CN215407913U

CN215407913U - Spring lock core

Info

Publication number: CN215407913U
Application number: CN202121656895.6U
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 arranged on the 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, first pin tumblers are arranged in the first pin tumbler holes in a sliding manner, an elastic part which enables the first pin tumblers to slide towards the lock core is also arranged, second pin tumblers are arranged in the second pin tumbler holes in a sliding manner, a coaxial lock core hole is arranged on the lock core, one end of each second pin tumbler can be exposed in the lock core hole, a plurality of first convex ribs are arranged in the lock core hole, the length direction of each first convex rib is the same as the axis direction of the lock core hole, and the first convex ribs are arranged between the second pin tumbler holes of the two adjacent groups. By adopting the technical scheme, the lock can be prevented from being prized by iron wires and other objects, and the lock cylinder holes are different in shape, so that the conventional key cannot be inserted into the lock cylinder holes, and the spring lock cylinder 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 sleeve, wherein the lock core sleeve is rotationally provided with the lock core, the lock core sleeve is provided with a plurality of first spring holes along the radial direction, the lock core is also provided with a plurality of second spring holes along the radial direction, the first spring holes and the second spring holes are in one-to-one correspondence when the lock core is in a locking state, first springs are placed in the first spring holes, second springs are placed in the second spring holes, and elastic parts are further arranged in the first spring holes and used for driving the first springs to be tightly attached to the second springs.

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

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

However, most of the lock core holes in the existing lock core shaft are flat, so that most of keys can be inserted into the lock core holes to pick the lock, one end of the second marble is exposed in the lock core holes, and the lock can be easily picked by an object such as an iron wire which can be inserted into the lock core holes.

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 can prevent the technical lock picking by objects such as iron wires and the like, and the shapes of lock core holes are different, so that the conventional key can not be inserted into the lock core hole, and the spring lock core can be effectively prevented from being picked.

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 formed in the 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 corresponding to the first pin tumbler holes are formed in the lock core, first pin tumblers are arranged in the first pin tumbler holes in a sliding mode, an elastic piece enabling the first pin tumblers to slide towards the lock core is further arranged, second pin tumblers are arranged in the second pin tumbler holes in a sliding mode, a coaxial lock core hole is formed in the lock core, one end of each second pin tumbler can be exposed in the lock core hole, a plurality of first convex ribs are arranged in the lock core hole, the length direction of each first convex rib is identical to the axis direction of the lock core hole, and the first convex ribs are arranged between every two adjacent groups of second pin tumbler holes.

By adopting the technical scheme, the plurality of first convex ribs are arranged in the lock cylinder hole, and the second spring hole is positioned between the two adjacent first convex ribs, so that the second spring positioned in the lock cylinder hole is separated, the spring lock cylinder is prevented from being technically picked, and the lock cylinder hole of the spring lock cylinder is different from the existing lock cylinder hole in style due to the combination of the plurality of first convex ribs and the lock cylinder hole, so that the used key is different, the existing key can be prevented from being inserted into the lock cylinder hole of the spring lock cylinder, and the lock is prevented from being picked.

The utility model further provides that: the lock cylinder hole is circular along the radial section of the lock cylinder, a plurality of second convex ribs are arranged in the lock cylinder hole, the second convex ribs are located at the positions of the second spring holes of each group, and a plurality of through holes communicated with the second spring holes are formed in the second convex ribs.

By adopting the above further arrangement, the shape of the lock cylinder hole, the combination of the first convex rib and the second convex rib are different from the existing lock cylinder hole, so that a common key cannot be inserted into the lock cylinder hole of the pin tumbler lock cylinder, the pin tumbler lock cylinder is prevented from being prized, and further, although the second pin tumbler is exposed in the lock cylinder hole, the second convex rib shields the second pin tumbler, and the pin tumbler lock cylinder can be effectively prevented from being prized by an iron wire.

The utility model further provides that: the lock core hole is square along the radial section of the lock core, a group of second spring holes are formed in each inner wall of the lock core hole, two first convex ribs are arranged on a group of oppositely arranged inner walls in the lock core hole, the second spring holes are formed between the two first convex ribs, and the distance between one convex rib and the adjacent inner wall surface is smaller than or larger than the distance between the two convex ribs on the same inner wall surface.

Adopt above-mentioned further setting again, through changing the distance between the first protruding muscle, first protruding muscle and the lock core hole internal face between the interval for the structure and the shape in this lock core hole are different with current lock core hole, and current key can't insert the lock core, avoids the lock core to be prized.

The utility model further provides that: the length of each second convex rib along the radial direction of the lock core is smaller than the length of each first convex rib along the radial direction of the lock core.

Adopt above-mentioned further setting again, because the size of first protruding muscle and second protruding muscle is different, further change the shape in lock core hole for general key can't insert the lock core, avoids the lock core to be prized.

The utility model further provides that: the inner wall surface between two first convex ribs is a first bottom surface, the inner wall surface between one convex rib and the adjacent inner wall surface is a second bottom surface, and the first bottom surface and the second bottom surface are arranged in a ladder way.

By adopting the above further arrangement, the shape of the lock cylinder hole is further changed, so that a common key cannot be inserted into the lock cylinder, and the lock cylinder is prevented from being prized.

Drawings

FIG. 1 is a block diagram of an embodiment of the present invention;

FIG. 2 is a block diagram 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 cross-sectional view of a key hole of an embodiment of the present invention;

FIG. 6 is a diagram of a key hole configuration in accordance with an embodiment of the present invention;

FIG. 7 is a diagram of a key hole configuration in accordance with an embodiment of the present invention;

fig. 8 is a diagram of a key hole configuration in accordance with an 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. 1-8, 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, an elastic member 4 for making the first pins 3 slide toward the lock core 2 is further disposed, second pins 5 are slidably disposed in the second pin holes 21, a coaxial lock core hole 22 is disposed on the lock core 2, one end of each second pin 5 can be exposed in the lock core hole 22, a plurality of first convex ribs 6 are arranged in the lock cylinder hole 22, the length direction of each first convex rib 6 is the same as the axis direction of the lock cylinder hole 22, and the first convex ribs 6 are arranged between two adjacent groups of second spring holes 21.

Because the plurality of first convex ribs 6 are arranged in the lock cylinder hole 22, and the second pin hole 21 is positioned between the two adjacent first convex ribs 6, the second pin 21 positioned in the lock cylinder hole 22 is separated, so that the lock cylinder is prevented from being technically picked by objects such as iron wires, and then the lock cylinder hole 22 of the pin lock cylinder is different from the existing lock cylinder hole in style due to the combination of the plurality of first convex ribs 6 and the lock cylinder hole 22, so that the used key is also different, the existing key can be prevented from being inserted into the lock cylinder hole of the pin lock cylinder, and the lock is prevented from being picked.

The lock cylinder hole 22 is circular along the radial section of the lock cylinder 2, a plurality of second convex ribs 7 are arranged in the lock cylinder hole 22, the second convex ribs 7 are located at each group of second spring holes 21, and a plurality of through holes 71 communicated with the second spring holes 21 are formed in the second convex ribs 7.

The shape of the lock cylinder hole 22, the combination of the first convex rib 6 and the second convex rib 7 make the lock cylinder hole 22 different from the existing lock cylinder hole 22, and a common key cannot be inserted into the lock cylinder hole 22 of the pin tumbler lock cylinder to prevent the pin tumbler lock cylinder from being pried, and further, although the second pin tumbler 5 is exposed in the lock cylinder hole 22, the second convex rib 7 shields the second pin tumbler 5, so that the pin tumbler lock cylinder can be effectively prevented from being pried by an iron wire.

The lock cylinder hole 22 is square along the radial section of the lock cylinder 2, a group of second spring holes 21 is arranged on each inner wall of the lock cylinder hole 22, two first convex ribs 6 are arranged on a group of oppositely arranged inner walls in the lock cylinder hole 22, the second spring holes 21 are arranged between the two first convex ribs 6, and the distance D1 between one first convex rib 6 and the adjacent inner wall surface is smaller than or larger than the distance D2 between the two first convex ribs on the same inner wall surface.

Through changing the distance between first protruding muscle 6, interval between first protruding muscle 6 and the lock core hole 22 internal wall for the structure and the shape of this lock core hole 22 are different with current lock core hole 22, and current key can't insert lock core 2, avoids lock core 2 to be prized.

Wherein, the length L1 of each second rib 7 along the radial direction of the lock cylinder 2 is smaller than the length L2 of each first rib 6 along the radial direction of the lock cylinder 2.

Because the first convex rib 6 and the second convex rib 7 have different sizes, the shape of the lock cylinder hole 22 is further changed, so that a common key cannot be inserted into the lock cylinder 2, and the lock cylinder 2 is prevented from being prized.

The inner wall surface between two first convex ribs 6 is a first bottom surface 8, the inner wall surface between one first convex rib and the adjacent inner wall surface is a second bottom surface 9, and the first bottom surface 8 and the second bottom surface 9 are arranged in a ladder shape.

The shape of the lock cylinder hole 22 is further changed, so that a common key cannot be inserted into the lock cylinder 2, and the lock cylinder 2 is prevented from being prized.

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 formed in the 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 corresponding to the first pin tumbler holes are formed in the lock core, the first pin tumbler holes are internally provided with first pin tumblers in a sliding mode, an elastic piece enabling the first pin tumblers to slide towards the lock core is further arranged, second pin tumblers are internally provided with second pin tumblers in a sliding mode, a coaxial lock core hole is formed in the lock core, one end of each second pin tumbler can be exposed in the lock core hole, the pin tumbler lock core is characterized in that a plurality of first convex ribs are arranged in the lock core hole, the length direction of each first convex rib is identical to the axis direction of the lock core hole, and the first convex ribs are arranged between every two adjacent groups of second pin tumbler holes.

2. The night lock core according to claim 1, wherein the core hole is circular along a radial cross section of the core, a plurality of second ribs are provided in the core hole, the second ribs are located at each group of the second pin holes, and the second ribs are provided with a plurality of through holes communicated with the second pin holes.

3. The night lock core according to claim 1, wherein the core hole is square along a radial cross section of the core, each inner wall of the core hole is provided with a set of the second pin holes, a set of the inner walls of the core hole which are oppositely arranged are provided with two of the first ribs, the second pin hole is arranged between the two first ribs, and a distance between one rib and an adjacent inner wall surface is smaller than or larger than a distance between two ribs on the same inner wall surface.

4. A night lock cylinder according to claim 2, wherein the length of each second rib in the radial direction of the lock cylinder is smaller than the length of each first rib in the radial direction of the lock cylinder.

5. The night lock core according to claim 3, wherein the inner wall surface between two first ribs is a first bottom surface, the inner wall surface between one rib and the adjacent inner wall surface is a second bottom surface, and the first bottom surface and the second bottom surface are arranged in a step shape.