一种防困式箱门锁具

Abstract

本申请公开了一种防困式箱门锁具，涉及一种锁具，其包括锁座和锁盖，所述锁座具有容纳腔，锁盖转动连接在容纳腔内，所述锁盖上固定有锁钩以及锁芯，所述锁芯端部连接有锁舌，所述锁座上铰接有锁块，所述锁块包括一端用于与锁钩配合的扣钩以及另一端的解锁块，所述锁座上还铰接有将锁块围绕在内的开关座，所述开关座包括第一自由端和第二自由端，所述第一自由端用于供锁舌配合锁定，所述解锁块搭靠在第一自由端上；所述锁座上还安装有弹性件，所述弹性件作用在解锁块上，使解锁块推动开关座的第一自由端处在锁舌锁定的位置，此时，扣钩处在供锁钩锁定的位置。本申请能够提高箱门锁的安全性。

Claims

1. An anti-entrapment type lock for a box door, comprising a lock base (1) and a lock cover (2), wherein the lock base (1) has a receiving cavity, the lock cover (2) is rotatably connected to the receiving cavity, a lock hook (3) and a lock cylinder (4) are fixed on the lock cover (2), and a lock tongue (5) is connected to the end of the lock cylinder (4), characterized in that: A locking block (6) is hinged to the lock seat (1). The locking block (6) includes a hook (7) at one end for engaging with the lock hook (3) and an unlocking block (8) at the other end. A switch seat (9) is also hinged to the lock seat (1) and surrounds the locking block (6). The switch seat (9) includes a first free end (10) and a second free end (11). The first free end (10) is used for locking the bolt (5). The unlocking block (8) rests on the first free end (10). An elastic element is also installed on the lock seat (1). The elastic element acts on the unlocking block (8) so that the unlocking block (8) pushes the first free end (10) of the switch seat (9) to the position where the bolt (5) is locked. At this time, the hook (7) is in the position where the lock hook (3) is locked. The lock base (1) has an unlocking hole (18), and the unlocking block (8) is located at the unlocking hole (18).

2. A trap- proof door lock set according to claim 1, wherein: Two hinge seats (13) are fixed on the lock seat (1), and a rotating shaft (14) is connected between the two hinge seats (13). The lock block (6) and the switch seat (9) are rotatably connected to the rotating shaft (14).

3. A trap- proof door lock set according to claim 2, wherein: The elastic element includes a spring (15), which is mounted on a rotating shaft (14). The spring (15) has two force-bearing ends, one of which abuts against the lock seat (1) and the other of which abuts against the unlocking block (8).

4. A trap- proof door lock set according to claim 2, wherein: The unlocking block (8) is fixed with a tie bar (17), and the two ends of the tie bar (17) rest on the switch base (9).

5. A trap-free door lock set according to claim 3 wherein: Two springs (15) are provided, respectively fitted on both ends of the rotating shaft (14). A connecting rod (16) is fixedly connected between the force-bearing ends of the two springs (15) on the same side, and the connecting rod (16) abuts against the tie bar (17).

6. A trap-free door lock set according to claim 1, wherein: The first free end (10) of the switch base (9) is fixed with a protrusion (19) for the latch (5) to abut against, and the two ends of the protrusion (19) are provided with guide slopes (20) for the latch (5) to rotate into.

7. A trap-free door lock set according to claim 1 wherein: A pressure plate (12) is fixed to the second free end (11) of the switch base (9).

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