CN115649069B - Vehicle-mounted laser point cloud scanner - Google Patents

Abstract

The embodiment of the application provides a vehicle-mounted laser point cloud scanner, and relates to the field of laser point cloud scanners. The vehicle-mounted laser point cloud scanner comprises: the installation that laser point cloud scanner top set up is covered, be provided with flexible pipe on the surface of installation lid simultaneously, its flexible intraduct is provided with the telescopic link, and be provided with the protection casing that can protect laser point cloud scanner between the terminal opposite face of a pair of telescopic link, the end of telescopic link is provided with the connecting rod simultaneously, and the connecting rod runs through the protection casing, when laser point cloud scanner is using, the installation adsorbs behind the roof, through the protection casing that can overturn the protection, can be at the front formation one air wall of laser point cloud scanner, consequently, can form the protection to laser point cloud scanner in high-speed advancing.

Description

Vehicle Laser Point Cloud Scanner

technical field

This application relates to the technical field of laser point cloud scanners, in particular, to a vehicle-mounted laser point cloud scanner.

Background technique

Expressway marking is a typical element of expressway assets, and it is also an important basis for expressway alignment extraction and road modeling. As one of the most important detailed road elements, road markings are an important reference for traffic control, vehicle navigation and highway reconstruction and expansion projects. Therefore, when the markings on the surface of the expressway need to be extracted and obtained, it needs to be completed by a laser point cloud scanner Identify and acquire.

In the prior art, when the markings on the surface of the expressway need to be identified and acquired, the laser point cloud scanner is installed on the surface of the roof through the suction cup, and then the vehicle drives on the surface of the expressway to be identified and acquired. The scanner completes the identification and acquisition of the markings. As the vehicle is fast driving on the high-altitude highway surface, some flying insects in the highway are easily hit by the vehicle and then adhere to the surface. The laser point cloud scanning also installed on the roof of the vehicle When the scanner is moving at high speed, its flying insects will also hit the front of the recognition area, so it is necessary to provide a certain protective effect for the laser point cloud scanner when it is used.

Contents of the invention

This application aims to solve at least one of the technical problems existing in the prior art. For this reason, this application proposes a vehicle-mounted laser point cloud scanner. When the laser point cloud scanner is in use, after it is installed and adsorbed on the roof of the vehicle, a protective cover can be turned over to form a line on the front of the laser point cloud scanner. Air wall, so it can protect the laser point cloud scanner at high speed.

The vehicle-mounted laser point cloud scanner according to the embodiment of the present application includes a laser point cloud scanner that can be adsorbed on the roof, including:

The installation cover set above the laser point cloud scanner is equipped with a telescopic tube on the surface of the installation cover, and a telescopic telescopic rod is arranged inside the telescopic tube, and a pair of telescopic rods is provided between the opposite ends of the telescopic rod. Shield for point cloud scanner protection;

At the same time, the end of the telescopic rod is provided with a connecting rod, and the connecting rod runs through the protective cover.

Further, a first spring is fixedly arranged between the top end of the telescopic rod and the inside of the telescopic tube, an air inlet is provided on the surface of the protective cover, and an air exhaust port communicating with the opening of the air inlet is provided on the upper side of the protective cover , and the bottom surface of the protective cover is provided with a second suction cup.

Further, the inner wall of the opening edge of the bottom surface of the protective cover is provided with an elastic film, and the inner wall of the elastic film is sealed with a telescopic plate.

Further, a bottom tube is provided extending downward from the center of the bottom surface of the connecting rod, and a top rod is provided inside the bottom tube.

Further, a first magnetic block is fixedly installed on the top of the inner cavity of the bottom tube, and a second magnetic block that is mutually repulsive to the first magnetic block is fixedly installed on the top of the ejector rod.

Further, the lower part of the inner ring wall of the bottom pipe is provided with bayonet sockets, and elastic plates are provided extending outward on both sides of the upper end of the second magnetic block. Triangular blocks.

Further, the top of the second magnetic block penetrates downwards with a telescopic passage, and a pull rod is arranged inside the telescopic passage, and at the same time, a pull rope is fixedly installed on the top of the pull rod, and the two ends of the pull rope are respectively connected to the sides of the elastic plate. The walls are fixed.

Further, the end of the push rod is provided with a third magnetic block, and a magnetic block tube is provided downward at the center of the bottom surface of the telescopic plate, and a telescopic block is provided inside the magnetic block tube, and the upper end of the telescopic block is provided with a The fourth magnetic block is magnetically attracted to the third magnetic block.

Further, a suction hole is provided on one side of the bottom surface of the channel formed between the air inlet and the air exhaust port, and at the same time, a protrusion is extended upward on the side of the upper opening of the suction hole, and the inclined surface of the protrusion is in line with the windward direction. facing each other.

Further, a top plate is arranged below the laser point cloud scanner, a bottom plate is arranged under the top plate, a buffer assembly is arranged between the bottom plate and the top plate, and a first suction cup is arranged on the bottom surface of the bottom plate.

The beneficial effect of the present application is: after the laser point cloud scanner is adsorbed on the roof, the protective cover is pulled laterally, so that the second suction cup on the bottom surface of the protective cover can also be adsorbed on the roof, so that the air inlet can face the vehicle. At the windward part, since a channel with a certain arc slope is formed between the air outlet and the air inlet, when the vehicle is traveling on the expressway, the airflow of the vehicle can pass through the air inlet, and then be discharged from the air outlet, and then It can form an air wall in front of the laser point cloud scanner, so that when the laser point cloud scanner is in use, it can reduce the impact of small flying insects on the front of the laser point cloud scanner through the air wall, and at the same time, the telescopic plate is After the ejector rod is pushed, the protective cover is adsorbed on the roof, and the bottom surface of the protective cover is attached to the surface of the roof. After the telescopic block is stressed, it starts to move upward. Then, after the fourth magnetic block and the third magnetic block are magnetically attracted, Under the pulling of the magnetic force, the pull rod can be moved downwards. As the pull rod moves down, the pull rope on the top of the pull rod can pull the triangle blocks on both sides. After the triangle blocks are separated from the bayonet, the second The elastic rebound of the spring enables the expansion plate to move upwards, and after the expansion plate moves upwards, the pressure inside the protective cover becomes smaller, so that the protective cover can be adsorbed on the roof, which is convenient for the air outlet to form an air wall. The cloud scanner forms a certain protective effect. At the same time, when the vehicle is moving, when the airflow inside the channel is flowing, the airflow inside the protective cover can be sucked through the suction hole, which can continuously reduce the internal pressure of the protective cover, making the second The suction cup can absorb the roof for a long time, and when the protective cover rotates, because the top of the connecting rod is stuck into the arc groove, after the protective cover rotates, the push block is pushed through the connecting rod, thereby increasing the pressure inside the air chamber , and then the sealing film expands and fits on the surface of the connecting rod, thereby forming a moving sealing effect. Similarly, when the protective cover rotates in the opposite direction, the pressure inside the air chamber becomes smaller, thereby enabling the sealing film to retract, which is convenient The shield turns.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings that need to be used in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, so It should not be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings according to these drawings without creative work.

FIG. 1 is a schematic diagram of an overall three-dimensional structure of a vehicle-mounted laser point cloud scanner according to an embodiment of the present application;

Fig. 2 is a schematic view of the overall bottom structure according to the embodiment of the present application;

Fig. 3 is a schematic diagram of an overall exploded structure according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of a protective cover according to an embodiment of the present application;

Fig. 5 is a schematic diagram of the overall front plane structure according to an embodiment of the present application;

Fig. 6 is a schematic structural diagram of a sectional view along A-A according to an embodiment of the present application;

FIG. 7 is a schematic diagram of an enlarged structure at A in FIG. 6 according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an overall top view plan structure according to an embodiment of the present application;

Fig. 9 is a schematic structural diagram of a cross-sectional view along B-B according to an embodiment of the present application;

FIG. 10 is a schematic diagram of an enlarged structure at B in FIG. 9 according to an embodiment of the present application;

Fig. 11 is a schematic bottom view of a connecting rod according to an embodiment of the present application.

Icons: 1-bottom plate; 11-first suction cup; 12-buffer component; 2-top plate; 3-laser point cloud scanner; 31-clip component; 4-installation cover; ;6-telescopic rod; 61-connecting rod; 611-arc groove; 62-bottom pipe; 63-rod; 631-second magnetic block; Elastic plate; 636-triangular block; 637-third magnetic block; 64-bayonet; 65-first magnetic block; 7-protective cover; 71-second sucker; 72-elastic film; The second spring; 732-magnetic block tube; 733-telescopic block; 734-the fourth magnetic block; 74-air inlet; 741-bump; 742-suction hole; -air chamber; 762-sealing film; 763-pressurization tube; 764-push block; 765-right angle rod.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

In order to make the purpose, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the application. Obviously, the described embodiments It is a part of embodiment of this application, and is not all embodiment. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Accordingly, the following detailed description of the embodiments of the application, provided in the accompanying drawings, is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be directly connected or indirectly connected through an intermediary, it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The vehicle-mounted laser point cloud scanner according to the embodiment of the present application is described below with reference to the accompanying drawings.

As shown in Figures 1 to 4, the vehicle-mounted laser point cloud scanner according to the embodiment of the present application includes: a first suction cup 11 that can be adsorbed on the roof of the vehicle, and its first suction cups 11 are arranged in a triangular shape. The top of 11 is fixedly provided with a bottom plate 1, and a top plate 2 is arranged above the bottom plate 1, and a buffer assembly 12 is arranged between the bottom plate 1 and the top plate 2, and the buffer assembly 12 can play a buffering effect. At the same time, a laser point cloud scanner 3 is arranged on the edge of the upper end of the top plate 2, so after the laser point cloud scanner 3 is adsorbed on the roof by the first suction cup 11, the laser point cloud scanner can be activated by moving the vehicle. 3 Carry out identification scanning to expressway.

The identification scanning area in front of the laser point cloud scanner 3 can be covered with a protective cover 7, and at the same time, a mounting cover 4 is connected to the upper part of the laser point cloud scanner 3 through a buckle assembly 31, and the opposite side wall of the mounting cover 4 A rotatable telescopic tube 5 is arranged in parallel, and a telescopic rod 6 that can be moved telescopically is arranged inside the telescopic tube 5, and a first spring 51 is fixedly arranged between the top of the telescopic rod 6 and the inside of the telescopic tube 5, and the first spring 51 can elastically stretch the telescopic rod 6 . And be provided with and be fixedly provided with connecting rod 61 between the end opposite surface of telescoping rod 6, one end of connecting rod 61 penetrates protective cover 7 simultaneously, makes protective cover 7 can be covered in the place ahead of laser point cloud scanner 3, and then can It has a certain protective effect on the laser point cloud scanner 3.

As shown in Figures 2 and 4, the bottom surface of the protective cover 7 extends upwards to form a hollow structure, and an elastic film 72 is arranged on the inner wall of the opening edge of the bottom surface of the protective cover 7, and the inner wall of the elastic film 72 is sealed with a telescopic plate 73. And at the windward side of protective cover 7, be provided with air inlet 74, simultaneously at the upper end side of protective cover 7, offer the air outlet 75 that communicates with air inlet 74 openings, form a certain distance between air outlet 75 and air inlet 74. The passage of the arc slope, and the bottom surface of the protective cover 7 is provided with a second suction cup 71, so after the laser point cloud scanner 3 is adsorbed on the roof, the protective cover 7 is pulled laterally to make the second suction cup 71 on the bottom surface of the protective cover 7 It can also be adsorbed on the roof of the car, so that the air inlet 74 can face the windward part of the vehicle. Since the air outlet 75 and the air inlet 74 form a channel with a certain arc slope, when the vehicle is traveling on the expressway , the airflow of the vehicle can pass through the air inlet 74, and then be discharged from the air outlet 75, thereby forming an air wall in front of the laser point cloud scanner 3 where the airflow flows upward, so that the laser point cloud scanner 3 can be used when in use. , reduce the impact of small flying insects on the front of the laser point cloud scanner 3 through the air wall.

As shown in Figures 5-7, a bottom tube 62 extends downward from the center of the bottom surface of the connecting rod 61, and at the same time, a push rod 63 that can extend the telescopic movement inside the bottom tube 62 is provided, so that the push rod 63 can carry out telescopic movement, and the top of the inner cavity of the bottom tube 62 is fixedly provided with a first magnetic block 65, and at the same time, a second magnetic block 631 that is magnetically repulsive to the first magnetic block 65 is fixedly provided on the top of the push rod 63, so that the push rod After the 63 is retracted under force, the push rod 63 can be retracted by the mutually repulsive magnetic force of the first magnetic block 65 and the second magnetic block 631 . At the same time, a bayonet 64 is provided at the lower part of the inner ring wall of the bottom pipe 62, and the bayonet 64 has a closed-loop circular structure, and a deformable elastic plate 635 is provided on both sides of the upper end of the second magnetic block 631. The top of the elastic plate 635 is provided with a triangular block 636 whose end can be snapped into the bayonet socket 64. After the triangular block 636 is clipped into the bayonet socket 64, the push rod 63 can be prevented from moving upward by the triangular block 636. And at the top of the second magnetic block 631, a telescopic path 632 is provided downwards, the inside of the telescopic path 632 is provided with a pull rod 633, and simultaneously the top of the pull rod 633 is fixedly provided with a stay cord 634, and the two ends of the stay cord 634 are respectively connected to The side walls of the elastic plate 635 are fixedly connected, so after the pull rod 633 moves downward, the elastic plate 635 at both ends of the pull rope 634 can be moved inward at the same time through the stay rope 634 on the top of the pull rod 633, so that the triangular block 636 can be moved out of the card. The mouth 64 facilitates the movement of the push rod 63, and the two sides of the upper end of the telescopic plate 73 are respectively provided with second springs 731. When the protective cover 7 is connected to the front of the laser point cloud scanner 3, since the bottom tube 62 and the ejector rod 63 are arranged in parallel, the space depth inside the protective cover 7 can be changed under the elastic rebound of the second spring 731. Large, so it is convenient for the protective cover 7 to be connected to the front end of the laser point cloud scanner 3. At the same time, when the protective cover 7 is adsorbed on the roof, because the protective cover 7 needs to be turned over, and then the telescopic plate 73 is pushed by the push rod 63, the second Two suction cups 71 are adsorbed on the roof.

The end of the push rod 63 is provided with a third magnetic block 637, and a magnetic block tube 732 is arranged downward at the center of the bottom surface of the telescopic plate 73, and the inside of the magnetic block tube 732 is provided with a telescopic block 733, and the telescopic block 733 The upper end is provided with a fourth magnetic block 734 magnetically attracted to the third magnetic block 637. After the telescopic plate 73 is pushed by the push rod 63 and the protective cover 7 is adsorbed on the roof, the bottom surface of the protective cover 7 is attached to the roof. On the surface, after the telescopic block 733 is stressed, it starts to move upwards, and after the fourth magnetic block 734 and the third magnetic block 637 are magnetically attracted to each other, the pull rod 633 can be moved downward under the pull of the magnetic force. After 633 moves downwards, the stay cord 634 on the top of the pull rod 633 can pull the triangular blocks 636 on both sides. After the triangular blocks 636 break away from the inside of the bayonet socket 64, the elastic force of the second spring 731 rebounds, so that the telescopic plate 73 can Move upwards, and after the telescopic plate 73 moves upwards, the pressure inside the protective cover 7 becomes smaller, and then the protective cover 7 can be adsorbed on the roof, so that the air outlet 75 is convenient to form an air wall, and the laser point cloud scanner 3 is formed to a certain extent. protective effect.

One side of the channel bottom surface formed between the air inlet 74 and the air outlet 75 is provided with a suction hole 742, and at the same time, a side of the upper opening of the suction hole 742 is extended upwards to be provided with a protrusion 741, and the inclined surface of the protrusion 741 Opposite to the windward side, therefore when the vehicle is moving, when the airflow inside the channel is flowing, the airflow inside the protective cover 7 can be sucked through the suction hole 742, and then the internal pressure of the protective cover 7 can be continuously reduced, so that the second suction cup 71 can be permanently attached to the roof.

As shown in Figures 8-11, when the protective cover 7 is in use, when the internal airflow is sucked through the suction hole 742, since the connecting rod 61 penetrates the protective cover 7, the internal sealing effect is not good, and the surface of the connecting rod 61 Both sides are provided with arc-shaped grooves 611, and at the same time, a rotation hole 76 is penetrated on one side of the outer surface of the protective cover 7, and an air chamber 761 is opened upward on the inner wall of the rotation hole 76, and an air chamber 761 is provided at the opening of the air chamber 761. Inflatable sealing membrane 762, and the inner chamber wall of gas chamber 761 runs through and is provided with pressurized tube 763, and the inside of its pressurized tube 763 is provided with push block 764 that can move inside it, and the outer surface of push block 764 is The side extends to the inside of the arc-shaped groove 611 and is provided with a right-angle rod 765, and the top of the right-angle rod 765 is inserted into the inside of the arc-shaped groove 611. After the protective cover 7 needs to be removed from the front of the laser point cloud scanner 3, it rotates with the protective cover 7 At this time, since the top of the right-angle rod 765 is stuck into the arc groove 611, after the protective cover 7 rotates, the push block 764 is pushed by the right-angle rod 765, thereby increasing the pressure inside the air chamber 761, and then the sealing film 762 expands. Can fit on the surface of connecting rod 61, and then can form the effect of moving seal, similarly when protective cover 7 rotates reversely, the pressure inside its gas chamber 761 becomes smaller, and then makes sealing film 762 retractable, convenient protective cover 7 turn.

Specifically, the working principle of the vehicle-mounted laser point cloud scanner: Therefore, after the laser point cloud scanner 3 is adsorbed on the roof, the protective cover 7 is then pulled laterally, so that the second suction cup 71 on the bottom surface of the protective cover 7 can also be adsorbed on the vehicle. top, so that the air inlet 74 can face the windward part of the vehicle. Since the passage with a certain arc slope is formed between the air outlet 75 and the air inlet 74, when the vehicle travels on the expressway, the vehicle travels The air flow can pass through the air inlet 74, and then be discharged from the air outlet 75, thereby forming an air wall in front of the laser point cloud scanner 3 where the air flow flows upwards, so that the laser point cloud scanner 3 can be reduced by the air wall when in use. The little flying insect hits the front of the laser point cloud scanner 3.

After the telescopic plate 73 is pushed by the push rod 63, when the protective cover 7 is adsorbed on the roof, the bottom surface of the protective cover 7 is attached to the surface of the roof, because the telescopic block 733 begins to move upward after being stressed, and then the fourth magnetic block After 734 is magnetically attracted to the third magnetic block 637, under the pull of the magnetic force, the pull bar 633 can be moved downward. After the pull bar 633 moves downward, the pull rope 634 on the top of the pull bar 633 can pull the two sides The triangular block 636, after the triangular block 636 breaks away from the inside of the bayonet socket 64, rebounds through the elastic force of the second spring 731, so that the telescopic plate 73 can move upward, and after the telescopic plate 73 moves upward, the pressure inside the protective cover 7 changes. Small, so that the protective cover 7 can be adsorbed on the roof of the car, which is convenient for the air outlet 75 to form an air wall, and has a certain protective effect on the laser point cloud scanner 3. At the same time, when the vehicle is moving, the airflow inside the passage is flowing. That is, the airflow inside the protective cover 7 can be sucked through the suction hole 742 , and the internal pressure of the protective cover 7 can be continuously reduced, so that the second suction cup 71 can permanently absorb the roof of the vehicle.

After the protective cover 7 needs to be moved out from the front of the laser point cloud scanner 3, when the protective cover 7 rotates, since the top of the right-angled rod 765 is inserted into the arc-shaped groove 611, after the protective cover 7 rotates, the right-angled rod 765 Push the push block 764, and then increase the pressure inside the air chamber 761, and then the sealing film 762 expands and fits on the surface of the connecting rod 61, thereby forming a moving sealing effect. Similarly, when the protective cover 7 rotates in the opposite direction, The pressure inside the air chamber 761 becomes smaller, and then the sealing film 762 can be retracted to facilitate the rotation of the protective cover 7 .

The above are only examples of the present application, and are not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application. It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

The above is only the specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application, and should cover Within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (3)

1. Vehicle-mounted laser point cloud scanner, including laser point cloud scanner (3) that can adsorb in the roof, its characterized in that includes:

the laser point cloud scanner comprises a mounting cover (4) arranged above a laser point cloud scanner (3), a telescopic pipe (5) is arranged on the surface of the mounting cover (4), a telescopic rod (6) is arranged in the telescopic pipe (5), and a protective cover (7) capable of protecting the laser point cloud scanner (3) is arranged between opposite surfaces of the tail ends of a pair of telescopic rods (6);

meanwhile, the tail end of the telescopic rod (6) is provided with a connecting rod (61), and the connecting rod (61) penetrates through the protective cover (7);

a first spring (51) is fixedly arranged between the top end of the telescopic rod (6) and the interior of the telescopic pipe (5), an air inlet (74) is formed in the surface of the protective cover (7), an air outlet (75) communicated with the opening of the air inlet (74) is formed in one side of the upper end of the protective cover (7), and a second suction cup (71) is arranged on the bottom surface of the protective cover (7);

an elastic membrane (72) is arranged on the inner wall of the edge of the opening on the bottom surface of the protective cover (7), and a telescopic plate (73) is arranged on the inner wall of the elastic membrane (72) in a sealing manner;

a bottom pipe (62) extends downwards from the center of the bottom surface of the connecting rod (61), and a top rod (63) is arranged inside the bottom pipe (62);

a first magnetic block (65) is fixedly arranged at the top of the inner cavity of the bottom tube (62), and a second magnetic block (631) which has magnetic mutual repulsion with the first magnetic block (65) is fixedly arranged at the top end of the ejector rod (63);

a bayonet (64) is formed in the lower portion of the inner annular wall of the bottom tube (62), elastic plates (635) extend outwards from two sides of the upper end of the second magnetic block (631), and a triangular block (636) with one end capable of being clamped in the bayonet (64) is arranged at the top end of each elastic plate (635);

the top end of the second magnetic block (631) penetrates downwards to be provided with a telescopic channel (632), a pull rod (633) is arranged inside the telescopic channel (632), a pull rope (634) is fixedly arranged at the top end of the pull rod (633), and two ends of the pull rope (634) are fixedly connected with the side wall of the elastic plate (635) respectively;

the tail end of the ejector rod (63) is provided with a third magnetic block (637), a magnetic block pipe (732) is downwards arranged at the center of the bottom surface of the expansion plate (73), an expansion block (733) is arranged inside the magnetic block pipe (732), and the upper end of the expansion block (733) is provided with a fourth magnetic block (734) which is magnetically attracted with the third magnetic block (637).

2. The vehicle-mounted laser point cloud scanner of claim 1, wherein a suction hole (742) is formed in one side of the bottom surface of a channel formed between the air inlet (74) and the air outlet (75), and a protrusion (741) extends upwards from one side of an opening at the upper end of the suction hole (742), and an inclined surface of the protrusion (741) is opposite to a windward side.

3. The vehicle-mounted laser point cloud scanner according to claim 1, wherein a top plate (2) is arranged below the laser point cloud scanner (3), a bottom plate (1) is arranged below the top plate (2), a buffer component (12) is arranged between the bottom plate (1) and the top plate (2), and a first suction cup (11) is arranged on the bottom surface of the bottom plate (1).

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