A door lock

Abstract

The application relates to a door lock which comprises an outer handle seat provided with an outer mounting cavity, a latch top and a latch top driving element arranged in the outer mounting cavity, the latch top being slidingly arranged in the outer mounting cavity and connected with the latch top driving element; an outer handle which is rotationally arranged on the outer handle seat and is provided with a latch accommodating groove and a lock bone accommodating groove in communication, the latch accommodating groove being used for slidingly arranging the latch top, and the latch being slidingly arranged in the latch accommodating groove; a rotating body which is rotationally connected with the key in the lock bone accommodating groove and is drivingly connected with the latch for moving the latch top out of the latch accommodating groove; and an electric unlocking element which is arranged on the outer handle seat and is connected with the latch top driving element for moving the latch top out of the latch accommodating groove by the latch top driving element. The application has the effect of enriching the outdoor unlocking mode of the door lock.

Description

Technical Field

[0001] This application relates to the field of locks, and more particularly to a door lock. Background Technology

[0002] Door locks, as the name suggests, are devices used to lock doors to prevent others from opening them. They are mostly used in homes and public places, and can be divided into room door locks, car door locks, valve locks, cabinet door locks, etc., depending on the application environment.

[0003] In related technologies, a door lock includes an outer handle base, an inner handle base, and a bolt. Specifically, the outer handle base is fixedly installed on the exterior surface of the door, and a rotatable outer handle is connected to the outer handle base. The outer handle also has a key slot for inserting a key, and the outer handle can only be rotated after the key is inserted into the key slot. The inner handle base is fixedly installed on the interior surface of the door, and a rotatable inner handle is connected to the inner handle base. A square core is connected between the inner and outer handles to achieve synchronous rotation. The bolt is installed on the door and is located between the outer and inner handle bases. The bolt is also connected to the square core so that the square core can extend or retract the bolt's tongue, thereby enabling the door to be opened from the outside with a key and from the inside by turning the inner handle.

[0004] Regarding the aforementioned technologies, there is a drawback that this type of door lock can only be opened from the outside using a key, resulting in a relatively limited method of unlocking the door from the outside. Utility Model Content

[0005] To enrich the outdoor unlocking methods of door locks, this application provides a door lock.

[0006] The door lock provided in this application adopts the following technical solution: A door lock includes an outer handle base, the outer handle base having an outer mounting cavity, a bolt top and a bolt top drive member being disposed within the outer mounting cavity, the bolt top being slidably disposed within the outer mounting cavity, and the bolt top being connected to the bolt top drive member; An outer handle is rotatably mounted on the outer handle seat. The outer handle is provided with a connecting bolt receiving groove and a clavicle receiving groove. The bolt receiving groove allows the top of the bolt to slide through, and the bolt is slidably disposed in the bolt receiving groove. A rotating body for connecting with a key is damped and rotatably connected in the clavicle receiving groove. The rotating body is drivenly connected to the bolt and is used to move the top of the bolt out of the bolt receiving groove. An electric unlocking component is disposed on the outer handle seat. The electric unlocking component is connected to the bolt top drive component and is used to allow the bolt top drive component to move the bolt top out of the bolt receiving groove.

[0007] By adopting the above technical solutions, when unlocking from the outside, firstly, the key is inserted into the rotating body, and then the rotating body is rotated to move the bolt top out of the bolt receiving groove. Then, the rotating body is rotated again. During this process, because the rotating body and the outer handle are connected by damping rotation, the entire outer handle can be rotated, thus achieving the purpose of unlocking. Secondly, the electric unlocking device is used to activate the bolt top drive device, which moves the bolt top out of the bolt receiving groove. After the bolt top is out of the bolt receiving groove, the entire outer handle is rotated directly, thus also achieving the purpose of unlocking. Therefore, compared to the method of unlocking from the outside using only a key, this design allows the electric unlocking device to be a password unlocking device. So, even if the key is forgotten, the door can still be unlocked from the outside using the electric unlocking device, thus enriching the outdoor unlocking methods of the door lock.

[0008] Preferably, the bolt top driving component includes a drive motor, a connecting spring, and a transmission block. The drive motor is disposed in the outer mounting cavity; the connecting spring is sleeved on the output shaft of the drive motor and is fixedly connected to the bolt top; the transmission block is connected to the output shaft of the drive motor and passes through the pitch of the connecting spring.

[0009] By adopting the above technical solution, when the drive motor is working, the output shaft of the drive motor will rotate. During this process, the transmission block will move relative to the connecting spring along the pitch direction of the connecting spring. The transmission block will then gradually move closer to one end of the connecting spring along its length. Therefore, the top of the locking bolt can move closer to or further away from the position of the drive motor, thereby achieving the purpose of sliding the top of the locking bolt into and out of the locking bolt receiving groove. In addition, with this design, during the process of the locking bolt moving the top of the locking bolt out of the locking bolt receiving groove, the part of the connecting spring located on the transmission block away from the drive motor housing can be compressed, thus also achieving an elastic connection between the top of the locking bolt and the output shaft of the drive motor.

[0010] Preferably, a drive block is eccentrically connected to one end of the rotating body near the bolt; the bolt is provided with a drive groove for the drive block to be inserted, the drive groove having an unlocking part and a locking part that abut against the drive block, when the drive block abuts against the unlocking part, the bolt causes the top of the bolt to move out of the bolt receiving groove, and when the drive block abuts against the locking part, the top of the bolt can move into the bolt receiving groove.

[0011] By adopting the above technical solution, since the drive block is eccentrically mounted on the rotating body, during the rotation of the rotating body, if the drive block abuts against the unlocking part, the top of the bolt will be pushed out of the bolt receiving groove by the bolt, so that the rotation of the outer handle unlocks. If the drive block abuts against the locking part, the bolt will gradually move away from the connection between the bolt receiving groove and the mounting cavity. At the same time, the top of the bolt will be reset and moved into the bolt receiving groove through the spring connection between the bolt top drive component, so that the rotation of the outer handle is locked, thereby realizing the purpose of unlocking the key from the outside. In addition, in this design, the cooperation between the drive block and the drive groove is similar to a cam mechanism, but a spring is not required between the drive block and the bolt to maintain the abutment between the drive block and the inner wall of the drive groove, thereby simplifying the structure between the rotating body and the bolt and further reducing the size of the outer handle.

[0012] Preferably, a rotation reset member is provided between the outer handle and the outer handle seat, the rotation reset member being used to reset the outer handle to the starting position after the outer handle is rotated by a predetermined angle.

[0013] By adopting the above technical solution, after people turn the outer handle to open the door lock, they can release the outer handle. Then, the outer handle will perform a reset movement under the action of the rotating reset component until the bolt receiving groove and the mounting cavity are reconnected. Then, the bolt can be retracted by rotating the rotating body so that the top of the bolt can be reset and moved into the bolt receiving groove, or the top of the bolt can be moved into the bolt receiving groove directly by the bolt top driving component, so that the door lock can be restored to the locked state more conveniently.

[0014] Preferably, it further includes an inner handle base, an inner handle, a connecting core, and an anti-theft device. The inner handle is rotatably mounted on the inner handle base. The connecting core is connected to both the inner handle and the outer handle. The anti-theft device is disposed on the inner handle base and is used to restrict the rotation of the inner handle.

[0015] By adopting the above technical solution, on the one hand, due to the setting of the inner handle seat, inner handle and connecting core, the inner handle can be rotated from inside the room to open the door lock. On the other hand, the rotation of the inner handle can be restricted by the anti-theft component. At the same time, since the inner handle and the outer handle are fixedly connected by the connecting core, the outer handle cannot be rotated either, thus achieving the purpose of locking the door from the inside and preventing it from being opened from the outside.

[0016] Preferably, the inner handle seat has an inner mounting cavity; the inner handle includes a grip portion and a connecting portion, the grip portion being located outside the inner mounting cavity; one end of the connecting portion is connected to the grip portion, and the other end is connected to the connecting core, the connecting portion being prismatic in shape; the anti-theft component includes an anti-rotation plate and an anti-rotation plate drive component, the anti-rotation plate being slidably disposed in the inner mounting cavity, the anti-rotation plate having an anti-rotation notch adapted to the connecting portion; the anti-rotation plate drive component being connected to the anti-rotation plate.

[0017] By adopting the above technical solution, when the anti-theft device is to be used, the anti-rotation plate driver first moves the anti-rotation plate closer to the connecting part of the inner handle. When the connecting part is inserted into the anti-rotation notch of the anti-rotation plate, the connecting part cannot rotate, thereby achieving the purpose of restricting the rotation of the inner handle. When the anti-theft device is to be closed, the anti-rotation plate driver can also move the anti-rotation plate away from the connecting part of the inner handle. After the connecting part moves out of the anti-rotation notch of the anti-rotation plate, the connecting part can rotate, thereby achieving the purpose of releasing the rotation of the inner handle.

[0018] Preferably, the anti-rotation plate drive includes a rotating handle, a drive cam, an abutment block, and an abutment elastic member. One end of the rotating handle is located outside the inner mounting cavity, and the other end rotates into the inner mounting cavity. The drive cam is connected to the end of the rotating handle located in the inner mounting cavity. The abutment block is connected to the anti-rotation plate and abuts against the peripheral surface of the drive cam. The abutment elastic member is connected to the anti-rotation plate and is used to keep the abutment block abutting against the drive cam.

[0019] By adopting the above technical solution, during the rotation of the handle, the abutment block will abut against different positions of the drive cam. When the abutment block moves from the near rest position to the far rest position of the drive cam, the drive cam will use the abutment block to move the anti-rotation plate towards the connecting part of the inner handle, so that the connecting part can be inserted into the anti-rotation notch. When the abutment block moves from the far rest position to the near rest position of the drive cam, the abutment elastic element will keep the abutment block abutting against the drive cam, so that the anti-rotation plate can move away from the connecting part of the inner handle, thereby causing the connecting part to leave the anti-rotation notch. This achieves the purpose of moving the connecting part in and out of the anti-rotation notch. In addition, with this design, the use of the anti-theft device only requires rotating the handle, making the indoor use of the door lock simpler.

[0020] Preferably, the electric unlocking device is one of a password unlocking device, a fingerprint unlocking device, a face recognition unlocking device, and an NFC unlocking device.

[0021] By adopting the above technical solution, the corresponding electric unlocking component can be rotated according to different application scenarios, thereby making the outdoor unlocking method of the door lock more compatible with the actual use environment.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up an external handle base, external handle, and electric unlocking device, compared to the method of unlocking only with a key from the outside, this design allows the electric unlocking device to be a password unlocking device. Therefore, even if you forget your key, you can still unlock the door from the outside using the electric unlocking device, thus making the outdoor unlocking methods of the door lock more diverse. 2. By using an eccentrically connected drive block on the rotating body and a drive groove on the bolt, the engagement between the drive block and the drive groove is similar to a cam mechanism. However, a spring is not required between the drive block and the bolt to maintain contact between the drive block and the inner wall of the drive groove. This simplifies the structure between the rotating body and the bolt and further reduces the size of the outer handle. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the door lock structure in an embodiment of this application.

[0024] Figure 2 This is a cross-sectional view of the outer handle seat in an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the structure of the bolt top drive component in the embodiments of this application.

[0026] Figure 4 This is a schematic diagram illustrating how the rotating body and the locking bolt are connected and transmitted in an embodiment of this application.

[0027] Figure 5 This is a cross-sectional view of the inner handle seat in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Outer handle seat; 11. Outer mounting cavity; 12. Outer mounting hole; 13. Receiving groove; 14. Rotation reset component; 2. Outer handle; 21. Bolt receiving groove; 22. Clavicle receiving groove; 23. Bolt; 24. Rotating body; 25. Drive block; 26. Drive groove; 261. Unlocking part; 262. Locking part; 3. Electric unlocking component; 4. Bolt top; 41. Connecting bracket; 42. Pin; 5. 51. Lock bolt top drive component; 52. Drive motor; 53. Connecting spring; 54. Transmission block; 6. Inner handle seat; 61. Inner mounting cavity; 7. Inner handle; 71. Grip part; 72. Connecting part; 8. Connecting square core; 9. Anti-theft component; 91. Anti-rotation plate; 911. Anti-rotation notch; 92. Anti-rotation plate drive component; 921. Rotating handle; 922. Drive cam; 923. Abutment block; 924. Abutment elastic component. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This application discloses a door lock. (Refer to...) Figure 1 and Figure 2 The door lock includes an outer handle base 1, an outer handle 2, and an electric unlocking component 3. Specifically, the outer handle base 1 is generally rectangular in shape and is fixedly installed on the exterior side of the door. The outer handle base 1 also has an outer mounting cavity 11 and an outer mounting hole 12. The outer mounting cavity 11 contains a bolt top 4 and a bolt top drive component 5. The bolt top 4 is slidably disposed in the outer mounting cavity 11 and can slide into the outer mounting hole 12. The bolt top drive component 5 is disposed in the outer mounting cavity 11 and its output end is elastically connected to the bolt top 4.

[0031] Reference Figure 1 and Figure 2 The outer handle 2 is rotatably inserted into the outer mounting hole 12, and the outer handle 2 has a bolt receiving groove 21 and a clavicle receiving groove 22 that are interconnected. The opening of the bolt receiving groove 21 is located on the peripheral surface of the outer handle 2, and the bottom of the bolt receiving groove 21 extends to the axis of the outer handle 2. In addition, the bolt receiving groove 21 also allows the bolt top 4 to slide in and out. At the same time, a bolt 23 is also slidably arranged in the bolt receiving groove 21 along the center line of its own opening.

[0032] Reference Figure 1 and Figure 2 The clavicle receiving groove 22 is coaxially opened at the axis position of the outer handle 2. The groove opening of the clavicle receiving groove 22 is located on the end face of the outer handle 2 at the outer mounting cavity 11. The bottom of the clavicle receiving groove 22 is connected to the bottom of the bolt receiving groove 21. A rotating body 24 connected to the key is also coaxially rotatably connected inside the clavicle receiving groove 22. The rotating body 24 achieves a damped rotational connection with the outer handle 2 by means of a sealing ring. Moreover, the end of the rotating body 24 away from the groove opening of the clavicle receiving groove 22 is also connected to the bolt 23 for transmission. So that when the rotating body 24 rotates, it can make the bolt 23 move towards the groove opening of the bolt receiving groove 21. Then, the bolt top 4 can be moved out of the bolt receiving groove 21 through the bolt 23, thereby releasing the rotation restriction of the outer handle 2, and thus achieving the purpose of unlocking the door from the outside with the key.

[0033] Reference Figure 1 and Figure 2The electric unlocking component 3 is installed on the outer handle base 1 and is also connected to the bolt top drive component 5. In this embodiment, the electric unlocking component 3 can be a password unlocking device. Specifically, an operation keypad for people to enter a password can be provided on the outer handle base 1. After the correct password is entered to start the bolt top drive component 5, the bolt top drive component 5 can then move the bolt top 4 out of the bolt receiving groove 21 to release the rotation restriction of the outer handle 2. Then the outer handle 2 can be rotated to open the door lock, thereby making the door lock opening methods more diverse from the outside.

[0034] In other embodiments, the electric unlocking device 3 may also be a fingerprint recognition device, a face recognition device, or an NFC recognition unlocking device.

[0035] Reference Figure 2 and Figure 3 In this embodiment, the bolt top 4 includes a connecting frame 41 and a pin 42. Specifically, the connecting frame 41 is slidably connected in the outer mounting cavity 11, and the sliding direction of the connecting frame 41 is parallel to the sliding direction of the bolt 23. One end of the pin 42 slides in and out of the bolt receiving groove 21, and the other end is fixedly connected to the connecting frame 41 to form a structural foundation in which the bolt top 4 can both pass into the bolt receiving groove 21 and be connected to the bolt top driving member 5.

[0036] Reference Figure 2 and Figure 3 The bolt top drive component 5 includes a drive motor 51, a connecting spring 52, and a transmission block 53. The drive motor 51 is fixedly installed in the outer mounting cavity 11, and the output shaft of the drive motor 51 is also slidably mounted on the connecting frame 41. The connecting spring 52 is slidably sleeved on the output shaft of the drive motor 51, and the connecting spring 52 is also fixedly connected to the connecting frame 41. The transmission block 53 is cylindrical, and two transmission blocks 53 are symmetrically fixedly connected on the output shaft of the drive motor 51. The transmission blocks 53 are also located between the pitches of the connecting springs 52. When the output shaft of the drive motor 51 rotates, the transmission blocks 53 will move relative to the connecting springs 52 along the pitch direction. The transmission blocks 53 will then move closer to one end of the connecting springs 52. Therefore, the bolt top 4 can move closer to or further away from the position of the drive motor 51, thereby achieving the purpose of sliding the bolt top 4 into and out of the bolt receiving groove 21 under the action of the drive motor 51.

[0037] Reference Figure 2 and Figure 4In this embodiment, a drive block 25 is fixedly connected to the end face of the rotating body 24 near the bolt 23. The drive block 25 is cylindrical and is not connected to the axis of the rotating body 24. Furthermore, to cooperate with the drive block 25, the bolt 23 has a drive groove 26 at one end near the bottom of the bolt receiving groove 21. Specifically, the drive groove 26 is coaxially formed into an annular groove around the axis of the bolt 23, and the two opposing inner walls of the drive groove 26 are divided into an unlocking part 261 and a locking part 262 that abut against the drive block 25. The unlocking part 261 is located... When the bolt 23 is positioned near the opening of the bolt receiving groove 21, during the contact between the drive block 25 and the unlocking part 261, the bolt 23 will move towards the opening of the bolt receiving groove 21, causing the bolt top 4 to be squeezed out of the bolt receiving groove 21. During the contact between the drive block 25 and the locking part 262, the bolt 23 will move away from the opening of the bolt receiving groove 21, causing the bolt top 4 to be reset and slide back into the bolt receiving groove 21 under the action of the connecting spring 52. This achieves the purpose of driving the bolt 23 to lock and unlock the outer handle 2.

[0038] Reference Figure 2 During the opening of the door lock, the outer handle 2 rotates to displace the bolt receiving groove 21 from the mounting cavity, thus preventing communication between the bolt receiving groove 21 and the mounting cavity. However, to facilitate the door lock's return to its pre-open state after opening, a special arrangement is provided between the outer handle 2 and the outer handle seat 1 in this embodiment. Specifically, a receiving groove 13 is formed on one side surface of the outer handle 2. The receiving groove 13 is coaxially arranged with the outer mounting hole 12 and extends around the periphery of the outer mounting hole 12. Therefore, the receiving groove 13 extends along the outer mounting hole 12. The cross-section along the axis is an annular groove. A rotary reset member 14 is also installed in the receiving groove 13. The rotary reset member 14 is a torsion spring. One torsion arm of the rotary reset member 14 is fixedly connected to the inner wall of the receiving groove 13, and the other torsion arm is fixedly connected to the outer handle 2. So when people release the outer handle 2, the outer handle 2 can be reset and rotated under the action of the rotary reset member 14, so that the bolt receiving groove 21 and the mounting cavity are restored to communication. Thus, the door lock can be quickly locked simply by letting the bolt top 4 slide into the bolt receiving groove 21.

