Automobile electric suction lock and unlocking device thereof

Abstract

The application relates to the technical field of automobile parts, and discloses an automobile electric suction lock and an unlocking device thereof, the unlocking device comprising a mounting seat, a poking assembly, a first elastic reset piece, a second elastic reset piece, a locking piece pivoted to the mounting seat through a first pivot, and a lock tongue pivoted to the mounting seat through a second pivot; the lock tongue can move between a locking position and an unlocking position relative to the second pivot; a limiting block is arranged on the locking piece, and the lock tongue is formed with an insertion opening for clamping the limiting block; the first elastic reset piece is connected with the locking piece; the poking assembly is used for applying a first pushing force to the locking piece to make the limiting block disengage from the insertion opening; and the second elastic reset piece is connected with the lock tongue. When the actuator or other parts of the electric suction lock are faulty, the poking assembly can be manually driven, so that the manual opening of the automobile tail door is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and in particular to an automobile electric suction lock and an unlocking device thereof. Background Art

[0002] The increasing popularity of automobiles has brought significant convenience to people's lives and work. Consequently, people's growing demand for automobiles has also placed higher demands on them. Among these, tailgates have evolved from traditional manual opening and closing to automatic opening and closing. These doors are connected to the vehicle body via an electric push rod, which automatically pushes the tailgate open. Furthermore, electric locks are installed on the tailgate, allowing it to automatically engage and lock with the vehicle body, improving both convenience and safety.

[0003] Most traditional electric locks use actuators to control the locks to achieve locking and unlocking actions, and most electric locks have complex structures. In order to save internal space of the electric locks, the actuators and other components are designed to be linked.

[0004] However, for traditional electric locks, when a failure occurs during the closing process, that is, when the actuator or other components of the traditional electric lock fail, the electric lock cannot be electrically unlocked due to the linkage adopted in its internal structure. At the same time, the traditional electric lock is not equipped with a manual unlocking function, resulting in the tailgate of the car being unable to open normally when the electric lock fails. Summary of the Invention

[0005] The purpose of the present invention is to avoid the situation where the tailgate of a car cannot be opened due to failure of an actuator or other components.

[0006] To achieve the above objectives, the present invention provides an unlocking device for an electric lock of an automobile, comprising: a mounting base, a toggle assembly, a first elastic return member, a second elastic return member, a locking member pivotally connected to the mounting base via a first pivot, and a locking tongue pivotally connected to the mounting base via a second pivot; the first pivot and the second pivot are arranged parallel to each other; the locking tongue is movable relative to the second pivot between a locked position and an unlocked position;

[0007] The locking member is provided with a limiting block, and the locking tongue is formed with an insertion opening for the limiting block to be clamped; when the limiting block is clamped in the insertion opening, the locking member and the locking tongue are relatively fixed to limit the locking member to the locking position;

[0008] The first elastic return member is connected to the locking member. When the locking member is limited to the locked position, the first elastic return member is used to apply a first elastic force to the locking member to lock the limit block in the insertion port; the toggle assembly is used to apply a first thrust to the locking member to disengage the limit block from the insertion port.

[0009] The second elastic reset member is connected to the lock tongue. When the limit block is separated from the insertion port, the second elastic reset member is used to apply a second elastic force to the lock tongue to move the lock tongue from the locked position to the unlocked position.

[0010] Optionally, the toggle assembly includes: a first connecting rod, a second connecting rod, a third connecting rod, and a hand toggle member connected to the first connecting rod; a portion of the hand toggle member is located outside the mounting base; a first end of the first connecting rod is pivotally connected to the mounting base via a third pivot; a second end of the first connecting rod is pivotally connected to the first end of the second connecting rod via a fourth pivot; a second end of the second connecting rod is pivotally connected to the first end of the third connecting rod via a fifth pivot; a middle portion of the third connecting rod is pivotally connected to the mounting base via a sixth pivot; a toggle member for applying the first thrust to the locking member is provided on the second end of the third connecting rod;

[0011] Wherein, the third pivot, the fourth pivot, the fifth pivot, and the sixth pivot are arranged in parallel;

[0012] The movement trajectory of the locking member partially overlaps with the movement trajectory of the toggle member; when driving the first connecting rod to rotate counterclockwise around the third pivot, the first connecting rod drives the third connecting rod to rotate counterclockwise around the sixth pivot through the second connecting rod, so that the toggle member applies the first thrust to the locking member.

[0013] Optionally, it also includes: an upper cover; the upper cover is arranged on the mounting seat, and there is a cavity between the upper cover and the mounting seat; the toggle assembly, the first elastic return member, the second elastic return member, the locking member, and the lock tongue are located in the cavity; the upper cover has an opening connected to the cavity; part of the toggle member extends from the opening to the outside of the upper cover.

[0014] Optionally, the first elastic return member is a first torsion spring; the first torsion spring is sleeved on the first pivot; a first slot is provided on the locking member, and the first slot and the limit block are respectively located on opposite sides of the locking member; one of the torsion arms of the first torsion spring is clamped in the first slot, and the other torsion arm of the first torsion spring is fixedly connected to the upper cover.

[0015] Optionally, the second elastic return member is a second torsion spring; the second torsion spring is sleeved on the second pivot; a second slot is provided on the lock tongue, and the second slot and the insertion port are respectively located on opposite sides of the lock tongue; one of the torsion arms of the second torsion spring is clamped in the second slot, and the other torsion arm of the second torsion spring is fixedly connected to the upper cover.

[0016] Optionally, the invention further comprises: a fourth connecting rod, a fifth connecting rod, and a transmission block connected to the lock tongue; a first shifting block for shifting is provided at the first end of the fourth connecting rod; a middle portion of the fourth connecting rod is pivotally connected to the mounting seat via a seventh pivot; a second end of the fourth connecting rod is pivotally connected to the first end of the fifth connecting rod via an eighth pivot; a second end of the fifth connecting rod is provided with a second shifting block for pushing the transmission block;

[0017] When the fourth connecting rod is driven to rotate counterclockwise around the seventh pivot, the fifth connecting rod drives the second shift block to move along a predetermined path, and the second shift block applies a second thrust to the transmission block to move the lock tongue from the unlocked position to the locked position; the movement trajectory of the transmission block partially overlaps with the predetermined path of the second shift block; and the second elastic force is in the opposite direction to the second thrust.

[0018] Optionally, the third pivot, the fourth pivot, the fifth pivot, the sixth pivot, the seventh pivot, and the eighth pivot are arranged in parallel.

[0019] Optionally, the second shift block includes: a first push plate and a first slider; the first push plate is fixedly connected to the second end of the fifth connecting rod; the first push plate is formed with a avoidance groove adapted to the transmission block; the first slider is fixedly connected to the first push plate; the inner wall of the upper cover is provided with a sliding groove along a predetermined path; the first slider is slid in the sliding groove.

[0020] Optionally, the shifting assembly further comprises: a third shifting block for pushing the first push plate; the third shifting block is fixedly connected to the first connecting rod; the predetermined path partially overlaps with the motion trajectory of the third shifting block;

[0021] When the first connecting rod is driven to rotate counterclockwise around the third pivot, the first connecting rod drives the third shift block to rotate counterclockwise around the third pivot, so that the third shift block applies a third thrust to the first push plate.

[0022] An automobile electric suction lock comprises the above-mentioned unlocking device for the automobile electric suction lock.

[0023] Compared with the prior art, the electric lock and unlocking device for automobiles according to the embodiment of the present invention have the following advantages:

[0024] The present invention can realize automatic opening of the tailgate of a car by driving the toggle assembly through the actuator when there is no fault in the actuator or other components of the electric lock. In addition, when there is a fault in the actuator or other components of the electric lock, the toggle assembly can be manually driven to realize manual opening of the tailgate of the car, thereby solving the problem of being unable to unlock the car electrically and manually due to a fault in the electric lock. When the actuator or other components of the electric lock fail, the electric lock can still be manually opened in the car to avoid the situation where the tailgate of the car cannot be opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of an embodiment of the present invention (the lock tongue is in the unlocked position);

[0026] Figure 2 Schematic diagram of the structure of the fourth connecting rod and the fifth connecting rod in an embodiment of the present invention (the structure of the toggle assembly is omitted);

[0027] Figure 3 is a schematic structural diagram of the fourth connecting rod and the fifth connecting rod in an embodiment of the present invention;

[0028] Figure 4 is a schematic structural diagram of a locking member in an embodiment of the present invention;

[0029] Figure 5 2 is a schematic structural diagram of a lock tongue in an embodiment of the present invention;

[0030] Figure 6 : is a schematic structural diagram of the toggle assembly in an embodiment of the present invention (the structures of the fourth connecting rod and the fifth connecting rod are omitted);

[0031] Figure 7 Schematic diagram of the connection relationship between the upper cover, the fourth connecting rod, and the fifth connecting rod in an embodiment of the present invention;

[0032] Figure 8 2 is a schematic structural diagram of an embodiment of the present invention (the lock tongue is in the locked position);

[0033] Figure 9 yes Figure 8 A is an enlarged schematic diagram;

[0034] Figure 10 2 is a schematic structural diagram of a toggle assembly according to an embodiment of the present invention;

[0035] Figure 11 Schematic diagram of the positional relationship among the upper cover, the mounting base, and the toggle member in an embodiment of the present invention.

