CN111781071B - Bending test device for reinforcing steel bars - Google Patents
Bending test device for reinforcing steel bars Download PDFInfo
- Publication number
- CN111781071B CN111781071B CN202010835400.XA CN202010835400A CN111781071B CN 111781071 B CN111781071 B CN 111781071B CN 202010835400 A CN202010835400 A CN 202010835400A CN 111781071 B CN111781071 B CN 111781071B
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- steel bar
- group
- workbench
- seat
- sensing elements
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000005452 bending Methods 0.000 title claims abstract description 22
- 229910001294 Reinforcing steel Inorganic materials 0.000 title description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 241000251131 Sphyrna Species 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a bending test device for steel bars, which relates to the field of bending test equipment and comprises a machine body, wherein a guide rail is arranged on the upper surface of a workbench at the upper end of the machine body, steel bar supporting rollers are arranged on a pair of supporting seats which are connected with the guide rail in a sliding manner, a main hydraulic cylinder is arranged on the upper surface of a top seat connected with the workbench through a support column, and a top is connected with the bottom of a top mounting seat connected with the lower end of a telescopic rod of the main hydraulic cylinder. According to the invention, after the corresponding hammer heads are selected by sliding adjustment of the top on the top mounting seat, the bottom ends of the limiting pins are matched and inserted into the limiting holes, so that the top is limited, and the hammer heads are fast and convenient to select and replace; because the diameter of the steel bar to be tested is different, the size of the steel bar placing groove is different from that of the matched notch, and the pin shafts are arranged at the two ends of the steel bar supporting roller and are clamped in the clamping grooves formed in the side supporting plates, the steel bar supporting roller can be replaced conveniently and rapidly.
Description
Technical Field
The invention relates to the field of bending test equipment, in particular to a bending test device for reinforcing steel bars.
Background
When the steel bar is used in the field, a test piece needs to be extracted for mechanical property inspection, and the quality of the steel bar is required to meet the related standard. The steel bar bending test machine is special equipment for carrying out cold bending test and plane reverse bending test on steel bars, and in the process of carrying out the cold bending test, the steel bar bending test machine carries out test detection on the steel bars in order to ensure that more groups of test data are obtained, and the steel bars are jacked and bent by hammerheads with different diameters, so that the hammerheads are frequently replaced, and the installation and fixing processes of the hammerheads are more troublesome.
Disclosure of Invention
The invention aims to provide a bending test device for reinforcing steel bars, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a bending test device of reinforcing bar, includes the organism, the upper end of organism is the workstation, and the upper surface of workstation is equipped with the guide rail, and sliding connection has a pair of supporting seat on the guide rail, is equipped with the reinforcing bar backing roll on the supporting seat, the both ends of guide rail all are equipped with the pneumatic cylinder support, and the lateral wall of both sides pneumatic cylinder support all has the roll adjustment pneumatic cylinder through the bolt fastening, and the telescopic link of roll adjustment pneumatic cylinder runs through the pneumatic cylinder support, and two telescopic link tip respectively with two supporting seat fixed connection of roll adjustment pneumatic cylinder, the four terminal angle departments of upper surface of workstation pass through pillar fixedly connected with footstock, and the upper surface of footstock passes through the bolt fastening to be had the master cylinder, and the telescopic link portion of master cylinder runs through the footstock perpendicularly downwards, and the telescopic link end connection of master cylinder has pressure sensor, the lower extreme fixedly connected with top mount pad of pressure sensor, the bottom of footstock mount pad is connected with the top.
Preferably, the side support plates are integrally formed on the two sides of the support seat, the U-shaped clamping grooves are formed in the side support plates, and pin shafts are arranged at the two ends of the reinforcing steel bar support rollers and clamped in the clamping grooves formed in the side support plates.
Preferably, the middle part of the steel bar supporting roller is provided with an annular groove-shaped steel bar placing groove, and the groove surface of the steel bar placing groove is provided with anti-skid friction lines.
Preferably, the pressure sensor is internally provided with three groups of pressure sensitive elements, each group of sensitive elements is in three-dimensional space distribution, the first group of sensitive elements and the second group of sensitive elements are distributed in a plane parallel to the upper surface of the workbench, and the third group of sensitive elements are vertical to the upper surface of the workbench; the sensing direction of the first group of sensing elements is parallel to the axial direction of the test steel bar, the sensing direction of the second group of sensing elements is vertical to the axial direction of the test steel bar, a fourth group of sensing elements and a fifth group of sensing elements are respectively arranged in clamping grooves on two sides of the side support plate, and the sensing directions of the fourth group of sensing elements and the fifth group of sensing elements are vertical to the test steel bar.
Preferably, the bottom of the plug installation seat is provided with a sliding groove with a T-shaped section, the top of the plug is a sliding seat with a T-shaped section, and the sliding seat is matched with the sliding groove at the bottom of the plug installation seat in a sliding connection.
Preferably, 3-4 hammerheads are integrally formed at the bottom of the plug, and the bottoms of the hammerheads are convex round bodies with different diameters.
Preferably, one side of the upper surface of the plug mounting seat is integrally provided with a limiting pin seat, a limiting pin is vertically inserted in the limiting pin seat, the upper surface of the sliding seat is provided with a limiting hole corresponding to each hammer head, and the bottom end of the limiting pin is matched and inserted in the limiting hole.
Preferably, a cylindrical spring cavity is arranged in the limit pin seat, a chuck is integrally formed in the portion, located in the spring cavity, of the limit pin, and a reset spring is connected between the chuck and the top of the spring cavity.
The invention has the technical effects and advantages that:
1. according to the invention, after the corresponding hammer heads are selected by sliding adjustment of the top on the top mounting seat, the bottom ends of the limiting pins are matched and inserted into the limiting holes, so that the top is limited, and the hammer heads are fast and convenient to select and replace;
2. because the diameter of the steel bar to be tested is different, the size of the steel bar placing groove is different from that of the matched notch, and the pin shafts are arranged at the two ends of the steel bar supporting roller and are clamped in the clamping grooves formed in the side supporting plates, the steel bar supporting roller can be replaced conveniently and rapidly.
3. The application uses multiunit pressure sensing element, measures the force of reinforcing bar bending process respectively, and first group sensing element and second group sensing element are to the reinforcing bar bending process in, and rather than perpendicular and parallel pressure are measured, and third group sensing element is more obvious to the change of pressure, and fourth group and fifth group sensing element then can be to the pressure analysis of reinforcing bar bending process in contact, have improved bending test device's application range greatly.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front cross-sectional view of the structure of the present invention.
Fig. 3 is a cross-sectional view at A-A in fig. 2.
Fig. 4 is an enlarged view at B in fig. 3.
Fig. 5 is an enlarged view at C in fig. 3.
Fig. 6 is a schematic perspective view of 13 in the present invention.
In the figure: 1. a body; 2. a work table; 3. a guide rail; 4. a support base; 41. a side support plate; 5. a reinforcing bar support roller; 51. a steel bar placing groove; 6. a hydraulic cylinder support; 7. a distance-adjusting hydraulic cylinder; 8. a support post; 9. a top base; 10. a master hydraulic cylinder; 11. a pressure sensor; 12. a top mounting seat; 13. a plug; 131. a slide; 132. a hammer head; 133. a limiting hole; 14. a limit pin seat; 15. a limiting pin; 151. a chuck; 16. and a return spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a bending test device for steel bars as shown in fig. 1-5, which comprises a machine body 1, wherein the upper end of the machine body 1 is a workbench 2, the upper surface of the workbench 2 is provided with a guide rail 3, a pair of supporting seats 4 are slidably connected to the guide rail 3, the supporting seats 4 are provided with steel bar supporting rollers 5, as shown in fig. 1 and 4, side supporting plates 41 are integrally formed on two sides of the supporting seats 4, clamping grooves of U-shaped are formed on the side supporting plates 41, pin shafts are arranged at two ends of the steel bar supporting rollers 5 and clamped in the clamping grooves formed on the side supporting plates 41, rapid replacement of the steel bar supporting rollers 5 is facilitated, annular groove-shaped steel bar placing grooves 51 are formed in the middle of the steel bar supporting rollers 5, anti-skidding friction lines are formed on the groove surfaces of the steel bar placing grooves 51, lateral rolling deflection is prevented from occurring in the steel bar placing grooves 51, two ends of the guide rail 3 are provided with hydraulic cylinder supports 6, outer side walls of the two side hydraulic cylinder supports 6 are fixedly provided with distance adjusting hydraulic cylinders 7 through bolts, the distance adjusting hydraulic cylinders 7 are fixedly arranged on the two ends of the hydraulic cylinder supports 6, the two hydraulic cylinders 4 penetrate through the two supporting cylinders 4 and are fixedly connected with the two supporting cylinders 4 respectively, and the distance between the two supporting cylinders 4 are conveniently adjusted by the distance adjusting the length of the two supporting cylinders 4 and the supporting cylinders 4 are fixedly connected. The pressure sensor is internally provided with three groups of pressure sensitive elements, each group of sensitive elements is in three-dimensional space distribution, the first group of sensitive elements and the second group of sensitive elements are distributed in a plane parallel to the upper surface of the workbench, and the third group of sensitive elements are vertical to the upper surface of the workbench; the sensing direction of the first group of sensing elements is parallel to the axial direction of the test steel bar, the sensing direction of the second group of sensing elements is vertical to the axial direction of the test steel bar, a fourth group of sensing elements and a fifth group of sensing elements are respectively arranged in clamping grooves on two sides of the side support plate, and the sensing directions of the fourth group of sensing elements and the fifth group of sensing elements are vertical to the test steel bar. The fourth and fifth groups of sensitive elements can be positioned at the bottom of the clamping groove or positioned at the position of the clamping groove in the horizontal direction, so that the measuring range is improved.
The test steel bars are fastened through the steel bar fixing grooves 51, the test on the tensile strength of the steel bars can be simultaneously completed by using the stretching and compressing of the two distance-adjusting hydraulic cylinders 7, the pressure test of the main hydraulic cylinder 10 can be simultaneously added at the moment, and multiple measurements can be simultaneously carried out on the steel bars.
Referring to fig. 1 and 2, the four corners of the upper surface of the workbench 2 are fixedly connected with a top seat 9 through a support column 8, a main hydraulic cylinder 10 is fixed on the upper surface of the top seat 9 through bolts, the telescopic rod portion of the main hydraulic cylinder 10 vertically penetrates through the top seat 9 downwards, the telescopic rod end portion of the main hydraulic cylinder 10 is connected with a pressure sensor 11, the lower end of the pressure sensor 11 is fixedly connected with a top mounting seat 12, the bottom of the top mounting seat 12 is connected with a top 13, and the telescopic rod of the main hydraulic cylinder 10 is controlled to extend downwards, so that the top 13 pushes against a test steel bar, the test steel bar is bent, and the pressure sensor 11 is used for detecting the force applied by the top 13 to the steel bar.
As shown in fig. 2, fig. 5 and fig. 6, the bottom of the top mounting seat 12 is provided with a chute with a T-shaped cross section, the top of the top 13 is a slide base 131 with a T-shaped cross section, and the slide base 131 is matched with the chute at the bottom of the top mounting seat 12 in a sliding connection, so that the top 13 is conveniently and slidably clamped and fixed on the top mounting seat 12.
Referring to fig. 5 and 6, 3-4 hammers 132 are integrally formed at the bottom of the top 13, the bottoms of the hammers 132 are convex round bodies with different diameters, the positions can be replaced according to the requirement of steel bar testing, a limit pin seat 14 is integrally formed at one side of the upper surface of the top mounting seat 12, a limit pin 15 is vertically inserted in the limit pin seat 14, a limit hole 133 is formed at the upper surface of the sliding seat 131 corresponding to each hammers 132, after the corresponding hammers 132 are selected, the bottom ends of the limit pins 15 are matched and inserted in the limit holes 133, the top 13 is limited, a cylindrical spring cavity is arranged inside the limit pin seat 14, a chuck 151 is integrally formed at the part of the limit pin 15 located in the spring cavity, a reset spring 16 is connected between the chuck 151 and the top of the spring cavity, the bottom ends of the limit pins 15 are tightly inserted in the limit holes 133 under the elasticity of the reset spring 16, and the bottom ends of the limit pins 15 are pulled upwards through pulling the pulling heads at the upper ends of the limit pins 15, so that the bottom ends of the limit pins 15 are separated from the limit holes 133, and the top 13 is convenient to replace the hammers 13.
When the invention works, the distance between the two supporting seats 4 and the steel bar supporting rollers 5 arranged on the supporting seats 4 is adjusted by controlling the expansion and contraction of the telescopic rods of the two distance-adjusting hydraulic cylinders 7, so that the distance is convenient to match with the length of a test steel bar, and then the test steel bar is placed on the steel bar placing groove 51 arranged on the two steel bar supporting rollers 5, so that the steel bar is prevented from rolling and shifting sideways; because the diameters of the tested steel bars are different, the sizes of the steel bar placing grooves 51 and the matched notch are also different, and the pin shafts arranged at the two ends of the steel bar supporting roller 5 are clamped in the clamping grooves formed in the side supporting plates 41, so that the steel bar supporting roller 5 can be replaced conveniently and rapidly;
when a bending test is carried out, the telescopic rod of the main hydraulic cylinder 10 is controlled to extend downwards, so that the jacking head 13 jacks the test steel bar, the test steel bar is bent, and the pressure sensor 11 is used for detecting the force exerted by the jacking head 13 on the steel bar;
when the different hammerheads 132 need to be replaced, the hammerheads 13 are slidably adjusted on the top mounting seat 12, after the corresponding hammerheads 132 are selected, the bottom ends of the limiting pins 15 are matched and inserted into the limiting holes 133, the hammerheads 13 are limited, and the hammerheads 132 are selected and replaced quickly and conveniently.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (1)
1. The utility model provides a bending test device of reinforcing bar, includes organism (1), its characterized in that: the upper end of the machine body (1) is a workbench (2), the upper surface of the workbench (2) is provided with a guide rail (3), a pair of supporting seats (4) are slidably connected on the guide rail (3), steel bar supporting rollers (5) are arranged on the supporting seats (4), hydraulic cylinder supports (6) are arranged at two ends of the guide rail (3), distance-adjusting hydraulic cylinders (7) are fixed on the outer side walls of the hydraulic cylinder supports (6) through bolts, telescopic rods of the distance-adjusting hydraulic cylinders (7) penetrate through the hydraulic cylinder supports (6), telescopic rod ends of the two distance-adjusting hydraulic cylinders (7) are fixedly connected with the two supporting seats (4) respectively, top seats (9) are fixedly connected to four corners of the upper surface of the workbench (2) through struts (8), main hydraulic cylinders (10) are fixed on the upper surface of the top seats (9) through bolts, telescopic rod parts of the main hydraulic cylinders (10) vertically penetrate downwards through the top seats (9), pressure sensors (11) are connected to the telescopic rod end parts of the main hydraulic cylinders (10), lower ends of the pressure sensors are fixedly connected with top heads (12) of the pressure sensors, top heads (41) are fixedly connected with top heads (12) of the top heads (41) of the top plates, the top plates (41) are integrally arranged on two sides of the top plates (41), the two ends of the steel bar supporting roller (5) are provided with pin shafts which are clamped in clamping grooves formed in the side support plates (41), the middle part of the steel bar supporting roller (5) is provided with an annular groove-shaped steel bar placing groove (51), the groove surface of the steel bar placing groove (51) is provided with anti-skid friction lines, three groups of pressure sensitive elements are arranged in the pressure sensor (11), each group of sensitive elements are distributed in a three-dimensional space, the first group of sensitive elements and the second group of sensitive elements are distributed in a plane parallel to the upper surface of the workbench (2), and the third group of sensitive elements are perpendicular to the upper surface of the workbench (2); the sensing direction of the first group of sensing elements is parallel to the axial direction of the test steel bar, the sensing direction of the second group of sensing elements is vertical to the axial direction of the test steel bar, a fourth group of sensing elements and a fifth group of sensing elements are respectively arranged in clamping grooves on two sides of the side support plate (41), the sensing directions of the fourth group of sensing elements and the fifth group of sensing elements are vertical to the test steel bar, the fourth group of sensing elements and the fifth group of sensing elements analyze the pressure of the contact piece in the bending process of the steel bar, and the application range of the bending test device is improved; the bottom of the top mounting seat (12) is provided with a sliding groove with a T-shaped section, the top of the top (13) is provided with a sliding seat (131) with a T-shaped section, and the sliding seat (131) is matched with the sliding groove at the bottom of the top mounting seat (12) in a sliding connection; 3-4 hammerheads (132) are integrally formed at the bottom of the plug (13), and the bottoms of the hammerheads (132) are convex round bodies with different diameters; a limiting pin seat (14) is integrally formed on one side of the upper surface of the plug mounting seat (12), a limiting pin (15) is vertically inserted in the limiting pin seat (14), a limiting hole (133) is formed in the upper surface of the sliding seat (131) corresponding to the position of each hammer head (132), and the bottom end of the limiting pin (15) is matched and inserted in the limiting hole (133); the inner part of the limiting pin seat (14) is provided with a cylindrical spring cavity, a chuck (151) is integrally formed at the part of the limiting pin (15) positioned in the spring cavity, and a reset spring (16) is connected between the chuck (151) and the top of the spring cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010835400.XA CN111781071B (en) | 2020-08-19 | 2020-08-19 | Bending test device for reinforcing steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010835400.XA CN111781071B (en) | 2020-08-19 | 2020-08-19 | Bending test device for reinforcing steel bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111781071A CN111781071A (en) | 2020-10-16 |
| CN111781071B true CN111781071B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010835400.XA Active CN111781071B (en) | 2020-08-19 | 2020-08-19 | Bending test device for reinforcing steel bars |
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| CN (1) | CN111781071B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986006B (en) * | 2021-02-08 | 2024-03-29 | 江西科技学院 | Test tool and test method for bending mechanical property of sandwich structure |
| CN113866014B (en) * | 2021-09-28 | 2022-05-13 | 南京林业大学 | Automatic roll-changing bending test machine |
| CN114486526B (en) * | 2022-01-26 | 2023-08-25 | 唐山市市场监管综合执法局 | Measuring instrument for detecting bearing limit value of steel pipe and using method thereof |
| CN117019655B (en) * | 2023-10-08 | 2023-12-15 | 甘肃百瑞祥工程检测有限公司 | Reinforcing steel bar performance detection device for construction engineering detection and detection method thereof |
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| KR20120067742A (en) * | 2010-12-16 | 2012-06-26 | 주식회사 포스코 | Bending test device |
| CN205593682U (en) * | 2016-04-29 | 2016-09-21 | 韶关学院 | Answer variant three -dimensional pressure sensor |
| CN208758521U (en) * | 2018-09-17 | 2019-04-19 | 曹仙鹏 | A kind of civil engineering steel bar bending device |
| CN209102528U (en) * | 2018-11-07 | 2019-07-12 | 浙江华昊建筑材料检测有限公司 | A kind of reinforcing steel bar bending tester |
| CN209690080U (en) * | 2019-03-13 | 2019-11-26 | 绍兴市容纳测控技术有限公司 | A kind of modified reinforcing steel bar bending tester |
| CN209998821U (en) * | 2019-05-09 | 2020-01-31 | 青岛永基重型机床有限公司 | Cutter head replacing device of numerical control dragon machine tool |
| CN110926960A (en) * | 2019-11-27 | 2020-03-27 | 常德鑫睿新材料有限公司 | Non ferrous metal alloy material testing machine for bending strength |
| CN210863410U (en) * | 2019-08-14 | 2020-06-26 | 天津市东丽区建筑工程试验室 | Reinforcing bar bending test device |
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2020
- 2020-08-19 CN CN202010835400.XA patent/CN111781071B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120067742A (en) * | 2010-12-16 | 2012-06-26 | 주식회사 포스코 | Bending test device |
| CN205593682U (en) * | 2016-04-29 | 2016-09-21 | 韶关学院 | Answer variant three -dimensional pressure sensor |
| CN208758521U (en) * | 2018-09-17 | 2019-04-19 | 曹仙鹏 | A kind of civil engineering steel bar bending device |
| CN209102528U (en) * | 2018-11-07 | 2019-07-12 | 浙江华昊建筑材料检测有限公司 | A kind of reinforcing steel bar bending tester |
| CN209690080U (en) * | 2019-03-13 | 2019-11-26 | 绍兴市容纳测控技术有限公司 | A kind of modified reinforcing steel bar bending tester |
| CN209998821U (en) * | 2019-05-09 | 2020-01-31 | 青岛永基重型机床有限公司 | Cutter head replacing device of numerical control dragon machine tool |
| CN210863410U (en) * | 2019-08-14 | 2020-06-26 | 天津市东丽区建筑工程试验室 | Reinforcing bar bending test device |
| CN110926960A (en) * | 2019-11-27 | 2020-03-27 | 常德鑫睿新材料有限公司 | Non ferrous metal alloy material testing machine for bending strength |
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Effective date of registration: 20240130 Address after: 443000 Xiannu Road, Xiannu Industrial Park, Economic Development Zone, Xiannu Town, Zhijiang City, Yichang City, Hubei Province Applicant after: Hubei Panrui Testing Technology Co.,Ltd. Country or region after: China Address before: No.144 Huayuan Road, Jinshui District, Zhengzhou City, Henan Province, 450000 Applicant before: Lu Wei Country or region before: China |
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