CN203230233U

CN203230233U - Locking mechanism for preventing serial car crash inertia from mistakenly opening door

Info

Publication number: CN203230233U
Application number: CN 201320219221
Authority: CN
Inventors: 阮联钧; 王礼胜; 马佳力; 李彬
Original assignee: Shanghai Huofu Automobile Lock Co Ltd
Current assignee: Shanghai Huofu Automobile Lock Co Ltd
Priority date: 2013-04-26
Filing date: 2013-04-26
Publication date: 2013-10-09
Anticipated expiration: 2023-04-26

Abstract

The utility model relates to the field of vehicular handle bases, in particular to a locking mechanism for preventing serial car crash inertia from mistakenly opening a door. The locking mechanism comprises a base (1) and a handle body (7). The locking mechanism is characterized in that the locking mechanism further comprises a rotary shaft (2), a locking and resetting torsion spring (3), an inertia locking block (4), a balancing and resetting torsion spring (5) and a balancing block (6), a locking block groove is formed in the base (1), two ends of the locking and resetting torsion spring (3) are abutted against the locking block groove and the inertia locking block (4) respectively, the inertia locking block (4) is composed of a locking block (41), a locking wheel (42) and a locking claw (43), a balancing block groove is further formed in the base (1), and two ends of the balancing and resetting torsion spring (5) are abutted against the balancing block groove and the balancing block (6) respectively. The locking mechanism for preventing the serial car crash inertia from mistakenly opening the door is simple in structure, convenient to mount, high in adaptability, safe and reliable.

Description

Anti-a chain of bump inertia opens by mistake the locking device of car door

Technical field

The present invention relates to vehicle door handle pedestal field, be specially the locking device that a kind of anti-a chain of bump inertia opens by mistake car door.

Background technology

Automobile handle is used for car door and car body pinning fixing, and handle is made up of pedestal, handlebody, balance weight and balance return button spring, and balance weight is fixed on the pedestal with balance return button spring, and handlebody is installed on the balance weight.Under the normal condition, under the effect of balance return button spring, handlebody has the movement tendency of applying car door, has so just played handle and the fixing effect of car door.But, the retaining mechanism of present this balance weight-balance return button spring can only guarantee that 80g(g is acceleration of gravity) safety requirements, and the acceleration that car door impact when being subjected to lateral impact produces can reach more than the 90g, at this moment balance return button spring can't guarantee handlebody applying car door, car door can accident be opened, and leads to a disaster.

Summary of the invention

In order to overcome the defective of prior art, a kind of simple in structure, easy for installation, arrangements for automotive doors handle that compliance is strong, safe and reliable is provided, the invention discloses the locking device that a kind of anti-a chain of bump inertia opens by mistake car door.

The present invention reaches goal of the invention by following technical solution:

A kind of anti-a chain of bump inertia opens by mistake the locking device of car door, comprises pedestal and handlebody, and handlebody is installed on the lateral surface of pedestal, it is characterized in that: also comprise rotating shaft, locking return torsion spring, inertial lock stops, balance return torsion spring and balance weight,

Have the latch groove on the pedestal, rotating shaft is with locking return torsion spring outward, and the two ends of rotating shaft are embedded in respectively on the inwall of latch groove both sides after the two ends of inertial lock stops pass respectively again, and the two ends of locking return torsion spring prop up latch groove and inertial lock stops respectively;

The inertial lock stops is made up of lock dog, lock wheel and lock pawl, and lock dog is connected by the lock wheel with the lock pawl, and lock dog is embedded in the latch groove, and rotating shaft is installed in the lock wheel;

Also have the balance weight groove on the pedestal, the balance weight groove is located at a side of latch groove, and balance return torsion spring and balance weight all are enclosed within the balance weight groove, and the two ends of balance return torsion spring prop up balance weight groove and balance weight respectively, and the lock pawl is over against balance weight;

Handlebody is installed between balance weight outer and handlebody and the balance weight to movingly;

The coefficient of stiffiness of locking return torsion spring is less than the coefficient of stiffiness of balance return torsion spring.

Described anti-a chain of bump inertia opens by mistake the locking device of car door, and it is characterized in that: the coefficient of stiffiness of locking return torsion spring is 20%～50% of the balance return torsion spring coefficient of stiffiness.

When the present invention used, the inertial lock stops was locked pawl and is lifted under the effect of locking return torsion spring, and leans against on the pedestal, and balance weight is under the effect of balance return torsion spring, and balance weight props up handlebody makes handlebody not be opened together with car door; During under normal circumstances by handlebody opening and closing car door, the pulling of handlebody is not subjected to the influence of inertial lock stops.When suffering that the quick a chain of repeated impact power of reveal face or continuous high speed zig zag produces under the situation of centrifugal force, it is above and be far longer than the Generally Recognized as safe requirement of 80g that this moment, the acceleration that is subjected to of car door can reach 100g, if there are not other safety measures, then the torsion of balance return torsion spring generation does not overcome impact or centrifugal force, make balance weight overcome balance return torsion spring torsion and and handlebody throw off, handlebody no longer is subjected to the active force of balance weight and will moves along the direction of car door opening, car door is opened, thereby leads to a disaster.For this reason, the present invention has designed inertial lock stops with certain angle cam to form locking device with pedestal, when suffering that a chain of external force collision in car door side or continuous high speed zig zag produce centrifugal force, because the torsion acceleration of locking return torsion spring is 60g less than the torsion speed of balance return torsion spring is 90g, the inertial lock stops will overcome the effect of torsion spring torsion prior to balance weight, lock dog and the pedestal of inertial lock stops lock wheel one side are blocked mutually, the lock pawl of inertial lock stops lock wheel opposite side then pins balance weight simultaneously, pedestal like this, the inertial lock stops pins in twos and intermeshes with balance weight is in the same place, owing to be movingly between handlebody and the balance weight, when balance weight be lockable can not rotate after, also having pinned handlebody accordingly can't move, handlebody can not become flexible like this, car door also can't be opened, thereby has reached the purpose of security protection; When needing to recover the normal position, then oppositely promote handlebody, make the balance weight return and break away from the inertial lock stops, the inertial lock stops lifts under the effect of locking return torsion spring, the inertial lock stops is returned to the normal position, and handle can normally be opened car door, and can normally use.

The invention has the beneficial effects as follows: simple in structure, easy for installation, compliance is strong, and is safe and reliable.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation that pedestal among the present invention, rotating shaft and inertial lock stops are connected;

Fig. 3 is that balance weight withstands the structural representation that handlebody prevents car door opening under the normal condition;

Fig. 4 is that balance weight withstands the generalized section that handlebody prevents car door opening under the normal condition;

Fig. 5 be car door when suffering the side direction high acceleration handlebody structural representation of unlatching trend is arranged;

Fig. 6 is the structural representation of inertial lock stops;

Fig. 7 be car door when suffering the side direction high acceleration inertial lock stops pin the structural representation of balance weight;

Fig. 8 is the car door generalized section that the inertial lock stops pins balance weight when suffering the side direction high acceleration.

The specific embodiment

Below further specify the present invention by specific embodiment.

Embodiment 1

A kind of anti-a chain of bump inertia opens by mistake the locking device of car door, comprises pedestal 1, rotating shaft 2, locking return torsion spring 3, inertial lock stops 4, balance return torsion spring 5, balance weight 6 and handlebody 7, and as shown in Figure 1, concrete structure is:

Have the latch groove on the pedestal 1, the latch groove is shown in A among Fig. 1, the rotating shaft 2 outer locking return torsion springs 3 that are with, the two ends of rotating shaft 2 are embedded in respectively on the inwall of latch groove both sides after the two ends of inertial lock stops 4 pass respectively again, and the two ends of locking return torsion spring 3 prop up latch groove and inertial lock stops 4 respectively;

Inertial lock stops 4 is made up of lock dog 41, lock wheel 42 and lock pawl 43 as shown in Figure 6, and lock dog 41 is connected by lock wheel 42 with lock pawl 43, and lock dog 41 is embedded in the latch groove, and rotating shaft 2 is enclosed within the lock wheel 42;

Also have the balance weight groove on the pedestal 1, the balance weight groove is located at a side of latch groove, and balance return torsion spring 5 and balance weight 6 all are enclosed within the balance weight groove, and the two ends of balance return torsion spring 5 prop up balance weight groove and balance weight 6 respectively, and lock pawl 43 is over against balance weight 6;

Handlebody 7 is installed in outside the balance weight 6 on the lateral surface of pedestal 1, between handlebody 7 and the balance weight 6 for movingly;

The coefficient of stiffiness of locking return torsion spring 3 is less than the coefficient of stiffiness of balance return torsion spring 5, the coefficient of stiffiness of locking return torsion spring 3 20%～50% of weighing apparatus return torsion spring 5 coefficients of stiffiness of making even, and present embodiment gets 30%.

When present embodiment uses, as shown in Figure 2, inertial lock stops 4 is locked pawl 43 and is lifted under the effect of locking return torsion spring 3, and leans against on the b face of pedestal 1, balance weight 6 is under the effect of balance return torsion spring 5, and balance weight 6 props up handlebody 7 makes handlebody 7 not be opened together with car door; Under normal circumstances, as shown in Figure 3 and Figure 4, during by handlebody 7 opening and closing car doors, the pulling of handlebody 7 is not subjected to the influence of inertial lock stops 4, and arrow is depicted as the unlatching car door direction of handlebody 7 among Fig. 3.When suffering that the quick a chain of repeated impact power of reveal face or continuous high speed zig zag produces under the situation of centrifugal force, as shown in Figure 5, this moment, the acceleration that is subjected to of car door can reach shown in a arrow among Fig. 5 more than the 100g and greater than the Generally Recognized as safe requirement of 90g, if there are not other safety measures, then the torsion of balance return torsion spring 5 generations does not overcome impact or centrifugal force, make balance weight 6 shown in ω arrow among Fig. 5, overcome balance return torsion spring 5 torsion and and handlebody 7 throw off, handlebody 7 no longer is subjected to the active force of balance weight 6 and will moves shown in the F arrow among Fig. 5 along the direction of car door opening, car door is opened, thereby leads to a disaster.For this reason, present embodiment adopts the inertial lock stops 4 with certain angle cam to form locking device with pedestal 1, as shown in Figure 7 and Figure 8, when suffering that a chain of external force collision in car door side or continuous high speed zig zag produce centrifugal force, because the torsion of locking return torsion spring 3 is less than the torsion of balance return torsion spring 5, inertial lock stops 4 will overcome the effect of torsion spring torsion prior to balance weight 6, lock dog 41 and the pedestal 1 of inertial lock stops 4 lock wheels 42 1 sides are blocked mutually, inertial lock stops 4 locks are taken turns 43 pinning balance weights 6 of lock pawl of 42 opposite sides simultaneously, pedestal 1 like this, inertial lock stops 4 and balance weight 6 pin in twos and intermesh to be seen together, owing to be movingly between handlebody 7 and the balance weight 6, when balance weight 6 be lockable can not rotate after, also having pinned handlebody 7 accordingly can't move, handlebody 7 can not become flexible like this, car door also can't be opened, thereby has reached the purpose of security protection; When needing to recover the normal position, then oppositely promote handlebody 7, make balance weight 6 returns and break away from inertial lock stops 4, inertial lock stops 4 lifts under the effect of locking return torsion spring 3, inertial lock stops 4 is returned to the normal position, and handle 7 can normally be opened car door, and can normally use.

Claims

1. an anti-chain of rings clashes into the locking device that inertia opens by mistake car door, comprise pedestal (1) and handlebody (7), handlebody (7) is enclosed within on the lateral surface of pedestal (1), it is characterized in that: also comprise rotating shaft (2), locking return torsion spring (3), inertial lock stops (4), balance return torsion spring (5) and balance weight (6)

Pedestal has the latch groove on (1), the outer locking return torsion spring (3) that is with of rotating shaft (2), the two ends of rotating shaft (2) are embedded in respectively on the inwall of latch groove both sides after the two ends of inertial lock stops (4) pass respectively again, and the two ends of locking return torsion spring (3) prop up latch groove and inertial lock stops (4) respectively;

Inertial lock stops (4) is made up of lock dog (41), lock wheel (42) and lock pawl (43), and lock dog (41) is connected by lock wheel (42) with lock pawl (43), and lock dog (41) is embedded in the latch groove, and rotating shaft (2) is enclosed within the lock wheel (42);

Pedestal also has the balance weight groove on (1), the balance weight groove is located at a side of latch groove, balance return torsion spring (5) and balance weight (6) all are enclosed within the balance weight groove, and the two ends of balance return torsion spring (5) prop up balance weight groove and balance weight (6) respectively, and lock pawl (43) is over against balance weight (6);

Handlebody (7) is installed between balance weight (6) outer and handlebody (7) and the balance weight (6) to movingly;

The coefficient of stiffiness of locking return torsion spring (3) is less than the coefficient of stiffiness of balance return torsion spring (5).

2. anti-a chain of bump inertia as claimed in claim 1 opens by mistake the locking device of car door, and it is characterized in that: the coefficient of stiffiness of locking return torsion spring (3) is 20%～50% of balance return torsion spring (5) coefficient of stiffiness.