Dual sealing device for high-pressure pipeline in automobile engine
An automobile engine, medium and high pressure technology, which is applied in the direction of mechanical equipment, pipes/pipe joints/fittings, flange connections, etc. It can solve problems such as leakage at the interface and affect the service life of the workpiece, so as to prevent leakage risks and strong self-adaptive ability , The effect of reducing the risk of leakage
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[0021] Example 1:
[0022] Such as figure 1 As shown, a dual sealing device for high-pressure pipelines in an automobile engine includes a pier-head adapter 1, a double-threaded joint 2, a lock nut 3, a flange A4 and a flange B5. The pier head adapter device 1 includes a tube body with a hollow structure, one end of the tube body has a pier head 6 structure, and the other end is connected with a high-pressure pipeline, and the tail end of the pier head 6 has a spherical step 8; The double-threaded joint 2 has a hollow structure, one end surface of which is provided with a concave hole 7 that is matched with the pier 6 of the pier-head adapter device 1, and the recessed hole 7 and the pier 6 can realize relative rotation between the two A flange plate A4 is sleeved on the external thread of the end; the locking nut 3 is coaxially sleeved on the pipe body of the pier-type adapter device 1, and the internal thread of the locking nut 3 and the double-threaded joint 2 In cooperation,...
Example Embodiment
[0028] Example 2:
[0029] Such as figure 2 , A dual sealing device for high-pressure pipelines in automobile engines, comprising a pier-head adapter device 1, a double threaded joint 2, a lock nut 3, a flange A4 and a flange B5, wherein the pier The head adapter device 1 includes a tube body with a hollow structure. One end of the tube body has a pier 6 structure, and the other end is connected with a high-pressure pipeline. The tail end of the pier 6 has a spherical step 8; The threaded joint 2 has a hollow structure, in which one end surface is provided with a recessed hole 7 that matches with the pier 6 of the pier-head adapter device 1, and the recessed hole 7 and the pier 6 have a cooperation that can realize the relative rotation of the two The outer thread of this end is sleeved with a flange A4; the lock nut 3 is sleeved coaxially on the pipe body of the pier-type adapter 1, and the inner thread of the lock nut 3 is matched with the double thread joint 2. , The inner ...
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