Small laser radar lens with adjustable optical axis

Abstract

The utility model relates to the technical field of laser radar lenses, and discloses a small-sized laser radar lens with an adjustable optical axis, which comprises an installation top plate, the left side of the bottom of the installation top plate is fixedly connected with a first installation pipe, the right side of the bottom of the installation top plate is fixedly connected with a second installation pipe, and the top of the first installation pipe is provided with a light return port. A light outlet is formed in the top of the second mounting pipe, an emitting plate is arranged at the bottom of the second mounting pipe, clamping pipes are fixedly connected to the left end and the right end of the bottom of the emitting plate, and butt joint ports are slidably connected to the interiors of the clamping pipes. When the device is used, the device is fixed through the nuts and the bolts, the tail end butt joint port hole of the device is enlarged, the movement allowance is provided for the launching plate and the butt joint plate, glue is injected into the end hole openings, the launching plate and the butt joint plate are installed, the nuts and the bolts are screwed down after the device is translated to the proper position, the optical axis can be adjusted, and the precision adjusting range is widened. And the heat dissipation performance is kept.

Description

Technical Field

[0001] This utility model relates to the field of lidar lens technology, and in particular to a small lidar lens with adjustable optical axis. Background Technology

[0002] An adjustable-axis miniature lidar lens is an optical component used in lidar systems. It mainly consists of a lens group and an optical axis adjustment device. It is small in size. The lens group is used to focus and collimate the laser beam, while the optical axis adjustment device can change the relative position and angle of the lens or the laser to adjust the optical axis. This lens can emit a laser beam and receive the reflected laser signal to help the lidar system obtain information about the distance, speed and shape of the target object.

[0003] A search revealed Chinese Patent Publication No. CN212460041U, which discloses a portable lidar device, comprising an upper shell, a control and storage module, a mounting base, a scanner, a lower shell, inertial navigation system A, inertial navigation system B, an external connector, a camera, a camera mounting bracket, a lens locking ring, and a filter. The upper and lower shells are fixedly connected by the mounting base, forming an upper cavity and a lower cavity. The control and storage module, inertial navigation system A, and inertial navigation system B are disposed in the upper cavity and fixedly connected to the mounting base. The scanner is disposed in the lower cavity and fixedly connected to the mounting base. The external connector is mounted on the front side of the upper shell, the camera mounting bracket is mounted on the front side of the lower shell, the camera and lens locking ring are disposed on the camera mounting bracket, and the filter is disposed at the bottom of the lower shell. This utility model achieves miniaturization and overall aesthetics while fulfilling the functions of a lidar. It also boasts advantages such as convenient installation and maintenance, simple interface, high mobility, high structural rigidity, and strong impact resistance. However, small lidars typically use fan blades commonly found in wind power generation. In strong winds, the lidar may sway. The typical operating distance is 200m, and the design is relatively small and lightweight. Since the optical axis of conventional products cannot be adjusted, and the transmitting and receiving plates are integrated, the position of the optical axis cannot be adjusted, limiting the precision of adjustment and consequently reducing the heat dissipation performance of the transmitter and receiver on a single plate. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a small laser radar lens with adjustable optical axis, which aims to improve the problem that conventional products in the prior art have an unadjustable optical axis, and the upper transmitting plate and receiving plate are a whole, making it impossible to adjust the position of the optical axis, limiting the precision adjustment, and thus reducing the heat dissipation performance of transmitting and receiving on a single plate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a small laser radar lens with adjustable optical axis, comprising a mounting top plate, a first mounting tube fixedly connected to the bottom left side of the mounting top plate, a second mounting tube fixedly connected to the bottom right side of the mounting top plate, a light return port opened at the top of the first mounting tube, a light exit port opened at the top of the second mounting tube, an emitting plate provided at the bottom of the second mounting tube, and locking tubes fixedly connected to the bottom left and right ends of the emitting plate, with a mating interface slidably connected inside the locking tube, a docking plate fixedly connected to the bottom of the mating interface, and a shielding mechanism installed on the top of the mounting top plate for shielding the lens.

