A detection tool for a variable diameter pipeline of an automobile engine
By designing a test fixture for variable diameter pipelines in automotive engines, which includes components such as an electric push rod, a sealing top plate, a pressure detector, and a clamping mechanism, the sealing and accuracy issues of the test equipment under harsh working conditions have been solved, achieving efficient and accurate pipeline testing and automated adaptation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GIGGS MASCH TECH CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, the testing equipment for variable diameter pipelines in automobile engines suffers from insufficient dimensional accuracy, poor structural strength, or inadequate sealing performance under harsh conditions such as high temperature, high pressure, chemical corrosion, and mechanical vibration, which affects engine performance and reliability.
A testing fixture for variable diameter pipelines in automotive engines has been designed, comprising an electric push rod and a sealing top plate, a pressure detector and a sealing rubber ring, combined with an adjustment mechanism, a clamping mechanism and an inflation assembly, to achieve pipeline sealing, real-time air pressure detection and automated clamping, and to adapt to pipelines of different lengths.
To ensure leak-free pipeline testing, improve testing accuracy and automation, adapt to pipelines of different lengths, reduce manual intervention, enhance sealing and stability, and test the pipeline's pressure resistance and leakage status.
Smart Images
Figure CN224499856U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of variable diameter pipeline technology, specifically a testing fixture for variable diameter pipelines in automobile engines. Background Technology
[0002] The internal structure of a car engine is complex, and variable-diameter piping, as a crucial component, plays a vital role in transporting coolant, engine oil, and various gases. During engine operation, these piping systems must withstand harsh conditions such as high temperatures, high pressures, chemical corrosion, and mechanical vibrations. Taking a turbocharged engine as an example, the intake piping needs to precisely control the intake air volume under different operating conditions, and its diameter adjusts with changes in engine load. If the variable-diameter piping lacks dimensional accuracy, structural strength, or sealing performance, it will not only reduce engine power output and fuel economy but may also lead to engine malfunctions, affecting the overall performance and reliability of the vehicle. To ensure the quality and performance of variable-diameter piping, precise testing techniques and specialized fixtures are indispensable.
[0003] In recent years, significant advancements have been made in sensor technology, automation control technology, and computer vision technology, providing strong technical support for the development of inspection fixtures for variable-diameter pipelines in automotive engines. The application of high-precision sensors enables the inspection fixtures to acquire more accurate pipeline dimensions and performance data; automation control technology has achieved intelligent and automated inspection processes, reducing manual intervention and improving inspection efficiency and stability; and computer vision technology can quickly identify and analyze the appearance and shape of pipelines, providing more comprehensive information for inspection.
[0004] Therefore, this utility model provides a testing fixture for variable diameter pipelines in automobile engines. Utility Model Content
[0005] To overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a testing fixture for variable diameter pipelines of automobile engines is proposed.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A testing fixture for a variable diameter pipeline of an automotive engine, comprising a base plate; an L-shaped fixing bracket is fixedly installed on the top of the base plate, and a support leg is fixedly installed on the bottom of the base plate; a sealing component is provided on the top of the inner wall of the L-shaped fixing bracket, and an auxiliary component is provided on the top of the inner wall of the L-shaped fixing bracket; an adjustment mechanism is provided on the top of the base plate, and a support mechanism is provided on the top of the base plate; a clamping mechanism is provided on the top of the base plate, and an inflation component is provided on the bottom of the base plate; the sealing component includes an electric push rod and a sealing top plate; the electric push rod is fixedly installed on the top of the inner wall of the L-shaped fixing bracket, and the output end of the electric push rod is fixedly installed with the sealing top plate; the cooperation of the electric push rod and the sealing top plate can seal the pipeline by pushing the sealing top plate, ensuring that the pipeline will not leak during testing. Furthermore, the combination of the electric push rod and the sealing top plate allows this fixture to adapt to pipelines of different lengths.
[0007] Preferably, the auxiliary components include a pressure detector and a sealing rubber ring. The pressure detector is fixedly installed at the bottom of the sealing top plate, and the sealing rubber ring is fixedly installed at the bottom of the sealing top plate. The pressure detector is located on the inner wall of the sealing rubber ring. In this solution, the pressure detector can detect changes in air pressure data inside the pipeline in real time and provide feedback to the user, allowing the user to clearly observe changes inside the pipeline. The sealing rubber ring can enhance the sealing performance of the sealing top plate and ensure the accuracy of the detection.
[0008] Preferably, the adjusting mechanism includes a rectangular slide, forward and reverse screws, and a motor. The rectangular slide is formed on one side of the top of the base plate, the forward and reverse screws are rotatably installed in the rectangular slide on the top of the base plate, and the motor is fixedly installed on one side of the base plate. One end of the forward and reverse screws is fixedly installed to the output end of the motor. In this scheme, the combined use of the rectangular slide, forward and reverse screws, and motor can drive the support rod to move, thereby enabling the clamping mechanism to clamp the pipeline, improving the automation level of the equipment and reducing manual intervention.
[0009] Preferably, the support mechanism includes a support rod, a support vertical rod, and a fixed support block. Two sets of support rods are provided, threadedly installed at both ends of the surfaces of the forward and reverse screws. The support rods are slidably installed with the base plate. The top of the support rod on the side away from the forward and reverse screws is fixedly installed with the support vertical rod, and the side of the support vertical rod closest to each other is fixedly installed with the fixed support block. In this design, the coordinated use of the support rod, support vertical rod, and fixed support block enables the simultaneous movement of multiple sets of clamping plates, ensuring that the multiple sets of clamping plates can collaboratively clamp the pipeline.
[0010] Preferably, the clamping mechanism includes a clamping plate, an arc-shaped plate, a spring, a fixing plate, and a rubber pad. The clamping plate is fixedly installed on the side of the fixed support block away from the supporting vertical rod. Two sets of arc-shaped plates are provided, and the two sets of arc-shaped plates are rotatably installed on both sides of the clamping plate. The clamping plate has a built-in torsion spring. Several sets of springs are provided, and the several sets of springs are fixedly installed in a ring on the inner side of the clamping plate and the arc-shaped plate. The end of the spring away from the clamping plate and the arc-shaped plate is fixedly installed with the fixing plate, and the end of the fixing plate away from the spring is fixedly installed with the rubber pad. In this scheme, the coordinated use of the clamping plate, the arc-shaped plate, the spring, the fixing plate, and the rubber pad can clamp the pipeline as it moves with the supporting long rod, so that the pipeline can remain stable during testing, and at the same time, it can also protect the pipeline.
[0011] Preferably, the inflation assembly includes an air pipe and an air pump. The air pipe is fixedly installed on the top of the base plate, and the air pump is fixedly installed on the bottom of the base plate. The air pipe is connected to the output end of the air pump. In this scheme, the combined use of the air pipe and the air pump can continuously inflate the inside of the pipeline to test the pressure resistance and leakage of the pipeline.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The present invention relates to a testing fixture for a variable diameter pipeline of an automotive engine. Through the arrangement of an electric push rod and a sealing top plate, the electric push rod and the sealing top plate work together to seal the pipeline by pushing the sealing top plate, ensuring that the pipeline will not leak during testing. At the same time, the arrangement of the electric push rod and the sealing top plate also allows the fixture to be adapted to pipelines of different lengths.
[0014] 2. The present invention provides a testing fixture for a variable diameter pipeline of an automotive engine. By setting up a pressure detector and a sealing rubber ring, the pressure detector can detect changes in air pressure inside the pipeline in real time and provide feedback to the user, allowing the user to clearly observe changes inside the pipeline. The sealing rubber ring can enhance the sealing performance of the sealing top plate and ensure the accuracy of the test. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a front perspective view of the present invention;
[0017] Figure 2 This is a top view of the present invention;
[0018] Figure 3 This is a bottom view of this utility model;
[0019] Figure 4 yes Figure 1Enlarged view of a portion of point A in the middle;
[0020] Figure 5 yes Figure 1 Enlarged view of a section at point B in the middle;
[0021] Figure 6 yes Figure 2 Enlarged view of a section at point C;
[0022] Figure 7 yes Figure 3 Enlarged view of a section at point D.
[0023] Legend:
[0024] 1. Base plate; 2. L-shaped fixed bracket; 3. Support leg; 4. Sealing assembly; 41. Electric push rod; 42. Sealing top plate; 5. Auxiliary assembly; 51. Pressure detector; 52. Sealing rubber ring; 6. Adjustment mechanism; 61. Rectangular slide groove; 62. Forward and reverse screws; 63. Motor; 7. Support mechanism; 71. Support rod; 72. Support vertical rod; 73. Fixed support block; 8. Clamping mechanism; 81. Clamping plate; 82. Arc plate; 83. Spring; 84. Fixed small plate; 85. Rubber pad; 9. Inflation assembly; 91. Vent pipe; 92. Air pump. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Specific implementation examples are given below.
[0027] like Figures 1 to 7As shown in the embodiment of this utility model, a testing fixture for a variable diameter pipeline of an automobile engine includes a base plate 1; an L-shaped fixing bracket 2 is fixedly installed on the top of the base plate 1, and a support leg 3 is fixedly installed on the bottom of the base plate 1; a sealing component 4 is provided on the top of the inner wall of the L-shaped fixing bracket 2, and an auxiliary component 5 is provided on the top of the inner wall of the L-shaped fixing bracket 2; an adjustment mechanism 6 is provided on the top of the base plate 1, and a support mechanism 7 is provided on the top of the base plate 1; a clamping mechanism 8 is provided on the top of the base plate 1, and an inflation component 9 is provided on the bottom of the base plate 1; the sealing component 4 includes an electric push rod 41 and a sealing top plate 42, and the electric push rod 41 is fixedly installed on the L-shaped fixing bracket 3. The output end of the electric push rod 41 is fixedly installed on the top of the inner wall of the frame 2 and the sealing top plate 42; the auxiliary component 5 includes a pressure detector 51 and a sealing rubber ring 52. The pressure detector 51 is fixedly installed on the bottom of the sealing top plate 42, and the sealing rubber ring 52 is fixedly installed on the bottom of the sealing top plate 42. The pressure detector 51 is located on the inner wall of the sealing rubber ring 52. The adjusting mechanism 6 includes a rectangular slide 61, a forward and reverse screw 62, and a motor 63. The rectangular slide 61 is opened on one side of the top of the base plate 1. The forward and reverse screw 62 is rotatably installed in the rectangular slide 61 opened on the top of the base plate 1. The motor 63 is fixedly installed on one side of the base plate 1. The forward and reverse screw 62 is... One end is fixedly installed to the output end of the motor 63. The support mechanism 7 includes a support rod 71, a support vertical rod 72, and a fixed support block 73. Two sets of support rods 71 are provided, and the two sets of support rods 71 are threadedly installed at both ends of the surface of the forward and reverse screws 62. The support rods 71 are slidably installed with the base plate 1. The top of the support rod 71 on the side away from the forward and reverse screws 62 is fixedly installed with the support vertical rod 72, and the side of the support vertical rods 72 that are close to each other is fixedly installed with the fixed support block 73. The clamping mechanism 8 includes a clamping plate 81, an arc plate 82, a spring 83, a fixed small plate 84, and a rubber pad 85. The clamping plate 81 is fixedly installed on the fixed support block 73 away from the support vertical rod 72. On one side, two sets of arc-shaped plates 82 are provided. The two sets of arc-shaped plates 82 are rotatably installed on both sides of the clamping plate 81. The clamping plate 81 has a torsion spring inside. Several sets of springs 83 are provided. The several sets of springs 83 are fixedly installed in a ring on the inner side of the clamping plate 81 and the arc-shaped plates 82 respectively. The end of the spring 83 away from the clamping plate 81 and the arc-shaped plates 82 is fixedly installed with the fixing plate 84. The end of the fixing plate 84 away from the spring 83 is fixedly installed with the rubber pad 85. The inflation assembly 9 includes an air pipe 91 and an air pump 92. The air pipe 91 is fixedly installed on the top of the base plate 1. The air pump 92 is fixedly installed on the bottom of the base plate 1. The air pipe 91 is connected to the output end of the air pump 92.
[0028] like Figures 1 to 7As shown, the combined use of the electric push rod 41 and the sealing top plate 42 can seal the pipeline by pushing the sealing top plate 42, ensuring that the pipeline will not leak during testing. Simultaneously, the combination of the electric push rod 41 and the sealing top plate 42 allows this fixture to adapt to pipelines of different lengths. The pressure detector 51 can detect changes in the internal air pressure of the pipeline in real time and provide feedback to the user, allowing the user to clearly observe changes inside the pipeline. The sealing rubber ring 52 enhances the sealing performance of the sealing top plate 42, ensuring the accuracy of the test. The combined use of the rectangular slide groove 61, the forward and reverse screws 62, and the motor 63 enables the movement of the support rod 71, thereby... The clamping mechanism 8 enables the clamping of pipelines, improving the automation level of the equipment and reducing manual intervention. The combined use of the supporting rod 71, the supporting vertical rod 72, and the fixed support block 73 can simultaneously drive the movement of multiple sets of clamping plates 81, ensuring that multiple sets of clamping plates 81 can work together to clamp the pipeline. The combined use of clamping plates 81, arc plate 82, spring 83, fixed small plate 84, and rubber pad 85 can clamp the pipeline as it moves with the supporting rod 71, keeping the pipeline stable during testing and providing protection for the pipeline. The combined use of vent pipe 91 and air pump 92 can continuously inflate the inside of the pipeline to test the pipeline's pressure resistance and leakage.
