Intelligent lifting trolley seat height adjusting system

Abstract

The invention relates to an intelligent lifting trolley seat height adjusting system. The intelligent lifting trolley seat height adjusting system comprises a trolley and a trolley seat height adjusting method. The trolley seat height adjusting method comprises the steps that S1, the target working height interval of goods is determined; s2, hierarchically dividing a target working height interval; s3, according to the number of the divided levels, the positions where the cargoes are stacked on the cart are divided into stacking areas with the corresponding number; s4, independently monitoring the goods in each stacking area in real time; s5, according to the real-time monitoring result, the height interval corresponding to the goods taken away by the operator is judged; s6, the stroller seat is adjusted to the corresponding height according to the corresponding height interval; the seat plate capable of being adjusted up and down is arranged on the trolley, so that the trolley integrates the functions of a seat and a ladder stand. The overturning action of the seat plate is associated with the braking action of the braking assembly, so that the trolley is in a stable locking state as long as an operator uses the seat plate, and the working safety of the operator is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent adjustment of trolleys, and in particular to an intelligent lifting trolley seat height adjustment system. Background Art

[0002] Handcarts are commonly used means of transportation in daily life, usually used to transport goods over short distances. They are widely used in logistics and warehousing, building and construction, retail and supermarkets, hospitals and scientific research and other places.

[0003] In the prior art, in different application scenarios, trolleys have developed a variety of auxiliary functions from their original carrying functions, such as electric power assistance, automatic braking, etc. These functions are generally improvements and upgrades to the trolley's carrying function. The trolley is still only used for carrying. After the goods are delivered to the destination, its work is completed. Then the workers gradually take out the goods from the trolley and operate or stack them. For example, in the archive room, the administrator takes out the documents from the trolley for sorting or stacking, the workers on the assembly line take out the parts from the trolley for processing, and the employees in the supermarket take the goods out of the trolley and put them on the shelves. In these scenarios, in order to facilitate the operator to perform the next operation on the goods, seats or ladders are usually equipped to facilitate the operator to work in a sitting state, or to enable the operator to operate the goods at different heights. This configuration is a conventional configuration in the above application scenarios, but the situation where there are multiple tools such as trolleys and seats or ladders makes management more complicated. At the same time, in some narrow scenarios, multiple tools cannot be configured at the same time, which reduces the operator's work efficiency.

[0004] Therefore, the inventor is necessary to design a new intelligent lifting trolley seat height adjustment system to overcome the above problems. Summary of the invention

[0005] The main purpose of the present application is to provide an intelligent lifting trolley seat height adjustment system to solve the problem in the related art that the trolley needs to be equipped with a seat or a ladder to meet work needs.

[0006] In order to achieve the above-mentioned purpose, the present application provides an intelligent lifting trolley seat height adjustment system, including a trolley and a trolley seat height adjustment method: S1. Determine the target working height range of the goods; S2. Divide the target working height range into levels; S3. Divide the position where the goods are stacked on the trolley into a corresponding number of stacking areas according to the number of divided levels; S4. Independently monitor the goods in each stacking area in real time; S5. Determine the height range corresponding to the goods taken away by the operator based on the results of real-time monitoring; S6. Adjust the trolley seat to the corresponding height according to the corresponding height range.

[0007] Preferably, the cart comprises a cart body, a storage basket is fixedly provided on the cart body, support plates which can slide up and down are symmetrically provided on both sides of the storage basket, seat plates are rotatably provided at the rear ends of the two support plates, a lifting assembly is fixedly provided between the support plates and the cart body, two rear wheel assemblies are symmetrically fixedly provided at the rear end of the bottom of the cart body, a brake assembly is also fixedly provided on the cart body, the input end of the brake assembly is fixedly connected to one end of the cable, the other end of the cable is fixedly connected to the seat plate, and an adjustment assembly for adjusting the cable to always be in a taut state is also fixedly provided on the cart body; and the cart body also includes a controller and a plurality of weighing units, and the weighing units monitor the weight of the storage basket. The weight of the goods in the storage basket is monitored by each weighing unit, and each weighing unit corresponds to a different height of the seat plate. When taking out the goods from the storage basket, the controller determines the gear position of the goods weight according to the weight monitored by the weighing unit, and the controller lowers the seat plate to the height corresponding to the gear position through the lifting assembly according to the gear position of the current weight of the goods in the storage basket; the adjustment assembly includes at least one follower wheel, the cable bypasses all the follower wheels and the cables located on both sides of each follower wheel are parallel, and the controller adjusts the distance S moved by the follower wheel along the extension direction of the parallel section of the cable in real time according to the height H of the seat plate raised / lowered.

[0008] Preferably, the adjustment assembly includes a follower wheel, a first telescopic member and two guide wheels, side panels are fixedly provided on both sides of the cart body, the follower wheel is slidably provided on the side panels, the guide wheels are fixedly provided on the side panels, the cable passes around the first guide wheel, the follower wheel and the second guide wheel in sequence, the telescopic end of the first telescopic member is fixedly connected to the follower wheel, and the relationship between the distance S moved by the follower wheel and the height H of the seat plate raised / lowered is S=0.5H.

[0009] Preferably, the first telescopic member is a cylinder, and the first telescopic member is fixedly disposed on the side plate.

[0010] Preferably, the lifting assembly includes a scissor arm, a driving member and two groups of slide rails, one group of the slide rails is fixedly arranged at the bottom of the support plate, and the other group of the slide rails is fixedly arranged on the trolley body. Slide blocks are rotatably arranged at the top and bottom of the scissor arm, and the slide blocks at the top and bottom are respectively slidably connected to the two groups of slide rails. The driving member is fixedly arranged on the trolley body, and the output end of the driving member is fixedly connected to the slide block at the bottom.

[0011] Preferably, the driving member includes two cylinders, and the output ends of the two cylinders are respectively fixedly connected to the two sliding blocks at the bottom of the scissor arm.

[0012] Preferably, the brake assembly includes a rotating rod, a sleeve, and a latch, the rotating rod being rotatably disposed on the cart body, the sleeve being fixedly disposed at the bottom of the cart body, the latch being slidably inserted in the sleeve, one end of the latch facing the rear wheel assembly, an elastic reset member being fixedly disposed between the other end of the latch and the end of the sleeve, one end of the rotating rod being fixedly connected to the cable, and a pressure rod being fixedly disposed on the other end of the rotating rod, and a side wall of the pressure rod abutting against an end of the latch away from the rear wheel assembly.

[0013] Preferably, a plurality of cells are fixedly arranged inside the storage basket, and the weighing unit includes a plurality of pressure sensors, and the pressure sensors are fixedly arranged at the bottom of the cells.

[0014] Preferably, it further comprises two guide columns, the two guide columns are symmetrically fixedly arranged on the cart body, a connecting rod is fixedly arranged between the two support plates, and both ends of the connecting rod are slidably connected to the guide columns.

[0015] Preferably, handles are fixedly provided on the two guide columns, and a stop rod is fixedly provided between the two handles. The stop rod is used to block and limit the seat plate when it is flipped upward. A locking assembly for fixing the seat plate is also fixedly provided on the handles.

[0016] Preferably, the locking assembly includes a locking groove, which is fixedly opened on the inner side of the handle, a stopper is slidably inserted in the locking groove, a spring is fixedly arranged between the stopper and the inner bottom surface of the locking groove, and the outer end of the stopper has an arc surface.

[0017] The intelligent lifting trolley seat height adjustment system provided by the present invention has the following beneficial effects compared with the prior art:

[0018] By providing an adjustable seat plate on the trolley, the trolley integrates the functions of a seat and a ladder, so that a single tool can meet the operator's work needs, reducing the difficulty of tool management. By associating the flipping action of the seat plate with the braking action of the brake assembly, the trolley is in a stable locked state as long as the operator uses the seat plate, ensuring the operator's work safety. By providing a controller and a weighing unit, the height of the seat can be automatically adjusted when the weight of the goods in the storage basket changes, so that the operator is always in a suitable working posture, which is more humane. By providing an adjustment component and an electrical connection with the controller, the cable is always in a taut normal working state during the up and down movement of the seat plate, ensuring the stability of the action association between the flipping of the seat plate and the braking of the brake assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0020] Figure 1 is a flow chart of the method of the present invention;

[0021] Figure 2 It is the overall structural diagram of the present invention;

[0022] Figure 3 This is a structural diagram of the lifting assembly of the present invention (one side panel is hidden);

[0023] Figure 4 It is a structural exploded diagram of the present invention;

[0024] Figure 5 It is a structural diagram of the rear wheel assembly of the present invention;

[0025] Figure 6 The present invention Figure 4 Exploded view of the structure at A in the middle;

[0026] Figure 7 This is a structural diagram of the storage basket of the present invention;

[0027] Figure 8 The present invention Figure 3 Enlarged view of the structure at point B in the middle.

[0028] Among them: 1. Cart body; 2. Storage basket; 3. Support plate; 4. Seat plate; 5. Rear wheel assembly; 6. Cable; 8. Follower wheel; 9. First telescopic member; 10. Guide wheel; 11. Side plate; 12. Scissor arm; 13. Driving member; 14. Slide rail; 15. Slider; 16. Rotating rod; 17. Sleeve; 18. Latch; 19. Elastic reset member; 20. Pressure rod; 21. Cell; 22. Pressure sensor; 23. Guide column; 24. Connecting rod; 25. Handle; 26. Stop rod; 27. Locking groove; 28. Stop block; 29. ​​Spring. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0032] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0033] In addition, the term "plurality" shall mean two or more.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] like Figures 1 to 8As shown, an intelligent lifting trolley seat height adjustment system includes a trolley and a trolley seat height adjustment method: S1, determining a target working height range of goods; S2, dividing the target working height range into levels; S3, dividing the position where the goods are stacked on the trolley into a corresponding number of stacking areas according to the number of divided levels; S4, independently monitoring the goods in each stacking area in real time; S5, judging the height range corresponding to the goods taken away by the operator based on the results of real-time monitoring; S6, adjusting the trolley seat to the corresponding height according to the corresponding height range. Specifically, whether it is a supermarket shelf, a library bookshelf, or a factory processing line, the goods have different working heights. Therefore, it is necessary to first determine the target working height range of the goods, and then classify the target working height range according to the comfortable working range of the human body. For example, when a human body is standing, it is more comfortable to stack goods within a range of 40 cm above and below the hands, so the target height range is divided into 40 cm. If the target working height range is 200 cm, it can be divided into five levels. At this time, the five areas on the storage basket on the cart are respectively placed with corresponding goods, and the goods in each area are monitored separately. The monitoring method adopts the weighing method in this embodiment. In addition, the laser sensor distance measurement method can also be used to determine whether the goods in that area have been reduced. According to the interval of reducing the goods, a matching target working height range is found, and then the cart seat or pedal is adjusted to the corresponding height to meet user needs.

[0036] The cart comprises a cart body 1, on which a storage basket 2 is fixedly provided, support plates 3 which can slide up and down are symmetrically provided on both sides of the storage basket 2, and seat plates 4 are rotatably provided at the rear ends of the two support plates 3, a lifting assembly is fixedly provided between the support plates 3 and the cart body 1, and two rear wheel assemblies 5 are symmetrically fixedly provided at the rear end of the bottom of the cart body 1, a brake assembly is also fixedly provided on the cart body 1, the input end of the brake assembly is fixedly connected to one end of a cable 6, and the other end of the cable 6 is fixedly connected to the seat plate 4, and an adjustment assembly for adjusting the cable 6 to always be in a taut state is also fixedly provided on the cart body 1; it also comprises a controller and a plurality of weighing units, and the weighing units monitor the storage basket 2, each weighing unit monitors the weight change of the goods in an area, and each weighing unit corresponds to a different height of the seat plate 4. When the goods are taken out from the storage basket 2, the controller determines the gear position of the goods weight according to the weight monitored by the weighing unit, and the controller lowers the seat plate 4 to the height corresponding to the gear position through the lifting component according to the gear position of the current weight of the goods in the storage basket 2; the adjustment component includes at least one follower wheel 8, the cable 6 bypasses all the follower wheels 8 and the cables 6 located on both sides of each follower wheel 8 are parallel, and the controller adjusts the distance S moved by the follower wheel 8 along the extension direction of the parallel section of the cable 6 in real time according to the height H of the seat plate 4 raised / lowered.

[0037] Specifically, when using this trolley to transport goods, the goods are stacked in the storage basket 2 so that the weighing unit can sense the weight change of the goods in the storage basket 2. After the operator pushes the goods to a working position such as an operating table, a shelf or a workbench, if the operator needs to sit or step on it to climb up, the seat plate 4 can be flipped to a horizontal position so that the entire seat plate 4 is placed on two support plates 3. At this time, the operator can sit on the seat plate 4 or step on the seat plate 4 to work. When taking out goods from the storage basket 2, the goods can be taken from the gap between the seat plate 4 and the storage basket 2, or an opening specifically for taking out goods can be provided on the storage basket 2. The specific shape of the storage basket 2 is not limited here, and any technical solution that allows the operator to take goods from the storage basket 2 while sitting on the seat plate 4 or stepping on the seat plate 4 can be applied here. Since the bottom of the trolley is a wheel, if the trolley moves or shakes while the operator is sitting on the seat plate 4 or stepping on the seat plate 4, it is very easy to put the operator in danger. Conventional trolley brake devices require manual operation by the operator, and it is easy for the operator to forget to operate, and there is still a risk of vehicle movement. Therefore, in this embodiment, the brake system is linked to the seat plate 4 through the cable 6, and the brake assembly is linked to the action of flipping the seat plate 4 to brake and lock the rear wheel assembly 5, so that as long as the operator needs to use the seat plate 4, the trolley can be in a braked state at this time, ensuring that the trolley will not move whether the operator is sitting on the seat plate 4 or stepping on the seat plate 4, thereby indirectly ensuring the safety of the operator.

[0038] In the process of stacking goods, since the weight or quantity of goods that can be stacked on each layer of the shelf is limited, after stacking one layer, it is necessary to stack the next layer (document sorting, parts processing, etc. are similar to cargo stacking, and all require operations at different heights). At different operating layer heights, if the height of the seat plate 4 remains unchanged, it will cause inconvenience to the operator (needing to bend over or stand on tiptoe, etc.), and the operator will not be able to work in a comfortable posture. Therefore, the height of the seat plate 4 is adjusted by a lifting assembly so that the operator can always work in a comfortable posture. When stacking goods, the operator usually cannot take into account the adjustment operation of the height of the seat plate 4. Therefore, it is more humane to set the seat plate 4 to automatic adjustment. Specifically, since the height required to stack each cargo is different, its position in the storage basket is also different. When the operator takes the cargo in a certain area, the weight measured by the weighing unit in that area will change and it will be determined which area of ​​the cargo is taken, and a matching working height range will be found. At this time, the controller automatically adjusts the height of the seat plate 4 through the lifting mechanism.

[0039] During the up and down movement of the seat plate 4, since the seat plate 4 is connected to the brake assembly through the cable 6, the cable 6 may become loose or broken, resulting in the failure of the brake assembly to stop the vehicle when the seat plate 4 flips over, thereby causing the risk of the vehicle shaking. Therefore, in order to ensure that the cable 6 is always in a suitable taut working state, the movement trajectory of the cable 6 needs to be adjusted. When the seat plate 4 moves upward, the upper end of the cable 6 also moves upward. At this time, the controller controls the movement of the follower wheel 8 to shorten the middle trajectory of the cable 6, thereby keeping the cable 6 in a taut state. Preferably, the parts of the cable 6 on both sides of the follower wheel 8 are parallel, and the movement direction of the follower wheel 8 is the same as the axial direction of the cable 6 here, so as to find the proportional relationship between the movement distance of the seat plate 4 and the movement distance of the follower wheel 8, and the follower wheel 8 can be adjusted more accurately to prevent the cable 6 from becoming loose or breaking.

[0040] In this embodiment, by providing an adjustable seat plate 4 on the trolley, the trolley integrates the functions of a seat and a ladder, so that a single tool can meet the operator's work needs, reducing the difficulty of tool management. By associating the flipping action of the seat plate 4 with the braking action of the brake assembly, the trolley is in a stable locked state as long as the operator uses the seat plate 4, ensuring the operator's work safety. By providing a controller and a weighing unit, the height of the seat can be automatically adjusted when the weight of the goods in the storage basket 2 changes, so that the operator is always in a suitable working posture, which is more humane. By providing an adjustment assembly and an electrical connection with the controller, the cable 6 is always in a taut normal working state during the up and down movement of the seat plate 4, ensuring the stability of the action association between the flipping of the seat plate 4 and the braking of the brake assembly.

[0041] The adjustment assembly includes a follower wheel 8, a first telescopic member 9 and two guide wheels 10, side panels 11 are fixedly provided on both sides of the cart body 1, the follower wheel 8 is slidably provided on the side panels 11, the guide wheels 10 are fixedly provided on the side panels 11, the cable 6 passes around the first guide wheel 10, the follower wheel 8 and the second guide wheel 10 in sequence, the telescopic end of the first telescopic member 9 is fixedly connected to the follower wheel 8, the relationship between the distance S moved by the follower wheel 8 and the height H of the seat plate 4 raised / lowered is S=0.5H; the first telescopic member 9 is a cylinder, and the first telescopic member 9 is fixedly provided on the side panels 11; specifically, the guide wheel 10 is used to adjust and change the direction of the trajectory of the cable 6, so that the cables 6 on both sides of the follower wheel 8 can remain in a parallel state, the telescopic end of the first cylinder drives the follower wheel 8 to move and then adjusts the trajectory of the middle part of the cable 6 to adapt to the lifting and lowering action of the seat. Here, the movement of a follower wheel 8 is used to adjust the trajectory of the cable 6. The follower wheel 8 is a movable pulley. The movement distance of the end point of the cable 6 is twice the movement distance of the follower wheel 8. According to actual conditions, the number of follower wheels 8 can be adaptively adjusted. For example, when two follower wheels 8 are used, the movement distance of the end point of the cable 6 is four times the movement distance of the follower wheels 8.

[0042] The lifting assembly includes a scissor arm 12, a driving member 13 and two groups of slide rails 14, one group of the slide rails 14 is fixedly arranged at the bottom of the support plate 3, and the other group of the slide rails 14 is fixedly arranged on the cart body 1, and sliders 15 are rotatably arranged on the top and bottom of the scissor arm 12, and the sliders 15 at the top and the bottom are respectively slidably connected with the two groups of the slide rails 14, the driving member 13 is fixedly arranged on the cart body 1, and the output end of the driving member 13 is fixedly connected with the slider 15 at the bottom; the driving member 13 includes two cylinders, and the output ends of the two cylinders are respectively fixedly connected with the two sliders 15 at the bottom of the scissor arm 12; specifically, the two sliders 15 are driven by the two cylinders to slide on the slide rails 14, so that the scissor arm 12 can realize the shearing action, thereby realizing the lifting and lowering of the support plate 3 at the top of the scissor arm 12, and the lifting assembly and the scissor arm 12 are both set as two groups, and the two support plates 3 are adjusted to move up and down at the same time, so that the force on the support plates 3 is more balanced.

[0043] The brake assembly includes a rotating rod 16, a sleeve 17, and a pin 18. The rotating rod 16 is rotatably set on the cart body 1, the sleeve 17 is fixedly set at the bottom of the cart body 1, and the pin 18 is slidably inserted in the sleeve 17. One end of the pin 18 is facing the rear wheel assembly 5, and an elastic reset member 19 is fixedly set between the other end of the pin 18 and the end of the sleeve 17. One end of the rotating rod 16 is fixedly connected to the cable 6, and the other end of the rotating rod 16 is fixedly set with a pressure rod 20, and the side wall of the pressure rod 20 abuts against the end of the pin 18 away from the rear wheel assembly 5. Specifically, when the position where the cable 6 is connected to the rotating rod 16 moves upward, the rotating rod 16 rotates, and the other end of the rotating rod 16 drives the pressure rod 20 to move in the direction of the rear wheel assembly 5, and then inserts the pin 18 into the rear wheel assembly 5, so that the rear wheel cannot rotate, that is, the rear wheel is locked. When the seat plate 4 is flipped over and reset from the horizontal position, the elastic reset member 19 drives the pin 18 to reset, and then drives the rotating rod 16 and the cable 6 to reset.

[0044] The storage basket 2 is fixedly provided with a plurality of cells 21, and the weighing unit includes a plurality of pressure sensors 22, and the pressure sensors 22 are fixedly provided at the bottom of the cells 21. Specifically, the storage basket 2 can be provided in the form of a plurality of cells 21, and a pressure sensor 22 is provided in each cell 21 to judge its weight change, so as to sense the goods in which the operator has taken out, and this form is more suitable for stacking different goods and sorting different documents.

[0045] It also includes two guide columns 23, which are symmetrically fixed on the cart body 1, and a connecting rod 24 is fixed between the two support plates 3, and both ends of the connecting rod 24 are slidably connected to the guide columns 23. Specifically, since the operator sits on or steps on the seat plate 4 when adjusting the height of the seat plate 4, it is easy to cause risks if the seat plate 4 is guided only by the scissor arm 12, so the guide column 23 is set to limit the movement direction of the seat plate 4, so as to ensure the stability and safety of the seat plate 4 when it moves up and down.

[0046] A handle 25 is fixedly provided on each of the two guide columns 23, and a stopper 26 is fixedly provided between the two handles 25. The stopper 26 is used to block and limit the seat plate 4 when it is flipped upward, and a locking assembly for fixing the seat plate 4 is also fixedly provided on the handle 25. Specifically, when the seat plate 4 is not in a horizontal state when the operator is working, but in the process of loading goods into the storage basket 2 of the trolley or pushing the trolley, the flap should be in a stable state, at which time the seat plate 4 is placed against the stopper 26 and locked by the locking assembly.

[0047] The locking assembly includes a locking groove 27, which is fixedly opened on the inner side of the handle 25, and a stopper 28 is slidably inserted in the locking groove 27. A spring 29 is fixedly arranged between the stopper 28 and the inner bottom surface of the locking groove 27, and the outer end of the stopper 28 has an arc surface. Specifically, when the seat plate 4 is flipped toward the stopper rod 26, the side wall of the seat plate 4 squeezes the arc surface to make the stopper 28 slide into the locking groove 27, so that the seat plate 4 can pass through the stopper 28. After passing through, the stopper 28 is ejected under the action of the spring 29, and the stopper 28 blocks the seat plate 4. This is only a structural form of the locking assembly, and any technical solution that can limit the seat plate 4 can be applied here.

[0048] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent lifting trolley seat height adjustment system, characterized in that: Including the height adjustment method of the stroller and the stroller seat: S1. Determine the target working height range of the cargo; S2. Divide the target working altitude interval into levels; S3, dividing the location where the goods are stacked on the cart into a corresponding number of stacking areas according to the number of divided levels; S4. Independently monitor the goods in each stacking area in real time; S5. Determine the height interval corresponding to the goods taken away by the operator according to the results of real-time monitoring; S6. Adjust the stroller seat to a corresponding height according to the corresponding height range.

2. The intelligent lifting trolley seat height adjustment system according to claim 1, characterized in that: The cart comprises a cart body (1), a storage basket (2) is fixedly arranged on the cart body (1), support plates (3) that can slide up and down are symmetrically arranged on both sides of the storage basket (2), seat plates (4) are rotatably arranged at the rear ends of the two support plates (3), a lifting assembly is fixedly arranged between the support plates (3) and the cart body (1), two rear wheel assemblies (5) are symmetrically fixedly arranged at the rear end of the bottom of the cart body (1), a brake assembly is also fixedly arranged on the cart body (1), the input end of the brake assembly is fixedly connected to one end of a cable (6), and the other end of the cable (6) is fixedly connected to the seat plate (4), and an adjustment assembly for adjusting the cable (6) to always be in a taut state is also fixedly arranged on the cart body (1); It also includes a controller and a plurality of weighing units, wherein the weighing units monitor the weight of the goods in the storage basket (2), each weighing unit monitors the weight change of the goods in an area, and each weighing unit corresponds to a different height of the seat plate (4); when taking goods out of the storage basket (2), the controller determines the gear position of the goods weight according to the weight monitored by the weighing unit, and the controller lowers the seat plate (4) to the height corresponding to the gear position through the lifting assembly according to the gear position of the goods weight in the storage basket (2); The adjustment component comprises at least one follower wheel (8), the cable (6) bypasses all the follower wheels (8) and the cables (6) located on both sides of each follower wheel (8) are parallel, and the controller adjusts the distance S that the follower wheel (8) moves along the extension direction of the parallel section of the cable (6) in real time according to the height H of the seat plate (4) raised / lowered.

3. The intelligent lifting trolley seat height adjustment system according to claim 2, characterized in that: The adjustment assembly comprises a follower wheel (8), a first telescopic member (9) and two guide wheels (10), side panels (11) are fixedly arranged on both sides of the cart body (1), the follower wheel (8) is slidably arranged on the side panels (11), the guide wheel (10) is fixedly arranged on the side panels (11), the cable (6) passes around the first guide wheel (10), the follower wheel (8) and the second guide wheel (10) in sequence, the telescopic end of the first telescopic member (9) is fixedly connected to the follower wheel (8), and the relationship between the moving distance S of the follower wheel (8) and the height H of the seat plate (4) raised / lowered is S=0.5H; The first telescopic member (9) is a cylinder, and the first telescopic member (9) is fixedly arranged on the side plate (11).

4. The intelligent lifting trolley seat height adjustment system according to claim 2, characterized in that: The lifting assembly comprises a scissor arm (12), a driving member (13) and two groups of slide rails (14), one group of the slide rails (14) is fixedly arranged at the bottom of the support plate (3), and the other group of the slide rails (14) is fixedly arranged on the trolley body (1), the top and bottom of the scissor arm (12) are rotatably provided with sliders (15), the sliders (15) at the top and the bottom are respectively slidably connected to the two groups of slide rails (14), the driving member (13) is fixedly arranged on the trolley body (1), and the output end of the driving member (13) is fixedly connected to the slider (15) at the bottom.

5. The intelligent lifting trolley seat height adjustment system according to claim 4, characterized in that: The driving member (13) comprises two cylinders, and the output ends of the two cylinders are respectively fixedly connected to the two sliders (15) at the bottom of the scissor arm (12).

6. The intelligent lifting trolley seat height adjustment system according to claim 2, characterized in that: The brake assembly comprises a rotating rod (16), a sleeve (17), and a latch (18); the rotating rod (16) is rotatably arranged on the cart body (1); the sleeve (17) is fixedly arranged at the bottom of the cart body (1); the latch (18) is slidably inserted in the sleeve (17); one end of the latch (18) faces the rear wheel assembly (5); an elastic reset member (19) is fixedly arranged between the other end of the latch (18) and the end of the sleeve (17); one end of the rotating rod (16) is fixedly connected to the cable (6); the other end of the rotating rod (16) is fixedly arranged with a pressure rod (20); the side wall of the pressure rod (20) abuts against the end of the latch (18) away from the rear wheel assembly (5).

7. The intelligent lifting trolley seat height adjustment system according to claim 2, characterized in that: A plurality of cells (21) are fixedly arranged inside the storage basket (2), and the weighing unit comprises a plurality of pressure sensors (22), wherein the pressure sensors (22) are fixedly arranged at the bottom of the cells (21).

8. The intelligent lifting trolley seat height adjustment system according to claim 2, characterized in that: It also includes two guide columns (23), which are symmetrically fixed on the cart body (1), and a connecting rod (24) is fixed between the two support plates (3), and both ends of the connecting rod (24) are slidably connected to the guide columns (23).

9. The intelligent lifting trolley seat height adjustment system according to claim 8, characterized in that: A handle (25) is fixedly provided on each of the two guide columns (23), a stop rod (26) is fixedly provided between the two handles (25), the stop rod (26) is used to block and limit the seat plate (4) when it is flipped upward, and a locking assembly for fixing the seat plate (4) is also fixedly provided on the handle (25).

10. The intelligent lifting trolley seat height adjustment system according to claim 9, characterized in that: The locking assembly comprises a locking groove (27), wherein the locking groove (27) is fixedly arranged on the inner side of the handle (25), a stopper (28) is slidably inserted in the locking groove (27), a spring (29) is fixedly arranged between the stopper (28) and the inner bottom surface of the locking groove (27), and the outer end of the stopper (28) has an arc surface.

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