Anti-rollover device of engine

Abstract

The utility model provides an anti-rollover device for an engine, which comprises a main body structure connected with a mounting foundation; the bearing structure is rotatably connected with the main body structure, the bearing structure has a bearing state in which the bearing structure moves towards one side of the main body structure and a non-bearing state in which the bearing structure is reset to an initial position from the bearing state, and the bearing structure is arranged adjacent to the engine roller way; the bearing structure is used for bearing the engine which turns over from one side of the engine roller way; when the bearing structure bears the engine, the bearing structure is in a bearing state, and when the bearing structure is separated from the engine, the bearing structure is reset to the initial position. The problem that in the prior art, the safety of an engine on an assembly line is poor is solved.

Description

Technical Field

[0001] The utility model relates to the field of engine complete machine assembly lines, and in particular to an engine anti-rollover device. Background Art

[0002] The engine assembly line often encounters accidents where the engine rolls over to the outside of the roller conveyor during automatic processing at a turning or turning station due to positioning deviation of the engine tray, equipment failure, or human error.

[0003] After a rollover accident occurs, the engine falls directly to the ground, which may cause economic losses such as damage to engine parts, equipment, protection, and ground, or even casualties.

[0004] In order to avoid such accidents and losses, the current method is to strengthen personnel observation. However, due to the high risk factor, personnel cannot inspect closely. Even if problems are found, it is difficult to prevent accidents and losses by relying on manpower. Utility Model Content

[0005] The main purpose of the utility model is to provide an engine anti-rollover device to solve the problem of poor safety of engines on an assembly line in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an engine anti-rollover device is provided, including: a main structure, the main structure is connected to a mounting base; a supporting structure, the supporting structure is rotatably connected to the main structure, the supporting structure has a supporting state moving toward one side of the main structure, and the supporting structure has a non-supporting state when it is reset to an initial position from the supporting state, the supporting structure is arranged adjacent to the engine roller, and the supporting structure is used to support the engine that rolls over from one side of the engine roller; wherein, when the supporting structure supports the engine, the supporting structure is in a supporting state, and when the supporting structure is detached from the engine, the supporting structure is reset to the initial position.

[0007] Furthermore, the engine anti-rollover device includes a damping device, which includes: a damper, at least one damper, one end of the damper is connected to the supporting structure, and the other end of the damper is connected to the main structure, the damper is used to provide resistance to the supporting structure in the opposite direction of movement when the supporting structure is in a supporting state, and the damper is used to reset the supporting structure to its initial position when the supporting structure exits the supporting state.

[0008] Furthermore, the connection between the supporting structure and the main structure forms a connecting end, the end of the supporting structure away from the main structure forms a free end, and the damper is connected to a middle position between the connecting end and the free end.

[0009] Furthermore, the engine anti-rollover device also includes: a travel switch, the travel switch is connected to the main structure, and the contact end of the travel switch abuts against the supporting structure, wherein, when the supporting structure is in the supporting state, the supporting structure drives the contact end to move along a preset stroke to make the travel switch enter the triggering state.

[0010] Furthermore, the engine anti-rollover device also includes: an emergency action component; a controller, the controller is electrically connected to the limit switch, and the controller is electrically connected to the emergency execution device. The controller is used to control the emergency action component to execute an alarm action and an equipment shutdown action when the limit switch is in a triggered state.

[0011] Furthermore, the main structure includes: a first main body, the first main body is a ring-shaped frame structure, and the first main body is connected to the installation base; a second main body, one end of the second main body is connected to the first main body, and the other end of the second main body is extended in a direction away from the installation base, and the supporting structure is rotatably connected to the end of the second main body away from the first main body.

[0012] Furthermore, the engine anti-rollover device also includes: an installation fixture, the installation fixture is connected to the first main body, the installation fixture is connected to the installation base, there are multiple installation fixtures, and the multiple installation fixtures are respectively arranged at multiple corners on the inner side of the first main body.

[0013] Furthermore, a reinforcing rib structure is provided between the first main body and the second main body.

[0014] Furthermore, a hollow structure is formed at one end of the second main body close to the first main body, and the connecting end of the reinforcing rib structure and the second main body is arranged adjacent to the top of the hollow structure, and the connecting end of the reinforcing rib structure and the first main body is located on the edge of the first main body farthest from the second main body.

[0015] Furthermore, a movement angle is formed between the initial position of the supporting structure and the extreme position of the supporting structure moving toward one side of the main structure, and the movement angle is A, wherein 50°≥A≥45°.

[0016] By applying the technical solution of the present invention, a supporting structure is provided to support an engine that has overturned from one side of an engine roller conveyor, and the supporting structure can be reset to its initial position when detached from the engine. The utility model is suitable for use in automatic processing stations on an engine assembly line where engine overturning accidents are prone to occur. When an engine overturning accident occurs, the overturned engine can be supported to ensure that the engine does not fall to the ground after the engine overturning accident occurs, and all kinds of losses are reduced to zero. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 FIG2 shows a schematic structural diagram of a first embodiment of an engine anti-rollover device according to the present utility model;

[0019] Figure 2 FIG2 shows a schematic structural diagram of a second embodiment of an engine anti-rollover device according to the present utility model;

[0020] Figure 3 FIG2 shows a schematic structural diagram of a third embodiment of an engine anti-rollover device according to the present utility model;

[0021] Figure 4 FIG2 shows a schematic structural diagram of a fourth embodiment of an engine anti-rollover device according to the present utility model;

[0022] Figure 5 A structural schematic diagram of a fifth embodiment of an engine anti-rollover device according to the present utility model is shown.

[0023] The above drawings include the following reference numerals:

[0024] 11. Main structure; 12. Reinforcement rib structure; 13. Mounting fixtures; 14. Hinge;

[0025] 21. Support structure; 22. Damper; 23. Travel switch. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of this application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0030] The engine is a core component of modern motor vehicles, responsible for converting fuel energy into mechanical energy to propel the vehicle. Engines are found in vehicles like cars, airplanes, and ships, and while their types and principles vary, their fundamental functions remain the same. An engine typically consists of a combustion chamber, cylinders, pistons, and a crankshaft. Through either an internal combustion engine or an external combustion engine, it converts the high-temperature, high-pressure gas energy generated by fuel combustion into mechanical motion.

[0031] Engine roller tables are essential equipment in automotive manufacturing plants, used to transport, install, and test engines on the production line. They are a critical component of the production process, improving efficiency, reducing costs, and ensuring quality and safety during engine assembly.

[0032] An engine roller conveyor typically consists of a series of rolling bearing rollers and support structures, installed on the floor of the manufacturing workshop and arranged along the assembly line path to form a continuous conveyor system. During assembly, the engine is placed on the roller conveyor and rolls along the roller conveyor using its own gravity or auxiliary devices, and can be fixed, adjusted, or tested as needed.

[0033] As engines rotate through different workstations on the engine roller conveyor, they are prone to tipping over. As precision components, a fall to the ground can damage engine components. To address this issue, existing technologies typically employ stoppers on the engine roller conveyor to prevent the engine from falling off the track. However, this solution is ineffective and fails to fully protect the engine.

[0034] Combine Figures 1 to 5 As shown, according to a specific embodiment of the present application, an engine anti-rollover device is provided.

[0035] The engine anti-rollover device includes: a main structure 11, which is connected to a mounting base; a supporting structure 21, which is rotatably connected to the main structure 11, and the supporting structure 21 has a supporting state in which it moves toward one side of the main structure 11, and a non-supporting state in which the supporting structure 21 is reset to an initial position from the supporting state. The supporting structure 21 is arranged adjacent to the engine roller way, and the supporting structure 21 is used to support an engine that has overturned from one side of the engine roller way; wherein, when the supporting structure 21 supports the engine, the supporting structure 21 is in a supporting state, and when the supporting structure 21 is separated from the engine, the supporting structure 21 is reset to the initial position.

[0036] By applying the technical solution of the present invention, a supporting structure 21 is provided to support an engine that has overturned from one side of an engine roller conveyor, and the supporting structure 21 can be reset to its initial position when detached from the engine. The utility model is suitable for use in automatic processing stations on an engine assembly line where engine overturning accidents are prone to occur. When an engine overturning accident occurs, the overturned engine can be supported to ensure that the engine does not fall to the ground after the engine overturning accident occurs, and all kinds of losses are reduced to zero.

[0037] When the supporting structure 21 is separated from the engine, the supporting structure 21 can be restored to its initial position by the following scheme: 1. A spring is provided on the side of the supporting structure 21 facing away from the engine. The spring is compressed when it carries the engine, and the spring returns to its initial state when it does not carry the engine; 2. A telescopic cylinder is provided on the side of the supporting structure 21 facing away from the engine, and the PLC control program controls whether the telescopic cylinder is ejected to restore the supporting structure 21 to its initial state; 3. A magnetic field excitation device such as an electromagnetic coil is provided on the side of the supporting structure 21 facing away from the engine, and another magnetic field excitation device is provided on the main structure. By controlling the working status of the two magnetic field excitation devices, the supporting structure 21 is restored to its initial position by magnetic force.

[0038] Furthermore, the engine rollover prevention device includes a damping device, which includes: a damper 22, at least one of which is connected to the supporting structure 21 at one end and to the main structure 11 at the other end. The damper 22 is used to provide resistance to the supporting structure 21 in the opposite direction of movement when the supporting structure 21 is in the supporting state, and the damper 22 is used to reset the supporting structure 21 to its initial position when the supporting structure 21 exits the supporting state. The damper can not only play a supporting and buffering role, but also reset the supporting structure 21 to its initial position, thereby improving the automation level of the device.

[0039] Damping devices are common mechanical devices used to reduce or eliminate vibration, shock, or transient motion in mechanical systems. These devices are widely used in various mechanical systems, including vehicles, building structures, and construction machinery, to improve system stability, safety, and performance.

[0040] General damping devices usually include the following types:

[0041] (1) Hydraulic damper: A hydraulic damper uses the viscous resistance of a fluid to dissipate energy, thereby reducing the amplitude of vibration or movement. It consists of a hydraulic cylinder, a piston, and a fluid, and achieves a damping effect through the flow resistance of the fluid within the cylinder. Hydraulic dampers are commonly used in vehicle suspension systems, hydraulic buffers, and other fields.

[0042] (2) Friction damper: A friction damper absorbs energy through friction between two or more surfaces, thereby reducing the amplitude of vibration or movement. It is usually composed of a friction plate, a pressure plate, and a spring. The damping effect is changed by adjusting the contact force between the friction plates. Friction dampers are commonly used in vehicle braking systems, mechanical vibration systems, and other fields.

[0043] (3) Air damper: An air damper uses the compression and expansion of gas to absorb energy, thereby reducing the amplitude of vibration or movement. It consists of an air cylinder, a piston, and a damping hole. The damping effect is changed by adjusting the flow resistance of the air. Air dampers are commonly used in building structure shock absorption systems, air suspension systems, and other fields.

[0044] (4) Spring damper: A spring damper uses the deformation of a spring to absorb energy, thereby reducing the amplitude of vibration or movement. It is usually composed of a spring, a damping material, and a supporting structure. The damping effect is changed by adjusting the stiffness of the spring and the energy dissipation of the damping material. Spring dampers are commonly used in mechanical vibration systems, vehicle suspension systems, and other fields.

[0045] In this application, due to the large mass of the engine, the damper is preferably a hydraulic damper.

[0046] Furthermore, the connection between the support structure 21 and the main structure 11 forms a connecting end, the end of the support structure 21 away from the main structure 11 forms a free end, and the damper 22 is connected to the middle position between the connecting end and the free end. This solution is conducive to improving the smoothness of the overall movement of the support structure 21.

[0047] like Figure 1 Two dampers 22 are shown in FIG. 2 , and the two dampers 22 are respectively located on both sides of the supporting structure 21 in the width direction.

[0048] Furthermore, the engine rollover prevention device also includes a travel switch 23 connected to the main structure 11. The contact end of the travel switch 23 abuts the supporting structure 21. When the supporting structure 21 is in the supporting state, the supporting structure 21 drives the contact end to move along a preset stroke, thereby triggering the travel switch 23. The travel switch 23 can send a signal to other components to execute processing actions when the supporting structure 21 is in the supporting state, that is, when the engine rolls over.

[0049] A limit switch is an electrical switching device used to detect the position or travel of machinery or equipment and trigger corresponding circuit action by changing the state of electrical contacts. Although its structure and principle are relatively simple, it plays a key role in fields such as automation control and safety protection.

[0050] Generally speaking, the structure of a travel switch includes the following main parts:

[0051] (1) Trigger mechanism: The trigger mechanism is the core component of the travel switch, responsible for detecting the movement position or travel of the machine or equipment. It is usually composed of one or more mechanical arms, rocker arms, or movable devices. When it is subjected to external force or moves to a specific position, it triggers the action of the travel switch.

[0052] (2) Electrical contacts: Electrical contacts are the output part of a travel switch, used to change the on / off state of a circuit. When an external force acts on the trigger mechanism, the electrical contacts open and close, thereby triggering the corresponding circuit action. Electrical contacts can be of different types, such as normally open, normally closed, or double-pole double-throw.

[0053] (3) Housing: The housing is the protective shell of the limit switch, which is used to protect the internal trigger mechanism and electrical contacts from interference and damage from the external environment. The housing is usually made of metal or plastic materials and has a certain degree of durability and protection.

[0054] Working principle: The working principle of the limit switch is based on the interaction between mechanical triggering and electrical control, which can usually be simply described as the following steps:

[0055] S1, mechanical triggering: When the machine or device being detected moves to a specific position or stroke (ie, the supporting structure 21 drives the contact end to move along a preset stroke), the trigger mechanism will be acted upon by an external force, causing the trigger mechanism to operate.

[0056] S2, Electrical Control: The action of the trigger mechanism causes the electrical contacts within the limit switch to open and close. In a normally open limit switch, when the trigger mechanism is actuated, the electrical contacts close, breaking the circuit path. In a normally closed limit switch, the opposite occurs. This change in state triggers the corresponding circuit action.

[0057] S3, circuit action: The state change of the limit switch will trigger the corresponding circuit action, such as starting or stopping the engine roller, etc. In this way, the limit switch can detect and control the position or stroke of the machine or equipment.

[0058] Furthermore, the engine anti-rollover device also includes: an emergency action component; a controller, the controller is electrically connected to the limit switch 23, and the controller is electrically connected to the emergency execution device. The controller is used to control the emergency action component to execute an alarm action and an equipment shutdown action when the limit switch 23 is in a triggered state.

[0059] Alarm actions include sound, light, etc. Equipment shutdown action means the engine roller table stops running.

[0060] After the controller triggers the alarm, it can also coordinate with other equipment on the production line to take the following measures to prevent rollover from happening again:

[0061] Dynamic Stability Control: Maintains the engine's balance by adjusting the transmission, support bracket, or fixture on the assembly line to reduce tilt and shaking during installation.

[0062] Real-time monitoring and alarm system: Equipped with devices such as tilt sensors and vibration sensors, it can monitor the status of the engine in real time and immediately issue an alarm when abnormal tilt or shaking is detected, reminding staff to take timely measures.

[0063] Automatic adjustment device: Automatically adjusts the speed or position of the assembly line based on the monitored engine status to avoid rollover or other unexpected situations during the engine assembly process.

[0064] Emergency Stop System: Automatically triggers an emergency stop of the production line when the engine tilts or shakes severely to prevent further damage or injury.

[0065] The coordinated use of the above-mentioned system and the anti-rollover device can not only improve the safety and stability of the production line, but also help reduce failures and downtime in the production process and improve production efficiency.

[0066] like Figure 1 As shown, the main structure 11 includes a first main member, which is a ring-shaped frame structure and is connected to the mounting base; a second main member, one end of which is connected to the first main member and the other end of which extends away from the mounting base; and a support structure 21 rotatably connected to the end of the second main member away from the first main member. This arrangement ensures a stable structure for the engine rollover prevention device, effectively supporting the engine and preventing it from being hit by the engine. Figure 1 The hinge 14 is also shown.

[0067] like Figure 4 As shown, the engine rollover prevention device also includes a mounting fixture 13 connected to the first main member, which is then connected to the mounting base. Multiple mounting fixtures 13 are provided, each corresponding to a plurality of corners on the inner side of the first main member. This solution effectively improves the stability of the connection between the engine rollover prevention device and the mounting base.

[0068] The installation base can be the ground or a mounted workbench.

[0069] To further enhance the strength of the device, a reinforcing rib structure 12 is provided between the first main body and the second main body.

[0070] Furthermore, a hollow structure is formed at one end of the second main member near the first main member. The connection end of the reinforcing rib structure 12 with the second main member is located adjacent to the top of the hollow structure. The connection end of the reinforcing rib structure 12 with the first main member is located on the side of the first main member farthest from the second main member. The hollow structure can reduce the cost of the device. The use of the reinforcing rib structure 12 allows the second main member and the first main member to form a stable triangular structure, which has a beneficial effect on improving the strength of the main structure 11.

[0071] Furthermore, the angle of motion between the initial position of the support structure 21 and the extreme position of the support structure 21 moving toward the main structure 11 is A, where 50° ≥ A ≥ 45°. This arrangement allows the support structure 21 to provide a certain degree of cushioning for the engine while also effectively supporting it.

[0072] In an optional embodiment, four mounting fixtures 13 are welded in the square frame on the side of the main structure 11 in contact with the ground, and are firmly connected to the ground through expansion bolts. At the same time, two reinforcing rib structures are welded on the main structure 11. The above structure ensures that the main frame has good stability.

[0073] The main structure 11 and the support structure 21 are connected by two hinges 14. Two dampers 22 are installed inside the support structure 21. The angle between the main structure 11 and the support structure 21 is 45-50 degrees. This structure ensures that in the event of an engine rollover, the engine is supported by the support structure 21 in a cushioning manner, preventing damage to engine parts caused by rigid support. Furthermore, after the rollover accident is resolved, the support structure 21 is guaranteed to return to its normal position.

[0074] A limit switch 23 is also provided between the main structure 11 and the supporting structure 21. The switch status can be connected to the equipment PLC control program. When an engine rollover accident occurs, the supporting structure 21 is pressed down and the limit switch 23 sends a signal, forming an alarm and equipment shutdown function.

[0075] Installation method and working principle of this device:

[0076] Before installation, move the entire device to the outside of the roller conveyor at the automated processing station. Adjust the edge of the support structure 21 to maintain an 8-14 cm gap with the roller conveyor edge. Position the entire device in the center of the equipment. Once the position is determined, use expansion bolts to secure it to the ground using the four holes on the mounting fixture 13.

[0077] If an engine at a workstation equipped with this device were to overturn, it would fall toward the device's support structure 21. Support structure 21 is supported by two dampers 22, which cushion the overturned engine. Because dampers 22 are compressed by external forces exerting pressure on support structure 21, the triggering state of limit switch 23 changes. The signal from limit switch 23 is transmitted to the device's PLC, triggering an alarm and shutting down the device.

[0078] After the rollover accident is handled, the device can achieve mechanical automatic reset due to the action of the damper 22.

[0079] This device has the following functions:

[0080] 1. Support for overturned engines: When the engine overturns at the workstation where the device is installed, the device can effectively support the engine to prevent it from falling off the pallet and roller to the ground, thus avoiding losses.

[0081] 2. Alarm and shutdown after rollover: When the engine rollover accident has occurred and this device has effectively supported the engine, a command is sent to the PLC control program through this device to make the equipment generate an alarm, alerting relevant personnel to check, and the equipment will stop and wait.

[0082] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0083] This solution has a simple structure and is easy to install, making it suitable for automated machining stations on engine production lines prone to engine rollover accidents. In the event of an engine rollover, this device can support the overturned engine, triggering an alarm to stop the machine tool and await further action. This device ensures that the engine does not fall to the ground in the event of a rollover, minimizing all losses.

[0084] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0085] In addition to the above, it should be noted that references to "one embodiment," "another embodiment," "an embodiment," and the like in this specification refer to specific features, structures, or characteristics described in conjunction with that embodiment as being included in at least one embodiment generally described in this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in conjunction with any embodiment, it is intended that such feature, structure, or characteristic, when implemented in conjunction with other embodiments, also fall within the scope of the present invention.

[0086] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0087] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An engine anti-rollover device, characterized in that: include: A main structure (11), wherein the main structure (11) is connected to the installation base; A supporting structure (21), the supporting structure (21) is rotatably connected to the main structure (11), the supporting structure (21) has a supporting state in which it moves toward one side of the main structure (11), and the supporting structure (21) has a non-supporting state when it is reset from the supporting state to an initial position, the supporting structure (21) is arranged adjacent to the engine roller, and the supporting structure (21) is used to support the engine that has overturned from one side of the engine roller; Wherein, when the supporting structure (21) carries the engine, the supporting structure (21) is in the supporting state; when the supporting structure (21) is separated from the engine, the supporting structure (21) is reset to the initial position.

2. The engine rollover prevention device according to claim 1, characterized in that: The engine anti-rollover device includes a damping device, and the damping device includes: A damper (22), wherein there is at least one damper (22), one end of the damper (22) is connected to the supporting structure (21), and the other end of the damper (22) is connected to the main structure (11), the damper (22) is used to provide the supporting structure (21) with resistance in the opposite direction of movement when the supporting structure (21) is in the supporting state, and the damper (22) is used to reset the supporting structure (21) to an initial position when the supporting structure (21) exits the supporting state.

3. The engine rollover prevention device according to claim 2, characterized in that: The connection between the supporting structure (21) and the main structure (11) forms a connecting end, the end of the supporting structure (21) away from the main structure (11) forms a free end, and the damper (22) is connected to a middle position between the connecting end and the free end.

4. The engine rollover prevention device according to claim 1, characterized in that: The engine anti-rollover device further comprises: A travel switch (23), wherein the travel switch (23) is connected to the main structure (11), and a contact end of the travel switch (23) abuts against the supporting structure (21), wherein when the supporting structure (21) is in the supporting state, the supporting structure (21) drives the contact end to move along a preset stroke, so that the travel switch (23) enters a triggering state.

5. The engine rollover prevention device according to claim 4, characterized in that: The engine anti-rollover device further comprises: Emergency action components; A controller is electrically connected to the travel switch (23), and the controller is electrically connected to the emergency action component. The controller is used to control the emergency action component to perform an alarm action and an equipment shutdown action when the travel switch (23) is in the trigger state.

6. The engine rollover prevention device according to claim 1, characterized in that: The main structure (11) comprises: a first main body, wherein the first main body is an annular frame structure and is connected to the installation base; A second main body, one end of the second main body is connected to the first main body, the other end of the second main body is extended in a direction away from the installation base, and the supporting structure (21) is rotatably connected to the end of the second main body away from the first main body.

7. The engine rollover prevention device according to claim 6, characterized in that: The engine anti-rollover device further comprises: A mounting fixture (13), wherein the mounting fixture (13) is connected to the first main body, and the mounting fixture (13) is connected to the mounting base. There are multiple mounting fixtures (13), and the multiple mounting fixtures (13) are respectively arranged at multiple corners on the inner side of the first main body.

8. The engine rollover prevention device according to claim 6, characterized in that: A reinforcing rib structure (12) is provided between the first main body and the second main body.

9. The engine rollover prevention device according to claim 8, characterized in that: A hollow structure is formed at one end of the second main body close to the first main body, and the connecting end of the reinforcing rib structure (12) and the second main body is arranged adjacent to the top of the hollow structure. The connecting end of the reinforcing rib structure (12) and the first main body is located on the edge of the first main body farthest from the second main body.

10. The engine rollover prevention device according to claim 1, characterized in that: A movement angle is formed between the initial position of the supporting structure (21) and the extreme position of the supporting structure (21) moving toward one side of the main structure (11), and the movement angle is A, wherein 50°≥A≥45°.

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