[0029] Working principle: During operation, first place the base plate 1 on a flat surface, then align the automotive pipeline vertically with the vent pipe 91 and insert it downwards, positioning the vent pipe 91 on the inner wall of the pipeline. Next, activate the electric push rod 41 to push the sealing top plate 42 downwards. As the sealing top plate 42 moves downwards, it drives the pressure detector 51 and the sealing rubber ring 52 to move. With the continuous movement of the sealing top plate 42, it blocks the top of the pipeline. Then, activate the motor 63 to drive the forward and reverse screws 62 to rotate. The rotation of the forward and reverse screws 62 drives the two sets of support rods 71 to move towards the center. With the continuous movement of the support rods 71… Rubber pad 85 will contact the pipeline, and then fixing plate 84 will compress spring 83 to one side. When spring 83 is compressed to a certain extent, motor 63 will stop, so that fixing plate 84 and rubber pad 85 can fix the two sides of the pipeline by the elastic force of spring 83. Finally, air pump 92 will be started to supply air into vent pipe 91. The gas will enter the inner wall of the pipeline through vent pipe 91. When the gas supply is turned on, pressure detector 51 will be started to detect the air pressure inside the pipeline. When the air pressure reaches the appropriate strength, the inflation will stop. At that time, the user only needs to observe the rate of decrease of air pressure inside the pipeline to clearly know the condition of the pipeline.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A testing fixture for a variable diameter pipeline of an automobile engine, comprising a base plate (1); characterized in that: An L-shaped fixing bracket (2) is fixedly installed on the top of the base plate (1), a support leg (3) is fixedly installed on the bottom of the base plate (1), a sealing component (4) is provided on the top of the inner wall of the L-shaped fixing bracket (2), and an auxiliary component (5) is provided on the top of the inner wall of the L-shaped fixing bracket (2). The sealing assembly (4) includes an electric push rod (41) and a sealing top plate (42). The electric push rod (41) is fixedly installed on the top of the inner wall of the L-shaped fixed bracket (2), and the output end of the electric push rod (41) is fixedly installed with the sealing top plate (42). The auxiliary component (5) includes a pressure detector (51) and a sealing rubber ring (52). The pressure detector (51) is fixedly installed at the bottom of the sealing top plate (42), and the sealing rubber ring (52) is fixedly installed at the bottom of the sealing top plate (42). The pressure detector (51) is located on the inner wall of the sealing rubber ring (52).
2. The testing fixture for a variable diameter pipeline in an automotive engine according to claim 1, characterized in that: An adjustment mechanism (6) is provided on the top of the base plate (1), and a support mechanism (7) is provided on the top of the base plate (1).
3. The testing fixture for a variable diameter pipeline in an automotive engine according to claim 2, characterized in that: The top of the base plate (1) is provided with a clamping mechanism (8), and the bottom of the base plate (1) is provided with an inflation assembly (9).
4. The testing fixture for a variable diameter pipeline in an automotive engine according to claim 3, characterized in that: The adjustment mechanism (6) includes a rectangular slide (61), a forward and reverse screw (62), and a motor (63). The rectangular slide (61) is opened on one side of the top of the base plate (1). The forward and reverse screw (62) is rotatably installed in the rectangular slide (61) opened on the top of the base plate (1). The motor (63) is fixedly installed on one side of the base plate (1). One end of the forward and reverse screw (62) is fixedly installed with the output end of the motor (63).
5. The testing fixture for a variable diameter pipeline in an automotive engine according to claim 4, characterized in that: The support mechanism (7) includes a support rod (71), a support vertical rod (72), and a fixed support block (73). The support rod (71) is provided in two sets. The two sets of support rods (71) are threadedly installed at both ends of the surface of the forward and reverse screws (62). The support rod (71) is slidably installed with the base plate (1). The top of the support rod (71) on the side away from the forward and reverse screws (62) is fixedly installed with the support vertical rod (72). The side of the support vertical rod (72) that is close to each other is fixedly installed with the fixed support block (73).
6. The testing fixture for a variable diameter pipeline in an automotive engine according to claim 5, characterized in that: The clamping mechanism (8) includes a clamping plate (81), an arc plate (82), a spring (83), a fixing plate (84), and a rubber pad (85). The clamping plate (81) is fixedly installed on the side of the fixing block (73) away from the supporting vertical rod (72). There are two sets of arc plates (82), which are rotatably installed on both sides of the clamping plate (81). The clamping plate (81) has a torsion spring inside. There are several sets of springs (83), which are fixedly installed in a ring on the inner side of the clamping plate (81) and the arc plate (82). The end of the spring (83) away from the clamping plate (81) and the arc plate (82) is fixedly installed with the fixing plate (84). The end of the fixing plate (84) away from the spring (83) is fixedly installed with the rubber pad (85).
7. The testing fixture for a variable diameter pipeline in an automotive engine according to claim 6, characterized in that: The inflation assembly (9) includes an air pipe (91) and an air pump (92). The air pipe (91) is fixedly installed on the top of the base plate (1), and the air pump (92) is fixedly installed on the bottom of the base plate (1). The air pipe (91) is connected to the output end of the air pump (92).