CN200992706Y

CN200992706Y - Cast-in-place pile concrete casting-depth detecting device

Info

Publication number: CN200992706Y
Application number: CN 200620158672
Authority: CN
Inventors: 赵顺增; 刘立; 周聚光; 曹淑萍; 吴勇; 杨伊静
Original assignee: China Building Materials Academy CBMA
Current assignee: China Building Materials Academy CBMA
Priority date: 2006-12-01
Filing date: 2006-12-01
Publication date: 2007-12-19
Anticipated expiration: 2016-12-01

Abstract

The utility model discloses a detecting device to detect the filling pile concrete casting depth, which comprises a detecting hammer (1), a measuring force sensor (2) and a signal receiving alarm device (3). The detecting hammer (1) is vertically arranged at underside of the concrete (10) cast in the filling pile hole (6) through a drawing line (11), the other end of the drawing line (11) connects firmly with the measuring force sensor (2), the upside of the measuring force sensor (2) connects firmly with a suspension fork (4) fixed on the ground through a drawing line (12); the signal receiving alarm device (3) is fixed on the ground and connects with the measuring force sensor (2) through a signal line (31). The device can save a lot of concrete, reduce the later period workload of filling pile, namely, improve the construction efficiency, reduce the construction fee, and also relieve the work intensity. The structure of the device is simple, the installation is easy, the operation is convenient, and is suitable to be spread.

Description

Cast-in-place pile concrete cast depth finding device

Technical field

The utility model relates to a kind of sniffer, specifically relates to a kind of sniffer of the cast-in-place pile concrete cast degree of depth.

Background technology

The cast-in-place pile concrete cast degree of depth is to survey by artificial portable weight at present, whether concrete builds is put in place, rely on operating personnel's feel and experience fully, for fear of the construction quality accident that produces the cast insufficient height, often excessive building, not only waste concrete in a large number, and cut the workload of stake after having increased.

The utility model content

The purpose of this utility model provides a kind ofly can accurately survey the device that cast-in-place pile concrete is built the degree of depth.

To achieve these goals, the utility model by the following technical solutions: a kind of cast-in-place pile concrete is built the depth finding device, and its characteristics are that it includes one and visits hammer, load cell and signal reception alarm; This spy hammer hangs down by a backguy and is located at the downside of the concrete surface of building in this hole for grout pile, and the other end of backguy and a load cell downside are affixed, and the upside of this load cell is affixed with the suspension that is fixed in ground by another backguy; Described signal receives alarm and rest on the ground; This signal receives alarm and is communicated with described load cell by a holding wire.

Above-mentioned spy hammer is for a kind of in cone-shaped, spherical, American football shape or the cylinder up and down, and the best is set to cone-shaped up and down.

Above-mentioned signal receives alarm and comprises shell body, is disposed with null-type bridge circuit, high-precision amplifying, A/D converter, cpu central processing unit, LCD display and a warning device in its housing; The cpu central processing unit output also connects a data storage, and is furnished with the RS232 interface, and the display location of LCD display is in this surface of shell; Wherein, the null-type bridge circuit input is connected with load cell by described holding wire, the analog signals of the stressed variation of load cell that reception is sent out by holding wire, through high-precision amplifying its signal is amplified again, amplifying signal is sent to A/D converter and converts analog signals to digital quantity signal, is delivered in the cpu central processing unit; Numerical value after cpu central processing unit is handled deposits in to data storage and by LCD display and shows; Cpu central processing unit instruction alarm activation is reported to the police.

Above-mentioned warning device is selected in display lamp, the phonetic alarm one or both combination for use, promptly provides to show that warning also sends audible alarm simultaneously.

When working, can not influence the accuracy that receives and send signal because of rocking in order to ensure load cell, the load cell connection is visited the backguy of hammering into shape and is all selected the low elasticity backguy for use with the backguy that load cell is connected with suspension.

