Waterproof testing device for pneumatic membrane

Abstract

The utility model discloses an inflatable membrane waterproof test device, which comprises a base, a platform is arranged above the base, an inflation pump is arranged on the right side of the upper end of the platform, an inflatable membrane is arranged on the left side of the upper end of the platform, the inflation pump is communicated with the inflatable membrane, a high-frequency electromagnetic valve is arranged on the outer surface of an output pipe of the inflation pump, and the high-frequency electromagnetic valve is communicated with the inflatable membrane. Fixing concave plates are arranged on the front side and the rear side of the upper portion of the base correspondingly, a driving mechanism is arranged in the fixing concave plate on the front side, a water suction pump is fixedly installed on the left side of a sliding plate, and the problem that the precision of a gas film waterproof test is not high is solved. According to the technical scheme, the waterproof testing device for the pneumatic membrane is provided. According to the utility model, the nozzle is matched with the dynamic spraying mechanism of the spraying disc and is matched with the high-frequency electromagnetic valve to simulate a real environment through high-frequency pressure fluctuation, so that the waterproof performance test, dynamic water pressure simulation and high-frequency pressure fluctuation of the pneumatic membrane under the dynamic water flow impact are realized, and the waterproof test precision of the pneumatic membrane is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of testing technology for the waterproof performance of inflatable membrane structures, and more specifically, it relates to an inflatable membrane waterproof testing device. Background Technology

[0002] An inflatable membrane waterproofing test device is a specialized instrument for testing the waterproofing performance of materials or products. Its core function is to inflate or fill a test chamber (usually a chamber formed by an inflatable membrane) with air and apply pressure to simulate water pressure conditions that may be encountered in real-world use, thereby evaluating the waterproofing performance of the tested object.

[0003] Traditional inflatable membrane waterproof testing devices only support static water pressure testing and cannot verify the waterproof performance of the breathable membrane under dynamic pressure, nor can they simulate dynamic water flow impact environments, resulting in insufficient test accuracy.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an inflatable membrane waterproof testing device, which solves the problems of insufficient testing accuracy and inability to simulate dynamic water flow impact environment of traditional devices.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an inflatable membrane waterproof testing device includes a base, a platform above the base, an air pump on the upper right side of the platform, an inflatable membrane on the upper left side of the platform, the air pump and the inflatable membrane being connected, a high-frequency solenoid valve on the outer surface of the output pipe of the air pump, a fixed concave plate on both the front and rear sides of the upper part of the base, a driving mechanism in the front fixed concave plate, a sliding plate threadedly connected to the outer surface of the driving mechanism, a water pump fixedly installed on the left side of the sliding plate, a water tank fixedly installed on the upper part of the sliding plate, the water pump and the water tank being connected, a water pipe connected to the lower end of the water tank, a nozzle fixedly installed on both the front and rear sides of the outer surface of the water pipe, a spray plate fixedly installed on the right end of the water tank, the spray plate being located above the inflatable membrane, two nozzles being located in front of and behind the inflatable membrane, and a humidity sensor fixedly installed on both the front and rear sides of the right end of the sliding plate.

[0007] The present invention is further configured such that: the driving mechanism includes a servo motor, a lead screw is fixedly installed at the output end of the servo motor, the lead screw is movable inside the front fixed concave plate, the servo motor is fixedly connected to the right end of the fixed concave plate, and the slide plate is threadedly connected to the outer surface of the lead screw.

[0008] The present invention is further configured such that: the bottom and the front and rear sides of the platform are provided with a number of water outlet holes.

[0009] The present invention is further configured such that: a water collection box is placed on the upper end of the base, a filter screen is fixedly installed in the inner cavity of the water collection box, and the water pump pipe is connected to the water collection box.

[0010] In summary, this utility model has the following beneficial effects:

[0011] 1. By using a dynamic spraying mechanism consisting of a nozzle and a spray plate, combined with a high-frequency solenoid valve to simulate high-frequency pressure fluctuations in a real environment, the waterproof performance of the inflatable membrane under dynamic water flow impact was tested. The dynamic water pressure simulation and high-frequency pressure fluctuations significantly improved the accuracy of the waterproof test of the inflatable membrane. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of the left side of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the drive mechanism of this utility model.

[0015] In the diagram: 1. Base; 2. Platform; 3. Air pump; 4. Air inflator; 5. High-frequency solenoid valve; 6. Fixed concave plate; 7. Drive mechanism; 8. Slide plate; 10. Water pump; 11. Water tank; 12. Water pipe; 13. Spray head; 14. Spray tray; 15. Humidity sensor; 71. Servo motor; 72. Lead screw; 16. Water outlet; 17. Water collection box; 18. Filter screen. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] An inflatable membrane waterproof testing device, such as Figures 1 to 3 As shown, the system includes a base 1, a platform 2 on top of the base 1, an air pump 3 on the upper right side of the platform 2, which provides a stable gas input (such as air or nitrogen) to ensure that the internal pressure of the inflation membrane 4 quickly reaches the preset value. The inflation membrane 4 is placed on the upper left side of the platform 2. The air pump 3 and the inflation membrane 4 are connected. A high-frequency solenoid valve 5 is provided on the outer surface of the output pipe of the air pump 3. The high-frequency solenoid valve 5 switches the inflation and depressurization of the inflation membrane 4 at a frequency of 1-5Hz, so that the internal pressure fluctuates periodically within a set range (such as 300±50Pa). A fixing recess 6 is provided on both the front and rear sides of the base 1. The front fixing recess 6 contains a... A drive mechanism 7 is provided, with a slide plate 8 threadedly connected to its outer surface. A water pump 10 is fixedly installed on the left side of the slide plate 8, and a water tank 11 is fixedly installed on the upper end of the slide plate 8. The water pump 10 and the water tank 11 are connected. A water pipe 12 is connected to the lower end of the water tank 11. A nozzle 13 is fixedly installed on both the front and rear sides of the outer surface of the water pipe 12. A spray plate 14 is fixedly installed on the right end of the water tank 11, located above the inflatable membrane 4. The two nozzles 13 are located in front and behind the inflatable membrane 4. A humidity sensor 15 is fixedly installed on both the front and rear sides of the right end of the slide plate 8. An air pump 3 is connected to the inflatable membrane 4 and is used to inflate the inflatable membrane 4 to form a test chamber. A high-frequency solenoid valve 5 is provided on the outer surface of the output pipe of the air pump 3 to control the switching of the air pump 3 and the inflation rate. The humidity sensor 15 is used to monitor the humidity changes inside and outside the inflatable membrane 4 in real time to determine the waterproof performance of the inflatable membrane 4.

[0021] like Figure 3As shown, the drive mechanism 7 includes a servo motor 71, and a lead screw 72 is fixedly installed at the output end of the servo motor 71. The lead screw 72 is movable inside the front fixed concave plate 6. The servo motor 71 is fixedly connected to the right end of the fixed concave plate 6. The slide plate 8 is threadedly connected to the outer surface of the lead screw 72. The servo motor 71 is fixedly connected to the right end of the fixed concave plate 6, driving the slide plate 8 to move left and right on the lead screw 72. The drive mechanism 7 drives the slide plate 8 to move left and right, thereby driving the nozzle 13 and the spray plate 14 to perform dynamic spraying tests on the air-filled membrane 4.

[0022] like Figure 1 As shown, the bottom and front and rear sides of the platform 2 are provided with several water outlet holes 16 to drain the water generated during the test.

[0023] A water collection box 17 is placed on the upper end of the base 1. A filter screen 18 is fixedly installed in the inner cavity of the water collection box 17. The water pump 10's water pump pipe 12 is connected to the water collection box 17 to pump the water in the water collection box 17 back to the water tank 11 for recycling.

[0024] Working principle: During use, the inflatable membrane 4 is first placed on the platform 2, and air is pumped into the membrane 4 by the air pump 3 to form a test chamber. Then, the servo motor 71 is started, and the slide plate 8 is driven to move left and right through the lead screw 72. The water pump 10 draws water from the bottom of the water collection box 17 and the water in the drive water tank 11, and sprays the inflatable membrane 4 through the nozzle 13 and the spray plate 14 to perform dynamic spray test. During the test, the humidity sensor 15 monitors the humidity changes inside and outside the inflatable membrane 4 in real time and transmits the data to the control system for analysis and processing. The nozzle 13 and spray plate 14 are located at the front, rear, and top of the inflatable membrane 4, respectively. As the nozzle 13 and spray plate 14 move back and forth with the slide plate 8, they can dynamically spray the inflatable membrane 4 from multiple angles. At the same time, the water outlet 16 on the platform 2 discharges the water generated during the test into the water collection box 17. After being filtered by the filter screen 18, the water is pumped back to the water tank 11 by the water pump 10 for recycling. The inflation and depressurization of the inflatable membrane 4 are switched at a frequency of 1-5Hz by a high-frequency solenoid valve 5, so that the internal pressure fluctuates periodically within a certain range, simulating the repeated stretching of the membrane seams by wind load or mechanical vibration, and simulating real working conditions. By using the dynamic spraying mechanism of the nozzle 13 and spray plate 14 in conjunction with the high-frequency pressure fluctuation of the high-frequency solenoid valve 5 to simulate the real environment, the waterproof performance test of the inflatable membrane 4 under dynamic water flow impact is realized. The dynamic water pressure simulation and high-frequency pressure fluctuation significantly improve the accuracy of the waterproof test of the inflatable membrane 4.

[0025] 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. An inflatable membrane waterproof testing device, comprising a base (1), characterized in that: A platform (2) is provided above the base (1). An air pump (3) is provided on the upper right side of the platform (2). An air membrane (4) is placed on the upper left side of the platform (2). The air pump (3) and the air membrane (4) are connected. A high-frequency solenoid valve (5) is provided on the outer surface of the output pipe of the air pump (3). A fixed concave plate (6) is provided on both the front and rear sides of the base (1). A drive mechanism (7) is provided in the front fixed concave plate (6). A sliding plate (8) is threadedly connected to the outer surface of the drive mechanism (7). A drawer is fixedly installed on the left side of the sliding plate (8). A water pump (10) is provided. A water tank (11) is fixedly installed on the upper end of the slide plate (8). The water pump (10) and the water tank (11) are connected. A water pipe (12) is connected to the lower end of the water tank (11). A nozzle (13) is fixedly installed on both the front and rear sides of the outer surface of the water pipe (12). A spray plate (14) is fixedly installed on the right end of the water tank (11). The spray plate (14) is located above the air-filled membrane (4). The two nozzles (13) are located in front and behind the air-filled membrane (4). A humidity sensor (15) is fixedly installed on both the front and rear sides of the right end of the slide plate (8).

2. The inflatable membrane waterproof testing device according to claim 1, characterized in that: The drive mechanism (7) includes a servo motor (71), and a lead screw (72) is fixedly installed at the output end of the servo motor (71). The lead screw (72) is movable inside the front fixed concave plate (6). The servo motor (71) is fixedly connected to the right end of the fixed concave plate (6). The slide plate (8) is threadedly connected to the outer surface of the lead screw (72).

3. The inflatable membrane waterproof testing device according to claim 1, characterized in that: The platform (2) has several water outlet holes (16) at its bottom and on both the front and rear sides.

4. The inflatable membrane waterproof testing device according to claim 1, characterized in that: A water collection box (17) is placed on the upper end of the base (1), and a filter screen (18) is fixedly installed in the inner cavity of the water collection box (17). The water pump (10)'s pumping pipe (12) is connected to the water collection box (17).

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