CN116265682A - Electric suction lock for automobile and unlocking device thereof - Google Patents

Abstract

The invention relates to the technical field of automobile parts, and discloses an automobile electric suction lock and an unlocking device thereof, wherein the unlocking device comprises: the device comprises a mounting seat, a toggle assembly, a first elastic reset piece, a second elastic reset piece, a locking piece pivoted on the mounting seat through a first pivot and a lock tongue pivoted on 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; the locking piece is provided with a limiting block, and the lock tongue is provided with an inserting port for clamping the limiting block; the first elastic resetting piece is connected with the locking piece; the poking assembly is used for applying a first pushing force to the locking piece so as to enable the limiting block to be separated from the insertion port; the second elastic reset piece is connected with the lock tongue. When the actuator or other parts of the electric suction lock fail, the manual opening of the automobile tail door can be realized by manually driving the toggle assembly.

Description

Electric suction lock for automobile and unlocking device thereof

Technical Field

The invention relates to the technical field of automobile parts, in particular to an automobile electric suction lock and an unlocking device thereof.

Background

At present, with the continuous popularization of automobiles, great convenience is brought to the work and life of people, and correspondingly, the ever-increasing use demands of people also put forward higher demands on automobiles. The automobile tail door is changed into an automatic door opening and closing mode through a traditional manual door opening and closing mode, namely the automobile tail door is connected with an automobile body through an electric push rod, the pushing force of the electric push rod can automatically push the automobile tail door open, meanwhile, an electric suction lock is further arranged on the automobile tail door, the electric tail door can be automatically closed and locked with the automobile body in a suction mode, and therefore convenience and safety of automobile use can be improved.

The traditional electric suction lock realizes locking and unlocking actions mostly by controlling the electric suction lock through the actuator, and the structure of the electric suction lock is complex, so that the internal space of the electric suction lock is saved, and the actuator and other parts are in linkage design.

However, for the traditional electric suction lock, after the traditional electric suction lock fails in the suction process, namely when an actuator or other parts of the traditional electric suction lock fail, the electric suction lock cannot be unlocked by the aid of the internal structure of the traditional electric suction lock in a linkage mode, and meanwhile, the traditional electric suction lock is not provided with a manual unlocking function, so that a narrow door of an automobile cannot be opened normally under the condition of failure of the electric suction lock.

Disclosure of Invention

The purpose of the invention is that: the situation that the tail door of the automobile cannot be opened due to the failure of an actuator or other parts is avoided.

In order to achieve the above object, the present invention provides an unlocking device of an electric suction lock for an automobile, comprising: the device comprises a mounting seat, a toggle assembly, a first elastic reset piece, a second elastic reset piece, a locking piece pivoted on the mounting seat through a first pivot and a lock tongue pivoted on the mounting seat through a second pivot; the first pivot and the second pivot are arranged in parallel; 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 provided with an inserting port for the limiting block to be clamped; under the condition that the limiting block is clamped in the inserting port, the locking piece and the lock tongue are relatively fixed so as to limit the locking piece to the locking position;

the first elastic reset piece is connected with the locking piece, and when the locking piece is limited at the locking position, the first elastic reset piece is used for applying a first elastic force to the locking piece so as to enable the limiting block to be clamped in the insertion port; the stirring assembly is used for applying a first pushing force to the locking piece so as to enable the limiting block to be separated from the inserting port;

the second elastic reset piece is connected with the lock tongue, and when the limiting block is separated from the insertion port, the second elastic reset piece is used for applying second elastic force to the lock tongue so as to enable the lock tongue to move from a locking position to an unlocking position.

Optionally, the toggle assembly includes: the device comprises a first connecting rod, a second connecting rod, a third connecting rod and a hand-pulling piece connected with the first connecting rod; a part of the hand-pulling piece is positioned outside the mounting seat; the first end of the first connecting rod is pivoted on the mounting seat through a third pivot; the second end of the first connecting rod is pivoted with the first end of the second connecting rod through a fourth pivot; the second end of the second connecting rod is pivoted with the first end of the third connecting rod through a fifth pivot; the middle part of the third connecting rod is pivoted on the mounting seat through a sixth pivot; a toggle piece for applying the first pushing force to the locking piece is arranged 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 trail of the locking piece is partially overlapped with the motion trail of the poking piece; when the first connecting rod is driven to rotate anticlockwise around the third pivot, the first connecting rod drives the third connecting rod to rotate anticlockwise around the sixth pivot through the second connecting rod, so that the poking piece applies the first thrust to the locking piece.

Optionally, the method further comprises: an upper cover; the upper cover is covered on the mounting seat, and a cavity is arranged between the upper cover and the mounting seat; the toggle assembly, the first elastic reset piece, the second elastic reset piece, the locking piece and the lock tongue are positioned in the cavity; the upper cover is provided with an opening communicated with the cavity; a portion of the toggle member extends from the opening to an exterior of the upper cover.

Optionally, the first elastic restoring element is a first torsion spring; the first torsion spring is sleeved on the first pivot; the locking piece is provided with a first clamping groove, and the first clamping groove and the limiting block are respectively positioned on two opposite sides of the locking piece; one torsion arm of the first torsion spring is clamped in the first clamping groove, and the other torsion arm of the first torsion spring is fixedly connected with the upper cover.

Optionally, the second elastic restoring element is a second torsion spring; the second torsion spring is sleeved on the second pivot; the lock tongue is provided with a second clamping groove, and the second clamping groove and the inserting port are respectively positioned on two opposite sides of the lock tongue; one torsion arm of the second torsion spring is clamped in the second clamping groove, and the other torsion arm of the second torsion spring is fixedly connected with the upper cover.

Optionally, the method further comprises: the fourth connecting rod, the fifth connecting rod and the transmission block are connected with the lock tongue; a first shifting block for shifting is arranged at the first end of the fourth connecting rod; the middle part of the fourth connecting rod is pivoted on the mounting seat through a seventh pivot; the second end of the fourth connecting rod is pivoted with the first end of the fifth connecting rod through an eighth pivot; the second end of the fifth connecting rod is provided with a second shifting block for pushing the transmission block;

when the fourth connecting rod is driven to rotate anticlockwise around the seventh pivot, the fifth connecting rod drives the second shifting block to move along a preset path, and the second shifting block applies second thrust to the transmission block so as to enable the lock tongue to move from the unlocking position to the locking position; the motion track of the transmission block is partially overlapped with the preset path of the second shifting block; the second elastic force is opposite to the second pushing force.

Optionally, the third pivot, the fourth pivot, the fifth pivot, the sixth pivot, the seventh pivot, and the eighth pivot are disposed in parallel.

Optionally, the second dial block includes: a first push plate and a first slider; the first push plate is fixedly connected with the second end of the fifth connecting rod; the first push plate is provided with an avoidance groove matched with the transmission block; the first sliding block is fixedly connected with the first push plate; the inner wall of the upper cover is provided with a chute along a preset path; the first sliding block is arranged in the sliding groove in a sliding way.

Optionally, the toggle assembly further includes: a third dial block for pushing the first push plate; the third shifting block is fixedly connected with the first connecting rod; the preset path is partially overlapped with the movement track of the third shifting block;

when the first connecting rod is driven to rotate anticlockwise around the third pivot, the first connecting rod drives the third shifting block to rotate anticlockwise around the third pivot, so that the third shifting block applies third thrust to the first push plate.

An automobile electric suction lock comprises an unlocking device of the automobile electric suction lock.

Compared with the prior art, the electric suction lock and the unlocking device for the automobile have the beneficial effects that:

when the actuator or other parts of the electric suction lock have no faults, the actuator can drive the poking component to automatically open the automobile tail door, and when the actuator or other parts of the electric suction lock have faults, the electric suction lock can manually drive the poking component to manually open the automobile tail door, so that the problem that the electric suction lock cannot be electrically and manually unlocked due to the faults of the electric suction lock is solved, and the electric suction lock can still be manually opened in the automobile when the actuator or other parts have faults, so that the situation that the automobile tail door cannot be opened is avoided.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention (with a locking bolt in an unlocked position);

FIG. 2 is a schematic view of the structure of the fourth link and the fifth link (the structure of the toggle assembly is omitted) according to the embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the fourth link and the fifth link according to the embodiment of the present invention;

FIG. 4 is a schematic view of a locking element according to an embodiment of the present invention;

FIG. 5 is a schematic view of a latch according to an embodiment of the present invention;

FIG. 6 is a schematic illustration of a toggle assembly (omitting the fourth and fifth links) in accordance with an embodiment of the present invention;

FIG. 7 is a schematic diagram showing the connection relationship among the upper cover, the fourth link, and the fifth link according to the embodiment of the present invention;

FIG. 8 is a schematic view of an embodiment of the present invention (with the locking bolt in the locked position);

FIG. 9 is an enlarged schematic view of A in FIG. 8;

FIG. 10 is a schematic view of a toggle assembly according to an embodiment of the present invention;

fig. 11 is a schematic diagram showing a positional relationship among the upper cover, the mounting base, and the toggle member according to an embodiment of the present invention.

In the figure, 1, a mounting seat; 2. the assembly is stirred; 201. a first link; 202. a second link; 203. a third link; 204. a hand-pulling member; 3. a first elastic restoring member; 4. a second elastic restoring member; 5. a first pivot; 6. a locking member; 61. a first clamping groove; 7. a second pivot; 8. a bolt; 81. an insertion port; 82. a second clamping groove; 9. a limiting block; 10. a third pivot; 11. a fourth pivot; 12. a fifth pivot; 13. a sixth pivot; 14. a toggle member; 15. a fourth link; 16. a fifth link; 17. a transmission block; 18. a first dial block; 19. a seventh pivot; 20. an eighth pivot; 21. a second dial block; 211. a first push plate; 2111. an avoidance groove; 212. a first slider; 22. an upper cover; 221. a chute; 23. a third dial block; 24. a first thrust force; 25. a second thrust; 26. and a third thrust.

Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.

First, it should be noted that the top, bottom, upward, downward, etc. orientations referred to herein are defined with respect to the orientation in the various figures, are relative concepts and thus can be changed depending on the different positions they are in and the different practical states. These and other orientations, therefore, are not to be considered limiting.

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

Furthermore, it should also be noted that, for any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, a combination can still be continued between these technical features (or equivalents thereof) to obtain other embodiments of the present application not directly mentioned herein.

It should also be understood that the terms "first," "second," and the like are used herein to describe various information, but that such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the present application.

It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.

As shown in fig. 1, 4, 5, 6, 8, and 9, an unlocking device for an electric suction lock of an automobile according to a preferred embodiment of the present invention includes: the device comprises a mounting seat 1, a toggle assembly 2, a first elastic reset piece 3, a second elastic reset piece 4, a locking piece 6 pivoted on the mounting seat 1 through a first pivot 5 and a lock tongue 8 pivoted on the mounting seat 1 through a second pivot 7; the first pivot 5 is arranged in parallel with the second pivot 7; the bolt 8 is movable between a locked position and an unlocked position relative to the second pivot 7.

A limiting block 9 is arranged on the locking piece 6, and an inserting port 81 for clamping the limiting block 9 is formed on the lock tongue 8; in the case that the stopper 9 is clamped in the insertion opening 81, the locking member 6 and the locking tongue 8 are fixed relatively to each other so as to limit the locking member 6 to the locking position.

The first elastic restoring element 3 is connected with the locking element 6, and when the locking element 6 is limited at the locking position, the first elastic restoring element 3 is used for applying a first elastic force to the locking element 6 so as to enable the limiting block 9 to be clamped in the insertion port 81; the toggle assembly 2 is used for applying a first pushing force 24 to the locking piece 6 so as to enable the limiting block 9 to be separated from the inserting port 81.

The second elastic restoring piece 4 is connected with the lock tongue 8, and when the limiting block 9 is separated from the insertion port, the second elastic restoring piece 4 is used for applying a second elastic force to the lock tongue 8 so as to enable the lock tongue 8 to move from the locking position to the unlocking position.

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

Wherein, mount pad 1 of this application installs on the car tail-gate, in practical application, has the hook groove on the spring bolt 8, sets up the hook lock on the boot of automobile body, makes when spring bolt 8 is located the locking position through the lock joint in hook lock and hook groove to realize the automatic closing of car tail-gate, in addition, when spring bolt 8 is located the separation in hook lock and hook groove, thereby realize the automatic opening of car tail-gate. In the embodiment of the invention, the locking piece 6 is pivoted on the side surface of the mounting seat 1 through the first pivot 5, the lock tongue 8 is pivoted on the side surface of the mounting seat 1 through the second pivot 7, the locking piece 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 piece 6 and the lock tongue 8 can rotate around the first pivot 5 and the second pivot 7 respectively.

The first elastic restoring member 3 is connected with the locking member 6, the first elastic restoring member 3 is used for applying a first elastic force to the locking member 6 to enable the limiting block 9 to be clamped in the insertion opening 81, that is, the elastic force of the first elastic restoring member 3 enables the limiting block 9 of the locking member 6 to be clamped in the insertion opening 81 of the locking bolt 8, so that the locking bolt 8 and the locking member 6 are relatively fixed. In addition, the locking piece 6 approaches to and contacts with the lock tongue 8 under the action of the elastic force of the first elastic reset piece 3, so that the locking piece 6 and the lock tongue 8 are clamped and fixed relatively, and the lock tongue 8 cannot be unlocked automatically under the condition of shaking the vehicle door in the embodiment of the invention. When the first thrust 24 is greater than the first elastic force, the toggle assembly 2 applies the first thrust 24 to the locking piece 6 so that the limiting block 9 is separated from the insertion opening 81, and the lock tongue 8 can freely move, wherein the toggle assembly 2 can be driven manually and can be driven electrically.

Under the condition that the limiting block 9 is separated from the insertion opening 81 and the lock tongue 8 can freely move, the elastic action of the second elastic reset piece 4 applies second elastic force to the lock tongue 8 so that the lock tongue 8 moves from the locking position to the unlocking position, namely when the limiting block 9 is separated from the insertion opening 81 of the lock tongue 8, the lock tongue 8 moves from the locking position to the unlocking position under the elastic action of the second elastic reset piece 4, and therefore automatic opening of the automobile tail door is achieved. The poking component 2 can be driven manually and electrically, so that when the actuator or other parts of the electric suction lock have no faults, the actuator can drive the poking component 2 to automatically open the automobile tail door, and when the actuator or other parts of the electric suction lock have faults, the actuator or other parts of the electric suction lock have the faults, the manual poking component 2 can be driven manually, so that the manual opening of the automobile tail door is realized, the problem that the electric suction lock cannot be unlocked electrically and manually due to the faults of the electric suction lock is solved, and the electric suction lock can still be opened manually in the automobile when the actuator or other parts have the faults so as to avoid the situation that the automobile tail door cannot be opened.

Further, mount pad 1 includes first mounting panel and second mounting panel, and first mounting panel is the contained angle setting with the second mounting panel, and the angle of this contained angle needs to follow car tail-gate looks adaptation, and the unlocking device of the car electricity suction lock of this application can be made to the setting of contained angle compacter, makes and avoids too much occupation installation space. Wherein, pull out the subassembly setting on first mounting panel, locking piece 6 and spring bolt 8 setting are on the second mounting panel.

Specifically, the locking member 6 is a bar-shaped locking member 6, wherein a first end of the bar-shaped locking member 6 is pivoted on the mounting seat 1 through the first pivot 5, and the limiting block 9 is located between the first end and the second end of the locking member 6, and the first pushing force 24 exerted by the toggle assembly 2 acts on the second end of the locking member 6.

In one possible design, referring to fig. 11, the present invention further includes: an upper cover 22; the upper cover 22 is arranged on the mounting seat 1 in a covering manner, and a cavity is formed between the upper cover 22 and the mounting seat 1; the toggle assembly 2, the first elastic reset piece 3, the second elastic reset piece 4, the locking piece 6 and the lock tongue 8 are positioned in the cavity. The upper cover 22 has an opening communicating with the cavity; the part of the poking assembly 2 extends from the opening to the outside of the upper cover, so that the poking assembly 2 can be operated from the outside of the upper cover, and a manual unlocking function can be realized.

In one possible design, referring to fig. 1, 6, 8 and 10, the toggle assembly 2 includes: a first link 201, a second link 202, a third link 203, and a hand-pulling member 204 connected to the first link 201. The part of the hand-pulling member extends to the outside of the mounting base 1, and the first end of the first link 201 is pivotally connected to the mounting base 1 through a third pivot 10. The second end of the first link 201 is pivotally connected to the first end of the second link 202 through a fourth pivot 11. The second end of the second link 202 is pivotally connected to the first end of the third link 203 by a fifth pivot 12. The middle part of the third connecting rod 203 is pivoted to the mounting base 1 through a sixth pivot 13.

A toggle member 14 for applying the first pushing force 24 to the second end of the locking member 6, that is, the toggle member 14 applies the first pushing force 24 to the stopper 9, which is separated from the insertion port 81, is disposed on the second end of the third link 203. The third pivot 10, the fourth pivot 11, the fifth pivot 12, and the sixth pivot 13 are disposed in parallel. The motion track of the locking piece 6 is partially overlapped with the motion track of the stirring piece 14, so that the stirring piece 14 can push the locking piece 6. When the first connecting rod 201 is driven to rotate anticlockwise around the third pivot 10, the first connecting rod 201 drives the third connecting rod 203 to rotate anticlockwise around the sixth pivot 13 through the second connecting rod 202, so that the toggle member 14 applies the first pushing force 24 to the locking member 6, and the first pushing force 24 enables the limiting block 9 to be separated from the insertion port 81. When unlocking is needed, the hand pulling member 204 is manually pressed down, so that the first connecting rod 201 rotates anticlockwise relative to the third pivot 10, and the second connecting rod 202 is driven to displace leftwards, and because the middle part of the third connecting rod 203 is pivoted on the mounting seat 1 through the sixth pivot 13, when the first end of the third connecting rod 203 rotates anticlockwise, the second end of the third connecting rod 203 is driven to rotate anticlockwise, and the pulling member 14 is driven to rotate anticlockwise. The second end of the locking member 6 is located on the counterclockwise rotating track of the toggle member 14, so that when the manual pushing of the manual pushing member 204 is performed, the second end of the locking member 6 can be driven to rotate clockwise, and the limiting block 9 is separated from the insertion port 81.

Wherein, referring to fig. 11, the part of the hand-pulling member extends to the outside of the mounting seat 1, so that a user can manually unlock the lock tongue 8 and the locking member 6 by pulling the part of the hand-pulling member extending to the outside of the mounting seat 1. Specifically, a portion of the hand piece extends out of the upper cover 22 and the cavity of the mount 1.

In a possible design, the invention further comprises a third torsion spring, the third torsion spring is sleeved on the third pivot 10, one torsion arm of the third torsion spring is fixedly connected with the upper cover 22, and the other torsion arm of the third torsion spring is clamped on one side of the first connecting rod 201 far away from the third connecting rod 203, so that the torsion force of the third torsion spring drives the first connecting rod 201 to rotate clockwise under the action of no external force of the hand-pulling piece 204, and simultaneously, the second end of the third connecting rod 203 rotates clockwise, thereby the pulling piece 14 is separated from contact with the second end of the locking piece 6, and the effect of automatic retraction after unlocking is completed each time is realized.

Further, referring to fig. 1, 2, and 4, the first elastic restoring member 3 is a first torsion spring, the first torsion spring is sleeved on the first pivot 5, the locking member 6 is provided with a first clamping groove 61, and the first clamping groove 61 and the limiting block 9 are respectively located on two opposite sides of the locking member 6, that is, the first clamping groove 61 is provided on one side of the locking member 6 away from the locking tongue 8. One torsion arm of the first torsion spring is clamped in the first clamping groove 61, and the other torsion arm of the first torsion spring is fixedly connected with the upper cover 22, so that the second end of the locking piece 6 always has a trend of moving towards the lock tongue 8 under the action of elastic torsion force of the first torsion spring, and therefore the limiting block 9 can be clamped in the inserting opening 81, and the matching convenience and reliability of the lock tongue 8 and the locking piece 6 are improved.

Further, referring to fig. 1, 2, and 5, the second elastic restoring member 4 is a second torsion spring, the second torsion spring is sleeved on the second pivot 7, the lock tongue 8 is provided with a second clamping groove 82, and the second clamping groove 82 and the insertion opening 81 are respectively located on two opposite sides of the lock tongue 8, that is, the second clamping groove 82 is provided on one side of the lock tongue 8 away from the locking member 6. One torsion arm of the second torsion spring is clamped in the second clamping groove 82, and the other torsion arm of the second torsion spring is fixedly connected with the upper cover 22, so that the lock tongue 8 always has a tendency of moving from the locking position to the unlocking position under the action of elastic torsion of the second torsion spring, and after the limiting block 9 is separated from the inserting port 81, the lock tongue 8 can be automatically unlocked under the action of torsion of the second torsion spring.

The setting of first torsional spring and second torsional spring makes spring bolt 8 and locking piece 6 reset opposite direction under the torsion effect to make when locking piece 6 contacts with spring bolt 8, and under the circumstances that insert port 81 was put into to stopper 9 card, spring bolt 8 was in the locking position, and when needs spring bolt 8 moved to the unblock position, only need stir the second end of locking piece 6 through stirring subassembly 2 towards the opposite direction with the reset elasticity torsion of first torsional spring can.

In one possible design, referring to fig. 1, 2, 3, and 7, the present invention further includes: a fourth connecting rod 15, a fifth connecting rod 16 and a transmission block 17 connected with the lock tongue 8. The first end of the fourth link 15 is provided with a first dial 18 for toggling. The middle part of the fourth link 15 is pivotally connected to the mounting base 1 through a seventh pivot 19. The second end of the fourth link 15 is pivotally connected to the first end of the fifth link 16 by an eighth pivot 20. A second end of the fifth connecting rod 16 is provided with a second shifting block 21 for applying a second pushing force 25 to the transmission block 17 so as to move the lock tongue 8 from the unlocking position to the locking position; the motion track of the transmission block 17 partially overlaps with the predetermined path of the second shift block 21, so that the second shift block 21 can push the transmission block 17.

When the fourth link 15 is driven to rotate counterclockwise around the seventh pivot 19, the fourth link 15 drives the fifth link 16 to move along a predetermined path, the fifth link 16 drives the second shifting block 21 to move along the predetermined path, and the second shifting block 21 applies a second thrust 25 to the transmission block 17, and the second thrust 25 moves the lock tongue 8 from the unlocking position to the locking position, so as to realize the locking function of the electric suction lock. The second elastic force is opposite to the second thrust force 25, and when the second thrust force 25 is greater than the second elastic force, the second thrust force 25 drives the latch tongue 8 to rotate counterclockwise around the second pivot 7.

Wherein the fourth link 15 and the fifth link 16 operate independently and the toggle assembly 2 also operates independently.

Specifically, referring to fig. 3 and 7, the second pulling 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 link 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 a movement track of the first push plate 211, and in a use process, the avoidance groove 2111 of the first push plate 211 is embedded with the transmission block 17, so that the movement of the first push plate 211 can push the transmission block 17 to move anticlockwise around the second pivot 7, thereby driving the lock tongue 8 to rotate anticlockwise, and moving the lock tongue 8 from the unlocking position to the locking position to realize the locking function.

The first slider 212 is fixedly connected with the first push plate 211. The inner wall of the upper cover 22 is provided with a chute 221 along a predetermined path. The first slider 212 is slidably disposed in the sliding slot 221. The sliding groove 221 formed along the predetermined path is consistent with the movement track of the second dial 21. The first slider 212 is slidably disposed in the sliding slot 221. The sliding groove 221 guides the first push plate 211 so that the movement trace of the driving block 17 overlaps with the movement trace of the first push plate 211.

Wherein, referring to fig. 7, the predetermined path is arranged in an arc shape.

Specifically, the fourth link 15 is disposed adjacent to the hand piece 204.

Further, an electric lever is provided between the first dial 18 and the hand piece 204 for receiving an external instruction to dial the hand piece 204 to the left to achieve electric unlocking, or dial the first dial 18 of the fourth link 15 to the right to achieve electric locking.

The electric rod has various implementation structures, an example is that a gear is arranged at the end part of the electric rod, the axis of the gear is connected with a motor, and the gear is driven to rotate forward or reversely under the drive of the motor, so that the electric rod can be stirred left and right, and the electric rod can be of any structure for realizing the functions, and the electric rod is not limited herein.

Further, referring to fig. 1, 6, and 10, the toggle assembly 2 further includes: the third dial block 23 for pushing the first push plate 211. The third shift block 23 is fixedly connected to the first link 201. The predetermined path partially overlaps with the movement trace of the third dial 23.

When the first link 201 is driven to rotate anticlockwise around the third pivot 10, the first link 201 drives the third shifting block 23 to rotate anticlockwise around the third pivot 10, so that the third shifting block 23 applies a third thrust 26 to the first push plate 211, the third thrust 26 is used for driving the second shifting block 21 to be separated from the transmission block 17, and the second shifting block 21 is far away from the transmission block 17, so that the second shifting block 21 is prevented from being blocked with the transmission block 17, and the electric suction lock cannot work. That is, in the present application, by setting the toggle assembly 2, when the stopper 9 of the third connecting rod 203 of the toggle assembly drives the locking piece 6 to disengage from the insertion port 81, in order to avoid the second toggle 21 from being blocked by the transmission block 17, the third toggle 23 on the first connecting rod 201 drives the second toggle 21 to disengage from the transmission block 17, so that all parts capable of blocking the lock tongue 8 are driven to disengage from the lock tongue 8, and when the parts of the electric suction lock fail, the lock tongue 8 can be manually restored to the unlocking position from the locking position.

The orientation of the first thrust 24, the second thrust 25, and the third thrust 26 is illustrated in fig. 1.

The embodiment of the invention also provides an electric suction lock of the automobile, which comprises the unlocking device of the electric suction lock of the automobile, so that the automatic closing of the automobile tail door is realized, and the electric suction lock can still be manually opened in the automobile when an actuator or other parts are in fault so as to avoid the situation that the automobile tail door cannot be opened.

The working process of the invention is as follows: under the condition that the unlocking state is switched to the locking state, when the fourth connecting rod 15 is driven to rotate anticlockwise around the seventh pivot 19, the fourth connecting rod 15 drives the fifth connecting rod 16 to move along a preset path, the fifth connecting rod 16 drives the second shifting block 21 to move along the preset path, the second shifting block 21 applies a second thrust 25 to the transmission block 17, the second thrust 25 enables the lock tongue 8 to move from the unlocking position to the locking position, the locking piece 6 approaches and contacts the lock tongue 8 under the action of the elastic force of the first elastic reset piece 3, and the limiting block 9 is clamped in the insertion port 81, so that the locking piece 6 and the lock tongue 8 are relatively clamped and fixed. When the locking state is switched to the unlocking state, the first connecting rod 201 is manually or electrically driven to rotate anticlockwise around the third pivot 10, the first connecting rod 201 drives the third connecting rod 203 to rotate anticlockwise around the sixth pivot 13 through the second connecting rod 202, so that the toggle member 14 applies the first pushing force 24 to the locking member 6, the first pushing force 24 enables the limiting block 9 to be separated from the inserting port 81, meanwhile, the first connecting rod 201 drives the third toggle block 23 to rotate anticlockwise around the third pivot 10, the third pushing force 26 is applied to the first push plate 211 by the third toggle block 23, the third pushing force 26 is used for driving the second toggle block 21 to be separated from the transmission block 17, the second toggle block 21 is far away from the transmission block 17, and the lock tongue 8 returns to the unlocking position from the locking position under the action of the second elastic reset member 4.

In summary, the embodiment of the invention provides an electric suction lock and an unlocking device thereof, which can drive a toggle assembly 2 through an actuator when the actuator or other parts of the electric suction lock have no faults, so as to realize automatic opening of a tail door of an automobile, and can manually drive the toggle assembly 2 when the actuator or other parts of the electric suction lock have faults, so as to realize manual opening of the tail door of the automobile.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.

Claims (10)

1. An unlocking device of an electric suction lock of an automobile, which is characterized by comprising: the device comprises a mounting seat, a toggle assembly, a first elastic reset piece, a second elastic reset piece, a locking piece pivoted on the mounting seat through a first pivot and a lock tongue pivoted on the mounting seat through a second pivot; the first pivot and the second pivot are arranged in parallel; 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 provided with an inserting port for the limiting block to be clamped; under the condition that the limiting block is clamped in the inserting port, the locking piece and the lock tongue are relatively fixed so as to limit the locking piece to the locking position;

the first elastic reset piece is connected with the locking piece, and when the locking piece is limited at the locking position, the first elastic reset piece is used for applying a first elastic force to the locking piece so as to enable the limiting block to be clamped in the insertion port; the stirring assembly is used for applying a first pushing force to the locking piece so as to enable the limiting block to be separated from the inserting port;

the second elastic reset piece is connected with the lock tongue, and when the limiting block is separated from the insertion port, the second elastic reset piece is used for applying second elastic force to the lock tongue so as to enable the lock tongue to move from a locking position to an unlocking position.

2. The unlocking device for an automotive electric suction lock of claim 1, wherein the toggle assembly comprises: the device comprises a first connecting rod, a second connecting rod, a third connecting rod and a hand-pulling piece connected with the first connecting rod; a part of the hand-pulling piece is positioned outside the mounting seat; the first end of the first connecting rod is pivoted on the mounting seat through a third pivot; the second end of the first connecting rod is pivoted with the first end of the second connecting rod through a fourth pivot; the second end of the second connecting rod is pivoted with the first end of the third connecting rod through a fifth pivot; the middle part of the third connecting rod is pivoted on the mounting seat through a sixth pivot; a toggle piece for applying the first pushing force to the locking piece is arranged 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 trail of the locking piece is partially overlapped with the motion trail of the poking piece; when the first connecting rod is driven to rotate anticlockwise around the third pivot, the first connecting rod drives the third connecting rod to rotate anticlockwise around the sixth pivot through the second connecting rod, so that the poking piece applies the first thrust to the locking piece.

3. The unlocking device of an electric vehicle lock according to claim 2, further comprising: an upper cover; the upper cover is covered on the mounting seat, and a cavity is arranged between the upper cover and the mounting seat; the toggle assembly, the first elastic reset piece, the second elastic reset piece, the locking piece and the lock tongue are positioned in the cavity; the upper cover is provided with an opening communicated with the cavity; a portion of the hand piece extends from the opening to an exterior of the upper cover.

4. The unlocking device of an electric suction lock of a vehicle according to claim 3, wherein the first elastic restoring member is a first torsion spring; the first torsion spring is sleeved on the first pivot; the locking piece is provided with a first clamping groove, and the first clamping groove and the limiting block are respectively positioned on two opposite sides of the locking piece; one torsion arm of the first torsion spring is clamped in the first clamping groove, and the other torsion arm of the first torsion spring is fixedly connected with the upper cover.

5. The unlocking device of an electric suction lock of a vehicle according to claim 3, wherein the second elastic restoring member is a second torsion spring; the second torsion spring is sleeved on the second pivot; the lock tongue is provided with a second clamping groove, and the second clamping groove and the inserting port are respectively positioned on two opposite sides of the lock tongue; one torsion arm of the second torsion spring is clamped in the second clamping groove, and the other torsion arm of the second torsion spring is fixedly connected with the upper cover.

6. The unlocking device for an electric vehicle lock according to claim 3, further comprising: the fourth connecting rod, the fifth connecting rod and the transmission block are connected with the lock tongue; a first shifting block for shifting is arranged at the first end of the fourth connecting rod; the middle part of the fourth connecting rod is pivoted on the mounting seat through a seventh pivot; the second end of the fourth connecting rod is pivoted with the first end of the fifth connecting rod through an eighth pivot; the second end of the fifth connecting rod is provided with a second shifting block for pushing the transmission block;

when the fourth connecting rod is driven to rotate anticlockwise around the seventh pivot, the fifth connecting rod drives the second shifting block to move along a preset path, and the second shifting block applies second thrust to the transmission block so as to enable the lock tongue to move from the unlocking position to the locking position; the motion track of the transmission block is partially overlapped with the preset path of the second shifting block; the second elastic force is opposite to the second pushing force.

7. The unlocking device of an electric suction lock for a vehicle according to claim 6, wherein the third pivot, the fourth pivot, the fifth pivot, the sixth pivot, the seventh pivot, and the eighth pivot are disposed in parallel.

8. The unlocking device of an electric vehicle lock according to claim 6, wherein the second dial comprises: a first push plate and a first slider; the first push plate is fixedly connected with the second end of the fifth connecting rod; the first push plate is provided with an avoidance groove matched with the transmission block; the first sliding block is fixedly connected with the first push plate; the inner wall of the upper cover is provided with a chute along a preset path; the first sliding block is arranged in the sliding groove in a sliding way.

9. The unlocking device for an automotive electric suction lock of claim 8, wherein the toggle assembly further comprises: a third dial block for pushing the first push plate; the third shifting block is fixedly connected with the first connecting rod; the preset path is partially overlapped with the movement track of the third shifting block;

when the first connecting rod is driven to rotate anticlockwise around the third pivot, the first connecting rod drives the third shifting block to rotate anticlockwise around the third pivot, so that the third shifting block applies third thrust to the first push plate.

10. An automotive electric suction lock, comprising: an unlocking device for an automotive electric suction lock according to any one of claims 1 to 9.

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