CN203324125U - Concrete strength tester - Google Patents
Concrete strength tester Download PDFInfo
- Publication number
- CN203324125U CN203324125U CN2013203311728U CN201320331172U CN203324125U CN 203324125 U CN203324125 U CN 203324125U CN 2013203311728 U CN2013203311728 U CN 2013203311728U CN 201320331172 U CN201320331172 U CN 201320331172U CN 203324125 U CN203324125 U CN 203324125U
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- CN
- China
- Prior art keywords
- concrete strength
- shell
- strength tester
- light reflection
- main control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a concrete strength tester which comprises a mechanical rebound apparatus and a host component, wherein the mechanical rebound apparatus comprises a shell and a rebound component arranged in the shell; the rebound component comprises an impact hammer body; the host component comprises a main control circuit board as well as a sensor, a display screen and a control key which are electrically connected with the main control circuit board respectively; the sensor is a speed sensor and comprises a light reflection element and a phototube; the light reflection element is arranged on the impact hammer body; the phototube is fixed on the shell and is corresponding to the light reflection element; and when sliding on the impact hammer body relative to the shell, the phototube returns a pulse signal to the main control circuit board. According to the concrete strength tester provided by the utility model, by adopting the light reflection element and the phototube structure type speed sensor, a relationship of light reflection and reflected light reception can be formed, thus the undershooting and rebound speed of the impact hammer body can be directly sensed, the middle energy loss is reduced, and the measurement precision is greatly improved.
Description
Technical field
The utility model relates to a kind of tester, specifically, relates to a kind of for measuring the tester of concrete crushing strength.
Background technology
At present, statistics have shown reisilometer for the tester of measuring concrete crushing strength, existing digital display resiliometer is that CN202599776U, name are called the disclosed structure of Chinese utility model patent of " concrete strength tester " just like notification number, it comprises mechanical reisilometer and host part, the machinery reisilometer comprises shell and resilience parts in the enclosure is set, the resilience parts connect the indicator slide block that an opposite shell is slided, host part comprises main control board, the sensor be electrically connected to respectively with main control board, display screen and control button.Sensor is speed pickup, it comprises optocoupler digital processing unit and photoelectrical coupler, photoelectrical coupler is fixedly installed on shell, the optocoupler digital processing unit is connected with main control board with photoelectrical coupler respectively, indicator slide block is corresponding with photoelectrical coupler, and photoelectrical coupler returns to pulse signal to the optocoupler digital processing unit when the indicator slide block opposite shell is slided.The digital display resiliometer of this kind of structure is simple in structure, measuring accuracy is high, easy and simple to handle.Yet, due to its sensor measurement is the speed of pointer slide block, rather than the speed of the resilience parts of directly measuring, indicator slide block has energy loss, therefore the concrete crushing strength that the tester by this kind of structure obtains has the problem of measurement precision.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of speed that can directly measure the resilience parts, the concrete strength tester that measuring accuracy is higher.
To achieve these goals, concrete strength tester of the present utility model, comprise mechanical reisilometer and host part, described mechanical reisilometer comprises shell and is arranged on the resilience parts in described shell, described resilience parts comprise impact hammer, described host part comprises main control board, the sensor be electrically connected to respectively with described main control board, display screen and control button, described sensor is speed pickup, it comprises light reflection element and photoelectric tube, described light reflection element is arranged on described impact hammer, described photoelectric tube is fixedly installed on described shell corresponding with described light reflection element, and described photoelectric tube returns to pulse signal to described main control board when the relatively described shell of described impact hammer slides.
Above-mentioned concrete strength tester, wherein, be provided with sensor stand on described shell, and described photoelectric tube is arranged on described sensor stand.
Above-mentioned concrete strength tester, wherein, described photoelectric tube has incidence surface, and the relatively described sensor stand of described incidence surface has the pitch angle of 30～85 degree.
Above-mentioned concrete strength tester, wherein, have fillet surface on described impact hammer, and described light reflection element is formed on described fillet surface.
Above-mentioned concrete strength tester, wherein, described fillet surface is parallel with described incidence surface.
Above-mentioned concrete strength tester, wherein, described photoelectric tube is one.
Above-mentioned concrete strength tester, wherein, described photoelectric tube is more than two.
Above-mentioned concrete strength tester, wherein, described two above photoelectric tubes are arranged side by side on described sensor stand.
Beneficial functional of the present utility model is: the setting of the speed pickup by light reflection element and photoelectric tube structural formula, can form the light emission and receive the reflected light relation, thereby the direct undershoot of inductive kick hammer body and return the speed while playing, reduce the intermediate energy loss, greatly improved measuring accuracy.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
The accompanying drawing explanation
The structural drawing that Fig. 1 a is concrete strength tester of the present utility model;
Fig. 1 b is the A section enlarged drawing in Fig. 1 a;
The structured flowchart of the host part that Fig. 2 is the utility model concrete strength tester.
Wherein, Reference numeral
10-mechanical reisilometer
11-shell
12-resilience parts
121-impact hammer
1211-fillet surface
20-host part
21-main control board
22-speed pickup
221-light reflection element
222-photoelectric tube
2221-incidence surface
23-display screen
24-control button
3-sensor stand
Embodiment
Below in conjunction with the drawings and specific embodiments, technical solutions of the utility model being described in detail, further to understand the purpose of this utility model, scheme and effect, but is not the restriction as the utility model claims protection domain.
Consult Fig. 1 a to Fig. 2, as shown in the figure, concrete strength tester of the present utility model, comprise mechanical reisilometer 10 and host part 20, machinery reisilometer 10 comprises shell 11 and is arranged on the resilience parts 12 in shell 11, resilience parts 12 comprise impact hammer 121, and in use, resilience parts 12 are in the interior slip of shell 11 for the concrete strength tester.Because mechanical reisilometer 10 belongs to prior art, at this, just its structure is not described in detail.
In order to facilitate the setting of photoelectric tube 222, be provided with sensor stand 3 on shell 11, photoelectric tube 222 is arranged on sensor stand 3.Photoelectric tube 222 has incidence surface 2221, and the relative sensor stand 3 of this incidence surface 2221 has tiltangleθ, and preferably, tiltangleθ is 30～85 degree.Further, have fillet surface 1211 on impact hammer 121, light reflection element 221 is formed on fillet surface 1211, and fillet surface 1211 is preferably parallel with incidence surface 2221, to facilitate the reflected light sent from light reflection element 221, vertically enters incidence surface 221.
In actual use, the number of photoelectric tube 222 can be one, also can be more than two, and when photoelectric tube is two when above, two above photoelectric tubes are arranged side by side on sensor stand 3.
By said structure, when the concrete strength tester in use, resilience parts 12 are in the interior slip of shell 11, thus the light quantity that causes photoelectric tube 222 to receive light reflection elements 221 reflections changes, to light main control board 21, to return to pulse signal.This pulse signal is changed into time t by main control board 21.Due to the stroke s(of resilience parts 12, displacement) determine, main control board 21 can calculate the speed of resilience parts 12 according to formula v=s/t, and then obtains concrete compressive strength equivalent Q according to this speed, (due to
Wherein, M1 is the undershoot energy of resilience parts 12, and M2 is the resilient energy of resilience parts 12, because energy is directly proportional to speed, so,
V1 is the undershoot speed of resilience parts 12, and v2 is the rebound velocity of resilience parts 12), this compressive strength equivalent intuitively shows by display screen 23.Certainly, display screen 23 is not limited to and shows the compressive strength equivalent, but display speed also.Can convert to and put into practice compressive strength by this equivalent.
In the present embodiment, main control board 21 can be arranged in shell 11, and display screen 23 and control button 24 are arranged on shell 11.Main control board 21 also can be arranged at outside shell 11, specifically, main control board 21 can be arranged to (not shown) in an independent housing, this independent housing is independent of shell 11 and exists, display screen 23 and control button 24 and be arranged on this independent housing.
In addition, can also be integrated with storer on main control board 21, the data that transmit to store photoelectric tube 222, and, main control board 21 can also be connected with USB joint (not shown), to facilitate the data that will store, derives, certainly, this USB joint can be also the joint of other form, as long as can conveniently the data that store be derived.
Certainly; the utility model also can have other various embodiments; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (8)
1. a concrete strength tester, comprise mechanical reisilometer and host part, described mechanical reisilometer comprises shell and is arranged on the resilience parts in described shell, described resilience parts comprise impact hammer, described host part comprises main control board, the sensor be electrically connected to respectively with described main control board, display screen and control button, it is characterized in that, described sensor is speed pickup, it comprises light reflection element and photoelectric tube, described light reflection element is arranged on impact hammer, described photoelectric tube is fixedly installed on shell corresponding with light reflection element, and described photoelectric tube returns to pulse signal to main control board when the impact hammer opposite shell is slided.
2. concrete strength tester according to claim 1, is characterized in that, on described shell, is provided with sensor stand, and described photoelectric tube is arranged on described sensor stand.
3. concrete strength tester according to claim 2, is characterized in that, described photoelectric tube has incidence surface, and the relatively described sensor stand of described incidence surface has the pitch angle of 30～85 degree.
4. concrete strength tester according to claim 3, is characterized in that, on described impact hammer, has fillet surface, and described light reflection element is formed on described fillet surface.
5. concrete strength tester according to claim 4, is characterized in that, described fillet surface is parallel with described incidence surface.
6. according to the described concrete strength tester of any one in claim 1-5, it is characterized in that, described photoelectric tube is one.
7. according to the described concrete strength tester of any one in claim 1-5, it is characterized in that, described photoelectric tube is more than two.
8. concrete strength tester according to claim 7, is characterized in that, described two above photoelectric tubes are arranged side by side on described sensor stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203311728U CN203324125U (en) | 2013-06-08 | 2013-06-08 | Concrete strength tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203311728U CN203324125U (en) | 2013-06-08 | 2013-06-08 | Concrete strength tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324125U true CN203324125U (en) | 2013-12-04 |
Family
ID=49663464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203311728U Expired - Lifetime CN203324125U (en) | 2013-06-08 | 2013-06-08 | Concrete strength tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203324125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323782A (en) * | 2016-08-29 | 2017-01-11 | 西安超越智能科技有限公司 | Pneumatic rebound test hammer |
-
2013
- 2013-06-08 CN CN2013203311728U patent/CN203324125U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323782A (en) * | 2016-08-29 | 2017-01-11 | 西安超越智能科技有限公司 | Pneumatic rebound test hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |