A lidar device for detecting a ship

Abstract

The application relates to a laser radar device for detecting a ship, and relates to the technical field of ship detection, which comprises a laser radar assembly and a supporting rod arranged in water, a first floating plate and a second floating plate are slidably arranged on the supporting rod, the laser radar assembly is arranged on the first floating plate, the first floating plate and the second floating plate are arranged in an up-down mode, the first floating plate is connected with the supporting rod through a sliding locking assembly, the sliding locking assembly is provided with a first state capable of only sliding upwards and a second state capable of bidirectional sliding, a steering assembly for adjusting the state of the sliding locking assembly is arranged on the first floating plate, a first push block is arranged on the second floating plate, the first push block extrudes the steering assembly so that the sliding locking assembly is in the first state, and a second push block is arranged on the second floating plate, the second push block extrudes the steering assembly so that the sliding locking assembly is in the second state. The application has the effect that the laser radar can change along with the change of the water level, thereby improving the convenience of using the laser radar device.

Description

Technical Field

[0001] This application relates to the field of ship inspection technology, and in particular to a lidar device for inspecting ships. Background Technology

[0002] LiDAR is a radar system that uses laser beams to detect the position, speed, and other characteristics of targets. LiDAR is widely used in bridge collision avoidance. By scanning and monitoring ships passing on the water, LiDAR can predict the ship's route and guide the ship's navigation, thereby reducing or avoiding collision accidents.

[0003] When installing lidar, it is usually installed at a specific height on a bridge pier to monitor ships. However, the water level changes over time. When the water level rises, the lidar is easily submerged. When the water level drops, ships are easily located below the lidar's scanning range, making it impossible for the lidar to scan the ships, thus causing inconvenience in the use of lidar. Summary of the Invention

[0004] To address the inconvenience caused by changes in water level, this application provides a lidar device for detecting ships.

[0005] The lidar device for detecting ships provided in this application adopts the following technical solution:

[0006] A lidar device for detecting ships includes a lidar assembly and a support rod disposed in water. A first float and a second float are slidably mounted on the support rod. The lidar assembly is disposed on the first float, which is positioned above the second float. The first float and the support rod are connected by a sliding locking assembly. The sliding locking assembly has a first state that can only slide upwards and a second state that can slide in both directions. The first float has a steering component for adjusting the state of the sliding locking assembly. The second float has a first pusher for pushing the first float downwards. The first pusher presses against the steering assembly, causing the sliding locking assembly to be in the first state. The second float has a second pusher for pushing the first float upwards. The second pusher presses against the steering assembly, causing the sliding locking assembly to be in the second state. The distance between the first pusher and the second pusher is greater than the thickness of the first float.

[0007] By adopting the above technical solution, when installing the lidar device, the lidar component is first installed on the first float. When the water level rises, the second float rises along the support rod. At this time, the second pusher presses the steering component, and the steering component, through the sliding locking component, causes the first float to rise unilaterally. The second float then drives the first float to rise, thus causing the lidar component to rise with the water level. When the water level drops, the second float drops with the water level, while the first float remains in the first state. When the second float drops to a certain extent, the first pusher presses the steering component, causing the first float to be in the second state. At this time, the first float, under its own weight, descends onto the second pusher, thus allowing the lidar to change with the water level, thereby improving the ease of use of the lidar device.

[0008] In one specific implementation, the sliding locking assembly includes a spiral sleeve, a brake gear, and a one-way conversion element. The spiral sleeve is sleeved on the support rod and drives the support rod in a spiral motion. The spiral sleeve is rotatably disposed with the first float plate. The brake gear is coaxially fixedly disposed on the spiral sleeve. The one-way conversion element is used to adjust the conversion between one-way rotation and two-way rotation of the brake gear.

[0009] By adopting the above technical solution, when the water level rises, the second float pushes the first float upward through the second pusher block. The first float drives the spiral sleeve to move upward and rotates. At this time, the brake gear can rotate under the action of the one-way conversion component, so that the first float can rise. When the water level begins to drop, the first float tends to drop under its own weight. At this time, the brake gear tends to reverse. The one-way conversion component restricts the brake gear from reversing, so that the first float maintains its original height, so that the first float can be located at the highest position of the water waves.

[0010] In one specific implementation, the one-way conversion component includes a rotating gear ring, a support plate, and a one-way plate. The rotating gear ring is rotatably mounted on the first floating plate. The brake gear is coaxially mounted inside the rotating gear ring. The support plate is mounted on the rotating gear ring. One end of the one-way plate is rotatably mounted to the support plate and is inserted into the tooth groove of the brake gear. The support plate is provided with a limiting block for restricting the brake gear from pushing the one-way plate to rotate. The steering assembly controls the rotation or fixation of the rotating gear ring.

[0011] By adopting the above technical solution, when the first float rises, the steering assembly fixes the rotating gear ring, and then the spiral sleeve drives the brake gear to rotate. The brake gear drives the one-way plate support plate to rotate, so that the first float can rise. When the water level begins to drop, the one-way plate, under the restriction of the support plate, causes the one-way plate to lock the brake gear, so that the brake gear remains fixed, thereby keeping the first float at its original height.

[0012] In one specific implementation, the steering assembly includes an adjusting motor and a fixing rod. The fixing rod is used to insert into the rotating gear ring. The adjusting motor drives the fixing rod to move through a sliding member. The first float plate is provided with a first electrical connector and a second electrical connector. The first push block is provided with a third electrical connector that is electrically connected to the first electrical connector. The second push block is provided with a fourth electrical connector that is electrically connected to the second electrical connector.

[0013] The first electrical connector is electrically connected to the third electrical connector, so that the adjusting motor drives the fixed rod away from the rotating gear ring;

[0014] The second electrical connector is electrically connected to the fourth electrical connector, causing the adjusting motor to drive the fixed rod to move toward the rotating gear ring.

[0015] By adopting the above technical solution, when the second electrical connector and the fourth electrical connector are electrically connected, the adjusting motor drives the fixing rod to insert into the tooth groove of the rotating tooth ring, thereby fixing the rotating tooth ring. When the first electrical connector and the third electrical connector are electrically connected, the adjusting motor drives the fixing rod to pull out of the tooth groove of the rotating tooth ring, thereby releasing the fixing of the rotating tooth ring.

[0016] In one specific implementation, at least two rotating rods are rotatably provided on the first float plate, each rotating rod is arranged in parallel with the other, the line connecting the rotation centers of each rotating rod is parallel to the fixed rod, the output shaft of the adjusting motor is connected to the rotation center of the rotating rod, each rotating rod is provided with a sliding groove, the fixed rod is provided with a sliding shaft for sliding in the sliding groove, and the first float plate is provided with a pressing member for restricting the fixed rod from disengaging from the rotating toothed ring.

[0017] By adopting the above technical solution, when the fixing rod is inserted into the tooth groove of the rotating tooth ring, the fixing rod slides along the tooth edge of the rotating tooth ring toward the bottom of the tooth groove. At this time, the rotating shaft can slide in the groove. When the fixing rod is inserted into the bottom of the tooth groove of the rotating tooth ring, the fixing rod is pressed into the tooth groove of the rotating tooth ring by the pressing component. The reliability of fixing the rotating tooth ring by the fixing rod being inserted into the bottom of the tooth groove of the rotating tooth ring is improved.

[0018] In one specific implementation, the extrusion member includes a linear motor and an extrusion plate, the extrusion plate being disposed on the output shaft of the linear motor, and the extrusion plate being used to extrude the fixed rod.

[0019] By adopting the above technical solution, when the fixed rod is squeezed, the linear motor drives the extrusion plate to squeeze the fixed rod, thereby realizing the squeezing of the fixed rod.

[0020] In one specific implementation, the rotating rod is provided with limiting springs to restrict the sliding shaft from sliding to both ends of the slide groove.

[0021] By adopting the above technical solution, the limiting spring can effectively prevent the slide shaft from sliding back and forth in the slide groove when it is subjected to sliding, thereby improving the stability of the connection between the slide shaft and the slide groove.

[0022] In one specific implementation, the support rod is provided with a first spiral groove and a plurality of balls, the plurality of balls being slidably disposed with the first spiral groove, the inner sidewall of the spiral sleeve is provided with a second spiral groove for the balls to slide, and the spiral sleeve is provided with a limiting block for restricting the balls from sliding out of the second spiral groove.

[0023] By adopting the above technical solution, while the spiral sleeve moves along the support rod, the spiral sleeve rotates due to the cooperation of the balls with the first spiral groove and the second spiral groove. At the same time, the balls can reduce the friction between the spiral sleeve and the support rod.

[0024] In one specific implementation, the first floating plate is rotatably provided with a rotating plate for placing the lidar component, and the first floating plate is provided with a rotating motor for driving the rotating plate to rotate.

[0025] By adopting the above technical solution, the rotating motor drives the lidar component to rotate through the rotating plate, thereby increasing the scanning and detection range of the lidar component on the river surface.

[0026] In one specific implementation, the first floating plate is provided with a protective cover for covering the lidar assembly, the protective cover is provided with a detection window, and the protective cover is provided with a transparent plate for blocking the detection window.

[0027] By adopting the above technical solution, the protective cover can protect the lidar components from moisture, and the lidar components can scan and detect the river surface through the transparent plate of the detection window.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. When installing the lidar device, the lidar component is first installed on the first float. When the water level rises, the second float pushes the steering component through the second push block and drives the first float to rise unilaterally through the sliding locking component, so that the lidar component rises with the water level. When the water level drops, the second float drops with the water level. At this time, the first float still maintains the first state. When the second float drops to a certain extent, the first push block pushes the steering component, so that the first float is in the second state. At this time, the first float drops onto the second push block under its own weight, so that the lidar can change with the water level, thereby improving the convenience of using the lidar device.

[0030] 2. When the second float moves the first float up and down, the second float can push the first float to the highest position of the water surface swaying. Then, as the water surface sways, the first float maintains the highest position, thereby reducing the impact of the water surface swaying on the object detected by the lidar component on the first float. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a lidar device for detecting ships according to an embodiment of this application.

[0032] Figure 2 It is along Figure 1 A cross-sectional view along line AA in the middle.

[0033] Figure 3 It is along Figure 1 A cross-sectional view along the BB line.

[0034] Figure 4 yes Figure 2 Enlarged view of section C.

[0035] Figure 5 This is an exploded view used to show the second spiral groove.

[0036] Figure 6 This is a structural diagram used to illustrate the steering component.

[0037] Figure 7 yes Figure 6 Enlarged view of section D in the middle.

[0038] Figure 8 yes Figure 6 Enlarged view of section E in the middle.

[0039] Explanation of reference numerals in the attached drawings: 1. LiDAR assembly; 2. Support rod; 21. First spiral groove; 3. Guide rod; 41. First float; 411. Rotating motor; 412. Rotating plate; 413. Protective cover; 414. Detection window; 415. Transparent plate; 416. Adjustment cavity; 42. Second float; 5. Sliding locking assembly; 51. Spiral sleeve; 511. Second spiral groove; 512. Ball bearing; 513. Limiting block; 514. Thrust ball bearing; 52. Brake gear; 53. One-way conversion component; 531. Rotating gear ring; 5 32. Support plate; 533. One-way plate; 534. Limiting block; 535. Telescopic spring; 6. Steering assembly; 61. Adjusting motor; 62. Fixed rod; 63. Sliding component; 631. Rotating rod; 632. Slide groove; 633. Sliding shaft; 634. Sliding block; 635. Limiting spring; 64. Extrusion component; 641. Extrusion plate; 642. Linear motor; 7. Connecting rod; 71. First push block; 72. Second push block; 81. First electrical connector; 82. Second electrical connector; 83. Third electrical connector; 84. Fourth electrical connector. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0041] This application discloses a lidar device for detecting ships.

[0042] Reference Figure 1 , Figure 2 and Figure 3A lidar device for detecting ships includes a lidar assembly 1 and a support rod 2 and a guide rod 3 vertically installed in the water. The lidar assembly 1 includes a solid-state lidar unit. The support rod 2 is equipped with a first float 41 and a second float 42. Both the guide rod 3 and the support rod 2 pass through the second float 42 and the first float 41 from bottom to top. The second float 42 floats on the water surface. The lidar assembly 1 is mounted on the first float 41. The first float 41 is connected to the support rod 2 by a sliding locking assembly 5. The first float 41 is equipped with a steering assembly 6, which controls the locking and unlocking of the sliding locking assembly 5. When the steering assembly 6 locks the sliding locking assembly 5, the first float 41 can only slide upwards along the support rod 2 in a first state. When the steering assembly 6 controls the sliding locking assembly 5 to unlock, the first float 41 is in a second state where it can slide up and down along the support rod 2. The second float 42 is provided with a connecting rod 7, which passes through the first float 41 from bottom to top. The connecting rod 7 is fixedly provided with a first push block 71 and a second push block 72. The first float 41 is located between the first push block 71 and the second push block 72. When the first push block 71 presses the steering assembly 6, the first float 41 is in the second state. When the second push block 72 presses the steering assembly 6, the second float 42 is in a first state. The second state continues from the first push block 71 pressing the steering assembly 6 to the second push block 72 pressing the steering assembly 6. The first state continues from the second push block 72 pressing the steering assembly 6 to the first push block 71 pressing the steering assembly 6.

[0043] Initially, the second float 42 floats on the water surface, and the first float 41 abuts against the second push block 72, creating a certain distance between them. When the water level rises, the water surface causes the second float 42 to rise, and the second float 42 pushes the first float 41 upward via the second push block 72. At this time, the first float 41 is in its first state, causing the second float 42 to lift the first float 41. When the water level drops, the second float 42 descends. At the beginning of the descent, the first float 41 slides between the first push block 71 and the second push block 72, at which point the first float 41 remains stationary, thus keeping the water surface... Under a certain degree of floating, the first float 41 can remain stationary, and at the highest position of the floating water surface, the first float 41 is at which the water surface floating reduces the swaying of the first float 41, thereby improving the detection stability of the lidar component 1. When the water surface drops a large distance, the second float 42 drives the first push block 71 to squeeze the steering component 6, so that the first float 41 is in the second state. At this time, the first float 41 slides down along the support rod 2 under its own weight and finally falls onto the second push block 72 to stop, thereby realizing the automatic adjustment of the lidar component 1 with the water surface height, thereby improving the convenience of using the lidar.

[0044] Reference Figure 1 , Figure 3A rotating motor 411 is provided on the first floating plate 41. A rotating plate 412 is fixedly provided on the output shaft of the rotating motor 411. The lidar component 1 is placed on the rotating plate 412. A protective cover 413 is fixedly provided on the first floating plate 41, covering both the lidar and the rotating motor 411. A detection window 414 is provided on the protective cover 413, and the detection window 414 is arranged around the protective cover 413. A transparent plate 415 for blocking the detection window 414 is fixedly provided on the protective cover 413. In this embodiment, the transparent plate 415 is a glass plate, but in other embodiments it can be a transparent plastic plate. In addition, a millimeter-wave radar component (not shown in the figure) can also be installed on the first floating plate 41. The millimeter-wave radar component works in conjunction with the lidar component 1 to cope with different weather conditions.

[0045] The lidar component 1 is rotated by the rotating motor 411. The lidar component 1 can scan and monitor the water surface through the transparent plate 415. The lidar component 1 can be protected by the protective cover 413.

[0046] Reference Figure 3 , Figure 4 The sliding locking assembly 5 includes a spiral sleeve 51, a brake gear 52, and a one-way conversion component 53. The first float 41 has an adjustment cavity 416 with a groove on its top wall. A support rod 2 is inserted into the groove. The support rod 2 has a first spiral groove 21 along its length. The spiral sleeve 51 is fitted onto the support rod 2 and inserted into the groove. The inner wall of the spiral sleeve 51 has a second spiral groove 511, which engages with the first spiral groove 21. The support rod 2 has a mechanism for engaging the first spiral groove 21 and the second spiral groove 511. Several inner sliding balls 512 are provided. A limiting block 513 is detachably provided on the spiral sleeve 51. One end of the second spiral groove 511 is blocked from sliding out by the limiting block 513. The other end of the second spiral groove 511 is a blind end. A thrust ball bearing 514 is sleeved on the spiral sleeve 51. The inner ring of the spiral sleeve 51 and the thrust ball bearing 514 are interference-fitted. The outer ring of the thrust ball bearing 514 is interference-fitted with the groove wall. The length of the spiral sleeve 51 is greater than the thickness of the thrust ball bearing 514. A brake gear 52 is sleeved on the spiral sleeve 51 and inserted into the adjustment cavity 416.

[0047] Reference Figure 6 , Figure 7The one-way conversion component 53 includes a rotating gear ring 531, a support plate 532, and a one-way plate 533. The rotating gear ring 531 is slidably mounted on the top wall of the adjusting cavity 416. The axis of the rotating gear ring 531 is collinear with the axis of the brake gear 52, and the rotating gear ring 531 rotates around its own axis. The support plate 532 is fixedly mounted on the inner side wall of the rotating gear ring 531. One end of the one-way plate 533 is hinged to the support plate 532, and the other end of the one-way plate 533 is inserted into the tooth groove of the brake gear 52. The support plate 532 is located near the brake gear 52. One end is provided with a limiting block 534 for restricting the rotation of the one-way plate 533. The support plate 532 is provided with a telescopic spring 535 for pulling the one-way plate 533 to fit against the limiting block 534. When the first float plate 41 moves upward, the brake gear 52 pushes the one-way plate 533 to rotate, causing the one-way plate 533 to slide out of the tooth groove of the brake gear 52. At the same time, the one-way plate 533 disengages from the limiting block 534. When the second push block 72 disengages from the first float plate 41, the one-way plate 533 inserts into the tooth groove of the brake gear 52, and the one-way plate 533 presses against the limiting block 534.

[0048] Reference Figure 6 , Figure 8 The steering assembly 6 includes an adjusting motor 61 and a fixing rod 62. The adjusting motor 61 has a self-locking function, and remains in a self-locking state when the power is off. The adjusting motor 61 is fixedly installed in the adjusting cavity 416. One end of the fixing rod 62 is the tip that inserts into the tooth groove of the rotating gear ring 531. The bottom wall of the adjusting cavity 416 is provided with a sliding member 63 for the fixing rod 62 to slide. The bottom wall of the adjusting cavity 416 is provided with a pressing member 64 for pressing the fixing rod 62. The sliding member 63 includes at least two rotating rods 631. In this embodiment, there are two rotating rods 631. One end of each rotating rod 631 is rotatably set with respect to the top wall of the adjusting cavity 416. The output shaft of the adjusting motor 61 is aligned with the rotation circle of the rotating rod 631. The device is fixed in place, with two rotating rods 631 arranged in parallel. Each rotating rod 631 has a sliding groove 632 along its length. A fixed rod 62 has a sliding shaft 633 for sliding within the sliding groove 632. The line connecting the fixed rod 62 and the rotation points of the two rotating rods 631 is parallel. A sliding block 634 is slidably provided on the side wall of each sliding groove 632. The sliding shaft 633 is inserted into the sliding block 634 and slides with it. The two sides of the sliding block 634 are connected to the groove wall of the sliding groove 632 on the same side by a limiting spring 635. One end of the limiting spring 635 is fixedly connected to the side wall of the sliding groove 632, and the other end is fixedly connected to the sliding block 634.

[0049] Reference Figure 2 , Figure 6In this embodiment, the extrusion member 64 includes an extrusion plate 641 and a linear motor 642. In other embodiments, an electric cylinder can also be used to extrude the fixed rod 62. The extrusion plate 641 is fixedly mounted on the output shaft of the linear motor 642. The linear motor 642 has a self-locking function. When the fixed rod 62 is inserted into the tooth groove of the rotating gear ring 531, the linear motor 642 drives the extrusion plate 641 to extrude the fixed rod 62. The first push block 71 is provided with a first electrical connector 81, and the second push block 72 is provided with a second electrical connector 82. The top wall of the first floating plate 41 is... A third electrical connector 83 is provided, which is electrically connected to the first electrical connector 81. A fourth electrical connector 84 is provided on the bottom wall of the first float plate 41, which is electrically connected to the second electrical connector 82. Both the third electrical connector 83 and the fourth electrical connector 84 are electrically connected to the linear motor 642. When the first electrical connector 81 is electrically connected to the third electrical connector 83, the adjusting motor 61 drives the fixing rod 62 to pull out of the tooth groove of the rotating tooth ring 531. When the second electrical connector 82 is electrically connected to the fourth electrical connector 84, the adjusting motor 61 drives the fixing rod 62 to insert into the tooth groove of the rotating tooth ring 531.

[0050] As the water level rises, the second float 42 rises, causing the second pusher block 72 to press against the first float 41. At this time, the fourth electrical connector 84 on the second pusher block 72 is electrically connected to the second electrical connector 82. The regulating motor 61 then drives the rotating rod 631 to rotate towards the rotating gear ring 531, causing the fixing rod 62 to insert into the tooth groove of the rotating gear ring 531. Then, the linear motor 642 drives the pressing plate 641 to press against the fixing rod 62, fixing the rotating gear ring 531. As the water level rises, the second pusher block 72 pushes the first float 41... As the float 41 moves upward, the first float 41 drives the spiral sleeve 51 to move upward along the support rod 2. At this time, the spiral sleeve 51 drives the brake gear 52 to rotate as it moves upward. The brake gear 52 pushes the one-way plate 533 to rotate. The one-way plate 533 slides out of the tooth groove of the brake gear 52, allowing the brake gear 52 to rotate. This allows the second float 42 to push the first float 41 to rise, so that the lidar component 1 on the first float 41 rises with the water level, thus effectively preventing the lidar component 1 from being submerged.

[0051] As the water level begins to drop, the second float 42 descends, and the first float 41 tends to descend along with it. At this time, the spiral sleeve 51 tends to drive the brake gear 52 to rotate in the opposite direction. Under the pull of the telescopic spring 535, the one-way plate 533 inserts into the tooth groove of the brake gear 52. The one-way plate 533 contacts the limiting block 534, keeping the brake gear 52 and the rotating toothed ring 531 stationary. Therefore, the first float 41 maintains its original height. As the water level continuously drives the second float 42 to float up and down, the first float 41 can remain at the highest point of the water surface, thereby reducing the impact of water waves on the detection of the lidar component 1.

[0052] When the water level drops significantly, the second float 42 drives the first electrical connector 81 on the first push block 71 to connect electrically with the third electrical connector 83. At this time, the linear motor 642 first drives the pressing plate 641 to slide away from the fixed rod 62, thereby releasing the fixation of the fixed rod 62. Then, the adjusting motor 61 drives the rotating rod 631 to rotate away from the rotating gear ring 531, thereby releasing the fixation of the rotating gear ring 531. At this time, the rotating gear ring 531 releases the restriction on the brake gear 52, allowing the brake gear 52 to drive the rotating gear ring 531 to rotate. As a result, the first float 41 descends to the position of the second push block 72 under its own weight, so that the lidar component 1 can descend with the water level, effectively avoiding the lidar component 1 being too high above the water surface, which would prevent comprehensive scanning.

[0053] When the fixing rod 62 is inserted into the tooth groove of the rotating toothed ring 531, since the fixing rod 62 cannot be perfectly aligned with the tooth groove, when the fixing rod 62 is inserted, the tip of the fixing rod 62 slides along the tooth edge of the rotating toothed ring 531 toward the bottom of the tooth groove. At this time, the sliding shaft 633 slides along the sliding groove 632, thereby causing the fixing rod 62 to produce a certain displacement. When the top of the fixing rod 62 is inserted into the bottom of the tooth groove of the rotating toothed ring 531, the pressing plate 641 driven by the linear motor 642 presses the fixing rod 62 toward the rotating toothed ring 531, thereby fixing the fixing rod 62 to the rotating toothed ring 531. Furthermore, the limiting spring 635 can effectively prevent the fixing rod 62 from sliding when shaken, thus improving the stability of the sliding of the fixing rod 62.

[0054] The implementation principle of a lidar device for detecting ships according to an embodiment of this application is as follows: When the water level rises, the second float 42 floats up along the support rod 2. At this time, the second pusher 72 presses the steering assembly 6. The steering assembly 6 then causes the first float 41 to float upwards through the sliding locking assembly 5. The second float 42 then drives the first float 41 to rise, thereby causing the lidar assembly 1 to rise with the water level. When the water level drops, the second float 42 drops with the water level. At this time, the first float 41 remains in the first state. When the second float 42 drops to a certain extent, the first pusher 71 presses the steering assembly 6, causing the first float 41 to be in the second state. At this time, the first float 41 descends onto the second pusher 72 under its own weight, thereby making the lidar more adaptable to changes in water level and improving the ease of use of the lidar device.

[0055] 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 laser radar device for detecting a ship, characterized by: The utility model provides a kind of laser radar component (1) and the support pole (2) for being arranged in water, guide rod (3), first floating plate (41) and second floating plate (42) are slidably arranged on support pole (2), guide rod (3), support pole (2) all pass through second floating plate (42) and first floating plate (41) from bottom to top, laser radar component (1) is arranged on first floating plate (41), first floating plate (41) is arranged above second floating plate (42), second floating plate (42) floats on water surface, first floating plate (41) is connected between by sliding locking assembly (5) with support pole (2), first floating plate (41) is equipped with steering assembly (6) for adjusting sliding locking assembly (5) locking and unlocking, second floating plate (42) is equipped with connecting rod (7), connecting rod (7) passes through first floating plate (41) from bottom to top, first push block (71) and second push block (72) are fixedly arranged on connecting rod (7), and first floating plate (41) is located between first push block (71) and second push block (72);Sliding locking assembly (5) includes screw sleeve (51), brake gear (52) and one-way conversion piece (53), screw sleeve (51) is sleeved on support pole (2) and is screw transmission with support pole (2), screw sleeve (51) is rotationally arranged with first floating plate (41), brake gear (52) is coaxially fixedly arranged on screw sleeve (51);One-way conversion piece (53) includes rotating gear ring (531), support plate (532) and one-way plate (533), rotating gear ring (531) is rotationally arranged on first floating plate (41), brake gear (52) is coaxially arranged in rotating gear ring (531), support plate (532) is arranged on rotating gear ring (531), one-way plate (533) is rotationally arranged with support plate (532) on one end, the other end of one-way plate (533) is inserted into the gear slot of brake gear (52), and limiting block (534) for limiting brake gear (52) to push one-way plate (533) rotation is arranged on support plate (532);Steering assembly (6) includes adjusting motor (61), fixed rod (62), adjusting motor (61) moves fixed rod (62) by sliding piece (63);First push block (71) is equipped with first electric connector (81), and second push block (72) is equipped with second electric connector (82), and the top wall of first floating plate (41) is equipped with third electric connector (83) electrically connected with first electric connector (81), and the bottom wall of first floating plate (41) is equipped with fourth electric connector (84) electrically connected with second electric connector (82);First screw groove (21) and a plurality of ball bearings (512) are arranged on support pole (2), a plurality of ball bearings (512) are slidably arranged with first screw groove (21), second screw groove (511) for ball bearing (512) sliding is arranged on the inner side wall of screw sleeve (51), limiting block (513) for limiting ball bearing (512) to slide out of second screw groove (511) is arranged on screw sleeve (51). When the water level rises, the second floating plate (42) rises to push the second push block (72) to extrude the first floating plate (41), the fourth electric connector (84) on the second push block (72) is electrically connected with the second electric connector (82), at this time, the adjusting motor (61) drives the fixed rod (62) to insert into the tooth groove of the rotating gear ring (531) through the sliding piece (63), so that the rotating gear ring (531) is fixed, with the rising of the water level, the second push block (72) pushes the first floating plate (41) to move upwards, the first floating plate (41) drives the spiral sleeve (51) to move upwards along the support rod (2), the spiral sleeve (51) drives the brake gear (52) to rotate while moving upwards, the brake gear (52) drives the one-way plate (533) to rotate, the one-way plate (533) slides out of the tooth groove of the brake gear (52), so that the brake gear (52) can rotate, so that the second floating plate (42) can push the first floating plate (41) to rise, so that the first floating plate (41) and the laser radar assembly (1) above it rise with the rising of the water level; When the water level begins to drop, the second floating plate (42) drops, the first floating plate (41) has a tendency to drop with the second floating plate (42), at this time, the spiral sleeve (51) has a tendency to drive the brake gear (52) to rotate in the opposite direction, at this time, the one-way plate (533) is inserted into the tooth groove of the brake gear (52) under the pull of the extension spring (535), the one-way plate (533) is in contact with the limiting block (534), so that the brake gear (52) and the rotating gear ring (531) remain stationary, at this time, the first floating plate (41) still maintains the original height, so that the first floating plate (41) can be on the highest surface of the water surface under the condition that the second floating plate (42) is floated up and down by the water surface; When the water level drops by a large distance, the first electric connector (81) on the first push block (71) is electrically connected with the third electric connector (83) driven by the second floating plate (42), at this time, the adjusting motor (61) drives the fixed rod (62) to separate from the tooth groove of the rotating gear ring (531), so that the rotating gear ring (531) is unfixed, at this time, the rotating gear ring (531) removes the restriction on the brake gear (52), so that the brake gear (52) can drive the rotating gear ring (531) to rotate, so that the first floating plate (41) can drop to the position of the second push block (72) under the action of its own gravity, so that the laser radar assembly (1) can drop with the water level.

2. The lidar device for detecting a ship according to claim 1, characterized in that: The first floating plate (41) is rotationally provided with at least two rotating rods (631), each of the rotating rods (631) is arranged in parallel, the connecting line of the rotating centers of each of the rotating rods (631) is parallel to the fixed rod (62), the output shaft of the adjusting motor (61) is connected with the rotating center of the rotating rod (631), each of the rotating rods (631) is provided with a sliding groove (632), the fixed rod (62) is provided with a sliding shaft (633) for sliding in the sliding groove (632), and the first floating plate (41) is provided with a pressing piece (64) for limiting the fixed rod (62) from being separated from the rotating tooth ring (531).

3. The lidar device for detecting a ship according to claim 2, characterized in that: The pressing piece (64) comprises a linear motor (642) and a pressing plate (641), the pressing plate (641) is arranged on the output shaft of the linear motor (642), and the pressing plate (641) is used for pressing the fixed rod (62).

4. The lidar device for detecting a ship according to claim 2, characterized in that: The rotating rod (631) is provided with a limiting spring (635) for limiting the sliding shaft (633) from sliding to both ends of the sliding groove (632).

5. The lidar apparatus for detecting a ship according to claim 1, characterized by: The first floating plate (41) is rotationally provided with a rotating plate (412) for placing the laser radar assembly (1), and the first floating plate (41) is provided with a rotating motor (411) for driving the rotating plate (412) to rotate.

6. The lidar device for detecting a ship of claim 1, wherein: The first floating plate (41) is provided with a protective cover (413) for covering the laser radar assembly (1), the protective cover (413) is provided with a detection window (414), and the protective cover (413) is provided with a transparent plate (415) for plugging the detection window (414).

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