Anti-theft security lock

Abstract

This utility model discloses an anti-theft security lock, including a lock shell, a lock cylinder, a lock rod, and a locking block. The lock cylinder and lock shell together form a keyhole. The lock cylinder has a lock cylinder hole, and the keyhole is located on one axial side of the lock cylinder hole and communicates with it. The lock rod can move along the lock cylinder hole to the unlocked position. The lock rod has a slot. When the lock rod moves to the unlocked position, the locking block can move into the slot, allowing the lock cylinder to rotate relative to the lock shell. When the lock rod moves away from the unlocked position, the locking block moves away from the slot and abuts against the lock rod, restricting the rotation of the lock cylinder relative to the lock shell. This utility model, by configuring the keyhole on one axial side of the lock cylinder hole, allows the lock rod to move to the unlocked position by abutting against the paired key when the paired key is inserted into the keyhole, enabling the locking block to move into the slot and unlock the lock. It has the advantages of simplified lock rod structure, compact and reasonable internal lock structure, and simple assembly. Furthermore, because the lock rod moves to the unlocked position by abutting against the paired key, it has the advantages of stable and precise movement.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to anti-theft security locks. Background Technology

[0002] A lock is a device installed on a door for anti-theft purposes. Existing locks include a lock case, lock cylinder, lock rod, and locking block. The lock cylinder is rotatably connected inside the lock case, and the lock rod is slidably connected to the lock cylinder. The lock case has a keyhole located on the radial side of the lock rod. The lock rod has an unlocking block that extends into the keyhole. The locking block is located on the side of the lock rod opposite to the unlocking block. The lock rod has a locking groove into which the locking block is inserted. A key paired with the lock has an unlocking track. When the key is inserted into the keyhole, the unlocking block moves along the unlocking track, causing the lock rod to move to the unlocked position. When the lock rod moves to the unlocked position, the locking block can move into the locking groove, allowing the lock cylinder to rotate relative to the lock case, thus unlocking the lock. When the key is removed from the keyhole, the lock rod moves away from the unlocked position, and the locking block moves away from the locking groove and abuts against the lock rod, restricting the rotation of the lock cylinder, thus locking the lock. Existing locks achieve locking and unlocking by configuring a locking block on one radial side of the lock bar and an unlocking block and keyhole on the other radial side of the lock bar. This results in a complex lock bar structure, a complex internal lock structure, and a high degree of assembly difficulty. Summary of the Invention

[0003] The purpose of this utility model is to provide an anti-theft security lock to solve the problems of existing locks that achieve locking and unlocking by configuring a locking block on one radial side of the lock rod and an unlocking block and keyhole on the other radial side of the lock rod, resulting in a complex lock rod structure, complex internal lock structure, and high assembly difficulty.

[0004] This utility model is achieved through the following technical solution:

[0005] An anti-theft security lock includes a lock shell, a lock cylinder, a lock rod, and a locking block. The lock cylinder and the lock shell together form a keyhole. The lock cylinder has a lock cylinder hole. The keyhole is located on one axial side of the lock cylinder hole and communicates with the lock cylinder hole. The lock rod can move along the lock cylinder hole to an unlocked position. The lock rod has a slot. When the lock rod moves to the unlocked position, the locking block can move into the slot, allowing the lock cylinder to rotate relative to the lock shell. When the lock rod moves away from the unlocked position, the locking block moves away from the slot and abuts against the lock rod, restricting the rotation of the lock cylinder relative to the lock shell.

[0006] Furthermore, the lock cylinder hole extends radially along the lock cylinder, and the locking block extends axially along the lock cylinder and moves radially in the lock rod; there are several lock rods, which are spaced apart axially in the lock cylinder; when the lock rods move to the unlock position, the slots are flush with the lock cylinder axially; when any lock rod moves away from the unlock position, the locking block moves away from the slots and abuts against the lock rods to restrict the lock cylinder from rotating relative to the lock housing.

[0007] Furthermore, when the locking rods move away from the unlocking position, they extend into the keyhole and abut against the lock housing, causing the slots to be staggered in the radial direction of the lock cylinder.

[0008] Furthermore, the end of the locking rod facing the keyhole is conical.

[0009] Furthermore, the slot extends circumferentially around the locking rod.

[0010] Furthermore, a first elastic element is provided inside the lock cylinder hole, and the lock rod is driven by the first elastic element to move away from the unlock position.

[0011] Furthermore, a second elastic element is provided between the lock cylinder and the locking block, and the locking block is driven by the second elastic element to move away from the slot.

[0012] Furthermore, the lock housing has a limiting groove for the locking block to insert into when the locking block moves away from the slot.

[0013] Furthermore, the locking block has a locking plate and a locking pin that move synchronously in the radial direction of the locking rod. The locking plate can move into or out of the slot, and the locking pin can rotate relative to the locking plate. When the locking plate moves into the slot, the locking pin moves away from the limiting groove and abuts against the lock housing. When the locking pin moves into the limiting groove, the locking plate moves away from the slot and abuts against the locking rod.

[0014] The advantage of this technical solution lies in that, by configuring a keyhole on one axial side of the lock cylinder hole (lock bar), the lock bar moves to the unlocked position by abutting against the matched key when the matched key is inserted into the keyhole, allowing the locking block to move into the slot and unlock the lock. Compared with existing locks, this anti-theft security lock has the advantages of a simplified lock bar structure, a compact and reasonable internal structure, and simple assembly. Furthermore, since the lock bar moves to the unlocked position by abutting against the matched key—that is, the range of movement of the lock bar is determined by the depth of the unlocking slot—it offers the advantages of stable and precise movement compared to existing locks that rely on a sliding engagement between the unlocking track and the unlocking block to move the lock bar to the unlocked position. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a perspective view of the anti-theft security lock according to an embodiment of this utility model;

[0018] Figure 2 This is a top view of the anti-theft security lock according to an embodiment of this utility model;

[0019] Figure 3 yes Figure 2 Cross-sectional view at point AA (lock bar moved to the unlocked position);

[0020] Figure 4 yes Figure 2 Cross-sectional view at point BB (lock lever moved to unlocked position);

[0021] Figure 5 yes Figure 2 Cross-sectional view at point BB (lock bar moved away from the unlock position);

[0022] Figure 6 This is an exploded view of the anti-theft security lock according to an embodiment of this utility model;

[0023] Figure 7 This is a perspective view of a matching key used in conjunction with the anti-theft security lock of this utility model embodiment. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Figure 1-6As shown, the anti-theft security lock includes a lock shell 1, a lock cylinder 2, a lock rod 3, and a locking block 4. The lock cylinder 2 and the lock shell 1 together form a keyhole 6 for inserting a matching key 5. The lock cylinder 2 has a lock cylinder hole 201 for accommodating the lock rod 3. The keyhole 6 is located on one axial side of the lock cylinder hole 201 and communicates with the lock cylinder hole 201. The lock rod 3 can move along the lock cylinder hole 201 to the unlocked position. The lock rod 3 has a slot 301. When the lock rod 3 moves to the unlocked position, the locking block 4 can move into the slot 301 to allow the lock cylinder 2 to rotate relative to the lock shell 1. When the lock rod 3 moves away from the unlocked position, the locking block 4 moves away from the slot 301 and abuts against the lock rod 3 to restrict the rotation of the lock cylinder 2 relative to the lock shell 1.

[0026] like Figure 7 As shown, the matching key 5 used in conjunction with this anti-theft security lock has an unlocking slot 501 that engages with the locking rod 3. When the matching key 5 is inserted into the keyhole 6, it moves the locking rod 3 to the unlocking position. When the lock cylinder 2 rotates relative to the lock housing 1, the locking block 4 moves into the slot 301 to release the lock housing 1, thus unlocking the lock. When the matching key 5 is pulled out of the keyhole 6, the locking rod 3 moves away from the unlocking position, causing the locking block 4 to move away from the slot 301 and abut against the locking rod 3, restricting the rotation of the lock cylinder 2 relative to the lock housing 1, thus locking the lock.

[0027] This embodiment provides an anti-theft security lock to solve the problems of existing locks that use a locking block on one radial side of the lock rod and an unlocking block and keyhole on the other radial side for locking and unlocking, resulting in a complex lock rod structure, complex internal structure, and difficult assembly. The solution is to configure a keyhole 6 on the axial side of the lock cylinder hole 201 (lock rod 3), allowing the lock rod 3 to move to the unlocking position by abutting against the mating key 5 when the mating key 5 is inserted into the keyhole 6, thus enabling the locking block 4 to move into the slot 301 to unlock the lock. Compared to existing locks, this anti-theft security lock has the advantages of a simplified lock rod 3 structure, a compact and reasonable internal structure, and simple assembly. Furthermore, since the lock rod 3 moves to the unlocking position by abutting against the mating key 5, meaning the range of movement of the lock rod 3 is determined by the depth of the unlocking slot 501, it offers the advantages of stable and precise movement compared to existing locks that use an unlocking track and unlocking block to slide to the unlocking position.

[0028] In this embodiment of the invention, the lock cylinder hole 201 extends radially along the lock cylinder 2, and the locking block 4 extends axially along the lock cylinder 2 and moves radially along the locking rod 3. There are several locking rods 3, spaced apart axially along the lock cylinder 2. When the locking rods 3 move to the unlocked position, several slots 301 are aligned axially along the lock cylinder 2 for the locking block 4 to enter. When any locking rod 3 moves away from the unlocked position, the locking block 4 moves away from the slots 301 and abuts against the locking rods 3, restricting the rotation of the lock cylinder 2 relative to the lock housing 1. This arrangement, by configuring several locking rods 3, such that when several locking rods 3 move to the unlocked position, several slots 301 are aligned axially along the lock cylinder 2 for the locking block 4 to enter, and when any locking rod 3 moves away from the unlocked position, the locking block 4 moves away from the slots 301 and abuts against the locking rods 3, restricting the rotation of the lock cylinder 2 relative to the lock housing 1, gives the anti-theft security lock excellent anti-theft performance.

[0029] In this embodiment of the invention, when a plurality of locking rods 3 are moved away from the unlocking position, they extend into the keyhole 6 and abut against the lock housing 1, causing a plurality of slots 301 to be staggered in the radial direction of the lock cylinder 2. This arrangement, by configuring the plurality of slots 301 to extend into the keyhole 6 and abut against the lock housing 1 when moved away from the unlocking position, and by staggering the plurality of slots 301 in the radial direction of the lock cylinder 2, gives the anti-theft security lock excellent anti-theft performance.

[0030] In this embodiment of the invention, the locking rod 3 is cylindrical in shape, and the end of the locking rod 3 facing the keyhole 6 is conical. This configuration, by making the end of the locking rod 3 facing the keyhole 6 conical, facilitates the insertion of the locking rod 3 into the unlocking slot 501 of the mating key 5.

[0031] In this embodiment of the utility model, when a plurality of locking rods 3 extend into the keyhole 6 and abut against the lock shell 1, they are arranged at the same height in the radial direction of the lock cylinder 2.

[0032] In this embodiment of the invention, the slot 301 extends circumferentially around the locking rod 3. This arrangement, by configuring the slot 301 to extend circumferentially around the locking rod 3, facilitates the insertion of the locking block 4 into the slot 301 when the locking rod 3 moves to the unlocked position. It prevents the locking rod 3 from rotating during movement, causing misalignment between the slot 301 and the locking block 4, which would prevent insertion.

[0033] In this embodiment of the invention, a first elastic element 7 is provided inside the lock cylinder hole 201, and the locking rod 3 is driven by the first elastic element 7 to move away from the unlocking position. Specifically, the first elastic element 7 is a spring. The above arrangement, by configuring the first elastic element 7 inside the lock cylinder hole 201, allows the locking rod 3 to move away from the unlocking position when the mating key 5 is pulled out of the keyhole 6, thereby causing the locking block 4 to move away from the slot 301 and achieving the locking of the lock.

[0034] In this embodiment of the invention, a second elastic element 8 is provided between the lock cylinder 2 and the locking block 4. The locking block 4 is driven by the second elastic element 8 to move away from the slot 301. Specifically, the second elastic element 8 is a spring. This arrangement, by configuring the second elastic element 8 between the lock cylinder 2 and the locking block 4, allows the locking block 4 to quickly move away from the slot 301 when the mating key 5 is pulled out of the keyhole 6. This allows the locking rod 3 to quickly move away from the unlocking position and abut against the locking block 4, restricting the rotation of the lock cylinder 2 and achieving locking of the lock.

[0035] In this embodiment of the invention, the lock housing 1 has a limiting groove 101, which allows the locking block 4 to be inserted when it moves away from the slot 301. This arrangement, by configuring the limiting groove 101 on the lock housing 1 to allow the locking block 4 to be inserted when it moves away from the slot 301, effectively restricts the rotation of the lock cylinder 2 after the locking block 4 moves away from the slot 301.

[0036] In this embodiment of the invention, the locking block 4 has a locking plate 401 and a locking pin 402 that move synchronously in the radial direction of the locking rod 3. The locking plate 401 can move into or out of the slot 301, and the locking pin 402 can rotate relative to the locking plate 401. When the locking plate 401 moves into the slot 301, the locking pin 402 moves away from the limiting groove 101 and abuts against the lock housing 1. When the locking pin 402 moves into the limiting groove 101, the locking plate 401 moves away from the slot 301 and abuts against the locking rod 3. The above arrangement, by configuring the locking block 4 with a locking plate 401 and a locking pin 402, facilitates the movement of the locking block 4 into or out of the limiting groove 101.

[0037] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered as protected by this utility model.

Claims

1. An anti-theft security lock, characterized in that, The lock includes a lock case, a lock cylinder, a lock rod, and a locking block. The lock cylinder and the lock case together form a keyhole. The lock cylinder has a lock cylinder hole. The keyhole is located on one axial side of the lock cylinder hole and communicates with the lock cylinder hole. The lock rod can move along the lock cylinder hole to the unlocked position. The lock rod has a slot. When the lock rod moves to the unlocked position, the locking block can move into the slot, allowing the lock cylinder to rotate relative to the lock case. When the lock rod moves away from the unlocked position, the locking block moves away from the slot and abuts against the lock rod, restricting the rotation of the lock cylinder relative to the lock case.

2. The anti-theft security lock according to claim 1, characterized in that, The lock cylinder hole extends radially along the lock cylinder, and the locking block extends axially along the lock cylinder and moves radially along the lock rod; There are several locking rods, which are spaced apart along the axial direction of the lock cylinder. When the locking rods are moved to the unlocked position, the slots are flush with the axial direction of the lock cylinder. When any of the locking rods moves away from the unlocked position, the locking block moves away from the slots and abuts against the locking rods to restrict the rotation of the lock cylinder relative to the lock case.

3. The anti-theft security lock according to claim 2, characterized in that, When the locking rods move away from the unlocked position, they extend into the keyhole and abut against the lock housing, causing the slots to be staggered in the radial direction of the lock cylinder.

4. The anti-theft security lock according to claim 1, characterized in that, The end of the locking bar facing the keyhole is conical.

5. The anti-theft security lock according to claim 1, characterized in that, The slot extends circumferentially around the locking rod.

6. The anti-theft security lock according to claim 1, characterized in that, The lock cylinder hole is provided with a first elastic element, and the lock rod is driven by the first elastic element to move away from the unlock position.

7. The anti-theft security lock according to claim 1, characterized in that, A second elastic element is provided between the lock cylinder and the locking block, and the locking block is driven by the second elastic element to move away from the slot.

8. The anti-theft security lock according to claim 1, characterized in that, The lock housing has a limiting groove for the locking block to insert into when the locking block moves away from the slot.

9. The anti-theft security lock according to claim 8, characterized in that, The locking block has a locking plate and a locking pin that move synchronously in the radial direction of the locking rod. The locking plate can move into or out of the slot, and the locking pin can rotate relative to the locking plate. When the locking plate moves into the slot, the locking pin moves away from the limiting groove and abuts against the lock housing. When the locking pin moves into the limiting groove, the locking plate moves away from the slot and abuts against the locking rod.

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