CN2575300Y

CN2575300Y - Rotary conductor for signals from underwell ultrasound imaging logging instrument

Info

Publication number: CN2575300Y
Application number: CN02260557U
Authority: CN
Inventors: 王奎华; 胡昌斌; 谢康和
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU; Daqing Oilfield Co Ltd
Priority date: 2002-09-28
Filing date: 2002-09-28
Publication date: 2003-09-24
Anticipated expiration: 2012-09-28

Abstract

The utility model discloses an umbelliform measurer for the diameter of a formed aperture of a hole drilling stake. One end of a plurality of upper measuring strips is fixed and hinged on the outer column surface of the lower end of a measuring pipe. The other end of the upper measuring strips is mutually and movably hinged with one end of the relevant lower measuring strips. After the other end of the lower measuring strips is mutually hinged, the other end of the lower measuring strips forms an umbelliform structure. After a measuring rope passes through the measuring pipe, the measuring rope is connected with the mutual hinge point of the other end of the lower measuring strips. The upper end of the measuring pipe is provided with a positioning rod. After the measuring pipe is inserted into the depth which requires measuring, the measuring rope is drawn. Thus the lower end of lower measuring strips are drawn to upwards move by the measuring rope. Besides, the hinge connection point of the upper measuring strips and the lower measuring strips is horizontally moved. Because the measuring strips are distributed in a radiation form, the inflation shape basically forms a round shape. When the hinge point completely encounters the hole wall of a stake hole wall, people can read the stretching distance of the measuring rope at this time. The diameter of a formed aperture of the hole drilling strake can be obtained through a plurality of conversion. The depth of the measuring position can be measured through the hole insertion depth of the measuring pipe. The utility model has the advantages of simple and specific principle, and obvious practicability superiority.

Description

Drilled pile pore-forming aperture umbrella shape measuring appliance

Technical field

It is the measuring equipment of feature that the utility model relates in to adopt mechanical means, is a kind of inside diameter measurement device.

Background technology

In the process of pile foundation construction boring, before becoming empty back concrete spouting, may change owing to reasons such as soil deformation become the emptying aperture footpath, can the effective aperture reach designing requirement, directly affect the quality of foundation pile, the detection for the aperture does not at present also have reliable and practical method.

Summary of the invention

The purpose of this utility model provides a kind of drilled pile pore-forming aperture umbrella shape measuring appliance, can conveniently detect the diameter of pile foundation construction boring.

The technical solution adopted in the utility model is as follows:

It comprises lining rope, and backstay is surveyed pipe, on survey bar, following survey bar; Several ends of surveying bar of going up are fixedly hinged on the external cylindrical surface of survey pipe lower end, the other end of several upward survey bars and an end of corresponding radical hypotrematic are movably hinged mutually, after being movably hinged mutually, several other ends of surveying bar down are beveled structure, lining rope passes the mutual moveable hinge contact of the other end of surveying survey bar under the Guan Houyu and links to each other, and backstay is equipped with in the upper end of surveying pipe.

The beneficial effect that the utlity model has is: use this novel stake footpath measuring appliance, can detect the drilling diameter at different depth place simple and effectively, principle is simply clear and definite, economical and practical, on practicality, has obvious superiority, be very easy to promote the use of, can effectively monitor the drilling diameter of stake by using this measuring appliance, to guarantee pile quality, in today that present field of civil engineering extensively adopts pile foundation, can predict, this measuring apparatus will have broad application prospects, and will create the huge social economic benefit.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the utility model instrumentation plan;

Fig. 4 is the fixed platform vertical view;

Fig. 5 surveys pipe upper end structural representation.

The specific embodiment

As shown in Figure 1 and Figure 2, several ends of surveying bar 4 of going up are fixedly hinged on survey pipe 1 lower end external cylindrical surface, the other end of several upward survey bars 4 and an end of corresponding radical hypotrematic 5 are movably hinged mutually, after being movably hinged mutually, several other ends of surveying bar 5 down are beveled structure, lining rope 1 links to each other with the mutual moveable hinge contact of the other end of surveying bar 5 down after passing and surveying pipe 3, and backstay 2 is equipped with in the upper end of surveying pipe 3.

Said survey pipe 3 is compo pipe or pvc pipe, is divided into several sections and forms with being threaded, and on one section the survey pipe 3 backstay 2 is housed topmost.Promptly manage 3 sides in one section survey topmost and have chute 9, shown in Fig. 5 a, Fig. 5 b, backstay 2 is housed in the chute 9, backstay 2 two ends are fixed tightly in backstay 2 in the chute 9 with nut.

Said upper and

lower survey bar

4,5 is steel bar or PVC bar, is respectively 6～8.Survey bar and guarantee that certain rigid and portability are arranged, as shown in Figure 2, upper and

lower survey bar

4,5 is 6, and promptly 6 covers are hinged.

As shown in Figure 3, during measurement, supporting leg 7 with fixed platform 6 is placed on the measured hole ground earlier, this measuring appliance is inserted in the hole from fixed platform 6 holes, rely on the backstay of surveying on the pipe 32 in fixed platform 6 location, to survey pipe during detection and arrive the degree of depth that needs detection 3 times, pulling lining rope 1 is surveyed bar 5 lower ends under the pulling of lining rope lower end, move upward, last survey bar 4 and the place's transverse movement that is articulated and connected of surveying bar 5 down are radiation profiles because survey bar, and inflated configuration is rounded substantially, when the hinged place is run into a hole wall fully, read the distance that lining rope 1 stretches this moment,, can obtain the distance of hinged place transverse movement by converting several times, multiply by 2, promptly obtain the drilling diameter of stake, the degree of depth of measuring position can be measured by the hole depth that advances of surveying pipe.

Claims

1. drilled pile pore-forming aperture umbrella shape measuring appliance, it is characterized in that: it comprises lining rope (1), backstay (2) is surveyed pipe (3), on survey bar (4), following survey bar (5); Several ends of surveying bar (4) of going up are fixedly hinged on the external cylindrical surface of survey pipe (3) lower end, several upward other ends of survey bar (4) and an end of corresponding radical hypotrematic (5) are movably hinged mutually, after being movably hinged mutually, several other ends of surveying bar (5) down are beveled structure, lining rope (1) links to each other with the mutual moveable hinge contact of the other end of surveying bar (5) down after passing and surveying pipe (3), and backstay (2) is equipped with in the upper end of surveying pipe (3).

2. drilled pile pore-forming according to claim 1 aperture umbrella shape measuring appliance, it is characterized in that: said survey pipe (3) is compo pipe or pvc pipe, is divided into several sections and forms with being threaded, and on one section the survey pipe (3) backstay (2) is housed topmost.

3. drilled pile pore-forming according to claim 1 aperture umbrella shape measuring appliance is characterized in that: said upper and lower survey bar (4), (5) are steel bar or PVC bar, are respectively 6～8.