CN2303913Y - Vacuum door-opening-closing apparatus for midsize bus - Google Patents
Vacuum door-opening-closing apparatus for midsize bus Download PDFInfo
- Publication number
- CN2303913Y CN2303913Y CN97210210U CN97210210U CN2303913Y CN 2303913 Y CN2303913 Y CN 2303913Y CN 97210210 U CN97210210 U CN 97210210U CN 97210210 U CN97210210 U CN 97210210U CN 2303913 Y CN2303913 Y CN 2303913Y
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- CN
- China
- Prior art keywords
- vacuum
- cylinder
- hand
- direction valve
- operated direction
- 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 a door-opening-closing apparatus of a vehicle, comprising a vacuum cylinder, a hand-operated direction valve and a booster ram, wherein, one end of the hand-operated direction valve is connected with the vacuum cylinder. The other end is provided with two airflow channels which are respectively communicated with a front control and a back control of the booster ram. The vacuum cylinder is also provided with a frequent closed-type airflow channel. A simple structure can be implemented without changing anything of an original vehicle. The utility model is suitable for midsize buses of all kinds.
Description
The utility model relates to a kind of mechanism for opening/closing of arrangements for automotive doors.
The open and close of existing minibus car door must the professional be finished in the manually-operated of car door place, and promptly inconvenient, labour intensity is also big.For addressing this problem, people have done many improvement to it in recent years, as " the manual gear formula operating mechanism of switch mini-bus car door " of CN2225985 bulletin, " a kind of mini-bus doudle-leaf door operator " of CN2042427 bulletin, these improve all is improvement on the mechanism driving mode, and the vacuum-actuated power that produces when directly utilizing automobile engine work comes the door opening and closing mechanism of switch car door not see that as yet report is arranged.
The purpose of this utility model is to be the switch that makes things convenient for the minibus car door and laborsaving, and a kind of minibus vacuum switch door machine with the vacuum-actuated power that motor was produced on the automobile is provided.
The minibus vacuum switch door machine of realizing the utility model purpose is made of vacuum cylinder, hand-operated direction valve, servo-cylinder, wherein, one end and the vacuum cylinder of hand-operated direction valve join, the other end has two gas channels and communicates with the front/back cavity of servo-cylinder respectively, and described vacuum cylinder also is provided with a normally closed type one-way gas flow passage.
Operating principle of the present utility model is as follows: the normally closed one-way gas flow passage of vacuum cylinder and the vacuum source of automobile engine are joined, the piston rod and the car door of servo-cylinder are hinged, the vacuum that produces during engine operation is opened normally closed type one-way gas flow passage, thereby in vacuum cylinder, form and keep certain vacuum, by the operation hand-operated direction valve, make the front/back cavity of servo-cylinder form pressure reduction, piston produces motion under the effect of this pressure reduction, drive piston rod movement and finish the purpose of open and close car door.According to test, during the engine operation of minibus, its vacuum can reach-0.09Mpa, reference vacuum booster industry standard, the vacuum of the duty of vacuum booster is-0.0667Mpa, the vacuum that motor produced that is minibus can satisfy the vacuum servo cylinder working fully, finishes the action of open and close door.
The utility model has the advantages that simple in structurely, technology is easily gone, reliable operation, and fault rate is low.The hand-operated direction valve of its control door contact interrupter is visual to be easily installed in any position, as the long-distance car to open and close seldom, can be installed in certain position in face of the driver, is finished the switch of car door on the position of oneself by the driver.Must not do any change to former mechanism of car.Being suitable for various minibus installs and uses.
Below in conjunction with drawings and Examples the utility model is described further.
Fig. 1 structural representation of the present utility model
As shown in Figure 1, this minibus vacuum switch door machine is made of vacuum cylinder 3, hand-operated direction valve 4 and servo-cylinder 5, the piston rod 6 of servo-cylinder 5 joins with car door 8 by a hinge pin structure 7, hand-operated direction valve 4 can be selected existing center-leakage type hand-operated direction valve for use, the gas channel 9 usefulness pipes 10 of one end join with vacuum cylinder 3, and two gas channels 11,12 of the other end join with ante-chamber 15, the back cavity 16 of pipe 13,14 and servo-cylinder respectively.18 of the normally closed type gas channels of vacuum cylinder can be made of a normally closed type one way valve 2 simply, join by the air intake branch or the vacuum pump of a pipe 1 with automobile engine.To being equipped with the car of vacuum booster, also can connecing and use its vacuum source.Each parts can be installed in the shell 17.The vacuum action that produces during engine operation makes vacuum cylinder 3 possess certain vacuum in vacuum cylinder 3, at needs at closing time, hand-operated direction valve is placed station I, then the ante-chamber 15 of servo-cylinder forms vacuum, back cavity 16 is sent into atmosphere, pressure reduction between front/back cavity pushes away the servo-cylinder piston forward, and its piston rod 6 promotes car door 8 with closing of the door.Otherwise, hand-operated direction valve is placed station II, then reversal valve is connected the back cavity 16 of servo-cylinder, makes back cavity form vacuum, and ante-chamber advances atmosphere, makes piston rod toward post-tensioning, and car door 8 is opened.
Claims (1)
1, a kind of minibus vacuum switch door machine, it is characterized in that described gate operator is by vacuum cylinder, hand-operated direction valve, servo-cylinder is formed, wherein, one end and the vacuum cylinder of hand-operated direction valve join, the other end has two gas channels and communicates with the front/back cavity of servo-cylinder respectively, and described vacuum cylinder also is provided with a normally closed type one-way gas flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97210210U CN2303913Y (en) | 1997-04-29 | 1997-04-29 | Vacuum door-opening-closing apparatus for midsize bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97210210U CN2303913Y (en) | 1997-04-29 | 1997-04-29 | Vacuum door-opening-closing apparatus for midsize bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2303913Y true CN2303913Y (en) | 1999-01-13 |
Family
ID=33929199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97210210U Expired - Fee Related CN2303913Y (en) | 1997-04-29 | 1997-04-29 | Vacuum door-opening-closing apparatus for midsize bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2303913Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979395A (en) * | 2012-12-10 | 2013-03-20 | 合肥美的荣事达电冰箱有限公司 | Door opener and refrigerator with same |
-
1997
- 1997-04-29 CN CN97210210U patent/CN2303913Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979395A (en) * | 2012-12-10 | 2013-03-20 | 合肥美的荣事达电冰箱有限公司 | Door opener and refrigerator with same |
| CN102979395B (en) * | 2012-12-10 | 2015-12-23 | 合肥美的电冰箱有限公司 | Door opener and the refrigerator with it |
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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 |