A forklift truck rear anti-collision buffer device

By using a modular buffer pad design and a dustproof plate sealing structure, the problem of having to replace the entire forklift rear anti-collision device when it is partially damaged has been solved. This enables rapid replacement and efficient maintenance, reduces maintenance costs and time, and improves the operating efficiency and service life of the equipment.

CN224590658UActive Publication Date: 2026-08-04QINGDAO 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
2025-09-17
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing rear anti-collision device of forklifts has a one-piece molded design for its buffer structure, which means that the whole device needs to be replaced when there is partial damage, which increases maintenance costs and disassembly and assembly time, and affects the operating efficiency of the equipment.

Method used

It adopts a modular buffer pad design, which allows for individual replacement of damaged parts through the plug and slot structure, and is equipped with a dustproof plate, sealing gasket and clamping device to ensure dustproof effect and quick installation.

Benefits of technology

It simplifies the maintenance process, reduces maintenance costs and downtime, and improves the efficiency and lifespan of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to forklift anti -collision technical field discloses a forklift tail anti -collision buffer device, including the support plate, the fixed mounting of support plate has the fixed frame, the fixed frame is equidistant and has the slot, a plurality of the inside all sliding installations of slot have the plug -in block of slot adaptation, the fixed mounting of mounting plate has the buffer pad on the plug -in block, the utility model discloses the buffer pad design of modularization allows the quick replacement of damaged components alone, does not need to dismount whole device, and the maintenance process is greatly simplified and the cost and downtime are reduced, the effective cooperation of dustproof board and sealing washer not only blocks dust and enters, prolongs equipment life, and the design of fixed block and pressure device ensures that dustproof board can stably and accurately cover all slots, and firm pressure or easily dismounts of dustproof board can be realized through simple operation, thereby improve work efficiency, reduce maintenance cost and time.
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Description

Technical Field

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

[0002] Forklifts are widely used industrial handling vehicles in factories, warehouses, ports, logistics centers, and other places. Their efficient and flexible loading and unloading and short-distance transportation capabilities greatly improve the efficiency of material handling. However, when forklifts frequently perform forward, backward, and turning operations in narrow spaces, especially when visibility is obstructed (such as when lifting large loads) or when the driver is not focused or makes operational errors, the risk of collision between the rear of the forklift and fixed facilities (such as walls, columns, and racks), other vehicles, or personnel is relatively high.

[0003] An existing forklift rear anti-collision device (announcement number: CN220165773U) includes a mechanism box and an anti-collision plate. Two sleeves are fixedly connected to the outer surface of the anti-collision plate, and a limiting ring is fixedly connected to the outer surface of each of the two sleeves. A limiting post adapted to the sleeve is fixedly connected to the inner wall of the mechanism box. A telescopic spring is sleeved on the outer surface of each of the two limiting posts, and a sliding ring is slidably connected to the outer surface of each of the two limiting posts.

[0004] This device has at least the following drawbacks when in use: In the actual use of forklifts, the buffer device is usually only damaged in local areas due to collision or long-term wear. However, the one-piece molded buffer structure used in many forklifts means that even if there is local damage, the whole device must be replaced. This not only significantly increases maintenance costs, but also leads to low maintenance efficiency due to the complex and time-consuming disassembly and assembly process, which affects the normal operation and work efficiency of the equipment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rear anti-collision buffer device for forklifts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A forklift rear anti-collision buffer device includes a support plate, a fixed frame is fixedly installed on the support plate, slots are equally spaced on the fixed frame, and inserts adapted to the slots are slidably installed inside the slots. An installation plate is fixedly installed on the inserts, and a buffer pad is fixedly installed on the side of the installation plate opposite to the inserts. A dustproof plate is provided on the fixed frame.

[0007] As a further embodiment of this utility model, the dustproof plate can cover all the slots at the same time, and a sealing gasket is embedded in the side of the dustproof plate facing the fixing frame, and the sealing gasket can abut against the insert block.

[0008] As a further embodiment of this utility model, fixing blocks are fixedly installed at equal intervals on the fixing frame, and the dustproof plate has positioning holes adapted to the fixing blocks at corresponding positions. Each fixing block is provided with a clamping device inside.

[0009] As a further embodiment of this utility model, the clamping device includes a threaded rod, which is rotatably installed inside the fixed block. A hexagonal hole is opened at one end of the threaded rod that protrudes from the fixed block. A nut pair is threadedly installed on the threaded rod, and a connecting rod is fixedly installed on the nut pair. A pressure block is fixedly installed on the connecting rod. The pressure block can partially protrude from the fixed block or be completely inside the fixed block.

[0010] As a further embodiment of this utility model, the cross-section of the pressure block is a right-angled trapezoid, and the acute-angled end of the pressure block is away from the fixing block.

[0011] As a further embodiment of this utility model, a slider is fixedly installed on the nut assembly, and a groove is provided inside the fixing block for the slider to slide.

[0012] As a further embodiment of this utility model, the fixing frame is provided with ear blocks, and each of the ear blocks is provided with mounting holes.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention features a modular buffer pad design that allows for quick and easy replacement of damaged parts without disassembling the entire device, significantly simplifying the maintenance process and reducing costs and downtime. The effective combination of the dustproof plate and sealing gasket not only prevents dust from entering and extends the equipment's lifespan, but the design of the fixing block and clamping device ensures that the dustproof plate can securely and accurately cover all slots. The dustproof plate can also be firmly clamped or easily removed with simple operations, thereby improving work efficiency and reducing maintenance costs and time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a forklift rear anti-collision buffer device proposed in this utility model. Figure 2 This is a schematic diagram showing the location of the slot for the anti-collision buffer device at the rear of a forklift, as proposed in this utility model. Figure 3 This is a schematic diagram of the sealing gasket installation position in a forklift rear anti-collision buffer device proposed in this utility model; Figure 4 This is a schematic diagram of the clamping device in a forklift rear anti-collision buffer device proposed in this utility model; In the diagram: 1. Support plate; 2. Fixing frame; 3. Ear block; 4. Insert block; 5. Mounting plate; 6. Buffer pad; 7. Dustproof plate; 8. Slot; 9. Fixing block; 10. Positioning hole; 11. Sealing gasket; 12. Threaded rod; 13. Hexagonal hole; 14. Nut pair; 15. Connecting rod; 16. Pressure block; 17. Sliding block; 18. Slide groove. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] 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.

[0018] Reference Figures 1 to 4 A forklift rear anti-collision buffer device includes a support plate 1, a fixed frame 2 fixedly installed on the support plate 1, slots 8 are equally spaced on the fixed frame 2, and inserts 4 adapted to the slots 8 are slidably installed inside the slots 8. An installation plate 5 is fixedly installed on the inserts 4, and a buffer pad 6 is fixedly installed on the side of the installation plate 5 away from the inserts 4. A dustproof plate 7 is provided on the fixed frame 2.

[0019] The buffer pad 6 can be quickly installed by inserting the insert 4 downward along the slot 8 on the mounting bracket 2. The buffer pad 6 comes in two shapes: rectangular and curved. When a buffer pad 6 is damaged due to frequent collisions, simply loosen and remove the corresponding mounting plate 5, replace it with a new buffer pad 6 of the same type, and then reinstall and fix it. The whole process does not require disassembling the entire device or affecting other intact buffer pads 6, which greatly simplifies maintenance and reduces replacement costs and time.

[0020] In this embodiment, the dustproof plate 7 can cover all the slots 8 at the same time, and a sealing gasket 11 is embedded in the side of the dustproof plate 7 facing the fixing frame 2. The sealing gasket 11 can abut against the plug 4. After the dustproof plate 7 is installed, the sealing gasket 11 below it will press tightly against the top surface of each plug 4. This design ensures that the dustproof plate 7 can not only block dust, but also form an effective dynamic seal in the gap between the plug 4 and the slot 8, protect the sliding surface and reduce wear.

[0021] In this embodiment, fixing blocks 9 are fixedly installed at equal intervals on the fixing frame 2. The dustproof plate 7 has positioning holes 10 at corresponding positions that are adapted to the fixing blocks 9. Each fixing block 9 has a clamping device inside. When installing or maintaining the dustproof plate 7, the operator needs to accurately align the positioning holes 10 on the dustproof plate 7 and fit it onto each fixing block 9 on the fixing frame 2. These fixing blocks 9 mainly serve the functions of positioning and support, ensuring that the dustproof plate 7 can accurately cover all slots 8. The task of firmly pressing the dustproof plate 7 onto the fixing frame 2 and pressing the sealing gasket 11 is efficiently completed by the clamping device hidden inside the fixing block 9. The design of the positioning holes 10 allows the dustproof plate 7 to be quickly and accurately reset each time.

[0022] In this embodiment, the clamping device includes a threaded rod 12, which is rotatably installed inside the fixing block 9. A hexagonal hole 13 is provided at the end of the threaded rod 12 that protrudes from the fixing block 9. A nut pair 14 is threadedly installed on the threaded rod 12, and a connecting rod 15 is fixedly installed on the nut pair 14. A pressure block 16 is fixedly installed on the connecting rod 15. The pressure block 16 can extend partially out of the fixing block 9 or be completely inside the fixing block 9. When it is necessary to fix the dustproof plate 7, the operator uses a hexagonal wrench to insert into the hexagonal hole 13 at the end of the threaded rod 12 and rotates the wrench. This causes the threaded rod 12 to rotate, driving the nut pair 14 to move outward along the threaded rod 12. The nut pair 14 drives the pressure block 16 to move outward together through the connecting rod 15, so that the pressure block 16 partially protrudes from the fixing block 9. Its lower surface finally presses tightly against the dustproof plate 7 covering the area of ​​the positioning hole 10, thereby locking the dustproof plate 7.

[0023] In this embodiment, the cross section of the pressure block 16 is a right trapezoid, and the acute end of the pressure block 16 is away from the fixing block 9. When the pressure block 16 extends outward to press the dustproof plate 7, its inclined surface first contacts the dustproof plate 7. This inclined surface can generate a component force during the pressing process, which helps to ensure that the positioning hole 10 fits well with the fixing block 9 and improves the overall sealing performance.

[0024] In this embodiment, a slider 17 is fixedly installed on the nut assembly 14, and a groove 18 is provided inside the fixing block 9 for the slider 17 to slide. The slider 17 is embedded in the groove 18 inside the fixing block 9, which restricts the degree of freedom of movement of the nut assembly 14.

[0025] In this embodiment, the fixing frame 2 is provided with lugs 3, and each lug 3 has a mounting hole to facilitate the connection of the entire anti-collision buffer device to the rear frame of the forklift.

[0026] As can be seen from the above description, the above embodiments of this utility model achieve the following technical effects: when a single buffer pad 6 is damaged due to a collision, it is not necessary to disassemble the entire anti-collision device or interfere with other intact buffer pads 6; only the corresponding damaged unit needs to be replaced. The dustproof plate 7 and its integrated sealing gasket 11 constitute a key protective layer. The dustproof plate 7 can completely cover all slot openings 8 to prevent external dust and debris from entering. At the same time, the sealing gasket 11 is tightly pressed against the top surface of each plug 4, forming an effective dynamic seal in the gap between the plug 4 and the slot 8, protecting the key sliding contact surface from contamination and wear.

[0027] The design of the fixed block 9, dustproof plate 7, and positioning hole 10 ensures that the dustproof plate 7 can quickly and accurately reset to cover all slots 8 each time. The clamping device hidden inside the fixed block 9 has a locking force that allows the operator to drive the pressure block 16 to extend and forcefully press the dustproof plate 7 by simply rotating the threaded rod 12 with a hex wrench. At the same time, it enhances the clamping effect of the sealing gasket 11, ensuring the overall sealing and stability of the device. Disassembly can be performed by reversing the operation. Combined with the slider 17 and the groove 18 to prevent the nut pair 14 from rotating, the operation is simple and convenient.

[0028] 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 rear anti-collision buffer device, comprising a support plate (1), wherein a fixing frame (2) is fixedly installed on the support plate (1), characterized in that, The fixing frame (2) has slots (8) evenly spaced, and each slot (8) has a plug (4) that is compatible with the slot (8) slidably installed inside. Each plug (4) has a mounting plate (5) fixedly installed on it. Each mounting plate (5) has a buffer pad (6) fixedly installed on the side away from the plug (4). The fixing frame (2) is provided with a dustproof plate (7).

2. The forklift rear anti-collision buffer device according to claim 1, characterized in that, The dustproof plate (7) can cover all the slots (8) at the same time, and a sealing gasket (11) is inlaid on the side of the dustproof plate (7) facing the fixing frame (2), and the sealing gasket (11) can abut against the insert (4).

3. The forklift rear anti-collision buffer device according to claim 1, characterized in that, Fixing blocks (9) are fixedly installed at equal intervals on the fixing frame (2). The dustproof plate (7) has positioning holes (10) adapted to the fixing blocks (9) at corresponding positions. Each fixing block (9) is provided with a pressing device inside.

4. A forklift rear anti-collision buffer device according to claim 3, characterized in that, The clamping device includes a threaded rod (12), which is rotatably installed inside the fixed block (9). A hexagonal hole (13) is provided at one end of the threaded rod (12) that protrudes from the fixed block (9). A nut pair (14) is threadedly installed on the threaded rod (12). A connecting rod (15) is fixedly installed on the nut pair (14). A pressure block (16) is fixedly installed on the connecting rod (15). The pressure block (16) can partially protrude from the fixed block (9) or be completely inside the fixed block (9).

5. A forklift rear anti-collision buffer device according to claim 4, characterized in that, The cross section of the pressure block (16) is a right trapezoid, and the acute end of the pressure block (16) is away from the fixing block (9).

6. A forklift rear anti-collision buffer device according to claim 4, characterized in that, A slider (17) is fixedly installed on the nut pair (14), and a groove (18) is provided inside the fixing block (9) for the slider (17) to slide.

7. A forklift rear anti-collision buffer device according to claim 1, characterized in that, The fixing frame (2) is provided with ear blocks (3), and each of the ear blocks (3) has a mounting hole.