Air tightness test equipment for hydraulic pipeline assembly

Abstract

The utility model relates to the field of hydraulic pipe assembly testing, and discloses a hydraulic pipeline assembly air tightness testing device which comprises a water tank, a first bearing roller, an air blower, an adjusting plate and a second bearing roller, the top of the water tank is provided with a vertical plate and a positioning plate, the vertical plate is provided with an air blowing structure, the two ends of the first bearing roller are provided with first connecting shafts, and the two ends of the second bearing roller are provided with second connecting shafts. A fixing ring is arranged on the first bearing roller, a first connecting shaft penetrates through the fixing ring, a first sealing cylinder is arranged on the first bearing roller, an inner cavity communicated with the first sealing cylinder is formed in the first bearing roller, an adjusting plate is connected with a pushing structure, and a second bearing roller is movably arranged on the adjusting plate. The adjusting plate vertically moves under the action of the first hydraulic cylinder and the first piston rod, the adjusting plate drives the second bearing roller to ascend or descend, the second bearing roller drives one end of the hydraulic pipe assembly to ascend or descend, and the hydraulic pipe assembly conveniently enters water in the water tank in an inclined mode to conduct air tightness detection and inclined drying treatment. The air tightness detection efficiency and the drying efficiency of the hydraulic pipe assembly are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipe testing technology, specifically a hydraulic pipeline assembly airtightness testing device. Background Technology

[0002] Currently, during the processing of hydraulic pipes, damaged hydraulic pipes with cracks, micropores, etc., are not easily identified by operators and are thus mixed into qualified products, resulting in a decrease in the pass rate of hydraulic pipes. Existing hydraulic pipe testing methods mostly use underwater air pressure testing devices for air pressure testing. For example, patent application number 201821254236.8 discloses a hydraulic pipe assembly air tightness testing device, which solves the problem of the hydraulic pipe surface being damp after testing. However, it has problems such as poor sealing of hydraulic pipes during testing, inability to test multiple hydraulic pipes simultaneously, and low accuracy of test results.

[0003] Based on this, the applicant proposes a hydraulic pipeline assembly airtightness testing device and its operating method. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of existing hydraulic pipe assembly airtightness testing devices, such as poor sealing of hydraulic pipes during testing, inability to test multiple hydraulic pipes simultaneously, and low accuracy of test results. This invention provides a hydraulic pipe assembly airtightness testing device and its operating method that features a reasonable structural design, good sealing of the hydraulic pipe assembly during testing, the ability to test multiple hydraulic pipes simultaneously, and high accuracy of test results.

[0005] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0006] A hydraulic pipeline assembly airtightness testing device includes a water tank, a first bearing roller, a blower, an adjusting plate, and a second bearing roller. The water tank has a vertical plate and a positioning plate on its top. A top plate is located on the top of the vertical plate. A fixing ring is located on the positioning plate, and a pushing structure is located on the top plate. A blowing structure is located on the vertical plate, which can dry the hydraulic pipeline assembly after airtightness testing, improving the drying efficiency. The first bearing roller has connecting shafts at both ends, which pass through the fixing rings. A sealing cylinder is located on the first bearing roller, and an inner cavity communicating with the sealing cylinder is located inside the first bearing roller. The blower is located on the top plate, and an air supply pipe is located on the blower. A connecting pipe is located on the air supply pipe, and the connecting pipe passes through the connecting shaft and into the inner cavity. The adjusting plate is connected to the pushing structure. The second bearing roller is movably mounted on the adjusting plate. On the plate, a sealing cylinder is set on the second bearing roller. Depending on the size and length of the hydraulic pipe assembly to be tested for air tightness, a corresponding sealing cylinder is selected. The first sealing cylinder is installed on the first bearing roller, and the second sealing cylinder is installed on the second bearing roller. The position of the second bearing roller on the adjustment plate is adjusted. One end of the hydraulic pipe assembly is inserted into the first sealing cylinder, and the other end of the hydraulic pipe assembly is inserted into the second sealing cylinder. The blower blows air into the inner cavity of the first bearing roller through the air supply pipe and connecting pipe. The air in the inner cavity flows into the hydraulic pipe assembly through the through-hole column, increasing the pressure inside the hydraulic pipe assembly. The adjustment plate moves vertically under the action of the pushing structure. The adjustment plate drives the second bearing roller to rise or fall, so that the second bearing roller drives one end of the hydraulic pipe assembly to rise or fall. This facilitates the hydraulic pipe assembly to tilt into the water in the water tank for air tightness testing and tilting for drying treatment, improving the air tightness testing efficiency of the hydraulic pipe assembly.

