CN212406714U - Undisturbed sampling drilling tool adopting semi-closed pipe structure - Google Patents
Undisturbed sampling drilling tool adopting semi-closed pipe structure Download PDFInfo
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- CN212406714U CN212406714U CN202021038424.4U CN202021038424U CN212406714U CN 212406714 U CN212406714 U CN 212406714U CN 202021038424 U CN202021038424 U CN 202021038424U CN 212406714 U CN212406714 U CN 212406714U
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Abstract
The utility model relates to an adopt undisturbed sample drilling tool of half-closed tube structure, including strikeing the holding shaft, strikeing holding shaft sub-unit connection and strikeing outer tube upper portion, strikeing outer tube sub-unit connection sample drill bit, strikeing the holding shaft, strikeing the outer tube, the drilling tool has constituteed the drilling tool skin to the sample drill bit, and the inside top of drilling tool sets up the shock pad, and the shock pad below is strikeed the cap through the inner tube and is connected and assault inner tube upper portion, and it passes through sampling tube articulate sample pipe upper portion to strike inner tube lower part, and sample pipe sub-unit connection half-closed tube connects, and. The utility model discloses simple structure, semi-closed sample pipe two lamellas are mutual interlock form and cut open, and after the combination, the body is pressed and can not expand, and semi-closed sample pipe upper end connects sampling pipe joint, and sample pipe joint one end external screw thread can with strike inner tube connection, one end internal thread and sample union coupling. The lower end of the semi-closed sample tube is connected with a semi-closed tube joint. The three are connected, so that the split semi-closed sample pipe forms a whole, and the strength is close to the strength of a complete pipe.
Description
Technical Field
The utility model belongs to the technical field of the exploration sampling drilling tool, a undisturbed sampling drilling tool who adopts semi-closed tube structure is related to.
Background
Traditional engineering geological exploration is mainly inclined to analyze the physical properties of geological conditions. During the drilling and sampling process, water, mud or foam is often used to cool and lubricate the drilling tool.
In the field pollutant investigation, chemical analysis of heavy metal, volatile gas, pesticide residue and the like needs to be carried out on the geology. Traditional geological exploration drilling sampling can bring other substances such as water, mud or foam into, causes the interference to the sample, influences the representativeness of taking out the sample.
Modern undisturbed sampling in environment mainly uses a main push type soil sampling drilling tool (see patent CN 107975370A). The drilling tool adopts an impact direct pushing method to press soil to be sampled into the sampling pipe, then the sampling pipe is taken out, and the collected sample is analyzed. The sampling tube of the drilling tool is a plastic hollow cylindrical tube, the number of collected samples is influenced by the diameter of the sampling tube, and the quality of the samples collected per meter at a time is constant. If the mass of a sample collected per meter at a time needs to be increased, sampling tubes with different diameters need to be customized, and the sampling outer tube also needs to be changed correspondingly. Undisturbed sampling which cannot meet different requirements. And when the sampled stratum is complex, the plastic sample pipe is easy to bend and break under stress.
Disclosure of Invention
An object of the utility model is to provide an adopt undisturbed sample drilling tool of half-closed tube structure can solve foretell problem, and the sample quality is high.
According to the utility model provides a technical scheme: the utility model provides an adopt undisturbed sample drilling tool of half-closed tube structure, holds the axle including assaulting, assault and hold a sub-unit connection and assault outer tube upper portion, assault outer tube sub-unit connection sample drill bit, assault and hold the axle, assault the outer tube, the sample drill bit has constituteed the drilling tool skin, the inside top of drilling tool sets up the shock pad, the shock pad below is assaulted the cap through the inner tube and is connected and assault inner tube upper portion, assault the inner tube lower part and pass through sampling tube coupling connection sample pipe upper portion, sample pipe sub-unit connection.
As a further improvement of the utility model, the lining film is sleeved in the sample tube, the opening of the lining film is positioned at the lower part, the support hoop is placed in the opening of the lining film, and the barb is placed in the support hoop.
As a further improvement of the utility model, the sampling tube connects upper portion to set up the exhaust chamber, exhaust chamber below intercommunication exhaust hole, the exhaust hole top sets up the steel ball.
As a further improvement of the utility model, the outer pipe and the inner pipe can be connected in series by a plurality of units through a thread structure.
As a further improvement of the utility model, the support hoop is made of elastic material and is of an annular structure, and the deformation groove is vertically formed in the support hoop.
As a further improvement, the barb is made of elastic material, and is an arc-shaped structure with an upward arc surface, and the middle part of the barb is composed of a plurality of petal-shaped elastic pieces.
As a further improvement, the appearance pipe is the components of a whole that can function independently structure, including first half appearance pipe and second half appearance pipe, first half appearance pipe with take inclination location structure between the second half appearance pipe.
As a further improvement, the lower part of the shock pad is provided with a positioning rod, the upper part of the inner pipe impact cap is provided with a positioning hole, and the inner pipe impact cap and the positioning hole are matched.
As a further improvement, the lower part of the sampling drill bit is an annular cutting edge, and the middle part of the sampling drill bit is vertically provided with a feeding channel.
As a further improvement, the impact holding shaft upper part is an impact bearing part, and a shock pad cavity and an inner tube impact cap cavity are sequentially arranged in the impact holding shaft lower part.
The utility model discloses an actively advance the effect and lie in:
1. the utility model has simple structure and small occupied space; the two halves of the half-closed sample tube are cut open in an occluded manner, and the tube body cannot expand under pressure after combination.
2. The utility model discloses the sampling tube connects is connected to semi-close appearance pipe upper end, appearance coupling one end external screw thread can with strike inner tube connection, one end internal thread and appearance union coupling. The lower end of the semi-closed sample tube is connected with a semi-closed tube joint. The three are connected, so that the split semi-closed sample pipe forms a whole, and the strength is close to the strength of a complete pipe.
3. The utility model discloses the inside plastics lining film that is equipped with of semi-closed appearance pipe. The plastic lining film isolates the collected sample from the semi-closed sample tube, so that the sample can be taken out from the semi-closed sample tube more easily, and the property of the collected sample cannot be influenced by the sample tube. The plastic lining film is rectangular, is cut to the required size according to the perimeter and the length of the inner diameter of the sample tube, and is placed inside the semi-closed sample tube in a curling mode. The lining film can be cut according to the size of the half-closed sample tube at will without being customized.
4. The utility model discloses semi-closed appearance pipe lower extreme is equipped with props the hoop, props the hoop and is the elasticity material, makes the lining membrane hug closely semi-closed appearance pipe inner wall, prevents to take off the deformation with lining membrane extrusion after the sample gets into appearance pipe.
5. The utility model discloses half close appearance pipe lower extreme props hoop rear end, is equipped with the barb, and the barb is the elasticity material, prevents that the sample that has got into appearance pipe from spilling.
Drawings
Fig. 1 is a schematic view of the exploded structure of the present invention.
Fig. 2 is a schematic structural diagram of the present invention during operation.
Fig. 3 is a schematic structural view of the impact grip of the present invention.
Fig. 4 is a schematic structural diagram of the sampling drill of the present invention.
Fig. 5 is a schematic structural view of the shock pad of the present invention.
Fig. 6 is a schematic structural view of the inner tube impact cap of the present invention.
Fig. 7 is a schematic structural view of the hoop of the present invention.
Fig. 8 is a schematic structural view of the barb of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In the figures 1-8, the device comprises an impact holding shaft 1, an impact bearing part 1-1, a shock pad cavity 1-2, an inner tube impact cap cavity 1-3, an upper connection surface 1-4 of an impact outer tube, an impact outer tube 2, a sampling drill bit 3, a lower connection thread 3-1 of the impact outer tube, an annular cutting edge 3-2, a feeding channel 3-3, a screw plug 4, a steel ball 5, a sampling tube joint 6, a first half sample tube 7, a lining film 8, a second half sample tube 9, a support hoop 10, a deformation groove 10-1, an agnail 11, an elastic sheet 11-1, a half sample tube joint 12, a shock pad 13, a positioning rod 13-1, an inner tube impact cap 14, a positioning hole 14-1, an impact inner tube 15 and the like.
As shown in figure 1, the utility model relates to an adopt undisturbed sample drilling tool of half tube structure, including strikeing hold axle 1, strikeing hold axle 1 sub-unit connection and strikeing outer tube 2 upper portions, strikeing outer tube 2 lower part threaded connection sample drill bit 3. Impact and hold axle 1, impact outer tube 2 and sample drill bit 3 and constitute the drilling tool skin, and the inside top of drilling tool sets up shock pad 13, and shock pad 13 below strikes 15 upper portions of inner tube through inner tube impact cap 14 threaded connection, strikes 15 lower parts of inner tube and passes through sampling tube joint 6 threaded connection appearance pipe upper portion, and sampling tube joint 6 upper portions set up the chamber of exhausting, and the chamber below intercommunication exhaust hole of exhausting sets up steel ball 5 above the exhaust hole. The lower part of the sample pipe is connected with a half-joint pipe joint 12 through screw threads. The sample tube is sleeved with a lining film 8, the opening of the lining film 8 is positioned at the lower part, a support hoop 10 is arranged in the opening of the lining film 8, and a barb 11 is arranged in the support hoop 10.
The lining film 8 isolates the collected sample from the semi-closed sample tube, so that the sample can be taken out from the semi-closed sample tube more easily, and the property of the collected sample cannot be influenced by the sample tube. The lining film 8 is rectangular, cut to the required size according to the perimeter and length of the inner diameter of the sample tube, and placed inside the semi-closed sample tube in a curling mode. The lining film 8 can be cut according to the size of the half-closed sample tube at will without being customized.
The outer impact pipe 2 and the inner impact pipe 15 can be formed by connecting a plurality of units in series through a thread structure.
As shown in figure 3, the upper part of the impact holding shaft 1 is an impact bearing part 1-1 used for bearing the downward impact force of the power head, and a shock absorption pad cavity 1-2 and an inner tube impact cap cavity 1-3 are sequentially arranged in the lower part of the impact holding shaft 1. The periphery of the impact cap cavity 1-3 of the inner pipe is an upper connecting surface 1-4 of the impact outer pipe. The upper connecting surfaces 1-4 of the impact outer tube are connected with the upper part of the impact outer tube 2 in a clearance fit manner.
As shown in figure 4, the upper part of the sampling drill bit 3 is provided with a lower connecting thread 3-1 of the impact outer tube, the lower part of the sampling drill bit 3 is provided with an annular cutting edge 3-2, and the middle part of the sampling drill bit 3 is vertically provided with a feed channel 3-3.
As shown in figure 5, the lower part of the shock pad 13 is provided with a positioning rod 13-1, and as shown in figure 6, the upper part of the inner pipe impact cap 14 is provided with a positioning hole 14-1 which are matched with each other. The lower part of the inner pipe impact cap 14 is provided with an impact inner pipe upper thread 14-2.
The positioning rod 13-1 is positioned in the positioning hole 14-1, so that the positions of the shock absorption pad 13 and the inner pipe impact cap 14 are fixed, and the shock absorption process cannot deviate. The upper part of the shock pad 13 is positioned in the shock pad cavity 1-2, and the upper part of the inner tube impact cap 14 is positioned in the inner tube impact cap cavity 1-3, so that the positioning of the impact grip shaft 1, the shock pad 13 and the inner tube impact cap 14 is completed.
The periphery of the upper part of the sampling pipe joint 6 is provided with an impact inner pipe connecting lower thread, the upper part of the sampling pipe joint 6 is connected with a screw plug 4, the upper part of the sampling pipe joint 6 is provided with an exhaust cavity, the lower part of the sampling pipe joint is provided with an exhaust hole, the lower part of the exhaust cavity is communicated with the exhaust hole, and a steel ball 5 is arranged above the exhaust hole. The lower part of the sampling tube joint 6 is provided with a sample tube connecting upper thread.
The sample tube is a split structure and comprises a first half sample tube 7 and a second half sample tube 9. An inclination positioning structure is adopted between the first half sample combining pipe 7 and the second half sample combining pipe 9, specifically, an inclined positioning block and an inclined positioning groove which are matched are arranged on the first half sample combining pipe 7 and the second half sample combining pipe 9, the inclination angle of the inclined positioning block and the inclined positioning groove is 40-50 degrees, after the first half sample combining pipe and the second half sample combining pipe are combined, when the inside of the first half sample combining pipe and the second half sample combining pipe receives radial force of soil, the inclined positioning block and the inclined positioning groove can bear radial component force, and cannot be separated.
As shown in figure 7, the supporting hoop 10 is made of elastic material and is of an annular structure, the deformation groove 10-1 is vertically formed in the supporting hoop 10, the size of the supporting hoop 10 in a normal state is slightly larger than that of the inner wall of the lower part of the sample tube, when the two sides of the deformation groove 10-1 are squeezed to enable the deformation groove 10-1 to be folded, the supporting hoop 10 can be placed into the opening of the lining film 8, then the supporting hoop 10 rebounds, the opening of the lining film 8 is enabled to be tightly attached to the inner wall of the lower part of the sample tube, and the film is prevented from being squeezed and deformed after a sample enters the sample.
As shown in fig. 8, the barb 11 is made of elastic material and has an arc-shaped structure, the arc surface faces upwards, the middle part of the barb 11 is composed of a plurality of petal-shaped elastic pieces 11-1, when soil enters the barb 11 from below, the soil props the elastic pieces 11-1 in the vertical direction to move upwards, and when the soil contacts the barb 11 from above to below, the plurality of petal-shaped elastic pieces 11-1 are mutually collided to prevent the soil from going downwards.
The working process of the utility model is as follows:
as shown in fig. 2, when the drill transmits impact force and static pressure to the impact grip 1, the impact grip 1 drives the impact outer tube 2 and the sampling bit 3 down into the ground.
The outer layer of the drilling tool consisting of the impact holding shaft 1, the impact outer pipe 2 and the sampling drill bit 3 is provided with an inner pipe consisting of a sampling pipe joint 6, a half-closed pipe 7, a half-closed pipe 9 and a half-closed pipe joint 12, and the inner pipe is driven by an inner pipe impact cap 14 and an impact inner pipe 15 to simultaneously and downwards extrude into the ground. The corresponding underground soil is squeezed into an inner pipe consisting of a sampling pipe joint 6, a half-closed pipe 7, a half-closed pipe 9 and a half-closed pipe joint 12 from the A position. The redundant gas in the sample tube pushes the steel ball 5 out of the exhaust hole at the lower part of the sample tube joint 6 and enters the exhaust cavity. The steel ball 5 covers the vent hole immediately, so as to prevent the impurities from influencing the volatile gas value in the soil sample.
Because the length of the impact outer pipe 2 is equal to that of the semi-closed pipe, after the impact outer pipe moves downwards by the length of one outer pipe, a sample in the semi-closed pipe is just full. The impact holding shaft 1 is taken down, the impact inner tube 15 is pulled out upwards, and the inner tube formed by the half-closed tube 7, the half-closed tube 9 and the half-closed tube joint 12 of the sampling tube joint 6 is also taken out. And the threads between the sampling pipe joint 6 and the half-closed pipe are loosened, the threads between the half-closed pipe joint 12 and the sampling pipe are loosened, the half-closed pipe 7 and the half-closed pipe 9 can be easily opened, the lining film 8 is opened, and the sample in the pipe can be taken out.
According to the illustration of fig. 2, the internal parts are connected, 1 impacting inner tube 15 and impacting outer tube 2 are added at the upper end, the downward pushing is continued, and a sample in the stratum with the length of the impacting outer tube can be removed and sequentially increased.
The above description is right the utility model discloses an explanation, not to the utility model discloses a injecing, not violating the utility model discloses under the condition of spirit, the utility model discloses any form's modification can be done.
Claims (10)
1. The utility model provides an adopt undisturbed sample drilling tool of half tube-in-tube structure which characterized in that: the drilling tool is including strikeing holding axle (1), it strikes outer tube (2) upper portion to strike holding axle (1) sub-unit connection, strike outer tube (2) sub-unit connection sample drill bit (3), strike holding axle (1), strike outer tube (2), sample drill bit (3) and constitute the drilling tool skin, the inside top of drilling tool sets up shock pad (13), shock pad (13) below is strikeed cap (14) through the inner tube and is connected impact inner tube (15) upper portion, strike inner tube (15) lower part and connect appearance pipe upper portion through sampling pipe joint (6), appearance pipe sub-unit connection semi-closed pipe joint (12).
2. The undisturbed sampling drilling tool using semi-union structure of claim 1 wherein: lining membrane (8) are established to the cover in the appearance pipe, lining membrane (8) opening is located the lower part, put in lining membrane (8) opening and prop hoop (10), prop and place barb (11) in hoop (10).
3. The undisturbed sampling drilling tool using semi-union structure of claim 1 wherein: an exhaust cavity is arranged at the upper part of the sampling pipe joint (6), an exhaust hole is communicated with the lower part of the exhaust cavity, and a steel ball (5) is arranged above the exhaust hole.
4. The undisturbed sampling drilling tool using semi-union structure of claim 1 wherein: the impact outer pipe (2) and the impact inner pipe (15) can be formed by connecting a plurality of units in series through a thread structure.
5. The undisturbed sampling drilling tool using semi-union structure of claim 2 wherein: the supporting hoop (10) is made of elastic materials and is of an annular structure, and a deformation groove is vertically formed in the supporting hoop (10).
6. The undisturbed sampling drilling tool using semi-union structure of claim 2 wherein: barb (11) are made by elastic material, for the arcuation structure, the cambered surface up, barb (11) middle part comprises polylith lamella form elastic sheet (11-1).
7. The undisturbed sampling drilling tool using semi-union structure of claim 1 wherein: the sample tube is of a split structure and comprises a first half sample tube (7) and a second half sample tube (9), and an inclination positioning structure is adopted between the first half sample tube (7) and the second half sample tube (9).
8. The undisturbed sampling drilling tool using semi-union structure of claim 1 wherein: the lower part of the shock pad (13) is provided with a positioning rod (13-1), and the upper part of the inner pipe impact cap (14) is provided with a positioning hole (14-1) which is matched with the positioning hole.
9. The undisturbed sampling drilling tool using semi-union structure of claim 1 wherein: the lower part of the sampling drill bit (3) is an annular cutting edge (3-2), and the middle part of the sampling drill bit (3) is vertically provided with a feeding channel (3-3).
10. The undisturbed sampling drilling tool using semi-union structure of claim 1 wherein: the upper part of the impact holding shaft (1) is an impact bearing part (1-1), and a shock pad cavity (1-2) and an inner tube impact cap cavity (1-3) are sequentially arranged in the lower part of the impact holding shaft (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021038424.4U CN212406714U (en) | 2020-06-08 | 2020-06-08 | Undisturbed sampling drilling tool adopting semi-closed pipe structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021038424.4U CN212406714U (en) | 2020-06-08 | 2020-06-08 | Undisturbed sampling drilling tool adopting semi-closed pipe structure |
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| CN212406714U true CN212406714U (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594162A (en) * | 2020-06-08 | 2020-08-28 | 江苏省无锡探矿机械总厂有限公司 | Undisturbed sampling drilling tool adopting semi-closed pipe structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594162A (en) * | 2020-06-08 | 2020-08-28 | 江苏省无锡探矿机械总厂有限公司 | Undisturbed sampling drilling tool adopting semi-closed pipe structure |
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