CN207513985U - A kind of oil cylinder - Google Patents
A kind of oil cylinder Download PDFInfo
- Publication number
- CN207513985U CN207513985U CN201721472132.XU CN201721472132U CN207513985U CN 207513985 U CN207513985 U CN 207513985U CN 201721472132 U CN201721472132 U CN 201721472132U CN 207513985 U CN207513985 U CN 207513985U
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- CN
- China
- Prior art keywords
- cylinder
- piston
- cylinder barrel
- piston rod
- oil
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Abstract
The utility model is related to a kind of oil cylinders.The device includes cylinder barrel and the piston rod being inserted in cylinder barrel, piston rod free end in cylinder barrel is connected with the piston being slidably connected with inner wall of cylinder, cylinder barrel inner space is divided into relatively independent upper cavity and lower chamber by the piston, two mutually independent left channels and right channel are equipped in the piston rod, piston rod outside cylinder barrel offers mutually independent left oil port and right oil port, one end of the left channel is connected with lower chamber, the other end is connected with left oil port, one end of the right channel is connected with upper cavity, and the other end is connected with right oil port.Since left channel matches and right channel is matched with piston with piston, so as to fulfill the elongation and contraction of piston rod, while left oil port is all located at piston rod the same end with right oil port, easy to operate.
Description
Technical field
The utility model is related to a kind of oil cylinders.
Background technology
Telescopic oil cylinder is disclosed in existing Chinese patent database, number of patent application is：201710213076.6 Shen
Please day be：2017.04.01 application publication number：CN107061412A, data of publication of application：2017.08.18 the device includes cylinder
Cylinder is inserted into a piston in the cylinder barrel, and the piston is boring structure, is equipped with an oil inlet pipe in piston, piston with
There are gap between oil inlet pipe, damping sealing ring is cased on the outside of one end end that the piston is stretched into cylinder barrel, with damping sealing
The cylinder barrel end of ring the same end is equipped with the first oil inlet, and the first oil inlet is connected with oil inlet pipe, set on the other end side wall of cylinder barrel
There is the second oil inlet, the piston side wall on rear side of damping sealing ring is equipped with third oil inlet, when piston maximum stretches out state, third
Oil inlet and the second oil inlet are connected, and are equipped with oil outlet with the pistons end side wall of second oil inlet the same side, oil outlet connects
The gap of logical oil inlet pipe, oil inlet pipe and piston.Disadvantage is that：The telescopic oil cylinder unreasonable structure, is not easy to narrow
It is used in space.
Utility model content
The purpose of this utility model be in view of the deficienciess of the prior art, provide a kind of structure more rationally, convenient for
The oil cylinder used in small space.
A kind of oil cylinder includes cylinder barrel and the piston rod being inserted in cylinder barrel, and the piston rod free end in cylinder barrel connects
The piston being slidably connected with inner wall of cylinder is connected to, cylinder barrel inner space is divided into relatively independent upper cavity under by the piston
Cavity, the piston rod is interior to be offered mutually equipped with two mutually independent left channels and right channel, the piston rod outside cylinder barrel
Independent left oil port and right oil port, one end and the lower chamber of the left channel are connected, and the other end is connected with left oil port, described right logical
The one end in road is connected with upper cavity, and the other end is connected with right oil port.
During utility model works, operating personnel inject hydraulic oil to left oil port, and hydraulic oil enters cavity of resorption by left channel
Body, hydraulic oil rise piston, piston rod elongation, and then operating personnel inject hydraulic oil to right oil port, and hydraulic oil is logical by the right side
Road enters upper cavity, while the hydraulic oil in lower chamber is discharged through left channel from left oil port, and hydraulic oil declines piston, piston rod
It shrinks.
Compared with prior art, the beneficial effects of the utility model are：Since left channel matches and right logical with piston
Road is matched with piston, and so as to fulfill the elongation and contraction of piston rod, while with right oil port to be all located at piston rod same for left oil port
End, it is easy to operate.
For the speed that piston rod is controlled to extend or shrink, while avoid oil pressure excessively high and damage oil cylinder, easy access oil
Cylinder offers the pressure relief opening with cylinder barrel internal switching on the side wall of the cylinder barrel.
Further, the cylinder barrel includes cylindrical outer wall and is connected to the upper end cover of cylindrical outer wall one end, is connected to cylinder
The bottom end cover of the shape outer wall other end, the piston rod are extended to across upper end cover in cylinder barrel.
In order to avoid piston is directly contacted with bottom end cover, while the generation of noise is reduced, the bottom end cover table with piston contact
Face is covered with buffer layer.
In order to ensure piston is connect reliably with inner wall of cylinder, the piston side wall is equipped with matched close with inner wall of cylinder
Seal.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Wherein, 1 cylinder barrel, 101 upper cavities, 102 lower chambers, 103 pressure relief openings, 104 cylindrical outer walls, 105 upper end covers, under 106
End cap, 2 piston rods, 201 pistons, 202 left channels, 203 right channels, 204 left oil ports, 205 right oil ports, 3 buffer layers, 4 sealing rings.
Specific embodiment
As described in Figure 1, it is a kind of oil cylinder, the piston rod 2 for including cylinder barrel 1 and being inserted in cylinder barrel 1, further, cylinder
Cylinder 1 includes cylindrical outer wall 104 and is connected to that the upper end cover 105 of 104 one end of cylindrical outer wall, to be connected to cylindrical outer wall 104 another
The bottom end cover 106 at end, piston rod 2 are extended to across upper end cover 105 in cylinder barrel 1, in order to avoid piston 201 directly and bottom end cover
106 contacts, while reduce the generation of noise, 106 surface of bottom end cover contacted with piston 201 covered with buffer layer 3, in order to ensure
Piston 201 is connect reliably with 1 inner wall of cylinder barrel, 201 side wall of piston be equipped with the matched sealing ring 4 of 1 inner wall of cylinder barrel, positioned at cylinder
2 free end of piston rod in cylinder 1 is connected with the piston 201 being slidably connected with 1 inner wall of cylinder barrel, and piston 201 is by 1 inner space of cylinder barrel
Relatively independent upper cavity 101 and lower chamber 102 are divided into, two mutually independent left channels 202 is equipped in piston rod 2 and the right side leads to
Road 203, the piston rod 2 outside cylinder barrel 1 offer mutually independent left oil port 204 and right oil port 205, and the one of left channel 202
End is connected with lower chamber 102, and the other end is connected with left oil port 204, and one end and the upper cavity 101 of right channel 203 are connected, the other end
It is connected with right oil port 205, for the speed that piston rod 2 is controlled to extend or shrink, while avoids oil pressure excessively high and damage oil cylinder, just
In overhauling oil cylinder, the pressure relief opening 103 with 1 internal switching of cylinder barrel is offered on the side wall of cylinder barrel 1.
During work, operating personnel inject hydraulic oil to left oil port 204, and hydraulic oil enters lower chamber by left channel 202
102, hydraulic oil rises piston 201, and piston rod 2 extends, and then operating personnel inject hydraulic oil, hydraulic oil to right oil port 205
Upper cavity 101 is entered, while the hydraulic oil in lower chamber 102 is discharged through left channel 202 from left oil port 204 by right channel 203,
Hydraulic oil declines piston 201, and piston rod 2 is shunk.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed in the utility model, this
For the technical staff in field according to disclosed technology contents, not needing to performing creative labour can be to some of which technology spy
Sign makes some and replaces and deform, these are replaced and deformation is within the protection scope of the present utility model.
Claims (5)
1. a kind of oil cylinder includes cylinder barrel and the piston rod being inserted in cylinder barrel, the piston rod free end connection in cylinder barrel
There is the piston being slidably connected with inner wall of cylinder, cylinder barrel inner space is divided into relatively independent upper cavity and cavity of resorption by the piston
Body, it is characterised in that:Two mutually independent left channels are equipped in the piston rod and right channel, the piston rod outside cylinder barrel are opened
Equipped with mutually independent left oil port and right oil port, one end and the lower chamber of the left channel are connected, and the other end is connected with left oil port,
One end of the right channel is connected with upper cavity, and the other end is connected with right oil port.
2. a kind of oil cylinder according to claim 1, it is characterised in that：Offered on the side wall of the cylinder barrel with inside cylinder barrel
The pressure relief opening of connection.
3. a kind of oil cylinder according to claim 2, it is characterised in that：The cylinder barrel includes cylindrical outer wall and is connected to cylinder
The upper end cover of shape outer wall one end, the bottom end cover for being connected to the cylindrical outer wall other end, the piston rod extend to cylinder across upper end cover
In cylinder.
4. a kind of oil cylinder according to claim 3, it is characterised in that：Lower end cap surface with piston contact is covered with buffering
Layer.
5. a kind of oil cylinder according to any claim in claim 1-4, it is characterised in that：It is set on the piston side wall
Have and the matched sealing ring of inner wall of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721472132.XU CN207513985U (en) | 2017-11-07 | 2017-11-07 | A kind of oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721472132.XU CN207513985U (en) | 2017-11-07 | 2017-11-07 | A kind of oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513985U true CN207513985U (en) | 2018-06-19 |
Family
ID=62538182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721472132.XU Active CN207513985U (en) | 2017-11-07 | 2017-11-07 | A kind of oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207513985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043529A (en) * | 2019-05-15 | 2019-07-23 | 扬州力液德机械有限公司 | A kind of high efficiency and heat radiation protective cover for hydraulic cylinder |
| CN113048123A (en) * | 2021-03-24 | 2021-06-29 | 北京汽车集团越野车有限公司 | Power cylinder assembly and vehicle |
-
2017
- 2017-11-07 CN CN201721472132.XU patent/CN207513985U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043529A (en) * | 2019-05-15 | 2019-07-23 | 扬州力液德机械有限公司 | A kind of high efficiency and heat radiation protective cover for hydraulic cylinder |
| CN110043529B (en) * | 2019-05-15 | 2023-08-25 | 扬州力液德机械有限公司 | Efficient heat dissipation protective cover for hydraulic cylinder |
| CN113048123A (en) * | 2021-03-24 | 2021-06-29 | 北京汽车集团越野车有限公司 | Power cylinder assembly and vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |