CN201428661Y - Controllable dump hydraulic cylinder of automobile spare tire - Google Patents
Controllable dump hydraulic cylinder of automobile spare tire Download PDFInfo
- Publication number
- CN201428661Y CN201428661Y CN 200920166638 CN200920166638U CN201428661Y CN 201428661 Y CN201428661 Y CN 201428661Y CN 200920166638 CN200920166638 CN 200920166638 CN 200920166638 U CN200920166638 U CN 200920166638U CN 201428661 Y CN201428661 Y CN 201428661Y
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- CN
- China
- Prior art keywords
- cylinder bottom
- cylinder
- oil
- hydraulic
- check valve
- 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 - Lifetime
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- Vehicle Body Suspensions (AREA)
Abstract
The utility model relates to a controllable dump hydraulic cylinder of automobile spare tire, which comprises a cylinder bottom, a piston rod, a cylinder, an ear ring, a guiding sleeve and an oil pipe, and is characterized in that a hydraulic control one-way valve is installed inside the cylinder bottom, the hydraulic control one-way valve comprises a valve core, a valve core offsetting spring, alimit sleeve, a steel ball and a steel ball offsetting spring, wherein the valve core control end of the hydraulic control one-way valve corresponds to an oil inlet hole of an oil inlet joint of the cylinder bottom, a liquid inlet of the hydraulic control one-way valve is communicated with a cavity with rod of the hydraulic cylinder through an oil way hole and an oil pipe, and the liquid outlet ofthe hydraulic control one-way valve is communicated with the oil outlet joint of the cylinder bottom through the oil return hole of the cylinder bottom. The cylinder has the advantages that the dampof the spare tire can be controlled, the dropping of the spare tire can stop at any time during the dump process, namely the cylinder has the midway-stopping function, simultaneously the pressure inside the pump body of a hand-operated hydraulic oil pump can be reduced, and the service life of the hand-operated hydraulic pump is prolonged.
Description
Technical field:
The utility model relates to the controlled hydraulic jack of tumbling of a kind of automobile spare tire, and particularly a kind of heavy truck spare tyre is tumbled to the controlled hydraulic oil cylinder on ground from vehicle frame, belongs to the hydraulic machinery technical field.
Technical background:
The spare tyre system of tumbling is by tiltable frame, and hydraulic jack, manual hydraulic oil pump are formed.Hydraulic system can be converted to mechanical energy by hydraulic pressure that manual hydraulic oil pump produces, and realizes that hydraulic cylinder piston rod carries out straight line motion.When existing hydraulic jack was worked, spare tyre carried out total travel to stop function in the nothing, the uncontrollable potential safety hazard that occurs easily of the whole process of tumbling from turning over.And the hydraulic jack total travel is from turning over, and the rod chamber dredge oil amount is bigger, causes in the pump housing oil mass moment to increase, and occurs pump housing cracking easily, the phenomenon of sealing gasket pressure break.Making a concrete analysis of its working procedure is: when spare tyre when turning over, hydraulic jack rod chamber fluid directly is back to manual hydraulic oil pump pump housing inside from the delivery connection of hydraulic jack cylinder bottom after the throttle valve current limliting; This moment, the hydraulic jack rodless cavity produced negative pressure, and two one-way valves and 80 order oil purifiers that negative pressure need be opened in throttle valve, the manual hydraulic oil pump could be drawn to rodless cavity with fluid.All get back to the manual hydraulic oil pump cavity at short notice owing to turn over the rod chamber inner fluid under the spare tyre, and rodless cavity oil return speed this moment obviously lags behind, a large amount of fluid accumulate in the manual hydraulic oil pump pump housing, pump housing internal pressure is excessive cause sealing gasket extruded by oil pressure or the pump housing by the phenomenon of pressure break.In order to address the above problem, to be badly in need of a kind of controlled hydraulic oil cylinder and to control the spare tyre process of tumbling.
Summary of the invention:
The purpose of this utility model provides a kind of can tumbling to spare tyre carries out controllable operating, spare tyre and can stop at any time descending in the process of tumbling (stopping function in having), can reduce manual hydraulic oil pump pump housing internal pressure simultaneously, prolong the manual hydraulic oil pump controlled hydraulic jack of tumbling of automobile spare tire in working life.
The purpose of this utility model is realized by following technological scheme:
The utility model comprises cylinder bottom, piston rod, cylinder barrel, earrings, guide sleeve, oil pipe, it is characterized in that: Pilot operated check valve is installed in cylinder bottom inside, Pilot operated check valve comprises spool, valve core reseting spring, stop collar, steel ball, steel ball Returnning spring, the spool control end of Pilot operated check valve is facing to the oil inlet hole of the fuel inlet fitting of cylinder bottom, the liquid entering hole of Pilot operated check valve is communicated with the hydraulic jack rod chamber by oil circuit hole, the oil pipe in the cylinder bottom, and the liquid outlet of Pilot operated check valve is communicated with the delivery connection of cylinder bottom by the spill port of cylinder bottom.
The utility model has the advantages that: can tumble to spare tyre and carry out controllable operating, spare tyre and in the process of tumbling, can stop at any time descending (stopping function in having), can reduce manual hydraulic oil pump pump housing internal pressure simultaneously, prolong manual hydraulic oil pump working life.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1---A is to sectional view;
Fig. 3 is the I portion enlarged view of Fig. 2, that is: the structural representation of Pilot operated check valve.
Specific embodiments:
With reference to accompanying drawing, the utility model comprises cylinder bottom 1, piston rod 2, cylinder barrel 3, earrings 4, guide sleeve 5, oil pipe 6, in cylinder bottom 1 inside Pilot operated check valve is installed, Pilot operated check valve adopts the pattern in the heavy automobile cab dump cylinder, comprise spool 11, valve core reseting spring 12, stop collar 16, steel ball 15, steel ball Returnning spring 14, spool 11 control ends of Pilot operated check valve are facing to the oil inlet hole 10 of the fuel inlet fitting 7 of cylinder bottom 1, the oil inlet hole 10 of fuel inlet fitting is communicated with rodless cavity, the liquid entering hole 13 of Pilot operated check valve is by the oil circuit hole 9 in the cylinder bottom, oil pipe 6 is communicated with the hydraulic jack rod chamber, and the liquid outlet 17 of Pilot operated check valve is communicated with the delivery connection 8 of cylinder bottom by the spill port of cylinder bottom.The hydraulic jack of the present utility model fuel inlet fitting of its cylinder bottom in use is connected with manual hydraulic oil pump with delivery connection, when manual hydraulic oil pump is suppressed, hydraulic oil flows into the hydraulic jack rodless cavity by the oil inlet hole of fuel inlet fitting, the promotion piston rod stretches out, make that spare tyre begins to tumble, oil pressure promotes the fluid-control one-way valve core and backs down steel ball simultaneously, hydraulic jack rod chamber fluid enters the liquid entering hole of Pilot operated check valve by oil pipe, oilhole, and liquid outlet, the delivery connection through Pilot operated check valve is back to manual hydraulic oil pump again.When manual hydraulic oil pump stopped to suppress, spool was pushed up to original position by valve core reseting spring, and steel ball is pushed up to sealing station recovery sealing function by the steel ball Returnning spring, and the interior hydraulic oil of rod chamber this moment can not flow back into hydraulic-pressure pump, and spare tyre stops to tumble.By said process, when manual hydraulic oil pump is suppressed one by one, the action of tumbling one by one of hydraulic jack control spare tyre, realization controllable function.
Claims (1)
1, the controlled hydraulic jack of tumbling of a kind of automobile spare tire comprises cylinder bottom, piston rod, cylinder barrel, earrings, guide sleeve, oil pipe, it is characterized in that: Pilot operated check valve is installed in cylinder bottom inside, Pilot operated check valve comprises spool, valve core reseting spring, stop collar, steel ball, steel ball Returnning spring, the spool control end of Pilot operated check valve is facing to the oil inlet hole of the fuel inlet fitting of cylinder bottom, the liquid entering hole of Pilot operated check valve is communicated with the hydraulic jack rod chamber by oil circuit hole, the oil pipe in the cylinder bottom, and the liquid outlet of Pilot operated check valve is communicated with the delivery connection of cylinder bottom by the spill port of cylinder bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920166638 CN201428661Y (en) | 2009-07-08 | 2009-07-08 | Controllable dump hydraulic cylinder of automobile spare tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920166638 CN201428661Y (en) | 2009-07-08 | 2009-07-08 | Controllable dump hydraulic cylinder of automobile spare tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201428661Y true CN201428661Y (en) | 2010-03-24 |
Family
ID=42032398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920166638 Expired - Lifetime CN201428661Y (en) | 2009-07-08 | 2009-07-08 | Controllable dump hydraulic cylinder of automobile spare tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201428661Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU221044U1 (en) * | 2023-09-01 | 2023-10-16 | Общество с ограниченной ответственностью "ГИДРО-СТАР" | DOUBLE ACTING HYDRAULIC CYLINDER |
-
2009
- 2009-07-08 CN CN 200920166638 patent/CN201428661Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU221044U1 (en) * | 2023-09-01 | 2023-10-16 | Общество с ограниченной ответственностью "ГИДРО-СТАР" | DOUBLE ACTING HYDRAULIC CYLINDER |
| RU224941U1 (en) * | 2023-12-13 | 2024-04-09 | Общество с ограниченной ответственностью "ГИДРО-СТАР" | HYDRAULIC CYLINDER |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: INNER MONGOLIA YIJI GROUP HONGYUAN ELECTRIC APPLIA Free format text: FORMER OWNER: NEI MORGGOL NO. 1 MACHINERY MANUFACTURING (GROUP) CO., LTD. Effective date: 20150504 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 014032 BAOTOU, INNER MONGOLIA AUTONOMOUS REGION TO: 014030 BAOTOU, INNER MONGOLIA AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150504 Address after: Rare earth hi tech Zone Qinggong road Baotou City No. 5 the Inner Mongolia Autonomous Region 014030 Patentee after: INNER MONGOLIA FIRST MACHINERY GROUP HONGYUAN ELECTRICAL APPLIANCE CO., LTD. Address before: 014032 Baotou Qingshan District Inner Mongolia first machinery manufacturing (Group) Co., Ltd. (the Inner Mongolia Autonomous Region) Patentee before: Inner Mongolia First Machinery Group Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100324 |