Lock core structure with multiple locking positions

Abstract

This involves delaying the picking process or increasing the costs associated with picking. [Solution] A lock core structure having multiple lock positions, wherein the lock core is provided with multiple lock slots that house springs and leaf springs, a leaf spring hole for passing a key is provided between the lock slot and the leaf spring, protrusions are provided at the top and bottom of the leaf spring, a lock position sleeve is placed over the outside and a main lock position hole is provided that penetrates both the top and bottom sides, and at least one sub-lock position hole is further provided that penetrates both the top and bottom sides of the lock position sleeve, and at least one blocking part is provided parallel to the main lock position hole so that the sub-lock position holes are not continuous or their length is shorter than the length of the main lock position hole, thereby restricting the range of rotation direction and rotation angle of the lock body.

Description

Technical Field

[0001] The present invention relates to the structure of a lock core having a plurality of locking positions, and particularly to the structure of a lock core having a plurality of locking positions capable of delaying the picking time.

Background Art

[0002] As shown in FIGS. 14 and 15, the structure of a conventional lock core is provided with a plurality of lock plates (81) on a lock body (80), and elastic parts (82) are 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 formed in the lock sleeve (90). The elastic part (82) pushes the lock plate (81) with elasticity, and the top thereof is fitted into the hook hole (91), making it impossible to rotate the lock body (80). When inserting the key, all the lock plates (81) are pushed down so that they are not fitted into the hook hole (91), thereby enabling the lock body (80) to rotate smoothly. However, such a structure is widely known in the industry, and at this time, it can be picked by almost all key-opening tools.

[0003] That is, usually, if there is a certain degree of patience and time, most thieves can pick the lock. Therefore, in order to further enhance the security of the user's own lock, as much as possible, delaying the time for the thief to pick the lock or increasing the cost related to picking the lock will cause the thief to give up on their own. Or, if too much time is spent, it will attract people's attention and be reported to the police, which can improve the security of the lock.

[0004] Therefore, in view of this, the inventor of the present invention came up with the idea of the invention, designed it with many years of experience, and after many discussions, sample prototype tests, and several modifications and improvements, the present invention was completed.

Summary of the Invention

[0005] The present invention provides a lock core structure with multiple locking positions, which is effective in delaying the time it takes for a burglar to pick the lock and increasing the cost associated with picking, thereby enhancing the security of the lock.

[0006] Technical points for solving the problem The present invention provides a lock core structure having 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, each of the lock slots housing a spring and a leaf spring, the spring leaning between the lock slot and the leaf spring, a leaf spring hole for passing a key through the leaf spring being provided, protrusions being provided at the top and bottom of the leaf spring, a hole being provided at the front end of the lock core, a keyhole for inserting a corresponding key being provided through the hole being provided, and a stopper protruding from the inside of the bottom being provided, the lock position sleeve being fitted over the outside of the lock core, and each of the main lock position holes being provided on both the top and bottom sides of the lock position sleeve The spring is kicked, and the spring pushes against the leaf spring, causing all of the protrusions to fit into the main lock position hole. Furthermore, at least one sub-lock position hole is provided that penetrates both the upper and lower sides of the lock position sleeve, and 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 the length of the main lock position hole, thereby preventing all of the protrusions of the leaf spring from fitting into the sub-lock position hole. A locking groove is recessed into the front end of the lock position sleeve, and the stopper is positioned in the locking groove, thereby determining the range of rotation direction and rotation angle of the lock body.

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

[0008] Furthermore, as the leaf springs change direction at intervals, adjacent protrusions are fitted into the main lock position hole or sub-lock position hole either upward or downward, in an alternating manner.

[0009] In this case, the lower end of the leaf spring is provided protruding from the bottom, and if the compression width of the leaf spring is too large, it is preferable that the lower end be fitted into the main lock position hole or sub-lock position hole on the other side of the lock position sleeve, and that in this case the lock body cannot be rotated.

[0010] In the first main objective of the present invention, the leaf spring pushes the protrusion through the spring, causing it to fit into the main lock position hole. When a thief uses a lock-picking tool to enter the leaf spring hole and pushes in each of the leaf springs, the protrusion does not fit into the main lock position hole, and the lock body cannot be turned. However, when the lock body is turned, the spring pushes the protrusion, causing it to fit into the sub-lock position hole, so that the leaf spring is fitted in at an angle. This forces the thief to push the leaf spring again, preventing them from continuing to pick the lock, thus delaying the time it takes for the thief to pick the lock and increasing the cost of lock picking.

