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CN-224228396-U - Anti-seizing lock core

CN224228396UCN 224228396 UCN224228396 UCN 224228396UCN-224228396-U

Abstract

The lock cylinder comprises a lock shell, a lock liner arranged in the lock shell and a tail ruler component connected in the lock shell, wherein a clutch component which enables the lock liner to be separated from or combined with the tail ruler component is arranged between the lock liner and the tail ruler component, a key hole is formed in the lock liner, when a key is not inserted into the key hole, the tail ruler component is separated from the clutch component and the lock liner, when the key is inserted into the key hole, the clutch component is gradually pushed into the tail ruler component by the key, the key is rotated, the lock liner, the clutch component and the tail ruler component can coaxially and synchronously rotate, and the clutch component is in circumferential limit fit with the lock liner and the tail ruler component through a circumferential limit structure. Because the effect of separation and reunion subassembly, tail chi subassembly and lock courage are in the state that is in mutually, even have the invasion of foreign matter in the key hole, plug up the key hole, and tail chi subassembly still can idle running, has avoided traditional lock core to burn or the part damage because of the motor that the foreign matter leads to effectively, solves the indoor unable problem of unblanking that forgets to pull out the key and leads to simultaneously.

Inventors

  • TANG WEI

Assignees

  • 中山市瑞盾五金有限公司

Dates

Publication Date
20260512
Application Date
20250528

Claims (7)

  1. 1. The lock cylinder is characterized by comprising a lock shell (1), a lock liner (2) arranged in the lock shell (1) and a tail ruler component (3) connected in the lock shell (1), wherein a clutch component (4) which enables the lock liner (2) to be separated from or combined with the tail ruler component (3) is arranged between the lock liner (2) and the tail ruler component (3), a key hole (21) is formed in the lock liner (2), when a key (100) is not inserted into the key hole (21), the tail ruler component (3), the clutch component (4) and the lock liner (2) are separated, and when the key (100) is inserted into the key hole (21) to gradually push the clutch component (4) to enter the tail ruler component (3), the key (100) is rotated, so that the lock liner (2), the clutch component (4) and the tail ruler component (3) can coaxially and synchronously rotate, and the clutch component (4) is in circumferential limit fit with the lock liner (2) and the tail ruler component (3) through a circumferential limit structure.
  2. 2. The lock cylinder according to claim 1, wherein the clutch assembly (4) comprises a shaft sleeve (41), a pin shaft (42) movably sleeved in the shaft sleeve (41) and coaxially arranged with the shaft sleeve (41), and a spring (43) arranged on the tail ruler assembly (3) and used for driving the shaft sleeve (41) and the pin shaft (42) to axially move towards the lock cylinder (2).
  3. 3. The anti-lock cylinder according to claim 2, wherein the shaft sleeve (41) comprises a first accommodating cavity (411) for accommodating the pin shaft (42), an annular inner ring (412) is arranged in the first accommodating cavity (411), a through hole (413) for the pin shaft (42) to pass through is formed in the middle of the annular inner ring (412), the pin shaft (42) comprises a pin shaft head (421) and a pin shaft rod (422), the diameter of the pin shaft head (421) is larger than that of the pin shaft rod (422) and the through hole (413), the diameter of the pin shaft rod (422) is smaller than that of the through hole (413), and the pin shaft rod (422) is arranged in the through hole (413) in a penetrating mode.
  4. 4. The lock cylinder of claim 3, wherein the tail rule assembly (3) comprises a tail rule (31) and a tail rule connecting piece (32) connected with the tail rule (31), the tail rule connecting piece (32) is in circumferential limit fit with the tail rule (31) and drives the tail rule (31) to coaxially rotate, a second accommodating cavity (321) for accommodating a spring (43) is formed in one end, facing the lock cylinder (2), of the tail rule connecting piece (32), and the clutch assembly (4) can axially move in the second accommodating cavity (321).
  5. 5. The lock cylinder of claim 4, wherein the circumferential limiting structure comprises a protruding strip (414) arranged on the outer side wall of the shaft sleeve (41) and a clamping groove (200) which is respectively arranged in the second accommodating cavity (321) and the lock liner (2) and used for inserting and limiting the protruding strip (414), and the protruding strip (414) is transversely extended and arranged on the side wall of the shaft sleeve (41).
  6. 6. The lock cylinder of claim 5, wherein the tail ruler connecting piece (32) is provided with a slot (322) towards one side of the tail ruler (31), the tail ruler (31) is inserted into the slot (322) and is fixedly connected with the tail ruler connecting piece (32) through a connecting shaft (33), and the tail ruler (31) is provided with a connecting hole (311) for the connecting shaft (33) to pass through.
  7. 7. The lock cylinder according to claim 1, wherein the lock cylinder (2) comprises two groups of blade grooves (22) symmetrically formed in the side wall of the lock cylinder and blades (23) inserted into the blade grooves (22), the blades (23) can move in the blade grooves (22), a third accommodating cavity (24) for accommodating the clutch assembly (4) is formed in one side, facing the clutch assembly (4), of the lock cylinder (2), and the clutch assembly (4) can axially move in the third accommodating cavity (24).

