CN201687331U - Self-help opening-closing device of rear door of bus - Google Patents
Self-help opening-closing device of rear door of bus Download PDFInfo
- Publication number
- CN201687331U CN201687331U CN 201020178016 CN201020178016U CN201687331U CN 201687331 U CN201687331 U CN 201687331U CN 201020178016 CN201020178016 CN 201020178016 CN 201020178016 U CN201020178016 U CN 201020178016U CN 201687331 U CN201687331 U CN 201687331U
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- CN
- China
- Prior art keywords
- nand gate
- bus
- self
- back door
- normally closed
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- Expired - Fee Related
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Abstract
The utility model relates to a self-help opening-closing device of a rear door of a bus, comprising a speed monitoring device, a switch, a normally-closed contact control chip, a normally-closed contact and a nand gate, wherein the speed monitoring device is connected with the normally-closed contact control chip, and simultaneously is connected with the nand gate; the normally-closed contact control chip is connected with the normally-closed contact; one end of the normally-closed contact is connected with the switch, and the other end thereof is connected with the nand gate; and the nand gate is connected with an opening-closing control system of the rear door. The self-help opening-closing device achieves the effect that a passenger opens and closes the door independently by being added with the self-help opening-closing door system at the opening-closing control system of the rear door of the bus, greatly reduces the load of a driver and simultaneously effectively avoids the problem that the passenger misses the time of getting off.
Description
One, technical field:
The utility model relates to the self-service switching device in a kind of bus back door.
Two, background technology:
When taking bus, the opening and closing of the front and back door of bus all are to be controlled by the driver.When bus arrival, the driver then needs the manually opening and closing of control front and back door.This has increased driver's workload greatly, because maloperation or environment are noisy, can occur closing the door too early sometimes, and the passenger misses the generation of problems such as time getting off, has caused unnecessary trouble.Up to the present, do not find equipment as yet about the self-service switching device in bus back door.
Three, utility model content:
The purpose of this utility model is in order to solve above-mentioned not enough problem, a kind of convenient and practical self-service switching device in bus back door to be provided, and this device can alleviate driver's workload, and can effectively avoid the passenger to miss the problem of time getting off.
The technical scheme that the utility model is adopted for achieving the above object is: the self-service switching device in bus back door comprises device for monitoring speed, switch, normally closed interlock control chip, normally closed type contact and NAND gate; Described device for monitoring speed links to each other with the normally closed interlock control chip; Device for monitoring speed is connected with NAND gate simultaneously; The normally closed interlock control chip links to each other with the normally closed type contact; Normally closed type contact one end links to each other with switch, and the other end is connected with NAND gate; Described NAND gate is connected with bus back door on-off control system.
Described device for monitoring speed is exported the signal of telecommunication when the speed of a motor vehicle is lower than 0.5m/s be 0.
Place, described bus back door can be provided with button, and described button is connected with driver's control panel signal lamp.
Good effect of the present utility model is: the utility model utilization adds self-service door opening and closing system at on-off control system place, state car back door, reaches the effect of the self-service switch door of passenger.Alleviate driver's burden greatly, also effectively avoided the passenger to miss the problem of time getting off simultaneously.
Four, description of drawings:
Fig. 1 is operating principle of the present utility model and syndeton schematic diagram.
Among the figure, 1-device for monitoring speed, 2-switch, 3-normally closed interlock control chip, 4-normally closed type contact, 5-NAND gate, 6-back door on-off control system.
Five, the specific embodiment:
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 1, the self-service switching device in the utility model bus back door mainly comprises device for monitoring speed 1, switch 2, normally closed interlock control chip 3, normally closed type contact 4 and NAND gate 5; Described device for monitoring speed 1 links to each other with normally closed interlock control chip 3; Device for monitoring speed 1 is connected with NAND gate 5 simultaneously; Normally closed interlock control chip 3 links to each other with normally closed type contact 4; Normally closed type contact 4 one ends link to each other with switch 2, and the other end is connected with NAND gate 5; Described NAND gate 5 is connected with bus back door on-off control system 6.Wherein, to export the signal of telecommunication when the speed of a motor vehicle is lower than 0.5m/s be 0 to device for monitoring speed.Place, bus back door can be provided with button, and described button is connected with driver's control panel signal lamp.
After bus reached a certain platform parking, when the speed of a motor vehicle was lower than 0.5m/s, the output signal of telecommunication of device for monitoring speed 1 was 0, and promptly NAND gate 5 input electrical signal is 0.Simultaneously, the input and output signal of telecommunication of normally closed interlock control chip 3 also is 0, and normally closed type contact 4 is failure to actuate.If someone gets off, after pressing near the switch 2 that is installed on the back door, this circuit is connected, at this moment, another input electrical signal of NAND gate 5 is 1, is 1 thereby make the signal of telecommunication of the output of NAND gate 5, this signal of telecommunication acts on the bus back door on-off control system 6, and its control back door is opened.
After the passenger pressed switch 2, switch 2 promptly was returned to opening.At this moment two of NAND gate 5 input electrical signals all are 0, and its output also is 0, and bus back door on-off control system 6 is vacant seat not, and the back door is held open state.
After the passenger got off, after the passenger clicked switch 2 again on the car, the output signal of telecommunication of NAND gate 5 became 1 again, and this signal of telecommunication acts on the bus back door switching system 6, its control back door is moved once more close.
After bus running gets up, the output signal of telecommunication of device for monitoring speed 1 is 1, an input electrical signal of NAND gate 5 is 1, the input of normally closed interlock control chip 3 all is 1 with the output signal of telecommunication, thereby normally closed interlock 4 actions, circuit is disconnected, and another input electrical signal of NAND gate 5 is 0, the signal of telecommunication of NAND gate 5 output 1 act on the back door on-off control system that on 6, make its action, at this moment, if the back door is not closed, then the back door is closed, if this moment, the back door was closed, bus back door on-off control system 6 output action signal not then.
Claims (3)
1. the self-service switching device in bus back door is characterized in that: comprise device for monitoring speed, switch, normally closed interlock control chip, normally closed type contact and NAND gate; Described device for monitoring speed links to each other with the normally closed interlock control chip; Device for monitoring speed is connected with NAND gate simultaneously; The normally closed interlock control chip links to each other with the normally closed type contact; Normally closed type contact one end links to each other with switch, and the other end is connected with NAND gate; Described NAND gate is connected with bus back door on-off control system.
2. the self-service switching device in bus according to claim 1 back door is characterized in that: described device for monitoring speed is exported the signal of telecommunication when the speed of a motor vehicle is lower than 0.5m/s be 0.
3. the self-service switching device in bus according to claim 1 back door is characterized in that: place, bus back door is provided with button, and described button is connected with driver's control panel signal lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020178016 CN201687331U (en) | 2010-04-30 | 2010-04-30 | Self-help opening-closing device of rear door of bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020178016 CN201687331U (en) | 2010-04-30 | 2010-04-30 | Self-help opening-closing device of rear door of bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687331U true CN201687331U (en) | 2010-12-29 |
Family
ID=43375615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020178016 Expired - Fee Related CN201687331U (en) | 2010-04-30 | 2010-04-30 | Self-help opening-closing device of rear door of bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519075A (en) * | 2017-09-18 | 2019-03-26 | 郑州宇通客车股份有限公司 | A kind of city bus Passenger door system and method |
-
2010
- 2010-04-30 CN CN 201020178016 patent/CN201687331U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519075A (en) * | 2017-09-18 | 2019-03-26 | 郑州宇通客车股份有限公司 | A kind of city bus Passenger door system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20110430 |