CN102278975B - Non-contact soft soil large deformation displacement meter - Google Patents
Non-contact soft soil large deformation displacement meter Download PDFInfo
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- CN102278975B CN102278975B CN 201110215559 CN201110215559A CN102278975B CN 102278975 B CN102278975 B CN 102278975B CN 201110215559 CN201110215559 CN 201110215559 CN 201110215559 A CN201110215559 A CN 201110215559A CN 102278975 B CN102278975 B CN 102278975B
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- displacement meter
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- pipe shaft
- large deformation
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Abstract
The invention discloses a non-contact soft soil large deformation displacement meter, which comprises a pipe body and a gauge head, wherein a rotary potentiometer is arranged in the gauge head. The displacement meter is characterized in that the two sides of a rotating shaft of the rotary potentiometer are provided with counterweights which rotatably and synchronously move with the shaft of the rotary potentiometer and a first synchronous mobile device; the counterweights and the first synchronous mobile device are located in the pipe body; a second synchronous mobile device are further arranged in the pipe body; the second synchronous mobile device is synchronized with the first synchronous mobile device; a push rod is connected with the lower end of the second synchronous mobile device; and the lower end of the push rod is connected with a mounting pawl. The displacement meter disclosed by the invention has the following advantages that the measuring process is free from construction interruption and artificial measuring error, the measuring range is wide (capable of reaching 1.6m), the precision is high, the measurement is convenient, the construction is safe, meanwhile, the cost is low, and the displacement meter is particularly suitable for the area of the soft soil foundation with large deformation of soil body.
Description
Technical field
What the present invention relates to is a kind of contactless large deformation displacement meter that can measure settlement of foundation.Belong to civil engineering groundwork settlement measurement technical field.
Background technology
Settlement observation is widespread use in civil engineering construction, and conventional settlement of foundation observation procedure is mainly to carry out artificial observation with sedimentation mark and precision level.Personal monitoring's method exists and affected and the shortcoming such as personal error by work progress.Soft soil base sedimentation is large, and existing deformation-sensor range is little, can not satisfy the demand of soft clay area settlement observation.
Summary of the invention
What the present invention proposed is the telescopic contactless large deformation displacement meter of a kind of flush type, and its purpose is intended to overcome the existing defects of prior art.Realize the electrical measurement of settlement of foundation, eliminate personal error, with operation side without intersecting, wide range, suitable soft soil base sedimentation observation requirements.
technical solution of the present invention: a kind of non-contact soft soil large deformation displacement meter, comprise pipe shaft and gauge head, be provided with rotational potentiometer in described gauge head, it is characterized in that: in described rotational potentiometer rotation axis both sides, counterweight and one first synchronous shifter that moves with this rotational potentiometer axle rotational synchronization is installed, described counterweight and the first synchronous shifter are positioned at described pipe shaft, also be provided with one second synchronous shifter in described pipe shaft, this second synchronous shifter is synchronizeed with described the first synchronous shifter, lower end at described the second synchronous shifter is connected with push rod, lower end at push rod is connected with mounting jaw.
Be the magnetic mobile device at described the first synchronous shifter, described the second synchronous shifter is the magnetic mobile device.
Described magnetic mobile device comprises that magnet, upper guiding are emitted, lower guiding is emitted and ball, and between described magnet was fixed on that guiding is emitted and lower guiding emits, guiding was emitted and lower guiding is emitted and is respectively arranged with described ball on described.
Described the first synchronous shifter is one first movable block, and described the second synchronous device is one second to move soon, is connected with push rod in the lower end of described the second synchronous shifter.
Be fixed with a synchronous belt wheel on described potentiometer rotation axis, be provided with Timing Belt on this synchronous pulley, described counterweight and the first synchronous shifter are connected to the two ends of Timing Belt.
Described pipe shaft is three, and described counterweight is arranged in the first pipe shaft; Described the first synchronous shifter is arranged in the 3rd pipe shaft, and described the second synchronous shifter is arranged in the second pipe shaft, described the first pipe shaft and the 3rd pipe shaft and described gauge head internal communication and sealing.
Upper end at described gauge head is provided with sedimentation plate.
Lower end at described the second pipe shaft is provided with scraper.
Non-contact soft soil large deformation displacement meter of the present invention mainly by multipurpose rotary potentiometer, synchronous pulley, Timing Belt, the first magnetic mobile device, the second magnetic mobile device, counterweight, sedimentation plate, nylon gauge head, guiding emit, plastics pipe shaft, stainless steel push rod, mounting jaw, coupling adapter, scraper, sealing-plug etc. consist of.Sedimentation plate is fixed on the top of nylon gauge head, and three plastics pipe shafts are connected in parallel on the bottom of nylon gauge head.It is inner that synchronous pulley and multiturn potentiometer are placed in the nylon gauge head, and the axle of multiturn potentiometer is connected with synchronous pulley is concentric.The two ends of Timing Belt are connected with the first magnetic mobile device with the lead counterweight respectively, and lead counterweight and the first magnetic mobile device are placed in the plastics pipe shaft of the right and left of nylon gauge head below, Timing Belt again with the synchronizing wheel engagement of nylon gauge head inside.The second magnetic mobile device is equipped with on stainless steel push rod top, and they are placed in the plastics pipe shaft at middle part, nylon gauge head below, and the stainless steel push rod is connected with the galvanized conduit of bottom with anchorage head by coupling adapter.The mounting means that displacement meter adopts boring to bury underground, after soft soil foundation generation sedimentation, contactless large deformation displacement meter produces corresponding decrement thereupon, the stainless steel push rod is moved with respect to the nylon gauge head in plastics pipe shaft inside, the first magnetic mobile device on Timing Belt will be moved along with the second magnetic mobile device on the stainless steel push rod, then the first magnetic mobile device rotates synchronizing wheel by Timing Belt, and the rotating shaft of multiturn potentiometer is along with synchronizing wheel rotates together.Mechanical structure device by displacement meter, the vertical straight-line displacement amount of the soil body is transformed into the rotation angle displacement of multiturn potentiometer, multiturn potentiometer converts angular displacement to linear Voltage-output with it again, can obtain the land movement amount by the measuring voltage value.
The invention has the advantages that: measuring process be not subjected to construction disturb, unmanned high for measuring error, range large (can reach 1.6m), precision, be convenient for measuring and safe construction, cost is not high simultaneously, is particularly suitable for soft soil foundation soil deformation amount larger area.It has realized digitized measurement, and high efficiency, saving manpower are if coordinate automated data acquisition system and GPRS technology just can realize the automation remote measurement.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is synchronous shifter structural representation of the present invention.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the contactless large deformation displacement meter of the present invention installation diagram.
Fig. 5 is non-contact soft soil large deformation displacement meter instrumentation plan of the present invention.
Embodiment
Contrast Fig. 1, its structure is to comprise that 1. sedimentation plate 2. synchronous pulley 3. multipurpose rotary potentiometer 4. gauge head 5. Timing Belt 6. counterweight 7. balls guiding emit 8. first synchronous shifter 9. second synchronous shifter 10. plastics pipe shaft 11. sealing-plug 12. scraper 13. stainless steel push rod 14. mounting jaw 15. coupling adapters.Wherein gauge head 4 is the nylon gauge head, and counterweight 6 is the lead counterweight, and multipurpose rotary potentiometer 3 is housed in the nylon gauge head, establishes synchronous pulley 2 in 3 rotating shafts of multipurpose rotary potentiometer.On synchronous pulley 2, around Timing Belt 5, the two ends of Timing Belt 5 are connecting respectively lead counterweight and the first magnetic mobile device.Three plastics pipe shafts 10 are connected in parallel on below the nylon gauge head.Lead counterweight and the first magnetic mobile device are located at respectively in the plastics pipe shaft 10 of both sides, and sealing-plug 11 is located at plastic tube 10 lower ends of both sides, the space of plastics pipe shaft 10 inner spaces of both sides and inner space formation one sealing of nylon gauge head.The second synchronous shifter is equipped with in stainless steel push rod 13 upper ends, coupling adapter 15 has been installed in stainless steel push rod 13 lower ends, mounting jaw 14 is located at coupling adapter 15 both sides, stainless steel push rod 13 is placed in the plastics pipe shaft 10 at middle part, scraper 12 is arranged on the lower end of plastics pipe shaft 10 at middle part, and plastics pipe shaft 10 inner spaces at middle part are not communicated with the inner space of nylon gauge head.It is 300mm that sedimentation plate adopts diameter, and thickness is the circular steel plate of 5mm, with three symmetrical screws, steel plate is connected with the nylon gauge head, and nylon gauge head bottom is connected with the mode of three PVC plastic tubes (external diameter 26mm) side by side with screw thread.
Synchronous shifter adopts magnetic devices, contrast accompanying drawing 2,3, the magnetic mobile device comprises powerful radial magnet 81, be equipped with in the top and bottom of powerful radial magnet 81 that ball guiding emits 82, lower ball guiding emits 83, upper ball guiding emit 82 and lower ball guiding emit 83 sidewall that three stainless steel balls 84 have been installed.Upper ball guiding emits 82, powerful radial magnet 81, lower ball guiding emit 83 use screw threads and nut to be connected in series by hole 85.The effect that the ball guiding is emitted is to avoid between magnet and plastic tube wall, sliding friction occuring, and reduces the sensor response limit and Timing Belt can be positioned on the pvc pipe central axis.
The two ends that Timing Belt is upper around synchronous pulley (diameter 50mm), the first magnetic mobile device and lead counterweight are connected to Timing Belt.The second magnetic mobile device is arranged on the stainless steel push rod, in when, in the plastic tube of stainless steel push rod at displacement meter, straight-line displacement occuring when, the first magnetic mobile device can be attracted by the second magnetic mobile device on the stainless steel push rod to produce onesize displacement, and the first magnetic mobile device changes into straight-line displacement amount by Timing Belt the angular displacement of synchronous pulley again.
Multiturn potentiometer is the core engine electric transition element of whole displacement meter device, the rotating shaft of multiturn potentiometer is connected with synchronous pulley is concentric, multiturn potentiometer changes into linear with it voltage with the angular displacement of rotating shaft, by measuring this magnitude of voltage, can converse straight-line displacement amount.
The magnetic mobile device locates to use ball guiding to emit up and down, the ball guiding emit the side uniform three stainless steel balls (diameter 5mm), its effect is the friction force that reduces between powerful radial magnet and plastic tube wall, improves the sensitivity of displacement meter; And powerful radial magnet can be positioned on the pvc pipe axis, the error of avoiding the inclination of stainless steel push rod to cause.
Contrast accompanying drawing 5, non-contact soft soil large deformation displacement meter 27 adopts the mode of boring to be embedded in below the earth's surface.When the large deformation displacement meter be used for to be measured the earth's surface total settlement, anchorage head 26 need to be anchored in basement rock 25 or closely knit sandy soils; If be used for layered settlement observation, then the boring that needs to bore several different depths be anchored at the anchorage head of each displacement meter each Soft Soil Layer 24 bottoms.The equivalent displacement can occur along with the stratum of bottom, hole in anchorage head 26, the stainless steel push rod generation equivalent that the galvanized conduit 3 that is connected with anchorage head can drive non-contact soft soil large deformation displacement meter moves, simultaneously the gauge head of large deformation displacement meter can along with the displacement of the sedimentation generation equivalent on earth's surface, that is to say that the displacement that the large deformation displacement meter is measured is exactly that the sedimentation plate of displacement meter is to the decrement of the interior soil body of anchorage head 26 depth rangees.
Claims (6)
1. non-contact soft soil large deformation displacement meter, comprise pipe shaft and gauge head, be provided with rotational potentiometer in described gauge head, it is characterized in that: be connected with and the synchronization-moving counterweight of this rotational potentiometer rotation axis and one first synchronous shifter in described rotational potentiometer rotation axis both sides, described counterweight and the first synchronous shifter are positioned at described pipe shaft, also be provided with one second synchronous shifter in described pipe shaft, this second synchronous shifter is synchronizeed with described the first synchronous shifter, lower end at described the second synchronous shifter is connected with push rod, lower end at push rod is connected with mounting jaw, described the first synchronous shifter is the first magnetic mobile device, and described the second synchronous shifter is the second magnetic mobile device, be fixed with a synchronous belt wheel on described potentiometer rotation axis, be provided with Timing Belt on this synchronous pulley, described counterweight and the first synchronous shifter are connected to the two ends of Timing Belt, in when, in the pipe shaft of push rod at displacement meter, straight-line displacement occuring when, the first magnetic mobile device can be attracted by the second magnetic mobile device on push rod to produce onesize displacement, thereby realizes the synchronous of the first magnetic mobile device and the second magnetic mobile device.
2. non-contact soft soil large deformation displacement meter according to claim 1, it is characterized in that: described the first magnetic mobile device and the second magnetic mobile device comprise magnet, upper guiding cap, lower guiding cap and ball, described magnet is fixed between guiding cap and lower guiding cap, is respectively arranged with described ball on guiding cap and lower guiding cap on described.
3. contactless large deformation of soft soil displacement meter according to claim 1, it is characterized in that: described the first synchronous shifter is one first movable block, described the second synchronous shifter is one second to move soon, is connected with push rod in the lower end of described the second synchronous shifter.
4. non-contact soft soil large deformation displacement meter according to claim 1, it is characterized in that: described pipe shaft is three, described counterweight is arranged in the first pipe shaft; Described the first synchronous shifter is arranged in the 3rd pipe shaft, and described the second synchronous shifter is arranged in the second pipe shaft, described the first pipe shaft and the 3rd pipe shaft and described gauge head internal communication and sealing.
5. non-contact soft soil large deformation displacement meter according to claim 1, it is characterized in that: the upper end at described gauge head is provided with sedimentation plate.
6. non-contact soft soil large deformation displacement meter according to claim 4, it is characterized in that: the lower end at described the second pipe shaft is provided with scraper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110215559 CN102278975B (en) | 2011-07-29 | 2011-07-29 | Non-contact soft soil large deformation displacement meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110215559 CN102278975B (en) | 2011-07-29 | 2011-07-29 | Non-contact soft soil large deformation displacement meter |
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| CN102278975A CN102278975A (en) | 2011-12-14 |
| CN102278975B true CN102278975B (en) | 2013-06-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103512479B (en) * | 2012-06-18 | 2017-02-08 | 深圳市蓝韵实业有限公司 | Lifting and lowering stroke detection structure of lifting and lowering bed |
| CN103321201B (en) * | 2013-05-23 | 2015-07-29 | 上海港湾工程质量检测有限公司 | Sealed liquid pressure reduction delaminating deposition takes into account that it is buried underground, measuring method |
| CN105887792A (en) * | 2016-04-12 | 2016-08-24 | 河海大学 | Observation device for observing soil deformation based on slide rheostat and measuring method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5040421A (en) * | 1989-11-10 | 1991-08-20 | Kidoh Construction Co., Ltd. | Measuring method of fluctuations of ground and its apparatus |
| CN2372659Y (en) * | 1999-04-16 | 2000-04-05 | 王福双 | Displacement transducer |
| CN201637396U (en) * | 2010-01-15 | 2010-11-17 | 河海大学 | Measuring device for relative displacement between structure and soil phase |
| CN201876257U (en) * | 2010-10-15 | 2011-06-22 | 熊梦婕 | Dam foundation settlement meter for extra-large measuring range dam |
-
2011
- 2011-07-29 CN CN 201110215559 patent/CN102278975B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5040421A (en) * | 1989-11-10 | 1991-08-20 | Kidoh Construction Co., Ltd. | Measuring method of fluctuations of ground and its apparatus |
| CN2372659Y (en) * | 1999-04-16 | 2000-04-05 | 王福双 | Displacement transducer |
| CN201637396U (en) * | 2010-01-15 | 2010-11-17 | 河海大学 | Measuring device for relative displacement between structure and soil phase |
| CN201876257U (en) * | 2010-10-15 | 2011-06-22 | 熊梦婕 | Dam foundation settlement meter for extra-large measuring range dam |
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| CN102278975A (en) | 2011-12-14 |
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