CN113758740A - Handheld simple sampler capable of probing deep part of coal pile - Google Patents
Handheld simple sampler capable of probing deep part of coal pile Download PDFInfo
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- CN113758740A CN113758740A CN202110933735.XA CN202110933735A CN113758740A CN 113758740 A CN113758740 A CN 113758740A CN 202110933735 A CN202110933735 A CN 202110933735A CN 113758740 A CN113758740 A CN 113758740A
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- coal pile
- handheld box
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- 239000003245 coal Substances 0.000 title claims abstract description 39
- 238000005070 sampling Methods 0.000 claims abstract description 42
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a handheld simple sampler capable of extending into the deep part of a coal pile, which comprises a handheld box, wherein an outer extension rod is arranged in the handheld box, the outer extension rod is connected with a middle extension rod in a threaded manner, the middle extension rod is connected with an inner extension rod in a threaded manner, and a sampling part is arranged at one end, far away from the handheld box, of the inner extension rod; the handheld box is provided with a driving part for driving the outer extending rod to rotate; according to the invention, under the driving of the driving part, the outer extension rod rotates, so that the middle extension rod in threaded connection with the inner portion of the middle extension rod extends out, after the middle extension rod completely extends out of the outer extension rod, the outer extension rod can drive the middle extension rod to rotate, and the inner extension rod in threaded connection with the middle extension rod extends out.
Description
Technical Field
The invention relates to the technical field of samplers, in particular to a handheld simple sampler capable of probing into a deep part of a coal pile.
Background
Coal is a combustible black or brown black sedimentary rock, usually occurs in the rock strata or veins of coal beds or coal seams, mainly consists of elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus, the sum of the first three accounts for about more than 95% of organic matters, is a very important energy source, and mainly produces electricity or heat energy through combustion; is also an important raw material in metallurgy and chemical industry, and is used for refining metal or producing chemical fertilizer and a plurality of chemical products; coal is used comparatively commonly in steel production and course of working, mainly used provides great heat and high temperature, and the kind and the quality of coal among the prior art are also inequality many, and the poor coal of quality can produce more impurity, consequently need carry out the sampling test to the coal, and among the prior art coal piles up the coal more, and the sample to coal pile deep coal is also comparatively difficult. In view of this, we propose a simple hand-held sampler that can be inserted deep into a coal pile.
Disclosure of Invention
In order to make up for the defects, the invention provides a handheld simple sampler which can be inserted into the deep part of a coal pile.
The technical scheme of the invention is as follows:
a handheld simple sampler capable of stretching into the deep part of a coal pile comprises a handheld box, wherein an outer extension rod is installed inside the handheld box, the outer extension rod is connected with a middle extension rod in a threaded manner, the middle extension rod is connected with an inner extension rod in a threaded manner, and a sampling component is installed at one end, far away from the handheld box, of the inner extension rod; and the handheld box is provided with a driving part for driving the outer extending rod to rotate.
As a preferred technical scheme, the sampling component comprises a fixed block fixedly connected with the inner extension rod, a movable block is rotatably connected onto the fixed block, a first motor is installed inside the fixed block, and the fixed block is fixedly connected with an output shaft of the first motor in a key joint manner; four sampling plates which are in a cone shape after being closed up are hinged on the movable block.
As preferred technical scheme, the inside fixedly connected with second motor of movable block, the movable block is located sampling plate one end is rotated and is connected with first threaded rod, first threaded rod with second motor output shaft key joint is fixed, threaded connection has the activity dish on the first threaded rod, the activity dish with install the connecting rod between the sampling plate, the connecting rod with the activity dish with the sampling plate inner wall is all articulated.
Preferably, the driving part comprises a third motor fixedly connected to the handheld box, a second threaded rod is rotatably connected to the inner wall of the handheld box, the second threaded rod is in key joint with an output shaft of the third motor, and the external extension rod is connected with the second threaded rod.
As a preferable technical scheme, one end of the outward extending rod, which is close to the second threaded rod, is provided with a threaded opening, the outer side of the threaded opening is provided with a driving groove, one end of the second threaded rod, which is close to the outward extending rod, is fixed with a plurality of clamping blocks, and the clamping blocks can be inserted into the driving groove; the driving groove is in threaded connection with the second threaded rod.
According to a preferable technical scheme, a second limiting part is installed at one end, far away from the threaded opening, of the outer extending rod, and a plurality of second clamping grooves are formed in the circumferential outer wall of one end, close to the outer extending rod, of the middle extending rod after the outer extending rod extends.
As a preferable technical solution, the second limiting component includes a rotating plate rotatably connected to the outer protruding rod, a spring is fixedly connected to the inside of the rotating plate, an insertion shaft is fixedly connected to the lower side of the spring, the insertion shaft can be inserted into the second slot, and an inclined opening for the insertion shaft to move is formed in the outer protruding rod.
As a preferred technical scheme, extension plates are symmetrically and fixedly connected to the circumferential outer wall of one end, far away from the third motor, of the handheld box, and a first limiting part is mounted on each extension plate; the outer extending rod extends out of the handheld box completely and is provided with a first clamping groove at the same position of the first limiting part; the first limiting part comprises two clamping plates, a clamping opening with the diameter equal to that of the inner ring of the first clamping groove is formed after the two clamping plates are combined, a bolt is rotatably connected to one side, far away from the clamping opening, of the clamping plate, and the bolt penetrates through the extension plate and is in threaded connection with the extension plate.
As a preferred technical scheme, two handles are symmetrically and fixedly connected to the circumferential outer wall of the handheld box.
Preferably, a cavity for accommodating the outer protruding rod is arranged in the handheld box.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, under the driving of the driving part, the outer extension rod rotates, so that the middle extension rod which is in threaded connection with the inner part of the middle extension rod extends out, after the middle extension rod completely extends out from the inner part of the outer extension rod, threads on the inner wall of the outer extension rod are not intersected with threads on the outer wall of the middle extension rod, so that the outer extension rod can drive the middle extension rod to rotate, and the inner extension rod which is in threaded connection with the inner extension rod extends out in a reasonable mode.
Drawings
FIG. 1 is a schematic view (taken together) of the overall structure of the present invention;
FIG. 2 is a second (extended) view of the overall structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the hand-held case of the present invention;
FIG. 4 is a schematic view of the connection of the outer projecting rod and the second threaded rod of the present invention;
FIG. 5 is a schematic view showing the construction of the junction between the outer and middle extension rods in the present invention;
FIG. 6 is a schematic structural view of a second position-limiting member according to the present invention;
FIG. 7 is a cross-sectional view of FIG. 6 of the present invention;
FIG. 8 is a schematic view of the structure of the sampling part of the present invention.
In the figure:
a hand-held case 1; a grip 10; an extension plate 11; a cavity 12; a first stopper member 2; a clamping plate 20; a bolt 21; a nip 22; an outer projecting rod 3; a first card slot 30; a threaded mouth 31; a drive slot 32; a second stopper member 33; a rotating plate 330; the insertion shaft 331; a spring 332; a bezel 34; a middle extension bar 4; a second card slot 40; an inner extension rod 5; a sampling means 6; a fixed block 60; a first motor 61; a movable block 62; a second motor 63; a sampling plate 64; a first threaded rod 65; a movable disk 66; a connecting rod 67; a drive member 7; a third motor 70; the second threaded rod 71; and a latch 72.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Example 1
Referring to fig. 1-8, the present invention provides a technical solution:
a handheld simple sampler capable of being inserted into the deep part of a coal pile comprises a handheld box 1, wherein an outer extension rod 3 is installed inside the handheld box 1, the outer extension rod 3 is connected with a middle extension rod 4 through internal threads, the middle extension rod 4 is connected with an inner extension rod 5 through internal threads, and a sampling part 6 is installed at one end, far away from the handheld box 1, of the inner extension rod 5; a driving component 7 for driving the outer extending rod 3 to rotate is arranged on the hand-held box 1; under the drive of drive part 7, outer extension rod 3 rotates, thereby stretch out well extension rod 4 with threaded connection in its inside, treat well extension rod 4 and stretch out the back completely in extending out rod 3, the screw thread of outer extension rod 3 inner wall and the screw thread of well extension rod 4 outer wall are no longer crossing, extension rod 4 rotates in will driving of like this extension rod 3, can stretch out interior extension rod 5 in well extension rod 4 with threaded connection with the same reason, through such a mode, can stretch into the coal pile deep with the sampling part 6 of installation on extension rod 5 including and take a sample, and such equipment operation is comparatively simple, it is convenient to use.
Example 2
On the basis of the embodiment 1, the embodiment provides the following technical scheme: the sampling component 6 comprises a fixed block 60 fixedly connected with the inner extension rod 5, a movable block 62 is rotatably connected on the fixed block 60, a first motor 61 is installed in the fixed block 60, and the fixed block 60 is fixedly connected with an output shaft of the first motor 61 in a key joint manner; four sampling plates 64 which are closed and then take a conical shape are hinged on the movable block 62.
It should be added that the outer wall of the sampling plate 64 is toothed, so that when the sampling plate 64 rotates, the teeth on the outer wall can disperse the coal around the sampling plate, which facilitates the penetration of the sampling member 6.
It should be noted that the first motor 61 drives the movable block 62 to rotate, so as to drive the four sampling plates 64 to rotate, so as to disperse the surrounding coal blocks; when the sampling part 6 reaches the deep part of the coal pile, the sampling plate 64 is opened, a little coal blocks are taken and then combined, and then the sampling can be finished.
Example 3
On the basis of the embodiment 2, the embodiment provides the following technical scheme: the inside fixedly connected with second motor 63 of movable block 62, movable block 62 are located sampling board 64 one end and rotate and are connected with first threaded rod 65, and first threaded rod 65 is fixed with second motor 63 output shaft key joint, and threaded connection has movable dish 66 on the first threaded rod 65, installs connecting rod 67 between movable dish 66 and the sampling board 64, and connecting rod 67 and movable dish 66 and sampling board 64 inner wall are all articulated.
It should be noted that the output shaft of the second motor 63 drives the first threaded rod 65 to rotate, so as to drive the movable disc 66 to move on the first threaded rod 65, and in the moving process of the movable disc 66, the movable disc can drive the sampling plate 64 to move under the driving of the connecting rod 67, and the sampling plate 64 is opened and closed; when the movable disc 66 moves away from the second motor 63, the sampling plate 64 is opened, when the movable disc 66 moves towards the second motor 63, the sampling plate 64 is closed, namely when the sampling part 6 reaches the deep part of the coal pile, the sampling plate 64 is opened, a small amount of coal blocks are certainly dropped into the sampling plate 64 under the gravity of the coal blocks and the extrusion of the coal blocks around the coal blocks, and then the sampling plate 64 is closed to realize sampling.
Example 4
On the basis of the embodiment 1, the embodiment provides the following technical scheme: the driving part 7 comprises a third motor 70 fixedly connected to the handheld box 1, a second threaded rod 71 is rotatably connected to the inner wall of the handheld box 1, the second threaded rod 71 is in key joint with an output shaft of the third motor 70, and the outer extension rod 3 is connected with the second threaded rod 71.
It should be noted that the output shaft of the third motor 70 drives the second threaded rod 71 to rotate the outer extension rod 3.
Example 5
On the basis of the embodiment 4, the embodiment provides the following technical scheme: one end of the external extending rod 3, which is close to the second threaded rod 71, is provided with a threaded opening 31, the outer side of the threaded opening 31 is provided with a driving groove 32, one end of the second threaded rod 71, which is close to the external extending rod 3, is fixed with a plurality of clamping blocks 72, and the clamping blocks 72 can be inserted into the driving groove 32; drive slot 32 is threadedly coupled to second threaded rod 71.
It should be noted that, the second threaded rod 71 rotates to drive the outward extending rod 3 through the threaded opening 31, and can drive the outward extending rod 3 to move, and the outward extending rod 3 extends out of the handheld box 1, and when the outward extending rod 3 extends to be close to the outermost position, a part of the fixture block 72 on the second threaded rod 71 slides into the driving groove 32, so that the fixture block 72 can completely slide into the driving groove 32 under the action of external force, and thus the outward extending rod 3 can be driven to rotate through the rotation of the second threaded rod 71.
Example 6
On the basis of the embodiment 5, the embodiment provides the following technical scheme: the end, far away from the threaded opening 31, of the outer extension rod 3 is provided with a second limiting part 33, and after the outer extension rod 3 extends, the middle extension rod 4 is provided with a plurality of second clamping grooves 40 on the circumferential outer wall of the end, close to the outer extension rod 3, of the middle extension rod 4.
It should be noted that after the threads on the inner wall of the outer extension rod 3 and the threads on the outer wall of the middle extension rod 4 are not intersected, the outer extension rod 3 drives the middle extension rod 4 to rotate; under the action of the second limiting part 33, the threads on the inner wall of the outer extension rod 3 and the outer wall of the middle extension rod 4 can be prevented from bursting under strong torque.
Example 7
On the basis of the embodiment 6, the embodiment provides the following technical scheme: the second limiting part 33 includes a rotating plate 330 rotatably connected to the outer protruding rod 3, a spring 332 is fixedly connected to the inside of the rotating plate 330, an inserting shaft 331 is fixedly connected to the lower side of the spring 332, the inserting shaft 331 is insertable into the second engaging groove 40, and an inclined opening 34 for allowing the inserting shaft 331 to move is formed in the outer protruding rod 3.
It should be noted that, after the middle protruding rod 4 completely protrudes from the outer protruding rod 3, the rotating plate 330 is rotated, and the insertion shaft 331 in the rotating plate 330 passes through the outer protruding rod 3 and is inserted into the second slot 40 under the action of the spring 332, so that the middle protruding rod 4 can be fixed, that is, the middle protruding rod 4 can be driven to rotate by the outer protruding rod 3, and when the rotating plate 330 is rotated reversely, the insertion shaft 331 returns to the outer circumferential wall of the outer protruding rod 3 along the oblique opening 34, that is, the connection between the outer protruding rod 3 and the middle protruding rod 4 can be separated.
Example 8
On the basis of the implementation 4, the embodiment provides the following technical scheme: the outer wall of the circumference of one end of the handheld box 1, which is far away from the third motor 70, is symmetrically and fixedly connected with an extension plate 11, and a first limiting part 2 is arranged on the extension plate 11; the outer extending rod 3 is completely extended out of the handheld box 1 and then is positioned at the same position of the first limiting part 2, and a first clamping groove 30 is formed in the outer extending rod; the first limiting part 2 comprises a clamping plate 20, the two clamping plates 20 are combined to form a clamping opening 22 with the diameter equal to that of an inner ring of the first clamping groove 30, the clamping plate 20 is rotatably connected with a bolt 21 on one side far away from the clamping opening 22, and the bolt 21 penetrates through the extension plate 11 and is in threaded connection with the extension plate 11.
It should be noted that, after the outer extension rod 3 is completely extended, in order to prevent the outer extension rod from causing damage to the thread due to the fact that the thread in the thread opening 31 and the thread on the outer ring of the second threaded rod 71 are pressed against each other under the action of a large resistance, after the outer extension rod 3 is completely extended from the handheld box 1, the bolt 21 is screwed, the clamping plate 20 moves towards the side of the outer extension rod 3 under the driving of the bolt 21, and the clamping plate 20 is clamped in the first clamping groove 30, so that the position of the outer extension rod 3 can be fixed.
Example 9
On the basis of the embodiment 1, the embodiment provides the following technical scheme: two handles 10 are symmetrically and fixedly connected to the outer circumferential wall of the handheld box 1; the grip 10 is provided for the convenience of hand-held operation of the device of the present embodiment.
Example 10
On the basis of the embodiment 1, the embodiment provides the following technical scheme: the hand-held case 1 is provided with a cavity 12 for accommodating the external extension rod 3.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a can visit simple and easy sampler of handheld type in coal pile deep which characterized in that: the sampling device comprises a handheld box (1), wherein an outer extension rod (3) is arranged in the handheld box (1), the outer extension rod (3) is connected with a middle extension rod (4) in a threaded manner, the middle extension rod (4) is connected with an inner extension rod (5) in a threaded manner, and one end, far away from the handheld box (1), of the inner extension rod (5) is provided with a sampling component (6); and a driving part (7) for driving the outer extending rod (3) to rotate is arranged on the handheld box (1).
2. The hand-held simple sampler as claimed in claim 1 that can be inserted deep into a coal pile, wherein: the sampling component (6) comprises a fixed block (60) fixedly connected with the inner extension rod (5), a movable block (62) is rotatably connected onto the fixed block (60), a first motor (61) is installed inside the fixed block (60), and the fixed block (60) is fixedly connected with an output shaft of the first motor (61) in a key joint manner; four sampling plates (64) which are in a cone shape after being folded are hinged on the movable block (62).
3. The hand-held simple sampler as claimed in claim 2 which can be inserted deep into a coal pile, wherein: the inside fixedly connected with second motor (63) of movable block (62), movable block (62) are located sampling plate (64) one end is rotated and is connected with first threaded rod (65), first threaded rod (65) with second motor (63) output shaft key joint is fixed, threaded connection has movable dish (66) on first threaded rod (65), movable dish (66) with install connecting rod (67) between sampling plate (64), connecting rod (67) with movable dish (66) with sampling plate (64) inner wall is all articulated.
4. The hand-held simple sampler as claimed in claim 1 that can be inserted deep into a coal pile, wherein: the driving component (7) comprises a third motor (70) fixedly connected to the handheld box (1), a second threaded rod (71) is connected to the inner wall of the handheld box (1) in a rotating mode, the second threaded rod (71) is in key joint with an output shaft of the third motor (70), and the outer extension rod (3) is connected with the second threaded rod (71).
5. The hand-held simple sampler that can be inserted into the deep portion of a coal pile as claimed in claim 4, wherein: a threaded opening (31) is formed in one end, close to the second threaded rod (71), of the outward extending rod (3), a driving groove (32) is formed in the outer side of the threaded opening (31), a plurality of clamping blocks (72) are fixed to one end, close to the outward extending rod (3), of the second threaded rod (71), and the clamping blocks (72) can be inserted into the driving groove (32); the driving groove (32) is in threaded connection with the second threaded rod (71).
6. The hand-held simple sampler that can be inserted into the deep portion of a coal pile according to claim 5, wherein: a second limiting part (33) is mounted at one end, far away from the threaded opening (31), of the outer extending rod (3), and a plurality of second clamping grooves (40) are formed in the circumferential outer wall, close to the outer extending rod (3), of the middle extending rod (4) after the outer extending rod (3) extends.
7. The hand-held sampler of claim 6 that can be inserted deep into a coal pile, wherein: the second limiting part (33) comprises a rotating plate (330) rotatably connected with the outer extending rod (3), a spring (332) is fixedly connected in the rotating plate (330), an inserting shaft (331) is fixedly connected below the spring (332), the inserting shaft (331) can be inserted into the second clamping groove (40), and an inclined opening (34) for the inserting shaft (331) to move is formed in the outer extending rod (3).
8. The hand-held simple sampler that can be inserted into the deep portion of a coal pile as claimed in claim 4, wherein: the outer wall of the circumference of one end, far away from the third motor (70), of the handheld box (1) is symmetrically and fixedly connected with an extension plate (11), and a first limiting part (2) is installed on the extension plate (11); the outer extending rod (3) is completely extended out of the handheld box (1) and then is positioned at the same position of the first limiting part (2) to be provided with a first clamping groove (30); first spacing part (2) include splint (20), two splint (20) merge the back form with the clamp mouth (22) that first draw-in groove (30) inner circle diameter equals, splint (20) are keeping away from it is connected with bolt (21) to press from both sides mouthful (22) one side rotation, bolt (21) pass extend board (11) and with extend board (11) threaded connection.
9. The hand-held simple sampler as claimed in claim 1 that can be inserted deep into a coal pile, wherein: two handles (10) are symmetrically and fixedly connected to the circumferential outer wall of the handheld box (1).
10. The hand-held simple sampler as claimed in claim 1 that can be inserted deep into a coal pile, wherein: a cavity (12) for accommodating the outer extending rod (3) is arranged in the handheld box (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110933735.XA CN113758740B (en) | 2021-08-15 | 2021-08-15 | Hand-held simple sampler capable of being inserted into deep part of coal pile |
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| CN202110933735.XA CN113758740B (en) | 2021-08-15 | 2021-08-15 | Hand-held simple sampler capable of being inserted into deep part of coal pile |
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| CN113758740B CN113758740B (en) | 2024-03-15 |
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