CN208109839U - Concrete frozen process experiment frost heave monitoring device - Google Patents
Concrete frozen process experiment frost heave monitoring device Download PDFInfo
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- CN208109839U CN208109839U CN201820620264.0U CN201820620264U CN208109839U CN 208109839 U CN208109839 U CN 208109839U CN 201820620264 U CN201820620264 U CN 201820620264U CN 208109839 U CN208109839 U CN 208109839U
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- cylinder
- monitoring rod
- monitoring
- pedestal
- rod
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Abstract
The utility model discloses concrete frozen process experiment frost heave monitoring devices, the present apparatus is equipped with preceding monitoring rod in front of concrete test block, rear is fixed with rear bearing sheet, left side is equipped with left support plate, right side is equipped with right monitoring rod, bottom is equipped with pedestal, top is equipped with upper monitoring rod, changing sensor is installed, changing sensor includes and the pressing plate of concrete test block fitting, the spring connecting with pressing plate, the stress induction piece connecting with the spring other end on each monitoring rod；All stress induction pieces are connect with controller.When frozen process experiment, concrete test block generates frost heave, and pressuring spring, spring forces stress induction piece, stress induction piece converts electric signal transmission to controller for pressure signal, and controller judges that concrete test block frost heave situation, monitoring result are accurate by electric signal.
Description
Technical field
The utility model relates to a kind of monitoring devices, and in particular to a kind of concrete frozen process experiment frost heave monitoring device belongs to
In concrete experiments apparatus field.
Background technique
Concrete refers to the cementing integral engineered composite material of aggregate by cementitious material.In bonding process, need
Increase suitable water, these water sections are stored in the gap in concrete material with free form, partially with hydrated state
It is stored in concrete material, when encountering low temperature, after these moisture freeze, volume becomes larger, thus from internal sabotage concrete
Structure.Macroscopically, concrete destruction show as volume swell, excoriation.This will lead to concrete strength reduction, service life drop
It is low.
In order to study the character shown under concrete low-temperature condition, need to carry out concrete frozen process experiment, and to mixed
Solidifying soil frost heave situation is monitored；Currently, concrete freezing-thawing test machine cannot be to concrete frost heave situation real-time monitoring, and do not have yet
There is the monitoring instrument specifically for concrete frost heave, and use conventional measurement method, error is larger, process is cumbersome.
Summary of the invention
The purpose of the utility model is to provide a kind of concrete frozen process experiment frost heave monitoring devices, can be in concrete freeze thawing
In experiment, the frost heave situation of real-time monitoring concrete, monitoring result is accurate.
To achieve the above object, the concrete frozen process experiment frost heave monitoring device that the utility model uses, including：Pedestal,
Incubator, refrigerator, refrigeration machine are located at incubator side, and pedestal is located in incubator；
The chassis left side is fixed with to be fixed with and the bottom with the vertical left support plate of the left edge of pedestal cooperation, rear
The vertical rear bearing sheet of the back edge cooperation of seat；
The left and right sides is respectively arranged with the first vertical cylinder, the second cylinder, pedestal rear or so two in front of the pedestal
Side is respectively arranged with vertical third cylinder, the 4th cylinder；It is fixed between first cylinder upper end and third cylinder upper end
First crossbeam is fixed with second cross beam between second cylinder upper end and the 4th cylinder upper end；
The present apparatus further includes having preceding monitoring rod, upper monitoring rod, right monitoring rod；
The preceding monitoring rod is horizontally disposed, left end is hinged on first cylinder, right end is movably fastened described second
On cylinder；Multiple changing sensors are installed on the antero-lateral rod；
The right monitoring rod is arranged vertically, lower end is hingedly fixed on the pedestal, upper end is movably fastened described second
On crossbeam, multiple changing sensors are installed on the right monitoring rod；
The upper monitoring rod is horizontally disposed, left end is hingedly fixed on the first crossbeam, right end is movably fastened described
On second cross beam, multiple changing sensors are installed on this on monitoring rod；
The changing sensor includes：Pressing plate, the spring being connect with pressing plate, the stress induction being connect with the spring other end
Piece；
All stress induction pieces are connect with controller.
Further, the changing sensor has the guiding mechanism cooperated with the spring.
Further, the preceding monitoring rod at least there are three, be evenly arranged up and down, the right monitoring rod at least there are three,
Be evenly arranged up and down, the upper monitoring rod at least there are three, front and back is evenly arranged.
Concrete test block is placed on pedestal, and left side and rear end face are limited admittedly by left support plate and rear bearing sheet respectively
Fixed, concrete test block top, front end face, right side are equipped with changing sensor；Pressing plate in changing sensor is close to concrete
Test block, stress induction piece are mounted on each monitoring rod；When carrying out frozen process experiment to concrete test block, concrete test block is generated
Frost heave, volume increase, pressuring spring, spring forces stress induction piece, and stress induction piece converts electric signal for pressure signal and passes
Controller is transported to, controller judges concrete test block frost heave situation by electric signal.Due to there are multiple changing sensors, pass through
Coordinate of the changing sensor on concrete test block is marked, so as to accurately measure the frost heave feelings of each position of concrete test block
Condition, as a result accurately.
Detailed description of the invention
Fig. 1 is the positive structure schematic of the utility model；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the changing sensor partial enlargement diagram of Fig. 1；
In figure：1. incubator, 11. refrigerators, 2. pedestals, 21. left support plates, 22. rear bearing sheets, 3. concrete test blocks,
41. the first cylinder, 42. second cylinders, 43. second cross beams, 44. the 4th cylinders, 45. third cylinders, 46. first crossbeams, on 51.
Monitoring rod, 53. right monitoring rods, 6. changing sensors, 61. pressing plates, 62. springs, 63. stress before monitoring rod, 511. through-holes, 52.
Sensing chip, 64. guide rods.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.For convenience of narration, with the left side of Fig. 1 be it is left,
Upper direction is before upper, vertical paper is outward, it is described below in "front", "rear", "left", "right", "upper", "lower" only indicate each
The relative positional relationship of a component, and should not be understood as the restriction to the utility model orientation.
As shown in Figures 1 to 4, concrete frozen process experiment frost heave monitoring device, including：Pedestal 2, incubator 1, refrigerator
11, refrigeration machine is located at 1 side of incubator, and pedestal 2 is located in incubator 1.
It is fixed on the left of pedestal 2 and is fixed with and the bottom with the vertical left support plate 21 of the left edge of the pedestal 2 cooperation, rear
The vertical rear bearing sheet 22 of the back edge cooperation of seat 2；Concrete test block 3 is cube, is placed on pedestal 2, left support plate 21
Limit is supported to concrete test block 3 with rear bearing sheet 22.
The 2 front left and right sides of pedestal is respectively arranged with the first vertical cylinder 41, the second cylinder 42,2 rear of pedestal or so
Two sides are respectively arranged with vertical third cylinder 45, the 4th cylinder 44；Between 45 upper end of first cylinder, 41 upper end and third cylinder
It is fixed with first crossbeam 46, is fixed with second cross beam 43 between 42 upper end of the second cylinder and 44 upper end of the 4th cylinder.
The present apparatus further includes having preceding monitoring rod 52, upper monitoring rod 51, right monitoring rod 53；
Preceding monitoring rod 52 is horizontally disposed, left end is hinged on the first cylinder 41, right end is movably fastened on the second cylinder 42；
Multiple changing sensors 6 are installed on antero-lateral rod；The preceding monitoring rod 52 is located at 3 front of concrete test block, monitoring rod 52 before being mounted on
On changing sensor 6 be used to monitor the deformation of 3 front end face of concrete test block.
Right monitoring rod 53 is arranged vertically, lower end is hingedly fixed on pedestal 2, upper end is movably fastened on second cross beam 43,
Multiple changing sensors 6 are installed on the right monitoring rod 53；The right monitoring rod 53 is located at the right side of concrete test block 3, is mounted on
Changing sensor 6 on right monitoring rod 53 is used to monitor the deformation of 3 right side of concrete test block.
Upper monitoring rod 51 is horizontally disposed, left end is hingedly fixed on first crossbeam 46, right end is movably fastened in second cross beam
On 43, multiple changing sensors 6 are installed on this on monitoring rod 51；Monitoring rod 51 is located at the top of concrete test block 3 on this, peace
It is used to monitor the deformation of 3 right side of concrete test block mounted in the changing sensor 6 of upper monitoring rod 51.
All monitoring rods can rotate, when placing concrete test block 3, by monitoring rod Unscrew, concrete examination
Block 3 is placed on pedestal 2, is then closed each monitoring rod.
As shown in figure 4, changing sensor 6 connects including pressing plate 61, the spring 62 connecting with pressing plate 61, with 62 other end of spring
The stress induction piece 63 connect；All stress induction pieces 63 are connect with controller.Pressing plate 61 in changing sensor 6 is close to coagulation
Native test block 3, stress induction piece 63 are mounted on each monitoring rod.
When carrying out frozen process experiment to concrete test block 3, by monitoring rod Unscrew, concrete test block 3 is placed on pedestal 2
On, it is then closed each monitoring rod, the pressing plate 61 in changing sensor 6 is close to concrete test block 3, and spring 62 compresses, to stress
Sensing chip 63 generates certain pressure, and stress induction piece 63 converts electric signal transmission to controller for pressure signal；Pass through refrigeration
When device 11 carries out multigelation to concrete test block 3, concrete test block 3 generates frost heave, and volume increases, further pressuring spring
62, the electric signal that stress induction piece 63 generates changes, and controller judges that concrete test block 3 freezes by the variation of electric signal
Swollen situation.
Left side, front end face, the upper surface of concrete test block 3 are the scope of freedom, when 3 frost heave of concrete test block generates deformation
When, 3 volume of concrete test block is shown as in the rectangular upper increase in the scope of freedom.The scope of freedom of concrete test block 3 is provided with monitoring rod,
Multiple changing sensors 6 are installed on each monitoring rod, by marking coordinate of the changing sensor 6 on concrete test block 3, from
And the frost heave situation of each position of concrete test block 3 can be accurately measured, as a result accurately.
Further, changing sensor 6 has the guiding mechanism cooperated with spring 62.Fig. 4 gives the guiding mechanism
One embodiment, guiding mechanism include the through-hole 511 being arranged on preceding monitoring rod 52, leading across the through-hole 511 and spring 62
To bar 64,64 terminal of guide rod and pressing plate 61 are fixed, and stress induction piece 63 is located at 62 upper end of spring, 63 middle part of stress induction piece
Equipped with the hole that guide rod 64 can be allowed to pass through, the beginning of guide rod 64 is installed with spacer pin, after thus it can be prevented that spring 62 is pressurized
Bending, increases the accuracy of measurement result.The guiding mechanism 64 or the telescopic rod for being fixed on spring 62, or package bullet
The extension sleeve of spring 62.
Further, preceding monitoring rod 52 at least there are three, be evenly arranged up and down, right monitoring rod 53 at least there are three, up and down
Be evenly arranged, upper monitoring rod 51 at least there are three, front and back is evenly arranged；Thus, it is possible to the deformation of multiple spot monitoring concrete test block 3
Situation；In the embodiment that Fig. 1 to 3 is provided, preceding monitoring rod is equipped with 3, and right monitoring rod is equipped with 4, and upper monitoring rod 51 is equipped with 4
It is a, it also can according to need and adjust its quantity.
Claims (3)
1. concrete frozen process experiment frost heave monitoring device, including：Pedestal (2), incubator (1), refrigerator (11), refrigeration machine is located at
Incubator (1) side, pedestal (2) are located in incubator (1)；It is characterized in that：
It is fixed on the left of the pedestal (2) and is fixed with the vertical left support plate (21) of the left edge of the pedestal (2) cooperation, rear
The vertical rear bearing sheet (22) cooperated with the back edge of the pedestal (2)；
The left and right sides is respectively arranged with vertical the first cylinder (41), the second cylinder (42), pedestal (2) in front of the pedestal (2)
Vertical third cylinder (45), the 4th cylinder (44) are respectively arranged at left and right sides of rear；First cylinder (41) upper end and
It is fixed with first crossbeam (46) between third cylinder (45) upper end, the second cylinder (42) upper end and the 4th cylinder (44) upper end
Between be fixed with second cross beam (43)；
The present apparatus further includes having preceding monitoring rod (52), upper monitoring rod (51), right monitoring rod (53)；
The preceding monitoring rod (52) is horizontally disposed, left end is hinged on first cylinder (41), right end is movably fastened described
On second cylinder (42)；Multiple changing sensors (6) are installed on the antero-lateral rod；The right monitoring rod (53) vertically arrangement, under
End is hingedly fixed on the pedestal (2), upper end is movably fastened on the second cross beam (43), is pacified on the right monitoring rod (53)
Equipped with multiple changing sensors (6)；The upper monitoring rod (51) is horizontally disposed, left end is hingedly fixed in the first crossbeam (46)
Upper, right end is movably fastened on the second cross beam (43), and multiple changing sensors (6) are equipped on monitoring rod (51) on this；
The changing sensor (6) includes：Pressing plate (61), the spring (62) being connect with pressing plate (61) and spring (62) other end
The stress induction piece (63) of connection；All stress induction pieces (63) connect with controller.
2. concrete frozen process experiment frost heave monitoring device according to claim 1, it is characterised in that：The changing sensor
(6) there is the guiding mechanism cooperated with the spring (62).
3. concrete frozen process experiment frost heave monitoring device according to claim 1 or 2, it is characterised in that：Monitoring before described
Bar (52) at least there are three, be evenly arranged up and down, the right monitoring rod (53) at least there are three, be evenly arranged up and down, it is described on
Monitoring rod (51) at least there are three, front and back is evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820620264.0U CN208109839U (en) | 2018-04-27 | 2018-04-27 | Concrete frozen process experiment frost heave monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820620264.0U CN208109839U (en) | 2018-04-27 | 2018-04-27 | Concrete frozen process experiment frost heave monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208109839U true CN208109839U (en) | 2018-11-16 |
Family
ID=64117484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820620264.0U Expired - Fee Related CN208109839U (en) | 2018-04-27 | 2018-04-27 | Concrete frozen process experiment frost heave monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208109839U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238360A (en) * | 2020-01-23 | 2020-06-05 | 天津大学 | Deformation tester for cement-based material under dry-wet circulation action |
| CN111487155A (en) * | 2020-04-08 | 2020-08-04 | 河海大学 | Method for testing frost heaving stress resolution effect of asphalt mixture communicated pores |
| CN115266805A (en) * | 2022-07-20 | 2022-11-01 | 青海省地质环境监测总站 | Automatic frozen soil freeze-thawing monitoring system and monitoring method |
-
2018
- 2018-04-27 CN CN201820620264.0U patent/CN208109839U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238360A (en) * | 2020-01-23 | 2020-06-05 | 天津大学 | Deformation tester for cement-based material under dry-wet circulation action |
| CN111238360B (en) * | 2020-01-23 | 2021-04-27 | 天津大学 | Deformation tester for cement-based material under dry-wet circulation action |
| CN111487155A (en) * | 2020-04-08 | 2020-08-04 | 河海大学 | Method for testing frost heaving stress resolution effect of asphalt mixture communicated pores |
| CN111487155B (en) * | 2020-04-08 | 2021-06-08 | 河海大学 | Method for testing frost heaving stress resolution effect of asphalt mixture communicated pores |
| CN115266805A (en) * | 2022-07-20 | 2022-11-01 | 青海省地质环境监测总站 | Automatic frozen soil freeze-thawing monitoring system and monitoring method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20190427 |