Rock sampling device for geotechnical investigation

Abstract

The invention discloses a rock sampling device for geotechnical investigation, the rock sampling device comprises a device base, a lifting assembly and a sampling assembly, the lifting assembly is arranged on one side of the device base, the lifting assembly comprises a support frame, and the sampling assembly is arranged on the support frame in a liftable manner; the sampling assembly comprises a sampling drilling barrel, telescopic jacking blocks, a telescopic driving device and a material discharging assembly, a plurality of telescopic cavities are formed in the bottom of the inner wall of the sampling drilling barrel in a surrounding mode, the telescopic jacking blocks are movably arranged in the telescopic cavities, and the material discharging assembly is arranged at the inner top of the sampling drilling barrel in a liftable mode; the telescopic driving device is arranged on the side wall of the sampling drill barrel in a liftable mode, the telescopic driving device and the material discharging assembly are in meshing linkage through a linkage gear, the telescopic ejection block is controlled to stretch out and retract into the telescopic cavity, and the linkage gear is distributed at the top of the sampling drill barrel in a surrounding mode. The invention belongs to the technical field of geological exploration, and particularly relates to a rock sampling device for geotechnical investigation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of geological exploration, and particularly relates to a rock sampling device for geotechnical investigation. BACKGROUND

[0002] Geological mineral exploration sampling is an important link in geological exploration, which involves collecting samples from soil, ore bodies and rocks. The purpose of geological mineral exploration is to observe and study rock structure, structure, mineral composition and its paragenetic combination, study mineral metamorphism and alteration phenomena, and determine the name of rock and mineral, so as to study the quality, physical and chemical properties of mineral products. The core purpose of geological mineral exploration sampling is to provide data basis for deposit evaluation, reserve calculation and solving problems of geology, mining, smelting and comprehensive utilization of mineral products.

[0003] In the related art, when the rock mineral is explored and sampled, a pipe type drill bit is used to drill a hole downward on the surface of the rock. After the pipe type drill bit reaches a certain depth, the rock sample core fills the inside, and then the sampling cylinder can be removed from the rock. The rock sample core in the sampling cylinder is taken out, and the sampling work is completed. However, when the rock sample core is cut off and taken out from the drill hole, a large torque or pulling force often needs to be applied, which not only increases the equipment load, but also may cause damage to the rock sample core or structure. Moreover, friction is generated between the rock sample core and the sampling cylinder after being taken out, and the rock sample core is difficult to guide out of the sampling cylinder. At this time, the staff needs to continuously knock the sampling cylinder to generate vibration, so that the rock sample core can slide out of the sampling cylinder. This method not only increases the labor intensity and reduces the sampling efficiency, but also causes the rock sample core to be impacted by the vibration generated by the knocking, so that the whole rock sample core is broken or crushed, and the integrity of the rock sample core is damaged. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a rock sampling device for geotechnical investigation, which effectively solves the above problems.

[0005] The technical scheme adopted by the present application is as follows: the present application provides a rock sampling device for geotechnical investigation, which comprises a device base, a lifting assembly and a sampling assembly. The lifting assembly is arranged on one side of the device base. The lifting assembly comprises a support frame. The sampling assembly is arranged on the support frame in a lifting manner. The sampling assembly comprises a sampling drill cylinder, a telescopic top block, a telescopic driving device and a material discharging assembly. A plurality of telescopic cavities are arranged around the inner wall bottom of the sampling drill cylinder. The telescopic top block is movably arranged in each telescopic cavity. The material discharging assembly is arranged on the inner top of the sampling drill cylinder in a lifting manner. The telescopic driving device is arranged on the side wall of the sampling drill cylinder in a lifting manner. The telescopic driving device and the material discharging assembly are connected through meshing linkage gears. The linkage gears are arranged around the top of the sampling drill cylinder.

[0006] Further, the support frame is welded to one side of the device base, the other side of the device base is provided with a sampling area, the lifting assembly further comprises a lifting motor, a lead screw and a discharging pressure plate, wherein the lead screw is vertically arranged on the support frame, one end of the lead screw is connected to the output end of the lifting motor, the lifting motor is bolted to the top of the support frame, and the discharging pressure plate is fixedly connected to one end of the top of the support frame.

[0007] Further, the sampling assembly further comprises a lifting module, a driving motor and a linkage pressing device, the lifting module is threadedly connected with the lead screw, one end of the lifting module is provided with a protruding portion, the protruding portion is slidably connected with a limiting sliding groove, the limiting sliding groove is provided on one side surface of the support frame, the other end of the lifting module is connected with a mounting plate, the driving motor is bolted to the bottom of the mounting plate, the output end of the driving motor is connected to the top center shaft of the sampling drill cylinder, and the linkage pressing device is arranged on the mounting plate in a lifting manner, and the bottom of the linkage pressing device is movably connected with the material discharging assembly.

[0008] Further, the material discharging assembly comprises a discharging upper pressure plate, a pressure rod, a lower pressure plate, a rotating pressure plate and a limiting block, the pressure rod is arranged around the top of the sampling drill cylinder, the discharging upper pressure plate is movably arranged above the sampling drill cylinder, the bottom of the discharging upper pressure plate is fixedly connected with one end of the pressure rod, the bottom of the discharging upper pressure plate is further provided with supporting legs, the supporting legs are alternately arranged with the pressure rod, the discharging upper pressure plate stands on the upper surface of the sampling drill cylinder through the supporting legs, the lower pressure plate is movably arranged in the sampling drill cylinder, the upper surface of the lower pressure plate is fixedly connected with the other end of the pressure rod, the rotating pressure plate is rotatably connected with the bottom of the lower pressure plate, the rotating pressure plate is slidably connected with the inner wall of the sampling drill cylinder, and the limiting block is arranged on the upper surface of the lower pressure plate.

[0009] Further, the telescopic driving device comprises an annular support, a driving rack, a push rod and a driving part, the annular support is arranged on the top of the sampling drill cylinder, the inner diameter of the annular support is greater than the outer diameter of the discharging upper pressure plate, the driving rack is arranged around the bottom of the annular support, one end of the driving rack is fixedly connected with the annular support, the other end of the driving rack is fixedly connected with one end of the push rod, the driving rack is movably arranged in a first telescopic cavity, the first telescopic cavity is arranged around the inner wall of the sampling drill cylinder, the driving rack is meshed with one side of a linkage gear, the other side of the linkage gear is meshed with a rack part, the rack part is arranged on the lower part of the pressure rod, the other end of the push rod is fixedly connected with the driving part, the push rod is movably arranged in a second telescopic cavity, the second telescopic cavity is in communication with the bottom of the first telescopic cavity and extends downward along the inner wall of the sampling drill cylinder to a telescopic cavity, and the telescopic cavity is arranged around the bottom of the inner wall of the sampling drill cylinder and opens inward.

[0010] Further, the driving part comprises a support part and telescopic racks, the telescopic racks are symmetrically arranged at two ends of the support part, the telescopic racks at the two ends are respectively engaged with first gears, the first gears are symmetrically arranged at two sides of a second gear, the first gears are coaxially connected with the second gear and are rotatably arranged in a telescopic cavity, the second gear arranged in the middle is engaged with a top block rack, the top block rack is arranged in the middle on an upper surface of a telescopic top block, the telescopic top block is movably arranged in the telescopic cavity and is located below the second gear, the telescopic racks are arranged on both sides of one end of the telescopic top block, the telescopic top block is provided with an extrusion part at the other end, the bottom of the telescopic top block is provided with a sliding groove, a sliding rail is slidably connected to the sliding groove, and the sliding rail is fixedly arranged on an inner ground surface of the telescopic cavity.

[0011] Further, the linkage pressing device comprises a butt joint pressing plate, a butt joint top plate, a support rod and a sliding rod, the sliding rod is movably arranged on the mounting plate, the sliding rod is distributed on both sides of the driving motor, the butt joint top plate is arranged above the mounting plate, one end of the sliding rod is fixedly connected with the butt joint top plate, the other end of the sliding rod is threadedly connected with one end of an extension plate, a spring is sleeved on the sliding rod between the extension plate and the mounting plate, one end of the support rod is fixedly connected with the other end of the extension plate, the extension plate is symmetrically arranged on both sides of the driving motor, the other end of the support rod is fixedly connected with the butt joint pressing plate, the butt joint pressing plate and the material discharging upper pressing plate are the same in diameter, and the butt joint pressing plate and the material discharging upper pressing plate are in elastic abutment.

[0012] Further, a collecting barrel is movably arranged on the device base, sliding blocks are rotatably connected to both sides of the collecting barrel, the collecting barrel is connected with the moving guide rails through the sliding blocks, the moving guide rails are symmetrically arranged on both sides of the sampling area, and a supporting vertical plate is arranged at one end of the sampling area.

[0013] Further, a discharging plate is movably arranged in the collecting barrel, a pushing handle is fixedly connected to one end of the discharging plate, one end of the pushing handle is movably arranged in a discharging sliding groove, the discharging sliding groove is arranged on the side wall of the collecting barrel, and operation handles are fixedly connected to the top of both sides of the collecting barrel.

[0014] The beneficial effects achieved by the above structure are as follows:

[0015] 1. Through the telescopic top blocks distributed around the inner wall of the sampling drill cylinder, the telescopic driving device and the material discharging assembly, the sampling drill cylinder can be filled with rock samples and moved up when the sampling drill cylinder drills the rock, until the maximum sampling is reached, the material discharging assembly controls the telescopic driving assembly to push out the telescopic top blocks under the cooperation of the linkage gear, so that the rock sample core bottom in the sampling drill cylinder is surrounded and extruded by the surrounding telescopic top blocks, and the telescopic top blocks are extruded and subjected to the concentrated stress and shear force generated when the sampling drill cylinder rotates, so that the rock sample core is cut off and limited, and the rock sample core is easily taken out.

[0016] 2. By setting the linkage down-pressing device above the material discharging assembly to apply elastic down-pressing force to it, after the sampling assembly takes out the rock sample core and continuously lifts up, the discharging pressure plate at the top of the support frame serves as the trigger end, makes the abutting top plate lift up and abut against it, and then under the relative action, applies down-pressing force to the discharging upper pressure plate, and then the down-pressing plate and the rotating pressure plate push the rock sample core in the sampling drill cylinder downwards to discharge it from the sampling drill cylinder, which brings convenience for manual knocking of the discharged material.

[0017] 3. The multiple distributed telescopic top blocks not only serve as the rock sample core cutting function, but also limit and support the bottom of the cut rock sample core to prevent the rock sample core from falling off from the inside of the sampling drill cylinder during the lifting process, which brings guarantee for the smooth taking out of the rock sample core.

[0018] 4. The collection barrel arranged on the device base can be flexibly moved in the sampling area under the cooperation of the moving guide rail, and can be quickly moved under the sampling drill cylinder after sampling to receive the rock sample core, and can be moved to the other end of the moving guide rail to be rotated and poured after the receiving is completed, and cooperates with the discharging plate arranged therein to discharge the rock sample core, which is convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective structural schematic view of a rock sampling device for geotechnical investigation proposed by the present application;

[0020] Figure 2 It is a perspective structural view of a sampling assembly of a rock sampling device for geotechnical investigation proposed by the present application;

[0021] Figure 3 It is a perspective structural view of a material discharging assembly of a rock sampling device for geotechnical investigation proposed by the present application;

[0022] Figure 4 It is a perspective structural view of a telescopic driving device of a rock sampling device for geotechnical investigation proposed by the present application;

[0023] Figure 5 It is a perspective structural view of a linkage down-pressing device of a rock sampling device for geotechnical investigation proposed by the present application;

[0024] Figure 6 It is a partial structural sectional view of a sampling drill cylinder of a rock sampling device for geotechnical investigation proposed by the present application;

[0025] Figure 7 It is a structural schematic view of a telescopic top block of a rock sampling device for geotechnical investigation proposed by the present application;

[0026] Figure 8An enlarged view of the structure at mark B of the rock sampling device for geotechnical investigation according to the present application;

[0027] Figure 9 A sectional view of the structure of the sampling drill cylinder of the rock sampling device for geotechnical investigation according to the present application;

[0028] Figure 10 An enlarged view of the structure at mark A of the rock sampling device for geotechnical investigation according to the present application;

[0029] Figure 11 A sectional view of the internal structure of the sampling assembly of the rock sampling device for geotechnical investigation according to the present application;

[0030] Figure 12 A perspective view of the lifting assembly of the rock sampling device for geotechnical investigation according to the present application;

[0031] Figure 13 A perspective view of the collection bucket of the rock sampling device for geotechnical investigation according to the present application.

[0032] 1, device base; 2, sampling assembly; 3, collection bucket; 4, lifting assembly; 5, support frame; 6, limiting sliding groove; 7, lifting motor; 8, lead screw; 9, material discharge pressing plate; 10, sampling drill cylinder; 11, driving motor; 12, lifting module; 13, mounting plate; 14, telescopic driving device; 15, material discharge assembly; 16, linkage pressing device; 17, annular support; 18, driving rack; 19, push rod; 20, driving part; 21, material discharge upper pressing plate; 22, supporting leg; 23, pressing rod; 24, rack part; 25, lower pressing plate; 26, limiting block; 27, rotating pressing plate; 28, butt joint pressing plate; 29, support rod; 30, extension plate; 31, spring; 32, sliding rod; 33, butt joint top plate; 34, telescopic rack; 35, support part; 36, first gear; 37, second gear; 38, telescopic top block; 39, extrusion part; 40, sliding groove; 41, sliding rail; 42, telescopic cavity; 43, top block rack; 44, moving guide rail; 45, first telescopic cavity; 46, second telescopic cavity; 47, sampling area; 48, supporting vertical plate; 50, linkage gear; 51, material discharge sliding groove; 52, material discharge plate; 53, pushing handle; 54, sliding block; 55, operation handle; 56, protruding part.

[0033] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of this specification, illustrate embodiments of the present application, and together with the description serve to explain the present application, and do not limit the present application in any manner. DETAILED DESCRIPTION

[0034] Clearly, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments; based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] As shown in Figures 1-13 The present application provides a rock sampling device for geotechnical investigation, which comprises a device base 1, a lifting assembly 4 and a sampling assembly 2, the lifting assembly 4 is arranged on one side of the device base 1, the lifting assembly 4 comprises a support frame 5, the sampling assembly 2 is arranged on the support frame 5 in a lifting manner, the sampling assembly 2 comprises a sampling drill cylinder 10, a telescopic top block 38, a telescopic driving device 14 and a material discharging assembly 15, a plurality of telescopic cavities 42 are arranged around the inner wall bottom of the sampling drill cylinder 10, the telescopic top block 38 is movably arranged in each telescopic cavity 42, the material discharging assembly 15 is arranged on the inner top of the sampling drill cylinder 10 in a lifting manner, the telescopic driving device 14 is arranged on the side wall of the sampling drill cylinder 10 in a lifting manner, the telescopic driving device 14 and the material discharging assembly 15 are engaged through a linkage gear 50, the linkage gear 50 is arranged around the top of the sampling drill cylinder 10.

[0037] In an embodiment of the present application, the support frame 5 is welded and fixed with one side of the device base 1, the other side of the device base 1 is provided with a sampling area 47, the lifting assembly 4 further comprises a lifting motor 7, a lead screw 8 and a material discharging pressing plate 9, wherein the lead screw 8 is vertically arranged on the support frame 5, one end of the lead screw 8 is connected with the output end of the lifting motor 7, the lifting motor 7 is bolted and fixed on the top of the support frame 5, and the material discharging pressing plate 9 is fixedly connected with one end of the top of the support frame 5.

[0038] In one embodiment of the present application, the sampling assembly 2 further comprises a lifting module 12, a driving motor 11 and a linkage pressing device 16, the lifting module 12 is threadedly connected with the lead screw 8, one end of the lifting module 12 is provided with a protruding part 56, the protruding part 56 is slidably connected with the limiting sliding groove 6, the limiting sliding groove 6 is opened on one side surface of the supporting frame 5, the other end of the lifting module 12 is connected with a mounting plate 13, the driving motor 11 is bolted with the bottom of the mounting plate 13, the output end of the driving motor 11 is connected with the top center shaft of the sampling drill cylinder 10, the linkage pressing device 16 is liftably arranged on the mounting plate 13, and the bottom of the linkage pressing device 16 is movably connected with the material discharging assembly 15.

[0039] In one embodiment of the present application, the material discharging assembly 15 comprises a discharging upper pressing plate 21, a pressing rod 23, a lower pressing plate 25, a rotating pressing plate 27 and a limiting block 26, the pressing rod 23 is arranged around the top of the sampling drill cylinder 10, the discharging upper pressing plate 21 is movably arranged above the sampling drill cylinder 10, the bottom of the discharging upper pressing plate 21 is fixedly connected with one end of the pressing rod 23, the bottom of the discharging upper pressing plate 21 is further provided with a supporting leg 22, the supporting leg 22 is alternately distributed with the pressing rod 23, the discharging upper pressing plate 21 stands on the upper surface of the sampling drill cylinder 10 through the supporting leg 22, the lower pressing plate 25 is movably arranged in the sampling drill cylinder 10, the upper surface of the lower pressing plate 25 is fixedly connected with the other end of the pressing rod 23, the rotating pressing plate 27 is rotatably connected with the bottom of the lower pressing plate 25, the rotating pressing plate 27 is slidably connected with the inner wall of the sampling drill cylinder 10 around, and the limiting block 26 is centrally arranged on the upper surface of the lower pressing plate 25.

[0040] In one embodiment of the present application, the telescopic driving device 14 comprises an annular support 17, a driving rack 18, a push rod 19 and a driving part 20, the annular support 17 is arranged on the top of the sampling drill cylinder 10, the inner diameter of the annular support 17 is greater than the outer diameter of the discharging upper pressing plate 21, the driving rack 18 is arranged around the bottom of the annular support 17, one end of the driving rack 18 is fixedly connected with the annular support 17, the other end of the driving rack 18 is fixedly connected with one end of the push rod 19, the driving rack 18 is movably arranged in the first telescopic cavity 45, the first telescopic cavity 45 is opened around on the inner wall of the sampling drill cylinder 10, the driving rack 18 is engaged with one side of the linkage gear 50, the other side of the linkage gear 50 is engaged with the rack part 24, the rack part 24 is arranged on the lower part of the pressing rod 23, the other end of the push rod 19 is fixedly connected with the driving part 20, the push rod 19 is movably arranged in the second telescopic cavity 46, the second telescopic cavity 46 is communicated with the bottom of the first telescopic cavity 45 and extends downward along the inner wall of the sampling drill cylinder 10 to the telescopic cavity 42, the telescopic cavity 42 is opened around on the bottom of the inner wall of the sampling drill cylinder 10 and opens inward.

[0041] In one embodiment of the present application, the driving part 20 comprises a support part 35 and telescopic racks 34, the telescopic racks 34 are symmetrically arranged at both ends of the support part 35, the telescopic racks 34 at both ends are respectively engaged with first gears 36, the first gears 36 are symmetrically arranged at both sides of a second gear 37, the first gears 36 are coaxially connected with the second gear 37 and rotatably arranged in a telescopic cavity 42, the second gear 37 arranged in the middle is engaged with a top block rack 43, the top block rack 43 is arranged in the middle on the upper surface of a telescopic top block 38, the telescopic top block 38 is movably arranged in the telescopic cavity 42 and located below the second gear 37, the telescopic racks 34 are arranged on both sides of one end of the telescopic top block 38, the other end of the telescopic top block 38 is provided with an extrusion part 39, the bottom of the telescopic top block 38 is provided with a sliding groove 40, the sliding groove 40 is slidably connected with a sliding rail 41, and the sliding rail 41 is fixedly arranged on the inner ground surface of the telescopic cavity 42.

[0042] In one embodiment of the present application, the linkage pressing device 16 comprises a butt joint pressing plate 28, a butt joint top plate 33, a support rod 29 and a sliding rod 32, the sliding rod 32 is movably arranged on the mounting plate 13, the sliding rod 32 is distributed on both sides of the driving motor 11, the butt joint top plate 33 is arranged above the mounting plate 13, one end of the sliding rod 32 is fixedly connected with the butt joint top plate 33, the other end of the sliding rod 32 is threadedly connected with one end of an extension plate 30, the spring 31 is sleeved on the sliding rod 32 between the extension plate 30 and the mounting plate 13, one end of the support rod 29 is fixedly connected with the other end of the extension plate 30, the extension plate 30 is symmetrically arranged on both sides of the driving motor 11, the other end of the support rod 29 is fixedly connected with the butt joint pressing plate 28, the butt joint pressing plate 28 is the same diameter as the material discharging upper pressing plate 21, and the butt joint pressing plate 28 is elastically abutted with the material discharging upper pressing plate 21.

[0043] In one embodiment of the present application, the device base 1 movably arranged has a collecting barrel 3, sliding blocks 54 are rotatably connected on both sides of the collecting barrel 3, the collecting barrel 3 is connected with the moving guide rail 44 through the sliding blocks 54, the moving guide rail 44 is symmetrically arranged on both sides of a sampling area 47, and the sampling area 47 is provided with a support vertical plate 48 at one end.

[0044] In one embodiment of the present application, the collecting barrel 3 movably arranged has a discharging plate 52, a pushing handle 53 is fixedly connected with one end of the discharging plate 52, one end of the pushing handle 53 is movably arranged in a discharging sliding groove 51, the discharging sliding groove 51 is arranged on the side wall of the collecting barrel 3, and operating handles 55 are fixedly connected on both sides of the top of the collecting barrel 3.

[0045] Working principle: when the rock sampling device for geotechnical investigation is used to sample rock, the relevant personnel first move the device main body to the designated sampling area, and make the sampling area 47 on the device base 1 face the rock layer to be sampled, then the relevant personnel control the lifting assembly 4 to lower the sampling assembly 2 at the same time, and open the sampling assembly 2, at this time, the lifting module 12 drives the sampling drill cylinder 10 to descend along the limiting sliding groove 6 of the support frame 5 through the protruding part 56 under the driving of the lifting motor 7, and the sampling drill cylinder 10 rotates at a preset speed under the driving of the driving motor 11, and gradually contacts the rock layer to sample.

[0046] In the process of sampling drill cylinder 10 drilling rock, the rock sample core gradually moves upward relative to the inside of the sampling drill cylinder 10, until it contacts the rotating pressing plate 27, so that the material discharge assembly 15 moves upward as a whole, in this process, the lower pressing plate 25 drives the pressing rod 23 to continuously move upward at the top of the sampling drill cylinder 10, until the limiting block 26 abuts against the inner top of the sampling drill cylinder 10, reaching the maximum sampling capacity, in this process, the rack part 24 arranged at the lower part of the pressing rod 23 moves upward and drives the linkage gear 50 to mesh and roll, at the same time, the linkage gear 50 drives the driving rack 18 to descend, so that the telescopic driving device 14 moves downward as a whole, at this time, the driving rack 18 descends along the first telescopic cavity 45, driving the push rod 19 to slide downward in the second telescopic cavity 46, at this time, the driving part 20 at the bottom thereof moves downward in the telescopic cavity 42, at this time, the telescopic racks 34 symmetrically arranged on both sides of the telescopic top block 38 move downward and mesh with the first gear 36 to make it rotate, at this time, the second gear 37 coaxially connected with it rotates and meshes with the top block rack 43, thereby driving the telescopic top block 38 to extend outward along the slide rail 41 in the telescopic cavity 42 through the sliding groove 40, at this time, the multiple telescopic top blocks 38 arranged around simultaneously extrude the rock sample core with the extrusion part 39, combined with the concentrated stress and shear force generated by the rotation of the sampling drill cylinder 10, and cooperate with the lifting to realize the cutting of the rock sample core, after cutting, the telescopic top block 38 extending out supports the bottom of the rock sample core, playing a limiting and anti-falling role.

[0047] When the sampling drill cylinder 10 is lifted, the rock sample is taken out, at this time, after the sampling drill cylinder 10 is lifted to the appropriate height, the relevant personnel manually move the collection barrel 3 along the moving guide rail 44 to the directly below the sampling drill cylinder 10, and make the collection barrel 3 side wall abut against the supporting vertical plate 48, so that it can stand up for sample receiving without hand holding, then with the installation plate 13 driving the sampling drill cylinder 10 to move up, the linkage pressing device 16 arranged on the installation plate 13 cooperates with the discharging pressing plate 9 to realize the pressing discharge of the rock sample, at this time, with the installation plate 13 moving up, the abutting top plate 33 abuts against and descends with the discharging pressing plate 9, the slide rod 32 slides downward on the installation plate 13 and drives the abutting pressing plate 28 to descend through the extension plate 30 and the supporting rod 29, at this time, the abutting pressing plate 28 pushes the discharging upper pressing plate 21 below to move downward, the discharging upper pressing plate 21 moves downward under the relative force and drives the lower pressing plate 25 and the rotating pressing plate 27 to discharge the rock sample in the sampling drill cylinder 10 outward through the pressing rod 23, in this process, with the descending of the material discharging assembly 15, the telescopic driving assembly 14 is linked to realize the recovery of the telescopic top block 38, so that the rock sample in the sampling drill cylinder 10 can be smoothly discharged and recovered into the collection barrel 3, realizing the automatic recovery of the rock sample, in this process, manual knocking can also be assisted to realize the smooth discharge of the rock sample.

[0048] It should be noted that in the process of rock sampling, the rotation of the sampling drill cylinder 10 will drive the discharging upper pressing plate 21 to rotate, and the abutting pressing plate 28 abutting therewith will produce rotating friction, which can be pre-sprayed with wear-resistant layer or smooth measures on the contact surface to reduce friction, at the same time, in the process of rock rotation drilling of the sampling drill cylinder 10, the rotating pressing plate 27 can abut against the rock sample while rotating relative to the lower pressing plate 25, to ensure the independent operation of each component.

[0049] In summary, the rock sampling device for geotechnical investigation has the following advantages: the telescopic top blocks distributed around the inner wall of the sampling drill cylinder cooperate with the telescopic driving device and the material discharging assembly to realize the filling and upward movement of the sampling drill cylinder through the rock sample when the sampling drill cylinder drills the rock, until the maximum sampling is reached, the material discharging assembly controls the telescopic driving assembly to push the telescopic top blocks out under the cooperation of the linkage gear, the rock sample core at the bottom of the sampling drill cylinder is squeezed around by the telescopic top blocks distributed around, the telescopic top blocks cut off the rock sample core under the action of the concentrated stress and shear force generated when the sampling drill cylinder rotates, and the telescopic top blocks limit the rock sample core, so that the rock sample core can be smoothly taken out. The linkage downward pressing device arranged above the material discharging assembly applies elastic downward pressure to the linkage downward pressing device, the discharging pressure plate at the top of the supporting frame serves as a trigger end, the abutting plate is abutted during the lifting of the abutting plate, downward pressure is applied to the discharging pressure plate under the relative action, the downward pressure plate and the rotating pressure plate push the rock sample core in the sampling drill cylinder downward under the pushing of the pressure rod, so that the rock sample core is discharged from the sampling drill cylinder, and the artificial knocking of the discharged material is facilitated. The multiple telescopic top blocks distributed around not only cut off the rock sample core, but also limit and support the bottom of the cut-off rock sample core, so that the rock sample core is prevented from falling off from the inside of the sampling drill cylinder during the lifting process, and the smooth taking out of the rock sample core is ensured. The collecting barrel arranged on the device base can be flexibly moved in the sampling area under the cooperation of the moving guide rail, the collecting barrel can be quickly moved under the sampling drill cylinder after sampling, so that the rock sample core is received, and the collecting barrel can be moved to the other end of the moving guide rail after the receiving is completed, so that the rock sample core is discharged by the cooperation of the discharging plate arranged in the collecting barrel, and the use is convenient and fast.

[0050] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0052] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution are not creative, and should belong to the protection scope of the present application.

Claims

1. A rock sampling device for geotechnical investigation, characterized by: The device base (1), the lifting assembly (4) and the sampling assembly (2) are included. The lifting assembly (4) is arranged on one side of the device base (1), and the lifting assembly (4) includes a support frame (5). The sampling assembly (2) is arranged on the support frame (5) in a lifting manner, and the sampling assembly (2) includes a sampling drill cylinder (10), a telescopic top block (38), a telescopic driving device (14) and a material discharging assembly (15). A plurality of telescopic cavities (42) are arranged around the bottom of the inner wall of the sampling drill cylinder (10), and the telescopic top block (38) is movably arranged in each telescopic cavity (42). The material discharging assembly (15) is arranged on the inner top of the sampling drill cylinder (10) in a lifting manner. The telescopic driving device (14) is arranged on the side wall of the sampling drill cylinder (10) in a lifting manner, the telescopic driving device (14) is meshed and linked with the material discharging assembly (15) through a linkage gear (50), the linkage gear (50) is arranged around the top of the sampling drill cylinder (10), and the linkage gear (50) controls the extension and retraction of the telescopic top block (38) in the telescopic cavity (42).

2. The rock sampling device for geotechnical investigation according to claim 1, characterized in that: The support frame (5) is welded and fixed with one side of the device base (1), the other side of the device base (1) is provided with a sampling area (47), the lifting assembly (4) further includes a lifting motor (7), a lead screw (8) and a material discharging pressing plate (9), the lead screw (8) is vertically arranged on the support frame (5), one end of the lead screw (8) is connected with the output end of the lifting motor (7), the lifting motor (7) is bolted on the top of the support frame (5), and the material discharging pressing plate (9) is fixedly connected with one end of the top of the support frame (5).

3. The rock sampling device for geotechnical investigation according to claim 2, characterized in that: The sampling assembly (2) further includes a lifting module (12), a driving motor (11) and a linkage pressing device (16). The lifting module (12) is threadedly connected with the lead screw (8), one end of the lifting module (12) is provided with a protruding portion (56), the protruding portion (56) is slidably connected with a limiting sliding groove (6), the limiting sliding groove (6) is arranged on one side surface of the support frame (5), and the other end of the lifting module (12) is connected with a mounting plate (13). The driving motor (11) is bolted on the bottom of the mounting plate (13), and the output end of the driving motor (11) is connected with the center shaft of the top of the sampling drill cylinder (10). The linkage pressing device (16) is arranged on the mounting plate (13) in a lifting manner, and the bottom of the linkage pressing device (16) is movably connected with the material discharging assembly (15).

4. The rock sampling device for geotechnical investigation according to claim 3, characterized in that: The material discharging assembly (15) includes a material discharging upper pressing plate (21), a pressing rod (23), a lower pressing plate (25), a rotating pressing plate (27) and a limiting block (26). The pressing rod (23) is arranged around the top of the sampling drill cylinder (10). The upper discharging pressing plate (21) is movably arranged above the sampling drill cylinder (10), the bottom of the upper discharging pressing plate (21) is fixedly connected with one end of the pressing rod (23), and the bottom of the upper discharging pressing plate (21) is also provided with supporting legs (22) which are alternately distributed with the pressing rod (23), and the upper discharging pressing plate (21) stands on the upper surface of the sampling drill cylinder (10) through the supporting legs (22); The lower pressing plate (25) is movably arranged in the sampling drill cylinder (10), and the upper surface of the lower pressing plate (25) is fixedly connected with the other end of the pressing rod (23); The rotating pressing plate (27) is rotatably connected with the bottom of the lower pressing plate (25), and the rotating pressing plate (27) is slidably connected with the inner wall of the sampling drill cylinder (10) around; The limiting block (26) is centrally arranged on the upper surface of the lower pressing plate (25).

5. The rock sampling device for geotechnical investigation according to claim 4, characterized in that: The telescopic driving device (14) comprises a ring-shaped supporting member (17), a driving rack (18), a push rod (19) and a driving part (20); The ring-shaped supporting member (17) is arranged at the top of the sampling drill cylinder (10), and the inner diameter of the ring-shaped supporting member (17) is greater than the outer diameter of the upper discharging pressing plate (21); The driving rack (18) is circumferentially arranged at the bottom of the ring-shaped supporting member (17), one end of the driving rack (18) is fixedly connected with the ring-shaped supporting member (17), the other end of the driving rack (18) is fixedly connected with one end of the push rod (19), the driving rack (18) is movably arranged in the first telescopic cavity (45), the first telescopic cavity (45) is circumferentially arranged on the inner wall of the sampling drill cylinder (10), the driving rack (18) is meshed with one side of the linkage gear (50), the other side of the linkage gear (50) is meshed with the rack part (24), and the rack part (24) is arranged at the lower part of the pressing rod (23); The other end of the push rod (19) is fixedly connected with the driving part (20), the push rod (19) is movably arranged in the second telescopic cavity (46), the second telescopic cavity (46) is in communication with the bottom of the first telescopic cavity (45) and extends downward along the inner wall of the sampling drill cylinder (10) to the telescopic cavity (42), and the telescopic cavity (42) is circumferentially arranged at the bottom of the inner wall of the sampling drill cylinder (10) and opens inward.

6. The rock sampling device for geotechnical investigation according to claim 5, characterized in that: The driving part (20) comprises a support part (35) and a telescopic rack (34), the telescopic rack (34) is symmetrically arranged at both ends of the support part (35), the telescopic rack (34) at both ends is respectively engaged with a first gear (36), the first gear (36) is symmetrically arranged at both sides of a second gear (37), the first gear (36) is coaxially connected with the second gear (37) and is rotatably arranged in a telescopic cavity (42), the centrally arranged second gear (37) is engaged with a top block rack (43), the top block rack (43) is centrally arranged on the upper surface of a telescopic top block (38), the telescopic top block (38) is movably arranged in the telescopic cavity (42) and located below the second gear (37), the telescopic rack (34) is arranged on both sides of one end of the telescopic top block (38), the other end of the telescopic top block (38) is provided with a pressing part (39), the bottom of the telescopic top block (38) is provided with a sliding groove (40), the sliding groove (40) is slidably connected with a sliding rail (41), and the sliding rail (41) is fixedly arranged on the inner ground surface of the telescopic cavity (42).

7. The rock sampling device for geotechnical investigation according to claim 6, characterized in that: The linkage lower pressing device (16) comprises a butt joint pressing plate (28), a butt joint top plate (33), a support rod (29) and a sliding rod (32); The sliding rod (32) is movably arranged on the mounting plate (13), and the sliding rod (32) is arranged on both sides of the driving motor (11); The butt joint top plate (33) is arranged above the mounting plate (13), one end of the butt joint top plate (33) is fixedly connected with the sliding rod (32), the other end of the sliding rod (32) is threadedly connected with one end of an extension plate (30), and a spring (31) is sleeved on the sliding rod (32) between the extension plate (30) and the mounting plate (13); One end of the support rod (29) is fixedly connected with the other end of the extension plate (30), the extension plate (30) is symmetrically arranged on both sides of the driving motor (11), and the other end of the support rod (29) is fixedly connected with the butt joint pressing plate (28); The butt joint pressing plate (28) has the same diameter as the material discharging upper pressing plate (21), and the butt joint pressing plate (28) is elastically abutted with the material discharging upper pressing plate (21).

8. The rock sampling device for geotechnical investigation according to claim 7, characterized in that: The device base (1) movably arranged has a collecting barrel (3), both sides of the collecting barrel (3) are rotatably connected with sliding blocks (54), the collecting barrel (3) is connected with a moving guide rail (44) through the sliding blocks (54), the moving guide rail (44) is symmetrically arranged on both sides of a sampling area (47), and one end of the sampling area (47) is provided with a support vertical plate (48).

9. The rock sampling device for geotechnical investigation according to claim 8, characterized in that: A discharging plate (52) is movably arranged in the collecting barrel (3), one end of the discharging plate (52) is fixedly connected with a pushing handle (53), one end of the pushing handle (53) is movably arranged in a discharging chute (51), the discharging chute (51) is arranged on the side wall of the collecting barrel (3), and both sides of the top of the collecting barrel (3) are fixedly connected with operation handles (55).

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