A tractor with an adjustable loading ramp

Abstract

The utility model discloses a tractor with adjustable loading ladder relates to the field of agricultural machinery, including tractor, and the side of tractor is connected with the mounting panel, and the mounting panel is installed with the controller, and the upper end of mounting panel is connected with first loading ladder, and the lower end slidingly connected with second loading ladder of mounting panel is installed with the motor in first loading ladder, and the first loading ladder is connected with the guide rod, and the first loading ladder is rotatably connected with the lead screw, and the top of lead screw is connected with the output shaft of motor, and the top of second loading ladder is connected with two connecting frames, and the connecting frame slidingly connected in the first loading ladder, and one side connecting frame is connected with the lead screw thread, and the other side connecting frame is connected with the guide rod slidingly. Through the motor drive lead screw rotation, make the connecting frame along the guide rod sliding, thereby realize the vertical lifting adjustment of second loading ladder, can adjust loading ladder height according to the driver leg length, reach the purpose of adapting different figure driver, improve the convenience of getting on and off the car.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a tractor with an adjustable loading ladder. Background Technology

[0002] Tractors, as core equipment of large agricultural machinery, are typically equipped with large tires and high ground clearance chassis designs to ensure their passability and stability in complex farmland terrain. This structural design results in a generally high cab position, requiring the driver to use auxiliary devices to get in and out of the vehicle. Especially in frequent operation scenarios, convenient and safe ways to get in and out of the vehicle directly affect work efficiency and operating comfort.

[0003] Most tractors currently use fixed steps as the main access to the cab. These steps are typically welded to the side or rear of the vehicle body, with the step spacing, height, and tread dimensions designed according to the standard adult stride, forming a multi-level vertical climbing structure. The driver must step onto each step in sequence, using the handrails for support, to climb and finally reach the cab seat. This design meets the needs of drivers of average height in most situations and is widely used due to its simple structure and low cost.

[0004] However, existing fixed-step ladders have significant limitations: their step spacing and height are typically designed based on the average adult height, making them extremely unfriendly to drivers who are shorter or have insufficient leg length. For example, when the step height exceeds the driver's natural leg height, some users may have difficulty reaching the first step and must use external objects to step on or climb in unusual postures, increasing the difficulty of getting in and out of the vehicle and posing safety risks such as slips, falls, and sprains. Furthermore, fixed-step ladders cannot adapt to the individual needs of drivers of different body types. In agricultural operations, where there are significant differences in the height of drivers, this problem is further highlighted, becoming a key technical defect affecting operational convenience and safety. Utility Model Content

[0005] The purpose of this invention is to provide a tractor with an adjustable loading ladder that can overcome the shortcomings of insufficient ladder adaptability.

[0006] To achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution: a tractor with an adjustable loading ladder, comprising a tractor, a mounting plate connected to the side of the tractor, a controller mounted on the mounting plate, a first loading ladder connected to the upper end of the mounting plate, a second loading ladder slidably connected to the lower end of the mounting plate, a motor installed inside the first loading ladder, a guide rod connected inside the first loading ladder, a lead screw rotatably connected inside the first loading ladder, the top end of the lead screw being connected to the output shaft of the motor, and two connecting frames connected to the top of the second loading ladder, the connecting frames being slidably connected inside the first loading ladder, one side of the connecting frame being threadedly connected to the lead screw, and the other side of the connecting frame being slidably connected to the guide rod.

[0007] Furthermore, it also includes baffles, with movable grooves on the outer sides of both the first and second boarding stairs, and the baffles are slidably connected to the first and second boarding stairs respectively through the movable grooves.

[0008] Furthermore, the mounting plate is connected to a protective cover surrounding the controller, and a movable plate is slidably connected to one end of the protective cover away from the mounting plate, the movable plate being used to close the protective cover.

[0009] Furthermore, the protective cover is connected to a scraper that is slidably connected to the outside of the movable plate.

[0010] Furthermore, both the first and second boarding stairs are equipped with anti-slip plates.

[0011] Furthermore, the mounting plate has a scale groove on its side, and the direction of the scale groove is parallel to the movement direction of the second upper ladder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The motor drives the lead screw to rotate, causing the connecting frame to slide along the guide rod, thereby realizing the vertical lifting and lowering adjustment of the second boarding ladder. The height of the boarding ladder can be adjusted according to the driver's leg length, so as to adapt to drivers of different body types and improve the convenience of getting on and off the vehicle.

[0013] 2. The sealing structure formed by the baffle sliding along the movable groove, combined with the elastic sealing characteristics of the rubber material, achieves dynamic sealing of the gap between the first and second upper ladders, effectively preventing soil, weeds and other debris from entering the sliding mechanism, thereby ensuring smooth sliding and extending the service life of the device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of 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 structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the installation structure of the controller and the first boarding ladder of this utility model.

[0017] Figure 3 This is a cross-sectional view showing the connection relationship between the motor and the lead screw of this utility model.

[0018] Figure 4 This is a cross-sectional view showing the connection relationship between the baffle and the second upper ladder of this utility model.

[0019] Figure 5 This is a cross-sectional view of the installation structure of the protective cover and movable plate of this utility model.

[0020] In the attached diagram, the following are the reference numerals: 1. Tractor, 2. Mounting plate, 3. Controller, 4. First upper ladder, 5. Motor, 6. Lead screw, 7. Second upper ladder, 8. Connecting frame, 9. Guide rod, 10. Movable groove, 11. Baffle, 12. Protective cover, 13. Movable plate, 14. Scraper, 15. Anti-slip plate, 16. Scale groove. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Example: A tractor with an adjustable loading ladder, see reference. Figures 1 to 5As shown, the system includes a tractor 1, a mounting plate 2, a controller 3, a first upper ladder 4, a motor 5, a lead screw 6, a second upper ladder 7, a connecting frame 8, and a guide rod 9. The mounting plate 2 is connected to the side of the tractor 1. The mounting plate 2 is made of high-strength aluminum alloy, which is lightweight and corrosion-resistant. The controller 3 is installed on the mounting plate 2. The controller 3 is also installed in the cab of the tractor 1. The first upper ladder 4 is connected to the upper end of the mounting plate 2, and the second upper ladder 7 is slidably connected to the lower end of the mounting plate 2. The motor 5 is installed inside the first upper ladder 4. The guide rod 9 is connected inside the first upper ladder 4. The lead screw 6 is rotatably connected inside the first upper ladder 4. The top of the lead screw 6 is connected to the output shaft of the motor 5. Two connecting frames 8 are connected to the top of the second upper ladder 7. The connecting frames 8 are slidably connected inside the first upper ladder 4. One connecting frame 8 is threadedly connected to the lead screw 6, and the other connecting frame 8 is slidably connected to the guide rod 9.

[0023] See Figure 3 and Figure 4 As shown, it also includes a baffle 11. The first boarding ladder 4 and the second boarding ladder 7 each have a movable groove 10 on their outer sides. The movable groove 10 adopts a U-shaped groove structure and a three-sided enclosure design to ensure the sliding guidance of the baffle 11. The baffle 11 is slidably connected to the first boarding ladder 4 and the second boarding ladder 7 through the movable groove 10. The baffle 11 is made of rubber and has strong elastic sealing.

[0024] See Figure 1 and Figure 5 As shown, it also includes a protective cover 12 and a movable plate 13. The mounting plate 2 is connected to the protective cover 12 surrounding the controller 3. The movable plate 13 is slidably connected to the end of the protective cover 12 away from the mounting plate 2. The movable plate 13 is used to close the protective cover 12. The protective cover 12 is made of stainless steel. The movable plate 13 has an L-shaped design and the upper end can be hung on the protective cover 12.

[0025] See Figure 5 As shown, it also includes a scraper 14, which is fixed to the protective cover 12 and slides in contact with the outer side of the movable plate 13. The scraper 14 is made of silicone, which is soft and wear-resistant, and the contact surface with the movable plate 13 is an inclined surface.

[0026] See Figure 2 As shown, it also includes anti-slip plate 15. Anti-slip plate 15 is installed on both the first boarding ladder 4 and the second boarding ladder 7. The anti-slip plate 15 is made of rubber and has raised texture on the surface to enhance friction and prevent the driver from slipping when climbing.

[0027] See Figure 2 As shown, the mounting plate 2 has a scale groove 16 on its side. The direction of the scale groove 16 is parallel to the movement direction of the second upper ladder 7. The scale groove 16 is a laser-engraved groove with clear and wear-resistant scale.

[0028] When the driver prepares to drive the tractor 1, he first pulls the movable plate 13 upwards by hand to remove it from the opening of the protective cover 12, exposing the internal controller 3. Then, he operates the controller 3 to start the motor 5. The motor 5 drives the lead screw 6 to rotate. The lead screw 6 drives the connecting frame 8 on one side to move downwards through the threaded engagement, and the second upper ladder 7 slides downwards accordingly. The connecting frame 8 on the other side slides synchronously along the guide rod 9 to ensure that the sliding process is smooth and without deviation.

[0029] When the second boarding ladder 7 descends, a gap is formed between it and the first boarding ladder 4. At this time, the baffle 11 slides along the movable groove 10 to cover the gap, keeping the gap closed to prevent external debris from entering and avoiding affecting the smoothness of subsequent reset. After the second boarding ladder 7 descends to a suitable height close to the ground, the driver observes and memorizes the current position through the scale groove 16 on the side of the mounting plate 2 to ensure that subsequent operations can quickly adjust to the same height.

[0030] After the driver pushes the movable plate 13 back to its original position and re-closes the protective cover 12, they step on the second loading ladder 7 and the first loading ladder 4. The raised texture on the surface of the anti-slip plate 15 increases friction and prevents slipping while climbing. After passing through the first loading ladder 4, the driver smoothly enters the cab. Once inside the cab, the driver operates the controller 3 to reverse the motor 5, causing the lead screw 6 to rotate in the opposite direction, which moves the connecting frame 8 upward. The second loading ladder 7 then slides upward and resets to its initial position, ensuring that it will not collide with other objects due to its low position during operation.

[0031] If debris adheres to the outside of the movable plate 13, the scraper 14 on the protective cover 12 will contact the surface of the movable plate 13 and scrape off the debris during the process of pulling up the movable plate 13, ensuring that the movable plate 13 slides smoothly and the inside of the protective cover 12 is clean, so as to avoid affecting the normal operation of the controller 3.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A tractor with an adjustable loading ladder, characterized in that: The device includes a tractor (1), a mounting plate (2) connected to the side of the tractor (1), a controller (3) mounted on the mounting plate (2), a first loading ladder (4) connected to the upper end of the mounting plate (2), a second loading ladder (7) slidably connected to the lower end of the mounting plate (2), a motor (5) installed inside the first loading ladder (4), a guide rod (9) connected inside the first loading ladder (4), a lead screw (6) rotatably connected inside the first loading ladder (4), the top end of the lead screw (6) being connected to the output shaft of the motor (5), and two connecting frames (8) connected to the top of the second loading ladder (7), the connecting frames (8) being slidably connected inside the first loading ladder (4), one side of the connecting frame (8) being threadedly connected to the lead screw (6), and the other side of the connecting frame (8) being slidably connected to the guide rod (9).

2. A tractor with an adjustable loading ladder as described in claim 1, characterized in that: It also includes a baffle (11), and the first boarding ladder (4) and the second boarding ladder (7) are both provided with movable grooves (10). The baffle (11) is slidably connected to the first boarding ladder (4) and the second boarding ladder (7) through the movable grooves (10).

3. A tractor with an adjustable loading ladder as described in claim 1, characterized in that: The mounting plate (2) is connected to a protective cover (12) surrounding the controller (3). A movable plate (13) is slidably connected to one end of the protective cover (12) away from the mounting plate (2). The movable plate (13) is used to close the protective cover (12).

4. A tractor with an adjustable loading ladder as described in claim 3, characterized in that: The protective cover (12) is connected to a scraper (14) that is slidably connected to the outside of the movable plate (13).

5. A tractor with an adjustable loading ladder as described in claim 1, characterized in that: Anti-slip plates (15) are provided on both the first boarding ladder (4) and the second boarding ladder (7).

6. A tractor with an adjustable loading ladder as described in claim 1, characterized in that: The mounting plate (2) has a scale groove (16) on its side, and the direction of the scale groove (16) is parallel to the movement direction of the second upper ladder (7).

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