CN223880926U

CN223880926U - A technical unlocking structure for a pin tumbler lock

Info

Publication number: CN223880926U
Application number: CN202520314244.0U
Authority: CN
Inventors: 胥泽棋; 胥世伙
Original assignee: Individual
Current assignee: Individual
Priority date: 2025-02-24
Filing date: 2025-02-24
Publication date: 2026-02-06
Anticipated expiration: 2035-02-24

Abstract

This utility model belongs to the technical field of anti-theft lock technology, specifically disclosing an anti-technical unlocking structure for a pin tumbler lock. It includes an outer pin hole located on the side wall of the lock body, with an outer pin and spring movably mounted within it, the outer pin abutting against the spring. An inner pin hole is located on the side wall of the lock cylinder, with an inner pin movably mounted within it, the inner pin adjustingly pressing against the outer pin to allow the outer pin and spring to fall into or disengage from the inner pin hole. A locking switch is movably connected to the side wall of the lock cylinder. This utility model, by setting an irregularly shaped inner pin, outer pin, inner pin hole, and outer pin hole, makes it extremely easy for technical unlocking techniques to jam the outer and inner pins, thus directly locking the lock cylinder to the lock body, preventing rotation. Furthermore, by incorporating the locking switch, unless a suitable key is inserted, the locking switch will always lock the lock cylinder and lock body, making unlocking impossible.

Description

Technical unlocking preventing structure of cylinder lock

Technical Field

The utility model belongs to the technical field of anti-theft locks, and particularly relates to a technical unlocking prevention structure of a cylinder lock.

Background

With the improvement of the quality of life conditions of modern people, the demands of people on household safety are also improved, and the protection of a door lock is needed, and the traditional door lock has some defects, such as damage and opening by specific tools and skills, and intelligent door locks, such as fingerprint and face recognition, can be opened by manufacturing a mold or using a specific interference device.

In order to solve the problem of low safety of the door lock in the prior art, the structure of the lock is also required to be improved, so that the current technical problem is solved.

Disclosure of Invention

The utility model aims to provide an anti-technical unlocking structure of a cylinder lock, which is easy to unlock by technical means to directly lock a lock core and a lock body, and can not rotate.

In order to achieve the purpose, the utility model adopts the following technical scheme that the technical unlocking preventing structure of the cylinder lock comprises the following components:

the outer marble hole is arranged on the side wall of the lock body, an outer marble and a spring are movably arranged in the outer marble hole, and the outer marble is abutted against the spring to be close to the spring;

An inner ball hole arranged on the side wall of the lock cylinder, an inner ball movably arranged in the inner ball hole and pressed against the outer ball in an adjustable way so that the outer ball and the spring fall into or separate from the inner ball hole, and

And the locking switch is movably connected to the side wall of the lock cylinder.

In order to better realize the utility model, the outer marble is of a conical structure, the round bottom surface faces the inner marble, the spring is sleeved on the side surface of the outer marble, and the radius of the bottom surface of the outer marble is larger than the diameter of the inner ring of the spring.

In order to better realize the utility model, the radius of the pressing surface of the inner marble and the outer marble is smaller than the radius of the bottom surface of the outer marble.

In order to better realize the utility model, the outer marble is elastically deformed.

In order to better realize the utility model, the inner marble is a combined structure of a cylinder and a hemisphere, and the diameter of the hemisphere is smaller than that of the cylinder.

In order to better realize the utility model, the inner marble hole consists of an inner section hole and an outer section hole, wherein the outer section hole is a cylindrical hole with the diameter equal to that of the outer marble hole, the diameter of one end of the inner section hole away from the outer section hole is smaller than that of the cylindrical part of the inner marble, and the diameter of the other part of the inner section hole is equal to that of the cylindrical part of the inner marble.

In order to better realize the utility model, the locking switch comprises a bayonet lock and a rotating shaft, wherein the lock cylinder and the lock body are provided with a first notch and a second notch for the bayonet lock to move, and the bayonet lock is rotatably connected in the first notch through the rotating shaft.

In order to better realize the utility model, the clamping pin is of an L-shaped structure, and the gravity center of the clamping pin is positioned between the rotating shaft and the corner of the clamping pin.

The beneficial effects are that:

The utility model combines the inner marble and the outer marble with different structures, and combines the combined action of the inner marble hole and the outer marble hole, if someone adopts technical unlocking, the outer marble is very easy to be directly blocked in the spring, or the inner marble is blocked between the inner marble hole and the outer marble hole, so that the lock cylinder is directly blocked with the lock body and cannot rotate, even if other parts of the marble lock are unlocked, the lock cylinder cannot be opened, thereby effectively improving the technical unlocking resistance of the marble lock.

Drawings

FIG. 1 is an internal block diagram of a key-free condition;

FIG. 2 is an internal construction diagram in a state of inserting a key;

FIG. 3 is an enlarged block diagram of the position A;

fig. 4 is an internal structural view in the locked state of embodiment 1 and embodiment 3;

FIG. 5 is an enlarged block diagram of the portion B;

FIG. 6 is an internal structural view in a locked state of embodiment 2;

Fig. 7 is an enlarged structural view at C.

In the figure, 1, an outer marble hole, 2, an outer marble, 3, a spring, 4, an inner marble hole, 41, an outer section hole, 42, an inner section hole, 5, an inner marble, 51, a cylinder, 52, a hemispherical body, 6, a locking switch, 61, a bayonet lock, 62, a rotating shaft, 63, a first notch, 64, a second notch, 7, a lock body, 8, a lock cylinder, 9, a key, 10 and a lock tongue are shown.

Detailed Description

Example 1

As shown in fig. 1 to 5, the technical unlocking preventing structure of the pin tumbler lock comprises an outer pin tumbler hole 1 arranged on the side wall of a lock body 7, wherein an outer pin tumbler 2 and a spring 3 are movably arranged in the outer pin tumbler hole 1, the outer pin tumbler 2 is abutted against the spring 3 to be close to the spring, the outer pin tumbler 2 is of a conical structure, the round bottom surface faces to an inner pin tumbler 5, the spring 3 is sleeved on the side surface of the outer pin tumbler 2, the radius of the bottom surface of the outer pin tumbler 2 is larger than the diameter of an inner ring of the spring 3, the radius of an abutting surface of the inner pin tumbler 5 and the outer pin tumbler 2 is smaller than the radius of the bottom surface of the outer pin tumbler 2, and the outer pin tumbler 2 is elastically deformed;

The technical unlocking prevention structure further comprises an inner marble hole 4 arranged on the side wall of the lock cylinder 8, wherein an inner marble 5 is movably arranged in the inner marble hole 4, and the inner marble 5 can be pressed against the outer marble 2 in an adjustable manner so that the outer marble 2 and the spring 3 fall into or separate from the inner marble hole 4.

The working principle of this embodiment is summarized as follows:

As shown in fig. 1, when the key 9 is not inserted, the inner pin 5 is pressed against the inner pin hole 4 by the outer pin 2 under the action of the spring 3, and a part of the outer pin 2 is located in the outer pin hole 1 and a part of the outer pin 2 is located in the inner pin hole 4, so that the plug 8 is locked and cannot rotate.

As shown in fig. 2 and 3, after the key 9 is inserted, since the key 9 has the matched pin groove, the inner pin 5 is jacked up, and the pressing surfaces of the inner pin 5 and the outer pin 2 are flush with the interface between the lock cylinder 8 and the lock body 7, the lock cylinder 8 can be rotated at this time, so that the lock tongue 10 is driven to rotate to complete unlocking.

Because the outer marble 2 has elastic deformation capability, when the key 9 is inserted, the normal pressure provided by the key 9 only can jack the outer marble 2 and the spring 3 normally so as to achieve the effect that the lock cylinder 8 can rotate relative to the lock body 7, however, if a person adopts technical unlocking, the force is larger, the outer marble 2 is inevitably deformed, and furthermore, because the spring 3 also has certain deformation capability, and a certain gap is formed between each circle of the spring 3, as shown in fig. 4 and 5, the outer marble 2 can be directly jacked into the spring 3 and clamped into the gap between the circles of the spring 3, and because the radius of the pressing surface of the inner marble 5 and the outer marble 2 is smaller than the radius of the bottom surface of the outer marble 2, the inner marble 5 cannot form pressing on the spring 3, at the moment, the outer marble 2 is blocked in the spring 3, the spring 3 cannot be jacked up again, and the lock cylinder 8 cannot be opened even if the key 9 is used.

Example 2

As shown in fig. 1 to 3, 6 and 7, the technical unlocking prevention structure of the pin tumbler lock is different from the embodiment 1 in that the inner pin tumbler 5 is a combined structure of a cylinder 51 and a hemispherical body 52, the diameter of the hemispherical body 52 is smaller than that of the cylinder 51, the inner pin tumbler hole 4 is composed of an inner section hole 42 and an outer section hole 41, the outer section hole 41 is a cylindrical hole with the diameter equal to that of the outer pin tumbler hole 1, the diameter of one end of the inner section hole 42 away from the outer section hole 41 is smaller than that of the cylinder 51 of the inner pin tumbler 5, and the diameter of the rest of the inner section hole 42 is equal to that of the cylinder 51 of the inner pin tumbler 5.

The working principle of this embodiment is summarized as follows:

As shown in fig. 2 and 3, under normal conditions, after the adapted key 9 is inserted, the inner marble 5 is jacked up because the key 9 has the adapted marble groove, at this time, the pressing surface of the inner marble 5 and the outer marble 2 is flush with the interface between the lock cylinder 8 and the lock body 7, and a part of the cylinder 51 of the inner marble 5 is still in the inner section hole 42, and when the key 9 is removed, the inner marble 5 can naturally fall under the action of the spring 3, and returns to the state shown in fig. 1, thereby forming a locking for the lock cylinder 8.

However, if a person uses a technical unlocking, as shown in fig. 6 and 7, the inner marble 5 is forced to push upwards, and because the diameter of the hemispherical body 52 is smaller than that of the cylindrical body 51, the inner marble 5 has a step structure, when the inner marble 5 moves upwards to the position that the cylindrical body is completely located in the outer section hole 41, the inner marble 5 may be pressed against the bottom surface of the outer section hole 41 under the action of the spring 3, and cannot fall down to recover to the state shown in fig. 1, and a part of the inner marble 5 is in the outer marble hole 1, a part of the inner marble 5 is in the inner marble hole 4 to form a locking for the lock cylinder 8, so that the lock cylinder 8 cannot rotate, and the lock tongue 10 cannot be driven to rotate to realize unlocking.

Example 3

As shown in fig. 1, 2, 4 and 6, the technical unlocking prevention structure of the pin tumbler lock is different from the embodiment 1 in that the pin tumbler lock further comprises a locking switch 6 movably connected to the side wall of the lock cylinder 8, the locking switch 6 comprises a clamping pin 61 and a rotating shaft 62, the lock cylinder 8 and the lock body 7 are provided with a first notch 63 and a second notch 64 for the clamping pin 61 to move, the clamping pin 61 is rotatably connected in the first notch 63 through the rotating shaft 62, the clamping pin 61 is of an L-shaped structure, and the center of gravity of the clamping pin 61 is located between the rotating shaft 62 and the rotating angle of the clamping pin 61.

The working principle of this embodiment is summarized as follows:

As shown in fig. 1 and 6, normally, since the center of gravity of the locking pin 61 is located between the rotating shaft 62 and the corner of the locking pin 61, the end of the locking pin 61 away from the lock tongue 10 is sheathed into the second notch 64 in the lock body 7, and at this time, the locking pin 61 locks the lock cylinder 8, so that the lock cylinder 8 cannot rotate.

As shown in fig. 2, after the adapted key 9 is inserted, the end of the key 9 will prop against the bayonet 61, so that the end of the key away from the lock tongue 10 rotates into the first notch 63, the lock cylinder 8 and the lock body 7 are not locked, and the lock cylinder 8 can rotate, thereby driving the lock tongue 10 to rotate to unlock.

However, if someone adopts technical unlocking, the unlocking tool is too short, and one end of the bayonet 61 far from the lock tongue 10 cannot be completely rotated into the first notch 63, or the state shown in fig. 1 and 6 is still achieved, the lock cylinder 8 is still locked and cannot be rotated, otherwise, if the unlocking tool is too long, one end of the bayonet 61 close to the lock tongue 10 is rotated into the first notch 63, and the state shown in fig. 4 is achieved, and the lock cylinder 8 is still locked and cannot be rotated.

Finally, it should be noted that the above description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A structure for preventing technical unlocking of a cylinder lock, comprising:

The outer marble hole (1) is arranged on the side wall of the lock body (7), an outer marble (2) and a spring (3) are movably arranged in the outer marble hole (1), and the outer marble (2) is abutted against the spring (3) to be close to the spring;

An inner ball hole (4) arranged on the side wall of the lock cylinder (8), wherein an inner ball (5) is movably arranged in the inner ball hole (4), the inner ball (5) can be pressed against the outer ball (2) in an adjustable way so that the outer ball (2) and the spring (3) fall into or separate from the inner ball hole (4), and

The locking switch (6) is movably connected to the side wall of the lock cylinder (8).

2. The technical unlocking prevention structure of the pin tumbler lock according to claim 1, wherein the outer pin tumbler (2) is of a conical structure, the round bottom surface faces the inner pin tumbler (5), the spring (3) is sleeved on the side surface of the outer pin tumbler (2), and the radius of the bottom surface of the outer pin tumbler (2) is larger than the diameter of the inner ring of the spring (3).

3. A structure for preventing technical unlocking of a pin tumbler lock according to claim 2, characterized in that the radius of the pressing surface of the inner pin tumbler (5) and the outer pin tumbler (2) is smaller than the radius of the bottom surface of the outer pin tumbler (2).

4. A structure for preventing technical unlocking of a pin tumbler lock according to claim 1, characterized in that the outer pins (2) are elastically deformed.

5. A structure for preventing technical unlocking of a pin tumbler lock according to claim 1, characterized in that the inner pin tumbler (5) is a combination structure of a cylinder (51) and a hemisphere (52), and the diameter of the hemisphere (52) is smaller than the diameter of the cylinder (51).

6. The technical unlocking prevention structure of a pin tumbler lock according to claim 5, wherein the inner pin tumbler hole (4) is composed of an inner segment hole (42) and an outer segment hole (41), the outer segment hole (41) is a cylindrical hole, the diameter of the outer segment hole is equal to that of the outer pin tumbler hole (1), the diameter of one end of the inner segment hole (42) away from the outer segment hole (41) is smaller than that of a cylindrical body (51) of the inner pin tumbler (5), and the diameter of the rest of the inner segment hole (42) is equal to that of the cylindrical body (51) of the inner pin tumbler (5).

7. A cylinder lock anti-technical unlocking structure according to claim 1, characterized in that the dead lock switch (6) comprises a bayonet lock (61) and a rotary shaft (62), the lock cylinder (8) and the lock body (7) are provided with a first notch (63) and a second notch (64) for the bayonet lock (61) to move, and the bayonet lock (61) is rotatably connected in the first notch (63) through the rotary shaft (62).

8. The structure for preventing technical unlocking of a cylinder lock according to claim 7, characterized in that said bayonet (61) is of L-shaped configuration, the center of gravity of said bayonet (61) being located between said rotation axis (62) and the corner of said bayonet (61).