CN207935458U - A kind of Split type flexible sealed butterfly valve - Google Patents

Abstract

The utility model discloses a kind of Split type flexible sealed butterfly valves, belong to wafer type butterfly valve, its structure includes valve body, valve seat cylinder, butterfly plate, valve rod and clip handle etc., it is equipped with mainly on valve seat cylinder outer circumference surface embedded fixed, and the valve seat to be linked into an integrated entity including valve seat cylinder integral coating leans on back ring, and valve seat cylinder is inlaid in by back ring positioning in valve chamber channel through valve seat, therefore stablizing for valve seat cylinder can be formed and installed, even if occurring pressure inside pipeline and generating squeezing action to valve seat cylinder, valve seat cylinder will not be made to generate displacement in valve body or fall off, to which the contact Open-close sealing performance between butterfly plate and valve seat cylinder be effectively ensured；Simultaneously, valve body is to form the upper valve body of split structure by upper and lower subdivision and lower valve body is constituted, then first valve seat cylinder and butterfly plate can be installed, it installs again, lower valve body, this mounting means is more convenient, installation site accuracy and the adjusting for being easily installed position are also ensured, to promote the Open-close sealing effect of butterfly valve.

Description

A kind of Split type flexible sealed butterfly valve

Technical field

The utility model is related to a kind of butterfly valve technical field, more particularly to a kind of Split type flexible sealed butterfly valve.

Background technology

Butterfly valve is widely used in conveying various corrosion in the engineering systems such as oil, chemical industry, water power, plumbing, smelting, the energy Property, non-corrosive fluids medium pipeline on, can be used for adjusting and block the flowing of medium.And wafer type butterfly valve is butterfly valve production Common structure in product is mainly made of valve body, valve seat cylinder, butterfly plate, valve rod and handle etc., the cylindrical valve chamber channel of valve body The interior valve seat cylinder with horizontal installation, discoidal butterfly plate are movably arranged in valve seat cylinder, and by valve rod drive and around axis Rotation, that is, butterfly plate are installed in the diametric(al) of pipeline, between rotation angle is 0 ° -90 °, then pass through butterfly plate and valve seat cylinder Between contact or disengaging, can play the role of butterfly valve open and close and flow-rate adjustment.Therefore, wafer type butterfly valve has structure letter It is single, small, light-weight, quick, simple operation and other advantages are opened and closed, while the butterfly valve also has good fluid handling properties. However, all not positioned between valve seat cylinder and valve body in these above-mentioned wafer type butterfly valves, occur pressure inside pipeline, Squeezing action will be generated to valve seat cylinder, and valve seat cylinder is made to generate displacement in valve body or even fall off, may result in butterfly plate in this way Contact Open-close sealing performance between valve seat cylinder declines, and also just affects the sealing effect of butterfly valve；In addition, valve body also all uses Integral structure, therefore valve seat cylinder and butterfly plate must be filled in and be fed into valve chamber channel, this makes the installation of valve seat cylinder and butterfly plate more Trouble, and the position after the two installation is also difficult to ensure accuracy, then the sealing reliability of butterfly valve is equally affected, but also valve Installation site adjusting of the seat cylinder in valve chamber channel will become extremely difficult.

Invention content

There is provided the technical problem to be solved by the utility model is to overcome the deficiencies of existing technologies it is a kind of it is easy for installation, Installation site is accurate and can easily be accommodated, a kind of reliable Split type flexible sealed butterfly valve of Open-close sealing effect.

The technical issues of the utility model, is achieved through the following technical solutions：

A kind of Split type flexible sealed butterfly valve, including valve body, valve seat cylinder, butterfly plate, valve rod and clip handle；The valve body The interior valve chamber channel for being equipped with horizontal perforation, valve seat cylinder is horizontal to be mounted in valve chamber channel, and butterfly plate is movably arranged in valve seat cylinder；Institute The valve rod lower end stated is fixedly connected with butterfly plate across valve seat cylinder, and valve rod upper end passes through valve body to connect clip handle；The clip handle Hand-drive valve rod drives butterfly plate to make locating rotation, is constituted between the butterfly plate and the valve seat cylinder and contacts keying, the valve seat cylinder Outer circumference surface, which is equipped with, is embedded in fixed valve seat by back ring, which is connected by back ring by the valve seat cylinder integral coating inside Integrally；The valve seat cylinder is inlaid in by back ring positioning in valve chamber channel through valve seat.

The valve seat cylinder outer circumference surface is equipped with two pass annular groove, which is same axial line with valve seat cylinder, and The outside cell wall of two pass annular groove is equipped with embedded fixed valve seat in per pass annular groove respectively as the seal face at valve seat cylinder both ends By back ring, two valve seats are linked into an integrated entity by the valve seat cylinder integral coating inside by back ring.

A circle convex ribs are equipped in the middle part of the inner wall in the valve chamber channel, described two valve seats are on the outer circumference surface of back ring It is equipped with a circle protrusive board, mounting groove is formed between protrusive board of two valve seats by back ring；The valve seat cylinder is through mounting groove and valve The convex ribs in chamber channel constitute positioning and are embedded in.

The valve seat cylinder inner peripheral surface is convex equipped with sealing, and the sealing is convex to be contacted with the outer circumference surface of butterfly plate composition Sealing opens and closes.

The valve body is made of upper valve body and lower valve body, which is the horizontal axis line along valve chamber channel Upper and lower subdivision forms, and the screw being connected and fixed is equipped between upper and lower valve body.

Compared with prior art, the utility model is mainly equipped with embedded fixed valve seat on valve seat cylinder outer circumference surface and leans on Back ring, the valve seat are linked into an integrated entity by back ring by valve seat cylinder integral coating inside, and valve seat cylinder is embedding by back ring positioning through valve seat In valve chamber channel；Therefore, the valve chamber mounted on valve body that can make the positioning of valve seat cylinder by adding valve seat by back ring, stablize In channel, even if occurring pressure inside pipeline and generating squeezing action to valve seat cylinder, valve seat cylinder will not be made to be generated in valve body Displacement falls off, to which the contact Open-close sealing performance between butterfly plate and valve seat cylinder be effectively ensured；Meanwhile valve body is by upper and lower Subdivision and formed split structure upper valve body and lower valve body constitute, then first valve seat cylinder and butterfly plate can be installed, then install Upper and lower valve body, this mounting means are more convenient, moreover it is possible to ensure installation site accuracy and the adjusting for being easily installed position, from And promote the Open-close sealing effect of butterfly valve.

Description of the drawings

Fig. 1 is the schematic cross-sectional view of the utility model.

Fig. 2 is A-A sectional views of Fig. 1.

Fig. 3 depends on the schematic cross-sectional view that back ring links into an integrated entity for seat ring integral coating valve seat.

Specific implementation mode

It will again elaborate to the utility model embodiment by above-mentioned attached drawing below.

As shown in Fig. 1 ~ Fig. 3,1. valve bodies, 11. upper valve bodies, 111. convex ribs, 12. lower valve bodies, 13. valve chamber channels, 14.O types Circle, 15. plug screws, 2. butterfly plates, 3. valve seat cylinders, 31. seal convex, 4. valve seats by back ring, 41. protrusive boards, 42. mounting grooves, 5. valve rods, 6. Clip handle, 7. tooth plates, 71. baffles, 8. hexagon-headed bolts, 9. taper bolts, 10. screws.

A kind of Split type flexible sealed butterfly valve belongs to the wafer type butterfly valve in butterfly valve technical field as shown in Figure 1 and Figure 2, Its structure is mainly made of valve body 1, valve seat cylinder 3, butterfly plate 2, valve rod 5 and clip handle 6 etc..

Horizontal perforation, cylinder valve chamber channel 13 is equipped in the valve body 1；The valve body 1 is by upper valve Body 11 and lower valve body 12 are constituted, which is that the horizontal axis line along valve chamber channel 13 is made subdivision up and down and formed, it is upper, After the completion of lower valve body splicing, it is connected and fixed between the two by more screws 10；And valve body 1 is used into split structure, energy Facilitate the Fast Installation of valve seat cylinder 3 and butterfly plate 2 in valve chamber channel 13, and ensures peace of two components in valve chamber channel 13 Holding position accuracy and the adjusting for being easily installed position.

The valve seat cylinder 3 is the cylindrical drum in identical valve chamber channel, is mainly made of flexible sealing material, the valve seat cylinder 3 is horizontal in valve chamber channel 13, two pass annular groove is equipped on 3 outer circumference surface of valve seat cylinder, which is with valve seat cylinder 3 Same axial line, and the outside cell wall of two pass annular groove is respectively as the seal face at 3 both ends of valve seat cylinder, to ensure that butterfly valve is mounted on Sealing function is played when pipeline；Embedded fixed valve seat is equipped in per pass annular groove leans on back ring 4, two valve seats to depend on back ring such as Fig. 3 It is shown to be linked into an integrated entity inside by 3 integral coating of valve seat cylinder.

Meanwhile two valve seats are equipped with a circle protrusive board 41 on the outer circumference surface of back ring 4, the position of the protrusive board is proximate to valve The outside for seating against 4 outer circumference surface of back ring just forms a mounting groove 42 between protrusive board 41 of two valve seats by back ring；Accordingly As soon as valve chamber channel 13 inner wall in the middle part of be equipped with circle convex ribs 111, then valve seat cylinder 3 can through two valve seats lean on back ring 4 constitute peace Tankage 42 and with the convex ribs in valve chamber channel 13 111 constitute positioning be embedded in, can thus make valve seat cylinder 3 positioning, stablize be mounted on In the valve chamber channel 13 of valve body 1, even if occurring pressure inside pipeline and generating squeezing action to valve seat cylinder 3, valve seat will not be made Cylinder 3 generates displacement or is fallen off in valve body 1, to which the contact Open-close sealing between butterfly plate 2 and valve seat cylinder 3 be effectively ensured Energy.

The butterfly plate 2 is movably arranged in valve seat cylinder 3, which is disc, is set on 3 inner peripheral surface of valve seat cylinder There is sealing convex 31, convex can be constituted with the outer circumference surface of disc butterfly plate 2 of the sealing contacts sealing keying, to promote opening for butterfly plate 2 Close sealing effect.

The valve rod 5 is vertically installed in upper valve body 11, and 5 lower end of valve rod passes through valve seat cylinder 3 to enter 2 center of butterfly plate In mounting hole, there is taper bolt 9 to be connected between 5 lower end of valve rod and butterfly plate 2 and form fixation；5 lower end of valve rod has been In the full mounting hole across butterfly plate 2 and the bottom outlet into lower valve body 12, such design structure can guarantee pair that valve rod 5 rotates In；The bottom outlet is the through-hole structure for running through lower valve body 12 up and down, and sealing envelope is given in bottom outlet lower end by plug screw 15 and O-ring 14 It closes.

5 upper end of valve rod connects clip handle 6 across 11 top of upper valve body, between valve rod 5 and upper valve body 11 Be additionally provided with two pass O-ring 14, using the dynamic seal as valve rod 5, clip handle 6 can driving stem 5 rotate, and then synchronous belt Dynamic butterfly plate 2 rotates and is formed between valve seat cylinder 3 and contact or be detached from, to play the role of butterfly valve keying and flow-rate adjustment；Meanwhile The tooth plate 7 that clip handle 6 can be fixedly mounted on 11 top surface of upper valve body with hexagon-headed bolt 8 again constitutes cooperation, that is, passes through tooth plate energy The turned position of butterfly plate 2 is accurately locked, baffle 71 is additionally provided on tooth plate 7, the rotational angle for positioning butterfly plate 2, usually 0 ° ~ 90 °, when butterfly plate 2 rotates to 90 °, butterfly valve reaches maximum opening.

The utility model compares traditional wafer type butterfly valve, both has the accuracy of the convenience and installation site of installation, The installation site for being easily installed component again is adjusted, and Open-close sealing effect is very reliable.

The above is only specific embodiment of the utility model, it should be appreciated by those skilled in the art that any and reality The equivalent structure design of example is applied, should be included within the scope of protection of this utility model.

Claims (5)

1. a kind of Split type flexible sealed butterfly valve, including valve body（1）, valve seat cylinder（3）, butterfly plate（2）, valve rod（5）With clip handle （6）；The valve body（1）The interior valve chamber channel for being equipped with horizontal perforation（13）, valve seat cylinder（3）It is horizontal to be mounted on valve chamber channel（13） It is interior, butterfly plate（2）It is movably arranged on valve seat cylinder（3）It is interior；The valve rod（5）Lower end passes through valve seat cylinder（3）It is fixedly connected with butterfly plate （2）, valve rod（5）Upper end passes through valve body（1）Connect clip handle（6）；The clip handle driving stem（5）Drive butterfly plate （2）Make locating rotation, the butterfly plate（2）With the valve seat cylinder（3）Between constitute contact open and close, it is characterised in that the valve seat cylinder （3）Outer circumference surface, which is equipped with, is embedded in fixed valve seat by back ring（4）, the valve seat is by back ring by the valve seat cylinder（3）Integral coating It links into an integrated entity inside；The valve seat cylinder（3）Back ring is leaned on through valve seat（4）Positioning is inlaid in valve chamber channel（13）It is interior.

2. a kind of Split type flexible sealed butterfly valve according to claim 1, it is characterised in that the valve seat cylinder（3）Outer circle Circumferential surface is equipped with two pass annular groove, the two pass annular groove and valve seat cylinder（3）Outside cell wall for same axial line, and two pass annular groove is distinguished As valve seat cylinder（3）The seal face at both ends is equipped with embedded fixed valve seat in per pass annular groove and leans on back ring（4）, two valve seats By back ring by the valve seat cylinder（3）Integral coating links into an integrated entity inside.

3. a kind of Split type flexible sealed butterfly valve according to claim 2, it is characterised in that the valve chamber channel（13） Inner wall in the middle part of be equipped with one circle convex ribs（111）, two valve seats are by back ring（4）Outer circumference surface on be equipped with a circle protrusive board （41）, back ring is leaned in two valve seats（4）Protrusive board（41）Between form mounting groove（42）；The valve seat cylinder（3）Through mounting groove （42）With valve chamber channel（13）Convex ribs（111）Positioning is constituted to be embedded in.

4. a kind of Split type flexible sealed butterfly valve according to claim 1, it is characterised in that the valve seat cylinder（3）Inner circle It is convex that circumferential surface is equipped with sealing（31）, the sealing is convex with the butterfly plate（2）Outer circumference surface constitute contact sealing open and close.

5. a kind of Split type flexible sealed butterfly valve according to claim 1, it is characterised in that the valve body（1）It is by upper Valve body（11）And lower valve body（12）It constitutes, which is along valve chamber channel（13）Horizontal axis line up and down subdivision form, The screw being connected and fixed is equipped between upper and lower valve body（10）.