CN111551399B - Pile hole bottom mud sampling device - Google Patents
Pile hole bottom mud sampling device Download PDFInfo
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- CN111551399B CN111551399B CN202010412482.7A CN202010412482A CN111551399B CN 111551399 B CN111551399 B CN 111551399B CN 202010412482 A CN202010412482 A CN 202010412482A CN 111551399 B CN111551399 B CN 111551399B
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- sealing cover
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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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
Abstract
A pile hole bottom slurry sampling device comprises a main cylinder body, wherein a slurry inlet is formed in the bottom of the main cylinder body, a first sealing cover plate and a second sealing cover plate are arranged inside the main cylinder body, a horizontal rotating shaft penetrates through the middle parts of the first sealing cover plate and the second sealing cover plate, the first sealing cover plate and the second sealing cover plate are horizontally arranged, and the bottom surfaces of the first sealing cover plate and the second sealing cover plate are in close contact with the top surface of the slurry inlet; a lifting plate is arranged in the main cylinder body and close to the top, a first lower pressing plate and a second lower pressing plate are arranged at two ends of the bottom surface of the lifting plate, and the first lower pressing plate and the second lower pressing plate are respectively arranged right above one ends of the first sealing cover plate and the second sealing cover plate, which are far away from the pulp inlet; the top of the lifting plate is provided with a main traction rope which passes through a through hole on the top surface of the main cylinder body and extends out of the main cylinder body. Adopt above-mentioned structure, can effectively solve the problem among the prior art, guarantee to take a sample originally from stake hole bottom to guarantee the accuracy of testing result.
Description
Technical Field
The invention relates to the field of sampling devices, in particular to a pile hole bottom mud sampling device.
Background
At present, for a cast-in-situ bored pile or an underground diaphragm wall adopting a slurry protection ratio, slurry at the bottom of a pile hole or a slotted hole needs to be collected to test indexes such as specific gravity, viscosity, sand content and the like, but for deeper pile holes, such as slurry with the depth of dozens of meters, slurry at the bottom of the slotted hole needs to be collected but cannot be mixed with slurry at the position above the bottom of the slotted hole, and the test of the slurry index is always a difficult problem.
In the prior art, some slurry taking cylinders can enter the bottoms of the slotted holes or the pile holes for collection, but various problems exist, but the most serious problem is that slurry at other parts is mixed into the slurry in the slurry taking cylinders during the lifting process in the pile holes or the slotted holes, so that the accuracy of measurement is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pile hole bottom slurry sampling device, which can effectively solve the problems in the prior art and ensure that the sampled slurry originally comes from the pile hole bottom, thereby ensuring the accuracy of a detection result.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a pile hole bottom mud sampling device comprises a main cylinder body, wherein a mud inlet is formed in the bottom of the main cylinder body, a first sealing cover plate and a second sealing cover plate are arranged inside the main cylinder body, a horizontal rotating shaft penetrates through the middle parts of the first sealing cover plate and the second sealing cover plate, the first sealing cover plate and the second sealing cover plate are horizontally arranged, and the bottom surfaces of the first sealing cover plate and the second sealing cover plate are in close contact with the top surface of the mud inlet;
a lifting plate is arranged in the main cylinder body and close to the top, a first lower pressing plate and a second lower pressing plate are arranged at two ends of the bottom surface of the lifting plate, and the first lower pressing plate and the second lower pressing plate are respectively arranged right above one ends of the first sealing cover plate and the second sealing cover plate, which are far away from the pulp inlet;
the top of the lifting plate is provided with a main traction rope which passes through a through hole on the top surface of the main cylinder body and extends out of the main cylinder body.
In the preferred scheme, the slurry inlet comprises a circular truncated cone section positioned at the bottom of the main barrel and a cylindrical section arranged at the top of the circular truncated cone section, and the diameter of the horizontal section of the circular truncated cone section is gradually reduced from bottom to top.
In a preferred scheme, a blocking net is arranged in the circular platform section.
In a preferred scheme, a plurality of supporting plates are arranged at the bottom of the main cylinder body.
In a preferable scheme, a first extension strip plate is arranged on the end face, close to the pulp inlet, of one end of the first sealing cover plate, the thickness of the first extension strip plate is half of that of the first sealing cover plate, and the first extension strip plate is arranged on the lower half section of the end face of the first sealing cover plate;
the sealed apron of second be equipped with the second on the terminal surface of advancing the thick liquid mouth and extend the slat, the second extends the slat thickness and is the half of the sealed apron of second, the second extends the slat setting on the first extension slat of first sealed apron terminal surface.
In a preferred scheme, the length of the second lower pressing plate above the second sealing cover plate is greater than that of the first lower pressing plate above the first sealing cover plate.
In a preferable scheme, a torsion spring is arranged between the part of the rotating shaft penetrating through the first sealing cover plate and the first sealing cover plate;
and a torsion spring is arranged between the part of the rotating shaft penetrating through the second sealing cover plate and the second sealing cover plate.
In the preferred scheme, the bottom surface of the main cylinder body on one side of the bottom surface of the slurry inlet is provided with a sampling tube communicated with the interior of the main cylinder body, and the sampling tube is provided with a sampling valve.
In the preferred scheme, the top surface of the main cylinder body is symmetrically provided with two hanging rings, two hanging rings are respectively provided with an auxiliary traction rope, one end of each auxiliary traction rope, far away from the hanging rings, is connected to the outer side wall of the same lantern ring, and the lantern ring is sleeved on the main traction rope.
In the preferred scheme, a positioning block is fixedly arranged on the main traction rope and is arranged on the main traction rope below the lantern ring.
The pile hole bottom slurry sampling device provided by the invention has the following beneficial effects by adopting the structure:
(1) The sealing performance of the device can be ensured in the lowering process of the device, and mud in the middle of the upper part of a pile hole is prevented from entering, so that the accuracy of a sampled product is ensured, and the error of a detection result is avoided;
(2) The entering of large and small crushed stones can be avoided in the sampling process, and the burden on lifting equipment caused by the entering of the crushed stones is reduced;
(3) The stability that can effectual assurance promotion in-process device is set up to haulage rope tie point symmetry, avoids the device slope unstability.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic view of the structure of the present invention during lowering and lifting.
FIG. 2 is a schematic diagram of the structure of the present invention during the sampling process.
Fig. 3 is a schematic perspective view of the present invention.
Fig. 4 is a schematic structural diagram of the sealing mechanism of the present invention.
In the figure: the device comprises a main barrel body 1, a through hole 101, a slurry inlet 2, a circular truncated cone section 201, a cylindrical section 202, a first sealing cover plate 3, a first extension strip plate 301, a second sealing cover plate 4, a second extension strip plate 401, a rotating shaft 5, a lifting plate 6, a first lower pressing plate 7, a second lower pressing plate 8, a main traction rope 9, a lifting ring 10, an auxiliary traction rope 11, a lantern ring 12, a positioning block 13, a blocking net 14, a supporting plate 15, a sampling tube 16, a sampling valve 161 and a torsion spring 17.
Detailed Description
As shown in fig. 1-4, a pile hole bottom slurry sampling device comprises a main cylinder 1, wherein a slurry inlet 2 is arranged at the bottom of the main cylinder 1, a first sealing cover plate 3 and a second sealing cover plate 4 are arranged inside the main cylinder 1, a horizontal rotating shaft 5 penetrates through the middle parts of the first sealing cover plate 3 and the second sealing cover plate 4, the first sealing cover plate 3 and the second sealing cover plate 4 are horizontally arranged, and the bottom surfaces of the first sealing cover plate 3 and the second sealing cover plate 4 are tightly contacted with the top surface of the slurry inlet 2;
a lifting plate 6 is arranged in the main cylinder body 1 and close to the top, a first lower pressing plate 7 and a second lower pressing plate 8 are arranged at two ends of the bottom surface of the lifting plate 6, and the first lower pressing plate 7 and the second lower pressing plate 8 are respectively arranged right above one ends of the first sealing cover plate 3 and the second sealing cover plate 4, which are far away from the pulp inlet 2;
the top of the lifting plate 6 is provided with a main traction rope 9, and the main traction rope 9 passes through a through hole 101 on the top surface of the main cylinder body 1 and extends out of the main cylinder body 1.
In a preferred scheme, the slurry inlet 2 comprises a circular truncated cone section 201 located at the bottom of the main cylinder body 1 and a cylindrical section 202 arranged at the top of the circular truncated cone section 201, and the diameter of the horizontal section of the circular truncated cone section 201 is gradually reduced from bottom to top.
In a preferred scheme, a blocking net 14 is arranged in the circular truncated cone section 201.
In a preferred scheme, a plurality of supporting plates 15 are arranged at the bottom of the main cylinder body 1.
In a preferable scheme, a first extension lath 301 is arranged on the end face of one end of the first sealing cover plate 3 close to the slurry inlet 2, the thickness of the first extension lath 301 is half of that of the first sealing cover plate 3, and the first extension lath 301 is arranged on the lower half section of the end face of the first sealing cover plate 3;
the end face of one end, close to the slurry inlet 2, of the second sealing cover plate 4 is provided with a second extension lath 401, the thickness of the second extension lath 401 is half of that of the second sealing cover plate 4, and the second extension lath 401 is arranged on the first extension lath 301 on the end face of the first sealing cover plate 3.
In a preferred scheme, the length of the second lower pressing plate 8 above the second sealing cover plate 4 is greater than that of the first lower pressing plate 7 above the first sealing cover plate 3.
In a preferable scheme, a torsion spring 17 is arranged between the part of the rotating shaft 5 penetrating through the first sealing cover plate 3 and the first sealing cover plate 3;
and a torsion spring 17 is arranged between the part of the rotating shaft 5 passing through the second sealing cover plate 4 and the second sealing cover plate 4.
In a preferable scheme, a sampling pipe 16 communicated with the inside of the main cylinder body 1 is arranged on the bottom surface of the main cylinder body 1 on one side of the bottom surface of the pulp inlet 2, and a sampling valve 161 is arranged on the sampling pipe 16.
In the preferred scheme, the top surface of the main cylinder body 1 is symmetrically provided with two hanging rings 10, the two hanging rings 10 are respectively provided with an auxiliary hauling rope 11, one end of each auxiliary hauling rope 11, which is far away from the corresponding hanging ring 10, is connected to the outer side wall of the same lantern ring 12, and the lantern ring 12 is sleeved on the main hauling rope 9.
In a preferable scheme, a positioning block 13 is fixedly arranged on the main traction rope 9, and the positioning block 13 is arranged on the main traction rope 9 below the lantern ring 12.
The principle of the device is as follows:
as shown in fig. 1, in the lifting and lowering processes of the device, the main hauling rope 9 is in a stretched state under the action of the dead weight of the positioning block 13, the lantern ring 12 and the lifting plate 6, and the auxiliary hauling rope 11 is in a stretched state at the same time, so that the stability of the device can be effectively ensured. In addition, due to the existence of the torsion spring 17, the first sealing cover plate 3 and the second sealing cover plate 4 are in a horizontal state and block the slurry inlet 2, so that slurry in the middle of the pile hole is prevented from entering.
After reaching the bottom of a pile hole, a main traction rope 9 is continuously lowered for a certain distance, at the moment, under the action of the dead weight of a lifting plate 6, an auxiliary traction rope 11 is loosened, the lifting plate 6 moves downwards and enables a first lower pressing plate 7 and a second lower pressing plate 8 to press a first sealing cover plate 3 and a second sealing cover plate 4, in order to ensure the sealing property, a first extension batten 301 of a lower half part is arranged on the end surface of the first sealing cover plate 3, a second extension batten 401 of an upper half part is arranged on the end surface of the second sealing cover plate, in order to solve the problem that the first lower pressing plate 7 and the second lower pressing plate 8 are mutually interfered to cause clamping, the length of the second lower pressing plate 8 is properly larger than that of the first lower pressing plate 7, the second lower pressing plate 8 firstly contacts the second sealing cover plate 4 and tilts the second sealing cover plate 4 by a certain angle through the lever principle, the first lower pressing plate 7 contacts the first sealing cover plate 3 and enables the first sealing cover plate 3 to tilt, at the top surface of a grout inlet 2 is opened, mud enters the main cylinder body 1, larger stones due to exist in the supporting plate 15 and cannot enter the bottom area of the main cylinder body 1, and small stones are kept outside the main cylinder body 14.
After the sampling is finished, the traction rope is lifted, the device returns to the state shown in the figure 1 from the state shown in the figure 2, and then the whole sampling device is lifted by the lifting device.
By adopting the structure, the sealing performance of the device can be ensured in the lowering process of the device, and mud in the middle of the upper part of the pile hole is prevented from entering, so that the accuracy of a sampled product is ensured, and the error of a detection result is avoided; the entering of large and small crushed stones can be avoided in the sampling process, and the burden on lifting equipment caused by the entering of the crushed stones is reduced; the stability that can effectual assurance promotion in-process device is set up to haulage rope tie point symmetry, avoids the device slope unstability.
Claims (8)
1. The utility model provides a stake hole bottom mud sampling device, includes main barrel (1), characterized by: the bottom of the main cylinder body (1) is provided with a slurry inlet (2), a first sealing cover plate (3) and a second sealing cover plate (4) are arranged in the main cylinder body (1), a horizontal rotating shaft (5) penetrates through the middle parts of the first sealing cover plate (3) and the second sealing cover plate (4), the first sealing cover plate (3) and the second sealing cover plate (4) are horizontally arranged, and the bottom surfaces of the first sealing cover plate (3) and the second sealing cover plate (4) are in close contact with the top surface of the slurry inlet (2);
a lifting plate (6) is arranged in the main cylinder body (1) and close to the top, a first lower pressing plate (7) and a second lower pressing plate (8) are arranged at two ends of the bottom surface of the lifting plate (6), and the first lower pressing plate (7) and the second lower pressing plate (8) are respectively arranged right above one ends of the first sealing cover plate (3) and the second sealing cover plate (4) far away from the pulp inlet (2);
the top of the lifting plate (6) is provided with a main traction rope (9), and the main traction rope (9) penetrates through a through hole (101) in the top surface of the main cylinder body (1) and extends out of the main cylinder body (1);
the slurry inlet (2) comprises a circular truncated cone section (201) positioned at the bottom of the main cylinder body (1) and a cylindrical section (202) arranged at the top of the circular truncated cone section (201), and the diameter of the horizontal section of the circular truncated cone section (201) is gradually reduced from bottom to top;
the bottom of the main cylinder body (1) is provided with a plurality of supporting plates (15).
2. The pile hole bottom mud sampling device of claim 1, wherein: the circular truncated cone section (201) is internally provided with a blocking net (14).
3. The pile hole bottom mud sampling device of claim 1, wherein: a first extension lath (301) is arranged on the end face of one end, close to the pulp inlet (2), of the first sealing cover plate (3), the thickness of the first extension lath (301) is half of that of the first sealing cover plate (3), and the first extension lath (301) is arranged on the lower half section of the end face of the first sealing cover plate (3);
the sealed apron of second (4) be close to into the one end terminal surface of thick liquid mouth (2) on be equipped with the second and extend lath (401), the second extends lath (401) thickness and is the half of sealed apron of second (4), the second extends lath (401) and sets up on first extension lath (301) of first sealed apron (3) terminal surface.
4. The pile hole bottom mud sampling device of claim 3, wherein: the length of a second lower pressing plate (8) above the second sealing cover plate (4) is greater than that of a first lower pressing plate (7) above the first sealing cover plate (3).
5. The pile hole bottom mud sampling device of claim 1, wherein: a torsion spring (17) is arranged between the part of the rotating shaft (5) penetrating through the first sealing cover plate (3) and the first sealing cover plate (3);
and a torsion spring (17) is arranged between the part of the rotating shaft (5) penetrating through the second sealing cover plate (4) and the second sealing cover plate (4).
6. The pile hole bottom mud sampling device of claim 1, wherein: the bottom surface of the main cylinder body (1) on one side of the bottom surface of the pulp inlet (2) is provided with a sampling tube (16) communicated with the interior of the main cylinder body (1), and the sampling tube (16) is provided with a sampling valve (161).
7. The pile hole bottom mud sampling device of claim 1, wherein: the top surface of the main barrel body (1) is symmetrically provided with two hanging rings (10), the two hanging rings (10) are respectively provided with an auxiliary hauling rope (11), one end, far away from the hanging rings (10), of each auxiliary hauling rope (11) is connected to the outer side wall of the same lantern ring (12), and the lantern ring (12) is sleeved on the main hauling rope (9).
8. The pile hole bottom mud sampling device of claim 7, wherein: the main traction rope (9) is fixedly provided with a positioning block (13), and the positioning block (13) is arranged on the main traction rope (9) below the lantern ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412482.7A CN111551399B (en) | 2020-05-15 | 2020-05-15 | Pile hole bottom mud sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412482.7A CN111551399B (en) | 2020-05-15 | 2020-05-15 | Pile hole bottom mud sampling device |
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| CN111551399A CN111551399A (en) | 2020-08-18 |
| CN111551399B true CN111551399B (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010412482.7A Active CN111551399B (en) | 2020-05-15 | 2020-05-15 | Pile hole bottom mud sampling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112113796B (en) * | 2020-10-10 | 2021-06-01 | 南京幸庄科技创新产业园管理有限公司 | Collection system of riverbed silt multistage sampling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199194A (en) * | 1991-09-30 | 1993-04-06 | C-Core-Centre For Cold Ocean Resources Eng. | Sea bottom sampler |
| CN205246388U (en) * | 2015-12-23 | 2016-05-18 | 北京东方新星石化工程股份有限公司 | Mud sampling equipment |
| CN207268681U (en) * | 2017-09-29 | 2018-04-24 | 广州市诚铁监理咨询有限公司 | Pouring pile hole bottom slurry sampler |
| CN107816351A (en) * | 2017-11-30 | 2018-03-20 | 成都科盛石油科技有限公司 | Multi-functional drilling mud sampler |
| CN208363071U (en) * | 2018-07-02 | 2019-01-11 | 中铁三局集团有限公司 | A kind of energy precise positioning self-closed type royal jelly collector |
| CN210108764U (en) * | 2019-04-13 | 2020-02-21 | 中交二公局第一工程有限公司 | Pile hole bottom mud sampling device |
| CN212110728U (en) * | 2020-05-15 | 2020-12-08 | 中国葛洲坝集团第一工程有限公司 | Pile hole bottom mud sampling device |
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