CN205190432U - Hydraulic oil cylinder - Google Patents
Hydraulic oil cylinder Download PDFInfo
- Publication number
- CN205190432U CN205190432U CN201520942005.6U CN201520942005U CN205190432U CN 205190432 U CN205190432 U CN 205190432U CN 201520942005 U CN201520942005 U CN 201520942005U CN 205190432 U CN205190432 U CN 205190432U
- Authority
- CN
- China
- Prior art keywords
- control valve
- piston rod
- cylinder
- hydraulic jack
- cylinder barrel
- 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
Links
Abstract
The utility model relates to a hydraulic oil cylinder, including oil supply unit, cylinder and piston rod, the piston rod sets up along the axial direction of cylinder, and piston rod cylinder relatively removes, and oil supply unit communicates with the cylinder, and hydraulic oil cylinder still includes first control valve and second control valve, first, second control valve sets up and communicates at the cylinder both ends and with the cylinder is inside, oil supply unit communicates with first, second control valve respectively. The utility model discloses a hydraulic oil cylinder can make the piston rod can to stabilize at the assigned position through the control of first control valve and second to avoid the piston rod to produce vibrations or displacement, in addition, examine time measuring carrying out the solenoid valve, need not unpack apart the solenoid valve is whole to convenient quick maintaining and overhauing.
Description
Technical field
The utility model relates to a kind of hydraulic jack.
Background technique
Hydraulic energy is changed into mechanical energy, does the hydraulic actuator of straight reciprocating motion or oscillating motion by hydraulic jack.Its structure is simple, reliable operation.When realizing to-and-fro motion with it, can speed reducer be removed from, and there is no drive gap, stable movement, therefore be used widely in the hydraulic system of various machinery.The pressure reduction on hydraulic jack ouput force and piston effective area and both sides thereof is directly proportional; Hydraulic jack is made up of cylinder barrel and cylinder cap, piston and piston rod, seal arrangement, damping device and venting gas appliance substantially.The hydraulic oil control switch of the hydraulic jack of prior art is arranged on oil supplying device usually, thus causes after piston rod arrives specified position, even if closing switch, piston rod also can be subject to oil pressure, causes vibrations or the displacement of piston rod.In addition, the solenoid valve of existing hydraulic control oil cylinder is when overhauling, and need to take apart completely, Maintenance and Repair are more difficult, waste time and energy.
Model utility content
The utility model, in order to solve the problem of prior art, provides after one can make to prevent piston rod from arriving specified position and produces displacement, avoid the hydraulic jack that piston rod shakes.
Concrete technological scheme is as follows: a kind of hydraulic jack, comprise oil supplying device, cylinder barrel and piston rod, described piston rod is arranged along the axial direction of cylinder barrel, piston rod can move relative to cylinder barrel, and oil supplying device is communicated with cylinder barrel, and hydraulic jack also comprises the first control valve and the second control valve, first, second control valve described is arranged on cylinder barrel two ends and is communicated with cylinder barrel inside, and described oil supplying device is communicated with first, second control valve respectively.
It is below attached technological scheme of the present utility model.
Preferably, described first control valve and the second control valve are solenoid valve.
Preferably, described solenoid valve comprises body and valve head, and body is provided with hydraulic pressure oil duct.
Preferably, described hydraulic jack comprises detection device, and detection device comprises fixed plate, and fixed plate is provided with multiple through hole, and through hole is provided with oil circuit joint, and the hydraulic pressure oil duct of the corresponding solenoid valve of oil circuit joint is arranged.
Preferably, be bolted between described fixed plate and body.
Technique effect of the present utility model: hydraulic jack of the present utility model can control to make piston rod can stablize at specified position by the first control valve and second, thus avoids piston rod to produce vibrations or displacement; In addition, when carrying out solenoid valve and detecting, do not need solenoid valve all to take apart, thus carry out easily and fast safeguarding and overhauling.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the cylinder barrel of the utility model the present embodiment.
Fig. 2 is the schematic diagram of the hydraulic jack of the utility model the present embodiment.
Fig. 3 is the exploded view of the solenoid valve of the utility model the present embodiment.
Fig. 4 is the schematic diagram of the solenoid valve of the utility model the present embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figures 1 to 4, the hydraulic jack of the present embodiment comprises oil supplying device 1, cylinder barrel 2 and piston rod 3, and described piston rod 3 is arranged along the axial direction of cylinder barrel 2, and piston rod 3 can move relative to cylinder barrel 2, and oil supplying device 1 is communicated with cylinder barrel 2.Hydraulic jack also comprises the first control valve 11 and the second control valve 12, and first, second control valve 11,12 described is arranged on cylinder barrel 2 two ends and is communicated with cylinder barrel 2 inside, and described oil supplying device 1 is communicated with first, second control valve 11,12 respectively.In technique scheme, hydraulic oil in oil supplying device enters cylinder barrel 2 by passage 21 through the first control valve 11, thus promotes piston rod 3, after piston rod 3 arrives specified position, first, second control valve can be closed, thus makes piston rod 14 to be stabilized in specified position.Otherwise the hydraulic oil being flowed into cylinder barrel 2 by the second control valve 12 can make piston rod 3 shrink.
As shown in Figures 1 to 4, further, described first control valve 11 and the second control valve 12 are solenoid valve.Described hydraulic jack also comprises detection device 10, and detection device 10 comprises fixed plate 4, and fixed plate 4 is provided with multiple through hole 41.Described solenoid valve comprises body 20 and valve head 30, and body 20 is provided with hydraulic pressure oil duct 21.Through hole 41 is provided with oil circuit joint 42, the hydraulic pressure oil duct 21 on the body 20 of the corresponding solenoid valve of oil circuit joint 42.Valve head 30 is arranged on body 20, can arrange multiple valve head 30 in the present embodiment, thus corresponding different cylinder barrels.When needs detect solenoid valve, fixed plate 4 is only needed to be fixed on body 20 by bolt 5, oil circuit joint 42 is connected the joint 13 of oil supplying device, make an oil circuit joint input hydraulic pressure oil, other oil circuit joints do not input, and whether the valve head that can run through the oil circuit joint of input hydraulic pressure oil corresponding breaks down.
The hydraulic jack of the present embodiment can control to make piston rod can stablize at specified position by the first control valve and second, thus avoids piston rod to produce vibrations or displacement; In addition, when carrying out solenoid valve and detecting, do not need solenoid valve all to take apart, thus carry out easily and fast safeguarding and overhauling.
It is to be noted; above-mentioned preferred embodiment is only and technical conceive of the present utility model and feature is described; its object is to person skilled in the art can be understood content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (5)
1. a hydraulic jack, comprise oil supplying device, cylinder barrel and piston rod, described piston rod is arranged along the axial direction of cylinder barrel, piston rod can move relative to cylinder barrel, and oil supplying device is communicated with cylinder barrel, it is characterized in that: hydraulic jack also comprises the first control valve and the second control valve, first, second control valve described is arranged on cylinder barrel two ends and is communicated with cylinder barrel inside, and described oil supplying device is communicated with first, second control valve respectively.
2. hydraulic jack as claimed in claim 1, is characterized in that: described first control valve and the second control valve are solenoid valve.
3. hydraulic jack as claimed in claim 2, it is characterized in that: described solenoid valve comprises body and valve head, body is provided with hydraulic pressure oil duct.
4. hydraulic jack as claimed in claim 3, it is characterized in that: described hydraulic jack comprises detection device, and detection device comprises fixed plate, fixed plate is provided with multiple through hole, and through hole is provided with oil circuit joint, and the hydraulic pressure oil duct of the corresponding solenoid valve of oil circuit joint is arranged.
5. hydraulic jack as claimed in claim 4, is characterized in that: be bolted between described fixed plate and body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942005.6U CN205190432U (en) | 2015-11-24 | 2015-11-24 | Hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942005.6U CN205190432U (en) | 2015-11-24 | 2015-11-24 | Hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190432U true CN205190432U (en) | 2016-04-27 |
Family
ID=55783427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520942005.6U Expired - Fee Related CN205190432U (en) | 2015-11-24 | 2015-11-24 | Hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190432U (en) |
-
2015
- 2015-11-24 CN CN201520942005.6U patent/CN205190432U/en not_active Expired - Fee Related
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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: 20160427 Termination date: 20161124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |