A device for testing the durability of a gas nozzle quick coupling

Abstract

The utility model discloses a kind of air cock quick-connection durability testing device, including test table, first Y-axis electric sliding table, positioning fixture, second Y-axis electric sliding table, pneumatic simulation finger, pressure gauge, manual pressure regulating valve and electric control system, first Y-axis electric sliding table and second Y-axis electric sliding table are located on test table;Positioning fixture is used to fixedly connect air cock quick-connection test sample male head, be located on the slider of first Y-axis electric sliding table;Pneumatic simulation finger is used to clamp air cock quick-connection test sample female head, be located on the slider of second Y-axis electric sliding table;Pressure gauge and manual pressure regulating valve are located on pneumatic simulation finger, for adjusting the action of pneumatic simulation finger;Electric control system is electrically connected with first Y-axis electric sliding table and second Y-axis electric sliding table.The utility model greatly improves test efficiency, without professional technical personnel operation, test data is accurate and reliable.Simultaneously adaptability is strong, manufacturing cost and maintenance cost are very low, suitable for various production enterprises and laboratory use.

Description

Technical Field

[0001] This utility model relates to the technical field of durability testing equipment for quick-connect fittings for air nozzles. Background Technology

[0002] Quick-connect valves are frequently pressed and opened in practical use, making durability and connection strength critical quality indicators. If breakage, deformation, or detachment occurs during use, it can lead to economic losses for consumers and even safety risks. Therefore, it is necessary to conduct quality testing on quick-connect valves entering the market to determine product quality within their service life and ensure safe use.

[0003] The existing method for testing the durability of quick-connect valves is mainly manual inspection, which has obvious drawbacks: manual testing is inefficient, has poor repeatability, and the test results are highly subjective. Utility Model Content

[0004] The purpose of this invention is to provide a durability testing device for quick-connect air valves in response to market demand, so as to effectively evaluate the quality and safety performance of quick-connect air valve products.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A quick-connect fitting durability testing device includes a test platform, a first Y-axis electric slide, a positioning fixture, a second Y-axis electric slide, a pneumatic simulated finger, a pressure gauge, a manual pressure regulating valve, and an electrical control system. The first and second Y-axis electric slides are mounted on the test platform. The positioning fixture, used to fix the male end of the quick-connect fitting sample, is mounted on the slider of the first Y-axis electric slide. The pneumatic simulated finger, used to hold the female end of the quick-connect fitting sample, is mounted on the slider of the second Y-axis electric slide. The pressure gauge and the manual pressure regulating valve are mounted on the pneumatic simulated finger and used to adjust the movement of the pneumatic simulated finger. The electrical control system is electrically connected to the first and second Y-axis electric slides.

[0006] Furthermore, the first and second Y-axis electric slides are electric precision lead screw slides with adjustable lateral spacing. Even further, the first Y-axis electric slide has a moving speed adjustable range of 5-50 mm / s, used to drive the positioning fixture to press the male sample head into the female sample head.

[0007] Furthermore, the pneumatic simulated finger is a pneumatically adjustable elastic clamp with an adjustable opening and closing range of 5-30mm, which can be adapted to quick-connect products with air nozzles of different sizes with diameters of 5-25mm; the preferred opening and closing speed is 5-50mm / s.

[0008] Furthermore, the pneumatic simulated finger includes an opening and closing cylinder, which is connected in series with a pressure gauge and a manual pressure regulating valve through an air pipeline to form a closed air circuit; the manual pressure regulating valve is connected in series between the air source and the opening and closing cylinder to regulate the air pressure input to the opening and closing cylinder; the pressure gauge is connected in parallel on the air pipeline between the manual pressure regulating valve and the opening and closing cylinder to monitor the actual working pressure entering the opening and closing cylinder in real time.

[0009] Furthermore, the manual pressure regulating valve has a pressure adjustment range of 0.1-0.5MPa, which is used to accurately match the pressure scenarios of daily use of the quick-connect air nozzle.

[0010] The beneficial effects of this utility model are: The quick-connect durability testing device for air nozzles provided by this utility model greatly improves testing efficiency through semi-automatic control, and can be operated without professional technicians. It ensures the repeatability and reproducibility of the testing process, avoids the subjective errors of manual testing, and provides accurate and reliable test data.

[0011] Meanwhile, the simulated finger of this invention is adjustable in opening and closing, adaptable to quick-connect products with air nozzles of different sizes, offering strong adaptability and convenient operation. The entire device has a simple structure, small size, and minimal footprint, resulting in very low manufacturing and maintenance costs, making it suitable for use in various production enterprises and laboratories.

[0012] The technical solution of this utility model will be illustrated below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the quick-connect durability testing device for air nozzles provided in this embodiment of the utility model.

[0014] Explanation of reference numerals in the attached figures: 1 Test table, 2 First Y-axis motorized slide, 3 Positioning fixture, 4 Second Y-axis motorized slide 5. Pneumatic simulated finger, 501 opening and closing cylinder, 6. Pressure gauge, 7. Manual pressure regulating valve 8. Electrical control system; 9. Male sample connector; 10. Female sample connector Detailed Implementation

[0015] The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosed technical solutions. It should also be noted that, for ease of description, the accompanying drawings show only the parts relevant to the technical solutions of this application, not the entire structure.

[0016] Before discussing the exemplary embodiments in more detail, it should be mentioned that the structure of the device components and / or modules mentioned in the embodiments, unless otherwise described in detail, is something that can be understood by those skilled in the art based on existing public technologies or is a commercially available product.

[0017] refer to Figure 1 The quick-connect durability testing device for air nozzles provided in this embodiment includes a test platform 1, a first Y-axis electric slide 2, a positioning clamp 3, a second Y-axis electric slide 4, a pneumatic simulated finger 5, a pressure gauge 6, a manual pressure regulating valve 7, and an electrical control system 8. The first Y-axis electric slide 2 and the second Y-axis electric slide 4 are mounted on the test platform 1. The positioning clamp 3 is used to fix and connect the male end of the quick-connect air nozzle sample and is mounted on the slider of the first Y-axis electric slide 2. The pneumatic simulated finger 5 is used to clamp the female end of the quick-connect air nozzle sample and is mounted on the slider of the second Y-axis electric slide 4. The pressure gauge 6 and the manual pressure regulating valve 7 are mounted on the pneumatic simulated finger 5 and are used to adjust the movement of the pneumatic simulated finger 5. The electrical control system 8 is electrically connected to the first Y-axis electric slide 2 and the second Y-axis electric slide 4.

[0018] The first Y-axis electric slide 2 and the second Y-axis electric slide 4 are preferably electric precision lead screw slides, and the lateral distance between them is adjustable. A further preferred embodiment is that the moving speed of the first Y-axis electric slide 2 is adjustable from 5-50 mm / s, used to drive the positioning fixture 3 to press the male sample head 9 into the female sample head 10.

[0019] The pneumatic simulated finger 5 is a pneumatically adjustable elastic clamp with an adjustable opening and closing degree ranging from 5 to 30 mm, which can be adapted to quick-connect products with air nozzles of different sizes with diameters of 5 to 25 mm; the preferred opening and closing speed is 5 to 50 mm / s.

[0020] The pneumatic simulated finger 5 includes an opening / closing cylinder 501. The opening / closing cylinder 501, pressure gauge 6, and manual pressure regulating valve 7 are connected in series via an air pipeline to form a closed air circuit. The manual pressure regulating valve 7 is connected in series between the air source and the opening / closing cylinder 501 to regulate the air pressure input to the opening / closing cylinder 501. The pressure gauge 6 is connected in parallel on the air pipeline between the manual pressure regulating valve 7 and the opening / closing cylinder 501 to monitor the actual working pressure entering the opening / closing cylinder 501 in real time. Furthermore, the manual pressure regulating valve 7 has a pressure adjustment range of 0.1-0.5 MPa to precisely match the pressure scenarios of daily use of quick-connect air nozzles.

[0021] The fatigue performance of quick-connect valves is a simulated use test that is more rigorous than actual application conditions. It involves opening and closing the valve at a specific speed within a specified range to assess the durability and sealing performance of the quick-connect valve body and the connection. The operation procedure for the quick-connect valve durability testing device using this patent is as follows: 1. Fix the male end of the quick-connect air nozzle sample in the positioning fixture, and align the female end with the male end; 2. Set the opening and closing speed, pressing speed, and number of tests through the display screen of the electronic control system (i.e., control the movement of the first Y-axis electric slide and the second Y-axis electric slide). 3. Turn on the power switch to start the equipment; 4. The first Y-axis electric slide table drives the positioning fixture to rise, pressing the quick-connect sample male end into the female end. After 3 seconds of insertion confirmation, the first Y-axis electric slide table drives the male end to reset. 5. The clamp simulating a finger holds the opening and closing bayonet of the quick-connect sample under the drive of the opening and closing cylinder. The second Y-axis electric slide drives the quick-connect female head to descend until the female head pops out. After 3 seconds, the opening and closing cylinder drives the clamp simulating a finger to open, and the second Y-axis electric slide resets. 6. Repeat the above steps until the set number of tests are completed. If the quick-connect female and male connectors do not deform, crack, or fall off, the test is passed; otherwise, the test fails.

[0022] The above experimental examples test the strength and durability fatigue of the quick-connect valve. The number of tests can be set from 1 to 9999, and different levels of testing requirements can be met by changing the opening and closing pressure and the number of cycles.

[0023] Although this device is a semi-automatic testing device, its up-and-down speed, pressing time, opening and closing time, and opening and closing gripping force are all adjustable, making it suitable for testing products of various sizes. It is low in cost and has reliable testing accuracy, meeting the quality inspection needs of products on the market.

Claims

1. A device for testing the durability of quick-connect air nozzles, characterized in that: The test platform includes a test bench (1), a first Y-axis electric slide (2), a positioning fixture (3), a second Y-axis electric slide (4), a pneumatic simulated finger (5), a pressure gauge (6), a manual pressure regulating valve (7), and an electrical control system (8). The first Y-axis electric slide (2) and the second Y-axis electric slide (4) are mounted on the test bench (1). The positioning fixture (3) is used to fix and connect the male end of the quick-connect sample of the air nozzle and is mounted on the slider of the first Y-axis electric slide (2). The pneumatic simulated finger (5) is used to hold the female end of the quick-connect sample of the air nozzle and is mounted on the slider of the second Y-axis electric slide (4). The pressure gauge (6) and the manual pressure regulating valve (7) are mounted on the pneumatic simulated finger (5) and are used to adjust the movement of the pneumatic simulated finger (5). The electrical control system (8) is electrically connected to the first Y-axis electric slide (2) and the second Y-axis electric slide (4).

2. The quick-connect durability testing device for air nozzles as described in claim 1, characterized in that: The first Y-axis electric slide (2) and the second Y-axis electric slide (4) are both electric precision lead screw slides.

3. The quick-connect durability testing device for air nozzles as described in claim 1, characterized in that: The lateral spacing between the first Y-axis electric slide (2) and the second Y-axis electric slide (4) is adjustable.

4. The quick-connect durability testing device for air nozzles as described in claim 1, characterized in that: The first Y-axis electric slide (2) has a moving speed adjustment range of 5-50 mm / s, which is used to drive the positioning fixture (3) to press the male head of the sample into the female head of the sample.

5. The quick-connect durability testing device for air nozzles as described in claim 1, characterized in that: The pneumatic simulated finger (5) is a pneumatically adjustable elastic clamp with an opening and closing range of 5-30mm.

6. The quick-connect durability testing device for air nozzles as described in claim 1, characterized in that: The pneumatic simulated finger (5) has an opening and closing speed of 5-50 mm / s.

7. The quick-connect durability testing device for air nozzles as described in claim 1, characterized in that: The manual pressure regulating valve (7) has a pressure regulating range of 0.1-0.5MPa.

8. The quick-connect durability testing device for air nozzles as described in any one of claims 1-7, characterized in that: The pneumatic simulated finger (5) includes an opening and closing cylinder (501). The opening and closing cylinder (501), pressure gauge (6), and manual pressure regulating valve (7) are connected in series through an air pipeline to form a closed air circuit. The manual pressure regulating valve (7) is connected in series between the air source and the opening and closing cylinder (501) to regulate the air pressure input to the opening and closing cylinder (501). The pressure gauge (6) is connected in parallel to the air pipeline between the manual pressure regulating valve (7) and the opening and closing cylinder (501) to monitor the actual working pressure entering the opening and closing cylinder (501) in real time.

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