[0007] Preferably, the first bearing roller is configured to rotate between the positioning plates via the connecting shaft. The adjusting plate moves vertically under the action of the pushing structure, and the adjusting plate drives the second bearing roller to rise or fall, so that the second bearing roller drives one end of the hydraulic pipe assembly to rise or fall, and the other end of the hydraulic pipe assembly drives the first bearing roller to rotate. This facilitates the hydraulic pipe assembly to tilt into the water in the water tank for air tightness testing and tilting for drying, thereby improving the air tightness testing efficiency of the hydraulic pipe assembly.

[0008] Preferably, the pushing structure includes a hydraulic cylinder, which is mounted on a top plate. A piston rod is mounted on the hydraulic cylinder and connected to an adjusting plate. Fixed plates are mounted on opposite sides of the adjusting plate, and a bearing roller is movably mounted between the fixed plates. The adjusting plate moves vertically under the action of the hydraulic cylinder and the piston rod, causing the bearing roller to rise or fall. This causes the bearing roller to rise or fall at one end of the hydraulic pipe assembly, facilitating the tilting of the hydraulic pipe assembly into the water tank for airtightness testing and tilting for drying. This improves the airtightness testing and drying efficiency of the hydraulic pipe assembly.

[0009] Preferably, the fixed plate is provided with a limiting groove, and the two ends of the bearing roller are provided with connecting shafts. The connecting shafts extend through the limiting groove and are configured to be adjustable within the limiting groove. The bearing roller is configured to be rotatable between the fixed plate and the fixed plate. The limiting groove provides space for the lateral movement of the connecting shaft, allowing the bearing roller to move laterally between the fixed plates. This achieves the purpose of adjusting the distance between the sealing cylinder and the sealing cylinder to suit hydraulic pipe assemblies of different lengths, improving the versatility of the testing equipment. It also facilitates the movement of the bearing roller during the rise or fall of the hydraulic pipe assembly, allowing the hydraulic pipe assembly to be tilted into the water or tilted during the drying process for comprehensive airtightness testing or thorough drying.

[0010] Preferably, the sealing cylinder 1 on the first bearing roller and the sealing cylinder 2 on the second bearing roller are configured in a one-to-one correspondence structure. The sealing cylinder 1 is designed to be replaceable on the first bearing roller, and the sealing cylinder 2 is designed to be replaceable on the second bearing roller. The sealing cylinder 1 and the first bearing roller are connected by threads, and the sealing cylinder 2 and the second bearing roller are connected by threads, which facilitates the installation or replacement of the sealing cylinder 1 on the first bearing roller and the second sealing cylinder on the second bearing roller. According to the different sizes of hydraulic pipe assemblies, the corresponding sealing cylinder 1 and sealing cylinder 2 are selected, which can improve the versatility of the testing equipment and improve the sealing performance between the hydraulic pipe assembly and the sealing cylinder 1 and the hydraulic pipe assembly and the sealing cylinder 2, thereby improving the accuracy of the airtightness test results. Multiple sealing cylinders 1 are set on the first bearing roller, and sealing cylinders 2 corresponding to the sealing cylinders 1 are set on the second bearing roller, which can simultaneously perform airtightness tests on multiple hydraulic pipe assemblies, thereby improving the airtightness test efficiency of the hydraulic pipe assembly.

[0011] Preferably, the first sealing cylinder is provided with a through-hole column, which connects to the inner cavity of the first bearing roller. The second sealing cylinder is provided with a sealing column. Both the through-hole column and the sealing column are provided with sealing layers. Through the sealing layers on the through-hole column and the sealing column, the sealing performance between the hydraulic pipe assembly and the through-hole column and between the hydraulic pipe assembly and the sealing column is further improved. This prevents airflow from flowing out between the hydraulic pipe assembly and the through-hole column and between the hydraulic pipe assembly and the sealing column during the airtightness test, thereby improving the accuracy of the airtightness test results.

[0012] Preferably, a pressure sensor is installed on the inner wall of the sealing cylinder, and a connecting column is installed on the outer wall of the sealing cylinder. A pressure gauge is installed on the connecting column and connected to the pressure sensor. The blower blows air into the inner cavity of the bearing roller through the air supply pipe and the connecting pipe. The air in the inner cavity flows into the hydraulic pipe assembly through the through-hole column, increasing the pressure inside the hydraulic pipe assembly. The pressure sensor can sense the air pressure inside the hydraulic pipe assembly. The pressure inside the hydraulic pipe assembly is reflected on the pressure gauge in real time, which makes it easy for the staff to observe whether the pressure value of the pressure gauge changes during the air tightness test of the hydraulic pipe assembly, thereby determining the air tightness of the hydraulic pipe assembly.

[0013] Preferably, the connecting shaft at one end of the bearing roller is a hollow structure. The connecting pipe extends into the inner cavity through the hollow connecting shaft, and a sealing ring is provided between the inner wall of the hollow connecting shaft and the outer wall of the connecting pipe. The blower blows air into the inner cavity of the bearing roller through the air supply pipe and the connecting pipe. The airflow in the inner cavity flows into the hydraulic pipe assembly through the through-hole column, increasing the pressure inside the hydraulic pipe assembly. This allows for an airtightness test of the hydraulic pipe assembly. The sealing ring improves the sealing between the connecting pipe and the connecting shaft, preventing airflow from escaping between them. This provides sufficient pressure for the airtightness test of the hydraulic pipe assembly, thereby improving the accuracy of the airtightness test results.

[0014] Preferably, the blowing structure includes a second hydraulic cylinder and a movable plate. The second hydraulic cylinder is mounted on the vertical plate, and a second piston rod is mounted on the second hydraulic cylinder. The movable plate is connected to the second piston rod, and a fixing hole is provided on the movable plate. An exhaust fan is installed in the fixing hole. After the airtightness of the hydraulic pipe assembly is completed, the second hydraulic cylinder and the second piston rod push the movable plate to move back and forth. The exhaust fan blows airflow downwards towards the movable plate, so that the airflow dries the hydraulic pipe assembly after the airtightness test. In conjunction with the action of the first hydraulic cylinder, the hydraulic pipe assembly moves up and down during the drying process, which quickly dries the hydraulic pipe assembly and improves work efficiency.

[0015] Beneficial effects:

[0016] 1. The adjusting plate moves vertically under the action of hydraulic cylinder one and piston rod one. The adjusting plate drives the bearing roller two to rise or fall, so that the bearing roller two drives one end of the hydraulic pipe assembly to rise or fall. This makes it easier for the hydraulic pipe assembly to enter the water in the water tank at an angle for air tightness testing and to be dried at an angle. This can improve the air tightness testing efficiency and drying efficiency of the hydraulic pipe assembly.

[0017] 2. Selecting appropriate sealing sleeves one and two according to the different sizes of hydraulic pipe assemblies can improve the versatility of the testing equipment and the sealing between the hydraulic pipe assembly and sealing sleeve one and the hydraulic pipe assembly and sealing sleeve two, thereby improving the accuracy of the airtightness test results. Multiple sealing sleeves one are set on the first bearing roller, and sealing sleeves two corresponding to sealing sleeves one are set on the second bearing roller. This allows for the simultaneous airtightness testing of multiple hydraulic pipe assemblies, thereby improving the airtightness testing efficiency of hydraulic pipe assemblies.

[0018] 3. After the airtightness of the hydraulic pipe assembly is completed, hydraulic cylinder two and piston rod two push the moving plate back and forth. The exhaust fan blows airflow downwards towards the moving plate, so that the airflow dries the hydraulic pipe assembly after the airtightness test. In conjunction with the action of hydraulic cylinder one, the hydraulic pipe assembly moves up and down during the drying process, which dries the hydraulic pipe assembly quickly and improves work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a partial structural schematic diagram of the present invention, illustrating the connection structure between the bearing roller and the sealing cylinder.

