CN109113464B

CN109113464B - Full-automatic automobile tail door lock

Info

Publication number: CN109113464B
Application number: CN201811097227.7A
Authority: CN
Inventors: 舒畅; 舒冬冬; 陈新宇; 范捷; 郑定海
Original assignee: Zhejiang Tianyue Automobile Parts Co ltd
Current assignee: Zhejiang Tianyue Automobile Parts Co ltd
Priority date: 2018-09-20
Filing date: 2018-09-20
Publication date: 2020-06-16
Anticipated expiration: 2038-09-20
Also published as: CN109113464A

Abstract

The invention relates to a full-automatic automobile tail door lock capable of automatically locking a trunk lid under the condition that the trunk lid is put down. This kind of full-automatic car tail-gate lock is including locking the shell, big spring bolt and little spring bolt, big spring bolt all rotates with little spring bolt and establishes on the lock shell its characterized in that: the lock shell is provided with a motor, the motor is in transmission connection with a middle straight gear, and the lower end of the middle straight gear is provided with a shifting block for shifting a small spring bolt to rotate. The full-automatic automobile tail door lock can automatically complete the function of half locking or full locking under the condition that a trunk cover is put down through the driving of a motor and a reasonable transmission structure, thereby greatly facilitating the use of a trunk.

Description

Full-automatic automobile tail door lock

Technical Field

The invention relates to a lock, in particular to an automobile tail door lock used on an automobile trunk.

Background

The automobile tail door lock is a lock for locking an automobile trunk, and the unlocking of the existing general automobile tail door lock can be realized through electric operation, namely, a trunk cover can be automatically opened; when the trunk lid needs to be locked, a common vehicle needs to be closed by hands, then the vehicle is pressed downwards, and the tail door lock is locked; some high-end vehicles are driven by a motor at the upper part, the trunk cover can be automatically put down, and then the trunk cover is locked by pressing down the trunk cover by hands. At present, no automobile tail door lock capable of automatically locking under the condition that a trunk lid of a trunk is put down exists in the market.

Disclosure of Invention

In view of the defects in the prior art, the invention innovatively provides the full-automatic automobile tail door lock which can automatically lock the trunk lid under the condition that the trunk lid is put down. This kind of full-automatic car tail-gate lock is including locking the shell, big spring bolt and little spring bolt, big spring bolt all rotates with little spring bolt and establishes on the lock shell its characterized in that: the lock shell is provided with a motor, the motor is in transmission connection with a middle straight gear, the lower end of the middle straight gear is provided with a shifting block for shifting a small spring bolt to rotate, the middle straight gear is meshed with a large straight gear, the large straight gear is in transmission connection with a shifting arm for shifting a large spring bolt to rotate, the large spring bolt is connected with a large spring bolt return torsion spring, and the small spring bolt is connected with a small spring bolt return torsion spring; big spring bolt has the locked groove, the position of neighbouring locked groove has the spacing face of full lock on the big spring bolt, the position of keeping away from the locked groove on the big spring bolt has the spacing face of half lock, little spring bolt has the spacing portion that can act on the spacing face of half lock and full lock in proper order, still install on the lock shell and can sense the limit switch that unblanks, can sense the half lock limit switch of half lock and can sense the full lock limit switch of full lock, unblank limit switch, half lock limit switch and full lock limit switch all are connected with the motor electricity.

Be equipped with shifting block return assembly on little spring bolt, shifting block return assembly establish the rotor plate on little spring bolt, with well straight-teeth gear meshed little straight-teeth gear and semicircle buffer block including rotating, the lower extreme at little straight-teeth gear is connected to the semicircle buffer block, the rotor plate has the baffle, the semicircle buffer block is used in on the baffle, rotor plate and rotor plate return torsional spring connection, the rotor plate has the portion of stirring with shifting block emergence effect.

An output shaft of the motor is connected with a worm, the worm is meshed with the worm wheel, and the upper end of the middle straight gear is connected with the center of the worm wheel.

According to the full-automatic automobile tail door lock provided by the invention, the function of half locking or full locking can be automatically completed under the condition that the trunk cover is put down through the driving of the motor and a reasonable transmission structure, so that the use of the trunk is greatly facilitated.

Drawings

FIG. 1 is a perspective view of the present invention 1;

FIG. 2 is a perspective view of the present invention 2;

FIG. 3 is a perspective view of the present invention 3;

FIG. 4 is a view of the unlocked state of the present invention;

FIG. 5 is a diagram of the half-lock state of the present invention;

FIG. 6 is a full lock state diagram of the present invention.

Detailed Description

As shown in fig. 1-3, the full-automatic automobile tail door lock comprises a lock case (not shown), a large bolt 5 and a small bolt 6, wherein the large bolt 5 and the small bolt 6 are both rotatably arranged on the lock case, the large bolt 5 is provided with a lock slot 50, the large bolt 5 hooks a lock hook on an automobile through the lock slot 50, and the large bolt 5 can be matched with the small bolt 6 to realize three functions of unlocking, half locking and full locking. Therefore, as shown in fig. 4, the large lock tongue 5 has a full lock stopper surface 52 at a position adjacent to the lock groove 50, the large lock tongue 5 has a half lock stopper surface 51 at a position away from the lock groove 50, and the small lock tongue 6 has a lock stopper portion 60. As shown in fig. 4, when the large lock bolt 5 is not rotated, the lock groove 50 of the large lock bolt 5 is on the outside, and is in the unlocked state; as shown in fig. 5, when the large bolt 5 rotates inwards by a half, the limit part 60 of the small bolt 60 acts on the half-lock limit surface 51; as shown in fig. 6, when the large lock tongue 5 rotates inward a distance, the stopper 60 of the small lock tongue 6 acts on the full lock stopper surface 52.

The locking action of big spring bolt 5 and little spring bolt 6 is all by motor 1 driven, motor 1 installs on the lock shell, still install well straight-teeth gear 2 in the lock shell, motor 1 is connected with the transmission of well straight-teeth gear 2, as shown in figure 1, the lower extreme of well straight-teeth gear 2 is equipped with stirs little spring bolt 6 pivoted shifting block 9, well straight-teeth gear 2 meshes with big straight-teeth gear 3, big straight-teeth gear 3 is connected with stirring big spring bolt 5 pivoted and dialling arm 4 transmission, big spring bolt 5 is connected with big spring bolt return torsional spring, little spring bolt 6 is connected with little spring bolt return torsional spring. When the trunk lid needs half-locking, the motor 1 rotates positively to drive the middle straight gear 2 to rotate, the shifting block 9 at the lower end of the middle straight gear 2 shifts the small spring bolt 6 to rotate, the middle straight gear 2 rotates and simultaneously drives the large straight gear 3 to rotate, the shifting arm 4 connected with the large straight gear 3 shifts the large spring bolt 5 to rotate, and thus the large spring bolt 5 enters a half-locking position, namely the limiting part 60 of the small spring bolt 6 acts on the half-locking limiting surface 51 of the large spring bolt 5; when the trunk lid needs to be fully locked, the motor 1 rotates forwards again to complete the same steps, so that the limiting part 60 of the small bolt 6 acts on the full-locking limiting surface 52 of the large bolt 5, and full locking is realized.

Certainly, when the tail door lock is in an unlocking state, a half-locking state and a full-locking state, the motor 1 needs to be controlled to stop working, and therefore the tail door lock is also provided with an unlocking limit switch capable of sensing unlocking, a half-locking limit switch capable of sensing half-locking and a full-locking limit switch capable of sensing full-locking, and the unlocking limit switch, the half-locking limit switch and the full-locking limit switch are all electrically connected with the motor 1; of course, the three limit switches only need to act with corresponding parts and can respectively sense three states of the lock, and when the limit switches act with the parts, the motor 1 stops rotating, so that the small bolt 6 and the large bolt 5 are in the current states.

When the lock is to be unlocked, the motor 1 rotates reversely, the large straight gear 3 rotates reversely, so that the shifting arm 4 retreats, and the large lock tongue 5 returns under the action of the large lock tongue return torsion spring; the motor 1 rotates reversely, the middle straight gear 2 also rotates reversely, the shifting block 9 also rotates reversely, and the shifting block 9 does circular motion along with the middle straight gear 2, so the shifting block 9 can be clamped by the small bolt 6 without the help of an auxiliary structure, and the reverse rotation cannot be realized. Therefore, the invention also provides a shifting block return assembly on the small bolt 6, as shown in fig. 2, the shifting block return assembly comprises a rotating plate 8 rotatably arranged on the small bolt 6, a small straight gear 7 meshed with the middle straight gear 2 and a semicircular buffer block 70, the semicircular buffer block 70 is connected to the lower end of the small straight gear 7, the rotating plate 8 is provided with a baffle 81, the semicircular buffer block 70 acts on the baffle 81, the rotating plate 8 is connected with a rotating plate return torsion spring, and the rotating plate 8 is provided with a shifting part 80 acting with the shifting block 9. When the motor 1 rotates forwards and is locked, the shifting block 9 acts on the shifting part 80 of the rotating plate 8, so that the small bolt 6 is driven to rotate through the rotating plate 8; when the motor 1 is reversely rotated to unlock, the middle straight gear 2 drives the small straight gear 7 to rotate, the small straight gear 7 drives the semicircular buffer block 70 to rotate, the arc surface of the semicircular buffer block 70 acts on the baffle 81 of the rotating plate 8 firstly, the shifting part of the rotating plate 8 is positioned at the outer side, the shifting block 9 cannot be blocked by the rotating plate 8 when returning, the shifting block 9 returns normally, and the rotating plate 8 returns under the action of the rotating plate return torsion spring after the arc surface of the semicircular buffer block 70 passes.

Of course, in order to make the motor 1 drive the middle straight gear 2 to rotate, the invention is connected with a worm 10 at the output shaft of the motor 1, the worm 10 is meshed with a worm wheel 11, and the upper end of the middle straight gear 2 is connected with the center of the worm wheel 11. Through the connecting structure, the motor 1 can drive the middle straight gear 2 to rotate.

Claims

1. Full-automatic automobile tail door lock, including lock shell, big spring bolt (5) and little spring bolt (6), big spring bolt (5) all rotate with little spring bolt (6) and establish on the lock shell its characterized in that: the lock is characterized in that a motor (1) is mounted on the lock shell, the motor (1) is in transmission connection with a middle straight gear (2), a shifting block (9) for shifting a small lock tongue (6) to rotate is arranged at the lower end of the middle straight gear (2), the middle straight gear (2) is meshed with a large straight gear (3), the large straight gear (3) is in transmission connection with a shifting arm (4) for shifting a large lock tongue (5) to rotate, the large lock tongue (5) is connected with a large lock tongue return torsion spring, and the small lock tongue (6) is connected with a small lock tongue return torsion spring; the large lock bolt (5) is provided with a lock groove (50), a position, adjacent to the lock groove (50), on the large lock bolt (5) is provided with a full-lock limiting surface (52), a position, far away from the lock groove (50), on the large lock bolt (5) is provided with a half-lock limiting surface (51), the small lock bolt (6) is provided with a limiting part (60) which can sequentially act on the half-lock limiting surface (51) and the full-lock limiting surface (52), an unlocking limiting switch capable of sensing unlocking, a half-lock limiting switch capable of sensing half-lock and a full-lock limiting switch capable of sensing full-lock are further mounted on the lock shell, and the unlocking limiting switch, the half-lock limiting switch and the full-lock limiting switch are all electrically connected with the motor (1); be equipped with shifting block return assembly on little spring bolt (6), shifting block return assembly establishes rotor plate (8) on little spring bolt (6), with little spur gear (7) and semicircle buffer block (70) of well spur gear (2) meshing including rotating, the lower extreme in little spur gear (7) is connected in semicircle buffer block (70), rotor plate (8) have baffle (81), semicircle buffer block (70) are used in baffle (81), rotor plate (8) and rotor plate return torsional spring coupling, rotor plate (8) have with shifting block (9) the portion of stirring (80) of emergence effect.

2. The fully automatic vehicle tailgate lock according to claim 1, wherein: the output shaft of motor (1) is connected with worm (10), worm (10) and turbine (11) meshing, the upper end of well straight-teeth gear (2) is connected with the center of turbine (11).