AGV three-side laser prevention structure

Abstract

The utility model relates to AGV laser navigation technical field, and disclose a kind of AGV three side laser protection structure, including device pedestal, the upper surface of device pedestal is connected with protective shell, the upper of protective shell is equipped with the protection assembly for to device protection, the inside of device pedestal is equipped with the adjusting assembly for adjusting;The protection assembly includes adjusting shell, the upper of adjusting shell is installed in protective shell, the inside of protective shell is equipped with installation cavity, the upper end of installation cavity inside is abutted with compression spring, the lower surface of installation cavity is abutted with connecting piece, the lower end of connecting piece is fixed with the adjusting plate of adjusting shell telescopic connection.This utility model can be pressed adjusting shell under the cooperation of compression spring, make internal thread pipe and screw contact, stepper motor drives screw rotation, and then will pull adjusting shell to move downward, protective shell is compressed tightly, so laser radar can be protected.

Description

Technical Field

[0001] This utility model relates to the field of AGV laser navigation technology, specifically an AGV three-sided laser anti-drug structure. Background Technology

[0002] The three-sided laser protection structure of AGVs (Automated Guided Vehicles) is an advanced safety design used to improve the safety and stability of AGVs in complex environments. Laser navigation is a commonly used navigation technology in AGVs. It uses a lidar system to emit laser beams and receive the reflected beams to perceive the surrounding environment and calculate distances, thereby constructing a 3D point cloud map of the environment. After the map is built, the AGV's control system uses this map information, combined with path planning algorithms, to automatically guide the AGV's movement.

[0003] In the prior art, such as the anti-collision AGV laser forklift disclosed in announcement number CN209442579U, there is a vehicle body and a fork arm assembly. The fork arm assembly is located on one side of the vehicle body, a control box is installed inside the vehicle body, a laser scanner is installed on the top of the vehicle body, and an ultrasonic radar detector electrically connected to the control box is installed on the other side of the vehicle body. The laser scanner is electrically connected to the control box. It also includes a split bracket and a top cover. The split bracket located between the laser scanner and the fork arm is installed on the top of the vehicle body and is arranged in a triangle with the laser scanner. It combines ultrasonic radar to achieve three-dimensional safety protection for AGVs, effectively reduce blind spots, and improve the safety and reliability of AGV operation.

[0004] Existing laser protection structures, combined with ultrasonic radar, achieve three-dimensional safety protection for AGVs, effectively reducing blind spots and improving the safety and reliability of AGV operation. However, most sensors are directly exposed to the outside, and are easily damaged when bumped or collided, leading to sensor failure and poor practicality. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that most of the sensors mentioned above or in the existing technology are directly exposed to the outside, they are easily damaged when bumped or collided, leading to sensor failure and poor practicality.

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

[0008] An AGV three-sided laser protection structure includes a device base, a protective shell connected to the upper surface of the device base, a protective component for protecting the device above the protective shell, and an adjustment component for adjustment inside the device base.

[0009] The protective assembly includes an adjusting shell mounted on top of the protective shell. The protective shell has an internal mounting cavity. A compression spring abuts against the upper end of the mounting cavity. A connector abuts against the lower surface of the mounting cavity. An adjusting plate that is telescopically connected to the adjusting shell is fixed to the lower end of the connector. The adjusting plate is fixedly connected to the protective shell.

[0010] As a further embodiment of this utility model: an internally threaded tube is fixed vertically to the inner wall of the adjusting shell, and a screw is connected to the internal thread of the internally threaded tube.

[0011] As a further improvement of this utility model: a stepper motor is fixed to the lower end of the screw, and the stepper motor is fixedly connected to the device base.

[0012] As a further improvement of this utility model: a sealing ring is fixed at the lower end of the protective shell, and a sealing groove formed on the device base is interference-connected below the sealing ring.

[0013] As a further improvement of this utility model: a fixing plate is fixed to the lower surface of the device base, and fixing bolts are installed inside the fixing plate.

[0014] As a further embodiment of this utility model: the adjustment component includes a lidar, and there are three lidars, all of which are mounted on the top of the device base, and a transmission rod is fixed to the lower surface of each of the three lidars.

[0015] As a further embodiment of this utility model: the outer surface of the transmission rod is fitted with a fixed bearing embedded in the device base, and the lower surface of the transmission rod is fixed with a driven slant wheel.

[0016] As a further improvement of this utility model: one side of the moving slant wheel is engaged with an active slant tooth, and one side of the active slant tooth is fixedly connected to a drive motor that is fixedly connected to the device base.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses fixing bolts on the fixing plate to fix the fixing plate, and tightening the fixing bolts can fix the fixing plate, thereby fixing the device base to the AGV vehicle. The sealing groove opened on the device base, in cooperation with the sealing ring, can play a sealing role.

[0019] 2. With the cooperation of the compression spring, this utility model can press the adjustment shell, so that the internal threaded tube and the screw come into contact. The stepper motor drives the screw to rotate, which in turn pulls the adjustment shell downward to press the protective shell, thus protecting the lidar.

[0020] 3. The three lidars of this utility model are located on the front, left and right sides of the device base, which can realize all-round monitoring of the surrounding environment. The laser sensors continuously emit laser beams and receive the reflected signals, and analyze these signals.

[0021] 4. This utility model can drive the transmission rod to rotate. The fixed bearing ensures the smoothness of the transmission rod's rotation, allowing the rotation of the transmission rod to drive the lidar to rotate. This facilitates the adjustment of the angle of a single lidar, improving its practicality. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a three-sided laser protection structure for an AGV;

[0023] Figure 2 This is a three-dimensional structural diagram of the base of a device in a three-sided laser protection structure for AGVs.

[0024] Figure 3 This is a schematic cross-sectional view of the base of a device in a three-sided laser protection structure for AGVs.

[0025] Figure 4 This is a three-dimensional structural diagram of a lidar in a three-sided laser protection structure for an AGV;

[0026] Figure 5 This is a schematic cross-sectional view of the adjustment shell in a three-sided laser protection structure of an AGV.

[0027] In the diagram: 1. Device base; 2. Protective shell; 3. Adjusting shell; 31. Mounting cavity; 32. Compression spring; 33. Connecting piece; 34. Adjusting plate; 35. Internally threaded pipe; 36. Screw; 37. Stepper motor; 4. Sealing ring; 5. Sealing groove; 6. Fixing plate; 7. Fixing bolt; 8. LiDAR; 81. Transmission rod; 82. Fixed bearing; 83. Driven helical gear; 84. Active helical gear; 85. Drive motor. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0031] Example 1

[0032] Please see Figure 1 - Figure 5 This is the first embodiment of the present utility model. This embodiment provides a three-sided laser protection structure for AGV, including a device base 1, a protective shell 2 connected to the upper surface of the device base 1, a protective component for protecting the device above the protective shell 2, and an adjustment component for adjustment inside the device base 1.

[0033] The protective assembly includes an adjusting shell 3, which is installed above the protective shell 2. The protective shell 2 has an installation cavity 31 inside. The upper end of the installation cavity 31 abuts against a compression spring 32. The lower surface of the installation cavity 31 abuts against a connector 33. The lower end of the connector 33 is fixed with an adjusting plate 34 that is telescopically connected to the adjusting shell 3. The adjusting plate 34 is fixedly connected to the protective shell 2.

[0034] Specifically, an internally threaded tube 35 is fixed vertically on the inner wall of the adjusting shell 3, and a screw 36 is connected to the internal thread of the internally threaded tube 35.

[0035] Furthermore, the connector 33 and the adjusting plate 34 can serve as guides and limiters to ensure the stability of the adjusting shell 3 during movement. This can protect the lidar 8 and facilitate effective protection for lidar 8 at different heights.

[0036] Specifically, a stepper motor 37 is fixed to the lower end of the screw 36, and the stepper motor 37 is fixedly connected to the device base 1.

[0037] Furthermore, the stepper motor 37 drives the screw 36 to rotate. The screw 36 is threadedly connected to the internal threaded tube 35, which in turn pulls the adjusting shell 3 downward to press the protective shell 2. The connecting piece 33 and the adjusting plate 34 can play a guiding and limiting role.

[0038] Specifically, a sealing ring 4 is fixed to the lower end of the protective shell 2, and a sealing groove 5 formed on the device base 1 is interference-connected below the sealing ring 4.

[0039] Furthermore, by placing the protective shell 2 through the sealing groove 5 opened on the device base 1, aligning the sealing ring 4 with the sealing groove 5, and then lowering it vertically, a sealing effect can be achieved.

[0040] In use, the device base 1 is placed in a suitable position and fixed to the AGV vehicle. The sealing ring 4 is aligned with the sealing groove 5 on the device base 1, and the protective shell 2 is lowered vertically, connecting the protective shell 2 to the device base 1. Through the mounting cavity 31 inside the adjusting shell 3, the adjusting shell 3 is pressed down with the cooperation of the compression spring 32, causing the internal threaded tube 35 and the screw 36 to contact. At this time, the stepper motor 37 drives the screw 36 to rotate, and the screw 36 and the internal threaded tube 35 are threadedly connected, which in turn pulls the adjusting shell 3 downwards, pressing the protective shell 2. The connecting piece 33 and the adjusting plate 34 act as guides and limiters, ensuring the stability of the adjusting shell 3 during movement. This provides protection for the lidar 8 and facilitates effective protection for lidar 8 at different heights.

[0041] In summary, the three-sided laser protection structure of this AGV can be easily assembled. The protective shell 2 and the adjusting shell 3 can protect the laser radar 8, thereby effectively reducing the damage to the laser radar 8 caused by impacts. It can also play a sealing role, reducing the possibility of external liquids entering the interior.

[0042] Example 2

[0043] Please see Figure 1 - Figure 5 This is the second embodiment of the present utility model.

[0044] Specifically, a fixing plate 6 is fixed to the lower surface of the device base 1, and fixing bolts 7 are installed inside the fixing plate 6.

[0045] Furthermore, the fixing plate 6 can be fixed by tightening the fixing bolts 7 provided on the fixing plate 6.

[0046] Specifically, the adjustment component includes a lidar 8, and there are three lidars 8. All three lidars 8 are installed above the device base 1. A transmission rod 81 is fixed on the lower surface of each of the three lidars 8. A fixed bearing 82 embedded in the device base 1 is sleeved on the outer surface of the transmission rod 81. A driven inclined wheel 83 is fixed on the lower surface of the transmission rod 81.

[0047] Furthermore, the fixed bearing 82 ensures the smooth rotation of the transmission rod 81, allowing the rotation of the transmission rod 81 to drive the lidar 8 to rotate.

[0048] Specifically, a drive helical gear 84 is engaged on one side of the driven helical gear 83, and a drive motor 85, which is fixedly connected to the device base 1, is fixed on one side of the drive helical gear 84.

[0049] Furthermore, the drive motor 85 drives the active helical gear 84 to mesh with the driven helical gear 83 to rotate, thereby driving the transmission rod 81 to rotate.

[0050] In use, the three laser radars 8 mounted on the device base 1, positioned on the front, left, and right sides of the base 1, enable omnidirectional monitoring of the surrounding environment. The laser sensors continuously emit laser beams and receive reflected signals. By analyzing these signals, the laser sensors can create a real-time 3D image of the AGV's surroundings. When the laser sensors detect an obstacle, the AGV's control system immediately analyzes and judges the situation. Based on the obstacle's position, distance, and the AGV's travel path, the control system determines what obstacle avoidance measures to take, such as deceleration, steering, or stopping. The drive motor 85 drives the active helical gear 84 to mesh with the driven helical wheel 83, which in turn drives the transmission rod 81 to rotate. The fixed bearing 82 ensures smooth rotation of the transmission rod 81, allowing the rotation of the transmission rod 81 to rotate the laser radars 8. This facilitates adjustment of the angle of each individual laser radar 8, improving practicality.

[0051] In summary, the three-sided laser protection structure of this AGV can be easily assembled. The protective shell 2 and the adjusting shell 3 can protect the laser radar 8, thereby effectively reducing the damage to the laser radar 8 caused by impacts. It can also play a sealing role, reducing the possibility of external liquids entering the interior. Furthermore, the device can adjust the angle of the internal laser radar 8, making it convenient to use.

[0052] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0054] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An AGV three-side laser protection structure, comprising a device base (1), characterized in that: The upper surface of the device base (1) is connected to a protective shell (2), and a protective component for protecting the device is provided above the protective shell (2). An adjustment component for adjustment is provided inside the device base (1). The protective assembly includes an adjusting shell (3), which is installed above the protective shell (2). The protective shell (2) has an installation cavity (31) inside. The upper end of the installation cavity (31) abuts against a compression spring (32). The lower surface of the installation cavity (31) abuts against a connector (33). The lower end of the connector (33) is fixed with an adjusting plate (34) that is telescopically connected to the adjusting shell (3). The adjusting plate (34) is fixedly connected to the protective shell (2).

2. The AGV three-sided laser protection structure according to claim 1, characterized in that: The inner wall of the adjusting shell (3) is fixed with an internally threaded tube (35) in the vertical direction, and the internal thread of the internally threaded tube (35) is connected to a screw (36).

3. The AGV three-sided laser protection structure according to claim 2, characterized in that: A stepper motor (37) is fixed to the lower end of the screw (36), and the stepper motor (37) is fixedly connected to the device base (1).

4. The AGV three-sided laser protection structure according to claim 1, characterized in that: The lower end of the protective shell (2) is fixed with a sealing ring (4), and a sealing groove (5) formed on the device base (1) is interference-connected below the sealing ring (4).

5. The AGV three-sided laser protection structure according to claim 4, characterized in that: A fixing plate (6) is fixed to the lower surface of the device base (1), and fixing bolts (7) are installed inside the fixing plate (6).

6. The AGV three-sided laser protection structure according to claim 5, characterized in that: The adjustment assembly includes a lidar (8), and there are three lidars (8). All three lidars (8) are installed above the device base (1), and a transmission rod (81) is fixed on the lower surface of each of the three lidars (8).

7. The AGV three-sided laser protection structure according to claim 6, characterized in that: The outer surface of the transmission rod (81) is fitted with a fixed bearing (82) embedded in the device base (1), and the lower surface of the transmission rod (81) is fixed with a driven swashplate (83).

8. The AGV three-sided laser protection structure according to claim 7, characterized in that: One side of the driven helical wheel (83) is engaged with an active helical gear (84), and one side of the active helical gear (84) is fixedly connected to a drive motor (85) that is fixedly connected to the device base (1).

Images