CN2781355Y - High strength concrete resiliometer - Google Patents
High strength concrete resiliometer Download PDFInfo
- Publication number
- CN2781355Y CN2781355Y CN 200520200225 CN200520200225U CN2781355Y CN 2781355 Y CN2781355 Y CN 2781355Y CN 200520200225 CN200520200225 CN 200520200225 CN 200520200225 U CN200520200225 U CN 200520200225U CN 2781355 Y CN2781355 Y CN 2781355Y
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- elastic
- hammer
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- shell
- centre pilot
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Abstract
The utility model relates to a high strength concrete resiliometer which is composed of a shell body, a telescopic elastic rod at the front end opening of the front end body of the shell body, a centre pilot glidingly connected with the elastic rod, an impact hammer sliding on the centre pilot, an elastic tension spring connected with the front end of the impact hammer, a guiding flange and a hook which are connected with the back end of the impact hammer by the centre pilot, a button for temporarily fixing the guiding flange, and an indicating needle sliding block which is positioned at one side of the impact hammer and can slide on an indicating needle shaft, wherein the shell body is formed by connecting a front shell body and a back shell body. The stroke of the elastic hammer is 100mm, and the stiffness of the elastic tension spring is 900n/m; the quality of the hammer is 520s; the length of an indicating needle is 25mm; the radius of the spherical surface of the top end of the elastic rod is 45mm, an anti-falling expansion ring is arranged on the head of the elastic rod. A strip-shaped guiding key is fixed to the inner surface of the back shell body along the axial direction; the included angle between the guiding key and the back shell body is 1'20'. The utility model improves the strength checking accuracy and the read-value precision of high strength concrete and is convenient to repair and disassemble.
Description
(1) technical field
The utility model relates to a kind of detecting instrument, particularly measures the instrument of high-strength concrete intensity.
(2) background technology
The normal concrete reisilometer is according to China's " rebound method detects concrete crushing strength technical regulation " regulation (GJG/T23-2001), power stroke has only 75mm, elastic hammer weight 0.37kg, the spherical radius 25mm on elastic stem top, reisilometer standard state energy is 2.207J, only can detect the concrete of the following intensity of 60.0MPa, and very big at the concrete time error that detects between 45.0MPa～60.0MPa intensity.The a large amount of popularization and applications of China's high-strength concrete (strength grade is more than or equal to the concrete of C60) at present, normal concrete reisilometer standard energy is little, and is very big for the high-strength concrete test error, has not been suitable for the intensity detection of high-strength concrete.It comprises housing, the telescopic elastic stem in instrument shell front end body front port place, the elastic tension spring that is connected with centre pilot, the ram hammer that slides, ram hammer front end that elastic stem is slidingly connected available coagulation soil reisilometer on centre pilot, guide flange and the button of hook, temporary fixed guide flange of ram hammer rear end by the centre pilot connection, be positioned at the indicator slide block that ram hammer one side also can be slided on needle pivot.For the detection of high-strength concrete, have and on the basis of existing concrete reisilometer, to improve structure and optimisation technique parameter, and further improve the accuracy rate that detects.
(3) utility model content
The purpose of this utility model provides a kind of high-strength concrete reisilometer, solves to improve the technical barrier that detects high-strength concrete intensity accuracy and the value of reading accuracy; And solution convenient for maintaining and problem for convenience detach.
The technical solution of the utility model: this high-strength concrete reisilometer, it comprises housing, the telescopic elastic stem in instrument shell front end body front port place, the elastic tension spring that is connected with centre pilot, the ram hammer that slides, ram hammer front end that elastic stem is slidingly connected on centre pilot, guide flange that the ram hammer rear end connects by centre pilot and hook, the button of temporary fixed guide flange, the indicator slide block that is positioned at ram hammer one side and can slides on needle pivot is characterized in that: above-mentioned housing by shell precursor and shell after body be formed by connecting; The elastic hammer stroke is 100mm; Elastic tension spring rigidity is 900N/m; The elastic hammer quality is 520g; Pointer length is 25mm; The spherical radius on elastic stem top is 45mm; Be with the anticreep packing on the elastic stem head.
Inner body surface is fixed with a bar shaped feather key vertically behind the above-mentioned shell, and the angle of body axis is 1 ' 20 behind this feather key and the shell ".
Beneficial effect: the utility model is more reasonable than existing concrete reisilometer structure, and technical parameter is optimized more, is fit to the detection of high-strength concrete more, has further improved detection high-strength concrete intensity accuracy, the measuring error that reduces.It is with a spring driven weight, by elastic stem attack concrete surface, measures distance-rebound value that weight is rebounded and, and with rebound value as the index relevant with intensity, infer a kind of utility model instrument of high-strength concrete intensity.When the high-strength concrete intensity detection, the utility model high-strength concrete reisilometer standard energy is 4.5J, increases than normal concrete reisilometer energy to be twice, and it is very little to detect error, can expand concrete sensing range to 20.0MPa～100.0MPa.
When the spherical radius on elastic stem top hour, the energy that concrete surface absorbs is big, rebound value is low, accuracy of detection reduces; When the spherical radius on elastic stem top was big, the energy that concrete surface absorbs was little, the rebound value height, but instrument size strengthens, and is unfavorable for that in situ concrete strength detects.The utility model is decided to be 45mm with the spherical radius on elastic stem top, both can handled easily, obviously improve the accuracy that detects again.Be with the anticreep packing on the elastic stem head, overcome the shortcoming that instrument comes off at work easily.Housing by shell precursor 7 and shell after body 29 be connected and form convenient maintenance and loading and unloading.
Behind feather key and the shell axis of body at an angle, one of its advantage is to make guide flange along the regulation orbiting motion.It two is the movement positions that make pointer, indicator slide block, to guarantee accurately to read the concrete springback value.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the position view of feather key;
Fig. 3 is the structural representation of the A-A section of Fig. 2.
Among the figure: the 1-beaver that prevents dust, the 2-block, the 3-buffer spring, the 4-spring base, the 5-half-round clamping ring, 6-anticreep packing, 7-shell precursor, the 8-elastic tension spring, the 9-centre pilot, the 10-elastic hammer, the 11-fixed block, the 12-rebound value is read chi, the 13-feather key, the 14-needle pivot, the 15-pointer, the 16-indicator slide block, the 17-guide flange, the 18-hook spring, the 19-tail-hood, the 20-compression spring, the 21-set nut, 22-adjusts nut, the 23-hook, the 24-bearing pin, the 25-push-button socket, the 26-button, 27-locatees hook lock, the 28-button spring, body behind the 29-shell, the 30-elastic stem.
(5) embodiment
Embodiment is referring to Fig. 1, this high-strength concrete reisilometer, it comprises housing, the telescopic elastic stem 30 in instrument shell front end body front port place, the elastic tension spring 8 that is connected with centre pilot 9, the ram hammer 10 that slides, ram hammer front end that elastic stem is slidingly connected on centre pilot, guide flange 17 that the ram hammer rear end connects by centre pilot and hook 18, the button of temporary fixed guide flange, the indicator slide block 16 that is positioned at ram hammer one side and can on needle pivot, slides, above-mentioned housing by shell after body 29 and shell precursor 7 be formed by connecting; The stroke of elastic hammer 10 is 100mm; The rigidity of elastic tension spring 8 is 900N/m; The quality of elastic hammer 10 is 520g; The length of pointer 15 is 25mm; The spherical radius R on elastic stem top is 45mm; Be with anticreep packing 6 on the elastic stem head.
The high-strength concrete reisilometer has an oval column Instrument shell, and it is threaded with the tail-hood 19 of afterbody, and front end is connected with block 2, and core section is encapsulated in the Instrument shell.The reisilometer front end has elastic stem 30 to stretch out outside the Instrument shell.Elastic stem 30 is connected with centre pilot 9 by buffer spring 3 and endoporus, and centre pilot 9 other ends are threaded with guide flange 17, guide flange 17 hinged hooks 23, and the other end of hook 23 is connected with guide flange 17 by hook spring 18.Be provided with compression spring 20 between guide flange 17 and the tail-hood 19.Centre pilot 9 and by the connected elastic hammer 10 that has that slides, elastic hammer 10 front ends and elastic tension spring 8 are affixed.Elastic tension spring 8 other ends are affixed with Instrument shell (body 29 assemblys behind shell precursor 7 and the shell) by spring base 4 and half-round clamping ring 5.Fixed block 11 is used for fixing needle pivot 14, and dustproof felt collar 1 is used to prevent that dust from entering in the machine by the gap between elastic stem 30 and the spring base 4.In addition, when reisilometer does not use, press the button 26, make button block guide flange 17.
At the beginning of the reisilometer test, elastic tension spring is in free state, decontrols button 26 earlier, and guide flange 17, centre pilot 9 are shifted the major part of elastic stem 30 outside the Instrument shell onto under the effect of compression spring 20, link up with 23 simultaneously and hang in the groove of elastic hammer 10.When reisilometer is pressed to concrete surface, elastic stem 30 is constantly withdrawn in Instrument shell, because link up with 23 and tangled elastic hammer 10 this moment, so, along with contracting in the elastic stem 30, elastic tension spring 8 is stretched, when reaching certain tensile elongation, link up with 23 tops and contact, and hook spring 18 is compressed, and hook 23 and elastic hammer 10 are thrown off suddenly with adjusting bolt 22, elastic hammer 10 passes through elastic stem 30 attack concrete surfaces along centre pilot 9, thereafter elastic hammer 10 is returned by bounce-back again, and at this moment elastic hammer 10 slides along needle pivot 14 by the indicator slide block 16 that pointer 15 drives on the needle pivot 14, has realized the whole process of reisilometer work.Rebound value by rebound value read chi 12 reading pointers stop to slide the back residing position obtain.
Referring to Fig. 2,3, body 29 inner faces are fixed with a bar shaped feather key 13 vertically behind the shell, and the angle of the axis of body 29 is 1 ' 20 behind feather key 13 and the shell ", one of its advantage is to make guide flange 17 along the regulation orbiting motion.It two is that elastic tension spring 8 is when being stretched, elastic hammer 10 can not drive pointer 15, indicator slide block 16 motions, and when elastic hammer 10 bounce-backs, guarantee that drive pointer 15, indicator slide block 16 move to the extreme higher position that elastic hammer 10 is rebounded, so that read the concrete springback value that chi 12 reads this time test by rebound value.
Claims (2)
1. high-strength concrete reisilometer, it comprises housing, the telescopic elastic stem in instrument shell front end body front port place, the elastic tension spring that is connected with centre pilot, the ram hammer that slides, ram hammer front end that elastic stem is slidingly connected on centre pilot, guide flange that the ram hammer rear end connects by centre pilot and hook, the button of temporary fixed guide flange, the indicator slide block that is positioned at ram hammer one side and can slides on needle pivot is characterized in that: above-mentioned housing by shell precursor and shell after body be formed by connecting; The elastic hammer stroke is 100mm; Elastic tension spring rigidity is 900N/m; The elastic hammer quality is 520g; Pointer length is 25mm; The spherical radius on elastic stem top is 45mm; Be with the anticreep packing on the elastic stem head.
2. high-strength concrete reisilometer according to claim 1 is characterized in that: inner body surface is fixed with a bar shaped feather key vertically behind the above-mentioned shell, and the angle of body axis is 1 ' 20 behind this feather key and the shell ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200225 CN2781355Y (en) | 2005-03-29 | 2005-03-29 | High strength concrete resiliometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200225 CN2781355Y (en) | 2005-03-29 | 2005-03-29 | High strength concrete resiliometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2781355Y true CN2781355Y (en) | 2006-05-17 |
Family
ID=36762557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520200225 Expired - Lifetime CN2781355Y (en) | 2005-03-29 | 2005-03-29 | High strength concrete resiliometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2781355Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539262A (en) * | 2011-12-23 | 2012-07-04 | 舟山市博远科技开发有限公司 | High strength concrete resiliometer and use method thereof |
| CN102818738A (en) * | 2012-09-04 | 2012-12-12 | 舟山市博远科技开发有限公司 | Rebound apparatus calibrating device and using method thereof |
| CN103091183A (en) * | 2013-01-18 | 2013-05-08 | 中电投工程研究检测评定中心 | Waterproof layer low-temperature performance detection device |
| CN103149104A (en) * | 2013-02-04 | 2013-06-12 | 中电投工程研究检测评定中心 | Strength detection device of structural member |
| CN103344516A (en) * | 2013-06-17 | 2013-10-09 | 曾汉 | Method for acknowledging rebound value of rebound instrument |
| CN105651632A (en) * | 2016-04-01 | 2016-06-08 | 宁波亿德仪器科技有限公司 | Tail cover connection structure of rebound hammer shell |
| CN107817183A (en) * | 2017-08-10 | 2018-03-20 | 上海多克实业有限公司 | A kind of single activation instrument |
| CN112881156A (en) * | 2021-03-04 | 2021-06-01 | 南京工业大学 | Nondestructive detector for strength of lightweight aggregate concrete |
| CN113640162A (en) * | 2021-09-06 | 2021-11-12 | 中国化学工程第三建设有限公司 | Pneumatic concrete resiliometer device |
| CN114264563A (en) * | 2021-12-27 | 2022-04-01 | 乐陵市回弹仪厂 | 3.503 Joule concrete resiliometer |
-
2005
- 2005-03-29 CN CN 200520200225 patent/CN2781355Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539262A (en) * | 2011-12-23 | 2012-07-04 | 舟山市博远科技开发有限公司 | High strength concrete resiliometer and use method thereof |
| CN102539262B (en) * | 2011-12-23 | 2014-04-09 | 舟山市博远科技开发有限公司 | High strength concrete resiliometer and use method thereof |
| CN102818738A (en) * | 2012-09-04 | 2012-12-12 | 舟山市博远科技开发有限公司 | Rebound apparatus calibrating device and using method thereof |
| CN103091183A (en) * | 2013-01-18 | 2013-05-08 | 中电投工程研究检测评定中心 | Waterproof layer low-temperature performance detection device |
| CN103091183B (en) * | 2013-01-18 | 2015-03-11 | 中电投工程研究检测评定中心 | Waterproof layer low-temperature performance detection device |
| CN103149104B (en) * | 2013-02-04 | 2016-08-03 | 中电投工程研究检测评定中心 | A kind of strength detection device of structural member |
| CN103149104A (en) * | 2013-02-04 | 2013-06-12 | 中电投工程研究检测评定中心 | Strength detection device of structural member |
| CN103344516A (en) * | 2013-06-17 | 2013-10-09 | 曾汉 | Method for acknowledging rebound value of rebound instrument |
| CN105651632A (en) * | 2016-04-01 | 2016-06-08 | 宁波亿德仪器科技有限公司 | Tail cover connection structure of rebound hammer shell |
| CN107817183A (en) * | 2017-08-10 | 2018-03-20 | 上海多克实业有限公司 | A kind of single activation instrument |
| CN112881156A (en) * | 2021-03-04 | 2021-06-01 | 南京工业大学 | Nondestructive detector for strength of lightweight aggregate concrete |
| CN112881156B (en) * | 2021-03-04 | 2022-04-05 | 同济大学建筑设计研究院(集团)有限公司 | Nondestructive detector for strength of lightweight aggregate concrete |
| CN113640162A (en) * | 2021-09-06 | 2021-11-12 | 中国化学工程第三建设有限公司 | Pneumatic concrete resiliometer device |
| CN113640162B (en) * | 2021-09-06 | 2023-08-04 | 中国化学工程第三建设有限公司 | Pneumatic concrete resiliometer device |
| CN114264563A (en) * | 2021-12-27 | 2022-04-01 | 乐陵市回弹仪厂 | 3.503 Joule concrete resiliometer |
| CN114264563B (en) * | 2021-12-27 | 2024-05-03 | 乐陵市回弹仪厂 | 3.503J concrete resiliometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150329 Granted publication date: 20060517 |