CN103591862B - Blind big gun handling implement and method - Google Patents
Blind big gun handling implement and method Download PDFInfo
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- CN103591862B CN103591862B CN201210539727.8A CN201210539727A CN103591862B CN 103591862 B CN103591862 B CN 103591862B CN 201210539727 A CN201210539727 A CN 201210539727A CN 103591862 B CN103591862 B CN 103591862B
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- powder column
- junction surface
- big gun
- blind big
- handling implement
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Abstract
The invention discloses a kind of blind big gun handling implement and method, wherein, this blind big gun handling implement comprises: for excavating the soil of preset distance above from ground to powder column first excavates part (10); Part (20) is excavated from the top of powder column to second of the foreign material of preset distance above it for removing; For the moistening device (30) of the moistening top from powder column to the soil in the scope of distance predetermined above it; Part (40) is excavated for the 3rd of loose moistening earth; And for clamping powder column and powder column being promoted the powder column extracting piece of taking out.Part, second excavates part, moistening device, the 3rd excavates part and powder column extracting piece to use first to excavate successively, can take out powder column safely, efficiently.In addition, instrument described in manual operation can being used, without the need to using more engineering machinery, reducing processing cost.
Description
Technical field
The present invention relates to blind big gun process, particularly, relate to a kind of blind big gun handling implement and method.
Background technology
Along with science and technology and geophysical prospecting technology progress, Exploration Domain is progressively magnified, and exploration scale is increasing, and monolithic excites, the huge increasing at double of acceptance point quantity.General monolithic three dimensional exploration shot hole number reaches several ten thousand, even more.Cause the blind big gun quantity produced in work progress also with increasing proportion, in prior art, adopt the blind big gun processing modes such as excavator deep-cuts, geophysical drilling machine well-flushing, security risk is comparatively large, and treatment effeciency also can not meet construction requirement far away.In addition, these processing modes need to use more engineering machinery, and cost is higher.
Summary of the invention
The object of this invention is to provide a kind of efficiency higher and lower-cost blind big gun handling implement and method.
To achieve these goals, the invention provides a kind of blind big gun handling implement, wherein, this blind big gun handling implement comprises: for excavating the soil of preset distance above from ground to powder column first excavates part; Part is excavated from the top of described powder column to second of the foreign material of preset distance above it for removing; For the moistening device of the moistening top from described powder column to the soil in the scope of distance predetermined above it; Part is excavated for the 3rd of loose moistening earth; And for clamping described powder column and described powder column being promoted the powder column extracting piece of taking out.
The present invention also provides a kind of blind big gun processing method, and the method comprises: the soil excavating preset distance above from ground to powder column; Remove the foreign material from the top of described powder column to preset distance above it; The moistening top from described powder column is to the soil in the scope of distance predetermined above it; Loose moistening earth; And clamp described powder column and described powder column is promoted taking-up.
By technique scheme, part, second excavates part, moistening device, the 3rd excavates part and powder column extracting piece to use first to excavate successively, can take out powder column safely, efficiently.In addition, instrument described in manual operation can being used, without the need to using more engineering machinery, reducing processing cost.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of embodiment that the first excavation part of the present invention is described;
Fig. 2 is the structural representation of a kind of embodiment that the second excavation part of the present invention is described;
Fig. 3 is the structural representation of a kind of embodiment that moistening device of the present invention is described;
Fig. 4 is the structural representation of a kind of embodiment that the 3rd excavation part of the present invention is described;
Fig. 5 is the structural representation of a kind of embodiment that powder column extracting piece of the present invention is described;
Fig. 6 is the structural representation of the another kind of embodiment that powder column extracting piece of the present invention is described.
Description of reference numerals
Excavate part 11: the first junction surface 12 at 10: the first: visit shovel 13: dowel
Excavate part at 20: the second
21: the second junction surface 22: the first straight profiled bat 23: the first barbs
30: moistening device
31: columnar body 32: feed pipe 33: connecting portion
40: the three excavate part 41: the three junction surface 42: the second straight profiled bat 43: revolve and dig block
50: internal tooth grabs ring
51: the four junction surfaces 52: connecting rod 53: cylindrical portion 54: the second barb
60: dihedral fork 61: the five junction surface 62: the three straight profiled bat 63: the three barbs
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself.
According to an aspect of the present invention, provide a kind of blind big gun handling implement, wherein, this blind big gun handling implement comprises: for excavating the soil of preset distance above from ground to powder column first excavates part 10; Part 20 is excavated from the top of described powder column to second of the foreign material of preset distance above it for removing; For the moistening device 30 of the moistening top from described powder column to the soil in the scope of distance predetermined above it; Part 40 is excavated for the 3rd of loose moistening earth; And for clamping described powder column and described powder column being promoted the powder column extracting piece of taking out.
According to a further aspect in the invention, provide a kind of blind big gun processing method, the method comprises: the soil excavating preset distance above from ground to powder column; Remove the foreign material from the top of described powder column to preset distance above it; The moistening top from described powder column is to the soil in the scope of distance predetermined above it; Loose moistening earth; And clamp described powder column and described powder column is promoted taking-up.
Wherein, described predetermined distance can be 2-4 rice.
Preferably, blind big gun handling implement of the present invention can be used to implement described method.Particularly, the first excavation part 10 can be used to excavate the soil of preset distance above from ground to powder column.Then use second to excavate part 20 and remove foreign material from the top of described powder column to preset distance above it, the straw of landfill, not easily loose granule and embedding live wire etc. when wherein said foreign material comprise such as embedding powder column.Then use the moistening top from described powder column of moistening device 30 to the soil in the scope of distance predetermined above it, to loosen moistening earth next to use the 3rd to excavate part 40.Finally, powder column extracting piece can be used to clamp described powder column and described powder column is promoted taking-up from loose earth.Each step of said method is manual operation, to guarantee precision and the safety of operation.
Wherein, because powder column is embedded in the distance of underground 18-30 rice, described blind big gun handling implement preferably includes drilling rod, and the described first at least one excavated in part 10, second excavation part 20, the 3rd excavation part 40 and powder column extracting piece can be engaged with described drilling rod, to be operated by drilling rod power transmission.
It is in addition, above-mentioned that the first excavation part 10, second mentioned excavates part 20, the 3rd excavation part 40, moistening device 30 and powder column extracting piece can adopt various suitable structure, as long as can realize corresponding function.
In the preferred embodiment of the present invention, as shown in Figure 1, described first excavates part 10 comprises the first junction surface 11 and the spy shovel 12 being connected to this first junction surface 11, and described first junction surface 11 can engage with described drilling rod.Wherein, the first junction surface 11 can be had screw connection structure and is connected to the shank digging shovel 12 by dowel 13.Thus, first excavates part 10 can be connected to drilling rod by the first junction surface 11, carries out degree of depth excavation.Be understandable that, when excavating more shallow position, manually can grasp the first junction surface 11 and excavating.Digging shovel 12 can be the various structure with spade excavation portion suitably, such as can for visiting shovel (i.e. Luoyang Spade).
In addition, as shown in Figure 2, described second excavates part 20 can comprise the second junction surface 21, first straight profiled bat 22 and the first barb 23, described second junction surface 21 can be excavated part 10 with described drilling rod or described first and be engaged, described first straight profiled bat 22 is from the bottom at described second junction surface 21 to downward-extension, described first barb 23 is fixed on the bottom of described first straight profiled bat 22, and the bearing of trend of described first barb 23 and the bearing of trend of described first straight profiled bat 22 are the angle of 30-45 degree.Wherein, the second junction surface 21 also can have screw connection structure, to be installed to drilling rod or the first junction surface 11.Thus, part 10 power transmission can be excavated by drilling rod or first, be hooked by the first barb 23 and get foreign material.Understandable, when second excavate part 20 be connected to the first excavation part 10 time, first excavates part 10 is inverted, and operating personnel can hold and dig shovel 12 and operate.In addition, part 20 can be excavated by second and hook and get foreign material, dig on one side by the first excavation part 10 soil that shovel 12 takes surrounding.
In addition, preferably, described moistening device 30 can comprise water pump, columnar body 31 and feed pipe 32, and described water pump is supplied water by the inner chamber of described feed pipe 32 to described columnar body 31.Thus, water flow to its end by the inner chamber of columnar body 31, and is ejected in soil, makes ground moistening.More preferably, as shown in Figure 3, described feed pipe 32 is connected to described columnar body 31, and described columnar body 31 end has water jet and can excavate part 40 and engage with the described 3rd.Particularly, the end of columnar body 31 can be provided with connecting portion 33, to excavate part 40 engage with the 3rd.Wherein, connecting portion 33 also can have screw connection structure.In addition, the cross section of connecting portion 33 can be less than the internal diameter of columnar body 31, thus water can flow out from the space between connecting portion 33 and columnar body 31.
In addition, as shown in Figure 4, described 3rd excavates part 40 can comprise the 3rd junction surface 41, second straight profiled bat 42 and revolve and dig block 43, described 3rd junction surface 41 can engage with described drilling rod or described moistening device 30, described second straight profiled bat 42 is multiple, one end of each described second straight profiled bat 42 is connected to the bottom at described 3rd junction surface 41, revolves and dig block 43 described in the other end is connected to, each described second straight profiled bat 42 with identical angle from described 3rd junction surface 41 towards tilted extension.Wherein, the 3rd junction surface 41 can have screw connection structure, so that the connecting portion 33 of drilling rod or moistening device 30 engages.During use, the columnar body 31 of drilling rod or moistening device 30 can be rotated, make to revolve and dig block 43 and rotate, thus dig block 43 and the second straight profiled bat 42 to loosen moistening earth by revolving.Be connected to moistening device 30 excavating part 40 by the 3rd, can pass through the moistening earth of moistening device 30, utilize on one side the 3rd excavation part 40 to loosen earth simultaneously.
In addition, described powder column extracting piece comprises internal tooth and grabs ring 50 and/or angle fork-shaped hook 60, according to different situations (such as powder column is upright or tilt embedding), can select dissimilar powder column extracting piece.
As shown in Figure 5, described internal tooth grabs ring 50 can comprise the 4th junction surface 51, connecting rod 52, cylindrical portion 53 and the second barb 54, described 4th junction surface 51 can be excavated part 10 with described drilling rod or described first and be engaged, described connecting rod 52 connects described 4th junction surface 51 and described cylindrical portion 53, and described second barb 54 is arranged on the inner side of described cylindrical portion 53.Wherein, the 4th junction surface 51 can have screw connection structure, to be connected to drilling rod or the first junction surface 11.The internal diameter of cylindrical portion 53 should be a bit larger tham the bore at powder column top.During use, can rotate and press down drilling rod or first and excavate part 10, make internal tooth grab ring 50 and move down along the top outer of powder column, and the tube wall of powder column is pressed into inside the second barb 54 and clamps.Then, upwards promote drilling rod or first to excavate part 10, second barb 54 and sting tight powder column and make powder column grab ring 50 with internal tooth and promote taking-up.
Wherein, when internal tooth grab ring 50 be connected to the first excavation part 10, rotate first and excavate part 10, ring 50 can be grabbed by internal tooth and clamp powder column, on one side by dig shovel 12 excavate around soil, be conducive to lifting powder column.
Preferably, described connecting rod 52 can be that multiple and along described cylindrical portion 53 circumference is arranged, thus makes cylindrical portion 53 firmly be connected to the 4th junction surface 51.In addition, described 3rd barb 54 can be that multiple and along described cylindrical portion 53 inner circumferential is uniform, and the described bearing of trend of the 3rd barb 54 and the axis of described cylindrical portion 53 are the angle of 20-30 degree, thus can apply uniform clamping force to the tube wall of powder column.
In addition, as shown in Figure 6, described angle fork-shaped hook 60 can comprise the 5th junction surface 61, the 3rd straight profiled bat 62 and the 3rd barb 63, described 5th junction surface 61 can be excavated part 10 with described drilling rod or described first and be engaged, described 3rd straight profiled bat 62 is multiple and from the bottom at described 5th junction surface 61 to downward-extension, described 3rd barb 63 is arranged on the bottom of described 3rd straight profiled bat 62, and the bearing of trend of described 3rd barb 63 and the bearing of trend of described 3rd straight profiled bat 62 are the angle of 30-45 degree.Wherein, the 5th junction surface 61 can have screw connection structure, to be connected to drilling rod or the first junction surface 11.In addition, the 3rd straight profiled bat 62 can extend towards outer incline downwards from the 5th junction surface 61, and the distance between the 3rd barb 63 on any two the 3rd straight profiled bats 62 should be less than the caliber of the tube wall at powder column top.During use, can rotate and press down drilling rod or first and excavate part 10, angle fork-shaped hook 60 is moved down along the top outer of powder column, and the top of powder column is pressed into inside the 3rd barb 63 and clamps.Then, upwards lifting drilling rod or the first excavation part the 10, three barb 63 are stung tight powder column and make powder column promote taking-up with angle fork-shaped hook 60.
Wherein, powder column bury underground comparatively loose or uprightly bury underground time, only excavate and expose powder column top and angle fork-shaped hook 60 can be utilized to clamp powder column top powder column is extracted.When powder column is buried consolidation underground or tilted a little, need to excavate to exposing powder column comparatively many parts utilize internal tooth to grab ring 50 to clamp powder column tube wall and extracted by powder column.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. a blind big gun handling implement, is characterized in that, this blind big gun handling implement comprises:
For excavating the soil of preset distance above from ground to powder column first excavates part (10);
Part (20) is excavated from the top of described powder column to second of the foreign material of preset distance above it for removing;
For the moistening device (30) of the moistening top from described powder column to the soil in the scope of distance predetermined above it;
Part (40) is excavated for the 3rd of loose moistening earth; And
For clamping described powder column and described powder column being promoted the powder column extracting piece of taking out.
2. blind big gun handling implement according to claim 1, wherein, described blind big gun handling implement comprises drilling rod, and the described first at least one excavated in part (10), the second excavation part (20), the 3rd excavation part (40) and powder column extracting piece can engage with described drilling rod.
3. blind big gun handling implement according to claim 2, wherein, described first excavation part (10) comprises the first junction surface (11) and is connected to spy shovel (12) at this first junction surface (11), and described first junction surface (11) can engage with described drilling rod.
4. blind big gun handling implement according to claim 2, wherein, described second excavates part (20) comprises the second junction surface (21), first straight profiled bat (22) and the first barb (23), described second junction surface (21) can be excavated part (10) with described drilling rod or described first and be engaged, described first straight profiled bat (22) is from the bottom of described second junction surface (21) to downward-extension, described first barb (23) is fixed on the bottom of described first straight profiled bat (22), the bearing of trend of described first barb (23) and the bearing of trend of described first straight profiled bat (22) are the angle of 30-45 degree.
5. blind big gun handling implement according to claim 2, wherein, described moistening device (30) comprises water pump, columnar body (31) and feed pipe (32), and described water pump is supplied water by the inner chamber of described feed pipe (32) to described columnar body (31).
6. blind big gun handling implement according to claim 5, wherein, described feed pipe (32) is connected to described columnar body (31), and described columnar body (31) end has water jet and can excavate part (40) and engage with the described 3rd.
7. blind big gun handling implement according to claim 2, wherein, described 3rd excavates part (40) comprises the 3rd junction surface (41), second straight profiled bat (42) and revolve and dig block (43), described 3rd junction surface (41) can engage with described drilling rod or described moistening device (30), described second straight profiled bat (42) is for multiple, one end of each described second straight profiled bat (42) is connected to the bottom at described 3rd junction surface (41), revolve described in the other end is connected to and dig block (43), each described second straight profiled bat (42) with identical angle from described 3rd junction surface (41) towards tilted extension.
8. blind big gun handling implement according to claim 2, wherein, described powder column extracting piece comprises internal tooth and grabs ring (50) and/or angle fork-shaped hook (60), described internal tooth is grabbed ring (50) and is comprised the 4th junction surface (51), connecting rod (52), cylindrical portion (53) and the second barb (54), described 4th junction surface (51) can be excavated part (10) with described drilling rod or described first and be engaged, described connecting rod (52) connects described 4th junction surface (51) and described cylindrical portion (53), and described second barb (54) is arranged on the inner side of described cylindrical portion (53); Described angle fork-shaped hook (60) comprises the 5th junction surface (61), the 3rd straight profiled bat (62) and the 3rd barb (63), described 5th junction surface (61) can be excavated part (10) with described drilling rod or described first and be engaged, described 3rd straight profiled bat (62) is for multiple and from the bottom at described 5th junction surface (61) to downward-extension, described 3rd barb (63) is arranged on the bottom of described 3rd straight profiled bat (62), and the bearing of trend of described 3rd barb (63) and the bearing of trend of described 3rd straight profiled bat (62) are the angle of 30-45 degree.
9. blind big gun handling implement according to claim 8, wherein, described connecting rod (52) is arranged for multiple and along described cylindrical portion (53) circumference, described 3rd barb (54) for multiple and along described cylindrical portion (53) inner circumferential uniform, the described bearing of trend of the 3rd barb (54) and the axis of described cylindrical portion (53) are the angle of 20-30 degree.
10. a blind big gun processing method, the method comprises:
Excavate the soil of preset distance above from ground to powder column;
Remove the foreign material from the top of described powder column to preset distance above it;
The moistening top from described powder column is to the soil in the scope of distance predetermined above it;
Loose moistening earth; And
Clamp described powder column and described powder column is promoted and take out.
11. blind big gun processing methods according to claim 10, wherein, described predetermined distance is 2-4 rice.
12. blind big gun processing methods according to claim 10 or 11, wherein, use and implement described method according to the blind big gun handling implement in claim 1-9 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210539727.8A CN103591862B (en) | 2012-12-13 | 2012-12-13 | Blind big gun handling implement and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210539727.8A CN103591862B (en) | 2012-12-13 | 2012-12-13 | Blind big gun handling implement and method |
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| Publication Number | Publication Date |
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| CN103591862A CN103591862A (en) | 2014-02-19 |
| CN103591862B true CN103591862B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210539727.8A Active CN103591862B (en) | 2012-12-13 | 2012-12-13 | Blind big gun handling implement and method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109269371B (en) * | 2018-12-05 | 2020-12-25 | 贵州大学 | Processing tool for blind cannon with flat hole and using method of processing tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5431073A (en) * | 1994-02-28 | 1995-07-11 | Gregory; Dennis | Cartridge casing extractor |
| CN201714294U (en) * | 2010-04-10 | 2011-01-19 | 葛洲坝集团第二工程有限公司 | Double-action puncher |
| CN202506639U (en) * | 2012-03-15 | 2012-10-31 | 中铁十一局集团有限公司 | High-pressure flushing pipe for unexploded dynamite disposal |
| CN203231705U (en) * | 2012-12-13 | 2013-10-09 | 中国石油化工股份有限公司 | Unexploded dynamite processing tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090874A1 (en) * | 2001-05-09 | 2002-11-14 | Rocktek Limited | Cartridge |
-
2012
- 2012-12-13 CN CN201210539727.8A patent/CN103591862B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5431073A (en) * | 1994-02-28 | 1995-07-11 | Gregory; Dennis | Cartridge casing extractor |
| CN201714294U (en) * | 2010-04-10 | 2011-01-19 | 葛洲坝集团第二工程有限公司 | Double-action puncher |
| CN202506639U (en) * | 2012-03-15 | 2012-10-31 | 中铁十一局集团有限公司 | High-pressure flushing pipe for unexploded dynamite disposal |
| CN203231705U (en) * | 2012-12-13 | 2013-10-09 | 中国石油化工股份有限公司 | Unexploded dynamite processing tool |
Non-Patent Citations (4)
| Title |
|---|
| 一次硐室盲炮的原因分析及处理;方明山;《爆破》;20001231;第17卷(第04期);109-111 * |
| 岩石地基爆破技术的应用与施工;张志华等;《建筑施工》;20050731;第27卷(第07期);10-12 * |
| 爆破安全法规标准讲析;张其中等;《工业安全与防尘》;19270511(第01期);38-42 * |
| 美国矿山盲炮事故原因的分析;R.弗莱彻等;《国外采矿技术快报》;19851231(第12期);27-28 * |
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