一种汽车悬架弹簧氦检设备
By designing a helium testing device suitable for air springs, increasing the tightness of the connection by using butt joints and sealing sleeves, and maintaining vacuum by combining a molecular pump unit, the problem of inaccurate testing by existing equipment was solved, and efficient helium testing of air springs was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU FEIMUTE INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-10-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing helium testing equipment is not suitable for use with air springs. Different sizes of air springs affect the sealing effect, leading to inaccurate testing.
A helium testing device for automotive suspension springs was designed, including a helium testing station, a helium mass spectrometer leak detector, a molecular pump unit, a connecting pipe, a connector, and a sealing sleeve. The device is connected to the air spring through the connector, the sealing sleeve is used to increase the tightness, and the molecular pump unit maintains a vacuum. The nozzle and slider are used to adjust the position for testing.
It achieves effective sealing of air springs of different sizes, improves the accuracy of detection and the reliability of values, and is suitable for helium testing of air springs.
Smart Images
Figure CN224518051U_ABST
Abstract
Claims
1. An automotive suspension spring helium inspection apparatus characterized by comprising: include: A helium detection station (1) is equipped with a helium mass spectrometer leak detector (2) on one side of the helium detection station (1). A molecular pump unit (3) is provided at the bottom of the helium detection station (1). A first connecting pipe (4) is inserted into the detection end of the helium mass spectrometer leak detector (2). A second connecting pipe (5) is inserted into the pumping end of the molecular pump unit (3). The other ends of the first connecting pipe (4) and the second connecting pipe (5) are both fixedly connected to an external threaded pipe (6). A butt joint (7) is installed on the outer wall of the external threaded pipe (6) by thread. A sealing sleeve (8) is glued to the inner wall of the butt joint (7). A support plate (9) is provided above the top of the helium detection station (1). A sleeve (17) is screwed onto the top end face of the helium detection station (1). A movable block (18) is fixedly connected to the bottom end face of the support plate (9). A lifting groove (19) is opened inside the sleeve (17). One bottom end of the movable block (18) is inserted into the lifting groove (19).
2. The automotive suspension spring helium inspection apparatus of claim 1 wherein, The bottom of the movable block (18) is movably mounted with a top rod (20) via a rotating joint. The outer wall of the sleeve (17) is provided with a movable opening (21), and the movable opening (21) is connected to the lifting groove (19). The top end face of the helium detection platform (1) is provided with a sliding groove (22), and a slider (23) is slidably installed in the sliding groove (22). The other end of the top rod (20) is connected to the slider (23) via a rotating joint. The top end face of the helium detection platform (1) is riveted with a guide frame (24), and a screw (25) is installed in the guide frame (24) via a thread.
3. The automotive suspension spring helium inspection apparatus of claim 2 wherein, One end of the screw (25) is attached to the outer wall of one end of the slider (23), and a return spring (26) is screwed to the outer wall of the other end of the slider (23), and the other end of the return spring (26) is attached to the inner wall of the groove (22).
4. The automotive suspension spring helium inspection apparatus of claim 1 wherein, The top end face of the helium testing station (1) is screwed with a pair of slide rails (10). A slide frame (27) is provided above the top of the helium testing station (1), and the bottom sides of the slide frame (27) are slidably installed in the two slide rails (10). The tray (9) is located below the bottom of the slide frame (27).
5. The automotive suspension spring helium inspection apparatus of claim 4 wherein, The inner wall of the slide (27) is provided with a moving groove (11), and a moving block (12) is slidably installed inside the moving groove (11). A nozzle (13) is fixed to the bottom of the moving block (12), and a handle (14) is screwed to one side of the moving block (12).
6. The automotive suspension spring helium inspection apparatus of claim 1 wherein, A support plate (15) is fixed to one side of the outer wall of the helium detection station (1), and the helium mass spectrometer leak detector (2) is placed on the support plate (15). A base plate (16) is screwed to the bottom of the helium detection station (1), and the molecular pump unit (3) is placed on the base plate (16).
7. The automotive suspension spring helium inspection apparatus of claim 1 wherein, Both the first connecting pipe (4) and the second connecting pipe (5) are corrugated expansion pipes.
8. The automotive suspension spring helium inspection apparatus of claim 1 wherein, The sealing sleeve (8) is made of rubber material, and the inner contour of the sealing sleeve (8) is stepped.