Adjusting device, laser radar with same and terminal

By designing a regulating device for lidar, ensuring that the sensor detection surface is always level and adjustable, the problem of lidar failure in distance measurement when the vehicle is tilted is solved, and the reliability and accuracy of the system are improved.

CN222452109UActive Publication Date: 2025-02-11WENSHI ROBOT (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202421356991.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-13
Publication Date
2025-02-11
Estimated Expiration
2034-06-13

AI Technical Summary

Technical Problem

When the existing lidar is tilted, the scanning area changes lead to the distance measurement failure, affecting the vehicle's driving safety.

Method used

A adjustment device is designed, including a fixing plate, an adjustment plate and a connecting plate. Through the mating of movable connections and elastic parts, the detection surface of the external sensor is always level and adapted to complex environments through angle adjustment.

Benefits of technology

It realizes the accurate and stable operation of external sensors, improves the reliability and accuracy of the system, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an adjusting device, a laser radar with the same, and a terminal. The adjusting device comprises a fixing plate used for connecting an external sensor, an adjusting plate, and a connecting plate used for external connection. The fixed plate is movably connected with the adjusting plate, and an elastic piece is arranged between the fixed plate and the adjusting plate, so that the detection surface of the external sensor connected to the fixed plate is kept horizontal by adjusting the distance between the adjusting plate and the fixed plate and abutting the elastic piece between the fixed plate and the adjusting plate; and the connecting plate is movably connected with the adjusting plate, so that the angle of the external sensor connected to the fixing plate is adjusted by adjusting the relative angle between the connecting plate and the adjusting plate. Through the synergistic effect of the fixing plate, the adjusting plate and the connecting plate, it is ensured that the external sensor can be always kept parallel to the horizontal plane, the angle is adjusted to adapt to various complex working environments, the external sensor can work more accurately and stably, and the reliability and accuracy of the whole system are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of laser radar equipment, and in particular to an adjustment device and a laser radar and a terminal having the same. Background Art

[0002] LiDAR is a radar system that uses laser beams to detect target position, speed and other characteristic quantities. By emitting a laser beam to the target as a detection signal, and then receiving the signal reflected from the target (target echo), the received signal is compared with the transmitted signal, and after appropriate processing, relevant information about the target, such as distance, direction, altitude, speed and other parameters, can be obtained.

[0003] The existing laser radar is fixedly installed on the roof of the vehicle and uses the laser radar for distance measurement. When the vehicle body tilts, for example, when one or more tires of the vehicle are under-inflated or burst, the vehicle body will tilt. Since the laser radar is fixedly connected to the roof of the vehicle, the laser radar also tilts with the vehicle body. The scanning area of ​​the laser radar will change after tilting, resulting in distance measurement failure, further affecting the vehicle's driving and causing a high safety risk in vehicle driving. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an adjustment device and a laser radar and a terminal having the same, and the scheme is as follows:

[0005] In the first part, the utility model provides an adjustment device, including: a fixing plate for connecting an external sensor, an adjustment plate and a connecting plate for external connection;

[0006] The fixing plate is movably connected to the adjusting plate, and an elastic member is provided between the fixing plate and the adjusting plate, so that the detection surface of the external sensor connected to the fixing plate is kept horizontal by adjusting the distance between the adjusting plate and the fixing plate and the elastic member abutting between the fixing plate and the adjusting plate;

[0007] The connecting plate and the adjusting plate are movably connected to each other, so that the angle of the external sensor connected to the fixing plate can be adjusted by adjusting the relative angle between the connecting plate and the adjusting plate.

[0008] In a specific embodiment, at least two connecting columns are provided between the fixing plate and the adjusting plate;

[0009] At least one end of the connecting column is movably connected to one of the fixing plate and the adjusting plate, so as to enable the adjusting plate to switch between being toward the fixing plate or away from the fixing plate;

[0010] The elastic member is sleeved on the connecting column, and one end of the elastic member abuts against the fixing plate, and the other end of the elastic member abuts against the adjusting plate.

[0011] In a specific embodiment, the connecting column includes: a bolt and a nut;

[0012] The fixing plate and the adjusting plate are both provided with corresponding through holes;

[0013] One end of the bolt close to the nut passes through the through holes of the fixing plate and the adjusting plate and is threadedly connected with the nut;

[0014] The elastic member is sleeved on the bolt.

[0015] In a specific embodiment, the nut includes a locking nut; and the bolt includes a locking bolt.

[0016] In a specific embodiment, the elastic member includes a spring.

[0017] In a specific embodiment, the elastic member includes a rectangular spring.

[0018] In a specific embodiment, the fixed plate includes a top plate and two lower extension plates; two sides of the top plate are connected to each of the lower extension plates; the top plate and the lower extension plates form an installation space for an external sensor; and the lower extension plates are provided with an installation structure for connecting an external sensor;

[0019] The top plate is movably connected to the adjustment plate.

[0020] In a specific embodiment, a plurality of connecting holes are provided on one of the adjustment plate and the connecting plates, and connecting grooves corresponding to the connecting holes are provided on the other of the adjustment plate and the connecting plates, so that the relative angle between the connecting plate and the adjustment plate can be adjusted by correspondingly connecting different positions of the connecting grooves through the connecting holes.

[0021] In the second part, the utility model provides a laser radar, comprising the adjustment device described in the above technical solution.

[0022] Part three, the utility model provides a terminal, comprising the adjustment device or laser radar described in the above technical solution.

[0023] Beneficial effects: The utility model ensures that the external sensor can always remain parallel to the horizontal plane through the synergy between the fixing plate, the adjustment plate and the connecting plate, and adjusts the angle to adapt to various complex working environments, so that the external sensor can work more accurately and stably, improving the reliability and accuracy of the entire system. This adjustment device is not only exquisite in structure and powerful in function, but also easy to operate and maintain, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 2 This is a schematic diagram of the fixed plate structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the connecting plate structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the detection surface of the external sensor of the utility model.

[0029] The figure numbers are as follows: 1-fixed plate; 11-top plate; 12-lower extension plate; 2-adjusting plate; 3-connecting plate; 4-elastic member; 5-external sensor; 6-connecting column; 61-bolt; 62-nut; 7-through hole; 8-installation structure; 9-connecting hole; 10-connecting groove; a-detection surface; b-horizontal plane. DETAILED DESCRIPTION

[0030] The concept, specific structure and technical effects of the present invention will be clearly and completely described below in combination with the embodiments and drawings to fully understand the purpose, features and effects of the present invention.

[0031] In the following, various embodiments of the present invention will be described more fully. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present invention.

[0032] Hereinafter, the terms "include" or "may include" used in various embodiments of the present invention indicate the presence of disclosed functions, operations or elements, and do not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the present invention, the terms "include", "have" and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing.

[0033] In various embodiments of the present invention, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0034] The expressions (such as "first", "second", etc.) used in the various embodiments of the present invention may modify the various components in the various embodiments, but may not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present invention, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0035] It should be noted that in the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, those skilled in the art need to understand that the terms indicating orientation or positional relationship herein are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] The terms used in the various embodiments of the present invention are only used for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present invention. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as the meanings commonly understood by ordinary technicians in the field of the various embodiments of the present invention. The terms (such as the terms defined in the dictionary used in general) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the present invention.

[0038] Embodiment 1

[0039] This embodiment ensures that the external sensor can always remain parallel to the horizontal plane through the synergy between the fixing plate, the adjustment plate and the connecting plate, and adjusts the angle to adapt to various complex working environments, so that the external sensor can work more accurately and stably, thereby improving the reliability and accuracy of the entire system. This adjustment device is not only exquisite in structure and powerful in function, but also easy to operate and maintain, and reduces costs.

[0040] An adjusting device, such as Figure 1 As shown, it includes: a fixing plate 1 for connecting an external sensor 5, an adjustment plate 2 and a connecting plate 3 for external connection;

[0041] The fixed plate 1 and the adjusting plate 2 are movably connected, and an elastic member 4 is provided between the fixed plate 1 and the adjusting plate 2, so that the detection surface a of the external sensor 5 connected to the fixed plate 1 is kept horizontal by adjusting the distance between the adjusting plate 2 and the fixed plate 1 and the elastic member 4 abutting between the fixed plate 1 and the adjusting plate 2;

[0042] The connecting plate 3 and the adjusting plate 2 are movably connected to each other, so that the angle of the external sensor 5 connected to the fixing plate 1 can be adjusted by adjusting the relative angle between the connecting plate 3 and the adjusting plate 2 .

[0043] This embodiment provides an adjustment device to ensure that the external sensor can work accurately and stably. The device mainly includes three core parts: a fixing plate 1, an adjustment plate 2, and a connecting plate 3. These parts work together to ensure that the detection surface a of the external sensor 5 can always remain horizontal and can be adjusted to meet various working requirements.

[0044] The fixed plate 1 is the basic part of the device, which is used to firmly connect the external sensor 5. This not only ensures the stability of the sensor, but also provides reliable support for it. The adjustment plate 2 and the fixed plate 1 are movably connected through a precise mechanical structure. This connection method allows the adjustment plate 2 to move flexibly relative to the fixed plate 1. Furthermore, an elastic member 4 is also provided between the two. The function of the elastic member 4 is to provide continuous elastic force to ensure that a certain distance is always maintained between the adjustment plate 2 and the fixed plate 1. When the external environment changes (such as vibration or tilt), the elastic member 4 can offset these changes through its elastic deformation, thereby ensuring that the detection surface a of the external sensor 5 connected to the fixed plate 1 always maintains a horizontal state.

[0045] The connection plate 3 is also movably connected to the adjustment plate 2. This design enables the connection plate 3 to be adjusted in angle relative to the adjustment plate 2. The user can adjust the angle of the connection plate 3 to adjust the overall angle of the external sensor 5 connected to the fixed plate 1, so as to change the detection direction of the sensor or adapt to different working environments.

[0046] This adjustment device is not only exquisite in structure and powerful in function, but also easy to operate and maintain. The synergy between the fixing plate, the adjustment plate and the connecting plate ensures that the external sensor can always remain parallel to the horizontal plane b. Figure 4 As shown, the angle can be adjusted to adapt to various complex working environments. This enables the external sensor to work more accurately and stably, improving the reliability and accuracy of the entire system.

[0047] In a specific embodiment, at least two connecting columns 6 are provided between the fixed plate 1 and the adjusting plate 2;

[0048] At least one end of the connecting column 6 is movably connected to one of the fixing plate 1 and the adjusting plate 2, so as to enable the adjusting plate 2 to switch between being toward the fixing plate 1 or away from the fixing plate 1;

[0049] The elastic member 4 is sleeved on the connecting column 6 , and one end of the elastic member 4 abuts against the fixing plate 1 , and the other end of the elastic member 4 abuts against the adjusting plate 2 .

[0050] In this embodiment, in order to more accurately control the distance between the fixed plate 1 and the adjusting plate 2 and ensure the stabilization of the elastic member, a connection structure is specially designed. The structure includes at least two connection columns 6 as a connection bridge between the fixed plate 1 and the adjusting plate 2.

[0051] The design of the connecting column 6 ensures that the adjustment plate 2 can be displaced and adjusted relative to the fixed plate 1. Specifically, at least one end of the connecting column 6 is connected to the fixed plate 1 or the adjustment plate 2 in a movable manner, which allows the adjustment plate 2 to move toward or away from the fixed plate 1 when necessary. This switching mechanism ensures that the adjustment plate 2 can respond quickly and stably when it is subjected to external force or when the angle of the detection surface a needs to be adjusted. In order to achieve automatic adjustment and stable maintenance of the distance between the adjustment plate 2 and the fixed plate 1, the elastic member 4 is sleeved on the connecting column 6. The elastic member 4 is usually made of a spring or other elastic material, with one end tightly abutting against the fixed plate 1 and the other end tightly abutting against the adjustment plate 2. When the adjustment plate 2 is subjected to external force, the elastic member 4 can use its elastic characteristics to generate corresponding elastic force, thereby balancing or offsetting such external force, ensuring that the distance between the adjustment plate 2 and the fixed plate 1 remains stable.

[0052] In a specific embodiment, the connecting column 6 includes: a bolt 61 and a nut 62;

[0053] The fixing plate 1 and the adjusting plate 2 are both provided with corresponding through holes 7;

[0054] One end of the bolt 61 close to the nut 62 passes through the through holes 7 of the fixing plate 1 and the adjusting plate 2 and is threadedly connected with the nut 62;

[0055] The elastic member 4 is sleeved on the bolt 61 .

[0056] In this embodiment, the connecting column 6 is composed of two parts: a bolt 61 and a nut 62. This design not only ensures the stability and reliability of the connecting column 6, but also makes the adjustment process more convenient and flexible.

[0057] The fixing plate 1 and the adjusting plate 2 are pre-designed with corresponding through holes 7 to ensure that the bolt 61 can smoothly pass through and connect the fixing plate 1 and the adjusting plate 2. After the end of the bolt 61 close to the nut 62 passes through the two through holes 7, it is threadedly connected with the nut 62, so that the fixing plate 1 and the adjusting plate 2 are firmly connected together. On the bolt 61, an elastic member 4 is also sleeved. The elastic member 4 is usually made of a highly elastic material, such as spring steel or rubber, to ensure that it can generate sufficient elastic force when subjected to external force. When the bolt 61 passes through the through hole 7 and is tightened with the nut 62, the elastic member 4 is compressed and tightly abutted between the fixing plate 1 and the adjusting plate 2. In this way, when the adjusting plate 2 is subjected to external force or needs to be adjusted in position, the elastic member 4 can quickly generate corresponding elastic force to balance or offset such external force, thereby keeping the spacing between the adjusting plate 2 and the fixing plate 1 stable.

[0058] This design makes the entire adjustment device not only highly stable, but also adaptable to various complex working environments. By adjusting the position of the nut 62 on the bolt 61, the distance between the adjustment plate 2 and the fixed plate 1 can be easily adjusted, thereby achieving precise adjustment of the angle of the detection surface a of the external sensor 5. This adjustment method is convenient and fast, greatly improving work efficiency.

[0059] In a specific embodiment, the nut 62 includes a locking nut 62 ; and the bolt 61 includes a locking bolt 61 .

[0060] In this embodiment, the nut 62 is specifically selected as a locking nut 62 , and the bolt 61 is selected as a locking bolt 61 .

[0061] The design of the anti-loosening nut 62 takes into account the vibration and impact that may occur in actual applications, which may cause the nut to loosen, thereby affecting the stability of the entire adjustment device. By selecting the anti-loosening nut 62, the nut can be effectively prevented from loosening when subjected to vibration or impact, so that the adjustment device can maintain stable performance in various complex working environments.

[0062] Meanwhile, the bolt 61 uses a locking bolt 61. The locking bolt 61 has a locking function added to the ordinary bolt. Its working principle is to apply a certain pre-tightening force on the bolt to generate friction between the bolt and the nut, thereby preventing the bolt from loosening, which not only increases the reliability of the connection, but also improves the overall stability of the adjustment device.

[0063] In a specific embodiment, the elastic member 4 includes a spring. As a common elastic element, the spring has excellent elasticity and resilience, can be deformed under the action of external force, and quickly return to its original state after the external force disappears. In this embodiment, the spring is sleeved on the bolt 61, one end is tightly abutted on the fixed plate 1, and the other end is tightly abutted on the adjustment plate 2. When the adjustment plate 2 is subjected to external force or needs to adjust its position, the spring can quickly generate corresponding elastic force to balance or offset such external force, thereby maintaining the spacing between the adjustment plate 2 and the fixed plate 1 stable. The selection of the spring makes the entire adjustment device more flexible and adaptable. Since the elastic force of the spring can be adjusted as needed, the appropriate spring type and specification can be selected according to the specific requirements of the external sensor 5 and the actual situation of the working environment to ensure that the adjustment device can meet various complex measurement requirements.

[0064] In addition, as a mature elastic element, the spring has a long service life and stable performance. Under normal use conditions, the spring can maintain its elasticity and resilience unchanged, thus ensuring the long-term stable operation of the adjustment device. At the same time, the maintenance and replacement of the spring are relatively simple and convenient, reducing the cost of use and the difficulty of maintenance.

[0065] In a specific embodiment, the elastic member 4 includes a rectangular spring. The rectangular spring, also called a flat spring or a leaf spring, is an elastic element widely used in various mechanical and electronic equipment. The rectangular spring has unique mechanical properties and advantages. First, the rectangular spring has a large load-bearing capacity and deformation, and can produce sufficient deformation under a large external force, and then generate corresponding elastic force. This characteristic enables the adjustment device to maintain stable performance when facing external interferences of different sizes. Secondly, the stiffness of the rectangular spring can be adjusted as needed. By changing the material, size, cross-sectional shape and other factors of the spring, its stiffness value can be accurately controlled to meet the requirements of different application scenarios. In the adjustment device, a suitable rectangular spring can be selected according to the specific needs of the external sensor 5 and the actual working environment to ensure that the adjustment device can meet various complex measurement requirements.

[0066] In a specific embodiment, as shown in the attached Figure 2 As shown, the fixed plate 1 includes a top plate 11 and two lower extension plates 12; both sides of the top plate 11 are connected to a lower extension plate 12; the top plate 11 and the lower extension plates 12 form an installation space for the external sensor 5; the lower extension plates 12 are provided with an installation structure 8 for connecting the external sensor 5;

[0067] The top plate 11 and the adjusting plate 2 are movably connected.

[0068] In this embodiment, the fixing plate 1 is mainly composed of a top plate 11 and two lower extension plates 12. The top plate 11 is the main part of the fixing plate 1, and a lower extension plate 12 is connected to each of its two sides. The two lower extension plates 12 not only enhance the overall stability of the fixing plate 1, but also provide additional installation and support functions for it. The connection between the top plate 11 and the lower extension plates 12 adopts a sturdy and reliable structural design to ensure that it will not loosen or deform during long-term use.

[0069] The top plate 11 and the lower extension plate 12 together form a space for installing the external sensor 5. This space not only provides sufficient installation positions for the external sensor 5, but also ensures that the sensor can be stably installed and fixed on the fixed plate 1 through reasonable layout and size design. On the lower extension plate 12, a mounting structure 8 for connecting the external sensor 5 is specially provided. This mounting structure 8 can be a threaded hole, a slot or other fixing method suitable for sensor installation. Through the mounting structure 8, the external sensor 5 can be firmly connected to the fixed plate 1, while ensuring that the connection between the sensor and the fixed plate 1 is firm and reliable.

[0070] Furthermore, a movable connection is adopted between the top plate 11 and the adjustment plate 2, so that the adjustment plate 2 can be moved and adjusted to a certain extent relative to the fixed plate 1. At the same time, due to the presence of the elastic member 4, this movement and adjustment process can be kept stable and smooth. The design of the entire fixed plate 1 not only takes into account the stability of the structure and the integrity of the function, but also fully considers the installation and adjustment requirements of the external sensor 5. This design makes the adjustment device more flexible, reliable and easy to operate in practical applications.

[0071] In a specific embodiment, as shown in the attached Figure 3 As shown, a plurality of connecting holes 9 are provided on one of the adjusting plate 2 and the connecting plate 3, and connecting grooves 10 corresponding to the connecting holes 9 are provided on the other one of the adjusting plate 2 and the connecting plate 3, so that the relative angle between the connecting plate 3 and the adjusting plate 2 can be adjusted by connecting the connecting holes 9 to different positions of the connecting grooves 10.

[0072] In this embodiment, a plurality of connection holes 9 are provided on one of the adjustment plate 2 and the connection plate 3, and these connection holes 9 are evenly distributed in a certain arrangement to meet different angle adjustment requirements. At the same time, a connection groove 10 matching the connection hole 9 is correspondingly provided on the other of the adjustment plate 2 and the connection plate 3. By selecting different combinations of connection holes 9 and connection grooves 10, accurate angle adjustment of the connection plate 3 relative to the adjustment plate 2 can be achieved. This design method of achieving angle adjustment through connection holes 9 and connection grooves 10 is not only simple and convenient to operate, but also has high adjustment accuracy and stability. This enables the adjustment device to quickly and accurately adjust the relative angle between the connection plate 3 and the adjustment plate 2 according to different working environments and measurement requirements.

[0073] Embodiment 2

[0074] This embodiment provides a laser radar, including the adjustment device mentioned in Example 1.

[0075] Embodiment 3

[0076] This embodiment provides a terminal, comprising the adjustment device mentioned in Embodiment 1 or the laser radar mentioned in Embodiment 2.

[0077] The utility model ensures that the external sensor can always remain parallel to the horizontal plane through the synergy between the fixing plate, the adjusting plate and the connecting plate, and adjusts the angle to adapt to various complex working environments, so that the external sensor can work more accurately and stably, thereby improving the reliability and accuracy of the entire system. This adjustment device is not only exquisite in structure and powerful in function, but also easy to operate and maintain, and reduces costs.

[0078] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A regulating device, characterized in that: include: A fixing plate and an adjustment plate for connecting an external sensor and a connecting plate for external connection; The fixing plate is movably connected to the adjusting plate, and an elastic member is provided between the fixing plate and the adjusting plate, so that the detection surface of the external sensor connected to the fixing plate is kept horizontal by adjusting the distance between the adjusting plate and the fixing plate and the elastic member abutting between the fixing plate and the adjusting plate; The connecting plate and the adjusting plate are movably connected to each other, so that the angle of the external sensor connected to the fixing plate can be adjusted by adjusting the relative angle between the connecting plate and the adjusting plate.

2. The adjusting device according to claim 1, characterized in that: At least two connecting columns are provided between the fixing plate and the adjusting plate; At least one end of the connecting column is movably connected to one of the fixing plate and the adjusting plate, so as to enable the adjusting plate to switch between being toward the fixing plate or away from the fixing plate; The elastic member is sleeved on the connecting column, and one end of the elastic member abuts against the fixing plate, and the other end of the elastic member abuts against the adjusting plate.

3. An adjustment device according to claim 2, characterized in that: The connecting column comprises: a bolt and a nut; The fixing plate and the adjusting plate are both provided with corresponding through holes; One end of the bolt close to the nut passes through the through holes of the fixing plate and the adjusting plate and is threadedly connected with the nut; The elastic member is sleeved on the bolt.

4. A regulating device according to claim 3, characterized in that: The nut comprises a locking nut; and the bolt comprises a locking bolt.

5. An adjusting device according to any one of claims 1 to 3, characterized in that: The elastic member includes a spring.

6. An adjusting device according to any one of claims 1 to 3, characterized in that: The elastic member includes a rectangular spring.

7. The adjusting device according to claim 1, characterized in that: The fixed plate includes a top plate and two lower extension plates; two sides of the top plate are connected to each of the lower extension plates; the top plate and the lower extension plates form an installation space for an external sensor; the lower extension plates are provided with an installation structure for connecting an external sensor; The top plate is movably connected to the adjustment plate.

8. The adjusting device according to claim 1, characterized in that: A plurality of connecting holes are provided on one of the adjusting plate and the connecting plate, and connecting grooves corresponding to the connecting holes are provided on the other of the adjusting plate and the connecting plate, so that the relative angle between the connecting plate and the adjusting plate can be adjusted by correspondingly connecting different positions of the connecting grooves through the connecting holes.

9. A laser radar, characterized in that: The invention comprises the regulating device according to any one of claims 1 to 8.

10. A terminal, characterized in that: It comprises the adjustment device according to any one of claims 1 to 8 or the laser radar according to claim 9.