Raindrop diameter and speed measuring device

Abstract

The utility model relates to a raindrop diameter and speed measuring device which comprises two symmetrically arranged pneumatic cylinders installed in a rain test box, telescopic ends of the bottoms of the pneumatic cylinders are connected with a lifting ring, a rotating ring is rotatably installed on the lifting ring, supporting frames are symmetrically installed on the rotating ring, and the supporting frames are connected with the lifting ring. A rotating seat is rotatably mounted between the two supporting frames, a sliding seat is slidably mounted on the rotating seat, connecting arms are symmetrically mounted on the sliding seat, mounting plates are mounted at the two ends of the two connecting arms respectively, and a laser transmitter is mounted on the inner side of one of the mounting plates; and through rotation of the rotating seat and translation of the sliding seat, the supporting structure of the laser transmitter and the photoelectric sensor can be folded and unfolded conveniently, folding storage in a non-measurement stage is facilitated, and space occupation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rain test technology, and in particular to a device for measuring raindrop diameter and velocity. Background Technology

[0002] Rain test equipment can be used to determine the following environmental impacts related to rain, water spray, and dripping.

[0003] When conducting rain tests, it is necessary to test the impact of different rainfall conditions on the test sample. However, since rainfall is simulated by spraying water through nozzles, the rainfall conditions vary at different locations within the equipment. Existing measuring devices cannot flexibly monitor different areas within the equipment. Utility Model Content

[0004] The present invention addresses the problem of providing a device for measuring raindrop diameter and velocity. It solves the technical problem that existing measuring devices cannot flexibly monitor different areas within the equipment when testing the impact of different rainfall conditions on the test sample during rain tests, as the rainfall conditions vary at different locations within the equipment when water is sprayed from a nozzle to simulate rainfall.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for measuring raindrop diameter and velocity includes two symmetrically arranged pneumatic cylinders installed inside a rain test chamber. The telescopic ends of the bottom of the pneumatic cylinders are connected to a lifting ring. A rotating ring is rotatably mounted on the lifting ring. Support frames are symmetrically mounted on the rotating ring. A rotating seat is rotatably mounted between the two support frames. A sliding seat is slidably mounted on the rotating seat. Connecting arms are symmetrically mounted on the sliding seat. Mounting plates are mounted at both ends of the two connecting arms. A laser emitter is mounted inside one mounting plate, and a photoelectric sensor is mounted inside the other mounting plate.

[0007] Preferably, the lifting ring and the rotating ring are connected by a bearing, and a bottom toothed ring is provided on the bottom side of the rotating ring.

[0008] Preferably, a first motor is installed on the lifting ring, and a rotating tooth is installed at the output end of the first motor, and the rotating tooth meshes with the bottom tooth ring.

[0009] Preferably, a second motor is mounted on the support frame, and the output end of the second motor is connected to the end of the rotating seat.

[0010] Preferably, a third motor is installed at the end of the rotary seat, and a threaded rod is installed at the output end of the third motor inside the rotary seat, and the threaded rod is threadedly connected to the slide.

[0011] The beneficial effects of this utility model are: by rotating the rotating seat and translating the sliding seat, it is easy to fold and unfold the support structure of the laser emitter and photoelectric sensor, and it is easy to fold and store them during non-measurement stages to avoid taking up space.

[0012] The lifting ring is raised and lowered by the operation of the pneumatic cylinder to adjust the height of the laser emitter and photoelectric sensor. The first motor drives the rotating gear to rotate, which cooperates with the meshing bottom gear ring to drive the rotating ring to rotate outside the lifting ring, thereby measuring raindrops at different positions in the rain test chamber. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall first structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall second structure of this utility model.

[0015] Legend:

[0016] 1. Pneumatic cylinder; 2. Lifting ring; 3. Rotating ring; 4. First motor; 5. Rotating gear; 6. Bottom gear ring; 7. Support frame; 8. Second motor; 9. Rotating seat; 10. Third motor; 11. Threaded rod; 12. Slide seat; 13. Connecting arm; 14. Mounting plate; 15. Laser emitter; 16. Photoelectric sensor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Specific implementation examples are given below.

[0019] See Figure 1 and Figure 2 A raindrop diameter and velocity measuring device includes two symmetrically arranged pneumatic cylinders 1 installed in a rain test chamber. The bottom telescopic end of the pneumatic cylinder 1 is connected to a lifting ring 2. A rotating ring 3 is rotatably mounted on the lifting ring 2. Support frames 7 are symmetrically mounted on the rotating ring 3. A rotating seat 9 is rotatably mounted between the two support frames 7. A slide seat 12 is slidably mounted on the rotating seat 9. Connecting arms 13 are symmetrically mounted on the slide seat 12. Mounting plates 14 are respectively mounted at both ends of the two connecting arms 13. A laser emitter 15 is mounted inside one mounting plate 14, and a photoelectric sensor 16 is mounted inside the other mounting plate 14.

[0020] The lifting ring 2 and the rotating ring 3 are connected by bearings. A bottom toothed ring 6 is provided on the bottom side of the rotating ring 3. A first motor 4 is installed on the lifting ring 2. A rotating tooth 5 is installed at the output end of the first motor 4 and meshes with the bottom toothed ring 6. The lifting ring 2 is driven to rise and fall by the operation of the pneumatic cylinder 1, thereby adjusting the height of the laser emitter 15 and the photoelectric sensor 16. The rotating tooth 5 is driven to rotate by the operation of the first motor 4, which cooperates with the meshing bottom toothed ring 6 to drive the rotating ring 3 to rotate outside the lifting ring 2, thereby measuring raindrops at different positions in the rain test chamber.

[0021] A second motor 8 is installed on the support frame 7, and the output end of the second motor 8 is connected to the end of the rotating seat 9. A third motor 10 is installed at the end of the rotating seat 9. The output end of the third motor 10 is located inside the rotating seat 9 and a threaded rod 11 is installed. The threaded rod 11 is threadedly connected to the slide 12. The second motor 8 drives the rotating seat 9 to rotate, and the third motor 10 drives the threaded rod 11 to rotate, which in turn drives the threaded slide 12 to move. The rotation of the rotating seat 9 and the translation of the slide 12 facilitate the folding and unfolding of the support structure for the laser emitter 15 and the photoelectric sensor 16. This allows for easy folding and storage during non-measurement stages, avoiding space occupation.

[0022] Working principle: The pneumatic cylinder 1 drives the lifting ring 2 to rise and fall, adjusting the height of the laser emitter 15 and the photoelectric sensor 16. The first motor 4 drives the rotating gear 5 to rotate, which engages with the bottom gear ring 6, causing the rotating ring 3 to rotate outside the lifting ring 2, thus adjusting the rotation of the laser emitter 15 and the photoelectric sensor 16. When a raindrop passes between the laser emitter 15 and the photoelectric sensor 16, the raindrop passes through the beam of light emitted by the laser emitter 15, and the photoelectric sensor 16 receives the scattered light signal, thereby measuring the diameter and speed of the raindrop. The second motor 8 drives the rotating seat 9 to rotate, and the third motor 10 drives the threaded rod 11 to rotate, which in turn drives the threaded sliding seat 12 to move. During measurement, the sliding seat 12 drives the connecting arm 13 to extend out of the rotating seat 9, and the rotating seat 9 rotates to a horizontal position. After the measurement is completed, the sliding seat 12 drives the connecting arm 13 to retract onto the rotating seat 9, and the rotating seat 9 rotates to a vertical position.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for measuring raindrop diameter and velocity, characterized in that, The device includes two symmetrically arranged pneumatic cylinders (1) installed inside a rain test chamber. The bottom telescopic end of the pneumatic cylinder (1) is connected to a lifting ring (2). A rotating ring (3) is rotatably installed on the lifting ring (2). A support frame (7) is symmetrically installed on the rotating ring (3). A rotating seat (9) is rotatably installed between the two support frames (7). A slide seat (12) is slidably installed on the rotating seat (9). A connecting arm (13) is symmetrically installed on the slide seat (12). Mounting plates (14) are installed at both ends of the two connecting arms (13). A laser emitter (15) is installed inside one of the mounting plates (14), and a photoelectric sensor (16) is installed inside the other mounting plate (14).

2. The raindrop diameter and velocity measuring device according to claim 1, characterized in that, The lifting ring (2) and the rotating ring (3) are connected by bearings, and a bottom toothed ring (6) is provided on the bottom side of the rotating ring (3).

3. The raindrop diameter and velocity measuring device according to claim 2, characterized in that, The lifting ring (2) is equipped with a first motor (4), and the output end of the first motor (4) is equipped with a rotating tooth (5), which meshes with the bottom tooth ring (6).

4. The raindrop diameter and velocity measuring device according to claim 3, characterized in that, The support frame (7) is equipped with a second motor (8), and the output end of the second motor (8) is connected to the end of the rotating seat (9).

5. The raindrop diameter and velocity measuring device according to claim 4, characterized in that, A third motor (10) is installed at the end of the rotating seat (9). The output end of the third motor (10) is located inside the rotating seat (9) and a threaded rod (11) is installed thereon. The threaded rod (11) is threadedly connected to the slide (12).

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