A logistics sorting and transportation device

Abstract

The present invention discloses a logistics sorting and transportation device, which relates to the technical field of logistics sorting and transportation. The present invention includes a vehicle body, and a drive system, an energy system, a control system, a navigation system, a sensor system, and a communication system are arranged on the vehicle body. The device further includes: a mounting plate, which is fixedly installed on the top of the vehicle body. A plurality of ejector rods are slidably arranged on the mounting plate, and a fixed sleeve with an open upper end is fixedly installed on the side wall of each ejector rod. A suction cup is fixedly installed on the top of each fixed sleeve. A plurality of pressure chambers are formed in the mounting plate, and each pressure chamber corresponds to the position of the corresponding ejector rod. The advantages are as follows: The present invention can greatly improve the stability during the transportation of the shelf, avoid the problems of goods falling or the shelf tipping over, and can make the placement tray move upward relative to the mounting plate by a sufficient height, facilitating the staff to sort and store bulk goods without bending over, effectively reducing the work burden.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics sorting and transportation, and in particular to a logistics sorting and transportation device. Background Art

[0002] An AGV (Automated Guided Vehicle) is an automated transportation device that can travel autonomously along a preset path or through an on-vehicle navigation system. It is widely used in the logistics field. It can move different types of goods to a designated area according to instructions, effectively improving the sorting accuracy and speed.

[0003] Currently, when an AGV (Automated Guided Vehicle) transports a shelf, it jacks up the shelf through a telescopic component to separate it from the ground, and then it can move the shelf to a designated area by itself. However, the current telescopic component can only jack up the shelf and cannot improve the stability of the shelf on the AGV. The shaking during the transportation process may cause the position of the shelf on the AGV to shift, resulting in poor handling stability and prone to problems such as goods falling or the shelf tipping over. And in order to meet the handling effect of the AGV on the shelf, its height is generally set relatively low. Therefore, when the staff uses the AGV to store and sort bulk goods, they need to bend down to operate. Working with a bent waist for a long time increases the work burden of the staff and is not convenient for stacking bulk goods on the AGV. Therefore, a logistics sorting and transportation device needs to be designed. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a logistics sorting and transportation device, which solves the problems raised in the above background art.

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

[0006] A logistics sorting and transportation device includes a vehicle body, and a drive system, an energy system, a control system, a navigation system, a sensor system, and a communication system are arranged on the vehicle body. It further includes:

[0007] A mounting plate, the mounting plate is fixedly installed on the top of the vehicle body. A plurality of ejector rods are slidably arranged on the mounting plate, and a fixed sleeve with an open upper end is fixedly installed on the side wall of each ejector rod. A suction cup is fixedly installed on the top of each fixed sleeve. A plurality of pressure chambers are formed in the mounting plate, and each pressure chamber corresponds to the position of the corresponding ejector rod. A jacking component is installed in each pressure chamber, and each jacking component cooperates with the corresponding ejector rod. A plurality of connecting pipes are fixedly connected between the bottom of each pressure chamber and the bottom of the corresponding fixed sleeve;

[0008] A placement tray, the placement tray is installed on the top of the mounting plate, and a lifting assembly matching with the placement tray is installed on the mounting plate. The lifting assembly is used to adjust the height of the placement tray relative to the mounting plate.

[0009] Further, the jacking assembly is composed of a first piston, a second piston, a spring and a push rod. The first piston and the second piston are both installed in the pressure chamber in a sealed and sliding manner. The spring is installed between the first piston and the second piston. The push rod is fixedly installed between the second piston and the ejector rod, and the push rod is in sealed and sliding connection with the mounting plate.

[0010] Further, a hydraulic cylinder is fixedly installed at the bottom of the mounting plate, and the output end of the hydraulic cylinder is fixedly connected with the first piston. The output end of the hydraulic cylinder is in sealed and sliding connection with the mounting plate. Two positioning rods are fixedly installed in the pressure chamber, and the two positioning rods are in sealed and sliding fit with both the first piston and the second piston.

[0011] Further, a one-way air inlet hole communicating with the upper end of the pressure chamber is opened on the mounting plate. A cavity is opened in the ejector rod. A plurality of air jet holes are opened on the top wall of the ejector rod, and each air jet hole communicates with the cavity. A plurality of one-way exhaust pipes are fixedly connected between the bottom of the cavity and the top of the pressure chamber.

[0012] Further, one ends of the connecting pipe and the one-way exhaust pipe outside the mounting plate are both corrugated pipes. The air jet holes are inclined towards the center of the ejector rod from top to bottom.

[0013] Further, the lifting assembly is composed of a chute, a bidirectional lead screw, a servo motor and two sliders. The chute is opened on the top of the mounting plate. The two sliders are both slidably installed in the chute. The servo motor is fixedly installed on the side wall of the mounting plate. The bidirectional lead screw is fixedly connected to the output end of the servo motor, and one end of the bidirectional lead screw located in the chute is threadedly connected to both sliders. Connecting mechanisms are installed between the two sliders and the placement tray.

[0014] Further, the connecting mechanism is composed of a rotating shaft, a mounting block, a first support rod, a second support rod and a connecting block. The rotating shaft is rotatably installed on the slider. The mounting block is fixedly installed on the rotating shaft. The first support rod is fixedly installed on the mounting block. The second support rod is installed on the first support rod. The connecting block is rotatably installed between the end of the second support rod far from the first support rod and the placement tray.

[0015] Further, a receiving groove slidably matched with the second support rod is opened on the first support rod, and a compression spring is installed between the receiving groove and the second support rod.

[0016] Further, a fixed gear is fixedly installed on the side wall of the rotating shaft, and a fixed rack meshing with the fixed gear is fixedly installed on the side wall of the sliding groove, and the length of the toothed part of the fixed rack is equal to one-fourth of the arc length of the toothed part of the fixed gear.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. Through the cooperation of the fixed sleeve and the suction cup, stable adsorption between the ejector rod and the shelf can be achieved when using the ejector rod to lift the shelf for transportation, thereby greatly improving the stability during the shelf transportation process and avoiding problems such as goods falling or the shelf tipping over.

[0019] 2. Through the cooperation of the first piston, the spring and the second piston, during the process of using the ejector rod to lift the shelf, the pressure exerted by the weight of the shelf on the ejector rod can be utilized to cause the first piston and the second piston to change positions, and the adsorption between the suction cup and the shelf can be automatically completed during this period.

[0020] 3. Through the design of the air jet holes, before using the ejector rod to lift the shelf, the movement of the second piston can be utilized to automatically clean the dust at the bottom of the shelf, avoiding the influence of dust on the adsorption effect of the suction cup on the shelf.

[0021] 4. Through the design of the lifting assembly, the placement tray can be lifted relative to the mounting plate by a sufficient height for storing bulk goods. When the staff sorts and stores the bulk goods, they do not need to bend down for operation, effectively reducing the work burden.

[0022] In summary, the present invention can greatly improve the stability during the shelf transportation process, avoid problems such as goods falling or the shelf tipping over, and can make the placement tray move up relative to the mounting plate by a sufficient height, facilitating the staff to sort and store bulk goods without bending down for operation, effectively reducing the work burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a logistics sorting and transportation device proposed by the present invention;

[0024] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0025] Figure 3 is Figure 2 a schematic structural diagram after removing the vehicle body;

[0026] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at one of the ejector rods;

[0027] Figure 5 is Figure 4 a top view of

[0028] Figure 6 is Figure 5 Schematic structural diagram of the A-A plane in

[0029] Figure 7 is Figure 6 Enlarged schematic structural diagram of part a in

[0030] Figure 8 is Figure 4 Schematic structural diagram after removing the mounting plate;

[0031] Figure 9 is Figure 8 Exploded schematic structural diagram of

[0032] Figure 10 is Figure 3 Schematic structural diagram after removing the placement tray;

[0033] Figure 11 is Figure 3 Schematic diagram of the structure at the placement tray in

[0034] Figure 12 is Figure 11 Schematic diagram of the structure at the bidirectional lead screw in

[0035] Figure 13 is Figure 12 Exploded schematic structural diagram of the structure at one of the sliders.

[0036] In the figure: 1 vehicle body, 2 mounting plate, 3 ejector rod, 4 hydraulic cylinder, 5 fixed sleeve, 6 suction cup, 7 pressure chamber, 8 first piston, 9 connecting pipe, 10 second piston, 11 spring, 12 cavity, 13 air injection hole, 14 one-way exhaust pipe, 15 one-way air inlet hole, 16 placement tray, 17 telescopic rod, 18 chute, 19 slider, 20 bidirectional lead screw, 21 servo motor, 22 rotating shaft, 23 mounting block, 24 first support rod, 25 second support rod, 26 connecting block, 27 compression spring, 28 fixed gear, 29 fixed rack, 30 positioning rod, 31 push rod, 32 air outlet. Specific embodiments

[0037] Referring to Figures 1 - 13 , a logistics sorting and transportation device includes a vehicle body 1. The vehicle body 1 is provided with a drive system, an energy system, a control system, a navigation system, a sensor system, and a communication system. The vehicle body 1 is an existing AGV (Automated Guided Vehicle), and the drive system, energy system, control system, navigation system, sensor system, and communication system provided thereon are all prior arts. Therefore, the specific structure and working principle will not be elaborated herein.

[0038] It also includes a mounting plate 2 which is fixedly installed on the top of the vehicle body 1. A plurality of ejector rods 3 are slidably arranged on the mounting plate 2. The ejector rods 3 are used to lift the goods shelf when using the vehicle body 1 to carry the goods shelf, so that the bottom of the goods shelf is separated from the ground. And a fixed sleeve 5 with an open upper end is fixedly installed on the side wall of each ejector rod 3. A suction cup 6 is fixedly installed on the top of each fixed sleeve 5. The cooperation of the fixed sleeve 5 and the suction cup 6 is used to adsorb the bottom of the goods shelf when using the ejector rod 3 to lift the goods shelf, so as to improve the fixing effect between the goods shelf and the ejector rod 3 and avoid the problems that the goods on the goods shelf fall or the goods shelf topples due to the position deviation of the goods shelf during the handling process.

[0039] A plurality of pressure chambers 7 are formed in the mounting plate 2, and each pressure chamber 7 corresponds to the position of the corresponding ejector rod 3. A lifting assembly is installed in each pressure chamber 7, and each lifting assembly cooperates with the corresponding ejector rod 3. A plurality of connecting pipes 9 are fixedly connected between the bottom of each pressure chamber 7 and the bottom of the corresponding fixed sleeve 5. The lifting assembly is composed of a first piston 8, a second piston 10, a spring 11 and a push rod 31. The first piston 8 and the second piston 10 are both sealed and slidably installed in the pressure chamber 7. The spring 11 is installed between the first piston 8 and the second piston 10. The push rod 31 is fixedly installed between the second piston 10 and the ejector rod 3, and the push rod 31 is sealed and slidably connected with the mounting plate 2. When the first piston 8 moves upward in the pressure chamber 7, the air pressure at the bottom of the pressure chamber 7 decreases, and negative pressure is generated in the fixed sleeve 5 through the connecting pipe 9, so that the suction cup 6 can adsorb the bottom of the goods shelf. At the same time, the upward movement of the first piston 8 will drive the second piston 10 to move upward through the spring 11. When the second piston 10 moves upward, the push rod 31 is used to lift the ejector rod 3 and the fixed sleeve 5. When the ejector rod 3 contacts the bottom of the goods shelf, the weight of the goods shelf compresses the spring 11. At this time, the movement of the first piston 8 does not drive the second piston 10 to move. Therefore, within a period of time when the ejector rod 3 contacts the bottom of the goods shelf, the upward movement of the first piston 8 will not drive the ejector rod 3 to move upward continuously. At this time, the negative pressure at the bottom of the pressure chamber 7 gradually increases, so as to effectively ensure the adsorption effect of the suction cup 6 on the bottom of the goods shelf. When the spring 11 is compressed to the maximum deformation, the upward movement of the first piston 8 continues to drive the second piston 10 to move upward. At this time, the ejector rod 3 can lift the goods shelf and separate it from the ground.

[0040] A hydraulic cylinder 4 is fixedly installed at the bottom of the mounting plate 2, and the output end of the hydraulic cylinder 4 is fixedly connected with the first piston 8. The operation of the hydraulic cylinder 4 is used to control the up and down movement of the first piston 8 in the pressure chamber 7. The hydraulic cylinder 4 is an existing product, and its working principle and specific structure will not be described here. The output end of the hydraulic cylinder 4 is sealed and slidably connected with the mounting plate 2. Two positioning rods 30 are fixedly installed in the pressure chamber 7, and the two positioning rods 30 are both sealed and slidably matched with the first piston 8 and the second piston 10. The design of the positioning rods 30 can be used to ensure the movement stability of the first piston 8 and the second piston 10 in the pressure chamber 7.

[0041] A cavity 12 is formed inside the ejector rod 3. A plurality of air jet holes 13 are formed in the top wall of the ejector rod 3, and each air jet hole 13 communicates with the cavity 12. A plurality of one-way exhaust pipes 14 are fixedly connected between the bottom of the cavity 12 and the top of the pressure chamber 7. Through the cooperation of the one-way exhaust pipes 14 and the air jet holes 13, when the second piston 10 moves upward in the pressure chamber 7, the airflow ejected from the plurality of air jet holes 13 can be used to clean the bottom of the shelf and remove the dust thereon, so that the suction cup 6 can better adsorb on the bottom of the shelf. The design of the one-way exhaust pipes 14 enables the gas in the upper part of the pressure chamber 7 to be discharged only in one direction. A one-way air inlet hole 15 communicating with the upper part of the pressure chamber 7 is formed in the mounting plate 2. The design of the one-way air inlet hole 15 is used to allow external air to enter the pressure chamber 7 when the second piston 10 moves downward and resets in the pressure chamber 7, so as to keep the air pressure in the upper part of the pressure chamber 7 constant. At the same time, an air outlet 32 penetrating through the ejector rod 3 from top to bottom is formed in the ejector rod 3. The design of the air outlet is used to discharge the gas ejected from the air jet holes 13 from the bottom of the ejector rod 3 after the suction cup 6 completes the adsorption on the bottom of the shelf, so as to avoid the problem that the pressure in the suction cup 6 increases and affects its adsorption effect on the bottom of the shelf.

[0042] One ends of the connecting pipe 9 and the one-way exhaust pipes 14 located outside the mounting plate 2 are both corrugated pipes. The design of the corrugated pipes ensures that when the ejector rod 3 drives the fixed sleeve 5 to move up and down relative to the mounting plate 2, the gas communication effect between the pressure chamber 7, the fixed sleeve 5 and the ejector rod 3 can be guaranteed. The air jet holes 13 are inclined towards the center of the ejector rod 3 from top to bottom. The purpose of the inclined setting of the air jet holes 13 is to blow the gas at the bottom of the shelf to the outside by the airflow ejected from the ejector rod 3, so as to improve the cleaning effect on the bottom of the shelf.

[0043] A placement tray 16 is installed on the top of the mounting plate 2. The placement tray 16 is used for workers to place bulk goods. A lifting assembly matched with the placement tray 16 is installed on the mounting plate 2. The lifting assembly is used to adjust the height of the placement tray 16 relative to the mounting plate 2. The lifting assembly consists of a chute 18, a bidirectional lead screw 20, a servo motor 21 and two sliders 19. The chute 18 is formed on the top of the mounting plate 2. Both sliders 19 are slidably installed in the chute 18. The servo motor 21 is fixedly installed on the side wall of the mounting plate 2. The bidirectional lead screw 20 is fixedly connected to the output end of the servo motor 21, and one end of the bidirectional lead screw 20 located in the chute 18 is threadedly connected to both sliders 19. Connecting mechanisms are installed between both sliders 19 and the placement tray 16. When the servo motor 21 works, the two sliders 19 can be made to approach or move away from each other in the chute 18 by the rotation of the bidirectional lead screw 20. The servo motor 21 can specifically adopt a servo motor of model 130ST-M05025LFB.

[0044] The connecting mechanism is composed of a rotating shaft 22, a mounting block 23, a first support rod 24, a second support rod 25 and a connecting block 26. The rotating shaft 22 is rotatably mounted on the slider 19, the mounting block 23 is fixedly mounted on the rotating shaft 22, the first support rod 24 is fixedly mounted on the mounting block 23, the second support rod 25 is mounted on the first support rod 24, and the connecting block 26 is rotatably mounted between one end of the second support rod 25 away from the first support rod 24 and the placing tray 16. A receiving groove slidably matched with the second support rod 25 is formed in the first support rod 24, and a compression spring 27 is installed between the receiving groove and the second support rod 25;

[0045] When the bidirectional lead screw 20 rotates to make the two sliders 19 approach each other, the two first support rods 24 and the two second support rods 25 also approach each other. When the two sliders 19 approach each other to the maximum stroke, the sliders 19 and the connecting block 26 are vertically corresponding. At this time, the first support rod 24 is in a vertical state. A fixed gear 28 is fixedly mounted on the side wall of the rotating shaft 22, and a fixed rack 29 meshing with the fixed gear 28 is fixedly mounted on the side wall of the chute 18. The total length of the toothed part on the fixed rack 29 is equal to one-fourth of the arc length of the toothed part of the fixed gear 28. While the sliders 19 approach each other, the meshing effect between the fixed gear 28 and the fixed rack 29 makes the rotating shaft 22 drive the mounting block 23 to rotate, so that the first support rod 24 rotates from a horizontal state to a vertical state. Then, the placing tray 16 can be lifted relative to the mounting plate 2. At the same time, with the cooperation of the compression spring 27 and the second support rod 25, when the first support rod 24 rotates from a horizontal state to a vertical state, the elastic force of the compression spring 27 can be used to make the second support rod 25 pop outwards in the first support rod 24, so that the placing tray 16 can be lifted relative to the mounting plate 2 by a sufficient height. It realizes that the placing tray 16 can be lifted by a greater height when the sliders 19 move a limited distance. When the subsequent staff stores and stacks the bulk goods, there is no need to bend down for operation, which can effectively reduce their work burden.

[0046] A plurality of telescopic rods 17 are fixedly mounted on the mounting plate 2, and the output end of each telescopic rod 17 is fixedly connected to the bottom of the placing tray 16. The telescopic rods 17 adopt a multi-stage telescopic form, which can be specifically composed of a rod one, a rod two, a rod three and a rod four. The rod one is fixedly mounted on the mounting plate 2, the rod two is slidably arranged in the rod one, the rod three is slidably arranged in the rod two, the rod four is slidably arranged in the rod three, and the top of the rod four is fixedly connected to the placing tray 16. A limiting mechanism is arranged between the rod one and the rod two, the rod two and the rod three, and the rod three and the rod four. The limiting mechanism can adopt the cooperation of a limiting block and a limiting groove to limit the mutual moving distance between the rod one and the rod two, the rod two and the rod three, and the rod three and the rod four. The multi-stage telescopic of the telescopic rods 17 and the use of the limiting mechanism are both prior arts. The design of the telescopic rods 17 can be used to effectively limit the moving direction of the placing tray 16 relative to the mounting plate 2.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A logistics sorting and transportation device, comprising a vehicle body (1), wherein a drive system, an energy system, a control system, a navigation system, a sensor system and a communication system are arranged on the vehicle body (1), and it is characterized in that, Further included are: A mounting plate (2), which is fixedly mounted on the top of the vehicle body (1). A plurality of ejector rods (3) are slidably arranged on the mounting plate (2). A fixed sleeve (5) with an upper end opening is fixedly mounted on the side wall of each ejector rod (3). A suction cup (6) is fixedly mounted on the top of each fixed sleeve (5). A plurality of pressure chambers (7) are formed in the mounting plate (2), and each pressure chamber (7) corresponds to the position of the corresponding ejector rod (3). A jacking assembly is installed in each pressure chamber (7), and each jacking assembly cooperates with the corresponding ejector rod (3). A plurality of connecting pipes (9) are fixedly connected between the bottom of each pressure chamber (7) and the bottom of the corresponding fixed sleeve (5); A placing plate (16), which is mounted on the top of the mounting plate (2). A lifting assembly for cooperating with the placing plate (16) is mounted on the mounting plate (2), and the lifting assembly is used to adjust the height of the placing plate (16) relative to the mounting plate (2); The jacking assembly is composed of a first piston (8), a second piston (10), a spring (11) and a push rod (31). A one-way air inlet hole (15) communicating with the upper end of the pressure chamber (7) is formed in the mounting plate (2). A cavity (12) is formed in the ejector rod (3). A plurality of air injection holes (13) are formed in the top wall of the ejector rod (3), and each air injection hole (13) communicates with the cavity (12). A plurality of one-way exhaust pipes (14) are fixedly connected between the bottom of the cavity (12) and the top of the pressure chamber (7).

2. The logistics sorting and transportation device according to claim 1, characterized in that, The first piston (8) and the second piston (10) are both hermetically and slidably mounted in the pressure chamber (7). The spring (11) is installed between the first piston (8) and the second piston (10). The push rod (31) is fixedly mounted between the second piston (10) and the ejector rod (3), and the push rod (31) is hermetically and slidably connected with the mounting plate (2).

3. A logistics sorting and transportation device according to claim 2, characterized in that, A hydraulic cylinder (4) is fixedly mounted on the bottom of the mounting plate (2), and the output end of the hydraulic cylinder (4) is fixedly connected with the first piston (8). The output end of the hydraulic cylinder (4) is hermetically and slidably connected with the mounting plate (2). Two positioning rods (30) are fixedly mounted in the pressure chamber (7), and the two positioning rods (30) are hermetically and slidably engaged with the first piston (8) and the second piston (10).

4. A logistics sorting and transportation device according to claim 1, characterized in that, One ends of the connecting pipes (9) and the one-way exhaust pipes (14) located outside the mounting plate (2) are both corrugated pipes. The air injection holes (13) are inclined from top to bottom towards one end of the center of the ejector rod (3).

5. A logistics sorting and transportation device according to claim 1, characterized in that, The lifting assembly consists of a sliding groove (18), a bidirectional lead screw (20), a servo motor (21), and two sliders (19). The sliding groove (18) is formed at the top of the mounting plate (2). Both of the two sliders (19) are slidably mounted in the sliding groove (18). The servo motor (21) is fixedly mounted on the side wall of the mounting plate (2). The bidirectional lead screw (20) is fixedly connected to the output end of the servo motor (21), and one end of the bidirectional lead screw (20) located in the sliding groove (18) is threadedly connected to both of the two sliders (19). Connection mechanisms are installed between both of the two sliders (19) and the placement disc (16).

6. A logistics sorting and transportation device according to claim 5, characterized in that, The connection mechanism consists of a rotating shaft (22), a mounting block (23), a first support rod (24), a second support rod (25), and a connection block (26). The rotating shaft (22) is rotatably mounted on the slider (19). The mounting block (23) is fixedly mounted on the rotating shaft (22). The first support rod (24) is fixedly mounted on the mounting block (23). The second support rod (25) is mounted on the first support rod (24). The connection block (26) is rotatably mounted between one end of the second support rod (25) away from the first support rod (24) and the placement disc (16).

7. A logistics sorting and transportation device according to claim 6, characterized in that, A receiving groove for slidably mating with the second support rod (25) is formed in the first support rod (24), and a compression spring (27) is installed between the receiving groove and the second support rod (25).

8. A logistics sorting and transportation device according to claim 7, characterized in that, A fixed gear (28) is fixedly mounted on the side wall of the rotating shaft (22). A fixed rack (29) meshing with the fixed gear (28) is fixedly mounted on the side wall of the sliding groove (18), and the length of the toothed part of the fixed rack (29) is equal to one quarter of the arc length of the toothed part of the fixed gear (28).

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