A forklift fork anti-collision device with automatic alarm function
By installing anti-collision devices with automatic alarm functions on the forks, and using sensors and protective plate buffer components, the problem of fork collisions can be solved, thereby protecting the forks and other objects, avoiding direct collision damage, and alerting operators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING DELMENG TECHNOLOGY CO LTD
- Filing Date
- 2025-06-02
- Publication Date
- 2026-06-19
AI Technical Summary
When the forks are mishandled or the environment changes, they are prone to colliding with shelves or walls, causing damage to the forks and other objects, which affects the handling process.
Design a fork collision avoidance device with automatic alarm function, including a distance sensor, an alarm component, a protective plate, and a buffer component. The sensor detects the collision risk, the controller issues an alarm, and the cylinder drives the protective plate to rotate in front of the fork. The buffer component buffers the collision force and protects the fork and other objects.
Effectively prevents forks from directly contacting shelves or walls, protecting forks and other objects, reducing damage, and alerting workers to avoid serious consequences.
Smart Images

Figure CN224377599U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forklift technology, specifically a forklift anti-collision device with automatic alarm function. Background Technology
[0002] Forklifts are intelligent equipment used for material handling. They achieve bidirectional automatic extension and retraction through adjustable-length forks and are mainly used for precise storage and retrieval of goods in automated warehousing, production lines and other scenarios.
[0003] In actual use, due to prolonged loading and unloading of goods, the forklift may, due to operational errors or environmental changes, cause the fork tips to get too close to the rack or wall, resulting in collisions between the fork tips and the rack or wall, causing damage to the fork tips and potentially damaging the rack or wall, leading to the collapse of goods and affecting the handling process. Utility Model Content
[0004] The purpose of this invention is to provide a fork anti-collision device with automatic alarm function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A fork anti-collision device with automatic alarm function includes a fork body, a protective mechanism, and an adjustment mechanism;
[0007] The protective mechanism includes a distance sensor, an alarm component, two protective plates, and two buffer components. The alarm component is located below the fork body, the distance sensor is located on the alarm component, the two protective plates are located on both sides of the fork body, and each buffer component is located inside one of the protective plates.
[0008] The adjustment mechanism includes a pushing component and two rotating components.
[0009] As a further embodiment of this utility model: the pushing assembly includes a cylinder, a pushing frame and two racks. The cylinder is fixedly disposed below the fork body, and the two racks are slidably disposed below the fork body. The two ends of the pushing frame are fixedly connected to the two racks respectively, and the side of the pushing frame away from the racks is fixedly connected to the output end of the cylinder.
[0010] As a further embodiment of this utility model: each rotating component includes a gear, a fixed rod, and a connecting plate. The fixed rod is fixedly disposed below the fork body, the center of the gear is rotatably disposed at the bottom end of the fixed rod, and the gear meshes with one of the racks. The connecting plate is fixedly disposed on the gear.
[0011] As a further embodiment of this utility model: a guide rod is provided above the connecting plate, and a guide groove corresponding to the guide rod is opened on the bottom surface of the fork body, and the guide rod is slidably disposed inside the guide groove.
[0012] As a further embodiment of this utility model: each buffer assembly includes a buffer groove, a fixed plate, two springs and two dampers. The fixed plate is fixedly disposed at the end of one of the connecting plates away from the gear. The buffer groove is opened inside one of the protective plates and is slidably connected to the fixed plate. The two ends of each spring are fixedly connected to one side of the buffer groove and one side of the fixed plate, respectively. The two ends of each damper are fixedly connected to one side of the buffer groove and one side of the fixed plate, respectively. Each spring is sleeved on the outer wall of a damper.
[0013] As a further embodiment of this utility model: the alarm assembly includes a vertical plate and a buzzer alarm. The vertical plate is fixedly installed on the bottom surface of the fork body, the distance sensor is fixedly installed on one side of the vertical plate, and the buzzer alarm is fixedly installed on the side of the vertical plate away from the distance sensor.
[0014] As a further embodiment of this utility model: each rack has a groove at its top, and the bottom surface of the fork body is provided with a sliding strip corresponding to the groove.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model discloses a fork anti-collision device with automatic alarm function. When the distance sensor detects that the fork body is too close to an object, the distance sensor will emit an electrical signal and transmit it to the controller. The controller will control the buzzer alarm to sound an alarm. At the same time, the cylinder will retract, driving the push frame to move. The push frame will drive the two racks to move, thereby driving the rotating assembly to rotate and driving the two protective plates to rotate. By rotating the two protective plates on both sides of the fork body to the front of the fork body, the fork body is protected, preventing the ends of the fork body from directly contacting objects such as shelves and walls, thus protecting the fork body.
[0017] 2. This utility model provides a fork anti-collision device with an automatic alarm function. After the connecting plate rotates to the front of the fork body, in the event of a collision, objects such as shelves and walls will first come into contact with the two protective plates. When they come into contact with the protective plates, they will apply pressure to the protective plates. At this time, the two protective plates will drive the buffer groove to move together towards the fork body. At this time, the spring and damper located between the buffer groove and the fixed plate will contract, which will play a buffering role and prevent serious damage to the shelves, walls and other objects. At the same time, it will also protect the fork body. After the collision ends, the spring and damper will reset when there is no pressure, so as to buffer the next collision.
[0018] 3. The present invention provides a fork anti-collision device with automatic alarm function. When the fork body is transporting goods, the distance sensor located below the fork body will detect the position between the fork body and objects such as shelves and walls. When it detects that the fork body is too close to the object, the distance sensor will emit an electrical signal and transmit the electrical signal to the controller. The controller will then control the buzzer alarm to sound an alarm and remind the surrounding staff to prevent serious consequences. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .
[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .
[0021] Figure 3 This utility model Figure 2 A magnified structural diagram at point A.
[0022] Figure 4 This is a schematic diagram of the structure of the protective plate of this utility model.
[0023] Figure 5 This is a schematic diagram of the connecting plate of this utility model.
[0024] Figure 6 This utility model Figure 5 A magnified structural diagram at point B.
[0025] Figure 7 This is a schematic diagram of the planar structure of this utility model.
[0026] Figure 8 This utility model Figure 7 A magnified structural diagram at point C.
[0027] The components include: 1. Fork body; 2. Protective plate; 3. Cylinder; 4. Push frame; 5. Rack; 6. Gear; 7. Fixing rod; 8. Connecting plate; 9. Guide rod; 10. Guide groove; 11. Buffer groove; 12. Spring; 13. Damper; 14. Distance sensor; 15. Vertical plate; 16. Buzzer alarm; 18. Fixing plate. Detailed Implementation
[0028] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0029] The present invention provides the following preferred embodiments:
[0030] Example 1, as Figures 1-8 As shown, a fork anti-collision device with automatic alarm function includes a fork body 1, and also includes a protective mechanism and an adjustment mechanism;
[0031] The protective mechanism includes a distance sensor 14, an alarm assembly, two protective plates 2, and two buffer assemblies. The alarm assembly is located below the fork body 1, the distance sensor 14 is located on the alarm assembly, the two protective plates 2 are respectively located on both sides of the fork body 1, and each buffer assembly is located inside one protective plate 2.
[0032] The adjustment mechanism includes a push component and two rotating components;
[0033] This anti-collision device is installed at the end of the upper fork body 1. When the upper fork body moves, it is protected by the protective plate 2 to prevent the upper fork body from colliding with other objects.
[0034] like Figures 1-8 As shown, the pushing assembly includes a cylinder 3, a pushing frame 4, and two racks 5. The cylinder 3 is fixedly installed below the fork body 1, and the two racks 5 are slidably installed below the fork body 1. The two ends of the pushing frame 4 are fixedly connected to the two racks 5 respectively, and the side of the pushing frame 4 away from the racks 5 is fixedly connected to the output end of the cylinder 3.
[0035] When the fork body 1 is handling goods, the distance sensor 14 located below the fork body 1 will detect the position between the fork body 1 and objects such as shelves and walls. When it is detected that the fork body 1 is too close to the object, the distance sensor 14 will emit an electrical signal and transmit the electrical signal to the alarm component. The alarm component will issue an alarm to remind the staff. At the same time, the cylinder 3 will retract, driving the push frame 4 to move. The push frame 4 will drive the two racks 5 to move, thereby driving the rotating component to rotate and driving the two protective plates 2 to rotate. By rotating the two protective plates 2 on both sides of the fork body 1 to the front of the fork body 1, the fork body 1 is protected and prevented from direct contact with objects such as shelves and walls.
[0036] like Figures 1-8 As shown, each rotating component includes a gear 6, a fixed rod 7, and a connecting plate 8. The fixed rod 7 is fixedly installed below the fork body 1. The center of the gear 6 is rotatably installed at the bottom end of the fixed rod 7, and the gear 6 meshes with one of the racks 5. The connecting plate 8 is fixedly installed on the gear 6.
[0037] When rack 5 moves, it drives gear 6 to rotate. When gear 6 rotates, it drives connecting plate 8 to rotate as well. When connecting plate 8 rotates, it drives the corresponding protective plate 2 to rotate from one side of fork body 1 to the front of fork body 1, thus protecting fork body 1.
[0038] like Figures 1-8 As shown, a guide rod 9 is provided above the connecting plate 8, and a guide groove 10 corresponding to the guide rod 9 is provided on the bottom surface of the fork body 1. The guide rod 9 is slidably disposed inside the guide groove 10.
[0039] When the connecting plate 8 rotates, the guide rod 9 fixed above it will rotate simultaneously. The guide groove 10 guides and fixes the guide rod 9, thereby enhancing stability.
[0040] like Figures 1-8 As shown, each buffer assembly includes a buffer groove 11, a fixed plate 18, two springs 12 and two dampers 13. The fixed plate 18 is fixedly disposed at one end of one of the connecting plates 8 away from the gear 6. The buffer groove 11 is opened inside one of the protective plates 2. The buffer groove 11 is slidably connected to the fixed plate 18. The two ends of each spring 12 are fixedly connected to one side of the buffer groove 11 and one side of the fixed plate 18, respectively. The two ends of each damper 13 are fixedly connected to one side of the buffer groove 11 and one side of the fixed plate 18, respectively. Each spring 12 is sleeved on the outer wall of a damper 13.
[0041] After the connecting plate 8 rotates to the front of the fork body 1, when a collision occurs, objects such as shelves and walls will first come into contact with the two protective plates 2. When they come into contact with the protective plates 2, they will apply pressure to the protective plates 2. At this time, the two protective plates 2 will drive the buffer groove 11 to move together towards the fork body 1. At this time, the spring 12 and damper 13 located between the buffer groove 11 and the fixed plate 18 will contract, which will have a buffering effect, preventing serious damage to the shelves, walls and other objects, and also protecting the fork body 1. After the collision ends, the spring 12 and damper 13 will reset when there is no pressure, so as to buffer the next collision.
[0042] like Figures 1-8 As shown, the alarm assembly includes a vertical plate 15 and a buzzer alarm 16. The vertical plate 15 is fixedly installed on the bottom surface of the fork body 1, the distance sensor 14 is fixedly installed on one side of the vertical plate 15, and the buzzer alarm 16 is fixedly installed on the side of the vertical plate 15 away from the distance sensor 14.
[0043] When the distance sensor 14 detects that the fork body 1 is too close to an object, it will emit an electrical signal and transmit the signal to the buzzer alarm 16. The buzzer alarm 16 will sound an alarm to remind the surrounding staff and prevent serious consequences.
[0044] like Figures 1-8As shown, each rack 5 has a groove on its top, and the bottom surface of the fork body 1 has a slide bar corresponding to the groove. By providing the groove and slide bar, the rack 5 can slide on the bottom surface of the fork body 1, and the rack 5 is guided at the same time.
Claims
1. A fork anti-collision device with automatic alarm function, comprising a fork body (1), characterized in that, It also includes protective and regulatory mechanisms; The protective mechanism includes a distance sensor (14), an alarm component, two protective plates (2) and two buffer components. The alarm component is located below the fork body (1), the distance sensor (14) is located on the alarm component, the two protective plates (2) are located on both sides of the fork body (1), and each buffer component is located inside a protective plate (2). The adjustment mechanism includes a pushing component and two rotating components.
2. The fork anti-collision device with automatic alarm function according to claim 1, characterized in that, The pushing assembly includes a cylinder (3), a pushing frame (4), and two racks (5). The cylinder (3) is fixedly installed below the fork body (1), and the two racks (5) are slidably installed below the fork body (1). The two ends of the pushing frame (4) are fixedly connected to the two racks (5) respectively, and the side of the pushing frame (4) away from the racks (5) is fixedly connected to the output end of the cylinder (3).
3. The fork anti-collision device with automatic alarm function according to claim 2, characterized in that, Each rotating component includes a gear (6), a fixed rod (7), and a connecting plate (8). The fixed rod (7) is fixedly installed below the fork body (1). The center of the gear (6) is rotatably installed at the bottom end of the fixed rod (7), and the gear (6) meshes with one of the racks (5). The connecting plate (8) is fixedly installed on the gear (6).
4. The fork anti-collision device with automatic alarm function according to claim 3, characterized in that, A guide rod (9) is provided above the connecting plate (8), and a guide groove (10) corresponding to the guide rod (9) is provided on the bottom surface of the fork body (1). The guide rod (9) is slidably disposed inside the guide groove (10).
5. The fork anti-collision device with automatic alarm function according to claim 4, characterized in that, Each buffer assembly includes a buffer groove (11), a fixed plate (18), two springs (12) and two dampers (13). The fixed plate (18) is fixedly disposed at one end of one of the connecting plates (8) away from the gear (6). The buffer groove (11) is opened inside one of the protective plates (2). The buffer groove (11) is slidably connected to the fixed plate (18). The two ends of each spring (12) are fixedly connected to one side of the buffer groove (11) and one side of the fixed plate (18) respectively. The two ends of each damper (13) are fixedly connected to one side of the buffer groove (11) and one side of the fixed plate (18) respectively. Each spring (12) is sleeved on the outer wall of a damper (13).
6. The fork anti-collision device with automatic alarm function according to claim 5, characterized in that, The alarm assembly includes a vertical plate (15) and a buzzer alarm (16). The vertical plate (15) is fixedly installed on the bottom surface of the fork body (1). The distance sensor (14) is fixedly installed on one side of the vertical plate (15). The buzzer alarm (16) is fixedly installed on the side of the vertical plate (15) away from the distance sensor (14).
7. The fork anti-collision device with automatic alarm function according to claim 6, characterized in that, Each rack (5) has a groove at its top, and the bottom surface of the fork body (1) is provided with a slide bar corresponding to the groove.