CN88203897U

CN88203897U - Vertical line instrument

Info

Publication number: CN88203897U
Application number: CN 88203897
Authority: CN
Inventors: 扬文国
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-03-30
Filing date: 1988-03-30
Publication date: 1988-12-14

Abstract

The utility model provides an improved vertical line instrument, which is mainly used for measuring the deformation and displacement of hydroelectric large dams. The basic structure of the improved vertical line instrument is that the setting base of the improved vertical line instrument is provided with a measuring device and a pointing system with X direction and Y direction light path parts, and the top tart of the improved vertical line instrument is respectively provided with a longitudinal level and a transverse level. Comparative with former vertical line instruments, the improved vertical line instrument saves a measuring device, a focusing device, and an eyepiece system, and therefore, the improved vertical line instrument has the advantages of simple structure, small volume, light weight, low cost, and convenient operation, etc.

Description

Vertical line instrument

The utility model relates to a kind of instrument that the water power dam deformation is measured that is used for.

Displacement, distortion for the water power dam are measured, well-known is to adopt vertical line to measure, what its concrete mode generally adopted in one's early years is that reading microscope is measured its X, Y both direction respectively, and draw the result of dam deformation, displacement, this mode need be installed two pedestals, two cover measurement mechanisms, measure respectively for twice and need twice Anping instrument again, make that the cost of equipment is higher, and use is also very loaded down with trivial details.Over advancing year, so far the surveying instrument of Shi Yonging just is placed on original X, Y two cover measurement mechanisms on Anping pedestal, only be than in the past minimizing a pedestal, still have cost height, the loaded down with trivial details problem of use.

The purpose of this utility model provides a kind of improved three-dimensional plumb instrument, can utilize a cover measurement mechanism that X, the Y of dam, the relative displacement in three orientation of Z are measured.

Fig. 1, one-piece construction figure of the present utility model;

Fig. 2, structural principle synoptic diagram of the present utility model.

Specify the utility model purpose implementation below in conjunction with accompanying drawing.

See Fig. 1, measurement mechanism (2) and sighting system (3) are housed on Anping pedestal (1), be equipped with plate level (4), (5) of vertical, horizontal at its top respectively.

The measurement mechanism (see figure 2) is made of measurement guide rail (6), accurate screw mandrel (7), top bearing (8), screw mandrel bearing (9), reading drum (10), scale (11).

The sighting system (see figure 2) by guide rail (12), slightly plate (13), transfer to hand over wheel (14) and optical system to form.X forms to object lens (23), catoptron (15), (16), (17), field lens (18), graticule (19), eyepiece (20) to optical routing X in its optical system, and Y pieces together to go into X to light path to optical routing fixed pan catoptron (25), Y to object lens (24), plane mirror (21), deviation mirror (22).Z can be read by graticule (19) to changing.

Concrete using method is: with Y to sight microscope axle and measurement axis (axial line of measurement mechanism) angle at 45, be that Y is to measured point and the measurement axis sight microscope visual field that enters at 45, as Fig. 2, A is the measured point, BC is parallel with measurement axis, AB is that Y is to axis of sighting, then △ ABC is an isosceles triangle, and AC=BC is when point moves to A ' time, the reading drum (10) of palpus wheel measuring device, make guidance axis AB move to A ' B ' and locate, focusing is seen and is checked A ' again, BB '=AA ' then, promptly the amount of movement BB ' of measurement mechanism equals the variables A A ' of an A.

Y to aligning microscope object lens (24) preceding put a fixed pan catoptron (25) make Y to light path be converted into X to light path parallel, behind object lens (24), piece together X again to light path by Y.

By above-mentioned, main feature of the present utility model is that two-way light can adopt cover focus control and an eyepiece system.

The utility model and plumb instrument have in the past relatively been saved a cover measurement mechanism and a cover focus control and a cover eyepiece system, thereby have been made compact conformation simple, and volume is little, in light weight, and cost is reduced widely, and it is also very convenient to manipulate.

Claims

1, a kind of novel plumb instrument is by being equipped with measurement mechanism (2) and sighting system (3) on Anping pedestal (1), and the plate level (4), (5) that are equipped with vertical, horizontal at its top respectively constitute, and it is characterized in that:

Measurement mechanism: constituted by measurement guide rail (6), accurate screw mandrel (7), top bearing (8), screw mandrel bearing (9), reading drum (10), scale (11).

Sighting system: by guide rail (12), plate (13), focusing wheel (14) and the X that is made up of to object lens (23), catoptron (15), (16), (17), field lens (18), graticule (19), eyepiece (20) X are constituted to the optical system that light path and the Y that is made up of to object lens (24), plane mirror (21), deviation mirror (22) fixed pan catoptron (25), Y form to light path slightly.