CN218715960U - Self-suction lock for vehicle door - Google Patents

Abstract

The utility model provides a door is from inhaling lock, includes the casing, including a motor, an end cap, a controller, and a cover plate, first gear, first group spare, the second group spare, the actuating arm, the spring bolt, the bumper bar, first conversion arm, second conversion arm, the driving arm, emergent arm and jack catch, can realize the shutting, unblank and emergent unblank to, unblank and the shutting is just reversing through same motor and first gear, and combine two sets of different transmission system to realize, make the structure compacter, the cost is cheaper, installation and popularization in the door of being convenient for.

Description

Self-suction lock for vehicle door

Technical Field

The utility model relates to a tool to lock especially relates to a be applied to tool to lock on vehicle door.

Background

The vehicle door lock is an important part component of a vehicle body and is a special part integrating safety, decoration and manufacturability. Vehicle door lock generally has interior division of mechanism and outer opening mechanism, and interior division of mechanism is used for opening the door from the car in, and outer opening mechanism is used for opening the door from the car outward, and its function of current vehicle door lock is comparatively single, and use mechanical drive to be main moreover, and for improving the simple operation nature, motor drive's vehicle door lock is more and more: in addition, the existing car door locking and unlocking uses two sets of different driving mechanisms, if the two sets of driving mechanisms are driven by a motor, the unlocking and locking need two different motors, so that more parts are caused, the mechanism is more complex, and the size is larger.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved in the present invention is to provide a self-priming lock for a vehicle door, wherein a single motor can control the locking and unlocking functions.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a self-priming lock for car door is composed of a main body with a self-priming hole and a self-priming hole

A housing having a content space and a locking notch at one side;

the motor is arranged in the content space of the shell and can rotate forwards and backwards;

the first gear can be rotatably arranged in the shell and is in driving connection with the motor, and a first shifting pin and a second shifting pin are arranged on the front end face at intervals;

the middle part of the first shifting piece is rotatably arranged in the shell, and the rear end of the first shifting piece is movably connected with the second shifting piece;

the middle part of the driving arm can be rotatably arranged in the shell, one end of the driving arm can be matched and connected with the first poking pin, and the other end of the driving arm is in driving connection with the front end of the driving arm;

the lock tongue can be rotatably arranged in the shell, is close to the lock opening and is provided with a lock groove for the lock hook to be arranged, and a reset piece is arranged on the lock tongue; in the unlocking state, the lock groove is overlapped with the lock opening part, and in the half-locking state, the lock groove rotates inwards; under the complete locking state, the lock groove continues to rotate inwards;

the safety rod can be rotatably arranged in the shell, a first disengaging shaft and a second disengaging shaft are respectively formed at two ends of the safety rod, the first disengaging shaft can drive the first shifting piece to rotate,

a first conversion arm rotatably provided in the housing,

the transmission arm is transversely and translationally arranged in the shell, one end of the transmission arm is in driving fit with the second shifting pin, and the other end of the transmission arm is movably connected with one end of the first conversion arm;

a second switching arm rotatably provided in the housing, having an extension portion formed at a lower end thereof, and rotatable under a rotation condition of the first switching arm;

the emergency arm can be rotatably arranged in the shell, and the inner end of the emergency arm is provided with a stress part matched with the extending part and a convex part in driving fit with the second release shaft of the bumper; and

the claw is arranged below the emergency arm and can rotate coaxially with the emergency arm, and the rotation of the claw can enable the lock tongue to rotate from a half-locking state or a locking state to an unlocking state;

the motion planes of the first gear, the first shifting piece, the second shifting piece, the driving arm, the transmission arm, the first conversion arm and the second conversion arm are parallel to each other, the motion planes of the first shifting piece, the second shifting piece, the safety rod, the clamping jaw, the lock tongue and the emergency arm are parallel to each other, and the motion planes of the first gear and the first shifting piece are perpendicular to each other;

when the self-priming locking device is locked, the motor rotates forwards to drive the driving arm to rotate, the driving arm drives the first shifting piece, the first shifting piece drives the second shifting piece, and the second shifting piece drives the lock tongue to complete self-priming locking;

when the lock is unlocked, the motor rotates reversely to drive the transmission arm to move transversely, the transmission arm drives the first conversion arm, and the first conversion arm drives the second conversion arm; the second conversion arm drives the emergency arm to drive the safety rod, the safety rod drives the second shifting piece to rotate reversely, the driving on the lock tongue is removed, meanwhile, the emergency arm drives the clamping jaw, the clamping jaw removes the limit on the lock tongue, and the lock tongue rotates reversely under the action of the reset piece to realize unlocking; when the emergency unlocking is carried out, the emergency arm is pulled, the emergency arm drives the safety rod, the safety rod drives the second shifting piece to rotate reversely, the driving to the lock tongue is removed, meanwhile, the emergency arm drives the clamping jaw, the clamping jaw removes the limit to the lock tongue, and the lock tongue rotates reversely under the action of the reset piece, so that the unlocking is realized.

Furthermore, the casing include the base and locate the mounting panel of base one side, first gear, actuating arm, first conversion arm and second conversion arm can locate on the mounting panel with rotating, first shifting piece, bumper bar, emergent arm then locate on the base.

Preferably, the motor is in driving connection with the first gear through a gear set, a worm is arranged on a driving shaft of the motor, and the gear set comprises

A second gear; one end of the worm gear is provided with worm teeth meshed with the worm, and the other end of the worm gear is provided with a first wheel part; and

and a third gear, one end of which is engaged with the second wheel part of the first wheel part, and the other end of which is engaged with the third wheel part of the first gear.

The first conversion arm and the second conversion arm are connected through a clutch mechanism, the second conversion arm is provided with a strip-shaped hole in the vertical direction, and the clutch mechanism comprises

The clutch rod can be transversely movably arranged in the shell, and one end of the clutch rod is in driving fit with the stress part of the emergency arm;

the clutch arm is rotatably arranged in the shell, and one end of the clutch arm is movably connected with the other end of the clutch rod; and

the upper end of the clutch pin is movably connected with the other end of the clutch arm, the bottom end of the clutch pin is provided with a pin shaft part, and the pin shaft part is arranged in the strip-shaped hole of the second conversion arm;

the pin shaft part is located under the state of bar hole bottom, and aforementioned first conversion arm and second conversion arm connection drive, and aforementioned round pin shaft part shifts up the back, and aforementioned first conversion arm and second conversion arm disconnection drive.

Specifically, one end of the first conversion arm, which is positioned on the rear end face of the clutch arm, forms a driving head, an avoidance groove is formed on the inner side of the driving head, and the avoidance groove is arranged corresponding to the strip-shaped hole; the driving head parts of the first conversion arm and the second conversion arm are in driving connection through the pin shaft part in a state that the pin shaft part is positioned at the bottom end of the strip-shaped hole; after the pin shaft part moves upwards, the pin shaft part enters an avoidance groove of the first conversion arm, and the first conversion arm and the second conversion arm are disconnected and driven.

When emergent arm starts, can make first conversion arm and second conversion arm disconnection simultaneously, like this, under the circumstances such as outage, the tool to lock can also normal use through mechanical operation.

The middle part of the second conversion arm can be rotatably arranged in the shell, one end of the second conversion arm, which is far away from the extension part, can be connected with an inner emergency stay cable, and a person can conveniently open the door in the vehicle.

The motor is characterized in that a zero position switch capable of resetting the motor is arranged on the shell, the zero position switch is provided with a zero position touch head extending out, a first switch piece matched with the zero position switch is arranged on the transmission arm, a first touch block is arranged on the first switch piece, a first inclined plane and a second inclined plane which are intersected are arranged on the first touch block, and the first inclined plane and the second inclined plane are matched with the zero position touch head to realize on-off. The motor can be ensured to return to the original position at any time, and the normal function operation of the self-suction lock is ensured.

Further, the self-priming lock further comprises a half-lock switch, a full-lock switch and a second switch piece, wherein the second switch piece is strip-shaped and is transversely arranged in the shell constantly, a first groove matched with the half-lock switch and a second groove matched with the full-lock switch are formed in the second switch piece, a shifting piece capable of rotating synchronously is arranged above the lock tongue, and the shifting piece can drive the second switch piece to move transversely under the rotating condition so as to drive the corresponding half-lock switch and the corresponding full-lock switch.

Furthermore, spring bolt top can be equipped with interior handle connecting piece number and outer handle connecting piece with rotating, the casing in be equipped with interior handle switch and outer handle switch, aforementioned interior handle switch has with aforementioned interior handle connecting piece complex interior handle touch head, aforementioned outer handle switch has with aforementioned outer handle connecting piece complex outer handle touch head. The inner door handle connecting piece can touch an inner handle touch head of an inner handle switch after rotating, so that unlocking is realized; the outer handle connecting piece can touch the outer handle touch head of the outer handle switch after rotating, so that unlocking is realized.

Further, the self-priming lock further comprises a jaw position switch, a third switch piece matched with the jaw position switch is rotatably arranged in the shell close to the jaw, and the jaw can drive the third switch piece to rotate in a rotating state.

Compared with the prior art, the utility model has the advantages of: the unlocking and locking are realized by the forward and reverse rotation of the same motor and the same first gear and the combination of two different transmission systems, so that the structure is more compact, the manufacturing cost is lower, and the installation and the popularization in the vehicle door are facilitated.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment.

Fig. 2 is an exploded view of the embodiment.

Fig. 3 is a schematic structural view of fig. 2 with the housing removed.

Fig. 4 is an enlarged view of a portion of the structure in fig. 3.

Fig. 5 is an enlarged view of fig. 4 with the second switch member removed.

Fig. 6 is an enlarged view of a portion of the clutch mechanism of fig. 4.

Fig. 7 is an exploded view of fig. 6.

FIG. 8 is a schematic view of the embodiment in a fully latched condition.

FIG. 9 is a schematic diagram of the embodiment in a half-locked state.

Fig. 10 is a schematic view of the embodiment in an unlocked state.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 3, the self-priming lock of the vehicle door in the embodiment includes a housing 1, a motor 23, a gear set, a first gear 2, a first dial 71, a second dial 72, a driving arm 3, a latch 59, a safety lever 6, a first conversion arm 51, a second conversion arm 52, a transmission arm 4, an emergency arm 55, a claw 56, a clutch mechanism, a claw position switch 1c, a zero position switch 2c, a half-lock switch 3c, a full-lock switch 4c, an inner handle switch 6c, an outer handle switch 5c, and a control board (not shown).

The housing 1 has a content space and a locking notch 1a at one side; the housing 1 in this embodiment includes a base 11, and a mounting plate 12, a first end cap 13, and a second end cap 14 provided on one side of the base 11, the mounting plate 12 includes a vertical portion 121 and a horizontal portion 122, and the first end cap 13 and the second end cap 14 wrap the base 11 and the mounting plate 12 from both sides. The first gear 2, the driving arm 3, the first conversion arm 51 and the second conversion arm 52 are rotatably provided on the vertical portion 121 of the mounting plate 12, and the first dial 71, the safety lever 6 and the emergency arm 55 are provided on the base 11.

As shown in fig. 3, the motor 23 is disposed in the inner space of the housing 1 and can rotate forward and backward; the first gear 2 is rotatably arranged in the shell 1 and is in driving connection with a motor 23 through a gear set, and a first shifting pin 21 and a second shifting pin 22 are arranged on the front end face at intervals; specifically, the motor 23 is in driving connection with the first gear 2 through a gear set, a worm 24 is arranged on a driving shaft of the motor 23, the gear set comprises a second gear 25 and a third gear 26, one end of the second gear 25 is provided with a worm gear meshed with the worm 24, and the other end of the second gear 25 is provided with a first gear part; the third gear 26 has a second wheel part at one end which meshes with the first wheel part and a third wheel part at the other end which meshes with the first gear 2.

As shown in fig. 3, the middle of the first shifting member 71 is rotatably disposed in the housing 1, and the rear end is movably connected with a second shifting member 72; the middle part of the driving arm 3 is rotatably arranged in the shell 1, one end of the driving arm can be matched and connected with the first poking pin 21, and the other end of the driving arm is in driving connection with the front end of the driving arm 3.

As shown in fig. 4 and 5, the latch tongue 59 is rotatably disposed in the housing 1 near the locking opening 1a and has a locking groove 591 for the latch hook. The bolt 59 is provided with a reset piece (not shown in the figure), the reset piece always forces the bolt to be in an unlocking state, and the reset piece can adopt a torsion spring, a tension spring and the like.

As shown in fig. 8, in the unlocked state, the lock groove 591 partially overlaps the lock port 1a; as shown in fig. 9, in the half-lock state, the lock groove 591 rotates inward; as shown in fig. 10, in the fully latched state, the latch recess 591 continues to rotate inward. The safety lever 6 is rotatably disposed in the housing 1, and a first disengaging shaft 61 and a second disengaging shaft 62 are respectively formed at both ends, and the first disengaging shaft 61 can drive the first dial 71 to rotate.

As shown in fig. 4 to 7, the first switching arm 51 is rotatably provided in the housing 1, and has a driving head 512, and an avoiding groove is formed inside the driving head 512.

The driving arm 4 is disposed in the housing 1 in a lateral translation manner, and in this embodiment, the guiding engagement is realized by the guiding hole 41 of the first switching arm 51 and the guiding post 42 fixed to the mounting plate 12. One end of the first switching arm 51 is in driving fit with the second toggle pin 22, and the other end is movably connected with one end 513 of the first switching arm 51.

The second switching arm 52 is rotatably provided in the housing 1, has an extension 521 formed at a lower end thereof, and is rotatable under a rotation condition of the first switching arm 51; the second switch arm 52 is rotatably disposed in the housing 1 at a middle portion thereof, and an end 522 of the second switch arm, which is far from the extension 521, is connected to an inner emergency cable.

The emergency arm 55 is rotatably arranged in the housing 1, and the inner end of the emergency arm 55 is provided with a force receiving part 551 matched with the extension part 521 and a convex part 552 in driving fit with the second release shaft 62 of the bumper 6; pawl 56 is disposed below panic arm 55 and rotates coaxially with panic arm 55, and rotation of pawl 56 drives bolt 59 from a half-locked or latched state to an unlatched state.

The movement planes of the first gear 2, the first shifting piece 71, the second shifting piece 72, the driving arm 3, the transmission arm 4, the first conversion arm 51 and the second conversion arm 52 are parallel to each other, the movement planes of the first shifting piece 71, the second shifting piece 72, the safety lever 6, the clamping jaw 56, the locking tongue 59 and the emergency arm 55 are parallel to each other, and the movement planes of the first gear 2 and the first shifting piece 71 are perpendicular to each other.

Referring to fig. 6 and 7, the first switching arm 51 and the second switching arm 52 are connected by a clutch mechanism, the second switching arm 52 has a vertically elongated hole 523, and the clutch mechanism in this embodiment includes a clutch lever 54, a clutch arm 53, and a clutch pin 58. The clutch rod 54 is arranged in the shell 1 in a transversely movable manner, and one end of the clutch rod is in driving fit with the stress part 551 of the emergency arm 55; the clutch arm 53 is rotatably arranged in the shell 1, and one end of the clutch arm is movably connected with the other end of the clutch rod 54; the upper end of the clutch pin 58 is movably connected with the other end of the clutch arm 53, a pin part 581 is formed at the bottom end, and the pin part 581 is arranged in the strip-shaped hole 523 of the second switching arm 52.

The first conversion arm 51 is positioned on the rear end surface of the clutch arm 53, and an avoidance groove 511 is formed on the inner side of one end of the first conversion arm, and the avoidance groove 511 is arranged corresponding to the strip-shaped hole 523; when the pin shaft portion 581 is located at the bottom end of the bar-shaped hole 523, the driving head portion 512 of the first switch arm 51 acts on the pin shaft portion 581, and the pin shaft portion 581 can drive the second switch arm 52 to rotate. When the pin portion 581 moves up, the pin portion 581 enters the escape groove 511 of the first switch arm 51, so that the first switch arm 51 and the second switch arm 52 are disconnected from driving.

As shown in fig. 6 and 7, the zero position switch 2c is used for resetting the motor 23, the zero position switch 2c has an extended zero position contact head, the transmission arm 4 is provided with a first switch component 9 matched with the zero position switch, the first switch component 9 is provided with a first contact block 93, and the first contact block 93 is provided with a first inclined surface 91 and a second inclined surface 92 which intersect with each other. The first inclined surface 91 and the second inclined surface 92 are matched with a zero-position touch head to realize on-off.

The second switch 8 is strip-shaped and transversely arranged in the casing 1, the second switch 8 is provided with a first groove 81 matched with the half-lock switch 3c and a second groove 82 matched with the full-lock switch 4c, a toggle member 84 capable of synchronously rotating is arranged above the bolt 59, the toggle member 84 can drive the second switch 8 to transversely move under the rotation condition, so as to drive the corresponding half-lock switch 3c and the full-lock switch 4c, specifically, the toggle member 84 is provided with a convex column 841, the push rod 8 is provided with a connecting hole 83, and the convex column 841 is arranged in the connecting hole 83, so that the connection between the two is realized.

The spring bolt 59 top can be equipped with interior handle connecting piece 501 and outer handle connecting piece 50 with rotating, is equipped with interior handle switch 6c and outer handle switch 5c in the casing, and interior handle switch 6c has the interior handle touch head with interior handle connecting piece 501 complex, and outer handle switch 5c has the outer handle touch head with outer handle connecting piece 50 complex.

A third switch 57 which is matched with the jaw position switch 1c is rotatably arranged in the shell 1 close to the jaw 56, the jaw position switch 1c is close to the third switch 57, and the jaw 56 can drive the third switch 57 to rotate under the rotating state.

The resetting of the components in this embodiment is basically realized with torsion springs, such as torsion spring 3d for resetting of the drive arm 3, torsion spring 55d for resetting of the emergency arm 55, torsion spring 53d for resetting of the clutch arm 53, torsion spring 57d for resetting of the third switch member 57, torsion spring 4d for resetting of the drive arm 4, and the like.

When the self-priming locking device is locked in a half-locking state or a full-opening state, the motor 23 rotates positively, the first gear 2 is driven to rotate through the gear set, the first shifting pin 21 of the first gear 2 drives the arm 3 to rotate, the arm 3 drives the first shifting piece 71, the first shifting piece 71 drives the second shifting piece 72 to rotate, the driving end 721 of the second shifting piece 72 acts on the salient point 592 of the locking tongue, and the locking tongue 59 is driven to rotate, so that the self-priming locking is completed. The half-lock state and the full-open state can be judged through a half-lock switch 3c, a full-lock switch 4 and a jaw position switch 1c, specifically, the half-lock switch 3c, the full-lock switch 4 and the jaw position switch 1c are fully opened, the self-priming lock is in an unlocking state, the half-lock switch 3c, the full-lock switch 4 and the jaw position switch 1c are fully closed, the self-priming lock is in a closing state, the states of the rest three switches all belong to a half-lock state, the control is realized through a control panel (not shown in the figure), and all the switches and the motor 23 are connected with the control panel.

When the lock is unlocked, the motor 23 rotates reversely, the first gear 2 is driven to rotate reversely through the gear set, the second shifting pin 22 of the first gear 2 drives the transmission arm 4 to move transversely, the transmission arm 4 drives the first conversion arm 51, the first conversion arm 51 drives the second conversion arm 52, the extension part 521 of the second conversion arm 52 acts on the bending part 551 of the emergency arm 55, the emergency arm 55 drives the claw 56 to rotate, the clamping part 562 of the claw 56 relieves the limit on the lock tongue, meanwhile, the second disengaging shaft 62 of the safety lever 6 is acted by the extension part 552 of the emergency arm 55, the safety lever 6 rotates, the first disengaging shaft 61 of the safety lever acts on the second shifting piece 72, the driving end 721 of the second shifting piece 72 relieves the effect on the lock tongue 59, and the lock tongue realizes unlocking under the effect of the resetting piece.

During emergency unlocking, the emergency arm 55 is pulled, the emergency arm 55 drives the safety lever 6, the safety lever 6 drives the second shifting piece 72 to rotate, the effect on the lock tongue 59 is removed, meanwhile, the emergency arm 55 drives the clamping jaw 56, the clamping jaw 56 removes the limit on the lock tongue, and the lock tongue 59 rotates reversely under the effect of the reset piece, so that unlocking is achieved. Further, simultaneously, the force-bearing portion 551 of the emergency arm 55 acts on the bending portion 541 of the clutch lever 54, the clutch lever 54 drives the clutch arm 53 to rotate, and drives the clutch pin 58 to move upwards, so that the pin shaft portion 581 on the clutch pin 58 moves upwards along the strip-shaped hole 523, and the first switching arm 51 and the second switching arm 52 are disengaged and cannot be driven, so that the lock can be normally used through mechanical operation under the conditions of power failure and the like.

The inner door handle connecting piece 501 can touch the inner handle touch head of the inner handle switch 6c after rotating, a signal is generated, and the motor 23 rotates reversely to realize unlocking; the outer handle connecting piece 50 can touch the outer handle touch head of the outer handle switch 5c after rotating, a signal is generated, and the motor 23 rotates reversely to realize unlocking. The central control unlocking in the vehicle can be realized through the control panel.

Claims (10)

1. A self-priming lock for car door is composed of a main body with a self-priming hole and a self-priming hole

A housing (1) having a content space and having a locking notch at one side;

a motor (23) which is provided in the content space of the housing (1) and can rotate forward and backward;

a first gear (2) which is rotatably arranged in the shell (1) and is in driving connection with the motor (23), and a first shifting pin (21) and a second shifting pin (22) are arranged on the front end surface at intervals;

a first shifting piece (71), the middle part of which is rotatably arranged in the shell (1), and the rear end of which is movably connected with a second shifting piece (72);

the middle part of the driving arm (3) is rotatably arranged in the shell (1), one end of the driving arm can be matched and connected with the first poking pin (21), and the other end of the driving arm is in driving connection with the front end of the driving arm (3);

the lock tongue (59) can be rotatably arranged in the shell (1) and is close to the lock opening and is provided with a lock groove (591) for the lock hook to be arranged; the bolt is provided with a reset piece; in the unlocking state, the lock groove (591) is overlapped with the lock opening part, and in the half-locking state, the lock groove (591) rotates inwards; in the complete locking state, the lock groove (591) continues to rotate inwards;

a safety lever (6) rotatably provided in the housing (1), a first disengaging shaft (61) and a second disengaging shaft (62) are formed at both ends of the safety lever, the first disengaging shaft (61) can drive the first shifting piece (71) to rotate,

a first switching arm (51) rotatably provided in the housing (1),

the transmission arm (4) is transversely arranged in the shell (1) in a translation manner, one end of the transmission arm is in driving fit with the second shifting pin (22), and the other end of the transmission arm is movably connected with one end of the first conversion arm (51);

a second switching arm (52) rotatably provided in the housing (1), having an extension (521) formed at a lower end thereof, and rotatable under a rotation condition of the first switching arm (51);

an emergency arm (55) rotatably provided in the housing (1), wherein the emergency arm (55) has a force receiving portion (551) engaged with the extension portion (521) and a protrusion (552) drivingly engaged with the second release shaft (62) of the safety lever (6) at the inner end thereof; and

a claw (56) which is provided below the emergency arm (55) and can rotate coaxially with the emergency arm (55), and the claw (56) can rotate to enable the bolt (59) to rotate from a half-locking state or a locking state to an unlocking state;

the motion planes of the first gear (2), the first shifting piece (71), the second shifting piece (72), the driving arm (3), the transmission arm (4), the first conversion arm (51) and the second conversion arm (52) are parallel to each other, the motion planes of the first shifting piece (71), the second shifting piece (72), the safety lever (6), the clamping jaw (56), the locking bolt (59) and the emergency arm (55) are parallel to each other, and the motion planes of the first gear (2) and the first shifting piece (71) are perpendicular to each other;

during locking, the motor (23) rotates positively to drive the driving arm (3) to rotate, the driving arm (3) drives the first shifting piece (71), the first shifting piece (71) drives the second shifting piece (72), and the second shifting piece (72) drives the lock tongue (59) to complete self-suction locking;

when the lock is unlocked, the motor rotates reversely to drive the first gear to rotate reversely, the second shifting pin of the first gear drives the transmission arm to move transversely, the transmission arm drives the first conversion arm, the first conversion arm drives the second conversion arm, the second conversion arm acts on the emergency arm, the emergency arm drives the clamping jaw to rotate, the clamping jaw removes the limit on the lock tongue, meanwhile, the safety lever is acted by the emergency arm to rotate, the first disengaging shaft of the safety lever acts on the second shifting piece to enable the second shifting piece to remove the effect on the lock tongue, and the lock tongue realizes unlocking under the effect of the reset piece;

when the emergency unlocking is carried out, the emergency arm (55) is pulled, the emergency arm (55) drives the safety lever (6), the safety lever (6) drives the second shifting piece (72) to rotate reversely, the driving on the lock bolt (59) is removed, meanwhile, the emergency arm (55) drives the clamping jaw (56), the clamping jaw (56) is removed from limiting on the lock bolt, and the lock bolt (59) rotates reversely under the action of the reset piece to realize unlocking.

2. A vehicle door self-priming lock according to claim 1, wherein the housing (1) comprises a base (11) and a mounting plate (12) disposed on one side of the base (11), the first gear (2), the driving arm (3), the first switching arm (51) and the second switching arm (52) are rotatably disposed on the mounting plate (12), and the first toggle member (71), the safety lever (6) and the emergency arm (55) are disposed on the base (11).

3. Self-priming lock for vehicle doors according to claim 1, characterized in that the electric motor (23) is drivingly connected to the first gear (2) by means of a gear train, the drive shaft of the electric motor (23) being provided with a worm (24), the gear train comprising

A second gear (25); one end of the worm gear is provided with a worm gear meshed with the worm (24), and the other end of the worm gear is provided with a first wheel part; and

and a third gear (26) having a second wheel part with one end engaged with the first wheel part and a third wheel part with the other end engaged with the first gear (2).

4. The self-priming door lock according to claim 1, characterized in that said first switching arm (51) and said second switching arm (52) are connected by a clutch mechanism, said second switching arm (52) having a vertically elongated hole (523) and said clutch mechanism comprising

A clutch lever (54) which is arranged in the shell (1) in a transversely movable manner, and one end of the clutch lever is in driving fit with the stress part (551) of the emergency arm (55);

the clutch arm (53) is rotatably arranged in the shell (1), and one end of the clutch arm is movably connected with the other end of the clutch rod (54); and

the upper end of the clutch pin (58) is movably connected with the other end of the clutch arm (53), a pin shaft part (581) is formed at the bottom end of the clutch pin (58), and the pin shaft part (581) is arranged in a strip-shaped hole (523) of the second conversion arm (52);

when the pin shaft portion (581) is positioned at the bottom end of the strip-shaped hole (523), the first switching arm (51) and the second switching arm (52) are connected and driven, and when the pin shaft portion (581) moves up, the first switching arm (51) and the second switching arm (52) are disconnected and driven.

5. The self-absorption lock of the vehicle door according to claim 4, wherein the first switching arm is located at the rear end face of the clutch arm and has one end forming a driving head, the driving head is formed with an avoiding groove at the inner side, and the avoiding groove is arranged corresponding to the strip-shaped hole; the driving head parts of the first conversion arm and the second conversion arm are in driving connection through the pin shaft part in a state that the pin shaft part is positioned at the bottom end of the strip-shaped hole; after the pin shaft part moves upwards, the pin shaft part enters an avoidance groove of the first conversion arm, and the first conversion arm and the second conversion arm are disconnected and driven.

6. A vehicle door self-priming lock according to claim 4, characterized in that the second switching arm (52) is rotatably arranged in the housing (1) at the middle and is connected with an internal emergency cable at the end remote from the extension (521).

7. The self-priming door lock according to claim 1, characterized in that the housing (1) is provided with a zero position switch (2 c) capable of resetting the motor (23), the zero position switch (2 c) is provided with an extended zero position contact head, the transmission arm (4) is provided with a first switch member (9) matched with the zero position switch, the first switch member (9) is provided with a first contact block (93), the first contact block (93) is provided with a first inclined surface (91) and a second inclined surface (92) which are intersected, and the first inclined surface (91) and the second inclined surface (92) are matched with the zero position contact head to realize on-off.

8. The vehicle door self-priming lock according to claim 7, characterized in that the self-priming lock further comprises a half-lock switch (3 c), a full-lock switch (4 c) and a second switch member (8), wherein the second switch member (8) is strip-shaped and is transversely arranged in the housing (1), the second switch member (8) is provided with a first groove (81) matched with the half-lock switch (3 c) and a second groove (82) matched with the full-lock switch (4 c), a toggle member (84) capable of synchronously rotating is arranged above the latch tongue (59), and the toggle member (84) can drive the second switch member (8) to transversely move under the rotation condition, so as to drive the corresponding half-lock switch (3 c) and the full-lock switch (4 c).

9. The self-priming lock for vehicle doors according to claim 8, wherein the latch tongue (59) is rotatably provided with an inner handle connector (501) and an outer handle connector (50), the housing is provided with an inner handle switch (6 c) and an outer handle switch (5 c), the inner handle switch (6 c) has an inner handle contact head cooperating with the inner handle connector, and the outer handle switch has an outer handle contact head cooperating with the outer handle connector.

10. A self-priming lock for vehicle doors according to claim 9, characterized in that it further comprises a jaw position switch (1 c), a third switch member (57) cooperating with the jaw position switch (1 c) being rotatably provided in the housing (1) adjacent to the jaw (56), said jaw (56) being capable of driving the third switch member (57) in rotation when it is in a rotated state.

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