CN205941548U - Trapped orbit formula concrete shrinkage test device - Google Patents
Trapped orbit formula concrete shrinkage test device Download PDFInfo
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- CN205941548U CN205941548U CN201620776724.XU CN201620776724U CN205941548U CN 205941548 U CN205941548 U CN 205941548U CN 201620776724 U CN201620776724 U CN 201620776724U CN 205941548 U CN205941548 U CN 205941548U
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- trapped orbit
- concrete shrinkage
- formula concrete
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a trapped orbit formula concrete shrinkage test device belongs to the experimental field of civil engineering, does this trapped orbit formula concrete shrinkage test device include the base, design fluted (1 on the base directaxis 1 ), be equipped with down trapezoidal bead (1 in the recess 2 ) recess (1 1 )One end vertically upwards be equipped with vertical (3), vertical (3) are equipped with vertical slide orientation groove (3 1 ) recess (1 1 )The other end establish dial gage stand (4), amesdial (5) are fixed on dial gage stand (4), base (1) sends (2) to be connected with the test piece that awaits measuring (6) through the fixing clip. The utility model discloses a position uniqueness of test piece in three dimensions that await measuring is prescribed a limit to in fixed trench design, improves accuracy, furthest's restriction the instrument creep, connect the measuring error who arouses such as insecure, the complete equipment principle is simple, easy and simple to handle, accuracy is high.
Description
Technical field
This utility model belongs to civil engineering test field and in particular to a kind of test of trapped orbit formula concrete shrinkage fills
Put.
Background technology
At present, concrete shrinkage test method mainly has GB/T 50082-2009《Normal concrete long-term behaviour and durable
Method for testing performance standard》Described in contact method and two kinds of eyes with non-contact method, according to contact method carry out concrete shrinkage test when,
Described in the method, horizontal shrinkage test gauge head end is hemispherical design, warp when concrete sample is fixed on this assay device
Often because the reason such as inconsistent, measuring point direction skew of test specimen placement location twice in front and back causes concrete shrinkage to measure definite value error
Larger, or even negative value phenomenon occurs.
Utility model content
The purpose of this utility model is that when making to measure every time by the design of trapped orbit formula, concrete sample position is fixed, and carries
High measurement accuracy, provides a kind of trapped orbit formula concrete shrinkage assay device.
Based on above-mentioned purpose, this utility model adopts the following technical scheme that：
A kind of trapped orbit formula concrete shrinkage assay device, it is characterised in that including base, base longitudinal axis sets
Fluted (1-1), is provided with inverted trapezoidal fin (1-2) in groove；One end of groove (1-1) is provided with standards (3) straight up, erects
Straight part (3) is provided with vertically slidable locating slot (3-1)；The other end of groove (1-1) sets dial holder (4)；Amesdial (5) is fixed on
On dial holder 4；Base (1) sends (2) to be attached with test specimen to be measured (6) by fixing card.
Further, it is embedded with the pre-buried slip screens point in two bottom surfaces, the pre-buried screens in end in test specimen (6) to be measured
Point, a pre-buried gauge head；Pre-buried to the to be measured test specimen one end of end pre-buried screens point, can be on vertically slidable locating slot (3-1) edge
Vertical direction is slidably；Pre-buried gauge head is embedded in the test specimen other end to be measured, docks with amesdial.
Further, dial holder (4), standards (3) are rigidly connected with base (1) respectively.
Further, base (1) arranges groove (1-1) with longitudinal axis for axis of symmetry, the upper hem width of inverted trapezoidal fin (1-2)
The bottom width spending screens point pre-buried with bottom surface is equal, the width that the width of groove sends more than fixing card.
Further, the termination of the pre-buried screens point in described end is cylinder fluting design.
Further, the pre-buried gauge head end in described end is cylinder design, and termination is concave spherical surface.
Further, the pre-buried screens point in described end and a diameter of 6mm of pre-buried gauge head end cross-sectional, need not change original examination
Mode structure.
Further, described standards (3) arranges wedge-shaped impression with longitudinal axis for axis of symmetry, can make the pre-buried screens in end
Point moves freely in vertical direction, and the movement in the horizontal plane of confinement end pre-buried screens point, and standards (3) and base are firm
Property connect.
Further, the axis of described standards (3) longitudinal axis and base phase in same perpendicular and in face
Mutually vertical.
Further, described dial indicators rack is provided with amesdial.
Further, described fixing card is sent including sending body and lever, lever outer wrap rubber sheath.
Further, described par is cylinder, and one end is fluting design, and phase is designed in pre-buried screens point end with end
With other end termination is concave spherical surface, a diameter of 6mm of par.
Further, described gripper shoe center setting 6.5mm diameter circular aperture can allow par pass through, center of circular hole position
Putting will with each section center after test specimen to be measured positioning on an axis.
Further, the base of described assay device, fixing card send, dial holder, vertically slidable locating slot, end pre-buried
Gauge head, the pre-buried end in end screens point, the pre-buried slip in bottom surface screens point, par, gripper shoe are made by hard steel.
This utility model compared with prior art has advantages below：
(1) this utility model designs for fixing groove position, by the ladder that falls on the vertically slidable locating slot in standards, base
Shape fin, fixing card send restriction position uniqueness in three dimensions for the test specimen to be measured, improve accuracy of measurement；
(2) it is rigid joint between this utility model base and standards, dial indicators rack, limit instrument to greatest extent
Creep, connect the measurement error causing such as insecure；
(3) the pre-buried screens in this utility model end point, end pre-buried gauge head end are designed for 6mm diameter cylinders, to be measured
Original die trial structure need not be changed during specimen molding；
(4) this utility model increased the pre-buried slip screens point in two bottom surfaces it is ensured that test specimen to be measured is on assay device
For statically determinate structure；
(5) this utility model principle is simple, easy and simple to handle, accuracy of measurement is high.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is that structural representation checked by amesdial；
Fig. 3 is that fixing card sends structural representation, A perspective view, and B is a-a direction schematic cross-section in A；
Fig. 4 is par schematic longitudinal section；
Fig. 5 is end pre-buried card site geometry (B) and schematic longitudinal section (A)；
Fig. 6 is the pre-buried slip in bottom surface card site geometry and schematic longitudinal section；
Fig. 7 is I cross section structure schematic diagram in Fig. 1；
Fig. 8 is II cross section structure schematic diagram in Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in detail.
A kind of trapped orbit formula concrete shrinkage assay device, its structure is as shown in Figure 1：Including base 1, base 1 is longitudinally
Being designed with cross section on axis is square groove groove 1-1.Bottom center along groove 1-1 is provided with the fin 1-2 of inverted trapezoidal.
One end of groove 1-1 is provided with standards 3 straight up, and standards 3 is provided with vertically slidable locating slot 3-1 (see Fig. 7).
The other end of groove 1-1 sets dial holder 4.Amesdial 5 is fixed on dial holder 4, needs to be carried out with par 12 before test
Check；Dial holder 4 and vertically slidable locating slot 3-1 are rigidly connected with base 1；Base 1 is sent by fixing card with test specimen 6 to be measured
2 are attached.
Groove 1-1 is docked with the pre-buried slip in bottom surface screens point 8；The pre-buried slip in bottom surface screens point 8 is embedded in test specimen 6 to be measured
In；It is embedded with two bottom surface pre-buried slip screens point 7, pre-buried gauge heads of 8, the pre-buried screens in end point in test specimen 6 to be measured
9；Pre-buried to be measured test specimen 6 one end of the pre-buried screens in end point 7, can in vertically slidable locating slot 3 vertically slidably；
Pre-buried gauge head 9 is embedded in test specimen 6 other end to be measured and is docked with amesdial 5.
Base 1 arranges inverted trapezoidal fin 1-1, the top width of inverted trapezoidal and the pre-buried card in side with longitudinal axis for axis of symmetry
The bottom width in site 8 is equal, and the width of groove 1-1 sends 2 width slightly larger than fixing card.
Referring to Fig. 7, vertically slidable locating slot 3-1 arranges wedge-shaped impression with longitudinal axis for axis of symmetry, and end can be made pre-buried
Screens point 8 moves freely in vertical direction, and confinement end pre-buried screens point 7 movement in the horizontal plane, vertically slidable positioning
Groove 3 and base 1 are to be rigidly connected.
Referring to Fig. 6, the pre-buried slip in bottom surface screens point 8 include positioned at the upper end 8-3 of strip, the lower end 8-1 of triangle with
And mid portion 8-2, a part of wherein upper end 8-1 and mid portion 8-2 is embedded in test specimen 6 to be measured, mid portion 8-2's
Another part and lower end 8-1 expose outside.
Referring to Fig. 3 A, described fixing card sends 2 to include sending body 2-1 and lever 2-2, lever 2-2 outer wrap rubber sheath.Ginseng
See Fig. 3 B, send the centre of body 2-1 to be provided with the locating slot 2-3 of prismatic.The lower half of this locating slot is used for accommodating base 1 groove 1-1
Fin 1-2, the first half is used for accommodating the lower end 8-1 (referring to Fig. 8) of the pre-buried slip in bottom surface screens point 8.
Concrete shrinkage test first has to carry out the preparation of test specimen 6 to be measured, by pre-buried for end measuring point 7 and pre-buried gauge head 9 end
Portion passes through specimen mould terminal plate, and the die-filling preparation of concrete, then by pre-buried for pre-buried for bottom surface slip screens point 8 extremely by the test specimen to be measured of molding
The pre-buried slip screens point 8 in 6 forming surface it is ensured that two bottom surfaces all on molding test specimen to be measured forming surface axis, and with
Axis is vertical, and in pre-buried to the to be measured test specimen of the pre-buried slip in bottom surface screens point 8 half height component, a half part is leaked outside, treats
Test block 6 is wiped one's face, secondary receipts face, the demoulding, test specimen 6 to be measured preparation completes, and test specimen is overturn, and is placed on mark and supports maintenance under environment.
Concrete shrinkage deformation measure fixed before and continuous mode in should check amesdial 5 reading in time, referring to Fig. 2, first
Calibrating stem 12 is passed through gripper shoe 13 central through hole, one end that calibrating stem 12 is carried wedge-shaped impression passes through vertically slidable locating slot
3-1, makes gripper shoe 13 horizontal positioned to base 1, and calibrating stem 12 other end is contacted with amesdial 5 and carries out amesdial 5 and calibrate, and
Calibrated amesdial 5 is fixed on dial holder 4, takes off calibrating stem 12 and bracing frame 13, make device be in test specimen to be measured
State.
During mensure, test specimen 6 to be measured is taken out from standard curing room, upset, it is vertically slidable fixed that the pre-buried screens in end point 7 passes through
Position groove 3-1, makes the pre-buried slip in bottom surface screens point 8 lower surface contact with the top face of the inverted trapezoidal fin of base 1 upper groove, places
Steadily, fixing card sends 2 to pass through base 1 and the pre-buried screens in side point 8, so that test specimen position is fixed, amesdial 5 gauge head top to pre-buried survey
9 leakage end faces, read amesdial 5 reading, mensure completes, and takes down fixing card and sends 2, takes off test specimen 6 to be measured after pointer is stable,
Place mark and support room, carry out amesdial 5 and check, carry out lower battery of tests.
This utility model designs for fixing groove position, by the inverted trapezoidal fin on vertically slidable locating slot 3, base 1, fixation
Card sends position uniqueness in three dimensions for the 2 restrictions test specimen to be measured 6, improves accuracy of measurement, base 1 and vertically slidable positioning
It is rigid joint between groove 3, dial indicators rack 4, limit instrument to greatest extent and creep, connect the measurement causing such as insecure by mistake
Difference, the pre-buried screens in end point 7, the pre-buried gauge head in end 9 end are designed for 6mm diameter cylinders, need not change during test specimen 6 molding to be measured
Become original die trial structure, package unit principle is simple, easy and simple to handle, accuracy of measurement is high.
Claims (8)
1. it is characterised in that including base, base longitudinal axis are provided with a kind of trapped orbit formula concrete shrinkage assay device
Groove (1-1), is provided with inverted trapezoidal fin (1-2) in groove；One end of groove (1-1) is provided with standards (3) straight up, vertically
Part (3) is provided with vertically slidable locating slot (3-1)；The other end of groove (1-1) sets dial holder (4)；Amesdial (5) is fixed on thousand
Divide on dial framework 4；Base (1) sends (2) to be attached with test specimen to be measured (6) by fixing card.
2. a kind of trapped orbit formula concrete shrinkage assay device according to claim 1 is it is characterised in that test specimen to be measured
(6) it is embedded with the pre-buried slip screens point in two bottom surfaces, the pre-buried screens point in end, a pre-buried gauge head in；The pre-buried card in end
Site is embedded in part one end to be tested in advance, can in vertically slidable locating slot (3-1) vertically slidably；Pre-buried gauge head is pre-
It is embedded in the test specimen other end to be measured, dock with amesdial.
3. a kind of trapped orbit formula concrete shrinkage assay device according to claim 1 is it is characterised in that dial holder
(4), standards (3) is rigidly connected with base (1) respectively.
4. a kind of trapped orbit formula concrete shrinkage assay device according to claim 2 is it is characterised in that base (1)
With longitudinal axis for axis of symmetry setting groove (1-1), the bottom surface of inverted trapezoidal fin (1-2) top width and the pre-buried screens in bottom surface point
Width is equal, the width that the width of groove sends more than fixing card.
5. a kind of trapped orbit formula concrete shrinkage assay device according to claim 2 is it is characterised in that end is pre-buried
Slot for cylinder and design in the termination of screens point.
6. a kind of trapped orbit formula concrete shrinkage assay device according to claim 2 is it is characterised in that end is pre-buried
Screens point and a diameter of 6mm of pre-buried gauge head end cross-sectional.
7. a kind of trapped orbit formula concrete shrinkage assay device according to claim 1 is it is characterised in that standards
(3) with longitudinal axis, wedge-shaped impression is set for axis of symmetry, standards (3) and base are to be rigidly connected, standards (3) longitudinal axis
It is mutually perpendicular in same perpendicular and in face with the axis of base.
8. a kind of trapped orbit formula concrete shrinkage assay device according to claim 1 is it is characterised in that fixing card is sent
Including sending body and lever, lever outer wrap rubber sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776724.XU CN205941548U (en) | 2016-07-22 | 2016-07-22 | Trapped orbit formula concrete shrinkage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776724.XU CN205941548U (en) | 2016-07-22 | 2016-07-22 | Trapped orbit formula concrete shrinkage test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941548U true CN205941548U (en) | 2017-02-08 |
Family
ID=57926734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620776724.XU Active CN205941548U (en) | 2016-07-22 | 2016-07-22 | Trapped orbit formula concrete shrinkage test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205941548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362728A (en) * | 2018-01-19 | 2018-08-03 | 防灾科技学院 | A kind of cold area's Modified soil three-dimensional swell-shrink deformation indoor test system |
-
2016
- 2016-07-22 CN CN201620776724.XU patent/CN205941548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362728A (en) * | 2018-01-19 | 2018-08-03 | 防灾科技学院 | A kind of cold area's Modified soil three-dimensional swell-shrink deformation indoor test system |
| CN108362728B (en) * | 2018-01-19 | 2020-04-28 | 防灾科技学院 | Indoor test system for three-dimensional expansion deformation of modified soil in cold region |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170612 Address after: 361000, No. 10 Ting Road, Jimei District, Fujian, Xiamen Patentee after: China Communications Bureau Xiamen Inspection Technology Co., Ltd. Address before: Yinjiang road in Jimei District of Xiamen City, Fujian Province, No. 139 361000 Patentee before: CCCC First Highway Xiamen Engineering Co., Ltd. |