CN202017801U - Full-flow vertical-type screw check valve - Google Patents

Full-flow vertical-type screw check valve Download PDF

Info

Publication number
CN202017801U
CN202017801U CN2011201424205U CN201120142420U CN202017801U CN 202017801 U CN202017801 U CN 202017801U CN 2011201424205 U CN2011201424205 U CN 2011201424205U CN 201120142420 U CN201120142420 U CN 201120142420U CN 202017801 U CN202017801 U CN 202017801U
Authority
CN
China
Prior art keywords
valve
diameter
boss
valve core
sealing
Prior art date
Application number
CN2011201424205U
Other languages
Chinese (zh)
Inventor
沈汉民
李勇
张丽智
Original Assignee
浙江武荣阀门有限公司
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 浙江武荣阀门有限公司 filed Critical 浙江武荣阀门有限公司
Priority to CN2011201424205U priority Critical patent/CN202017801U/en
Application granted granted Critical
Publication of CN202017801U publication Critical patent/CN202017801U/en

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Abstract

The utility model relates to a full-flow vertical-type screw check valve, which relates to the technical field of the check valve, and comprises a valve body, a valve cover, a valve core, a spring and a sealing pad, wherein the valve body is provided with a valve core rod guiding sleeve and a three-point inner diameter guiding sleeve, the inner diameter of the valve body and three ribs form an original annular channel, a lug boss bottom plane of the three ribs and a stop-end surface of the inner diameter of the valve body form an original vertical channel, the area of the annular channel and the vertical channel is more than or equal to the area of a through diameter so as to form a full flow and reduce the resistance force of the fluid, so the power of the pipeline can be saved; the large diameter of the valve core is in clearance fit with the inner diameter of the three ribs of the valve body in a sliding way, the outer diameter of the valve core rod is in clearance fit with the inner diameter of a spring seat lug boss in a sliding way, so the sealing between a valve core sealing surface and a valve cover sealing lug boss can be guaranteed, the valve core rod guiding sleeve is telescopic in the inner diameter of the spring seat lug boss, and the height of the spring seat lug boss plays a role in opening and positioning the valve core and for controlling the spring against the straining.

Description

The vertical screw thread safety check of a kind of full flow
Technical field
The utility model relates to the Vertical Lift Check Valves technical field, a kind of vertical screw thread safety check in all-pass footpath that can be used for reducing production costs in the particularly various pipe-line systems.
Background technique
The safety check that is threaded of Shi Yonging in the market, when the spool guide rod is opened, since flexible in the latus rectum road, the portion of channel area so it must account for, so negotiability can not guarantee full flow; Can not locate after spool is opened in addition, has plenty of pressured tight spring location, can make spring stress too big like this, influence working life, had only location of spool guide rod in addition in the past, and spool is rocked in opening and closing, also make guide rod accelerated wear test finally cause the valve core sealed cover skew easily.
The model utility content
The purpose of this utility model is: provide a kind of full flow vertical screw thread safety check, under the situation that guarantees the safety check reliable sealing, in order to reduce intrinsic circulation area, this safety check adopts the method that changes currency structure, makes the area of intrinsic spool guide rod play the effect that does not take circulation area.
The concrete scheme that solves above these problems: the vertical screw thread safety check of a kind of full flow, it is characterized in that: this safety check comprises valve body, valve gap, spool, spring and sealing gasket, described valve body is provided with valve core rod guide sleeve, tibet cinnamon bark boss, the valve block internal diameter of valve body and tibet cinnamon bark are formed intrinsic annular pass, the boss bottom plane of tibet cinnamon bark and the not-go-end face of valve block internal diameter are formed intrinsic vertical passage, more than the area of two passages all more than or equal to drift diameter area, reduce fluid resistance to form full flow, save pipeline power.
The big footpath of described spool all adopts the gap to be slidingly matched with the external diameter of the internal diameter of the tibet cinnamon bark of valve body and valve core rod and the internal diameter of spring seat boss, promptly plays guiding to guarantee the sealing of valve core sealed cover and valve bonnet seal boss.
Described valve core rod guide sleeve is flexible in the internal diameter of spring seat boss, and its spool is when opening entirely, and the head of valve core rod guide sleeve must not stretch out the internal diameter of boss, otherwise will influence the circulation area of vertical passage.
The height of described spring seat boss is to play that spool opens that the effect of location and control spring do not produce and the length of tight effect.
The sealing surface of described valve seat designs on the internal boss of valve gap and this boss is higher than the plane that is threaded, so that batch mechanical lapping sealing surface.
Compared with prior art, advantage of the present utility model and beneficial effect are:
1, technical solutions of the utility model adopt the method that changes currency structure, make the area of intrinsic spool guide rod play the effect that does not take circulation area;
2, technical solutions of the utility model, 3 internal diameter guide sleeves that adopt tibet cinnamon bark to form, can prevent that spring from also tightly can not played the positioning action after spool is opened again, can also guarantee that the spool guide rod is not extended the bottom end of boss when stretching in the boss internal diameter, thereby reduced the area that orientation lever does not take vertical passage, got the area of full flow.
Description of drawings
Fig. 1 is technical solutions of the utility model embodiment's a sectional structure schematic representation;
Fig. 2 is the A-A sectional structure schematic representation of Fig. 1;
In the drawings,
1, valve gap 2, sealing gasket 3, spool 4, spring
5, valve body 11, boss sealing surface 31, spool guide rod
51, valve core rod guide sleeve 52, tibet cinnamon bark boss 53, valve block internal diameter
54, the not-go-end face 56 of tibet cinnamon bark boss bottom plane 55, valve block internal diameter, spring seat boss
Embodiment
In conjunction with Fig. 1, Fig. 2, example structure schematic representation for the vertical screw thread safety check of a kind of full flow of the utility model, the vertical screw thread safety check of this full flow comprises two guide sleeves on valve gap 1, sealing gasket 2, spool 3, spring 4, valve body 5, the described valve body 5, one is valve core rod guide sleeve 51, another is 3 internal diameter guide sleeves that tibet cinnamon bark boss 52 is formed, so just overcome a former shortcoming that guide sleeve produced, thereby guaranteed the robust motion of spool 3.
Valve block internal diameter 53 forms intrinsic annular pass area with tibet cinnamon bark boss 52 guide sleeves with tibet cinnamon bark, this area is bigger than pipeline drift diameter, the boss bottom plane 54 of tibet cinnamon bark is that tibet cinnamon bark boss bottom plane 54 has enough height with the not-go-end face 55 of valve block internal diameter, form intrinsic vertical passage area, this area also must be greater than the pipeline drift diameter area; Described tibet cinnamon bark boss 52 is again a spring seat boss 56, the height of spring seat boss 56 is greater than height spring 4 and tight, this spring seat boss 56 can prevent that spring 4 is by also tight, spool 3 is opened under the effect of medium power, and be positioned on the spring seat boss 56 and play positioning action, can also guarantee that spool guide rod 31 is not extended outside the inner diameter hole when flexible in the internal diameter of tibet cinnamon bark boss 52, otherwise will influence the area of vertical passage; Valve Cuo design is on the boss sealing surface 11 of valve gap 1 inside, if boss sealing surface 11 is lower than the threaded end plane, grind just relatively more difficult, and grinding that can only be one by one, here boss sealing surface 11 is allowed it protrude the threaded end plane, so just can on lapping machine, grind boss sealing surface 11 in bulk.In order to ensure the full flow safety check, 3 L numerical value in the valve all must equate, the area that so just can make each passage is all more than or equal to the drift diameter area of valve.
The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on thinking of the present utility model, all should be within protection domain of the present utility model.

Claims (3)

1. vertical screw thread safety check of full flow, it is characterized in that: this safety check comprises valve body (5), valve gap (1), spool (3), spring (4) and sealing gasket (2), described valve body (5) is provided with valve core rod guide sleeve (51), tibet cinnamon bark boss (52), the valve block internal diameter (53) of valve body (5) is formed intrinsic annular pass with tibet cinnamon bark, intrinsic vertical passage is formed with the not-go-end face of valve block internal diameter (53) in the boss bottom plane (54) of tibet cinnamon bark, and the area of described annular pass and vertical passage is all more than or equal to drift diameter area.
2. the vertical screw thread safety check of full flow according to claim 1 is characterized in that: the big footpath of described spool (3) and the internal diameter of the tibet cinnamon bark of valve body (5) and the external diameter of valve core rod and the internal diameter of spring seat boss (56) all adopt the gap to be slidingly matched.
3. the vertical screw thread safety check of full flow according to claim 1 is characterized in that: the sealing surface of described valve seat designs on the internal boss of valve gap (1) and this boss is higher than the plane that is threaded.
CN2011201424205U 2011-05-06 2011-05-06 Full-flow vertical-type screw check valve CN202017801U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201424205U CN202017801U (en) 2011-05-06 2011-05-06 Full-flow vertical-type screw check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201424205U CN202017801U (en) 2011-05-06 2011-05-06 Full-flow vertical-type screw check valve

Publications (1)

Publication Number Publication Date
CN202017801U true CN202017801U (en) 2011-10-26

Family

ID=44811471

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201424205U CN202017801U (en) 2011-05-06 2011-05-06 Full-flow vertical-type screw check valve

Country Status (1)

Country Link
CN (1) CN202017801U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425688A (en) * 2011-11-21 2012-04-25 芜湖市安芜汽车制动元件有限公司 Retaining valve
CN102563136A (en) * 2011-12-16 2012-07-11 杭州春江阀门有限公司 Low-resistance non-return valve
CN102878329A (en) * 2012-10-13 2013-01-16 南通国电电站阀门有限公司 Supercritical butt welding cylindrical vertical check valve
CN102979776A (en) * 2012-11-23 2013-03-20 三一重机有限公司 Tubular oil return valve and engineering machinery
CN103672049A (en) * 2013-12-12 2014-03-26 中国航空工业集团公司金城南京机电液压工程研究中心 Straight-through check valve
CN103883767A (en) * 2014-04-22 2014-06-25 张筱秋 Flange joint two-plate flow guide zinc alloy perpendicular one-way valve
CN103883768B (en) * 2014-04-22 2016-03-16 张筱秋 The vertical one-way valve of a kind of male connection three plate water conservancy diversion aluminum alloy

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425688A (en) * 2011-11-21 2012-04-25 芜湖市安芜汽车制动元件有限公司 Retaining valve
CN102563136A (en) * 2011-12-16 2012-07-11 杭州春江阀门有限公司 Low-resistance non-return valve
CN102878329A (en) * 2012-10-13 2013-01-16 南通国电电站阀门有限公司 Supercritical butt welding cylindrical vertical check valve
CN102979776A (en) * 2012-11-23 2013-03-20 三一重机有限公司 Tubular oil return valve and engineering machinery
CN102979776B (en) * 2012-11-23 2015-12-23 三一重机有限公司 Tubular oil return valve and engineering machinery
CN103672049A (en) * 2013-12-12 2014-03-26 中国航空工业集团公司金城南京机电液压工程研究中心 Straight-through check valve
CN103883767A (en) * 2014-04-22 2014-06-25 张筱秋 Flange joint two-plate flow guide zinc alloy perpendicular one-way valve
CN103883768B (en) * 2014-04-22 2016-03-16 张筱秋 The vertical one-way valve of a kind of male connection three plate water conservancy diversion aluminum alloy
CN103883767B (en) * 2014-04-22 2016-03-16 温州市张衡科技服务有限公司 The vertical one-way valve of a kind of flanged joint two plate water conservancy diversion zinc alloy

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111026

Termination date: 20130506