A durability testing device for a RV window lifting structure

Abstract

The present invention belongs to the technical field related to automobile manufacturing, and is specifically a durability test device for a RV window lifting structure, comprising a workbench, on which a clamping mechanism for positioning a RV door is arranged; the clamping mechanism comprises a positioning seat slidably connected to one side of the upper end surface of the workbench, and clamping blocks are slidably connected to both sides of the upper end of the positioning seat; the workbench is also provided with an infrared sensing line drawing mechanism for recording the stuck position of the window. The present invention realizes the use of an infrared sensing line drawing mechanism, so that each lifting and lowering condition of the window can be recorded in the controller in the form of lines, and can be viewed using a display screen, thereby making it easier to view the lifting and lowering condition of the window, eliminating the process of workers visually observing the lifting and lowering condition of the window, and reducing the labor intensity of workers.

Description

Technical Field

[0001] The invention belongs to the technical field related to automobile manufacturing, and specifically is a durability testing device for a window lifting structure of a recreational vehicle. Background Art

[0002] RV windows are an important part of RVs. Currently, the window glass lifting methods of RVs are divided into manual and electric types. The manual lifting structure requires users to manually lift the windows, so its durability is crucial to user experience. During the production and processing of RV windows, durability tests are conducted on them to ensure that the manual lifting structure can still maintain a smooth and light operation experience after long-term use.

[0003] The patent with the announcement number CN216207505U discloses a window shake tester, including an adjustment mechanism, including a pair of rotating sleeves; the rotating mechanism is arranged on the adjustment mechanism, and the shaking mechanism is arranged on one end of the adjustment mechanism and connected to the rotating mechanism; the adjustment mechanism is used to adjust the position of the rotating mechanism so that the rotating mechanism is connected to the window lifting drive shaft, and the shaking mechanism is connected to the window lifting rocker arm. This patent facilitates mode switching when performing window shake testing, and then facilitates the testing of manual and electric windows, reduces the cost investment of enterprises, is convenient for operation, and has strong stability after switching, and has strong practicality.

[0004] However, the above technical solution still has the following deficiencies in practical application:

[0005] The durability of the window lifting structure is determined by automatically turning the handle of the hand-cranked lifting structure to raise and lower the window multiple times and observing the lifting and lowering conditions of the window. However, since the window is frequently raised and lowered multiple times, workers will experience visual fatigue when observing the lifting and lowering conditions of the window by visual means, which not only increases the labor intensity of the workers, but also makes it easy for them to fail to discover problems with the lifting structure due to negligence, thereby affecting the accuracy of the durability test results. In addition, since the lifting and lowering conditions are observed visually, it is not easy to intuitively determine where the problem occurs in the window and the extent of the problem, which makes it inconvenient for workers to find the cause of the problem and is not conducive to subsequent maintenance of the window.

[0006] To this end, the present invention provides a durability testing device for a RV window lifting structure. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a durability testing device for a RV window lifting structure.

[0008] The technical solution adopted by the present invention to solve the technical problem is: a durability testing device for a RV window lifting structure, comprising a workbench, on which a clamping mechanism for positioning a RV door is arranged;

[0009] The clamping mechanism comprises a positioning seat slidably connected to one side of the upper surface of the workbench, and both sides of the upper end of the positioning seat are slidably connected to clamping blocks 1;

[0010] The workbench is also provided with an infrared sensing line drawing mechanism for recording the stuck position of the vehicle window;

[0011] The infrared sensing line drawing mechanism includes a mounting plate fixedly connected to one side of the upper end surface of the workbench, a slide groove plate 2 is slidably connected to one side of the upper end surface of the mounting plate, a frame is slidably connected to the inner side of the slide groove plate 2, a slide rod 3 is fixedly connected to both ends of one side of the frame, a threaded block is slidably connected to the slide rod 3, an infrared transmitter is fixedly connected to the front end surface of the threaded block, two clamping blocks 3 are slidably connected to the rear end surface of the threaded block, and a whiteboard pen is clamped in cooperation with the two clamping blocks 3, a fixing plate is fixedly connected to the rear side of the upper end surface of the mounting plate, a whiteboard is fixedly connected to one side of the fixing plate, and the whiteboard pen can draw black lines on the whiteboard.

[0012] Preferably, a lower end of the clamping block is threadedly connected to a bidirectional threaded rod 1, and both ends of the bidirectional threaded rod 1 are rotatably disposed on a positioning seat.

[0013] Preferably, the workbench is also provided with a clamping and rotating mechanism for rotating the window lifting handle, the clamping and rotating mechanism includes two support plates fixedly connected to one side of the upper end surface of the workbench, a sliding rod 1 is fixedly connected to both ends of the left support plate, a sliding groove plate 1 is slidably connected to the sliding rod 1, an adjusting plate is slidably connected to the inner side of the sliding groove plate 1, a groove block is rotatably provided on one side of the upper end of the adjusting plate, a telescopic block is plugged and slidably connected to the groove block, one end of the telescopic block is fixedly connected to a concave plate, a sliding rod 2 is fixedly connected to one side of the concave plate, and clamping blocks 2 are slidably connected to both sides of the sliding rod 2.

[0014] Preferably, threaded rod 1 is rotatably provided at both ends of the support plate on the right side, and threaded rod 1 is threadedly connected to one side of slide plate 1, threaded rod 2 is threadedly connected to the lower end of the adjustment plate, and both ends of threaded rod 2 are rotatably provided on slide plate 1, and threaded rod 4 is threadedly connected to one side of the positioning seat, and both ends of threaded rod 4 are rotatably provided on the workbench.

[0015] Preferably, a motor 1 is fixedly connected to the upper side of the front end surface of the adjustment plate, the output end of the motor 1 is fixedly connected to one end of the groove block, a threaded rod 3 is rotatably provided on one side of the groove block, the threaded rod 3 is threadedly connected to the telescopic block, one end of the clamping block 2 is threadedly connected to a bidirectional threaded rod 2, and both ends of the bidirectional threaded rod 2 are rotatably provided on the concave plate.

[0016] Preferably, an electric push rod 1 is fixedly connected to one side of the upper end surface of the mounting plate, the piston end of the electric push rod 1 is fixedly connected to one side of the slide plate 2, the lower end of the frame is threadedly connected to a threaded rod 5, both ends of the threaded rod 5 are rotatably set on the slide plate 2, one side of the slide plate 2 is fixedly connected to a motor 2, and the output end of the motor 2 is fixedly connected to one end of the threaded rod 5.

[0017] Preferably, one side of the threaded block is threadedly connected to a threaded rod six, both ends of the threaded rod six are rotatably arranged on the frame, one side of the upper end of the frame is fixedly connected to a motor three, and the output end of the motor three is fixedly connected to one end of the threaded rod six.

[0018] Preferably, one end of the clamp block three is threadedly connected to a bidirectional threaded rod three, and both ends of the bidirectional threaded rod three are rotatably arranged on the threaded block.

[0019] Preferably, two sliding rods four are slidably connected to one side of the fixed plate, one end of the sliding rod four is fixedly connected to a whiteboard eraser, the whiteboard eraser fits the surface of the whiteboard, one side of the fixed plate is fixedly connected to an electric push rod two, the piston end of the electric push rod two is fixedly connected to one side of the whiteboard eraser, and a scale is provided on one side of the front end of the whiteboard.

[0020] Preferably, an industrial camera is fixedly connected to one side of the upper end surface of the frame, a controller is provided on the front end side of the workbench, a display screen is provided on the controller, and the industrial camera can transmit the captured image to the controller and display it on the display screen.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The durability testing device for the RV window lifting structure described in the present invention places the RV door to be subjected to the durability test on a positioning seat, and then rotates the bidirectional threaded rod to drive the clamping blocks on both sides to slide simultaneously and approach each other until the clamping blocks on both sides are in contact with the RV door, so that the RV door can be fixed, thereby ensuring the stability of the door during the RV window durability test.

[0023] 2. The durability testing device for the RV window lifting structure described in the present invention utilizes an infrared sensing line drawing mechanism to record the lifting and lowering conditions of the window in the form of lines in the controller each time, and to view them on a display screen. Workers can judge the number of jams by observing the number of times the horizontal lines appear, judge the duration of the jam by the length of the horizontal lines, and judge whether the window is stuck during the rising or falling process by the direction of the horizontal lines, thereby making it easier to check the lifting and lowering conditions of the window, eliminating the need for workers to visually observe the lifting and lowering conditions of the window, reducing the labor intensity of workers, and avoiding the situation where problems with the lifting structure are not discovered due to negligence, thereby ensuring the accuracy of the durability test results. At the same time, it can also more intuitively determine the specific position of the window where the jam occurred and the severity of the jam, thereby making it easier for workers to find the cause of the problem and facilitating subsequent repairs of the window. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure at the positioning seat;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure at the adjustment plate;

[0028] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure at the mounting plate;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure at another viewing angle of the positioning seat;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the thread block;

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the eraser of the whiteboard;

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure at the scale.

[0034] In the figure: 1, workbench; 2, display screen; 3, controller; 4, positioning seat; 5, clamp block 1; 6, mounting plate; 7, frame; 8, two-way threaded rod 1; 9, support plate; 10, slide rod 1; 11, threaded rod 1; 12, slide plate 1; 13, threaded rod 2; 14, motor 1; 15, adjustment plate; 16, groove block; 17, threaded rod 3; 18, telescopic block; 19, concave plate; 20, two-way threaded rod 2; 21, clamp block 2; 22, slide Rod two; 23, threaded rod four; 24, electric push rod one; 25, slide plate two; 26, motor two; 27, threaded rod five; 28, scale; 29, industrial camera; 30, infrared transmitter; 31, slide rod three; 32, threaded rod six; 33, motor three; 34, fixed plate; 35, whiteboard; 36, whiteboard eraser; 37, electric push rod two; 38, slide rod four; 39, threaded block; 40, two-way threaded rod three; 41, whiteboard pen; 42, clamp block three. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below 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 creative work are within the scope of protection of the present invention.

[0036] Please refer to Figure 1-Figure 9 , the present invention provides a technical solution: a durability testing device for a RV window lifting structure, comprising a workbench 1, on which a clamping mechanism for positioning a RV door is provided;

[0037] The clamping mechanism includes a positioning seat 4 slidably connected to one side of the upper end surface of the workbench 1, and clamping blocks 5 are slidably connected to both sides of the upper end of the positioning seat 4;

[0038] The workbench 1 is also provided with an infrared sensing line drawing mechanism for recording the stuck position of the vehicle window;

[0039] The infrared sensing line drawing mechanism includes a mounting plate 6 fixedly connected to one side of the upper end surface of the workbench 1, a slide plate 25 is slidably connected to one side of the upper end surface of the mounting plate 6, a frame 7 is slidably connected to the inner side of the slide plate 25, a slide rod 3 31 is fixedly connected to both ends of one side of the frame 7, a threaded block 39 is slidably connected to the slide rod 31, an infrared emitter 30 is fixedly connected to the front end surface of the threaded block 39, and two clamping blocks 3 42 are slidably connected to the rear end surface of the threaded block 39, and a whiteboard pen 41 is provided with the two clamping blocks 3 42 in cooperation with each other, a fixing plate 34 is fixedly connected to the rear side of the upper end surface of the mounting plate 6, a whiteboard 35 is fixedly connected to one side of the fixing plate 34, and the whiteboard pen 41 can draw black lines on the whiteboard 35.

[0040] In this embodiment, Figure 2and Figure 6 As shown, the lower end of the clamp block 5 is threadedly connected to a bidirectional threaded rod 8, and both ends of the bidirectional threaded rod 8 are rotatably disposed on the positioning seat 4.

[0041] Specifically, the RV door to be subjected to the durability test is placed on the positioning seat 4, and then the bidirectional threaded rod 8 is rotated to drive the clamping blocks 5 on both sides to slide simultaneously and approach each other until the clamping blocks 5 on both sides are in contact with the RV door, so that the RV door can be fixed, thereby ensuring the stability of the door during the RV window durability test.

[0042] In this embodiment, Figure 1-Figure 9 As shown, the workbench 1 is also provided with a clamping and rotating mechanism for rotating the window lifting handle, the clamping and rotating mechanism includes two support plates 9 fixedly connected to one side of the upper end surface of the workbench 1, two ends of the left support plate 9 are fixedly connected with slide bars 10, the slide bar 10 is slidably connected with a slide groove plate 12, the inner side of the slide groove plate 12 is slidably connected with an adjustment plate 15, one side of the upper end of the adjustment plate 15 is rotatably provided with a groove block 16, the groove block 16 is plugged and slidably connected with a telescopic block 18, one end of the telescopic block 18 is fixedly connected with a concave plate 19, one side of the concave plate 19 is fixedly connected with a slide bar 22, and both sides of the slide bar 22 are slidably connected with clamping blocks 21.

[0043] A threaded rod 11 is rotatably provided at both ends of the right support plate 9, and the threaded rod 11 is threadedly connected to one side of a slide plate 12, and a threaded rod 2 13 is threadedly connected to the lower end of the adjustment plate 15, and both ends of the threaded rod 2 13 are rotatably provided on the slide plate 12, and a threaded rod 4 23 is threadedly connected to one side of the positioning seat 4, and both ends of the threaded rod 4 23 are rotatably provided on the workbench 1.

[0044] A motor 14 is fixedly connected to the upper side of the front end surface of the adjustment plate 15, and the output end of the motor 14 is fixedly connected to one end of the groove block 16. A threaded rod 3 17 is rotatably provided on one side of the groove block 16. The threaded rod 3 17 is threadedly connected to the telescopic block 18. A bidirectional threaded rod 20 is threadedly connected to one end of the clamping block 21, and both ends of the bidirectional threaded rod 20 are rotatably provided on the concave plate 19.

[0045] An electric push rod 24 is fixedly connected to one side of the upper end surface of the mounting plate 6, and the piston end of the electric push rod 24 is fixedly connected to one side of the slide plate 25. A threaded rod 5 27 is threadedly connected to the lower end of the frame 7, and both ends of the threaded rod 5 27 are rotatably set on the slide plate 25. A motor 26 is fixedly connected to one side of the slide plate 25, and the output end of the motor 26 is fixedly connected to one end of the threaded rod 5 27.

[0046] One side of the threaded block 39 is threadedly connected to a threaded rod 6 32 , both ends of the threaded rod 6 32 are rotatably arranged on the frame 7 , one side of the upper end of the frame 7 is fixedly connected to a motor 33 , and the output end of the motor 33 is fixedly connected to one end of the threaded rod 6 32 .

[0047] One end of the clamp block 3 42 is threadedly connected to a bidirectional threaded rod 3 40 , and both ends of the bidirectional threaded rod 3 40 are rotatably disposed on the thread block 39 .

[0048] Two sliding rods 4 38 are slidably connected to one side of the fixed plate 34, and one end of the sliding rod 4 38 is fixedly connected to a whiteboard eraser 36, which fits the surface of the whiteboard 35. An electric push rod 2 37 is fixedly connected to one side of the fixed plate 34, and the piston end of the electric push rod 2 37 is fixedly connected to one side of the whiteboard eraser 36. A scale 28 is set on one side of the front end of the whiteboard 35.

[0049] An industrial camera 29 is fixedly connected to one side of the upper end surface of the frame 7, a controller 3 is provided on the front end side of the workbench 1, and a display screen 2 is provided on the controller 3. The industrial camera 29 can transmit the captured images to the controller 3 and display them on the display screen 2.

[0050] Specifically, when the existing window tester is used, the handle of the hand-cranked lifting structure is automatically turned to raise and lower the window multiple times, and the lifting and lowering condition of the window is observed to judge the durability of the window lifting structure. However, since the window is frequently raised and lowered multiple times, workers will experience visual fatigue when observing the lifting and lowering condition of the window by visual means, which not only increases the labor intensity of the workers, but also makes it easy for them to fail to find the problems of the lifting structure due to negligence, thereby affecting the accuracy of the durability test results. In addition, since the lifting and lowering condition is observed visually, it is not easy to judge where the problem occurs in the window, which is not convenient for workers to find the cause of the problem, and is not conducive to subsequent maintenance of the window.

[0051] Therefore, in order to solve this problem, the present embodiment is used for the hand-cranked lifting structure when in use; when the door is fixed, according to the position of the rotating shaft of the door lifting structure, the threaded rod 4 23 is rotated to make the positioning seat 4 move horizontally, and the sliding groove plate 12 is lifted and lowered by rotating the threaded rod 11 until the output shaft of the motor 14 coincides with the axis of the rotating shaft of the door lifting structure, and then according to the position of the handle of the door lifting structure, the threaded rod 2 13 and the threaded rod 3 17 are rotated respectively, and the threaded rod 2 13 can drive the adjustment plate 15 to slide on the inner side of the sliding groove plate 12, and when the threaded rod 3 17 is rotated, the telescopic block 18 can slide on the inner side of the groove block 16, so that the handle of the door lifting structure is extended between the two clamping blocks 21, and then the bidirectional threaded rod 2 20 is rotated, so that the two clamping blocks 21 move simultaneously and approach each other to clamp the handle, and at this time, the groove block 16 is driven to rotate by the motor 14, so that the handle of the door lifting structure can be rotated, thereby realizing automatic lifting of the window;

[0052] Furthermore, before the handle of the door lifting structure is driven to rotate, the window is at the lowest position, and the motor 33 is used to drive the threaded rod 6 32 to rotate, so that the threaded block 39 is raised and lowered, and the infrared transmitter 30 is started until the infrared light emitted by the infrared transmitter 30 can irradiate the upper edge of the window. When the window starts to rise, the infrared transmitter 30 will also rise under the rotation of the threaded rod 6 32. Moreover, since the tip of the whiteboard pen 41 is in contact with the surface of the whiteboard 35, when the infrared transmitter 30 rises, the whiteboard pen 41 will draw a black straight line on the whiteboard 35. Since the infrared transmitter 30 moves at the same speed as the window, if the window does not get stuck during the rising process, the light emitted by the infrared transmitter 30 can continuously irradiate the window surface. Once the window is stuck, the window will suddenly stop rising, and the light emitted by the infrared transmitter 30 cannot shine on the window. At this time, the motor 33 will stop working due to the object that the infrared transmitter 30 cannot detect. Moreover, when the motor 33 stops working, the motor 26 will drive the threaded rod 5 27 to rotate, so that the frame 7 slides on the inner side of the slide plate 25, so that the whiteboard pen 41 can move horizontally to the left, so that the originally vertical line is bent. When the window resumes its moving state, the infrared transmitter 30 detects the window again, then the motor 26 stops working, and the infrared transmitter 30 continues to rise. When the window rises to the top, the industrial camera 29 will shoot the black lines on the whiteboard 35 and store the image in the controller. 3, at this time, the electric push rod 1 24 will drive the slide plate 25 to slide, so that the whiteboard pen 41 is away from the whiteboard 35, and then the electric push rod 2 37 drives the whiteboard eraser 36 to move horizontally, and the whiteboard eraser 36 is used to erase the lines on the whiteboard 35, and then the whiteboard pen 41 contacts the whiteboard 35 again, ready to descend, when the motor 14 is reversed, the window can be lowered, and when the window is lowered, the detection mode of the infrared transmitter 30 will change. When the upper edge of the window is slightly lower than the light emitted by the infrared transmitter 30, the infrared transmitter 30 will be synchronously lowered with the window. If the window is not stuck during the whole process, the infrared transmitter 30 will not detect the object at all, and the whiteboard pen 41 will still draw a straight line on the whiteboard 35. When the infrared transmitter 30 stops detecting the window, the whiteboard pen 41 continues to move to the right until the window continues to move. When the infrared transmitter 30 cannot detect the window, the whiteboard pen 41 moves downward again. When the window drops to the lowest position, the industrial camera 29 starts shooting again. Then, the above operation is repeated continuously, so that the lifting and lowering conditions of the window can be recorded in the controller 3 in the form of lines each time, and can be viewed using the display screen 2. Workers can judge the number of jams by observing the number of times the horizontal lines appear, the duration of the jams by the length of the horizontal lines, and the direction of the horizontal lines to judge whether the window is jammed during the rising or falling process, thereby making it easier to check the lifting and lowering conditions of the window.This eliminates the need for workers to visually observe the lifting and lowering conditions of the car windows, reduces the labor intensity of workers, and avoids the situation where problems with the lifting structure are not discovered due to negligence, thereby ensuring the accuracy of the durability test results. In addition, by matching the scale on the scale 28 corresponding to the line, it is possible to determine at what specific position the car window is stuck, thereby making it easier for workers to find the cause of the problem and facilitating subsequent repairs of the car windows.

[0053] Working principle: place the RV door to be tested for durability on the positioning seat 4, and then rotate the bidirectional threaded rod 8 to drive the clamping blocks 5 on both sides to slide simultaneously and approach each other, until the clamping blocks 5 on both sides are in contact with the RV door, so that the RV door can be fixed, thereby ensuring the stability of the door during the durability test of the RV window. When the door is fixed, rotate the threaded rod 4 23 according to the position of the rotating shaft of the door lifting structure to make the positioning seat 4 move horizontally, and rotate the threaded rod 11 to make the slide plate 12 rise and fall until the output shaft of the motor 14 coincides with the axis of the rotating shaft of the door lifting structure, and then rotate the threaded rod 2 13 and the threaded rod 3 17 according to the position of the door lifting structure handle, and the threaded rod 2 13 can drive the adjustment plate 15 on the slide plate When the two-way threaded rod 12 slides inside, and the threaded rod 3 17 rotates, the telescopic block 18 can slide inside the groove block 16, so that the handle of the door lifting structure extends between the two clamping blocks 21, and then the two-way threaded rod 20 is rotated, so that the two clamping blocks 21 move simultaneously and approach each other to clamp the handle. At this time, the groove block 16 is driven to rotate by the motor 14, so that the handle of the door lifting structure can be rotated, thereby realizing automatic lifting of the window; and before the handle of the door lifting structure is driven to rotate, the window is in the lowest position, and the motor 33 is used to drive the threaded rod 6 32 to rotate, so that the threaded block 39 is lifted and lowered, and the infrared transmitter 30 is started until the infrared rays emitted by the infrared transmitter 30 can irradiate the upper edge of the window. When the window starts to rise, the infrared rays The transmitter 30 will also rise under the rotation of the threaded rod 6 32, and because the tip of the whiteboard pen 41 is in contact with the surface of the whiteboard 35, when the infrared transmitter 30 rises, the whiteboard pen 41 will draw a black straight line on the whiteboard 35, and because the infrared transmitter 30 moves at the same speed as the window, if the window does not get stuck during the rising process, the light emitted by the infrared transmitter 30 can continue to irradiate the window surface, and once the window gets stuck, the window will suddenly stop rising, and the light emitted by the infrared transmitter 30 will not be able to irradiate the window. At this time, the motor 33 will stop working due to the object that the infrared transmitter 30 cannot detect, and when the motor 33 stops working, the motor 26 will drive the threaded rod 5 27 The frame 7 is rotated to slide on the inner side of the second slide plate 25, so that the whiteboard pen 41 can be moved horizontally to the left, so that the originally vertical lines are bent. When the car window resumes the moving state, the infrared transmitter 30 detects the car window again, then the motor 26 stops working, and the infrared transmitter 30 continues to rise. When the car window rises to the top, the industrial camera 29 will take a picture of the black lines on the whiteboard 35 and store the image in the controller 3. At this time, the electric push rod 1 24 will drive the second slide plate 25 to slide, so that the whiteboard pen 41 is away from the whiteboard 35, and then the electric push rod 2 37 drives the whiteboard eraser 36 to move horizontally, and the whiteboard eraser 36 is used to erase the lines on the whiteboard 35, and then the whiteboard pen 41 contacts the whiteboard 35 again, ready to descend. When the motor 14 reverses,The window can be lowered, and when the window is lowered, the detection mode of the infrared transmitter 30 will change. When the upper edge of the window is slightly lower than the light emitted by the infrared transmitter 30, the infrared transmitter 30 will be lowered synchronously with the window. If the window is not stuck during the whole process, the infrared transmitter 30 will not detect the object at all, and the whiteboard pen 41 will still draw a straight line on the whiteboard 35. If the infrared transmitter 30 detects the window, it means that the window is stuck. At this time, the infrared transmitter 30 will stop again, and the whiteboard pen 41 will continue to move to the right until the window continues to move. When the infrared transmitter 30 cannot detect the window, the whiteboard pen 41 will move downward again. When the window drops to the lowest position, the industrial camera 29 will start shooting again, and then the above operation will be repeated continuously to make the window rise and fall each time. The condition is recorded in the controller 3 in the form of lines and can be viewed using the display screen 2. Workers can determine the number of jams by observing the number of times the horizontal lines appear, determine the duration of the jam by the length of the horizontal lines, and determine whether the window is jammed during the rising or falling process by the direction of the horizontal lines, thereby making it easier to check the lifting and lowering conditions of the window, eliminating the need for workers to visually observe the lifting and lowering conditions of the window, reducing the labor intensity of workers, and avoiding the situation where problems with the lifting structure are not discovered due to negligence, thereby ensuring the accuracy of the durability test results. In addition, by combining the scale on the scale 28 corresponding to the lines, it is possible to determine at what specific position the window is jammed, thereby making it easier for workers to find the cause of the problem, and facilitating subsequent repairs of the window.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A durability testing device for a RV window lifting structure, comprising a workbench, characterized in that: The workbench is provided with a clamping mechanism for positioning the RV door; The clamping mechanism comprises a positioning seat slidably connected to one side of the end surface of the workbench, and clamping blocks 1 are slidably connected to both sides of the upper end of the positioning seat; The workbench is also provided with an infrared sensing line drawing mechanism for recording the stuck position of the car window; The infrared sensing line drawing mechanism comprises a mounting plate fixedly connected to one side of the end surface of the workbench, a slide groove plate 2 is slidably connected to one side of the end surface of the mounting plate, a frame is slidably connected to the inner side of the slide groove plate 2, a slide rod 3 is fixedly connected to both ends of one side of the frame, a threaded block is slidably connected to the slide rod 3, an infrared transmitter is fixedly connected to the front end surface of the threaded block, two clamping blocks 3 are slidably connected to the rear end surface of the threaded block, a whiteboard pen is clamped and arranged in cooperation with the two clamping blocks 3, a fixing plate is fixedly connected to the rear side of the end surface of the mounting plate, a whiteboard is fixedly connected to one side of the fixing plate, and the whiteboard pen can draw black lines on the whiteboard, an electric push rod 1 is fixedly connected to one side of the end surface of the mounting plate, a piston end of the electric push rod 1 is fixedly connected to one side of the slide groove plate 2, a threaded rod 5 is threadedly connected to the lower end of the frame, and both ends of the threaded rod 5 are rotatably arranged On the slide plate two, one side of the slide plate two is fixedly connected with motor two, the output end of motor two is fixedly connected to one end of threaded rod five, one side of the threaded block is threadedly connected with threaded rod six, both ends of threaded rod six are rotatably set on the frame, one side of the upper end of the frame is fixedly connected with motor three, the output end of motor three is fixedly connected to one end of threaded rod six, one end of clamp block three is threadedly connected with bidirectional threaded rod three, both ends of bidirectional threaded rod three are rotatably set on the threaded block, one side of the fixed plate is slidably connected with two sliding rods four, one end of sliding rod four is fixedly connected with a whiteboard eraser, the whiteboard eraser is fitted with the surface of the whiteboard, one side of the fixed plate is fixedly connected with electric push rod two, the piston end of electric push rod two is fixedly connected to one side of the whiteboard eraser, a scale is set on one side of the front end of the whiteboard, one side of the upper end surface of the frame is fixedly connected with an industrial camera, and the front end of the workbench is fixedly connected with an industrial camera. A controller is arranged on the side, and a display screen is arranged on the controller. The industrial camera transmits the captured images to the controller and displays them on the display screen. Moreover, before the handle of the door lifting structure is driven to turn, the window is in the lowest position, and the threaded block is driven to rise and fall. The infrared light emitted by the infrared transmitter irradiates the upper edge of the window. When the window starts to rise, the infrared transmitter rises, and the whiteboard pen draws a black straight line on the whiteboard. If the window is not stuck during the rising process, the light emitted by the infrared transmitter continues to irradiate the surface of the window. Once the window is stuck, the window stops rising, and the light emitted by the infrared transmitter cannot irradiate the window. At this time, the infrared transmitter cannot detect the object and stops working. When motor three stops working, the whiteboard pen Move horizontally to the left, causing the originally vertical lines to bend. When the car window resumes its moving state, the infrared transmitter detects the car window and continues to rise. When the car window rises to the top, the industrial camera shoots the black lines on the whiteboard and stores the image in the controller. At this time, the whiteboard pen is away from the whiteboard, the whiteboard eraser moves horizontally, and the whiteboard eraser erases the lines on the whiteboard. The whiteboard pen contacts the whiteboard again and prepares to descend. When the car window descends, the detection mode of the infrared transmitter will change. When the upper edge of the car window is slightly lower than the light emitted by the infrared transmitter, the infrared transmitter and the car window descend synchronously. If the car window is not stuck during the whole process, the infrared transmitter will not detect the object at all, and the whiteboard pen will still draw a straight line on the whiteboard. If the infrared transmitter detects the car window,The car window is stuck, the infrared transmitter stops, and the whiteboard pen continues to move to the right until the car window continues to move. After the infrared transmitter cannot detect the car window, the whiteboard pen moves downward. When the car window drops to the lowest position, the industrial camera starts shooting. Each lifting and lowering condition of the car window is recorded in the controller in the form of lines and can be viewed on the display.

