Rain test device and control method thereof

Abstract

The invention discloses a rain test device and a control method thereof. The rain test device provided by the invention is used for carrying out a rain test on a test piece, and comprises a base; the spraying module sprays water in the spraying pipeline to the test piece; the water return module is used for collecting water sprayed to the test piece by the spray head and conveying the water in the water collecting tank to the spray pipeline; the posture adjusting module is connected with the test piece and can adjust the posture of the test piece, so that the test piece is matched with the position of the spraying module; the measuring module comprises a collecting piece and a measuring assembly, the collecting piece is connected to the side, back to the spraying module, of the test piece, and a water outlet is formed in the collecting piece; after the rain test is finished, the posture of the test piece is adjusted through the posture adjusting module, the collecting piece is made to be close to the base relative to the test piece so as to collect leakage water of the test piece, and the leakage water is discharged to the measuring assembly through the water outlet to be measured to obtain corresponding leakage water amount information. According to the invention, leakage water quantity information of leakage water can be obtained, and accurate measurement of the test piece can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of rain test, and in particular to a rain test device and a control method thereof. Background Art

[0002] The sealing performance of the cabin door is closely related to the flight safety of the aircraft, and its sealing performance is also directly related to airworthiness certification. The traditional rain test method is to manually use a water pipe to spray around the cabin door. This method is difficult to ensure the uniformity of the spray and cannot accurately simulate the aircraft's rain conditions in a real flight environment, resulting in the inability to grasp the aircraft's true waterproof performance. In addition, the traditional leakage detection method can only visually check the position and cannot obtain leakage data. Summary of the invention

[0003] The present application provides a rain test device and a control method thereof, which can accurately simulate the rain condition of an aircraft in a real flight environment, and can also obtain leakage data, thereby understanding the real waterproof performance of the aircraft cabin door.

[0004] To achieve the above-mentioned purpose, on the one hand, the present application provides a rain test device for performing a rain test on a test piece, the rain test device comprising:

[0005] Pedestal;

[0006] A spray module, comprising a spray bracket, a spray pipe and a plurality of spray heads, wherein the spray bracket is arranged on the base and supports and fixes the spray pipe, and the plurality of spray heads are all connected to the spray pipe to spray water in the spray pipe to the test piece;

[0007] A water return module, comprising a water collection tank and a water return assembly, wherein the water collection tank is arranged below the base to collect water sprayed by the nozzle to the test piece, and the water return assembly is arranged on the base to transport the water in the water collection tank to the spray pipe;

[0008] a posture adjustment module, which is disposed on the base and connected to the test piece and is capable of adjusting the posture of the test piece so that the position of the test piece matches that of the spray module;

[0009] The measuring module comprises a collecting member and a measuring assembly, wherein the collecting member is connected to a side of the test piece facing away from the spraying module, and a drain port is provided on the collecting member;

[0010] Among them, after the rain test is completed, the spray pipe is cut off, and the posture of the test piece is adjusted by the posture adjustment module, so that the collecting piece is close to the base relative to the test piece to collect the leakage water of the test piece. The leakage water is discharged through the drain port to the measuring component to measure and obtain the corresponding leakage water amount information.

[0011] On the other hand, the present application also provides a control method for a rain test device, which is applied to the rain test device described in the above technical solution, and the control method includes:

[0012] Adjustment step: adjusting the test piece's posture so that the spray head of the spray module matches the position of the test piece;

[0013] Starting the rain shower step: starting the spray module to perform a rain shower test on the test piece, and controlling the water return component in the water return module to be turned on to transport the water in the water collection tank to the spray pipe;

[0014] Turn off the rain shower step: turn off the spray pipe and the water return module;

[0015] Measuring steps: adjusting the posture of the test piece so that the collecting piece is close to the base relative to the test piece to collect the leaked water of the test piece, the leaked water is discharged through the drain port, and the amount of water discharged from the drain port is measured to obtain the leakage water amount information of the test piece.

[0016] The technical solution of the present application has at least the following beneficial effects: during specific use, the posture of the test piece is first adjusted by the posture adjustment module so that the position of the spray module matches it, ensuring that the water sprayed from the nozzle in the spray module can be accurately sprayed onto the test piece to test the sealing performance and drainage performance of the test piece. When the spray water is sprayed onto the test piece, it will flow downward along the test piece under the action of gravity, and then be collected in the water collection tank of the return water module, and then be re-delivered to the spray pipe through the return water assembly and then sprayed out through the nozzle, thereby realizing the recycling of the spray water. After the spray module has been running for a period of time and it is confirmed that the rain test is over, the spray pipe is cut off to stop the nozzle from continuing to spray water. The posture adjustment module adjusts the posture of the test piece and rotates the test piece by an angle so that the collecting piece is close to the base relative to the test piece, that is, the collecting piece is located below the test piece. If the sealing performance of the test piece is not good, some water will leak from the test piece toward one side of the spray module to the other side of the test piece, and then be collected in the collecting piece under the action of gravity. Subsequently, the leakage water amount information of the leaked water is measured by the measuring component, thereby realizing the automated rain test of the test piece, and the leakage water amount information of the leaked water can be measured by the measuring module to achieve accurate measurement of the waterproof performance of the test piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a system framework diagram of the rain test device in the embodiment of the present application;

[0019] Figure 2 This is one of the three-dimensional structural diagrams of the rain test device in the embodiment of the present application;

[0020] Figure 3 This is the second three-dimensional structural diagram of the rain test device in the embodiment of the present application;

[0021] Figure 4 is a stereoscopic diagram of a posture adjustment module in a rain test device in an embodiment of the present application;

[0022] Figure 5 is a stereoscopic diagram of a spray module in a rain test device according to an embodiment of the present application;

[0023] Figure 6 is a three-dimensional diagram of a water return module in a rain test device in an embodiment of the present application;

[0024] Figure 7 is a stereoscopic diagram of a test module in a rain test device in an embodiment of the present application;

[0025] Figure 8 This is one of the control flow charts of the rain test device in the embodiment of the present application;

[0026] Fig. 9 This is the second control flow chart of the rain test device in the embodiment of the present application.

[0027] The main reference numerals in the drawings of this application specification are described as follows:

[0028] 10- base;

[0029] 20-spray module; 201-spray bracket; 202-spray head; 203-vertical adjustment assembly; 2031-connecting threaded hole; 204-first adapter;

[0030] 30-water return module; 301-water collection tank; 302-water return assembly; 3021-water storage tank; 3022-water return pipeline; 3023-first water pump; 3024-water supply pipeline; 303-second bracket;

[0031] 40-attitude adjustment module; 401-rotation module; 402-pitch adjustment module; 4021-fixed bracket; 4022-pitch drive member; 403-movement adjustment module; 4031-mounting bracket; 40311-mounting column; 40312-carrying plate; 4032-longitudinal movement component; 4033-horizontal movement component;

[0032] 50-measurement module; 501-collection component; 5011-drain outlet; 502-monitoring component; 503-first bracket;

[0033] 100-test piece; 200-second adapter;

[0034] Z-first direction; X-second direction; Y-third direction. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and beneficial effect of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are only for explaining the present invention, not for limiting the present invention. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of this application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" refers to two or more, unless otherwise clearly and specifically defined.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] The rain test of aircraft usually uses a climate environment laboratory that can simulate a variety of climate environments to simulate the rain environment. The climate environment laboratory refers to a laboratory that can simulate a variety of climate environments, and the rain environment is one of the simulated environments. The rain test device provided in this application can be applied to the rain test of aircraft cabin doors, that is, the test piece of this application can be an aircraft cabin door, such as a boarding door, a service door, a cargo door, and other cabin doors that are in direct contact with the external natural environment.

[0041] The rain test device provided in this application is used for the rain test of aircraft cabin doors, and the rain test is used to study the sealing performance and drainage performance of the cabin door. The sealing performance of the cabin door is closely related to the flight safety of the aircraft, and its sealing performance is also directly related to airworthiness certification. The traditional rain test method is to manually use a water pipe to spray around the cabin door. This method is not only difficult to ensure the uniformity of the spray, but also cannot ensure that the spray angle is perpendicular to the cabin door. At the same time, the traditional leakage detection method can only visually check the position and cannot obtain leakage data.

[0042] Therefore, the present application provides a rain test device and a control method thereof, which can realize accurate measurement of leakage, and is described in detail below. It should be noted that the description order of the following embodiments is not a limitation on the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For the part that is not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0043] Reference Figure 1 to Figure 3The rain test device provided in the present application is used to perform a rain test on a test piece 100. The rain test device includes a base 10, a spray module 20, a return water module 30, a posture adjustment module 40 and a measurement module 50. The base 10 is used to carry the above-mentioned multiple modules so that the rain test device constitutes an integrated modular device, which is convenient for subsequent transportation. The spray module 20 includes a spray bracket 201, a spray pipe and a plurality of nozzles 202. The spray bracket 201 is arranged on the base 10 and supports and fixes the spray pipe. The plurality of nozzles 202 are connected to the spray pipe to spray the water in the spray pipe to the test piece 100. The return water module 30 includes a water collection tank 301 and a return water assembly 302. The water collection tank 301 is arranged below the base 10 to collect the water sprayed by the nozzle 202 to the test piece 100. The return water assembly 302 is arranged on the base 10 to transport the water in the water collection tank 301 to the spray pipe. The posture adjustment module 40 is arranged on the base 10 and connected to the test piece 100, and can adjust the posture of the test piece 100 so that the positions of the test piece 100 and the spray module 20 are matched, and the spray direction of the nozzle 202 in the spray module 20 is ensured to be perpendicular to the test piece 100. The measuring module 50 includes a collecting member 501 and a measuring assembly. The collecting member 501 is connected to the side of the test piece 100 facing away from the spray module 20, and a drain port 5011 is provided on the collecting member 501. After the rain test is finished, the spray pipe is cut off, and the posture of the test piece 100 is adjusted by the posture adjustment module 40, so that the collecting member 501 is close to the base 10 relative to the test piece 100 to collect the leakage water of the test piece 100, and the leakage water is discharged to the measuring assembly through the drain port 5011 to measure and obtain the corresponding leakage water amount information.

[0044] During specific use, the posture of the test piece 100 is first adjusted through the posture adjustment module 40 to match the position of the spray module 20 therewith, ensuring that the water sprayed from the nozzle 202 in the spray module 20 can be accurately sprayed onto the test piece 100, so as to test the sealing performance and drainage performance of the test piece 100. When the spray water is sprayed onto the test piece 100, it will flow downward along the test piece 100 under the action of gravity, and thus be collected in the water collection tank 301 of the return water module 30, and then be re-delivered to the spray pipe through the return water component 302 and then sprayed out through the nozzle 202, thereby realizing the recycling of the spray water. After the spray module 20 runs for a period of time and confirms that the rain test is over, the spray pipe is cut off to prevent the nozzle 202 from continuing to spray water. The posture adjustment module 40 adjusts the posture of the test piece 100 and rotates the test piece 100 by an angle so that the collecting piece 501 is close to the base 10 relative to the test piece 100, that is, the collecting piece 501 is located below the test piece 100. If the sealing performance of the test piece 100 is not good, some water will leak from the test piece 100 toward one side of the spray module 20 to the other side of the test piece 100, and then be collected in the collecting piece 501 under the action of gravity. Subsequently, the leakage water amount information of the leaked water is measured by the measuring component, thereby realizing the automated rain test of the test piece 100, and the leakage water amount information of the leaked water can be measured and obtained by the measuring module to realize the accurate measurement of the waterproof performance of the test piece 100.

[0045] It is understandable that, under normal circumstances, the water sprayed by the spray module 20 is directly sprayed onto the outer side of the test piece 100, and the collecting member 501 is connected to the inner side of the test piece 100. Specifically, the outer side of the test piece 100, that is, when the test piece 100 is installed on the fuselage of the aircraft, the test piece 100 is exposed to the outer wall surface of the fuselage. The inner side of the test piece 100, that is, when the test piece 100 is installed on the fuselage of the aircraft, the test piece 100 is located on the inner wall surface of the fuselage cabin. For example, the above-mentioned measuring component can be a weighing mechanism, and the weighing mechanism is used to obtain the weight parameters of the leaking water, and the leaking water amount information includes the leaking water amount. Alternatively, the above-mentioned measuring component includes a measuring cup with a scale, and water can be collected in the measuring cup through the drain port 5011, and the weight parameters of the leaking water can be obtained by observing the relationship between the scale lines on the measuring cup and the water surface. Among them, in order to collect the spray water, the above-mentioned water collecting tank 301 is arranged at the bottom of the entire rain test device, the base 10 is arranged in the water collecting tank 301, and the projections of the base 10, the spray module 20, the return water module 30, the posture adjustment module 40 and the measurement module 50 are all located in the water collecting tank 301, ensuring that the spray water can be completely collected in the water collecting tank 301.

[0046] Furthermore, the attitude adjustment module 40 can also realize multi-attitude adjustment of the test piece 100. For example, when performing a spray test, the attitude adjustment module 40 can drive the test piece 100 to adjust its attitude to reproduce the attitude scenes of the test piece 100 (cabin door) in various practical applications such as aircraft parking, climbing and landing, and further improve the accuracy of the rain test.

[0047] Furthermore, the corresponding leakage water amount information measured by the measuring component in the measuring module 50 can also be used to correct the spray module 20 and the posture adjustment module 40. For example, if the measuring component does not measure the leakage water amount, that is, it indicates that the test piece 100 does not leak, the position of the spray module 20 and / or the posture adjustment module 40 can be further adjusted to make the spray module 20 closer to the test piece 100, and start the spray test.

[0048] In order to obtain the leakage position and leakage time of the test piece 100 , the measurement module 50 further includes a monitoring component 502 . The monitoring component 502 is disposed on the base 10 and is located on a side of the collecting component 501 facing the test piece 100 .

[0049] In some embodiments, the collecting member 501 is a transparent cover plate, and the monitoring component 502 includes a visual acquisition component, which is fixedly supported on the base 10 by the first bracket 503 and is located on the side of the test piece 100 close to the cover plate to collect image information of the test piece 100. Before the rain test, a dry and wet indicator is coated on the side of the test piece 100 close to the cover plate, and then the cover plate is installed on the side of the test piece 100 facing away from the spray module 20. Based on the performance of the dry and wet indicator changing color when exposed to water, the image information collected by the visual acquisition component will change, and the visual acquisition component can confirm the leakage position and leakage time of the test piece 100 based on the image information. That is, the image information of the inner wall surface of the test piece 100 can be collected in real time through the visual acquisition component. At the same time, the visual acquisition component can provide high-resolution image information, can capture tiny leakage positions and changes, help to accurately locate the leakage point, and improve the accuracy of detection. In addition, the collected image information can be processed and analyzed to determine the leakage location and leakage time, making the monitoring results more intuitive and visual, and convenient for operators to analyze and judge. In specific use, it is only necessary to point the visual acquisition component toward the inner wall surface of the test piece 100, which will not affect the integrity and function of the test piece 100. For example, the wet-dry indicator can be a material that changes color after absorbing moisture, such as color-changing ink, wet-dry color-changing film, color-changing sticker, color-changing silica gel, etc. The above-mentioned visual acquisition component can be a camera.

[0050] In other embodiments, the monitoring component includes a plurality of humidity sensors (not shown in the drawings), which are respectively arranged at different positions of the test piece 100 on the side facing the collecting member 501, and are used to collect humidity information at different positions of the test piece 100 to obtain the leakage position and leakage time of the test piece 100. By arranging a plurality of humidity sensors at different positions, multiple positions of the test piece 100 can be monitored simultaneously to more comprehensively understand the leakage of the test piece 100 and avoid omissions or misjudgments. In addition, the humidity sensor can collect humidity information in real time to timely discover the leakage of the test piece 100. Each humidity sensor can independently record and store humidity data and has an independent identification, so that the leakage at each position can be traced, which is convenient for subsequent data analysis and troubleshooting.

[0051] It should be noted that in some embodiments, the monitoring component 502 may only include a visual acquisition component, in some embodiments, the monitoring component may only include a humidity sensor, and in some embodiments, the monitoring component 502 may include both a visual acquisition component and a humidity sensor to simultaneously have the advantages of both detection methods.

[0052] like Figure 2 and Figure 4 As shown, in order to achieve multi-directional and multi-angle adjustment of the test piece 100 to ensure that the spray water sprayed by the nozzle 202 in the spray module 20 is accurately sprayed to the test piece 100, it is assumed that the rain test device provided by the present application includes a first direction Z, a second direction X and a third direction Y that intersect each other. The above-mentioned attitude adjustment module 40 includes a rotation module 401, a pitch adjustment module 402 and a movement adjustment module 403. The rotation module 401 is installed in the water collection tank 301 and is connected to the bottom of the base 10 to drive the base 10 to rotate around the first direction Z. The pitch adjustment module 402 includes a fixed bracket 4021 and a pitch driving member 4022, the fixed bracket 4021 is arranged on the base 10, and the pitch driving member 4022 is arranged on the fixed bracket 4021. The moving adjustment module 403 includes a mounting bracket 4031, a longitudinal moving assembly 4032 and a horizontal moving assembly 4033. The mounting bracket 4031 is fixedly connected to the pitch driving member 4022. The longitudinal moving assembly 4032 is arranged on the mounting bracket 4031 to adjust the position of the test piece 100 in the first direction Z. The horizontal moving assembly 4033 is arranged on the mounting bracket 4031 to adjust the position of the test piece 100 in the second direction X. The pitch driving member 4022 is used to drive the mounting bracket 4031 to rotate around the third direction Y. For example, the base 10 is a plate-shaped structure.

[0053] During specific use, the pitch drive member 4022 can drive the mobile adjustment module 403 installed on the mounting bracket 4031 to rotate synchronously with the test piece 100 around the third direction Y through the mounting bracket 4031, so as to drive the test piece 100 to switch between the spraying position and the collection position. In the spraying position, the pitch adjustment module 402 drives the test piece 100 to rotate so that the position of the test piece 100 is opposite to the spray module 20. Specifically, there are multiple spraying positions to simulate the scenes of the test piece 100 (cabin door) at different angles of the cabin door under different postures during the flight of the aircraft, and then spray it. The attached figure only shows the scene when the cabin door is roughly in a vertical state. In the collection position, the pitch adjustment module 402 drives the test piece 100 to rotate, and the position of the test piece 100 is far away from the base 10 relative to the position of the collecting member 501, and is roughly in a horizontal state. For example, the pitch drive component 4022 includes a pitch drive motor or a hand wheel, which can drive the mounting bracket 4031 and the remaining components mounted on the mounting bracket 4031 to rotate around the third direction Y, thereby realizing the rotation of the cabin door mounted on the mounting bracket 4031 around the third direction Y.

[0054] In some embodiments, in order to reduce the manufacturing cost of the rain test device, the mounting bracket 4031 includes a mounting column 40311, which has two mounting columns 40311 and is arranged at intervals along the third direction Y, and the bearing plate 40312 is connected between the two mounting columns 40311. The longitudinal moving assembly 4032 includes a plurality of first pads, and the position of the test piece 100 in the first direction Z can be adjusted by arranging different numbers of first pads between the bottom of the test piece 100 and the bearing plate 40312. The horizontal moving assembly 4033 includes a plurality of second pads, and the position of the test piece 100 in the second direction X can be adjusted by clamping different numbers of second pads between the test piece 100 and the mounting column 40311.

[0055] In some embodiments, in order to realize the automation of the rain test device, the longitudinal moving component 4032 includes a longitudinal driving member, a slide rail and a slider. The slide rail extends along the first direction Z, and is provided with a slide groove extending along the first direction Z. The slider is slidably fitted in the slide groove. The longitudinal driving member is used to drive the slider to slide in the slide groove, and the test piece 100 is connected to the slider. The horizontal moving component 4033 is arranged on the mounting bracket 4031 and is transmission-connected to the bottom end of the slide rail. The horizontal moving component 4033 drives the slide rail to move along the second direction X. In other words, the horizontal moving component 4033 is directly connected to the mounting bracket 4031, and the longitudinal moving component 4032 is arranged on the horizontal moving component 4033 and is indirectly arranged on the mounting bracket 4031. By way of example, the horizontal moving component 4033 can be any one of a lead screw nut, a slide rail mechanism, a gear rack, and a sprocket chain mechanism. Of course, the longitudinal moving assembly 4032 can also be a screw nut structure, the longitudinal driving member is used to drive the screw to rotate around its own axis, the axis of the screw is parallel to the first direction Z, and the horizontal moving assembly 4033 is connected to the bottom end of the screw. It can be understood that the horizontal moving assembly 4033 includes a driving member, an active member and a driven member, the driving member is connected to the driven member through the active member to drive the driven member to move along the second direction X, and the driven member is fixedly connected to the bottom end of the screw or the guide rail.

[0056] The present application does not specifically limit the specific implementation method of the posture adjustment structure, as long as it can achieve the posture adjustment of the cabin door, for example, the posture adjustment structure can also be a purchased six-degree-of-freedom robot, and the cabin door is fixed to the execution end of the six-degree-of-freedom robot through a connecting component. The base of the six-degree-of-freedom robot is fixed on the base 10.

[0057] Combination Figure 2 and Figure 5The spray module 20 includes a vertical adjustment component 203, which is connected to the attitude adjustment module 40 or the base 10. For example, the vertical adjustment component 203 is arranged on the follower of the horizontal moving component 4033 in the above technical solution, or the vertical adjustment component 203 is arranged on the pitch driving component 4022 in the above technical solution, or the vertical adjustment component 203 is directly installed on the base 10. The spray bracket 201 is connected to the vertical adjustment component 203 and moves along the first direction Z under the action of the vertical adjustment component 203. The spray bracket 201 is annular, and the spray pipe is a flexible pipe and is accommodated in the hollow spray bracket 201. Each nozzle 202 is connected to the flexible pipe. The spray bracket 201 can move along the first direction Z through the vertical adjustment component 203. The height of the spray bracket 201 can be adjusted as needed, which helps to ensure the coverage of the spray. The spray pipe is a flexible pipe that can be bent and adjusted as needed, so that it can be installed inside the spray bracket 201. The spray bracket 201 can then provide mechanical protection for the flexible spray pipe and fix and support the flexible spray pipe so that it can be arranged in a ring shape, thereby ensuring the spray area or spray area of ​​the test piece 100.

[0058] For example, the vertical adjustment component 203 is connected to the posture adjustment module 40 or the base 10 through the first adapter 204, and the vertical adjustment component 203 includes a vertical plate, and the spray bracket 201 is fixedly connected to the vertical plate by fastening screws. The vertical plate is provided with a plurality of connection threaded holes 2031 arranged at intervals along the first direction Z. The fastening screws can be connected to any connection threaded hole on the vertical plate to achieve position adjustment of the spray bracket 201 in the first direction Z. Alternatively, the vertical adjustment component 203 is a screw nut or a gear rack mechanism.

[0059] It should be noted that, for the embodiment in which the vertical adjustment component 203 is arranged on the follower of the horizontal moving component 4033 in the above technical solution, the spray bracket 201 is connected to the vertical adjustment component 203. In other words, the spray bracket 201 can rotate synchronously with the test piece 100 under the drive of the pitch adjustment module 402, and can move along the second direction X following the follower of the horizontal moving component 4033. That is, the posture adjustment module 40 is used to synchronously adjust the posture of the spray module 20 and the test piece 100, and during the adjustment process of the posture adjustment module 40, the spray module 20 and the test piece 100 remain relatively still. At the same time, when the test piece 100 is adjusted to any spraying position by the posture adjustment module 40, the position of the spray bracket 201 in the first direction Z can be fine-tuned by the vertical adjustment component 203 of the spray module 20, and the position of the spray bracket 201 in the second direction X can be fine-tuned by adjusting the installation position of the first adapter 204 in the second direction X.

[0060] In order to ensure that the spray module 20 achieves uniform spraying, when the spray module 20 matches the position of the test piece 100, the spray bracket 201 covers the edge position of the test piece 100, and the spray direction of each nozzle 202 is perpendicular to the test piece 100 at the corresponding position, which helps to ensure that each part of the test piece 100 can receive uniform spraying and avoid missing any area of ​​the test piece 100. The verticality of the spraying direction can ensure that the spray water directly hits the surface of the test piece 100 and ensures that the spray intensity of the spray water is strong. At this time, if the sealing performance of the test piece 100 is weak, the spray water will leak to the other side of the test piece 100, which can improve the test accuracy of the rain test.

[0061] Based on the above embodiment, each nozzle 202 is connected to the spray pipe through its own water supply branch pipe, and each water supply branch pipe is provided with a regulating valve and a flow meter, so that the flow rate of water in each water supply branch pipe can be obtained through the flow meter. If the flow rate of water in the water supply branch pipe is inconsistent with the preset flow rate value, the regulating valve on the water supply branch pipe can be adjusted so that the flow rate of water in the water supply branch pipe approaches the preset flow rate value, thereby ensuring the spraying uniformity of the spray module 20.

[0062] In order to ensure that the spraying direction of each nozzle 202 is perpendicular to the test piece 100 at the corresponding position, each nozzle 202 is rotatably connected to the corresponding water supply branch pipe through the corresponding steering connector to adjust its spraying direction.

[0063] Reference Figure 2 and Figure 6 The return water assembly 302 further includes a water storage tank 3021, a return water pipeline 3022, a first water pump 3023, a water supply pipeline 3024 and a second water pump. The water storage tank 3021 is fixedly arranged on the base 10 through the second bracket 303. The return water pipeline 3022 connects the water collecting tank 301 and the water storage tank 3021. The first water pump 3023 is arranged on the return water pipeline 3022 and is located at the bottom of the water collecting tank 301. The water supply pipeline 3024 is connected to the spraying pipeline to supply water to the spraying pipeline. The second water pump is arranged on the water supply pipeline 3024. The first water pump 3023 and the second water pump can extract liquid from a low place and lift it to a high place, overcome gravity and terrain difference, and maintain the circulation of liquid. The water storage tank 3021 can balance the water pressure in the water supply pipeline 3024 and maintain a stable water pressure in the water supply pipeline 3024. Alternatively, the height of the second bracket 303 can be increased so that the lowest position of the water tank 3021 is higher than the highest position of the spray pipe. In this case, there is no need to install a second water pump on the water supply pipe 3024, and the water in the water tank 3021 can directly enter the spray pipe through the water supply pipe 3024.

[0064] Among them, the water supply pipeline 3024 and the spray pipeline can be fluidly connected through a hose, and the spray bracket 201 is provided with a passage so that the end of the spray pipeline can pass through the spray bracket 201 and be fluidly connected with the water supply pipeline 3024. In order to ensure that the spray water on the base 10 can be smoothly collected in the water collection tank 301, the base 10 is provided with a plurality of diversion holes that penetrate along the first direction Z to smoothly guide the water above the base 10 to the water collection tank 301 below the base 10, so as to prevent water accumulation above the base 10. In the second direction X, the return water component 302 is arranged opposite to the pitch adjustment module 402, thereby avoiding the interference between the motion trajectory of the test piece 100 and the return water component 302 when the pitch adjustment module 402 is used to adjust the posture of the test piece 100.

[0065] In order to ensure that the water collected in the collecting member 501 can be smoothly discharged from its drain port 5011 and measured by the measuring assembly in the measuring module 50, the distance between the collecting member 501 and the wall of the test piece 100 facing the collecting member 501 gradually increases from the edge of the collecting member 501 to the drain port 5011. It can also be understood that when the posture adjustment module 40 adjusts the posture of the test piece 100 so that the collecting member 501 is close to the base 10 relative to the test piece 100, the distance between the collecting member 501 and the base 10 gradually decreases from the edge of the collecting member 501 to its drain port 5011 to ensure that the drain port 501 is at the lowest position.

[0066] It should be noted that the above-mentioned pitch adjustment module 402 is also used to repeatedly shake the test piece 100 to shake off the water droplets on the wall surface of the test piece 100. Then the pitch adjustment module 402 is used to rotate the test piece 100 by an angle so as to roughly adjust it to a horizontal state to ensure that the drain outlet 5011 of the collection piece 501 is at the lowest position, thereby facilitating the collection of leaked water.

[0067] Among them, the distance between the collecting piece 501 and the wall of one side of the test piece 100 facing the collecting piece 501 gradually increases in the direction from the edge of the collecting piece 501 to the drain outlet 5011. This can be achieved by gradually reducing the thickness of the plate-like collecting piece 501 from its edge to the drain outlet 5011, or, the collecting piece 501 is a hollow conical structure, the drain outlet 5011 is located at the small end of the conical structure, and the large end of the conical structure is sealed and connected to the edge of the hatch.

[0068] For example, Figure 7 As shown, the test module includes a test piece 100, a second adapter 200 and a status indicator. The second adapter 200 is used to connect the test piece 100 and the collecting piece 501, and is also used to achieve a mechanical connection between the test piece 100 and the horizontal moving assembly 4033.

[0069] Reference Figure 8 The present application also provides a control method for a rain test device, which is applied to the rain test device described in any of the above technical solutions, and the control method includes an adjustment step, a rain start step, a rain stop step and a measurement step. The adjustment step can adjust the posture of the test piece 100 so that the nozzle 202 of the spray module 20 matches the position of the test piece 100. The rain start step includes starting the spray module 20 to perform a rain test on the test piece 100, and controlling the conduction of the return water component 302 in the return water module 30 to transport the water in the water collection tank 301 to the spray pipe. The rain stop step includes shutting off the spray pipe and the return water module 30. The measurement step includes adjusting the posture of the test piece 100 so that the collecting member 501 is close to the base 10 relative to the test piece 100 to collect the leaked water of the test piece 100, and the leaked water is discharged through the drain port 5011, and the amount of water discharged from the drain port 5011 is measured to obtain the leaked water amount information of the test piece 100.

[0070] During specific use, the position or posture of the test piece 100 is first adjusted through the adjustment steps to match the position of the spray module 20 therewith, ensuring that the water sprayed from the nozzle 202 in the spray module 20 can be accurately sprayed onto the test piece 100, and the sealing performance and drainage performance of the test piece 100 are tested. When the spray water is sprayed onto the test piece 100, it will flow downward along the test piece 100 under the action of gravity, and then be collected in the water collection tank 301 of the return water module 30, and then be re-transported to the spray pipe through the conduction of the return water component 302 and then sprayed out through the nozzle 202, thereby realizing the recycling of the spray water. After the spray module has been running for a period of time and it is confirmed that the rain test is over, the spray pipe is cut off to prevent the nozzle 202 from continuing to spray water. The posture adjustment module 40 adjusts the posture of the test piece 100 and rotates the test piece 100 by an angle so that the collecting piece 501 is close to the base 10 relative to the test piece 100, that is, the collecting piece 501 is located below the test piece 100. If the sealing performance of the test piece 100 is not good, some water will leak from the test piece 100 toward one side of the spray module 20 to the other side of the test piece 100, and then be collected in the collecting piece 501. Subsequently, the leakage water amount information of the leaked water is measured by the measuring component, thereby realizing the automated rain test of the test piece 100 and realizing the accurate measurement of the leakage water amount information of the leaked water.

[0071] Based on the above embodiment, before the adjustment step, it also includes: coating a dry and wet indicator on the side of the test piece 100 facing the collecting piece 501, and then connecting the collecting piece 501 to the side of the test piece 100 facing away from the spray module 20. And, after starting the rain shower step and before closing the rain shower step, it also includes: collecting image information of the side of the test piece 100 facing the collecting piece 501 in real time, and confirming the leakage position and leakage time of the test piece 100 based on the image information. According to the collected image information, it is possible to capture the tiny leakage position and changes, which helps to accurately locate the leakage point and improve the accuracy of the detection. In addition, the collected image information can also be processed and analyzed to determine the leakage position and leakage time, so that the monitoring results are more intuitive and visual, which is convenient for operators to analyze and judge.

[0072] In order to ensure that the water pressure of each nozzle 202 is consistent and the spraying uniformity of the spray module 20 in the rain test is guaranteed, Fig. 9 As shown, after the step of starting the spray module 20 to perform a rain test on the test piece 100, it also includes: collecting flow information of water in a water supply branch pipe, wherein the water supply branch pipe connects the nozzle 202 and the spray pipe; judging whether the flow information satisfies the flow value corresponding to the rain test condition; if not, adjusting the flow of water in the water supply branch pipe, and returning to the step of collecting the flow information of water in the water supply branch pipe; if satisfied, monitoring the rain duration of the test piece 100, and when the rain duration reaches a preset duration, determining that the rain test is over and executing the step of closing the rain.

[0073] In some embodiments of the present application, the adjustment step also includes: adjusting the height of the spray bracket 201 and adjusting the angle of the spray head 202 so that the spray direction of the spray head 202 is perpendicular to the test piece 100 at the corresponding position, ensuring that the spray water is sprayed to the test piece 100 with maximum pressure to improve the detection accuracy.

[0074] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0075] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims. In addition, the specification uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and its core idea of ​​the present application. The content of this specification should not be understood as a limitation on the present application.

Claims

1. A rain test device, characterized in that: Used to perform rain test on test pieces, including: Pedestal; A spray module, comprising a spray bracket, a spray pipe and a plurality of spray heads, wherein the spray bracket is arranged on the base and supports and fixes the spray pipe, and the plurality of spray heads are all connected to the spray pipe to spray water in the spray pipe to the test piece; A water return module, comprising a water collection tank and a water return assembly, wherein the water collection tank is arranged below the base to collect water sprayed by the nozzle to the test piece, and the water return assembly is arranged on the base to transport the water in the water collection tank to the spray pipe; a posture adjustment module, which is disposed on the base and connected to the test piece and is capable of adjusting the posture of the test piece so that the position of the test piece matches that of the spray module; The measuring module comprises a collecting member and a measuring assembly, wherein the collecting member is connected to a side of the test piece facing away from the spraying module, and a drain port is provided on the collecting member; Among them, after the rain test is completed, the spray pipe is cut off, and the posture of the test piece is adjusted by the posture adjustment module, so that the collecting piece is close to the base relative to the test piece to collect the leakage water of the test piece. The leakage water is discharged through the drain port to the measuring component to measure and obtain the corresponding leakage water amount information.

2. The rain test device according to claim 1, characterized in that: The measuring module further comprises a monitoring component, which is arranged on the base and located on a side of the collecting component facing the test piece, and is used to monitor the leakage position and leakage time of the test piece.

3. The rain test device according to claim 2, characterized in that: The collecting piece is a transparent cover plate, and the monitoring component includes a visual collection component, which is arranged on the base and located on a side of the test piece close to the cover plate to collect image information of the test piece. Before the rain test, a wet-dry indicator is coated on a side of the test piece close to the collecting piece. Based on the performance of the wet-dry indicator changing color when exposed to water, the visual collection component can confirm the leakage position and leakage time of the test piece according to the image information.

4. The rain test device according to claim 2 or 3, characterized in that: The monitoring component includes a plurality of humidity sensors, which are respectively arranged at different positions of the test piece on a side facing the collecting piece, and are used to collect humidity information at different positions of the test piece to obtain the leakage position and leakage time of the test piece.

5. The rain test device according to claim 1, characterized in that: Comprising a first direction, a second direction and a third direction intersecting in pairs, the posture adjustment module comprises: A rotating module is installed in the water collecting tank and connected to the bottom of the base to drive the base to rotate around the first direction; A pitch adjustment module, comprising a fixed bracket and a pitch driving member, wherein the fixed bracket is arranged on a base, and the pitch driving member is arranged on the fixed bracket; The movable adjustment module includes a mounting bracket, a longitudinal movable component and a horizontal movable component. The mounting bracket is fixedly connected to the pitch driving component. The longitudinal movable component is arranged on the mounting bracket to adjust the position of the test piece in the first direction. The horizontal movable component is arranged on the mounting bracket to adjust the position of the test piece in the second direction. The pitch driving component is used to drive the mounting bracket to rotate around the third direction.

6. The rain test device according to claim 1, characterized in that: The spray module comprises: A vertical adjustment component connected to the posture adjustment module or the base; Among them, the spray bracket is connected to the vertical adjustment component and can move along the first direction under the action of the vertical adjustment component. The spray bracket is ring-shaped, the spray pipe is a flexible pipe, and is accommodated in the hollow interior of the spray bracket, and each of the spray heads is connected to the flexible pipe.

7. The rain test device according to claim 6, characterized in that: When the spray module matches the position of the test piece, the spray bracket covers the edge position of the test piece, and the spray direction of each of the spray heads is perpendicular to the test piece at the corresponding position.

8. The rain test device according to claim 1, 6 or 7, characterized in that: Each of the spray heads is connected to the spray pipe through a respective water supply branch pipe, and each of the water supply branch pipe is provided with a regulating valve and a flow meter.

9. The rain test device according to claim 1, characterized in that: The water return assembly comprises: A water storage tank, arranged on the base; A water return pipeline, connecting the water collecting tank and the water storage tank; A first water pump is arranged on the water return pipeline; a water supply pipeline, connected to the spray pipe to supply water to the spray pipe; The second water pump is arranged on the water supply pipeline.

10. The rain test device according to claim 1, characterized in that: From the edge of the collecting member to the drain port, the distance between the collecting member and a side wall of the test member facing the collecting member gradually increases.

11. A control method for a rain test device, characterized in that: The rain test device applied to any one of claims 1 to 10, wherein the control method comprises: Adjustment step: adjusting the test piece's posture so that the spray head of the spray module matches the position of the test piece; Starting the rain shower step: starting the spray module to perform a rain shower test on the test piece, and controlling the water return component in the water return module to be turned on to transport the water in the water collection tank to the spray pipe; Turn off the rain shower step: turn off the spray pipe and the water return module; Measuring steps: adjusting the posture of the test piece so that the collecting piece is close to the base relative to the test piece to collect the leaked water of the test piece, the leaked water is discharged through the drain port, and the amount of water discharged from the drain port is measured to obtain the leakage water amount information of the test piece.

12. The control method of the rain test device according to claim 11, characterized in that: Before the adjusting step, the method further comprises: Coating a dry-wet indicator on a side of the test piece facing the collecting piece, and then connecting the collecting piece to a side of the test piece facing away from the spray module; And, after the step of starting the shower and before the step of closing the shower, the method further includes: The image information of the side of the test piece facing the collecting piece is collected in real time, and the leakage position and leakage time of the test piece are confirmed based on the image information.

13. The control method of the rain test device according to claim 11, characterized in that: After the step of starting the spray module to perform a rain test on the test piece, the method further includes: Collecting flow information of water in a water supply branch pipe, wherein the water supply branch pipe is connected to the sprinkler head and the sprinkler pipe; Determine whether the flow information meets the flow value corresponding to the rain test condition; If not, the flow rate of the water in the water supply branch pipe is adjusted, and the process returns to the step of collecting the flow rate information of the water in the water supply branch pipe; If the conditions are met, the duration of the rain exposure of the test piece is monitored. When the duration of the rain exposure reaches a preset duration, the rain exposure test is determined to be over and the step of closing the rain exposure is performed.

14. The control method of the rain test device according to claim 11, characterized in that: The adjusting step further comprises: The angle of the nozzle is adjusted so that the spraying direction of the nozzle is perpendicular to the test piece at the corresponding position.

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