Logistics transportation device facilitating unloading

Abstract

The invention relates to the field of logistics transportation, in particular to a logistics transportation device facilitating unloading. The technical problem that according to a traditional van, goods cannot be conveniently and rapidly moved to a compartment unloading opening one by one, the clamping state of the goods cannot be conveniently and rapidly released, and then the unloading efficiency is low is solved. A logistics transportation device facilitating unloading comprises a carriage, two tail doors hinged to the tail of the carriage, two shells fixedly connected to the inner wall of the carriage, a containing frame hinged to the lower portion of the inner wall of the carriage and two first hydraulic push rods fixedly connected to the bottom of the inner wall of the carriage. The placing frame and the goods rotate upwards, the pulleys jack up the goods, the goods slide downwards along the pulleys, the lowermost goods move to be horizontal and form an included angle with the goods tightly attached to the lowermost goods, the second limiting plate enters the included angle to limit other goods except the lowermost goods, and after the goods on the outermost side are unloaded, the other goods continue to slide downwards. Cargoes can be conveniently and rapidly moved to a carriage unloading opening one by one, and the unloading efficiency is conveniently improved.

Description

Technical Field

[0001] The present invention relates to the field of logistics transportation, and in particular to a logistics transportation device which is convenient for unloading. Background Art

[0002] Logistics transport equipment refers to equipment used to transport goods, including various types of transport equipment such as road, rail, water and air. The most common road logistics transport equipment is the van. The van is a truck with a closed cargo compartment. This design can provide better protection for the goods and prevent them from being damaged by natural factors such as wind, sun and rain.

[0003] The compartment of a traditional van has a certain depth. When unloading some luggage or other goods, a small forklift operated by one person is usually placed in the compartment first. The staff operates the small forklift to transport the goods from the outside to the inside one by one to the unloading port of the compartment. Then the staff outside the compartment operates the large forklift to unload the goods transported to the unloading port of the compartment one by one. The process of transporting the goods to the unloading port of the compartment takes a lot of time, and it is not convenient to quickly move the goods to the unloading port of the compartment one by one. In addition, most traditional vans rely on safety ropes, safety buckles or chain locks to fix and clamp the goods. It takes a lot of time to unlock these clamping devices when unloading, which is not convenient for quickly releasing the clamping state of the goods, resulting in low unloading efficiency. Summary of the invention

[0004] In order to overcome the shortcomings of traditional box trucks, that is, it is inconvenient to move the goods to the unloading port of the compartment quickly and easily one by one, and it is not convenient to quickly release the clamping state of the goods, thus resulting in low unloading efficiency, the present invention provides a logistics transportation device that is easy to unload and can conveniently and quickly move the goods to the unloading port of the compartment, and can conveniently and quickly release the clamping state of the goods, thereby improving the unloading efficiency.

[0005] The technical solution of the present invention is: a logistics transportation device that is convenient for unloading, comprising a carriage, one side of the carriage is open, and a protrusion is provided on the inner wall of the carriage away from the opening; Two tailgates hinged at the rear of the cabin; Two shells fixedly connected to the inner wall of the carriage; A placement rack hinged to the lower part of the inner wall of the carriage; Two hydraulic push rods fixedly connected to the bottom of the inner wall of the carriage; Two slotted frames respectively fixed to two hydraulic push rods and a telescopic rod; A crossbar fixed to one side of the placement rack; A limit frame fixedly connected to one side of the top of the placement frame; Several items placed on top of the rack; A lifting mechanism provided on the carriage and the placement rack; A limiting mechanism is arranged on the carriage and the shell.

[0006] Further explanation: a forklift slot is provided on one side of the placement rack.

[0007] Further description, the lifting mechanism includes a sliding frame slidably connected to the placement frame, two sets of pulleys rotatably connected to the sliding frame, two sets of inclined blocks fixed to the bottom of the sliding frame, and a transmission assembly arranged on the carriage and the placement frame.

[0008] Further description is given that several pulleys on the side close to the tailgate in the two sets of pulleys are arranged to be inclined upward.

[0009] To further explain, the transmission assembly includes two transmission frames slidably connected to the bottom of the placement frame, two sets of rollers rotatably connected to the two transmission frames, two racks 1 respectively fixed to one side of the two transmission frames, two rotating shafts 1 rotatably connected to one side of the placement frame, two gears 1 respectively fixed to the two rotating shafts 1, and two arc-shaped racks fixed to the lower part of the inner wall of the carriage, and the two gears 1 are respectively meshed with the two arc-shaped racks.

[0010] Further description, the limiting mechanism includes two guide frames fixedly connected to the bottom of the inner wall of the carriage, two hydraulic push rods 2 fixedly connected to the inner wall of the carriage, two two-way slot frames 1 slidably connected to the inner wall of the carriage, two two-way slot frames 2 slidably connected to the inner wall of the carriage, limiting slots are opened on the two two-way slot frames 1 and the two two-way slot frames 2, the two two-way slot frames 1 are respectively fixed to the two two-way slot frames 2, one side of the two two-way slot frames 2 is respectively fixed to the telescopic rods of the two hydraulic push rods 2, and a telescopic component is arranged on the shell and the guide frame.

[0011] To further explain, the telescopic assembly includes two limit plates 1 respectively connected in a sliding manner to the two guide frames, two contact shafts 1 respectively fixedly connected to the two limit plates 1, two limit plates 2 respectively connected in a sliding manner to the two guide frames, the two limit plates 2 are respectively connected in a sliding manner to the two shells, and two contact shafts 2 respectively fixedly connected to the two limit plates 2.

[0012] Further description, it also includes a clamping mechanism arranged on the car body and the shell, the clamping mechanism is used to clamp the goods during transportation, the clamping mechanism includes two groups of hydraulic push rods three fixedly connected to the upper part of the inner wall of the car body, two upper frames slidably connected to the upper part of the inner wall of the car body, the two upper frames are respectively fixed to the telescopic rods of the two groups of hydraulic push rods three, the upper parts of the two upper frames are provided with inclined surfaces, two clamping frames respectively connected to the two shells in a sliding manner, the lower parts of the two clamping frames are rounded, two groups of return springs are respectively arranged between the two clamping frames and the two shells, and a downward pressure component is arranged on the shell and the upper frame.

[0013] To further explain, the pressure assembly includes two sets of racks 2 respectively fixed on the two upper frames, two rotating shafts 2 respectively rotatably connected to the upper parts of the inner walls of the two shells, two gears 2 respectively fixed on the two rotating shafts 2, the two sets of racks 2 respectively mesh with the two gears 2, and the two pressure frames respectively fixed on the two rotating shafts 2.

[0014] Further description also includes two sets of balls respectively embedded and connected to the two limit plates.

[0015] The beneficial effects of the present invention are as follows: 1. The hydraulic push rod 1 drives the one-shaped groove frame to move upward, and the one-shaped groove frame drives the placement frame and the goods to rotate upward through the cross bar. The pulley lifts the goods up to a certain height, and the goods will slide downward along the pulley. The lowest goods will move to a horizontal state and form an angle with the goods closely attached to it. The limiting plate 2 enters between the angles to limit the other goods except the lowest one. After the outermost goods are unloaded, the limiting plate 2 no longer limits the goods, and the remaining goods continue to slide downward. The lowest goods move to a horizontal state again and form an angle, so that the goods can be quickly and conveniently moved to the unloading port of the carriage one by one, thereby improving the unloading efficiency.

[0016] 2. The two upper frames are driven to move upward by hydraulic push rod 3, and the inclined surfaces on the two upper frames squeeze the two clamping frames in the direction of approaching each other. The two clamping frames clamp the two sides of the goods. The two upper frames respectively drive the two sets of racks 2 to move upward, and the two sets of racks 2 respectively drive the two gears 2 to rotate, and the two gears 2 respectively drive the two shafts 2 to rotate, and the two shafts 2 respectively drive the two lower pressure frames to rotate downward, and the two lower pressure frames press the top of the goods to clamp the goods, reduce the probability of movement during goods transportation, and improve the stability of goods transportation.

[0017] 3. The two upper frames are driven downward by the hydraulic push rod 3, and the upper frames no longer squeeze the clamping frames. The reset spring will rebound and drive the two clamping frames to move away from each other, and the two clamping frames are out of contact with the goods. The two upper frames respectively drive the two sets of racks 2 to move downward, and the two sets of racks 2 respectively drive the two gears 2 to rotate in the opposite direction, and the two gears 2 respectively drive the two rotating shafts 2 to rotate in the opposite direction, and the two rotating shafts 2 respectively drive the two lower pressure frames to rotate upward and out of contact with the goods, which can facilitate the rapid release of the clamping state of the goods and further improve the unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the tailgate of the present invention being unfolded.

[0020] Figure 3 It is a cross-sectional view of the present invention.

[0021] Figure 4 It is a cross-sectional view of gear 1 and arc-shaped rack of the present invention.

[0022] Figure 5 It is a cross-sectional view of the placement rack, hydraulic push rod 1, slot rack and cross bar of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting mechanism of the present invention.

[0024] Figure 7 It is a schematic diagram of the split three-dimensional structure of the lifting mechanism of the present invention.

[0025] Figure 8 It is a cross-sectional view of the limiting mechanism and the clamping mechanism of the present invention.

[0026] Fig. 9 It is a schematic diagram of the split three-dimensional structure of the limiting mechanism of the present invention.

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0028] Fig.11 It is a schematic diagram of the disassembled three-dimensional structure of the clamping mechanism of the present invention.

[0029] Fig.12 It is a schematic diagram of the three-dimensional structure of the clamping frame of the present invention.

[0030] Fig.13 It is a state diagram of the cargo during unloading of the present invention.

[0031] Fig.14 It is a state diagram of the placing rack, hydraulic push rod 1 and slot rack during unloading of the present invention.

[0032] Fig.15 It is a schematic diagram of the three-dimensional structure of the limiting plate 1 and the ball of the present invention.

[0033] Markings in the attached drawings: 1: compartment, 2: tailgate, 3: housing, 4: placement rack, 5: hydraulic push rod 1, 6: slot rack, 7: cross bar, 8: limit rack, 81: cargo, 91: sliding rack, 92: pulley, 93: inclined block, 94: transmission rack, 95: roller, 96: rack 1, 97: rotating shaft 1, 98: gear 1, 99: arc rack, 101: guide rack, 102: hydraulic Push rod two, 103: two-way slot frame one, 104: two-way slot frame two, 105: limit plate one, 106: contact shaft one, 107: limit plate two, 108: contact shaft two, 111: hydraulic push rod three, 112: upper frame, 113: clamping frame, 114: return spring, 115: rack two, 116: rotating shaft two, 117: gear two, 118: lower pressure frame, 12: ball. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0035] Embodiment 1: A logistics transport device that is convenient for unloading, such as Figure 1-Figure 15 As shown, it includes a carriage 1, one side of the carriage 1 is open, the opening on one side of the carriage 1 is used for loading and unloading goods 81, and a protrusion is provided on the inner wall of the carriage 1 away from the opening; Two tailgates 2 connected to the rear of the vehicle compartment 1 by hinges; Two housings 3 connected to the inner wall of the carriage 1 by bolts; A placement rack 4 is hinged to the lower part of the inner wall of the carriage 1, and one side of the placement rack 4 contacts the protrusion on the inner wall of the carriage 1; Two hydraulic push rods 5 are fixedly connected to the bottom of the inner wall of the carriage 1, and the two hydraulic push rods 5 are symmetrically arranged; Two slotted frames 6 respectively welded to the two hydraulic push rods 5 telescopic rods; A crossbar 7 fixed to one side of the placement rack 4, the crossbar 7 is located in the slots of the two slot racks 6; A limiting frame 8 fixedly connected to one side of the top of the placement frame 4; A plurality of goods 81 are placed on the top of the placement rack 4, and the hydraulic push rod 1 5 drives the placement rack 4 to rotate upward through the slotted rack 6 and the cross bar 7, thereby driving the goods 81 to rotate upward; A lifting mechanism provided on the carriage 1 and the placement rack 4, the lifting mechanism being used to lift the cargo 81 during unloading; The limiting mechanism is arranged on the carriage 1 and the shell 3 , and is used to limit the position of the cargo 81 .

[0036] One side of the placement rack 4 is provided with a forklift slot.

[0037] The lifting mechanism includes a sliding frame 91 slidably connected to the placement frame 4, two sets of pulleys 92 rotatably connected to the sliding frame 91, the two sets of pulleys 92 are symmetrically arranged, and the number of each set of pulleys 92 is several. The pulleys 92 can make the goods 81 slide more smoothly, and two sets of inclined blocks 93 are fixed to the bottom of the sliding frame 91. The two sets of inclined blocks 93 are symmetrically arranged, and the number of each set of inclined blocks 93 is two, and the transmission components are arranged on the carriage 1 and the placement frame 4.

[0038] The plurality of pulleys 92 on the side close to the tailgate 2 in the two groups of pulleys 92 are all arranged to be tilted upwards. The pulleys 92 arranged to be tilted upwards can allow the lowermost cargo 81 to move to a horizontal position when rotating upwards.

[0039] The transmission assembly includes two transmission frames 94 slidably connected to the bottom of the placement frame 4, the two transmission frames 94 are symmetrically arranged, two groups of rollers 95 respectively rotatably connected to the two transmission frames 94, each group of rollers 95 has two rollers, the rollers 95 push the sliding frame 91 upward through the inclined block 93, and then drive the pulley 92 to move upward, two racks 96 respectively fixed to one side of the two transmission frames 94, two rotating shafts 97 rotatably connected to one side of the placement frame 4, the two rotating shafts 97 are symmetrically arranged, two gears 98 respectively fixed to the two rotating shafts 97, two arc-shaped racks 99 fixed to the lower part of the inner wall of the carriage 1, and the two gears 98 are respectively meshed with the two arc-shaped racks 99, and the arc-shaped rack 99 drives the rack 96 to move through the gear 98, and then drives the roller 95 to move through the transmission frame 94.

[0040] The limiting mechanism includes two guide frames 101 connected to the bottom of the inner wall of the carriage 1 by bolts, the two guide frames 101 are symmetrically arranged and respectively located in the two shells 3, two hydraulic push rods 102 fixedly connected to the inner wall of the carriage 1, the two hydraulic push rods 102 are symmetrically arranged, slidably connected to two two-way slot frames 103 on the inner wall of the carriage 1, and two two-way slot frames 104 on the inner wall of the carriage 1. Limiting grooves are provided on the two two-way slot frames 103 and the two two-way slot frames 104. The two two-way slot frames 103 are respectively fixed to the two two-way slot frames 104, and one side of the two two-way slot frames 104 is respectively fixed to the telescopic rods of the two hydraulic push rods 102. The hydraulic push rods 102 drive the two-way slot frames 104 to move, thereby driving the two-way slot frames 103 to move, and the telescopic components arranged on the shell 3 and the guide frames 101.

[0041] The telescopic assembly includes two limit plates 105 respectively connected to the two guide frames 101 in a sliding manner, two contact shafts 106 respectively fixed to the two limit plates 105, the two contact shafts 106 are respectively located in the limit grooves of the two double-way slot frames 103, the double-way slot frames 103 drive the contact shafts 106 to move, thereby driving the limit plates 105 to move, two limit plates 107 respectively connected to the two guide frames 101 in a sliding manner, the two limit plates 107 are respectively connected to the two shells 3 in a sliding manner, and two contact shafts 108 are respectively fixed to the two limit plates 107, the two contact shafts 108 are respectively located in the limit grooves of the two double-way slot frames 104, and the double-way slot frames 104 drive the contact shafts 108 to move, thereby driving the limit plates 107 to move.

[0042] Initially, the device is installed on the base of the tractor, the two tailgates 2 are in a closed state, the placement rack 4 is in a horizontal position, the protrusion on the inner wall of the carriage 1 holds one side of the placement rack 4, the sliding rack 91 and the pulley 92 are located below the top of the placement rack 4, and the limit plate 1 105 and the limit plate 2 107 are in a state of being retracted into the shell 3. When it is necessary to load goods 81, the staff opens the two tailgates 2 to expose the opening on one side of the carriage 1, and then the staff operates the large forklift to send the small manual forklift used to move the goods 81 in the carriage 1 into the carriage 1. After the manual forklift is sent into the carriage 1, the staff outside the carriage 1 operates the large forklift to place the goods 81 to be transported on the placement rack 4 one by one. At the same time, the staff in the carriage 1 operates the small manual forklift The manual forklift moves the first cargo 81 to a position in contact with the limiting frame 8, and then neatly arranges the subsequent cargo 81 one by one on the placement rack 4. When there is only enough space for one cargo 81 in the compartment 1, the staff outside the compartment 1 operates the large forklift to move the small manual forklift in the compartment 1 out of the compartment 1, and then puts the last cargo 81 on the placement rack 4, and makes the last cargo 81 flush and close to the cargo 81 in front. After all the cargo 81 are placed, the staff closes the two tailgates 2. After the tailgate 2 is closed, the staff controls the telescopic rods of the two hydraulic push rods 102 to retract, and the telescopic rods of the two hydraulic push rods 102 drive the two double-way slot racks 104 to move, and the two double-way slot racks 104 move and drive the two double-way slot racks 104 to move. 103 moves, the limiting grooves on the two double-way slot frames 103 squeeze the two contact shafts 106 in the direction of approaching each other, and the two contact shafts 106 move in the direction of approaching each other, driving the two limiting plates 105 to move in the direction of approaching each other, and the two limiting plates 105 extend out of the shell 3, and cooperate with the limiting frame 8 to form a fence, which can reduce the probability of the outermost cargo 81 colliding with the tailgate 2 during transportation. Then the staff stops the hydraulic push rod 102 and drives the traction vehicle to transport the device to the destination. After arriving at the destination, the staff opens the tailgate 2 and controls the telescopic rods of the two hydraulic push rods 5 to extend upward. The telescopic rods of the two hydraulic push rods 5 drive the two one-shaped slot frames 6 to move upward, and the one-shaped slot frames 6 drive the cross bar 7 The placing rack 4 rotates upward around the hinge point, and the placing rack 4 rotates upward to drive the limiting rack 8, the goods 81, the sliding rack 91, the pulley 92, the inclined block 93, the transmission rack 94, the roller 95, the rack 1 96, the rotating shaft 1 97 and the gear 1 98 to rotate upward. Under the action of the arc-shaped rack 99, the gear 1 98 will rotate as the placing rack 4 rotates upward. The rotation of the gear 1 98 drives the rack 1 96 to move. The movement of the rack 1 96 drives the transmission rack 94 to move. The movement of the transmission rack 94 drives the roller 95 to move. The roller 95 moves and contacts with the inclined block 93 and squeezes the inclined block 93 upward. The inclined block 93 moves upward to drive the sliding rack 91 and the pulley 92 to move upward. The pulley 92 moves upward to lift the goods 81 to a certain height. Under the action of gravity,The cargo 81 will slide downward along the two sets of pulleys 92. Since the several pulleys 92 near the side of the tailgate 2 are all inclined upward, the lowest cargo 81 will move along the upward inclined pulley 92 to a horizontal state, and finally stop after contacting the limiting plate 105. The limiting plate 105 limits the cargo 81. At this time, the lowest cargo 81 will form an angle with the cargo 81 that is close to it. The staff controls the telescopic rod of the hydraulic push rod 2 102 to continue to shrink, and the double-way slot frame 1 103 and the double-way slot frame 2 104 continue to move. The limiting grooves on the two double-way slot frames 2 104 squeeze the two contact shafts 2 108 in a direction close to each other, and the two contact shafts 2 108 move in a direction close to each other, driving the two The limiting plates 107 move towards each other, and the two limiting plates 107 extend out of the shell 3 and enter between the angles formed by the two outermost cargoes 81. The limiting plates 107 limit the other cargoes 81 except the bottom one. Then the staff operates the large forklift, inserts the fork of the forklift into the forklift slot of the placement rack 4, and then controls the fork to lift the outermost cargo 81 upward. When the lowest point of the cargo 81 is higher than the limiting plate 105, the staff drives the forklift to move the cargo 81 out of the carriage 1. After the outermost cargo 81 is unloaded, the staff controls the telescopic rod of the hydraulic push rod 102 to extend, and the telescopic rod of the hydraulic push rod 102 drives the double-way slot frame 1 103 and the double-way slot frame 2 104 to move in opposite directions. The limiting grooves on the frame 104 will be squeezed in the direction of moving away from each other, and the two contact shafts 108 will move in the direction of moving away from each other, driving the two limiting plates 107 to move in the direction of moving away from each other. The two limiting plates 107 will no longer limit the upper cargo 81. Under the action of gravity, the remaining cargo 81 will continue to slide downward along the two sets of pulleys 92. Under the action of several pulleys 92 inclined upward near the side of the tailgate 2, the lowest cargo 81 will move to a horizontal state again and form an angle with the cargo 81 that is closely attached to it again. Then the staff will control the telescopic rod of the hydraulic push rod 102 to retract until the two limiting plates 107 enter the angle formed by the cargo 81 again, and the limiting plates 107 will move downward. The upper cargo 81 is limited again. Through the above operation, the cargo 81 can be conveniently and quickly moved to the unloading port of the carriage 1 one by one, thereby improving the unloading efficiency. After the limiting plate 107 extends out of the shell 3 again, the staff drives the forklift to unload the outermost cargo 81 at the bottom, and repeats the above operation for many times to unload the remaining cargo 81. After all the cargo 81 are unloaded, the staff controls the telescopic rod of the hydraulic push rod 102 to extend to the initial position. The extension of the telescopic rod of the hydraulic push rod 102 drives the double-way slot frame 1 103 and the double-way slot frame 104 to move in the opposite direction and reset. The limiting grooves on the double-way slot frame 1 103 and the double-way slot frame 104 will respectively squeeze the two contact shafts 1 106 and the two contact shafts 2 108 in the direction away from each other.The two contact shafts 106 and the two contact shafts 2 108 move in the direction away from each other, respectively driving the two limit plates 105 and the two limit plates 2 107 to reset in the direction away from each other. After the limit plates 105 and the limit plates 2 107 are reset, the staff controls the telescopic rods of the two hydraulic push rods 1 5 to retract downward, and the telescopic rods of the two hydraulic push rods 1 5 drive the two slotted frames 6 to move downward, and the slotted frames 6 drive the placement frames 4 to rotate downward around the hinge point through the cross bar 7, and the placement frames 4 rotate downward to drive the limit frames 8, the sliding frames 91, the pulleys 92, the inclined blocks 93, the transmission frames 94, and the rollers 95 , rack 96, shaft 97 and gear 98 rotate downward, and under the action of arc-shaped rack 99, gear 98 will rotate in the opposite direction as the placement rack 4 rotates downward, and the reverse rotation of gear 98 drives rack 96 to move in the opposite direction, and the reverse movement of rack 96 drives the transmission frame 94 to move in the opposite direction, and the reverse movement of transmission frame 94 drives roller 95 to move in the opposite direction, and roller 95 is out of contact with inclined block 93. Under the action of gravity, sliding frame 91, pulley 92 and inclined block 93 will reset downward to the initial position. After the hydraulic push rod 5 is reset, the staff closes the tailgate 2 to facilitate the next transportation.

[0043] Embodiment 2: Based on embodiment 1, Figure 8 , Figure 10-12 and Fig.15 As shown, it also includes a clamping mechanism arranged on the carriage 1 and the shell 3, the clamping mechanism is used to clamp the cargo 81 during transportation, the clamping mechanism includes two groups of hydraulic push rods 111 connected to the upper part of the inner wall of the carriage 1 by bolts, the two groups of hydraulic push rods 111 are symmetrically arranged, the number of each group of hydraulic push rods 111 is two, and two upper frames 112 are slidably connected to the upper part of the inner wall of the carriage 1, the two upper frames 112 are respectively fixed to the telescopic rods of the two groups of hydraulic push rods 111, and the upper parts of the two upper frames 112 are both provided with inclined The two clamping frames 113 are respectively connected to the two shells 3 in a sliding manner. The lower parts of the two clamping frames 113 are rounded. The two hydraulic push rods 111 respectively drive the two upper frames 112 to move upward, thereby squeezing the two clamping frames 113 towards each other. Two groups of return springs 114 are respectively arranged between the two clamping frames 113 and the two shells 3. The number of return springs 114 in each group is two, and the two return springs 114 in the same group are symmetrically arranged, and are arranged on the shell 3 and the downward pressing components on the upper frame 112.

[0044] The pressing assembly includes two groups of racks 115 respectively fixed on the two upper frames 112, each group of racks 115 has two racks 115, and the two racks 115 in the same group are symmetrically arranged, respectively rotatably connected to two rotating shafts 116 on the upper inner walls of the two shells 3, and two gears 117 respectively fixed on the two rotating shafts 116. The two groups of racks 115 are respectively meshed with the two gears 117, and are respectively fixed on the two lower pressing frames 118 on the two rotating shafts 116. The upper frame 112 drives the gear 117 to rotate through the rack 115, and then drives the lower pressing frame 118 through the rotating shaft 116 to press the goods 81 downward.

[0045] It also includes two groups of balls 12 respectively embedded and connected to the two limiting plates 105, each group of balls 12 has a plurality of balls, and the plurality of balls 12 in the same group are evenly spaced.

[0046] Initially, rack 2 115 clamps rotating shaft 2 116 through gear 2 117, thereby keeping lower pressing frame 118 in a vertical state. After all the goods 81 are placed, the staff controls the telescopic rods of two sets of hydraulic push rods 3 111 to retract upward, and the telescopic rods of the two sets of hydraulic push rods 3 111 drive the two upper frames 112 to move upward. The upper frames 112 move upward and contact with the clamping frames 113. The rounded corners at the bottom of the clamping frames 113 can reduce the friction between the upper frames 112 and the clamping frames 113. The inclined surfaces on the two upper frames 112 respectively move the two clamping frames 113 closer to each other. The two upper frames 112 move upward and respectively drive the two sets of racks 115 to move upward. The two sets of racks 115 move upward and respectively drive the two gears 117 to rotate. The rotation of the two gears 117 drives the two shafts 116 to rotate. The rotation of the two shafts 116 drives the two lower pressing frames 118 to rotate downward. The two lower pressing frames 118 press the top of the cargo 81. Through the above operations, the cargo 81 can be The clamping reduces the probability of the cargo 81 moving during transportation and improves the stability of the cargo 81 during transportation. When the cargo 81 arrives at the destination and needs to be unloaded, the staff controls the telescopic rods of the two sets of hydraulic push rods 111 to extend downward, and the telescopic rods of the two sets of hydraulic push rods 111 drive the two upper frames 112 to move downward. After the upper frame 112 moves downward for a distance, it is out of contact with the clamping frame 113. The upper frame 112 no longer squeezes the clamping frame 113, and the reset spring 114 rebounds and drives the two clamping frames 113 to move away from each other. The two clamping frames 113 move toward The two upper frames 112 move away from each other and lose contact with the cargo 81, the two upper frames 112 move downward and respectively drive the two sets of rack 2 115 to move downward, the two sets of rack 2 115 move downward and respectively drive the two gear 2 117 to rotate in the opposite direction, the reverse rotation of the two gear 2 117 drives the two rotating shaft 2 116 to rotate in the opposite direction, the reverse rotation of the two rotating shaft 2 116 drives the two lower pressure frames 118 to rotate upward, the two lower pressure frames 118 rotate upward and lose contact with the cargo 81, and through the above operations, the cargo 81 can be quickly released from the clamping state, thereby further improving the unloading efficiency.

[0047] The ball 12 can reduce the friction between the limit plate 105 and the cargo 81, thereby reducing the probability that the side of the cargo 81 will be worn due to excessive friction between the limit plate 105 and the limit plate 105 when the forklift lifts the cargo 81 upward.

[0048] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A logistics transport device that is convenient for unloading, characterized by: include, A carriage (1), wherein one side of the carriage (1) is arranged to be open, and a protrusion is provided on an inner wall of the side of the carriage (1) away from the opening; Two tailgates (2) hinged to the rear of the vehicle compartment (1); Two shells (3) fixedly connected to the inner wall of the carriage (1); A placement frame (4) hinged to the lower part of the inner wall of the carriage (1); Two hydraulic push rods (5) fixedly connected to the bottom of the inner wall of the carriage (1); Two slotted frames (6) respectively fixed to the telescopic rods of the two hydraulic push rods (5); A crossbar (7) fixedly connected to one side of the placement frame (4); A limiting frame (8) fixedly connected to one side of the top of the placement frame (4); A plurality of goods (81) placed on top of the placement rack (4); A lifting mechanism disposed on the carriage (1) and the placement rack (4); A limiting mechanism is arranged on the carriage (1) and the shell (3).

2. A logistics transport device that is convenient for unloading according to claim 1, characterized in that: A forklift slot is provided on one side of the placement rack (4).

3. The logistics transport device for easy unloading according to claim 1 is characterized in that: The lifting mechanism comprises a sliding frame (91) slidably connected to the placement frame (4), two groups of pulleys (92) rotatably connected to the sliding frame (91), two groups of inclined blocks (93) fixedly connected to the bottom of the sliding frame (91), and a transmission assembly arranged on the carriage (1) and the placement frame (4).

4. The logistics transport device for easy unloading according to claim 3 is characterized by: A plurality of pulleys (92) on the side close to the tailgate (2) in the two groups of pulleys (92) are arranged to be inclined upward.

5. The logistics transport device for easy unloading according to claim 3 is characterized by: The transmission assembly comprises two transmission frames (94) slidably connected to the bottom of the placement frame (4), two groups of rollers (95) respectively rotatably connected to the two transmission frames (94), two racks (96) respectively fixed to one side of the two transmission frames (94), two rotating shafts (97) rotatably connected to one side of the placement frame (4), two gears (98) respectively fixed to the two rotating shafts (97), and two arc-shaped racks (99) fixed to the lower part of the inner wall of the carriage (1), and the two gears (98) are respectively meshed with the two arc-shaped racks (99).

6. A logistics transport device for easy unloading according to claim 5, characterized in that: The limiting mechanism comprises two guide frames (101) fixedly connected to the bottom of the inner wall of the carriage (1), two hydraulic push rods (102) fixedly connected to the inner wall of the carriage (1), two two-way slot frames (103) slidably connected to the inner wall of the carriage (1), two two-way slot frames (104) slidably connected to the inner wall of the carriage (1), the two two-way slot frames (103) and the two two-way slot frames (104) are both provided with limiting slots, the two two-way slot frames (103) are respectively fixedly connected to the two two-way slot frames (104), one side of the two two-way slot frames (104) is respectively fixedly connected to the telescopic rods of the two hydraulic push rods (102), and a telescopic component is arranged on the housing (3) and the guide frame (101).

7. The logistics transport device for easy unloading according to claim 6 is characterized by: The telescopic assembly comprises two limit plates (105) respectively connected in a sliding manner to the two guide frames (101), two contact shafts (106) respectively fixedly connected to the two limit plates (105), two limit plates (107) respectively connected in a sliding manner to the two guide frames (101), the two limit plates (107) respectively connected in a sliding manner to the two shells (3), and two contact shafts (108) respectively fixedly connected to the two limit plates (107).

8. The logistics transport device for easy unloading according to claim 7 is characterized in that: Also includes, A clamping mechanism is arranged on the carriage (1) and the shell (3), and the clamping mechanism is used to clamp the cargo (81) during transportation. The clamping mechanism includes two groups of hydraulic push rods (111) fixedly connected to the upper part of the inner wall of the carriage (1), two upper frames (112) slidably connected to the upper part of the inner wall of the carriage (1), the two upper frames (112) are respectively fixed to the telescopic rods of the two groups of hydraulic push rods (111), the upper parts of the two upper frames (112) are provided with inclined surfaces, two clamping frames (113) respectively slidably connected to the two shells (3), the lower parts of the two clamping frames (113) are rounded, two groups of return springs (114) are respectively arranged between the two clamping frames (113) and the two shells (3), and a pressing component is arranged on the shell (3) and the upper frame (112).

9. A logistics transport device for easy unloading according to claim 8, characterized in that: The pressing assembly comprises two sets of racks (115) respectively fixed on two upper frames (112), two rotating shafts (116) respectively rotatably connected to the upper inner walls of two shells (3), two gears (117) respectively fixed on the two rotating shafts (116), the two sets of racks (115) respectively meshing with the two gears (117), and two pressing frames (118) respectively fixed on the two rotating shafts (116).

10. A logistics transport device for easy unloading according to claim 9, characterized in that: Also includes, Two groups of balls (12) are respectively embedded and connected to the two limiting plates (105).

Images