Stock bin structure
By designing a hopper structure that includes a first hopper, a second hopper, and a partition, the problems of small storage space and feeding blockage were solved, achieving efficient storage and feeding of reaction cups and ensuring continuous detection by the immunoassay analyzer.
Patent Information
- Application Number
- CN202423320944.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing silo structure has limited storage space, low feeding efficiency, and is prone to jamming, which affects the continuity of detection in immunoassay equipment.
A silo structure including a first hopper, a second hopper, and a partition is designed. The first hopper has a discharge port on its side wall. The second hopper overlaps the first hopper and is connected through a connection port. The partition is used to guide the reaction cup, so that it moves from the feed port to the cup inlet, avoiding dense stacking and improving the utilization rate of storage space.
It improves the utilization rate of storage space in the silo, avoids dense stacking of reaction cups, ensures the continuity of feeding and the stability of the detection process, and meets the high-speed feeding requirements of immunoassay equipment.
Smart Images
Figure CN223658875U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to in-vitro diagnosis automation equipment technical field, concretely relates to a stock bin structure. BACKGROUND
[0002] The immunological analysis equipment for in-vitro diagnosis usually adopts the chain wheel and chain transmission mode to transport the material cup, in order to improve the feeding efficiency, the chain wheel and chain are usually arranged in the stock bin interior, this leads to the storage space of stock bin being compressed, so that the stock bin cannot accommodate more reaction cups, and the staff needs to put the material cup into the stock bin in batches, which influences the feeding efficiency.In addition, due to the stock bin structure, a large number of reaction cups are densely stacked in the stock bin, which will cause the chain wheel and chain feeding to be stuck, so that the detection process cannot be continuously carried out. SUMMARY
[0003] Therefore, the utility model provides a stock bin structure to solve the problems of small storage space, low feeding efficiency and feeding jam in the cooperation of conventional stock bin and stock bin.
[0004] The utility model provides a stock bin structure, which comprises:
[0005] The first hopper is provided with a discharge port in the side wall and has an opening in the top;
[0006] The second hopper is lapped on the first hopper and connected with the opening through the connecting port in the bottom, and has a feeding port in the top;
[0007] The partition plate is connected to the inner wall of the first hopper near the discharge port in the first end and extends to the inner wall of the first hopper to form a cup inlet port opposite the first end, and the partition plate is used to guide the reaction cup moving from the feeding port to the opening to the cup inlet port.
[0008] Optionally, the shape of the discharge port is a long strip extending from the bottom of the side wall of the first hopper to the opening, and the partition plate extends in the downward direction from the position close to the discharge port, and has an avoiding space between the discharge port.
[0009] Optionally, the partition plate comprises a first panel, a second panel and a third panel connected in sequence, the discharge port is located between the first panel and the second panel, the free end of the first panel and the third panel is connected with the side wall of the first hopper and supports the second panel at a certain distance from the discharge port to form the avoiding space.
[0010] Optionally, the first panel and the second panel are connected by a first arc plate, and the second panel and the third panel are connected by a second arc plate.
[0011] Optionally, a sealing cover is arranged on the inner wall of the second hopper, the sealing cover is combined with the partition cover, and the discharge port extends to the sealing cover.
[0012] Optionally, a first gap is arranged on the side wall of the second hopper and communicates with the discharge port, and a top surface of the sealing cover extends to the side wall of the second hopper in a slanting manner, and the first gap extends from the discharge port to the sealing cover.
[0013] Optionally, the first hopper comprises a bottom plate, and a first side plate, a second side plate, a third side plate and a fourth side plate are sequentially connected and extend upwardly from the bottom plate, top ends of the first side plate, the second side plate, the third side plate and the fourth side plate enclose the opening, the discharge port is arranged on the first side plate, the first panel is connected with the first side plate and is in clearance fit with the second side plate, the second panel is in clearance fit with the third panel, and the third panel is connected with the first side plate and is in clearance fit with the third side plate.
[0014] Optionally, the third panel comprises adjacent first and second edges, the first edge is close to the fourth side plate and is connected with the fourth side plate, and the second edge is away from the fourth side plate and is in clearance fit with the fourth side plate.
[0015] Optionally, a material falling channel is arranged between the feeding port and the connecting port of the second hopper, and the material falling channel extends in a slanting manner along a height direction of the opening.
[0016] Optionally, the second hopper comprises at least a guide wall connected with the discharge port and extending in a slanting manner along a height direction.
[0017] Advantages:
[0018] 1. The hopper structure comprises a first hopper, a second hopper and a partition cover.
[0019] The first hopper is provided with a discharge port on the side wall, and the top has an opening, the discharge port is arranged on the side wall of the first hopper, the feeding device does not need to be installed in the first hopper, sufficient storage space is ensured in the first hopper, when the feeding device adopts a chain wheel and chain structure, the chain wheel and chain can partially extend into the discharge port, and thus the feeding effect is ensured.
[0020] The second hopper is overlapped on the first hopper, the bottom is connected with the opening through the connecting port, and the top is provided with the feeding port, so that the total storage space of the silo structure is increased, a large number of reaction cups can be accommodated at one time, and in general cases, all the reaction cups can be put into the second hopper through the feeding port at one time, the reaction cups in the second hopper can enter the first hopper through the connecting port and the opening of the first hopper, and then are fed through the discharging port.
[0021] In order to avoid that a large number of reaction cups are densely stacked in the first hopper and hinder the feeding action, a partition plate is arranged on the first hopper, the first end of the partition plate is close to the discharging port, and the second end opposite to the first end extends to the inner wall of the first hopper to form a cup inlet, and the partition plate is used for guiding the reaction cups moving from the feeding port to the opening to the cup inlet. In this way, during the movement of the reaction cups from the second hopper to the first hopper, the partition plate will first contact the reaction cups and guide the movement of the reaction cups. Specifically, after the reaction cups enter the opening of the first hopper, the reaction cups will fall on the partition plate and slide along the surface of the partition plate. Under the guidance of the partition plate, the reaction cups slide to the direction close to the cup inlet and fall on the bottom of the first hopper through the cup inlet. Since the discharging port is located at the first end of the partition plate and the cup inlet is formed at the position opposite to the first end, a large number of reaction cups will be stacked on the bottom of the first hopper and the side wall below the cup inlet. When a large number of reaction cups are stacked on the side wall of the first hopper, the subsequent reaction cups cannot enter the cup inlet and are stacked on the partition plate. When the reaction cups close to the discharging port are gradually transferred out of the first hopper, the reaction cups stacked on the side wall of the first hopper will gradually slide to the direction close to the discharging port, and the process continues in this way until all the reaction cups are transferred out of the first hopper.
[0022] In summary, the silo structure of the utility model improves the utilization rate of the storage space, and can also avoid the dense stacking of the reaction cups and the feeding jamming, ensures the continuity of the detection process, and meets the high-speed feeding requirement of the immune analysis equipment.
[0023] 2、In the silo structure of the utility model, the shape of the discharging port is a long strip, extending from the bottom of the side wall of the first hopper to the opening, the partition plate extends in the downward direction from the position close to the discharging port, and the partition plate and the inner wall of the first hopper form an avoiding space. The long strip-shaped discharging port enables the feeding device to further extend into the discharging port, so that the structure becomes compact. The avoiding space formed by the partition plate and the inner wall of the first hopper can avoid the interference of the reaction cups on the work of the feeding device. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0025] Figure 1 It is a three-dimensional structure schematic diagram of the bin structure of the embodiment of the present application.
[0026] Figure 2 It is an internal structure schematic diagram of the bin structure of the embodiment of the present application.
[0027] Figure 3 It is a cross-sectional structure schematic diagram of the bin structure of the embodiment of the present application.
[0028] Figure 4 It is a cross-sectional structure schematic diagram of the bin structure of the embodiment of the present application from another angle.
[0029] Figure 5 It is a structure schematic diagram of the cooperation relationship between the partition plate and the first hopper of the embodiment of the present application.
[0030] Figure 6 It is a top view angle structure schematic diagram of the cooperation relationship between the partition plate and the first hopper of the embodiment of the present application.
[0031] Figure 7 It is a structure schematic diagram of the partition plate of the embodiment of the present application.
[0032] Figure 8 It is a structure schematic diagram of the cooperation between the partition plate and the sealing cover of the embodiment of the present application.
[0033] Explanation of reference signs:
[0034] 1, first hopper; 11, discharge port; 111, first notch; 12, opening; 131, first side plate; 132, second side plate; 133, third side plate; 134, fourth side plate; 141, first connecting wall; 142, second connecting wall; 101, bottom plate; 2, second hopper; 21, connecting port; 22, feeding port; 23, material falling channel; 241, guide wall; 242, first enclosing wall; 243, second enclosing wall; 244, third enclosing wall; 26, sealing cover; 261, top surface; 3, partition plate; 31, first panel; 32, second panel; 33, third panel; 331, first edge; 332, second edge; 34, first arc plate; 35, second arc plate; 4, cup feeding port; 5, avoiding space; 6, connecting wall. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0036] As shown in Figure 1 , Figure 2 and Figure 3 , Figure 1 a perspective structural schematic view of the bin structure in the embodiment is shown, and the connecting relationship of the first hopper 1 and the second hopper 2 and the setting position of the discharge port 11 are specifically shown, Figure 2 a schematic view of the internal structure of the bin structure in the embodiment is shown, and the installation position of the partition plate 3 is specifically shown, Figure 3 a sectional structural schematic view of the bin structure in the embodiment is shown, and the setting position of the cup inlet 4 is specifically shown.
[0037] The embodiment provides a bin structure, which comprises a first hopper 1, a second hopper 2 and a partition plate 3.
[0038] The first hopper 1 side wall is provided with a discharge port 11, and the top has an opening 12. The discharge port 11 is arranged on the side wall of the first hopper 1, so that the feeding device does not need to be installed in the first hopper 1, thereby ensuring that the first hopper 1 has sufficient storage space. When the feeding device adopts a chain wheel and chain structure, the chain wheel and chain can partially extend into the discharge port 11, so that the feeding effect can be ensured.
[0039] The second hopper 2 is overlapped on the first hopper 1, and the bottom is connected with the opening 12 through a connecting port 21. The top has a feeding port 22. The arrangement of the second hopper 2 increases the total storage space of the bin structure, so that the bin structure can accommodate a large number of reaction cups at one time. Under normal circumstances, the staff can put all the reaction cups into the second hopper 2 through the feeding port 22 at one time. The reaction cups in the second hopper 2 can enter the first hopper 1 through the connecting port 21 and the opening 12 of the first hopper 1, and then be fed through the discharge port 11.
[0040] In order to avoid that a large number of reaction cups are densely stacked in the first hopper 1 to hinder the feeding action, the partition plate 3 is arranged on the first hopper 1. The first end of the partition plate 3 is close to the discharge port 11, and the second end opposite to the first end extends to form a cup inlet 4 with the inner wall of the first hopper 1. The partition plate 3 is used for guiding the reaction cups moving from the feeding port 22 to the opening 12 to the cup inlet 4. There is a gap between the second end of the partition plate 3 and the inner wall of the first hopper 1, so as to form the cup inlet 4.
[0041] With this configuration, as the reaction cup moves from the second hopper 2 to the first hopper 1, the partition 3 will first contact the reaction cup and guide its movement. Specifically, after the reaction cup enters through the opening 12 of the first hopper 1, it will fall onto the partition 3 and slide along the surface of the partition 3. Guided by the partition 3, the reaction cup will slide towards the inlet 4 and fall onto the bottom of the first hopper 1 through the inlet 4. Since the outlet 11 is located at the first end of the partition 3, and the inlet 4 is formed at the opposite position to the first end, a large number of reaction cups will gradually stack up on the side wall below the inlet 4 at the bottom of the first hopper 1. When a large number of reaction cups are stacked on the side wall of the first hopper 1, the reaction cups that enter later cannot pass through the inlet 4 and will thus stack on the partition 3. As the reaction cups near the outlet 11 are gradually transferred out of the first hopper 1, the reaction cups stacked on the side wall of the first hopper 1 will gradually slide towards the outlet 11, and this process will continue until all the reaction cups are transferred out of the first hopper 1.
[0042] In summary, the hopper structure of this invention improves the utilization rate of storage space, while also avoiding dense stacking of reaction cups and preventing feeding jams, thus ensuring the continuity of the detection process and meeting the high-speed feeding requirements of immunoassay equipment.
[0043] like Figure 1 As shown, in this embodiment, the discharge port 11 is elongated and extends from the bottom of the side wall of the first hopper 1 towards the opening 12. The partition 3 extends obliquely downward from a position near the discharge port 11, and there is a clearance space 5 between it and the discharge port 11. The elongated discharge port 11 allows the feeding device to extend further into the discharge port 11, making the structure more compact. The clearance space 5 formed between the partition 3 and the inner wall of the first hopper 1 can prevent the reaction cup from interfering with the operation of the feeding device.
[0044] like Figure 2 , Figure 3 and Figure 4 As shown, Figure 4 A cross-sectional view of the hopper structure from another angle is shown, specifically illustrating the relationship between the second hopper 2 and the partition.
[0045] In the embodiment, the partition plate 3 comprises a first panel 31, a second panel 32 and a third panel 33 connected in sequence, the discharge port 11 is located between the first panel 31 and the second panel 32, and the free ends of the first panel 31 and the third panel 33 are attached to and connected with the side wall of the first hopper 1, for example, the free ends of the first panel 31 and the third panel 33 can be riveted to the inner wall of the first hopper 1, and the second panel 32 is supported at a distance from the discharge port 11 to form the avoidance space 5. The first panel 31, the second panel 32 and the third panel 33 can be flat structures, and a continuous gap is formed between the first panel 31, the second panel 32, the third panel 33 and the first hopper 1, thereby increasing the size of the cup inlet 4.
[0046] After the reaction cup enters the second hopper 2, it will first contact the third panel 33 and slide along the third panel 33 to the bottom plate 101 of the first hopper 1 through the cup inlet 4, and then be transferred from the discharge port 11 through the bottom plate 101. The avoidance space 5 formed can avoid the reaction cup from contacting the feeding device extending into the discharge port 11. Specifically, when the number of reaction cups is large, the reaction cups will be stacked in sequence along the arrangement direction of the third panel 33, the second panel 32 and the first panel 31 on the inner wall of the first hopper 1, until the inner wall of the first hopper 1 corresponding to the first panel 31 is stacked with reaction cups, and then the reaction cups will be arranged in sequence along the surfaces of the third panel 33, the second panel 32 and the first panel 31, and so on. In this way, the reaction cup can be ensured to slide in sequence to the bottom wall of the first hopper 1, avoiding the dense stacking of a large number of reaction cups, which affects the feeding action of the feeding device, and ensuring the feeding progress.
[0047] As shown in Figure 2 and Figure 7 , Figure 7 shows a structural schematic diagram of the partition plate, in the embodiment, the first panel 31 and the second panel 32 are connected through the first arc plate 34, the second panel 32 and the third panel 33 are connected through the second arc plate 35, and the first arc plate 34 and the second arc plate 35 are used to smoothly transition the connection of the above three panels, so that the reaction cup can smoothly slide along the third panel 33, the second arc plate 35, the second panel 32, the first arc plate 34 and the first panel 31.
[0048] As shown in Figure 3 , Figure 7 Figure 8 and Figure 8 , Figure 8 shows a structural schematic diagram of the partition plate cooperating with the sealing cover, in the embodiment, the inner wall of the second hopper 2 is provided with a sealing cover 26, the sealing cover 26 is covered together with the partition plate 3, and the discharge port 11 extends close to the sealing cover 26. The sealing cover 26 can be fixed on the inner wall of the second hopper 2 by rivets.
[0049] Since the first panel 31 and the third panel 33 support the second panel 32 at a distance from the discharge port 11, the top edges of the first panel 31, the second panel 32 and the third panel 33 enclose an opening 301, which can be sealed by the closure cover 26, thereby avoiding that reaction cups entering the second hopper 2 from the opening 301 enter the discharge port 11. At the same time, the closure cover 26 also increases the maximum extension length of the discharge port 11, so that the feeding device can further extend into the discharge port 11, and the structure becomes more compact.
[0050] As shown in Figure 1 , in the present embodiment, the side wall of the second hopper 2 is provided with a first gap 111 in communication with the discharge port 11, and the top surface 261 of the closure cover 26 extends obliquely to connect with the side wall of the second hopper 2, and the first gap 111 extends from the discharge port 11 to near the closure cover 26.
[0051] The first gap 111 further increases the maximum extension length of the discharge port 11, and the oblique arrangement of the closure cover 26 can directly guide the falling reaction cups to the direction of the cup inlet 4, and on the other hand, it is also beneficial to reduce the volume of the closure cover 26. The closure cover 26 can have a surrounding edge and a top surface 261, the two edges of the surrounding edge are larger in size and connected with the inner wall of the second hopper 2, and the middle part is smaller in size and cooperates with the shape of the edge of the top surface 261, thereby forming the closure cover 26 with an inclined surface.
[0052] As shown in Figure 1 , Figure 3 , Figure 5 , in the present embodiment, the top of the first hopper 1 has a connecting wall 6, and the second hopper 2 is connected with the connecting wall 6. The connecting wall 6 can be provided with a second gap corresponding to the discharge port 11 and the first gap 111, thereby further extending the maximum extension length of the discharge port 11, and increasing the height size of the first hopper 1 and the effective storage space. The first hopper 1, the second hopper 2 and the connecting wall 6 can be made of sheet metal material, and the manufacturing process is simple. The connecting wall 6 can be fixed with the first hopper 1 and the second hopper 2 by bolt connection.
[0053] As shown in Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, in the embodiment, the first hopper 1 comprises a bottom plate 101, and a first side plate 131, a second side plate 132, a third side plate 133 and a fourth side plate 134 connected in sequence and extending upwardly from the bottom plate 101, the top ends of the first side plate 131, the second side plate 132, the third side plate 133 and the fourth side plate 134 enclose the opening 12, the discharge port 11 is arranged on the first side plate 131, the first panel 31 is connected with the first side plate 131 and is in clearance fit with the second side plate 132, the second panel 32 is in clearance fit with the third panel 33, and the third panel 33 is connected with the first side plate 131 and is in clearance fit with the third side plate 133.
[0054] The first side plate 131, the second side plate 132, the third side plate 133 and the fourth side plate 134 arranged obliquely can make the bottom plate 101 small enough to ensure that the reaction cups can be attached and stacked on the above-mentioned side plates, so that the reaction cups have a tendency to slide to the bottom plate 101, and specifically, when the reaction cups on the bottom plate 101 are removed, the reaction cups on any side plate can slide to the bottom plate 101 by gravity, and so on, until all the reaction cups are removed. The first panel 31, the second panel 32 and the third panel 33 are in clearance fit with the corresponding side plates, thereby forming the cup inlet 4 in the shape of an arc, and the first panel 31, the second panel 32 and the third panel 33 also have a guiding effect, so that all the reaction cups can slide to the bottom plate 101, avoiding material jam in the hopper.
[0055] As shown in Figure 2 , Figure 6 and Figure 7 , in the embodiment, the third panel 33 comprises a first edge 331 and a second edge 332 adjacent to each other, the first edge 331 is close to the fourth side plate 134 and is connected with the fourth side plate 134, and the second edge 332 is away from the fourth side plate 134 and is in clearance fit with the fourth side plate 134, so that the reaction cups entering from the second hopper 2 can be blocked by the first edge 331 and move in the direction of the third side plate 133 under the guidance of the second edge 332, so that the reaction cups entering from the second hopper 2 can be prevented from entering the bottom plate 101 directly along the fourth side plate 134, and the reaction cups can be stacked reasonably.
[0056] As shown in Figure 4 , in the embodiment, the second hopper 2 is provided with a dropping channel 23 between the inlet 22 and the connecting port 21, and the dropping channel 23 extends obliquely along the height direction relative to the opening 12, so that the reaction cups have a momentum in the horizontal direction, thereby being suitable for cooperating with the partition plate 3 to guide the reaction cups to the cup inlet 4 as described above.
[0057] As shown in Figure 4As shown in the embodiment, the second hopper 2 at least comprises a guide wall 241 connected with the discharge port 11 and extending in the height direction, and the reaction cup slides to the partition plate 3 under the guidance of the guide wall 241, and meanwhile the second hopper 2 can be tilted as a whole, thereby increasing the storage capacity of the second hopper 2, for example, the second hopper 2 can be enclosed by the guide wall 241, a first surrounding wall 242, a second surrounding wall 243 and a third surrounding wall 244, wherein the extension directions of the guide wall 241 and the second surrounding wall 243 are parallel to each other, the first surrounding wall 242 and the third surrounding wall 244 are connected in a matched shape, and the feeding port 22 is formed by the top edges of the guide wall 241, the first surrounding wall 242, the second surrounding wall 243 and the third surrounding wall 244.
[0058] As shown in the embodiment, the edge of the discharge port 11 is provided with the first connecting wall 141 and the second connecting wall 142, so as to be connected with the feeding device. Figure 1
[0059] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.
Claims
1. A silo structure, characterized by The utility model provides a reaction cup feeding device, which comprises: a first hopper (1) with a discharge port (11) formed in a side wall and an opening (12) formed in a top portion; a second hopper (2) lapped on the first hopper (1), connected to the opening (12) through a connecting port (21) formed in a bottom portion, and provided with an inlet port (22) in a top portion; a partition plate (3) connected to an inner wall of the first hopper (1) near the discharge port (11) and extending to an inner wall of the first hopper (1) to form a cup inlet (4) opposite to the first end, the partition plate (3) being used to guide reaction cups moving from the inlet port (22) to the opening (12) to the cup inlet (4).
2. The stock bin structure of claim 1, wherein, The discharge port (11) is in a strip shape, extending from a bottom portion of the side wall of the first hopper (1) to the opening (12), and the partition plate (3) extends in a downward and oblique direction from a position close to the discharge port (11) and has an avoiding space (5) with the discharge port (11).
3. The stock bin structure of claim 2, wherein, The partition plate (3) comprises a first panel (31), a second panel (32), and a third panel (33) connected in sequence, the discharge port (11) is located between the first panel (31) and the second panel (32), the free ends of the first panel (31) and the third panel (33) are connected to the side wall of the first hopper (1) and support the second panel (32) at a distance from the discharge port (11) to form the avoiding space (5).
4. The stock bin structure of claim 3, wherein, The first panel (31) and the second panel (32) are connected through a first arc plate (34), and the second panel (32) and the third panel (33) are connected through a second arc plate (35).
5. The stock bin structure of claim 3, wherein, An inner wall of the second hopper (2) is provided with a sealing cover (26), the sealing cover (26) is closed together with the partition plate (3), and the discharge port (11) extends close to the sealing cover (26).
6. The stock bin structure of claim 5, wherein, A side wall of the second hopper (2) is provided with a first notch (111) in communication with the discharge port (11), a top surface (261) of the sealing cover (26) extends obliquely to be connected to the side wall of the second hopper (2), and the first notch (111) extends from the discharge port (11) close to the sealing cover (26).
7. The stock bin structure of claim 3, wherein, The first hopper (1) comprises a bottom plate (101), a first side plate (131), a second side plate (132), a third side plate (133), and a fourth side plate (134) connected in sequence and extending upwardly from the bottom plate (101), top ends of the first side plate (131), the second side plate (132), the third side plate (133), and the fourth side plate (134) are enclosed to form the opening (12), the discharge port (11) is arranged on the first side plate (131), the first panel (31) is connected to the first side plate (131) and is in clearance fit with the second side plate (132), the second panel (32) is in clearance fit with the third panel (33), and the third panel (33) is connected to the first side plate (131) and is in clearance fit with the third side plate (133).
8. The stock bin structure of claim 7, wherein, The third panel (33) comprises adjacent first and second edges (331, 332), the first edge (331) is close to and connected with the fourth side plate (134), and the second edge (332) is away from and in gap fit with the fourth side plate (134).
9. The stock bin structure according to any one of claims 1 to 8, characterized in that, A material falling channel (23) is arranged between the feeding opening (22) and the connecting opening (21) of the second hopper (2), and the material falling channel (23) extends obliquely along the height direction relative to the opening (12).
10. The stock bin structure of claim 9, wherein, The second hopper (2) at least comprises a guide wall (241) connected with the discharge opening (11) and extending obliquely along the height direction.