CN2750288Y

CN2750288Y - Electrical logging rod type settlement gauge

Info

Publication number: CN2750288Y
Application number: CN 200420013487
Authority: CN
Inventors: 卢新民; 刘广林; 耿凡坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-27
Filing date: 2004-12-31
Publication date: 2006-01-04
Anticipated expiration: 2014-12-31

Abstract

The utility model discloses an electrical measuring rod type settlement gauge, which comprises a displacement sensor which is installed in a tubular outer shell, two longitudinal chutes which are symmetrically arranged on the wall of the shell, an earth blocking slide sleeve in which the outer shell is sheathed, two through holes which are symmetrically arranged on the earth blocking slide sleeve, an annular linking disk which is sheathed on the outside of the earth blocking slide sleeve, an end plug which is arranged on the top of the outer shell, a cable outlet hole of a sensor, and a horizontal rod, wherein the length of the earth blocking slide sleeve is larger than the length of the longitudinal chutes. The top end of the sensor is fixedly connected with the end plug, and the bottom end of the sensor is hinged with the horizontal rod which can move up and down in the longitudinal chutes. Both ends of the horizontal rod penetrate through the two through holes of the earth blocking slide sleeve. In addition, both ends of the horizontal rod are respectively and fixedly connected with the disk surface of the annular linking disk. The cable outlet hole is arranged on the wall of the outer shell arranged on one side below the end plug. The utility model can be used for measuring the settlement amount of a core wall dam, a panel dam and a homogeneous earth dam, with the advantages of wide application, easy realization of automated measurement, high monitoring precision, low installation cost and low use cost.

Description

Electrical measurement rod-type sedimentometer

Technical field

The utility model belongs to dam and project security monitoring instrument, particularly electrical measurement rod-type sedimentometer.

Background technology

Along with further developing of water resources and hydropower construction, the construction of earth and rockfill dam is more and more.At present, the method that is used for observing earth masonry dam (as: core wall dam, face dam) sedimentation that China adopts has around-France and communicating pipe of electromagnetism sedimentation method, used instrument is the electromagnetism settlement gauge when wherein measuring the core wall dam sedimentation, and used instrument is the waterpipe type settlement gauge when measuring the face dam sedimentation.The around-France utilization of electromagnetism sedimentation is still rested on the state of artificial observation settling amount at present, and this kind method is difficult to realize automatic observation.Though the utilization of method can realize artificial semi-automatic or measure settling amount automatically to communicating pipe, but this method is only applicable to face dam, in homogeneous earth dam or clay core wall dam, can't adopt because of easily forming problems such as seepage channel, it is subjected to not only that layering buries underground, and to influence measuring point few, the quantity of information of obtaining is few, monitoring accuracy is low, the cost height, and also application surface is narrow.

The utility model content

The purpose of this utility model is to provide a kind of electrical measurement rod-type sedimentometer, can be used to measure the settling amount of core wall dam, face dam, homogeneous earth dam, uses face width, easily is automated measurement again, the monitoring accuracy height, and installation, use cost are cheap.

The purpose of this utility model is achieved in that a kind of electrical measurement rod-type sedimentometer, comprise the displacement transducer of installing in the enclosure, this shell in a tubular form, be symmetrical arranged two vertical chutes on its shell wall, outer cover suit is in the native sliding sleeve of retaining, keep off the length of the length of native sliding sleeve, keep off being symmetrical arranged two through holes on the native sliding sleeve, keep off the outer suit of native sliding sleeve and ring-type interlock dish greater than vertical chute; The top of shell is being provided with a plug, on the one side shell wall of plug below sensor cable being set portals, the top and the plug of sensor are fixed together, the articulated energy in its bottom upper and lower mobile horizon bar in said vertical chute passes and is fixed in respectively on the card of ring-type interlock dish two through holes of the two ends of horizon bar on keeping off native sliding sleeve.

When the utility model uses, it is imbedded in the dam, by interlock dish pulling displacement transducer, just can calculate the soil body settling amount during soil body sedimentation by the displacement between determination sensor and the tube-like envelope.Sedimentometer of the present utility model is compared with the waterpipe type settlement gauge, civilwork engineering quantity when not only burying underground is very little, can not influence dam integral body fills, can realize that for core wall dam, homogeneous dam, face dam robotization detects, use face width, the monitoring accuracy height, and also the utility model sedimentometer and waterpipe type settlement gauge calculate by same measuring point number, used expense has only the latter's 1/20, installs, use cost is very cheap.In construction, the utility model can increase, subtract measuring point as required at any time, and the construction time monitoring is flexible, and picking rate is fast, not disturbed by construction, and therefore, it is very remarkable to use economic benefit of the present utility model and social benefit.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 looks cross-sectional view for master of the present utility model;

Fig. 2 overlooks cross-sectional view for the A-A among Fig. 1;

Fig. 3 looks cross-sectional view for the master that the utility model keeps off native sliding sleeve.

Embodiment

A kind of electrical measurement rod-type sedimentometer, as shown in Figure 1 and Figure 2, be included in the displacement transducer of installing in the shell 23, this shell 2 in a tubular form, be symmetrical arranged two vertical chutes 5 on its shell wall, shell 2 is sleeved in the native sliding sleeve 4 of retaining, keeps off the internal perisporium shape of native sliding sleeve 4 and the periphery wall shape of shell 2 and is complementary, and keeps off the length of the length of native sliding sleeve 4 greater than vertical chute 5.As shown in Figure 3, keep off being symmetrical arranged two through holes 10 on the native sliding sleeve 4, keep off native sliding sleeve 4 fit on suits and ring-type interlock dish 7, interlock dish 7 can be for circular; The top of shell 2 is being provided with a plug 1, on the side shell wall of plug 1 below sensor cable is being set and is portalling 9, and the bottom of shell 2 can be opened wide also and can seal.The top of sensor 3 and said plug 1 are fixed together, its bottom is by universal coupling 6 articulated energy upper and lower mobile horizon bar 8 in said vertical chute 5, as shown in Figure 2, pass and be fixed in respectively on the card of ring-type interlock dish 7 two through holes 10 of the two ends of horizon bar 8 on keeping off native sliding sleeve 4.In the lower end of sensor 3 universal coupling 6 is being set, when interlock dish 7 discontinuity, 6 of universal couplings pass to sensor 3 and can not transmit moment of torsion or deformation stressed, in order to prevent moment of torsion etc. the measuring accuracy of sensor 3 are caused harmful effect.As shown in Figure 1, the upper/lower terminal of the utility model shell 2 is being provided with connecting thread respectively, like this, can also several sedimentometers be connected in turn from beginning to end by connecting thread, makes its inner displacement transducer 3 tandem workings; Thereby range extension.

Claims

1, a kind of electrical measurement rod-type sedimentometer, be included in the displacement transducer of installing in the shell (2) (3), it is characterized in that: this shell (2) in a tubular form, be symmetrical arranged two vertical chutes (5) on its shell wall, shell (2) is sleeved in the native sliding sleeve of retaining (4), keep off the length of the length of native sliding sleeve (4), keep off being symmetrical arranged two through holes (10) on the native sliding sleeve (4), keep off the outer suit of native sliding sleeve (4) and ring-type interlock dish (7) greater than vertical chute (5); The top of shell (2) is being provided with a plug (1), sensor cable portal (9) is being set on the one side shell wall of plug (1) below, the top of sensor (3) and plug (1) are fixed together, the articulated energy in its bottom upper and lower mobile horizon bar (8) in said vertical chute (5) passes and is fixed in respectively on the card of ring-type interlock dish (7) two through holes (10) of the two ends of horizon bar (8) on keeping off native sliding sleeve (4).

2, electrical measurement rod-type sedimentometer according to claim 1, it is characterized in that: the upper/lower terminal of shell (2) is being provided with connecting thread respectively.

3, electrical measurement rod-type sedimentometer according to claim 1 is characterized in that: the bottom of sensor (3) links together by universal coupling (6) and horizon bar (8).