A tractor safety protection emergency braking mechanism
By designing a main anti-collision beam and braking mechanism on the unmanned tractor, mechanical buffering and automatic emergency stop are achieved, solving the safety hazards caused by unstable remote control signals and improving the tractor's operational safety and control reliability in complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广西合浦县惠来宝机械制造有限公司
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-03
AI Technical Summary
In complex farmland environments, the remote control operation of existing driverless tractors is highly dependent on the stability of wireless signals. Once the signal transmission is interfered with or interrupted, it is difficult to respond in time to perform emergency stops and engine shutdowns, which poses a safety hazard.
A tractor safety protection emergency braking mechanism was designed, including a main anti-collision beam, side anti-collision beams and a braking mechanism. Through components such as a linkage plate, a fixed rod, a spring and a rubber column, an emergency stop and engine shutdown signal are automatically triggered upon collision, realizing mechanical buffering and electrical signal transmission.
It effectively buffers collision forces, avoids damage to critical components, ensures timely braking and shutdown of the tractor in case of emergencies, improves operational safety and reliability, and forms multiple safety guarantees when combined with the manual emergency stop button.
Smart Images
Figure CN224447746U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tractor safety protection technology, and in particular to an emergency braking mechanism for tractor safety protection. Background Technology
[0002] With the continuous improvement of agricultural intelligence and automation, driverless tractors have been widely used in various agricultural tasks such as tilling, sowing, and fertilizing. Equipped with navigation systems, sensors, remote control modules, and main controllers, driverless tractors can complete preset work paths and tasks without human intervention. However, in actual operation, especially in complex and changing farmland environments, driverless tractors still face many safety hazards and technical bottlenecks. Currently, common driverless tractors typically rely on manual remote control to achieve emergency stopping and engine shutdown when encountering obstacles or unexpected situations. These remote control systems mainly communicate wirelessly between the signal transmitter and receiver; when the operator detects an abnormality, they can send a stop command via the remote control.
[0003] Existing control methods have significant limitations: remote control operation is highly dependent on the stability of wireless signals. Once the signal transmission is interfered with or interrupted, the tractor may not be able to respond in time to perform emergency stops and shutdown operations. At the same time, remote control operation relies on real-time human monitoring and reaction, which is difficult to deal with high-risk scenarios such as the sudden appearance of obstacles or multi-machine collaborative operations. Especially when the obstacle is very close or the operator's attention is not focused, it is difficult to make timely safety responses, which poses significant safety hazards. Therefore, there is an urgent need for a simple safety protection structure that can realize emergency stop control to improve the operational safety and reliability of unmanned tractors. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a tractor safety protection emergency braking mechanism to solve the problem that remote control operation is highly dependent on the stability of wireless signals. Once the signal transmission is interfered with or interrupted, the tractor may not be able to respond in time to perform emergency stop and engine shutdown operations.
[0005] To achieve the above objectives, this utility model provides a tractor safety protection emergency braking mechanism, including an intelligent tractor body. A signal receiver for receiving remote control signals is fixedly connected to the top of the intelligent tractor body. Mounting plates are fixedly installed on both sides of one end of the intelligent tractor body by bolts. A main anti-collision beam for protection is fixedly connected between the ends of the two mounting plates away from the intelligent tractor body. Side anti-collision beams are fixedly connected to both sides of the main anti-collision beam. A braking mechanism for emergency braking of the intelligent tractor body when it is about to collide with an object is provided inside the main anti-collision beam.
[0006] Preferably, the braking mechanism includes a linkage plate slidably connected between two mounting plates. Two fixing rods are fixedly connected to one side of the linkage plate. One end of each fixing rod passes through the outer wall of the main anti-collision beam and is fixedly connected to an anti-collision rod. A first spring is sleeved on the outer wall of the fixing rod. The two ends of the first spring are fixedly connected to the side wall of the anti-collision rod and the side wall of the main anti-collision beam, respectively.
[0007] Preferably, a roller is rotatably connected to the side wall of the linkage plate, a fixing plate is fixedly connected to the side wall of the main anti-collision beam, an mounting block is fixedly connected to the top of the fixing plate, an emergency stop button is provided on the top of the mounting block and on both sides of the top of the intelligent tractor body, a lower pressure plate is slidably connected between the two sides of the mounting block, a second spring is fixedly connected to both sides of the lower pressure plate, the bottom of the second spring is fixedly connected to the top of the fixing plate, a rubber column is fixedly connected to the bottom of the inner wall of the lower pressure plate, a roller block is fixedly connected to the top of the lower pressure plate, and the top of the roller block is in contact with the outer wall of the roller.
[0008] Preferably, a connecting plate is fixedly connected to the outer wall of the anti-collision bar, and a damping rod to prevent the first spring from rebounding rapidly is fixedly connected between the side wall of the connecting plate and the bottom of the fixed plate.
[0009] Preferably, both ends of the anti-collision bar are inclined towards the side anti-collision beam. When the anti-collision bar is squeezed by an object, the anti-collision bar will drive the fixed bar to move towards the main anti-collision beam and compress the first spring.
[0010] Preferably, when the fixed rod moves, it drives the linkage plate to move towards the mounting block. When the linkage plate moves, it drives the roller to slide on the top of the roller block. The top of the roller block is arc-shaped. When the roller contacts the roller block, it presses the roller block and the lower pressure plate to move towards the emergency stop button and presses the emergency stop button through the rubber post.
[0011] Preferably, when the anti-collision bar moves toward the main anti-collision beam, it compresses the damping rod between the fixed plate and the connecting plate.
[0012] The beneficial effects of this utility model are:
[0013] 1. The tractor's safety protection emergency braking mechanism, when the signal between the intelligent tractor and the remote control is interrupted or an obstacle appears in front, the anti-collision bar at one end first contacts the obstacle and, under the pressure, drives the fixed bar to move towards the main anti-collision beam. At the same time, it compresses the first spring sleeved on the outside of the fixed bar, which not only effectively buffers the collision force and absorbs some mechanical energy, but also prevents the impact force from being directly transmitted to the intelligent tractor body, reducing the risk of damage to key components such as the control system. During the movement of the fixed bar, the linkage plate slides on the top of the arc-shaped roller block through the rollers and pushes the lower pressure plate downward, compressing the rubber column at the bottom of the lower pressure plate to flexibly press the emergency stop button, transmitting the emergency stop signal and the engine shutdown signal to the main controller, realizing automatic braking and engine shutdown operations, thereby significantly improving the operational safety and control reliability of the unmanned tractor in emergency environments. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0016] Figure 2 This is a three-dimensional structural diagram of the main anti-collision beam and the side anti-collision beam of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the anti-collision bar and damping bar of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the braking mechanism of this utility model.
[0019] The diagram is marked as follows:
[0020] 1. Intelligent tractor body; 2. Signal receiver; 3. Mounting plate; 4. Main anti-collision beam; 5. Side anti-collision beam; 6. Linkage plate; 7. Fixing rod; 8. Anti-collision bar; 9. First spring; 10. Roller; 11. Fixing plate; 12. Mounting block; 13. Emergency stop button; 14. Lower pressure plate; 15. Second spring; 16. Rubber column; 17. Roller block; 18. Connecting plate; 19. Damping rod. Detailed Implementation
[0021] 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 specific embodiments.
[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0023] like Figures 1 to 4 As shown, a tractor safety protection emergency braking mechanism includes an intelligent tractor body 1. A signal receiver 2 for receiving remote control signals is fixedly connected to the top of the intelligent tractor body 1. Mounting plates 3 are fixedly installed on both sides of one end of the intelligent tractor body 1 by bolts. A main anti-collision beam 4 for protection is fixedly connected between the ends of the two mounting plates 3 away from the intelligent tractor body 1. Side anti-collision beams 5 are fixedly connected to both sides of the main anti-collision beam 4. A braking mechanism for emergency braking of the intelligent tractor body 1 when it is about to collide with an object is provided inside the main anti-collision beam 4.
[0024] Further, see attached document. Figures 1 to 4 As shown, the braking mechanism includes a linkage plate 6 slidably connected between two mounting plates 3. Two fixing rods 7 are fixedly connected to one side of the linkage plate 6. One end of each fixing rod 7 passes through the outer wall of the main anti-collision beam 4 and is fixedly connected to an anti-collision rod 8. A first spring 9 is sleeved on the outer wall of the fixing rod 7. The two ends of the first spring 9 are respectively fixedly connected to the side wall of the anti-collision rod 8 and the side wall of the main anti-collision beam 4. A roller 10 is rotatably connected to the side wall of the linkage plate 6. A fixing plate 11 is fixedly connected to the side wall of the main anti-collision beam 4. The top of the fixing plate 11... An installation block 12 is fixedly connected to the top of the installation block 12 and both sides of the top of the intelligent tractor body 1. An emergency stop button 13 is provided on the top of the installation block 12 and both sides of the top. A lower pressure plate 14 is slidably connected between the two sides of the installation block 12. A second spring 15 is fixedly connected to both sides of the lower pressure plate 14. The bottom of the second spring 15 is fixedly connected to the top of the fixed plate 11. A rubber column 16 is fixedly connected to the bottom of the inner wall of the lower pressure plate 14. A roller block 17 is fixedly connected to the top of the lower pressure plate 14. The top of the roller block 17 is in contact with the outer wall of the roller 10.
[0025] When the signal between the intelligent tractor body 1 and the remote control in the operator's hand is interrupted, or when an obstacle appears in front of the intelligent tractor body 1 and the operator does not react in time to avoid it, the anti-collision bar 8 located at one end of the intelligent tractor body 1 will first contact the obstacle. Under the pressure of external force, the anti-collision bar 8 will drive the fixed rod 7, which is fixedly connected, to move towards the main anti-collision beam 4. At the same time, it will compress the first spring 9 sleeved on the fixed rod 7 to buffer the collision force, absorb some mechanical energy, and prevent the impact force from being directly transmitted to the intelligent tractor body 1, thereby effectively reducing the risk of damage to the front mechanical structure and internal key components such as the control system.
[0026] At the same time, the damping rod 19 set between the anti-collision rod 8 and the fixed plate 11 is also compressed, thereby slowing down the rapid rebound of the first spring 9 and further improving the buffer stability during the anti-collision. As the fixed rod 7 moves, the fixed rod 7 drives the linkage plate 6 connected to it to slide between the two mounting plates 3. The linkage plate 6 drives the roller 10 rotatably connected on its side wall to slide towards the mounting block 12. After the roller 10 slides to the top of the mounting block 12, the roller block 17 in contact with it begins to move downward. The roller block 17 has an arc-shaped structure, so that the sliding of the roller 10 can smoothly transition into the downward pressing motion, thereby driving the lower pressure plate 14 fixedly connected below the roller block 17 to move downward as a whole and compress the second spring 15 set on both sides of it.
[0027] As the lower pressure plate 14 moves down, the rubber column 16 fixed at the bottom of its inner wall is pushed and pressed down on the emergency stop button 13 located on the top of the mounting block 12, thereby maintaining flexible response capability and sending emergency stop signal and engine shutdown signal to the main controller inside the intelligent tractor body 1. The emergency stop button 13 and the main controller are electrically connected, and the intelligent tractor immediately performs braking and shutdown operations to avoid collision accidents.
[0028] In addition, manual emergency stop buttons 13 are also provided on both sides of the top of the intelligent tractor body 1. Operators can press the buttons directly in an emergency to achieve the same emergency stop and engine shutdown effect, realizing a multi-safety mechanism of automatic triggering and manual intervention, ensuring the operational safety and control reliability of the intelligent tractor body 1 during operation.
[0029] When the signal between the intelligent tractor body 1 and the remote control is interrupted or an obstacle appears in front, the anti-collision bar 8 at one end first contacts the obstacle and, under the pressure, drives the fixed bar 7 to move towards the main anti-collision beam 4. At the same time, it compresses the first spring 9 sleeved on the outside of the fixed bar 7, effectively buffering the collision force, absorbing some mechanical energy, and preventing the impact force from being directly transmitted to the intelligent tractor body 1, reducing the risk of damage to key components such as the control system. During the movement of the fixed bar 7, the linkage plate 6 slides between the two mounting plates 3, which in turn drives the roller 10 to slide on the top of the arc-shaped roller block 17 and... The lower pressure plate 14 is pushed downwards, compressing the second springs 15 located on both sides of the lower pressure plate 14. Finally, the emergency stop signal and the engine shutdown signal are transmitted to the main controller through the rubber column 16 flexibly pressing the emergency stop button 13 on the top of the mounting block 12, realizing automatic braking and engine shutdown operations. At the same time, manual emergency stop buttons 13 are also provided on both sides of the top of the intelligent tractor body 1, allowing the operator to directly press and trigger the emergency stop command in an emergency. This forms a multi-layered safety control mechanism that combines automatic detection and manual intervention, thereby significantly improving the operational safety and control reliability of the unmanned tractor in sudden environments.
[0030] Further, see attached document. Figure 4 As shown, a connecting plate 18 is fixedly connected to the outer wall of the anti-collision bar 8. A damping rod 19 is fixedly connected between the side wall of the connecting plate 18 and the bottom of the fixed plate 11 to prevent the first spring 9 from rebounding rapidly. This prevents the first spring 9 from rebounding violently during the recovery process, causing structural vibration and improving the operational stability and safety of the entire braking mechanism.
[0031] Further, see attached document. Figure 3 As shown, the two ends of the anti-collision bar 8 are inclined towards the side anti-collision beam 5. When the anti-collision bar 8 is squeezed by an object, the anti-collision bar 8 will drive the fixed bar 7 to move towards the main anti-collision beam 4 and compress the first spring 9. This helps to guide and disperse the force direction during the collision, which not only reduces the concentrated effect of the frontal impact, but also effectively reduces the risk of deformation of the front structure of the tractor. At the same time, the movement of the fixed bar 7 realizes the synchronous compression of the first spring 9, thereby realizing the mechanical buffer function of the front collision and ensuring the stable operation of the whole machine.
[0032] Further, see attached document. Figure 4 As shown, when the fixed rod 7 moves, it will drive the linkage plate 6 to move towards the mounting block 12. When the linkage plate 6 moves, it will drive the roller 10 to slide on the top of the roller block 17. The top of the roller block 17 is arc-shaped. When the roller 10 contacts the roller block 17, it will press the roller block 17 and the lower pressure plate 14 to move towards the emergency stop button 13 and press the emergency stop button 13 through the rubber column 16. This avoids impact triggering, improves the response sensitivity and reliability of the emergency stop mechanism, and further relieves instantaneous stress through the flexible contact of the rubber column 16, realizing flexible triggering and high safety guarantee.
[0033] Further, see attached document. Figure 4 As shown, when the anti-collision bar 8 moves toward the main anti-collision beam 4, it will compress the damping rod 19 between the fixed plate 11 and the connecting plate 18, which will slow down the rapid rebound of the first spring 9 and further improve the buffer stability during the anti-collision.
[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0035] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A tractor safety protection emergency braking mechanism, comprising an intelligent tractor body (1), a signal receiver (2) for receiving remote control signals is fixedly connected to the top of the intelligent tractor body (1), characterized in that: The intelligent tractor body (1) has mounting plates (3) fixedly installed on both sides of one end by bolts. The two mounting plates (3) are fixedly connected to the ends away from the intelligent tractor body (1) by a main anti-collision beam (4) for protection. The two sides of the main anti-collision beam (4) are respectively fixedly connected to side anti-collision beams (5). The main anti-collision beam (4) is provided with a braking mechanism for emergency braking of the intelligent tractor body (1) when it is about to collide with an object.
2. A tractor safety guard emergency brake mechanism according to claim 1, characterised in that, The braking mechanism includes a linkage plate (6) slidably connected between two mounting plates (3). Two fixing rods (7) are fixedly connected to one side of the linkage plate (6). One end of the two fixing rods (7) passes through the outer wall of the main anti-collision beam (4) and is fixedly connected to an anti-collision rod (8). A first spring (9) is sleeved on the outer wall of the fixing rod (7). The two ends of the first spring (9) are fixedly connected to the side wall of the anti-collision rod (8) and the side wall of the main anti-collision beam (4), respectively.
3. A tractor safety shield emergency brake mechanism according to claim 2, wherein The side wall of the linkage plate (6) is rotatably connected to a roller (10), the side wall of the main anti-collision beam (4) is fixedly connected to a fixing plate (11), the top of the fixing plate (11) is fixedly connected to an mounting block (12), the top of the mounting block (12) and both sides of the top of the intelligent tractor body (1) are provided with emergency stop buttons (13), the two sides of the mounting block (12) are slidably connected to a lower pressure plate (14), the two sides of the lower pressure plate (14) are fixedly connected to a second spring (15), the bottom of the second spring (15) is fixedly connected to the top of the fixing plate (11), the bottom of the inner wall of the lower pressure plate (14) is fixedly connected to a rubber column (16), the top of the lower pressure plate (14) is fixedly connected to a roller block (17), and the top of the roller block (17) is in contact with the outer wall of the roller (10).
4. A tractor safety shield emergency brake mechanism according to claim 2, wherein A connecting plate (18) is fixedly connected to the outer wall of the anti-collision bar (8), and a damping rod (19) is fixedly connected between the side wall of the connecting plate (18) and the bottom of the fixing plate (11) to prevent the first spring (9) from rebounding rapidly.
5. A tractor safety protection emergency braking mechanism according to claim 2, characterized in that, The two ends of the anti-collision bar (8) are inclined towards the side anti-collision beam (5). When the anti-collision bar (8) is squeezed by an object, the anti-collision bar (8) will drive the fixed bar (7) to move towards the main anti-collision beam (4) and compress the first spring (9).
6. A tractor safety shield emergency brake mechanism according to claim 3, wherein When the fixed rod (7) moves, it will drive the linkage plate (6) to move towards the mounting block (12). When the linkage plate (6) moves, it will drive the roller (10) to slide on the top of the roller block (17). The top of the roller block (17) is arc-shaped. When the roller (10) contacts the roller block (17), it will press the roller block (17) and the lower pressure plate (14) to move towards the emergency stop button (13) and press the emergency stop button (13) through the rubber column (16).
7. A tractor safety shield emergency brake mechanism as defined in claim 4 wherein, When the anti-collision bar (8) moves toward the main anti-collision beam (4), it will compress the damping rod (19) between the fixed plate (11) and the connecting plate (18).