CN205806524U - A kind of balanced type break valve - Google Patents

A kind of balanced type break valve Download PDF

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Publication number
CN205806524U
CN205806524U CN201620591406.6U CN201620591406U CN205806524U CN 205806524 U CN205806524 U CN 205806524U CN 201620591406 U CN201620591406 U CN 201620591406U CN 205806524 U CN205806524 U CN 205806524U
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China
Prior art keywords
valve
flap
hole
pocket
balanced type
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Active
Application number
CN201620591406.6U
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Chinese (zh)
Inventor
潘建新
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.)
Shanghai Hongsheng Special Valve Manufacturing Ltd By Share Ltd
Original Assignee
Shanghai Hongsheng Special Valve Manufacturing Ltd By Share Ltd
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Priority to CN201620591406.6U priority Critical patent/CN205806524U/en
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Abstract

This utility model relates to a kind of balanced type break valve, this stop valve includes valve body, valve gap, spool and hands wheel, described valve body includes valve pocket and the lower through-hole connected with valve pocket and upper through hole, described spool includes flap, flap set and valve rod, described flap set is fixed on the top of described valve pocket, the inner slide that described flap overlaps with flap is connected, described valve rod one end is connected with flap top, the other end is connected through described valve gap with handwheel, on the downside of described valve gap, inside flap set, the upside with flap forms counter balance pocket, the upside of described flap has the through hole for connecting counter balance pocket and valve pocket.Compared with prior art, this utility model compact conformation, solve the problem that stop valve opening and closing is difficult exquisitely, and realize two way seal, be especially used on oxygen Nitrogen pipe network, security performance is high and effective.

Description

A kind of balanced type break valve
Technical field
This utility model relates to valve field, is specifically related to a kind of balanced type break valve.
Background technology
Stop valve is widely used in being the various field such as oil, chemical industry.Its advantage is: simple in construction, manufactures and keep in repair ratio More convenient.Keying stroke is short, opens and closes the time needed short.Good airproof performance, between sealing surface, frictional force is little, lasts a long time.In opening and closing During the frictional force of sealing surface less than gate valve, wear-resisting.Generally only one of which sealing surface, manufacturing process is good, it is simple to maintenance.But this Kind valve is when fluid pressure is big, and during opening and closing, required power is bigger.For solving this problem, occur as soon as pressure Balanced valve.Existing a lot of pressure balanced stop valve, but this kind of valve all structures are complicated, keep in repair relatively difficult.
Utility model content
Defect that the purpose of this utility model is contemplated to overcome above-mentioned prior art to exist and provide a kind of simple in construction, Effectively solve the balanced type break valve of opening and closing difficult problem.
The purpose of this utility model can be achieved through the following technical solutions: a kind of balanced type break valve, this stop valve Including valve body, valve gap, spool and handwheel, described valve body includes valve pocket and the lower through-hole connected with valve pocket and upper through hole, described Spool includes flap, flap set and valve rod, and described flap set is fixed on the top of described valve pocket, and described flap is interior with what flap overlapped Slideslip connects, and described valve rod one end is connected with flap top, and the other end is connected with handwheel, under described valve gap through described valve gap Inside side, flap set and the upside of flap forms counter balance pocket, and the upside of described flap has for connecting counter balance pocket and valve pocket Through hole.
Described through hole is uniformly distributed around valve rod, and the quantity of through hole is 2~8.
Central authorities bottom described flap are provided with cylindrical groove, and the two ends of described through hole connect counter balance pocket respectively and flap is recessed Groove.
The bottom of described flap is connected with the upper end sidewall contact of described lower through-hole.
Owing to arranging through hole, counter balance pocket is connected with valve pocket, so the pressure between counter balance pocket and valve pocket remains one Cause, make spool open and close moment the most not by the active force (medium power mutually balances) of medium, it is only necessary to less Power it is ensured that be turned on and off;And flap uses the form of hollow, the weight of flap itself is the most little, the most effectively Required power bigger problem when solving to open and close.
Described flap set is equipped with sealing ring with valve body, valve gap and flap junction.This sealing ring uses the elasticity of import Sealing ring, good sealing effect, life-span length is the most aging, can be according to the pressure automatic-sealed of medium.
Work process of the present utility model is as follows: during original state, the bottom of flap and the upper end sidewall contact of lower through-hole Connect, lower through-hole is blocked, and due to flap upper groove and the existence of through hole so that the pressure between lower through-hole and counter balance pocket is The same;It addition, upper through hole is blocked by the lateral wall of flap, whole stop valve is in disconnection state.
When stop valve opened by needs, rotate handwheel, valve rod is up mentioned, thus drives flap to overlap inwall along flap Moving upward, flap separates with the upper end of lower through-hole, and therefore lower through-hole, valve pocket connect with upper through hole, and fluid flows.This practicality is new Type stop valve changes the structural shape of current heavy caliber stop valve, makes medium flow to the most restricted, it is possible to achieve two-way close Envelope, is especially used on oxygen Nitrogen pipe network, and security performance is high and effective.
Compared with prior art, the beneficial effects of the utility model are embodied in following several respects:
(1) arranging through hole makes counter balance pocket connect with valve pocket, so the pressure between counter balance pocket and valve pocket remains one Cause, make spool open and close moment the most not by the active force (medium power mutually balances) of medium, it is only necessary to less Power it is ensured that be turned on and off;
(2) change the structural shape of current heavy caliber stop valve, make medium flow to the most restricted, it is possible to achieve two-way Sealing, be especially used on oxygen Nitrogen pipe network, security performance is high and effective;
(3) sealing ring uses the elastic seal ring of import, and good sealing effect, life-span length is the most aging, can be according to the pressure of medium Power automatic-sealed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is valve body, and 2 is valve gap, and 3 is handwheel, and 4 is flap set, and 5 is flap, and 6 is valve rod, and 7 is lower through-hole, and 8 are Upper through hole, 9 is valve pocket, and 10 is counter balance pocket, and 11 is through hole, and 12 is sealing ring.
Detailed description of the invention
Elaborating embodiment of the present utility model below, the present embodiment is being front with technical solutions of the utility model Put and implement, give detailed embodiment and concrete operating process, but protection domain of the present utility model does not limits In following embodiment.
Embodiment
A kind of balanced type break valve, its structure as it is shown in figure 1, this stop valve includes valve body 1, valve gap 2, spool and handwheel 3, Valve body 1 includes valve pocket 9 and the lower through-hole 7 connected with valve pocket 9 and upper through hole 8, and fluid can enter from lower through-hole 7, through valve pocket 9 Finally flowing out from upper through hole 8, vice versa.Spool includes that flap 5, flap set 4 and valve rod 6, flap set 4 are fixed on valve pocket 9 Top, and the place that flap set 4 and valve pocket 9 connect is provided with sealing ring 12, flap 5 is arranged on the inner side of flap set 4, and and flap Set 4 is slidably connected, and also is provided with sealing ring 12 between flap 5 and flap set 4;Valve rod 6 one end is connected with flap 5 top, another End is connected through valve gap 2 with handwheel 3.Wherein the upside of the downside of valve gap 2, the inner side of flap set 4 and flap 5 forms counter balance pocket 10, the central authorities bottom flap 5 are provided with cylindrical groove, have through hole 11 in the upside of flap 5 so that counter balance pocket 10 and flap 5 are recessed Pressure in groove is equal, so that the pressure of counter balance pocket 10 is identical with valve pocket 9 and lower through-hole 7.
During original state, the bottom of flap 5 is connected with the upper end sidewall contact of lower through-hole 7, is blocked by lower through-hole 7, and by In flap 5 upper groove and the existence of through hole 11 so that the pressure between lower through-hole 7 and counter balance pocket 10 is the same;It addition, flap Upper through hole 8 is blocked by the lateral wall of 5, and whole stop valve is in disconnection state.
When stop valve opened by needs, rotate handwheel 3, valve rod 6 is up mentioned, thus drive flap 5 to overlap 4 along flap Inwall moves upward, and flap 5 separates with the upper end of lower through-hole 7, and therefore lower through-hole 7, valve pocket 9 connect with upper through hole 8, fluid stream Dynamic.This utility model stop valve changes the structural shape of current heavy caliber stop valve, makes medium flow to the most restricted, permissible Realizing two way seal, be especially used on oxygen Nitrogen pipe network, security performance is high and effective.

Claims (5)

1. a balanced type break valve, this stop valve includes valve body, is positioned at the valve fixed with valve body above valve body and by bolt Lid, spool and handwheel, described valve body includes valve pocket and the lower through-hole connected with valve pocket and upper through hole, and described spool includes valve Lobe, flap set and valve rod, described flap set is fixed on the top of described valve pocket, and described flap connects with the inner slide of flap set Connecing, described valve rod one end is connected with flap top, and the other end is connected through described valve gap with handwheel, it is characterised in that described valve On the downside of lid, flap set inside and flap upside formed counter balance pocket, the upside of described flap has for connecting counter balance pocket and valve The through hole in chamber.
A kind of balanced type break valve the most according to claim 1, it is characterised in that described through hole uniformly divides around valve rod Cloth, the quantity of through hole is 2~8.
A kind of balanced type break valve the most according to claim 1, it is characterised in that the central authorities bottom described flap are provided with post Connected in star, the two ends of described through hole are respectively communicated with counter balance pocket and cylindrical groove.
A kind of balanced type break valve the most according to claim 3, it is characterised in that the bottom of described flap is lower logical with described The upper end sidewall contact in hole connects.
A kind of balanced type break valve the most according to claim 1, it is characterised in that described flap set and valve body, valve gap and Flap junction is equipped with sealing ring.
CN201620591406.6U 2016-06-17 2016-06-17 A kind of balanced type break valve Active CN205806524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620591406.6U CN205806524U (en) 2016-06-17 2016-06-17 A kind of balanced type break valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620591406.6U CN205806524U (en) 2016-06-17 2016-06-17 A kind of balanced type break valve

Publications (1)

Publication Number Publication Date
CN205806524U true CN205806524U (en) 2016-12-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620591406.6U Active CN205806524U (en) 2016-06-17 2016-06-17 A kind of balanced type break valve

Country Status (1)

Country Link
CN (1) CN205806524U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108036067A (en) * 2018-01-24 2018-05-15 江苏明江阀业有限公司 Equilibrant force bellows stop valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108036067A (en) * 2018-01-24 2018-05-15 江苏明江阀业有限公司 Equilibrant force bellows stop valve

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