CN109443252B - Concrete core appearance is with straightness detecting system that hangs down - Google Patents
Concrete core appearance is with straightness detecting system that hangs down Download PDFInfo
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- CN109443252B CN109443252B CN201910010231.3A CN201910010231A CN109443252B CN 109443252 B CN109443252 B CN 109443252B CN 201910010231 A CN201910010231 A CN 201910010231A CN 109443252 B CN109443252 B CN 109443252B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention discloses a verticality detection system for a concrete core sample, and relates to the field of concrete detection. The system comprises a base and an installation pipe horizontally arranged on the base; the base is also vertically provided with a pair of detection plates which are distributed on two sides of the installation pipe, the pair of detection plates are parallel, and one sides close to each other are perpendicular to the upper end surface of the base; the middle part of the lower end face of the detection plate is provided with a dovetail block, the base is horizontally provided with a pair of dovetail grooves for the dovetail block to slide, a cavity communicated with the dovetail grooves is arranged in the base, and a driving mechanism for driving the dovetail block to slide is arranged in the cavity. The invention has the following advantages and effects: through the fixed core appearance of pick-up plate centre gripping to whether there is the clearance between the terminal surface through observing pick-up plate and core appearance, judge the straightness that hangs down of core appearance, perfect has replaced traditional guiding rule measurement mode, makes the straightness's that hangs down of core appearance testing process convenient and fast more.
Description
Technical Field
The invention relates to the field of concrete detection, in particular to a verticality detection system for a concrete core sample.
Background
The core drilling method for detecting concrete strength is a method for detecting concrete strength, which is to perform destructive core drilling sampling on a concrete body, detect a core sample after the core sample is processed by a tester and see whether the strength of the core sample meets the design requirements.
Traditional concrete core appearance needs to detect the straightness that hangs down of core appearance when detecting, if out of plumb between the terminal surface of core appearance and the axis, then should not carry out the compression test to the core appearance and detect. However, when the traditional core sample is used for detecting the verticality of the core sample, the core sample is usually placed on a flat ground, and then the core sample is detected by using the guiding ruler, so that the detection process is inconvenient and needs to be improved.
Disclosure of Invention
The invention aims to provide a verticality detection system for a concrete core sample, which has the effect of conveniently detecting the verticality of the core sample.
The technical purpose of the invention is realized by the following technical scheme: a verticality detection system for a concrete core sample comprises a base and an installation pipe horizontally arranged on the base; the base is also vertically provided with a pair of detection plates, the pair of detection plates are distributed on two sides of the installation pipe and are parallel, and one sides of the detection plates close to each other are perpendicular to the upper end face of the base; the dovetail block is arranged in the middle of the lower end face of the detection plate, a pair of dovetail grooves for the dovetail block to slide are horizontally arranged on the base, a cavity communicated with the dovetail grooves is formed in the base, and a driving mechanism for driving the dovetail block to slide is arranged in the cavity.
Through adopting above-mentioned technical scheme, when using above-mentioned detecting system to detect the straightness that hangs down of core appearance, violently put the core appearance to in the mounting tube to make the both ends of core appearance towards a pair of pick-up plate respectively. Then, a driving mechanism is used for driving the pair of dovetail blocks to be close to each other, the dovetail blocks drive the detection plate to move synchronously, and the detection plate pushes the core sample to slide along the inner part of the installation pipe. And (4) fixing the detection plates by using a driving mechanism until the two end faces of the core sample are pressed by the pair of detection plates. Observing whether a gap exists between the detection plate and the end face of the core sample, and if the gap exists, indicating that the end face of the core sample is not perpendicular to the axis; if there is no gap between the two, it indicates that the end face of the core sample is perpendicular to the axis. Compared with the traditional running rule measuring mode, the detection process of the system is easy and convenient, so that the detection process of the perpendicularity of the core sample is more convenient and quicker.
The invention is further provided with: the system also comprises a light illuminator positioned on one side of the base and a light curtain positioned on the other side of the base.
Through adopting above-mentioned technical scheme, after a pair of pick-up plate centre gripping fixed core appearance, open the light illuminator, the parallel light that the light illuminator jetted out this moment shines in entire system, and entire system and core appearance will form the projection on the light curtain this moment. Observing the projection, and if an optical seam appears between the detection plate and the end face of the core sample, indicating that the end face of the core sample is not perpendicular to the axis; if a sealed projection is formed between the detection plate and the end face of the core sample, the end face of the core sample is perpendicular to the axis. And then can be more audio-visual the straightness that hangs down of judgement core appearance, avoid the human eye to observe and the error appears, and then make the measurement process more accurate.
The invention is further provided with: the driving mechanism comprises a sliding block arranged in the cavity, one side of the sliding block is hinged with a pair of pull rods, and the pair of pull rods are respectively hinged with the side walls of the pair of dovetail blocks; the slider deviates from one side of pull rod is provided with the actuating lever, the lateral wall of base is provided with the confession the drive hole that the actuating lever wore to establish, the outer wall of base seat is provided with and is used for fixing the fixed part of actuating lever.
By adopting the technical scheme, when the pair of detection plates need to be driven to move, the fixing part is firstly removed, then the driving rod is pulled to move outwards or pushed to move inwards, and at the moment, the driving rod drives the sliding block to gradually get away from the dovetail block or gradually get close to the dovetail block. Meanwhile, the slide block pulls the pair of pull rods to move synchronously, so that the pull rods pull the dovetail blocks to be close to or far away, and the dovetail blocks can be used for driving the detection plate to move synchronously. And finally, locking the driving rod at the locking fixing part, so that the dovetail block and the detection plate can be fixed. The driving mechanism is simple in structure and convenient to operate, so that the adjusting process of the detection plate is easier and more convenient, and the measuring process of the whole system is easier and more convenient.
The invention is further provided with: the fixed part including set up in the fixed pipe of base lateral wall, and the actuating lever wears to establish lie in behind the fixed pipe fixed outside of managing, fixed pipe deviates from the one end circumference of base is provided with a plurality of flexure strips, the inner wall of flexure strip is provided with and is used for compressing tightly the elastic block of actuating lever outer wall, the outer wall threaded connection of flexure strip has the sliding sleeve, and sliding sleeve sliding connection in fixed outside of tubes wall.
Through adopting above-mentioned technical scheme, when the locking fixed part, fixed pipe is kept away from gradually to the rotating sliding sleeve, and the terminal that the elastic sheet was pressed to the sliding sleeve simultaneously is close to each other, and the elastic sheet drives the elastic block and compresses tightly the actuating lever outer wall gradually, and then fixes the actuating lever through the frictional force between elastic block and the actuating lever, accomplishes the locking of fixed part promptly. When the fixing part is removed, the rotating sliding sleeve moves towards the direction of the fixing pipe, the tail end of the elastic piece is opened outwards, and the elastic piece drives the elastic block to gradually keep away from the outer wall of the driving rod. When the elastic block is completely separated from the outer wall of the driving rod, the driving rod can be pulled to move, and the fixed part is released. The fixing part is simple in structure, and the locking and releasing processes are convenient and fast, so that the whole system measurement process is easier and more convenient.
The invention is further provided with: the outer wall of the driving rod is provided with a plurality of rings of pressing grooves for embedding the elastic blocks, and the pressing grooves are evenly distributed along the axial direction of the driving rod.
Through adopting above-mentioned technical scheme, supply the elastic block embedding through setting up the pressure tank, increase the frictional force between elastic block and the actuating lever outer wall for the elastic block can be more stable compress tightly in the actuating lever outer wall, improves connection stability between the two, avoids the fixed part not hard up phenomenon to appear.
The invention is further provided with: the elastic sheet deviates from the outer wall of one end of the fixed pipe is provided with a stop dog for the sliding sleeve side wall to abut against.
Through adopting above-mentioned technical scheme, block the sliding sleeve through setting up the dog, play spacing effect to the sliding sleeve, the biggest displacement distance of restriction sliding sleeve avoids the sliding sleeve to break away from the flexure strip, has improved the stability of fixed part when using.
The invention is further provided with: the mounting tube comprises a lower semicircular tube body and an upper semicircular tube body, one side of the upper tube body is hinged to the side wall of the lower tube body, a supporting plate is arranged on the other side of the upper tube body in an extending mode, a mounting plate for abutting against the supporting plate is arranged on the side wall of the lower tube body, and a locking portion for fixing the supporting plate is arranged on the mounting plate.
Through adopting above-mentioned technical scheme, when the installation core appearance, promote the backup pad and drive the body of going up and upwards overturn along articulated department, then place the core appearance on body down. And finally, pushing the upper pipe body to reversely turn over and buckle the upper pipe body to the lower pipe body, wherein the supporting plate is abutted against the mounting plate. Then utilize the locking part to be fixed in the backup pad on the mounting panel again, can realize the locking of body and body down, accomplish the dress of core appearance simultaneously and put. The structure of installation pipe is succinct, convenient to use to make the process of putting of core appearance lighter convenient.
The invention is further provided with: the locking part comprises a locking rod vertically arranged on the upper end face of the mounting plate and a locking block arranged in a long strip shape at the upper end of the locking rod, a locking hole for the locking block to penetrate is formed in the supporting plate in a penetrating mode, the locking block is rotatably connected to the locking rod, and the locking block is used for compressing the outer wall of the supporting plate after being rotated.
Through adopting above-mentioned technical scheme, when needs locking backup pad, along with the downward upset of backup pad, the locking piece imbeds gradually in the locking hole to slide along the locking hole inner wall. And after the supporting plate is abutted to the mounting plate, the locking block is separated from the locking hole, the locking block is rotated at the moment, the outer wall of the supporting plate is compressed by the locking block, and the supporting plate can be locked and fixed. The locking part is simple in structure, and the locking process is convenient and rapid, so that the core sample placing process is more convenient and rapid.
The invention is further provided with: the detection plate comprises a plate body and a glass sheet, wherein a clamping groove for the glass sheet to slide and be embedded is formed in one side, close to each other, of the plate body.
By adopting the technical scheme, after the detection plate is used for a long time, the side, close to each other, of the detection plate is worn, so that the detection precision of the core sample is influenced. Therefore, the detection plate is arranged to be a plate body and a glass plate, and the detection precision is improved through the flatness glass plate. And the glass plate can be replaced and detached at will, so that when the glass plate is damaged or abraded, the glass plate can be replaced in time to avoid detection errors, and the detection precision of the core sample is improved.
In conclusion, the invention has the following beneficial effects:
1. the core sample is clamped and fixed through the detection plate, and the perpendicularity of the core sample is judged by observing whether a gap exists between the detection plate and the end face of the core sample, so that the traditional running rule measuring mode is perfectly replaced, and the detection process of the perpendicularity of the core sample is more convenient and faster;
2. through the matching of the light illuminator and the light curtain and the observation of the projection on the light curtain, the verticality of the core sample can be judged more visually, errors caused by observation by human eyes are avoided, the measuring process is more accurate, and the detection precision of the core sample is improved;
3. the dovetail block is driven to slide by the driving mechanism which is simple in structure and convenient to operate, so that the adjusting process of the detection plate is easier and more convenient, and the measuring process of the whole system is easier and more convenient;
4. the installation pipe with simple structure and convenient use is used for placing the core sample, so that the core sample placing process is easier and more convenient;
5. through setting up the pick-up plate into plate body and glass board, utilize roughness glass board to improve the detection precision of core appearance, the dismantlement can be changed wantonly to the glass board simultaneously, consequently when damage or wearing and tearing appear in the glass board, can in time change the glass board to avoid appearing detection error, further improved the detection precision of core appearance.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is a schematic view of the internal structure of a base of the embodiment;
FIG. 3 is a schematic structural view of an installation tube of an embodiment;
fig. 4 is a schematic structural diagram of the fixing portion of the embodiment.
Reference numerals: 1. a base; 11. a dovetail groove; 12. a cavity; 13. a drive aperture; 2. installing a pipe; 21. a lower pipe body; 22. a pipe body is arranged; 23. a support plate; 24. mounting a plate; 25. a locking hole; 3. detecting a plate; 31. a dovetail block; 32. a plate body; 33. a glass sheet; 34. a card slot; 4. a drive mechanism; 41. a slider; 42. a pull rod; 43. a drive rod; 44. a compaction groove; 5. a light; 6. a light curtain; 7. a locking portion; 71. a locking lever; 72. a locking block; 8. a fixed part; 81. a fixed tube; 82. an elastic sheet; 83. an elastic block; 84. a sliding sleeve; 85. and a stop block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a verticality detection system for a concrete core sample comprises a base 1 and a mounting pipe 2 horizontally arranged on the base 1. Still vertical sliding connection has a pair of pick-up plate 3 on base 1, and a pair of pick-up plate 3 distributes in the both sides of installation tube 2.
As shown in fig. 1 and 2, a dovetail block 31 is provided on the lower end surface of the detection plate 3, a pair of dovetail grooves 11 for sliding the dovetail block 31 are horizontally provided on the base 1, a cavity 12 communicating with the dovetail grooves 11 is provided in the base 1, and a driving mechanism 4 for driving the dovetail block 31 to slide is provided in the cavity 12.
As shown in fig. 2, the detecting plate 3 includes a plate body 32 and an opaque glass sheet 33, and a clamping groove 34 for slidably inserting the glass sheet 33 is provided at a side where the plate body 32 is close to each other. The pair of glass plates are parallel to each other, and the sides close to each other are perpendicular to the upper end face of the base 1.
As shown in fig. 1, the system further comprises a light 5 on one side of the base 1 and a light curtain 6 on the other side of the base 1, wherein the light 5 in the embodiment is parallel and perpendicular to the axial direction of the mounting tube 2.
When the detection system is used, the core sample is firstly placed in the installation pipe 2, two ends of the core sample face the pair of detection plates 3 respectively, and then the glass plates are embedded into the clamping grooves 34 respectively. And then the driving mechanism 4 is used for driving the pair of dovetail blocks 31 to approach each other, and the pair of dovetail blocks 31 drive the pair of detection plates 3 to synchronously move and approach each other.
When the glass plate on the detection plate 3 is abutted against the end face of the core sample, the glass plate pushes the core sample to slide along the inner part of the installation pipe 2, and the core sample is corrected. And after the pair of glass plates completely press the end faces of the two ends of the core sample, fixing the pair of detection plates 3 by using a driving structure. At this time, the light 5 is turned on, and the entire system is irradiated with parallel light emitted from the light 5, and the entire system and the core pattern are projected on the light sheet 6.
Then observing projection, and if an optical seam appears between the glass plate and the end face of the core sample, indicating that the end face of the core sample is not vertical to the axis; if a closed projection is formed between the detection plate 3 and the end face of the core sample, the end face of the core sample is perpendicular to the axis, so that the perpendicularity of the core sample is visually judged.
As shown in fig. 3, the mounting tube 2 includes a semicircular lower tube 21 and a semicircular upper tube 22, one side of the upper tube 22 is hinged to the side wall of the lower tube 21, and the other side is extended with a support plate 23. The side wall of the lower pipe body 21 is provided with a mounting plate 24 against which the support plate 23 abuts, and the mounting plate 24 is provided with a locking part 7 for fixing the support plate 23.
When the core sample is loaded, the supporting plate 23 is pushed to drive the upper tube 22 to turn upwards along the hinged position, then the core sample is placed on the lower tube 21, and finally the upper tube 22 is pushed to turn reversely and is buckled on the lower tube 21. Until the supporting plate 23 abuts against the mounting plate 24, the supporting plate 23 is fixed on the mounting plate 24 by the locking part 7, so that the upper tube body 22 and the lower tube body 21 can be locked, and the core sample can be loaded and unloaded.
As shown in fig. 3, the locking portion 7 includes a locking rod 71 vertically disposed on the upper end surface of the mounting plate 24, and a long-strip-shaped locking block 72 disposed on the upper end of the locking rod 71, a locking hole 25 for the locking block 72 to penetrate is formed in the support plate 23, and the locking block 72 is rotatably connected to the locking rod 71 and is used for pressing the outer wall of the support plate 23 after rotating.
When the support plate 23 is turned downward, the locking block 72 is gradually inserted into the locking hole 25 and slides along the inner wall of the locking hole 25. Until the supporting plate 23 abuts against the mounting plate 24, the locking block 72 is just separated from the locking hole 25, at this time, the locking block 72 is rotated, the outer wall of the supporting plate 23 is pressed by the locking block 72, and the supporting plate 23 can be locked and fixed.
When the core sample needs to be taken out and disassembled, the locking block 72 is driven to rotate reversely until the periphery of the locking block 72 is flush with the locking hole 25, the supporting plate 23 is pushed to drive the upper pipe body 22 to turn upwards along the hinged position, and at the moment, the locking block 72 slides along the inner wall of the locking hole 25. The core sample is removed from the lower tubular body 21 until the upper tubular body 22 is completely opened.
As shown in fig. 2, the driving mechanism 4 includes a sliding block 41 disposed in the cavity 12, one side of the sliding block 41 is hinged with a pair of pull rods 42, and the pair of pull rods 42 are respectively hinged with the side walls of the pair of dovetail blocks 31. The lateral wall of base 1 is provided with drive hole 13, and the one side that slider 41 deviates from pull rod 42 is provided with actuating lever 43, and actuating lever 43 wears to establish and lies in the base 1 outside behind the drive hole 13 to the outer wall of base 1 seat is provided with the fixed part 8 that is used for fixed actuating lever 43.
When the pair of detection plates 3 needs to be driven to move, the fixing part 8 is firstly released, then the driving rod 43 is pulled to move outwards or the driving rod 43 is pushed to move inwards, and at the moment, the driving rod 43 drives the sliding block 41 to gradually get away from the dovetail block 31 or to gradually get close to the dovetail block 31.
Meanwhile, the slide block 41 pulls the pair of pull rods 42 to move synchronously and drives the dovetail block 31 to move close to or away from, and at the moment, the dovetail block 31 can be used for driving the detection plate 3 to move synchronously. After the position of the detection plate 3 is proper, the fixing part 8 is locked, so that the driving rod 43 can be locked, and the dovetail block 31 and the detection plate 3 can be fixed at the same time.
As shown in fig. 2 and 4, the fixing portion 8 includes a fixing tube 81 through which the driving rod 43 passes, one end of the fixing tube 81 is fixed to the outer wall of the base 1, and a plurality of elastic pieces 82 are circumferentially provided at the other end. The inner wall of the elastic piece 82 is provided with an elastic block 83 for pressing the outer wall of the driving rod 43, the outer wall of the driving rod 43 is provided with a plurality of turns of pressing grooves 44 for the elastic block 83 to be embedded in, and the plurality of turns of pressing grooves 44 are uniformly distributed along the axial direction of the driving rod 43.
As shown in fig. 4, the outer wall of the elastic sheet 82 is connected with a sliding sleeve 84 in a threaded manner, the sliding sleeve 84 is connected to the outer wall of the fixed pipe 81 in a sliding manner, and a stop 85 for abutting against the side wall of the sliding sleeve 84 is further arranged on the outer wall of one end of the elastic sheet 82 away from the fixed pipe 81.
When the fixing portion 8 is locked, the sliding sleeve 84 is rotated to gradually move away from the fixing tube 81, and simultaneously the sliding sleeve 84 presses the ends of the elastic pieces 82 to approach each other, the elastic pieces 82 drive the elastic blocks 83 to gradually insert into the pressing grooves 44 and press the outer wall of the driving rod 43. Until the side wall of the sliding sleeve 84 abuts against the stop 85, the sliding sleeve 84 stops rotating, and at this time, the driving rod 43 is fixed by the friction force between the elastic block 83 and the driving rod 43, and the locking of the fixing part 8 is completed.
When the fixing portion 8 is released, the rotating sliding sleeve 84 moves toward the fixing tube 81, and the end of the elastic piece 82 gradually opens outward, and the elastic piece 82 drives the elastic block 83 to gradually move away from the outer wall of the driving rod 43. When the elastic block 83 completely disengages from the pressing groove 44, the elastic block 83 no longer applies pressing force to the driving rod 43, and at this time, the driving rod 43 can be pulled to move, so that the fixed part 8 is released.
The working principle is as follows: when detecting the straightness that hangs down of core appearance, put the core appearance to the installation pipe 2 in, drive a pair of pick-up plate 3 and be close to each other again for a pair of pick-up plate 3 compresses tightly the both ends terminal surface of core appearance respectively. Then, the light 5 is turned on, and the parallel light emitted from the light 5 is irradiated to the whole system and forms a projection on the light curtain 6. Observing the projection, and if an optical seam appears between the detection plate 3 and the end face of the core sample, indicating that the end face of the core sample is not perpendicular to the axis; when a closed projection is formed between the detection plate 3 and the end face of the core sample, the end face of the core sample is perpendicular to the axis.
The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a concrete core appearance is with straightness detection device that hangs down which characterized in that: comprises a base (1) and a mounting pipe (2) horizontally arranged on the base (1); a pair of detection plates (3) is also vertically arranged on the base (1), the pair of detection plates (3) are distributed on two sides of the installation pipe (2), the pair of detection plates (3) are parallel, and one sides of the pair of detection plates close to each other are perpendicular to the upper end face of the base (1);
a dovetail block (31) is arranged in the middle of the lower end face of the detection plate (3), a pair of dovetail grooves (11) for the dovetail block (31) to slide are horizontally arranged on the base (1), a cavity (12) communicated with the dovetail grooves (11) is arranged in the base (1), and a driving mechanism (4) for driving the dovetail block (31) to slide is arranged in the cavity (12);
the device also comprises a light (5) positioned on one side of the base (1) and a light curtain (6) positioned on the other side of the base (1).
2. The verticality detection device for the concrete core sample according to claim 1, wherein: the driving mechanism (4) comprises a sliding block (41) arranged in the cavity (12), one side of the sliding block (41) is hinged with a pair of pull rods (42), and the pair of pull rods (42) are respectively hinged with the side walls of the pair of dovetail blocks (31); the slider (41) deviates from one side of pull rod (42) is provided with actuating lever (43), the lateral wall of base (1) is provided with the confession actuating hole (13) that actuating lever (43) wore to establish, the outer wall of base (1) seat is provided with and is used for fixing fixed part (8) of actuating lever (43).
3. The verticality detection device for the concrete core sample according to claim 2, wherein: fixed part (8) including set up in fixed pipe (81) of base (1) lateral wall, and actuating lever (43) are worn to establish be located behind fixed pipe (81) are outside, fixed pipe (81) deviate from the one end circumference of base (1) is provided with a plurality of flexure strips (82), the inner wall of flexure strip (82) is provided with and is used for compressing tightly elasticity piece (83) of actuating lever (43) outer wall, the outer wall threaded connection of flexure strip (82) has sliding sleeve (84), and sliding sleeve (84) sliding connection in fixed pipe (81) outer wall.
4. The verticality detection device for the concrete core sample according to claim 3, wherein: the outer wall of the driving rod (43) is provided with a plurality of circles of pressing grooves (44) for embedding the elastic blocks (83), and the pressing grooves (44) are evenly distributed along the axial direction of the driving rod (43).
5. The verticality detection device for the concrete core sample according to claim 4, wherein: the outer wall of one end, deviating from the fixed pipe (81), of the elastic sheet (82) is provided with a stop block (85) for abutting against the side wall of the sliding sleeve (84).
6. The verticality detection device for the concrete core sample according to claim 1, wherein: the mounting pipe (2) comprises a semicircular lower pipe body (21) and a semicircular upper pipe body (22), one side of the upper pipe body (22) is hinged to the side wall of the lower pipe body (21), a supporting plate (23) is arranged on the other side of the upper pipe body in an extending mode, a mounting plate (24) for the supporting plate (23) to abut against is arranged on the side wall of the lower pipe body (21), and a locking portion (7) used for fixing the supporting plate (23) is arranged on the mounting plate (24).
7. The verticality detection device for the concrete core sample according to claim 6, wherein: locking portion (7) including vertical set up in locking lever (71), the setting of mounting panel (24) up end locking lever (71) upper end rectangular shape locking piece (72), it supplies to run through on backup pad (23) locking hole (25) that locking piece (72) wore to establish, locking piece (72) rotate connect in locking lever (71), and rotate the back and be used for compressing tightly the outer wall of backup pad (23).
8. The verticality detection device for the concrete core sample according to claim 1, wherein: the detection plate (3) comprises a plate body (32) and a glass sheet (33), wherein a clamping groove (34) for the glass sheet (33) to be embedded in a sliding mode is formed in one side, close to each other, of the plate body (32).
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| CN203100678U (en) * | 2013-01-16 | 2013-07-31 | 上海维鲸视统工业自动化有限公司 | Line scanning vision measurement system measuring high accuracy dimension |
| CN103471526A (en) * | 2013-07-29 | 2013-12-25 | 中国原子能科学研究院 | Accurate parallelism-adjusting device and adjusting method |
| CN103673933A (en) * | 2013-11-29 | 2014-03-26 | 中国科学院上海光学精密机械研究所 | Long rail straightness measuring device |
| CN203929025U (en) * | 2014-04-04 | 2014-11-05 | 天津麦威逊科技开发有限公司 | Outside dimension, tapering, inclination angle Comprehensive Experiment measurement mechanism |
| CN104697474A (en) * | 2015-03-10 | 2015-06-10 | 无锡惠科电工高新技术有限公司 | Novel centering detecting device |
| CN107270834A (en) * | 2017-05-24 | 2017-10-20 | 大族激光科技产业集团股份有限公司 | Testing apparatus for verticality and up- coiler |
| CN206862269U (en) * | 2017-07-10 | 2018-01-09 | 镇江环太硅科技有限公司 | Semi-automatic detection crystalline substance brick end face squareness frock |
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