CN208486844U - It is a kind of to reversely rotate water jet preventing sticking drill pipe system - Google Patents
It is a kind of to reversely rotate water jet preventing sticking drill pipe system Download PDFInfo
- Publication number
- CN208486844U CN208486844U CN201820976098.8U CN201820976098U CN208486844U CN 208486844 U CN208486844 U CN 208486844U CN 201820976098 U CN201820976098 U CN 201820976098U CN 208486844 U CN208486844 U CN 208486844U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- drilling rod
- hole
- water
- annular partition
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Earth Drilling (AREA)
Abstract
Water jet preventing sticking drill pipe system is reversely rotated the utility model discloses a kind of, which includes the preceding drilling rod set gradually, water injector, rotating device and rear drilling rod；Through hole is equipped on the inside axial direction of preceding drilling rod and rear drilling rod；Water injector includes the first cylinder and connector interconnected, the side wall of first cylinder is equipped with multiple groups hole for water spraying, and first cylinder inner sidewall above be equipped with limited block, connector is fixedly connected with preceding drilling rod, and the water hole of perforation is additionally provided on connector, water hole is connected with the inside of through hole and the first cylinder；Rotating device includes the second cylinder and annular partition interconnected, and the second cylinder is fixedly connected with rear drilling rod, and the free end of annular partition extend into the first inner barrel, and connect with the first barrel body rotation and annular partition on be additionally provided with opening.The utility model avoids the generation of bit freezing phenomenon.Simultaneously also have many advantages, such as operation it is convenient, move back drilling speed degree fastly and drilling construction work efficiency is high.
Description
Technical field
The utility model relates to drilling construction equipment field, in particular to a kind of reverse rotation water jet preventing sticking drilling rod system
System and application method.
Background technique
Drilling construction, which refers to, connects the operation that drilling tool processes pore-forming in geologic body by drilling machine in engineering site.Currently,
Drilling construction is widely used in gas discharge in mine, water injection, geological prospecting, the drilling geotechnical engineerings such as release and slope anchorage
In.And during drilling construction, with the increase of drilling depth, drilling cuttings accumulation can not be discharged in time in the borehole, cause to bore
The problems such as bar can not rotate, bit freezing, there is also burying, loses the case where brill when serious.Bit freezing situation can not only be made once occurring
At the damage of drilling rod, the service life of drilling tool is reduced, and will have a direct impact on drilling construction progress, reduces working efficiency.
To solve the above-mentioned problems, Chinese Patent Application No. 201310051709.X discloses a kind of anti-collapse hole of coal bed drilling
With drilling lower sleeve device and boring method, it is to creep into sleeve together with drilling rod, exits fried dough twist from sleeve inner later
Drilling rod stays sleeve in the borehole, and bit freezing caused by avoiding to a certain extent because of collapse hole moves back brill difficult problem.However, should
Design and construction process is complicated, and drilling efficiency is low, and sleeve is stayed in the borehole, not only wastes construction material, but also increase brill
The cost of hole construction.
There are also a kind of preventing sticking drilling rod protections structure (patent No.: 201711331508.X), and China in the prior art
A kind of preventing sticking jackrod structure disclosed in number of patent application 201510012163.6 is all design with the high pressure gas in closed chamber
Body clears up drilling, drilling cuttings band is portalled outer.However, the device is only applicable to the cleaning of a small amount of drilling cuttings, it can not remove and make
At the scleroma core of bit freezing, in addition, the gas pressure sprayed can subtract when bore inner is there are when crack or longer drilling distance
It is weak, it can not the discharge out of drilling by drilling cuttings.
In addition, drilling rod disclosed in above-mentioned two document can only unidirectionally be crept into, applied when drilling in soft seam and dirt band coal seam
In working hour, this drilling rod unidirectionally crept into is easy to appear broken spoil drill-pipe-sticking-head or coal seam collapse hole holding card drilling rod phenomenon occurs.
In order to solve unidirectionally to creep into the drilling rod bring above problem, have at present it is a kind of can with the drill pipe system of positive and negative rotation,
Such as:
Chinese Patent Application No. 2012103213759 discloses a kind of drilling rod positive and negative rotation connection for underground coal mine drilling machine
Device, it is one attachment device of setting between drilling rod and drill bit shaft, and attachment device is by the first, second external splines and internal spline
Set and spring cylindrical pin composition.The patent can solve certain not serious bit freezings and holding card drilling rod phenomenon, but with drilling rod
High speed rotation, the incision of spline influenced by strong dynamic loading, easily generation fatigue fracture, in addition, spline manufacturing process
Complexity needs special equipment, improves production cost.
Chinese Patent Application No. 201410224253.7 discloses a kind of screw connected auger stem armful brill reversion of realization
Withdrawing device, it includes at least 2 screw connected auger stems, and the threaded connection place between drilling rod is solid by keyway and chuck
It is fixed.Although reversion extraction when collapse hole embraces brill or bit freezing may be implemented in the patent, but since its drilling rod water spray is sprayed from drill bit
Out, the water of ejection is constructed for wet boring, and with the increase of drilling depth, bit freezing or an armful brill are often appeared in other than drill bit
Position even invert due to there is no hole for water spraying in drill body, drilling cuttings accumulation can not also be discharged in time in the borehole, cause to bore
The problems such as bar can not rotate, bit freezing, time-consuming very long although drilling cuttings can also be taken out of from the water that drill bit sprays, especially deep hole
The problems such as when bit freezing, effect is poor, can not thoroughly solve bit freezing, burying and lose brill.
Therefore the prior art needs further to improve and develop.
Utility model content
In view of above-mentioned deficiencies of the prior art, the utility model is quasi- provides a kind of reverse rotation water jet preventing sticking drilling rod system
System, the problems such as solving bit freezing during drilling construction, burying and losing brill.
The purpose of this utility model is achieved through the following technical solutions:
It is a kind of to reversely rotate water jet preventing sticking drill pipe system, which is characterized in that it includes the preceding drilling rod set gradually, spray
Water installations, rotating device and rear drilling rod, the rear drilling rod are connected with external drilling machine；
Through hole is equipped on the inside axial direction of the preceding drilling rod and rear drilling rod；
The water injector includes the first cylinder and connector interconnected, and connector is fixedly connected with preceding drilling rod；?
The side wall of first cylinder is equipped with symmetrical multiple groups hole for water spraying, and limited block is equipped with above the inner sidewall of the first cylinder；Even
The water hole of perforation is additionally provided on junctor, which is connected with the inside of through hole and the first cylinder；
The rotating device includes the second cylinder and annular partition interconnected, the second cylinder and the fixed company of rear drilling rod
It connects；The free end of the annular partition extend into the first inner barrel, connect with the first barrel body rotation；On the annular partition
It is additionally provided with opening, the limited block of water injector is located in opening；
Wherein, the limited block is rotated relative to the first cylinder to working position or clean bits for limiting annular partition,
When being in working position, annular partition blocks the hole for water spraying；When being in clean bits, the opening and hole for water spraying of annular partition
It is connected.
Further, the inner sidewall of first cylinder is equipped with outwardly projecting collar flange, the annular partition
Outer surface of upper is equipped with rotation card slot, and rotation card slot is matched with collar flange.
Further, the connector is metal square cylinder, and connector is fixedly connected by bolt with preceding drilling rod.
Further, the outer surface of second cylinder is equipped with multiple cutting teeths, and each cutting teeth is outwardly projecting circle
Platform shape.
Further, interior gasket is equipped at the top of the inner wall of second cylinder, the bottom of the second cylinder is equipped with external seal
Pad, interior gasket and external seal pad pass through two liquid mixed hardening glue and are fixed on the second cylinder.
A kind of application method reversely rotating water jet preventing sticking drill pipe system provided by the utility model comprising following
Step:
S1, it starts drilling machine and rotates forward rear drilling rod, drive the annular partition of rotating device to rotate, pass through the limit of limited block
Effect, blocks annular partition by the hole for water spraying of water injector, then, drilling rod rotation before driving；
S2, when drilling machine rotate forward bit freezing when, reversely rotated after drilling machine is stopped, rotating backward annular partition, until with limit
Another side contacts of position block, the opening of annular partition are connected with hole for water spraying, and clean water is sprayed by hole for water spraying and drill bit.
Further, the cutting in the step S2, when being reversely rotated after drilling machine stopping, on the rotating device
Tooth spiral turns that the scleroma core in drilling is loosened or destroyed.
Further, after the step S2 further include:
S3: when drilling machine reversion can not unfreezing when, the direction of rotation of interval setting time transformation drilling machine makes preceding drilling rod and rear bores
Bar rotating forward or preceding drilling rod and rear drilling rod invert alternate run.
Further, the setting time is generally 5-20S.
The utility model has the beneficial effects that:
1, the utility model is rotated by drilling machine and provides torque, and drilling rod rotates and be transmitted to rotating device after drive, then,
The annular partition of rotating device and the limited block of water injector cooperate, and so that torque is continued drilling rod forward and transmit, work as drilling machine
When just going to working position, annular partition blocks the hole for water spraying on water injector, so that clean water is by water hole and runs through
Hole is flowed into bit location, carries out wet boring construction.When bit freezing, when operation drilling machine is inverted to clean bits, annular partition
Opening is connected to hole for water spraying, so that clean water sprays simultaneously from hole for water spraying and drill bit, even deep hole bit freezing in this way can also be with
Bit freezing is quickly handled in time, achievees the purpose that drilling cuttings in cleaning drilling, so as to avoid the generation of bit freezing phenomenon.
2, the utility model utilizes the mutual cooperation of rectangular pin and square hole, in addition the fixation of bolt, so that drilling rod can
Realize positive brill and reversion, stability is high, and structure is simple, at low cost.
3, the alternating that the utility model is rotated and reverse by the device cooperates the cutting on water flow and rotating device
Tooth by accumulation drilling cuttings and can cause the scleroma core of bit freezing to loosen, destroy and take drilling out of during moving back and boring, effectively prevent rapidly
Burying, bit freezing during drilling construction and the problems such as lose brill.
4, device operation is convenient, and feasibility is high, greatly improves the working efficiency for moving back drilling speed degree and drilling construction.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram for reversely rotating water jet preventing sticking drill pipe system of the utility model；
Fig. 2 is a kind of structural representation of water injector for reversely rotating water jet preventing sticking drill pipe system of the utility model
Figure；
Fig. 3 is a kind of structural representation of rotating device for reversely rotating water jet preventing sticking drill pipe system of the utility model
Figure；
Fig. 4 is a kind of working position status diagram for reversely rotating water jet preventing sticking drill pipe system of the utility model；
Fig. 5 is a kind of clean bits status diagram for reversely rotating water jet preventing sticking drill pipe system of the utility model.
Fig. 6 be the utility model a kind of rotating forward process water injector for reversely rotating water jet preventing sticking drill pipe system with
Rotating device connects sectional view；
Fig. 7 be the utility model a kind of reversion process water injector for reversely rotating water jet preventing sticking drill pipe system with
Rotating device connects sectional view；
Fig. 8 is cross-sectional view of the Fig. 6 along line A-A；
Fig. 9 is cross-sectional view of the Fig. 7 along line C-C；
Figure 10 is cross-sectional view of the Fig. 7 along line B-B；
Figure 11 is cross-sectional view of the Fig. 7 along line D-D；
Figure 12 is that a kind of structure of interior gasket for reversely rotating water jet preventing sticking drill pipe system of the utility model is shown
It is intended to；
Figure 13 is that a kind of structure of external seal pad for reversely rotating water jet preventing sticking drill pipe system of the utility model is shown
It is intended to.
In figure: drilling rod before 1-, 2- water injector, the first cylinder of 21-, 22 connectors, 23- hole for water spraying, 24- limited block,
25- water hole, 26- rotary flange, 27- bolt, 3- rotating device, the second cylinder of 31-, 32- annular partition, 33- opening, 34-
Rotate card slot, 35- cutting teeth, gasket in 36-, 37- external seal pad, drilling rod after 4-, 5- through hole.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Refering to fig. 1 shown in -11, a kind of water jet preventing sticking drill pipe system of reverse rotation of the utility model comprising according to
Preceding drilling rod 1, water injector 2, rotating device 3 and the rear drilling rod 4 of secondary setting, rear drilling rod 4 and external drilling machine (not shown)
It is connected；Drilling machine is rotated for providing drilling rod 4 after torque drives.
Through hole 5 is equipped on the inside axial direction of preceding drilling rod 1 and rear drilling rod 4；Conveying of the through hole 5 as clean water
Channel.
Water injector 2 includes the first cylinder 21 interconnected and connector 22, is symmetrically set on the side wall of the first cylinder 21
There is multiple groups hole for water spraying 23, and is equipped with limited block 24 above the inner sidewall of the first cylinder 21, connector 22 and the fixed company of preceding drilling rod 1
It connects, and is additionally provided with the water hole 25 of perforation on connector 22, water hole 25 is connected with the inside of through hole 5 and the first cylinder 21
It is logical；
Rotating device 3 includes the second cylinder 31 interconnected and annular partition 32, and the second cylinder 31 and rear drilling rod 4 are fixed
Connection, the free end of annular partition 32 extend into inside the first cylinder 21, and is rotatablely connected with the first cylinder 21, and annular every
Opening 33 is additionally provided on plate 32, postive stop baffle 24 is located in opening 33；In the present embodiment, in order to guarantee clean water energy through being open
33 are uniformly flowed into hole for water spraying 23, and 33 size of being open is adapted with the distribution area of hole for water spraying 23, it is preferable that the present embodiment
In annular partition 32 by the segmentation of opening 33 be in two pieces of arc plates, two pieces of arc plates form a semi arches.At this point, limited block
24 two pieces of settings, hole for water spraying are also half cylinder in the distribution area of the first cylinder 21, and two pieces of arc plate rotation angles are up to
45 degree.The limited block 24 of (to) the utility model is for limiting annular partition 32 relative to the first cylinder 21 rotation to working position
Or clean bits, when being in working position, annular partition 32 blocks hole for water spraying 23；When being in clean bits, opening 33 and water spray
Hole 23 is connected.
The utility model is rotated by drilling machine and provides torque, and drilling rod 4 rotates and is transmitted to rotating device 3 after drive, then,
The annular partition 32 of rotating device 3 and the limited block 24 of water injector 2 cooperate, and so that torque is continued drilling rod 1 forward and transmit,
When drilling machine just goes to working position, annular partition 32 blocks the hole for water spraying 23 on water injector 2, so that clean water is by defeated
Water hole 25 and through hole 5 are flowed into bit location, when drilling machine is inverted to clean bits, the opening 33 and hole for water spraying of annular partition 32
23 connections achieve the purpose that drilling cuttings in cleaning drilling, so that clean water is sprayed from hole for water spraying 23 so as to avoid bit freezing phenomenon
Generation.Meanwhile the utility model also has many advantages, such as that operation is convenient, work efficiency is high for the fast and drilling construction that moves back drilling speed degree.
Specifically, the inner sidewall of the first cylinder 21 is equipped with outwardly projecting collar flange 26, the top of annular partition 32
Outer surface is equipped with rotation card slot 34, and rotation card slot 34 is matched with collar flange 26.In the utility model, by rotating card slot 34
With the mutual cooperation of collar flange 26, the relative rotation of annular partition 32 and the first cylinder 21 can be realized.
Preferably, connector 22 is metal square cylinder in order to improve the fastness that connector 22 is connect with preceding drilling rod 1,
Connector 22 is fixedly connected by bolt 27 with preceding drilling rod 1.
In the utility model, the outer surface of the second cylinder 31 is equipped with multiple cutting teeths 35, and each cutting teeth 35 is to evagination
Truncated cone-shaped out.When the rotation of the second cylinder 31, the scleroma core in drilling can be loosened, be destroyed to reach unfreezing by cutting teeth 35
Purpose.
Refering to fig. 1 shown in 2-13, in order to improve leakproofness, interior gasket 36 is equipped at the top of the inner wall of the second cylinder 31, the
The bottom of two cylinders 31 is equipped with external seal pad 37, and interior gasket 36 and external seal pad 37 are fixed on by two liquid mixed hardening glue
On second cylinder 31.
A kind of application method reversely rotating water jet preventing sticking drill pipe system of the utility model comprising following step
It is rapid:
S1, it starts drilling machine and rotates forward rear drilling rod 4, drive the annular partition 32 of rotating device 3 to rotate, pass through limited block 24
Position-limiting action, block annular partition 32 by the hole for water spraying 23 of water injector 2, then, drive before drilling rod 1 rotate；
S2, when drilling machine rotate forward bit freezing when, reversely rotated after drilling machine is stopped, rotating backward annular partition 32, until with
The opening 33 of another side contacts of limited block 24, annular partition 32 is connected with hole for water spraying 23, and clean water passes through hole for water spraying 23
It sprays, to realize the cleaning for the interior drilling cuttings that drills.
In the step S2 of the utility model, when reversely rotating after drilling machine stopping, the cutting teeth 35 on rotating device 3 rotates
Scleroma core in drilling is loosened or destroyed.
After the step S2 of the utility model further include:
S3: when drilling machine reversion can not unfreezing when, the direction of rotation of interval setting time transformation drilling machine, before making drilling rod 1 and after
The rotating forward of drilling rod 4 or preceding drilling rod 1 and rear drilling rod 4 invert alternate run.Preferably, setting time is generally 5-20S.
More than, only specific embodiment of the present utility model, but protection scope of the utility model is not limited thereto,
Any change or replacement expected without creative work, should be covered within the scope of the utility model.Therefore,
The protection scope of the utility model should be with protection scope defined by claims.
Claims (5)
1. a kind of reversely rotate water jet preventing sticking drill pipe system, which is characterized in that it includes preceding drilling rod, the water spray set gradually
Device, rotating device and rear drilling rod, the rear drilling rod are connected with external drilling machine；
Through hole is equipped on the inside axial direction of the preceding drilling rod and rear drilling rod；
The water injector includes the first cylinder and connector interconnected, and connector is fixedly connected with preceding drilling rod；First
The side wall of cylinder is equipped with symmetrical multiple groups hole for water spraying, and limited block is equipped with above the inner sidewall of the first cylinder；In connector
On be additionally provided with the water hole of perforation, which is connected with the inside of through hole and the first cylinder；
The rotating device includes the second cylinder and annular partition interconnected, and the second cylinder is fixedly connected with rear drilling rod；Institute
The free end for the annular partition stated extend into the first inner barrel, connect with the first barrel body rotation；It is also set on the annular partition
There is opening, the limited block of water injector is located in opening；
Wherein, the limited block is rotated relative to the first cylinder to working position or clean bits for limiting annular partition, works as place
When working position, annular partition blocks the hole for water spraying；When being in clean bits, the opening of annular partition is connected with hole for water spraying
It is logical.
2. reversely rotating water jet preventing sticking drill pipe system as described in claim 1, which is characterized in that first cylinder
Inner sidewall is equipped with outwardly projecting collar flange, and the outer surface of upper of the annular partition is equipped with rotation card slot, rotates card slot
It is matched with collar flange.
3. reversely rotating water jet preventing sticking drill pipe system as claimed in claim 2, which is characterized in that the connector is gold
Belong to square cylinder, connector is fixedly connected by bolt with preceding drilling rod.
4. reversely rotating water jet preventing sticking drill pipe system as described in claim 1, which is characterized in that second cylinder
Outer surface is equipped with multiple cutting teeths, and each cutting teeth is outwardly projecting truncated cone-shaped.
5. reversely rotating water jet preventing sticking drill pipe system as described in claim 1, which is characterized in that second cylinder
Interior gasket is equipped at the top of inner wall, the bottom of the second cylinder is equipped with external seal pad, and interior gasket and external seal pad pass through two liquid
Mixed hardening glue is fixed on the second cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820976098.8U CN208486844U (en) | 2018-06-25 | 2018-06-25 | It is a kind of to reversely rotate water jet preventing sticking drill pipe system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820976098.8U CN208486844U (en) | 2018-06-25 | 2018-06-25 | It is a kind of to reversely rotate water jet preventing sticking drill pipe system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208486844U true CN208486844U (en) | 2019-02-12 |
Family
ID=65248616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820976098.8U Withdrawn - After Issue CN208486844U (en) | 2018-06-25 | 2018-06-25 | It is a kind of to reversely rotate water jet preventing sticking drill pipe system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208486844U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571291A (en) * | 2018-06-25 | 2018-09-25 | 山东科技大学 | It is a kind of to reversely rotate water jet preventing sticking drill pipe system and application method |
| CN109899007A (en) * | 2019-03-25 | 2019-06-18 | 邹城兖矿泰德工贸有限公司 | Winding drill stem |
| CN110219605A (en) * | 2019-07-16 | 2019-09-10 | 邹城兖矿泰德工贸有限公司 | The dedicated cutting drilling rod of erosion control release |
| CN110424899A (en) * | 2019-09-02 | 2019-11-08 | 三门峡丽源环保工程设备有限公司 | A kind of telescopic drill rod and the cleaning device for the telescopic drill rod |
-
2018
- 2018-06-25 CN CN201820976098.8U patent/CN208486844U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571291A (en) * | 2018-06-25 | 2018-09-25 | 山东科技大学 | It is a kind of to reversely rotate water jet preventing sticking drill pipe system and application method |
| WO2019170033A1 (en) * | 2018-06-25 | 2019-09-12 | 山东科技大学 | Reverse rotation water spray-type anti-sticking drill pipe system and usage method therefor |
| CN109899007A (en) * | 2019-03-25 | 2019-06-18 | 邹城兖矿泰德工贸有限公司 | Winding drill stem |
| CN110219605A (en) * | 2019-07-16 | 2019-09-10 | 邹城兖矿泰德工贸有限公司 | The dedicated cutting drilling rod of erosion control release |
| CN110424899A (en) * | 2019-09-02 | 2019-11-08 | 三门峡丽源环保工程设备有限公司 | A kind of telescopic drill rod and the cleaning device for the telescopic drill rod |
| CN110424899B (en) * | 2019-09-02 | 2024-05-10 | 三门峡丽源环保工程设备有限公司 | Telescopic drill rod and cleaning device for same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208486844U (en) | It is a kind of to reversely rotate water jet preventing sticking drill pipe system | |
| CN108571291A (en) | It is a kind of to reversely rotate water jet preventing sticking drill pipe system and application method | |
| CN101586441B (en) | High-pressure water jet system and method for drilling and enlarging holes on coal bed | |
| CN100485163C (en) | Coal bed gas drainage method and device | |
| CN204060514U (en) | Colliery layer-through drilling high-pressure water jet drilling and expanding apparatus | |
| CN201460734U (en) | High-pressure water jet coal seam drilling and reaming system | |
| CN110130326B (en) | High-pressure jet grouting pile construction method for building application | |
| CN103291219B (en) | Drilling and punching integrated hydraulic drill bit | |
| CN212317853U (en) | Passive extrusion type pulse coal dust jet flow coal breaking pressure relief permeability increasing device | |
| CN103758130A (en) | Multi-medium ultrahigh pressure nozzle | |
| CN111254924B (en) | Application method for road and bridge construction by using high-pressure jet grouting pile nozzle | |
| CN111155933B (en) | High-pressure jet grouting pile drill bit based on road and bridge construction application | |
| CN213061989U (en) | High-pressure rotary spraying device | |
| CN110130325B (en) | Construction method for rock drilling and grouting | |
| CN216197866U (en) | Civil engineering pile foundation drill bit that stability is high | |
| CN206429245U (en) | The servicing unit that sprays water with high pressure for mud water balance push bench | |
| CN113246223B (en) | Adjustable ultrahigh-pressure water jet cutting device and using method | |
| JP5697025B2 (en) | Drilling device for hole for embedding electrode material | |
| CN210049233U (en) | Construction equipment based on high-pressure jet grouting pile application | |
| CN208252048U (en) | Brill for emergency repair drilling machine infuses integral type drilling rod | |
| CN203783506U (en) | Cylindrical-tooth milling shoe used for milling of composite bridge plug | |
| CN209855729U (en) | Dry type drilling orifice dust removing device for underground coal mine | |
| CN203066078U (en) | Drilling and spraying integrated device | |
| CN203716154U (en) | Multi-medium ultrahigh-pressure sprayer | |
| CN111424663A (en) | Environment-friendly and efficient pile head breaking method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190212 Effective date of abandoning: 20230714 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190212 Effective date of abandoning: 20230714 |