rear lock and door lock

Abstract

The application relates to a back lock and a door lock, the back lock comprising a back shell, a supporting seat and a battery compartment, the back shell comprising a back base and a back lock shell, one side of the back base facing the back lock shell being provided with a containing groove and a containing hole communicated with the containing groove, the containing hole penetrating through the back base along the axial direction of the back base; the supporting seat is arranged in the back lock shell and at least partially contained in the containing groove, a back torsional spring being arranged between the supporting seat and the back base; one side of the supporting seat facing the containing hole is provided with a back lock seat, the back lock seat being inserted into the containing hole; the back lock seat is provided with a back lock cavity for assembling a lock rod; one side of the supporting seat away from the back lock seat is provided with a connecting seat; the battery compartment is arranged in the back lock shell and located at one side of the supporting seat away from the back base; one side of the battery compartment facing the supporting seat is provided with a connecting cavity, the connecting seat is penetrated into the connecting cavity, and the battery compartment and the connecting seat are fixed through fasteners. The application can reduce the axial dimension of the back lock.

Description

Technical Field

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

[0002] Door locks are devices that secure doors mechanically or electronically, and are widely used in homes and public places. A typical door lock consists of a front lock mounted on the outside of the door, a rear lock mounted on the inside, and a latch mounted on the door. The rear lock usually contains a battery. In related technologies, the rear lock is relatively long along its axis. Utility Model Content

[0003] This application provides a rear lock and a door lock to reduce the size of the rear lock.

[0004] Firstly, this application provides a rear lock, comprising: The rear housing includes a rear base and a rear lock housing. The rear base has a receiving groove and a receiving hole communicating with the receiving groove on the side facing the rear lock housing. The receiving hole penetrates the rear base along the axial direction of the rear base. A support base is disposed within the rear lock housing, and the support base is at least partially accommodated within the receiving groove. A rear torsion spring is provided between the support base and the rear base. A rear lock seat is provided on the side of the support base facing the receiving hole, and the rear lock seat is inserted into the receiving hole. The rear lock seat has a rear lock cavity for assembling a lock rod. A connecting seat is provided on the side of the support base opposite to the rear lock seat. The battery compartment is located inside the rear lock housing and on the side of the support base away from the rear base; the side of the battery compartment facing the support base has a connecting cavity, the connecting base passes through the connecting cavity, and the battery compartment is fixed to the connecting base by fasteners.

[0005] Furthermore, the side of the battery compartment is provided with a first positioning groove that communicates with the connecting cavity; the inner wall of the rear lock shell is provided with a second positioning groove, and the second positioning groove and the first positioning groove are correspondingly arranged. The connector includes: A first connector is disposed on the side of the support seat opposite to the rear lock seat and extends in a direction away from the support seat; the first connector is disposed corresponding to the rear lock seat, and the rear lock cavity extends into the first connector; the first connector passes through the connecting cavity. The second connector is spaced apart from the first connector and is located near the edge of the support base; the second connector is provided with a positioning element; the second connector passes through the connecting cavity, and the positioning element passes through the first positioning groove and the second positioning groove.

[0006] Furthermore, the connecting cavity includes a first connecting hole and a second connecting hole arranged at intervals, the second connecting hole communicating with the first positioning groove; the first connecting member passes through the first connecting hole, and the second connecting member passes through the second connecting hole.

[0007] Furthermore, there are two first positioning slots, which are symmetrically distributed on the two sides of the battery compartment. There are two second connectors, and each of the two second connectors is provided with a positioning element.

[0008] Furthermore, the first connector has a first threaded hole on the side opposite to the support base; the rear lock housing is connected and fixed to the first connector by a first fastener threaded into the first threaded hole; And / or, the second connector has a second threaded hole on the side opposite to the support base; the battery compartment is connected and fixed to the second connector by a second fastener threaded into the second threaded hole.

[0009] Furthermore, the periphery of the support base extends away from the rear lock base to form a skirt wall, and the skirt wall is provided with a plurality of mating grooves arranged at intervals. The inner wall of the rear lock housing is provided with a plurality of mating ribs arranged at intervals, and the mating ribs are positioned and engaged with the mating grooves.

