Harvester lighting device with automatic rebound protection function

Abstract

The utility model relates to a harvester lighting lamp device with automatic rebound protection function belongs to the field of agricultural machinery protection, aims at solving the technical problem that the existing lighting lamp rigid installation is easy to crash, has no early warning function. The device contains lamp mounting seat, lighting lamp, tension spring, screw rod with silk, screw rod mounting seat and buzzer alarm. The lighting lamp is installed in the lamp mounting seat, and the lamp mounting seat is hinged with the screw rod mounting seat through the screw rod with silk, can rotate to the inside of the frame, and the tension spring provides the reset force. When encountering slight collision, the lighting lamp automatically avoids and rebounds, when encountering big impact, the lamp mounting seat drives the pressing plate to trigger the buzzer alarm. The utility model significantly improves the service life of the lighting lamp, reduces the maintenance cost, has the collision early warning function, guarantees the night work safety and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery protection technology, and in particular to a harvester lighting device with automatic rebound protection function. Background Technology

[0002] Harvesters are essential equipment in modern agricultural harvesting operations, and they often need to operate continuously at night or in low-light conditions. Therefore, the reliability and durability of the lighting system are crucial. Currently, most harvester lights are rigidly mounted, meaning the light body is directly fixed to the corresponding position on the frame using bolts or other fasteners.

[0003] During actual harvester operation, the field environment is complex, and the lights are highly susceptible to collisions with obstacles such as straw and branches. Due to the lack of buffering and protection mechanisms in existing installation methods, the lights themselves are prone to breakage upon impact, and the impact force often causes deformation and damage to surrounding installation structures, severely affecting the lifespan of the lights and the overall safety of the machine. Furthermore, existing technology lacks effective alarm and warning functions; when the lights suffer significant impacts, the operator may not immediately notice, and continued operation could lead to more serious mechanical damage, even affecting nighttime harvesting progress and causing economic losses for the user.

[0004] The existing harvester lighting devices have the following main shortcomings:

[0005] 1. Poor impact resistance and easy damage: The rigid installation structure cannot effectively buffer external forces, and the lifespan of the lighting fixtures and accessories is short under frequent collisions, resulting in high maintenance costs.

[0006] 2. There are operational safety risks: Damaged lights will directly affect nighttime harvesting operations, which will not only increase operational risks, but may also delay farming due to machine downtime for repairs, thus affecting income.

[0007] 3. Lack of early warning mechanism: The existing device does not integrate an alarm function, so the driver cannot be notified in time when the lights are subjected to excessive external force and take countermeasures, which can easily lead to secondary damage or failure of the whole machine.

[0008] Therefore, there is an urgent need for a lighting protection device that can automatically buffer collision forces, achieve rebound and reset, and promptly sound an alarm when encountering a major impact, so as to improve the adaptability and reliability of harvesters under harsh working conditions. Utility Model Content

[0009] The purpose of this invention is to overcome the problems in the prior art and provide a harvester lighting device with automatic rebound protection function.

[0010] The core solution of this utility model is a harvester lighting device with automatic rebound and alarm functions. It works in concert through a rotatable hinged lamp mounting base, a tension spring providing reset force, and a buzzer alarm. In the event of a minor collision, the lamp base can rotate to avoid the impact and automatically reset; in the event of a major impact, the lamp base deflects at an angle large enough to trigger the alarm, alerting the driver to intervene. This achieves dynamic, graded protection for the lighting, significantly improving its service life and operational safety.

[0011] To achieve the above-mentioned utility model objectives, the technical solution adopted by this utility model is as follows: a harvester lighting device with automatic rebound protection function, including a rear beam of the frame and a lighting lamp, and also including a lamp mounting base, a tension spring, a threaded screw, a screw mounting base and a buzzer alarm;

[0012] The lighting lamp is mounted on the lamp mounting base by lighting lamp fasteners;

[0013] The lamp mounting bracket is movably mounted to the rear beam of the vehicle frame via a hinge structure, and can rotate around the hinge point toward the inside of the rear beam of the vehicle frame.

[0014] The tension spring is provided between the lamp mounting bracket and the rear beam of the frame to provide an elastic tension force to reset the lamp mounting bracket;

[0015] The lamp mounting bracket is equipped with a trigger, and the buzzer alarm is located on the rear beam of the vehicle frame. When the lamp mounting bracket is rotated to a set angle, the trigger triggers the buzzer alarm to sound an alarm.

[0016] Furthermore, the hinge structure includes a screw mounting base fixedly mounted on the rear beam of the vehicle frame. Extension plates are fixedly installed on the upper and lower sides of the right end of the lamp mounting base, respectively. The threaded screw passes sequentially through the lower extension plate, the lower end of the screw mounting base, the upper extension plate, and the upper end of the screw mounting base. Self-locking nuts are screwed onto both ends of the threaded screw, and these nuts are in a loose state, allowing the lamp mounting base to rotate around the threaded screw. This hinge method effectively solves the problem of easy damage caused by the rigid connection between the lighting lamp and the vehicle frame, achieving the goal of free and flexible rotation of the lamp mounting base under external force, and providing a structural basis for buffering and obstacle avoidance.

[0017] Furthermore, the screw mounting base has an arc-shaped structure and is fixed to the rear beam of the vehicle frame by bolts. This arc-shaped structure provides the necessary rotation space to solve the problem of structural interference between the lamp mounting base and its extension plate and the mounting base during rotation, ensuring smooth and unobstructed rotation.

[0018] Furthermore, a first connecting plate is fixed to one end of the lamp mounting bracket near the hinge point, and a second connecting plate is fixed to the rear beam of the vehicle frame. The two ends of the tension spring are respectively hooked onto the first and second connecting plates. This hooking structure solves the problem of providing a stable and reliable reset force for the lamp mounting bracket. The tension of the spring allows the lamp mounting bracket to automatically spring back to its initial working position after the external force disappears, achieving dynamic avoidance and automatic reset functions.

[0019] Furthermore, the trigger is a pressure plate fixedly mounted on the lamp mounting bracket, and the buzzer alarm is a buzzer with a mechanical trigger switch, mounted on the rear beam of the vehicle frame. The pressure plate and the trigger switch of the buzzer alarm maintain a gap in the initial state. This design solves the technical problem of how to promptly alert the driver when the headlight suffers a significant impact. Through a simple mechanical triggering method, an overload alarm function is achieved, effectively preventing secondary damage caused by the driver's lack of awareness.

[0020] Furthermore, the tension spring is initially in a slightly stretched state, allowing the lamp mounting bracket to fit snugly against the rear beam of the vehicle frame when no external force is applied. This pre-stretched state solves the problem of ensuring that the lamp remains stably in its normal lighting position when no external force is applied, preventing lamp body swaying due to vibration during vehicle operation and ensuring the stability of the basic lighting function.

[0021] Furthermore, the lighting can be replaced with a camera or a rearview mirror. This solution overcomes the limitation of protecting only the lighting, solves the problem that other vulnerable accessories on the harvester (such as cameras and rearview mirrors) also need protection, and expands the versatility and application value of this protective device.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The most significant advantage of this invention lies in its unique dynamic rebound structure, which fundamentally solves the persistent problem of harvester lights being easily damaged due to rigid installation. Through a hinge mechanism consisting of a threaded screw, a self-locking nut, and an extension plate, the light mounting base can flexibly rotate inwards towards the frame when impacted by external forces such as straw and branches in the field, effectively buffering and avoiding impact. Simultaneously, the continuous restoring force provided by the tension spring ensures that once the external force disappears, the light automatically and accurately rebounds to its initial illumination position. This "avoidance-rebound" mechanism achieves dynamic balance with complex operating environments, transforming accidental and repetitive collisions into harmless mechanical oscillations, thereby greatly extending the service life of the light and its auxiliary structural components, and significantly reducing user maintenance costs and downtime.

[0024] 2. The integrated overload alarm function of this device forms a second line of defense for active safety, greatly improving the reliability and safety of the entire machine's operation. When the lighting fixture suffers a major impact sufficient to cause structural damage, a large-angle rotation of the lamp mounting bracket will drive the pressure plate to trigger the buzzer alarm, promptly issuing an audible and visual warning to the driver. This design effectively solves the problem of drivers being unable to detect potential dangers in noisy working environments, allowing them to stop immediately for inspection and avoid secondary accidents caused by continued operation, such as complete damage to the lighting fixture or even damage to other parts of the vehicle. This not only ensures the smooth operation of critical nighttime harvesting operations but also protects asset safety through timely warnings of major risks, preventing users from suffering greater economic losses. Attached Figure Description

[0025] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0026] Figure 1 This is a schematic diagram of the present invention when it is not subjected to external force.

[0027] Figure 2 This is a schematic diagram of the present invention under external force.

[0028] The attached figures are labeled as follows: 1. Lamp mounting bracket; 2. Lighting lamp; 3. Tension spring; 4. Lighting lamp fastener; 5. Threaded screw; 6. Buzzer alarm; 7. Rear beam of the frame; 8. Self-locking nut; 9. Bolt; 10. Screw mounting bracket; 11. First connecting plate; 12. Second connecting plate; 13. Extension plate; 14. Pressure plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0030] Example

[0031] like Figure 1 and Figure 2 As shown in the figure, this embodiment provides a harvester lighting device 2 with automatic rebound protection function, belonging to the field of agricultural machinery technology. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] The device mainly consists of a lamp mounting base 1, a lamp 2, a tension spring 3, fasteners for the lamp 2, a threaded screw 5, a buzzer alarm 6, a rear beam of the frame 7, a self-locking nut 8, bolts 9, a screw mounting base 10, a first connecting plate 11, a second connecting plate 12, an extension plate 13, and a pressure plate. The lamp 2 is fixedly mounted on the front of the lamp mounting base 1 using lamp fasteners 4, forming a complete lighting unit. The lamp mounting base 1, as the core load-bearing component, has two extension plates 13 fixedly mounted on its upper and lower right sides. These extension plates 13, together with the screw mounting base 10, constitute the rotating connection structure of the device. The screw mounting base 10 is securely mounted on the rear beam of the frame 7 using bolts 9. Its structure is arc-shaped, with through holes at both the upper and lower ends. A threaded screw 5 passes through the upper and lower through holes of the screw mounting base 10 and the extension plate 13 at the right end of the lamp mounting base 1. A self-locking nut 8 is installed at each end of the threaded screw 5. These self-locking nuts 8 are in a loose state, so that the lamp mounting base 1 can rotate freely around the threaded screw 5, realizing the avoidance function of the lighting lamp 2 when subjected to external force.

[0033] A first connecting plate 11 is welded to the upper surface of the lamp mounting base 1 near the rotating connection part, and a second connecting plate 12 is welded to the corresponding position on the rear beam 7 of the frame above the lamp mounting base 1. Both connecting plates have connecting holes, and the two ends of a tension spring 3 are respectively hung between these two connecting holes. Under normal operating conditions, the tension spring 3 is in a slightly stretched state, and its rebound force continuously pulls the lamp mounting base 1 towards the rear beam 7 of the frame, keeping the lamp 2 in a stable working position. This design not only ensures the normal lighting function of the lamp 2 but also provides a reliable reset mechanism for the lamp mounting base 1. In addition, a pressure plate 14 is fixedly welded to the right end of the lamp mounting base 1, and this pressure plate 14 moves synchronously with the rotation of the lamp mounting base 1. A buzzer alarm 6 is installed on the rear beam 7 of the frame, and a certain gap is reserved between its push-button switch and the pressure plate 14. This gap ensures that the alarm is only triggered when the rotation angle of the lamp mounting base 1 is too large.

[0034] During operation, this device automatically adjusts its working state according to the magnitude of the external force applied. Under normal operating conditions without external force, the preload of the tension spring 3 keeps the lamp mounting base 1 tightly against the rear beam 7 of the frame, and the lamp 2 is in the optimal lighting position. At this time, the gap between the pressure plate 14 and the buzzer alarm 6 switch remains unchanged, and the system remains in a silent working state. When the harvester is working in the field, if the lamp 2 is subjected to a small impact force from straw, branches, or other debris, the lamp mounting base 1 will overcome part of the tension of the tension spring 3 and rotate around the threaded screw 5 towards the rear beam 7 of the frame, thereby avoiding the direct impact of the external force. Since the self-locking nut 8 is in a loose state, this rotation process is very smooth and can effectively buffer the impact energy. When these small external forces disappear, the restoring force of the tension spring 3 will immediately pull the lamp mounting base 1 back to its original position, restoring the normal lighting state. Throughout the process, the lamp mounting base 1 always remains within a certain range of rotation, and the pressure plate 14 will not touch the buzzer alarm 6.

[0035] When the lighting lamp 2 is subjected to a significant external impact, such as colliding with a large obstacle in the field, the rotation angle of the lamp mounting base 1 will increase significantly. At this time, the pressure plate 14 welded to the lamp mounting base 1 gradually approaches the buzzer alarm 6 as the rotation angle increases. When the rotation angle reaches a set angle, the pressure plate 14 will press the switch of the buzzer alarm 6, triggering an alarm signal. The sound emitted by the buzzer can promptly remind the driver to stop and check, preventing the lighting lamp 2 from being completely damaged due to continued operation, or even causing damage to the entire machine structure. This graded response mechanism ensures the practicality of the device in daily operation and provides important safety protection for the equipment.

[0036] This invention, through ingenious mechanical structure design, achieves automatic protection and intelligent alarm functions for the harvester's lighting lamp 2 in complex operating environments. The rotating connection between the lamp mounting base 1 and the rear beam 7 of the frame allows the lighting lamp 2 a certain degree of freedom of movement, effectively avoiding common collisions encountered during daily operations. The tension spring 3 not only provides reliable restoring force for the lamp mounting base 1 but also absorbs and buffers collision energy through its elastic properties. The coordinated arrangement of the buzzer alarm 6 and the pressure plate 14 adds an important safety warning function to the device, promptly alerting the operator in the event of a severe collision. The coordinated operation of these components allows the device to exhibit different response characteristics under varying intensities of external force, ensuring both the automatic return function of the lighting lamp 2 in the event of minor collisions and timely alarm function in the event of major collisions.

[0037] The actual operation of this device fully demonstrates its design rationality and practicality. During normal harvesting, the lighting lamp 2 maintains a stable illumination, providing necessary lighting for nighttime operations. When encountering common field debris such as straw and branches, the device automatically avoids damage to the lighting lamp 2 while maintaining continuous lighting. In the event of a larger collision that could cause equipment damage, the timely triggering of the alarm function allows operators to take immediate action to prevent further losses. This multi-layered protection mechanism significantly extends the lifespan of the lighting lamp 2, reduces operational interruptions due to lighting equipment failure, and effectively improves the harvester's working efficiency and economic benefits.

[0038] In summary, this utility model, through innovative mechanical structure design, successfully solves the technical problems of traditional harvester lights 2 being easily damaged and lacking early warning functions. The entire device has a simple structure, low manufacturing cost, convenient installation and maintenance, and high reliability, making it very suitable for widespread use in harsh agricultural operating environments. It is not only suitable for protecting harvester lights 2, but can also be widely applied to the protection of external accessories for other agricultural equipment, demonstrating significant technological advancement and practical value.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A harvester lighting device with automatic rebound protection function, comprising a rear beam of the frame (7) and a lighting lamp (2), characterized in that: It also includes a lamp mounting bracket (1), a tension spring (3), a threaded screw (5), a screw mounting bracket (10), and a buzzer alarm (6); The lighting lamp (2) is mounted on the lamp mounting base (1) by the lighting lamp fastener (4); The lamp mounting bracket (1) is movably mounted on the rear beam (7) of the frame via a hinge structure, and can rotate around the hinge point toward the inside of the rear beam (7); A tension spring (3) is provided between the lamp mounting base (1) and the rear beam (7) of the frame, and the tension spring (3) is used to provide an elastic tension force to reset the lamp mounting base (1); The lamp mounting base (1) is provided with a trigger, and the buzzer alarm (6) is located on the rear beam (7) of the vehicle frame. When the lamp mounting base (1) is rotated to a set angle, the trigger triggers the buzzer alarm (6) to sound an alarm.

2. A harvester lighting device with automatic rebound protection function according to claim 1, characterized in that: The hinge structure includes a screw mounting seat (10) fixedly installed on the rear beam (7) of the vehicle frame. The upper and lower sides of the right end of the lamp mounting seat (1) are respectively fixed with extension plates (13). The threaded screw (5) passes through the lower extension plate (13), the lower end of the screw mounting seat (10), the upper extension plate (13) and the upper end of the screw mounting seat (10) in sequence. The two ends of the threaded screw (5) are screwed with self-locking nuts (8), and the self-locking nuts (8) are in a loose state, so that the lamp mounting seat (1) can rotate around the threaded screw (5).

3. A harvester lighting device with automatic rebound protection function according to claim 2, characterized in that: The screw mounting base (10) has an arc-shaped structure and is fixed to the rear beam (7) of the vehicle frame by bolts (9).

4. A harvester lighting device with automatic rebound protection function according to claim 1, characterized in that: The lamp mounting base (1) is fixed with a first connecting plate (11) at one end near the hinge point, and the rear beam (7) of the frame is fixed with a second connecting plate (12). The two ends of the tension spring (3) are respectively hooked onto the first connecting plate (11) and the second connecting plate (12).

5. A harvester lighting device with automatic rebound protection function according to claim 1, characterized in that: The trigger is a pressure plate (14) fixedly installed on the lamp mounting base (1), and the buzzer alarm (6) is a buzzer with a mechanical trigger switch and is installed on the rear beam (7) of the vehicle frame. The pressure plate (14) and the trigger switch of the buzzer alarm (6) maintain a gap in the initial state.

6. A harvester lighting device with automatic rebound protection function according to claim 4, characterized in that: The tension spring (3) is in a slightly stretched state in the initial state, so that the lamp mounting bracket (1) fits against the rear beam (7) of the frame when there is no external force.

7. A harvester lighting device with automatic rebound protection function according to any one of claims 1 to 6, characterized in that: The lighting (2) can be replaced by a camera or a rearview mirror.

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