Door lock system

Abstract

A door lock system comprises a structural body, a buckle plate, an icebreaking relay, a lock plate, a driving assembly, a multifunctional relay and a control circuit board. The buckle plate, the lock plate, the icebreaking relay and the multifunctional relay are pivoted to the first shaft rod and the second shaft rod of the structural body respectively, and the buckle plate can rotate to different state positions. The icebreaking relay is connected with the buckle plate in a hooked mode and provided with a first magnetic assembly. The lock plate hooks the buckle plate, can rotatably release the buckle plate and is provided with a second magnetic assembly. The driving assembly comprises a motor, a two-way push rod and a locking and unlocking connecting rod set, the two-way push rod is arranged on the third shaft rod of the structural body in a pivoted mode and provided with a third magnetic assembly, and when the motor drives the two-way push rod to rotate in the locking or unlocking direction from the neutral position, the multifunctional relay is driven through the locking or unlocking connecting rod set. The control circuit board is provided with a plurality of sensors for detecting the first magnetic assembly, the second magnetic assembly and the third magnetic assembly when the buckle plate, the lock plate and the bidirectional push rod are located at the corresponding positions. Therefore, unlocking and locking actions can be executed by a single motor.

Description

Technical Field

[0001] This utility model relates to automotive door locks, and more particularly to a door lock system that performs multiple functions with a single motor. Background Technology

[0002] A typical car door lock is installed on the door frame to lock the door pivotally mounted on the frame. A car door lock has a rotatable strike plate and a lock plate. After the lock hook on the door is inserted into the lock groove on the strike plate, rotating the strike plate deflects the lock groove, preventing the lock hook from retracting in the insertion direction. The lock plate then engages with the strike plate, locking it in place. To unlock, the lock plate is removed from the strike plate, allowing the strike plate to rotate and allowing the lock hook to exit the lock groove.

[0003] Traditional car door locks only require unlocking, so a relay is simply installed on the lock plate, and a cable is used to operate the relay to move the lock plate. Modern car door locks, to accommodate functions such as automatic locking and electric unlocking, must have separate motors and control circuits to perform these functions. Furthermore, generally, each function requires a separate motor. Therefore, multi-functional electric vehicle door locks are bulky and expensive to manufacture.

[0004] In view of this, the creator has devoted himself to studying the aforementioned existing technologies and applying theoretical principles to try his best to solve the above-mentioned problems, which has become the creator's goal for improvement. Utility Model Content

[0005] This utility model provides an intelligent door lock mechanism that performs multiple functions with a single motor.

[0006] This utility model provides a door lock system, comprising a structure, a strike plate, an icebreaker relay, a lock plate, a drive assembly, a multi-functional relay, and a control circuit board. The structure has a first shaft, a second shaft, and a third shaft. The strike plate is pivotally mounted on the first shaft and defaults to an unlocked position via a first reset assembly. The strike plate can rotate to a fully locked position and a partially locked position between the unlocked and fully locked positions. The icebreaker relay is pivotally mounted on the second shaft and engages with the strike plate, rotating in conjunction with it. A first magnetic component is provided on the icebreaker relay. The lock plate is pivotally mounted on the second shaft and defaults to a locked position via a second reset assembly, engaging the strike plate in a partially locked or fully locked position and rotatably releasing the strike plate. A second magnetic component is provided on the lock plate. The drive assembly includes a motor, a bidirectional push rod, an unlocking linkage assembly, and a locking linkage assembly. The bidirectional push rod is pivotally mounted on a third shaft. The motor drives the bidirectional push rod to rotate from a neutral position along a locking direction or an unlocking direction. A third magnetic component is provided on the bidirectional push rod. When the bidirectional push rod rotates along the locking direction, it drives the locking linkage assembly. A multi-functional relay is pivotally mounted on a second shaft and connected to the unlocking linkage assembly. The multi-functional relay has a locking plate relay and an ice-breaking relay. The locking plate relay pushes the locking plate to unlock the buckle, and the ice-breaking relay pushes the ice-breaking relay. When the bidirectional push rod rotates along the unlocking direction, it drives the multi-functional relay via the unlocking linkage assembly. The control circuit board is equipped with a first buckle sensor, a second buckle sensor, a third buckle sensor, a lock plate sensor, and an actuation sensor. When the buckle is in the unlocked, half-locked, and fully locked positions, the control circuit board can detect the first magnetic component on the icebreaker relay through the third buckle sensor, the second buckle sensor, and the first buckle sensor, respectively. When the lock plate is in the locked position, the control circuit board can detect the second magnetic component through the lock plate sensor. When the bidirectional push rod is in the neutral position, the control circuit board can detect the third magnetic component through the actuation sensor.

[0007] In one embodiment of this utility model, the locking linkage assembly includes a locking relay. The locking relay is pivotally mounted on a third shaft and has a hook for hooking the buckle plate. A guide rail is provided on the structure and a part of the hook is inserted into the guide rail. When the first buckle plate sensor and the second buckle plate sensor sequentially detect the first magnetic component, the control circuit board drives the motor to rotate the bidirectional push rod in the upward locking direction to push the locking relay, thereby causing the hook to move along the guide rail and rotate the buckle plate until both the second buckle plate sensor and the third buckle plate sensor detect the first magnetic component and the buckle is electrically locked.

[0008] In one embodiment of this utility model, when the first buckle sensor detects the first magnetic component and the control circuit board receives an unlocking command, the control circuit board drives the motor to rotate the bidirectional push rod in the unlocking direction and push the unlocking linkage group, thereby driving the multi-functional relay to rotate and using the lock plate relay part to push the lock plate away from the buckle plate for electric unlocking.