[0006] Through the above technical solution: When using this device, since the emitting plate and the light output port are connected by an enlarged slot, and the docking plate and the end of the return port also adopt this structure and are fixed by nuts and bolts, the end of the device has an enlarged interface hole to provide a margin of movement for the emitting plate and the docking plate. By injecting glue into the end hole, and then installing the emitting plate and the docking plate, and after moving it to a suitable position, tightening the nuts and bolts, the device can adjust the optical axis, improve the precision adjustment range, and at the same time maintain heat dissipation performance.

[0007] As a further description of the above technical solution:

[0008] The shielding mechanism includes a top cover, which is installed on top of the mounting plate. A rotating rod is rotatably connected to the bottom rear end of the top cover. Transparent plates are rotatably connected to the left and right ends of the middle of the top cover. A rotating shaft is rotatably connected to the opposite sides of the two transparent plates. A fixing plate is fixedly connected to the left and right ends of the top of the top of the top cover. A fixing short rod is fixedly connected to the adjacent sides of the top of the two transparent plates. A connecting rope is fixedly connected to the opposite sides of the two fixing short rods.

[0009] The above technical solution works as follows: First, the top cover is moved to the top of the mounting plate via the rotating rod, protecting the device from corrosion. The transparent plate ensures recycling efficiency. If the transparent plate is not needed, the connecting rope is pulled simultaneously to change the angle of the fixed short rod. The position of the connecting rope is kept unchanged by the fixed plate. If the transparent plate needs to be moved, it is snapped into the locking plate, which ensures that the shielding mechanism can protect the lens and extend its service life.

[0010] As a further description of the above technical solution:

[0011] A handle is installed on the top front side of the top cover, and screws are threaded to both the left and right ends of the handle.

[0012] The above technical solution facilitates the rotation of the top cover by installing a handle.

[0013] As a further description of the above technical solution:

[0014] A pull ring is fixedly connected to the bottom of the connecting rope, and a protective sleeve is installed on the outside of the pull ring. The left and right ends of the top cover are fixedly connected with locking plates.

[0015] The above technical solution facilitates the pulling of the connecting rope by installing a pull ring.

[0016] As a further description of the above technical solution:

[0017] A buffer rod is fixedly connected to the bottom front side of the top cover, a female buckle is fixedly connected to the bottom of the buffer rod, and a female buckle is provided at the bottom of the female buckle.

[0018] The above technical solution ensures that the top cover will not collide with the mounting plate by means of the engagement of the male and female buckles.

[0019] As a further description of the above technical solution:

[0020] Support rods are fixedly connected to all four sides of the outer side of the first mounting tube, and connecting rods are fixedly connected to the front and rear ends of the left side of the second mounting tube.

[0021] The above technical solution, through the installation of support rods, makes the device more stable.

[0022] As a further description of the above technical solution:

[0023] A connecting plate is fixedly connected to the bottom front side of the transmitter plate. A warning sticker is installed on the bottom of the connecting plate. Nuts are threaded to the four corners of the top of the mounting plate, and bolts are threaded to the outside of the nuts.

[0024] The above technical solution allows the device to be installed more securely by using bolts and nuts.

[0025] As a further description of the above technical solution:

[0026] A mounting plate is fixedly connected to the bottom front left end of the launch plate, and anti-slip texture is provided on the outer side of the first mounting tube.

[0027] The above technical solution, through the creation of anti-slip textures, makes the device less likely to slip out of your hand when you pick it up.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, when using this device, the emitting plate and the light outlet are connected by an enlarged slot, and the docking plate and the end of the return port also adopt this structure and are fixed by nuts and bolts. The end of the device has an enlarged interface hole to provide a margin of movement for the emitting plate and the docking plate. By injecting glue into the end hole, the emitting plate and the docking plate are installed. After being moved to a suitable position, the nuts and bolts are tightened so that the device can adjust the optical axis, improve the precision adjustment range, and maintain heat dissipation performance.

[0030] 2. In this utility model, firstly, rotate the handle of the screw installation so that the top cover reaches the top of the mounting plate through the rotating rod and is fixed with the female buckle to protect the device from corrosion. The transparent plate ensures recycling efficiency. If the transparent plate is not needed, slide the pull ring in the protective sleeve and pull the connecting rope simultaneously to change the angle of the fixed short rod. The position of the connecting rope remains unchanged through the fixed plate. If the transparent plate needs to be moved, it is snapped into the locking plate to ensure that the shielding mechanism can protect the lens and extend its service life. Attached Figure Description

[0031] Figure 1 A perspective view of a small laser radar lens with adjustable optical axis proposed in this utility model;

[0032] Figure 2 This is a front view of a small laser radar lens with adjustable optical axis proposed in this utility model.

[0033] Figure 3 This is a top view of a small lidar lens with adjustable optical axis proposed in this utility model.

[0034] Figure 4 This is a partial structural exploded view of a small laser radar lens with adjustable optical axis proposed in this utility model.

[0035] Figure 5 This is an exploded view of the blocking mechanism of a small laser radar lens with adjustable optical axis proposed in this utility model.

[0036] Legend:

[0037] 1. Mounting top plate; 2. Shielding mechanism; 201. Top cover; 202. Rotating shaft; 203. Fixing plate; 204. Connecting rope; 205. Transparent plate; 206. Fixing short rod; 207. Rotating rod; 3. Nut; 4. Emitter plate; 5. Connecting plate; 6. Handle; 7. Support rod; 8. Screw; 9. First mounting tube; 10. Connecting rod; 11. Second mounting tube; 12. Anti-slip texture; 13. Bolt; 14. Pull ring; 15. Protective sleeve; 16. Clamping tube; 17. Clamping plate; 18. Reflector port; 19. Emitter port; 20. Mounting plate; 21. Connecting interface; 22. Warning sticker; 23. Connecting plate; 24. Buffer rod; 25. Female buckle; 26. Female buckle. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a small laser radar lens with adjustable optical axis, including a mounting top plate 1. A first mounting tube 9 is fixedly connected to the bottom left side of the mounting top plate 1, and a second mounting tube 11 is fixedly connected to the bottom right side of the mounting top plate 1. The installation of the first mounting tube 9 and the second mounting tube 11 provides sufficient internal space for easy structural movement. A light return port 18 is provided at the top of the first mounting tube 9, and a light exit port 19 is provided at the top of the second mounting tube 11. An emitting plate 4 is provided at the bottom of the second mounting tube 11, and locking tubes 16 are fixedly connected to the left and right ends of the bottom of the emitting plate 4. The interior of the locking tubes 16... The sliding connection has a mating interface 21. The installation of the snap-fit ​​tube 16 makes the mating interface 21 more stable when docking. The bottom of the mating interface 21 is fixedly connected to the docking plate 5. The top of the mounting plate 1 is equipped with a shielding mechanism 2 for shielding the lens. The outer perimeter of the first mounting tube 9 is fixedly connected to the support rods 7. The front and rear ends of the left side of the second mounting tube 11 are fixedly connected to the connecting rods 10. The bottom front side of the emission plate 4 is fixedly connected to the connecting plate 23. The bottom of the connecting plate 23 is equipped with a warning sticker 22. Nuts 3 are threadedly connected to the four corners of the top of the mounting plate 1. Bolts 13 are threadedly connected to the outer side of the nuts 3.

[0040] Specifically, in using this device, the emitting plate 4 is first installed on top of the return port 18, and then the docking plate 5 is installed at the return port 18. This process improves the recovery efficiency. To achieve this, the connection between the emitting plate 4 and the output port 19 adopts an enlarged slot design. Similarly, the end connection structure between the docking plate 5 and the return port 18 also adopts an enlarged slot design, allowing the emitting plate 4 and the docking plate 5 to move within a certain range, with a displacement distance of one to two millimeters. To ensure stability, they are fixed by installing nuts 3 and bolts 13. In addition, the holes at the corresponding ends of the device are enlarged to facilitate... The transmitter plate 4 and the docking plate 5 have appropriate allowance for movement at the corresponding positions of the holes. Each transmitter plate 4 and docking plate 5 has holes with allowance for the corresponding screw holes. During installation, the transmitter plate 4 and docking plate 5 can be installed by injecting glue into the holes at the ends and then moved to the appropriate position. Subsequently, the nut 3 and bolt 13 are tightened to ensure the stability of the installation. Through the above process, the optical axis of this device can be adjusted, thereby improving the accuracy adjustment range and avoiding the reduction of heat dissipation performance. The installation of the warning sticker 22 makes it easier for the staff to understand the device. The installation of the support rod 7 makes the device more stable.

[0041] Reference Figure 1 , Figure 3 and Figure 5 The shielding mechanism 2 includes a top cover 201, which is installed on top of the mounting plate 1. A rotating rod 207 is rotatably connected to the rear bottom of the top cover 201. Transparent plates 205 are rotatably connected to the left and right ends of the middle part of the top cover 201. The installation of transparent plates 205 avoids adverse effects on the recycling rate. A rotating shaft 202 is rotatably connected to the opposite side of the two transparent plates 205. Fixed plates 203 are fixedly connected to the left and right ends of the top of the top cover 201. Fixed short rods 206 are fixedly connected to the adjacent sides of the top of the two transparent plates 205. A connecting rope 204 is fixedly connected to each side of the transparent plate 205. The installation of the connecting rope 204 facilitates the change of the angle of the transparent plate 205. A handle 6 is installed on the front top of the top cover 201. Screws 8 are threaded to the left and right ends of the handle 6. A pull ring 14 is fixedly connected to the bottom of the connecting rope 204. A protective sleeve 15 is installed on the outside of the pull ring 14. A locking plate 17 is fixedly connected to the left and right ends of the top cover 201. A buffer rod 24 is fixedly connected to the front bottom of the top cover 201. A female buckle 25 is fixedly connected to the bottom of the buffer rod 24. A female buckle 26 is provided at the bottom of the female buckle 25.

[0042] Specifically, during the installation of this device, the first step is to rotate the handle 6, which is fixed in place by screw 8. After rotating the handle 6, the top cover 201 will rotate via the rotating rod 207, eventually rotating to the top of the mounting plate 1. It is then secured by the interlocking of the female buckle 25 and the male buckle 26, thus protecting the device from external environmental corrosion and damage. Since both the top cover 201 and the mounting plate 1 are made of transparent material, they will not negatively affect the device's recycling efficiency. When the transparent plate 205 is no longer needed, the operator first needs to slide it downwards... The pull ring 14 inside the protective sleeve 15 allows the connecting ropes 204 on both sides to be pulled downwards synchronously. As the connecting ropes 204 are pulled, the fixed short rod 206 will change its angle through the rotation of the rotating shaft 202. In order to ensure that the position of the connecting ropes 204 remains unchanged, it is necessary to install the fixing plate 203. When it is necessary to keep the transparent plate 205 in a fixed position, the connecting ropes 204 on both sides can be snapped into the inside of the snap-fit ​​plate 17. Through the above process, the shielding mechanism 2 can effectively shield the device, thereby avoiding the adverse effects of the external environment on the lens and extending the service life of the device.

[0043] Reference Figure 1 , Figure 2 and Figure 3 A mounting plate 20 is fixedly connected to the bottom front left end of the launch plate 4, and anti-slip texture 12 is provided on the outer side of the first mounting tube 9.

[0044] Specifically, the anti-slip texture 12 prevents the item from slipping out of your hand when you pick it up.

[0045] Working principle: When this device is needed, the emitting plate 4 is installed on the top of the return port 18, and the docking plate 5 is set at the return port 18 to improve the recovery efficiency. The connection between the emitting plate 4 and the light output port 19 is set with an enlarged slot, and the end connection structure between the docking plate 5 and the return port 18 is also set with an enlarged slot, so that the two can be moved a certain distance, with a displacement distance of one to two millimeters, and are fixed by the installation of nuts 3 and bolts 13. In addition, the holes at the corresponding ends of the device are enlarged to allow the emitting plate 4 and the docking plate 5 to have a certain amount of movement at the corresponding hole positions. The corresponding emitting plate 4 and docking plate 5 are provided with holes with a certain amount of space for the corresponding screw holes. During the installation process, the emitting plate 4 and the docking plate 5 can be installed by injecting glue into the holes at the ends, and then moved to the appropriate position. Then the nuts 3 and bolts 13 are tightened. Through the above process, the device can adjust the optical axis, improve the accuracy adjustment range, and avoid the reduction of heat dissipation performance.

[0046] When installing this device, first rotate the handle 6, which is installed by screw 8, so that the top cover 201 rotates to the top of the mounting plate 1 via the rotating rod 207. The device is then secured by the engagement of the female buckle 25 and the male buckle 26, thus protecting it from external corrosion. Since both transparent plates 205 are transparent, this prevents a decrease in recycling efficiency. When the transparent plates 205 are not needed, first slide the pull ring 14, protected by the protective sleeve 15, downwards, causing the connecting ropes 204 on both sides to pull downwards simultaneously. This causes the fixing rod 206 to change angle via the installation of the rotating shaft 202. The installation of the fixing plate 203 ensures that the position of the connecting ropes 204 does not change. When the transparent plates 205 are no longer needed, simply engage the connecting ropes 204 on both sides into the engagement plate 17. Through the above process, the shielding mechanism 2 can shield the device, preventing adverse effects of the external environment on the lens and extending its service life.

[0047] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A small laser radar lens with adjustable optical axis, comprising a mounting top plate (1), characterized in that: The bottom left side of the mounting plate (1) is fixedly connected to a first mounting tube (9), and the bottom right side of the mounting plate (1) is fixedly connected to a second mounting tube (11). The top of the first mounting tube (9) is provided with a light return port (18), and the top of the second mounting tube (11) is provided with a light exit port (19). The bottom of the second mounting tube (11) is provided with an emission plate (4). The bottom left and right ends of the emission plate (4) are fixedly connected with locking tubes (16). The inside of the locking tube (16) is slidably connected with a mating interface (21). The bottom of the mating interface (21) is fixedly connected with a docking plate (5). The top of the mounting plate (1) is equipped with a shielding mechanism (2), which is used to shield the lens.

2. The small laser radar lens with adjustable optical axis according to claim 1, characterized in that: The shielding mechanism (2) includes a top cover (201), which is installed on the top of the mounting plate (1). A rotating rod (207) is rotatably connected to the bottom rear end of the top cover (201). A transparent plate (205) is rotatably connected to the left and right ends of the middle part of the top cover (201). A rotating shaft (202) is rotatably connected to the opposite side of the two transparent plates (205). A fixing plate (203) is fixedly connected to the left and right ends of the top of the top of the top cover (201). A fixing short rod (206) is fixedly connected to the adjacent side of the top of the two transparent plates (205). A connecting rope (204) is fixedly connected to the opposite side of the two fixing short rods (206).

3. A small laser radar lens with adjustable optical axis according to claim 2, characterized in that: A handle (6) is installed on the front top of the top cover (201), and screws (8) are threaded to both the left and right ends of the handle (6).

4. A small laser radar lens with adjustable optical axis according to claim 2, characterized in that: The bottom of the connecting rope (204) is fixedly connected to a pull ring (14), and a protective sleeve (15) is installed on the outside of the pull ring (14). The left and right ends of the top cover (201) are both fixedly connected to a locking plate (17).

5. A small laser radar lens with adjustable optical axis according to claim 2, characterized in that: A buffer rod (24) is fixedly connected to the bottom front side of the top cover (201), and a female buckle (25) is fixedly connected to the bottom of the buffer rod (24). A female buckle (26) is provided at the bottom of the female buckle (25).

6. A small laser radar lens with adjustable optical axis according to claim 1, characterized in that: Support rods (7) are fixedly connected to the outer periphery of the first mounting tube (9), and connecting rods (10) are fixedly connected to the front and rear ends of the left side of the second mounting tube (11).

7. A small laser radar lens with adjustable optical axis according to claim 1, characterized in that: A connecting plate (23) is fixedly connected to the bottom front side of the launch plate (4). A warning sticker (22) is installed on the bottom of the connecting plate (23). Nuts (3) are threadedly connected to the four corners of the top of the mounting plate (1). Bolts (13) are threadedly connected to the outer side of the nuts (3).

8. A small laser radar lens with adjustable optical axis according to claim 1, characterized in that: The bottom front left end of the launch plate (4) is fixedly connected to the mounting plate (20), and the outer side of the first mounting tube (9) is provided with anti-slip texture (12).

Images