Three-layer annular sorting equipment

Abstract

The three-layer annular sorting equipment comprises a rack, a driving mechanism, a plurality of upper-layer sorting trolleys, a plurality of middle-layer sorting trolleys and a plurality of lower-layer sorting trolleys, a first annular track and a second annular track are arranged on the rack, the first annular track is arranged above the second annular track, and the second annular track is arranged above the second annular track. The driving mechanism is arranged on the rack, the upper-layer sorting trolleys are connected end to end to form an upper sorting layer, the middle-layer sorting trolleys are connected end to end to form a middle sorting layer, the lower-layer sorting trolleys are connected end to end to form a lower sorting layer, the upper sorting layer slides along the first annular track, the middle sorting layer slides along the second annular track, and the lower sorting layer slides along the second annular track. The lower-layer sorting trolley is hung on the middle-layer sorting trolley, the driving mechanism drives the upper sorting layer to move, and a shifting rod is arranged between the upper sorting layer and the middle sorting layer. Compared with the prior art, the sorting efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the field of logistics sorting equipment, and in particular to a three-layer annular sorting equipment. Background Art

[0002] Among the existing logistics sorting technologies, the single-layer sorting mode accounts for a large proportion. This mode mainly relies on the sorting trolley to run on the single-layer track of the sorting machine to realize the sorting process of goods. During operation, the goods are first placed on the sorting trolley, and then the sorting trolley is driven by the power of the sorting machine to move along the fixed single-layer track to the designated location. After arriving, the goods are transferred to the corresponding collection area through corresponding actions to complete the sorting task.

[0003] However, the single-layer sorting mode has many defects that are difficult to overcome, which seriously restricts the improvement of sorting efficiency. First, the flexibility of its sorting layout is poor. Due to the single-layer structure, the track design of the sorting machine is relatively fixed, and it is difficult to make quick and effective adjustments according to the changes in the flow of goods, differences in categories, and business needs at different times. For example, when encountering certain special promotional activities that lead to a surge in the volume of goods in a specific category, it is impossible to quickly optimize the sorting path and area based on the existing single-layer structure to adapt to this temporary business peak. Secondly, the space utilization rate of the single-layer sorting mode is low. The sorting track is only set on a single plane, which limits the number of sorting carts that can be accommodated in a unit area, and the space resources of the logistics center cannot be fully utilized, which limits the overall processing capacity of the sorting system. Furthermore, when facing complex sorting tasks, the single-layer sorting mode has poor consistency and coordination in the overall sorting process. Goods from different destinations are processed sequentially on the same single-layer track, which can easily lead to a backlog of sorting tasks. Even if the sorting cart itself runs smoothly, delays are likely to occur in the overall task allocation and process connection links, which in turn affects the efficiency of the entire sorting operation.

[0004] In view of this, a three-layer ring sorting device is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a three-layer annular sorting device, which can effectively improve the sorting efficiency.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A three-layer annular sorting equipment comprises a frame, a driving mechanism, a plurality of upper-layer sorting trolleys, a plurality of middle-layer sorting trolleys and a plurality of lower-layer sorting trolleys, the frame being provided with a first annular track and a second annular track, the first annular track being provided above the second annular track, the driving mechanism being provided on the frame, a plurality of the upper-layer sorting trolleys being connected end to end to form an upper sorting layer, a plurality of the middle-layer sorting trolleys being connected end to end to form a middle sorting layer, a plurality of the lower-layer sorting trolleys being connected end to end to form a lower sorting layer, the upper sorting layer slides along the first annular track, the middle sorting layer slides along the second annular track, the lower-layer sorting trolley is suspended on the middle-layer sorting trolley, the driving mechanism drives the upper sorting layer to move, and a shifting rod is provided between the upper sorting layer and the middle sorting layer.

[0008] In a preferred embodiment, the lever comprises a first rod body and a second rod body, an insertion hole is provided at the end of the first rod body, and the second rod body is inserted into the insertion hole.

[0009] In a preferred embodiment, an elastic buffer is provided in the insertion hole, and the end of the second rod body abuts against the elastic buffer.

[0010] In a preferred embodiment, the elastic buffer is configured as an air bag.

[0011] In a preferred embodiment, the airbag has a connected vertical portion and a base portion, the vertical portion is arranged between the inner wall of the socket and the outer wall of the second rod body, and when the lever plays a shifting role, the vertical portion is squeezed, and the base portion is arranged between the bottom of the socket and the end of the second rod body.

[0012] In a preferred embodiment, a secondary plate is provided on the upper sorting layer, and the driving mechanism is configured as a magnetic driving mechanism for driving the secondary plate to move.

[0013] In a preferred embodiment, the upper-level sorting trolley comprises an upper-level frame, an upper-level boom and an upper-level car body, the upper-level frame is provided with an upper-level rail wheel, and the upper-level rail wheel cooperates with the first circular track, the upper end of the upper boom is connected to the upper-level frame, and the lower end is connected to the upper-level car body, the middle-level sorting trolley comprises a middle-level car body and a middle-level frame, the middle-level frame is arranged on the middle-level car body, the middle-level frame is provided with a middle-level rail wheel, and the middle-level rail wheel cooperates with the second circular track, the lower-level sorting trolley comprises a lower-level boom and a lower-level car body, the upper end of the lower boom is connected to the middle-level car body, and the lower end is connected to the lower-level car body.

[0014] In a preferred embodiment, an upper connecting ring and an upper connecting seat are respectively provided on the left and right sides of the upper frame, and the upper connecting seat includes a first upper connecting plate and a second upper connecting plate, the first upper connecting plate and the second upper connecting plate are arranged in parallel, and the first upper connecting plate and the second upper connecting plate are provided with upper through holes for bolts to pass through; a middle connecting ring and a middle connecting seat are respectively provided on the left and right sides of the middle vehicle body, and the middle connecting seat includes a first middle connecting plate and a second middle connecting plate, the first middle connecting plate and the second middle connecting plate are arranged in parallel, and the first middle connecting plate and the second middle connecting plate are provided with middle through holes for bolts to pass through.

[0015] In a preferred embodiment, the upper track wheels include a plurality of upper horizontal wheels and a plurality of upper longitudinal wheels, the upper horizontal wheels contact the side surfaces of the first circular track, and the upper longitudinal wheels contact the top surface of the first circular track, and the middle track wheels include a plurality of middle horizontal wheels and a plurality of middle longitudinal wheels, the middle horizontal wheels contact the side surfaces of the second circular track, and the middle longitudinal wheels contact the top surface of the second circular track.

[0016] In a preferred embodiment, it also includes a sorting grid opening, which is arranged on one side of the frame. The sorting grid opening is provided with a plurality of grids, and the plurality of grids are arranged in three layers, namely an upper sorting layer, a middle sorting layer and a lower sorting layer.

[0017] Compared with the prior art, the present invention provides a three-layer annular sorting equipment. In the structural system of the equipment, the frame serves as the basic supporting component, which carries the operation of the entire sorting system. The first annular track and the second annular track are arranged on the frame, and the first annular track is located above the second annular track. This double-layer track design lays a spatial structural foundation for the construction of the three-layer sorting layer. Multiple upper-layer sorting carts are connected to each other end to end to form an upper sorting layer, which can slide stably along the first annular track. This sliding process is driven by a driving mechanism arranged on the frame. When the driving mechanism is started, power is transmitted to the multiple upper-layer sorting carts of the upper sorting layer, causing them to start running on the first annular track.

[0018] At the same time, the lever set between the upper sorting layer and the middle sorting layer plays a linkage role. With the movement of the upper sorting trolley, the lever interacts with the middle sorting trolley, driving the middle sorting layer composed of multiple middle sorting trolleys to slide along the second circular track. And because there is a hanging connection relationship between the lower sorting trolley and the middle sorting trolley, the movement of the middle sorting layer further pulls the lower sorting trolley to move synchronously, thereby realizing the coordinated drive of the three sorting layers only through the drive mechanism located on the top layer. This driving method greatly simplifies the power transmission system of the equipment and reduces the number and complexity of the drive device, which not only reduces the manufacturing cost of the equipment, but also in the daily maintenance of the equipment, only a single drive mechanism needs to be maintained, repaired and troubleshooted, which significantly improves the maintainability of the equipment.

[0019] During the sorting process, the three-layer sorting layer can work independently according to different sorting task requirements. The upper sorting layer, the middle sorting layer and the lower sorting layer each have independent sorting operation areas and path planning, and can handle multiple types of goods with different destinations at the same time. For example, for some urgent or high-priority goods, they can be assigned to the upper sorting layer for rapid sorting and processing; the middle sorting layer can handle medium-priority or specific categories of goods; and the lower sorting layer is responsible for sorting other conventional goods. This mode of independent and coordinated work in layers effectively avoids the problems of task backlog, queuing and low sorting efficiency caused by fixed layout in the traditional single-layer sorting mode. It makes full use of space resources, increases the handling volume of goods per unit time, greatly improves the production efficiency and throughput capacity of the entire sorting system, and enables logistics sorting operations to respond to large-scale and diversified goods sorting needs more efficiently, flexibly and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The invention relates to a structural schematic diagram of a three-layer annular sorting device.

[0021] Figure 2 The invention relates to a schematic diagram of the matching structure of a driving mechanism of a three-layer annular sorting device and an upper-layer sorting trolley.

[0022] Figure 3 The invention relates to a schematic diagram of the coordination structure of an upper-layer sorting trolley, a middle-layer sorting trolley and a lower-layer sorting trolley of a three-layer annular sorting device.

[0023] Figure 4 The present invention relates to a partial longitudinal section structure schematic diagram of a shifting rod of a three-layer annular sorting device.

[0024] In the figure

[0025] Frame 1; first annular track 2; second annular track 3; lever 4; first rod body 5; socket 6; second rod body 7; vertical portion 8; base portion 9; driving mechanism 10; secondary plate 11; upper sorting trolley 12; upper frame 13; upper connecting ring 14; first upper connecting plate 15; second upper connecting plate 16; upper horizontal wheel 17; upper longitudinal wheel 18; upper through hole 19; upper hanging arm 20; upper vehicle body 21; middle sorting trolley 22; middle vehicle body 23; middle connecting ring 24; first middle connecting plate 25; second middle connecting plate 26; middle through hole 27; middle frame 28; middle horizontal wheel 29; middle longitudinal wheel 30; lower sorting trolley 31; lower hanging arm 32; lower vehicle body 33; sorting grid 34. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0028] like Figures 1 to 4 As shown, a three-layer annular sorting equipment comprises a frame 1, a driving mechanism 10, a plurality of upper-layer sorting trolleys 12, a plurality of middle-layer sorting trolleys 22 and a plurality of lower-layer sorting trolleys 31, the frame 1 is provided with a first annular track 2 and a second annular track 3, the first annular track 2 is provided above the second annular track 3, the driving mechanism 10 is provided on the frame 1, a plurality of the upper-layer sorting trolleys 12 are connected end to end to form an upper sorting layer, a plurality of the middle-layer sorting trolleys 22 are connected end to end to form a middle sorting layer, a plurality of the lower-layer sorting trolleys 31 are connected end to end to form a lower sorting layer, the upper sorting layer slides along the first annular track 2, the middle sorting layer slides along the second annular track 3, the lower-layer sorting trolley 31 is suspended on the middle-layer sorting trolley 22, the driving mechanism 10 drives the upper sorting layer to move, and a lever 4 is provided between the upper sorting layer and the middle sorting layer.

[0029] A three-layer annular sorting device of this embodiment, in the structural system of the device, the frame 1 serves as the basic supporting component, bearing the operation of the entire sorting system. The first annular track 2 and the second annular track 3 are arranged on the frame 1, and the first annular track 2 is located above the second annular track 3. This double-layer track design lays the spatial structural foundation for the construction of the three-layer sorting layer. A plurality of upper-layer sorting carts 12 are connected end to end to each other to form an upper sorting layer, which can slide stably along the first annular track 2, and this sliding process is driven by a driving mechanism 10 provided on the frame 1. When the driving mechanism 10 is started, power is transmitted to the plurality of upper-layer sorting carts 12 of the upper sorting layer, causing them to start running on the first annular track 2.

[0030] At the same time, the lever 4 arranged between the upper sorting layer and the middle sorting layer plays a linkage role. With the movement of the upper sorting trolley 12, the lever 4 interacts with the middle sorting trolley 22, driving the middle sorting layer composed of multiple middle sorting trolleys 22 to slide along the second circular track 3. And because there is a hanging connection relationship between the lower sorting trolley 31 and the middle sorting trolley 22, the movement of the middle sorting layer further pulls the lower sorting trolley 31 to move synchronously, thereby realizing the coordinated drive of the three sorting layers only through the driving mechanism 10 located on the top layer. This driving method greatly simplifies the power transmission system of the equipment, reduces the number and complexity of the driving device, not only reduces the manufacturing cost of the equipment, but also in the daily maintenance of the equipment, only a single driving mechanism 10 needs to be maintained, repaired and troubleshooted, which significantly improves the maintainability of the equipment.

[0031] During the sorting process, the three-layer sorting layer can work independently according to different sorting task requirements. The upper sorting layer, the middle sorting layer and the lower sorting layer each have independent sorting operation areas and path planning, and can handle multiple types of goods with different destinations at the same time. For example, for some urgent or high-priority goods, they can be assigned to the upper sorting layer for rapid sorting and processing; the middle sorting layer can handle medium-priority or specific categories of goods; and the lower sorting layer is responsible for sorting other conventional goods. This mode of independent and coordinated work in layers effectively avoids the problems of task backlog, queuing and low sorting efficiency caused by fixed layout in the traditional single-layer sorting mode. It makes full use of space resources, increases the handling volume of goods per unit time, greatly improves the production efficiency and throughput capacity of the entire sorting system, and enables logistics sorting operations to respond to large-scale and diversified goods sorting needs more efficiently, flexibly and accurately.

[0032] The lever 4 includes a first rod body 5 and a second rod body 7, wherein the end of the first rod body 5 is provided with a socket 6, into which the second rod body 7 is inserted. The lever 4 is composed of a first rod body 5 and a second rod body 7, wherein the end of the first rod body 5 is provided with a socket 6, into which the second rod body 7 is inserted, so that the two are in a state of relative movement. When the equipment is running, the movement trajectory and speed of the upper sorting layer and the middle sorting layer may be slightly different in actual working conditions. This movable connection can effectively adapt to the gap changes between the upper and middle sorting layers caused by factors such as manufacturing tolerances, track wear, and trolley running inertia. It avoids problems such as rigid collision, jamming or motion interference caused by gap changes, ensures that the lever 4 transmits power stably, ensures that the middle sorting layer can smoothly follow the movement of the upper sorting layer, and thus maintains the coordination and stability of the entire three-layer sorting system, reduces the occurrence rate of equipment failures, extends the service life of the equipment, and improves the continuity and reliability of the sorting operation.

[0033] An elastic buffer is provided in the socket 6, and the end of the second rod 7 abuts against the elastic buffer. When the first rod 5 and the second rod 7 are relatively displaced due to the relative movement of the upper sorting layer and the middle sorting layer, the elastic buffer can effectively absorb and disperse the impact force generated by this relative movement. During the sorting operation, various factors such as start-up acceleration, braking deceleration, uneven tracks or uneven distribution of goods may cause an instantaneous difference in the motion state between the upper sorting trolley 12 and the middle sorting trolley 22, thereby generating a relative force between the first rod 5 and the second rod 7. The elastic buffer, by virtue of its own elastic properties, deforms when the end of the second rod 7 abuts against it, converting the impact force into elastic potential energy for storage, thereby avoiding damage to the rod and the connected sorting trolley and other components caused by rigid impact, greatly reducing the risk of wear and fatigue damage of components, and extending the maintenance cycle and overall service life of the equipment. At the same time, this buffering effect can also significantly reduce the noise generated by collision and friction of components. In the logistics sorting environment, equipment often needs to run continuously for a long time. High-decibel noise will not only damage the hearing of operators, but also interfere with communication and collaboration in the workplace, reducing work efficiency. The elastic buffer effectively suppresses noise, creating a relatively quiet and comfortable working environment, helping to improve the work experience and concentration of operators, further ensuring the efficient and stable sorting operation, and improving the performance and operation quality of the entire three-layer ring sorting equipment from multiple aspects.

[0034] Specifically, the elastic buffer is configured as an airbag, which can produce a good buffering effect.

[0035] The airbag has a connected vertical portion 8 and a base portion 9, the vertical portion 8 is arranged between the inner wall of the socket 6 and the outer wall of the second rod body 7, when the lever 4 plays a shifting role, the vertical portion 8 is squeezed, and the base portion 9 is arranged between the bottom of the socket 6 and the end of the second rod body 7.

[0036] The number of the levers 4 is preferably 1-3, and more levers may be provided.

[0037] In actual logistics sorting operation scenarios, there are differences in the weight of the goods carried by the sorting carts at different positions on the circular track, which causes the weight distribution of the entire circular distribution to be uneven. When the position of the lever 4 is not in the same place as the area with heavier weight, the lever 4 will become relatively difficult to move. In particular, when the lever 4 is located in a straight section and the heavier area is in an arc section, the difficulty of such movement is more significant due to the influence of factors such as the lever arm. At this time, as the lever 4 plays a moving role, the vertical portion 8 of the airbag will be squeezed, and the gas will flow into the base portion 9, causing the volume of the base portion 9 to expand. This expansion process allows the total length of the first rod body 5 and the second rod body 7 to be extended, thereby achieving effective support between the upper sorting layer and the lower sorting layer, and applying additional pressure to the lower sorting layer. In this way, a balancing force is provided for the entire annular area, effectively compensating for the force difference caused by uneven weight distribution, making the force distribution of the entire annular area relatively uniform, avoiding the occurrence of adverse conditions such as obstruction of the lever 4 due to excessive local weight, equipment jamming or uncoordinated movement, and effectively ensuring that the sorting operation can proceed smoothly.

[0038] When the lever 4 is located in the same area as the area with heavier weight, since the cargo in other areas is lighter, when the lever 4 is moved in the area with heavier weight, even if the vertical portion 8 of the airbag is squeezed to expand the volume of the base portion 9 and change accordingly, it will not have a significant adverse effect on the overall moving effect. This fully demonstrates the ingenuity and high adaptability of the structural design. It can not only effectively balance the force in the case of uneven weight distribution and the separation of the lever 4 from the heavy area to ensure stable operation of the equipment, but also in the special case where the lever 4 coincides with the heavy area, it will not interfere with the normal operation of the equipment. This structure greatly enhances the operating stability and reliability of the equipment when facing complex and changeable cargo load conditions, significantly reduces the risk of various failures caused by uneven weight, and comprehensively improves the ability of the entire sorting system to cope with different cargo distribution patterns.

[0039] The upper sorting layer is provided with a secondary plate 11, and the driving mechanism 10 is configured as a magnetic driving mechanism 10, which is used to drive the secondary plate 11 to move. The magnetic driving mechanism 10 drives the secondary plate 11 of the upper sorting trolley 12 to realize the movement of the equipment, which has the advantages of contactless transmission, reduces mechanical wear and friction resistance, reduces maintenance costs, improves driving efficiency and stability, and is conducive to long-term reliable operation of the equipment.

[0040] Specifically, the upper-layer sorting trolley 12 includes an upper-layer frame 13, an upper-layer boom 20 and an upper-layer car body 21. The upper-layer frame 13 is provided with an upper-layer rail wheel, and the upper-layer rail wheel cooperates with the first circular track 2. The upper end of the upper boom 20 is connected to the upper-layer frame 13, and the lower end is connected to the upper-layer car body 21. The middle-layer sorting trolley 22 includes a middle-layer car body 23 and a middle-layer frame 28. The middle-layer frame 28 is arranged on the middle-layer car body 23. The middle-layer frame 28 is provided with a middle-layer rail wheel, and the middle-layer rail wheel cooperates with the second circular track 3. The lower-layer sorting trolley 31 includes a lower-layer boom 32 and a lower-layer car body 33. The upper end of the lower boom 32 is connected to the middle-layer car body 23, and the lower end is connected to the lower-layer car body 33. Through the specific structural design of the upper sorting trolley 12, the middle sorting trolley 22 and the lower sorting trolley 31, the trolley components on each layer cooperate with each other and are precisely adapted to the circular track to build a stable and reasonable three-layer architecture, effectively improving the space utilization and operational flexibility of the sorting system.

[0041] An upper connecting ring 14 and an upper connecting seat are respectively provided on the left and right sides of the upper frame 13, and the upper connecting seat includes a first upper connecting plate 15 and a second upper connecting plate 16, which are arranged in parallel, and upper through holes 19 for bolts to pass through are provided on the first upper connecting plate 15 and the second upper connecting plate 16, and the connection of adjacent upper frames 13 is achieved by bolts passing through adjacent upper through holes 19 and upper connecting rings 14; a middle connecting ring 24 and a middle connecting seat are respectively provided on the left and right sides of the middle car body 23, and the middle connecting seat includes a first middle connecting plate 25 and a second middle connecting plate 26, which are arranged in parallel, and middle through holes 27 for bolts to pass through are provided on the first middle connecting plate 25 and the second middle connecting plate 26, and the connection of adjacent middle car bodies 23 is achieved by bolts passing through adjacent middle through holes 27 and middle connecting rings 24.

[0042] The upper track wheels include multiple upper horizontal wheels 17 and multiple upper longitudinal wheels 18, the upper horizontal wheels 17 contact the side of the first circular track 2, and the upper longitudinal wheels 18 contact the top surface of the first circular track 2. The middle track wheels include multiple middle horizontal wheels 29 and multiple middle longitudinal wheels 30, the middle horizontal wheels 29 contact the side of the second circular track 3, and the middle longitudinal wheels 30 contact the top surface of the second circular track 3. Through the above structure, reliable cooperation with the first circular track 2 and the second circular track 3 is achieved.

[0043] A three-layer annular sorting device in this embodiment also includes a sorting grid opening 34, and the sorting grid opening is arranged on one side of the frame 1. The sorting grid opening 34 is provided with a plurality of grids, and the plurality of grids are arranged in three layers, namely an upper sorting layer, a middle sorting layer and a lower sorting layer, so as to facilitate sorting.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "include..." or "comprise..." do not exclude the existence of other elements in the process, method, article or terminal device including the elements. In addition, in this article, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself.

[0045] The above description of the embodiments is to facilitate the understanding and use of the present invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A three-layer ring sorting device, characterized in that: The invention comprises a frame, a driving mechanism, a plurality of upper-layer sorting trolleys, a plurality of middle-layer sorting trolleys and a plurality of lower-layer sorting trolleys, wherein the frame is provided with a first circular track and a second circular track, the first circular track is provided above the second circular track, the driving mechanism is provided on the frame, the plurality of upper-layer sorting trolleys are connected end to end to form an upper sorting layer, the plurality of middle-layer sorting trolleys are connected end to end to form a middle sorting layer, the plurality of lower-layer sorting trolleys are connected end to end to form a lower sorting layer, the upper sorting layer slides along the first circular track, the middle sorting layer slides along the second circular track, the lower-layer sorting trolley is suspended on the middle-layer sorting trolley, the driving mechanism drives the upper sorting layer to move, and a lever is provided between the upper sorting layer and the middle sorting layer.

2. A three-layer annular sorting device according to claim 1, characterized in that: The lever comprises a first rod body and a second rod body. An insertion hole is arranged at the end of the first rod body, and the second rod body is inserted into the insertion hole.

3. A three-layer annular sorting device according to claim 2, characterized in that: An elastic buffer is arranged in the insertion hole, and the end of the second rod body abuts against the elastic buffer.

4. A three-layer annular sorting device according to claim 3, characterized in that: The elastic buffer is configured as an air bag.

5. A three-layer annular sorting device according to claim 4, characterized in that: The airbag has a connected vertical portion and a base portion, the vertical portion is arranged between the inner wall of the socket and the outer wall of the second rod body, when the lever plays a shifting role, the vertical portion is squeezed, and the base portion is arranged between the bottom of the socket and the end of the second rod body.

6. A three-layer annular sorting device according to any one of claims 1 to 5, characterized in that: A secondary plate is provided on the upper sorting layer, and the driving mechanism is configured as a magnetic driving mechanism for driving the secondary plate to move.

7. A three-layer annular sorting device according to claim 6, characterized in that: The upper-layer sorting trolley comprises an upper-layer frame, an upper-layer boom and an upper-layer car body; the upper-layer frame is provided with an upper-layer track wheel, and the upper-layer track wheel cooperates with the first annular track; the upper end of the upper boom is connected to the upper-layer frame, and the lower end is connected to the upper-layer car body; the middle-layer sorting trolley comprises a middle-layer car body and a middle-layer frame; the middle-layer car frame is arranged on the middle-layer car body; the middle-layer frame is provided with a middle-layer track wheel, and the middle-layer track wheel cooperates with the second annular track; the lower-layer sorting trolley comprises a lower-layer boom and a lower-layer car body; the upper end of the lower boom is connected to the middle-layer car body, and the lower end is connected to the lower-layer car body.

8. A three-layer annular sorting device according to claim 7, characterized in that: An upper connecting ring and an upper connecting seat are respectively provided on the left and right sides of the upper frame, and the upper connecting seat includes a first upper connecting plate and a second upper connecting plate, the first upper connecting plate and the second upper connecting plate are arranged in parallel, and the first upper connecting plate and the second upper connecting plate are provided with upper through holes for bolts to pass through; a middle connecting ring and a middle connecting seat are respectively provided on the left and right sides of the middle vehicle body, and the middle connecting seat includes a first middle connecting plate and a second middle connecting plate, the first middle connecting plate and the second middle connecting plate are arranged in parallel, and the first middle connecting plate and the second middle connecting plate are provided with middle through holes for bolts to pass through.

9. A three-layer annular sorting device according to claim 7, characterized in that: The upper track wheels include multiple upper horizontal wheels and multiple upper longitudinal wheels, the upper horizontal wheels contact the side surfaces of the first circular track, and the upper longitudinal wheels contact the top surface of the first circular track; the middle track wheels include multiple middle horizontal wheels and multiple middle longitudinal wheels, the middle horizontal wheels contact the side surfaces of the second circular track, and the middle longitudinal wheels contact the top surface of the second circular track.

10. A three-layer annular sorting device according to claim 6, characterized in that: It also includes a sorting grid opening, which is arranged on one side of the frame. The sorting grid opening is provided with a plurality of grids, and the plurality of grids are arranged in three layers, namely an upper sorting layer, a middle sorting layer and a lower sorting layer.

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