[0011] In 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, causing the leaf spring to drop and preventing the protrusion from fitting into the main lock position hole, allowing the lock core to rotate smoothly. The sub-lock position holes are arranged so that they are not continuous through the blocking portion, or so that their length is shorter than the length of the main lock position hole. As a result, when the lock core is rotated, the entire protrusion of the leaf spring does not fit into the sub-lock position hole. This prevents the key from being pulled out with the leaf spring tilted against the blocking portion, and instead, the lock core can be rotated back to its original position, allowing the entire protrusion of the leaf spring to fit into the main lock position hole before the key can be removed, thus providing a foolproof effect.

[0012] Other purposes, advantages, and features such as the novelty of the present invention will become more apparent from the following detailed description and related drawings. [Brief explanation of the drawing]

[0013] [Figure 1] This is a three-dimensional drawing of the present invention. [Figure 2] This is an exploded view of the present invention. [Figure 3] This is a plan view of the present invention. [Figure 4] These are cross-sectional views of the present invention taken from A-A, B-B, and C-C in Figure 3. [Figure 5] This is a cross-sectional view taken from D-D within the cross-sectional view taken from B-B in Figure 4 of the present invention. [Figure 6] This is a schematic diagram showing the state when the present invention is forcibly unlocked. [Figure 7] This is a schematic diagram showing the retracted state of the leaf spring of the present invention. [Figure 8] These are cross-sectional views from A-A and B-B showing the obstruction configuration of the lock position sleeve of the present invention. [Figure 9] This is a cross-sectional view taken from E-E within the cross-sectional view taken from B-B in Figure 8 of the present invention. [Figure 10] These are cross-sectional views from A-A and B-B showing other forms of interference with the lock position sleeve of the present invention. [Figure 11] This is a schematic diagram showing the state when the present invention is unlocked with the correct key. [Figure 12] This is a side cross-sectional view showing the state when the present invention is unlocked with the correct key. [Figure 13] This is a schematic diagram showing another embodiment of the lock position sleeve of the present invention. [Figure 14] This is an exploded view of the structure of a conventional lock core. [Figure 15] This is a front cross-sectional view of the structure of a conventional lock core. [Modes for carrying out the invention]

[0014] To ensure a thorough understanding and recognition of the purpose, features, and effects of this invention, the following will be described in detail with reference to the drawings in the [Brief Description of the Drawings].

[0015] First, as shown in Figures 1 to 5, the present invention provides a lock core structure having multiple lock positions, the structure including a lock body (10) and a lock position sleeve (20), the lock body (10) having a lock core (11), the lock core (11) being provided with multiple lock slots (111), each of which houses a spring (12) and a leaf spring (13), the spring (12) leaning between the lock slot (111) and the leaf spring (13), and a plate for passing the key through. A spring hole (131) is provided through the leaf spring (13), and protrusions (132) are provided protruding from the top and bottom of the leaf spring (13), a hole (14) is provided at the front end of the lock core (11), a keyhole (141) for inserting a corresponding key is provided through the hole (14), and a stopper (142) is provided protruding from the inside of the bottom thereof, the lock position sleeve (20) is placed over the outside of the lock core (11), and the lock position sleeve (20) is provided on both the top and bottom sides. Each is provided with a main lock position hole (21), the spring (12) pushes against the leaf spring (13), and all of the protrusions (132) are fitted into the main lock position hole (21), and at least one sub-lock position hole (22) is provided that penetrates both the upper and lower sides of the lock position sleeve (20), 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 doing so, the sub-lock position holes (22) are not continuous, or their length is shorter than the length of the main lock position hole (21), so that the entire protrusion (132) of the leaf spring (13) cannot be fitted into the sub-lock position holes (22), a locking groove (23) is recessed into the front end of the lock position sleeve (20), and the stopper (142) is positioned within the locking groove (23), thereby determining the range of rotation direction and rotation angle of the lock body (10).

[0016] As shown in FIGS. 6 to 10, according to the above structure, the leaf spring (13) presses the protrusion (132) through the spring (12) and fits it into the main lock position hole (21). When a thief uses a key-opening tool (30) to enter the leaf spring hole (131) and push each leaf spring (13), the protrusion (132) cannot be fitted into the main lock position hole (21), and the lock body (10) cannot be rotated. However, when the lock body (10) is rotated, the spring (12) presses the protrusion (132) and fits it into the sub-lock position hole (22). As a result, the leaf spring (13) is fitted in an inclined manner, so that the thief has to push the leaf spring (13) again and cannot continue picking, which delays the time for the thief to pick and increases the cost associated with picking.

[0017] Also, as shown in FIGS. 11 to 13, when the correct key is inserted from the keyhole (141) into the leaf spring hole (131), the spring (12) is pushed, the leaf spring (13) is lowered, and the protrusion (132) is not fitted into the main lock position hole (21), so that the lock core (11) can be smoothly rotated. By making the sub-lock position hole (22) discontinuous through the blocking portion (221) or making its length shorter than the length of the main lock position hole (21), when the lock core (11) is rotated, the protrusions (132) of the leaf spring (13) cannot all be fitted into the sub-lock position hole (22), and a part of the protrusion (132) of the leaf spring (13) leans against the blocking portion (221), preventing the key from being pulled out in a state where the key is inserted as if the leaf spring (13) is tilted. Instead, the lock core (11) can be rotated back to its original position, and the key can be pulled out only after all the protrusions (132) of the leaf spring (13) are fitted into the main lock position hole (21), thus obtaining a foolproof effect.

[0018] As shown in FIG. 13, there are various arrangements and combinations according to the position between the sub-lock position hole (22) and the blocking portion (221). The position where the sub-lock position hole (22) is fitted into the leaf spring (13) also varies, making it difficult for a thief to pick the lock, delaying the time for the thief to pick the lock, attracting people's attention, or causing the thief to stop himself, thereby enhancing the anti-theft performance of the lock body (10).

[0019] Depending on the number and position of the sub-lock position holes (22), the position where the protrusions (132) are fitted into the sub-lock position holes (22) also varies, increasing unexpected situations for the thief and delaying the time for the thief to pick the lock.

[0020] As shown in Figure 4, the present invention provides a lock core structure having multiple lock positions, and the number of sub-lock position holes (22) is two, which makes picking the lock somewhat difficult.

[0021] Furthermore, since the main lock position hole (21) and sub-lock position hole (22) are provided through both the upper and lower sides of the lock position sleeve (20), the protruding portion (132) of the leaf spring (13) can be fitted into the main lock position hole (21) and sub-lock position hole (22) either upward or downward. This means that a thief would need to try pushing the leaf spring (13) upward or downward with the lock-picking tool (30), thus delaying 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 having multiple lock positions, in which the leaf springs (13) change direction at intervals so that adjacent protrusions (132) are fitted into the main lock position hole (21) or sub-lock position hole (22) either upward or downward, so that they are staggered.

[0023] As shown in Figure 4, the present invention provides a lock core structure having multiple lock positions, wherein the lower end (133) is provided protruding from the bottom of the leaf spring (13), and if the compression width of the leaf spring (13) is too large, the lower end (133) can be fitted into the main lock position hole (21) or sub-lock position hole (22) on the other side of the lock position sleeve (20), and in this case the lock body (10) cannot be rotated, thereby increasing the security level.

[0024] The above is merely one embodiment of the present invention and does not limit the scope of the invention. That is, changes and modifications made within the scope of the claims of the present invention should also fall within the scope of the invention. [Explanation of Symbols]

[0025] 10 Lock body 11 Rock Core 111 Lock Slots 12 springs 13. Leaf spring 131 Leaf spring holes 132 Protrusion 133 Bottom end 14 Hole section 141 Keyhole 142 Stopper 20 Lock Position Sleeves 21 Main lock position holes 22 sub-lock position holes 221 Blocking section 23 Locking groove 30 Lockpicking Tools 80 Rock Body 81 Locking plate 82 Elastic parts 90 lock sleeves 91 Hanging holes

Claims

1. A lock core structure comprising a lock body and a lock position sleeve, and having multiple lock positions, The lock body has a lock core, the lock core is provided with a plurality of lock slots, each of the lock slots houses a spring and a leaf spring, the spring leans between the lock slot and the leaf spring, a leaf spring hole for passing a key is provided through the leaf spring, protrusions are provided on the top and bottom of the leaf spring, a hole is provided at the front end of the lock core, a keyhole for inserting the corresponding key is provided through the hole, and a stopper is provided protruding from the inside of the bottom, the lock position sleeve is placed over the outside of the lock core, main lock position holes are provided on both the top and bottom sides of the lock position sleeve, the spring pushes the leaf spring, and all of the protrusions are positioned in the main lock position A lock core structure having multiple lock positions, characterized in that the leaf spring is fitted into a hole, and at least one sub-lock position hole is further provided that 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 the length of the main lock position hole, thereby preventing the entire protruding portion of the leaf spring from being fitted into the sub-lock position hole, a locking groove is recessed into the front end of the lock position sleeve, and the stopper is positioned in the locking groove, thereby determining the range of rotation direction and rotation angle of the lock body.

2. The lock core structure having multiple lock positions according to claim 1, characterized in that the number of sub-lock position holes is two.

3. The lock core structure of 1, characterized in that the leaf springs change direction at intervals, so that adjacent protrusions are fitted into the main lock position hole or sub-lock position hole in an alternating manner, either upward or downward.

4. The lock core structure of claim 1, which has multiple lock positions, characterized in that the lower end is provided protruding from the bottom of the leaf spring, 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, thereby preventing the lock body from being rotated.

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