CN201187193Y

CN201187193Y - Active blocking mechanism of automobile door

Info

Publication number: CN201187193Y
Application number: CN 200820098011
Authority: CN
Inventors: 李洲荣
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Lifan Technology Group Co Ltd
Priority date: 2008-04-09
Filing date: 2008-04-09
Publication date: 2009-01-28
Anticipated expiration: 2018-04-09

Abstract

The utility model discloses an active locking mechanism for a vehicle door. The active locking mechanism comprises a lock catch (1) and a forked lock hook (2), wherein, the lock catch (1) is arranged on the vehicle door; the middle part of the lock hook (2) is arranged on the door frame through a rotating shaft (3); and when the vehicle door is opened or closed, the fork horn end of the lock hook (2) is buckled with or separated from the lock catch (1). The active locking mechanism is characterized in that the fork handle end of the lock hook (2) is connected to the push rod (4) of a driving mechanism through a swivel pin; and the driving mechanism is controlled by a driving circuit. The active locking mechanism has the outstanding advantages that the damage to the vehicle door and the door frame can be avoided when the shutdown force is overlarge; and the vehicle door can be ensured to be completely closed when the shutdown force is smaller. The device not only can avoid the collision damage to the vehicle door and the door lock, but also can enable the vehicle door shutdown to be easier; besides, the door lock is more reliable, thereby enabling the function of the door lock to be more complete, and prolonging the service life of the door lock.

Description

Car door Active Locking mechanism

Technical field

The utility model belongs to car door control technology field, specifically, relates to a kind of car door Active Locking mechanism of car.

Background technology

In auto manufacturing; the sedan door locking mechanism is simple; comprise that mainly fork-shaped latch hook and snap close constitute; wherein snap close is installed on the car door; the middle part of latch hook is installed on the doorframe through rotating shaft; when door contact interrupter, the intersection end of described latch hook is with described snap close snapping or separate, and need push hard car door when closing; vehicle door bonnet lock is pushed in the prong of doorframe latch hook by inertia and to lock; it is firmly excessive to close the door, and can cause car door excessive to the bump of doorframe, the infringement that car door and door lock produce because of bump; also having big noise produces; it is firmly less to close the door, and usually the situation that car door can not be closed fully can take place, and this safety to the personnel that ride is also influential.

The shortcoming of existing car door lock locking mechanism is: it is firmly excessive to close the door, and can cause the infringement of car door and doorframe, and it is firmly less to close the door, and car door can not be closed fully.

The utility model content

The purpose of this utility model provides a kind of light car door Active Locking mechanism, exerts oneself can prevent the infringement of car door and doorframe when excessive closing the door, and closes the door firmly hour, guarantees complete closed door.

For achieving the above object, the utility model is explained a kind of car door Active Locking mechanism, comprise snap close (1) and fork-shaped latch hook (2), wherein snap close is installed on the car door, the middle part of latch hook is installed on the doorframe through rotating shaft (3), when door contact interrupter, the intersection end of described latch hook (2) is with described snap close (1) snapping or separate, and its key is: the fork handle end of described latch hook (2) is connected through shipping and reselling on another market on the push rod (4) of driving mechanism;

Described driving mechanism is controlled by drive circuit, the switch (S) that this drive circuit is made of described snap close (1) and latch hook (2), electric capacity (C), switch triode (Q1), ground resistance (R), first resistance (R1), second resistance (R2), the 3rd resistance (R3), amplifier (U), triode (Q2) and pull down resistor (R4) are formed, wherein the input of switch (S) connects the direct current high level, output is connected in series the base stage that described electric capacity (C) back connects described switch triode (Q1), described first resistance of the base stage string of this switch triode (Q1) (R1) back ground connection, the colelctor electrode of this switch triode (Q1) connects the output of described switch (S), the described ground resistance of emitter stage string (R) back ground connection, this emitter stage also connects the positive input of described amplifier (U), described second resistance of the reverse input end string of this amplifier (U) (R2) back ground connection, between the reverse input end of amplifier (U) and the output and connect described the 3rd resistance (R3), this output is also exported the base stage that amplifying signal is given described triode (Q2), the colelctor electrode of this triode (Q2) connects the output of described switch (S), the described pull down resistor of emitter stage string (R4) the back ground connection of triode (Q2), the emitter stage of this triode (Q2) also output drive signal is given described driving mechanism.

Described driving mechanism also comprises relay (J), motor (M) and gear (5), one termination of its repeat circuit (J) coil windings is received the driving signal of described triode (Q2) output, the other end ground connection of coil windings, the normal open switch of this relay (J) is serially connected on the current supply circuit of described motor (M), admittedly overlap described gear (5) on the output shaft of this motor (M), this gear (5) and described push rod (4) gear teeth meshing.

When exerting oneself closed door, push rod (4) and gear (5) can produce resistance when car door is about to knocking door case, and then car door is slowly closed, and so just avoid the bump of car door to doorframe.When snap close (1) with after latch hook (2) contacts, switch (S) closure, drive circuit forms pulse current, the moment work of control driving mechanism, the push rod of driving mechanism (4), the intersection end that promotes latch hook (2) initiatively snapping is lived snap close (1).

Remarkable result of the present utility model is: exert oneself can prevent the infringement of car door and doorframe when excessive closing the door, close the door firmly hour, guarantee complete closed door.The infringement that such device has not only avoided car door and door lock to produce because of bump, and closed door become easily, door lock is also more reliable, make door lock function more comprehensively, prolonged the application life of door lock.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the circuit connecting relation figure of drive circuit and driving mechanism.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

As shown in Figure 1, 2:

A kind of car door Active Locking mechanism, comprise snap close (1) and fork-shaped latch hook (2), wherein snap close (1) is installed on the car door, the middle part of latch hook (2) is installed on the doorframe through rotating shaft (3), when door contact interrupter, the intersection end of described latch hook (2) is with described snap close (1) snapping or separate, and the fork handle end of described latch hook (2) is connected through shipping and reselling on another market on the push rod (4) of driving mechanism;

As shown in Figure 1:

Described driving mechanism also comprises relay (J), motor (M) and gear (5), one termination of its repeat circuit (J) coil windings is received the driving signal of described triode (Q2) output, the other end ground connection of coil windings, the normal open switch of this relay (J) is serially connected on the current supply circuit of described motor (M), motor (M) is installed on the doorframe, admittedly overlap described gear (5) on the output shaft of this motor (M), this gear (5) and described push rod (4) gear teeth meshing.

Operating principle of the present utility model is:

When exerting oneself closed door, push rod (4) and gear (5) can produce resistance when car door is about to knocking door case, and then car door is slowly closed, and so just avoid the bump of car door to doorframe.When snap close (1) with after latch hook (2) contacts, switch (S) closure, produce electric current moment by electric capacity (C), form pulse, after switch triode (Q1) and amplifier (U) amplification, form pulse current and drive triode (Q2) work, triode (Q2) control relay (J) moment conducting, relay (J) drive motors (M) moment works, driven gear (5) and push rod (4) operation, and the intersection end that push rod (4) promotes latch hook (2) initiatively snapping is lived snap close (1).

When opening car door, car door drives latch hook (2) reduction, and latch hook (2) promotes push rod (4) return.

Claims

1, a kind of car door Active Locking mechanism, comprise snap close (1) and fork-shaped latch hook (2), wherein snap close (1) is installed on the car door, the middle part of latch hook (2) is installed on the doorframe through rotating shaft (3), when door contact interrupter, the intersection end of described latch hook (2) is with described snap close (1) snapping or separate, and it is characterized in that: the fork handle end of described latch hook (2) is connected through shipping and reselling on another market on the push rod (4) of driving mechanism;

2, car door Active Locking according to claim 1 mechanism, it is characterized in that: described driving mechanism also comprises relay (J), motor (M) and gear (5), one termination of its repeat circuit (J) coil windings is received the driving signal of described triode (Q2) output, the other end ground connection of coil windings, the normal open switch of this relay (J) is serially connected on the current supply circuit of described motor (M), admittedly overlap described gear (5) on the output shaft of this motor (M), this gear (5) and described push rod (4) gear teeth meshing.