High security multi-tumbler combination lock cylinder

Abstract

The utility model discloses high security multi-bead linkage pin tumbler lock core, it includes lock body, lock core main part, a plurality of main beads, a plurality of vice beads and a plurality of beads spring, the lock core main part is all equipped with the first bead passageway in the position department of every main bead, and the one side of every first bead passageway is equipped with the clamping groove, the lock body is equipped with a plurality of second bead passageways with first bead passageway intercommunication, and the one side of every second bead passageway is equipped with the auxiliary passageway with clamping groove intercommunication, every auxiliary passageway all is provided with the clamping piece, and the bottom end of every clamping piece all installs the linkage, and the clamping piece carries out synchronous action with vice bead through linkage, and the end of every linkage all is connected on the vice bead of corresponding side. The utility model not only can promote the security of use, still has the advantages such as high work stability, long service life, good effect of prying prevention and easy assembly.

Description

Technical Field

[0001] This utility model relates to a lock cylinder structure for a padlock, particularly a high-security multi-bead linkage pin tumbler lock cylinder. Background Technology

[0002] The pin tumbler lock cylinder is a crucial component of a pin tumbler padlock, primarily consisting of the cylinder body, main pins, auxiliary pins, and pin springs. During unlocking, the teeth on the key push different main pins towards the lock body, ensuring that the contact surfaces between all main and auxiliary pins are between the cylinder body and the lock body. This allows the entire cylinder to rotate, unlocking the lock. However, this type of pin tumbler lock lacks a multi-dimensional verification structure, allowing unauthorized personnel to pry open the pins one by one with pry tools and rotate the cylinder to unlock it. This results in poor anti-pry protection and low overall security. Therefore, existing pin tumbler padlock cylinders suffer from poor security during use. Utility Model Content

[0003] The purpose of this invention is to provide a high-security multi-bead linked pin tumbler lock cylinder. This invention has the advantage of high security in use.

[0004] The technical solution of this utility model: a high-security multi-pin linkage pin tumbler lock cylinder, including a lock body, a lock cylinder main body disposed within the lock body, multiple main pins disposed on the lock cylinder main body, multiple auxiliary pins disposed within the lock body, and pin springs. The lock cylinder main body has a first pin channel at the position corresponding to each main pin, and each first pin channel has a slot on one side. The lock body has a second pin channel at the position corresponding to each auxiliary pin, communicating with the first pin channels, and each second pin channel has an auxiliary channel on one side communicating with the slot. Each auxiliary channel has a locking component, and each locking component cooperates with the corresponding slot to fix the lock cylinder main body in the locked position. The lock is kept in place; each locking component has a linkage at its bottom end, and the locking component moves synchronously with the secondary pins through the linkage; the end of each linkage is connected to the secondary pin on the corresponding side; the lock body has an intermediate channel for the linkage to move up and down at the position corresponding to the linkage; by using the locking components and the slots to increase the connection points between the lock cylinder and the lock body, and by ensuring that the movement path and movement of the locking components at different positions are the same as the movement of the corresponding secondary pins, it is impossible for some people to pry open the lock by pushing the pins one by one with a wire and lever and rotating the lock cylinder multiple times. Only the correct key can be used to open it, thus improving the security of the entire lock cylinder.

[0005] In the aforementioned high-security multi-bead linkage pin tumbler lock cylinder, an auxiliary spring is installed between the bottom end of the locking component and the inner bottom surface of the auxiliary channel. The auxiliary spring provides a certain buffer protection at the bottom end of the locking component, preventing the locking component from directly colliding with the auxiliary channel, thereby avoiding damage to the locking component or even the lock body and extending its service life.

[0006] In the aforementioned high-security multi-bead linkage pin tumbler lock cylinder, the head of the main pin is hemispherical, and the cross-sections of the main pin body and the auxiliary pin body are both regular hexagonal. By setting the bodies of both the main pin and the auxiliary pin to the shape of regular hexagonal prisms, external personnel can be prevented from prying the lock by rotating the pins, further improving the anti-pry effect and enhancing the security of use.

[0007] In the aforementioned high-security multi-bead linkage pin tumbler lock cylinder, one end of the linkage component is fixedly installed on the bottom end face of the snap-fit ​​component, and the other end is fixedly installed on the bottom end face of the secondary pin body.

[0008] In the aforementioned high-security multi-bead linkage pin tumbler lock cylinder, a magnetic sheet is attached to the end face of the locking component facing the slot; a magnetic coating is sprayed on the inner wall of the slot, and the magnetic coating and the magnetic sheet attract each other; by utilizing the certain magnetic attraction between the magnetic sheet and the magnetic coating, the connection strength between the slot and the locking component can be increased, further enhancing the anti-pry capability.

[0009] Compared with existing technologies, this utility model improves upon existing pin tumbler lock cylinders. By providing a slot on one side of each first pin channel and connecting a locking element to each auxiliary pin via a linkage, with the slot positioned at the end of the locking element's movement path, the end of the locking element engages with the slot when the padlock is locked. This increases the fixing points between the lock cylinder and the lock body. Furthermore, the movement path and movement of the locking elements at different positions are identical to the movement of the corresponding auxiliary pins. This makes it impossible for individuals to pry open the lock using only a wire and lever to push individual pins and rotate the lock cylinder multiple times; only the correct key can open it, thus improving the overall security of the lock cylinder. Simultaneously, by setting auxiliary and intermediate channels, the movement of the locking elements and linkages can be guided and limited, ensuring the stability of their movement. This, in turn, ensures stable engagement and disengagement between the locking elements and the slot, guaranteeing operational stability.

[0010] Furthermore, this invention also incorporates an auxiliary spring at the bottom of the locking component. This auxiliary spring provides cushioning and protection at the bottom of the locking component, preventing direct impact between the locking component and the auxiliary channel, thus avoiding damage to the locking component or even the lock body and extending its service life. By designing both the main and auxiliary pins into regular hexagonal prism shapes, it prevents external personnel from prying the lock by rotating the pins, further enhancing the anti-pry effect and improving safety. Moreover, the hexagonal prism shape of the auxiliary pins provides a flat surface for the connection between the linkage and the auxiliary pins, facilitating assembly. The magnetic sheet attached to the end face of the locking component and the magnetic coating applied to the inner wall of the slot increase the connection strength between the slot and the locking component through the magnetic attraction between the magnetic sheet and the magnetic coating, further enhancing the anti-pry capability. Therefore, this invention not only improves safety but also boasts advantages such as high operational stability, long service life, excellent anti-pry effect, and easy assembly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a top view of the main projectile;

[0013] Figure 3 This is a top view of the auxiliary projectile;

[0014] Figure 4 yes Figure 1 A magnified view of a section at point A in the middle;

[0015] Figure 5 yes Figure 1 A magnified view of a section at point B.

[0016] The labels in the attached diagram are as follows: 1-lock body, 2-lock cylinder body, 3-main pin, 4-secondary pin, 5-pin spring, 6-first pin channel, 7-slot, 8-second pin channel, 9-auxiliary channel, 10-clamping component, 11-linkage component, 12-intermediate channel, 13-auxiliary spring, 14-magnetic piece, 15-magnetic coating. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0018] Example. A high-security multi-bead linked pin tumbler lock cylinder, configured as follows: Figures 1 to 5As shown, the lock includes a lock body 1, a lock cylinder body 2 disposed within the lock body 1, multiple main pins 3 disposed on the lock cylinder body 2, multiple auxiliary pins 4 disposed within the lock body 1, and pin springs 5. Each main pin 3 on the lock cylinder body 2 has a first pin channel 6, and each first pin channel 6 has a slot 7 on one side. Each auxiliary pin 4 in the lock body 1 has a second pin channel 8 communicating with the first pin channel 6, and each second pin channel 8 has an auxiliary pin 7 communicating with the slot 7 on one side. Channel 9; Each auxiliary channel 9 is provided with a snap-fit ​​component 10, and each snap-fit ​​component 10 cooperates with the corresponding slot 7 to fix the position of the lock cylinder body 2 in a fixed state when not unlocked; each snap-fit ​​component 10 is equipped with a linkage component 11 at its bottom end, and the snap-fit ​​component 10 moves synchronously with the secondary pin 4 through the linkage component 11; the end of each linkage component 11 is connected to the secondary pin 4 on the corresponding side; the lock body 1 is provided with an intermediate channel 12 at the position corresponding to the linkage component 11 for the linkage component 11 to move up and down.

[0019] An auxiliary spring 13 is installed between the bottom end of the snap-fit ​​component 10 and the inner bottom surface of the auxiliary channel 9; the head of the main ball 3 is hemispherical, and the cross-sections of the ball body of the main ball 3 and the ball body of the auxiliary ball 4 are both regular hexagonal; one end of the linkage component 11 is fixedly installed on the bottom end surface of the snap-fit ​​component 10, and the other end is fixedly installed on the bottom end surface of the ball body of the auxiliary ball 4; a magnet 14 is attached to the end face of the snap-fit ​​component 10 facing the slot 7; a magnetic coating 15 is sprayed on the inner sidewall of the slot 7, and the magnetic coating 15 and the magnet 14 attract each other.

[0020] Working principle: When unlocking, simply insert the corresponding key into the key channel inside the lock cylinder body 2. After the key is fully inserted, the key teeth on the key will push the main pin 3 to move towards the auxiliary pin 4. As the main pin 3 is pushed, it simultaneously pushes the auxiliary pin 4. During the movement of the auxiliary pin 4, it compresses the pin spring 5, allowing it to return to its initial position after the key is removed, thus engaging the lock cylinder. Simultaneously, the movement of the auxiliary pin 4 causes the linkage 11 to move, which in turn moves the locking member 10, causing it to separate from the slot 7, thus unlocking the lock cylinder. The locking effect of the locking member 10 on the position of the lock cylinder body 2 is released, allowing the lock cylinder body 2 to rotate with the key. When an external prying tool is used to pry open the entire pin tumbler lock cylinder, the locking effect between the locking member 10 and the slot 7 achieves the purpose of fixing the position of the lock cylinder body 2 and preventing it from rotating. This means that when using a prying tool to turn each pin individually, the lock cylinder body 2 cannot be rotated, and the position of each pin cannot be fixed. In addition, since there are multiple main pins 3 and auxiliary pins 4, the difficulty of prying open the lock is increased, thereby improving the overall security of the pin tumbler lock cylinder.

Claims

1. A high-security multi-pin linked pin tumbler lock cylinder, comprising a lock body (1), a lock cylinder body (2) disposed within the lock body (1), multiple main pins (3) disposed on the lock cylinder body (2), multiple auxiliary pins (4) disposed within the lock body (1), and pin springs (5), characterized in that: The lock cylinder body (2) has a first pin channel (6) at the position corresponding to each main pin (3), and a slot (7) is provided on one side of each first pin channel (6); the lock body (1) has a second pin channel (8) at the position corresponding to each auxiliary pin (4) that communicates with the first pin channel (6), and an auxiliary channel (9) communicating with the slot (7) is provided on one side of each second pin channel (8); each auxiliary channel (9) is provided with a snap-fit ​​component (10), and each snap-fit ​​component (10) is provided with a snap-fit ​​component (10) that communicates with the slot (7). Each of the corresponding slots (7) cooperates with each other to fix the position of the lock cylinder body (2) in a fixed state when it is not unlocked; each of the latching parts (10) has a linkage part (11) installed at the bottom end, and the latching part (10) moves synchronously with the secondary pin (4) through the linkage part (11); the end of each linkage part (11) is connected to the secondary pin (4) on the corresponding side; the lock body (1) is provided with an intermediate channel (12) for the linkage part (11) to move up and down at the position corresponding to the linkage part (11).

2. The high-security multi-bead linkage pin tumbler lock cylinder according to claim 1, characterized in that: An auxiliary spring (13) is installed between the bottom end of the snap-fit ​​(10) and the inner bottom surface of the auxiliary channel (9).

3. The high-security multi-bead linkage pin tumbler lock cylinder according to claim 1, characterized in that: The head of the main ball (3) is hemispherical, and the cross-sections of the body of the main ball (3) and the body of the secondary ball (4) are both regular hexagons.

4. The high-security multi-bead linkage pin tumbler lock cylinder according to claim 3, characterized in that: One end of the linkage (11) is fixedly installed on the bottom surface of the snap-fit ​​(10), and the other end is fixedly installed on the bottom surface of the body of the secondary ball (4).

5. The high-security multi-bead linkage pin tumbler lock cylinder according to any one of claims 1 to 4, characterized in that: A magnet (14) is attached to the end face of the snap-fit ​​component (10) facing the slot (7); a magnetic coating (15) is sprayed on the inner wall of the slot (7), and the magnetic coating (15) and the magnet (14) attract each other.

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