CN2255376Y - Low-gas-pressure alarming device for tyre - Google Patents
Low-gas-pressure alarming device for tyre Download PDFInfo
- Publication number
- CN2255376Y CN2255376Y CN 96200582 CN96200582U CN2255376Y CN 2255376 Y CN2255376 Y CN 2255376Y CN 96200582 CN96200582 CN 96200582 CN 96200582 U CN96200582 U CN 96200582U CN 2255376 Y CN2255376 Y CN 2255376Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- angle
- spring
- hole
- ventilation flue
- 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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Abstract
The utility model relates to an air duct whose inner duct wall is in the shape of ladder. The small bore-diameter end is sealed, and an angular-shaped kerf is arranged in the hole length, and one side of the kerf is perpendicular to a hollow shaft; a sleeve is equipped in a middle ladder hole, and the sleeve is provided with the angular-shaped kerf; an annular tube with inner convex-edge porch is arranged in the sleeve, and a spring is arranged in the annular tube; one end of the spring is supported on the bottom of the sleeve, and one end is supported on a ventilate negative film, and the ventilate negative film is supported and pressed on the inner convex-edge porch of the annular tube by means of the spring force; the large-caliber end of the air duct is provided with a screw thread. The utility model is spiro-union on a tire valve, if the internal air pressure is reduced, this device leaks air and sends out sound, and a sound-controlling switch alarms the driver after receiving the sound.
Description
The utility model relates to tire infrabar warning device.
The tire of self-propelled vehicle, because a variety of causes, gas leakage always causes the tire internal gas pressure to reduce, even rapid light leak, this is very much dangerous to large-scale passenger on long-distance routes's lorry.As the trailer car of coal car back, a certain having a flat tire, chaufeur is not felt yet, and advances as still continuing, and the inner tube of a tyre all damages in addition and flies out, and rim also rolls bad road.Even can cause parts to damage, roll-over accident takes place in Control Failure.Therefore, people are intended to work out a kind of tyre inner pressure as long as send a kind of warning device of signal once reducing to a critical value, alarm chaufeur, the inflation that makes it or stop, or the repairing of stopping.Present tire infrabar warning device is generally connected the transmission circuit that can produce optical signal or acoustical signal by the air pressure sensing parts, and light that it sends or acoustical signal receive the back by receptor and produce alerting signal.The introducing of transmission circuit makes system complex, can bring volume to increase a series of problems such as power supply outfit.
The purpose of this utility model is to improve the shortcoming of prior art and provides a kind of simple, and reliable and economic tire infrabar warning device is equipped with the general-duty audio-switch and connects warning indicator lamp circuit or acoustics circuit, to remind chaufeur.
The purpose of this utility model is to realize like this, it is that an inner tubal wall becomes stair-stepping ventilation flue, its little internal diameter end sealing, within little inner diameter hole is long, an angular incisions is arranged, the one side of otch is vertical with tubular axis, and with at the bottom of the hole of middle stepped hole at a distance of the 0.6-1.2 millimeter, the angle of cut sides is 52 °-56 °, the top, angle of the angle that the two sides constituted and ventilation flue's axes intersect; Sleeve at the bottom of the band of packing into its force fit is arranged in middle stepped hole, an angular incisions is arranged on the sleeve, the one side of otch is vertical with quill shaft and by the sleeve inner bottom surface, the angle of cut sides is 52 °-56 °, the top, angle of the angle that two cut sides are constituted and the axes intersect of sleeve; An end that has a force fit to pack in described sleeve has the sleeve pipe on inner raised edge edge, a spring is arranged in the sleeve pipe, one end bearing of spring is on the end of above-mentioned sleeve, and the other end is bearing on the ventilative egative film, and breathable backsheet leans on the spring force roof pressure on the inner raised edge edge of sleeve pipe; Stepped ventilation flue's heavy caliber end has the screw thread that is complementary with the automobile tyre valve nozzle, so that it is screwed onto with the automobile tyre valve nozzle.
The using method of this sounding alarm device is as follows, and it is screwed onto on the valve nozzle of automobile tyre, and the push rod of valve nozzle presses closer on the breathable backsheet that supports by spring force in this device, the tire internal gas pressure is enough big, length of spring compressed, this moment, valve nozzle was in sealing state, and is air tight.When the tire internal gas pressure is low to moderate specified value when following because of a variety of causes, compression spring will advance valve nozzle to the push rod of valve nozzle, the interior gas of tire this moment comes out along the pusher table surface current, will produce the aud. snl. of certain frequency scope behind the otch aperture by the ventilation flue, make the audio-switch closure that is installed on the under-carriage, connect warning indicator lamp circuit or acoustics circuit, remind chaufeur.
The utility model is simple in structure, volume is little, easy for installation, dependable performance.
Details are as follows by accompanying drawing to quote embodiment below.
Fig. 1 the utility model front view
The right elevation of Fig. 2 Fig. 1
Fig. 3 the utility model and tire valve mounting structure figure
Fig. 4 circuit diagram
Embodiment
Chew ventilation flue 2 of installation on 1 at tire valve, described ventilation flue is that an inner tubal wall becomes stair-stepping pipe, its little internal diameter end has a sealing to stop up 3, within small-diameter hole is long, an otch 4 is arranged, one end face of otch is vertical with tubular axis, and with at the bottom of the hole of middle stepped hole 5 at a distance of 0.7 millimeter, the angle of cut sides is 54 °, the top, angle of the angle that the two sides became and ventilation flue's axes intersect; A sleeve with holes 6 of packing into its force fit is arranged in middle stepped hole, a kerf 7 is arranged on the sleeve, one end face of otch is vertical with quill shaft and by tube inner bottom surface 8, the angle of cut sides is 55 °, the top, angle of the angle that two cut sides are constituted and the axes intersect of sleeve; An end that has a force fit to pack in described sleeve has the sleeve pipe 9 on inner raised edge edge, a spring 10 is arranged in the sleeve pipe, one end bearing of this spring is on the end of above-mentioned sleeve, the other end is bearing on the ventilative egative film 11, and breathable backsheet by the spring force roof pressure in the inner raised edge of sleeve pipe along on the 9-1, breathable backsheet is a disk, has three uniform annular slotted hole 11-1 on it, and stepped hole heavy caliber end has the screw thread that is complementary with the automobile tyre valve nozzle in the ventilation flue.
During use, this device is screwed on the valve nozzle 1 of tire, the push rod 12 of valve nozzle presses closer on the breathable backsheet that supports by spring force in this device, the tire internal gas pressure is enough big, spring is compressed, push rod in the valve nozzle and 14 sealings of platform tapered sleeve tube 13 usefulness packing seals, and valve nozzle is air tight; When tire internal cause a variety of causes air pressure is lower than specified value when following, compression spring will advance valve nozzle to the push rod in the valve nozzle, at this moment, push rod separates with platform tapered sleeve tube, gas is along the overcoat 15 of valve nozzle in the tire, opening through push rod and platform tapered sleeve tube, along push rod and platform tapered sleeve tube, the circuit of 16 structures of hold-down nut flows out by ventilation flue's otch, send the acoustical signal of certain frequency, be installed near audio-switch 17 closures the tire on the under-carriage, connection is installed in the indicator lamp 18 in the operator's compartment, reminds chaufeur, and the power supply 19 in the circuit can be power autonomous with automobile.
Claims (1)
1, a kind of tire infrabar warning device, it is characterized in that, it is that an inner tubal wall becomes stair-stepping ventilation flue, its little internal diameter end sealing, within little inner diameter hole is long an angular incisions is arranged, the one side of otch is vertical with tubular axis, and with at the bottom of the hole of middle stepped hole at a distance of the 0.6-1.2 millimeter, the angle of cut sides is 52 °-56 °, the top, angle of the angle that the two sides constituted and ventilation flue's axes intersect; Sleeve at the bottom of the band of packing into its force fit is arranged in middle stepped hole, an angular incisions is arranged on the sleeve, the one side of otch is vertical with quill shaft and by the sleeve inner bottom surface, the angle of cut sides is 52 °-56 °, the top, angle of the angle that two cut sides are constituted and the axes intersect of sleeve; An end that has a force fit to pack in described sleeve has the sleeve pipe on inner raised edge edge, a spring is arranged in the sleeve pipe, one end bearing of spring is on the end of above-mentioned sleeve, and the other end is bearing on the ventilative egative film, and breathable backsheet leans on the spring force roof pressure on the inner raised edge edge of sleeve pipe; Stepped ventilation flue's heavy caliber end has screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200582 CN2255376Y (en) | 1996-01-19 | 1996-01-19 | Low-gas-pressure alarming device for tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200582 CN2255376Y (en) | 1996-01-19 | 1996-01-19 | Low-gas-pressure alarming device for tyre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2255376Y true CN2255376Y (en) | 1997-06-04 |
Family
ID=33887110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96200582 Expired - Fee Related CN2255376Y (en) | 1996-01-19 | 1996-01-19 | Low-gas-pressure alarming device for tyre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2255376Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1891509B (en) * | 2004-12-03 | 2010-10-27 | 固特异轮胎和橡胶公司 | Method for detection of low leak rates in a tire |
-
1996
- 1996-01-19 CN CN 96200582 patent/CN2255376Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1891509B (en) * | 2004-12-03 | 2010-10-27 | 固特异轮胎和橡胶公司 | Method for detection of low leak rates in a tire |
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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 |