CN114413825B - Support stable city planning survey and research and use measuring apparatu - Google Patents
Support stable city planning survey and research and use measuring apparatu Download PDFInfo
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- CN114413825B CN114413825B CN202210314535.0A CN202210314535A CN114413825B CN 114413825 B CN114413825 B CN 114413825B CN 202210314535 A CN202210314535 A CN 202210314535A CN 114413825 B CN114413825 B CN 114413825B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/28—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring areas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to the technical field of measuring instruments, and discloses a stably-supported measuring instrument for city planning investigation, which comprises an area measuring instrument, wherein an installation shell is arranged outside the area measuring instrument; threaded rod and first gear fixed connection, first gear and the meshing of first serration plate set up a plurality of sucking discs at the clamp plate lower extreme, sucking disc and air duct intercommunication, air duct and connecting pipe intercommunication, connecting pipe and exhaust tube intercommunication, open the opening when charging, are convenient for make the clamp plate move down, and the sucking disc is inhaled mutually with placing of installation casing, fixes the installation casing.
Description
Technical Field
The invention relates to the technical field of measuring instruments, in particular to a stably-supported measuring instrument for urban planning and research.
Background
The area measuring instrument is perfectly combined by a high-precision GPS positioning system, an accurate area calculating method and an intelligent palm computer system, can simultaneously obtain data such as measuring area, perimeter, distance and the like by one-time measurement, can call measured area graphs and all measured data at any time, and is convenient for file storage.
The current area measuring apparatu needs external charging wire to charge, and the socket of measuring apparatu exposes in the external world always, and easy deposition in the use, area measuring apparatu directly put on desk or stool when charging, if bump it with carelessness on the ground, break easily, and the socket of measuring apparatu also can appear dragging with the interface of charging wire for socket and interface receive great wearing and tearing.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a stably-supported measuring instrument for city planning and research, which solves the problems that the existing area measuring instrument cannot be fixed during charging and the socket for charging is consistently exposed outside for dust deposition.
In order to achieve the purpose, the invention provides the following technical scheme: a stably supported measuring instrument for city planning investigation comprises an area measuring instrument, wherein an installation shell is arranged on the outer side of the area measuring instrument, a first glass plate corresponding to the position of a display screen of the area measuring instrument is embedded at the upper end of the installation shell, a transparent rubber film corresponding to the position of a key of the area measuring instrument is further embedded at the upper end of the installation shell, a second glass plate is embedded at one side of the installation shell, an installation groove is formed at the lower end of the installation shell, an installation cavity and a connection cavity are formed in the installation shell, a sliding cavity communicated with the connection cavity is formed at one side of the installation shell, an opening communicated with the interior of the installation shell is further formed at one side of the installation shell, and a connecting groove is formed in the side wall of the opening;
a fixing mechanism is arranged in the mounting groove, part of the fixing mechanism is located in the mounting cavity, the fixing mechanism comprises a pressing plate connected with the side wall of the mounting groove in a sliding mode, a first gear connected with the inner wall of the mounting cavity in a rotating mode and a connecting pipe, an air pumping mechanism is arranged in the mounting cavity and comprises a connecting cylinder fixedly connected with the inner wall of the mounting cavity and a second gear connected with the inner wall of the mounting cavity in a rotating mode, one end of the connecting cylinder is communicated with an air pumping pipe, and the air pumping pipe is communicated with the connecting pipe; the connecting mechanism is further arranged in the mounting cavity and comprises a first sawtooth plate, a third gear, two winding shafts, a spring rotating shaft and an inclined block, wherein the first sawtooth plate is connected with the inner wall of the mounting cavity in a sliding mode, the third gear is connected with the inner wall of the mounting cavity in a rotating mode, the two winding shafts are connected with the inner wall of the connecting cavity in a rotating mode, the spring rotating shaft is connected with the side wall of the connecting groove in a rotating mode, the inclined block is located in the connecting cavity, the first sawtooth plate is meshed with the first gear, the third gear is meshed with the second gear, a first spring is sleeved on the outer side of the inclined block, one end of the first spring is fixedly connected with the inclined block, and the other end of the first spring is fixedly connected with the side wall of the connecting cavity; the connection intracavity is provided with latch mechanism, latch mechanism include with connection chamber lateral wall fixed connection's second spring, second spring one side fixedly connected with and the limiting plate that the sloping block position corresponds.
Furthermore, the fixing mechanism comprises a threaded rod in threaded connection with the pressing plate, the threaded rod is fixedly connected with the first gear, a plurality of suckers are arranged at the lower end of the pressing plate, air guide pipes are arranged on the suckers in a communicated mode, and the air guide pipes are communicated with the connecting pipe.
Further, the air exhaust mechanism comprises a piston located in the connecting cylinder, one end of the piston is fixedly connected with a second serrated plate, one side of the second serrated plate is meshed with a fourth gear, the fourth gear is rotatably connected with the inner wall of the installation cavity, and the fourth gear is meshed with the second gear.
Further, coupling mechanism includes the first wire winding pole with third gear one end fixed connection, the winding is provided with first stay cord on the first wire winding pole, one of them spool and spring spindle fixed connection are walked around to first stay cord, the fixed cover in the spring spindle outside is equipped with the closing plate, first wire winding pole outer end fixedly connected with second wire winding pole, the winding is provided with the second stay cord on the second wire winding pole, another spool and sloping block fixed connection are walked around to the second stay cord, first serration board upper end fixedly connected with and third gear engagement's sawtooth, third gear other end fixedly connected with turning handle, the one end threaded connection that the turning handle is located the installation casing outside has the bolt.
Further, the diameter of the first winding rod is larger than that of the second winding rod.
Further, the clamping mechanism comprises a connecting plate fixedly connected with the limiting plate, the outer end of the connecting plate is fixedly connected with a wire clamp, and the wire clamp is located in the opening.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the first pull rope is wound on the first winding rod at one end of the third gear, the first pull rope bypasses one of the winding shafts and is fixedly connected with the spring rotating shaft, the sealing plate is fixedly sleeved outside the spring rotating shaft, the spring rotating shaft is rotatably connected with the side wall of the connecting groove, when charging is required, the sealing plate is rotated to open the opening, when charging is not required, the opening can be closed, and dust is prevented from entering the mounting shell.
2. According to the invention, the threaded rod is connected with the pressing plate through the threads, the threaded rod is fixedly connected with the first gear, the first gear is meshed with the first sawtooth plate, the plurality of suckers are arranged at the lower end of the pressing plate, the suckers are communicated with the air guide pipe, the air guide pipe is communicated with the connecting pipe, and the connecting pipe is communicated with the exhaust pipe, so that when the opening is opened for charging, the pressing plate can conveniently move downwards, and the suckers attract the installation shell to fix the installation shell.
3. According to the area measuring instrument, the second spring is arranged in the connecting cavity, one side of the second spring is fixedly connected with the limiting plate corresponding to the inclined block, the wire clamp is fixedly connected to the outer end of the connecting plate at one end of the limiting plate, external charging wires can be clamped and fixed, and the phenomenon that an interface of the external charging wires is separated from a socket of the area measuring instrument due to pulling of external force is avoided.
Drawings
FIG. 1 is a schematic top view of a stably supported survey meter for urban planning and research in an embodiment of the present invention;
FIG. 2 is a schematic view of the structure in the direction A-A of FIG. 1;
FIG. 3 is an enlarged schematic view of F of FIG. 2;
FIG. 4 is an enlarged schematic view of G of FIG. 2;
FIG. 5 is a schematic view of the structure in the direction E-E of FIG. 2;
FIG. 6 is a schematic view of the structure in the direction B-B in FIG. 2;
FIG. 7 is a schematic view of the structure in the direction C-C in FIG. 2;
FIG. 8 is a schematic view of the structure of FIG. 2 taken along the direction D-D;
FIG. 9 is an enlarged schematic view of H in FIG. 8;
FIG. 10 is a schematic bottom view of a stably supported survey meter for urban planning and research in an embodiment of the present invention;
FIG. 11 is a schematic front sectional view of an air pumping mechanism according to an embodiment of the present invention;
FIG. 12 is a schematic front sectional view of a fixing mechanism according to an embodiment of the present invention;
FIG. 13 is a schematic front sectional view of a connecting mechanism according to an embodiment of the present invention;
FIG. 14 is a schematic front sectional view of a latch mechanism according to an embodiment of the present invention;
FIG. 15 is a schematic side view of a stably supported survey meter for urban planning and research in an embodiment of the present invention;
FIG. 16 is an enlarged schematic view of I of FIG. 15;
FIG. 17 is a schematic view showing a connection structure of a third gear and a stem in the embodiment of the present invention.
In the drawings: 1. installing a shell; 2. an air extraction mechanism; 3. a fixing mechanism; 4. a connecting mechanism; 5. a clamping mechanism; 6. an opening; 7. mounting grooves; 8. a second glass plate; 9. a transparent rubber film; 10. a first glass plate; 11. connecting grooves; 12. a mounting cavity; 13. a connecting cavity; 14. a slide chamber; 15. an area measuring instrument; 201. a connecting cylinder; 202. a piston; 203. an air exhaust pipe; 204. a second serrated plate; 205. a fourth gear; 206. a second gear; 301. pressing a plate; 302. a suction cup; 303. an air duct; 304. a threaded rod; 305. a connecting pipe; 306. a first gear; 401. a third gear; 402. a first winding rod; 403. a second winding rod; 404. a second pull cord; 405. a first pull cord; 406. a spool; 407. a first spring; 408. a sloping block; 409. a spring shaft; 410. a sealing plate; 411. saw teeth; 412. a first serrated plate; 413. a handle is rotated; 414. a bolt; 501. a connecting plate; 502. wire clamps; 503. a second spring; 504. and a limiting plate.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In an embodiment, referring to fig. 1 to 17, a stably supported measuring instrument for city planning research includes an area measuring instrument 15, an installation housing 1 is disposed outside the area measuring instrument 15, a first glass plate 10 corresponding to a display screen of the area measuring instrument 15 is embedded at an upper end of the installation housing 1, a transparent rubber film 9 corresponding to a key position of the area measuring instrument 15 is further embedded at an upper end of the installation housing 1, a second glass plate 8 is embedded at one side of the installation housing 1, an installation groove 7 is formed at a lower end of the installation housing 1, an installation cavity 12 and a connection cavity 13 are formed inside the installation housing 1, a sliding cavity 14 communicated with the connection cavity 13 is formed at one side of the installation housing 1, an opening 6 communicated with the inside of the installation housing 1 is further formed at one side of the installation housing 1, and a connection groove 11 is formed on a side wall of the opening 6; a fixing mechanism 3 is arranged in the mounting groove 7, part of the fixing mechanism 3 is positioned in the mounting cavity 12, the fixing mechanism 3 comprises a pressing plate 301 connected with the side wall of the mounting groove 7 in a sliding manner, a first gear 306 connected with the inner wall of the mounting cavity 12 in a rotating manner and a connecting pipe 305, an air extracting mechanism 2 is arranged in the mounting cavity 12, the air extracting mechanism 2 comprises a connecting cylinder 201 fixedly connected with the inner wall of the mounting cavity 12 and a second gear 206 connected with the inner wall of the mounting cavity 12 in a rotating manner, one end of the connecting cylinder 201 is communicated with an air extracting pipe 203, and the air extracting pipe 203 is communicated with the connecting pipe 305; a connecting mechanism 4 is further arranged in the mounting cavity 12, the connecting mechanism 4 comprises a first sawtooth plate 412 connected with the inner wall of the mounting cavity 12 in a sliding manner, a third gear 401 connected with the inner wall of the mounting cavity 12 in a rotating manner, two winding shafts 406 connected with the inner wall of the connecting cavity 13 in a rotating manner, a spring rotating shaft 409 connected with the side wall of the connecting groove 11 in a rotating manner, and an inclined block 408 located in the connecting cavity 13, the first sawtooth plate 412 is meshed with the first gear 306, the third gear 401 is meshed with the second gear 206, a first spring 407 is sleeved on the outer side of the inclined block 408, one end of the first spring 407 is fixedly connected with the inclined block 408, and the other end of the first spring 407 is fixedly connected with the side wall of the connecting cavity 13; a clamping mechanism 5 is arranged in the connecting cavity 13, the clamping mechanism 5 comprises a second spring 503 fixedly connected with the side wall of the connecting cavity 13, and a limit plate 504 corresponding to the inclined block 408 is fixedly connected to one side of the second spring 503.
The connecting mechanism 4 comprises a first winding rod 402 fixedly connected with one end of a third gear 401, a first pull rope 405 is wound on the first winding rod 402, the first pull rope 405 is fixedly connected with a spring rotating shaft 409 by bypassing one winding shaft 406, a sealing plate 410 is fixedly sleeved outside the spring rotating shaft 409, the outer end of the first winding rod 402 is fixedly connected with a second winding rod 403, a second pull rope 404 is wound on the second winding rod 403, the second pull rope 404 is fixedly connected with a sloping block 408 by bypassing the other winding shaft 406, the upper end of the first sawtooth plate 412 is fixedly connected with a sawtooth 411 meshed with the third gear 401, the other end of the third gear 401 is fixedly connected with a rotating handle 413, one end of the rotating handle 413 positioned outside the mounting shell 1 is in threaded connection with a bolt 414, when charging is needed, the sealing plate 410 is rotated to open the opening 6, when charging is not needed, the opening 6 can be closed to prevent dust from entering the mounting shell 1, when the opening 6 is opened, the second pull rope 404 can move the inclined block 408 downwards, so that the limit plate 504 is not limited.
The diameter of the first winding rod 402 is larger than that of the second winding rod 403, so that when the sealing plate 410 rotates to open the opening 6, the inclined block 408 just moves downwards, and the limiting plate 504 is not limited.
The working principle is as follows: when the area measuring instrument 15 needs to be charged, the installation shell 1 is placed on a desktop, the installation shell 1 is pressed by one hand, the rotating handle 413 is rotated by the other hand, the rotating handle 413 drives the third gear 401 to rotate, the third gear 401 drives the first winding rod 402 to rotate, the first winding rod 402 winds the first pull rope 405, the spring rotating shaft 409 is pulled by the first pull rope 405 to rotate, the sealing plate 410 is driven by the spring rotating shaft 409 to rotate, and the opening 6 is not sealed by the rotation of the sealing plate 410;
the first winding rod 402 rotates and simultaneously drives the second winding rod 403 to rotate, the second winding rod 403 is wound on the second pulling rope 404, the second pulling rope 404 pulls the inclined block 408 to move downwards, the first spring 407 is compressed, the inclined block 408 moves downwards and does not limit the limiting plate 504, the second spring 503 pushes the limiting plate 504 to move, the limiting plate 504 drives the connecting plate 501 to move, the connecting plate 501 drives the wire clamp 502 to move out of the mounting shell 1, then an external charging wire is clamped on the wire clamp 502, and an interface of the external charging wire penetrates through the opening 6 and is inserted into an insertion opening of the area measuring instrument 15;
when the third gear 401 rotates, the first sawtooth plate 412 is driven to move through the sawteeth 411, the first sawtooth plate 412 drives the first gear 306 to rotate, the threaded rod 304 is driven to rotate by the first gear 306, the pressing plate 301 moves downwards due to the rotation of the threaded rod 304, and the sucking disc 302 is extruded and attracted with the table top to fix the installation shell 1 due to the downward movement of the pressing plate 301;
when the third gear 401 rotates, the second gear 206 is driven to rotate, the second gear 206 drives the fourth gear 205 to rotate, the fourth gear 205 drives the second serrated plate 204 to move, the second serrated plate 204 pulls the piston 202 to move, air in the sucker 302 is pumped into the connecting cylinder 201 through the air duct 303, the connecting pipe 305 and the air suction pipe 203, the fixing effect is better, and then the rotating bolt 414 abuts against the mounting shell 1 to fix the rotating handle 413;
after charging is finished, an interface of an external charging wire is separated from a socket of the area measuring instrument 15, the charging wire is separated from the wire clamp 502, then the bolt 414 is rotated to be not contacted with the mounting shell 1, and then the rotating handle 413 is rotated reversely, according to the reverse operation of the steps, the sealing plate 410 is rotated and reset to seal the opening 6 under the action of the spring rotating shaft 409; then the wire clamp 502 is pushed to push the connecting plate 501 into the connecting cavity 13, the second spring 503 is compressed, and the inclined block 408 moves upwards to limit the limiting plate 504 under the action of the first spring 407;
when the rotating handle 413 is reversed, the third gear 401 is reversed, and according to the reverse operation of the above steps, the pressing plate 301 moves upwards to separate the suction cup 302 from the table, and simultaneously the piston 202 is reset to push out the gas in the connecting cylinder 201.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 (6)
1. The utility model provides a support stable city planning measuring apparatu for investigation, includes area measurement appearance (15), its characterized in that:
an installation shell (1) is arranged on the outer side of the area measuring instrument (15), a first glass plate (10) corresponding to the position of a display screen of the area measuring instrument (15) is embedded at the upper end of the installation shell (1), the upper end of the mounting shell (1) is also embedded with a transparent rubber film (9) corresponding to the key position of the area measuring instrument (15), a second glass plate (8) is embedded at one side of the mounting shell (1), a mounting groove (7) is arranged at the lower end of the mounting shell (1), an installation cavity (12) and a connecting cavity (13) are arranged in the installation shell (1), one side of the mounting shell (1) is provided with a sliding cavity (14) communicated with the connecting cavity (13), an opening (6) communicated with the inside of the mounting shell (1) is further formed in one side of the mounting shell (1), and a connecting groove (11) is formed in the side wall of the opening (6);
a fixing mechanism (3) is arranged in the mounting groove (7), part of the fixing mechanism (3) is located in the mounting cavity (12), the fixing mechanism (3) comprises a pressing plate (301) in sliding connection with the side wall of the mounting groove (7), a first gear (306) and a connecting pipe (305), the first gear is rotationally connected with the inner wall of the mounting cavity (12), an air extracting mechanism (2) is arranged in the mounting cavity (12), the air extracting mechanism (2) comprises a connecting cylinder (201) fixedly connected with the inner wall of the mounting cavity (12) and a second gear (206) rotationally connected with the inner wall of the mounting cavity (12), one end of the connecting cylinder (201) is communicated with an air extracting pipe (203), and the air extracting pipe (203) is communicated with the connecting pipe (305);
the mounting cavity (12) is internally provided with a connecting mechanism (4), the connecting mechanism (4) comprises a first sawtooth plate (412) connected with the inner wall of the mounting cavity (12) in a sliding manner, a third gear (401) connected with the inner wall of the mounting cavity (12) in a rotating manner, two winding shafts (406) connected with the inner wall of the connecting cavity (13) in a rotating manner, a spring rotating shaft (409) connected with the side wall of the connecting groove (11) in a rotating manner, and an inclined block (408) positioned in the connecting cavity (13), the first sawtooth plate (412) is meshed with the first gear (306), the third gear (401) is meshed with the second gear (206), the inclined block (408) is sleeved with a first spring (407), one end of the first spring (407) is fixedly connected with the inclined block (408), and the other end of the first spring (407) is fixedly connected with the side wall of the connecting cavity (13);
be provided with clamping mechanism (5) in connecting chamber (13), clamping mechanism (5) include with connecting chamber (13) lateral wall fixed connection's second spring (503), limiting plate (504) that second spring (503) one side fixedly connected with and sloping block (408) position correspond.
2. The survey meter for urban planning research with stable support according to claim 1, wherein:
fixed establishment (3) include with clamp plate (301) threaded connection's threaded rod (304), threaded rod (304) and first gear (306) fixed connection, clamp plate (301) lower extreme is provided with a plurality of sucking discs (302), the intercommunication is provided with air duct (303) on sucking disc (302), air duct (303) and connecting pipe (305) intercommunication.
3. The survey meter for urban planning research with stable support according to claim 1, wherein:
air exhaust mechanism (2) is including being located piston (202) in connecting cylinder (201), piston (202) one end fixedly connected with second serration plate (204), second serration plate (204) one side meshing is connected with fourth gear (205), fourth gear (205) are connected with installation cavity (12) inner wall rotation, fourth gear (205) and second gear (206) meshing.
4. The survey meter for urban planning research with stable support according to claim 1, wherein:
the connecting mechanism (4) comprises a first winding rod (402) fixedly connected with one end of a third gear (401), a first pull rope (405) is wound on the first winding rod (402), the first pull rope (405) is wound around one of the winding shafts (406) and is fixedly connected with a spring rotating shaft (409), a sealing plate (410) is fixedly sleeved on the outer side of the spring rotating shaft (409), the outer end of the first winding rod (402) is fixedly connected with a second winding rod (403), a second pull rope (404) is wound on the second winding rod (403), the second pull rope (404) winds around the other winding shaft (406) and is fixedly connected with an oblique block (408), the upper end of the first sawtooth plate (412) is fixedly connected with sawteeth (411) meshed with the third gear (401), the other end of the third gear (401) is fixedly connected with a rotating handle (413), and one end of the rotating handle (413) located on the outer side of the mounting shell (1) is connected with a bolt (414) in a threaded mode.
5. The survey meter for urban planning research with stable support according to claim 4, wherein:
the diameter of the first winding rod (402) is larger than the diameter of the second winding rod (403).
6. The survey meter for urban planning research with stable support according to claim 1, wherein:
clamping mechanism (5) including with limiting plate (504) fixed connection's connecting plate (501), connecting plate (501) outer end fixedly connected with fastener (502), fastener (502) are located opening (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314535.0A CN114413825B (en) | 2022-03-29 | 2022-03-29 | Support stable city planning survey and research and use measuring apparatu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314535.0A CN114413825B (en) | 2022-03-29 | 2022-03-29 | Support stable city planning survey and research and use measuring apparatu |
Publications (2)
| Publication Number | Publication Date |
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| CN114413825A CN114413825A (en) | 2022-04-29 |
| CN114413825B true CN114413825B (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210314535.0A Active CN114413825B (en) | 2022-03-29 | 2022-03-29 | Support stable city planning survey and research and use measuring apparatu |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357409B (en) * | 2019-08-09 | 2020-07-24 | 佛山市博觉水晶有限公司 | Protection type glass cutting machine |
| CN215078519U (en) * | 2020-12-18 | 2021-12-10 | 深东健康咨询（上海）有限公司 | Can accomodate backbone curvature electron measurement appearance of charging wire |
| CN112728311A (en) * | 2020-12-24 | 2021-04-30 | 南京咪小多文化科技有限公司 | Propaganda reading device for art supplies and operation method thereof |
| CN214583237U (en) * | 2021-01-29 | 2021-11-02 | 山东省城乡规划设计研究院 | Urban and rural planning measuring device |
| CN113048936B (en) * | 2021-03-17 | 2022-12-13 | 安徽中汇规划勘测设计研究院股份有限公司 | Portable land area measuring instrument for land planning design |
| CN215572899U (en) * | 2021-07-22 | 2022-01-18 | 山东奥荣工程项目管理有限公司 | Building is managed and is used level measurement appearance based on construction |
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