CN207701795U - Without pin anti-leak three-eccentric-butterfly-valve - Google Patents
Without pin anti-leak three-eccentric-butterfly-valve Download PDFInfo
- Publication number
- CN207701795U CN207701795U CN201721671535.7U CN201721671535U CN207701795U CN 207701795 U CN207701795 U CN 207701795U CN 201721671535 U CN201721671535 U CN 201721671535U CN 207701795 U CN207701795 U CN 207701795U
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- China
- Prior art keywords
- valve body
- butterfly
- valve
- valve rod
- butterfly plate
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- Expired - Fee Related
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Abstract
The utility model proposes a kind of no pin anti-leak three-eccentric-butterfly-valves, including valve rod, butterfly plate, upper valve body and lower valve body.Wherein, the through-hole for interting valve rod is equipped on upper valve body, lower valve body and butterfly plate, valve rod is interference fitted by V sealing rings and upper valve body and the through-hole of lower valve body, butterfly plate is set to by valve rod between upper valve body and lower valve body, the lower half of valve rod is equipped with the tongue-and-groove being arranged along shaft length direction, and the madial wall of butterfly plate through-hole is equipped with and the matched first tenon block of tongue-and-groove；The madial wall of lower valve body through-hole be equipped with the matched second tenon block of tongue-and-groove, the boss surface at the top of tongue-and-groove is peaked at the top of the first tenon block, the bottom end of valve rod and butterfly plate through-hole contact surface is equipped with limit element.Leakage is caused to solve the problem of that existing three-eccentric-butterfly-valve has thermal expansion irregular deformation.
Description
Technical field
The utility model is related to valve technology field more particularly to a kind of no pin anti-leak three-eccentric-butterfly-valves.
Background technology
Three-eccentric-butterfly-valve is mainly used in：The fields such as petrochemical industry, sea water desalination, medical instrument, metallurgy, electric power, nuclear energy.
Three-eccentric-butterfly-valve is more applied to high temperature and high pressure condition, so the structural requirement to three-eccentric-butterfly-valve is also higher, especially to consider
Valve receives the thermal deformation under the irregular temperature load condition, and three-eccentric-butterfly-valve highest heatproof is up to 538 degree of (Fahrenheits Celsius at present
1000 degree).The definition of so-called three eccentricity is：Butterfly plate center is deviateed in valve rod axle center simultaneously and body central is two bias, sealing
Pair is that scalene cone is third bias.
But existing three-eccentric-butterfly-valve butterfly plate is generally coordinated by double-pin with valve rod to be realized, double mode precision slightly coordinated are wanted
It asks high, directly affects the interchangeability of valve components, improve replacing valve maintenance cost and part management cost.In addition,
Valve plate is different from the material of valve rod, so coefficient of thermal expansion also differs, at the same temperature, the thermal expansion amount of valve rod and valve plate
It is different, so, valve will produce irregular fever expansion in thermal force, and pin, which can meet, laterally thermally expands generation
Displacement, but limit displacement caused by longitudinal thermal expansion generation and cause to leak to make valve plate irregular deformation.
Utility model content
The purpose of this utility model is that propose a kind of no pin anti-leak three-eccentric-butterfly-valve, it is existing in background technology to solve
Three-eccentric-butterfly-valve exist thermally expand irregular deformation, cause leakage the problem of.
To solve the above problems, the utility model proposes a kind of no pin anti-leak three-eccentric-butterfly-valve, including valve rod, butterfly plate,
Upper valve body and lower valve body, wherein the through-hole for interting the valve rod is equipped on the upper valve body, lower valve body and butterfly plate；Institute
Valve rod is stated to be interference fitted by V sealing rings and the upper valve body and the through-hole of lower valve body；The butterfly plate is set to by the valve rod
Between the upper valve body and the lower valve body；
The lower half of the valve rod is equipped with the tongue-and-groove being arranged along the shaft length direction；The madial wall of the butterfly plate through-hole
It is equipped with and the matched first tenon block of the tongue-and-groove；The madial wall of the lower valve body through-hole is equipped with and is matched with the tongue-and-groove
The second tenon block；The boss surface at the top of the tongue-and-groove is peaked at the top of the first tenon block；The valve rod is logical with the butterfly plate
The bottom end of hole contact surface is equipped with limit element.
Preferably, the limit element is clamp spring；On the valve rod, it is equipped with the bottom end of the butterfly plate through-hole contact surface
Jump-ring slot；The clamp spring is set in the jump-ring slot.
Preferably, the jump-ring slot is set at butterfly plate through-hole bottom end 1-2cm.
Preferably, the valve rod bottom end is equipped with thrust bearing.
Preferably, the outer ring of the butterfly plate is arranged with O-ring and valve deck.
Preferably, the upper valve body and lower valve body are equipped with filler around the valve rod；The filler bottom end is equipped with Packing seat
Circle.
Compared with prior art, the utility model is advantageous in that：Valve rod by the cooperation of tongue-and-groove and tenon block come for
Butterfly plate passing power, can be there are gap appropriate, to help butterfly plate heated irregular become to occur long-term between tongue-and-groove and tenon block
After shape, when being closed, lateral displacement can be suitably carried out.The design of limit element can also while preventing valve rod from jumping out
The spacing of appropriate adjustment valve rod and butterfly plate, ensures that butterfly plate can suitably carry out length travel, reduces butterfly plate and irregular become occurs
Slip after shape.And the precision between tongue-and-groove and tenon block is without especially accurately, reducing its manufacture difficulty.
Description of the drawings
Fig. 1 is the structure chart without pin anti-leak three-eccentric-butterfly-valve valve rod and butterfly plate in one embodiment of the utility model；
Fig. 2 is the explosive view without pin anti-leak three-eccentric-butterfly-valve in one embodiment of the utility model.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage are clearer, below will be to the technology of the utility model
Scheme is further described.
As shown in Figure 1, propose a kind of no pin anti-leak three-eccentric-butterfly-valve in the present embodiment, including valve rod 1, butterfly plate 2, on
Valve body 3 and lower valve body 4, wherein the through-hole for interting valve rod 1 is equipped on upper valve body 3, lower valve body 4 and butterfly plate 2, valve rod 1 is logical
It crosses V sealing rings 5 to be interference fitted with upper valve body 3 and the through-hole of lower valve body 4, butterfly plate 2 is set to upper valve body 3 and lower valve body 4 by valve rod 1
Between.
As shown in Fig. 2, the lower half of valve rod 1 is equipped with the tongue-and-groove 11 that is arranged along 1 length direction of valve rod, 2 through-hole of butterfly plate it is interior
Side wall is equipped with equipped with the madial wall with 11 matched first tenon block 21 of tongue-and-groove, 4 through-hole of lower valve body and is matched with tongue-and-groove 11
The second tenon block 41, the top of the first tenon block 21 peaks at the boss surface at 11 top of tongue-and-groove, valve rod 1 and 2 through-hole contact surface of butterfly plate
Bottom end be equipped with limit element 6.
In the present embodiment, valve rod 1 by the cooperation of tongue-and-groove 11 and the first tenon block 21 come for 2 passing power of butterfly plate, tongue-and-groove
11 and first between tenon block 21 can there are gap appropriate, with help butterfly plate 2 it is long-term it is heated irregular deformation occurs after, closing
When conjunction, lateral displacement can be suitably carried out.The design of limit element 6 can also be adjusted suitably while preventing valve rod 1 from jumping out
The spacing of whole valve rod 1 and butterfly plate 2 ensures that butterfly plate 2 can suitably carry out length travel, reduces butterfly plate 2 and irregular deformation occurs
Slip afterwards.And the precision between tongue-and-groove 11 and the first tenon block 21 is without especially accurately, reducing its manufacture difficulty.
In the present embodiment, limit element 6 is clamp spring, and on valve rod, clamp spring is equipped with the bottom end of 2 through-hole contact surface of butterfly plate
Slot, clamp spring are set in jump-ring slot.The design of clamp spring and the boss at 11 top of tongue-and-groove, ensure that valve rod 1 will not be popped up out of valve body.
In the present embodiment, jump-ring slot is set at 2 through-hole bottom end 1-2cm of butterfly plate, ensures that butterfly plate 2 can be carried out suitably
Length travel.
In the present embodiment, 1 bottom end of valve rod is equipped with thrust bearing.The outer ring of butterfly plate 2 is arranged with O-ring 7 and valve deck 8.On
Valve body 2 and lower valve body 3 are equipped with filler around valve rod 1, and filler bottom end is equipped with filler washer, for increasing the tight of valve entirety
Property.
The preferred embodiment that above are only the utility model, does not play the role of any restrictions to the utility model.
Any person of ordinary skill in the field, in the range of not departing from the technical solution of the utility model, to the utility model
The technical solution and technology contents of exposure make the variations such as any type of equivalent replacement or modification, belong to without departing from the utility model
Technical solution content, still fall within the scope of protection of the utility model.
Claims (6)
1. a kind of no pin anti-leak three-eccentric-butterfly-valve, which is characterized in that including valve rod, butterfly plate, upper valve body and lower valve body；Wherein,
The through-hole for interting the valve rod is equipped on the upper valve body, lower valve body and butterfly plate；The valve rod passes through V sealing rings and institute
State the through-hole interference fit of upper valve body and lower valve body；The butterfly plate is set to the upper valve body and the lower valve body by the valve rod
Between；
The lower half of the valve rod is equipped with the tongue-and-groove being arranged along the shaft length direction；It is set on the madial wall of the butterfly plate through-hole
Have and the matched first tenon block of the tongue-and-groove；The madial wall of the lower valve body through-hole is equipped with and the tongue-and-groove matched the
Two tenon blocks；The boss surface at the top of the tongue-and-groove is peaked at the top of the first tenon block；The valve rod connects with the butterfly plate through-hole
The bottom end of contacting surface is equipped with limit element.
2. no pin anti-leak three-eccentric-butterfly-valve according to claim 1, which is characterized in that the limit element is clamp spring；
On the valve rod, jump-ring slot is equipped with the bottom end of the butterfly plate through-hole contact surface；The clamp spring is set in the jump-ring slot.
3. no pin anti-leak three-eccentric-butterfly-valve according to claim 2, which is characterized in that the jump-ring slot is set to apart from institute
It states at butterfly plate through-hole bottom end 1-2cm.
4. no pin anti-leak three-eccentric-butterfly-valve according to claim 1, which is characterized in that the valve rod bottom end is equipped with thrust
Bearing.
5. no pin anti-leak three-eccentric-butterfly-valve according to claim 1, which is characterized in that the outer ring of the butterfly plate is arranged with
O-ring and valve deck.
6. no pin anti-leak three-eccentric-butterfly-valve according to claim 1, which is characterized in that the upper valve body and lower valve body are enclosed
It is equipped with filler around the valve rod；The filler bottom end is equipped with filler washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671535.7U CN207701795U (en) | 2017-12-05 | 2017-12-05 | Without pin anti-leak three-eccentric-butterfly-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671535.7U CN207701795U (en) | 2017-12-05 | 2017-12-05 | Without pin anti-leak three-eccentric-butterfly-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701795U true CN207701795U (en) | 2018-08-07 |
Family
ID=63024980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721671535.7U Expired - Fee Related CN207701795U (en) | 2017-12-05 | 2017-12-05 | Without pin anti-leak three-eccentric-butterfly-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207701795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113490808A (en) * | 2019-02-28 | 2021-10-08 | 株式会社开滋 | Valve body of double-eccentric butterfly valve and double-eccentric butterfly valve |
-
2017
- 2017-12-05 CN CN201721671535.7U patent/CN207701795U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113490808A (en) * | 2019-02-28 | 2021-10-08 | 株式会社开滋 | Valve body of double-eccentric butterfly valve and double-eccentric butterfly valve |
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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 |
Granted publication date: 20180807 Termination date: 20191205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |