Unlocking device and door lock with the same

Abstract

The present application is applicable to the field of door lock technology, and provides an unlocking device and a door lock with the unlocking device. The unlocking device includes a transmission part, the output end of which is used to connect to the lock cylinder to drive the lock cylinder to unlock; the first end of the lock cylinder is provided with a main key, and the second end of the lock cylinder is used to insert a spare key. The main key forms the output end of the transmission part. The main key has an unlocking position in which it can be inserted into the lock cylinder and rotated inside the lock cylinder, and a avoidance position in which it can be pushed out from the lock cylinder by the spare key and separated from the lock cylinder. A reset member for switching the main key from the avoidance position to the unlocking position is provided at the end of the main key away from the lock cylinder. The unlocking device also includes a control part, which is electrically connected to the transmission part. This design of the present application not only facilitates unlocking using the control part, but also facilitates unlocking using the spare key in situations such as power outages, thereby avoiding unnecessary expenses.

Description

Technical Field

[0001] The present application belongs to the technical field of door locks, and more specifically, relates to an unlocking device and a door lock with the unlocking device. Background Art

[0002] With the rapid development of society, people are also pursuing a high-quality life. Most of the existing door locks are electronic door locks, which are generally unlocked by fingerprint or APP control. However, these electronic door locks are one-way door locks. If there is an abnormal situation such as power outage, users can only seek assistance from a locksmith company to unlock the door, which not only wastes time and energy, but also increases a considerable amount of expenses. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide an unlocking device and a door lock with the unlocking device, aiming to solve the technical problem in the prior art that an electronic door lock cannot be unlocked in the event of a power outage.

[0004] To achieve the above-mentioned purpose, according to one aspect of the present application, an unlocking device is provided, which includes a transmission part, the output end of which is used to connect to the lock cylinder drive to drive the lock cylinder to unlock; the first end of the lock cylinder is provided with a main key, and the second end of the lock cylinder is used to insert a spare key, the main key forms the output end of the transmission part, and the main key has an unlocking position in which it can be inserted into the lock cylinder and rotated in the lock cylinder, and an avoidance position in which it can be pushed out from the lock cylinder by the spare key and separated from the lock cylinder. A reset member is provided at the end of the main key away from the lock cylinder, and the reset member is used to switch the main key from the avoidance position to the unlocking position. The unlocking device also includes a control part, which is electrically connected to the transmission part to control the rotation of the main key in the lock cylinder.

[0005] Optionally, the transmission unit includes a first transmission assembly and a driving member, the output end of the driving member is drivingly connected to the input end of the first transmission assembly, and the control unit is electrically connected to the driving member. The first transmission assembly includes a transmission gear and a transmission ring gear, the transmission gear is drivingly connected to the output end of the driving member, the transmission gear forms the input end of the first transmission assembly, the transmission ring gear is used to be fixedly connected to the door body, the transmission gear is meshed with the inner ring of the transmission ring gear, and can rotate along the inner ring of the transmission ring gear; the unlocking device also includes a protective shell, the driving member is arranged in the protective shell and is connected to the protective shell; the protective shell is sleeved on the outer periphery of the transmission ring gear and is rotatably arranged on the outer periphery of the transmission ring gear; a limiting portion is provided at one end of the protective shell close to the lock core, the limiting portion is connected to the protective shell, and a placement groove is provided on the limiting portion, the first end of the master key is arranged in the placement groove, the second end of the master key can be inserted into the lock core, and the end of the reset member away from the master key is fixedly connected to the bottom of the placement groove.

[0006] Optionally, the transmission part further includes a second transmission assembly, which is a planetary gearbox, the input gear of the planetary gearbox is drivingly connected to the driving member, and the output shaft of the planetary gearbox is drivingly connected to the transmission gear.

[0007] Optionally, the first transmission assembly further includes a limiter, the limiter cover is provided on the transmission gear, and the output end of the second transmission assembly away from the end surface of the driving member abuts against the limiter to prevent the transmission gear from moving axially.

[0008] Optionally, the unlocking device also includes a connecting piece, which is arranged between the protective shell and the door body. The connecting piece is provided with an embedding groove for the lock core to be embedded. The outer surface of the connecting piece is provided with a first fixing bolt that passes through the connecting piece and abuts against the outer surface of the lock core. The connecting piece and the lock core are fixedly connected by the first fixing bolt.

[0009] Optionally, the unlocking device also includes a sliding member, which is arranged between the protective shell and the transmission ring gear. The sliding member is sleeved on the outer periphery of the transmission ring gear and fixedly connected to the transmission ring gear. The protective shell is sleeved on the outer periphery of the sliding member and is rotatably arranged on the sliding member.

[0010] Optionally, the protective shell includes a shell body and a base, the shell body is rotatably arranged on the outer periphery of the sliding part, the limiting part is fixedly connected to the end face of the shell body close to the lock core, the base is arranged at the end of the shell body away from the lock core, a snap-fit ​​block is provided on the base, and a snap-fit ​​groove is provided on the inner wall of the shell body, and the base and the shell body are connected by snapping the snap-fit ​​block and the snap-fit ​​groove.

[0011] Optionally, the control unit includes a PCB, the PCB is electrically connected to the transmission unit, a Bluetooth module is provided on the PCB, and the PCB is electrically connected to the driving component.

[0012] Optionally, the unlocking device further includes a power supply unit, which is electrically connected to the control unit and the driving component to supply power to the control unit and the driving component.

[0013] According to another aspect of the present application, a door lock is provided, which is installed on a door body. The door lock includes a lock core and the above-mentioned unlocking device. The unlocking device is installed on the side of the door body facing the indoor room. The first end of the lock core is set toward the indoor side, and the second end of the lock core is set toward the outdoor side.

[0014] The unlocking device provided by the present application has the following beneficial effects: compared with the prior art, before the lock cylinder is unlocked, the main key is in the unlocking position under the action of the reset member, that is, it is inserted into the lock cylinder. Under normal circumstances, the user issues an unlocking command to the control unit, which analyzes the unlocking command and feeds the analysis signal back to the transmission unit. After receiving the corresponding command, the transmission unit will cause the output end of the transmission unit, i.e., the main key, to rotate in the lock cylinder, thereby unlocking the lock. In abnormal circumstances such as power outages, the user can insert the spare key from the second end of the lock cylinder. With the insertion of the spare key, the main key will switch from the unlocking position to the avoidance position until the spare key is fully inserted into the lock cylinder. At this time, the main key will be completely disengaged from the lock cylinder, and the user can then use the spare key to unlock the lock. This design of the present application not only facilitates unlocking using the control unit, improving the convenience of the unlocking operation, but also facilitates unlocking using the spare key in abnormal circumstances such as power outages, avoiding unnecessary expenses and improving the practicality and convenience of the unlocking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 A schematic diagram of the structure of a door lock with an unlocking device connected to a door body according to an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the structure of a door lock with an unlocking device hidden behind the housing provided in an embodiment of the present application;

[0018] Figure 3 A cross-sectional view of a door lock with an unlocking device provided in an embodiment of the present application;

[0019] Figure 4 A schematic diagram of the structure of a door lock with an unlocking device provided in an embodiment of the present application;

[0020] Figure 5 A schematic diagram of a structure in which only one set of fixing components cooperates with a connecting member and a lock core, provided in an embodiment of the present application;

[0021] Figure 6 for Figure 5 A magnified schematic diagram of point A in the middle;

[0022] Figure 7 A schematic diagram of a structure in which only one set of connecting components cooperates with the shell body provided in an embodiment of the present application;

[0023] Figure 8 for Figure 7 Enlarged schematic diagram of point B in the middle.

[0024] The reference numerals used in the above drawings are as follows:

[0025] 100, transmission unit; 110, first transmission assembly; 111, transmission gear; 112, transmission ring gear; 113, limiter; 120, second transmission assembly; 130, driving member; 200, lock cylinder; 210, lock cylinder body; 220, lock core; 230, lock bolt; 300, master key; 400, control unit; 500, protective housing; 510, housing body; 520, base; 521, clamping block; 530, limiter; 53 1. Placement slot; 600, reset member; 700, connecting member; 710, first fixing bolt; 720, second fixing bolt; 800, sliding member; 900, power supply unit; 1000, door body; 1100, fixing assembly; 1110, fixing block; 1120, fixing spring; 1200, connecting assembly; 1210, sliding plate; 1220, limiting rod; 1230, limiting spring; 1240, reset rope; 1250, fixed pulley. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. The embodiments and features in the embodiments of this application may be combined with each other unless there is a conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0030] As described in the background technology, at present, with the rapid development of society, people are also pursuing a high-quality life. Most of the existing door locks are electronic door locks, which are generally unlocked by fingerprint or APP control. However, these electronic door locks are one-way door locks. If an abnormal situation such as a power outage occurs, the user can only seek assistance from a locksmith company to unlock the door, which not only wastes time and energy, but also increases a considerable amount of expenses.

[0031] Reference Figures 1 to 3 To address the above-mentioned issues, according to one aspect of the present application, an embodiment of the present application provides an unlocking device, which includes a transmission unit 100. The output end of the transmission unit 100 is used to drive and connect with the lock cylinder 200 to drive the lock cylinder 200 to unlock. A primary key 300 is provided at the first end of the lock cylinder 200, and a spare key is inserted at the second end of the lock cylinder 200. The primary key 300 forms the output end of the transmission unit 100. The primary key 300 has an unlocking position in which it can be inserted into the lock cylinder 200 and rotated within the lock cylinder 200, and a avoidance position in which it can be pushed outward from the lock cylinder 200 by the spare key and separated from the lock cylinder 200. A reset member 600 is provided at the end of the primary key 300 away from the lock cylinder 200. The reset member 600 is used to switch the primary key 300 from the avoidance position to the unlocking position. The unlocking device further includes a control unit 400 , which is electrically connected to the transmission unit 100 to control the master key 300 to rotate in the lock cylinder 200 .

[0032] In this embodiment, the lock cylinder 200 utilizes a Class C double-ended cylinder. However, in other embodiments, the lock cylinder 200 may utilize other cylinders capable of receiving keys at both ends for unlocking. The primary key 300 and the backup key have identical structures, and the reset element 600 is a reset spring. The control unit 400 is a controller capable of receiving external commands and outputting control signals, such as a PCB or single-chip microcomputer. This device is common knowledge to those skilled in the art and will not be described in detail here.

[0033] In a specific application, before the lock cylinder 200 is unlocked, the primary key 300 is in the unlock position under the action of the reset member 600, that is, it is inserted into the lock cylinder 200. Under normal circumstances, the user issues an unlock command to the control unit 400, which analyzes the unlock command and feeds the analysis signal back to the transmission unit 100. After receiving the corresponding command, the transmission unit 100 will cause the output end of the transmission unit 100, i.e., the primary key 300, to rotate within the lock cylinder 200, thereby unlocking the door. The above-mentioned steps of transmitting electrical signals are common knowledge to those skilled in the art. In abnormal circumstances such as power outages, the user can insert the spare key from the second end of the lock cylinder 200. As the spare key is inserted, the primary key 300 will switch from the unlock position to the avoidance position until the spare key is fully inserted into the lock cylinder 200. At this time, the primary key 300 will be completely separated from the lock cylinder 200, and the user can then use the spare key to unlock the door. This design of the present application not only facilitates unlocking using the control unit 400, improving the convenience of the unlocking operation, but also facilitates unlocking using a spare key in abnormal situations such as power outages, avoiding unnecessary expenses and improving the practicality and convenience of the unlocking device.

[0034] Reference Figures 1 to 3 The transmission unit 100 in this embodiment includes a first transmission assembly 110 and a driving member 130. The output end of the driving member 130 is drivingly connected to the input end of the first transmission assembly 110, and the control unit 400 is electrically connected to the driving member 130. The first transmission assembly 110 includes a transmission gear 111 and a transmission ring gear 112. The transmission gear 111 is drivingly connected to the output end of the driving member 130. The transmission gear 111 forms the input end of the first transmission assembly 110. The transmission ring gear 112 is used to be fixedly connected to the door body 1000. The transmission gear 111 meshes with the inner ring of the transmission ring gear 112 and can rotate along the inner ring of the transmission ring gear 112.

[0035] Reference Figure 3 The unlocking device also includes a protective shell 500, and the driving member 130 is arranged in the protective shell 500 and connected to the protective shell 500; the protective shell 500 is sleeved on the outer periphery of the transmission ring gear 112 and is rotatably arranged on the outer periphery of the transmission ring gear 112; a limiting portion 530 is provided at one end of the protective shell 500 close to the lock cylinder 200, and the limiting portion 530 is connected to the protective shell 500, and a placement groove 531 is opened on the limiting portion 530, and the first end of the master key 300 is arranged in the placement groove 531, and the second end of the master key 300 can be inserted into the lock cylinder 200, and the end of the reset member 600 away from the master key 300 is fixedly connected to the bottom of the placement groove 531.

[0036] In the embodiment of the present application, the driving member 130 is a driving motor. The driving member 130 is arranged inside the protective shell 500 and is fixedly connected to the protective shell 500. The driving member 130 can be fixedly connected to the inside of the protective shell 500 by bolting or welding. The end of the protective shell 500 close to the lock cylinder 200 is defined as the first end, and the first end of the protective shell 500 is open. The limiting part 530 is a combined plate composed of a circular plate with the same inner diameter as the protective shell 500 and a long strip plate extending toward the inside of the protective shell 500. The limiting part 530 and the inner side wall of the protective shell 500 are integrally formed and manufactured. The placement groove 531 is opened on the long strip plate, and the bottom of the placement groove 531 extends toward the inside of the protective shell 500; the reset member 600 is fixedly connected to the master key 300 at one end close to the master key 300; the set placement groove 531 provides placement space and connection space for the master key 300 and the reset member 600, which not only facilitates the switching of the master key 300 from the unlocking position to the avoidance position, but also facilitates the rotation of the main key 300 under the rotation of the protective shell 500, thereby achieving unlocking. In addition, there is an installation space between the limiting portion 530 and the first end surface of the protective shell 500 , and the transmission gear 111 and the transmission ring gear 112 are both arranged in the installation space, and the transmission ring gear 112 is coaxially arranged with the protective shell 500 .

[0037] In a specific application, before the lock cylinder 200 is unlocked, the master key 300 is inserted into the lock cylinder 200 under the action of the reset member 600; under normal circumstances, the user issues an unlocking command to the control unit 400, the control unit 400 analyzes the unlocking command, and feeds back the analysis signal to the driving member 130. After receiving the corresponding command, the driving member 130 starts to rotate, and the output end of the driving member 130 drives the transmission gear 111 to rotate. Since the transmission ring gear 112 is fixedly connected to the door body 1000, the transmission gear 111 will rotate along the inner ring of the transmission ring gear 112. Because the driver 130 is fixedly connected to the interior of the protective shell 500, the driver 130, which is driven by the transmission gear 111, will also drive the protective shell 500 to rotate along the axis of the transmission ring gear 112. At the same time, because the primary key 300 is fixedly connected to the bottom of the placement slot 531 via the reset member 600, and the placement slot 531 is formed on the limit portion 530, the limit portion 530 and the protective shell 500 are integrally formed. Therefore, as the protective shell 500 rotates, the second end of the primary key 300 will simultaneously rotate within the lock cylinder 200, thereby unlocking the door. In abnormal situations such as power outages, the user can insert the spare key from the second end of the lock cylinder 200. As the spare key is inserted, the primary key 300 will switch from the unlocking position to the avoidance position until the spare key is fully inserted into the lock cylinder 200. At this point, the main key will be completely disengaged from the lock cylinder 200, and the user can then use the spare key to unlock the door.

[0038] Reference Figure 2 and Figure 3 The transmission part 100 in this embodiment further includes a second transmission assembly 120 , which is a planetary gearbox. The input gear of the planetary gearbox is drivingly connected to the driving member 130 , and the output shaft of the planetary gearbox is drivingly connected to the transmission gear 111 .

[0039] In the embodiment of the present application, the planetary gearbox is disposed inside the protective shell 500 and is fixedly connected to the protective shell 500. The planetary gearbox can be fixedly connected to the protective shell 500 by bolting or welding. The input gear of the planetary gearbox is coaxial with and fixedly connected to the output shaft of the drive motor. The transmission gear 111 is sleeved on the outer periphery of the output shaft of the planetary gearbox and is coaxially arranged with the output shaft of the planetary gearbox. The outer surface of the output shaft of the planetary gearbox is provided with two limiting grooves, which are arranged opposite to each other. The lower surface of the transmission gear 111 abuts against the bottom of the limiting groove to connect the transmission gear 111 to the output shaft of the planetary gearbox. The planetary gearbox achieves the effects of smooth transmission, small size and low noise.

[0040] In other embodiments, the second transmission assembly 120 can also be a spur gearbox, which is disposed within and fixedly connected to the protective housing 500. The input gear of the spur gearbox is coaxial with and fixedly connected to the output shaft of the driving member 130. The transmission gear 111 is sleeved around the outer periphery of the output shaft of the planetary gearbox and is coaxially fixedly connected to the output shaft of the spur gearbox. The spur gearbox achieves smooth transmission, compact size, and low noise.

[0041] As an optional method in the embodiment of the present application, the driving member 130 adopts a hollow cup motor, and the output shaft of the hollow cup motor is drivingly connected to the input end of the second transmission assembly 120. The hollow cup motor has the advantages of small back-driving force and energy saving.

[0042] Reference Figure 3 In this embodiment, the first transmission assembly 110 also includes a limit member 113, which is covered on the transmission gear 111. The output end of the second transmission assembly 120 is away from the end face of the driving member 130 and abuts against the limit member 113 to prevent the transmission gear 111 from moving axially.

[0043] In the embodiment of the present application, the limiting member 113 is a limiting cover plate, which is fixedly connected to the limiting portion 530 by bolts; the provided limiting member 113 plays a limiting role, avoiding the possibility of the transmission gear 111 being separated from the output end of the second transmission assembly 120.

[0044] As an optional method in the embodiment of the present application, a retaining spring is provided between the transmission gear 111 and the limiting member 113, and the retaining spring is sleeved on the output end of the second transmission assembly 120. The retaining spring further prevents the transmission gear 111 from moving axially.

[0045] Reference Figure 1 、 Figure 3 and Figure 4 The unlocking device in this embodiment also includes a connecting member 700, which is arranged between the protective shell 500 and the door body 1000. The connecting member 700 is provided with an embedding groove for the lock core 200 to be embedded. The outer surface of the connecting member 700 is provided with a first fixing bolt 710 that passes through the connecting member 700 and abuts against the outer surface of the lock core 200. The connecting member 700 and the lock core 200 are fixedly connected by the first fixing bolt 710.

[0046] A second fixing bolt 720 is provided on the surface of the connecting member 700 away from the transmission ring gear 112 , passing through the connecting member 700 and screwed into the transmission ring gear 112 . The connecting member 700 and the transmission ring gear 112 are fixedly connected by the second fixing bolt 720 .

[0047] In the embodiment of the present application, the lock core 200 includes a lock core body 210, a lock core 220, and a lock bolt 230, wherein the lock core body 210 is fixedly connected to the door body 1000, and the lock core 220 and the lock bolt 230 are both rotatably arranged in the lock core body 210. The lock core 220 and the lock bolt 230 are driven and connected. The specific connection structure is common knowledge to those skilled in the art and will not be described in detail here. The embedding groove is provided on the end face of the connector 700 away from the protective shell 500. The length direction of the first fixing bolt 710 is perpendicular to the length direction of the lock core 200. The first fixing bolt 710 abuts against the outer surface of the lock core body 210. The first fixing bolt 710 is provided to connect the connector 700 to the lock core body 210. The length direction of the second fixing bolt 720 is parallel to the length direction of the lock core 200. The second fixing bolt 720 is set to fix the connecting member 700 with the transmission ring gear 112. At the same time, since the lock core body 210 is fixedly connected to the door body 1000, the transmission ring gear 112 will be fixedly connected to the door body 1000.

[0048] Reference Figure 5 and Figure 6As an optional method in the embodiment of the present application, the unlocking device also includes a fixing component 1100, which is arranged on the connecting member 700 and is used to connect the connecting member 700 with the lock core 200; the fixing component 1100 includes a fixing block 1110 and a fixing spring 1120, and an accommodating groove is provided on the groove wall of the embedded groove, and the length direction of the accommodating groove is perpendicular to the length direction of the lock core 200, and the first end of the fixing spring 1120 is fixedly connected to the groove bottom of the accommodating groove, and the fixing block 1110 is provided on the side of the second end of the fixing spring 1120 away from the groove bottom of the accommodating groove, and is fixedly connected to the fixing spring 1120, and a fixing groove for inserting the fixing block 1110 is provided on the lock core 200, and the end surface of the fixing block 1110 away from the fixing spring 1120 can be flush with the notch of the accommodating groove, or can be located in the fixing groove, and the length of the fixing block 1110 is greater than the groove depth of the fixing groove. When the lock core 200 is inserted into the insertion slot, the outer surface of the lock core 200 first compresses the fixing block 1110 into the receiving slot. After the receiving slot and the fixing slot are aligned, the fixing block 1110 moves into the fixing slot under the action of the fixing spring 1120, thereby connecting the lock core 200 to the connecting member 700. The provision of the fixing assembly 1100 further strengthens the connection strength between the connecting member 700 and the lock core 200.

[0049] In this optional embodiment, two groups of fixing components 1100 are provided, and the two groups of fixing components 1100 are arranged opposite to each other. Of course, in other examples, the fixing components 1100 can also be provided with three groups, four groups, or other larger numbers of groups. In addition, a slope is provided on the surface of the fixing block 1110 away from the protective shell 500, and the slope gradually tilts away from the connecting member 700 from the upper end of the fixing block 1110 to the lower end of the fixing block 1110, wherein the end where the bottom of the embedded groove is located is the lower end of the fixing block 1110. In the process of the lock core 200 compressing the fixing block 1110 into the receiving groove, the provided slope reduces the collision resistance between the lock core 200 and the fixing block 1110, so that the fixing block 1110 can be compressed into the receiving groove more smoothly.

[0050] Reference Figure 3 As an optional method in the embodiment of the present application, the unlocking device also includes a sliding member 800, which is arranged between the protective shell 500 and the transmission ring gear 112. The sliding member 800 is sleeved on the outer periphery of the transmission ring gear 112 and is fixedly connected to the transmission ring gear 112. The protective shell 500 is sleeved on the outer periphery of the sliding member 800 and is rotatably arranged on the sliding member 800.

[0051] In this optional embodiment, the sliding member 800 is a bearing. The sliding member 800 plays a supporting and transitional role, which not only reduces the rotational resistance of the protective shell 500, but also reduces the wear of the transmission gear ring 112, thereby extending the service life of the unlocking device.

[0052] Reference Figures 2 to 4 As an optional method in the embodiment of the present application, the protective shell 500 includes a shell body 510 and a base 520. The shell body 510 is rotatably arranged on the outer periphery of the sliding member 800. The limiting portion 530 is fixedly connected to the end face of the shell body 510 close to the lock cylinder 200. The base 520 is arranged at the end of the shell body 510 away from the lock cylinder 200. A snap-fit ​​block 521 is provided on the base 520. A snap-fit ​​groove is opened on the inner wall of the shell body 510. The base 520 and the shell body 510 are connected by snapping the snap-fit ​​block 521 and the snap-fit ​​groove.

[0053] In this alternative embodiment, multiple clamping blocks 521 are provided, and the multiple clamping blocks 521 are evenly fixedly connected to the end surface of the base 520 facing the shell body 510 along the circumference of the base 520. The provision of the clamping blocks 521 and the clamping grooves allows the base 520 and the shell body 510 to be detachably connected, which not only facilitates processing and manufacturing, but also facilitates maintenance and replacement of the control unit 400 and transmission unit 100 inside the protective shell 500. In addition, the shell body 510 is made of a transparent material, and the shell body 510 is roughly in the shape of a cylinder with open ends; the control part 400 is arranged on the end face of the base 520 facing the shell body 510, and is fixedly connected to the base 520; the transmission part 100 and the power supply part 900 are both arranged in the shell body 510, wherein the driving part 130, the second transmission assembly 120 and the power supply part 900 are arranged between the limiting part 530 and the shell body 510, and are all fixedly connected to the shell body 510, and the first transmission assembly 110 is arranged between the limiting part 530 and the open end face of the shell body 510 away from the base 520.

[0054] Reference Figure 7 and Figure 8In this optional embodiment, the unlocking device further includes a connecting assembly 1200, which is disposed on the base 520 and is used to connect the base 520 to the shell body 510. The connecting assembly 1200 includes a sliding plate 1210, a limiting rod 1220, a limiting spring 1230, and a reset rope 1240. The sliding plate 1210 is fixedly connected to the end surface of the base 520 facing the shell body 510. The length direction of the sliding plate 1210 is parallel to the length direction of the shell body 510. The inner side wall of the shell body 510 is provided with a sliding groove adapted to the sliding plate 1210. The length direction of the sliding groove is parallel to the length direction of the shell body 510. The sliding plate 1210 is disposed in the sliding groove and can slide within the sliding groove. The limiting rod 1220 can be slidably arranged on the side wall of the sliding plate 1210, and the length direction of the limiting rod 1220 is perpendicular to the length direction of the sliding plate 1210. A limiting groove for the limiting rod 1220 to be inserted is provided on the groove wall of the sliding groove, and a staying groove for the limiting rod 1220 to stay is provided on the side wall of the sliding plate 1210. The end face of the limiting rod 1220 away from the sliding plate 1210 can be flush with the groove opening of the staying groove or be located in the limiting groove. The length of the limiting rod 1220 is greater than the groove depth of the limiting groove. The first end of the limit spring 1230 is fixedly connected to the bottom of the retention groove. The end surface of the limit rod 1220 near the sliding plate 1210 is fixedly connected to the second end of the limit spring 1230. The first end of the reset rope 1240 is fixedly connected to the end surface of the limit rod 1220 near the sliding plate 1210, thereby driving the limit rod 1220 to slide within the retention groove and the limit groove. The second end of the reset rope 1240 extends to the outside of the protective shell 500. The sliding plate 1210 defines an extension hole for the second end of the reset rope 1240 to extend outward. In addition, the connecting assembly 1200 also includes a fixed pulley 1250, which is rotatably disposed within the sliding plate 1210. The reset rope 1240 is overlapped on the fixed pulley 1250. The sliding plate 1210 defines a placement space for the fixed pulley 1250, which is connected to the retention groove and the extension hole.

[0055] In a specific application, when the base 520 is connected to the shell body 510, the sliding plate 1210 is first aligned with the sliding groove, and the base 520 is driven to move toward the shell body 510, so that the sliding plate 1210 can slide in the sliding groove. At this time, the reset rope 1240 is pulled in a direction away from the sliding plate 1210 so that the end surface of the limit rod 1220 away from the sliding plate 1210 is aligned with the notch of the stop groove, that is, the limit rod 1220 is stopped in the stop groove. After the stop groove is aligned with the limit groove, the reset rope 1240 is released, and the limit rod 1220 is inserted into the limit groove under the action of the limit spring 1230, thereby achieving a detachable connection between the base 520 and the shell body 510. When the base 520 is separated from the shell body 510, the reset rope 1240 is pulled in a direction away from the sliding plate 1210 so that the limit rod 1220 is disengaged from the limit groove, thereby achieving separation of the base 520 from the shell body 510. The provided connection assembly 1200 strengthens the connection strength between the base 520 and the shell body 510 .

[0056] In addition, in this optional method, there are two limit rods 1220, limit springs 1230, reset ropes 1240 and fixed pulleys 1250, and they are all arranged opposite to each other. Of course, there are also two groups of limit grooves, stop grooves, placement spaces and extension holes, and they are arranged opposite to each other.

[0057] Reference Figure 3 In this optional embodiment, the control unit 400 includes a PCB, which is electrically connected to the transmission unit 100 and has a Bluetooth module disposed thereon. The PCB is electrically connected to the driving member 130 .

[0058] When a user needs to unlock the door, they send an unlock command to the Bluetooth module on the PCB through an app on a mobile phone or other terminal. The Bluetooth module feeds back a corresponding electrical signal to the PCB. The PCB analyzes the electrical signal and feeds back the corresponding unlock signal to the driver 130. Upon receiving the signal, the driver 130 starts and rotates the input gear of the planetary gearbox, thereby rotating the transmission gear 111. Under the drive of the transmission gear 111, the master key 300 rotates within the lock cylinder 200. The above steps are all common knowledge to those skilled in the art. In addition, the control unit 400 is arranged on the side of the driver 130 away from the main body.

[0059] Reference Figure 3 The unlocking device in this embodiment further includes a power supply unit 900 , which is electrically connected to the control unit 400 and the driving member 130 to supply power to the control unit 400 and the driving member 130 .

[0060] In an embodiment of the present application, the power supply unit 900 uses a rechargeable lithium battery, and the power supply unit 900 is arranged on one side of the transmission unit 100. The electrical connection method between the power supply unit 900 and the control unit 400 and the driving member 130 is common knowledge among technicians in this field and will not be described in detail here.

[0061] Reference Figures 1 to 4 According to another aspect of the present application, an embodiment of the present application further provides a door lock, which is installed on a door body 1000. The door lock includes a lock core 200 and the above-mentioned unlocking device. The unlocking device is installed on the side of the door body 1000 facing the indoor room. The first end of the lock core 200 is set toward the indoor side, and the second end of the lock core 200 is set toward the outdoor side.

[0062] In an embodiment of the present application, the lock core 200 includes a lock core body 210, a lock core 220, and a lock bolt 230. The lock core body 210 is fixedly installed in the door body 1000, and the lock core 220 and the lock bolt 230 are driven and connected. The lock core 220 and the lock bolt 230 are both rotatably set on the lock core body 210; the main key 300 and the spare key can be driven and connected to the lock core 220 respectively to drive the lock core 200 to unlock. The lock core body 210, the lock core 220, and the lock bolt 230 are all common knowledge to those skilled in the art and will not be described in detail here. The first end of the lock core body 210 is set in the embedded groove. The main key 300 and the spare key can both be inserted into the lock core 220 to unlock.

[0063] When the user needs to unlock the door, the control unit 400 issues an unlock command to the driver 130. The driver 130 rotates the input gear of the planetary gearbox. The output shaft of the planetary gearbox then drives the transmission gear 111 to rotate along the inner ring of the transmission ring gear 112, thereby driving the primary key 300 to rotate within the lock cylinder 200, thereby unlocking the door. The unlocking device is installed on the side of the door body 1000 facing indoors. This design greatly improves the security of the door lock. The second end of the lock cylinder 200 is positioned toward the outside of the door, allowing the spare key to be inserted into the lock cylinder 200 to unlock the door.

[0064] Furthermore, since coreless motors have the advantage of low back-driving force, the coreless motor design of driver 130 facilitates manual rotation of protective housing 500 by the user, thereby rotating master key 300 within lock cylinder 200 to unlock the door. In a specific application, when the user is indoors, they can either manually rotate protective housing 500 to unlock the door, or issue a start command to driver 130 via control unit 400.

[0065] In summary, the unlocking device and door lock equipped with the unlocking device provided in this embodiment have at least the following beneficial technical effects: Before the lock cylinder 200 is unlocked, the primary key 300 is in the unlocking position under the action of the reset member 600, i.e., inserted into the lock cylinder 200. Under normal circumstances, the user issues an unlocking command to the control unit 400, which analyzes the unlocking command and feeds the analysis signal back to the transmission unit 100. After receiving the corresponding command, the transmission unit 100 causes the output end of the transmission unit 100, i.e., the primary key 300, to rotate within the lock cylinder 200, thereby unlocking the door. The above-mentioned steps of transmitting electrical signals are common knowledge to those skilled in the art. In abnormal circumstances such as power outages, the user can insert the spare key from the second end of the lock cylinder 200. As the spare key is inserted, the primary key 300 switches from the unlocking position to the avoidance position until the spare key is fully inserted into the lock cylinder 200. At this point, the primary key 300 is completely separated from the lock cylinder 200, and the user can then use the spare key to unlock the door. This design of the present application not only facilitates unlocking using the control unit 400, improving the convenience of the unlocking operation, but also facilitates unlocking using a spare key in abnormal situations such as power outages, avoiding unnecessary expenses and improving the practicality and convenience of the unlocking device.

[0066] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An unlocking device, characterized in that: The unlocking device comprises a transmission part (100), wherein an output end of the transmission part (100) is used for driving connection with a lock core (200) to drive the lock core (200) to unlock; A primary key (300) is provided at a first end of the lock core (200), a spare key is inserted into a second end of the lock core (200), the primary key (300) forms an output end of the transmission part (100), and the primary key (300) has an unlocking position in which it can be inserted into the lock core (200) and rotated in the lock core (200), and an escape position in which it can be pushed outward from the lock core (200) by the spare key and separated from the lock core (200); A reset member (600) is provided at one end of the master key (300) away from the lock core (200), and the reset member (600) is used to switch the master key (300) from the avoidance position to the unlocking position; The unlocking device further comprises a control unit (400), wherein the control unit (400) is electrically connected to the transmission unit (100) to control the master key (300) to rotate in the lock core (200).

2. The unlocking device according to claim 1, characterized in that: The transmission part (100) includes a first transmission assembly (110) and a driving member (130), an output end of the driving member (130) is drivingly connected to an input end of the first transmission assembly (110), and the control part (400) is electrically connected to the driving member (130); The first transmission assembly (110) includes a transmission gear (111) and a transmission ring gear (112), wherein the transmission gear (111) is drivingly connected to the output end of the driving member (130), and the transmission gear (111) forms the input end of the first transmission assembly (110). The transmission ring gear (112) is used for being fixedly connected to the door body (1000), and the transmission gear (111) is meshed with the inner ring of the transmission ring gear (112) and can rotate along the inner ring of the transmission ring gear (112); The unlocking device further comprises a protective shell (500), wherein the driving member (130) is arranged in the protective shell (500) and is connected to the protective shell (500); the protective shell (500) is sleeved on the outer periphery of the transmission gear ring (112) and is rotatably arranged on the outer periphery of the transmission gear ring (112); a limiting portion (530) is provided at one end of the protective shell (500) close to the lock core (200), wherein the limiting portion (530) is connected to the protective shell (500), and a placement groove (531) is provided on the limiting portion (530), wherein the first end of the master key (300) is arranged in the placement groove (531), and the second end of the master key (300) can be inserted into the lock core (200), and the end of the reset member (600) away from the master key (300) is fixedly connected to the bottom of the placement groove (531).

3. The unlocking device according to claim 2, characterized in that: The transmission part (100) further includes a second transmission assembly (120), wherein the second transmission assembly (120) is a planetary gearbox, wherein an input gear of the planetary gearbox is drivingly connected to the driving member (130), and an output shaft of the planetary gearbox is drivingly connected to the transmission gear (111).

4. The unlocking device according to claim 3, characterized in that: The first transmission assembly (110) further includes a limiting member (113), the limiting member (113) being arranged on the transmission gear (111), and the output end of the second transmission assembly (120) away from the end surface of the driving member (130) abuts against the limiting member (113) to prevent the transmission gear (111) from moving in the axial direction.

5. The unlocking device according to claim 2, characterized in that: The unlocking device further comprises a connecting member (700), the connecting member (700) being arranged between the protective shell (500) and the door body (1000), the connecting member (700) being provided with an embedding groove for embedding the lock core (200), the outer surface of the connecting member (700) being provided with a first fixing bolt (710) passing through the connecting member (700) and abutting against the outer surface of the lock core (200), the connecting member (700) and the lock core (200) being fixedly connected by the first fixing bolt (710); A second fixing bolt (720) is provided on a surface of the connecting member (700) away from the transmission gear ring (112), passing through the connecting member (700) and screwed into the transmission gear ring (112); the connecting member (700) and the transmission gear ring (112) are fixedly connected via the second fixing bolt (720).

6. The unlocking device according to claim 2, characterized in that: The unlocking device further includes a sliding member (800), wherein the sliding member (800) is arranged between the protective shell (500) and the transmission gear ring (112), the sliding member (800) is sleeved on the outer periphery of the transmission gear ring (112) and is fixedly connected to the transmission gear ring (112), and the protective shell (500) is sleeved on the outer periphery of the sliding member (800) and is rotatably arranged on the sliding member (800).

7. The unlocking device according to claim 6, characterized in that: The protective shell (500) includes a shell body (510) and a base (520), the shell body (510) is rotatably arranged on the outer periphery of the sliding member (800), the limiting portion (530) is fixedly connected to the end surface of the shell body (510) close to the lock core (200), the base (520) is arranged at one end of the shell body (510) away from the lock core (200), a clamping block (521) is provided on the base (520), and a clamping groove is opened on the inner wall of the shell body (510), and the base (520) and the shell body (510) are connected by clamping the clamping block (521) and the clamping groove.

8. The unlocking device according to claim 1, characterized in that: The control unit (400) comprises a PCB, the PCB is electrically connected to the transmission unit (100), and a Bluetooth module is provided on the PCB.

9. The unlocking device according to claim 2, characterized in that: The unlocking device further comprises a power supply unit (900), wherein the power supply unit (900) is connected to the control unit (400) and the driving member (130) to supply power to the control unit (400) and the driving member (130).

10. A door lock, characterized in that: The door lock is installed on the door body (1000), and the door lock includes a lock core (200) and an unlocking device according to any one of claims 1 to 9. The unlocking device is installed on the side of the door body (1000) facing the indoor room, the first end of the lock core (200) is set towards the indoor side, and the second end of the lock core (200) is set towards the outdoor side.

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