CN113092235A - High-precision concrete flexural strength testing machine - Google Patents
High-precision concrete flexural strength testing machine Download PDFInfo
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- CN113092235A CN113092235A CN202110332548.6A CN202110332548A CN113092235A CN 113092235 A CN113092235 A CN 113092235A CN 202110332548 A CN202110332548 A CN 202110332548A CN 113092235 A CN113092235 A CN 113092235A
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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
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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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Abstract
The application relates to a high-precision concrete flexural strength testing machine, belonging to the technical field of concrete experimental equipment, it includes the support, add pressure head and cylinder, the vertical setting of cylinder, the cylinder outside is provided with the proof box, cylinder piston rod and add pressure head fixed connection, cylinder body one end and proof box top inner wall fixed connection, the support is fixed in on the proof box bottom inner wall, the support is provided with two and is parallel to each other, the horizontal projection of adding pressure head is located the mid point of adjacent support central connection line, the proof box lateral wall is provided with the chamber door, be fixed with cooling tube and temperature-sensing ware on the proof box inner wall, cooling tube one end runs through behind the proof box intercommunication has the water pump, the inside heating rod that is provided with of cooling tube, be fixed with on the proof box outer wall with the water pump, the control cabinet that temperature sensor and heating rod cooperation were used, this application has.
Description
Technical Field
The application relates to the technical field of concrete experimental equipment, in particular to a high-precision concrete flexural strength testing machine.
Background
At present, a concrete flexural strength tester is a physical property testing instrument used in the field of civil and architectural engineering.
The existing Chinese patent with reference to the publication number CN210775072U discloses a concrete bending resistance testing machine, which comprises a frame, wherein a test bed is arranged on the frame, a pair of supporting seats are arranged on the test bed side by side, a scraper is arranged on the test bed, the scraper is positioned between the pair of supporting seats, and two sides of the scraper are butted and horizontally connected with the inner side walls of the supporting seats in a sliding manner; the dorsal part of test bench is provided with the support frame, and the vertical driving tube that is provided with on the support frame to the lower extreme of driving tube is crooked towards the direction of scraper blade, and sliding connection is elastic actuating lever in the driving tube, and the lower extreme of actuating lever is fixed in the dorsal part of scraper blade, and the front side of test bench is provided with upper end open-ended containing box.
When the concrete test piece is detected, the test piece needs to be geometrically centered, the surface of the test piece is cleaned before the test piece begins to be detected, and after the test piece is taken out of a maintenance place, the test is carried out as soon as possible, so that the influence of the environment on a detection result is reduced.
In view of the above-mentioned related technologies, the inventor thinks that taking out the test piece from the maintenance environment for detection has a defect of inaccurate experimental precision.
Disclosure of Invention
In order to reach the effect that promotes the experiment precision, this application provides a high accuracy concrete flexural strength testing machine.
The application provides a pair of high accuracy concrete flexural strength testing machine adopts following technical scheme:
the utility model provides a high accuracy concrete bending strength testing machine, which comprises a support, add pressure head and cylinder, the vertical setting of cylinder, the cylinder outside is provided with the proof box, cylinder piston rod and add pressure head fixed connection, cylinder body one end and proof box top inner wall fixed connection, the support is fixed in on the inner wall of proof box bottom, the support is provided with two and is parallel to each other, the horizontal projection of adding pressure head is located the mid point of adjacent support central line, the proof box lateral wall is provided with the chamber door, be fixed with cooling tube and temperature-sensing ware on the proof box inner wall, the intercommunication has the water pump behind the cooling tube one end run through the proof box, the inside heating rod that is provided with of cooling tube, be fixed with on the proof box outer wall with the water pump, temperature sensor.
Through adopting above-mentioned technical scheme, open the chamber door, the concrete test piece that will just take out from the maintenance environment is put at two support tops, adjustment concrete test piece position, make it placed in the middle, close the chamber door, give the control cabinet through the temperature sensor temperature transfer in with the proof box, control cabinet control heating rod starts, the simultaneous control water pump is to sending water in the radiator pipe, the heating rod is to the water heating, thereby adjust the temperature in the proof box, make the temperature in the proof box the same with the temperature of concrete test piece maintenance environment, it will add the pressure head butt at the concrete test piece top to start the cylinder, and continuously pressurize, thereby carry out the anti detection of rolling over to the concrete test piece, realize reducing the influence of environmental factor to the concrete test piece, reach the effect that promotes the experiment precision.
Optionally, be provided with humidity transducer and atomizer in the proof box, humidity transducer and proof box inner wall fixed connection just are connected with the control cabinet electricity, and atomizer and cooling tube are located one end intercommunication in the proof box.
Through adopting above-mentioned technical scheme, environmental factor not only has the temperature, and humidity in addition through the humidity in the humidity transducer response test case to control cabinet transmission model, opening of control cabinet control water pump, thereby make the water in the radiator pipe from the atomizer blowout, realize the control to humidity in the test case.
Optionally, the fixed pad platform that is provided with of proof box bottom inner wall, the support is fixed in pad bench top, the pad bench is provided with locating component, locating component includes the locating plate, sliding plate and limiting plate, limiting plate one end and sliding plate one end fixed connection, limiting plate and sliding plate set up perpendicularly, the limiting plate is provided with two, sliding plate bottom surface and pad bench top butt, the relative lateral wall of two limiting plates and the vertical lateral wall butt that the pad platform carried on the back mutually, sliding plate top surface and locating plate fixed connection, the vertical setting of locating plate, proof box inner wall level is fixed with the motor, the axis of rotation fixedly connected with lead screw of motor, the lead screw runs through two locating component, the lead screw mid point is located between two locating component, the screw.
Through adopting above-mentioned technical scheme, it is spacing to the removal of sliding plate to fill up two limiting plates of platform cooperation, and motor cooperation lead screw provides power to the removal of sliding plate, and two locating plates are fixed a position between two parties to placing the concrete test piece at the support top, replace artifical naked eye to transfer in the concrete test piece, have further promoted experimental precision.
Optionally, the lead screw penetrates through the positioning assembly and is located at the midpoint of the sliding plate, and the two limiting plates are symmetrically arranged on the sliding plate, that is, the lead screw penetrates through the two supports; be provided with the centre gripping subassembly between two locating plates, the centre gripping subassembly includes blend stop and pull wire, and the blend stop is located between two locating plates, and blend stop vertical location board sets up, and the blend stop tip runs through the locating plate that is close to, and blend stop horizontal slip along perpendicular lead screw direction relative positioning plate, pull wire one end and blend stop tip fixed connection, the other end and lead screw hook are connected, and the centre gripping subassembly is provided with two, and two centre gripping subassemblies use the lead screw to set up as symmetry axis symmetry.
Through adopting above-mentioned technical scheme, place behind two support tops when the concrete sample, two locating plates are only an orientation to the positioning of concrete sample, on the horizontal plane, slide when another orientation is through two blend stops and fix a position, the setting of pull wire, make full use of the lead screw provides power for the slip of blend stop, two vertically horizontal directions carry out the positioning to the concrete sample simultaneously and are placed in the middle, reach the effect that promotes the experiment precision.
Optionally, the number of the traction lines in each clamping assembly is two, and the two traction lines are symmetrically distributed at two ends of the barrier strip by taking the middle point of the barrier strip as a symmetric point.
Through adopting above-mentioned technical scheme, the setting of two pull wires makes the slip of blend stop more smooth and easy, and the atress is more even.
Optionally, the positioning plates are provided with strip holes, the strip holes are horizontally formed, the number of the strip holes formed corresponds to the number of the two positioning plates, namely four strip holes are formed, and the four strip holes are all located on the same horizontal plane.
By adopting the technical scheme, because the two traction wires are arranged on one barrier strip, the barrier strip is uniformly stressed, the long strip holes are formed, the sliding of the barrier strip relative to the positioning plate can be met, the movement of the positioning plate relative to the barrier strip is also met, and the structure is simple and easy to implement.
Optionally, each strip hole is internally provided with a spring, the springs are horizontally arranged and located between the two barrier strips, one end of each spring is abutted against the vertical side wall of each barrier strip, and the other end of each spring is fixedly connected with the wall of each strip hole.
Through adopting above-mentioned technical scheme, when two blend stops removed to the direction that is close to each other, the pull wire rolling was on the lead screw, and the spring is compressed, and after finishing detecting the concrete sample, the gyration lead screw, the pull wire is put outward from the lead screw, and the spring kick-backs to make pull wire cooperation lead screw gyration, reset, reach the effect that resets, be convenient for next time detect experimental going on.
Optionally, every all the ring cover has novel telescopic link outside the spring, novel telescopic link one end and rectangular hole pore wall fixed connection, the other end and the vertical lateral wall butt of blend stop.
Through adopting above-mentioned technical scheme, novel telescopic link is the scalable hollow cylinder pole that adopts metal strip or plastic sheet system of rolling up to form, plays the guide effect to the spring, plays the guard action to the spring simultaneously, avoids concrete test piece to press the back disconnected, and the normal work of spring has been guaranteed to the concrete block calliper that splashes out on the spring.
Optionally, a through hole is formed in the lead screw, a hook is fixedly arranged at one end, close to the lead screw, of the traction wire, and the hook is connected with the through hole in an articulated mode.
Through adopting above-mentioned technical scheme, the seting up of couple and through-hole is convenient for be connected and is dismantled of pull wire and lead screw, convenient to detach when equipment does not use or maintains.
Optionally, the through holes are provided in a plurality, and the positions of the through holes are arranged corresponding to the specifications of the concrete test piece.
Through adopting above-mentioned technical scheme, the test piece specification is different, corresponds the time of different specifications, and the through-hole position is different, can correspond different times and carry out the adaptability adjustment, has promoted the convenience in use of this application.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the control console is matched with the temperature sensor, the radiating pipe, the water pump and the heating rod, so that the temperature in the test box is regulated to be the same as the curing environment of the concrete cement test piece, the influence of environmental change on the concrete test piece is reduced, and the effect of improving the experimental precision is achieved;
2. the humidity sensor and the atomizing nozzle are arranged to control the humidity in the test box, so that the influence of environmental change on the concrete test piece is reduced, and the effect of improving the experimental precision is achieved;
3. the setting of locating component and centre gripping subassembly replaces artifical naked eye adjustment concrete sample's position, reaches the effect that promotes the experiment precision.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;
FIG. 3 is a sectional view showing a part of the structure of a spring;
fig. 4 is a sectional view of a portion of the radiating pipe at the position of the heating rod.
In the figure, 1, test chamber; 11. a support; 12. a pressurizing head; 13. a cylinder; 14. a cushion table; 2. a console; 21. a temperature sensor; 22. a humidity sensor; 3. a radiating pipe; 31. a heating rod; 32. an atomizing spray head; 4. a positioning assembly; 41. positioning a plate; 42. a sliding plate; 43. a limiting plate; 5. a motor; 51. a lead screw; 511. a through hole; 6. a clamping assembly; 61. blocking strips; 62. a pull wire; 621. hooking; 7. a strip hole; 71. a spring; 72. a novel telescopic rod; 8. and (4) a water pump.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses high accuracy concrete flexural strength testing machine.
Referring to fig. 1, a high accuracy concrete flexural strength testing machine includes proof box 1, and the chamber door has been seted up to 1 self lateral wall of proof box, and 1 other control cabinet 2 that is provided with of proof box is used for the detection to the concrete sample in the proof box 1, and control cabinet 2 is used for controlling temperature and humidity in the proof box 1 to reach and reduce the influence of environmental change to the concrete sample, promote the effect of experiment precision.
Referring to fig. 1, test box 1 internal fixation has pad platform 14, and pad platform 14 is the rectangle form, and pad platform 14 is located test box 1 bottom, and pad platform 14 top is fixed with support 11, and support 11 is rectangular form, and support 11 top is the arc top surface, and support 11 length is longer 10mm than concrete sample width at least, and support 11 is provided with two, adjacent test piece parallel arrangement. The top of the support 11 is used for bearing a concrete sample.
Referring to fig. 1, it is provided with locating component 4 to slide on cushion table 14, locating component 4 includes locating plate 41, sliding plate 42 and limiting plate 43 are rectangular long strip, sliding plate 42 level sets up, sliding plate 42 bottom surface and the 14 top surface butt of cushion table, the vertical setting of limiting plate 43, limiting plate 43 top and sliding plate 42 one end fixed connection, the vertical lateral wall butt of limiting plate 43 and the 14 vertical lateral wall butt of cushion table, in same locating component 4, limiting plate 43 is provided with two, and symmetric distribution is on sliding plate 42, the vertical setting of locating plate 41, locating plate 41 bottom surface and sliding plate 42 top surface fixed connection. Locating component 4 is provided with two, two supports 11 are located between two locating component 4, be provided with lead screw 51 between two locating component 4, the fixed motor 5 that is provided with on the 1 inner wall of proof box, the level of motor 5 sets up, the output shaft of motor 5 and lead screw 51 one end fixed connection, lead screw 51 level sets up, lead screw 51 keeps away from motor 5 one end and runs through two sliding plates 42 and two supports 11, the position of two supports 11 line midpoints is the mid point of lead screw 51 promptly, the screw thread of lead screw 51 mid point both sides is revolved to opposite, lead screw 51 does not produce screw-thread fit with support 11, lead screw 51 and sliding plate 42 screw-thread fit. The screw shaft 51 penetrates the slide plate 42 and is located at the center of the slide plate 42 in the longitudinal direction. Starting motor 5, motor 5 drive lead screw 51 to make two locating plates 41 to being close to each other or keeping away from the direction and removing simultaneously, will place the concrete sample between two locating plates 41 and fix a position placed in the middle, reach the effect that promotes the experiment precision.
Referring to fig. 1 and 2, a clamping assembly 6 is disposed between the two positioning plates 41, and the clamping assembly 6 includes a bar 61 and a pull wire 62. The locating plate 41 is provided with the strip holes 7, the strip holes 7 are horizontally arranged, the strip holes 7 are located on the same horizontal plane, the strip holes 7 on the same locating plate 41 are provided with two strips, an interval exists between the two strip holes 7, and the two strip holes 7 are symmetrically arranged by taking the screw 51 as a symmetry axis. The blend stop 61 is rectangular long strip shape, blend stop 61 one end runs through rectangular hole 7 that is close to, blend stop 61 is close to the lateral wall and the 7 pore wall butt in rectangular hole 7 of rectangular hole 7, blend stop 61 is on a parallel with the setting of lead screw 51, the end fixed connection after rectangular hole 7 is run through with blend stop 61 to 62 one end of pull wire, other end fixedly connected with couple 621, through-hole 511 has been seted up on the lead screw 51, through-hole 511 is located lead screw 51 and is close to 1 inner wall department of proof box, couple 621 is connected with the through-hole 511 hook, pull wire 62 and couple 621 correspond blend stop 61 tip and are provided with two on the same root blend stop 61, 6 quantity of centre gripping subassembly correspond rectangular hole 7 and set up quantity and are provided with. Two locating plates 41 carry out the positioning to one direction of concrete sample, and two blend stops 61 carry out the positioning to another direction of concrete sample, and the direction of positioning is located same horizontal plane and mutually perpendicular, makes the better centering of concrete sample.
Referring to fig. 1 and 2, the plurality of through holes 511 are formed, so that the moving distance of the positioning plate 41 is different from the moving distance of the barrier strip 61, and the effect of adapting to concrete samples of different specifications is achieved.
Referring to fig. 1 and 3, be provided with spring 71 between blend stop 61 and the locating plate 41, spring 71 is located rectangular hole 7, spring 71 is located blend stop 61 and is close to concrete sample one side, spring 71 one end and rectangular hole 7 pore wall fixed connection, the other end and blend stop 61 butt, spring 71 outer loop cover has novel telescopic link 72, novel telescopic link 72 one end and rectangular hole 7 pore wall fixed connection, the other end and blend stop 61 outer wall butt, novel telescopic link 72 plays the effect of direction and location to spring 71, make blend stop 61 compressed in order when positioning concrete sample, positioning finishes when concrete sample, spring 71 releases resilience force, make blend stop 61 reset. The number of the springs 71 and the novel telescopic rods 72 is four corresponding to the number of the strip holes 7.
Referring to fig. 1, be provided with cylinder 13 in the proof box 1, cylinder 13 vertical setting, cylinder 13 body one end and 1 top inner wall fixed connection of proof box, 13 cylinder 13 piston rod one end fixed connection have add pressure head 12, the horizontal projection that adds pressure head 12 is located the center department of two support 11 lines. After the concrete test piece is placed at the top of the support 11 in a centering mode, the air cylinder 13 is started, the air cylinder 13 pushes the pressurizing head 12 to continuously carry out pressure test on the concrete test piece, pressure data are transmitted to the control console 2, and the test is completed until the concrete test piece is broken.
Referring to fig. 1 and 4, be fixed with cooling tube 3 on the 1 inner wall of proof box, cooling tube 3 internal fixation has the heating pipe, and the tip intercommunication that cooling tube 3 is located proof box 1 has atomizer 32, and the 3 other ends of cooling tube run through proof box 1 back intercommunication has water pump 8, and water pump 8 is located proof box 1 outside promptly. Be fixed with temperature sensor 21 and humidity transducer 22 on the 1 inner wall of proof box, the temperature in temperature sensor 21 induction test box 1, signal transmission with the temperature is for control cabinet 2, as long as the temperature of temperature and concrete test piece maintenance environment is different in proof box 1, control cabinet 2 just controls the start of water pump 8 and washes by water in the cooling tube 3, and control heating rod 31 heats water, through the temperature in hot water or cold water control test box 1, humidity transducer 22 feels the humidity in the proof box 1, give control cabinet 2 with the signal transmission of humidity, as long as humidity is different with the humidity of concrete test piece maintenance environment in proof box 1, control cabinet 2 controls water pump 8 and starts, thereby make atomizer 32 blowout water smoke, reach the effect of humidity in the regulation proof box 1.
The implementation principle of the high-precision concrete flexural strength testing machine in the embodiment of the application is as follows: the temperature sensor 21 and the humidity sensor 22 detect the temperature and the humidity in the test box 1 and send adjusting signals to the control console 2, the control console 2 controls the water pump 8 to start to inject water into the radiating pipe 3, the temperature is controlled by cold water or starting the heating rod 31 to become hot water, the control console 2 starts the water pump 8 to enable the water in the radiating pipe 3 to be sprayed out through the atomizing nozzle 32, the humidity in the test box 1 is adjusted, the temperature and the humidity are adjusted to be the same as the temperature and the humidity of the concrete test piece curing environment, the concrete curing test piece is taken out and placed into the test box 1, the concrete test piece is placed on the support 11, the motor 5 is started, the lead screw 51 drives the positioning component 4 and the clamping component 6 to move simultaneously to perform centered positioning on the concrete test piece, the air cylinder 13 is started to enable the pressurizing head 12 to abut against the top of the concrete test piece after the position adjustment is completed, the air cylinder 13 continuously pressurizes and transmits, and the experiment is completed until the concrete test piece is broken, so that the effect of improving the experiment precision is achieved.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a high accuracy concrete flexural strength testing machine, includes support (11), adds pressure head (12) and cylinder (13), its characterized in that: the air cylinder (13) is vertically arranged, the test box (1) is arranged outside the air cylinder (13), a piston rod of the air cylinder (13) is fixedly connected with the pressurizing head (12), one end of the body of the air cylinder (13) is fixedly connected with the inner wall of the top of the test box (1), the support (11) is fixed on the inner wall of the bottom of the test box (1), the support (11) is provided with two parts which are parallel to each other, the horizontal projection of the pressurizing head (12) is positioned on the middle point of the central connecting line of the adjacent support (11), the side wall of the test box (1) is provided with a box door, the inner wall of the test box (1) is fixed with the radiating pipe (3) and a temperature sensor, one end of the radiating pipe (3) penetrates through the test box (1) and then is, a control console (2) matched with the water pump (8), the temperature sensor (21) and the heating rod (31) for use is fixed on the outer wall of the test box (1).
2. The high-precision concrete flexural strength tester according to claim 1, characterized in that: be provided with humidity transducer (22) and atomizer (32) in proof box (1), humidity transducer (22) and proof box (1) inner wall fixed connection just are connected with control cabinet (2) electricity, and atomizer (32) and cooling tube (3) are located one end intercommunication in proof box (1).
3. The high-precision concrete flexural strength tester according to claim 1, characterized in that: the inner wall of the bottom of the test box (1) is fixedly provided with a cushion table (14), a support (11) is fixed at the top of the cushion table (14), the cushion table (14) is provided with positioning components (4), each positioning component (4) comprises a positioning plate (41), a sliding plate (42) and a limiting plate (43), one end of each limiting plate (43) is fixedly connected with one end of each sliding plate (42), the limiting plates (43) and the sliding plates (42) are vertically arranged, the two limiting plates (43) are arranged, the bottom surface of each sliding plate (42) is abutted against the top of the cushion table (14), the opposite side walls of the two limiting plates (43) are abutted against the vertical side walls of the back of the cushion table (14), the top surface of each sliding plate (42) is fixedly connected with the positioning plates (41), the positioning plates (41) are vertically arranged, the inner wall of the test box (1) is horizontally fixed with a motor (5), the rotating shaft, the middle point of the lead screw (51) is positioned between the two positioning assemblies (4), and the thread directions of the two sides of the middle point of the lead screw (51) are opposite.
4. The high-precision concrete flexural strength tester according to claim 3, characterized in that: the lead screw (51) penetrates through the positioning assembly (4) and is positioned at the midpoint of the sliding plate (42), and the two limiting plates (43) are symmetrically arranged on the sliding plate (42), namely the lead screw (51) penetrates through the two supports (11); be provided with centre gripping subassembly (6) between two locating plates (41), centre gripping subassembly (6) are including blend stop (61) and pull wire (62), blend stop (61) are located between two locating plates (41), blend stop (61) vertical location board (41) set up, blend stop (61) tip runs through locating plate (41) that are close to, blend stop (61) relative location board (41) are along perpendicular lead screw (51) direction horizontal slip, pull wire (62) one end and blend stop (61) tip fixed connection, the other end is connected with lead screw (51) hook, centre gripping subassembly (6) are provided with two, two centre gripping subassemblies (6) use lead screw (51) to set up as symmetry axis symmetry.
5. The high-precision concrete flexural strength tester according to claim 4, characterized in that: the number of the traction lines (62) in each clamping assembly (6) is two, and the two traction lines (62) are symmetrically distributed at two ends of the barrier strip (61) by taking the middle point of the barrier strip (61) as a symmetrical point.
6. The high-precision concrete flexural strength tester according to claim 5, characterized in that: the positioning plates (41) are provided with strip holes (7), the strip holes (7) are horizontally arranged, the strip holes (7) are arranged in a number corresponding to the number of the two positioning plates (41), namely, the strip holes (7) are arranged in four, and the four strip holes (7) are all located on the same horizontal plane.
7. The high-precision concrete flexural strength tester according to claim 6, characterized in that: every all be provided with spring (71) in rectangular hole (7), spring (71) level sets up, and spring (71) are located between two blend stops (61), and spring (71) one end and the vertical lateral wall butt of blend stop (61), the other end and rectangular hole (7) pore wall fixed connection.
8. The high-precision concrete flexural strength tester according to claim 7, characterized in that: every spring (71) all the ring cover has novel telescopic link (72) outward, novel telescopic link (72) one end and rectangular hole (7) pore wall fixed connection, the other end and the vertical lateral wall butt of blend stop (61).
9. The high-precision concrete flexural strength tester according to claim 5, characterized in that: a through hole (511) is formed in the lead screw (51), a hook (621) is fixedly arranged at one end, close to the lead screw (51), of the traction line (62), and the hook (621) is connected with the through hole (511) in a hanging mode.
10. The high-precision concrete flexural strength tester according to claim 9, characterized in that: the through holes (511) are formed in multiple numbers, and the positions of the through holes (511) are arranged corresponding to the specifications of the concrete test piece.
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| CN202110332548.6A CN113092235B (en) | 2021-03-29 | 2021-03-29 | High-precision concrete flexural strength testing machine |
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| CN202110332548.6A CN113092235B (en) | 2021-03-29 | 2021-03-29 | High-precision concrete flexural strength testing machine |
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| CN114112682A (en) * | 2021-12-21 | 2022-03-01 | 国网北京市电力公司 | Transformer substation concrete test block detection device and method based on BIM model |
| CN114839084A (en) * | 2022-07-04 | 2022-08-02 | 烟台华虹建筑科技有限公司 | Anti check out test set that buckles of building engineering material |
| CN115575252A (en) * | 2022-09-30 | 2023-01-06 | 汇通路桥集团试验检测有限公司 | Anti check out test set that buckles |
| CN116907973A (en) * | 2023-09-06 | 2023-10-20 | 山东华宝环保新材料有限公司 | Cement test block compression test device |
| CN117288594A (en) * | 2023-11-24 | 2023-12-26 | 天津市堃淏混凝土有限公司 | Concrete flexural testing machine and method thereof |
| CN117451535A (en) * | 2023-12-21 | 2024-01-26 | 深圳市旭仓科技有限公司 | Concrete quality detection device for hydraulic engineering |
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