Deep sampling equipment for vertical silo

Abstract

The utility model provides deep sampling equipment for a vertical silo. The deep sampling equipment comprises a mounting plate, a vertical column and a sampling pipe, the mounting plate is connected with the top of the vertical silo; the stand column is arranged on the upper surface of the mounting plate and provided with a driving device, the output end of the driving device is fixedly connected with an eccentric wheel, the driving device drives the eccentric wheel to rotate, a connecting rod is hinged to the eccentric wheel, and the hinge point of the eccentric wheel and the connecting rod is eccentrically arranged relative to a driving shaft between the eccentric wheel and the driving device; a guide rail extending in the vertical direction is fixed to the mounting plate, a sliding block capable of sliding in the vertical direction is arranged in the guide rail in a sliding mode, a pipe pressing piece is detachably connected to the sliding block, and a through sampling opening corresponding to the pipe pressing piece in position in the vertical direction is formed in the mounting plate. The pressure of the inner pipe is reduced through outer pipe support, so that the device is deeper into the granary, and the sampling depth is convenient to control by sectional driving.

Description

TECHNICAL FIELD

[0001] The utility model relates to granary management, especially point to a kind of for vertical silo deep layer sampling equipment. BACKGROUND

[0002] Granary management refers to a series of activities for effective management and maintenance of grain storage facilities and the grain stored therein. The purpose is to ensure the quality and quantity of grain during storage, in order to ensure the quality of grain during storage, regular sampling inspection of grain in the grass is needed, the grain in the granary may differ in different positions due to storage conditions, time and other factors, and generally needs to be sampled at different parts of the granary.

[0003] Granary generally includes vertical silo, flat warehouse, shallow round warehouse and steel plate warehouse, among which vertical silo (also known as shallow round warehouse) is a structure for storing bulk materials, usually used to store grains, feed, cement, coal and other materials. This type of warehouse is designed as a straight cylindrical or square structure, which is relatively high in height, so that sampling needs to be taken deep into the vertical silo, and deep layer sampling equipment is generally needed for sampling.

[0004] The deep layer sampling equipment in the prior art generally includes a main rod and a negative pressure device, which is inserted into the interior of the granary, and then sampled at the corresponding position by the negative pressure device, but there are some technical problems. The vertical silo is relatively high in height, and the long main rod is difficult to transport to the top of the vertical silo. At the same time, the grain will form a certain bulk density during storage. With the increase of depth, the pressure of the upper grain on the lower grain also gradually increases, which makes it more and more difficult for the main rod to advance downward, and it is difficult to control the depth of the main rod into the granary, so that it is difficult to sample the main rod into the interior of the granary. UTILITY MODEL CONTENTS

[0005] In order to solve the problem of difficulty in advancing the main rod downward and difficulty in controlling the depth of the main rod into the granary in the background art, the utility model provides a deep layer sampling equipment for vertical silo.

[0006] The technical scheme of the utility model is: including mounting plate, stand and sampling pipe;

[0007] The mounting plate is used to connect with the top of the vertical silo;

[0008] The stand is arranged on the upper surface of the mounting plate, the stand is provided with a driving device, the output end of the driving device is fixedly connected with an eccentric wheel, the driving device drives the eccentric wheel to rotate, the eccentric wheel is hingedly connected with a connecting rod, and the hinging point of the eccentric wheel and the connecting rod is eccentrically arranged relative to the driving shaft between the eccentric wheel and the driving device;

[0009] The mounting plate is fixed with a guide rail extending in the up-down direction, a sliding block is slidably arranged in the guide rail and can slide in the up-down direction, a pressing pipe is detachably connected to the sliding block, the mounting plate is provided with a sampling port penetrating the position corresponding to the pressing pipe in the up-down direction, and the lower end of the connecting rod is hinged to the sliding block.

[0010] The sampling pipe comprises an outer pipe and an inner pipe, the inner pipe is sleeved in the outer pipe, the outer pipe comprises a plurality of outer pipe standard sections, adjacent outer pipe standard sections are detachably connected to form the outer pipe, the inner pipe comprises a plurality of inner pipe standard sections, adjacent inner pipe standard sections are detachably connected to form the inner pipe, and the pressing pipe is arranged to be driven by the driving device to rotate the eccentric wheel and move the sliding block downward along the guide rail to press the sampling pipe into the granary.

[0011] A negative pressure suction structure is detachably connected to the upper end of the sampling pipe.

[0012] Preferably, the eccentric distance between the hinging point on the eccentric wheel and the driving shaft between the eccentric wheel and the driving device is adjustable.

[0013] Preferably, the eccentric wheel is provided with a front-opening sliding groove extending in the eccentric direction of the eccentric wheel, and a adjusting sliding block is slidably arranged in the sliding groove, and the upper end of the connecting rod is hinged to the adjusting sliding block.

[0014] The sliding groove is provided with a position adjusting mechanism for driving the sliding block to move up and down in the sliding groove.

[0015] Preferably, the position adjusting mechanism comprises a screw rod rotatably arranged in the sliding groove, the screw rod extends in the extension direction of the sliding groove, the upper end of the screw rod penetrates the upper surface of the eccentric wheel, a threaded hole is formed in the adjusting sliding block and is threadedly matched with the screw rod, and the adjusting sliding block is threadedly sleeved on the screw rod through the threaded hole; an upper hinging shaft is fixed to the adjusting sliding block, the upper hinging shaft extends out of the front opening of the sliding groove, and an upper hinging hole is formed in the upper part of the connecting rod for the upper hinging shaft to penetrate.

[0016] Preferably, the upper end of the screw rod is fixedly connected with a rotating disc.

[0017] Preferably, the front side of the sliding block is fixedly connected with a connecting frame extending in the front-rear direction, and the connecting frame is detachably connected with the pressing pipe.

[0018] Preferably, the front and rear sides of the guide rail are both provided with an avoiding groove penetrating in the front-rear direction, a lower hinging shaft is arranged on the sliding block and extends out of the avoiding groove on the rear side, and a lower hinging hole is formed in the lower part of the connecting rod for the lower hinging shaft to penetrate.

[0019] The connecting frame extends out of the avoiding groove on the front side.

[0020] Preferably, the pipe pressing element comprises a mounting frame and a pressing plate, the upper surface of the pressing plate is fixedly connected with the mounting frame, and the rear end of the mounting frame is detachably connected with the front end of the fixed frame through bolts.

[0021] The pressing plate is in upper and lower correspondence with the sampling port.

[0022] Preferably, the lower surface of the pressing plate is fixedly connected with a buffer pad.

[0023] Preferably, a plurality of fixed frames are arranged on the mounting plate, and bolt connecting holes are arranged on the fixed frames to be connected with the top of the vertical silo.

[0024] The utility model discloses the advantages of:

[0025] 1, by first pressing into the outer tube, press into the inner tube, through the support of outer tube to reduce the pressure received by the inner tube, thereby facilitating the inner tube to go deep into the silo.

[0026] 2, at the same time, the inner tube and the outer tube are divided into a plurality of standard sections, which are convenient for transportation, and the standard sections are divided and driven into the silo, which is convenient for calculating the depth.

[0027] 3, by the up and down reciprocating motion of the pressing plate to the standard section, thereby saving manpower.

[0028] 4, the up and down reciprocating distance of the pressing plate is adjustable, which can adapt to standard sections of different sizes, and also facilitate the control of the driving depth, so that the sampling is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0030] Figure 1 It is the main body structure schematic diagram of embodiment 1;

[0031] Figure 2 It is the left view sectional structure schematic diagram of embodiment 1;

[0032] Figure 3 It is the working schematic diagram of embodiment 1;

[0033] Figure 4 It is the sampling tube structure schematic diagram of embodiment 1;

[0034] Figure 5 It is Figure 2 The enlarged structure schematic diagram of place A of;

[0035] Figure 6 Figure 2 is a schematic view of the sampling tube pulling-out operation.

[0036] In the figure, 1 is a mounting plate, 2 is a guide rail, 3 is a sliding block, 4 is a stand column, 5 is a driving device, 6 is an eccentric wheel, 601 is a sliding groove, 602 is a screw rod, 603 is an adjusting sliding block, 604 is a rotating disc, 7 is a connecting rod, 8 is a fixing frame, 9 is a connecting frame, 10 is a mounting frame, 11 is a pressing plate, 12 is a buffer pad, 13 is a sampling port, 14 is an outer tube, 15 is an inner tube, 16 is a tee structure, 17 is a hoisting head, and 18 is a quick coupler. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0038] Embodiment 1: This embodiment aims to provide a deep layer sampling device for a vertical silo.

[0039] According to Figures 1 to 6 As shown in the figure, it comprises a mounting plate 1, a stand column 4 and a sampling tube.

[0040] The mounting plate 1 is used to be connected with the top of the vertical silo, and a plurality of fixing frames 8 are arranged on the mounting plate 1, and bolt connection holes are arranged on the fixing frames 8 to be connected with the top of the vertical silo.

[0041] The stand column 4 is arranged on the upper surface of the mounting plate 1, and a driving device 5 is arranged on the stand column 4, and the driving device 5 can be selected as a motor in this embodiment, and the output end of the driving device 5 is fixedly connected with an eccentric wheel 6, the driving device 5 drives the eccentric wheel 6 to rotate, the connecting rod 7 is hinged to the eccentric wheel 6, and the hinge point of the eccentric wheel 6 and the connecting rod 7 is arranged eccentrically relative to the driving shaft between the eccentric wheel 6 and the driving device 5.

[0042] The mounting plate 1 is fixedly connected with a guide rail 2 extending in the up-down direction, and a sliding block 3 sliding in the up-down direction is arranged in the guide rail 2, the front side of the sliding block 3 is fixedly connected with a connecting frame 9 extending in the front-back direction, and the connecting frame 9 is detachably connected with the pressing tube.

[0043] The pressing tube comprises a mounting frame 10 and a pressing plate 11, the upper surface of the pressing plate 11 is fixedly connected with the mounting frame 10, the rear end of the mounting frame 10 is detachably connected with the front end of the fixing frame 8 through a bolt, and the lower surface of the pressing plate 11 is fixedly connected with a buffer pad 12, and the buffer pad 12 can be selected as rubber material in this embodiment.

[0044] The guide rail 2 is provided with a clearance groove on both front and rear sides, and the clearance grooves are transversely penetrated, the slider 3 is provided with a lower hinge shaft, the lower hinge shaft extends out of the clearance groove on the rear side, the lower part of the connecting rod 7 is provided with a lower hinge hole for the lower hinge shaft to pass through, and the connecting frame 9 extends out of the clearance groove on the front side.

[0045] The mounting plate 1 is provided with a transversely penetrated sampling port 13 corresponding to the position of the pressing plate 11, the lower end of the connecting rod 7 is hinged to the slider 3, and the top of the vertical silo is provided with a clearance port corresponding to the shape and position of the sampling port 13.

[0046] The sampling pipe comprises an outer pipe 14 and an inner pipe 15, the inner pipe 15 is sleeved in the outer pipe 14, the outer pipe 14 comprises a plurality of outer pipe standard sections, adjacent outer pipe standard sections are detachably connected to form the outer pipe 14, the inner pipe 15 comprises a plurality of inner pipe standard sections, adjacent inner pipe standard sections are detachably connected to form the inner pipe 15, the standard sections are threadedly connected, the thread connection of the standard sections is prior art, and will not be repeated in the embodiment, the outer pipe standard section at the lowermost end of the inner pipe 15 is an insertion section, the lower part of the insertion section is a tapered structure, a plurality of strip-shaped ports communicating with the inside of the inner pipe 15 are arranged on the tapered structure, the upward and downward movement of the pipe pressing part is realized through the reciprocating movement of the slider 3, so that each reciprocating movement of the pipe pressing part realizes the pressing of a complete standard section into the vertical silo, and the connecting end of the sampling pipe is located at the sampling port 13, so that another standard section can be continuously installed, so that each pressing is a fixed standard section length, and the sectional pressing is realized.

[0047] The pipe pressing part is arranged to be driven by the driving device 5 to rotate the eccentric wheel 6, and the connecting rod 7 drives the slider 3 to move downward along the guide rail to press the sampling pipe into the silo.

[0048] The negative pressure suction structure, the negative pressure suction structure in the embodiment can select a negative pressure suction material structure for discharging by a vacuum pump, and this structure is prior art, which will not be repeated in the embodiment.

[0049] The adaptive structure of the inner pipe standard section and the outer pipe standard section comprises a tee structure 16, the lower part of the tee structure 16 is a threaded connection port, the upper end is a pressure bearing end, the middle part of the tee structure 16 is provided with an exhaust port for connecting with the negative pressure suction structure, the tee structure 16 is installed at the upper end of the sampling pipe, the negative pressure suction structure is connected with the tee structure 16, so that the negative pressure suction structure is connected with the sampling pipe, the tee structure 16 is a common structure in prior art, which is generally a T-shaped pipe, and two tee structures 16 with different thread sizes at the lower end can be selected in the embodiment, which are adaptively shaped with the inner pipe standard section and the outer pipe standard section.

[0050] The connecting frame 9 adaptation structure includes a lifting head 17 and a quick connector 18, the lifting head 17 is detachably connected with the connecting frame 9 through bolts, the upper parts of the inner pipe standard section and the outer pipe standard section can be detachably connected with the quick connector 18 through threaded structures, the quick connector 18 can be selected in two sizes, which are respectively matched with the inner pipe standard section and the outer pipe standard section, the lifting head 17 is connected with a lifting rope, the quick connector 18 is provided with a lifting ring, the lower end of the lifting rope is connected with the lifting ring, which is convenient for quickly installing the adaptation structure to pull out the sampling pipe, since the pressing in is segmented, the single pressing in length is a standard section length, and the pulling out is also segmented, the single pulling out length is a standard section length, so that after pulling out, one standard section can be completely detached.

[0051] The eccentric wheel 6 is provided with a front opening sliding groove 601 extending along the eccentric direction of the eccentric wheel 6, and the adjusting sliding block 603 is slidably arranged in the sliding groove 601;

[0052] The sliding groove 601 is provided with a position adjusting mechanism for driving the sliding block 603 to move up and down in the sliding groove 601

[0053] The position adjusting mechanism includes a screw rod 602 rotatably arranged in the sliding groove, the screw rod 602 extends along the extension direction of the sliding groove 601, and the upper end of the screw rod 602 penetrates out of the upper surface of the eccentric wheel 6, the adjusting sliding block 603 is provided with a threaded hole matched with the screw rod 602 in thread, and the adjusting sliding block 603 is threadedly sleeved on the screw rod 602; the adjusting sliding block 603 is fixedly provided with an upper hinge shaft, the upper hinge shaft extends out of the front opening of the sliding groove 601, and the upper part of the connecting rod 7 is provided with an upper hinge hole through which the upper hinge shaft penetrates.

[0054] The upper end of the screw rod 602 is fixedly connected with a rotating disc 604.

[0055] When the eccentric distance between the upper hinge point of the eccentric wheel 6 and the driving shaft between the eccentric wheel 6 and the driving device 5 is adjusted, the rotating disc 604 is rotated, the rotating disc 604 drives the screw rod 602 to rotate, the screw rod 602 drives the adjusting sliding block 603 to move up and down under the limiting action of the sliding groove 601, the adjusting sliding block 603 is provided with the upper hinge shaft hinged with the connecting rod 7, so that the distance between the upper hinge shaft and the driving shaft between the eccentric wheel 6 and the driving device 5 can be adjusted, the eccentric distance of the upper hinge point of the eccentric wheel 6 can be adjusted, and the moving distance of the pressing plate 11 moving up and down can be adjusted, so that the standard sections of different lengths can be adapted, more complex working conditions can be adapted, the depth of the sampling pipe into the granary can be controlled, the depth control is facilitated, and the sampling accuracy is improved.

[0056] Working principle: in use, first put the outer tube standard section in the sampling port 13, drive device 5 device start driving eccentric wheel 6 rotation, eccentric wheel 6 downward rotation drive connecting rod 7 along its direction to the slider 3 exert pressure, so that the slider 3 along the guide rail 2 extension direction to move down, the slider 3 downward movement drive the press plate 11 to move down, so as to press into the silo outer tube standard section.

[0057] Eccentric wheel 6 upward rotation drive connecting rod 7 along its direction to the slider 3 exert pull, so that the slider 3 along the guide rail 2 extension direction to move up, the slider 3 upward movement, so that the press plate 11 reset, so as to realize the press plate 11 reciprocating movement.

[0058] In the press plate 11 upward movement, the outer tube standard section and sampling port 13 outside the tube standard section connection, through the above-mentioned way will be connected with the outer tube standard section one side to one side into the silo.

[0059] Then the upper end of the outer tube 14 and negative pressure suction structure connection, the grain sampling tube 14 inside the extraction.

[0060] After the grain sampling tube 14 inside the extraction, the inner tube standard section is placed in the sampling port 13, one hand holding, one side with another inner tube standard section and its connection, then a section of the lower, because the outer tube 14 at this time is hollow state, so the inner tube 15 down without the need for mechanical pressure, the lower end of the inner tube 15 and the lower end of the outer tube 14 flush, the lower end of the inner tube 15 and the grain pile in the silo contact, the upper part of the outer tube 14 and the inner tube 15 are threadedly connected with the tee structure 16, one side of the pressure one side of the suction, when a standard section is pressed into, remove the tee structure 16, connect another standard section, install the tee structure 16 again, through the press plate 11 reciprocating, one side of the connection standard section, one side of the section down, when the suction, so as to reduce the pressure generated when the pressure, through the suction so that the sampling tube contact the grain loose, facilitate the sampling tube inserted into the silo, wait for the pressure to the design position, through the negative pressure suction structure for sampling.

[0061] When the sampling tube is pulled out after sampling is completed, the pressing tube is detached from the connecting frame 9, the lifting head 17 is installed on the connecting frame 9 for pulling out the sampling tube, the lifting head 17 is moved up and down by moving the slider 3 up and down, the quick connector 18 is installed on the upper end of the inner tube 15, the inner tube 15 is pulled up when the lifting head 17 is moved up, when the slider 3 is moved to the top, the inner tube 15 is pulled out by a certain length, the pulled-out length is a standard length of the inner tube, the standard length of the inner tube is detached, the quick connector 18 is detached, the lifting rope is disconnected with the lifting ring again, the connecting end of the remaining inner tube 15 is located at the sampling port 13, the quick connector 18 is installed on the upper end of the remaining inner tube 15, then the lifting head 17 is moved down, the lifting rope is connected with the lifting ring again, and the above method is repeatedly repeated to pull out the inner tube 15 in sections.

[0062] The outer tube 14 is pulled out in sections according to the same method.

[0063] Therefore, the outer tube 14 can be pressed in first, then the grain in the outer tube 14 is sampled and evacuated, and then the inner tube 15 is pressed in, so that the outer tube 14 is supported, the grain at the support of the outer tube 14 does not contact the inner tube 15, the pressure of the grain accumulation on the inner tube 15 is reduced, the pressure on the inner tube 15 is reduced when the inner tube 15 is pressed down, so that the inner tube 15 can be more deeply pressed into the silo, and the outer tube 14 and the inner tube 15 are pulled out in sections, which is convenient for carrying, and the outer tube 14 and the inner tube 15 are pressed in in sections, which is convenient for calculating the depth, convenient for sampling at different depths at different positions, and the pressing plate 11 is moved up and down to press down, which saves manpower.

[0064] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced by the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A deep-probe sampling device for a silo, characterized by: The sampling device comprises a mounting plate (1), a stand (4) and a sampling tube; The mounting plate (1) is used to be connected with the top of the silo; The stand (4) is arranged on the upper surface of the mounting plate (1), and the stand (4) is provided with a driving device (5). The output end of the driving device (5) is fixedly connected with an eccentric wheel (6). The driving device (5) drives the eccentric wheel (6) to rotate. The eccentric wheel (6) is hingedly connected with a connecting rod (7). The hinging point of the eccentric wheel (6) and the connecting rod (7) is arranged eccentrically relative to the driving shaft between the eccentric wheel (6) and the driving device (5). The mounting plate (1) is fixedly provided with a guide rail (2) extending in the up-down direction. A sliding block (3) capable of sliding in the up-down direction is slidably arranged in the guide rail (2). The sliding block (3) is detachably connected with a pressing pipe component. The mounting plate (1) is provided with a sampling port (13) corresponding to the position of the pressing pipe component in the up-down direction. The lower end of the connecting rod (7) is hingedly connected with the sliding block (3). The sampling tube comprises an outer tube (14) and an inner tube (15). The inner tube (15) is sleeved in the outer tube (14). The outer tube (14) comprises a plurality of outer tube standard sections. The adjacent outer tube standard sections are detachably connected to form the outer tube (14). The inner tube (15) comprises a plurality of inner tube standard sections. The adjacent inner tube standard sections are detachably connected to form the inner tube (15). The pressing pipe component is arranged to be driven by the driving device (5) to rotate the eccentric wheel (6) and to drive the connecting rod (7) to move the sliding block (3) downward along the guide rail to press the sampling tube to be inserted into the silo. A negative pressure suction structure is detachably connected with the upper end of the sampling tube.

2. A deep layer sampling device for a silo according to claim 1, characterized in that: The hinging point on the eccentric wheel (6) and the eccentric distance of the driving shaft between the eccentric wheel (6) and the driving device (5) are adjustable.

3. A deep layer sampling device for a silo according to claim 2, characterized in that: The eccentric wheel (6) is provided with a front opening sliding groove (601) extending in the eccentric direction of the eccentric wheel (6). An adjusting sliding block (603) is slidably arranged in the sliding groove (601). The adjusting sliding block (603) is hingedly connected with the upper end of the connecting rod (7). The sliding groove (601) is provided with a position adjusting mechanism for driving the sliding block (603) to move up and down in the sliding groove (601).

4. A deep layer sampling device for a silo according to claim 3, characterized in that: The position adjusting mechanism comprises a screw rod (602) rotatably arranged in the sliding groove. The screw rod (602) extends along the extension direction of the sliding groove (601). The upper end of the screw rod (602) penetrates through the upper surface of the eccentric wheel (6). A threaded hole is formed in the adjusting sliding block (603) and is threadedly matched with the screw rod (602). The adjusting sliding block (603) is threadedly sleeved on the screw rod (602). An upper hinging shaft is fixedly arranged on the adjusting sliding block (603). The upper hinging shaft extends out of the front opening of the sliding groove (601). An upper hinging hole is formed in the upper portion of the connecting rod (7) and is penetrated by the upper hinging shaft.

5. A deep layer sampling device for a silo according to claim 4, characterized in that: The upper end of the screw rod (602) is fixedly connected with a rotating disc (604).

6. A deep layer sampling device for a silo according to any one of claims 1 to 5, characterized in that: The front side of the sliding block (3) is fixedly connected with a connecting frame (9) extending in the front-rear direction. The connecting frame (9) is detachably connected with the pressing pipe component.

7. A deep layer sampling device for a silo according to claim 6, characterized in that: The guide rail (2) is provided with an avoiding slot on both front and back sides, and the avoiding slots are permeable from front to back, the slider (3) is provided with a lower hinged shaft, the lower hinged shaft extends out of the avoiding slot on the back side, and the lower part of the connecting rod (7) is provided with a lower hinged hole for the lower hinged shaft to pass through; The connecting frame (9) extends out of the avoiding slot on the front side.

8. A deep layer sampling device for a silo according to claim 7, characterized in that: The pipe pressing element comprises a mounting frame (10) and a pressing plate (11), the upper surface of the pressing plate (11) is fixedly connected with the mounting frame (10), and the rear end of the mounting frame (10) is detachably connected with the front end of the fixed frame (8) through bolts; The pressing plate (11) is in position up-and-down correspondence with the sampling port (13).

9. A deep layer sampling device for a silo according to claim 8, characterized in that: The lower surface of the pressing plate (11) is fixedly connected with a buffer pad (12).

10. A deep layer sampling device for a silo according to any one of claims 1-5, characterized in that: The mounting plate (1) is provided with a plurality of fixed frames (8), and the fixed frames (8) are provided with bolt connecting holes for connecting with the top of the vertical silo.

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