Lock core structure with multiple lock positions

Abstract

This delays picking time and increases picking costs. [Solution] A lock core structure with multiple lock positions, in which the lock core is provided with multiple lock slots to accommodate springs and leaf springs, leaf spring holes for passing keys through the leaf spring between the lock slots and the leaf spring, protrusions on the top and bottom of the leaf spring, a main lock position hole that penetrates both the top and bottom sides with a lock position sleeve placed on the outside, and at least one sub-lock position hole that penetrates both the top and bottom sides of the lock position sleeve, and at least one blocking part parallel to the main lock position hole, which prevents the sub-lock position holes from being continuous or makes their length shorter than that of the main lock position hole, thereby regulating the rotation direction and range of rotation angle of the lock body.

Description

[Technical Field]

[0001] The present invention relates to a lock core structure with multiple lock positions, and more particularly to a lock core structure with multiple lock positions that can delay picking time. [Background technology]

[0002] As shown in Figures 14 and 15, the structure of a conventional lock core is such that a lock body (80) is provided with multiple lock plates (81), and an elastic part (82) is provided between each lock plate (81) and the lock body (80). A lock sleeve (90) is provided to cover the outside of the lock body (80), and a hook hole (91) is provided in the lock sleeve (90). The elastic part (82) pushes the lock plate (81) with its elasticity, fitting its top into the hook hole (91), making it impossible to turn the lock body (80). When a key is inserted, all of the lock plates (81) are pushed down and cannot fit into the hook hole (91), allowing the lock body (80) to turn smoothly. However, this structure is widely known in the industry, and it can be picked using almost any lock-picking tool.

[0003] That is, since most thieves can usually pick a lock if they have a certain amount of patience and time, in order to improve the security of the user's own lock, if the time it takes for the thief to pick the lock is delayed or the cost of picking is increased as much as possible, the thief will give up on their own, or if it takes too long, it will attract attention and the police will be notified, which will improve the security of the lock.

[0004] Therefore, the present inventors have taken this into consideration and conceived the concept of the invention, designed it based on their many years of experience, and completed the present invention after much discussion, prototype testing of samples, and several modifications and improvements. Summary of the Invention

[0005] The present invention provides a lock core structure with multiple lock positions, which is effective in delaying the time it takes a thief to pick a lock or increasing the cost involved in picking, thereby improving the security of the lock.

[0006] Technical points to solve the problem The present invention provides a lock core structure with multiple lock positions, the structure including a lock body and a lock position sleeve, the lock body having a lock core, the lock core having multiple lock slots, a spring and a leaf spring accommodated in each of the lock slots, the spring resting between the lock slot and the leaf spring, a leaf spring hole for a key passing therethrough is provided through the leaf spring, protrusions are provided on the top and bottom of the leaf spring, a slot portion is provided at the front end of the lock core, a keyhole for a corresponding key is provided through the slot portion and a stopper is provided inside the bottom of the slot portion, the lock position sleeve is placed on the outside of the lock core, and main lock position holes are provided through the top and bottom of the lock position sleeve, The lock position sleeve is further provided with at least one sub-lock position hole penetrating both the upper and lower sides thereof, the sub-lock position hole being parallel to the main lock position hole and having at least one blocking portion formed in the sub-lock position hole, such that the sub-lock position holes are not continuous or their length is shorter than that of the main lock position hole, thereby preventing all of the protrusions of the leaf spring from being inserted into the sub-lock position hole; the lock position sleeve is provided with a recessed locking groove at its front end, and the stopper is positioned in the locking groove, thereby determining the rotation direction and rotation angle range of the lock body.

[0007] Furthermore, the number of the sub-lock position holes is two.

[0008] Furthermore, the leaf springs change direction at intervals so that the adjacent protrusions are fitted into the main lock position holes or sub lock position holes alternately upward or downward.

[0009] Here, it is preferable that the lower end of the leaf spring protrudes from the bottom, and if the compression width of the leaf spring is too large, the lower end is fitted into the main lock position hole or sub lock position hole on the other side of the lock position sleeve, so that the lock body cannot be turned.

[0010] In the first main object of the present invention, the leaf springs push the protrusions through the springs and fit them into the main lock position holes. When a thief uses a lock picking tool to enter the leaf spring holes and push each of the leaf springs, the protrusions do not fit into the main lock position holes and the lock body cannot be turned. However, when the lock body is turned, the springs push the protrusions and fit them into the sub lock position holes, causing the leaf springs to fit at an angle. This forces the thief to push the leaf springs again and prevents them from continuing to pick the lock, which delays the thief's picking attempt and increases the cost of picking.

[0011] In accordance with the second main object of the present invention, when the correct key is inserted from the keyhole into the leaf spring hole, the spring is pressed down and the protrusion does not fit into the main lock position hole, allowing the lock core to be turned smoothly. The sub-lock position holes are arranged with a blocking section so that the sub-lock position holes are not continuous or their length is shorter than that of the main lock position hole. This prevents the protrusion of the leaf spring from fitting entirely into the sub-lock position hole when the lock core is turned, causing a portion of the protrusion of the leaf spring to lean against the blocking section, preventing the key from being removed with the leaf spring fitting at an angle. Instead, the lock core can be turned to its original position so that the protrusion of the leaf spring is entirely fitted into the main lock position hole before the key can be removed, providing a foolproof effect.

[0012] Other objects, advantages, and novel features of the present invention will become more apparent from the following detailed description and the associated drawings. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a three-dimensional view of the present invention. [Figure 2] FIG. 1 is an exploded view of the present invention. [Figure 3] FIG. 1 is a plan view of the present invention. [Figure 4] 4A-4C are cross-sectional views taken along lines AA, BB, and CC of FIG. 3 of the present invention. [Figure 5] 5 is a cross-sectional view taken along line DD in the cross-sectional view taken along line BB in FIG. 4 of the present invention. [Figure 6] FIG. 10 is a schematic diagram showing the state when the present invention is forcibly unlocked. [Figure 7] FIG. 10 is a schematic diagram showing the state in which the leaf spring of the present invention is retracted. [Figure 8] 2A-2B are cross-sectional views taken along lines AA and BB showing the obstruction state of the lock position sleeve of the present invention. [Figure 9] 9 is a cross-sectional view taken along line EE in the cross-sectional view taken along line BB in FIG. 8 of the present invention. [Figure 10] 10A and 10B are cross-sectional views taken along lines AA and BB showing other obstruction modes of the lock position sleeve of the present invention. [Figure 11] FIG. 1 is a schematic diagram showing the state when the present invention is unlocked with the correct key. [Figure 12] FIG. 1 is a side cross-sectional view showing the state when the present invention is unlocked with the correct key. [Figure 13] 10 is a schematic diagram showing another embodiment of the lock position sleeve of the present invention. FIG. [Figure 14] FIG. 1 is an exploded view of a conventional lock core structure. [Figure 15] FIG. 1 is a front cross-sectional view of a conventional lock core structure. DETAILED DESCRIPTION OF THE INVENTION

[0014] In order to better understand and appreciate the objects, features, and advantages of the present invention, the following detailed description will be given with reference to the drawings in [Brief Description of the Drawings].

[0015] First, as shown in Figures 1 to 5, the present invention provides a lock core structure with multiple lock positions, which structure includes a lock body (10) and a lock position sleeve (20), the lock body (10) has a lock core (11), the lock core (11) is provided with multiple lock slots (111), each of the lock slots (111) accommodates a spring (12) and a leaf spring (13), the spring (12) rests between the lock slot (111) and the leaf spring (13), and a leaf spring (13) for passing a key is provided between the lock slot (111) and the leaf spring (13). A spring hole (131) is provided through the leaf spring (13), and protruding portions (132) are provided at the top and bottom of the leaf spring (13). A slotted portion (14) is provided at the front end of the lock core (11), and a keyhole (141) for inserting a corresponding key is provided through the slotted portion (14), and a stopper (142) is provided inside the bottom of the slotted portion (14) so ​​as to protrude. The lock position sleeve (20) is placed over the outside of the lock core (11), and the lock position sleeve (20) is provided with a stopper (142) that penetrates both the top and bottom of the lock position sleeve (20). Each main lock position hole (21) is provided, and the spring (12) pushes the leaf spring (13) to fit all of the protrusions (132) into the main lock position hole (21). At least one sub-lock position hole (22) is further provided through both the upper and lower sides of the lock position sleeve (20), and the sub-lock position hole (22) is parallel to the main lock position hole (21), and at least one blocking portion (221) is provided in the sub-lock position hole (22). By making the sub-lock position holes (22) not continuous or by making the length of the sub-lock position holes (22) shorter than the length of the main lock position holes (21), it becomes impossible to fit all of the protrusions (132) of the leaf spring (13) into the sub-lock position holes (22), and a locking groove (23) is recessed at the front end of the lock position sleeve (20), and the stopper (142) is positioned in the locking groove (23), thereby determining the rotation direction and range of the rotation angle of the lock body (10).

[0016] As shown in Figures 6 to 10, according to the above structure, the leaf spring (13) pushes the protrusion (132) through the spring (12) and fits into the main lock position hole (21). If a thief uses a lock picking tool (30) to enter the leaf spring hole (131) and pushes in each of the leaf springs (13), the protrusion (132) will not fit into the main lock position hole (21), and the lock body (10) cannot be turned. When the lock body (10) is turned, the spring (12) pushes the protrusion (132) and fits it into the sub-lock position hole (22), causing the leaf spring (13) to fit at an angle. This forces the thief to push the leaf spring (13) in again, preventing him from continuing to pick the lock, which delays the thief's picking attempt and increases the cost of picking.

[0017] As shown in Figures 11 to 13, when the correct key is inserted from the keyhole (141) into the leaf spring hole (131), the spring (12) is pressed, causing the leaf spring (13) to move downward, and the protrusion (132) does not fit into the main lock position hole (21), allowing the lock core (11) to rotate smoothly. The sub-lock position hole (22) is not continuous with the sub-lock position hole (22) through the blocking portion (221), or its length is shorter than the length of the main lock position hole (21), thereby allowing the lock core (11) to rotate smoothly. When turning the lock core (11), the protrusion (132) of the leaf spring (13) cannot be fully inserted into the sub-lock position hole (22), and a portion of the protrusion (132) of the leaf spring (13) leans against the blocking portion (221), preventing the key from being removed from the leaf spring (13) by inserting it at an angle. Instead, the lock core (11) can be turned and returned to its original position, and the key can be removed only after the protrusion (132) of the leaf spring (13) is fully inserted into the main lock position hole (21), providing a foolproof effect.

[0018] As shown in FIG. 13, there are various arrangements and combinations depending on the position between the sub-lock position hole (22) and the blocking portion (221), and the position at which the leaf spring (13) is fitted can also be changed in various ways, making it more difficult for a thief to pick the lock, delaying the time it takes for the thief to pick the lock, attracting attention, or stopping the thief himself, thereby improving the security of the lock body (10).

[0019] Depending on the number and positions of the sub-lock position holes (22), the positions at which the protrusions (132) are fitted into the sub-lock position holes (22) will also differ, increasing the number of unexpected situations for the thief and delaying the time it takes for the thief to pick the lock.

[0020] As shown in FIG. 4, the present invention provides a lock core structure with multiple lock positions, and the number of the sub-lock position holes (22) is two, which makes it difficult to pick the lock.

[0021] Furthermore, since the main lock position hole (21) and the sub-lock position hole (22) are provided through both the top and bottom of the lock position sleeve (20), the protrusion (132) of the leaf spring (13) can be inserted upward or downward into the main lock position hole (21) and the sub-lock position hole (22). This means that a thief will need to try to push the leaf spring (13) upward or downward using the lock picking tool (30), which will delay the time it takes for the thief to pick the lock.

[0022] As shown in Figures 2 to 4, the present invention provides a lock core structure with multiple lock positions, and the leaf springs (13) change direction at intervals so that the adjacent protrusions (132) are inserted into the main lock position holes (21) or sub-lock position holes (22) alternately, either up or down.

[0023] As shown in FIG. 4, the present invention provides a lock core structure with multiple lock positions, in which the bottom end (133) of the leaf spring (13) protrudes from the bottom. When the compression width of the leaf spring (13) is too large, the bottom end (133) is inserted into the main lock position hole (21) or sub-lock position hole (22) on the other side of the lock position sleeve (20). In this case, the lock body (10) cannot be turned, which further improves security.

[0024] The above is merely one embodiment of the present invention and is not intended to limit the scope of the present invention, and all changes and modifications made within the scope of the claims of the present invention are also within the scope of the present invention. [Explanation of symbols]

[0025] 10 Lock body 11 Rock Core 111 Lock Slot 12 Spring 13 Leaf spring 131 Leaf spring hole 132 Protrusion 133 Bottom end 14 Hole section 141 Keyhole 142 Stopper 20 Lock Position Sleeve 21 Main lock position hole 22 Sublock position holes 221 Blocking Section 23 Locking groove 30 Lockpicking Tools 80 Rock Body 81 Locking Plate 82 Elastic parts 90 Lock Sleeve 91 Hook hole

Claims

1. A lock core structure having a plurality of lock positions including a lock body and a lock position sleeve, The lock body has a lock core, the lock core is provided with a plurality of lock slots, a spring and a leaf spring are accommodated in each of the lock slots, the springs are in contact between the lock slots and the leaf springs, a leaf spring hole for passing a key is provided through the leaf spring, protruding portions are provided on the top and bottom of the leaf spring, a slotted portion is provided at the front end of the lock core, a keyhole for inserting a corresponding key is provided through the slotted portion, and a stopper is provided on the inside of the bottom of the slotted portion, the lock position sleeve is placed on the outside of the lock core, and main lock position holes are provided through the top and bottom of the lock position sleeve, the springs push the leaf springs, and all of the protrusions are provided in the main lock position a lock core structure with multiple lock positions, characterized in that the lock core is further provided with at least one sub-lock position hole that fits into a hole and penetrates both the upper and lower sides of the lock position sleeve, the sub-lock position hole is parallel to the main lock position hole, and at least one blocking portion is provided in the sub-lock position hole so that the sub-lock position holes are not continuous or their length is shorter than that of the main lock position hole, thereby preventing all of the protruding portion of the leaf spring from fitting into the sub-lock position hole; a locking groove is recessed at the front end of the lock position sleeve, and the stopper is positioned in the locking groove, thereby determining the rotation direction and rotation angle range of the lock body.

2. 2. The lock core structure with multiple lock positions according to claim 1, wherein the number of said sub-lock position holes is two.

3. The lock core structure with multiple lock positions of claim 1, characterized in that the leaf spring changes direction so that adjacent protrusions are alternately fitted up or down into the main lock position hole or sub lock position hole.

4. The structure of a lock core with multiple lock positions as described in claim 1, characterized in that a lower end protrudes from the bottom of the leaf spring, and when the compression width of the leaf spring is too large, the lower end is fitted into the main lock position hole or sub lock position hole of the lock position sleeve, making it impossible to turn the lock body.

Images