CN211013860U - Reverse bending test fixture for reinforcing steel bar - Google Patents
Reverse bending test fixture for reinforcing steel bar Download PDFInfo
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- CN211013860U CN211013860U CN201921937951.6U CN201921937951U CN211013860U CN 211013860 U CN211013860 U CN 211013860U CN 201921937951 U CN201921937951 U CN 201921937951U CN 211013860 U CN211013860 U CN 211013860U
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- pointer
- steel bar
- reverse bending
- bending test
- connecting rod
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Abstract
The utility model discloses a reverse bending test fixture for steel bars, which comprises a turnover sliding block, a steel bar clamping groove, an angle scale, a pointer, a connecting rod and a pointer mounting seat; the two overturning slide blocks are respectively arranged at two ends of the connecting rod, the bottom of each overturning slide block is respectively connected with the connecting rod in a sliding manner and can be overturned upwards, and a steel bar clamping groove is formed in the top of each overturning slide block; a strong magnet is arranged on the inner side of the steel bar clamping groove; the side surface of each overturning sliding block is respectively provided with an angle scale and a pointer mounting seat, the pointer mounting seat is connected with a pointer, and the pointer correspondingly indicates the angle scale. The utility model discloses the reverse bending test speed of anchor clamps ability accurate control and reverse bending angle, the reverse bending test that can guarantee the reinforcing bar sample reach YB/T5126-2003 requirement, simple structure, low cost.
Description
Technical Field
The utility model belongs to the testing machine, especially reinforcing bar reverse bending test anchor clamps.
Background
According to the specification of a No. 2017 document of ' inspection organization grade standard for road water transport engineering ' inspection, safety supervision and administration ', in a qualification grade standard of a comprehensive level B inspection organization for road engineering, steel bar project detection parameters comprise reverse bending tests, and according to the requirements of a specification ' method for testing bending and reverse bending of steel bars for reinforced concrete ' YB/T5126-2003, a corresponding steel bar reverse bending device is required, but the current steel bar reverse bending device cannot accurately control the speed and the reverse bending angle of the reverse bending test in the process of the steel bar bending test, and cannot enable the reverse bending test of a steel bar sample to meet the requirements of relevant standards.
Disclosure of Invention
The utility model aims at providing a can accurate control reverse bending test speed and reverse bending angle, can guarantee that the reverse bending test of reinforcing bar sample reaches YB/T5126-2003's requirement, simple structure, low cost's reinforcing bar reverse bending test anchor clamps.
The utility model adopts the following technical scheme:
the reinforcing steel bar reverse bending test fixture comprises a turnover sliding block, a reinforcing steel bar clamping groove, an angle scale, a pointer, a connecting rod and a pointer mounting seat; the two overturning slide blocks are respectively arranged at two ends of the connecting rod, the bottom of each overturning slide block is respectively connected with the connecting rod in a sliding manner and can be overturned upwards, and a steel bar clamping groove is formed in the top of each overturning slide block; a strong magnet is arranged on the inner side of the steel bar clamping groove; the side surface of each overturning sliding block is respectively provided with an angle scale and a pointer mounting seat, the pointer mounting seat is connected with a pointer, and the pointer correspondingly indicates the angle scale. The number of the connecting rods is two. And positioning nuts are respectively arranged at two ends of the connecting rod.
The utility model has the advantages of ① simple structure, ② low manufacturing cost, ③ can accurately control reverse bending test speed and reverse bending angle, ④ fully utilizes the existing functions and chassis of the universal tester and can be used with various universal testers, ⑤ meets the requirements of 'method for bending and reverse bending test of reinforcing steel bars for reinforced concrete' YB/T5126-2003, ⑥ the width of reinforcing steel bar clamping groove is suitable for reverse bending tests of reinforcing steel bars with various diameters, ⑦ adsorbs high-strength magnets on the side surfaces of the reinforcing steel bar clamping groove and is used for fixing the position of the reinforcing steel bar relatively stably, and deviation and dislocation in the test process are avoided, so that the reasonability and accuracy of the test are ensured.
Drawings
Fig. 1 is the structure schematic diagram of the reverse bending test fixture for reinforcing steel bars of the utility model.
FIG. 2 is a schematic top view of FIG. 1;
fig. 3 is a left side view of fig. 1.
In the figure, 1: upset slider, 2: reinforcing bar draw-in groove, 3: angle scale, 4: a pointer; 5: connecting rod, 6: positioning nut, 7: pointer mount, 8: a strong magnet.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the scope of the invention.
Reinforcing bar reverse bending test anchor clamps are including upset slider 1, reinforcing bar draw-in groove 2, angle scale 3, pointer 4, connecting rod 5, set nut 6, pointer mount pad 7 and powerful magnet 8. The number of the connecting rods 5 is two, and the two connecting rods 5 are distributed in parallel. Two ends of the traditional milk connecting rod 5 are respectively provided with a positioning nut 6 for limiting the overturning slide block 1 not to slip. The number of the turning sliding blocks 1 is two, and each turning sliding block 1 is connected with the two connecting rods 5 in a sliding mode and can be turned upwards. Each overturning slide block 1 is provided with a steel bar clamping groove 2, and the inner side of each steel bar clamping groove 2 is provided with a strong magnet 8. The side surface of each overturning sliding block 1 is respectively provided with an angle scale 2 and a pointer mounting seat 7, the pointer mounting seat 7 is connected with a pointer 4, and the pointer 4 correspondingly indicates the angle scale 2.
The reinforcing steel bar clamping groove 2 of the reinforcing steel bar reverse bending device is wide, and is suitable for reverse bending tests of reinforcing steel bars with various diameters; the strong magnet 8 is adsorbed on the side face of the steel bar clamping groove 2 and used for fixing the relative stability of the position of a steel bar, and deviation and dislocation in the test process are avoided, so that the reasonability and accuracy of the test are guaranteed.
According to the requirements of a reinforced concrete reinforcing steel bar bending and reverse bending test method YB/T5126-2003, a reverse bending device is required to be provided with a reliable reinforcing steel bar fixing device and an accurate and reliable angle measuring and controlling device. The clamp is a set of reverse bending clamp with an angle indicator, is mainly combined with a 300KN universal testing machine for use, accurately controls the reverse bending test speed and the reverse bending angle, has low manufacturing cost, fully utilizes the existing functions and chassis of the universal testing machine, is matched with the universal testing machine for use, and can meet the requirements of a reinforced concrete reinforcing bar bending and reverse bending test method YB/T5126-2003.
The clamp is matched with a universal testing machine for use, and the use steps of the clamp are that ① is installed on a table plate of the universal testing machine, the position is adjusted, the center of the clamp is aligned with a cold bending punch of a lower cross beam of the universal testing machine, the axis of the clamp is perpendicular to the axis of the punch, ② a steel bar sample which is bent in advance is placed in a steel bar clamping groove 2 (if the steel bar is too thin, a proper strip-shaped steel plate is placed, the gap between the wall 2 of the steel bar clamping groove and the steel bar is not too large), ③ a power supply of the testing machine is turned on, the lower cross beam is adjusted until the punch just contacts with the bending top of the steel bar, ④ a reverse bending test is carried out according to the operation rules of the testing machine, the reverse bending speed is not more than 20/s, ⑤ is stopped immediately when the steel.
Claims (3)
1. Reinforcing bar reverse bending test anchor clamps, its characterized in that: the steel bar turnover device comprises a turnover sliding block, a steel bar clamping groove, an angle scale, a pointer, a connecting rod and a pointer mounting seat; the two overturning slide blocks are respectively arranged at two ends of the connecting rod, the bottom of each overturning slide block is respectively connected with the connecting rod in a sliding manner and can be overturned upwards, and a steel bar clamping groove is formed in the top of each overturning slide block; a strong magnet is arranged on the inner side of the steel bar clamping groove; the side surface of each overturning sliding block is respectively provided with an angle scale and a pointer mounting seat, the pointer mounting seat is connected with a pointer, and the pointer correspondingly indicates the angle scale.
2. The reverse bar bending test fixture of claim 1, wherein: the number of the connecting rods is two.
3. The reverse bar bending test fixture of claim 1, wherein: and positioning nuts are respectively arranged at two ends of the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921937951.6U CN211013860U (en) | 2019-11-12 | 2019-11-12 | Reverse bending test fixture for reinforcing steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921937951.6U CN211013860U (en) | 2019-11-12 | 2019-11-12 | Reverse bending test fixture for reinforcing steel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211013860U true CN211013860U (en) | 2020-07-14 |
Family
ID=71470531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921937951.6U Active CN211013860U (en) | 2019-11-12 | 2019-11-12 | Reverse bending test fixture for reinforcing steel bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211013860U (en) |
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2019
- 2019-11-12 CN CN201921937951.6U patent/CN211013860U/en active Active
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