CN204851080U - Mine high efficiency drilling rod - Google Patents
Mine high efficiency drilling rod Download PDFInfo
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- CN204851080U CN204851080U CN201520383159.6U CN201520383159U CN204851080U CN 204851080 U CN204851080 U CN 204851080U CN 201520383159 U CN201520383159 U CN 201520383159U CN 204851080 U CN204851080 U CN 204851080U
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- water cavity
- connecting rod
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- dust suction
- bar wall
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Abstract
The utility model discloses a mine high efficiency drilling rod, including the connecting rod, set up respectively and cut head and dust absorption pole in the brill at connecting rod both ends. The brill cuts the head was equipped with the drill bit water cavity in it drill bit pole main part, sets up the high -pressure spurt hole in drill bit pole main part, is equipped with water cavity hole sealing stopper in the drill bit water cavity, and water cavity hole sealing stopper one end is equipped with trades the cord, the connecting rod includes connecting rod water cavity pole wall, connecting rod air cavity pole wall that from interior to exterior set gradually, is equipped with the connecting rod water cavity in the connecting rod water cavity pole wall, is equipped with high -pressure air cavity between connecting rod water cavity pole wall and the connecting rod air cavity pole wall, the dust absorption pole includes that dust absorption pole water cavity pole wall, dust absorption pole that from interior to exterior set gradually go out air cavity pole wall, the dust absorption pole chamber pole wall that admits air. The utility model provides a switching of cutting the function can not only be realized boring by the drilling rod, can also collect dust and gas simultaneously executing to bore, has improved work efficiency, and can effectively solve the problem that drills out existing gas and transfinite and endanger with the dust of executing.
Description
Technical field
The utility model belongs to technical field of coal exploitation, relate to coal formally exploit before equipment in pre-mash gas extraction passage construction process, particularly the brill of pre-mash gas extraction passage cuts and the gas of ejection, effective collection of dust in boring in work progress.
Background technology
Coal mine gas, dust accident are one of disasters of down-hole, if there is gas, dust accident, not only can heavy damage production environment, and can cause casualties, huge loss is caused to the people, enterprise, country, therefore, elimination gas exceeding limit and dust are the preconditions of pre-gas prevention, dust accident, are also one of important leverages of mine safety production.But, due to geologic sedimentation effect, the toxic and harmfuls such as a large amount of gas are overstock in coal seam, in order to realize safe digging, under normal circumstances, before digging, first to arrange special gas pumping tunnel, adopt underground drill rig construction extraction borehole early excise gas pumping, after extraction is up to standard, digging coal can be started.
The construction in gas pumping tunnel generally includes boring and isolates the multiple working procedures such as coal seam.Concrete grammar uses underground drill rig first to execute the boring of boring certain depth, puts in boring the position, coal seam needing to isolate again after then drilling rod being changed into the drill rod special for isolating coal seam, then adopts water under high pressure to isolate coal seam.Effect is adopted in order to reach good gas pre-drainage, usual requirement boring has certain degree of depth, and the different depth position of boring needs to isolate coal seam, this just needs repeatedly to be exited from boring by drilling rod and the drill rod special repeatedly changed boring drilling rod and isolate coal seam.This drilling rod Renewal process can take a large amount of engineering times, affects programming.In the prior art, because some nervous duration of a project or other reasons, also can adopt only boring and the form of construction work of not cutting, but it is very low to adopt its gas pumping rate of extraction tunnel arranged in this way.Also there is no at present to ensure that the duration can make again the method for extraction tunnel successful.
Simultaneously, in construction extraction borehole process, after particularly many mines enter deep horizontal, coal seam gas-bearing capacity, pressure all will increase, execute and bore spray orifice, even to hole the gas exceeding limit unsafe problems that time delay spray orifice causes, the boring hole problem that collapses is also more and more outstanding, in order to overcome collapse hole and gas exceeding limit problem, have to take pressure wind row powder construction technology, but dust harzard becomes again a new difficult problem.But, in the prior art, not for special gas, the dust processing equipment of these serious problems, therefore execute a large amount of gas, dust in drill-through journey and still can be released in tunnel, cause serious gas exceeding limit, dust exceeding potential safety hazard.
Utility model content
Cause inefficiency to solve the frequent drilling rod switching difference in functionality in existing drilling rod work progress and execute the problem getting out existing gas exceeding limit and dust harzard, the utility model provides a kind of mine high efficiency drilling rod.
Technical solutions of the utility model are as follows:
A kind of mine high efficiency drilling rod, is provided with brill and cuts head, connecting rod, dust suction bar, and connecting rod one end connects brill and cuts head, and the other end connects dust suction bar.
Brill cuts head and comprises drill bit, drill bit shaft main body, drill bit water cavity, drill bit connection female, high pressure spray discharge orifice, water cavity sealing of hole plug and change cord; Drill bit is connected the two ends that female is separately positioned on drill bit shaft main body with drill bit, drill bit water cavity is arranged on the axial centre position of drill bit shaft main body and runs through drill bit shaft main body, its one end is conical through-hole, high pressure spray discharge orifice to be arranged in drill bit shaft main body and to run through drill bit shaft main body, water cavity sealing of hole plug is arranged in water cavity, the conical through-hole of its shape and drill bit water cavity matches, and its section maximum gauge is less than the diameter of drill bit water cavity, changes cord and is connected and long enough with water cavity sealing of hole plug.Preferably, high pressure spray discharge orifice is the inside trumpet degree of lip-rounding.
Connecting rod be provided with connecting rod water cavity bar wall, connecting rod air cavity bar wall, connecting rod water cavity, high pressure air cavity, connecting rod connect male be connected female with connecting rod; Connecting rod water cavity is at connecting rod water cavity bar pars intramuralis, and high pressure air cavity is between connecting rod water cavity bar wall and connecting rod air cavity bar wall; Connecting rod connects male and is connected the two ends that female is separately positioned on connecting rod with connecting rod, and connecting rod connects female and comprises the connecting rod water cavity connection female that is arranged at connecting rod water cavity bar wall one end and be arranged at the connecting rod air cavity of connecting rod air cavity bar wall with one end and be connected female; Preferably, connecting rod water cavity bar wall is designed to tubular shape.
Dust suction bar is provided with dust suction bar water cavity bar wall, dust suction bar outlet chamber bar wall, dust suction bar inlet chamber bar wall, dust suction bar water cavity, high pressure admission chamber, high pressure outlet air chamber, air suction opening, steady pin; Dust suction bar water cavity is at dust suction bar water cavity bar pars intramuralis, and high pressure admission chamber is arranged between dust suction bar water cavity bar wall and inlet chamber bar wall, and high pressure outlet air chamber is arranged between inlet chamber bar wall and outlet chamber bar wall; The dust suction bar water cavity bar wall connection male that dust suction bar water cavity bar wall two ends are provided with coupling is mutually connected female with dust suction bar water cavity bar wall, the dust suction bar outlet chamber bar wall connection male that dust suction bar outlet chamber bar wall two ends are provided with mutual coupling is connected female with dust suction bar outlet chamber bar wall, and the dust suction bar inlet chamber bar wall connection male that dust suction bar inlet chamber bar wall two ends are provided with coupling is mutually connected female with dust suction bar inlet chamber bar wall; Air suction opening is arranged on dust suction bar outlet chamber bar wall, and preferably, air suction opening is inclined on dust suction bar outlet chamber bar wall, and what its axis direction was connected male with itself and dust suction bar outlet chamber is wired to acute angle, and described sharp angle is 30 °; Steady pin is used for fixing each bar wall, and each bar wall relative position is fixed; Preferably, dust suction bar water cavity bar wall is designed to tubular shape; Preferably, dust suction bar inlet chamber bar wall is designed to tubular shape.
Drill bit connection female is connected male with connecting rod and matches; Connecting rod water cavity connection female is connected male with dust suction bar water cavity and matches, and connecting rod air cavity connection female is connected male with dust suction bar outlet chamber and matches.
Owing to adopting above technical scheme, Multifunctional drill rod provided by the utility model is provided with high pressure spray discharge orifice, water cavity, air suction opening and turnover air cavity, it can not only realize boring the switching of cutting function, can also collect dust and gas executing and bore while, effectively solve the frequent drilling rod switching difference in functionality in drilling rod work progress and cause inefficiency and execute the problem getting out existing gas exceeding limit and dust harzard.Its operating principle is: in water cavity during hydraulic fluid maintenance normal pressure, drilling rod is holed; When applying high pressure to hydraulic fluid in water cavity, liquid sprays at a high speed from high pressure spray discharge orifice and cuts coal seam; While boring or cutting coal seam, pass into gases at high pressure to high pressure admission chamber, gases at high pressure flow out from high pressure outlet air chamber, and form airflow circulating, dust and gas suck this airflow circulating system by air suction opening thus is excluded.
Accompanying drawing explanation
Fig. 1 is overall longitudinal sectional view of the present utility model;
Fig. 2 bores the longitudinal sectional view cutting head;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the longitudinal sectional view of connecting rod;
Fig. 5 is the B-B sectional view of Fig. 4;
Fig. 6 is the longitudinal sectional view of dust suction bar;
Fig. 7 is the C-C sectional view of Fig. 6.
1, brill cuts head; 1.1, drill bit; 1.2, drill bit shaft main body; 1.3, drill bit water cavity; 1.4, drill bit connects female; 1.5, high pressure spray discharge orifice; 1.6, water cavity sealing of hole plug; 1.7 change cord; 2, connecting rod; 2.1, connecting rod water cavity bar wall; 2.2, connecting rod air cavity bar wall; 2.3, connecting rod water cavity; 2.4, high pressure air cavity; 2.5, connecting rod connects male; 2.6, connecting rod connects female; 2.6.1 connecting rod water cavity connects female; 2.6.2 connecting rod air cavity connects female; 3, dust suction bar; 3.1, dust suction bar water cavity bar wall; 3.2, dust suction bar outlet chamber bar wall; 3.12, dust suction bar inlet chamber bar wall; 3.3, dust suction bar water cavity; 3.4, high pressure admission chamber; 3.5, high pressure outlet air chamber; 3.6, air suction opening; 3.7, dust suction bar connects male; 3.7.1, dust suction bar water cavity connects male; 3.7.12, dust suction bar inlet chamber connects male; 3.7.2, dust suction bar outlet chamber connects male; 3.8, dust suction bar connects female; 3.8.1, dust suction bar water cavity connects female; 3.8.12, dust suction bar inlet chamber connects female; 3.8.2, dust suction bar outlet chamber connects female; 4, steady pin.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, a kind of mine high efficiency drilling rod, is provided with brill and cuts 1, connecting rod 2, dust suction bar 3, and connecting rod 2 one end connects brill and cuts 1, and the other end connects dust suction bar 3.
Brill cut 1 comprise drill bit 1.1, drill bit shaft main body 1.2, drill bit water cavity 1.3, drill bit connect female 1.4, high pressure spray discharge orifice 1.5, water cavity sealing of hole plug 1.6 and change cord 1.7; Drill bit 1.1 is connected the two ends that female 1.4 is separately positioned on drill bit shaft main body 1.2 with drill bit, drill bit water cavity 1.3 is arranged on the axial centre position of drill bit shaft main body 1.2 and runs through drill bit shaft main body 1.2, its one end is conical through-hole, high pressure spray discharge orifice 1.5 to be arranged in drill bit shaft main body 1.2 and to run through drill bit shaft main body 1.2, water cavity sealing of hole plug 1.6 is arranged in water cavity, the conical through-hole of its shape and drill bit water cavity 1.3 matches, its section maximum gauge is less than the diameter of drill bit water cavity 1.3, changes cord 1.7 and is connected with water cavity sealing of hole plug 1.6.In the present embodiment, high pressure spray discharge orifice 1.5 is the inside trumpet degree of lip-rounding.
In work progress, when needs vertical drilling, the hydraulic fluid in drill bit water cavity 1.3 keeps normal pressure, and the conical through-hole of drill bit water cavity 1.3 does not block by water cavity sealing of hole plug 1.6, and hydraulic fluid flows out from conical through-hole, and drilling rod carries out vertical drilling; When needs level isolates coal seam, drilling rod stops boring, then high pressure is applied to the hydraulic fluid in water cavity, water cavity sealing of hole plug 1.6 is subject to the compressing of highly pressurised liquid by the bellmouth shutoff of drill bit water cavity 1.3, and hydraulic fluid sputters in high pressure spray discharge orifice 1.5, completes isolating coal seam, border measuring and calculating factually, liquid pressure, when 8-10Pa, can reach expection cutting effect, namely by realizing the adjustment of hydraulic fluid pressure in water cavity holing and the switching of isolating two kinds of mode of operations.Because water cavity sealing of hole plug 1.6 is often subject to high pressure compressing, its sealing effectiveness is comparatively vulnerable to damage, and then cutting function can not be realized, now change water cavity sealing of hole plug 1.6 by changing cord 1.7, avoid and whole drilling rod is exited boring replacing water cavity sealing of hole plug 1.6 and delays the plenty of time, also improve operating efficiency.
As shown in Figure 4, connecting rod 2 be provided with connecting rod water cavity bar wall 2.1, connecting rod air cavity bar wall 2.2, connecting rod water cavity 2.3, high pressure air cavity 2.4, connecting rod connect male 2.5 be connected female 2.6 with connecting rod; Connecting rod water cavity 2.3 is inner at connecting rod water cavity bar wall 2.1, and high pressure air cavity 2.4 is between connecting rod water cavity bar wall 2.1 and connecting rod air cavity bar wall 2.2; Connecting rod connects male 2.5 and is connected the two ends that female 2.6 is separately positioned on connecting rod 2 with connecting rod, and connecting rod connects female 2.6 and comprises the connecting rod water cavity connection female 2.6.1 that is arranged at connecting rod water cavity bar wall 2.1 one end and be arranged at the connecting rod air cavity of connecting rod air cavity bar wall 2.2 with one end and be connected female 2.6.2; Preferably, connecting rod water cavity bar wall 2.1 is designed to tubular shape, to reduce its air resistance suffered when holing.
Connecting rod 2 cuts 1 and a dust suction bar 3 for connecting brill, to be connected after female 1.4 connects with drill bit when connecting rod connects male 2.5, connecting rod water cavity 2.3 is through with drill bit water cavity 1.3, and connecting rod water cavity 2.3 flows to drill bit water cavity 1.3 for the hydraulic fluid transported by dust suction bar 3; Meanwhile, the high pressure admission chamber 3.4 of dust suction bar 3 is communicated with high pressure outlet air chamber 3.5, to form airflow circulating by high pressure air cavity 2.4.
As shown in Figure 6, dust suction bar 3 is provided with dust suction bar water cavity bar wall 3.1, dust suction bar outlet chamber bar wall 3.2, dust suction bar inlet chamber bar wall 3.12, dust suction bar water cavity 3.3, high pressure admission chamber 3.4, high pressure outlet air chamber 3.5, air suction opening 3.6, steady pin 4, dust suction bar water cavity 3.3 is inner at dust suction bar water cavity bar wall 3.1, and high pressure admission chamber 3.4 is arranged between dust suction bar water cavity bar wall 3.1 and inlet chamber bar wall 3.12, and high pressure outlet air chamber 3.5 is arranged between inlet chamber bar wall 3.12 and outlet chamber bar wall 3.2, the dust suction bar water cavity bar wall connection male 3.7.1 that dust suction bar water cavity bar wall 3.1 two ends are provided with coupling is mutually connected female 3.8.1 with dust suction bar water cavity bar wall, the dust suction bar outlet chamber bar wall connection male 3.7.2 that dust suction bar outlet chamber bar wall 3.2 two ends are provided with coupling is mutually connected female 3.8.2 with dust suction bar outlet chamber bar wall, the dust suction bar inlet chamber bar wall connection male 3.7.12 that dust suction bar inlet chamber bar wall 3.12 two ends are provided with coupling is mutually connected female 3.8.12 with dust suction bar inlet chamber bar wall, because the connection male being arranged at dust suction bar 3 two ends is mated with corresponding connection female, the length of whole drilling rod can be controlled by the quantity increasing dust suction bar 3, air suction opening 3.6 is arranged on dust suction bar outlet chamber bar wall 3.2, preferably, air suction opening 3.6 is inclined on dust suction bar outlet chamber bar wall 3.2, what its axis direction was connected male 3.7.2 with itself and dust suction bar outlet chamber is wired to acute angle, further, this acute angle is 30 degree, to strengthen its dust suction inspiratory effects, steady pin 4, for fixing each bar wall, makes each bar wall relative position fix, preferably, dust suction bar water cavity bar wall 3.1 is designed to tubular shape, and dust suction bar inlet chamber bar wall 3.12 is designed to tubular shape, to reduce the air resistance in its boring procedure.
Dust suction bar connects male 3.7 and is connected with connecting rod after female 2.6 connects, and dust suction bar water cavity 3.3 is communicated with connecting rod water cavity 2.3, and the hydraulic fluid in dust suction bar water cavity 3.3 is delivered to connecting rod water cavity 2.3; Simultaneously, high pressure admission chamber 3.4 is communicated with by high pressure air cavity 2.4 with high pressure outlet air chamber 3.5, gases at high pressure are passed into from high pressure admission chamber 3.4, after gases at high pressure arrive high pressure air cavity 2.4, return from high pressure outlet air chamber 3.5, form airflow circulating, because high velocity air air pressure is low, dust and gas are entered this airflow circulating by air suction opening 3.6 by absorption, thus are excluded.
Drill bit connection female 1.4 is connected male 2.5 and matches with connecting rod; Connecting rod water cavity connection female 2.6.1 is connected male 3.7.1 with dust suction bar water cavity and matches, connecting rod air cavity connects female 2.6.2 and is connected male 3.7.2 with dust suction bar outlet chamber and matches, brill cuts 1, connecting rod 2 and dust suction bar 3 by these connection males of mutually mating be connected female and connect between two.
Operating principle of the present utility model is: brill cuts after head is connected with dust suction bar by connecting rod, and the water cavity designed in three's axle inside is communicated with, and inlet chamber is communicated with by high pressure air cavity with outlet chamber.In whole work progress, gases at high pressure are passed into high pressure admission chamber, after gases at high pressure arrive high pressure air cavity, return from high pressure outlet air chamber, form airflow circulating, because high velocity air air pressure is low, dust and gas are entered this airflow circulating by air suction opening by absorption, thus are excluded; To holing and isolating the switching of two kinds of mode of operations then by realizing the adjustment of hydraulic fluid pressure in water cavity: when needs vertical drilling, hydraulic fluid in drill bit water cavity 1.3 keeps normal pressure, now the bellmouth of drill bit water cavity 1.3 does not block by water cavity sealing of hole plug 1.6, hydraulic fluid flows out from bellmouth, and drilling rod carries out vertical drilling; When needs level isolates coal seam, drilling rod stops boring, then high pressure is applied to the hydraulic fluid in water cavity, water cavity sealing of hole plug 1.6 is subject to the compressing of highly pressurised liquid by the bellmouth shutoff of drill bit water cavity 1.3, hydraulic fluid sputters in high pressure spray discharge orifice 1.5, completes isolating coal seam, border measuring and calculating factually, liquid pressure, when 8-10Pa, can reach expection cutting effect; Simultaneously, because water cavity sealing of hole plug 1.6 is often subject to high pressure compressing, its sealing effectiveness is comparatively vulnerable to damage, and then cutting function can not be realized, now change water cavity sealing of hole plug 1.6 by changing cord 1.7, avoid and whole drilling rod is exited boring replacing water cavity sealing of hole plug 1.6 and delays the plenty of time, also improve operating efficiency.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present utility model, should be understood to that protection domain of the present utility model is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from the utility model essence according to these technology enlightenment disclosed in the utility model, and these distortion and combination are still in protection domain of the present utility model.
Claims (7)
1. a mine high efficiency drilling rod, it is characterized in that: be provided with brill and cut head (1), connecting rod (2), dust suction bar (3), described connecting rod (2) one end connects brill and cuts head (1), and the other end connects dust suction bar (3);
Described brill cuts head (1) and comprises drill bit (1.1), drill bit shaft main body (1.2), drill bit water cavity (1.3), drill bit connection female (1.4), high pressure spray discharge orifice (1.5), water cavity sealing of hole plug (1.6) and change cord (1.7);
Described drill bit (1.1) is connected the two ends that female (1.4) is separately positioned on drill bit shaft main body (1.2) with drill bit, drill bit water cavity (1.3) is arranged on the axial centre position of drill bit shaft main body (1.2) and runs through drill bit shaft main body (1.2), its one end is conical through-hole, the drill bit shaft main body (1.2) that is arranged on high pressure spray discharge orifice (1.5) goes up and runs through drill bit shaft main body (1.2), water cavity sealing of hole plug (1.6) is arranged in water cavity, the conical through-hole of its shape and drill bit water cavity (1.3) matches, its section maximum gauge is less than the diameter of drill bit water cavity (1.3), change cord (1.7) to be connected with water cavity sealing of hole plug (1.6),
Described connecting rod (2) comprise connecting rod water cavity bar wall (2.1), connecting rod air cavity bar wall (2.2), connecting rod connect male (2.5) be connected female (2.6) with connecting rod;
Described connecting rod water cavity bar wall (2.1) inside is connecting rod water cavity (2.3), be high pressure air cavity (2.4) between connecting rod water cavity bar wall (2.1) and connecting rod air cavity bar wall (2.2), connecting rod connects male (2.5) and is connected the two ends that female (2.6) is separately positioned on connecting rod (2) with connecting rod, connecting rod connects female (2.6) and comprises the connecting rod water cavity being arranged at connecting rod water cavity bar wall (2.1) one end and connect female (2.6.1) and be arranged at the connecting rod air cavity of connecting rod air cavity bar wall (2.2) with one end and be connected female (2.6.2),
Described dust suction bar (3) comprises dust suction bar water cavity bar wall (3.1), dust suction bar outlet chamber bar wall (3.2), dust suction bar inlet chamber bar wall (3.12), air suction opening (3.6) and steady pin (4);
Described dust suction bar water cavity bar wall (3.1) inside is dust suction bar water cavity (3.3), be high pressure admission chamber (3.4) between dust suction bar water cavity bar wall (3.1) and inlet chamber bar wall (3.12), be high pressure outlet air chamber (3.5) between inlet chamber bar wall (3.12) and outlet chamber bar wall (3.2), dust suction bar water cavity bar wall connection male (3.7.1) that described dust suction bar water cavity bar wall (3.1) two ends are provided with coupling is mutually connected female (3.8.1) with dust suction bar water cavity bar wall, dust suction bar outlet chamber bar wall connection male (3.7.2) that described dust suction bar outlet chamber bar wall (3.2) two ends are provided with coupling is mutually connected female (3.8.2) with dust suction bar outlet chamber bar wall, dust suction bar inlet chamber bar wall connection male (3.7.12) that described dust suction bar inlet chamber bar wall (3.12) two ends are provided with coupling is mutually connected female (3.8.12) with dust suction bar inlet chamber bar wall, air suction opening (3.6) is arranged on dust suction bar outlet chamber bar wall (3.2), steady pin (4) is arranged between each bar wall, for fixing each bar wall, each bar wall relative position is fixed,
Described drill bit connection female (1.4) is connected male (2.5) and matches with described connecting rod; Described connecting rod water cavity connection female (2.6.1) is connected male (3.7.1) with described dust suction bar water cavity and matches, and described connecting rod air cavity connection female (2.6.2) is connected male (3.7.2) with described dust suction bar outlet chamber and matches.
2. a kind of mine high efficiency drilling rod according to claim 1, is characterized in that: described high pressure spray discharge orifice (1.5) is the inside trumpet degree of lip-rounding.
3. a kind of mine high efficiency drilling rod according to claim 1, it is characterized in that: described air suction opening (3.6) is obliquely installed on dust suction bar outlet chamber bar wall (3.2), what its axis direction was connected male (3.7.2) with itself and dust suction bar outlet chamber is wired to acute angle.
4. a kind of mine high efficiency drilling rod according to claim 3, is characterized in that: described sharp angle is 30 °.
5. a kind of mine high efficiency drilling rod according to claim 1, is characterized in that: described connecting rod water cavity bar wall (2.1) is designed to tubular shape.
6. a kind of mine high efficiency drilling rod according to claim 1, is characterized in that: described dust suction bar water cavity bar wall (3.1) is designed to tubular shape.
7. a kind of mine high efficiency drilling rod according to claim 1, is characterized in that: described dust suction bar inlet chamber bar wall (3.12) is designed to tubular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520383159.6U CN204851080U (en) | 2015-06-04 | 2015-06-04 | Mine high efficiency drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520383159.6U CN204851080U (en) | 2015-06-04 | 2015-06-04 | Mine high efficiency drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851080U true CN204851080U (en) | 2015-12-09 |
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ID=54741638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520383159.6U Expired - Fee Related CN204851080U (en) | 2015-06-04 | 2015-06-04 | Mine high efficiency drilling rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN204851080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121544A (en) * | 2016-08-15 | 2016-11-16 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of taper thread grinding one-piece drill bit for detecting earth stress |
| CN106194041A (en) * | 2014-12-02 | 2016-12-07 | 成都宸鸿科技有限公司 | A kind of mine high efficiency drilling rod |
-
2015
- 2015-06-04 CN CN201520383159.6U patent/CN204851080U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194041A (en) * | 2014-12-02 | 2016-12-07 | 成都宸鸿科技有限公司 | A kind of mine high efficiency drilling rod |
| CN106121544A (en) * | 2016-08-15 | 2016-11-16 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of taper thread grinding one-piece drill bit for detecting earth stress |
| CN106121544B (en) * | 2016-08-15 | 2019-08-02 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of taper thread grinding one-piece drill bit for detecting earth stress |
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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: 20151209 Termination date: 20160604 |