A semi-trailer unloading device

Abstract

The utility model discloses a kind of semi-trailer unloading devices, belong to semi-trailer field, including semi-trailer, the top of semi-trailer is fixedly connected with vertical plate, the top of semi-trailer is rotatably connected with several conveying rollers;The top of semi-trailer is fixedly connected with two protective plates, the top inside of protective plate is fixedly connected with three electric push rods, the bottom output rod of electric push rod is fixedly connected with driving frame, the inside sliding connection of driving frame has two round rods;Through the cooperation of above each device, by setting object carrier plate, it is placed to predetermined position, by the cooperation of insert block and clamping groove to limit object carrier plate, not only improve the stability of object carrier plate in the process of transportation, also provide guarantee for the stable transportation of goods, the two protective plates of the top of semi-trailer can also play certain limiting effect to goods, reduce the collapse accident caused by goods due to inclination, greatly reduce the wobble of object carrier plate in the process of transportation.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, specifically a semi-trailer unloading device. 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. Semi-trailers are generally three-axle semi-trailers, and they come in many types, such as eleven-meter stake semi-trailers, thirteen-meter stake semi-trailers, and low-flatbed semi-trailers. They are heavy-duty transportation vehicles connected to the semi-trailer head by a towing pin.

[0003] An investigation revealed that a Chinese utility model patent discloses a semi-trailer unloading device (publication number: CN216861283U), which includes a placement component disposed on the semi-trailer body for placing a cargo box; a drive component disposed on the semi-trailer body for conveying the placement component; and a receiving component disposed at the end of the semi-trailer body away from the cab for receiving the placement component conveyed by the drive component, thereby guiding the cargo box to the ground.

[0004] Although the aforementioned patent uses a drive component to transmit power to the placement component, causing the placement component to slide down to the ground under the action of the receiving component, thus guiding the cargo box placed on the placement component from the semi-trailer to the ground and completing the unloading, the entire unloading process is simple and fast, greatly improving the semi-trailer's carrying efficiency. However, this design still has many problems. During transportation, it is difficult to guarantee the stability of the placement plate by relying solely on the fixing of nuts. In complex road conditions, the placement plate is prone to large-scale shaking, which may cause the placement plate to fall off the semi-trailer, thereby damaging the cargo. It is difficult to provide a guarantee for the stable transportation of goods.

[0005] Therefore, this utility model provides a semi-trailer unloading device to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a semi-trailer unloading device, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A semi-trailer unloading device includes a semi-trailer, a vertical plate is fixedly connected to the top of the semi-trailer, and a plurality of conveying rollers are rotatably connected to the top of the semi-trailer.

[0011] The semi-trailer has two protective plates fixedly connected to its top. Three electric push rods are fixedly connected to the inner top of the protective plates. A drive frame is fixedly connected to the bottom output rod of each electric push rod. Two round rods are slidably connected inside the drive frame. A fixing block is fixedly connected to the top of each round rod. The side of the fixing block near the conveyor roller is fixedly connected to the side of the protective plate away from the conveyor roller. An extension frame is fixedly connected to the bottom of each round rod. The side of the extension frame near the conveyor roller is fixedly connected to the side of the protective plate away from the conveyor roller.

[0012] As a preferred technical solution of this application, a limiting rod is fixedly connected to the side of the extension frame near the protective plate, and the side of the limiting rod away from the extension frame is fixedly connected to the side of the protective plate away from the conveying roller. A connecting frame is slidably connected to the outer surface of the limiting rod.

[0013] As a preferred technical solution of this application, the connecting frame is fixedly connected to the left and right sides of the connecting frame, the sliding frame is slidably connected to the outer surface of the drive frame, and the sliding frame is fixedly connected to the side of the conveying roller with an insert block.

[0014] As a preferred technical solution of this application, the semi-trailer is provided with a plurality of cargo plates on its top. The front and back of the cargo plates are provided with slots, the slots are inserted into the outer surface of the inserts, the left side of the cargo plate is provided with two insertion holes, and the right side of the cargo plate is fixedly connected with two pins.

[0015] As a preferred technical solution of this application, a guide plate is hinged to the right side of the semi-trailer, a motor is fixedly connected to the front of the guide plate, and a rotating shaft is fixedly connected to the output end of the motor via a coupling.

[0016] As a preferred technical solution of this application, two gears are fixedly connected to the outer surface of the rotating shaft, a number of rubber blocks are slidably connected inside the guide plate, and two connecting plates are fixedly connected to the right side of the rubber blocks.

[0017] As a preferred technical solution of this application, a rack is fixedly connected to the right side of the connecting plate, and the inside of the rack meshes with the outer surface of the gear.

[0018] (III) Beneficial Effects

[0019] By setting up a cargo platform and placing it in a predetermined position, the cargo platform is limited by the cooperation of the insert and the slot. This not only improves the stability of the cargo platform during transportation, but also ensures the stable transportation of goods. The two protective plates on the top of the semi-trailer can also limit the cargo to a certain extent, reducing the risk of collapse caused by tilting, and greatly reducing the shaking of the cargo platform during transportation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a semi-trailer unloading device.

[0021] Figure 2 This is a schematic diagram of the drive frame structure in a semi-trailer unloading device.

[0022] Figure 3 A schematic diagram of a sliding frame structure in a semi-trailer unloading device;

[0023] Figure 4 A schematic diagram of a slot structure in a semi-trailer unloading device;

[0024] Figure 5 A schematic diagram of a rubber block structure in a semi-trailer unloading device;

[0025] Figure 6 This is a schematic diagram of a gear structure in a semi-trailer unloading device.

[0026] In the picture:

[0027] 1. Vertical plate; 2. Semi-trailer; 3. Electric push rod; 4. Guide plate; 5. Motor; 6. Protective plate; 7. Cargo plate; 8. Fixing block; 9. Drive frame; 10. Sliding frame; 11. Limiting rod; 12. Connecting frame; 13. Extension frame; 14. Insert block; 15. Conveyor roller; 16. Insertion hole; 17. Slot; 18. Pin; 19. Connecting plate; 20. Rubber block; 21. Rack; 22. Rotating shaft; 23. Gear. Detailed Implementation

[0028] 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 protection scope of the present utility model.

[0029] This utility model provides a semi-trailer unloading device, such as... Figure 1-6 As shown, the semi-trailer unloading device includes a semi-trailer 2, a vertical plate 1 fixedly connected to the top of the semi-trailer 2, and a plurality of conveying rollers 15 rotatably connected to the top of the semi-trailer 2.

[0030] The semi-trailer 2 has two protective plates 6 fixedly connected to the top. Three electric push rods 3 are fixedly connected to the inner side of the top of the protective plates 6. The bottom output rod of the electric push rods 3 is fixedly connected to a drive frame 9. Two round rods are slidably connected inside the drive frame 9. A fixing block 8 is fixedly connected to the top of the round rods. The side of the fixing block 8 near the conveyor roller 15 is fixedly connected to the side of the protective plate 6 away from the conveyor roller 15. An extension frame 13 is fixedly connected to the bottom of the round rods. The side of the extension frame 13 near the conveyor roller 15 is fixedly connected to the side of the protective plate 6 away from the conveyor roller 15.

[0031] Specifically, by setting up the loading plate 7 and placing it in a predetermined position, the loading plate 7 is limited by the cooperation of the insert block 14 and the slot 17. This not only improves the stability of the loading plate 7 during transportation, but also provides a guarantee for the stable transportation of goods. The two protective plates 6 on the top of the semi-trailer 2 can also play a certain role in restricting the goods, reducing the collapse accident caused by the tilt of the goods, and greatly reducing the shaking of the loading plate 7 during transportation.

[0032] A limiting rod 11 is fixedly connected to the side of the extension frame 13 near the protective plate 6. The side of the limiting rod 11 away from the extension frame 13 is fixedly connected to the side of the protective plate 6 away from the conveyor roller 15. A connecting frame 12 is slidably connected to the outer surface of the limiting rod 11.

[0033] The connecting frame 12 has a sliding frame 10 fixedly connected to both the left and right sides. The sliding frame 10 is slidably connected to the outer surface of the drive frame 9. The sliding frame 10 has an insert block 14 fixedly connected to the side of the sliding frame 10 near the conveying roller 15.

[0034] Several cargo trays 7 are provided on the top of the semi-trailer 2. The front and back of the cargo trays 7 are provided with slots 17. The inside of the slots 17 is inserted into the outer surface of the insert block 14. Two insertion holes 16 are provided on the left side of the cargo trays 7, and two pins 18 are fixedly connected to the right side of the cargo trays 7.

[0035] The semi-trailer 2 has a guide plate 4 hinged to its right side. A motor 5 is fixedly connected to the front of the guide plate 4. A rotating shaft 22 is fixedly connected to the output end of the motor 5 via a coupling.

[0036] Two gears 23 are fixedly connected to the outer surface of the rotating shaft 22, and several rubber blocks 20 are slidably connected inside the guide plate 4. Two connecting plates 19 are fixedly connected to the right side of the rubber blocks 20.

[0037] A rack 21 is fixedly connected to the right side of the connecting plate 19, and the inside of the rack 21 meshes with the outer surface of the gear 23.

[0038] Specifically, to remove the carrying plate 7, first open the guide plate 4 outward, activate the electric push rod 3 to increase the extension length of the output rod, the electric push rod 3 drives the drive frame 9 to move downward along the round rod, the drive frame 9 drives the insert block 14 to move outward through the sliding frame 10 so that it is no longer stuck inside the slot 17, at this time activate the conveying roller 15 to convey the carrying plate 7 to the right, start the motor 5 to drive the rotating shaft 22 to rotate, the rotating shaft 22 drives the gear 23 to rotate, the gear 23 drives the rack 21 to move outward, the rack 21 drives the rubber block 20 to move outward through the connecting plate 19, thereby increasing the roughness of the surface of the guide plate 4 and slowing down the downward speed of the carrying plate 7.

[0039] 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 unloading device, comprising a semi-trailer (2), characterized in that: The top of the semi-trailer (2) is fixedly connected to a vertical plate (1), and the top of the semi-trailer (2) is rotatably connected to several conveying rollers (15). The semi-trailer (2) has two protective plates (6) fixedly connected to the top. Three electric push rods (3) are fixedly connected to the inner side of the top of the protective plates (6). The bottom output rod of the electric push rods (3) is fixedly connected to a drive frame (9). The drive frame (9) has two round rods slidably connected inside. The top of the round rods is fixedly connected to a fixing block (8). The side of the fixing block (8) near the conveyor roller (15) is fixedly connected to the side of the protective plate (6) away from the conveyor roller (15). The bottom of the round rods is fixedly connected to an extension frame (13). The side of the extension frame (13) near the conveyor roller (15) is fixedly connected to the side of the protective plate (6) away from the conveyor roller (15).

2. The semi-trailer unloading device according to claim 1, characterized in that: The extension frame (13) is fixedly connected to a limiting rod (11) on the side near the protective plate (6). The side of the limiting rod (11) away from the extension frame (13) is fixedly connected to the side of the protective plate (6) away from the conveying roller (15). A connecting frame (12) is slidably connected to the outer surface of the limiting rod (11).

3. A semi-trailer unloading device according to claim 2, characterized in that: The connecting frame (12) is fixedly connected to the sliding frame (10) on both the left and right sides. The sliding frame (10) is slidably connected to the outer surface of the drive frame (9). The sliding frame (10) is fixedly connected to the insert block (14) on the side near the conveying roller (15).

4. A semi-trailer unloading device according to claim 1, characterized in that: The semi-trailer (2) has several cargo plates (7) on top. The cargo plates (7) have slots (17) on both the front and back. The slots (17) are inserted into the outer surface of the insert block (14). The cargo plates (7) have two insertion holes (16) on the left side and two pins (18) fixedly connected to the right side of the cargo plates (7).

5. A semi-trailer unloading device according to claim 1, characterized in that: The semi-trailer (2) has a guide plate (4) hinged to its right side. A motor (5) is fixedly connected to the front of the guide plate (4). A rotating shaft (22) is fixedly connected to the output end of the motor (5) via a coupling.

6. A semi-trailer unloading device according to claim 5, characterized in that: Two gears (23) are fixedly connected to the outer surface of the rotating shaft (22), and several rubber blocks (20) are slidably connected inside the guide plate (4). Two connecting plates (19) are fixedly connected to the right side of the rubber blocks (20).

7. A semi-trailer unloading device according to claim 6, characterized in that: A rack (21) is fixedly connected to the right side of the connecting plate (19), and the inside of the rack (21) meshes with the outer surface of the gear (23).

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