Excavator with anti-rollover structure

The anti-rollover device, featuring a detachable positioning component and a gravity-adaptive droop structure, solves the problem of high rollover risk for traditional excavators operating in complex terrain. It enables rapid installation, disassembly, and flexible adjustment, improving the excavator's adaptability and stability during construction.

CN224412648UActive Publication Date: 2026-06-26SHANDONG WUDIJIN LAND DEV & CONSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG WUDIJIN LAND DEV & CONSTR CO LTD
Filing Date
2025-06-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional excavators have a high risk of tipping over when operating in complex terrain. Existing anti-tumble devices are cumbersome to install and dismantle and are difficult to switch quickly, making them unsuitable for different working conditions.

Method used

The anti-rollover device, which adopts a detachable positioning component and a gravity-adaptive drooping structure, includes a positioning component, a connecting arm, and a support component. It can be quickly installed, disassembled, and flexibly adjusted through angle adjustment components and limit plates. Combined with a damping slider and a return spring, it buffers vibration and provides dynamic auxiliary support.

Benefits of technology

It simplifies the installation and disassembly process, improves construction adaptability and driving stability, reduces transportation and storage difficulties, and enhances the safety and operating efficiency of excavators under harsh working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of excavators with anti-rollover structure belong to excavator auxiliary construction technical field, its technical key points include excavator body, the both sides of excavator body cab are equipped with positioning assembly, two The side opposite of positioning assembly is equipped with connecting arm. The device connecting arm and support component adopt gravity self-adapting drooping structure, provide dynamic auxiliary support when excavator is walking. When encountering bumpy road, the vibration of lateral tilting walking wheel is transmitted to sliding arm through support frame, and buffer vibration energy under the synergistic effect of reset spring and damping slide block, greatly reduce the conduction to fuselage, to improve driving stability. In addition, the hinged design of support frame and connecting arm cooperates the angle limit of first limiting plate and second limiting plate, both ensure flexible connection to adapt to complex terrain, and prevent the structure fracture caused by extreme swing, and give consideration to safety and durability.
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Description

Technical Field

[0001] This utility model belongs to the field of excavator auxiliary construction technology, specifically relating to an excavator with an anti-rollover structure. Background Technology

[0002] When an excavator is working, its center of gravity position changes constantly with the movement of the boom, stick, and bucket. Especially when digging with a large radius or lifting heavy objects, the shift in the center of gravity may cause the entire machine to become unstable. Secondly, excavators usually operate in complex terrain, such as slopes, soft soil foundations, or uneven roads. These unstable support surfaces will significantly reduce the stability of the equipment, which may cause the excavator to tip over.

[0003] Traditional excavators have a high risk of tipping over when operating in complex terrain. Existing anti-tumble devices mostly use fixed support structures, which are not only cumbersome to install and disassemble, requiring special tools for bolt tightening, but also difficult to adapt to the need for rapid switching between different working conditions. Therefore, we propose an excavator with an anti-tumble structure to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide an excavator with an anti-rollover structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an excavator with an anti-rollover structure, comprising an excavator body, wherein positioning components are installed on both sides of the excavator body cab, a connecting arm is installed on the opposite side of the two positioning components, and a support component for side auxiliary support of the excavator body is installed on the end of the two connecting arms away from the positioning components.

[0006] The positioning component is also equipped with an angle adjustment component that works in conjunction with the anti-tilt angle adjustment support component.

[0007] Preferably, the positioning component includes a positioning block, the positioning block has a positioning groove, a connecting block is inserted into the positioning groove, and the connecting block is hinged to the connecting arm.

[0008] Preferably, the top of the positioning block is engaged with a top cover plate, the bottom of the top cover plate is fitted with a locking block, the bottom of the locking block is engaged with the positioning groove, and the top of the top cover plate is also provided with a handle.

[0009] Preferably, the connecting arm includes a connecting ring, and a plurality of parallel outer arm bodies are mounted on the bottom of the connecting ring. One end of each of the plurality of outer arm bodies is hinged to an adjacent connecting block, and a sliding arm is slidably connected to the end of each of the plurality of outer arm bodies away from the connecting block. The end of each of the plurality of sliding arms away from the outer arm body is hinged to a support component.

[0010] Preferably, a damping slider is installed on one end of the sliding arm inside the outer arm body, the damping slider is slidably connected to the inner wall of the outer arm body, a return spring is sleeved on one end of the sliding arm outside the outer arm body, and a first limiting plate is also installed on the end of the sliding arm away from the outer arm body.

[0011] Preferably, the angle adjusting component includes two positioning rings, which are respectively installed on both sides of the positioning block. The angle adjusting component also includes a positioning screw, one end of which passes through two positioning holes and a connecting ring in sequence. The positioning screw is also threaded with a positioning nut that cooperates with the positioning holes to fix the suspension position of the connecting arm.

[0012] Preferably, the support assembly includes a support frame, which is hinged to the connecting arm, and a plurality of parallel-arranged tilting wheels are mounted on the support frame.

[0013] Preferably, the support frame is equipped with a second limiting plate that cooperates with the first limiting plate.

[0014] Preferably, the multiple positioning holes on the positioning ring allow the adjustable angle range of the connecting arm to be a semi-circular arc.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The positioning component of this device adopts a detachable design. Simply removing the top cover plate from the positioning block allows for the insertion and removal of the connecting block, enabling quick installation or disassembly of the connecting arm. This design not only simplifies the cumbersome process of traditional bolt fixing but also facilitates flexible switching of the equipment under different working conditions. Furthermore, it reduces transportation and storage difficulties, effectively improving construction adaptability.

[0017] 2. The connecting arm and support assembly of this device adopt a gravity-adaptive drooping structure, providing dynamic auxiliary support when the excavator is traveling. When encountering bumpy roads, the vibration of the side-tilting wheels is transmitted to the sliding arm through the support frame, and the vibration energy is buffered by the synergistic action of the return spring and damping slider, significantly reducing the transmission to the machine body, thereby improving driving stability. In addition, the hinged design of the support frame and connecting arm, combined with the ° angle limit of the first and second limiting plates, ensures both flexible connection to adapt to complex terrain and prevents structural breakage caused by extreme swinging, thus balancing safety and durability.

[0018] 3. This device allows for flexible adjustment of the support component's position. Users can adjust the extension length of the boom according to terrain requirements and secure it via positioning screws through positioning holes and connecting rings, ensuring the auxiliary support is always in the optimal position. This design effectively solves the problem of traditional excavators easily tipping over in complex terrains such as slopes and soft soil. Furthermore, the split structure and lightweight materials reduce overall weight, further optimizing energy consumption and ease of operation. Overall, this anti-tipping structure significantly improves the excavator's safety and operational efficiency under harsh working conditions. Attached Figure Description

[0019] Figure 1 This is a first-person perspective view of the present invention.

[0020] Figure 2 This is a perspective view of the present invention from a second perspective;

[0021] Figure 3 This is a perspective view of the anti-tilt component in this utility model;

[0022] Figure 4 This is a three-dimensional exploded view of the anti-tilt component in this utility model;

[0023] Figure 5 This is a perspective view of the connecting arm in this utility model;

[0024] Figure 6 This is a perspective view of the support component in this utility model;

[0025] Figure 7 This is a partial cross-sectional view of the outer arm of this utility model.

[0026] In the diagram: 1. Excavator body; 2. Positioning assembly; 21. Top cover plate; 22. Locking block; 23. Connecting block; 24. Positioning block; 25. Positioning groove; 26. Handle; 3. Connecting arm; 31. Outer boom body; 32. Connecting ring; 33. Sliding arm; 34. First limiting plate; 35. Return spring; 36. Damping slider; 4. Angle adjustment component; 41. Positioning ring; 42. Positioning hole; 43. Positioning screw; 44. Positioning nut; 5. Support assembly; 51. Support frame; 52. Second limiting plate; 53. Side-tilting travel wheel. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-7 This utility model provides an excavator with an anti-rollover structure, including an excavator body 1. Positioning components 2 are installed on both sides of the cab of the excavator body 1. Connecting arms 3 are installed on the opposite sides of the two positioning components 2. Support components 5 for side auxiliary support of the excavator body 1 are installed on the ends of the two connecting arms 3 away from the positioning components 2.

[0029] The positioning component 2 is also equipped with an angle adjustment component 4 that works in conjunction with the support component 5 to prevent tilting.

[0030] In this embodiment, the positioning component 2 includes a positioning block 24, a positioning groove 25 is provided on the positioning block 24, a connecting block 23 is inserted into the positioning groove 25, and the connecting block 23 is hinged to the connecting arm 3; a top cover plate 21 is engaged with the top of the positioning block 24, a locking block 22 is installed at the bottom of the top cover plate 21, the bottom of the locking block 22 is engaged and fixed with the positioning groove 25, and a handle 26 is also provided at the top of the top cover plate 21.

[0031] Furthermore, positioning bolts are added at the contact point between the top cover plate 21 and the positioning block 24 to increase the overall rigidity, allowing for a detachable fixed connection between the top cover plate 21 and the positioning block 24.

[0032] The positioning component 2 can position the entire anti-tilt component, and the connecting arm 3 can be directly disassembled and installed as needed. It can be installed when the excavator body 1 moves to a mountain road or when there is a possibility of rollover, making it more convenient and flexible.

[0033] In this embodiment, the connecting arm 3 includes a connecting ring 32. A plurality of parallel outer arm bodies 31 are installed at the bottom of the connecting ring 32. One end of each of the plurality of outer arm bodies 31 is hinged to an adjacent connecting block 23. A sliding arm 33 is slidably connected to the end of each of the plurality of outer arm bodies 31 away from the connecting block 23. The end of each of the plurality of sliding arms 33 away from the outer arm body 31 is hinged to the support component 5. A damping slider 36 is installed on the end of the sliding arm 33 inside the outer arm body 31. The damping slider 36 is slidably connected to the inner wall of the outer arm body 31. A return spring 35 is sleeved on the end of the sliding arm 33 outside the outer arm body 31. A first limiting plate 34 is also installed on the end of the sliding arm 33 away from the outer arm body 31.

[0034] The connecting arm 3 is equipped with a support component 5 to provide lateral tilting assistance for the excavator body 1, and can be used with the angle adjustment component 4 to adjust the position and angle of the support.

[0035] In this embodiment, the angle adjustment component 4 includes two positioning rings 41, which are respectively installed on both sides of the positioning block 24. The angle adjustment component 4 also includes a positioning screw 43, one end of which passes through two positioning holes 42 and a connecting ring 32 in sequence. The positioning screw 43 is also threaded with a positioning nut 44 that cooperates with the positioning holes 42 to fix the suspension position of the connecting arm 3.

[0036] An angle adjustment component 4 is provided, which can cooperate with the connecting arm 3 to adjust the support angle of the support component 5. Multiple positioning holes 42 on the positioning ring 41 allow the adjustable angle range of the connecting arm 3 to be a semi-circular arc, and the adjusted angle can be adjusted according to the user's needs.

[0037] In this embodiment, the support component 5 includes a support frame 51, which is hinged to the connecting arm 3. Multiple parallel-arranged side-tilting wheels 53 are installed on the support frame 51, and a second limiting plate 52 that cooperates with the first limiting plate 34 is installed on the support frame 51.

[0038] The support component 5 is equipped to provide anti-tilt support while also allowing the excavator body 1 to continue moving instead of being stationary.

[0039] The working principle and usage process of this utility model are as follows: When using this device, firstly, in the positioning component 2 on the side of the excavator body 1, after canceling the fixed connection between the top cover plate 21 and the positioning block 24, the connecting block 23 is pulled out. Then, the connecting block 23 connected to multiple outer arm bodies 31 is inserted into the positioning groove 25 of the positioning block 24. After resetting the top cover plate 21, the top cover plate 21 and the positioning block 24 are fixed, thus realizing the installation of the connecting arm 3.

[0040] After the connecting arm 3 is installed, the connecting arm 3 and the support assembly 5 naturally droop under the action of gravity, which can provide an auxiliary walking effect when the excavator body 1 is walking. At this time, when the roadside is bumpy, the side-tilting wheel 53 will rotate and vibrate through the support frame 51 to the sliding arm 33. With the support of the return spring 35, the sliding arm 33 drives the damping slider 36 to slide inside the outer arm body 31, maintaining auxiliary support while reducing the vibration transmitted from the support assembly 5 to the excavator body 1, increasing driving stability. Furthermore, the support frame 51 and the connecting arm 3 are hinged, which can flexibly connect even on uneven road surfaces, preventing the connection between the sliding arm 33 and the support assembly 5 from breaking. While the connection is flexible, the first limiting plate 34 and the second limiting plate 52 cooperate to limit the support frame 51 to move only within a 45-degree angle range, that is, maintaining a flexible connection while achieving a relatively stable support effect at the extreme position.

[0041] When it is necessary to adjust the auxiliary support position of the connecting arm 3 and the support component 5 according to the terrain, after adjusting the position of multiple outer arm bodies 31, the positioning screw 43 is passed through the positioning hole 42 of one positioning ring 41, the connecting ring 32 and the corresponding positioning hole 42 on another positioning ring 41 in sequence, so as to fix the position of the connecting arm 3.

[0042] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0043] 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An excavator with a roll-over prevention structure, comprising an excavator body (1), characterized by: Positioning components (2) are installed on both sides of the cab of the excavator body (1). A connecting arm (3) is installed on the opposite side of the two positioning components (2). A side auxiliary support component (5) for the excavator body (1) is installed on the end of the two connecting arms (3) away from the positioning components (2). The positioning component (2) is also equipped with an angle adjustment component (4) that works in conjunction with the anti-tilt angle adjustment support component (5).

2. The excavator with a roll-over prevention structure according to claim 1, characterized in that: The positioning component (2) includes a positioning block (24), a positioning groove (25) is provided on the positioning block (24), a connecting block (23) is inserted into the positioning groove (25), and the connecting block (23) is hinged to the connecting arm (3).

3. An excavator with an anti-rollover structure according to claim 2, characterized in that: The top of the positioning block (24) is engaged with a top cover plate (21), and a locking block (22) is installed at the bottom of the top cover plate (21). The bottom of the locking block (22) is engaged with the positioning groove (25). A handle (26) is also provided on the top of the top cover plate (21).

4. The excavator with a roll-over prevention structure according to claim 2, characterized in that: The connecting arm (3) includes a connecting ring (32). Multiple parallel outer arm bodies (31) are installed at the bottom of the connecting ring (32). One end of each of the multiple outer arm bodies (31) is hinged to the adjacent connecting block (23). A sliding arm (33) is slidably connected to the end of each of the multiple outer arm bodies (31) away from the connecting block (23). The end of each of the multiple sliding arms (33) away from the outer arm body (31) is hinged to the support assembly (5).

5. The excavator with a roll-over prevention structure according to claim 4, characterized in that: A damping slider (36) is installed on one end of the sliding arm (33) inside the outer arm body (31). The damping slider (36) is slidably connected to the inner wall of the outer arm body (31). A return spring (35) is sleeved on one end of the sliding arm (33) outside the outer arm body (31). A first limiting plate (34) is also installed on the end of the sliding arm (33) away from the outer arm body (31).

6. The excavator with a roll-over prevention structure according to claim 2, characterized in that: The angle adjustment component (4) includes two positioning rings (41), which are respectively installed on both sides of the positioning block (24). The angle adjustment component (4) also includes a positioning screw (43), one end of which passes through two positioning holes (42) and a connecting ring (32) in sequence. The positioning screw (43) is also threaded with a positioning nut (44) that matches the positioning hole (42) to fix the suspension position of the connecting arm (3).

7. The excavator with a roll-over prevention structure according to claim 6, characterized in that: The support assembly (5) includes a support frame (51) which is hinged to the connecting arm (3) and a plurality of parallel side-tilting wheels (53) are mounted on the support frame (51).

8. The excavator with a roll-over prevention structure according to claim 7, characterized in that: The support frame (51) is equipped with a second limiting plate (52) that cooperates with the first limiting plate (34).

9. An excavator with an anti-rollover structure according to claim 7, characterized in that: The multiple positioning holes (42) on the positioning ring (41) allow the adjustable angle range of the connecting arm (3) to be a semi-circular arc.