Laser fork truck fork tip collision detection device

Abstract

The utility model belongs to the field of logistics transportation accessory, specifically disclose a laser fork truck is with prong tip collision detection device, including the fixed seat for connecting the prong tooth of fork truck, be provided with the guide seat on the fixed seat, the guide piece is slidably connected in the guide seat, the both ends of guide piece are connected with guide connecting seat and inductive board respectively, the guide connecting seat is rotatably connected with the supporting roller for receiving the collision, inductive board moves with guide piece synchronously, the fixed seat still installs fixedly with the proximity switch for detecting the distance between inductive board and the collision reset device for driving guide piece reset, the supporting roller passes through the rotatory connection design and can effectively reduce the friction resistance produced when colliding, simultaneously converts horizontal impact force into rolling friction, avoids the damage to the fork truck structure caused by direct rigid collision, and transmits the collision position signal to the control system in real time, and then reminds the driver collision information, makes the warning and carries out passive protection in time.

Description

Technical Field

[0001] This utility model belongs to the field of logistics and transportation accessories, specifically relating to a laser forklift fork tip collision detection device. Background Technology

[0002] Forklifts, as core handling equipment in modern logistics and warehousing, directly impact cargo integrity and operational efficiency through their operational safety. The fork tips, being the components that directly contact goods and the work environment, are prone to accidental collisions in confined spaces or when goods are stacked. These collisions can range from minor surface damage to structural deformation of the equipment or operational accidents. Traditional fork tip collision detection relies primarily on operator visual observation. This manual monitoring method has significant limitations: continuous visual attention can lead to operator fatigue, causing collision risks to be overlooked; in complex working environments where visibility is obstructed, the timeliness and accuracy of manual detection decrease significantly; and manual monitoring cannot achieve quantitative recording and analysis of collision data, making it difficult to support equipment maintenance and operational optimization. Utility Model Content

[0003] To address the issue of insufficient reliability in existing forklift tip collision prevention technologies, a laser-based forklift tip collision detection device is proposed. This invention provides the following technical solution: A laser forklift fork tip collision detection device includes a fixed base for connecting the fork teeth of the forklift, a guide seat is provided on the fixed base, a guide member is slidably connected in the guide seat, a guide connecting seat and a sensing plate are respectively connected to both ends of the guide member, the sensing plate moves synchronously with the guide member, and a proximity switch for detecting the distance between the sensor and the sensing plate and a collision reset device for driving the guide member to reset are also installed and fixed on the fixed base.

[0004] Preferably, the spring is sleeved on the guide member and its two ends abut against the guide member and the guide seat, respectively.

[0005] Preferably, an obstacle avoidance sensor is installed on the mounting base.

[0006] Preferably, the obstacle avoidance sensor is a laser obstacle avoidance sensor.

[0007] Preferably, the guide members are symmetrically arranged on the fixed base, the obstacle avoidance sensor is disposed between the two guide members, and the idler roller is disposed on the front side of the fixed base.

[0008] Preferably, the guide members on both sides are connected to the same sensing plate.

[0009] Preferably, the guide includes a first guide shaft and a second guide shaft, which are coaxially joined. The diameter of the first guide shaft is larger than the diameter of the second guide shaft. The guide seat is provided with a first guide groove and a second guide groove. The first guide shaft is slidably connected to the first guide groove, and the second guide shaft is slidably connected to the second guide groove.

[0010] Preferably, a wire-binding fixing plate is installed on the fixing base.

[0011] Preferably, the wire binding fixing plate includes an integrally formed fixing part and a bending part. The fixing part is provided with a fixing hole, and the bending part is C-shaped. The wire binding fixing plate is located on the side of the fixing seat away from the idler roller.

[0012] Preferably, the fixing seat is equipped with a saddle-shaped cable tie positioning seat for securing the wire harness.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The idler roller effectively reduces the frictional resistance generated during a collision through a rotating connection design. At the same time, it converts the lateral impact force into rolling friction, avoiding damage to the forklift structure from direct rigid collisions. It also transmits the collision position signal to the control system in real time, reminding the driver to obtain collision information in time and implement passive protection measures. 2. The fixed base integrates an obstacle avoidance sensor and a photoelectric sensor to form a dual sensing mechanism. When the sensor fails due to an obstacle in front, the roller can still move along the telescopic guide component and trigger a proximity switch signal after contacting the obstacle, ensuring that it still has collision detection capability in the event of sensor failure. 3. The collision reset device adopts a spring structure, which is sleeved on the guide and abuts against the guide seat. Through the precise matching of compression stroke and reset force, it ensures that the guide is quickly and stably reset along the axis after being hit, reduces the detection signal delay, and ensures the continuous detection capability of the proximity switch in multiple collision scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation and use of this utility model; Figure 2 This is a schematic diagram of the installation of the obstacle avoidance sensor of this utility model; Figure 3 This is a schematic diagram of the installation of the photoelectric sensor of this utility model; Figure 4 This is a three-dimensional structural diagram of the guide component of this utility model; Figure 5 This is a schematic diagram of the guide groove of this utility model; In the attached diagram: 1. Fork tooth; 2. Fixed seat; 3. Guide component; 31. First guide shaft; 32. Second guide shaft; 4. Guide connecting seat; 5. Idler roller; 6. Guide seat; 61. Guide groove; 611. First guide groove; 612. Second guide groove; 7. Cable tie fixing plate; 71. Fixing part; 72. Bending part; 8. Proximity switch; 9. Obstacle avoidance sensor; 10. Saddle-shaped cable tie positioning seat; 11. Mounting plate; 12. Photoelectric sensor; 13. Spring; 14. Sensing plate. Detailed Implementation

[0015] The directional terms mentioned in the following embodiments, such as "up", "down", "left", and "right", are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the invention of this utility model.

[0016] like Figure 1-5 As shown, a laser forklift fork tip collision detection device includes a fixed base 2 for connecting the fork teeth 1 of the forklift. A guide seat 6 is provided on the fixed base 2, and a guide member 3 is slidably connected in the guide seat 6. Guide connecting seats 4 and a sensing plate 14 are respectively connected to both ends of the guide member 3. A roller 5 for receiving collisions is rotatably connected to the guide connecting seat 4. The sensing plate 14 moves synchronously with the guide member 3. A proximity switch 8 for detecting the distance between the roller 5 and the sensing plate 14 and a collision reset device for resetting the guide member 3 are also installed and fixed on the fixed base 2. The roller 5 can effectively reduce the frictional resistance generated during collision through the rotatable connection design, and at the same time convert the lateral impact force into rolling friction, avoiding direct rigid collisions that could damage the forklift structure. It also transmits the collision position signal to the control system in real time, thereby reminding the driver of the collision information, issuing timely warnings, and providing passive protection.

[0017] Furthermore, obstacle avoidance sensor 9 and photoelectric sensor 12 are installed on the fixed base 2. Specifically, obstacle avoidance sensor 9 is a laser obstacle avoidance sensor, such as the Blue Ocean LDS-E200 type, and photoelectric sensor 12 can be a Xike GTB6 type. When an obstacle appears in front, both photoelectric sensor 12 and laser obstacle avoidance sensor can perform dual sensing. Even if both are damaged, after the roller 5 contacts the obstacle, it can still move along the guide direction of the telescopic guide component, thereby triggering proximity switch 8. When material slides down from above, roller 5 can dissipate the impact force and trigger a signal at the same time, reducing impact damage to the device. When the laser forklift turns and encounters an obstacle, laser obstacle avoidance can be activated, and it can sense and stop within the set area.

[0018] Furthermore, the guide members 3 are symmetrically arranged on the fixed base 2, the obstacle avoidance sensor 9 is set between the two guide members 3, and the roller 5 is set on the front side of the fixed base 2, so that the force on the roller 5 is evenly distributed. After both ends are hit, they can drive the sensing plate 14 to move and trigger the proximity switch 8. Specifically, the proximity switch 8 can be a Xike IQE17 type proximity switch.

[0019] Furthermore, the collision reset device uses a spring 13, which is connected to the same sensing plate 14 on both sides of the guide member 3. The sensing plate 14 is fixed to the rear end of the guide member 3 and is electrically connected to the proximity switch 8. The spring 13 is sleeved on the guide member 3 and its two ends abut against the guide member 3 and the guide seat 6 respectively. This ensures that the guide member 3 can quickly and stably reset along the axis of the guide member 3 after being collided. The precise matching of its compression stroke and reset force can reduce the detection signal delay and ensure the reliability of continuous detection in multiple collision scenarios.

[0020] Furthermore, the guide member 3 includes a first guide shaft 31 and a second guide shaft 32, which are coaxially joined. The diameter of the first guide shaft 31 is larger than the diameter of the second guide shaft 32. The guide seat 6 is provided with a first guide groove 611 and a second guide groove 612. The first guide shaft 31 is slidably connected to the first guide groove 611, and the second guide shaft 32 is slidably connected to the second guide groove 612. The guide member 3 and the guide seat 6 form a double sliding fit, which can improve stability. When an obstacle collides, it can also play a guiding and force-dissipating role to avoid hard impact.

[0021] The upper side of the guide seat 6 is provided with a connection hole, and the front part of the guide seat 6 is connected to the mounting plate 11 through the connection hole and bolts. The photoelectric sensor 12 is mounted on the mounting plate 11.

[0022] Furthermore, the rear of the guide seat 6 is connected to a wire-binding fixing plate 7 via a thread. Specifically, the wire-binding fixing plate 7 includes an integrally formed fixing part 71 and a bending part 72. The fixing part 71 is provided with fixing holes, and the bending part 72 is C-shaped. The wire-binding fixing plate 7 is located on the side of the fixing seat 2 away from the idler roller 5. On this side, it constrains and standardizes the direction of the wire harness, preventing the connection cable between the detection device and the forklift body from shaking and wearing during movement. At the same time, it provides a standardized fixing point for electrical connection, reducing maintenance difficulty.

[0023] Furthermore, a saddle-shaped cable tie positioning seat 10 for securing the wire harness is installed on the fixing seat 2 to distribute the securing pressure. Its open design facilitates quick installation and removal of the wire harness, ensuring the stability of the wire harness while also taking into account the convenience of maintenance and reducing signal transmission failures caused by loose wire harnesses.

Claims

1. A laser forklift fork tip collision detection device characterized by, The device includes a fixed seat (2) for connecting the fork teeth (1) of a forklift, a guide seat (6) is provided on the fixed seat (2), a guide member (3) is slidably connected in the guide seat (6), a guide connecting seat (4) and a sensing plate (14) are respectively connected to both ends of the guide member (3), the sensing plate (14) moves synchronously with the guide member (3), a roller (5) for receiving collisions is rotatably connected on the guide connecting seat (4), and a proximity switch (8) for detecting the distance between the sensor plate (14) and a collision reset device for driving the guide member (3) to reset are also installed and fixed on the fixed seat (2).

2. The laser fork collision detection device for a fork lift truck according to claim 1, characterized by The collision reset device uses a spring (13), which is sleeved on the guide (3) and its two ends abut against the guide (3) and the guide seat (6) respectively.

3. The laser fork collision detection device for a fork lift truck according to claim 1, characterized by An obstacle avoidance sensor (9) is installed on the fixed base (2).

4. The laser fork collision detection device for a fork lift truck according to claim 3, characterized by The obstacle avoidance sensor (9) is a laser obstacle avoidance sensor.

5. The laser fork collision detection device for a fork lift truck according to claim 3, characterized by The guide members (3) are symmetrically arranged on the fixed base (2), the obstacle avoidance sensor (9) is set between the two guide members (3), and the roller (5) is set on the front side of the fixed base (2).

6. The laser fork collision detection device for a fork lift truck according to claim 5, characterized by The guide members (3) on both sides are connected to the same sensing plate (14).

7. The laser fork collision detection device for a fork lift truck according to claim 1, characterized by The guide member (3) includes a first guide shaft (31) and a second guide shaft (32), which are coaxially connected. The diameter of the first guide shaft (31) is larger than the diameter of the second guide shaft (32). The guide seat (6) is provided with a first guide groove (611) and a second guide groove (612). The first guide shaft (31) is slidably connected to the first guide groove (611), and the second guide shaft (32) is slidably connected to the second guide groove (612).

8. The laser fork truck fork tip collision detection device of claim 1, wherein, A wire-binding fixing plate (7) is installed on the fixing seat (2).

9. The laser fork collision detection device for a fork lift truck according to claim 8, characterized by The wire binding fixing plate (7) includes an integrally formed fixing part (71) and a bending part (72). The fixing part (71) is provided with a fixing hole, and the bending part (72) is C-shaped. The wire binding fixing plate (7) is located on the side of the fixing seat (2) away from the idler roller (5).

10. The laser fork collision detection device for a fork lift truck according to claim 1 or 9, characterized by The fixing seat (2) is equipped with a saddle-shaped cable tie positioning seat (10) for binding the wire harness.

Images