CN103575322B - Portable automobile negative pressure transducer, switch test device - Google Patents
Portable automobile negative pressure transducer, switch test device Download PDFInfo
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- CN103575322B CN103575322B CN201310593677.6A CN201310593677A CN103575322B CN 103575322 B CN103575322 B CN 103575322B CN 201310593677 A CN201310593677 A CN 201310593677A CN 103575322 B CN103575322 B CN 103575322B
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Abstract
The present invention relates to automobile negative pressure transducer, switch testing technology, specifically a kind of portable automobile negative pressure transducer, switch test device.The invention solves existing automobile negative pressure transducer, switch test device easily damages negative pressure transducer or negative pressure alarm switch, carry inconvenience, be of limited application and test the problem of poor accuracy.Portable automobile negative pressure transducer, switch test device, comprise piston cylinder, piston cylinder handle, piston rod, piston rod handle, piston, spring, the first connecting cylinder, the second connecting cylinder, the 3rd connecting cylinder, dividing plate, air hole, ball float, ball lever; Wherein, piston cylinder two ends are equipped with end wall; The upper end wall middle thereof of piston cylinder offers the first through hole; The lower end wall middle thereof of piston cylinder offers the second through hole; Described piston cylinder handle is U-shaped handle.The present invention is applicable to the test of automobile negative pressure transducer or negative pressure alarm switch.
Description
Technical field
The present invention relates to automobile negative pressure transducer, switch testing technology, specifically a kind of portable automobile negative pressure transducer, switch test device.
Background technology
Along with the development of automobile industry, car electrics are also constantly being upgraded.Therefore, in order to available protecting car electrics loop, pneumatic circuit unimpeded, and effectively to combine and monitoring, usually negative pressure transducer or negative pressure alarm switch can be installed on automobile.In actual application, in order to ensure that negative pressure transducer or negative pressure alarm switch can normally use, need to be tested by the performance of Special testing device to negative pressure transducer or negative pressure alarm switch.Under prior art conditions, automobile negative pressure transducer, switch test device all adopt the vacuum pump transformation of the way to form.Practice shows, existing automobile negative pressure transducer, switch test device limit due to self structure, there are the following problems: one, and the taken out negative pressure of existing automobile negative pressure transducer, switch test device is excessive, take out pressure excessive velocities, causes it easily to damage negative pressure transducer or negative pressure alarm switch.Its two, the volume of existing automobile negative pressure transducer, switch test device is excessive, quality is overweight, causes it to carry inconvenience.Its three, existing automobile negative pressure transducer, switch test device need electricity consumption, cause it to be of limited application.Its four, existing automobile negative pressure transducer, switch test device cannot accurately pressurizes, cause its test poor accuracy.Based on this, be necessary to invent a kind of brand-new automobile negative pressure transducer, switch test device, to solve existing automobile negative pressure transducer, switch test device easily damages negative pressure transducer or negative pressure alarm switch, carry inconvenience, be of limited application and test the problem of poor accuracy.
Summary of the invention
The present invention in order to solve existing automobile negative pressure transducer, switch test device easily damages negative pressure transducer or negative pressure alarm switch, carry inconvenience, be of limited application and test the problem of poor accuracy, provides a kind of portable automobile negative pressure transducer, switch test device.
The present invention adopts following technical scheme to realize: portable automobile negative pressure transducer, switch test device, comprise piston cylinder, piston cylinder handle, piston rod, piston rod handle, piston, spring, the first connecting cylinder, the second connecting cylinder, the 3rd connecting cylinder, dividing plate, air hole, ball float, ball lever; Wherein, piston cylinder two ends are equipped with end wall; The upper end wall middle thereof of piston cylinder offers the first through hole; The lower end wall middle thereof of piston cylinder offers the second through hole; Described piston cylinder handle is U-shaped handle; Open Side Down for U-shaped handle, and the two ends of U-shaped handle all curve inwardly; The both ends of the surface of U-shaped handle are all fixed with the lateral wall of piston cylinder; Piston rod runs through the first through hole; The flanking central of piston rod handle and the upper surface of piston rod are fixed; The side of piston and the madial wall slipper seal of piston cylinder are socketed, and the upper surface of piston central authorities are fixed with the lower surface of piston rod; The outside of piston rod is located at by spring housing, and the two ends of spring are fixed with the upper inner end wall of piston cylinder and the upper surface of piston respectively; The two ends of the first connecting cylinder are equipped with uncovered, and uncovered the sealing with the second through hole in the upper end of the first connecting cylinder is communicated with; The two ends of the second connecting cylinder are equipped with uncovered; The length of the second connecting cylinder is greater than the length of the first connecting cylinder, and the inner sidewall upper portion of the second connecting cylinder and the lateral wall of the first connecting cylinder seal and be socketed; The upper end of the 3rd connecting cylinder is provided with end wall, and the upper end wall middle thereof of the 3rd connecting cylinder offers third through-hole; The lower end of the 3rd connecting cylinder is provided with uncovered; Described dividing plate is hemisphere hull shape dividing plate; Hemisphere hull shape dividing plate concave upright, and seal in the middle part of the madial wall of the side of hemisphere hull shape dividing plate and the 3rd connecting cylinder and be socketed; The through concave surface central authorities being opened in hemisphere hull shape dividing plate of air hole; Ball float is between the upper end wall and the concave surface of hemisphere hull shape dividing plate of the 3rd connecting cylinder, and ball float is covered on air hole; Ball lever runs through third through-hole, and the sphere of the lower surface of ball lever and ball float is fixed.
During use, by test pipeline by uncovered for the lower end of the 3rd connecting cylinder with negative pressure transducer or the air intake opening of negative pressure alarm switch seal and be communicated with, and on test pipeline, vacuum table is installed, connect output signal test chart at the signal output part of negative pressure transducer or negative pressure alarm switch, as shown in Figure 5 simultaneously.Concrete use procedure is as follows: operating personnel with palm when held piston cylinder handle, and withhold piston rod handle with finger, and then upwards pull piston rod handle, makes piston rod handle drive piston upwards by piston rod.In the process, spring generation compression deformation.Under the swabbing action of piston, the inner chamber of the inner chamber of the first connecting cylinder, the inner chamber of the second connecting cylinder, the 3rd connecting cylinder all produces negative pressure.Under suction function, ball float moves upward and departs from air hole, and air hole is opened, and produces negative pressure thus in test pipeline.Then, the finger of operating personnel unclamps piston rod handle, and the spring of compression deformation promotes piston downwards, makes piston drive piston rod handle to move downward by piston rod.In the process, spring resets gradually.Under the impetus of piston, the inner chamber of the inner chamber of the first connecting cylinder, the inner chamber of the second connecting cylinder, the 3rd connecting cylinder all produces malleation.At positive pressure, ball float moves downward and capping air hole, and air hole is closed, and forms packing state thus in test pipeline.Based on said process, operating personnel pass through repeatedly pull and unclamp piston rod handle, and the negative pressure of testing in pipeline can be made to increase steadily.When negative pressure in pipeline to be tested reaches test request value (being generally-50KPa ~-6KPa), operating personnel stop pull piston rod handle, can start to test the performance of negative pressure transducer or negative pressure alarm switch.With existing automobile negative pressure transducer, switch test device is compared, portable automobile negative pressure transducer of the present invention, switch test device tool has the following advantages: one, portable automobile negative pressure transducer of the present invention, switch test device no longer produces negative pressure by vacuum pump, but produce negative pressure by the grip of operating personnel, and pass through repeatedly pull and unclamp piston rod handle negative pressure is increased steadily, effectively prevent on the one hand that can to take out negative pressure excessive thus, effectively prevent on the other hand and take out pressure excessive velocities, thus effectively prevent negative pressure transducer or negative pressure alarm switch is damaged.Its two, the volume of portable automobile negative pressure transducer of the present invention, switch test device is less, quality is lighter, thus its carry convenient, operation is more flexible.Its three, portable automobile negative pressure transducer of the present invention, switch test device can use without the need to electricity consumption, and thus its range of application is wider.Its four, portable automobile negative pressure transducer of the present invention, switch test device are by pull and unclamp piston rod handle and achieve accurate pressurize, and thus its test accuracy is stronger.In sum, portable automobile negative pressure transducer of the present invention, switch test device, based on brand new, efficiently solve existing automobile negative pressure transducer, switch test device easily damage negative pressure transducer or negative pressure alarm switch, carry inconvenience, be of limited application and test the problem of poor accuracy.
The present invention is rational in infrastructure, it is ingenious to design, efficiently solve existing automobile negative pressure transducer, switch test device easily damages negative pressure transducer or negative pressure alarm switch, carry inconvenience, be of limited application and test the problem of poor accuracy, is applicable to the test of automobile negative pressure transducer or negative pressure alarm switch.
Accompanying drawing explanation
Fig. 1 is external perspective structural representation of the present invention.
Fig. 2 is inner perspective view of the present invention.
Fig. 3 is inner plane structural representation of the present invention.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is using state reference diagram of the present invention.
In figure: 1-piston cylinder, 2-piston cylinder handle, 3-piston rod, 4-piston rod handle, 5-piston, 6-spring, 7-first connecting cylinder, 8-second connecting cylinder, 9-the 3rd connecting cylinder, 10-dividing plate, 11-air hole, 12-ball float, 13-ball lever, 14-tests pipeline, 15-negative pressure transducer or negative pressure alarm switch, 16-vacuum table, 17-outputs signal test chart.
Embodiment
Portable automobile negative pressure transducer, switch test device, comprise piston cylinder 1, piston cylinder handle 2, piston rod 3, piston rod handle 4, piston 5, spring 6, first connecting cylinder 7, second connecting cylinder 8, the 3rd connecting cylinder 9, dividing plate 10, air hole 11, ball float 12, ball lever 13; Wherein, piston cylinder 1 two ends are equipped with end wall; The upper end wall middle thereof of piston cylinder 1 offers the first through hole; The lower end wall middle thereof of piston cylinder 1 offers the second through hole; Described piston cylinder handle 2 is U-shaped handle; Open Side Down for U-shaped handle, and the two ends of U-shaped handle all curve inwardly; The both ends of the surface of U-shaped handle are all fixed with the lateral wall of piston cylinder 1; Piston rod 3 runs through the first through hole; The flanking central of piston rod handle 4 and the upper surface of piston rod 3 are fixed; The side of piston 5 and the madial wall slipper seal of piston cylinder 1 are socketed, and the upper surface of piston 5 central authorities are fixed with the lower surface of piston rod 3; Spring 6 is sheathed on the outside of piston rod 3, and the two ends of spring 6 are fixed with the upper inner end wall of piston cylinder 1 and the upper surface of piston 5 respectively; The two ends of the first connecting cylinder 7 are equipped with uncovered, and uncovered the sealing with the second through hole in the upper end of the first connecting cylinder 7 is communicated with; The two ends of the second connecting cylinder 8 are equipped with uncovered; The length of the second connecting cylinder 8 is greater than the length of the first connecting cylinder 7, and the inner sidewall upper portion of the second connecting cylinder 8 and the lateral wall of the first connecting cylinder 7 seal and be socketed; The upper end of the 3rd connecting cylinder 9 is provided with end wall, and the upper end wall middle thereof of the 3rd connecting cylinder 9 offers third through-hole; The lower end of the 3rd connecting cylinder 9 is provided with uncovered; Described dividing plate 10 is hemisphere hull shape dividing plate; Hemisphere hull shape dividing plate concave upright, and seal in the middle part of the madial wall of the side of hemisphere hull shape dividing plate and the 3rd connecting cylinder 9 and be socketed; The through concave surface central authorities being opened in hemisphere hull shape dividing plate of air hole 11; Ball float 12 is between the upper end wall and the concave surface of hemisphere hull shape dividing plate of the 3rd connecting cylinder 9, and ball float 12 is covered on air hole 11; Ball lever 13 runs through third through-hole, and the sphere of the lower surface of ball lever 13 and ball float 12 is fixed.
Described piston cylinder 1, first connecting cylinder 7, the 3rd connecting cylinder 9, ball lever 13 all adopt hard material to make; Described second connecting cylinder 8, ball float 12 all adopt soft material to make.
During concrete enforcement, the diameter of piston cylinder 1 is 45mm, and can take out negative pressure is 51KPa.The side of piston rod handle 4 is provided with to be convenient to point the depression of withholding.
Claims (1)
1. portable automobile negative pressure transducer, a switch test device, is characterized in that: comprise piston cylinder (1), piston cylinder handle (2), piston rod (3), piston rod handle (4), piston (5), spring (6), the first connecting cylinder (7), the second connecting cylinder (8), the 3rd connecting cylinder (9), dividing plate (10), air hole (11), ball float (12), ball lever (13); Wherein, piston cylinder (1) two ends are equipped with end wall; The upper end wall middle thereof of piston cylinder (1) offers the first through hole; The lower end wall middle thereof of piston cylinder (1) offers the second through hole; Described piston cylinder handle (2) is U-shaped handle; Open Side Down for U-shaped handle, and the two ends of U-shaped handle all curve inwardly; The both ends of the surface of U-shaped handle are all fixed with the lateral wall of piston cylinder (1); Piston rod (3) runs through the first through hole; The flanking central of piston rod handle (4) and the upper surface of piston rod (3) are fixed; The side of piston (5) and the madial wall slipper seal of piston cylinder (1) are socketed, and the upper surface of piston (5) central authorities are fixed with the lower surface of piston rod (3); Spring (6) is sheathed on the outside of piston rod (3), and the two ends of spring (6) are fixed with the upper inner end wall of piston cylinder (1) and the upper surface of piston (5) respectively; The two ends of the first connecting cylinder (7) are equipped with uncovered, and uncovered the sealing with the second through hole in the upper end of the first connecting cylinder (7) is communicated with; The two ends of the second connecting cylinder (8) are equipped with uncovered; The length of the second connecting cylinder (8) is greater than the length of the first connecting cylinder (7), and the lateral wall of the inner sidewall upper portion of the second connecting cylinder (8) and the first connecting cylinder (7) seals and is socketed; The upper end of the 3rd connecting cylinder (9) is provided with end wall, and the upper end wall middle thereof of the 3rd connecting cylinder (9) offers third through-hole; The lower end of the 3rd connecting cylinder (9) is provided with uncovered; Described dividing plate (10) is hemisphere hull shape dividing plate; Hemisphere hull shape dividing plate concave upright, and seal in the middle part of the madial wall of the side of hemisphere hull shape dividing plate and the 3rd connecting cylinder (9) and be socketed; The through concave surface central authorities being opened in hemisphere hull shape dividing plate of air hole (11); Between the upper end wall that ball float (12) is positioned at the 3rd connecting cylinder (9) and the concave surface of hemisphere hull shape dividing plate, and ball float (12) is covered on air hole (11); Ball lever (13) runs through third through-hole, and the sphere of the lower surface of ball lever (13) and ball float (12) is fixed;
Described piston cylinder (1), the first connecting cylinder (7), the 3rd connecting cylinder (9), ball lever (13) all adopt hard material to make; Described second connecting cylinder (8), ball float (12) all adopt soft material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593677.6A CN103575322B (en) | 2013-11-23 | 2013-11-23 | Portable automobile negative pressure transducer, switch test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593677.6A CN103575322B (en) | 2013-11-23 | 2013-11-23 | Portable automobile negative pressure transducer, switch test device |
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| CN103575322A CN103575322A (en) | 2014-02-12 |
| CN103575322B true CN103575322B (en) | 2016-02-10 |
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| CN201310593677.6A Active CN103575322B (en) | 2013-11-23 | 2013-11-23 | Portable automobile negative pressure transducer, switch test device |
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| CN105300446A (en) * | 2015-10-26 | 2016-02-03 | 上汽通用五菱汽车股份有限公司 | Testing device and testing method of performance of fuel tank cap in dust environment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203550989U (en) * | 2013-11-23 | 2014-04-16 | 山西大运汽车制造有限公司 | Portable test device for auto negative pressure sensor and switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| BE794068A (en) * | 1972-01-17 | 1973-07-16 | Volucompteurs Aster Boutillon | IMPROVEMENTS TO THE END OF AUTOMATIC CLOSING LIQUID DISTRIBUTION VALVES |
| CN2367255Y (en) * | 1999-04-23 | 2000-03-08 | 孔令义 | Skin separator |
| CN2680208Y (en) * | 2004-03-12 | 2005-02-23 | 燕凌云 | Fetal head vacuum suction apparatus capable of sucking with continuous metering |
| CN2715763Y (en) * | 2004-07-08 | 2005-08-10 | 申承华 | Manual negative pressure aspirator |
| CN2933425Y (en) * | 2006-01-19 | 2007-08-15 | 吕学成 | Pus continuous suction and exhaust device |
| JP2008068746A (en) * | 2006-09-14 | 2008-03-27 | Honda Motor Co Ltd | Negative pressure system of vehicle |
| CN201750877U (en) * | 2010-01-16 | 2011-02-23 | 中山市煜达模具有限公司 | Novel pump |
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| CN203550989U (en) * | 2013-11-23 | 2014-04-16 | 山西大运汽车制造有限公司 | Portable test device for auto negative pressure sensor and switch |
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Address after: 044000 No. 1 Airport Avenue, Yuncheng Airport Economic Development Zone, Shanxi Patentee after: DANYUN AUTOMOBILE CO., LTD. Address before: 044000 Shanxi province Yuncheng City Airport Tongda Road No. 8 Patentee before: Shanxi Dayun Automobile Manufacture Company |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180727 Address after: 442512 1 Dayun Road, Yunxian Economic Development Zone, Shiyan, Hubei Patentee after: HUBEI DAYUN AUTOMOBILE CO., LTD. Address before: 044000 1 Airport Avenue, Yuncheng Airport Economic Development Zone, Shanxi Patentee before: DANYUN AUTOMOBILE CO., LTD. |
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| TR01 | Transfer of patent right |