CN206145128U - Linkage type combination sealing element - Google Patents
Linkage type combination sealing element Download PDFInfo
- Publication number
- CN206145128U CN206145128U CN201621063696.3U CN201621063696U CN206145128U CN 206145128 U CN206145128 U CN 206145128U CN 201621063696 U CN201621063696 U CN 201621063696U CN 206145128 U CN206145128 U CN 206145128U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- seal
- sealing
- type combination
- linkage type
- 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
Present high pressure oil seal can directly become violent impact to O type cast when high -pressure fluid process, can enclose the O type even and directly wash out, because of lacking sealing up of O type circle, directly results in fluid to leak when sealed position is got back to to the dabber. A linkage type combination sealing element, includes quick -operation joint casing, seal, dabber, dabber cavity, netted wall, and its characteristics lie in that quick -operation joint casing afterbody is equipped with the step, and the step outside is equipped with the screw thread of connecting oil pipeline, quick -operation joint shells inner wall is equipped with the seal, and the seal is inboard, quick -operation joint casing center fixedly connected with dabber, and the junction of seal and dabber is equipped with reset spring, and during the use, high -pressure oil stream assaults sealed spherical valve, the down compression spring of sealed spherical valve, and the guide post pushes the offset plate down, shrink downwards in the middle of the offset plate, the impact of high -pressure oil stream is avoided receiving by O type circle withdrawal ditch inslot.
Description
Technical field
This utility model is related to field of sealing technology, especially a kind of linkage type combination seal, its be applied to sealing and
The higher liquid of reliability requirement, gas transport field.
Background technology
At present, sealing ring is the conventional sealing means of hydro-pneumatic field, and existing single seal form is more and more not yet
The requirement of modern machines equipment is adapted to, and needs to research and develop a kind of new sealing means modern machines equipment to be adapted to sealing
Require, to improve its sealing and reliability.
During working condition, seal is subject to ready-packaged joint " female end " axial thrust and slides inwards, exposes mandrel and core
4 oil leak holes for interpenetrating on axle, high-voltage oil liquid is in mandrel cavity by 4 oil leak holes for interpenetrating on mandrel, height
Speed injection ready-packaged joint housing, now high-voltage oil liquid can directly to O-ring formation severe impact, and O-ring lacks protection, or even meeting
O-ring is directly washed out, when mandrel returns to sealing station because lacking the sealing of O-ring, oil liquid leakage is directly resulted in, so as to lead
Cause O-ring seal failure in resting state.
Additionally, the sealing globe valve inside mandrel dislocation, off normal easily occurs in the impact of high-pressure oil flow, needs add dress
Put guarantee sealing globe valve and can be in vertical state all the time, it is ensured that sealing when static, and use rear timely proper reset.
The content of the invention
For the problems referred to above, this utility model provides a kind of linkage type combination seal, can bear hydraulic oil well
The impact of stream, so as to effectively prevent sealing member because impact causes situation about coming off to occur, realizes static state and dynamic well
Sealing property.For achieving the above object, this utility model is designed with following manner is carried out：
A kind of linkage type combination seal, including snap joint housing, seal, mandrel, mandrel cavity, netted wall, its
Feature is that snap joint housing afterbody is provided with step, and the screw thread of connection oil pipeline is provided with outside step；Snap joint housing
Inwall is provided with seal, on the inside of seal, snap joint casing center be fixedly connected with the junction of mandrel, seal and mandrel
It is provided with back-moving spring, back-moving spring center is provided with the lead column for preventing displacement, the sliding cavity that back-moving spring is placed on the inside of seal,
Sliding cavity bottom is fixed in back-moving spring bottom, and back-moving spring top passes through cross bar connecting mandrel top；
It is cavity structure inside mandrel, on the side wall of mandrel cavity, is radially provided with 4 netted walls for interpenetrating, netted wall
Medial surface be arc, be provided between the netted wall of relative arc ellipse sealing globe valve, seal globe valve both sides arc top
It coincide with the inner arc of netted wall, sealing globe valve is connected with return spring with mandrel top, and return spring is tapered, return spring
Top be fixed in the cavity of sealing globe valve bottom, mandrel top is fixed in the bottom of return spring, in return spring
Heart position is provided with lead column, and mandrel top is provided with guide pipe, guide pipe bottom UNICOM interface channel, lead column bottom connection glue
Plate；
Mandrel front end outer side shoulder is provided with rectangular seal groove, and O-ring, the rectangle of opposite side are provided with rectangular seal groove
Interface channel is provided between sealed groove, the resilient hectograph of connection O-ring in interface channel, is provided with, the two ends of offset plate are fixed on
O-ring.
Preferably, the length of the lead column is less than interface channel and the length for sealing arc top on the downside of globe valve.
Preferably, the O-ring and netted wall are shifted to install.
Preferably, the O-ring is hollow sealing ring.
Preferably, O-ring of the O-ring for NBR materials.
Preferably, the width of the sealing globe valve is more than mandrel cavity inside diameter, less than the external diameter of mandrel cavity.
Preferably, height of the height of the sealing globe valve more than the netted wall of arc.
Preferably, lateral length of the summation of the offset plate and two O type loop diameters not less than mandrel.
The beneficial effects of the utility model are：Compared with prior art, oil leak hole is changed to netted wall, sealing effect by this technology
Fruit is more preferably：First, seal globe valve and the netted wall of arc is used cooperatively, seamless cooperation when static, constantly oil stream will be spherical close for dynamic
Envelope valve pushes cavity bottom to, and oil stream is flowed out by netted wall；When the 2nd, using, high-pressure oil flow impact sealing globe valve seals globe valve
Descending compression spring, the descending extruding offset plate of lead column, retracted downward in the middle of offset plate, in O-ring retraction groove, it is to avoid by high pressure
The impact of oil stream, safety coefficient are higher, so as to effectively prevent sealing member because impact causes situation about coming off to occur.
Description of the drawings
Fig. 1 is cross-sectional view of the present utility model；
Labelling in figure：1- snap joint housings；2- seals；3- mandrels；4- oil leak holes；5-O type circles；6- interface channels；
7- seals globe valve；8- back-moving springs；9- lead columns；10- guide pipes.
Specific embodiment
Embodiment 1：
As shown in drawings, be this invention standstill seal state, O type circles（NBR materials）It is wrapped in bracing ring
（PTFE3 materials）In form a seal combination body, component plays good sealing property；Now, the length of offset plate and two O
Lateral length of the summation of the diameter of type circle more than mandrel.
During use, seal is subject to ready-packaged joint " female end " axial thrust and slides inwards, and on mandrel and mandrel, 4 mutually
The netted wall for connecting exposes, high-pressure oil flow impact sealing globe valve, and high-voltage oil liquid is in mandrel cavity by netted wall, sealing
The descending compression spring of globe valve, the descending extruding offset plate of lead column, retracted downward in the middle of offset plate, in O-ring retraction groove, it is to avoid receive
To the impact of high-pressure oil flow, safety coefficient is higher, so as to effectively prevent sealing member because impact causes situation about coming off to occur.
After terminating, i.e., high-pressure oil flow halted state when, seal loses the oil flow pressure at ready-packaged joint " female end ",
Resetted by suction function and back-moving spring, the spherical seal for being compressed resets, block netted wall and keep sealing；While by
Diminish in pressure, O-ring volume becomes pushes L-type support seal to seal greatly, plays sealing function.
Furthermore, it is necessary to explanation, offset plate only needs to deform upon, and without the need for the explanation of special material, but need to reach
To it is static when not deformation, receiving lead column has deformation when pressing pressure, and common colloid sheet material all has above-mentioned characteristic.The receipts of offset plate
Contracting amount need to have the length of an O type loop diameter.
Claims (8)
1. a kind of linkage type combination seal, including snap joint housing, seal, mandrel, mandrel cavity, netted wall, which is special
Point is that snap joint housing afterbody is provided with step, and the screw thread of connection oil pipeline is provided with outside step；In snap joint housing
Wall is provided with seal, and on the inside of seal, snap joint casing center is fixedly connected with the junction of mandrel, seal and mandrel and sets
There is back-moving spring, back-moving spring center is provided with the lead column for preventing displacement, and the sliding cavity that back-moving spring is placed on the inside of seal is multiple
Position spring bottom end is fixed on sliding cavity bottom, and back-moving spring top passes through cross bar connecting mandrel top；
Be cavity structure inside mandrel, on the side wall of mandrel cavity, be radially provided with 4 netted walls for interpenetrating, netted wall it is interior
Side is arc, and the sealing globe valve of ellipse is provided between the netted wall of relative arc, seals both sides arc top and the net of globe valve
The inner arc of shape wall coincide, and sealing globe valve is connected with return spring with mandrel top, and return spring is tapered, the top of return spring
End is fixed in the cavity of sealing globe valve bottom, and mandrel top, the centre bit of return spring are fixed in the bottom of return spring
Lead column is installed, mandrel top is provided with guide pipe, guide pipe bottom UNICOM interface channel, lead column bottom connection offset plate；
Mandrel front end outer side shoulder is provided with rectangular seal groove, and O-ring, the rectangular seal of opposite side are provided with rectangular seal groove
Interface channel is provided between groove, the resilient hectograph of connection O-ring in interface channel, is provided with, the two ends of offset plate are fixed on O-shaped
Circle.
2. a kind of linkage type combination seal according to claim 1, it is characterised in that the length of the lead column is less than
Interface channel and the length for sealing arc top on the downside of globe valve.
3. a kind of linkage type combination seal according to claim 1, it is characterised in that the O-ring and netted wall are wrong
Position is arranged.
4. a kind of linkage type combination seal according to claim 1, it is characterised in that the O-ring is hollow close
Seal.
5. a kind of linkage type combination seal according to claim 1, it is characterised in that the O-ring is NBR materials
O-ring.
6. a kind of linkage type combination seal according to claim 1, it is characterised in that the width of the sealing globe valve
More than mandrel cavity inside diameter, less than the external diameter of mandrel cavity.
7. a kind of linkage type combination seal according to claim 1, it is characterised in that the height of the sealing globe valve
More than the height of the netted wall of arc.
8. a kind of linkage type combination seal according to claim 1, it is characterised in that the offset plate and two O type circles
Lateral length of the summation of diameter not less than mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621063696.3U CN206145128U (en) | 2016-09-20 | 2016-09-20 | Linkage type combination sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621063696.3U CN206145128U (en) | 2016-09-20 | 2016-09-20 | Linkage type combination sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206145128U true CN206145128U (en) | 2017-05-03 |
Family
ID=58619113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621063696.3U Expired - Fee Related CN206145128U (en) | 2016-09-20 | 2016-09-20 | Linkage type combination sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206145128U (en) |
-
2016
- 2016-09-20 CN CN201621063696.3U patent/CN206145128U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180629 Address after: 529095 2 28 West Road two road, lotus town, Jiangmen, Guangdong Patentee after: JIANGMEN CITY PENGJIANG DISTRICT HETANG WEIRUN RUBBER Co.,Ltd. Address before: 510000 Guangdong science and Technology Industrial Development Zone, Guangzhou, 231 and 233 podium B1B2 Building 1, two, three, four Patentee before: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Effective date of registration: 20180629 Address after: 510000 Guangdong science and Technology Industrial Development Zone, Guangzhou, 231 and 233 podium B1B2 Building 1, two, three, four Patentee after: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Address before: 362100 new pavilion Village, Tu Zhai Town, Huian, Quanzhou, Fujian Patentee before: HUIAN CANXIN NEW MATERIAL TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20190920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |