CN203818968U - Vehicle wheel distance movement limiting and locking device - Google Patents

Abstract

The utility model relates to a moving limit and locking device for wheel base of an automobile, which includes a motor for moving the suspension, and a limit block A installed on the vehicle body and a limit block B installed on the movable suspension. Pressure sensors are respectively installed on the block A and the limit block B, the first lock groove is provided between the limit block A and the vehicle body, the second lock groove is provided between the limit block B and the suspension bracket, and the limit block A and the limit block The upper end of the bit block B is respectively provided with a locking device. The utility model realizes the position limitation and automatic locking of the suspension during the moving process, so that the suspension cannot be separated from the vehicle body, and its degree of freedom is limited, so as to ensure the safety of the vehicle after the wheelbase changes and reduce the possibility of accidents.

Description

A device for limiting and locking the wheelbase movement of automobiles

technical field

The utility model relates to a locking device, in particular to an automobile wheelbase movement limit locking device.

Background technique

With the development of the economy and the improvement of people's living standards, automobiles have become one of the important tools for people to travel. The current automobile research is devoted to the improvement of vehicle acceleration, stability and off-road performance. Traditional fixed-wheelbase vehicles are restricted by the ground adhesion coefficient when they start to accelerate. The power of the engine cannot be fully utilized, which affects the start. Acceleration performance at low speed. So there are some cars with variable wheelbase, and these cars with variable wheelbase need to limit the wheelbase during the change process, and after the limit, they need to be locked to limit the degree of freedom of the suspension.

Chinese Patent Announcement No. CN2625200Y, announced on July 14, 2004, is called a vehicle with adjustable wheelbase, including a vehicle body, a power system, a walking system, and an operating system; the walking system has a device for adjusting the distance between the front axle and the rear axle Wheelbase adjustment device, which includes: a trough frame that is also a part of the automobile frame, a set of support wheels that can roll back and forth in the trough frame; a set of support columns that are movably connected with the support shafts of the support wheels, and the support columns Installed on the rear axle of the car; the inner surface of the upper end of the support column is fixed with a nut seat that can translate the half shaft and the rear axle along the front and rear directions of the vehicle body through the support column. The nut seat is a threaded transmission pair composed of a transmission nut and a screw rod. The other end is flexibly connected and positioned with the girder. Its disadvantage is that there is no limit and locking device after the wheelbase is changed.

Utility model content

The purpose of the utility model is to provide an automobile wheelbase movement limiting and locking device in order to solve the defect that the existing wheelbase adjustable automobile is difficult to limit and lock when adjusting the wheelbase.

In order to achieve the above object, the utility model adopts the following technical solutions:

A wheelbase movement limit locking device for an automobile, including a motor for moving the suspension, and a limit block A installed on the vehicle body and a limit block B installed on the movable suspension, the limit block A and the Pressure sensors are respectively installed on the limit block B. There is a first lock groove between the limit block A and the vehicle body. A second lock groove is provided between the limit block B and the suspension bracket. The limit block A and the upper end of the limit block B There are locking devices respectively. In this technical solution, during the movement of the suspension, the limit block A and the limit block B touch, the pressure sensor transmits the signal to the motor, so that the suspension stops moving, and the motor transmits the signal to the on-board ECU, and then feeds back Give the locking device, the locking device triggers the locking, and fixes the suspension on the vehicle body, thereby realizing the limit and automatic locking of the suspension during the movement, so that the suspension cannot be separated from the vehicle body, and its degree of freedom is limited. Ensure the safety of the vehicle after the wheelbase changes and reduce the possibility of accidents.

Preferably, the pressure sensor is connected with the motor.

Preferably, the first lock groove is T-shaped, and the second lock groove is an inverted T-shaped matching with the first lock groove. In this technical solution, after the suspension moves to a limited position, the first lock slot and the second lock slot form an I-shape so as to match with the lock tongue of the locking device.

Preferably, the locking device includes a housing, a locking spring, an electromagnet and a deadbolt, and the locking device is connected to the vehicle-mounted ECU. In this technical solution, the normal state of the locking device is the locked state, the electromagnet is not energized, and the locking spring is stretched. When the locking device receives the movement signal fed back by the vehicle ECU, the electromagnet is energized to pull the deadbolt away. Lock groove; when the locking device receives the limit signal from the vehicle ECU, the electromagnet stops working, and the locking spring presses the deadbolt into the lock groove.

The beneficial effect of the utility model is that the utility model realizes the limit and automatic locking of the suspension during the moving process, so that the suspension cannot be separated from the vehicle body, and limits its degree of freedom, ensuring the safety of the vehicle after the wheelbase changes, reducing the possibility of an accident.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

In the figure, 1. Limiting block A; 2. Limiting block B; 3. Pressure sensor; 4. The first lock groove; 5. The second lock groove; 6. Locking device; 7. Locking spring; 8. Electromagnet; 9, deadbolt.

Detailed ways

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further explained:

Referring to Fig. 1, an automobile wheelbase moving limit locking device includes a motor to move the suspension, and also includes a limit block A 1 installed on the vehicle body and a limit block B 2 installed on the movable suspension , a pressure sensor 3 is respectively installed on the limit block A1 and the limit block B2, the first lock groove 4 is provided between the limit block A1 and the vehicle body, and the second lock is provided between the limit block B2 and the suspension bracket The groove 5, the upper ends of the limiting block A 1 and the limiting block B 2 are respectively provided with locking devices 6 . The pressure sensor 3 is connected with the motor. The first locking groove 4 is T-shaped, and the second locking groove 5 is an inverted T-shaped matching with the first locking groove 4 . The locking device 6 includes a locking spring 7, an electromagnet 8 and a deadbolt 9, and the locking device 6 is connected with the vehicle-mounted ECU.

The normal state of the locking device is the locked state, the electromagnet is not energized, and the locking spring stretches. When the locking device receives the movement signal fed back by the vehicle ECU, the electromagnet is energized to pull the lock tongue away from the lock groove; After the device receives the limit signal from the on-board ECU, the electromagnet stops working, and the locking spring presses the dead bolt into the lock groove. During the movement of the suspension, when the limit block A touches the limit block B, the pressure sensor transmits the signal to the motor, so that the suspension stops moving, the motor transmits the signal to the vehicle ECU, and then feeds back to the locking device, the lock The locking device triggers the locking, and fixes the suspension on the vehicle body, thereby realizing the limit and automatic locking of the suspension during the moving process, so that the suspension cannot be separated from the vehicle body, and its degree of freedom is limited to ensure that the vehicle after the wheelbase changes safety and reduce the possibility of accidents.

Claims (4)

1. an automobile wheel track moves limiting lock locking apparatus, comprise the motor that suspension is moved, it is characterized in that, also comprise the limiting stopper first (1) being arranged on vehicle body and be arranged on the limiting stopper second (2) on removable suspension, limiting stopper first (1) and the upper setting pressure sensor (3) respectively of limiting stopper second (2), between limiting stopper first (1) and vehicle body, be provided with the first locked groove (4), limiting stopper second (2) is provided with the second locked groove (5) with suspension strut, and limiting stopper first (1) is respectively equipped with Locking Device (6) with limiting stopper second (2) upper end.

2. a kind of automobile wheel track according to claim 1 moves limiting lock locking apparatus, it is characterized in that, pressure sensor (3) is connected with motor.

3. a kind of automobile wheel track according to claim 1 moves limiting lock locking apparatus, it is characterized in that, the first locked groove (4) is T font, and the second locked groove (5) is the inverted T-shape matching with the first locked groove (4).

4. according to a kind of automobile wheel track described in claim 1 or 2 or 3, move limiting lock locking apparatus, it is characterized in that, Locking Device (6) comprises, locking spring (7), electromagnet (8) and dead bolt (9), and Locking Device (6) is connected with vehicle-mounted ECU.