CN220267416U - Single-opening self-locking lock - Google Patents

Abstract

The utility model discloses a single-opening self-locking lock, which comprises a lock shell and a lock cylinder positioned in the lock shell, wherein the lock cylinder comprises an inner lock cylinder mechanism, a locking knob mechanism and an unlocking mechanism, the inner lock cylinder mechanism comprises an inner lock cylinder and a locking piece which is arranged on the inner lock cylinder and is used for locking with the locking knob mechanism, the locking knob mechanism comprises a knob shaft, a clamping piece which is arranged on the knob shaft and is used for clamping the locking piece, and the unlocking mechanism comprises a knob for driving the locking piece to be separated from the clamping piece and an unlocking spring which is used for connecting the knob with the knob shaft. When the outer end of the lock core is damaged, the lock core is locked from the inside under the interaction of the knob shaft at the inner end. The thumb wheel can not rotate to can't unblank, guarantee indoor personnel's safety, when being in the secure environment, indoor personnel also can easily unblank.

Description

Single-opening self-locking lock

Technical Field

The utility model relates to the technical field of door locks, in particular to a single-opening self-locking lock.

Background

The inside and outside of the existing door lock can be opened by a key, and when the door lock is forcibly opened from the outside by other people, and the outer end of the lock cylinder is damaged, the door lock cannot be opened by the personnel in the house.

Disclosure of Invention

The utility model aims to provide a single-opening self-locking lock.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a singly open self-locking formula lock, includes the lock shell to and be located the lock core of lock shell, the lock core includes interior lock core mechanism, the dead knob mechanism of lock and unlocking mechanism, interior lock core mechanism includes interior lock core, and is provided with including on the lock core and be used for with the dead retaining member of locking knob mechanism lock, the dead knob mechanism of lock includes the knob axle, and set up on the knob axle and be used for the joint retaining member's joint piece, unlocking mechanism includes the knob that the drive retaining member breaks away from the joint piece, is used for connecting the unlocking spring of knob and knob axle, and is used for the pin axle of butt lock shell and joint piece.

Further, the locking member includes a drive spring radially disposed on the inner cylinder and an inner connecting pin disposed at the other end of the drive spring.

Further, the clamping piece comprises an inner lock cylinder spring for connecting the rotating shaft and the inner lock cylinder, and a U-shaped groove formed in one side, close to the inner lock cylinder mechanism, of the rotating shaft, and the U-shaped groove is embedded with the inner connecting pin.

Further, an inner lock cylinder sleeve is sleeved on the outer side of the inner lock cylinder spring, and a connecting pin is arranged between the inner lock cylinder sleeve and the knob shaft.

Further, a screw is provided between the knob and the knob shaft.

According to the technical scheme, the utility model has the following beneficial effects:

when the outer end of the lock core is damaged, the lock core is locked from the inside under the interaction of the knob shaft at the inner end. The thumb wheel can not rotate to can't unblank, guarantee indoor personnel's safety, when being in the secure environment, indoor personnel also can easily unblank.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is a schematic diagram of the whole lock core splitting structure of the present utility model.

In the figure: 1. a lock case; 2. a lock core; 211. an inner lock core; 212. a transmission spring; 213. an inner connecting pin; 221. a knob shaft; 222. an inner lock core spring; 223. a U-shaped groove; 231. a knob; 232. an unlocking spring; 233. a pin shaft; 3. an inner lock core sleeve; 4. a connecting pin; 5. and (5) a screw.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the utility model provides a single-opening self-locking lock, which comprises a lock shell 1 and a lock cylinder 2, wherein the lock cylinder 2 is positioned in the lock shell 1, the lock cylinder 2 comprises an inner lock cylinder mechanism, a locking knob mechanism and an unlocking mechanism which are sequentially and horizontally connected, the inner lock cylinder mechanism comprises an inner lock cylinder 211 and a locking piece arranged on the inner lock cylinder, the locking piece comprises a transmission spring 212 and an inner connecting pin 213, the transmission spring 212 is vertically arranged on the inner lock cylinder, and the inner connecting pin 213 is arranged at the other end of the transmission spring.

The locking knob mechanism comprises a knob shaft 221 and a clamping piece which is arranged on the knob shaft and is used for clamping a locking piece, the clamping piece comprises an inner lock cylinder spring 222 and a U-shaped groove 223, one end of the inner lock cylinder spring 222 is connected with a rotating shaft 221, the other end of the inner lock cylinder spring is connected with an inner lock cylinder 211, the U-shaped groove 223 is arranged on one side, close to the inner lock cylinder mechanism, of the rotating shaft, and the U-shaped groove 223 is embedded with the inner connecting pin 213. An inner lock cylinder sleeve 3 is sleeved outside the inner lock cylinder spring 222, a connecting pin 4 is vertically arranged between the inner lock cylinder sleeve 3 and the knob shaft 221, and the inner lock cylinder sleeve 3 and the knob shaft 221 are fixed through the connecting pin 4.

The unlocking mechanism comprises a knob 231, an unlocking spring 232 and a pin shaft 233, wherein one end of the unlocking spring 232 is connected with the knob 231, and the other end of the unlocking spring 232 is connected with the knob shaft 221. A screw 5 is provided between the knob 231 and the knob shaft 221, the inner knob 231 and the knob shaft 221 are fixed by the screw 5, a pin shaft 233 is provided vertically, and one end of the pin shaft abuts against the lock case and the other end abuts against the knob shaft.

Working principle: when the lock body is hard damaged, a breakable groove on the lock body is broken, the left part of the whole lock body can fall off, namely the right part of the breakable groove can be left in the lock body, in the scheme, the inner lock cylinder 211 and the inner lock cylinder sleeve 3 can move forwards for a certain distance under the action of the spring of the inner lock cylinder spring 222, then the unlocking spring 232 drives the knob shaft 221 to move forwards for a small distance, when the inner lock cylinder 211 and the inner lock cylinder sleeve 3 move forwards, the pin shaft 233 can fall under the action of the spring force, at the moment, the inner lock cylinder 211 exposed outside can only be rotated to unlock, the inner lock cylinder 211 is rotated to enable the pin shaft 233 to fall into the U-shaped groove 223 of the knob shaft 221, at the moment, unlocking cannot be carried out outside, and the whole lock body is locked; when the danger is relieved, the knob 231 is dragged in the house, the knob 231 can drive the knob shaft 221 to move back and forth, at this time, the pin shaft 233 can be separated from the U-shaped groove of the knob shaft 221, and at this time, the unlocking can be rotated.

When the outer end of the lock cylinder is damaged, the inner end knob shaft is interacted, so that the lock cylinder is locked from the inside. The thumb wheel can not rotate to can't unblank, guarantee indoor personnel's safety, when being in the secure environment, indoor personnel also can easily unblank.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a singly open self-locking formula lock, includes lock shell (1) to and be located lock core (2) of lock shell, its characterized in that, lock core (2) include interior lock core mechanism, lock dead knob mechanism and unlocking mechanism, interior lock core mechanism includes interior lock core (211), and be provided with on the lock core and be used for with the dead retaining member of lock knob mechanism lock, lock dead knob mechanism includes knob axle (221), and set up on the knob axle and be used for the joint retaining member's joint piece, unlocking mechanism includes that the drive retaining member breaks away from knob (231) of joint piece, is used for connecting unlocking spring (232) of knob and knob axle, and is used for pin axle (233) of butt lock shell and joint piece.

2. A single-release self-locking lock as claimed in claim 1, wherein: the locking member includes a drive spring (212) radially disposed on the inner cylinder and an inner connecting pin (213) disposed at the other end of the drive spring.

3. A single-release self-locking lock as claimed in claim 2, wherein: the clamping piece comprises an inner lock cylinder spring (222) for connecting the rotating shaft and the inner lock cylinder, and a U-shaped groove (223) formed in one side, close to the inner lock cylinder mechanism, of the rotating shaft, and the U-shaped groove (223) is embedded with the inner connecting pin (213).

4. A single-release self-locking lock according to claim 3, wherein: an inner lock cylinder sleeve (3) is sleeved on the outer side of the inner lock cylinder spring (222), and a connecting pin (4) is arranged between the inner lock cylinder sleeve (3) and the knob shaft (221).

5. A single-release self-locking lock as claimed in claim 1, wherein: a screw (5) is arranged between the knob (231) and the knob shaft (221).