CN101750234A - Hand-holding original-state pillar collecting device - Google Patents

Hand-holding original-state pillar collecting device Download PDF

Info

Publication number
CN101750234A
CN101750234A CN 200810229971 CN200810229971A CN101750234A CN 101750234 A CN101750234 A CN 101750234A CN 200810229971 CN200810229971 CN 200810229971 CN 200810229971 A CN200810229971 A CN 200810229971A CN 101750234 A CN101750234 A CN 101750234A
Authority
CN
China
Prior art keywords
original
state
drilling rod
collecting device
connection block
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.)
Pending
Application number
CN 200810229971
Other languages
Chinese (zh)
Inventor
刘作新
王振营
张法升
王月
舒乔生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Applied Ecology of CAS
Original Assignee
Institute of Applied Ecology of CAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Institute of Applied Ecology of CAS filed Critical Institute of Applied Ecology of CAS
Priority to CN 200810229971 priority Critical patent/CN101750234A/en
Publication of CN101750234A publication Critical patent/CN101750234A/en
Pending legal-status Critical Current

Links

Images

Abstract

The present invention relates to a hand-holding original-state pillar collecting device belonging to the technical field of drilling, which comprises a drilling barrel, a base seat, a connection seat and a drilling rod, wherein the connection seat and the base seat are respectively arranged at both ends of the drilling barrel, and the drilling rod is connected with the connection seat. The drilling barrel is combined by two semi circles through grooves mutually engaged in a sliding way. When compacted soil samples are collected, two parts of a barrel body can be separated to obtain better original-state soil samples. When loose soil samples are collected, the drilling barrel can be directly used as a container to study and test the performance of original soil, while soil does not need to be taken out, and thus, the damage for original-state soil samples is avoided. A plurality of drilling barrels can be superposed to form required original-state pillars, so not only original-state pillars can be collected well, but also the collected original-state pillars are convenient to move and do other follow-up work. In a use process, soil sections do not need to dig, and original-state soil samples which are required to have deep inner sections can be obtained. Digging work for collecting field original-state soil samples is reduced.

Description

Hand-holding original-state pillar collecting device
Technical field
The invention belongs to the drilling technology field, is a kind of hand-holding original-state pillar collecting device, is used for gathering the soil analysis sample, and soil is observed and described sample and gather soil column sample, is suitable for the teaching relevant with soil, scientific research and production division.
Background technology
In the prior art, press the sampling mode difference, geotome has following three types: direct press type, spiral and hammering adding pressure type.The earth boring auger of which kind of type all is to utilize the effect of external force to make drill body enter the soil body, reaches the purpose that fetches earth.As long as rational in infrastructure, working as of sampling method can be got comparatively ideal undisturbed soil sample.But, no matter be direct press type, drill body still rotary or that paddle type mill bores is on the brill barrel opens an opening that differs in size, in order to take out the undisturbed soil of gathering, this way of taking out undisturbed soil from the side comparatively is easy to realize the soil of consolidation for quality, but for the loose soil of quality, be difficult to obtain desirable undisturbed soil, let alone get the deep layer undisturbed soil sample, and collector opening part soil was subject to extraneous soil pollution when undisturbed soil was gathered, and destroyed some features of original soil.Can gather desirable undisturbed soil sample for can be truly most important in situations such as the characteristic of desk research field soil, simulation field material migrations.And these all are the present difficult problems that native device cann't be solved of adopting, and are perplexing researcher.
Summary of the invention
In order to solve the technical matters of above-mentioned existence, the invention provides a kind of hand-holding original-state pillar collecting device.The present invention not only can obtain desirable undisturbed soil sample, also can obtain the deep layer undisturbed soil sample.
Technical scheme of the present invention is:
The present invention includes and bore tube, base, Connection Block and drilling rod, Connection Block and base are installed in respectively and bore the tube two ends, and drilling rod links to each other with Connection Block.
Described brill tube comprises interconnective adapter sleeve and cylindrical shell, the radius of adapter sleeve is greater than the cylindrical shell radius, on the same axis of adapter sleeve, have two through holes, cylindrical shell is two tubulars that the semicircular cylinder with groove is interlocked and forms, lower limb at cylindrical shell is a cutting edge, and the cylindrical shell upper edge circumference above cutting edge has groove.
Described base is to be the cylinder of the following end closure that matches with brill tube external diameter, and the bottom of cylinder is provided with a pipe.Described Connection Block is connecting link to be installed constitute on disk, has on the disk and bores the hole that an adapter sleeve is identical and the position is corresponding, the structure of the termination of connecting link for matching with drilling rod.Described drilling rod is a T font structure, and the lower end of T font structure is the structure that matches with the connecting link end of Connection Block.The structure that described connecting link matches with drilling rod: the link of one of connecting link and drilling rod is a half-round bar, has pin hole on it, and the half-round bar of the link of another bar for matching with it has the pin that matches with pin hole on it.
The present invention also is equipped with extension rod between the connecting link of Connection Block and drilling rod.Described extension rod two ends are respectively and the connecting link termination of Connection Block and the structure that matches with termination, drilling rod lower end, have the sleeve that connects the termination in order to fixing extension rod on it.
Brill tube of the present invention is a plurality of, and is stacked mutually, connects base below stacked brill tube.
Advantage of the present invention is as follows:
The present invention bores tube and adopts short size, be advisable with 20~30cm, for the darker employing stratified sampling of sampling request, the original state soil body that the mutual stacked formation of drill body of stratified sampling soil sample requires will be housed during experimental study, like this when undisturbed soil is gathered, small and exquisite being easy to of volume carried, and both can gather soil column well, is convenient to the follow-up works such as original-pack earth pillar carrying that will gather again.
The present invention in use need not excavate soil profile, only with individual's operation, just can obtain to require degree of depth interior profile original-state soil sample like a cork.Because each soil layer of gathering is less, thereby be easy to manually-operated, and for the loose soil that is easy to disturbance of soil property, can directly will bore tube as container and the experimental provision of containing soil, be used for the follow-up work after undisturbed soil is gathered, become possibility thereby make, and be easy to realize the hard work when excavating soil profile when alleviating the field acquisition undisturbed soil sample greatly at the loose soil collection undisturbed soil sample of soil property.
Because brill tube of the present invention is to be lumped together by the groove Slide Group of two semicircles by mutual interlock, when gathering the pedotheque that compares consolidation, A, B two parts of cylindrical shell can be slided relatively, then A, B two parts are separated, obtain original-state soil sample preferably, when gathering loose pedotheque, we can directly study check as container to the character of undisturbed soil with boring tube, and soil need not be taken out, thereby avoid destruction to undisturbed soil sample.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is added with the structural representation of extension rod for the present invention.
Fig. 3 bores the barrel structure synoptic diagram for the present invention.
Fig. 4 is the schematic top plan view of Fig. 3.
Fig. 5 is a understructure synoptic diagram of the present invention.
Fig. 6 is a Connection Block structural representation of the present invention.
Fig. 7 is the left view of Fig. 7.
Fig. 8 is the perspective view of Connection Block of the present invention.
Fig. 9 is a jackrod structure synoptic diagram of the present invention.
Figure 10 is the right view of Fig. 9.
Figure 11 is an extension rod structural representation of the present invention.
Figure 12 is the right view of Figure 11.
Figure 13 is a plurality of brill tube of the present invention connection diagram.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Embodiment 1: as shown in Figure 1, the present invention includes and bore tube 2, base 1, Connection Block 3 and drilling rod 4, Connection Block 3 and base 1 are installed in respectively and bore tube 4 two ends, and drilling rod 4 links to each other with Connection Block 3.
As Fig. 3~shown in Figure 5, described brill tube 2 comprises interconnective adapter sleeve 5 and cylindrical shell 6, and the radius of adapter sleeve 5 has two through holes 7 greater than boring a tube cylindrical shell 6 in same axis, adapter sleeve 6 upper edges, in order to fixing tube 2 and the Connection Block 2 of boring; Cylindrical shell 6 be the semicircle of two mutual interlocks form cylindric, be cutting edge at the lower edge that bores tube 2, cutting soil when gathering the original state pattern; Cylindrical shell 6 upper edge circumference above cutting edge have arc groove 8, and in order to placing the rubber ring match with cylindrical shell 6 models, this rubber ring is used for a plurality of 2 is tightly connected of boring when boring the large-scale soil column of the mutual stacked formation of tube.Cylindrical shell 6 is equal-sized two semicircles, adopts complemental groove to be interlocked between two semicircles, uses the time delay groove to slide two parts are lumped together complete brill tube of formation, at ordinary times two parts is separately reduced the space station and uses.
As shown in Figure 6, base 1 is the cylinder of a following end closure that matches with brill tube cylindrical shell 6 external diameters, and the bottom disc 9 of cylinder is provided with a pipe 10.The aperture of pipe 10 is 1-2cm, and the pipe of length 3-4cm connects the material that drenches when doing researchs such as soil body material migration.
As Fig. 7~shown in Figure 9, Connection Block 3 is connecting link 11 to be installed constitute on disk 12, has through hole 13 identical with the adapter sleeve 5 that bores tube 1 and that the position is corresponding on the disk 120, the structure of the termination of connecting link 11 for matching with drilling rod 4.Figure 10, shown in Figure 11, described drilling rod 4 is a T font structure, and the lower end of T font structure is the structure that matches with connecting link 11 ends of Connection Block 3, and the handle that the undisturbed soil device enters soil is gathered for rotating or advancing in T font structure upper end.Described connecting link 11 with the structure that drilling rod 4 matches is: the link of one of connecting link 11 and drilling rod 4 is a half-round bar, has pin hole 14 on it, and the half-round bar of the link of another bar for matching with it has the pin 15 that matches with pin hole 14 on it.
The pin of Connection Block 3 of the present invention adopts the hollow steel pipe with hole, even sampling also can collect satisfied original-pack pedotheque in the paddy field, and the influence of surface water body to the undisturbed soil collection is minimized.
The present invention bores tube 2 and after Connection Block 3 was connected, the hollow pin porose with tube wall was joined together to form the earth boring auger main body when mounted, drilling rod 4 and Connection Block 3 are fixed by pin, and sleeve pipe 18 slided into the pin junction, and connecting portion is locked, use for gathering undisturbed soil.
Embodiment 2: as shown in Figure 2, this example comprises bores tube 2, base 1, Connection Block 3 and drilling rod 4, and Connection Block 3 and base 1 are installed in respectively and bore tube 4 two ends, and drilling rod 4 links to each other with Connection Block 3, between the connecting link 11 of Connection Block 3 and drilling rod 4 extension rod 16 is installed also.
As shown in Figure 12 and Figure 13, described extension rod 16 two ends are respectively and connecting link 11 terminations of Connection Block 3 and the structure that matches with termination, drilling rod 4 lower end, have the sleeve 17 that is connected the termination in order to fixing extension rod 16 with connecting link 11, drilling rod 4 or other extension rods on it.As shown in Figure 2, for boring be linked in sequence together synoptic diagram of tube 2, Connection Block 3, drilling rod 4 and extension rod 16, according to the sampling depth of soil sample, look actual conditions and add extension rod 16, install and fixedly the method for extension rod 16 is identical with the method for jointed rod 4 and Connection Block 3.
As shown in figure 13, the brill tube 2 in this example stacks together mutually and forms a bigger soil column, bores 2 in tube and passes through the groove 8 of its lower end and go up the rubber ring of installing to connect.Mounting seat 1 on bottom the brill tube 2 after stacked.
The two parts that bore tube 2 by groove be slidingly connected form complete brill tube together after, link together with Connection Block 3 and be fixed together and form the main body of earth boring auger with the porose hollow pin of tube wall, drilling rod 4 and Connection Block 3 are fixed by pin, and sleeve pipe 18 slided into the pin junction, connecting portion is locked, use for gathering undisturbed soil.
Concrete parameter of the present invention is decided according to the size of device, can suitably adjust according to the specific requirement of practical operation, and the present invention bores the diameter of tube 2 and suitably adjusts according to scientific research or teaching needs, and the rubber ring of sealing usefulness disposes voluntarily according to a brill tube external diameter and gets final product.The height at base 1 edge is being advisable with intact cooperation of O-ring seal.

Claims (9)

1. hand-holding original-state pillar collecting device is characterized in that: comprise and bore tube, base, Connection Block and drilling rod, Connection Block and base are installed in respectively and bore a two ends, and drilling rod links to each other with Connection Block.
2. according to claims 1 described hand-holding original-state pillar collecting device, it is characterized in that: described brill tube comprises interconnective adapter sleeve and cylindrical shell, the radius of adapter sleeve is greater than the cylindrical shell radius, on the same axis of adapter sleeve, have two through holes, cylindrical shell is two tubulars that the semicircular cylinder with groove is interlocked and forms, lower limb at cylindrical shell is a cutting edge, and the cylindrical shell upper edge circumference above cutting edge has groove.
3. according to claims 1 described hand-holding original-state pillar collecting device, it is characterized in that: described base is to be the cylinder of the following end closure that matches with brill tube external diameter, and the bottom of cylinder is provided with a pipe.
4. according to claims 1 described hand-holding original-state pillar collecting device, it is characterized in that: described Connection Block is connecting link to be installed constitute on disk, have on the disk and bore the hole that an adapter sleeve is identical and the position is corresponding, the structure of the termination of connecting link for matching with drilling rod.
5. according to claims 1 described hand-holding original-state pillar collecting device, it is characterized in that: described drilling rod is a T font structure, and the lower end of T font structure is the structure that matches with the connecting link end of Connection Block.
6. according to claims 4 or 5 described hand-holding original-state pillar collecting devices, it is characterized in that: the structure that described connecting link matches with drilling rod: the link of one of connecting link and drilling rod is a half-round bar, have pin hole on it, the half-round bar of the link of another bar for matching with it has the pin that matches with pin hole on it.
7. according to claims 1 described hand-holding original-state pillar collecting device, it is characterized in that: between the connecting link of Connection Block and drilling rod, extension rod is installed also.
8. according to claims 1 described hand-holding original-state pillar collecting device, it is characterized in that: described extension rod two ends are respectively and the connecting link termination of Connection Block and the structure that matches with termination, drilling rod lower end, have the sleeve that connects the termination in order to fixing extension rod on it.
9. according to claims 1 described hand-holding original-state pillar collecting device, it is characterized in that: described brill tube connects base for a plurality of, stacked mutually below stacked brill tube.
CN 200810229971 2008-12-19 2008-12-19 Hand-holding original-state pillar collecting device Pending CN101750234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200810229971 CN101750234A (en) 2008-12-19 2008-12-19 Hand-holding original-state pillar collecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200810229971 CN101750234A (en) 2008-12-19 2008-12-19 Hand-holding original-state pillar collecting device

Publications (1)

Publication Number Publication Date
CN101750234A true CN101750234A (en) 2010-06-23

Family

ID=42477534

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200810229971 Pending CN101750234A (en) 2008-12-19 2008-12-19 Hand-holding original-state pillar collecting device

Country Status (1)

Country Link
CN (1) CN101750234A (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936823A (en) * 2010-09-26 2011-01-05 西安建筑科技大学 Method for sampling large-sized unsaturated structural undisturbed soil samples
CN102230930A (en) * 2011-03-29 2011-11-02 中国科学院南京土壤研究所 Field experiment simulation system and manufacture method thereof
CN102353557A (en) * 2011-09-22 2012-02-15 中国科学院东北地理与农业生态研究所 Cylindrical soil layering apparatus
CN102749218A (en) * 2012-06-28 2012-10-24 苏州国环环境检测有限公司 Wetland soil sampling device
CN103115796A (en) * 2013-01-25 2013-05-22 北京林业大学 Device for conveniently and reliably taking undisturbed soil
CN103217315A (en) * 2013-04-28 2013-07-24 北京林业大学 Foot extracting device for sand
CN103234775A (en) * 2013-04-01 2013-08-07 中国科学院东北地理与农业生态研究所 Completely split type rapid ecological soil sampler
CN103323290A (en) * 2013-05-14 2013-09-25 北京建工环境修复有限责任公司 Sampler for sediment pore water sampling in rivers or lakes
CN103323285A (en) * 2013-05-14 2013-09-25 北京建工环境修复有限责任公司 Freezing sampler for sediments in different depth of rivers or lakes
CN103335862A (en) * 2013-07-11 2013-10-02 中国水利水电科学研究院 Split type soil bulk density sampler
CN103630420A (en) * 2013-11-21 2014-03-12 长安大学 Undisturbed soil collecting device and collection method thereof
CN104075908A (en) * 2014-06-19 2014-10-01 浙江大学 Internal-combustion circumferential-vibration soil sampler convenient to assemble and disassemble and soil sampling method thereof
CN104406815A (en) * 2014-12-17 2015-03-11 光明乳业股份有限公司 Simple cheese sampling device
CN104990759A (en) * 2015-01-29 2015-10-21 江西省地质矿产勘查开发局赣南地质调查大队 Manpower impact sampling drill and applications thereof
CN105651545A (en) * 2015-12-24 2016-06-08 辽宁省水文局 Soil sampling equipment for drilling standard volume of undisturbed soil
CN106248421A (en) * 2016-07-15 2016-12-21 中国人民解放军西部战区空军勘察设计院 The sampling method of the complete severely-weathered red beds sandstone original state sample of large scale
CN107202712A (en) * 2017-07-06 2017-09-26 山东理工大学 A kind of new soil sampler
CN107589033A (en) * 2017-10-23 2018-01-16 安徽师范大学 A kind of soil sample collector and its soil basketing method for gathering the measure section soil weight
CN107907366A (en) * 2017-12-28 2018-04-13 长安大学 A kind of undisturbed soil soil test standard soil body sample preparation facilities
CN110082147A (en) * 2019-05-07 2019-08-02 无锡商业职业技术学院 A kind of shallow-layer soil sampler drill bit and its soil basketing method
CN113711729A (en) * 2021-09-02 2021-11-30 广西华蓝岩土工程有限公司 Rotary soil digging device
CN114112508A (en) * 2021-12-15 2022-03-01 南京工业大学 Soil sampler directly used for dynamic characteristic test of undisturbed soil sample
CN114323765A (en) * 2022-01-11 2022-04-12 北京中兴恒工程咨询有限公司 Soil analysis sampling device
NL2031998A (en) 2021-08-31 2023-03-09 Institute Of Water Resources For Pastoral Area Mini Of Water Resources Parent soil collecting instrument capable of maintaining root soil composite structure system integrity

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936823A (en) * 2010-09-26 2011-01-05 西安建筑科技大学 Method for sampling large-sized unsaturated structural undisturbed soil samples
CN102230930B (en) * 2011-03-29 2014-03-19 中国科学院南京土壤研究所 Manufacture method of field experiment simulation system
CN102230930A (en) * 2011-03-29 2011-11-02 中国科学院南京土壤研究所 Field experiment simulation system and manufacture method thereof
CN102353557A (en) * 2011-09-22 2012-02-15 中国科学院东北地理与农业生态研究所 Cylindrical soil layering apparatus
CN102749218A (en) * 2012-06-28 2012-10-24 苏州国环环境检测有限公司 Wetland soil sampling device
CN103115796A (en) * 2013-01-25 2013-05-22 北京林业大学 Device for conveniently and reliably taking undisturbed soil
CN103234775A (en) * 2013-04-01 2013-08-07 中国科学院东北地理与农业生态研究所 Completely split type rapid ecological soil sampler
CN103217315A (en) * 2013-04-28 2013-07-24 北京林业大学 Foot extracting device for sand
CN103323285A (en) * 2013-05-14 2013-09-25 北京建工环境修复有限责任公司 Freezing sampler for sediments in different depth of rivers or lakes
CN103323290A (en) * 2013-05-14 2013-09-25 北京建工环境修复有限责任公司 Sampler for sediment pore water sampling in rivers or lakes
CN103335862A (en) * 2013-07-11 2013-10-02 中国水利水电科学研究院 Split type soil bulk density sampler
CN103630420A (en) * 2013-11-21 2014-03-12 长安大学 Undisturbed soil collecting device and collection method thereof
CN104075908B (en) * 2014-06-19 2016-08-24 浙江大学 Internal combustion circular vibration just reassembling type soil sampler and method thereof
CN104075908A (en) * 2014-06-19 2014-10-01 浙江大学 Internal-combustion circumferential-vibration soil sampler convenient to assemble and disassemble and soil sampling method thereof
CN104406815A (en) * 2014-12-17 2015-03-11 光明乳业股份有限公司 Simple cheese sampling device
CN104406815B (en) * 2014-12-17 2017-01-04 光明乳业股份有限公司 Easy cheese sampling equipment
CN104990759A (en) * 2015-01-29 2015-10-21 江西省地质矿产勘查开发局赣南地质调查大队 Manpower impact sampling drill and applications thereof
CN105651545A (en) * 2015-12-24 2016-06-08 辽宁省水文局 Soil sampling equipment for drilling standard volume of undisturbed soil
CN106248421A (en) * 2016-07-15 2016-12-21 中国人民解放军西部战区空军勘察设计院 The sampling method of the complete severely-weathered red beds sandstone original state sample of large scale
CN107202712A (en) * 2017-07-06 2017-09-26 山东理工大学 A kind of new soil sampler
CN107589033A (en) * 2017-10-23 2018-01-16 安徽师范大学 A kind of soil sample collector and its soil basketing method for gathering the measure section soil weight
CN107907366A (en) * 2017-12-28 2018-04-13 长安大学 A kind of undisturbed soil soil test standard soil body sample preparation facilities
CN110082147A (en) * 2019-05-07 2019-08-02 无锡商业职业技术学院 A kind of shallow-layer soil sampler drill bit and its soil basketing method
NL2031998A (en) 2021-08-31 2023-03-09 Institute Of Water Resources For Pastoral Area Mini Of Water Resources Parent soil collecting instrument capable of maintaining root soil composite structure system integrity
CN113711729A (en) * 2021-09-02 2021-11-30 广西华蓝岩土工程有限公司 Rotary soil digging device
CN113711729B (en) * 2021-09-02 2022-11-18 广西华蓝岩土工程有限公司 Rotary soil digging device
CN114112508A (en) * 2021-12-15 2022-03-01 南京工业大学 Soil sampler directly used for dynamic characteristic test of undisturbed soil sample
CN114323765A (en) * 2022-01-11 2022-04-12 北京中兴恒工程咨询有限公司 Soil analysis sampling device

Similar Documents

Publication Publication Date Title
CN101750234A (en) Hand-holding original-state pillar collecting device
CN202869848U (en) Undisturbed soil column collector
CN103364222B (en) A kind of combined type soil sampler realizing stratified sampling
CN201945469U (en) Split cutting ring soil sampler
CN201310302Y (en) Undisturbed soil column collecting combination unit
CN209707157U (en) A kind of geologic prospect engineering is with taking soil device
CN102692340A (en) Multi-depth rotating-wheel closed sampler and method thereof
CN201408129Y (en) Soil sampling device on basis of pile driver
CN209198111U (en) A kind of geological prospecting sampler
CN104535358A (en) Soil profile sampler
CN205941051U (en) Ground sampling device among geotechnical engineering
CN212272022U (en) Survey drilling equipment for coal mine geological engineering
CN116358926B (en) Engineering geological survey sample sampling device and sampling method
CN110159264A (en) A kind of hard rock soil layer chisel bit used for geological prospecting
CN104612676B (en) Multifunctional drill bit for tailing drilling
CN217359072U (en) Engineering investigation broken rock coring equipment
CN215115292U (en) Sampling and excavating device for geological exploration
CN215726953U (en) Ecological environment geological survey sampling device
CN213239535U (en) Mechanical separation ground device that civil engineering sampling was used
CN209945758U (en) Drilling and soil taking equipment for soil detection
CN205936595U (en) Geological engineering sampler
CN211904706U (en) Sampling device for rock and soil investigation
CN204419178U (en) Mine tailing probing Multifunctional drill
CN209163745U (en) One kind being used for engineering geologic investigation drilling equipment
CN107939281B (en) Rock stratum drilling positioning device for geological exploration

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20100623