Coal pile sampling device

Abstract

The invention discloses a coal pile sampling device, which comprises a sampling unit, which comprises a sampling assembly for drilling into a coal pile to sample coal at different layers, and an adjusting assembly arranged at the upper part of the sampling assembly and used for adjusting the sampling assembly to carry out sampling operation; and the drilling unit penetrates from the upper part of the sampling unit to the lower part of the sampling unit and is used for driving the sampling assembly to enter the coal pile and performing fluffy treatment on the coal pile in the outer side area of the sampling assembly. By reversely rotating the opening switching mechanism, the sample storage groove filled with the coal samples is rotated to be in a staggered state with the feeding channel, in the process, if the coal at the opening of the sample storage groove clamps the sample storage groove and the feeding channel, the cleaning mechanism can be rotated, and the cleaning mechanism retreats the coal clamped at the sample storage groove and the feeding channel, so that the sample storage groove and the feeding channel are separated from each other. It is ensured that the sample storage groove can be thoroughly staggered from the feeding channel, and the sampling error is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of coal pile sampling, and specifically provides a coal pile sampling device. Background Art

[0002] As an important part of the global energy structure, the quality of coal directly affects energy utilization efficiency, economic benefits and environmental protection. In the process of coal production, trade and utilization, coal pile sampling is a key link in evaluating coal quality. During the stacking process of coal piles, due to particle size separation, moisture migration and oxidation, there are significant differences in coal quality at different layers. When sampling a coal pile, it is usually necessary to collect coal from different layers for analysis;

[0003] When the existing coal pile sampling devices sample coal at different layers, it is necessary to manually insert the sampling device into the coal pile, and then turn on the sampling device's sample storage slots distributed from top to bottom to sample coal at different layers. After sampling, close the sample storage slots and pull out the sampling device from the coal pile, so that the coal samples loaded in the sample storage slots are taken out. However, when using this sampling device for stratified sampling of coal, the following defects exist:

[0004] 1. After a long time of stacking, the coal is relatively dense, and it is more difficult to manually insert the sampling device into the coal pile, which requires a large amount of manpower;

[0005] 2. For relatively dense coal, even after the sampling device is inserted into the coal pile, it is still difficult for the relatively dense coal to slide into the sample storage slots of the sampling device, which easily causes the phenomenon that some sample storage slots do not obtain coal samples;

[0006] 3. When the sample storage slots of the sampling device are closed in the coal pile after sampling, there is a situation where coal blocks the opening of the sample storage slots, making it difficult to completely close the sample storage slots. As a result, when the sampling device is pulled out, coal from other layers is mixed into the sample storage slots, resulting in a large sampling error.

[0007] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0008] The purpose of the present invention is to provide a coal pile sampling device to solve the problems in the prior art that the coal sampling device consumes a large amount of manpower during the sampling process, there are some sample storage slots that do not obtain coal samples, and the sampling error is large.

[0009] To achieve the above purpose, the present invention provides the following technical solutions:

[0010] A coal pile sampling device includes:

[0011] Sampling unit, including a sampling component for drilling into a coal pile to sample coal at different levels, and an adjustment component provided above the sampling component for adjusting the sampling operation of the sampling component. The adjustment component includes an opening switching mechanism for adjusting the position of the opening of the sampling component, a cleaning mechanism provided on one side of the opening of the sampling component for cleaning the coal on one side of the opening of the sampling component, and a feeding mechanism provided in the middle of the opening of the sampling component for guiding the coal into the sampling component;

[0012] Drilling unit, penetrating from above the sampling unit to below the sampling unit, for driving the sampling component into the interior of the coal pile and fluffing the coal pile in the area outside the sampling component.

[0013] Furthermore, the drilling unit includes:

[0014] A driving motor, installed at the upper end of the adjustment component, and a driving shaft penetrating through the driving end of the driving motor;

[0015] A plurality of brackets, fixedly connected to the upper end of the adjustment component and located outside the driving motor;

[0016] A grip, fixedly connected to the upper ends of the plurality of brackets, for holding the sampling component;

[0017] A drill bit, fixedly connected to one end of the driving shaft opposite to the driving motor, for drilling into the coal pile.

