Loading and unloading device of heavy-load cargo transport vehicle

Abstract

The utility model discloses a loading and unloading device of a heavy-load cargo transport vehicle, which belongs to the field of cargo loading and unloading and comprises two bases, hydraulic cylinders are fixedly connected onto the bases, butt joint mechanisms are arranged at output ends of the hydraulic cylinders and comprise lifting blocks, bearing blocks are fixedly connected onto side surfaces of the lifting blocks, and butt joint plates are fixedly connected onto tops of the lifting blocks. A conveying mechanism is arranged on the lifting block and comprises two mounting plates, and a certain included angle is formed between each mounting plate and the ground. The device has the beneficial effects that the butt joint mechanism, the conveying mechanism and the switching mechanism are arranged, a bearing block and the butt joint plate can be clamped at the tail ends of carriages with different heights through a lifting block, the tail ends of the carriages are borne, the carriages are prevented from inclining backwards when cargoes are carried, and the cargo loading and unloading safety is improved; goods can be conveniently loaded on the carriage, labor is saved, the conveying shaft can rotate freely during unloading, and unloading is convenient.

Description

Technical Field

[0001] This utility model relates to the field of cargo loading and unloading, and in particular to a loading and unloading device for heavy-duty cargo transport vehicles. Background Technology

[0002] With the rapid advancement of modern industry and infrastructure construction, the demand for transporting large and heavy goods continues to rise. Traditional large equipment transport vehicles still rely on manual handling for loading and unloading, a method that is time-consuming, labor-intensive, and highly dangerous.

[0003] Based on a review of existing technologies, current methods for loading and unloading heavy cargo require first moving the cargo to the rear of the truck bed, then moving and stacking it inside the truck bed. During this process, the truck bed may tip over, which is inconvenient, increases the risk of accidents, and is extremely physically demanding for the workers, resulting in high transportation costs. Therefore, there is a need for a loading and unloading device for heavy-duty cargo transport vehicles. Utility Model Content

[0004] The purpose of this utility model is to provide a loading and unloading device for heavy-duty cargo transport vehicles in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A loading and unloading device for a heavy-duty cargo transport vehicle includes two bases. A hydraulic cylinder is fixedly connected to each base. A docking mechanism is provided at the output end of the hydraulic cylinder. The docking mechanism includes a lifting block. A support block is fixedly connected to the side of the lifting block. A docking plate is fixedly connected to the top of the lifting block. A conveying mechanism is provided on the lifting block. The conveying mechanism includes two mounting plates. The mounting plates are at a certain angle to the ground. A hinge shaft is fixedly connected to one end of the top of the mounting plate. The hinge shaft is rotatably connected to the side of the lifting block away from the support block. Several conveying shafts are rotatably connected between the mounting plates. A switching mechanism is provided on the mounting plates to limit the rotation direction of the conveying shafts. A locking mechanism is provided on the mounting plates to lock the mounting plates to the bases.

[0007] Preferably, the switching mechanism includes a switching screw, which is threadedly connected to one side of the mounting plate. A push plate is rotatably connected to the switching screw and slidably connected inside the mounting plate. A plurality of elastic telescopic rods are fixedly connected to the end of the push plate away from the switching screw. A pawl is rotatably connected to the end of the elastic telescopic rod away from the push plate. A ratchet that cooperates with the pawl is fixedly connected to one end of the conveying shaft.

[0008] Preferably, the locking mechanism includes a connecting seat, which is fixedly connected to the bottom of the mounting plate. A swing rod is rotatably connected to the connecting seat, and a lead screw is threaded onto the swing rod. A locking head is fixedly connected to the end of the lead screw away from the swing rod. A locking block is fixedly connected to the base, and a limiting groove for accommodating the lead screw and the locking head is provided on the locking block.

[0009] Preferably, a fixing block is fixedly connected to the bottom of the mounting plate, and the fixing block has a U-shaped groove for accommodating the lead screw.

[0010] Preferably, the top of the docking plate is provided with an inclined surface, and rollers are rotatably connected between the lifting blocks.

[0011] Preferably, a mounting block is fixedly connected to one side of the bottom of the mounting plate, and rollers are installed on the base and the bottom of the mounting block.

[0012] The beneficial effects are as follows: The system is equipped with a docking mechanism, a conveying mechanism, and a switching mechanism. The lifting block allows the supporting block and the docking plate to be locked at different heights at the rear of the carriage, supporting the end of the carriage and preventing the carriage from tilting backward when handling goods, thus improving the safety of loading and unloading. The switching mechanism allows the conveyor shaft to rotate in one direction, making it easy to load goods into the carriage and saving effort. During unloading, the conveyor shaft can rotate freely, making unloading convenient.

[0013] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of a loading and unloading device for a heavy-duty cargo transport vehicle according to the present invention;

[0016] Figure 2 This is a bottom side schematic diagram of a loading and unloading device for a heavy-duty cargo transport vehicle according to the present invention;

[0017] Figure 3 This is a schematic diagram of the working state of the loading and unloading device for a heavy-duty cargo transport vehicle described in this utility model;

[0018] Figure 4 This is a schematic diagram showing the relative positions of the base, docking mechanism, and locking mechanism of a loading and unloading device for a heavy-duty cargo transport vehicle as described in this utility model;

[0019] Figure 5This is a schematic diagram showing the connection between the switching mechanism and the conveyor shaft of the loading and unloading device for a heavy-duty cargo transport vehicle according to this utility model;

[0020] Figure 6 This is a schematic diagram of the switching mechanism of a loading and unloading device for a heavy-duty cargo transport vehicle as described in this utility model.

[0021] The reference numerals in the attached drawings are explained as follows: 101, base; 102, hydraulic cylinder; 103, locking block; 104, limiting groove; 105, carriage; 201, lifting block; 202, supporting block; 203, docking plate; 204, inclined plane; 205, roller; 301, mounting plate; 302, hinge shaft; 303, conveying shaft; 304, mounting block; 305, roller; 401, switching screw; 402, rotating handle; 403, push plate; 404, elastic telescopic rod; 405, pawl; 406, ratchet; 501, connecting seat; 502, swing rod; 503, lead screw; 504, locking head; 505, fixing block. 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] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figure 1 — Figure 6As shown, a loading and unloading device for a heavy-duty cargo transport vehicle includes two bases 101. A hydraulic cylinder 102 is bolted to each base 101. A docking mechanism is provided at the output end of each hydraulic cylinder 102. The docking mechanism includes a lifting block 201. A support block 202 is bolted to the side of the lifting block 201. A docking plate 203 is adhered to the top of the lifting block 201. The docking plate 203 has a certain degree of elasticity and friction, facilitating its locking at the rear of the cargo compartment 105 and preventing slippage under horizontal force. A conveying mechanism is provided on the lifting block 201. The conveying mechanism includes... Two mounting plates 301 are arranged at a certain angle to the ground. A hinge shaft 302 is bolted to one end of the top of the mounting plate 301. The hinge shaft 302 is rotatably connected to the side of the lifting block 201 away from the support block 202. Several conveying shafts 303 are rotatably connected between the mounting plates 301. Anti-slip pads are provided on the conveying shafts 303. A switching mechanism is provided on the mounting plate 301 to limit the rotation direction of the conveying shafts 303. A locking mechanism is provided on the mounting plate 301 to lock the mounting plate 301 to the base 101.

[0026] In this embodiment, the switching mechanism includes a switching screw 401. One end of the switching screw 401 is bolted to a rotating handle 402. The switching screw 401 is threaded to one side of the mounting plate 301. A push plate 403 is rotatably connected to the switching screw 401. A cavity is provided inside the mounting plate 301. The push plate 403 is slidably connected inside the mounting plate 301. The cavity inside the mounting plate 301 is used to guide the sliding of the push plate 403. The end of the push plate 403 away from the switching screw 401 is bolted to several elastic telescopic rods 404. The elastic telescopic rods 404 are configured as nested sliding rods with springs installed inside, which can accumulate sufficient elastic potential energy. The elastic telescopic rods 404 cause some pawls 405 that cannot smoothly enter the teeth of the ratchet 406 to abut against the ratchet 406. At end 06, once the ratchet 406 rotates to a certain angle, the elastic potential energy of the elastic telescopic rod 404 is released, causing the pawl 405 to engage with the ratchet 406. The end of the elastic telescopic rod 404 away from the push plate 403 is rotatably connected to the pawl 405. One end of the conveyor shaft 303 is bolted to the ratchet 406 that engages with the pawl 405. The arrangement of the pawl 405 and the ratchet 406 limits the rotation direction of the conveyor shaft 303. When the pawl 405 and the ratchet 406 are in the overlapping position, the rotation direction of the ratchet 406 and the conveyor shaft 303 can only move the goods from the bottom to the top of the mounting plate 301, preventing the goods from rolling off. When the pawl 405 disengages from the ratchet 406, the conveyor shaft 303 can rotate freely, facilitating the removal of goods from the carriage 105 during unloading.

[0027] In this embodiment, the locking mechanism includes a connecting seat 501, which is bolted to the bottom of the mounting plate 301. A swing rod 502 is rotatably connected to the connecting seat 501, and a lead screw 503 is threaded onto the swing rod 502. A locking head 504 is bolted to the end of the lead screw 503 away from the swing rod 502. A locking block 103 is bolted to the base 101. The locking block 103 has a limiting groove 104 for accommodating the lead screw 503 and the locking head 504. When the locking head 504 and the lead screw 503 are engaged in the limiting groove 104, the mounting plate 301 and the lifting block 201 will be locked, forming a stable triangular structure, further improving structural stability, preventing the carriage 105 from tipping over, and avoiding shaking when transporting goods.

[0028] In this embodiment, a fixing block 505 is bolted to the bottom of the mounting plate 301. The fixing block 505 has a U-shaped groove for accommodating the lead screw 503. A soft pad is provided on the inner side of the fixing block 505. The fixing block 505 serves to store the lead screw 503 and the locking head 504. When the device is not in use, the lead screw 503 is locked into the fixing block 505 to avoid inconvenience or damage to the lead screw 503 when moving the device.

[0029] In this embodiment, the top of the docking plate 203 is provided with an inclined surface 204. The inclined surface 204 facilitates the smooth entry and exit of goods into and out of the carriage 105. A roller 205 is rotatably connected between the lifting blocks 201. The roller 205 is used to support the goods that have moved to the top position of the lifting block 201 on the conveyor shaft 303, so as to facilitate the entry of goods into the carriage 105.

[0030] In this embodiment, a mounting block 304 is bolted to one side of the bottom of the mounting plate 301. Rollers 305 are installed on the bottom of the base 101 and the mounting block 304. The rollers 305 facilitate the movement of the device to the rear of the carriage 105 by the staff.

[0031] Working principle: When using this device, the base 101 is moved to the rear end of the carriage 105, and the hydraulic cylinder 102 is activated. The hydraulic cylinder 102 lifts the lifting block 201, aligning the gap between the support block 202 on the lifting block 201 and the docking plate 203 with the bottom of the rear end of the carriage 105 and inserting it. At this time, the docking plate 203 is located inside the carriage 105, and the support block 202 supports the rear of the carriage 105 to prevent backward tilting during loading and unloading of goods. The lead screw 503 is then pulled out, and rotating the lead screw 503 allows the locking head 504 to align with the limiting groove 104 and accurately engage, ensuring the stability of the mounting plate 301 under heavy pressure. When loading goods, the handle 402 needs to be rotated. The handle 402 pushes the push plate 403, which, through the elastic telescopic rod 404, pushes each pawl 405 into the tooth gap of the ratchet 406, so that the rotation direction of the conveyor shaft 303 can only guide the goods to move from bottom to top, preventing slippage during the loading of goods into the carriage 105. The staff can push the goods to move them into the carriage 105. After loading is completed, the lifting block 201 is pulled out and the base 101 is moved to one side, thus completing the loading operation. When unloading is required, the handle 402 is rotated in the opposite direction to disengage the pawl 405 from the ratchet 406, making it easier to guide the goods in the carriage 105 to the bottom of the mounting plate 301 for unloading.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A loading and unloading device for a heavy-duty cargo transport vehicle, comprising two bases (101), wherein a hydraulic cylinder (102) is fixedly connected to each base (101), and a docking mechanism is provided at the output end of each hydraulic cylinder (102), wherein the docking mechanism includes a lifting block (201), characterized in that: The lifting block (201) is fixedly connected to a support block (202) on its side, and a docking plate (203) is fixedly connected to the top of the lifting block (201). A conveying mechanism is provided on the lifting block (201). The conveying mechanism includes two mounting plates (301). The mounting plates (301) are at a certain angle to the ground. A hinge shaft (302) is fixedly connected to one end of the top of the mounting plate (301). The hinge shaft (302) is rotatably connected to the side of the lifting block (201) away from the support block (202). A plurality of conveying shafts (303) are rotatably connected between the mounting plates (301). A switching mechanism is provided on the mounting plate (301). The switching mechanism is used to limit the rotation direction of the conveying shafts (303). A locking mechanism is provided on the mounting plate (301). The locking mechanism is used to lock the mounting plate (301) and the base (101).

2. A heavy goods vehicle loading and unloading device according to claim 1, characterised in that: The switching mechanism includes a switching screw (401), which is threadedly connected to one side of the mounting plate (301). A push plate (403) is rotatably connected to the switching screw (401). The push plate (403) is slidably connected inside the mounting plate (301). A plurality of elastic telescopic rods (404) are fixedly connected to one end of the push plate (403) away from the switching screw (401). A pawl (405) is rotatably connected to one end of the elastic telescopic rod (404) away from the push plate (403). A ratchet (406) that cooperates with the pawl (405) is fixedly connected to one end of the conveying shaft (303).

3. A heavy cargo transport vehicle loading and unloading device according to claim 1, characterized in that: The locking mechanism includes a connecting seat (501), which is fixedly connected to the bottom of the mounting plate (301). A swing rod (502) is rotatably connected to the connecting seat (501). A lead screw (503) is threadedly connected to the swing rod (502). A locking head (504) is fixedly connected to one end of the lead screw (503) away from the swing rod (502). A locking block (103) is fixedly connected to the base (101). A limiting groove (104) is provided on the locking block (103) for accommodating the lead screw (503) and the locking head (504).

4. A heavy goods vehicle loading and unloading device according to claim 3, characterised in that: The mounting plate (301) is fixedly connected to a fixing block (505) at its bottom, and the fixing block (505) has a U-shaped groove for accommodating the lead screw (503).

5. A heavy cargo transporter loading and unloading device according to claim 1, characterized in that: The top of the docking plate (203) is provided with an inclined surface (204), and the lifting blocks (201) are rotatably connected by rollers (205).

6. A heavy cargo transporter loading and unloading device according to claim 1, characterized in that: A mounting block (304) is fixedly connected to one side of the bottom of the mounting plate (301), and rollers (305) are installed on the bottom of the base (101) and the mounting block (304).

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