CN101305156B - Earth auger - Google Patents
Earth auger Download PDFInfo
- Publication number
- CN101305156B CN101305156B CN200680041995XA CN200680041995A CN101305156B CN 101305156 B CN101305156 B CN 101305156B CN 200680041995X A CN200680041995X A CN 200680041995XA CN 200680041995 A CN200680041995 A CN 200680041995A CN 101305156 B CN101305156 B CN 101305156B
- Authority
- CN
- China
- Prior art keywords
- rig
- screw element
- pin
- described ground
- mount pad
- 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
- 230000033001 locomotion Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 16
- 230000035939 shock Effects 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000000916 dilatatory effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/26—Drilling without earth removal, e.g. with self-propelled burrowing devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
- E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to an earth boring device with a housing, which has an internal thread in at least one section, and with a threaded element with a corresponding external thread, the threaded element being slotted and having a location for a securing element, via which when inserting into the location, the outside diameter of the threaded element or the surface pressure of the threaded connection between the threaded element and the housing is increased.
Description
Technical field
The present invention relates to a kind of ground rig or a kind of screw element that is threaded locking system that is used for the ground rig.
Background technology
The ground rig of known various forms of implementation, it lays or repairs the field of circuit and pipeline in particular for not ditching.
A kind of ground rig; The promptly so-called ground rocket (Erdrakete) that bores; It is characterized in that having the impact driver of an inside; It has one boring rocket envelope inside, ground by pressure fluid quiveringly, that is the impact piston of reciprocating impulse ground promotion, depends on the direction of propulsion that bores the ground rocket; Impact piston impinges upon shell forwardly or on the shock surface at rear portion or clash into a member that is connected with shell, and uses it for the kinetic energy that in soil, advances the ground rig in this case and pass to the ground rig.
Obviously, not only the shock surface of impact piston but also shell must can sustain very big load.Owing to this reason, the shock surface of impact piston and shell is implemented to quench.Can stipulate that in addition the anterior at least shock surface of shell is combined in after the wearing and tearing in the removable member.Can control the maintenance cost of boring the ground rocket thus.This removable member thereby be used for impact energy is passed to shell from impact piston.Therefore for it and being connected of shell having proposed high requirement.
This in the prior art have the replaceable member of shock surface to be connected with shell by screw thread usually, wherein, is threaded often to add and carries out locking by a kind of locking thread glue.Yet thisly find to exist some problems at work by the prior art known solutions.At first, the curing of locking thread glue need not be undesirable time, during this period of time bores the ground rocket and for security reasons can not work.This delay especially causes improving running cost with boring when planning but will change impact structure.The very big workload of impact structure spend of in addition, carrying out locking by locking thread glue could be separated with shell again.
Summary of the invention
Therefore the purpose of this invention is to provide a kind of ground rig, it is reduced to one item missing shortcoming in the prior art.A kind of brill ground rocket especially to be provided, wherein, have the member of shock surface to assemble easily and to dismantle, and however still can guarantee secure fixation.
For this reason; The present invention provides a kind of ground rig; Comprise that a shell that at least one section, has an internal thread and one have corresponding externally threaded screw element; Wherein, said screw element be crack and have a mount pad that is used for a lock piece, make the external diameter of screw element strengthen in the mount pad or make screw element increase through lock piece is inserted with the surface pressing that is threaded between the shell; It is characterized by, have one in the enclosure portion by the impact piston of the pressure fluid oscillating movement that infeeds.
Core of the present invention is; At least that crack at a position, as to be preferred for directly or indirectly the impact piston of impact energy rig from ground being passed to a shell screw element; Be connected with shell by screw thread; This is threaded and carries out locking by the locking pin, and the locking pin inserts in the screw element stitch open area to also meanwhile impelling the external diameter that strengthens screw element in its set mount pad.External diameter increases improves the surface pressing that is threaded, and can avoid undesirable loosening thus.
Said screw element refers to a kind ofly to have one and in a section, is the member of circular cross section at least, also is shaped on external screw thread in this external said section.
Cracking in screw element should be designed to, and can screw element be strutted through inserting the locking pin.The locking pin preferably extends along the screw element longitudinal axis, and here same possible is to be sewn on one and in＜90 ° angular range, to extend towards the screw element longitudinal axis.In addition preferably, seam extends along the whole section that is shaped on screw thread on the screw element.Preferably stipulating aspect the degree of depth of cracking: seam extends to screw element always from the circumference of screw element longitudinal axis or (when screw element during in form for threaded collar) finishes to an endoporus.Here, seam can be radially or diagonally extending.
Preferably, the mount pad of locking pin has the section of a contraction, that is to say that cross section reduces continuously in this section.Preferably, the said section of mount pad is conical shrinks.When tying when connecing with inserting lock pin in the mount pad, this (taper shape) of mount pad shrinks seam broadening that impels screw element and the external diameter that causes strengthening screw element thus.
Additionally or alternatively, the locking pin can have one to be preferably the conical section that shrinks, and when inserting the locking pin, realizes stitching broadening by shrinking section.
By a favourable design, the locking pin has one and has externally threaded section, and it is corresponding with the section that mount pad is shaped on internal thread.Therefore the locking pin can screw in the mount pad.
Preferably, the ground auger building service design is impact type drilling machine (bores ground rocket), that is to say that it has an impact driver in inside, comprises one quiveringly that is reciprocating impact piston.Impact piston preferably promotes by the pressure fluid that can infeed drilling machine from the outside, preferred compressed air and/or highly pressurised liquid.By this design of ground rig, screw element can be used for the impact energy of impact piston is passed to directly or indirectly the shell of drilling machine.
By another favourable design code, screw element is designed to threaded collar.Impulse pin can along y direction at least move in the threaded collar guided inside.Can stipulate that in this case the mount pad that is used for the locking pin disposes prejudicially, that is be arranged in the fringe area of threaded collar.Impulse pin can stretch out through the shell of threaded collar from drilling machine, and is connected with drill bit there, can be with respect to the shell motion of drilling machine thereby drill bit itself is set to.
Press this design of drilling machine, in working order, for example at drilling machine when direction of propulsion drives, impact piston can strike on the impulse pin, impulse pin is therefore at first with respect to the shell motion, and meanwhile squeezes the soil that is in before the drilling machine with drill bit.Then, second propulsion phase, remaining impact energy can be passed to threaded collar directly or indirectly through impulse pin or impact piston, so that shell is sent in the boring that drill bit processes.The multistage that can reach impact energy in this way transmits, and has proved already that it was favourable being made in accessible fltting speed aspect like this.Except two stages of having mentioned transmit, can adopt many arbitrarily propulsion phases, in this case, in (on the time) the last stage, impact energy is passed to shell through threaded collar usually.
Also can advantageously be provided to existing drilling machine by screw element of the present invention afterwards.Therefore especially can the assembling of new drilling machine and the maintenance of already used drilling machine be more prone to through using by screw element of the present invention.
Through using by screw element of the present invention, screw element can screw in the shell of drilling machine easily sometimes even by hand.After this locking pin is inserted in the mount pad of screw element, consequently cause increasing the surface pressing that is threaded and thereby prevent undesirable loosening.Therefore, this drilling machine can directly use, and is not that kind that for example when bonded screw thread locking, needs must be waited for curing.
Therefore, possibly need only remove the locking pin again, the surface pressing in reducing again thus to be threaded as the screw element of wear-out part in order to change.After this, the big power of expense can manually not screw out screw element sometimes from shell.
By a kind of preferred form of implementation, lock piece is designed to the multi-part form.Especially preferably, lock piece has a sleeve and a pin that inserts in the screw element mount pad.This pin particularly preferably at least partly is contained in the sleeve.
By a kind of preferred form of implementation, mount pad runs through screw element and a mouth is arranged and in the opposed side of screw element a mouth is arranged in a side of screw element.Preferably, sleeve is packed into the mount pad and in pin packed mount pad into from opposite side, especially by this way, that is, pin part at least inserted in the sleeve, for example external screw thread is engaged in the internal thread of sleeve from a side.
By a kind of preferred form of implementation, the pin in the sleeve of at least partly packing into has an anti-rotation device, can prevent that by it pin from rotating in mount pad.For example, pin has an interior lug boss of respective slot that embeds screw element.
By a kind of preferred form of implementation, pin is designed to conical.As replenishing or alternatively, sleeve can be designed as conical.
By a kind of preferred form of implementation, the guiding section of mount pad is designed for installs a sleeve that is configured to brake shoe.Said sleeve is guided on two opposed guiding faces in the guiding section, in order to move along these two guiding faces.It is asymptotic that these guiding faces strut travel direction along sleeve.Particularly preferably, brake shoe (sleeve) also is designed to conical.Particularly preferably, brake shoe except contact with guiding face and with pin engagement, do not contact with other members.
Brake shoe can have some grooves, wherein embeds the section of the formation guiding face of mount pad.
By a kind of preferred form of implementation, pin has the external screw thread that is engaged in the brake shoe internal thread.Pin can have a head, and pin rests on the section of screw element through it.Said head and/or screw element can be designed to taper shape for the section that it sets.Thus, head can help dilating effect.
By a kind of preferred form of implementation, the seam of screw element is along the screw element longitudinal axis and radially run through screw element and also run through mount pad.Screw element for a kind of seam of wherein screw element longitudinally runs through to second end from first end fully advantageously, not only is provided with device for spreading at first end but also at second end.Screw element is vertically strutted along it equably.Certainly also can select only at one end to implement expansion.Do the quantity that has reduced member like this.For example strut equably and reach through the top form of implementation of having explained, wherein lock piece is designed to the multi-part form, pin is in an end inserts mount pad and be contained in the sleeve in the other end inserts mount pad.
Except being applied to drilling machine, can being used in all by screw element of the present invention and seeking effectively in the field with the screw thread locking that can decompose again.
Description of drawings
The embodiment that representes by accompanying drawing below specifies the present invention.
Represent in the accompanying drawing:
Fig. 1 is by the cross-sectional side elevational view that is threaded the ground rig of part and locking pin of the present invention;
The isometric view of the screw element of Fig. 2 Fig. 1;
The isometric view of the lock piece of Fig. 3 Fig. 1 (locking pin);
Fig. 4 is by the cross-sectional side elevational view of the screw element of another kind of form of implementation;
Fig. 5 is by the cross-sectional side elevational view of the screw element of the third form of implementation; And
Fig. 6 presses the phantom drawing of the screw element of Fig. 5.
The specific embodiment
Fig. 1 has represented by the anterior cross-sectional side elevational view of ground of the present invention rig.It has a shell 1, and in the enclosure, impact piston 2 drives under the compressed air effect quiveringly, and periodically impinges upon on the shock surface of impulse pin 3 in this case, and impulse pin is connected with shell 1 through threaded collar 4 movingly.Being threaded between threaded collar 4 and the shell 1 carried out locking by locking pin 10.
Impulse pin 3 stretches out from shell 1 through threaded collar 4, and is connected with subland drill 6 through pin 5 there.
Impact piston 2 impinges upon the drill bit 6 that impels impulse pin 3 on the shock surface of impulse pin 3 and be attached thereto with respect to shell 1 relative motion, thus make drill bit 6 row's agent around drilling machine soil and process a boring, motion together of shell 1 at first.Only after impulse pin 3 was accomplished the relative motion of regulation with respect to shell 1, the step 7 of impulse pin 3 just collided on sleeve 8, and sleeve is passed to the threaded collar 4 that is spun on shell 1 with impact energy again.Make the shell 1 of drilling machine follow the drill bit 6 that has advanced in this way.
Be contained in sleeve 8 inner springs 9 and guarantee that drill bit 6 returns the retraction position behind each stroke.
Can be found out that by Fig. 2 threaded collar 4 has a longitudinal joint, wherein combination has a mount pad that is used for locking pin 10.A section of mount pad is shaped on screw thread 11, and it is used to screw in locking pin 10, and the locking pin has a section (see figure 3) that is shaped on external screw thread 14 accordingly for this reason.
In addition, not only threaded collar 4 interior mount pad but also locking pins 10 all have corresponding conical section 12,13.When screwing in locking pin 10 in the mount pads, the longitudinal joint of threaded collar 4 struts through the relative motion of these two conical section each other, has meanwhile increased the surface pressing that between threaded collar 4 and shell 1, is threaded.
Another kind of form of implementation shown in Fig. 4 has been represented a lock piece 110 that is designed to the multi-part form.This lock piece has the sleeve 111 and the pin 112 that are contained in screw element 104 mount pads.Pin 112 parts are packed in the sleeve 111.Said mount pad runs through screw element 104, and a mouth is arranged and at the opposite side of screw element a mouth is arranged in a side of screw element.Sleeve 111 inserts in the mount pad from a side, and pin 112 inserts in the mount pad from opposite side, and here pin 112 is engaged on external screw thread 113 in the internal thread 114 of sleeve 111.Pin 112 has a lug boss 115 that plays the anti-rotation device effect.Said lug boss 115 can embed in screw element 104 corresponding groove.
Not only pin 112 but also sleeve 111 all are designed to conically, exactly are designed to, and cone separately shrinks along opposite direction.
Fig. 5, the third form of implementation shown in 6 have been represented a lock piece 210 that is designed to the multi-part form.This lock piece 210 has one to be installed in sleeve 211 and pin 212 that is designed to the brake shoe shape in the screw element 204 mount pads guiding section 220.Pin 212 is engaged on external screw thread in the internal thread of sleeve 211.Screw element 204 not only radially being run through along the vertical of screw element 204 but also along it by sealing 221.Sealing 221 has also run through mount pad.
The guiding section 220 of mount pad has two guiding faces 222 and 223, and sleeve 211 is guided on these two guiding faces, to move along this guiding face 222,223.Guiding face 222,223 is asymptotic along the direction of motion of sleeve 211.This is meant in order to strut screw element 204, that direction of motion that sleeve 211 must move along it.
Except contact with guiding face 222,223 and with pin 212 engagement, sleeve 211 does not contact with other members.The section of the formation guiding face 222,223 of mount pad embeds in the groove 224,225 of sleeve 211.
Section after screw element 204 has one, portion is provided with bearing within it, and the head 226 of pin 212 rests on this bearing.Said bearing preferably is designed to conical (not shown), so as be designed to the mating reaction of conical head (not shown) and on screw element 204, apply dilating effect.Bearing is adjacent therewith, and screw element has a sleeve-like section, the part of adjoining with head 226 that it runs through pin 212.
Claims (22)
1. rig; Comprise that a shell (1) that at least one section, has an internal thread and one have corresponding externally threaded screw element; Wherein, Said screw element be crack and have a mount pad that is used for a lock piece (10,110,210); Make the external diameter of screw element strengthen in the mount pad or make screw element increase through lock piece is inserted, it is characterized by with the surface pressing that is threaded between the shell (1), have one in shell (1) inside the impact piston (2) by the pressure fluid oscillating movement that infeeds.
2. according to described ground of claim 1 rig, it is characterized by, the mount pad of screw element has at least one and shrinks section (12).
3. according to claim 1 or 2 described ground rig, it is characterized by, lock piece has a locking pin (10) that has a contraction section (13).
4. according to claim 1 or 2 described ground rig, it is characterized by, mount pad has at least one section that has an internal thread (11), and it is corresponding with a threaded sections (14) of the locking pin (10) of lock piece.
5. according to described ground of claim 1 rig, it is characterized by, screw element is designed to threaded collar (4).
6. according to described ground of claim 5 rig, it is characterized by, an impulse pin (3) is guided along y direction at least in that said threaded collar (4) is inner movingly.
7. according to described ground of claim 6 rig, it is characterized by, a drill bit (6) of ground rig is connected with said impulse pin (3).
8. according to claim 6 or 7 described ground rig, it is characterized by, impact piston (2) is gone up bump toward impulse pin (3) when the ground auger equipment working state.
9. according to claim 6 or 7 described ground rig, it is characterized by, impulse pin (3) is striking on the threaded collar (4) after through the relative motion of a predetermined distance with respect to shell (2) directly or indirectly.
10. according to described ground of claim 1 rig, it is characterized by, lock piece (110,210) is designed to the multi-part form.
11. according to described ground of claim 10 rig, it is characterized by, lock piece (110,210) has an interior sleeve (111,211) and a pin (112,212) of mount pad that inserts screw element (104,204).
12. according to described ground of claim 11 rig; It is characterized by; Mount pad runs through screw element (104,204) and a mouth is arranged and in the opposed side of screw element (104,204) mouth is arranged in a side of screw element (104,204); Thereby sleeve (111,211) can be loaded into the mount pad from a side, and pin (112,212) can be loaded into the mount pad from opposite side.
13. according to claim 11 or 12 described ground rig, it is characterized by, pin (112) has at least one anti-rotation device, can prevent that by it pin (112) from rotating in mount pad.
14. according to claim 11 or 12 described ground rig, it is characterized by, pin (112,212) is designed to conical and/or sleeve (111,211) is designed to conical.
15. according to described ground of claim 11 rig; It is characterized by; A guiding section of design and installation seat is used to install a sleeve (211) that is configured to brake shoe; This sleeve (211) is gone up guiding at inherent two the opposed guiding faces of guiding section (220) (222,223), and with along this two guiding faces (222,223) motion, it is asymptotic that these guiding faces (222,223) strut travel direction along sleeve (211).
16. according to described ground of claim 15 rig, it is characterized by, brake shoe (211) except contact with guiding face (222,223) and with pin (210) engagement, do not contact with other members.
17. according to claim 15 or 16 described ground rig, it is characterized by, brake shoe (211) has groove (224,225), in these grooves, embeds the section of the formation guiding face (222,223) of mount pad.
18. according to described ground of claim 17 rig, it is characterized by, brake shoe (211) is designed to conical.
19. according to described ground of claim 15 rig, it is characterized by, pin (212) has the external screw thread in the internal thread that is engaged on brake shoe (211).
20. according to described ground of claim 11 rig, it is characterized by, pin (212) has a head (226), pin rests on the section of screw element (204) through this head.
21. according to described ground of claim 20 rig, it is characterized by, said head design coning.
22. according to described ground of claim 1 rig, it is characterized by, crack (221) of screw element (204) are along the longitudinal axis of screw element and radially run through screw element (204) and also run through mount pad.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005054311.1 | 2005-11-11 | ||
| DE102005054311A DE102005054311A1 (en) | 2005-11-11 | 2005-11-11 | Drill for trenchless pipe-laying has threaded ring which fits into drill casing and acts as mounting for drill hammer, ring having axial bore, into which locking bolt screws |
| DE102006029346 | 2006-06-23 | ||
| DE102006029346.0 | 2006-06-23 | ||
| PCT/EP2006/010859 WO2007054353A2 (en) | 2005-11-11 | 2006-11-13 | Thread securer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101305156A CN101305156A (en) | 2008-11-12 |
| CN101305156B true CN101305156B (en) | 2012-01-11 |
Family
ID=37982704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680041995XA Expired - Fee Related CN101305156B (en) | 2005-11-11 | 2006-11-13 | Earth auger |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101305156B (en) |
| DE (1) | DE102005054311A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061685B (en) * | 2013-01-08 | 2017-02-08 | 深圳市阿特拉能源技术有限公司 | Downhole drilling tool and anti-loosening self-locking structure thereof |
| CN103556948B (en) * | 2013-11-12 | 2015-12-09 | 吉林大学 | Churn compaction drill bit |
| CN107407134B (en) * | 2015-04-17 | 2020-05-19 | 哈利伯顿能源服务公司 | Coupling mechanism for a drive shaft transmission assembly |
| CN104948120B (en) * | 2015-07-02 | 2017-07-07 | 江苏和信石油机械有限公司 | A kind of radial direction locking type ocean drill rod threaded nipple |
| CN109025845B (en) * | 2018-09-18 | 2020-10-27 | 中国冶金地质总局中南地质调查院 | Multifunctional geological exploration drill bit |
| CN110410009B (en) * | 2019-08-10 | 2025-01-07 | 德威土行孙工程机械（北京）有限公司 | A dual-output-shaft trenchless directional drilling rig power device and a matching drill rod |
| CN111021944B (en) * | 2019-12-22 | 2024-10-29 | 江苏省第二地质工程勘察院 | Combined down-the-hole hammer sealing anti-loosening structure |
| CN113187397B (en) * | 2021-05-31 | 2022-07-19 | 中煤科工集团西安研究院有限公司 | Guide head deflectable type drill bit for reaming large curvature section of directional drilling and reaming method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2182903A (en) * | 1938-12-19 | 1939-12-12 | W K P Oil Tool Co | Demountable rock bit |
| CN2050500U (en) * | 1989-04-04 | 1990-01-03 | 中国建筑科学研究院建筑结构研究所 | Conical plug high stationary expansion bolt |
| CN2533266Y (en) * | 2001-09-18 | 2003-01-29 | 付彦行 | Recovery type plastic anchor bolt |
| DE10201225A1 (en) * | 2002-01-15 | 2003-08-07 | Tracto Technik | Screw coupling for drill rods, in particular to be used for horizontal drilling, comprising slotted sleeve and tensioning element |
| US20040057810A1 (en) * | 2002-09-21 | 2004-03-25 | Breslin Patrick W. | Split lock screw fastener assembly and method |
| DE10359880A1 (en) * | 2003-12-18 | 2005-07-14 | Tracto-Technik Gmbh | Boring rod system for horizontal directional boring, has bending unit with connection sides for boring rod and drilling tool, respectively such that bending unit is arranged between drilling tool and boring rod |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE878125C (en) * | 1950-08-23 | 1953-06-01 | Martin Betzler | Retaining ring for seals |
| CH596432A5 (en) * | 1975-08-19 | 1978-03-15 | Hydrostress Ag |
-
2005
- 2005-11-11 DE DE102005054311A patent/DE102005054311A1/en not_active Ceased
-
2006
- 2006-11-13 CN CN200680041995XA patent/CN101305156B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2182903A (en) * | 1938-12-19 | 1939-12-12 | W K P Oil Tool Co | Demountable rock bit |
| CN2050500U (en) * | 1989-04-04 | 1990-01-03 | 中国建筑科学研究院建筑结构研究所 | Conical plug high stationary expansion bolt |
| CN2533266Y (en) * | 2001-09-18 | 2003-01-29 | 付彦行 | Recovery type plastic anchor bolt |
| DE10201225A1 (en) * | 2002-01-15 | 2003-08-07 | Tracto Technik | Screw coupling for drill rods, in particular to be used for horizontal drilling, comprising slotted sleeve and tensioning element |
| US20040057810A1 (en) * | 2002-09-21 | 2004-03-25 | Breslin Patrick W. | Split lock screw fastener assembly and method |
| DE10359880A1 (en) * | 2003-12-18 | 2005-07-14 | Tracto-Technik Gmbh | Boring rod system for horizontal directional boring, has bending unit with connection sides for boring rod and drilling tool, respectively such that bending unit is arranged between drilling tool and boring rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101305156A (en) | 2008-11-12 |
| DE102005054311A1 (en) | 2007-05-16 |
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