Rain test device water pressure adjusting device

Abstract

The application belongs to the technical field of rain test, and discloses a water supply pressure adjusting device for a rain test device, which comprises a fixing frame arranged on the upper portion of a test box, an arc-shaped main water pipe arranged on the lower portion of the fixing frame, a plurality of water outlet pipes arranged along the length direction of the main water pipe, a spraying assembly connected to the water outlet pipes, the spraying assembly comprising a mounting pipe connected to the water outlet pipes, a rotating ring rotatably arranged on the inner cavity of the mounting pipe, a fixing seat arranged on the lower end of the rotating ring, a circular groove formed downward on the top surface of the fixing seat, a plurality of spraying openings formed downward and penetrating through the groove bottom, a nozzle arranged at the spraying openings, a sliding block screw-connected to the inner wall of the rotating ring through threads, a plurality of through holes annularly arranged on the sliding block, a conical valve core arranged downward on the center of the bottom of the sliding block, a limiting assembly arranged in the mounting pipe to limit the rotation of the sliding block, and a driving assembly arranged on the outer side of the rotating ring to drive the rotation of the rotating ring. The water pressure can be changed by the movement of the valve core, the water pressure at the nozzle can be effectively controlled, and the adjustment effect on the rain intensity is obvious.

Description

Technical Field

[0001] This utility model relates to the field of rain test technology, and in particular to a water supply pressure regulating device for a rain test apparatus. Background Technology

[0002] A rain test apparatus is a testing device specifically designed to simulate the effects of rainwater on products in a natural environment. It uses a spray system to generate simulated rainwater and subject products to a spray test to evaluate key performance indicators such as waterproofing, sealing, and weather resistance in humid, rainy environments.

[0003] Chinese utility model patent CN213688812U discloses a rain test chamber for easy adjustment of rain intensity. The chamber includes a rain chamber with a nozzle inside. A conduit is located on the side of the nozzle near the rain chamber, and a centrifugal pump is installed through the conduit. The outlet of the centrifugal pump is connected to the conduit, and a water tank is located at the inlet. An adjustment device for regulating water flow is provided on the conduit. This device, by incorporating the adjustment device, solves the problem of the current practice of frequently changing different nozzles to adjust rain intensity when conducting rain tests on different products, which is time-consuming and labor-intensive. This new device allows for convenient adjustment of rain intensity without the need for frequent nozzle changes.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: In the above-mentioned solutions, the regulating device is set on the conduit, and the water flow rate is adjusted by the regulating device to adjust the water flow pressure. However, in operation, the adjusted water flow passes through the conduit on its way to the nozzle, which affects the water flow pressure, making the adjustment effect of the rain intensity not obvious, and the water pressure sprayed from the nozzle uncontrollable. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a water supply pressure regulating device for a rain test apparatus.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a water supply pressure regulating device for a rain test apparatus, comprising a fixed frame installed on the upper part of the test chamber, an arc-shaped main water pipe installed at the lower part of the fixed frame, a plurality of water outlet pipes installed along the length of the main water pipe, a spray assembly connected to the water outlet pipes, the spray assembly comprising an installation pipe connected to the water outlet pipes, a rotating ring rotatably installed in the lower part of the inner cavity of the installation pipe, a fixed seat installed at the lower end of the rotating ring, a circular groove with a gradually decreasing diameter opened on the top surface of the fixed seat, a plurality of spray nozzles extending downward through the bottom of the circular groove, a nozzle installed at each spray nozzle, a sliding block connected to the inner wall of the rotating ring by a threaded spiral, a plurality of through holes annularly opened on the sliding block, a conical valve core installed at the bottom center of the sliding block, a limiting component for restricting the rotation of the sliding block installed inside the installation pipe, and a driving component for driving the rotating ring to rotate on the outer side of the rotating ring.

[0007] By adopting the above technical solution, a spray assembly, a rotating ring, a fixed base, a circular groove, a nozzle, a sliding block, a valve core, and a drive assembly are set up. During the rain test, the drive assembly drives the rotating rings on several spray assemblies to rotate synchronously, thereby causing the sliding block to move within the rotating ring, which in turn causes the valve core at the lower end to move, changing the size of the space formed between the side wall of the valve core and the wall of the circular groove, and thus changing the water pressure at the outlet. This can effectively control the water flow pressure at the nozzle and has a significant effect on regulating the rain intensity.

[0008] Furthermore, the drive assembly includes a spur gear disposed on the outside of the rotating ring and a mounting plate disposed on the back plate of the test chamber. A slider is slidably disposed on the mounting plate. Several spur racks are disposed on the side of the slider near the back plate of the test chamber. The end of the spur rack away from the slider passes through the back plate of the test chamber and meshes with the corresponding spur gear. A power assembly for driving the slider to slide on the mounting plate is disposed on the mounting plate.

[0009] By adopting the above technical solution, spur gears, sliders, racks, and power components are set up. The power components drive the sliders to move, thereby driving several racks to move synchronously, which in turn drives the spur gears and rotating rings on several spray components to rotate synchronously.

[0010] Furthermore, the power assembly includes a mounting base mounted on the mounting plate, a lead screw rotatably mounted between the mounting base and the back plate of the test chamber, a threaded hole on the slider, the slider being helically mounted on the lead screw through the threaded hole, a drive motor being mounted on one side of the lead screw, and the output shaft of the drive motor being connected to the lead screw.

[0011] By adopting the above technical solution, a lead screw and a drive motor are set up. The drive motor drives the lead screw to rotate, thereby driving the slider to move.

[0012] Furthermore, a support frame is provided at the lower end of the fixed frame, and the end of the rack away from the slider is slidably mounted on the support frame.

[0013] By adopting the above technical solution, a support frame is set up to support and guide the straight rack.

[0014] Furthermore, the limiting component includes a strip plate disposed in the inner cavity of the mounting tube, the strip plate having a square hole, a square rod slidably disposed in the square hole, and the lower end of the square rod being fixedly connected to the upper end of the sliding block.

[0015] By adopting the above technical solution, a strip plate, a square hole, and a square rod are set. The square rod is limited and guided by the cooperation between the square rod and the square hole. Then, the square rod is fixedly connected to the sliding block to prevent the sliding block from rotating with the rotating ring, so that the sliding block can only move up and down within the rotating ring.

[0016] Furthermore, the end of the water outlet pipe away from the main water pipe is provided with an external thread, and the installation pipe is provided with an internal thread. The main water pipe and the installation pipe are connected by the external thread and the internal thread to form a spiral connection.

[0017] By adopting the above technical solution, the installation pipe and the water outlet pipe are connected by threads, which facilitates the replacement and unblocking of the spray components.

[0018] Furthermore, an annular boss is provided on the outer wall of the top of the rotating ring, and an annular groove that mates with the annular boss is provided inside the mounting tube.

[0019] By adopting the above technical solution, an annular boss and an annular groove are set. The rotation ring is supported by the cooperation between the annular boss and the annular groove, and at the same time, the rotation ring can only rotate relative to the mounting tube.

[0020] In summary, this utility model has the following beneficial effects:

[0021] In this application, a spray assembly, a rotating ring, a fixed base, a circular groove, a nozzle, a sliding block, a valve core, and a drive assembly are provided. During a rain test, the drive assembly drives the rotating rings on several spray assemblies to rotate synchronously, thereby causing the sliding block to move within the rotating ring, which in turn causes the valve core at the lower end to move, changing the size of the space formed between the side wall of the valve core and the wall of the circular groove, and thus changing the water supply pressure. By changing the water pressure through the movement of the valve core, the water flow pressure at the nozzle can be effectively controlled, and the effect of regulating the rain intensity is obvious. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2This is a structural schematic diagram of the main water pipe, spray assembly, drive assembly, fixing frame, and support frame of this utility model embodiment;

[0024] Figure 3 This is a schematic diagram of the structure of the spray assembly according to an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure along direction A;

[0026] Figure 5 This is a schematic diagram of the structure of the sliding block, valve core, and square rod in an embodiment of this utility model;

[0027] Figure 6 This is a cross-sectional structural diagram of the power component according to an embodiment of the present invention.

[0028] In the diagram: 10. Fixing frame; 11. Main water pipe; 12. Outlet water pipe; 13. Support frame; 14. Annular boss; 15. Annular groove; 20. Spray assembly; 21. Mounting pipe; 22. Rotating ring; 23. Fixing seat; 24. Circular groove; 25. Spray nozzle; 26. Nozzle; 27. Sliding block; 28. Through hole; 29. ​​Valve core; 30. Drive assembly; 31. Spur gear; 32. Mounting plate; 33. Slider; 34. Spur rack; 35. Power assembly; 36. Mounting seat; 37. Lead screw; 38. Drive motor; 40. Limiting assembly; 41. Strip plate; 42. Square hole; 43. Square rod. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-6 As shown in the illustration, this application discloses a water supply pressure regulating device for a rain test apparatus, including a fixed frame 10 mounted on the upper part of the test chamber. An arc-shaped main water pipe 11 is mounted on the lower part of the fixed frame 10. Several outlet pipes 12 are arranged along the length of the main water pipe 11, and spray components 20 are connected to the outlet pipes 12. Water flows through the main water pipe 11 and sprays through the spray components 20 to simulate a rain scenario and perform a rain test on the product to be tested.

[0031] In its specific configuration, the spray assembly 20 includes an installation pipe 21, a rotating ring 22, a fixed base 23, a nozzle 26, a sliding block 27, and a valve core 29. The end of the outlet pipe 12 furthest from the main water pipe 11 has an external thread, and the installation pipe 21 has an internal thread. The main water pipe 11 and the installation pipe 21 are connected by a helical connection formed by the external and internal threads. The threaded connection between the installation pipe 21 and the outlet pipe 12 facilitates replacement and unblocking of the spray assembly 20. The rotating ring 22 is rotatably mounted in the lower part of the inner cavity of the installation pipe 21. An annular boss 14 is provided on the outer wall of the top of the rotating ring 22, and an annular groove 15 that mates with the annular boss 14 is provided inside the installation pipe 21. The engagement between the annular boss 14 and the annular groove 15 supports the rotating ring 22, allowing it to rotate relative to the installation pipe 21. A fixed base 23 is located at the lower end of the rotating ring 22. A circular groove 24 with a gradually decreasing diameter is formed on the top surface of the fixed base 23. Several spray nozzles 25 are formed through the bottom of the groove 24, and nozzles 26 are located at the spray nozzles 25. A sliding block 27 is located inside the rotating ring 22 and is connected to the inner wall of the rotating ring 22 by a threaded connection. Several through holes 28 are formed on the sliding block 27 in a ring shape to facilitate water flow. A conical valve core 29 is located at the bottom center of the sliding block 27. By driving the rotating ring 22 on several spray components 20 to rotate synchronously, the sliding block 27 moves within the rotating ring 22, which in turn moves the valve core 29 at the lower end, changing the space formed between the side wall of the valve core 29 and the wall of the circular groove 24, thereby changing the water supply pressure. By changing the water pressure through the movement of the valve core 29, the water flow pressure at the nozzles 26 can be effectively controlled, resulting in a significant effect on adjusting the rain intensity. A limit component 40 is provided inside the mounting pipe 21 to limit the rotation of the sliding block 27. A drive assembly 30 is provided on the outer side of the rotating ring 22 to drive the rotating ring 22 on several spray assemblies 20 to rotate synchronously.

[0032] The drive assembly 30 includes a spur gear 31, a mounting plate 32, a slider 33, a rack 34, and a power assembly 35. The spur gear 31 is located outside the rotating ring 22, the mounting plate 32 is mounted on the back plate of the test chamber, and the slider 33 is slidably mounted on the mounting plate 32. The rack 34 is located on the side of the slider 33 closest to the back plate of the test chamber, and the number of racks 34 corresponds to the number of spur gears 31. The end of the rack 34 away from the slider 33 passes through the back plate of the test chamber and meshes with the corresponding spur gear 31. The power assembly 35 is mounted on the mounting plate 32 and is used to drive the slider 33 to slide on the mounting plate 32. The power assembly 35 drives the slider 33 to move, thereby causing the racks 34 to move synchronously, which in turn causes the spur gears 31 on the spray assemblies 20 to rotate synchronously with the rotating ring 22. Specifically, a support frame 13 is provided at the lower end of the fixed frame 10, and the end of the rack 34 away from the slider 33 is slidably mounted on the support frame 13, which supports and guides the rack 34. The power assembly 35 includes a lead screw 37 and a drive motor 38. A mounting base 36 is provided on the mounting plate 32, and the lead screw 37 is rotatably mounted between the mounting base 36 and the back plate of the test chamber. A threaded hole is provided on the slider 33, which is helically mounted on the lead screw 37 through the threaded hole. The drive motor 38 is located on one side of the lead screw 37, and its output shaft is connected to the lead screw 37. The drive motor 38 drives the lead screw 37 to rotate, thereby driving the slider 33 to move.

[0033] The limiting assembly 40 includes a strip plate 41 and a square rod 43. The strip plate 41 is disposed inside the cavity of the mounting tube 21, and a square hole 42 is formed on the strip plate 41. The square rod 43 is slidably disposed in the square hole 42, and the lower end of the square rod 43 is fixedly connected to the upper end of the sliding block 27. Through the cooperation between the square rod 43 and the square hole 42, the square rod 43 is limited and guided. Then, the square rod 43 is fixedly connected to the sliding block 27 to prevent the sliding block 27 from rotating with the rotating ring 22, so that the sliding block 27 can only move up and down within the rotating ring 22.

[0034] The operating principle of the water supply pressure regulating device for a rain test apparatus in this embodiment is as follows: During a rain test, water is supplied to the main water pipe 11 and the spray assembly 20 to simulate a rain condition. When water pressure adjustment is required, the drive motor 38 is started to drive the lead screw 37 to rotate, causing the sliding block 27 to slide on the mounting plate 32, which in turn drives several spur racks 34 to move synchronously, thereby driving several spur gears 31 and the rotating ring 22 on the spray assembly 20 to rotate, which in turn drives the sliding block 27 and the valve core 29 to move, thus adjusting the water pressure of the rain test apparatus.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A water supply pressure regulating device for a rain test apparatus, characterized in that: The test chamber includes a fixed frame (10) mounted on the upper part of the test chamber. An arc-shaped main water pipe (11) is mounted on the lower part of the fixed frame (10). Several outlet pipes (12) are arranged along the length of the main water pipe (11). A spray assembly (20) is connected to each outlet pipe (12). The spray assembly (20) includes an installation pipe (21) connected to the outlet pipes (12). A rotating ring (22) is rotatably mounted on the lower part of the inner cavity of the installation pipe (21). A fixed seat (23) is mounted at the lower end of the rotating ring (22). A circular groove with a gradually decreasing diameter is opened on the top surface of the fixed seat (23). 24) The bottom of the circular groove (24) is provided with several spray nozzles (25) extending downwards. A nozzle (26) is provided at each spray nozzle (25). A sliding block (27) is connected to the inner wall of the rotating ring (22) by a threaded spiral. Several through holes (28) are provided on the sliding block (27) in a ring. A conical valve core (29) is provided at the bottom center of the sliding block (27) extending downwards. A limiting component (40) is provided in the mounting tube (21) to limit the rotation of the sliding block (27). A driving component (30) is provided on the outside of the rotating ring (22) to drive the rotating ring (22) to rotate.

2. The water supply pressure regulating device for a rain test apparatus according to claim 1, characterized in that: The drive assembly (30) includes a spur gear (31) disposed on the outside of the rotating ring (22) and a mounting plate (32) disposed on the back plate of the test chamber. A slider (33) is slidably disposed on the mounting plate (32). A plurality of spur racks (34) are disposed on the side of the slider (33) near the back plate of the test chamber. The end of the spur rack (34) away from the slider (33) passes through the back plate of the test chamber and meshes with the corresponding spur gear (31). A power assembly (35) for driving the slider (33) to slide on the mounting plate (32) is disposed on the mounting plate (32).

3. The water supply pressure regulating device for a rain test apparatus according to claim 2, characterized in that: The power assembly (35) includes a mounting base (36) disposed on the mounting plate (32), a lead screw (37) rotatably disposed between the mounting base (36) and the back plate of the test chamber, a threaded hole is provided on the slider (33), the slider (33) is helically disposed on the lead screw (37) through the threaded hole, a drive motor (38) is disposed on one side of the lead screw (37), and the output shaft of the drive motor (38) is connected to the lead screw (37).

4. The water supply pressure regulating device for a rain test apparatus according to claim 2, characterized in that: The lower end of the fixed frame (10) is provided with a support frame (13), and the straight rack (34) is slidably mounted on the support frame (13) at the end away from the slider (33).

5. The water supply pressure regulating device for a rain test apparatus according to claim 1, characterized in that: The limiting component (40) includes a strip plate (41) disposed in the inner cavity of the mounting tube (21). A square hole (42) is provided on the strip plate (41). A square rod (43) is slidably disposed in the square hole (42). The lower end of the square rod (43) is fixedly connected to the upper end of the sliding block (27).

6. The water supply pressure regulating device for a rain test apparatus according to claim 1, characterized in that: The outlet pipe (12) has an external thread at the end away from the main water pipe (11), and the installation pipe (21) has an internal thread. The main water pipe (11) and the installation pipe (21) are connected by the external thread and the internal thread to form a spiral connection.

7. The water supply pressure regulating device for a rain test apparatus according to claim 1, characterized in that: An annular boss (14) is provided on the outer wall of the top of the rotating ring (22), and an annular groove (15) that mates with the annular boss (14) is provided inside the mounting tube (21).

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