Laser radar lifting mechanism

Abstract

The utility model relates to the field of vehicle laser radars, in particular to a laser radar lifting mechanism which comprises an electric push rod, a first connecting rod, a second connecting rod and a guide plate. The second connecting rod is rotationally provided with a carrying frame used for carrying the laser radar, the second connecting rod is rotationally connected with the first connecting rod, and a guide groove is formed in the guide plate and used for limiting the carrying frame. The electric push rod pushes the first connecting rod to rotate, and the second connecting rod drives the laser radar to lift. Compared with a lead screw structure adopted in the prior art, the structure of the first connecting rod and the second connecting rod is smaller in occupied space and simple in structure.

Description

Technical Field

[0001] This utility model relates to the field of automotive lidar, specifically to a lidar lifting mechanism. Background Technology

[0002] Currently, lidar is implemented in two ways: external fixed type and hidden type. External fixed type lidar is mainly fixed on the bumper or roof, which affects the overall static shape, has poor lidar detection angle, poor aerodynamics, and is prone to falling leaves and dust during long-term parking, as well as collisions, scratches, and even theft. Hidden type lidar is mainly hidden inside the vehicle body and needs to be raised and lowered to reach the working position to work.

[0003] Existing lidar lifting structures typically employ a lead screw drive structure, which occupies a large space and has a complex structure. Utility Model Content

[0004] The technical solution adopted by this utility model to solve its technical problem is: to provide a laser radar lifting mechanism, comprising:

[0005] An electric actuator, located below the lidar, is tilted.

[0006] The first link is connected to the output end of the electric push rod;

[0007] The second link has a rotatable support for the lidar, and the second link is rotatably connected to the first link.

[0008] A guide plate is provided with a guide groove, which is used to limit the position of the carrier.

[0009] Furthermore, the carrier is provided with a connecting rod, which is rotatably disposed within the guide groove.

[0010] Furthermore, a rolling element is provided at one end of the connecting rod located in the guide groove.

[0011] Furthermore, the rolling element is a ball or a roller.

[0012] Furthermore, a rotating shaft is provided at the rotatable connection between the first connecting rod and the second connecting rod, and the rotating shaft is connected to the output end of the electric push rod.

[0013] Furthermore, the guide groove is arc-shaped.

[0014] The beneficial effects of this utility model are as follows: It provides a lidar lifting mechanism, including an electric push rod, a first connecting rod, a second connecting rod, and a guide plate. The electric push rod is located below the lidar and is inclined. The first connecting rod is connected to the output end of the electric push rod. A carrier for supporting the lidar is rotatably mounted on the second connecting rod, and the second connecting rod is rotatably connected to the first connecting rod. The guide plate has a guide groove for limiting the movement of the carrier. The electric push rod pushes the first connecting rod to rotate, and the second connecting rod drives the lidar to lift and lower. Compared with the lead screw structure used in the prior art, the first and second connecting rod structure used in this utility model occupies less space and has a simpler structure. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] In the picture: Figure 1 An application example diagram of a lidar lifting mechanism provided by this utility model;

[0017] Figure 2 for Figure 1 The diagram shows the three-dimensional structure of the lidar lifting mechanism.

[0018] Figure 3 for Figure 1 The diagram shown illustrates the lidar lifting mechanism in its initial state.

[0019] Figure 4 for Figure 1 The diagram shows the lidar lifting mechanism after it has been raised.

[0020] Explanation of reference numerals in the attached drawings: 10, electric actuator; 20, first connecting rod; 21, rotating shaft; 30, second connecting rod; 31, carrier; 311, connecting rod; 312, rolling element; 40, guide plate; 41, guide groove; 50, carrier plate; 200, lidar. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Please refer to Figure 1-4This utility model provides a lidar lifting mechanism, including an electric push rod 10, a first connecting rod 20, a second connecting rod 30, and a guide plate 40, as well as a carrier plate 50 for supporting the electric push rod 10 and the guide plate 40.

[0023] The electric actuator 10 is located below the lidar 200 and is tilted.

[0024] The first link 20 is connected to the output end of the electric push rod 10. A carrier 31 for supporting the lidar 200 is rotatably mounted on the second link 30, and the second link 30 is rotatably connected to the first link 20. Furthermore, a rotating shaft 21 is provided at the rotatable connection between the first link 20 and the second link 30, and the rotating shaft 21 is fixedly connected to the output end of the electric push rod 10.

[0025] The electric push rod 10 translates the rotating shaft 21 at the rotational connection between the first link 20 and the second link 30, causing the rotation centers of the first link 20 and the second link 30 to move, thereby driving the first link 20 and the second link 30 to rotate. The second link 30 then drives the lidar 200 to rise and fall. Compared to the lead screw structure used in the prior art, the structure of the first link 20 and the second link 30 used in this invention occupies less space and has a simpler structure.

[0026] The guide plate 40 is provided with a guide groove 41, which is used to limit the movement of the carrier 31, so that the carrier 31 moves along the trajectory corresponding to the guide groove 41. Further, the guide groove 41 is arc-shaped and is a strip-shaped hole. The carrier 31 is provided with a connecting rod 311, which is rolled within the guide groove 41. A rolling element 312 is provided at one end of the connecting rod 311 located in the guide groove 41. Further, the guide plates 40 are arranged in pairs about the central axis of the carrier 31, and two corresponding connecting rods 311 are provided, supporting the carrier 31. Optionally, the rolling element 312 can be a ball bearing or a roller. Specifically, in this embodiment, the rolling element 312 is a roller.

[0027] Please refer to Figure 3 and Figure 4 From the initial state to the raised position, the output end of the electric push rod 10 pulls the rotating shaft 21 to move towards the lower left corner of the diagram. The first connecting rod 20 rotates counterclockwise, and the second connecting rod 30 rotates clockwise, causing the carrier 31 to move upward, thereby causing the lidar 200 to move upward. Conversely, when the lidar 200 needs to be lowered, the output end of the electric push rod 10 pulls the rotating shaft 21 to move towards the upper right corner of the diagram. The first connecting rod 20 rotates clockwise, and the second connecting rod 30 rotates counterclockwise, causing the carrier 31 to move downward, thereby causing the lidar 200 to move downward.

Claims

1. A lidar lifting mechanism, characterized in that, include: An electric actuator, located below the lidar, is tilted. The first link is connected to the output end of the electric push rod; The second link has a rotatable support for the lidar, and the second link is rotatably connected to the first link. A guide plate is provided with a guide groove, which is used to limit the position of the carrier.

2. The lidar lifting mechanism according to claim 1, characterized in that: The carrier is provided with a connecting rod, which is rotatably disposed within the guide groove.

3. The lidar lifting mechanism according to claim 2, characterized in that: The connecting rod is provided with a rolling element at one end of the guide groove.

4. The lidar lifting mechanism according to claim 3, characterized in that: The rolling element is a ball or a roller.

5. The lidar lifting mechanism according to claim 1, characterized in that: A rotating shaft is provided at the rotatable connection between the first connecting rod and the second connecting rod, and the rotating shaft is connected to the output end of the electric push rod.

6. The lidar lifting mechanism according to claim 1, characterized in that: The guide groove is arc-shaped.

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