Door lock

Abstract

Disclosed in the present application is a door lock. The door lock comprises a housing, a doorbell assembly and a lock cylinder cover structure, wherein the lock cylinder cover structure comprises a body, which has an accommodating cavity inside; a doorbell button of the doorbell assembly is arranged in the accommodating cavity; the body has a first mounting surface, and the body is configured to be detachably arranged on the housing, with the first mounting surface facing a lock cylinder hole of the housing; and the lock cylinder cover structure further comprises a guide member protruding from the first mounting surface, and the end of the guide member away from the first mounting surface is connected into the housing in a limited manner, such that the body can move relative to the housing, thereby enabling the first mounting surface to avoid or cover the lock cylinder hole. In the present application, one end of the guide member is arranged to extend into the housing and is connected into the housing in a limited manner, and thus the guide member guides the moving direction and position of the body and a structural member mounted to the body, thereby realizing smoother movement, preventing the guide member from being separated from the housing, limiting the telescopic range of the body relative to the housing, and preventing pulling caused by an excessive moving stroke of the guide member relative to the housing.

Description

A door lock

[0001] The present application claims priority from the Chinese patent application No. 202422365470.X filed on September 26, 2024 and entitled "A door lock", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of locks, and in particular to a door lock. BACKGROUND

[0003] Generally, a mechanical lock cylinder is arranged in a door lock, and a key is used to rotate the lock cylinder to lock or unlock the door. In the related art, in order to improve the security of the lock cylinder, a lock cylinder cover is arranged at the lock cylinder hole of the door lock shell to cover the lock cylinder and hide the installation of the lock cylinder. The lock cylinder cover can also be provided with a doorbell button, a circuit board and other electronic devices. The conductive elements connected to these electronic devices need to be connected to the structural members in the door lock shell. Therefore, the installation of the lock cylinder cover needs to take into account the activity requirements of the lock cylinder cover structure and the installation requirements of the conductive elements. If the lock cylinder cover is installed on the shell and the structure design is improper, there may be problems such as poor sealing, poor activity, etc. In addition, during the process of moving the lock cylinder cover, the conductive elements may be pulled and even broken.

[0004] SUMMARY

[0005] The embodiments of the present application provide a door lock, which can solve the problem that the installation of the lock cylinder cover structure cannot take into account the activity requirements of the lock cylinder cover structure and the installation requirements of the conductive elements.

[0006] The embodiments of the present application provide a door lock, which can solve the problem that the installation of the lock cylinder cover structure cannot take into account the activity requirements of the lock cylinder cover structure and the installation requirements of the conductive elements.

[0007] The shell has a lock cylinder hole;

[0008] The doorbell assembly includes a doorbell button;

[0009] The lock cylinder cover structure includes a body, the body has an accommodating cavity inside, the doorbell button is arranged in the accommodating cavity, the body has a first mounting surface, the body is arranged in the shell in a detachable manner, and the first mounting surface faces the lock cylinder hole;

[0010] The lock cylinder cover structure further includes a guide member protruding from the first mounting surface, one end of the guide member away from the first mounting surface is connected to the shell in a limiting manner, so that the body can move relative to the shell, and the first mounting surface avoids or covers the lock cylinder hole.

[0011] Based on the door lock of the embodiment of the application, the one end of the guide member is inserted into the shell of the door lock and is limitedly connected in the shell, so that the body can be extended, retracted and rotated relative to the shell, thereby the body can cover or expose the lock cylinder hole, the guide member can guide the moving direction and position of the body and the structural member installed on the body, the movement is more stable, the guide member is prevented from being separated from the shell, the extension and retraction range of the body relative to the shell is limited, and the pulling caused by the too large moving stroke of the guide member relative to the shell is prevented. In addition, the interior of the guide member can be hollowed out, so that the conductive element in the body can be inserted into the shell through the guide member and be in an unfolding state under the protection of the guide member, the path of the conductive element in the body inserted into the shell is smooth, the conductive element is prevented from being stuck due to the too large moving range, and the smoothness of the entire movement of the lock cylinder cover structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0013] Fig. 1 is a perspective structural schematic view of the door lock of an embodiment of the present application;

[0014] Fig. 2 is a sectional view of the lock cylinder cover structure of an embodiment of the present application;

[0015] Fig. 3a is a partial sectional view of the body in the first position of an embodiment of the present application;

[0016] Fig. 3b is a partial enlarged view of M in Fig. 3a;

[0017] Fig. 4a is a partial sectional view of the body in the second position of an embodiment of the present application;

[0018] Fig. 4b is a partial enlarged view of N in Fig. 4a;

[0019] Fig. 5 is an exploded structural schematic view of the lock cylinder cover structure of an embodiment of the present application.

[0020] Reference signs:

[0021] 10, lock cylinder cover structure; 10a, accommodating cavity;

[0022] 100, body; 110, guide member; 101, guide channel; 111, first end; 112, second end; 1111, first clamping surface; 1112, second clamping surface; 120, reinforcing plate; 121, reinforcing surface; 122, avoiding opening;

[0023] 130, mounting seat; 1311, wire hole; 131, seat body; 1301, first mounting surface; 1302, second mounting surface; 132, second flange; 1312, mating opening; 133, positioning column; 134, reinforcing screw;

[0024] 140, key cap; 141, key cap body; 142, first flange; 150, first sealing ring; 160, second sealing ring;

[0025] 200, doorbell assembly; 210, doorbell button; 220, conductive element; 230, circuit board;

[0026] 300, limiting assembly; 310, limiting washer; 320, limiting nut;

[0027] 500, mating assembly; 520, second mating part; 521, convex cap; 530, elastic piece;

[0028] 20, door lock; 20a, lock cylinder hole; 21, outer shell; 22, lock cylinder; 20b, mounting groove; 211, butt joint surface; A, preset direction. Embodiments of the present application

[0029] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0030] The inventor found that when the lock cover structure has electronic devices inside, the electronic devices are electrically connected with the conductive element, the conductive element extends into the door lock and is electrically connected with other electronic devices or power supply inside the door lock. Since the lock cover structure needs to be actuated to cover or expose the lock cylinder, the conductive element will be actuated during the movement of the lock cover structure, which is easy to cause the conductive element to loosen, and also easy to cause the conductive element to wrinkle and jam, or even be pulled off. Based on this, the present application provides a door lock.

[0031] As shown in FIG. 1, it is a perspective structural schematic diagram of a door lock 20 of an embodiment of the present application, the door lock 20 comprises a lock cover structure 10, the lock cover structure 10 comprises a body 100, the body 100 is used for being detachably arranged on the outer shell 21 of the door lock 20, the body 100 has a first mounting surface, the first mounting surface faces the lock cylinder hole 20a of the door lock 20, the lock cylinder 22 is installed in the lock cylinder hole 20a of the door lock 20, when the body 100 is installed on the outer shell 21 of the door lock 20, the first mounting surface covers the lock cylinder hole 20a of the door lock 20, when it is needed to use a key to insert into the lock cylinder 22 to lock or unlock, the body 100 can be actuated, the first mounting surface 1301 is removed, and the lock cylinder 22 is exposed.

[0032] The door lock 20 further comprises a doorbell assembly 200, which is installed inside the body 100. Specifically, as shown in FIG. 2, the doorbell assembly 200 comprises a doorbell button 210 and a conductive element 220 electrically connected to the doorbell button 210. The body 100 has a receiving cavity 10a inside, the doorbell button 210 is arranged in the receiving cavity 10a, and the position of the doorbell button 210 relative to the body 100 is fixed. The lock core cover structure 10 further comprises a guide 110 protruding from the first mounting surface 1301, one end of the guide 110 away from the first mounting surface 1301 is limitingly connected to the shell 21 of the door lock 20, the guide 110 has a guide channel 101 communicating with the receiving cavity 10a, the conductive element 220 passes through the guide channel 101 and extends into the shell 21 of the door lock 20, and the guide 110 is arranged to be able to extend, retract and rotate relative to the shell 21 of the door lock 20. During the movement of the guide 110 relative to the shell 21 of the door lock 20, the entire structure of the lock core cover structure 10 moves together. When the guide 110 is retracted relative to the shell 21 of the door lock 20, the first mounting surface 1301 of the body 100 covers the lock core hole 20a. When the body 100 is rotated, the guide 110 extends relative to the shell 21 of the door lock 20, and the body 100 is further rotated to rotate the guide 110 relative to the door lock 20, so that the lock core hole 20a can be exposed.

[0033] In the present application, the position of the doorbell button 210 relative to the body 100 is fixed, the conductive element 220 electrically connected to the doorbell button 210 extends into the guide channel 101 of the guide 110, the position of the guide 110 relative to the receiving cavity 10a is fixed, the guide 110 has a fixed shape, and when the conductive element 220 passes through the guide channel 101 of the guide 110, the guide 110 can limit the movement range of the conductive element 220, thereby improving the connection stability of the end of the conductive element 220 connected to the doorbell button 210. At the same time, one end of the guide 110 away from the first mounting surface 1301 extends into the door lock 20, so that the guide 220 also extends into the door lock 20. The guide 110 can provide protection for the conductive element 220 during the entire extension process of the conductive element 220 into the door lock 20. One end of the guide 110 away from the first mounting surface 1301 is also limitingly connected to the shell 21 of the door lock 20, preventing the guide 110 from separating from the shell 21 of the door lock 20. Therefore, the extension and retraction range of the conductive element 220 relative to the shell 21 of the door lock 20 can also be limited, preventing the guide 110 from moving too far relative to the shell 21 of the door lock 20 and causing the conductive element 220 to be pulled. In addition, the guide 110 limits the movement range of the conductive element 220, so that the conductive element 220 can always be in an extended state, preventing the conductive element 220 from being bent and causing jamming, thereby improving the smoothness during the entire movement process of the lock core cover structure 10.

