CN2717737Y - Signalling device for pressure of vehicle tyre - Google Patents
Signalling device for pressure of vehicle tyre Download PDFInfo
- Publication number
- CN2717737Y CN2717737Y CN 200420016485 CN200420016485U CN2717737Y CN 2717737 Y CN2717737 Y CN 2717737Y CN 200420016485 CN200420016485 CN 200420016485 CN 200420016485 U CN200420016485 U CN 200420016485U CN 2717737 Y CN2717737 Y CN 2717737Y
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- CN
- China
- Prior art keywords
- air pressure
- tire
- cylinder barrel
- piston
- spring
- 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 discloses a signalling device for pressure of vehicle tyre, which comprises a tyre pressure sensing and signal emitting device and a signal receiving alarm device. The tyre pressure sensing and signal emitting device comprises a shell. A tire pressure sensing component and a signal emitting circuit controlled by the tire pressure sensing component are arranged in the shell. The tire pressure sensing component comprises a cylinder with an inner screw, and the cylinder is fixed in the shell and the end of the cylinder extends out of the shell. A piston is arranged in the cylinder, and a spring is provided between the piston and the cylinder bottom. The position on the cylinder which is at the lower of the piston is provided with a bore. A binding post is arranged in a sealing way in the bore. The cylinder bottom is provided with a bore, and a conducting wire fixed with the spring end extends out of the bore. The air pressure sensing component of the vehicle tyre pressure alarm has simple structure, the entire device is easy to install and use, and the sensing component just needs to be screwed to the valve of tyre. The vehicle tyre pressure alarm has the advantages of simple structure, reliable operation and low cost.
Description
Technical field
The utility model relates to a kind of warning device, is specially the air pressure of automobile tire warning device.
Background technology
Existing air pressure of automobile tire warning device generally includes air pressure sensing parts, the signal transmission circuit by the air pressure sensing unit control, signal receiving circuit harmony or optical alarm circuit.The inside of motor tire need be installed, be fixed on to the air pressure sensing parts of existing air pressure of automobile tire warning device, makes troubles for the use of warning device.Simultaneously, the structure more complicated of air pressure sensing parts, cost is higher, makes the cost of whole warning device higher, has limited it and has applied on a large scale.
Summary of the invention
The utility model provides a kind of air pressure of automobile tire warning device with new structure at existing air pressure of automobile tire warning device structure is complicated, cost is high, install and use inconvenient problem.
The utility model is to adopt following technical scheme to realize: the air pressure of automobile tire warning device, comprise tire air pressure sensor and sender unit and contain signal receiving circuit with it, the signal of warning circuit receives warning device, tire air pressure sensor and sender unit comprise housing, be provided with tire air pressure sensor parts and the signal transmission circuit that is subjected to the tire air pressure sensor unit control in the housing, the tire air pressure sensor parts comprise the end of being fixed in the housing and having a negative thread and stretch out the outer cylinder barrel of housing, be provided with piston in the cylinder barrel, be provided with spring between piston and the cylinder barrel bottom, on the position that is positioned at the piston bottom on the cylinder barrel, have the hole, sealing is provided with binding post in the hole, the bottom of cylinder barrel has the hole, draws in this hole with the lead that spring end is fixing.The lead of drawing from the cylinder barrel bottom reaches and binding post bonded assembly lead, is serially connected in the current supply circuit of signal transmission circuit.During use, the first exhaust nozzle of on tire valve, screwing on, the cylinder barrel end in tire air pressure sensor and the sender unit is screwed on the exhaust nozzle by screw thread, the air pressure against the force of the spring in the tire upwards pushes up piston (metal is made) again, makes piston and binding post keep contactless state; When tire pressure drops to a certain critical value, air pressure is not enough to piston jack-up, piston moves down with binding post under action of the spring and contacts, make the current supply circuit of the signal transmission circuit in the housing connect and transmit, signal receive warning device (being fixed in the operator's compartment) receive this transmit and by warning circuit carry out sound, light is reported to the police, and makes chaufeur know which tire goes wrong.
Related signal transmission circuit, signal receiving circuit and the warning circuit of the utility model is that the electricity field technical personnel need not the technology contents that creative work can be realized, multiple alternative signal emission and signal receiving chip are particularly arranged at present, select common known signal to transmit and receive chip and can easily make up signal and transmit and receive circuit; Warning circuit will realization sound, light is reported to the police available light-emitting diode or known sound chip, and this technical personnel to electricity field also is to realize and need not creative work easily.Signal transmission circuit, signal receiving circuit and warning circuit can easily have multiple structural distortion.The utility model has provided a kind of physical circuit schematic diagram of transmission circuit, reception and warning circuit in the accompanying drawings.
Air pressure of automobile tire warning device described in the utility model, its air pressure sensing block construction is simple, whole device installation, easy to use, only need be screwed in sensing element on the tire valve and get final product.This air pressure of automobile tire warning device is simple in structure, reliable operation, and cost is low, is convenient to apply on automobile.Be specially adapted to large truck.
Description of drawings
Fig. 1 is the structural representation of the utility model tire air pressure sensor and sender unit;
Fig. 2 is the schematic circuit diagram of the utility model signal transmission circuit;
Fig. 3 receives the schematic circuit diagram of warning circuit for the utility model signal;
The specific embodiment
The air pressure of automobile tire warning device, comprise tire air pressure sensor and sender unit and contain signal receiving circuit with it, the signal of warning circuit receives warning device, tire air pressure sensor and sender unit comprise housing 1, be provided with tire air pressure sensor parts and the signal transmission circuit that is subjected to the tire air pressure sensor unit control in the housing, the tire air pressure sensor parts comprise the end of being fixed in the housing and having a negative thread and stretch out the outer cylinder barrel 2 of housing, be provided with piston 3 in the cylinder barrel, be provided with spring 4 between piston and the cylinder barrel bottom, on the position that is positioned at the piston bottom on the cylinder barrel, have the hole, sealing is provided with binding post 5 in the hole, the bottom of cylinder barrel has the hole, draws in this hole with the lead that spring end is fixing.Binding post can and add packing seal with hole screw thread fit on the cylinder barrel and realize sealing, and perhaps binding post is put into the hole and with glue binding post and hole sealed and realize sealing.
Be provided with the screw rod 6 that cooperates with the cylinder barrel bottom thread in cylinder barrel 2 bottoms, the lower end of screw rod is fixed with baffle plate 7.Adjusting screw(rod) can change the upper-lower position of baffle plate, with this deflection that changes spring, reaches the purpose of adjusting the warning device operation precision, and warning device is moved when tire pressure drops to different critical values.Under this structure, the drawing lead and can directly draw of cylinder barrel bottom from screw rod.Screw rod, baffle plate, spring and piston all are the conductors that metallic material is made.
On spring 4, be with spring protection cover 8.At tire pressure excessive or automobile heavily loaded under, the spring protection cover can prevent excessive deformation, the compression of spring, avoids the damage of long supercompression to spring, thereby further improves the functional reliability of warning device.
Signal transmission circuit is a core with signal transmitting chip IC1 (selecting 2260 models for use), at the peripheral attached peripheral circuit to be made of aerotron, diode, resistance, electric capacity of signal transmitting chip IC1.The contact switch (being labeled as S in circuit diagram) that piston and binding post constitute is serially connected with in the current supply circuit of transmission circuit.The transmission circuit that provides in the present embodiment is known and simple circuit configuration.
Receive warning circuit and comprise signal receiving chip IC2 (selecting the PT2272 model for use).(air pressure sensing and sender unit are installed on each tire of automobile according to different transmitting, the signal difference of each device emission), receiving chip has cooresponding mouth, each mouth links to each other with the base stage of an aerotron (BG1, BG2, BG3, BG4), the collecting electrode of each aerotron is connected with relay (J1, J2, J3, J4), and the open contact of each relay (J1-1, J2-1, J3-1, J4-1) is serially connected with the current supply circuit of light-emitting diode (D1, D2, D3, D4) respectively.When alerting signal is launched in a certain tire pressure decline, reception and warning device receive this signal, make the corresponding output end output high potential of the receiving chip in the acceptor circuit, make the aerotron conducting that is attached thereto, corresponding relays is charged, its open contact closure, corresponding light-emitting diode conducting is shinny.Chaufeur is shinny according to which light-emitting diode, and can judge is that fault has appearred in which tire.
Claims (3)
1, a kind of air pressure of automobile tire warning device, comprise tire air pressure sensor and sender unit and contain signal receiving circuit with it, the signal of warning circuit receives warning device, it is characterized by: tire air pressure sensor and sender unit comprise housing (1), be provided with tire air pressure sensor parts and the signal transmission circuit that is subjected to the tire air pressure sensor unit control in the housing, the tire air pressure sensor parts comprise the end of being fixed in the housing and having a negative thread and stretch out the outer cylinder barrel (2) of housing, be provided with piston (3) in the cylinder barrel, be provided with spring (4) between piston and the cylinder barrel bottom, on the position that is positioned at the piston bottom on the cylinder barrel, have the hole, sealing is provided with binding post (5) in the hole, the bottom of cylinder barrel has the hole, draws in this hole with the lead that spring end is fixing.
2, air pressure of automobile tire warning device as claimed in claim 1 is characterized by: be provided with the screw rod (6) that cooperates with the cylinder barrel bottom thread in cylinder barrel (2) bottom, the lower end of screw rod is fixed with baffle plate (7).
3, air pressure of automobile tire warning device as claimed in claim 1 or 2 is characterized by: be with spring protection cover (8) on spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016485 CN2717737Y (en) | 2004-07-31 | 2004-07-31 | Signalling device for pressure of vehicle tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016485 CN2717737Y (en) | 2004-07-31 | 2004-07-31 | Signalling device for pressure of vehicle tyre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2717737Y true CN2717737Y (en) | 2005-08-17 |
Family
ID=34892646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420016485 Expired - Fee Related CN2717737Y (en) | 2004-07-31 | 2004-07-31 | Signalling device for pressure of vehicle tyre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2717737Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991286A (en) * | 2012-08-13 | 2013-03-27 | 刘立文 | Tire explosion-proof device |
-
2004
- 2004-07-31 CN CN 200420016485 patent/CN2717737Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991286A (en) * | 2012-08-13 | 2013-03-27 | 刘立文 | Tire explosion-proof device |
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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 |