Grain transportation semitrailer facilitating unloading

By introducing a pusher and drive mechanism into the grain semi-trailer, mechanical force is used to push the grain to achieve complete unloading, which solves the problem of incomplete unloading, improves unloading efficiency and practicality, and avoids grain residue.

CN223835489UActive Publication Date: 2026-01-27SHANDONG YUNCHENG JUNTONG SPECIAL VEHICLE CO LTD
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Patent Information

Application Number
CN202520512312.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-01-27
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Existing grain semi-trailers have the problem of incomplete unloading, resulting in grain residue inside the truck bed, which requires manual cleaning, wasting time and manpower.

Method used

The system employs a pushing mechanism and a driving mechanism, including a first fixed plate, a slide bar, a chute, rollers, a shovel seat, a spring, and a motor-driven lead screw, to achieve complete unloading of grain through mechanical pushing and prevent residue.

Benefits of technology

This method enables complete unloading of grain, avoids manual cleaning steps, improves unloading efficiency and practicality, and prevents grain waste.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223835489U_ABST
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Abstract

The utility model discloses a grain transportation semitrailer convenient to unload, which comprises a semitrailer carriage, a pushing mechanism for pushing grain is arranged at one end in the semitrailer carriage, the pushing mechanism comprises a first fixing plate, two symmetrical sliding holes are formed in two sides of the bottom of the first fixing plate, and sliding rods are arranged in the two sliding holes in a sliding manner. A second fixing plate is fixed to the bottoms of the two sliding rods, the bottom of one end of a shovel base is fixed to the outer wall of one end of the second fixing plate, the end, away from the first fixing plate, of the shovel base is inclined, and two sliding grooves are formed in each of the two sides of the inner wall of the semi-trailer compartment. According to the semi-trailer compartment, the effect that grains are conveniently unloaded is achieved, incomplete unloading of the grains is prevented, the grains can be completely unloaded when being unloaded, the step that the interior of the semi-trailer compartment needs to be manually cleaned again is avoided, practicability is high, and operation is easy.
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Description

Technical Field

[0001] This utility model relates to the field of grain transportation technology, and in particular to a grain transportation semi-trailer that is easy to unload. Background Technology

[0002] A semi-trailer is a trailer whose axle is located behind the vehicle's center of gravity (when the vehicle is evenly loaded) and is equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. It is a heavy-duty transportation vehicle connected to the semi-trailer head by a towing pin. As a large country with a vast territory and a large population, my country's grain resources are scattered, so semi-trailers are usually needed to transport grain.

[0003] However, the grain semi-trailers currently in use first lift one end of the cargo box using a hydraulic system during unloading, and then open the sealed door to pour out all the bulk grain. This method of unloading based solely on the grain's own weight leads to incomplete unloading. Usually, the height of the cargo box is fixed. When it is lifted to the highest point, although the grain is unloaded, some grain remains inside the cargo box, requiring manual cleaning afterward, which is time-consuming and labor-intensive. Therefore, there is an urgent need for a grain transport semi-trailer that facilitates unloading to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a grain transport semi-trailer that facilitates unloading.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grain transport semi-trailer that facilitates unloading includes a semi-trailer body, wherein a pushing mechanism for pushing grain is provided at one end of the interior of the semi-trailer body, and a driving mechanism for driving the pushing mechanism is provided at one end of the inner wall of the semi-trailer body.

[0007] The pushing mechanism includes a first fixed plate, on which two symmetrical sliding holes are opened on both sides of the bottom. A sliding rod is slidably installed inside each of the two sliding holes. The bottom of the two sliding rods is fixed to the same second fixed plate. The bottom of one end of the shovel seat is fixed to the outer wall of one end of the second fixed plate. The end of the shovel seat away from the first fixed plate is inclined. Two sliding grooves are opened on both sides of the inner wall of the semi-trailer. Two rollers are rotatably connected to both sides of the first fixed plate. The rollers are adapted to the interior of the multiple sliding grooves. The shovel seat can block the connection between the first fixed plate and the second fixed plate.

[0008] Preferably, one end of a spring is fixed to both sides of the top of the second fixing plate, the other end of the spring is fixedly connected to the bottom of the first fixing plate, and the two springs are located on the outer surface of the slide rod.

[0009] Preferably, the drive mechanism includes a mounting shell fixed to one end of the inner wall of the semi-trailer compartment. A mounting plate is fixed to the bottom of the inner side of the mounting shell. A lead screw is rotatably connected to the top of the mounting plate. The top of the lead screw is rotatably connected to the top of the inner side of the mounting shell. A through groove is provided at one end of the mounting shell near the first fixed plate. A movable block is provided outside the lead screw. A connecting rod is rotatably connected to one end of the movable block near the first fixed plate. The other end of the connecting rod passes through the through groove and is rotatably connected to one end of the first fixed plate. When the movable block moves, it squeezes the connecting rod, which in turn pushes the first fixed plate, thereby pushing the grain to achieve a rapid unloading effect.

[0010] Preferably, the outer wall of the lead screw is fitted with a suitable lead screw sleeve, and the outer wall of the lead screw sleeve is fixed to the inner wall of the moving block.

[0011] Preferably, a fixing block is fixed to the bottom of the interior of the semi-trailer, and the top of the fixing block is sloping. A spring will compress the second fixing plate, so that the second fixing plate is always in contact with the top of the slope, which can facilitate the pushing of grain.

[0012] Preferably, a motor is mounted on the bottom of the mounting plate, and the output shaft of the motor is fixedly connected to the bottom of the lead screw.

[0013] Preferably, the semi-trailer body is provided with a double-opening sealed door at the end away from the first fixed plate, and a baffle is fixed at the top of the semi-trailer body at the end away from the double-opening sealed door. The baffle can isolate the inner cavity formed between the first fixed plate and the mounting shell to prevent grain from falling between the first fixed plate and the mounting shell during the loading process and becoming difficult to remove.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Due to the adoption of a pushing mechanism, when the lead screw drives the moving block to move, the moving block will push the connecting rod, and then the connecting rod will push the first fixed plate. The first fixed plate and the shovel seat will push the grain inside the semi-trailer, thereby achieving the effect of facilitating the unloading of grain and preventing incomplete unloading. This ensures that the grain can be completely unloaded during unloading, avoiding the need for manual cleaning of the semi-trailer interior. It is highly practical and easy to operate.

[0016] 2. Because of the use of springs, the springs will compress the second fixing plate, which will keep the second fixing plate and the shovel seat in contact with the top of the slope. This will push the grain at the bottom of the semi-trailer, preventing it from being left at the bottom of the semi-trailer and causing waste. Attached Figure Description

[0017] Figure 1 This is a partial structural diagram of the semi-trailer body of a grain transport semi-trailer that facilitates unloading, as proposed in this utility model.

[0018] Figure 2 A cross-sectional schematic diagram of the internal structure of the semi-trailer body of a grain transport semi-trailer that facilitates unloading, as proposed in this utility model.

[0019] Figure 3 This is a partial structural diagram of the drive mechanism of a grain transport semi-trailer that facilitates unloading, as proposed in this utility model.

[0020] Figure 4 This is a partial structural diagram of the propulsion mechanism of a grain transport semi-trailer that facilitates unloading, as proposed in this utility model.

[0021] In the diagram: 1. Semi-trailer body; 101. Double-opening sealed door; 102. Slide rail; 103. Baffle; 3. Fixing block; 301. Ramp; 4. Mounting housing; 401. Mounting plate; 402. Motor; 403. Lead screw; 404. Moving block; 405. Through groove; 406. Connecting rod; 5. First fixing plate; 500. Roller; 501. Shovel seat; 502. Second fixing plate; 503. Slide rod; 504. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A grain transport semi-trailer that facilitates unloading includes a semi-trailer body 1, with a pushing mechanism for pushing the grain at one end of the interior of the semi-trailer body 1, and a driving mechanism for driving the pushing mechanism at one end of the inner wall of the semi-trailer body 1.

[0024] The pushing mechanism includes a first fixed plate 5. Two symmetrical sliding holes are opened on both sides of the bottom of the first fixed plate 5, and a sliding rod 503 is slidably installed inside each of the two sliding holes. The bottom of the two sliding rods 503 is fixed to the same second fixed plate 502. The bottom of one end of the shovel seat 501 is fixed to the outer wall of one end of the second fixed plate 502. The shovel seat 501 can block the connection between the first fixed plate 5 and the second fixed plate 502. The end of the shovel seat 501 away from the first fixed plate 5 is inclined. Two sliding grooves 102 are opened on both sides of the inner wall of the semi-trailer 1. Two rollers 500 are rotatably connected to both sides of the first fixed plate 5, and the multiple rollers 500 are respectively adapted to the interior of the multiple sliding grooves 102.

[0025] In this utility model, one end of a spring 504 is fixed on both sides of the top of the second fixing plate 502, and the other end of the spring 504 is fixedly connected to the bottom of the first fixing plate 5, and the two springs 504 are located on the outer surface of the slide rod 503.

[0026] In this utility model, the driving mechanism includes a mounting shell 4 fixed to one end of the inner wall of the semi-trailer 1. A mounting plate 401 is fixed to the bottom of the interior of the mounting shell 4. A lead screw 403 is rotatably connected to the top of the mounting plate 401. The top of the lead screw 403 is rotatably connected to the top of the interior of the mounting shell 4. A through groove 405 is provided at one end of the mounting shell 4 near the first fixed plate 5. A moving block 404 is provided outside the lead screw 403. A connecting rod 406 is rotatably connected to one end of the moving block 404 near the first fixed plate 5. The other end of the connecting rod 406 passes through the through groove 405 and is rotatably connected to one end of the first fixed plate 5. When the moving block 404 moves, it will squeeze the connecting rod 406, and the connecting rod 406 will push the first fixed plate 5, thereby pushing the grain to achieve the effect of rapid unloading.

[0027] In this utility model, the outer wall of the lead screw 403 is fitted with a suitable lead screw sleeve, and the outer wall of the lead screw sleeve is fixed to the inner wall of the moving block 404.

[0028] In this utility model, a fixing block 3 is fixed to the bottom of the interior of the semi-trailer 1. The top of the fixing block 3 is a slope 301. The spring 504 will compress the second fixing plate 502, so that the second fixing plate 502 is always in contact with the top of the slope 301, which can facilitate the pushing of grain.

[0029] In this utility model, a motor 402 is installed at the bottom of the mounting plate 401, and the output shaft of the motor 402 is fixedly connected to the bottom of the lead screw 403.

[0030] In this utility model, a double-opening sealing door 101 is provided at the end of the semi-trailer 1 away from the first fixed plate 5. When the double-opening sealing door 101 is opened, the grain can be discharged. A baffle 103 is fixed at the top of the semi-trailer 1 away from the double-opening sealing door 101. The baffle 103 can isolate the inner cavity formed between the first fixed plate 5 and the mounting shell 4 to prevent the grain from falling into the space between the first fixed plate 5 and the mounting shell 4 during the loading process and making it difficult to remove.

[0031] Working principle: In use, the semi-trailer box 1 is mounted on the platform of the semi-trailer, and then the grain to be transported is loaded into the semi-trailer box 1. After loading, the double-opening sealed door 101 is closed, and the grain can then be transported. When the grain needs to be unloaded upon arrival at the destination, the double-opening sealed door 101 is opened first, and then the hydraulic system of the semi-trailer is activated to lift one end of the semi-trailer box 1. At this time, the semi-trailer box 1 will be tilted. The fixed block 3 and the ramp 301 will improve the unloading efficiency of the grain. Then, the motor 402 is started, which will drive the lead screw 403 to rotate. The lead screw 403 will drive the moving block 404 to move on its outer surface. When the moving block 404 moves, it will squeeze the connecting rod 406. The connecting rod 406 will then compress the first fixed block 406. When the fixed plate 5 is pushed, the first fixed plate 5 will drive the roller 500 to slide inside the slide groove 102. The roller 500 will roll in the slide groove 102, thereby limiting the movement block 404. When the first fixed plate 5 moves, it will drive the second fixed plate 502 to move. The second fixed plate 502 will drive the shovel seat 501 to move. The shovel seat 501 will push the grain, thereby facilitating the unloading of the grain and preventing any grain residue inside the semi-trailer 1. When the second fixed plate 502 moves, the spring 504 will always compress the second fixed plate 502, thereby ensuring that the bottom of the second fixed plate 502 and the shovel seat 501 are always in contact with the top of the ramp 301, thus preventing grain residue inside the semi-trailer 1.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A semi-trailer for transporting grain that is easy to unload, comprising a semi-trailer body (1), characterized in that, The interior of the semi-trailer (1) is provided with a pushing mechanism for pushing the grain at one end, and the inner wall of the semi-trailer (1) is provided with a driving mechanism for driving the pushing mechanism at one end. The pushing mechanism includes a first fixed plate (5), on which two symmetrical sliding holes are opened on both sides of the bottom of the first fixed plate (5), and sliding rods (503) are slidably provided inside the two sliding holes. The bottom of the two sliding rods (503) is fixed to the same second fixed plate (502). The bottom of one end of the outer wall of the second fixed plate (502) is fixed to one end of the shovel seat (501). The end of the shovel seat (501) away from the first fixed plate (5) is inclined. Two sliding grooves (102) are opened on both sides of the inner wall of the semi-trailer (1). Two rollers (500) are rotatably connected to both sides of the first fixed plate (5), and multiple rollers (500) are respectively adapted to the interior of multiple sliding grooves (102).

2. The grain transport semi-trailer for easy unloading according to claim 1, characterized in that, One end of a spring (504) is fixed on both sides of the top of the second fixing plate (502), and the other end of the spring (504) is fixedly connected to the bottom of the first fixing plate (5), and the two springs (504) are located on the outer surface of the slide rod (503).

3. The grain transport semi-trailer for easy unloading according to claim 1, characterized in that, The drive mechanism includes a mounting shell (4) fixed to one end of the inner wall of the semi-trailer (1). A mounting plate (401) is fixed to the bottom of the interior of the mounting shell (4). A lead screw (403) is rotatably connected to the top of the mounting plate (401). The top of the lead screw (403) is rotatably connected to the top of the interior of the mounting shell (4). A through groove (405) is provided at one end of the mounting shell (4) near the first fixed plate (5). A moving block (404) is provided outside the lead screw (403). A connecting rod (406) is rotatably connected to one end of the moving block (404) near the first fixed plate (5). The other end of the connecting rod (406) passes through the through groove (405) and is rotatably connected to one end of the first fixed plate (5).

4. The grain transport semi-trailer for easy unloading according to claim 3, characterized in that, The outer wall of the lead screw (403) is fitted with a suitable lead screw sleeve, and the outer wall of the lead screw sleeve is fixed to the inner wall of the moving block (404).

5. The grain transport semi-trailer for easy unloading according to claim 1, characterized in that, The bottom of the interior of the semi-trailer (1) is fixed with a fixing block (3), and the top of the fixing block (3) is sloped (301).

6. The grain transport semi-trailer for easy unloading according to claim 3, characterized in that, A motor (402) is mounted on the bottom of the mounting plate (401), and the output shaft of the motor (402) is fixedly connected to the bottom of the lead screw (403).

7. The grain transport semi-trailer for easy unloading according to claim 1, characterized in that, The semi-trailer compartment (1) is provided with a double-opening sealed door (101) at one end away from the first fixed plate (5), and a baffle (103) is fixed at the top of the semi-trailer compartment (1) away from the double-opening sealed door (101).