CN207816876U - Concrete shrinkage test device under a kind of water bath with thermostatic control environment - Google Patents
Concrete shrinkage test device under a kind of water bath with thermostatic control environment Download PDFInfo
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- CN207816876U CN207816876U CN201820223842.7U CN201820223842U CN207816876U CN 207816876 U CN207816876 U CN 207816876U CN 201820223842 U CN201820223842 U CN 201820223842U CN 207816876 U CN207816876 U CN 207816876U
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- pedestal
- laid
- guide rod
- water bath
- frame body
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Abstract
The utility model discloses concrete shrinkage test devices under a kind of water bath with thermostatic control environment, including frame body, constant temperature system in the placement plate and frame body that frame body moves up and down, frame body includes the riser of pedestal and pedestal surrounding, chassis interior is equipped with lifting regulating mechanism, base upper surface quadrangle is laid with guide rod and lead screw respectively, the guide rod and screw mandrel top are laid with top plate, riser outer middle side part in front is laid with display, the via and screw hole that placement plate is laid by its four corners are linked on guide rod and lead screw, placement plate upper surface is equipped with positioning plate, it is threaded with clamping bar on the positioning plate, described clamping bar one end is equipped with clamping lever, the other end is equipped with pressure plate, constant temperature system includes the temperature sensor for being laid in placement plate lower surface, the heating wire being laid in guide rod and the control unit being fixed in pedestal；The utility model provide it is a kind of it is simple in structure, measure reliable, measuring accuracy meets concrete shrinkage test device under the water bath with thermostatic control environment of code requirement.
Description
Technical field
The utility model is related to concrete under construction material physical property technical field more particularly to a kind of water bath with thermostatic control environment to receive
Contracting test device.
Background technology
The contraction of underwater concrete is the main cause for causing material itself to crack under water, and the presence in crack directly affects structure
Durability and safety.It is by adding additive, and any type concrete mix to improve the main path shunk at present
Whether underwater shrinkage, which meets code requirement, is tested.Condensation cure reaction process can occur after concreting
Volume contraction deforms.The vertical free wxpansion shrinkage of cement slurry, the free shrink performance of especially early age are that synthesis is commented
The important technology index of valence crack-resistant performance of concrete prevents structure crack, raising overall structure certainly anti-concrete Underwater Engineering
Water effect is of great significance.
The concrete shrinkage tester volume sold currently on the market is heavy, involves great expense.And concrete when can be because measuring
The loosening of the inclination of contractibility and measuring instrumentation positioning influences measurement accuracy.
Therefore, it is necessary to concrete shrinkage test devices under a kind of water bath with thermostatic control environment that can solve problem above.
Utility model content
The purpose of the utility model is to overcome existing deficiency, provide it is a kind of it is simple in structure, measure reliable, measuring accuracy
Meet concrete shrinkage test device under the water bath with thermostatic control environment of code requirement.
To achieve the above object, technical solution used by the utility model is：
Concrete shrinkage test device under a kind of water bath with thermostatic control environment, including frame body, the placement plate that is moved up and down along frame body
With the constant temperature system in frame body；
The frame body includes the riser of pedestal and pedestal surrounding, and the pedestal is in hollow cube, and chassis interior, which is equipped with, to be risen
Regulating mechanism drops, and base upper surface quadrangle is laid with guide rod and lead screw respectively, and the guide rod and screw mandrel top are laid with top plate, institute
Lower end of the guide rod and upper end is stated to be fixedly connected with base upper surface and top plate lower surface respectively, the screw lower end and upper end respectively with
Pedestal is connected with top panel turns, and the lifting regulating mechanism includes the drive link being connect respectively with base rotation and chassis interior silk
The worm screw laid on bar, described drive link one end pass through pan frontward end and are equipped with rotating handle in its end point, and drive link is the bottom of at
Seat is internally provided with worm gear, and the worm gear is engaged with worm screw, and the riser is laid in base upper surface surrounding, between riser and riser
It is sealedly and fixedly connected between base upper surface, riser outer middle side part in front is laid with display；
The via and screw hole that the placement plate is laid by its four corners are linked on guide rod and lead screw, placement plate upper surface
Equipped with positioning plate, clamping bar is threaded on the positioning plate, described clamping bar one end is equipped with clamping lever, the other end is equipped with
Pressure plate；
The constant temperature system includes the temperature sensor for being laid in placement plate lower surface, is laid in guide rod heating wire and
The control unit being fixed in pedestal, the guide rod are in hollow cylinder, and the heating wire is located at guide rod boring, described
Control unit includes single chip microcontroller, timer and solenoid valve, the single chip microcontroller respectively with display, thousand points of number
Table, timer and solenoid valve electrical connection, the solenoid valve are electrically connected with heating wire.
Further, the quantity of the guide rod and lead screw is respectively three and one.
Further, the digital dial gauge lower part fixes rod outer surface and is equipped with screw thread, is fixed by locking nut
On top plate top.
Further, the positioning plate is two symmetrically laid.
Further, the temperature sensor and digital dial gauge are electrically connected with display.
Further, the temperature sensor and timer are connected to the input port of single chip microcontroller, solenoid valve connection
To the delivery outlet of single chip microcontroller, display and digital dial gauge are connected to the communication port of single chip microcontroller.
The utility model has the beneficial effects that：
1. digital dial gauge is fixed on frame body top, placement plate is moved up and down along frame body, is adjusted by lifting regulating mechanism
Placement plate rises or falls.Placement plate need to be only adjusted when measuring every time to be put into concrete shrinkage part, measuring digital thousand
Table is divided not have to adjust after fixation, the stability of the measuring part of guarantee improves measurement accuracy.
2. placement plate upper surface is symmetrically laid with positioning plate, clamping bar is threaded on positioning plate, clamping bar one end is set
There are clamping lever, the other end to be clamped by clamping bar after concrete shrinkage part is placed in placement plate equipped with pressure plate, no
It can tilt because concrete shrinkage part places bad generation and influence measurement data, improve the stability and precision of measurement.
3. being equipped with constant temperature system in frame body, temperature is controlled using heating wire, heating wire is located in guide rod, and passes through display
Device instant playback water temperature and shrinkage, it is simple in structure, it is easy to use.
Description of the drawings
Fig. 1 is the structure front view of concrete shrinkage test device under a kind of water bath with thermostatic control environment of the utility model.
Fig. 2 is section view at A-A in Fig. 1 of concrete shrinkage test device under a kind of water bath with thermostatic control environment of the utility model
Figure.
Fig. 3 is the vertical view of concrete shrinkage test device under a kind of water bath with thermostatic control environment of the utility model.
Fig. 4 is section view at B-B in Fig. 1 of concrete shrinkage test device under a kind of water bath with thermostatic control environment of the utility model
Figure.
Fig. 5 is the electrical connection diagram of concrete shrinkage test device under a kind of water bath with thermostatic control environment of the utility model.
Attached figure label is：1 is digital dial gauge, and 2 be placement plate, and 3 be pedestal, and 4 be guide rod, and 5 be lead screw, and 6 be top plate,
7 be drive link, and 8 be worm screw, and 9 be worm gear, and 10 be rotating handle, and 11 be positioning plate, and 12 be clamping bar, and 13 be clamping lever, 14
It is locking nut for pressure plate, 15,16 be riser, and 17 be display, and 18 be temperature sensor, and 19 be heating wire, and 20 in order to control
Unit, 21 be single chip microcontroller, and 22 be timer, and 23 be solenoid valve.
Specific implementation mode
Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ Fig. 5, concrete shrinkage test device under a kind of water bath with thermostatic control environment, including frame body, along frame body
Constant temperature system in the placement plate 2 and frame body of lower movement；
The frame body includes the riser 16 of 3 surrounding of pedestal 3 and pedestal, and the pedestal 3 is in hollow cube, inside pedestal 3
Equipped with lifting regulating mechanism, 3 upper surface quadrangle of pedestal is laid with guide rod 4 and lead screw 5,5 top cloth of the guide rod 4 and lead screw respectively
Equipped with top plate 6,4 lower end of the guide rod and upper end are fixedly connected with 3 upper surface of pedestal and 6 lower surface of top plate respectively, the lead screw 5
Lower end and upper end are rotatablely connected with pedestal 3 and top plate 6 respectively, and the lifting regulating mechanism includes being rotatablely connected respectively with pedestal 3
3 inside lead screw 5 of drive link 7 and pedestal on the worm screw 8 laid, 7 one end of the drive link passes through 3 front end of pedestal and in its end
Place is equipped with rotating handle 10, and drive link 7 is internally provided with worm gear 9 in pedestal 3, and the worm gear 9 is engaged with worm screw 8, the riser 16
It is laid in 3 upper surface surrounding of pedestal, is sealedly and fixedly connected between 3 upper surface of riser 16 and pedestal between riser 16, front
16 outer middle side part of riser is laid with display 17；
The via and screw hole that the placement plate 2 is laid by its four corners are linked on guide rod 4 and lead screw 5, in placement plate 2
Surface is equipped with positioning plate 11, and clamping bar 12 is threaded on the positioning plate 11, and 12 one end of the clamping bar, which is equipped with, clamps hand
Handle 13, the other end are equipped with pressure plate 14；
The constant temperature system includes the temperature sensor 18 for being laid in 2 lower surface of placement plate, the electric heating being laid in guide rod 4
Silk 19 and the control unit 20 being fixed in pedestal 3, the guide rod 4 are in hollow cylinder, and the heating wire 19 is located in guide rod 4
Portion's hollow position, described control unit 20 include single chip microcontroller 21, timer 22 and solenoid valve 23, the single chip microcontroller
21 are electrically connected with display 17, digital dial gauge 1, timer 22 and solenoid valve 23 respectively, the solenoid valve 23 and heating wire 19
Electrical connection.
The quantity of the guide rod 4 and lead screw 5 is respectively three and one.
1 lower part of the digital dial gauge fixes rod outer surface and is equipped with screw thread, and top plate 6 is fixed in by locking nut 15
Top.
The positioning plate 11 is two symmetrically laid.
The temperature sensor 18 and digital dial gauge 1 are electrically connected with display 17.
The temperature sensor 18 and timer 22 are connected to the input port of single chip microcontroller 21, and solenoid valve 23 is connected to
The delivery outlet of single chip microcontroller 21, display 17 and digital dial gauge 1 are connected to the communication port of single chip microcontroller 21.
Before measurement, first locking nut 15 is linked on digital dial gauge 1, then digital dial gauge 1 is threaded io top
Plate 6 tightens locking nut 15 in the position of digital dial gauge 1 just forward-facing, and digital dial gauge 1 is made to fix on the top plate 6.
When measuring concrete shrinkage part, rotating handle 10 is rotated, drive link 7 is made to drive 5 turns of lead screw by worm gear 9, worm screw 8
Dynamic, lead screw 5 drives placement plate 2 to decline, and concrete shrinkage part is put into 2 upper surface of placement plate, clamping lever 13 is rotated, makes clamping
Bar 12 drives pressure plate 14 to be close to concrete shrinkage part, and then reversely rotating rotating handle 10 makes placement plate 2 rise, in concrete
Contractibility stops when contacting 1 thimble of digital dial gauge, and pure water is then perfused into frame body, concrete shrinkage part is made to be in liquid level
Hereinafter, according to the temperature data that temperature sensor 18 provides, single chip microcontroller 21 controls heating wire 19 by solenoid valve 23
Folding makes liquid in frame body keep constant temperature, and in the condensation cure reaction process of concrete shrinkage part, digital dial gauge 1 is read
The difference of concrete shrinkage part contraction is simultaneously sent to single chip microcontroller 21, the liquid temperature that single chip microcontroller 21 will detect
The data such as degree, shrinkage difference value and test period pass through 17 instant playback of display.
The embodiment of the above, the only preferred embodiment of the utility model not limit the utility model
Practical range, therefore the equivalent change or modification that all structure, feature and principles according to described in the utility model patent range are done,
It should be included in present utility model application the scope of the claims.
Claims (6)
1. concrete shrinkage test device under a kind of water bath with thermostatic control environment, which is characterized in that moved up and down including frame body, along frame body
Placement plate（2）With the constant temperature system in frame body；
The frame body includes pedestal（3）And pedestal（3）The riser of surrounding（16）, the pedestal（3）In hollow cube, pedestal
（3）It is internally provided with lifting regulating mechanism, pedestal（3）Upper surface quadrangle is laid with guide rod respectively（4）And lead screw（5）, the guide rod
（4）And lead screw（5）Top is laid with top plate（6）, the guide rod（4）Lower end and upper end respectively with pedestal（3）Upper surface and top plate
（6）Lower surface is fixedly connected, the lead screw（5）Lower end and upper end respectively with pedestal（3）And top plate（6）Rotation connection, the liter
Drop regulating mechanism include respectively with pedestal（3）The drive link of rotation connection（7）And pedestal（3）Internal lead screw（5）The snail of upper laying
Bar（8）, the drive link（7）One end passes through pedestal（3）Front end and its end point be equipped with rotating handle（10）, drive link（7）
In pedestal（3）It is internally provided with worm gear（9）, the worm gear（9）With worm screw（8）Engagement, the riser（16）It is laid in pedestal（3）On
Surface surrounding, riser（16）Between and riser（16）With pedestal（3）It is sealedly and fixedly connected between upper surface, front riser（16）
Outer middle side part is laid with display（17）；
The placement plate（2）The via and screw hole laid by its four corners are linked in guide rod（4）And lead screw（5）On, placement plate
（2）Upper surface is equipped with positioning plate（11）, the positioning plate（11）On be threaded with clamping bar（12）, the clamping bar（12）One
End is equipped with clamping lever（13）, the other end be equipped with pressure plate（14）；
The constant temperature system includes being laid in placement plate（2）The temperature sensor of lower surface（18）, be laid in guide rod（4）Interior electricity
Heated filament（19）Be fixed on pedestal（3）Interior control unit（20）, the guide rod（4）In hollow cylinder, the heating wire
（19）Positioned at guide rod（4）At boring, described control unit（20）Including single chip microcontroller（21）, timer（22）And electricity
Magnet valve（23）, the single chip microcontroller（21）Respectively with display（17）, digital dial gauge（1）, timer（22）And electromagnetism
Valve（23）Electrical connection, the solenoid valve（23）With heating wire（19）Electrical connection.
2. concrete shrinkage test device under a kind of water bath with thermostatic control environment according to claim 1, which is characterized in that described
Guide rod（4）And lead screw（5）Quantity be respectively three and one.
3. concrete shrinkage test device under a kind of water bath with thermostatic control environment according to claim 1, which is characterized in that described
Digital dial gauge（1）Lower part fixes rod outer surface and is equipped with screw thread, passes through locking nut（15）It is fixed in top plate（6）Top.
4. concrete shrinkage test device under a kind of water bath with thermostatic control environment according to claim 1, which is characterized in that described
Positioning plate（11）For two symmetrically laid.
5. concrete shrinkage test device under a kind of water bath with thermostatic control environment according to claim 1, which is characterized in that described
Temperature sensor（18）And digital dial gauge（1）And display（17）Electrical connection.
6. concrete shrinkage test device under a kind of water bath with thermostatic control environment according to claim 1, which is characterized in that described
Temperature sensor（18）And timer（22）It is connected to single chip microcontroller（21）Input port, solenoid valve（23）It is connected to monolithic
Microcontroller（21）Delivery outlet, display（17）And digital dial gauge（1）It is connected to single chip microcontroller（21）Communication port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223842.7U CN207816876U (en) | 2018-02-08 | 2018-02-08 | Concrete shrinkage test device under a kind of water bath with thermostatic control environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223842.7U CN207816876U (en) | 2018-02-08 | 2018-02-08 | Concrete shrinkage test device under a kind of water bath with thermostatic control environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816876U true CN207816876U (en) | 2018-09-04 |
Family
ID=63320836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820223842.7U Expired - Fee Related CN207816876U (en) | 2018-02-08 | 2018-02-08 | Concrete shrinkage test device under a kind of water bath with thermostatic control environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207816876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865538A (en) * | 2019-03-13 | 2019-06-11 | 四川农业大学 | A kind of soil freezed expansion Rule experimental box convenient for measuring volume |
-
2018
- 2018-02-08 CN CN201820223842.7U patent/CN207816876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865538A (en) * | 2019-03-13 | 2019-06-11 | 四川农业大学 | A kind of soil freezed expansion Rule experimental box convenient for measuring volume |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20200208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |