CN205780008U - Seal cushion cylinder - Google Patents
Seal cushion cylinder Download PDFInfo
- Publication number
- CN205780008U CN205780008U CN201620526082.8U CN201620526082U CN205780008U CN 205780008 U CN205780008 U CN 205780008U CN 201620526082 U CN201620526082 U CN 201620526082U CN 205780008 U CN205780008 U CN 205780008U
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- CN
- China
- Prior art keywords
- piston
- piston rod
- end cover
- cylinder body
- cylinder
- 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
This utility model relates to a kind of sealing cushion cylinder, including cylinder body, piston, piston rod, upper end cover and bottom end cover, the upper end of piston rod is positioned at outside cylinder body through upper end cover, the lower end of piston rod is positioned at cylinder interior through piston, upper end cover, piston, upper oil cavitie is formed between piston rod and cylinder body, piston, bottom end cover, lower oil cavitie is formed between piston rod and cylinder body, the surface towards upper oil cavitie of piston offers cushion hole, telescopic sealing shroud it is sealed and installed with between upper end cover and piston rod upper end, the upper end of sealing shroud is connected to the outer wall of end on piston rod, the bottom of sealing shroud is connected to the upper surface of upper end cover.The beneficial effects of the utility model are: increase cushion hole, produce back pressure, the impulsive force of buffer force feed, when piston movement to bottom end cover end face, do not have the phenomenon that clashes, it is to avoid cylinder part sustains damage；Set up sealing shroud, keep the cleaning stretching out the piston rod surface of cylinder body, increase the service life of oil cylinder.
Description
Technical field
This utility model relates to a kind of sealing cushion cylinder.
Background technology
The structure of the oil cylinder used at present is: include cylinder body, upper end cover, bottom end cover, piston and piston rod, upper end cover,
Form upper oil cavitie between piston, piston rod and cylinder body, between piston, bottom end cover, piston rod and cylinder body, form lower oil cavitie, upper end cover
In be provided with upper oil hole, the two ends of upper oil hole are connected externally to lead to upper oil cavitie and upper end cover respectively, are provided with lower master in bottom end cover
Oilhole and lower oilhole, the two ends of lower main oil-hole are connected externally to lead to piston hole and bottom end cover respectively, and the two ends of lower oilhole are divided
Not being connected with lower oil cavitie and piston hole, piston hole is connected with lower oil cavitie.
The operation principle of oil cylinder is: hydraulic oil enters inside lower oil cavitie from lower main oil-hole, makes oil pressure in lower oil cavitie increase, oil
Pressure promotes piston and piston rod up to move, and now the hydraulic oil in upper oil cavitie is discharged from upper oil hole；Otherwise, hydraulic oil is from upper
Oilhole oil-feed, makes oil pressure in upper oil cavitie increase, and oil pressure promotes piston and piston rod down to move, the now hydraulic oil in lower oil cavitie
Discharging from lower main oil-hole, wherein during piston rod down moves, the piston hole of bottom end cover is stretched in the lower end of piston rod
In, now the hydraulic oil in lower oil cavitie enters piston hole through lower oilhole, then discharges from lower main oil-hole.
When piston rod drive bigger quality object move downward time, possessed the biggest kinetic energy, when piston movement under
During end cap end face, the biggest impulsive force can be produced, easily make cylinder part sustain damage.
Meanwhile, when oil cylinder is when outdoor, and owing to dust is more, the surface of piston rod can accumulate dust, affects piston
Smooth operation.
Utility model content
The technical problems to be solved in the utility model is: based on the problems referred to above, it is provided that a kind of sealing cushion cylinder.
This utility model solves its technical problem and be the technical scheme is that a kind of sealing cushion cylinder, including cylinder body,
Being provided with piston and piston rod in cylinder body, cylinder body both ends are provided with upper end cover and bottom end cover, and the upper end of piston rod passes upper end
Lid is positioned at outside cylinder body, and the lower end of piston rod is positioned at cylinder interior, between upper end cover, piston, piston rod and cylinder body through piston
Forming upper oil cavitie, form lower oil cavitie between piston, bottom end cover, piston rod and cylinder body, the surface towards upper oil cavitie of piston is offered
Having on cushion hole, upper end cover and piston rod and be sealed and installed with telescopic sealing shroud between end, the upper end of sealing shroud connects
The outer wall of end on piston rod, the bottom of sealing shroud is connected to the upper surface of upper end cover.
Further, sealing shroud is corrugated tube.
The beneficial effects of the utility model are: cylinder structure is simple, easy to use, increase cushion hole, produce back pressure, buffering
The impulsive force of hydraulic oil, when piston movement to bottom end cover end face, do not have the phenomenon that clashes, it is to avoid cylinder part is subject to
To damage；Set up sealing shroud, keep the cleaning stretching out the piston rod surface of cylinder body, increase the service life of oil cylinder.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Wherein: 1. cylinder body, 2. piston, 3. piston rod, 4. upper end cover, 5. bottom end cover, 6. cushion hole, 7. sealing shroud.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is further described.These accompanying drawings are the schematic diagram of simplification only to show
Meaning mode illustrates basic structure of the present utility model, and therefore it only shows the composition relevant with this utility model.
A kind of sealing cushion cylinder as shown in Figure 1, including cylinder body 1, is provided with piston 2 and piston rod 3, cylinder in cylinder body 1
Body 1 both ends are provided with upper end cover 4 and bottom end cover 5, and it is outside that the upper end of piston rod 3 is positioned at cylinder body 1 through upper end cover 4, piston rod 3
To be positioned at cylinder body 1 through piston 2 internal in lower end, form upper oil cavitie, piston between upper end cover 4, piston 2, piston rod 3 and cylinder body 1
2, forming lower oil cavitie between bottom end cover 5, piston rod 3 and cylinder body 1, the surface towards upper oil cavitie of piston 2 offers cushion hole 6,
Being sealed and installed with telescopic sealing shroud 7 on upper end cover 4 and piston rod 3 between end, the upper end of sealing shroud 7 is connected to piston
The outer wall of end on bar 3, the bottom of sealing shroud 7 is connected to the upper surface of upper end cover 4.
Increasing cushion hole 6, cushion hole 6 produces back pressure, and the impulsive force of buffer force feed, when piston movement is to bottom end cover end face
Time, do not have the phenomenon that clashes, it is to avoid cylinder part sustains damage.
Sealing shroud 7 is corrugated tube, and corrugated tube keeps the cleaning stretching out the piston rod surface of cylinder body, increases the use longevity of oil cylinder
Life.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and amendment completely in the range of without departing from this utility model technological thought.This reality
The content being not limited in description by novel technical scope, it is necessary to determine its technology according to right
Property scope.
Claims (2)
1. seal a cushion cylinder, including cylinder body (1), in cylinder body (1), be provided with piston (2) and piston rod (3), cylinder body (1)
Both ends are provided with upper end cover (4) and bottom end cover (5), and it is outside that the upper end of piston rod (3) is positioned at cylinder body (1) through upper end cover (4),
It is internal that the lower end of piston rod (3) is positioned at cylinder body (1) through piston (2), upper end cover (4), piston (2), piston rod (3) and cylinder body
(1) form upper oil cavitie between, between piston (2), bottom end cover (5), piston rod (3) and cylinder body (1), form lower oil cavitie, its feature
It is: the surface towards upper oil cavitie of described piston (2) offers cushion hole (6), upper end cover (4) end upper with piston rod (3)
Between be sealed and installed with telescopic sealing shroud (7), the upper end of sealing shroud (7) is connected to the outer wall of the upper end of piston rod (3),
The bottom of sealing shroud (7) is connected to the upper surface of upper end cover (4).
Sealing cushion cylinder the most according to claim 1, is characterized in that: described sealing shroud (7) is corrugated tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620526082.8U CN205780008U (en) | 2016-06-02 | 2016-06-02 | Seal cushion cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620526082.8U CN205780008U (en) | 2016-06-02 | 2016-06-02 | Seal cushion cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780008U true CN205780008U (en) | 2016-12-07 |
Family
ID=58135640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620526082.8U Expired - Fee Related CN205780008U (en) | 2016-06-02 | 2016-06-02 | Seal cushion cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780008U (en) |
-
2016
- 2016-06-02 CN CN201620526082.8U patent/CN205780008U/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: 20161207 Termination date: 20170602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |