Quick-connect test connector airtightness testing device

Abstract

This utility model relates to a quick-connect test connector airtightness testing device, including a water tank, a mounting base plate, a lifting cylinder, and several sets of sealing components. The sealing components are mounted on the mounting base plate. Each sealing component includes a positioning seat and a sealing venting cylinder. The positioning seat has a positioning groove for placing the product to be tested. The sealing venting cylinder is located directly in front of the connector end. The end of the cylinder rod of the sealing venting cylinder is provided with a first elastic seal. The cylinder rod of the sealing venting cylinder is provided with a venting connector for connecting a vent pipe. The first elastic seal has a venting channel communicating with the venting connector. The diameter of the venting channel is smaller than the opening diameter of the connector end. The water tank contains water. The lifting cylinder is connected to the mounting base plate. In this utility model, the sealing venting and vertical movement of the product are automated using a cylinder, reducing manual intervention, simplifying operation, ensuring the sealing effect of the connector end, and thus ensuring the accuracy of the test.

Description

Technical Field

[0001] This utility model relates to a device for testing the airtightness of quick-connect test connectors, belonging to the field of connector testing technology. Background Technology

[0002] Quick-connect test connectors are rapid connection devices designed for testing, measurement, or inspection needs. They are commonly used for sealing tests, pressure tests, or leak detection in pneumatic, hydraulic, automotive braking systems, and refrigeration piping systems. The airtightness of quick-connect test connectors directly affects the accuracy of the test and the safety and reliability of the pipeline under test. Therefore, quick-connect test connectors must undergo airtightness testing after production to ensure that the products meet the usage standards. Traditional quick-connect test connector testing methods involve manually sealing the connector and then judging the airtightness by observing changes in pressure gauge readings or manually checking for leaks. However, manual sealing is cumbersome and has poor sealing effect. During testing, the limited accuracy of ordinary pressure gauge readings makes it difficult to detect minute leaks, and manual observation is also difficult to detect small leaks, resulting in low test accuracy. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a simple-to-operate quick-connect test connector airtightness testing device.

[0004] To achieve this objective, the technical solution adopted by this utility model is:

[0005] A quick-connect test connector airtightness testing device includes a water tank, a mounting base plate, a lifting cylinder, and several sets of sealing components. The sealing components are mounted on the mounting base plate. Each sealing component includes a positioning seat and a sealing venting cylinder. The positioning seat has a positioning groove for placing the product to be tested. The product includes a test end and a connector end, both of which protrude from the positioning groove. The sealing venting cylinder is located directly in front of the connector end. The end of the cylinder rod of the sealing venting cylinder is provided with a first elastic sealing element for sealing the connector end. The cylinder rod of the sealing venting cylinder is provided with a venting connector for connecting a vent pipe. The first elastic sealing element has a venting channel communicating with the venting connector. The diameter of the venting channel is smaller than the opening diameter of the connector end. The water tank contains water, and the lifting cylinder is connected to the mounting base plate.

[0006] As a further optimization of the above technical solution, it also includes a movable plate, a fixed plate, a connecting plate, two guide pillars, and two guide sleeves. The fixed plate is fixed to the bottom surface of the bottom plate of the water tank. The lifting cylinder is fixed to the bottom of the fixed plate with the cylinder rod of the lifting cylinder facing vertically downward. The movable plate is fixed on the cylinder rod of the lifting cylinder. The connecting plate is fixed to the bottom of the mounting base plate. The two guide sleeves are fixed to the top surface of the bottom plate of the water tank. The tops of the two guide pillars are fixed to the connecting plate. The middle parts of the two guide pillars move sequentially through the guide sleeves, the bottom plate of the water tank, and the fixed plate. The bottoms of the two guide pillars are fixed to the movable plate. The cylinder rod of the lifting cylinder drives the movable plate to move up and down. The movable plate drives the connecting plate and the mounting base plate to move up and down synchronously through the guide pillars, so that the sealing assembly moves down into the water level below the water tank or moves up out of the water tank.

