CN209764471U - Hollow sampling drilling device - Google Patents
Hollow sampling drilling device Download PDFInfo
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- CN209764471U CN209764471U CN201920339976.XU CN201920339976U CN209764471U CN 209764471 U CN209764471 U CN 209764471U CN 201920339976 U CN201920339976 U CN 201920339976U CN 209764471 U CN209764471 U CN 209764471U
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Abstract
The utility model discloses a hollow sampling drilling device, which comprises a sampling shell, a sampling inner cylinder, a drill bit and a drill rod, wherein the sampling inner cylinder is fixed in the sampling shell, so that a sampling outer cavity is formed between the sampling inner cylinder and the sampling shell, and the interior of the sampling inner cylinder is a sampling inner cavity; the lower end of the sampling inner cylinder is fixedly provided with four supporting plates which are positioned on the same horizontal plane and are arranged in a cross shape; movable baffles are arranged at the upper parts of the four supporting plates, and one sides of the movable baffles are hinged with the inner wall of the sampling inner cylinder through hinges; the drill rod is a hollow rod with openings at two ends, a spiral sheet is arranged in the drill rod, and the lower end of the drill rod is connected with the upper end of the sampling inner cylinder through threads; and the lower part of the thread of the sampling inner cylinder is provided with an annular check ring, and the circumference of the annular check ring is fixedly connected with the inner wall of the sampling inner cylinder. The utility model discloses can accomplish the sample process of coal rock sample in the probing to not only reduce the destruction condition to the soil body, effectively shorten the sample time moreover.
Description
Technical Field
The utility model relates to a drilling rig specifically is a cavity drilling rig that can take a sample.
Background
drilling is an important technical means in geological exploration work. A cylindrical borehole is formed in the earth formation downhole from the surface with a drilling rig to identify and demarcate the earth formation. The rock core, the ore sample and the soil sample can be obtained from different depths through the finished drilling hole to carry out analysis and research, so that the physical and mechanical properties and indexes of the rock and the soil layer can be measured, and the experimental requirement is facilitated. Its advantages are direct underground sampling and observation, visual and accurate acquisition of accumulated cultural data, and short time for understanding underground condition. The method is suitable for specifically knowing the stacking distribution range and thickness of sites, the shapes and the layouts of large-scale building base sites, large-scale buries and ancient cities and the like.
However, the existing drilling and sampling processes are divided into two processes, which can cause great damage to the soil, and on the other hand, the drilling and sampling processes are performed separately, which results in a more complicated sampling process and a longer sampling time.
disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a cavity drilling rig that can take a sample can accomplish the sample process of coal rock sample in the probing to not only reduce the destruction condition to the soil body, effectively shorten the sample time moreover.
In order to realize the purpose, the utility model discloses a technical scheme is: a hollow sampling drilling device comprises a sampling shell, a sampling inner cylinder, a drill bit and a drill rod,
The sampling inner cylinder is fixed in the sampling shell, so that a sampling outer cavity is formed between the sampling inner cylinder and the sampling shell, the sampling inner cavity is arranged in the sampling inner cylinder, the drill bit is fixed at the lower end of the sampling shell, a soil inlet formed in the drill bit is communicated with the sampling outer cavity, and a soil discharge port is formed in the top of the sampling outer cavity;
The lower end of the sampling inner cylinder is fixedly provided with four supporting plates which are positioned on the same horizontal plane and are arranged in a cross shape; movable baffles are arranged at the upper parts of the four supporting plates, and one sides of the movable baffles are hinged with the inner wall of the sampling inner cylinder through hinges;
The drill rod is a hollow rod with openings at two ends, a spiral sheet is arranged in the drill rod, the outer diameter of the drill rod is slightly smaller than the inner diameter of the sampling inner cylinder, mounting threads are arranged on the inner wall close to the upper end of the sampling inner cylinder and the outer wall close to the lower end of the drill rod, and the lower end of the drill rod is connected with the upper end of the sampling inner cylinder through threads; and the lower part of the thread of the sampling inner cylinder is provided with an annular check ring, and the circumference of the annular check ring is fixedly connected with the inner wall of the sampling inner cylinder.
Furthermore, the movable baffle plate is composed of four 90-degree fan-shaped pieces, the arc edges of the four 90-degree fan-shaped pieces are respectively hinged on the inner wall of the sampling inner cylinder through hinges, and the four 90-degree fan-shaped pieces form a disc shape in a horizontal closed state.
further, the inner diameter of the annular retainer ring is smaller than the outer diameter of the drill rod.
Compared with the prior art, the utility model discloses a sample shell, the sample inner tube, drill bit and drilling rod combined mode, when probing the sample, pass through screw thread fixed connection with the sample inner tube earlier, then begin to drill to the stratum of required exploration, in the drill bit drilling process downwards, the soil or broken coal petrography that drill into gets into the sample outer chamber through advancing soil inlet, along with soil measure or broken coal petrography volume constantly increases, four 90 fan-shaped pieces receive lower part pressure and can upwards open, soil or broken coal petrography in the sample outer chamber gets into the sample inner chamber this moment, along with going on of probing, after the sample inner chamber is filled with, soil or coal petrography of sample get into in the drilling rod, because the drilling rod constantly rotates its inside flight in probing process constantly rotates, soil or coal petrography that will get into the sample in the drilling rod upwards carries ground, save soil or coal petrography on the ground, meanwhile, the soil which can not enter the sampling inner cavity is discharged out of the sampling outer cavity from the soil discharge port after the sampling outer cavity is filled, thereby ensuring the continuous drilling, when the required drilling depth is reached, the drilling is stopped, the device is retracted to the ground, the upward pressure on the lower parts of the four 90-degree fan-shaped pieces disappears, the sampling soil or the crushed coal rock in the sampling inner cavity, the four 90-degree fan-shaped pieces are closed downwards under the action of gravity, and finally the four 90-degree fan-shaped pieces are completely closed under the limiting action of the supporting plate and then restored to form a disc shape, the lower end of the sampling inner cavity is sealed, thus, when the device returns to the ground, workers can take out the soil or coal rock in the drill rod and the sampling inner cavity in sequence, soil or coal rock in the sampling inner cavity is used for sampling the drilling reaching position, and soil or broken coal rock which is conveyed to the ground in the drill rod and is conveyed to the ground before is sequentially used as samples which are collected when the drilling depth is continuously increased from top to bottom; therefore, the device can sample the soil or coal rocks at different depths in sequence in the drilling process, thereby not only reducing the damage condition to the soil body, but also effectively shortening the sampling time.
drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of the support plate and movable baffle of FIG. 1;
Fig. 3 is a schematic structural diagram of the middle spiral piece of the present invention.
In the figure: 1. the device comprises a drill rod, 2, a spiral sheet, 3, a sampling inner cylinder, 4, an annular retainer ring, 5 and 90-degree fan-shaped sheets, 6, a support plate, 7, a drill bit, 8, a sampling outer cavity, 9, a soil discharge port, 10, a sampling inner cavity, 11 and a sampling shell.
Detailed Description
The present invention will be further explained below.
Described in the patent above in fig. 1, as shown in fig. 1 to 3, the present invention comprises a sampling housing 11, a sampling inner tube 3, a drill 7 and a drill rod 1,
The sampling inner cylinder 3 is fixed in the sampling shell 11, a sampling outer cavity 8 is formed between the sampling inner cylinder 3 and the sampling shell 11, the sampling inner cavity 10 is arranged in the sampling inner cylinder 3, the drill bit 7 is fixed at the lower end of the sampling shell 11, a soil inlet formed in the drill bit 7 is communicated with the sampling outer cavity 8, and a soil discharge port 9 is formed at the top of the sampling outer cavity 8;
The lower end of the sampling inner cylinder 3 is fixedly provided with four supporting plates 6, and the four supporting plates 6 are positioned on the same horizontal plane and are arranged in a cross shape; the upper parts of the four supporting plates 6 are provided with movable baffles, and one sides of the movable baffles are hinged with the inner wall of the sampling inner cylinder 3 through hinges;
The drill rod 1 is a hollow rod with openings at two ends, a spiral sheet 2 is arranged in the drill rod 1, the outer diameter of the drill rod 1 is slightly smaller than the inner diameter of the sampling inner cylinder 3, mounting threads are arranged on the inner wall close to the upper end of the sampling inner cylinder 3 and the outer wall close to the lower end of the drill rod 1, and the lower end of the drill rod 1 is connected with the upper end of the sampling inner cylinder 3 through threads; an annular retainer ring 4 is arranged at the lower part of the thread of the sampling inner cylinder 3, and the circumference of the annular retainer ring 4 is fixedly connected with the inner wall of the sampling inner cylinder 3.
as shown in fig. 2, further, the movable baffle plate is composed of four 90 ° sectors 5, the arc edges of the four 90 ° sectors 5 are respectively hinged to the inner wall of the sampling inner cylinder 3 by hinges, and the four 90 ° sectors 5 are formed in a disc shape in a horizontally closed state. Adopt this kind of structure soil or coal petrography top-opening fanning strip that conveniently take a sample when probing to get into the sample inner chamber, four 90 fanning strips 5 can be closed completely and constitute the disc when accomplishing the sample, also can be better seal sample inner chamber 10, prevent to withdraw soil or coal petrography that ground in-process was taken a sample at this device and fall into in the drilling.
Further, the inner diameter of the annular retainer ring 4 is smaller than the outer diameter of the drill rod 1. Can carry out spacingly to it in this way to drilling rod 1 and the 3 threaded connection processes of sample inner tube, guarantee its and the stability of being connected of sample inner tube 3.
When drilling and sampling are carried out, firstly, a drill rod 1 and a sampling inner cylinder 3 are fixedly connected through threads, then, drilling is carried out on a stratum to be explored, in the downward drilling process of a drill bit 7, drilled soil or broken coal rock enters a sampling outer cavity 8 through a soil inlet, as the soil amount or the broken coal rock amount is increased continuously, four 90-degree fan-shaped sheets 5 are opened upwards under the lower pressure, at the moment, the soil or the broken coal rock in the sampling outer cavity 8 enters a sampling inner cavity 10, as the drilling is continued, after the sampling inner cavity 10 is filled, the sampled soil or coal rock enters the drill rod 1, as the helical sheets 2 in the drill rod 1 are continuously rotated in the drilling process, the sampled soil or coal rock entering the drill rod 1 is upwards conveyed to the ground, the soil or coal rock is stored on the ground, and meanwhile, the soil which cannot enter the sampling inner cavity 10 is discharged out of the sampling outer cavity 8 from a soil discharge port 9 after the sampling outer cavity 8 is filled, thus ensuring the continuous drilling, stopping drilling after reaching the required drilling depth, withdrawing the device to the ground, eliminating the upward pressure on the lower parts of the four 90-degree fan-shaped pieces 5, taking the sampling soil or breaking coal rocks in the sampling cavity 10, the four 90-degree fan-shaped pieces 5 are closed downwards under the action of gravity, and finally the four 90-degree fan-shaped pieces 5 are completely closed under the limiting action of the supporting plate 6 and then restored to form a disc shape, the lower end of the sampling inner cavity 10 is sealed, thus, when the device returns to the ground, workers can take out the soil or coal rock in the drill rod 1 and the sampling inner cavity 10 in sequence, and the soil or coal rock in the sampling inner cavity 10 is used for sampling the drilling reaching position, and the soil or broken coal rock which is in the drill rod 1 and has been conveyed to the ground before is sequentially used as samples which are collected when the drilling depth is continuously increased from top to bottom.
Claims (3)
1. a hollow sampling drilling device is characterized by comprising a sampling shell (11), a sampling inner cylinder (3), a drill bit (7) and a drill rod (1),
The sampling inner cylinder (3) is fixed in the sampling shell (11), so that a sampling outer cavity (8) is formed between the sampling inner cylinder (3) and the sampling shell (11), a sampling inner cavity (10) is formed inside the sampling inner cylinder (3), the drill bit (7) is fixed at the lower end of the sampling shell (11), a soil inlet formed in the drill bit (7) is communicated with the sampling outer cavity (8), and a soil discharge port (9) is formed in the top of the sampling outer cavity (8);
the lower end of the sampling inner cylinder (3) is fixedly provided with four supporting plates (6), and the four supporting plates (6) are positioned on the same horizontal plane and are arranged in a cross shape; movable baffles are arranged at the upper parts of the four supporting plates (6), and one sides of the movable baffles are hinged with the inner wall of the sampling inner cylinder (3) through hinges;
The drill rod (1) is a hollow rod with openings at two ends, a spiral sheet (2) is arranged in the drill rod, the outer diameter of the drill rod (1) is slightly smaller than the inner diameter of the sampling inner cylinder (3), mounting threads are arranged on the inner wall close to the upper end of the sampling inner cylinder (3) and the outer wall close to the lower end of the drill rod (1), and the lower end of the drill rod (1) is connected with the upper end of the sampling inner cylinder (3) through threads; an annular check ring (4) is arranged at the lower part of the thread of the sampling inner cylinder (3), and the circumference of the annular check ring (4) is fixedly connected with the inner wall of the sampling inner cylinder (3).
2. A hollow, samplable drilling device according to claim 1, wherein the movable barrier consists of four 90 ° sectors (5), the arc edges of the four 90 ° sectors (5) are hinged to the inner wall of the sampling inner cylinder (3) by hinges, respectively, and the four 90 ° sectors (5) are formed into a disc shape in the horizontally closed state.
3. a hollow, sampleable drilling device according to claim 1, wherein the inner diameter of the annular collar (4) is smaller than the outer diameter of the drill rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920339976.XU CN209764471U (en) | 2019-03-18 | 2019-03-18 | Hollow sampling drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920339976.XU CN209764471U (en) | 2019-03-18 | 2019-03-18 | Hollow sampling drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209764471U true CN209764471U (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920339976.XU Expired - Fee Related CN209764471U (en) | 2019-03-18 | 2019-03-18 | Hollow sampling drilling device |
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| Country | Link |
|---|---|
| CN (1) | CN209764471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916659A (en) * | 2019-03-18 | 2019-06-21 | 徐州工程学院 | A kind of hollow sampling drilling rig |
-
2019
- 2019-03-18 CN CN201920339976.XU patent/CN209764471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916659A (en) * | 2019-03-18 | 2019-06-21 | 徐州工程学院 | A kind of hollow sampling drilling rig |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210318 |
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| CF01 | Termination of patent right due to non-payment of annual fee |