Key and intelligent lock

Abstract

The utility model relates to the technical field of locks, and discloses a key and an intelligent lockset, the key comprises a key body and an extension assembly which are connected with each other, and the extension assembly comprises a bending section and a connecting piece. The number of the bent sections is at least two, a connecting piece is arranged between every two adjacent bent sections, and the two ends of each connecting piece are rotationally connected with the adjacent bent sections respectively. When the key is used for unlocking, the extending assembly is bent by rotating the bent section and the connecting piece, and the key body is inserted into the guide hole of the key hole after being aligned with the key hole. And then the extension assembly is continuously bent, so that the extension assembly is gradually inserted into the guide hole of the key hole, and the key body gradually penetrates through the guide hole and then is inserted into the key body hole of the key hole. The extension assembly of the key can be gradually inserted into the key hole in a continuous bending mode. In this way, the length of the guide hole can be set at will according to requirements and is not limited, so that a longer guide hole can be formed, and the anti-theft performance is better.

Description

Technical Field

[0001] This application relates to the field of lock technology, specifically to keys and smart locks. Background Technology

[0002] For aesthetic purposes and a certain level of security, the mechanical keyhole is often positioned between the handle and the outer panel of the lock. The handle is positioned in the direction from which the mechanical key is removed from the keyhole, thus obscuring it. To further enhance security, the keyhole includes a transition hole and a key body hole arranged sequentially. The mechanical key needs to be long enough to pass through the transition hole and then be inserted into the key body hole.

[0003] However, the space between the handle and the outer panel of the lock is limited. The length of the mechanical key must be less than the distance between the handle and the outer panel of the lock in order to fit between them and insert into the keyhole. This limits the length of the mechanical key to a certain range, which in turn limits the length of the keyhole's transition hole, resulting in generally limited anti-theft performance.

[0004] Therefore, how to solve or improve the problem of the limited length of the mechanical key in smart locks in related technologies, while still being able to be inserted into the keyhole, has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, this application provides a key and a smart lock to solve or improve the problem that the length of a mechanical key in a smart lock is limited while still being able to be inserted into the keyhole.

[0006] In a first aspect, this application provides a key, including a key body and an extension component connected to each other, the extension component comprising:

[0007] There should be at least two bends.

[0008] A connector is provided between every two adjacent bending segments, and the two ends of the connector are rotatably connected to the adjacent bending segments respectively.

[0009] Optionally, the extension assembly further includes a pivot, and the bent section includes:

[0010] The first plate has a first rotating hole at both ends, and the connector has a second rotating hole at both ends. The rotating shaft passes through the first rotating hole and the second rotating hole in sequence.

[0011] Optionally, the bent segment further includes:

[0012] The second plate has a third rotating hole at both ends. The rotating shaft passes through the first rotating hole, the second rotating hole and the third rotating hole in sequence. The part of the connecting member is located between the first plate and the second plate.

[0013] Optionally, the bent segment further includes:

[0014] A connecting plate is connected to the first plate and the second plate respectively. The connecting plate, the first plate and the second plate form a receiving groove, and part of the connecting member is located in the receiving groove.

[0015] Optionally, the first plate is formed by bending the first side of the connecting plate, and the second plate is formed by bending the second side of the connecting plate.

[0016] Optionally, each of the two adjacent first plates has a first straight surface and a first arc surface at one end that is close to each other. The two first straight surfaces abut against each other, and the two first arc surfaces are respectively coaxially arranged with the first rotating hole.

[0017] Optionally, each of the two adjacent second plates is provided with a second straight surface and a second arc surface at one end that is close to each other. The two second straight surfaces abut against each other, and the two second arc surfaces are respectively coaxially arranged with the third rotating hole.

[0018] Optionally, at least three bending sections are provided, and a third arc surface is provided on the side of each of two adjacent connectors that are close to each other. The third arc surface is coaxially arranged with the second rotating hole.

[0019] Optionally, it also includes:

[0020] A grip, wherein the grip and the key body are respectively connected to both ends of the extension assembly.

[0021] Secondly, this application also provides a smart lock, including a smart lock and a mechanical key, wherein the mechanical key is configured as any of the keys described above.

[0022] This application provides a key comprising an extension component and a key body, the key body being connected to one end of the extension component. The extension component includes bent sections and connectors. Each connector is disposed between every two adjacent bent sections. Every two adjacent bent sections are connected together by a connector, such that the bent sections are connected end-to-end to form the entire extension component. The bent sections and connectors are rotatably connected, allowing the entire extension component to rotate and bend at any connection point between the bent section and the connector. Connecting the bent section at either the beginning or end of the extension component to the key body forms the complete key.

[0023] When unlocking with a key, bend the extension component so that the key body can enter the smart lock between the handle and the outer panel, parallel to the keyhole. Align the key body with the keyhole and insert it into the guide hole. Then, continuously bend the extension component, gradually inserting it into the guide hole, allowing the key body to pass through the guide hole and into the key body hole. At this point, holding an object outside the keyhole with the extension component will apply force to rotate the key body and unlock the lock.

[0024] Because the key's extension component can be gradually inserted into the keyhole through continuous bending, its length can be arbitrarily set, unrestricted by the distance between the handle and the outer panel. This allows the guide hole length to also be arbitrarily set as needed, enabling the creation of longer guide holes, increasing the difficulty for lock-stealing tools to pass through, and thus improving theft prevention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a key according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the bent section structure of an extension component of a key according to an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the connector structure of an extension component of a key according to an embodiment of this application;

[0029] Figure 4 This is a schematic diagram showing the connection between two adjacent bent segments of an extension component of a key according to an embodiment of this application;

[0030] Figure 5 This is a schematic diagram showing the connection between two adjacent connectors of an extension component of a key according to an embodiment of this application;

[0031] Figure 6 This is a schematic diagram of the key body structure of a key according to an embodiment of this application;

[0032] Figure 7 This is a schematic diagram of a key gripping component according to an embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Key body; 11. Fourth pivot hole; 2. Extension component; 21. Bending section; 211. First plate; 2111. First pivot hole; 2112. First straight surface; 2113. First arc surface; 212. Second plate; 2121. Third pivot hole; 2122. Second straight surface; 2123. Second arc surface; 213. Connecting plate; 22. Connector; 221. Second pivot hole; 222. Third arc surface; 23. Rotating shaft; 3. Grip; 31. Fifth pivot hole; 32. Hanging hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] The following is combined with Figures 1 to 7 This describes an embodiment of the present application.

[0037] According to embodiments of this application, in one aspect, a key is provided, such as Figure 1 As shown, it includes an extension component 2 and a key body 1. The key body 1 is connected to one end of the extension component 2. After the key body 1 is inserted into the lock hole, the key body 1 can be driven to unlock by holding the extension component 2 and applying force.

[0038] The extension component 2 includes a bent section 21 and a connector 22. There are at least two bent sections 21, and there is one less connector 22 than the number of bent sections 21. Each connector 22 is disposed between every two adjacent bent sections 21.

[0039] Taking two adjacent bends 21 as an example, such as Figure 4 As shown, one end of the first bent segment 21 is rotatably connected to the first end of the connector 22, so that the first bent segment 21 can rotate around the first end of the connector 22. One end of the second bent segment 21 is rotatably connected to the first end of the connector 22, so that the second bent segment 21 can rotate around the second end of the connector 22. At this time, the two adjacent bent segments 21 are connected together by the connector 22.

[0040] Each pair of adjacent bent segments 21 is connected together by a connector 22, so that the bent segments 21 are connected end to end to form the entire extension assembly 2. The entire extension assembly 2 can be bent by rotation at any connection point between the bent segment 21 and the connector 22. The entire key is formed by connecting the bent segment 21 at the beginning or end of the extension assembly 2 to the key body 1.

[0041] When unlocking with a key, the extension component 2 is bent so that the key body 1 can be inserted between the handle and the outer panel of the smart lock in a parallel position to the keyhole. After aligning the key body 1 with the keyhole, it is inserted into the guide hole of the keyhole. Then, the extension component 2 is bent so that a part of the extension component 2 is aligned parallel to the keyhole and inserted into the guide hole of the keyhole.

[0042] By continuously bending the extension component 2, it gradually inserts into the guide hole of the keyhole. During this process, the key body 1 gradually passes through the guide hole and is inserted into the key body 1 hole of the keyhole. At this point, by holding something outside the keyhole that is part of the extension component 2, force can be applied to drive the key body 1 to rotate and unlock the lock.

[0043] Because the key extension component 2 can be gradually inserted into the keyhole through continuous bending, its length can be arbitrarily set, without being limited by the distance between the handle and the outer panel. This allows the length of the guide hole to also be arbitrarily set as needed, enabling the creation of longer guide holes, increasing the difficulty for lock-stealing tools to pass through, and thus improving theft prevention.

[0044] The key body 1 can be rotatably connected to the end of the bent section 21 away from the connector 22. Since the extension component 2 can be bent, as long as the distance between the handle and the outer panel is greater than the length of the key body 1, the key body 1 can be inserted between the handle and the outer panel of the smart lock in a parallel position to the keyhole. Therefore, the distance between the handle and the outer panel can be set smaller, reducing space occupation while also improving anti-theft performance.

[0045] As an optional implementation method, such as Figure 2 and Figure 4 As shown, the extension component 2 also includes a rotating shaft 23, and the bending section 21 includes a first plate 211. The first plate 211 has two first rotating holes 2111 along its thickness direction, located at both ends of the first plate 211. The connector 22 is plate-shaped, and has two second rotating holes 221 along its thickness direction, located at both ends of the connector 22.

[0046] Taking two adjacent bends 21 as an example, such as Figure 4As shown, the first plate 211 of the first bent segment 21 overlaps with the connector 22 in the thickness direction, such that the second rotating hole 221 at the first end of the connector 22 is coaxially aligned with the first rotating hole 2111 on the first plate 211 of the first bent segment 21. At this time, the rotating shaft 23 is set to pass through the first rotating hole 2111 and the second rotating hole 221 in sequence, so that the first plate 211 of the first bent segment 21 and the connector 22 can both rotate around the rotating shaft 23, thereby the first plate 211 of the first bent segment 21 and the first end of the connector 22 can be rotatably connected.

[0047] The first plate 211 of the second bent segment 21 overlaps with the connector 22 in the thickness direction, such that the second rotating hole 221 at the second end of the connector 22 is coaxially aligned with the first rotating hole 2111 on the first plate 211 of the second bent segment 21. At this time, the rotating shaft 23 is set to pass through the first rotating hole 2111 and the second rotating hole 221 in sequence, so that the first plate 211 of the second bent segment 21 and the connector 22 can both rotate around the rotating shaft 23, thereby the first plate 211 of the second bent segment 21 and the second end of the connector 22 can be rotatably connected.

[0048] In this way, the first plate 211 of the two bent sections 21 is connected by the connector 22, and the first plate 211 of the two bent sections 21 can rotate around the two ends of the connector 22 respectively.

[0049] Similarly, each pair of adjacent bending segments 21 can be connected with a connector 22 to form the entire extension assembly 2. With this configuration, both the first plate 211 and the connector 22 are simple plates that only require simple openings, making the manufacturing process relatively simple.

[0050] In a further embodiment, such as Figure 2 As shown, the bent section 21 also includes a second plate 212. The second plate 212 has two third rotating holes 2121 along the thickness direction, and the two third rotating holes 2121 are located at both ends of the second plate 212.

[0051] Taking two adjacent bends 21 as an example, such as Figure 2As shown, the second plate 212 of the first bent segment 21 overlaps with the connector 22 in the thickness direction, and the first plate 211 and the second plate 212 of the first bent segment 21 are located on both sides of the connector 22. The second rotating hole 221 at the first end of the connector 22, the third rotating hole 2121 on the second plate 212 of the first bent segment 21, and the first rotating hole 2111 on the first plate 211 of the first bent segment 21 are coaxially aligned. At this time, the rotating shaft 23 is sequentially passed through the first rotating hole 2111, the second rotating hole 221, and the third rotating hole 2121, so that the first plate 211, the second plate 212 of the first bent segment 21, and the connector 22 can all rotate around the rotating shaft 23, thereby allowing the first plate 211 and the second plate 212 of the first bent segment 21 to be rotatably connected to the first end of the connector 22.

[0052] The second plate 212 of the second bent segment 21 overlaps with the connector 22 in the thickness direction, and the first plate 211 and the second plate 212 of the second bent segment 21 are located on both sides of the connector 22. This ensures that the second rotating hole 221 at the second end of the connector 22, the third rotating hole 2121 on the second plate 212 of the second bent segment 21, and the first rotating hole 2111 on the first plate 211 of the second bent segment 21 are coaxially aligned. At this point, the rotating shaft 23 is sequentially passed through the first rotating hole 2111, the second rotating hole 221, and the third rotating hole 2121, allowing the first plate 211, the second plate 212 of the second bent segment 21, and the connector 22 to all rotate around the rotating shaft 23. Thus, the first plate 211 and the second plate 212 of the second bent segment 21 are rotatably connected to the second end of the connector 22.

[0053] In this way, the first plates 211 of the two bent segments 21 are connected by the connector 22, and the first plates 211 of the two bent segments 21 can rotate around the two ends of the connector 22 respectively. At the same time, the second plates 212 of the two bent segments 21 are connected by the connector 22, and the second plates 212 of the two bent segments 21 can rotate around the two ends of the connector 22 respectively.

[0054] With this configuration, for each bending segment 21, the first plate 211 and the second plate 212 are located on both sides of the connector 22, making the whole structure more stable.

[0055] In a further embodiment, the bent section 21 also includes a connecting plate 213. For example... Figure 2 As shown, a connecting plate 213 is disposed between the first plate 211 and the second plate 212. The first side of the connecting plate 213 is connected to the first plate 211, and the second side of the connecting plate 213 is connected to the second plate 212. At this time, the first plate 211, the second plate 212, and the connecting plate 213 form a receiving groove.

[0056] For two adjacent connectors 22, such as 3 and Figure 5 As shown, part of the first connector 22 extends into the receiving groove, so that the second rotating hole 221 on the first connector 22 is coaxially aligned with the first rotating hole 2111 at the first end of the first plate 211 of the bent section 21 and the third rotating hole 2121 at the first end of the second plate 212. After the rotating shaft 23 passes through the first rotating hole 2111, the second rotating hole 221 and the third rotating hole 2121 in sequence, the first connector 22 and the first end of the bent section 21 are rotatably connected.

[0057] Part of the second connector 22 extends into the receiving groove, so that the second rotating hole 221 on the second connector 22 is coaxially aligned with the first rotating hole 2111 at the second end of the first plate 211 of the bent section 21 and the third rotating hole 2121 at the second end of the second plate 212. After the rotating shaft 23 passes through the first rotating hole 2111, the second rotating hole 221 and the third rotating hole 2121 in sequence, the second connector 22 is rotatably connected to the second end of the bent section 21.

[0058] With this configuration, under the limiting effect of the connecting plate 213, the moving part can only rotate to the side away from the connecting plate 213 when rotating, so that the extension component 2 can only bend in one direction, making the operation simpler and avoiding the extension component 2 from being bent arbitrarily and affecting the operation.

[0059] For each bending segment 21, the connecting plate 213 can be bent into sheet metal to form a first plate 211 on the first side, and the plate 212 can be bent into a second plate 212 on the second side, which reduces the manufacturing cost.

[0060] As an optional embodiment, such as Figure 2 and Figure 4 As shown, for two adjacent bending segments 21, the first end of the first plate 211 of the first bending segment 21 is positioned close to the second end of the first plate 211 of the second bending segment 21. The first end of the first plate 211 of the first bending segment 21 is provided with a first straight surface 2112 and a first arc surface 2113, wherein the first straight surface 2112 and the first arc surface 2113 are arranged sequentially, and the first arc surface 2113 at the first end of the first plate 211 of the first bending segment 21 is coaxially arranged with the first rotating hole 2111 at the first end of the first bending segment 21.

[0061] The second end of the first plate 211 of the second bending segment 21 is provided with a first straight surface 2112 and a first arc surface 2113, wherein the first straight surface 2112 and the second arc surface 2123 are arranged sequentially, and the first arc surface 2113 at the second end of the first plate 211 of the second bending segment 21 is coaxially arranged with the first rotating hole 2111 at the second end of the first plate 211 of the second bending segment 21.

[0062] The first arc surface 2113 is a quarter-circle arc.

[0063] The two first straight surfaces 2112 abut against each other, preventing the first plates 211 of the two adjacent bent segments 21 from rotating relative to each other in the direction of the first straight surfaces 2112. The presence of the two first arc surfaces 2113 allows the first plates 211 of the two adjacent bent segments 21 to rotate relative to each other in the direction of the first arc surfaces 2113. This ensures that the extension component 2 can only bend in one direction, simplifying operation and preventing arbitrary bending of the extension component 2 from affecting operation.

[0064] That is, for each bending segment 21, the first plate 211 has a first straight surface 2112 and a first arc surface 2113 at both ends.

[0065] As an optional embodiment, such as Figure 2 and Figure 4 As shown, for two adjacent bending segments 21, the first end of the second plate 212 of the first bending segment 21 is positioned close to the second end of the second plate 212 of the second bending segment 21. The first end of the second plate 212 of the first bending segment 21 is provided with a second straight surface 2122 and a second arc surface 2123, wherein the second straight surface 2122 and the second arc surface 2123 are arranged sequentially, and the second arc surface 2123 at the first end of the second plate 212 of the first bending segment 21 is coaxially positioned with the third rotating hole 2121 at the first end of the first bending segment 21.

[0066] The second plate 212 of the second bending segment 21 is provided with a second straight surface 2122 and a second arc surface 2123 at the second end, wherein the second straight surface 2122 and the second arc surface 2123 are arranged sequentially, and the second arc surface 2123 at the second end of the second plate 212 of the second bending segment 21 is coaxially arranged with the third rotating hole 2121 at the second end of the second plate 212 of the second bending segment 21.

[0067] The second arc surface 2123 is a quarter-circle arc.

[0068] The two second straight surfaces 2122 abut against each other, preventing the second plates 212 of adjacent bent segments 21 from rotating relative to each other in the direction of the second straight surfaces 2122. The presence of the two second arc surfaces 2123 allows the second plates 212 of adjacent bent segments 21 to rotate relative to each other in the direction of the second arc surfaces 2123. This ensures that the extension component 2 can only bend in one direction, simplifying operation and preventing arbitrary bending of the extension component 2 from affecting operation.

[0069] That is, for each bent segment 21, the second plate 212 is provided with a second straight surface 2122 and a second arc surface 2123 at both ends.

[0070] As an optional embodiment, such as Figure 1 As shown, at least three bending segments 21 are provided, and since a connector 22 is provided between every two adjacent bending segments 21, at least two connectors 22 are provided.

[0071] For two adjacent connectors 22, such as Figure 3 and Figure 5 As shown, the first connector 22 has a third arc surface 222 on the side near the second connector 22, and the second connector 22 has a third arc surface 222 on the end near the first connector 22.

[0072] The third arc surface 222 can be a semi-circular arc.

[0073] This configuration ensures that even if the first connector 22 and the second connector 22 are close to each other on one side, they can still rotate relative to each other, which can further reduce the space occupied.

[0074] That is, for each connector 22, a third arc surface 222 is provided at both ends.

[0075] As an optional embodiment, such as Figure 1 As shown, the key also includes a grip 3, which is connected to the end of the extension assembly 2 away from the key body 1. This ensures that the grip 3 and the key body 1 are located at opposite ends of the extension assembly 2.

[0076] By continuously bending the extension component 2, it is gradually inserted into the guide hole of the keyhole. The key body 1 then gradually passes through the guide hole and is inserted into the key body 1 hole of the keyhole. At this time, the user can hold the grip and apply force to rotate it. The rotational force is transmitted to the key body 1 through the extension component 2, thereby rotating the key body 1 to unlock the door, making the operation more convenient.

[0077] like Figure 7 As shown, the grip 3 can be block-shaped, and a hanging hole 32 can be provided through the grip 3. The key can be hung on a key ring, hook or other position through the hanging hole 32 for easy carrying and storage.

[0078] Regarding the connection between the key body 1 and the extension component 2, the bent section 21 at the beginning of the key body 1 and the extension component 2 are rotatably connected. For example... Figure 6 As shown, a fourth pivot hole 11 is provided on the key body 1. A portion of the key body 1 is inserted between the first plate 211 and the second plate 212 of the bent section 21, so that the fourth pivot hole 11, the first pivot hole 2111 and the third pivot hole 2121 are coaxial. The pivot 23 is passed through the first pivot hole 2111, the fourth pivot hole 11 and the third pivot hole 2121 in sequence, so that the key body 1 and the bent section 21 can be rotatably connected.

[0079] Regarding the connection between the gripper 3 and the extension assembly 2, the gripper 3 and the bent section 21 at the tail end of the extension assembly 2 are rotatably connected. For example... Figure 7 As shown, a fifth rotating hole 31 is provided on the gripper 3. A part of the gripper 3 is inserted between the first plate 211 and the second plate 212 of the bent section 21, so that the fifth rotating hole 31, the first rotating hole 2111 and the third rotating hole 2121 are coaxial. The rotating shaft 23 is passed through the first rotating hole 2111, the fifth rotating hole 31 and the third rotating hole 2121 in sequence, so that the gripper 3 and the bent section 21 can be rotatably connected.

[0080] According to an embodiment of this application, another aspect provides a smart lock, including a smart lock and a mechanical key, wherein the mechanical key is set to any of the keys described above. The effect of this smart lock is the same as that of a key, and therefore will not be described further.

[0081] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A key, characterized in that, It includes a key body (1) and an extension assembly (2) that are interconnected, the extension assembly (2) comprising: The bending segment (21) should have at least two bends. A connector (22) is provided between every two adjacent bent segments (21), and the two ends of the connector (22) are rotatably connected to the adjacent bent segments (21).

2. The key according to claim 1, characterized in that, The extension component (2) further includes a pivot (23), and the bent section (21) includes: The first plate (211) has a first rotating hole (2111) at both ends, and the connector (22) has a second rotating hole (221) at both ends. The rotating shaft (23) passes through the first rotating hole (2111) and the second rotating hole (221) in sequence.

3. The key according to claim 2, characterized in that, The bent segment (21) also includes: The second plate (212) has a third rotating hole (2121) at both ends. The rotating shaft (23) passes through the first rotating hole (2111), the second rotating hole (221) and the third rotating hole (2121) in sequence. The part of the connector (22) is located between the first plate (211) and the second plate (212).

4. The key according to claim 3, characterized in that, The bent segment (21) also includes: A connecting plate (213) is connected to the first plate (211) and the second plate (212) respectively. The connecting plate (213), the first plate (211) and the second plate (212) form a receiving groove, and part of the connector (22) is located in the receiving groove.

5. The key according to claim 4, characterized in that, The first plate (211) is formed by bending the first side of the connecting plate (213), and the second plate (212) is formed by bending the second side of the connecting plate (213).

6. The key according to claim 2, characterized in that, Each of the two adjacent first plates (211) is provided with a first straight surface (2112) and a first arc surface (2113) at one end that is close to each other. The two first straight surfaces (2112) abut against each other, and the two first arc surfaces (2113) are respectively coaxially arranged with the first rotating hole (2111).

7. The key according to claim 3, characterized in that, Each of the two adjacent second plates (212) is provided with a second straight surface (2122) and a second arc surface (2123) at one end that is close to each other. The two second straight surfaces (2122) abut against each other, and the two second arc surfaces (2123) are respectively coaxially arranged with the third rotating hole (2121).

8. The key according to claim 2, characterized in that, At least three bending sections (21) are provided, and a third arc surface (222) is provided on the side of each of the two adjacent connectors (22) that are close to each other. The third arc surface (222) is coaxially arranged with the second rotating hole (221).

9. The key according to claim 1, characterized in that, Also includes: The grip (3) and the key body (1) are respectively connected to the two ends of the extension assembly (2).

10. A smart lock, characterized in that, It includes a smart lock and a mechanical key, wherein the mechanical key is configured as the key described in any one of claims 1-9.

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