CN2153793Y - Tyre inner tube pressure indicator - Google Patents
Tyre inner tube pressure indicator Download PDFInfo
- Publication number
- CN2153793Y CN2153793Y CN 92233458 CN92233458U CN2153793Y CN 2153793 Y CN2153793 Y CN 2153793Y CN 92233458 CN92233458 CN 92233458 CN 92233458 U CN92233458 U CN 92233458U CN 2153793 Y CN2153793 Y CN 2153793Y
- Authority
- CN
- China
- Prior art keywords
- inner tube
- kapillary
- tyre
- drop
- display unit
- Prior art date
- 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 - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides an inner tube pressure indicator composed of a transparent capillary pipe with one end sealed, liquid drops capable of generating capillary phenomenon with the capillary pipe, gas sealed in the capillary pipe, etc. Compared with pressing the outer wall of tyre cover by hand or tool, the method of measuring inner tube gas pressure by observing the volume change of the liquid is convenient and precise, and real-time detection can be carried out.
Description
The utility model relates to the employed annex of land transport vehicle (non-track-running), refers in particular to the device of the interior tire pressure that is used for showing common bicycle and ordinary motor vehicle.
The inner tube of a tyre that conventional tyre generally includes cover tire and matches.Owing to all kinds of reasons such as inboard wall is aging, gaseous core poor sealing performances, make the continuous seepage of inner tube of a tyre gas inside of having inflated.For tire can under normal circumstances be used, just need to detect the pressure of gas in the inner tube of a tyre.Usual way is: with hand or instrument, and compressing cover tire outer wall, by the deflection of detection cover tire outer wall and the relation of suffered external force, whether the force value of judging gas in the inner tube of a tyre is at tolerance band.Because cover tire has certain elasticity coefficient, makes measured value and actual value have deviation.And, because cover tire wearing and tearing, the aging variation that can produce elasticity coefficient in use makes that above-mentioned deviation is difficult for revising.If directly remove to oppress the cover tire outer wall with hand, method is easy, but except that producing above-mentioned deviation, goes back because of antihygienic while of this method because human factor makes measured value itself that error be arranged.So in sum, said method only limits to be used in the not high occasion of accuracy requirement.
The purpose of this utility model provides the device of gaseous tension in a kind of energy The real time measure inner tube of a tyre.
Another purpose of the present utility model provides a kind of gaseous core that uses said apparatus to measure inner tube of a tyre inwall gaseous tension in real time.
The type that also has a purpose to provide the said drop that said apparatus adopts of the present utility model.
The purpose of this utility model is to realize like this.
Transparent kapillary with end sealing, in said kapillary inside, have and to separate by an end that is closed in said kapillary gas inside and the said sealing of said kapillary with the drop of said kapillary generation capillarity, the untight end of said kapillary links to each other with the measured inner tube of a tyre and inside communicates, and puts in the said inner tube of a tyre of normal operating condition gaseous tension at least and put on the position of said gaseous tension at least one the liquid level place of said drop of prescribing a time limit down on said kapillary in the position at last at least one the liquid level place of said drop of prescribing a time limit.
Part that the untight end of the said kapillary in front links to each other with the said inner tube of a tyre and said inside communicates can be directly to link to each other,, the gaseous core position and the connection that also can be installed in the said inner tube of a tyre can substitute said gaseous core is realized inflation to the said inner tube of a tyre function with the retaining valve that common inflator is complementary.
The kapillary that is adopted can be to be straight tube in the zone at drop place at least.
The said drop that is adopted then can adopt and not soak under the normal temperature normality with said capillary tube inner wall and the volume of said drop can fill said liquid capillaceous one section at least.
The utility model has the advantages that:
As everyone knows, comparing with normal temperature and pressure, under the situation that temperature is not too low, pressure is not too high, gas is observed Boyle, Robert---boyle's law, promptly under certain condition, the gas of certain mass, its body and be inversely proportional to pressure, thereby under the uniform temperature condition, be fit to be enclosed in the kapillary gas inside.Simultaneously, according to Charles's law, the gas of certain mass, under isobaric condition, its volume is directly proportional with absolute temperature.And gas and the gas of sealing in the kapillary thereby are reached a conclusion under same environment in the inner tube of a tyre: be closed in the interior gaseous tension of kapillary gas inside volume and the inner tube of a tyre and be inversely proportional to.Thereby can be directly by distinguishing that being enclosed in kapillary gas inside volume measures to gaseous tension in the inner tube of a tyre.Simultaneously, on kapillary, put on the position at least one liquid level place when upper pressure limit and low pressure limit at least.At least can distinguish then whether gaseous tension in the inner tube of a tyre can guarantee the normal use of tire, because the part that links to each other with the inner tube of a tyre at the untight end of kapillary is through arrangement retaining valve, the common gaseous core of the alternative common inner tube of a tyre.So use the utility model, can be in the structure that does not change the common inner tube of a tyre, only by displacing the common gaseous core of the common inner tube of a tyre, have the function that to inflate the inner tube of a tyre when making the gaseous tension of the utility model in measuring the inner tube of a tyre, and can detect in real time.
The kapillary that is adopted is a straight tube in the zone at drop place at least, and then the measurement because of the volume size can directly be converted to the straight-tube portion measurement of length, thereby directly perceived, convenient.
The drop that is adopted is if soak into capillary tube inner wall, the surface tension that then shows liquid internal greater than with the surface tension of capillary tube inner wall, thereby compare with the drop that can produce infiltration, when vibrating, be not easy fragmentation.
Be preferred embodiment below.
Accompanying drawing is the cutaway view Amplified image that the inner tube of a tyre pressure display unit of retaining valve is installed.
The nut 2 through having necking down and the screw threads for fastening of metalwork 6 are blocked aperture 5 and are clamped on rubber tube 4 on the metalwork 1 and be clamped on taper surface 3 and the common retaining valve of forming on the metalwork 6 simultaneously.Outer wall has the inside of the kapillary of being made by glass 11 of red ring 7, green ring 8, yellow ring 9 that air 10 by mercury 12 sealings is arranged.Nut 13 with necking down is threaded with metalwork 6 and through sealing ring 14 sealings.Wherein, tire pressure is in the position of 12 1 liquid levels of mercury of prescribing a time limit down in red ring 7 expressions, and green ring 8 is the position of 12 1 liquid levels of optimum condition mercury, and yellow ring 9 is the position at 12 1 liquid levels of mercury of prescribing a time limit down.One end of nut 15 is fastening with right-hand thread and metalwork 6.Be clamped on 16 left-hand thread (LHT)s that can be mated by the other end of nut 15 of rubber tube on the metalwork 6, be used for tightening with the taper surface 18 of the inner tube of a tyre air intake opening 17 shown in the double dot dash line with left-hand thread (LHT).During use, adopt common inflator to metalwork 1 inflation, gas enters in the metalwork 6 and enters the inner tube of a tyre along the aperture 5 of metalwork 1.Detection to gaseous tension in the inner tube of a tyre is then determined in the position of kapillary 11 by observing mercury 12.The a certain given level that should guarantee the mercury 12 of inner tube of a tyre tire pressure in normal operating condition is used for distinguishing is encircled between 9 at redness ring 7 and yellow, and optimum condition is that said given level is in position shown in the green ring 8.
Claims (4)
1, inner tube of a tyre pressure display unit, it is characterized in that: with the transparent kapillary of end sealing, in said kapillary inside, have and to separate by an end that is closed in said kapillary gas inside and the said sealing of said kapillary with the drop of said kapillary generation capillarity, the untight end of said kapillary links to each other with the measured inner tube of a tyre and inside communicates, and puts in the said inner tube of a tyre of normal operating condition gaseous tension at least and put on the position of said gaseous tension at least one the liquid level place of said drop of prescribing a time limit down on said kapillary in the position at last at least one the liquid level place of said drop of prescribing a time limit.
2, as the said inner tube of a tyre pressure display unit of claim 1, it is characterized in that: the gaseous core position that can link to each other with the untight end of said kapillary with the retaining valve of common inflator coupling and can be installed in the said inner tube of a tyre is arranged.
3, inner tube of a tyre pressure display unit as claimed in claim 1 is characterized in that: said kapillary is a straight tube in the zone at drop place at least.
4, inner tube of a tyre pressure display unit as claimed in claim 1 is characterized in that: said drop refers to and does not soak under the normal temperature normality with said capillary tube inner wall and the volume of said drop can fill said liquid capillaceous one section at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233458 CN2153793Y (en) | 1992-09-12 | 1992-09-12 | Tyre inner tube pressure indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233458 CN2153793Y (en) | 1992-09-12 | 1992-09-12 | Tyre inner tube pressure indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2153793Y true CN2153793Y (en) | 1994-01-19 |
Family
ID=33775781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92233458 Expired - Fee Related CN2153793Y (en) | 1992-09-12 | 1992-09-12 | Tyre inner tube pressure indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2153793Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912645A (en) * | 2010-07-28 | 2010-12-15 | 崔浩 | Pneumatic device for intravenous infusion |
-
1992
- 1992-09-12 CN CN 92233458 patent/CN2153793Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912645A (en) * | 2010-07-28 | 2010-12-15 | 崔浩 | Pneumatic device for intravenous infusion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |