Forklift truck anti-collision device

By installing anti-collision sensors and limit switches on forklifts, the problem of collisions caused by obstructed vision in front of the forklift forks is solved, enabling safe forklift transport and stable stacking of goods.

CN224325114UActive Publication Date: 2026-06-05GUANGDONG ONEN NEW-RESOURCE EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ONEN NEW-RESOURCE EQUIP CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

When the forklift's forks obstruct the driver's view, the driver cannot observe the situation ahead, which may lead to a collision.

Method used

The anti-collision sensor detects and measures the distance to objects within 0-5 meters in front of the forks. An electrical signal is sent through the proximity sensor switch to trigger emergency braking. The anti-collision sensor housing is made of rubber to buffer the impact force, and the limit switch controls the vehicle to stop.

Benefits of technology

Effectively avoids continuous damage when a forklift collides with obstacles in front, ensures safe transfer of goods, and prevents goods from tipping over and personal injury.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a forklift technical field discloses a forklift anti -collision device, including the vehicle body, the vehicle body left end is provided with two cargo fork, the cargo fork left end all is provided with the approach inductive switch, the cargo fork left end all is fixedly connected with two springs, the spring left end is fixedly connected with the anti -collision inductor, the cargo fork top is provided with the tray, the vehicle body left end is provided with two limit switches, the vehicle body left end corresponding limit switch upper side all hinge connection has the anti -collision board. In the utility model, the anti -collision inductor can induct the object inside 0 5m range before the cargo fork and carry out ranging, and the driver is reminded, when the vehicle body still collides to the front shielding object at a certain speed because of the unexpected situation, the anti -collision inductor will touch the approach inductive switch installed in the cargo fork, and the control system of vehicle body is sent to the electric signal from the approach inductive switch, and emergency brake is carried out immediately, avoids the forklift to continue to go on to the collision body and causes the harm continuously.
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Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a forklift anti-collision device. Background Technology

[0002] Forklifts are industrial handling vehicles, referring to various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. They are commonly used for transporting large items in warehouses, where goods are lifted and transferred by the forks of the forklift.

[0003] During the forklift transport of goods, a large amount of goods piled on the forks will obstruct the driver's view. At this time, the forklift driver cannot observe the situation at the front of the forks and may continue to move forward without feeling anything when the front of the forks collides with external obstacles, causing an accident. In order to address this technical problem, this application proposes a forklift anti-collision device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a forklift anti-collision device. The anti-collision sensor can detect and measure the distance of objects within a range of 0-5 meters in front of the forks, alerting the driver. In the event of an unexpected situation that causes the forklift to continue colliding with an obstructing object at a certain speed, the anti-collision sensor will trigger a proximity sensor switch installed inside the forks. The proximity sensor switch will then send an electrical signal to the vehicle's control system, immediately initiating emergency braking to prevent the forklift from continuing to move forward and causing further damage to the colliding object.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A forklift anti-collision device includes a vehicle body, two forks are provided at the left end of the vehicle body, a proximity sensor switch is provided at the left end of each fork, two springs are fixedly connected to the left end of each fork, an anti-collision sensor is fixedly connected to the left end of each spring, and a pallet is provided at the top of the fork.

[0007] Furthermore, two limit switches are provided on the left side of the vehicle body, and anti-collision plates are hinged to the upper side of each limit switch on the left side of the vehicle body.

[0008] Furthermore, the outer shell of the anti-collision sensor is made of rubber, which is used to generate a certain deformation to buffer the impact force when it hits an object or triggers a proximity sensor switch.

[0009] This utility model has the following beneficial effects:

[0010] 1. In this utility model, the anti-collision sensor can sense and measure the distance of objects within a range of 0-5 meters in front of the forks, and remind the driver. When an unexpected situation occurs and the vehicle body still collides with the object in front at a certain speed, the anti-collision sensor will touch the proximity sensor switch installed inside the forks. The proximity sensor switch sends an electrical signal to the vehicle body's control system, which immediately performs emergency braking to prevent the forklift from continuing to move forward and causing continuous damage to the collision object.

[0011] 2. In this utility model, when the goods are fully on the forks during the pallet or cargo forklift process, the right end of the forklift will touch the anti-collision plate, causing the anti-collision plate to rotate and push the limit switch to press. The limit switch sends a signal to control the vehicle to stop. At this time, the forks can be lifted and transported or stacked to prevent the vehicle from continuing to move and causing the goods to tip over. Attached Figure Description

[0012] Figure 1 This is an exploded view of a forklift anti-collision device proposed in this utility model;

[0013] Figure 2 This is a perspective view of a forklift anti-collision device proposed in this utility model;

[0014] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0016] Legend:

[0017] 1. Pallet; 2. Vehicle body; 3. Collision avoidance sensor; 4. Spring; 5. Proximity sensor switch; 6. Collision avoidance plate; 7. Limit switch; 8. Forks. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 and Figure 3An embodiment of this utility model includes a vehicle body 2, with two forks 8 at the left end of the vehicle body 2. Each fork 8 has a proximity sensor switch 5 at its left end, and two springs 4 are fixedly connected to the left end of each fork 8. An anti-collision sensor 3 is fixedly connected to the left end of each spring 4. A tray 1 is provided at the top of the fork 8. The outer shell of the anti-collision sensor 3 is made of rubber, which is used to generate a certain deformation to buffer the impact force when it hits an object or triggers the proximity sensor switch 5.

[0020] Specifically, the anti-collision sensor 3 is a waterproof, 12mm diameter NPN normally open / normally closed, 15-36V powered, 5-meter infrared invisible light through-beam sensor, model FU-FSDS-15-36V-M1259-NPN-5M. It can transmit and receive infrared invisible light and belongs to Class [Class Name Missing]. 1. Safety laser ensures safety during use and can accurately measure the distance between the sensor and the object within a range of 0-5 meters. The data is transmitted to the control system of vehicle body 2 to remind the driver. The outer shell of the anti-collision sensor 3 is made of rubber, which allows it to deform when it collides with an object, thereby absorbing part of the impact force and reducing damage to the object and the internal electronic components of the anti-collision sensor 3. The spring 4 at the left end of the fork 8 can generate elastic force after the anti-collision sensor 3 is impacted and comes into contact with the proximity sensor switch 5. After vehicle body 2 moves backward, the anti-collision sensor 3 will reset under the action of the elastic force. When the proximity sensor switch 5 is triggered by the impact of the anti-collision sensor 3, it will send an electrical signal to the control system of vehicle body 2, so that vehicle body 2 will immediately brake to prevent vehicle body 2 from continuing to move and causing further damage to the colliding object.

[0021] Reference Figure 1 and Figure 4 Two limit switches 7 are provided on the left side of the vehicle body 2, and anti-collision plates 6 are hinged to the upper side of the limit switches 7 on the left side of the vehicle body 2.

[0022] Specifically, during the pallet or cargo forklifting process, when the cargo is fully inside the forklift 8, its right end will touch the anti-collision plate 6, causing the anti-collision plate 6 to rotate and push the limit switch 7 to press. The limit switch 7 sends a signal to control the vehicle body 2 to stop. At this time, the forklift 8 can perform lifting, transporting or stacking operations to prevent the vehicle body 2 from continuing to move and causing the cargo to tip over.

[0023] Working principle: In actual use, the anti-collision sensor 3 emits and receives infrared invisible light to sense objects within a range of 0-5 meters in front of the forks 8, and accurately measures the distance between the sensor and the object to alert the driver. When an unexpected situation occurs and the vehicle body 2 still collides with the object in front at a certain speed, the outer rubber shell of the anti-collision sensor 3 will first contact the object. Then, under the impact force, it will push the spring 4 to compress until the anti-collision sensor 3 touches the proximity sensor switch 5 installed inside the forks 8. At this time, the proximity sensor switch 5 will send an electrical signal to the control system of the vehicle body 2, immediately performing emergency braking to prevent the forklift from continuing to move forward. The collision continues to cause damage. When the forks 8 enter the bottom of the pallet or cargo, they come into contact with the anti-collision plate 6 set on the left side of the vehicle body 2. At this time, the anti-collision plate 6 will rotate and push the limit switch 7 to trigger it. The vehicle will automatically stop moving, allowing the forks 8 to perform lifting, transporting or stacking operations. This avoids the possibility that the driver will guess whether the cargo has completely entered the forks 8 based on his own feeling, which may lead to the cargo being partially suspended or constantly pushing the cargo over during the transfer. When the cargo is completely inside the surface of the forks 8, the anti-collision sensor 3 is still exposed normally, so that the vehicle body 2 can still maintain normal operation during the transfer of cargo, preventing collisions with pedestrians or other items that interfere with the transport.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A forklift anti-collision device, comprising a vehicle body (2), characterized in that: The vehicle body (2) has two forks (8) on the left side. Each fork (8) has a proximity sensor switch (5) on the left side. Each fork (8) has two springs (4) fixedly connected to the left side. Each spring (4) has an anti-collision sensor (3) fixedly connected to the left side. The top of the fork (8) has a tray (1).

2. The forklift anti-collision device according to claim 1, characterized in that: Two limit switches (7) are provided on the left end of the vehicle body (2), and anti-collision plates (6) are hinged to the upper side of the limit switches (7) on the left end of the vehicle body (2).

3. A forklift anti-collision device according to claim 1, characterized in that: The outer shell of the anti-collision sensor (3) is made of rubber, which is used to generate a certain deformation to buffer the impact force when it hits an object or triggers the proximity sensor switch (5).