CN207096056U - A kind of concrete impervious instrument - Google Patents
A kind of concrete impervious instrument Download PDFInfo
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- CN207096056U CN207096056U CN201721147514.5U CN201721147514U CN207096056U CN 207096056 U CN207096056 U CN 207096056U CN 201721147514 U CN201721147514 U CN 201721147514U CN 207096056 U CN207096056 U CN 207096056U
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- hydraulic
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- concrete
- hydraulic tube
- pressing plate
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Abstract
The utility model discloses a kind of concrete impervious instrument, and the sealing solved in the prior art between the test bench and concrete sample of concrete impervious instrument is bad, reduces the technical problem of the accuracy of concrete impervious instrument detection data；Its drip irrigation device is：Multiple test benches including support and on support, also include the pressing plate above test bench and be arranged on the lifting structure for being used to drive pressing plate to move up and down on support, the concrete sample being placed with the test bench between test bench and pressing plate, the upper surface of the test bench is provided with ring-type projection, the surface of the ring-type projection is provided with sealing gasket, and the lower surface of the concrete sample is provided with the annular recess being engaged with ring-type projection；Highly pressurised liquid of the utility model in detection in concrete sample is not susceptible to seepage, has reached the beneficial effect of the accuracy of the concrete impervious instrument detection data of raising.
Description
Technical field
Concrete NDT equipment technical field is the utility model is related to, more specifically, it relates to a kind of concrete impervious
Instrument.
Background technology
The anti-permeability performance of concrete is the important indicator for evaluating concrete quality quality and durability, and it refers to concrete
Structures can resist the performance that water or other liquid (such as light oil, heavy oil) medium permeate under pressure, be each engineering quality supervision
The required Inspection Index of stand control concrete quality.
Chinese utility model patent, Authorization Notice No. CN206311473U, disclose a kind of concrete impervious instrument, its skill
The main points of art scheme are：Multiple test seats including support, on support, the fixed mechanism for compressing and sealing workpiece,
With the water system that connect of test seat, bottom plate that the test seat includes being arranged on support, be embedded on bottom plate for
The first sealing ring that workpiece abuts, fixed mechanism include an installing plate, set on a mounting board with testting seat correspondingly simultaneously
The Anchor plate kit of plate up and down motion can be mounted opposite, be fixed on the actuator that drive installation plate moves up and down on support.
Because concrete impervious instrument needs to be passed through highly pressurised liquid into test specimen when testing the anti-permeability performance of concrete sample,
Therefore easily there is fluid seepage at the abutting of test specimen and base, influence Detection results.Above-mentioned prior art is embedded on base
The sealing ring abutted with workpiece, but this sealing means are excessively simple, sealing effectiveness and unobvious, directly reduce coagulation
The accuracy of native Anti-leakage instrument detection data.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of concrete impervious instrument, pass through
Ring-type projection is set on test bench, sealing gasket is set on the surface of ring-type projection and set in the lower surface of concrete sample
The annular recess being engaged with ring-type projection, increase the sealing area between test bench and concrete sample, coagulation when making detection
Highly pressurised liquid in native test specimen is not susceptible to seepage, improves the accuracy of concrete impervious instrument detection data.
To achieve the above object, the utility model provides following technical scheme：A kind of concrete impervious instrument, including support
And multiple test benches on support, in addition to be located at the pressing plate above test bench and be arranged on support and be used to drive
The lifting structure that pressing plate moves up and down, the concrete sample being placed with the test bench between test bench and pressing plate, institute
The upper surface for stating test bench is provided with ring-type projection, and the surface of the ring-type projection is provided with sealing gasket, under the concrete sample
Surface is provided with the annular recess being engaged with ring-type projection.
Using above-mentioned technical proposal, when concrete sample is positioned on test bench, ring-type projection and ring-type projection table
In the sealing gasket insertion annular recess in face, after concrete sample is secured in a press, the sealing gasket to arch upward upwards not only increases survey
The sealing area between seat and concrete sample is tried, so that sealing gasket is inclined upwardly by horizontal plane, can be further
Stop that seepage outwards occurs for the highly pressurised liquid in concrete sample, so as to significantly increase between test bench and concrete sample
Sealing property, improve the accuracy of concrete impervious instrument detection data.
The utility model is further set, the equal semicircular in shape of vertical sectional shape of the ring-type projection and annular recess.
Using above-mentioned technical proposal, the ring-type projection and annular recess of longitudinal section semicircular in shape can make sealing gasket to arch
Rise, increase the sealing area between test bench and concrete sample, so that sealing gasket is inclined upwardly by horizontal plane, can
Further stop that seepage outwards occurs for the highly pressurised liquid in concrete sample, tried so as to significantly increase test bench with concrete
Sealing property between part.
The utility model is further set, and the vertical sectional shape of the ring-type projection and annular recess is triangular in shape.
Using above-mentioned technical proposal, longitudinal section ring-type projection triangular in shape and annular recess can make sealing gasket to arch
Rise, increase the sealing area between test bench and concrete sample, so that sealing gasket is inclined upwardly by horizontal plane, can
Further stop that seepage outwards occurs for the highly pressurised liquid in concrete sample, tried so as to significantly increase test bench with concrete
Sealing property between part.
The utility model is further set, and the vertical sectional shape of the ring-type projection and annular recess is trapezoidal.
Using above-mentioned technical proposal, the trapezoidal ring-type projection in longitudinal section and annular recess can make sealing gasket arch upward upwards,
Increase the sealing area between test bench and concrete sample, so that sealing gasket is inclined upwardly by horizontal plane, Neng Goujin
Stop that seepage outwards occurs for the highly pressurised liquid in concrete sample to one step, so as to significantly increase test bench and concrete sample
Between sealing property.
The utility model is further set, and the lifting structure includes the first hydraulic tube, the hydraulic valve being fixedly connected sequentially
And second hydraulic tube, is provided with the first push rod in first hydraulic tube, one end of first push rod is connected with slip setting
First piston in the first hydraulic tube, the other end stretch out in the first hydraulic tube, the second push rod are provided with second hydraulic tube,
One end of second push rod is connected with the second piston being slidably arranged in the second hydraulic tube, and the other end stretches out in the second hydraulic pressure
Manage and be fixedly connected with the pressing plate.
Using above-mentioned technical proposal, the concrete sample on test bench, operation letter are compressed using hydraulic drive driving pressing plate
Just, pressing plate is good to the compression effect of concrete sample for folk prescription, further increases the sealing between test bench and concrete sample
Performance.
The utility model is further set, and the hydraulic valve is provided with the cavity of both ends open, and the cavity is shaped as cylinder
The bodily form and the diameter at middle part are more than the diameter at both ends, and the cavity forms First terrace and second step face with hydraulic valve,
The First terrace is closer to the first hydraulic tube, and the second step face is closer to the second hydraulic tube, the second step face
Hydraulic spring grease cup is provided with, the other end of the hydraulic spring grease cup is fixedly connected with hydraulic valve core, and the hydraulic valve core is away from hydraulic pressure bullet
The end of spring abuts cooperation with First terrace.
Using above-mentioned technical proposal, hydraulic valve is not only simple in structure, and can only realize one-way conduction, i.e. the first hydraulic tube
Interior hydraulic oil can be flowed in the second hydraulic tube by hydraulic valve, and the hydraulic oil in the second hydraulic tube can not pass through hydraulic valve
Flow to the first hydraulic tube.Therefore, after lifting structure driving pressing plate compresses concrete sample, concrete sample is fixed, and is not easy
Loosening is produced, and then the sealing between test bench and concrete sample is continued the longer time.
The utility model is further set, and oil return is offered on the tube wall of first hydraulic tube and the second hydraulic tube
Mouthful, oil return pipe is connected between two oil return openings, the oil return pipe is threaded with for blocking and turning on oil return pipe
Release bolt.
Using above-mentioned technical proposal, twist-on enters release bolt and blocked in oil return pipe before pressing plate compresses concrete sample
Oil circuit, concrete sample is set to be pressed on by pressing plate on test bench.Unscrewing release bolt turns on the oil circuit in oil return pipe, and then makes
Oil circuit between first hydraulic tube and the second hydraulic tube is connected, and the hydraulic oil in the second hydraulic tube just can be made to pass through oil return pipe stream
Enter in the first hydraulic tube, realize the release of oil circuit, so that second piston and pressing plate energy free movement, by concrete sample from survey
Removed on examination seat, release is simple in construction and stress-relief process is easy to operate.
The utility model is further set, and first push rod forms screw-driven with the first hydraulic tube and is connected.
Using above-mentioned technical proposal, connected by the screw-driven between the first push rod and the first hydraulic tube, make the first work
Plug close to hydraulic valve direction to moving or being moved away from hydraulic valve direction in the first hydraulic tube, and the first push rod is around its every turn of axis
Dynamic one week, first piston only slided the distance of a pitch in the first hydraulic tube, compared to pushing or pull on the first push rod, on
It is more convenient and laborsaving to state mode of operation.
The utility model is further set, and reinforcement is provided between the pressing plate and the second push rod.
Using above-mentioned technical proposal, by setting reinforcement to increase the rigidity of pressing plate between pressing plate and the second push rod, make
Pressing plate is more evenly distributed on pressing plate by the thrust of the second push rod, and then avoids pressing plate because by excessive concentrated stress
And larger deformation is produced, so as to cause the unbalance stress between multiple concrete samples, concrete impervious instrument is influenceed to coagulation
The detection of native test specimen.
The utility model is further set, and the pressing plate is provided with rubber blanket towards the surface of test bench.
Using above-mentioned technical proposal, pressing plate can compress concrete towards the rubber blanket that the surface of test bench is set in pressing plate
Elastic deformation is produced during test specimen, on the one hand pressing plate and concrete sample are played a protective role, on the other hand makes pressing plate to coagulation
The compression effect of native test specimen is more preferable.
In summary, the utility model has the advantages that：First, the sealing between test bench and concrete sample
Performance is obviously improved, and then improves the accuracy of concrete impervious instrument detection data；Second, to concrete sample
Be fixed it is simple in construction, it is easy to operate, and compress effect it is also very notable.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one；
Fig. 2 is the structural representation of lifting structure and pressing plate in the utility model embodiment one；
Fig. 3 is the structure sectional view of test bench and concrete sample in the utility model embodiment one；
Fig. 4 is the structure sectional view of test bench and concrete sample in the utility model embodiment two；
Fig. 5 is the structure sectional view of test bench and concrete sample in the utility model embodiment three.
Reference：1st, support；2nd, test bench；21st, inlet opening；22nd, ring-type projection；23rd, sealing gasket；31st, pressing plate；32、
Reinforcement；33rd, rubber blanket；4th, lifting structure；41st, the first hydraulic tube；42nd, hydraulic valve；421st, cavity；422nd, First terrace；
423rd, second step face；424th, hydraulic spring grease cup；425th, hydraulic valve core；43rd, the second hydraulic tube；44th, the first push rod；441st, first live
Plug；442nd, groove；45th, bull stick；451st, projection；46th, the second push rod；461st, second piston；47th, oil return opening；48th, oil return pipe；
481st, release bolt；482nd, block；5th, concrete sample；51st, annular recess.
Embodiment
The technical solution of the utility model is elaborated below in conjunction with the accompanying drawings.
Embodiment one：A kind of concrete impervious instrument, as shown in figure 1, including support 1, be fixedly mounted on support 1 four
Test bench 2, the pressing plate 31 above test bench 2 and be fixedly mounted on support 1 be used for drive pressing plate 31 move up and down
Lifting structure 4, the concrete sample 5 being placed with test bench 2 between test bench 2 and pressing plate 31.
As depicted in figs. 1 and 2, lifting structure 4 includes the first hydraulic tube 41, the hydraulic valve 42 and the being fixedly connected sequentially
Two hydraulic tubes 43, the first hydraulic tube 41, the hydraulic tube 43 of hydraulic valve 42 and second are arranged along same straight line from top to bottom.First hydraulic pressure
Pipe 41 is fixedly mounted on support 1, in the first hydraulic tube 41 activity be plugged with the first push rod 44, one end of the first push rod 44 is stretched
For the first hydraulic tube 41, the other end is fixedly connected with the first piston 441 being slidably arranged in the first hydraulic tube 41；First pushes away
The side of bar 44 is provided with external screw thread, and the medial surface for the end that the first hydraulic tube 41 and the grafting of the first push rod 44 coordinate is provided with interior spiral shell
Line, the first push rod 44 are threadedly connected in the first hydraulic tube 41 and form screw-driven with the first hydraulic tube 41；First push rod 44
The end for stretching out in the first hydraulic tube 41 is detachably provided with bull stick 45, and the first push rod 44 stretches out in the end face of the first hydraulic tube 41
Groove 442 is provided with, the middle part of bull stick 45 is welded with the projection 451 being engaged by clamping with groove 442.
Hydraulic valve 42 is provided with the cavity 421 of both ends open, and the diameter for being shaped as cylinder-shaped and middle part of cavity 421 is more than two
The diameter of end, cavity 421 form First terrace 422 and second step face 423 with hydraulic valve 42, and First terrace 422 is more
Close to the first hydraulic tube 41, second step face 423 is closer to the second hydraulic tube 43；Liquid is installed by welding with second step face 423
Pressing spring 424, the other end of hydraulic spring grease cup 424 are installed by welding with hydraulic valve core 425, and hydraulic valve core 425 is away from hydraulic spring grease cup 424
End abut cooperation with First terrace 422.
Second hydraulic tube 43 is fixedly mounted on support 1, in the second hydraulic tube 43 activity be plugged with the second push rod 46；The
One end of two push rods 46 is fixedly connected with the second piston 461 being slidably arranged in the second hydraulic tube 43, and the second push rod 46 stretches out
The pressing plate 31 for workpiece pressing is welded with the end of the second hydraulic tube 43；It is welded with and adds between the push rod 46 of pressing plate 31 and second
Strengthening tendons 32, the surface of pressing plate 31 towards test bench 2 are provided with rubber blanket 33.
Oil return opening 47 is provided with the tube wall of first hydraulic tube 41 and the second hydraulic tube 43, is connected between two oil return openings 47
There is oil return pipe 48, oil return pipe 48 is threaded with release bolt 481, and the grafting of release bolt 481 enters the end one of oil return pipe 48
Shaping is provided with the block 482 for blocking and turning on oil return pipe 48.
As shown in figures 1 and 3, the inlet opening 21 for being passed through highly pressurised liquid, upper surface one are provided with the center of test bench 2
Body formed to be provided with ring-type projection 22, the surface of ring-type projection 22 is provided with sealing gasket 23；The lower surface of concrete sample 5 be provided with
The vertical sectional shape of the annular recess 51 that ring-type projection 22 is engaged, ring-type projection 22 and annular recess 51 is triangular in shape.By
The upper surface of test bench 2 is raised in ring-type projection 22, the sealing gasket 23 on the surface of ring-type projection 22 is arched upward upwards；Work as concrete
When test specimen 5 is positioned on test bench 2, the sealing gasket 23 on ring-type projection 22 and the surface of ring-type projection 22 is embedded in annular recess 51
It is interior, after concrete sample 5 is secured in a press, the sealing gasket 23 that arches upward upwards not only increase test bench 2 and concrete sample 5 it
Between sealing area so that sealing gasket 23 is inclined upwardly by horizontal plane, can further stop in concrete sample 5
Highly pressurised liquid seepage outwards occurs, so as to significantly increase the sealing property between test bench 2 and concrete sample 5.
The fixation of concrete sample 5 is with removing：First hydraulic tube 41, hydraulic valve 42, the second hydraulic tube 43 and oil return pipe
Hydraulic oil is filled between 48, before concrete impervious instrument work, prefabricated concrete sample 5 is positioned on test bench 2, in oil return
Release bolt 481 is installed on pipe 48 and blocks oil return pipe 48 using block 482, the first hydraulic tube 41 is stretched out in the first push rod 44
End installation bull stick 45.Bull stick 45 is rotated, is connected by the screw-driven between the first push rod 44 and the first hydraulic tube 41, the
One piston 441 moves downward, and the oil pressure in the first hydraulic tube 41 is more than the oil pressure in the second hydraulic tube 43, in hydraulic fluid pressure
In the presence of difference, the compression hydraulic spring 424 of hydraulic valve core 425 simultaneously moves to the direction of the second hydraulic tube 43, in the first hydraulic tube 41
Hydraulic oil flow into the second hydraulic tube 43, under the oil pressure effect of hydraulic oil, second piston 461 in the second hydraulic tube 43 to
Lower motion, and then the second push rod 46 and pressing plate 31 is moved downward and is compressed concrete sample 5.
After pressing plate 31 compresses concrete sample 5, the bull stick 45 on the first push rod 44 can be pulled down；Due to hydraulic valve core
425 abut under the active force of hydraulic spring grease cup 424 with second step face 423, have blocked the first hydraulic tube 41 and the second hydraulic tube
The hydraulic oil of circulation in 43, therefore pressing plate 31 can only move from top to bottom, and counter motion is unable to, and then realize concrete examination
Part 5 is fixed and clamped.
When needing to take out the concrete sample 5 compressed by pressing plate 31, unscrewing release bolt 481 makes oil in oil return pipe 48
Road turns on, and then the hydraulic oil in the first hydraulic tube 41 and the second hydraulic tube 43 is circulated；Rotating backward bull stick 45 makes the first work
Plug 441 moves upwards, and the oil pressure in the first hydraulic tube 41 is less than the oil pressure in the second hydraulic tube 43, in the work of hydraulic fluid pressure difference
Under, the hydraulic oil in the second hydraulic tube 43 is flowed in the first hydraulic tube 41 by oil return pipe 48, so make second piston 461 with
And pressing plate 31 moves upwards, so as to which concrete sample 5 is removed from test bench 2.
Embodiment two：A kind of concrete impervious instrument, as shown in figure 4, the present embodiment and the difference of embodiment one are ring-type
The vertical sectional shape of projection 22 and annular recess 51 is arranged to semicircle.
Embodiment three：A kind of concrete impervious instrument, as shown in figure 5, the present embodiment and the difference of embodiment one are ring-type
The vertical sectional shape of projection 22 and annular recess 51 is arranged to trapezoidal.
Above example is only that it is not to limitation of the present utility model, this area to explanation of the present utility model
Technical staff can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but only
All to be protected in right of the present utility model by Patent Law.
Claims (10)
1. a kind of concrete impervious instrument, including support (1) and multiple test benches (2) on support (1), its feature exist
In：Also include the pressing plate (31) above test bench (2) and be arranged on support (1) to be used to drive pressing plate (31) to transport up and down
Dynamic lifting structure (4), the concrete sample being placed with the test bench (2) between test bench (2) and pressing plate (31)
(5), the upper surface of the test bench (2) is provided with ring-type projection (22), and the surface of the ring-type projection (22) is provided with sealing gasket
(23), the lower surface of the concrete sample (5) is provided with the annular recess (51) being engaged with ring-type projection (22).
A kind of 2. concrete impervious instrument according to claim 1, it is characterised in that：The ring-type projection (22) and ring-type are recessed
The equal semicircular in shape of vertical sectional shape of groove (51).
A kind of 3. concrete impervious instrument according to claim 1, it is characterised in that：The ring-type projection (22) and ring-type are recessed
The vertical sectional shape of groove (51) is triangular in shape.
A kind of 4. concrete impervious instrument according to claim 1, it is characterised in that：The ring-type projection (22) and ring-type are recessed
The vertical sectional shape of groove (51) is trapezoidal.
A kind of 5. concrete impervious instrument as claimed in any of claims 1 to 4, it is characterised in that：The lifting knot
Structure (4) includes the first hydraulic tube (41), hydraulic valve (42) and the second hydraulic tube (43) being fixedly connected sequentially, first liquid
The first push rod (44) is provided with pressure pipe (41), one end of first push rod (44), which is connected with, is slidably arranged in the first hydraulic tube
(41) first piston (441) in, the other end stretch out in the first hydraulic tube (41), second are provided with second hydraulic tube (43)
Push rod (46), one end of second push rod (46) are connected with the second piston being slidably arranged in the second hydraulic tube (43)
(461), the other end stretches out in the second hydraulic tube (43) and is fixedly connected with pressing plate (31).
A kind of 6. concrete impervious instrument according to claim 5, it is characterised in that：The hydraulic valve (42) is opened provided with both ends
The cavity (421) of mouth, the diameter for being shaped as cylinder-shaped and middle part of the cavity (421) is more than the diameter at both ends, the sky
Chamber (421) forms First terrace (422) and second step face (423) with hydraulic valve (42), and the First terrace (422) is more
Close to the first hydraulic tube (41), the second step face (423) is closer to the second hydraulic tube (43), the second step face
(423) hydraulic spring grease cup (424) is provided with, the other end of the hydraulic spring grease cup (424) is fixedly connected with hydraulic valve core (425), institute
State end of the hydraulic valve core (425) away from hydraulic spring grease cup (424) and abut cooperation with First terrace (422).
A kind of 7. concrete impervious instrument according to claim 6, it is characterised in that：First hydraulic tube (41) and second
Oil return opening (47) is offered on the tube wall of hydraulic tube (43), oil return pipe (48) is connected between two oil return openings (47),
The oil return pipe (48) is threaded with the release bolt (481) for blocking and turning on oil return pipe (48).
A kind of 8. concrete impervious instrument according to claim 5, it is characterised in that：First push rod (44) and the first liquid
Pressure pipe (41) forms screw-driven connection.
A kind of 9. concrete impervious instrument according to claim 5, it is characterised in that：The pressing plate (31) and the second push rod
(46) reinforcement (32) is provided between.
A kind of 10. concrete impervious instrument according to claim 1, it is characterised in that：The pressing plate (31) is towards test bench
(2) surface is provided with rubber blanket (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721147514.5U CN207096056U (en) | 2017-09-06 | 2017-09-06 | A kind of concrete impervious instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721147514.5U CN207096056U (en) | 2017-09-06 | 2017-09-06 | A kind of concrete impervious instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096056U true CN207096056U (en) | 2018-03-13 |
Family
ID=61539183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721147514.5U Expired - Fee Related CN207096056U (en) | 2017-09-06 | 2017-09-06 | A kind of concrete impervious instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175210A (en) * | 2019-12-31 | 2020-05-19 | 武汉港湾工程质量检测有限公司 | Method for rapidly sealing mortar anti-permeability test piece |
| CN111504879A (en) * | 2020-05-08 | 2020-08-07 | 珠江水利委员会珠江水利科学研究院 | Concrete impermeability test method for hydraulic engineering quality detection |
-
2017
- 2017-09-06 CN CN201721147514.5U patent/CN207096056U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175210A (en) * | 2019-12-31 | 2020-05-19 | 武汉港湾工程质量检测有限公司 | Method for rapidly sealing mortar anti-permeability test piece |
| CN111504879A (en) * | 2020-05-08 | 2020-08-07 | 珠江水利委员会珠江水利科学研究院 | Concrete impermeability test method for hydraulic engineering quality detection |
| CN111504879B (en) * | 2020-05-08 | 2022-11-11 | 珠江水利委员会珠江水利科学研究院 | Concrete impermeability test method for hydraulic engineering quality detection |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180313 Termination date: 20190906 |