CN103575322A - Convenient device for testing automobile negative pressure transducer and switch - Google Patents
Convenient device for testing automobile negative pressure transducer and switch Download PDFInfo
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- CN103575322A CN103575322A CN201310593677.6A CN201310593677A CN103575322A CN 103575322 A CN103575322 A CN 103575322A CN 201310593677 A CN201310593677 A CN 201310593677A CN 103575322 A CN103575322 A CN 103575322A
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Abstract
The invention relates to the testing technology of an automobile negative pressure transducer and a switch, and in particular to a convenient device for testing the automobile negative pressure transducer and the switch. The convenient device solves the problems that the existing device for testing the automobile negative pressure transducer and the switch can easily cause damage to the negative pressure transducer or the negative pressure alarming switch, and is inconvenient to carry, restricted in the application range, and weak in the testing accuracy. The convenient device for testing the automobile negative pressure transducer and the switch comprises a piston barrel, a piston barrel handle, a piston rod, a piston rod handle, a piston, a spring, a first connecting barrel, a second connecting barrel, a third connecting barrel, a separating plate, a venthole, a floating ball and a floating ball rod, wherein end walls are arranged at the two ends of the piston barrel; a first through hole is through formed at the center of the upper end wall of the piston barrel; a second through hole is through formed at the center of the lower end wall of the piston barrel; the piston barrel handle is a U-shaped handle. The convenient device for testing the automobile negative pressure transducer and the switch is applicable for testing the automobile negative pressure transducer or the negative pressure alarming 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 in constantly upgrading.Therefore, in order effectively to protect the unimpeded of car electrics loop, pneumatic circuit, and effectively combination and monitoring, conventionally negative pressure transducer or negative pressure alarm switch can be installed on automobile.In actual application, in order to guarantee that negative pressure transducer or negative pressure alarm switch can normally be used, need to the performance of negative pressure transducer or negative pressure alarm switch, test by Special testing device.Under prior art condition, 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 are because self structure is limit, there are the following problems: one, 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, accurately pressurize of switch test device, 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 damage 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 easily damages negative pressure transducer or negative pressure alarm switch in order to solve existing automobile negative pressure transducer, switch test device, carries inconvenience, is of limited application and tests the problem of poor accuracy, and a kind of portable automobile negative pressure transducer, switch test device are provided.
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 central authorities of piston cylinder connect and offer the first through hole; The lower end wall central authorities of piston cylinder connect and offer 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; Side central authorities and the upper surface of piston rod of piston rod handle are fixed; The madial wall slipper seal socket of the side of piston and piston cylinder, and the upper surface of piston central authorities are fixed with the lower surface of piston rod; Spring housing is located at the outside of piston rod, 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 the upper end of the first connecting cylinder is uncovered is communicated with the second through hole sealing; 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 madial wall top of the second connecting cylinder and the lateral wall of the first connecting cylinder sealing socket; The upper end of the 3rd connecting cylinder is provided with end wall, and the perforation of the upper end wall of the 3rd connecting cylinder central authorities 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 the sealing socket of the madial wall of the side of hemisphere hull shape dividing plate and the 3rd connecting cylinder middle part; Air hole connects the concave surface central authorities that are opened in hemisphere hull shape dividing plate; Ball float is between the upper end wall of the 3rd connecting cylinder and the concave surface of hemisphere hull shape dividing plate, and ball float is covered on air hole; Ball lever runs through third through-hole, and the lower surface of ball lever and the sphere of ball float are fixed.
During use, by test pipeline is uncovered by the lower end of the 3rd connecting cylinder, seals and be communicated with the air intake opening of negative pressure transducer or negative pressure alarm switch, and on test pipeline, vacuum table is installed, signal output part at negative pressure transducer or negative pressure alarm switch connects output signal test chart simultaneously, as shown in Figure 5.Concrete use procedure is as follows: operating personnel hold piston cylinder handle with palm, and withholds piston rod handle with finger, and the pull piston rod handle that then makes progress, makes piston rod handle drive piston to move upward by piston rod.In this process, spring generation compression deformation.Under the swabbing action of piston, the inner chamber of the inner chamber of the first connecting cylinder, the second connecting cylinder, the inner chamber of the 3rd connecting cylinder all produce negative pressure.Under suction function, ball float moves upward and departs from air hole, and air hole is opened, and in test pipeline, produces thus negative pressure.Then, operating personnel's finger 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 this process, spring resets gradually.Under the impetus of piston, the inner chamber of the inner chamber of the first connecting cylinder, the second connecting cylinder, the inner chamber of the 3rd connecting cylinder all produce malleation.Under positive pressure, ball float moves downward and capping air hole, and air hole is closed, and in test pipeline, forms thus packing state.Based on said process, operating personnel are by pull repeatedly and unclamp piston rod handle, can make the negative pressure of testing in pipeline increase steadily.When the negative pressure in pipeline to be tested reaches test request value (being generally-50KPa ~-6KPa), operating personnel stop pull piston rod handle, can start the performance of negative pressure transducer or negative pressure alarm switch to test.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 operating personnel's grip, and by pull repeatedly with unclamp piston rod handle negative pressure is increased steadily, effectively avoided taking out on the one hand thus negative pressure excessive, effectively avoided on the other hand taking out pressure excessive velocities, thereby effectively prevented that negative pressure transducer or negative pressure alarm switch are 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 be used without electricity consumption, thereby its range of application is wider.Its four, portable automobile negative pressure transducer of the present invention, switch test device is by pull and unclamp piston rod handle and realized accurate pressurize, thereby its test accuracy is stronger.In sum, portable automobile negative pressure transducer of the present invention, switch test device be based on brand new, efficiently solves the problem that existing automobile negative pressure transducer, switch test device easily damage negative pressure transducer or negative pressure alarm switch, carry inconvenience, are of limited application and test poor accuracy.
The present invention is rational in infrastructure, it is ingenious to design, efficiently solve the problem that existing automobile negative pressure transducer, switch test device easily damage negative pressure transducer or negative pressure alarm switch, carry inconvenience, are of limited application and test poor accuracy, be applicable to the test of automobile negative pressure transducer or negative pressure alarm switch.
Accompanying drawing explanation
Fig. 1 is outside perspective view 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 use state reference map 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-the first connecting cylinder, 8-the 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-output 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, 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 central authorities of piston cylinder 1 connect and offer the first through hole; The lower end wall central authorities of piston cylinder 1 connect and offer 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; Side central authorities and the upper surface of piston rod 3 of piston rod handle 4 are fixed; The madial wall slipper seal socket of the side of piston 5 and piston cylinder 1, 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 the upper end of the first connecting cylinder 7 is uncovered is communicated with the second through hole sealing; 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 madial wall top of the second connecting cylinder 8 and the first connecting cylinder 7 sealing socket; The upper end of the 3rd connecting cylinder 9 is provided with end wall, and the perforation of the upper end wall of the 3rd connecting cylinder 9 central authorities 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 the sealing socket of the madial wall of the side of hemisphere hull shape dividing plate and the 3rd connecting cylinder 9 middle part; Air hole 11 connects the concave surface central authorities that are opened in hemisphere hull shape dividing plate; Ball float 12 is between the upper end wall of 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 the 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 is convenient to the depression that finger is withheld.
Claims (2)
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 central authorities of piston cylinder (1) connect and offer the first through hole; The lower end wall central authorities of piston cylinder (1) connect and offer 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; Side central authorities and the upper surface of piston rod (3) of piston rod handle (4) are fixed; The madial wall slipper seal socket of the side of piston (5) and piston cylinder (1), 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 the upper end of the first connecting cylinder (7) is uncovered is communicated with the second through hole sealing; 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 madial wall top of the second connecting cylinder (8) and the first connecting cylinder (7) sealing socket; The upper end of the 3rd connecting cylinder (9) is provided with end wall, and the perforation of the upper end wall of the 3rd connecting cylinder (9) central authorities 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 the sealing socket of the madial wall of the side of hemisphere hull shape dividing plate and the 3rd connecting cylinder (9) middle part; Air hole (11) connects the concave surface central authorities that are opened in hemisphere hull shape dividing plate; Ball float (12) is positioned between the upper end wall of 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.
2. portable automobile negative pressure transducer according to claim 1, switch test device, is characterized in that: described piston cylinder (1), the first connecting cylinder (7), the 3rd connecting cylinder (9), ball lever (13) all adopt hard material to make; Described the 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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| Publication Number | Publication Date |
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| CN103575322A true CN103575322A (en) | 2014-02-12 |
| CN103575322B CN103575322B (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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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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| CN (1) | CN103575322B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (8)
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| US3877498A (en) * | 1972-01-17 | 1975-04-15 | Volucompteurs Aster Boutillon | Nozzles of fluid dispensing valves of the automatic shutoff type |
| 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 |
| 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 |
-
2013
- 2013-11-23 CN CN201310593677.6A patent/CN103575322B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877498A (en) * | 1972-01-17 | 1975-04-15 | Volucompteurs Aster Boutillon | Nozzles of fluid dispensing valves of the automatic shutoff type |
| 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 |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103575322B (en) | 2016-02-10 |
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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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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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