CN214924355U - Line drawing device for prestressed elastic modulus test piece - Google Patents
Line drawing device for prestressed elastic modulus test piece Download PDFInfo
- Publication number
- CN214924355U CN214924355U CN202120973311.1U CN202120973311U CN214924355U CN 214924355 U CN214924355 U CN 214924355U CN 202120973311 U CN202120973311 U CN 202120973311U CN 214924355 U CN214924355 U CN 214924355U
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- Prior art keywords
- bottom plate
- square bottom
- coating belt
- wire coating
- scribbling
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 239000011248 coating agent Substances 0.000 claims description 48
- 238000000576 coating method Methods 0.000 claims description 48
- 239000011513 prestressed concrete Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009774 resonance method Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a prestressing force elastic modulus test piece setting-out device, includes square bottom plate and four curb plates, and four curb plates set up the position department on four limits of square bottom plate respectively, and four curb plates all rotate with square bottom plate to be connected, and every curb plate all is provided with first line area of scribbling, second line area of scribbling and third line area of scribbling, and first line area of scribbling and second line area of scribbling are established respectively at the curb plate both ends, and the first perpendicular distance of scribbling between the curb plate terminal surface that is close to rather than the line area of scribbling is 5 centimetres, and the perpendicular distance of second line area of scribbling rather than being close to between the curb plate terminal surface is 5 centimetres, the third line area of scribbling sets up the intermediate position department at the curb plate, the below of square bottom plate four corners department all is provided with an adjusting bolt. The utility model discloses the setting-out precision is accurate, guarantees that follow-up experimental precision and result are accurate, and the range of application is wide, and convenient operation is not high to the experimenter requirement, improves experimenter work efficiency, reduces the cost of labor.
Description
Technical Field
The utility model relates to a building engineering elastic modulus test technical field especially relates to a prestressing force elastic modulus test piece setting-out device.
Background
During the development of infrastructure engineering of high-speed railways, strict requirements are put forward on test accuracy. A railway prestressed concrete dynamic elastic modulus test method is provided with clear regulations in national standard GB/T50082-2009 Standard test method for testing the long-term performance and the durability of common concrete. The test is suitable for measuring the dynamic elastic modulus of concrete by adopting a resonance method. The test piece is a cuboid of 100mm × 100mm × 400 mm. Before testing, the mass and size of the test piece need to be measured. And then the test piece is placed at the center of the support body, the molding surface is upward, the measuring rod of the exciting transducer is slightly pressed at 1/2 of the central line of the long side surface of the test piece, and the measuring rod of the receiving transducer is slightly pressed at the position 5mm away from the end surface in the long side surface of the test piece. Therefore, the surface of the test piece needs to be scribed before testing so as to facilitate the placement of the measuring rod. Here, a high demand is placed on the scribing accuracy. But the scoring of the prestressed concrete elastic modulus test piece in the laboratory is usually not performed with high precision. The inaccurate scribing causes a large deviation value of test detection data, and generates a large adverse effect on the later-stage guidance of field construction sequence conversion; and the scribing process is complicated and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a line drawing device for a prestressed elastic modulus test piece.
The utility model adopts the technical proposal that: a line drawing device for a prestressed elastic modulus test piece comprises a square bottom plate and four side plates, wherein the four side plates are respectively arranged at the positions of four sides of the square bottom plate, the four side plates are rotatably connected with the square bottom plate, each side plate is provided with a first line coating belt, a second line coating belt and a third line coating belt, the first line coating belt and the second line coating belt are respectively arranged at two ends of each side plate, the vertical distance between the first line coating belt and the end face of the side plate close to the first line coating belt is 5 cm, the vertical distance between the second line coating belt and the end face of the side plate close to the second line coating belt is 5 cm, the third coating belt is arranged in the middle of the side plate, an adjusting bolt is arranged below the four corners of the square bottom plate, a bolt hole matched with the adjusting bolt is formed in the square bottom plate, the square bottom plate is in threaded connection with the four adjusting bolts, and a leveling bubble is arranged above the four corners of the square bottom plate.
Furthermore, the first wire coating belt and the second wire coating belt are arranged in parallel, and the third wire coating belt and the first wire coating belt are arranged vertically.
Furthermore, the four side plates are all rectangular side plates.
Furthermore, four exhaust through holes are formed in the square bottom plate.
Further, be provided with the pivot on the curb plate, be provided with on the square bottom plate be used for with pivot both ends matched with mounting groove, thereby the both ends of pivot make square bottom plate and curb plate rotate to be connected through stretching into respectively in the mounting groove.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a line drawing device for a prestressed elastic modulus test piece, which is used for drawing a line for a prestressed concrete test piece, has accurate line drawing precision, provides conditions for subsequent tests and ensures the accuracy of test results; the design of the orthogonal rectangular leveling bubble and the bottom surface adjusting bolt can ensure that the test piece is adjusted and observed to be horizontal or not, and the test precision is ensured; the utility model overcomes the limitation of the field, can be used in the field with the gradient not more than 10 degrees, and expands the application range of the utility model; the utility model discloses convenient operation, it is not high to the experimenter requirement, improve testing personnel work efficiency, reduce the cost of labor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the square bottom plate and the adjusting bolt of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 2, a line drawing device for a prestressed elastic modulus test piece comprises a square bottom plate 1 and four side plates 2, wherein the four side plates 2 are respectively arranged at the positions of four sides of the square bottom plate 1, the four side plates 2 are rotatably connected with the square bottom plate 1, each side plate 2 is provided with a first line coating belt 3, a second line coating belt 4 and a third line coating belt 5, the first line coating belt 3 and the second line coating belt 4 are respectively arranged at two ends of each side plate 2, the vertical distance between the first line coating belt 3 and the end surface of the side plate 2 close to the first line coating belt 3 is 5 cm, the vertical distance between the second line coating belt 4 and the end surface of the side plate 2 close to the second line coating belt is 5 cm, the third line coating belt 5 is arranged at the middle position of each side plate 2, an adjusting bolt 6 is respectively arranged below the four corners of the square bottom plate 1, a bolt hole matched with the adjusting bolt 6 is arranged on the square bottom plate 1, the square bottom plate 1 is in threaded connection with four adjusting bolts 6, and a leveling bubble 7 is arranged above the four corners of the square bottom plate 1.
The first wire coating belt 3 and the second wire coating belt 4 are arranged in parallel, and the third wire coating belt 5 is arranged perpendicular to the first wire coating belt 3.
The four side plates 2 are rectangular side plates.
Four exhaust through holes are formed in the square base plate 1, and when a test piece is placed on the square base plate 1, the exhaust is facilitated.
Be provided with pivot 8 on the curb plate 2, be provided with on the square bottom plate 1 be used for with 8 both ends matched with mounting grooves of pivot, thereby the both ends of pivot 8 make square bottom plate 1 rotate with curb plate 2 to be connected through stretching into respectively in the mounting groove.
The utility model discloses during the use, open four curb plates 2 earlier, make four curb plates 2 and square bottom plate 1 be in on the coplanar. The four adjusting bolts 6 are then adjusted while observing the leveling bubble 7 so that the leveling bubble 7 is centered and the square base plate 1 is adjusted to be horizontal. Then, the positions of the first line coating belt 3, the second line coating belt 4 and the third line coating belt 5 are painted with color paint, the test piece is placed on the square bottom plate 1, then the four side plates 2 are respectively rotated to enable the four side plates 2 to be perpendicular to the square bottom plate 1, and meanwhile the paint on the first line coating belt 3, the second line coating belt 4 and the third line coating belt 5 is adhered to the four side faces of the test piece, so that line drawing is completed. And then carrying out an elastic modulus test according to the marked position.
The utility model discloses a prestressed concrete test piece is rule, and the precision is accurate, provides the condition for subsequent test, ensures the test result accuracy; the design of the orthogonal rectangular leveling bubble and the bottom surface adjusting bolt can ensure that the test piece is adjusted and observed to be horizontal or not, and the test precision is ensured; the utility model overcomes the limitation of the field, can be used in the field with the gradient not more than 10 degrees, and expands the application range of the utility model; the utility model discloses convenient operation, it is not high to the experimenter requirement, improve testing personnel work efficiency, reduce the cost of labor.
The above embodiments are based on the technical solution of the present invention, and detailed implementation and specific operation processes are given, but the present invention is not limited to the above embodiments.
Claims (5)
1. The utility model provides a prestressing force elastic modulus test piece setting-out device which characterized in that: the square bottom plate comprises a square bottom plate (1) and four side plates (2), wherein the four side plates (2) are respectively arranged at the positions of four sides of the square bottom plate (1), the four side plates (2) are rotatably connected with the square bottom plate (1), each side plate (2) is provided with a first wire coating belt (3), a second wire coating belt (4) and a third wire coating belt (5), the first wire coating belt (3) and the second wire coating belt (4) are respectively arranged at two ends of each side plate (2), the vertical distance between the first wire coating belt (3) and the end face of the side plate (2) close to the first wire coating belt is 5 cm, the vertical distance between the second wire coating belt (4) and the end face of the side plate (2) close to the second wire coating belt is 5 cm, the third wire coating belt (5) is arranged at the middle position of each side plate (2), and an adjusting bolt (6) is arranged below the four corners of the square bottom plate (1), the square bottom plate (1) is provided with bolt holes matched with the adjusting bolts (6), the square bottom plate (1) is in threaded connection with the four adjusting bolts (6), and a leveling bubble (7) is arranged above the four corners of the square bottom plate (1).
2. The line drawing device for the prestressed elastic modulus test piece as claimed in claim 1, wherein: the first wire coating belt (3) and the second wire coating belt (4) are arranged in parallel, and the third wire coating belt (5) and the first wire coating belt (3) are arranged vertically.
3. The line drawing device for the prestressed elastic modulus test piece as claimed in claim 1, wherein: the four side plates (2) are rectangular side plates.
4. The line drawing device for the prestressed elastic modulus test piece as claimed in claim 1, wherein: four exhaust through holes are formed in the square bottom plate (1).
5. The line drawing device for the prestressed elastic modulus test piece as claimed in claim 1, wherein: be provided with pivot (8) on curb plate (2), be provided with on square bottom plate (1) be used for with pivot (8) both ends matched with mounting groove, thereby the both ends of pivot (8) make square bottom plate (1) rotate with curb plate (2) and be connected through stretching into respectively in the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120973311.1U CN214924355U (en) | 2021-05-08 | 2021-05-08 | Line drawing device for prestressed elastic modulus test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120973311.1U CN214924355U (en) | 2021-05-08 | 2021-05-08 | Line drawing device for prestressed elastic modulus test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214924355U true CN214924355U (en) | 2021-11-30 |
Family
ID=79062936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120973311.1U Expired - Fee Related CN214924355U (en) | 2021-05-08 | 2021-05-08 | Line drawing device for prestressed elastic modulus test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214924355U (en) |
-
2021
- 2021-05-08 CN CN202120973311.1U patent/CN214924355U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 102488 202, floor 2, building 1, No. 73, Changhong West Road, Xilu street, Fangshan District, Beijing Patentee after: China Construction Eighth Engineering Bureau Testing Technology Co.,Ltd. Address before: 102613 10th floor, 101 4th floor, building 46, 69 yard, Yanfu Road, Fangshan District, Beijing Patentee before: CCECC (Beijing) Technology Inspection Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |