An electric unlocking mechanism and a bag lock

Abstract

The utility model relates to electric vehicle technical field, concretely relates to an electric unlocking mechanism and seat bag lock. An electric unlocking mechanism for locking assembly, include: drive assembly, including drive motor and drive gear, drive motor drive drive gear rotation, unlocking assembly, including toothless gear and unlocking piece, unlocking piece with toothless gear with rotation cooperation, unlocking piece is located between main lock plate and vice lock plate of locking assembly, when unlocking, drive gear drives toothless gear rotation, unlocking piece promotes vice lock plate to swing to remove the locking of main lock plate, when locking assembly is in the unlocking abnormal state of main lock plate locking, vice lock plate unlocking, unlocking piece is stopped by main lock plate, toothless gear and drive gear are in the toothed state of disengaging. The electric unlocking mechanism in the prior art in the unlocking abnormal state, will appear the technical problem of repeated knocking on structure and lead to the damage of structure.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, specifically to an electric unlocking mechanism and a seat lock. Background Technology

[0002] Electric vehicles typically have storage space under the seat for storing items. To prevent theft, a seat lock is usually installed on the vehicle. When the seat is lowered, the seat lock engages the latch under the seat, thus locking the seat. It can only be unlocked with a matching key.

[0003] Seat lock unlocking mechanisms generally include electric unlocking mechanisms and manual unlocking mechanisms. Electric unlocking mechanisms use remote control buttons to control the drive components inside the lock body to push the bolt in the locking mechanism to unlock. Manual unlocking mechanisms use a mechanical key to turn a rope to pull the bolt in the locking mechanism to unlock.

[0004] In the prior art, document CN117345049A discloses a one-way electric unlocking mechanism, comprising: a drive module, the drive module including a drive motor and a drive gear, the drive motor being used to drive the drive gear to rotate; an unlocking module, the unlocking module including a toothed gear and an unlocking component, the unlocking component being arranged to rotate with the toothed gear; when the locking mechanism is locked, the toothed gear is subjected to force so that its teeth engage with the drive gear, the toothed gear being able to rotate with the drive gear to cause the unlocking component to actuate the locking tongue of the locking mechanism to unlock; after the locking mechanism is unlocked, the toothed gear continues to rotate unidirectionally through its entire tooth, the force on the toothed gear is limited to the upstream side that does not affect the locking tongue, the tooth disengages from the drive gear, and the toothed gear does not continue to rotate with the drive gear.

[0005] The aforementioned one-way electric unlocking mechanism can unlock by driving the motor to rotate in one direction. However, if an abnormal unlocking state occurs, i.e. the bolt is driven to unlock, but the lock hook remains locked under external force, the drive motor will continue to work. In conjunction with the elastic pressure component, the unlocking component will continuously push the bolt to deflect against the force of the first torsion spring. Then the bolt will reset under the force of the first torsion spring, repeating the "deflection-reset-deflection-reset" action. During this process, the bolt will continuously strike the lock hook, which can easily damage the structure. Utility Model Content

[0006] To address the technical problem that existing electric unlocking mechanisms suffer structural damage due to repeated impacts when an unlocking malfunction occurs, this invention provides an electric unlocking mechanism and a seat lock, thus solving the aforementioned technical problem.

[0007] The technical solution of this utility model is as follows: This utility model provides an electric unlocking mechanism for locking components, comprising: A drive assembly includes a drive motor and a drive gear, wherein the drive motor drives the drive gear to rotate; The unlocking component includes a toothed gear and an unlocking element, wherein the unlocking element engages with the toothed gear as it rotates. The unlocking component is located between the main lock plate and the auxiliary lock plate of the locking assembly. When unlocking, the drive gear drives the toothed gear to rotate, and the unlocking component pushes the auxiliary lock plate to deflect to release the lock on the main lock plate. When the locking assembly is in an abnormal unlocking state where the main lock plate is locked and the auxiliary lock plate is unlocked, the unlocking component is blocked by the main lock plate. At this time, the toothed gear and the drive gear are in a disengaged state.

[0008] According to one embodiment of the present invention, the unlocking component includes a wheel-shaped portion, which engages with the toothed gear as it rotates. Two protrusions are formed on the end face of the wheel-shaped portion away from the toothed gear, and the two protrusions are evenly arranged circumferentially. The unlocking component engages with the locking component through the protrusions.

[0009] According to one embodiment of the present invention, when unlocking, one of the protrusions pushes the secondary lock plate to deflect; in the abnormal unlocking state, one of the protrusions is blocked by the main lock plate, and the secondary lock plate abuts against another protrusion; after the abnormal unlocking state is resolved, the main lock plate deflects to unlock, and the secondary lock plate pushes the protrusion to move to the unlocked state.

[0010] According to one embodiment of the present invention, the unlocking component further includes an elastic element, which acts on the toothed gear. When the locking component is locked, the elastic element pushes the toothed gear to the position where its teeth are initially engaged with the drive gear. When the locking component is in the unlocked state, under the action of the elastic element, the protrusion abuts against the secondary locking plate, limiting the toothed gear and the drive gear to be in the disengaged state.

[0011] According to one embodiment of the present invention, a pressure protrusion is formed on the toothed gear or the unlocking member, and the elastic member acts on the pressure protrusion so that the toothed gear is subjected to a force in the unlocking direction when it is in a disengaged state from the drive gear.

[0012] According to one embodiment of the present invention, the toothed gear includes two tooth sections separated by the toothed section, and the two tooth sections have the same structure and are evenly distributed circumferentially.

[0013] This utility model also provides a seat lock, including: The locking assembly includes a main locking plate and a secondary locking plate; Electric unlocking mechanism.

[0014] According to one embodiment of the present invention, the main locking plate is hinged and assembled, a first torsion spring acts on the main locking plate, and the first torsion spring provides an unlocking force for the main locking plate; the secondary locking plate is hinged and assembled, a second torsion spring acts on the secondary locking plate, and the second torsion spring provides a deflection force for the secondary locking plate toward the main locking plate.

[0015] According to one embodiment of the present invention, a limiting protrusion is formed on the secondary locking plate to limit the main locking plate to a locked state, and the end of the secondary locking plate away from the hinge point cooperates with the unlocking member.

[0016] According to one embodiment of the present invention, it further includes a lock body shell, which includes an intermediate shell, a front cover and a rear cover. The main lock plate, the secondary lock plate and the unlocking component are assembled on one side of the intermediate shell, and the drive motor and the drive gear are assembled on the other side of the intermediate shell. The front cover and the rear cover are respectively assembled on the front and rear sides of the intermediate shell to cover the internal structure. A reinforcing plate is also provided between the front cover and the intermediate shell.

[0017] Based on the above technical solution, the technical effects that this utility model can achieve are as follows: This utility model discloses an electric unlocking mechanism, comprising an unlocking component including a toothed gear and an unlocking member. The unlocking member is located between the main lock plate and the secondary lock plate. During unlocking, the unlocking member normally pushes the secondary lock plate to deflect and release the lock on the main lock plate. If, under external force, an abnormal unlocking state occurs where the secondary lock plate unlocks while the main lock plate remains locked, the unlocking member will be blocked by the main lock plate. The toothed gear and the drive gear will be disengaged and remain in this state. Even if the drive motor continues to operate, it will not cause the unlocking member to rotate and strike the structure, thus preventing structural damage. Only after the external force is released can the main lock plate rotate open, and the unlocking member is pushed to its unlocked position during the reset movement of the secondary lock plate. Even if the drive motor continues to operate during an abnormal unlocking state caused by external force, no structural damage will occur. Once the external force is released, the main lock plate can rotate open, and the locking assembly returns to the unlocked state.

[0018] The electric unlocking mechanism of this utility model specifically features an unlocking component with a wheel-shaped part that can rotate with a toothed gear. Two protrusions on the wheel-shaped part can engage with the locking assembly. During unlocking, the drive gear meshes with the toothed gear, and the motor drives the toothed gear to rotate. The unlocking component rotates accordingly, and one protrusion on the unlocking component can push the secondary lock plate to deflect, releasing the lock on the main lock plate, allowing the main lock plate to deflect and open. When the locking assembly is in an abnormal unlocking state where the main lock plate is locked and the secondary lock plate is unlocked, one protrusion can be blocked by the main lock plate, and the secondary lock plate abuts against the other protrusion, causing the toothed gear and drive gear to be in a disengaged state. The drive motor cannot drive the toothed gear to rotate, thus preventing structural collision. The electric unlocking mechanism of this utility model includes an elastic element in the unlocking component. This elastic element acts on the toothed gear. When the locking assembly is locked, the elastic element can push the toothed gear to a position where its teeth initially mesh with the drive gear. Thus, when unlocking is required, the drive motor can drive the toothed gear to rotate via the drive gear, thereby causing a protrusion on the unlocking component to push the secondary lock plate to sway, releasing the lock on the main lock plate. The main lock plate can then sway to the open state, achieving electric unlocking. When the toothed gear and the drive gear are in a disengaged state, the elastic element provides a force in the unlocking direction to the toothed gear, which is consistent with the driving direction of the drive motor. Therefore, the drive motor only needs to rotate in one direction to complete the unlocking action of the locking assembly. The seat lock of this utility model can be electrically unlocked by a drive motor. The drive motor only needs to drive in one direction, which simplifies the circuit and control. When the locking assembly is in an abnormal unlocking state where the main lock plate is locked and the secondary lock plate is unlocked due to external force, the unlocking part is limited by the locking assembly, so that the toothed gear and the drive gear are kept in a disengaged state. The drive motor will not drive the unlocking part to rotate, thus preventing damage to the structure due to collision. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the electric unlocking mechanism of this utility model; Figure 2 This is a structural diagram of the other side of the electric unlocking mechanism; Figure 3 A schematic diagram of the toothed gear and the unlocking component engaging with each other during rotation; Figure 4 for Figure 3 A schematic diagram of the structure shown from another perspective; Figure 5 This is a schematic diagram of the structure of the seat lock of this utility model; Figure 6 A schematic diagram of the seat lock from another perspective; Figure 7 A schematic diagram of the structure in which the locking and unlocking components are assembled on the intermediate housing; Figure 8 A schematic diagram of the structure of the main locking plate and the first torsion spring in conjunction; Figure 9 A schematic diagram of the structure for the engagement of the secondary locking plate and the second torsion spring; Figure 10 A schematic diagram of the drive assembly and the toothed gear assembled on the intermediate housing; Figure 11 This refers to the state of the locking and unlocking components when the device is unlocked. Figure 12 This is the state of the drive assembly and the missing tooth gear in the unlocked state. Figure 13 for Figure 12 Enlarged view of part A; Figure 14 This refers to the state of the locking and unlocking components when the device is locked. Figure 15 This is the state of the drive assembly and the missing tooth gear assembly in the locked state. Figure 16 for Figure 15 Enlarged view of part B; Figure 17 The status of the locking and unlocking components under abnormal unlocking conditions; Figure 18 This describes the assembly status of the drive components and the missing gear under abnormal unlocking conditions. Figure 19 for Figure 18 Enlarged view of part C; In the diagram: 1-Drive assembly; 11-Drive motor; 111-Worm gear; 12-Drive gear; 13-Gear set; 2-Unlocking assembly; 21-Gear with missing tooth; 211-Tooth; 212-Gear with missing tooth; 213-Pressure protrusion; 22-Unlocking component; 221-Wheel-shaped part; 222-Protrusion; 23-Elastic component; 3-Locking assembly; 31-Main lock plate; 311-Lock opening; 312-Vertex; 313-Inner side; 32-Secondary lock plate; 321-Limiting protrusion; 322-First mating surface; 323-Second mating surface; 33-First torsion spring; 34-Second torsion spring; 4-Lock body shell; 41-Intermediate shell; 42-Front cover; 43-Rear cover; 44-Lock groove; 5-Reinforcing plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] like Figure 1-4 As shown, this embodiment proposes an electric unlocking mechanism for the locking assembly 3. The electric unlocking mechanism includes a drive assembly 1 and an unlocking assembly 2. The drive assembly 1 includes a drive motor 11 and a drive gear 12, with the drive motor 11 driving the drive gear 12 to rotate. The unlocking assembly 2 includes a toothed gear 21 and an unlocking component 22, with the unlocking component 22 engaging with the toothed gear 21 as it rotates. The unlocking component 22 is located between the main locking plate 31 and the secondary locking plate 32 of the locking assembly 3. When unlocking, the drive motor 11 drives the toothed gear 21 to rotate via the drive gear 12, and the unlocking component 22 rotates accordingly, pushing the secondary locking plate 32 to deflect and release the lock on the main locking plate 31. When the locking assembly 3 experiences an abnormal unlocking state where the main locking plate 31 is locked and the secondary locking plate 32 is unlocked, the unlocking component 22 can be blocked by the main locking plate 31. At this time, the toothed gear 21 and the drive gear 12 are in a disengaged state. Even if the drive motor 11 continues to work, the drive gear 12 will not transmit power to the toothed gear 21, and the unlocking component 22 will not repeatedly strike the locking assembly 3.

[0027] The drive assembly 1 includes a drive motor 11 and a drive gear 12, with the drive motor 11 driving the drive gear 12 to rotate. Specifically, the drive motor 11 drives the drive gear 12 to rotate through a gear set 13, which includes several double gears that are sequentially coupled and driven. The drive motor 11 drives the first double gear of the gear set 13, and the last double gear meshes with the drive gear 12.

[0028] As a preferred technical solution in this embodiment, the output end of the drive motor 11 is connected to the worm gear 111, and the worm gear 111 meshes with the first double gear.

[0029] As a preferred technical solution in this embodiment, the drive motor 11 only needs to rotate in one direction for output.

[0030] The unlocking component 2 includes a toothed gear 21 and an unlocking element 22. The toothed gear 21 and the unlocking element 22 rotate and engage. The toothed gear 21 engages with the drive gear 12. When the drive gear 12 and the toothed gear 21 are meshed, the drive gear 12 can drive the toothed gear 21 and the unlocking element 22 to rotate. When the drive gear 12 and the toothed gear 21 are disengaged, the drive gear 12 cannot drive the toothed gear 21 to rotate.

[0031] Specifically, the toothed gear 21 includes tooth portions 211 and tooth-deficient portions 212, with adjacent tooth portions 211 separated by tooth-deficient portions 212. In this embodiment, there are two tooth portions 211 and two tooth-deficient portions 212, with the two tooth portions 211 having the same structure and being evenly arranged circumferentially. When the drive gear 12 engages with the tooth portions 211 of the toothed gear 21, it can drive the toothed gear 21 to transmit power; when the drive gear 12 engages with the tooth-deficient portions 212 of the toothed gear 21, the drive gear 12 and the toothed gear 21 are in a disengaged state.

[0032] Specifically, the unlocking component 22 includes a wheel-shaped portion 221, which engages with the toothed gear 21 as it rotates. A protrusion 222 is formed on the end face of the wheel-shaped portion 221 away from the toothed gear 21. There are two protrusions 222, which are evenly arranged in the circumferential direction.

[0033] As a preferred embodiment, the protrusion 222 is columnar and extends in a direction parallel to the axis. Two protrusions 222 are distributed circumferentially near the edge of the wheel-shaped portion 221.

[0034] The unlocking component 2 also includes an elastic element 23, which acts on the toothed gear 21. When the toothed gear 21 and the drive gear 12 disengage, the elastic element 23 provides a force in the unlocking direction to the toothed gear 21. When locked, the elastic element 23 can push the toothed gear 21 to the position where its teeth 211 are initially engaged with the drive gear 12, so that when unlocking, the drive motor 11 can be started, and the drive gear 12 can drive the toothed gear 21 to rotate to unlock.

[0035] As a preferred technical solution in this embodiment, the elastic member 23 may be, but is not limited to, a torsion spring. The end of the elastic member 23 acts on the toothed gear 21. Correspondingly, a pressure-bearing protrusion 213 is formed on the toothed gear 21 or the unlocking member 22, and the end of the elastic member 23 acts on the pressure-bearing protrusion 213. In this embodiment, the pressure-bearing protrusion 213 is disposed on the side of the toothed gear 21 away from the unlocking member 22 and extends radially along the toothed gear 21. The end of the pressure-bearing protrusion 213 is flush with the toothed portion 212, and the pressure-bearing protrusion 213 does not protrude radially from the toothed portion 212.

[0036] like Figure 5-19 As shown, this embodiment also provides a seat lock, including the aforementioned electric unlocking mechanism and locking assembly 3. The locking assembly 3 includes a main locking plate 31 and a secondary locking plate 32. The main locking plate 31 is hinged and assembled, and a first torsion spring 33 acts on the main locking plate 31. The secondary locking plate 32 is hinged and assembled, and a second torsion spring 34 acts on the secondary locking plate 32. Specifically, the main locking plate 31 has a locking opening 311 extending to the edge, and the secondary locking plate 32 has a limiting protrusion 321 on the side near the main locking plate 31. Under the action of the second torsion spring 34, the secondary locking plate 32 deflects toward the main locking plate 31, and the main locking plate 31 deflects outward under the action of the first torsion spring 33, so that the locking opening 311 opens outward. When locked, the limiting protrusion 321 can block the main locking plate 31, preventing it from deflecting outward. When unlocked, the unlocking member 22 pushes the secondary locking plate 32 open, the limiting protrusion 321 releases its limiting effect on the main locking plate 31, and the main locking plate 31 deflects outward under the action of the first torsion spring 33, thus entering the unlocked state. The force exerted by the second torsion spring 34 on the secondary locking plate 32 is greater than the force exerted by the elastic member 23 on the toothed gear 21.

[0037] As a preferred embodiment, the main lock plate 31 has a vertex 312 formed on the inner side of the lock opening 311, and the limiting protrusion 321 can block the vertex 312 to lock the main lock plate 31. The inner side of the main lock plate 31 has an inner side edge 313. When an unlocking abnormality occurs, the inner side edge 313 can block the protrusion 222 on the unlocking member 22, so that the toothed gear 21 and the drive gear 12 remain in a disengaged state.

[0038] As a preferred technical solution in this embodiment, the first end of the secondary locking plate 32 is hinged, the limiting protrusion 321 is located in the middle of the secondary locking plate 32, and the second end of the secondary locking plate 32 cooperates with the unlocking member 22.

[0039] As a preferred embodiment, the second end of the secondary locking plate 32 has a first mating surface 322 and a second mating surface 323 for mating with the protrusion 222 on the unlocking member 22. The first mating surface 322 is located closer to the hinge point of the secondary locking plate 32 than the second mating surface 323. When the first mating surface 322 and the protrusion 222 are mated, the force exerted by the second torsion spring 34 on the protrusion 222 through the secondary locking plate 32 is opposite to the unlocking direction; when the second mating surface 323 and the protrusion 222 are mated, the force exerted by the second torsion spring 34 on the protrusion 222 through the secondary locking plate 32 is consistent with the unlocking direction.

[0040] The seat lock also includes a lock body shell 4, which includes a middle shell 41, a front cover 42 and a rear cover 43. The electric unlocking mechanism and the locking assembly 3 are assembled on the middle shell 41, and the front cover 42 and the rear cover 43 are respectively assembled on the middle shell 41 to cover the internal structure.

[0041] Specifically, the main locking plate 31, the secondary locking plate 32, and the unlocking component 22 are assembled on one side of the intermediate housing 41; the drive motor 11, the drive gear 12, the gear set 13, the toothed gear 21, and the elastic component 23 are assembled on the other side of the intermediate housing 41. The intermediate housing 41 is a housing structure formed by an intermediate plate and an outer frame. The outer frame has a certain extension length, so that both sides of the intermediate plate and the outer frame form a receiving space, which facilitates the assembly structure. The front cover 42 can be assembled to the front end of the outer frame of the intermediate housing 41; the rear cover 43 can be assembled to the rear end of the outer frame of the intermediate housing 42.

[0042] As a preferred technical solution of this embodiment, the main locking plate 31 and the secondary locking plate 32 are assembled on the intermediate housing 41 and located between the intermediate housing 41 and the front cover 42; the unlocking member 22 is assembled on the intermediate housing 41, and the wheel-shaped part 221 of the unlocking member 22 is embedded in the intermediate plate of the intermediate housing 41. The wheel-shaped part 221 does not protrude from the intermediate plate, and the protrusion 222 protrudes from the intermediate plate of the intermediate housing 41 and is located between the intermediate plate and the front cover 42; the drive motor 11, the drive gear 12, the gear set 13, the tooth-deficient gear 21 and the elastic member 23 are all assembled on the intermediate housing 41 and located between the intermediate housing 41 and the rear cover 43.

[0043] As a preferred technical solution in this embodiment, a lock groove 44 is formed on one side of the lock body shell 4, that is, slots are formed at the same positions of the intermediate shell 41, the front cover 42 and the rear cover 43, which together form the lock groove 44. The lock opening 311 of the main lock plate 31 is located close to the lock groove 44. In the locked state, the auxiliary lock plate 32 limits the main lock plate 31, and the opening of the lock opening 311 of the main lock plate 31 is perpendicular to the opening of the lock groove 44, and is in a closed state. In the unlocked state, the auxiliary lock plate 32 releases the limitation on the main lock plate 31, and the main lock plate 31 swings outward under the action of the first torsion spring 33, and the opening of the lock opening 311 of the main lock plate 31 faces the opening of the lock groove 44, and is in an open state.

[0044] As a preferred embodiment, a reinforcing plate 5 is further provided between the intermediate shell 41 and the front cover 42. The reinforcing plate 5 can be stacked and fixed between the intermediate shell 41 and the front cover 42 to enhance the structural strength. The reinforcing plate 5 can be made of metal.

[0045] Based on the above technical solution, the working principle of the seat lock in this embodiment is as follows: In its initial state, the seat lock is in the following position: Figure 14-16 The locking state is shown. Specifically, the limiting protrusion 321 of the secondary locking plate 32 blocks the vertex 312 of the main locking plate 31; the two protrusions 222 of the unlocking member 22 are set as the first protrusion and the second protrusion, wherein the first protrusion 222 is close to the first mating surface 322 of the secondary locking plate 32, and the second protrusion 222 is close to the second mating surface 323 of the secondary locking plate 32; one tooth 211 of the toothed gear 21 and the drive gear 12 are in the initial meshing state.

[0046] When unlocking, the drive motor 11 drives the drive gear 12 to rotate through the gear set 13. The drive gear 12 can drive the toothed gear 21 to rotate, and the unlocking member 22 rotates accordingly. The first protrusion 222 abuts against the first mating surface 322, pushing the secondary lock plate 32 to overcome the force of the second torsion spring 34 and deflect away from the main lock plate 31, releasing the restriction on the main lock plate 31. The main lock plate 31 can deflect outward under the action of the first torsion spring 33, and the lock opening 311 of the main lock plate 31 opens.

[0047] After the drive gear 12 engages with one tooth 211 of the missing tooth gear 21, the main locking plate 31 is deflected open, and the first protrusion 222 moves to engage with the second mating surface 323. At this time, the drive gear 12 and the missing tooth gear 21 are in a disengaged state, and the drive motor 11 cannot continue to drive to the missing tooth gear 21. The second torsion spring 34 will push the auxiliary locking plate 32 toward the main locking plate 31 to reset until the auxiliary locking plate 32 abuts against the main locking plate 31. During this process, the second mating surface 323 of the auxiliary locking plate 32 pushes the first protrusion 222 to move in the unlocking direction until the second protrusion 222 is blocked by the first mating surface 322 of the auxiliary locking plate 32. During this process, the drive gear 12 and the missing tooth gear 21 remain in a disengaged state. Since the force of the second torsion spring 34 is greater than the force of the elastic element 23, the auxiliary locking plate 32 will limit the position of the second protrusion 222.

[0048] In the unlocked state, as shown in 11-13, the main locking plate 31 deflects outward and opens. The secondary locking plate 32, under the force of the second torsion spring 34, abuts against the main locking plate 31. The second protrusion 222 is blocked and limited by the first mating surface 322 of the secondary locking plate 32. The drive gear 12 and the toothed gear 21 are in a disengaged state. Even if the drive motor 11 is still working, it will not transmit power to the unlocking assembly 2.

[0049] When locked, the latch extends along the lock groove 44 into the lock opening 311 of the main lock plate 31, pushing the main lock plate 31 to deflect against the force of the first torsion spring 33. The main lock plate 31 then pushes the auxiliary lock plate 32 to deflect a small distance against the force of the second torsion spring 34, i.e., the auxiliary lock plate 32 moves a small distance away from the second protrusion 222. At this time, the elastic element 23 can push the toothed gear 21 to rotate in the unlocking direction, so that the next tooth 211 of the toothed gear 21 initially meshes with the drive gear 12 and maintains this state to facilitate transmission engagement during the next unlocking. The second protrusion 222 also moves a small distance towards the auxiliary lock plate 32. Locking is completed when the limiting protrusion 321 of the auxiliary lock plate 32 blocks the apex 312 of the main lock plate 31. The locked state is as follows. Figure 14-16 As shown.

[0050] If, when unlocking the seat lock from its initial state, external force causes the secondary lock plate 32 to deflect but the main lock plate 31 fails to deflect and open, then as follows: Figure 17-19As shown, the second protrusion 222 will be blocked by the inner side 313 of the main locking plate 31, and the second mating surface 323 of the auxiliary locking plate 32 will abut against the first protrusion 222. At this time, the drive gear 12 and the toothless gear 21 are in a dislodged state. During the abnormal unlocking process, the drive motor 11 first drives the toothed gear 21 to rotate through the drive gear 12. After the drive gear 12 engages with one tooth 211 of the toothed gear 21, the secondary lock plate 32 deflects to unlock, but the main lock plate 31 does not deflect to unlock under the action of external force. The first protrusion 222 moves to engage with the second mating surface 323 under the drive of the drive motor 11. At this time, the drive gear 12 and the toothed gear 21 are in a disengaged state, and the drive motor 11 cannot continue to drive to the toothed gear 21. The second torsion spring 34 pushes the secondary lock plate 32 toward the main lock plate 31 to reset. During this process, the second mating surface 323 of the secondary lock plate 32 pushes the first protrusion 222 to move along the unlocking direction until the second protrusion 222 is blocked by the inner side 313 of the main lock plate 31. At this time, the main lock plate 31 blocks the second protrusion 222, and the secondary lock plate 32 abuts against the first protrusion 222 to form a limit. The drive gear 12 and the toothed gear 21 remain in a disengaged state. When the external force is released, the main locking plate 31 can be opened under the action of the first torsion spring 33, and the secondary locking plate 32 pushes the first protrusion 222 to move a distance in the unlocking direction, returning to its original position. Figure 11-13 The unlocked state is shown.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An electrically operated unlocking mechanism for locking assembly (3), characterized in that, include: The drive assembly (1) includes a drive motor (11) and a drive gear (12), wherein the drive motor (11) drives the drive gear (12) to rotate; The unlocking component (2) includes a toothed gear (21) and an unlocking element (22), wherein the unlocking element (22) and the toothed gear (21) rotate together; The unlocking component (22) is located between the main locking plate (31) and the auxiliary locking plate (32) of the locking assembly (3). When unlocking, the drive gear (12) drives the toothed gear (21) to rotate, and the unlocking component (22) pushes the auxiliary locking plate (32) to deflect to release the lock on the main locking plate (31). When the locking assembly (3) is in an abnormal unlocking state where the main locking plate (31) is locked and the auxiliary locking plate (32) is unlocked, the unlocking component (22) is blocked by the main locking plate (31). At this time, the toothed gear (21) and the drive gear (12) are in a disengaged state.

2. The electric unlocking mechanism according to claim 1, characterized in that, The unlocking component (22) includes a wheel-shaped portion (221), which rotates with the toothed gear (21). Two protrusions (222) are formed on the end face of the wheel-shaped portion (221) away from the toothed gear (21). The two protrusions (222) are evenly arranged in the circumferential direction. The unlocking component (22) cooperates with the locking component (3) through the protrusions (222).

3. The electric unlocking mechanism according to claim 2, characterized in that, When unlocking, one of the protrusions (222) pushes the secondary lock plate (32) to sway; In the abnormal unlocking state, one of the protrusions (222) is blocked by the main lock plate (31), and the secondary lock plate (32) abuts against the other protrusion (222); after the abnormal unlocking state is resolved, the main lock plate (31) deflects to unlock, and the secondary lock plate (32) pushes the protrusion (222) to move to the unlocking state.

4. An electric unlocking mechanism according to any one of claims 2-3, characterized in that, The unlocking component (2) also includes an elastic element (23), which acts on the toothless gear (21). When the locking component (3) is locked, the elastic element (23) pushes the toothless gear (21) to the position where its teeth (211) are initially engaged with the drive gear (12). When the locking component (3) is in the unlocked state, under the action of the elastic element (23), the protrusion (222) abuts against the secondary lock plate (32), limiting the toothless gear (21) and the drive gear (12) to be in the disengaged state.

5. The electric unlocking mechanism according to claim 4, characterized in that, A pressure protrusion (213) is formed on the toothed gear (21) or the unlocking member (22), and the elastic member (23) acts on the pressure protrusion (213) so that the toothed gear (21) is subjected to a force in the unlocking direction when it is in a disengaged state with the drive gear (12).

6. The electric unlocking mechanism according to claim 1, characterized in that, The toothed gear (21) includes two tooth sections (211), which are separated by a toothed section (212). The two tooth sections (211) have the same structure and are evenly distributed along the circumference.

7. A seat lock, characterized in that, include: The locking assembly (3) includes a main locking plate (31) and a secondary locking plate (32); The electric unlocking mechanism according to any one of claims 1-6.

8. A seat lock according to claim 7, characterized in that, The main locking plate (31) is hinged together, and a first torsion spring (33) acts on the main locking plate (31) to provide an unlocking force for the main locking plate (31); the secondary locking plate (32) is hinged together, and a second torsion spring (34) acts on the secondary locking plate (32) to provide a deflection force towards the main locking plate (31) for the secondary locking plate (32).

9. A seat lock according to claim 7, characterized in that, The secondary locking plate (32) has a limiting protrusion (321) to limit the main locking plate (31) to be in a locked state, and the end of the secondary locking plate (32) away from the hinge point cooperates with the unlocking member (22).

10. A seat lock according to claim 7, characterized in that, It also includes a lock body shell (4), which includes an intermediate shell (41), a front cover (42) and a rear cover (43). The main lock plate (31), the auxiliary lock plate (32) and the unlocking component (22) are assembled on one side of the intermediate shell (41). The drive motor (11) and the drive gear (12) are assembled on the other side of the intermediate shell (41). The front cover (42) and the rear cover (43) are respectively assembled on the front and rear sides of the intermediate shell (41) to cover the internal structure. A reinforcing plate (5) is also provided between the front cover (42) and the intermediate shell (41).

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