CN2849068Y - Door lock for vehicle - Google Patents

Abstract

A vehicle door lock comprising an outer handle opening arm (1), an inner handle opening arm (2), a child lock control arm (3), an inner handle force transmission arm (4) and a mounting plate (7), the outer handle opening arm (1) includes a pressure bearing plate (1a), the child lock control arm (3) includes a pressure bearing protrusion (5), wherein the door lock also includes a linkage rod (6) that is rotatably connected to the mounting plate (7), The linkage lever (6) includes a pressure bearing surface (6a) cooperating with the pressure bearing plate (1a) of the outer handle opening arm (1) and a pressure bearing surface cooperating with the pressure bearing protrusion (5) of the child lock control arm (3) (6b). The vehicle door lock provided by the utility model can complete the unlocking action of the child safety lock when the vehicle door is opened by opening the handle outside the vehicle, so that the inconvenience caused to passengers getting off the vehicle due to the unclosed child safety lock can be avoided. The vehicle door lock also has the advantages of simple structure, easy operation and the like.

Description

A door lock for a vehicle

technical field

The utility model relates to a door lock for a vehicle, in particular to a door lock for a vehicle which can complete the unlocking action of a child safety lock while opening the door by opening a handle outside the vehicle.

Background technique

With the continuous development of the automobile industry, vehicle door locks have developed towards specialization. Although the shape and structure of the door locks of various models are slightly different, their main functions are basically the same, generally including internal and external opening, internal and external locking, central control locking, driver's door anti-mislocking, rear door child safety locks, etc. . Among them, the rear door child safety lock is specially set up to prevent accidents caused by accidents caused by children opening the door by mistake due to tampering with the door handle in the rear seat. And usually the car door is provided with a lever, which can be selected to open or close the child safety lock function as required. But the reality is that most passengers don’t necessarily remember to turn off the child safety lock function after using it, and most passengers don’t pay attention to whether the child safety lock is on or off before getting in the car, so If a passenger who does not need the protection of the child safety lock function gets on the car when the child safety lock is turned on, when the passenger gets off the car, he will not be able to open the door and get out of the car by opening the handle because of the child safety lock function. And must have other people to help to open the door and just can get off by opening the handle outside the car, therefore will bring a lot of inconvenience to the passenger.

Utility model content

The purpose of the utility model is to provide a vehicle door lock that can complete the unlocking action of the child safety lock while opening the door by opening the handle outside the vehicle.

The vehicle door lock provided by the utility model includes an outer handle opening arm 1, an inner handle opening arm 2, a child lock control arm 3, an inner handle force transmission arm 4 and a mounting plate 7, an inner handle opening arm 2 and an inner handle force transmission arm 4 Rotately connected to the mounting plate 7, the inner handle opening arm 2 includes a pressure-bearing surface 2a, the inner handle force transmission arm 4 includes a chute 4a and a pressure-bearing surface 4b, the child lock control arm 3 includes a pressure-bearing protrusion 5, and the outer handle opens The arm 1 includes a pressure bearing plate 1a, the pressure bearing plate 1a of the outer handle opening arm 1 cooperates with the pressure bearing surface 4b of the inner handle force transmission arm 4, and the pressure bearing protrusion 5 of the child lock control arm 3 is assembled with the inner handle force transmission arm 4 and cooperate with the pressure-bearing surface 2a of the inner handle opening arm 2, wherein the door lock also includes a linkage lever 6 that is rotatably connected to the mounting plate 7, and the linkage lever 6 includes a connection with the outer handle opening arm 1. The pressure bearing surface 6 a matched with the pressure bearing plate 1 a and the pressure bearing surface 6 b matched with the pressure bearing protrusion 5 of the child lock control arm 3 .

The vehicle door lock provided by the utility model establishes a link between the opening arm of the outer handle and the control arm of the child lock by setting a linkage rod, so that when the door is opened by opening the handle outside the vehicle, the control arm of the child lock can be reset, thereby completing The unlocking action of the child safety lock. Therefore, the vehicle door lock provided by the utility model can avoid the inconvenience caused by the unclosed child safety lock for passengers getting off the vehicle, and at the same time, the vehicle door lock also has the advantages of simple structure and easy operation.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the vehicle door lock provided by the utility model;

Fig. 2 is a three-dimensional structural schematic diagram of the vehicle door lock provided by the present invention in the locked state of the door lock, wherein the child safety lock is in the open state;

Fig. 3 is a three-dimensional structure schematic diagram of an intermediate state during the process of opening the door of the vehicle door lock provided by the utility model through the handle outside the vehicle;

Fig. 4 is a schematic diagram of the three-dimensional structure of the vehicle door lock provided by the utility model when the action of opening the door by opening the handle outside the vehicle is completed, wherein the child safety lock reset is in the closed state;

Fig. 5 is a schematic diagram of the three-dimensional structure of the vehicle door lock provided by the utility model when the action of opening the door by opening the handle outside the vehicle is completed, wherein the child safety lock is in the closed state, and the linkage lever returns to the initial state under the action of the return member Location.

