CN2136854Y - Dead load-bearing instrument for soil - Google Patents
Dead load-bearing instrument for soil Download PDFInfo
- Publication number
- CN2136854Y CN2136854Y CN 92220856 CN92220856U CN2136854Y CN 2136854 Y CN2136854 Y CN 2136854Y CN 92220856 CN92220856 CN 92220856 CN 92220856 U CN92220856 U CN 92220856U CN 2136854 Y CN2136854 Y CN 2136854Y
- Authority
- CN
- China
- Prior art keywords
- soil
- dynamometry
- utility
- piezoelectric transducer
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model relates to a dead load-bearing instrument for soil for the conic index determination of an agricultural department, a traffic department, and a military department, characterized in that a piezo-electric transducer (3) is adopted as the medium of force measuring; an SCM (10) is a data logger. Two spherical shape blocks (4), (9) with mutual correspondence can effectively eliminate the disturbance of the transverse force. The utility model has the advantages of wide force measuring range, high sensitivity, accurate detecting, etc.
Description
The utility model belongs to a kind of measuring apparatus, is applicable to the measurement to indexes such as soil garden bevel index, soil specific resistance, soil bearing capacities of agricultural, military affairs, traffic department.
At present, the domestic static load soil pressure instrument that generally uses is a kind of mechanical type pressure-bearing instrument, and its primary structure is made up of handle, dynamometer spring, record pointer, connecting rod and five parts of gauge head.During dynamometry, utilize dynamometer spring as the dynamometry media, because the rigidity of spring is limit, can't effectively measure soil soft, really up to the mark excessively, the data that record rely on record pointer to make the curve record, and the post-processed data are time-consuming more, and this instrument lack of balance mechanism, cause when measuring axial force, can be subjected to the interference of lateral force inevitably, influence the accuracy of dynamometry widely.
The purpose of this utility model provides the wide and high new soil static load pressure-bearing instrument of accuracy of a kind of simple in structure, easy to operate, dynamometry scope.
Static load soil pressure instrument described in the utility model is made up of handle, gauge head, connecting rod and dynamometry tape deck; Adopting piezoelectric transducer is the dynamometry conductive medium, and single-chip microcomputer is a data recording equipment, for eliminating the interference of lateral force, places a spherical pieces under the piezoelectric transducer axle, and the spherical pieces that another is corresponding is with it passed through the support spring support by a surface plate.
Concrete structure of the present utility model and embodiment are as shown in drawings.
Accompanying drawing 1: the sectional view of static load soil pressure instrument.
Among the figure: 1. handle, 2. shell, 3. piezoelectric transducer, 4. spill ball piece, 5. support spring, 6. gauge head, 7. guideway, 8. surface plate, 9. convex ball piece, 10. single-chip microcomputer.
Piezoelectric transducer (3) is positioned at the top, what be close to piezoelectric transducer (3) vertically is spill ball piece (4), convex ball piece (9) passes through support spring (5) support by surface plate (8), piezoelectric transducer (3), concavo-convex ball piece (4), (9), surface plate (8), support spring (5) are an integral body by overcoat (2) with guideway (7) sealing, and piezoelectric transducer (3) links to each other by electric lead with single-chip microcomputer (10).
Adopt static load soil pressure instrument described in the utility model compared with prior art, 1) to adopt piezoelectric transducer be the dynamometry conductive medium, the data that the single-chip microcomputer record measures, the dynamometry scope is big, sensitivity, later data is processed quick; 2) set up the external force bascule, can effectively eliminate the interference of cross force, greatly improved the accuracy of test.
Claims (1)
1, a kind of static load soil pressure instrument, form by handle, gauge head, dynamometry tape deck, it is characterized in that with piezoelectric transducer (3) be the dynamometry conductive medium, single-chip microcomputer (10) is a data logger, be placed with a spherical pieces (4) under piezoelectric transducer (3) axle, corresponding with it another spherical pieces (9) is passed through support spring (5) support by surface plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220856 CN2136854Y (en) | 1992-09-26 | 1992-09-26 | Dead load-bearing instrument for soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220856 CN2136854Y (en) | 1992-09-26 | 1992-09-26 | Dead load-bearing instrument for soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2136854Y true CN2136854Y (en) | 1993-06-23 |
Family
ID=33767800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92220856 Expired - Lifetime CN2136854Y (en) | 1992-09-26 | 1992-09-26 | Dead load-bearing instrument for soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2136854Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643704A (en) * | 2013-12-21 | 2014-03-19 | 佛山市新城开发建设有限公司 | Detector for detecting compactness of sand base of immersed tube tunnel |
| CN111893981A (en) * | 2020-09-09 | 2020-11-06 | 山东亚汉检测技术有限公司 | A kind of composite foundation bearing capacity detection device and detection method |
-
1992
- 1992-09-26 CN CN 92220856 patent/CN2136854Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643704A (en) * | 2013-12-21 | 2014-03-19 | 佛山市新城开发建设有限公司 | Detector for detecting compactness of sand base of immersed tube tunnel |
| CN111893981A (en) * | 2020-09-09 | 2020-11-06 | 山东亚汉检测技术有限公司 | A kind of composite foundation bearing capacity detection device and detection method |
| CN111893981B (en) * | 2020-09-09 | 2021-09-24 | 山东亚汉检测技术有限公司 | A kind of composite foundation bearing capacity detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |