CN205298624U - Butterfly valve that valve rod is well sealed - Google Patents
Butterfly valve that valve rod is well sealed Download PDFInfo
- Publication number
- CN205298624U CN205298624U CN201521028773.7U CN201521028773U CN205298624U CN 205298624 U CN205298624 U CN 205298624U CN 201521028773 U CN201521028773 U CN 201521028773U CN 205298624 U CN205298624 U CN 205298624U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- butterfly
- nut
- loosing
- 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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- Lift Valve (AREA)
Abstract
The utility model discloses a butterfly valve that valve rod is well sealed, including valve body, valve rod, thrust plane, filler, gland, nut, handle, locking lid, valve -stem nut and butterfly reed, the valve body on be equipped with the valve rod, the valve rod on pack into behind the suit thrust plane in the valve body, then insert the filler, gland and butterfly reed in the pressurization, the butterfly reed on be equipped with valve -stem nut, valve -stem nut on be equipped with locking lid, the locking cover of covering the handle is equipped with, the handle on be equipped with the nut. The utility model discloses can guarantee screw nut can not receive external shock and become flexible to ensure good encapsulated situation. Still be equipped with the butterfly reed in addition between valve -stem nut and gland, make that still to have sufficient packing force to guarantee sealed after the wearing and tearing of packing, this needs the occasion of zero leakage especially important on to the pipeline, the utility model relates to a rationally, convenient operation.
Description
[technical field]
This utility model relates to the technical field of the valve rod that people are often designed into, particularly the technical field of the butterfly valve of a kind of valve rod excellent sealing.
[background technology]
Valve rod is the vitals that the dynamic opening and closing element of stock makes valve opening and closing, because valve rod is movable piece. So being the position the most easily leaked outside. Therefore, valve stem seal is very important about valve. The sealing of valve rod is typically by tightening filler. Tighten filler and refer to the soft data making valve rod environmental seal in press-in stuffing-box. Filler effect pressure on horizontal support surface if equal to or higher than pressure medium, and be also sufficient to allow the smuggling and tax evasion ditch Guan Bi on athwartship plane, then medium just can be played sealing by filler.
Valve rod is valve vitals, for transmission, above connects actuator or handle, and band movable valve plug moves or rotates directly below, to realize valve switch or adjustment effect. Valve rod in valve opening and closing process not still movement parts, stressed member, and be sealing member. Meanwhile, it is subject to impact and the corrosion of medium, also produces friction with filler. Therefore when selector valve bar material, it is necessary to assure it has enough intensity, good impact flexibility, resistance to marring, corrosion resistance at an established temperature. Valve rod is consumable accessory, should also be noted that machining property and the heat treatment performance of material when selecting.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, it is proposed to the butterfly valve of a kind of valve rod excellent sealing, solves the problem that valve rod easily leaks outside.
For achieving the above object, the utility model proposes the butterfly valve of a kind of valve rod excellent sealing, including valve body, valve rod, thrust plate, filler, gland, nut, handle, Anti-loosing-cover, valve stem nut and butterfly reed, described valve body is provided with valve rod, load after described valve rod is set with thrust plate in valve body, it is then filled with filler, gland and butterfly reed is pressed adding, described butterfly reed is provided with valve stem nut, described valve stem nut is provided with Anti-loosing-cover, being set with handle on described Anti-loosing-cover, described handle is provided with nut.
As preferably, the center hole shape of described valve rod upper end shape and Anti-loosing-cover is square.
As preferably, described valve stem nut is hex nut.
As preferably, described Anti-loosing-cover is 12 jiaos of plum blossom-shapeds.
As preferably, the quantity of described butterfly reed is 2.
The beneficial effects of the utility model: this utility model by being broadly divided into valve rod, valve stem nut, gland by sealed valve stem, valve stem nut is cased with Anti-loosing-cover, the centre bore of Anti-loosing-cover closes with valve rod matching form, and Anti-loosing-cover is embedded on valve stem nut through valve rod. Owing to the compression of filler is that the thrust that screws by bolt and nut passes to gland and realizes, be nested Anti-loosing-cover on bolt and nut, can guarantee that bolt and nut will not be subject to external force collision loosen, to guarantee good sealing state. Additionally also being provided with butterfly reed between valve stem nut and gland, make still have enough thrusts to ensure to seal after filler weares and teares, this is for needing the occasion of zero leakage to be even more important on pipeline, this utility model is reasonable in design, easy to operate.
Feature of the present utility model and advantage will be described in detail in conjunction with accompanying drawing by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the butterfly valve of a kind of valve rod excellent sealing of this utility model;
Fig. 2 is the front view of the Anti-loosing-cover of the butterfly valve of a kind of valve rod excellent sealing of this utility model;
Fig. 3 is the side view of the Anti-loosing-cover of the butterfly valve of a kind of valve rod excellent sealing of this utility model;
Fig. 4 is the schematic diagram of the butterfly reed of the butterfly valve of a kind of valve rod excellent sealing of this utility model.
In figure: 1-valve body, 2-valve rod, 3-thrust washer, 4-filler, 5-gland, 6-nut, 7-handle, 8-Anti-loosing-cover, 9-valve stem nut, 10-butterfly reed.
[detailed description of the invention]
Consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the butterfly valve of a kind of valve rod excellent sealing of this utility model, including valve body 1, valve rod 2, thrust plate 3, filler 4, gland 5, nut 6, handle 7, Anti-loosing-cover 8, valve stem nut 9 and butterfly reed 10, described valve body 1 is provided with valve rod 2, load after described valve rod 2 is set with thrust plate 3 in valve body 1, it is then filled with filler 4, gland 5 and butterfly reed 10 is pressed adding, described butterfly reed 10 is provided with valve stem nut 9, described valve stem nut 9 is provided with Anti-loosing-cover 8, described Anti-loosing-cover 8 is set with handle 7, described handle 7 is provided with nut 6, the center hole shape of described valve rod 2 upper end shape and Anti-loosing-cover 8 is square, described valve stem nut 9 is hex nut, described Anti-loosing-cover 8 is 12 jiaos of plum blossom-shapeds, the quantity of described butterfly reed 10 is 2.
Utility model works process:
The butterfly valve of a kind of valve rod excellent sealing of this utility model is in the course of the work, sealed valve stem is broadly divided into valve rod 1, valve stem nut 9, gland 5, valve stem nut 9 is cased with Anti-loosing-cover 8, the centre bore of Anti-loosing-cover 8 closes with valve rod 2 matching form, and Anti-loosing-cover 8 is embedded on valve stem nut 9 through valve rod 2. Owing to the compression of filler 4 is that the thrust that screws by bolt and nut passes to gland 5 and realizes, be nested Anti-loosing-cover 8 on bolt and nut, can guarantee that bolt and nut will not be subject to external force collision loosen, to guarantee good sealing state. Additionally also being provided with butterfly reed 10 between valve stem nut 9 and gland 5, make still have enough thrusts to ensure to seal after filler 4 weares and teares, this is for needing the occasion of zero leakage to be even more important on pipeline, this utility model is reasonable in design, easy to operate.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any scheme after this utility model simple transformation is belonged to protection domain of the present utility model.
Claims (5)
1. the butterfly valve of a valve rod excellent sealing, it is characterized in that: include valve body (1), valve rod (2), thrust plate (3), filler (4), gland (5), nut (6), handle (7), Anti-loosing-cover (8), valve stem nut (9) and butterfly reed (10), described valve body (1) is provided with valve rod (2), described valve rod (2) is set with thrust plate (3) and loads in valve body (1) afterwards, it is then filled with filler (4), gland (5) and butterfly reed (10) is pressed adding, described butterfly reed (10) is provided with valve stem nut (9), described valve stem nut (9) is provided with Anti-loosing-cover (8), described Anti-loosing-cover (8) is set with handle (7), described handle (7) is provided with nut (6).
2. the butterfly valve of a kind of valve rod excellent sealing as claimed in claim 1, it is characterised in that: the center hole shape of described valve rod (2) upper end shape and Anti-loosing-cover (8) is square.
3. the butterfly valve of a kind of valve rod excellent sealing as claimed in claim 1, it is characterised in that: described valve stem nut (9) is hex nut.
4. the butterfly valve of a kind of valve rod excellent sealing as claimed in claim 1, it is characterised in that: described Anti-loosing-cover (8) is 12 jiaos of plum blossom-shapeds.
5. the butterfly valve of a kind of valve rod excellent sealing as claimed in claim 1, it is characterised in that: the quantity of described butterfly reed (10) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028773.7U CN205298624U (en) | 2015-12-10 | 2015-12-10 | Butterfly valve that valve rod is well sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028773.7U CN205298624U (en) | 2015-12-10 | 2015-12-10 | Butterfly valve that valve rod is well sealed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298624U true CN205298624U (en) | 2016-06-08 |
Family
ID=56431600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521028773.7U Expired - Fee Related CN205298624U (en) | 2015-12-10 | 2015-12-10 | Butterfly valve that valve rod is well sealed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298624U (en) |
-
2015
- 2015-12-10 CN CN201521028773.7U patent/CN205298624U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20181210 |