CN2649834Y - Hydraulic combined valve block and automobile hydraulic lifting tailboard oil source - Google Patents
Hydraulic combined valve block and automobile hydraulic lifting tailboard oil source Download PDFInfo
- Publication number
- CN2649834Y CN2649834Y CN 03241921 CN03241921U CN2649834Y CN 2649834 Y CN2649834 Y CN 2649834Y CN 03241921 CN03241921 CN 03241921 CN 03241921 U CN03241921 U CN 03241921U CN 2649834 Y CN2649834 Y CN 2649834Y
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- China
- Prior art keywords
- oil
- valve
- fuel tank
- hydraulic
- automobile
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Abstract
The utility model relates to improvement of an oil source system for vehicle hydraulic pressure lifting and falling tail plate, which includes oil source systems for new combined valve blocks and a tail plate. The new combined valve blocks includes a safe relief valve (1), one-way valves (0, 2), electromagnetic directional valves (3, 4), and oil outlet throttle check valves (5, 6), which are respectively arranged on the oil inlet and outlet A, and B, the parallel joint of which is connected with the electromagnetic directional valve (4). Another end of the parallel pipe line is provided with the safe relief valve (1). The one-way valves (0, 2) are respectively arranged on the safe relief valve (1) and the parallel pipe line. The electromagnetic directional valve (3) is provided in the middle of the parallel pipe line. Two entrances of overflow port T of an oil tank are respectively connected with the bottom of the electromagnetic directional valve (3) and the one-way valve (0). An oil inlet P which comes from an oil pump is connected into the one-way valves (0, 2). In addition, the utility model also provides the oil source system of a vehicle hydraulic pressure lifting and falling tail plate using the combined valve blocks.
Description
Technical field
The utility model belongs to the accessory in the goods vehicle, specifically the improvement of the oil supply system in the automobile hydraulic lift tailgate.
Technical background
The automobile that installs tailgate additional is quite extensive in the Europe and the America application of prosperity, is because the logistics transport service is comparatively flourishing on the one hand, the logistics ample supply and prompt delivery, and installing tailgate additional can raise the efficiency; Be because the labour force of developed country is comparatively expensive on the other hand, install tailgate additional and can reduce LOGISTICS COST.The automobile of producing now majority when dispatching from the factory is not equipped with tailgate as yet.Domestic infrastructure investment in recent years is larger, and road haulage is developed rapidly, and various professional transport vehicles once went out not poor, and it is essential that automobile installs the transportation of tailgate specialty additional.Installing tailgate additional mainly is to be finished by automobile remodeling factory or special purpose vehicle factory, and automobile installs the new highlight that tailgate is professional automobile market additional.
The automobile hydraulic lift tailgate is the vehicle-mounted hydraulic loading platform, mainly relies on vehicle power to drive the loading and unloading that hydraulic system realizes goods.Because this technology of application can make user vehicle not be subjected to the restriction in time place and even space to carry out goods and materials whenever and wherever possible and load and unload, save manpower, financial resources, thereby be used widely in developed country at present.It is the tailgate platform that the present Lifting tail gate that uses mainly is made up of three parts, cylinder system and hydraulic oil source system.Wherein the tailgate platform is as bearing goods; Cylinder system is as realizing the tailgate action, comprising overturning oil cylinder and elevating ram; The hydraulic oil source system is the control core and the power resources of Lifting tail gate.The most frequently used automobile tailgate square chest type oil sources is two valve pieces, and it is oil-proof that under high pressure its coupling part is difficult to assurance, and volume is bigger, and it is very inconvenient to install.
Summary of the invention
The utility model has redesigned the oil supply system of novel combination valve block and tailgate for overcoming deficiency of the prior art.Specifically, the novel hydraulic combination valve block of a kind of automobile in the hydraulic lifting tailgate oil supply system, be by safety overflow valve (1), one-way valve (0,2), solenoid directional control valve (3,4) and fuel-displaced one-way throttle valve (5,6) form, two fuel-displaced one-way throttle valves (5,6) be contained in the oil inlet and outlet A of system respectively, be connected to solenoid directional control valve (4) in B last and itself and the coupling head, this parallel connection joint pipeline the other end is equipped with safety overflow valve (1), one-way valve (0,2) be contained in respectively on safety overflow valve (1) and the joint pipeline in parallel, solenoid directional control valve (3) also is housed in the middle of this pipeline, two inlets of flow-off T that flow into fuel tank connect solenoid directional control valve (3) bottom and one-way valve (0) respectively, and the oil inlet P that enters from oil pump inserts one-way valve (0,2).
A kind of automobile hydraulic lifting tailgate oil sources, has fuel tank (31), be equipped with on the fuel tank and be used for locking device (316) that oil sources is connected with the automobile square chest, oil filler (315) and reflow pipe (33), direct current generator (34), oil pump (312) and combination valve block (35) are positioned at fuel tank (31) one sides, oil pump (312) is communicated with fuel tank by fuel sucking pipe (314), novel hydraulic combination valve block (35) is communicated with fuel tank by oil pipe, motor (34) and oil pump (312) direct connection are with hydraulic pressure combination valve block and starting contactor (310), ground pin (39) and handle (311) are fixed on the upper slide rest.
Hydraulic pressure combination valve block in the utility model is compared with old-fashioned square chest type oil sources, and outstanding feature is the problem that has thoroughly solved the leakage of oil of oil sources high pressure with the change of structure.This combination valve block has comprised the function of 7 valves altogether.And old-fashioned square chest type oil sources is two valve pieces, and under high pressure its coupling part is difficult to guarantee oil-proof.So it improves the product reputation for improving China automobile tailgate manufacturer, reduces maintenance cost and has brought direct benefit.
Tailgate oil sources in the utility model has taken into full account space problem from structure: with motor and oil pump direct connection, system elements such as hydraulic pressure combination valve block and starting contactor are fixed on the upper slide rest; profile is designed to drawer type; support in the square chest at the bottom of can all including car in; extract out when maintenance and oiling and get final product; also can be in the time of convenient the use to driven equipment and oil pump, hydrovalve plays a protective role.This kind structure is fairly obvious to the protection and the cleaning action of system.
Description of drawings
Fig. 1 is the schematic diagram of hydraulic pressure combination valve block in the utility model.
Fig. 2 is the structural representation of hydraulic pressure combination valve block in the utility model.
Fig. 3 is an automobile tailgate oil sources structural representation in the utility model.
Figure number explanation: 31-fuel tank, 32-sealing gasket, 33-reflow pipe, 34-direct current generator, 35-novel hydraulic combination valve block, 36-solenoid directional control valve 3,37-solenoid directional control valve 4,38-system oil inlet and outlet, 39-ground pin, 310-starting contactor, 311-handle, 312-oil pump, 313-motor clip, 314-fuel sucking pipe, 315-oil filler, 316-fuel tank locking device.
Fig. 4 is for installing automobile tailgate schematic diagram of movements of the present utility model.
Embodiment
The novel hydraulic combination valve block of a kind of automobile in the hydraulic lifting tailgate oil supply system, be by safety overflow valve (1), one-way valve (0,2), solenoid directional control valve (3,4) and fuel-displaced one-way throttle valve (5,6) form, two fuel-displaced one-way throttle valves (5,6) be contained in the oil inlet and outlet A of system respectively, be connected to solenoid directional control valve (4) in B last and itself and the coupling head, this parallel connection joint pipeline the other end is equipped with safety overflow valve (1), one-way valve (0,2) be contained in respectively on safety overflow valve (1) and the joint pipeline in parallel, solenoid directional control valve (3) also is housed in the middle of this pipeline, two inlets of flow-off T that flow into fuel tank connect solenoid directional control valve (3) bottom and one-way valve (0) respectively, and the oil inlet P that enters from oil pump inserts one-way valve (0,2).
Direct current generator started when 1. the power control switch button was connected, and drives oil pump hydraulic oil is pressed in the combination valve block; Selector valve 3 commutations when 3. the power control switch button is connected; Selector valve 4 commutations when 2. the power control switch button is connected.
Having three buttons in the operation-control switch is respectively: 1., 2., 3.
Motor, gear oil pump were started working when the electrical equipment connection required button 1. to connect; Valve 4 switching positions when 2. connecting; Valve 3 switching positions when 3. button is connected.By the lifting, the rotary movement that 1., 2., 3. have been combined to form shown in sample.
A). the action of opening the door:
2., 3. button is connected.Motor, gear air pump inoperative, valve 3 valves 4 are from the home position switching position.At this moment, hydraulic oil refluxes through system's oil outlet 1 and valve 3 from overturning oil cylinder under the tailgate action of gravity, from the flow-off oil sump tank, finishes the action of opening the door.
B). down maneuver:
3. button is connected.Motor, gear air pump inoperative, valve 3 is from the home position switching position.At this moment, hydraulic oil refluxes through system's oil outlet 2 and valve 3 from elevating ram under the tailgate action of gravity, from the flow-off oil sump tank, finishes down maneuver.
C). stir work down:
Principle is with opening the door action.
D). on stir work:
1., 2. button is connected.Motor, gear pump are started working, and valve 4 is from the home position switching position.At this moment, hydraulic oil is pressed in the overturning oil cylinder through system's oil outlet 1 from fuel tank under the pressure oil effect of gear pump output, and the promotion tailgate is finished and stirred work.
E). the lifting action:
1. button is connected.Motor, gear pump are started working.At this moment, hydraulic oil is pressed in the elevating ram through system's oil outlet 2 from fuel tank under the pressure oil effect of gear pump output, promotes tailgate and finishes the lifting action.
F). the action of closing the door:
The same work that stirs of principle.
G). the adjusting of falling speed:
When the needs tailgate fell, oil pump quit work, and hydraulic oil returns fuel tank by flow-off under the action of gravity of tailgate and goods, and the adjusting of its return speed is adjusted by throttle valve 5,6 (constant flow valve).Also just adjusted simultaneously the tailgate rate of descent.Old-fashioned oil sources no this item function.
H). the protection action during tailgate lifting overload:
When the tailgate lifting surpasses the goods of rated weight, because the pressure oil that gear pump continues enters combination valve block, but can not extrude from system's oil outlet 2, cause valve piece internal pressure constantly to raise, safety valve 1 is opened when surpassing 16MPA, and pressure oil is back in the fuel tank from safety valve 1.Played the effect of protective system.
I). the motor overload protection
Continuous operating time is long when system, and when the direct current generator inside temperature surpassed set point of temperature, hot signal can be sent in the system start-up device in the motor, motor can not be restarted, thereby protected motor to drop in the set point of temperature once more until temperature.Old-fashioned oil sources no this item function.
It is to be noted that above-mentioned listed function refers to that at cylinder system be formed action under the quadratic crank mechanism, if it is mechanical structure is done other variation, then just exportable and form other lifting, locomotive function by this oil sources.This also is that this cover oil supply system can be for a potential function of exploitation.
Utilize a kind of automobile hydraulic lifting tailgate oil sources of above-mentioned novel hydraulic combination brake switch and proporting design, it has fuel tank (31), be equipped with on the fuel tank and be used for locking device (316) that oil sources is connected with the automobile square chest, oiling (315) and reflow pipe (33), direct current generator (34), oil pump (312) and combination valve block (35) are positioned at fuel tank (31) one sides, oil pump (312) is communicated with fuel tank by fuel sucking pipe (314), novel hydraulic combination valve block (35) is communicated with fuel tank by oil pipe, motor (34) and oil pump (312) direct connection are with hydraulic pressure combination valve block and starting contactor (310), ground pin (39) and handle (311) are fixed on the upper slide rest.Because this oil sources profile is roughly drawer type, Far Left is a fuel tank, has locking device (signal) to be used for oil sources is connected with the automobile square chest on it.Be to the right direct current generator, oil pump, and combination valve block again.When operator's push button, hydraulic oil enters oil pump, combination valve block from fuel tank through fuel sucking pipe, enters cylinder system from system's oil inlet and outlet, and a road binders of two-way cylinder is from the return tube oil return.All power up all and carry out by starting contactor.
Claims (2)
1, the novel hydraulic combination valve block of a kind of automobile in the hydraulic lifting tailgate oil supply system, it is characterized in that by safety overflow valve (1), one-way valve (0,2), solenoid directional control valve (3,4) and fuel-displaced one-way throttle valve (5,6) form, two fuel-displaced one-way throttle valves (5,6) be contained in the oil inlet and outlet A of system respectively, be connected to solenoid directional control valve (4) in B last and itself and the coupling head, this parallel connection joint pipeline the other end is equipped with safety overflow valve (1), one-way valve (0,2) be contained in respectively on safety overflow valve (1) and the joint pipeline in parallel, solenoid directional control valve (3) also is housed in the middle of this pipeline, two inlets of flow-off T that flow into fuel tank connect solenoid directional control valve (3) bottom and one-way valve (0) respectively, and the oil inlet P that enters from oil pump inserts one-way valve (0,2).
2, a kind of automobile hydraulic lifting tailgate oil sources, it is characterized in that having fuel tank (31), be equipped with on the fuel tank and be used for locking device (316) that oil sources is connected with the automobile square chest, oil filler (315) and reflow pipe (33), direct current generator (34), oil pump (312) and combination valve block (35) are positioned at fuel tank (31) one sides, oil pump (312) is communicated with fuel tank by fuel sucking pipe (314), novel hydraulic combination valve block (35) is communicated with fuel tank by oil pipe, motor (34) and oil pump (312) direct connection are with hydraulic pressure combination valve block and starting contactor (310), ground pin (39) and handle (311) are fixed on the upper slide rest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03241921 CN2649834Y (en) | 2003-05-30 | 2003-05-30 | Hydraulic combined valve block and automobile hydraulic lifting tailboard oil source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03241921 CN2649834Y (en) | 2003-05-30 | 2003-05-30 | Hydraulic combined valve block and automobile hydraulic lifting tailboard oil source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649834Y true CN2649834Y (en) | 2004-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03241921 Expired - Fee Related CN2649834Y (en) | 2003-05-30 | 2003-05-30 | Hydraulic combined valve block and automobile hydraulic lifting tailboard oil source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649834Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541939A (en) * | 2013-09-11 | 2014-01-29 | 昆山新金福精密电子有限公司 | Improved hydraulic system of two-stage telescopic sleeve telescopic type double-acting hydraulic cylinder |
| CN104454750A (en) * | 2014-11-26 | 2015-03-25 | 上海华岛液压设备制造有限公司 | Electromagnetic combined directional valve |
| CN108533558A (en) * | 2018-06-29 | 2018-09-14 | 神华国华广投（柳州）发电有限责任公司 | A kind of wind turbine hydraulic station double overflow valve block transformation device |
-
2003
- 2003-05-30 CN CN 03241921 patent/CN2649834Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541939A (en) * | 2013-09-11 | 2014-01-29 | 昆山新金福精密电子有限公司 | Improved hydraulic system of two-stage telescopic sleeve telescopic type double-acting hydraulic cylinder |
| CN104454750A (en) * | 2014-11-26 | 2015-03-25 | 上海华岛液压设备制造有限公司 | Electromagnetic combined directional valve |
| CN108533558A (en) * | 2018-06-29 | 2018-09-14 | 神华国华广投（柳州）发电有限责任公司 | A kind of wind turbine hydraulic station double overflow valve block transformation 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 |