[0007] As a further optimization of the above technical solution: the guide sleeve has a through hole in the middle for the guide post to pass through. The guide sleeve also has a first sealing groove, a second sealing groove, a third sealing groove, and a backlash groove. The first sealing groove and the second sealing groove are both located at the bottom of the guide sleeve. The first sealing groove communicates with the guide sleeve hole. The second sealing groove is located outside the first sealing groove. A first waterproof sealing ring is provided in the first sealing groove. An O-ring is provided in the second sealing groove. The third sealing ring is located at the top of the guide sleeve. The backlash groove is located above the third sealing groove. The third sealing ring and the backlash groove communicate with the guide sleeve hole. A second waterproof sealing ring is provided in the third sealing groove. A retaining spring is provided in the backlash groove. The inner circumferential surfaces of the first waterproof sealing ring and the second waterproof sealing ring are in close contact with the outer circumferential surface of the guide post. The guide sleeve is fixed to the top surface of the bottom plate of the water tank by several screws. A waterproof sealing gasket is fitted on the screw.

[0008] As a further optimization of the above technical solution: the mounting base plate is provided with a total of five sets of sealing components, the sealing components also include a first mounting plate, the positioning seat and the sealing venting cylinder are both fixed on the first mounting plate, and the first mounting plate is fixed on the mounting base plate.

[0009] As a further optimization of the above technical solution, it also includes a fixing frame, in which the water tank and the lifting cylinder are both fixed, and the fixing frame has an inspection door on its side and a fixing side plate on its top.

[0010] As a further optimization of the above technical solution: a first hexagonal protrusion is provided between the test end and the connector end, the positioning groove extends laterally through the positioning seat, and the middle of both sides of the positioning groove is connected to a slot, the first hexagonal protrusion is located in the slot, and the side of the first hexagonal protrusion is in contact with the side of the slot.

[0011] As a further optimization of the above technical solution: the product has two connector ends, which are perpendicular to each other. The positioning groove on the positioning seat is approximately T-shaped. The test end and both connector ends are located in the positioning groove. The sealing assembly also includes a sealing cylinder. The sealing venting cylinder is located directly in front of one of the connector ends, and the sealing cylinder is located directly in front of the other connector end. The end of the cylinder rod of the sealing cylinder is provided with a second elastic seal. The extension of the cylinder rod of the sealing cylinder causes the second elastic seal to fit tightly against the connector end for sealing. The first elastic seal and the second elastic seal ensure that both connector ends in the product are sealed.

[0012] As a further optimization of the above technical solution: the sealing assembly further includes a second mounting plate, the sealing cylinder is fixed on the second mounting plate, and the second mounting plate is fixed on the mounting base plate.

[0013] As a further optimization of the above technical solution: the product has two connector ends, the product's test end is located between the two connector ends, the positioning groove on the positioning seat is approximately in the shape of a straight line, the end of the positioning groove is connected to a connector sealing groove, the connector sealing groove is provided with a sealing gasket, one of the product's connector ends is tightly sealed with the sealing gasket, the other connector end extends out of the positioning groove, the product's test end is set vertically upwards, and the sealing gasket and the first elastic seal ensure that both connector ends of the product are sealed.

[0014] As a further optimization of the above technical solution: the connector end of the product is a bamboo-shaped quick-connect connector, a second hexagonal protrusion is provided between the test end and the connector end, the positioning groove on the positioning seat is a positioning hole that penetrates the positioning seat, the test end of the product is located in the positioning hole, and the side of the second hexagonal protrusion is in contact with the side of the positioning seat.

[0015] Compared with existing technologies, the sealing and venting cylinder in this invention seals and vents the product's connector end. The lifting cylinder, via a moving plate, guide column, connecting plate, and mounting base plate, moves the sealing assembly and product below the water level in the tank. The airtightness of the product is determined by observing whether bubbles emerge from the test end in the water. The sealing, venting, and vertical movement of the product are all automated using cylinders, reducing manual intervention, simplifying operation, and ensuring the sealing effect at the connector end, thus guaranteeing the accuracy of the test. Simultaneously, the presence of bubbles makes the airtightness assessment more objective, facilitating observation and judgment, and improving the accuracy of the test. When there are two connector ends, a sealing gasket can be used, or the sealing cylinder can drive a second... Two elastic seals move to seal the other end of the connector; the first mounting plate modularizes the positioning seat and the sealing vent cylinder. The first mounting plate facilitates the installation and disassembly of multiple sealing components with the mounting base plate, as well as the adjustment of the installation position of the sealing components on the mounting base plate. When the number and shape of the connectors of the product under test change, the corresponding positioning seat is replaced on the first mounting plate, and then the first mounting plate or the first and second mounting plates are installed on the mounting base plate. The adjustment is quick and convenient, and the testing application range is wide; the first and second waterproof sealing rings provide a waterproof seal between the guide post and the guide sleeve, and the O-ring seals seal the installation between the guide sleeve and the water tank, preventing water in the water tank from leaking out through the opening on the water tank through which the guide post passes. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of this utility model.

[0017] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0018] Figure 3 This is a three-dimensional structural diagram of a portion of the structure in Embodiment 1 of this utility model.

[0019] Figure 4 This is a cross-sectional structural diagram of the guide sleeve in Embodiment 1 of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the sealing component in Embodiment 2 of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the sealing component in Embodiment 3 of this utility model.

[0022] Figure 7 This is a three-dimensional structural diagram of the sealing component in Embodiment 4 of this utility model. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1:

[0025] like Figure 1-4 As shown, the quick-connect test connector airtightness testing device includes a water tank 1, a mounting base plate 2, a lifting cylinder 3, and several sets of sealing components. Several sets of sealing components are mounted on the mounting base plate 2. Each set of sealing components includes a positioning seat 4 and a sealing venting cylinder 5. The positioning seat 4 has a positioning groove 41 for placing the product to be tested. The product includes a test end 14 and a connector end 15. Both the end of the test end 14 and the end of the connector end 15 protrude from the positioning groove 41. The sealing venting cylinder 5 is located directly in front of the connector end 15. The end of the cylinder rod of the sealing venting cylinder 5 is provided with a first elastic sealing element 7 for sealing the connector end 15. The cylinder rod of the sealing venting cylinder 5 is provided with a venting connector 51 for connecting a venting pipe. The first elastic sealing element 7 has a venting channel 71 communicating with the venting connector 51. The diameter of the venting channel 71 is smaller than the opening diameter of the connector end 15. The water tank 1 is filled with water, and the lifting cylinder 3 is connected to the mounting base plate 2.

[0026] After the product under test is placed in the positioning groove 41, the connector portion of the product under test extends out of the connector groove 42. The cylinder rod of the sealing and venting cylinder 5 extends, causing the elastic seal 7 to tightly seal against the connector end 15 of the product under test. The venting channel 71 is connected to the product under test, and the venting pipe vents air into the product under test through the venting connector 51 and the venting channel 71. The lifting cylinder 3 moves the mounting base plate 2 down until it is completely below the water level in the water tank 1. The air tightness of the product is determined by observing whether bubbles emerge from the test end 14 in the water. When bubbles emerge from the test end 14 in the water, it indicates that the product has poor air tightness; when no bubbles emerge from the test end 14 in the water, it indicates that the product has good air tightness.

[0027] The above technical solution also includes a movable plate 8, a fixed plate 9, a connecting plate 10, two guide pillars 11, and two guide sleeves 12. The fixed plate 9 is fixed to the bottom surface of the bottom plate of the water tank 1. The lifting cylinder 3 is fixed to the bottom of the fixed plate 9, with the cylinder rod 31 of the lifting cylinder 3 vertically downward. The movable plate 8 is fixed on the cylinder rod 31 of the lifting cylinder 3. The connecting plate 10 is fixed to the bottom of the mounting base plate 2. The two guide sleeves 12 are fixed to the top surface of the bottom plate of the water tank 1. The tops of the two guide pillars 11 are fixed to the connecting plate 10. The middle parts of the two guide pillars 11 move sequentially through the guide sleeves 12, the bottom plate of the water tank 1, and the fixed plate 9. The bottoms of the two guide pillars 11 are fixed to the movable plate 8. The cylinder rod 31 of the lifting cylinder 3 drives the movable plate 8 to move up and down. The movable plate 8 drives the connecting plate 10 and the mounting base plate 2 to move up and down synchronously through the guide pillars 11, so that the sealing assembly moves down into the water level below the water level of the water tank 1 or moves up out of the water in the water tank 1.

[0028] In the above technical solution: a guide sleeve hole 121 is formed through the middle of the guide sleeve 12 for the guide post 11 to pass through. The guide sleeve 12 is also provided with a first sealing groove, a second sealing groove, a third sealing groove, and a backlash groove. The first sealing groove and the second sealing groove are both located at the bottom of the guide sleeve 12. The first sealing groove communicates with the guide sleeve hole 121. The second sealing groove is located outside the first sealing groove. A first waterproof sealing ring 122 is provided in the first sealing groove, and an O-ring 125 is provided in the second sealing groove. The third sealing ring is located at the top of the guide sleeve 12, and the backlash groove is located above the third sealing groove. Both the third sealing ring and the backlash groove communicate with the guide sleeve hole 121. A second waterproof sealing ring 123 is provided in the third sealing groove, and a retaining spring 124 is provided in the backlash groove. The retaining spring 124 prevents the second waterproof sealing ring 123 from moving upward and detaching from the guide sleeve 12. The inner circumferential surfaces of the first waterproof sealing ring 122 and the second waterproof sealing ring 123 are in close contact with the outer circumferential surface of the guide post 11. The first waterproof sealing ring 122 and the second waterproof sealing ring 123 provide a waterproof seal between the guide post and the guide sleeve 12. The O-ring seals seal the installation between the guide sleeve 12 and the water tank 1, preventing water in the water tank 1 from leaking out through the opening on the water tank 1 through which the guide post 11 passes. The guide sleeve 12 is fixed to the top surface of the bottom plate of the water tank 1 by several screws 126, and a waterproof sealing gasket 127 is fitted on the screws 126.

[0029] In the above technical solution: the connector end 15 in this embodiment is a threaded connector, and a first hexagonal protrusion 16 is provided between the test end 14 and the connector end 15. The positioning groove 41 extends laterally through the positioning seat 4. The middle of both sides of the positioning groove 41 is connected to the slot 42. The first hexagonal protrusion 16 is located in the slot 42. The side of the first hexagonal protrusion 16 contacts the side of the slot 42 to prevent the product from moving back and forth in the positioning groove 41. This facilitates the first elastic seal 7 to squeeze the connector end 15 and seal the connector end 15, ensuring the reliability of the seal and the accuracy of the test.

[0030] In the above technical solution: the mounting base plate 2 is equipped with five sets of sealing components, enabling the airtightness testing of five products at once, resulting in high testing efficiency. The sealing components also include a first mounting plate 18, with the positioning seat 4 and sealing venting cylinder 5 all fixed to the first mounting plate 18, which is fixed to the mounting base plate 2. The first mounting plate 18 modularizes the positioning seat 4 and sealing venting cylinder 5, facilitating the installation and disassembly of multiple sealing components with the mounting base plate 2, and allowing for easy adjustment of the sealing component's installation position on the mounting base plate 2.

[0031] The above technical solution also includes a fixing frame 20, in which the water tank 1 and the lifting cylinder 3 are both fixed. The fixing frame 20 has an inspection door 21 on its side, which facilitates the inspection of the lifting cylinder 3. A fixing side plate 22 is also provided on the top of the fixing frame 20.

[0032] Example 2:

[0033] This embodiment is largely similar to the previous embodiment in terms of technical solution. The differences will be described in detail, while the contents that are the same in both will not be repeated here.

[0034] like Figure 5 As shown, in this embodiment, the connector end 15 of the product is a bamboo-joint type quick-connect connector, and a second hexagonal protrusion 17 is provided between the test end and the connector end 15. The positioning groove 41 on the positioning seat 4 is specifically a positioning hole that penetrates the positioning seat 4. The test end of the product is located in the positioning hole, and the side of the second hexagonal protrusion 17 contacts the side of the positioning seat 4 to prevent the product from moving back and forth in the positioning groove 41. This facilitates the first elastic seal 7 to squeeze the connector end 15 and seal the connector end 15, ensuring the reliability of the seal and the accuracy of the test.

[0035] Example 3:

[0036] This embodiment is largely similar to the previous embodiment in terms of technical solution. The differences will be described in detail, while the contents that are the same in both will not be repeated here.

[0037] like Figure 6 As shown, in this embodiment, the product has two connector ends 15, and the test end 14 is located between the two connector ends 15. The positioning groove 41 on the positioning seat 4 is approximately in the shape of a straight line. The end of the positioning groove 41 is connected to a connector sealing groove, and a sealing gasket 43 is provided in the connector sealing groove. One connector end 15 of the product is tightly sealed with the sealing gasket 43, while the other connector end 15 extends out of the positioning groove 41. The test end 14 of the product is set vertically upward. The sealing gasket 43 and the first elastic seal 7 ensure that both connector ends 15 in the product are sealed, ensuring the reliability of the seal and the accuracy of the test.

[0038] Example 4:

[0039] This embodiment is largely similar to the previous embodiment in terms of technical solution. The differences will be described in detail, while the contents that are the same in both will not be repeated here.

[0040] like Figure 7As shown, in this embodiment, the product has two connector ends 15, which are perpendicular to each other. The positioning groove 41 on the positioning seat 4 is approximately T-shaped, and the test end 14 and both connector ends 15 are located within the positioning groove 41. The sealing assembly also includes a sealing cylinder 6, with a sealing venting cylinder 5 located directly in front of one connector end 15 and the sealing cylinder 6 located directly in front of the other connector end 15. The end of the cylinder rod of the sealing cylinder 6 is provided with a second elastic seal 13, and the extension of the cylinder rod of the sealing cylinder 6 causes the second elastic seal 13 to fit tightly against the connector end 15 for sealing. The first elastic seal 7 and the second elastic seal 13 ensure that both connector ends 15 in the product are sealed, ensuring the reliability of the seal and the accuracy of the test.

[0041] In this embodiment, the sealing assembly further includes a second mounting plate 19, the sealing cylinder 6 is fixed on the second mounting plate 19, and the second mounting plate 19 is fixed on the mounting base plate 2. Figure 7 As shown, the first mounting plate 18 and the second mounting plate 19 are perpendicular to each other. The arrangement of the first mounting plate 18 and the second mounting plate 19 facilitates the quick installation of the sealing and venting cylinder 5, the positioning seat 4, and the sealing cylinder 6. When the number and shape of the connectors of the product under test change, the corresponding positioning seat 4 is replaced on the first mounting plate 18, and then the first mounting plate 18 or the first mounting plate 18 and the second mounting plate 19 are installed on the mounting base plate 2. The adjustment is quick and convenient, and the testing application range is wide.

[0042] In this invention, the sealing and venting cylinder 5 seals and vents the product's connector end. The lifting cylinder 3, via the moving plate 8, guide column 11, connecting plate 10, and mounting base plate 2, moves the sealing assembly and product down into the water tank 1 below the water level. The airtightness of the product is determined by observing whether bubbles emerge from the test end 14 in the water. The sealing, venting, and vertical movement of the product are all automated using cylinders, reducing manual intervention and ensuring the sealing effect of the connector end 15, thus guaranteeing the accuracy of the test. Simultaneously, the presence of bubbles makes the airtightness of the product more objective, facilitating observation and judgment, and improving the accuracy of the test. When there are two connector ends 15, a sealing gasket 43 can be used, or the second elastic sealing element 13 can be moved by the sealing cylinder 6 to the other connector. The end is sealed; the first mounting plate 18 modularizes the positioning seat 4 and the sealing vent cylinder 5. The first mounting plate 18 facilitates the installation and disassembly of multiple sets of sealing components with the mounting base plate 2, and facilitates the adjustment of the installation position of the sealing components on the mounting base plate 2. When the number and shape of the connectors of the product under test change, the corresponding positioning seat 4 is replaced on the first mounting plate 18, and then the first mounting plate 18 or the first mounting plate 18 and the second mounting plate 19 are installed on the mounting base plate 2. The adjustment is quick and convenient, and the testing application range is wide; the first waterproof sealing ring 122 and the second waterproof sealing ring 123 provide waterproof sealing between the guide post and the guide sleeve 12, and the O-ring seals the installation between the guide sleeve 12 and the water tank 1 to prevent water in the water tank 1 from leaking out through the opening on the water tank 1 through which the guide post 11 passes.

[0043] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should fall within the protection scope of this utility model.

Claims

1. A quick-connect test connector airtightness testing device, characterized in that... The system includes a water tank (1), a mounting base plate (2), a lifting cylinder (3), and several sets of sealing components. These sealing components are mounted on the mounting base plate (2). Each set of sealing components includes a positioning seat (4) and a sealing venting cylinder (5). The positioning seat (4) has a positioning groove (41) for placing the product to be tested. The product includes a test end (14) and a connector end (15). The ends of both the test end (14) and the connector end (15) protrude from the positioning groove (41). The sealing venting cylinder (5) is located at the connector end (15). Directly in front of the sealing vent cylinder (5), the end of the cylinder rod of the sealing vent cylinder (5) is provided with a first elastic sealing element (7) to seal the connector end (15). The cylinder rod of the sealing vent cylinder (5) is provided with a vent connector (51) for connecting the vent pipe. The first elastic sealing element (7) is provided with a vent channel (71) communicating with the vent connector (51). The diameter of the vent channel (71) is smaller than the opening diameter of the connector end (15). The water tank (1) is filled with water. The lifting cylinder (3) is connected to the mounting base plate (2).

2. The quick-connect test connector airtightness testing device according to claim 1, characterized in that... It also includes a movable plate (8), a fixed plate (9), a connecting plate (10), two guide pillars (11), and two guide sleeves (12). The fixed plate (9) is fixed to the bottom surface of the bottom plate of the water tank (1). The lifting cylinder (3) is fixed to the bottom of the fixed plate (9) with the cylinder rod (31) of the lifting cylinder (3) facing vertically downward. The movable plate (8) is fixed on the cylinder rod (31) of the lifting cylinder (3). The connecting plate (10) is fixed to the bottom of the mounting base plate (2). The two guide sleeves (12) are fixed to the top surface of the bottom plate of the water tank (1). The top of the two guide pillars (11) is fixed to the bottom surface of the water tank (1). The part is fixed on the connecting plate (10). The middle parts of the two guide pillars (11) are sequentially moved through the guide sleeve (12), the bottom plate of the water tank (1) and the fixing plate (9). The bottom of the two guide pillars (11) is fixed on the moving plate (8). The cylinder rod (31) of the lifting cylinder (3) drives the moving plate (8) to move up and down. The moving plate (8) drives the connecting plate (10) and the mounting base plate (2) to move up and down synchronously through the guide pillars (11), so that the sealing assembly moves down into the water level below the water tank (1) or moves up out of the water in the water tank (1).

