CN112683246A - Three-point support laser receiving target at pay-off hole - Google Patents
Three-point support laser receiving target at pay-off hole Download PDFInfo
- Publication number
- CN112683246A CN112683246A CN202011409006.6A CN202011409006A CN112683246A CN 112683246 A CN112683246 A CN 112683246A CN 202011409006 A CN202011409006 A CN 202011409006A CN 112683246 A CN112683246 A CN 112683246A
- Authority
- CN
- China
- Prior art keywords
- laser receiving
- receiving target
- hole
- laser
- plate
- 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.)
- Granted
Links
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a three-point support laser receiving target at a pay-off hole, wherein a cross line and a plurality of concentric circles with different diameters are drawn on the upper surface of a laser receiving plate, the centers of the concentric circles are coincided with the intersection point of the cross line, a cylindrical boss integrated with the laser receiving plate is arranged at the intersection point of the cross line, the circular mandrel of the cylindrical boss is coincided with the intersection point of the cross line, a support plate is connected with the rear end of the laser receiving plate, and three groups of support columns are arranged on the support plate. According to the invention, the metal supporting columns press downwards under the self weight to grasp the concrete surface, the touch resistance of the laser receiving target is large, the laser receiving target is easy to be sensed by human touch, and after the laser receiving target is touched, the conical pits and moving tracks are left on the concrete surface by the conical tips of the metal supporting columns, so that the concrete surface can be clearly distinguished by naked eyes. According to the cone pits and the moving track, the three cone tips of the receiving target and the concrete face cone pits are directly restored correspondingly without re-measurement from the datum points. The laser receiving target center is provided with a convex column, so that a pencil is not required to be propped against the target center, and the laser receiving operation is facilitated.
Description
Technical Field
The invention relates to the technical field of architectural measurement, in particular to a three-point support laser receiving target at a pay-off hole.
Background
When the axis of the high-rise building is vertically guided, a wire releasing hole is reserved on a structural plate, a laser plummet which is centered downwards is adopted to project focused laser upwards, and then a laser receiving target center arranged on the top layer of the structure is superposed with a laser focus, so that the axis guiding and measuring is realized.
The laser receiving target is generally a square red transparent material, the side length is 150-300 mm, the thickness is about 2mm, the weight is light, and a white square grid line and a plurality of concentric circle lines with different diameters are drawn on the laser receiving target. The grid lines intersect with the plurality of concentric circle lines. The length of diagonal line of the wire releasing hole is larger than the length of the laser receiving target. In order to prevent the laser receiving target from falling into the pay-off hole, two supporting strips are required to be placed above the pay-off hole, and then the laser receiving target is placed above the two supporting strips. The laser receiving target is provided with a weight to increase the friction force between the laser receiving target and the supporting bar so as to prevent the laser receiving target from being touched by mistake and running. The support strip material is typically rebar, formwork bars, hacksaw blades, etc. that are readily available on site. Therefore, the laser receiving target cannot be directly used and can be normally used only by other auxiliary materials, and the actual operation is very inconvenient.
Generally, the floor paying-off operation, the outer frame, the steel bar, the woodworking operation and the hydroelectric operation are performed synchronously basically, workers are inevitable to walk through the paying-off hole, and people are required to watch the laser receiving target. In practice, after the laser receiving target is touched, whether the laser receiving target runs or not and the running distance cannot be directly observed. In order to ensure the accurate axis, the laser receiving target can only be re-guided for rechecking under the condition of not determining whether the laser receiving target is touched to run.
The laser receiver target requires some additional material to support and increase friction, and a pencil needs to be carefully held against the laser receiver target bulls-eye to be seen both longitude and latitude. The pencil point is supported on the target center and used as the sighting mark of the theodolite, and the vertical wire of the cross wire of the theodolite aims at the sighting mark.
Disclosure of Invention
The invention aims to make up for the defects of the prior art, provides a three-point support laser receiving target at a pay-off hole, can solve the problems of light weight, weak ground gripping and easy running position touching, can avoid a pencil as a theodolite rearview reference object, and can be found by naked eyes and restored to the original position after being touched and run.
The invention is realized by the following technical scheme:
the utility model provides a three point support laser of unwrapping wire hole department receives target, is including laser receiver plate, backup pad and support column laser receiver plate upper surface draw the concentric circles of cross and a plurality of different diameters, the centre of a circle of concentric circles and the intersection point coincidence of cross the intersection point department of cross be provided with the integrative cylinder boss of laser receiver plate, the intersection point coincidence of cylinder boss circle mandrel and cross, backup pad and laser receiver plate rear end be connected the backup pad on install three groups the support column. The cylindrical boss can be directly used as a theodolite rear-view collimation reference object instead of a pencil. The supporting plate is used for connecting the laser receiving plate, and the laser receiving plate is in a suspension state.
The radius difference between two adjacent concentric circles on the laser receiving plate is 10 cm.
The support column including last hand twist bolt and lower hand twist nut, last hand twist bolt passes through the through-hole in the backup pad, the lower extreme precession lower hand twist nut, the bottom of lower hand twist nut for conical.
The diameter of the upper hand-screwed bolt and the diameter of the lower hand-screwed nut are both 10-15 mm, the height of the upper hand-screwed bolt is 10-15 mm, and the height of the lower hand-screwed nut is 20-25 mm.
The middle part of the supporting plate is provided with an observation port.
And a white point is arranged at the center of the top surface of the cylindrical boss.
The laser receiving plate is made of red transparent plastic materials.
The using method is that after the intersection of the cross lines and the laser focus are superposed, the top ends of the three support columns are pressed downwards and forcefully, so that the conical tips at the bottom of the lower-hand screwed nut are pricked into the surface of concrete, and the purpose is to prevent horizontal sliding. Even if the running position is touched carelessly, the conical tip can leave a moving track and a pit on the surface of the concrete, and the concrete can be restored according to the moving track and the pit. And erecting a theodolite, and after confirming that the laser receiving target has no displacement trace, looking back at the cylindrical boss at the center of the laser receiving target.
The invention has the advantages that: according to the three-point supporting column for the laser receiving target, the metal supporting column presses downwards under the self weight to grasp the concrete surface, the touch resistance of the laser receiving target is large, the laser receiving target is easy to sense by touch, after the laser receiving target is touched, the conical point of the metal supporting column leaves a conical pit and a moving track on the concrete surface, and the conical pit and the moving track can be clearly distinguished by naked eyes. According to the cone pits and the moving track, the three cone tips of the receiving target and the concrete face cone pits are directly restored correspondingly without re-measurement from the datum points. The laser receiving target center is provided with a convex column, so that a pencil is not required to be propped against the target center, and the laser receiving operation is facilitated.
Drawings
FIG. 1 is a plan view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is an exploded view of the present invention;
fig. 4 is a broad view of the present invention.
Detailed Description
As shown in fig. 1, 2, 3 and 4, a three-point support laser receiving target at a pay-off hole comprises a laser receiving plate 1, a support plate 2 and support columns 3, wherein a cross line 11 and a plurality of concentric circles 12 with different diameters are drawn on the upper surface of the laser receiving plate 2, the centers of the concentric circles 12 coincide with the intersection point of the cross line 11, a cylindrical boss 13 integrated with the laser receiving plate 1 is arranged at the intersection point of the cross line 11, the circular center of the cylindrical boss 13 coincides with the intersection point of the cross line 11, the support plate 2 is connected with the rear end of the laser receiving plate 1, and three groups of support columns 3 are mounted on the support plate 2. The cylindrical boss 13 can be directly used as a theodolite rear-view collimation reference object instead of a pencil. The supporting plate 2 is used for connecting the laser receiving plate 1 in a suspension state.
The two adjacent concentric circles 12 on the laser receiving plate 2 have a radius difference of 10 cm.
The support column 3 including hand screw bolt 31 and hand screw nut 32 down, hand screw bolt 31 passes through-hole 33 on the backup pad 2, the lower extreme precession hand screw nut 32 down, the bottom of hand screw nut 32 down be conical. The upper hand screw bolt 31 and the lower hand screw nut 32 are made of metal materials such as iron and stainless steel with high density.
The diameters of the upper hand-screwed bolt 31 and the lower hand-screwed nut 32 are both 10-15 mm, the height of the upper hand-screwed bolt 31 is 10-15 mm, the height of the lower hand-screwed nut 32 is 20-25 mm, the self weight can be increased due to a large size, and the sliding resistance is further increased.
The middle part of the supporting plate 2 is provided with an observation port 21, so that whether the peripheral concrete surface of the tip of the inverted cone of the bottom of the three hand-screwed nuts has a running mark or not can be observed at all angles.
The center of the top surface of the cylindrical boss 13 is provided with a white point so that the theodolite can be conveniently centered and operated or the theodolite can be conveniently observed.
The laser receiving plate 1 is made of red transparent plastic materials.
The cylindrical boss 13 can replace a pencil to be directly used as a theodolite sighting mark and can also be used as a theodolite centering mark.
The method comprises the following steps:
after the laser plummet is arranged, a three-point supporting laser receiving target at the pay-off hole is arranged above the pay-off hole 4 at the top layer, and three groups of supporting columns 3 on the supporting plate 2 are arranged on a concrete plate surface 5 outside the right-angled end of the pay-off hole 4 and are approximately in oblique symmetry axis symmetry relative to the pay-off hole 4. The laser receiving plate 1 is suspended above the pay-off hole 4, the cylindrical boss 13 is adjusted to the position coinciding with the laser focus, and the top ends of the three support columns 3 are pressed downwards by fingers at the same time, so that the inverted conical tip at the bottom of the lower hand screwed nut 32 is pricked into the surface of the concrete. Under the action of the dead weight of the support column 3, the whole sliding resistance is large.
After the concrete is poured, people can go to measure and pay off after the strength of the concrete surface layer reaches 1.2 MP/square, at the moment, the strength of the concrete is low, the inverted cone tip is easy to prick into the concrete surface, and under the condition that the inverted cone tip is touched, a cone pit is left and a scratch is left on the concrete surface. Therefore, the laser receiving plate is very easy to be found by observation after being touched and positioned.
Generally, two wire-releasing holes are arranged in a high-rise building, so that a second laser receiving target needs to be positioned in sequence. After the first line releasing hole is positioned by the laser plummet and the first laser receiving plate 1 is well positioned, the longitude and latitude can be arranged above the first laser receiving plate 1, and meanwhile, the laser plummet is arranged to the second line releasing hole and the target center of the second laser receiving plate is positioned. And confirming whether the two laser receiving plates are in the conical pits and the moving track on the surface of the concrete plate again before the theodolite at the first laser receiving plate aligns at the second laser receiving plate.
And positioning and pressing the second pay-off hole, and directly aiming the vertical wires of the longitude and latitude cross wires at the cylindrical boss under the condition that the inverted cones of the first laser receiving plate and the second receiving plate have no moving tracks. Before the alignment, it is confirmed whether the first and second laser receiver boards are out of alignment. And if any one laser receiving plate finds that the moving track and the conical pits exist, the three inverted conical tips and the conical pits are restored in a one-to-one correspondence mode. And after confirming that no running position exists or the in-situ theodolite is restored to confirm centering, aligning.
After the theodolite is set, the cross wire of the theodolite aims at the cylindrical boss 12, so that horizontal sliding is prevented. Even if the running position is touched carelessly, the conical tip can leave a moving track and a pit on the surface of the concrete, and the concrete can be restored according to the moving track and the pit. Erecting a theodolite, after confirming that the laser receiving target has no displacement trace, looking back at the cylindrical boss at the center of the laser receiving target,
the laser receiving target three-point supporting column, the metal supporting column pushes down under the dead weight to grasp the concrete surface, the laser receiving target touch resistance is large, and the laser receiving target is easy to be sensed by human touch. After the laser receiving target is touched, the conical tip of the metal supporting column can leave a conical pit and a moving track on the concrete surface, and the conical pit and the moving track can be clearly distinguished by naked eyes. According to the cone pits and the moving track, the three cone tips of the receiving target and the concrete face cone pits are directly restored correspondingly without re-measurement from the datum points. The laser receiving target center is provided with a convex column, and a pencil is not required to be propped against the target center.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A three-point support laser receiving target at a pay-off hole is characterized in that: including laser receiver plate, backup pad and support column laser receiver plate upper surface draw the concentric circles of cross line and a plurality of different diameters, the centre of a circle of concentric circles and the intersection point coincidence of cross line the intersection point department of cross line be provided with the integrative cylinder boss of laser receiver plate, the intersection point coincidence of cylinder boss circle mandrel and cross line, backup pad and laser receiver plate rear end be connected the backup pad on install three groups the support column.
2. The three-point support laser receiving target at a payoff hole as claimed in claim 1, wherein: the radius difference between two adjacent concentric circles on the laser receiving plate is 10 cm.
3. The three-point support laser receiving target at a payoff hole as claimed in claim 1, wherein: the support column including last hand twist bolt and lower hand twist nut, last hand twist bolt passes through the through-hole in the backup pad, the lower extreme precession lower hand twist nut, the bottom of lower hand twist nut for conical.
4. The three-point support laser receiving target at a payoff hole as claimed in claim 3, wherein: the diameter of the upper hand-screwed bolt and the diameter of the lower hand-screwed nut are both 10-15 mm, the height of the upper hand-screwed bolt is 10-15 mm, and the height of the lower hand-screwed nut is 20-25 mm.
5. The three-point support laser receiving target at a payoff hole as claimed in claim 1, wherein: the middle part of the supporting plate is provided with an observation port.
6. The three-point support laser receiving target at a payoff hole as claimed in claim 1, wherein: and a white point is arranged at the center of the top surface of the cylindrical boss.
7. The three-point support laser receiving target at a payoff hole as claimed in claim 1, wherein: the laser receiving plate is made of red transparent plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011409006.6A CN112683246B (en) | 2020-12-04 | 2020-12-04 | Three-point support laser receiving target at paying-off hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011409006.6A CN112683246B (en) | 2020-12-04 | 2020-12-04 | Three-point support laser receiving target at paying-off hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112683246A true CN112683246A (en) | 2021-04-20 |
| CN112683246B CN112683246B (en) | 2023-05-02 |
Family
ID=75447417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011409006.6A Active CN112683246B (en) | 2020-12-04 | 2020-12-04 | Three-point support laser receiving target at paying-off hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112683246B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204214445U (en) * | 2014-11-25 | 2015-03-18 | 中国建筑第七工程局有限公司 | A kind of laser unwrapping wire positioning auxiliaring tool |
| CN205027352U (en) * | 2015-10-20 | 2016-02-10 | 贾鹏 | A object positioning device for angular surveying |
| CN207894374U (en) * | 2018-03-19 | 2018-09-21 | 武汉大学 | A kind of high-rise building relative horizontal displacement on-Line Monitor Device based on CMOS |
| CN209927137U (en) * | 2019-06-17 | 2020-01-10 | 王剑 | Adjustable surveying and mapping support for land surveying and mapping |
| CN210108365U (en) * | 2019-07-10 | 2020-02-21 | 金丽华 | Laser marking instrument positioning support for building surveying and mapping |
-
2020
- 2020-12-04 CN CN202011409006.6A patent/CN112683246B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204214445U (en) * | 2014-11-25 | 2015-03-18 | 中国建筑第七工程局有限公司 | A kind of laser unwrapping wire positioning auxiliaring tool |
| CN205027352U (en) * | 2015-10-20 | 2016-02-10 | 贾鹏 | A object positioning device for angular surveying |
| CN207894374U (en) * | 2018-03-19 | 2018-09-21 | 武汉大学 | A kind of high-rise building relative horizontal displacement on-Line Monitor Device based on CMOS |
| CN209927137U (en) * | 2019-06-17 | 2020-01-10 | 王剑 | Adjustable surveying and mapping support for land surveying and mapping |
| CN210108365U (en) * | 2019-07-10 | 2020-02-21 | 金丽华 | Laser marking instrument positioning support for building surveying and mapping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112683246B (en) | 2023-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204781624U (en) | Floor elevation and roughness controlling means | |
| CN109610457B (en) | Pile foundation casing center positioning device and positioning method thereof | |
| CN213932497U (en) | C type wall body straightness detection device that hangs down | |
| CN112683246A (en) | Three-point support laser receiving target at pay-off hole | |
| CN211235871U (en) | Concrete slump detection device | |
| CN103376064A (en) | Building foundation ditch or side slope deformation monitoring method and building foundation ditch or side slope deformation monitoring reflection device | |
| CN111663786A (en) | Construction auxiliary tool for controlling thickness of concrete and using method thereof | |
| WO2023124244A1 (en) | Positioning device and use method therefor | |
| CN205619903U (en) | Deformation monitoring system | |
| CN215725941U (en) | Triangular laser receiving target | |
| CN204944456U (en) | Wall column formwork verticality laser detecting apparatus | |
| CN210658479U (en) | Pile position checking device for pile foundation in percussion drilling construction | |
| CN104153479B (en) | Reaction plate loading hole construction method and constructing device thereof | |
| CN209512722U (en) | A kind of floor concreting measurer for thickness | |
| CN213579374U (en) | Wall body framework of steel reinforcement location measurement mark frame device | |
| CN201133817Y (en) | Super high steel structure column measurement and correction base | |
| CN206099167U (en) | Can change cable termination post insulators strutting arrangement with electricity | |
| CN211904997U (en) | Concrete mixture expansion degree measuring device | |
| CN218297177U (en) | High floor wall post straightness actual measurement instrument that hangs down | |
| CN218864949U (en) | Engineering construction manages and uses thickness check out test set | |
| CN219956365U (en) | Device for detecting thickness of concrete cast-in-situ slab | |
| CN210464314U (en) | Detector for thickness of concrete negative bending moment steel bar protection layer | |
| CN221031556U (en) | Steel construction pre-buried bolt positioner | |
| CN217687156U (en) | High accuracy is steel bar protective layer thickness detection device for construction | |
| CN214792992U (en) | Monitoring device for horizontal displacement and deformation of vertical rod of temporary support system for building construction |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |