CN215407914U

CN215407914U - Spring lock core

Info

Publication number: CN215407914U
Application number: CN202121656919.8U
Authority: CN
Inventors: 戴益弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-01-04
Anticipated expiration: 2031-07-20

Abstract

The utility model relates to a pin tumbler lock core, which comprises a lock core sleeve, wherein a lock core is rotated in the lock core sleeve, at least two groups of first pin tumbler holes are formed in the peripheral surface of the lock core sleeve, a plurality of second pin tumbler holes are formed in the lock core and correspond to the first pin tumbler holes, first pin tumblers are arranged in the first pin tumbler holes in a sliding mode, springs enabling the first pin tumblers to slide towards the lock core are further arranged, second pin tumblers are arranged in the second pin tumbler holes in a sliding mode, a coaxial first keyway is formed in the lock core, a plurality of second keyway holes are formed in the lock core and distributed on the periphery of the first keyway, the second keyway holes are communicated with the first keyway holes, the axes of the second keyway holes are arranged in parallel to the axis of the first keyway holes, the second pin tumbler holes are communicated with the second keyway holes, and one end, far away from the lock core sleeve, of the second pin tumblers is located in the second keyway holes. By adopting the technical scheme, the shapes of the key hole passages are different, so that the spring lock core can be effectively prevented from being prized.

Description

Spring lock core

Technical Field

The utility model relates to the field of locks, in particular to a spring lock core.

Background

The lock is used for preventing theft, and the anti-theft grade of the lock is defined by the structure of the lock cylinder.

The most widely applied common spring lock core in the lock core mainly comprises a lock core, a lock core shaft is arranged in the lock core in a rotating mode, a plurality of radial spring holes are formed in the lock core and the lock core shaft, the spring holes of the lock core correspond to the spring holes of the lock core shaft one by one, first springs are placed in the spring holes of the lock core, second springs are placed in the spring holes of the lock core shaft, and springs are further arranged in the spring holes of the lock core so that the first springs are tightly attached to the second springs.

One end of the first marble, facing the lock core shaft, on the lock core is inserted into the marble hole of the lock core shaft under the action of the spring so as to lock the lock core shaft and realize locking of the marble lock core;

the lock core shaft is provided with a key hole channel, one end of the second marble, which is far away from the lock core, is exposed in the key hole channel, after a matched key is inserted into the key hole channel, the second marble in the marble hole of the lock core shaft can be extruded by the key hole of the key and moves towards the direction of the first marble, so that each first marble can retract into the marble hole on the lock core, the contact surface formed by each first marble and the corresponding second marble falls into the gap between the lock core and the lock core shaft, the key rotates, the lock core shaft is driven by the key to rotate in the lock core, and the unlocking of the marble lock core is realized.

However, the keyway on the existing lock core shaft is flat, and one end of the second pin tumbler is exposed in the keyway, so that the second pin tumbler is easy to be picked by an object such as an iron wire which can be inserted into the keyway or unlocked by inserting a master key.

Disclosure of Invention

The purpose of the utility model is as follows: in order to overcome the defects of the prior art, the utility model provides a spring lock core, which has different keyhole ways and can effectively prevent the spring lock core from being prized.

The technical scheme of the utility model is as follows: a pin tumbler lock core comprises a lock core sleeve, a lock core is rotated in the lock core sleeve, at least two groups of first pin tumbler holes are arranged on the outer peripheral surface of the lock core sleeve, the first pin tumbler holes in each group are distributed along the axis of the lock core sleeve, a plurality of second pin tumbler holes which are arranged corresponding to the first pin tumbler holes are arranged on the lock core, the first pin tumbler holes are internally provided with first pin tumblers in a sliding manner, and are also provided with springs which enable the first pin tumblers to slide towards the lock core, second pin tumblers are internally provided with second pin tumblers in a sliding manner, the lock core is provided with a coaxial first keyway, the pin tumbler lock core is characterized in that a plurality of second keyway holes are arranged on the outer periphery of the first keyway holes, the plurality of second keyway holes are communicated with the first keyway holes, the axes of the plurality of second keyway holes are arranged in parallel to the axis of the first keyway holes, and the plurality of second pin tumbler holes are communicated with the plurality of second keyway holes, and one end of the second pin far away from the lock cylinder sleeve is positioned in the second keyway.

By adopting the technical scheme, the second spring hole is communicated with the second keyway, the second springs are positioned in the second keyway, and the second keyway is provided with a plurality of second keyways, so that the spring lock cylinder can be prevented from being prized by a technology.

The utility model further provides that: the second key hole channels are square hole channels, two adjacent second key hole channels are perpendicular to each other, and the second key hole channels can be arranged in a square shape in an enclosing mode.

By adopting the above further arrangement, the lock core is convenient to be provided with the second keyway and the first keyway, and the second keyway is a square hole, so that the blade of the key inserted into the second keyway is square, the situation that a master key on the market is inserted into the keyway of the spring lock core can be avoided, the production cost is reduced, and the economic benefit is improved.

The utility model further provides that: the second keyway is an arcuate channel.

By adopting the above further arrangement, the blade of the key inserted into the second keyway is arc-shaped, and the keyway on the key is positioned on the arc-shaped blade because one end of the second pin tumbler is positioned in the second keyway, so that a master key on the market cannot be inserted into the keyway of the pin tumbler lock cylinder to unlock.

The utility model further provides that: the second keyway and the first keyway are arranged in a square shape, and the second keyway and the communicating part form an L-shaped arrangement.

By adopting the above further arrangement, the key hole channel of the spring lock core is provided with the convex ribs, the spring lock core is further prevented from being prized by the technology, the first key hole channel, the second key hole channel and the communicating part are convenient to manufacture by the lock core, keys which can be simultaneously inserted into the first key hole channel and the second key hole channel are produced, the production cost is reduced, and the economic benefit is improved.

Drawings

FIG. 1 is an exploded view of an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an embodiment of the present invention;

FIG. 5 is a lock cylinder block diagram of a specific embodiment of the present invention;

fig. 6 is a lock cylinder structure diagram of the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the description in the present invention as referring to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary that a person skilled in the art can realize the technical solutions, and when the technical solutions are contradictory or cannot be realized, such a combination of the technical solutions should be considered to be absent and not within the protection scope of the present invention.

As shown in fig. 1-6, the night lock core of the present invention comprises a lock core sleeve 1, a lock core 2 is rotated in the lock core sleeve 1, at least two sets of first pin holes 11 are disposed on the outer peripheral surface of the lock core sleeve 1, the first pin holes 11 in each set are distributed along the axis of the lock core sleeve 1, a plurality of second pin holes 21 corresponding to the first pin holes 11 are disposed on the lock core 2, first pins 3 are slidably disposed in the first pin holes 11, a spring 4 is further disposed to slide the first pins 3 toward the lock core 2, second pins 5 are slidably disposed in the second pin holes 21, a coaxial first keyway 22 is disposed on the lock core 2, a plurality of second keyway 23 are disposed on the lock core 2, the plurality of second keyway 23 are distributed on the outer periphery of the first keyway 22, the plurality of second keyway 23 are communicated with the first keyway 22, the axes of the plurality of second keyway 23 are parallel to the axis of the first keyway 22, the second pin holes 21 are communicated with the second keyway 23, and one end of the second pin 5, which is far away from the lock cylinder sleeve 1, is located in the second keyway 23.

Because the second pin tumbler holes 21 are communicated with the second keyway 23, the second pin tumblers 5 are positioned in the second keyway 23, and the second keyway 23 is provided with a plurality of second keyway 23, the pin tumbler lock cylinder can be prevented from being prized by the technology, and because the combination of the plurality of second keyway 23 and the first keyway 22 ensures that a key inserted into the pin tumbler lock cylinder is different from the existing key, a master key in the market can be prevented from being inserted into the keyway of the pin tumbler lock cylinder.

The second key hole passages 23 are square hole passages, two adjacent second key hole passages 23 are perpendicular to each other, and a plurality of second key hole passages 23 can be arranged in a square shape.

The lock core 2 is convenient to be provided with the second keyway 23 and the first keyway 22, and the second keyway 23 is a square hole, so that the blade of the key inserted into the second keyway 23 is square, the situation that a master key on the market is inserted into the keyway of the spring lock core can be avoided, the production cost is reduced, and the economic benefit is improved.

Wherein the second keyway 23 is an arcuate channel.

The blade of the key inserted into the second keyway 23 is arc-shaped, and the keyway of the key is positioned on the arc-shaped blade because one end of the second pin tumbler 5 is positioned in the second keyway 23, so that a master key on the market cannot be inserted into the keyway of the pin tumbler lock cylinder to unlock.

The second keyway 23 is square in communication with the first keyway 22, and the second keyway 23 and the communication form an "L" shape.

The blocking part is formed in the keyway of the spring lock core, the spring lock core is further prevented from being prized by the technology, the first keyway 22, the second keyway 23 and the communicating part are convenient to manufacture by the lock core 2, keys which can be simultaneously inserted into the first keyway 22 and the second keyway 23 are produced, the production cost is reduced, and the economic benefit is improved.

Claims

1. A pin tumbler lock core comprises a lock core sleeve, a lock core is rotated in the lock core sleeve, at least two groups of first pin tumbler holes are arranged on the outer peripheral surface of the lock core sleeve, the first pin tumbler holes in each group are distributed along the axis of the lock core sleeve, a plurality of second pin tumbler holes which are arranged corresponding to the first pin tumbler holes are arranged on the lock core, the first pin tumbler holes are internally provided with first pin tumblers in a sliding manner, and are also provided with springs which enable the first pin tumblers to slide towards the lock core, second pin tumblers are internally provided with second pin tumblers in a sliding manner, the lock core is provided with a coaxial first keyway, the pin tumbler lock core is characterized in that a plurality of second keyway holes are arranged on the outer periphery of the first keyway holes, the plurality of second keyway holes are communicated with the first keyway holes, the axes of the plurality of second keyway holes are arranged in parallel to the axis of the first keyway holes, and the plurality of second pin tumbler holes are communicated with the plurality of second keyway holes, and one end of the second pin far away from the lock cylinder sleeve is positioned in the second keyway.

2. The night lock core of claim 1, wherein the second keyway is a square channel, two adjacent second keyway channels are perpendicular to each other, and a plurality of second keyway channels can be arranged in a square configuration.

3. The night lock cylinder of claim 1, wherein said second keyway is an arcuate channel.

4. The night lock core of claim 2, wherein the second keyway is square in communication with the first keyway, and the second keyway and the communication form an "L" shape.