A fluid connection airtightness detection device

Abstract

The utility model discloses a kind of fluid connecting piece air-tightness detection devices, including bottom plate, the upper portion of bottom plate is provided with annular plate, the outer wall of annular plate is fixedly connected with annular cover, the lower end of annular cover is fixedly connected with the upper end of bottom plate by support plate, the upper end of bottom plate is fixedly connected with two mounting plates, the opposite side of two The mounting plate is equipped with two electric telescopic rods, the telescopic end of every two mutually cooperating electric telescopic rods is fixedly connected with sealing plate, the upper end of bottom plate is installed air compressor, the air outlet end of air compressor is communicated with connecting pipe, the connecting pipe and one of sealing plate are interconnected. Its setting threaded rod, driving bevel gear and gear ring etc. structure, can let multiple clamping plates from different directions fluid connecting piece is clamped and fixed, adapts the fluid connecting piece of different outer diameter, improves clamping adaptability and detection efficiency.

Description

Technical Field

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

[0002] Fluid connectors, as core components for transmitting media in hydraulic, pneumatic, and water supply and drainage systems, are widely used in automobile manufacturing, aerospace, petrochemical, and medical device industries. Their airtightness directly determines the safety, stability, and media transmission efficiency of the system. Therefore, airtightness testing has become a key link in the production, assembly, and maintenance of fluid connectors.

[0003] However, when conducting airtightness testing, the clamping mechanism of the testing device often adopts a unidirectional or symmetrical bidirectional clamping structure, which can only be adapted to fluid connectors with a fixed outer diameter. For connectors with different outer diameters, it is necessary to frequently change the clamping fixtures or adjust the equipment parameters, which not only prolongs the test preparation time but also increases the equipment operating cost. Therefore, we need to consider how to solve this problem. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fluid connector airtightness testing device. This device is equipped with a threaded rod, a drive bevel gear, and a toothed ring, which allows multiple clamping plates to clamp and fix the fluid connector from different directions, adapting to fluid connectors with different outer diameters and improving clamping adaptability and testing efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fluid connector airtightness testing device includes a base plate, an annular plate on top of the base plate, an annular cover fixedly connected to the outer wall of the annular plate, the lower end of the annular cover being fixedly connected to the upper end of the base plate via a support plate, two mounting plates fixedly connected to the upper end of the base plate, two electric telescopic rods mounted on opposite sides of the two mounting plates, and a sealing plate fixedly connected to the telescopic ends of each pair of cooperating electric telescopic rods, an air compressor mounted on the upper end of the base plate, and a connecting pipe connected to the air outlet of the air compressor, the connecting pipe communicating with one of the sealing plates, a pressure sensor mounted on one of the sealing plates, and a clamping mechanism shared by the annular plate and the annular cover.

[0007] Preferably, the clamping mechanism includes a plurality of threaded sleeves rotatably connected to the annular plate, each threaded sleeve having a threaded rod threadedly connected inside, one end of each threaded rod being fixedly connected to a movable plate, the other side of each movable plate being fixedly connected to a connecting rod, and the other end of each connecting rod being fixedly connected to a clamping plate.

[0008] Preferably, a plurality of guide rods are provided through the annular plate, each guide rod is slidably connected to the annular plate, and one end of each guide rod is fixedly connected to the corresponding movable plate.

[0009] Preferably, the outer wall of the annular plate is fixedly connected to a plurality of fixed plates, each fixed plate has a rotating shaft rotatably connected to one side wall, each rotating shaft has a driving bevel gear fixedly connected to one end, and each threaded sleeve has a driven bevel gear fixedly connected to its outer wall, each driven bevel gear meshing with the corresponding driving bevel gear.

[0010] Preferably, the other end of each of the rotating shafts passes through a corresponding fixing plate and is fixedly connected to a gear. The outer wall of the annular plate is rotatably connected to a toothed ring, and each of the gears meshes with the toothed ring.

[0011] Preferably, a motor is mounted on the outer wall of the annular cover, and the end of the output shaft of the motor extends into the interior of the annular cover and is fixedly connected to the other end of one of the rotating shafts.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The structure includes a threaded sleeve, clamping plate, and driving bevel gear. Through the meshing transmission between the driving bevel gear and the driven bevel gear, as well as the meshing transmission between the gear and the gear ring, the clamping plate can move synchronously with the threaded rod to clamp the fluid connector from multiple directions, thereby adapting to fluid connectors with different outer diameters and improving the stability of clamping.

[0014] 2. The system includes a mounting plate, an electric telescopic rod, and a sealing plate. The electric telescopic rod pushes the sealing plate to fit the fluid connection port, and a rubber gasket ensures a reliable seal. It is compatible with connections of different lengths and, in conjunction with an air compressor and pressure sensor, can detect leaks, ensuring the accuracy and efficiency of airtightness testing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a fluid connector airtightness testing device proposed in this utility model;

[0016] Figure 2 for Figure 1 Right-side cross-sectional view;

[0017] Figure 3 for Figure 2 Enlarged view of point A;

[0018] Figure 4 for Figure 1 A schematic diagram of the left-side cross-section;

[0019] Figure 5 for Figure 4 Enlarged view of point B;

[0020] Figure 6 for Figure 1 The diagram on the left.

[0021] In the diagram: 1. Base plate, 2. Ring plate, 3. Ring cover, 4. Support plate, 5. Threaded sleeve, 6. Threaded rod, 7. Moving plate, 8. Connecting rod, 9. Clamping plate, 10. Guide rod, 11. Fixing plate, 12. Rotating shaft, 13. Driving bevel gear, 14. Driven bevel gear, 15. Gear, 16. Gear ring, 17. Motor, 18. Mounting plate, 19. Electric telescopic rod, 20. Sealing plate, 21. Air compressor, 22. Connecting pipe, 23. Pressure sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-6 A fluid connector airtightness testing device includes a base plate 1, an annular plate 2 disposed above the base plate 1, an annular cover 3 fixedly connected to the outer wall of the annular plate 2, and the lower end of the annular cover 3 fixedly connected to the upper end of the base plate 1 via a support plate 4. A clamping mechanism is jointly provided on the annular plate 2 and the annular cover 3. The annular cover 3 not only provides support but also serves as a protective shell to prevent foreign objects from being drawn in during the operation of the clamping mechanism. The clamping mechanism includes multiple threaded sleeves 5 rotatably connected to the annular plate 2. Each threaded sleeve 5 has a threaded rod 6 threadedly connected inside it. One end of each threaded rod 6 is fixedly connected to a movable plate 7, and the other side of each movable plate 7 is fixedly connected to a connecting rod 8. Each connecting rod 8... The other end of each is fixedly connected to a clamping plate 9. Each clamping plate 9 has a rubber layer on its clamping side, which not only avoids hard contact damage to the surface of the fluid connector during clamping, but also enhances the clamping friction through the elastic deformation of the rubber, thereby improving the adaptability and clamping stability of fluid connectors with different outer diameters. Multiple guide rods 10 are provided through the annular plate 2. Each guide rod 10 is slidably connected to the annular plate 2, and one end of each guide rod 10 is fixedly connected to the corresponding moving plate 7. Each moving plate 7 corresponds to two parallel guide rods 10. The other end of each guide rod 10 is fixedly connected to a limit plate (not marked in the figure) to prevent the guide rod 10 from slipping out of the annular plate 2.

[0024] The annular plate 2 has multiple fixed plates 11 fixedly connected to its outer wall. Each fixed plate 11 has a rotating shaft 12 rotatably connected to one side wall. One end of each rotating shaft 12 is fixedly connected to a driving bevel gear 13. Each threaded sleeve 5 has a driven bevel gear 14 fixedly connected to its outer wall. Each driven bevel gear 14 meshes with its corresponding driving bevel gear 13. The other end of each rotating shaft 12 passes through its corresponding fixed plate 11 and is fixedly connected to a gear 15. A gear ring 16 is rotatably connected to the outer wall of the annular plate 2. Each gear 15 meshes with a gear... The ring 16 is engaged, and a motor 17 is installed on the outer wall of the annular cover 3. The motor 17 is a servo motor. The output shaft of the motor 17 extends into the interior of the annular cover 3 and is fixedly connected to the other end of one of the rotating shafts 12. The motor 17 drives the gear ring 16, and through the meshing transmission of the gear 15, rotating shaft 12, driving bevel gear 13 and driven bevel gear 14, it drives multiple threaded sleeves 5 to rotate synchronously, thereby causing the threaded rod 6 to push the moving plate 7 and clamping plate 9 to move, thereby achieving the clamping of fluid connectors with different outer diameters and improving the stability of the detection.

[0025] The base plate 1 has two mounting plates 18 fixedly connected to its upper end. Two electric telescopic rods 19 are mounted on opposite sides of each mounting plate 18. A sealing plate 20 is fixedly connected to the telescopic ends of each pair of cooperating electric telescopic rods 19. Rubber gaskets are fixedly connected to the contact sides of the two sealing plates 20 with the fluid connector. The two sealing plates 20 are driven by the electric telescopic rods 19 and, in conjunction with the rubber gaskets, can press and seal both ends of the fluid connector, adapting to connectors of different lengths. The sealing method is simple and reliable. An air compressor 21 is mounted on the upper end of the base plate 1. A connecting pipe 22 connects to the air outlet of the air compressor 21. A series of sealing plates 20 are interconnected, and a pressure sensor 23 is installed on one of the sealing plates 20. Both the air compressor 21 and the pressure sensor 23 are existing technologies and will not be described in detail here. The pressure sensor 23 is connected to the internal cavity of the fluid connector through a through hole inside the sealing plate 20 to ensure direct monitoring of the pressure in the sealed cavity. In addition, the pressure sensor 23 is electrically connected to an external control system for real-time transmission of the detected pressure data. Thus, the air compressor 21 inflates the inner cavity of the sealed connector through the connecting pipe 22, and the pressure sensor 23 directly monitors the pressure inside the cavity and transmits it to the control system to achieve real-time detection of airtightness.

[0026] In this invention, during use, the fluid connector to be tested is first placed in the clamping area inside the annular plate 2. Then, the motor 17 is started, driving the connected rotating shaft 12 to rotate. The rotation of the rotating shaft 12 will drive the corresponding gear 15 to rotate. Since the gear 15 meshes with the gear ring 16, it will drive the gear ring 16 to rotate. The gear ring 16 will then drive all the meshing gears 15 and the corresponding rotating shaft 12 to rotate. The rotation of the rotating shaft 12 will drive the active bevel gear 13 to rotate. Since the active bevel gear 13 meshes with the driven bevel gear 14, it will cause the driven bevel gear 14 to rotate, thereby causing the threaded sleeve 5 to rotate on the annular plate 2. The rotation of the threaded sleeve 5 will be converted into the axial movement of the threaded rod 6, thereby pushing the moving plate 7 to smoothly approach the fluid connector along the guiding direction of the guide rod 10. Finally, the fluid connector is clamped by the rubber layer of multiple clamping plates 9. The rubber layer adapts to connectors with different outer diameters through elastic deformation and enhances the clamping stability.

[0027] After clamping, activate the two electric telescopic rods 19 to extend them, pushing the two sealing plates 20 closer to both ends of the fluid connector until the rubber pads on the sealing plates 20 make tight contact with the connector ports to achieve a seal. Then, start the air compressor 21 and fill the sealed fluid connector cavity with gas at a certain pressure through the connecting pipe 22. The pressure sensor 23 monitors the cavity pressure in real time and transmits the data to the external control system. If the pressure remains stable within the set time, it indicates that the airtightness of the connector is qualified. If the pressure drops, there is a leak. After the test is completed, each component is reset in reverse order, and the fluid connector can be removed.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fluid connector airtightness testing device, comprising a base plate (1), characterized in that, An annular plate (2) is provided above the base plate (1). An annular cover (3) is fixedly connected to the outer wall of the annular plate (2). The lower end of the annular cover (3) is fixedly connected to the upper end of the base plate (1) through a support plate (4). Two mounting plates (18) are fixedly connected to the upper end of the base plate (1). Two electric telescopic rods (19) are installed on opposite sides of the two mounting plates (18). The telescopic ends of each pair of electric telescopic rods (19) are fixedly connected to a sealing plate (20). An air compressor (21) is installed at the upper end of the base plate (1). The air outlet of the air compressor (21) is connected to a connecting pipe (22). The connecting pipe (22) is connected to one of the sealing plates (20). A pressure sensor (23) is installed on one of the sealing plates (20). The annular plate (2) and the annular cover (3) are both equipped with a clamping mechanism.

2. The fluid connector airtightness testing device according to claim 1, characterized in that, The clamping mechanism includes multiple threaded sleeves (5) that are rotatably connected to the annular plate (2). Each threaded sleeve (5) is threaded with a threaded rod (6). One end of each threaded rod (6) is fixedly connected to a movable plate (7). The other side of each movable plate (7) is fixedly connected to a connecting rod (8). The other end of each connecting rod (8) is fixedly connected to a clamping plate (9).

3. The fluid connector airtightness testing device according to claim 2, characterized in that, Multiple guide rods (10) are provided through the annular plate (2). Each guide rod (10) is slidably connected to the annular plate (2), and one end of each guide rod (10) is fixedly connected to the corresponding movable plate (7).

4. The fluid connector airtightness testing device according to claim 2, characterized in that, The outer wall of the annular plate (2) is fixedly connected to a plurality of fixed plates (11), and a rotating shaft (12) is rotatably connected to one side wall of each fixed plate (11). One end of each rotating shaft (12) is fixedly connected to a driving bevel gear (13), and the outer wall of each threaded sleeve (5) is fixedly connected to a driven bevel gear (14). Each driven bevel gear (14) meshes with the corresponding driving bevel gear (13).

5. The fluid connector airtightness testing device according to claim 4, characterized in that, The other end of each of the rotating shafts (12) passes through the corresponding fixing plate (11) and is fixedly connected to a gear (15). The outer wall of the annular plate (2) is rotatably connected to a toothed ring (16), and each of the gears (15) meshes with the toothed ring (16).

6. The fluid connector airtightness testing device according to claim 5, characterized in that, A motor (17) is installed on the outer wall of the annular cover (3). The output shaft of the motor (17) extends into the interior of the annular cover (3) and is fixedly connected to the other end of one of the rotating shafts (12).

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