CN113970041B - Geographic information acquisition device for homeland space planning - Google Patents

Geographic information acquisition device for homeland space planning Download PDF

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Publication number
CN113970041B
CN113970041B CN202111325124.3A CN202111325124A CN113970041B CN 113970041 B CN113970041 B CN 113970041B CN 202111325124 A CN202111325124 A CN 202111325124A CN 113970041 B CN113970041 B CN 113970041B
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CN
China
Prior art keywords
frame body
shaft
sliding
information acquisition
acquisition device
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Active
Application number
CN202111325124.3A
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Chinese (zh)
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CN113970041A (en
Inventor
王成华
王燕
鲍镇
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.)
Xintai Land And Space Planning Service Center Xintai Architectural Design Institute Xintai Water Conservancy Design Institute
Original Assignee
Xintai Land And Space Planning Service Center Xintai Architectural Design Institute Xintai Water Conservancy Design Institute
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Application filed by Xintai Land And Space Planning Service Center Xintai Architectural Design Institute Xintai Water Conservancy Design Institute filed Critical Xintai Land And Space Planning Service Center Xintai Architectural Design Institute Xintai Water Conservancy Design Institute
Priority to CN202111325124.3A priority Critical patent/CN113970041B/en
Publication of CN113970041A publication Critical patent/CN113970041A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043Allowing translations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/16Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/18Heads with mechanism for moving the apparatus relatively to the stand
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/42Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M7/00Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Working Implements (AREA)

Abstract

The invention discloses a geographic information acquisition device for planning a homeland space, which comprises a base, wherein the base is provided with a plurality of geographic information acquisition units; the base is provided with a hinging seat; the hinge seat is provided with a main frame body; the main frame body is hinged with the hinge seat and can be perpendicular to the ground at 90 degrees; the main frame body is connected with a sliding frame body in a sliding way; the sliding frame body is provided with a positioning frame; connecting plates are arranged at two ends of the positioning frame; a plurality of connecting rods are arranged between the connecting plates; a limiting shaft is arranged between the connecting rods in a sliding way; the limit shaft is provided with a marker post; the upper end of the sliding frame body is provided with a driving box; a driving shaft is arranged in the driving box; the two ends of the driving shaft are respectively provided with a turntable handle and a transmission case, and the driving shaft is provided with a wire spool; the wire spool is provided with a connecting rope; the connecting rope is connected with the limiting shaft; the transmission case is connected with a driving motor. Compared with the prior art, the invention has the beneficial effects that: simple structure, convenient use and operation, and strong application range and capability.

Description

Geographic information acquisition device for homeland space planning
Technical Field
The invention relates to the field of signal receiving equipment, in particular to portable signal receiving equipment.
Background
Geographic information systems are a comprehensive discipline, combining geography with graphics and remote sensing and computer science, have been widely used in different fields, are computer systems for inputting, storing, querying, analyzing and displaying geographic data, GIS are computer-based tools that analyze and process spatial information, and in short, map and analyze phenomena and events occurring on earth, and the information is collected and analyzed by a geographic information collecting device. To conventional acquisition equipment such as RTK meters, level gauges, laser meters, and the like.
Most of the devices adopt tripod structures or are used for placing the middle standard poles, and due to the characteristics of the structures, the devices are greatly restricted by the field environment and are inconvenient to move. And tends to increase the difficulty of measurement.
Disclosure of Invention
The invention provides a geographic information acquisition device for planning a homeland space, which is characterized by simple structure, convenient use and operation and strong application range and capability.
In order to achieve the above purpose, the present invention provides the following technical solutions: the geographical information acquisition device for planning the homeland space comprises a base; the base is provided with a hinging seat; the hinge seat is provided with a main frame body; the main frame body is hinged with the hinge seat and can be perpendicular to the ground at 90 degrees; the main frame body is connected with a sliding frame body in a sliding manner; the sliding frame body is provided with a positioning frame; connecting plates are arranged at two ends of the positioning frame; a plurality of connecting rods are arranged between the connecting plates; a limiting shaft is slidably arranged between the connecting rods; a marker post is arranged on the limiting shaft; the upper end of the sliding frame body is provided with a driving box; a driving shaft is arranged in the driving box; the two ends of the driving shaft are respectively provided with a turntable handle and a transmission case, and the driving shaft is provided with a wire spool; the wire spool is provided with a connecting rope; the connecting rope is connected with the limiting shaft; and the transmission case is connected with a driving motor.
As optimization, a fixed frame is arranged on the sliding frame body; a sliding motor is arranged on the fixing frame; the sliding frame body is provided with a thread seat; a screw shaft is arranged between the sliding motor and the screw seat.
As optimization, the main frame body is provided with a limit sliding rail; a slot is arranged on the limit sliding rail; the sliding frame body is provided with a positioning pin shaft; the positioning pin shaft is clamped and slides in the groove.
As optimization, the upper end of the sliding frame body is provided with a guide frame; the marker post penetrates through the guide hole of the guide frame.
As optimization, the wire spool is provided with 2 wire spools and symmetrically arranged on two sides of the guide frame; and the limiting shaft is provided with a pull hole corresponding to the wire spool.
As optimization, the transmission case is provided with a locking pin; the locking pin is connected with the transmission case through threads, so that the locking pin is connected with the driving shaft.
As optimization, the hinge seat is provided with a connecting hole; the base is provided with a supporting seat; the supporting seat and the main frame body are provided with connecting holes; and fixing bolts are arranged in the connecting holes and the connecting holes.
As optimization, the lower end of the base is provided with a hub; a screw rod lifter is arranged on the periphery of the base; the upper end of the screw rod lifter 1 is provided with a handle, and the lower end of the screw rod lifter is provided with a supporting ring table; the number of the screw rod lifters is 3, and the screw rod lifters are distributed in an isosceles triangle structure.
As optimization, a limiting pin shaft is arranged on the limiting shaft; the locating rack is provided with a sliding rail; the sliding rails are provided with 2 limiting pin shafts, and the limiting pin shafts are clamped between the sliding rails.
As optimization, the connecting rod and the limiting shaft are of round structures, and the connecting rod is an circumscribed circle of the limiting shaft; the lower end of the connecting rod is in a sharp corner structure; the lower end of the marker post is in a sharp corner structure.
Compared with the prior art, the invention has the following beneficial effects: through installing corresponding measurement acquisition equipment on the target, effectually solved the site operation and easily receive shelter from the thing and lead to unable measuring problem, the whole transportation of being convenient for of equipment simultaneously can be according to the corresponding height of demand regulation, and the structure is reliable when placing the measurement, can effectively improve signal acceptance's stability and accuracy.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic perspective view of the driving box of the present invention.
Fig. 4 is a schematic perspective view of a limit sliding rail according to the present invention.
Fig. 5 is a schematic perspective view of a positioning frame according to the present invention.
Fig. 6 is a front view of the spacer of the present invention.
The device comprises a base 1, a hinging seat 2, a main frame body 3, a sliding frame body 4, a positioning frame 5, a sliding rail 6, a limiting shaft 7, a limiting pin shaft 8, a driving box 9, a driving shaft 10, a turntable handle 11, a transmission box 12, a driving motor 13, a wire reel 14, a guide frame 15, a locking pin 16, a fixing frame 17, a sliding motor 18, a wire shaft 19, a thread seat 20, a limiting sliding rail 21, a slot 22, a positioning pin shaft 23, a connecting plate 24, a connecting rod 25, a standard rod 26, a connecting hole 27, a supporting seat 28, a fixing bolt 29, a hub 30 and a screw rod lifter 31.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The geographical information acquisition device for planning the homeland space comprises a base 1; a hinge seat 2 is arranged on the base 1; the hinge seat 2 is provided with a main frame body 3; the main frame body 3 is hinged with the hinge seat 2 and can be perpendicular to the ground at 90 degrees; the main frame body 3 is connected with a sliding frame body 4 in a sliding manner; the sliding frame body 4 is provided with a positioning frame 5; connecting plates 24 are arranged at two ends of the positioning frame 5; a plurality of connecting rods 25 are arranged between the connecting plates 24; a limiting shaft 7 is slidably arranged between the connecting rods 25; a marker post 26 is arranged on the limiting shaft 7; the upper end of the sliding frame body 4 is provided with a driving box 9; a driving shaft 10 is arranged in the driving box 9; the two ends of the driving shaft 10 are respectively provided with a turntable handle 11 and a transmission case 12, and the driving shaft 10 is provided with a wire spool 14; the wire spool 14 is provided with a connecting rope; the connecting rope is connected with the limiting shaft 7; the transmission case 12 is connected with a driving motor 13.
The sliding frame body 4 is provided with a fixing frame 17; the fixed frame 17 is provided with a sliding motor 18; the sliding frame body 4 is provided with a thread seat 20; a screw shaft 19 is arranged between the sliding motor 18 and the screw seat 20. The main frame body 3 and the sliding frame body 4 realize relative displacement through the rotation of the wire shaft 19.
A limiting sliding rail 21 is arranged on the main frame body 3; a slot 22 is arranged on the limit sliding rail 21; the sliding frame body 4 is provided with a positioning pin 23; the positioning pin 23 is in clamping sliding in the slot 22. Plays a role in limiting and protecting, and a guide frame 15 is arranged at the upper end of the sliding frame body 4; the target rod 26 penetrates through the guide hole of the guide frame 15. Further lifting the stable lifting of the targets 26.
The wire reels 14 are provided with 2 wire reels and symmetrically arranged on two sides of the guide frame 15; the limiting shaft 7 is provided with a pulling hole corresponding to the wire spool 14. Used for hooking the connecting rope and ensuring the uniformity of stress.
The transmission case 12 is provided with a locking pin 16; the locking pin 16 is threadably engaged with the gear box 12 such that the locking pin 16 is engaged with the drive shaft 10. When not in use, locking is performed by the locking pin 16.
The hinge seat 2 is provided with a connecting hole 27; the base 1 is provided with a supporting seat 28; the supporting seat 28 and the main frame body 3 are provided with connecting holes; the connecting holes and the connecting holes 27 are internally provided with fixing bolts 29.
The lower end of the base 1 is provided with a hub 30; a screw rod lifter 31 is arranged on the periphery of the base 1; the upper end of the screw rod lifter 31 is a handle, and the lower end is a supporting ring table; the number of the screw rod lifters 31 is 3, and the screw rod lifters are distributed in an isosceles triangle structure.
The limiting shaft 7 is provided with a limiting pin shaft 8; the locating rack 5 is provided with a sliding rail 6; the number of the sliding rails 6 is 2, and the limiting pin shafts 8 are embedded between the sliding rails 6.
The connecting rod 25 and the limiting shaft 7 are of round structures, and the connecting rod 25 is an circumscribed circle of the limiting shaft 7; the lower end of the connecting rod 25 is in a sharp angle structure; the lower end of the post 26 has a pointed structure. Through the closed angle structure, insert soil layer and earth's surface more conveniently.
The working principle is as follows:
after the equipment is moved to a designated position through the hub 30, the screw rod lifter 31 is rotated to enable the base 1 to form a triangular support stable structure, and then the main frame body 3 is rotated to enable the main frame body 3 to be in a vertical state with the ground, and then the hinge base 2 and the main frame body 3 are fixedly connected through the connecting hole 27 and the fixing bolt 29.
At this time, the sliding motor 18 starts to start, and the driving screw shaft 19 rotates, so that the sliding frame body 4 moves downwards, and the connecting rod 25 at the lower end of the positioning frame 5 is inserted into the ground, thereby further improving the stability of the whole structure.
According to the requirement, the driving motor 13 is started to drive the wire spool 14 to rotate, so that the limiting shaft 7 is lifted through the connecting rope; the connecting rod 25 and the limiting shaft 7 are of round structures, the connecting rod 25 is an circumscribed circle of the limiting shaft 7, the connecting rod 25 is guaranteed to play a role in guiding the limiting shaft 7, and meanwhile the guide frame 15 arranged at the top is further used for guiding the marker post 26; furthermore, the limiting pin shaft 8 arranged on the limiting shaft 7 is also slidably clamped in the sliding rail 6, so that the lifting guide stability is further ensured.

Claims (8)

1. The utility model provides a geographical information collection system for planning of country soil space which characterized in that: comprises a base (1); a hinging seat (2) is arranged on the base (1); a main frame body (3) is arranged on the hinging seat (2); the main frame body (3) is hinged with the hinge seat (2) and can be perpendicular to the ground at 90 degrees; the main frame body (3) is connected with a sliding frame body (4) in a sliding manner; a locating frame (5) is arranged on the sliding frame body (4); connecting plates (24) are arranged at two ends of the positioning frame (5); a plurality of connecting rods (25) are arranged between the connecting plates (24); a limiting shaft (7) is arranged between the connecting rods (25) in a sliding manner; a marker post (26) is arranged on the limiting shaft (7); the upper end of the sliding frame body (4) is provided with a driving box (9); a driving shaft (10) is arranged in the driving box (9); two ends of the driving shaft (10) are respectively provided with a turntable handle (11) and a transmission case (12), and the driving shaft (10) is provided with a wire spool (14); the wire spool (14) is provided with a connecting rope; the connecting rope is connected with the limiting shaft (7); a driving motor (13) is connected to the transmission case (12); a limiting pin shaft (8) is arranged on the limiting shaft (7); a slide rail (6) is arranged on the positioning frame (5); 2 slide rails (6) are arranged, and limiting pin shafts (8) are clamped and embedded between the slide rails (6); the connecting rod (25) and the limiting shaft (7) are of round structures, and the connecting rod (25) is an circumscribed circle of the limiting shaft (7); the lower end of the connecting rod (25) is in a sharp angle structure; the lower end of the marker post (26) is in a sharp angle structure.
2. The geographical information acquisition device for homeland space planning according to claim 1, wherein: a fixing frame (17) is arranged on the sliding frame body (4); a sliding motor (18) is arranged on the fixing frame (17); a thread seat (20) is arranged on the sliding frame body (4); a screw shaft (19) is arranged between the sliding motor (18) and the screw seat (20).
3. The geographical information acquisition device for homeland space planning according to claim 2, wherein: a limit sliding rail (21) is arranged on the main frame body (3); a slot (22) is arranged on the limit sliding rail (21); a positioning pin shaft (23) is arranged on the sliding frame body (4); the positioning pin shaft (23) is clamped and slides in the groove (22).
4. The geographical information acquisition device for homeland space planning according to claim 1, wherein: the upper end of the sliding frame body (4) is provided with a guide frame (15); the marker post (26) penetrates through the guide hole of the guide frame (15).
5. The geographical information acquisition device for homeland space planning of claim 4, wherein: the wire reels (14) are provided with 2 wire reels which are symmetrically arranged on two sides of the guide frame (15); and the limiting shaft (7) is provided with a pulling hole corresponding to the wire spool (14).
6. The geographical information acquisition device for homeland space planning according to claim 1, wherein: a locking pin (16) is arranged on the transmission case (12); the locking pin (16) is connected with the transmission case (12) through threads, so that the locking pin (16) can be connected with the driving shaft (10).
7. The geographical information acquisition device for homeland space planning according to claim 1, wherein: a connecting hole (27) is formed in the hinging seat (2); a supporting seat (28) is arranged on the base (1); the supporting seat (28) and the main frame body (3) are provided with connecting holes; and fixing bolts (29) are arranged in the connecting holes and the connecting holes (27).
8. The geographical information acquisition device for homeland space planning according to claim 1, wherein: the lower end of the base (1) is provided with a hub (30); a screw rod lifter (31) is arranged on the periphery of the base (1); the upper end of the screw rod lifter (31) is provided with a handle, and the lower end of the screw rod lifter is provided with a supporting ring table; the number of the screw rod lifters (31) is 3, and the screw rod lifters are distributed in an isosceles triangle structure.
CN202111325124.3A 2021-11-03 2021-11-03 Geographic information acquisition device for homeland space planning Active CN113970041B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111325124.3A CN113970041B (en) 2021-11-03 2021-11-03 Geographic information acquisition device for homeland space planning

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Application Number Priority Date Filing Date Title
CN202111325124.3A CN113970041B (en) 2021-11-03 2021-11-03 Geographic information acquisition device for homeland space planning

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CN113970041B true CN113970041B (en) 2023-06-20

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CN211525956U (en) * 2019-12-31 2020-09-18 深圳市格特隆光电股份有限公司 LED vertical display screen capable of being folded and transported
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100747158B1 (en) * 2006-08-22 2007-08-07 현대자동차주식회사 Drop lift

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