CN207195654U - A kind of valve seal packing ring - Google Patents
A kind of valve seal packing ring Download PDFInfo
- Publication number
- CN207195654U CN207195654U CN201721053649.5U CN201721053649U CN207195654U CN 207195654 U CN207195654 U CN 207195654U CN 201721053649 U CN201721053649 U CN 201721053649U CN 207195654 U CN207195654 U CN 207195654U
- Authority
- CN
- China
- Prior art keywords
- packing ring
- valve
- limited block
- valve seal
- utility
- 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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- Gasket Seals (AREA)
- Sealing Devices (AREA)
- Details Of Valves (AREA)
Abstract
The utility model provides a kind of valve seal packing ring, more particularly to valve manufacture field, including valve body, the interface of the valve body is provided with seal washer, the seal washer includes the first packing ring and second packing ring, the top of first packing ring is taper, the bottom of the second packing ring and the top of first packing ring are mutually agreed with, the second packing ring is sheathed on above first packing ring, the top peripheral surface of first packing ring is located at some limited blocks, and the lower inner wall surface of the second packing ring is provided with the stopper slot to match with the limited block.The utility model is hardly damaged, service life length, can improve the sealing of valve.
Description
Technical field
The utility model belongs to valve manufacture field, and in particular to a kind of valve seal packing ring.
Background technology
The sealing of valve is one of important performance indexes of valve, the interface of valve generally use seal washer with
Sealing, but traditional seal washer are improved, the ring spacer of an entirety is commonly, due to fluid impingement force at valve interface
Degree is big, and such conventional seals packing ring is fragile, causes the leakage of valve.
For above-mentioned deficiency, a kind of valve seal packing ring is now needed, is hardly damaged, service life length, to improve valve
Sealing.
Utility model content
The purpose of this utility model provides a kind of valve seal packing ring, is hardly damaged, service life length, to improve valve
Sealing.
The utility model provides following technical scheme：
A kind of valve seal packing ring, including valve body, the interface of the valve body are provided with seal washer, the seal washer bag
The first packing ring and second packing ring are included, the top of first packing ring is taper, the bottom of the second packing ring and the described first pad
The top of circle is mutually agreed with, and the second packing ring is sheathed on above first packing ring, the top peripheral surface of first packing ring
Located at some limited blocks, the lower inner wall surface of the second packing ring is provided with the stopper slot to match with the limited block.
Preferably, first packing ring includes fluororubber layer and polytetrafluoroethylene gasket, and the fluororubber layer is coated on poly-
Tetrafluoroethene packing ring periphery.
Preferably, the second packing ring also includes fluororubber layer and polytetrafluoroethylene gasket, and the fluororubber layer is coated on
Polytetrafluoroethylene gasket periphery.
Preferably, the limited block circular row is in the top peripheral surface of first packing ring.
Preferably, the spacing number of blocks is 6 to 10.
Preferably, in the fluororubber layer, the limited block is integrally formed the limited block with the fluororubber layer.
The beneficial effects of the utility model：
(1) it is different from traditional integral seal circle, the utility model uses separation design, passes through the first packing ring and
The superposition of two packing rings, can reinforced gasket intensity, improve the service life of pad；
(2) the utility model is mutually agreed with by the taper on the first packing ring top and the bottom of second packing ring, and by spacing
The matching of block and stopper slot, can be by the first packing ring and the spacing raising fixing of second packing ring, and then ensures the seal of packing ring.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the utility model front view；
Fig. 2 is the utility model structure chart；
Fig. 3 is the utility model structure upward view；
Fig. 4 is the utility model top view.
In figure mark for：1st, valve body；2nd, seal washer；21st, the first packing ring；22nd, second packing ring；23rd, limited block；24th, limit
Position groove；3rd, polytetrafluoroethylene gasket；4th, fluororubber layer.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of valve seal packing ring, including valve body 1, the interface of valve body 1 is provided with close
Seal washer 2, seal washer 2 include the first packing ring 21 and second packing ring 22, and the top of the first packing ring 21 is taper, second packing ring 22
Bottom and the top of the first packing ring 21 mutually agree with, second packing ring 22 is sheathed on the top of the first packing ring 21, the first packing ring 21 it is upper
Portion's peripheral surface is located at some limited blocks 23, and the lower inner wall surface of second packing ring 33 is spacing provided with matching with limited block 23
Groove 24；Different from traditional integral seal circle, the utility model uses separation design, passes through the first packing ring 21 and the second pad
The superposition of circle 22, can reinforced gasket intensity, improve the service life of pad；Pass through the taper and second on the top of the first packing ring 21
The bottom of packing ring 22 is mutually agreed with, and by the matching of limited block 23 and stopper slot 24, can be by the first packing ring 21 and second packing ring 22
Spacing raising fixing, and then ensure the seal of packing ring；
Wherein, the first packing ring 21 includes fluororubber layer 4 and polytetrafluoroethylene gasket 3, and fluororubber layer 3 is coated on polytetrafluoroethyl-ne
The periphery of alkene packing ring 3；Second packing ring 22 also includes fluororubber layer 3 and polytetrafluoroethylene gasket 3, and fluororubber layer 3 is coated on polytetrafluoro
The periphery of ethene packing ring 3.Fluorubber is corrosion-resistant, good toughness；Polytetrafluoroethylene (PTFE) is corrosion-resistant strong, because fluorubber cost is high, using poly-
Tetrafluoroethene liner, the sealing and service life of product were both can ensure that, production cost can be reduced again；
Wherein, for the circular row of limited block 23 in the top peripheral surface of the first packing ring 21, the quantity of limited block 23 is 6 to 10, this
The matching that the limited block 23 of structure can consolidate with stopper slot 24, it is ensured that the seal of packing ring；Limited block 23 is located at fluororubber layer 4
On, limited block 23 is integrally formed with fluororubber layer 4, is integrally formed the service life and strong degree that can improve device.
The advantages of the utility model：
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, separate type is used different from traditional integral seal circle, the utility model
Design, by the superposition of the first packing ring 21 and second packing ring 22, can reinforced gasket intensity, improve the service life of pad；It is logical
Cross the taper on the top of the first packing ring 21 with the bottom of second packing ring 22 mutually to agree with, and pass through of limited block 23 and stopper slot 24
Match somebody with somebody, can be by the first packing ring 21 and the spacing raising fixing of second packing ring 22, and then ensure the seal of packing ring.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, although ginseng
The utility model is described in detail according to previous embodiment, for those skilled in the art, it still can be with
Technical scheme described in foregoing embodiments is modified, or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., this practicality should be included in
Within new protection domain.
Claims (6)
- A kind of 1. valve seal packing ring, it is characterised in that：Including valve body, the interface of the valve body is provided with seal washer, described Seal washer includes the first packing ring and second packing ring, and the top of first packing ring is taper, the bottom of the second packing ring with The top of first packing ring is mutually agreed with, and the second packing ring is sheathed on above first packing ring, first packing ring it is upper Portion's peripheral surface is located at some limited blocks, and the lower inner wall surface of the second packing ring is provided with the limit to match with the limited block Position groove.
- A kind of 2. valve seal packing ring according to claim 1, it is characterised in that：First packing ring includes fluororubber layer And polytetrafluoroethylene gasket, the fluororubber layer are coated on polytetrafluoroethylene gasket periphery.
- A kind of 3. valve seal packing ring according to claim 1, it is characterised in that：The second packing ring also includes fluorubber Layer and polytetrafluoroethylene gasket, the fluororubber layer are coated on polytetrafluoroethylene gasket periphery.
- A kind of 4. valve seal packing ring according to claim 1, it is characterised in that：The limited block circular row is in described first The top peripheral surface of packing ring.
- A kind of 5. valve seal packing ring according to claim 4, it is characterised in that：The spacing number of blocks is 6 to 10.
- A kind of 6. valve seal packing ring according to Claims 2 or 3, it is characterised in that：The limited block is located at the fluorine In rubber layer, the limited block is integrally formed with the fluororubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721053649.5U CN207195654U (en) | 2017-08-22 | 2017-08-22 | A kind of valve seal packing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721053649.5U CN207195654U (en) | 2017-08-22 | 2017-08-22 | A kind of valve seal packing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195654U true CN207195654U (en) | 2018-04-06 |
Family
ID=61794772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721053649.5U Expired - Fee Related CN207195654U (en) | 2017-08-22 | 2017-08-22 | A kind of valve seal packing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195654U (en) |
-
2017
- 2017-08-22 CN CN201721053649.5U patent/CN207195654U/en not_active Expired - Fee Related
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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: 20180406 Termination date: 20200822 |