CN115615741A - Adjustable soil sampling device for environmental protection detection and use method thereof - Google Patents
Adjustable soil sampling device for environmental protection detection and use method thereof Download PDFInfo
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- CN115615741A CN115615741A CN202211529896.3A CN202211529896A CN115615741A CN 115615741 A CN115615741 A CN 115615741A CN 202211529896 A CN202211529896 A CN 202211529896A CN 115615741 A CN115615741 A CN 115615741A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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Abstract
The invention relates to the technical field of soil detection, in particular to an adjustable soil sampling device for environment-friendly detection, which comprises: the drill comprises a conical main body and a rotary vane structure; the guide rod is coaxially arranged with the conical main body; a stirring structure for stirring the soil crushed by the drill bit; the removing structure drives the soil and the stirring structure which are positioned in a set range above the bottom surface to move out of the drilled hole position before the drill bit reaches a specified depth and moves out of the soil, and comprises a piston head and a piston rod; get the material sleeve, after stirring structure shifts out from soil with the structure of rejecting to and before the drill bit shifts out from soil, the guide bar periphery is located to the cover, and with the guide bar between form the space that holds soil, follow with shifting out in step of drill bit and realize the sample of soil in the space. The invention can realize accurate sampling of soil, has more flexible depth adjustment, can not generate soil omission in the soil sampling process, and can reduce the force application requirement in the operation process through adjustment in different states.
Description
Technical Field
The invention relates to the technical field of soil detection, in particular to an adjustable soil sampling device for environment-friendly detection and a using method thereof.
Background
For soil remediation, the foundation is to obtain the required soil sample, and perform corresponding analysis and research on the sample.
The mode of inserting the sampling head into soil perpendicularly is mostly adopted to current soil sampling device, and makes the soil of setting for the degree of depth enter into the sampling head, takes out the sampling head from soil afterwards, and the analysis result through inside soil is as the prosthetic foundation of soil.
However, the current soil sampling device has the following problems in the use process:
the length of the sampling head is limited, so that only soil with the depth corresponding to the length range of the sampling head can be sampled in the process of inserting the sampling head into the soil, and when the depth is exceeded, the soil cannot enter deeper soil due to the fact that the soil is filled in the sampling head; when sampling is completed and the sampling head is taken out of the soil, the sampling head is provided with an opening end for the soil to enter, so that in the process of moving the sampling head out of the soil, on one hand, the soil is inevitably leaked from the opening end, and the condition is more obvious when the opening end is arranged downwards; on the other hand, the soil exposed through the open end is also made inevitably affected by the soil above its level during removal.
The above problems make soil remediation limited by sampling depth and analysis accuracy, respectively.
Disclosure of Invention
The invention provides an adjustable soil sampling device for environmental protection detection and a using method thereof, which effectively solve the problems pointed out in the background art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
soil sampling device with adjustable be used for environmental protection to detect includes:
the drill bit comprises a conical main body and rotary vane structures, wherein the rotary vane structures are distributed around the periphery of the conical main body along a conical spiral line, and the diameter of a drilling range is larger than the diameter of the bottom surface of the conical main body;
one end of the guide rod is fixedly connected with the bottom surface and is arranged along the axial direction of the conical main body;
a stirring structure for stirring the soil crushed by the drill bit while the drill bit is drilling into the soil;
the removing structure is fixedly connected with the stirring structure, is attached to the bottom surface in the process that the drill bit enters the soil, drives the soil located in the set range above the bottom surface and the stirring structure to move out of the drilled hole position through external force before the drill bit reaches the specified depth and moves out of the soil, and comprises a piston head and a piston rod which are coaxially sleeved on the periphery of the guide rod, wherein the diameter of the piston head is smaller than or equal to that of the bottom surface;
get the material sleeve stir the structure with reject the structure and shift out the back in soil, and the drill bit certainly before soil shifts out, the cover is located the guide bar is peripheral, and with form the space that holds soil between the guide bar, along with shifting out in step of drill bit and realizing the sample of soil in the space.
Further, the diameter of the drilling range of the drill is 1.2 to 1.5 times of the diameter of the bottom surface.
Furthermore, the stirring structure comprises a plurality of metal wires, and the metal wires are uniformly distributed around the piston rod and are arranged in parallel with the piston rod;
and a mounting disc is arranged at one end of the periphery of the piston rod, which is far away from the piston head, one end of the metal wire is fixed relative to the mounting disc, and the other end of the metal wire is fixed relative to the piston head.
Furthermore, first through holes are formed in the mounting disc in one-to-one correspondence with the metal wires;
the metal wire penetrates through the first through hole to obtain a leading-out section;
the leading-out section of each metal wire is extruded and fixed on the outer surface of the piston rod through a locking structure sleeved on the periphery of the piston rod.
Further, the piston head is provided with a retraction space towards the end of the bottom surface, the piston head is further provided with a second through hole, the retraction space accommodates the end of the metal wire entering through the second through hole, and the open end of the retraction space is sealed through a cover plate.
Furthermore, a thread section and an extrusion structure in threaded connection with the thread section are arranged on the periphery of the guide rod;
the extrusion structure moves on the thread section to provide extrusion force towards the bottom surface for the piston rod sleeved on the periphery of the guide rod.
The device further comprises a guide sleeve, and the guide sleeve is sleeved on the periphery of the guide rod after the removing structure and the stirring structure are moved out and is fixedly connected with the guide rod;
get the material telescopic in-process of inserting soil, get telescopic inner wall with the laminating of the outer wall of uide bushing and obtain the direction.
Furthermore, the outside of the at least axial one end of uide bushing is provided with the chamfer.
Further, get the inner wall of material sleeve at least one end and become the state of dispersing at the port department, it is the cylinder to get material sleeve outer wall.
The use method of the adjustable soil sampling device for environmental protection detection comprises the following steps:
combining the stirring structure, the removing structure, the drill bit and the guide rod;
the guide rod is rotated, and the drill bit, the stirring structure and the removing structure are synchronously driven to rotate through the guide rod until the drill bit drills to a set depth;
the stirring structure and the removing structure are moved out of the soil along the axial direction of the guide rod, and the linear motion speed is lower than the set speed;
inserting a material taking sleeve into the soil according to the axial direction of the guide rod, sleeving the material taking sleeve on the periphery of the guide rod, and forming a space for containing the soil between the material taking sleeve and the guide rod until the material taking sleeve abuts against the bottom surface of the conical main body;
pulling the guide rod, and synchronously driving the drill bit, the material taking sleeve and the soil in the space to move out;
the drill bit and the material taking sleeve are separated, so that soil in the material taking sleeve is gradually moved out from the material taking sleeve from one side close to the drill bit to the other side for detection.
Through the technical scheme of the invention, the following technical effects can be realized:
1. by using the drill bit, the requirement on force application of a user is reduced in the process that the whole sampling device enters the soil, so that the difficulty of operation is reduced;
2. the soil is in a looser state under the stirring action of the stirring structure, so that the difficulty in removing the removing structure is reduced, and the soil on the side wall can smoothly enter a space between the bottom of the piston head and the bottom surface after the removing structure is removed;
3. through the removal of part of the soil, the requirement on the force application of a user can be reduced in the final process of removing the drill bit from the soil, and the purpose of reducing the operation difficulty is achieved;
4. the soil between the guide rod and the material taking sleeve is completely distributed according to the distribution form in the soil layer, so that the sampling result is more accurate;
5. in the material taking process, the drill bit provides vertical upward thrust for soil on the drill bit at the bottom, so that no soil is omitted, and the soil with resistance provided for the drill bit is low in compactness due to the removal of part of soil, so that the difficulty in finally taking the material is reduced;
6. during sampling, the sampling depth can be expanded when the length and strength of the whole sampling device meet the requirements.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an exploded view of the two-part structure of the present invention, one of which is a drill and a guide bar, and the other of which is a removing structure and a stirring structure;
FIG. 2 is a schematic view of the structure of FIG. 1 after the two parts are assembled;
FIG. 3 is a front view of the drill bit;
FIG. 4 is a schematic diagram showing the comparison of the two states of the sampling device of the present invention during insertion into soil and removal of the rejection structure and the agitation structure after insertion in place;
FIG. 5 is a schematic view of the material take-off sleeve inserted in place in the soil;
FIG. 6 is a schematic view of a combined structure of a rejection structure and a stirring structure;
FIG. 7 is a schematic view of the locking mechanism pressing against the wire;
FIG. 8 is a schematic view of the combination of the piston head, piston rod and mounting plate;
FIG. 9 is a schematic view of the retracted position;
FIG. 10 is an enlarged view of a portion of FIG. 9 at A;
FIG. 11 is an enlarged view of a portion of FIG. 2 at B;
FIG. 12 is an exploded view of the combination drill bit and guide rod structure, guide sleeve and take-off sleeve;
reference numerals: 1. A drill bit; 11. a conical body; 11a, a bottom surface; 12. a rotary vane structure; 2. a guide bar; 3. removing the structure; 31. a piston head; 31a, a second through hole; 32. a piston rod; 4. a stirring structure; 41. a metal wire; 41a, locking nails; 42. mounting a disc; 42a, a first through hole; 43. a locking structure; 5. a take-off sleeve; 6. and a guide sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, an adjustable soil sampling device for environmental protection detection includes: the drill bit 1 comprises a conical main body 11 and rotary vane structures 12, wherein the rotary vane structures 12 are distributed around the periphery of the conical main body 11 along a conical spiral line, and the diameter of a drilling range is larger than the diameter of the bottom surface 11a of the conical main body 11; one end of the guide rod 2 is fixedly connected with the bottom surface 11a and is arranged along the axial direction of the conical main body 11; the stirring structure 4 is used for stirring the soil crushed by the drill bit 1 in the process that the drill bit 1 drills into the soil; the removing structure 3 is fixedly connected with the stirring structure 4, is attached to the bottom surface 11a in the process that the drill bit 1 enters the soil, drives the soil located in the set range above the bottom surface 11a and the stirring structure 4 to move out of the drilled hole position through external force before the drill bit 1 reaches the specified depth and moves out of the soil, and comprises a piston head 31 and a piston rod 32 which are coaxially sleeved on the periphery of the guide rod 2, wherein the diameter of the piston head 31 is smaller than or equal to that of the bottom surface 11 a; get material sleeve 5, stir structure 4 and reject structure 3 and shift out the back in soil to and before drill bit 1 shifts out from soil, the guide bar 2 periphery is located to the cover, and with the guide bar 2 between form the space that holds soil, shift out and realize the sample of soil in the space along with the synchronization of drill bit 1.
Fig. 1 and fig. 2 respectively show an exploded schematic view and a combined schematic view of the adjustable soil sampling device for environmental protection testing according to the present invention, which can obtain different states of entering and removing from soil through an adjustment mode, specifically as follows:
during the process of drilling the drill bit 1 into the soil, the soil layer can obtain a drilling structure, the rotary vane structure 12 can break the soil by acting force on the soil, and the drilling mode through the drill bit 1 is obviously helpful for reducing the acting force of the operation, and the state is shown as a sampling device on the left side in fig. 4;
in the above process, the stirring structure 4 stirs the crushed soil along with the above process, so that the soil can obtain a softer and more uniform state, and of course, the condition that the soil overflows from the inlet of the drilled hole to the outside inevitably occurs in the process, which does not affect the implementation effect of the invention;
in the stirring process, soil can enter a gap of the stirring structure 4, so that after the drill bit 1 drills in place, as shown in the right side of fig. 4 of the sampling device, in the process that the removing structure 3 drives the stirring structure 4 to move out, the soil in a set range above the bottom surface 11a can be taken out from a hole site, the taking-out action mainly depends on upward thrust generated by the piston head 31 on the soil, and in the moving-out process, the guide rod 2 can guide the movement of the removing structure 3, so that the movement stability is ensured; in the invention, soil within the above set range is inevitably mixed with soil of different heights in the process of drilling by the drill bit 1, so that the soil is not suitable for being used as a detected soil sample, and in the process of driving the soil to move out by the removing structure 3, a gap is formed between the bottom of the piston head 31 and the bottom 11a of the conical main body 11, so that the soil on the side surface is filled into the area along with the continuous movement of the removing structure 3, and along with the gradual filling of the area from bottom to top, a soil distribution form completely consistent with the actual soil layer condition is formed around the guide rod 2.
As shown in fig. 5, after the removing structure 3 and the stirring structure 4 are removed, the soil in the drilled hole is relatively loose, and at this time, the taking sleeve 5 is inserted into the soil and sleeved on the periphery of the guide rod 2, so that the filled soil is limited between the taking sleeve 5 and the guide rod 2, and when the drill bit 1 is pulled upwards by the guide rod 2, the soil between the taking sleeve 5 and the guide rod 2 is removed according to the up-and-down distribution relationship in the soil layer.
In the above process, at least the following effects are achieved in the present invention:
1. by using the drill bit 1, the requirement on force application of a user is reduced in the process that the whole sampling device enters soil, and the difficulty in operation is reduced;
2. the soil is in a looser state under the stirring action of the stirring structure 4, so that the difficulty in moving the removing structure 3 is reduced, and the soil on the side wall can smoothly enter a space between the bottom of the piston head 31 and the ground after the removing structure is moved out;
3. through the removal of part of the soil, the requirement on the force application of a user can be reduced in the process that the drill bit 1 is finally removed from the soil, and the purpose of reducing the operation difficulty is achieved;
4. the soil between the guide rod 2 and the material taking sleeve 5 is completely distributed according to the distribution form in the soil layer, so that the sampling result is more accurate;
5. in the material taking process, the drill bit 1 provides vertical upward thrust on the soil on the drill bit 1 at the bottom, so that no soil is omitted, and the soil with resistance provided for the drill bit 1 is low in compaction degree due to the fact that part of the soil is moved out, and the difficulty in final material taking is reduced;
6. during sampling, the sampling depth can be expanded when the length and strength of the whole sampling device meet the requirements.
As a preferred example of the above embodiment, as shown in fig. 3, the diameter of the drilling range of the drill bit 1 is 1.2 to 1.5 times of the diameter of the bottom surface 11a, i.e., D1 in the drawing is 1.2 to 1.5 times of D2, and the selection of the above range combines two reasons, namely, firstly, the strength of the rotary vane structure 12 needs to be ensured, and when the rotary vane structure extends for an excessively long distance relative to the conical main body 11, the strength is difficult to ensure, so the upper limit of the diameter is limited; secondly, it is required to ensure that after the removing structure 3 and the stirring structure 4 drive part of the soil to move out, enough crushed and unremoved part of the soil still exists on the periphery, so that the part of the soil can be effectively backfilled to the space originally occupied by the removing structure 3 and the stirring structure 4, and the sufficient soil is sampled; in the above embodiment, there is a part of the reason that the diameter of the piston head 31 is smaller than or equal to the diameter of the bottom surface 11a, so as to avoid the shortage of the final backfilling soil; of course, in the above embodiment, the smaller the pitch of the conical helix distributed by the vane structure 12, the better the breaking effect on the soil.
In the application process of the sampling device, the sampling device is more suitable for the condition that the soil humidity is below a set range, and a drier soil layer structure can obtain a better state in the backfilling process.
The following embodiments are provided for the form of the stirring structure 4: the stirring structure 4 comprises a plurality of metal wires 41, and each metal wire 41 is uniformly distributed around the piston rod 32 and is arranged in parallel with the piston rod 32; the end of the periphery of the piston rod 32, which is far away from the piston head 31, is provided with a mounting disc 42, one end of the wire 41 is fixed relative to the mounting disc 42, and the other end of the wire 41 is fixed relative to the piston head 31.
As shown in fig. 6, the stirring structure 4 and the rejection structure 3 in the present embodiment are shown, and such a stirring structure 4 obtains a space for soil to enter between the wire 41 and the piston rod 32, and between the wire 41 and the wire 41 by the wire 41 being parallel to the piston rod 32.
In the invention, the metal wires 41 with certain elasticity are adopted, so that the damage probability can be reduced through proper deformation when the metal wires are subjected to resistance from soil, and meanwhile, the diameter of the metal wires can be reduced as much as possible on the premise of meeting the strength requirement, so that the soil is more labor-saving to damage, wherein the arrangement density of the metal wires 41 is not too high, the manufacturing difficulty of the sampling device can be improved when the metal wires are too large, and the arrangement number is preferably selected between 1~6.
In this way, the rejecting structure 3 and the stirring structure 4 are combined into a complete integrated mechanism as shown in fig. 6, and the stability of the rejecting structure and the stirring structure relative to the position of the drill bit 1 can be effectively ensured in the processes of entering and removing soil. In this optimization scheme, through 41 as the structure of realizing stirring and soil breakage in the stirring structure 4 of wire, reduce cost, and be convenient for change.
As a specific mode of fixing one end of the wire 41 to the mounting plate 42, as shown in fig. 7, as a preferable mode of the above embodiment, the mounting plate 42 is provided with first through holes 42a in one-to-one correspondence with the wires 41; the wire 41 penetrates the first through hole 42a to obtain a lead-out section; the leading-out section of each wire 41 is fixed to the outer surface of the piston rod 32 by being pressed by a locking structure 43 sleeved on the periphery of the piston rod 32.
In the process of selecting the locking structure 43, a hoop structure is a preferred embodiment, is easy to obtain, and has various types for direct selection; the manner of fixing the wire 41 in the above-described manner may specifically adopt the following procedure, the pre-locking of the wire 41 being first achieved by operating the locking structure 43, the pre-locking being intended to achieve the following objectives: the end of the leading-out section of the metal wire 41 applies a certain degree of tension to the metal wire 41, so that the metal wire 41 can move relative to the locking structure 43 to obtain the adjustment of the tension, the pre-locking aims to ensure that each metal wire 41 obtains a proper tension, the use effect is ensured, and after the pre-locking is completed, the metal wire 41 can be stably fixed by further improving the locking force of the locking structure 43.
In the present invention, the wire 41 needs to have enough tension to stir the soil according to a stable track and to cut the soil during stirring, and when the wire is too soft and swings, the wire has a poor cutting effect on the soil and increases the resistance of the drill bit 1 to screw in. The mode of the invention can repeatedly realize multiple times of tensioning when the metal wire 41 is loosened due to multiple times of use, thereby always keeping a stable use state.
As a preference of the above embodiment, the end of the piston head 31 facing the bottom surface 11a is provided with a retraction space, the piston head 31 is further provided with a second through hole 31a, the retraction space accommodates the end of the wire 41 entering through the second through hole 31a, and the open end of the retraction space is closed by a cover plate.
As shown in fig. 9 and 10, in the present invention, the installation of the wire 41 is facilitated by the provision of the retraction space, and in particular, after the wire 41 is inserted into the retraction space, the end of the wire 41 is provided with an enlarged portion which cannot penetrate the second through hole 31a by knotting or providing a manner that the locking nail 41a is clamped to the outside of the wire 41, so that stable end fixing can be achieved.
In the preferred embodiment, the optimized manner of the retracted space is adopted, and the manner of pre-locking the wire 41 by the locking structure 43 is preferably adopted, in a specific implementation process, an enlarged portion can be obtained by arranging the locking nail 41a and the like at the end of the wire 41, then the wire 41 can penetrate from the second through hole 31a to the first through hole 42a on the mounting plate 42, and then the wire 41 is fixed by the locking structure 43, which is also convenient in the process of replacing the wire 41.
A threaded section and an extrusion structure in threaded connection with the threaded section are arranged on the periphery of the guide rod 2; the pressing structure provides a pressing force toward the bottom surface 11a to the piston rod 32 fitted around the outer periphery of the guide rod 2 by moving on the threaded section. Through this kind of mode, can guarantee at the in-process that whole sampling device got into soil, can make stirring structure 4 and reject structure 3 and obtain stable location, simultaneously, it is also comparatively convenient at the in-process that the two shifted out, only need through the mode of antiport extrusion structure, can make stirring structure 4 and reject structure 3 and obtain the state that can freely dismantle.
When securing the mixing structure 4 and the rejection structure 3 in a stable manner, the pressing structure can be designed in two stacked manner, so that loosening during use is avoided, while the simplest embodiment uses a nut as the pressing structure, so that the positioning purpose of the preferred embodiment can be achieved at the lowest cost.
As a preferable example of the above embodiment, as shown in fig. 12, the device further includes a guide sleeve 6, which is sleeved on the periphery of the guide rod 2 and fixedly connected with the guide rod 2 after the removing structure 3 and the stirring structure 4 are removed; get the in-process of material sleeve 5 inserting soil, get the laminating of the outer wall of the inner wall of material sleeve 5 and uide bushing 6 and obtain the direction.
Through the setting of uide bushing 6 for get material sleeve 5 accessible and follow the linear direction with its laminating and enter into soil, thereby can be accurate reach with the position of the laminating of circular cone main part 11, avoid forming the condition that the open end makes soil take place to drop at the in-process that is promoted because of the deviation of position in the bottom.
In the specific implementation process, the guide sleeve 6 can be fixed in various ways, when the outer wall of the guide rod 2 is in a polished rod form, a bolt hole can be arranged at a set position on the guide rod, and the support for the guide sleeve 6 is realized by inserting a bolt into the bolt hole, of course, the inner wall of the guide sleeve 6 to be ensured is attached to the outer wall of the guide rod 2; or, when the outside of guide bar 2 has the external screw thread, can set up the internal thread at 6 inner walls of uide bushing to realize fixing through thread fit's mode, the screw thread that guide bar 2 installed above-mentioned extrusion structure and the screw thread that uide bushing 6 was installed can be general, thereby reduces the processing degree of difficulty to guide bar 2.
When the soil sample is sampled by the material taking sleeve 5 and the sampling device is moved out of the soil, the soil can be gradually moved out of the space between the material taking sleeve 5 and the guide rod 2 in a mode of slowly separating the drill bit 1 from the material taking sleeve 5 from the bottom layer to the top layer, so that the soil at each position corresponds to the actual sampling depth.
Preferably, in the above embodiment, the guide sleeve 6 is chamfered at least at one axial end outside thereof. In the use process, the chamfer faces the direction of installing the material taking sleeve 5, so that the material taking sleeve 5 can get a guide when entering, and the guide sleeve 6 is better matched with the material taking sleeve. Wherein, the chamfer can be fillet or chamfer angle, all can realize above-mentioned technical purpose.
Or the inner wall of at least one end of the material taking sleeve 5 is in a divergent state at the port, and the outer wall of the material taking sleeve 5 is a cylinder. Thereby can make between the interior outer wall at the port department through the state of dispersing form the edge that thickness reduces, this kind of structure setting can be at the edge formation sword column structure and the guide structure of getting material sleeve 5 to it is more convenient when installing towards uide bushing 6 to make on the one hand, also can reduce the requirement to user's application of force when getting into soil simultaneously.
The use method of the adjustable soil sampling device for environmental protection detection comprises the following steps:
s1: combining the stirring structure 4, the rejecting structure 3, the drill bit 1 and the guide rod 2 to be used as a first state of the sampling device; in the first state, it is required to ensure that the stirring structure 4 and the removing structure 3 do not rotate around the guide rod 2, so that the subsequent stable acting force on the soil is ensured;
s2: the guide rod 2 is rotated, and the drill bit 1, the stirring structure 4 and the removing structure 3 are synchronously driven to rotate through the guide rod 2 until the drill bit 1 drills to a set depth; in the process, the stirring structure 4 stirs the crushed soil, so that the soil can obtain a softer and more uniform state;
s3: the stirring structure 4 and the removing structure 3 are moved out of the soil along the axial direction of the guide rod 2, and the linear motion speed is lower than the set speed; in this step, the speed is limited in order to allow sufficient time between the piston head 31 and the bottom surface 11a of the conical body 11 to obtain effective filling, thereby avoiding the generation of soil voids; after the stirring structure is moved out, loose soil is distributed around the guide rod 2, in the process, in order to further reduce the probability of the holes, the guide rod 2 can be properly twisted in the process of moving out the stirring structure 4 and the removing structure 3, and the twisting has low requirement on force application because the soil has a certain loose degree, so that the operation is convenient;
s4: inserting the material taking sleeve 5 into the soil according to the axial direction of the guide rod 2, sleeving the material taking sleeve on the periphery of the guide rod 2, and forming a space for containing the soil with the guide rod 2 until the material taking sleeve abuts against the bottom surface 11a of the conical main body 11, so that the collection of the sampled soil in the space is completed;
s5: the guide rod 2 is pulled, and the drill bit 1, the material taking sleeve 5 and the soil in the space are synchronously driven to move out;
s6: the separation drill bit 1 with get material sleeve 5 for get soil in the material sleeve 5 and remove in getting material sleeve 5 from one side to the opposite side that is close to drill bit 1 gradually, in order to detect. In the moving-out process, the soil is moved out according to the condition that the bottom layer is the top layer, and under the condition that the uniform moving-out is ensured as far as possible, the soil layer depth corresponding to the moved-out soil can be determined according to the proportional relation between the spreading length and the actual sampling depth.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Soil sampling device with adjustable be used for environmental protection to detect, its characterized in that includes:
the drill bit comprises a conical main body and rotary vane structures, wherein the rotary vane structures are distributed around the periphery of the conical main body along a conical spiral line, and the diameter of a drilling range is larger than the diameter of the bottom surface of the conical main body;
one end of the guide rod is fixedly connected with the bottom surface and is arranged along the axial direction of the conical main body;
a stirring structure for stirring the soil crushed by the drill bit in the process that the drill bit drills into the soil;
the removing structure is fixedly connected with the stirring structure, is attached to the bottom surface in the process that the drill bit enters the soil, drives the soil located in the set range above the bottom surface and the stirring structure to move out of the drilled hole position through external force before the drill bit reaches the specified depth and moves out of the soil, and comprises a piston head and a piston rod which are coaxially sleeved on the periphery of the guide rod, wherein the diameter of the piston head is smaller than or equal to that of the bottom surface;
get the material sleeve stir the structure with reject the structure and shift out the back in soil, and the drill bit certainly before soil shifts out, the cover is located the guide bar is peripheral, and with form the space that holds soil between the guide bar, along with shifting out in step of drill bit and realizing the sample of soil in the space.
2. The adjustable soil sampling device for environmental protection detection as claimed in claim 1, wherein the diameter of the drilling range of the drill bit is 1.2 to 1.5 times of the diameter of the bottom surface.
3. The adjustable soil sampling device for environmental detection of claim 1, wherein the stirring structure comprises a plurality of metal wires, each of the metal wires is uniformly distributed around the piston rod and is arranged in parallel with the piston rod;
and a mounting disc is arranged at one end of the periphery of the piston rod, which is far away from the piston head, one end of the metal wire is fixed relative to the mounting disc, and the other end of the metal wire is fixed relative to the piston head.
4. The adjustable soil sampling device for environmental detection of claim 3, wherein the mounting plate is provided with first through holes corresponding to the metal wires one to one;
the metal wire penetrates through the first through hole to obtain a leading-out section;
the leading-out section of each metal wire is extruded and fixed on the outer surface of the piston rod through a locking structure sleeved on the periphery of the piston rod.
5. The adjustable soil sampling device for environmental protection detection according to claim 3 or 4, wherein the end of the piston head facing the bottom surface is provided with a retraction space, the piston head is further provided with a second through hole, the retraction space accommodates the end of the metal wire entering through the second through hole, and the open end of the retraction space is closed by a cover plate.
6. The adjustable soil sampling device for environmental detection as recited in claim 1, wherein a threaded section and an extrusion structure in threaded connection with the threaded section are arranged on the periphery of the guide rod;
the extrusion structure moves on the thread section to provide extrusion force towards the bottom surface for the piston rod sleeved on the periphery of the guide rod.
7. The adjustable soil sampling device for environment-friendly detection as claimed in claim 1 or 6, further comprising a guide sleeve, wherein after the rejecting structure and the stirring structure are moved out, the guide sleeve is sleeved on the periphery of the guide rod and is fixedly connected with the guide rod;
get the material telescopic in-process of inserting soil, get telescopic inner wall with the laminating of the outer wall of uide bushing and obtain the direction.
8. The adjustable soil sampling device for environmental testing as recited in claim 7, wherein the guide sleeve is provided with a chamfer on an outer side of at least one axial end thereof.
9. The soil sampling device with the adjustable be used for environmental protection to detect of claim 7, characterized in that, the inner wall of getting material sleeve at least one end becomes the state of dispersing at the port department, it is the cylinder to get material sleeve outer wall.
10. The method for using the adjustable soil sampling device for environmental testing as recited in claim 1, comprising the steps of:
combining the stirring structure, the removing structure, the drill bit and the guide rod;
the guide rod is rotated, and the drill bit, the stirring structure and the removing structure are synchronously driven to rotate through the guide rod until the drill bit drills to a set depth;
the stirring structure and the removing structure are moved out of the soil along the axial direction of the guide rod, and the linear motion speed is lower than the set speed;
inserting a material taking sleeve into soil according to the axial direction of the guide rod, sleeving the material taking sleeve on the periphery of the guide rod, and forming a space for containing the soil between the material taking sleeve and the guide rod until the material taking sleeve is abutted against the bottom surface of the conical main body;
pulling the guide rod, and synchronously driving the drill bit, the material taking sleeve and the soil in the space to move out;
the drill bit and the material taking sleeve are separated, so that soil in the material taking sleeve is gradually moved out from the material taking sleeve from one side close to the drill bit to the other side for detection.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358929A (en) * | 2023-06-01 | 2023-06-30 | 安徽路港通工程试验检测有限公司 | Soil sampling device and sampling method for highway engineering |
Citations (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58135935A (en) * | 1981-12-26 | 1983-08-12 | インジエニエ−アスビユロ−・エイ・ピイ・バン・デン・ベルク・ビイ・ブイ | Soil survey device |
| AU2003229424A1 (en) * | 2002-05-13 | 2003-11-11 | The University Of Manitoba | Method and probe for measuring hydraulic conductivity of soil |
| JP2005076200A (en) * | 2003-08-28 | 2005-03-24 | Shimizu Corp | Soil sampling apparatus and soil sampling method |
| CN101101241A (en) * | 2007-07-20 | 2008-01-09 | 浙江大学 | Original soft clay hollow cylinder sample manufacture method |
| CN101101242A (en) * | 2007-07-20 | 2008-01-09 | 浙江大学 | Original soft clay hollow cylinder sample inner core cutting device |
| JP2011127370A (en) * | 2009-12-18 | 2011-06-30 | Kumagai Gumi Co Ltd | Underground soil sampling method |
| CN102323104A (en) * | 2011-08-31 | 2012-01-18 | 吉林大学 | A kind of original state soil sample barrel that is used for sandy friable soil |
| CN103969081A (en) * | 2014-04-11 | 2014-08-06 | 北京交通大学 | Piston type sampler |
| CN104165780A (en) * | 2014-07-29 | 2014-11-26 | 中南林业科技大学 | Soil sampling method and device for undisturbed soil samples with roots |
| WO2016070252A1 (en) * | 2014-11-03 | 2016-05-12 | Universidad Federal Do Rio De Janeiro | Sampling device for soft and very soft soils with cable-actuated jaws and soil flow between the jaws and the sampling tube |
| CN107436248A (en) * | 2017-09-12 | 2017-12-05 | 莘县谷升农业科技有限公司 | A kind of novel soil sampler |
| CN207280779U (en) * | 2017-07-29 | 2018-04-27 | 南京白云环境科技集团股份有限公司 | The detection device of methyl tertiary butyl ether(MTBE) in a kind of purge and trap-Gc-mss soil |
| CN207540808U (en) * | 2017-08-30 | 2018-06-26 | 宿州学院 | A kind of frozen soil sample collection device |
| CN108303286A (en) * | 2018-05-04 | 2018-07-20 | 芜湖市三山区绿色食品产业协会 | A kind of soil sample machine |
| CN108426737A (en) * | 2018-06-22 | 2018-08-21 | 姚岚 | A kind of mechanical agricultural soil collecting device |
| CN108572091A (en) * | 2018-07-06 | 2018-09-25 | 安徽机电职业技术学院 | A kind of soil property discriminating sampling device that fetches earth |
| CN108645996A (en) * | 2018-05-09 | 2018-10-12 | 台州创兴环保科技有限公司 | Soil pollution detection device |
| JP2019019595A (en) * | 2017-07-19 | 2019-02-07 | 一般社団法人地盤工房 | Soil sampling device and soil sampling method |
| CN209148341U (en) * | 2018-12-04 | 2019-07-23 | 阿坝藏族羌族自治州林业科学技术研究所 | A kind of dry valley soil property sampler |
| CN210533764U (en) * | 2019-09-05 | 2020-05-15 | 绍兴市三合检测技术有限公司 | Depth-fixed soil sampler |
| CN111272471A (en) * | 2020-03-23 | 2020-06-12 | 陈紫璇 | Soil detection is with sampling device that becomes more meticulous |
| CN210953439U (en) * | 2019-06-18 | 2020-07-07 | 重庆渝佳环境影响评价有限公司 | A soil sampling device for soil environment harm aassessment |
| CN111707804A (en) * | 2020-05-27 | 2020-09-25 | 中国路桥工程有限责任公司 | Geological survey equipment and mountain road alignment design method |
| CN111766095A (en) * | 2020-06-24 | 2020-10-13 | 生态环境部南京环境科学研究所 | Layered sampling device for soil detection and using method thereof |
| CN212931977U (en) * | 2020-09-21 | 2021-04-09 | 山西靖田会泽环境科技有限公司 | Soil sampling device for soil detection and restoration |
| CN112763261A (en) * | 2021-01-15 | 2021-05-07 | 安徽信科检测有限公司 | Soil pollution detection sampling device of degree of depth sampling |
| CN213580170U (en) * | 2020-09-27 | 2021-06-29 | 刘贺贺 | Rock-soil sampling device for marine geological survey |
| CN214066564U (en) * | 2020-12-30 | 2021-08-27 | 洪文珍 | Agricultural soil detection sampling device |
| CN113503133A (en) * | 2021-07-12 | 2021-10-15 | 辽东学院 | Novel soil sampling drill and using method thereof |
| CN113551937A (en) * | 2021-08-26 | 2021-10-26 | 上海华简检测技术有限公司 | Soil analysis and detection device and method |
| CN214894135U (en) * | 2020-11-26 | 2021-11-26 | 新沂宏通水泥制品有限公司 | Novel environmental protection soil sampling device |
| CN114018630A (en) * | 2021-11-12 | 2022-02-08 | 彭茹冰 | Soil detection device for land environmental protection and use method thereof |
| CN216361694U (en) * | 2021-12-10 | 2022-04-22 | 承德华勘五一四地矿测试研究有限公司 | Sampling device for soil detection |
| CN114486341A (en) * | 2022-02-23 | 2022-05-13 | 陇东学院 | A core equipment is got in drilling for geological exploration |
| CN216559812U (en) * | 2021-10-30 | 2022-05-17 | 福建拓普检测技术有限公司 | Agricultural is arable land and is administered sampling equipment with soil |
| CN217237244U (en) * | 2021-12-15 | 2022-08-19 | 长沙湘峰园农业科技有限公司 | Agricultural soil detection sampling device |
| CN114942159A (en) * | 2022-06-01 | 2022-08-26 | 中国农业科学院农田灌溉研究所 | Layered sampling device for soil detection |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562717B (en) * | 2018-05-09 | 2021-04-16 | 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) | Portable soil pollution diagnostic equipment |
| CN208313617U (en) * | 2018-06-22 | 2019-01-01 | 姚岚 | A kind of mechanical agricultural soil acquisition equipment |
| CN209707158U (en) * | 2019-04-08 | 2019-11-29 | 江苏绿泰检测科技有限公司 | A kind of Soil K+adsorption fining soil sampling apparatus |
| CN211042754U (en) * | 2019-05-14 | 2020-07-17 | 邯郸百世创联电子科技有限公司 | High-efficient sampling device of soil for environmental monitoring |
| CN110441086A (en) * | 2019-08-08 | 2019-11-12 | 河北工程大学 | A kind of selenium-rich soil detection device and its application method |
| CN211292064U (en) * | 2019-11-05 | 2020-08-18 | 山西金源祥土地规划设计有限公司 | Engineering is surveyed and is used quick sampling device of soil |
| CN211061229U (en) * | 2019-11-05 | 2020-07-21 | 海南东大洋混凝土有限公司 | Novel sampling equipment for concrete detection |
| CN211602509U (en) * | 2020-03-12 | 2020-09-29 | 西北农林科技大学 | Soil detection is with soil sampling device that becomes more meticulous |
| CN211697029U (en) * | 2020-03-13 | 2020-10-16 | 刘可心 | Engineering geology reconnaissance is with soil sample collection system |
| JP7336407B2 (en) * | 2020-03-23 | 2023-08-31 | 株式会社フジタ | Soil sampler |
| CN212844428U (en) * | 2020-06-12 | 2021-03-30 | 湖北华中公路工程监理咨询有限公司 | Engineering supervision's sampling device |
| CN112504735B (en) * | 2020-12-17 | 2023-04-07 | 益铭检测技术服务(青岛)有限公司 | Soil detection method |
| CN112763260A (en) * | 2020-12-31 | 2021-05-07 | 来安县塔鑫建材有限公司 | Recycled concrete sampling device |
-
2022
- 2022-12-01 CN CN202211529896.3A patent/CN115615741B/en active Active
Patent Citations (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58135935A (en) * | 1981-12-26 | 1983-08-12 | インジエニエ−アスビユロ−・エイ・ピイ・バン・デン・ベルク・ビイ・ブイ | Soil survey device |
| AU2003229424A1 (en) * | 2002-05-13 | 2003-11-11 | The University Of Manitoba | Method and probe for measuring hydraulic conductivity of soil |
| JP2005076200A (en) * | 2003-08-28 | 2005-03-24 | Shimizu Corp | Soil sampling apparatus and soil sampling method |
| CN101101241A (en) * | 2007-07-20 | 2008-01-09 | 浙江大学 | Original soft clay hollow cylinder sample manufacture method |
| CN101101242A (en) * | 2007-07-20 | 2008-01-09 | 浙江大学 | Original soft clay hollow cylinder sample inner core cutting device |
| JP2011127370A (en) * | 2009-12-18 | 2011-06-30 | Kumagai Gumi Co Ltd | Underground soil sampling method |
| CN102323104A (en) * | 2011-08-31 | 2012-01-18 | 吉林大学 | A kind of original state soil sample barrel that is used for sandy friable soil |
| CN103969081A (en) * | 2014-04-11 | 2014-08-06 | 北京交通大学 | Piston type sampler |
| CN104165780A (en) * | 2014-07-29 | 2014-11-26 | 中南林业科技大学 | Soil sampling method and device for undisturbed soil samples with roots |
| WO2016070252A1 (en) * | 2014-11-03 | 2016-05-12 | Universidad Federal Do Rio De Janeiro | Sampling device for soft and very soft soils with cable-actuated jaws and soil flow between the jaws and the sampling tube |
| JP2019019595A (en) * | 2017-07-19 | 2019-02-07 | 一般社団法人地盤工房 | Soil sampling device and soil sampling method |
| CN207280779U (en) * | 2017-07-29 | 2018-04-27 | 南京白云环境科技集团股份有限公司 | The detection device of methyl tertiary butyl ether(MTBE) in a kind of purge and trap-Gc-mss soil |
| CN207540808U (en) * | 2017-08-30 | 2018-06-26 | 宿州学院 | A kind of frozen soil sample collection device |
| CN107436248A (en) * | 2017-09-12 | 2017-12-05 | 莘县谷升农业科技有限公司 | A kind of novel soil sampler |
| CN108303286A (en) * | 2018-05-04 | 2018-07-20 | 芜湖市三山区绿色食品产业协会 | A kind of soil sample machine |
| CN108645996A (en) * | 2018-05-09 | 2018-10-12 | 台州创兴环保科技有限公司 | Soil pollution detection device |
| CN108426737A (en) * | 2018-06-22 | 2018-08-21 | 姚岚 | A kind of mechanical agricultural soil collecting device |
| CN108572091A (en) * | 2018-07-06 | 2018-09-25 | 安徽机电职业技术学院 | A kind of soil property discriminating sampling device that fetches earth |
| CN209148341U (en) * | 2018-12-04 | 2019-07-23 | 阿坝藏族羌族自治州林业科学技术研究所 | A kind of dry valley soil property sampler |
| CN210953439U (en) * | 2019-06-18 | 2020-07-07 | 重庆渝佳环境影响评价有限公司 | A soil sampling device for soil environment harm aassessment |
| CN210533764U (en) * | 2019-09-05 | 2020-05-15 | 绍兴市三合检测技术有限公司 | Depth-fixed soil sampler |
| CN111272471A (en) * | 2020-03-23 | 2020-06-12 | 陈紫璇 | Soil detection is with sampling device that becomes more meticulous |
| CN111707804A (en) * | 2020-05-27 | 2020-09-25 | 中国路桥工程有限责任公司 | Geological survey equipment and mountain road alignment design method |
| CN111766095A (en) * | 2020-06-24 | 2020-10-13 | 生态环境部南京环境科学研究所 | Layered sampling device for soil detection and using method thereof |
| CN212931977U (en) * | 2020-09-21 | 2021-04-09 | 山西靖田会泽环境科技有限公司 | Soil sampling device for soil detection and restoration |
| CN213580170U (en) * | 2020-09-27 | 2021-06-29 | 刘贺贺 | Rock-soil sampling device for marine geological survey |
| CN214894135U (en) * | 2020-11-26 | 2021-11-26 | 新沂宏通水泥制品有限公司 | Novel environmental protection soil sampling device |
| CN214066564U (en) * | 2020-12-30 | 2021-08-27 | 洪文珍 | Agricultural soil detection sampling device |
| CN112763261A (en) * | 2021-01-15 | 2021-05-07 | 安徽信科检测有限公司 | Soil pollution detection sampling device of degree of depth sampling |
| CN113503133A (en) * | 2021-07-12 | 2021-10-15 | 辽东学院 | Novel soil sampling drill and using method thereof |
| CN113551937A (en) * | 2021-08-26 | 2021-10-26 | 上海华简检测技术有限公司 | Soil analysis and detection device and method |
| CN216559812U (en) * | 2021-10-30 | 2022-05-17 | 福建拓普检测技术有限公司 | Agricultural is arable land and is administered sampling equipment with soil |
| CN114018630A (en) * | 2021-11-12 | 2022-02-08 | 彭茹冰 | Soil detection device for land environmental protection and use method thereof |
| CN216361694U (en) * | 2021-12-10 | 2022-04-22 | 承德华勘五一四地矿测试研究有限公司 | Sampling device for soil detection |
| CN217237244U (en) * | 2021-12-15 | 2022-08-19 | 长沙湘峰园农业科技有限公司 | Agricultural soil detection sampling device |
| CN114486341A (en) * | 2022-02-23 | 2022-05-13 | 陇东学院 | A core equipment is got in drilling for geological exploration |
| CN114942159A (en) * | 2022-06-01 | 2022-08-26 | 中国农业科学院农田灌溉研究所 | Layered sampling device for soil detection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358929A (en) * | 2023-06-01 | 2023-06-30 | 安徽路港通工程试验检测有限公司 | Soil sampling device and sampling method for highway engineering |
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