CN207816274U - A kind of land survey supporting and regulating device - Google Patents
A kind of land survey supporting and regulating device Download PDFInfo
- Publication number
- CN207816274U CN207816274U CN201820228245.3U CN201820228245U CN207816274U CN 207816274 U CN207816274 U CN 207816274U CN 201820228245 U CN201820228245 U CN 201820228245U CN 207816274 U CN207816274 U CN 207816274U
- Authority
- CN
- China
- Prior art keywords
- regulating device
- screw
- screwed pipe
- auxiliary
- land survey
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model is related to land survey apparatus fields, especially a kind of land survey supporting and regulating device, including a pedestal, it is equipped with wheel in base bottom, it is equipped with a lifting screw in base bottom center upright, the bottom of the lifting screw is pierced by downwards screw hole by the screw hole of bottom center and is connected with a back taper wedge, the upper end of lifting screw is pierced by base top, bottom dome on the outside of lifting screw is equipped with a T-type annular groove, one and screwed pipe in the T-type of its activity cooperation are equipped in T-type annular groove, screwed pipe, which is screwed by internal thread with lifting screw, in the T-type connect, several support balls abutted against with T-type annular groove bottom are equipped in the bottom groove of screwed pipe in T-type, be connected in T-type on the lateral wall of screwed pipe a driven pulley.Its simple in structure, simple operation can carry out the survey tool of different model and specification quickly support and adjust, and versatile, support effect is good, solves problems of the prior art.
Description
Technical field
The utility model is related to land survey apparatus field, especially a kind of land survey supporting and regulating device.
Background technology
Land survey is with the methods of surveying and remote sensing technology to features such as the topography profile quantity in all kinds of soils
The work for measuring and drawing.Land survey is the important process in land management, including cadastration, topographic survey, soil
The contents such as the reserve land resources investigation such as ground is measured using present situation, prepartion of land degree measures, waste mountain waste.Land survey work has
It is more detail point quantity, the operating features such as required precision height, and precision balance whole in operating area there are certain requirements.
It is required for being supported the water for ensureing whole device on the ground when during carrying out land survey using tape measure or Sopwith staff
Levelling ensures the accuracy of the measurement data during use；At present relatively when carrying out level leveling to components such as Sopwith staffs
It is cumbersome, it is necessary to which leveling and alignment tool are set on each Sopwith staff tool, this results in the structure of existing Sopwith staff to compare
It is more complex while comparatively laborious when in use.Therefore, on some opposed flattened locations in order to simplify operating procedure and measurement
Operation in the process, operating personnel are often measured using easy Sopwith staff, still, easy Sopwith staff some roads not
Because its leveling and adjustment capability are weaker in smooth landform, therefore calibration survey cannot be carried out for special landform well again
Amount, it is clear that existing various Sopwith staffs all not can adapt to the regulating device under different terrain environment, nothing during use
The needs of method effectively meets during land survey.
Utility model content
A kind of land survey supporting and regulating device provided by the utility model, simple in structure, simple operation can be to not
Quickly support is carried out with the survey tool of model and specification and is adjusted, and versatile, support effect is good, more effectively meets
The demand of people, solves problems of the prior art.
Used technical solution is the utility model to solve above-mentioned technical problem：A kind of land survey support adjusting
Device, including a pedestal, wheel is equipped in base bottom, and a lifting screw, the lifting are equipped in base bottom center upright
The bottom of screw rod is pierced by downwards screw hole by the screw hole of bottom center and is connected with a back taper wedge, and the upper end of lifting screw is worn
Go out base top, the bottom dome on the outside of lifting screw is equipped with a T-type annular groove, matches with its activity equipped with one in T-type annular groove
Screwed pipe in the T-type of conjunction, screwed pipe, which is screwed by internal thread with lifting screw, in the T-type connect, the bottom groove of screwed pipe in T-type
The interior support ball abutted against with T-type annular groove bottom equipped with several, be connected in T-type on the lateral wall of screwed pipe a driven belt
Wheel, in the connected rotating servo motor of the top outer of pedestal, be connected a driving pulley on the output shaft of rotating servo motor,
It is connected by belt between the driven pulley and driving pulley, a regulating device is equipped in the top of lifting screw；
Several air-bubble levels are equipped at intervals with along its even circumferential at the top of regulating device, one and rotating servo motor are equipped on pedestal
The power supply of electrical connection；In the side of pedestal handrail is pushed away equipped with one.
The regulating device includes an adjusting platform being arranged above lifting screw, on the pedestal adjusted below platform
Several perpendicular screwed pipes are equipped with along its circumferentially-spaced, one perpendicular screw rod of connection, the top of each perpendicular screwed pipe are screwed in each perpendicular screwed pipe
It is connect with the bottom ball pair for adjusting platform；Two main clamping devices are equipped at the top for adjusting platform, in two main clamping devices
Both sides are respectively equipped with an auxiliary clamping device.
The main clamping device includes a master positioning plate, and level screws one main spiral shell of setting in the threaded hole of master positioning plate
The outer end of bar, the driving screw stretches out master positioning plate and is connected with an annular hand grip；The inside of the driving screw is equipped with a master and supports
Tight plate is equipped with screw thread abutting hole on the outer end face of main abutting plate, horizontal connected one in the middle part of the inner face that screw thread pushes against hole
Spring is pushed against, the fixed sleeving that is coaxially connected on the main abutting plate outer end face on the outside of hole is pushed against in screw thread；In the inner end of driving screw
The outer diameter that is connected is more than the abutting threaded rod of driving screw outer diameter, the front end for pushing against threaded rod extend in fixed sleeving and with institute
Abutting spring is stated to abut against；Be connected a spacing ring on the outer end face of fixed sleeving, and the inner ring of the spacing ring is actively socketed on
On the outside of driving screw.
The auxiliary clamping device includes an auxiliary positioning plate being arranged in a mutually vertical manner with master positioning plate, in auxiliary positioning plate
Threaded hole in level screw setting one auxiliary threaded rod, the inner end of auxiliary threaded rod be connected one push against disk；The auxiliary threaded rod
Outer end be pierced by auxiliary positioning plate and be connected with an auxiliary handle.
A cushion is equipped on the inner face of master positioning plate.
Be connected several elastic bumps on the inner face for pushing against disk.
An Anti-slip cover is equipped on the lateral wall of annular hand grip.
A friction sleeve is equipped on auxiliary handle.
A master shield is respectively fixedly connected at the top of each master positioning plate.
A sub-barrier is respectively fixedly connected at the top of each auxiliary positioning plate.
The utility model has the beneficial effects that simple in structure, simple operation, passes through main clamping device and auxiliary clamping device
The survey tool of different model and specification can quickly be clamped by being adjusted；It is passed by rotating servo motor and belt
Motivation structure, lifting screw coordinate to realize the positioning of whole device, versatile；It can be with by the way that master shield and sub-barrier is arranged
The firm abutting support of bottom progress to being placed on the survey tool in the present apparatus, support effect are good, more effectively meet
The demand of people, solves problems of the prior art.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model.
Fig. 2 is the structural schematic diagram of regulating device in the utility model.
Fig. 3 is the overlooking structure diagram of Fig. 2.
In figure, 1, pedestal；2, wheel；3, lifting screw；4, back taper wedge；5, T-type annular groove；6, screwed pipe in T-type；
7, ball is supported；8, driven pulley；9, rotating servo motor；10, driving pulley；11, belt；12, air-bubble level；13, electric
Source；14, handrail is pushed away；15, platform is adjusted；16, screwed pipe is erected；17, screw rod is erected；18, master positioning plate；19, driving screw；20, annular hand
Handle；21, main abutting plate；22, screw thread pushes against hole；23, spring is pushed against；24, fixed sleeving；25, threaded rod is pushed against；26, spacing ring；
27, auxiliary positioning plate；28, auxiliary threaded rod；29, disk is pushed against；30, auxiliary handle；31, sub-barrier；32, cushion；33, bullet
Property protrusion；34, Anti-slip cover；35, friction sleeve；36, master shield.
Specific implementation mode
In order to clarify the technical characteristics of the invention, below by specific implementation mode, and its attached drawing is combined, to this reality
It is described in detail with novel.
As illustrated in fig. 1-3, a kind of land survey supporting and regulating device, including a pedestal 1 are equipped in 1 bottom of pedestal
Wheel 2 is equipped with a lifting screw 3, the spiral shell that the bottom of the lifting screw 3 passes through bottom center vertically in 1 bottom center of pedestal
Hole is pierced by downwards screw hole and is connected with a back taper wedge 4, and back taper wedge 4 can be conveniently deeply to soil ground
It is interior, so as to which whole device is firmly fixed, stable support is capable of providing when the later stage device being adjusted,
The upper end of lifting screw 3 is pierced by 1 top of pedestal, and the bottom dome in 3 outside of lifting screw is equipped with a T-type annular groove 5, in T-type ring
One and screwed pipe 6 in the T-type of its activity cooperation are equipped in slot 5, screwed pipe 6 passes through internal thread and 3 company of screwing of lifting screw in the T-type
It connects, is equipped with several support balls 7 abutted against with 5 bottom of T-type annular groove, setting support in the bottom groove of screwed pipe 6 in T-type
Ball 7 can be more laborsaving when screwed pipe 6 rotates in T-type, while can play good supporting role, the screwed pipe 6 in T-type
Be connected a driven pulley 8 on lateral wall, in the connected rotating servo motor 9 of the top outer of pedestal 1, in rotating servo motor 9
Output shaft on be connected a driving pulley 10, be connected by belt 11 between the driven pulley 8 and driving pulley 10, will
Motor, which is set as rotating servo motor 9, can easily adjust its rotating speed and positive and negative rotation, so as to pass through rotating servo motor 9
Rotation come realize lifting screw 3 friction speed lifting, so as to adapt to different work requirements, in lifting screw 3
Top be equipped with a regulating device；Several air-bubble levels 12 are equipped at intervals with along its even circumferential at the top of regulating device,
It can quickly ensure the horizontality of adjusting platform 15 by observing each air-bubble level 12 when adjusting, to ensure later stage letter
The measuring parts such as easy Sopwith staff are fixed on horizontal reference when adjusting on platform 15, ensure the accuracy subsequently measured, on pedestal 1
The power supply 13 being electrically connected with rotating servo motor 9 equipped with one uses the general company of series connection between rotating servo motor 9 and power supply 13
Mode is connect, belongs to well-known to those skilled in the art；Handrail 14 is pushed away equipped with one in the side of pedestal 1, in mobile whole device
When by pushing away handrail 14 can be rapidly performed by movement, it is easy to operate.
The regulating device includes an adjusting platform 15 being arranged above lifting screw 3, is being adjusted below platform 15
Its circumferentially-spaced of 1 upper edge of pedestal is equipped with several perpendicular screwed pipes 16, and one perpendicular screw rod 17 of connection is screwed in each perpendicular screwed pipe 16, described each
The top of perpendicular screwed pipe 16 is connect with the bottom ball pair for adjusting platform 15；It is tightly filled equipped with two main folders at the top for adjusting platform 15
It sets, an auxiliary clamping device is respectively equipped in the both sides of two main clamping devices；By main clamping device can to measuring device into
The preliminary main folder of row is tight, is fixedly positioning by coordinating auxiliary clamping device that can realize；Furthermore it is possible to according to different measurements
Clamping is adjusted in the size of tool, versatile.
The main clamping device includes a master positioning plate 18, and level screws one master of setting in the threaded hole of master positioning plate 18
The outer end of screw rod 19, the driving screw 19 stretches out master positioning plate 18 and is connected with an annular hand grip 20；The driving screw 19 it is interior
Side is equipped with a main abutting plate 21, and being equipped with a screw thread on the main outer end face for pushing against plate 21 pushes against hole 22, and hole 22 is pushed against in screw thread
The horizontal abutting spring 23 that is connected, is coaxially connected on main 21 outer end face of abutting plate that screw thread pushes against 22 outside of hole in the middle part of inner face
One fixed sleeving 24；In the inner end of driving screw 19, a connected outer diameter is more than the abutting threaded rod 25 of 19 outer diameter of driving screw, described to support
The front end of tight threaded rod 25 extends in fixed sleeving 24 and is abutted against with the abutting spring 23；In the outer end face of fixed sleeving 24
The inner ring of a upper connected spacing ring 26, the spacing ring 26 is actively socketed on 19 outside of driving screw；When needs are adjusted to being placed on
When measuring device on platform 15 is fixed, two driving screws 19 can be driven close to each other by rotary annular handle 20 or
Deviate from, so as to carry out clamping, positioning for the bottom of various sizes of measuring device；It is normally at measurement work to be clamped
Main abutting plate 21 can be driven to travel forward by driving screw 19 when tool is in contact, when main abutting plate 21 and measuring device, such as Sopwith staff
Bottom connection touch when, after clamping due to abut friction come effect, continue rotary annular handle 20 can drive main spiral shell
Bar 19 pushes the abutting threaded rod 25 of front end to overcome the elastic force for pushing against spring 23 and continue to screw into screw thread and pushes against hole 22, to
It can make securely to connect between main abutting plate 21, so as to ensure to push against effect.
The auxiliary clamping device includes an auxiliary positioning plate 27 being arranged in a mutually vertical manner with master positioning plate 18, fixed in auxiliary
Level screws one auxiliary threaded rod 28 of setting in the threaded hole of position plate 27, and disk 29 is pushed against in the inner end of auxiliary threaded rod 28 connected one；
The outer end of the auxiliary threaded rod 28 is pierced by auxiliary positioning plate 27 and is connected with an auxiliary handle 30；When measuring device is by two main abuttings
After plate 21 pushes against, quickly the other position of measuring device can be carried out by pushing against disk 29 by screwing auxiliary handle 30
It pushes against, to which the bottom of entire measuring device firmly be pushed against, good fixing effect.
A cushion 32 is equipped on the inner face of master positioning plate 18；The frictional force that contact site can be increased, makes contact
Position is more secured.
Be connected several elastic bumps 33 on the inner face for pushing against disk 29；The frictional force of contact site can be increased,
Keep contact site more secured.
It is equipped with an Anti-slip cover 34 on the lateral wall of annular hand grip 20, conveniently exerts oneself.
A friction sleeve 35 is equipped on auxiliary handle 30, convenient for having an effect.
A master shield 36 is respectively fixedly connected at the top of each master positioning plate 18；It can raise high to the abutting of measuring device entirety
Degree, enhances the fastness of abutting.
A sub-barrier 31 is respectively fixedly connected at the top of each auxiliary positioning plate 27；It can raise and measuring device entirety is supported
Height is connect, the fastness of abutting is enhanced.
The present apparatus is pushed to the place for needing to measure in use, first passing through and pushing away handrail 14, in mobile whole device
When by pushing away handrail 14 can be rapidly performed by movement, it is easy to operate；Then power supply 13 and rotating servo motor 9 are opened
It is set to drive lifting screw 3 to decline and back taper wedge 4 is conveniently goed deep into soil ground, so as to
Whole device is firmly fixed, stable support is capable of providing when the later stage device being adjusted；Work as whole device
Bottom fix after, by adjusting the different height of each perpendicular screwed pipe 16 and observing each air-bubble level 12 simultaneously, work as adjustment
The bottom of fixed measuring device to be installed is placed on to the center of top of leveling platform after to level, then passes through rotary annular
Handle 20 can drive two driving screws 19 close to each other or deviate from, so as to the bottom for various sizes of measuring device
Carry out clamping, positioning；Be normally at when survey tool to be clamped is in contact by driving screw 19 can drive main abutting plate 21 to
Preceding movement, when main abutting plate 21 and measuring device, when being touched such as the bottom connection of Sopwith staff, the work next due to abutting friction after clamping
With, continue rotary annular handle 20 can drive driving screw 19 push front end abutting threaded rod 25 overcome push against spring 23
Elastic force and continuing screw into screw thread and push against hole 22, so as to so as to securely be connected between main abutting plate 21, so as to protect
Card pushes against effect；It, can be quickly by supporting by screwing auxiliary handle 30 after measuring device is pushed against by two main abutting plates 21
Tight disk 29 pushes against the other position of measuring device, to which the bottom of entire measuring device firmly be pushed against,
Good fixing effect.The present apparatus is adjusted by main clamping device and auxiliary clamping device can be to the survey of different model and specification
Amount tool is quickly clamped；It is whole to realize by rotating servo motor 9 and 11 transmission mechanism of belt, the cooperation of lifting screw 3
The positioning of a device, it is versatile；Measurement that can be to being placed in the present apparatus by the way that master shield 36 and sub-barrier 31 is arranged
The firm abutting support of bottom progress of tool, support effect are good, more effectively meet the demand of people, solve existing skill
The problem of art.
