CN206786191U - A kind of external sealing device of telescoping tube - Google Patents
A kind of external sealing device of telescoping tube Download PDFInfo
- Publication number
- CN206786191U CN206786191U CN201720332924.0U CN201720332924U CN206786191U CN 206786191 U CN206786191 U CN 206786191U CN 201720332924 U CN201720332924 U CN 201720332924U CN 206786191 U CN206786191 U CN 206786191U
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- China
- Prior art keywords
- sealing ring
- sealing
- tube
- outer tube
- hierarchic structure
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Abstract
The utility model discloses a kind of external sealing device of telescoping tube, the telescoping tube includes inner and outer tubes, and inner tube is set in outer tube and one end of the extended outer tube in one end of inner tube, one end of the outer tube are provided with sealing device, it is characterised in that：The sealing device is arranged on the outer end of outer tube, the sealing device includes the sealing ring chamber being connected with outer tube outer end and is arranged on the sealing ring in sealing ring chamber with inflation inner chamber, the sealing ring chamber is provided with opening towards inner tube side, after sealing ring inflation, sealing ring holds inner tube by the opening, gap between inner tube and outer tube is sealed, the sealing ring chamber is provided with the window connected with sealing ring intracavitary portion for changing sealing ring.The utility model is simple in construction, is easy to dismount and changes, the working condition of sealing ring from being easy to intuitively from outside.
Description
Technical field
A kind of sealing device is the utility model is related to, especially a kind of external sealing device of telescoping tube.
Background technology
The extensive use in a variety of plant equipment of inflation sealing ring, but traditional sealing ring is mostly hollow envelope
Enclosed circular ring structure.In the prior art, drainage car, fire fighting truck etc. need to extend to pipeline into the plant equipment of specified location
On, in order to the length of flexible control piper, it is typically necessary using the telescoping tube being made up of outer tube and inner tube, outer tube and interior
Sealing ring is provided between pipe, existing sealing ring is mainly disposed to the medial surface of outer tube, however, sealing ring is a kind of consumable accessory,
Need often to change, the especially installation in large-scale, cumbersome apparatus is more cumbersome with changing program, and workload is big, and work is strong
Degree is high, and disassembling, assembling and replacing is extremely inconvenient, and the medial surface that sealing ring is arranged on outer tube is only suitable for making in outer tube and larger interior ligament
With, when the gap between outer tube and inner tube is smaller, sealing ring is installed in the medial surface of outer tube and just seems highly difficult, Er Qiemi
Seal is arranged on the inside of outer tube, and the use state of sealing ring can not be observed from outside, and to the sealing effectiveness of sealing ring
Also can not intuitively judge.
The content of the invention
In order to solve deficiency of the prior art, the purpose of this utility model is to provide a kind of simple in construction, is easy to tear open
Dress and replacing, the external sealing device of the telescoping tube of sealing ring working condition from being easy to from outside.
To achieve the above object, the utility model uses following technical scheme：
A kind of external sealing device of telescoping tube, the telescoping tube include inner and outer tubes, and inner tube is set in outer tube and interior
One end of the extended outer tube in one end of pipe, one end of the outer tube are provided with sealing device, it is characterised in that：The sealing device is set
Put in the outer end of outer tube, the sealing device includes the sealing ring chamber being connected with outer tube outer end and is arranged in sealing ring chamber
Sealing ring with inflation inner chamber, the sealing ring chamber are provided with opening, sealing ring towards the gap direction between inner tube and outer tube
After inflation, sealing ring tightly surrounds the gap between inner tube and outer tube by the opening, to the gap between inner tube and outer tube
Sealed, circular arc cavity of the sealing ring chamber including two or more both ends open is centered around outer tube outer end and installs to be formed
Annular seal ring chamber, the sealing ring chamber are provided with the window connected with sealing ring intracavitary portion for changing sealing ring.
The side of the sealing ring chamber is provided with mounting ear, and sealing ring chamber is arranged on one end of outer tube by mounting ear.
The window is provided with window cover, and the window cover is provided with the mounting hole that sealing ring fills exhaust nozzle.
The sealing ring is the open circular ring structure of entirety with inflation inner chamber, and sealing ring both ends are correspondingly provided with shape phase
The first hierarchic structure and the second hierarchic structure of adaptation, first hierarchic structure and the second hierarchic structure are respectively provided with a high step
Face and a low step surface, a plug, the first rank are equipped with the low step surface of first hierarchic structure and the second hierarchic structure
The slot of grafting corresponding with plug, the plug and slot grafting are equipped with the high step surface of terraced structure and the second hierarchic structure
Afterwards, sealing ring forms closed circular ring structure.
The sealing ring is that some sections of sealing strips with inflation inner chamber join end to end the circular ring structure to be formed, every section of sealing
Bar both ends are correspondingly provided with the first hierarchic structure and the second hierarchic structure that shape is adapted, first hierarchic structure and second-order
Terraced structure is respectively provided with a high step surface and a low step surface, on the low step surface of first hierarchic structure and the second hierarchic structure
It is equipped with a plug, inserting for grafting corresponding with plug is equipped with the high step surface of the first hierarchic structure and the second hierarchic structure
After groove, the plug and slot grafting, sealing ring forms closed circular ring structure, and the junction of two sealing strips is communicated with two and filled
The valve of gas inner chamber.
The utility model uses above technical scheme, and sealing device is arranged on to the outer end of outer tube, set on sealing ring chamber
There is mounting ear, sealing ring chamber is arranged on the outer end of outer tube by mounting ear, can thus be realized internally in the outside of outer tube
Sealing between pipe and outer tube, operator can be with the sealing state between Real Time Observation inner tube and outer tube, while sealing device is set
The installation and replacing in the outside of outer tube, being also convenient for sealing ring are put, sealing ring chamber is surrounded by several sections, in the draining that caliber is larger
When sealing ring chamber is installed on pipe, sealing ring chamber can use segmentation installation so that easier for installation, the sealing ring of sealing ring chamber
It can also be made up of several sections of sealing strips, it is more convenient for installing sealing ring on the larger telescoping tube of caliber.
Brief description of the drawings
The utility model is described in further details below in conjunction with the drawings and specific embodiments：
Fig. 1 is a kind of structural representation of the external sealing device of telescoping tube of the utility model；
Fig. 2 is the sectional view that the utility model does not place sealing ring；
Fig. 3 is that the utility model places the sectional view after sealing ring；
Fig. 4 is the axial view of the embodiment of the utility model one；
Fig. 5 is the axial view of another embodiment of the utility model；
Fig. 6 is the structural representation of the embodiment of the utility model sealing ring one；
Fig. 7 is the structural representation of another embodiment of the utility model sealing ring；
Fig. 8 is the structural representation of another embodiment of the utility model sealing ring.
Embodiment
As shown in one of accompanying drawing 1-3, the utility model includes inner tube 1 and outer tube 2, and inner tube 1 is set in outer tube 2 and inner tube
One end of the 1 extended outer tube 2 in one end, one end of the outer tube are provided with sealing device 3, and the sealing device 3 is arranged on outer tube
Outer end, the sealing device 3 includes the sealing ring chamber 31 that is connected with outer tube outer end and is arranged in sealing ring chamber 31 to have
There is the sealing ring 32 of inflation inner chamber, the chamber of sealing ring 32 is provided with opening 311 towards the gap direction between inner tube and outer tube, close
After the inflation of seal 32, sealing ring 32 tightly surrounds the gap between inner tube 1 and outer tube 2 by the opening 311, to inner tube 1 with
Gap between outer tube 2 is sealed, and circular arc cavity of the sealing ring chamber including two or more both ends open is centered around outer
Install to form annular seal ring chamber in pipe outer end；
As shown in Figure 4, in a preferred embodiment, sealing ring chamber 31 includes the circular arc cavity of two both ends opens
31a is centered around the outer end of outer tube 2 and installs to form annular seal ring chamber；
As shown in Figure 5, in a preferred embodiment, sealing ring chamber 31 includes the circular arc cavity of three both ends opens
31b is centered around the outer end of outer tube 2 and installs to form annular seal ring chamber.
As shown in accompanying drawing 1 or 6, the sealing ring chamber 3 is provided with and connected with sealing ring intracavitary portion for changing sealing ring
Window 4.The window is provided with window cover, and the window cover is provided with the mounting hole 41 that sealing ring fills exhaust nozzle 9.The sealing
The side of circle chamber is provided with mounting ear 5, and sealing ring chamber is arranged on one end of outer tube by mounting ear 5.
As shown in Figure 6, the sealing ring 32 is with the open circular ring structure of entirety for inflating inner chamber, sealing ring both ends
It is correspondingly provided with the first hierarchic structure and the second hierarchic structure that shape is adapted, first hierarchic structure and the second hierarchic structure
A high step surface and a low step surface are respectively provided with, is equipped with the low step surface of first hierarchic structure and the second hierarchic structure
The slot 7 of grafting corresponding with plug is equipped with the high step surface of one plug 6, the first hierarchic structure and the second hierarchic structure, is inserted
First 6 size can be slightly larger than the size of slot 7 so that and the connection of plug and slot more fastens, after the plug 6 and the grafting of slot 7,
Sealing ring 32 forms closed circular ring structure.
As shown in accompanying drawing 7 or 8, the sealing ring is that some sections of sealing strips with inflation inner chamber join end to end the circle to be formed
Ring structure, every section of sealing strip both ends are correspondingly provided with the first hierarchic structure and the second hierarchic structure that shape is adapted, and described first
Hierarchic structure and the second hierarchic structure are respectively provided with a high step surface and a low step surface, first hierarchic structure and the second ladder
Be equipped with a plug 6 on the low step surface of structure, be equipped with the high step surface of the first hierarchic structure and the second hierarchic structure with
Plug corresponds to the slot 7 of grafting, and the size of plug 6 can be slightly larger than the size of slot 7 so that and the connection of plug and slot more fastens,
After the plug 6 and the grafting of slot 7, sealing ring forms closed circular ring structure, and the junction of two sealing strips is communicated with two and filled
The valve 8 of gas inner chamber；
As shown in Figure 7, in a preferred embodiment, sealing ring is two sections of sealing strip 32a head and the tail with inflation inner chamber
The circular ring structure being connected to form；
As shown in Figure 8, in a preferred embodiment, sealing ring is three sections of sealing strip 32b head and the tail with inflation inner chamber
The circular ring structure being connected to form.
Sealing device is arranged on the outer end of outer tube by the utility model, and sealing ring chamber is provided with mounting ear, sealing ring chamber
The outer end of outer tube is arranged on by mounting ear, can thus be realized in the outside of outer tube to close between inner tube and outer tube
Envelope, operator can be with the sealing state between Real Time Observation inner tube and outer tube, while sealing device is arranged on the outside of outer tube,
Convenient installation and replacing to sealing ring, sealing ring chamber are surrounded by several sections, and sealing ring chamber is installed on the larger drainpipe of caliber
When, sealing ring chamber can use segmentation installation so that sealing ring chamber it is easier for installation, sealing ring can also by several sections sealing
Bar forms, more convenient for installing sealing ring on the larger telescoping tube of caliber.
Claims (6)
1. a kind of external sealing device of telescoping tube, the telescoping tube includes inner and outer tubes, and inner tube is set in outer tube and inner tube
The extended outer tube in one end one end, one end of the outer tube is provided with sealing device, it is characterised in that：The sealing device is set
In the outer end of outer tube, the sealing device includes the sealing ring chamber being connected with outer tube outer end and is arranged in sealing ring chamber to have
There is the sealing ring of inflation inner chamber, the sealing ring chamber is provided with opening towards the gap direction between inner tube and outer tube, and sealing ring fills
After gas expansion, sealing ring tightly surrounds the gap between inner tube and outer tube by the opening, and the gap between inner tube and outer tube is entered
Row sealing, the sealing ring chamber are provided with the window connected with sealing ring intracavitary portion for changing sealing ring.
A kind of 2. external sealing device of telescoping tube according to claim 1, it is characterised in that：The sealing ring chamber bag
The circular arc cavity for including two or more both ends open is centered around outer tube outer end and installs to form annular seal ring chamber.
A kind of 3. external sealing device of telescoping tube according to claim 1, it is characterised in that：The side of the sealing ring chamber
Provided with mounting ear, sealing ring chamber is arranged on one end of outer tube by mounting ear.
A kind of 4. external sealing device of telescoping tube according to claim 1, it is characterised in that：The window is provided with window
Cover, the window cover are provided with the mounting hole that sealing ring fills exhaust nozzle.
A kind of 5. external sealing device of telescoping tube according to claim 1, it is characterised in that：The sealing ring is with filling
The open circular ring structure of entirety of gas inner chamber, sealing ring both ends are correspondingly provided with the first hierarchic structure and the second-order that shape is adapted
Terraced structure, first hierarchic structure and the second hierarchic structure are respectively provided with a high step surface and a low step surface, first rank
The plateau of a plug, the first hierarchic structure and the second hierarchic structure is equipped with the low step surface of terraced structure and the second hierarchic structure
Be equipped with the slot of grafting corresponding with plug on terrace, the plug with after slot grafting, sealing ring forms closed annulus knot
Structure.
A kind of 6. external sealing device of telescoping tube according to claim 1, it is characterised in that：The sealing ring is some sections
Sealing strip with inflation inner chamber joins end to end the circular ring structure to be formed, and every section of sealing strip both ends are correspondingly provided with what shape was adapted
First hierarchic structure and the second hierarchic structure, first hierarchic structure and the second hierarchic structure are respectively provided with a high step surface and one
Low step surface, a plug, the first hierarchic structure are equipped with the low step surface of first hierarchic structure and the second hierarchic structure
It is close after the plug and slot grafting with the slot that grafting corresponding with plug is equipped with the high step surface of the second hierarchic structure
Seal forms closed circular ring structure, and the junction of two sealing strips is communicated with the valve of two inflation inner chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332924.0U CN206786191U (en) | 2017-03-31 | 2017-03-31 | A kind of external sealing device of telescoping tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332924.0U CN206786191U (en) | 2017-03-31 | 2017-03-31 | A kind of external sealing device of telescoping tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786191U true CN206786191U (en) | 2017-12-22 |
Family
ID=60705724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720332924.0U Ceased CN206786191U (en) | 2017-03-31 | 2017-03-31 | A kind of external sealing device of telescoping tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206786191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591478A (en) * | 2018-05-15 | 2018-09-28 | 江苏海川卓越密封材料有限公司 | A kind of sealing element docking oil sealing for mechanical oil pipe |
-
2017
- 2017-03-31 CN CN201720332924.0U patent/CN206786191U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591478A (en) * | 2018-05-15 | 2018-09-28 | 江苏海川卓越密封材料有限公司 | A kind of sealing element docking oil sealing for mechanical oil pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20210415 Decision number of declaring invalidation: 48523 Granted publication date: 20171222 |
|
| IW01 | Full invalidation of patent right |