CN205301106U - Test instrument is compared to indoor bearing weight of - Google Patents
Test instrument is compared to indoor bearing weight of Download PDFInfo
- Publication number
- CN205301106U CN205301106U CN201620018139.3U CN201620018139U CN205301106U CN 205301106 U CN205301106 U CN 205301106U CN 201620018139 U CN201620018139 U CN 201620018139U CN 205301106 U CN205301106 U CN 205301106U
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- China
- Prior art keywords
- injection
- bar
- cross bar
- test instrument
- pole
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- Expired - Fee Related
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a test instrument is compared to indoor bearing weight of, including the base, be provided with an examination section of thick bamboo and support on the base, examination section of thick bamboo top is provided with the injection pole, is provided with first horizontal pole on the injection pole, and first horizontal pole perpendicular to injection pole sets up, and the injection pole passes through vertical adjustment mechanism to be connected with an examination section of thick bamboo, is provided with first spirit level on the first horizontal pole, it makes the bubble of first spirit level placed in the middle to adjust vertical adjustment mechanism. The utility model discloses a test instrument makes the injection pole be in vertical state through adjusting vertical adjustment mechanism to avoided the local atress of injection pole, the uneven condition of injection pole penetration depth reduces the error that measuring result and actual injection were measured.
Description
Technical field
This utility model belongs to Materials Testing Instrument field, is specifically related to a kind of indoor bearing-ratio test instrument.
Background technology
CBR (Californiabearingratio) is a kind of test method evaluating base material bearing capacity that California, USA proposes. Bearing capacity resists the capability representation of Local Loads press-in deformation with material, and to adopt the bearing capacity of high quality standards rubble be standard, represents CBR value with the percent of relative value. This method was also used for the intensity of evaluation soil matrix later. Owing to the test method of CBR is simple, equipment manufacturing cost is cheap, is used widely in many countries. Adopting existing test apparatus to carry out in the process tested, usually the two dial gauge reading differences because reflecting injection amount are relatively big, cause value difficulty, and measurement result is bigger with actual injection amount error. Its basic reason has three aspects: one is the non-level of tester, and due to action of gravity, on injection bar, steel ball and dimple are not in close contact, and under load action, the slight of steel ball is moved, and all can cause the very big change of dial gauge; Two is incomplete with the test specimen end face perpendicular contact of injection bar. Under load action, necessarily cause injection bar local pressure, make injection bar depth of penetration uneven, be reflected in dial gauge reading difference bigger. Three is that the measurement bar of dial gauge is vertical, causes measurement result and actual injection amount error bigger.
Summary of the invention
For above-mentioned problems of the prior art or defect, the purpose of this utility model is in that, it is provided that a kind of simple effectively and improve the indoor bearing-ratio test instrument of test accuracy.
To achieve these goals, this utility model adopts the following technical scheme that
A kind of indoor bearing-ratio test instrument, including pedestal, pedestal is provided with examination cylinder and support, examination cylinder is provided above injection bar, injection bar is provided with the first cross bar, first cross bar is perpendicular to injection bar and arranges, and described injection bar is connected with described examination cylinder by vertical governor motion, and a described cross bar is provided with the first spirit level; Regulating vertical governor motion makes the bubble of the first spirit level make injection bar be in vertical state between two parties.
Specifically, described vertical governor motion includes the montant being installed on described examination cylinder sidewall, and montant is movably set with the second cross bar, and the second cross bar is connected with described injection bar.
Specifically, the end of described second cross bar is through described montant, and the second cross bar is perpendicular to montant and arranges;The end of the second cross bar is provided with clamp screw.
Further, described support being provided with the second level device, base bottom is provided with multiple levelling foot.
Compared with prior art, this utility model has following technical effect that
1, tester of the present utility model makes injection bar be in vertical state by regulating vertical governor motion, thus avoiding injection bar local pressure, the situation that injection bar depth of penetration is uneven, reduces the error of measurement result and actual injection amount.
2, arranging the second level device on support, base bottom is provided with multiple levelling foot, adjusts leveling angle, observing the second level device bubble, until bubble is placed in the middle, pedestal is in level, thus adjusting whole tester to be in level, it is ensured that the accuracy of result of the test.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is underlying structure schematic diagram;
Fig. 3 is vertical governor motion structural representation;
Fig. 4 is top board structure schematic diagram;
Number in the figure represents: 1 pedestal, 2 examination cylinders, 3 injection bars, 4 first cross bars, 5 vertical governor motions, 501 montants, 502 second cross bars, 503 clamp screws, 6 first spirit levels, 7 the second level devices, 8 leveling angles, 9 pressure handwheels, 10 piston rods, 11 dial gauges, 12 supports, 1201 top boards, 1202 vertical rod members, 13 proving rings.
Below in conjunction with drawings and Examples scheme of the present utility model done and explain in further detail and explanation.
Detailed description of the invention
Defer to technique scheme, referring to Fig. 1-4, indoor bearing-ratio test instrument of the present utility model, including pedestal 1, pedestal 1 being provided with examination cylinder 2 and support 12, examination cylinder 2 is provided above injection bar 3, injection bar 3 is provided with the first cross bar 4, first cross bar 4 is perpendicular to injection bar 3 and arranges, and injection bar 3 is connected with examination cylinder 2 by vertical governor motion 5, and the first cross bar 4 is provided with the first spirit level 6; Regulating vertical governor motion 5 makes the bubble of the first spirit level 6 make injection bar 3 be in vertical state between two parties.
Tester of the present utility model makes injection bar 3 be in vertical state by regulating vertical governor motion 5, and namely the bubble of the first spirit level 6 is placed in the middle; The two ends of described first cross bar 4 are each perpendicular to the first cross bar 4 and are provided with measurement bar, measure and bar is provided with dial gauge 11, when injection bar 3 is in vertical state, measure bar and be also at vertical state, thus avoiding injection bar 3 local pressure, the situation that injection bar 3 depth of penetration is uneven, reduces the error of measurement result and actual injection amount.
Described pedestal 1 is provided with jack, the examination cylinder 2 described in piston rod 10 upper support of jack; Support 12 includes top board 1201 and two vertical rod members 1202, top board 1201 be installed below proving ring 13, be provided with dial gauge 11 in proving ring 13. Pedestal 1 is provided with pressure handwheel 9, for the piston rod 10 of jack is applied different size of power.
Specifically, described vertical governor motion 5 includes the montant 501 being installed on described examination cylinder 2 sidewall, and montant 501 is movably set with the second cross bar 502, and the second cross bar 502 is connected with described injection bar 3. Alternatively, the end of described second cross bar 502 is through described montant 501, and the second cross bar 502 is perpendicular to montant 501 and arranges; The end of the second cross bar 502 is provided with clamp screw 503.
Before experiment starts, observe the bubble position of the first spirit level 6, if bubble is not placed in the middle, then take-off the brake spiral 503, adjusts the second cross bar 502 and moves along the second cross bar 502 length direction relative to montant 501, observes bubble position, until bubble is placed in the middle, locking clamp screw 503, now, injection bar 3 is in vertical position.
Further, described support 1 is provided with the second level device 7, the second level device 7 is arranged on described top board 1201, it is provided with multiple levelling foot 8 bottom pedestal 1, adjusts leveling angle 8, observe the second level device 7 bubble, until bubble is placed in the middle, pedestal 1 is in level, thus adjusting whole tester to be in level, it is ensured that the accuracy of result of the test.
Alternatively, the first spirit level 6 and the second level device 7 all adopt circular bubble or pipe spirit level.
Specifically used method when device of the present utility model is for penetration test is as follows:
(1) being placed on by test specimen in examination cylinder 2, injection bar 3 bottom contacts with test specimen;
(2) observe the bubble position of the second level device 7, adjust leveling angle 8 so that the bubble of the second level device 7 is placed in the middle;
(2) observe the bubble position of the first spirit level 6, take-off the brake spiral 503, adjust the position of the second cross bar 502 so that the bubble of the first spirit level 6 is placed in the middle, lock clamp screw 503;
(3) jack is started so that the piston rod 10 of jack moves, injection bar 3 tip contact proving ring 13;
(4) regulate pressure handwheel 9, apply 45N pressure to the piston rod 10 of jack, the dial gauge 11 in proving ring 13 is adjusted zero point;
(5) continue to regulate pressure handwheel 9 and apply different size of pressure to the piston rod 10 of jack, record multiple readings of the dial gauge 11 at the first cross bar 4 two ends, i.e. injection amount;
(6) draw pressure-injection discharge curve, calculate CBR.
Claims (4)
1. an indoor bearing-ratio test instrument, including pedestal (1), pedestal (1) is provided with examination cylinder (2) and support (12), examination cylinder (2) is provided above injection bar (3), injection bar (3) is provided with the first cross bar (4), first cross bar (4) is perpendicular to injection bar (3) and arranges, it is characterized in that, described injection bar (3) is connected with described examination cylinder (2) by vertical governor motion (5), and a described cross bar (4) is provided with the first spirit level (6); Regulating vertical governor motion (5) makes the bubble of the first spirit level (6) make injection bar (3) be in vertical state between two parties.
2. indoor bearing-ratio test instrument as claimed in claim 1, it is characterized in that, described vertical governor motion (5) includes the montant (501) being installed on described examination cylinder (2) sidewall, being movably set with the second cross bar (502) on montant (501), the second cross bar (502) is connected with described injection bar (3).
3. indoor bearing-ratio test instrument as claimed in claim 2, it is characterised in that the end of described second cross bar (502) is through described montant (501), and the second cross bar (502) is perpendicular to montant (501) and arranges; The end of the second cross bar (502) is provided with clamp screw (503).
4. indoor bearing-ratio test instrument as claimed in claim 1, it is characterised in that being provided with the second level device (7) on described support (3), pedestal (1) bottom is provided with multiple levelling foot (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018139.3U CN205301106U (en) | 2016-01-08 | 2016-01-08 | Test instrument is compared to indoor bearing weight of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018139.3U CN205301106U (en) | 2016-01-08 | 2016-01-08 | Test instrument is compared to indoor bearing weight of |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205301106U true CN205301106U (en) | 2016-06-08 |
Family
ID=56486220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620018139.3U Expired - Fee Related CN205301106U (en) | 2016-01-08 | 2016-01-08 | Test instrument is compared to indoor bearing weight of |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205301106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793845A (en) * | 2019-12-20 | 2020-02-14 | 大连理工大学 | Carrying platform for ocean soil strength test injection device and using method |
| CN110864965A (en) * | 2019-12-10 | 2020-03-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Digital display type pavement material strength instrument |
-
2016
- 2016-01-08 CN CN201620018139.3U patent/CN205301106U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864965A (en) * | 2019-12-10 | 2020-03-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Digital display type pavement material strength instrument |
| CN110793845A (en) * | 2019-12-20 | 2020-02-14 | 大连理工大学 | Carrying platform for ocean soil strength test injection device and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20170108 |