[0039] Reference Figure 1 and Figure 5The door lock also includes an inner handle base 6, an inner handle 7, a connecting core 8, and an anti-theft component 9. Specifically, the inner handle base 6 is usually fixedly installed on the surface of the door facing the interior, and the inner handle base 6 and the outer handle base 1 are parallel to each other and spaced apart. The inner handle base 6 also has an inner mounting cavity 61. The inner handle 7 includes a grip part 71 and a connecting part 72. The grip part 71 is located outside the inner mounting cavity 61 and on the side of the inner handle base 6 away from the outer handle base 1. One end of the connecting part 72 is fixedly connected to the grip part 71, and the other end rotates into the inner mounting cavity 61. The connecting part 72 is generally in the shape of a quadrangular prism. One end of the connecting core 8 is fixedly connected to the outer handle 2, and the other end is fixedly connected to the connecting part 72 of the inner handle 7. Therefore, the inner handle 7 can be rotated from the inside to open the door lock from the inside.

[0040] Reference Figure 1 and Figure 5 The anti-theft component 9 includes an anti-rotation plate 91 and an anti-rotation plate drive component 92. The anti-rotation plate 91 is slidably disposed in the inner mounting cavity 61, and an anti-rotation notch 911 is integrally formed at one end of the anti-rotation plate 91. The shape of the anti-rotation notch 911 is adapted to the shape of the connecting part 72. After the connecting part 72 moves into the anti-rotation notch 911, the connecting part 72 cannot rotate, thereby locking the door from the inside so that it cannot be opened from the outside, thus enabling the door lock to have an anti-theft function.

[0041] Reference Figure 1 and Figure 5 The anti-rotation plate drive component 92 includes a rotating handle 921, a drive cam 922, an abutment block 923, and an abutment elastic member 924. One end of the rotating handle 921 is located outside the inner mounting cavity 61 and on the side of the inner handle seat 6 away from the outer handle seat 1. The other end of the rotating handle 921 passes into the inner mounting cavity 61 and also passes through the anti-rotation plate 91 with a gap. The drive cam 922 is fixedly connected to the end of the rotating handle 921 located in the inner mounting cavity 61, and the drive cam 922 is located on the side of the anti-rotation plate 91 closer to the outer handle seat 1. The abutment block 923... The body is formed on the anti-rotation plate 91, and the abutment block 923 abuts against the peripheral surface of the drive cam 922; the abutment elastic member 924 is a spring, one end of the abutment elastic member 924 is fixedly connected to the inner wall of the inner mounting cavity 61, and the other end is connected to the anti-rotation plate 91, so that the abutment block 923 always abuts against the drive cam 922. Therefore, when the rotating handle 921 drives the drive cam 922 to rotate, the anti-rotation plate 91 can make reciprocating linear motion, so that the connecting part 72 enters and exits the anti-rotation notch 911, thereby realizing the opening and closing of the anti-theft device 9.

[0042] The implementation principle of a door lock according to an embodiment of this application is as follows: When unlocking from the outside, there are two methods. First, insert the key into the rotating body 24, then rotate the rotating body 24 to move the bolt 23 and the bolt top 4 out of the bolt receiving groove 21. Then continue to rotate the rotating body 24 to make the outer handle 2 rotate as a whole, so that the door can be unlocked from the outside. Second, use the electric unlocking component 3 to start the bolt top driving component 5. The bolt top driving component 5 can move the bolt top 4 out of the bolt receiving groove 21. After the bolt top 4 is moved out of the bolt receiving groove 21, the outer handle 2 can be directly rotated to achieve the purpose of unlocking from the outside. Thus, the door lock can be unlocked from the outside by either the key or the electric unlocking component 3, thereby making the door lock's outdoor unlocking methods more diverse.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A door lock, characterized in that, include: An outer handle seat (1) is provided with an outer mounting cavity (11). A bolt top (4) and a bolt top drive member (5) are provided in the outer mounting cavity (11). The bolt top (4) is slidably disposed in the outer mounting cavity (11). The bolt top (4) is connected to the bolt top drive member (5). An outer handle (2) is rotatably mounted on the outer handle seat (1). The outer handle (2) is provided with a connecting bolt receiving groove (21) and a clavicle receiving groove (22). The bolt receiving groove (21) allows the bolt top (4) to slide through. A bolt (23) is slidably mounted in the bolt receiving groove (21). A rotating body (24) for connecting with a key is damped and rotatably connected in the clavicle receiving groove (22). The rotating body (24) is drivenly connected to the bolt (23) to move the bolt top (4) out of the bolt receiving groove (21). An electric unlocking component (3) is provided on the outer handle seat (1). The electric unlocking component (3) is connected to the bolt top drive component (5) and is used to allow the bolt top drive component (5) to move the bolt top (4) out of the bolt receiving groove (21).

2. The door lock according to claim 1, characterized in that: The bolt top drive component (5) includes a drive motor (51), a connecting spring (52), and a transmission block (53). The drive motor (51) is disposed in the outer mounting cavity (11). The connecting spring (52) is sleeved on the output shaft of the drive motor (51) and is fixedly connected to the bolt top (4). The transmission block (53) is connected to the output shaft of the drive motor (51) and passes through the pitch of the connecting spring (52).

3. The door lock according to claim 1, characterized in that: The rotating body (24) is eccentrically connected to a drive block (25) at one end near the bolt (23); the bolt (23) is provided with a drive groove (26) for the drive block (25) to be inserted into, the drive groove (26) has an unlocking part (261) and a locking part (262) that abut against the drive block (25), when the drive block (25) abuts against the unlocking part (261), the bolt (23) causes the bolt top (4) to move out of the bolt receiving groove (21), when the drive block (25) abuts against the locking part (262), the bolt top (4) can move into the bolt receiving groove (21).

4. The door lock according to claim 1, characterized in that: A rotation reset member (14) is provided between the outer handle (2) and the outer handle seat (1). The rotation reset member (14) is used to reset the outer handle (2) to the starting position after the outer handle (2) is rotated by a predetermined angle.

5. The door lock according to claim 1, characterized in that: It also includes an inner handle base (6), an inner handle (7), a connecting core (8), and an anti-theft component (9). The inner handle (7) is rotatably mounted on the inner handle base (6). The connecting core (8) is connected to the inner handle (7) and the outer handle (2) respectively. The anti-theft component (9) is set on the inner handle base (6) and is used to restrict the rotation of the inner handle (7).

6. The door lock according to claim 5, characterized in that: The inner handle seat (6) is provided with an inner mounting cavity (61); the inner handle (7) includes a grip part (71) and a connecting part (72), the grip part (71) is located outside the inner mounting cavity (61); one end of the connecting part (72) is connected to the grip part (71), and the other end is connected to the connecting core (8), the connecting part (72) is prismatic; the anti-theft component (9) includes an anti-rotation plate (91) and an anti-rotation plate drive component (92), the anti-rotation plate (91) is slidably disposed in the inner mounting cavity (61), the anti-rotation plate (91) is provided with an anti-rotation notch (911) adapted to the connecting part (72); the anti-rotation plate drive component (92) is connected to the anti-rotation plate (91).

7. The door lock according to claim 6, characterized in that: The anti-rotation plate drive component (92) includes a rotating handle (921), a drive cam (922), an abutment block (923), and an abutment elastic member (924). One end of the rotating handle (921) is located outside the inner mounting cavity (61), and the other end rotates into the inner mounting cavity (61). The drive cam (922) is connected to the end of the rotating handle (921) located in the inner mounting cavity (61). The abutment block (923) is connected to the anti-rotation plate (91), and the abutment block (923) abuts against the peripheral surface of the drive cam (922). The abutment elastic member (924) is connected to the anti-rotation plate (91), and the abutment elastic member (924) is used to keep the abutment block (923) and the drive cam (922) in contact.

8. The door lock according to claim 1, characterized in that: The electric unlocking device (3) is one of the following: password unlocking device, fingerprint recognition unlocking device, face recognition unlocking device, and NFC recognition unlocking device.

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