CN110631860B - Sampling device for building site soil detection - Google Patents
Sampling device for building site soil detection Download PDFInfo
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- CN110631860B CN110631860B CN201911025544.2A CN201911025544A CN110631860B CN 110631860 B CN110631860 B CN 110631860B CN 201911025544 A CN201911025544 A CN 201911025544A CN 110631860 B CN110631860 B CN 110631860B
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- G—PHYSICS
- 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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- G—PHYSICS
- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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Abstract
The invention discloses a sampling device for detecting soil in a construction site, which relates to the field of constructional engineering and adopts the technical scheme that: the device comprises a cylindrical cylinder, wherein one axial end of the cylinder is arranged in a conical shape to form a conical part, the outer side wall of the cylinder is provided with a spiral convex edge along the axial direction, and the outer side wall of the cylinder is also provided with a handle; one end of the cylinder body, which is far away from the pyramid part, is provided with a mounting groove, the pyramid part is provided with an air vent along the axial direction, an embedding rod is arranged in the mounting groove, one end of the embedding rod, which is close to the pyramid part, is correspondingly provided with a plugging strip for embedding the air vent, and one end of the cylinder body, which is far away from the pyramid part, is also in threaded connection with a pressing cover; the embedded rod is provided with an air suction hole along the axial direction, one end of the air suction hole, which is far away from the pyramid part, is communicated with an air suction pipe, and the air suction pipe is communicated with an air exhaust device. The embedded rod can form a barrier by adopting the upward moving part of the embedded rod after the column body is driven in, so that the condition of mixing air in soil and earth surface air is reduced, the earth surface air interference is reduced, and the accuracy of a sample is improved.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a sampling device for detecting soil of a construction site.
Background
The civil building engineering indoor environmental pollution control code GB50325-2001 stipulates: before the civil building engineering of new construction and extension is designed, the radon concentration in the soil of a building site must be measured, and a corresponding detection report is provided.
The prior art method for measuring the radon concentration in soil generally takes a sample and then measures. During sampling, the depth of the sampling hole penetrating into the earth surface soil is 600-800mm, the sampling aperture is 20-40mm, 10m grids are used for measurement and sampling, each grid point is a test point (can deviate from +/-2 m when meeting large stones), the number of the distributed points cannot be less than 16, and the distributed point position covers the range of basic engineering.
The key of radon concentration detection in the soil is how to gather the air in the soil, and current sampling device is the sampler that the tip has the gas pocket usually, beats the back at the sampling hole, inserts the sampler in the hole of beating, then should be airtight through compressing tightly the lid with the sampler near earth's surface department, avoids among the big gas infiltration hole, then bleeds and carries out gas sampling.
During actual operation, need earlier through trompil equipment trompil, then the sample is taken a sample to the reuse sampler, when gathering the gas in the soil, because the air that is close to earth's surface department behind the trompil mixes the exchange with soil air easily, and the tip of sampler when putting into downthehole, also can carry the outside air and get into to the sample air that leads to the sampler extraction easily receives earth's surface air interference, influences the sample accuracy, and is more troublesome, remains to improve.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a sampling device for detecting the soil of the construction site, which has the advantages of reducing the interference of the air on the earth surface during sampling and improving the accuracy of the sample.
In order to achieve the purpose, the invention provides the following technical scheme:
a sampling device for detecting soil in a building site comprises a cylindrical cylinder body, wherein one axial end of the cylinder body is arranged in a conical shape to form a cone, a spiral rib is arranged on the outer side wall of the cylinder body along the axial direction, a handle is further arranged on the outer side wall of the cylinder body, and the handle is arranged close to one end, far away from the cone, of the cylinder body; the cylinder body is provided with a mounting groove at one end far away from the cone part, the cone part is provided with an air vent along the axial direction, an embedded rod is arranged in the mounting groove, and the outer side wall of the embedded rod is abutted against the inner side wall of the mounting groove; the end, close to the cone, of the embedded rod is correspondingly provided with a blocking strip embedded into the vent hole, the end face, far away from the embedded rod, of the blocking strip is flush with the end face of the cone, the end, far away from the cone, of the column body is further connected with a pressing cover in a threaded mode, and the pressing cover is used for pressing the embedded rod in the installation groove and enabling the blocking strip of the embedded rod to be embedded into the vent hole for blocking; the embedded rod is provided with an air suction hole along the axial direction, the air suction hole and the blocking strip are arranged in a staggered mode, one end, far away from the pyramid part, of the air suction hole is communicated with an air suction pipe, and the air suction pipe is communicated with an air suction device.
Through above-mentioned technical scheme, when adopting above-mentioned sampling device, squeeze into ground through rotating the cylinder through the handle earlier, then will compress tightly the lid and unscrew for inlay the pole rebound part, stifled strip breaks away from with the air vent this moment, then bleeds through air exhaust device, makes can suck the gas in the soil, collect through the collecting pipe can. Most commonly, a syringe is also used, which is connected to an air suction pipe for suction collection. Adopt the cylinder to squeeze into back and will inlay the pole and move up the part, inlay the pole and can form and block to reduced the condition that air and earth's surface air mix in the soil, thereby reduced earth's surface air interference, promoted the sample accuracy.
Furthermore, the air vent is provided with a plurality ofly, and a plurality of air vents are the even setting of axial along the axis of cylinder.
Through above-mentioned technical scheme, set up a plurality of air vents for it is more convenient that soil air inhales in the cylinder.
Further, the tank bottom of mounting groove is the taper groove setting, the one end that the inserted bar is close to the pyramis diminishes gradually and is the round platform setting towards the direction that is close to the pyramis, be formed with the holding tank between mounting groove and the inserted bar.
Through above-mentioned technical scheme, set up the holding tank, air exhaust device can be in inhaling the in-process gravel in with soil and inhaling the cylinder through the air vent, and the holding tank can supply these gravel to deposit temporarily this moment, can will inlay the pole and remove the back and clear up in the lump after whole sampling operation finishes to make the sample operation more convenient.
Further, the vent hole is the flaring setting towards the direction that is close to the compressing cover, the shape setting that the stifled strip corresponds the vent hole.
Through the technical scheme, the flaring of the vent hole can lead the blocking strip to form when the vent hole is inserted, so that the blocking strip is inserted into the vent hole to be embedded more conveniently.
Further, the inside wall of mounting groove has the gib block along the axial fixity, inlay and correspond on the pole and offer the confession the gib block embedding guide way that slides.
Through above-mentioned technical scheme, set up gib block and guide way, inlay the pole and be located and can lead through gib block and guide way when sliding in the mounting groove to make the cooperation of air vent and stifled strip more stable.
Furthermore, the pressing cover is rotatably connected to the embedded rod, and the rotating axis of the pressing cover and the embedded rod is superposed with the axis of the cylinder.
Through above-mentioned technical scheme, compress tightly the lid and rotate to be connected on inlaying the pole, when compressing tightly the lid and unscrew, can directly drive and inlay the pole and slide and make the closure strip break away from with the air vent to do not need operating personnel to continuously carry and inlay the pole when the sample of bleeding, make in-service use more convenient.
Furthermore, the embedded rod comprises a first rod part close to the cone part and a second rod part fixedly connected to one end, far away from the cone part, of the first rod part, the diameter of the second rod part is smaller than that of the first rod part, the guide groove is arranged on the first rod part, and the pressing cover is rotatably connected to the second rod part; still threaded connection has the shutoff ring in the mounting groove, the shutoff ring is located the one side that the pyramis was kept away from to first pole portion, and the distance between shutoff ring and the first pole portion is greater than the length of stifled strip and is less than the length setting that compresses tightly the lid screw thread section.
Through above-mentioned technical scheme, set up the shutoff ring, when inlaying the pole sideslip to stifled strip and air vent and breaking away from, first pole portion can contradict and form sealedly in the lower terminal surface of shutoff ring to strengthened the sealed effect of mounting groove, reduced the condition that the air got into from mounting groove one side, make the gas of collecting more accurate.
Furthermore, one end of the plugging ring close to the first rod part comprises a rubber backing ring.
Through above-mentioned technical scheme, set up the rubber backing ring, the sealed effect of shutoff ring can further be strengthened to the elastic deformation of rubber backing ring.
Furthermore, the section of the spiral rib is gradually reduced towards the direction far away from the axis of the cylindrical body.
Through above-mentioned technical scheme, the convergent setting of spiral bead for the cylinder rotates and inserts the operation on ground more convenient.
Compared with the prior art, the invention has the beneficial effects that:
(1) the embedded rod can form a barrier by adopting the part of the embedded rod which moves upwards after the column body is driven in, so that the condition that air in soil is mixed with surface air is reduced, the surface air interference is reduced, and the accuracy of a sample is improved;
(2) by arranging the holding tank, the air exhaust device can possibly suck gravel in soil into the column body through the vent hole in the air suction process, the holding tank can be used for temporarily storing the gravel, and the embedded rod can be removed and then cleaned together after the whole sampling operation is finished, so that the sampling operation is more convenient;
(3) the pressing cover is rotatably connected to the embedded rod, when the pressing cover is unscrewed, the embedded rod can be directly driven to slide, so that the blocking strip is separated from the vent hole, an operator does not need to continuously lift the embedded rod during air suction sampling, and the practical use is more convenient;
(4) through setting up the shutoff ring, strengthened the sealed effect of mounting groove, reduced the condition that the air got into from mounting groove one side for the gas of collecting is more accurate.
Drawings
FIG. 1 is an overall schematic view of an embodiment;
FIG. 2 is a schematic cross-sectional view of an embodiment;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 2;
FIG. 5 is a partial cross-sectional schematic view of an embodiment.
Reference numerals: 1. a cylinder; 2. a pyramid part; 3. a spiral rib; 4. a handle; 5. mounting grooves; 6. a vent hole; 7. embedding a rod; 71. a first rod portion; 72. a second rod portion; 8. blocking strips; 9. a compression cover; 10. a suction hole; 11. an air intake duct; 12. accommodating grooves; 13. a guide strip; 14. a guide groove; 15. a positioning ring; 16. a limiting ring; 17. a plugging ring; 18. a rubber grommet; 19. and (7) screwing the parts.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example (b):
a sampling device for soil detection in a construction site, as shown in figure 1, comprises a cylindrical column body 1, wherein the diameter of the column body 1 is 40-50 mm. The axial one end of cylinder 1 is the toper setting and forms pyramis 2, and the lateral wall of cylinder 1 is provided with spiral bead 3 along the axial, and the cross-section of spiral bead 3 diminishes the setting towards the direction of keeping away from cylinder 1 axis gradually. The outer side wall of the cylinder 1 is also provided with a handle 4, and the handle 4 is arranged close to one end of the cylinder 1 far away from the cone part 2. When the column body 1 needs to be driven into the ground, the pyramid part 2 is pressed into the ground, and then the handle 4 drives the column body 1 to rotate along the rotating direction of the spiral protruding rib 3 and press downwards, so that the column body 1 can be drilled into the ground.
As shown in fig. 2 and 3, an installation groove 5 is formed in one end of the column body 1, which is far away from the pyramid part 2, vent holes 6 are formed in the pyramid part 2 along the axial direction, a plurality of vent holes 6 are formed, and the vent holes 6 are uniformly formed along the axial direction of the column body 1. An embedded rod 7 is arranged in the mounting groove 5. The one end that inlays pole 7 and is close to pyramis 2 corresponds and is provided with stifled strip 8 that corresponds air vent 6 quantity, and the terminal surface that the stifled strip 8 kept away from and inlays pole 7 sets up with the terminal surface parallel and level of pyramis 2, and stifled strip 8 corresponds embedding air vent 6 and carries out the shutoff to air vent 6. The end, far away from the cone part 2, of the column body 1 is further connected with a pressing cover 9 in a threaded mode, and the pressing cover 9 is used for pressing the embedded rod 7 in the installation groove 5 and enabling the plugging strip 8 of the embedded rod 7 to be embedded into the vent hole 6.
The embedded rod 7 is provided with an air suction hole 10 along the axial direction, the air suction hole 10 and the plugging strip 8 are arranged in a staggered mode, one end, far away from the cone part 2, of the air suction hole 10 is communicated with an air suction pipe 11, and the air suction pipe 11 is communicated with an air suction device. Air exhaust device can be all kinds of aspiration pumps, and it breaks away from in 8 follow air vent 6 to move through inlaying pole 7 after the cylinder 1 bores into, then in entering into mounting groove 5 through air vent 6 with the air in the soil, suction device can suction this moment and take out the soil air to the collecting pipe that corresponds and collect. The air exhaust can also be directly a needle cylinder, and the needle cylinder is connected to the air suction pipe 11 for air exhaust and collection.
As shown in fig. 2 and 3, the vent hole 6 is flared toward the pressing cover 9, and the blocking strip 8 is provided corresponding to the shape of the vent hole 6. The flaring of the vent hole 6 can lead the blocking strip 8 to form a guide when the blocking strip 8 is inserted into the vent hole 6, so that the operation of inserting the blocking strip 8 into the vent hole 6 for embedding is more convenient. The tank bottom of mounting groove 5 is the bell groove setting, and the one end that the inserted bar 7 is close to pyramis 2 diminishes gradually and is the round platform setting towards the direction that is close to pyramis 2, when compressing tightly lid 9 and compressing tightly inserted bar 7 and mounting groove 5 in, is formed with holding tank 12 between mounting groove 5 and the inserted bar 7, and holding tank 12 can supply the gravel to deposit, and earth gets into the influence to whole user's side when having reduced the sample of breathing in.
The embedded rod 7 comprises a first rod part 71 close to the cone part 2 and a second rod part 72 coaxially and fixedly connected to one end of the first rod part 71 far away from the cone part 2, and the diameter of the second rod part 72 is smaller than that of the first rod part 71. The outer side wall of the first rod part 71 is abutted against the inner side wall of the mounting groove 5.
As shown in fig. 2 and 4, the pressing cap 9 is rotatably connected to the second rod portion 72 of the embedded rod 7, and the rotation axes of the pressing cap 9 and the embedded rod 7 are overlapped with the axis of the column body 1. The outer side wall of the second rod portion 72 is provided with a positioning ring 15, the second rod portion 72 is further in threaded connection with a limiting ring 16, the limiting ring 16 is located on one side, away from the first rod portion 71, of the positioning ring 15, and the pressing cover 9 is located between the positioning ring 15 and the limiting ring 16 for axial positioning.
The installation groove 5 is internally provided with a plugging ring 17 in a threaded connection mode, the plugging ring 17 is positioned on one side, away from the cone part 2, of the first rod part 71, and the distance between the plugging ring 17 and the first rod part 71 is larger than the length of the plugging strip 8 and smaller than the length of the threaded section of the compression cover 9. One end of the plugging ring 17 close to the first rod part 71 comprises a rubber backing ring 18, and the rubber backing ring 18 is fixedly connected to the plugging ring 17. When the embedded rod 7 slides to the blocking strip 8 to be separated from the vent hole 6, the first rod part 71 can abut against the lower end face of the blocking ring 17 to form sealing, and the rubber gasket ring 18 can further enhance the sealing effect. One end of the plugging ring 17, which is far away from the second rod part 72, is provided with a screwing part 19, the screwing part 19 protrudes out of the installation groove 5, and the plugging ring 17 can be conveniently detached through the screwing part 19.
As shown in fig. 2 and 5, the guide bar 13 is axially fixed on the inner side wall of the mounting groove 5, and the first rod portion 71 of the embedded rod 7 is correspondingly provided with a guide groove 14 for the guide bar 13 to be embedded and slid. The embedded rod 7 can be guided by the guide strip 13 and the guide groove 14 when sliding in the mounting groove 5, so that the matching of the vent hole 6 and the blocking strip 8 is more stable.
The working principle of the embodiment is as follows:
when adopting above-mentioned sampling device, will compress tightly lid 9 earlier and screw up, make stifled strip 8 correspond embedding air vent 6, then bore into ground with cylinder 1, it is 600mm-800mm to bore the degree of depth usually, then make to compress tightly lid 9 through rotating and compress tightly and drive embedded rod 7 and shift up, make first pole portion 71 shift up and support tightly on shutoff ring 17, then carry out the sample of bleeding through starting external air exhaust device, embedded rod 7 and shutoff ring 17 can form sealedly this moment, thereby reduced the earth's surface air and got into and cause the interference to holistic sample, promote the accuracy of sample.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
1. The utility model provides a sampling device for building site soil detection which characterized in that: the novel multifunctional cylinder comprises a cylindrical cylinder body (1), wherein one axial end of the cylinder body (1) is arranged in a conical shape to form a conical part (2), the outer side wall of the cylinder body (1) is provided with a spiral rib (3) along the axial direction, the outer side wall of the cylinder body (1) is also provided with a handle (4), and the handle (4) is arranged close to one end, far away from the conical part (2), of the cylinder body (1);
an installation groove (5) is formed in one end, far away from the cone portion (2), of the cylinder body (1), an air vent (6) is formed in the cone portion (2) along the axial direction, an embedded rod (7) is arranged in the installation groove (5), and the outer side wall of the embedded rod (7) is abutted to the inner side wall of the installation groove (5); one end, close to the cone part (2), of the embedded rod (7) is correspondingly provided with a blocking strip (8) embedded into the vent hole (6), the end face, far away from the embedded rod (7), of the blocking strip (8) is flush with the end face of the cone part (2), one end, far away from the cone part (2), of the column body (1) is further connected with a pressing cover (9) in a threaded mode, and the pressing cover (9) is used for pressing the embedded rod (7) into the mounting groove (5) and enabling the blocking strip (8) of the embedded rod (7) to be embedded into the vent hole (6) for blocking;
the embedded rod (7) is provided with an air suction hole (10) along the axial direction, the air suction hole (10) and the blocking strip (8) are arranged in a staggered mode, one end, far away from the conical part (2), of the air suction hole (10) is communicated with an air suction pipe (11), and the air suction pipe (11) is communicated with an air suction device; the bottom of the mounting groove (5) is a conical groove, one end of the embedded rod (7) close to the conical part (2) is gradually reduced towards the direction close to the conical part (2) and is arranged in a circular truncated cone shape, and a receiving groove (12) is formed between the mounting groove (5) and the embedded rod (7);
the pressing cover (9) is rotatably connected to the embedded rod (7), and the rotating axes of the pressing cover (9) and the embedded rod (7) are overlapped with the axis of the column body (1);
the embedded rod (7) comprises a first rod part (71) close to the cone part (2) and a second rod part (72) fixedly connected to one end, far away from the cone part (2), of the first rod part (71), the diameter of the second rod part (72) is smaller than that of the first rod part (71), and the pressing cover (9) is rotatably connected to the second rod part (72);
a plugging ring (17) is further connected in the mounting groove (5) in a threaded manner, the plugging ring (17) is positioned on one side, away from the cone part (2), of the first rod part (71), and the distance between the plugging ring (17) and the first rod part (71) is larger than the length of the plugging strip (8) and smaller than the length of the thread section of the pressing cover (9); one end of the plugging ring (17) close to the first rod part (71) comprises a rubber backing ring (18),
when the embedded rod (7) slides to the blocking strip (8) to be separated from the vent hole (6), the first rod part (71) pushes against the lower end face of the blocking ring (17) to form sealing.
2. The sampling device for the building site soil detection according to claim 1, wherein: the air vents (6) are arranged in a plurality, and the air vents (6) are uniformly arranged along the axial line of the column body (1) in the axial direction.
3. The sampling device for the building site soil detection according to claim 1, wherein: the vent hole (6) is the flaring setting towards the direction that is close to compressing tightly lid (9), stifled strip (8) correspond the shape setting of vent hole (6).
4. The sampling device for the building site soil detection according to claim 3, wherein: the inside wall of mounting groove (5) is fixed with guide strip (13) along the axial, inlay and correspond on pole (7) and seted up the confession guide strip (13) embedding guide way (14) that slide, guide way (14) are located first pole portion (71).
5. The sampling device for the building site soil detection according to claim 1, wherein: the section of the spiral convex rib (3) is arranged to be gradually reduced towards the direction far away from the axis of the column body (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911025544.2A CN110631860B (en) | 2019-10-25 | 2019-10-25 | Sampling device for building site soil detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911025544.2A CN110631860B (en) | 2019-10-25 | 2019-10-25 | Sampling device for building site soil detection |
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| CN110631860A CN110631860A (en) | 2019-12-31 |
| CN110631860B true CN110631860B (en) | 2022-02-22 |
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Citations (7)
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| JP2004226326A (en) * | 2003-01-24 | 2004-08-12 | Techno International Kk | Soil gas collecting method and collecting equipment |
| CN1611743A (en) * | 2003-10-29 | 2005-05-04 | 中国石油化工股份有限公司 | Underground gas collecting drilling tool |
| KR20120124534A (en) * | 2011-05-04 | 2012-11-14 | 한국지질자원연구원 | Soil radon gas measuring system for uranium exploration |
| CN206862714U (en) * | 2017-04-06 | 2018-01-09 | 张宇 | A kind of soil environment detection gas sampling device |
| CN109030062A (en) * | 2018-07-26 | 2018-12-18 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Soil repair system and soil remediation method |
| CN209387361U (en) * | 2018-11-05 | 2019-09-13 | 广东核力工程勘察院 | A kind of Soil Radon sampler |
| CN209470942U (en) * | 2019-01-15 | 2019-10-08 | 台州市环境监测中心站 | A kind of smoke collecting device |
-
2019
- 2019-10-25 CN CN201911025544.2A patent/CN110631860B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004226326A (en) * | 2003-01-24 | 2004-08-12 | Techno International Kk | Soil gas collecting method and collecting equipment |
| CN1611743A (en) * | 2003-10-29 | 2005-05-04 | 中国石油化工股份有限公司 | Underground gas collecting drilling tool |
| KR20120124534A (en) * | 2011-05-04 | 2012-11-14 | 한국지질자원연구원 | Soil radon gas measuring system for uranium exploration |
| CN206862714U (en) * | 2017-04-06 | 2018-01-09 | 张宇 | A kind of soil environment detection gas sampling device |
| CN109030062A (en) * | 2018-07-26 | 2018-12-18 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Soil repair system and soil remediation method |
| CN209387361U (en) * | 2018-11-05 | 2019-09-13 | 广东核力工程勘察院 | A kind of Soil Radon sampler |
| CN209470942U (en) * | 2019-01-15 | 2019-10-08 | 台州市环境监测中心站 | A kind of smoke collecting device |
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| CN110631860A (en) | 2019-12-31 |
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