CN115372059A - Mineral geology exploration sampling device - Google Patents

Mineral geology exploration sampling device Download PDF

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Publication number
CN115372059A
CN115372059A CN202211306834.6A CN202211306834A CN115372059A CN 115372059 A CN115372059 A CN 115372059A CN 202211306834 A CN202211306834 A CN 202211306834A CN 115372059 A CN115372059 A CN 115372059A
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China
Prior art keywords
sliding
plate
rod
vertical
slide
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Granted
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CN202211306834.6A
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Chinese (zh)
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CN115372059B (en
Inventor
刘同文
曹发伟
宋冠涵
于广婷
徐进达
薛立明
潘懋
万剑华
刘善伟
李魁星
李涛
何祖臣
段越洋
张志进
张建芳
刘嘉
许传新
宋慧
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Shandong Institute of Geological Surveying and Mapping
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Shandong Institute of Geological Surveying and Mapping
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Priority to CN202211306834.6A priority Critical patent/CN115372059B/en
Publication of CN115372059A publication Critical patent/CN115372059A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/04Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30Assessment of water resources

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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 mineral geological exploration sampling device, which relates to the technical field of mineral geological exploration equipment, and adopts the technical scheme that the device comprises an outer support, an inner support and a plurality of samplers arranged on the inner support, wherein drill bits are arranged at the bottoms of the samplers; the inner support comprises a support plate and slide rails arranged at two ends of one side of the support plate, and vertical slide grooves are formed in the side walls of the slide rails. The invention has the beneficial effects that: the device drives the second fixing block to ascend or descend through the rotation of the second screw rod, so that the height of the whole inner support is adjusted; then, the screw rod rotates to drive the sliding plate to move up and down in the vertical sliding groove of the sliding rail, so that the distance between the plurality of samplers can be adjusted as required, and after the distance between the samplers is adjusted, the height of the whole inner support can be adjusted again as required; then the motor starts, and the collection work of many places soil sample can be carried out in step to a plurality of samplers, has improved collection efficiency.

Description

Mineral geology exploration sampling device
Technical Field
The invention relates to the technical field of mineral geological exploration equipment, in particular to a mineral geological exploration sampling device.
Background
The geological mineral exploration is based on the geological science theory, and on the basis of occupying a large amount of field geological observation and collecting and arranging related geological data, the geological survey, the physical exploration, the pit drilling exploration engineering and other comprehensive geological means and methods are adopted to obtain reliable geological mineral information data.
In the work of geological survey, generally need use the earth boring machine to bore soil to the soil, then carry out sample detection to the below ground earth, current sampling device often needs artifical drilling, at first, drilling operation difficulty can't gather the soil sample of drilling in-process, current sample work only has a sampler usually, can't carry out the soil sample collection of two places in step when gathering, and it has certain degree of difficulty to gather the soil sample.
Disclosure of Invention
In order to achieve the above object, the present invention provides a sampling device for mineral geologic prospecting.
The technical scheme is that the sampler comprises an outer support, an inner support and a plurality of samplers arranged on the inner support, wherein drill bits are arranged at the bottoms of the samplers;
the inner support comprises a supporting plate and sliding rails arranged at two ends of one side of the supporting plate, vertical sliding grooves are formed in the side walls of the sliding rails, a sliding plate is connected between the two sliding grooves in a sliding mode, an upper horizontal sliding rod and a lower horizontal sliding rod which are parallel to each other are fixedly arranged between the two sliding rails, a plurality of L-shaped rods are connected to the horizontal sliding rods in a sliding mode, a plurality of guide grooves are formed in the sliding plate, limiting rods are fixedly arranged on the side walls of the L-shaped rods, blocking pieces are arranged at the outer end portions of the limiting rods, the diameters of the blocking pieces are larger than those of the limiting rods, the limiting rods are connected with the guide grooves in a sliding mode, and the sampler is fixedly connected to one side of the bottoms of the L-shaped rods.
The top and the bottom of the sliding rail are respectively provided with a transverse baffle, and the length of the baffle in the horizontal direction is greater than that of the sliding rail in the horizontal direction;
a first screw rod and a first slide rod are respectively arranged between the baffles at the top and the bottom of the slide rail on the same side, first fixing blocks are arranged at two ends of the side wall, away from the support plate, of the slide plate, vertical threaded holes are formed in the first fixing blocks, vertical through holes are formed in the other fixing blocks, the first screw rods are in threaded connection with the threaded holes, and the first slide rods are in sliding connection with the through holes.
The upper end and the lower end of the first screw rod are respectively rotatably connected with the baffle, and the upper end and the lower end of the first sliding rod are respectively fixedly connected with the baffle.
The sliding plate is characterized in that the sliding groove in the side wall of the sliding rail is T-shaped, a T-shaped sliding block is fixedly arranged on one side, close to the sliding rail, of the sliding plate, and the T-shaped sliding block is in sliding fit with the sliding groove.
The upper surface and the lower surface of the horizontal sliding rod are provided with horizontal strip-shaped grooves, the L-shaped rod comprises a vertical plate and a transverse plate arranged at the bottom of the vertical plate, one side of the vertical plate close to the horizontal sliding rod is provided with an upper clamping block and a lower clamping block, the clamping blocks are arranged in a reverse C shape, and the C-shaped openings of the clamping blocks are matched with the strip-shaped grooves on the upper part and the lower part of the horizontal sliding rod in a sliding manner;
the end fixing of L shape pole diaphragm is provided with the pole setting, the fixed motor one that sets up in top of pole setting lateral wall, the output of motor one sets up the sampler, be provided with the sampler spacing ring on the pole setting lateral wall, the sampler slides and cup joints in the sampler spacing ring.
The guide grooves are arranged in a central symmetry manner relative to the center of the sliding plate, and the bottoms of the left guide groove and the right guide groove which are in central symmetry are obliquely arranged towards the center of the sliding plate.
The outer support comprises a bottom plate and a vertical plate arranged on the upper surface of the bottom plate, a rectangular frame is arranged on one side wall of the vertical plate, and two fixing plates are arranged on two sides of the bottom plate;
threaded holes are formed in the end portions of the fixing plates, threaded rods are connected with the threaded holes in an internal thread mode, the bottoms of the threaded rods are in a sharp cone shape, and rotating blocks are arranged at the tops of the threaded rods;
an electric push rod is arranged on the fixing plate on one side of the inner support, the fixed end of the electric push rod is fixedly connected with the upper surface of the fixing plate, a top plate is fixedly arranged at the top of the telescopic end of the electric push rod, and the top plate corresponds to the baffle at the bottom of the sliding rail up and down.
A second screw rod is arranged at one end between the upper inner wall and the lower inner wall of the rectangular frame, a second sliding rod is arranged at the other end of the rectangular frame, a second fixing block is arranged on one side of the supporting plate, which faces the vertical plate, a vertical threaded hole is formed in the first fixing block, a vertical through hole is formed in the other fixing block, the second screw rod is in threaded connection with the threaded hole, and the second sliding rod is in sliding connection with the through hole;
the upper end and the lower end of the second screw rod are respectively and rotatably connected with the upper inner wall and the lower inner wall of the rectangular frame, and the upper end and the lower end of the second slide rod are respectively and fixedly connected with the upper inner wall and the lower inner wall of the rectangular frame;
and the side wall of the second fixing block is in sliding connection with the inner wall of the rectangular frame.
The first screw rod and the second screw rod are respectively driven by a motor to rotate, which is the prior art and is not described herein again.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the scheme provides a mineral geological exploration sampling device, a second screw rod rotates to drive a second fixing block on the same side to ascend or descend, so that the second fixing block on the other side is driven to slide up and down on a second sliding rod, and the height of the whole inner support is adjusted; then, the screw rod rotates to drive the sliding plate to move up and down in the vertical sliding groove of the sliding rail, so that the distance between the plurality of samplers can be adjusted as required, and after the distance between the samplers is adjusted, the height of the whole inner support can be adjusted again as required; then, when the motor is started, the plurality of samplers can synchronously collect a plurality of soil samples, so that the collection efficiency is improved, and the difficulty of mineral geological exploration is reduced;
the screw rod is rotated to make the tapered bottom of the screw rod prick into the soil, thereby ensuring the stability of the whole device in the working process.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of a hidden sliding plate according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a sliding plate according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a back portion of an inner rack according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of an outer bracket according to an embodiment of the present invention.
Wherein the reference numbers are: 101. a vertical plate; 102. a rectangular frame; 103. a fixing plate; 104. a screw; 201. a support plate; 202. a slide rail; 203. a sliding plate; 204. a horizontal sliding bar; 205. an L-shaped rod; 206. a limiting rod; 207. a baffle plate; 208. a T-shaped slide block; 209. a strip-shaped groove; 210. a clamping block; 211. a baffle plate; 3. a sampler; 4. a drill bit; 5. a first screw rod; 6. a first sliding rod; 7. a first fixing block; 8. a first motor; 9. a sampler limit ring; 10. a guide groove; 11. an electric push rod; 12. a second fixing block; 13. a second screw rod; 14. and a second sliding rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
Referring to fig. 1 to 5, the invention provides a mineral geological survey sampling device, which comprises an outer support, an inner support and a plurality of samplers 3 arranged on the inner support, wherein the bottoms of the samplers 3 are provided with drill bits 4;
the inner support comprises a support plate 201 and slide rails 202 arranged at two ends of one side of the support plate 201, vertical slide grooves are formed in the side walls of the slide rails 202, a sliding plate 203 is connected between the two slide grooves in a sliding mode, an upper horizontal slide bar 204 and a lower horizontal slide bar 204 which are parallel to each other are fixedly arranged between the two slide rails 202, a plurality of L-shaped rods 205 are connected on the horizontal slide bars 204 in a sliding mode, a plurality of guide grooves 10 are formed in the sliding plate 203, limiting rods 206 are fixedly arranged on the side walls of the L-shaped rods 205, blocking pieces 211 are arranged at the outer end portions of the limiting rods 206, the diameter of the blocking pieces 211 is larger than that of the limiting rods 206, the limiting rods 206 are connected with the guide grooves 10 in a sliding mode, and samplers 3 are fixedly connected to one side of the bottoms of the L-shaped rods 205.
The top and the bottom of the sliding rail 202 are both provided with transverse baffles 207, and the length of the baffles 207 in the horizontal direction is greater than that of the sliding rail 202 in the horizontal direction;
a first screw rod 5 and a first slide rod 6 are arranged between the baffle plates 207 at the top and the bottom of the same side sliding rail 202 respectively, first fixing blocks 7 are arranged at two ends of the side wall, away from the supporting plate 201, of the sliding plate 203, vertical threaded holes are formed in one first fixing block 7, vertical through holes are formed in the other first fixing block 7, the first screw rod 5 is in threaded connection with the threaded holes, and the first slide rod 6 is in sliding connection with the through holes.
The upper end and the lower end of the first screw rod 5 are respectively rotatably connected with the baffle 207, and the upper end and the lower end of the first slide rod 6 are respectively fixedly connected with the baffle 207.
The sliding groove on the side wall of the sliding rail 202 is T-shaped, a T-shaped sliding block 208 is fixedly arranged on one side of the sliding plate 203 close to the sliding rail 202, and the T-shaped sliding block 208 is in sliding fit with the sliding groove.
The upper surface and the lower surface of the horizontal sliding rod 204 are both provided with horizontal strip-shaped grooves 209, the L-shaped rod 205 comprises a vertical plate and a transverse plate arranged at the bottom of the vertical plate, one side of the vertical plate close to the horizontal sliding rod 204 is provided with an upper fixture block 210 and a lower fixture block 210, the fixture blocks 210 are arranged in a reverse C shape, and the C-shaped openings of the fixture blocks 210 are matched with the upper strip-shaped grooves 209 and the lower strip-shaped grooves 209 of the horizontal sliding rod 204 in a sliding manner;
the end fixing of L shape pole 205 diaphragm is provided with the pole setting, and the top of pole setting lateral wall is fixed to be set up motor 8, and the output of motor 8 sets up sampler 3, is provided with sampler spacing ring 9 on the pole setting lateral wall, and sampler 3 slides and cup joints in sampler spacing ring 9.
The guide grooves 10 are arranged in a central symmetry with respect to the center of the sliding plate 203, and the bottoms of the two guide grooves 10 are arranged in an inclined manner toward the center of the sliding plate 203.
The outer support comprises a bottom plate and a vertical plate 101 arranged on the upper surface of the bottom plate, a rectangular frame 102 is arranged on one side wall of the vertical plate 101, and two fixing plates 103 are arranged on two sides of the bottom plate;
threaded holes are formed in the end portions of the fixing plates 103, threaded rods 104 are connected with the threaded holes in an internal thread mode, the bottoms of the threaded rods 104 are arranged to be sharp cones, and rotating blocks are arranged on the tops of the threaded rods 104;
an electric push rod 11 is arranged on the fixing plate 103 on one side of the inner support, the fixed end of the electric push rod 11 is fixedly connected with the upper surface of the fixing plate 103, a top plate 15 is fixedly arranged at the top of the telescopic end of the electric push rod 11, and the top plate 15 corresponds to the baffle 207 at the bottom of the sliding rail 202 up and down.
A second screw rod 13 is arranged at one end between the upper inner wall and the lower inner wall of the rectangular frame 102, a second sliding rod 14 is arranged at the other end, a second fixing block 12 is arranged on one side, facing the vertical plate 101, of the supporting plate 201, a vertical threaded hole is formed in the second fixing block 12, a vertical through hole is formed in the second fixing block 12, the second screw rod 13 is in threaded connection with the threaded hole, and the second sliding rod 14 is in sliding connection with the through hole;
the upper end and the lower end of the second screw rod 13 are respectively and rotatably connected with the upper inner wall and the lower inner wall of the rectangular frame 102, and the upper end and the lower end of the second sliding rod 14 are respectively and fixedly connected with the upper inner wall and the lower inner wall of the rectangular frame 102;
the side wall of the second fixing block 12 is connected with the inner wall of the rectangular frame 102 in a sliding mode.
The first screw 5 and the second screw 13 are respectively driven by a motor to rotate, which is prior art and will not be described herein.
When the device is used, the screw 104 is rotated to enable the pointed conical bottom of the screw to be pricked into soil, so that the stability of the device in the working process is ensured, the screw II 13 rotates to drive the fixing block II 12 on the same side to ascend or descend, so that the fixing block II 12 on the other side is driven to slide up and down on the sliding rod II 14, and the height of the whole inner support is adjusted;
then, the height of the sampler 3 is adjusted, and the screw rod I5 rotates to drive the fixed block I7 on the same side to ascend or descend, so that the fixed block I7 on the other side is driven to slide up and down on the slide rod I6, and the slide plate 203 moves up and down in the vertical slide groove of the slide rail 202;
when the sliding plate 203 moves upwards, the spacing between the plurality of limiting rods 206 is gradually increased due to the guiding function of the guide groove 10 and the sliding connection of the fixture blocks 210 and the strip-shaped grooves 209, so that the spacing between the samplers 3 fixed at the bottom of the L-shaped rod 205 is increased;
when the sliding plate 203 moves downwards, the spacing between the plurality of limiting rods 206 is gradually reduced due to the guiding function of the guide groove 10 and the sliding connection of the fixture blocks 210 and the strip-shaped grooves 209, so that the spacing between the samplers 3 fixed at the bottom of the L-shaped rod 205 is reduced;
after the distance between the samplers 3 is adjusted, the height of the whole inner support can be adjusted according to actual needs;
then the motor 8 is started, and the sampler 3 can synchronously collect a plurality of soil samples.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. A mineral geological survey sampling device is characterized by comprising an outer support, an inner support and a plurality of samplers (3) arranged on the inner support, wherein drill bits (4) are arranged at the bottoms of the samplers (3);
the inner support comprises a support plate (201) and sliding rails (202) arranged at two ends of one side of the support plate (201), vertical sliding grooves are formed in the side walls of the sliding rails (202), sliding plates (203) are connected between the two sliding grooves in a sliding mode, an upper horizontal sliding rod (204) and a lower horizontal sliding rod (204) which are parallel to each other are fixedly arranged between the two sliding rails (202), a plurality of L-shaped rods (205) are connected onto the horizontal sliding rods (204) in a sliding mode, a plurality of guide grooves (10) are formed in the sliding plates (203), limiting rods (206) are fixedly arranged on the side walls of the L-shaped rods (205), blocking pieces (211) are arranged at the outer end portions of the limiting rods (206), the diameter of the blocking pieces (211) is larger than that of the limiting rods (206), the limiting rods (206) are connected with the guide grooves (10) in a sliding mode, and one side of the bottoms of the L-shaped rods (205) is fixedly connected with the sampler (3).
2. The mineral geological survey sampling device according to claim 1, characterized in that the top and bottom of the sliding rail (202) are each provided with a transverse baffle (207), the length of the baffle (207) in the horizontal direction being greater than the length of the sliding rail (202) in the horizontal direction;
the sliding plate is characterized in that a first screw rod (5) and a first sliding rod (6) are arranged between the top and the bottom of the baffle (207) on the same side of the sliding rail (202), first fixing blocks (7) are arranged at two ends of the side wall, far away from the supporting plate (201), of the sliding plate (203), vertical threaded holes are formed in the first fixing blocks (7), vertical through holes are formed in the other fixing blocks (7), the first screw rod (5) is in threaded connection with the threaded holes, and the first sliding rod (6) is in sliding connection with the through holes.
3. The mineral geological survey sampling device of claim 2, wherein the upper and lower ends of the first screw rod (5) are rotatably connected with the baffle (207), and the upper and lower ends of the first slide rod (6) are fixedly connected with the baffle (207).
4. The mineral geologic survey sampling device of claim 1, wherein the side walls of the slide rails (202) have T-shaped sliding grooves, and the slide plate (203) has a T-shaped slide block (208) fixedly disposed on the side near the slide rails (202), and the T-shaped slide block (208) is slidably engaged with the sliding grooves.
5. The mineral geological survey sampling device of claim 1, wherein the horizontal sliding rod (204) is provided with horizontal strip-shaped grooves (209) on the upper surface and the lower surface, the L-shaped rod (205) comprises a vertical plate and a transverse plate arranged at the bottom of the vertical plate, one side of the vertical plate close to the horizontal sliding rod (204) is provided with an upper fixture block (210) and a lower fixture block (210), the fixture blocks (210) are arranged in an opposite C shape, and the C-shaped openings of the fixture blocks (210) are matched with the upper and lower strip-shaped grooves (209) of the horizontal sliding rod (204) in a sliding manner;
the end fixing of L shape pole (205) diaphragm is provided with the pole setting, the fixed motor (8) that sets up in top of pole setting lateral wall, the output setting of motor (8) sampler (3), be provided with sampler spacing ring (9) on the pole setting lateral wall, sampler (3) slide to cup joint in sampler spacing ring (9).
6. The mineral geological survey sampling device according to claim 1, wherein a plurality of said guide grooves (10) are arranged in central symmetry with respect to the center of the sliding plate (203), and the bottoms of the two guide grooves (10) are arranged in inclined manner toward the center of the sliding plate (203).
7. The mineral geological survey sampling device of claim 2, wherein the outer support comprises a bottom plate and a vertical plate (101) arranged on the upper surface of the bottom plate, a rectangular frame (102) is arranged on one side wall of the vertical plate (101), and two fixing plates (103) are arranged on two sides of the bottom plate;
threaded holes are formed in the end portions of the fixing plates (103), threaded rods (104) are connected to the threaded holes in an internal thread mode, and the bottoms of the threaded rods (104) are arranged to be pointed cones;
an electric push rod (11) is arranged on the fixing plate (103) located on one side of the inner support, the fixed end of the electric push rod (11) is fixedly connected with the upper surface of the fixing plate (103), a top plate (15) is fixedly arranged at the top of the telescopic end of the electric push rod (11), and the top plate (15) corresponds to the baffle (207) at the bottom of the sliding rail (202) in the vertical direction.
8. The mineral geological survey sampling device of claim 7, wherein a second screw rod (13) is arranged at one end between the upper inner wall and the lower inner wall of the rectangular frame (102), a second slide rod (14) is arranged at the other end of the rectangular frame, two fixing blocks (12) are arranged on one sides of the supporting plates (201) facing the vertical plate (101), a vertical threaded hole is formed in one fixing block (12), a vertical through hole is formed in the other fixing block (12), the second screw rod (13) is in threaded connection with the threaded hole, and the second slide rod (14) is in sliding connection with the through hole.
9. The mineral geological survey sampling device of claim 8, wherein the upper and lower ends of the second screw rod (13) are rotatably connected with the upper and lower inner walls of the rectangular frame (102), respectively, and the upper and lower ends of the second slide rod (14) are fixedly connected with the upper and lower inner walls of the rectangular frame (102), respectively;
and the side wall of the second fixed block (12) is in sliding connection with the inner wall of the rectangular frame (102).
CN202211306834.6A 2022-10-25 2022-10-25 Mineral geology investigation sampling device Active CN115372059B (en)

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Cited By (2)

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CN115791443A (en) * 2023-02-20 2023-03-14 国网辽宁省电力有限公司 Bending test instrument for high-insulation composite material
CN116718411A (en) * 2023-05-11 2023-09-08 生态环境部南京环境科学研究所 Multi-sample collection device for collecting, processing and preserving soil samples

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CN103398868A (en) * 2013-01-11 2013-11-20 河北科技大学 Specific-depth soil layer soil sample acquisition apparatus and acquisition method thereof
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CN112255011A (en) * 2020-11-05 2021-01-22 丁相军 Depth-measurable geotechnical sampling device and method for geotechnical engineering investigation
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CN115791443B (en) * 2023-02-20 2023-04-18 国网辽宁省电力有限公司 High-insulation composite material bending test instrument
CN116718411A (en) * 2023-05-11 2023-09-08 生态环境部南京环境科学研究所 Multi-sample collection device for collecting, processing and preserving soil samples

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