CN215493603U

CN215493603U - Concrete shrinkage detection equipment

Info

Publication number: CN215493603U
Application number: CN202120857175.XU
Authority: CN
Inventors: 汤伟; 叶既央; 宋梦琦
Original assignee: Ningbo Zhenhai Jinglian Concrete Co ltd
Current assignee: Ningbo Zhenhai Jinglian Concrete Co ltd
Priority date: 2021-04-24
Filing date: 2021-04-24
Publication date: 2022-01-11
Anticipated expiration: 2031-04-24

Abstract

The application relates to a concrete shrinkage detection device, which relates to the technical field of concrete detection and comprises a bottom plate, a first side plate and a second side plate, wherein the first side plate is fixedly arranged at one end of the upper surface of the bottom plate in the length direction, the second side plate is arranged at one end of the bottom plate far away from the first side plate, the second side plate is provided with a detection probe for detecting a concrete member, one end of the bottom plate, which is just opposite to the second side plate, is provided with a sliding hole, the second side plate is fixedly provided with a sliding rod which is abutted to the sliding hole for sliding, the bottom of one side of the second side plate is provided with an adjusting groove, the adjusting groove is connected with an adjusting plate in a sliding manner, one end of the adjusting plate, which is positioned outside the adjusting groove, is fixedly provided with an extension plate, the side wall of the extension plate, which is close to the bottom plate, is provided with an inserting rod, the side wall of the bottom plate is provided with an inserting groove, when the second side plate is abutted to the bottom plate, the inserted link is located the inserting groove, and the regulating plate is located the adjustment tank, and this application has the effect that improves concrete member shrinkage detection accuracy.

Description

Concrete shrinkage detection equipment

Technical Field

The application relates to the technical field of concrete detection, in particular to concrete shrinkage detection equipment.

Background

Prestressed concrete is a concrete member in which tensile stress of the member is reduced by applying external force before the concrete bears a service load in order to prevent cracks of a reinforced concrete structure from occurring too early; whether prestressed concrete or ordinary concrete, the shrinkage of the sample needs to be detected after production.

In the related art, the device for detecting the concrete shrinkage comprises a bottom plate, two side plates, a detection probe and a number indicator, wherein the detection probe has the shrinkage capability, the two side plates are fixedly arranged at two end positions of the upper surface of the bottom plate, the detection probe penetrates one of the side plates and is positioned above the bottom plate, and the number indicator is connected with the detection probe and is used for displaying pressure number; during the use, put the concrete member on the bottom plate, and one end and curb plate butt, the other end and the test probe butt are measured many times to compare the registration of representative number table, detect the shrinkage of concrete member through the registration change volume.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that when the concrete shrinkage detection device performs shrinkage detection on concrete members with different specifications, the accuracy of the detection result is reduced due to poor adjustability of the detection device.

SUMMERY OF THE UTILITY MODEL

In order to improve because the controllability of check out test set is relatively poor, make the defect that the accuracy of testing result reduces, the application provides a concrete shrinkage check out test set.

The application provides a concrete shrinkage check out test set adopts following technical scheme:

the utility model provides a concrete shrinkage check out test set, comprising a base plate, first curb plate and second curb plate, first curb plate sets firmly the one end at bottom plate upper surface length direction, the second curb plate sets up the one end that the first curb plate was kept away from to the bottom plate, the second curb plate is provided with the detection probe that detects the concrete member, the hole of sliding has just been seted up to the one end of second curb plate to the bottom plate, the second curb plate sets firmly the slide bar that slides with the hole butt that slides, the adjustment tank has been seted up to second curb plate one side bottom, the sliding connection has the regulating plate in the adjustment tank, the one end that the regulating plate is located the adjustment tank outside has set firmly the extension board, the lateral wall that the extension board is close to the bottom plate has set firmly the spliced pole, the inserting groove has been seted up to the bottom plate lateral wall, when second curb plate and bottom plate butt, the spliced pole is located the inserting groove, the regulating plate is located the adjustment tank.

By adopting the technical scheme, the concrete member is placed on the bottom plate, one end of the concrete member is abutted against the first side plate, the second side plate is moved to be abutted against the end face of the bottom plate, the detection probe is abutted against the concrete member at the moment, the extension plate is moved again to be positioned in the insertion groove, and then the position of the second side plate is fixed, so that the stability of the position fixation of the second side plate is effectively improved, and the accuracy of the detection probe in detecting the shrinkage of the concrete member is improved; because the second side plate is moved to the position abutted with the bottom plate during each detection, after the concrete member is placed, the stable abutting of the detection probe to the concrete member is realized, the protection effect of the detection probe is improved, and the detection accuracy is also improved.

Optionally, regulating plate and the inseparable butt of adjustment tank inner wall, the one end that the regulating plate is located the adjustment tank has set firmly the anticreep board, and self open-ended inside wall has been kept away from to the adjustment tank has seted up the anticreep annular, and anticreep board and the butt of anticreep annular inner wall, when anticreep board and the inner wall butt that the anticreep annular is close to the extension board, the inserted bar separates with the inserting groove.

Through adopting above-mentioned technical scheme, to inserted bar and inserting groove separation back again, anticreep board and anticreep annular inside wall butt have effectually reduced the probability that the regulating plate breaks away from in the adjustment tank, have improved the stability that the regulating plate slided, and regulating plate and the inseparable butt of adjustment tank simultaneously restrict the rotation of effectual regulating plate, have further improved the stability that the regulating plate slided.

Optionally, the lateral wall at the place of adjustment tank has set firmly the otic placode on the second curb plate, and the otic placode upper surface slides and is connected with the locating lever, and the locating hole has been seted up to locating lever bottom and regulating plate upper surface butt, regulating plate upper surface, and when the locating lever was located the locating hole, the inserted link was located the inserting groove.

Through adopting above-mentioned technical scheme, be located the inserting groove at the plugboard, and the locating hole is relative to the time with the position of locating lever, inserts the locating lever in the locating hole, and the effectual position to the adjusting plate is fixed, has improved second curb plate and bottom plate rigidity's stability, and then has improved the accuracy nature that check out test set detected the concrete member shrink.

Optionally, the inner wall of the anti-loosening ring groove far away from the extension plate is fixedly provided with an opening spring, one end of the opening spring close to the extension plate is fixedly connected with the anti-loosening plate, and the opening spring is constantly in a compression state.

Through adopting above-mentioned technical scheme, when the locating lever broke away from the locating hole, the regulating plate drove the extension board and removed to the direction of keeping away from the bottom plate under the effect of opening the spring, and then made peg graft pole and inserting groove break away from, the effectual fixed efficiency of second curb plate and bottom plate contact that has improved.

Optionally, a moving hole is formed in the side wall of the second side plate opposite to the first side plate, the inner wall of the moving hole is abutted and slid along the vertical direction to form a moving plate, a first screw is connected to the upper surface of the second side plate in a threaded manner, the bottom end of the first screw is located in the moving hole and is connected with the top end of the moving plate in a rotating manner, the moving plate is driven to move together, and the detection probe is located on the side wall of the moving plate close to the first side plate.

Through adopting above-mentioned technical scheme, rotate first screw rod, first screw rod drives the movable plate and slides from top to bottom, and then adjusts detection probe's position, can effectually make detection probe be located effectual detection height, has improved the accuracy that detects the concrete shrinkage.

Optionally, two inner side walls opposite to the moving hole are provided with stabilizing grooves, and a stabilizing block abutted against the inner walls of the stabilizing grooves is fixedly arranged at a position where the moving plate faces the stabilizing grooves.

Through adopting above-mentioned technical scheme, when the movable plate slided, drive the steady piece and slide with the inner wall butt of stabilizing the groove, the effectual stable functionality that improves the movable plate and slided, and then improved the accuracy that the metal probe detected.

Optionally, the side wall of the first side plate, which faces away from the second side plate, is in threaded connection with a second screw, the second screw penetrates the first side plate and then is connected with a fastening plate in a rotating mode, the second screw drives the fastening plate to slide, and the bottom end of the fastening plate is tightly abutted to the upper surface of the bottom plate.

Through adopting above-mentioned technical scheme, rotate the second screw rod, the second screw rod drives the mounting plate and slides, and then makes the mounting plate can effectual and concrete member butt, the effectual accuracy that detects the concrete member shrinkage of different specifications that has improved.

Optionally, the fastening plate is provided with a limiting rod on a side wall close to the first side plate, the limiting rod penetrates through the first side plate, and the length direction of the limiting rod is parallel to the length direction of the second screw.

Through adopting above-mentioned technical scheme, when the mounting plate slided, drive the gag lever post and slide with first curb plate butt, further improved the stability that the mounting plate slided.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the concrete member is moved on the bottom plate, the second screw rod is rotated, the fastening plate is made to slide to the position where the detection probe can be abutted to the concrete member when the concrete member is abutted to the fastening plate, then the first screw rod is rotated, the moving plate is made to move, the detection probe can be abutted to the effective detection position of the concrete member, adjustment before detection is completed, and detection accuracy is improved;

2. the second side plate is moved to a position where the second side plate is abutted to the bottom plate, the extension plate is moved again, the insertion rod is located in the insertion groove, when the positioning plate corresponds to the positioning hole, the positioning rod is moved into the positioning hole, the second side plate is fixed to the bottom plate, the detection probe is effectively abutted to the concrete member at the moment, the protection effect on the detection probe is improved, and the accuracy of concrete shrinkage detection is also improved;

3. take out the locating lever from the constant head tank, the regulating plate drives the extension board and removes under the effect of opening the spring, and then makes the peg graft pole break away from the inserting groove in, has improved second curb plate and bottom plate and has removed fixed efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a partial cross-sectional view showing the adjustment assembly;

FIG. 3 is a partial cross-sectional view showing the securing assembly;

fig. 4 is a partial cross-sectional view showing the positioning assembly.

In the figure, 1, a bottom plate; 11. a support plate; 12. inserting grooves; 13. a sliding hole; 2. a first side plate; 3. a second side plate; 31. a slide bar; 32. moving the hole; 321. a stabilizing slot; 33. an adjustment groove; 331. an anti-drop ring groove; 4. a detection component; 41. detecting the probe; 42. displaying the table; 43. moving the plate; 431. a stabilizing block; 432. a first rod groove; 4321. a first ring groove; 5. calibrating the component; 51. a first screw; 511. a first ring plate; 52. a first wheel disc; 6. an adjustment assembly; 61. a second screw; 611. a second ring plate; 62. a second wheel disc; 63. a fastening plate; 631. a limiting rod; 632. a second rod groove; 633. a second ring groove; 7. a fixing assembly; 71. an adjusting plate; 711. an anti-drop plate; 712. opening the spring; 713. positioning holes; 714. positioning a groove; 72. an extension plate; 73. a plug rod; 8. a positioning assembly; 81. an ear plate; 82. positioning a rod; 821. tightly abutting against the ring plate; 822. and positioning the spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses concrete shrinkage detection equipment.

Referring to fig. 1 and 2, concrete shrinkage check out test set includes bottom plate 1, first curb plate 2 and

second curb plate

3, 1 level setting of bottom plate, the vertical setting of first curb plate 2, and with the one end department fixed connection of 1 upper surface of bottom plate, the vertical setting of second curb plate 3, lateral wall bottom that second curb plate 3 is close to bottom plate 1 has set firmly two slide bars 31, the terminal surface that first curb plate 2 was kept away from to bottom plate 1 has seted up sliding hole 13, slide bar 31 slides with 13 inner wall butts in sliding hole, 1 upper surface of bottom plate sets firmly backup pad 11 that a plurality of length direction are on a parallel with 1 upper surface width direction of bottom plate.

