CN202220871U - Pin-free butterfly valve with soft valve seat - Google Patents

Pin-free butterfly valve with soft valve seat Download PDF

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Publication number
CN202220871U
CN202220871U CN2011203412912U CN201120341291U CN202220871U CN 202220871 U CN202220871 U CN 202220871U CN 2011203412912 U CN2011203412912 U CN 2011203412912U CN 201120341291 U CN201120341291 U CN 201120341291U CN 202220871 U CN202220871 U CN 202220871U
Authority
CN
China
Prior art keywords
valve
valve seat
soft
butterfly
pin
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
Application number
CN2011203412912U
Other languages
Chinese (zh)
Inventor
井艳华
庞慧高
王伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN TANGGU HUAYANG VALVE CO Ltd
Original Assignee
TIANJIN TANGGU HUAYANG VALVE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN TANGGU HUAYANG VALVE CO Ltd filed Critical TIANJIN TANGGU HUAYANG VALVE CO Ltd
Priority to CN2011203412912U priority Critical patent/CN202220871U/en
Application granted granted Critical
Publication of CN202220871U publication Critical patent/CN202220871U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a pin-free butterfly valve with a soft valve seat, which comprises a valve body, a butterfly plate, the valve seat, a valve shaft, a short shaft sleeve, a long shaft sleeve, a spring retainer ring and a split ring, wherein the valve seat is the soft valve seat made of pure rubber, the short shaft sleeve and the long shaft sleeve are used for radially positioning the valve shaft, and the spring retainer ring and the split ring are used for axially positioning the valve shaft. The soft valve seat made of the pure rubber has no support structures such as a backrest and the like, and the rubber is thicker and particularly excellent in elasticity, so that the sealing performance of the butterfly valve is improved, and opening and closing torque of the valve is decreased to a certain degree. Simultaneously, the valve body can be completely wrapped by the soft valve seat, so that leakage is effectively reduced, the contact area of the valve seat with a flange sealing surface is increased when the soft valve seat is connected with a pipeline flange, and the leakage possibility after mounting is decreased. Additionally, internal corrosion of the valve is improved by means of pin-free plate-shaft connection, and accordingly, the pin-free butterfly valve with the soft valve seat is wider in service environment than like products.

Description

Soft valve seat does not have the pin butterfly valve
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of butterfly valve structure that prevents that effectively metal is corroded.
Background technique
At present, the industrial valves door type is various, can be widely used in industries such as chemical industry, food, water, electricity, mainly plays the Flow-rate adjustment of flowing medium and ends effect.Butterfly valve is meant that butterfly plate is a disk, rotates a kind of valve that reaches open and close around valve shaft, and main rising cut off and throttling usefulness on pipeline.The butterfly valve open-shut device is a discoidal butterfly plate, in valve body around himself axis rotation, thereby reach the purpose that opens and closes or regulate, wherein the butterfly valve standard-sized sheet to complete shut-down normally less than 90 °.
The butterfly valve that uses now is mainly axis has the pin butterfly valve; It is to link together through taper pin that its valve shaft of pin butterfly valve is arranged; Such way certainly will stay a certain size destruction face on the surface of butterfly plate, for medium and the corrosion of himself provide condition, leak in producing behind the heavy corrosion can't the driving plate rotation with axle phenomenon; Valve can't be used, reduced the working life of valve.And adopt being connected of backrest valve seat and valve body, this Connecting format is easy to generate the phenomenon that leaks outside.
The model utility content
The purpose of the utility model is to provide a kind of can effectively prevent the butterfly valve that metal is corroded.
The technological scheme that the utility model adopted is:
A kind of soft valve seat does not have the pin butterfly valve, comprise valve body, butterfly plate, valve seat, valve shaft, to valve shaft provide radial location short sleeve and major axis cover, valve shaft is carried out the check ring and the divided ring of axially locating, described valve seat is the soft valve seat that gum is processed.
Preferably; Described soft valve seat comprises the annulus main body that can embed described valve inner with mating; Run through described annulus main center radially with the through hole of valve shaft coupling; Outside vertical extent forms lateral margin at described annulus main body two ends, and described lateral margin symmetrical configuration in the form of a ring is arranged on annulus main body two ends.
Preferably, outside described lateral margin lateral, form with protruding at least one ring fin 33 is arranged.
Preferably, described butterfly plate is connected the flat connection of employing axis with valve shaft.
The beneficial effect of the utility model: the utility model adopts soft valve seat construction; Described soft valve seat is processed by gum; Supporting structures such as its no backrest and the thicker especially rubber of glue have better elastic; Not only improved the sealability of butterfly valve, and it has reduced the open and close torque of valve to a certain extent.Simultaneously, soft valve seat can be with whole parcels of valve body, effectively reduce the phenomenon that leaks outside, and it has increased the area of contact of valve seat and flange facing when being connected with piping flange, and the possibility reduction that the back produces leakage is installed.In addition, the plate axle Connecting format of not having pin has improved the internal corrosion performance of valve, makes this model utility have more the wider Environmental Conditions of its like product.
Description of drawings
Fig. 1 is the utility model butterfly valve structure schematic representation;
Fig. 2 is the utility model valve seat construction schematic representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain:
As shown in Figure 1; The line with rubber axis of the utility model does not have the pin butterfly valve and mainly comprises: but constitute the valve body 1 of butterfly valve main body outward appearance, rotatably be fixedly installed on valve inner realize conducting or the butterfly plate 2 that ends, fixedly be embedded at described valve body 1 inner and allow valve seat 3 that described butterfly plate rotates within it, support described butterfly plate and provide transmission valve shaft 4, be set in valve shaft 4 upper ends with short sleeve 5 that radial location is provided, be set in valve shaft 4 lower ends radial location major axis cover 7 to be provided, to seal handle 9 that O type circle 6 manual control valves open or end, valve shaft is carried out the check ring 1 and the divided ring 11 of axially locating and the chi dish 12 that can show the valve plate open angle.
As depicted in figs. 1 and 2; Soft valve seat of the present invention comprises the annulus main body 31 that can embed described valve body 1 inside with mating; Run through described annulus main body 31 centers through hole 32 radially; Described through hole permission valve shaft passes butterfly plate is carried out transmission, and simultaneously, the valve shaft that runs through also plays positioning action to valve seat.Outside vertical extent forms lateral margin 33 at described annulus main body 31 two ends; Described lateral margin 33 symmetrical configuration in the form of a ring is arranged on annulus main body two ends; When valve seat is embedded described valve body; Lateral margin 33 extends to the valve body both sides, and when butterfly valve was connected with pipeline, lateral margin 33 can effectively guarantee the seal that connects.Preferably, for improving the sealing effect of lateral margin, outside described lateral margin lateral, form has at least one ring fin 34 with protruding, and described fin effect and O shape circle function class seemingly can further promote the connection sealing effect.
As shown in Figure 1, the utility model adopts no pin plate Axile connection structure, but valve shaft link together through flat with butterfly plate with being connected transmission, make the surface of butterfly plate not have tangible mechanical damage, increased the decay resistance of butterfly plate, improved the working life of butterfly plate.
The utility model adopts soft valve seat construction; Described soft valve seat is processed by gum; Supporting structures such as its no backrest and the thicker especially rubber of glue have better elastic, not only improved the sealability of butterfly valve, and it have reduced the open and close torque of valve to a certain extent.Simultaneously, soft valve seat can be with whole parcels of valve body, effectively reduce the phenomenon that leaks outside, and it has increased the area of contact of valve seat and flange facing when being connected with piping flange, and the possibility reduction that the back produces leakage is installed.In addition, the plate axle Connecting format of not having pin has improved the internal corrosion performance of valve, makes this model utility have more the wider Environmental Conditions of its like product.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims (4)

1. a soft valve seat does not have the pin butterfly valve; Comprise valve body, butterfly plate, valve seat, valve shaft, to valve shaft provide radial location short sleeve and major axis cover, valve shaft is carried out the check ring and the divided ring of axially locating, it is characterized in that: described valve seat is the soft valve seat that gum is processed.
2. soft valve seat as claimed in claim 1 does not have the pin butterfly valve; It is characterized in that: described soft valve seat comprises the annulus main body that can embed described valve inner with mating; Run through described annulus main center radially with the through hole of valve shaft coupling; Outside vertical extent forms lateral margin at described annulus main body two ends, and described lateral margin symmetrical configuration in the form of a ring is arranged on annulus main body two ends.
3. soft valve seat as claimed in claim 2 does not have the pin butterfly valve, it is characterized in that: outside described lateral margin lateral, form has at least one ring fin with protruding.
4. according to claim 1 or claim 2 soft valve seat does not have the pin butterfly valve, it is characterized in that: described butterfly plate is connected with valve shaft and adopts the flat connection of axis.
CN2011203412912U 2011-09-13 2011-09-13 Pin-free butterfly valve with soft valve seat Expired - Fee Related CN202220871U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203412912U CN202220871U (en) 2011-09-13 2011-09-13 Pin-free butterfly valve with soft valve seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203412912U CN202220871U (en) 2011-09-13 2011-09-13 Pin-free butterfly valve with soft valve seat

Publications (1)

Publication Number Publication Date
CN202220871U true CN202220871U (en) 2012-05-16

Family

ID=46042898

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203412912U Expired - Fee Related CN202220871U (en) 2011-09-13 2011-09-13 Pin-free butterfly valve with soft valve seat

Country Status (1)

Country Link
CN (1) CN202220871U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379867A (en) * 2020-04-24 2020-07-07 天津澳特斯阀门制造有限公司 High-performance butterfly valve
CN112032322A (en) * 2020-09-10 2020-12-04 耐森阀业有限公司 Butterfly valve with butterfly plate and valve rod deviation rectifying function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379867A (en) * 2020-04-24 2020-07-07 天津澳特斯阀门制造有限公司 High-performance butterfly valve
CN112032322A (en) * 2020-09-10 2020-12-04 耐森阀业有限公司 Butterfly valve with butterfly plate and valve rod deviation rectifying function
CN112032322B (en) * 2020-09-10 2022-04-22 耐森阀业有限公司 Butterfly valve with butterfly plate and valve rod deviation rectifying function

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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

Granted publication date: 20120516

Termination date: 20150913

EXPY Termination of patent right or utility model