Rock soil sampler for geological survey

Abstract

The invention discloses a rock-soil sampler for geological survey, and belongs to the technical field of geological survey, the rock-soil sampler comprises a drill bit module, drill spindle modules and a drill arm module, a plurality of drill spindle modules are arranged between the drill bit module and the drill arm module, each drill spindle module comprises a spindle body, an insertion cylinder and a locking hole, and the insertion cylinder is arranged at one end of the spindle body; the inserting cylinder is embedded in the shaft body, a plurality of locking holes are formed in the inner wall side of the inserting cylinder, the other end of the shaft body is fixedly connected with a locking assembly, the locking assembly comprises a locking cylinder and locking pins, and the locking pins matched with the locking holes are arranged on the outer wall side of the locking cylinder in a sliding mode; the plurality of detachable drill spindle modules are arranged between the drill bit module and the drill arm module, so that the sampling depth of a drilling drill bit can be adjusted according to an actual exploration environment, and meanwhile, all depth positions in a drill hole can be sampled at the same time by matching with the triggering assembly, so that layered samples of a rock-soil structure are obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of geological survey, and in particular relates to a rock and soil sampler for geological survey. Background Art

[0002] Geological survey is a complex and diverse task. Its main purpose is to conduct detailed investigation and research on geological conditions such as rocks, strata, structures, minerals, groundwater and landforms in a certain area through various technical means and methods. Geological survey can be divided into multiple directions, including energy and engineering.

[0003] There are many methods of geological survey, including pits, trenches, drilling and geophysical exploration. Drilling is the most widely used exploration method. It is used to identify and divide the subsurface strata by drilling holes in the strata, and samples can be taken along the depth of the holes.

[0004] When sampling geological rock and soil structural layers, the existing process flow is mostly to drill a hole with a drill bit, and then use a sampler to move along the hole wall to different depths for segmented sampling. Not only does it require the sampler to be repeatedly raised and lowered many times, but during the drilling process, the drill rod structure generally adopts a fixed or multi-section type. During actual on-site operations, the process of adjusting the drill rod length is also relatively cumbersome. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of an embodiment of the present invention is to provide a rock and soil sampler for geological survey to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A rock and soil sampler for geological survey, comprising a drill bit module, wherein the drill bit module comprises a drill rod and a drill bit, wherein the drill bit is fixedly arranged at one end of the drill rod, and a locking assembly is fixedly arranged at the other end of the drill rod; A drill shaft module, the drill shaft module comprises a shaft body, a plug-in barrel, an alignment hole, a locking hole and a connecting hole, one end of the shaft body is provided with a plug-in barrel, the plug-in barrel is embedded in the shaft body and an alignment hole is provided at the bottom of the shaft body, a plurality of locking holes are circumferentially arranged on the inner wall side of the plug-in barrel, a connecting hole is provided on the top of the plug-in barrel, and a locking assembly is fixedly connected to the other end of the shaft body; A drill arm module, the drill arm module comprising a driving arm and driving teeth, the driving arm having the same structure as the inner side of the shaft body, and the outer wall side of the driving arm is provided with driving teeth; A locking assembly, the locking assembly comprising a locking cylinder, a connecting hole, an inner cavity and a locking pin, wherein the locking cylinder is provided with a connecting hole and an inner cavity in the middle, and a plurality of locking pins are slidably provided on the outer wall side of the locking cylinder, and the locking pins are matched with the locking holes so that when the locking cylinder is slidably inserted into the insertion cylinder, the plurality of locking pins are respectively embedded in the plurality of locking holes; The trigger assembly comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is limitedly slidably arranged inside the outer sleeve, and the outer sleeve is slidably assembled in the locking cylinder and is linked to the locking pin.

[0007] As a further solution of the present invention, the rock and soil sampler for geological survey includes a drill bit module, a plurality of drill shaft modules and a drill arm module.

[0008] As a further solution of the present invention, the drill shaft module also includes a conical groove, which is arranged on one side of the alignment hole and is slidably abutted against a plurality of the locking pins.

[0009] As a further solution of the present invention, the drill shaft module also includes a positioning plate, an inner slide groove and a sampling bucket. The positioning plate is fixedly arranged on the inner wall end of the shaft body, and a plurality of inner slide grooves are circumferentially arranged on the wall of the shaft body. One end of the sampling bucket is slidably connected to the inner slide groove, and the other end of the sampling bucket is elastically slidably connected to the positioning plate.

[0010] As a further solution of the present invention, the drill shaft module also includes a connecting arm and a driving guide groove, one end of the connecting arm is rotatably connected to the sampling bucket, and the other end of the connecting arm is fixedly connected to the driving guide groove, and the driving guide groove is linked to the inner sleeve.

[0011] As a further solution of the present invention, the locking assembly also includes a traction plate and a traction arm, the traction plate is slidably arranged in the inner cavity, the traction plate is fixedly connected to the outer sleeve, and one end of the traction plate is elastically connected to the locking cylinder, and the other end of the traction plate is rotatably connected to a plurality of traction arms, and the end of the traction arm is movably connected to the locking pin for driving the movement of the locking pin.

[0012] As a further solution of the present invention, the trigger assembly also includes a keyway and a trigger arm. The shell of the outer sleeve is also provided with a keyway, and the inner sleeve is fixedly provided with a trigger arm. One end of the trigger arm is limitedly slidably assembled in the keyway, and the other end of the trigger arm is slidably assembled in the drive guide groove.

[0013] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects: The present invention provides a plurality of detachable drill shaft modules between the drill bit module and the drill arm module, which can not only adjust the sampling depth of the drilling bit according to the actual survey environment, but also simultaneously sample all depth positions in the borehole in conjunction with the trigger component to obtain layered samples of the rock and soil structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a rock and soil sampler for geological survey provided in one embodiment of the present invention.

[0015] Figure 2 It is a schematic structural diagram of a drill shaft module in a rock and soil sampler for geological survey provided in one embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the rock and soil sampler for geological survey shown in figure A in one embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the rock and soil sampler for geological survey shown in FIG. 1 , which is marked with a symbol B in one embodiment of the present invention.

[0018] Figure 5 It is a schematic structural diagram of a drill bit module in a rock and soil sampler for geological survey provided in one embodiment of the present invention.

[0019] Figure 6 It is a schematic structural diagram of a drill arm module in a rock and soil sampler for geological survey provided in one embodiment of the present invention.

[0020] Figure markings: 1-drill bit module, 101-drill rod, 102-drill bit, 2-drill shaft module, 201-axis body, 202-plug-in cylinder, 203-alignment hole, 204-locking hole, 205-connecting hole, 206-conical groove, 207-positioning plate, 208-inner slide groove, 209-sampling bucket, 210-connecting arm, 211-driving guide groove, 3-drill arm module, 301-driving arm, 302-driving tooth, 4-locking assembly, 401-locking cylinder, 402-connecting hole, 403-inner cavity, 404-locking pin, 405-traction plate, 406-traction arm, 5-trigger assembly, 501-outer sleeve, 502-inner sleeve, 503-keyway, 504-trigger arm. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] See also Figure 1-Figure 6The rock sampler for geological survey in one embodiment of the present invention comprises a drill head module 1, wherein the drill head module 1 comprises a drill rod 101 and a drill head 102, wherein the drill head 102 is fixedly provided at one end of the drill rod 101, and a locking assembly 4 is fixedly provided at the other end of the drill rod 101; a drill shaft module 2, wherein the drill shaft module 2 comprises a shaft body 201, an inserting tube 202, an alignment hole 203, a locking hole 204 and a connecting hole 205, wherein the inserting tube 202 is fixedly provided at one end of the shaft body 201, and a locking assembly 4 is fixedly provided at the other end of the drill rod 101; and 2, the plug-in cylinder 202 is embedded in the shaft body 201 and the bottom of the shaft body 201 is provided with a positioning hole 203, the inner wall side of the plug-in cylinder 202 is also circumferentially provided with a plurality of locking holes 204, the top of the plug-in cylinder 202 is provided with a connecting hole 205, and the other end of the shaft body 201 is fixedly connected with a locking assembly 4; a drill arm module 3, the drill arm module 3 includes a driving arm 301 and a driving tooth 302, the driving arm 301 has the same structure as the inner side of the shaft body 201, The outer wall side of the driving arm 301 is provided with a driving tooth 302; the locking assembly 4, the locking assembly 4 includes a locking cylinder 401, a connecting hole 402, an inner cavity 403 and a locking pin 404, the middle part of the locking cylinder 401 is provided with a connecting hole 402 and an inner cavity 403, the outer wall side of the locking cylinder 401 is slidably provided with a plurality of locking pins 404, and the locking pins 404 are matched with the locking hole 204, so that the locking cylinder 401 is slidably inserted into the plug-in cylinder 202 When the locking pins 404 are engaged in the locking holes 204 respectively, the trigger assembly 5 comprises an outer sleeve 501 and an inner sleeve 502, the inner sleeve 502 is slidingly arranged inside the outer sleeve 501, the outer sleeve 501 is slidingly assembled in the locking cylinder 401, and is linked with the locking pins 404; the rock and soil sampler for geological survey comprises a drill bit module 1, several drill shaft modules 2 and a drill arm module 3.

[0023] In actual application of this embodiment, when the rock sampler is used for geological survey, the rock sampler is composed of a drill head module 1, a plurality of drill shaft modules 2 and a drill arm module 3. The plurality of drill shaft modules 2 are linearly connected end to end, and one end of the two drill shaft modules 2 on the end side is plugged into the drill head module 1, and the other end is plugged into the drill arm module 3. The drill arm module 3 is connected to the driving source of the drilling mechanism to drive the rock sampler for geological survey, and the drilling depth of the sampler is determined by the number of drill shaft modules 2 arranged. Since the locking assembly 4 is provided at one end of the drill rod 101 and the shaft body 201, and the plug-in tube 202 is provided at the other end of the shaft body 201, during the assembly process, one end of the shaft body 201 can be plugged into the locking assembly 4 of the drill rod 101 through the plug-in tube 202, and the plurality of shaft bodies 201 can be connected through The plug-in tube 202 and the locking assembly 4 are seamlessly connected so that the shaft length of the geotechnical sampler can be freely adjusted according to actual survey requirements. When the several shafts 201 are plugged into each other, several locking pins 404 arranged at one end of the locking tube 401 can be movably engaged in the locking hole 204 on the inner wall side of the plug-in tube 202, so that the plug-in tube 202 and the locking tube 401 are in a locked state in the circumferential direction and the axial direction. During the disassembly process, the outer sleeve 501 can be driven to slide inside the shaft 201, so that the locking pin 404 is loosened from the locking hole 204, so that the adjustable shaft can be quickly loaded and unloaded. At the same time, independent sampling modules are also arranged inside the several detachable shafts 201, and samples at different depths can be independently collected according to the actual exploration depth, so as to obtain geological stratification samples.

[0024] In one case of this embodiment, only the outer sleeve 501 is assembled in the locking cylinder 401 on one side of the drill rod 101 .

[0025] See also Figure 2 In a preferred embodiment of the present invention, the drill shaft module 2 further includes a conical groove 206 , which is arranged on one side of the alignment hole 203 and is in sliding contact with a plurality of the locking pins 404 .

[0026] In actual application of this embodiment, the conical groove 206 adopts a conical surface structure, so that when the locking cylinder 401 is inserted into one side of the alignment hole 203, the locking pin 404 preferentially slides and abuts against the conical groove 206, so that the locking pin 404 shrinks into the locking cylinder 401 under the pressed state, until the locking cylinder 401 abuts against the top side of the plug-in cylinder 202, the locking pin 404 is aligned with the locking hole 204 and then slides and fits into the locking hole 204, thereby completing the locking between the shaft body 201 and the locking cylinder 401, and in this state, several interconnected shaft bodies 201 are tightly fitted to prevent debris from entering the plug-in cylinder 202 during rock drilling.

[0027] See also Figure 4 In a preferred embodiment of the present invention, the drill shaft module 2 also includes a positioning plate 207, an inner slide groove 208 and a sampling bucket 209. The positioning plate 207 is fixedly arranged on the inner wall end of the shaft body 201, and a plurality of inner slide grooves 208 are circumferentially arranged on the wall of the shaft body 201. One end of the sampling bucket 209 is slidably connected to the inner slide groove 208, and the other end of the sampling bucket 209 is elastically slidably connected to the positioning plate 207.

[0028] In actual application of this embodiment, the positioning plate 207 is fixedly set in the inner wall of the shaft body 201, and the sampling bucket 209 is slidably assembled in the inner slide groove 208, and several sampling buckets 209 are arranged in a central symmetrical manner. When several sampling buckets 209 slide toward the outside of the shaft body 201 under the action of driving, the opening groove at one end of the sampling bucket 209 matches the rotation direction of the shaft body, so that when the shaft body rotates, the sampling bucket 209 can scrape the sample structure in the borehole wall during the extension process, and when the driving source at one end of the sampling bucket 209 disappears, the sampling bucket 209 slides toward one end of the positioning plate 207 under the elastic force, so that the sampling bucket 209 shrinks to the inside of the inner slide groove 208.

[0029] In one case of this embodiment, the elastic traction force applied to the sampling bucket 209 is, by default, greater than the centrifugal force applied to the sampling bucket 209 during the rotation process.

[0030] See also Figure 3 In a preferred embodiment of the present invention, the locking assembly 4 also includes a traction plate 405 and a traction arm 406, the traction plate 405 is slidably arranged in the inner cavity 403, the traction plate 405 is fixedly connected to the outer sleeve 501, and one end of the traction plate 405 is elastically connected to the locking cylinder 401, and the other end of the traction plate 405 is rotatably connected to a plurality of traction arms 406, and the end of the traction arm 406 is movably connected to the locking pin 404 for driving the movement of the locking pin 404.

[0031] In actual application of this embodiment, the traction plate 405 is elastically slidably arranged in the inner cavity 403. When it is necessary to disassemble several assembled and connected shaft bodies 201, the outer sleeve 501 arranged on the end side shaft body 201 can be pressed to make the outer sleeve 501 slide in the locking cylinder 401 and the shaft body 201. The traction arm 406 movably connected on the outer sleeve 501 can pull the locking pin 404 to retract into the locking cylinder 401, so that the shaft body 201 and the locking cylinder 401 on the adjacent side are unlocked, and the bottom of the outer sleeve 501 is crimped onto the outer sleeve 501 in the adjacent side shaft body 201 through the connecting hole 205, so that several outer sleeves 501 are crimped and connected in sequence, and by driving the outer sleeve 501 on the end side of the shaft body structure to move, several outer sleeves 501 can be driven to move synchronously, so that several shaft bodies 201 are unlocked from each other.

[0032] See also Figure 4 In a preferred embodiment of the present embodiment, the drill shaft module 2 also includes a connecting arm 210 and a driving guide groove 211, one end of the connecting arm 210 is rotatably connected to the sampling bucket 209, and the other end of the connecting arm 210 is fixedly connected to the driving guide groove 211, and the driving guide groove 211 is linked to the inner sleeve 502. The trigger assembly 5 also includes a key groove 503 and a trigger arm 504. The shell of the outer sleeve 501 is also provided with a key groove 503, and the inner sleeve 502 is fixedly provided with a trigger arm 504, one end of the trigger arm 504 is limitedly slidably assembled in the key groove 503, and the other end of the trigger arm 504 is slidably assembled in the driving guide groove 211.

[0033] In actual application of this embodiment, when it is necessary to sample rock and soil at different depths during the drilling process, the drill bit module 1, the plurality of drill shaft modules 2 and the drill arm module 3 are all in a driven rotation state. At this time, by pressing the inner sleeve 502 at one end of the driving arm 301 on the terminal side, the plurality of inner sleeves 502 abutting against each other in sequence can move synchronously, and during the elastic sliding of the inner sleeve 502 inside the outer sleeve 501, the trigger arm 504 on the inner sleeve 502 can slide in the slot of the driving guide groove 211, and when sliding to the end of the slot of the driving guide groove 211, the driving guide groove 211 is pressed to move, so that the driving guide groove 211 at one end of the driving guide groove 211 pushes the sampling bucket 209 to slide in the inner slide groove 208, so that the sampling buckets 209 in the plurality of shaft bodies 201 are synchronously extended outward to sample rock and soil structures at different depths.

[0034] The above-mentioned embodiment of the present invention provides a rock and soil sampler for geological survey. By arranging a plurality of detachable drill shaft modules 2 between the drill bit module 1 and the drill arm module 3, not only can the sampling depth of the drilling bit be adjusted according to the actual survey environment, but also all depth positions in the borehole can be sampled simultaneously in conjunction with the trigger component 5 to obtain stratified samples of the rock and soil structure.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rock and soil sampler for geological survey, characterized in that: The rock and soil sampler for geological survey comprises: A drill bit module, the drill bit module comprising a drill rod and a drill bit, one end of the drill rod being fixedly provided with the drill bit, and the other end of the drill rod being fixedly provided with a locking assembly; A drill shaft module, the drill shaft module comprises a shaft body, a plug-in barrel, an alignment hole, a locking hole and a connecting hole, one end of the shaft body is provided with a plug-in barrel, the plug-in barrel is embedded in the shaft body and an alignment hole is provided at the bottom of the shaft body, a plurality of locking holes are circumferentially arranged on the inner wall side of the plug-in barrel, a connecting hole is provided on the top of the plug-in barrel, and a locking assembly is fixedly connected to the other end of the shaft body; A drill arm module, the drill arm module comprising a driving arm and driving teeth, the driving arm having the same structure as the inner side of the shaft body, and the outer wall side of the driving arm is provided with driving teeth; A locking assembly, the locking assembly comprising a locking cylinder, a connecting hole, an inner cavity and a locking pin, wherein the locking cylinder is provided with a connecting hole and an inner cavity in the middle, and a plurality of locking pins are slidably provided on the outer wall side of the locking cylinder, and the locking pins are matched with the locking holes so that when the locking cylinder is slidably inserted into the insertion cylinder, the plurality of locking pins are respectively embedded in the plurality of locking holes; The trigger assembly comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is limitedly slidably arranged inside the outer sleeve, and the outer sleeve is slidably assembled in the locking cylinder and is linked to the locking pin.

2. A rock and soil sampler for geological survey according to claim 1, characterized in that: The rock and soil sampler for geological survey comprises a drill head module, a plurality of drill shaft modules and a drill arm module.

3. A rock and soil sampler for geological survey according to claim 1, characterized in that: The drill shaft module also includes a conical groove, which is arranged on one side of the alignment hole and is slidably abutted against a plurality of the locking pins.

4. A rock and soil sampler for geological survey according to claim 1, characterized in that: The drill shaft module also includes a positioning plate, an inner slide groove and a sampling bucket. The positioning plate is fixedly arranged on the inner wall end of the shaft body, and a plurality of inner slide grooves are arranged circumferentially on the wall of the shaft body. One end of the sampling bucket is slidably connected to the inner slide groove, and the other end of the sampling bucket is elastically slidably connected to the positioning plate.

5. A rock and soil sampler for geological survey according to claim 4, characterized in that: The drill shaft module also includes a connecting arm and a driving guide groove. One end of the connecting arm is rotatably connected to the sampling bucket, and the other end of the connecting arm is fixedly connected to the driving guide groove. The driving guide groove is linked to the inner sleeve.

6. A rock and soil sampler for geological survey according to claim 1, characterized in that: The locking assembly also includes a traction plate and a traction arm. The traction plate is slidably arranged in the inner cavity. The traction plate is fixedly connected to the outer sleeve, and one end of the traction plate is elastically connected to the locking cylinder. The other end of the traction plate is rotatably connected to a plurality of traction arms. The end of the traction arm is movably connected to the locking pin for driving the movement of the locking pin.

7. A rock and soil sampler for geological survey according to claim 5, characterized in that: The trigger assembly also includes a keyway and a trigger arm. The shell of the outer sleeve is also provided with a keyway, and the inner sleeve is fixedly provided with a trigger arm. One end of the trigger arm is limitedly slidably assembled in the keyway, and the other end of the trigger arm is slidably assembled in the drive guide groove.

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