A light-weight intelligent four-wheel trolley for logistics transportation capable of bearing load

Abstract

The application discloses a light intelligent four-wheel trolley for logistics transportation under load, which is used for conveying logistics goods and storing the goods in a warehouse. The trolley frame is rotatably connected with four moving wheels at the lower end, and a servo motor is fixed on the upper left side of the trolley frame through bolts. A second screw rod is rotatably connected to the inside of the left side of the trolley frame through a bearing. The trolley frame comprises a moving seat which is threadedly connected to the outside of the first screw rod and the second screw rod, a rotating shaft which is symmetrically and rotatably connected to the side wall of the trolley frame, and a gear which is key-connected to the outside of the rotating shaft. The two groups of locking plates are symmetrically distributed and synchronously moved to quickly lock the goods, so that the stability of the goods in the transportation process is ensured and the goods are prevented from falling. The synchronous movement of the locking plates can align and lock the goods in the middle of the trolley frame, and balance the weight in the trolley frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of logistics transportation, in particular to a light intelligent four-wheel trolley for logistics transportation. BACKGROUND

[0002] Logistics transportation is to realize the distribution of goods, so that goods can circulate and facilitate people's life. Logistics transportation needs to use a transportation trolley to realize the conveying of goods in the warehouse and the conveying site. With the development of informatization and intelligentization, PLC control technology is applied to the transportation trolley to realize the remote control of the transportation trolley, realize the intelligentization of the transportation trolley, and improve the convenience of logistics transportation.

[0003] The utility model discloses a light and multi -functional logistics transportation trolley of convenient type, including: trolley base, the trolley base both ends are equipped with support baffle, the trolley base upper side is equipped with goods bearing edition, the goods bearing edition front end is installed on the support baffle of trolley base front end through the support rotating pin, and the goods bearing edition rear end is equipped with handle fixed plate, the goods bearing edition lower end is equipped with damping device, and the goods bearing edition is close to the one end of support rotating pin and is equipped with feeding support plate, the trolley base lower end is equipped with universal wheel, the trolley base is equipped with support placement cylinder on one side of universal wheel, and support placement cylinder is installed on the trolley base through cylinder fixed seat, is installed on the trolley base, and the output shaft on the lower end is installed with support backing plate. The utility model discloses can move goods to goods bearing edition through rotating goods bearing edition, then the goods bearing plate is transported, and moreover, the safety of goods transportation can be guaranteed, and when being used as a placing support.

[0004] The prior art in the above has the following defects: when the goods on the transportation trolley are heavy, no auxiliary load-bearing mechanism is provided to share the weight, the load-carrying capacity of the transportation trolley is low, which is not conducive to the conveying of heavy goods, and the stacked goods cannot be quickly and conveniently locked, and the goods are prone to falling during transportation, and the load weight of the goods in the trolley cannot be balanced, reducing the walking balance of the trolley.

[0005] Therefore, we propose a light intelligent four-wheel trolley for logistics transportation to solve the above problems. SUMMARY

[0006] The present application aims to provide a light intelligent four-wheel trolley for logistics transportation to solve the above problems in the background art, i.e. no auxiliary load-bearing mechanism is provided to share the weight, the load-carrying capacity of the transportation trolley is low, and the stacked goods cannot be quickly and conveniently locked, and the load weight of the goods in the trolley cannot be balanced, reducing the walking balance of the trolley.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a loadable light intelligent four-wheel trolley for logistics transportation is used for transporting logistics goods and storing the goods in a warehouse;

[0008] The lower end of the intelligent trolley frame is rotatably connected with four moving wheels, and a servo motor is bolted on the upper left side of the intelligent trolley frame;

[0009] A second lead screw is rotatably connected to the inside of the left side of the intelligent trolley frame by a bearing, and a first lead screw is rotatably connected to the inside of the right side of the intelligent trolley frame by a bearing, and the first lead screw and the second lead screw are connected by a belt;

[0010] It comprises:

[0011] A moving seat is threadedly connected to the outside of the first lead screw and the second lead screw;

[0012] A rotating shaft is symmetrically rotatably connected to the side wall of the intelligent trolley frame, and a gear is keyed to the outside of the rotating shaft, and a cam is installed at the end of the rotating shaft away from the gear;

[0013] An inner frame is located on the inside of the intelligent trolley frame, and a pressing block is installed on the middle part of the left and right sides of the inner frame, and a moving block is symmetrically connected to the outside of the inner frame, and the moving block is elastically connected to the intelligent trolley frame by a spring;

[0014] A rotating rod is rotatably connected to the middle part above the inner frame, and a bevel gear set is keyed to the front end of the rotating rod, and an adjusting lead screw is keyed to the inside of the bevel gear set, and a locking plate at the upper position is threadedly connected to the outside of the adjusting lead screw;

[0015] A connecting rod is installed between adjacent two locking plates;

[0016] A partition plate is installed at equal intervals on the inside of the inner frame, and a through slot is formed at the left and right ends of the partition plate;

[0017] A pressure sensor is installed in the side wall of the intelligent trolley frame close to the position of the pressing block.

[0018] Preferably, the moving seat is provided with a tooth block and a mounting bracket:

[0019] The tooth block is installed in two groups on the outside of the moving seat;

[0020] The mounting bracket is installed at the lower end of the moving seat, and a load-bearing wheel is rotatably connected to the inside of the mounting bracket.

[0021] Preferably, the tooth blocks are equidistantly distributed at the connection between the moving seat and the gear, and the gear and the cam are coaxially connected, so that the gear can be driven to rotate when the moving seat moves, thereby controlling the rotation of the cam and achieving the transmission of force.

[0022] Preferably, the connection between the cam and the moving block is a smooth arc structure, and the cam and the moving block are one-to-one corresponding, so that the moving friction between the cam and the moving block can be reduced, and the rotation of the cam can drive the moving block to move, thereby adjusting the position of the moving block.

[0023] Preferably, the inner frame and the main view of the smart trolley frame are both "hui" shaped structures, and the distance between the highest point of the inner frame and the highest point of the inner side of the smart trolley frame in the initial state is 3-4cm, so that the space for upward movement of the inner frame can be reserved, and the movement of the inner frame is avoided.

[0024] Preferably, the height of the connecting rod is greater than the height of the through slot, and the connecting rod penetrates through the through slot and is slidably connected with the through slot, so that the connection between the connecting rod and the locking plate can be smoothly achieved, and the locking plates in the same group can be synchronously moved.

[0025] Preferably, the side view of the mounting frame is "m" shaped structure, and the height of the mounting frame is greater than the shortest distance between the bottom side of the smart trolley frame and the plane where the lowest point of the moving wheel is located, so that the mounting frame can be prevented from moving out of the smart trolley frame, and the vertical movement of the mounting frame is ensured.

[0026] Preferably, the locking plate is made of rubber material, and the locking plate is distributed in a vertical direction with the partition plate, so that the locking plate can be used to extrude and lock the goods, and the goods can be prevented from being scratched by the locking plate.

[0027] Compared with the prior art, the light intelligent four-wheel trolley for logistics transportation of the present application has the advantages that,

[0028] (1) The driving rotating rod is driven to rotate, the symmetrical distributed adjusting lead screws are simultaneously and reversely rotated by the bevel gear set, the two groups of symmetrical distributed locking plates are synchronously moved, the goods are quickly locked, the stability of the goods in the transportation process is ensured, the falling phenomenon is avoided, the goods can be calibrated and locked in the middle of the smart trolley frame by the synchronous movement of the locking plates, the weight in the smart trolley frame is balanced, the balance of the smart trolley frame in the walking process is maintained, and the use safety and stability of the trolley are improved.

[0029] (2) when the small car is used to transport heavy goods, the pressing block on the inner frame can press the pressure sensor, and when the pressure sensor exceeds the set value, the servo motor can be driven to control the rotation of the second lead screw and the first lead screw connected by the belt, to control the vertical movement of the moving seat, to drive the coaxial cam connected with the gear to rotate, to slightly move the inner frame carrying the goods upward, and to move the load wheel on the mounting frame out of the smart small car frame, to disperse the load of the small car by using the above-mentioned auxiliary load bearing mechanism, to reduce the load of the small car, so that the small car can load heavier goods, and to improve the practicability of the small car. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a main cross-sectional structure schematic diagram of the application;

[0031] Figure 2 It is a main cross-sectional structure schematic diagram of the moving seat of the application;

[0032] Figure 3 It is a side cross-sectional structure schematic diagram of the moving seat of the application;

[0033] Figure 4 It is a cross-sectional structure schematic diagram of the application;

[0034] Figure 5 It is an enlarged structure schematic diagram of a in the application; Figure 4

[0035] Figure 6 It is a cross-sectional structure schematic diagram of the inner frame of the application;

[0036] Figure 7 It is a main view structure schematic diagram of the application.

[0037] In the figure: 1, smart small car frame; 2, moving wheel; 3, servo motor; 4, first lead screw; 5, moving seat; 6, tooth block; 7, gear; 8, rotating shaft; 9, cam; 10, inner frame; 11, pressing block; 12, moving block; 13, spring; 14, partition; 15, locking plate; 16, connecting rod; 17, pressure sensor; 18, rotating rod; 19, bevel gear set; 20, adjusting lead screw; 21, mounting frame; 22, load wheel; 23, second lead screw; 24, through slot. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0039] Please refer to Figures 1-7 ​The application provides a technical scheme: a loadable light intelligent four-wheel trolley for logistics transportation, which is used for conveying logistics goods and storing the goods in a warehouse.

[0040] The intelligent trolley frame 1 is rotationally connected with four moving wheels 2 at the lower end, and a servo motor 3 is bolted at the upper left side of the intelligent trolley frame 1.

[0041] The second lead screw 23 is rotationally connected to the inside of the left side of the intelligent trolley frame 1 by a bearing, and the first lead screw 4 is rotationally connected to the inside of the right side of the intelligent trolley frame 1 by a bearing, and the first lead screw 4 and the second lead screw 23 are connected by a belt.

[0042] It comprises:

[0043] The moving seat 5 is threadedly connected to the outside of the first lead screw 4 and the second lead screw 23.

[0044] The rotating shaft 8 is symmetrically rotationally connected to the side wall of the intelligent trolley frame 1, the gear 7 is keyed to the outside of the rotating shaft 8, and the cam 9 is installed at the end of the rotating shaft 8 away from the gear 7.

[0045] The inner frame 10 is located on the inside of the intelligent trolley frame 1, the pressure block 11 is installed at the middle of the left and right sides of the inner frame 10, the moving block 12 is symmetrically connected to the outside of the inner frame 10, and the moving block 12 is elastically connected to the intelligent trolley frame 1 by the spring 13.

[0046] The rotating rod 18 is rotationally connected to the middle of the upper side of the inner frame 10, the bevel gear set 19 is keyed to the front end of the rotating rod 18, the adjusting lead screw 20 is keyed to the inside of the bevel gear set 19, and the locking plate 15 at the upper position is threadedly connected to the outside of the adjusting lead screw 20.

[0047] The connecting rod 16 is installed between two adjacent locking plates 15.

[0048] The partition plate 14 is installed at equal intervals on the inside of the inner frame 10, and the through slot 24 is formed at the left and right ends of the partition plate 14.

[0049] The pressure sensor 17 is installed in the side wall of the intelligent trolley frame 1 close to the position of the pressure block 11.

[0050] The height of the connecting rod 16 is greater than the height of the through slot 24, the connecting rod 16 penetrates through the through slot 24 and is slidably connected with the through slot 24, the locking plate 15 is made of rubber, and the locking plate 15 is distributed in a vertical direction with the partition plate 14.

[0051] The goods are placed between the inner frame 10 and the partition plate 14, combined Figure 6As shown in the figure, rotate the rotating rod 18. The rotating rod 18 controls the rotation of the bevel gear set 19 connected by an end key. The bevel gear set 19 controls the simultaneous reverse rotation of the two adjusting screw rods 20 symmetrically installed. The adjusting screw rods 20 control the relative movement of the locking plates 15 threadedly connected on the outside, shortening the distance between the two locking plates 15. The adjacent two locking plates 15 are connected by a connecting rod 16. The connecting rod 16 slides in the through groove 24 to achieve the synchronous movement of the locking plates 15 in the same group. The locking plates 15 are used to lock the stacked goods. When the intelligent trolley frame 1 moves, the stability of the goods can be ensured. Moreover, the two symmetrical groups of locking plates 15 move simultaneously, and the goods can be calibrated and locked in the middle position of the intelligent trolley frame 1, ensuring the balance of the weight inside the intelligent trolley frame 1, and thus ensuring the balance of the intelligent trolley frame 1. When the goods are transported to the storage area, the staff can rotate the rotating rod 18 in the reverse direction to drive the two groups of locking plates 15 to move in the reverse direction, increasing the distance between the two groups of locking plates 15, unlocking the goods, and then the goods can be taken down.

[0052] The moving seat 5 is provided with a tooth block 6 and a mounting bracket 21: The tooth block 6 is installed in two groups on the outside of the moving seat 5; The mounting bracket 21 is installed at the lower end of the moving seat 5, and a bearing wheel 22 is rotatably connected to the inner side of the mounting bracket 21. The tooth blocks 6 are equally spaced at the connection between the moving seat 5 and the gear 7, and the gear 7 and the cam 9 are coaxially connected. The connection between the cam 9 and the moving block 12 is a smooth arc structure, and the cam 9 and the moving block 12 are arranged in one-to-one correspondence. The front views of the inner frame 10 and the intelligent trolley frame 1 are both in the shape of a Chinese character 'hui'. And the distance between the highest point of the inner frame 10 and the highest point inside the intelligent trolley frame 1 in the initial state is 3 - 4 cm. The side view of the mounting bracket 21 is in the shape of an'm', and the height of the mounting bracket 21 is greater than the shortest distance between the bottom side of the intelligent trolley frame 1 and the plane where the lowest point of the moving wheel 2 is located.

[0053] When heavier goods are stacked between the inner frame 10 and the partition 14, the gravity received by the inner frame 10 increases. At this time, the gravity of the pressure sensors 17 pressed by the pressure blocks 11 installed on the left and right sides of the inner frame 10 increases. After exceeding the set value of the pressure sensors 17, the pressure sensors 17 can transmit signals to the PLC control system. The PLC control system controls the servo motor 3 to rotate forward. The servo motor 3 controls the rotation of the second screw rod 23 connected to the output end. The second screw rod 23 controls the first screw rod 4 connected by a belt to rotate in the same direction. The moving seat 5 threadedly connected to the outside of the first screw rod 4 and the second screw rod 23 moves downward. Combining Figure 2 As shown in the figure, the tooth block 6 installed on the outside of the moving seat 5 drives the meshing gear 7 to rotate. The gear 7 controls the coaxial cam 9 to rotate, pushing the moving block 12 upward, and simultaneously squeezing the spring 13, thereby controlling the inner frame 10 to move upward. At the same time, the downward movement of the moving seat 5 controls the downward movement of the mounting bracket 21, moving the bearing wheel 22 out of the intelligent trolley frame 1, reducing the load of the intelligent trolley frame 1 and dispersing the bearing weight of the intelligent trolley frame 1.

[0054] Working principle: in the use of the loadable light intelligent four-wheel trolley for logistics transportation, first, Figure 1 The light intelligent four-wheel trolley shown is automatically remotely controlled by PLC control technology, so that the light intelligent four-wheel trolley can automatically and smoothly go back and forth between the warehouse and the cargo transportation site, and the goods are stacked between the inner frame 10 and the partition plate 14, combined with Figure 6 As shown, rotate the rotating rod 18 to shorten the distance between the two locking plates 15 to lock the stacked goods. When the heavier goods are stacked between the inner frame 10 and the partition plate 14, and the set value of the pressure sensor 17 is exceeded, the pressure sensor 17 can transmit a signal to the PLC control system, and the PLC control system controls the servo motor 3 to rotate forward, controls the inner frame 10 to move upwards, and the load wheel 22 moves out of the intelligent trolley frame 1, thereby reducing the load of the intelligent trolley frame 1, unloading the goods. If the set value of the pressure sensor 17 is not exceeded, the signal is transmitted to the PLC control system, and the servo motor 3 is controlled to rotate in reverse, and the load wheel 22 is stored in the intelligent trolley frame 1. The contents not described in detail in the specification belong to the existing technology known to those skilled in the art.

[0055] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A light intelligent four-wheel trolley for heavy-load logistics transportation, which is used to transport logistics goods and store the goods in the warehouse; The intelligent trolley frame is rotatably connected with 4 moving wheels at the lower end, and a servo motor is bolted to the upper left of the intelligent trolley frame; The second screw rod is rotatably connected inside the left side of the intelligent trolley frame by a bearing, and the first screw rod is rotatably connected inside the right side of the intelligent trolley frame by a bearing, and the first screw rod and the second screw rod are connected by a belt; characterized in that It includes: The moving seat is threadedly connected to the outside of the first screw rod and the second screw rod; The rotating shafts are symmetrically rotatably connected inside the side walls of the intelligent trolley frame, and gears are key-connected to the outside of the rotating shafts, and cams are installed at the ends of the rotating shafts far from the gears; The inner frame is located inside the intelligent trolley frame, and pressing blocks are installed in the middle of the left and right sides of the inner frame, and moving blocks are symmetrically connected to the outside of the inner frame, and the moving blocks are elastically connected to the intelligent trolley frame by springs; The rotating rod is rotatably connected to the middle of the upper part of the inner frame, and a bevel gear set is key-connected to the front end of the rotating rod, and an adjusting screw rod is key-connected to the inside of the bevel gear set, and a locking plate at the upper position is threadedly connected to the outside of the adjusting screw rod; The connecting rod is installed between two adjacent locking plates; The partition plates are installed at equal intervals inside the inner frame, and through grooves are opened at both the left and right ends of the partition plates; The pressure sensors are installed inside the side walls of the intelligent trolley frame close to the pressing blocks; Tooth blocks and mounting brackets are provided on the moving seat; The tooth blocks are installed in two groups on the outside of the moving seat; The mounting bracket is installed at the lower end of the moving seat, and a bearing wheel is rotatably connected to the inside of the mounting bracket; The main views of the inner frame and the intelligent trolley frame are both "hui" - shaped structures, and the distance between the highest points of the inner frame and the inside of the intelligent trolley frame in the initial state is 3 - 4 cm; The pressure sensors can transmit signals to the PLC control system. The PLC control system controls the servo motor to rotate forward. The servo motor controls the rotation of the second screw rod connected to the output end. The second screw rod controls the first screw rod connected by the belt to rotate in the same direction at the same time. The moving seat threadedly connected to the outside of the first screw rod and the second screw rod moves downward.

2. The lightweight, intelligent, four-wheeled cart of claim 1, wherein: The tooth blocks are evenly distributed at the connection between the moving seat and the gear, and the gear and the cam are coaxially connected.

3. The lightweight, intelligent, four-wheeled cart of claim 1, wherein: The connections between the cams and the moving blocks are both smooth arc-shaped structures, and the cams and the moving blocks are arranged in one-to-one correspondence.

4. The lightweight, intelligent, four-wheeled cart of claim 1, wherein: The height of the connecting rod is greater than the height of the through groove, and the connecting rod passes through the through groove and is slidably connected to the left and right of the through groove.

5. The lightweight, intelligent, four-wheeled cart of claim 1, wherein: The side view of the mounting bracket is an "m" - shaped structure, and the height of the mounting bracket is greater than the shortest distance between the bottom side of the intelligent trolley frame and the plane where the lowest points of the moving wheels are located.

6. The lightweight, intelligent, four-wheeled cart of claim 1, wherein: The locking plate is made of rubber, and the locking plate and the partition plate are distributed in a vertical direction.

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