Safety protection device for automatic driving

Abstract

The utility model belongs to the technical field of safety protection devices, and particularly relates to a safety protection device for automatic driving, which comprises a double-head laser radar, a side strip is welded at the bottom of each of two sides of the double-head laser radar, and a guide column is movably connected in through holes in two sides of each side strip in a penetrating manner. The bottoms of the guide columns are fixedly mounted on the surface of the mounting plate; the bottom of the double-end laser radar is installed on the arch piece, the arc piece is installed at the center end of the installation plate, the screw cap is installed on the portion, at the upper end of the surface of the side strip, of the screw rod in a threaded mode, and the maximum diameter of the screw cap is larger than the diameter of the through hole in the side strip. In this way, the reciprocating vibration phenomenon caused by the first spring and the second spring can be reduced. Therefore, during use, the side strip has an excellent vibration reduction function through the structure, so that the damage to electronic components in the double-head laser radar caused by excessive vibration is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of safety protection device, specifically relates to the safety protection device for automatic driving. BACKGROUND

[0002] In modern automobile technology, with the rapid development of automatic driving technology, double-head laser radar, as one of the core sensors of automatic driving system, plays a vital role. Double-head laser radar realizes high-precision three-dimensional scanning and modeling of the surrounding environment by emitting laser beams and receiving reflected signals, provides real-time road condition information and obstacle detection for vehicles, and is a key component to ensure the safety of automatic driving.

[0003] However, in actual application, vibration is inevitably generated during vehicle driving, especially under complex and variable road conditions such as bumpy road surface, bridge joint, highway joint, etc. If these vibrations are not effectively treated, they will directly affect the scanning accuracy and stability of double-head laser radar. Long-term vibration may also cause the internal precise electronic components of laser radar to loosen and damage, thereby affecting its service life and performance reliability, and increasing the failure risk of automatic driving system. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a safety protection device for automatic driving, aiming at solving the problem that vibration is inevitably generated during vehicle driving, especially under complex and variable road conditions such as bumpy road surface, bridge joint, highway joint, etc. If these vibrations are not effectively treated, they will directly affect the scanning accuracy and stability of double-head laser radar. Long-term vibration may also cause the internal precise electronic components of laser radar to loosen and damage, thereby affecting its service life and performance reliability, and increasing the failure risk of automatic driving system.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a safety protection device for automatic driving, comprising a double-head laser radar, one side of the double-head laser radar is welded with a side strip, a guide column is movably inserted into the through hole on the two sides of the side strip, the bottom of the guide column is fixedly installed on the surface of the mounting plate;

[0006] An arch piece is installed at the center of the mounting plate, the outer wall of the center part of the arch piece abuts against the bottom of the double-head laser radar, a screw rod is movably inserted into the through hole on the center line end of the side strip, the bottom of the screw rod is fixedly installed on the surface of the mounting plate, a nut is threadedly installed on the screw rod on the surface of the side strip, and the maximum diameter of the nut is greater than the diameter of the through hole on the side strip.

[0007] In order to make the nut move down along the screw rod, the two sides of the side strip can be further stabilized and moved down by means of the pressing plate, as the safety protection device for automatic driving, preferably, two protrusions are symmetrically and fixedly installed on the surface of the side strip, and the protrusions and the through holes on the side strip are located on the transverse center line of the side strip.

[0008] A pressing plate is arranged between the two protrusions, and a recess is formed at each end of the pressing plate, and each recess is connected with a pressing plate, and three round holes are formed in the pressing plate.

[0009] In order to effectively install the guide column and the screw rod between the side strip and the mounting plate, as the safety protection device for automatic driving, preferably, the guide column and the screw rod respectively penetrate the corresponding round holes in the pressing plate, and the bottom of the nut is pressed on the surface of the central end round hole of the pressing plate.

[0010] In order to effectively press the end of the side strip downward by the first spring, so that the side strip is kept stable, as the safety protection device for automatic driving, preferably, a limiting piece is fixedly installed on the top of the guide column, and a first spring is sleeved on the outer wall of the guide column between the bottom of the limiting piece and the surface of the pressing plate.

[0011] A second spring is sleeved on the outer wall of the screw rod between the bottom of the side strip and the surface of the mounting plate.

[0012] In order to reduce the reciprocating elastic force of the first spring and the second spring when they are reset, as the safety protection device for automatic driving, preferably, the arch piece is made of rubber material, and the side surface of the arch piece is a "C" shaped structure.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] When in use, the mounting plate is installed on the bumper at the front end of the automobile, and when the vehicle is running and vibrating, the double-head laser radar will vibrate up and down due to the vibration. When the double-head laser radar vibrates up and down, the first spring and the second spring will be pressed, and at this time, the vibration force of the whole will be weakened under the elastic action of the first spring and the second spring.

[0015] In addition, the double-head laser radar is installed at the bottom of the arch piece, which can absorb the reciprocating vibration effect of the first spring and the second spring, so as to reduce the reciprocating vibration phenomenon caused by the first spring and the second spring. Thus, when in use, the side strip can have excellent damping function through the above structure, so as to prevent the damage of the electronic elements in the double-head laser radar caused by excessive vibration. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0017] Figure 1 The right view structural schematic diagram provided for the embodiment of the present application.

[0018] Figure 2 The left view structural schematic diagram provided for the embodiment of the present application.

[0019] Figure 3 The bump mounting structural schematic diagram provided for the embodiment of the present application.

[0020] Figure 4 The tablet pressing structural schematic diagram provided for the embodiment of the present application.

[0021] In the drawings: 1, double-head laser radar; 2, side strip; 21, bump; 22, tablet; 220, notch; 3, guide column; 31, first spring; 32, limiting sheet; 4, mounting plate; 5, arch sheet; 6, screw rod; 61, second spring; 7, nut. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-4 The present application provides the following technical solutions: a safety protection device for automatic driving, comprising a double-head laser radar 1, one side strip 2 is welded to the bottom of each side of the double-head laser radar 1, one guide column 3 is movably inserted into the through hole on each side of the side strip 2, and the bottom of the guide column 3 is fixedly installed on the surface of a mounting plate 4;

[0024] When in use, the side strip 2 is installed on the mounting plate 4 through the guide column 3 and the screw rod 6, then the mounting plate 4 is connected to the front anti-collision beam of the automobile by means of bonding or bolt connection. Thus, the double-head laser radar 1 can be installed on the automobile, and then the double-head laser radar 1 is connected to the AEB controller.

[0025] The double-head laser radar 1 obtains the distance, speed and angle information of the target object by emitting and receiving electromagnetic waves when the vehicle is driving; then transmits to the AEB controller, the AEB controller processes the sensor data, combines the current speed, acceleration and other information of the vehicle, calculates the predicted collision time and safe braking distance, and according to the calculation result, the AEB controller issues instructions to the actuator. The actuator is usually an electronic stability system, which releases the pressure in the pump to the brake pipeline to push the friction plate to complete the braking action to avoid or reduce the collision, thereby making the automatic driving of the automobile more safe.

[0026] The center end of the mounting plate 4 is provided with an arch piece 5, and the arch piece 5 is made of rubber material. The side surface of the arch piece 5 is in a "C" shape structure.

[0027] The outer wall of the center part of the arch piece 5 abuts against the bottom of the double-head laser radar 1. A screw rod 6 is movably inserted into the through hole in the middle line end of the side strip 2. The bottom of the screw rod 6 is fixedly installed on the surface of the mounting plate 4. A nut 7 is threadedly installed on the screw rod 6 at the upper end of the surface of the side strip 2. The maximum diameter of the nut 7 is greater than the diameter of the through hole in the side strip 2.

[0028] Preferably, two protrusions 21 are symmetrically fixedly installed on the surface of the side strip 2. The protrusions 21 and the through holes in the side strip 2 are located at the transverse middle line position of the side strip 2.

[0029] A pressing piece 22 is arranged between the two protrusions 21. Two notches 220 are respectively formed at the two ends of the pressing piece 22. Each notch 220 is clamped with a pressing piece 22. Three round holes are formed in the pressing piece 22.

[0030] In specific use, when the nut 7 moves downward on the screw rod 6, the nut 7 will extrude the pressing piece 22. At the same time, the pressing piece 22 can prevent the nut 7 from rotating by the butt joint between the notches 220 on the two sides and the corresponding protrusions 21, so as to stably press the side strip 2 to move downward.

[0031] Preferably, the guide column 3 and the screw rod 6 respectively penetrate the corresponding round holes in the pressing piece 22. The bottom of the nut 7 is extruded on the surface of the center end round hole of the pressing piece 22.

[0032] Preferably, a limiting piece 32 is fixedly installed at the top of the guide column 3. A first spring 31 is sleeved on the outer wall of the guide column 3 between the bottom of the limiting piece 32 and the surface of the pressing piece 22.

[0033] A second spring 61 is sleeved on the outer wall of the screw rod 6 between the bottom of the side strip 2 and the surface of the mounting plate 4.

[0034] In specific use, when the side strip 2 moves downward, the second spring 61 is pressed, so that the side strip 2 can move downward along the track of the guide column 3 and the screw rod 6, thereby driving the double-head laser radar 1 to move downward, and the mounting height of the double-head laser radar 1 can be adjusted through the structure in use.

[0035] In use, the mounting plate 4 is first stably mounted on the bumper at the front end of the automobile. When vibration inevitably occurs during the driving of the vehicle, the double-head laser radar 1 mounted thereon will vibrate up and down. The vibration process will press the first spring 31 and the second spring 61. Due to the elastic properties of the first spring 31 and the second spring 61, they can effectively absorb and weaken most of the vibration force brought by the driving of the vehicle, thereby providing a relatively stable operating environment for the double-head laser radar 1.

[0036] Moreover, the bottom of the double-head laser radar 1 is also provided with the arch piece 5, which further enhances the damping effect. The arch piece 5 can absorb and disperse the reciprocating energy generated by the first spring 31 and the second spring 61 during the vibration process, greatly reducing the reciprocating vibration phenomenon of the spring system itself, thereby further improving the overall damping performance.

[0037] Through the above structure, the two sides of the side strip 2 can realize the damping function. This not only ensures that the double-head laser radar 1 can maintain high stability and precision in complex and changeable driving environments, but more importantly, it effectively prevents potential damage to the internal precision electronic elements of the double-head laser radar 1 caused by excessive vibration, thereby prolonging the service life of the equipment.

[0038] Finally, it should be pointed out that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A safety protection device for autonomous driving, comprising a dual-head lidar (1), wherein a side strip (2) is welded to the bottom of each of the two sides of the dual-head lidar (1), characterized in that, A guide post (3) is movably connected through the through holes on both sides of the side strip (2), and the bottom of the guide post (3) is fixedly installed on the surface of the mounting plate (4). An arch plate (5) is installed at the center end of the mounting plate (4). The outer wall of the center part of the arch plate (5) abuts against the bottom of the dual-head laser radar (1). A screw (6) is movably connected in the through hole at the center end of the side strip (2). The bottom of the screw (6) is fixedly installed on the surface of the mounting plate (4). A nut (7) is threaded on the screw (6) at the upper end of the surface of the side strip (2). The maximum diameter of the nut (7) is greater than the diameter of the through hole on the side strip (2).

2. The safety protection device for autonomous driving according to claim 1, characterized in that: Two protrusions (21) are symmetrically fixed on the surface of the side strip (2), and the through holes on the protrusions (21) and the side strip (2) are located at the horizontal midline of the side strip (2).

3. The safety protection device for autonomous driving according to claim 2, characterized in that: A pressure plate (22) is provided between the two protrusions (21). A notch (220) is opened at both ends of the pressure plate (22). Each notch (220) is engaged with a pressure plate (22). The pressure plate (22) has three round holes.

4. The safety protection device for autonomous driving according to claim 1, characterized in that: The guide post (3) and the screw (6) pass through the corresponding round holes on the pressure plate (22), and the bottom of the nut (7) is pressed against the surface of the round hole at the center end of the pressure plate (22).

5. The safety protection device for autonomous driving according to claim 1, characterized in that: A limiting piece (32) is fixedly installed on the top of the guide post (3), and a first spring (31) is sleeved on the outer wall of the guide post (3) between the bottom of the limiting piece (32) and the surface of the pressure plate (22).

6. The safety protection device for autonomous driving according to claim 1, characterized in that: A second spring (61) is sleeved on the outer wall of the screw (6) between the bottom of the side strip (2) and the surface of the mounting plate (4).

7. The safety protection device for autonomous driving according to claim 3, characterized in that: The arch piece (5) is made of rubber, and the side of the arch piece (5) has a "C" shaped structure.

Images