smoke, so that the detection frame 2 is filled with smoke. At this time, the air tightness of the vehicle window is tested by whether the smoke sensor in the support frame 3 senses the smoke. After the test, the lifting cylinder 81 drives the vehicle window on the suction cup 53 to move out of the detection frame 2, and drives one end of the guide rod 83 to slide in the guide track 82, and drives the rotating gear 71 and the rotating shaft 62 to rotate as a whole through the transmission rack 72, and rotates the support plate 61 to the bottom of the vehicle window for support and lifting, and then starts the air pump 51, loosens the vehicle window on the suction cup 53, and disassembles the vehicle window.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air tightness test device for EMU windows, comprising a test bench, a detection frame is provided on the top surface of the test bench, and a support frame is provided in the detection frame for horizontally supporting the bottom of the window, characterized in that: The EMU window air tightness test device also includes: A lifting cover plate is placed above the supporting frame; An adsorption and fixing component, provided on the lifting cover plate, and used for adsorption and fixing on the vehicle window; and A lifting assembly is provided on the lifting cover; the lifting assembly comprises two supporting plates arranged opposite to each other, the supporting plates are rotatably connected to the lifting cover, the supporting plates have a locking state when rotating to the upper part of the lifting cover, and the supporting plates also have a supporting state when rotating to the lower part of the lifting cover and lifting at the bottom of the vehicle window; Wherein, after the air tightness test of the vehicle window is completed, the lifting cover plate moves the vehicle window up by a preset distance through the adsorption and fixing assembly, and the support plate rotates from the anti-loosening state to the supporting state to lift the vehicle window.

2. The EMU window air tightness test device according to claim 1, characterized in that: The lifting cover is provided with two mounting grooves, which extend in opposite directions and correspondingly pass through two opposite end surfaces of the lifting cover; a rotating shaft is provided in each of the mounting grooves, and the axis of the rotating shaft is arranged perpendicular to the extension direction of the mounting groove; wherein the support plate is arranged on the rotating shaft, and the support plate forms the anti-loosening state and the supporting state when rotating with the rotating shaft.

3. The EMU window air tightness test device according to claim 2, characterized in that: The EMU window air tightness test device also includes: Two sets of transmission components are correspondingly arranged in the two installation grooves; the driven end of the transmission component is connected to the rotating shaft; A driving assembly is arranged on the test bench, and a power output end of the driving assembly is respectively connected to the active ends of the two groups of transmission assemblies through the lifting cover plate; Wherein, the driving assembly drives the rotating shaft to rotate through the transmission assembly.

4. The EMU window air tightness test device as claimed in claim 3, characterized in that: The transmission assembly comprises: A rotating gear, fixedly mounted on the rotating shaft, forming the driven end; A transmission rack is slidably connected in the installation groove along the extension direction of the installation groove; one end of the transmission rack is meshed with the rotating gear for transmission, and the other end of the transmission rack is connected to the power output end of the driving component to form the active end.

5. The EMU window air tightness test device according to claim 4, characterized in that: The drive assembly comprises: A lifting cylinder is arranged on the test bench, and a power output end of the lifting cylinder is connected to the lifting cover plate; Two guide rails are arranged one by one corresponding to the two groups of transmission assemblies; the lower ends of the guide rails are fixed to the detection frame, the upper ends of the guide rails extend upward to be connected to the fixed frame of the test bench, and the two guide rails have arc structures protruding toward each other; Two guide rods, corresponding to the two guide rails one by one, the guide rods are slidably connected in the corresponding guide rails, and one end of the guide rod passes through the lifting cover and is fixedly connected to the transmission rack; When the lifting cylinder drives the lifting cover to move up and down, the guide rod slides in the guide track; when the guide rod slides in the arc structure, the guide rod drives the transmission rack to slide horizontally in the installation groove along the extension direction of the installation groove, so that the rotating gear drives the rotating shaft to rotate.

6. The EMU window air tightness test device as claimed in claim 5, characterized in that: The guide track comprises: A first vertical track extending upward from the detection frame along a vertical direction; an arc track, disposed at the upper end of the first vertical track, the arc track having the arc structure; and A second vertical track is provided at the upper end of the arc track and extends upward in a vertical direction to be connected with the fixing frame; When the guide rod slides up and down in the arc track, the guide rod drives the transmission rack to slide horizontally along the extension direction of the installation groove, so that the support plate rotates in the anti-loosening state and switches between the supporting state.

7. The EMU window air tightness test device according to claim 5 or 6, characterized in that: A clearance groove is provided on one side of the groove wall of the installation groove, and the clearance groove has the same extension direction as the installation groove, and the clearance groove runs through the groove wall of the installation groove to the side of the lifting cover plate facing the guide rail; one end of the guide rod passes through the clearance groove and is fixedly connected to the transmission rack; A guide groove is provided on the groove wall on the other side of the installation groove, and the extension direction of the guide groove is the same as that of the giving way groove; one end of the guide rod that penetrates into the installation groove is slidably connected in the guide groove.

8. The EMU window air tightness test device as claimed in claim 4, characterized in that: A flip frame is fixed on the rotating shaft, and the support plate is fixed on the rotating shaft through the flip frame.

9. The EMU window air tightness test device according to claim 8, characterized in that: The flip frame includes: A U-shaped portion, which is a U-shaped structure with its opening facing the rotating shaft, two sides of the opening end of the U-shaped portion are symmetrically connected to two sides of the rotating gear, and the other end of the U-shaped portion is connected to the support plate; A support portion is provided at one end of the U-shaped portion away from the opening end; two ends of the support portion are respectively vertically connected to the support plate and the U-shaped portion; Wherein, a U-shaped groove for supporting the vehicle window is surrounded by the support portion, the U-shaped portion and the support plate.

10. The EMU window air tightness test device according to claim 1, characterized in that: The adsorption and fixing component comprises: An air pump, arranged on the lifting cover; At least two fixing tubes are arranged at intervals at the bottom of the lifting cover plate, and a suction cup is provided at the lower end of each fixing tube; and At least two hoses are connected to the air pump; each of the hoses is connected to a corresponding fixed pipe.

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