3. The quick-connect test connector airtightness testing device according to claim 2, characterized in that... The guide sleeve (12) has a guide sleeve hole (121) through its middle for the guide post (11) to pass through. The guide sleeve (12) also has a first sealing groove, a second sealing groove, a third sealing groove, and a backstop groove. The first sealing groove and the second sealing groove are both located at the bottom of the guide sleeve (12). The first sealing groove communicates with the guide sleeve hole (121), and the second sealing groove is located outside the first sealing groove. A first waterproof sealing ring (122) is provided in the first sealing groove, and an O-ring (125) is provided in the second sealing groove. The third sealing ring is located at the bottom of the guide sleeve (12). 2) The top of the anti-reverse groove is located above the third sealing groove. The third sealing ring and the anti-reverse groove are both connected to the guide sleeve hole (121). The third sealing groove is provided with a second waterproof sealing ring (123). The anti-reverse groove is provided with a snap ring (124). The inner circumferential surfaces of the first waterproof sealing ring (122) and the second waterproof sealing ring (123) are in close contact with the outer circumferential surface of the guide post (11). The guide sleeve (12) is fixed to the top surface of the bottom plate of the water tank (1) by several screws (126). A waterproof sealing gasket (127) is fitted on the screws (126).

4. The quick-connect test connector airtightness testing device according to claim 1, characterized in that... The mounting base plate (2) is provided with a total of five sets of sealing components. The sealing components also include a first mounting plate (18). The positioning seat (4) and the sealing venting cylinder (5) are both fixed on the first mounting plate (18). The first mounting plate (18) is fixed on the mounting base plate (2).

5. The quick-connect test connector airtightness testing device according to claim 1, characterized in that... It also includes a fixing frame (20), in which the water tank (1) and the lifting cylinder (3) are fixed. The fixing frame (20) has an inspection door (21) on its side and a fixing side plate (22) on its top.

6. The quick-connect test connector airtightness testing device according to any one of claims 1-5, characterized in that... A first hexagonal protrusion (16) is provided between the test end (14) and the connector end (15). The positioning groove (41) passes through the positioning seat (4) laterally. The middle of both sides of the positioning groove (41) is connected to a slot (42). The first hexagonal protrusion (16) is located in the slot (42). The side of the first hexagonal protrusion (16) is in contact with the side of the slot (42).

7. The quick-connect test connector airtightness testing device according to any one of claims 1-5, characterized in that... The product has two connector ends (15), which are perpendicular to each other. The positioning groove (41) on the positioning seat (4) is approximately T-shaped. The test end (14) and the two connector ends (15) are located in the positioning groove (41). The sealing assembly also includes a sealing cylinder (6). The sealing venting cylinder (5) is located in front of one of the connector ends (15), and the sealing cylinder (6) is located in front of the other connector end (15). The end of the cylinder rod of the sealing cylinder (6) is provided with a second elastic seal (13). The cylinder rod of the sealing cylinder (6) extends to make the second elastic seal (13) tightly seal the connector end (15). The first elastic seal (7) and the second elastic seal (13) seal both connector ends (15) in the product. The sealing assembly also includes a second mounting plate (19), the sealing cylinder (6) is fixed on the second mounting plate (19), and the second mounting plate (19) is fixed on the mounting base plate (2).

8. The quick-connect test connector airtightness testing device according to any one of claims 1-5, characterized in that... The product has two connector ends (15), and the product's test end (14) is located between the two connector ends (15). The positioning groove (41) on the positioning seat (4) is approximately in the shape of a straight line. The end of the positioning groove (41) is connected to a connector sealing groove. A sealing gasket (43) is provided in the connector sealing groove. One of the connector ends (15) of the product is tightly sealed with the sealing gasket (43), and the other connector end (15) extends out of the positioning groove (41). The product's test end (14) is set vertically upward. The sealing gasket (43) and the first elastic seal (7) seal both connector ends (15) of the product.

9. The quick-connect test connector airtightness testing device according to any one of claims 1-5, characterized in that... The connector end (15) of the product is a bamboo-shaped quick-connect connector. A second hexagonal protrusion (17) is provided between the test end and the connector end (15). The positioning groove (41) on the positioning seat (4) is a positioning hole that penetrates the positioning seat (4). The test end of the product is located in the positioning hole. The side of the second hexagonal protrusion (17) is in contact with the side of the positioning seat (4).

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