CN113984029B - Grassland is pointing device for general investigation - Google Patents

Grassland is pointing device for general investigation Download PDF

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Publication number
CN113984029B
CN113984029B CN202111410937.2A CN202111410937A CN113984029B CN 113984029 B CN113984029 B CN 113984029B CN 202111410937 A CN202111410937 A CN 202111410937A CN 113984029 B CN113984029 B CN 113984029B
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CN
China
Prior art keywords
fixed
fixed point
main body
point structure
ruler
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Active
Application number
CN202111410937.2A
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Chinese (zh)
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CN113984029A (en
Inventor
王雅茹
邢旗
白杨
陈翔
杨红艳
张晓严
金净
包海龙
张健
胡努斯吐
宋晓辉
丁奋谦
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Inner Mongolia M Grass Ecological Environment Group Co Ltd
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Inner Mongolia M Grass Ecological Environment Group Co Ltd
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Priority to CN202111410937.2A priority Critical patent/CN113984029B/en
Publication of CN113984029A publication Critical patent/CN113984029A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/02Means for marking measuring points
    • G01C15/06Surveyors' staffs; Movable markers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The invention provides a grassland general investigation pointing device, which comprises a main body, a pointing structure and a base; the fixed point structure is connected with the main body through a hinge, the fixed point structure main body is embedded into the main body, and the fixed point structure is also connected with the main body through a connecting rod; the fixed point structure comprises a ruler box, wherein a ruler is placed in the ruler box, the zero point of the ruler is a designated point position, and fixed point census holes are formed in the ruler every other meter; compared with the existing investigation mode, the invention is convenient to carry and transfer, can be quickly installed and retracted, realizes the accurate positioning of the appointed point, realizes the simultaneous investigation of the appointed points in three directions, and saves the investigation time and the direction rotation of equipment.

Description

Grassland is pointing device for general investigation
Technical Field
The invention belongs to the technical field of grassland screening equipment, and particularly relates to a fixed-point equipment for grassland screening.
Background
The grassland fixed-point census method is a convenient physical census mode for researching the grassland soil layer structure, has very important significance in the grassland soil layer investigation, not only is the soil layer structure and the current situation known in detail, but also detailed data is provided for the grassland ecological environment protection so as to provide more scientific basis for further improving the grassland ecological environment, and on the other hand, powerful data is provided for searching mineral resources.
Because the lag of the existing general investigation mode leads to slow general investigation speed and insufficient precision, the grassland general investigation pointing device is designed for realizing convenient grassland fixed-point investigation, and can be quickly installed and retracted to realize the precise positioning of the pointed point.
Disclosure of Invention
The invention aims to provide a grassland general survey pointing device which is convenient to survey grassland points, can be quickly installed and retracted, and can be used for accurately positioning the pointed points.
The invention realizes the above purpose through the following technical scheme:
the grassland screening fixed-point equipment comprises a main body, a fixed-point structure and a base, wherein the base is arranged below the main body;
The main body comprises a main body base and a connecting rod, a fixed column hole is formed in the middle of the main body base, and a fixed clamping head groove is formed in the top end of the fixed column hole; three fixed point structure grooves are formed in the outer surface of the main body, sliding block movable grooves are formed in two sides of each fixed point structure groove, a plurality of sliding block fixing clamping plate grooves are formed in two sides of each sliding block movable groove, sliding rails are connected in the sliding block movable grooves, sliding blocks are sleeved on the sliding rails, first fixed point structure fixing clamping plate grooves are formed in the fixed point structure grooves, and hinge grooves are formed in the lower ends of the fixed point structure grooves; the upper end of the main body is provided with a battery placing bin, the top of the battery placing bin is fixedly connected with a level bubble, and the top of the battery placing bin is also provided with three tape motor switches;
The fixed point structure comprises a fixed point structure main body, wherein the upper surface of the fixed point structure main body is fixedly connected with a ruler box, two rows of shaft lever placing frames are respectively arranged at the front end and the rear end in the ruler box, and two rows of baffles are arranged in the middle of the shaft lever placing frames; the shaft rod placing rack is sleeved with a shaft rod, a small roller is sleeved on the shaft rod of the front end shaft rod placing rack, a large roller is sleeved on the shaft rod of the rear end shaft rod placing rack, the small roller and the large roller are connected through a transmission belt, one end fixed with a ruler is connected with the transmission belt, the other end extends to the outside of a ruler outlet by bypassing the transmission belt and is connected with a ruler ring, one side of the large roller is provided with a motor, a ruler box cover plate is arranged above the ruler box, and connecting plates are fixedly connected to two sides of the ruler box; a hinge groove is formed in one side of the upper surface of the fixed-point structure main body; the lower surface of the fixed point structure main body is provided with a landing leg nail placing groove, a limiting plate block is arranged in the landing leg nail placing groove, a shaft seat is fixedly connected to the limiting plate block, the shaft seat is movably connected with a landing leg nail, one side of the landing leg nail placing groove is provided with a second fixed point structure fixed clamping plate groove, a fixed point structure fixed clamping plate is sleeved in the second fixed point structure fixed clamping plate groove, the lower end of the fixed point structure fixed clamping plate is provided with a shaft lever, and a clamping plate roller is sleeved on the shaft lever;
The base comprises a base tray, the upper surface of the base tray is fixedly connected with a fixed column, the top end of the fixed column is provided with a fixed chuck, the base tray is provided with a compass groove, a compass is embedded in the compass groove, and the north direction of the compass is in the same direction as the ruler outlet direction of one of the fixed point structures; the base tray lower surface fixedly connected with buffer disk, buffer disk lower surface fixedly connected with dead lever.
The main body and the fixed point structure are connected through a hinge, and the fixed point structure main body is embedded into the main body; the main body and the base are assembled and clamped by matching the fixed column holes with the fixed column and matching the fixed clamping head grooves with the fixed clamping heads; one end of the connecting rod is connected with the sliding block, and the other end of the connecting rod is connected with the connecting plate.
The shaft lever of the large roller and the output shaft of the motor are respectively provided with a belt pulley, and the two belt pulleys are connected through a V-belt; the motor is electrically connected with the battery and the tape motor switch through a wire.
The landing leg nails are conical, and the tops of the landing leg nails are fixedly connected with the ejector blocks; a convex plate is fixedly connected to the fixed-point structure fixing clamping plate, and a spring is arranged between the convex plate and the inner wall of the fixed-point structure main body; a rubber fixing sleeve fixedly connected with the landing leg nails is arranged on one side of the landing leg nail placing groove; one side of the top block is attached to the clamping plate roller; the other side of the top block is matched with the limit plate; the design of the structure perfectly utilizes the working principle of the landing leg nails and the acting force between the fixed clamping plates of the fixed structure to realize lifting of the fixed clamping plates of the fixed structure to lock the fixed structure, reduces the number of independently designed switch modules, and shows the versatility of the landing leg nails.
The center of the fixed rod is a fixed point position; the ruler zero point is a designated point position, and fixed point census holes are formed in the ruler every other one meter; the design realizes the accurate positioning of the designated point.
The fixed point equipment is also provided with a plurality of investigation identification nails and a sliding block fixing clamping plate; a signboard representing different positions is arranged above the investigation identification nail; the designed distance position can be judged to the greatest extent in the operation process.
And the base tray, the buffer tray and the fixing rod are of an integrated structure.
The beneficial effects of the invention are as follows:
1. the invention is particularly used for grassland fixed-point soil layer investigation, and compared with the existing investigation mode, the invention is convenient to carry and transfer, can be quickly installed and retracted, and realizes the accurate positioning of the specified points.
2. The invention can simultaneously perform fixed-point investigation in three directions through the three fixed-point structures, thereby saving investigation time and direction rotation of equipment.
3. The function of the part leg nails of the invention is that the legs are fixed and can be used as keys to lock the fixed point structure in the main body; the design of the component increases the versatility of the leg studs.
4. The design of the clamping plate roller reduces the friction force when contacting with the top block, so that the fixed-point structure fixed clamping plate can more effectively lift up and down.
5. In the invention, the fixed point structure is connected with the main body through the hinge, the fixed point structure main body is embedded into the main body, the fixed point structure is also connected with the main body through the connecting rod, and the rotation of the hinge is limited and controlled. The connecting rod has the functions of connecting, supporting and stabilizing after being matched with the fixed clamping plate of the sliding block and the limiting plate and the landing leg nails, so that the main body is more stable.
Drawings
FIG. 1 is a schematic view of the present invention in use;
FIG. 2 is a schematic elevational view of the present invention;
FIG. 3 is a schematic view of the invention in a retracted state;
FIG. 4 is a schematic perspective view of a fixed point structure of the present invention;
FIG. 5 is an enlarged schematic view of portion A of FIG. 1 in accordance with the present invention;
FIG. 6 is a schematic cross-sectional view of a leg nail, a limiting plate, a spring and a fixed point structure fixing clamping plate combination in the invention;
FIG. 7 is a schematic view of the leg studs of the present invention mated with a rubber retaining sleeve;
FIG. 8 is a schematic perspective view of an inspection identifying pin provided with the present invention;
FIG. 9 is a perspective view of a slider fixing clip provided in the present invention;
In the figure: 1. a main body; 11. a main body base; ; 12. a fixed point structure groove; 121. a sliding block movable groove; 1211. a clamping plate groove is fixed by the sliding block; 122. a slide rail; 123. a slide block; 124. the first fixed point structure is used for fixing the clamping plate groove; 13. a battery placing bin; 14. a vial; 15. a tape motor switch; 16. a connecting rod; 2. a fixed point structure; 21. a fixed point structural body; 211. a leg nail placing groove; 212. a limit plate; 213. the second fixed-point structure is used for fixing the clamping plate groove; 22. a ruler box; 221. a shaft lever placing rack; 222. a baffle; 223. a ruler box cover plate; 23. a small roller; 24. a large roller; 25. a transmission belt; 26. ruler; 261. a ruler ring; 262. locating and census holes; 27. connecting the plates; 28. leg nails; 281. a top block; 282. a rubber fixing sleeve; 29. fixing the clamping plate by a fixed point structure; 291. a clamping plate roller; 292. a convex plate; 293. a spring; 3. a base; 31. a base tray; 32. fixing the column; 33. a compass groove; 34. a compass; 35. a buffer tray; 36. a fixed rod; 4. reconnaissance identification nails; 5. the clamping plate is fixed by the sliding block.
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.
Example 1
As shown in fig. 1-9, the grassland screening pointing device of the present embodiment includes a main body 1, a pointing structure 2, and a base 3, wherein the base 3 is disposed below the main body 1;
The main body 1 comprises a main body base 11 and a connecting rod 16, wherein a fixed column hole is formed in the middle of the main body base 11, and a fixed clamping head groove is formed in the top end of the fixed column hole; three fixed point structure grooves 12 are formed in the outer surface of the main body 1, sliding block movable grooves 121 are formed in two sides of the fixed point structure grooves 12, a plurality of sliding block fixing clamping plate grooves 1211 are formed in two sides of the sliding block movable grooves 121, sliding rails 122 are connected in the sliding block movable grooves 121, sliding blocks 123 are sleeved on the sliding rails 122, first fixed point structure fixing clamping plate grooves 124 are formed in the fixed point structure grooves 12, and hinge grooves are formed in the lower ends of the fixed point structure grooves 12; the upper end of the main body 1 is provided with a battery placing bin 13, the top of the battery placing bin 13 is fixedly connected with a level bubble 14, and the top of the battery placing bin 13 is also provided with three tape motor switches 15;
The fixed point structure 2 comprises a fixed point structure main body 21, a ruler box 22 is fixedly connected to the upper surface of the fixed point structure main body 21, two rows of shaft lever placing frames 221 are respectively arranged at the front end and the rear end in the ruler box 22, and two rows of baffles 222 are arranged in the middle of the shaft lever placing frames 221; the shaft lever placing rack 221 is sleeved with a shaft lever, the shaft lever of the front end shaft lever placing rack 221 is sleeved with a small roller 23, the shaft lever of the rear end shaft lever placing rack 221 is sleeved with a large roller 24, the small roller 23 and the large roller 24 are connected through a transmission belt 25, one end fixed with a ruler 26 is connected with the transmission belt 25, the other end extends to the outside of a ruler outlet by bypassing the transmission belt 25 and is connected with a ruler ring 261, one side of the large roller 24 is provided with a motor, a ruler box cover plate 223 is arranged above the ruler box 22, and two sides of the ruler box 22 are fixedly connected with connecting plates 27; a hinge groove is formed in one side of the upper surface of the fixed-point structure main body 21; the lower surface of the fixed point structure main body 21 is provided with a supporting leg nail placing groove 211, a limiting plate block 212 is arranged in the supporting leg nail placing groove 211, a shaft seat is fixedly connected to the limiting plate block 212, the shaft seat is movably connected with a supporting leg nail 28, one side of the supporting leg nail placing groove 211 is provided with a second fixed point structure fixing clamping plate groove 213, a fixed point structure fixing clamping plate 29 is sleeved in the second fixed point structure fixing clamping plate groove 213, the lower end of the fixed point structure fixing clamping plate 29 is provided with a shaft lever, and a clamping plate roller 291 is sleeved on the shaft lever;
the base 3 comprises a base tray 31, a fixed column 32 is fixedly connected to the upper surface of the base tray 31, a fixed chuck is arranged at the top end of the fixed column 32, a compass groove 33 is formed in the base tray 31, a compass 34 is embedded in the compass groove 33, and the north direction of the compass 34 is the same as the ruler outlet direction of one of the fixed point structures 2; the buffer disc 35 is fixedly connected to the lower surface of the base tray 31, and the design of the structure enables the device to be relatively stable in the use process, and the fixing rod 36 is fixedly connected to the lower surface of the buffer disc 35.
Preferably, the main body 1 and the fixed point structure 2 are connected through a hinge, and the fixed point structure main body 21 is embedded in the main body 1; the main body 1 and the base 3 are matched with the fixed column 32 through the fixed column hole, the fixed clamping head groove is matched with the fixed clamping head to be combined and clamped, and the design of the structure ensures that the equipment is prevented from rotating in the use process; the connecting rod 16 has one end connected to the slider 123 and the other end connected to the connecting plate 27.
Preferably, the shaft lever of the large roller 24 and the output shaft of the motor are provided with belt pulleys, and the two belt pulleys are connected through a V-belt; the motor is electrically connected with the battery and the tape motor switch 15 through a wire; the design of this structure has reduced artifical receipts chi, labour saving and time saving, and is more convenient.
Preferably, the leg nails 28 are conical, and the top parts of the leg nails 28 are fixedly connected with the top blocks 281; a convex plate 292 is fixedly connected to the fixed point structure fixing clamping plate 29, and a spring 293 is arranged between the convex plate 292 and the inner wall of the fixed point structure main body 21; a rubber fixing sleeve 282 fixedly connected with the supporting leg nails 28 is arranged on one side of the supporting leg nail placing groove 211; one side of the top block 281 is attached to the clamping plate roller 291, and the friction force when the structure contacts with the top block is reduced, so that the fixed-point structure fixes the clamping plate to lift up and down more effectively; the other side of the top block 281 is matched with the limit plate 212.
Preferably, the center of the fixed rod 36 is a fixed point position; the zero point of the ruler 26 is a designated point location, and fixed-point census holes 262 are formed in the ruler 26 every other meter.
Preferably, the pointing device is also provided with a plurality of survey identification nails 4 and a slider fixing clamping plate 5; above the investigation identifying nails 4 are arranged identification plates representing different positions.
Preferably, the base tray 31, the buffer tray 35, and the fixing rod 36 are integrally formed.
The application method of the invention comprises the following steps: after the invention is brought to a specified point, the fixing rod 36 is vertically inserted into the ground, the compass 34 is observed after the fixing rod 36 is fully inserted into the ground, the compass is rotated and adjusted according to a required direction and then is inserted downwards, the main body 1 is sleeved on the fixing column 32 after the whole buffer disc 35 is buried, the fixing column 32 is matched with a fixing column hole, and the fixing clamp is matched with a fixing clamp groove so as to fix the main body 1 on the base 3;
Then, the level bubble 14 above the main body 1 is observed to be adjusted to be horizontal, the tip parts of the supporting leg nails 28 are outwards broken, at the moment, the fixed point structure fixing clamping plate 29 descends under the reaction force of the springs 293 to realize the fixation release of the fixed point structure 2 and the main body 1, the fixed point structure 2 rotates through a hinge, at the moment, the supporting leg nails 28 are outwards broken to be limited, then the supporting leg nails are inserted into the ground until the fixed point structure 2 is parallel to the ground, and then the sliding block fixing clamping plate 5 is inserted into the sliding block fixing clamping plate groove 1211;
the ruler ring 261 exposed at one side of the ruler box 22 above the fixed point structure 2 is pulled out linearly, and formation investigation can be started every one meter at the moment; the ruler 26 penetrates into the investigation identifying nails 4 at fixed points at intervals of one meter to carry out soil structure investigation, after each point is investigated, the investigation identifying nails 4 are all pulled out and retracted, the ruler 26 can be recovered after being returned to a designated point to press down the tape motor switch 15, manual winding is not needed, and the motor is turned off when the ruler ring 261 returns to the ruler hole outlet position.
The ruler 26 is recovered, the fixed point structure 2 is lifted upwards, the exposed supporting leg nails 28 are grasped and pushed backwards upwards, the supporting leg nails 28 are put back into the supporting leg nail placing grooves 211 when the fixed point structure 2 is embedded into the main body 1, the tips of the supporting leg nails 28 are fixed into the rubber fixing sleeves 282 for fixing, meanwhile, one side of the top block 281 above the supporting leg nails 28 is separated from the limiting plate 212, after a circle is formed, the road is attached to the clamping plate roller 291 and acted upwards, and the fixed point structure fixing clamping plate 29 is lifted to the top side to be matched with the first fixed point structure fixing clamping plate groove 124 to form the fixed point structure 2 to be fixed in the main body 1; finally, the main body 1 is pulled upwards, and then the base 3 is pulled out.

Claims (7)

1. The utility model provides a grassland is pointing device for census, includes main part (1), fixed point structure (2), base (3), main part (1) below is equipped with base (3), its characterized in that:
The main body (1) comprises a main body base (11) and a connecting rod (16), wherein a fixed column hole is formed in the middle of the main body base (11), and a fixed clamping head groove is formed in the top end of the fixed column hole; three fixed point structure grooves (12) are formed in the outer surface of the main body (1), sliding block movable grooves (121) are formed in two sides of each fixed point structure groove (12), a plurality of sliding block fixed clamping plate grooves (1211) are formed in two sides of each sliding block movable groove (121), sliding rails (122) are connected in the sliding block movable grooves (121), sliding blocks (123) are sleeved on the sliding rails (122), first fixed point structure fixed clamping plate grooves (124) are formed in the fixed point structure grooves (12), and hinge grooves are formed in the lower ends of the fixed point structure grooves (12); the upper end of the main body (1) is provided with a battery placing bin (13), the top of the battery placing bin (13) is fixedly connected with a level bubble (14), and the top of the battery placing bin (13) is also provided with three tape motor switches (15);
The fixed point structure (2) comprises a fixed point structure main body (21), a ruler box (22) is fixedly connected to the upper surface of the fixed point structure main body (21), two rows of shaft rod placing frames (221) are respectively arranged at the front end and the rear end in the ruler box (22), and two rows of baffle plates (222) are arranged in the middle of the shaft rod placing frames (221); the novel ruler is characterized in that the shaft rod is sleeved on the shaft rod placing rack (221), a small roller (23) is sleeved on the shaft rod of the front end shaft rod placing rack (221), a large roller (24) is sleeved on the shaft rod of the rear end shaft rod placing rack (221), the small roller (23) and the large roller (24) are connected through a driving belt (25), one end fixed with a ruler (26) is connected with the driving belt (25), the other end of the ruler extends to the outside of a ruler outlet to be connected with a ruler ring (261), a motor is arranged on one side of the large roller (24), a ruler cover plate (223) is arranged above the ruler box (22), and connecting plates (27) are fixedly connected to two sides of the ruler box (22); a hinge groove is formed in one side of the upper surface of the fixed-point structure main body (21); the landing leg nail placing groove (211) is formed in the lower surface of the fixed point structure main body (21), a limiting plate block (212) is arranged in the landing leg nail placing groove (211), a shaft seat is fixedly connected to the limiting plate block (212), the shaft seat is movably connected with a landing leg nail (28), a second fixed point structure fixing clamping plate groove (213) is formed in one side of the landing leg nail placing groove (211), a fixed point structure fixing clamping plate (29) is sleeved in the second fixed point structure fixing clamping plate groove (213), a shaft rod is arranged at the lower end of the fixed point structure fixing clamping plate (29), and a clamping plate roller (291) is sleeved on the shaft rod;
The base (3) comprises a base tray (31), a fixing column (32) is fixedly connected to the upper surface of the base tray (31), a fixing clamp head is arranged at the top end of the fixing column (32), a compass groove (33) is formed in the base tray (31), a compass (34) is embedded in the compass groove (33), and the north direction of the compass (34) is in the same direction as the ruler outlet direction of one of the fixed point structures (2); the base tray (31) lower surface fixedly connected with buffer disk (35), buffer disk (35) lower surface fixedly connected with dead lever (36).
2. A grassland screening pointing device as claimed in claim 1, wherein: the main body (1) and the fixed point structure (2) are connected through a hinge, and the fixed point structure main body (21) is embedded into the main body (1); the main body (1) and the base (3) are matched with the fixed column (32) through the fixed column hole, and the fixed clamping head groove is matched with the fixed clamping head to be combined and clamped; one end of the connecting rod (16) is connected with the sliding block (123), and the other end is connected with the connecting plate (27).
3. A grassland screening pointing device as claimed in claim 1, wherein: the shaft lever of the large roller (24) and the output shaft of the motor are respectively provided with a belt pulley, and the two belt pulleys are connected through a V-belt; the motor is electrically connected with the battery and the tape motor switch (15) through a lead.
4. A grassland screening pointing device as claimed in claim 1, wherein: the landing leg nails (28) are conical, and the tops of the landing leg nails (28) are fixedly connected with the top blocks (281); a convex plate (292) is fixedly connected to the fixed point structure fixing clamping plate (29), and a spring (293) is arranged between the convex plate (292) and the inner wall of the fixed point structure main body (21); a rubber fixing sleeve (282) fixedly connected with a supporting leg nail (28) is arranged on one side of the supporting leg nail placing groove (211); one side of the top block (281) is attached to the clamping plate roller (291); the other side of the top block (281) is matched with the limit plate (212).
5. A grassland screening pointing device as claimed in claim 1, wherein: the center of the fixed rod (36) is a fixed point position; the zero point of the ruler (26) is a designated point position, and fixed-point census holes (262) are formed in the ruler (26) every other meter.
6. A grassland screening pointing device as claimed in claim 1, wherein: the fixed point equipment is also provided with a plurality of investigation identification nails (4) and a slide block fixing clamping plate (5); and a signboard representing different positions is arranged above the investigation identification nail (4).
7. A grassland screening pointing device as claimed in claim 1, wherein:
The base tray (31), the buffer tray (35) and the fixing rod (36) are of an integrated structure.
CN202111410937.2A 2021-11-25 2021-11-25 Grassland is pointing device for general investigation Active CN113984029B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111410937.2A CN113984029B (en) 2021-11-25 2021-11-25 Grassland is pointing device for general investigation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111410937.2A CN113984029B (en) 2021-11-25 2021-11-25 Grassland is pointing device for general investigation

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Publication Number Publication Date
CN113984029A CN113984029A (en) 2022-01-28
CN113984029B true CN113984029B (en) 2024-05-17

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115014309B (en) * 2022-08-05 2022-10-28 广东工业大学 Measuring point nailing marking device

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KR102130436B1 (en) * 2020-02-14 2020-07-06 김은경 System of preventing shock in staff geodetic surveying
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CN213812309U (en) * 2021-01-22 2021-07-27 许镇楷 Coordinate lofting and positioning device for building engineering measurement

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Publication number Priority date Publication date Assignee Title
CN208237390U (en) * 2018-05-29 2018-12-14 方超 Multi-purpose stand is used in a kind of power engineering prospecting
KR102081915B1 (en) * 2019-09-09 2020-02-26 이완복 Accuracy geodetic surveying method with staff
CN211178475U (en) * 2020-01-19 2020-08-04 张虎牛 Surveying, mapping and lofting device
KR102130436B1 (en) * 2020-02-14 2020-07-06 김은경 System of preventing shock in staff geodetic surveying
CN213812309U (en) * 2021-01-22 2021-07-27 许镇楷 Coordinate lofting and positioning device for building engineering measurement

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