Second curb plate 3 is equipped with detection component 4 that contracts the concrete member and detect, and second curb plate 3 is equipped with and carries out position control's calibration subassembly 5 to detection component 4, is equipped with between second curb plate 3 and the bottom plate 1 and fixes second curb plate 3 at the fixed subassembly 7 with the position of bottom plate 1 butt, and first curb plate 2 is equipped with the adjusting part 6 that can make the concrete member of multiple specification carry out effective detection.

The concrete member is placed on the support plate 11, and the support plate 11 effectively supports the concrete member, so that the protection effect on the bottom plate 1 is improved; the position of the concrete member on the bottom plate 1 is adjusted through the adjusting assembly 6, so that the concrete member is moved to a position which can be effectively detected; the position of the detection assembly 4 is adjusted through the calibration assembly 5, the second side plate 3 is moved to enable the second side plate 3 to be abutted against the bottom plate 1, the second side plate 3 and the bottom plate 1 are mutually fixed through the fixing assembly 7, and the sliding rod 31 effectively improves the sliding stability of the second side plate 3; and finally, the concrete member is subjected to shrinkage detection through the detection assembly 4, so that the accuracy of shrinkage detection on the concrete member is improved.

Referring to fig. 2, the detecting assembly 4 includes a detecting probe 41, a display meter 42 and a moving plate 43, the second side plate 3 has a moving hole 32 at a position near the middle of the side wall of the first side plate 2, the moving plate 43 abuts against the inner wall of the moving hole 32 and slides along the vertical direction, a stabilizing groove 321 is formed in the inner side wall of the moving hole 32, and a stabilizing block 431 abutting against and sliding against the inner wall of the stabilizing groove 321 is fixedly arranged on the side wall of the moving plate 43. The detection probe 41 has a movable elastic expansion amount, the detection probe 41 is fixedly arranged at the middle position of the side wall of the moving plate 43 close to the first side plate 2, the detection end is far away from the moving plate 43, the dial indicator is fixedly arranged at the middle position of the side wall of the moving plate 43 far away from the detection probe 41, and the detection probe 41 is connected with the dial indicator; the calibration assembly 5 drives the moving plate 43 to slide vertically.

Calibration subassembly 5 includes first screw rod 51, first rim plate 52, the vertical setting of first screw rod 51, and with 3 upper surface intermediate position threaded connection of second curb plate, first screw rod 51 bottom is stretched into and is removed in the hole 32, first pole groove 432 have been seted up to movable plate 43 upper surface, first screw rod 51 rotates with first pole groove 432 inner wall and is connected, first annular 4321 has been seted up to first pole groove 432 inside wall bottom, first screw rod 51 bottom has set firmly first crown plate 511, first crown plate 511 and first annular 4321 inner wall butt, first rim plate 52 and first screw rod 51 top fixed connection.

The first wheel disc 52 is rotated, the first wheel disc 52 drives the first screw rod 51 to rotate, and further drives the moving plate 43 to move in the vertical direction, the first annular plate 511 effectively improves the stability of the first screw rod 51 driving the moving plate 43 to slide, so that the position of the detection probe 41 is adjusted, the efficiency of adjusting the position of the detection probe 41 is effectively improved, and the stability of the detection probe 41 in detecting the shrinkage of a concrete member is improved; the stabilizing plate is abutted and slid with the stabilizing groove 321, and the stability of sliding of the moving plate 43 is effectively improved.

In the process of moving the second side plate 3 to the bottom plate 1, the metal probes are gradually abutted to the concrete member, the protection effect on the detection probes 41 is improved, the stability of the detection probes 41 for detecting the concrete member is also improved, the detection result is displayed through the display table 42, and the efficiency of detecting the concrete shrinkage is improved.

Referring to fig. 1 and 2, the adjusting assembly 6 includes a second screw 61, a second wheel disc 62 and a fastening plate 63, the length direction of the second screw 61 is parallel to the length direction of the upper surface of the bottom plate 1, and the second screw 61 connects the first side plate 2 with the middle position of the side wall of the second side plate 3 in a threaded manner, and the second screw 61 connects the first side plate 2 with the middle position of the side wall of the fastening plate 63 in a rotating manner after penetrating through the first side plate 2; the second wheel disc 62 is fixedly connected with one end of the second screw 61 far away from the first side plate 2. The fastening plate 63 is cuboid, the bottom end of the fastening plate is abutted against the upper surface of the bottom plate 1, the side wall of the fastening plate 63, which is close to the first side plate 2, is provided with a second rod groove 632, the second screw rod 61 is rotatably connected with the second rod groove 632, the position, which is far away from the opening of the second rod groove 632, of the circumferential inner wall of the second rod groove 632 is provided with a second ring groove 633, and the circumferential outer wall of the second screw rod 61 is fixedly provided with a second ring plate 611 abutted against the inner wall of the second ring groove 633; the fastening plate 63 is close to the lateral wall bottom of first curb plate 2 and has set firmly gag lever post 631, and the length direction of gag lever post 631 is on a parallel with the length direction of second screw rod 61, and gag lever post 631 runs through first curb plate 2, and slides with 2 butts of first curb plate all the time.

After placing the concrete member in backup pad 11, rotate second rim plate 62, and then drive second screw 61 and rotate, second screw 61 drives mounting plate 63 through second crown plate 611 and slides, the in-process that mounting plate 63 slided, mounting plate 63 bottom slides with bottom plate 1 butt, gag lever post 631 slides with first curb plate 2 butt, the effectual stability that improves mounting plate 63 and slides, remove mounting plate 63 to the position that corresponds, make behind concrete member and the mounting plate 63 butt, second curb plate 3 can drive detecting probe 41 and concrete member butt, and then realized the detection to the concrete member of different specifications, the suitability of check out test set has been improved.

Referring to fig. 3 and 4, the fixing assembly 7 includes an adjusting plate 71, an extending plate 72, and a plug rod 73, the second side plate 3 has an adjusting groove 33 at the bottom of the side wall parallel to the self sliding direction, the adjusting plate 71 is tightly abutted to the inner wall of the adjusting groove 33, and slides along the direction perpendicular to the opening end face of the adjusting groove 33, the extending plate 72 is fixedly arranged at the end of the adjusting plate 71 outside the adjusting groove 33, and extends in the direction close to the bottom plate 1, the side wall of the extending plate 72 close to the bottom plate 1 is fixedly provided with two plug rods 73, the length direction of the plug rods 73 is parallel to the sliding direction of the adjusting plate 71, the side wall of the bottom plate 1 has two plug grooves 12, and the plug grooves 12 are used for the plug rods 73 to insert.

Anti-disengaging ring groove 331 has been seted up to the inner wall of self open-ended circumference far away from in adjustment groove 33, the one end that extension plate 72 was kept away from to adjustment plate 71 has set firmly the anti-disengaging plate 711 with the butt of anti-disengaging ring groove 331 inner wall, the one end that adjustment plate 71 was kept away from to anti-disengaging plate 711 has set firmly opening spring 712, opening spring 712 keeps away from the one end of anti-disengaging plate 711 and adjustment groove 33 and keeps away from self open-ended inner wall fixed connection, opening spring 712 is in compression state constantly, when anti-disengaging plate 711 is close to the inside wall butt of extension plate 72 with anti-disengaging ring groove 331, peg 73 separates with inserting groove 12. The second side plate 3 is provided with a positioning assembly 8 which fixes the position of the adjustment plate 71.

After the second side plate 3 abuts against the bottom plate 1, the extension plate 72 is moved, so that the adjusting plate 71 moves into the adjusting groove 33, meanwhile, the inserting rod 73 moves into the inserting groove 12, the position of the adjusting plate 71 is fixed through the positioning assembly 8, the second side plate 3 is effectively fixed with the bottom plate 1 through the inserting rod 73, and the detection accuracy of the detection probe 41 is improved; the adjusting plate 71 is tightly abutted to the inner wall of the adjusting groove 33, so that the rotation of the adjusting plate 71 is effectively limited, and the fixing capacity of the second side plate 3 and the bottom plate 1 is effectively improved. The positioning assembly 8 is used for releasing the position fixing of the adjusting plate 71, the anti-falling plate 711 is reset under the action of the opening spring 712, the adjusting plate 71 and the extending plate 72 are driven to slide together, the inserting rod 73 is separated from the inserting groove 12, the mutual fixing between the second side plate 3 and the bottom plate 1 is released, and the fixing releasing efficiency is improved; the anti-slip plate 711 effectively improves the stability of the slip of the adjusting plate 71.

Referring to fig. 4, the positioning assembly 8 includes an ear plate 81 and a positioning rod 82, the ear plate 81 is fixedly disposed on a side wall of the second side plate 3 where the adjusting groove 33 is located and located above the adjusting groove 33, the positioning rod 82 penetrates the ear plate 81 from a middle position of a top end of the ear plate 81, a fastening ring plate 821 is fixedly disposed at a position of an outer wall of the positioning rod 82 located below the ear plate 81, a positioning spring 822 is fixedly disposed on an upper surface of the fastening ring plate 821, a top end of the positioning spring 822 is fixedly connected with a lower surface of the ear plate 81, and a part of the positioning rod 82 is sleeved in the positioning spring 822; the upper surface of the adjusting plate 71 is provided with a positioning groove 714, the positioning spring 822 is constantly in a compressed state, and the bottom end of the positioning rod 82 is abutted against the inner wall of the positioning groove 714; positioning holes 713 are formed in the two ends of the positioning groove 714, and when the positioning rod 82 is located close to the positioning hole 713 of the extension plate 72, the inserting rod 73 is located in the inserting groove 12; when the positioning rod 82 is located away from the positioning hole 713 of the extension plate 72, the inserting rod 73 is disengaged from the inserting groove 12.

When the second side plate 3 is abutted against the bottom plate 1, the inserting rod 73 moves into the inserting groove 12, the positioning rod 82 is abutted against and slides on the inner wall of the positioning groove 714, and when the positioning rod 82 is positioned in the positioning hole 713 close to the extending plate 72 under the action of the positioning spring 822, the adjusting plate 71 is fixed in the inserting groove 12, so that the efficiency of fixing the position of the adjusting plate 71 is improved; after the positioning rod 82 is pulled up and the positioning rod 82 is separated from the positioning hole 713, the adjusting plate 71 further moves under the action of the opening spring 712, when the positioning rod 82 is aligned with the position of the positioning hole 713 far away from the extension plate 72, the positioning rod 82 is located in the positioning hole 713, and the efficiency of fixing the position where the plug rod 73 is separated from the plug hole is effectively improved.

The implementation principle of the concrete shrinkage detection equipment in the embodiment of the application is as follows: placing the concrete member on the support plate 11, aligning, rotating the second wheel disc 62 to rotate the second screw 61, and further driving the fastening plate 63 to move, so that the concrete member can be abutted to the detection probe 41 after the concrete member is abutted to the fastening plate 63; then, the first wheel disc 52 is rotated to enable the moving plate 43 to slide, so that the position of the detection probe 41 is adjusted, and the detection probe 41 can be effectively abutted against the middle position of the concrete member; make second curb plate 3 and bottom plate 1 butt again, pulling locating lever 82, remove regulating plate 71 again, when locating lever 82 is just to being close to the locating hole 713 of extension board 72, locating lever 82 is located locating hole 713 under positioning spring 822's effect, peg rod 73 is located the spliced eye, the effectual position to second curb plate 3 and bottom plate 1 is fixed, at this moment, detection probe 41 and the effective butt of concrete member, detect, the protection effect to detection probe 41 has been improved, the accuracy of detecting the concrete member shrink has still been improved.

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

1. A concrete shrinkage check out test set which characterized in that: comprises a bottom plate (1), a first side plate (2) and a second side plate (3), wherein the first side plate (2) is fixedly arranged at one end of the bottom plate (1) in the length direction of the upper surface, the second side plate (3) is arranged at one end of the bottom plate (1) far away from the first side plate (2), a detection probe (41) for detecting a concrete member is arranged on the second side plate (3), a sliding hole (13) is formed in one end of the bottom plate (1) just opposite to the second side plate (3), a sliding rod (31) which is abutted and slides against the sliding hole (13) is fixedly arranged on the second side plate (3), an adjusting groove (33) is formed in the bottom of one side of the second side plate (3), an adjusting plate (71) is connected in a sliding manner in the adjusting groove (33), an extending plate (72) is fixedly arranged at one end of the adjusting plate (71) positioned outside the adjusting groove (33), an inserting rod (73) is fixedly arranged on the side wall of the extending plate (72) close to the bottom plate (1), an inserting groove (12) is formed on the side wall of the bottom plate (1), when the second side plate (3) is abutted against the bottom plate (1), the insertion rod (73) is positioned in the insertion groove (12), and the adjusting plate (71) is positioned in the adjusting groove (33).

2. The concrete shrinkage detection apparatus of claim 1, wherein: adjusting plate (71) and adjusting groove (33) inner wall closely butt, the one end that adjusting plate (71) is located adjusting groove (33) has set firmly anticreep board (711), self open-ended inside wall has been kept away from in adjusting groove (33) has seted up anticreep annular groove (331), anticreep board (711) and anticreep annular groove (331) inner wall butt, when anticreep board (711) and anticreep annular groove (331) are close to the inner wall butt of extension board (72), peg graft pole (73) and inserting groove (12) separation.

3. A concrete shrinkage detection apparatus according to claim 2, wherein: the lateral wall that adjustment tank (33) place on second curb plate (3) has set firmly otic placode (81), and otic placode (81) upper surface slides and is connected with locating lever (82), and locating lever (82) bottom and regulating plate (71) upper surface butt have been seted up locating hole (713) on regulating plate (71), and when locating lever (82) were located locating hole (713), peg graft pole (73) were located inserting groove (12).

4. A concrete shrinkage detection apparatus according to claim 3, wherein: the inner wall of the anti-falling ring groove (331) far away from the extension plate (72) is fixedly provided with an opening spring (712), one end of the opening spring (712) close to the extension plate (72) is fixedly connected with the anti-falling plate (711), and the opening spring (712) is constantly in a compressed state.

5. The concrete shrinkage detection apparatus of claim 1, wherein: the second curb plate (3) just seted up removal hole (32) to the lateral wall of first curb plate (2), remove hole (32) inner wall and have movable plate (43) along vertical direction butt slip, second curb plate (3) upper surface threaded connection has first screw rod (51), first screw rod (51) bottom is located and moves hole (32) in and is connected with movable plate (43) top rotation to drive movable plate (43) and move together, detection probe (41) are located movable plate (43) and are close to on the lateral wall of first curb plate (2).

6. The concrete shrinkage detection apparatus of claim 5, wherein: two opposite inner side walls of the moving hole (32) are provided with stabilizing grooves (321), and a stabilizing block (431) abutted against the inner walls of the stabilizing grooves (321) is fixedly arranged at the position, opposite to the stabilizing grooves (321), of the moving plate (43).

7. The concrete shrinkage detection apparatus of claim 1, wherein: lateral wall threaded connection that first curb plate (2) is back to second curb plate (3) has second screw rod (61), and second screw rod (61) pierce through first curb plate (2) after the rotation be connected with mounting plate (63), and second screw rod (61) drive mounting plate (63) and slide, and mounting plate (63) bottom and bottom plate (1) upper surface closely butt.

8. The concrete shrinkage detection apparatus of claim 7, wherein: the lateral wall that fastening plate (63) are close to first curb plate (2) has set firmly gag lever post (631), and gag lever post (631) run through first curb plate (2), and length direction is parallel with second screw rod (61) length direction.