CN203298732U - External casing taximeter - Google Patents

Abstract

The utility model belongs to the detector equipment field, and provides an external casing taximeter. The external casing taximeter is characterized by comprising a support used for mounting a roll shaft, a driving rotating wheel which is sleeved on the roll shaft and is provided with a wire clamping slot, a rope wound on the wire clamping slot, an encoder and a signal storage device, wherein the encoder is coaxially sleeved on the roll shaft, the encoder has a light-electric signal conversion module, and the signal storage device is connected with the encoder. The external casing taximeter effectively reduces external casing measurement errors from 2-5% to 0.2-0.5%, has properties of simple structure, low manufacturing cost, excellent performance, high precision and practical and convenient performance and is especially applicable to measurement and construction of a non-excavation underground pipeline.

Description

Manage outer taximeter

Technical field

The utility model belongs to the underground survey apparatus field, particularly the outer taximeter of a kind of pipe.

Background technology

For a long time, the Underground Crossing control is larger with brill plotting system error to technology, and the measuring technique after particularly being completed lags behind, and causes underground pipeline project completion data information and pipeline real coordinate position error larger, is unfavorable for underground pipeline construction and society's utilization.

At present, mainly with Tracing instrument, measure underground utilities, because this kind technology is also immature, generally use the Tracing instrument repeated measurement repeatedly, average.Length direction is due to the Instrument Design defect, and the complexity of underground utilities environment is unpredictable, and error in length is generally in the 2-5% left and right.

Therefore, underground survey apparatus field is badly in need of a kind of outer taximeter of a kind of pipe that error in length is little, degree of accuracy is high of measuring underground utilities.

The utility model content

The utility model provides a kind of pipe outer taximeter, and technical scheme is as follows:

Manage outer taximeter, it is characterized in that, comprising:

Support, install roll shaft;

Drive runner, be enclosed within on this roll shaft, on this driving runner, have cable clamping interface;

Rope, on this cable clamping interface;

Scrambler, be enclosed within on this roll shaft, and coaxial with this driving runner, this scrambler has photoelectric signal transforming module;

The signal reservoir, connect this scrambler.

The beneficial effects of the utility model are:

1. the outer taximeter of pipe is simple in structure, cheap.

2. high, the error amount scope of pipe outer taximeter superior performance, degree of accuracy is in 0.2-0.5%.

3. the outer taximeter of pipe is cheap, practical and convenient, compatibly descends very much duct survey.

The accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, describe the utility model in detail:

Fig. 1 is the structural representation of the outer taximeter of the utility model pipe.

Embodiment

For measure, creation characteristic that the utility model technology is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Fig. 1 is the structural representation of the outer taximeter of the utility model pipe.The utility model comprises:

Support 1, roll shaft 6 is installed in top;

Drive runner 2, be enclosed within on roll shaft 6, drive on runner 2 and have cable clamping interface 7;

Rope 4, on cable clamping interface 7;

Scrambler 3, also be enclosed within on roll shaft 6, so scrambler 3 with to drive runner 2 coaxial, drives runner 2 scrambler 3 that often circles, also circles; Scrambler 3, be connected with signal reservoir 5, and scrambler 3 inside have photoelectric signal transforming module, converts the number of turns of rotation to electric signal transmission to signal reservoir 5.

during the utility model work, at first, one end and the Tracing instrument of rope 4 are held together, and these rope 4 beginning measurement points are marked with electrical adhesive tape, Tracing instrument can drive this rope 4 motions while in down-hole, moving, this rope 4 drives and drives runner 2 rotations, scrambler 3 inductions drive runner 2 and rotate, and light signal is converted to electric signal, while writing down the Tracing instrument stop motion, drive the number of turns that runner 2 rotates, to rotate the number of turns passes to signal reservoir 5 and stores, signal reservoir 5 can connect computer, the rotation number of turns that data processing module in computer will record multiplies each other with driving runner 2 internal diameters, calculate the length of rope 4 motions, thereby calculate the length of underground utilities.

Above demonstration and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (1)

1. the outer taximeter of pipe, is characterized in that, comprising:

Support, install roll shaft;

Drive runner, be enclosed within on this roll shaft, on this driving runner, have cable clamping interface;

Rope, on this cable clamping interface;

Scrambler, be enclosed within on this roll shaft, and coaxial with this driving runner, this scrambler has photoelectric signal transforming module;

The signal reservoir, connect this scrambler.

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