[0009] In one embodiment of this utility model, when the control circuit board drives the motor to rotate the bidirectional push rod in the unlocking direction and the first buckle sensor does not detect the first magnetic component, the control circuit board drives the motor to continue rotating the bidirectional push rod in the unlocking direction, thereby driving the multi-functional relay to continue rotating until the buckle is driven until the first buckle sensor detects the first magnetic component and forcibly unlocks the device.

[0010] In one embodiment of this utility model, when the control circuit board is electrically locked, if the third buckle sensor detects the first magnetic component but the second buckle sensor does not detect the first magnetic component, the control circuit board drives the motor to rotate in the opposite direction until the actuation sensor detects the third magnetic component.

[0011] In one embodiment of this utility model, when the control circuit board is electrically unlocked, if the lock plate sensor does not detect the second magnetic component, the control circuit board stops driving the motor and maintains the position of the lock plate.

[0012] In one embodiment of this utility model, when the control circuit board is electrically unlocked, the first buckle sensor detects the first magnetic component, and then the control circuit board drives the motor to rotate in the opposite direction until the actuation sensor detects the third magnetic component.

[0013] In one embodiment of this utility model, when the control circuit board forcibly unlocks, the first buckle sensor detects the first magnetic component, and then the control circuit board drives the motor to rotate in the opposite direction until the actuation sensor detects the third magnetic component.

[0014] In one embodiment of this utility model, the door lock system further includes a guide rail arm, which is pivotally mounted on the structure and the guide rail is mounted on the guide rail arm. When the multi-functional relay rotates, it simultaneously pushes the guide rail arm away from the buckle plate.

[0015] In one embodiment of this utility model, when the multi-functional relay rotates, it can push the guide arm away from the buckle plate, causing the action path of the hook to disengage from the buckle plate.

[0016] In one embodiment of this utility model, when the bidirectional push rod pushes the locking relay to rotate the buckle plate to the fully locked position, the multi-functional relay can rotate simultaneously to drive the hook to disengage from the buckle plate.

[0017] In one embodiment of this utility model, the locking plate relay and the ice-breaking relay are support arms extending from a multi-functional relay.

[0018] In one embodiment of this utility model, a multi-functional relay drives an ice-breaking relay, which in turn drives the buckle plate.

[0019] In one embodiment of this utility model, a multi-functional relay is connected to a cable, which can pull the multi-functional relay to rotate and push the locking plate away from the buckle plate.

[0020] The door lock system of this utility model operates the strike plate and the lock plate separately by bidirectional rotation of a single motor. Furthermore, the lock plate is equipped with a multi-functional relay, thereby enabling a single motor to perform various unlocking and locking actions. Attached Figure Description

[0021] Figure 1 This is a perspective view of a door lock system according to an embodiment of the present invention.

[0022] Figure 2 This is a three-dimensional exploded view of a door lock system according to an embodiment of the present invention.

[0023] Figure 3 This is a three-dimensional schematic diagram of the internal structure of one side of a door lock system according to an embodiment of the present invention.

[0024] Figure 4 This is a three-dimensional exploded view of the internal structure of a door lock system according to an embodiment of the present invention.

[0025] Figure 5 This is a three-dimensional schematic diagram of the internal structure of the door lock system on the other side of an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram illustrating the manual unlocking operation of a door lock system according to an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of a door lock system in a half-locked state according to an embodiment of the present invention.

[0028] Figures 8 to 10 This is a schematic diagram illustrating the operation of an electric locking system according to an embodiment of the present invention.

[0029] Figure 11 This is a control signal diagram for the electric locking of a door lock system according to an embodiment of the present invention.

[0030] Figure 12 The flowchart shows the control steps for the electric locking of a door lock system according to an embodiment of the present invention.

[0031] Figures 13 to 15 This is a schematic diagram illustrating the operation of an electric unlocking mechanism for a door lock system according to an embodiment of the present invention.

[0032] Figure 16 This is a control signal diagram for the electric unlocking of a door lock system according to an embodiment of the present invention.

[0033] Figure 17 The flowchart shows the control steps for electric unlocking of a door lock system according to an embodiment of this utility model.

[0034] Figure 18This is a schematic diagram illustrating the forced unlocking operation of a door lock system according to an embodiment of the present invention.

[0035] Figure 19 This is a control signal diagram for the forced unlocking of a door lock system according to an embodiment of the present invention.

[0036] Explanation of symbols in the attached diagram:

[0037] 10: Lock hook;

[0038] 100: Structure;

[0039] 100a: Entrance passage;

[0040] 101, 102, 103: Shell components;

[0041] 110: First shaft;

[0042] 111: First reset component;

[0043] 120: Second shaft;

[0044] 121: Second reset component;

[0045] 130: Third shaft;

[0046] 131: Third reset component;

[0047] 201: Release direction;

[0048] 202: Lock slot;

[0049] 203: Latch direction;

[0050] 210: Buckle panel;

[0051] 211: Semi-locking part;

[0052] 212: Fully locked positioning part;

[0053] 213: Passive hook;

[0054] 214: Linked Hook;

[0055] 220: Lock plate;

[0056] 221: Second magnetic component;

[0057] 222: Relay connecting rod;

[0058] 223: Pin;

[0059] 224: Lock plate body;

[0060] 300: Driver component;

[0061] 301: Third magnetic component;

[0062] 310: Motor;

[0063] 311: Transmission gear;

[0064] 320: Two-way push rod;

[0065] 321: Locking direction;

[0066] 322: Unlock direction;

[0067] 330: Unlock the linkage assembly;

[0068] 331, 332: Connecting rods;

[0069] 331a: Retaining wall;

[0070] 340: Locking linkage assembly;

[0071] 341: Locking relay;

[0072] 341a: Retaining wall;

[0073] 342: Claw;

[0074] 342a: Guide post;

[0075] 343: Guide rail arm;

[0076] 343a: Guide rail;

[0077] 401: Continuous direction;

[0078] 410: Multifunctional relay;

[0079] 410b: Actuation point;

[0080] 411: Lock plate relay;

[0081] 412: Guide rail relay;

[0082] 413: Icebreaking continuation section;

[0083] 414: Cable;

[0084] 415: Unlocking section;

[0085] 420: Icebreaker relay;

[0086] 421: First magnetic component;

[0087] 422: Retaining wall;

[0088] 424: Hook and groove;

[0089] 500: Control circuit board;

[0090] 501: First buckle sensor;

[0091] 502: Second snap-on sensor;

[0092] 503: Third buckle sensor;

[0093] 504: Lock plate sensor;

[0094] 505: Actuation sensor. Detailed Implementation

[0095] In the description of this utility model, it should be understood that the terms front, rear, left, right, front end, rear end, end, longitudinal, transverse, vertical, top, bottom, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting conditions of this utility model.

[0096] Unless otherwise defined, terms such as "substantially" and "approximately" are used to describe and narrate small changes. When used in connection with an event or situation, the term may include the exact moment the event or situation occurred, or the point in time from which the event or situation occurred. For example, when used in connection with a numerical value, the term may include a range of variation less than or equal to ±10% of the value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0097] The detailed description and technical content of this utility model will be explained in conjunction with the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this utility model.

[0098] Figure 1 This is a perspective view of a door lock system according to an embodiment of the present invention. Figure 2 This is an exploded perspective view of a door lock system according to an embodiment of the present invention. (See attached diagram.) Figure 1 and Figure 2This utility model provides a door lock system installed on the door frame of a car to lock the door pivotally mounted on the door frame. The system includes a structure 100, a snap plate 210, a lock plate 220, a drive assembly 300, and a multi-functional relay 410. This utility model does not limit the form of the structure 100; the structure 100 may include multiple shell components (101, 102, 103), and the snap plate 210 and lock plate 220 are disposed within the structure 100. The structure 100 encloses an entrance channel 100a for the door latch to engage the door lock system.

[0099] Figure 3 This is a perspective view of the internal structure of one side of a door lock system according to an embodiment of the present invention. (See attached image) Figure 2 and Figure 3 The structure 100 is provided with a first shaft 110, a second shaft 120, and a third shaft 130. The first shaft 110, the second shaft 120, and the third shaft 130 are disposed on one side of one of the housing members 101. A latching plate 210 is pivotally mounted on the first shaft 110, and a locking plate 220 is pivotally mounted on the second shaft 120. The housing members (101, 102, 103) are assembled to house the first shaft 110, the second shaft 120, and the third shaft 130 within the structure 100.

[0100] Figure 4 This is an exploded perspective view of the internal structure of a door lock system according to an embodiment of the present invention. (See attached diagram.) Figure 3 and Figure 4 The buckle plate 210 is pivotally mounted on the first shaft 110 and is in a default state with a first reset component 111. In this embodiment, the first reset component 111 is a helical spring sleeved on the first shaft 110, and the first reset component 111 presses against the buckle plate 210. The locking plate 220 is pivotally mounted on the second shaft 120 and is in a default state with a second reset component 121. In this embodiment, the second reset component 121 is a helical spring sleeved on the second shaft 120, and the second reset component 121 presses against the locking plate 220.

[0101] The door lock system of this utility model further includes a locking linkage group 340 in its drive assembly 300. The locking linkage group 340 includes a locking relay 341, a hook 342, and a guide arm 343. The locking relay 341 is pivotally mounted on the third shaft 130, and the hook 342 is pivotally mounted on the locking relay 341 for hooking the snap plate 210. Specifically, a driven hook 213 extends from the edge of the snap plate 210 for engaging the hook 342. The locking relay 341 is in a default state with a third reset component 131. In this embodiment, the third reset component 131 is a helical spring sleeved on the third shaft 130, and the third reset component 131 presses against the locking relay 341.

[0102] The guide arm 343 is pivotally mounted on the structure 100, and the guide arm 343 is provided with a guide rail 343a. A portion of the hook 342 is inserted into the guide rail 343a so that the hook 342 can be guided by the guide rail 343a when it moves. Specifically, the hook 342 includes a guide post 342a, which is inserted into the guide rail 343a and can slide along the guide rail 343a.

[0103] Figure 5 This is a perspective view of the internal structure of the door lock system on the other side of an embodiment of the present invention. (See also...) Figures 3 to 5 The drive assembly 300 includes a motor 310, a bidirectional push rod 320, and an unlocking linkage assembly 330. The motor 310 can be located on the other side of the aforementioned housing 101. The bidirectional push rod 320 is pivotally mounted on the third shaft 130, and the motor 310 can drive the bidirectional push rod 320 to rotate bidirectionally. The bidirectional push rod 320 and the motor 310 can be poweredly connected by at least one transmission gear 311, and the motor 310 and the transmission gear 311 can be respectively located on opposite sides of the aforementioned housing 101. The unlocking linkage assembly 330 includes two linkages (331, 332).

[0104] The multi-functional relay 410 is connected to and can be rotated by the unlocking linkage 330. Specifically, the multi-functional relay 410 is pivotally connected to the linkages (331, 332). The multi-functional relay 410 is made of bent metal sheet, and one end of one linkage 331 is pivotally connected to the third shaft 130, and its other end is pivotally connected to one end of another linkage 332. The other end of the other linkage 332 is pivotally connected to a consistent moving point 410b on the periphery of the multi-functional relay 410. The multi-functional relay 410 is pivotally mounted on the second shaft 120.

[0105] The door lock system of this utility model also includes a control circuit board 500. The control circuit board 500 and the motor 310 are disposed on the same side of the aforementioned housing 101, and the motor 310 is electrically connected to the control circuit board 500 so that the motor 310 can be controlled by the control circuit board 500. A bend at the edge of the connecting rod 331 pivotally connected to the third shaft 130 forms a retaining wall 331a, and a bend at the edge of the locking relay 341 forms a retaining wall 341a. The bidirectional push rod 320 is disposed between these two retaining walls (331a, 341a) and is in a neutral position by default. The bidirectional push rod 320 can rotate from the neutral position toward either of these two retaining walls (331a, 341a) to selectively push the locking relay 341 or the unlocking linkage 330.

[0106] See Figures 3 to 4The door lock system of this utility model further includes an ice-breaking relay 420, which is made of bent metal sheet. The ice-breaking relay 420 is pivotally mounted on the second shaft 120 and hooks into the latch plate 210 for rotation. Specifically, one end of the ice-breaking relay 420 is pivotally connected to the second shaft 120, and the other end is provided with a hooking groove 424. The latch plate 210 has a linkage hook 214, which hooks into the hooking groove 424 on the ice-breaking relay 420. The hooking groove 424 extends radially along the second shaft 120. A first magnetic component 421 is provided on the ice-breaking relay 420, a second magnetic component 221 is provided on the lock plate 220, and a third magnetic component 301 is provided on the bidirectional push rod 320. The control circuit board 500 can detect the operation of the first magnetic component 421, the second magnetic component 221, and the third magnetic component 301. Specifically, the locking plate 220 includes a relay link 222 and a locking plate body 224. Both the relay link 222 and the locking plate body 224 are pivotally mounted on the second shaft 120. The locking plate body 224 is used to engage with the buckle plate 210. One end of the relay link 222 is provided with a pin 223, which is inserted into the locking plate body 224. One end of the locking plate body 224 is pivotally connected to the second shaft 120 and the other end is engaged with the buckle plate 210. Therefore, the locking plate body 224 cannot be pushed away from the buckle plate 210 by the connection between the locking plate body 224 and the buckle plate 210. Thus, the relay link 222 extends to the other side of the second shaft 120 to push the locking plate body 224 to rotate. The other end of the relay link 222 is provided with a second magnetic component 221, and the end edge is bent to strengthen the structure for the multi-functional relay 410 to push against. The first magnetic component 421 is located in the ice-breaking relay 420. It rotates in conjunction with the buckle plate 210 and moves along the arc path of the center of the second shaft 120, thus extending the moving distance to make the detection results more accurate.

[0107] The multi-functional relay 410 includes a locking plate relay 411, an ice-breaking relay 413, and an unlocking part 415. When the multi-functional relay 410 is rotated by the unlocking linkage 330, the locking plate relay 411 pushes the locking plate 220 to unlock the buckle plate 210, and the ice-breaking relay 413 and the unlocking part 415 rotate simultaneously.

[0108] Figure 6 This is a schematic diagram illustrating the manual unlocking operation of a door lock system according to an embodiment of the present invention. (See attached diagram.) Figure 6The multi-functional relay 410 has a lock plate relay portion 411 for pushing the relay link 222 of the lock plate 220. The lock plate relay portion 411 is an extension arm of the multi-functional relay 410. Since the relay link 222 is subjected to force by the second reset assembly 121, the end edge of the lock plate relay portion 411 is bent to strengthen the structure for pushing the relay link 222. The multi-functional relay 410 is also connected to a cable 414, which can pull the multi-functional relay 410 to rotate in a relay direction 401 to push the lock plate 220 away from the buckle plate 210. When the buckle plate 210 is released from the lock plate 220, it rotates in a release direction 201 to return to its default state and is located in an unlocked position. That is, the rotation direction of the buckle plate 210 toward the unlocked position is defined as the release direction 201. A latch sensor is provided on the control circuit board 500 corresponding to the unlocking position of the latch plate 210. The latch sensor corresponding to the unlocking position is the first latch sensor 501. When the latch plate 210 is in the unlocking position, the control circuit board 500 can detect the first magnetic component 421 through the first latch sensor 501. The control circuit board 500 is also provided with a locking sensor 504. When the locking plate 220 rotates to release the latch plate 210, the control circuit board 500 can detect the second magnetic component 221 through the corresponding locking sensor 504. The edge of the latch plate 210 has a locking groove 202 for accommodating the lock hook 10 on the door. When the latch plate 210 is in the unlocking position, the locking groove 202 is aligned with the entrance channel 100a to allow the lock hook 10 to enter the locking groove 202 through the entrance channel 100a. The multi-functional relay 410 has a guide rail relay part 412, which is a support arm extending from the multi-functional relay 410. When the multi-functional relay 410 rotates in the relay direction 401 to unlock, the guide rail relay part 412 pushes the guide rail arm 343 away from the buckle plate 210, thereby causing the action path of the hook 342 to disengage from the buckle plate 210.

[0109] Figure 7 This is a schematic diagram of a door lock system in a partially locked state according to an embodiment of the present invention. (See attached diagram.) Figure 6 and Figure 7 The first shaft 110 is offset to one side of the inlet channel 100a. When the lock hook 10 moves into the lock groove 202 along the inlet channel 100a, it can further push the latch plate 210 to rotate away from the unlocking position. At this time, the rotation direction of the latch plate 210 is opposite to the release direction 201, which is defined as the latching direction 203. See reference. Figure 7When the buckle plate 210 rotates away from the unlocked position, the lock groove 202 rotates and intersects the entrance channel 100a, and the lock hook 10 is confined at the intersection of the lock groove 202 and the entrance channel 100a. The edge of the buckle plate 210 has a half-locked position portion 211. When the buckle plate 210 is in the half-locked position, the lock plate 220 is in a locked position of its default state. The edge of the lock plate 220 hooks the half-locked position portion 211 of the buckle plate 210 and positions part of the buckle plate 210 in the half-locked position. Specifically, the half-locked position portion 211 has a structure facing the release direction 201, thereby preventing the buckle plate 210 from rotating in the release direction 201. The control circuit board 500 is provided with buckle plate sensors corresponding to the unlocked position and the half-locked position of the buckle plate 210. The buckle plate sensor corresponding to the half-locked position is a second buckle plate sensor 502. When the buckle plate 210 is in the half-locked position, the control circuit board 500 can detect the first magnetic component 421 by means of the second buckle plate sensor 502.

[0110] When the lock hook 10 is moved into the lock groove 202, thereby pushing the buckle plate 210 to rotate to the half-lock position and being locked by the lock plate 220, the control circuit board 500 can start to perform the electric locking action described later by measuring the movement of the first magnetic component 421 by the first buckle plate sensor 501 and the second buckle plate sensor 502 corresponding to the half-lock position and the unlock position, respectively.

[0111] Figures 8 to 10 This is a schematic diagram illustrating the operation of the electric locking mechanism of a door lock system according to an embodiment of this utility model. (See attached diagram.) Figure 8 The control circuit board 500, via the motor 310, drives the bidirectional push rod 320 to rotate in a locking direction 321, thereby driving the locking linkage assembly 340. The pawl 342 then drives the driven hook 213 to lock the buckle plate 210. Specifically, the bidirectional push rod 320 pushes the locking relay 341, which causes the pawl 342 to move along the guide rail 343a towards the driven hook 213 of the buckle plate 210. (See also...) Figure 9 After the pawl 342 hooks the moving hook 213, the bidirectional push rod 320 continues to rotate in the upward locking direction 321, pushing the locking relay 341. The locking relay 341 drives the pawl 342 to continue moving along the guide rail 343a, rotating the latch plate 210 from the half-locked position toward the latching direction 203. The edge of the latch plate 210 has a fully locked position 212. After the latch plate 210 disengages from the half-locked position, the locking plate 220 disengages from the half-locked position 211 and presses against the edge of the latch plate 210. The edge of the latch plate 210 slides relative to the locking plate 220, and the fully locked position 212 moves toward the locking plate 220 along the latching direction 203. Specifically, the fully locked position 212 is oriented toward the release direction 201, thereby stopping the latch plate 210 from rotating toward the release direction 201. When rotated to the fully locked position, the fully locked position 212 reaches the locking plate 220, and the locking plate 220 returns to the locked position. See Figure 10The locking plate 220 engages with the fully locked position part 212, thus positioning the buckle plate 210 in the fully locked position. Therefore, the user only needs to move the lock hook 10 into the lock slot 202, and the control circuit board 500 will then perform the electric locking action.

[0112] A third latching sensor 503 is provided on the control circuit board 500 corresponding to the fully locked position of the latching plate 210. When the latching plate 210 is in the fully locked position, the control circuit board 500 can detect the first magnetic component 421 through the corresponding third latching sensor 503. A actuator sensor 505 is provided on the control circuit board 500. When the bidirectional push rod 320 is in a default neutral position, the control circuit board 500 can detect the third magnetic component 301 through the corresponding actuator sensor 505.

[0113] Specifically, each sensor (clasp sensor, locking plate sensor 504, and actuation sensor 505) generates a high-potential signal when it detects the corresponding magnetic component (first magnetic component 421, second magnetic component 221, and third magnetic component 301), and generates a low-potential signal otherwise. The control circuit board 500 determines the position and movement of the clasp 210, locking plate 220, and bidirectional push rod 320 based on the state of the high-potential or low-potential signals from each sensor, and further drives the motor 310 to cause the bidirectional push rod 320 to continue to perform the corresponding actions.

[0114] Figure 11 This is a control signal diagram for the electric locking of a door lock system according to an embodiment of the present invention. Figure 12 The flowchart shows the control steps for the electric locking of a door lock system according to an embodiment of the present invention.

[0115] The control actions for the electric locking operation of the control circuit board 500 are as follows:

[0116] 1a) Determine if the buckle plate 210 changes from the fully open state to the half-locked state: See [link / reference] Figures 6 to 7 , Figure 11 and Figure 12 The control circuit board 500 measures a high-potential signal from the first magnetic component 421 using the first latch sensor 501 corresponding to the unlocking position, and measures a high-potential signal from the third magnetic component 301 using the actuation sensor 505. This determines that the latch 210 is in the unlocking position and the bidirectional push rod 320 is in the default neutral position, while all other sensors measure low-potential signals. When the control circuit board 500 measures a momentary high-potential signal using the lock plate sensor 504, and simultaneously measures that the first latch sensor 501 switches to a low-potential signal and the second latch sensor 502 corresponding to the half-lock position switches to a high-potential signal, the control circuit board 500 determines that the lock plate 220 has been pushed open by the latch plate 210 and has reset, and that the latch plate 210 has rotated from the unlocking position to the half-lock position, proceeding to the next step.

[0117] 1b) Electric locking in the half-locked state: See Figures 8 to 9 , Figure 11 and Figure 12 Next, the control circuit board 500 detects that the second latch sensor 502 has switched to a low-potential signal, determining that the latch 210 is in the half-locked position. The control circuit board 500 drives the motor 310 to rotate forward, causing the bidirectional push rod 320 to rotate in the upward locking direction 321 (actuating sensor 505 to switch to a low-potential signal) and further pushes the locking relay 341. The locking relay 341 causes the latch 210 to rotate in the latching direction 203. When the control circuit board 500 detects a momentary high-potential signal by the lock plate sensor 504 and simultaneously detects that the third latch sensor 503 corresponding to the fully locked position has switched to a high-potential signal, the control circuit board 500 determines that the latch 210 has entered the fully locked position. At the same time, the lock plate 220 is pushed open, and the next step is initiated.

[0118] 1c) Determining the fully locked state: When the control circuit board 500 simultaneously detects high-potential signals from the second latch sensor 502 and the third latch sensor 503, the control circuit board 500 determines that the latch 210 is in the fully locked position. If the latch 210 continues to exceed the fully locked position, proceed to the next step.

[0119] 1d) Itinerary: See Figures 9 to 12 When the control circuit board 500 detects that the second snap plate sensor 502 switches to a low potential signal and the third snap plate sensor 503 maintains a high potential signal, the control circuit board 500 determines that the snap plate 210 has exceeded the fully locked position. The control circuit board 500 then drives the motor 310 to rotate (reverse), thereby driving the bidirectional push rod 320 to reset to the neutral position to release the snap plate 210. The snap plate 210 is then pushed back to the fully locked position by the first reset component 111. When the snap plate 210 returns to the fully locked position, it is stopped and positioned by the fully locked positioning part 212. At the same time, the control circuit board 500 detects that the second snap plate sensor 502 switches to a high potential signal and determines that it is in a fully locked state. The electric locking action is completed.

[0120] 1e) Reset: When the control circuit board 500 detects the third magnetic component 301 by the actuation sensor 505, the control circuit board 500 detects that the bidirectional push rod 320 has been reset to the neutral position and stops the motor 310.

[0121] See also Figure 6 As mentioned earlier, when the multi-functional relay 410 rotates in the relay direction 401 to unlock, it simultaneously pushes the guide arm 343 away from the buckle plate 210, causing the hook 342's movement path to disengage from the buckle plate 210. Therefore, in the event of an emergency during the electric locking operation (such as being caught by a foreign object or hand), the multi-functional relay 410 can be pulled in the relay direction 401 by the cable 414, thereby breaking the linkage between the hook 342 and the buckle plate 210 and unlocking the buckle plate 210.

[0122] Figures 13 to 15 This is a schematic diagram illustrating the electric unlocking operation of a door lock system according to an embodiment of the present invention. (See attached diagram.) Figures 13 to 14 The bidirectional push rod 320 can rotate in an unlocking direction 322 to push the unlocking linkage group 330, thereby causing the multi-functional relay 410 to rotate in the relaying direction 401 and push the lock plate 220 away from the buckle plate 210 to unlock. When the control circuit board 500 receives an unlocking command, it begins the electric unlocking action described later. The control circuit board 500 drives the bidirectional push rod 320 to rotate in the unlocking direction 322 to push the retaining wall 331a of the corresponding link 331 of the unlocking linkage group 330, thereby pushing the actuation point 410b of the multi-functional relay 410 through the pivotally connected link 332, thereby causing the multi-functional relay 410 to rotate in the relaying direction 401 and push the lock plate 220 away from the buckle plate 210. See also Figure 15 After the buckle plate 210 is released, it is driven by the first reset component 111 to rotate in the release direction 201 to the unlock position.

[0123] Figure 16 This is a control signal diagram for the electric unlocking of a door lock system according to an embodiment of the present invention. Figure 17 The flowchart shows the control steps for electric unlocking of a door lock system according to an embodiment of this utility model.

[0124] The control actions for the electric unlocking action of the control circuit board 500 are as follows:

[0125] 2a) Determine the fully locked state: See Figure 14 , Figure 16 and Figure 17 The control circuit board 500 detects a high-potential signal from the first magnetic component 421 using the third latch sensor 503 corresponding to the fully locked position, and simultaneously detects a high-potential signal from the locking plate sensor 504. Based on this, it determines that the latch 210 is locked in the fully locked position by the locking plate 220. Simultaneously, the control circuit board 500 detects a high-potential signal from the third magnetic component 301 using the actuation sensor 505, and based on this, determines that the bidirectional push rod 320 is in the neutral position.

[0126] 2b) Electric unlocking: See Figures 14 to 17 When the control circuit board 500 receives an unlocking command, it drives the motor 310 to reverse, which in turn rotates the bidirectional push rod 320 in the unlocking direction 322 (the actuator sensor 505 switches to a low-potential signal), thus pushing the unlocking linkage 330. When the control circuit board 500 detects that the lock plate sensor 504 has switched to a high-potential signal, it determines that the lock plate 220 has retracted from the locked position and releases the latch plate 210. The control circuit board 500 then stops the motor 310 to maintain the lock plate 220 releasing the latch plate 210 and proceeds to the next step.

[0127] 2c) Determine if the device is fully open: See [link / reference] Figures 15 to 17 If the control circuit board 500 detects that the first latch sensor 501 at the corresponding unlock position switches to a high potential signal and the lock sensor 504 switches to a low potential signal, then it is determined that the latch 210 has reached the unlock position and the lock plate 220 has reset to the locked position, the unlocking action is completed, and the process proceeds to the next step 2d).

[0128] 2d) Reset: The control circuit board 500 drives the motor 310 to rotate forward, causing the unlocking linkage 330 to reset. When the control circuit board 500 detects the third magnetic component 301 and determines that the bidirectional push rod 320 has been reset to the neutral position, it stops the motor 310.

[0129] Figure 18 This is a schematic diagram illustrating the forced unlocking operation of a door lock system according to an embodiment of the present invention. (See attached diagram.) Figure 18 When the bidirectional push rod 320 drives the multi-functional relay 410 to rotate in the relay direction 401 to perform an electric unlocking action, or when the control circuit board 500 detects that the lock plate 220 releases the buckle plate 210 (manual unlocking), but the control circuit board 500 does not detect that the buckle plate 210 is in the unlocking position, the control circuit board 500 will determine that the buckle plate 210 is stuck and perform the forced unlocking action described later, that is, directly operate the buckle plate 210 to unlock. Specifically, the multi-functional relay 410 has an ice-breaking relay part 413 for pushing the ice-breaking relay 420. The ice-breaking relay part 413 is a support arm extending from the multi-functional relay 410. The ice-breaking relay 420 is linked with the buckle plate 210 and is subjected to the force of the first reset component 111. Therefore, the end edge of the ice-breaking relay part 413 is bent to strengthen the structure for pushing against the ice-breaking relay 420, and a corresponding bend is formed at one edge of the ice-breaking relay 420 to form a retaining wall 422 for the ice-breaking relay part 413 to push against. The aforementioned locking plate relay part 411, guide rail relay part 412, and ice-breaking relay part 413 are arranged along the periphery of the multi-functional relay 410. When the multi-functional relay 410 rotates in the relay direction 401, it sequentially pushes the locking plate 220, the guide rail arm 343, and the ice-breaking relay 420. The control circuit board 500 controls the bidirectional push rod 320 to continue rotating in the unlocking direction 322, causing the multi-functional relay 410 to continue rotating in the relay direction 401 until its ice-breaking relay part 413 pushes the ice-breaking relay 420 to rotate around the second shaft 120. When the ice-breaking relay 420 rotates, it pushes the linkage hook 214 on the buckle plate 210 through the hook groove 424, thereby driving the buckle plate 210 to rotate around the first shaft 110 in the release direction 201 to the unlock position.

[0130] Figure 19 This is a control signal diagram for the forced unlocking of a door lock system according to an embodiment of the present invention. The control actions of the control circuit board 500 to perform the forced unlocking action are as follows:

[0131] See Figure 14 , Figure 17 and Figure 19 First, steps 2a), 2b), and 2c) of the aforementioned unlocking action are executed sequentially to determine the fully open state: Then, after waiting for a predetermined time (set to 1 second in this embodiment), the fully open state is determined. If the control circuit board 500 does not detect that the first latch sensor 501 has switched to a high potential signal, the latch 210 is determined to be stuck (if both the second latch sensor 502 and the third latch sensor 503 are at a high potential signal, it is determined to be stuck in the fully locked position; if the second latch sensor 502 is at a high potential signal but the third latch sensor 503 is at a low potential signal, it is determined to be stuck in the half-locked position). Therefore, the fully open state cannot be determined, and the forced unlocking step 3c is initiated.

[0132] 3c) Forced unlocking: See Figures 17 to 19 The drive motor 310 then reverses further, causing the bidirectional push rod 320 to continue rotating in the unlocking direction 322, thus continuing to push the unlocking linkage 330 until the first latch sensor 501 is detected to switch to a high-potential signal, at which point the motor 310 stops. When the control circuit board 500 detects that the first latch sensor 501 has switched to a high-potential signal and determines that the latch 210 is in the fully open position, the forced unlocking is completed, and the process proceeds to the next step (2d).

[0133] 2d) Reset: The control circuit board 500 drives the motor 310 to rotate forward, causing the unlocking linkage 330 to reset. When the control circuit board 500 detects the third magnetic component 301 and determines that the bidirectional push rod 320 has been reset to the neutral position, it stops the motor 310.

[0134] The door lock system of this utility model operates the snap plate 210 and the lock plate 220 respectively by bidirectional rotation of a single motor 310. Furthermore, the lock plate 220 is further equipped with a multi-functional relay 410, thereby enabling a single motor 310 to perform various unlocking and locking actions.

[0135] The above description is only a preferred embodiment of the present utility model and is not intended to limit the patent scope of the present utility model. Other equivalent changes that utilize the patent spirit of the present utility model should all fall within the patent scope of the present utility model.

Claims

1. A door lock system, characterized in that, include: A structure having a first shaft, a second shaft and a third shaft; A snap plate is pivotally mounted on the first shaft and defaults to an unlocked position with a first reset assembly, and the snap plate can be rotated to a fully locked position and a half-locked position between the unlocked position and the fully locked position; An ice-breaking relay is pivotally mounted on the second shaft and hooked to the buckle plate, rotating in conjunction with the buckle plate. A first magnetic component is provided on the ice-breaking relay. A locking plate is pivotally mounted on the second shaft and defaults to a locked position by a second reset component to hook the buckle in the half-locked position or the fully locked position and can be rotated to release the buckle. The locking plate is provided with a second magnetic component. A drive assembly includes a motor, a bidirectional push rod, an unlocking linkage group and a locking linkage group. The bidirectional push rod is pivotally mounted on the third shaft. The motor drives the bidirectional push rod to rotate from a neutral position along a locking direction or an unlocking direction. A third magnetic component is provided on the bidirectional push rod, wherein the bidirectional push rod drives the locking linkage group when rotating along the locking direction. A multi-functional relay is pivotally mounted on the second shaft and connected to the unlocking linkage assembly. The multi-functional relay has a locking plate relay and an ice-breaking relay. The locking plate relay is used to push the locking plate to unlock the buckle, and the ice-breaking relay is used to push the ice-breaking relay. When the bidirectional push rod rotates along the unlocking direction, it drives the multi-functional relay through the unlocking linkage assembly. as well as A control circuit board is provided with a first buckle sensor, a second buckle sensor, a third buckle sensor, a locking plate sensor, and an actuation sensor. When the buckle is in the unlocked position, the half-locked position, and the fully locked position, the control circuit board detects the first magnetic component on the icebreaker relay through the third buckle sensor, the second buckle sensor, and the first buckle sensor, respectively. When the locking plate is in the locked position, the control circuit board detects the second magnetic component through the locking plate sensor. When the bidirectional push rod is in the neutral position, the control circuit board detects the third magnetic component through the actuation sensor.

2. The door lock system according to claim 1, characterized in that, The locking linkage assembly includes a locking relay, which is pivotally mounted on the third shaft and has a hook for hooking the buckle plate, and a guide rail disposed on the structure, with a portion of the hook plate inserted in the guide rail. When the first buckle plate sensor and the second buckle plate sensor sequentially detect the first magnetic component, the control circuit board drives the motor to rotate the bidirectional push rod in the locking direction, thereby pushing the locking relay, which in turn causes the hook plate to move along the guide rail and rotate the buckle plate until both the second buckle plate sensor and the third buckle plate sensor detect the first magnetic component, thus electrically locking the buckle plate.

3. The door lock system according to claim 1, characterized in that, When the first buckle sensor detects the first magnetic component and the control circuit board receives an unlocking command, the control circuit board drives the motor to rotate the bidirectional push rod in the unlocking direction, thereby pushing the unlocking linkage group, which in turn drives the multi-functional relay to rotate and pushes the lock plate away from the buckle through the lock plate relay part, thus electrically unlocking the device.

4. The door lock system according to claim 3, characterized in that, When the control circuit board drives the motor to rotate the bidirectional push rod in the unlocking direction, and the first buckle sensor does not detect the first magnetic component, the control circuit board drives the motor to continue rotating the bidirectional push rod in the unlocking direction, thereby driving the multi-functional relay to continue rotating until the buckle is driven until the first buckle sensor detects the first magnetic component and forcibly unlocks the device.

5. The door lock system according to claim 1, characterized in that, When the control circuit board is electrically locked, the third buckle sensor detects the first magnetic component, but the second buckle sensor does not detect the first magnetic component. Then the control circuit board drives the motor to rotate in the opposite direction until the actuation sensor detects the third magnetic component.

6. The door lock system according to claim 1, characterized in that, When the control circuit board is electrically unlocked, if the lock plate sensor does not detect the second magnetic component, the control circuit board will stop driving the motor and maintain the position of the lock plate.

7. The door lock system according to claim 6, characterized in that, When the control circuit board is electrically unlocked, the first latch sensor detects the first magnetic component, and the control circuit board drives the motor to rotate in the opposite direction until the actuation sensor detects the third magnetic component.

8. The door lock system according to claim 1, characterized in that, When the control circuit board forcibly unlocks, the first latch sensor detects the first magnetic component, and the control circuit board drives the motor to rotate in the opposite direction until the actuation sensor detects the third magnetic component.

9. The door lock system according to claim 2, characterized in that, It also includes a guide rail arm, which is pivotally mounted on the structure, and the guide rail is mounted on the guide rail arm. When the multi-functional relay rotates, it simultaneously pushes the guide rail arm away from the buckle plate.

10. The door lock system according to claim 9, characterized in that, When the multi-functional relay rotates, it can push the guide arm away from the buckle, causing the hook's movement path to disengage from the buckle.

11. The door lock system according to claim 9, characterized in that, When the bidirectional push rod pushes the locking relay to rotate the buckle plate to the fully locked position, the multi-functional relay can rotate simultaneously to drive the hook to disengage from the buckle plate.

12. The door lock system according to claim 11, characterized in that, The multi-functional relay is connected to a cable that can pull the multi-functional relay to rotate and push the locking plate away from the buckle plate.

13. The door lock system according to claim 1, characterized in that, The locking plate relay and the ice-breaking relay are extensions of the multi-functional relay.

14. The door lock system according to claim 1, characterized in that, The multi-functional relay drives the ice-breaking relay, which in turn drives the buckle plate.

15. The door lock system according to claim 1, characterized in that, The multi-functional relay is connected to a cable that can pull the multi-functional relay to rotate and push the locking plate away from the buckle plate.

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