一种空调氦检用自封阀
By designing a self-sealing valve for air conditioning helium detection, and utilizing the cooperation of sealing and locking components, the problem of impurities entering the valve tube causing deviations in detection results was solved, achieving rapid sealing and accurate detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGLU QIANDING TECH
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-17
AI Technical Summary
During air conditioner helium testing, impurities entering the valve tube can interfere with helium flow and the detection signal, leading to deviations in the test results and making it impossible to accurately determine whether there is a leak in the valve tube.
A self-sealing valve for air conditioning helium detection was designed, including a valve tube, a spring-loaded valve core, a retaining ring, a sealing assembly, and a locking assembly. Through the combination of a sealing cover, a sealing plate, a soft pad, and a soft rope, the valve tube inlet is quickly locked by the movement of a telescopic spring and a locking block to prevent impurities from entering.
This achieves rapid sealing of the helium inlet of the valve tube, preventing impurities from entering and ensuring the accuracy of the test results.
Smart Images

Figure CN224516081U_ABST
Abstract
Claims
1. A self-sealing valve for helium leak testing of air conditioners, characterized by: It includes a valve tube (1), a spring valve core (2), a retaining ring (3), a screw (4), a sealing assembly, and a locking assembly. The valve tube (1) is equipped with a spring valve core (2). The valve tube (1) is connected to a retaining ring (3) in the middle by two screws (4). The retaining ring (3) is equipped with a sealing assembly that can seal the helium inlet on the valve tube (1). The sealing assembly is equipped with a locking assembly that can be quickly locked.
2. A self-sealing valve for helium leak testing of an air conditioner as set forth in claim 1, characterized in that: The retaining ring (3) has slots on both the front and back.
3. A self-sealing valve for helium leak testing of an air conditioner as defined in claim 1, wherein: The sealing assembly includes a sealing cap (5), a sealing plate (6), a soft pad (7), and a soft rope (13). The sealing cap (5) is fitted onto the upper part of the valve tube (1). The sealing plate (6) is connected inside the sealing cap (5). The soft pad (7) is connected to the inner side of the sealing cap (5). The soft pad (7) contacts the outer side of the valve tube (1). The soft rope (13) is connected between the sealing cap (5) and the retaining ring (3).
4. A self-sealing valve for helium leak testing of air conditioners as defined in claim 1, wherein: It also includes a locking assembly, which includes a mounting block (8), a telescopic spring (9), a locking block (10) and a locking post (12). The sealing cover (5) is connected to the mounting blocks (8) on both the left and right sides. The mounting blocks (8) are slidably connected to the locking blocks (8). The front and rear parts of the locking blocks (10) are connected to the adjacent mounting blocks (8) by telescopic springs (9). The locking blocks (10) are connected to the locking posts (12) on the side that is close to each other.
5. A self-sealing valve for helium leak testing of air conditioners as defined in claim 4, wherein: It also includes a paddle (11), and the paddle (11) is connected to the side of the blocks (10) that are far apart from each other.
6. A self-sealing valve for helium leak testing of air conditioners as defined in claim 5, wherein: All paddles (11) have anti-slip textures.