Double-lug strong-base blade lock

Abstract

The utility model discloses a double-lug strong-base blade lock which comprises a protective shell, a shell, a lock cylinder, a key, a key hole and a lock cover. The blade groove is formed in the side face of the lock cylinder; the pair of symmetrical blades is mounted in the blade grooves in a sliding manner; the strong torsion preventing structure is used for protecting the lock cylinder from being damaged by strong torsion, and illegal opening is avoided; a plurality of parallel blade grooves are formed in the lock cylinder at intervals in the axial direction of the lock cylinder. Due to the arrangement of the strong torsion preventing structure, when the lock cylinder is subjected to strong torsion, the torsion generated by the strong torsion is borne by the shell, the lock cylinder and the locking rod together, and therefore the purpose of improving the torsional strength is achieved; by arranging an anti-drilling piece, the lock cylinder can be protected, and the lock cylinder is prevented from being damaged; through the arrangement of the buffer spring, the buffer cavity and the buffer pad, direct impact and friction between the positioning block and the V-shaped groove can be reduced in the unlocking process, so that the overall durability is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lock cores, in particular to a double-ear strong-base blade lock. Background Art

[0002] The lock core is the main part that controls the opening of the lock and is the heart of the lock. It refers to the core part that can rotate with the key and drive the bolt to move. The main function of the lock core is to transmit torque from the head, thereby driving other components of the lock to achieve unlocking and locking. The head structures of the lock cores of padlocks, drawer locks, door locks, and bicycle locks are different, and the ways of transmitting torque are also different, but the functions are the same.

[0003] For example, a Chinese utility model patent with the publication number CN218522462U, a blade lock, adopts an internal and external double-tooth pattern structure, which further increases the password quantity of the lock. In addition, the positions of the blades of this blade lock do not need to be fixed and can be interchanged with each other, making the assembly easier, reducing the mutual opening rate of the blade lock, and improving the anti-theft performance. However, such a structure still has the following several significant defects:

[0004] 1. When the lock core is subjected to strong torsion, due to the lack of an effective anti-torsion protection structure inside, the blades inside the lock are extremely vulnerable to damage;

[0005] 2. There are serious security defects. When it is damaged by a drill by relevant personnel, the lock core has no protection, and the drill bit can easily contact and drill into the inside of the lock core, thus quickly destroying the structure of the lock core, causing the lock to lose its anti-theft function, and posing a great threat to the safety and property of the user;

[0006] 3. The blades are prone to damage during use, which not only affects their anti-theft performance, but also shortens the service life, increases the maintenance or replacement frequency, and brings inconvenience and losses to users. Summary of the Invention

[0007] The utility model aims to solve one of the technical problems existing in the prior art.

[0008] The present application provides a double-ear strong-base blade lock, including a protective shell, an outer shell, a lock core, a key, a keyhole, and a lock cover;

[0009] It further includes:

[0010] A blade groove, which is arranged on the side surface of the lock core;

[0011] A pair of symmetric blades, which are slidably installed in the blade groove;

[0012] An anti-strong torsion structure, which is used to protect the lock core from strong torsion damage and prevent illegal opening;

[0013] Among them, a plurality of parallel blade grooves are arranged on the lock core at intervals along its axial direction.

[0014] A pair of the blades each include:

[0015] A row of pieces, which are slidably installed in the blade grooves;

[0016] A jack, which is arranged in the middle of the row of pieces;

[0017] Lock teeth, which are arranged on the jack.

[0018] A pair of the blades each further include:

[0019] A convex block, which is arranged on the side at the bottom end of the row of pieces;

[0020] A blade spring, which is used for movably connecting a pair of the mutually attached blades.

[0021] A pair of the blades each further include:

[0022] A V-shaped groove, which is arranged in the middle at the top end of the row of pieces.

[0023] The anti-strong torsion structure includes:

[0024] A sliding groove, which is arranged at the top end of the lock core and is communicated with the V-shaped groove; A locking rod, which is slidably installed in the sliding groove;

[0025] A card slot, which is arranged on the outer shell;

[0026] Among them, the locking rod can slide in the sliding groove.

