CN101839830B - Mortar strength digital display testing instrument - Google Patents
Mortar strength digital display testing instrument Download PDFInfo
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- CN101839830B CN101839830B CN2010101663916A CN201010166391A CN101839830B CN 101839830 B CN101839830 B CN 101839830B CN 2010101663916 A CN2010101663916 A CN 2010101663916A CN 201010166391 A CN201010166391 A CN 201010166391A CN 101839830 B CN101839830 B CN 101839830B
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- digital display
- testing instrument
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 44
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 22
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims 2
- 239000002002 slurry Substances 0.000 claims 2
- 230000035515 penetration Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 24
- 238000003556 assay Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a mortar strength digital display testing instrument, which is characterized in that the testing instrument is provided with a box body (1), and the box body is internally provided with a signal processing display device (2) which consists of a singlechip processing unit, a liquid crystal display unit, a mobile memory card and the like; the box body is connected with a handle (4) through a spindle (5), and a cavity (44) at the lower part of the handle is sequentially and internally provided with a sensor (6), a pressure spring (7), a sliding sleeve (9), an end cover (8) and a scratch awl (10) which form an execution unit for testing strength; and a force sensor is connected with the signal processing display device to form the digital display testing instrument. The digital display testing instrument has the effects of simple operation and accurate and reliable data. In the invention, as scratches pass through a mortar segment but not a penetration point, mortar is not damaged or disturbed owing to chiseling samples, thus more closely reflecting the quality level of the mortar; and the equivalent value of mortar strength can be directly obtained by a site test, and test data can be directly displayed.
Description
Technical field
The present invention relates to measure compression strength of building mortar method and digital display instrument.
Background technology
Masonry mortar is the important building materials in the masonry structure; Usually utilize the standard cube body test block evaluation compressive strength of reserving; When situations such as mortar specimen shortage representativeness, test block lazy weight, test findings with suspicion or disputable to the test findings of mortar specimen, mortar specimen can not meet design requirement, all need adopt the field test method that mortar and masonry strength are carried out in situ detection or sampling detection.Traditional test sclerosis mortar compressive strength method has: some lotus method, tube platen press, mortar sheet shearing method, impact screen point-score, release method, penetration method, rebound method and method of powder actuated shot.All there are relative merits separately in each method, wherein, preceding 4 kinds of methods need on-the-spot on masonry cutter get the mortar piece, at the indoor correlation test of doing, the test figure substitution surveyed in the strong curve obtains a result.Because receive the influence that the sum of errors of sampling, shop experiment is surveyed the factors such as error of strong curve itself, test result is often very big with the actual strength difference.The execute-in-place of release method is comparatively complicated, and result's accuracy also remains practical proof.Above-mentioned 5 kinds of methods all need the local failure masonry structure, and the sampling difficulty is bigger on cross wall.Penetration method is surveyed standard because depth of penetration is difficult, and has more technological difficulties wayward in the operation, and the general true intensity of test result is on the low side.Method of powder actuated shot is similar with penetration method on test philosophy; Difference is that penetration method utilizes spring to follow closely to beat and sews at mortar, and method of powder actuated shot will be followed closely dozen on mortar seam face through ail gun, and the amount of injecting of nail is relevant with the energy of nail shooting pill; Wayward, so this method practice is less.Extensively retrieve to the problems referred to above, do not find to have better assay method and instrument as yet.
Summary of the invention
The resultant error that the objective of the invention is to exist respectively to traditional assay method is big, the defective of local failure masonry structure and operating difficulties, and a kind of mortar strength digital display testing instrument is provided.
To achieve these goals, the present invention adopts following technical scheme:
A kind of mortar strength digital display testing instrument is characterized in that comprising:
A, a casing is set, its set inside signal Processing display device, this device is made up of AD conversion, single-chip microcomputer processing unit, operation keyboard, liquid crystal display, power supply unit, mobile memory card;
B, the leader is set, establishes rotating shaft on it, this handle one end is arranged in the casing; And cooperate with casing through rotating shaft, handle can rotate around this rotating shaft, and the other end is outside casing; The end of handle in casing is provided with blind hole, and force-sensing sensor, pressure spring are set in the blind hole, and force-sensing sensor one end withstands on that the other end withstands on the pressure spring on the blind hole; One sliding sleeve is set, and its band groove lower end, upper end band is protruding, and the pressure spring lower end withstands in the sliding sleeve groove; The sliding sleeve upper end is slidingly matched with handle lower end slideway, and the end cap of a band center pit is set, and it is connected with the handle lower end; Sliding sleeve lower end convexity passes end cap central bore and end cap central bore is slidingly matched, and on the convexity of sliding sleeve lower end a scriber is set;
C, force-sensing sensor are connected with the signal Processing display device through lead.
On the basis of technique scheme, further technical scheme can be arranged:
One tension spring is set in casing, and its two ends are connect box and handle lower end end cap respectively;
A pair of location-plate is set in casing cooperates the location with the scriber starting and ending;
It is epimere, stage casing, hypomere that handle can be divided into three sections, on the stage casing, establishes rotating shaft, and handle stage casing and hypomere are through being threaded, with nut and tight, with the length of adjustment bottom scriber; Handle stage casing and epimere are through being threaded, with nut and tight, with the length of adjustment upper handle.
Principle of work of the present invention: utilize scriber, vestige institute's work of standardized regular length and the correlationship between the mortar strength are tested mortar strength on the mortar surface, i.e. f
c Ru, i=AW
BWherein, A, B is regression coefficient, and W is institute's work.In motion process, the transient force F that force-sensing sensor records
iReach the single-chip microcomputer processing unit of signal Processing display device through lead.Because this power then is the deformation epsilon of spring divided by the pressure spring stiffness K
i, i.e. ε
i=F
i/ K, it is deformation epsilon that this power multiply by displacement again
iEqual this power institute work, i.e. W
i=F
i 2/ K, obviously, the mortar strength of surveying when high more, W
iCan be big more, vice versa.Because K is certain, so, just can calculate each institute's work, these merits are added up through the single card microcomputer processing unit as long as record the power value of each moment by sensor moment, promptly calculate tested mortar strength by the strong opisometer of unified survey.
Data transmission and calculating: adopt force-sensing sensor gaging pressure spring adaptability to changes value, firmly the method for value transform is measured the pressure spring collapsing length.Firmly two parameters of value and strain distance are tried to achieve power institute work.Adopt the single-chip microcomputer processing unit as the observing and controlling core, use with lattice lcd display unit backlight as power value and curve display unit.To the mortar strength of varying strength scope, the strong curve of the survey that it is conventional is demarcated in the signal Processing display device with 5 methods.Measurement finishes, and the signal Processing display device will be surveyed power value and displacement subsection storage, and the operator can inquire about through menu.The signal Processing display device is joined mobile memory card, and the operator can be convenient to raw data long preservation and data analysis with storage data importing computing machine.
System chart: form by AD conversion, single-chip microcomputer processing unit, operation keyboard, liquid crystal display, power supply unit, mobile memory card.
Major function: have scriber and touch mortar and leave mortar prompt alarm function.Has self-test function, if any sensor broken string, battery is under-voltage can both alarm.Have information such as metrical information input function such as code signal, Measuring Time, test person.System's power down or damage, former data can not lost, still on storage card.Memory capacity can be preserved the information in 1 year at least.The information deletion operation has the authority setting.System's power supply is adopted rechargeable battery and is furnished with the dry cell box simultaneously, prepares against urgent need.
Performance index:
1, power supply 5v 2000mAh
2, frequency acquisition 5KHZ
3, power value precision 0.01N
4, memory capacity is greater than 32M
5, volume 183mm * 113mm * 70mm
6, weight 0.5kg
Adopt above technical scheme, its beneficial effect is following:
1, simple to operate, data accurately and reliably;
2, since cut through one section mortar body, rather than injection point also can cause damage or disturbance for mortar itself because of the cutter sample thief, therefore more can reflect the quality level of mortar;
3, on-the-spot test directly draws the mortar strength scaled value, and can directly show test data.
Description of drawings
Fig. 1 is a mortar strength digital display testing instrument structural representation provided by the invention;
Fig. 2 is the cut-open view of Fig. 1;
Fig. 3 is Fig. 1 signal Processing display system block diagram.
Embodiment
Like Fig. 1, shown in Figure 2; Mortar strength digital display testing instrument provided by the invention; The casing 1 that comprises setting; Its set inside signal Processing display device 2, referring to Fig. 3, this device is made up of AD conversion, single-chip microcomputer processing unit, operation keyboard, liquid crystal display, power supply unit, mobile memory card.The electric signal of force-sensing sensor through the AD converting unit, converts the discernible electric signal of single-chip microcomputer to, after single-chip microcomputer is handled, test result is presented at liquid crystal display.The composition of described signal Processing display device belongs to routine techniques.
Like Fig. 1, shown in Figure 2, leader 4 is set, establish rotating shaft 5 on it, handle 4 can also be arranged to 43 3 sections of epimeres 41, stage casing 42, hypomere, and wherein epimere 41 is threaded respectively with hypomere 43 with stage casing 42, stage casing 42 and with nut 43a, nut 43b and tight.The screw thread that rotation stage casing 42 cooperates with hypomere 43, the length that can regulate scriber 10, the screw thread that rotation stage casing 42 cooperates with epimere 41, the length that can regulate handle 4, nut 43a, nut 43b get and tightly effect.
Two section 42,43 in this handle 4 is arranged in the casing 1, and cooperates with casing 1 through rotating shaft 5, and handle 4 can rotate around this rotating shaft 5; Another section 41 is outside casing 1; Handle 4 a section 43 in casing 1 is provided with blind hole 44, and force-sensing sensor 6, pressure spring 7 are set in the blind hole 44, and force-sensing sensor 6 one ends withstand on that the other end withstands on the pressure spring 7 on the blind hole 44; One sliding sleeve 9 is set; Its band groove lower end, upper end band is protruding, and pressure spring 7 lower ends withstand in sliding sleeve 9 grooves, and the slideway 45 that is provided with in sliding sleeve 9 upper end excircle part and handle 4 hypomeres 43 is slidingly matched.The end cap 8 of one band center pit is set, and it is threaded with handle 4 lower ends 43, and the convexity of sliding sleeve 9 lower ends passes end cap 8 center pits and end cap 8 center pits are slidingly matched, and on the sliding sleeve 9 lower end convexities scriber 10 is set.
Force-sensing sensor 6 is connected with signal Processing display device 2 through lead;
One tension spring 3 is set in casing 1, and its two ends are connect box 1 and handle lower end end cap 8 respectively;
A pair of symmetrically arranged location-plate 11 is set in casing 1 cooperates the location, shown in the dotted line scriber of position, the left and right sides among Fig. 1 with scriber 10 starting and endings.
Above-mentioned mortar strength assay method; Mortar strength digital display testing instrument by being pressed in masonry 12 surfaces, is in the position before the work with scriber 10 lower ends, and tension spring 3 pulls to the left side with handle 4 lower ends; Make scriber 10 just contact tested mortar face; Hold handle 4 and firmly slowly promote left, scriber 10 marks the arc vestige one along tested mortar surface under the effect of pressure spring 7.Remove digital display instrument, scriber 10 is got back to initial position under the pulling of tension spring 3.The compression of the displacement of scriber 10, pressure spring 7 is transformed into force-sensing sensor 6 electric signal entering signal processes and displays devices 2 and directly reads mortar strength numerical value.
Claims (5)
1. mortar strength digital display testing instrument is characterized in that comprising:
A, a casing (1) is set, its set inside signal Processing display device (2), this device is made up of AD conversion, single-chip microcomputer processing unit, operation keyboard, liquid crystal display, power supply unit, mobile memory card;
B, leader (4) is set, the center is established rotating shaft (5) and is connected cooperation with casing (1), and these handle (4) one ends are arranged in the casing (1); The other end is outside casing (1), and the end of handle (4) in casing (1) is provided with blind hole (44), and force-sensing sensor (6), pressure spring (7) are set in the blind hole (44); Force-sensing sensor (6) one ends withstand on the blind hole (44), the other end withstands on the pressure spring (7); One sliding sleeve (9) is set, and its upper end is provided with groove, the lower end is provided with convexity, and pressure spring (7) lower end withstands in sliding sleeve (9) groove; The slideway (45) that sliding sleeve (9) top and handle (4) lower end are provided with is slidingly matched; The end cap (8) that one band center pit is set is connected with handle (4) lower end, and sliding sleeve (9) lower end convexity is passed end cap (8) center pit, in the convexity of sliding sleeve (9) lower end a scriber (10) is set;
C, force-sensing sensor (6) are connected with signal Processing display device (2) through lead.
2. mortar strength digital display testing instrument as claimed in claim 1 is characterized in that: a tension spring (3) is set, the end cap (8) of its two ends difference connect box (1) and handle (4) lower end in casing (1).
3. according to claim 1 or claim 2 mortar strength digital display testing instrument is characterized in that: a pair of location-plate (11) is set in casing (1) cooperates with scriber (10), the mortar cut reference position and the mortar cut end position of scriber (10) positioned.
4. according to claim 1 or claim 2 sand digital display slurry intensity measuring device; It is characterized in that: handle (4) is divided into three sections; Handle epimere (41), handle stage casing (42), handle hypomere (43), rotating shaft (5) are arranged on the handle stage casing (42), between every section through being threaded; With nut and tight, with the length of adjustment handle and bottom scriber (10).
5. sand digital display slurry intensity measuring device as claimed in claim 3; It is characterized in that: handle (4) is divided into three sections; Handle epimere (41), handle stage casing (42), handle hypomere (43), rotating shaft (5) are arranged on the handle stage casing (42), between every section through being threaded; With nut and tight, with the length of adjustment handle and bottom scriber (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101663916A CN101839830B (en) | 2010-04-30 | 2010-04-30 | Mortar strength digital display testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101663916A CN101839830B (en) | 2010-04-30 | 2010-04-30 | Mortar strength digital display testing instrument |
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| CN101839830A CN101839830A (en) | 2010-09-22 |
| CN101839830B true CN101839830B (en) | 2012-05-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305740A (en) * | 2011-08-03 | 2012-01-04 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Detection method of compression strength of concrete structure |
| CN103134732A (en) * | 2013-02-08 | 2013-06-05 | 孟钧 | Tester of mortar strength |
| CN106950103A (en) * | 2017-02-28 | 2017-07-14 | 徐州工程学院 | A kind of air entrained concrete idiosome strength meter |
| CN111623745B (en) * | 2020-06-04 | 2021-12-31 | 安徽瑞澳混凝土有限公司 | Mortar construction performance testing device and testing method |
| CN111965060B (en) * | 2020-08-03 | 2023-06-09 | 河海大学 | Press-in type on-site rebound modulus measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3951257B2 (en) * | 1996-11-08 | 2007-08-01 | 株式会社井元製作所 | Muscle hardness meter |
| JP3936791B2 (en) * | 1998-01-30 | 2007-06-27 | 有限会社エラストロン | Inclined dial type rubber hardness tester |
| CN101419142A (en) * | 2008-11-10 | 2009-04-29 | 卢能晓 | Plastic tube intensity detector |
| CN201298002Y (en) * | 2008-12-01 | 2009-08-26 | 卢能晓 | Strength testing instrument of quasi-nondestructive plastic pipe |
| CN201673099U (en) * | 2010-04-30 | 2010-12-15 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Mortar intensity digital display measurement instrument |
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Address after: 230088 No. 63 science Avenue, hi tech Zone, Anhui, Hefei Applicant after: ANHUI BUILDING ENGINEERING QUALITY SUPERVISION AND TESTING STATION Co-applicant after: WATER RESOURCES Research Institute OF ANHUI AND HUAIHE RIVER COMMISSION Address before: The Huaihe River Road in Anhui province Bengbu City 233000 Longzihu District No. 771 Applicant before: WATER RESOURCES Research Institute OF ANHUI AND HUAIHE RIVER COMMISSION |
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Address after: No. 55 Hongfeng Road, High tech Development Zone, Hefei City, Anhui Province, 231000 Patentee after: Anhui Construction Engineering Quality Supervision and Inspection Station Co.,Ltd. Country or region after: China Patentee after: ANHUI & HUAIHE RIVER INSTITUE OF HYDRAULIC RESEARCH (ANHUI WATER CONSERVANCY PROJECT QUALITY INSPECTION CENTER STATION) Address before: No. 63 Science Avenue, High tech Zone, Hefei City, Anhui Province, 230088 Patentee before: ANHUI BUILDING ENGINEERING QUALITY SUPERVISION AND TESTING STATION Country or region before: China Patentee before: WATER RESOURCES Research Institute OF ANHUI AND HUAIHE RIVER COMMISSION |
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Effective date of registration: 20240124 Address after: No. 55, Hongfeng Road, Hefei Hi-tech Zone, Hefei, Anhui Province Patentee after: ANHUI & HUAIHE RIVER INSTITUE OF HYDRAULIC RESEARCH (ANHUI WATER CONSERVANCY PROJECT QUALITY INSPECTION CENTER STATION) Country or region after: China Address before: No. 55 Hongfeng Road, High tech Development Zone, Hefei City, Anhui Province, 231000 Patentee before: Anhui Construction Engineering Quality Supervision and Inspection Station Co.,Ltd. Country or region before: China Patentee before: ANHUI & HUAIHE RIVER INSTITUE OF HYDRAULIC RESEARCH (ANHUI WATER CONSERVANCY PROJECT QUALITY INSPECTION CENTER STATION) |