Self-locking high-pressure quick coupling device

Abstract

The utility model relates to quick -coupling technical field discloses a self -locking high -pressure quick -coupling device, including first connection locking unit, first connection locking unit includes the connecting barrel, and the outside of connecting barrel is provided with the outer thread, and the outside of connecting barrel is equipped with the locking ring, the inside of locking ring is provided with the internal thread simultaneously, the inside of connecting barrel is provided with the spherical groove, and the inside of spherical groove is connected with the locking ball, first connection locking unit still includes the connecting shaft, and the outside of connecting barrel of first connection locking unit is equipped with the outer thread, and the internal thread screw thread connection with the inside of locking ring, locking ring adopts high -strength aluminium alloy material, can bear the greater axial force, ensure not to come loose under high -pressure environment. The cooperation of spherical groove and locking ball makes the connecting shaft after inserting the connecting barrel, locking ball is automatically embedded locking groove under the action of connecting spring, forms the self -locking, prevents the connecting axle and slides out because of high pressure or vibration.

Claims

1. A self-locking high-voltage quick coupling device, characterized in that: The first connection locking unit (1) includes a connecting cylinder (11), and the outer side of the connecting cylinder (11) is provided with an external thread (12), and the outer side of the connecting cylinder (11) is provided with a locking ring (13), while the inner side of the locking ring (13) is provided with an internal thread (14), the inner side of the connecting cylinder (11) is provided with a spherical groove (15), and the inner side of the spherical groove (15) is connected with a locking ball (16). The first connection locking unit (1) also includes a connecting shaft (17), and the connecting shaft (17) is provided with a locking groove (18). A second connection locking unit (2) is provided on one side of the first connection locking unit (1). The second connection locking unit (2) includes a connecting rod (21), and a connecting spring (22) is connected to the inner side of one end of the connecting rod (21). A connecting ball (23) is connected to one end of the connecting spring (22). The second connection locking unit (2) also includes a fixing ring (24) provided on the outside of the connecting cylinder (11). A connecting slide rod (25) is connected to the fixing ring (24), and a connecting block (26) is connected to one end of the connecting slide rod (25).

2. The self-locking high-voltage quick coupling device according to claim 1, characterized in that: The locking ring (13) rotates and slides on the outside of the connecting cylinder (11), and the connecting cylinder (11) is threadedly connected to the internal thread (14) on the inside of the locking ring (13) through the external thread (12).

3. The self-locking high-voltage quick coupling device according to claim 2, characterized in that: The spherical groove (15) is provided in multiple sets and is arranged in a ring array on the connecting cylinder (11). The locking ball (16) is located inside the spherical groove (15) and the number of locking balls (16) is equal to the number of spherical grooves (15).

4. The self-locking high-voltage quick coupling device according to claim 3, characterized in that: The connecting shaft (17) slides on the inner side of the connecting cylinder (11), and the locking ball (16) slides on the inner side of the locking groove (18). The number of spherical grooves (15), locking balls (16) and locking grooves (18) are equal, and the locking ball (16) slides against the inner side of the locking ring (13).

5. A self-locking high-voltage quick coupling device according to claim 4, characterized in that: The connecting rod (21) is fixedly set on one side of the locking ring (13), and the two ends of the connecting spring (22) are respectively fixedly connected to one side of the connecting ball (23) and the connecting rod (21), and the connecting rod (21) slides inside the fixing ring (24).

6. A self-locking high-voltage quick coupling device according to claim 5, characterized in that: The fixed ring (24) is rotatably disposed on the outside of the connecting cylinder (11), and the connecting slide rod (25) slides through the fixed ring (24), while the connecting block (26) slides on the inside of the fixed ring (24).

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