[0027] The anti-strong torsion structure further includes:

[0028] A positioning block, which is arranged at one end of the locking rod facing away from the card slot;

[0029] A pair of clamping blocks, which are respectively arranged on both sides at one end of the locking rod facing the card slot. The anti-strong torsion structure further includes:

[0030] A magnetic block, which is fixedly connected to the outer shell;

[0031] A magnetic piece, which is arranged between a pair of the clamping blocks;

[0032] Among them, the magnetic piece and the magnetic block have the same polarity.

[0033] The anti-strong torsion structure further includes:

[0034] A multi-ear structure, which is fixedly connected to the top end of the protective shell;

[0035] Among them, the protective shell is fixedly connected to the external panel through the multi-ear structure. It further includes:

[0036] An anti-drilling piece is disposed at the entrance of the keyhole.

[0037] It further includes:

[0038] A buffer cavity is disposed at the strip near the V-shaped groove;

[0039] A buffer spring is disposed in the buffer cavity;

[0040] A buffer pad is fixedly connected to the V-shaped groove.

[0041] The beneficial effects of the present utility model are as follows:

[0042] 1. Through the setting of the anti-strong torsion structure, when the keyhole of the lock core is subjected to strong torsion, the positioning block will not sink into the lock core to damage the strip with poor strength. The torsion generated by the strong twist is jointly borne by the outer shell, the lock core, and the locking rod, so as to achieve the purpose of improving the anti-torsion strength;

[0043] 2. By setting the anti-drilling piece, it can play a protective role for the lock core and effectively avoid the lock core from being damaged;

[0044] 3. Through the setting of the buffer spring and the buffer cavity, during the unlocking process, the direct impact and friction between the positioning block and the V-shaped groove can be reduced. Through the setting of the buffer pad, the impact force during impact can be further absorbed, thereby significantly improving its overall durability and service life. Description of the Drawings

[0045] Figure 1 It is a schematic structural diagram of a double-ear strong-base blade lock in an embodiment of the present application;

[0046] Figure 2 It is an exploded view of a double-ear strong-base blade lock in an embodiment of the present application;

[0047] Figure 3 It is a schematic structural diagram of a blade in an embodiment of the present application;

[0048] Figure 4 It is a schematic structural diagram of a locking rod in an embodiment of the present application;

[0049] Figure 5 It is Figure 3 The internal structural schematic diagram at A in

[0050] Reference Signs

[0051] 1 - protective shell, 2 - outer shell, 3 - lock core, 4 - key, 5 - keyhole, 6 - blade groove, 7 - blade, 701 - row of blades, 702 - jack, 703 - lock teeth, 704 - bump, 705 - blade spring, 706 - V - shaped groove, 8 - anti - strong - torque structure, 801 - sliding groove, 802 - locking rod, 803 - card slot, 804 - positioning block, 805 - clamping block, 806 - magnetic block, 807 - magnetic block, 808 - multi - ear structure, 9 - anti - drilling piece, 10 - buffer cavity, 11 - buffer spring, 12 - buffer pad, 13 - lock cover. Detailed implementation mode

[0052] The following will clearly describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0053] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0054] The following will, with reference to the accompanying drawings, elaborate on a double - ear strong - base blade lock provided by the embodiments of the present application through specific embodiments and their application scenarios.

[0055] Embodiment 1:

[0056] As Figures 1 to 4 shown, the embodiment of the present application provides a double - ear strong - base blade lock, including a protective shell 1, an outer shell 2, a lock core 3, a key 4, a keyhole 5, a lock cover 13; further including a blade groove 6, which is arranged on the side of the lock core 3; a pair of symmetric blades 7, which are slidably installed in the blade groove 6; an anti - strong - torque structure 8, which is used to protect the lock core 3 from strong - torque damage and prevent illegal opening; wherein, a plurality of parallel blade grooves 6 are arranged at intervals along the axial direction of the lock core 3.

[0057] Furthermore, each of the pair of blades 7 includes a row of blades 701, which is slidably installed in the blade groove 6; a jack 702, which is arranged in the middle of the row of blades 701; and lock teeth 703, which are arranged on the jack 702.

[0058] Furthermore, each pair of the blades 7 further includes a bump 704 disposed on the side of the bottom end of the blade row 701; and a blade spring 705 for movably connecting a pair of the abutted blades 7.

[0059] Furthermore, each pair of the blades 7 further includes a V-shaped groove 706 disposed in the middle of the top end of the blade row 701.

[0060] Furthermore, the strong torsion prevention structure 8 includes a sliding groove 801 disposed at the top end of the lock core 3 and communicating with the V-shaped groove 706; a locking rod 802 slidably installed in the sliding groove 801; and a clamping groove 803 disposed on the outer shell 2; wherein, the locking rod 802 can slide in the sliding groove 801.

[0061] Furthermore, the strong torsion prevention structure 8 further includes a positioning block 804 disposed at one end of the locking rod 802 facing away from the clamping groove 803; and a pair of clamping blocks 805 respectively disposed on both sides of one end of the locking rod 802 facing the clamping groove 803.

[0062] Furthermore, the strong torsion prevention structure 8 further includes a magnetic block 806 fixedly connected to the outer shell 2; and a magnetic block 807 disposed between the pair of clamping blocks 805; wherein, the magnetic block 807 has the same polarity as the magnetic block 806.

[0063] Furthermore, the strong torsion prevention structure 8 further includes a multi-ear structure 808 fixedly connected to the top end of the protective shell 1; wherein, the protective shell 1 is fixedly connected to an external panel through the multi-ear structure 808.

[0064] In this embodiment of the present application, due to the adoption of the above structure, a multi-ear structure 808 is fixedly installed on the side wall at the front end of the protective shell 1, and it can be fixed on the panel through bolts to complete multi-point fixation, ensuring the stability after installation. The lock cover 13 is fixedly connected to the outer wall of the protective shell 1, the inner wall of the protective shell 1 is fixedly connected with the outer shell 2, and the inner wall of the outer shell 2 is movably connected with the lock core 3. Four parallel blade grooves 6 are arranged at intervals along the axial direction of the lock core 3;

[0065] When the key 4 is inserted into the lock core 3, the key 4 sequentially passes through the keyhole 5 and the jacks 702 on each row of wafers 701. The teeth on the key 4 cooperate with the locking teeth 703 on the wafers 701, enabling the wafers 701 to slide within the blade groove 6 and pressing the blade spring 705 connected to the bump 704. When the key 4 is inserted in place, the V-shaped grooves 706 on all the wafers 701 are aligned with the sliding grooves 801. Under the action of the magnetic block 806, the magnetic block 807 pushes the positioning block 804 into the V-shaped groove 706 of the wafer 701. At this time, the latch 805 will disengage from the card slot 803 on the housing 2 and completely enter the lock core 3, and the lock can be opened at this time;

[0066] When the key 4 is pulled out of the lock core 3, the blade spring 705 pushes the wafer 701 to reset again. The bevel on the V-shaped groove 706 pushes the positioning block 804 to disengage it from the V-shaped grooves 706 of all the wafers 701. At this time, the latch 805 will re-engage with the card slot 803 on the housing 2, so that when the keyhole 5 of the lock core 3 is subjected to strong torsion, the positioning block 804 will not sink into the lock core 3 to damage the wafers 701 with poor strength. The torsion generated by the strong twist is jointly borne by the housing 2, the lock core 3, and the locking rod 802, so as to achieve the purpose of improving the anti-torsion strength.

[0067] Embodiment 2:

[0068] As Figure 2 shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, it further includes an anti-drill piece 9, which is arranged at the entrance of the keyhole 5.

[0069] In this embodiment of the present application, due to the adoption of the above structure, an anti-drill piece 9 is embedded between the lock core 3 and the lock cover 13. The anti-drill piece 9 can protect the part of the lock core 3 other than the keyhole 5 and prevent the lock core 3 from being violently damaged by tools such as electric drills, thereby improving the safety performance of the blade lock.

[0070] Embodiment 3:

[0071] As Figures 2 to 5 shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, it further includes a buffer cavity 10, which is arranged near the V-shaped groove 706 of the wafer 701; a buffer spring 11, which is arranged in the buffer cavity 10; and a buffer pad 12, which is fixedly connected to the V-shaped groove 706.

[0072] In this embodiment of the present application, due to the adoption of the above structure, during the unlocking process, the magnetic block 806 pushes the magnetic block 807, and the positioning block 804 is pushed into the V-shaped groove 706. During the pushing process, since a buffer cavity 10 is provided at the V-shaped groove 706 and a buffer spring 11 is provided in the buffer cavity 10, it can effectively relieve the direct impact and friction between the positioning block 804 and the V-shaped groove 706, greatly enhancing the durability and service life of the structure. A buffer pad 12 is also provided on the V-shaped groove 706 to further absorb the impact force when the positioning block 804 impacts. Under the double protection, higher stability and service life are ensured.

[0073] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0074] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A double-ear strong-base blade lock, comprising a protective shell (1), an outer shell (2), a lock core (3), a key (4), a keyhole (5), and a lock cover (13), characterized in that, Further included are: A blade groove (6), which is arranged on the side of the lock core (3); A pair of symmetric blades (7), which are slidably installed in the blade groove (6); An anti-strong torsion structure (8), which is used to protect the lock core (3) from strong torsion damage and prevent illegal opening; Wherein, a plurality of parallel blade grooves (6) are arranged on the lock core (3) at intervals along its axial direction.

2. The double-ear strong-base blade lock according to claim 1, wherein Each of the pair of blades (7) includes: A row of blades (701), which is slidably installed in the blade groove (6); A jack (702), which is arranged in the middle of the row of blades (701); Lock teeth (703), which are arranged on the jack (702).

3. The double-ear strong-base vane lock according to claim 2, wherein Each of the pair of blades (7) further includes: A convex block (704), which is arranged on the side at the bottom end of the row of blades (701); A blade spring (705), which is used to movably connect a pair of the fitting blades (7).

4. The double-ear strong-base blade lock according to claim 2, wherein Each of the pair of blades (7) further includes: A V-shaped groove (706), which is arranged in the middle at the top end of the row of blades (701).

5. The double-ear strong-base blade lock according to claim 4, characterized in that, The anti-strong torsion structure (8) includes: A sliding groove (801), which is arranged at the top end of the lock core (3) and is communicated with the V-shaped groove (706); A locking rod (802), which is slidably installed in the sliding groove (801); A clamping groove (803), which is arranged on the outer shell (2); Wherein, the locking rod (802) can slide in the sliding groove (801).

6. The double-ear strong-base blade lock according to claim 5, characterized in that, The anti-strong torsion structure (8) further includes: A positioning block (804), which is arranged at one end of the locking rod (802) facing away from the clamping groove (803); A pair of clamping blocks (805), which are respectively arranged on both sides at one end of the locking rod (802) facing the clamping groove (803).

7. The double-ear strong foundation vane lock according to claim 6, wherein, The anti-strong torsion structure (8) further includes: A magnetic block (806), which is fixedly connected to the outer shell (2); A magnetic block (807), which is arranged between the pair of clamping blocks (805); Wherein, the magnetic block (807) has the same polarity as the magnetic block (806).

8. A pair of ears strong foundation blade lock according to claim 1, characterized in that, The anti-strong torsion structure (8) further includes: A multi-ear structure (808), which is fixedly connected to the top end of the protective shell (1); Wherein, the protective shell (1) is fixedly connected to the external panel through the multi-ear structure (808).

9. The double-ear strong-base blade lock according to claim 1, characterized in that, Further included are: An anti-drilling piece (9), which is arranged at the entrance of the keyhole (5).

10. A binaural strong foundation blade lock according to claim 4, characterized in that, Further included are: A buffer cavity (10), which is arranged at the position where the row of blades (701) is close to the V-shaped groove (706); A buffer spring (11), which is arranged in the buffer cavity (10); A buffer pad (12), which is fixedly connected to the V-shaped groove (706).

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