An air tightness detection tool between an automobile air conditioner pipeline and a pressing plate

Abstract

The utility model discloses a kind of air tightness detection tool between automobile air conditioner pipeline and pressing plate, for detecting the air tightness between air conditioner pipeline and pressing plate, the air tightness detection tool between automobile air conditioner pipeline and pressing plate includes pedestal, fixed component, sealing component, air inlet component and detection component, fixed component includes bottom plate, fixing piece, sliding part, mounting piece, handle, sleeve and one end is connected with the sliding part, the connecting rod of other end through sleeve is hinged with handle after passing through hinged plate, fixing piece is set with containing groove, containing groove is set with clamping groove on sliding part, air conditioner pipeline is fixed in containing groove and clamping groove inside.The utility model's air tightness detection tool between automobile air conditioner pipeline and pressing plate, by rotating handle, to be able to drive hinged plate rotation after driving connecting rod and sliding part sliding, further make air conditioner pipeline be fixed in containing groove and clamping groove inside, without manual frequent screwing positioning screw, operation is relatively simple.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and in particular, to a tooling for testing the airtightness between an automotive air conditioning pipe and a pressure plate. Background Technology

[0002] Testing the airtightness of the automotive air conditioning pipes and pressure plate is a crucial step in ensuring the proper functioning of the automotive air conditioning system. This testing process primarily checks for leaks between the pipes and pressure plate in the air conditioning system to ensure that refrigerant (e.g., Freon) does not leak out of the system, thereby affecting the cooling performance of the air conditioner.

[0003] In the prior art, Chinese patent CN119469587B discloses an air conditioning pipe air tightness testing device, which includes a testing box, a lifting plate that is raised and lowered above the testing box, and a suspension bracket on the lower side of the lifting plate. The suspension bracket includes four suspension rods fixed to the lower side of the lifting plate by fixing screws. Two support plates are horizontally fixed between the four suspension rods. Lower positioning plates are fixed at both ends of the upper side of the two support plates. An upper positioning plate, which fixes the two ends of multiple air conditioning pipes, is covered on the upper side of the lower positioning plate. The upper positioning plate and the lower positioning plate are fixedly connected by positioning screws. In use, the two ends of multiple automotive air conditioning pipes are respectively placed inside the semi-circular positioning grooves on the upper side of the lower positioning plate. Then, the upper positioning plate is covered on the upper side of the lower positioning plate, and the upper positioning plate is fixed on the upper side of the lower positioning plate by positioning screws. However, during the installation and removal process, the positioning screws need to be manually tightened frequently, which is cumbersome. Utility Model Content

[0004] Therefore, it is necessary to provide a simple tooling for testing the airtightness between automotive air conditioning pipes and pressure plates.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a tooling for testing the air tightness between an automotive air conditioning pipe and a pressure plate, used to test the air tightness between the air conditioning pipe and the pressure plate. The tooling includes a base, a fixing component for fixing the air conditioning pipe, a sealing component disposed on one side of the fixing component, an air intake component for inflating the pressure plate and the air conditioning pipe, and a testing component for testing the air tightness between the pressure plate and the air conditioning pipe. The fixing component includes a base plate disposed on the base, a fixing member disposed on the base plate, a sliding member slidably disposed on the fixing member, a mounting member disposed on the base plate, a handle rotatably disposed on the mounting member, a sleeve disposed on the mounting member, and a connecting rod with one end connected to the sliding member and the other end passing through the sleeve and hinged to the handle via a hinge plate. The fixing member has a receiving groove, and the sliding member has a clamping groove. The air conditioning pipe is fixed in the receiving groove and the clamping groove.

[0006] Furthermore, the detection component includes a fixed frame, a cylinder, a connecting block, a fine-tuning component, and a sensor. The fixed frame is fixedly mounted on the base, the cylinder is fixedly mounted on the fixed frame, the connecting block is fixedly connected to the extended end of the cylinder, the fine-tuning component is fixedly connected to the connecting block, and the sensor is mounted on the fine-tuning component.

[0007] Furthermore, the fine-tuning component includes a fixed block, a bolt, a driving block, a moving block, a guide rod, and an elastic element. The fixed block is fixedly connected to the connecting block. The bolt is rotatably connected to the fixed block via a bearing. The driving block is slidably disposed within the fixed block and threadedly connected to the bolt. The moving block is slidably disposed on the fixed block and fits against the driving block. One end of the guide rod is fixedly connected to the moving block, and the other end of the guide rod passes through the fixed block and extends to the outside of the fixed block. The elastic element is sleeved on the outside of the guide rod.

[0008] Furthermore, one end of the guide rod is provided with a retaining edge, and the elastic element is elastically held between the retaining edge and the fixing block.

[0009] Furthermore, a groove is formed on the side of the moving block away from the fixed block, and the sensor is disposed on the groove wall.

[0010] Furthermore, the sealing assembly includes a driving component, a movable plate, and a sealing component. The driving component is fixedly mounted on the base, the movable plate is slidably engaged with the base, and the sealing component is fixedly connected to the movable plate. The sealing component is used to seal the end of the air conditioning pipe.

[0011] Furthermore, the air intake assembly includes a fixed base, an air intake pipe, and a sealing pipe. The fixed base is fixedly mounted on the base. One end of the air intake pipe passes through the fixed base, and the other end of the air intake pipe is connected to an air pump. The sealing pipe is connected to and communicates with the air intake pipe, and the sealing pipe is used to seal the pipe on the pressure plate.

[0012] Furthermore, the sensor is a pressure sensor.

[0013] Furthermore, a mounting seat is provided on the base, and the pressure plate is disposed on the mounting seat.

[0014] The beneficial effects of this utility model are: the air tightness testing fixture between the automotive air conditioning pipe and the pressure plate provided by this utility model can drive the hinge plate to rotate by rotating the handle, thereby driving the connecting rod and sliding parts to slide, so that the air conditioning pipe is fixed in the receiving groove and clamping groove. It does not require frequent manual tightening of the positioning screws, and the operation is relatively simple. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the automotive air conditioning pipe and pressure plate of this utility model;

[0017] Figure 2 This is a perspective view of the airtightness testing fixture between the automotive air conditioning pipe and the pressure plate of this utility model.

[0018] Figure 3 yes Figure 2 The enlarged view of point C in the airtightness testing fixture between the automotive air conditioning pipe and the pressure plate shown.

[0019] Figure 4 yes Figure 2 The top view of the fixture for testing the air tightness between the automotive air conditioning pipes and the pressure plate shown.

[0020] Figure 5 yes Figure 4 The image shows a cross-sectional view along AA in the airtightness testing fixture between the automotive air conditioning pipes and the pressure plate.

[0021] Figure 6 yes Figure 4 The image shows a magnified view of point B in the airtightness testing fixture between the automotive air conditioning pipe and the pressure plate.

[0022] The component names and their numbers in the diagram are as follows: 10. Air conditioning pipe; 20. Pressure plate; 1. Base; 11. Mounting seat; 2. Fixing assembly; 21. Base plate; 22. Fixing component; 221. Receiving groove; 23. Sliding component; 231. Clamping groove; 24. Mounting component; 25. Handle; 26. Sleeve; 27. Connecting rod; 28. Hinge plate; 3. Sealing assembly; 31. Driving component; 32. Moving plate; 33. Sealing component; 4. Air intake assembly; 41. Fixing seat; 42. Air intake pipe; 43. Sealing pipe; 5. Detection assembly; 51. Fixing bracket; 52. Cylinder; 53. Connecting block; 54. Fine-tuning component; 541. Fixing block; 542. Bolt; 543. Driving block; 544. Moving block; 545. Guide rod; 546. Elastic component; 547. Holding edge; 540. Groove; 55. Sensor. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] Please see Figures 1 to 6 This utility model provides a tooling for testing the air tightness between an automotive air conditioning pipe and a pressure plate, used to test the air tightness between the air conditioning pipe 10 and the pressure plate 20. The tooling includes a base 1, a fixing component 2, a sealing component 3, an air intake component 4, and a testing component 5. The fixing component 2, the sealing component 3, the air intake component 4, and the testing component 5 are all mounted on the base 1. The fixing component 2 is used to fix the air conditioning pipe 10. The sealing component 3 is mounted on one side of the fixing component 2 and is used to seal one end of the air conditioning pipe 10. The air intake component 4 is used to inflate the pressure plate 20 and the air conditioning pipe 10. The testing component 5 is used to test the air tightness between the pressure plate 20 and the air conditioning pipe 10.

[0025] A mounting base 11 is provided on the base 1, and a pressure plate 20 is provided on the mounting base 11.

[0026] The fixing assembly 2 includes a base plate 21, a fixing member 22, a sliding member 23, a mounting member 24, a handle 25, a sleeve 26, a connecting rod 27, and a hinge plate 28. The base plate 21 is fixedly mounted on the base 1, the fixing member 22 is fixedly mounted on the base plate 21, the sliding member 23 is slidably mounted on the fixing member 22, the mounting member 24 is fixedly mounted on the base plate 21 and located on one side of the fixing member 22, the handle 25 is rotatably mounted on the mounting member 24, the sleeve 26 is fixedly mounted on the mounting member 24, one end of the connecting rod 27 is fixedly connected to the sliding member 23, and the other end of the connecting rod 27 passes through the sleeve 26 and is hinged to the handle 25 through the hinge plate 28. Further, the fixing member 22 has a receiving groove 221, and the sliding member 23 has a clamping groove 231. The air conditioning pipe 10 is fixed within the receiving groove 221 and the clamping groove 231. When in use, turn the handle 25, which will cause the hinge plate 28 to rotate and then cause the connecting rod 27 and the sliding member 23 to slide, thereby fixing the air conditioning pipe 10 in the receiving groove 221 and the clamping groove 231.

[0027] The sealing assembly 3 includes a driving component 31, a movable plate 32, and a sealing component 33. The driving component 31 is fixedly mounted on the base 1, the movable plate 32 is slidably engaged with the base 1, and the sealing component 33 is fixedly connected to the movable plate 32. The sealing component 33 is used to seal the end of the air conditioning pipe 10. In this embodiment, the driving component 31 is a cylinder, and the sealing component 33 is made of silicone material. In use, the driving component 31 is activated, which moves the movable plate 32 and the sealing component 33 to the end of the air conditioning pipe 10, thereby sealing the end of the air conditioning pipe 10.

[0028] The air intake assembly 4 includes a mounting base 41, an air intake pipe 42, and a sealing pipe 43. The mounting base 41 is fixedly mounted on the base 1. One end of the air intake pipe 42 passes through the mounting base 41, and the other end of the air intake pipe 42 is connected to an air pump. The sealing pipe 43 is connected to and communicates with the air intake pipe 42, and is used to seal the pipes on the pressure plate 20. In this embodiment, the sealing pipe 43 has a trapezoidal cross-section to accommodate pipes on pressure plates 20 of different sizes. In use, the air pump is started, and the air pump fills the air intake pipe 42 and the sealing pipe 43 with air, thereby filling the air conditioning pipe 10 with air.

[0029] The detection assembly 5 includes a mounting bracket 51, a cylinder 52, a connecting block 53, a fine-tuning component 54, and a sensor 55. The mounting bracket 51 is fixedly mounted on the base 1, the cylinder 52 is fixedly mounted on the mounting bracket 51, the connecting block 53 is fixedly connected to the extended end of the cylinder 52, the fine-tuning component 54 is fixedly connected to the connecting block 53, and the sensor 55 is mounted on the fine-tuning component 54. In this embodiment, the sensor 55 is a pressure sensor.

[0030] The fine-tuning component 54 includes a fixed block 541, a bolt 542, a drive block 543, a moving block 544, a guide rod 545, and an elastic element 546. The fixed block 541 is fixedly connected to the connecting block 53. The bolt 542 is rotatably connected to the fixed block 541 through a bearing. The drive block 543 is slidably disposed inside the fixed block 541 and is threadedly connected to the bolt 542. The moving block 544 is slidably disposed on the fixed block 541 and fits against the drive block 543. One end of the guide rod 545 is fixedly connected to the moving block 544, and the other end of the guide rod 545 passes through the fixed block 541 and extends to the outside of the fixed block 541. The elastic element 546 is sleeved on the outside of the guide rod 545. One end of the guide rod 545 is provided with a support edge 547, and the elastic member 546 elastically abuts between the support edge 547 and the fixing block 541. Specifically, one end of the elastic member 546 elastically abuts with the support edge 547, and the other end of the elastic member 546 elastically abuts with the fixing block 541.

[0031] A groove 540 is provided on the side of the movable block 544 away from the fixed block 541, and the sensor 55 is disposed on the groove wall of the groove 540.

[0032] In use, cylinder 52 is activated, which drives connecting block 53, fine-tuning component 54, and sensor 55 for coarse adjustment. After sensor 55 approaches air conditioning duct 10, bolt 542 is rotated, which drives drive block 543 to slide on bolt 542, thereby driving moving block 544 to slide away from fixed block 541, so that sensor 55 is in contact with air conditioning duct 10, thus achieving fine-tuning of sensor 55. If there is air leakage between air conditioning duct 10 and pressure plate 20, gas can leak out through the gap between air conditioning duct 10 and pressure plate 20. Sensor 55 can detect the pressure, thereby achieving airtightness detection between air conditioning duct 10 and pressure plate 20.

[0033] In this embodiment, the elastic element 546 is a spring. In other embodiments not shown, the elastic element 546 may also be a component with both elasticity and rigidity, such as a stainless steel spring or a copper spring, and is not limited here.

