CN106969757A - A kind of automatic leveling tripod - Google Patents
A kind of automatic leveling tripod Download PDFInfo
- Publication number
- CN106969757A CN106969757A CN201710226663.9A CN201710226663A CN106969757A CN 106969757 A CN106969757 A CN 106969757A CN 201710226663 A CN201710226663 A CN 201710226663A CN 106969757 A CN106969757 A CN 106969757A
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- China
- Prior art keywords
- automatic leveling
- instrument
- pin
- levelling gear
- gland
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Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
Abstract
The present invention relates to engineering surveying instrument field, and in particular to a kind of automatic leveling tripod, including：Triangular leg, the rack platform for being arranged on three pin supporting leg upper ends, and levelling gear, locking mechanism and instrument erecting bed；The adjusting hole of a up/down perforation is provided with the middle part of the rack platform, levelling gear is hung on rack platform by adjusting hole vertical, make the installation site automatic leveling of instrument erecting bed, then the sealed fixation of levelling gear is maintained by the horizontality of instrument from structure by locking mechanism.The automatic leveling tripod apparatus provided using such scheme, the present invention, can greatly simplify the leveling process of measuring instrument, reduce the operating time adjusted repeatedly and energy consumption, simple to operate, quick, improve leveling precision and efficiency.
Description
Technical field
The present invention relates to engineering surveying instrument field, and in particular to a kind of automatic leveling tripod.
Background technology
Modern society is increasingly strict to the quality requirement of engineering construction, and the quality of engineering and the precision for designing and constructing are direct
Correlation, and accurately design and on the basis of construction must be set up accurate engineering survey.The instrument master commonly used in engineering survey
Have spirit level, theodolite, total powerstation etc., function is each variant, but no matter which kind of instrument, it has been required for one when in use
Stable support meanss --- tripod.Traditional tripod passes use due to its simple in construction, supporting ＆ stablizing good characteristics
So far, but only drawback is that, typical tripod is before use, Levelling operation trouble, time-consuming, it is necessary to by repeatedly to tripod
Three support feets and instrument on micromatic setting carry out leveling, can just make bubble on instrument placed in the middle, reach measurement
The use requirement that instrument is accurately placed, extremely consumes personal energy during adjustment, and the precision of its leveling is more still by operating
The experience of person is determined.The whole leveling process degree of accuracy is difficult to control, and troublesome poeration is time-consuming longer, has a strong impact on engineering survey
Precision and efficiency.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of automatic leveling tripod, the tune of measuring instrument can greatly be simplified
Flat process, reduces the operating time adjusted repeatedly and energy consumption, simple to operate, quick, improves leveling precision and efficiency.
A kind of automatic leveling tripod, including contacted and three Height Adjustable pin supporting legs with ground, and it is arranged on three
The rack platform of pin supporting leg upper end, it is characterised in that also include:Levelling gear, locking mechanism and instrument erecting bed；The leveling
Mechanism is an axisymmetric body using plumb line as symmetrical centre, including:Vertical set support stick, be horizontally set on support stick top
The support platform of the truncated cone-shaped in portion, be arranged on support stick bottom spherical irony weight body, and be positioned close to the branch
Support the spherical rotary shaft body on the support stick of platform；The adjusting hole of a up/down perforation is provided with the middle part of the rack platform,
The bottom of the adjusting hole is arranged to the concave spherical surface matched with the latter half of the rotary shaft body；The levelling gear is by turning
Axis body and the cooperation of the adjusting hole are rotatably hung on rack platform, levelling gear is remained vertical；The lock
Position mechanism is detachably arranged on the three pin supporting leg, including：Electromagnetic adsorption plate and three are evenly distributed on electromagnetic adsorption
Fixation pin on edges of boards edge；Three fixed pin correspondences are snapped fitted on three pin supporting legs, and electromagnetic adsorption plate is transversely fixed into institute
State on three pin supporting legs below levelling gear, the electromagnetic adsorption plate adsorbs the weight body with the fixed leveling machine after being powered
Structure；The upper surface of the instrument erecting bed, which is provided with the fixed mechanism of retainer instrument, the lower surface of instrument erecting bed, sets card
Pin；The upper surface of the support platform sets the bayonet socket matched with the card base, by the cooperation of the bayonet socket and card base, by instrument
Device erecting bed is horizontally mounted to the top of support platform.
After being stood by the way that three pin supporting legs are stable, shape for axisymmetric body levelling gear in the presence of centrifugal force, with
Centered on spherical rotary shaft body, vertical state is automatically adjusted to, makes the upper surface holding level of support platform；Now, lock-bit machine
The electromagnetic adsorption plate of structure, which is powered, produces magnetic force, adsorbs weight body so that whole levelling gear to be locked in current vertical state, from
The horizontality of support platform is maintained in structure；The instrument erecting bed for being provided with instrument is finally snapped fitted into the upper of support platform
Portion, directly makes instrument be in the higher horizontality of precision, greatly simplifies the leveling process of measuring instrument, and reduction is adjusted repeatedly
Operating time and energy consumption, leveling work that is simple, quick, being efficiently completed instrument.
Further, the adjustable length of above-mentioned support stick, including：Upper tube body and it is actively plugged in flexible in upper tube body
Bar；The top of the upper tube body connects the rotary shaft body, and the bottom of upper tube body sets the telescopic hole coaxial with upper tube body, upper tube body
Lower end removably set a middle part to offer end cap with the telescopic hole coaxial through-hole；The top of the expansion link be with
The coaxial slide mass of the telescopic hole, the lower end of expansion link is less than the slide mass and the body of rod coaxial with slide mass for diameter；
The slide mass set is inserted in the telescopic hole, and the body of rod is projected into the bottom of upper tube body through the through hole on the end cap, and
A spring is arranged on the body of rod between the slide mass and end cap；The lower end of the body of rod is removable by screw thread and the weight body
The connection unloaded.Make the adjustable length of support stick by said structure, adapt to three pin supporting legs under different opening and height condition, weight
Hammer body can smoothly be contacted with electromagnetic adsorption plate and firmly adsorbed by it, reach the effect of leveling lock-bit.Meanwhile, weight
Body is connected through a screw thread with support stick, at any time can be split weight body and support stick, convenient dismounting or assembling leveling when necessary
Mechanism, using more convenient.
Further, above-mentioned slide mass is in strip, and is the dumb-bell shape that interlude diameter is less than two ends, it is ensured that expansion link
In telescopic hole while coaxial guiding, reduce friction area to reduce frictional force.
Further, above-mentioned electromagnetic adsorption plate includes：It is arranged on electromagnetism pole plate and the setting of electromagnetic adsorption plate upper surface
Battery in electromagnetic adsorption plate bottom, the electromagnetism pole plate is electrically connected with battery, and sets one between electromagnetism pole plate and battery
Individual switch, controls the energization of electromagnetism pole plate to produce magnetic force or power-off demagnetization by the switch.
Further, above-mentioned switch switchs for remote control, and by a hand-held remote control control, it is powered or powered off,
Avoid external force intervention from producing influence to the leveling state of three pin supporting legs, further ensure the precision of leveling.
Further, above-mentioned fixed pin is fixed by being arranged on the anchor ear of its outer end with three pin supporting legs, and the anchor ear includes：
Two holding bodies of symmetrical setting, two described one end for holding body tightly are hinged with fixed pin, the pairing of two holding bodies
Portion sets a hasp；The movable end and fixing end of the hasp are separately fixed at one and held tightly on body, pass through the movable end
And the combination of fixing end makes the anchor ear closure hold the three pin supporting leg tightly, or anchor ear is opened release described three with separating
Pin supporting leg.
Further, above-mentioned holding body includes the hold bar that multistage is hinged；The design of multi-segment structure, when closing anchor ear
Shape can more be matched with the profile of three pin supporting legs, it is ensured that obvolvent it is solid and reliable.
Further, the top of the adjusting hole is provided with counter sink, and one gland of setting, institute in the counter sink
The top for stating gland is provided with the convex edge horizontally outward extended, and is sitting in by convex edge extension on the rack platform, described
The bottom of gland is inserted into counter sink, and gland lower surface be arranged to the top half of the rotary shaft body match it is recessed
Sphere, by the post-receiving chamber matched with the rotary shaft body that cooperatively forms of the gland and adjusting hole, limits leveling machine
Structure is moved up and down.
Further, rotatable briquetting is provided with the rack platform on the outside of above-mentioned gland, the briquetting is rotated and compresses
Fix or unclamp the gland, it is ensured that to the reliability of levelling gear axial limiting, and be easy to dismounting.
Further, above-mentioned bayonet socket is the square shrinkage pool for being arranged on the support platform upper surface middle part, the card base
It is arranged on the medium position of the instrument erecting bed lower surface, and the square protrusions to match with the square shrinkage pool；
By the cooperation of square shrinkage pool and boss, the installation of instrument is simpler, quick.
In summary, the automatic leveling tripod that the present invention is provided, can greatly simplify the leveling process of measuring instrument,
The operating time adjusted repeatedly and energy consumption are reduced, it is simple to operate, quick, improve leveling precision and efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is structure half-section diagram of the invention；
Fig. 3 is the structural profile schematic diagram of levelling gear of the present invention；
Fig. 4 is the structural representation of locking mechanism of the present invention；
Fig. 5 is the structural representation of anchor ear of the present invention.
Reference：The pin supporting legs of 1- tri-；2- rack platforms；21- adjusting holes；22- glands；23- post-receiving chambers；24- briquettings；3-
Levelling gear；31- support sticks；311- upper tube bodies；3111- telescopic holes；312- expansion links；3121- slide masses；The 3122- bodies of rod；
313- end caps；314- springs；32- support platforms；321- bayonet sockets；33- weight bodies；34- rotary shaft bodies；4- locking mechanisms；41- electromagnetism
Adsorption plate；411- electromagnetism pole plates；412- is switched；413- remote controls；42- fixes pin；43- anchor ears；431- holds body tightly；4311- is embraced
Tight bar；432- hasps；4321- movable ends；4322- fixing ends；5- instrument erecting beds；51- card bases
Embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figures 1 to 5, a kind of automatic leveling tripod provided in an embodiment of the present invention, including：Three pin supporting legs 1, branch
Body panel 2, levelling gear 3, locking mechanism 4 and instrument erecting bed 5.Three pin supporting legs 1 are uniformly distributed and height and angle including three
The supporting leg that can be adjusted is spent, and contacts the effect for realizing stable support with ground by supporting leg.Rack platform 2 is arranged on three pin
The upper end of supporting leg 1, its middle part is provided with the adjusting hole 21 of a up/down perforation, to install levelling gear 3.
Referring to Fig. 3, levelling gear 3 is an axisymmetric body using plumb line as symmetrical centre, including:The branch that vertical is set
Support rod 31, the support platform 32 for the truncated cone-shaped being horizontally set at the top of support stick 31, the spherical iron for being arranged on the bottom of support stick 31
The weight body 33 of matter, and the spherical rotary shaft body 34 being positioned close on the support stick 31 of the position of support platform 32.To adapt to
The different opening and height condition of three pin supporting legs 1, the adjustable length of support stick 31.Support stick 31 is main by a upper tube body 311
Constituted with an expansion link being actively plugged in upper tube body 311 312；The top connection rotating shaft body 34 of the upper tube body 311, upper pipe
The bottom of body 311 sets the telescopic hole 3111 coaxial with upper tube body 311, and the middle part of one of being spirally connected in the lower end of upper tube body 311
Offer the end cap 313 of the through hole coaxial with the telescopic hole 3111.The top of expansion link 312 is coaxial with the telescopic hole 3111
Slide mass 3121, and the slide mass 3121 is in strip, and its interlude diameter is less than two ends formation dumb-bell shape, it is ensured that expansion link
312 while coaxial guiding, reduce friction area to reduce frictional force in telescopic hole 3111；The lower end of expansion link 312 is straight
Footpath is less than slide mass 3121 and the body of rod 3122 coaxial with slide mass 3121.The set of the precision-fit of slide mass 3121 is inserted in telescopic hole
In 3111, the body of rod 3122 is projected into the bottom of upper tube body 311 through the through hole on end cap 313, and in slide mass 3121 and end cap
A spring 314 is arranged on the body of rod 3122 between 313, so that support stick 31 possesses retractility, it is ensured that in the difference of three pin supporting legs 1
Under aperture and height condition, weight body can smoothly be contacted with electromagnetic adsorption plate and firmly adsorbed by it, increase lock-bit
Reliability.The lower end of the body of rod 3122 is removably connected by screw thread with weight body 33, can be at any time by weight body and support stick
Split, it is convenient to dismantle or assemble when necessary levelling gear, using more convenient.
Referring to Fig. 2, the expansion of three pin supporting legs 1 place it is stable after, by the cooperation of adjusting hole 21 and rotary shaft body 34 by leveling machine
Structure 3 is hung on rack platform 2, levelling gear 3 is remained vertical.The bottom of adjusting hole 21 is arranged to and rotary shaft body 34
The concave spherical surface that the latter half matches, the top of adjusting hole 21 is provided with counter sink, and a gland 22, the pressure are set in counter sink
The top of lid 22 is provided with the convex edge horizontally outward extended, and is sitting in by convex edge extension on rack platform 2；The bottom of gland 22
It is inserted into the counter sink, and the lower surface of gland 22 is arranged to the concave spherical surface matched with the top half of the rotary shaft body 34；
One post-receiving chamber matched with rotary shaft body 34 23 is cooperatively formed by gland 22 and adjusting hole 21, levelling gear 3 passes through this
The activity cooperation of rotary shaft body 34 and post-receiving chamber 23, can universal rotational snap fitted on rack platform 2, the outer surface of rotary shaft body 34 with
And the inner surface of post-receiving chamber 23 forms the minimum shiny surface of surface roughness by finishing, and add in the mating surface of the two
Lubricating oil is noted to form lubricating oil film, makes frictional force very little at the cooperation of the two, rotary shaft body 34 can flexibly turn in post-receiving chamber 23
It is dynamic, levelling gear 3 is remained vertical under gravity.Meanwhile, to ensure to the reliable of the axial limiting of levelling gear 3
Property, multiple rotatable briquettings 24 are provided with the rack platform 2 in the outside of gland 22, are rotated the briquetting 24 and are fixed or pine
Gland 22 is opened, is easy to dismounting.
As shown in Figure 4 and Figure 5, locking mechanism 4 includes：Electromagnetic adsorption plate 41 and three are evenly distributed on electromagnetic adsorption plate
Fixation pin 42 on 41 edges, three fixed pin 42 respectively pass through the three of a pin supporting leg 1 of anchor ear 43 and three for being arranged on its outer end
Individual supporting leg is fixed, and electromagnetic adsorption plate 41 is fixed in the lower section of levelling gear 3 in the state of general horizontal on three pin supporting legs 1,
Play a part of stablizing three pin supporting legs 1 simultaneously.Referring to Fig. 5, the main two holding bodies 431 by symmetrical setting of anchor ear 43
Composition, holds body 431 tightly and is hinged and forms by multistage hold bar 4311, and shape when enabling the anchor ear 43 close is outer with three pin supporting legs 1
Shape is more matched, it is ensured that obvolvent it is solid and reliable；The one end and fixed pin 42 for holding body 431 tightly are hinged, the pairing of two holding bodies 431
Portion sets a hasp 432, and the movable end 4321 and fixing end 4322 of the hasp 432 are separately fixed at one and held tightly on body 431：
Combination by movable end 4321 and fixing end 4322 makes the closure of anchor ear 43 hold three pin supporting legs 1 tightly to fix lock-bit machine with separating
Structure 4, or anchor ear 43 is opened three pin supporting legs 1 of release, locking mechanism 4 is unloaded with easy disassembly.
Referring to Fig. 4, electromagnetic adsorption plate 41 includes：It is arranged on the electromagnetism pole plate 411 of the upper surface of electromagnetic adsorption plate 41 and sets
The battery in the bottom of electromagnetic adsorption plate 41 is put, electromagnetism pole plate 411 is electrically connected with battery, and between electromagnetism pole plate 411 and battery,
Set the energization of a control electromagnetism pole plate 411 to produce magnetic force or power off the switch 412 of demagnetization；To avoid external force intervention to three
The leveling state of pin supporting leg 1 produces influence, to further ensure the precision of leveling, and the switch 412 switchs for remote control, leads to
Crossing a hand-held remote control of remote control 413, it is powered or powered off.
After being stood by the way that three pin supporting legs 1 are stable, shape for axisymmetric body levelling gear 3 in the presence of centrifugal force,
Centered on spherical rotary shaft body 34, vertical state is automatically adjusted to, makes the upper surface holding level of support platform 32；Now,
Control the electromagnetic adsorption plate 41 of locking mechanism 4 to be powered and produce magnetic force, absorption weight body 33 so that its automatically adjust after length with electricity
Magnetic attached plate 41 is contacted, and whole levelling gear 3 is locked in current vertical state, and the water of support platform 32 is maintained from structure
Level state, obtains the higher instrument of precision and places basis.
Afterwards, by instrument by the fixed mechanism of the retainer instrument set on the upper surface of instrument erecting bed 5, by instrument stabilizer
It is installed on instrument erecting bed 5, is then aligned with the bayonet socket 321 of the square shrinkage pool shape of the upper surface middle part of support platform 32 setting,
By the card base 51 of the square protrusions shape matched with the bayonet socket 321 set on the lower surface of instrument erecting bed 5, easily insert
It is attached in support platform 32；Because instrument erecting bed 5 is the parallel column in upper and lower surface, kept in the upper surface of support platform 32
In the case of level, instrument keeps level naturally, without carrying out cumbersome Levelling operation again.
In summary, using such scheme, the automatic leveling tripod that the present invention is provided can greatly simplify measuring instrument
The leveling process of device, reduces the operating time adjusted repeatedly and energy consumption, simple to operate, quick, improves leveling precision and effect
Rate.
It should be noted that preferred embodiment above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to the foregoing embodiments for pipe, it will be understood by those within the art that：It is still
Technical scheme described in previous embodiment can be modified, or which part or all technical characteristic are carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from technical scheme of the embodiment of the present invention
Scope, it all should cover among the claim of the present invention and the scope of specification.
Claims (10)
1. a kind of automatic leveling tripod, including contacted and three Height Adjustable pin supporting legs with ground, and it is arranged on three pin
The rack platform of supporting leg upper end, it is characterised in that also include:Levelling gear, locking mechanism and instrument erecting bed；
The levelling gear is an axisymmetric body using plumb line as symmetrical centre, including:The support stick of vertical setting, level are set
Put the support platform of the truncated cone-shaped at the top of support stick, be arranged on support stick bottom spherical irony weight body, and set
In the spherical rotary shaft body on the support stick of the support platform；
Be provided with the adjusting hole of a up/down perforation in the middle part of the rack platform, the bottom of the adjusting hole be arranged to it is described
The concave spherical surface that the latter half of rotary shaft body matches；The levelling gear is rotatable by rotary shaft body and the cooperation of the adjusting hole
Be hung on rack platform, levelling gear is remained vertical；
The locking mechanism is detachably arranged on the three pin supporting leg, including：Electromagnetic adsorption plate and three are uniformly distributed
Fixation pin on electromagnetic adsorption edges of boards edge；Three fixed pin correspondences are snapped fitted on three pin supporting legs, and electromagnetic adsorption plate is horizontal
On the three pin supporting legs to below fixed to the levelling gear, the electromagnetic adsorption plate adsorbs the weight body with fixation after being powered
The levelling gear；
The upper surface of the instrument erecting bed, which is provided with the fixed mechanism of retainer instrument, the lower surface of instrument erecting bed, sets card
Pin；The upper surface of the support platform sets the bayonet socket matched with the card base, by the cooperation of the bayonet socket and card base, by instrument
Device erecting bed is horizontally mounted to the top of support platform.
2. automatic leveling tripod according to claim 1, it is characterised in that
The adjustable length of the support stick, including：Upper tube body and the expansion link being actively plugged in upper tube body；
The top of the upper tube body connects the rotary shaft body, and the bottom of upper tube body sets the telescopic hole coaxial with upper tube body, upper pipe
The lower end of body removably sets a middle part to offer the end cap with the telescopic hole coaxial through-hole；The top of the expansion link is
The coaxial slide mass with the telescopic hole, the lower end of expansion link is less than the slide mass and the bar coaxial with slide mass for diameter
Body；The slide mass set is inserted in the telescopic hole, and the body of rod is projected into the bottom of upper tube body through the through hole on the end cap, and
A spring is arranged on the body of rod between the slide mass and end cap；The lower end of the body of rod can by screw thread and the weight body
The connection of dismounting.
3. automatic leveling tripod according to claim 2, it is characterised in that
The slide mass is in strip, and is the dumb-bell shape that interlude diameter is less than two ends.
4. automatic leveling tripod according to claim 1, it is characterised in that
The electromagnetic adsorption plate includes：It is arranged on the electromagnetism pole plate of electromagnetic adsorption plate upper surface and is arranged under electromagnetic adsorption plate
The battery in portion, the electromagnetism pole plate is electrically connected with battery, and sets a switch between electromagnetism pole plate and battery, by described
The energization of switch control electromagnetism pole plate produces magnetic force or power-off demagnetization.
5. automatic leveling tripod according to claim 4, it is characterised in that
The switch is remote control switch, and by a hand-held remote control control, it is powered or powered off.
6. automatic leveling tripod according to claim 1, it is characterised in that
The fixed pin is fixed by being arranged on the anchor ear of its outer end with three pin supporting legs, and the anchor ear includes：It is symmetrical to set
The two holding bodies put, two described one end for holding body tightly are hinged with fixed pin, and the pairing portion of two holding bodies sets one and taken
Button；The movable end and fixing end of the hasp are separately fixed at one and held tightly on body, pass through the movable end and the knot of fixing end
Close and separate, the anchor ear closure is held the three pin supporting leg tightly, or anchor ear is opened the release three pin supporting leg.
7. automatic leveling tripod according to claim 6, it is characterised in that
The body of holding tightly includes the hold bar that multistage is hinged.
8. automatic leveling tripod according to claim 1, it is characterised in that
The top of the adjusting hole is provided with counter sink, and one gland of setting, the top of the gland in the counter sink
The convex edge horizontally outward extended is provided with, and is sitting in by convex edge extension on the rack platform, the bottom of the gland is inserted
In counter sink, and the lower surface of gland is arranged to the concave spherical surface matched with the top half of the rotary shaft body, passes through institute
The post-receiving chamber matched with the rotary shaft body that cooperatively forms of gland and adjusting hole is stated, limitation levelling gear, which is done, to be moved down
It is dynamic.
9. automatic leveling tripod according to claim 8, it is characterised in that
Rotatable briquetting is provided with rack platform on the outside of the gland, the briquetting is rotated and is fixed or unclamps institute
State gland.
10. automatic leveling tripod according to claim 1, it is characterised in that
The bayonet socket is the square shrinkage pool for being arranged on the support platform upper surface middle part, and the card base is arranged on the instrument
The medium position of erecting bed lower surface, and the square protrusions to match with the square shrinkage pool.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710226663.9A CN106969757B (en) | 2017-04-09 | 2017-04-09 | A kind of automatic leveling tripod |
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| CN201710226663.9A CN106969757B (en) | 2017-04-09 | 2017-04-09 | A kind of automatic leveling tripod |
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| CN106969757B CN106969757B (en) | 2019-07-05 |
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| CN108254007A (en) * | 2018-01-15 | 2018-07-06 | 张帝 | One kind can automatic leveling machine components detecting system |
| CN108489472A (en) * | 2018-05-31 | 2018-09-04 | 贵州大学 | A kind of civil engineering commonly uses the surveying instrument mounting base of high stability |
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| CN114857434A (en) * | 2022-05-05 | 2022-08-05 | 商洛学院 | Urban and rural planning engineering measuring equipment convenient to leveling |
| CN117685470A (en) * | 2024-01-31 | 2024-03-12 | 东营市自然资源和规划局东营分局土地矿产发展服务中心 | Combined automatic positioning auxiliary mapping device |
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