Anti-toppling stacker truck

By designing deployable auxiliary wheels and an electric push rod system on the stacker truck, the problem of the stacker truck tipping over on uneven road conditions has been solved, improving safety and stability and ensuring the safety of operators and goods.

CN224493640UActive Publication Date: 2026-07-14ZHEJIANG HEIRRMU MECHANICAL & ELECTRICAL EQUIP MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HEIRRMU MECHANICAL & ELECTRICAL EQUIP MFG
Filing Date
2025-07-03
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Forklifts are prone to tipping over on uneven roads due to a shift in their center of gravity, posing a safety hazard, especially when under heavy loads, which could damage goods and cause personal injury.

Method used

The design incorporates anti-tipping components, including deployable auxiliary wheels and an electric push rod system. The auxiliary wheels increase the ground support area, reducing the risk of tipping due to center of gravity shift.

Benefits of technology

It effectively improves the stability and safety of stackers in poor road conditions, avoiding damage to goods and injury to personnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an anti-tipping stacker, aiming to solve the problem that stackers are prone to uneven wheel loads on uneven workshop floors, leading to a shift in the stacker's center of gravity and potentially causing it to tip over. The key technical points are: an anti-tipping stacker includes a stacker body with receiving slots on both sides. An deployable anti-tipping component is housed within these slots. The anti-tipping component includes two bases at the lower end of the receiving slots, each with a movable shaft rotatably connected to it. A rotating arm, L-shaped in structure, is fixedly mounted on the movable shaft, with a drive rod passing through its lower short side. This anti-tipping stacker, by deploying the anti-tipping component, allows the auxiliary wheels to contact the ground, significantly increasing the stacker's bottom support area and effectively reducing the risk of tipping due to a shifted center of gravity on uneven surfaces, thus improving the safety of the stacker.
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Description

Technical Field

[0001] This utility model relates to the field of stacker technology, and more specifically, to an anti-tipping stacker. Background Technology

[0002] Stacker trucks are a type of wheeled handling vehicle used for loading, unloading, stacking, and short-distance transportation of palletized goods. They are widely used in warehouses, workshops, logistics centers, and other places, and can significantly improve the efficiency of goods handling and storage while reducing the intensity of manual labor.

[0003] A stacker typically consists of a chassis, forks, a hydraulic system, a drive system, and a control system. The forks are used to carry goods, and the hydraulic system raises and lowers the forks. The drive system provides power for the stacker to move, and the control system allows operators to perform various operations on the stacker.

[0004] In actual use, when the workshop floor is uneven, the wheels of the stacker are prone to uneven force, which causes the center of gravity of the stacker to shift. This is especially noticeable when the stacker is carrying heavy goods, and may even cause the stacker to tip over, which will not only damage the goods and the stacker itself, but may also cause injury to the operators. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an anti-tipping stacker. By deploying the anti-tipping components, the auxiliary wheels are brought into contact with the ground, greatly increasing the bottom support area of ​​the stacker. This effectively reduces the risk of the stacker tipping over due to a shift in the center of gravity when the road conditions are poor, thus improving the safety of using the stacker.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an anti-tipping stacker includes a stacker body, with receiving slots on both sides of the stacker body. An deployable anti-tipping component is housed within each receiving slot. The anti-tipping component includes two bases located at the lower end of the receiving slots, each base rotatably connected to a movable shaft. A rotating arm is fixedly sleeved on each movable shaft. The rotating arm has an L-shaped structure, and a drive rod passes through its lower short side. The stacker body also includes an electric push rod located at its bottom. A drive plate is located on the telescopic end of the electric push rod, and the drive plate is fixedly connected to the drive rod. An obstacle groove is provided on the rotating arm for the drive rod to move, and the inner wall of the obstacle groove fits against the outer wall of the drive rod. A mounting frame is provided on the long sides of both rotating arms, and an auxiliary wheel is provided on the mounting frame. When the anti-tipping component is deployed, the auxiliary wheel contacts the ground.

[0007] The present invention is further configured such that: a sliding groove is provided on the base for the drive rod to slide, and the outer wall of the drive rod is in contact with the inner wall of the sliding groove.

[0008] The present invention is further configured such that: a roller is fixedly sleeved on the drive rod, and the roller is located in the groove for rolling contact.

[0009] The present invention is further configured such that: a plurality of flexible pads are provided on the inner wall of the receiving groove, which abut against the mounting frame, and the plurality of flexible pads are distributed vertically at uniform intervals.

[0010] The present invention is further configured such that: the mounting frame is in the form of a U-shape, and the long side of the rotating arm is fixedly connected to the inner side of the mounting frame.

[0011] The present invention is further configured such that: two sets of auxiliary wheels are provided along the extension direction of the long side of the rotating arm.

[0012] The present invention is further configured such that: an angle sensor is installed inside the body of the stacker vehicle, and an alarm is electrically connected to the angle sensor.

[0013] In summary, this utility model has the following beneficial effects:

[0014] By deploying the anti-tipping components, the auxiliary wheels are brought into contact with the ground, greatly increasing the bottom support area of ​​the stacker. This effectively reduces the risk of the stacker tipping over due to a shift in the center of gravity when the road conditions are poor, improving the safety of stacker use, preventing damage to goods and the stacker itself, and ensuring the personal safety of operators. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the stacker truck of this utility model;

[0016] Figure 2 This is a schematic diagram of the anti-tilt component of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the unfolding process of the anti-tilt component of this utility model.

[0018] In the diagram: 1. Stacker body; 2. Receiving slot; 3. Anti-tipping component; 31. Base; 32. Rotating arm; 33. Drive rod; 34. Drive plate; 321. Clearance slot; 35. Mounting frame; 36. Auxiliary wheel; 311. Slide; 331. Roller. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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.

[0022] The present invention will now be described in detail with reference to the accompanying drawings.

[0023] Reference Figures 1-3 An anti-tipping stacker includes a stacker body 1, which includes a vehicle body, forks, a hydraulic system, a drive system, and a control system. The above structures are all mature existing technologies. The operation of fork lifting and stacker driving can be referred to the existing electric stacker structure, which will not be elaborated here.

[0024] Both sides of the stacker body 1 are provided with receiving slots 2. The receiving slots 2 house deployable anti-tipping components 3. The anti-tipping components 3 include two bases 31 fixedly installed at the lower end of the receiving slots 2. Each base 31 is rotatably connected to a movable shaft. A rotating arm 32 is fixedly sleeved on the movable shaft. The rotating arm 32 has an L-shaped structure. A drive rod 33 passes through the lower short side of the rotating arm 32. It also includes an electric push rod fixedly installed at the bottom of the stacker body 1. A drive plate 34 is fixedly installed on the telescopic end of the electric push rod. The drive plate 34 is fixedly connected to the drive rod 33. The rotating arm 32 has a clearance slot 321 for the drive rod 33 to move. The inner wall of the clearance slot 321 fits against the outer wall of the drive rod 33. The long sides of the two rotating arms 32 are jointly fixed with a mounting bracket 35. An auxiliary wheel 36 is fixedly installed on the mounting bracket 35. When the anti-tipping components 3 are deployed, the auxiliary wheel 36 contacts the ground.

[0025] Additionally, the base 31 has a slide groove 311 for the drive rod 33 to slide. The outer wall of the drive rod 33 fits against the inner wall of the slide groove 311. When the drive rod 33 moves under the drive of the electric push rod, it will slide along the slide groove 311. The slide groove 311 plays a guiding and limiting role in the movement of the drive rod 33, enhancing the accuracy and stability of the movement of the drive rod 33.

[0026] A roller 331 is fixedly sleeved on the drive rod 33. The roller 331 is located in the slide groove 311 and makes rolling contact. The setting of the roller 331 transforms the sliding friction between the drive rod 33 and the slide groove 311 into rolling friction, which greatly reduces the friction force, reduces the resistance when the drive rod 33 moves, and improves the smoothness of the drive rod 33's movement.

[0027] Several flexible pads (not shown in the figure) that abut against the mounting bracket 35 are fixedly provided on the inner wall of the receiving groove 2. The flexible pads are evenly distributed vertically. The flexible pads are made of rubber, which can effectively reduce the collision and friction between the anti-tilting component 3 and the inner wall of the receiving groove 2 during the storage process and reduce the generation of noise.

[0028] The mounting bracket 35 has an overall U-shaped structure. The long side of the rotating arm 32 is fixedly connected to the inner side of the mounting bracket 35. This structure can enhance the connection strength between the rotating arm 32 and the mounting bracket 35, thereby making the unfolding and retraction of the mounting bracket 35 by the rotating arm 32 more reliable and stable.

[0029] Two sets of auxiliary wheels 36 are provided along the extension direction of the long side of the rotating arm 32. During the operation of the stacker truck, the two sets of auxiliary wheels 36 can provide uniform and stable support force, ensuring the stability and safety of the stacker truck when the road conditions are poor.

[0030] An inclination sensor (not shown in the figure) is fixedly installed inside the main body 1 of the stacker truck. An alarm (not shown in the figure) is electrically connected to the inclination sensor. The inclination sensor monitors the tilt angle of the stacker truck in real time. When the tilt angle exceeds the preset value, the alarm can send a signal to remind the operator in time.

[0031] Working Principle: When facing uneven workshop floors or other poor road conditions, this stacker truck can improve stability by deploying the anti-tipping components 3 on both sides. Specifically, the electric push rod is activated, and its telescopic end extends, causing the drive plate 34 and drive rod 33 to move as a whole. The drive rod 33 passes through the lower end of the rotating arm 32, and the rotating arm 32 is rotatably connected to the base 31. Therefore, when the drive rod 33 moves, it applies a force to the lower end of the rotating arm 32, causing the rotating arm 32 to rotate around the movable axis. During the rotation, the drive rod 33 adaptably slides within the clearance groove 321. The rotation also causes the mounting bracket 35 connected to the rotating arm 32 to gradually rotate out of the receiving groove 2 for deployment (see appendix). Figure 3(At the position indicated by the dotted line in the middle) When the anti-tipping component 3 is fully deployed, the auxiliary wheel 36 on the mounting frame 35 contacts the ground. At this time, the bottom support area of ​​the stacker body 1 is significantly increased under the support of the mounting frames 35 on both sides and the auxiliary wheel 36, thereby reducing the risk of the stacker tipping over.

[0032] The hydraulic system, drive system, control system, and anti-tilt component 3 of the stacker truck body 1 of this utility model are all controlled and coordinated by being electrically connected to the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, and the power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0033] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. An anti-tipping stacker, comprising a stacker body (1), characterized in that: The stacker body (1) has receiving slots (2) on both sides. An unfoldable anti-tipping component (3) is installed in the receiving slot (2). The anti-tipping component (3) includes two bases (31) at the lower end of the receiving slot (2). A movable shaft is rotatably connected to each of the two bases (31). A rotating arm (32) is fixedly sleeved on the movable shaft. The rotating arm (32) has an L-shaped structure. A drive rod (33) is passed through the short side of the lower end of the rotating arm (32). The stacker body (1) also includes an electric push rod at the bottom. A drive plate (34) is provided on the telescopic end of the electric push rod. The drive plate (34) is fixedly connected to the drive rod (33). A clearance groove (321) for the drive rod (33) to move is provided on the rotating arm (32). The inner wall of the clearance groove (321) is in contact with the outer wall of the drive rod (33). A mounting bracket (35) is provided on the long side of the two rotating arms (32). An auxiliary wheel (36) is provided on the mounting bracket (35). When the anti-tilt component (3) is unfolded, the auxiliary wheel (36) contacts the ground.

2. The anti-tipping stacker truck according to claim 1, characterized in that: The base (31) has a sliding groove (311) for the drive rod (33) to slide, and the outer wall of the drive rod (33) is in contact with the inner wall of the sliding groove (311).

3. The anti-tipping stacker truck according to claim 2, characterized in that: A roller (331) is fixedly sleeved on the drive rod (33), and the roller (331) is located in the slide groove (311) for rolling contact.

4. The anti-tipping stacker truck according to claim 1, characterized in that: The inner wall of the receiving groove (2) is provided with a number of flexible pads that abut against the mounting frame (35), and the number of flexible pads are evenly distributed vertically.

5. The anti-tipping stacker truck according to claim 1, characterized in that: The mounting bracket (35) has an overall U-shaped structure, and the long side of the rotating arm (32) is fixedly connected to the inner side of the mounting bracket (35).

6. The anti-tipping stacker truck according to claim 1, characterized in that: The auxiliary wheels (36) are provided in two sets along the extension direction of the long side of the rotating arm (32).

7. The anti-tipping stacker truck according to claim 1, characterized in that: The stacker vehicle body (1) is equipped with an inclination sensor inside, and an alarm is electrically connected to the inclination sensor.