An air tightness checking apparatus

Abstract

The utility model discloses a kind of air-tightness inspection equipment, which can be used to detect waterproof cabinet, electromagnetic shielding equipment and other products requiring sealing performance. The equipment includes a sealed cavity, various models of air compression bags, an optical detection module and a controller system. The sealed cavity is used to place the air-tightness equipment to be tested. Combined with the controller system and various models of air compression bags, the air-tightness performance of the equipment can be detected by simulating pressure changes through pressure relief operations. The optical detection module can accurately locate the leakage area of the equipment by detecting functions in the equipment through multiple light-emitting diodes distributed inside the cavity. The controller system supports remote control operations and timing triggering and can automatically generate a detection report. The utility model has the characteristics of high detection accuracy, convenient operation, low cost and less maintenance requirements, and is widely applicable to the detection needs of various sealing equipment.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, and in particular to equipment airtightness testing technology. Background Technology

[0002] In existing technologies, equipment airtightness testing primarily employs traditional pressure testing and water spray tests. While these methods offer some detection effectiveness, they present numerous challenges in practical applications. Both methods fail to consider the electrostatic shielding requirements of some products. Traditional pressure testing methods often necessitate disassembly of the equipment, particularly when testing vent valves. Inaccurate pressure readings can arise due to inconsistent interfaces or equipment aging, and the possibility of valve-related issues cannot be completely ruled out. Furthermore, while water spray tests provide a direct assessment of the equipment's sealing performance, they require extensive and repeated verification, resulting in low testing efficiency. This is especially problematic when pinpointing specific leaks, often necessitating multiple attempts and increasing operational complexity.

[0003] Furthermore, traditional testing equipment often uses high-pressure gas or alternating current as a power source, posing significant safety hazards during operation, such as electric shock or dangers caused by equipment malfunction. At the same time, such equipment is typically complex in structure and expensive, especially for small and medium-sized enterprises or individual users, resulting in high purchase and maintenance costs and a significant economic burden. Its complex design also necessitates operator training. Therefore, there is an urgent need for a simple, easy-to-operate, low-maintenance, highly safe, and reliable airtightness inspection device to overcome the shortcomings of existing technologies. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an airtightness inspection device with advantages such as simple structure, convenient operation, low maintenance requirements, high safety, and dual detection technology, combining airtightness detection with optical detection to improve detection accuracy and reliability. It is widely applicable to the testing needs of various sealing devices. Simultaneously, it solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An airtightness inspection device includes a sealed cavity 5, various types of compressed air bags 3, an optical inspection module 6, and a controller 2. The sealed cavity 5 has sealing and load-bearing capabilities, and houses the airtightness device 4 to be tested, various types of compressed air bags, and an optical detection module. The controller is located inside the sealed cavity and is connected to the air compression bag. It is used to open the air compression bag and release air. A system combining multiple models of air compression bags 3 with a controller 2 simulates changes in the airtightness of the equipment through depressurization operations to detect the airtightness performance of the equipment; The optical detection module 6 is used to collect light leakage points of the airtight device 4 under test.

[0006] Furthermore, the controller consists of a microcontroller, a relay module, and a timing module, supporting remote control operation and timed trigger mode, allowing users to complete the detection through simple operation.

[0007] Furthermore, the system of multiple models of air compression bags 3 and controller 2 can adjust the pressure range according to the needs of different equipment, support automatic pressure relief and pressure monitoring, and display the pressure on the LCD screen 7.

[0008] Furthermore, the light-emitting diodes 1 in the optical detection module 6 are distributed in key positions inside the sealed cavity 5 to improve the accuracy of leakage location.

[0009] Furthermore, the controller 2 system adopts a low-voltage DC power design with a voltage range of 12V to 24V.

[0010] Furthermore, the system can be remotely triggered or timed triggered, and the result can be displayed on the LCD screen 7 and triggered in a timed manner.

[0011] The beneficial effects of adopting the above-mentioned optimized technical solution are as follows: 1. This airtightness testing equipment can be used to test products requiring sealing performance, such as waterproof enclosures and electromagnetic shielding equipment. The equipment includes a sealed chamber, various types of compressed air bags, an optical detection module, and a control system. The sealed chamber holds the airtight equipment to be tested. Combined with the controller system and various types of compressed air bags, pressure changes are simulated through depressurization to test the equipment's airtightness. The optical detection module uses multiple light-emitting diodes distributed inside the chamber. When placed inside the equipment, the detection function accurately locates the leakage area. The control system supports remote control operation and timed triggering, allowing users to perform efficient testing with simple operation.

[0012] 2. The dual-detection technology combines airtightness inspection with optical inspection, significantly improving both accuracy and efficiency. The equipment operates with a high degree of automation, supporting remote control, timed triggering, and automatic report generation. Its high-safety design utilizes 12V or 24V low-voltage DC power, effectively avoiding the risk of electric shock, while an overvoltage protection mechanism further ensures operational safety. Furthermore, the equipment's compact and convenient design makes it widely applicable to various products requiring sealing performance testing. Attached Figure Description

[0013] Figure 1 is a diagram of an airtightness inspection device according to this utility model.

[0014] In the diagram: 1. Light-emitting diode; 2. Controller; 3. Various types of compressed air bags; 4. Air tightness test device; 5. Sealed cavity; 6. Optical detection module; 7. LCD screen. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings.

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1 As shown, this utility model provides a compact, high-precision, and easy-to-operate equipment for airtightness inspection. The design focuses on integrating airtightness testing and optical detection methods. An automated control system coordinates the operation of each module, simplifying the operation process and improving testing efficiency and accuracy. The equipment consists of a sealed chamber 5, an optical detection module 6, various types of compressed air bags 3, and a controller system 2. The sealed chamber 5 is made of high-strength material and has an internal detection interface to ensure pressure resistance and sealing. The various types of compressed air bags 3 and the controller system 2 can automatically adjust the pressure and detect the airtightness of the equipment through a pressure relief mode. The optical detection module 6 is equipped with multiple light-emitting diodes to locate leak points in the airtight equipment under test. The controller system 2 allows users to set trigger modes through an interface, choosing between remote control operation or timed start-up.

[0018] like Figure 1 As shown, to better understand the equipment's operation process, the specific testing steps are detailed below. First, open the movable door of the sealed chamber 5 and place the airtightness device 4 to be tested in the central area of ​​the chamber. Ensure a certain distance is maintained between the device and the chamber wall to allow the optical detection module 6, the various types of compressed air bags 3, and the controller 2 system to operate normally. Then, close and lock the chamber door to ensure optimal sealing inside the chamber. Next, the controller 2 system activates the various types of compressed air bags 3. Activating the various types of compressed air bags 3 via the controller 2's control panel results in the bags being fully inflated. Set the pressure range according to the testing requirements. The various types of compressed air bags 3 begin depressurizing the chamber, simulating the airtightness performance of the equipment in actual use. The pressure sensors in the system will monitor the pressure changes inside the chamber in real time, generating a pressure curve to assist the user in judging the equipment's sealing performance.

[0019] likeFigure 1 As shown, after completing the airtightness test, the optical detection module 6 can be activated as an auxiliary test. LED 1 lights up sequentially to perform a comprehensive scan of the exterior of the device under test. If light leakage is found inside the device, the optical module will locate the leakage point using a light intensity sensor and upload its coordinates and light intensity data to the control system. Controller 2 automatically records data throughout the entire testing process, including pressure changes, leakage location, and light intensity changes. Users can evaluate the airtightness performance of the tested device based on the test report and perform targeted repairs on problematic components.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An airtightness inspection device, comprising a sealed cavity (5), various types of compressed air bags (3), an optical inspection module (6), and a controller (2), characterized in that: The sealed cavity (5) has sealing and load-bearing capacity, and the airtightness device to be tested (4), various types of compressed air bags and optical detection modules are placed inside it; The controller is located inside the sealed cavity and is connected to the air compression bag. It is used to open the air compression bag and release air. Various models of air compression bags (3) are combined with a controller (2) system to simulate changes in the airtightness of the equipment through depressurization operations and to detect the airtightness performance of the equipment; The optical detection module (6) is used to collect the light leakage points of the airtight device (4) to be tested.

2. The airtightness inspection device according to claim 1, characterized in that, The controller consists of a microcontroller, a relay module, and a timing module. It supports remote control operation and timed trigger mode, and users can complete the detection through simple operation.

3. The airtightness inspection device according to claim 1, characterized in that, The various types of air compression bags (3) and controller (2) system can adjust the pressure range according to different equipment requirements, support automatic pressure relief and pressure monitoring, and display on the LCD screen (7).

4. The airtightness inspection device according to claim 1, characterized in that, The light-emitting diodes (1) in the optical detection module (6) are distributed in key positions inside the sealed cavity (5) to improve the accuracy of leakage location.

5. The airtightness inspection device according to claim 1, characterized in that, The controller (2) system adopts a low-voltage DC power design with a voltage range of 12V to 24V.

6. The airtightness inspection device according to claim 1, characterized in that, The system can be triggered by remote control or by timed triggering, and the system can be displayed on the LCD screen (7) and the timed triggering method can be adopted.

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