Description

Anti-seizing lock core Technical Field The utility model relates to the field of lock cylinders, in particular to an anti-locking lock cylinder. Background The intelligent lock core in the current market generally adopts a dual mode of combining mechanical unlocking and electric unlocking, wherein the mechanical unlocking is realized by inserting a key into a lock liner, driving the lock liner to rotate and linking a tail ruler assembly, finally driving a lock tongue or a shifting sleeve to unlock, and the electric unlocking is realized by driving the tail ruler assembly to rotate through a motor. The core linkage parts of the two modes are a lock liner and a tail ruler component, the lock liner and the tail ruler component are reliably connected when the lock is mechanically unlocked, and the lock liner and the tail ruler component independently operate when the lock is electrically unlocked. When a key is not inserted into a traditional lock cylinder, the lock liner and the tail rule assembly can be accidentally contacted or blocked due to structural gaps, foreign matters entering a key hole and the like, so that the tail rule assembly cannot freely rotate. For example, the foreign matter may push the lock cylinder after being inserted into the key hole, so that the foreign matter interferes with the tail ruler assembly in the circumferential direction, so that the tail ruler idles or is blocked during electric unlocking, and the motor is damaged or the lock cylinder is scrapped in severe cases. Secondly, when the key is inserted and drives the lock liner to rotate, the traditional structure relies on a spring or friction force to realize the connection of the lock liner and the tail ruler component, and slipping, idling or overload abrasion easily occurs. For example, when the key is not fully inserted, the lock cylinder and the tail rod assembly may be partially meshed, so that power transmission is invalid during rotation, and after the key is pulled out, if the lock cylinder and the tail rod assembly are not completely separated, the electric unlocking efficiency may be reduced or blocked due to residual resistance. Therefore, it is necessary to provide an anti-seizing lock cylinder, which can realize complete separation of the lock liner and the tail ruler component in a normal state, ensure free rotation of an electric mode, and ensure reliable power transmission by precise synchronous linkage during mechanical unlocking, and simultaneously avoid seizing and idle running caused by foreign matter interference or structural gaps. Disclosure of utility model The utility model overcomes the defects of the technology and provides the lock cylinder capable of preventing the lock from being blocked. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The lock cylinder comprises a lock shell, a lock liner arranged in the lock shell and a tail ruler component connected in the lock shell, wherein a clutch component which enables the lock liner to be separated from or combined with the tail ruler component is arranged between the lock liner and the tail ruler component, a key hole is formed in the lock liner, when a key is not inserted into the key hole, the tail ruler component is separated from the clutch component and the lock liner, when the key is inserted into the key hole, the clutch component is pushed into the tail ruler component gradually, the key is rotated, the lock liner, the clutch component and the tail ruler component can coaxially and synchronously rotate, and the clutch component is in circumferential limit fit with the lock liner and the tail ruler component through a circumferential limit structure. Further, the clutch assembly comprises a shaft sleeve, a pin shaft which is movably sleeved in the shaft sleeve and is coaxially arranged with the shaft sleeve, and a spring which is arranged on the tail ruler assembly and is used for driving the shaft sleeve and the pin shaft to axially move towards the lock liner. Further, the axle sleeve is including the first chamber that holds that is used for holding the round pin axle, first intracavity that holds is equipped with annular inner circle, annular inner circle middle part is equipped with the through-hole that supplies the round pin axle to pass through, the round pin axle includes round pin spindle nose and round pin axle pole, round pin spindle nose diameter is greater than the diameter of round pin axle pole and through-hole, the diameter of round pin axle pole is less than the diameter of through-hole, the round pin axle pole wears to locate in the through-hole. Further, the tail chi subassembly includes tail chi and the tail chi connecting piece of being connected with the tail chi, tail chi connecting piece and the spacing cooperation of tail chi circumference drive the coaxial rotation of tail chi, the one end that the tail chi connecting piece orientation lock courage is provided wi