CN107339936A - A kind of field laser alignment mark device - Google Patents
A kind of field laser alignment mark device Download PDFInfo
- Publication number
- CN107339936A CN107339936A CN201710539165.XA CN201710539165A CN107339936A CN 107339936 A CN107339936 A CN 107339936A CN 201710539165 A CN201710539165 A CN 201710539165A CN 107339936 A CN107339936 A CN 107339936A
- Authority
- CN
- China
- Prior art keywords
- support
- alignment mark
- mark device
- expansion plate
- laser
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to a kind of field laser alignment mark device, belongs to field of measuring technique.Including fix bar and alignment mark device, alignment mark device has housing and laser generator, laser generator is provided with level meter, fixed plate is provided with fix bar, suspension holdfast is provided with the fixed plate, suspension holdfast includes support, sucker and connecting rod, support cross section is arc, carriage center is provided with shoulder hole, and connecting rod is arranged in shoulder hole, and one end of connecting rod sets gland, the other end stretches out shoulder hole and connecting sucker, junction button is provided with support, the top of housing sets fastener and fixed seat, for supporing shell.Even if the field laser alignment mark device fix bar can not be inserted vertically into during earth's surface is inserted, also can be by adjusting the bearing height of fixed seat so that the laser generator keep level, effectively solves the problems, such as the exactitude position that can not quickly realize alignment mark device in the prior art.
Description
Technical field
The present invention relates to field of measuring technique, and in particular to a kind of field laser alignment mark device.
Background technology
In the wild, it is necessary to be carried out with two Laser emissions and reception device to mark, due to open country in the measurement process such as mapping
Outer ground environment is uneven, and local environment is also varied, does not ensure that laser equipment causes in horizontality all the time
The laser of laser generator horizontal can project, and is received by the receiver simultaneously, realizes the accurate determination of position, based on this, be badly in need of
A kind of field laser alignment mark device that can stablize fixed laser equipment and its horizontality can be adjusted.
The content of the invention
It is an object of the invention to provide a kind of field laser alignment mark device, to solve above-mentioned technical problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of field laser alignment mark device, including fix bar and alignment mark device, fixed plate are provided with the fix bar, institute
State and suspension holdfast is provided with fixed plate, the suspension holdfast includes support, sucker and connecting rod, and the support cross section is arc
Shape, the carriage center are provided with shoulder hole, and the connecting rod is arranged in the shoulder hole, and support is stretched out in one end of the connecting rod
And gland is provided with, the other end stretches out the shoulder hole and the connection sucker, and spring is provided with the step of the shoulder hole,
The both ends of the spring are respectively held against the shoulder hole and the gland, and the sucker is located at the inner side of the support.
Junction button is provided with the support, the alignment mark device has housing and laser generator, the laser hair
Raw device is provided with level meter, and the top of the housing is provided with fastener, and the fastener is fastened on the junction button, the support
On be connected with fixed seat, the bottom that the fixed seat is used to support the housing is so that the laser generator keep level.
Preferably, the both sides of the support are respectively connected with expansion plate, and the alignment mark device also includes laser pickoff, described
Laser pickoff is arranged at the expansion plate and is located at sustained height with the generating laser.
Preferably, the expansion plate includes the first expansion plate and the second expansion plate, and first expansion plate is connected to described
On support, neck is provided with first expansion plate, second expansion plate is slidably arranged in the neck；
Block is provided with the middle part of the neck, open corresponding with the block is provided with the middle part of second expansion plate
Mouthful, the both sides of the opening are provided with dividing plate.
Preferably, the one end of first expansion plate away from the support and second expansion plate are close to the support
One end is provided with the lock of mutual cooperation.
Preferably, the lock includes positioning hole and resilient latching member, and the positioning hole is arranged on the edge of the neck
On, the resilient latching member is arranged on second expansion plate, and the resilient latching member includes locking bar and spring, the locking bar
The spring is connected, fixing hole is provided with second expansion plate, the fixing hole is oppositely arranged with the positioning hole, described
Spring one end is fastened in the fixing hole, and the other end connects the locking bar, and the locking bar can slide along the fixing hole
And stretch into the positioning hole.
Handle is connected with the locking bar, the handle is arranged in chute and stretches out chute.
Preferably, the housing props up the gland close to the side of the support.
Preferably, the fixed seat includes thread barrel and support base, and the thread barrel connects on the bracket, the spiral shell
The inwall of line cylinder is provided with internal thread, and the support base includes support bar and cushion, the outer wall of the support bar be provided with
The external screw thread of the screw-internal thread fit, the threaded one end of the support bar are connected in the thread barrel, and the other end is fixedly connected
The cushion.
Preferably, the support base is two, and two support bases are separately positioned on the both ends of the thread barrel.
Beneficial effects of the present invention：
The present invention is scientific and reasonable for structure, even if the field laser alignment mark device fix bar can not during earth's surface is inserted
It is inserted vertically into, also can be by adjusting the bearing height of fixed seat so that the laser generator keep level, is effectively solved
The problem of exactitude position of alignment mark device can not quickly be realized in the prior art.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structural representation of suspension holdfast provided in an embodiment of the present invention；
Fig. 2 is along the profile of line A-A in Fig. 1；
Fig. 3 is Fig. 1 top view；
Fig. 4 is the structural representation of fixed seat in laser alignment mark device in field provided by the invention；
Fig. 5 is along the profile of line B-B in Fig. 4；
Fig. 6 is the structural representation latched in laser alignment mark device in field provided by the invention；
Fig. 7 is along the profile of line C-C in Fig. 6；
Fig. 8 is the structural representation of junction button in laser alignment mark device in field provided by the invention；
Fig. 9 is the structural representation of fastener in laser alignment mark device in field provided by the invention.
Scheming acceptance of the bid note is respectively：
Housing 100；Support 101；Gland 102；Connecting rod 103；Fixed disk 104；Sucker 105；Junction button 120；Suspension groove
121；Fastener 122；First expansion plate 130；Second expansion plate 131；Block 132；Dividing plate 133；Locking bar 134；Handle 135；It is fixed
Hole 136；Positioning hole 137；Spring 138；Connecting rod 141；Cushion 142；Thread barrel 143；Support bar 144.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in Figures 1 to 9, present embodiments provide a kind of field laser alignment mark device, including fix bar and mark is filled
Put, fix bar is used to insert earth's surface, and the bottom of fix bar is arranged to pointed, convenient insertion earth's surface.It is provided with the fix bar
Fixed plate, fixed plate are arranged at the top of fixing end, suspension holdfast are provided with the fixed plate.
Alignment mark device has housing 100 and laser generator, and laser generator is arranged at housing and for outwards launching
Laser, laser generator are provided with level meter, and level meter is used for the horizontality for determining laser generator, and housing 100 is a square
Shape grid structure, the top of housing 100 are provided with fastener 122, and the mechanism of fastener 122 is as shown in figure 8, the transverse cutting of fastener 122
Face is in I-shaped, and wherein I-shaped a bottom is fixed on housing 100.
As shown in Fig. 2 suspension holdfast 101 includes support 101, sucker 105 and connecting rod 103, the cross section of support 101 is teabowl with a cover
The arc of shape, the shoulder hole being provided centrally with through support 101 of support 101, the shoulder hole is a shoulder hole.Shoulder hole edge branch
The center of frame 101 is opened up, and larger arcwall face of the opening away from support 101 of shoulder hole, shoulder hole is integrally formed with support 101
It is manufactured.
Connecting rod 103 is shaft-like, and connecting rod 103 is vertically provided in shoulder hole and connecting rod 103 can slide in the shoulder hole,
One end of connecting rod 103 stretches out support 101 and is provided with gland 102, and gland 102 is circular lid, and gland 102 has cover plate and perisporium,
Its cover plate lid is located at the end of connecting rod 103, and its perisporium is located in shoulder hole, and cover plate is to stretch out shoulder hole in non-pressed state
, the lower section of gland 102 is provided with spring, and spring props up shoulder hole.
The other end of connecting rod 103 stretches out shoulder hole and is connected with fixed disk 104, and fixed disk 104 is discoid, fixed disk 104
Diameter it is big compared with the diameter of connecting rod 103, sucker 105 is fixed on fixed disk 104.Fixed disk 104 can also be not provided with, will directly be inhaled
Disk 105 is arranged on the end of connecting rod 103.
Sucker 105 is arranged on fixed disk 104, when pressing gland 102, fixed disk 104 is under the promotion of connecting rod 103
Act on sucker 105, sucker 105 is more directly acted on by connecting rod 103, the stress surface of sucker 105 is bigger, accordingly, inhales
Air between disk 105 and metope can be extruded away faster.By pressing gland 102, inwall of the gland 102 along shoulder hole is slided
Dynamic, the drivening rod 103 of gland 102 simultaneously promotes fixed disk 104, and fixed disk 104 discharges the air between sucker 105 and metope, real
Sucker 105 is now adsorbed into function on the wall.
Junction button 120 is provided with support 101, junction button 120 is provided on the surface of support 101, junction button 120
For two, two junction buttons 120 are symmetrically arranged along the both sides of gland 102, as shown in figure 3, junction button 120 is and fastener
122 position is mutually corresponding, and Fig. 9 shows the sectional view of junction button 120, and suspension groove 121 is provided with junction button 120, hangs
The upper end open of hanging groove 121, lower end closed, fastener 122 can snap-fit into suspension groove 121 from top to bottom.
Fixed seat is connected with support 101, fixed seat is connected to the lower end of support 101 and extends downwardly setting, fixed seat
Bottom for supporing shell 100.As shown in Figure 6 and Figure 7, fixed seat includes thread barrel 143 and two support bases, thread barrel
143 are connected on support 101 by connecting rod 141, and the inwall of thread barrel 143 is provided with internal thread, and support base includes support bar
144 and cushion 142, cushion 142 be made of silica gel.The outer wall of support bar 144 is provided with outer with screw-internal thread fit
Screw thread, the threaded one end of support bar 144 are connected in thread barrel 143, and the other end is fixedly connected with cushion 142.
Two support bars 144 are connected with thread barrel 143 and extended towards opposite direction, and two cushions 142 are used respectively
In support metope and housing 100.The degree being threaded into by adjusting support bar 144 in hole, the height of support bar 144 can be adjusted
Degree, realizes the adjustment to the levelling of metope and to the angle of housing 100, and the field laser alignment mark device for being is in vertically to set all the time
Put.
The position of two junction buttons 120 and two fixed seats is attached support, and junction button to housing 100 respectively
The position of cushion 142 is in same vertical plane on 120 positions contacted with housing 100 and fixed seat so that field laser
Alignment mark device keeps stable.
After fastener 122 and junction button 120 mutually fasten, the outer wall of housing 100 props up gland 102, prevents gland
102 movements, prevent air from entering in sucker 105, ensure that the absorption of sucker 105 is stable.
In the test process of reality, in order to ensure the accurate of test result, it shall be guaranteed that oxygen, the essence of nitrogen supply (NS)
Really, and conventionally, as situations such as bending, winding, which occur, in oxygen channel and nitrogen pipeline causes oxygen-supplying amount and applying Namount
Inaccurately, so influence experimental result.
Therefore preferred embodiment is to be respectively provided with expansion plate in the both sides of support 101.
The setting form of pipeline clip slot has a lot, and in the present embodiment, it is flexible that expansion plate includes the first expansion plate 130 and second
Plate 131, the first expansion plate 130 are connected on support 101, and neck is provided with the first expansion plate 130, and the second expansion plate 131 is slided
It is dynamic to be arranged in neck.
Block 132 is provided with the middle part of neck, the middle part of the second expansion plate 131 is provided with opening corresponding with block 132,
The both sides of opening are provided with dividing plate 133.Block and the dividing plate of opening both sides 133 respectively stretch the first expansion plate 130 and second
Plate 131 is separated to form pipeline clip slot.Expansion plate is arranged to drawing and pulling type structure, so when not in use, second can be stretched
Plate 131 is collapsed in the neck of the first expansion plate 130, saves the space of occupancy.When collapsing, in the insertion opening of block 132.
First expansion plate 130 and the second expansion plate 131 integral structure can certainly be set, pipeline can be also realized
The function of clip slot.
The one end of first expansion plate 130 away from support 101 is provided with the second expansion plate 131 close to one end of support 101
The lock of mutual cooperation.
The effect of lock is when in use, when the second expansion plate 131 slides into the end of the first expansion plate 130, by
Two expansion plates 131 are formed with the first expansion plate 130 and are relatively fixed, and are unlikely in use, the second expansion plate 131 is slided
Dynamic situation.
In the present embodiment, lock includes positioning hole 137 and resilient latching member, and positioning hole 137 is arranged on the edge of neck,
Resilient latching member is arranged on the second expansion plate 131, and resilient latching member includes locking bar 134 and spring 138, and locking bar 134 connects bullet
Spring 138, fixing hole 136 is provided with the second expansion plate 131, fixing hole 136 is oppositely arranged with positioning hole 137, the one end of spring 138
It is fastened in fixing hole 136, other end connection locking bar 134, locking bar 134 can slide along fixing hole 136 and stretch into positioning hole
In 137.
Handle 135 is connected with locking bar 134, handle 135 is arranged in chute and stretches out chute.
Buckle structure so works：When the first expansion plate 130 and the second expansion plate 131 are in rounding state, lock
Bar 134 is pressed in fixing hole 136, and now spring 138 is compressed, and when outwards extracting the second expansion plate 131 out, second is flexible
When plate 131 moves to positioning hole 137 with 136 position correspondence of fixing hole, locking bar 134 enters under the elastic force effect of spring 138
Enter in positioning hole 137, realize the fixation of the first expansion plate 130 and the second expansion plate 131.When needing to collapse the second expansion plate 131,
It is artificial to pull handle 135, locking bar 134 is deviate from from positioning hole 137.
Alignment mark device preferably should also have Laser emission and laser pick-off function simultaneously, such alignment mark device
The laser that generating laser is sent is received by the laser pickoff of another alignment mark device, while the laser of another alignment mark device
The laser that transmitter is sent is received by the laser pickoff of this alignment mark device, realizes two-way laser positioning.
Therefore, in the present embodiment, alignment mark device also includes laser pickoff, and laser pickoff is arranged at the expansion plate simultaneously
It is located at sustained height with generating laser.And preferable laser pickoff is arranged on the second expansion plate 131 and set
When, laser pickoff and laser generator keep same level state, i.e., when laser pickoff level, laser generator is
Horizontality.The laser pickoff of so same alignment mark device and the relative position of generating laser can rely on the second expansion plate
131 slip is adjusted, while is also convenient for being aligned with other alignment mark device.
The field laser alignment mark device that the present embodiment provides is applied to various geographical environments, even if earth's surface is uneven or fixed
Bar cannot be guaranteed to be inserted vertically into earth's surface, can also keep generating laser and laser pickoff water by adjusting fixed seat
It is flat, realize with other alignment mark device accurately to mark.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of field laser alignment mark device, it is characterised in that including fix bar and alignment mark device, be provided with the fix bar
Fixed plate, suspension holdfast is provided with the fixed plate, the suspension holdfast includes support, sucker and connecting rod, and the support is horizontal
Section is arc, and the carriage center is provided with shoulder hole, and the connecting rod is arranged in the shoulder hole, one end of the connecting rod
Stretch out support and be provided with gland, the other end stretches out the shoulder hole and the connection sucker, is set on the step of the shoulder hole
Spring is equipped with, the both ends of the spring are respectively held against the shoulder hole and the gland, and the sucker is located at the interior of the support
Side；
Junction button is provided with the support, the alignment mark device has housing and laser generator, the laser generator
Level meter is provided with, the top of the housing is provided with fastener, and the fastener is fastened on the junction button, is connected on the support
The fixed seat of adjustable support height is connected to, the bottom that the fixed seat is used to support the housing is so that the laser generator
Keep level.
A kind of 2. field laser alignment mark device according to claim 1, it is characterised in that：The both sides of the support are all connected with
Have an expansion plate, the alignment mark device also includes laser pickoff, the laser pickoff be arranged at the expansion plate and with it is described
Generating laser is located at sustained height.
A kind of 3. field laser alignment mark device according to claim 2, it is characterised in that：The expansion plate is stretched including first
Contracting plate and the second expansion plate, the first expansion plate connection on the bracket, are provided with neck, institute in first expansion plate
The second expansion plate is stated to be slidably arranged in the neck；Block is provided with the middle part of the neck, in second expansion plate
Portion is provided with opening corresponding with the block, and the both sides of the opening are provided with dividing plate.
A kind of 4. field laser alignment mark device according to claim 3, it is characterised in that：First expansion plate is away from institute
State one end of support and second expansion plate is provided with the lock of mutual cooperation close to one end of the support.
A kind of 5. field laser alignment mark device according to claim 4, it is characterised in that：It is described lock include positioning hole with
Resilient latching member, the positioning hole are arranged on the edge of the neck, and it is flexible that the resilient latching member is arranged on described second
On plate, the resilient latching member includes locking bar and spring, and the locking bar connects the spring, is provided with second expansion plate
Fixing hole, the fixing hole are oppositely arranged with the positioning hole, and the spring one end is fastened in the fixing hole, another
End connects the locking bar, and the locking bar can slide and stretch into the positioning hole along the fixing hole；It is connected with the locking bar
Handle, the handle are arranged in chute and stretch out chute.
A kind of 6. field laser alignment mark device according to claim 1, it is characterised in that：The housing is close to the support
Side prop up the gland.
A kind of 7. field laser alignment mark device according to claim 1, it is characterised in that：The fixed seat includes thread barrel
And support base, on the bracket, the inwall of the thread barrel is provided with internal thread, the support base bag for the thread barrel connection
Support bar and cushion are included, the outer wall of the support bar is provided with the external screw thread with the screw-internal thread fit, the support bar
Threaded one end is connected in the thread barrel, and the other end is fixedly connected with the cushion.
A kind of 8. field laser alignment mark device according to claim 7, it is characterised in that：The support base be two, two
Individual support base is separately positioned on the both ends of the thread barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710539165.XA CN107339936A (en) | 2017-07-04 | 2017-07-04 | A kind of field laser alignment mark device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710539165.XA CN107339936A (en) | 2017-07-04 | 2017-07-04 | A kind of field laser alignment mark device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107339936A true CN107339936A (en) | 2017-11-10 |
Family
ID=60219473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710539165.XA Withdrawn CN107339936A (en) | 2017-07-04 | 2017-07-04 | A kind of field laser alignment mark device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339936A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5404132A (en) * | 1994-03-14 | 1995-04-04 | Canty; Jeffery N. | Deflection monitoring system |
| CN1130754A (en) * | 1994-12-09 | 1996-09-11 | 株式会社拓普康 | Surveying instrument |
| CN104142124A (en) * | 2014-06-18 | 2014-11-12 | 重庆地质矿产研究院 | Non-contact laser surface displacement monitoring device with inclination correction function |
| CN204027558U (en) * | 2014-08-28 | 2014-12-17 | 王丹丹 | A kind of land surveying spirit-leveling instrument |
| CN104617389A (en) * | 2014-12-23 | 2015-05-13 | 中国人民解放军63655部队 | Rapid sighting device and method for waveguide antenna |
| CN105467065A (en) * | 2015-12-30 | 2016-04-06 | 重庆精榜高分子材料有限公司 | Oxygen index tester |
| CN205228443U (en) * | 2015-12-02 | 2016-05-11 | 安徽理工大学 | Auxiliary device is measured to surveyor's level |
-
2017
- 2017-07-04 CN CN201710539165.XA patent/CN107339936A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5404132A (en) * | 1994-03-14 | 1995-04-04 | Canty; Jeffery N. | Deflection monitoring system |
| CN1130754A (en) * | 1994-12-09 | 1996-09-11 | 株式会社拓普康 | Surveying instrument |
| CN104142124A (en) * | 2014-06-18 | 2014-11-12 | 重庆地质矿产研究院 | Non-contact laser surface displacement monitoring device with inclination correction function |
| CN204027558U (en) * | 2014-08-28 | 2014-12-17 | 王丹丹 | A kind of land surveying spirit-leveling instrument |
| CN104617389A (en) * | 2014-12-23 | 2015-05-13 | 中国人民解放军63655部队 | Rapid sighting device and method for waveguide antenna |
| CN205228443U (en) * | 2015-12-02 | 2016-05-11 | 安徽理工大学 | Auxiliary device is measured to surveyor's level |
| CN105467065A (en) * | 2015-12-30 | 2016-04-06 | 重庆精榜高分子材料有限公司 | Oxygen index tester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206310181U (en) | A kind of Geographical Information Sciences surveying instrument supporting frame | |
| CN209524282U (en) | A kind of stability devices for Hydraulic Engineering Survey | |
| CN107339936A (en) | A kind of field laser alignment mark device | |
| CN205981180U (en) | Optical theodolite's support frame | |
| CN105467065B (en) | A kind of oxygen index (OI) tester | |
| CN213871847U (en) | Portable building surveying instrument support | |
| CN108088415B (en) | Holding-free leveling rod | |
| CN109470224A (en) | A kind of engineering survey self-stabilization tripod | |
| CN206930287U (en) | A kind of mapping tripod for being easy to regulation | |
| CN205403794U (en) | A centering rod for engineering survey | |
| CN209673105U (en) | The mounting bracket of level | |
| CN215173820U (en) | Survey and drawing laying-out device based on BIM | |
| CN109030523A (en) | Novel micro- CT scan positioning device | |
| CN214200098U (en) | Measuring device for surveying and mapping engineering | |
| CN213118312U (en) | Centering rod support for surveying and mapping | |
| CN210240978U (en) | Surveying and mapping device for building engineering | |
| CN208311870U (en) | A kind of tripod with spirit level | |
| CN207923046U (en) | A kind of vibration displacement mounting frame for sensor | |
| CN206504729U (en) | A kind of teaching object staff base and the matched levelling rod used | |
| CN212723402U (en) | Measuring instrument for geological land exploration | |
| CN206975231U (en) | The orthogonal levelling gear of sensor levels component | |
| CN217951841U (en) | Support frame for surveying and mapping | |
| CN219975992U (en) | Geological profile measuring device | |
| CN209326653U (en) | A kind of practical integrated water level | |
| CN209216347U (en) | A kind of physics teaching demonstrator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171110 |
|
| WW01 | Invention patent application withdrawn after publication |