CN202329634U

CN202329634U - Measuring nail

Info

Publication number: CN202329634U
Application number: CN2011203275972U
Authority: CN
Inventors: 陈心一; 姚云峰; 陶波; 唐杰; 邓红光
Original assignee: CHENGDU PULUOMI NEW TECHNOLOGY Co Ltd
Current assignee: CHENGDU PULUOMI NEW TECHNOLOGY Co Ltd
Priority date: 2011-09-02
Filing date: 2011-09-02
Publication date: 2012-07-11
Anticipated expiration: 2021-09-02

Abstract

The utility model provides a measuring nail capable of meeting high-precision measurement demands. The measuring nail comprises a nail cap and a nail body, wherein the center of the upper surface of the nail cap is provided with a tapered groove. Because the tapered groove is arranged on the nail cap, a square groove formed at a crossing point due to a certain width in a crossing line is effectively avoided, a measurement apparatus can be accurately aligned; the measuring nail is pre-embedded in a required position, the measurement apparatus is erected by using the matching of a tripod at a fixed height and the tapered groove on the nail cap, so that the measurement apparatus can be accurately aligned and has the fixed height, errors caused by manual measurement of the height of the measurement apparatus and manual alignment are eliminated; and the measuring nail is especially suitable for application environments, such as high-precision industrial measurement and high-speed railway building and maintaining, with high-precision measurement demands.

Description

Survey nail

Technical field

The utility model relates to a kind of survey mark, particularly relates to a kind of survey nail.

Background technology

Disclosed No. 3 parts of ZL88218985.9 are conventional survey mark, the portrayal of hemispheric top have cross curve, the point of crossing of cross curve be measuring equipment to a position, the bottom is embedded in the concrete.This survey mark is used very general in routine measurement; But can't satisfy commercial measurement, high-speed railway is built high-acruracy survey demands such as maintenance; Reason is: 1) cross curve has certain width; Can form a foursquare groove at point of crossing place, surveying instrument to some the time just exist than mistake; 2) be difficult to place special-purpose tripod on the routine measurement sign, can only set up instrument with conventional tripod, instrument needs manual work to measure apart from the height of survey mark, and this has introduced the inaccurate error of height of instrument again.

The utility model content

The utility model technical matters to be solved provides a kind of survey nail that can satisfy the high-acruracy survey demand.

The technical scheme that the utility model technical solution problem is adopted is: survey nail, comprise the head of a nail and nail body, be provided with conical socket in the center of the upper surface of the said head of a nail.

Further, the said head of a nail and nail are as integrative-structure.

Further, said nail body is positioned at the center of the head of a nail.

Further, the central point of the said head of a nail is passed in the axis of said nail body.

Further, the axis of said nail body is vertical with the head of a nail.

Further, the axis of said conical socket overlaps with the axis of nail body.

The beneficial effect of the utility model is: because the head of a nail is provided with conical socket, effectively avoided because the square indentations that forms in the place, point of crossing that cross curve exists certain width to cause, surveying instrument can be accurately to point; The utility model is embedded in the position that needs; The conical socket that is provided with on the tripod that utilizes level altitude and the head of a nail cooperates and sets up surveying instrument; Surveying instrument accurate centering and height of instrument are fixed; Eliminating the people is to measure the high and artificial error to point of instrument, is particularly suitable for the applied environment of high-acruracy survey demand, and for example high precision commercial measurement, high-speed railway are built maintenance etc.

Description of drawings

Fig. 1 is the cut-open view of the front view of the utility model.

Fig. 2 is the vertical view of Fig. 1.

Embodiment

As depicted in figs. 1 and 2, the survey nail of the utility model is made up of with nail body 3 head of a nail 1 of integrative-structure, and nail body 3 is positioned at the center of the head of a nail 1, and the central point of the head of a nail 1 is passed in the axis of preferably following closely body 3, and the axis of nail body 3 is vertical with the head of a nail 1.Center at the upper surface of the head of a nail 1 is provided with conical socket 2, and the axis of conical socket 2 overlaps with the axis of nail body 3.

During use, nail body 3 is embedded in the concrete of relevant position, utilizes the adapter supporting, can accurately measure the three-dimensional coordinate at conical socket 2 places with conical socket 2.Need to use and to locate coordinate time; The conical socket 2 that is provided with on the tripod that utilizes level altitude and the head of a nail 1 cooperates and sets up surveying instrument; Surveying instrument accurate centering and height of instrument are fixed, and eliminating the people is to measure the high and artificial error to point of instrument, has greatly improved measuring accuracy; Be particularly suitable for the applied environment of high-acruracy survey demand, for example high precision commercial measurement, high-speed railway are built maintenance etc.

The material of the utility model can be steel, copper material or other materials, and the change of outward appearance is the rational Application of the utility model and changes usually, all should be included in the protection domain of the utility model.

Claims

1. survey nail, comprise the head of a nail (1) and follow closely body (3), it is characterized in that: the center at the upper surface of the said head of a nail (1) is provided with conical socket (2).

2. survey nail as claimed in claim 1 is characterized in that: the said head of a nail (1) and nail body (3) are structure as a whole.

3. survey nail as claimed in claim 1, it is characterized in that: said nail body (3) is positioned at the center of the head of a nail (1).

4. survey nail as claimed in claim 1, it is characterized in that: the central point of the said head of a nail (1) is passed in the axis of said nail body (3).

5. survey nail as claimed in claim 1, it is characterized in that: the axis of said nail body (3) is vertical with the head of a nail (1).

6. survey nail as claimed in claim 1 is characterized in that: the axis of said conical socket (2) overlaps with the axis of nail body (3).