CN113092235B - High-precision concrete flexural strength testing machine - Google Patents
High-precision concrete flexural strength testing machine Download PDFInfo
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- CN113092235B CN113092235B CN202110332548.6A CN202110332548A CN113092235B CN 113092235 B CN113092235 B CN 113092235B CN 202110332548 A CN202110332548 A CN 202110332548A CN 113092235 B CN113092235 B CN 113092235B
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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
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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 accuracy concrete flexural strength testing machine belongs to the technical field of concrete experimental facilities, and it includes support, pressurization head and cylinder, the vertical setting of cylinder, the cylinder outside is provided with the test box, cylinder piston rod and pressurization head fixed connection, cylinder body one end and test box top inner wall fixed connection, the support is fixed in on the test box bottom inner wall, the support is provided with two and is parallel to each other, the horizontal projection of pressurization head is located adjacent support center line's midpoint, the test box lateral wall is provided with the chamber door, be fixed with cooling tube and temperature-sensing ware on the test box inner wall, the intercommunication has the water pump behind the cooling tube one end runs through the test box, the inside heating rod that is provided with of cooling tube, be fixed with on the test box outer wall with the control cabinet that water pump, temperature-sensing ware and heating rod cooperation were used, this application has the effect that promotes experimental accuracy.
Description
Technical Field
The application relates to the technical field of concrete experimental facilities, in particular to a high-precision concrete flexural strength testing machine.
Background
The prior concrete flexural strength testing machine is a physical property testing instrument used in the field of civil engineering and construction engineering.
The prior Chinese patent with reference to publication number CN210775072U discloses a concrete bending test 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 scraping plate is arranged on the test bed, the scraping plate is positioned between the pair of supporting seats, and two sides of the scraping plate are in contact with and horizontally and slidably connected with the inner side walls of the supporting seats; the rear side of test bench is provided with the support frame, vertically is provided with the drive pipe on the support frame to the lower extreme of drive pipe is crooked towards the direction of scraper blade, and sliding connection has elastic actuating lever in the drive pipe, and the lower extreme of actuating lever is fixed in the rear side of scraper blade, and the front side of test bench is provided with upper end open-ended containing box.
The concrete test piece is required to be geometrically centered when being detected, the surface of the test piece is cleaned up before the test piece starts to be detected, and the test is carried out as soon as possible after the test piece is taken out of a curing place, so that the influence of the environment on the detection result is reduced.
In view of the above-mentioned related art, the inventors consider that the test piece is taken out and the maintenance environment is detected, and that there is a defect of inaccurate experimental precision.
Disclosure of Invention
In order to achieve the effect of improving experimental accuracy, the application provides a high-accuracy concrete flexural strength testing machine.
The application provides a high accuracy concrete flexural strength testing machine adopts following technical scheme:
the utility model provides a high accuracy concrete flexural strength testing machine, includes support, pressurization head and cylinder, the cylinder is vertical to be set up, the cylinder outside is provided with the test box, cylinder piston rod and pressurization head fixed connection, cylinder body one end and test box top inner wall fixed connection, the support is fixed in on the inner wall of test box bottom, the support is provided with two and is parallel to each other, the horizontal projection of pressurization head is located adjacent support center line's midpoint, the test box lateral wall is provided with the chamber door, be fixed with cooling tube and temperature-sensing ware on the test box inner wall, the intercommunication has the water pump behind the cooling tube one end runs through the test box, the inside heating rod that is provided with of cooling tube, be fixed with on the test box outer wall with water pump, temperature sensor and the control cabinet that the heating rod cooperation was used.
Through adopting above-mentioned technical scheme, open the chamber door, place the concrete test piece that just took out from the maintenance environment at two support tops, adjust concrete test piece position, make it center, close the chamber door, transfer the temperature in the test box for the control cabinet through temperature sensor, the control cabinet control heating rod starts, simultaneously control the water pump and send water in the cooling tube, the heating rod heats water, thereby adjust the temperature in the test box, the temperature in the test box is the same with the temperature of concrete test piece maintenance environment, the starting cylinder will add the pressure head butt at concrete test piece top, and last the pressurization, thereby carry out anti detection of rolling over to the concrete test piece, realize reducing environmental factor to the influence of concrete test piece, reach the effect that promotes experimental accuracy.
Optionally, be provided with humidity transducer and atomizer in the test chamber, humidity transducer and test chamber inner wall fixed connection and be connected with the control cabinet electricity, atomizer and cooling tube are located the one end intercommunication of test chamber.
Through adopting above-mentioned technical scheme, environmental factor not only has the temperature, still humidity, through humidity transducer response test box interior humidity to control panel transmission model, control panel control water pump's opening, thereby make the water in the cooling tube follow atomizer blowout, realize the control to the interior humidity of test box.
Optionally, the fixed pad platform that is provided with of test box bottom inner wall, the support is fixed in pad bench top, be provided with locating component on the pad bench, locating component includes 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 vertical lateral wall butt that two limiting plates are relative with pad bench is opposite, sliding plate top surface and locating plate fixed connection, the vertical setting of locating plate, the test 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 midpoint is located between two locating component, the screw thread of lead screw midpoint both sides revolves to opposite.
Through adopting above-mentioned technical scheme, fill up the platform and cooperate two limiting plates to carry out spacingly to the removal of sliding plate, and motor cooperation lead screw provides power to the removal of sliding plate, and two locating plates are placed the concrete test piece at the support top and are fixed a position in the middle, replace artifical naked eye to transfer the concrete test piece in, have further promoted experimental precision.
Optionally, the lead screw penetrating through the positioning component is positioned at the midpoint of the sliding plate, and the two limiting plates are symmetrically arranged on the sliding plate, namely the lead screw penetrates through the two supports; be provided with clamping assembly between two locating plates, clamping assembly includes blend stop and pull wire, and the blend stop is located between two locating plates, and blend stop vertical positioning board sets up, and the blend stop tip runs through the locating plate that is close to, and the relative locating plate of blend stop is along vertical lead screw direction horizontal slip, pull wire one end and blend stop tip fixed connection, and the other end is connected with the lead screw hook, and clamping assembly is provided with two, and two clamping assembly 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 just a direction to the accent position of concrete sample, slide in the horizontal plane through two blend stops in another direction and fix a position, the setting of haulage line, make full use of the lead screw, provide power for the slip of blend stop, two vertically horizontal directions are put in the middle to the accent position of concrete sample simultaneously, reach the effect that promotes experimental accuracy.
Optionally, two traction wires are arranged in each clamping assembly, and the two traction wires are symmetrically distributed at two ends of the barrier strip by taking the midpoint of the barrier strip as a symmetrical 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 locating plates are provided with long strip holes, the long strip holes are horizontally arranged, the number of the long strip holes corresponds to the number of the two locating plates, namely, four long strip holes are arranged, and the four long strip holes are all located on the same horizontal plane.
Through adopting above-mentioned technical scheme, because the pull wire is provided with two on the blend stop, makes blend stop atress even, so set up rectangular hole and can satisfy the slip of blend stop relative positioning plate, also satisfy the removal of the relative blend stop of positioning plate simultaneously, simple structure easily implements.
Optionally, each strip hole is internally provided with a spring, the spring is horizontally arranged, the spring is positioned between the two barrier strips, one end of the spring is abutted against the vertical side wall of the barrier strip, and the other end of the spring is fixedly connected with the wall of the strip hole.
Through adopting above-mentioned technical scheme, when two blend stops move to the direction that is close to each other, the traction wire rolling is on the lead screw, and the spring is compressed, when finishing the back to the concrete sample detection, gyration lead screw, the traction wire is put outward from the lead screw, and the spring is kick-backed to make traction wire cooperation lead screw gyration, reset, reach the effect that resets, be convenient for go on of next detection test.
Optionally, every equal ring cover in the spring has novel telescopic link outward, 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 to roll up to form, plays the guide effect to the spring, plays the guard action simultaneously to the spring, avoids concrete test piece to press the fracture after, and the concrete piece calliper of splash is on the spring, has guaranteed the normal work of spring.
Optionally, a through hole is formed in the screw, a hook is fixedly arranged at one end, close to the screw, of the traction wire, and the hook is connected with the through hole in a hanging mode.
Through adopting above-mentioned technical scheme, the seting up of couple and through-hole is convenient for pull wire and lead screw be connected and dismantle, convenient to detach when equipment does not use or maintenance.
Optionally, a plurality of through holes are formed, and the through holes are formed at positions corresponding to the specification of the concrete test piece.
Through adopting above-mentioned technical scheme, test piece specification is different, corresponds the time of different specifications, and the through-hole position is different, can correspond different time and carry out adaptability adjustment, has promoted the convenience of 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 and controlled to be the same as the maintenance 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 a concrete test piece is reduced, and the effect of improving the experimental precision is achieved;
3. the setting of locating component and clamping component replaces artifical naked eye adjustment concrete test piece's position, reaches the effect that promotes experimental accuracy.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
FIG. 3 is a cross-sectional view showing a part of the structure at the spring;
fig. 4 is a sectional view showing a partial radiating pipe at a heating rod.
In the figure, 1, a test box; 11. a support; 12. a pressurizing head; 13. a cylinder; 14. a pad table; 2. a console; 21. a temperature sensor; 22. a humidity sensor; 3. a heat radiating pipe; 31. a heating rod; 32. an atomizing nozzle; 4. a positioning assembly; 41. a positioning plate; 42. a sliding plate; 43. a limiting plate; 5. a motor; 51. a screw rod; 511. a through hole; 6. a clamping assembly; 61. a barrier strip; 62. a traction wire; 621. a hook; 7. a slit hole; 71. a spring; 72. a novel telescopic rod; 8. and (3) a water pump.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a high-precision concrete flexural strength testing machine.
Referring to fig. 1, a high-precision concrete flexural strength testing machine comprises a testing box 1, a box door is arranged on the side wall of the testing box 1, a control console 2 is arranged beside the testing box 1, the testing box 1 is internally used for detecting a concrete test piece, the control console 2 is used for controlling the temperature and the humidity in the testing box 1, and therefore the effects of reducing the influence of environmental changes on the concrete test piece and improving the experimental precision are achieved.
Referring to fig. 1, a pad 14 is fixed in a test box 1, the pad 14 is rectangular, the pad 14 is located at the bottom of the test box 1, a support 11 is fixed at the top of the pad 14, the support 11 is long, the top of the support 11 is an arc-shaped top surface, the length of the support 11 is at least 10mm longer than the width of a concrete test piece, two supports 11 are arranged, and adjacent test pieces are arranged in parallel. The top of the support 11 is used for bearing a concrete test piece.
Referring to fig. 1, a positioning assembly 4 is slidably arranged on a pad stand 14, the positioning assembly 4 comprises a positioning plate 41, a sliding plate 42 and a limiting plate 43, the sliding plate 42 and the limiting plate 43 are rectangular long strips, the sliding plate 42 is horizontally arranged, the bottom surface of the sliding plate 42 is abutted to the top surface of the pad stand 14, the limiting plate 43 is vertically arranged, the top end of the limiting plate 43 is fixedly connected with one end of the sliding plate 42, the vertical side wall of the limiting plate 43 is abutted to the vertical side wall of the pad stand 14, two limiting plates 43 are arranged in the same positioning assembly 4, and are symmetrically distributed on the sliding plate 42, the positioning plate 41 is vertically arranged, and the bottom surface of the positioning plate 41 is fixedly connected with the top surface of the sliding plate 42. The positioning assembly 4 is provided with two, two supports 11 are located between two positioning assembly 4, be provided with lead screw 51 between two positioning assembly 4, fixedly be provided with motor 5 on the inner wall of test chamber 1, motor 5 level sets up, motor 5's output shaft 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 wiring midpoints is the midpoint of lead screw 51 promptly, the screw threads of lead screw 51 midpoint both sides revolve to opposite, lead screw 51 does not produce screw fit with support 11, lead screw 51 and sliding plate 42 screw fit. The lead screw 51 penetrates the slide plate 42 and is located at the center of the slide plate 42 in the longitudinal direction. Starting the motor 5, the motor 5 drives the screw rod 51, so that the two positioning plates 41 move towards the direction of approaching or separating from each other simultaneously, and the concrete test piece placed between the two positioning plates 41 is centered for positioning, thereby achieving the effect of improving experimental precision.
Referring to fig. 1 and 2, a clamping assembly 6 is provided between the two positioning plates 41, the clamping assembly 6 comprising a stop bar 61 and a traction 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 all positioned on the same horizontal plane, the strip holes 7 on the same locating plate 41 are provided with two, a space exists between the two strip holes 7, and the two strip holes 7 are symmetrically arranged by taking the screw rod 51 as a symmetrical axis. The blend stop 61 is rectangular long strip, blend stop 61 one end runs through the rectangular hole 7 that is close to, blend stop 61 is close to the lateral wall and the rectangular hole 7 pore wall butt of rectangular hole 7, blend stop 61 is on a parallel with lead screw 51 setting, the tip fixed connection behind the blend stop 61 runs through rectangular hole 7, the 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 test box 1 inner wall department, couple 621 is connected with the through-hole 511 hook, traction wire 62 and couple 621 are provided with two corresponding blend stop 61 tip on the same blend stop 61, clamping assembly 6 quantity is provided with two sets of corresponding rectangular hole 7 quantity. The two locating plates 41 are used for locating one direction of the concrete test piece, the two baffle strips 61 are used for locating the other direction of the concrete test piece, and the locating directions are located on the same horizontal plane and are perpendicular to each other, so that the concrete test piece is better centered.
Referring to fig. 1 and 2, a 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, thereby achieving the effect of adapting to concrete test pieces of different specifications.
Referring to fig. 1 and 3, a spring 71 is disposed between the barrier strip 61 and the positioning plate 41, the spring 71 is located in the strip hole 7, the spring 71 is located on one side of the barrier strip 61 close to the concrete test piece, one end of the spring 71 is fixedly connected with the wall of the strip hole 7, the other end of the spring 71 is abutted against the barrier strip 61, a novel telescopic rod 72 is sleeved on the outer ring of the spring 71, one end of the novel telescopic rod 72 is fixedly connected with the wall of the strip hole 7, the other end of the novel telescopic rod 72 is abutted against the outer wall of the barrier strip 61, the novel telescopic rod 72 plays a role in guiding and positioning the spring 71, so that the barrier strip 61 is orderly compressed when the concrete test piece is aligned, and when the concrete test piece is aligned, the spring 71 releases resilience force, so that the barrier strip 61 is 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, a cylinder 13 is arranged in a test chamber 1, the cylinder 13 is vertically arranged, one end of a cylinder 13 body is fixedly connected with the inner wall of the top of the test chamber 1, one end of a piston rod of the cylinder 13 is fixedly connected with a pressurizing head 12, and the horizontal projection of the pressurizing head 12 is positioned at the center of a connecting line of two supports 11. After the concrete test piece is placed on the top of the support 11 in a centered manner, the air cylinder 13 is started, the air cylinder 13 pushes the pressurizing head 12 to continuously conduct pressure testing 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, a heat dissipation tube 3 is fixed on the inner wall of the test chamber 1, a heating tube is fixed in the heat dissipation tube 3, an atomization nozzle 32 is communicated with the end part of the heat dissipation tube 3 positioned in the test chamber 1, and a water pump 8 is communicated with the other end of the heat dissipation tube 3 after penetrating through the test chamber 1, namely, the water pump 8 is positioned outside the test chamber 1. The temperature sensor 21 and the humidity sensor 22 are fixed on the inner wall of the test box 1, the temperature sensor 21 senses the temperature in the test box 1, a signal of the temperature is transmitted to the control console 2, the control console 2 controls the water pump 8 to start flushing water in the radiating pipe 3 as long as the temperature in the test box 1 is different from the temperature of the concrete test piece curing environment, the heating rod 31 is controlled to heat water, the temperature in the test box 1 is controlled through hot water or cold water, the humidity sensor 22 senses the humidity in the test box 1, the signal of the humidity is transmitted to the control console 2, and the control console 2 controls the water pump 8 to start as long as the humidity in the test box 1 is different from the humidity of the concrete test piece curing environment, so that the atomizing spray head 32 sprays water mist, and the effect of adjusting the humidity in the test box 1 is achieved.
The implementation principle of the high-precision concrete flexural strength testing machine provided by 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 an adjusting signal to the control console 2, the control console 2 controls the water pump 8 to start water injection into the radiating pipe 3, the water in the radiating pipe 3 is sprayed out through the atomizing nozzle 32 by starting the water pump 8, 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 a concrete test piece curing environment, the concrete test piece is taken out and put into the test box 1, the concrete test piece is put on the support 11, the motor 5 is started, the screw rod 51 drives the positioning component 4 and the clamping component 6 to move simultaneously, the concrete test piece is centered, the cylinder 13 is started to enable the pressurizing head 12 to be abutted to the top of the concrete test piece after the position adjustment, the cylinder 13 is continuously pressurized and transmits data to the control console 2 until the concrete test piece is pressed off, the experiment is completed, and the effect of improving the experimental precision is achieved.
The embodiments of the present invention are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (3)
1. The utility model provides a high accuracy concrete flexural strength testing machine, includes support (11), pressurization head (12) and cylinder (13), its characterized in that: the air cylinder (13) is vertically arranged, a 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 a 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 two supports (11) 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 supports (11), the side wall of the test box (1) is provided with a box door, a radiating pipe (3) and a temperature sensor are fixed on the inner wall of the test box (1), a water pump (8) is communicated after one end of the radiating pipe (3) penetrates through the test box (1), a heating rod (31) is arranged inside the radiating pipe (3), and a control console (2) matched with the water pump (8), the temperature sensor (21) and the heating rod (31) is fixed on the outer wall of the test box (1). The device is characterized in that a pad table (14) is fixedly arranged on the inner wall of the bottom of the test box (1), a support (11) is fixed at the top of the pad table (14), a positioning assembly (4) is arranged on the pad table (14), the positioning assembly (4) comprises a positioning plate (41), a sliding plate (42) and a limiting plate (43), one end of the limiting plate (43) is fixedly connected with one end of the sliding plate (42), the limiting plate (43) and the sliding plate (42) are vertically arranged, two limiting plates (43) are arranged, the bottom surface of the sliding plate (42) is abutted to the top of the pad table (14), the opposite side walls of the two limiting plates (43) are abutted to the vertical side walls of the pad table (14), the top surface of the sliding plate (42) is fixedly connected with the positioning plate (41), the positioning plate (41) is vertically arranged, the inner wall of the test box (1) is horizontally fixedly provided with a motor (5), a screw (51) is fixedly connected with a rotating shaft of the motor (5), the screw (51) penetrates through the two positioning assemblies (4), the middle points of the screw (51) are located between the two positioning assemblies (4), and the screw threads on the two sides of the middle points of the screw (51) are opposite to each other; the lead screw (51) penetrates through the positioning assembly (4) and is positioned at the middle point 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); a clamping assembly (6) is arranged between the two positioning plates (41), the clamping assembly (6) comprises a baffle strip (61) and a traction wire (62), the baffle strip (61) is positioned between the two positioning plates (41), the baffle strip (61) is arranged perpendicular to the positioning plates (41), the end part of the baffle strip (61) penetrates through the positioning plates (41) which are close to each other, the baffle strip (61) horizontally slides along the direction of the perpendicular screw (51) relative to the positioning plates (41), one end of the traction wire (62) is fixedly connected with the end part of the baffle strip (61), the other end of the traction wire is hooked with the screw (51), the two clamping assemblies (6) are arranged, and the two clamping assemblies (6) are symmetrically arranged by taking the screw (51) as a symmetrical axis; the number of the traction wires (62) in each clamping assembly (6) is two, and the two traction wires (62) are symmetrically distributed at two ends of the barrier strip (61) by taking the midpoint of the barrier strip (61) as a symmetrical point; the positioning plates (41) are provided with strip holes (7), the strip holes (7) are horizontally arranged, the number of the strip holes (7) is corresponding to the number of the two positioning plates (41), namely, four strip holes (7) are arranged, and the four strip holes (7) are all positioned on the same horizontal plane; a spring (71) is arranged in each strip hole (7), the springs (71) are horizontally arranged, the springs (71) are positioned between the two baffle strips (61), one end of each spring (71) is abutted against the vertical side wall of each baffle strip (61), and the other end of each spring is fixedly connected with the wall of each strip hole (7); 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 wire (62), and the hook (621) is connected with the through hole (511) in a hanging mode; the through holes (511) are formed in a plurality, and the positions of the through holes (511) are arranged corresponding to the specification of the concrete test piece.
2. The high-precision concrete flexural strength testing machine as claimed in claim 1, wherein: the test box (1) is internally provided with a humidity sensor (22) and an atomization nozzle (32), the humidity sensor (22) is fixedly connected with the inner wall of the test box (1) and is electrically connected with the control console (2), and the atomization nozzle (32) is communicated with one end of the radiating pipe (3) located in the test box (1).
3. The high-precision concrete flexural strength testing machine as claimed in claim 1, wherein: every all the ring cover has novel telescopic link (72) outside spring (71), 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).
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN113092235B true CN113092235B (en) | 2023-07-04 |
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| CN114112682B (en) * | 2021-12-21 | 2023-11-14 | 国网北京市电力公司 | BIM model-based transformer substation concrete test block detection device and method |
| CN114839084B (en) * | 2022-07-04 | 2022-09-02 | 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 |
| CN116907973B (en) * | 2023-09-06 | 2023-12-08 | 山东华宝环保新材料有限公司 | Cement test block compression test device |
| CN117288594B (en) * | 2023-11-24 | 2024-03-26 | 天津市堃淏混凝土有限公司 | Concrete flexural testing machine and method thereof |
| CN117451535B (en) * | 2023-12-21 | 2024-03-08 | 深圳市旭仓科技有限公司 | Concrete quality detection device for hydraulic engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201653836U (en) * | 2010-05-07 | 2010-11-24 | 长安大学 | Concrete coarse aggregate interface bending intensity tester |
| JP2011237299A (en) * | 2010-05-11 | 2011-11-24 | Maeda Corp | Concrete testing device |
| CN107179234B (en) * | 2017-07-26 | 2019-06-07 | 广东丰业电力器材有限公司 | A kind of concrete Intensity of Breaking Tester |
| CN211825449U (en) * | 2020-01-11 | 2020-10-30 | 陕西隆生建材有限公司 | Concrete bending resistance testing machine |
| CN211825462U (en) * | 2020-01-13 | 2020-10-30 | 西安百固源混凝土有限公司 | Concrete compression testing machine |
| CN211668978U (en) * | 2020-01-13 | 2020-10-13 | 西安百固源混凝土有限公司 | Concrete bending resistance testing machine |
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