Above-mentioned specific implementation mode cannot function as the limitation to scope of protection of the utility model, for the skill of the art
For art personnel, any alternate modification or transformation made to the utility model embodiment all fall within the guarantor of the utility model
It protects in range.
Place is not described in detail for the utility model, is the known technology of those skilled in the art of the present technique.
Claims (10)
1. a kind of land survey supporting and regulating device, it is characterised in that：Including a pedestal, it is equipped with wheel in base bottom,
Base bottom center upright is equipped with a lifting screw, and the bottom of the lifting screw is pierced by downwards spiral shell by the screw hole of bottom center
Mono- back taper wedge of Kong Bingyu is connected, and the upper end of lifting screw is pierced by base top, and the bottom dome on the outside of lifting screw is set
There is a T-type annular groove, one and screwed pipe in the T-type of its activity cooperation are equipped in T-type annular groove, screwed pipe passes through internal thread in the T-type
It screws and connect with lifting screw, be equipped with several supports abutted against with T-type annular groove bottom in the bottom groove of screwed pipe in T-type
Ball, in T-type on the lateral wall of screwed pipe be connected a driven pulley, pedestal top outer be connected a rotating servo motor,
Be connected a driving pulley on the output shaft of rotating servo motor, is coordinated by belt between the driven pulley and driving pulley
Connection is equipped with a regulating device in the top of screw rod；At the top of regulating device several bubbles are equipped at intervals with along its even circumferential
Level meter is equipped with a power supply being electrically connected with rotating servo motor on pedestal；In the side of pedestal handrail is pushed away equipped with one.
2. a kind of land survey supporting and regulating device according to claim 1, it is characterised in that：The regulating device packet
An adjusting platform being arranged above lifting screw is included, is adjusting its circumferentially-spaced of pedestal upper edge below platform equipped with several
Perpendicular screwed pipe, screws one perpendicular screw rod of connection in each perpendicular screwed pipe, the top of each perpendicular screwed pipe with the bottom ball pair that adjusts platform
Connection；Two main clamping devices are equipped at the top for adjusting platform, an auxiliary clamp is respectively equipped in the both sides of two main clamping devices
Device.
3. a kind of land survey supporting and regulating device according to claim 2, it is characterised in that：The main clamping device
Including a master positioning plate, level screws one driving screw of setting in the threaded hole of master positioning plate, and the outer end of the driving screw is stretched out
Master positioning plate is simultaneously connected with an annular hand grip；The inside of the driving screw is equipped with a main abutting plate, in the main outer end face for pushing against plate
It is equipped with a screw thread and pushes against hole, horizontal connected one pushes against spring in the middle part of the inner face that screw thread pushes against hole, is pushed against outside hole in screw thread
Coaxially be connected a fixed sleeving on the main abutting plate outer end face of side；An outer diameter is connected more than driving screw outer diameter in the inner end of driving screw
Abutting threaded rod, the front end for pushing against threaded rod extends in fixed sleeving and is abutted against with the abutting spring；In fixation
Be connected a spacing ring on the outer end face of casing, and the inner ring of the spacing ring is actively socketed on the outside of driving screw.
4. a kind of land survey supporting and regulating device according to claim 3, it is characterised in that：The auxiliary clamp dress
The auxiliary positioning plate being arranged in a mutually vertical manner with master positioning plate including one is set, level screws setting in the threaded hole of auxiliary positioning plate
One auxiliary threaded rod pushes against disk in the inner end of auxiliary threaded rod connected one；The outer end of the auxiliary threaded rod is pierced by auxiliary positioning plate simultaneously
It is connected with an auxiliary handle.
5. a kind of land survey supporting and regulating device according to claim 4, it is characterised in that：In master positioning plate
End face is equipped with a cushion.
6. a kind of land survey supporting and regulating device according to claim 5, it is characterised in that：It is pushing against in disk
Be connected several elastic bumps on end face.
7. a kind of land survey supporting and regulating device according to claim 6, it is characterised in that：In the outer of annular hand grip
Side wall is equipped with an Anti-slip cover.
8. a kind of land survey supporting and regulating device according to claim 7, it is characterised in that：It is set on auxiliary handle
There is a friction sleeve.
9. a kind of land survey supporting and regulating device according to claim 8, it is characterised in that：In each master positioning plate
A master shield is respectively fixedly connected in top.
10. a kind of land survey supporting and regulating device according to claim 9, it is characterised in that：In each auxiliary positioning
A sub-barrier is respectively fixedly connected at the top of plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820228245.3U CN207816274U (en) | 2018-02-09 | 2018-02-09 | A kind of land survey supporting and regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820228245.3U CN207816274U (en) | 2018-02-09 | 2018-02-09 | A kind of land survey supporting and regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816274U true CN207816274U (en) | 2018-09-04 |
Family
ID=63320925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820228245.3U Expired - Fee Related CN207816274U (en) | 2018-02-09 | 2018-02-09 | A kind of land survey supporting and regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207816274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058671A (en) * | 2018-09-18 | 2018-12-21 | 赵自文 | A kind of new-type hand-rail type 3D printer firm banking |
| CN112411457A (en) * | 2020-11-16 | 2021-02-26 | 无锡柏鹏科技有限公司 | Multifunctional spray pipe of snow blower |
-
2018
- 2018-02-09 CN CN201820228245.3U patent/CN207816274U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058671A (en) * | 2018-09-18 | 2018-12-21 | 赵自文 | A kind of new-type hand-rail type 3D printer firm banking |
| CN112411457A (en) * | 2020-11-16 | 2021-02-26 | 无锡柏鹏科技有限公司 | Multifunctional spray pipe of snow blower |
| CN112411457B (en) * | 2020-11-16 | 2022-07-08 | 无锡柏鹏科技有限公司 | Multifunctional spray pipe of snow blower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205333077U (en) | Geographical survey and drawing scale of easy operation | |
| CN207816274U (en) | A kind of land survey supporting and regulating device | |
| CN208025082U (en) | A kind of mapping auxiliary device | |
| CN213748420U (en) | Banded topography survey and drawing auxiliary device | |
| CN210570665U (en) | Total powerstation support frame and total powerstation thereof | |
| CN208704692U (en) | A kind of wafer sampling observation device | |
| CN207779357U (en) | Multi-functional soil mapping equipment | |
| CN107339583A (en) | It is a kind of from centering type laser tripod | |
| CN113670263A (en) | Land levelness measuring device for land planning and measuring method thereof | |
| CN112985366B (en) | Multi-angle mapping device for building engineering | |
| CN212510141U (en) | Geological compass supporting mechanism for geological survey | |
| CN104064105B (en) | Large vertical type unit vertical coaxiality measuring and adjusting experimental device and experimental method | |
| CN210833533U (en) | Multi-angle photogrammetric survey device with light filling function | |
| CN219495211U (en) | Inclination measuring device for geological survey | |
| CN209027403U (en) | A kind of novel test device for high technology ceramics | |
| CN206113922U (en) | Automatic perpendicular laser height finding levelling rod | |
| CN207999242U (en) | A kind of shaft orientation survey device | |
| CN207501916U (en) | A kind of laser-measured height device | |
| CN207064986U (en) | A kind of surveying instrument supporting frame for hillside fields | |
| CN109458989A (en) | A kind of device and its detection method for building verticality quality testing | |
| CN216558969U (en) | Efficiency of measurement is improved centering rod for engineering survey | |
| CN105066944A (en) | Device for measuring ground flatness | |
| CN211600029U (en) | Handheld distancer support frame is used in national soil space planning | |
| CN211371817U (en) | Engineering survey and drawing dipperstick convenient to use | |
| CN210860513U (en) | Geographic surveying and mapping frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20190209 |