CN221722522U

CN221722522U - Door lock with large bullet lock cylinder

Info

Publication number: CN221722522U
Application number: CN202420172525.2U
Authority: CN
Inventors: 李志平
Original assignee: Dongguan Jiayingfeng Automotive Products Co ltd
Current assignee: Dongguan Jiayingfeng Automotive Products Co ltd
Priority date: 2024-01-24
Filing date: 2024-01-24
Publication date: 2024-09-17
Anticipated expiration: 2034-01-24

Abstract

The utility model discloses a door lock with a large bullet lock core, which comprises a lock shell and a key, wherein a deflector rod capable of driving a lock tongue to unlock is arranged on the lock shell, the lock shell is internally provided with the lock core with a suspension sheet arrangement structure, one end of the lock core is provided with a lock hole for inserting the key, the other end of the lock core is provided with a movable connecting rod, an axial pushing mechanism for pushing the connecting rod to move and enabling the connecting rod to be clamped with the deflector rod is arranged in the lock hole, and the tail end of the key is spliced with the axial pushing mechanism when the key is inserted into the jack; according to the utility model, through the cooperation of the axial pushing mechanism and the connecting rod, when unlocking, the key is inserted into the lock hole and then pushed to move by the axial pushing mechanism, then the connecting rod is pushed to move by the axial pushing mechanism, so that the connecting rod is clamped with the deflector rod to drive the deflector rod to move, the lock tongue is driven by the deflector rod to unlock, and through the arrangement of the limiting mechanism, the key can be effectively ensured to be inserted in place, and the unlocking precision of the key is ensured.

Description

Door lock with large bullet lock core

Technical Field

The utility model relates to the technical field of locks, in particular to a door lock with a large bullet lock core.

Background

A door lock with a large bullet lock core refers to a core component in the door lock, and is usually made of metal. The lock is positioned in a slot of a door lock and used for controlling the opening and closing of the door lock, the lock cylinder is divided into a square-head lock cylinder and a round-head lock cylinder according to the appearance of the lock cylinder, the round-head lock cylinder is also provided with the name of the round-head lock cylinder, and the structure of the lock cylinder is more and more complicated in order to improve the use safety of the lock cylinder.

Through retrieval, china patent document application number is 202021641392.7, an anti-theft magnetic lock core is disclosed, the anti-theft magnetic lock core comprises a lock shell, a lock core is inserted in the lock shell, a key hole matched with a key is formed in the lock core, a plurality of first through holes are formed in the lock core, a plurality of second through holes are formed in the lock shell, the first through holes are identical to the second through holes in inner diameter, a locking device is arranged between the lock shell and the lock core, the locking device comprises a sealing block arranged at the top of the second through holes, a spring, one end of the locking device is fixedly connected with the bottom surface of the sealing block, a locking marble fixedly connected with one end of the spring, which is far away from the sealing block, a magnet block II, which is embedded on the bottom surface of the locking marble, is embedded on the key, the bottom end of the locking marble is located in the first through holes, the top end of the locking marble is located in the second through holes, the magnet block I corresponds to the magnet block II one by one, and moves upwards and moves into the second through holes completely when the key is completely inserted into the key hole; the anti-theft lock has the advantages that the anti-theft lock is not easy to pry open by a thief, and the safety is high.

However, the lock cylinder still has the following defects:

The lock core utilizes the matching of the first magnet block and the second magnet block, the locking marble is required to be moved in place to cancel the limitation of the lock core when unlocking, unlocking is realized, and the lock cannot be unlocked if the locking marble is not moved in place, so that the accuracy of unlocking by a key is not high, and therefore, the problem of the lock with the large bullet lock core is solved.

Disclosure of utility model

The utility model aims to provide a door lock with a large bullet lock core, which is characterized in that a key is inserted into a lock hole through the cooperation of an axial pushing mechanism and a connecting rod, then the axial pushing mechanism is pushed to move by the key, the axial pushing mechanism pushes the connecting rod to move, the connecting rod is clamped with a deflector rod to drive the deflector rod to move for unlocking operation, and the key can be effectively ensured to be inserted in place through the arrangement of a limiting mechanism, so that the unlocking accuracy of the key is ensured, and the problems in the background art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lock with big bullet lock core, includes lock shell and key, be provided with the driving lever that can drive the spring bolt and unblank on the lock shell, the inside of lock shell is provided with the lock core, the one end of lock core is provided with the lockhole that supplies the key to insert, just the lockhole runs through the lock core, the other end of lock core is provided with mobilizable connecting rod, the breach of stepping down that supplies the driving lever to remove has been seted up to the outer wall of lock shell, the inside of lockhole is provided with the axial pushing mechanism that supplies to promote the connecting rod and make connecting rod and driving lever joint, the tail end and the axial pushing mechanism grafting of key when the key inserts in the jack, the inside stop gear that judges that the key inserts in place that is provided with of lockhole.

Preferably, the axial pushing mechanism comprises a transmission knob and a pushing rod capable of axially moving in the transmission knob, the transmission knob is in sliding connection with the inner wall of the lock hole, and one end of the pushing rod is provided with a groove matched with the tail end of the key.

Preferably, the lock core is provided with two groups, two groups the lock core symmetry is installed inside the both ends of lock shell, and every the inside of lock core all is provided with axial pushing mechanism and connecting rod, driving lever and one of them connecting rod joint.

Preferably, the outer wall of the transmission knob is provided with a bulge, a slot for inserting the bulge is formed in one end, close to the transmission knob, of the connecting rod, the outer wall of the connecting rod is symmetrically provided with a bump, and a chute for horizontally sliding the bump is formed in the inner wall of the deflector rod.

Preferably, an installation cavity for installing the limiting mechanism is formed in the lock cylinder, and the installation cavity is communicated with the inside of the lock hole.

Preferably, the stop gear includes first spring and gag lever post, first spring one end is fixed in the inside of mounting groove, the other end at first spring is fixed to gag lever post one end, the other end of gag lever post is the arc setting, just in the arc end of gag lever post extends to the lockhole, set up the spacing groove that supplies the gag lever post arc end to get into on the key.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the cooperation of the axial pushing mechanism and the connecting rod, when unlocking, the key is inserted into the lock hole and then pushed to move by the axial pushing mechanism, then the connecting rod is pushed to move by the axial pushing mechanism, so that the connecting rod is clamped with the deflector rod to drive the deflector rod to move, the lock tongue is driven by the deflector rod to unlock, and through the arrangement of the limiting mechanism, the key can be effectively ensured to be inserted in place, and the unlocking precision of the key is ensured.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic view of an axial pushing mechanism according to the present utility model;

FIG. 5 is a schematic view of the structure of the present utility model when two keys are simultaneously installed.

In the figure: 1. a lock case; 2. a key; 3. a lock hole; 4. a lock core; 5. an axial pushing mechanism; 501. a push rod; 502. a transmission knob; 6. a limit rod; 7. a first spring; 8. a deflector rod; 9. and (5) connecting a rod.

Detailed Description

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. 1-5, the present utility model provides a technical solution: the utility model provides a lock with big bullet lock core, includes lock shell 1 and key 2, be provided with the driving lever 8 that can drive the spring bolt and unblank on the lock shell 1, the inside of lock shell 1 is provided with lock core 4, the one end of lock core 4 is provided with supplies key 2 male lockhole 3, just lockhole 3 runs through lock core 4, the other end of lock core 4 is provided with mobilizable connecting rod 9, the breach of stepping down that supplies driving lever 8 to remove is seted up to the outer wall of lock shell 1, the inside of lockhole 3 is provided with the axial pushing mechanism 5 that supplies to promote connecting rod 9 to remove and make connecting rod 9 and driving lever 8 joint, the tail end and the axial pushing mechanism 5 grafting of key 2 when key 2 inserts in the jack, lockhole 3 inside is provided with the stop gear who judges that key 2 inserts in place.

When unlocking, after the key 2 is inserted into the lock hole 3, the axial pushing mechanism 5 is pushed by the key 2, then the connecting rod 9 is pushed to move by the axial pushing mechanism 5, so that the connecting rod 9 is clamped with the deflector rod 8, the deflector rod 8 is driven to move, the lock tongue is driven by the deflector rod 8 to unlock, and the key 2 can be effectively ensured to be inserted into place through the setting of the limiting mechanism, so that the unlocking precision of the key 2 is ensured.

The axial pushing mechanism 5 comprises a transmission knob 502 and a pushing rod 501 capable of axially moving in the transmission knob 502, the transmission knob 502 is slidably connected with the inner wall of the lock hole 3, one end of the pushing rod 501 is provided with a groove matched with the tail end of the key 2, when the key 2 is inserted into the groove, the pushing rod 501 is driven to axially move in the transmission knob 502 by pushing of the key 2, the pushing rod 501 drives the connecting rod 9 to move towards the direction close to the deflector rod 8, and when the connecting rod 9 is clamped with the deflector rod 8, the connecting rod 9 and the deflector rod 8 are driven to circumferentially move by rotating the key 2 so as to stir the lock tongue by the deflector rod 8 for unlocking operation.

The lock core 4 is provided with two groups, and two groups lock core 4 symmetry is installed inside the both ends of lock shell 1, and every the inside of lock core 4 all is provided with axial pushing mechanism 5 and connecting rod 9, driving lever 8 and one of them connecting rod 9 joint, as shown in fig. 5, the inside and outside two-way unblanking of being convenient for can carry out through key 2.

The outer wall of transmission knob 502 is provided with the arch, the one end that connecting rod 9 is close to transmission knob 502 has been seted up and has been supplied protruding male slot, just the outer wall symmetry of connecting rod 9 is provided with the lug, the inner wall of driving lever 8 is provided with the spout that supplies lug horizontal slip, connecting rod 9 is the prefab, if connecting rod 9 length is 6mm as shown in fig. 2, key 2 promotes the catch bar 501 and descends 3mm when unblanking, catch bar 501 promotes connecting rod 9 again and descends 3mm, 6mm long connecting rod 9 on upper portion has 3mm just to the mid portion of driving lever 8, rotate key 2 this moment, drive transmission knob 502, transmission knob 502 drives connecting rod 9, connecting rod 9 drives driving lever 8, driving lever 8 drives the spring bolt, accomplish the action of unblanking.

The installation cavity for installing a limiting mechanism is formed in the lock cylinder 4, the installation cavity is communicated with the inside of the lock hole 3, the installation of the limiting mechanism is facilitated, and whether the key 2 is inserted into the lock hole 3 or not can be effectively judged through the setting of the limiting mechanism.

The limiting mechanism comprises a first spring 7 and a limiting rod 6, one end of the first spring 7 is fixed in the mounting groove, one end of the limiting rod 6 is fixed at the other end of the first spring 7, the other end of the limiting rod 6 is in an arc-shaped arrangement, the arc-shaped end of the limiting rod 6 extends into the lock hole 3, a limiting groove for the arc-shaped end of the limiting rod 6 to enter is formed in the key 2, the arc-shaped part of the limiting rod 6 is pushed into the mounting cavity by the pushing force of the key 2 when the key 2 is inserted, the first spring 7 is in a compressed state, the limiting groove is just located at the end of the limiting rod 6 when the key 2 is inserted in place, and the arc-shaped part of the limiting rod 6 is driven to enter the limiting groove by the resilience force of the first spring 7 at the moment, and the key 2 is inserted in place in the lock hole 3.

The lock cylinder with the suspension sheet arrangement structure is a neutron warhead lock cylinder structure in the prior art, and the application does not improve the part, so the suspension sheet arrangement structure is not described in detail.

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

1. A door lock with a large bullet lock core, comprising a lock shell (1) and a key (2), characterized in that: be provided with on lock shell (1) driving lever (8) that the spring bolt unblanked, the inside of lock shell (1) is provided with lock core (4) that have suspension row's piece structure, the one end of lock core (4) is provided with and supplies key (2) male lockhole (3), just lockhole (3) run through lock core (4), the other end of lock core (4) is provided with mobilizable connecting rod (9), the breach of stepping down that supplies driving lever (8) to remove is seted up to the outer wall of lock shell (1), the inside of lockhole (3) is provided with and supplies to promote connecting rod (9) to remove and make the axial pushing mechanism (5) of connecting rod (9) and driving lever (8) joint, the tail end and the axial pushing mechanism (5) grafting of key (2) when key (2) inserts in the jack, the inside stop gear that judges that key (2) were inserted into place that is provided with of lockhole (3).

2. A door lock with a large bullet lock core as claimed in claim 1, wherein: the axial pushing mechanism (5) comprises a transmission knob (502) and a pushing rod (501) capable of axially moving in the transmission knob (502), the transmission knob (502) is slidably connected with the inner wall of the lock hole (3), and one end of the pushing rod (501) is provided with a groove matched with the tail end of the key (2).

3. A door lock with a large bullet lock core as claimed in claim 2, wherein: the lock core (4) is provided with two groups, two groups lock core (4) symmetry install inside the both ends of lock shell (1), and every the inside of lock core (4) all is provided with axial pushing mechanism (5) and connecting rod (9), driving lever (8) and one of them connecting rod (9) joint.

4. A door lock with a large bullet lock core according to claim 3, characterized in that: the outer wall of the transmission knob (502) is provided with a bulge, a slot for the bulge to be inserted into is formed in one end, close to the transmission knob (502), of the connecting rod (9), bumps are symmetrically arranged on the outer wall of the connecting rod (9), and a chute for the bumps to horizontally slide is formed in the inner wall of the deflector rod (8).

5. A door lock with a large bullet lock core as claimed in claim 1, wherein: the lock is characterized in that an installation cavity for installing a limiting mechanism is formed in the lock cylinder (4), and the installation cavity is communicated with the inside of the lock hole (3).

6. A door lock with a large bullet lock core as claimed in claim 5, wherein: stop gear includes first spring (7) and gag lever post (6), the inside at the mounting groove is fixed to first spring (7) one end, the other end at first spring (7) is fixed to gag lever post (6) one end, the other end of gag lever post (6) is the arc setting, just in the arc end of gag lever post (6) extends to lockhole (3), set up the spacing groove that supplies gag lever post (6) arc end to get into on key (2).