A forklift front-end collision protection device with mechanical buffer spring.

By using a mechanical buffer spring structure and an alarm device, the problem of forklift collisions is solved, achieving safe buffering and visual warning for the forklift head, improving operational safety and the equipment's ability to adapt to complex working conditions.

CN224577976UActive Publication Date: 2026-07-31QINGDAO HAISONG ZHILIAN HEAVY IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HAISONG ZHILIAN HEAVY IND CO LTD
Filing Date
2025-10-09
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Forklifts are prone to accidental collisions when frequently turning and approaching racks in narrow aisles, leading to rack deformation, wall damage, and safety hazards. Existing technology lacks effective buffer protection devices.

Method used

It adopts a mechanical buffer spring structure, including a crash bar, a moving bar, a spring, and a spring damper. When the crash bar comes into contact with an obstacle, it pushes the moving bar to compress the spring to achieve primary buffering, and the spring damper forms secondary buffering. Combined with the roller triggering the alarm light to remind the operator.

Benefits of technology

It effectively reduces impact force, avoids direct transmission to the vehicle body for damage, ensures a smooth buffering process, prevents secondary impacts, and improves operational safety through visual warnings and physical protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of forklift front collision protection technology, and discloses a forklift front collision protection device with mechanical buffer springs. It includes a forklift front, with two forklift bars fixedly connected to the side wall of the forklift front. Each forklift bar has a sleeve fitted at its end away from the forklift front, and the sleeve is fixedly connected to the outer wall of the forklift bar by bolts. A collision beam is fixedly connected between the tops of the two sleeves, and side impact plates are fixedly connected to both sides of the collision beam. Two movable rods pass through the side wall of the collision beam, and a movable plate is fixedly connected between the ends of the two movable rods near the forklift front. A collision rod is fixedly connected to the end of the movable rod away from the movable plate, and springs are fitted onto the outer walls of the two movable rods. This utility model not only has reliable buffer protection capabilities but also intelligent early warning functions and cargo protection capabilities, significantly improving the safety and practicality of forklift operations under complex working conditions.
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Description

Technical Field

[0001] This utility model relates to the field of forklift front collision protection technology, and in particular to a forklift front collision protection device with a mechanical buffer spring. Background Technology

[0002] Forklifts are industrial transport vehicles used for handling, stacking, and loading / unloading packaged goods. They are widely used in factory workshops, warehousing and logistics, ports and docks, supermarket distribution centers, and other places. Depending on the operating environment and needs, forklifts can be divided into various types, such as electric forklifts, internal combustion forklifts, and reach trucks. Their common feature is that they have high mobility and operational flexibility in limited spaces, which can significantly improve material handling efficiency.

[0003] In actual operation, forklifts often need to frequently turn, turn around, and approach racks in narrow aisles. Operators are prone to fatigue or misjudgment during long hours of operation, which often leads to accidental collisions between forklift heads. This is especially common in high-density rack warehouses or assembly workshops. Once a forklift hits a rack column, wall, or other fixed building structure, it may not only cause rack deformation, wall damage, and loosening of fixing devices, but may also lead to serious consequences such as cargo collapse, rack instability, and wall peeling, resulting in safety hazards and economic losses. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a forklift front collision protection device with a mechanical buffer spring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A forklift head anti-collision protection device with mechanical buffer springs includes a forklift head. Two forklift bars are fixedly connected to the side wall of the forklift head. Each forklift bar has a sleeve fitted at its end away from the forklift head. The sleeve is fixedly connected to the outer wall of the forklift bar by bolts. An anti-collision beam is fixedly connected between the tops of the two sleeves. Side impact plates are fixedly connected to both sides of the anti-collision beam. Two movable rods pass through the side wall of the anti-collision beam. A movable plate is fixedly connected between the ends of the two movable rods near the forklift head. An anti-collision rod is fixedly connected to the end of the movable rod away from the movable plate. Springs are fitted on the outer walls of the two movable rods. The two ends of the springs are fixedly connected to the side walls of the anti-collision rod and the anti-collision beam, respectively. Two protective vertical plates for protecting goods placed on the top of the forklift bars are fixedly connected to the top of the anti-collision beam.

[0006] As a further embodiment of this utility model, a spring damper is fixedly connected to the middle part of the anti-collision bar, and the end of the spring damper away from the anti-collision bar is fixedly connected to the side wall of the anti-collision beam.

[0007] As a further embodiment of this utility model, the side wall of the movable plate is rotatably connected with rollers, the top of the inner wall of the anti-collision beam is fixedly connected with a control button, and the ends of the two side impact plates away from the anti-collision beam are fixedly connected with alarm lights.

[0008] As a further embodiment of this utility model, when the anti-collision bar is subjected to an impact force, it will move towards the anti-collision beam and drive the moving rod to compress the spring for buffering. At the same time as the anti-collision bar moves, it will compress the spring damper.

[0009] As a further embodiment of this utility model, when the moving rod moves, it will drive the moving plate to move towards the forklift head, and when the moving plate moves, it will drive the roller to approach the control button and press the control button.

[0010] As a further embodiment of this utility model, the control button and the two alarm lights are electrically connected.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the anti-collision bar contacts the obstacle and, under the impact force, pushes the moving rod to compress the external spring, achieving primary buffering. Simultaneously, the spring damper in the middle of the anti-collision bar compresses synchronously, forming secondary buffering, effectively reducing the impact force and preventing it from being directly transmitted to the vehicle body and causing damage. During the recovery phase, the spring releases its elasticity, causing the anti-collision bar and the moving rod to return to their original positions. The spring damper acts as a speed limiter, preventing the anti-collision structure from rebounding rapidly and causing secondary impacts, ensuring a smooth and safe buffering process. At the same time, the moving rod drives the moving plate to slide, and the rollers on the moving plate trigger the control button on the top of the anti-collision beam, activating the electrically connected alarm light and issuing a visual warning signal to the operator, indicating that a collision has occurred or that the object is approaching an obstacle. The two protective vertical plates on the top of the anti-collision beam can also effectively protect the upper area of ​​the goods supported by the forklift, avoiding the risk of slippage during collisions or shaking. The overall structure improves operational safety and the equipment's ability to adapt to complex working conditions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a forklift front anti-collision protection device with a mechanical buffer spring proposed in this utility model; Figure 2 This is a schematic diagram of the anti-collision beam and side impact plate structure of this utility model; Figure 3 This is a schematic diagram of the anti-collision bar and spring structure of this utility model; Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0013] In the diagram: 1. Forklift head; 2. Forklift handle; 3. Sleeve; 4. Alarm light; 5. Anti-collision beam; 6. Side impact plate; 7. Moving bar; 8. Moving plate; 9. Anti-collision bar; 10. Spring; 11. Spring damper; 12. Roller; 13. Control button; 14. Protective vertical plate. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Reference Figures 1-4 A forklift front collision protection device with mechanical buffer springs includes a forklift head 1. Two forklift bars 2 are fixedly connected to the side wall of the forklift head 1. A sleeve 3 is fitted onto the end of each forklift bar 2 away from the forklift head 1. The sleeve 3 is fixedly connected to the outer wall of the forklift bar 2 by bolts. A collision beam 5 is fixedly connected between the tops of the two sleeves 3. Side impact plates 6 are fixedly connected to both sides of the collision beam 5. Two movable rods 7 pass through the side wall of the collision beam 5. A movable plate 8 is fixedly connected between the ends of the two movable rods 7 near the forklift head 1. A collision rod 9 is fixedly connected to the end of the movable rod 7 away from the movable plate 8. Springs 10 are fitted onto the outer walls of the two movable rods 7. The two ends of the springs 10 are fixedly connected to the collision rod 9 and the side wall of the collision beam 5, respectively. Two protective vertical plates 14 for protecting goods placed on top of the forklift bars 2 are fixedly connected to the top of the collision beam 5. This further enhances operational safety. In this embodiment, a spring damper 11 is fixedly connected to the middle part of the anti-collision bar 9. The end of the spring damper 11 away from the anti-collision bar 9 is fixedly connected to the side wall of the anti-collision beam 5. When the anti-collision bar 9 is subjected to an impact force, it will move towards the anti-collision beam 5 and drive the moving rod 7 to compress the spring 10 for buffering. While the anti-collision bar 9 is moving, it will compress the spring damper 11. When the moving rod 7 moves, it will drive the moving plate 8 to move towards the forklift head 1. When the forklift accidentally collides with the front during the handling operation, the anti-collision bar 9 will first contact the obstacle and be subjected to the impact force. Under the action of the external force, the anti-collision bar 9 will move backward along the direction of the moving rod 7 and drive the moving rod 7 to compress the spring 10 on its outer wall to generate Elastic deformation provides cushioning, and simultaneously, the spring damper 11 in the middle of the anti-collision bar 9 is compressed, thus forming a double cushioning effect. This prevents the impact force from being directly transmitted to the forklift body. At the same time, when the spring 10 stores and releases its elastic force, the spring damper 11 releases it slowly. After the cushioning process is over, the spring 10 begins to release the stored elastic force, pushing the anti-collision bar 9 and the moving bar 7 back to their original positions. During this process, the spring damper 11 acts as a damping and speed limiter, making the release of the elastic force by the spring 10 slower and smoother, preventing the anti-collision device from rebounding instantly and causing a secondary impact. This effectively controls the cushioning energy and slows down the rebound speed of the device.

[0018] In this embodiment, when the movable plate 8 moves, it drives the roller 12 to approach and press the control button 13. The roller 12 is rotatably connected to the side wall of the movable plate 8. The control button 13 is fixedly connected to the top of the inner wall of the anti-collision beam 5. The two side impact plates 6 are fixedly connected to the end away from the anti-collision beam 5 with the alarm light 4. The control button 13 and the two alarm lights 4 are electrically connected. When the movable rod 7 moves, it also drives the movable plate 8 connected to its end to slide towards the forklift head 1. The roller 12 is rotatably connected to the side wall of the movable plate 8. During the movement, the roller 12 approaches and presses the control button 13 set on the top of the inner wall of the anti-collision beam 5, thereby triggering the two electrically connected alarm lights 4 to emit a visual warning signal, prompting the driver that a collision has occurred or an obstacle is nearby, so as to take timely braking measures to prevent further damage.

[0019] As can be seen from the above description, the above embodiments of this utility model achieve the following technical effects: When in use, firstly, after the anti-collision bar 9 comes into contact with an obstacle, it will push the moving bar 7 to compress the outer wall spring 10 under the action of the impact force to achieve primary buffering. At the same time, the spring damper 11 set in the middle is further compressed synchronously to form secondary buffering, thereby effectively reducing the direct transmission of impact force and avoiding damage to the vehicle body. Secondly, during the impact force release phase, as the spring 10 recovers its elasticity and drives the anti-collision bar 9 and the moving bar 7 to reset, the spring damper 11 controls the speed of the release process, so that the anti-collision component rebounds smoothly, avoids violent rebound that causes secondary impact, and improves safety stability. During the movement of the moving rod 7, the moving plate 8 connected at the end slides. The roller 12 on the side wall of the moving plate 8 can trigger the control button 13 set on the top of the anti-collision beam 5 in time, thereby illuminating the electrically connected alarm light 4 and sending a clear visual warning signal to the workers, realizing the warning function of reminder during the event and prompting after the event. Meanwhile, the two protective vertical plates 14 installed on the top of the anti-collision beam 5 can provide physical protection to the upper part of the goods during the lifting process of the forklift 2, preventing the goods from falling off due to inertial sliding or collision, and further improving the safety of the overall handling operation.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A forklift truck head anti-collision protection device with mechanical buffer spring, comprising a forklift truck head (1), the side wall of the forklift truck head (1) is fixedly connected with two forked rods (2), characterized in that, Both forklifts (2) are fitted with sleeves (3) at the ends away from the forklift head (1). The sleeves (3) are fixedly connected to the outer wall of the forklifts (2) by bolts. A crash beam (5) is fixedly connected between the tops of the two sleeves (3). Side impact plates (6) are fixedly connected to both sides of the crash beam (5). Two moving rods (7) are passed through the side wall of the crash beam (5). A moving plate (8) is fixedly connected between the ends of the two moving rods (7) near the forklift head (1). A crash rod (9) is fixedly connected to the end of the moving rod (7) away from the moving plate (8). Springs (10) are fitted on the outer walls of the two moving rods (7). The two ends of the springs (10) are fixedly connected to the side walls of the crash rod (9) and the crash beam (5) respectively. Two protective vertical plates (14) for protecting the goods placed on the top of the forklifts (2) are fixedly connected to the top of the crash beam (5).

2. The forklift truck mast collision protection device with mechanical cushion spring according to claim 1, characterized in that, A spring damper (11) is fixedly connected to the middle part of the anti-collision bar (9), and the end of the spring damper (11) away from the anti-collision bar (9) is fixedly connected to the side wall of the anti-collision beam (5).

3. A forklift front collision protection device with a mechanical buffer spring according to claim 1, characterized in that, The side wall of the movable plate (8) is rotatably connected to a roller (12), the top of the inner wall of the anti-collision beam (5) is fixedly connected to a control button (13), and the two side impact plates (6) are fixedly connected to an alarm light (4) at the end away from the anti-collision beam (5).

4. A forklift front collision protection device with a mechanical buffer spring according to claim 2, characterized in that, When the anti-collision bar (9) is subjected to impact force, it will move towards the anti-collision beam (5) and drive the moving rod (7) to squeeze the spring (10) for buffering. While the anti-collision bar (9) moves, it will compress the spring damper (11).

5. A forklift front collision protection device with a mechanical buffer spring according to claim 1, characterized in that, When the moving rod (7) moves, it will drive the moving plate (8) to move towards the forklift head (1). When the moving plate (8) moves, it will drive the roller (12) to approach the control button (13) and press the control button (13).

6. A forklift front collision protection device with a mechanical buffer spring according to claim 3, characterized in that, The control button (13) and the two alarm lights (4) are electrically connected.