CN112014541A - Detect sensor protection device of strip mine refuse dump deep ground moisture content - Google Patents
Detect sensor protection device of strip mine refuse dump deep ground moisture content Download PDFInfo
- Publication number
- CN112014541A CN112014541A CN201910468755.7A CN201910468755A CN112014541A CN 112014541 A CN112014541 A CN 112014541A CN 201910468755 A CN201910468755 A CN 201910468755A CN 112014541 A CN112014541 A CN 112014541A
- Authority
- CN
- China
- Prior art keywords
- protection device
- main body
- fixedly mounted
- sensor
- moisture content
- 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
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/246—Earth materials for water content
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Remote Sensing (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to the technical field of protection devices, in particular to a sensor protection device for detecting deep rock-soil water content of an open pit mine dumping site, which comprises a solar panel main body, a protection device main body and a balance seat, wherein two groups of wire columns are fixedly arranged in the middle of the lower end of the solar panel main body, wire grooves are formed in the middle of the inner parts of the wire columns, an upper cover is fixedly arranged at the lower ends of the wire columns, the protection device main body is fixedly arranged at the lower end of the upper cover, a probe protection sleeve is fixedly arranged at the lower end of the protection device main body, a water seepage groove is formed in the outer part of the probe protection sleeve, the balance seat is fixedly arranged at the outer part of the lower end. According to the invention, through the inclined-pulling reinforcing ribs, the balance seat and the probe protective sleeve, the stability of the protection device main body is improved, the protection device main body is prevented from inclining, and the stability of the probe is improved.
Description
Technical Field
The invention relates to the technical field of protection devices, in particular to a sensor protection device for detecting moisture content of deep rock soil of an open-pit mine dumping site.
Background
The soil water content sensor emits electromagnetic waves with a certain frequency, the electromagnetic waves are transmitted along the probe and return after reaching the bottom, the voltage output by the probe is detected, the change of the soil dielectric constant usually depends on the water content of the soil, and the water content of the soil can be calculated through the relation between the output voltage and the water content.
Because the sensor is located in the deep part of open pit dump ground, in order to avoid original components such as battery, telemetering measurement terminating machine, solar energy converter and wireless transceiver to receive the erosion of groundwater, the leakproofness of sensor protection device is especially important, need avoid the protection device slope, therefore needs a sensor protection device that detects open pit dump ground deep ground moisture content to make improvement to above-mentioned problem.
Disclosure of Invention
The invention aims to provide a sensor protection device for detecting the moisture content of deep rock soil of an open-pit mine dumping site, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a sensor protection device for detecting deep rock-soil moisture content of an open pit dumping field comprises a solar panel main body, a protection device main body and a balance seat, wherein two groups of wire columns are fixedly arranged in the middle of the lower end of the solar panel main body, wire grooves are formed in the middle of the inner part of each wire column, an upper cover is fixedly arranged at the lower end of each wire column, the protection device main body is fixedly arranged at the lower end of the upper cover, a probe protection sleeve is fixedly arranged at the lower end of the protection device main body, a water seepage groove is formed in the outer part of the probe protection sleeve, the balance seat is fixedly arranged at the outer part of the lower end of the protection device main body close to the probe protection sleeve, a plurality of groups of water seepage holes are formed in the upper end of the balance seat, oblique-pulling reinforcing ribs are fixedly arranged between the balance seat and, the solar energy remote sensing terminal is characterized in that a solar energy converter is fixedly mounted on the other side of the lower end of the storage battery, a wireless transceiver is fixedly mounted at the lower end of the solar energy converter, a shock absorption layer is fixedly mounted at the lower ends of the remote sensing terminal and the wireless transceiver, a sealing ring layer is arranged inside the shock absorption layer, a sensor body is fixedly mounted inside the sealing ring layer, a probe is fixedly mounted at the lower end of the sensor body, a lower sealing cover is fixedly mounted at the lower end of the shock absorption layer, and a fixing bolt is annularly.
Preferably, the wire column and the upper cover are connected by welding or cast.
Preferably, the inclined pulling reinforcing rib, the balance seat, the protection device main body and the probe protection sleeve are connected through welding or cast molding.
Preferably, the lower sealing cover and the probe protecting sleeve are connected through a fixing bolt.
Preferably, be equipped with the connecting wire between solar panel main part, solar energy converter, battery and the sensor main part, just connect through the connecting wire linearity between solar panel main part, solar energy converter, battery and the sensor main part.
Preferably, control lines are arranged among the sensor main body, the telemetry terminal and the wireless transceiver, and the sensor main body, the telemetry terminal and the wireless transceiver are in linear connection through the control lines.
Preferably, the wireless transceiver is wirelessly connected with an external receiving terminal.
Preferably, the diagonal reinforcing ribs and the water seepage holes are four groups, the diagonal reinforcing ribs and the water seepage holes are distributed in an equidistant annular mode, the water seepage groove is provided with six groups, and the water seepage groove is distributed in an equidistant annular mode.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the inclined-pulling reinforcing ribs, the balance seat and the probe protective sleeve, the stability of the protection device main body is improved, the protection device main body is prevented from inclining, and the stability of the probe is improved.
2. According to the invention, through the arrangement of the upper cover, the protection device main body, the shock absorption layer, the sealing ring layer and the lower sealing cover, as the sensor is positioned at the deep part of the rock soil of the waste dump of the strip mine, in order to prevent elements such as a storage battery, a remote measuring terminal, a solar energy converter and a wireless transceiver from being eroded by underground water, the upper cover, the protection device main body, the shock absorption layer, the sealing ring layer and the lower sealing cover form a sealing space, the elements such as the storage battery, the remote measuring terminal, the solar energy converter and the wireless transceiver are effectively protected, and the service life of the whole equipment is.
3. According to the invention, an unimpeded permeation system is formed through the arranged permeation holes and the permeation groove, so that the detection accuracy is improved.
Drawings
FIG. 1 is an overall structure diagram of a sensor protection device for detecting moisture content of deep rock soil in an open-pit mine dumping yard, which is provided by the invention;
FIG. 2 is an internal structure diagram of the sensor protection device for detecting the moisture content of deep rock soil in an open-pit mine dumping yard, which is provided by the invention;
FIG. 3 is a top view structural diagram of a sensor protection device for detecting moisture content of deep rock soil in an open-pit mine dumping yard, which is provided by the invention;
FIG. 4 is a bottom structure diagram of the sensor protection device for detecting the moisture content of deep rock soil in the strip mine dumping yard according to the invention.
In the figure: the solar energy water seepage monitoring device comprises a solar panel body 1, a wire column 2, an upper cover 3, a protective device body 4, a diagonal reinforcing rib 5, a balance seat 6, a probe protective sleeve 7, a wire groove 8, a storage battery 9, a remote measuring terminal 10, a shock absorbing layer 11, a sealing ring layer 12, a sensor body 13, a lower sealing cover 14, a probe 15, a solar energy converter 16, a wireless transceiver 17, a water seepage hole 18, a water seepage groove 19 and a fixing bolt 20.
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, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution:
a sensor protection device for detecting deep rock-soil moisture content of an open pit dumping field comprises a solar panel main body 1, a protection device main body 4 and a balance seat 6, wherein two groups of wire columns 2 are fixedly arranged in the middle of the lower end of the solar panel main body 1, wire grooves 8 are formed in the middle of the inner parts of the wire columns 2, an upper cover 3 is fixedly arranged at the lower end of each wire column 2, the wire columns 2 and the upper cover 3 are welded or cast, the protection device main body 4 is fixedly arranged at the lower end of the upper cover 3, a probe protection sleeve 7 is fixedly arranged at the lower end of the protection device main body 4, a water seepage groove 19 is formed in the outer part of the probe protection sleeve 7, the balance seat 6 is fixedly arranged at the outer part of the lower end of the protection device main body 4, a plurality of groups of water seepage holes 18 are formed in the upper end of the balance seat 6, four groups of, six groups have been seted up to infiltration groove 19, and infiltration groove 19 is equidistant annular distribution, fixed mounting has oblique-pulling strengthening rib 5 between balanced seat 6 and the protection device main part 4, oblique-pulling strengthening rib 5, balanced seat 6 and protection device main part 4, welded connection or casting between the probe protective sheath 7, the inside upper portion of protection device main part 4 is close to upper cover 3 department fixed mounting has battery 9, battery 9 lower extreme one side fixed mounting has telemetering measurement terminating machine 10, battery 9 lower extreme opposite side fixed mounting has solar energy converter 16, solar energy converter 16 lower extreme fixed mounting has wireless transceiver 17, wireless transceiver 17 and external receiving terminal wireless connection, telemetering measurement terminating machine 10 and wireless transceiver 17 lower extreme fixed mounting has buffer layer 11, buffer layer 11 is inside to be equipped with seal ring layer 12, seal ring layer 12 inside fixed mounting has sensor main part 13, sensor main part 13, Be equipped with the control line between telemetering measurement terminating machine 10 and the wireless transceiver 17, and sensor main part 13, through the linear connection of control line between telemetering measurement terminating machine 10 and the wireless transceiver 17, solar panel main part 1, solar energy converter 16, be equipped with the connecting wire between battery 9 and the sensor main part 13, and solar panel main part 1, solar energy converter 16, through the linear connection of connecting wire between battery 9 and the sensor main part 13, sensor main part 13 lower extreme fixed mounting has probe 15, the 11 lower extreme fixed mounting of buffer layer has lower sealed lid 14, the 14 lower extreme rings of lower sealed lid are equipped with fixing bolt 20, connect through fixing bolt 20 between lower sealed lid 14 and the probe protective sheath 7.
The working process of the invention is as follows: firstly, the length of a wire pole 2 is determined according to the required placement depth, then a protection device main body 4 is placed in a required installation area, the stability of the protection device main body 4 is enhanced through the arrangement of the inclined-pull reinforcing ribs 5, the balance seat 6 and the probe protection sleeve 7, the inclination of the protection device main body 4 is avoided, the stability of a probe 15 is improved, the sensor main body 13 is positioned at the deep part of the soil discharging field rock soil of an open mine through the arrangement of the upper cover 3, the protection device main body 4, the shock absorption layer 11, the seal ring layer 12 and the lower seal cover 14, in order to avoid the corrosion of the storage battery 9, the remote sensing terminal 10, the solar energy converter 16, the wireless transceiver 17 and other elements by underground water, the upper cover 3, the protection device main body 4, the shock absorption layer 11, the seal ring layer 12 and the lower seal cover 14 form a seal space, and the storage battery 9, the remote sensing terminal 10, the, the service life of the whole equipment is prolonged, an unimpeded permeation system is formed through the arranged water seepage holes 18 and the water seepage grooves 19, and the detection accuracy is improved.
Although embodiments of the present invention 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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a detect sensor protection device of strip mine refuse dump deep ground moisture content, includes solar panel main part (1), protection device main part (4) and balanced seat (6), its characterized in that: the solar panel comprises a solar panel main body (1), two groups of wire columns (2) are fixedly mounted in the middle of the lower end of the solar panel main body (1), a wire groove (8) is formed in the middle of the inner portion of each wire column (2), an upper cover (3) is fixedly mounted at the lower end of each wire column (2), a protection device main body (4) is fixedly mounted at the lower end of each upper cover (3), a probe protective sleeve (7) is fixedly mounted at the lower end of each protection device main body (4), a water seepage groove (19) is formed in the outer portion of each probe protective sleeve (7), a balance seat (6) is fixedly mounted at the position, close to each probe protective sleeve (7), of the outer portion of the lower end of each protection device main body (4), a plurality of groups of water seepage holes (18) are formed in the upper end of each balance seat (6), oblique-pulling reinforcing ribs (5) are fixedly mounted, the solar remote sensing terminal is characterized in that a remote sensing terminal (10) is fixedly mounted on one side of the lower end of the storage battery (9), a solar converter (16) is fixedly mounted on the other side of the lower end of the storage battery (9), a wireless transceiver (17) is fixedly mounted on the lower end of the solar converter (16), a shock absorption layer (11) is fixedly mounted on the lower ends of the remote sensing terminal (10) and the wireless transceiver (17), a sealing ring layer (12) is arranged inside the shock absorption layer (11), a sensor body (13) is fixedly mounted inside the sealing ring layer (12), a probe (15) is fixedly mounted on the lower end of the sensor body (13), a lower sealing cover (14) is fixedly mounted on the lower end of the shock absorption layer (11), and a fixing bolt.
2. The sensor protection device for detecting the moisture content of deep rock soil of the strip mine dumping site according to claim 1, characterized in that: the wire column (2) and the upper cover (3) are connected by welding or formed by casting.
3. The sensor protection device for detecting the moisture content of deep rock soil of the strip mine dumping site according to claim 1, characterized in that: the inclined pulling reinforcing rib (5), the balance seat (6), the protection device main body (4) and the probe protection sleeve (7) are connected in a welding mode or formed in a casting mode.
4. The sensor protection device for detecting the moisture content of deep rock soil of the strip mine dumping site according to claim 1, characterized in that: the lower sealing cover (14) is connected with the probe protective sleeve (7) through a fixing bolt (20).
5. The sensor protection device for detecting the moisture content of deep rock soil of the strip mine dumping site according to claim 1, characterized in that: the solar energy collecting device is characterized in that connecting wires are arranged among the solar energy panel main body (1), the solar energy converter (16), the storage battery (9) and the sensor main body (13), and the solar energy panel main body (1), the solar energy converter (16), the storage battery (9) and the sensor main body (13) are linearly connected through the connecting wires.
6. The sensor protection device for detecting the moisture content of deep rock soil of the strip mine dumping site according to claim 1, characterized in that: control lines are arranged among the sensor main body (13), the remote measuring terminal (10) and the wireless transceiver (17), and the sensor main body (13), the remote measuring terminal (10) and the wireless transceiver (17) are in linear connection through the control lines.
7. The sensor protection device for detecting the moisture content of deep rock soil of the strip mine dumping site according to claim 1, characterized in that: the wireless transceiver (17) is wirelessly connected with an external receiving terminal.
8. The sensor protection device for detecting the moisture content of deep rock soil of the strip mine dumping site according to claim 1, characterized in that: draw strengthening rib (5) and infiltration hole (18) all to one side and all be equipped with four groups, just draw strengthening rib (5) and infiltration hole (18) all to one side and all be equidistant annular distribution, six groups have been seted up in infiltration groove (19), just infiltration groove (19) are equidistant annular distribution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910468755.7A CN112014541A (en) | 2019-05-31 | 2019-05-31 | Detect sensor protection device of strip mine refuse dump deep ground moisture content |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910468755.7A CN112014541A (en) | 2019-05-31 | 2019-05-31 | Detect sensor protection device of strip mine refuse dump deep ground moisture content |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112014541A true CN112014541A (en) | 2020-12-01 |
Family
ID=73501141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910468755.7A Pending CN112014541A (en) | 2019-05-31 | 2019-05-31 | Detect sensor protection device of strip mine refuse dump deep ground moisture content |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112014541A (en) |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1669401A (en) * | 2005-04-15 | 2005-09-21 | 李新平 | Rabbit/mouse preventing and soil moisture preserving device for trees |
CN200969796Y (en) * | 2006-08-25 | 2007-11-07 | 徐通岭 | Water permeable grate for tree pit |
CN201523584U (en) * | 2009-04-16 | 2010-07-14 | 丁天岳 | Multifunctional tree grate |
CN203949078U (en) * | 2014-04-28 | 2014-11-19 | 江西东来大通电器有限公司 | A kind of energy-saving environment-friendly LED street lamp |
US20150112494A1 (en) * | 2011-01-06 | 2015-04-23 | Hunter Industries, Inc. | Irrigation system with et based seasonal watering adjustment and soil moisture sensor shutoff |
CN204989088U (en) * | 2015-04-21 | 2016-01-20 | 国家海洋局第一海洋研究所 | Soil moisture sensor |
CN205213628U (en) * | 2015-12-28 | 2016-05-11 | 霍锋 | Trunk protection device |
CN205808473U (en) * | 2016-07-21 | 2016-12-14 | 郭曦榕 | A kind of soil planting adaptability intelligent evaluation system |
CN206192987U (en) * | 2016-08-31 | 2017-05-24 | 浙江水文新技术开发经营公司 | Soil moisture content telemetry station |
CN207216385U (en) * | 2017-10-11 | 2018-04-10 | 长沙泊昕电气设备有限公司 | Soil K+adsorption remote monitoring system |
CN108709976A (en) * | 2018-05-16 | 2018-10-26 | 江含飞 | A kind of Soil K+adsorption remote supervisory and control(ling) equipment |
CN208188103U (en) * | 2018-03-20 | 2018-12-04 | 贵州雏阳生态环保科技有限公司 | A kind of garden soil detection waterproof detection probe |
CN109121911A (en) * | 2018-08-03 | 2019-01-04 | 肖正宇 | A kind of nursery stock liquid manure holding film |
CN109459558A (en) * | 2018-12-17 | 2019-03-12 | 中国农业科学院农业资源与农业区划研究所 | A kind of long-range soil monitoring device |
CN109541183A (en) * | 2018-12-29 | 2019-03-29 | 昆明理工大学 | A kind of protector for sensor detecting open-pit mine blast deep ground moisture content |
CN109541181A (en) * | 2018-12-28 | 2019-03-29 | 昆明理工大学 | Open-pit mine blast deep Rock And Soil moisture content on-Line Monitor Device and monitoring method |
-
2019
- 2019-05-31 CN CN201910468755.7A patent/CN112014541A/en active Pending
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1669401A (en) * | 2005-04-15 | 2005-09-21 | 李新平 | Rabbit/mouse preventing and soil moisture preserving device for trees |
CN200969796Y (en) * | 2006-08-25 | 2007-11-07 | 徐通岭 | Water permeable grate for tree pit |
CN201523584U (en) * | 2009-04-16 | 2010-07-14 | 丁天岳 | Multifunctional tree grate |
US20150112494A1 (en) * | 2011-01-06 | 2015-04-23 | Hunter Industries, Inc. | Irrigation system with et based seasonal watering adjustment and soil moisture sensor shutoff |
CN203949078U (en) * | 2014-04-28 | 2014-11-19 | 江西东来大通电器有限公司 | A kind of energy-saving environment-friendly LED street lamp |
CN204989088U (en) * | 2015-04-21 | 2016-01-20 | 国家海洋局第一海洋研究所 | Soil moisture sensor |
CN205213628U (en) * | 2015-12-28 | 2016-05-11 | 霍锋 | Trunk protection device |
CN205808473U (en) * | 2016-07-21 | 2016-12-14 | 郭曦榕 | A kind of soil planting adaptability intelligent evaluation system |
CN206192987U (en) * | 2016-08-31 | 2017-05-24 | 浙江水文新技术开发经营公司 | Soil moisture content telemetry station |
CN207216385U (en) * | 2017-10-11 | 2018-04-10 | 长沙泊昕电气设备有限公司 | Soil K+adsorption remote monitoring system |
CN208188103U (en) * | 2018-03-20 | 2018-12-04 | 贵州雏阳生态环保科技有限公司 | A kind of garden soil detection waterproof detection probe |
CN108709976A (en) * | 2018-05-16 | 2018-10-26 | 江含飞 | A kind of Soil K+adsorption remote supervisory and control(ling) equipment |
CN109121911A (en) * | 2018-08-03 | 2019-01-04 | 肖正宇 | A kind of nursery stock liquid manure holding film |
CN109459558A (en) * | 2018-12-17 | 2019-03-12 | 中国农业科学院农业资源与农业区划研究所 | A kind of long-range soil monitoring device |
CN109541181A (en) * | 2018-12-28 | 2019-03-29 | 昆明理工大学 | Open-pit mine blast deep Rock And Soil moisture content on-Line Monitor Device and monitoring method |
CN109541183A (en) * | 2018-12-29 | 2019-03-29 | 昆明理工大学 | A kind of protector for sensor detecting open-pit mine blast deep ground moisture content |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN205954721U (en) | Device is buried underground to marine wind power steel -pipe pile lateral soil pressure meter | |
CN106679735A (en) | Multi-water-type real-time monitoring device for mine soil dump site and using method thereof | |
CN112014541A (en) | Detect sensor protection device of strip mine refuse dump deep ground moisture content | |
CN211262122U (en) | Tailing dam infiltration line height monitoring device | |
CN213360101U (en) | Water and soil pressure monitor and water and soil pressure monitoring system for shield machine | |
CN108109343A (en) | A kind of method of simple type mountain landslide supervision | |
CN207216840U (en) | A kind of scenic spot landslide early-warning device based on GPS locator and wireless sensing | |
CN208765711U (en) | A kind of stationary slope level for automatic monitoring | |
CN116147576A (en) | Power transmission line tower settlement monitoring, early warning and protecting device and method | |
CN217738215U (en) | Deep displacement monitoring devices of waterproof type of degree of depth | |
CN217443957U (en) | Debris flow early warning integrated station | |
CN109541183A (en) | A kind of protector for sensor detecting open-pit mine blast deep ground moisture content | |
CN111579476B (en) | Transformer substation grounding grid corrosion detection system and method | |
CN113931697A (en) | Tunnel water seepage early warning device and tunnel water seepage monitoring and processing method | |
CN102605745A (en) | Flood-control dam system aiming at open pit coal mine and constructing method of flood-control dam system | |
CN110864723B (en) | Groundwater oil pollution monitoring system | |
CN209761459U (en) | Tunnel portal anti-sedimentation system | |
CN206989932U (en) | The construction auxiliary mould of existing pipeline is worn under shield | |
CN202787208U (en) | Soil layer settlement simple monitoring device | |
CN206338091U (en) | A kind of deep wall-rock crack water automated watch-keeping facility of superelevation | |
CN216132595U (en) | Internet of things wireless transmission type surrounding rock stress sensor for underground coal mine | |
CN204826001U (en) | Native pressure monitoring device in major diameter single pile basis of marine fan | |
CN218757381U (en) | Automatic change ground water level collector | |
CN212270241U (en) | Deep well anode with protection device | |
CN209182519U (en) | It is a kind of for installing the well body structure of dipmeter |
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 |