Combined lock

Abstract

The utility model provides a combination lock, the combination lock comprises a control unit as well as a dead lock and an inclined tongue lock which are arranged in a split manner, the dead lock comprises a motor, a first transmission mechanism and a first lock tongue, and the motor is used for responding to a driving control signal to drive the first transmission mechanism to drive the first lock tongue to stretch out and draw back; the latch bolt lock is provided with a handle, a transmission shaft, a second spring bolt and a rotation sensing module, the handle is arranged to rotate to drive the transmission shaft to link the second spring bolt to stretch out and draw back, the rotation sensing module is used for detecting rotation of the transmission shaft to generate an electric signal, and the control unit receives the electric signal and controls the second spring bolt to stretch out and draw back. And outputting the driving control signal to the motor based on the electric signal. In the process that a user holds a handle of the latch bolt lock and rotates the handle, rotation of the handle is detected through the rotation sensing module to generate an electric signal, and the control unit controls the deadlock to be unlocked based on the electric signal, so that the deadlock is synchronously and automatically unlocked in the process of unlocking the latch bolt lock.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology, and specifically relates to a combination lock. Background Technology

[0002] In today's residential door lock market, the combination of a deadbolt and a latch lock dominates the market. The original design intention of this combination lock was to enhance door security through a dual locking mechanism, providing more reliable protection for the home environment. However, in actual daily use, this seemingly secure combination has brought many inconveniences to users, seriously affecting the ease of opening the door and the user experience.

[0003] When users need to unlock the door to leave, they must go through a series of complex and cumbersome procedures. First, users need to use a knob, handle, or key to unlock the lock individually. This step seems simple, but in reality, it requires a high degree of precision from the user. In actual scenarios, factors such as the rotation angle of the knob, the pressure applied to the handle, or the insertion depth of the key can all lead to unlocking failure. For example, the knob needs to be turned precisely to a specific angle to trigger the unlocking mechanism; if the user turns it too little or too much, it will not unlock successfully. When pressing the handle, insufficient force may not trigger the retraction of the internal bolt, while excessive force may damage the handle or the lock body. When inserting the key, if it does not fully engage with the lock cylinder's teeth, it will also prevent the key from turning. If the operation is incorrect, the user needs to try repeatedly, which not only wastes time but may also cause anxiety and frustration when the user is in a hurry to leave.

[0004] After unlocking the deadbolt, the user cannot open the door directly; they must separately turn the handle of the latch lock to unlock it. The entire opening process involves multiple operations, is complex, and time-consuming. For modern people with fast-paced lives and precious time, this method is clearly inconvenient, especially when they urgently need to leave. The existing combination lock opening method significantly impacts user efficiency and reduces the user experience. Furthermore, in emergencies such as fires or earthquakes, this complex opening method may delay escape time, posing a potential threat to the user's life. In addition, frequent and complex operations can easily lead to user frustration and affect their daily mood.

[0005] Therefore, existing combination locks that use a deadbolt and a slanted latch have significant shortcomings in terms of ease of opening, and there is an urgent need for a new type of door lock technology that can simplify the opening operation and improve the opening efficiency to solve the above problems. Utility Model Content

[0006] The primary objective of this invention is to provide a combination lock that solves at least one of the aforementioned problems.

[0007] To achieve the various objectives of this utility model, the following technical solution is adopted:

[0008] To achieve one of the objectives of this utility model, a combination lock is provided, comprising a control unit and a separately configured deadbolt and latch lock. The deadbolt includes a motor, a first transmission mechanism, and a first latch. The motor is used to respond to a drive control signal and drive the first transmission mechanism to extend and retract the first latch. The latch lock is provided with a handle, a drive shaft, a second latch, and a rotation sensing module. The handle is configured to rotate to drive the drive shaft to extend and retract the second latch in conjunction with the rotation. The rotation sensing module is used to detect the rotation of the drive shaft to generate an electrical signal. The control unit receives the electrical signal and outputs the drive control signal to the motor based on the electrical signal.

[0009] In one embodiment, the rotation sensing module includes a first magnet, a first Hall sensor or a reed switch sensor, the first magnet being disposed on the drive shaft, and the first Hall sensor or reed switch sensor being disposed close to the rotation path of the first magnet.

[0010] In one embodiment, the rotation sensing module includes a first photoelectric sensor and a light-shielding plate, the light-shielding plate being disposed on the drive shaft, and the first photoelectric sensor being disposed on the rotation path of the light-shielding plate.

[0011] In one embodiment, the rotation sensing module includes an encoder that is mounted on the drive shaft.

[0012] In one embodiment, the rotation sensing module includes a micro switch and an actuating part disposed on the drive shaft, wherein the micro switch is disposed on the rotation path of the actuating part.

[0013] In one embodiment, the control unit is installed in the deadbolt, the deadbolt is further provided with a first communication module electrically connected to the control unit, and the latch lock is further provided with a second communication module electrically connected to the rotation sensing module. The first communication module and the second communication module are wirelessly connected.

[0014] In one embodiment, the control unit is installed in the lock, and the control unit is electrically connected to the rotation sensing module via a cable.

[0015] In one embodiment, the first transmission mechanism includes a lock cylinder lever, a rotating shaft, a gear disc, a linkage block, and a second photoelectric sensor. The lock cylinder lever is connected to the first lock tongue and the rotating shaft respectively. The linkage block is fixed on the rotating shaft. The gear disc is sleeved on the rotating shaft. The gear disc is provided with a transmission block and a plurality of light-blocking plates. The transmission block and the linkage block are arranged on the same rotation path. The second photoelectric sensor is arranged on the rotation path of the light-blocking plates. The plurality of light-blocking plates are arranged sequentially at intervals along the circumference of the gear disc. The motor is connected to the gear disc in a transmission connection.

[0016] In one embodiment, the transmission block extends along the circumferential direction of the gear disk, the gear disk is provided with a stroke groove, the stroke groove and the transmission block are arranged sequentially along the same extension path, and the two end faces of the transmission block form the two groove walls of the stroke groove, and the linkage block is inserted into the stroke groove.

[0017] In one embodiment, the transmission block and the stroke groove are both arranged across 180°, and the gear disk is provided with four light-blocking plates, which are evenly spaced in the circumferential direction of the gear disk.

[0018] In one embodiment, the deadbolt further includes a second Hall sensor and a second magnet, the second magnet being disposed on the rotating shaft and the second Hall sensor being disposed on the rotation path of the second magnet.

[0019] In one embodiment, the tongue lock further includes a housing and a reset mechanism. The drive shaft passes through the housing to be inserted into the handle. The reset mechanism is installed inside the housing and includes a reset torsion spring and a reset block. The reset block is fixed on the drive shaft, and one end of the reset torsion spring is connected to the reset block.

[0020] Compared with the prior art, this utility model has many advantages, including but not limited to:

[0021] Existing combination locks require users to first unlock the deadbolt, then the latch, and finally pull the handle to open the door, involving multiple steps. This invention, however, uses a rotary sensing module and a control unit to synchronize the unlocking of the deadbolt and latch. The user simply needs to hold and turn the latch handle. During this process, the rotary sensing module detects the rotation of the drive shaft and generates a first electrical signal. Upon receiving this signal, the control unit outputs a drive control signal to the deadbolt's motor, causing the motor to unlock the deadbolt's latch. This means that while the user is unlocking the latch, the deadbolt is automatically unlocked simultaneously, eliminating the need for separate unlocking operations and simplifying the multi-step unlocking process into a single step, significantly reducing the user's steps.

[0022] For most users, especially the elderly, children, or those with mobility issues, this simplified unlocking method is more user-friendly and convenient. For example, the elderly may experience memory loss and make mistakes in multi-step operations, leading to difficulty opening the door. This new invention, through automated synchronous unlocking, reduces the complexity of the operation and minimizes the risk of the elderly being unable to open the door due to operational errors. For children, due to limitations in height and strength, they may find it difficult to complete certain unlocking steps requiring significant grip strength or precise movements. This new invention, however, requires only a simple turn of the handle to unlock the entire combination lock, making it more suitable for children's operational abilities and habits. Furthermore, for those with mobility issues, reducing the number of steps means reducing the difficulty and physical exertion required to open the door, allowing them to use the combination lock more easily and greatly improving the user experience. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0024] Figure 1 This is a schematic diagram of the reverse side of a door when the combination lock, according to one embodiment of the present invention, is installed on the door.

[0025] Figure 2 This is a circuit block diagram of a combination lock according to an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the reverse side of a door when the combination lock, representing another embodiment of the present invention, is installed on the door.

[0027] Figure 4 This is a circuit block diagram of a combination lock according to another embodiment of the present invention.

[0028] Figure 5 This is a cross-sectional view of a combination lock installed on a door according to an embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the assembly of the rotation sensing module and the drive shaft of the combination lock according to the first embodiment of this utility model.

[0030] Figure 7 This is a schematic diagram of the assembly of the rotation sensing module and the drive shaft of the combination lock according to the second embodiment of the present invention.

[0031] Figure 8 This is a schematic diagram of the assembly of the rotation sensing module and the drive shaft of the combination lock according to the third embodiment of the present invention.

[0032] Figure 9This is a schematic diagram of the assembly of the rotation sensing module and the transmission shaft of the combination lock according to the fourth embodiment of the present invention.

[0033] Figure 10 This is a first-view structural schematic diagram of the deadbolt of the combination lock, which is a typical embodiment of the present utility model.

[0034] Figure 11 This is a structural schematic diagram of the deadbolt of the combination lock according to a typical embodiment of the present utility model from a second perspective.

[0035] Figure 12 This is a schematic diagram of the lock cylinder lever of the combination lock, which is a typical embodiment of the present utility model.

[0036] Figure 13 This is an exploded schematic diagram of the deadbolt of the combination lock, which is a typical embodiment of the present invention.

[0037] Figure 14 This is a schematic diagram of the toothed disc of the deadbolt of the combination lock, which is a typical embodiment of the present utility model.

[0038] Figure 15 This is a schematic diagram of the first partial structure of the deadbolt of the combination lock according to a typical embodiment of the present utility model.

[0039] Figure 16 This is a schematic diagram of the second partial structure of the deadbolt of the combination lock according to a typical embodiment of the present utility model.

[0040] Figure 17 This is a cross-sectional schematic diagram of the deadbolt of the combination lock according to a typical embodiment of the present utility model.

[0041] Figure 18 This is a plan view of the assembly of the locking shaft, linkage ring, and photoelectric sensor of the combination lock in a typical embodiment of the present utility model.

[0042] Figure 19 This is a plan view of the toothed disc of the deadbolt of the combination lock, which is a typical embodiment of the present utility model.

[0043] Figure 20 This is a transmission diagram of the combination lock in the locked reset state according to a typical embodiment of the present invention.

[0044] Figure 21 This is a schematic diagram of the transmission of the combination lock in the unlocked state, which is a typical embodiment of the present utility model.

[0045] Figure 22 This is a schematic diagram of the transmission of the combination lock in the unlocked and reset state, which is a typical embodiment of the present utility model.

[0046] Figure 23This is a schematic diagram of the transmission of the combination lock in the locked state, which is a typical embodiment of the present utility model. Detailed Implementation

[0047] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model and should not be construed as limiting this utility model.

[0048] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, nor does it exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0049] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0050] This utility model provides a combination lock. When a user holds the handle of the latch lock and rotates the handle, a rotation sensing module detects the rotation of the handle and generates an electrical signal. The control unit controls the deadbolt to unlock based on the electrical signal, so that the deadbolt is automatically unlocked simultaneously while the user is unlocking the latch lock, thereby improving the unlocking efficiency of the combination lock and enhancing the user experience.

[0051] In a typical embodiment of this utility model, combined with Figure 1 and Figure 2 , or, combined Figure 3 and Figure 4The combination lock 300 includes a control unit 310, a deadbolt 100, and a latch bolt 200, with the deadbolt 100 and the latch bolt 200 being separately configured. The combination lock 300 is installed on a door body 400, which is installed on a door frame. The door frame has two latch grooves, namely a first latch groove and a second latch groove. The first latch groove corresponds to the deadbolt 100, and the second latch groove corresponds to the latch bolt 200.

[0052] The deadbolt 100 includes a motor 115, a transmission mechanism (referred to as the first transmission mechanism), and a latch (referred to as the first latch 160). The motor 115, the first transmission mechanism, and the first latch 160 are sequentially connected. The motor 115 drives the first latch 160 to extend into the first latch groove via the first transmission mechanism to lock the deadbolt 100. Alternatively, the motor 115 drives the first latch 160 to retract from the first latch groove via the first transmission mechanism to unlock the deadbolt 100. The control unit 310 is used to control the operation of the motor 115.

[0053] Combination Figure 5 The latch lock 200 includes a handle 210, a rotation sensing module 260, a transmission mechanism (referred to as the second transmission mechanism), and a latch (referred to as the second latch 230). The handle 210, the second transmission mechanism, and the second latch 230 are sequentially connected. The handle 210, via the second transmission mechanism, drives the second latch 230 into the second latch groove to lock the latch lock 200; alternatively, the handle 210, via the second transmission mechanism, drives the second latch 230 out of the second latch groove to unlock the latch lock 200. The rotation sensing module 260 is electrically connected to the control unit 310.

[0054] Specifically, the second transmission mechanism includes a transmission shaft 240, one end of which is inserted into the handle 210. The transmission shaft 240 is connected to the second latch 230, and the second latch 230 is arranged approximately perpendicular to the transmission shaft 240. When the handle 210 is rotated, the handle 210 drives the transmission shaft 240 to rotate simultaneously. The transmission shaft 240 drives the second latch 230 to move linearly relative to the second latch groove, causing the second latch 230 to extend into or retract from the second latch groove, thereby locking or unlocking the latch lock 200.

[0055] The latch lock 200 also includes a housing 270, a drive shaft 240 extending through the housing 270, a handle 210 disposed outside the housing 270, and the drive shaft 240 inserted into the handle 210, such that the handle 210 is pivotally mounted on the housing 270. A rotation sensing module 260 is installed inside the housing 270. Because a portion of the drive shaft 240 is located within the housing 270, the rotation sensing module 260 can detect the rotation of the drive shaft 240 within the housing 270 and generate an electrical signal.

[0056] When the handle 210 is in the initial position, the second latch 230 of the latch lock 200 extends into the second latch 230 slot, thus locking the latch lock 200. When the handle 210 is in the unlocked position, the second latch 230 of the latch lock 200 retracts from the second latch 230 slot, thus unlocking the latch lock 200.

[0057] In a typical embodiment of this utility model, the latch lock 200 further includes a reset mechanism, which is installed in the housing 270 of the latch lock 200. The reset mechanism includes a reset torsion spring 271 and a reset block 272. The housing 270 is provided with a reset groove 273. The reset torsion spring 271 is installed in the reset groove 273. The reset block 272 is fixed on the transmission shaft 240. One end of the reset torsion spring 271 is connected to the bottom of the reset groove 273, and the other end of the reset torsion spring 271 is connected to the reset block 272.

[0058] When the latch lock 200 is in the locked state, the reset torsion spring 271 is in its initial state, and in this initial state, the reset torsion spring 271 does not store elastic tension or elastic recoil force. When the latch lock 200 is in the unlocked state, the drive shaft 240 pulls the reset torsion spring 271 to extend, causing the reset torsion spring 271 to be in a stretched state, and the reset torsion spring 271 accumulates elastic recoil force. When the user operates the handle 210 to unlock the latch lock 200, and the user no longer applies force to the handle 210, under the action of the elastic recoil force of the reset torsion spring 271, the reset torsion spring 271 returns from the unlocked state to the initial state. At the same time, the reset torsion spring 271 drives the drive shaft 240 to rotate, and the drive shaft 240 synchronously drives the handle 210 and the second latch 230 to move, so that the handle 210 returns from the unlocked position to the initial position, and the second latch 230 also returns from the unlocked state to the locked state. In other words, by setting the reset mechanism, the latch lock 200, which is in the unlocked state, can automatically return to the locked state.

[0059] When a user unlocks the combination lock 300, the user holds the handle 210 and applies force to it, causing the handle 210 to rotate. The handle 210 drives the transmission shaft 240 to rotate synchronously. The rotation sensing module 260 detects the rotation of the transmission shaft 240 and generates an electrical signal. The rotation sensing module 260 outputs the electrical signal to the control unit 310. The control unit 310 generates a first drive control signal based on the electrical signal and outputs the first drive control signal to the motor 115 of the deadbolt 100 to control the motor 115 to work. The motor 115 then controls the movement of the first latch 160, thereby unlocking the deadbolt 100.

[0060] Therefore, when the user turns the handle 210 to unlock the latch lock 200, the rotation sensing module 260 detects the rotation of the drive shaft 240 and generates a corresponding electrical signal. The control unit 310 generates a first drive control signal based on the received electrical signal. The control unit 310 controls the motor 115 to operate through the first drive control signal, so that the motor 115 drives the first latch 160 to operate, thereby unlocking the deadbolt 100. It can be understood that when the user turns the handle 210 to unlock the latch lock 200, the deadbolt 100 is also unlocked simultaneously, allowing the user to unlock in one step without having to unlock the deadbolt 100 and the latch lock 200 separately. This reduces the unlocking steps of the combination lock 300, improves unlocking efficiency, and enhances the user experience.

[0061] In the first embodiment, combined with Figure 6 The rotation sensing module 260 includes a Hall sensor (referred to as the first Hall sensor 261) and a magnet (referred to as the first magnet 262). The first magnet 262 is disposed on the transmission shaft 240. When the handle 210 drives the transmission shaft 240 to rotate, the transmission shaft 240 will drive the first magnet 262 to rotate synchronously.

[0062] When the latch lock 200 is in the unlocked state, the first magnet 262 is in the unlocked position; when the latch lock 200 is in the locked state, the first magnet 262 is in the locked position. The first Hall sensor 261 is disposed on the rotation path of the first magnet 262, and the first Hall sensor 261 is disposed close to the locked position.

[0063] When the handle 210 synchronously drives the first magnet 262 to rotate via the transmission shaft 240, causing the first magnet 262 to leave the locked position, the first Hall sensor 261 can no longer sense the first magnet 262, thereby generating a corresponding electrical signal (referred to as the first electrical signal). The first Hall sensor 261 outputs the first electrical signal to the control unit 310. Based on the first electrical signal, the control unit 310 determines that the latch lock 200 is unlocking. The control unit 310 generates a first drive control signal based on the first electrical signal, and controls the motor to work through the first drive control signal, controlling the deadbolt lock 100 to unlock synchronously, improving unlocking efficiency and enhancing the user experience.

[0064] When the reset mechanism synchronously drives the first magnet 262 to rotate via the transmission shaft 240, causing the first magnet 262 to return to the locked position, the first Hall sensor 261 senses the first magnet 262 and generates a corresponding electrical signal (referred to as the second electrical signal). The first Hall sensor 261 outputs the second electrical signal to the control unit 310, and the control unit 310 determines that the latch lock 200 is in the locked state based on the second electrical signal.

[0065] In another embodiment, the first Hall sensor 261 can be replaced by a reed switch sensor. For the specific cooperation relationship between the reed switch sensor and the first magnet 262, please refer to the cooperation relationship between the first Hall sensor 261 and the first magnet 262. For the sake of saving space, it will not be described again here.

[0066] In the second embodiment, combined with Figure 7 The rotation sensing module 260 includes a light-shielding plate 264 and a photoelectric sensor (referred to as the first photoelectric sensor 263). The light-shielding plate 264 is disposed on the transmission shaft 240. When the handle 210 drives the transmission shaft 240 to rotate, the transmission shaft 240 will drive the light-shielding plate 264 to rotate synchronously.

[0067] When the latch lock 200 is in the unlocked state, the light-shielding plate 264 is in the light-shielding unlocked position; when the latch lock 200 is in the locked state, the light-shielding plate 264 is in the light-shielding locked position. The first photoelectric sensor 263 is disposed on the rotation path of the light-shielding plate 264, and the first photoelectric sensor 263 is disposed in the light-shielding locked position.

[0068] When the handle 210 synchronously drives the light-shielding plate 264 to rotate via the transmission shaft 240, causing the light-shielding plate 264 to leave the light-shielding locking position, the light emitted by the first photoelectric sensor 263 is no longer blocked by the light-shielding plate 264, thereby generating an electrical signal (referred to as the first electrical signal). The first photoelectric sensor 263 outputs the first electrical signal to the control unit 310. Based on the first electrical signal, the control unit 310 determines that the latch lock 200 is unlocking. The control unit 310 generates a first drive control signal based on the first electrical signal, and controls the motor to work through the first drive control signal, controlling the deadbolt lock 100 to unlock synchronously, improving unlocking efficiency and enhancing the user experience.

[0069] When the reset mechanism synchronously drives the light-shielding plate 264 to rotate via the transmission shaft 240, causing the light-shielding plate 264 to return to the light-shielding locked position, the light emitted by the first photoelectric sensor 263 is blocked by the light-shielding plate 264, thereby generating a corresponding electrical signal (referred to as the second electrical signal). The first photoelectric sensor 263 outputs the second electrical signal to the control unit 310, and the control unit 310 determines that the latch lock 200 is in the locked state based on the second electrical signal.

[0070] In the third embodiment, combined with Figure 8 The rotation sensing module 260 includes an encoder 265, which is sleeved on the drive shaft 240. When the handle 210 drives the drive shaft 240 to rotate, the drive shaft 240 will drive the encoder 265 to rotate synchronously.

[0071] When the latch lock 200 is in the unlocked state, the encoder 265 is in the encoded unlocked position; when the latch lock 200 is in the locked state, the encoder 265 is in the encoded locked position.

[0072] When the handle 210 synchronously drives the encoder 265 to rotate via the drive shaft 240, causing the encoder 265 to leave the coded locking position, the encoder 265 generates a corresponding electrical signal (referred to as the first electrical signal). The encoder 265 outputs the first electrical signal to the control unit 310. Based on the first electrical signal, the control unit 310 determines that the latch lock 200 is unlocking. The control unit 310 generates a first drive control signal based on the first electrical signal, and controls the motor to work through the first drive control signal, controlling the deadbolt lock 100 to unlock synchronously, improving unlocking efficiency and enhancing the user experience.

[0073] When the reset mechanism synchronously drives the encoder 265 to rotate via the transmission shaft 240, causing the encoder 265 to return to the locked position, the encoder 265 generates a corresponding electrical signal (referred to as the second electrical signal). The encoder 265 outputs the second electrical signal to the control unit 310, and the control unit 310 determines that the latch lock 200 is in the locked state based on the second electrical signal.

[0074] In the fourth embodiment, combined with Figure 9 The rotation sensing module 260 includes a micro switch 266 and an actuating part 267 disposed on the transmission shaft 240. The actuating part 267 is disposed on the transmission shaft 240. When the handle 210 drives the transmission shaft 240 to rotate, the transmission shaft 240 will drive the actuating part 267 to rotate synchronously.

[0075] When the latch lock 200 is in the unlocked state, the actuating part 267 is in the unlocked position; when the latch lock 200 is in the locked state, the actuating part 267 is in the locked position. The micro switch 266 is disposed on the rotation path of the actuating part 267, and the micro switch 266 is disposed close to the locked position.

[0076] When the handle 210 drives the actuating part 267 to rotate synchronously via the transmission shaft 240, causing the actuating part 267 to leave the locked position, the micro switch 266 can no longer be activated by the actuating part 267, thereby generating an electrical signal (referred to as the first electrical signal). The micro switch 266 outputs the first electrical signal to the control unit 310. Based on the first electrical signal, the control unit 310 determines that the latch lock 200 is unlocking. The control unit 310 generates a first drive control signal based on the first electrical signal, and controls the motor to work through the first drive control signal, controlling the deadbolt lock 100 to unlock synchronously, improving unlocking efficiency and enhancing the user experience.

[0077] When the reset mechanism synchronously drives the actuating part 267 to rotate via the transmission shaft 240, causing the actuating part 267 to return to the locked position, the micro switch 266 is activated by the actuating part 267, thereby generating an electrical signal (referred to as the second electrical signal). The micro switch 266 outputs the second electrical signal to the control unit 310, and the control unit 310 determines that the latch lock 200 is in the locked state based on the second electrical signal.

[0078] Therefore, as can be seen from the specific implementation methods of the first, second, third, and fourth embodiments, the rotation sensing module 260 of this utility model has multiple implementation forms. After understanding the technical solution of this utility model, any modifications and improvements that can be conceived by those skilled in the art based on the technical concept of this utility model without creative effort should be considered to fall within the protection scope defined by this utility model.

[0079] In a typical embodiment of this utility model, the control unit 310 is installed in the deadbolt 100. Because the deadbolt 100 and the latch 200 are separately configured, the control unit 310 installed in the deadbolt 100 and the rotation sensing module 260 installed in the latch 200 are connected by wire or wireless means.

[0080] In one embodiment, combined Figure 2 The control unit 310 is wirelessly connected to the rotation sensing module 260. Specifically, the deadbolt 100 also includes a first communication unit 170, which is electrically connected to the control unit 310; the latch lock 200 includes a second communication unit 250, which is electrically connected to the rotation sensing module 260. The first communication unit 170 and the second communication unit 250 are wirelessly connected. The control unit 310 and the rotation sensing module 260 communicate via the first communication unit 170 and the second communication unit 250. In this embodiment, it is recommended that both the first communication unit 170 and the second communication unit 250 be near-field communication devices to achieve good data communication at close range. For example, both the first communication unit 170 and the second communication unit 250 may be radio frequency devices, but this should not be construed as a limitation of the present invention.

[0081] In another embodiment, combined Figure 4 The control unit 310 is wiredly connected to the rotation sensing module 260. Specifically, the control unit 310 and the rotation sensing module 260 are connected via a cable 320 to enable good data interaction between them. In this embodiment, the cable 320 can be arranged within the door body 400 to avoid interference from the external environment and extend its service life. In this embodiment, it is recommended that the cable 320 be an electronic wire harness, but this should not be construed as a limitation of the present invention.

[0082] In a typical embodiment of this utility model, combined with Figure 10 , Figure 11 and Figure 13The deadbolt 100 includes the first transmission mechanism and the first bolt 160. The first transmission mechanism includes the lock cylinder lever 150, which is connected to the first bolt 160. The lock cylinder lever 150 drives the first bolt 160 to move linearly along the extension direction of the first bolt 160, so that the first bolt 160 extends into or exits from the first bolt groove, thereby realizing the locking or unlocking of the deadbolt 100.

[0083] The lock cylinder lever 150 is perpendicular to the first lock tongue 160, and the lock cylinder lever 150 is fixed to the first lock tongue 160. (Combined) Figure 12 The lock cylinder lever 150 has a flat cylindrical structure, comprising an adjacent unlocking surface 151 and a locking surface 152. The unlocking surface 151 is perpendicular to the locking surface 152, and the width of the unlocking surface 151 is greater than the width of the locking surface 152. When the lock cylinder lever 150 is rotated so that the unlocking surface 151 faces the first bolt groove, the first bolt 160 retracts from the first bolt groove, thus unlocking. When the lock cylinder lever 150 is rotated so that the locking surface 152 faces the first bolt groove, the first bolt 160 extends into the first bolt groove, thus locking.

[0084] In a typical embodiment of this utility model, combined with Figure 13 The first transmission mechanism further includes a rotating shaft 111, a gear disk 120, a linkage block 113, a photoelectric sensor 114 (referred to as the second photoelectric sensor 114), a motor 115, and a control unit 310. The control unit 310 is electrically connected to the second photoelectric sensor 114 and the motor 115, respectively. The motor 115 is used to drive the gear disk 120 to rotate. Figure 2 The rotating shaft 111 is connected to the lock cylinder lever 150, and in combination Figure 16 The linkage block 113 is disposed on the rotating shaft 111. The gear disk 120 has a gear hole, and the gear disk 120 is sleeved on the rotating shaft 111 through the gear hole. The gear hole is a circular hole, and the section of the rotating shaft 111 corresponding to the gear hole has a cylindrical structure. This ensures that the gear hole, when sleeved on the rotating shaft 111, prevents the gear disk 120 from directly driving the rotating shaft 111 to rotate. Alternatively, the diameter of the gear hole is larger than the shaft diameter of the rotating shaft 111, so that there is no transmission engagement between the gear hole and the rotating shaft 111, thus preventing the gear disk 120 from directly driving the rotating shaft 111 to rotate.

[0085] Combination Figure 14 and Figure 16The gear disk 120 is provided with a transmission block 122, which is arranged on the same rotation path as the linkage block 113 on the rotating shaft 111. When the motor 115 drives the gear disk 120 to rotate, the transmission block 122 on the gear disk 120 will move synchronously. Since the transmission block 122 and the linkage block 113 are arranged on the same rotation path, the transmission block 122 will abut against the linkage block 113 during rotation, so that the transmission block 122 will drive the rotating shaft 111 to rotate via the linkage block 113. The rotating shaft 111 will drive the lock cylinder lever 150 to rotate, and the lock cylinder lever 150 will drive the first lock tongue 160 to move linearly, so that the first lock tongue 160 extends into or retracts from the first lock tongue groove, thereby locking or unlocking the deadbolt 100.

[0086] Combination Figure 14 and Figure 15 The gear disk 120 is provided with multiple light-blocking plates 130. The gear disk 120 will drive the light-blocking plates 130 to rotate synchronously. The second photoelectric sensor 114 is disposed on the rotation path of the light-blocking plates 130. When the gear disk 120 drives the light-blocking plates 130 past the second photoelectric sensor 114, the light-blocking plates 130 will block the light emitted by the second photoelectric sensor 114, causing the second photoelectric sensor 114 to generate a light-blocking signal. The second photoelectric sensor 114 outputs the light-blocking signal to the control unit 310. Based on the light-blocking signal, the control unit 310 obtains the rotation angle of the gear disk 120 and determines the working state of the deadbolt 100.

[0087] In this embodiment, the toothed disk 120 is provided with a plurality of light-blocking plates 130, which are evenly distributed in the circumferential direction of the toothed disk 120. For example, if the toothed disk 120 is provided with two light-blocking plates 130, the two light-blocking plates 130 are arranged at 180° to each other; if the toothed disk 120 is provided with three light-blocking plates 130, the three light-blocking plates 130 are arranged sequentially along the circumferential direction of the toothed disk 120, and adjacent light-blocking plates 130 are arranged at 120° to each other.

[0088] In this embodiment, the present invention is described using the example of four light-blocking plates 130 on the gear disk 120, but this should not be construed as a limitation of the present invention. Specifically, the four light-blocking plates 130 are arranged sequentially along the circumference of the gear disk 120, with adjacent light-blocking plates 130 at 90° intervals. When the motor 115 drives the gear disk 120 to rotate, the gear disk 120 will drive the four light-blocking plates 130 to rotate synchronously. Assuming that when the gear disk 120 is not rotating, the angle at which the second photoelectric sensor 114 is blocked by one of the light-blocking plates 130 is 0°; when the motor 115 drives the gear disk 120 to rotate, and the second photoelectric sensor 114 is blocked by another light-blocking plate 130, the control unit 310 receives the light-blocking signal output by the second photoelectric sensor 114, and the control unit 310 determines that the gear disk 120 has rotated 90°.

[0089] The control unit 310 outputs a drive control signal to the motor 115 to control the forward and reverse rotation of the motor 115, thereby controlling the rotation direction of the gear 120. The control unit 310 controls the rotation of the gear 120 to control the rotation of the lock cylinder lever 150, thereby controlling the first bolt 160 to extend into or retract from the first bolt groove, and thus controlling the locking or unlocking of the deadbolt 100. Furthermore, the control unit 310 monitors the rotation angle of the gear 120 using a second photoelectric sensor 114 to prevent the rotation angle of the gear 120 from being too large or too small, ensuring that the deadbolt 100 accurately locks or unlocks.

[0090] In this embodiment, combined with Figure 14 The transmission block 122 extends along the circumferential direction of the gear disk 120, such that its two end faces 1221 along the circumferential direction are angled. One of these end faces 1221 can abut against the linkage block 113 on the rotating shaft 111, thereby driving the rotating shaft 111 to rotate via the linkage block 113. Specifically, when the control unit 310 controls the motor 115 to rotate forward, one end face 1221 abuts against the linkage block 113; when the control unit 310 controls the motor 115 to rotate in reverse, the other end face 1221 abuts against the linkage block 113. This improves the rotation efficiency of the gear disk 120. In this invention, it is recommended that the transmission block 122 be arranged across 180°, that is, that the two end faces 1221 are arranged at 180°, so that when the motor 115 rotates forward or in reverse, the rotation angle of the transmission block 122 can be reduced, allowing it to quickly abut against the linkage block 113.

[0091] In a typical embodiment of this utility model, the gear disk 120 is provided with a travel groove 121, which extends along the circumferential direction of the gear disk 120. The travel groove 121 and the transmission block 122 extend along the same path, and are connected end-to-end to form a ring structure. Furthermore, the two end faces 1221 of the transmission block 122 constitute the two groove walls of the travel groove 121 in the circumferential direction. In this embodiment, the present utility model is described using the example of the transmission block 122 spanning 180° along the circumferential direction and the travel groove 121 also spanning 180° along the circumferential direction, but this should not be construed as a limitation of the present utility model.

[0092] Combination Figure 13 and Figure 16 The first transmission mechanism also includes a linkage ring 118, which is sleeved on the rotating shaft 111 and fixedly disposed therebetween. A linkage block 113 is fixedly disposed on the linkage ring 118; in other words, the linkage block 113 is fixedly disposed on the rotating shaft 111 via the linkage ring 118. In this embodiment, it is recommended that the linkage ring 118 and the linkage block 113 be integrally formed, but this should not be construed as a limitation of the present invention.

[0093] Combination Figure 14 and Figure 16 The gear disk 120 is provided with an annular groove 123, which is located inside the stroke groove 121, that is, the annular groove 123 is closer to the gear hole of the gear disk 120 than the stroke groove 121. The annular groove 123 is connected to the stroke groove 121. The linkage ring 118 is installed in the annular groove 123, and the linkage block 113 on the linkage ring 118 is inserted into the stroke groove 121 to limit the linkage block 113 through the stroke groove 121. The two end faces 1221 of the transmission block 122 can be selectively abutted against the linkage block 113.

[0094] When the gear disk 120 rotates, one end face 1221 of the transmission block 122 abuts against the linkage block 113. The gear disk 120 rotates further to drive the linkage block 113 to rotate through the corresponding end face 1221. The linkage block 113 then drives the rotating shaft 111 and the lock cylinder lever 150 to rotate in sequence, which in turn drives the first lock tongue 160 to move linearly, so as to realize that the first lock tongue 160 extends into or retracts from the first lock tongue groove, thereby realizing the locking or unlocking of the deadbolt 100.

[0095] To facilitate the description of the working principle of the deadbolt 100 of this utility model, combined with Figure 18 and Figure 19 , Figure 18This is a planar schematic diagram of the assembly of the rotating shaft, the linkage ring, and the second photoelectric sensor. Figure 19 This is a planar schematic diagram of the gear disk 120. Let the four light-blocking plates 130 on the gear disk 120 be the first light-blocking plate 131, the second light-blocking plate 132, the third light-blocking plate 133 and the fourth light-blocking plate 134 in sequence along the circumferential direction of the gear disk 120. Let the two end faces 1221 of the transmission block 122 be the first end face 1222 and the second end face 1223, respectively.

[0096] Combination Figure 20 Assuming the deadbolt 100 is in the locked-reset state, the first light-blocking plate 131 is located at the second photoelectric sensor 114. The second photoelectric sensor 114 generates a light-blocking signal, and the control unit 310 determines that the deadbolt 100 is in the locked-reset state based on the light-blocking signal. Furthermore, the first end face 1222 abuts against the linkage block 113 of the linkage ring 118.

[0097] Combination Figure 20 and Figure 21 When the lock 100 needs to be unlocked, the control unit 310 outputs the drive control signal to the motor 115, controlling the motor 115 to rotate forward. The motor 115 drives the gear 120 to rotate counterclockwise by 90°. The first end face 1222 on the transmission block 122 drives the linkage ring 118 to rotate counterclockwise by 90° via the linkage block 113. During this process, the first light-blocking plate 131 on the gear 120 will move away from the second photoelectric sensor 114. The second photoelectric sensor 114 will no longer generate a light-blocking signal, but instead generates a photoelectric signal. After receiving the photoelectric signal, the control unit 310 determines that the first light-blocking plate 131 has moved away from the second photoelectric sensor 114. Simultaneously, the fourth light-blocking plate 134 on the gear disc 120 will rotate 90° counterclockwise to the second photoelectric sensor 114. The fourth light-blocking plate 134 will block the light emitted by the second photoelectric sensor 114, generating a light-blocking signal again. The control unit 310 receives the light-blocking signal, determines that the fourth light-blocking plate 134 has rotated to the second photoelectric sensor 114, and determines that the deadbolt 100 has been unlocked. At the same time, the first end face 1222 on the gear disc 120 also drives the linkage ring 118, the rotating shaft 111, the lock cylinder lever 150, and the first bolt 160 to rotate, causing the first bolt 160 to retract relative to the first bolt groove to complete the unlocking, so that the deadbolt 100 is in the unlocked state.

[0098] Combination Figure 21 and Figure 22When the lock 100 is in the unlocked state, the control unit 310 controls the motor 115 to reverse. The motor 115 drives the gear 120 to rotate 180° clockwise, causing the first end face 1222 of the transmission block 122 to rotate 180° clockwise to separate from the linkage block 113. Simultaneously, the second end face 1223 of the transmission block 122 rotates 180° clockwise and abuts against the linkage block 113. During the 180° clockwise rotation of the gear 120, neither the first end face 1222 nor the second end face 1223 will be linked with the linkage block 113, so that the gear 120 will not drive the linkage ring 118, the rotating shaft 111, the lock cylinder lever 150, and the first lock tongue 160 to rotate via the linkage block 113. Furthermore, during the 180° clockwise rotation of the gear disk 120, the fourth light-blocking plate 134 will move away from the second photoelectric sensor 114, causing the second photoelectric sensor 114 to generate a photoelectric signal. The first light-blocking plate 131 and the second light-blocking plate 132 sequentially pass by the second photoelectric sensor 114. Based on the first light-blocking plate 131 and the second light-blocking plate 132, the second photoelectric sensor 114 sequentially generates a light-blocking signal, a photoelectric signal, and a light-blocking signal, with the second light-blocking plate 132 remaining at the second photoelectric sensor 114. The control unit 310 sequentially receives the photoelectric signal and the light-blocking signal output by the second photoelectric sensor 114. Therefore, the control unit 310 determines that the deadbolt 100 is in an unlocked reset state, preparing for the subsequent locking of the deadbolt 100.

[0099] Combination Figure 22 and Figure 23When the deadlock 100 is in the unlocked reset state and needs to be locked, the control unit 310 outputs the drive control signal to the motor 115 to control the motor 115 to reverse. The motor 115 drives the gear plate 120 to rotate 90° clockwise, so that the second end face 1223 of the transmission block 122 drives the abutting linkage block 113 to rotate 90° clockwise. The linkage block 113 drives the linkage ring 118, the rotating shaft 111, the lock cylinder paddle 150 and the first lock tongue 160 to move synchronously, so that the first lock tongue 160 extends out relative to the first lock tongue groove and inserts into the first lock tongue groove, thereby making the deadlock 100 locked. Furthermore, during the 90° clockwise rotation of the gear disk 120, the second light-blocking plate 132 will move away from the second photoelectric sensor 114, causing the second photoelectric sensor 114 to generate a photoelectric signal. Then, the third light-blocking plate 133 will rotate 90° clockwise back to the second photoelectric sensor 114, causing the second photoelectric sensor 114 to generate a light-blocking signal, and the third light-blocking plate 133 will remain at the second photoelectric sensor 114. The control unit 310 sequentially receives the photoelectric signal and the light-blocking signal output by the second photoelectric sensor 114, thereby determining that the deadbolt 100 is in a locked state.

[0100] Combination Figure 23 and Figure 20When the lock 100 is in the locked state, the control unit 310 controls the motor 115 to rotate forward. The motor 115 drives the gear 120 to rotate counterclockwise by 180°, causing the second end face 1223 of the transmission block 122 to rotate counterclockwise by 180° to separate from the linkage block 113. Simultaneously, the first end face 1222 of the transmission block 122 rotates counterclockwise by 180° to abut against the linkage block 113. During the rotation of the gear 120, neither the first end face 1222 nor the second end face 1223 will be linked with the linkage block 113, so that the gear 120 will not drive the linkage ring 118, the rotating shaft 111, the lock cylinder lever 150, and the first lock tongue 160 to rotate via the linkage block 113. Furthermore, during the counterclockwise 180° rotation of the gear disk 120, the third light-blocking plate 133 will move away from the second photoelectric sensor 114, causing the second photoelectric sensor 114 to generate a photoelectric signal. The second light-blocking plate 132 and the first light-blocking plate 131 sequentially pass by the second photoelectric sensor 114. Based on the second light-blocking plate 132 and the first light-blocking plate 131, the second photoelectric sensor 114 sequentially generates a light-blocking signal, a photoelectric signal, and a light-blocking signal, while the first light-blocking plate 131 remains at the second photoelectric sensor 114. The control unit 310 sequentially receives the photoelectric signal and the light-blocking signal output by the second photoelectric sensor 114. Therefore, the control unit 310 determines that the deadlock 100 is in a locked reset state, preparing for the subsequent unlocking of the deadlock 100.

[0101] Therefore, the above describes the entire process of the lock 100 of this utility model from the locked reset state - unlocked state - unlocked reset state - locked state - locked reset state. The lock 100 can determine its state by receiving photoelectric signals and light-blocking signals, so that the control unit 310 can accurately control the operation of the lock 100 with only a single second photoelectric sensor 114, reducing the number of sensors in the lock 100 and lowering the production cost of the lock 100.

[0102] In one embodiment, combined Figures 15 to 18 The deadbolt 100 also includes a second Hall sensor (referred to as the second Hall sensor 141) and a magnet (referred to as the second magnet 142). The second magnet 142 is mounted on the rotating shaft 111. When the rotating shaft 111 rotates, it will drive the second magnet 142 to rotate synchronously. The second Hall sensor 141 is located on the rotation path of the second magnet 142. When the second magnet 142 approaches the second Hall sensor 141, the second Hall sensor 141 will generate a Hall signal.

[0103] In this embodiment, the second Hall sensor 141 is disposed adjacent to the second photoelectric sensor 114, and the second Hall sensor 141 is disposed at a 90° angle to the first locking tongue groove. The second magnet 142 is disposed at a 90° angle to the linkage block 113, and because the rotating shaft 111 and the lock cylinder lever 150 are fixed together, and the rotating shaft 111 and the lock cylinder lever 150 rotate synchronously, the orientation of the second magnet 142 and the orientation of the upper locking surface 152 of the lock cylinder lever 150 are set to be the same.

[0104] Combination Figure 20 and Figure 21 When the control unit 310 controls the motor 115 to operate, the motor 115 drives the gear 120 to rotate, and the gear 120 drives the rotating shaft 111 to rotate, so that the unlocking surface 151 of the rotating shaft 111 faces the first locking tongue groove, and the first locking tongue 160 retracts from the first locking tongue groove, thus unlocking the deadbolt 100. At the same time, the locking surface 152 of the rotating shaft 111 faces the second Hall sensor 141, and the second magnet 142 approaches the second Hall sensor 141. The second Hall sensor 141 senses the second magnet 142 and generates a first Hall signal. When the control unit 310 receives the first Hall signal, it determines that the deadbolt 100 is in the unlocked state.

[0105] Combination Figure 22 and Figure 23 When the control unit 310 controls the motor 115 to operate, the motor 115 drives the first latch 160 via the gear plate 120, the rotating shaft 111, and the lock cylinder lever 150, so that when the upper locking surface 152 of the first latch 160 faces the first latch groove, the first latch 160 extends into the first latch groove, and the deadbolt 100 is locked. At the same time, the second magnet 142 moves away from the second Hall sensor 141, and the second Hall sensor 141 cannot sense the second magnet 142. As a result, the second Hall sensor 141 generates a second Hall signal. When the control unit 310 receives the second Hall signal, it determines that the deadbolt 100 is in the locked state.

[0106] Therefore, the deadlock 100 of this utility model can be assisted by the second Hall sensor 141 to determine whether the deadlock 100 is in a locked state, a locked reset state, an unlocked state, or an unlocked reset state, so that the control unit 310 can accurately monitor the state of the deadlock 100.

[0107] In one embodiment, combined Figure 10 , Figure 11 and Figure 13The lock 100 further includes a housing 143 and a knob 144. The rotating shaft 111, the gear plate 120, the linkage ring 118, the second photoelectric sensor 114, the second Hall sensor 141, the motor 115, and the control unit 310 are all installed inside the housing 143. The rotating shaft 111 protrudes outside the housing 143. The lock cylinder lever 150 is inserted into the end of the rotating shaft 111 that protrudes from the housing 143, and the lock cylinder lever 150 is fixedly connected to the rotating shaft 111. The knob 144 is pivotally mounted on the housing 143, and the knob 144 and the rotating shaft 111 are located on opposite sides of the housing 143. The other end of the rotating shaft 111 is inserted into the knob 144, and the rotating shaft 111 is fixedly connected to the knob 144.

[0108] The user can rotate the knob 144, which in turn rotates the shaft 111, the lock cylinder lever 150, and the first bolt 160, causing the first bolt 160 to extend or retract relative to the first bolt groove, thereby locking or unlocking the deadbolt 100. It can be understood that the locking or unlocking of the deadbolt 100 can be achieved by physically rotating the knob 144. In this embodiment, it is recommended that the knob 144 and the shaft 111 be integrally formed, but this should not be construed as a limitation of this utility model.

[0109] In a further embodiment, combined with Figure 10 , Figure 18 , Figures 20 to 13 The knob 144 is provided with an indicator line 145, the orientation of which is the same as the orientation of the upper locking surface 152 of the lock cylinder lever 150. Since the knob 144 is fixed to the rotating shaft 111, when the lock cylinder lever 150 rotates, the first latch 160 extends into the first latch groove, and the upper locking surface 152 faces the first latch groove. Simultaneously, the knob 144 rotates with the rotating shaft 111, causing the indicator line 145 to point towards the first latch groove, indicating that the lock 100 is in the locked state. Conversely, when the lock cylinder lever 150 rotates, causing the upper locking surface 152 to no longer face the first latch groove, the knob 144 rotates synchronously, causing the indicator line to no longer point towards the first latch groove, indicating that the lock 100 is in the unlocked state.

[0110] In one embodiment, combined Figure 13 and Figure 17The outer casing 143 is further provided with a base plate 1431, and the base plate 1431 has a pivot hole 1432. The knob 144 is disposed on the outer side of the base plate 1431. The rotating shaft 111 passes through the pivot hole 1432 to be inserted into the knob 144, so that the knob 144 is pivotally mounted on the base plate 1431. Bearing grooves 1433 are formed on both sides of the base plate 1431, that is, the two bearing grooves 1433 are respectively disposed on the inner side and the outer side of the base plate 1431, and the two bearing grooves 1433 are coaxially arranged with the pivot hole 1432.

[0111] Bearings 147 are installed in both bearing slots 1433, and the bearings 147 are tightly fitted with their respective slots. The bearings 147 are also fitted onto the rotating shaft 111, and are tightly fitted with the rotating shaft 111. Because the two bearings 147 are tightly fitted with their respective slots 1433 and the rotating shaft, the rotating shaft 111 is also tightly fitted with the pivot hole 1432, thus solving the problem of the rotating shaft 111 wobbling during rotation. Furthermore, because the bearings 147 exist between the knob 144 and the base plate 1431, the friction between the knob 144 and the base plate 1431 will not increase after the knob 144 is rotated under force, avoiding affecting the feel of the knob 144 and increasing the driving resistance of the motor, thereby improving the user experience.

[0112] In one embodiment, combined Figure 13 and Figure 15 The lock 100 is also provided with a circuit board 146, which is installed inside the housing 143. The second photoelectric sensor 114 and the second Hall sensor 141 are both integrated on the circuit board 146.

[0113] In summary, when a user rotates the handle of the latch lock, the rotation sensing module can detect the rotation of the drive shaft that rotates synchronously with the handle, generate an electrical signal, and the control unit synchronously controls the latch lock to automatically unlock based on this electrical signal, thereby reducing the unlocking steps of the combination lock and improving the user experience.

[0114] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features of this utility model that have similar functions.

[0115] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A combination lock, characterized in that The control unit and the split setting dead lock and latch bolt, the dead lock includes motor, first transmission mechanism and first lock tongue, the motor is used to respond to drive control signal, and drive the first transmission mechanism drives the first lock tongue to stretch out and retract; The latch bolt is provided with a handle, a transmission shaft, a second lock tongue and a rotation sensing module, the handle is arranged to rotate to drive the transmission shaft to drive the second lock tongue to stretch out and retract, the rotation sensing module is used to detect the rotation of the transmission shaft to generate an electrical signal, the control unit receives the electrical signal, and outputs the drive control signal to the motor based on the electrical signal.

2. The combination lock of claim 1, wherein, The rotation sensing module includes a first magnet, a first Hall sensor or a reed sensor, the first magnet is arranged on the transmission shaft, and the first Hall sensor or the reed sensor is arranged close to the rotation path of the first magnet.

3. The combination lock of claim 1 wherein, The rotation sensing module includes a first photoelectric sensor and a light shield, the light shield is arranged on the transmission shaft, and the first photoelectric sensor is arranged on the rotation path of the light shield.

4. The combination lock of claim 1, wherein, The rotation sensing module includes an encoder, and the encoder is sleeved on the transmission shaft.

5. The combination lock of claim 1, wherein, The rotation sensing module includes a micro switch and a touch part arranged on the transmission shaft, and the micro switch is arranged on the rotation path of the touch part.

6. The combination lock of claim 1, wherein, The control unit is arranged in the dead lock, the dead lock is further provided with a first communication module electrically connected with the control unit, and the latch bolt is further provided with a second communication module electrically connected with the rotation sensing module, and the first communication module and the second communication module are wirelessly connected.

7. The combination lock of claim 1, wherein, The control unit is arranged in the dead lock, and the control unit and the rotation sensing module are electrically connected through a cable.

8. Combination lock according to any one of claims 1 to 7, characterized in that The first transmission mechanism includes a lock core dial, a rotating shaft, a toothed disc, a linkage block and a second photoelectric sensor, the lock core dial is connected with the first lock tongue and the rotating shaft respectively, the linkage block is fixedly arranged on the rotating shaft, the toothed disc is sleeved on the rotating shaft, the toothed disc is provided with a transmission block and a plurality of light shields, the transmission block and the linkage block are arranged on the same rotation path, the second photoelectric sensor is arranged on the rotation path of the light shield, the plurality of light shields are sequentially and spaced apart along the circumferential direction of the toothed disc, and the motor is in transmission connection with the toothed disc.

9. The combination lock of claim 8, wherein, The transmission block is arranged in extension along the circumferential direction of the toothed disc, the toothed disc is provided with a stroke groove, the stroke groove and the transmission block are sequentially arranged along the same extension path, and the two end faces of the transmission block form two groove walls of the stroke groove, and the linkage block is inserted into the stroke groove.

10. The combination lock of claim 9, wherein, The transmission block and the stroke groove are arranged across 180°, and the toothed disc is provided with four light shields which are uniformly and spaced apart in the circumferential direction of the toothed disc.

11. The combination lock of claim 8, wherein, The dead lock is further provided with a second Hall sensor and a second magnet, the second magnet is arranged on the rotating shaft, and the second Hall sensor is arranged on the rotation path of the second magnet.

12. The combination lock of claim 1, wherein, The latch further comprises a housing and a reset mechanism, the transmission shaft is inserted into the housing to be connected with the handle, the reset mechanism is arranged in the housing, the reset mechanism comprises a reset torsion spring and a reset block, the reset block is fixed on the transmission shaft, and one end of the reset torsion spring is connected with the reset block.

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