[0036] In the figure, 1, mounting base; 2, toggle assembly; 201, first connecting rod; 202, second connecting rod; 203, third connecting rod; 204, hand toggle member; 3, first elastic return member; 4, second elastic return member; 5, first pivot; 6, locking member; 61, first slot; 7, second pivot; 8, lock tongue; 81, insertion port; 82, second slot; 9, limit block; 10, third pivot; 11, fourth pivot; 12, first Fifth pivot; 13. Sixth pivot; 14. Driving member; 15. Fourth connecting rod; 16. Fifth connecting rod; 17. Transmission block; 18. First shift block; 19. Seventh pivot; 20. Eighth pivot; 21. Second shift block; 211. First push plate; 2111. Avoidance groove; 212. First slider; 22. Upper cover; 221. Slide groove; 23. Third shift block; 24. First thrust; 25. Second thrust; 26. Third thrust. DETAILED DESCRIPTION

[0037] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0038] First, it should be noted that the directions such as top, bottom, upward, and downward mentioned in this document are defined relative to the directions in the respective drawings. They are relative concepts and can therefore vary depending on the position and usage conditions. Therefore, these or other directions should not be understood as limiting terms.

[0039] It should be noted that the term "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality.

[0040] In addition, it should be pointed out that any single technical feature described or implied in the embodiments of this document, or any single technical feature shown or implied in the accompanying drawings, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application that are not directly mentioned in this document.

[0041] It should also be understood that, while the terms "first," "second," and the like are used herein to describe various types of information, such information should not be limited to these terms; these terms are merely used to distinguish information of the same type from one another. For example, "first" information could also be referred to as "second" information, and similarly, "second" information could also be referred to as "first" information without departing from the scope of this application.

[0042] It should be noted that in different drawings, the same reference numerals denote the same or substantially the same components.

[0043] like Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 ,as well as Figure 9 As shown, an unlocking device for an automobile electric suction lock according to a preferred embodiment of the present invention includes: a mounting base 1, a toggle assembly 2, a first elastic return member 3, a second elastic return member 4, a locking member 6 pivoted to the mounting base 1 via a first pivot 5, and a lock tongue 8 pivoted to the mounting base 1 via a second pivot 7; the first pivot 5 and the second pivot 7 are arranged parallel to each other; the lock tongue 8 can move between a locked position and an unlocked position relative to the second pivot 7.

[0044] A limit block 9 is provided on the locking member 6, and the locking tongue 8 is formed with an insertion port 81 for the limit block 9 to be clamped; when the limit block 9 is clamped in the insertion port 81, the locking member 6 and the locking tongue 8 are relatively fixed to limit the locking member 6 to the locked position.

[0045] The first elastic return member 3 is connected to the locking member 6. When the locking member 6 is limited to the locking position, the first elastic return member 3 is used to apply a first elastic force to the locking member 6 so that the limit block 9 is stuck in the insertion port 81; the toggle assembly 2 is used to apply a first thrust 24 to the locking member 6 so that the limit block 9 is disengaged from the insertion port 81.

[0046] The second elastic return member 4 is connected to the lock tongue 8. When the limit block 9 is separated from the insertion port, the second elastic return member 4 is used to apply a second elastic force to the lock tongue 8 to move the lock tongue 8 from the locked position to the unlocked position.

[0047] Specifically, the first elastic return member 3 and the second elastic return member 4 are located on the same plane, and in a direction perpendicular to the plane, the spiral direction of the first elastic force is opposite to the spiral direction of the second elastic force; when the first elastic force and the first thrust 24 are on the same straight line, the direction of the first elastic force is opposite to that of the first thrust 24.

[0048] The mounting base 1 of the present application is mounted on a car tailgate. In actual use, a hook groove is provided on a lock tongue 8, and a hook lock is provided on the trunk of the vehicle body. When the lock tongue 8 is in the locked position, the hook lock is locked with the hook groove, thereby realizing automatic closing of the car tailgate. In addition, when the lock tongue 8 is in the unlocked position, the hook lock is separated from the hook groove, thereby realizing automatic opening of the car tailgate. In an embodiment of the present invention, the locking member 6 is pivoted to the side of the mounting base 1 via a first pivot 5, and the lock tongue 8 is pivoted to the side of the mounting base 1 via a second pivot 7. The locking member 6 and the lock tongue 8 are arranged side by side, and the first pivot 5 and the second pivot 7 are arranged in parallel, so that the locking member 6 and the lock tongue 8 can rotate around the first pivot 5 and the second pivot 7, respectively.

[0049] The first elastic return member 3 is connected to the locking member 6 and is used to apply a first elastic force to the locking member 6 so that the limiting block 9 is positioned within the insertion opening 81. That is, the elastic force of the first elastic return member 3 causes the limiting block 9 of the locking member 6 to be positioned within the insertion opening 81 of the lock tongue 8, thereby securing the lock tongue 8 and the locking member 6 relative to each other. In this embodiment of the present invention, the relatively fixed position is defined as the locking position of the lock tongue 8. When the limiting block 9 is positioned within the insertion opening 81 of the lock tongue 8, the lock tongue 8 is positioned in the locked position, thereby achieving a fixed locking connection between the hook lock and the hook groove. Furthermore, under the elastic force of the first elastic return member 3, the locking member 6 approaches and contacts the lock tongue 8, thereby securing the locking member 6 and the lock tongue 8 relative to each other. This prevents the lock tongue 8 from automatically unlocking even when the vehicle door shakes. The first thrust 24 is in the opposite direction to the first elastic force. When the first thrust 24 is greater than the first elastic force, the toggle assembly 2 applies the first thrust 24 to the locking member 6 to disengage the limit block 9 from the insertion port 81, so that the lock tongue 8 can move freely. The toggle assembly 2 can be driven both manually and electrically.

[0050] When the limit block 9 is separated from the insertion port 81, so that the lock tongue 8 can move freely, the elastic force of the second elastic reset member 4 applies a second elastic force to the lock tongue 8 to move the lock tongue 8 from the locked position to the unlocked position, that is, when the limit block 9 is separated from the insertion port 81 of the lock tongue 8, the lock tongue 8 is moved from the locked position to the unlocked position under the elastic force of the second elastic reset member 4, thereby realizing the automatic opening of the car tailgate. In this application, the toggle assembly 2 can be driven manually and electrically at the same time, so that when the actuator or other components of the electric suction lock are not faulty, the present invention can drive the toggle assembly 2 by the actuator to realize the automatic opening of the car tailgate, and when the actuator or other components of the electric suction lock are faulty, the toggle assembly 2 can be manually driven to realize the manual opening of the car tailgate, so that the present invention solves the problem of being unable to unlock electrically and manually due to a fault of the electric suction lock, and enables the electric suction lock to be manually opened in the car when the actuator or other components are faulty to avoid the situation where the car tailgate cannot be opened.

[0051] Furthermore, the mounting base 1 includes a first mounting plate and a second mounting plate, which are arranged at an angle to the second mounting plate. The angle is adapted to the tailgate of the vehicle. This angle arrangement enables the unlocking device of the electric vehicle lock of the present application to be more compact, thereby avoiding excessive installation space occupation. The pull assembly is arranged on the first mounting plate, and the locking member 6 and the lock tongue 8 are arranged on the second mounting plate.

[0052] Specifically, the locking member 6 is a strip-shaped locking member 6, wherein the first end of the strip-shaped locking member 6 is pivotally connected to the mounting base 1 through the first pivot 5, and the limit block 9 is located between the first end and the second end of the locking member 6, and the first thrust 24 applied by the toggle assembly 2 acts on the second end of the locking member 6.

[0053] For one possible design, see Figure 11 The present invention further includes: an upper cover 22; the upper cover 22 is mounted on the mounting base 1, and a cavity is defined between the upper cover 22 and the mounting base 1; the toggle assembly 2, the first elastic return member 3, the second elastic return member 4, the locking member 6, and the lock tongue 8 are located within the cavity. The upper cover 22 has an opening communicating with the cavity; a portion of the toggle assembly 2 extends from the opening to the exterior of the upper cover, enabling operation of the toggle assembly 2 from the exterior of the upper cover, thereby achieving a manual unlocking function.

[0054] For one possible design, see Figure 1 、 Figure 6 、 Figure 8 、 Figure 10 The toggle assembly 2 includes: a first connecting rod 201, a second connecting rod 202, a third connecting rod 203, and a hand-operated member 204 connected to the first connecting rod 201. Part of the hand-operated member extends to the outside of the mounting base 1. The first end of the first connecting rod 201 is pivotally connected to the mounting base 1 through a third pivot 10. The second end of the first connecting rod 201 is pivotally connected to the first end of the second connecting rod 202 through a fourth pivot 11. The second end of the second connecting rod 202 is pivotally connected to the first end of the third connecting rod 203 through a fifth pivot 12. The middle part of the third connecting rod 203 is pivotally connected to the mounting base 1 through a sixth pivot 13.

[0055] A toggle member 14 for applying the first thrust 24 to the second end of the locking member 6 is provided on the second end of the third connecting rod 203, that is, the toggle member 14 applies the first thrust 24 to the limiting block 9 to disengage from the insertion port 81. The third pivot 10, the fourth pivot 11, the fifth pivot 12, and the sixth pivot 13 are arranged in parallel. The motion trajectory of the locking member 6 partially overlaps with the motion trajectory of the toggle member 14, so that the toggle member 14 can push the locking member 6. When the first connecting rod 201 is driven to rotate counterclockwise around the third pivot 10, the first connecting rod 201 drives the third connecting rod 203 to rotate counterclockwise around the sixth pivot 13 through the second connecting rod 202, so that the toggle member 14 applies the first thrust 24 to the locking member 6, and the first thrust 24 causes the limiting block 9 to disengage from the insertion port 81. To unlock, manually depress the hand-activated member 204, causing the first link 201 to rotate counterclockwise relative to the third pivot 10, thereby driving the second link 202 to move leftward. Since the middle portion of the third link 203 is pivotally connected to the mounting base 1 via the sixth pivot 13, counterclockwise rotation of the first end of the third link 203 drives the second end of the third link 203 to rotate counterclockwise, thereby driving the toggle member 14 to rotate counterclockwise. The second end of the locking member 6 is located on the counterclockwise rotation trajectory of the toggle member 14, so manually depressing the hand-activated member 204 drives the second end of the locking member 6 to rotate clockwise, thereby disengaging the stopper 9 from the insertion opening 81.

[0056] Among them, see Figure 11 The hand-operated member extends to the outside of the mounting base 1, so that the user can manually unlock the lock tongue 8 and the locking member 6 by turning the hand-operated member extending to the outside of the mounting base 1. Specifically, the hand-operated member extends to the outside of the cavity of the upper cover 22 and the mounting base 1.

[0057] In a possible design, the present invention also includes a third torsion spring, which is sleeved on the third pivot 10, and one of the torsion arms of the third torsion spring is fixedly connected to the upper cover 22, and the other torsion arm of the third torsion spring is clamped on the side of the first connecting rod 201 away from the third connecting rod 203, so that when the hand-operated member 204 is not acted upon by external force, the torsion force of the third torsion spring drives the first connecting rod 201 to rotate clockwise, and at the same time causes the second end of the third connecting rod 203 to rotate clockwise, thereby causing the toggle member 14 to break away from the contact with the second end of the locking member 6, thereby achieving the effect of automatic retraction after each unlocking is completed.

[0058] Further, see Figure 1 、 Figure 2 ,as well as Figure 4The first elastic return member 3 is a first torsion spring, which is sleeved on the first pivot 5. A first slot 61 is defined on the locking member 6. The first slot 61 and the limiting block 9 are located on opposite sides of the locking member 6, that is, the first slot 61 is located on the side of the locking member 6 away from the lock tongue 8. One of the torsion arms of the first torsion spring is engaged in the first slot 61, and the other torsion arm of the first torsion spring is fixedly connected to the upper cover 22. As a result, under the elastic torsion force of the first torsion spring, the second end of the locking member 6 always tends to move toward the lock tongue 8, thereby enabling the limiting block 9 to be engaged in the insertion opening 81, thereby improving the convenience and reliability of the cooperation between the lock tongue 8 and the locking member 6.

[0059] Further, see Figure 1 、 Figure 2 ,as well as Figure 5 The second elastic return member 4 is a second torsion spring, which is sleeved on the second pivot 7. A second engaging slot 82 is defined on the lock tongue 8. The second engaging slot 82 and the insertion opening 81 are located on opposite sides of the lock tongue 8, that is, the second engaging slot 82 is located on the side of the lock tongue 8 away from the locking member 6. One of the torsion arms of the second torsion spring is engaged in the second engaging slot 82, and the other torsion arm of the second torsion spring is fixedly connected to the upper cover 22. As a result, under the elastic torsion force of the second torsion spring, the lock tongue 8 always tends to move from the locked position to the unlocked position. When the limit block 9 is separated from the insertion opening 81, the lock tongue 8 is automatically unlocked under the torsion force of the second torsion spring.

[0060] The arrangement of the first torsion spring and the second torsion spring makes the reset directions of the lock tongue 8 and the locking member 6 opposite under the action of torsion, so that when the locking member 6 contacts the lock tongue 8 and the limit block 9 is inserted into the insertion port 81, the lock tongue 8 is in the locked position. When the lock tongue 8 needs to be moved to the unlocked position, it is only necessary to toggle the second end of the locking member 6 in the direction opposite to the reset elastic torsion of the first torsion spring by toggling the assembly 2.

[0061] One possible design, see Figure 1 、 Figure 2 、 Figure 3 ,as well as Figure 7The present invention also includes: a fourth connecting rod 15, a fifth connecting rod 16, and a transmission block 17 connected to the lock tongue 8. The first end of the fourth connecting rod 15 is provided with a first shifting block 18 for shifting. The middle part of the fourth connecting rod 15 is pivotally connected to the mounting base 1 through a seventh pivot 19. The second end of the fourth connecting rod 15 is pivotally connected to the first end of the fifth connecting rod 16 through an eighth pivot 20. The second end of the fifth connecting rod 16 is provided with a second shifting block 21 for applying a second thrust 25 to the transmission block 17 to move the lock tongue 8 from the unlocked position to the locked position; the movement trajectory of the transmission block 17 partially overlaps with the predetermined path of the second shifting block 21, so that the second shifting block 21 can push the transmission block 17.

[0062] When the fourth link 15 is driven to rotate counterclockwise about the seventh pivot 19, the fourth link 15 drives the fifth link 16 to move along a predetermined path, and the fifth link 16 drives the second shift block 21 to move along a predetermined path. The second shift block 21 applies a second thrust 25 to the transmission block 17. The second thrust 25 moves the lock tongue 8 from the unlocked position to the locked position, thereby realizing the locking function of the electric lock. The second elastic force is in the opposite direction to the second thrust 25. When the second thrust 25 is greater than the second elastic force, the second thrust 25 drives the lock tongue 8 to rotate counterclockwise about the second pivot 7.

[0063] The fourth connecting rod 15 and the fifth connecting rod 16 work independently, and the shifting assembly 2 also works independently.

[0064] Specifically, see Figure 3 and Figure 7 The second pull block further includes: a first push plate 211 and a first slider 212. The first push plate 211 is fixedly connected to the second end of the fifth connecting rod 16. The first push plate 211 is formed with an avoidance groove 2111 adapted to the transmission block 17, and the transmission block 17 is located on the movement trajectory of the first push plate 211. During use, the avoidance groove 2111 of the first push plate 211 is engaged with the transmission block 17, so that the movement of the first push plate 211 can push the transmission block 17 to move counterclockwise around the second pivot 7, thereby driving the lock tongue 8 to rotate counterclockwise, so that the lock tongue 8 moves from the unlocked position to the locked position, thereby realizing the locking function.

[0065] The first slider 212 is fixedly connected to the first push plate 211. A slot 221 is defined on the inner wall of the upper cover 22 along a predetermined path. The first slider 212 slides within the slot 221. The slot 221, defined along the predetermined path, aligns with the motion trajectory of the second shift block 21. The first slider 212 slides within the slot 221. The slot 221 guides the first push plate 211, ensuring that the motion trajectory of the transmission block 17 overlaps with that of the first push plate 211.

[0066] Among them, see Figure 7 , the predetermined path is arranged in an arc shape.

[0067] Specifically, the fourth connecting rod 15 is disposed adjacent to the manual shift member 204 .

[0068] Furthermore, an electric lever is provided between the first shift block 18 and the manual shift member 204 , which is used to receive external instructions to shift the manual shift member 204 to the left to achieve electric unlocking, or to shift the first shift block 18 of the fourth connecting rod 15 to the right to achieve electric locking.

[0069] Among them, the electric rod has a variety of implementation structures. For example, a gear is provided at the end of the electric rod, and the axis of the gear is connected to the motor. Driven by the motor, the gear is driven forward or reverse, thereby realizing the left and right movement of the electric rod. Of course, there can also be other structures to realize the above functions, which are not limited here.

[0070] Further, see Figure 1 、 Figure 6 ,as well as Figure 10 The shifting assembly 2 further includes a third shifting block 23 for pushing the first push plate 211. The third shifting block 23 is fixedly connected to the first connecting rod 201. The predetermined path partially overlaps with the motion trajectory of the third shifting block 23.

[0071] When the first connecting rod 201 is driven to rotate counterclockwise around the third pivot 10, the first connecting rod 201 drives the third shift block 23 to rotate counterclockwise around the third pivot 10, so that the third shift block 23 applies a third thrust 26 to the first push plate 211. The third thrust 26 is used to drive the second shift block 21 to disengage from the transmission block 17 and move the second shift block 21 away from the transmission block 17, thereby preventing the second shift block 21 from being stuck with the transmission block 17 and causing the electric lock to fail to work. That is, the present application uses the setting of the toggle assembly 2 to enable the third connecting rod 203 of the toggle block assembly to drive the limit block 9 of the locking member 6 to disengage from the insertion port 81. In order to avoid the second toggle block 21 from being stuck with the transmission block 17, the third toggle block 23 on the first connecting rod 201 drives the second toggle block 21 to disengage from the transmission block 17, thereby driving all components that can jam the lock tongue 8 to disengage from the lock tongue 8, thereby achieving that when a component of the electric lock fails, the lock tongue 8 can be manually restored from the locked position to the unlocked position.

[0072] The directions of the first thrust 24, the second thrust 25, and the third thrust 26 are shown in FIG. Figure 1 middle.

[0073] An embodiment of the present invention also provides an automobile electric lock, which includes the above-mentioned unlocking device of the automobile electric lock, thereby realizing automatic closing of the automobile tailgate, and enabling the electric lock to still be manually opened in the car when the actuator or other components fail to function, to avoid the situation where the automobile tailgate cannot be opened.

[0074] The working process of the present invention is as follows: when the unlocked state is switched to the locked state, when the fourth connecting rod 15 is driven to rotate counterclockwise around the seventh pivot 19, the fourth connecting rod 15 drives the fifth connecting rod 16 to move along a predetermined path, and the fifth connecting rod 16 drives the second shift block 21 to move along a predetermined path, and the second shift block 21 applies a second thrust 25 to the transmission block 17, and the second thrust 25 causes the lock tongue 8 to move from the unlocked position to the locked position. The locking member 6 approaches and contacts the lock tongue 8 under the elastic force of the first elastic reset member 3, and the limit block 9 is inserted into the insertion port 81, so that the locking member 6 and the lock tongue 8 are relatively fixed. When the locked state is switched to the unlocked state, when the first link 201 is manually or electrically driven to rotate counterclockwise around the third pivot 10, the first link 201 drives the third link 203 to rotate counterclockwise around the sixth pivot 13 through the second link 202, so that the toggle member 14 applies the first thrust 24 to the locking member 6, and the first thrust 24 causes the limit block 9 to disengage from the insertion port 81. At the same time, the first link 201 drives the third toggle block 23 to rotate counterclockwise around the third pivot 10, so that the third toggle block 23 applies a third thrust 26 to the first push plate 211. The third thrust 26 is used to drive the second toggle block 21 to disengage from the transmission block 17, and to move the second toggle block 21 away from the transmission block 17, and the lock tongue 8 returns from the locked position to the unlocked position under the action of the second elastic return member 4.

[0075] In summary, an embodiment of the present invention provides an automobile electric lock and an unlocking device thereof, which can drive the toggle assembly 2 through the actuator when the actuator or other components of the electric lock are not faulty, thereby realizing automatic opening of the automobile tailgate. When the actuator or other components of the electric lock fail, the toggle assembly 2 can be manually driven to realize manual opening of the automobile tailgate. The present invention solves the problem of being unable to unlock the car electrically and manually due to a failure of the electric lock, and enables the electric lock to be manually opened in the car when the actuator or other components fail, thereby avoiding the situation where the automobile tailgate cannot be opened.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An unlocking device for an automobile electric lock, characterized in that: include: A mounting base, a toggle assembly, a first elastic return member, a second elastic return member, a locking member pivotally connected to the mounting base via a first pivot, and a locking tongue pivotally connected to the mounting base via a second pivot; the first pivot and the second pivot are arranged parallel to each other; the locking tongue is movable relative to the second pivot between a locked position and an unlocked position; The locking member is provided with a limiting block, and the locking tongue is formed with an insertion opening for the limiting block to be clamped; When the limiting block is clamped in the insertion port, the locking member and the locking tongue are relatively fixed to limit the locking member to the locking position; The first elastic return member is connected to the locking member. When the locking member is limited to the locked position, the first elastic return member is used to apply a first elastic force to the locking member to lock the limit block in the insertion port; the toggle assembly is used to apply a first thrust to the locking member to disengage the limit block from the insertion port. The second elastic return member is connected to the lock tongue, and when the limit block is separated from the insertion port, the second elastic return member is used to apply a second elastic force to the lock tongue to move the lock tongue from the locked position to the unlocked position; The toggle assembly includes: a first connecting rod, a second connecting rod, a third connecting rod, and a hand toggle member connected to the first connecting rod; a portion of the hand toggle member is located outside the mounting base; a first end of the first connecting rod is pivotally connected to the mounting base via a third pivot; a second end of the first connecting rod is pivotally connected to the first end of the second connecting rod via a fourth pivot; a second end of the second connecting rod is pivotally connected to the first end of the third connecting rod via a fifth pivot; a middle portion of the third connecting rod is pivotally connected to the mounting base via a sixth pivot; a toggle member for applying the first thrust to the locking member is provided at the second end of the third connecting rod; Wherein, the third pivot, the fourth pivot, the fifth pivot, and the sixth pivot are arranged in parallel; The motion trajectory of the locking member partially overlaps with the motion trajectory of the toggle member; when the first connecting rod is driven to rotate counterclockwise around the third pivot, the first connecting rod drives the third connecting rod to rotate counterclockwise around the sixth pivot via the second connecting rod, so that the toggle member applies the first thrust to the locking member; The unlocking device of the automobile electric lock further comprises: an upper cover; the upper cover is disposed on the mounting seat, and a cavity is defined between the upper cover and the mounting seat; the toggle assembly, the first elastic return member, the second elastic return member, the locking member, and the lock tongue are located in the cavity; the upper cover has an opening communicating with the cavity; a portion of the manual toggle member extends from the opening to the exterior of the upper cover; The first elastic return member is a first torsion spring; the first torsion spring is sleeved on the first pivot; a first slot is defined on the locking member, and the first slot and the limit block are located on opposite sides of the locking member; one torsion arm of the first torsion spring is clamped in the first slot, and the other torsion arm of the first torsion spring is fixedly connected to the upper cover; The second elastic return member is a second torsion spring; the second torsion spring is sleeved on the second pivot; a second slot is provided on the lock tongue, and the second slot and the insertion port are respectively located on opposite sides of the lock tongue; one of the torsion arms of the second torsion spring is clamped in the second slot, and the other torsion arm of the second torsion spring is fixedly connected to the upper cover.

2. The unlocking device for an electric vehicle lock according to claim 1, characterized in that: The lock further comprises: a fourth connecting rod, a fifth connecting rod, and a transmission block connected to the lock tongue; a first shifting block for shifting is provided at a first end of the fourth connecting rod; a middle portion of the fourth connecting rod is pivotally connected to the mounting seat via a seventh pivot; a second end of the fourth connecting rod is pivotally connected to the first end of the fifth connecting rod via an eighth pivot; a second shifting block for pushing the transmission block is provided at a second end of the fifth connecting rod; When the fourth connecting rod is driven to rotate counterclockwise around the seventh pivot, the fifth connecting rod drives the second shift block to move along a predetermined path, and the second shift block applies a second thrust to the transmission block to move the lock tongue from the unlocked position to the locked position; the movement trajectory of the transmission block partially overlaps with the predetermined path of the second shift block; and the second elastic force is in the opposite direction to the second thrust.

3. The unlocking device for an electric vehicle lock according to claim 2, characterized in that: The third pivot, the fourth pivot, the fifth pivot, the sixth pivot, the seventh pivot, and the eighth pivot are arranged in parallel.

4. The unlocking device for an automobile electric lock according to claim 2, characterized in that: The second shift block includes: a first push plate and a first slider; the first push plate is fixedly connected to the second end of the fifth connecting rod; the first push plate is formed with an avoidance groove adapted to the transmission block; the first slider is fixedly connected to the first push plate; the inner wall of the upper cover is provided with a sliding groove along a predetermined path; the first slider is slidably arranged in the sliding groove.

5. The unlocking device for an automobile electric lock according to claim 4, characterized in that: The shifting assembly further includes: a third shifting block for pushing the first push plate; the third shifting block is fixedly connected to the first connecting rod; the predetermined path partially overlaps with the motion trajectory of the third shifting block; When the first connecting rod is driven to rotate counterclockwise around the third pivot, the first connecting rod drives the third shift block to rotate counterclockwise around the third pivot, so that the third shift block applies a third thrust to the first push plate.

6. An electric suction lock for automobile, characterized in that: include: An unlocking device for an automobile electric lock as claimed in any one of claims 1 to 5.

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