[0034] The body 100 has an extended state and a retracted state, as shown in FIG. 3a and FIG. 3b, which are structural schematic diagrams of the body 100 in the retracted state, in which the guide 110 is retracted relative to the shell 21 of the door lock 20, and the first mounting surface 1301 of the body 100 covers the lock cylinder hole 20a, as shown in FIG. 4a and FIG. 4b, which are structural schematic diagrams of the body 100 in the extended state, in which the guide 110 is extended relative to the shell 21 of the door lock 20, and the guide 110 is rotatable relative to the shell 21 of the door lock 20, that is, the body 100 is rotatable relative to the shell 21 of the door lock 20, and in the extension direction of the guide 110, the first mounting surface 1301 of the body 100 can cover the lock cylinder hole 20a, or the body 100 can be rotated to make the first mounting surface 1301 avoid the lock cylinder hole 20a in the extension direction of the guide 110.

[0035] In the extended state of the body 100, the body 100 has a first position, in which the first mounting surface 1301 is farthest from the lock cylinder hole 20a in the extension direction of the guide 110, and the guide 110 will no longer continue to extend relative to the shell 21 of the door lock 20, and the guide 110 is retracted in the direction opposite to the extension direction, and in the retracted state of the body 100, the body 100 has a second position, in which the first mounting surface 1301 is closest to the lock cylinder hole 20a in the extension direction of the guide 110, and due to the resistance of the shell 21 of the door lock 20, the guide 110 will no longer continue to retract relative to the shell 21 of the door lock 20. In the extension direction and the retraction direction of the guide 110 relative to the shell 21, the travel of the body 100 moving back and forth between the first position and the second position is the extension and retraction travel of the conductive element 220.

[0036] As shown in FIG. 4a, the lock cylinder cover structure 10 further includes a limiting assembly 300, one end of the guide 110 is movably arranged in the shell 21 of the door lock 20 and connected with the limiting assembly 300, in the first position, the guide 110 is extended relative to the shell 21 of the door lock 20, the limiting assembly 300 abuts against the shell 21 of the door lock 20, and the guide 110 is prevented from disengaging from the shell 21 of the door lock 20 by the stop of the limiting assembly 300. In the embodiments of the present application, the position of the limiting assembly 300 relative to the guide 110 can be fixed, in the first position, the limiting assembly 300 abuts against the shell 21 of the door lock 20, and in the second position, the limiting assembly 300 is separated from the shell 21 of the door lock 20, and the travel of the body 100 moving back and forth between the first position and the second position can be limited by arranging the position of the limiting assembly 300 mounted on the guide 110.

[0037] The guide 110 has a first end 111 extending into the housing 21 of the door lock 20, and the conductive element 220 extends out of the guide 110 from the surface of the first end 111 away from the first mounting surface 1301. In some embodiments, the limiting assembly 300 includes a limiting washer 310 and a limiting nut 320, the limiting washer 310 is sleeved on the periphery of the guide 110, and the limiting nut 320 is threadedly connected to the first end 111 away from the first mounting surface 1301. In the first position, the limiting washer 310 abuts against the housing 21 of the door lock 20, and the limiting washer 310 prevents the guide 110 from being separated from the housing 21 of the door lock 20 in the first position by the stop of the limiting washer 310.

[0038] In some embodiments, the limiting washer 310 and the limiting nut 320 are installed on the guide 110 and fixed relative to the position of the guide 110 to prevent the limiting washer 310 and the limiting nut 320 from moving and making knocking noise during the movement of the guide 110. Optionally, the outer surface of the guide 110 includes a first clamping surface 1111 and a smooth surface arranged at an angle, please refer to FIG. 2, the limiting washer 310 is in contact with the first clamping surface 1111 to prevent the limiting washer 310 from rotating around the guide 110. The outer surface of the guide 110 also includes a second clamping surface 1112 arranged at an angle with the first clamping surface 1111 and arranged at an angle with the extension direction of the guide 110. After the limiting nut 320 is installed on the guide 110, the limiting nut 320 abuts against the limiting washer 310 to make the limiting washer 310 abut against the second clamping surface 1112, preventing the limiting washer 310 from moving relative to the guide 110 along the extension direction of the guide 110.

[0039] In some embodiments, the guide 110 moves relative to the housing 21 of the door lock 20 and drives the body 100 to move in a straight line direction to retract or extend relative to the housing 21, as shown in FIG. 2, the guide 110 extends along a preset direction A, the preset direction A is perpendicular to the first mounting surface 1301, the first mounting surface 1301 is a plane, that is, the guide 110 is in the form of a rod, and the guide 110 is arranged to move back and forth relative to the housing 21 of the door lock 20 along the preset direction A, the movement stroke is simple and convenient for smoothly extending or retracting the guide 110. The housing 21 of the door lock 20 has a mounting hole, the guide 110 passes through the mounting hole and extends into the internal space of the housing 21, and the outer surface of the guide 110 is in sliding contact with the wall surface of the housing 21 defining the mounting hole to guide the guide 110 to smoothly and stably move relative to the housing 21 of the door lock 20.

[0040] In the position where the guide 110 extends out of the shell 21 of the door lock 20, the guide 110 is arranged to rotate about its axis relative to the shell 21 of the door lock 20, and the outer contour of the portion where the guide 110 penetrates the mounting hole can be circular, so that the guide 110 can directly rotate about its axis relative to the shell 21 of the door lock 20. When the guide 110 rotates about its axis relative to the shell 21 of the door lock 20, the entire body 100 will also rotate about the guide 110, and the body 100 rotates back and forth between the first rotation position and the second rotation position, in the first rotation position, the first mounting surface 1301 covers the lock cylinder hole 20a, and in the second rotation position, the first mounting surface 1301 avoids the lock cylinder hole 20a.

[0041] Of course, in other embodiments, the guide 110 can also be arranged to move relative to the shell 21 of the door lock 20 and drive the body 100 to move along a curved direction to retract or extend relative to the shell 21, for example, the guide 110 is in the shape of an elliptical arc, when the guide 110 moves relative to the shell 21 of the door lock 20, the trajectory of the movement of the body 100 is in the shape of an elliptical arc, and when the body 100 gradually extends relative to the shell 21, the body 100 is flipped relative to the shell 21, and the lock cylinder hole 20a is gradually exposed. The above is only an exemplary introduction, and the shape of the guide 110 is not limited in the embodiments of the present application, and any structure that can smoothly drive the body 100 to move along a curved direction when the guide 110 moves relative to the shell 21 of the door lock 20 is applicable to the present application.

[0042] In some embodiments, the lock cylinder cover structure 10 further comprises a positioning assembly (not shown in the figure), which comprises a first positioning part, a second positioning part and a third positioning part, the first positioning part is installed on the body 100, and the second positioning part and the third positioning part are installed on the shell 21 of the door lock 20. In the first rotation position of the body 100, the first positioning part corresponds to the second positioning part, one of the first positioning part and the second positioning part has magnetism, the other has magnetism or contains iron material, so that the first positioning part and the second positioning part are positioned by magnetic adsorption, and the position of the body 100 relative to the shell 21 in the first rotation position. In the second rotation position of the body 100, the first positioning part corresponds to the third positioning part, one of the first positioning part and the third positioning part has magnetism, the other has magnetism or contains iron material, so that the first positioning part and the third positioning part are positioned by magnetic adsorption, and the position of the body 100 relative to the shell 21 in the second rotation position.

[0043] The body 100 comprises a mounting base 130 having a first mounting surface 1301, wherein the first positioning portion is mountable to the mounting base 130. The guide member 110 protrudes from the first mounting surface 1301 of the mounting base 130, and the first mounting surface 1301 of the mounting base 130 is provided with a wire passing hole 1311 extending to the accommodating cavity 10a, and the conductive element 220 directly enters the guide channel 101 from the accommodating cavity 10a. The guide member 110 has a second end 112 opposite to the first end 111, and the guide channel 101 extends from the second end 112 to the first end 111 to pass through the guide member 110. The end surface of the second end 112 of the guide member 110 faces the first mounting surface 1301, so that the guide channel 101 is aligned with the wire passing hole 1311. The position of the guide member 110 relative to the mounting base 130 is fixed, and the gap between the guide member 110 and the mounting base 130 is sealed to seal the joint between the wire passing hole 1311 and the guide channel 101. In other embodiments, the guide member 110 and the mounting base 130 can be integrally provided, and the gap between the guide member 110 and the mounting base 130 can be directly provided without gap.

[0044] Since the guide member 110 needs to move relative to the housing 21 of the lock 20, water vapor may enter the interior of the housing 21 from the gap between the guide member 110 and the housing 21 of the lock 20. The body 100 further comprises a first sealing ring 150. The wall surface of the housing 21 comprises an abutting surface 211. The first sealing ring 150 is arranged to abut against the abutting surface 211 when the first mounting surface 1301 covers the lock cylinder hole 20a, so as to seal the gap between the body 100 and the housing 21.

[0045] In some embodiments, the first sealing ring 150 is sleeved on the periphery of the mounting base 130. When the guide member 110 moves smoothly relative to the housing 21 of the lock 20, the first mounting surface 1301 covers the lock cylinder hole 20a, and the guide member 110 protrudes from the first mounting surface 1301. The first sealing ring 150 is directly sleeved on the periphery of the first mounting base 130. When the guide member 110 is retracted relative to the housing 21, the first sealing ring 150 is arranged to abut against the surface of the housing 21. Thus, the area around the first mounting surface 1301 is sealed, thereby preventing water vapor from entering the interior of the housing 21. The sealing and waterproof performance is good, and there is no need to design a sealing and waterproof structure between the housing 21 and the guide member 110.

[0046] The body 100 further comprises a key cap 140 movably mounted to the mounting base 130, and a gap is defined between the key cap 140 and the mounting base 130. The doorbell key 210 is mounted to one of the key cap 140 and the mounting base 130, and the other of the key cap 140 and the mounting base 130 acts on the doorbell key 210 to trigger a doorbell signal when the key cap 140 and the mounting base 130 are moved towards each other, thereby prompting a user.

[0047] The body 100 further comprises a second sealing ring 160 connected to the key cap 140 and the mounting base 130 to seal the gap between the key cap 140 and the mounting base 130. Optionally, as shown in FIG. 5, the key cap 140 comprises a key cap body 141 and a first flange 142, and the mounting base 130 comprises a base body 131 having first and second mounting surfaces 1301 and 1302 oppositely arranged, and a second flange 132 protruding from the second mounting surface 1302 of the base body 131. The second flange 132 extends into the space surrounded by the first flange 142, and the key cap body 141 is arranged opposite to the base body 131. The first flange 142 protrudes from the surface of the key cap body 141 facing the base body 131, and the surface of the key cap body 141 away from the base body 131 is used for a user to touch. When the user presses the key cap body 141, the key cap 140 and the mounting base 130 can be moved towards each other to trigger the doorbell key 210. The second sealing ring 160 is sleeved on the periphery of the second flange 132 and abuts against the inner side surface of the first flange 142 to seal the gap between the first flange 142 and the second flange 132.

[0048] The doorbell assembly 200 further comprises a circuit board 230, the doorbell key 210 is mounted to the circuit board 230, and the doorbell key 210 is electrically connected to the circuit board 230. The number of the conductive elements 220 is at least one, and the conductive elements 220 can be electrically connected to the doorbell key 210 or the circuit board 230. In some other embodiments, the accommodating cavity 10a can further be provided with electronic devices such as a lamp bead and a fingerprint sensor, which can be electrically connected to the circuit board 230 and electrically connected to a power supply or a control system by the conductive elements 220 extending into the inside of the housing 21 of the door lock 20. The circuit board 230 is mounted to the base body 131 of the mounting base 130, and the doorbell key 210 is mounted to the surface of the circuit board 230 facing the key cap body 141. The key cap body 141 is moved towards the mounting base 130 to act on the doorbell key 210 to trigger a doorbell signal.

[0049] The lock core cover structure 10 further comprises a matching assembly, the matching assembly comprises a first matching part, a second matching part 520 and an elastic piece 530, the first matching part is protruded from the surface of the key cap main body 141 towards the seat body 131, the first mounting surface 1301 of the mounting seat 130 is provided with a matching opening 1312, the matching opening 1312 extends to the second mounting surface 1302, the second matching part 520 is connected with the first matching part through the matching opening 1312, the second matching part 520 further has a convex cap 521, the convex cap 521 does not enter the matching opening 1312, and the convex cap 521 is used to be attached to the first mounting surface 1301, so as to prevent the second matching part 520 from entering the accommodating cavity 10a from the matching opening 1312. One end of the elastic piece 530 is connected to the first matching part or the key cap 140, and the other end of the elastic piece 530 is connected to the mounting seat 130 or the second matching part 520, so that the key cap 140 is pushed to reset under the action of the elastic piece 530 after the key cap 140 and the mounting seat 130 are close to each other each time, and the key cap 140 is separated from the doorbell button 210.

[0050] In some embodiments, the first mounting surface 1301 of the mounting seat 130 has a geometric center, the doorbell button 210 can be arranged corresponding to the geometric center of the first mounting surface 1301, the number of the matching assembly is multiple groups, and the multiple groups of matching assemblies are arranged around the geometric center of the first mounting surface 1301, so that the multiple groups of matching assemblies can uniformly act on the key cap 140, and the key cap 140 can be more stably moved relative to the mounting seat 130.

[0051] The body 100 further comprises a reinforcing plate 120, the reinforcing plate 120 is sleeved on the periphery of the guide piece 110 and is integrally arranged with the guide piece 110, the reinforcing plate 120 is connected to the first mounting surface 1301 and is fixed to the mounting seat 130, thereby fixing the position of the guide piece 110 relative to the mounting seat 130, the reinforcing plate 120 has a large contact area with the first mounting surface 1301, which can effectively improve the stability of the guide piece 110 mounted on the mounting seat 130, and prevent the small contact area between the guide piece 110 and the mounting seat 130 from causing the separation or fracture of the guide piece 110 and the mounting seat 130.

[0052] When the guide piece 110 is retracted relative to the shell 21 of the door lock 20, the reinforcing plate 120 has a reinforcing surface 121 away from the first mounting surface 1301, the reinforcing surface 121 is attached to the surface of the shell 21, and the reinforcing surface 121 is a plane, so as to improve the stability of the attachment of the reinforcing plate 120 and the shell 21 of the door lock 20. The reinforcing surface 121 of the reinforcing plate 120 is further provided with an avoiding opening 122 penetrating through the reinforcing plate 120, the convex cap 521 of the second matching part 520 protrudes from the first mounting surface 1301 and is accommodated in the avoiding opening 122, so as to prevent the protruding convex cap 521 from affecting the mounting stability of the mounting seat 130 mounted on the shell 21 of the door lock 20.

[0053] In some embodiments, the reinforcing plate 120 covers the first mounting surface 1301 entirely, further increasing the contact area between the reinforcing plate 120 and the first mounting surface 1301, providing more comprehensive support for the mounting seat 130, preventing the mounting seat 130 from deforming. Among them, the first sealing ring 150 also extends to the reinforcing plate 120, so that the reinforcing plate 120 can also provide support for the first sealing ring 150, improving the installation stability of the first sealing ring 150.

[0054] In some embodiments, the reinforcing plate 120 is fixed to the mounting seat 130 by locking screws. Specifically, as shown in FIG. 5, the second mounting surface 1302 of the mounting seat 130 is provided with a plurality of positioning columns 133, each of which is coaxially provided with an internal threaded hole with the reinforcing plate 120, and a reinforcing screw 134 is arranged in the internal threaded hole to fix the reinforcing plate 120 to the mounting seat 130. The positioning column 133 for fixing the reinforcing plate 120 is provided on the second mounting surface 1302 of the mounting seat 130, making full use of the space between the keycap 140 and the mounting seat 130, and at the same time under the support of the reinforcing plate 120, it is helpful to reduce the thickness of the seat body 131 of the mounting seat 130.

[0055] When the circuit board 230 is installed in the mounting seat 130, the surface of the circuit board 230 is attached to the second mounting surface 1302 of the mounting seat 130, and the circuit board 230 is sleeved around the plurality of positioning columns 133. The plurality of positioning columns 133 guide the circuit board 230 to quickly align and preliminarily limit the position of the circuit board 230, and then the circuit board 230 is fixed to the mounting seat 130. Alternatively, the circuit board 230 is fixed to the mounting seat 130 by locking screws. In other embodiments, the circuit board 230 can also be fixed to the mounting seat 130 by other means, and the embodiments of the present application do not limit the way the circuit board 230 is fixed to the mounting seat 130. The specific way can be selected according to actual needs.

[0056] In some embodiments, the outer contour of the first mounting surface 1301 of the mounting seat 130 is circular, and at this time, the center of the circular outer contour of the first mounting surface 1301 is the geometric center of the first mounting surface 1301. The guide 110 is arranged to deviate from the center of the outer contour of the mounting seat 130. When the guide 110 is retracted relative to the housing 21, the eccentrically arranged guide 110 can limit the rotation of the mounting seat 130 around the guide 110.

[0057] The door lock 20 provided by the embodiments of the present application is used to be installed on a door body, which can be at least one of a door body of a room, a door body of an electronic device, and a door body of a traffic equipment. The door lock 20 can be a door lock 20 that is only locked or unlocked by inserting a key into a lock cylinder 22, or the door lock 20 can be a door lock 20 that is locked or unlocked by inserting a key into the lock cylinder 22 and integrated with other electronic devices, for example, the door lock 20 can be a smart door lock 20, which can be locked or unlocked by using an IC card, a digital password, fingerprint recognition, Bluetooth technology, mobile terminal wireless technology, or face recognition.

[0058] The door lock 20 includes a housing 21, the lock cylinder 22, and the lock cylinder cover structure 10 as described above. The housing 21 is used to be installed on the door body, and the housing 21 has a lock cylinder hole 20a. The lock cylinder 22 is arranged in the housing 21 corresponding to the lock cylinder hole 20a. The mounting seat 130 of the lock cylinder cover structure 10 covers the lock cylinder hole 20a, and the mounting seat 130 is detachably connected to the housing 21 to hide the lock cylinder 22. When the lock cylinder cover structure 10 is removed, the key can be inserted into the lock cylinder 22 to lock or unlock. At the same time, electronic devices such as a doorbell button 210 are installed in the accommodating cavity 10a of the lock cylinder cover structure 10, so that the lock cylinder cover structure 10 has multiple functions and is convenient for beautifying the appearance of the door lock 20.

[0059] The housing 21 also has a mounting groove 20b in communication with the lock cylinder hole 20a. The groove bottom wall surface of the mounting groove 20b is provided with the lock cylinder hole 20a. The groove bottom wall surface of the mounting groove 20b is also provided with a mounting hole. The first end 111 of the guide member 110 penetrates the mounting hole to extend into the internal space of the housing 21, and is connected with the limiting assembly 300 arranged in the internal space of the housing 21. The limiting assembly 300 is in contact with the inner wall surface of the housing 21 to prevent the guide member 110 from being separated from the housing 21.

[0060] In the position where the guide member 110 is withdrawn relative to the housing 21 of the door lock 20, part of the body 100 of the lock cylinder cover structure 10 is accommodated in the mounting groove 20b, and the first mounting surface 1301 of the mounting seat 130 covers the lock cylinder hole 20a. The body 100 abuts against the wall surface of the mounting groove 21 of the housing 21. Specifically, the groove side wall surface of the mounting groove 20b forms an abutting surface 211, and the first sealing ring 150 of the body 100 abuts against the abutting surface 211 of the housing 21 to seal the gap between the body 100 and the wall surface of the mounting groove 20b, so as to prevent water vapor from entering the lock cylinder hole 20a. At the same time, the body 100 is convenient for being actuated to make the guide member 110 extend out of the housing 21.

[0061] In an embodiment of the present application, the lock cylinder cover structure 10 can be installed on the housing 21 in the following manner:

[0062] First, the first sealing ring 150 is sleeved on the periphery of the seat body 131 of the mounting seat 130, the second sealing ring 160 is sleeved on the periphery of the first flange 132 of the mounting seat 130, the reinforcing plate 120 is integrally arranged with the guide 110, the surface of the reinforcing plate 120 is attached to the first mounting surface 1301 of the mounting seat 130, and the reinforcing plate 120 is fixed to the seat body 131.

[0063] Then, the circuit board 230 is fixed to the seat body 131, the conductive element 220 passes through the wire hole 1311 and the guide channel 101 in sequence, and is led out from the first end of the guide 110; then, the key body 141 of the key cap 140 is arranged opposite to the seat body 131, one end of the elastic element 530 is sleeved on the periphery of the first guide part and is fixed to the first guide part, the other end is sleeved on the periphery of the second guide part 520, the second guide part 520 passes through the avoiding opening 122 from the side where the first mounting surface 1301 is located and is screwed into the accommodation cavity of the first guide part, at the same time, the second flange 142 of the key cap 140 is sleeved on the periphery of the second sealing ring 160 and abuts against the second sealing ring 160.

[0064] Finally, the first end 111 of the guide 110 passes through the mounting hole of the shell 21, the limiting washer 310 is sleeved on the periphery of the first end 111 of the guide 110, and then the limiting nut 320 is mounted on the first end 111 of the guide 110, thereby completing the assembly.

[0065] In the drawings of the embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0066] The above is only a preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A door lock, wherein, The application relates to a lock core cover structure of a doorbell assembly. The doorbell assembly comprises a doorbell button. The lock core cover structure comprises a body, the body has a containing cavity inside, the doorbell button is arranged in the containing cavity, the body has a first mounting surface, the body is arranged to be detachably mounted on the shell, and the first mounting surface faces the lock core hole. The lock core cover structure further comprises a guide part protruding from the first mounting surface, one end of the guide part away from the first mounting surface is connected to the shell, so that the body can move relative to the shell, and the first mounting surface avoids or covers the lock core hole. The doorbell assembly further comprises a conductive element electrically connected to the doorbell button.

2. The door lock of claim 1, wherein, The guide part has a guide channel inside, the guide channel is connected to the containing cavity, and the conductive element passes through the guide channel and extends into the shell of the doorbell. The guide part extends along a preset direction perpendicular to the first mounting surface, so that the body extends or retracts relative to the shell along the preset direction, and when the body extends relative to the shell, the body rotates around the guide part.

3. The door latch of claim 1 wherein, The guide part is in the shape of an elliptical arc, when the guide part moves relative to the shell of the doorbell, the track of the body is in the shape of an elliptical arc, and when the body gradually extends relative to the shell, the body rotates relative to the shell, and the lock core hole is gradually exposed.

4. The door latch of claim 1, wherein The lock core cover structure further comprises a limiting assembly, one end of the guide part extends into the shell and is connected to the limiting assembly, so that the body moves back and forth relative to the shell between a first position and a second position.

5. The door latch of claim 1 wherein, In the first position, the body extends relative to the shell, the limiting assembly abuts against the shell, and the guide part is prevented from being separated from the shell. In the second position, the body retracts relative to the shell, and the limiting assembly is separated from the shell. The limiting assembly comprises a limiting washer and a limiting nut, the limiting washer is sleeved on the periphery of the guide part, and the limiting nut is threadedly connected to the guide part on the side of the limiting washer away from the first mounting surface. In the first position, the limiting washer abuts against the shell of the doorbell.

6. The door latch of claim 5 wherein, The guide part rotates around the axis relative to the shell, so that the body rotates back and forth between a first rotating position and a second rotating position. In the first rotating position, the first mounting surface covers the lock core hole, and in the second rotating position, the first mounting surface avoids the lock core hole.

7. The door latch of claim 1 wherein, The lock core cover structure further comprises a positioning assembly, the positioning assembly comprises a first positioning part, a second positioning part and a third positioning part, the first positioning part is mounted on the body, and the second positioning part and the third positioning part are mounted on the shell. In the first rotating position, the first positioning part and the second positioning part are magnetically adsorbed to position the body relative to the shell, and in the second rotating position, the first positioning part and the third positioning part are magnetically adsorbed to position the body relative to the shell. ​ 8. The door latch of claim 1 wherein, The body comprises a first sealing ring, a wall surface of the shell comprises an abutting surface, the first sealing ring is arranged to abut against the abutting surface when the first mounting surface covers the lock cylinder hole, so as to seal the gap between the body and the shell.

9. The door latch of claim 8, wherein, The body further comprises: a mounting seat having the first mounting surface, the first sealing ring being sleeved on the periphery of the mounting seat; a key cap movably mounted on the mounting seat, the key cap and the mounting seat defining the accommodating cavity therebetween; wherein the doorbell key is mounted on one of the key cap and the mounting seat, and the other of the mounting seat and the key cap acts on the doorbell key to trigger a doorbell signal when the mounting seat and the key cap are moved towards each other.

10. The door lock of claim 9, wherein the key cap comprises a key cap body and a first flange, the mounting seat comprises a seat body and a second flange, the seat body has oppositely arranged first and second mounting surfaces, the second flange is protruded from the second mounting surface, and the second flange extends into a space enclosed by the first flange, the key cap body is arranged opposite to the seat body, the first flange is protruded from a surface of the key cap body facing the seat body, and a surface of the key cap body away from the seat body is used for a user to touch, so that the key cap and the mounting seat can be moved towards each other to trigger the doorbell key when the user presses the key cap body; the body further comprises a second sealing ring, the second sealing ring is sleeved on the periphery of the second flange, and the second sealing ring abuts against an inner side surface of the first flange to seal the gap between the first flange and the second flange.

11. The door lock of claim 9, wherein the doorbell assembly further comprises a circuit board and at least one conductive element, the doorbell key is mounted on the circuit board, and the doorbell key is electrically connected to the circuit board, the conductive element is electrically connected to the circuit board; the door lock further comprises a lamp bead and a fingerprint sensor arranged in the accommodating cavity, the lamp bead and the fingerprint sensor are electrically connected to the circuit board, and the conductive element extends into the shell to be electrically connected to a power supply or a control system.

12. The door latch of claim 8, wherein, the body further comprises a reinforcing plate, the reinforcing plate is sleeved on the periphery of the guide and integrally arranged with the guide; a surface of the reinforcing plate is attached to the first mounting surface and mounted on the body; the first sealing ring extends to the reinforcing plate.

13. The door latch of claim 1 wherein, the body comprises a mounting seat having the first mounting surface, an outer contour of the mounting seat is circular, and the guide is arranged to deviate from a center of the circular outer contour of the mounting seat.

14. The door latch of claim 1 wherein, the shell further has a mounting groove in communication with the lock cylinder hole, a groove side wall surface of the mounting groove forms an abutting surface, when a part of the body is accommodated in the mounting groove, the first mounting surface covers the lock cylinder hole, and the body abuts against the abutting surface.

15. A door body, wherein, the door body comprises the door lock of any one of claims 1-14.

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