[0010] Furthermore, it also includes a circuit board and a cover, the cover being connected to the side of the battery compartment away from the support base and enclosing it to form a circuit cavity, the circuit board being disposed within the circuit cavity.

[0011] Furthermore, it also includes a toggle switch, the cover is provided in the first button hole connected to the circuit cavity, the rear lock shell is provided with a second button hole corresponding to the first button hole, the circuit board is provided with multiple mode switching positions, and the toggle switch is movably disposed in the first button hole and the second button hole; the toggle switch can be moved to different mode switching positions to switch the working mode.

[0012] Furthermore, the rear lock seat is provided with a limiting groove, and the rear lock seat passes through the receiving hole. The limiting groove is located on the side of the rear base away from the support seat; a limiting ring is provided in the limiting groove.

[0013] Secondly, this application provides a door lock, including the rear lock as described above.

[0014] The technical solution provided in this application has the following advantages compared with the prior art: In this application's technical solution, the rear base is used to fix the door body. The rear base has a receiving cavity, which provides a certain amount of space for the support base, allowing the support base and the rear base to overlap in the axial direction, thus reducing the axial dimension of the rear lock. The battery compartment is used to install the battery. The support base is inserted into the connecting cavity of the battery compartment through a connecting seat, achieving a stable connection while reducing the axial dimension. The support base provides force support for the battery compartment and the rear lock housing. When the rear lock housing is rotated, the support base drives the rear lock seat to rotate, thereby driving the lock rod to rotate and achieving the purpose of unlocking; then, the torsion spring drives the support base to drive the rear lock housing to return to its original position. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 This is a schematic diagram of the structure of a door lock provided in an embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the middle and rear lock structure; Figure 3 for Figure 1 A schematic diagram of the rear center lock from another angle; Figure 4 for Figure 2 Exploded view of the middle and rear lock; Figure 5 for Figure 4 Schematic diagram of the middle and rear base; Figure 6 for Figure 4 Schematic diagram of the middle and rear locking shell; Figure 7 for Figure 4 A schematic diagram of the structure of the central support.

[0019] Explanation of reference numerals in the attached figures: Front lock 1, rear lock 2, bolt 3, locking bar 4 Rear base 21, receiving groove 21a, receiving hole 21b, Rear lock housing 22, second positioning groove 22a, mating rib 221, second button hole 22b, fastening hole 22c, cover 222. Support base 23, rear lock base 231, rear lock cavity 231a, limiting groove 231b, connecting base 232, first connecting member 2321, first threaded hole 2321a, second connecting member 2322, second threaded hole 2322a, positioning member 2323, skirt wall 233, mating groove 233a, limiting ring 234. Rear torsion spring 24, Battery compartment 25, connecting cavity 25a, first connecting hole 251a, second connecting hole 252a, first positioning groove 25b. Second fastener 262 Circuit board 27, cover 28, first button hole 28a, toggle switch 29. Detailed Implementation

[0020] 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.

[0021] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0022] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0023] This application provides a rear lock 2, which can be applied to door locks, such as... Figure 1 As shown, the door lock includes a front lock 1, a rear lock 2, and a bolt 3. The front lock 1 is installed on the outside of the door, the rear lock is installed on the inside of the door, and the bolt 3 is installed on the door. The front lock 1 and the rear lock are connected to the bolt 3 via locking rods 4, so that the bolts of the bolt 3 can be moved by the locking rods to unlock and lock the door.

[0024] Firstly, Figures 1 to 7 A rear lock 2 provided in this application embodiment includes a rear shell, a support base 23, and a battery compartment 25. The rear shell includes a rear base 21 and a rear lock shell 22. The rear base 21 is used to fix it to the door body. The side of the rear base 21 facing the rear lock shell 22 is provided with a receiving groove 21a and a receiving hole 21b communicating with the receiving groove 21a. The receiving hole 21b penetrates the rear base 21 along the axial direction of the rear base 21. The support base 23 is disposed in the rear lock shell 22, and the support base 23 is at least partially received in the receiving groove 21a. A rear torsion spring 24 is provided between the support base 23 and the rear base 21. The side of the support base 23 facing the receiving hole 21b is provided with a rear lock seat 231, which is inserted into the door. The rear lock seat 231 is provided with a rear lock cavity 231a for assembling the lock rod 4; the support seat 23 is provided with a connecting seat 232 on the side opposite to the rear lock seat 231; the battery compartment 25 is provided in the rear lock housing 22 and is located on the side of the support seat 23 opposite to the rear base 21; the side of the battery compartment 25 facing the support seat 23 is provided with a connecting cavity 25a, the connecting seat 232 passes through the connecting cavity 25a, and the battery compartment 25 is fixed to the connecting seat 232 by fasteners.

[0025] The rear base 21 has a receiving cavity, which provides a certain amount of space for the support base 23, allowing the support base 23 and the rear base 21 to overlap in the axial direction, thus reducing the axial dimension of the rear lock 2. The battery compartment 25 is used to install the battery. The support base 23 is inserted into the connecting cavity 25a of the battery compartment 25 through the connecting seat 232, achieving a stable connection while reducing the axial dimension. The support base 23 provides force support for the battery compartment 25 and the rear lock housing 22. When the rear lock housing 22 is rotated, the support base 23 drives the rear lock seat 231 to rotate, thereby driving the lock rod 4 to rotate to achieve the purpose of unlocking; and the rear torsion spring 24 drives the support base 23 to drive the rear lock housing 22 to return to its original position.

[0026] Understandably, the support base 23 can be made of a rigid material, such as steel. The battery compartment 25 and the rear cover can be made of lightweight materials, such as plastic.

[0027] like Figure 4 and Figure 6 As shown, in some embodiments, the side of the battery compartment 25 is provided with a first positioning groove 25b communicating with the connecting cavity 25a; the inner wall of the rear lock housing 22 is provided with a second positioning groove 22a, and the second positioning groove 22a and the first positioning groove are correspondingly arranged. The connecting seat 232 includes a first connecting member 2321 and a second connecting member 2322. The first connecting member 2321 is located on the side of the support seat 23 away from the rear lock seat 231 and extends in a direction away from the support seat 23. The first connecting member 2321 is provided corresponding to the rear lock seat 231, and the rear lock cavity 231a extends into the first connecting member 2321. The first connecting member 2321 passes through the connecting cavity 25a. The second connector 2322 is spaced apart from the first connector 2321, and the second connector 2322 is located near the edge of the support base 23; the second connector 2322 is provided with a positioning element 2323; the second connector 2322 passes through the connecting cavity 25a, and the positioning element 2323 passes through the first positioning groove 25b and the second positioning groove 22a.

[0028] In this embodiment, the first connecting member 2321 extends along the axis of the rear lock 2, and the rear lock cavity 231a extends to the first connecting member 2321, allowing the locking rod 4 to be inserted deeper into the rear lock cavity 231a, thus improving the connection stability between the locking rod 4 and the rear lock cavity 231a. Simultaneously, the cooperation between the positioning member 2323 and the first positioning groove 25b and the second positioning groove 22a enables rapid positioning during assembly. Furthermore, it improves the synchronization of the rear lock housing 22, battery compartment 25, and support base 23 when the rear lock 2 is rotated, preventing relative deflection.

[0029] like Figure 4As shown, in some embodiments, the connecting cavity 25a includes a first connecting hole 251a and a second connecting hole 252a spaced apart, the second connecting hole 252a communicating with the first positioning groove 25b; a first connecting member 2321 passes through the first connecting hole 251a, and a second connecting member 2322 passes through the second connecting hole 252a. The shape of the first positioning hole is adapted to the first connecting member 2321, and the shape of the second positioning hole is adapted to the first connecting member, thus serving to position and stabilize the connection.

[0030] like Figure 4 and Figure 7 As shown, in some embodiments, there are two first positioning grooves 25b, which are symmetrically distributed on the two sides of the battery compartment 25; there are also two second connectors 2322, each equipped with a positioning element 2323. This ensures uniform stress distribution and improves structural stability.

[0031] like Figure 4 and Figure 7 As shown, in some embodiments, the first connector 2321 has a first threaded hole 2321a on the side opposite to the support base 23; the rear lock housing 22 is connected and fixed to the first connector 2321 by a first fastener (not labeled in the figure) threaded to the first threaded hole 2321a; the second connector 2322 has a second threaded hole 2322a on the side opposite to the support base 23; the battery compartment 25 is connected and fixed to the second connector 2322 by a second fastener 262 threaded to the second threaded hole 2322a. This securely connects the connector 232 and the battery compartment 25, improving the connection strength. (See reference...) Figure 6 The rear lock housing 22 is provided with a fastening hole 22c corresponding to the first threaded hole 2321a to facilitate the installation of the second connector 2322. At the same time, a cover 222 that is easy to remove is provided at the fastening hole 22c position of the rear lock housing 22 to serve both aesthetic and protective purposes.

[0032] like Figure 6 and Figure 7 As shown, in some embodiments, the periphery of the support base 23 extends away from the rear lock base 231 to form a skirt wall 233, and the skirt wall 233 is provided with a plurality of mating grooves 233a arranged at intervals; the inner wall of the rear lock housing 22 is provided with a plurality of mating ribs 221 arranged at intervals, and the mating ribs 221 are positioned and engaged with the mating grooves 233a.

[0033] It is understandable that by cooperating with the positioning of the groove 233a and the rib 221, the positioning of the support base 23 and the rear lock housing 22 can be further realized, and the force is more balanced when the rear lock housing 22 drives the support base 23, making it easier for the user to apply force to rotate the rear lock 2.

[0034] like Figure 4 As shown, in some embodiments, a circuit board 27 and a cover 28 are also included. The cover 28 is connected to the side of the battery compartment 25 away from the support base 23 and encloses it to form a circuit cavity, in which the circuit board 27 is disposed. The circuit board 27 of the rear lock 2 can be connected to the control board in the front lock 1. The cover 28 provides protection for the circuit board 27.

[0035] like Figure 4 and Figure 6 As shown, in some embodiments, a toggle switch 29 is also included. The cover 28 is provided in the first button hole 28a connected to the circuit cavity. The rear lock shell 22 is provided with a second button hole 22b corresponding to the first button hole 28a. The circuit board 27 is provided with multiple mode switching positions. The toggle switch 29 is movably disposed in the first button hole 28a and the second button hole 22b. The toggle switch 29 can be moved to different mode switching positions to switch the working mode.

[0036] It is understandable that by moving the toggle switch 29 to different mode switching positions, different working modes can be switched. After the control board obtains different circuit information from the circuit board 27, it determines the working mode and then controls the front lock 1 to enter the corresponding working mode.

[0037] In some embodiments, at least the following three operating modes may be present: Channel mode: In this working mode, the front lock 1 is always open, and can be unlocked directly without verifying fingerprint or password.

[0038] Standard mode: In this working mode, all compliant fingerprint passwords and other passwords can be used to unlock the door normally.

[0039] Administrator Mode: In this mode, only the administrator's fingerprint and password can unlock the door; user passwords and fingerprints are not authorized to operate.

[0040] like Figure 2 , Figure 4 and Figure 7 As shown, in some embodiments, the rear lock seat 231 is provided with a limiting groove 231b. After the rear lock seat 231 passes through the receiving hole 21b, the limiting groove 231b is located on the side of the rear base 21 away from the support seat 23; a limiting ring 234 is provided in the limiting groove 231b.

[0041] It is understandable that the limiting ring 234 serves as a limiting device to prevent the rear lock seat 231 from detaching from the rear base 21.

[0042] Secondly, such as Figure 1As shown, this application provides a door lock, including the rear lock 2 as described above. The specific structure of the rear lock 2 is as described in the above embodiments. Since this door lock adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0043] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0044] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0049] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0050] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rear lock (2), characterized in that, include: The rear housing includes a rear base (21) and a rear lock housing (22). The rear base (21) has a receiving groove (21a) and a receiving hole (21b) communicating with the receiving groove (21a) on the side facing the rear lock housing (22). The receiving hole (21b) penetrates the rear base (21) along the axial direction of the rear base (21). A support base (23) is disposed within the rear lock housing (22), and the support base (23) is at least partially accommodated within the receiving groove (21a). A rear torsion spring (24) is provided between the support base (23) and the rear base (21). A rear lock seat (231) is provided on the side of the support base (23) facing the receiving hole (21b), and the rear lock seat (231) is inserted into the receiving hole (21b). The rear lock seat (231) is provided with a rear lock cavity (231a) for assembling the lock rod (4). A connecting seat (232) is provided on the side of the support base (23) away from the rear lock seat (231). The battery compartment (25) is located inside the rear lock housing (22) and on the side of the support base (23) away from the rear base (21). The battery compartment (25) has a connecting cavity (25a) on the side facing the support base (23), and the connecting seat (232) passes through the connecting cavity (25a) and is fixed to the battery compartment (25) and the connecting seat (232) by fasteners.

2. The rear lock (2) according to claim 1, characterized in that, The battery compartment (25) has a first positioning groove (25b) on its side that communicates with the connecting cavity (25a); the inner wall of the rear lock shell (22) has a second positioning groove (22a), and the second positioning groove (22a) and the first positioning groove are correspondingly arranged. The connector (232) includes: A first connector (2321) is disposed on the side of the support base (23) opposite to the rear lock seat (231) and extends in a direction away from the support base (23); the first connector (2321) is disposed corresponding to the rear lock seat (231), and the rear lock cavity (231a) extends into the first connector (2321); the first connector (2321) passes through the connecting cavity (25a); The second connector (2322) is spaced apart from the first connector (2321) and is located near the edge of the support base (23). The second connector (2322) is provided with a positioning element (2323). The second connector (2322) passes through the connecting cavity (25a), and the positioning element (2323) passes through the first positioning groove (25b) and the second positioning groove (22a).

3. The rear lock (2) according to claim 2, characterized in that, The connecting cavity (25a) includes a first connecting hole (251a) and a second connecting hole (252a) arranged at intervals, the second connecting hole (252a) communicating with the first positioning groove (25b); the first connecting member (2321) passes through the first connecting hole (251a), and the second connecting member (2322) passes through the second connecting hole (252a).

4. The rear lock (2) according to claim 2, characterized in that, There are two first positioning slots (25b), and the two first positioning slots (25b) are symmetrically distributed on the two sides of the battery compartment (25); There are two second connectors (2322), and each of the two second connectors (2322) is provided with a positioning element (2323).

5. The rear lock (2) according to claim 2, characterized in that, The first connector (2321) has a first threaded hole (2321a) on the side opposite to the support base (23); the rear lock shell (22) is connected and fixed to the first connector (2321) by a first fastener that is threaded to the first threaded hole (2321a); And / or, the second connector (2322) has a second threaded hole (2322a) on the side opposite to the support base (23); the battery compartment (25) is connected and fixed to the second connector (2322) by a second fastener (262) threaded to the second threaded hole (2322a).

6. The rear lock (2) according to claim 1, characterized in that, The periphery of the support base (23) extends away from the rear lock base (231) to form a skirt wall (233), and the skirt wall (233) is provided with a plurality of mating grooves (233a) arranged at intervals; The inner wall of the rear lock housing (22) is provided with a plurality of mating ribs (221) arranged at intervals, and the mating ribs (221) are positioned and engaged with the mating grooves (233a).

7. The rear lock (2) according to claim 1, characterized in that, It also includes a circuit board (27) and a cover (28), the cover (28) being connected to the side of the battery compartment (25) away from the support base (23) and enclosing it to form a circuit cavity, the circuit board (27) being disposed inside the circuit cavity.

8. The rear lock (2) according to claim 7, characterized in that, It also includes a toggle switch (29), the cover (28) is provided in the first button hole (28a) connected to the circuit cavity, the rear lock shell (22) is provided with a second button hole (22b) corresponding to the first button hole (28a), the circuit board (27) is provided with multiple mode switching positions, the toggle switch (29) is movably disposed in the first button hole (28a) and the second button hole (22b); the toggle switch (29) can be moved to different mode switching positions to switch the working mode.

9. The rear lock (2) according to any one of claims 1 to 8, characterized in that, The rear lock seat (231) is provided with a limiting groove (231b). The rear lock seat (231) passes through the receiving hole (21b) and the limiting groove (231b) is located on the side of the rear base (21) away from the support seat (23). A limiting ring (234) is provided in the limiting groove (231b).

10. A door lock, characterized in that, Includes the rear lock (2) as described in any one of claims 1 to 9.

Images