CN202693369U - Coal mine downhole spot sampling device - Google Patents
Coal mine downhole spot sampling device Download PDFInfo
- Publication number
- CN202693369U CN202693369U CN 201220351029 CN201220351029U CN202693369U CN 202693369 U CN202693369 U CN 202693369U CN 201220351029 CN201220351029 CN 201220351029 CN 201220351029 U CN201220351029 U CN 201220351029U CN 202693369 U CN202693369 U CN 202693369U
- Authority
- CN
- China
- Prior art keywords
- spring
- sampling
- sample tap
- stopple coupon
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a coal mine downhole spot sampling device. The device comprises a sampling pipe and a drill bit fixedly arranged on the lower side of the sampling pipe, the drill bit and the sampling pipe are arranged in a coaxial line, the inner cavity of the sampling pipe is a sampling cavity, a fixed baffle is arranged on the bottom port of the sampling pipe, the lower side of the fixed baffle is provided with a rotary baffle, and the drillstock of the drill bit is fixedly connected to the fixed baffle after penetrating through the rotary baffle, the fixed baffle is provided with a first sampling port, the rotary baffle is provided with a second sampling port, the first sampling port and the second sampling port correspondingly surround the axis and are arranged in a staggered mode, the rotary baffle is provided with an arc-shaped spring slotted hole which surrounds an axis, the spring slotted hole is internally provided with a spring, one end of the spring is connected with the fixed baffle, and the other end of the spring is connected with the rotary baffle. The device disclosed by the utility model aims at the defects of long time consumption and poor leakproofness existing in coal bed spot sampling, and the coal mine downhole spot sampling device can be used for sampling quickly and storing a coal sample hermetically.
Description
Technical field
The utility model belongs to the coal mine gas prevention and control field, device for fixed point sampling under especially a kind of coal mine.
Background technology
The China's coal-mine Gas Disaster is serious, and gas explosion, coal and gas burst accident happen occasionally, and the safety of coal miner in serious threat.Especially along with the increase of the coal mining degree of depth, coal seam gas-bearing capacity also increases thereupon, and it is significant for the life security of the safety in production in colliery and coal miner therefore to measure exactly coal seam gas-bearing capacity.
Can the factor that affect coal seam gas-bearing capacity mensuration accuracy be a lot, accomplish that wherein fast sampling and the airtight of the coal sample of getting have important impact for measuring exactly coal seam gas-bearing capacity.
The utility model content
The purpose of this utility model designs for the poor shortcoming of length consuming time, leakproofness that fixed point sampling of coal bed exists, and can accomplish rapid sampling, to device for fixed point sampling under the coal mine of getting coal sample sealed storage.
For achieving the above object, the utility model adopts following technical scheme: device for fixed point sampling under a kind of coal mine, comprise the drill bit that stopple coupon and stopple coupon downside set firmly, drill bit and stopple coupon are the coaxial line setting, the inner chamber of stopple coupon is sampling cavity, the bottom nozzle of stopple coupon arranges fixed dam, the downside of fixed dam is provided with flap shutter, the drillstock of drill bit interted flap shutter and being fixedly connected on the fixed dam, fixed dam is provided with the first sample tap, flap shutter is provided with the second sample tap, the first sample tap and the second sample tap respective rings are around the axis misalignment setting, and flap shutter is provided with the circular arc spring slotted eye around axis, establishes spring in the spring slotted eye, spring one end is connected on the fixed dam, and the spring other end is connected on the flap shutter.
Spring is connected and fixed end, the first sample tap and second sample tap of end, spring connection of rotating baffle plate of baffle plate for setting gradually, described fixed dam downside is installed with the column block card that interts at spring slotted eye one end, and block card and the spring terminal that is connected and fixed baffle plate are positioned at the same end of spring slotted eye.
The flap shutter lower surface is installed with the teeth around the second sample tap border.
The stopple coupon end sealing, stopple coupon top pipe shaft is provided with the external thread for the screwed connection drilling rod.
The border of flap shutter is provided with the edge of parcel stopple coupon pipe shaft.
The utility model is a kind of device of coal mine underground coal bed spot sampling, in strict accordance with requirement of explosion proof design under the coal mine, in the process of sampling, have deep hole, fast, fixed point, airtight advantage, lay a good foundation for measuring exactly coal seam gas-bearing capacity.This apparatus structure is simple, and is easy to operate, quick, is easy to promote.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A view among Fig. 1;
Fig. 3 is the structural representation of drill bit and fixed dam and flap shutter;
Structural representation when Fig. 4 is the coincidence of the first sample tap the second sample tap.
Embodiment
By device for fixed point sampling under a kind of coal mine of Fig. 1-shown in Figure 3, comprise the drill bit 13 that stopple coupon 2 and stopple coupon 2 downsides set firmly, drill bit 13 is for being used for the adjustable speed drill bit 13 of broken coal cinder, the inner chamber of stopple coupon 2 is for being used for the sampling cavity 3 of storage coal sample, stopple coupon 2 is vertical pipe, stopple coupon 2 top ports are by end cap seal, and stopple coupon 2 top pipe shafts are provided with the external thread 1 for the screwed connection drilling rod, in order to realize deep hole, spot sampling.The bottom nozzle of stopple coupon 2 is installed with the fixed dam 4 of level, fixed dam 4 is the circular baffle plate consistent with stopple coupon 2 cross sections, the downside of fixed dam 4 is provided with the flap shutter 6 of level, and the border of flap shutter 6 is provided with the vertical edges edge of parcel stopple coupon 2 bottom pipe shafts, and flap shutter 6 is for covering shape.
The drillstock 9 of drill bit 13 interted flap shutter 6 and being fixedly connected on the fixed dam 4, the drillstock 9 of drill bit 13 is screwed connection with fixed dam 4, the top of drillstock 9 is the multidiameter shape, drillstock 9 tops are provided for the external thread of screwed connection fixed dam 4, flap shutter 6 arranges trepanning, and flap shutter 6 is set on the step of the downside of drillstock 9 tip male thread and the multidiameter part that gear is located at drillstock 9 by trepanning.
Drillstock 9, drill bit 13, fixed dam 4, flap shutter 6 and stopple coupon 2 are the coaxial line setting, fixed dam 4 is provided with the first sample tap 12, flap shutter 6 is provided with the second sample tap 7, flap shutter 6 lower surfaces are installed with the teeth 8 around the second sample tap 7 borders, so that broken coal sample enters in the sampling cavity 3.The first sample tap 12 and the second sample tap 7 respective rings arrange around the axis misalignment certain angle, the first sample tap 12 and the second sample tap 7 are circular open and both centers of circle are positioned on the same circular arc line, the first sample tap 12 is identical with the second sample tap 7 diameters, flap shutter 6 is provided with circular arc strip spring slotted eye 11, spring slotted eye 11 is also around the axis setting, spring slotted eye 11 built-in springs 10, spring 10 free states (being the not state for stretching or compressing of spring 10) lower length and spring slotted eye 11 are suitable, spring 10 1 ends are connected on the fixed dam 4, spring 10 other ends are connected on the flap shutter 6, described fixed dam 4 downsides are installed with the column block card 5 that interts at spring slotted eye 11 1 ends, and block card 5 and spring 10 ends that are connected and fixed baffle plate 4 are positioned at the same end of spring slotted eye 11.Spring 10 is connected and fixed the end of baffle plate 4, the other end, the first sample tap 12 and second sample tap 7 of spring 10 connection of rotating baffle plates 6 arranges counterclockwise around axis successively.Described spring slotted eye 11 is suitable around the distance between the circumference angle of axis and the first sample tap 12, the second sample tap 7, namely under spring 10 normal laying states, spring slotted eye 11 should be at least greater than the corresponding axis angle of line between the two point of proximity of the first sample tap 12 and the second sample tap 7 around the circumference angle of axis, like this, behind stopple coupon 2 jointed rods, under the drive of drilling rod, rotate, the second sample tap 7 of flap shutter 6 can overlap with the first sample tap 12 of fixed dam 4, and takes coal sample.
Certainly, the utility model is not limited to above-mentioned form, spring 10 1 ends both can be fixedly connected on the fixed dam 4, can directly be fixedly connected on the block card 5 again, and spring 10 is connected and fixed the end of baffle plate 4, the other end, the second sample tap 7 and first sample tap 12 of spring 10 connection of rotating baffle plates 6 also can arrange successively clockwise.
As shown in Figure 4, when the first sample tap 12 and the second sample tap 7 overlapped fully, spring 10 compressions formed the coal feed point that can make coal sample enter sampling cavity 3; When spring 10 affranchises state, spring 10 promotes that rotatable baffle plate 6 rotates so that the first sample tap 12 of two baffle plates, the second sample tap 7 stagger, thereby so that coal feed point is closed, namely can regulate the position of rotatable baffle plate 6 by the state of spring 10, by unlatching and the closure of flap shutter 6 and fixed dam 4 co-controlling coal feed points.
When taking a sample work, get into predetermined sample position with conventional drilling rod first, then withdraw from the front end that drilling rod is connected to this sampler on drilling rod.Before drill bit 13 arrives predetermined position, coal seam, sample tap is in closure state, coal sample can not enter sampling cavity 3, in case drill bit 13 arrives predetermined drilling depth, the High Rotation Speed drilling rod, this moment, drilling rod drove rotation of sampler (fixed dam 4 and flap shutter 6 rotate together), after the flap shutter 6 of sampler touches coal body, under the effect of friction force and moment of torsion, spring 10 compressions, the first sample tap 12 and the second sample tap 7 overlapped and formed coal feed point this moment, and rotary drill rod just can have been got coal sample.After the sampling, prepare to extract drilling rod, do not had moment of torsion and friction this moment, and spring returns to free state, and the first sample tap 12 and the second sample tap 7 stagger, and close coal feed point.
Claims (5)
1. device for fixed point sampling under the coal mine, it is characterized in that: comprise the drill bit that stopple coupon and stopple coupon downside set firmly, drill bit and stopple coupon are the coaxial line setting, the inner chamber of stopple coupon is sampling cavity, the bottom nozzle of stopple coupon arranges fixed dam, the downside of fixed dam is provided with flap shutter, the drillstock of drill bit interted flap shutter and being fixedly connected on the fixed dam, fixed dam is provided with the first sample tap, flap shutter is provided with the second sample tap, the first sample tap and the second sample tap respective rings are around the axis misalignment setting, flap shutter is provided with the circular arc spring slotted eye around axis, establish spring in the spring slotted eye, spring one end is connected on the fixed dam, and the spring other end is connected on the flap shutter.
2. device for fixed point sampling under the coal mine as claimed in claim 1, it is characterized in that: spring is connected and fixed end, the first sample tap and second sample tap of end, spring connection of rotating baffle plate of baffle plate for setting gradually, described fixed dam downside is installed with the column block card that interts at spring slotted eye one end, and block card and the spring terminal that is connected and fixed baffle plate are positioned at the same end of spring slotted eye.
3. device for fixed point sampling under the coal mine as claimed in claim 2, it is characterized in that: the flap shutter lower surface is installed with the teeth around the second sample tap border.
4. such as device for fixed point sampling under each described coal mine of claim 1-3, it is characterized in that: the stopple coupon end sealing, stopple coupon top pipe shaft is provided with the external thread for the screwed connection drilling rod.
5. device for fixed point sampling under the coal mine as claimed in claim 4 is characterized in that: the border of flap shutter is provided with the edge of parcel stopple coupon pipe shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351029 CN202693369U (en) | 2012-07-19 | 2012-07-19 | Coal mine downhole spot sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351029 CN202693369U (en) | 2012-07-19 | 2012-07-19 | Coal mine downhole spot sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202693369U true CN202693369U (en) | 2013-01-23 |
Family
ID=47548973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220351029 Expired - Fee Related CN202693369U (en) | 2012-07-19 | 2012-07-19 | Coal mine downhole spot sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202693369U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115797A (en) * | 2013-02-28 | 2013-05-22 | 中国矿业大学 | Coal mine sealing and sampling device and application method thereof |
| CN104316347A (en) * | 2014-10-24 | 2015-01-28 | 沈阳宇安科技有限公司 | Locating pin type coal seam gas content measurement sampling device and method |
| CN106840755A (en) * | 2017-03-28 | 2017-06-13 | 中国地质大学（武汉） | The device of fixed point fast sampling in a kind of underground coal body |
| CN107576773A (en) * | 2017-09-19 | 2018-01-12 | 湖南科技大学 | Coal sample sampler and coal and gas prominent monitoring system and Forecasting Methodology |
| CN110926856A (en) * | 2019-11-20 | 2020-03-27 | 武汉科技大学 | Collecting device for geotechnical engineering exploration |
-
2012
- 2012-07-19 CN CN 201220351029 patent/CN202693369U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115797A (en) * | 2013-02-28 | 2013-05-22 | 中国矿业大学 | Coal mine sealing and sampling device and application method thereof |
| CN103115797B (en) * | 2013-02-28 | 2015-07-29 | 中国矿业大学 | A kind of colliery sealed sampling device and using method thereof |
| CN104316347A (en) * | 2014-10-24 | 2015-01-28 | 沈阳宇安科技有限公司 | Locating pin type coal seam gas content measurement sampling device and method |
| CN106840755A (en) * | 2017-03-28 | 2017-06-13 | 中国地质大学（武汉） | The device of fixed point fast sampling in a kind of underground coal body |
| CN107576773A (en) * | 2017-09-19 | 2018-01-12 | 湖南科技大学 | Coal sample sampler and coal and gas prominent monitoring system and Forecasting Methodology |
| CN107576773B (en) * | 2017-09-19 | 2019-11-05 | 湖南科技大学 | Coal sample sampler and coal and gas prominent monitoring system and prediction technique |
| CN110926856A (en) * | 2019-11-20 | 2020-03-27 | 武汉科技大学 | Collecting device for geotechnical engineering exploration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202693369U (en) | Coal mine downhole spot sampling device | |
| CN106596174B (en) | The closely horizontal long range coal sample pressure maintaining fixed point of underground coal mine is closed to take method | |
| CN205025415U (en) | Experimental detection system of gas drainage under suction drilling hole sealing effect | |
| CN111006968B (en) | Fixed-point testing method for coal seam gas content and closed sampling device for implementing method | |
| CN203716841U (en) | Double-layer internal slag discharging and plugging prevention drilling tool for soft outburst coal seam drilling | |
| CN212202047U (en) | Integrated carbon dioxide fracturing equipment | |
| CN209945753U (en) | Vertical rotation drilling type sampling tube | |
| CN208736263U (en) | A kind of coal seam Deephole pre-splitting blasting charge constitution | |
| CN103412094B (en) | Triaxial one-time coal and gas outburst test device | |
| CN205071552U (en) | Colliery is detection device's explosion proof enclosure in pit | |
| CN201818264U (en) | Coring tool-core claw | |
| CN204495593U (en) | A kind of coal seam low temperature sampler | |
| CN107631670A (en) | A kind of means for loading and its application method suitable for Underground Engineering Blasting | |
| CN204225783U (en) | A kind of large aperture, coal seam pore-forming drilling rod | |
| CN208792953U (en) | A kind of coring drilling pipe | |
| CN204330243U (en) | A kind of borehole sealing pick-up unit | |
| CN203394572U (en) | Liquid state and gas state pressurizing type gas hole packer | |
| CN209510288U (en) | A kind of underground coal mine water guide borehole sealing device | |
| CN204002829U (en) | A kind of hobboing cutter positioner for hard rock mole cutterhead | |
| CN202673055U (en) | Emergency escape door of mine-used lifesaving cabin | |
| CN206082898U (en) | Be applied to brokenly coal and prevent abrupt nozzle rotary device | |
| CN102252872B (en) | Device for sampling parameters of environment outside underground shelter in coal mine and non-coal mine | |
| CN206220952U (en) | A kind of gas drilling wellbore trajectory measuring while drilling device | |
| CN205228292U (en) | Clearance special use section of thick bamboo that miss -fires | |
| CN218121423U (en) | A layering sampling device for opencut rock roller rock drilling powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180719 |