CN212748536U - Concrete splitting tensile strength test detection device - Google Patents
Concrete splitting tensile strength test detection device Download PDFInfo
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- CN212748536U CN212748536U CN202021495279.2U CN202021495279U CN212748536U CN 212748536 U CN212748536 U CN 212748536U CN 202021495279 U CN202021495279 U CN 202021495279U CN 212748536 U CN212748536 U CN 212748536U
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- tensile strength
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Abstract
The utility model relates to a concrete splitting tensile strength test detection device belongs to concrete test device, provides following technical scheme to the problem that support and clamp plate take place the skew very easily, and the technical essential of this application includes the filler strip, the filler strip is two, two the filler strip sets up relatively, two the filler strip sets up respectively in the both sides of concrete sample, one side that the concrete sample was kept away from to the filler strip sets up to the plane, two be provided with the locating lever between the filler strip, locating lever and filler strip set up perpendicularly, the locating lever is two, two the relative and parallel arrangement of locating lever is in the both sides of concrete sample, the spacing groove has been seted up along its axis direction to the locating lever, the filler strip is pegged graft in the inside of spacing groove. This application has the advantage that prevents the filler strip and take place the skew.
Description
Technical Field
The application relates to a concrete test device, in particular to a concrete splitting tensile strength test detection device.
Background
The concrete is a mixture prepared by mixing cementing material, granular aggregate, water, chemical additive and mineral admixture which need to be added according to a proper proportion, or a composite material with an aggregate structure is formed after hardening.
When the concrete test is carried out, a tester needs to draw mutually parallel straight lines in the middle of the top surface and the bottom surface of a concrete test piece to determine the position of a splitting surface, then the concrete test piece is placed between the bottom plate and the pressing plate, and the performance of the concrete is tested through acting force. The base plate and the pressure plate are connected by a bracket, and in the existing device, the bracket and the pressure plate are easy to shift.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, the utility model aims to provide a concrete splitting tensile strength test detection device, it has the advantage that prevents the filler strip and take place the skew.
The technical purpose of the application is realized by the following technical scheme:
the utility model provides a concrete splitting tensile strength test detection device, includes the filler strip, the filler strip is two, two the filler strip sets up relatively, two the filler strip sets up respectively in the both sides of concrete sample, one side that the concrete sample was kept away from to the filler strip sets up to the plane, two be provided with the locating lever between the filler strip, locating lever and filler strip set up perpendicularly, the locating lever is two, two the locating lever is relative and parallel arrangement in the both sides of concrete sample, the spacing groove has been seted up along its axis direction to the locating lever, the filler strip is pegged graft in the inside of spacing groove.
By adopting the technical scheme, the positioning rod is aligned to the center of a straight line drawn in advance on the concrete test piece, and the limiting groove into which the filler strip can be inserted is arranged at the corresponding position of the positioning rod, so that the central line of the filler strip is aligned to the central line of the concrete test piece and is vertical to the contact surface of the concrete test piece; through setting up two filler strips, all peg graft when the inside of spacing groove when two filler strips, make the concrete sample be located the local area within range that two filler strips and locating lever enclose, realize pressing from both sides tight fixed to the concrete sample, improved the fixed effect of two filler strips to the concrete sample to avoid the filler strip to take place the skew.
The application is further configured to: and the contact end of the filler strip and the concrete test piece is an arc surface.
Through adopting above-mentioned technical scheme, reduce the area of contact of filler strip and concrete sample, improve the filler strip and to the effort of concrete sample, avoid concrete sample eccentric compression, be convenient for realize the measurement to concrete sample splitting tensile strength.
The application is further configured to: the positioning rod is arranged in a cross shape.
Through adopting above-mentioned technical scheme, be convenient for realize that locating lever center aligns with the sharp center of drawing at the concrete sample in advance.
The application is further configured to: the filler strip comprises plywood or hard fiberboard.
Through adopting above-mentioned technical scheme, because when measuring concrete sample splitting tensile strength, the filler strip can receive destruction, material saving changes's cost, reduces the influence of filler strip to measuring result simultaneously.
The application is further configured to: the axial length of the filler strip is greater than that of the concrete test piece.
Through adopting above-mentioned technical scheme, be convenient for realize realizing fixing the concrete sample from the both sides of concrete sample.
The application is further configured to: the locating lever is cavity setting, the inside flexible adjustment mechanism that is used for adapting to interval between two filler strips that is provided with of locating lever.
Through adopting above-mentioned technical scheme, be convenient for realize fixed to different specification concrete samples, make the locating lever can be adapted to different specification concrete samples, be convenient for realize the measurement to different specification concrete samples splitting tensile strength.
The application is further configured to: the telescopic adjusting mechanism comprises a first adjusting arm, a second adjusting arm and a fixing assembly for limiting the relative positions of the first adjusting arm and the second adjusting arm, and the first adjusting arm and the second adjusting arm are arranged oppositely and in parallel.
Through adopting above-mentioned technical scheme, be convenient for realize the distance between first regulating arm and the second regulating arm both ends to be convenient for adapt to the interval between two filler strips.
The application is further configured to: the first adjusting arm and the second adjusting arm are located at the outer ends of the positioning rods and are provided with limiting plates, and the two limiting plates are arranged oppositely.
Through adopting above-mentioned technical scheme, through the setting of limiting plate, be convenient for increase first regulating arm and second regulating arm and the area of contact of concrete sample, avoid inserting the in-process locating lever skew of spacing groove at the filler strip.
The application is further configured to: the telescopic adjusting mechanisms are two groups, the extending directions of the telescopic adjusting mechanisms are intersected at one point, and the fixed assembly can limit the movement of the two groups of telescopic adjusting mechanisms at the same time.
Through adopting above-mentioned technical scheme, realize being provided with the fixed of filler strip both sides to the concrete sample, be convenient for keep the locating lever center and aim at the straight line center that the concrete sample was drawn in advance, avoid the locating lever skew.
The application is further configured to: the fixing assembly comprises a driving gear and a positioning screw rod, the driving gear is arranged between a first adjusting arm and a second adjusting arm, the positioning screw rod limits the driving gear to rotate, the first adjusting arm is provided with a first tooth groove meshed with the driving gear, and the second adjusting arm is provided with a second tooth groove meshed with the driving gear; the end part of the positioning screw rod is abutted with the driving gear.
Through adopting above-mentioned technical scheme, through the tight driving gear in positioning screw top, realize prescribing a limit to the rotation of driving gear, because the driving gear meshes with first regulating arm and second regulating arm respectively, realize prescribing a limit to the position between first regulating arm and the second regulating arm. When the limit of the positioning screw rod on the driving gear is released, the first adjusting arm and the second adjusting arm can synchronously and reversely move by moving the first adjusting arm or the second adjusting arm.
In summary, the present application has the following beneficial effects:
firstly, the two cushion strips are arranged, so that the concrete test piece is positioned in a local area defined by the two cushion strips and the positioning rod, the concrete test piece is clamped and fixed, and the fixing effect of the two cushion strips on the concrete test piece is improved; the limiting groove into which the filler strip can be inserted is formed in the corresponding position of the positioning rod, so that the center line of the filler strip is aligned with the center line of the concrete test piece and is perpendicular to the contact surface of the concrete test piece, and the filler strip is prevented from deviating;
secondly, the contact end of the filler strip and the concrete test piece is set to be a cambered surface, so that the concrete test piece is prevented from being eccentrically pressed, and the split tensile strength of the concrete test piece is conveniently measured;
thirdly, through the arrangement of the telescopic adjusting mechanism, the fixation of the concrete samples with different specifications is realized, so that the positioning rod can adapt to the concrete samples with different specifications, thereby facilitating the measurement of the splitting tensile strength of the concrete samples with different specifications;
and fourthly, the driving gear is respectively meshed with the first adjusting arm and the second adjusting arm, the first adjusting arm or the second adjusting arm is moved, synchronous reverse movement of the first adjusting arm and the second adjusting arm can be achieved, the moving distance of the first adjusting arm and the second adjusting arm is kept equal, and when the distance between the first adjusting arm and the second adjusting arm is adjusted, the center of the positioning rod is kept aligned with the center of a straight line drawn on the concrete sample in advance.
Drawings
FIG. 1 is a schematic view of the overall structure of a concrete splitting tensile strength test detection device;
FIG. 2 is a schematic structural diagram of a concrete splitting tensile strength test detection device with a hidden positioning rod and a telescopic adjusting mechanism;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure, 1, a filler strip; 11. a cambered surface; 12. a plane; 2. positioning a rod; 3. a concrete sample; 4. a plug rod; 5. a telescopic adjusting mechanism; 51. a first adjustment arm; 511. a first tooth slot; 52. a second adjustment arm; 521. a second tooth slot; 53. a fixing assembly; 531. a driving gear; 532. positioning a screw rod; 6. a limiting plate; 61. a limiting groove.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1, for this application discloses a concrete splitting tensile strength test detection device, including filler strip 1 and locating lever 2.
The filler strip 1 can be a hard fiberboard, and the surface of the hard fiberboard is sanded; the filler strip 1 also can be the plywood, satisfies the disposable of filler strip 1, and the cost of material saving change reduces the influence of filler strip 1 to measuring result simultaneously. The filler strip 1 is two, and two relative and parallel arrangement in concrete sample 3's both sides of filler strip 1 are used for pressing from both sides to get concrete sample 3 between two filler strips 1, and when from the top exerted pressure, concrete sample 3 can be cut into two halves from the centre. Contact end setting of filler strip 1 and concrete sample 3 is cambered surface 11, and one side that concrete sample 3 was kept away from to filler strip 1 sets up to plane 12, and the cross-section of filler strip 1 is the arc setting, and the cross-sectional diameter of filler strip 1 and the external diameter of concrete sample 3 equal, and the axis length of filler strip 1 equals the length of concrete sample 3. Two ends of the filler strip 1 are respectively extended with a splicing rod 4 along the length direction.
The locating lever 2 is the rigidity material, and locating lever 2 is vertical to be set up between two filler strips 1, and locating lever 2 is two, and two locating levers 2 are relative and parallel arrangement in concrete sample 3's both sides. Two locating levers 2 all are cross setting, and the major axis and the filler strip 1 of locating lever 2 set up perpendicularly, and the nodical and the center department coincidence of concrete sample 3 of the nodical of 2 major axes of locating lever and minor axis.
With reference to fig. 1 and 2, the positioning rod 2 is hollow, and a telescopic adjusting mechanism 5 adapted to the space between the two filler strips 1 is arranged inside the positioning rod 2. The telescopic adjusting mechanisms 5 are two groups, and the extending directions of the two groups of telescopic adjusting mechanisms 5 are intersected at one point.
With reference to fig. 2 and 3, each set of telescopic adjustment mechanisms 5 comprises a first adjustment arm 51 slidably disposed inside the positioning rod 2, a second adjustment arm 52 slidably disposed inside the positioning rod 2, and a fixing assembly 53 defining movement of the two sets of telescopic adjustment mechanisms 5 at the same time. The first adjusting arm 51 and the second adjusting arm 52 of one set of telescopic adjusting mechanism 5 are arranged across the interval between the first adjusting arm 51 and the second adjusting arm 52 of the other set of telescopic adjusting mechanism 5. The fixed assembly 53 includes a drive gear 531 and a set screw 532.
Referring to fig. 3, the driving gear 531 is rotatably disposed at the center of the positioning rod 2, the first adjusting arm 51 and the second adjusting arm 52 are respectively disposed at two sides of the driving gear 531, and the first adjusting arm 51 and the second adjusting arm 52 are disposed oppositely and in parallel. One side of the first adjusting arm 51, which faces the driving gear 531, is provided with a plurality of first tooth grooves 511, the plurality of first tooth grooves 511 are arranged at equal intervals along the length direction of the first adjusting arm 51, the driving gear 531 is meshed with the first tooth grooves 511, and one end of the first adjusting arm 51, which is far away from the driving gear 531, extends from one end of the positioning rod 2 to the outside of the positioning rod 2; the second adjusting arm 52 is provided with a plurality of second tooth grooves 521 engaged with the driving gear 531, the plurality of second tooth grooves 521 are arranged at equal intervals along the length direction of the second adjusting arm 52, and one end of the second adjusting arm 52 away from the driving gear 531 extends to the outside of the positioning rod 2 from the other end of the positioning rod 2.
Referring to fig. 3, be located the outside first regulating arm 51 tip of locating lever 2 and the tip of second regulating arm 52 and all set firmly limiting plate 6, two limiting plates 6 that are close to filler strip 1 one side all are vertical setting, and limiting plate 6 sets up along its length direction and supplies peg graft 4 male spacing groove 61, and spacing groove 61 is the setting of U type, and the open end of spacing groove 61 is towards filler strip 1, conveniently changes filler strip 1, need not to change whole filler strip 1 and locating lever 2, and it is fast to change. Keep away from 1 one side of filler strip two limiting plates 6 and all set up with locating lever 2 is perpendicular, and limiting plate 6 butt is in concrete sample 3's surface.
The end part of the first adjusting arm 51 or the end part of the second adjusting arm 52 outside the positioning rod 2 is moved, so that the driving gear 531 is driven to rotate, the driving gear 531 drives the first adjusting arm 51 and the second adjusting arm 52 to synchronously and reversely move, the moving directions of the two first adjusting arms 51 are vertically arranged, and the moving directions of the two second adjusting arms 52 are vertically arranged.
Referring to fig. 3, the axis of the positioning screw 532 is parallel to the rotation axis of the driving gear 531, the positioning screw 532 is screwed to the positioning rod 2, and the positioning screw 532 is rotated to abut the end of the positioning screw 532 against the surface of the driving gear 531 on the side away from the concrete sample 3, thereby restricting the rotation of the driving gear 531.
The implementation principle of the embodiment is as follows: and after taking the concrete test piece 3 reaching the test age out of the maintenance place, drawing mutually parallel straight lines at the top, the bottom and the middle of the concrete test piece 3 to determine the position of the cleavage plane. Aligning the center of a positioning rod 2 to the center of a straight line drawn in advance on a concrete test piece 3, and arranging a limit groove 61 into which a cushion strip 1 can be inserted at a corresponding position of the positioning rod 2, so that the center line of the cushion strip 1 is aligned with the center line of the concrete test piece 3 and is perpendicular to the contact surface of the concrete test piece 3; through setting up two filler strips 1, when two filler strips 1 all peg graft in the inside of spacing groove 61, make concrete test piece 3 be located two local area within range that filler strip 1 and locating lever 2 enclose, realize pressing from both sides tight fixedly to concrete test piece 3, improved two fixed effects of filler strip 1 to concrete test piece 3 to avoid filler strip 1 to take place the skew.
The driving gear 531 is meshed with the first adjusting arm 51 and the second adjusting arm 52 respectively, the first adjusting arm 51 or the second adjusting arm 52 is moved, synchronous reverse movement of the first adjusting arm 51 and the second adjusting arm 52 can be achieved, the moving distance of the first adjusting arm 51 and the moving distance of the second adjusting arm 52 are kept equal, the distance between the first adjusting arm 51 and the second adjusting arm 52 is adjusted, meanwhile, the center of the positioning rod 2 is kept aligned with the center of a straight line drawn on the concrete specimen 3 in advance, and the splitting tensile strength test of the concrete specimens 3 with different specifications is facilitated.
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 concrete splitting tensile strength test detection device, a serial communication port, including filler strip (1), filler strip (1) is two, two filler strip (1) sets up relatively, two filler strip (1) sets up respectively in the both sides of concrete test piece (3), one side that concrete test piece (3) were kept away from in filler strip (1) sets up to plane (12), two be provided with locating lever (2) between filler strip (1), locating lever (2) and filler strip (1) set up perpendicularly, locating lever (2) are two locating lever (2) relative and parallel arrangement in the both sides of concrete test piece (3), spacing groove (61) have been seted up along its axis direction in locating lever (2), filler strip (1) is pegged graft in the inside of spacing groove (61).
2. The concrete splitting tensile strength test detection device according to claim 1, wherein the contact ends of the filler strip (1) and the concrete test piece (3) are arranged as an arc surface (11).
3. The concrete splitting tensile strength test detection device according to claim 1, wherein the positioning rod (2) is arranged in a cross shape.
4. The concrete splitting tensile strength test detecting device according to claim 1, wherein the filler strip (1) comprises plywood or hard fiberboard.
5. The concrete splitting tensile strength test detecting device according to claim 1, wherein the length of the axis of the filler strip (1) is greater than the length of the concrete sample (3).
6. The concrete splitting tensile strength test detection device according to claim 1, wherein the positioning rod (2) is hollow, and a telescopic adjusting mechanism (5) for adapting to the distance between the two filler strips (1) is arranged inside the positioning rod (2).
7. The concrete splitting tensile strength test detecting device according to claim 6, wherein the telescopic adjusting mechanism (5) comprises a first adjusting arm (51) and a second adjusting arm (52) and a fixing component (53) for limiting the relative positions of the first adjusting arm (51) and the second adjusting arm (52), and the first adjusting arm (51) and the second adjusting arm (52) are arranged oppositely and parallelly.
8. The concrete splitting tensile strength test detecting device according to claim 7, wherein limiting plates (6) are respectively arranged at one ends of the first adjusting arm (51) and the second adjusting arm (52) which are located outside the positioning rod (2), and the two limiting plates (6) are oppositely arranged.
9. A concrete splitting tensile strength test detecting device according to claim 7, wherein, the two groups of telescoping adjusting mechanisms (5) are provided, the extending directions of the two groups of telescoping adjusting mechanisms (5) are intersected at a point, and the fixing component (53) can limit the movement of the two groups of telescoping adjusting mechanisms (5) at the same time.
10. The concrete splitting tensile strength test detecting device according to claim 9, wherein the fixing assembly (53) comprises a driving gear (531) arranged between a first adjusting arm (51) and a second adjusting arm (52) and a positioning screw (532) for limiting the rotation of the driving gear (531), the first adjusting arm (51) is provided with a first tooth slot (511) meshed with the driving gear (531), and the second adjusting arm (52) is provided with a second tooth slot (521) meshed with the driving gear (531); the end part of the positioning screw rod (532) is abutted with the driving gear (531).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021495279.2U CN212748536U (en) | 2020-07-25 | 2020-07-25 | Concrete splitting tensile strength test detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021495279.2U CN212748536U (en) | 2020-07-25 | 2020-07-25 | Concrete splitting tensile strength test detection device |
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| CN212748536U true CN212748536U (en) | 2021-03-19 |
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| CN202021495279.2U Active CN212748536U (en) | 2020-07-25 | 2020-07-25 | Concrete splitting tensile strength test detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117664731A (en) * | 2023-12-12 | 2024-03-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Axial tensile test device and axial tensile test method for high-strength high-toughness concrete |
-
2020
- 2020-07-25 CN CN202021495279.2U patent/CN212748536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117664731A (en) * | 2023-12-12 | 2024-03-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Axial tensile test device and axial tensile test method for high-strength high-toughness concrete |
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