CN209976958U - Pure-step hydraulic multistage lifting type oil cylinder - Google Patents
Pure-step hydraulic multistage lifting type oil cylinder Download PDFInfo
- Publication number
- CN209976958U CN209976958U CN201920141011.XU CN201920141011U CN209976958U CN 209976958 U CN209976958 U CN 209976958U CN 201920141011 U CN201920141011 U CN 201920141011U CN 209976958 U CN209976958 U CN 209976958U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- ring
- shaped ring
- cylinder barrel
- 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
Links
Images
Abstract
The utility model provides a pure multistage formula hydro-cylinder that lifts of step hydraulic pressure, include: the device comprises a first piston rod, a dust ring, a cylinder barrel, a second piston rod and a third piston rod; a second piston rod is arranged inside the cylinder barrel and connected with the cylinder barrel in an embedding mode; the top end of the second piston rod is provided with a dust ring, and the dust ring is connected with the second piston rod through clearance fit; a second O-shaped ring is arranged above the outer wall of the second piston rod and is connected with the second piston rod in a sleeving manner; a first sealing ring is arranged below the second O-shaped ring and is connected with the second piston rod in a sleeving manner; the utility model discloses a to the improvement of a pure step hydraulic pressure multistage formula hydro-cylinder of lifting, have sealed effectual, improve piston rod location, guidance quality, stable advantage when improving the piston rod lift to effectual solution the utility model discloses the problem that proposes in current device is with not enough.
Description
Technical Field
The utility model relates to a hydraulic equipment technical field, more specifically the theory that says so especially relates to a pure step hydraulic pressure multistage formula hydro-cylinder that lifts.
Background
The pure step hydraulic multistage lifting type oil cylinder is a special hydraulic cylinder with wider application, can be divided into 2,3,4 and 5 stages of telescopic cylinders according to different telescopic stages, and can be divided into single-acting and double-acting multistage hydraulic cylinders according to different liquid supply times for completing one working cycle, wherein the single-acting multistage hydraulic cylinder is a plunger type telescopic hydraulic cylinder, the double-acting multistage hydraulic cylinder is a piston type telescopic hydraulic cylinder, and the last stage is a piston type telescopic hydraulic cylinder, and the front stage or the first stage is a plunger type telescopic hydraulic cylinder.
When a piston rod in the existing multi-stage lifting type oil cylinder is used, fine particles can be attached to the piston rod, after the piston rod is used for a long time, the surface of the piston rod is easy to be roughened, the positioning performance and the guiding performance of the piston rod are reduced due to excessive abrasion, and the bottom of the oil cylinder is easy to leak oil in an assembly mode, so that the piston rod is unstable when the piston rod is lifted.
In view of this, the present invention is to provide a hydraulic multi-stage lifting cylinder with pure steps, which has a good sealing effect, improves the positioning and guiding performance of the piston rod, and improves the stability of the piston rod during lifting.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pure step hydraulic pressure multistage formula hydro-cylinder of lifting to the sealed effect that proposes in solving above-mentioned background is poor, and excessive wearing and tearing make location, the direction performance decline of piston rod, and, the bottom of hydro-cylinder is in the easy oil leak of assembled more, leads to unstable problem and not enough of piston rod when going up and down.
In order to achieve the above object, the utility model provides a pure step hydraulic pressure multistage formula hydro-cylinder of lifting is reached by following concrete technological means:
the utility model provides a pure multistage formula hydro-cylinder that lifts of step hydraulic pressure, includes: the device comprises a first piston rod, a dustproof ring, a first O-shaped ring, a second O-shaped ring, a first sealing ring, a second sealing ring, a cylinder barrel, a second piston rod, a third piston rod, a first check ring, a third O-shaped ring, an oil seal, a third sealing ring, a second check ring, a fourth O-shaped ring, a fifth O-shaped ring, a bottom cover and a bottom plate; a second piston rod is arranged inside the cylinder barrel and connected with the cylinder barrel in an embedding mode; the top end of the second piston rod is provided with a dust ring, and the dust ring is connected with the second piston rod through clearance fit; a second O-shaped ring is arranged above the outer wall of the second piston rod and is connected with the second piston rod in a sleeving manner; a first sealing ring is arranged below the second O-shaped ring and is connected with the second piston rod in a sleeving manner; a second sealing ring is arranged below the first sealing ring and is connected with a second piston rod in a sleeving manner; a third piston rod is arranged in the second piston rod and connected with the second piston rod in an embedding manner; a first O-shaped ring is arranged on the outer wall of the third piston rod and connected with the third piston rod in a sleeving manner; a first piston rod is arranged inside the third piston rod and is connected with the third piston rod in an embedding manner; a bottom cover is arranged inside the bottom end of the cylinder barrel and connected with the cylinder barrel in a clamping mode; the bottom end of the bottom cover is provided with a bottom plate, and the bottom plate is connected with the bottom cover through a bolt; an oil seal is arranged above the outer wall of the bottom cover and is connected with the bottom cover in a sleeving manner; a third sealing ring is arranged below the outer wall of the bottom cover and connected with the bottom cover in a sleeving manner; a third O-shaped ring is arranged on the outer wall of the bottom end of the second piston rod and connected with the second piston rod in a sleeving manner; the outer walls of the bottom ends of the first piston rod and the third piston rod are provided with a second check ring and a fifth O-shaped ring, and the second check ring and the fifth O-shaped ring are connected with the first piston rod and the third piston rod in a sleeving manner; a fourth O-shaped ring is arranged at the bottom end of the first piston rod and connected with the first piston rod in a clamping mode; the outer wall of the bottom end of the first piston rod is provided with a first check ring, and the first check ring is connected with the first piston rod in a sleeving mode.
As the further optimization of this technical scheme, the utility model relates to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting the second sealing washer is the longitudinal symmetry formula structure and all sets up in first piston rod and second piston rod and third piston rod outer wall top.
As a further optimization of this technical scheme, the utility model relates to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting the sealing device of oil blanket and third sealing washer bottom and cylinder.
As the further optimization of this technical scheme, the utility model relates to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting first retaining ring all assembles on the outer wall of first piston rod and third piston rod with second retaining ring and fourth O type circle, fifth O type circle.
As the further optimization of this technical scheme, the utility model relates to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting the cylinder all is provided with the dust ring with the top of second piston rod and third piston rod, and the outer wall of dust ring is connected with cylinder and second piston rod and third piston rod top inside through the block mode.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
1. the utility model relates to a multistage formula hydro-cylinder that lifts of pure step hydraulic pressure is the setting that the longitudinal symmetry formula structure all set up above first piston rod and second piston rod and third piston rod outer wall through the second sealing washer, has strengthened the sealing performance of first piston rod and second piston rod and third piston rod, avoids first piston rod of tiny granule wearing and tearing and second piston rod and third piston rod outer wall.
2. The utility model relates to a pure multistage formula hydro-cylinder that lifts of step hydraulic pressure through the sealing device of oil blanket and third sealing washer bottom and cylinder to first retaining ring and second retaining ring and fourth O type circle, fifth O type circle all assemble the setting on the outer wall of first piston rod and third piston rod, avoid the oil leak phenomenon of bottom and cylinder after the use.
3. The utility model discloses a to the improvement of a pure step hydraulic pressure multistage formula hydro-cylinder of lifting, have sealed effectual, improve piston rod location, guidance quality, stable advantage when improving the piston rod lift to effectual solution the utility model discloses the problem that proposes in current device is with not enough.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of point A of the present invention;
fig. 3 is a schematic diagram of the explosion structure of the present invention.
In the figure: the oil seal structure comprises a first piston rod 1, a dust ring 2, a first O-shaped ring 3, a second O-shaped ring 4, a first sealing ring 5, a second sealing ring 6, a cylinder barrel 7, a second piston rod 8, a third piston rod 9, a first check ring 10, a third O-shaped ring 11, an oil seal 12, a third sealing ring 13, a second check ring 14, a fourth O-shaped ring 15, a fifth O-shaped ring 16, a bottom cover 17 and a bottom plate 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Please refer to fig. 1 to 3, the utility model provides a specific technical implementation scheme of a pure step hydraulic multi-stage lifting cylinder:
the utility model provides a pure multistage formula hydro-cylinder that lifts of step hydraulic pressure, includes: the device comprises a first piston rod 1, a dust ring 2, a first O-shaped ring 3, a second O-shaped ring 4, a first sealing ring 5, a second sealing ring 6, a cylinder barrel 7, a second piston rod 8, a third piston rod 9, a first check ring 10, a third O-shaped ring 11, an oil seal 12, a third sealing ring 13, a second check ring 14, a fourth O-shaped ring 15, a fifth O-shaped ring 16, a bottom cover 17 and a bottom plate 18; a second piston rod 8 is arranged inside the cylinder barrel 7, and the second piston rod 8 is connected with the cylinder barrel 7 in an embedding mode; the top end of the second piston rod 8 is provided with a dust ring 2, and the dust ring 2 is connected with the second piston rod 8 through clearance fit; a second O-shaped ring 4 is arranged above the outer wall of the second piston rod 8, and the second O-shaped ring 4 is connected with the second piston rod 8 in a sleeving manner; a first sealing ring 5 is arranged below the second O-shaped ring 4, and the first sealing ring 5 is connected with a second piston rod 8 in a sleeving manner; a second sealing ring 6 is arranged below the first sealing ring 5, and the second sealing ring 6 is connected with a second piston rod 8 in a sleeving manner; a third piston rod 9 is arranged inside the second piston rod 8, and the third piston rod 9 is connected with the second piston rod 8 in an embedding manner; a first O-shaped ring 3 is arranged on the outer wall of the third piston rod 9, and the first O-shaped ring 3 is connected with the third piston rod 9 in a sleeving manner; a first piston rod 1 is arranged inside the third piston rod 9, and the first piston rod 1 is connected with the third piston rod 9 in an embedding manner; a bottom cover 17 is arranged inside the bottom end of the cylinder barrel 7, and the bottom cover 17 is connected with the cylinder barrel 7 in a clamping mode; the bottom end of the bottom cover 17 is provided with a bottom plate 18, and the bottom plate 18 is connected with the bottom cover 17 through bolts; an oil seal 12 is arranged above the outer wall of the bottom cover 17, and the oil seal 12 is connected with the bottom cover 17 in a sleeving manner; a third sealing ring 13 is arranged below the outer wall of the bottom cover 17, and the third sealing ring 13 is connected with the bottom cover 17 in a sleeving manner; a third O-shaped ring 11 is arranged on the outer wall of the bottom end of the second piston rod 8, and the third O-shaped ring 11 is connected with the second piston rod 8 in a sleeving manner; the outer walls of the bottom ends of the first piston rod 1 and the third piston rod 9 are provided with a second check ring 14 and a fifth O-shaped ring 16, and the second check ring 14 and the fifth O-shaped ring 16 are connected with the first piston rod 1 and the third piston rod 9 in a sleeving manner; a fourth O-shaped ring 15 is arranged at the bottom end of the first piston rod 1, and the fourth O-shaped ring 15 is connected with the first piston rod 1 in a clamping mode; the outer wall of the bottom end of the first piston rod 1 is provided with a first retainer ring 10, and the first retainer ring 10 is connected with the first piston rod 1 in a sleeving manner.
Specifically, the second seal ring 6 is arranged above the outer walls of the first piston rod 1, the second piston rod 8 and the third piston rod 9 in a vertically symmetrical structure.
Specifically, the oil seal 12 and the third seal ring 13 are sealing devices between the bottom cover 17 and the cylinder tube 7.
Specifically, the first retainer ring 10, the second retainer ring 14, the fourth O-ring 15 and the fifth O-ring 16 are all assembled on the outer walls of the first piston rod 1 and the third piston rod 9.
Specifically, the top ends of the cylinder barrel 7, the second piston rod 8 and the third piston rod 9 are provided with the dustproof ring 2, and the outer wall of the dustproof ring 2 is connected with the inside of the top ends of the cylinder barrel 7, the second piston rod 8 and the third piston rod 9 in a clamping mode.
The method comprises the following specific implementation steps:
when the device is in a lifting type, external pressure oil directly enters the device through an oil inlet (not marked in the figure), under the action of oil pressure in the device, the second piston rod 8 firstly extends out, then the third piston rod 9 extends out, and finally the first piston rod 1 extends out, while the first piston rod 1, the second piston rod 8 and the third piston rod 9 extend out, internal hydraulic oil returns to an external oil tank through an oil outlet (not marked in the figure), the sealing performance of the first piston rod 1, the second piston rod 8 and the third piston rod 9 is enhanced through the arrangement that the second sealing ring 6 is in a vertically symmetrical structure and is arranged above the outer walls of the first piston rod 1, the second piston rod 8 and the third piston rod 9, the outer walls of the first piston rod 1, the second piston rod 8 and the third piston rod 9 are prevented from being worn by fine particles, and the oil seal 12 and the third sealing ring 13 are used as a sealing device of a bottom cover 17 and a cylinder barrel 7, and the first retainer ring 10, the second retainer ring 14, the fourth O-shaped ring 15 and the fifth O-shaped ring 16 are arranged on the outer walls of the first piston rod 1 and the third piston rod 9, so that the oil leakage phenomenon of the bottom cover 17 and the cylinder barrel 7 after use is avoided.
In summary, the following steps: the pure step hydraulic multistage lifting oil cylinder has the advantages that the second sealing ring is arranged above the outer walls of the first piston rod, the second piston rod and the third piston rod in an up-down symmetrical structure, the sealing performance of the first piston rod, the second piston rod and the third piston rod is enhanced, fine particles are prevented from wearing the outer walls of the first piston rod, the second piston rod and the third piston rod, and the sealing device of the bottom cover of the oil seal and the third sealing ring and the cylinder barrel is adopted, and the first retainer ring, the second retainer ring, the fourth O-shaped ring and the fifth O-shaped ring are all arranged on the outer walls of the first piston rod and the third piston rod, so that the oil leakage phenomenon of the bottom cover and the cylinder barrel after use is avoided, the problems of poor sealing effect and reduced positioning and guiding performance of the piston rod due to excessive abrasion are solved, and the bottom of the oil cylinder is easy to leak oil in an assembly mode, so that the problem that the piston rod is unstable when the piston rod is lifted is solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a pure multistage formula hydro-cylinder that lifts of step hydraulic pressure, includes: the oil seal structure comprises a first piston rod (1), a dust ring (2), a first O-shaped ring (3), a second O-shaped ring (4), a first sealing ring (5), a second sealing ring (6), a cylinder barrel (7), a second piston rod (8), a third piston rod (9), a first check ring (10), a third O-shaped ring (11), an oil seal (12), a third sealing ring (13), a second check ring (14), a fourth O-shaped ring (15), a fifth O-shaped ring (16), a bottom cover (17) and a bottom plate (18); the method is characterized in that: a second piston rod (8) is arranged inside the cylinder barrel (7), and the second piston rod (8) is connected with the cylinder barrel (7) in an embedding mode; the top end of the second piston rod (8) is provided with a dust ring (2), and the dust ring (2) is connected with the second piston rod (8) through clearance fit; a second O-shaped ring (4) is arranged above the outer wall of the second piston rod (8), and the second O-shaped ring (4) is connected with the second piston rod (8) in a sleeving manner; a first sealing ring (5) is arranged below the second O-shaped ring (4), and the first sealing ring (5) is connected with a second piston rod (8) in a sleeving manner; a second sealing ring (6) is arranged below the first sealing ring (5), and the second sealing ring (6) is connected with a second piston rod (8) in a sleeving manner; a third piston rod (9) is arranged inside the second piston rod (8), and the third piston rod (9) is connected with the second piston rod (8) in an embedding manner; a first O-shaped ring (3) is arranged on the outer wall of the third piston rod (9), and the first O-shaped ring (3) is connected with the third piston rod (9) in a sleeving manner; a first piston rod (1) is arranged inside the third piston rod (9), and the first piston rod (1) is connected with the third piston rod (9) in an embedding manner; a bottom cover (17) is arranged inside the bottom end of the cylinder barrel (7), and the bottom cover (17) is connected with the cylinder barrel (7) in a clamping mode; the bottom end of the bottom cover (17) is provided with a bottom plate (18), and the bottom plate (18) is connected with the bottom cover (17) through a bolt; an oil seal (12) is arranged above the outer wall of the bottom cover (17), and the oil seal (12) is connected with the bottom cover (17) in a sleeving manner; a third sealing ring (13) is arranged below the outer wall of the bottom cover (17), and the third sealing ring (13) is connected with the bottom cover (17) in a sleeving manner; a third O-shaped ring (11) is arranged on the outer wall of the bottom end of the second piston rod (8), and the third O-shaped ring (11) is connected with the second piston rod (8) in a sleeving manner; a second check ring (14) and a fifth O-shaped ring (16) are arranged on the outer walls of the bottom ends of the first piston rod (1) and the third piston rod (9), and the second check ring (14) and the fifth O-shaped ring (16) are connected with the first piston rod (1) and the third piston rod (9) in a sleeving manner; a fourth O-shaped ring (15) is arranged at the bottom end of the first piston rod (1), and the fourth O-shaped ring (15) is connected with the first piston rod (1) in a clamping mode; a first check ring (10) is arranged on the outer wall of the bottom end of the first piston rod (1), and the first check ring (10) is connected with the first piston rod (1) in a sleeving manner;
the second sealing rings (6) are arranged above the outer walls of the first piston rod (1), the second piston rod (8) and the third piston rod (9) in a vertically symmetrical structure;
the oil seal (12), the third sealing ring (13), a bottom cover (17) and the cylinder barrel (7) are sealed;
the first retainer ring (10), the second retainer ring (14), the fourth O-shaped ring (15) and the fifth O-shaped ring (16) are all assembled on the outer walls of the first piston rod (1) and the third piston rod (9);
the dust ring (2) is arranged on the top ends of the cylinder barrel (7), the second piston rod (8) and the third piston rod (9), and the outer wall of the dust ring (2) is connected with the inside of the top ends of the cylinder barrel (7), the second piston rod (8) and the third piston rod (9) in a clamping mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920141011.XU CN209976958U (en) | 2019-01-28 | 2019-01-28 | Pure-step hydraulic multistage lifting type oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920141011.XU CN209976958U (en) | 2019-01-28 | 2019-01-28 | Pure-step hydraulic multistage lifting type oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209976958U true CN209976958U (en) | 2020-01-21 |
Family
ID=69252716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920141011.XU Expired - Fee Related CN209976958U (en) | 2019-01-28 | 2019-01-28 | Pure-step hydraulic multistage lifting type oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209976958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431811A (en) * | 2020-12-04 | 2021-03-02 | 徐州徐工液压件有限公司 | Double-cylinder combined type multi-stage bolt hydraulic cylinder |
-
2019
- 2019-01-28 CN CN201920141011.XU patent/CN209976958U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431811A (en) * | 2020-12-04 | 2021-03-02 | 徐州徐工液压件有限公司 | Double-cylinder combined type multi-stage bolt hydraulic cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204553199U (en) | A kind of plunger pump clack box assembly | |
| CN209976958U (en) | Pure-step hydraulic multistage lifting type oil cylinder | |
| CN204099333U (en) | A kind of double-action single-stage cylinder | |
| CN204900405U (en) | Welding formula level four hydro -cylinder for nonoculture | |
| CN211009373U (en) | Hydraulic oil cylinder with respirator structure | |
| CN201786808U (en) | Oil cylinder structure | |
| CN218542565U (en) | Gas-proof rod type oil well pump with gas storage cavity | |
| CN201763721U (en) | Double-action multi-stage hydraulic cylinder with external position and internal communication | |
| CN211852373U (en) | Two-stage independent control oil cylinder structure | |
| CN204689530U (en) | A kind of double-action hydraulic jack | |
| CN208234447U (en) | A kind of high-precision is intermittently welded formula hydraulic jack | |
| CN209975550U (en) | Pile clamping device for jacket installation | |
| CN210290031U (en) | Double-acting four-inlet four-outlet reciprocating pump | |
| CN209740589U (en) | Hollow double-acting oil jack | |
| CN209272176U (en) | A kind of easy double flat arm floor mast components correction tool | |
| CN210290032U (en) | Reciprocating radial two-inlet two-outlet pump | |
| CN108190781A (en) | A kind of high-precision is intermittently welded formula hydraulic jack | |
| CN217152808U (en) | Elevator buffer | |
| CN210818308U (en) | Tool for assembling piston rod of oil cylinder | |
| CN217603047U (en) | Discharging oil cylinder for storage bin | |
| CN211715109U (en) | Gas injection scale control thick pump | |
| CN214578065U (en) | Multistage flexible hydraulic cylinder convenient to dismouting | |
| CN211623867U (en) | Front-mounted telescopic hydraulic cylinder | |
| CN211423061U (en) | Hydraulic oil cylinder | |
| CN219795546U (en) | Emulsion pump sealing connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200121 Termination date: 20210128 |