一种汽车空调管路连接螺母螺栓机构
By using the mating of male and female connectors and the limiting connection of the bolt sleeve, the automotive air conditioning pipes can be quickly connected, self-locked to prevent detachment, and automatically opened and closed. This solves the problems of loose connection, poor sealing, and refrigerant leakage in existing technologies, and improves connection efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU TENGLI AUTO PARTS
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing automotive air conditioning piping connection structures have defects in high-pressure sealing, connection strength, self-locking, and disassembly and assembly stability. Furthermore, they lack an integrated automatic opening and closing internal valve core design, leading to refrigerant leakage and safety hazards. Operation is also complex and inefficient.
It adopts a male and female mating mechanism, combined with the limiting thread connection of bolt sleeve and sealing tube, to achieve quick connection of refrigerant channel with plug-in self-locking, reliable sealing and easy operation. It integrates automatic opening and closing valve core, limiting anti-disengagement device and multiple sealing structure.
It improves connection efficiency and system sealing, ensures operational safety, avoids refrigerant leakage, and enhances assembly efficiency and operational safety.
Smart Images
Figure CN224516236U_ABST
Abstract
Claims
1. An automobile air conditioning pipe connecting nut and bolt mechanism, characterized by comprising: include: The device comprises a male connector (100), a female connector (200), and a bolt sleeve (300); one end of the male connector (100) is provided with a male connector (110), and the bolt sleeve (300) is slidably sleeved on the outer surface of the male connector (110). The outer surface of the male connector (110) is provided with a first spring (112) for limiting one end of the bolt sleeve (300); a liquid passage hole (111) for refrigerant flow is provided on the male connector (110); a bushing seat (210) is fixedly installed on the inner side of the female connector (200), and the bushing... An inner valve core (220) is slidably sleeved on the inner side of the seat (210); a second spring (221) is fixedly connected to one end of the bushing seat (210) for limiting one end of the inner valve core (220); a sealing tube (310) is provided on one side of the bolt sleeve (300) for threaded connection with the female head (200), and the sealing tube (310) is sleeved on the outer surface of the male head (110) for sealing the liquid passage hole (111); the outer surface of the male head (100) is provided with an external thread structure for connection with the other end of the bolt sleeve (300).
2. The automotive air conditioning line connection nut and bolt mechanism according to claim 1, characterized by, The bolt sleeve (300) is slidably sleeved on the outer surface of the protrusion (110), and the first spring (112) is used to push and limit the position of the bolt sleeve (300) so that the sealing tube (310) is stably sleeved on the outer periphery of the liquid passage hole (111).
3. The automotive air conditioning line connection nut and bolt mechanism as set forth in claim 1, characterized by, The end of the protruding joint (110) is a cone-shaped structure, which is used to limit the movement of the sleeve tube (310) and prevent the sleeve tube (310) from detaching from the outer surface of the protruding joint (110).
4. The automotive air conditioning line connection nut and bolt mechanism as set forth in claim 1, characterized by, The inner valve core (220) has a groove structure on one side for matching the end of the male connector (110). The outer periphery of the inner valve core (220) abuts against the inner wall of the female connector (200), and the outer periphery of the inner valve core (220) is provided with a sealing ring that abuts against the inner wall of the female connector (200).
5. The automotive air conditioning pipe connection nut and bolt mechanism according to claim 1, characterized in that, The thread direction on the outer surface of the male head (100) is opposite to that on the inner side of the female head (200), and matches the thread structure on the inner side of the bolt sleeve (300) and the outer surface of the sleeve tube (310), respectively.
6. The automotive air conditioning line connection nut and bolt mechanism as set forth in claim 1, characterized by, The outer surface of the protruding joint (110) is provided with sealing slip rings on both sides of the liquid passage hole (111). The sealing slip rings slide against the inner side of the bolt sleeve (300) to improve the sealing performance of the structure.
7. The automotive air conditioning line connection nut and bolt mechanism as set forth in claim 1, characterized by, The inner cavity of the female head (200) has a spindle-shaped cross-section, and the inner valve core (220) is coaxially arranged inside the female head (200) through the bushing seat (210), which makes the flow channel layout more concentrated and improves the connection sealing performance.