CN220289266U - Testing device for crack resistance of concrete - Google Patents
Testing device for crack resistance of concrete Download PDFInfo
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- CN220289266U CN220289266U CN202321964093.0U CN202321964093U CN220289266U CN 220289266 U CN220289266 U CN 220289266U CN 202321964093 U CN202321964093 U CN 202321964093U CN 220289266 U CN220289266 U CN 220289266U
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- concrete
- fixedly connected
- frame
- crack resistance
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 17
- 239000010935 stainless steel Substances 0.000 claims description 17
- 239000004677 Nylon Substances 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 16
- 229920001778 nylon Polymers 0.000 claims description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000012634 fragment Substances 0.000 description 19
- 238000004140 cleaning Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000007849 functional defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a testing device for the crack resistance of concrete, which comprises a steel main frame, wherein one side of the steel main frame is fixedly connected with a top frame, six groups of top hydraulic cylinders are arranged at the top of the top frame, the bottom of each top hydraulic cylinder is fixedly connected with a top pressing block, and the top of each bottom backing plate is provided with a bottom pressure position adjustable structure. This testing arrangement of concrete crack resistance ability is through being provided with bottom backing plate, locating screw, spill seat and positioning bolt, during the use, unscrews four sets of positioning bolt on the spill seat and takes out, and the spill seat can be along the displacement about the bottom backing plate, and multiunit locating screw provides sufficient adjustment space, drives in again positioning bolt after moving suitable position, and positioning bolt card is gone into the locating screw and can be locked the spill seat, has realized the function of being convenient for adjust below hydraulic pressure position, and the problem of the device not possessing the function of being convenient for adjust below hydraulic pressure position is solved.
Description
Technical Field
The utility model relates to the technical field of concrete testing devices, in particular to a testing device for the crack resistance of concrete.
Background
The crack resistance detection is an important environment for detecting the performance of the concrete, and the pressure-bearing crack resistance of the concrete is tested by synchronously pressurizing up and down, so that strength evaluation is carried out on engineering prefabricated members in the same batch.
The common testing device for the anti-cracking performance of the concrete in the current market is mostly similar in structure, takes a steel bracket as a main body, places a concrete sample on a placing plate, has pulleys at the front end and the rear end of the placing plate, can push the concrete to hydraulic equipment, synchronously applies force up and down, performs pressing test on the concrete sample, has some functional defects in the actual use process, has a certain improvement space, has fixed upper and lower pressurizing positions, has single testing form, has incomplete data acquisition, and does not have the function of conveniently adjusting the lower hydraulic position; secondly, when the concrete is pressurized up and down, the concrete is easy to disintegrate, fragments fall down along the reserved groove, the later cleaning is troublesome, and the functions of supporting the fragments and facilitating cleaning are not provided; in addition, when the concrete sample is subjected to a pressurizing test, once the sample is disintegrated, fragments are easy to scatter and splash, a certain potential safety hazard exists, and the function of preventing the fragments from splashing and injuring people is not provided.
At present, a novel testing device for the cracking resistance of concrete is provided to solve the problems.
Disclosure of Invention
The utility model aims to provide a testing device for the cracking resistance of concrete, which solves the problem that the prior art does not have the function of conveniently adjusting the hydraulic position below.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a testing arrangement of anti performance of concrete, includes steel main frame, four corners of steel main frame bottom are fixedly connected with bottom sprag leg respectively, horizontal fixedly connected with bottom backing plate between the bottom of bottom sprag leg one side, the top of bottom backing plate is provided with six groups of bottom pneumatic cylinders, the vertical fixedly connected with bottom kicking block in top of bottom pneumatic cylinder, the concrete placement board has been placed to the level between the inside front and back both ends of steel main frame, one side fixedly connected with top frame at steel main frame top, six groups of top pneumatic cylinders are installed at top of top frame, the bottom fixedly connected with top briquetting of top pneumatic cylinder, the intermediate position at concrete placement board top is provided with the reservation groove, the both sides at both ends are stainless steel side board respectively around the top of bottom backing plate is provided with bottom pressure position adjustable structure.
The bottom pressure position adjustable structure comprises three groups of concave seats, the three groups of concave seats are respectively horizontally placed at the top of the bottom base plate, a plurality of groups of positioning screw holes are formed in the top end of the bottom base plate, and positioning bolts are respectively inserted into the front end and the rear end of the two sides of the top of the concave seats.
Preferably, the shape and size of the bottom of the concave seat are matched with those of the top of the bottom backing plate, and the concave seat can be moved left and right along the top of the bottom backing plate.
Preferably, the top of the concave seat is connected with the bottom of the bottom hydraulic cylinder.
Preferably, the positioning bolts penetrate through the inside of the concave seat and extend into the inside of the positioning screw holes, and the positioning screw holes are arranged at equal intervals.
Preferably, the inside fixedly connected with fixed frame of reservation groove, the inside swing joint of fixed frame has elastic nylon cloth, the top of fixed frame is unanimous with the top place horizontal plane of board is placed to the concrete.
Preferably, two groups of mounting bolts are inserted into one end of the stainless steel side plate, a transparent acrylic protection plate is transversely and fixedly connected between one sides of the stainless steel side plate, and the stainless steel side plate is symmetrically distributed about the vertical center line of the top frame.
Compared with the prior art, the utility model has the beneficial effects that: the testing device for the crack resistance of the concrete not only realizes the function of being convenient for adjusting the hydraulic position below, the function of supporting fragments and being convenient for cleaning, but also realizes the function of preventing fragments from splashing to hurt people;
(1) When the device is used, a concrete sample is placed on the concrete placing plate, then the concrete placing plate is pushed to the lower part of the top frame, the top hydraulic cylinder pushes the top pressing block to press downwards, the bottom hydraulic cylinder pushes the bottom pushing block to push the top of the bottom pushing block, the concrete sample is synchronously pressurized up and down, the fracture resistance of the concrete sample is measured and calculated, the bottom hydraulic cylinder below the bottom pushing block can be increased or decreased or displaced as required before the concrete sample is pressurized, so that experimental data of more positions are obtained, when the position of the bottom hydraulic cylinder is adjusted, the concave seat can be displaced left and right along the bottom base plate only by unscrewing four groups of positioning bolts, a plurality of groups of positioning bolts provide enough adjustment space, and after the concrete sample is moved to a proper position, the positioning bolts are blocked into the positioning bolts to lock the concave seat, so that the function of conveniently adjusting the hydraulic position below is realized;
(2) When the concrete is used, the top pressing block above is directly pressed on the surface of the concrete sample during testing, the bottom pressing block below is propped against the elastic nylon cloth to press the concrete through the elastic nylon cloth, and when the concrete disintegrates, the elastic nylon cloth can bear fragments to prevent the fragments from scattering, and the physical support is provided for the installation of the elastic nylon cloth by the reservation groove and the fixing frame, so that the function of supporting fragments and facilitating cleaning is realized;
(3) Through being provided with stainless steel side board, mounting bolt and transparent ya keli guard plate, during the use, before carrying out the suppression test, install transparent ya keli guard plate in place, the stainless steel side board laminating of transparent ya keli guard plate both sides is at top frame front end, drives into the mounting bolt and fixes, when taking place to disintegrate, transparent ya keli guard plate can block the fragment that splashes, reduces personnel's injured probability, has realized preventing that the fragment from splashing the function of injury people.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic top view of the bottom pallet of the present utility model;
FIG. 3 is a schematic top view of a steel main frame of the present utility model;
fig. 4 is a schematic diagram of a front view and enlarged structure of the transparent acrylic protective plate of the present utility model.
In the figure: 1. a steel main frame; 2. a bottom support leg; 3. a bottom pad; 4. positioning screw holes; 5. a concave seat; 6. positioning bolts; 7. a bottom hydraulic cylinder; 8. a bottom top block; 9. a concrete placing plate; 10. a reserved groove; 11. a fixed frame; 12. an elastic nylon cloth; 13. a top frame; 14. a top hydraulic cylinder; 15. a top press block; 16. stainless steel side plates; 17. installing a bolt; 18. transparent acrylic protection plate.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1: referring to fig. 1-4, a testing device for the crack resistance of concrete comprises a steel main frame 1, wherein four corners of the bottom of the steel main frame 1 are respectively and fixedly connected with bottom supporting legs 2, bottom backing plates 3 are transversely and fixedly connected between the bottoms of one sides of the bottom supporting legs 2, six groups of bottom hydraulic cylinders 7 are arranged above the bottom backing plates 3, bottom jacking blocks 8 are longitudinally and fixedly connected to the tops of the bottom hydraulic cylinders 7, concrete placing plates 9 are horizontally placed between the front end and the rear end of the inside of the steel main frame 1, one side of the top of the steel main frame 1 is fixedly connected with a top frame 13, six groups of top hydraulic cylinders 14 are installed at the top of the top frame 13, top pressing blocks 15 are fixedly connected to the bottoms of the top hydraulic cylinders 14, and a bottom pressure position adjustable structure is arranged at the top of the bottom backing plates 3;
referring to fig. 1-4, the testing device for the cracking resistance of concrete further comprises a bottom pressure position adjustable structure, wherein the bottom pressure position adjustable structure comprises three groups of concave seats 5, the three groups of concave seats 5 are respectively and horizontally arranged at the top of the bottom backing plate 3, a plurality of groups of positioning screw holes 4 are formed in the top end of the bottom backing plate 3, and positioning bolts 6 are respectively inserted into the front end and the rear end of the top of the concave seat 5;
the shape and the size of the bottom of the concave seat 5 are matched with those of the top of the bottom backing plate 3, the concave seat 5 can be displaced left and right along the top of the bottom backing plate 3, the top of the concave seat 5 is connected with the bottom of the bottom hydraulic cylinder 7, the positioning bolts 6 penetrate through the inside of the concave seat 5 and extend into the inside of the positioning screw holes 4, the positioning screw holes 4 are arranged at equal intervals, and the bottom pressure position can be conveniently adjusted to obtain more data;
specifically, as shown in fig. 1 and fig. 2, when the position of the bottom hydraulic cylinder 7 is adjusted, only four groups of positioning bolts 6 on the concave seat 5 are required to be unscrewed and pulled out, the concave seat 5 can be displaced left and right along the bottom base plate 3, a plurality of groups of positioning screw holes 4 provide enough adjustment space, after moving to a proper position, the positioning bolts 6 are driven in again, and the positioning bolts 6 are clamped into the positioning screw holes 4 to lock the concave seat 5.
Example 2: the middle position of the top of the concrete placing plate 9 is provided with a reserved groove 10, the inside of the reserved groove 10 is fixedly connected with a fixed frame 11, the inside of the fixed frame 11 is movably connected with an elastic nylon cloth 12, the top of the fixed frame 11 is consistent with the horizontal plane of the top of the concrete placing plate 9, fragments can be supported, and the later cleaning difficulty is reduced;
specifically, as shown in fig. 1 and 3, the bottom top block 8 below is propped against the elastic nylon cloth 12, the concrete is pressurized by the elastic nylon cloth 12, when the concrete disintegrates, the elastic nylon cloth 12 can bear fragments to prevent the fragments from scattering, and the reservation slot 10 and the fixing frame 11 provide physical support for the installation of the elastic nylon cloth 12.
Example 3: stainless steel side plates 16 are fixedly connected to the two sides of the front end and the rear end of the top frame 13 respectively, two groups of mounting bolts 17 are inserted into one end of each stainless steel side plate 16, transparent acrylic protection plates 18 are transversely and fixedly connected between one sides of the stainless steel side plates 16, and the stainless steel side plates 16 are symmetrically distributed about the vertical center line of the top frame 13, so that the probability of fragments splashing to hurt people can be reduced;
specifically, as shown in fig. 1 and 4, stainless steel side plates 16 on two sides of a transparent acrylic protection plate 18 are attached to the front end of the top frame 13, and are fixed by driving in mounting bolts 17, when disintegration occurs, the transparent acrylic protection plate 18 can block splashed fragments, so that the probability of injury of personnel is reduced.
Working principle: when the utility model is used, firstly, a concrete sample is placed on the concrete placing plate 9, then the concrete placing plate 9 is pushed to the lower part of the top frame 13, the top hydraulic cylinder 14 pushes the top pressing block 15 to press downwards, the bottom hydraulic cylinder 7 pushes the bottom jacking block 8 to jack upwards and downwards, the fracture resistance of the concrete sample is measured and calculated, before the concrete sample is pressurized, the bottom hydraulic cylinder 7 below can be increased or decreased or displaced according to the requirement to obtain experimental data of more positions, when the position of the bottom hydraulic cylinder 7 is adjusted, the concave seat 5 can be moved left and right along the bottom backing plate 3 only by unscrewing and extracting four groups of positioning bolts 6, a plurality of groups of positioning screw holes 4 provide enough adjustment space, after the concrete sample is moved to a proper position, the positioning bolts 6 are driven into the positioning screw holes 4 again, and the concave seat 5 can be locked. During testing, the top pressing block 15 above is directly pressed on the surface of a concrete sample, the bottom pressing block 8 below is propped against the elastic nylon cloth 12, the concrete is pressurized by the elastic nylon cloth 12, when the concrete disintegrates, the elastic nylon cloth 12 can bear fragments to prevent the fragments from scattering, and the reservation groove 10 and the fixing frame 11 provide physical support for the installation of the elastic nylon cloth 12. Before the compression test is carried out, the transparent acrylic protection plate 18 is installed in place, the stainless steel side plates 16 on two sides of the transparent acrylic protection plate 18 are attached to the front end of the top frame 13, the installation bolts 17 are driven into the front end to fix the transparent acrylic protection plate, and when disintegration occurs, the transparent acrylic protection plate 18 can block splashed fragments, so that the injury probability of personnel is reduced.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The device for testing the crack resistance of the concrete comprises a steel main frame (1), and is characterized in that: four corners of the bottom of the steel main frame (1) are respectively fixedly connected with bottom supporting legs (2), bottom backing plates (3) are transversely and fixedly connected between bottoms of one sides of the bottom supporting legs (2), six groups of bottom hydraulic cylinders (7) are arranged above the bottom backing plates (3), bottom top blocks (8) are longitudinally and fixedly connected to the tops of the bottom hydraulic cylinders (7), concrete placing plates (9) are horizontally placed between front ends and rear ends of the inside of the steel main frame (1), one side of the top of the steel main frame (1) is fixedly connected with a top frame (13), six groups of top hydraulic cylinders (14) are arranged at the top of the top frame (13), top pressing blocks (15) are fixedly connected to the bottoms of the top hydraulic cylinders (14), reserved grooves (10) are formed in the middle positions of the tops of the concrete placing plates (9), stainless steel side edge plates (16) are respectively and fixedly connected to the two sides of the front ends and the rear ends of the top frame (13), and the top of the bottom backing plates (3) are provided with bottom pressure position adjustable structures;
the bottom pressure position adjustable structure comprises three groups of concave seats (5), the three groups of concave seats (5) are respectively horizontally placed at the top of a bottom base plate (3), a plurality of groups of positioning screw holes (4) are formed in the top end of the bottom base plate (3), and positioning bolts (6) are respectively inserted into the front end and the rear end of two sides of the top of the concave seats (5).
2. The device for testing the crack resistance of concrete according to claim 1, wherein: the shape and the size of the bottom of the concave seat (5) are matched with those of the top of the bottom backing plate (3), and the concave seat (5) can be horizontally displaced along the top of the bottom backing plate (3).
3. The device for testing the crack resistance of concrete according to claim 1, wherein: the top of the concave seat (5) is connected with the bottom of the bottom hydraulic cylinder (7).
4. The device for testing the crack resistance of concrete according to claim 1, wherein: the positioning bolts (6) penetrate through the concave seat (5) and extend into the positioning screw holes (4), and the positioning screw holes (4) are arranged at equal intervals.
5. The device for testing the crack resistance of concrete according to claim 1, wherein: the inside fixedly connected with fixed frame (11) of reservation groove (10), the inside swing joint of fixed frame (11) has elasticity nylon cloth (12), the top of fixed frame (11) is unanimous with the horizontal plane that top place board (9) was placed to concrete.
6. The device for testing the crack resistance of concrete according to claim 1, wherein: two groups of mounting bolts (17) are inserted into one end of the stainless steel side plate (16), a transparent acrylic protection plate (18) is transversely and fixedly connected between one sides of the stainless steel side plate (16), and the stainless steel side plate (16) is symmetrically distributed about the vertical central line of the top frame (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321964093.0U CN220289266U (en) | 2023-07-25 | 2023-07-25 | Testing device for crack resistance of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321964093.0U CN220289266U (en) | 2023-07-25 | 2023-07-25 | Testing device for crack resistance of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220289266U true CN220289266U (en) | 2024-01-02 |
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ID=89332441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321964093.0U Active CN220289266U (en) | 2023-07-25 | 2023-07-25 | Testing device for crack resistance of concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220289266U (en) |
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2023
- 2023-07-25 CN CN202321964093.0U patent/CN220289266U/en active Active
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