CN203561553U - Assembled chuck of concrete tensile strength test jig - Google Patents
Assembled chuck of concrete tensile strength test jig Download PDFInfo
- Publication number
- CN203561553U CN203561553U CN201320668095.5U CN201320668095U CN203561553U CN 203561553 U CN203561553 U CN 203561553U CN 201320668095 U CN201320668095 U CN 201320668095U CN 203561553 U CN203561553 U CN 203561553U
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- China
- Prior art keywords
- concrete
- described fixed
- bolt
- tensile strength
- block
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- Expired - Fee Related
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Abstract
The utility model discloses an assembled chuck of a concrete tensile strength test jig. The assembled chuck comprises a connecting arm, a fixed block, two fixed plates, two clamping blocks, bolts I and bolts II, wherein the connecting arm is fixedly arranged on the fixed block, the two fixed plates are fixedly arranged on the upper and lower side faces of the fixed block respectively through the bolts I, the two clamping blocks are movably arranged between the two fixed plates through the bolts II, the clamping blocks are semi-cylindrical, and the bolts are vertical to semicircular faces of the clamping blocks. According to the assembled chuck of the concrete tensile strength test jig, disclosed by the utility model, the load applied along an axis can be guaranteed, and the condition that a concrete sample and the concrete tensile strength test jig are in the same axis can be guaranteed; furthermore, the concrete tensile strength test jig can keep clamping force with the increase of an applied load, so that the generation of a concentrated load is avoided, and the stability and uniformity of the applied load are guaranteed; moreover, the concrete sample can be effectively fixed and can be prevented from generating sliding which affects a result.
Description
Technical field
The utility model relates to a kind of concrete tension test fixture assembling chuck, belongs to building materials performance test apparatus technical field.
Background technology
Tensile property is concrete important indicator performance, and common method of testing is first to prepare strip concrete sample, then, by using the two ends of fixture clamping strip concrete sample, applies power test with puller system or quantitative counterweight.In prior art, conventional concrete tension test fixture exists concrete sample and fixture not in the problem of same axis, makes the load of concrete sample fail along axis direction, to apply completely; In addition, also there is concrete tension fixture holding force deficiency, can not effectively fix concrete sample, the slip that affects result easily producing, and easily produce load, make applied load stable not and even.
Utility model content
The deficiency that the utility model exists for prior art just, provides a kind of concrete tension test fixture, can avoid concrete sample and fixture not in the problem of same axis, and the load of concrete sample is applied along axis direction; Can guarantee the holding force of concrete tension fixture, can effectively fix concrete sample, avoid the slip that affects result of generation, and avoid producing load, make applied load stable, even.
For addressing the above problem, technical solution adopted in the utility model is as follows:
A kind of concrete tension test fixture assembling chuck, comprise: linking arm, fixed block, fixed head, grip block, bolt one, bolt two, described fixed block is fixedly arranged on described linking arm, two described fixed heads are fixedly arranged on respectively described fixed block upper and lower side by described bolt one, described grip block is two and is movably set between two described fixed heads by described bolt two, described grip block is half-cylindrical, and described bolt two is perpendicular to the semi circular surface of described grip block.Described structure is easy to processing and assembling, and does not affect physical strength and the gripping performance of concrete tension test fixture.
As the improvement of technique scheme, described fixed block is provided with spacing preiection, and described spacing preiection is perpendicular to the direction of test force, and described fixed head is provided with the limited impression that coordinates described spacing preiection.
As the improvement of technique scheme, also comprise limited block, described limited block is fixedly arranged on described linking arm and between described linking arm and described fixed block.Described structure is convenient to described fixed block and is placed rapidly and accurately and assemble.
As the improvement of technique scheme, described fixed head is fillet isosceles trapezoid, and described bolt two is arranged at the place, two base angles of described fixed head.
As the improvement of technique scheme, described fixed head is middle engraved structure.Described structure can be saved making material, and reduces the weight of concrete tension test fixture, and does not affect physical strength and the gripping performance of concrete tension test fixture.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
Concrete tension test fixture described in the utility model can guarantee along axis load application, can guarantee that concrete sample and concrete tension test fixture are on same axis; In addition, concrete tension test fixture can keep holding force along with the increase of added load, avoided generation load, guarantees that institute's load application is stable, even; And can be effectively fixing to concrete sample, can prevent the slip that affects result of its generation; And it is high to meet intensity, the distortion of the test that do not exert an influence within the scope of a constant load, temperature, humidity requirement are low, can meet the requirement of all kinds of experimental enviroments, through practice, confirm, have the ability of carrying out reliable test under multiple testing machine condition.
Accompanying drawing explanation
Fig. 1 is concrete tension test fixture assembling chuck plan structure schematic diagram described in the utility model;
Fig. 2 is concrete tension test fixture assembling chuck side-looking structural representation described in the utility model.
Embodiment
Content of the present utility model is described below in conjunction with specific embodiments.
As shown in Figure 1-2, be concrete tension test fixture assembling chuck structure schematic diagram described in the utility model.Concrete tension test fixture assembling chuck described in the utility model, comprise: linking arm 1, fixed block 3, fixed head 4, grip block 5, bolt 1, bolt 27, described fixed block 3 is fixedly arranged on described linking arm 1, two described fixed heads 4 are fixedly arranged on respectively described fixed block 3 upper and lower sides by described bolt 1, described grip block 5 is two and is movably set between two described fixed heads 4 by described bolt 27, described grip block 5 is half-cylindrical, and described bolt 27 is perpendicular to the semi circular surface of described grip block 5.Described bolt one 6 two ends are respectively arranged with nut 1 and nut 1, and described nut 1 and described nut 1 lay respectively at the outside of two described fixed heads 4; Described bolt 27 two ends are respectively arranged with nut 2 71 and nut 2 72, and described nut 2 71 and described nut 2 72 lay respectively at the outside of two described fixed heads 4.Further with improvement, described fixed block 3 is provided with spacing preiection 31, and described spacing preiection 31 is perpendicular to the direction of test force, and described fixed head 4 is provided with the limited impression that coordinates described spacing preiection 31.Further with improvement, also comprise limited block 2, described limited block 2 is fixedly arranged on described linking arm 1 and between described linking arm 1 and described fixed block 3.Optimally, described fixed head 4 is fillet isosceles trapezoid, and described bolt 27 is arranged at the place, two base angles of described fixed head 4.Further optimally, described fixed head 4 is middle engraved structure.
Particularly, described linking arm 1 is that positive truncated rectangular pyramids shape and long limit are that 110 mm, height are that 80 mm, minor face are 80 mm, described limited block 2 is the disk of diameter 130 mm, thickness 20 mm, the square plate that described fixed block 3 is long limit 100 mm, minor face 40 mm, the trapezoidal long limit of described fixed head 4 is that 250 mm, minor face are that 100 mm, height are 20 mm, the length of described bolt 27 is 170 mm, and diameter is 20 mm, and the diameter of described interval rib 31 is that 100 mm, thickness are 10 mm.Concrete tension test fixture is used steel plate integral body to process, and intensity is not less than Q345 steel; Each parts carry out machining above, possess enough rigidity, not yielding, and can well contact with test specimen and rotate without slippage, and each accessory all carries out antirust processing.
During test, the end of concrete sample is placed between two described grip blocks 5, by two described concrete tension test fixtures assembling chucks two ends of fixing concrete samples respectively, be then placed in puller system or other testing apparatus or device that applies pulling force carries out tension test.
Above content is the detailed description of in conjunction with specific embodiments the utility model being done, and can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.
Claims (5)
1. a concrete tension test fixture is assembled chuck, it is characterized in that, comprise: linking arm (1), fixed block (3), fixed head (4), grip block (5), bolt one (6), bolt two (7), described fixed block (3) is fixedly arranged on described linking arm (1), two described fixed heads (4) are fixedly arranged on respectively described fixed block (3) upper and lower side by described bolt one (6), described grip block (5) is two and is movably set between two described fixed heads (4) by described bolt two (7), described grip block (5) is half-cylindrical, described bolt two (7) semi circular surfaces perpendicular to described grip block (5).
2. concrete tension test fixture as claimed in claim 1 is assembled chuck, it is characterized in that, described fixed block (3) is provided with spacing preiection (31), described spacing preiection (31) is perpendicular to the direction of test force, and described fixed head (4) is provided with the limited impression that coordinates described spacing preiection (31).
3. concrete tension test fixture as claimed in claim 1 assembling chuck, is characterized in that, also comprises limited block (2), described limited block (2) be fixedly arranged on described linking arm (1) and be positioned at described linking arm (1) and described fixed block (3) between.
4. as the concrete tension test fixture assembling chuck as described in arbitrary in claim 1-3, it is characterized in that, described fixed head (4) be fillet isosceles trapezoid, and described bolt two (7) is arranged at two base angles of described fixed head (4) and locates.
5. concrete tension test fixture assembling chuck as claimed in claim 4, is characterized in that, described fixed head (4) is middle engraved structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320668095.5U CN203561553U (en) | 2013-10-28 | 2013-10-28 | Assembled chuck of concrete tensile strength test jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320668095.5U CN203561553U (en) | 2013-10-28 | 2013-10-28 | Assembled chuck of concrete tensile strength test jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561553U true CN203561553U (en) | 2014-04-23 |
Family
ID=50511268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320668095.5U Expired - Fee Related CN203561553U (en) | 2013-10-28 | 2013-10-28 | Assembled chuck of concrete tensile strength test jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561553U (en) |
-
2013
- 2013-10-28 CN CN201320668095.5U patent/CN203561553U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140423 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |