CN201553217U - Automobile cab hydraulic reversing device - Google Patents
Automobile cab hydraulic reversing device Download PDFInfo
- Publication number
- CN201553217U CN201553217U CN2009202128517U CN200920212851U CN201553217U CN 201553217 U CN201553217 U CN 201553217U CN 2009202128517 U CN2009202128517 U CN 2009202128517U CN 200920212851 U CN200920212851 U CN 200920212851U CN 201553217 U CN201553217 U CN 201553217U
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- CN
- China
- Prior art keywords
- safe servo
- valve
- hole
- servo valve
- safe
- 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 automobile cab hydraulic reversing device equipped with a safety follow-up valve. The safety follow-up valve is connected between an upper cavity and a lower cavity of a piston cylinder. When in lift of an automobile cab, an automobile face can be opened so as to lead the safety follow-up valve to be closed, then hydraulic oil in the lower cavity pushes a piston rod to move upwards, and the cab is lifted upwards. When in descending of the automobile cab, the automobile face can be closed so as to lead the safety follow-up valve to be opened, then the hydraulic oil in the lower cavity passes the safety follow-up valve to enter the upper cavity, and the cab is lowered. During running of an automobile, the piston rod inside the hydraulic cylinder follows in motion through the safety follow-up valve during bumping motion of the cab, thereby functioning in buffering and keeping comfortableness of the automobile cab.
Description
Technical field
The utility model relates to a kind of automobile cab hydraulic pressure turn-over device, refers more particularly to a kind of automobile cab hydraulic pressure turn-over device that has safe servo valve.
Technical background
Automobile in the past is not owing to install safe servo valve, piston cylinder upper cavity and lower chamber are in not conducting state always, when automobile cab is realized lifting, as forget face before the automobile is opened, the face transmission device will can not be communicated with piston cavity up and down by safe servo valve before the automobile, the hydraulic oil of lower chamber will promote piston always and move up, the permanent like this piston/cylinder structure of just destroying easily; When automobile cab descends, because the non-compression of lower chamber hydraulic oil will stop automobile cab to continue to descend; When automobile pitches, owing to the hydraulic oil of upper cavity and lower chamber can not be changed, so automobile will be prevented from doing servo-actuated when jolting, the consequence that causes like this is, the cushion characteristic of automotive parts is relatively poor, and shorten service life, and traveling comfort and stability reduce.
The utility model content
The purpose of this utility model has provided a kind of automobile cab hydraulic pressure turn-over device that safe servo valve is installed.
In order to solve above-mentioned technical matters, the utility model provides a kind of automobile cab hydraulic pressure turn-over device, comprise: face, fuel tank, the first safe servo valve oil line pipe, the second safe servo valve oil line pipe before piston cylinder, piston rod, safe servo valve, rising oil line pipe, decline oil line pipe, change-over valve, oil pump, check valve, the automobile, wherein, described safe servo valve comprises safe servo-actuated valve body, safe servo valve Shaft assembly, spring.
Described spring one end is installed in left surface in the safe servo-actuated valve body, the other end is connected with safe servo valve assembly right flank, described safe servo-actuated valve body upper surface is provided with the A hole, the lower surface is provided with the B hole, left surface is provided with the C hole, described safe servo valve Shaft assembly comprises safe servo valve piece, safe servo-actuated valve shaft, and described safe servo-actuated valve shaft one end is connected on the center, the safe servo valve piece left side, and the other end passes safe servo-actuated valve body left surface through hole C hole and is connected with face before the automobile.
According to above-mentioned a kind of automobile cab hydraulic pressure turn-over device, wherein, described piston rod is arranged in the piston cylinder, and piston cylinder is divided into upper cavity and lower chamber.
According to above-mentioned automobile cab hydraulic pressure turn-over device, wherein, described first safe servo valve oil line pipe one end is arranged on the piston cylinder upper cavity casing wall and the conducting upper cavity, the other end is connected safe servo valve upper end hole A hole, described second safe servo valve oil line pipe one end is arranged on the piston cylinder lower chamber casing wall and the conducting lower chamber, and the other end is connected under the safe servo valve in the stomidium B hole.
According to above-mentioned automobile cab hydraulic pressure turn-over device, wherein, described safe servo valve piece is a box structure, safety servo valve piece is provided with a vertical conducting D hole, when described safe servo valve is in conducting state, A hole, D hole, C hole are in the consistency from top to bottom state, when described safe servo valve is in closed condition,, D hole and A hole, C hole be in the dislocation state.
Technique effect of the present utility model is: by safe servo valve is installed, when automobile cab when rising, safe servo valve cuts out, and bigger hoisting force can be provided.When automobile cab is descending, safe servo valve is opened, lower chamber hydraulic oil enters upper cavity by the safety servo valve, can allow automobile cab continue to drop to extreme lower position, when automobile is done servo-actuated, there is conversion in operator's compartment upper and lower cavity hydraulic oil always, and automotive parts is cushioned, and improves the service life of automobile cab hydraulic pressure turn-over device and the traveling comfort of operator's compartment.
Description of drawings
Fig. 1, be automobile cab hydraulic pressure turn-over device scheme drawing when change-over valve forwards hoisting position in the utility model;
Fig. 2, be automobile cab hydraulic pressure turn-over device scheme drawing when change-over valve forwards down raise-position to and puts in the utility model;
Fig. 3, be structural representation during safe servo valve opening in the utility model;
Fig. 4, be structural representation during safe servo valve opening in the utility model;
Fig. 5, be safe servo valve body structure scheme drawing in the utility model.
1, piston cylinder, 2, piston rod, 3, upper cavity, 4, lower chamber, 5, safe servo valve, 6, the rising oil line pipe, 7, decline oil line pipe, 8, change-over valve, 9, oil pump, 10, check valve, 11, face before the automobile, 12, fuel tank, 13, the first safe servo valve oil pipe, 14, the second safe servo valve oil pipe, 51, safe servo-actuated valve body, 52, safe servo valve axon assembly, 53, safe servo-actuated valve body piece, 54, safe servo valve axon, 55, spring, 56, the A hole, 57, the B hole, 58, C hole, 59, the D hole.
The specific embodiment
With reference to Fig. 1, Fig. 3, a kind of automobile cab hydraulic pressure turn-over device comprises piston cylinder 1, piston rod 2, rising oil line pipe 6, decline oil line pipe 7, change-over valve 8, oil pump 9, check valve 10, face 11 before the automobile, fuel tank 12, the first safe servo valve oil pipe 13, the second safe servo valve oil pipe 14, wherein, piston rod 2 is installed in the piston cylinder 1, piston cylinder is divided into upper cavity 3 and lower chamber 4, decline oil line pipe 7 is connected between piston cylinder 1 upper cavity 3 and the change-over valve 8, rising oil line pipe 6 is connected between piston cylinder 1 lower chamber 4 and the change-over valve 8, also be provided with check valve 10 in the described rising oil line pipe 6 midway location pipelines, described first safe servo valve oil pipe 13 1 ends are connected to piston cylinder upper cavity 3, the other end is connected with safe servo valve A hole 56, described second safe servo valve oil pipe 14 1 ends are connected to piston cylinder lower chamber 4, and the other end is connected with safe servo valve B hole 57.
With reference to Fig. 3, Fig. 5, safe servo-actuated valve body 51 comprises safe servo valve axon assembly 52, safe servo-actuated valve body 51, spring 55, wherein, safe servo-actuated valve body 51 upper surfaces are provided with A hole 56, the lower surface is provided with B hole 57, left surface is provided with C hole 58, safe servo valve axon assembly 52 comprises safe servo-actuated valve body piece 53, safe servo-actuated valve shaft 54, described safe servo-actuated valve shaft 54 1 ends are installed on the safe servo-actuated valve body piece 53 left surface centers, and the other end passes safe servo valve C hole 58 and is connected with face 11 before the automobile; Spring 55 1 ends are installed on the safe servo-actuated valve body 51 interior left surfaces, and the other end is connected on the safe servo-actuated valve body piece 53 right flank centers, and described safe servo valve axon assembly 52, spring 55 all place in the safe servo-actuated valve body 51.
With reference to Fig. 3, Fig. 4, Fig. 5, servo-actuated valve body piece 53 is a box structure, be provided with a through hole D hole 59 between its upper surface and the lower surface, when the safety servo valve is in conducting state, A hole 56, D hole 59, B hole 57 are in the consistency from top to bottom state, and when the safety servo valve was in closed condition, D hole 59 was in the dislocation state with A hole 56, B hole 57.
With reference to Fig. 1, Fig. 4, face 11 is opened before automobile, drives safe servo valve Shaft assembly 52 to left movement, and safe servo-actuated valve shaft 54 drives safe servo-actuated valve body piece 53 to left movement, safe servo valve 5 is in closed condition, open change-over valve 8, hydraulic oil enters rising oil line pipe 6 by change-over valve 8 under oil pump 9 effects, enter piston cylinder 1 lower chamber 4 by check valve 10 again, promote the piston rod upward movement, upper cavity 3 hydraulic oil enter change-over valve 8 by decline passway 7, enter fuel tank 12 then.
With reference to Fig. 2, Fig. 3, face 11 is closed before automobile, spring 55 is returned to virgin state, safe servo valve 5 is in opening, forward change-over valve 8 to lowering position, operator's compartment falls, and lower chamber 4 hydraulic oil enter into upper cavity 3 by slave safety valve 5, upper cavity 3 hydraulic oil enter into lower chamber 4 by slave safety valve 5, and hydraulic actuating cylinder 1 meeting pitches along with automobile and does servo-actuated.
Claims (5)
1. automobile cab hydraulic pressure turn-over device, comprise: face (11), fuel tank (12), the first safe servo valve oil line pipe (13), the second safe servo valve oil line pipe (14) before piston cylinder (1), piston rod (2), safe servo valve (5), rising oil line pipe (6), decline oil line pipe (7), change-over valve (8), oil pump (9), check valve (10), the automobile, it is characterized in that described safe servo valve (5) comprises safe servo-actuated valve body (51), safe servo valve Shaft assembly (52), spring (55).
2. according to the described a kind of automobile cab hydraulic pressure turn-over device of claim 1, it is characterized in that, described spring (55) one ends are installed in the interior left surface of safe servo-actuated valve body (51), the other end is connected with safe servo valve assembly (52) right flank, described safe servo-actuated valve body (51) upper surface is provided with A hole (56), the lower surface is provided with B hole (57), left surface is provided with C hole (58), described safe servo valve Shaft assembly (52) comprises safe servo valve piece (53), safe servo-actuated valve shaft (54), described safe servo-actuated valve shaft (54) one ends are connected on safe servo valve piece (53) center, the left side, and the other end passes safe servo-actuated valve body (51) left surface through hole C hole (58) and is connected with face (11) before the automobile.
3. according to the described a kind of automobile cab hydraulic pressure turn-over device of claim 1, it is characterized in that described piston rod (2) is arranged in the piston cylinder (1), piston cylinder (1) is divided into upper cavity (3) and lower chamber (4).
4. a kind of automobile cab hydraulic pressure turn-over device according to claim 1, it is characterized in that, described first safe servo valve oil line pipe (13) one ends are arranged on upper cavity (3) casing wall and conducting upper cavity (3), the other end is connected in the safe servo valve upper end hole A hole (56), described second safe servo valve oil line pipe (14) one ends are arranged on piston cylinder lower chamber (4) casing wall and conducting lower chamber (4), and the other end is connected under the safe servo valve in the stomidium B hole (57).
5. a kind of automobile cab hydraulic pressure turn-over device according to claim 1 is characterized in that described safe servo valve piece (53) is a box structure, and safety servo valve piece (53) is provided with a vertical conducting straight hole D hole (59).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202128517U CN201553217U (en) | 2009-12-10 | 2009-12-10 | Automobile cab hydraulic reversing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202128517U CN201553217U (en) | 2009-12-10 | 2009-12-10 | Automobile cab hydraulic reversing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201553217U true CN201553217U (en) | 2010-08-18 |
Family
ID=42612891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202128517U Expired - Fee Related CN201553217U (en) | 2009-12-10 | 2009-12-10 | Automobile cab hydraulic reversing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201553217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154164A (en) * | 2014-07-25 | 2014-11-19 | 安徽德鸿机件制造有限公司 | Damping oil cylinder for overturning of driving cabs of medium and heavy trucks |
| CN107255091A (en) * | 2017-08-16 | 2017-10-17 | 实用动力(中国)工业有限公司 | A kind of non-differential type truck cap overturning oil cylinder |
-
2009
- 2009-12-10 CN CN2009202128517U patent/CN201553217U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154164A (en) * | 2014-07-25 | 2014-11-19 | 安徽德鸿机件制造有限公司 | Damping oil cylinder for overturning of driving cabs of medium and heavy trucks |
| CN104154164B (en) * | 2014-07-25 | 2015-12-30 | 安徽德鸿机件制造有限公司 | A kind of damping oil cylinder for medium-heavy automobile driver's cab turnover |
| CN107255091A (en) * | 2017-08-16 | 2017-10-17 | 实用动力(中国)工业有限公司 | A kind of non-differential type truck cap overturning oil cylinder |
| CN107255091B (en) * | 2017-08-16 | 2019-01-04 | 实用动力(中国)工业有限公司 | A kind of non-differential type truck cap overturning oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20171210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |