CN112731554A - Measuring device for geothermal exploration - Google Patents
Measuring device for geothermal exploration Download PDFInfo
- Publication number
- CN112731554A CN112731554A CN202011627905.3A CN202011627905A CN112731554A CN 112731554 A CN112731554 A CN 112731554A CN 202011627905 A CN202011627905 A CN 202011627905A CN 112731554 A CN112731554 A CN 112731554A
- Authority
- CN
- China
- Prior art keywords
- measuring device
- welding
- geothermal exploration
- worm
- metal ball
- 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
Links
- 239000002184 metal Substances 0.000 claims abstract description 35
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 14
- 238000004021 metal welding Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000011324 bead Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
- G01V9/005—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 by thermal methods, e.g. after generation of heat by chemical reactions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to the technical field of geological exploration, in particular to a measuring device for geothermal exploration, which comprises a base, wherein an upright post is welded at the top of the base, a movable post is connected to the inner cavity of the upright post in a sliding manner, and the top end of the movable post penetrates through the upright post and extends to the outside to be welded with a platform; the invention achieves the advantages of high horizontal adjustment precision and capability of shading measurement by arranging the base, the upright post, the movable post, the platform, the vertical plate, the connecting rod, the metal ring, the metal ball, the counterweight rod, the counterweight block, the short rod, the mounting plate and the measuring equipment, and solves the problem that the existing measuring device cannot ensure that the measuring device is in a real horizontal state due to the mode that the levelness is adjusted by manually adjusting the angle of the bracket, so that the measuring precision is influenced, and a shading component is lacked, so that workers are easily interfered by strong light when in use, and the measuring work is influenced.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a measuring device for geothermal exploration.
Background
The geothermal water is underground water with the temperature higher than the surrounding rock temperature of the observation depth, the temperature at which the water starts to boil under certain pressure is called saturation temperature, and the larger the buried depth of the geothermal water is, the higher the static pressure is, and the higher the corresponding saturation temperature is.
In the process of geothermal exploration, a measuring device is needed to measure an exploration area, and the traditional measuring device has the following defects: 1. the existing measuring device lacks an active horizontal adjustment component, the main adjustment mode is that the levelness is adjusted by manually adjusting the angle of a bracket, and the mode cannot ensure that the measuring device is in a real horizontal state, so that the measuring accuracy is influenced; 2. the existing measuring device is lack of a shading component, so that workers are easily interfered by strong light when using the existing measuring device, and measuring work is influenced.
Disclosure of Invention
The invention aims to provide a measuring device for geothermal exploration, which has the advantages of high horizontal adjustment precision and capability of shading measurement, and solves the problems that the existing measuring device adjusts the levelness by manually adjusting the angle of a bracket, the measuring device cannot be ensured to be in a real horizontal state in the mode, so that the measurement precision is influenced, and workers are easily interfered by strong light due to lack of shading components, so that the measurement work is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a measuring device for geothermal exploration, includes the base, the top welding of base has the stand, the inner chamber sliding connection of stand has movable post, the top of activity post runs through the stand and extends to the outside welding and has the platform, the riser has all been welded to both sides around the platform top, the inboard welding of riser has the connecting rod, the one end welding that the riser was kept away from to the connecting rod has the becket, the inner chamber roll connection of becket has the metal ball, the bottom welding of metal ball has the counterweight beam, the bottom welding of counterweight beam has the balancing weight, the top welding of metal ball has the quarter butt, the top welding of quarter butt has the mounting panel, the top fixed mounting of mounting panel has measuring equipment, and is positive the top of riser articulates there is the light screen.
Preferably, one side of the vertical plate is obliquely arranged, and the length of the light screen is the same as that of the top of the vertical plate.
Preferably, the inner wall of becket inlays and is equipped with spacing pearl, spacing pearl is rolling connection with the inner wall of becket, the surface and the metal ball contact of spacing pearl.
Preferably, one side of the metal ring is in threaded connection with a positioning wire, and one end of the positioning wire penetrates through the positioning wire and is in contact with the surface of the metal ball.
Preferably, the length of the counterweight block is greater than that of the short rod, and the counterweight block is arranged in a cube shape.
Preferably, the bottom bearing support of stand inner chamber has the lead screw, the top of lead screw runs through movable post and extends to its inner chamber, the surface of lead screw and the inner wall threaded connection of movable post, the skin weld of lead screw has the worm wheel, one side of worm wheel runs through the stand and extends to outside meshing and has the worm.
Preferably, a protective shell is welded on one side of the upright column, the back face of the worm is supported by an inner wall bearing of the protective shell, and the front face of the worm penetrates through the protective shell and extends to the outside of the protective shell.
Preferably, the front surface of the worm is welded with a crank, and the surface of the crank is arranged in an anti-skid manner.
Preferably, the back welding of light screen has the pothook, the back of riser articulates there is the snap ring, pothook and snap ring joint.
Preferably, the four corners of the bottom of the base are fixedly provided with universal wheels, and one side of each universal wheel is hinged with a locking device.
Compared with the prior art, the invention has the following beneficial effects:
the invention achieves the advantages of high horizontal adjustment precision and capability of shading measurement by arranging the base, the upright post, the movable post, the platform, the vertical plate, the connecting rod, the metal ring, the metal ball, the counterweight rod, the counterweight block, the short rod, the mounting plate and the measuring equipment, and solves the problem that the existing measuring device cannot ensure that the measuring device is in a real horizontal state due to the mode that the levelness is adjusted by manually adjusting the angle of the bracket, so that the measuring precision is influenced, and a shading component is lacked, so that workers are easily interfered by strong light when in use, and the measuring work is influenced.
According to the invention, one side of the vertical plate is obliquely arranged, so that the light screen can extend out for a certain length, and the light shading effect is better, the metal ball can be further limited when rotating through the arrangement of the limiting beads, and the metal ball is prevented from being displaced to influence the accuracy of horizontal adjustment, the metal ball can be locked after the horizontal adjustment is finished through the arrangement of the positioning wires, the measuring operation is prevented from being influenced by the shaking of measuring equipment in the measuring process, the length of the counterweight rod is greater than that of the short rod, the counterweight effect of the counterweight block can be improved, the acting force generated by the counterweight block can be far greater than the gravity of the measuring equipment, and the accuracy of the horizontal adjustment is improved.
According to the invention, through the arrangement of the screw rod, the worm and the worm wheel, the movable column can have a lifting function, so that the height of the measuring equipment can be conveniently adjusted, the measuring equipment can reach the optimal measuring height, the worm and the worm wheel can be protected through the arrangement of the protective shell, dust is prevented from entering the movable column, a user can conveniently shake the worm through the arrangement of the crank, so that the height of the movable column can be adjusted, the light screen can be conveniently connected with the vertical plate through the arrangement of the clamping ring and the clamping hook, the light screen is in a foldable design, the measuring equipment can be conveniently installed on the installation plate by the user, and the device can have a moving function through the arrangement of the universal wheel, so that convenience is provided for moving and carrying of the equipment.
Drawings
FIG. 1 is a schematic view of the inventive structure;
FIG. 2 is a left side view of the inventive patent platform;
FIG. 3 is a partial sectional front view of the metal ring of the present invention;
FIG. 4 is a partial top sectional view of the metallic ring of the present invention;
FIG. 5 is a partial front sectional view of a patent stud according to the present invention;
fig. 6 is a partial top view of the worm wheel and worm of the present invention.
In the figure: 1. a base; 2. a column; 3. a movable post; 4. a platform; 5. a vertical plate; 6. a connecting rod; 7. a metal ring; 8. a metal ball; 9. a weight lever; 10. a balancing weight; 11. a short bar; 12. mounting a plate; 13. a measuring device; 14. a visor; 15. a limiting bead; 16. positioning wires; 17. a screw rod; 18. a worm gear; 19. a worm; 20. a protective shell; 21. a hook; 22. a snap ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the patent of the invention without any inventive work belong to the protection scope of the patent of the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-6, a measuring device for geothermal exploration comprises a base 1, wherein a stand column 2 is welded at the top of the base 1, a movable column 3 is slidably connected to an inner cavity of the stand column 2, the top end of the movable column 3 penetrates through the stand column 2 and extends to the outside, a platform 4 is welded to the outside, vertical plates 5 are welded to the front side and the back side of the top of the platform 4, a connecting rod 6 is welded to the inner side of each vertical plate 5, a metal ring 7 is welded to one end, away from each vertical plate 5, of the connecting rod 6, a metal ball 8 is connected to the inner cavity of the metal ring 7 in a rolling manner, a balance weight rod 9 is welded to the bottom of the metal ball 8, a balance weight 10 is welded to the bottom end of the balance weight 9, a short rod 11 is welded to the top of the metal ball 8, a mounting plate 12 is welded to the, Platform 4, riser 5, connecting rod 6, becket 7, metal ball 8, counterweight rod 9, the balancing weight 10, quarter butt 11, mounting panel 12 and measuring equipment 13's setting, it is high and can carry out the shading and measure the advantage to have reached the horizontal adjustment precision, the angle of having solved current measuring device for artifical adjustment support simultaneously adjusts the levelness, measuring device is in real horizontality can't be ensured to this kind of mode, thereby influence measurement accuracy nature, and still lack the shading subassembly, lead to the workman to be disturbed by the highlight easily when using, thereby influence the problem of measurement.
Specifically, one side of the vertical plate 5 is obliquely arranged, and the length of the light screen 14 is the same as that of the top of the vertical plate 5.
In this embodiment, one side of the vertical plate 5 is inclined, so that the light shielding plate 14 can extend by a certain length, and the light shielding effect is better.
Specifically, the inner wall of the metal ring 7 is embedded with a limiting bead 15, the limiting bead 15 is in rolling connection with the inner wall of the metal ring 7, and the surface of the limiting bead 15 is in contact with the metal ball 8.
In this embodiment, through the setting of spacing pearl 15, can be when metal ball 8 rotates, further restrict it to prevent that it from producing the precision that the displacement influences the level adjustment.
Specifically, one side of the metal ring 7 is in threaded connection with a positioning wire 16, and one end of the positioning wire 16 penetrates through the positioning wire 16 and is in contact with the surface of the metal ball 8.
In this embodiment, through the setting of locating wire 16, can carry out the locking to metal ball 8 after the levelness adjustment is accomplished, avoid producing at measuring in-process measuring equipment 13 and rock the influence and measure the operation.
Specifically, the length of the weight rod 9 is greater than that of the short rod 11, and the counterweight 10 is a cube.
In this embodiment, the length of counterweight rod 9 is greater than the length of quarter butt 11, can promote the counter weight effect of balancing weight 10, and the effort that makes balancing weight 10 produce can be greater than measuring equipment 13's gravity far away to increase the accuracy of levelness adjustment.
Specifically, a screw rod 17 is supported by a bearing at the bottom of an inner cavity of the upright column 2, the top end of the screw rod 17 penetrates through the movable column 3 and extends to the inner cavity of the movable column 3, the surface of the screw rod 17 is in threaded connection with the inner wall of the movable column 3, a worm wheel 18 is welded on the surface of the screw rod 17, and one side of the worm wheel 18 penetrates through the upright column 2 and extends to the outside to be meshed with a worm 19.
In this embodiment, the screw 17, the worm 19 and the worm wheel 18 are arranged, so that the movable column 3 has a lifting function, and the height of the measuring device 13 can be adjusted conveniently, so that the measuring device 13 can reach an optimal measuring height.
Specifically, a protective shell 20 is welded on one side of the upright post 2, the back surface of the worm 19 is supported by an inner wall bearing of the protective shell 20, and the front surface of the worm 19 penetrates through the protective shell 20 and extends to the outside of the protective shell 20.
In this embodiment, the worm 19 and the worm wheel 18 can be protected by the protective case 20, so that dust can be prevented from entering the protective case.
Specifically, the front surface of the worm 19 is welded with a crank, and the surface of the crank is arranged in an anti-slip manner.
In this embodiment, the setting of the crank enables the user to conveniently shake the worm 19, thereby adjusting the height of the movable column 3.
Specifically, a clamping hook 21 is welded on the back of the shading plate 14, a clamping ring 22 is hinged on the back of the back vertical plate 5, and the clamping hook 21 is clamped with the clamping ring 22.
In this embodiment, through the setting of snap ring 22 and pothook 21, can conveniently be connected light screen 14 and riser 5 to light screen 14 is for turning over the design of rolling over, can the person of facilitating the use install measuring equipment 13 on mounting panel 12.
Specifically, the four corners of the bottom of the base 1 are fixedly provided with universal wheels, and one side of each universal wheel is hinged with a locking device.
In this embodiment, through the setting of universal wheel, can make the device possess the function of removal, provide convenience for the removal and the transport of equipment.
The working principle is as follows: firstly, after a user moves the device to a measurement area, a light screen 14 is opened, a measurement device 13 is installed on an installation plate 12, then a positioning wire 16 is screwed to separate the positioning wire from a metal ball 8, at the moment, a counterweight block 10 can drive a counterweight rod 9 to be always vertical to the ground under the action of gravity, even if a platform 4 is inclined, the counterweight rod 9 is vertical to the ground under the action of gravity, the length of the counterweight rod 9 is greater than that of a short rod 11, so that the acting force generated by the counterweight block 10 can be far greater than that of the measurement device 13, and the short rod 11 is positioned above the metal ball 8, therefore, when the counterweight rod 9 is vertical to the ground, the short rod 11 is also vertical to the ground, at the moment, the installation plate 12 and the measurement device 13 are in a parallel state with the ground, so that no deviation is caused to the measurement result, and after the measurement device 13 adjusts the levelness, the positioning wire 16 is screwed again to lock the metal ball 8, so as to prevent the metal ball from shaking during measurement, and the light shielding plate 14 is covered on the top of the measuring equipment 13, so as to shield the user from light.
Although embodiments of the present patent have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present patent, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a measuring device for geothermal exploration, includes base (1), its characterized in that: the top welding of base (1) has stand (2), the inner chamber sliding connection of stand (2) has movable post (3), the top of movable post (3) runs through stand (2) and extends to the external welding and has platform (4), riser (5) have all been welded to both sides around platform (4) top, the inboard welding of riser (5) has connecting rod (6), the one end welding that riser (5) were kept away from in connecting rod (6) has becket (7), the inner chamber roll connection of becket (7) has metal ball (8), the bottom welding of metal ball (8) has counterweight (9), the bottom welding of counterweight (9) has counterweight (10), the top welding of metal ball (8) has quarter butt (11), the top mounting panel welding of quarter butt (11) has (12), the top fixed mounting of mounting panel (12) has measuring equipment (13), the top of the vertical plate (5) on the front side is hinged with a shading plate (14).
2. A measuring device for geothermal exploration, according to claim 1, characterized in that: one side of the vertical plate (5) is obliquely arranged, and the length of the light screen (14) is the same as that of the top of the vertical plate (5).
3. A measuring device for geothermal exploration, according to claim 1, characterized in that: the inner wall of becket (7) inlays and is equipped with spacing pearl (15), the inner wall of spacing pearl (15) and becket (7) is roll connection, the surface and the metal ball (8) contact of spacing pearl (15).
4. A measuring device for geothermal exploration, according to claim 1, characterized in that: one side of the metal ring (7) is in threaded connection with a positioning wire (16), and one end of the positioning wire (16) penetrates through the positioning wire (16) and is in contact with the surface of the metal ball (8).
5. A measuring device for geothermal exploration, according to claim 1, characterized in that: the length of counter weight pole (9) is greater than the length of quarter butt (11), balancing weight (10) are the square setting.
6. A measuring device for geothermal exploration, according to claim 1, characterized in that: the bottom bearing support of stand (2) inner chamber has lead screw (17), the top of lead screw (17) runs through movable post (3) and extends to its inner chamber, the surface of lead screw (17) and the inner wall threaded connection of movable post (3), the skin weld of lead screw (17) has worm wheel (18), one side of worm wheel (18) runs through stand (2) and extends to outside meshing has worm (19).
7. A measuring device for geothermal exploration, according to claim 6, characterized in that: the protective shell (20) is welded on one side of the upright post (2), the back of the worm (19) is supported by the inner wall bearing of the protective shell (20), and the front of the worm (19) penetrates through the protective shell (20) and extends to the outside of the protective shell.
8. A measuring device for geothermal exploration, according to claim 6, characterized in that: the front surface of the worm (19) is welded with a crank, and the surface of the crank is arranged in an anti-skid manner.
9. A measuring device for geothermal exploration, according to claim 1, characterized in that: the back welding of light screen (14) has pothook (21), the back of riser (5) articulates there is snap ring (22), pothook (21) and snap ring (22) joint.
10. A measuring device for geothermal exploration, according to claim 1, characterized in that: the four corners of the bottom of the base (1) are fixedly provided with universal wheels, and one side of each universal wheel is hinged with a locking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011627905.3A CN112731554A (en) | 2020-12-30 | 2020-12-30 | Measuring device for geothermal exploration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011627905.3A CN112731554A (en) | 2020-12-30 | 2020-12-30 | Measuring device for geothermal exploration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112731554A true CN112731554A (en) | 2021-04-30 |
Family
ID=75608107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011627905.3A Pending CN112731554A (en) | 2020-12-30 | 2020-12-30 | Measuring device for geothermal exploration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112731554A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206818212U (en) * | 2017-04-13 | 2017-12-29 | 辽宁有色地质地理信息研究院 | A kind of surveying instrument supporting frame |
| CN210920801U (en) * | 2019-11-25 | 2020-07-03 | 宗秀梅 | Mapping device for construction engineering site |
| CN211042245U (en) * | 2019-11-13 | 2020-07-17 | 吉林建筑科技学院 | Centering rod for surveying and mapping |
| CN211696329U (en) * | 2020-04-22 | 2020-10-16 | 张婷 | Area measuring instrument for land planning design |
| CN212156484U (en) * | 2020-04-16 | 2020-12-15 | 四川中恩岩土工程有限公司 | Engineering is telescopic bracket structure for level gauge |
-
2020
- 2020-12-30 CN CN202011627905.3A patent/CN112731554A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206818212U (en) * | 2017-04-13 | 2017-12-29 | 辽宁有色地质地理信息研究院 | A kind of surveying instrument supporting frame |
| CN211042245U (en) * | 2019-11-13 | 2020-07-17 | 吉林建筑科技学院 | Centering rod for surveying and mapping |
| CN210920801U (en) * | 2019-11-25 | 2020-07-03 | 宗秀梅 | Mapping device for construction engineering site |
| CN212156484U (en) * | 2020-04-16 | 2020-12-15 | 四川中恩岩土工程有限公司 | Engineering is telescopic bracket structure for level gauge |
| CN211696329U (en) * | 2020-04-22 | 2020-10-16 | 张婷 | Area measuring instrument for land planning design |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108613660B (en) | Tunnel real-time settlement observation device and method, real-time monitoring device and method | |
| CN110332436B (en) | Engineering mapping device convenient to remove | |
| CN208333468U (en) | For the support frame in tunnel top placement total station | |
| CN112731554A (en) | Measuring device for geothermal exploration | |
| CN210950614U (en) | Construction mapping device | |
| CN218094969U (en) | Perpendicular detection device of municipal administration road bridge engineering | |
| CN214198012U (en) | High slope deformation monitoring devices | |
| CN214427361U (en) | Foundation pile detects with ultrasonic detector's work frame | |
| CN214225160U (en) | Tripod for geological exploration | |
| CN213902422U (en) | A multi-purpose assistance-localization real-time support for architectural survey | |
| CN214198004U (en) | Auxiliary device for highway survey and measurement | |
| CN210462342U (en) | Surveying instrument support with it is multi-functional | |
| CN211574610U (en) | Fixing device for land surveying instrument with prevent wind function | |
| CN211234501U (en) | Supporting device for geological environment survey | |
| CN207379503U (en) | A kind of cadastration total powerstation | |
| CN212988413U (en) | Adjustable expansion device for road and bridge detection | |
| CN213087473U (en) | Foundation bolt positioning and leveling support | |
| CN214724010U (en) | Data acquisition device for structure monitoring | |
| CN215264069U (en) | Metal detector for deep mine prospecting metal with high precision | |
| CN215372098U (en) | Auxiliary device for underground pipeline detection | |
| CN211502167U (en) | Tunnel geological forecast testing platform | |
| CN210242778U (en) | Leveling rod convenient for adjusting verticality for field surveying and mapping | |
| CN221147598U (en) | Level gauge for power grid measurement | |
| CN212008980U (en) | Multifunctional metal detector for geological exploration | |
| CN217585788U (en) | Measuring equipment for geotechnical engineering investigation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |
|
| RJ01 | Rejection of invention patent application after publication |