An angle-adjustable hail testing device

Abstract

This utility model relates to an angle-adjustable hail testing device, comprising a base frame, a mounting frame, and an adjustment frame. The adjustment frame slides back and forth on the upper end of the base frame and slides left and right on the front end of the ice hockey launching device, allowing the launching position of the ice hockey to be freely adjusted in the horizontal plane. Photovoltaic modules are mounted on the mounting frame. The guide plate on the inner side of the base frame and its semi-circular guide hole cooperate with the fastener at the lower end of the mounting frame. Moving the fastener along the guide hole drives the mounting frame to rotate back and forth around the rotation connection point, flexibly adjusting the tilt angle of the photovoltaic modules. By tightening the fastener passing through the guide hole, the mounting frame is stably locked at any desired tilt angle, effectively solving the problem of ice hockey only impacting vertically. It simultaneously controls the tilt angle of the mounting frame with photovoltaic modules and the horizontal position of the launcher, accurately simulating the real working condition of hail impacting photovoltaic modules at different tilt angles, thus improving the accuracy of photovoltaic module reliability testing.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module reliability testing, and in particular to an angle-adjustable hail testing device. Background Technology

[0002] Hailstones exert a significant instantaneous impact on photovoltaic (PV) modules, causing substantial damage. Therefore, PV modules must undergo hail impact reliability testing before production. Existing PV module hail testing equipment includes a base frame, mounting frame, movable frame, and a hailstone launching device. The mounting frame is fixed within the base frame, and the PV modules are mounted on it. The hailstone launching device is slidable left and right on the movable frame, which in turn is slidable forward and backward on the base frame. Activating the launching device launches hailstones that impact the PV modules vertically to simulate hail impact. However, because hailstones fall at an angle and do not strike the PV module surface perpendicularly, the impact cannot be accurately simulated, affecting the test results.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses an angle-adjustable hail testing device to solve the problem that when hail falls normally and impacts photovoltaic modules, it has an inclined angle and is not perpendicular to the surface of the photovoltaic module, which makes it impossible to accurately simulate the impact of hail on the photovoltaic module and affects the test results.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An angle-adjustable hail testing device, characterized in that it comprises:

[0007] The base frame has guide plates at both ends on the inner side of the base frame, and guide holes are provided on the guide plates, which extend in a semi-circular arc shape.

[0008] The mounting frame has its left and right ends rotatably connected to the left and right ends of the inner side of the base frame, and the photovoltaic module is mounted on the mounting frame. The lower ends of the left and right ends of the mounting frame are provided with fasteners, which pass through the guide holes. The fasteners move back and forth along the extension direction of the guide holes, and the fasteners drive the mounting frame to rotate back and forth, fixing the fasteners. The fasteners fix the two sides of the mounting frame to the two guide plates.

[0009] An adjustment frame is slidably connected to the upper ends of the left and right ends of the base frame and located at the upper end of the mounting frame. An ice hockey launching device is slidably connected to the front end of the adjustment frame.

[0010] A further technical solution is that the guide plate is semi-circular, the connection points between the left and right ends of the mounting bracket and the left and right ends of the inner side of the base frame are located at the center of the two guide plates, and the guide hole extends in a semi-circular arc around the center of the guide plate.

[0011] A further technical solution is that the lower ends of the left and right ends of the mounting bracket are provided with extension columns, and the outer side of the extension columns is provided with screw holes; the fastener is a bolt, the bolt passes through the guide hole and is threaded into the screw hole, the shank of the bolt is clearance-fitted with the guide hole, the head of the bolt is larger than the clearance of the guide hole, the shank of the bolt moves along the guide hole, the bolt is tightened, and the head of the bolt clamps the guide plate to fix the tilt angle of the mounting bracket.

[0012] A further technical solution is that a central shaft is fixedly provided at both ends of the mounting frame, and the central shaft is rotatably connected to the left and right ends of the inner side of the base frame; a mounting block is provided at either end of the left or right ends of the base frame; the mounting frame also includes a drive assembly, the drive assembly includes a drive shaft and a transmission belt, the drive shaft is rotatably mounted on the mounting block, the transmission belt connects the inner end of the drive shaft to the outer end of the central shaft, and the outer end of the drive shaft extends out of the mounting block.

[0013] A further technical solution is that the guide plate is provided with a scale, the scale is located at the lower end of the guide hole and the scale is extended in a semi-circular arc shape.

[0014] A further technical solution is as follows: the upper ends of the left and right ends of the base frame are provided with first slide rails along the width direction; the left and right ends of the adjustment frame are provided with first sliders; the lower end of the first slider is slidably connected to the upper end of the first slide rail and the upper end of the first slide rail is engaged with the lower end of the first slider; the upper and lower ends of the front end of the adjustment frame are provided with second slide rails along the length direction; the upper and lower ends of the rear end of the hockey launching device are provided with second sliders; the rear end of the second slider is slidably connected to the front end of the second slide rail and the front end of the second slide rail is engaged with the rear end of the second slider.

[0015] A further technical solution is that the hockey launching device includes a back plate, a pressure cylinder, a mounting cylinder, and a square guide tube. Two second sliders are located at the upper and lower ends of the rear end of the back plate. The axis of the pressure cylinder is vertically oriented, and the pressure cylinder slides vertically to the front end of the back plate. The top end of the pressure cylinder is connected to a pressure source, and the bottom end of the pressure cylinder is a compressed air outlet. A mounting cylinder is fixed to the lower end of the front end of the back plate. The mounting cylinder is coaxially arranged at the lower end of the pressure cylinder. An elastic ring is fixed to the inner wall of the mounting cylinder. The hockey puck is placed on the mounting cylinder. Inside the mounting cylinder, the elastic ring supports the lower surface of the ice puck. The square guide tube is located at the lower end of the front end of the back plate. The square guide tube is coaxially arranged at the lower end of the mounting cylinder, and the lower part of the mounting cylinder extends into the square guide tube. The lower end of the inside of the square guide tube is provided with a first laser and a second laser at intervals along the height direction. The back plate is provided with a controller, which is electrically connected to the first laser and the second laser respectively. The controller calculates the speed of the ice puck as it falls from the position of the first laser to the position of the second laser.

[0016] A further technical solution is that a clearance hole is provided at the rear end of the square conduit, a cylinder is provided at the lower end of the back plate, a laser aligner is connected to the piston rod end of the cylinder, the piston rod of the cylinder moves in a direction parallel to the width direction of the base frame, and the axis of the laser aligner is parallel to the axis of the square conduit; when the cylinder is activated, the piston rod of the cylinder extends or retracts, the laser aligner passes through the clearance hole and extends into the square conduit and the axis of the laser aligner coincides with the axis of the square conduit, or the laser aligner passes through the clearance hole and exits the square conduit.

[0017] The beneficial effects of this utility model embodiment are as follows:

[0018] (i) An angle-adjustable hail testing device includes a base frame, a mounting frame, and an adjustment frame. The adjustment frame slides back and forth on the upper end of the base frame and slides left and right on the front end of the ice hockey launching device, so that the launching position of the ice hockey can be freely adjusted in the horizontal plane. The photovoltaic module is installed on the mounting frame. The guide plate on the inner side of the base frame and its semi-circular guide hole cooperate with the fastener at the lower end of the mounting frame. The fastener moves along the guide hole to drive the mounting frame to rotate back and forth around the rotation connection point, flexibly adjusting the tilt angle of the photovoltaic module. By tightening the fastener passing through the guide hole, the mounting frame is stably locked at any desired tilt angle, effectively solving the problem of ice hockey only impacting vertically. It simultaneously controls the tilt angle of the mounting frame with photovoltaic module and the horizontal position of the launcher, accurately simulating the real working condition of hail impacting photovoltaic module at different tilt angles, and improving the accuracy of photovoltaic module reliability testing.

[0019] (ii) Furthermore, a central shaft is fixedly provided at both ends of the mounting frame, and the central shaft is rotatably connected to the left and right ends of the inner side of the base frame. A mounting block is provided at either end of the base frame. The mounting frame also includes a drive assembly, which includes a drive shaft and a transmission belt. The drive shaft is rotatably mounted on the mounting block, and the transmission belt connects the inner end of the drive shaft to the outer end of the central shaft. The outer end of the drive shaft extends out of the mounting block. The drive assembly transmits external rotational operations to the central shaft of the mounting frame through the transmission connection formed by the drive shaft and the transmission belt. This allows the operator to control the mounting frame to rotate around the central shaft without directly moving the mounting frame, thus avoiding interference with fasteners when adjusting the tilt angle of the photovoltaic modules. This reduces adjustment resistance and enables fine-tuning of the angle, significantly improving operational convenience and testing efficiency.

[0020] (iii) Furthermore, a scale is provided on the guide plate. The scale is located at the lower end of the guide hole and extends in a semi-circular arc. When the operator moves the fastener to adjust the tilt angle of the mounting bracket, the precise position of the fastener in the guide hole can be read directly through the scale, thereby quickly observing the tilt angle of the photovoltaic module, eliminating the error of manual visual inspection, and ensuring the repeatability and accuracy of the test angle. Attached Figure Description

[0021] Figure 1 This is an isometric view of an angle-adjustable hail testing device according to the present invention.

[0022] Figure 2 This is a side view of the angle-adjustable hail testing device of this utility model.

[0023] Figure 3 This is a top view of the angle-adjustable hail testing device of this utility model.

[0024] Figure 4 This is a rear view schematic diagram of an angle-adjustable hail testing device according to the present invention.

[0025] In the picture:

[0026] 100. Base frame; 110. Guide plate; 111. Guide hole; 112. Scale; 120. Mounting block; 130. First slide rail; 200. Mounting bracket; 210. Fastener; 220. Extension column; 230. Central shaft; 241. Drive shaft; 242. Transmission belt; 300. Adjustment bracket; 310. First slider; 320. Second slide rail; 400. Ice hockey launching device; 410. Back plate; 411. Second slider; 412. Controller; 420. Air cylinder; 430. Mounting cylinder; 440. Square guide tube; 441. Clearance hole; 500. Cylinder; 510. Laser alignment device. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] Example:

[0029] Figure 1 This is an isometric view of an angle-adjustable hail testing device according to this utility model. Figure 1 As shown, an angle-adjustable hail testing device includes a base frame 100, a mounting frame 200, and an adjustment frame 300.

[0030] Figure 2 This is a side view of the angle-adjustable hail testing device of this utility model. Figures 1-2 As shown, guide plates 110 are provided at the left and right ends of the inner side of the base frame 100. Guide holes 111 are provided on the guide plates 110, and the guide holes 111 extend in a semi-circular arc shape. For example, the guide plates 110 are semi-circular, and the connection points between the left and right ends of the mounting bracket 200 and the left and right ends of the inner side of the base frame 100 are located at the center of the two guide plates 110. The guide holes 111 extend in a semi-circular arc shape around the center of the guide plates 110.

[0031] like Figures 1-2 As shown, the left and right ends of the mounting bracket 200 are rotatably connected to the left and right ends of the inner side of the base frame 100, respectively, and the photovoltaic modules are mounted on the mounting bracket 200. Fasteners 210 are provided at the lower ends of the left and right ends of the mounting bracket 200, passing through guide holes 111. The fasteners 210 move back and forth along the extension direction of the guide holes 111, driving the mounting bracket 200 to rotate back and forth. The fasteners 210 fix the sides of the mounting bracket 200 to the two guide plates 110. For example, the lower ends of the left and right ends of the mounting bracket 200 are provided with extension posts 220, and screw holes are opened on the outer side of the extension posts 220. The fasteners 210 are bolts, passing through the guide holes 111 and threaded into the screw holes. The shank of the bolt is clearance-fitted with the guide hole 111, and the head of the bolt is larger than the clearance of the guide hole 111. The shank of the bolt moves along the guide hole 111, and tightening the bolt causes the head of the bolt to clamp the guide plate 110, fixing the tilt angle of the mounting bracket 200.

[0032] Figure 3 This is a top view schematic diagram of an angle-adjustable hail testing device according to this utility model. Figures 2-3As shown, the adjustment frame 300 is slidably connected to the upper ends of the left and right ends of the base frame 100 and located at the upper end of the mounting frame 200. For example, the upper ends of the left and right ends of the base frame 100 are provided with first slide rails 130 along the width direction. The left and right ends of the adjustment frame 300 are provided with first sliders 310. The lower ends of the first sliders 310 are slidably connected to the upper ends of the first slide rails 130, and the upper ends of the first slide rails 130 are engaged with the lower ends of the first sliders 310. The upper and lower ends of the front end of the adjustment frame 300 are provided with second slide rails 320 along the length direction. The upper and lower ends of the rear end of the hockey launching device 400 are provided with second sliders 411. The rear ends of the second sliders 411 are slidably connected to the front ends of the second slide rails 320, and the front ends of the second slide rails 320 are engaged with the rear ends of the second sliders 411. The front end of the adjustment frame 300 is slidably connected to the hockey launching device 400 along the left and right directions. For example, the hockey launching device 400 includes a back plate 410, a pressure cylinder 420, a mounting cylinder 430, and a square guide tube 440. Two second sliders 411 are located at the upper and lower ends of the rear end of the back plate 410. The axis of the pressure cylinder 420 is vertically oriented, and the pressure cylinder 420 is vertically slidably connected to the front end of the back plate 410. The top end of the pressure cylinder 420 is connected to a pressure source, and the bottom end of the pressure cylinder 420 is a compressed air outlet. The mounting cylinder 430 is fixed to the lower end of the front end of the back plate 410. The mounting cylinder 430 is coaxially arranged at the lower end of the pressure cylinder 420, and an elastic ring is fixed to the inner wall of the mounting cylinder 430. The puck is placed inside the mounting cylinder 430, with an elastic ring supporting its lower surface. A square guide tube 440 is located at the lower end of the front end of the back plate 410. The square guide tube 440 is coaxially positioned at the lower end of the mounting cylinder 430, with a portion of the lower end of the mounting cylinder 430 extending into the square guide tube 440. A first laser and a second laser are spaced apart along the height direction inside the lower end of the square guide tube 440. A controller 412 is provided on the back plate 410. The controller 412 is electrically connected to the first laser and the second laser, respectively. The controller 412 calculates the speed at which the puck moves from the position of the first laser to the position of the second laser.

[0033] Figure 4 This is a rear-view structural diagram of an angle-adjustable hail testing device according to this utility model. Figures 3-4As shown, furthermore, the mounting frame 200 has a central shaft 230 fixedly mounted at both ends, and the central shaft 230 is rotatably connected to the left and right ends inside the base frame 100. A mounting block 120 is provided at either end of the base frame 100. The mounting frame 200 also includes a drive assembly, which includes a drive shaft 241 and a transmission belt 242. The drive shaft 241 is rotatably mounted on the mounting block 120, and the transmission belt 242 connects the inner end of the drive shaft 241 to the outer end of the central shaft 230. The outer end of the drive shaft 241 extends out of the mounting block 120. Through the transmission connection formed by the drive shaft 241 and the transmission belt 242, the drive assembly transmits external rotational operations to the central shaft 230 of the mounting frame 200. This allows the operator to control the mounting frame 200 to rotate around the central shaft 230 without directly moving the mounting frame 200, thus avoiding interference with the fasteners 210 when adjusting the tilt angle of the photovoltaic module. This reduces adjustment resistance and enables fine-tuning of the angle, significantly improving operational convenience and testing efficiency.

[0034] like Figure 2 As shown, the guide plate 110 is further provided with a scale 112, which is located at the lower end of the guide hole 111 and extends in a semi-circular arc shape. When the operator moves the fastener 210 to adjust the tilt angle of the mounting bracket 200, the precise position of the fastener 210 in the guide hole 111 can be read directly through the scale 112, thereby quickly observing the tilt angle of the photovoltaic module, eliminating the error of manual visual inspection, and ensuring the repeatability and accuracy of the test angle.

[0035] like Figure 4 As shown, further, a clearance hole 441 is provided at the rear end of the square conduit 440, and a cylinder 500 is provided at the lower end of the back plate 410. A laser aligner 510 is connected to the piston rod end of the cylinder 500. The piston rod of the cylinder 500 moves in a direction parallel to the width direction of the base frame 100, and the axis of the laser aligner 510 is parallel to the axis of the square conduit 440. When the cylinder 500 is activated, the piston rod of the cylinder 500 extends or retracts, and the laser aligner 510 passes through the clearance hole 441 and extends into the square conduit 440, with the axis of the laser aligner 510 coinciding with the axis of the square conduit 440; or the laser aligner 510 passes through the clearance hole 441 and exits the square conduit 440. The laser aligner 510 is driven by cylinder 500 to precisely enter and exit the clearance hole 441 along the axial direction of the guide tube, so that when the calibrator extends, its axis is completely aligned with the axis of the square guide tube 440. This ensures that the laser path of the laser aligner 510 is completely aligned with the path of the ice hockey puck launch. The laser of the laser aligner 510 is projected onto the photovoltaic module of the mounting bracket 200, so that the endpoint of the ice hockey puck launch is at the required test point of the photovoltaic module. After calibration, the aligner is retracted to avoid interfering with the falling path of the ice hockey puck. This achieves rapid calibration of the test point of the photovoltaic module and the key point of the ice hockey puck launch path, ensuring the testing accuracy of the testing device.

[0036] In operation, this embodiment is as follows:

[0037] The rotating drive shaft 241 drives the central shaft 230 of the mounting frame 200 to rotate via the transmission belt 242, causing the mounting frame 200 and the photovoltaic modules on it to rotate around the central shaft 230 to the required tilt angle. At this time, the fastener 210 bolt at the lower end of the mounting frame 200 slides in the semi-circular guide hole 111 of the guide plate 110. The angle of the mounting frame 200 is fixed by tightening the bolt, and the current tilt angle is accurately read by the semi-circular scale 112 at the lower end of the guide hole 111. Then, the operator slides the first slider 310 at the bottom of the adjustment frame 300 back and forth to move it along the first slide rail 130 at the upper end of the base frame 100, and at the same time slides the second slider 411 on the back plate 410 of the hockey launching device 400 left and right to move it along the second slide rail 320 at the front end of the adjustment frame 300, so that the hockey launching device 400 is initially positioned above the photovoltaic module test point. Subsequently, the cylinder 500 at the lower end of the backplate 410 is activated, pushing the laser aligner 510 at the end of its piston rod through the clearance hole 441 at the rear end of the square guide tube 440 and into the inside of the guide tube, so that the axis of the laser aligner 510 coincides with the axis of the square guide tube 440. The laser beam illuminates the photovoltaic module to accurately locate the test point. After calibration, the cylinder 500 retracts the laser aligner 510. During the test, an ice ball is placed in the mounting cylinder 430 and supported by an elastic ring. The top of the air pressure cylinder 420 is connected to the air pressure source, and the bottom releases compressed air to push the ice ball downward. The ice ball falls through the mounting cylinder 430 and the square guide tube 440 in sequence. During this process, the first laser and the second laser in the square guide tube 440 detect the time it takes for the ice ball to pass through. The controller 412 calculates the speed of the ice ball accordingly. Finally, the ice ball hits the designated test point of the photovoltaic module at the set speed and angle to complete the hail impact test.

[0038] In this embodiment, the guide plate 110 on the inner side of the base frame 100 and its semi-circular guide hole 111 cooperate with the fastener 210 at the lower end of the mounting frame 200. Moving the fastener 210 along the guide hole 111 drives the mounting frame 200 to rotate back and forth around the rotation connection point, flexibly adjusting the tilt angle of the photovoltaic module. By tightening the fastener 210 passing through the guide hole 111, the mounting frame 200 is stably locked at any desired tilt angle, effectively solving the problem of the hockey puck only impacting vertically. It simultaneously controls the tilt angle of the mounting frame 200 with the photovoltaic module and the horizontal position of the transmitter, accurately simulating the real working condition of hail impacting the photovoltaic module at different tilt angles, and improving the accuracy of photovoltaic module reliability testing.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An angle-adjustable hail testing device, characterized in that, include: The base frame (100) has guide plates (110) at both ends of the inner side of the base frame (100). The guide plates (110) have guide holes (111) that extend in a semi-circular arc shape. Mounting bracket (200), the left and right ends of the mounting bracket (200) are rotatably connected to the left and right ends of the inner side of the base frame (100), and the photovoltaic module is mounted on the mounting bracket (200); the lower ends of the left and right ends of the mounting bracket (200) are provided with fasteners (210), the fasteners (210) pass through the guide hole (111); the fasteners (210) move back and forth along the extension direction of the guide hole (111), the fasteners (210) drive the mounting bracket (200) to rotate back and forth, and fix the fasteners (210), the fasteners (210) fix the two sides of the mounting bracket (200) to the two guide plates (110); An adjustment frame (300) is slidably connected to the upper ends of the left and right ends of the base frame (100) and located at the upper end of the mounting frame (200). The front end of the adjustment frame (300) is slidably connected to an ice hockey launching device (400).

2. The angle-adjustable hail testing device according to claim 1, characterized in that: The guide plate (110) is semi-circular. The connection points between the left and right ends of the mounting bracket (200) and the left and right ends of the inner side of the base frame (100) are located at the center of the two guide plates (110). The guide hole (111) extends in a semi-circular arc around the center of the guide plate (110).

3. The angle-adjustable hail testing device according to claim 1, characterized in that: The lower ends of the left and right ends of the mounting bracket (200) are provided with extension columns (220), and the outer side of the extension columns (220) is provided with screw holes; the fastener (210) is a bolt, the bolt passes through the guide hole (111) and is threaded into the screw hole, the shank of the bolt is clearance-fitted with the guide hole (111), the head of the bolt is larger than the clearance of the guide hole (111), the shank of the bolt moves along the guide hole (111), the bolt is tightened, the head of the bolt clamps the guide plate (110), and the tilt angle of the mounting bracket (200) is fixed.

4. The angle-adjustable hail testing device according to claim 1, characterized in that: The mounting bracket (200) has a central shaft (230) fixedly provided at both ends of the left and right sides. The central shaft (230) is rotatably connected to the left and right ends of the inner side of the base frame (100). The base frame (100) has a mounting block (120) at either end of its left or right sides. The mounting bracket (200) also includes a drive assembly. The drive assembly includes a drive shaft (241) and a transmission belt (242). The drive shaft (241) is rotatably mounted on the mounting block (120). The transmission belt (242) connects the inner end of the drive shaft (241) to the outer end of the central shaft (230). The outer end of the drive shaft (241) extends out of the mounting block (120).

5. The angle-adjustable hail testing device according to claim 1, characterized in that: The guide plate (110) is provided with a scale (112), which is located at the lower end of the guide hole (111) and extends in a semi-circular arc shape.

6. The angle-adjustable hail testing device according to claim 1, characterized in that: The upper ends of the left and right ends of the base frame (100) are provided with first slide rails (130) along the width direction. The left and right ends of the adjustment frame (300) are provided with first sliders (310). The lower end of the first slider (310) is slidably connected to the upper end of the first slide rail (130) and the upper end of the first slide rail (130) is engaged with the lower end of the first slider (310). The upper and lower ends of the front end of the adjustment frame (300) are provided with second slide rails (320) along the length direction. The upper and lower ends of the rear end of the hockey launching device (400) are provided with second sliders (411). The rear end of the second slider (411) is slidably connected to the front end of the second slide rail (320) and the front end of the second slide rail (320) is engaged with the rear end of the second slider (411).

7. The angle-adjustable hail testing device according to claim 6, characterized in that: The hockey launching device (400) includes a back plate (410), a pressure cylinder (420), a mounting cylinder (430), and a square guide tube (440). Two second sliders (411) are located at the upper and lower ends of the rear end of the back plate (410). The axis of the pressure cylinder (420) is vertically oriented. The pressure cylinder (420) slides vertically and is connected to the front end of the back plate (410). The top end of the pressure cylinder (420) is connected to a pressure source. The bottom end of the pressure cylinder (420) is a compressed air outlet. The mounting cylinder (430) is fixed at the lower end of the front end of the back plate (410). The mounting cylinder (430) is coaxially arranged at the lower end of the pressure cylinder (420). An elastic ring is fixed to the inner wall of the mounting cylinder (430). The puck is placed inside the mounting cylinder (430), the elastic ring is supported on the lower surface of the puck, the square conduit (440) is located at the lower end of the front end of the back plate (410), the square conduit (440) is coaxially arranged at the lower end of the mounting cylinder (430) and the lower part of the mounting cylinder (430) extends into the square conduit (440), the lower end of the inside of the square conduit (440) is provided with a first laser and a second laser at intervals along the height direction, the back plate (410) is provided with a controller (412), the controller (412) is electrically connected to the first laser and the second laser respectively, and the controller (412) calculates the speed of the puck as it falls from the position of the first laser to the position of the second laser.

8. The angle-adjustable hail testing device according to claim 7, characterized in that: The rear end of the square conduit (440) is provided with a clearance hole (441). A cylinder (500) is provided at the lower end of the back plate (410). A laser aligner (510) is connected to the piston rod end of the cylinder (500). The piston rod of the cylinder (500) moves in a direction parallel to the width direction of the base frame (100). The axis of the laser aligner (510) is parallel to the axis of the square conduit (440). When the cylinder (500) is activated, the piston rod of the cylinder (500) extends or retracts. The laser aligner (510) passes through the clearance hole (441) and extends into the square conduit (440), and the axis of the laser aligner (510) coincides with the axis of the square conduit (440). Alternatively, the laser aligner (510) passes through the clearance hole (441) and exits the square conduit (440).

Images