CN201715979U - Portable measuring instrument - Google Patents

Abstract

A portable measuring instrument comprises a main scale template, wherein one side of the main scale template is provided with a concave groove, one side of an auxiliary measuring scale is provided with an auxiliary measuring scale convex groove, the main scale template is connected with the auxiliary measuring scale through the auxiliary measuring scale convex groove, the other side of the main scale template is provided with a convex groove, one side of a sliding block is nested on the convex groove, the other side of the sliding block is provided with a rotary switch, an inner antenna with calibrations is installed on the rotary button, an outer antenna with calibrations is nested on the inner antenna with calibrations, and the outer antenna with calibrations is provided with a sliding pointer; and the portable measuring instrument also comprises a collimator and a tripod. The portable measuring instrument provided by the utility model can be used for measuring object distance and object height of objects simultaneously by utilizing the principle that length of sides of similar triangles has equal ratio in geometry, has small volume, convenience in use and operation, and low manufacturing cost, and is suitable for large-scale generalization and application.

Description

Portable surveying instrument

Technical field

The utility model relates to a kind of measurement optical instrument, especially a kind of portable surveying instrument of measuring object distance and object height.

Background technology

Existing measurement with optical instrument can only Measuring Object object height or object distance; can not realize surveying function high and that survey is far away simultaneously; and price comparison costliness; bulky; not portable, the professional knowledge of using operation to relate to is more, and instrument uses complicated; layman's operation encounters problems through regular meeting, is not suitable for promoting the use of on a large scale.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of portable surveying instrument simple in structure, has overcome the defective of existing measurement with optical instrument, and energy is the object distance and the object height of Measuring Object simultaneously, and volume is little, use is easy to operate, low cost of manufacture.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of portable surveying instrument, comprise the main scale template, main scale template one side is provided with groove, subsidiary chi one side is provided with subsidiary chi tongue, the main scale template is connected with the subsidiary chi by subsidiary chi tongue, main scale template opposite side is provided with tongue, slide block one side is nested on the tongue, the slide block opposite side is provided with knob, the inboard antenna of band scale is installed on the knob, and the outside antenna of band scale is nested on the inboard antenna of band scale, on the outside antenna of band scale sliding pointer is installed.

It also comprises point instrumentation and tripod.

The portable surveying instrument that the utility model provides, because the outside antenna of band scale is nested on the inboard antenna of band scale, realized the scalable of the outside antenna of band scale and the inboard antenna of being with scale, because the inboard antenna of band scale is connected with the main scale template by slide block, the inboard antenna of band scale can move on the main scale template, its displacement can be measured, utilize the scale on inboard antenna and the outside antenna can estimate the object height of object on antenna that to measure, utilize the principle of the length of side geometric ratio of similar triangles in how much, object height and the main scale template distance calculation that move the thing long and object distance that obtain survey object of the object that can obtain according to range estimation on antenna, volume is little, use easy to operate, low cost of manufacture is suitable for large application scope; Utilize point instrumentation can realize accurate aiming, utilize tripod can realize the stability of measurement component, guaranteed the accurate of the data of surveying.

Description of drawings

Below in conjunction with drawings and Examples patent is described further: Fig. 1 is a structural representation of the present utility model; Fig. 2 is a right view of the present utility model; Fig. 3 is an A-A cut-open view among the utility model Fig. 1; Fig. 4 is measuring principle figure of the present utility model.

Embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises main scale template 3, main scale template 3 one sides are provided with groove, subsidiary chi 2 one sides are provided with subsidiary chi tongue 4, main scale template 3 is connected with subsidiary chi 2 by subsidiary chi tongue 4, main scale template 3 opposite sides are provided with tongue 4, slide block 5 one sides are nested on the tongue 4, slide block 5 opposite sides are provided with knob 6, the inboard antenna 7 of band scale is installed on the knob 6, the outside antenna 8 of band scale is nested on the inboard antenna 7 of band scale, on the outside antenna 8 of band scale sliding pointer 11 is installed.

It also comprises point instrumentation 9 and tripod 10.

Measuring principle of the present utility model when using the utility model to measure, is regulated knob 6 and is made the outside antenna 8 of band scale vertical with main scale template 3 as shown in Figure 4, promotes slide block 5, the scale M of record slide block 5 on main scale template 3; (two-end-point is P by point instrumentation 9 scanning objects 1, Q), regulating sliding pointer 11 aligns with measurement point, the up and down scale Z of record object 1 on the outside antenna 8 of band scale, C, (two-end-point is U to hang a mark 12 on object 1, V), after the said method aiming, the up and down scale A of record mark thing 12 on the outside antenna 8 of band scale, B; Promoting slide block 5 moves a certain distance, the scale M ' of record slide block 5 on main scale template 3, with above-mentioned same method aiming object 1, the up and down scale E of record object 1 this moment on the outside antenna 8 of band scale, F can obtain corresponding parameters, the corresponding formula of utilization can obtain the object distance and the object height of required Measuring Object 1, concrete parameter obtains with application of formula as follows: symbol description: 1, l is the distance of OO ', and O ' is an aiming point, the object distance of promptly required Measuring Object 1; 2, y is the distance of 1 two sections points of required Measuring Object PQ, i.e. object height; 3, x is the distance that scale moves, i.e. the distance of MM '; 4, e is the height of mark 12, i.e. the distance of UV; 5, E is the length that mark 12 is surveyed in scale M place, the i.e. distance of AB; 6, m is the length that required Measuring Object 1 is surveyed in the M place, the i.e. distance of ZC; 7, m ' is the length that required Measuring Object 1 is surveyed in M ' place, the i.e. distance of EF; W is the intersection point of human eye retina's 14 residing position place straight lines and OO ' extended line, can release following formula according to the principle of the length of side geometric ratio of similar triangles in the geometry: $\frac{m}{m^{\′}}=\frac{{\mathrm{MO}}^{\′}}{M^{\′}{O}^{\′}}$ ……………………① $\frac{E}{e}=\frac{{\mathrm{MO}}^{\′}}{l}$ ……………………② $\frac{0.5*y}{l}=\frac{0.5*(m^{\′}-m)}{x}$ 3. obtain calculating the formula of object distance and object height by above-mentioned formula: the object distance formula: $l=\frac{\mathrm{mex}}{(m^{\′}-m)*E}$ The object height formula: $y=\frac{\mathrm{me}}{E}$

Claims (2)

1. portable surveying instrument, comprise main scale template (3), it is characterized in that: main scale template (3) one sides are provided with groove, subsidiary chi (2) one sides are provided with subsidiary chi tongue (4), main scale template (3) is connected with subsidiary chi (2) by subsidiary chi tongue (4), main scale template (3) opposite side is provided with tongue (13), slide block (5) one sides are nested on the tongue (4), slide block (5) opposite side is provided with knob (6), the inboard antenna (7) of band scale is installed on the knob (6), the outside antenna (8) of band scale is nested on the inboard antenna (7) of band scale, on the outside antenna (8) of band scale sliding pointer (11) is installed.

2. portable surveying instrument according to claim 1 it is characterized in that: further comprising point instrumentation (9) and tripod (10).

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