[0018] Furthermore, a shoveling part is fixedly connected to the outside of the drill bit;

[0019] There are two groups of the shoveling parts, and the shoveling direction is set as an inclined plane inclined upward, for fluffing the coal;

[0020] A limiting sleeve is fixedly connected to the upper end of the drill bit and located outside the sampling component, and an annular groove is provided inside the limiting sleeve;

[0021] A limiting ring extending into the annular groove is fixedly sleeved on the outside of the sampling component, for cooperating with the limiting sleeve to limit the drill bit.

[0022] Furthermore, the sampling component includes:

[0023] An insertion cylinder, sleeved outside the driving shaft, and an accommodation cavity for accommodating the opening switching mechanism is provided inside the insertion cylinder;

[0024] A plurality of feeding channels are equidistantly arranged along the insertion cylinder from top to bottom, for guiding coal at different levels into the opening switching mechanism.

[0025] Furthermore, the adjustment component further includes:

[0026] The fixed disk is fixedly connected to the upper end of the insertion cylinder and is used to carry the drilling unit. A groove for accommodating the upper part of the adjustment assembly is provided inside the fixed disk.

[0027] Furthermore, the opening switching mechanism includes:

[0028] The sample storage column is rotatably connected inside the accommodation cavity;

[0029] Sample storage grooves are provided in multiple groups at equal intervals along the sample storage column from top to bottom and correspond to the feeding channels one by one, and are used to sample coals at different horizons;

[0030] The third pull rod is fixedly connected to the upper end of the sample storage column and is used to rotate and adjust the sample storage column.

[0031] Furthermore, the material guiding mechanism includes:

[0032] The second rotating shaft is rotatably connected inside the sample storage column. A second pull rod for rotating and adjusting the second rotating shaft is fixedly connected to the outer side of the second rotating shaft near the upper part;

[0033] The material slapping piece is fixedly connected to the outer side of the second rotating shaft and is located inside the sample storage groove, and is used to slap and scatter the piled coals at the feeding channel of the insertion cylinder;

[0034] The limiting block is fixedly connected to the lower end of the second rotating shaft and is located inside the sample storage column, and is used to limit the second rotating shaft. The limiting block is rotatably connected to the sample storage column.

[0035] Furthermore, the cleaning mechanism includes:

[0036] The cleaning part is arranged on one side inside the sample storage groove and is used to clean the coals at the opening edge of the storage groove. The cleaning part corresponds to the sample storage groove one by one;

[0037] The first rotating shaft penetrates through the inside of the cleaning part and is used to drive the cleaning part to clean the coals at the opening edge of the storage groove;

[0038] The first pull rod is fixedly connected to the upper end edge of the first rotating shaft and is used to rotate and adjust the first rotating shaft.

[0039] Furthermore, the cleaning part includes:

[0040] The guide plate is fixedly connected to one side inside the sample storage groove, and an L-shaped cavity is provided inside the guide plate;

[0041] The cleaning rod is slidably inserted inside the guide plate. The cleaning rod is L-shaped, and one end of it contacts the inner wall of the sample storage groove;

[0042] The cam is fixedly sleeved outside the first rotating shaft and located inside the guide plate, and is used to push the cleaning rod to eject the coal at the opening edge of the sample storage groove.

[0043] Furthermore, a guide shaft is fixedly connected to the side of the cleaning rod. The guide shaft is arranged opposite to the opening of the sample storage groove and there are multiple guide shafts arranged along the cleaning rod from top to bottom.

[0044] A retraction groove for guiding the movement of the guide shaft is arranged inside the guide plate.

[0045] A return spring for resetting the cleaning rod after ejection is sleeved outside the guide shaft.

[0046] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0047] 1. In the present invention, the drilling unit drives the sampling assembly to drill into the coal pile and fluff the coal around the sampling assembly. Then, the opening switching mechanism is rotated to align the sample storage groove with the feeding channel. The feeding guide mechanism is rotated reciprocally, so that the coal accumulated near the feeding channel falls into the sample storage groove through the feeding channel after being slapped by the feeding guide mechanism, ensuring that coal samples can enter the sample storage groove corresponding to each layer. Finally, the opening switching mechanism is rotated in the reverse direction to rotate the sample storage groove filled with coal samples to a state misaligned with the feeding channel. During this process, if the coal at the opening of the sample storage groove clamps the sample storage groove and the feeding channel tightly, the cleaning mechanism can be rotated, and the cleaning mechanism will eject the coal clamped at the sample storage groove and the feeding channel to ensure that the sample storage groove can be completely misaligned with the feeding channel, reducing the sampling error. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 It is a diagram showing the cooperation relationship between the sampling unit and the drilling unit of the present invention;

[0050] Figure 3 In the present invention Figure 2 The enlarged view at A;

[0051] Figure 4 It is a schematic diagram of the structure of the feeding guide mechanism of the present invention;

[0052] Figure 5 It is a schematic diagram of the structure of the adjusting assembly of the present invention;

[0053] Figure 6 It is a diagram showing the cooperation relationship between the accommodation cavity and the insertion cylinder of the present invention;

[0054] Figure 7 It is a diagram showing the cooperation relationship between the cleaning part and the sample storage groove of the present invention;

[0055] Figure 8 Schematic diagram of the internal structure of the cleaning part of the present invention;

[0056] Figure 9 Cooperating relationship diagram of the guide plate and the first rotating shaft of the present invention;

[0057] Figure 10 Cooperating relationship diagram of the drill bit and the shoveling part of the present invention.

[0058] Reference numerals: 1. Sampling unit; 11. Sampling assembly; 111. Insertion cylinder; 112. Feeding channel; 113. Accommodation cavity; 12. Adjusting assembly; 121. Fixed disk; 122. Cleaning mechanism; 1221. First pull rod; 1222. First rotating shaft; 12221. Cam; 1223. Cleaning part; 12231. Guide plate; 122311. Retreating groove; 12232. Cleaning rod; 12233. Guide shaft; 12234. Return spring; 123. Material guiding mechanism; 1231. Second pull rod; 1232. Second rotating shaft; 1233. Paddling piece; 1234. Limiting block; 124. Opening switching mechanism; 1241. Third pull rod; 1242. Sample storage column; 1243. Sample storage groove; 2. Drilling unit; 21. Driving motor; 22. Bracket; 23. Handle; 24. Driving shaft; 25. Drill bit; 251. Limiting sleeve; 252. Ring groove; 253. Limiting ring; 26. Shoveling part. Detailed implementation manners

[0059] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0060] Please refer to Figures 1-10 , the present invention provides a technical solution:

[0061] A coal pile sampling device, comprising:

[0062] A sampling unit 1, including a sampling assembly 11 for drilling into a coal pile to sample coal at different levels, and an adjusting assembly 12 provided above the sampling assembly 11 for adjusting the sampling operation of the sampling assembly. The adjusting assembly 12 includes an opening switching mechanism 124 for adjusting the position of the opening of the sampling assembly 11, a cleaning mechanism 122 provided on one side of the opening of the sampling assembly 11 for cleaning the coal on one side of the opening of the sampling assembly 11, and a material guiding mechanism 123 provided in the middle of the opening of the sampling assembly for guiding the coal into the sampling assembly 11;

[0063] The drilling unit 2 penetrates from above the sampling unit 1 to below the sampling unit 1, and is used to drive the sampling assembly 11 into the interior of the coal pile and fluff the coal pile in the area outside the sampling assembly 11.

[0064] It should be noted that: the drilling unit 2 drives the sampling assembly 11 to drill into the coal pile and fluff the coal around the sampling assembly 11. Then, rotate the opening switching mechanism 124 so that the sample storage groove 1243 is aligned with the feeding channel 112, and rotate the guiding mechanism 123 reciprocally, so that the coal accumulated near the feeding channel 112 passes through the feeding channel 112 after being slapped by the guiding mechanism 123 and falls into the sample storage groove 1243, ensuring that coal samples can enter the sample storage groove 1243 corresponding to each layer. Finally, rotate the opening switching mechanism 124 in the reverse direction so that the sample storage groove 1243 after being filled with coal samples rotates to a state where it is misaligned with the feeding channel 112. During this process, if the coal at the opening of the sample storage groove 1243 clamps the sample storage groove 1243 and the feeding channel 112, the cleaning mechanism 122 can be rotated, and the cleaning mechanism 122 withdraws the coal clamped at the sample storage groove 1243 and the feeding channel 112, ensuring that the sample storage groove 1243 can be completely misaligned with the feeding channel 112 and reducing the sampling error.

[0065] As an improvement, as Figures 1-2 , Figure 10 shown, the drilling unit 2 includes:

[0066] A driving motor 21 is installed at the upper end of the adjusting assembly 12, and a driving shaft 24 penetrates through the driving end of the driving motor 21;

[0067] A plurality of brackets 22 are provided, fixedly connected to the upper end of the adjusting assembly 12 and located outside the driving motor 21;

[0068] A grip 23 is fixedly connected to the upper ends of the plurality of brackets 22 and is used to pick up the sampling assembly 11;

[0069] A drill bit 25 is fixedly connected to one end of the driving shaft 24 opposite to the driving motor 21 and is used to drill into the coal pile.

[0070] Furthermore, as Figure 10 shown, a shoveling part 26 is fixedly connected to the outside of the drill bit 25;

[0071] There are two groups of the shoveling parts 26, and the shoveling direction is set as an inclined plane inclined upward, which is used to fluff the coal;

[0072] A limiting sleeve 251 is fixedly connected to the upper end of the drill bit 25 and located outside the sampling assembly 11, and an annular groove 252 is provided inside the limiting sleeve 251;

[0073] A limiting ring 253 is fixedly sleeved outside the sampling assembly 11 and extends into the inner part of the annular groove 252 for limiting the drill bit 25 in cooperation with the limiting sleeve 251.

[0074] As an improvement, as Figure 2 , Figure 6 shown, the sampling assembly 11 includes:

[0075] An insertion cylinder 111 is sleeved outside the drive shaft 24, and an accommodation cavity 113 for accommodating the opening switching mechanism 124 is arranged inside the insertion cylinder 111;

[0076] A plurality of groups of feed channels 112 are arranged at equal intervals along the insertion cylinder 111 from top to bottom for guiding coals at different horizons into the opening switching mechanism 124.

[0077] Furthermore, as Figures 2-5 , Figures 7-9 shown, the adjusting assembly 12 further includes:

[0078] A fixed disk 121 is fixedly connected to the upper end of the insertion cylinder 111 for carrying the drilling unit 2, and a groove for accommodating the upper part of the adjusting assembly 12 is arranged inside the fixed disk 121.

[0079] Even further, the opening switching mechanism 124 includes:

[0080] A sample storage column 1242 is rotatably connected inside the accommodation cavity 113;

[0081] A plurality of groups of sample storage grooves 1243 are arranged at equal intervals along the sample storage column 1242 from top to bottom and correspond to the feed channels 112 one by one for sampling coals at different horizons;

[0082] A third pull rod 1241 is fixedly connected to the upper end of the sample storage column 1242 for rotationally adjusting the sample storage column 1242.

[0083] Among them, as Figures 3-5 , Figure 7 shown, the material guiding mechanism 123 includes:

[0084] A second rotating shaft 1232 is rotatably connected inside the sample storage column 1242, and a second pull rod 1231 for rotationally adjusting the second rotating shaft 1232 is fixedly connected to the outer side of the second rotating shaft 1232 near the upper part;

[0085] A material slapping piece 1233 is fixedly connected to the outer side of the second rotating shaft 1232 and is located inside the sample storage groove 1243 for slapping and scattering the piled-up coals at the position of the feed channel 112 of the insertion cylinder 111;

[0086] The limiting block 1234 is fixedly connected to the lower end of the second rotating shaft 1232 and is located inside the sample storage column 1242, and is used for limiting the second rotating shaft 1232. The limiting block 1234 is rotatably connected to the sample storage column 1242.

[0087] As an improvement, as Figures 7-9 shown, the cleaning mechanism 122 includes:

[0088] The cleaning part 1223 is arranged on one side inside the sample storage groove 1243 and is used for cleaning the coal at the opening edge of the storage groove. The cleaning part 1223 corresponds to the sample storage groove 1243 one by one;

[0089] The first rotating shaft 1222 is arranged through the inside of the cleaning part 1223 and is used for driving the cleaning part 1223 to clean the coal at the opening edge of the storage groove;

[0090] The first pull rod 1221 is fixedly connected to the upper end edge of the first rotating shaft 1222 and is used for rotating and adjusting the first rotating shaft 1222.

[0091] Further, the cleaning part 1223 includes:

[0092] The guide plate 12231 is fixedly connected to one side inside the sample storage groove 1243, and an L-shaped cavity is arranged inside the guide plate 12231;

[0093] The cleaning rod 12232 is slidably inserted inside the guide plate 12231. The cleaning rod 12232 is L-shaped, and one end of it contacts the inner wall of the sample storage groove 1243;

[0094] The cam 12221 is fixedly sleeved outside the first rotating shaft 1222 and is located inside the guide plate 12231, and is used for pushing the cleaning rod 12232 to eject the coal at the opening edge of the sample storage groove 1243.

[0095] Even further, a guide shaft 12233 is fixedly connected to the side of the cleaning rod 12232. The guide shaft 12233 is arranged opposite to the opening of the sample storage groove 1243 and there are multiple guide shafts 12233 arranged from top to bottom along the cleaning rod 12232;

[0096] A retreat groove 122311 for guiding the movement of the guide shaft 12233 is arranged inside the guide plate 12231;

[0097] A return spring 12234 for resetting the cleaning rod 12232 after ejection is sleeved outside the guide shaft 12233.

[0098] It should be noted that: in the specific implementation process of the present invention, as Figures 1-2 , Figure 10As shown, when sampling a certain part of the coal pile, the handle 23 is held, so that the insertion tube 111 is in a vertical state and the drill bit 25 is placed on the top of the coal pile, and the driving motor 21 is started. The driving motor 21 drives the drill bit 25 to rotate through the driving shaft 24, and the drill bit 25 drives the insertion tube 111 to drill into the coal pile. There is no need to use manpower to push the drill bit 25 into the coal pile, which saves time and effort.

[0099] The drill bit 25 drives the insertion tube 111 to drill into the coal pile while driving the scooping part 26 to rotate. The scooping part 26 gradually scoops up the coal outside the insertion tube 111, so that the coal around the insertion tube 111 is in a fluffy state, which is convenient for the subsequent introduction of the fluffy coal into the sample storage tank 1243. It is worth noting that the scooping part 26 scoops up the coal to a fluffy state. Although the overall height of the coal increases when it changes from a compact state to a fluffy state, the fluffy treatment of the coal by scooping does not affect the overall layer of the coal.

[0100] like Figures 2-7 As shown, when the drill bit 25 brings the insertion tube 111 into the depth of the coal pile, the third pull rod 1241 is rotated, and the third pull rod 1241 drives the sample storage column 1242 to rotate in the accommodating chamber 113, and the sample storage column 1242 drives the sample storage slot 1243 to switch from the original staggered state with the feed channel 112 to the state opposite to the feed channel 112. At this time, the second pull rod 1231 is swung back and forth, and the second pull rod 1231 drives the material slapping piece 1233 to swing back and forth through the second rotating shaft 1232. The material slapping piece 1233 slaps the coal in a fluffy piled state near the opening of the feed channel 112, so that the coal is scattered into the sample storage slot 1243 for collection, ensuring that the sample storage slot 1243 corresponding to each layer can sample the coal of the corresponding layer, avoiding the phenomenon that the coal is not collected in the individual sample storage slots 1243.

[0101] like Figures 4-9As shown, after each sample storage slot 1243 samples coal, the third pull rod 1241 is rotated in the opposite direction, and the third pull rod 1241 drives the sample storage slot 1243 filled with coal to rotate in the opposite direction through the sample storage column 1242, so that the sample storage slot 1243 is in a state of being staggered with the feeding channel 112. If during this process, coal is blocked between the sample storage slot 1243 and the feeding channel 112, resulting in the sample storage slot 1243 being unable to be completely misaligned with the feeding channel 112, the first pull rod 1221 is rotated, and the first pull rod 1221 drives the cam 12221 to rotate through the first rotating shaft 1222, and the raised portion of the cam 12221 pushes the cleaning rod 12232 to be gradually The reset spring 12234 is compressed and moves outward along the guide plate 12231, so that the coal stuck between the sample storage groove 1243 and the feeding channel 112 is pushed out by the cleaning rod 12232. Then, the first pull rod 1221 is rotated in the opposite direction, so that the protrusion of the cam 12221 is disengaged from the cleaning rod 12232, and the reset spring 12234 drives the cleaning rod 12232 to enter the inside of the guide plate 12231. At this time, the third pull rod 1241 is continuously rotated, so that the sample storage groove 1243 and the feeding channel 112 are completely staggered, ensuring that the sample storage groove 1243 can be completely closed before the insertion tube 111 is pulled out of the coal pile, and the sampling accuracy is high.

[0102] After the sample storage slot 1243 is completely closed, the handle 23 is pulled upward to pull the entire device out of the coal pile, thereby completing the use work.

[0103] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0104] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal pile sampling device, characterized in that, Including: A sampling unit (1), including a sampling component (11) for drilling into a coal pile to sample coal at different levels, an adjusting component (12) provided above the sampling component (11) for adjusting the sampling operation of the sampling component, the adjusting component (12) including an opening switching mechanism (124) for adjusting the position of the opening of the sampling component (11), a cleaning mechanism (122) provided on one side of the opening of the sampling component (11) for cleaning the coal on one side of the opening of the sampling component (11), and a feeding mechanism (123) provided in the middle of the opening of the sampling component for guiding the coal into the sampling component (11); A drilling unit (2), penetrating from above the sampling unit (1) to below the sampling unit (1), for driving the sampling component (11) into the interior of the coal pile and fluffing the coal pile in the area outside the sampling component (11).

2. The coal pile sampling device according to claim 1, characterized in that: The drilling unit (2) includes: A driving motor (21), installed at the upper end of the adjusting component (12), and a driving end of the driving motor (21) is connected with a penetrating driving shaft (24); A bracket (22), provided with multiple groups, fixedly connected to the upper end of the adjusting component (12) and located outside the driving motor (21); A grip (23), fixedly connected to the upper ends of multiple groups of the brackets (22) for holding the sampling component (11); A drill bit (25), fixedly connected to one end of the driving shaft (24) opposite to the driving motor (21) for drilling into the coal pile.

3. The coal pile sampling device according to claim 2, characterized in that: A shoveling part (26) is fixedly connected to the outside of the drill bit (25); There are two groups of the shoveling parts (26), and the shoveling direction is set as an inclined plane inclined upward for fluffing the coal; A limiting sleeve (251) is fixedly connected to the upper end of the drill bit (25) and located outside the sampling component (11), and an annular groove (252) is provided inside the limiting sleeve (251); A limiting ring (253) extending into the annular groove (252) is fixedly sleeved on the outside of the sampling component (11) for cooperating with the limiting sleeve (251) to limit the drill bit (25).

4. The coal pile sampling device according to claim 2, characterized in that: The sampling component (11) includes: An insertion cylinder (111), sleeved outside the driving shaft (24), and an accommodation cavity (113) for accommodating the opening switching mechanism (124) is provided inside the insertion cylinder (111); Feeding channels (112), multiple groups of which are arranged at equal intervals along the insertion cylinder (111) from top to bottom, for guiding coal at different levels into the opening switching mechanism (124).

5. The coal pile sampling device according to claim 4, characterized in that: The adjusting component (12) further includes: The fixed disk (121) is fixedly connected to the upper end of the insertion cylinder (111) and is used to carry the drilling unit (2). A groove for accommodating the upper part of the adjusting assembly (12) is provided inside the fixed disk (121).

6. The coal pile sampling device according to claim 4, characterized in that: The opening switching mechanism (124) includes: The sample storage column (1242) is rotatably connected inside the accommodation cavity (113); A plurality of sample storage grooves (1243) are equidistantly arranged along the sample storage column (1242) from top to bottom and correspond to the feeding channels (112) one by one, and are used for sampling coal at different horizons; The third pull rod (1241) is fixedly connected to the upper end of the sample storage column (1242) and is used to rotate and adjust the sample storage column (1242).

7. The coal pile sampling device according to claim 6, characterized in that: The material guiding mechanism (123) includes: The second rotating shaft (1232) is rotatably connected inside the sample storage column (1242). A second pull rod (1231) for rotating and adjusting the second rotating shaft (1232) is fixedly connected to the outer side of the second rotating shaft (1232) near the upper part; The material slapping piece (1233) is fixedly connected to the outer side of the second rotating shaft (1232) and is located inside the sample storage groove (1243), and is used to slap and scatter the piled coal at the feeding channel (112) of the insertion cylinder (111); The limiting block (1234) is fixedly connected to the lower end of the second rotating shaft (1232) and is located inside the sample storage column (1242), and is used to limit the second rotating shaft (1232). The limiting block (1234) is rotatably connected to the sample storage column (1242).

8. The coal pile sampling device according to claim 6, characterized in that: The cleaning mechanism (122) includes: The cleaning part (1223) is arranged on one side inside the sample storage groove (1243) and is used to clean the coal at the opening edge of the storage groove. The cleaning part (1223) corresponds to the sample storage groove (1243) one by one; The first rotating shaft (1222) penetrates through the cleaning part (1223) and is used to drive the cleaning part (1223) to clean the coal at the opening edge of the storage groove; The first pull rod (1221) is fixedly connected to the upper end edge of the first rotating shaft (1222) and is used to rotate and adjust the first rotating shaft (1222).

9. The coal pile sampling device according to claim 8, characterized in that: The cleaning part (1223) includes: The guide plate (12231) is fixedly connected to one side inside the sample storage groove (1243). An L-shaped cavity is provided inside the guide plate (12231); The cleaning rod (12232) is slidably inserted into the guide plate (12231). The cleaning rod (12232) is L-shaped, and one end of it contacts the inner wall of the sample storage groove (1243); The cam (12221) is fixedly sleeved outside the first rotating shaft (1222) and is located inside the guide plate (12231), and is used to push the cleaning rod (12232) to eject the coal at the opening edge of the sample storage groove (1243).

10. The coal pile sampling device according to claim 9, wherein: A guide shaft (12233) is fixedly connected to the side of the cleaning rod (12232), the guide shaft (12233) is arranged opposite to the opening of the sample storage groove (1243), and a plurality of guide shafts (12233) are arranged along the cleaning rod (12232) from top to bottom; A retraction groove (122311) for guiding the movement of the guide shaft (12233) is arranged inside the guide plate (12231); A return spring (12234) for returning the cleaning rod (12232) after ejection is sleeved outside the guide shaft (12233).

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