A laser radar protection device

Abstract

The application discloses a laser radar protection device and belongs to the technical field of laser radar protection.The laser radar protection device comprises a protection box, a box door, a support plate and a lifting drive.The box door is movably connected to one side of an opening of the protection box.The support plate is slidably arranged in the protection box.The radar body is fixedly arranged at the top end of a connecting plate, and the connecting plate is connected with the support plate through a buffer connecting piece.The lifting drive is arranged in the protection box and connected with the support plate to adjust the height of the radar body.Through the arrangement of the protection box and the support plate, the radar body and the internal equipment can be protected during use.When an external force acts on the radar, the spring A and the buffer connecting pieces can quickly react to buffer and protect the radar, so that the radar will not produce strong vibration, and the damage of the radar is avoided.

Description

Technical Field

[0001] This invention relates to the field of lidar protection technology, and more specifically, to a lidar protection device. Background Technology

[0002] With the continuous advancement of lidar technology, its applications are becoming increasingly widespread. For example, in the field of topographic mapping, lidar can reveal landforms by showing subtle changes in ground elevation; in the field of atmospheric environmental monitoring, lidar can detect the distribution of aerosols and cloud particles, atmospheric composition, and the vertical profile of wind fields, enabling effective monitoring of major pollution sources. Of course, the application of lidar in various fields is inseparable from its precise measurement and tracking capabilities, therefore, the protection of lidar equipment is particularly important.

[0003] The prior art disclosed in CN211086589U mainly relates to a protective device for outdoor lidar. The device assembly mainly includes a lidar protective cover and a rain splash protection unit. However, it mainly fixes the lidar protective cover on the lidar, which can only protect the upper part of the lidar. It has the defect of incomplete protection. When the lidar is subjected to external force, it may still cause damage to the equipment.

[0004] In view of this, we propose a lidar protection device. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide a laser radar protection device to solve the problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] A lidar protection device includes a protective housing and further comprises:

[0009] The box door is movably connected to one side of the opening of the protective box;

[0010] A support plate, which is slidably disposed inside the protective box;

[0011] The radar body is fixedly mounted on the top of the connecting plate, and the connecting plate is connected to the support plate through a buffer connector.

[0012] A lifting drive is provided inside the protective box and is connected to the support plate to adjust the height of the radar body.

[0013] As an optional solution to the technical solution of this application, the buffer connector includes a tension cylinder, and a connecting block is fixedly provided at one end of the tension cylinder near the support plate;

[0014] The support plate is provided with a connecting groove corresponding to the connecting block;

[0015] The connecting block extends into the connecting groove and is rotatably connected to the connecting groove via a pin.

[0016] An inner buffer rod is provided at one end of the stretching cylinder away from the support plate. One end of the inner buffer rod is rotatably connected to a hinge seat through a connecting block. The hinge seat is fixedly connected to the outer wall of the connecting plate.

[0017] As an optional embodiment of the technical solution of this application, four stretching cylinders are provided, each stretching cylinder having a cavity inside. One end of the inner buffer rod extends through the outer wall of the stretching cylinder into the cavity and is fixedly connected to a limiting plate.

[0018] A spring B is sleeved on the outer wall of the portion of the inner buffer rod that extends into the tension cylinder. One end of the spring B is pressed against the outer wall of the limiting disc, and the other end is pressed against the inner wall of the tension cylinder.

[0019] As an optional solution to the technical solution of this application, the buffer connector further includes a support column fixedly disposed on the bottom surface of the connecting plate, the other end of the support column being slidably inserted into the support plate, and a spring A being sleeved on the outer wall of the support column.

[0020] As an optional solution to the technical solution of this application, the lifting drive includes a drive block rotatably disposed inside the protective box, and the drive block is fixedly connected to the output shaft of the drive motor outside the protective box;

[0021] The inner wall of the protective box is provided with multiple sets of connecting rods. Each set of connecting rods is connected in a diamond structure, and adjacent connecting rods are rotatably connected by a pin. The pin of one set of connecting rods is rotatably connected to the inner wall of the protective box, and the pin of the other set of connecting rods is rotatably connected to the inner wall of the groove on the bottom surface of the support plate.

[0022] One of the connecting rods has an abutment post on one side of the pin shaft, and the abutment post abuts and fits against the outer wall of the drive block.

[0023] As an optional solution to the technical solution of this application, the driving block is configured in a whistle-shaped structure.

[0024] As an optional solution to the technical solution of this application, a stabilizing block is provided on the outer side of the pin of one set of connecting rods, and the stabilizing block is slidably connected to the groove opened in the inner wall of the protective box.

[0025] As an optional solution to the technical solution of this application, the inner wall of the protective box is provided with a driving cavity, a driving column is rotatably arranged inside the driving cavity, a driving groove is provided on the outer wall of the driving column, a driving wheel is slidably arranged inside the driving groove, and the driving wheel is fixed to the outer wall of the support plate.

[0026] A worm gear is coaxially fixed at one end of the drive column, and a worm wheel is meshed with the outer wall of the worm gear. The worm wheel is fixedly connected to the outer end of the rotating shaft of the box door.

[0027] As an optional solution to the technical solution of this application, the driving columns are arranged in two symmetrical groups, and the driving groove is arranged in a spiral structure.

[0028] 3. Beneficial effects

[0029] Compared with existing technologies, the advantages of the technical solution in this application are:

[0030] (1) The technical solution of this application can protect the radar body and its internal equipment by setting up a protective box and support plate. When subjected to external forces from the front, back, left and right, it will react quickly through multiple buffer connectors to buffer and protect the radar, so that it will not generate strong vibrations and avoid damage to the radar.

[0031] (2) The technical solution of this application allows the connecting rod to retract when the drive block is set, thereby retracting the radar body and the observation window into the protective box for protection. When in use, the angle of rotation of the drive block can control how much the radar body extends, so that it extends as little as possible while satisfying the observation requirements, thereby reducing the probability of being subjected to different external forces.

[0032] (3) The technical solution of this application sets a drive column inside the inner wall of the protective box, so that the support plate will automatically open or close during the lifting process. This prevents personnel from opening the box door alone, but automatically extends and opens the box door when needed, reducing the factors of damage caused by unauthorized personnel. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the lidar protection device disclosed in a preferred embodiment of this application;

[0034] Figure 2 This is a cross-sectional view of the overall structure of the lidar protection device disclosed in a preferred embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the buffer connector structure of the lidar protection device disclosed in a preferred embodiment of this application;

[0036] Figure 4 for Figure 3 Enlarged view of the structure at point A in the image;

[0037] Figure 5 This is a schematic diagram of the inner wall structure of the protective box of the lidar protection device disclosed in a preferred embodiment of this application;

[0038] The following are the labels in the diagram: 1. Radar body; 2. Observation window; 3. Protective box; 4. Box door; 5. Support plate; 6. Connecting plate; 7. Buffer connector; 8. Support column; 9. Spring A; 10. Tension cylinder; 11. Inner buffer rod; 12. Hinge seat; 13. Spring B; 14. Limiting plate; 15. Drive block; 16. Drive motor; 17. Connecting rod; 18. Abutment column; 19. Stabilizing block; 20. Slide groove; 21. Drive cavity; 22. Drive column; 23. Drive groove; 24. Drive wheel; 25. Worm gear; 26. Worm wheel. Detailed Implementation

[0039] Please see Figure 1-5 This invention provides a technical solution:

[0040] A laser radar protection device includes a protective box 3; a door 4 is movably connected to the opening side of the protective box 3; and a support plate 5 is slidably arranged inside the protective box 3.

[0041] The lidar protection device also includes a connecting plate 6, which is connected to the support plate 5 via a buffer connector 7, and the radar body 1 is fixedly mounted on the upper side of the connecting plate 6. The radar body is provided with an observation window 2.

[0042] The protective box is also equipped with a lifting drive, which is connected to the support plate to adjust the height of the radar body on the connecting rod.

[0043] Specifically, the buffer connector 7 includes a tension cylinder 10, with a connecting block fixed to one end of the tension cylinder 10 near the support plate; a connecting groove is provided on the support plate 5 corresponding to the connecting block. The connecting block extends into the connecting groove and is rotatably connected to the inner wall of the corresponding connecting groove via a pin.

[0044] An inner buffer rod 11 is provided on the side of the tension cylinder 10 away from the support plate. One end of the inner buffer rod 11 is rotatably connected to a hinge seat 12 through a connecting block. The hinge seat 12 is fixedly connected to the outer wall of the connecting plate 6.

[0045] In this technical solution, the protective box 3 and the support plate 5 can protect the radar body 1 and its internal equipment during use. When subjected to external force, multiple buffer connectors 7 will react quickly to buffer and protect the radar, so that it will not generate strong vibration and avoid damage to the radar.

[0046] Furthermore, four tension cylinders 10 are provided, and each tension cylinder has a cavity. One end of the inner buffer rod 11 extends through the outer wall of the corresponding tension cylinder 10 into the inner cavity and is fixedly mounted with a limiting plate 14. Among them, the outer wall of the part of the inner buffer rod 11 that extends into the tension cylinder 10 is sleeved with a spring B13. One end of the spring B13 is pressed against the outer wall of the limiting plate 14, and the other end is pressed against the inner wall of the tension cylinder 10.

[0047] In this technical solution, the four sides of the connecting plate 6 are stretched to form a support, so that the bottom surface of the connecting plate 6 is in a non-contact state, thereby making the radar body 1 in a non-contact state and improving the protection effect.

[0048] Furthermore, the buffer connector 7 also includes a support column 8 fixedly installed on the bottom surface of the connecting plate 6, with the other end of the support column slidably inserted into the support plate, and a spring A9 sleeved on the outer wall of the support column 8.

[0049] In this technical solution, while spring B is working, the setting of spring A9 buffers the vertical square force, further improving the protective effect.

[0050] Furthermore, the lifting drive includes a drive block 15 that is rotatably disposed inside the protective box 3, and the drive block 15 is fixedly connected to the output shaft of the drive motor 16 on the outside of the protective box 3.

[0051] The inner wall of the protective box 3 is provided with multiple sets of connecting rods 17. Each set of connecting rods is connected in a diamond structure, and adjacent connecting rods are rotatably connected by a pin. The pin of one set of connecting rods 17 is rotatably connected to the inner wall of the protective box 3, and the pin of the other set of connecting rods 17 is rotatably connected to the inner wall of the groove on the bottom surface of the support plate 5.

[0052] One of the connecting rods 17 has an abutment post 18 on one side of the pin shaft, and the abutment post 18 abuts against and fits against the outer wall of the drive block 15.

[0053] In this technical solution, the connecting rod 17 can be retracted when the drive block 15 is rotated, thereby retracting the radar body 1 into the protective box 3 for protection. In use, the extent to which the radar body extends can be controlled by the rotation angle of the drive block 15, so that as little part as possible extends while still meeting observation requirements, thus reducing the probability of being subjected to different external forces.

[0054] It is worth noting that the drive block 15 is configured in a whistle-shaped structure.

[0055] This technical solution allows the connecting rod 17 to be opened and closed at different heights, thus meeting different observation needs.

[0056] It is worth noting that a stabilizing block 19 is provided on the outside of the pin of one of the connecting rods 17, and the stabilizing block 19 is slidably connected to the groove 20 opened on the inner wall of the protective box 3.

[0057] In addition, the inner wall of the protective box 3 is provided with a drive cavity 21, a drive column 22 is rotatably arranged inside the drive cavity 21, a drive groove 23 is provided on the outer wall of the drive column 22, a drive wheel 24 is slidably arranged inside the drive groove 23, and the drive wheel 24 is fixed to the outer wall of the support plate 5.

[0058] A worm gear 25 is coaxially fixed at one end of the drive column 22, and a worm wheel 26 is meshed with the outer wall of the worm gear 25. The worm wheel 26 is fixedly connected to the outer end of the rotating shaft of the door 4.

[0059] In this technical solution, by setting a drive column 22 inside the inner wall of the protective box 3, the box door 4 will automatically open or close during the lifting and lowering process of the support plate 5. This prevents personnel from opening the box door alone, but instead allows the box door 4 to automatically extend and open when needed, reducing the risk of damage caused by unauthorized personnel.

[0060] In addition, there are two sets of drive columns 22 arranged symmetrically, and the drive groove 23 is arranged in a spiral structure.

[0061] In this technical solution, the door 4 is subjected to uniform force, and it opens and closes through the simultaneous action of both sides.

[0062] When the lidar protection device is needed, firstly, the output shaft of the drive motor 16 is driven to rotate by the controller, which in turn drives the drive block 15 to rotate. At this time, the abutment column 18 will rotate along the contour of the drive block 15. When it reaches the concave part of the drive block 15, the distance between the connecting rods 17 is the smallest. At this time, the support plate 5 will be driven down into the protective box 3.

[0063] At the same time, as the support plate 5 descends, the drive wheel 24 on the support plate 5 descends, and the drive wheel 24 is slidably set in the drive groove 23 opened on the drive column 22. At this time, the drive column 22 is driven to rotate, and the worm 25 on the drive column 22 rotates. The worm wheel 26 meshing on the worm 25 rotates, thereby driving the rotating shaft of the box door 4 to rotate. Thus, the box door 4 is closed when the radar body 1 is retracted for protection. When observation is needed, the reverse operation can be performed.

[0064] At this time, when subjected to external force, since the radar body 1 is fixed on the connecting plate 6, the connecting plate 6 is suspended on the bottom surface. At this time, the connecting plate 6 moves up and down to buffer the vertical force through the action of spring A9, thus offsetting the vertical force. At the same time, the setting of the buffer connecting piece 7 offsets the force in other directions through spring B13, and some of the force is distributed and offset by spring A9, thus improving the protection effect.

Claims

1. A lidar protection device, comprising a protective housing, characterized in that: Also includes: The box door is movably connected to one side of the opening of the protective box; A support plate, which is slidably disposed inside the protective box; The radar body is fixedly mounted on the top of the connecting plate, and the connecting plate is connected to the support plate through a buffer connector. A lifting drive is provided inside the protective box and is connected to the support plate to adjust the height of the radar body. The buffer connector includes a tension cylinder, and a connecting block is fixedly provided at one end of the tension cylinder near the support plate. The support plate is provided with a connecting groove corresponding to the connecting block; The connecting block extends into the connecting groove and is rotatably connected to the connecting groove via a pin. An inner buffer rod is provided at one end of the stretching cylinder away from the support plate. One end of the inner buffer rod is rotatably connected to a hinge seat through a connecting block. The hinge seat is fixedly connected to the outer wall of the connecting plate. The stretching cylinder is provided with four cylinders. Each cylinder has a cavity. One end of the inner buffer rod extends through the outer wall of the stretching cylinder into the cavity and is fixedly connected to the limiting plate. A spring B is sleeved on the outer wall of the part of the inner buffer rod that extends into the stretching cylinder. One end of the spring B is pressed against the outer wall of the limiting plate, and the other end is pressed against the inner wall of the stretching cylinder. The buffer connector also includes a support column fixedly disposed on the bottom surface of the connecting plate, the other end of the support column being slidably inserted into the support plate, and a spring A being sleeved on the outer wall of the support column; The lifting drive includes a drive block that is rotatably disposed inside the protective box, and the drive block is fixedly connected to the output shaft of the drive motor outside the protective box; The inner wall of the protective box is provided with multiple sets of connecting rods. Each set of connecting rods is connected in a diamond structure, and adjacent connecting rods are rotatably connected by a pin. The pin of one set of connecting rods is rotatably connected to the inner wall of the protective box, and the pin of the other set of connecting rods is rotatably connected to the inner wall of the groove on the bottom surface of the support plate. One of the connecting rods has an abutment post on one side of the pin shaft, and the abutment post abuts and fits against the outer wall of the drive block; The inner wall of the protective box is provided with a drive cavity, a drive column is rotatably arranged inside the drive cavity, a drive groove is provided on the outer wall of the drive column, a drive wheel is slidably arranged inside the drive groove, and the drive wheel is fixed to the outer wall of the support plate. A worm gear is coaxially fixed at one end of the drive column, and a worm wheel is meshed with the outer wall of the worm gear. The worm wheel is fixedly connected to the outer end of the rotating shaft of the box door. When the lidar protection device is needed, firstly, the controller drives the drive motor to rotate the drive block, causing the contact post to rotate along the contour of the drive block. When the contact post reaches the recess of the drive block, the support plate descends into the protective box. At the same time, the drive wheel follows the support plate down and drives the drive post to rotate, thereby driving the rotating shaft of the box door to rotate. The box door closes when the lidar body is retracted. At this time, when subjected to external force, the connecting plate moves up and down to buffer the vertical force through the action of spring A, and the force in other directions is offset by spring B.

2. The lidar protection device according to claim 1, characterized in that: The drive block is configured in a whistle-shaped structure.

3. The lidar protection device according to claim 1, characterized in that: A stabilizing block is provided on the outer side of the pin of one of the connecting rods, and the stabilizing block is slidably connected to a groove opened in the inner wall of the protective box.

4. The lidar protection device according to claim 1, characterized in that: The drive columns are arranged in two symmetrical sets, and the drive grooves are arranged in a spiral structure.

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