Key and lock
By designing a key structure with asymmetric two-row unlocking teeth and strip holes, the problem of easy reproduction of single-row tooth keys is solved, and the safety of the lock is improved.
Patent Information
- Application Number
- CN202422449094.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-10
AI Technical Summary
In the prior art, single-row tooth keys are easily replicated, resulting in low safety of the lock.
A key is designed, and its opening part has two asymmetric rows of unlocking teeth and bar-shaped holes, which increases the difficulty of replicating. A lock is equipped with a lock hole structure corresponding to the key.
It improves the security of keys and locks, increases the difficulty of replicas, and enhances the anti-theft performance.
Smart Images
Figure CN223177296U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to a key and a lock. Background Art
[0002] Locks are common anti-theft tools, and pin tumbler locks are widely used due to their simple and practical structure. The structures of pin tumbler locks are roughly the same, that is, a group of cylindrical pins are installed in the pin holes of the lock core, and corresponding depths of key cuts are made on the key. The unlocking methods are also roughly the same, that is, the corresponding pins are moved up and down by the different heights of the key cuts, so that the height of each lock core pin is at the interface between the lock shell and the lock core, and then the key is rotated to drive the lock core to achieve the purpose of unlocking.
[0003] Most of the keys corresponding to such locks are single-row teeth. After the single-row tooth key is obtained by someone with ill intentions, it can be directly replicated on the front or the back, and the shape of the key teeth can be obtained. The replication difficulty is relatively low, that is, an ordinary locksmith can complete the replication with the most common tools, so the security is relatively low. Summary of the Utility Model
[0004] In view of this, one of the purposes of the utility model is to provide a key to solve the technical problem in the prior art that for a single-row tooth key, an ordinary locksmith can complete the replication with the most common tools, resulting in relatively low security.
[0005] Another purpose of the utility model is to provide a lock containing the key.
[0006] To achieve the above purpose, the utility model provides a key, which includes a handle part and an opening part extending outward from the handle part. The opening part is a sheet-like structure with a preset thickness. A strip-shaped hole extending along the length direction is provided on the thickness wall of the opening part. Unlocking teeth are provided on both sides of the strip-shaped hole. The unlocking teeth are asymmetrically arranged, and the length of the strip-shaped hole is greater than the length of the unlocking teeth.
[0007] According to a preferred embodiment, both ends of the strip-shaped hole extend to the outside of the unlocking teeth.
[0008] According to a preferred embodiment, the inner walls of both ends of the strip-shaped hole have inclined slopes.
[0009] According to a preferred embodiment, the two sides of the strip-shaped hole are respectively a first wall and a second wall. A first unlocking tooth is correspondingly provided on the first wall, and a second unlocking tooth is correspondingly provided on the second wall. The first unlocking tooth and the second unlocking tooth are asymmetrically arranged.
[0010] According to a preferred embodiment, the length of the first unlocking tooth is less than the length of the first wall, and the length of the second unlocking tooth is less than the length of the second wall.
[0011] According to a preferred embodiment, the first unlocking tooth includes a plurality of concave and convex tooth units of different sizes, and the second unlocking tooth also includes a plurality of concave and convex tooth units of different sizes.
[0012] According to a preferred embodiment, alveolar sockets are provided on both sides of the opening portion, and the alveolar sockets include at least one.
[0013] According to a preferred embodiment, the alveolar sockets on both sides of the opening portion are asymmetrically arranged.
[0014] To achieve the second above-mentioned object, the present utility model provides a lock, which includes the key as described in any one of the above, and further includes a lock body. A lock core is provided in the lock body, and a lock hole adapted to the key is provided at one end of the lock core.
[0015] According to a preferred embodiment, a ball hole communicating with the lock hole is provided on the side wall of the lock core, and the position of the ball hole corresponds to that of the unlocking tooth.
[0016] The key provided by the present utility model has the following technical effects:
[0017] This kind of key includes a handle portion and an opening portion. The opening portion extends from the handle portion to one side. Different from the opening portion of a traditional key, on the thickness wall of the opening portion of the present utility model, there are strip holes extending along the length direction. Unlocking teeth are provided on both sides of the strip holes, and the unlocking teeth are asymmetrically arranged. The length of the strip hole is greater than the length of the unlocking tooth. Since there are two rows of unlocking teeth, and the unlocking teeth are asymmetric, and there is also a strip hole between the two rows of unlocking teeth, the complexity of the entire opening portion is increased. In this way, the opening portion is not easily replicated, that is, the difficulty of replication is increased, and the security of the key is improved.
[0018] The lock provided by the present utility model has the following technical effects:
[0019] This kind of lock includes a key and also includes a lock body. A lock core is provided in the lock body, and a lock hole adapted to the key is provided at one end of the lock core. Since the key has two rows of unlocking teeth, and the unlocking teeth are asymmetric, and there is also a strip hole between the two rows of unlocking teeth, the lock hole will have a corresponding structure to adapt to the key, thereby increasing the difficulty of replication, and further improving the security of the key. Description of the Drawings
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0021] Figure 1 is a side view of the key of the present invention;
[0022] Figure 2 is Figure 1 the top view of the key in
[0023] Figure 3 is Figure 1 the side view of the other side of the key in
[0024] Figure 4 is Figure 1 the cross-sectional view of the key in
[0025] Figure 5 is Figure 1 the three-dimensional structural schematic diagram of the lock core adapted to the key in
[0026] Figure 6 is Figure 5 the side view of the lock core in
[0027] Figure 7 is Figure 5 the bottom view of the lock core in
[0028] Figure 8 is Figure 5 the front view of the lock core in
[0029] Figure 9 is Figure 8 the cross-sectional view of the lock core along the B-B direction in
[0030] Among them, Figures 1 - 9 :
[0031] 1. Handle part; 2. Opening part; 21. First wall; 211. First unlocking tooth; 22. Second wall; 221. Second unlocking tooth; 23. Tooth socket; 3. Strip-shaped hole; 4. Lock core; 41. Lock hole; 42. Plug hole. Detailed implementation manners
[0032] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.
[0033] In the prior art, most of the keys corresponding to locks have single-row teeth. After such single-row teeth keys are obtained by those with ulterior motives, they can directly replicate the front or the back, and then obtain the shape of the key teeth. The replication difficulty is relatively low, that is, an ordinary locksmith can complete the replication with the most common tools. Therefore, the security is relatively low.
[0034] The following will specifically combine Figures 1 - 4 Describe in detail the structure of a preferred embodiment of the key of the present utility model.
[0035] As Figures 1 - 4 shown, it is a schematic structural diagram of a preferred embodiment of the key of the present utility model. This kind of key includes a handle part 1 and an unlocking part 2. The unlocking part 2 is used to penetrate into the keyhole 41 of the lock core 4 to complete the unlocking action, while the handle part 1 is used for grasping during the unlocking process. The unlocking part 2 is obtained by extending the handle part 1 in one direction. The handle part 1 and the unlocking part 2 are integrally formed. Among them, the unlocking part 2 is a sheet-like structure with a preset thickness. Here, the preset thickness can be determined according to actual production needs, and the present utility model does not make a limitation.
[0036] On the thickness wall of the unlocking part 2, there is a strip-shaped hole 3 extending along the length direction. On both sides of the strip-shaped hole 3 are a first wall 21 and a second wall 22 respectively. Corresponding first unlocking teeth 211 are provided on the first wall 21. The length of the first unlocking teeth 211 is less than the length of the first wall 21. Corresponding second unlocking teeth 221 are provided on the second wall 22. The length of the second unlocking teeth 221 is less than the length of the second wall 22. The first unlocking teeth 211 and the second unlocking teeth 221 are located on the same side of the strip-shaped hole 3. The length of the strip-shaped hole 3 is greater than the length of the first unlocking teeth 211 and the length of the second unlocking teeth 221, and both ends of the strip-shaped hole 3 extend to the outside of the first unlocking teeth 211 and the second unlocking teeth 221, as Figure 2 shown.
[0037] In the present utility model, since the first unlocking teeth 211 and the second unlocking teeth 221 are asymmetric, the complexity of the key is increased, and further the replication difficulty is increased.
[0038] In addition, the inner walls of both ends of the strip-shaped hole 3 have inclined slopes, which further increases the replication degree of the key to increase the replication difficulty.
[0039] Further, the first unlocking tooth 211 includes a number of concave and convex tooth units of different sizes, and the second unlocking tooth 221 also includes a number of concave and convex tooth units of different sizes. The shapes and tooth profiles of the concave and convex tooth units of the first unlocking tooth 211 are different from those of the second unlocking tooth 221, that is, some concave and convex tooth units are large and some are small, with different sizes, which can also increase the difficulty of key duplication.
[0040] Furthermore, alveolar grooves 23 are provided on both sides of the opening part 2, and the alveolar grooves 23 include at least one.
[0041] Specifically, as Figure 1 shown, one side of the opening part 2 has an alveolar groove 23, and this alveolar groove 23 is close to the concave and convex tooth units; and as Figure 3 shown, the opposite side of the opening part 2 includes two alveolar grooves 23, one of the alveolar grooves 23 is wider and the other is narrower, and the narrower alveolar groove 23 is close to the concave and convex tooth units.
[0042] The existence of the alveolar grooves 23 is also to increase the difficulty of key duplication.
[0043] The present utility model also provides a lock, which includes a key of a preferred embodiment of the present utility model, and further includes a lock body. A lock core 4 is provided in the lock body, and a lock hole 41 adapted to the key is provided at one end of the lock core 4.
[0044] As Figures 5 - 9 shown, a number of ball holes 42 are provided on the side wall of the lock core 4 of the present utility model. The ball holes 42 communicate with the lock hole 41, and the ball holes 42 correspond to two rows of unlocking teeth. The ball holes 42 are used to accommodate movable balls, and thus the actions of unlocking and locking are completed.
[0045] In the description of the present utility model, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0046] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0047] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.
Claims
1. A key, comprising a handle portion and an opening portion extending outward from the handle portion, characterized in that, The opening part is a sheet-like structure with a preset thickness. A strip-shaped hole extending along the length direction is provided on the thickness wall of the opening part. Unlocking teeth are provided on both sides of the strip-shaped hole. The unlocking teeth are asymmetrically arranged, and the length of the strip-shaped hole is greater than the length of the unlocking teeth.
2. The key according to claim 1, characterized in that, Both ends of the strip-shaped hole extend to the outside of the unlocking teeth.
3. The key according to claim 1, characterized in that, Inclined slopes are provided on the inner walls of both ends of the strip-shaped hole.
4. The key according to claim 1, characterized in that, The two sides of the strip-shaped hole are respectively a first wall and a second wall. A first unlocking tooth is correspondingly provided on the first wall, and a second unlocking tooth is correspondingly provided on the second wall. The first unlocking tooth and the second unlocking tooth are asymmetrically arranged.
5. The key according to claim 4, characterized in that, The length of the first unlocking tooth is less than the length of the first wall, and the length of the second unlocking tooth is less than the length of the second wall.
6. The key according to claim 4, wherein The first unlocking tooth includes several uneven tooth units of different sizes, and the second unlocking tooth also includes several uneven tooth units of different sizes.
7. The key according to claim 1, characterized in that, Tooth grooves are provided on both sides of the opening part, and the tooth grooves include at least one.
8. The key according to claim 7, characterized in that, The tooth grooves on both sides of the opening part are asymmetrically arranged.
9. A lock, characterized in that, The key includes any one of claims 1-8, and further includes a lock body. A lock core is provided in the lock body, and a lock hole adapted to the key is provided at one end of the lock core.
10. The lock according to claim 9, characterized in that, A pin hole communicating with the lock hole is provided on the side wall of the lock core, and the position of the pin hole corresponds to that of the unlocking tooth.