[0021] Figure 3 This is a partial structural schematic diagram of the present invention, illustrating the connection structure between the adjustment plate and the second bearing roller.

[0022] Figure 4 This is a partial structural schematic diagram of the present invention, illustrating the connection structure between the sealing cylinder and the through-hole column.

[0023] Figure 5 This is a partial structural schematic diagram of the present invention, illustrating the connection structure between the connecting shaft and the connecting pipe.

[0024] Figure 6 This is a partial structural diagram of the present invention, illustrating the connection structure between the movable plate and the fan.

[0025] Figure 7 This is a schematic diagram of another embodiment of the present invention.

[0026] In the diagram: 1. Water tank, 2. Bearing roller 1, 3. Blower, 4. Adjusting plate, 5. Bearing roller 2, 6. Vertical plate, 7. Positioning plate, 8. Top plate, 9. Fixing ring, 10. Hydraulic cylinder 1, 11. Piston rod 1, 12. Hydraulic cylinder 2, 13. Moving plate, 14. Piston rod 2, 15. Fixing hole, 16. Exhaust fan, 17. Connecting shaft 1, 18. Sealing cylinder 1, 19. Inner cavity, 20. Through-hole column, 21. Pressure sensor, 22. Connecting column, 23. Pressure gauge, 24. Sealing layer, 25. Air duct, 26. Connecting pipe, 27. Sealing ring, 28. Fixing plate, 29. Limiting groove, 30. Connecting shaft 2, 31. Sealing cylinder 2, 32. Sealing column, 33. Heating block, 34. Heating rod. Detailed Implementation

[0027] The present invention will now be described in more detail with reference to the accompanying drawings.

[0028] Example 1:

[0029] As attached Figure 1-6 As shown: A hydraulic pipeline assembly airtightness testing device includes a water tank 1, a first bearing roller 2, a blower 3, an adjusting plate 4, and a second bearing roller 5. The top of the water tank 1 is provided with a vertical plate 6 and a positioning plate 7. A top plate 8 is provided on the top of the vertical plate 6. A fixing ring 9 is provided on the positioning plate 7, and a pushing structure is provided on the top plate 8. A blowing structure is provided on the vertical plate 6. The first bearing roller 2 is provided with connecting shafts 17 at both ends, which pass through the fixing rings 9. A sealing cylinder 18 is provided on the first bearing roller 2, and an inner cavity 19 communicating with the sealing cylinder 18 is provided inside the first bearing roller 2. The blower 3 is provided on the top plate 8, and an air supply pipe 25 is provided on the blower 3. A connecting pipe 26 is provided on the air supply pipe 25, and the connecting pipe 26 passes through the connecting shaft 17 into the inner cavity 19. The adjusting plate 4 is connected to the pushing structure. The second bearing roller 5 is movably provided on the adjusting plate 4, and a second sealing cylinder 31 is provided on the second bearing roller 5.

[0030] Among them, the bearing roller 2 is configured to rotate between the positioning plate 7 and the positioning plate 7 via the connecting shaft 17.

[0031] The pushing structure includes a hydraulic cylinder 10, which is mounted on the top plate 8. A piston rod 11 is mounted on the hydraulic cylinder 10 and connected to the adjusting plate 4. Fixed plates 28 are mounted on opposite sides of the adjusting plate 4. A bearing roller 25 is movably mounted between the fixed plates 28. A limit groove 29 is provided on the fixed plate 28. Connecting shafts 20 are provided at both ends of the bearing roller 25. The connecting shafts 20 extend through the limit grooves 29 and are configured to be adjustable within the limit grooves 29. The bearing roller 25 is configured to be rotatable between the fixed plates 28 and the fixed plates 28.

[0032] In this design, the sealing cylinder 18 on the first bearing roller 2 and the sealing cylinder 31 on the second bearing roller 5 are configured to correspond one-to-one. The sealing cylinder 18 is designed to be replaceable on the first bearing roller 2, and the sealing cylinder 31 is designed to be replaceable on the second bearing roller 5. A through-hole column 20 is provided inside the sealing cylinder 18, and the through-hole column 20 is connected to the inner cavity 19 of the first bearing roller 2. A sealing column 32 is provided inside the sealing cylinder 31. Both the through-hole column 20 and the sealing column 32 are provided with a sealing layer 24. A pressure sensor 21 is provided on the inner wall of the sealing cylinder 18, and a connecting column 22 is provided on the outer wall of the sealing cylinder 18. A pressure gauge 23 is provided on the connecting column 22 and is connected to the pressure sensor 21. The connecting shaft 17 at one end of the first bearing roller 2 is designed to be hollow. A connecting tube 26 is inserted into the inner cavity 19 through the hollow connecting shaft 17, and a sealing ring 27 is provided between the inner wall of the hollow connecting shaft 17 and the outer wall of the connecting tube 26.

[0033] The blowing structure includes a second hydraulic cylinder 12 and a moving plate 13. The second hydraulic cylinder 12 is mounted on the upright plate 6, and a second piston rod 14 is mounted on the second hydraulic cylinder 12. The moving plate 13 is connected to the second piston rod 14, and a fixing hole 15 is provided on the moving plate 13. An exhaust fan 16 is installed in the fixing hole 15.

[0034] Example 2:

[0035] Further explanation will be provided under the circumstances described in Example 1, as shown in the attached document. Figure 7 As shown, a hydraulic pipeline assembly airtightness testing device has an electric heating block 33 installed on the inner wall of the fixing hole 15, and a heating rod 34 installed between the electric heating blocks 33. During the drying process of the hydraulic pipeline assembly after airtightness testing, the heat generated by the heating rod 34 is blown onto the hydraulic pipeline assembly by the airflow under the action of the exhaust fan 16, which quickly dries the hydraulic pipeline assembly and improves the drying efficiency of the hydraulic pipeline assembly, thereby improving the efficiency of airtightness testing.

[0036] Working principle: Water is injected into water tank 1. Based on the required size and length of the hydraulic hose assembly for airtightness testing, the corresponding sealing cylinder 18 and sealing cylinder 2 31 are selected. Sealing cylinder 18 is installed on bearing roller 2, and sealing cylinder 2 31 is installed on bearing roller 5. The position of bearing roller 2 5 between the fixed plate 28 and the fixed plate 28 is adjusted. One end of the hydraulic hose assembly is inserted into sealing cylinder 18, and the through-hole post 20 inside sealing cylinder 18 is inserted into the hydraulic hose assembly. The other end of the hydraulic hose assembly is inserted into sealing cylinder 2 31, and the sealing post 32 inside sealing cylinder 2 31 is inserted into the hydraulic hose assembly. The blower is then started. 3. Blower 3 blows airflow into the inner cavity 19 of the bearing roller 2 through air supply pipe 25 and connecting pipe 26. The airflow in the inner cavity 19 flows into the hydraulic pipe assembly through the through-hole column 20, increasing the pressure inside the hydraulic pipe assembly. Pressure sensor 21 can sense the air pressure inside the hydraulic pipe assembly, and the pressure inside the hydraulic pipe assembly is reflected in real time on pressure gauge 23. Start hydraulic cylinder 10, and adjusting plate 4 drives fixed plate 28 and the bearing roller 5 between fixed plate 28 to move downward, so that bearing roller 5 drives sealing cylinder 31 and one end of hydraulic pipe assembly to move downward into water tank 1. The first bearing roller 2 rotates between the positioning plates 7 and 7, and the second bearing roller 5 rotates between the fixed plates 28 and 28. The hydraulic pipe assembly between the second sealing cylinder 31 and the first sealing cylinder 18 is tilted into the water in the water tank 1. The hydraulic pipe assembly is then submerged in the water for an airtightness test. Observe whether air bubbles emerge from the hydraulic pipe. If air bubbles are present, the airtightness of the hydraulic pipe assembly is poor; otherwise, it is good. After the airtightness test is completed, the blower 3 is turned off, and the first hydraulic cylinder 10 is started to lift the adjusting plate 4, thereby pulling the hydraulic pipe assembly back into the water. Currently, the hydraulic cylinder is in a horizontal or inclined state with one end of the sealing cylinder 2 31 higher and the other end of the sealing cylinder 18 lower. Start the hydraulic cylinder 2 12 and the exhaust fan 16. The hydraulic cylinder 2 12 and the piston rod 2 14 push the moving plate 13 to move back and forth. The exhaust fan 16 blows airflow downwards towards the moving plate 13, so that the airflow dries the hydraulic pipe assembly after the air tightness test. With the action of the hydraulic cylinder 10, the hydraulic pipe assembly moves up and down during the drying process, and the water remaining on the surface of the hydraulic pipe assembly flows back and forth, so as to quickly dry the hydraulic pipe assembly. After the hydraulic pipe assembly is dried, replace it with a new hydraulic pipe assembly and continue to perform the air tightness test.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0038] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A hydraulic line assembly air tightness test equipment, comprising a water tank, a bearing roller one, a blower, an adjusting plate and a bearing roller two, characterized in that: The water tank is equipped with a vertical plate and a positioning plate on top. A top plate is installed on the top of the vertical plate. A fixing ring is installed on the positioning plate, and a pushing structure is installed on the top plate. A blowing structure is installed on the vertical plate. A connecting shaft is installed at both ends of the first bearing roller. The connecting shaft passes through the fixing ring. A sealing cylinder is installed on the first bearing roller, and an inner cavity communicating with the sealing cylinder is provided inside the first bearing roller. The blower is installed on the top plate. An air supply pipe is installed on the blower. A connecting pipe is installed on the air supply pipe, and the connecting pipe passes through the connecting shaft and enters the inner cavity. The adjusting plate is connected to the pushing structure. The second bearing roller is movably installed on the adjusting plate, and a second sealing cylinder is installed on the second bearing roller.

2. The hydraulic line assembly air tightness testing apparatus of claim 1, wherein: The bearing roller is configured to rotate between the positioning plates via a connecting shaft.

3. The hydraulic line assembly air tightness testing apparatus of claim 1, wherein: The pushing structure includes a hydraulic cylinder, which is mounted on a top plate. A piston rod is mounted on the hydraulic cylinder and connected to an adjusting plate. Fixed plates are mounted on opposite sides of the adjusting plate, and a bearing roller is movably mounted between the fixed plates.

4. The hydraulic line assembly air tightness testing apparatus of claim 3, wherein: The fixed plate is provided with a limiting groove, and the two ends of the bearing roller are provided with connecting shafts. The connecting shafts extend out of the limiting groove and are configured to be adjustable in position within the limiting groove. The bearing roller is configured to be rotatable between the fixed plate and the fixed plate.

5. The hydraulic line assembly air tightness testing apparatus of claim 1, wherein: The sealing cylinder 1 on the first bearing roller and the sealing cylinder 2 on the second bearing roller are configured to correspond one-to-one. The sealing cylinder 1 is configured to be replaceable on the first bearing roller, and the sealing cylinder 2 is configured to be replaceable on the second bearing roller.

6. The hydraulic line assembly air tightness testing apparatus of claim 1, wherein: The first sealing cylinder is provided with a through-hole column, which is connected to the inner cavity of the first bearing roller. The second sealing cylinder is provided with a sealing column, and both the through-hole column and the sealing column are provided with a sealing layer.

7. The hydraulic line assembly air tightness testing apparatus of claim 6, wherein: A pressure sensor is installed on the inner wall of the sealing cylinder, and a connecting column is installed on the outer wall of the sealing cylinder. A pressure gauge is installed on the connecting column and connected to the pressure sensor.

8. The hydraulic line assembly air tightness testing apparatus of claim 1, wherein: The connecting shaft at one end of the bearing roller is configured as a hollow structure, through which the connecting tube extends into the inner cavity, and a sealing ring is provided between the inner wall of the hollow connecting shaft and the outer wall of the connecting tube.

9. The hydraulic line assembly leak test apparatus of claim 1, wherein: The blower structure includes a second hydraulic cylinder and a movable plate. The second hydraulic cylinder is mounted on the vertical plate, and a second piston rod is mounted on the second hydraulic cylinder. The movable plate is connected to the second piston rod, and a fixing hole is provided on the movable plate, with an exhaust fan installed in the fixing hole.

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