CN220267418U

CN220267418U - Lock core structure of door lock

Info

Publication number: CN220267418U
Application number: CN202321396570.8U
Authority: CN
Inventors: 黄利明
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-03
Filing date: 2023-06-03
Publication date: 2023-12-29
Anticipated expiration: 2033-06-03

Abstract

The utility model discloses a lock core structure of a door lock, and particularly relates to the technical field of door locks, which comprises a lock core body, wherein the lock core body comprises a main cover and a cover plate which are mutually installed and covered, one end in the main cover is rotationally connected with a shifting head, the lock core further comprises a rack arranged on one side of the shifting head and a spring II for resetting after the rack moves, the rack is meshed with a combining tooth on the side wall of the shifting head, one end, far away from the shifting head, of the main cover is movably provided with a lock tongue, a sliding block is connected between the shifting head and the lock tongue in a sliding manner, the lock tongue is pulled to move towards the inner direction of the main cover through the sliding block when the shifting head rotates, one side of the shifting head is provided with a shifting block, the shifting block is positioned in the groove, and the main cover is further provided with a spring I for resetting after the sliding block moves. According to the utility model, the spring II is adopted to push the rack to linearly move so as to realize resetting after the shifting head rotates, so that the installation of parts is simpler, and the structure is more compact.

Description

Lock core structure of door lock

Technical Field

The utility model relates to the technical field of door locks, in particular to a lock cylinder structure of a door lock.

Background

The lock core is a main part for controlling the opening of the lock, the lock core is used for controlling the operation of a lock body, the lock body is responsible for opening and locking doors and windows, the key function is to transmit torsion by the head, and other parts of the lock are driven to achieve the purposes of unlocking and locking. The types of lock cylinders are various, and the modes of transmitting torsion are different although the structures are different, but the functions are the same.

The shifting block is an important part in the lock cylinder, and when the door handle is turned to open the door, the shifting block rotates, so that the lock tongue can be driven to move in the lock cylinder. Because the shifting block is rotated, the mode of rotating reset is adopted at present, but the structure at the shifting block position is more complicated by the mode of rotating reset, and the transmission structure of the shifting block driving bolt is arranged at the position at one side of the lock cylinder, so that the problem of incompact structure is caused.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a lock cylinder structure of a door lock adopting linear movement to reset a shifting block.

In order to achieve the above purpose, the utility model provides a lock cylinder structure of a door lock, which comprises a lock cylinder body, wherein the lock cylinder body comprises a main cover and a cover plate which are mutually installed and covered, one end in the main cover is rotationally connected with a shifting head, the lock cylinder structure also comprises a rack arranged on one side of the shifting head and a spring II for resetting after the rack moves, and the rack is meshed with a combining tooth on the side wall of the shifting head.

Preferably, one end of the main cover, which is far away from the shifting head, is movably provided with a lock tongue, a sliding block connected with the main cover in a sliding way is arranged between the shifting head and the lock tongue, and the shifting head pulls the lock tongue to move towards the inner direction of the main cover through the sliding block when rotating.

Preferably, one side of the shifting block is provided with a shifting block, one side of the sliding block is provided with a groove, the shifting block is positioned in the groove, and the main cover is also provided with a first spring for resetting after the sliding block moves.

Preferably, one side of the lock tongue is provided with a connecting block, one end of the sliding block, which is close to the lock tongue, is provided with a pressing block, and the sliding block pulls the connecting block through the pressing block so that the lock tongue moves towards the inner direction of the main cover.

Preferably, the lock tongue is connected with the main cover through a tension spring.

Preferably, the poking head is provided with a square hole, one side of the poking head is connected with a pressing piece in a threaded mode, and the pressing piece is used for propping and pressing a door handle arranged in the square hole.

The utility model has the technical effects and advantages that:

the spring II is adopted to push the rack to linearly move so as to reset the shifting head after rotation, so that the installation of parts is simpler, and the structure is more compact.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment.

Fig. 2 is a schematic diagram of the internal structure of the lock cylinder body when the lock tongue is removed.

Fig. 3 is a schematic diagram of the internal structure of the lock core body when the lock tongue is removed.

Fig. 4 is a schematic view of the internal structure of the lock cylinder body when the lock tongue is not removed.

The reference numerals are:

1. a lock cylinder body; 3. a main cover; 4. a cover plate; 5. a poking head; 51. square holes; 52. a shifting block; 53. a coupling tooth; 6. a bolt; 61. a connecting block; 7. a slide block; 71. a groove; 72. briquetting; 8. a first spring; 9. a rack; 91. a second spring; 100. a pressing member; 110. a tension spring; 200. door leaf frame; 201. and (5) mounting holes.

Detailed Description

Examples

As shown in fig. 1 to 4, the present embodiment further provides a lock core structure of a door lock, including a lock core body 1, where the lock core body 1 includes a main cover 3 and a cover plate 4 that are mounted and covered with each other, one end inside the main cover 3 is rotationally connected with a shift head 5, and further includes a rack 9 disposed on one side of the shift head 5 and a second spring 91 for restoring after the movement of the rack 9, where the rack 9 is meshed with a combination tooth 53 on a side wall of the shift head 5.

When the door is opened, the poking head 5 rotates, the poking head 5 drives the rack 9 to move, and the second spring 91 is compressed. When the door handle is released after the door is opened, the second spring 91 pushes the rack 9 to drive the shift head 5 to rotate reversely, so that the shift head 5 is reset. The spring II 91 is adopted to push the rack 9 to linearly move so as to reset the rotating shifting head 5, so that the installation of parts is simpler, and the structure is more compact.

In this embodiment, as shown in fig. 2-4, a lock tongue 6 is movably mounted at one end of the main cover 3 away from the dial head 5, a sliding block 7 is slidably connected with the main cover 3 between the dial head 5 and the lock tongue 6, and when the dial head 5 rotates, the lock tongue 6 is pulled by the sliding block 7 to move toward the inside of the main cover 3. One side of the shifting block 5 is provided with a shifting block 52, one side of the sliding block 7 is provided with a groove 71, the shifting block 52 is positioned in the groove 71, and the main cover 3 is also provided with a first spring 8 for resetting after the sliding block 7 moves. After the sliding block 7 pulls the lock tongue 6, the spring I8 is reset, one end of the spring I8 props against the sliding block 7, and the other end props against the main cover 3. One side of the lock tongue 6 is provided with a connecting block 61, one end of the sliding block 7 close to the lock tongue 6 is provided with a pressing block 72, and the sliding block 7 pulls the connecting block 61 through the pressing block 72 so as to enable the lock tongue 6 to move towards the inner direction of the main cover 3, namely, as shown in fig. 3. A rack 9 is arranged on one side of the shifting head 5, and a second spring 91 for resetting after the rack 9 moves is arranged on one side of the shifting head, and the rack 9 is meshed with the combining teeth 53 on the side wall of the shifting head 5. When the poking head 5 rotates, the rack 9 is driven to move, the second spring 91 is compressed, and the second spring 91 and the rack 9 are used for resetting after the poking head 5 rotates. The tongue 6 is connected to the main cover 3 by a tension spring 110. The purpose of the tension spring 110 is to pull the tongue 6 after the tongue 6 moves into the main cover 3 so that the tongue 6 does not shake. The poking head 5 is provided with a square hole 51, one side of the poking head 5 is connected with a pressing piece 100 in a threaded mode, and the pressing piece 100 is used for pressing a door handle installed in the square hole 51 so as to ensure that the door handle cannot shake after being installed.

Working principle: as shown in fig. 1 and 4, at this time, the latch tongue 6 extends out of the main cover 3, and the tension spring 110 is in a stretched state, and it should be noted that, the latch tongue 6 is removed out of the main cover 3 due to the magnet provided on the door frame being sucked out, the magnet is enough to overcome the pulling force of the tension spring 110, that is, the door is locked at this time. When the door is opened, the door handle is turned, and the door handle drives the poking head 5 to rotate. When the shifting head 5 rotates, on one hand, the shifting block 52 positioned in the groove 71 pushes the sliding block 7 to move, so that the pressing block 72 on the sliding block 7 pushes the connecting block 61 to pull the lock tongue 6 towards the inner direction of the main cover 3, and at the moment, the first spring 8 is compressed; on the other hand, the shift head 5 drives the rack 9 to move, and the second spring 91 is compressed. When the door handle is released after the door is opened, the second spring 91 pushes the rack 9 to drive the shifting head 5 to rotate reversely, so that the shifting head 5 is reset, and the first spring 8 also pushes the sliding block 7 to move and reset. I.e. the door opening is completed.

Claims

1. The utility model provides a lock core structure of lock, includes lock core body (1), and lock core body (1) are including main lid (3) and apron (4) that mutually install the lid and close, the inside one end rotation of main lid (3) is connected with plectrum (5), its characterized in that: the novel gear shifting device is characterized by further comprising a rack (9) arranged on one side of the shifting head (5) and a second spring (91) used for resetting after the rack (9) moves, wherein the rack (9) is meshed with the combining teeth (53) on the side wall of the shifting head (5).

2. The lock cylinder structure of a door lock according to claim 1, wherein: the novel automatic pulling device is characterized in that a lock tongue (6) is movably mounted at one end, far away from the poking head (5), of the main cover (3), a sliding connection sliding block (7) is arranged between the poking head (5) and the lock tongue (6) and is connected with the main cover (3) in a sliding mode, and the lock tongue (6) is pulled to move towards the inner direction of the main cover (3) through the sliding block (7) when the poking head (5) rotates.

3. The lock cylinder structure of a door lock according to claim 2, wherein: one side of the shifting block (5) is provided with a shifting block (52), one side of the sliding block (7) is provided with a groove (71), the shifting block (52) is positioned in the groove (71), and the main cover (3) is also provided with a first spring (8) for resetting after the sliding block (7) moves.

4. A lock cylinder structure of a door lock according to claim 3, wherein: one side of the lock tongue (6) is provided with a connecting block (61), one end, close to the lock tongue (6), of the sliding block (7) is provided with a pressing block (72), and the sliding block (7) pulls the connecting block (61) through the pressing block (72) so that the lock tongue (6) moves towards the inner direction of the main cover (3).

5. A cylinder structure of a door lock according to any one of claims 2 to 4, wherein: the lock tongue (6) is connected with the main cover (3) through a tension spring (110).

6. The lock cylinder structure of a door lock according to claim 5, wherein: the poking head (5) is provided with a square hole (51), one side of the poking head (5) is connected with a pressing piece (100) in a threaded mode, and the pressing piece (100) is used for pressing a door handle arranged in the square hole (51).