Waterproof and anti-leakage device for laser radar lens

Abstract

The utility model discloses a waterproof and anti-leakage device for a laser radar lens, which particularly relates to the technical field of laser radars and comprises a laser radar body, a lens is mounted on one side of the laser radar body, and a sealing mechanism is arranged on the outer side of the lens. The sealing mechanism comprises a gasket, the outer side of the gasket is fixedly connected with the inner side of the laser radar body, the inner side of the gasket is clamped with the outer side of the lens, a plurality of sealing grooves are formed in the inner wall of the gasket, two protruding strips are fixedly connected in the gasket, a plurality of first check blocks are fixedly connected to the inner side of the laser radar body, and a sealing ring is fixedly connected to the outer side of the laser radar body. A limiting frame is installed on one side of the laser radar body. Multi-point contact type sealing of the edge of the lens is achieved through the design of the multiple sealing grooves and the protruding strips, the extrusion force of the gasket is enhanced in combination with the check block structure, and the waterproof and anti-seepage performance is improved; meanwhile, connecting plate pre-positioning and connecting rod secondary fastening are adopted, it is guaranteed that assembling pressure is evenly distributed, and sealing reliability and assembling convenience are both considered.

Description

Technical Field

[0001] This utility model relates to the field of lidar technology, and more specifically, to a waterproof and leak-proof device for lidar lenses. Background Technology

[0002] LiDAR is a radar system that uses laser beams to detect the position, velocity, and other characteristics of a target. Its working principle is to send a detection signal to the target, then compare the received signal reflected back from the target with the transmitted signal, and after appropriate processing, obtain relevant information about the target, such as the target's distance, azimuth, altitude, velocity, attitude, and even shape.

[0003] Some existing radars with poor waterproof performance may have their components corroded by rainwater when used in external environments, leading to a reduction in the radar's lifespan and, in severe cases, damage to the radar, resulting in economic losses.

[0004] A search revealed a Chinese patent, CN217766831U, which discloses a waterproof device for lidar. This utility model, by setting up a motor, a rotating rod, a sealing cover, a water guide, a support rod, and a dustproof net, enables the motor to drive the rotating rod and the main body to rotate, thereby shaking off the rainwater on the main body and the sealing cover, thus achieving the function of waterproofing.

[0005] However, in actual use, the above-mentioned waterproof device is generally fixed between the lens and the lidar body using a single-layer sealing ring. Over a long period of operation, the sealing performance of the sealing ring will decrease, for example, due to aging. When the lens area of ​​the lidar comes into contact with rainwater, rainwater can easily enter the lidar through the sealing ring, causing damage to its internal parts. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a waterproof and leak-proof device for lidar lenses to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A waterproof and leak-proof device for a lidar lens includes a lidar body, a lens mounted on one side of the lidar body, and a sealing mechanism on the outer side of the lens. The sealing mechanism includes a gasket, the outer side of which is fixedly connected to the inner side of the lidar body, and the inner side of which engages with the outer side of the lens. Multiple sealing grooves are formed on the inner wall of the gasket. Two protruding strips are fixedly connected inside the gasket. Multiple blocks are fixedly connected to the inner side of the lidar body. A sealing ring is fixedly connected to the outer side of the lidar body. A limiting frame is mounted on one side of the lidar body, and multiple blocks are fixedly connected to the inner side of the limiting frame. Multiple slots are formed on the outer side of the lidar body. Multiple connecting plates are fixedly connected to one side of the limiting frame, and a locking block is fixedly connected to one side of each connecting plate. The bottom of the locking block engages with the inner side of the slot. An installation mechanism is provided on the outer side of the lidar body.

[0009] By adopting the above technical solution, multiple sealing grooves and convex strips on the inner side of the gasket are used to seal the edge of the lens in multiple layers, so that the lens and the lidar body can form a better waterproof and leak-proof capability.

[0010] As a further description of the above technical solution: the installation mechanism includes multiple connecting rods, one side of which is fixedly connected to one side of the limiting frame, and a groove is provided on one side of the connecting rod. Multiple positioning cylinders are fixedly connected to the outside of the laser radar body, and a base frame is fixedly connected to the bottom of the positioning cylinder. The inside of the positioning cylinder is inserted into the outside of the connecting rod, and a top frame is fixedly connected to the top of the positioning cylinder. A limiting rod is rotatably connected to the outside of the base frame, and the outside of the limiting rod is engaged with the inside of the groove. A thread is provided at the top of the limiting rod, and a nut is threaded onto the outside of the thread.

[0011] By adopting the above technical solution: using multiple connecting plates and locking blocks to quickly engage the slots, and multiple positioning cylinders to limit the insertion of the connecting rods, the connection between the limiting frame and the lidar body is kept stable, while reducing the vibration generated by assembling the lidar body and the limiting frame, and ensuring uniform stress distribution at the connection between the lidar body and the limiting frame.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. By setting up a sealing mechanism, compared with the existing technology, multiple sealing grooves and convex strips on the inner side of the gasket are used to perform multi-point contact sealing on the edge of the lens, increasing the number of sealing rings between the lens and the lidar body. At the same time, the gasket is further squeezed by multiple stops one and two, which increases the squeezing force of the gasket on the lens, reduces the possibility of the lens loosening, and improves the waterproof and leak-proof performance of the lidar body and the lens.

[0014] 2. By setting up an installation mechanism, compared with the existing technology, multiple connecting plates are used to initially position the installation of the limiting frame and the lidar body, and multiple connecting rods and positioning cylinders are used for secondary fastening. This makes the pressure generated during the assembly of the lidar body and the limiting frame relatively uniform, and allows the gasket to limit the position of the gasket and lens in a timely manner during the installation process, thereby improving the assembly efficiency of the lens and lidar body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a partial schematic diagram of the connection between the main body of the lidar and the positioning cylinder of this utility model.

[0017] Figure 3 This is a partial schematic diagram of the connection between the limiting frame and the connecting rod of this utility model.

[0018] Figure 4 This is a partial schematic diagram of the connection between the positioning cylinder and the base frame of this utility model.

[0019] Figure 5 This is a schematic diagram of the gasket structure of this utility model.

[0020] Figure 6 For the present utility model Figure 5 Enlarged diagram of A in the middle.

[0021] The attached diagram is labeled as follows: 1. Main body of the lidar; 2. Lens; 3. Washer; 4. Sealing groove; 5. Raised strip; 6. Stop block one; 7. Sealing ring; 8. Limiting frame; 9. Stop block two; 10. Connecting plate; 11. Locking block; 12. Locking groove; 13. Connecting rod; 14. Groove; 15. Positioning cylinder; 16. Base frame; 17. Top frame; 18. Limiting rod; 19. Thread; 20. Nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The embodiments disclosed in this application are as follows: Figure 1-6The waterproof and leak-proof device for the lidar lens shown includes a lidar body 1, a lens 2 mounted on one side of the lidar body 1, and a sealing mechanism on the outer side of the lens 2. The sealing mechanism includes a gasket 3, the outer side of the gasket 3 is fixedly connected to the inner side of the lidar body 1, the inner side of the gasket 3 is snapped into the outer side of the lens 2, multiple sealing grooves 4 are formed on the inner wall of the gasket 3, two protrusions 5 are fixedly connected inside the gasket 3, multiple blocks 6 are fixedly connected to the inner side of the lidar body 1, and a sealing ring 7 is fixedly connected to the outer side of the lidar body 1. The laser radar body 1 has a limiting frame 8, with multiple stop blocks 9 fixedly connected to its inner side. Multiple slots 12 are provided on the outer side of the laser radar body 1. Multiple connecting plates 10 are fixedly connected to one side of the limiting frame 8, and a locking block 11 is fixedly connected to one side of the connecting plate 10. The bottom of the locking block 11 engages with the inner side of the slot 12. An installation mechanism is provided on the outer side of the laser radar body 1. Multiple sealing grooves 4 and protrusions 5 on the inner side of the gasket 3 are used to apply multiple layers of seals to the edge of the lens 2. The mutual compression of multiple stop blocks 6 and stop blocks 9 ensures that the lens 2 maintains the stability of the installation inside the gasket 3.

[0024] Reference Figure 3 and Figure 4 As shown, the installation mechanism includes multiple connecting rods 13. One side of the connecting rod 13 is fixedly connected to one side of the limiting frame 8. A groove 14 is provided on one side of the connecting rod 13. Multiple positioning cylinders 15 are fixedly connected to the outside of the lidar body 1. A base frame 16 is fixedly connected to the bottom of the positioning cylinder 15. The inside of the positioning cylinder 15 is inserted into the outside of the connecting rod 13. A top frame 17 is fixedly connected to the top of the positioning cylinder 15. A limiting rod 18 is rotatably connected to the outside of the base frame 16. The outside of the limiting rod 18 is engaged with the inside of the groove 14. A thread 19 is provided at the top of the limiting rod 18. A nut 20 is threaded to the outside of the thread 19. The limiting frame 8 and the lidar body 1 are initially positioned by engaging the locking groove 12 on the outside of the lidar body 1 with multiple connecting plates 10 and locking blocks 11. Then, by engaging the connecting rod 13 with the positioning cylinder 15, the limiting rod 18 can engage with the groove 14 on one side of the connecting rod 13, so that the limiting frame 8 and the lidar body 1 are assembled.

[0025] The working principle of this utility model is as follows: When assembling the lidar and lens, the lens 2 is first inserted into the inside of the washer 3. The two protrusions 5 on the inner side of the washer 3 fit against the outer edge of the lens 2. Then, the two sets of sealing grooves 4 form multiple contact surfaces between the washer 3 and the lens 2, giving the washer 3 and the lens 2 good sealing performance. After that, the limiting frame 8 is aligned with one side of the lidar body 1, so that the multiple connecting plates 10 and locking blocks 11 on one side of the limiting frame 8 engage with the multiple locking grooves 12 on the outer side of the lidar body 1. At the same time, the multiple connecting rods 13 on one side of the limiting frame 8 are inserted into the inside of the positioning cylinder 15. The multiple stops 9 on the inner side of the limiting frame 8 press against one side of the washer 3, while the other side of the washer 3... Multiple stop blocks 6 and multiple stop blocks 9 work together to press the two sides of the washer 3, so that the lens 2 can be fixed between the washers 3. Then, after the limiting frame 8 and the lidar body 1 are assembled, the limiting rods 18 corresponding to one side of the multiple positioning cylinders 15 are deflected up and down, so that one end of the limiting rod 18 is inserted into the inner side of the corresponding top frame 17. At the same time, the outer side of the limiting rod 18 passes through the positioning cylinder 15 and engages with the groove 14 on one side of the connecting rod 13. Then, the nut 20 is tightened on the thread 19 at the top of the limiting rod 18, so that the nut 20 presses the top of the top frame 17. Finally, after the connecting rod 13 and the positioning cylinder 15 are inserted, the corresponding limiting rod 18 is used for limiting, thus completing the full fixation and sealing of the lens.

[0026] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof and leakage-proof device for a lidar mirror, comprising a lidar main body (1), characterized in that: A lens (2) is installed on one side of the main body (1) of the lidar, and a sealing mechanism is provided on the outside of the lens (2); The sealing mechanism includes a gasket (3), the outer side of the gasket (3) is fixedly connected to the inner side of the lidar body (1), the inner side of the gasket (3) is snapped into the outer side of the lens (2), the inner wall of the gasket (3) is provided with multiple sealing grooves (4), two protrusions (5) are fixedly connected inside the gasket (3), multiple blocks (6) are fixedly connected inside the lidar body (1), a sealing ring (7) is fixedly connected outside the lidar body (1), and a limit frame (8) is installed on one side of the lidar body (1). An installation mechanism is provided on the outside of the main body (1) of the lidar.

2. The lidar mirror water and leak protection apparatus of claim 1, wherein: Multiple stop blocks (9) are fixedly connected to the inner side of the limiting frame (8), and multiple slots (12) are opened on the outer side of the laser radar body (1).

3. The lidar mirror water and leak protection apparatus of claim 1, wherein: The limiting frame (8) is fixedly connected to a plurality of connecting plates (10) on one side, and a locking block (11) is fixedly connected to one side of the connecting plate (10), and the bottom of the locking block (11) is engaged with the inside of the locking groove (12).

4. The lidar mirror water and leak protection apparatus of claim 1, wherein: The installation mechanism includes multiple connecting rods (13), one side of which is fixedly connected to one side of the limiting frame (8), and a groove (14) is provided on one side of the connecting rod (13).

5. The lidar mirror water and leak protection apparatus of claim 1, wherein: Multiple positioning cylinders (15) are fixedly connected to the outside of the main body (1) of the laser radar. A base frame (16) is fixedly connected to the bottom of the positioning cylinder (15). The inside of the positioning cylinder (15) is inserted into the outside of the connecting rod (13).

6. The lidar mirror water and leak protection apparatus of claim 5, wherein: The top of the positioning cylinder (15) is fixedly connected to the top frame (17), and the outer side of the base frame (16) is rotatably connected to the limiting rod (18), and the outer side of the limiting rod (18) is engaged with the inner side of the groove (14).

7. The lidar lens water and leak protection apparatus of claim 6, wherein: The top of the limiting rod (18) is threaded (19), and a nut (20) is threaded to the outside of the thread (19).

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