CN205908747U - Piston seal device - Google Patents
Piston seal device Download PDFInfo
- Publication number
- CN205908747U CN205908747U CN201620640800.4U CN201620640800U CN205908747U CN 205908747 U CN205908747 U CN 205908747U CN 201620640800 U CN201620640800 U CN 201620640800U CN 205908747 U CN205908747 U CN 205908747U
- Authority
- CN
- China
- Prior art keywords
- ring
- push rod
- roller
- cylinder body
- baffle
- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a piston seal device, comprising a cylinder body, the inside push rod that is equipped with of cylinder body, push rod tip fixedly connected with baffle, the fender ring is fixed to fixed being equipped with of push rod lateral wall, the baffle is close to fixed one side that keeps off the ring and is connected with first gyro wheel through the connecting piece rotation, the fixed one side encircled near the baffle that keeps off is connected with the second gyro wheel through the connecting piece rotation, first gyro wheel and second gyro wheel all rotate with the sealing washer to be connected, laminate each other in the internal surface of sealing washer and cylinder body and the side of push rod. The utility model relates to a rationally, in work, can guarantee that the sealing washer can rotate to can reduce the wearing and tearing of sealing washer, prolong life, and convenient the change has very high practicality.
Description
Technical field
This utility model belongs to virtue with social course teaching aid technical field and in particular to a kind of piston sealing device.
Background technology
Piston sealing device described in prior art is usually arranged as, and the end of piston is provided with back-up ring, and in back-up ring
Outside suit sealing ring, sealing ring is fitted with the medial surface of cylinder body, to play sealing function, the piston sealing device of this mode
During using, piston moves back and forth in cylinder body, produces between sealing ring meeting thereon and the medial surface of cylinder body simultaneously
Sliding friction, frictional resistance is larger, and its sealing ring easily damages because of long abrasion, thus reducing between piston and cylinder body
Sealing, simultaneously because sealing ring is sleeved on back-up ring, fixing by interacting between back-up ring and sealing ring, this makes
Obtain when changing sealing ring it is not easy to assemble.
The patent of Publication No. cn203374808u discloses a kind of piston sealing device, including cylinder body and piston, described
The end of piston is provided with back-up ring, is moved back and forth in cylinder body with the end limiting piston；Described piston the outside of back-up ring according to
Secondary be provided with the first baffle ring, sealing ring and the second baffle ring, be fixedly connected between described first baffle ring, the second baffle ring and back-up ring；Institute
State the first baffle ring or the second baffle ring and can carry out impetus to sealing ring when piston moves back and forth, so that the same piston of sealing ring
Move together., during using, when piston moves back and forth in cylinder body, sealing ring is the first of its both sides for this utility model
In the presence of baffle ring and the second baffle ring, move together with piston, and the friction between sealing ring and cylinder body is rolling friction, friction
Resistance is less, extends the service life of sealing ring；Simultaneously when the sealing ring being used damages, due between sealing ring and piston
Can there is no interaction force, this reduces the installation requirement of sealing ring.
But device does not reach default effect in actual use disclosed in above-mentioned patent, it is mainly manifested in work
When sealing ring simultaneously with the first baffle ring, the second baffle ring, cylinder body and piston side wall jointly there is rubbing action so that sealing ring very
Be hard to keep rolling friction, and easily weares and teares, and service life is relatively low.
Utility model content
The purpose of this utility model is to provide a kind of piston sealing device, with solve in above-mentioned background technology propose ask
Topic.
For achieving the above object, this utility model provides a kind of following technical scheme: piston sealing device, including cylinder body,
Described cylinder interior is provided with push rod, and described push rod end is fixedly connected with baffle plate, and described push rod side wall is fixed with fixing baffle ring,
Described baffle plate is rotatably connected to the first roller near the side of fixing baffle ring by connector, and described fixing baffle ring is near baffle plate
Side is rotatably connected to the second roller by connector, and described first roller and the second roller all rotate with sealing ring and connect, institute
State sealing ring and the inner surface of cylinder body and the side of push rod is bonded to each other.
Preferably, threaded between described push rod end and baffle plate.
Preferably, described first roller and the second roller all include outer shroud and internal ring.
Preferably, described outer shroud is elastic wear-resisting rubber ring, and described internal ring is rigid metal ring.
Preferably, described push rod side is chromium plating smooth layer.
Technique effect of the present utility model and advantage: this piston sealing device, permissible by the first roller and the second roller
Ensure that the friction between sealing ring and baffle plate and fixing baffle ring reduces, rolling friction can be changed into from sliding friction, and keep off
Threaded between plate and push rod, very convenient sealing ring is changed, work when, mobile putter, due to push rod
Side is polished chrome layer, can greatly reduce frictional force it is ensured that sealing ring may be rotated, sliding friction is switched to
Rolling friction, decreases the abrasion of sealing ring, extends its service life.Therefore, this utility model is reasonable in design, work when
Wait it is ensured that sealing ring may be rotated, such that it is able to reduce the abrasion of sealing ring, extend service life, and side
Just change, have very high practicality.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the first roller of the present utility model and the second roller structure schematic diagram.
In figure: 1 cylinder body, 2 baffle plates, 3 sealing rings, 4 fixing baffle rings, 5 push rods, 6 first rollers, 7 second rollers, 8 connectors,
9 outer shrouds, 10 internal ring.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
This utility model provides a kind of piston sealing device as shown in Figure 1-2, including cylinder body 1, inside described cylinder body 1
It is provided with push rod 5, described push rod 5 end is fixedly connected with baffle plate 2, described push rod 5 side wall is fixed with fixing baffle ring 4, described gear
Plate 2 is rotatably connected to the first roller 6 near the side of fixing baffle ring 4 by connector 8, and described fixing baffle ring 4 is near baffle plate 2
Side is rotatably connected to the second roller 7 by connector 8, and described first roller 6 and the second roller 7 all rotate even with sealing ring 3
Connect, the inner surface of described sealing ring 3 and cylinder body 1 and the side of push rod 5 are bonded to each other.
Further, threaded between described push rod 5 end and baffle plate 2, it is threaded connection and can facilitate baffle plate 2
Dismounting, changes to sealing ring 3 such that it is able to convenient.
Further, described first roller 6 and the second roller 7 all include outer shroud 9 and internal ring 10, by outer shroud 9 and internal ring
10 different structures, it is possible to achieve outer shroud 9 is flexible material, and internal ring 10 is rigid material, thereby may be ensured that the first roller 6
While normally rolling with the second roller 7, the contact surface between the first roller 6 and the second roller 7 and sealing ring 3 can also be accomplished
Long-pending increase, increases frictional force so as to preferably rotate.
Further, described outer shroud 9 is elastic wear-resisting rubber ring, and described internal ring 10 is rigid metal ring, by wear-resisting
Rubber ring and rigid metal ring be not it is ensured that while normally rolling, also affect soft required for outer shroud 9.
Further, described push rod 5 side is chromium plating smooth layer, can reduce friction by chromium plating smooth layer.
This piston sealing device, can ensure that sealing ring 3 and baffle plate 2 by the first roller 6 and the second roller 7 and fixes
Friction between baffle ring 4 reduces, and can be changed into rolling friction from sliding friction, and threaded between baffle plate 2 and push rod 5,
Very convenient sealing ring 3 is changed, work when, mobile putter 5, due to push rod 5 side be polished chrome layer, can
To greatly reduce frictional force it is ensured that sealing ring 3 may be rotated, sliding friction is switched to rolling friction, decrease close
The abrasion of seal 3, extends its service life.Therefore, this utility model is reasonable in design, it is ensured that sealing when work
Circle may be rotated, and such that it is able to reduce the abrasion of sealing ring, extends service life, and is convenient for changing, and has very high
Practicality.
Finally it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this
Utility model, although being described in detail to this utility model with reference to the foregoing embodiments, for those skilled in the art
For, it still can be modified to the technical scheme described in foregoing embodiments, or to wherein some technical characteristics
Carry out equivalent, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement made etc., all
Should be included within protection domain of the present utility model.
Claims (5)
1. a kind of piston sealing device, including cylinder body (1) it is characterised in that: is provided with push rod (5) inside described cylinder body (1), described
Push rod (5) end is fixedly connected with baffle plate (2), and described push rod (5) side wall is fixed with fixing baffle ring (4), and described baffle plate (2) is leaned on
The side of closely fixing baffle ring (4) is rotatably connected to the first roller (6) by connector (8), and described fixing baffle ring (4) is near baffle plate
(2) side is rotatably connected to the second roller (7) by connector (8), described first roller (6) and the second roller (7) all with
Sealing ring (3) rotates and connects, and the inner surface of described sealing ring (3) and cylinder body (1) and the side of push rod (5) are bonded to each other.
2. a kind of piston sealing device according to claim 1 it is characterised in that: described push rod (5) end and baffle plate (2)
Between threaded.
3. a kind of piston sealing device according to claim 1 it is characterised in that: described first roller (6) and second rolling
Wheel (7) all includes outer shroud (9) and internal ring (10).
4. a kind of piston sealing device according to claim 3 it is characterised in that: described outer shroud (9) be elastic wear-resisting rubber
Glue ring, and described internal ring (10) is rigid metal ring.
5. a kind of piston sealing device according to claim 1 it is characterised in that: described push rod (5) side be chromium plating light
Slip layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620640800.4U CN205908747U (en) | 2016-06-25 | 2016-06-25 | Piston seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620640800.4U CN205908747U (en) | 2016-06-25 | 2016-06-25 | Piston seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205908747U true CN205908747U (en) | 2017-01-25 |
Family
ID=57812517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620640800.4U Expired - Fee Related CN205908747U (en) | 2016-06-25 | 2016-06-25 | Piston seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205908747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116447A (en) * | 2018-11-14 | 2019-01-01 | 李成代 | A kind of rainfall tester suitable for remote mountain areas |
| CN109116446A (en) * | 2018-11-14 | 2019-01-01 | 李成代 | A kind of mountain area rainfall test method |
-
2016
- 2016-06-25 CN CN201620640800.4U patent/CN205908747U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116447A (en) * | 2018-11-14 | 2019-01-01 | 李成代 | A kind of rainfall tester suitable for remote mountain areas |
| CN109116446A (en) * | 2018-11-14 | 2019-01-01 | 李成代 | A kind of mountain area rainfall test method |
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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: 20170125 Termination date: 20170625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |