CN211784414U - Gas content fixed point sampling device - Google Patents
Gas content fixed point sampling device Download PDFInfo
- Publication number
- CN211784414U CN211784414U CN202020197733.XU CN202020197733U CN211784414U CN 211784414 U CN211784414 U CN 211784414U CN 202020197733 U CN202020197733 U CN 202020197733U CN 211784414 U CN211784414 U CN 211784414U
- Authority
- CN
- China
- Prior art keywords
- barrel
- air bag
- barb
- gas content
- sampling device
- 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.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas content fixed point sampling device, it includes the drilling rod, the barrel, ejector pad and telescopic link, the inside of drilling rod is formed with the cavity and the right-hand member of drilling rod installs the drill bit, the barrel, ejector pad and telescopic link are installed in the cavity of drilling rod from right to left side in proper order, the right-hand member of barrel has seted up an opening, the left end of barrel is fixed with the right-hand member joint of ejector pad, the left end of ejector pad is connected with the telescopic link drive, in order to drive the barrel under the extension and the shrink of telescopic link, therefore, the process that the drilling rod need constantly withdraw from and stretch into in the process of segmentation propulsion coal seam has been avoided, time has been saved, and the drilling rod has been avoided easily appearing the dislocation and can't follow the situation that the route impel; the air bag in the sealing component is attached to the inner wall of the cylinder body and is communicated with an external air source, and the air bag is also communicated with the air bag so as to extend and expand the air bag and plug an opening at the right end of the cylinder body under the supply of the air source, thereby avoiding the escape of gas in a coal sample.
Description
Technical Field
The utility model relates to a coal seam gas content measurement field specifically is a gas content fixed point sampling device.
Background
In the prior art, in order to obtain a coal sample for measuring the gas content, a hole needs to be drilled to a specified coal seam position, then the drilling tool is withdrawn, the core taking pipe is conveyed to the bottom of the hole to drill and core, the sampling is completed by means of friction drilling of the core taking pipe and the coal seam during sampling, the drill rod is withdrawn after the coal sample is obtained, and the coal sample is filled into a special coal tank to measure and analyze the gas content.
In the sampling process, the process is complex, the efficiency is low, and the sampling time is far beyond the regulation that the coal seam sampling is not more than 5 min; due to poor stability of the drill holes in the soft coal seam, the drill holes are drilled again after the drill withdrawal and easily deviate from the preset drill hole path, so that effective sampling can not be carried out on the soft coal seam.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a gas content fixed point sampling device to solve the above-mentioned problem that can't carry out the fixed point sample to the soft coal seam in effective time limit.
In order to achieve the above object, the utility model provides a gas content fixed point sampling device, include:
the device comprises a drill rod, a barrel, a push block and a telescopic rod;
a cavity is formed in the drill rod, a drill bit is installed at one end of the drill rod, the barrel, the push block and the telescopic rod are sequentially installed in the cavity along the direction far away from the drill bit, an opening is formed in one end, close to the drill bit, of the barrel, the other end of the barrel is fixedly clamped with the push block, and the telescopic rod is in driving connection with one end, far away from the barrel, of the push block so that the barrel is far away from or close to the drill bit under the driving of the telescopic rod; the air bag sealing device is characterized in that a sealing component is attached to the inner wall of the barrel and communicated with an air source, the sealing component comprises an air bag and an air bag, a first groove matched with the air bag is formed in the inner wall of the open end of the barrel, the air bag is contained in the first groove, the air bag is attached to the inner wall of the barrel and communicated with the air source, and the air bag is communicated with the air bag so as to stretch and expand the air bag and seal the opening of the barrel under the supply of the air source.
Preferably, the air source is communicated with the air bag through an inflation tube, a first through hole penetrates through one end, far away from the drill bit, of the barrel, a second through hole penetrates through the push block, and the inflation tube sequentially penetrates through the first through hole, the second through hole and the telescopic rod to be communicated with the air source.
Preferably, the inflation tube is provided with an air valve.
Preferably, the drill rod is provided with a filter screen at one end provided with the drill bit, and the filter screen is hollowed out.
Preferably, the ejector pad is close to the one end of barrel is outstanding to be formed with the joint piece, joint piece interval is provided with first barb, the barrel is close to the second recess has been seted up to the one end of ejector pad, the one end inner wall setting of second recess install with the second barb of first barb looks adaptation, the other end inner wall setting of second recess is installed the elastic component, the elastic component butt first barb.
Preferably, the first barb and the second barb are both obliquely arranged and the oblique directions of the first barb and the second barb are opposite.
Preferably, the elastic member is a compression spring.
The utility model provides a pair of gas content fixed point sampling device has following beneficial effect: after the drill rod drills into the coal bed in a sectional mode, the drill rod is kept still, the coal bed falling into the cylinder is taken out under the stretching of the telescopic rod, the cylinder is stretched into the drill rod again, the reciprocating operation is carried out until the preset depth is reached, after the drill rod drills into the sampling depth, the coal sample enters the cylinder, the air source is started, the opening of the cylinder is plugged after the air bag expands, the coal sample collected at a fixed point is taken out under the stretching of the telescopic rod, the drill rod is short in time consumption in sampling and does not need to be withdrawn repeatedly, so that the dislocation of a drilling path in the soft coal bed is avoided, and the air bag is packaged, so that the escape of gas in sampling is; the arrangement of the air valve is convenient for releasing other air bags after taking out the coal sample, so as to collect the coal sample in the cylinder; the telescopic link rotates with the ejector pad to be connected to avoid barrel and ejector pad if rotatory along with the drilling rod, probably to the harm that the telescopic link caused.
Drawings
The accompanying drawings, which are described herein to provide a further understanding of the invention and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention without forming an undue limitation to the invention, in which:
fig. 1 is a schematic structural diagram of an embodiment of a fixed-point gas content sampling device provided by the present invention;
FIG. 2 is a schematic structural view of an embodiment of the seal assembly of FIG. 1 after inflation;
fig. 3 is an enlarged schematic view of region a in fig. 1.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1-2, fig. 1 is a schematic structural diagram of an embodiment of a fixed-point gas content sampling device provided by the present invention, and fig. 2 is a schematic structural diagram of an embodiment of a sealing assembly in fig. 1 after being inflated. The gas content fixed-point sampling device comprises a drill rod 1, a cylinder 2, a push block 3 and a telescopic rod 4, wherein a cavity is formed inside the drill rod 1, a drill bit 11 is installed at the right end of the drill rod 1, the cylinder 2, the push block 3 and the telescopic rod 4 are sequentially installed in the cavity of the drill rod 1 from right to left, and an opening is formed at the right end of the cylinder 2 so as to collect a falling coal sample into the cylinder 2 under the rotation of the drill bit 11; the left end of the barrel body 2 is clamped and fixed with the right end of the push block 3, the left end of the push block 3 is in driving connection with the telescopic rod 4 so as to push the barrel body 2 under the extension and contraction of the telescopic rod 4, and further the barrel body 2 is far away from or close to the right end of the drill rod 1, and the push block 3 can also make rotary motion relative to the telescopic rod 4 while the telescopic rod 4 is in driving connection with the push block 3, so that the damage to the telescopic rod 4 caused by the action that the barrel body 2 and the push block 3 respectively contact with the inner wall of the drill rod 1 and then rotate along with the drill rod 1 is avoided; the inner wall of the barrel body 2 is provided with a sealing component in an adhering mode, the sealing component is communicated with an air source and comprises an air bag 51 and an air bag 52, the inner wall of the right end of the barrel body 2 is provided with a first groove 21 matched with the air bag 52, the air bag 52 can be accommodated in the first groove 21 when not ventilated so as to avoid blocking the income of a coal sample in the barrel body 2, the air bag 51 is arranged on the inner wall of the barrel body 2 in an adhering mode, the air bag 51 is communicated with an external air source, the air bag 52 is also communicated with the air bag 51 so as to enable the air bag 52 to be expanded and seal an opening at the right end of the barrel body 2 under the supply of the air source, the air bag 51 and the air bag 52 can effectively seal the coal sample collected in the. When the device works, after the drill rod 1 drills a coal bed in a sectional mode, the position of the drill rod 1 is kept unchanged, namely, repeated drilling and retreating are not needed, the coal bed falling into the cylinder body 2 can be taken out under the stretching of the telescopic rod 4, the cylinder body 2 is stretched into the drill rod 1 again, reciprocating operation is carried out until the preset depth is reached, after the drill rod 1 drills a sampling depth, a coal sample enters the cylinder body 2, an air source is started, the air bag 52 is expanded, an opening at the right end of the cylinder body 2 is plugged, and the coal sample collected at a fixed point is taken out under the stretching of the telescopic rod 4; the telescopic rod 4 is preferably an electric telescopic rod, and it should be noted that the telescopic rod 4 is pushed along with the drill rod 1 to always maintain the relative position of the cylinder 2 and the drill bit 11, so as to avoid the situation that the coal sample cannot be collected due to too long distance between the cylinder and the drill bit.
Preferably, the air bag 51 and the air bag 52 are communicated with an air source through an inflation tube 53, a first through hole is arranged at the middle position of the left end of the barrel 2 in a penetrating manner, a second through hole is arranged at the middle position of the push block in a penetrating manner, and the inflation tube 53 sequentially penetrates through the first through hole, the second through hole and the telescopic rod 4 to be communicated with the external air source.
Preferably, the gas valve 54 is installed on one side of the left end of the cylinder body 2, which is attached to the gas filling tube 53, and the gas valve 54 controls the gas filling and discharging of the gas bag 51 and the gas bag 52, that is, after the cylinder body 2 is taken out, the gas valve 54 is firstly closed, and after the gas filling tube 53 is disconnected from the gas source, the gas valve 54 is opened, so that the gas filled in the gas bag 51 and the gas bag 52 is released and escapes, so as to take out the coal sample collected in the cylinder body 2.
Preferably, the right end opening of the drill rod 1 is further packaged with a filter screen 6, and the filter screen 6 is arranged in a hollow mode to intercept massive coal samples which are still large after being drilled and cracked by the drill bit 11 in the soft coal layer.
For a better explanation of the connection of the push block 3 to the cylinder 2, please continue to refer to fig. 3. The outstanding joint piece 31 that is formed with of right-hand member of ejector pad 3, the upper end interval of joint piece 31 is provided with first barb 311, second recess 22 has been seted up to the left end of barrel 2, the second barb 23 with first barb 311 looks adaptation is installed in the upper end inner wall setting of second recess 22, the inner wall of the lower extreme of second recess 22 sets up installs elastic component 23, the first barb 311 of up end butt of elastic component 23, when ejector pad 3 and barrel 2 are connected, push down first barb 311, under the compression of elastic component 23, first barb 311 slides in and is fixed with second barb 23 joint, after the coal seam sample is ended, push down first barb 311 once more in order to dismantle the separation with ejector pad 3 and barrel 2, and then control gas valve 54 is with the gas release in air pocket 51 and the air pocket 52 and obtain the coal sample.
Preferably, the first barb 311 and the second barb 23 are both disposed obliquely and the inclination directions of the first barb 311 and the second barb 23 are opposite, specifically, the first barb 311 inclines toward the left side, and the second barb 23 inclines toward the right side.
Preferably, the elastic member 23 is a compression spring.
In specific implementation, after the drill rod 1 drills a coal seam to be detected in a sectional mode, the position of the drill rod 1 is kept unchanged, namely, repeated drilling and retreating are not needed, the coal seam falling into the barrel body 2 can be taken out under the stretching of the telescopic rod 4, the barrel body 2 extends into the drill rod 1 again, reciprocating operation is carried out until the preset depth is reached, after the drill rod 1 drills the sampling depth, a coal sample enters the barrel body 2, an air source is started, the air bag 52 is expanded to plug an opening at the right end of the barrel body 2, the coal sample collected at a fixed point is taken out under the stretching of the telescopic rod 4, and the telescopic rod 4 is pushed in the deep coal seam of the drill rod 1 along with the depth of the drill rod; after sampling of the coal bed is finished, the push block 3 and the barrel 2 are taken out from the interior of the drill rod 1 under the stretching of the telescopic rod 4, the first barb 311 is pressed down to detach and separate the push block 3 from the barrel 2, the gas valve 54 is firstly closed and the connection between the gas filling pipe 53 and an external gas source is disconnected, and then the gas valve 54 is opened to release the gas in the gas bag 51 and the gas bag 52 and obtain a coal sample so as to measure the subsequent gas content.
The utility model provides a pair of gas content fixed point sampling device, it includes the drilling rod, the barrel, ejector pad and telescopic link, the inside of drilling rod is formed with the cavity and the right-hand member of drilling rod installs the drill bit, the barrel, ejector pad and telescopic link are installed in the cavity of drilling rod from right side to left side in proper order, the right-hand member of barrel has seted up an opening, the left end of barrel is fixed with the right-hand member joint of ejector pad, the left end of ejector pad is connected with the telescopic link drive, in order to drive the barrel under the extension and the shrink of telescopic link, therefore, the process that the drilling rod need constantly withdraw from and stretch into in the process of segmentation propulsion coal seam has been avoided, time has been saved, and the drilling rod has been avoided easily appearing the dislocation and can't follow the situation that; the inner wall of the barrel is pasted with a sealing component which is communicated with an air source, the sealing component comprises an air bag and an air bag, the inner wall of the right end of the barrel is provided with a first groove matched with the air bag, the air bag can be accommodated in the first groove when not ventilated so as to save space and avoid blocking the income of a coal sample in the barrel, the air bag is pasted on the inner wall of the barrel and is communicated with an external air source, the air bag is also communicated with the air bag so as to enable the air bag to expand and open under the supply of the air source and seal an opening at the right end of the barrel, the air bag and the air bag can effectively seal the coal sample collected in the barrel after ventilation, and the gas in the coal sample is prevented; the setting of first barb and second barb is convenient for make ejector pad and barrel effective connection fixed under the compression of elastic component and reseing.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a gas content fixed point sampling device which characterized in that includes:
the device comprises a drill rod, a barrel, a push block and a telescopic rod;
a cavity is formed in the drill rod, a drill bit is installed at one end of the drill rod, the barrel, the push block and the telescopic rod are sequentially installed in the cavity along the direction far away from the drill bit, an opening is formed in one end, close to the drill bit, of the barrel, the other end of the barrel is fixedly clamped with the push block, and the telescopic rod is in driving connection with one end, far away from the barrel, of the push block so that the barrel is far away from or close to the drill bit under the driving of the telescopic rod; the air bag sealing device is characterized in that a sealing component is attached to the inner wall of the barrel and communicated with an air source, the sealing component comprises an air bag and an air bag, a first groove matched with the air bag is formed in the inner wall of the open end of the barrel, the air bag is contained in the first groove, the air bag is attached to the inner wall of the barrel and communicated with the air source, and the air bag is communicated with the air bag so as to stretch and expand the air bag and seal the opening of the barrel under the supply of the air source.
2. The fixed-point gas content sampling device according to claim 1, wherein: the air source is communicated with the air bag through an inflation tube, a first through hole penetrates through one end, far away from the drill bit, of the barrel, a second through hole penetrates through the push block, and the inflation tube sequentially penetrates through the first through hole, the second through hole and the telescopic rod to be communicated with the air source.
3. The fixed-point gas content sampling device according to claim 2, wherein: and the inflation tube is provided with an air valve.
4. The fixed-point gas content sampling device according to claim 1, wherein: the drill rod is provided with one end provided with the drill bit, and is further packaged with a filter screen which is arranged in a hollow manner.
5. The fixed-point gas content sampling device according to claim 1, wherein: the ejector pad is close to the one end of barrel is outstanding to be formed with the joint piece, joint piece interval is provided with first barb, the barrel is close to the second recess has been seted up to the one end of ejector pad, the one end inner wall setting of second recess install with the second barb of first barb looks adaptation, the other end inner wall setting of second recess is installed the elastic component, the elastic component butt first barb.
6. The fixed-point gas content sampling device according to claim 5, wherein: the first barb with the second barb all inclines to set up just first barb with the slope opposite direction of second barb.
7. The fixed-point gas content sampling device according to claim 5, wherein: the elastic piece is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197733.XU CN211784414U (en) | 2020-02-22 | 2020-02-22 | Gas content fixed point sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197733.XU CN211784414U (en) | 2020-02-22 | 2020-02-22 | Gas content fixed point sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211784414U true CN211784414U (en) | 2020-10-27 |
Family
ID=72908877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020197733.XU Active CN211784414U (en) | 2020-02-22 | 2020-02-22 | Gas content fixed point sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211784414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683595A (en) * | 2021-01-13 | 2021-04-20 | 河南科技大学第一附属医院 | Pharmacy is with trace medicament sampling equipment |
| CN114233226A (en) * | 2022-02-28 | 2022-03-25 | 陕西太合智能钻探有限公司 | Mining sealed core drill |
-
2020
- 2020-02-22 CN CN202020197733.XU patent/CN211784414U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683595A (en) * | 2021-01-13 | 2021-04-20 | 河南科技大学第一附属医院 | Pharmacy is with trace medicament sampling equipment |
| CN114233226A (en) * | 2022-02-28 | 2022-03-25 | 陕西太合智能钻探有限公司 | Mining sealed core drill |
| CN114233226B (en) * | 2022-02-28 | 2022-05-24 | 陕西太合智能钻探有限公司 | Mining sealed core drill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019140975A1 (en) | Reciprocating sampling method and device for use in fixed-point sampling of gas content | |
| CN211784414U (en) | Gas content fixed point sampling device | |
| CN105840134A (en) | Single-bag grouting hole sealing device for upward crossing boreholes and hole sealing method adopting single-bag grouting hole sealing device | |
| CN105715230B (en) | Ooze paddle list pouch injection hole sealing device and its method for sealing in middle part | |
| CN101566046A (en) | Anti-collapse hole drill tool | |
| CN106441981B (en) | Coal sample drills through package seal checker | |
| CN209444303U (en) | A kind of Geology Drilling detecting devices with plugging structure | |
| CN103452522A (en) | Gas pumping sleeve-penetrating occluder and use method thereof | |
| CN111006968B (en) | Fixed-point testing method for coal seam gas content and closed sampling device for implementing method | |
| CN205691360U (en) | Coal seam gas-bearing capacity measures advanced freezing sampler | |
| CN109322638B (en) | Gas extraction-water injection integrated pressurized grouting hole sealing device and method | |
| CN201460737U (en) | Drilling tool for preventing hole collapse | |
| CN109444952B (en) | Device and method for quickly installing and recovering seismic wave receiving in hole with high coupling | |
| CN110984980B (en) | Coal mine underground drilling fixed-point airtight sampling device | |
| CN207673305U (en) | A kind of coal bed gas seismic exploration original position coring drilling with keep up pressure drilling tool | |
| CN110208044A (en) | A kind of shallow-layer original position fluid sampling utensil and sampling method | |
| CN206753527U (en) | A kind of comprehensive coal dust collection device of coal mine drilling | |
| CN217300527U (en) | Drilling hole sealing device for karst investigation | |
| CN106769180A (en) | A kind of coring device and its coring process | |
| CN111006900A (en) | Drilling and fixed-point sampling device for coal seam gas content testing and coal seam sampling method | |
| CN106353130B (en) | Device and method for simulating pressure-maintaining drilling coring | |
| CN111271022A (en) | Coal mine gas extraction drill hole compressed air sealing method and sealing device | |
| CN108088702B (en) | Soil sampling bag and soil sampling device | |
| CN204082135U (en) | Extraction borehole sealing quality detector | |
| CN2883673Y (en) | Adjustable gas sucking and discharging fast hole sealer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |