CN111591565A - Protection device for storing RTK measuring equipment - Google Patents

Protection device for storing RTK measuring equipment Download PDF

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Publication number
CN111591565A
CN111591565A CN202010565180.3A CN202010565180A CN111591565A CN 111591565 A CN111591565 A CN 111591565A CN 202010565180 A CN202010565180 A CN 202010565180A CN 111591565 A CN111591565 A CN 111591565A
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CN
China
Prior art keywords
partition plate
fixing
holes
cylindrical tube
protection device
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.)
Granted
Application number
CN202010565180.3A
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Chinese (zh)
Other versions
CN111591565B (en
Inventor
车广义
曹黎明
任玉龙
国新
王冠
刘宏宇
王金龙
韩凤飞
王国杰
向迪
高敏
叶永详
赵越峰
吕轩
崔宇慧
雷雨
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.)
Genchuang Planning And Design Co ltd
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Individual
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Priority to CN202010565180.3A priority Critical patent/CN111591565B/en
Publication of CN111591565A publication Critical patent/CN111591565A/en
Application granted granted Critical
Publication of CN111591565B publication Critical patent/CN111591565B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/02—Internal fittings
    • B65D25/10—Devices to locate articles in containers
    • B65D25/106—Elements projecting into a recess or through a hole in the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/20—External fittings
    • B65D25/24—External fittings for spacing bases of containers from supporting surfaces, e.g. legs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D59/00—Plugs, sleeves, caps, or like rigid or semi-rigid elements for protecting parts of articles or for bundling articles, e.g. protectors for screw-threads, end caps for tubes or for bundling rod-shaped articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/68—Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G01S19/43—Determining position using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

The invention provides a protection device for storing RTK measuring equipment, which comprises a first partition plate and a second partition plate positioned below the first partition plate, wherein the first partition plate is fixedly connected with the second partition plate through a plurality of supporting columns; the protection device also comprises a plurality of through holes arranged on the first partition plate and a plurality of placing holes arranged on the second partition plate, and one placing hole is arranged right below each through hole; the protective device further comprises a first wear sleeve disposed in each of the through holes and a wear pad disposed on a bottom of each of the receiving holes; the protection device also comprises four fixing holes arranged at four corners of the second partition plate, and a fixing device is arranged on each fixing hole; the invention solves the problem of low stability caused by repeatedly assembling and disassembling the equipment before and after each operation, better protects the equipment and improves the working efficiency.

Description

Protection device for storing RTK measuring equipment
Technical Field
The invention belongs to the field of measuring equipment, and particularly relates to a protection device for storing RTK measuring equipment.
Background
RTK is a real-time dynamic differential technology based on carrier phase observation, is a new GPS measurement method, can obtain centimeter-level positioning accuracy in real time in the field, and greatly improves the field operation efficiency. However, in the actual use process, due to the structural particularity of the instrument, the centering rod, the receiver and the receiving antenna need to be assembled before each operation, and the centering rod, the receiver and the receiver antenna input platform need to be disassembled after each operation, so that the receiver, the centering rod, the receiving antenna and the input platform are abraded and even damaged to different degrees in the long-term past, and the stability, the precision and the working efficiency of the equipment are reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a protection device for storing RTK measuring equipment, which solves the problem of low stability caused by repeated assembly and disassembly of the equipment before and after each operation, better protects the equipment and improves the working efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
a protection device for storing RTK measuring equipment comprises a first partition plate and a second partition plate located below the first partition plate, wherein the first partition plate is fixedly connected with the second partition plate through a plurality of supporting columns; the protection device also comprises a plurality of through holes arranged on the first partition plate and a plurality of placing holes arranged on the second partition plate, and one placing hole is arranged right below each through hole; the protective device further comprises a first wear sleeve disposed in each of the through holes and a wear pad disposed on a bottom of each of the receiving holes; the protection device also comprises four fixing holes arranged at four corners of the second partition plate, and a fixing device is arranged on each fixing hole.
Preferably, the fixing hole is a threaded hole.
Preferably, a second wear sleeve is also provided in each of the receiving holes, the second wear sleeve being mounted on the wear pad.
Preferably, the fixing device comprises a cylindrical tube and a plurality of fixing rods, the fixing rods are arranged in a circular array manner in the circumferential direction of the cylindrical tube, one ends of the fixing rods are fixedly installed on the cylindrical tube, and the other ends of the fixing rods are provided with pointed end portions.
Preferably, the outer wall of the cylindrical pipe is provided with threads, and the cylindrical pipe is connected with the fixing hole through the threads.
Preferably, a plurality of said fixation rods form a roller cavity around said cylindrical tube.
Preferably, the fixing device further comprises a roller positioned in the roller cavity, a threaded rod connected with the roller through a U-shaped plate, and two nuts installed at the upper end and the lower end of the cylindrical tube.
Preferably, the idler wheel is installed in a U-shaped opening of the U-shaped plate through a rotating shaft, one end of the threaded rod is fixedly installed on the U-shaped plate, the other end of the threaded rod penetrates through the two nuts and is fixedly connected with the handle, and the threaded rod is in threaded connection with the nuts.
Preferably, two nuts are positioned in the inner cavity of the cylindrical pipe; the handle is an L-shaped rod, and the handle and the threaded rod are integrally formed.
Preferably, the first wear sleeve is made of a rubber material, the second wear sleeve is made of a rubber material,
the wear pad is made of a rubber material.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. the first partition plate is fixedly connected with the second partition plate through the support columns, the first partition plate and the second partition plate are respectively provided with the through holes and the placing holes, and the placing holes are positioned right below the through holes; when the device is used, the RTK measuring equipment can be placed only by inserting the middle rod of the RTK measuring equipment into the through hole and the placing hole, and the RTK measuring equipment does not need to be disassembled; the invention solves the technical problems of low stability and inconvenient use caused by repeatedly assembling and disassembling the equipment before and after each operation, better protects the equipment and improves the working efficiency.
2. The first abrasion sleeve and the abrasion pad are utilized, so that the abrasion of the middle rod and the middle rod tip of the RTK measuring equipment can be effectively prevented.
3. The fixing holes are matched with the fixing devices arranged on the fixing holes, so that the device can be firmly fixed on the ground, cannot topple over and damage RTK equipment even in windy weather, and is convenient and safe to use.
4. The cylindrical pipe in the fixing device is rotatably arranged in the fixing hole through the threads arranged on the outer wall of the cylindrical pipe, so that the fixing device is more convenient to disassemble and assemble, the inclination of the fixing device caused by uneven ground is avoided, the fixing device is suitable for more complicated terrains, particularly mountainous areas, and the optimal balance state can be kept by rotating the cylindrical pipe when the ground is uneven.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a first separator and a second separator according to the present invention;
FIG. 3 is a schematic structural view of a first separator and a second separator according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3A;
FIG. 5 is a cross-sectional view of FIG. 2;
FIG. 6 is a schematic view of the fixing device of the present invention;
fig. 7 is a cross-sectional view of fig. 6.
The symbols in the figures are as follows:
the device comprises a first partition board 1, a second partition board 2, a support column 3, a through hole 4, a first abrasion sleeve 5, a fixing hole 6, a placing hole 7, a second abrasion sleeve 8, an abrasion pad 9, a fixing device 10, a handle 11, a cylindrical tube 12, a fixing rod 13, a U-shaped plate 14, a roller 15, a nut 16 and a threaded rod 17.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, according to an embodiment of the present invention, there is provided a protection device for storing an RTK measuring apparatus, including a first partition plate 1, a second partition plate 2 located below the first partition plate 1, a plurality of through holes 4 provided in the first partition plate 1, a plurality of seating holes 7 provided in the second partition plate 2, a first wear sleeve 5 provided in each of the through holes 4, a wear pad 9 provided on a bottom of each of the seating holes 7, four fixing holes 6 provided at four corners of the second partition plate 2, and a fixing device 10 mounted on each of the fixing holes 6, wherein the first partition plate 1 is fixedly connected to the second partition plate 2 by a plurality of support columns 3, and one seating hole 7 is provided directly below each of the through holes 4.
The first partition plate is fixedly connected with the second partition plate through the support columns, the first partition plate and the second partition plate are respectively provided with the through holes and the placing holes, and the placing holes are positioned right below the through holes, so that the problem of low stability caused by repeated assembling and disassembling of equipment before and after each operation is solved, the equipment is protected better, and the working efficiency is improved; the first abrasion sleeve and the abrasion pad are utilized to prevent the middle rod and the middle rod tip of the RTK measuring equipment from being abraded; the invention can be fixed on the ground by utilizing the fixing holes; the invention utilizes the fixing device, so that the invention can be fixed on the ground, and meanwhile, the invention can not be inclined due to uneven ground.
When the device is used, the RTK measuring equipment can be placed only by inserting the middle rod of the RTK measuring equipment into the through hole 4 and the placing hole 7. The fixing device can be directly fixed on the ground through the fixing holes in the using process, and can also be fixed on the ground through the fixing devices arranged on the fixing holes.
In an embodiment of the present invention, the height of the support column 3 is determined according to the height of the king-rod of the RTK measuring apparatus.
In the embodiment of the present invention, the fixing hole 6 is provided as a screw hole for better connection with the fixing device 10.
In the embodiment of the invention, in order to better reduce the abrasion of the second partition plate 2 to the mandril tip of the RTK measuring device, the invention also provides a second abrasion sleeve 8 in each mounting hole 7, and the second abrasion sleeve 8 is arranged on an abrasion pad 9.
In the embodiment of the present invention, as shown in fig. 6 and 7, the fixing device 10 of the present invention includes a cylindrical tube 12 and a plurality of fixing rods 13, a roller 15 located in the roller cavity, a threaded rod 17 connected to the roller 15 through a U-shaped plate 14, and two nuts 16 installed at the upper and lower ends of the cylindrical tube 12, wherein the plurality of fixing rods 13 are arranged in a circular array in the circumferential direction of the cylindrical tube 12, and in this embodiment, 3 fixing rods 13 are provided. One end of the fixing rod 13 is fixedly installed on the cylindrical tube 12, and the other end is formed with a tip portion. The outer wall of the cylindrical pipe 12 is provided with threads, and the cylindrical pipe 12 is connected with the fixing hole 6 through the threads. A plurality of retaining rods 13 form roller cavities around the cylindrical tube 12. The roller 15 is installed in the U-shaped opening of the U-shaped plate 14 through a rotating shaft, one end of the threaded rod 17 is fixedly installed on the U-shaped plate 14, the other end of the threaded rod 17 penetrates through the two nuts 16 to be fixedly connected with the handle 11, and the threaded rod 17 is in threaded connection with the nuts 16. Two nuts 16 are located in the interior cavity of the cylindrical tube 12. The handle 11 is an L-shaped rod, and the handle 11 is integrally formed with the threaded rod 17.
The cylindrical pipe 12 in the fixing device 10 is rotatably arranged in the fixing hole 6 through the threads arranged on the outer wall of the cylindrical pipe, so that the fixing device 10 is more convenient to assemble and disassemble, meanwhile, the inclination of the fixing device caused by uneven ground is avoided, and the fixing device is suitable for more complicated terrains, particularly mountainous areas (when the ground is uneven, the fixing device can be adjusted to be horizontal by rotating the cylindrical pipe 12).
The number of the fixing rods 13 in the fixing device 10 is 3, and meanwhile, the 3 fixing rods 13 are arranged in a circular array manner in the circumferential direction of the cylindrical tube 12, one end of each fixing rod 13 is fixedly installed on the cylindrical tube 12, and the other end of each fixing rod 13 is provided with a tip end, so that the tip ends of the 3 fixing rods 13 form a triangle, and the invention is more stable on the ground.
The roller 15 of the fixing device 10 is positioned in the roller cavity, the roller 15 is connected with the threaded rod 17 through the U-shaped plate 14, the threaded rod 17 passes through the nut 16 and is in threaded connection with the nut 16, and meanwhile, the nut 16 is arranged in the inner cavity of the cylindrical tube 12, so that the invention is more convenient and rapid to move; when the invention needs to move, the handle 11 rotates the threaded rod 17, so that the threaded rod 17 drives the roller 15 to move downwards, when the roller 15 moves out of the roller cavity, the handle 11 stops rotating, and the first clapboard 1 or the second clapboard 2 is pushed, so that the invention can be driven to move.
In an embodiment of the invention, the first wear sleeve 5, the second wear sleeve 8, the wear pad 9 are made of a rubber material.
It is noted that terms such as first and second are used herein only to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims (10)

1. A protection device for storing RTK measuring equipment is characterized by comprising a first partition plate and a second partition plate located below the first partition plate, wherein the first partition plate is fixedly connected with the second partition plate through a plurality of supporting columns; the protection device also comprises a plurality of through holes arranged on the first partition plate and a plurality of placing holes arranged on the second partition plate, and one placing hole is arranged right below each through hole; the protective device further comprises a first wear sleeve disposed in each of the through holes and a wear pad disposed on a bottom of each of the receiving holes; the protection device also comprises four fixing holes arranged at four corners of the second partition plate, and a fixing device is arranged on each fixing hole.
2. The protective device of claim 1, wherein the securing holes are threaded holes.
3. The protector as set forth in claim 1 wherein a second wear sleeve is also disposed in each said mounting hole, said second wear sleeve being mounted on said wear pad.
4. The protector as claimed in claim 1, wherein the fixing means comprises a cylindrical tube and a plurality of fixing rods arranged in a circular array in a circumferential direction of the cylindrical tube, one end of the fixing rods being fixedly mounted on the cylindrical tube and the other end thereof being formed with a pointed end.
5. The protector according to claim 4, characterized in that the outer wall of the cylindrical tube is provided with a thread, and the cylindrical tube is connected with the fixing hole through the thread.
6. The protective apparatus of claim 4 wherein a plurality of said securing rods form a roller cavity about said cylindrical tube.
7. The protective device of claim 6, wherein the fixing device further comprises a roller in the roller cavity, a threaded rod connected with the roller through a U-shaped plate, and two nuts mounted at the upper and lower ends of the cylindrical tube.
8. The protection device of claim 7, wherein the roller is installed in the U-shaped opening of the U-shaped plate through a rotating shaft, one end of the threaded rod is fixedly installed on the U-shaped plate, the other end of the threaded rod penetrates through the two nuts to be fixedly connected with the handle, and the threaded rod is in threaded connection with the nuts.
9. The protector of claim 8, wherein two of said nuts are located in said cylindrical tube interior cavity; the handle is an L-shaped rod, and the handle and the threaded rod are integrally formed.
10. The protective device of claim 3, wherein the first wear sleeve is made of a rubber material, the second wear sleeve is made of a rubber material, and the wear pad is made of a rubber material.
CN202010565180.3A 2020-06-19 2020-06-19 Protection device for storing RTK measuring equipment Active CN111591565B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010565180.3A CN111591565B (en) 2020-06-19 2020-06-19 Protection device for storing RTK measuring equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010565180.3A CN111591565B (en) 2020-06-19 2020-06-19 Protection device for storing RTK measuring equipment

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CN111591565A true CN111591565A (en) 2020-08-28
CN111591565B CN111591565B (en) 2023-10-27

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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1400962A1 (en) * 1986-07-25 1988-06-07 Предприятие П/Я Г-4715 Holder for parts
TW413239U (en) * 1999-03-24 2000-11-21 Lin Da Cheng Simple and easy box body structure both with environmental exhibiting and packing purposes
JP2010115758A (en) * 2008-11-14 2010-05-27 Nk Engineering Kk Portable workbench device
JP2012051087A (en) * 2010-09-03 2012-03-15 Asahi Kinzoku Kogyo Kk Knockdown tool holding device
CN204854782U (en) * 2015-08-14 2015-12-09 郭晓波 Novel hydrology prospecting RTK equipment fixed baseplate
CN205675880U (en) * 2016-06-02 2016-11-09 国网江西省电力公司南昌供电分公司 A kind of cable laying frame
CN206263919U (en) * 2016-12-22 2017-06-20 国网浙江省电力公司金华供电公司 Packaged type Standardized operation tool box
CN106904357A (en) * 2017-03-14 2017-06-30 李培培 A kind of breakage-proof formula geotechnical investigation soil sample storage box
CN207365975U (en) * 2017-11-10 2018-05-15 吉林师范大学 A kind of suitable desert, the RTK GPS centering rods of wetland measurement
CN207824412U (en) * 2018-01-16 2018-09-07 中山市恒立金属制品有限公司 A kind of high-precision fixed position mould of kirsite panel processing
CN108758276A (en) * 2018-06-07 2018-11-06 河南工程学院 A kind of instrument of surveying and mapping holder
CN110077698A (en) * 2019-06-03 2019-08-02 杭州谈笑电子商务有限公司 NRAS gene mutation detection kit
CN209551681U (en) * 2019-03-18 2019-10-29 山东广域科技有限责任公司 A kind of vertical insulating bar bracket
CN210461962U (en) * 2019-09-12 2020-05-05 山东省邱集煤矿有限公司 Cross wear prevention protection device
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Publication number Priority date Publication date Assignee Title
SU1400962A1 (en) * 1986-07-25 1988-06-07 Предприятие П/Я Г-4715 Holder for parts
TW413239U (en) * 1999-03-24 2000-11-21 Lin Da Cheng Simple and easy box body structure both with environmental exhibiting and packing purposes
JP2010115758A (en) * 2008-11-14 2010-05-27 Nk Engineering Kk Portable workbench device
JP2012051087A (en) * 2010-09-03 2012-03-15 Asahi Kinzoku Kogyo Kk Knockdown tool holding device
CN204854782U (en) * 2015-08-14 2015-12-09 郭晓波 Novel hydrology prospecting RTK equipment fixed baseplate
CN205675880U (en) * 2016-06-02 2016-11-09 国网江西省电力公司南昌供电分公司 A kind of cable laying frame
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CN108758276A (en) * 2018-06-07 2018-11-06 河南工程学院 A kind of instrument of surveying and mapping holder
CN209551681U (en) * 2019-03-18 2019-10-29 山东广域科技有限责任公司 A kind of vertical insulating bar bracket
CN110077698A (en) * 2019-06-03 2019-08-02 杭州谈笑电子商务有限公司 NRAS gene mutation detection kit
CN210461962U (en) * 2019-09-12 2020-05-05 山东省邱集煤矿有限公司 Cross wear prevention protection device
CN212268223U (en) * 2020-06-19 2021-01-01 北方魏家峁煤电有限责任公司 Protection device for storing RTK measuring equipment

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Title
韩世德;: "GPS-RTK技术在公路工程中的应用", 交通世界, no. 12, pages 60 - 61 *

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