CN110593675A

CN110593675A - Automobile back door trunk door lock

Info

Publication number: CN110593675A
Application number: CN201910807833.1A
Authority: CN
Inventors: 蒋庆琛
Original assignee: U Shin Manufacturing Wuxi Co Ltd
Current assignee: U Shin Manufacturing Wuxi Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2019-12-20

Abstract

The invention discloses a trunk door lock of a back door of an automobile, which relates to the field of the back door lock and the trunk door lock of a passenger car, and comprises a large shell and a memory rod, wherein the top of the large shell is respectively and fixedly provided with a motor installation groove and a worm connecting groove, a motor is fixedly arranged in the motor installation groove, a worm is rotatably connected in the worm connecting groove through a bearing, a second gear shaft is fixedly connected on the inner side wall of the large shell and the position adjacent to the worm connecting groove, the memory rod comprises a rod body fixedly arranged on the inner wall of the large shell, one end of the rod body adjacent to a pawl boot is fixedly connected with a clamping plate, when the motor indirectly drives the crank gear to rotate, the crank gear directly stirs the pawl boot to rotate, the memory rod is converted from a failure position to an effective position, then the memory rod props the pawl boot, and under the condition, the back door or the trunk door, the door lock is not locked again, so that a so-called memory function is realized.

Description

Automobile back door trunk door lock

Technical Field

The invention relates to the technical field of back door locks and trunk door locks of passenger vehicles, in particular to a trunk door lock of a back door of an automobile.

Background

Automobile back door generally comprises back door inner panel, back door interior plaque, back door outer plaque, the spoiler, the electrical part, the hinge, constitution such as back door lock and bracing piece, trunk door is also called the car tail-gate, it is exactly the electronic trunk that really, indicate the trunk to adopt electronic or the remote control mode to open or close, if need open the trunk, only need press the button in getting off or remote control key, the trunk will oneself open, if will close the trunk, just press the back button in the trunk or the car in close behind the button, or remote control key spare box will oneself close, no matter be car back door or tail-gate, self all possesses the lock structure.

The memory function is that the back door lock or the trunk lock keeps an unlocked state under the condition that a user still stays at a closed position under the action of self weight or external force (such as snow cover) after the back door or the trunk door is unlocked electrically, and when the user manually lifts the back door or the trunk door at the closed position, the back door or the trunk door can be smoothly opened without secondary unlocking.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the trunk door lock of the automobile back door, which solves the problem that the door lock structure of the back door and the trunk door of the existing automobile does not have a memory function when in use, so that the practicability is not high in the actual use process.

In order to achieve the purpose, the invention is realized by the following technical scheme: a trunk door lock of an automobile backdoor comprises a large shell, wherein a motor mounting groove and a worm connecting groove are respectively and fixedly arranged at the top of the large shell, a motor is fixedly mounted inside the motor mounting groove, a worm is rotatably connected inside the worm connecting groove through a bearing, a second gear shaft is fixedly connected on the inner side wall of the large shell and the position adjacent to the worm connecting groove, a double gear is sleeved on the outer part of the second gear shaft, a first gear shaft is fixedly connected inside the large shell and the position adjacent to the second gear shaft, a crank gear is sleeved on the outer part of the first gear shaft, a ratchet wheel is fixedly connected at the bottom of the inner side wall of the large shell in a riveting mode, and a pawl boot is fixedly connected at the bottom of the inner side wall of the large shell and the position adjacent to the ratchet wheel in a riveting mode, the ratchet wheel is characterized in that a pawl is fixedly connected to the end face of one side of the bottom of the pawl boot, a memory rod is fixedly connected to the position, located above the ratchet wheel, of the inner side wall of the large shell in a hinged mode through a spline shaft, and a reset type connecting structure is formed between the memory rod and the spline shaft arranged on the inner side wall of the large shell through a memory rod spring.

The memory rod comprises a rod body fixedly arranged on the inner wall of the large shell, one end of the rod body adjacent to the pawl boot is fixedly connected with a clamping plate, and the upper end and the lower end of one end of the memory rod adjacent to the ratchet wheel are respectively and correspondingly connected with a first buffering elastic sheet and a second buffering elastic sheet.

Preferably, a communicating structure is formed between the motor mounting groove and the worm connecting groove through a through hole, and the driving end of the motor penetrates through the through hole and is finally connected with the driven end of the worm in series.

Preferably, the output end of the worm is in meshed connection with the driven end of the double gear, and the output end of the double gear is in meshed connection with the driven end of the crank gear.

Preferably, the pawl boot and the pawl are two components with the same shape, structure and size, and the large shell, the pawl boot and the pawl form a tandem riveting structure through a first riveting shaft.

Preferably, the large shell and the ratchet wheel form a tandem riveting structure through a second riveting shaft.

Preferably, a clamping groove is fixedly formed in the back face of the position, adjacent to the memory rod, of the pawl boot, and when the memory rod is in an effective state, the end portion of the clamping plate is located inside the clamping groove.

Preferably, when the memory rod is in a failure state, the first buffering elastic sheet is in contact with the end part of the pawl boot, and the second buffering elastic sheet is in contact with the top end face of the ratchet wheel.

Advantageous effects

The invention provides a trunk door lock of an automobile back door. Compared with the prior art, the method has the following beneficial effects:

1. the memory rod is arranged in the door locks of the automobile back door and the trunk door, wherein the memory rod comprises a rod body fixedly arranged on the inner wall of a large shell, one end of the rod body adjacent to the pawl boot is fixedly connected with a clamping plate, the upper end part and the lower end part of one end of the memory rod adjacent to the ratchet wheel are respectively and correspondingly connected with a first buffering elastic sheet and a second buffering elastic sheet, when a motor indirectly drives a crank gear to rotate, the crank gear directly stirs the pawl boot to rotate, the memory rod is changed from a failure position to an effective position, then the memory rod props against the pawl boot, under the condition, the door lock cannot be locked again even if the automobile back door or the trunk door is in a closing position, and therefore the so-called memory function is achieved.

2. This car back of body door suitcase lock through be provided with first buffering shell fragment and second buffering shell fragment on memory pole and the adjacent position of ratchet respectively, when memory pole was in the position that became invalid, the lock was when the unblock, and the impact force and the vibrations that memory pole rotation in-process carried can effectively be alleviated to first buffering shell fragment and second buffering shell fragment, consequently when having reduced the noise, has prolonged the life of whole lock again.

Drawings

FIG. 1 is a schematic illustration of an explosive structure according to the present invention;

FIG. 2 is a schematic structural view of a memory stick of the present invention in an active state;

FIG. 3 is a schematic structural view of the memory stick of the present invention in a failure state;

FIG. 4 is a schematic view of a memory stick according to the present invention.

In the figure: 1. a motor; 2. a worm; 3. a large housing; 4. a double gear; 5. a crank gear; 6. a first gear shaft; 7. a pawl boot; 8. a pawl; 9. a first rivet shaft; 10. a ratchet wheel; 11. a memory lever; 111. a shaft body; 112. a first buffering elastic sheet; 113. a second buffering elastic sheet; 114. clamping a plate; 12. a memory lever spring; 13. a second riveting shaft; 14. a second gear shaft; 15. a motor mounting groove; 16. the worm is connected with the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a trunk door lock of an automobile backdoor comprises a large shell 3, the top of the large shell 3 is respectively and fixedly provided with a motor installation groove 15 and a worm connecting groove 16, a motor 1 is fixedly installed inside the motor installation groove 15, the inside of the worm connecting groove 16 is rotatably connected with a worm 2 through a bearing, a communicating structure is formed between the motor installation groove 15 and the worm connecting groove 16 through a through hole, the driving end of the motor 1 penetrates through the through hole and is finally connected with the driven end of the worm 2 in series, a second gear shaft 14 is fixedly connected on the inner side wall of the large shell 3 and the position adjacent to the worm connecting groove 16, a double gear 4 is movably sleeved outside the second gear shaft 14, a first gear shaft 6 is fixedly connected inside the large shell 3 and the position adjacent to the second gear shaft 14, a crank gear 5 is movably sleeved outside the first gear shaft 6, the output end of the worm 2 is meshed with the driven end of the double gear 4, the output end of the double gear 4 is meshed with the driven end of the crank gear 5, the bottom of the inner side wall of the large shell 3 is fixedly connected with a ratchet 10 in a riveting mode, a tandem riveting structure is formed between the large shell 3 and the ratchet 10 through a second riveting shaft 13, the bottom of the inner side wall of the large shell 3 and the position adjacent to the ratchet 10 are also fixedly connected with a pawl shoe 7 in a riveting mode, a pawl 8 is fixedly connected to the end surface of one side of the bottom of the pawl shoe 7, the pawl shoe 7 and the pawl 8 are two components with the same shape, structure and size, a tandem riveting structure is formed among the large shell 3, the pawl shoe 7 and the pawl 8 through a first riveting shaft 9, a memory rod 11 is fixedly connected to the position, above the ratchet 10, of the inner side wall of the large shell 3 in a spline shaft hinged mode, a memory rod 11 and a spline shaft arranged on the inner side wall of the large shell 3 form a reset type connecting structure through a memory rod spring 12.

Referring to fig. 4, the memory rod 11 includes a rod body 111 fixedly installed on the inner wall of the large housing 3, one end of the rod body 111 adjacent to the pawl boot 7 is fixedly connected with a snap-in plate 114, the upper and lower ends of one end of the memory rod 11 adjacent to the ratchet 10 are respectively and correspondingly connected with a first buffering elastic plate 112 and a second buffering elastic plate 113, a snap-in groove is fixedly disposed on the back surface of the position of the pawl boot 7 adjacent to the memory rod 11, when the memory rod 11 is in an effective state, the end of the snap-in plate 114 is located inside the snap-in groove, when the memory rod 11 is in a failure state, the first buffering elastic plate 112 contacts with the end of the pawl boot 7, and the second buffering elastic plate 113.

When the lock is used, after an unlocking signal is given by a user, the electric control unit of the whole vehicle energizes the lock body motor 1, the motor 1 drives the worm 2 to rotate after the energization, the worm drives the double gear 4 and the crank gear 5 to rotate, then the crank gear 5 drives the pawl shoe 7 to separate the pawl 8 arranged on the pawl shoe 7 from the ratchet wheel 10, so that the unlocking is realized, the crank gear 5 drives the pawl shoe 7 and simultaneously drives the memory rod 11 to the effective position (please refer to figures 2 and 3), after the effective position is reached, the clamping plate 114 is positioned in the clamping groove arranged on the back of the pawl shoe 7, so that the memory rod 11 is propped against the pawl shoe 7, and in this situation, the door is in the closed position, the door lock cannot be locked again, so-called memory function is realized, and then the user can smoothly open the back door without secondary unlocking, namely, the ratchet wheel 10 moves towards the unlocking direction, during the movement, the ratchet 10 will shift the memory lever 11 to the inactive position, thereby completing a work cycle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile back door trunk lock, includes big casing (3), its characterized in that: the top of the big shell (3) is respectively and fixedly provided with a motor mounting groove (15) and a worm connecting groove (16), the motor (1) is fixedly mounted inside the motor mounting groove (15), the inside of the worm connecting groove (16) is rotatably connected with a worm (2) through a bearing, a second gear shaft (14) is fixedly connected to the inner side wall of the big shell (3) and the position adjacent to the worm connecting groove (16), a double gear (4) is sleeved outside the second gear shaft (14), a first gear shaft (6) is fixedly connected to the inside of the big shell (3) and the position adjacent to the second gear shaft (14), a crank gear (5) is sleeved outside the first gear shaft (6), and a ratchet wheel (10) is fixedly connected to the bottom of the inner side wall of the big shell (3) through a riveting mode, the bottom of the inner side wall of the large shell (3) is fixedly connected with a pawl boot (7) in a riveting mode at a position adjacent to the ratchet wheel (10), a pawl (8) is fixedly connected to the end face of one side of the bottom of the pawl boot (7), a memory rod (11) is fixedly connected to the position, above the ratchet wheel (10), of the inner side wall of the large shell (3) in a manner of being hinged through a spline shaft, and a reset type connecting structure is formed between the memory rod (11) and the spline shaft arranged on the inner side wall of the large shell (3) through a memory rod spring (12);

the memory rod (11) comprises a rod body (111) fixedly arranged on the inner wall of the large shell (3), one end of the rod body (111) adjacent to the pawl boot (7) is fixedly connected with a clamping plate (114), and the upper end part and the lower end part of one end of the memory rod (11) adjacent to the ratchet wheel (10) are respectively and correspondingly connected with a first buffering elastic sheet (112) and a second buffering elastic sheet (113).

2. The vehicle tailgate door lock according to claim 1, wherein: the motor mounting groove (15) and the worm connecting groove (16) form a communicating structure through a formed through hole, and the driving end of the motor (1) penetrates through the through hole and is finally connected with the driven end of the worm (2) in series.

3. The vehicle tailgate door lock according to claim 1, wherein: the output end of the worm (2) is in meshed connection with the driven end of the double gear (4) and the output end of the double gear (4) is in meshed connection with the driven end of the crank gear (5).

4. The vehicle tailgate door lock according to claim 1, wherein: pawl boots (7) and pawl (8) are two shape, structure and two components that the size is all the same, all form tandem type riveted structure through a first riveting axle (9) between big casing (3), pawl boots (7) and pawl (8) the three.

5. The vehicle tailgate door lock according to claim 1, wherein: the large shell (3) and the ratchet wheel (10) form a tandem riveting structure through a second riveting shaft (13).

6. The vehicle tailgate door lock according to claim 1, wherein: the back of the position, adjacent to the memory rod (11), of the pawl boot (7) is fixedly provided with a clamping groove, and when the memory rod (11) is in an effective state, the end part of the clamping plate (114) is positioned in the clamping groove.

7. The vehicle tailgate door lock according to claim 6, wherein: when the memory rod (11) is in a failure state, the first buffering elastic sheet (112) is in contact with the end part of the pawl boot (7), and the second buffering elastic sheet (113) is in contact with the top end face of the ratchet wheel (10).