CN218331568U - Concrete shrinkage test testing arrangement - Google Patents
Concrete shrinkage test testing arrangement Download PDFInfo
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- CN218331568U CN218331568U CN202221717767.2U CN202221717767U CN218331568U CN 218331568 U CN218331568 U CN 218331568U CN 202221717767 U CN202221717767 U CN 202221717767U CN 218331568 U CN218331568 U CN 218331568U
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- 238000012360 testing method Methods 0.000 title claims abstract description 89
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to a concrete shrinkage test testing device, including rectangular base, levelling device, support bracket, locating lever, reinforcing plate, amesdial dead lever and amesdial fixed screw, rectangular base is used for supporting concrete shrinkage test testing device, levelling device is located four base angles of rectangular base, levelling device can rotate the adjustment height, levels the base, guarantees concrete shrinkage test testing device's levelness; the supporting bracket is fixed on the rectangular base and used for supporting a test piece; the utility model discloses can the levelling device can adjust the height respectively, make the base be the horizontality, improve this test device's precision and reduce experimental environment requirement, adopt the support bracket, when guaranteeing that the test piece puts stably, reduce external force and influence the test piece.
Description
Technical Field
The utility model relates to a concrete shrinkage test field especially relates to a concrete shrinkage test testing arrangement.
Background
At present, concrete shrinkage is one of material characteristics of concrete, and the shrinkage rate of the concrete is often required to be measured in the research of novel concrete materials so as to ensure that the concrete can meet the deformation requirement of a structure in actual engineering application and reduce the probability of cracks appearing on a floor slab or a wall body.
According to GB/T50082-2009 standard of test methods for long-term performance and durability of ordinary concrete, a concrete shrinkage test usually adopts two test modes of a non-contact method and a contact method. Although the non-contact method has high measurement accuracy, the adopted instrument has high cost and cannot be applied in a wide range. In contrast, the contact method is simple to operate, the instrument is cheap, and the measurement precision can meet the requirements.
Most of the currently generally adopted contact method concrete shrinkage test devices have obvious defects. A reinforcing fixing device is not adopted at a positioning plate of the testing device, so that the testing device is easily slightly deformed by extrusion or collision of a test piece in the testing process, and the testing precision is reduced; the whole piece of flat plate is adopted for supporting at the bearing plate of the test piece, and the contact area and the friction force between the flat plate and the test piece are large, so that the test piece is slightly deformed, and the test precision is reduced; in the test process, the instrument is difficult to level, so that errors occur in the test.
For example, chinese patent CN215116281U discloses a concrete shrinkage test device, which includes a base, two vertical plates sequentially arranged along a horizontal direction are connected to the base in a sliding manner, a sliding direction of the two vertical plates is the same as a direction of arrangement of the two vertical plates, and a digital display dial indicator is connected to one vertical plate in a sliding manner along a vertical direction. The vertical plates can slide on the base along the horizontal direction, so that the distance between the two vertical plates is changed, and the vertical plates are suitable for detecting concrete blocks with different lengths; the digital display amesdial can slide along vertical direction on the riser for the digital display amesdial can supply to be in the ejector pin conflict of co-altitude not, so that be applicable to and detect the concrete piece of co-altitude not. This application can be applicable to the concrete piece that detects different specifications. However, the levelness of the bottom plate cannot be adjusted, and the vertical plate of the bottom plate is easy to deform due to the deformation of concrete, so that the error of the measurement result is caused.
Chinese patent CN215180207U, although having a bottom plate and supporting legs, has a structure with a plurality of screw rods and matching rods, which is somewhat complicated.
In view of the above problems, it is necessary for the applicant to design a concrete shrinkage test testing device to improve the test accuracy and efficiency.
SUMMERY OF THE UTILITY MODEL
This neotype main aim at provides a concrete shrinkage test testing arrangement, aims at solving present current concrete shrinkage test testing arrangement and lacks bottom levelling device, unable test environment and the improvement measurement accuracy who adapts to complicacy.
In order to achieve the purpose, the technical scheme adopted by the utility model is to provide a concrete shrinkage test testing device, which comprises a rectangular base, a leveling device, a bearing bracket, a positioning rod, a reinforcing plate, a dial indicator fixing rod and a dial indicator fixing screw, wherein the rectangular base is used for supporting the concrete shrinkage test testing device, the leveling device is positioned at four bottom corners of the rectangular base, the leveling device can be rotated to adjust the height, the base is leveled, and the levelness of the concrete shrinkage test testing device is ensured; the bearing bracket is fixed on the rectangular base and used for bearing the test piece.
The number of the supporting brackets is at least two, the supporting brackets are located at equal positions of the long edges of the base, and the supporting brackets are perpendicular to the long edges of the base.
Preferably, the number of the supporting brackets is two, the supporting brackets are positioned at the trisection position of the long edge of the base, and the supporting bracket is vertical to the long edge of the base.
Preferably, the locating lever is concave, and the concave of locating lever is used for fixed concrete sample copper nail position, the locating lever is located the minor face perpendicular bisector of rectangular base, and highly is 100mm, and apart from rectangular base one side minor face 70mm.
Preferably, the reinforcing plate is used for fixing the positioning rod and reducing deformation of the positioning rod, the reinforcing plate is in the shape of a right triangle, the length of the reinforcing plate is 100mm, the width of the reinforcing plate is 50mm, the thickness of the reinforcing plate is 5mm, the long side of the reinforcing plate is fixedly connected with the positioning rod, and the short side of the reinforcing plate is located on the perpendicular bisector of the short side of the rectangular base and fixedly connected with the base.
Preferably, the dial indicator fixing rod is used for fixing the dial indicator, and the dial indicator fixing rod is provided with three dial indicator hole sites, the diameter of the dial indicator hole sites is 5mm, and the height of the dial indicator hole sites is 50mm,70mm and 90mm respectively.
Preferably, the dial indicator fixing screw is used for fixing the dial indicator.
Preferably, the base is each part fixed platform, is the cuboid shape, and is 675mm long, 160mm wide, and 30mm high.
Preferably, the concave inner space of the concave positioning rod can accurately position the position of the copper nail to ensure the test precision.
Preferably, the quantity of reinforcing plate can set up according to actual demand, can adjust according to the height of actual locating lever, and preferably, the height is 2/3-1 of the height of locating lever.
The utility model has the advantages that: the utility model discloses a levelling device. The leveling device can respectively adjust the height, so that the base is in a horizontal state, the precision of the testing device is improved, and the requirement of a testing environment is reduced.
The utility model discloses a support bracket when guaranteeing that the test piece is put stably, reduces external force and influences the test piece.
The utility model discloses be provided with the font locating lever, but the accurate positioning test piece one end copper nail position guarantees experimental precision.
The utility model discloses be provided with and strengthen the version, effective control locating lever deformation improves experimental precision.
The utility model discloses can be according to the test piece size to test device size adjustment to by the customization processing of mill completion, effectively reduce test cost and improve experimental precision.
Drawings
Fig. 1 is a schematic structural diagram of the present novel embodiment.
Wherein the numbers represent: 1. a base; 2. a leveling device; 3. a support bracket; 4. positioning a rod; 5. a reinforcing plate; 6. fixing the rod by the dial indicator; 7. and fixing screws of the dial indicator.
The implementation, functional features and advantages of the present novel object will be further explained with reference to the accompanying drawings in combination with the embodiments.
Detailed Description
The present invention will be further described with reference to the following description and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
As shown in fig. 1, the utility model provides a concrete shrinkage test testing device, including rectangular base 1, levelling device 2, support bracket 3, locating lever 4, reinforcing plate 5, amesdial dead lever 6 and amesdial fixed screw 7, rectangular base 1 is used for supporting concrete shrinkage test testing device, levelling device 2 is located four base angles of rectangular base 1, levelling device 2 can rotate the adjustment height, levels base 1, guarantees concrete shrinkage test testing device's levelness; the support bracket 3 is fixed on the rectangular base 1 and used for supporting a test piece.
The number of the support brackets 3 is two, the support brackets 3 are positioned at the trisection positions of the long sides of the base, and the support brackets 3 are perpendicular to the long sides of the rectangular base 1.
The positioning rod 4 is in a concave shape, the concave shape of the positioning rod 4 is used for fixing the position of a copper nail of a concrete test piece, and the positioning rod 4 is located on a short edge perpendicular line, is 100mm in height and is 70mm away from a short edge on one side of the rectangular base 1.
The reinforcing plate 5 is used for fixing the positioning rod 4 and reducing deformation of the positioning rod 4, the reinforcing plate 5 is in the shape of a right-angled triangle, is 100mm long, 50mm wide and 5mm thick, the long side is fixedly connected with the positioning rod, and the short side is located on the perpendicular line of the short side of the rectangular base 1 and fixedly connected with the base 1.
The dial indicator fixing rod 6 is used for fixing a dial indicator, three dial indicator hole sites are shared in the embodiment, the diameter is 5mm, and the height is 50mm,70mm and 90mm respectively.
The dial indicator fixing screw 7 is used for fixing the dial indicator.
Preferably, the base is each part fixed platform, is the cuboid shape, and is 675mm long, 160mm wide, and the height is 30mm.
Preferably, the concave inner space of the concave positioning rod can accurately position the position of the copper nail to ensure the test precision.
The working process of the embodiment is as follows:
when carrying out the contractility test with the test piece, install the test piece on bearing bracket 3, pass through the copper nail with the one end of test piece and fix on locating lever 4, the copper nail is fixed a position through the character cut in bas-relief on the locating lever 4, and the other end passes through fixing device to be fixed on amesdial dead lever 6, specifically contradicts in the detection position of amesdial, realizes the measurement to the shrinkage of concrete block, and the detection position that will drive the amesdial when the concrete block contracts removes and then detects the shrinkage of concrete block.
When meetting the detection site levelness when not enough, can carry out the leveling of bottom plate through the levelling device who adjusts the bottom of rectangle bottom plate 1, prevent that the levelness is not enough and influence measuring result, because reinforcing plate 5 contradicts on locating lever 4 when measuring to can prevent that the concrete from leading to the condition of deformation distortion when changing.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (8)
1. A concrete shrinkage test testing device comprises a rectangular base, a leveling device, a supporting bracket, a positioning rod, a reinforcing plate, a dial indicator fixing rod and dial indicator fixing screws, and is characterized in that the rectangular base is used for supporting the concrete shrinkage test testing device, the leveling device is positioned at four bottom corners of the rectangular base, the leveling device can rotatably adjust the height, the base is leveled, and the levelness of the concrete shrinkage test testing device is ensured; the bearing bracket is fixed on the rectangular base and used for bearing the test piece.
2. The concrete shrinkage test testing apparatus of claim 1, wherein at least two support brackets are provided, the support brackets are located at positions equally dividing the long sides of the base, and the support brackets are perpendicular to the long sides of the base.
3. The concrete shrinkage test apparatus of claim 2, wherein the number of the support brackets is two, the support brackets are located at trisections of long sides of the base, and the support brackets are perpendicular to the long sides of the base.
4. The concrete shrinkage test testing device of claim 1, wherein the positioning rod is in a concave shape, the concave shape of the positioning rod is used for fixing the position of a copper nail of the concrete sample, and the positioning rod is located on a perpendicular bisector of the short side, has a height of 100mm, and is 70mm away from the short side of one side of the base.
5. The concrete shrinkage test testing device of claim 4, wherein the reinforcing plate is used for fixing the positioning rod and reducing deformation of the positioning rod, the reinforcing plate is a right triangle, 100mm long, 50mm wide and 5mm thick, the long side of the reinforcing plate is fixedly connected with the positioning rod, and the short side of the reinforcing plate is located on the perpendicular bisector of the short side of the rectangular base and is fixedly connected with the base.
6. The concrete shrinkage test testing device of claim 1, wherein the dial indicator fixing rod is used for fixing the dial indicator, three dial indicator hole sites are provided, the diameter is 5mm, and the height is 50mm,70mm and 90mm respectively.
7. The concrete shrinkage test testing device of claim 1, wherein the dial indicator fixing screw is used for fixing the dial indicator.
8. The concrete shrinkage test testing device of claim 1, wherein the base is a fixing platform for each component, is in the shape of a cuboid, and has a length of 675mm, a width of 160mm and a height of 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221717767.2U CN218331568U (en) | 2022-07-05 | 2022-07-05 | Concrete shrinkage test testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221717767.2U CN218331568U (en) | 2022-07-05 | 2022-07-05 | Concrete shrinkage test testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218331568U true CN218331568U (en) | 2023-01-17 |
Family
ID=84869175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221717767.2U Active CN218331568U (en) | 2022-07-05 | 2022-07-05 | Concrete shrinkage test testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218331568U (en) |
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2022
- 2022-07-05 CN CN202221717767.2U patent/CN218331568U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240109 Address after: Floor 7-8, No. 18 West Ring Fourth Road, South District, Zhongshan City, Guangdong Province, 528400 Patentee after: Zhongshan Yuehua Concrete Co.,Ltd. Address before: 510062 Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong 729 Patentee before: GUANGDONG University OF TECHNOLOGY |