CN211784963U - A tip penetration judges suggestion device for pitch penetration test - Google Patents
A tip penetration judges suggestion device for pitch penetration test Download PDFInfo
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- CN211784963U CN211784963U CN202020169378.5U CN202020169378U CN211784963U CN 211784963 U CN211784963 U CN 211784963U CN 202020169378 U CN202020169378 U CN 202020169378U CN 211784963 U CN211784963 U CN 211784963U
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Abstract
The utility model discloses a needle point penetration judgment prompting device for an asphalt penetration test, which comprises a base, a vertical ruler, a connecting rod needle, a standard needle, a pressure sensor and an indicator light; the vertical ruler and the connecting rod needle are respectively connected with the base; the standard needle and the pressure sensor are respectively connected with the connecting rod needle; the indicator light is fixedly connected to the base. The device provided by the utility model simple structure, practicality are strong, and pressure when utilizing pressure sensor measurement standard needle point and pitch surface contact judges whether just with pitch surface contact and through pilot lamp suggestion test personnel, compares the tradition and whether contact with pitch surface with the naked eye observation judgement standard needle point has higher judgement precision, can obtain higher needle penetration test precision.
Description
Technical Field
The utility model relates to a pitch detects technical field, especially relates to a needle point sounding judges suggestion device for pitch penetration test.
Background
The asphalt penetration test is one of important indexes for asphalt quality detection, and is an index which represents the softness and hardness degree and consistency of asphalt, the capability of resisting shear failure and reflects the relative viscosity of asphalt under certain conditions. In actual measurement, the consistency of viscous asphalt is usually measured by adopting an asphalt penetration test, in the method, a standard needle and a needle connecting rod are slowly inserted into an asphalt sample by the self gravity at test temperatures of 5 ℃, 15 ℃, 25 ℃, 35 ℃ and the like, the depth of the standard needle with specified mass inserted into the asphalt sample is tested after specified time, and the penetration test precision can reach 0.1 mm.
The starting position of the standard needle during the test should be just in contact with the upper surface of the bitumen sample. Therefore, the contact position of the standard needle point and the surface of the asphalt sample has great influence on the accuracy of a detection result during the test of the penetrometer, and the problem of the asphalt penetrometer that how to ensure that the standard needle point is just contacted with the surface of the asphalt sample is a problem to be solved urgently. The needle point of the standard needle and the surface contact condition of the asphalt sample are usually observed through reflection of a reflector or a spotlight bulb on a needle penetration tester in the prior needle penetration test, because the needle point of the standard needle and the asphalt sample are both positioned underwater, water has a refraction effect on light, the needle point position of the standard needle is difficult to accurately observe through naked eyes, whether the needle point of the standard needle is just in surface contact with asphalt is difficult to ensure, and the test operation can cause larger errors to the test result.
Disclosure of Invention
For solving the technical problem, the utility model aims at providing a tip sounding judgement suggestion device for pitch needle penetration is experimental, pressure judgement when the device utilizes pressure sensor measurement standard needle tip and pitch surface contact whether just with pitch surface contact and through pilot lamp suggestion testing personnel, compare the tradition with the naked eye observation judge whether standard needle tip contacts with the pitch surface has higher judgement precision, can obtain higher needle penetration test precision.
The purpose of the utility model is realized through the following technical scheme:
a tip penetration judges suggestion device for experimental pitch penetration, includes:
the device comprises a base (101), a vertical ruler (102), a connecting rod needle (103), a standard needle (104), a pressure sensor (105) and an indicator light (106);
the vertical ruler (102) and the connecting rod needle (103) are respectively connected with the base (101);
the standard needle (104) and the pressure sensor (105) are respectively connected with the connecting rod needle (103);
the indicator light (106) is fixedly connected to the base (101).
Compared with the prior art, the utility model discloses an advantage can have as follows to one or more embodiments:
the pressure sensor is used for measuring the pressure when the needle point of the standard needle is in contact with the asphalt surface, whether the needle point is in contact with the asphalt surface is judged, and a tester is prompted through the indicator lamp.
Drawings
FIG. 1 is a schematic structural view of a needle penetration judgment and prompt device for an asphalt penetration test.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1, the structure of the needle penetration judgment prompting device for the asphalt penetration test comprises a base 101, a vertical ruler 102, a connecting rod needle 103, a standard needle 104, a pressure sensor 105 and an indicator light 106; the vertical ruler 102 and the connecting rod needle 103 are respectively connected with the base 101; the standard needle 104 and the pressure sensor 105 are respectively connected with the connecting rod needle 103; the indicator light 106 is fixedly connected to the base 101.
The base 101 is connected with a power supply and consists of a base and an instrument shell; a constant-temperature water bath vessel is arranged on the base; the instrument shell comprises an upper shell and a lower shell, and two ends of the instrument shell are provided with fine knobs which can be adjusted up and down.
The upper shell of the base is respectively connected with the vertical ruler 102 and the indicator light 106, and the lower shell is connected with the connecting rod needle 103.
The front end of the vertical ruler 102 is provided with a penetration display screen, and displacement of the vertical ruler 102 in the vertical direction is recorded through a displacement sensor and displayed on the display screen.
Weights are arranged at the lower end of the connecting rod needle 103; the bottom end of the connecting rod needle 103 is fixedly connected with the top end of the standard needle 104 through a nut, and the top end of the connecting rod needle 103 is connected with the pressure sensor 105; the pressure generated by the contact of the needle tip at the bottom end of the standard needle 104 and the asphalt surface is transmitted to the pressure sensor 105 through the connecting rod needle 103.
The indicator light 106 is also connected with the pressure sensor 105, and the pressure sensor 105 controls the connection of the lead of the indicator light 106 and the power supply according to the received pressure value. When the pressure received by the pressure sensor reaches a certain value, the pressure sensor controls the conducting wire of the indicating lamp to be connected with the external power supply, and the indicating lamp is changed from dark to bright to prompt a tester whether the needle point of the standard needle is just in contact with the surface of the asphalt.
The working process of the embodiment is as follows:
firstly, setting the water temperature of a constant-temperature water bath vessel as a test temperature, and putting a heat-insulated asphalt sample to be tested into the constant-temperature water bath vessel; secondly, rotating an upper and lower adjusting coarse knob on the penetrometer to put a lower needle connecting rod to be close to the surface of the asphalt, rotating an upper and lower adjusting fine knob to be gradually close to the surface of the asphalt after the upper and lower adjusting coarse knob is close to the surface of the asphalt, when the needle point of the standard needle just contacts with the surface of the asphalt, the pressure is rapidly increased, a pressure sensor rapidly responds, a lead of an indicator lamp is controlled to be communicated with an external power supply, and the indicator lamp prompts a tester that the standard needle just reaches an initial position, namely just contacts with the upper surface; and finally, a starting button of the base is pressed to carry out a standard test, the test is automatically stopped after 5s, and the displacement sensor displays the acquired vertical displacement data in the penetration display screen. When the pressure value that pressure sensor gathered in the device is less, can not control the wire and the external power switch-on of pilot lamp, avoid contacting the condition that water can cause the pilot lamp to light when the standard needle point. The device simple structure, practicality are strong, and pressure when utilizing pressure sensor measurement standard needle point and pitch surface contact judges whether contact with pitch surface just and through pilot lamp suggestion test personnel, compares the tradition and observes whether contact with pitch surface with the naked eye and judge that standard needle point has higher judgement precision, can obtain higher penetration test precision.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A needle point penetration judgment prompting device for an asphalt penetration test is characterized by comprising a base (101), a vertical ruler (102), a connecting rod needle (103), a standard needle (104), a pressure sensor (105) and an indicator light (106);
the vertical ruler (102) and the connecting rod needle (103) are respectively connected with the base (101);
the standard needle (104) and the pressure sensor (105) are respectively connected with the connecting rod needle (103);
the indicator light (106) is fixedly connected to the base (101).
2. The needle point penetration judgment prompting device for the asphalt penetration test as claimed in claim 1, wherein the base (101) is connected with a power supply and consists of a base and an instrument shell;
a constant-temperature water bath vessel is arranged on the base;
the instrument shell comprises an upper shell and a lower shell, and two ends of the instrument shell are provided with fine knobs which can be adjusted up and down.
3. The tip penetration judgment prompting device for the asphalt penetration test according to claim 2,
the upper shell of the base is respectively connected with the vertical ruler (102) and the indicator light (106), and the lower shell is connected with the connecting rod needle (103).
4. The needle point penetration judgment prompting device for the asphalt penetration test according to claim 1, wherein a penetration display screen is arranged at the front end of the vertical ruler (102), and the displacement of the vertical ruler (102) in the vertical direction is recorded by a displacement sensor and displayed on the display screen.
5. The needle point penetration judgment prompting device for the asphalt penetration test according to claim 1, wherein a weight is arranged at the lower end of the connecting rod needle (103); the bottom end of the connecting rod needle (103) is fixedly connected with the top end of the standard needle (104) through a nut, and the top end of the connecting rod needle (103) is connected with the pressure sensor (105); the pressure generated by the contact of the needle tip at the bottom end of the standard needle (104) and the asphalt surface is transmitted to the pressure sensor (105) through the connecting rod needle (103).
6. The needle tip penetration judgment prompting device for the asphalt penetration test as claimed in claim 1, wherein the indicator light (106) is further connected with the pressure sensor (105), and the pressure sensor (105) controls the connection of the lead of the indicator light (106) and the power supply according to the received pressure value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020169378.5U CN211784963U (en) | 2020-02-14 | 2020-02-14 | A tip penetration judges suggestion device for pitch penetration test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020169378.5U CN211784963U (en) | 2020-02-14 | 2020-02-14 | A tip penetration judges suggestion device for pitch penetration test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211784963U true CN211784963U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020169378.5U Active CN211784963U (en) | 2020-02-14 | 2020-02-14 | A tip penetration judges suggestion device for pitch penetration test |
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| Country | Link |
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| CN (1) | CN211784963U (en) |
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2020
- 2020-02-14 CN CN202020169378.5U patent/CN211784963U/en active Active
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Address after: 518053 1st floor, No.13, Shenyun Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Taike Technology Co.,Ltd. Address before: 518053 1st floor, No.13, Shenyun Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN TAIKE TEST CO.,LTD. |