CN218098626U - A anti test device that rolls over for concrete sample - Google Patents
A anti test device that rolls over for concrete sample Download PDFInfo
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- CN218098626U CN218098626U CN202221602790.7U CN202221602790U CN218098626U CN 218098626 U CN218098626 U CN 218098626U CN 202221602790 U CN202221602790 U CN 202221602790U CN 218098626 U CN218098626 U CN 218098626U
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Abstract
The utility model provides an anti-bending test device for a concrete sample, which comprises a lower base, a positioning component and an upper base, wherein two groups of lower supporting seats for supporting the concrete sample are connected on the lower base in a sliding way; the positioning assembly comprises a screw rod arranged in the groove and a driving motor connected with the screw rod, the screw rod is connected with two sliding blocks, each sliding block is connected with a push rod assembly, and the push rod assemblies upwards penetrate through the lower base to be matched with the concrete test piece; the upper supporting seat is arranged on the upper base and the lower base, and the testing machine directly acts on the upper base during testing. The utility model is more convenient and faster when adjusting the load spacing and the supporting spacing aiming at the concrete samples with different sizes, and avoids the complex process of readjustment after reading; adopt driving motor to realize the quick location of concrete test piece, avoided the test block marking off work that takes time, reduced simultaneously because of the artifical test block of putting appears positional deviation easily and then influence the deviation of test result, save time and manpower, increase experimental accuracy.
Description
Technical Field
The utility model belongs to the technical field of the concrete bending strength detection technique and specifically relates to an anti test device that rolls over for concrete sample.
Background
The physical mechanical property test of the concrete is an important means for controlling the quality of the concrete, wherein the flexural strength of the concrete is one of main mechanical indexes of the concrete.
When carrying out above-mentioned experiment at present, need control two loading heads and two support heads and do not act on 3 minutes punishment departments in the test piece span through drawing the marking line on the concrete sample, among the actual operation, draw the line and will consume the more time of testing personnel, the location is inaccurate when putting the concrete sample by the manual work simultaneously, the deviation appears easily, and then influences the test result.
Patent CN207703619U discloses an anti experimental anchor clamps of rolling over of concrete test block, and it is provided with first supporting rod and the second supporting rod that is parallel to each other to slide on its base, base fixedly connected with support, support sliding connection has the pressure head, the pressure head is located the planar top that first supporting rod and second supporting rod formed, the centre that first supporting rod and second supporting rod were aimed at to the pressure head, it is provided with the screw rod to rotate on the base, first supporting rod forms forward thread transmission with the screw rod, the second supporting rod forms reverse thread transmission with the screw rod, the one end of screw rod is connected with and is used for driving screw rod pivoted driving piece.
Patent CN208283176U provides a core appearance sectional fixture of concrete bending test machine, and its under bracing seat sliding connection is equipped with the connecting rod that is used for pressing from both sides tight core appearance on the opposite face of under bracing seat on the base down, corresponds the core appearance on the base down and is equipped with the scale, goes up to correspond the scale on the supporting seat and is equipped with measuring part, measures the accurate position of supporting seat interval through measuring part on the reading on the scale and obtains.
However, when the positions of the loading head and the support head are adjusted, the loading head and the support head need to be aligned manually according to the graduated scale, and the operation speed is slow and is not simple and convenient enough; the device does not consider the positioning problem of the concrete test block, and the manual placing and positioning mode is time-consuming and labor-consuming and is easy to have deviation; the device is clean difficult after the experiment, and the concrete test block disintegrating slag can fall into in the recess or the screw rod screw thread of the positive and negative side.
And the upper pressure head of the patent CN207703619U is single-point load, and is not suitable for double-point loading specified by relevant standard specifications of China.
Disclosure of Invention
The utility model provides a not enough to prior art, the utility model provides an anti test device that rolls over for concrete sample is applicable to china's standard and can quick adjustment interval, quick location test block, and experimental rear is convenient clean, has improved the operating efficiency.
The technical scheme of the utility model is that: an anti-bending test device for a concrete test piece comprises a lower base, wherein two groups of lower supporting seats for supporting the concrete test piece are connected to the lower base in a sliding manner;
the device comprises a lower base, a positioning component and a control component, wherein the lower base is provided with a groove at the bottom end along the length direction, the positioning component comprises a screw rod arranged in the groove and a driving motor connected with one end of the screw rod, the screw rod is connected with two sliding blocks, one of the sliding blocks is in forward thread transmission with the screw rod, and the other sliding block is in reverse thread transmission with the screw rod; the push rod assembly is arranged on each sliding block, and the push rod assembly penetrates through the lower base upwards to be matched with the concrete test piece;
the device still including the last supporting seat that is used for the folded concrete test piece, last supporting seat install on last base, the testing machine direct action is on last base during the experiment.
Preferably, each group of the lower supporting seats comprises a bottom plate, a connecting plate and a supporting plate, the supporting plate is connected with the bottom plate through the connecting plate, the bottom plate is connected with the lower base in a sliding mode, the upper end of the supporting plate is of an arc-shaped surface structure, and the diameter of the arc surface of the supporting plate is 20-40 mm.
Preferably, two parallel sliding grooves are symmetrically arranged on two side walls of the lower base, a plurality of balls or rollers are arranged in the sliding grooves, and a bottom plate of the lower support base is in sliding connection with the lower base through the sliding grooves.
Preferably, a plurality of limiting blocks are arranged in each sliding groove, and the bottom plate is limited by the limiting blocks.
Preferably, 4 limiting blocks are arranged in each sliding groove, two limiting blocks are in a group, the two bottom plates are respectively positioned between the two corresponding limiting blocks, and when the two bottom plates slide to the two far-end limiting blocks, the center distance is 450mm; when the two bottom plates slide to the limit blocks at the two near ends, the center-to-center distance is 300mm.
Preferably, the lower base is symmetrically provided with two strip-shaped grooves, and the two push rod assemblies penetrate out of the corresponding strip-shaped grooves and are matched with the concrete test piece.
Preferably, the clamping distance between the two push rod assemblies is larger than 600mm.
Preferably, the push rod assembly comprises a connecting rod and a positioning push rod connected with the connecting rod, the connecting rod is connected with the sliding block, the positioning push rod is of a T-shaped structure, and a notch used for being matched with the concrete test piece is formed in the positioning push rod.
Preferably, the upper supporting seat is provided with a via hole matched with the upper base and used for adjusting the distance between the two upper supporting seats, the lower end of the upper supporting seat is of an arc surface structure, and the diameter of the arc surface of the upper supporting seat is 20-40 mm.
Preferably, the upper base is provided with two mutually symmetrical clamping grooves for sliding limiting of the two upper supporting seats to realize rapid adjustment of the distance, and when the two upper supporting seats slide to the farthest ends of the clamping grooves, the distance between the centers of the two upper supporting seats is 150mm; when the two upper supporting seats slide to the nearest end of the clamping groove, the center distance between the two upper supporting seats is 100mm.
The utility model has the advantages that:
1. the utility model is more convenient and faster when adjusting the load spacing and the supporting spacing aiming at the concrete samples with different sizes, and avoids the complex process of readjustment after reading;
2. the utility model adopts the driving motor to realize the rapid positioning of the concrete test piece, avoids the time-consuming marking work of the test block, reduces the deviation which is easy to cause the position deviation and further influences the test result because of the manual placing of the test block, saves time and manpower, and increases the test accuracy;
3. the utility model discloses the spout setting has improved the clean efficiency of fragment and disintegrating slag after the concrete test piece crushes by pressure base side under, and can avoid fragment and disintegrating slag to fall into and be difficult to clear position and cause the jam.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the bottom surface of the present invention;
in the figure, 1, a lower base; 2. a lower support seat; 3. a chute; 4. a limiting block; 5. a screw; 6. mounting blocks; 7. a drive motor; 8. a first slider; 9. a second slider; 10. a strip-shaped groove; 11. positioning the push rod; 12. an upper base; 13. an upper support base; 14. a card slot; 15. a concrete sample; 16. a groove 17, a connecting rod; 18. a push rod assembly;
201. a base plate; 202. a connecting plate; 203. and a support plate.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1 and 2, this embodiment provides an anti-fracture test device for concrete sample, including lower base 1, lower base 1 around both sides be provided with two mutual symmetries and parallel arrangement's spout 3, spout 3 set up and be favorable to the cleaning work of fragment and disintegrating slag after concrete sample 15 crushes in the side, avoid it to fall into spout etc. and lead to the fact the jam in difficult clear position.
Two lower supporting seat 2 pass through 3 sliding connection of spout 3 with the spout of lower base 1, just spout 3 in be provided with a plurality of balls or running roller, can reduce the frictional resistance of lower supporting seat 2 and lower base 1, laborsaving level and smooth more when 2 positions of manual adjustment lower supporting seat are favorable to the quick adjustment of lower supporting seat 2.
In this embodiment, every spout 3 in be equipped with four stopper 4, when two under bracing seats 2 slide to two distal end stoppers 4, the interaxis of two under bracing seats 2 is 450mm, when two under bracing seats 2 slide to two near- end stoppers 4, 2 interaxes of two under bracing seats are 300mm, therefore, when adopting standard test piece experimental, slide under bracing seat 2 to the farthest end can, when adopting non-standard test piece experimental, slide under bracing seat 2 to the nearest end can, need not to mark scale and people's eye reading, easy and simple to handle is quick, time saving.
In this embodiment, lower base 1 bottom intermediate position be equipped with recess 16, lower base 1 above recess 16 on the symmetry be equipped with two sections long banding bar grooves 10, recess 16 both ends set up installation piece 6 respectively, installation piece 6 in the middle of be equipped with the round hole, screw rod 5 pass the round hole and install on installation piece 6, one side of screw rod 5 pass installation piece 6 after be connected with driving motor 7.
And the screw 5 is connected with two sliding blocks through threads, namely a first sliding block 8 and a second sliding block 9, wherein the first sliding block 8 and the screw 5 are in forward thread transmission, the second sliding block 9 and the screw 5 are in reverse thread transmission, and the first sliding block 8 and the second sliding block 9 are symmetrically arranged. The first sliding block 8 and the second sliding block 9 are connected with corresponding push rod assemblies 18, and the push rod assemblies 18 comprise connecting rods 17 and positioning push rods 11. Connecting rod 17 be connected with first slider 8 or second slider 9, connecting rod 17 upwards pass bar groove 10 and positioning push rod 11 fixed connection, when driving motor 7 drove screw rod 5 and rotates, first slider 8 and second slider 9 be close to or keep away from in step, drive positioning push rod 11 and promote or loosen test piece 15 in step, can avoid the artifical problem of putting test piece 15 and taking time and energy and appearing the deviation easily when fixing a position, need not to rule the test piece again before the experiment simultaneously, practice thrift manpower, time, and increased the accuracy of test result.
Preferably, the upper base 12 for installing the upper support base 13 is further arranged above the concrete test block 15, the testing machine acts on the upper base 12 during testing, and the upper base 12 drives the upper support base 13 to perform double-point load on the test block 15.
Last supporting seat 13 on be equipped with last base 12 assorted via hole, last supporting seat 13 establish in the draw-in groove 14 of last base 12 through the via hole cover, last supporting seat 13 through slide the regulation that realizes two-point load interval in draw-in groove 14, when two last supporting seat 13 slide to draw-in groove 14 farthest end, two center distance that go up supporting seat 13 is 150mm, when two go up supporting seat 13 slide to draw-in groove 14 nearest end, two center distance that go up supporting seat 13 are 100mm, therefore, when adopting standard test piece experiment, support 13 can to the farthest end in sliding, when adopting non-standard test piece experiment, support 13 can to the nearest end in sliding, need not to mark scale and people's eye reading, easy and simple to handle is quick, and the time saving can realize the quick accurate regulation of two-point load interval.
In this embodiment, in order to ensure the accuracy of the test data, according to the relevant standard specification, the upper end of the lower support base 2 and the lower end of the upper support base 13 are both arc surface structures, and the diameter is 20mm to 40mm.
When in use:
firstly, placing the device on a press machine, wherein a press rod of the press machine can be connected with an upper base 12, adjusting the distance between two lower supporting seats 2 according to the size of a concrete test piece 15, and sliding the lower supporting seats 2 to the farthest end when a standard test piece test is adopted; when the non-standard test piece test is adopted, the lower support base 2 is slid to the nearest end and fixed.
And secondly, placing the concrete test piece 15 above the two lower supporting seats 2, allowing the position of the concrete test piece 15 to have smaller distance or corner deviation during placement, starting the driving motor 7, enabling the positioning push rod 11 to be synchronously closed, contacting and pushing the concrete test piece 15 to realize centering positioning, and keeping the positioning push rod 11 away from the concrete test piece 15 after positioning to avoid influencing the test result.
And thirdly, adjusting the distance between the upper supporting seats 13. When the standard test piece test is adopted, the upper support base 13 is slid to the farthest end; when testing with a non-standard concrete specimen 15, the upper support 13 is slid to the nearest end and secured.
And fourthly, starting the press machine for testing.
The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.
Claims (10)
1. The utility model provides an anti test device that rolls over for concrete sample which characterized in that: the device comprises a lower base (1), wherein two groups of lower supporting seats (2) for supporting concrete samples (15) are connected on the lower base (1) in a sliding manner;
the device is characterized in that a groove (16) is further formed in the bottom end of the lower base (1) along the length direction, the device further comprises a positioning assembly, the positioning assembly comprises a screw rod (5), a driving motor (7) and a push rod assembly (18), the screw rod (5) is arranged in the groove (16) of the lower base (1) through a mounting block (6), one end of the screw rod (5) is connected with the driving motor (7), a first sliding block (8) and a second sliding block (9) are connected onto the screw rod (5), the first sliding block (8) is in forward thread transmission with the screw rod (5), and the second sliding block (9) is in reverse thread transmission with the screw rod (5);
the first sliding block (8) and the second sliding block (9) are connected with corresponding push rod assemblies (18), and the push rod assemblies (18) upwards penetrate through the lower base (1) to be matched with the concrete test piece (15);
the device still including being located fold concrete test piece (15) top and being used for the last supporting seat (13) of fold concrete test piece (15), last supporting seat (13) install on last base (12), during the experiment testing machine direct action goes up base (12).
2. The bending test device for the concrete specimen according to claim 1, characterized in that: each group of lower supporting seat (2) comprises a bottom plate (201), a connecting plate (202) and a supporting plate (203), wherein the supporting plate (203) is connected with the bottom plate (201) through the connecting plate (202), the bottom plate (201) is in sliding connection with the lower base (1), the upper end of the supporting plate (203) is of an arc-shaped surface structure, and the diameter of the arc surface of the supporting plate (203) is 20-40 mm.
3. The bending test device for the concrete specimen according to claim 2, characterized in that: two parallel sliding grooves (3) are symmetrically arranged on two side walls of the lower base (1), a plurality of balls or rollers are arranged in the sliding grooves (3), and a bottom plate (201) of the lower supporting base (2) is connected with the lower base (1) in a sliding mode through the sliding grooves (3).
4. A bending test apparatus for a concrete specimen according to claim 3, characterized in that: a plurality of limiting blocks (4) are arranged in each sliding groove (3), and the position of the bottom plate (201) is limited through the limiting blocks (4).
5. The bending test device for the concrete specimen according to claim 4, characterized in that: 4 limiting blocks (4) are arranged in each sliding groove (3), the two limiting blocks (4) form a group, the bottom plates (201) of the two lower supporting seats (2) are respectively positioned in the sliding groove (3) between the two corresponding limiting blocks (4), and when the two bottom plates (201) respectively slide to the two far-end limiting blocks (4), the central distance between the two bottom plates (201) is 450mm; when the two bottom plates (201) slide to the two proximal limit blocks (4) respectively, the center distance between the two bottom plates (201) is 300mm.
6. The bending test device for the concrete specimen according to claim 3, characterized in that: two strip-shaped grooves (10) are symmetrically formed in the lower base (1), and the push rod assemblies (18) penetrate upwards from the corresponding strip-shaped grooves (10) and are matched with the concrete test piece (15).
7. The bending test device for the concrete specimen according to claim 6, characterized in that: the clamping distance between the two push rod assemblies (18) is larger than 600mm.
8. The bending test device for the concrete specimen according to claim 7, characterized in that: push rod subassembly (18) including connecting rod (17), with connecting rod (17) the location push rod (11) of connecting, corresponding connecting rod (17) with be connected with first slider (8), second slider (9) respectively, just location push rod (11) be T type structure, be provided with on it and be used for with concrete test piece (15) matched with notch.
9. The bending test device for the concrete specimen according to claim 1, characterized in that: go up supporting seat (13) on be equipped with go up the via hole that base (12) match for adjust two go up distance between supporting seat (13), the lower extreme of going up supporting seat (13) is the arc surface structure, the diameter of the arc surface of going up supporting seat (13) is 20mm-40mm.
10. The bending test device for the concrete specimen according to claim 9, characterized in that: the upper base (12) is provided with two mutually symmetrical clamping grooves (14) for sliding and limiting the two upper supporting seats (13) to realize quick adjustment of the distance, and when the two upper supporting seats (13) slide to the farthest ends of the clamping grooves (14), the central distance between the two upper supporting seats (13) is 150mm; when the two upper supporting seats (13) slide to the nearest end of the clamping groove (14), the center distance between the two upper supporting seats (13) is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221602790.7U CN218098626U (en) | 2022-06-24 | 2022-06-24 | A anti test device that rolls over for concrete sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221602790.7U CN218098626U (en) | 2022-06-24 | 2022-06-24 | A anti test device that rolls over for concrete sample |
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| CN218098626U true CN218098626U (en) | 2022-12-20 |
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| CN202221602790.7U Active CN218098626U (en) | 2022-06-24 | 2022-06-24 | A anti test device that rolls over for concrete sample |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN118310861A (en) * | 2024-06-07 | 2024-07-09 | 连云港旺和新型建材有限公司 | Flexural strength analyzer and method for analyzing flexural strength of building material |
-
2022
- 2022-06-24 CN CN202221602790.7U patent/CN218098626U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN118310861A (en) * | 2024-06-07 | 2024-07-09 | 连云港旺和新型建材有限公司 | Flexural strength analyzer and method for analyzing flexural strength of building material |
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