Operating principle of the present utility model is:

According to Archimedes principle, the Media density difference, the buoyancy of its generation is also different, the spy hammer that this device adopts, the density of its material is greater than the coagulation upper density, and the volume of visiting hammer is certain value V, in use, to visit hammer probes in the cast-in-place concrete pile hole, the test degree of depth of visiting hammer is identical with the concrete absolute altitude of building, because have three kinds of media this moment in the priming concrete pile hole, be respectively concrete, mud and water, its density size is ρ successively _Concrete＞ρ _Mud＞ρ _Water: concrete by perfusion cannula from stake hole bottom upwards the process of cast, the mud of bottom, stake hole, water can float over concrete top because density is littler than concrete, when water passes when visiting hammer, can produce V ρ to visiting hammer _WaterBuoyancy, this moment, load cell can accurately detect this variation, and passed the signal to signal and receive alarm, display screen can show the variation of power value in the signal reception alarm, and with optical signal and voice signal prompting, same, when mud layer was hammered into shape by visiting, it was V ρ that the buoyancy of generation changes _Mud, concrete arrives when visiting the hammer position, and it is V ρ that the buoyancy of generation changes _Concrete, different signals can be passed to signal in good time and receive alarm, and signal reception alarm can be made corresponding prompt and warning, realizes the accurate control to the concreting absolute altitude.

The utility model adopts as above technical scheme, its advantage is as follows: 1, utilize concrete, the mud density value different with water, select the spy hammer of a kind of material density for use greater than concrete density, hang down be located in the cast-in-place concrete pile stake hole and the test degree of depth identical with the concrete absolute altitude of building, according to physical principle, can obtain concrete cast height exactly, the concrete degree of depth of building in the control priming concrete pile hole has solved and can't learn accurately in the prior art whether concrete builds the defective that puts in place; 2, because receiving alarm, signal can learn concrete cast height at any time, so, can save a large amount of concrete, reduced the workload that the later stage cuts, improved efficiency of construction; 3, this apparatus structure is simple, is easy to install, and is easy and simple to handle, do not need the operating personnel of professional skill, can also significantly reduce operating expenses and labour intensity simultaneously, overcome the disadvantage that needs artificial portable weight to survey in the prior art, is easy to apply.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is the utility model user mode schematic diagram

Fig. 3 receives the alarm principle schematic for signal

The specific embodiment

As Fig. 1, shown in Figure 3, the utility model receives alarm 3 by spy hammer 1, load cell 2, signal and assembles, load cell 2 is hung on the suspension 4 that is fixed on ground by a backguy 11, probe 1 is hung at the below of load cell 2 by backguy 12, is connected with a holding wire 31 between load cell 2 and the signal reception alarm 3.Wherein, visit hammer 1 and can adopt spherical, American football shape, cylinder cone or go up shape such as lower cone, the best is set to lower cone; In order to guarantee to visit the application life of hammer 1, spy hammer 1 adopts stainless steel usually or the copper class is difficult for getting rusty or corrosion resistant metal material, also can select non-metallic material for use; It is the pulling force sensor of MCL-S150N that load cell 2 is selected the model of market sale for use;

Signal receives alarm 3 and comprises shell body, is disposed with null-type bridge circuit 32, high-precision amplifying 33, A/D converter 34, cpu central processing unit 35, LCD display 37 and a warning device 39 in its housing; Cpu central processing unit 35 outputs also connect a data storage 36, and are furnished with RS232 interface 38, and the display location of LCD display 37 is in this surface of shell; Wherein, null-type bridge circuit 32 inputs receive by holding wire 31 and transmit the analog signals of load cell 2 stressed variations, through high-precision amplifying 33 its signal is amplified, amplifying signal is sent to A/D converter 34 and converts digital quantity signal to by analog signals, delivers in the cpu central processing unit 35; Numerical value after cpu central processing unit 35 is handled is shown by LCD display 37; Cpu central processing unit 35 instruction warning devices 39 start reports to the police.

In above-mentioned data storage 36, can hold predefined experimental data, comprise the different densities value of water, mud, concrete etc.; Be provided with optical signal and/or voice suggestion signal in the warning device 39, the input of this warning device 39 is connected with the output of data storage 36, and different pieces of information is converted to optical signal or voice signal prompting, and optical signal can be selected light emitting diode for use; Voice signal can be selected loudspeaker for use, by the loudspeaker warning of sounding; It is the demonstration controller of MCK-Z series that the used LCD display 37 of the present invention is selected the model of market sale for use; Loudspeaker is selected the ventional loudspeakers of market sale for use, and the backguy of low elasticity is adopted in

backguy

11,12, to guarantee to visit the degree of accuracy that hammer 1 is measured.

As Fig. 2, shown in Figure 3, the utility model in use, to visit hammer 1 earlier along probeing in the stake hole 6 of its concrete perfusion conduit 5 that in soil 13, inserts, the test degree of depth of visiting hammer 1 is identical with concreting absolute altitude 9, three kinds of media of general existence in stake hole 6, be respectively concrete 10, mud 7, water 8, its density size is ρ successively _Concrete＞ρ _Mud＞ρ _Water: according to Archimedes principle, the Media density difference, the buoyancy of its generation is also different, pass through concrete perfusion conduit 5 from the process that upwards pour into a mould 6 bottoms, stake hole at concrete 10, the mud 7 of stake 6 bottoms, hole, water 8 are because density is littler than concrete 9, can float over concrete 10 tops,, can produce V ρ visiting hammer 1 when water 8 passes when visiting hammer 1 _WaterBuoyancy, this moment, load cell 2 can accurately detect this variation, and signal is sent to signal by holding wire 31 receives in the alarm 3, receiving and be sent to high-precision amplifying 33 by the interior null-type bridge circuit of establishing 32 amplifies its signal, analog signals after the amplification is sent to A/D converter 34 and converts digital quantity signal to, be delivered to again in the cpu central processing unit 35, in have a predefined experimental data value data storage 36 its data are carried out record, show the variation of power values this moment again by LCD display 37; The warning device 39 that connects simultaneously starts reports to the police.

Equally, when mud layer hammered 1 into shape by visiting, it was V ρ that the buoyancy of generation changes _Mud, concrete 10 arrives when visiting hammer 1 position, and it is V ρ that the buoyancy of generation changes _Concrete, signal can send signal in good time to and receive alarm 3, makes prompting of corresponding optical signal and/or voice signal and warning, realizes the accurate control to concreting absolute altitude 9.

Claims

1, a kind of cast-in-place pile concrete is built the depth finding device, it is characterized in that, it includes one and visits hammer (1), load cell (2) and signal reception alarm (3); This spy hammer (1) hangs down by a backguy (11) and is located at the downside on concrete (10) surface of building in this hole for grout pile (6), the other end of backguy (11) and a load cell (3) downside are affixed, and the upside of this load cell (3) is affixed with the suspension (4) that is fixed in ground by a backguy (12); Described signal receives alarm (3) and is arranged on the ground; This signal receives alarm (3) and is communicated with described load cell (2) by a holding wire (31).

2, cast-in-place pile concrete as claimed in claim 1 is built the depth finding device, it is characterized in that: described spy hammer (1) is for cone-shaped up and down.

3, cast-in-place pile concrete as claimed in claim 1 is built the depth finding device, it is characterized in that: described spy hammer (1) is for a kind of in spherical, American football shape or the cylinder.

4, build the depth finding device as each described cast-in-place pile concrete of claim 1-3, it is characterized in that: described signal receives alarm (3) and comprises a shell body, is disposed with null-type bridge circuit (32), high-precision amplifying (33), A/D converter (34), cpu central processing unit (35), a LCD display (37) and a warning device (39) in its housing; Cpu central processing unit (35) output also connects a data storage (36), and is furnished with RS232 interface (38); The display location of LCD display (37) is in this surface of shell; Described null-type bridge circuit (32) input receives and transmits the analog signals of the stressed variation of described load cell (2) by described holding wire (31), through high-precision amplifying (33) its signal is amplified, amplifying signal is sent to A/D converter (34) and converts digital quantity signal to by analog signals, delivers in the cpu central processing unit (35); Numerical value after cpu central processing unit (35) is handled deposits in to memory (36) and by LCD display (37) and shows; Cpu central processing unit (35) instruction warning device (39) starts reports to the police.

5, cast-in-place pile concrete as claimed in claim 4 is built the depth finding device, it is characterized in that: described warning device (39) is one or both combinations in display lamp or the phonetic alarm.

6, cast-in-place pile concrete as claimed in claim 5 is built the depth finding device, it is characterized in that: described backguy (11,12) is the low elasticity backguy.

7, build the depth finding device as each described cast-in-place pile concrete of claim 1-3, it is characterized in that: described backguy (11,12) is the low elasticity backguy.