CN206609433U - A kind of polygon prism measures sighting means - Google Patents

Abstract

A kind of polygon prism measures sighting means, including base, and base top is all around to be provided with prism in cup-like structure, cup-like structure, and cup-like structure inner bottom part center is provided with level(l)ing bubble；Base bottom is connecting portion, and connecting portion is with being connected rod locking.A kind of polygon prism measurement sighting means that the utility model is provided, by the multiple directions setting prism on base, can substantially reduce rotation sighting mark error, while saving department mirror personnel.

Description

A kind of polygon prism measures sighting means

Technical field

The utility model is related to sighting means, especially a kind of to be applied to carry out multiple directions observation to same control point Measure sighting means.

Background technology

Sighting means used in conventional control measurement is all single prism.Will single prism be erected on control point it is solid It is fixed, it is directed at observation instrument（Such as total powerstation）, instrument is observed after accurately sighting, and instrument is removed behind station, then by single prism rotation side To realigning instrument.So it is accomplished by each prism and arranges a department mirror person, while needs to be changed prism according to survey station Rotated, if prism has been fixed in a direction, re-rotated to behind another direction, due to flattening the shadow with centering Ring, and the workpiece manufacture back lash error of itself, single prism measurement apparatus can produce some centerings and observation error.

And high ferro CPIII horizontal control surveys technical requirement is very high, error ± 1.0mm in range measurement, relatively Position Zhong Wu Cha≤± 2.0mm, consecutive points repetition measurement compare Cha≤± 2.0mm are put after positional accuracy ± 1.0mm, plane net constraint adjustment. Once transfiniting, all to observe again.Require very high because CP III controls the measurement apparatus of net to repeat placement accuracy, it is same set of to survey The repeated alignment error and interchangeability alignment error for measuring device should be less than ± 0.3mm.Therefore, high ferro CPIII measurement and During subway Surveying of Precise Control, often occur because the feelings that measurement error transfinites are caused in single prism large rotation direction Condition.The especially repetition measurement during high ferro is runed or monitoring, the window phase effectively measured only has the short 3 ~ 4 small of late into the night stoppage in transit When, the precision and efficiency requirements to measurement are very high, and CPIII measures often station observed direction number about 10 ~ 12, i.e., need to set every time 10 ~ 12 prisms are put, it is on duty also very uneconomical that each prism installs a people.

And 360 degree of prism precision are low, mapping is typically only applicable to, is not also applied in these places.

The content of the invention

Technical problem to be solved in the utility model is to provide a kind of polygon prism measurement sighting means, can be to same control Point carries out multiple directions observation, eccentric error effectively caused by the rotation of reduction sighting means, improves the uniformity essence of repeated measures Degree.Also the labor intensity of reduction department mirror personnel or saving department mirror personnel simultaneously, raising measure the precision and efficiency of operation.

In order to solve the above technical problems, the technical scheme that the utility model is used is：

A kind of polygon prism measures sighting means, including base, base top be in cup-like structure, cup-like structure all around Just to being provided with prism, cup-like structure inner bottom part center is provided with level(l)ing bubble；Base bottom is connecting portion, and connecting portion is with being connected Rod locking.

The small prisms of model total powerstation universal standard ADS101mini of the prism.

The connecting portion is hollow circular cylinder, and connecting rod is socketed with hollow circular cylinder and locked by bolt.

The hollow circular cylinder center is provided with positioning convex.

The connecting rod is the screw mandrel that lower end sets screw thread, and screw mandrel is connected with built-in fitting screw thread.

The connecting rod is centering rod of the lower end with steel pricker.

The cup-like structure is gone forward on the rear left right side, reflective membrane is posted in the place for the installation prism that do not drill.

Built-in fitting in a kind of polygon prism measurement sighting means of the utility model, the device can be according to the embedded of control point Position is flexibly selected；Connecting rod can be using the centering rod that can be used alone with the matching used screw rod of built-in fitting or with steel pricker, this The applicable different measurement demand of sample；Multigroup prism can be reduced and repeated according to field observation station and observed direction flexible combination Property alignment error and interchangeability alignment error.Because the device has the characteristic of forced centering, uniformity precision is high, particularly suitable In carrying out multi-direction observation simultaneously to same control point, surveyed in CPIII measurements and the monitoring of operation phase, the subway work control of high ferro Amount and monitoring, slope monitoring and when being used as permanent measurement control point it is very useful.In addition, the device can be preserved for a long time, Its is simple in construction, easy for installation, repetition placement accuracy is high, and manual intervention is few during use, and operating efficiency is high.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples：

Fig. 1 is top view of the present utility model.

Fig. 2 is the front view of installation prism rear base in the utility model.

Fig. 3 is the front view of connecting rod in the utility model（The first）.

Fig. 4 is built-in fitting front view in the utility model.

Fig. 5 is the front view of connecting rod in the utility model（Second）.

In figure：Base 1, prism 2, level(l)ing bubble 3, connecting rod 4, built-in fitting 5, positioning convex 6.

Embodiment

As Figure 1-4, the present apparatus is made up of three parts：Part I is polygon prism pedestal 1, and the top of pedestal 1 is one The hollow cup-shaped stainless steel pedestal of long 50mm squares, four side thickness are 5mm, per side center hollow out thread into screwed hole, and pedestal leads to Cross screwed hole to be connected with the small prisms of total powerstation universal standard ADS101mini, the prism effective diameter：Φ 25.4mm, prism are normal Number：ADS101 ,+17.5mm, market are on sale.Matching thread is connected, it is ensured that sighted from four direction during prism all accurately puts.It is each Reflective membrane is sticked in the place of non-hollow out drilling on face, facilitates night to find target and accurately sight.The assembling of pedestal cup bottom centre One high-accuracy aluminum alloy shell justifies level(l)ing bubble 3, and size is 25*15*12mm（Market is on sale, race diameter 25, upper circular diameter 15mm, upper round height 8mm, total height 12mm）.Pedestal bottom is one bolt of processing in the middle of hollow circular cylinder, cylinder, is used for Fixed connecting rod.In order to ensure the axiality after connecting rod, cylinder installation, upper surface center is provided with convex in hollow circuit cylinder body Rise, secondary positioning can be carried out when being so socketed with connecting rod, it is ensured that connection is accurate, it is to avoid deflection.

Part II is connecting rod 4, connecting rod 4 diameter 16mm, long 100mm, upper end and the hollow circular cylinder set of pedestal 1 Connect, locked by bolt, the lower end thread of connecting rod 4 is into thread segment, thread segment and the supporting connection of built-in fitting, screw thread segment length 25mm. Connecting rod has another form, and bottom connects centering steel pricker, and it is acted on then as common single prism bar.

Part III is hollow circular cylinder built-in fitting 5, built-in fitting external diameter 32mm；Length 60mm；The center of built-in fitting 5 is drilled with spiral shell Pit, internal diameter 16mm；Length 30mm.

Specific assembling process：

The position at embedded measurement control point is being needed to bury built-in fitting, vertically embedded built-in fitting there are two kinds of installation methods, One is buried in concreting, and another is the drill bit using diameter 50mm or so, bores depth 80mm.It should be noted that when embedded pre- Embedded part should try one's best vertically, fill hole position using cement or Anchor Agent, lay built-in fitting, it is ensured that erect and install and accurately adjust pre-buried Part, makes the built-in fitting mouth of pipe slightly higher than concrete surface, and Anchor Agent is extruded along built-in fitting outer wall surrounding.Treat cement or Anchor Agent Rechecked, device must be consolidated, can not be rocked after solidification, must be without any foreign matter in device.Built-in fitting is embedded complete and without using When, Dustproof plastic lid is added, carrying out influence built-in fitting in built-in fitting to prevent foreign matter uses and its precision.

The built-in fitting buried perpendicular to side wall is, it is necessary to which adjustment built-in fitting level of trying one's best, makes the built-in fitting mouth of pipe vertical, be easy to company Connect.

The special position of built-in fitting, such as metal structure surface, then using welded and installed support can not be buried at some Built-in fitting is welded on suitable position by mode.The sighting means is used by connecting rod again.

If using the connecting rod with centering steel pricker, can flexibly be surveyed with being used common prism bar More than amount and setting-out, especially both direction measure simultaneously under conditions of, precision and the common prism of efficiency ratio are much higher.

The sighting means can need to be carried out according to observed direction in four direction installs four prisms, but real work It is applied in combination, such as in underground chamber Traverse Survey, mainly fore-and-aft direction is observed, then two ribs is set before and after only needing to Mirror.If permanent backsight control point is aloft set, four prisms can be installed, facilitate the total powerstation of different directions while entering Row observation.And two prisms of fore-and-aft direction or three can be selected according to the particular location of survey station in CPIII horizontal control surveys Individual prism.

The measurement apparatus can be also used for arranging monitoring point or the working base point of corner intersection, and two total powerstations are not simultaneously Direction is sighted most suitably used during measuring point, can significantly improve accuracy of observation.

Claims (7)

1. a kind of polygon prism measures sighting means, it is characterised in that：Including base（1）, base（1）Top is cup-like structure, cup All around just to being provided with prism in shape structure（2）, cup-like structure inner bottom part center is provided with level(l)ing bubble（3）；Base（1） Bottom is connecting portion, connecting portion and connecting rod（4）Locking.

2. a kind of polygon prism measurement sighting means according to claim 1, it is characterised in that：The prism（2）For whole station The small prisms of instrument universal standard ADS101mini.

3. a kind of polygon prism measurement sighting means according to claim 1, it is characterised in that：The connecting portion is hollow circle Cylinder, connecting rod（4）It is socketed and is locked by bolt with hollow circular cylinder.

4. a kind of polygon prism measurement sighting means according to claim 3, it is characterised in that：The hollow circular cylinder center Provided with positioning convex（6）.

5. a kind of polygon prism measurement sighting means according to claim 1, it is characterised in that：The connecting rod（4）For under End sets the screw mandrel of screw thread, screw mandrel and built-in fitting（5）Screw thread is connected.

6. a kind of polygon prism measurement sighting means according to claim 1, it is characterised in that：The connecting rod（4）For under Hold the centering rod with steel pricker.

7. a kind of polygon prism measurement sighting means according to claim 1, it is characterised in that：Before and after in the cup-like structure On the face of left and right, do not drill installation prism（2）Place post reflective membrane.