An intelligent lifting and conveying device for logistics transportation

Abstract

The present invention discloses an intelligent lifting and conveying device for logistics transportation, which relates to the field of logistics transportation technology, and comprises a bottom plate, the top side wall of the bottom plate is fixedly connected with two groups of support plates, the side walls of the two groups of support plates at opposite ends are rotatably connected with transmission rollers, the outer walls of the two transmission rollers are rotatably sleeved with the same transmission belt, and the side wall of one support plate is fixedly connected with a first motor. The present invention can fix the chair legs and chair backs at different angles when the chair needs to be conveyed into a transport vehicle, and is suitable for chairs that need to be conveyed in different production batches, and in the process of lifting and conveying the chair, it avoids the shaking of the conveying belt causing continuous friction between the chair and the outer wall of the conveying plate, causing damage to the chair, and greatly improves the efficiency and reliability of the device when lifting and conveying the chair.

Description

Technical Field

[0001] The present invention belongs to the technical field of logistics and transportation, and in particular relates to an intelligent lifting and conveying device for logistics and transportation. Background Art

[0002] Modern logistics is a product of economic globalization and an important service industry that promotes economic globalization. Various loading and conveying tools or various means of transportation are often used in the logistics field. Every item must go through more than one transfer from the sender to the recipient.

[0003] After the chairs are produced, they need to be transported by a transport vehicle. When the chairs are moved to the transport vehicle, a lifting and conveying device is used to transport the chairs to the transport vehicle. In the prior art, when lifting and conveying chairs, the chairs are usually placed on a conveying plate set on the surface of the conveyor belt, and then the chairs are conveyed to the carriage of the transport vehicle through the rotation of the conveyor belt. After that, the staff will place the chairs in the transport vehicle. However, in the process of conveying the chairs by using the conveyor plate, the conveyor plate as a whole is very easy to shake under the rotation of the conveyor belt, which will cause the chairs to shake, resulting in continuous friction between the outer surface of the chair and the outer wall of the conveyor plate, which is easy to cause damage to the outer surface of the chair, affecting the reliability of the chair during transportation. In addition, the specific parameters of each batch of chairs produced are different according to actual needs. When different batches of chairs need to be lifted and conveyed, the corresponding conveying plates need to be replaced, which greatly reduces the efficiency and reliability of the chair lifting and conveying.

[0004] To this end, we propose an intelligent lifting and conveying device for logistics transportation to solve the above problems. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The transmission mechanism that the present invention relates to a device for transmitting the transmission of the present invention is a kind of transmission mechanism that the transmission mechanism is connected with the transmission gear of the present invention, and the transmission gear of the present invention is connected with the transmission gear of the present invention to the transmission gear of the present invention.

[0007] Preferably, the placement assembly includes two first electric telescopic rods symmetrically fixedly connected to the inner wall of the transmission frame, the telescopic ends of the two first electric telescopic rods are fixedly connected to the first fixed plate, the inner wall of the first fixed plate is fixedly connected to the first electric slide rail, the top side walls of the first electric slide rail are slidably connected to the first slide plate, the top side walls of the first slide plate are fixedly connected to the third motor, the output end of the third motor is fixedly connected to the second electric telescopic rod, and the telescopic ends of the second electric telescopic rods are fixedly connected to the placement plate.

[0008] Preferably, the chair leg fixing assembly includes two first grooves opened on the inner wall of the bottom end of the transmission frame, the bottom inner walls of the first grooves are fixedly connected with the second electric slide rail, the top side walls of the second electric slide rail are slidably connected with two second slide plates, and the top side walls of the second slide plates are fixedly connected with the third electric telescopic rod.

[0009] Preferably, two second grooves are symmetrically provided on the inner wall at the bottom end of the transmission frame, and the inner walls at one end of the two second grooves are fixedly connected to a fifth electric telescopic rod, and the telescopic ends of the fifth electric telescopic rod are fixedly connected to a mounting block, and the inner wall of the mounting block is fixedly connected to a third electric slide rail, and the top side wall of the third electric slide rail is slidably connected to two third slide plates, and the top side wall of the third slide plate is fixedly connected to a sixth electric telescopic rod.

[0010] Preferably, the telescopic ends of the third electric telescopic rod and the sixth electric telescopic rod are fixedly connected to the first U-shaped plate, the inner walls at both ends of the first U-shaped plate are rotatably connected to the same round rod, the rod walls of the round rod are fixedly connected to the mounting shell, the side walls of the first U-shaped plate are fixedly connected to the fourth motor, the output end of the fourth motor passes through the side wall of the first U-shaped plate and is fixedly connected to one end of the round rod, the inner walls around the mounting shell are fixedly connected to the fourth electric telescopic rod, and the telescopic ends of the fourth electric telescopic rod are fixedly connected to the first clamping plate.

[0011] Preferably, the chair back fixing assembly includes two L-shaped grooves symmetrically opened on the inner wall at the top end of the transmission frame, the inner walls of the L-shaped grooves are fixedly connected with L-shaped electric slide rails, the bottom end side walls of the L-shaped electric slide rails are slidably connected with a movable plate, the bottom end side walls of the movable plate are fixedly connected with a seventh electric telescopic rod, and the telescopic ends of the seventh electric telescopic rod are fixedly connected with a connecting plate.

[0012] Preferably, two third grooves are symmetrically provided on the inner wall at one end of the transmission frame, the inner walls of the third grooves are fixedly connected with a fourth electric slide rail, the side walls of the fourth electric slide rail are slidably connected with a fourth slide plate, the side walls of the fourth slide plate at the opposite end to the connecting plate are fixedly connected with an eighth electric telescopic rod, and the telescopic ends of the eighth electric telescopic rod are fixedly connected with an adjustment plate.

[0013] Preferably, the side walls at one end of the adjusting plate are fixedly connected to the limiting plate, the side walls at one end of the limiting plate are rotatably connected to the fixing block, the side walls at one end of the adjusting plate are provided with a fourth groove, the inner wall of the fourth groove is movably connected to a clamping plate, the side walls at one end of the clamping plate are fixedly connected to a ninth electric telescopic rod, the telescopic end of the ninth electric telescopic rod is rotatably connected to the side wall at one end of the fixing block, the side walls at one end of the clamping plate are fixedly connected to a plurality of pressure sensors, and the detection ends of the plurality of pressure sensors are fixedly connected to the second clamping plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By setting up the placement component, the chair leg fixing component and the chair back fixing component, when the chair needs to be transported to the transport vehicle, the placement plate can be used to align the entire chair on the transmission frame, and then the position and angle of the mounting shell can be adjusted according to the specific angle of the chair legs and the distance between the chair legs of each batch of chairs to be transported, so that the mounting shell can cover the chair legs, and the chair legs are fixed with the first clamping plate. Then, the angle of the second clamping plate is changed according to the inclination angle of the chair back, so that the chair back can be fixed with the second clamping plate, thereby realizing the fixation of chair legs and chair backs at different angles, adapting to chairs that need to be transported in different production batches, and in the process of lifting and transporting the chair, the shaking of the conveying belt can be avoided, which causes continuous friction between the chair and the outer wall of the conveying plate and causes damage to the chair, thereby greatly improving the efficiency and reliability of the device in lifting and transporting the chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the partial structure of the present invention Figure 1 ;

[0018] Figure 3 It is a schematic diagram of the partial structure of the present invention Figure 2 ;

[0019] Figure 4 It is a schematic diagram of the partial structure of the present invention Figure 3 ;

[0020] Figure 5 It is a schematic diagram of the partial structure of the present invention Figure 4 ;

[0021] Figure 6 It is a schematic diagram of the partial structure of the present invention Figure 5 ;

[0022] Figure 7 It is a schematic diagram of the partial structure of the present invention Figure 6 .

[0023] In the figure: 1, bottom plate; 2, support plate; 3, transmission roller; 4, transmission belt; 5, first motor; 6, support plate; 7, side plate; 8, rotating rod; 9, transmission frame; 10, second motor; 11, placement assembly; 111, first electric telescopic rod; 112, first fixed plate; 113, first electric slide rail; 114, first slide plate; 115, third motor; 116, second electric telescopic rod; 117, placement plate; 12, chair leg fixing assembly; 121, first groove; 122, second electric slide rail; 123, second slide plate; 124, third electric telescopic rod; 125, second groove; 126, fifth electric telescopic rod; 127, mounting block; 128, third electric slide rail; 129, third slide plate; 1210 , the sixth electric telescopic rod; 1211, the first U-shaped plate; 1212, the round rod; 1213, the mounting shell; 1214, the fourth motor; 1215, the fourth electric telescopic rod; 1216, the first clamping plate; 13, the chair back fixing component; 131, the L-shaped groove; 132, the L-shaped electric slide rail; 133, the moving plate; 134, the seventh electric telescopic rod; 135, the connecting plate; 136, the third groove; 137, the fourth electric slide rail; 138, the fourth slide plate; 139, the eighth electric telescopic rod; 1310, the adjusting plate; 1311, the limiting plate; 1312, the fixing block; 1313, the fourth groove; 1314, the card plate; 1315, the ninth electric telescopic rod; 1316, the pressure sensor; 1317, the second clamping plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1 - Figure 7, an intelligent lifting and conveying device for logistics transportation, comprising a bottom plate 1, two groups of support plates 2 are fixedly connected to the top side wall of the bottom plate 1, the side walls of the two groups of support plates 2 at opposite ends are rotatably connected to transmission rollers 3, the outer walls of the two transmission rollers 3 are rotatably sleeved with the same transmission belt 4, one of the side walls of the support plates 2 is fixedly connected to a first motor 5, the output end of the first motor 5 passes through the side wall of the corresponding support plate 2 and is fixedly connected to one end of the transmission roller 3, the outer wall of the transmission belt 4 is fixedly connected to a plurality of support plates 6, the transmission belt 4 The outer wall is fixedly connected with a plurality of side plates 7 having the same number as the support plate 6, the inner walls of the plurality of support plates 6 are rotatably connected with a rotating rod 8, the rod wall of the rotating rod 8 is fixedly connected with a transmission frame 9, the side walls of the support plates 6 are fixedly connected with a second motor 10, the output end of the second motor 10 passes through the side wall of the support plate 6 and is fixedly connected with one end of the rotating rod 8, the inner wall of the transmission frame 9 is fixedly connected with a placement component 11, the inner wall of the bottom end of the transmission frame 9 is provided with a chair leg fixing component 12, and the inner wall of the top end of the transmission frame 9 is provided with a chair back fixing component 13.

[0026] In the embodiment, the placement component 11 includes two first electric telescopic rods 111 symmetrically fixedly connected to the inner wall of the transmission frame 9, the telescopic ends of the two first electric telescopic rods 111 are fixedly connected to the first fixed plate 112, the inner wall of the first fixed plate 112 is fixedly connected to the first electric slide rail 113, the top side wall of the first electric slide rail 113 is slidably connected to the first slide plate 114, the top side wall of the first slide plate 114 is fixedly connected to the third motor 115, the output end of the third motor 115 is fixedly connected to the second electric telescopic rod 116, and the telescopic ends of the second electric telescopic rod 116 are fixedly connected to the placement plate 117;

[0027] The chair leg fixing assembly 12 includes two first grooves 121 formed on the inner wall of the bottom end of the transmission frame 9, the inner wall of the bottom end of the first grooves 121 is fixedly connected to the second electric slide rail 122, the top side wall of the second electric slide rail 122 is slidably connected to two second slide plates 123, and the top side wall of the second slide plate 123 is fixedly connected to the third electric telescopic rod 124;

[0028] Two second grooves 125 are symmetrically provided on the inner wall of the bottom end of the transmission frame 9, and a fifth electric telescopic rod 126 is fixedly connected to the inner wall of one end of the two second grooves 125, and a mounting block 127 is fixedly connected to the telescopic end of the fifth electric telescopic rod 126, and a third electric slide rail 128 is fixedly connected to the inner wall of the mounting block 127, and two third slide plates 129 are slidably connected to the top side wall of the third slide plate 129, and a sixth electric telescopic rod 1210 is fixedly connected to the top side wall of the third slide plate 129;

[0029] The telescopic ends of the third electric telescopic rod 124 and the sixth electric telescopic rod 1210 are fixedly connected to the first U-shaped plate 1211, the inner walls at both ends of the first U-shaped plate 1211 are rotatably connected to the same round rod 1212, the rod walls of the round rod 1212 are fixedly connected to the mounting shell 1213, the side walls of the first U-shaped plate 1211 are fixedly connected to the fourth motor 1214, the output end of the fourth motor 1214 passes through the side wall of the first U-shaped plate 1211 and is fixedly connected to one end of the round rod 1212, the inner walls around the mounting shell 1213 are fixedly connected to the fourth electric telescopic rod 1215, and the telescopic ends of the fourth electric telescopic rod 1215 are fixedly connected to the first clamping plate 1216.

[0030] Specifically, when the chairs need to be transported to the transport vehicle, the placement plate 117 can be used to align the entire chair on the transmission frame 9, and then the position and angle of the mounting shell 1213 can be adjusted according to the specific angles of the chair feet and the distance between the chair feet required for each batch of chairs to be transported, so that the mounting shell 1213 can cover the chair feet, and the first clamping plate 1216 can be used to fix the chair feet.

[0031] In the embodiment, the chair back fixing assembly 13 includes two L-shaped grooves 131 symmetrically opened on the inner wall of the top of the transmission frame 9, the inner walls of the L-shaped grooves 131 are fixedly connected with L-shaped electric slide rails 132, the bottom side walls of the L-shaped electric slide rails 132 are slidably connected with moving plates 133, the bottom side walls of the moving plates 133 are fixedly connected with seventh electric telescopic rods 134, and the telescopic ends of the seventh electric telescopic rods 134 are fixedly connected with connecting plates 135;

[0032] Two third grooves 136 are symmetrically provided on the inner wall of one end of the transmission frame 9, and the inner walls of the third grooves 136 are fixedly connected with fourth electric slide rails 137, and the side walls of the fourth electric slide rails 137 are slidably connected with fourth slide plates 138, and the side walls of the fourth slide plates 138 at the ends opposite to the connecting plate 135 are fixedly connected with eighth electric telescopic rods 139, and the telescopic ends of the eighth electric telescopic rods 139 are fixedly connected with adjustment plates 1310;

[0033] One end side wall of the adjustment plate 1310 is fixedly connected to the limit plate 1311, and one end side wall of the limit plate 1311 is rotatably connected to the fixed block 1312. One end side wall of the adjustment plate 1310 is provided with a fourth groove 1313, and the inner wall of the fourth groove 1313 is movably connected to the clamping plate 1314, and one end side wall of the clamping plate 1314 is fixedly connected to the ninth electric telescopic rod 1315, and the telescopic end of the ninth electric telescopic rod 1315 is rotatably connected to the side wall of one end of the fixed block 1312. One end side wall of the clamping plate 1314 is fixedly connected to a plurality of pressure sensors 1316, and the detection ends of the plurality of pressure sensors 1316 are fixedly connected to the second clamping plate 1317. After the second clamping plate 1317 fixes the chair back, when the pressure value detected by one of the pressure sensors 1316 is too high or too low, it means that the chair back is uneven and does not meet the exit requirements. After the chair is transported to the transport vehicle, it is placed separately by the staff to facilitate the classification of chairs that do not meet the exit requirements.

[0034] Specifically, the first clamping plate 1216 is used to fix the chair legs, and then the angle of the second clamping plate 1317 is changed according to the inclination angle of the chair back, so that the chair back can be fixed by the second clamping plate 1317, thereby achieving the fixation of chair legs and chair backs at different angles, which is suitable for chairs that need to be transported in different production batches, and in the process of lifting and transporting the chair, the shaking of the conveyor belt is avoided to cause continuous friction between the chair and the outer wall of the conveyor plate, which causes damage to the chair, thereby greatly improving the efficiency and reliability of the device in lifting and transporting the chair.

[0035] The following electrical components are all electrically connected to the peripheral PLC controller.

[0036] The operating principle of the present invention is now described as follows:

[0037] In the present invention, when it is necessary to transport the chair to the transport vehicle, the staff first controls the first motor 5 to start, driving one of the transmission rollers 3 to rotate, and under the transmission action of the transmission belt 4, another transmission roller 3 is rotated, and at this time, multiple transmission frames 9 rotate accordingly, and the staff sequentially places the bottom of the chair to be transported on the placement plate 117 provided in the transmission frame 9, and uses the transmission frame 9 to transport the chair. After the chair is placed on the placement plate 117, the corresponding third motor 115 is controlled to start, driving the second electric telescopic rod 116 to rotate, so that the placement plate 117 drives the chair to rotate, so that the chair feet on both sides of the chair are in the same plane with the second slide rail, and then the third electric slide rail 128 and the second electric slide rail 122 are controlled to start, driving the corresponding The third slide plate 129 moves with the second slide plate 123, so that the distance between each group of the third slide plate 129 and the second slide plate 123 matches the chair foot, and the third slide plate 129 and the second slide plate 123 are both in the same plane with the corresponding chair foot, and then the fourth motor 1214 is controlled to start, driving the round rod 1212 to rotate, and during the rotation of the round rod 1212, the mounting shell 1213 is driven to rotate, so that the mounting shell 1213 is tilted, and the tilt direction of the opening of the mounting shell 1213 matches the tilt direction of the chair foot, and then the first electric slide rail 113 is controlled to start, driving the first slide plate 114 to move, so that the chair foot on one side of the chair is located directly above the corresponding mounting shell 1213, and then the fifth electric telescopic rod 126 is controlled to start, driving the mounting block 127 to move. The first electric telescopic rod 1215 is controlled to start, and the first clamping plate 1216 is driven to move, and the first clamping plate 1216 is used to fix the chair legs. After the initial fixation of the chair legs is completed, the L-shaped electric slide rail 132 is controlled to start, and the moving plate 133 is driven to move, so that the adjustment plate 1310 on one side of the moving plate 133 is in the same plane as the other corresponding adjustment plate 1310, and then the ninth electric telescopic rod 1315 is controlled to start, and the fixing block 1316 is driven to move. 312 moves. Since one side of the fixed block 1312 is rotatably connected to the limit plate 1311, as the ninth electric telescopic rod 1315 starts the fixed block 1312 to move to one side, the fixed block 1312 will rotate around the rotation connection with the limit plate 1311. At this time, the clamping plate 1314 will move in the fourth groove 1313 without affecting the rotation of the fixed block 1312. After the fixed block 1312 rotates to a certain angle, the inclination angle of the second clamping plate 1317 on one side of the fixed block 1312 is the same as the inclination angle of the corresponding chair back. Then, the seventh electric telescopic rod 134 is controlled to start, driving the second clamping plate 1317 to move so that the second clamping plate 1317 is located on one side of the chair back. At the same time, the fourth electric slide rail 137 is controlled to start.The fourth slide plate 138 is driven to move, so that the second clamping plate 1317 on the other side is located on the other side of the chair back, and then the eighth electric telescopic rod 139 is controlled to start, driving the second clamping plate 1317 to move toward the chair back, and the chair back is fixed by the second clamping plate 1317. Since the second clamping plate 1317 matches the inclination angle of the chair back, when the overall flatness of the chair back meets the requirements of the exit, the pressure values ​​detected by the multiple pressure sensors 1316 are relatively low. However, when the pressure value detected by one of the pressure sensors 1316 is too high or too low, it indicates that The backrest of this chair is uneven and does not meet the exit requirements. After the chair is transported to the transport vehicle, the staff will place it separately to facilitate the classification of chairs that do not meet the exit requirements. After the chair is fixed, the chair will be lifted and transported to the carriage of the transport vehicle as the transmission belt 4 rotates. Then the staff will take the chair off the transmission frame 9 and put it into the transport vehicle to complete the lifting and transportation of the chair. As the transmission belt 4 drives the chair to be lifted and transported, when the chair gradually approaches the transport vehicle, the second motor 10 is controlled to start, driving the rotating rod 8 and the transmission frame 9 to move relative to each other. The side plate 7 is rotated in the corresponding direction so that the side wall of the transmission frame 9 conflicts with the side wall of the side plate 7, which is convenient for subsequent staff to take the chair out of the transmission frame 9. After the transmission frame 9 moves to the bottom of the transmission belt 4, the second motor 10 is controlled to start again to restore the transmission frame 9 to its original position, which is convenient for continuing to lift and transport the chair. When the chair needs to be transported to the transport vehicle, the placement plate 117 can be used to align the entire chair on the transmission frame 9. Then, according to the specific angle of the chair feet required for each batch of chairs to be transported and the spacing between the chair feet, the position and angle of the mounting shell 1213 are adjusted to facilitate The mounting shell 1213 covers the chair legs, and the first clamping plate 1216 is used to fix the chair legs. Then, the angle of the second clamping plate 1317 is changed according to the tilt angle of the chair back, so that the chair back can be fixed by the second clamping plate 1317, thereby achieving the fixation of chair legs and chair backs at different angles, adapting to chairs that need to be transported in different production batches, and in the process of lifting and transporting the chair, the shaking of the conveying belt causes the continuous friction between the chair and the outer wall of the conveying plate, which causes damage to the chair, thereby greatly improving the efficiency and reliability of the device in lifting and transporting the chair.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent lifting and conveying device for logistics transportation, comprising a bottom plate (1), characterized in that: The top side wall of the bottom plate (1) is fixedly connected to two groups of support plates (2), and the side walls of the two groups of support plates (2) at opposite ends are rotatably connected to transmission rollers (3), and the outer walls of the two transmission rollers (3) are rotatably sleeved with the same transmission belt (4), and the side wall of one of the support plates (2) is fixedly connected to a first motor (5), and the output end of the first motor (5) passes through the side wall of the corresponding support plate (2) and is fixedly connected to one end of the transmission roller (3), and the outer wall of the transmission belt (4) is fixedly connected to a plurality of support plates (6), and the outer wall of the transmission belt (4) is fixedly connected to a plurality of support plates (6) ) a side plate (7) having the same number of side plates (7), the inner walls of the plurality of support plates (6) are all rotatably connected to a rotating rod (8), the rod wall of the rotating rod (8) is fixedly connected to a transmission frame (9), the side walls of the support plates (6) are all fixedly connected to a second motor (10), the output end of the second motor (10) passes through the side wall of the support plate (6) and is fixedly connected to one end of the rotating rod (8), the inner wall of the transmission frame (9) is fixedly connected to a placement component (11), the inner wall of the bottom end of the transmission frame (9) is provided with a chair leg fixing component (12), and the inner wall of the top end of the transmission frame (9) is provided with a chair back fixing component (13); The chair leg fixing assembly (12) comprises two first grooves (121) formed on the inner wall of the bottom end of the transmission frame (9); the inner wall of the bottom end of the first grooves (121) is fixedly connected to a second electric slide rail (122); the top side wall of the second electric slide rail (122) is slidably connected to two second slide plates (123); the top side wall of the second slide plate (123) is fixedly connected to a third electric telescopic rod (124); The inner wall of the bottom end of the transmission frame (9) is symmetrically provided with two second grooves (125), the inner walls of one end of the two second grooves (125) are both fixedly connected with a fifth electric telescopic rod (126), the telescopic ends of the fifth electric telescopic rod (126) are both fixedly connected with a mounting block (127), the inner wall of the mounting block (127) is fixedly connected with a third electric slide rail (128), the top side wall of the third electric slide rail (128) is slidably connected with two third slide plates (129), and the top side wall of the third slide plate (129) is fixedly connected with a sixth electric telescopic rod (1210); The telescopic ends of the third electric telescopic rod (124) and the sixth electric telescopic rod (1210) are both fixedly connected to a first U-shaped plate (1211); the inner walls at both ends of the first U-shaped plate (1211) are rotatably connected to a same round rod (1212); the rod walls of the round rod (1212) are both fixedly connected to a mounting shell (1213); the side walls of the first U-shaped plate (1211) are both fixedly connected to a fourth motor (1214); the output end of the fourth motor (1214) passes through the side wall of the first U-shaped plate (1211) and is fixedly connected to one end of the round rod (1212); the inner walls around the mounting shell (1213) are all fixedly connected to a fourth electric telescopic rod (1215); and the telescopic ends of the fourth electric telescopic rod (1215) are all fixedly connected to a first clamping plate (1216).

2. The intelligent lifting and conveying device for logistics transportation according to claim 1 is characterized in that: The placement assembly (11) comprises two first electric telescopic rods (111) symmetrically fixedly connected to the inner wall of the transmission frame (9); the telescopic ends of the two first electric telescopic rods (111) are fixedly connected to a first fixing plate (112); the inner wall of the first fixing plate (112) is fixedly connected to a first electric slide rail (113); the top side walls of the first electric slide rail (113) are slidably connected to a first slide plate (114); the top side walls of the first slide plate (114) are fixedly connected to a third motor (115); the output end of the third motor (115) is fixedly connected to a second electric telescopic rod (116); and the telescopic ends of the second electric telescopic rods (116) are fixedly connected to a placement plate (117).

3. The intelligent lifting and conveying device for logistics transportation according to claim 1 is characterized in that: The chair back fixing assembly (13) comprises two L-shaped grooves (131) symmetrically formed on the inner wall of the top end of the transmission frame (9); the inner walls of the L-shaped grooves (131) are fixedly connected to L-shaped electric slide rails (132); the bottom side walls of the L-shaped electric slide rails (132) are slidably connected to movable plates (133); the bottom side walls of the movable plates (133) are fixedly connected to seventh electric telescopic rods (134); and the telescopic ends of the seventh electric telescopic rods (134) are fixedly connected to connecting plates (135).

4. The intelligent lifting and conveying device for logistics transportation according to claim 3 is characterized in that: Two third grooves (136) are symmetrically formed on the inner wall of one end of the transmission frame (9); the inner walls of the third grooves (136) are fixedly connected to fourth electric slide rails (137); the side walls of the fourth electric slide rails (137) are slidably connected to fourth slide plates (138); the side walls of the fourth slide plates (138) at the ends opposite to the connecting plate (135) are fixedly connected to eighth electric telescopic rods (139); and the telescopic ends of the eighth electric telescopic rods (139) are fixedly connected to adjustment plates (1310).

5. The intelligent lifting and conveying device for logistics transportation according to claim 4 is characterized in that: One end side wall of the adjustment plate (1310) is fixedly connected to a limit plate (1311); one end side wall of the limit plate (1311) is rotatably connected to a fixed block (1312); one end side wall of the adjustment plate (1310) is provided with a fourth groove (1313); the inner wall of the fourth groove (1313) is movably connected to a clamping plate (1314); one end side wall of the clamping plate (1314) is fixedly connected to a ninth electric telescopic rod (1315); the telescopic end of the ninth electric telescopic rod (1315) is rotatably connected to the side wall of one end of the fixed block (1312); one end side wall of the clamping plate (1314) is fixedly connected to a plurality of pressure sensors (1316); the detection ends of the plurality of pressure sensors (1316) are fixedly connected to a second clamping plate (1317).

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