[0034] In use, first place the pressure plate 20 on the mounting base 11, with the pipe on the pressure plate 20 aligned with the sealing pipe 43. Activate the drive unit 31, which moves the moving plate 32 and the sealing component 33 to the end of the air conditioning pipe 10, thus sealing the end of the air conditioning pipe 10. Then, turn the handle 25, which rotates the hinge plate 28, causing the connecting rod 27 and the sliding component 23 to slide, thereby fixing the air conditioning pipe 10 within the receiving groove 221 and the clamping groove 231. Further, activate the cylinder 52, which coarsely adjusts the connecting block 53, the fine-tuning component 54, and the sensor 55 until the sensor 55 is close to the air conditioning pipe. After the air conditioner duct 10 is connected, the bolt 542 is rotated, which causes the drive block 543 to slide on the bolt 542. This drives the moving block 544 to slide away from the fixed block 541, so that the sensor 55 is in contact with the air conditioner duct 10, thereby achieving fine adjustment of the sensor 55. Finally, the air pump is started, which fills the air inlet pipe 42 and the sealing canister 43 with air, thereby filling the air conditioner duct 10 with air. If there is air leakage between the air conditioner duct 10 and the pressure plate 20, the gas can leak out through the gap between the air conditioner duct 10 and the pressure plate 20. The sensor 55 can detect the pressure, thereby achieving the airtightness detection between the air conditioner duct 10 and the pressure plate 20.

[0035] The air tightness testing fixture between the automotive air conditioning pipe and the pressure plate provided by this utility model can rotate the handle 25, thereby driving the hinge plate 28 to rotate and then driving the connecting rod 27 and the sliding part 23 to slide, so that the air conditioning pipe 10 is fixed in the receiving groove 221 and the clamping groove 231. It does not require frequent manual tightening of the positioning screws, and the operation is relatively simple.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tooling for testing the airtightness between an automotive air conditioning pipe and a pressure plate, used to test the airtightness between the air conditioning pipe and the pressure plate, characterized in that: The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate includes a base, a fixing component for fixing the air conditioning pipe, a sealing component disposed on one side of the fixing component, an air intake component for inflating the pressure plate and the air conditioning pipe, and a testing component for testing the airtightness between the pressure plate and the air conditioning pipe. The fixing component includes a base plate disposed on the base, a fixing member disposed on the base plate, a sliding member slidably disposed on the fixing member, a mounting member disposed on the base plate, a handle rotatably disposed on the mounting member, a sleeve disposed on the mounting member, and a connecting rod having one end connected to the sliding member and the other end passing through the sleeve and hinged to the handle via a hinge plate. The fixing member has a receiving groove, and the sliding member has a clamping groove. The air conditioning pipe is fixed in the receiving groove and the clamping groove.

2. The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate as described in claim 1, characterized in that: The detection assembly includes a fixed frame, a cylinder, a connecting block, a fine-tuning component, and a sensor. The fixed frame is fixedly mounted on the base, the cylinder is fixedly mounted on the fixed frame, the connecting block is fixedly connected to the extended end of the cylinder, the fine-tuning component is fixedly connected to the connecting block, and the sensor is mounted on the fine-tuning component.

3. The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate as described in claim 2, characterized in that: The fine-tuning component includes a fixed block, a bolt, a drive block, a moving block, a guide rod, and an elastic element. The fixed block is fixedly connected to the connecting block. The bolt is rotatably connected to the fixed block via a bearing. The drive block is slidably disposed within the fixed block and threadedly connected to the bolt. The moving block is slidably disposed on the fixed block and fits against the drive block. One end of the guide rod is fixedly connected to the moving block, and the other end of the guide rod passes through the fixed block and extends to the outside of the fixed block. The elastic element is sleeved on the outside of the guide rod.

4. The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate as described in claim 3, characterized in that: One end of the guide rod is provided with a retaining edge, and the elastic element is elastically held between the retaining edge and the fixing block.

5. The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate as described in claim 3, characterized in that: The movable block has a groove on the side away from the fixed block, and the sensor is disposed on the groove wall.

6. The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate as described in claim 1, characterized in that: The sealing assembly includes a driving component, a movable plate, and a sealing component. The driving component is fixedly mounted on the base. The movable plate is slidably engaged with the base. The sealing component is fixedly connected to the movable plate and is used to seal the end of the air conditioning pipe.

7. The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate as described in claim 1, characterized in that: The air intake assembly includes a fixed base, an air intake pipe, and a sealing pipe. The fixed base is fixedly mounted on the base. One end of the air intake pipe passes through the fixed base, and the other end of the air intake pipe is connected to an air pump. The sealing pipe is connected to and communicates with the air intake pipe, and the sealing pipe is used to seal the pipe on the pressure plate.

8. The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate as described in claim 2, characterized in that: The sensor is a pressure sensor.

9. The airtightness testing fixture between the automotive air conditioning pipe and the pressure plate as described in claim 1, characterized in that: The base is provided with a mounting seat, and the pressure plate is disposed on the mounting seat.

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