Detailed ways

Below, in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figure 1, the vehicle door lock provided by the utility model includes an outer handle opening arm 1, an inner handle opening arm 2, a child lock control arm 3, an inner handle force transmission arm 4 and a mounting plate 7, and an inner handle opening arm 2 It is rotatably connected with the inner handle force transmission arm 4 on the mounting plate 7, the inner handle opening arm 2 includes a pressure bearing surface 2a, the inner handle force transmission arm 4 includes a chute 4a and a pressure bearing surface 4b, and the child lock control arm 3 includes a pressure bearing surface 2a. Protrusion 5, the outer handle opening arm 1 includes a pressure bearing plate 1a, the pressure bearing plate 1a of the outer handle opening arm 1 cooperates with the pressure bearing surface 4b of the inner handle force transmission arm 4, and the pressure bearing protrusion 5 of the child lock control arm 3 is assembled on The chute 4a of the force transmission arm 4 of the inner handle cooperates with the pressure bearing surface 2a of the opening arm 2 of the inner handle.

Wherein, the door lock also includes a linkage rod 6, which can be rotatably connected to the mounting plate 7 in various known ways, preferably, the linkage rod 6 is rotatably connected to the mounting plate 7 through a pin shaft 8, as Figure 1 shows. The linkage rod 6 can be in various shapes, as long as it can realize the function of moving the pressure-bearing protrusion 5 to slide down along the chute 4a of the inner handle force transmission arm 4, such as a strip shape, a stick shape, etc., and can be It can be straight, bent, or have a certain curved shape. Regardless of the shape and size of the linkage lever 6 , it should include a pressure bearing surface 6 a cooperating with the pressure bearing plate 1 a of the outer handle opening arm 1 and a pressure bearing surface 6 b cooperating with the pressure bearing protrusion 5 of the child lock control arm 3 .

Preferably, a return member is installed at the position where the linkage rod 6 is rotatably connected to the installation plate 7, and more preferably, the return member is installed between the linkage rod 6 and the pin shaft 8 for making The linkage rod 6 turns back to the initial position after being stressed around the bearing pin 8 through a certain angle. The return member can be various components capable of returning the linkage rod, such as coil springs, cylindrical springs, conical springs, torsion springs, etc. Preferably, the return member is a coil spring.

The pressure-bearing protrusion 5 on the child lock control arm 3 can be a protrusion of various shapes and sizes, such as a cylinder, an elliptical cylinder, a square, etc., as long as it can be matched with the chute 4a of the force transmission arm 4 of the inner handle and It only needs to be able to slide in the chute 4a. Preferably, the pressure-bearing protrusion 5 is a cylinder. In addition, the pressure-bearing protrusion 5 can be one, or two arranged side by side along the direction perpendicular to the length direction of the child lock control arm 3, or can be a cylinder with the same size up and down, or two different sizes up and down. Segment cylinder. The manner and position of the connection of the pressure-bearing protrusion 5 to the child lock control arm 3 are well known to those skilled in the art, and can be determined according to specific conditions.

Preferably, the pressure-bearing protrusion 5 is a cylinder with the same size up and down or two cylinders with different sizes up and down. When the pressure-bearing protrusion 5 is a cylinder with the same size up and down, as shown in Figure 1, the pressure-bearing surface 2a of the inner handle opening arm 2 and the pressure-bearing surface 6b of the linkage rod 6 are all matched with this cylinder respectively, from different The angle of the force acts on the pressure-bearing protrusion 5. And when the pressure-bearing protrusion 5 is two sections of cylinders with different sizes up and down, as shown in Figure 4, the pressure-bearing surface 2a of the inner handle opening arm 2 cooperates with one section of cylinder, and the pressure-bearing surface 6b of the linkage rod 6 cooperates with the other section. The cylinders are matched, and the two cylinders bear different forces respectively. Preferably, a section of cylinder close to the mounting plate 7 has a larger size. When the pressure-bearing protrusion 5 is two sections of cylinders with different sizes up and down, the two sections of cylinders can be connected by various connection methods known to those skilled in the art.

Next, the operation process of the vehicle door lock provided by the present invention will be described. First, when the door lock is locked and the child safety lock is turned on, as shown in Figure 2, the pressure bearing surface 6a of the linkage rod 6 cooperates with the pressure bearing plate 1a of the opening arm 1 of the outer handle, and the pressure bearing surface 6a of the linkage lever 6 The surface 6b cooperates with the pressure bearing protrusion 5 of the child lock control arm 3 . The pressure-bearing protrusion 5 of the child lock control arm 3 is located at the child lock opening position close to the upper part of the chute 4a of the inner handle force transmission arm 4. In this position, the pressure bearing surface 2a of the inner handle opening arm 2 is not in contact with the child lock control arm. 3 in contact with the pressure-bearing protrusion 5 . Therefore, in this state, the arm 2 cannot be opened by the inner handle, that is, the door cannot be opened by the handle in the car.

Subsequently, when opening the car door by opening the handle outside the car, as shown in Figure 3, the outer handle opening arm 1 rotates around the shaft, so that the pressure bearing plate 1a is lifted, because the pressure bearing surface 6a of the linkage rod 6 is in contact with the outer handle opening arm 1 The pressure bearing plate 1a cooperates, so it can drive the linkage rod 6 to rotate counterclockwise around the pin shaft 8 . Since the pressure-bearing surface 6b of the linkage lever 6 cooperates with the pressure-bearing protrusion 5 of the child lock control arm 3, when the pressure-bearing surface 6b is pressed down, the pressure-bearing protrusion 5 will be forced along the chute of the inner handle force transmission arm 4 4a moves downward.

When the action of opening the car door by opening the handle outside the car is completed, as shown in Figure 4, the pressure-bearing protrusion 5 of the child lock control arm 3 will reset under the action of the pressure-bearing surface 6b of the linkage rod 6, that is, the force will be transmitted along the inner handle The sliding slot 4a of the arm 4 moves down to the child lock off position. In this state, the position of the pressure-receiving protrusion 5 can ensure that the pressure-receiving surface 2 a of the opening arm 2 of the inner handle is in contact with the pressure-receiving protrusion 5 . Therefore, when the car door is opened by opening the handle in the car, that is, when the inner handle opening arm 2 rotates counterclockwise around the shaft, the pressure-bearing protrusion 5 will be pushed to move. Since the pressure-bearing protrusion 5 is assembled in the chute 4a of the inner handle force transmission arm 4, the inner handle force transmission arm 4 will be driven to rotate counterclockwise around the shaft. As a result, the pressure-bearing surface 4b of the inner handle force transmission arm 4 is lifted up, and the pressure-bearing plate 1a of the outer handle opening arm 1 that is matched with it is also lifted up, so the outer handle opening arm 1 rotates, so that the door lock is opened and the car door is opened. .

In addition, since a return member is installed between the linkage rod 6 and the pin shaft 8, after the action of opening the car door by opening the handle outside the vehicle is completed, the linkage rod 6 will turn back under the action of the resilience of the return member. To the initial position, as shown in FIG. 5 , that is, the pressure-bearing surface 6 b of the linkage rod 6 is separated from the pressure-bearing protrusion 5 of the child lock control arm 3 .

Claims (6)

1. A vehicle door lock comprises an outer handle opening arm (1), an inner handle opening arm (2), a child lock control arm (3), an inner handle force transmission arm (4) and a mounting plate (7), and the inner handle The opening arm (2) and the inner handle force transmission arm (4) are rotatably connected to the mounting plate (7), the inner handle opening arm (2) includes a pressure bearing surface (2a), and the inner handle force transmission arm (4) includes a chute (4a) and pressure-bearing surface (4b), the child lock control arm (3) includes a pressure-bearing protrusion (5), the outer handle opening arm (1) includes a pressure-bearing plate (1a), the bearing of the outer handle opening arm (1) The pressure plate (1a) cooperates with the pressure-bearing surface (4b) of the force transmission arm (4) of the inner handle, and the pressure-bearing protrusion (5) of the child lock control arm (3) fits into the chute of the force transmission arm (4) of the inner handle (4a) and cooperate with the pressure-bearing surface (2a) of the inner handle opening arm (2), it is characterized in that the door lock also includes a linkage lever (6) that is rotatably connected to the mounting plate (7), and the linkage lever (6) includes a pressure bearing surface (6a) that cooperates with the pressure bearing plate (1a) of the outer handle opening arm (1) and a pressure bearing surface (6b) that cooperates with the pressure bearing protrusion (5) of the child lock control arm (3) ). 2. The vehicle door lock according to claim 1, wherein the linkage lever (6) is rotatably connected to the mounting plate (7) through a pin shaft (8). 3. The vehicle door lock according to claim 1, wherein a return member is installed at a position where the linkage lever (6) is rotatably connected to the mounting plate (7). 4. The vehicle door lock according to claim 3, wherein the return member is a coil spring. 5. The vehicle door lock according to claim 1, wherein the pressure-bearing protrusion (5) is a cylinder. 6 . The vehicle door lock according to claim 5 , wherein the cylindrical body has the same size up and down or has two sections with different sizes up and down. 7 .

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