A logistics vehicle unloading device for green logistics that improves unloading efficiency

Abstract

The present invention discloses a logistics vehicle unloading device for green logistics that improves unloading efficiency, specifically relating to the technical field of unloading devices. It includes a storage box for logistics unloading. An unloading mechanism is provided inside the storage box. There are two second sliding seats at the rear of the storage box. A fixed rod is fixedly provided at the rear of the second sliding seat. An installation pipe is sleeved outside the fixed rod. A protective plate that plays a blocking role is fixedly provided at the outer end of the installation pipe. By rotating the installation pipe, the protective plate fixed at the outer end of the installation pipe is driven to rotate, unfolding the protective plate that was originally folded at the rear of the storage box. During the unfolding process, the second sliding seat is slid, driving the fixed rod, the installation pipe, and the protective plate to move, so that the range after the two protective plates are unfolded is roughly the same as the width of the logistics vehicle. At this time, the protective plate plays the role of a guardrail, preventing the personnel carrying goods on the vehicle from falling off the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of unloading devices, and more specifically to a logistics vehicle unloading device for green logistics that improves unloading efficiency. Background Art

[0002] Logistics refers to the transportation and distribution of goods. In today's society, affected by online shopping, the logistics industry is very developed. And during the process of transporting and distributing goods, unloading is a very important link.

[0003] Simply put, unloading is to transport the goods to the destination and then carry them down from the transportation vehicle. In life, we often see relevant personnel carrying the goods on the vehicle in places such as shopping malls, warehouses, and express stations.

[0004] In the logistics industry, the most common transportation vehicle is the logistics vehicle. When unloading the goods on the logistics vehicle, generally more than two people need to cooperate with each other. One person on the vehicle picks up the goods and hands them to the people under the vehicle. However, there are some inconveniences during the unloading process.

[0005] Firstly, the height and size of logistics vehicles are different. For some higher vehicles, it is relatively inconvenient for unloading personnel to climb onto the vehicle to unload. Secondly, the people on the vehicle are at a higher height than the people under the vehicle. When carrying the goods and handing them to the people under the vehicle, they need to bend down, which is relatively inconvenient. And there are no protective measures set behind the vehicle, which is extremely likely to cause the people on the vehicle to fall off the vehicle and get injured. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a logistics vehicle unloading device for green logistics that improves unloading efficiency to solve the problems that appear in the above-mentioned background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A logistics vehicle unloading device for green logistics that improves unloading efficiency, including a storage box for logistics unloading. An unloading mechanism is provided inside the storage box. Two second sliding seats are provided at the rear side of the storage box and are movably connected to the second sliding seats through damping rails, so as to be able to adjust the position of the second sliding seats. A fixed rod is fixedly provided at the rear side of the second sliding seat. An installation pipe is sleeved outside the fixed rod and is movably connected to the installation pipe through a damping bearing. A protective plate for blocking is fixedly provided at the outer end of the installation pipe. One end of each of the two protective plates extends to both sides of the storage box respectively, and the protective plates play a protective role for the people on the logistics vehicle. The linear distances from the two installation pipes to the storage box are different, and the position of one installation pipe is more backward than that of the other installation pipe, so as to be able to fold and store the two protective plates simultaneously.

[0008] Further, a cover plate for repairing the internal components of the storage box is provided at the top of the storage box and is movably connected to the cover plate through a hinge. An extension opening is provided on the front side of the storage box. The unloading mechanism includes a fixed shaft, and both ends of the fixed shaft are movably connected to the inner walls on both sides of the storage box through bearings. An extension cloth for guiding goods is fixedly provided at the outer end of the fixed shaft, and the extension cloth is wound around the outer end of the fixed shaft;

[0009] A sleeve is fixedly provided on one side of the storage box. One end of the fixed shaft extends into the sleeve. A first fastening bolt for fixing is provided at the top of the sleeve. One end of the first fastening bolt extends into the sleeve and contacts the outer end of the fixed shaft. The first fastening bolt is threadedly connected to the fixed shaft. Tightening the first fastening bolt can fix the fixed shaft. The other end of the fixed shaft extends to the other side of the storage box and is fixedly provided with a runner. A handle for driving the runner to rotate is provided at the edge of one side of the runner and is movably connected to the handle through a bearing. By rotating the handle, the runner and the fixed shaft can be driven.

[0010] Further, one end of the extension cloth extends to the front side of the storage box through the extension opening and is fixedly provided with a hollow rod. A plurality of suction cups are fixedly provided at the bottom end of the hollow rod. A sealing ring for sealing is fixedly provided at the bottom end of the suction cup. The sealing performance of the suction cup is improved through the sealing ring. A gas guide pipe for pumping air is fixedly provided at the bottom end of the hollow rod. A valve is fixedly provided on the gas guide pipe. The air inside the hollow rod can be extracted by using the gas guide pipe. A long-term fixing plate for fixing to the ground is provided at the outer end of the hollow rod and is connected to the long-term fixing plate through bolts;

[0011] A buffer plate for buffering is provided at the top end of the hollow rod. Connecting arms are fixedly provided on both sides of the buffer plate. One end of each of the two connecting arms extends to both ends of the hollow rod and is movably connected to the hollow rod through a rotating shaft. The buffer plate can rotate around the hollow rod and adjust its angle accordingly. A second fastening bolt is provided on the connecting arm. The second fastening bolt penetrates through the connecting arm and contacts the hollow rod. The second fastening bolt is threadedly connected to the connecting arm.

[0012] Further, mounting grooves are provided on the extension cloth. A plurality of central shafts are provided inside the mounting grooves. Connecting ports for connection are provided at both ends of the central shafts. Both sides inside the mounting grooves extend into the two connecting ports respectively and are connected to the central shafts through bolts. An outer tube is provided at the outer end of the central shaft and is movably connected to the outer tube through a bearing. The goods move downward along the extension cloth through the rolling of the outer tube. Limit plates for blocking are fixedly provided at both ends of the outer tube. The limit plates restrict the movement of the goods;

[0013] The extension cloth includes a tensile fiber cloth with high strength. A waterproof cloth is fixedly provided at the top end of the tensile fiber cloth, and a flame-retardant fiber cloth is fixedly provided at the bottom end of the tensile fiber cloth, so that the extension cloth has a certain strength and can be waterproof and flame-retardant.

[0014] Further, a U-shaped clamping plate for fixing to a logistics vehicle is provided at the bottom of the storage box. A plurality of third fastening bolts are provided at the bottom end of the U-shaped clamping plate. One end of the third fastening bolt extends into the U-shaped clamping plate and is threadedly connected to the U-shaped clamping plate. After tightening the fastening bolt, the U-shaped clamping plate can be fixed to the logistics vehicle.

[0015] Further, two end plates for limiting are fixedly provided at the top end of the U-shaped clamping plate. Two first sliding seats are provided at the top end of the U-shaped clamping plate and are connected to the first sliding seats through slide rails. The first sliding seats are arranged between the two end plates. Two push rods are provided at the top end of each first sliding seat. The two ends of the push rod are respectively connected to the bottom end of the storage box and the top end of the first sliding seat through movable hinge seats. By sliding the first sliding seat to push the push rod, the storage box can be driven to move up and down.

[0016] Further, a second screw rod is provided between the two end plates. The second screw rod passes through the two first sliding seats and is threadedly connected to the first sliding seats. Therefore, when the second screw rod rotates, the first sliding seats will be driven to move. The two ends of the second screw rod are respectively movably connected to the two end plates through bearings. One end of the second screw rod passes through one of the end plates and is fixedly provided with a rotating head for facilitating the rotation of the second screw rod.

[0017] Further, two bottom plates are provided at the bottom of the U-shaped clamping plate. Two universal wheels for facilitating the movement of the bottom plates are installed at the bottom ends of the bottom plates. A handle for pushing the bottom plates is fixedly provided at the top end of the bottom plates. A support plate is provided at the top end of the bottom plates. The two ends of the support plate are respectively connected to the bottom end of the U-shaped clamping plate and the top end of the bottom plates through movable hinge seats. By moving the bottom plates, the support plate can be pushed and the U-shaped clamping plate can be driven to move up and down.

[0018] Further, a mounting head is fixedly provided on the front side of the U-shaped clamping plate. An outer ring is sleeved on the outer end of the mounting head and is movably connected to the outer ring through a damping rotating shaft. A first threaded rod is fixedly provided on the outer end of the outer ring. One end of the first threaded rod is sleeved with a sleeve for adjusting the length and is threadedly connected to the sleeve.

[0019] Furthermore, a rotating ring for angle adjustment is sleeved on the outer end of the sleeve and is movably connected to the rotating ring through a bearing. A pedal for placing the feet is provided on the rotating ring. The unloading personnel can step on the top of the pedal to climb onto the logistics vehicle, which is more convenient. A fixing opening is provided on the pedal, and the rotating ring is arranged inside the fixing opening. The outer end of the rotating ring is movably connected to the inner wall of the fixing opening through a damping rotating shaft. A circular supporting plate for reinforcement is fixedly provided at the bottom end of the sleeve, and the top end of the circular supporting plate is in contact with the bottom end of the pedal. The circular supporting plate plays a role in supporting the pedal.

[0020] Technical effects and advantages of the present invention:

[0021] 1. In the present invention, by installing the storage box on the logistics vehicle and then rotating the installation pipe, the protective plate fixed to the outer end of the installation pipe is driven to rotate, and the protective plate originally folded at the rear side of the storage box is unfolded. During the unfolding process, the second sliding seat is slid, driving the fixing rod, the installation pipe and the protective plate to move, so that the range after the two protective plates are unfolded is approximately the same as the width of the logistics vehicle. At this time, the protective plate plays the role of a guardrail to prevent the personnel carrying goods on the vehicle from falling off the vehicle.

[0022] 2. In the present invention, the extension cloth originally folded inside the storage box is pulled out, and one end of it is fixed to the ground, so that a slope is formed between the ground and the storage box, and the goods slide along the slope for unloading. According to the actual situation, one end of the extension cloth can be fixed at a position where goods are stored far away from the storage box, so that the goods can be directly unloaded along the extension cloth here, saving the process of manual handling by the people under the vehicle and making the unloading more convenient. In addition, in this unloading method, the movement of the goods completely depends on its own gravity and does not require electric assistance, which is more environmentally friendly.

[0023] 3. In the present invention, by rotating the rotating head, the second screw rod is driven to rotate. After the second screw rod rotates, it drives the first sliding seat to move. The first sliding seat pushes the push rod, and then the storage box is pushed upward through the push rod to adjust the height of the storage box, and then the height of the end of the extension cloth close to the storage box is adjusted, so that the heights of the two match the height of the unloading personnel on the vehicle, facilitating them to directly place the goods at the end of the extension cloth close to the storage box without having to bend down frequently during unloading, which is more labor-saving.

[0024] 4. In the present invention, by providing a first threaded rod and a sleeve on the front side of the U-shaped clamping plate, the first threaded rod and the sleeve are adjusted to be perpendicular to the ground, and then the sleeve is rotated to adjust the height of the pedal. The pedal can be used as a step between the logistics vehicle and the ground. The personnel who need to get on the vehicle for unloading can step on the top of the pedal and then climb onto the logistics vehicle. When the logistics vehicle is relatively high, it is more convenient to get on the vehicle in this way, and thus the unloading is made more convenient. Description of the drawings

[0025] Figure 1 Isometric view of the present invention;

[0026] Figure 2 Isometric view of the present invention;

[0027] Figure 3 Isometric view of the contracted state of the present invention;

[0028] Figure 4 For the present invention Figure 2 Enlarged view of part A in;

[0029] Figure 5 Cross-sectional view of the storage box of the present invention;

[0030] Figure 6 Isometric view of the hollow rod of the present invention;

[0031] Figure 7 Isometric view of the outer tube of the present invention;

[0032] Figure 8 For the present invention Figure 6 Enlarged view of part B in;

[0033] Figure 9 Cross-sectional view of the extension cloth of the present invention;

[0034] Figure 10 Isometric view of the U-shaped clamping plate of the present invention;

[0035] Figure 11 For the present invention Figure 10 Enlarged view of part C in;

[0036] Figure 12 Isometric view of the folded state of the first bolt of the present invention;

[0037] Figure 13 Isometric view of the bottom plate of the present invention.

[0038] The reference numerals are: 1, storage box; 2, runner; 3, extension cloth; 4, buffer plate; 5, first screw; 6, sleeve; 7, pedal; 8, universal wheel; 9, bottom plate; 10, handle; 11, support plate; 12, U-shaped clamping plate; 13, end plate; 14, first sliding seat; 15, protection plate; 16, push rod; 17, sleeve; 18, extension port; 19, outer tube; 20, cover plate; 21, hollow rod; 22, second sliding seat; 23, fixed rod; 24, mounting tube; 25, limiting plate; 26, central axis; 27, connection port; 28, outer ring; 29, mounting head; 30, circular support plate; 31, connecting arm; 32, mounting groove; 33, suction cup; 34, long-term fixing plate; 35, air guide tube; 36, sealing ring; 37, waterproof cloth; 38, tensile fiber cloth; 39, flame retardant fiber cloth; 40, second screw; 41, rotating head; 42, rotating ring; 43, fixing port; 44, fixed shaft; 45, handle. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Referring to the attached drawings of the specification Figure 1-13 , a unloading device for a green logistics vehicle for improving unloading efficiency in this embodiment includes a storage box 1 for logistics unloading. An unloading mechanism is provided inside the storage box 1. Two second sliding seats 22 are provided at the rear side of the storage box 1 and are movably connected to the second sliding seats 22 through damping slide rails, so that the position of the second sliding seats 22 can be adjusted. A fixed rod 23 is fixedly provided at the rear side of the second sliding seats 22. An outer end of the fixed rod 23 is sleeved with a mounting tube 24 and is movably connected to the mounting tube 24 through a damping bearing. A protection plate 15 for blocking is fixedly provided at the outer end of the mounting tube 24. One ends of the two protection plates 15 respectively extend to both sides of the storage box 1, and the protection plates 15 play a role in protecting the people on the logistics vehicle. The linear distances from the two mounting tubes 24 to the storage box 1 are different, and the position of one mounting tube 24 is more backward than that of the other mounting tube 24, so as to be able to fold and store the two protection plates 15 simultaneously.

[0041] Install and fix the storage box 1 at the rear side of the logistics vehicle. If the logistics vehicle has a carriage, the storage box 1 is installed at the opening at the rear side of the carriage. After installing the storage box 1, adjust the height of the storage box 1. Then rotate the installation pipe 24 to drive the protective plate 15 fixed to the outer end of the installation pipe 24 to rotate, and appropriately unfold the protective plate 15 originally folded at the rear side of the storage box 1. Then slide the second sliding seat 22 according to the width of the logistics vehicle to drive the fixed rod 23, the installation pipe 24 and the protective plate 15 to move. Finally, continue to rotate the installation pipe 24 to fully unfold the protective plate 15 so that the protective plate 15 is parallel to the storage box 1. One end of the protective plate 15 away from the storage box 1 is the distal end. After adjusting the position of the second sliding seat 22 and fully unfolding the protective plate 15, the distance between the distal ends of the two protective plates 15 should be approximately the same as the width of the logistics vehicle or the width of the carriage. At this time, the unfolded protective plate 15 serves as a guardrail to prevent the personnel carrying goods on the vehicle from falling off the vehicle.

[0042] Transport the goods on the logistics vehicle to the ground by using the storage box 1 and various components inside it. As Figure 1 、 2 shown in Fig. 5, a cover plate 20 for inspecting the internal components of the storage box 1 is provided at the top of the storage box 1 and is movably connected to the cover plate 20 through a hinge. An extension opening 18 is provided at the front side of the storage box 1. The unloading mechanism includes a fixed shaft 44, and both ends of the fixed shaft 44 are movably connected to the inner walls on both sides of the storage box 1 through bearings. An extension cloth 3 for guiding the goods is fixedly provided at the outer end of the fixed shaft 44, and the extension cloth 3 is wound around the outer end of the fixed shaft 44;

[0043] A sleeve 17 is fixedly provided on one side of the storage box 1. One end of the fixed shaft 44 extends into the sleeve 17. A first fastening bolt for fixing is provided at the top of the sleeve 17. One end of the first fastening bolt extends into the sleeve 17 and contacts the outer end of the fixed shaft 44. The first fastening bolt is threadedly connected to the fixed shaft 44. Tightening the first fastening bolt can fix the fixed shaft 44. The other end of the fixed shaft 44 extends to the other side of the storage box 1 and is fixedly provided with a runner 2. A handle 45 for facilitating the rotation of the runner 2 is provided at the edge of one side of the runner 2 and is movably connected to the handle 45 through a bearing. By rotating the handle 45, the runner 2 and the fixed shaft 44 can be driven.

[0044] After installing the storage box 1 on the logistics vehicle, it is necessary to pull out the extension cloth 3 originally wound around the outer end of the fixed shaft 44. Pull the extension cloth 3 to pull out the extension cloth 3 stored inside the storage box 1 through the extension port 18 to the rear side of the logistics vehicle, and fix one end of the extension cloth 3 to the ground. After one end of the extension cloth 3 is fixed, turn the runner 2 through the handle 45 to drive the fixed shaft 44 to rotate in the reverse direction. After the fixed shaft 44 rotates in reverse, it pulls the extension cloth 3 back, making the extension cloth 3 taut. Finally, tighten the first fastening bolt to fix the fixed shaft 44 and the extension cloth 3, so that the extension cloth 3 maintains a taut state. The two ends of the extension cloth 3 are respectively connected to the storage box 1 on the logistics vehicle and the ground, and form a slope between the two. If the position where the goods are stored is far from the logistics vehicle and the logistics vehicle is difficult to approach the position where the goods are stored, at this time, one end of the extension cloth 3 can be fixed at the position where the goods are stored far from the storage box 1 according to the actual situation, so that the goods can be directly unloaded along the extension cloth 3 here, saving the process of manual handling by the people under the vehicle and making the unloading more convenient. However, it is necessary to ensure that the position where the goods are stored is lower than the position where the storage box 1 is located.

[0045] Users can select a suitable fixing method according to the actual situation to fix the extension cloth 3. For example, Figure 6 , 8 As shown, one end of the extension cloth 3 extends to the front side of the storage box 1 through the extension port 18 and is fixedly provided with a hollow rod 21. A plurality of suction cups 33 are fixedly provided at the bottom end of the hollow rod 21. A sealing ring 36 for sealing is fixedly provided at the bottom end of the suction cup 33. The sealing performance of the suction cup 33 is improved through the sealing ring 36. A trachea 35 for air extraction is fixedly provided at the bottom end of the hollow rod 21. A valve is fixedly provided on the trachea 35. The air inside the hollow rod 21 can be extracted by using the trachea 35. A long-term fixing plate 34 for fixing to the ground is provided at the outer end of the hollow rod 21 and is connected to the long-term fixing plate 34 through bolts;

[0046] A buffer plate 4 for buffering is provided at the top end of the hollow rod 21. Connecting arms 31 are fixedly provided on both sides of the buffer plate 4. One end of each of the two connecting arms 31 extends to both ends of the hollow rod 21 and is movably connected to the hollow rod 21 through a rotating shaft. The buffer plate 4 can rotate around the hollow rod 21 and adjust its angle accordingly. A second fastening bolt is provided on the connecting arm 31. The second fastening bolt penetrates through the connecting arm 31 and contacts the hollow rod 21. The second fastening bolt is threadedly connected to the connecting arm 31.

[0047] When fixing one end of the extension cloth 3 to the ground, the following two fixing methods can be selected according to the actual situation:

[0048] Embodiment 1: Temporary fixation. If the unloading location is only temporarily used for unloading and not a fixed unloading position, a temporary fixation method can be selected. Moreover, the ground here needs to be smooth. Buckle the suction cup 33 at the bottom end of the hollow rod 21 on the smooth ground. The sealing ring 36 at the bottom end of the suction cup 33 plays a sealing role. Subsequently, draw out the air inside the hollow rod 21 through the air duct 35, so that the air pressure inside the hollow rod 21 decreases. Then the air pressure inside the suction cup 33 also decreases accordingly. Utilize the negative pressure inside the suction cup 33 to adsorb the suction cup 33 and the hollow rod 21 on the smooth ground. After unloading, open the valve on the air duct 35 to make the air pressure inside the hollow rod 21 and the suction cup 33 return to normal, and then the hollow rod 21 can be separated from the ground.

[0049] Embodiment 2: Long-term fixation. If the unloading position is fixed, for example, in a shopping mall, warehouse or other places, there is an area that is used for unloading for a long time, and all incoming goods are unloaded here, then a long-term fixation method can be selected. First, fixedly connect the long-term fixing plate 34 and the hollow rod 21 through bolts. Then place the long-term fixing plate 34 on the ground at the unloading position, and connect and fix the long-term fixing plate 34 to the ground by drilling holes in the ground. Thus, the hollow rod 21 is fixedly connected to the ground for a long time, and the unloading device is also fixed here for long-term use.

[0050] After the hollow rod 21 is fixed, the goods can be slid down along the slope formed by the extension cloth 3, from the high place where the storage box 1 is located and slide along the extension cloth 3 to the ground where the hollow rod 21 is located. A buffer plate 4 is provided at the top end of the hollow rod 21. The buffer plate 4 can rotate around the hollow rod 21. Therefore, when unloading, the buffer plate 4 can be rotated and fixed, so that the buffer plate 4 forms a slope in the opposite direction to the extension cloth 3. After the goods move to the position where the buffer plate 4 is located, they will continue to move up along the buffer plate 4 until they completely stop moving. The presence of the buffer plate 4 plays a role in blocking the goods, which can not only stop the moving goods but also avoid damage caused by forced blocking of the goods resulting in collisions.

[0051] To reduce the friction when the goods move along the extension cloth 3, as Figure 5 、 6 、shown in Figures 7 and 9, installation grooves 32 are formed in the extension cloth 3. A plurality of central shafts 26 are provided inside the installation grooves 32. Connecting ports 27 for connection are formed at both ends of the central shafts 26. Both sides inside the installation grooves 32 extend into the two connecting ports 27 respectively and are fixedly connected to the central shafts 26 through bolts. Outer tubes 19 are provided at the outer ends of the central shafts 26 and are movably connected to the outer tubes 19 through bearings. The goods move downward along the extension cloth 3 by rolling through the outer tubes 19. Limit plates 25 for blocking are fixedly provided at both ends of the outer tubes 19, and the limit plates 25 limit the movement of the goods.

[0052] The extension cloth 3 includes a tensile fiber cloth 38 with relatively high strength. A waterproof cloth 37 is fixedly provided at the top end of the tensile fiber cloth 38, and a flame-retardant fiber cloth 39 is fixedly provided at the bottom end of the tensile fiber cloth 38, so that the extension cloth 3 has a certain strength and can be waterproof and flame-retardant.

[0053] A plurality of central shafts 26 are installed in the installation groove 32 at the middle part of the extension cloth 3. After the extension cloth 3 forms a unloading ramp, the central shafts 26 and the outer pipes 19 at their outer ends are evenly arranged on the ramp. At this time, the goods are placed at one end of the extension cloth 3 close to the storage box 1. After the goods are released, the goods will slide downward along the extension cloth 3 under the action of their own gravity. During this process, the moving goods contact the outer pipes 19, driving the outer pipes 19 to rotate, thereby changing the sliding friction during the movement of the goods into rolling friction, reducing the frictional force and making the movement of the goods smoother. At the same time, the limiting plates 25 at both ends of the outer pipes 19 play a limiting role, which can prevent the goods from falling midway during the movement along the extension cloth 3. Moreover, in this unloading method, the movement of the goods completely depends on their own gravity and does not require electric power assistance, which is more environmentally friendly.

[0054] Since the extension cloth 3 is jointly composed of a tensile fiber cloth 38, a waterproof cloth 37, and a flame-retardant fiber cloth 39, the tensile fiber cloth 38 makes the extension cloth 3 have relatively high strength, strong tensile ability and is not easily damaged. The side where the waterproof cloth 37 is located faces upward, which can play a role in preventing rain, and the flame-retardant fiber cloth 39 can prevent the extension cloth 3 from burning on a large scale, improving fire safety.

[0055] During the use process, the storage box 1 needs to be temporarily installed on a logistics vehicle, such as Figure 10 、 12 As shown in 13, a U-shaped clamping plate 12 for fixing to the logistics vehicle is provided at the bottom of the storage box 1. A plurality of third fastening bolts are provided at the bottom end of the U-shaped clamping plate 12. One end of the third fastening bolt extends into the U-shaped clamping plate 12 and is threadedly connected to the U-shaped clamping plate 12. After tightening the fastening bolts, the U-shaped clamping plate 12 can be fixed on the logistics vehicle.

[0056] Two limiting end plates 13 are fixedly provided at the top end of the U-shaped clamping plate 12. Two first sliding seats 14 are provided at the top end of the U-shaped clamping plate 12 and are connected to the first sliding seats 14 through sliding rails. The first sliding seats 14 are arranged between the two end plates 13. Two push rods 16 are provided at the top end of each first sliding seat 14. The two ends of the push rods 16 are respectively connected to the bottom end of the storage box 1 and the top end of the first sliding seat 14 through movable hinge seats. By sliding the first sliding seats 14 to push the push rods 16, the storage box 1 can be driven to move up and down.

[0057] A second screw rod 40 is arranged between the two end plates 13. The second screw rod 40 penetrates through the two first sliding seats 14 and is threadedly connected to the first sliding seats 14. Therefore, when the second screw rod 40 rotates, it will drive the first sliding seats 14 to move. The two ends of the second screw rod 40 are respectively movably connected to the two end plates 13 through bearings. One end of the second screw rod 40 penetrates through one of the end plates 13 and is fixedly provided with a rotating head 41 for facilitating the rotation of the second screw rod 40.

[0058] The unloading device needs to move flexibly. Therefore, two bottom plates 9 are arranged at the bottom of the U-shaped clamping plate 12. Two universal wheels 8 for facilitating the movement of the bottom plates 9 are installed at the bottom ends of the bottom plates 9. A handle 10 for pushing the bottom plates 9 is fixedly provided at the top ends of the bottom plates 9. A support plate 11 is arranged at the top ends of the bottom plates 9. The two ends of the support plate 11 are respectively connected to the bottom end of the U-shaped clamping plate 12 and the top end of the bottom plates 9 through movable hinge seats. By moving the bottom plates 9, the support plate 11 can be pushed and the U-shaped clamping plate 12 can be driven to move up and down.

[0059] When not in use, the unloading device is in a contracted state, saving space. When unloading is required, the logistics vehicle stops at the unloading position. Since the universal wheels 8 are installed at the bottom ends of the bottom plates 9, the device can be pushed and moved freely. The device is pushed to the rear side of the logistics vehicle, and then the two bottom plates 9 are pushed horizontally so that the two bottom plates 9 approach each other. As the bottom plates 9 move, the support plate 11 that was originally in a nearly horizontal state will lift upward and push the U-shaped clamping plate 12 to move upward until the U-shaped clamping plate 12 moves to the same height as the rear side of the vehicle body. Then the device is pushed to move, and the rear edge of the logistics vehicle is clamped into the U-shaped clamping plate 12. The third fastening bolt at the bottom end of the U-shaped clamping plate 12 is tightened, and the device can be fixed to the vehicle body of the logistics vehicle, and then the storage box 1 can be installed on the logistics vehicle.

[0060] Subsequently, the rotating head 41 is rotated to drive the second screw rod 40 to rotate. The first sliding seats 14 are threadedly connected to the second screw rod 40. After the second screw rod 40 rotates, it drives the first sliding seats 14 to move, so that the two first sliding seats 14 approach each other. During the approaching process, the first sliding seats 14 push the push rods 16, and then push the storage box 1 upward through the push rods 16, adjusting the height of the storage box 1, and further adjusting the height of the end of the extension cloth 3 close to the storage box 1, so that their heights match the height of the unloading personnel on the vehicle, facilitating them to directly place the goods on the end of the extension cloth 3 close to the storage box 1 without having to bend down frequently during unloading, which is more labor-saving.

[0061] The logistics vehicle has a certain height, and it is inconvenient for the unloading personnel to climb onto the logistics vehicle during unloading. For example Figure 10-12As shown, an installation head 29 is fixedly provided on the front side of the U-shaped clamping plate 12. An outer ring 28 is sleeved on the outer end of the installation head 29 and is movably connected to the outer ring 28 through a damping rotating shaft. A first threaded rod 5 is fixedly provided on the outer end of the outer ring 28. One end of the first threaded rod 5 is sleeved with a sleeve 6 for adjusting the length and is threadedly connected to the sleeve 6.

[0062] An adjusting rotating ring 42 for adjusting the angle is sleeved on the outer end of the sleeve 6 and is movably connected to the adjusting rotating ring 42 through a bearing. A pedal 7 for placing the foot is provided on the adjusting rotating ring 42. The unloading personnel can step on the top of the pedal 7 to climb onto the logistics vehicle, which is more convenient. A fixing opening 43 is formed in the pedal 7. The adjusting rotating ring 42 is arranged inside the fixing opening 43. The outer end of the adjusting rotating ring 42 is movably connected to the inner wall of the fixing opening 43 through a damping rotating shaft. A circular supporting plate 30 for reinforcement is fixedly provided at the bottom end of the sleeve 6. The top end of the circular supporting plate 30 is in contact with the bottom end of the pedal 7. The circular supporting plate 30 plays a role in supporting the pedal 7.

[0063] After the U-shaped clamping plate 12 is fixed on the logistics vehicle, rotate the outer ring 28 to drive the first threaded rod 5 and the sleeve 6 to rotate, and lower the first threaded rod 5 and the sleeve 6 originally folded on the front side of the U-shaped clamping plate 12 so that they are perpendicular to the ground. Then rotate the pedal 7 so that the pedal 7 is horizontal to the ground. At the same time, rotate the sleeve 6 as needed. Since the first threaded rod 5 and the sleeve 6 are threadedly connected, rotating the sleeve 6 can adjust the overall length of the first threaded rod 5 and the sleeve 6, that is, the height of the pedal 7. Finally, rotate the adjusting rotating ring 42 to drive the pedal 7 to rotate to a convenient angle. Then the pedal 7 can be used as a step between the logistics vehicle and the ground. The unloading personnel who need to get on the vehicle can step on the top of the pedal 7 and then climb onto the logistics vehicle. When the logistics vehicle is relatively high, it is more convenient to get on the vehicle through this method, thereby making unloading more convenient.

[0064] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A logistics vehicle unloading device for green logistics that improves unloading efficiency, including a storage box (1) for logistics unloading. There is an unloading mechanism inside the storage box (1), and it is characterized in that: Two second sliding seats (22) are provided at the rear side of the storage box (1), and the storage box (1) is movably connected to the second sliding seats (22) through damping sliding rails. A fixing rod (23) is fixedly provided at the rear side of the second sliding seats (22). An installation pipe (24) is sleeved outside the fixing rod (23), and the fixing rod (23) is movably connected to the installation pipe (24) through a damping bearing. A protective plate (15) for blocking is fixedly provided at the outer end of the installation pipe (24). One ends of the two protective plates (15) respectively extend to both sides of the storage box (1), and the linear distances from the two installation pipes (24) to the storage box (1) are different; A cover plate (20) for inspecting the internal components of the storage box (1) is provided at the top of the storage box (1), and the storage box (1) is movably connected to the cover plate (20) through a hinge. An extension opening (18) is provided at the front side of the storage box (1). The unloading mechanism includes a fixed shaft (44). Both ends of the fixed shaft (44) are movably connected to the inner walls on both sides of the storage box (1) through bearings. An extension cloth (3) for guiding goods is fixedly provided at the outer end of the fixed shaft (44), and the extension cloth (3) is wound around the outer end of the fixed shaft (44); A sleeve (17) is fixedly provided on one side of the storage box (1). One end of the fixed shaft (44) extends into the sleeve (17). A first fastening bolt for fixing is provided at the top of the sleeve (17). One end of the first fastening bolt extends into the sleeve (17) and contacts the outer end of the fixed shaft (44). The first fastening bolt is threadedly connected to the fixed shaft (44). The other end of the fixed shaft (44) extends to the other side of the storage box (1) and a runner (2) is fixedly provided. A handle (45) for facilitating the rotation of the runner (2) is provided at the edge of one side of the runner (2), and the handle (45) is movably connected to the runner (2) through a bearing; One end of the extension cloth (3) extends to the front side of the storage box (1) through the extension opening (18) and a hollow rod (21) is fixedly provided. A plurality of suction cups (33) are fixedly provided at the bottom end of the hollow rod (21). A sealing ring (36) for sealing is fixedly provided at the bottom end of the suction cup (33). A gas guide pipe (35) for air extraction is fixedly provided at the bottom end of the hollow rod (21). A valve is provided on the gas guide pipe (35). A long-term fixing plate (34) for fixing to the ground is provided at the outer end of the hollow rod (21), and the long-term fixing plate (34) is connected to the hollow rod (21) through bolts; A buffer plate (4) for buffering is provided at the top end of the hollow rod (21). Connecting arms (31) are fixedly provided on both sides of the buffer plate (4). One ends of the two connecting arms (31) respectively extend to both ends of the hollow rod (21) and are movably connected to the hollow rod (21) through a rotating shaft. A second fastening bolt is provided on the connecting arm (31). The second fastening bolt penetrates through the connecting arm (31) and contacts the hollow rod (21). The second fastening bolt is threadedly connected to the connecting arm (31); An installation groove (32) is formed in the extension cloth (3). A plurality of central shafts (26) are arranged inside the installation groove (32). Connecting ports (27) for connection are formed at both ends of the central shaft (26). Both sides of the inner side of the installation groove (32) extend into the two connecting ports (27) respectively and are bolted to the central shaft (26). An outer tube (19) is arranged at the outer end of the central shaft (26) and is movably connected to the outer tube (19) through a bearing. Limit plates (25) for blocking are fixedly arranged at both ends of the outer tube (19). The extension cloth (3) includes a tensile fiber cloth (38). A waterproof cloth (37) is fixedly arranged at the top end of the tensile fiber cloth (38). A flame-retardant fiber cloth (39) is fixedly arranged at the bottom end of the tensile fiber cloth (38).

2. The logistics vehicle unloading device for green logistics that improves unloading efficiency according to claim 1, and it is characterized in that: A U-shaped clamping plate (12) for fixing to a logistics vehicle is arranged at the bottom of the storage box (1). A plurality of third fastening bolts are arranged at the bottom end of the U-shaped clamping plate (12). One end of the third fastening bolt extends into the U-shaped clamping plate (12) and is threadedly connected to the U-shaped clamping plate (12).

3. The logistics vehicle unloading device for green logistics that improves unloading efficiency according to claim 2, and it is characterized in that: Two end plates (13) for limiting are fixedly arranged at the top end of the U-shaped clamping plate (12). Two first sliding seats (14) are arranged at the top end of the U-shaped clamping plate (12) and are connected to the first sliding seats (14) through slide rails. The first sliding seats (14) are arranged between the two end plates (13). Two push rods (16) are arranged at the top end of each first sliding seat (14). Both ends of the push rod (16) are connected to the bottom end of the storage box (1) and the top end of the first sliding seat (14) respectively through movable hinge seats.

4. The logistics vehicle unloading device for green logistics that improves unloading efficiency according to claim 3, and it is characterized in that: A second screw rod (40) is arranged between the two end plates (13). The second screw rod (40) penetrates through the two first sliding seats (14) and is threadedly connected to the first sliding seats (14). Both ends of the second screw rod (40) are movably connected to the two end plates (13) through bearings. One end of the second screw rod (40) penetrates through one of the end plates (13) and a rotating head (41) for facilitating the rotation of the second screw rod (40) is fixedly arranged.

5. The logistics vehicle unloading device for green logistics that improves unloading efficiency according to claim 2, and it is characterized in that: Two bottom plates (9) are arranged at the bottom of the U-shaped clamping plate (12). Two universal wheels (8) for facilitating the movement of the bottom plates (9) are installed at the bottom end of the bottom plates (9). A handle (10) for pushing the bottom plates (9) is fixedly arranged at the top end of the bottom plates (9). A support plate (11) is arranged at the top end of the bottom plates (9). Both ends of the support plate (11) are connected to the bottom end of the U-shaped clamping plate (12) and the top end of the bottom plates (9) respectively through movable hinge seats.

6. The logistics vehicle unloading device for green logistics that improves unloading efficiency according to claim 2, and it is characterized in that: An installation head (29) is fixedly arranged on the front side of the U-shaped clamping plate (12). An outer ring (28) is sleeved on the outer end of the installation head (29) and is movably connected to the outer ring (28) through a damping rotating shaft. A first threaded rod (5) is fixedly arranged at the outer end of the outer ring (28). A sleeve (6) for adjusting the length is sleeved on one end of the first threaded rod (5) and is threadedly connected to the sleeve (6).

7. The logistics vehicle unloading device for green logistics that improves unloading efficiency according to claim 6, and it is characterized in that: A rotating ring (42) for adjusting the angle is sleeved on the outer end of the sleeve (6) and is movably connected to the rotating ring (42) through a bearing. A pedal (7) for placing the foot is provided on the rotating ring (42). A fixing opening (43) is formed in the pedal (7). The rotating ring (42) is arranged inside the fixing opening (43). The outer end of the rotating ring (42) is movably connected to the inner wall of the fixing opening (43) through a damping rotating shaft. A circular supporting plate (30) for reinforcement is fixedly provided at the bottom end of the sleeve (6). The top end of the circular supporting plate (30) is in contact with the bottom end of the pedal (7).

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