Stock bin sampling device

Abstract

The utility model discloses a stock bin sampling device which comprises a fixing frame, a sampling device, a sampling device and a control device, the fixing frame is suitable for being installed on the outer side of a stock bin, and the fixing frame is provided with an embedded pipe penetrating through the side wall of the stock bin; the sampling piece is movably mounted on the fixing frame, penetrates through the embedded pipe and extends into the stock bin, and a sampling groove for collecting a sample is formed in the sampling piece; the sample pressing and returning assembly is installed on the fixing frame, the sample pressing and returning assembly comprises a sample pressing piece and a sample returning piece, the sample pressing piece is used for pressing a sample in the sampling groove, and the sample returning piece is used for opening the sampling groove so that the sampling groove can be communicated with a pipeline of a next procedure. Therefore, the detection efficiency can be improved, the detection period can be shortened, man-made interference can be reduced, and the detection accuracy can be improved.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a bin sampling device. Background Art

[0002] In industrial production such as petroleum, metallurgy, and prospecting, it is very necessary to detect the chemical composition content of powder materials stored in bins, which is an important process in production operations. In related technologies, the inspection method usually adopts the method of manual sampling, with low work efficiency, easy to be interfered by humans, which may affect the detection accuracy, and after manual sampling, it is also necessary to send it to the laboratory for manual sample preparation, with a cumbersome process, resulting in too long an inspection cycle, and there is room for improvement. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a bin sampling device, which has sampling function, sample preparation function and sample return function, with high detection efficiency, short detection cycle, less human interference and high detection accuracy.

[0004] The bin sampling device according to an embodiment of the utility model includes: a fixed frame, which is adapted to be installed outside the bin, and the fixed frame is provided with a buried pipe penetrating through the side wall of the bin; a sampling member, which is movably installed on the fixed frame and penetrates through the buried pipe and extends into the bin, and the sampling member is provided with a sampling groove for collecting samples; a pressing and sample returning assembly, which is installed on the fixed frame, and the pressing and sample returning assembly includes a pressing member and a sample returning member, the pressing member is used for pressing the sample in the sampling groove, and the sample returning member is used for opening the sampling groove to communicate the sampling groove with the pipeline of the next process.

[0005] The bin sampling device according to an embodiment of the utility model can press the sample in the sampling groove by setting the pressing member, and can open the sampling groove by setting the sample returning member to introduce the sample into the pipeline of the next process, so that the bin sampling device has sampling function, sample preparation function and sample return function, which is beneficial to improving the detection efficiency, shortening the detection cycle, reducing human interference and improving the detection accuracy.

[0006] The bin sampling device according to some embodiments of the utility model, the pressing and sample returning assembly further includes a sample returning pipe, and the sample returning pipe is used for communicating the sampling groove with the pipeline of the next process when the sampling groove is opened.

[0007] The bin sampling device according to some embodiments of the utility model, the sample returning pipe is arranged below the sampling member, a movable top block is installed at the bottom of the sampling groove, and the sample returning member is provided with a pushing part, and the pushing part is used for selectively pushing the movable top block to open the sampling groove.

[0008] For the silo sampling device according to some embodiments of the present utility model, the sampling member is further provided with an elastic member, the elastic member is connected to the movable top block, and the elastic member is configured to apply a pre-tightening force to the movable top block to close the sampling groove.

[0009] For the silo sampling device according to some embodiments of the present utility model, the sampling groove is configured such that the opposite side walls approach each other in the vertical direction.

[0010] For the silo sampling device according to some embodiments of the present utility model, the fixing frame further includes a first partition and a second partition. The first partition and the second partition are respectively arranged on both sides of the sample-returning pressing assembly along the moving direction of the sampling member and are adapted to define a receiving space with the sample-returning pressing assembly. The receiving space is communicated with the sample-returning pipe and is used to accommodate the sampling member. The sample-returning pressing assembly further includes a purging member, and the purging member is used to introduce a purging air flow into the receiving space. The purging air flow is adapted to blow the sample in the sampling groove into the sample-returning pipe when the sampling groove is communicated with the sample-returning pipe.

[0011] For the silo sampling device according to some embodiments of the present utility model, the first partition and the second partition are respectively provided with mounting holes for passing through the sampling member. A guiding groove is formed on the outer peripheral wall of the sampling member, and a guiding protrusion is provided on the inner wall of the mounting hole. The guiding protrusion is used for guiding cooperation with the guiding groove.

[0012] For the silo sampling device according to some embodiments of the present utility model, the guiding grooves are respectively provided on opposite sides of the sampling member.

[0013] For the silo sampling device according to some embodiments of the present utility model, it further includes: a detection assembly, which is installed on the fixing frame and is arranged opposite to the sampling member, and the detection assembly is used to irradiate a detection light beam towards the sampling groove.

[0014] For the silo sampling device according to some embodiments of the present utility model, the fixing frame further includes a discharge pipe, the discharge pipe penetrates through the side wall of the silo and is connected to the embedded pipe, and the discharge pipe is configured to selectively communicate the embedded pipe and the pipeline of the next process.

[0015] For the silo sampling device according to some embodiments of the present utility model, it further includes: a driving assembly, the driving assembly is installed on the fixing frame, the driving assembly includes a driving gear, the sampling member is provided with a rack portion, and the driving assembly drives the sampling member to reciprocate by meshing the driving gear with the rack portion.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a schematic structural view of a silo sampling device according to an embodiment of the present utility model;

[0019] Figure 2 is a schematic installation view of a silo sampling device according to an embodiment of the present utility model;

[0020] Figure 3 is a schematic cooperation view of a compressing and returning sample assembly and a sampling member according to an embodiment of the present utility model;

[0021] Figure 4 is a sectional view of a sampling member according to an embodiment of the present utility model.

[0022] Reference Signs:

[0023] Silo sampling device 100, silo 200,

[0024] Fixed frame 1, embedded pipe 11, first partition 12, second partition 13, third partition 14, support beam 15, support plate 16, discharge pipe 17,

[0025] Sampling member 2, sampling groove 21, movable top block 22, elastic member 23, guide groove 24, rack portion 25,

[0026] Compressing and returning sample assembly 3, pressing sample member 31, first driving member 311, pressing block 312, returning sample member 32, second driving member 321, pushing portion 322, returning sample pipe 33, mounting frame 34, purging nozzle 341, driving assembly 4. Detailed Description of the Embodiments

[0027] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0028] Next, with reference to the accompanying drawings, a silo sampling device 100 according to an embodiment of the present utility model will be described. The silo sampling device 100 is applied to a silo 200 for storing powder materials.

[0029] As Figures 1 - 4As shown in the figure, the silo sampling device 100 according to an embodiment of the present utility model includes: a fixing frame 1, a sampling member 2, and a sample pressing and returning assembly 3. The fixing frame 1 is adapted to be installed on the outer side of the silo 200, and the fixing frame 1 is provided with a pre-buried pipe 11 penetrating through the side wall of the silo 200; the sampling member 2 is movably installed on the fixing frame 1 and extends through the pre-buried pipe 11 into the silo 200, and the sampling member 2 is provided with a sampling groove 21 for collecting samples; the sample pressing and returning assembly 3 is installed on the fixing frame 1, and the sample pressing and returning assembly 3 includes a sample pressing member 31 and a sample returning member 32. The sample pressing member 31 is used for pressing the sample in the sampling groove 21, and the sample returning member 32 is used for opening the sampling groove 21 to communicate the sampling groove 21 with the pipeline of the next process.

[0030] Thus, the silo sampling device 100 has the functions of sampling, sample preparation, and sample returning, which is beneficial to improving the detection efficiency, shortening the detection cycle, reducing human interference, and improving the detection accuracy.

[0031] For example, as shown in Figures 1 - 3 the figure, the silo 200 is provided with a storage cavity, and powder materials are stored in the storage cavity. The silo sampling device 100 includes a fixing frame 1, and the fixing frame 1 is provided with a support plate 16. The support plate 16 is adapted to be attached to the outer peripheral wall of the silo 200 to install the fixing frame 1 on the outer side of the silo 200. Of course, the fixing frame 1 can also be fixed to other structures outside the silo 200, such as a mounting base, etc., and the present utility model does not limit this. The fixing frame 1 is further provided with a pre-buried pipe 11, and the pre-buried pipe 11 penetrates through the side wall of the silo 200. The pre-buried pipe 11 forms a sampling channel for communicating the storage cavity of the silo 200 with the outside of the silo 200. It should be noted that the pre-buried pipe 11 is arranged to extend obliquely upward from inside to outside to prevent the powder materials from leaking out of the sampling channel to the outside of the silo 200.

[0032] Among them, the silo sampling device 100 further includes a sampling member 2 and a sample pressing and returning assembly 3. The sampling member 2 is configured as a rod shape, and the sampling member 2 is axially movably installed on the fixing frame 1, and the sampling member 2 is arranged parallel to the pre-buried pipe 11. The sampling member 2 can penetrate through the sampling channel of the pre-buried pipe 11 from the outside of the silo 200 to extend into the storage cavity of the silo 200. The sampling member 2 is provided with an upwardly open sampling groove 21 for accommodating the powder materials in the storage cavity so that the sampling member 2 can collect samples.

[0033] The sample compression and return assembly 3 is mounted on the fixed frame 1 and is positioned opposite the sampling member 2. The sample compression and return assembly 3 includes a sample compression member 31 and a sample return member 32. The sample compression member 31 is mounted above the sampling member 2 and includes a first driver 311 and a pressure block 312. The first driver 311 is dynamically connected to the pressure block 312 and is used to drive the pressure block 312 to compress the sample within the sampling trough 21 to achieve the sample preparation function. The sample return member 32 is used to open the bottom wall or side wall of the sampling trough 21, allowing the sampling trough 21 to connect with the pipeline of the next process, allowing the sample within the sampling trough 21 to flow into the pipeline of the next process, thereby achieving the sample return function.

[0034] In the specific working process, the sampling member 2 is first driven to move inward along the sampling channel to the storage chamber of the silo 200, and the sampling member 2 can collect samples through the sampling slot 21; after the sampling is completed, the sampling member 2 can be driven to move outward to the sample preparation position, the sampling slot 21 is opposite to the sample pressing member 31, and the sample pressing member 31 can press the sample in the sampling slot 21 to complete the sample preparation. At this time, the sampling member 2 can be driven to continue to move outward, and the sampling slot 21 can be moved to the detection position for detection (which can be automatic detection or manual detection, and the present invention does not limit this); after the detection is completed, the sampling member 2 can be driven to move inward to the sample return position, the sampling slot 21 is opposite to the sample return member 32, and the sample return member 32 can open the sampling slot 21 so that the sampling slot 21 is connected to the pipeline of the next process, and the sample in the sampling slot 21 can flow into the pipeline of the next process. In this way, the detection efficiency can be improved, the detection cycle can be shortened, and human interference can be reduced, thereby improving the accuracy of the detection.

[0035] It should be noted that the sample preparation position and the sample return position can be set to coincide with each other, or they can be set to stagger with each other, and the present invention does not impose any restrictions on this.

[0036] According to the silo sampling device 100 of the embodiment of the present invention, the sample in the sampling slot 21 can be compressed by providing a sample pressing piece 31, and the sample returning piece 32 can be provided to open the sampling slot 21 to pass the sample into the pipeline of the next process, so that the silo sampling device 100 has the sampling function, the sample preparation function and the sample returning function, which is beneficial to improving the detection efficiency, shortening the detection cycle, reducing human interference, and improving the accuracy of the detection.

[0037] In some embodiments of the present invention, the sample pressing assembly 3 further includes a sample returning tube 33 , which is used to connect the sampling tank 21 with the pipeline of the next process when the sampling tank 21 is opened.

[0038] For example, refer to Figure 3As shown, the sample return assembly 3 also includes a sample return tube 33, one end of which is arranged opposite to the sampling slot 21 and the other end is connected to the pipeline of the next process. When the sampling slot 21 is opened, the sample return tube 33 can connect the sampling slot 21 with the pipeline of the next process. The sample in the sampling slot 21 can enter the sample return tube 33 and flow along the sample return tube 33 to the pipeline of the next process, thereby realizing the sample return function.

[0039] Through the above arrangement, the reliability of the sampling process can be guaranteed, and the arrangement position of the sampling slot 21 can be made more flexible, thereby improving the design rationality of the silo sampling device 100.

[0040] In some embodiments of the present invention, the sample return tube 33 is arranged below the sampling piece 2, a movable top block 22 is installed at the bottom of the sampling slot 21, and the sample return piece 32 is provided with a pushing part 322, which is used to selectively push the movable top block 22 to open the sampling slot 21.

[0041] For example, refer to Figures 3 - 4 As shown, the sample return tube 33 can be arranged below the sampling member 2, and the sampling member 2 is provided with a movable top block 22, which can be movably mounted on the bottom of the sampling slot 21. At the same time, the sample return member 32 can be mounted on the sampling member 2 along the width direction (i.e. Figure 4 On one side of the sampling member 32 (left and right directions), the sampling member 32 also includes a second driving member 321 and a pushing portion 322. The pushing portion 322 can be constructed as a pushing claw. The second driving member 321 is dynamically connected to the pushing portion 322. The pushing portion 322 is arranged opposite to the movable top block 22. The second driving member 321 is used to drive the pushing portion 322 to move toward or away from the sampling member 2, so that the pushing portion 322 can selectively push the movable top block 22 to open the sampling slot 21.

[0042] Specifically, when the detection is completed, the sampling piece 2 can be driven to move to the sample returning position, and the second driving piece 321 can drive the pushing part 322 to move in the direction close to the sampling piece 2. The pushing part 322 is against the movable top block 22 to push the movable top block 22 to move. The movable top block 22 is staggered with the sampling slot 21, and the sampling slot 21 opens downward and is connected to the sample returning tube 33. The sample in the sampling slot 21 can fall downward into the sample returning tube 33 under the action of gravity and flow into the pipeline of the next process through the sample returning tube 33; when the sample returning is completed, the second driving piece 321 can drive the pushing part 322 to move in the direction away from the sampling piece 2, and the movable top block 22 is reset to close the sampling slot 21 so that the sampling piece 2 can sample again.

[0043] Through the above arrangement, the structural complexity of the sampling member 2 can be simplified, which is conducive to reducing the difficulty of processing, and is conducive to improving the sample return efficiency, thereby enhancing the practicality of the silo sampling device 100.

[0044] In some embodiments of the present utility model, the sampling member 2 is further provided with an elastic member 23. The elastic member 23 is connected to the movable top block 22, and the elastic member 23 is configured to apply a pre-tightening force to the movable top block 22 to close the sampling groove 21.

[0045] For example, referring to Figure 4 As shown, the sampling member 2 is further provided with an elastic member 23. The elastic member 23 is configured as a structure such as a spring. The elastic member 23 is installed on the side of the movable top block 22 away from the sample return member 32 and is connected to the movable top block 22. The elastic member 23 is configured to apply a pre-tightening force to the movable top block 22 to close the sampling groove 21, that is, the elastic member 23 can apply a pre-tightening force to the movable top block 22 towards the sample return member 32. In this way, after the sample return is completed, the elastic member 23 can drive the movable top block 22 to reset to close the sampling groove 21. Thereby, the reset reliability of the movable top block 22 can be improved, and the reliability of the bin sampling device 100 is improved.

[0046] It should be noted that the movable top block 22 can also be set to be inclined upward in the direction away from the sample return member 32. In this way, after the sample return is completed, the movable top block 22 can be self-reset under the action of gravity. Thereby, it is beneficial to reduce costs.

[0047] In some embodiments of the present utility model, as Figure 4 shown, the sampling groove 21 can be configured such that the relative side walls approach each other in the up-down direction. Through the above setting, the side walls of the sampling groove 21 can guide the sample, improving the efficiency of the sample falling into the sample return pipe 33, facilitating the reduction of the sample return time, and being beneficial to reducing the sample residue in the sampling groove 21, which is beneficial to improving the detection accuracy.

[0048] In some embodiments of the present utility model, the fixed frame 1 further includes a first partition 12 and a second partition 13. The first partition 12 and the second partition 13 are respectively arranged on both sides of the sample pressing and returning assembly 3 along the moving direction of the sampling member 2 and are adapted to define a receiving space with the sample pressing and returning assembly 3. The receiving space is communicated with the sample return pipe 33 and is used to accommodate the sampling member 2. The sample pressing and returning assembly 3 further includes a purging member, and the purging member is used to introduce a purging air flow into the receiving space. The purging air flow is adapted to blow the sample in the sampling groove 21 into the sample return pipe 33 when the sampling groove 21 is communicated with the sample return pipe 33.

[0049] For example, referring to Figures 2 - 3As shown, the sample-returning component 3 further includes a mounting bracket 34. The mounting bracket 34 forms a cavity with both ends open. The sampling member 2 is adapted to pass through the cavity of the mounting bracket 34, and the sample-pressing member 31, the sample-returning member 32, and the sample-returning tube 33 are all mounted on the mounting bracket 34. Among them, the fixing bracket 1 includes a support beam 15, a first partition 12, and a second partition 13. The first partition 12 and the second partition 13 are arranged at intervals and connected by the support beam 15. The first partition 12 and the second partition 13 are respectively located on both sides of the mounting bracket 34 along the movement direction of the sampling member 2. The first partition 12, the second partition 13, and the mounting bracket 34 are adapted to define a receiving space at the cavity. The receiving space is communicated with the sample-returning tube 33, and the sampling member 2 passes through the receiving space. The sample-pressing and returning component 3 further includes a purging member. A purging air nozzle 341 is provided on the side wall of the mounting bracket 34. The purging member penetrates through the purging air nozzle 341 from the outside of the mounting bracket 34 and extends into the receiving space. When the sampling groove 21 is communicated with the sample-returning tube 33, the purging member can introduce a purging air flow into the receiving space. Under the action of the pressure difference, the purging air flow can blow the sample in the sampling groove 21 into the sample-returning tube 33.

[0050] It should be emphasized that when the sample-returning tube 33 is located below the sampling member 2, the sample in the sampling groove 21 can flow into the sample-returning tube 33 under the dual action of gravity and the purging air flow.

[0051] Through the above settings, the sample-returning efficiency can be improved, the sample-returning time can be reduced, and the sample residue in the sampling groove 21 can be eliminated, which is beneficial to improving the detection accuracy of the sample and improving the reliability of the silo sampling device 100.

[0052] In some embodiments of the present invention, the first partition 12 and the second partition 13 are respectively provided with mounting holes for passing through the sampling member 2. A guiding groove 24 is formed on the outer peripheral wall of the sampling member 2, and guiding protrusions are provided on the inner wall of the mounting holes for guiding cooperation with the guiding groove 24.

[0053] For example, with reference to Figure 1 and Figure 4 As shown, mounting holes are respectively formed on the first partition 12 and the second partition 13. The mounting holes of the first partition 12 and the second partition 13 are arranged opposite to each other along the movement direction of the sampling member 2. The sampling member 2 can pass through the mounting holes. Among them, a guiding groove 24 can be formed on the outer peripheral wall of the sampling member 2, and guiding protrusions can be formed on the inner wall of the mounting holes. The guiding cooperation is achieved by extending the guiding protrusions into the guiding groove 24. Thus, the movement stability of the sampling member 2 can be improved, and the reliability of the silo sampling device 100 is improved.

[0054] Of course, guiding protrusions can also be formed on the outer peripheral wall of the sampling member 2, and guiding grooves 24 can be formed on the inner wall of the mounting holes. The present invention does not limit this.

[0055] Further, as Figure 4 shown, guide grooves 24 are respectively provided on opposite sides of the sampling member 2. Specifically, the cross-sectional shape of the sampling member 2 can be configured as a rectangle, and guide grooves 24 can be respectively provided on opposite side walls of the sampling member 2 in the width direction. At the same time, guide protrusions can be respectively formed at opposite side walls of each mounting hole, and the two guide grooves 24 can be in one-to-one cooperation with the two guide protrusions of the same mounting hole. Of course, the cross-sectional shape of the sampling member 2 can also be configured as a circle, an ellipse or other shapes, and the present utility model does not limit this. Thereby, it is beneficial to improve the movement stability of the guiding member.

[0056] In some embodiments of the present utility model, the bin sampling device 100 of the embodiments of the present utility model further includes: a detection component, which is installed on the fixed frame 1 and is arranged opposite to the sampling member 2, and the detection component is used for irradiating a detection beam towards the sampling slot 21.

[0057] For example, with reference to Figure 2 shown, the bin sampling device 100 further includes a detection component, which is installed on the fixed frame 1. The fixed frame 1 includes a second partition plate 13 and a third partition plate 14. The second partition plate 13 and the third partition plate 14 are arranged at intervals and define a detection space. The detection component is installed in the detection space and is arranged opposite to the sampling member 2. When the sampling member 2 moves to the detection position, the detection component can irradiate a detection beam into the sampling slot 21. At this time, the spectrum of the sample can be obtained to detect the chemical composition of the sample. Through the above settings, the bin sampling device 100 has the function of sample detection, improving the practicability of the bin sampling device 100.

[0058] In some embodiments of the present utility model, the fixed frame 1 further includes a discharge pipe 17, which penetrates through the side wall of the bin 200 and is connected to the embedded pipe 11. The discharge pipe 17 is configured to selectively connect the embedded pipe 11 and the pipeline of the next process.

[0059] For example, with reference to Figure 2As shown, the fixing frame 1 further includes a discharge pipe 17. The discharge pipe 17 penetrates through the side wall of the silo 200, and the discharge pipe 17 is configured to be arranged obliquely upward in the direction from outside to inside. The upper end of the discharge pipe 17 is connected to the embedded pipe 11 and the lower end is connected to the pipeline of the next process. The discharge pipe 17 is configured to selectively connect the embedded pipe 11 and the pipeline of the next process. Specifically, before the sampling piece 2 samples, the discharge pipe 17 can be opened to connect the embedded pipe 11 and the pipeline of the next process, so that the residual powder material in the embedded pipe 11 can be discharged into the pipeline of the next process to avoid the residual powder material contaminating the sample. After the discharge is completed, the discharge pipe 17 can be closed to prevent the powder material from flowing directly into the pipeline of the next process through the discharge pipe 17. Thus, the accuracy of sampling can be improved, which is beneficial to improving the reliability of the silo sampling device 100.

[0060] In some embodiments of the present invention, the silo sampling device 100 according to the embodiments of the present invention further includes: a driving assembly 4. The driving assembly 4 is installed on the fixing frame 1. The driving assembly 4 includes a driving gear. The sampling piece 2 is provided with a rack portion 25. The driving assembly 4 drives the sampling piece 2 to reciprocate by meshing the driving gear with the rack portion 25.

[0061] For example, as shown in Figure 2 As shown, the silo sampling device 100 further includes: a driving assembly 4. The driving assembly 4 is installed on the fixing frame 1. The driving assembly 4 includes a driving member and a driving gear. The driving member can be set as a servo motor. The output end of the driving member is connected to the driving gear. At the same time, a rack portion 25 can be provided on the lower side of the sampling piece 2. The rack portion 25 extends along the moving direction of the sampling piece 2. The driving gear meshes with the rack portion 25 so that the driving member can drive the sampling piece 2 to reciprocate. It should be noted that a speed reducer can also be provided between the output end of the driving member and the driving gear to improve the adjustment accuracy of the driving assembly 4. Through the above settings, the movement accuracy of the sampling piece 2 can be improved, and the reliability of the silo sampling device 100 is improved.

[0062] In some embodiments of the present invention, an induction sheet can be provided on the outer side wall of the sampling piece 2, and an induction device is installed on the fixing frame 1. The induction device is used to sense the induction sheet to monitor the position of the sampling piece 2. Through the above settings, the movement accuracy of the sampling piece 2 can be improved, and when the driving assembly 4 fails and causes the sampling piece 2 to exceed the stroke, timely shutdown can be realized to avoid damage to the sampling piece 2, improving the reliability of the silo sampling device 100.

[0063] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0064] In the description of the present utility model, the "first feature" and the "second feature" may include one or more of such features.

[0065] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0066] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0067] In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0068] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0069] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A silo sampling device (100), characterized in that, Comprising: A fixing frame (1), the fixing frame (1) being adapted to be installed on the outer side of a silo (200), and the fixing frame (1) being provided with a pre-buried pipe (11) passing through the side wall of the silo (200); A sampling member (2), the sampling member (2) being movably installed on the fixing frame (1) and extending through the pre-buried pipe (11) into the silo (200), the sampling member (2) being provided with a sampling groove (21) for collecting samples; A pressing and returning sample assembly (3), the pressing and returning sample assembly (3) being installed on the fixing frame (1), the pressing and returning sample assembly (3) including a sample pressing member (31) and a sample returning member (32), the sample pressing member (31) being used for pressing the samples in the sampling groove (21), and the sample returning member (32) being used for opening the sampling groove (21) to communicate the sampling groove (21) with a pipeline of the next process.

2. The silo sampling device (100) according to claim 1, characterized in that, The pressing and returning sample assembly (3) further includes a sample returning pipe (33), the sample returning pipe (33) being used for communicating the sampling groove (21) with the pipeline of the next process when the sampling groove (21) is opened.

3. The silo sampling device (100) according to claim 2, wherein, The sample returning pipe (33) is arranged below the sampling member (2), a movable top block (22) is installed at the bottom of the sampling groove (21), and the sample returning member (32) is provided with a pushing portion (322), the pushing portion (322) being used for selectively pushing the movable top block (22) to open the sampling groove (21).

4. The silo sampling device (100) according to claim 3, characterized in that, The sampling member (2) is further provided with an elastic member (23), the elastic member (23) being connected to the movable top block (22), and the elastic member (23) being configured to apply a pre-tightening force for closing the sampling groove (21) to the movable top block (22).

5. The silo sampling device (100) according to claim 3, characterized in that, The sampling groove (21) is configured such that its opposite side walls approach each other in the vertical direction from top to bottom.

6. The silo sampling device (100) according to claim 2, wherein, The fixing frame (1) further includes a first partition plate (12) and a second partition plate (13), the first partition plate (12) and the second partition plate (13) being respectively arranged on both sides of the pressing and returning sample assembly (3) along the moving direction of the sampling member (2) and being adapted to define a receiving space with the pressing and returning sample assembly (3), the receiving space being communicated with the sample returning pipe (33) and being used for receiving the sampling member (2), the pressing and returning sample assembly (3) further including a purging member, the purging member being used for introducing a purging air flow into the receiving space, and the purging air flow being adapted to blow the samples in the sampling groove (21) into the sample returning pipe (33) when the sampling groove (21) is communicated with the sample returning pipe (33).

7. The silo sampling device (100) according to claim 6, characterized in that, The first partition plate (12) and the second partition plate (13) are respectively provided with mounting holes, the mounting holes being used for passing through the sampling member (2), a guiding groove (24) is formed on the outer peripheral wall of the sampling member (2), and guiding protrusions are provided on the inner wall of the mounting holes, the guiding protrusions being used for guiding cooperation with the guiding groove (24).

8. The silo sampling device (100) according to claim 7, characterized in that, The guiding grooves (24) are respectively provided on opposite sides of the sampling member (2).

9. The silo sampling device (100) according to claim 1, characterized in that, Also comprising: The detection component is installed on the fixing bracket (1) and is arranged opposite to the sampling piece (2), and the detection component is used to irradiate a detection light beam towards the sampling groove (21).

10. The silo sampling device (100) according to claim 1, wherein, The fixing bracket (1) further includes a discharge pipe (17), the discharge pipe (17) penetrates through the side wall of the storage bin (200) and is connected to the embedded pipe (11), and the discharge pipe (17) is configured to selectively communicate the embedded pipe (11) and the pipeline of the next process.

11. The silo sampling device (100) according to any one of claims 1-10, characterized in that, It further includes: A driving component (4), the driving component (4) is installed on the fixing bracket (1), the driving component (4) includes a driving gear, the sampling piece (2) is provided with a rack portion (25), and the driving component (4) drives the sampling piece (2) to reciprocate by meshing the driving gear with the rack portion (25).

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