Water drainage device for pendulum coordinatograph

Abstract

The invention discloses a water drainage device for a pendulum coordinatograph, relates to the field of peripheral auxiliary tools of the pendulum coordinatographs, and aims at the technical problemsthat a detection result is affected by the fact that a conventional waterproof and dustproof hood sputters water easily and the service life is affected by the fact that a fixing device is easy to oxidize and corrode. The water drainage device comprises a body, wherein the body is of a right square pyramid structure; a pendulum hole for installing a pendulum in a penetrating manner is formed fromthe top point of the pyramid to the bottom surface; a drainage block is fixedly arranged at the triangular lower part of the body; the drainage block is of an arc structure; the circle center of the arc is located in the bottom surface direction of the body, and a distance between two end points of the arc structure is shorter than the edge length of the body. Through the adoption of the body of the right square pyramid structure and the fixed arrangement of the drainage block at the triangular lower part of the body, water flow can be guided to four bottom corners of the body along an arc-shaped door of the drainage block, so as to facilitate centralized treatment, and the problem of influence on the detection due to easy water dropping and sputtering in the prior art is solved.

Description

technical field [0001] The invention relates to the field of peripheral auxiliary tools for a plummet, in particular to a drainage device for a plummet. Background technique [0002] The plumb meter is a traditional instrument for measuring the horizontal displacement and deformation at different elevations, and is widely used in monitoring the horizontal displacement and dam body deflection of dams at different elevations. According to the fixing method of the fixed end of the vertical line, the vertical line measuring device is divided into two types: positive hammer line and inverted hammer line. The vertical line measuring device establishes a vertical datum with a freely stretched metal wire, and the plumb line instrument can understand the horizontal displacement and deformation of the marker by measuring the slight change of the distance between the vertical line datum and its nearby markers over time. Because the working environment of the instrument is usually hars...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a drainage device for a plumb line meter, which is used to solve the problem that the existing waterproof and dustproof cover is made into a cone shape. Although it can prevent water droplets from moving downward along the vertical line, the water droplets will reach the bracket or detection device after dripping from the edge of the cone. Sputtering still affects the test results. In addition, the existing structure that fixes the waterproof and dustproof cover on the vertical line adopts the bridge screw fixing method, which is inconvenient to install and affects the water collection effect. It is easy to cause water droplets to stay on the bridge and screws for a long time. Oxidation corrosion, technical problems affecting service life

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