CN2092099U

CN2092099U - Pile hole detector

Info

Publication number: CN2092099U
Application number: CN 91207246
Authority: CN
Inventors: 赵欣; 陈静
Original assignee: Chaoyang City Construction Engineering Quality Supervision And Inspection Center
Current assignee: Chaoyang City Construction Engineering Quality Supervision And Inspection Center
Priority date: 1991-04-28
Filing date: 1991-04-28
Publication date: 1992-01-01

Abstract

The utility model discloses a pile hole detector, which can detect the quality of the pile hole during the construction of pile foundations and comprises a detecting part, a power signal control, and a displaying position. The detecting part comprises a probe, a main scale, a complementary scale, a scale block, and a vernier. The main scale and the complementary scale indicate measuring value which is changed into electrical signal via a lens and a sensor, then is converted into radio frequency signal, is sent to a controller, and final is reverted to an image via a display device. The instrument can directly observe the inner condition of the pile hole and the soil structure, color, and relevant parameters of the stratum depth. The instrument has high measuring precision.

Description

Pile hole detector

The instrument that when the utility model relates to a kind of pile foundation construction stake hole quality is detected.

Ultrasonoscope is adopted in the stake hole quality testing that gets out more both at home and abroad at present, its principle is to utilize acoustic attenuation and reflection measurement foot of hole loosened soil thickness, because ultrasonic probe is insensitive when contact stake hole loosened soil and real pedosphere face, the loosened soil thickness measure is inaccurate, and complex structure, test result is subject to an influence of hole complicated interface and causes error.The indigenous method that more domestic units in charge of construction often adopt is to observe a stake hole with the bamboo pole of tying bulb, and this way can only be seen the hole wall place that more significantly subsides, and can not measure at the bottom of the hole real native bearing capacity at the bottom of the loosened soil thickness and hole.

The purpose of this utility model is to overcome the shortcomings and deficiencies of existing stake hole detection means, provides a kind of and can accurately observe a hole loosened soil thickness, a shape and hole detector of related parameter is arranged in real soil bearing capacity, stake hole depth, the hole at the bottom of the hole.

To achieve these goals, technical solution adopted in the utility model is: by sensor, camera lens zoom and shot-light control section and tape measure partly constitute sniffer, inner walls fixed ruler frame at sniffer, one side of chi piece is fixed on chi frame bottom, opposite side is provided with chute, main scale places chute to slide up and down in groove, the chute both sides have scale as secondary chi, probe passes the chi piece, be fixed with vernier in probe tip, and can upwards slide along main scale, the reflective mirror and the chi piece that are arranged on the chi piece are angled, make the master, the indicating graduation of secondary chi is reflected in the camera lens.During measurement, make probe and main scale arrive bottom, stake hole, probe passes the loosened soil layer, and main scale is upwards boosted simultaneously, highly equals the thickness of loosened soil, and reading is pointed out on main scale by vernier pointer; When probe is stressed when entering real soil layer continuously, because promoting vernier, pressure upwards slides, and at this moment main scale and vernier are synchronous, and when vernier stopped to rise, indicated reading be native bearing capacity (kg/Cm on secondary chi ²).All testing process is monitored by lens optical system and sensor, the reading of major and minor scale becomes TV signal through camera lens and sensor, be transformed into radiofrequency signal through radio converter, reach controller through cable, after display is reduced to image, promptly finish observation process to inside, stake hole.

Also measure the stake hole depth in the controller of this instrument with an electronic counter, cable is being put into pulley of hole downslide process drive, cam is arranged on the pulley spindle, and trigger switch AN is once at a certain distance, import a pulse signal into to electronic counter, the number of times of counter accumulative total start pulse signal is exactly the i.e. degree of depth in stake hole of cable length.

Do a detailed description below by accompanying drawing in conjunction with embodiment of the present utility model.

Fig. 1 is the structural representation of this sniffer

Fig. 2 is the utility model measure portion structural representation

Fig. 3 is the utility model schematic block circuit diagram

Fig. 4 is the utility model circuit theory diagrams

Referring to Fig. 1, Fig. 2, sniffer A partly is made up of sensor CCD ［ 8 ］ camera lens zoom and shot-light and tape measure, sensor CCD and shot-light ［ 9 ］ are contained in respectively on the interior base plate ［ 14 ］ of sniffer housing ［ 13 ］, base plate is fixed on the shell inwall, camera lens ［ 6 ］ is contained on the sensor CCD, sensor is a photoelectric coupled device, its effect is that the scale value image that reflective mirror is reflected on the camera lens ［ 6 ］ is become electric signal, cable ［ 10 ］ respectively with sensor CCD, shot-light ［ 9 ］, camera lens ［ 6 ］ are connected with controller.Housing ［ 13 ］ inwall is fixed with chi frame ［ 11 ］, one side of chi piece ［ 12 ］ is fixed on chi frame bottom, opposite side is provided with chute ［ 15 ］, main scale ［ 4 ］ places chute to slide up and down, chute ［ 15 ］ both sides scales ［ 5 ］ are made secondary chi ［ 2 ］, probe ［ 1 ］ passes chi piece ［ 12 ］, probe ［ 1 ］ top is fixed with vernier ［ 3 ］, when probe touches real soil, promote vernier and upwards slide along main scale ［ 4 ］, reflective mirror ［ 7 ］ is located at the bottom of chi piece ［ 12 ］, and its effect is that vertical scale is become horizontal image, image in sensor by camera lens ［ 6 ］, camera lens ［ 6 ］ focal length passes through K switch ₅, K ₆Control is to regulate the image size.Pass on the cable ［ 10 ］ of sniffer housing and establish a pulley ［ 16 ］, cam ［ 17 ］ is housed on the pulley spindle, trigger switch AN ［ 18 ］ is fixed on the pulley ［ 16 ］, with cam ［ 17 ］ be Intermittent Contact.

See Fig. 4, Fig. 3, signal controlling and segment count are made up of trigger AN, counter J, controller K, radio converter and power supply, and power supply is through K switch ₁Power transformer B, capacitor C, meet controller K ₁Radio converter is by BG ₁, BG ₂, BG ₃Form oscillatory circuit, full-bridge D is through R ₁, R ₂Dividing potential drop cross-over connection triode BG ₁Base stage, BG ₁Emitter through capacitor C ₂Ground connection, its collector is through C ₃And B ₂Be coupled to BG ₂, BG ₃Base stage, B ₃Through resistance R ₅Meet display CRT, the vision signal that is transmitted by sensor CCD is through R ₆Advance BG ₂, BG ₃Emitter, to BG ₁The high-frequency signal that produces carries out amplitude modulation, and the signal after the vibration modulation is by BG ₂, BG ₃Collector output, through transformer B ₃, R ₅Output to display CRT.Display can adopt existing finished product monitor.K ₁Be power switch, K switch ₂Control shows CRT power supply, K ₃Control counter J power supply, K ₄, K ₅, and K ₆Control and shot-light and camera lens zoom power supply respectively, K ₅, K ₆Can be the soft-touch type button, press K ₅Lens focus is shortened, and the visual angle enlarges, and is convenient to hole inwall situation is observed, and presses K ₆Lens focus is elongated, and the visual angle dwindles, and is convenient to local observation at the bottom of scale label value and the hole.Trigger switch AN ［ 18 ］ is connected with counter J.

Utilize the utility model can directly observe structure, the color of pile hole construction quality and depths, stratum soil and related parameter is arranged, measuring accuracy height, easy to operate can be widely used in engineering geological investigation and construction quality and detect.

Claims

1, a kind of hole detector, be by ccd sensor [8], the sniffer A that camera lens zoom and shot-light [9] control section and tape measure partly constitute, power supply signal control section and display CRT form, it is characterized in that said sniffer middle shell [13] inwall is fixed with chi frame [11], one side of chi piece [12] is fixed on chi frame bottom, the another side is provided with chute [15], main scale [4] places chute to slide up and down, the scale [5] on chute [15] both sides is made secondary chi [2], probe [1] passes chi piece [12], be fixed with vernier [3] at its top and can make progress and slide along main scale [4], the reflective mirror [7] and the chi piece that are arranged on the chi piece [12] are angled, and camera lens [6] is contained on the sensor, cable [10] respectively with sensor, shot-light [9], camera lens and counter-controller join.

2, according to 1 described the hole detector that requires of right, it is characterized in that passing on the cable of sniffer housing a pulley ［ 16 ］ is set, cam ［ 17 ］ is housed on the pulley spindle, on pulley, be fixed with trigger switch AN ［ 18 ］, trigger switch and cam are Intermittent Contact, produce pulse signal and reach counter J.

3,, it is characterized in that the power supply signal control section forms power switch K by trigger AN, counter J, controller K, radio converter ［ 5 ］ with power supply according to claim 1 or 2 described hole detectors ₁, transformer B ₁, capacitor C ₁, connect controller, and pass through K respectively ₂, K ₃And K ₄, K ₅, K ₆Control display CRT power supply, counter J power supply and shot-light, camera lens zoom power supply, full-bridge rectification D is through R ₁, R ₂Dividing potential drop cross-over connection triode BG ₁Substrate, BG ₁Emitter through C ₂Ground connection, its collector is through C ₃, B ₂Be coupled to BG ₂, BG ₃Base stage, the vision signal that is transmitted by sensor is through R ₆Inject triode BG ₂, BG ₃Emitter BG ₂, BG ₃Collector through transformer B ₃, R ₅Meet display CRT, trigger switch AN is connected with counter J.