Lock facilitating double-locking from outside

A lock facilitating double-locking from the outside, comprising a cylinder, a cylinder follower arranged at a front end of the cylinder, and a bolt component connected with the cylinder follower;

• and further comprising a rotating handle;
• a fixing part fixedly connected with an external supporting surface, the rotating handle being able to rotate relative to the fixing part;
• a rotating part fixedly connected with the rotating handle and movably connected with the fixing part,
• a stopper arranged on the fixing part, moveably connected with the rotating part, and used for limiting a rotation angle of the rotating part relative to the fixing part;
• and
• an adapter moveably connected with the rotating part, connected with the cylinder follower, and moving with the cylinder follower, wherein when the rotating part rotates, the adapter is pushed to rotate, so as to drive the cylinder follower to rotate to realize double-locking,
• wherein the cylinder follower is arranged in an axial direction of the rotating handle, the fixing part and rotating part are both provided with axial through holes, and the fixing part, the rotating part and the adapter are all sleeved on the cylinder follower,
• wherein the rotating handle is cylindrical, with an opening at one end and a scaling end plate at the other end,
• wherein the rotating part comprises a main body, a cylindrical body arranged on one surface of the main body, and an arc-shaped section with an arc-shaped cross profile arranged on an inner wall of the cylindrical body, an arc-shaped limiting groove is also formed in the surface of the main body, and the limiting groove is located outside the cylindrical body,
• wherein the fixing part is in the shape of a disc, a circular counter bore is formed in one surface of the fixing part, the cylindrical body is sleeved with a bearing, the main body of the rotating part is embedded in the circular counter bore, the bearing is embedded in the axial through hole of the fixing part, and the rotating part can rotate relative to the fixing part.

A lock facilitating double-looking from the outside, comprising a cylinder, a cylinder follower arranged at a front end of the cylinder, and a bolt component connected with the cylinder follower, and further comprising a rotating, handle;

• a fixing part fixedly connected with an external supporting surface, the rotating handle being able to rotate relative to the fixing part;
• a rotating part fixedly connected with the rotating handle and movably connected with the fixing part;
• stopper arranged on the fixing part, movably connected with the rotating part, and used for limiting a rotation angle of the rotating part relative to the fixing part;
• and
• an adapter moveably connected with the rotating part, connected with the cylinder follower, and moving with the cylinder follower, wherein when the rotating part rotates the adapter is pushed to rotate, so as to drive the cylinder follower to rotate to realize double-locking,
• wherein the cylinder follower is arranged in an axial direction of the rotating handle, the fixing part and the rotating part are both provided with axial through holes, and the fixing part, the rotating part and the adapter all sleeved the cylinder follower,
• wherein the rotating handle is cylindrical, with an opening one end and a sealing end plate at the other end,
• wherein the rotating part comprises a main body, a cylindrical body arranged on one surface of the ma in body, and an arc-shaped section with an arc-shaped cross profile arranged on an inner wall of the cylindrical body, an arc-shape limiting groove is also formed in the surface of the main body, and the limiting groove is located outside the cylindrical body,
• wherein the rotating handle is provided with two connecting columns parallel to the axial direction of the rotating handle inside, the connecting columns are provided with axial threaded holes inside, and the main body of the rotating part is fixed on the two connecting columns by two screws.