Plunger pneumatic quick-change coupler
A technology of plunger type and head, which is applied in the field of quick connection of gas pipelines, can solve the problems of many parts, large radial size, and short service life, and achieves improved service life, small radial size, and structural simple effect
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[0024] Example 1: A plunger-type pneumatic quick-change joint, such as figure 1 As shown, it includes an air inlet adapter 1, a sliding sleeve spring 2, an air inlet sealing ring 3, a valve core 4, a locking steel ball 5, a movable sliding sleeve 6, a sliding sleeve limiter 7, an air outlet sealing ring 8 and a valve core The spring 9, the sliding sleeve limiter 7 is a shaft retaining ring; the intake sleeve 1 is a sleeve structure, such as figure 2 , image 3 As shown, the left section is the connecting section, and the right section is the matching section. Four pressure relief grooves 11 are evenly arranged on the inner hole wall of the matching section of the intake sleeve 1 along the circumferential direction. The function of the pressure relief grooves 11 is to When the air bleed plug Plug is inserted, the pressure relief effect is produced, which is more conducive to the easy insertion of the air bleed plug Plug. Four locking steel ball holes 12 are evenly arranged on...
Example Embodiment
[0025] Example 2: A plunger-type pneumatic quick-change joint, such as Image 6 As shown in the figure, its structure is similar to that of Embodiment 1, except that: the sliding sleeve limiter 7 arranged between the movable sliding sleeve 6 and the air inlet adapter 1 is changed from a shaft retaining ring to a stepped shaft with a shaft shoulder Sleeve, in this example, the inner hole of the stepped shaft sleeve is matched with the outer circle of the right end of the air inlet sleeve 1, and the two are fixedly connected. There is a protective step on the right end of the stepped shaft sleeve, and the outer diameter of the protective step is related to the movement The maximum outer diameter of the right end of the sliding sleeve 6 is the same. The function of the stepped shaft sleeve can not only limit the axial position of the movable sliding sleeve 6, but also prevent the operator from directly touching the movable sliding sleeve 6 during the working process, so that the ...
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