Collision prevention device for laser navigation forklift

Abstract

The collision prevention device for the laser navigation forklift comprises a right frame and two sets of front trusses, the two sets of front trusses are installed on the inner wall of the right frame, right linkage shafts are installed at the ends, close to the right frame, of the front trusses, and the front trusses are movably connected with the right frame through the right linkage shafts. A left frame is arranged on one side of the right frame, two sets of rear trusses are installed on the inner wall of the left frame, left linkage shafts are installed at the ends, close to the left frame, of the rear trusses, the rear trusses are movably connected with the left frame through the left linkage shafts, center shafts are installed at the center positions of the front trusses, and center shafts are installed at the center positions of the rear trusses. And the front truss is movably connected with the rear truss through the central shaft. According to the utility model, not only are convenient linkage elastic buffering of collision impact and convenient and flexible adjustment of the collision avoidance position realized, the adjustment of the collision buffering capacity and the collision avoidance protection of different positions are facilitated, but also the flexibility and the safety of the collision avoidance protection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of collision avoidance devices, in particular to a collision avoidance device for a laser navigation forklift. Background Art

[0002] Laser-guided unmanned forklifts are unmanned forklifts that use high-intensity laser beams for navigation and obstacle avoidance. They can drive autonomously in complex environments, effectively improving the efficiency of logistics and warehousing. Laser-guided unmanned forklifts obtain information about the surrounding environment through a laser radar system to ensure safe driving. The working environment of laser-guided forklifts is relatively complex. In order to avoid collisions and other situations during driving, a collision avoidance device for laser-guided forklifts is proposed.

[0003] For example, a collision avoidance device for an unmanned vehicle disclosed in the authorization announcement number CN219989143U includes an unmanned vehicle for patrol, solar panels are installed at both ends of the unmanned vehicle, an early warning mechanism is provided on the surrounding surface of the unmanned vehicle, and buffer mechanisms are provided on the front and rear ends of the unmanned vehicle;

[0004] Although it realizes the collision avoidance device of the unmanned vehicle, the two AI anti-collision devices in front and behind are driven by the support blocks to reciprocate on the inner wall of the slide as the unmanned vehicle travels, thereby enabling large-scale monitoring of the vehicle dynamics in front and behind the unmanned vehicle;

[0005] However, the problem that the existing collision avoidance device is not conducive to convenient linkage elastic buffering of collision impact and convenient and flexible adjustment of collision avoidance position when in use, is not conducive to adjusting the collision buffering amount and collision avoidance protection at different positions, affecting the flexibility and safety of collision avoidance protection. Utility Model Content

[0006] The purpose of the utility model is to provide a collision avoidance device for a laser-guided forklift, so as to solve the problem that the collision avoidance device proposed in the above-mentioned background technology is not convenient for convenient linkage elastic buffering of collision impact and convenient and flexible adjustment of the collision avoidance position, is not conducive to adjusting the collision buffering amount and performing collision avoidance protection at different positions, and affects the flexibility and safety of the collision avoidance protection.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a collision avoidance device for a laser navigation forklift, comprising a right frame and a front truss, two sets of front trusses are installed on the inner wall of the right frame, and the ends of the front trusses close to the right frame are all installed with right linkage shafts, and the front trusses are movably connected to the right frame through the right linkage shaft, a left frame is provided on one side of the right frame, two sets of rear trusses are installed on the inner wall of the left frame, and the ends of the rear trusses close to the left frame are all installed with left linkage shafts, and the rear trusses are movably connected to the left frame through the left linkage shaft, and a center shaft is installed at the center position of the front trusses , and the front truss is movably connected to the rear truss through a central axis, the rear truss is movably installed with a right movable wheel at one end close to the right frame, and the right movable wheel is slidably connected to the right frame, the front truss is movably installed with a left movable wheel at one end close to the collision avoidance plate, and the left movable wheel is slidably connected to the collision avoidance plate, sleeves are installed on the side walls of the right frame and the inside of the sleeves are movably installed with springs, two sets of bolts are installed on the top of the right frame, and the bolts are threadedly connected to the right frame, and the bolts extend to the inside of the sleeves and are connected to the springs, and two sets of hollow mounting frames are provided on the outside of the right frame.

[0008] Preferably, a slide groove is installed at the bottom end of each hollow mounting frame, and a motor box is provided inside each hollow mounting frame.

[0009] Preferably, auxiliary wheels are movably mounted on one side of the motor box, and running wheels are arranged on the other side of the motor box.

[0010] Preferably, a travel motor is installed inside the motor box, a drive shaft is installed at the output end of the travel motor, and the drive shaft is connected to the travel wheel.

[0011] Preferably, a pin is movably mounted on the bottom end of the motor box, and a bearing block is mounted on the bottom end of the pin.

[0012] Preferably, limiting shafts are installed on both sides of the bearing block, limiting wheels are sleeved on the surfaces of the limiting shafts, and the limiting wheels are movably connected to the limiting shafts.

[0013] Preferably, the limiting wheel is slidably connected to the sliding groove, and the bottom end of each bearing block is installed with a connecting rod.

[0014] Preferably, the surfaces of the connecting rods are all covered with connecting blocks, and the connecting blocks are respectively connected to the right frame.

[0015] Compared with the existing technology, the beneficial effects of the present invention are: the collision avoidance device not only realizes convenient linkage elastic buffering of collision impact and convenient and flexible adjustment of the collision avoidance position, facilitates the adjustment of the collision buffering amount and collision avoidance protection for different positions, but also improves the flexibility and safety of collision avoidance protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the hollow mounting frame of the utility model;

[0018] Figure 3 It is a side cross-sectional structural diagram of the right frame of the present utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the hollow mounting frame of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the bearing block of the present invention;

[0021] Figure 6 It is a front cross-sectional structural diagram of the motor box of the present utility model.

[0022] In the figure: 1. Hollow mounting frame; 2. Connecting block; 3. Right frame; 4. Collision avoidance plate; 5. Right movable wheel; 6. Spring; 7. Sleeve; 8. Bolt; 9. Rear truss; 10. Front truss; 11. Center shaft; 12. Left linkage shaft; 13. Right linkage shaft; 14. Left frame; 15. Left movable wheel; 16. Travel wheel; 17. Motor box; 18. Limiting wheel; 19. Connecting rod; 20. Load-bearing block; 21. Pin shaft; 22. Travel motor; 23. Limiting shaft; 24. Drive shaft; 25. Slide; 26. Auxiliary wheel. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6The utility model provides an embodiment: a collision avoidance device for a laser navigation forklift, comprising a right frame 3 and a front truss 10, two sets of front trusses 10 are installed on the inner wall of the right frame 3, and the ends of the front trusses 10 close to the right frame 3 are all installed with a right linkage shaft 13, and the front trusses 10 are movably connected to the right frame 3 through the right linkage shaft 13, a left frame 14 is provided on one side of the right frame 3, two sets of rear trusses 9 are installed on the inner wall of the left frame 14, and the ends of the rear trusses 9 close to the left frame 14 are all installed with a left linkage shaft 12, and the rear trusses 9 are movably connected to the left frame 14 through the left linkage shaft 12, a center shaft 11 is installed at the center position of the front trusses 10, and The front truss 10 is movably connected to the rear truss 9 through the central axis 11. The rear truss 9 is movably mounted with a right movable wheel 5 at one end close to the right frame 3, and the right movable wheel 5 is slidably connected to the right frame 3. The front truss 10 is movably mounted with a left movable wheel 15 at one end close to the collision avoidance plate 4, and the left movable wheel 15 is slidably connected to the collision avoidance plate 4. Sleeves 7 are installed on the side walls of the right frame 3 and the left frame 14, and springs 6 are movably installed inside the sleeves 7. Two sets of bolts 8 are installed on the top of the right frame 3, and the bolts 8 are threadedly connected to the right frame 3, and the bolts 8 extend to the inside of the sleeves 7 and are connected to the spring 6. Two sets of hollow mounting frames 1 are provided on the outside of the right frame 3;

[0025] First, install the hollow mounting frame 1 on the body of the laser navigation forklift, and connect the device to the controller and circuit of the forklift. When the forklift is hit by a collision, the collision object hits the collision avoidance plate 4 and drives the collision avoidance plate 4 to move. The collision avoidance plate 4 drives the left frame 14 to move, and the left frame 14 drives the rear truss 9 to rotate through the left linkage shaft 12. Under the support of the right frame 3, the rear truss 9 drives the front truss 10 to rotate with the right linkage shaft 13 as the axis through the central axis 11. The rear truss 9 drives the right movable wheel 5 to slide on the surface of the right frame 3, so that the right movable wheel 5 contacts the spring 6, wherein the spring 6 contracts inside the sleeve 7, and the spring 6 is driven by the spring 6. To provide elastic force in the opposite direction to the right movable wheel 5, to cushion the impact it receives, the front truss 10 drives the left movable wheel 15 to slide on the surface of the collision avoidance plate 4, and another set of springs 6 provides elastic force to the left movable wheel 15 to cushion the impact of the collision, so as to complete the cushioning of the collision impact force. When the cushioning amount of the spring 6 needs to be adjusted, the bolt 8 is screwed, and the bolt 8 drives the spring 6 to move, so that the spring 6 contracts. Under the mutual compression of the right movable wheel 5 and the bolt 8, the contraction stroke of the spring 6 is adjusted, so as to adjust the cushioning amount, thereby realizing convenient linkage elastic cushioning of the collision impact force and facilitating the adjustment of the collision cushioning amount;

[0026] The bottom end of the hollow mounting frame 1 is provided with a slide 25, and the interior of the hollow mounting frame 1 is provided with a motor box 17. Auxiliary wheels 26 are movably installed on one side of the motor box 17, and walking wheels 16 are provided on the other side of the motor box 17.

[0027] A travel motor 22 is installed inside the motor box 17. The travel motor 22 plays a role of power drive. The output end of the travel motor 22 is installed with a drive shaft 24, and the drive shaft 24 is connected to the travel wheel 16. The bottom end of the motor box 17 is movably installed with a pin 21, and the bottom end of the pin 21 is installed with a bearing block 20.

[0028] A limit shaft 23 is installed on both sides of the bearing block 20. The surface of the limit shaft 23 is fitted with a limit wheel 18, and the limit wheel 18 is movably connected to the limit shaft 23. The limit wheel 18 is slidably connected to the slide groove 25. The bottom end of the bearing block 20 is installed with a connecting rod 19. The surface of the connecting rod 19 is fitted with a connecting block 2, and the connecting block 2 is respectively connected to the right frame 3.

[0029] When the collision avoidance position needs to be adjusted, the travel motor 22 is turned on, and the travel motor 22 drives the drive shaft 24 to rotate, and the drive shaft 24 drives the travel wheel 16 to rotate. Under the active cooperation of the auxiliary wheel 26, the travel wheel 16 drives the motor box 17 to move inside the hollow mounting frame 1, and the motor box 17 drives the pin shaft 21 to move, and the pin shaft 21 drives the bearing block 20 to move, and the bearing block 20 drives the limiting wheel 18 to slide inside the slide groove 25 through the limiting shaft 23, and the limiting wheel 18 provides movable limiting support for the bearing block 20. The maximum turning radius of the travel wheel 16 and the auxiliary wheel 26 is less than the bending radius of the track, and the bearing block 20 drives the connecting rod 19 to move, and the connecting rod 19 drives the right frame 3, the rear truss 9, the front truss 10, the left frame 14 and the collision avoidance plate 4 to move, so as to flexibly move and adjust its collision avoidance position, thereby realizing convenient and flexible adjustment of the collision avoidance position, facilitating collision avoidance protection at different positions, and improving the flexibility and safety of collision avoidance protection.

[0030] Working principle: First, when the forklift is hit, the collision object hits the collision avoidance plate 4 and drives the collision avoidance plate 4 to move, and the collision avoidance plate 4 drives the left frame 14 to move, and the left frame 14 drives the rear truss 9 to rotate through the left linkage shaft 12, and the rear truss 9 drives the front truss 10 to rotate with the right linkage shaft 13 as the axis through the center shaft 11, and the rear truss 9 drives the right movable wheel 5 to slide on the surface of the right frame 3, so that the right movable wheel 5 contacts the spring 6, wherein the spring 6 contracts inside the sleeve 7, and the spring 6 provides the right movable wheel 5 with an elastic force in the opposite direction on one side to cushion the impact it receives, and the front truss 10 drives the left movable wheel 15 to slide on the surface of the collision avoidance plate 4, and another set of springs 6 provides elastic force to the left movable wheel 15 to complete the buffering of the collision impact force. When the buffering amount of the spring 6 needs to be adjusted, the bolt 8 is tightened, and the bolt 8 drives the spring 6 to move, so that the spring 6 contracts, and the right movable wheel 5 contacts the spring 6. Under the mutual extrusion with the bolt 8, the contraction stroke of the spring 6 is adjusted to adjust the buffering amount, and the driving shaft 24 is driven to rotate by the walking motor 22, and the driving shaft 24 drives the walking wheel 16 to rotate, and the walking wheel 16 drives the motor box 17 to move inside the hollow mounting frame 1, and the motor box 17 drives the pin shaft 21 to move, and the pin shaft 21 drives the bearing block 20 to move, and the bearing block 20 drives the limiting wheel 18 to slide inside the slide groove 25 through the limiting shaft 23, and the limiting wheel 18 provides active limiting support for the bearing block 20, wherein the maximum turning radius of the walking wheel 16 and the auxiliary wheel 26 is smaller than the bending radius of the track, and the bearing block 20 drives the connecting rod 19 to move, and the connecting rod 19 drives the right frame 3, the rear truss 9, the front truss 10, the left frame 14 and the collision avoidance plate 4 to move through the connecting block 2, so as to flexibly move and adjust their collision avoidance positions to complete the use of the collision avoidance device for the laser navigation forklift.

Claims

1. A collision avoidance device for a laser-guided forklift, comprising a right frame (3) and a front truss (10), characterized in that: Two groups of front trusses (10) are installed on the inner wall of the right frame (3), and the ends of the front trusses (10) close to the right frame (3) are all installed with right linkage shafts (13), and the front trusses (10) are movably connected to the right frame (3) through the right linkage shaft (13). A left frame (14) is provided on one side of the right frame (3), and two groups of rear trusses (9) are installed on the inner wall of the left frame (14), and the ends of the rear trusses (9) close to the left frame (14) are all installed with left linkage shafts (12), and the rear trusses (9) are movably connected to the left frame (14) through the left linkage shaft (12). A central shaft (11) is installed at the center position of the front trusses (10), and the front trusses (10) are movably connected to the rear trusses (9) through the central shaft (11). The rear truss (9) is movably mounted with a right movable wheel (5) at one end close to the right frame (3), and the right movable wheel (5) is slidably connected to the right frame (3). The front truss (10) is movably mounted with a left movable wheel (15) at one end close to the collision avoidance plate (4), and the left movable wheel (15) is slidably connected to the collision avoidance plate (4). Sleeves (7) are mounted on the side walls of the right frame (3) and the left frame (14), and springs (6) are movably mounted inside the sleeves (7). Two groups of bolts (8) are mounted on the top of the right frame (3), and the bolts (8) are threadedly connected to the right frame (3), and the bolts (8) extend to the inside of the sleeves (7) and are connected to the springs (6). Two groups of hollow mounting frames (1) are arranged outside the right frame (3).

2. A collision avoidance device for a laser-guided forklift according to claim 1, characterized in that: The bottom end of each hollow mounting frame (1) is provided with a slide groove (25), and the interior of each hollow mounting frame (1) is provided with a motor box (17).

3. The collision avoidance device for a laser-guided forklift according to claim 2, characterized in that: One side of the motor box (17) is movably mounted with an auxiliary wheel (26), and the other side of the motor box (17) is provided with a running wheel (16).

4. The collision avoidance device for a laser-guided forklift according to claim 2, characterized in that: A travel motor (22) is installed inside the motor box (17), and a drive shaft (24) is installed at the output end of the travel motor (22), and the drive shaft (24) is connected to the travel wheel (16).

5. The collision avoidance device for a laser-guided forklift according to claim 2, characterized in that: The bottom end of the motor box (17) is movably mounted with a pin shaft (21), and the bottom end of the pin shaft (21) is mounted with a bearing block (20).

6. The collision avoidance device for a laser-guided forklift according to claim 5, characterized in that: Limiting shafts (23) are installed on both sides of the bearing block (20), and limiting wheels (18) are mounted on the surfaces of the limiting shafts (23), and the limiting wheels (18) are movably connected to the limiting shafts (23).

7. The collision avoidance device for a laser-guided forklift according to claim 6, characterized in that: The limiting wheel (18) is slidably connected to the sliding groove (25), and the bottom end of each of the bearing blocks (20) is provided with a connecting rod (19).

8. The collision avoidance device for a laser-guided forklift according to claim 7, characterized in that: The surfaces of the connecting rods (19) are all fitted with connecting blocks (2), and the connecting blocks (2) are respectively connected to the right frame (3).

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