A catheter device

Abstract

The utility model provides a kind of conduit device, including pipeline;The sleeve is sleeved to the pipeline outside cover, and the sleeve is equipped with the locking nut of sleeveing on the pipeline in one end;Multiple oil holes are equipped on the pipeline, and test interface and annular groove are equipped on the sleeve;The oil hole is equipped with at least two groups, and each group of oil hole includes multiple along circumferential direction alternate arrangement's through-hole;The annular groove is arranged on the inner wall of sleeve, and test interface is arranged on the outer wall of sleeve, and test interface is communicated with annular groove.The utility model solves the problems of low test efficiency, complicated operation and low pressure measurement accuracy of existing test tools, and realizes accurate, efficient and convenient testing of hydraulic valve product pressure.

Description

Technical Field

[0001] This utility model relates to a conduit device, belonging to the field of hydraulic valve product testing technology, specifically to a conduit device for improving pressure measurement accuracy. Background Technology

[0002] Hydraulic systems are widely used in numerous fields such as industry, aerospace, automotive, and shipbuilding. Hydraulic valves are key components of hydraulic systems, and their performance directly affects the stability, reliability, and safety of the hydraulic system. Before being put into use, valves must undergo rigorous pressure performance testing to ensure they can operate normally under various working conditions.

[0003] Existing methods and tools for testing valve performance have many shortcomings. Most test pipeline devices have simple structures, resulting in turbulent internal flow fields, large pressure fluctuations, low testing accuracy, and large errors in test results. They are mainly used to test hydraulic components and cannot accurately test the characteristics of valve products, making it difficult to comprehensively evaluate valve performance. Some test equipment has complex structures and is cumbersome to operate, which not only increases testing costs but also reduces testing efficiency. In addition, due to limitations in the stability of the test system and the accuracy of sensors, it is impossible to effectively detect subtle performance changes in valve products, making it difficult to meet the high-quality and high-stability requirements of modern industry for valve products. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a conduit device that can perform high-precision pressure measurement on valve products more accurately, efficiently and conveniently.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a conduit device, including a pipeline; a sleeve is fitted over the pipeline, and a locking nut is fitted onto one end of the sleeve; the pipeline has multiple oil holes, and the sleeve has a test interface and an annular groove; the oil holes are provided in at least two sets, and each set of oil holes includes multiple through holes arranged alternately along the circumference; the annular groove is provided on the inner wall of the sleeve, and the test interface is provided on the outer wall of the sleeve, and the test interface communicates with the annular groove.

[0007] The pipeline has multiple sealing grooves, and sealing rings are installed in the sealing grooves.

[0008] The sealing groove is located at the contact surface between the sleeve and the pipeline.

[0009] A pressure sensor is installed inside the test interface.

[0010] The sleeve is fitted onto a pipeline with an oil hole, and the sleeve and the pipeline form an annular flow channel.

[0011] Each group of oil holes is spaced axially along the pipe wall, and adjacent groups of oil holes are staggered in the circumferential direction.

[0012] The oil hole is connected to the annular groove.

[0013] The beneficial effects of this utility model are: it solves the problems of low testing efficiency, cumbersome operation and low pressure measurement accuracy of existing testing tools, and realizes accurate, efficient and convenient testing of the pressure of hydraulic valve products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the pipeline structure of this utility model; In the diagram: 1-locking nut, 2-sleeve, 3-test interface, 4-sealing ring, 5-pipeline, 6-oil hole, 7-ring groove. Detailed Implementation

[0015] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0016] like Figure 1 and 2 As shown, the sleeve 2 is provided with a test interface 3 and an annular groove 7. The test interface 3 is used to install a pressure sensor. The pipeline 5 is provided with two or more sets of oil holes 6 arranged alternately along the circumference. This prevents the throttling effect caused by the small diameter of the oil holes 6, which would affect the accuracy of the pressure measurement results.

[0017] During installation, first place the pipe 5 in a horizontal position, then insert the two sealing rings 4 into the sealing ring groove from the left side of the pipe 5, then insert the sleeve 2 into the shaft surface containing the sealing rings 4 from the left side of the pipe 5, and finally install and tighten the locking nut 1 from the left side of the pipe 5 to complete the assembly process.

[0018] During the test, high-pressure oil will fill the inner channel of the entire pipeline 5, and then flow out from the oil hole 6 to the annular groove 7. The pressure sensor installed at the test interface 3 can then collect the pressure test data.

[0019] Furthermore, compared to existing pipe holes, the oil hole 6 has a smaller weakening effect on the surrounding structure, which can improve the overall strength and stability of the structure where the flow field is located, improve the reliability of the device, and improve the safety of the test process. Secondly, it can make the high-pressure oil more evenly dispersed as it flows from the oil hole 6 to the annular groove 7, avoiding situations where the local flow velocity is too high or too low. Finally, although the small diameter of a single oil hole 6 will increase the friction area between the oil and the hole wall, the multiple oil holes 6 are distributed in a dispersed manner, and the flow of oil in each oil hole 6 is relatively smoother, with small oil pressure fluctuations and smaller overall pressure loss, which can provide more accurate pressure test data.

[0020] The beneficial effects of this utility model are as follows: 1. Unique structural design can improve the overall strength and stability of the structure where the flow field is located; 2. The structure is simple, easy to manufacture and use, and improves the reliability of the device and the safety of the testing process; 3. Improved testing efficiency and reduced testing costs; 4. It can be flexibly adjusted according to different pressure measurement requirements, and is suitable for testing various types of hydraulic valves, with broad application prospects.

Claims

1. A conduit device, comprising a conduit (5), characterized in that: The pipe (5) is fitted with a sleeve (2), and one end of the sleeve (2) is fitted with a locking nut (1) on the pipe (5); the pipe (5) is provided with multiple oil holes (6), and the sleeve (2) is provided with a test interface (3) and an annular groove (7); the oil holes (6) are provided with at least two sets, and each set of oil holes (6) includes multiple through holes arranged alternately along the circumference; the annular groove (7) is provided on the inner wall of the sleeve (2), and the test interface (3) is provided on the outer wall of the sleeve (2), and the test interface (3) is connected to the annular groove (7).

2. The catheter device as claimed in claim 1, characterized in that: The pipeline (5) has multiple sealing grooves, and a sealing ring (4) is provided in the sealing groove.

3. The catheter device as described in claim 2, characterized in that: The sealing groove is located at the contact surface between the sleeve (2) and the pipeline (5).

4. The catheter device as claimed in claim 1, characterized in that: A pressure sensor is installed inside the test interface (3).

5. The catheter device as claimed in claim 1, characterized in that: The sleeve (2) is fitted onto the pipe (5) which has an oil hole (6), and the sleeve (2) and the pipe (5) form an annular flow channel.

6. The catheter device as claimed in claim 1, characterized in that: Each group of oil holes (6) is spaced apart along the axial direction of the pipe wall of the pipeline (5), and the oil holes (6) of adjacent groups are staggered in the circumferential direction.

7. The catheter device as claimed in claim 1, characterized in that: The oil hole (6) is connected to the annular groove (7).

Images