Automobile air conditioner refrigerant filling connecting joint with self-locking and adjustable functions

Abstract

The invention relates to an automobile air conditioner refrigerant filling connecting joint with self-locking and adjustable functions. The automobile air conditioner refrigerant filling connecting joint is characterized in that a plurality of first through holes are annularly formed in one end of a first structural member, steel balls are arranged in the first through holes, the other end of thefirst structural member is fixedly connected to one end of a third structural member, and the other end of the third structural member is connected with a knob through threads; a second structural member is slidably arranged in the first structural member, a first spring is clamped between the second structural member and the third structural member, a sliding sleeve is arranged the outer side ofthe first structural member in a sleeving mode, a spring is arranged between a first convex groove and a second convex groove, and the length from the second convex groove to the knob is larger than the distance from the first through holes to the knob when the knob is completely screwed into the threads of the third structural member. According to the automobile air conditioner refrigerant filling connecting joint with the self-locking and adjustable functions, the effect that automatic locking can be realized only by directly pushing a refrigerant connecting port of an air conditioner into an inner cavity of the first structural member, and only when a passage is completely closed, the joint can be separated from the air conditioner connecting port, and when the passage is not completelyclosed, the joint cannot be separated from the air conditioner connecting port.

Description

technical field [0001] The invention relates to a device for filling refrigerant, more specifically, it relates to a self-locking and adjustable refrigerant filling connection joint for automobile air conditioners. Background technique [0002] Refrigerant is a substance that absorbs heat and easily turns into gas, and releases heat and easily turns into liquid. It also contains chlorine and bromine elements, which are toxic to a certain extent. Moreover, when the car air conditioner replenishes the refrigerant, a sealed interface is required to connect with the car air conditioner system. The air inlet is sealed and connected to avoid leakage. Most of the existing refrigerant interfaces cannot achieve self-locking. It is necessary to manually move the sliding sleeve and then snap the air inlet of the air conditioning system into the sleeve joint and then release the sliding sleeve to lock it. This is very difficult to operate. It is inconvenient, and there is a certain risk...

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Problems solved by technology

[0002] Refrigerant is a substance that absorbs heat and easily turns into gas, and releases heat and easily turns into liquid. It also contains chlorine and bromine elements, which are toxic to a certain extent. Moreover, when the car air conditioner replenishes the refrigerant, a sealed interface is required to connect with the car air conditioner system. The air inlet is sealed and connected to avoid leakage. Most of the existing refrigerant interfaces cannot achieve self-locking. It is necessary to manually move the sliding sleeve and then snap the air inlet of the air conditioning system into the sleeve joint and then release the sliding sleeve to lock it. This is very difficult to operate. Inconvenient, and there is a certain risk, because the joint may escape due to air pressure or misoperation, resulting in leakage of refrigerant

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