CN205639168U - Pressure cylinder - Google Patents
Pressure cylinder Download PDFInfo
- Publication number
- CN205639168U CN205639168U CN201620471856.1U CN201620471856U CN205639168U CN 205639168 U CN205639168 U CN 205639168U CN 201620471856 U CN201620471856 U CN 201620471856U CN 205639168 U CN205639168 U CN 205639168U
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- CN
- China
- Prior art keywords
- cavity
- piston rod
- cylinder body
- cylinder
- rod
- Prior art date
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Abstract
The utility model discloses a pressure cylinder pressure cylinder includes cylinder body, piston rod, first bag membrane and second bag membrane, the piston rod is coaxial to be established in the cylinder body, the one end of first bag membrane and second bag membrane is all fixed and is followed the piston rod and remove in the cylinder body with the piston rod, the other end of first bag membrane and second bag membrane is all fixed with the cylinder body, first bag membrane, piston rod and cylinder body combination form first cavity, second bag membrane, piston rod and cylinder body combination form the second cavity, be equipped with first passageway and first cavity intercommunication on the cylinder body, be equipped with second channel and second cavity intercommunication on the cylinder body, the movable pressure area of first cavity is greater than the movable pressure area of second cavity. The utility model discloses pressure cylinder long service life.
Description
Technical field
This utility model relates to oil cylinder gentle cylinder technology field, particularly relates to a kind of pressurized cylinder.
Background technology
At present, known oil cylinder or cylinder are made up of cylinder body, piston, sealing member etc., form one
Plant the movable sealing cavity of rigidity, although bigger pressure can be carried, but because piston back-and-forth movement causes
Sealing part abrasion and lost efficacy, produce oil cylinder Seepage.
Utility model content
The technical problems to be solved in the utility model is to provide one and sealing member can be avoided with piston
Bar moves back and forth and produces the pressurized cylinder of abrasion
For solving the problems referred to above, this utility model provides a kind of pressurized cylinder, and described pressurized cylinder includes
Cylinder body, piston rod, the first cyst membrane and the second cyst membrane, described piston rod is coaxially located in cylinder body,
One end of described first cyst membrane and the second cyst membrane is all fixed with piston rod and follows piston rod at cylinder
Internal movement, the other end of described first cyst membrane and the second cyst membrane all fixes with cylinder body, and described
One cyst membrane, piston rod and cylinder body combination formed the first cavity, described second cyst membrane, piston rod and
Cylinder body combination forms the second cavity, and described cylinder body is provided with first passage and the connection of the first cavity,
Described cylinder body is provided with second channel and the connection of the second cavity, the activity pressure of described first cavity
Area is more than the activity pressure area of the second cavity.
Further, it is provided with step in described cylinder body.
Further, described piston rod includes first body of rod, second body of rod and assembly, institute
State first body of rod and second body of rod is fixed on the both sides of assembly.
Further, the diameter of described first body of rod more than the diameter of second body of rod, and described the
One body of rod is positioned at the first cavity, and described second body of rod is positioned at the second cavity.
Further, described first cyst membrane and the second cyst membrane are made up of rubber.
This utility model pressurized cylinder, is provided with multiple cyst membrane to play between cylinder body and piston rod
Sealing function, cyst membrane does not produce the abrasion of relative motion in the motor process of piston rod, only
Laminating, separating action is produced, it is to avoid the problem of seepage with cylinder body, piston rod, thus along long
Service life of pressurized cylinder.
Accompanying drawing explanation
Fig. 1 is the structural representation of the better embodiment of this utility model pressurized cylinder.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
As it is shown in figure 1, the better embodiment of this utility model pressurized cylinder includes cylinder body 1, lives
Stopper rod the 2, first cyst membrane 31 and the second cyst membrane 32.Described piston rod 2 is coaxially located at cylinder body 1
On.One end of described first cyst membrane 31 is fixed and with piston rod 2 at cylinder body 1 with piston rod 2
Interior movement, the other end of described first cyst membrane 31 is fixed with cylinder body 1；Described second cyst membrane 32
One end and piston rod 2 fixing and move in cylinder body 1 with piston rod 2, described second cyst membrane
The other end of 32 is fixed with cylinder body 1；First cyst membrane 31 and the second cyst membrane 32 by clip or
On the stationary housings such as screw 1 and piston rod 2.Described first cyst membrane 31, piston rod 2 and cylinder
Body 1 combination forms the first cavity 41, described second cyst membrane 32, piston rod 2 and cylinder body 1 group
Closing and form the second cavity 42, described cylinder body 1 is provided with first passage 11 and the first cavity 41
Connection, described cylinder body 1 is provided with second channel 12 and connects with the second cavity 42, can pass through the
One passage 11 and second channel 12 pass in and out oil or gas.First cavity when described piston rod 2 moves
41 and second the volume of cavity 42 change.The activity pressure face of described first cavity 41
The long-pending activity pressure area more than the second cavity 42；The activity pressure face of described first cavity 41
Amass is that the first cyst membrane 31 is laterally for area and first cavity 41 inner piston rod 2 of bearing pressure
Cross-sectional area sum, the activity pressure area of described second cavity 42 is that the second cyst membrane 32 is horizontal
To for the area of bearing pressure and the cross-sectional area sum of the second cavity 42 inner piston rod 2.
It is provided with step in described cylinder body 1, is thusly-formed two different size of receiving chambeies so that it is
The activity pressure area of described first cavity 41 is more than the activity pressure area of the second cavity 42.
Described piston rod 2 includes the first body of rod 21, second body of rod 22 and assembly 23, institute
State first body of rod 21 and second body of rod 22 is fixed on the both sides of assembly 23, described piston rod
2 is one-body molded, it is simple to technique manufacture.Described assembly 23 is used for preventing piston rod 2 at cylinder
Rock in body 1.The diameter of described first body of rod 21 is more than the diameter of second body of rod 22, and institute
Stating first body of rod 21 and be positioned at the first cavity 41, described second body of rod 22 is positioned at the second cavity
In 42, the activity pressure area of the first cavity 41 is further allowed to be more than the second cavity 42
Activity pressure area.
When first passage 11 oil-feed or gas, second channel 12 is fuel-displaced or during gas, for supercharging.
When first passage 11 is fuel-displaced or during gas, when second channel 12 oil-feed or gas, for blood pressure lowering.At cylinder
First cyst membrane 31 and the second cyst membrane 32 be set between body 1 and piston rod 2 to play sealing function,
First cyst membrane 31 does not produce relative fortune with the second cyst membrane 32 in the motor process of piston rod 2
Dynamic abrasion, only produce laminating, separating action with cylinder body 1, piston rod 2, it is to avoid seepage
Problem, thus along having grown service life of pressurized cylinder.
These are only embodiment of the present utility model, not thereby limit of the present utility model specially
Profit scope, every equivalent structure utilizing this utility model description and accompanying drawing content to be made, directly
Connect or be indirectly used in other relevant technical fields, the most in like manner protect in patent of the present utility model
Within the scope of protecting.
Claims (5)
1. a pressurized cylinder, it is characterised in that: described pressurized cylinder include cylinder body, piston rod,
One cyst membrane and the second cyst membrane, described piston rod is coaxially located in cylinder body, described first cyst membrane and
One end of two cyst membranes is all fixed with piston rod and is followed piston rod and moves in cylinder body, and described first
The other end of cyst membrane and the second cyst membrane is all fixed with cylinder body, described first cyst membrane, piston rod and cylinder
Body combination forms the first cavity, and it is empty that described second cyst membrane, piston rod and cylinder body combination form second
Chamber, described cylinder body is provided with first passage and the connection of the first cavity, and described cylinder body is provided with second
Passage and the connection of the second cavity, the activity pressure area of described first cavity is more than the second cavity
Activity pressure area.
2. pressurized cylinder as claimed in claim 1, it is characterised in that: it is provided with in described cylinder body
Step.
3. pressurized cylinder as claimed in claim 1 or 2, it is characterised in that: described piston rod bag
Including first body of rod, second body of rod and assembly, described first body of rod and second body of rod are fixed on
The both sides of assembly.
4. pressurized cylinder as claimed in claim 3, it is characterised in that: described first body of rod straight
Footpath is more than the diameter of second body of rod, and described first body of rod is positioned at the first cavity, and described second
The body of rod is positioned at the second cavity.
5. pressurized cylinder as claimed in claim 1, it is characterised in that: described first cyst membrane and the
Two cyst membranes are made up of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620471856.1U CN205639168U (en) | 2016-05-23 | 2016-05-23 | Pressure cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620471856.1U CN205639168U (en) | 2016-05-23 | 2016-05-23 | Pressure cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639168U true CN205639168U (en) | 2016-10-12 |
Family
ID=57055433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620471856.1U Expired - Fee Related CN205639168U (en) | 2016-05-23 | 2016-05-23 | Pressure cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578724A (en) * | 2019-09-30 | 2019-12-17 | 纪新刚 | Liquid supercharger |
-
2016
- 2016-05-23 CN CN201620471856.1U patent/CN205639168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578724A (en) * | 2019-09-30 | 2019-12-17 | 纪新刚 | Liquid supercharger |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 |