Stock bin device and sample application equipment

Abstract

The embodiment of the utility model provides a stock bin device and sample application equipment. The stock bin device comprises a stock bin assembly, a jacking assembly, a feeding detection assembly and a controller, the stock bin assembly is provided with an opening and a storage cavity used for stacking materials, and the jacking assembly is used for jacking top-layer materials in the materials in the storage cavity to the upper limit position; the feeding detection assembly is located on the side of the material storage cavity, and the detection direction and the stacking direction of the materials are arranged at an angle, so that the feeding detection assembly obliquely detects the non-transparent top face of the top layer material located at the upper limit position towards the opening, and the controller is electrically connected to the jacking assembly and the feeding detection assembly. And the control assembly is used for controlling the jacking assembly to stop when the feeding detection assembly detects that the top-layer material exists at the upper limit position. The feeding detection assembly can accurately detect the top-layer material at the upper limit position, and the top-layer material can accurately stop at the upper limit position. The storage bin device is high in reliability, and the use experience of a user is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sample application technology, and specifically relates to a stock bin device and a sample application equipment with the same. BACKGROUND

[0002] Thin layer chromatography sample application experiment has a wide range of applications in the fields of chemistry, biology, medicine, environment, etc. For example, in the field of chemistry, thin layer chromatography sample application experiment can be used for separating and identifying compounds: by smearing the mixture to be separated on a thin layer chromatography plate, and then performing experimental analysis, the relative migration rate and relative content of each component can be obtained, so that the separation and identification of the mixture can be realized; in addition, thin layer chromatography sample application experiment can also be used for analyzing the progress and products of reactions: by sampling during the reaction process, and then analyzing on a thin layer chromatography plate, the progress of the reaction and the generation of the products can be understood.

[0003] Thin layer chromatography sample application experiment needs to be applied on the sample application plate, so the stock bin device is needed to feed the sample application plate. Specifically, the stock bin device can move the sample application plate to the desired position, and then the mechanical hand can feed it to the subsequent station for sample application. The conventional stock bin device is provided with a sensor, which detects the sample application plate from the side of the sample application plate to determine whether the sample application plate moves to the desired position.

[0004] However, since the sample application plate is usually made of transparent materials such as glass, when the sensor detects the sample application plate from the side of the sample application plate, the detection light sent by the sensor may pass through the sample application plate, so that it cannot return to the sensor, thereby the sensor cannot effectively detect the sample application plate, and the sample application plate cannot be accurately stopped at the desired position. In this way, the sample application plate cannot be fed by the mechanical hand, and the reliability of the stock bin device is low. SUMMARY

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a stock bin device is provided. The stock bin device comprises a stock bin assembly, a jacking assembly, a feeding detection assembly and a controller, the stock bin assembly is provided with an opening and a storage cavity for stacking materials, the jacking assembly is used for jacking the top layer of materials in the storage cavity to an upper limit position, the feeding detection assembly is located at the side of the storage cavity and is arranged at an angle with the stacking direction of the materials, so that the feeding detection assembly detects the non-transparent top surface of the top layer of materials at the upper limit position from the opening, and the controller is electrically connected to the jacking assembly and the feeding detection assembly, and is used for controlling the jacking assembly to stop when the feeding detection assembly detects that the upper limit position has the top layer of materials.

[0006] Exemplarily, the feeding detection assembly comprises a detection bracket and a sensor arranged on the detection bracket, the sensor is located at the side of the storage cavity and is used for detecting the non-transparent top surface of the top layer of material in the upper limit position by tilting towards the opening, and the controller is electrically connected to the sensor and is used for controlling the jacking assembly to stop when the sensor detects that the upper limit position has the top layer of material.

[0007] Exemplarily, the detection bracket comprises a vertical section and an inclined section, the inclined section extends downwardly and obliquely from the top of the vertical section, and the sensor is arranged on the inclined section.

[0008] Exemplarily, the silo device further comprises a base and a rotating disc arranged on the base, the jacking assembly and the feeding detection assembly are arranged on the base, the silo assembly comprises a plurality of silo assemblies arranged on the rotating disc, the rotating disc is used for driving the plurality of silo assemblies to rotate one by one to a feeding station, and the jacking assembly is used for jacking the top layer of material in the feeding station to the upper limit position.

[0009] Exemplarily, the silo assembly comprises a support plate and a plurality of limiting rods extending upwardly from the support plate respectively, the support plate and the plurality of limiting rods jointly form the storage cavity, the top ends of the plurality of limiting rods jointly form the opening, and the jacking assembly is used for penetrating through the support plate to jack the material in the storage cavity.

[0010] Exemplarily, the jacking assembly is located below the silo assembly, the jacking assembly comprises a jacking driving member and a jacking connecting member connected to the driving end of the jacking driving member, and the jacking driving member is used for jacking the top layer of material to the upper limit position through the jacking connecting member.

[0011] Exemplarily, the silo device further comprises a jacking detection assembly electrically connected to the controller, the jacking detection assembly is located at the side of the storage cavity, the bottom layer of material in the storage cavity is in the upper limit position when the jacking detection assembly detects the jacking connecting member, and the controller is used for controlling the jacking driving member to stop.

[0012] Exemplarily, the silo device further comprises a material detection assembly electrically connected to the controller, the material detection assembly is located at the side of the storage cavity and is used for detecting the material in the storage cavity by tilting upwardly, and the controller is used for controlling the jacking assembly to stop when the material detection assembly detects that the storage cavity has no material.

[0013] Exemplarily, the hopper device further comprises a pressing assembly, the pressing assembly comprising a pressing driving member and a pressing piece connected to a driving end of the pressing driving member, the pressing driving member being configured to drive the pressing piece to move between a pressing position in which the hopper assembly is pressed downward and a releasing position in which the hopper assembly is spaced apart.

[0014] According to another aspect of the present application, there is also provided a sample spotting device. The sample spotting device comprises any one of the hopper devices as described above.

[0015] The hopper device provided by the embodiment of the present application has the advantages that the upper feeding detection assembly is located at the side of the storage cavity and is configured to obliquely detect the non-transparent top surface of the top layer material at the upper limit position towards the opening. The detection light sent by the upper feeding detection assembly cannot pass through the non-transparent top surface of the top layer material, and thus the detection light can be reflected back to the upper feeding detection assembly. In this way, the upper feeding detection assembly can accurately detect the top layer material at the upper limit position, and the top layer material can be accurately stopped at the upper limit position, so that the top layer material can be smoothly fed to a subsequent station by a carrying device such as a mechanical hand. Therefore, the hopper device has high reliability, and the user has a good use experience.

[0016] A series of simplified forms are introduced in the utility model content, which will be further described in detail in the specific embodiment part. The utility model content part does not mean trying to limit the key features and necessary technical features of the claimed technical solution, and more does not mean trying to determine the protection scope of the claimed technical solution.

[0017] The advantages and features of the present application will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The following drawings of the present application are hereby incorporated as part of the present application for understanding the present application. The embodiments of the present application and the description thereof shown in the drawings are used to explain the principles of the present application. In the drawings,

[0019] Figure 1 It is a perspective view of a hopper device according to an exemplary embodiment of the present application.

[0020] In the above drawings, the following reference signs are used:

[0021] 100, bin device; 110, base; 200, bin assembly; 201, storage cavity; 202, opening; 210, support plate; 220, limiting rod; 300, jacking assembly; 310, jacking drive; 400, feeding detection assembly; 410, detection bracket; 411, vertical section; 412, inclined section; 420, sensor; 500, material; 510, top layer material; 520, bottom layer material; 600, pressing assembly; 610, pressing drive; 620, pressing piece. DETAILED DESCRIPTION

[0022] In the following description, numerous specific details are provided in order to provide a thorough understanding of the present application. One of ordinary skill in the art will realize, however, that the application can be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order not to unnecessarily obscure the present application.

[0023] According to an aspect of the present application, a bin device is provided. The bin device can be used to stack materials for feeding. The bin device can be applied to any suitable device, including but not limited to a spotting device. Therefore, according to another aspect of the present application, a spotting device is also provided. The bin device and the spotting device of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] As shown in FIG. 1, the bin device 100 can include a bin assembly 200, a jacking assembly 300, a feeding detection assembly 400, and a controller. Figure 1

[0025] The bin assembly 200 can be provided with a storage cavity 201 and an opening 202. The storage cavity 201 can be used to stack materials 500. The maximum amount of materials 500 stacked in the storage cavity 201 can be arbitrary, for example, fifty, sixty, or seventy-two. The materials 500 can be stacked in a vertically upward direction, an obliquely upward direction, or any other suitable direction. The materials 500 include but are not limited to spotting plates. The opening 202 can be connected to the storage cavity 201.

[0026] The jacking assembly 300 can be used to jack the top layer material 510 in the materials 500 in the storage cavity 201 to an upper limit position. For example, the jacking assembly 300 can only jack the top layer material 510 each time, so that it can be moved to the upper limit position. Alternatively, the jacking assembly 300 can jack multiple or even all of the materials 500 each time, so that the top layer material 510 can be moved to the upper limit position. The structure of the jacking assembly 300 can be arbitrary, including but not limited to a motor jacking assembly, a pneumatic cylinder jacking assembly, or a hydraulic cylinder jacking assembly.

[0027] ​The upper material detection assembly 400 can be located at the side of the storage cavity 201. In some embodiments, the upper material detection assembly 400 can be located at the side of the hopper assembly 200. The upper material detection assembly 400 can be used to obliquely detect the non-transparent top surface of the top layer of material 510 located at the upper limit position towards the opening 202. The upper material detection assembly 400 can adopt various types of detection assemblies known in the art or that can appear in the future, including but not limited to laser sensor detection assemblies or infrared sensor detection assemblies. Taking the material 500 including a spotting plate as an example, the spotting plate can include a transparent main body at the bottom and a plating layer at the top of the transparent main body. The transparent main body can be made of glass or the like to facilitate photographing. The plating layer can include a silica gel plating layer or the like. The top surface of the plating layer can be a non-transparent top surface, which can facilitate the adhesion of spreading agents and spotting liquids and the like thereon.

[0028] The controller can be electrically connected to the jacking assembly 300 and the upper material detection assembly 400. When the upper material detection assembly 400 detects that the top layer of material 510 is at the upper limit position, the controller can be used to control the jacking assembly 300 to stop. The controller can be built from electronic elements such as timers, comparators, registers, digital logic circuits, or implemented using processor chips such as single-chip microcomputers, microprocessors, programmable logic controllers (PLC), digital signal processors (DSP), field programmable gate arrays (FPGA), programmable logic arrays (PLA), application-specific integrated circuits (ASIC), and their peripheral circuits.

[0029] In actual application of the hopper device 100, relevant personnel can stack the material 500 in the storage cavity 201 of the hopper assembly 200. Then, the jacking assembly 300 can jack the top layer of material 510 in the material 500 to the upper limit position. When the top layer of material 510 moves to the upper limit position, the upper material detection assembly 400 can obliquely send detection light downward, and the detection light can pass through the opening 202, so as to be reflected back to the upper material detection assembly 400 through the non-transparent top surface. In this way, the upper material detection assembly 400 can send a first electrical signal to the controller. The controller can receive the first electrical signal, so as to control the jacking assembly 300 to stop. In this way, the top layer of material 510 can be accurately stopped at the upper limit position. In embodiments in which the hopper device 100 is applied to a spotting device, the spotting device can further include a handling device such as a robot. The handling device can carry the top layer of material 510 located at the upper limit position out of the storage cavity 201 through the opening 202 or any other position, so as to be fed to a subsequent station for subsequent processing.

[0030] In summary, the material bin device 100 provided by the embodiment of the utility model, because the feeding detection assembly 400 is located at the side of the storage cavity 201 and is used for obliquely detecting the non-transparent top surface of the top layer material 510 at the upper limit position towards the opening 202, the detection light sent by the feeding detection assembly 400 cannot pass through the non-transparent top surface of the top layer material 510, and therefore the detection light can be reflected back to the feeding detection assembly 400. In this way, the feeding detection assembly 400 can accurately detect the top layer material 510 at the upper limit position, and the top layer material 510 can be accurately stopped at the upper limit position, so that the top layer material 510 can be smoothly fed to the subsequent station by the carrying device such as a mechanical hand. Therefore, the material bin device 100 has high reliability, and the user has a good use experience.

[0031] Exemplarily, the feeding detection assembly 400 can include a detection support 410 and a sensor 420. The sensor 420 can be arranged on the detection support 410 through a connecting member such as a screw. The detection support 410 can be used for fixing the sensor 420. The sensor 420 can be located at the side of the storage cavity 201. Exemplarily, the detection support 410 and the sensor 420 can be located at the side of the material bin assembly 200. The sensor 420 can obliquely detect the non-transparent top surface of the top layer material 510 at the upper limit position towards the opening 202. The controller can be electrically connected to the sensor 420. When the sensor 420 detects that the upper limit position has the top layer material 510, the controller can control the jacking assembly 300 to stop. Specifically, when the top layer material 510 moves to the upper limit position, the sensor 420 can obliquely send detection light downward, the detection light can pass through the opening 202, and therefore can be reflected back to the sensor 420 through the non-transparent top surface. In this way, the sensor 420 can send a first electric signal to the controller. The controller can receive the first electric signal, and therefore can control the jacking assembly 300 to stop. The sensor 420 includes but is not limited to a laser sensor or an infrared sensor. In this way, the structure of the feeding detection assembly 400 is relatively simple, and the manufacturing cost is low.

[0032] Exemplarily, the detection support 410 can include a vertical section 411 and an inclined section 412. The inclined section 412 can obliquely extend downward from the top of the vertical section 411. The vertical section 411 and the inclined section 412 can be formed into an integral piece through a machining process such as casting or bending, or be connected through a connecting member such as a screw. The sensor 420 can be arranged on the inclined section 412. In this way, the sensor 420 can more conveniently achieve oblique downward sending of detection light.

[0033] Exemplarily, the silo device 100 can further comprise a base 110 and a rotating disc. In the embodiment in which the detection support 410 comprises the vertical section 411 and the inclined section 412, the lower end of the vertical section 411 can be directly or indirectly fixed to the base 110. The base 110 can serve as the base of the silo device 100. The jacking assembly 300 and the feeding detection assembly 400 can be arranged on the base 110. The rotating disc can be arranged on the base 110. The silo assembly 200 can comprise a plurality of, for example, two, five or more, silo assemblies 200 arranged on the rotating disc. The rotating disc can be used to drive the plurality of silo assemblies 200 to rotate, so that the silo assemblies 200 can be rotated one by one to the feeding station. The jacking assembly 300 and the feeding detection assembly 400 can be located at the feeding station. The jacking assembly 300 can jack up the stacked material 500 in the storage cavity 201 of the silo assembly 200 at the feeding station, so as to jack up the top layer of material 510 to the upper limit position. When there is no material 500 in the storage cavity 201 of the silo assembly 200 at the feeding station, the rotating disc can drive the next silo assembly 200 to rotate to the feeding station, so as to continuously supply material. Due to the structure of the rotating disc, the overall structure of the silo device 100 is relatively compact, thereby saving space, and thus facilitating miniaturization.

[0034] Exemplarily, the silo assembly 200 can be arranged on the rotating disc in a detachable manner. In this way, the material 500 can be pre-stacked in the storage cavity 201 of the silo assembly 200, and then installed on the rotating disc. The silo assembly 200 can facilitate feeding. The rotating disc can be electrically connected to the controller. In this way, the controller can control the rotating disc to drive the silo assembly 200 to rotate.

[0035] Exemplarily, the silo assembly 200 can comprise a support plate 210 and a plurality of limiting rods 220. The number of limiting rods 220 can be two, three or more. The plurality of limiting rods 220 can respectively extend upward from the support plate 210. The support plate 210 and the plurality of limiting rods 220 can jointly form the storage cavity 201. The material 500 can be stacked on the support plate 210. The plurality of limiting rods 220 can limit the stacked material 500. The top ends of the plurality of limiting rods 220 can jointly form the opening 202. The structure of the silo assembly 200 is relatively simple, facilitating processing and manufacturing. The jacking assembly 300 can be used to penetrate the support plate 210, so as to jack up the material 500 in the storage cavity 201. In this way, the jacking assembly 300 can jack up all the material 500 in the storage cavity 201.

[0036] Exemplarily, the jacking assembly 300 can be located below the stock bin assembly 200. The jacking assembly 300 can include a jacking drive 310 and a jacking connector (not shown due to angle problem). The jacking connector can be connected to a driving end of the jacking drive 310. The jacking drive 310 can be used to jack up the storage cavity 201 of the stock bin assembly 200 through the jacking connector, so that the top layer of material 510 can be jacked up to the upper limit position. The jacking drive 310 includes but is not limited to a motor, a pneumatic cylinder or a hydraulic cylinder. In the embodiment in which the stock bin assembly 200 includes the support plate 210 and the plurality of limiting rods 220, the jacking connector can pass through the support plate 210, so that the material 500 in the storage cavity 201 can be jacked up. In this way, the structure of the jacking assembly 300 is relatively simple, and the manufacturing cost is low.

[0037] Exemplarily, the stock bin device 100 can further include a jacking detection assembly. The jacking detection assembly can be electrically connected to the controller. The jacking detection assembly can be located to the side of the storage cavity 201 of the stock bin assembly 200. The jacking detection assembly can be used to detect the jacking connector. When the jacking detection assembly detects the jacking connector, the bottom layer of material 520 in the storage cavity 201 is located at the upper limit position. The jacking detection assembly can send a second electrical signal to the controller. The controller can receive the second electrical signal, so that the jacking assembly 300 can be controlled to stop. In this way, the jacking assembly 300 can be prevented from continuing to jack up, so that the waste of energy consumption can be avoided. The jacking detection assembly can adopt various types of detection assemblies known in the art or possibly appearing in the future, including but not limited to a laser sensor detection assembly or an infrared sensor detection assembly.

[0038] Exemplarily, the bin device 100 can further comprise a material detecting assembly. The material detecting assembly can be electrically connected to the controller. The material detecting assembly can be located aside the storage cavity 201 of the bin assembly 200. The material detecting assembly can be used to tilt upwardly detect the material 500 in the storage cavity 201. When the material detecting assembly detects that there is no material 500 in the storage cavity 201, the controller can control the jacking assembly 300 to stop. When there is material 500 in the storage cavity 201, the material detecting assembly can tilt upwardly send a detecting light, which can be reflected back to the material detecting assembly by the non-transparent top surface of the material 500. Conversely, when there is no material 500 in the storage cavity 201, the material detecting assembly cannot receive the detecting light it sends, and can then send a third electrical signal to the controller. The controller can receive the third electrical signal, and thus can control the jacking assembly 300 to stop. In this way, once there is no material 500 in the storage cavity 201 of the bin assembly 200 due to misoperation or the like, the jacking assembly 300 cannot be jacked. In this way, the function of error prevention can be achieved, and the waste of energy consumption can be avoided. Moreover, referring to the material feeding detecting assembly 400, the material detecting assembly can tilt upwardly detect the material 500 in the storage cavity 201, and thus the detecting light can be avoided from penetrating, and thus the success rate of detection of the material detecting assembly is higher. The material detecting assembly can adopt various types of detecting assemblies known in the art or possibly appearing in the future, including but not limited to a laser sensor detecting assembly or an infrared sensor detecting assembly.

[0039] Exemplarily, the bin device 100 can further comprise a pressing assembly 600. The pressing assembly 600 can press the bin assembly 200. In this way, in the process of jacking the material 500 by the jacking assembly 300, the pressing assembly 600 can avoid the bin assembly 200 from being driven due to friction or the like. In some embodiments, the pressing assembly 600 can comprise a pressing driving member 610 and a pressing member 620. The pressing member 620 can be connected to the driving end of the pressing driving member 610. The pressing driving member 610 can be used to drive the pressing member 620 to move between a pressing position and a releasing position. The movement can include but is not limited to translation or rotation. When the pressing member 620 is located at the pressing position, the pressing member 620 can abut against the bin assembly 200. In this way, the pressing member 620 can press the bin assembly 200 downwardly. In the embodiments in which the bin assembly 200 comprises the support plate 210 and the plurality of limiting rods 220, the pressing member 620 can press the support plate 210 downwardly. When the pressing member 620 is located at the releasing position, the pressing member 620 can be spaced apart from the bin assembly 200, and thus the bin assembly 200 can be conveniently disassembled.

[0040] In the description of the utility model, it is understood that the orientation words such as "front", "rear", "upper", "lower", "left", "right", "transverse", "vertical", "perpendicular", "horizontal" and "top", "bottom" and the like indicated orientation or positional relationship is usually based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore, it can not be understood as the limitation of the protection scope of the utility model;The orientation words "inner", "outer" refer to the inner and outer of the contour of each component.

[0041] For the convenience of description, regional relative terms such as "on", "above", "upper surface", "upper" and the like can be used here to describe the regional position relationship of one or more components or features shown in the drawing with other components or features. It should be understood that the regional relative terms not only include the orientation of the components described in the drawing, but also include different orientations in use or operation. For example, if the components in the drawing are inverted as a whole, the components "above" or "on" other components or features will include the case of "below" or "under" other components or structures. Thus, the exemplary term "above" can include both "above" and "below". In addition, these components or features can also be positioned at other different angles (for example, rotated by 90 degrees or other angles), and all these cases are intended to be included herein.

[0042] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, it means that the features, steps, operations, components, assemblies and / or their combinations are present.

[0043] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0044] The utility model discloses has been through the above embodiment has been explained, but should understand, the above embodiment is only for the purpose of example and illustration, and is not intended to limit the utility model to the range of described embodiment. In addition, those skilled in the art can understand that the utility model is not limited to the above embodiment, and more kinds of variations and modifications can be made according to the teaching of the utility model, and the variations and modifications all fall within the range of the utility model claimed. The protection scope of the utility model is defined by the attached claims and its equivalent range.

Claims

1. A silo device, characterized in that, The device includes a hopper assembly, a lifting assembly, a feeding detection assembly, and a controller. The hopper assembly has an opening and a storage cavity for stacking materials. The lifting assembly is used to lift the top layer of material in the storage cavity to an upper limit position. The feeding detection assembly is located to the side of the storage cavity and its detection direction is angled to the stacking direction of the materials, so that the feeding detection assembly is tilted toward the opening to detect the non-transparent top surface of the top layer of material at the upper limit position. The controller is electrically connected to the lifting assembly and the feeding detection assembly and is used to control the lifting assembly to stop when the feeding detection assembly detects the presence of the top layer of material at the upper limit position.

2. The silo device as described in claim 1, characterized in that, The feeding detection assembly includes a detection bracket and a sensor mounted on the detection bracket. The sensor is located on the side of the storage cavity and is used to tilt toward the opening to detect the non-transparent top surface of the top layer material located at the upper limit position. The controller is electrically connected to the sensor and is used to control the lifting assembly to stop when the sensor detects the presence of the top layer material at the upper limit position.

3. The silo device as described in claim 2, characterized in that, The detection bracket includes a vertical section and an inclined section, the inclined section extending downward at an angle from the top of the vertical section, and the sensor is disposed on the inclined section.

4. The silo device as described in claim 1, characterized in that, The hopper device also includes a base and a turntable disposed on the base. The lifting component and the feeding detection component are both disposed on the base. The hopper component includes multiple components disposed on the turntable. The turntable is used to drive the multiple hopper components to rotate one by one to the feeding station. The lifting component is used to lift the top layer material located at the feeding station to the upper limit position.

5. The silo device as described in claim 1, characterized in that, The hopper assembly includes a support plate and a plurality of limiting rods extending upward from the support plate. The support plate and the plurality of limiting rods together form the storage cavity, and the top ends of the plurality of limiting rods together form the opening. The lifting assembly is used to pass through the support plate to lift the material in the storage cavity.

6. The silo device as described in claim 1, characterized in that, The lifting assembly is located below the hopper assembly. The lifting assembly includes a lifting drive and a lifting connector connected to the drive end of the lifting drive. The lifting drive is used to lift the top layer material to the upper limit position through the lifting connector.

7. The silo device as described in claim 6, characterized in that, The hopper device also includes a lifting detection component electrically connected to the controller. The lifting detection component is located on the side of the storage chamber. When the lifting detection component detects the lifting connector, the bottom material in the storage chamber is located at the upper limit position. The controller is used to control the lifting drive to stop.

8. The silo device as described in claim 1, characterized in that, The hopper device also includes a material detection component electrically connected to the controller. The material detection component is located on the side of the storage chamber and is used to detect the material in the storage chamber at an upward tilt. The controller is used to control the lifting component to stop when the material detection component detects that there is no material in the storage chamber.

9. The silo device as described in claim 1, characterized in that, The hopper device further includes a pressing assembly, which includes a pressing drive and a pressing member connected to the driving end of the pressing drive. The pressing drive is used to drive the pressing member to move between a pressing position that presses down on the hopper assembly and a release position that is spaced apart from the hopper assembly.

10. A sampling device, characterized in that, Includes the silo device as described in any one of claims 1-9.

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