CN202522227U

CN202522227U - Leveling rod head provided with hanging hole

Info

Publication number: CN202522227U
Application number: CN2012200891322U
Authority: CN
Inventors: 唐诗华; 卢献健
Original assignee: Guilin University of Technology
Current assignee: Guilin University of Technology
Priority date: 2012-03-08
Filing date: 2012-03-08
Publication date: 2012-11-07
Anticipated expiration: 2022-03-08

Abstract

The utility model discloses a leveling rod head provided with a hanging hole. The leveling rod head is provided with a through hole (1) along a through hole direction (4) of a front-back direction a round spherical face (2) protruding upwards is arranged above the through hole (1), a peak of the round spherical face (2) and a barycenter of the leveling rod are in the same plumb line, and two side faces of the through hole (1) are inclined planes (3) opened from inside to outside. When the leveling rod head provided with the hanging hole is used, a leveling rod can be hung straight at a measurement mark embedded at a high location and achieve measurement indication, so that inverted measurement arrangement is not needed on an instrument. The leveling rod is automatically in a plumb state with no need for a person to hold the leveling rod, and high measurement efficiency and accuracy are guaranteed.

Description

The levelling pole chi head that has suppending hole

Technical field

The utility model belongs to the measurement of the level field in the Surveying Engineering, but particularly a kind of chi head of vertical hanging levelling pole.

Background technology

Measurement of the level is the common method of settlement monitoring.Chi pin, blade and top chi head that existing levelling pole generally includes the bottom constitute.In the measurement, the settlement monitoring sign is embedded in lower position usually and measures with convenient upright chi, but constructed or artificial destruction by surrounding environment influence.The monitoring sign also can be embedded in higher position sometimes; When observation, need measure with the method for being inverted levelling pole; But need on instrument, do the corresponding option setting, levelling pole also is not easy to keep the vertical state in addition, so can have influence on the efficient and the precision of measurement.

Summary of the invention

The purpose of the utility model is the deficiency that overcomes prior art; A kind of chi head that has suppending hole that makes the levelling pole vertical hanging is provided; Can levelling pole just be suspended to during use and bury underground on the pinnacled survey mark and accomplish survey measurements, need on instrument, not do the measurement of falling chi setting, and ruler can be in the vertical state automatically; Do not need manual work to hold up chi, guaranteed higher efficiency of measurement and precision.

The utility model is achieved in that offers a through hole direction for positive on the levelling pole chi head---the through hole of back side direction; The ball face of an epirelief is offered in the top of through hole; The peak of epirelief ball face and the center of gravity of levelling pole on a pedal line, outwardly open inclined-plane in the left and right sides face of through hole is served as reasons.

The beneficial effect of the utility model is:

1, the center of gravity of the peak of through hole epirelief ball face and levelling pole is on a pedal line; Make levelling pole be suspended to monitoring and indicate that last time can be in the vertical state automatically; Guarantee the stability and the high precision of measured value, do not need manual work to hold up chi simultaneously, significantly alleviate operating personnel's labour intensity;

2, become the opening inclined-plane about through hole from inside to outside, can make levelling pole after suspension is good, make certain amplitude and rotate, towards the instrument direction, make things convenient for reading with the front that guarantees levelling pole;

3, levelling pole can just be hanging to monitor and indicate through the through hole on the chi head, efficiency of measurement and precision height, and the monitoring point is buried higher position underground, the destruction that can prevent artificially and construct, the continuity of assurance settlement monitoring.

Description of drawings

Fig. 1 is the perspective view of the utility model levelling pole chi head.

Fig. 2 is the utility model front elevation.

Fig. 3 is the utility model vertical view.

Fig. 4 is the utility model left view.

Be labeled as among the figure: the 1-through hole; The ball face of 2-epirelief; 3-is the inclined-plane of opening from inside to outside; 4-through hole direction.

Embodiment

Embodiment:

On levelling pole chi head, offer a through hole direction 4 for positive---the through hole 1 of back side direction; The ball face 2 of an epirelief is offered in the top of through hole 1; The peak of epirelief ball face 2 and the center of gravity of levelling pole are on a pedal line, and the left and right sides face of through hole 1 is designed to the inclined-plane 3 of opening from inside to outside.

Claims

1. levelling pole chi head that has suppending hole; It is characterized in that: offer a through hole direction (4) on the levelling pole chi head for positive---the through hole (1) of back side direction; The ball face (2) of an epirelief is offered in the top of through hole (1); The peak of epirelief ball face (2) and the center of gravity of levelling pole on a pedal line, outwardly open inclined-plane (3) in the left and right sides face of through hole (1) is served as reasons.