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US 8,650,919 B2Granted
Anti-break lock
OwnerTien-Kao Liuinventor
Life of this patent
Estimating the term…
Abstract
An anti-break lock includes a body and two rods respectively extend from two ends of the body. Two rings extend radially from the body. The body has a passage which communicates with one of the rings and the ring is engaged with an engaging block. The engaging block has a recess in which a pad is received. The passage has a resilient member and a stop pin received therein and the stop pin has a first shoulder and a second shoulder formed in two ends thereof. A contact portion extends from the second shoulder. The body has a room which communicates with the passage. A resilient piece and an engaging member are received in the room. When the lock is damaged, the contact portion is inserted into the recess and stopped by the engaging member so that it cannot move back to its initial position. The lock cannot be unlocked.
Claims14
An anti-break lock comprising:
- a case having a body and a fixing hole defined through the body, two rods respectively extending from two ends of the body and two rings extending radially from the body, an axis of the rings and an axis of the rods being parallel to each other, a space defined between the two rings and at least one anti-break locking unit;
- said anti-break locking unit comprising a passage in said body which communicates with a first ring of the two rings;
- an engaging block which is engaged with the first ring, the engaging block having a recess which is located corresponding to the passage and smaller than the passage, a pad is engaged with the recess, the passage is located at an end of the body and a resilient member and a stop pin are received in the passage, the resilient member biases the stop pin which has a first shoulder defined in a first end thereof which faces the resilient member, a second shoulder is defined in a second end of the stop pin and located corresponding to the passage and recess, a contact portion extends from the second shoulder and is located corresponding to the recess;
- and a room within the body which communicates with the passage, a resilient piece and an engaging member are received in the room, the engaging member is located corresponding to the first shoulder and biased by the resilient piece to contact the stop pin, the contact portion contacts the pad;
- when the pad is removed from the recess, the stop pin is then pushed by the resilient member to insert the contact portion into the recess, the stop pin is then removed from the room, the engaging member is biased by the resilient piece and passes through a conjunction portion between the passage and the room, the first shoulder of the stop pin is stopped by the engaging member and cannot move to its initial position.
2 more elements
An anti-break lock comprising:
- a case having a body and two rings extending radially from the body, a space defined between the two rings, the body has at least one passage which communicates with one of the rings, each ring is engaged with an engaging block, at least one engaging block has a recess which is located corresponding to the at least one passage and smaller than the at least one passage, a pad is engaged with the recess, the at least one passage of the body is located at an end of the body and a resilient member and a stop pin are received in the at least one passage, the resilient member biases the stop pin which has a first shoulder defined in a first end thereof which faces the resilient member, a second shoulder is defined in a second end of the stop pin and located corresponding to the at least one passage and the recess, a contact portion extends from the second shoulder and is located corresponding to the recess, the body has a room which communicates with the at least one passage, a resilient piece and an engaging member are received in the room, the engaging member is located corresponding to the first shoulder and biased by the resilient piece to contact the stop pin, the contact portion contacts the pad;
- when the pad is removed from the recess, the stop pin is then pushed by the resilient member to insert the contact portion into the recess, the stop pin is then removed from the room, the engaging member is biased by the resilient piece and passes through a conjunction portion between the at least one passage and the room, the first shoulder of the stop pin is stopped by the engaging member and cannot move to its initial position.
An anti-break lock comprising:
- a case having a body and a fixing hole defined through the body, two rods respectively extending from two ends of the body and two rings extending radially from the body, an axis of the rings and an axis of the rods being parallel to each other, a space defined between the two rings;
- wherein each rod has a sleeve mounted thereto which receives a core, the rings are respectively mounted to the cores, each sleeve has at least one slit and at least one core has a groove which is located corresponding to the at least one slit, the groove has a positioning plate extending therefrom and the positioning plate extends to the corresponding sleeve, the positioning plate has two notches, the positioning plate has two locking pieces on two ends thereof and the locking pieces are fixed to the notches.
Dependencies are inferred from the claim text.