2. The durability testing device for a RV window lifting structure according to claim 1, characterized in that: A two-way threaded rod 1 is threadedly connected to a lower end of the clamping block, and both ends of the two-way threaded rod 1 are rotatably arranged on the positioning seat.

3. The durability testing device for a RV window lifting structure according to claim 1, characterized in that: The workbench is also provided with a clamping and rotating mechanism for rotating the window lifting handle, the clamping and rotating mechanism includes two support plates fixedly connected to one side of the end surface of the workbench, a slide rod 1 is fixedly connected to both ends of the left support plate, a slide rod 1 is slidably connected to a slide groove plate 1, an adjustment plate is slidably connected to the inner side of the slide groove plate 1, a groove block is rotatably provided on one side of the upper end of the adjustment plate, a telescopic block is plugged and slidably connected to the groove block, one end of the telescopic block is fixedly connected to a concave plate, a slide rod 2 is fixedly connected to one side of the concave plate, and clamping blocks 2 are slidably connected to both sides of the slide rod 2.

4. The durability testing device for a RV window lifting structure according to claim 3 is characterized in that: Threaded rod 1 is rotatably set at both ends of the right support plate, threaded rod 1 is threadedly connected to one side of the slide plate 1, threaded rod 2 is threadedly connected to the lower end of the adjustment plate, both ends of threaded rod 2 are rotatably set on the slide plate 1, threaded rod 4 is threadedly connected to one side of the positioning seat, and both ends of threaded rod 4 are rotatably set on the workbench.

5. The durability testing device for a RV window lifting structure according to claim 3 is characterized in that: A motor is fixedly connected to the upper side of the front end surface of the adjustment plate, and the output end of the motor is fixedly connected to one end of the groove block. A threaded rod three is rotatably provided on one side of the groove block, and the threaded rod three is threadedly connected to the telescopic block. A bidirectional threaded rod two is threadedly connected to one end of the clamping block two, and both ends of the bidirectional threaded rod two are rotatably provided on the concave plate.

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