CN206309963U

CN206309963U - A kind of butterfly valve and pipe-line system

Info

Publication number: CN206309963U
Application number: CN201621439877.1U
Authority: CN
Inventors: 邹江华
Original assignee: Suzhou Aiertai Fluid Control Co Ltd
Current assignee: Suzhou Aiertai Fluid Control Co Ltd
Priority date: 2016-12-26
Filing date: 2016-12-26
Publication date: 2017-07-07
Anticipated expiration: 2026-12-26

Abstract

The utility model is related to valve manufacture field, it is intended to which solving butterfly valve in the prior art cannot seal, and the problem of seepage occur, there is provided a kind of butterfly valve and pipe-line system.Outer peripheral face at least a portion of dish plate is set to the utility model the contact surface of taper, when butterfly valve is closed, contact surface is in sealing contact with sealing ring, the first surface of valve body near contact surface larger diameter end, the smaller diameter end of the second surface of valve body near contact surface.The spacing for being smaller than second surface and the smaller diameter end of contact surface of the larger diameter end of first surface and contact surface.Current near first surface runner flow into when, can to dish plate produce an auxiliary force so that dish plate crush seal circle is sealed.When being flowed into from the runner near second surface when current, hydraulic pressure can produce an auxiliary force to sealing ring so that sealing ring produces a certain amount of displacement, and then extruding dish plate to be sealed.So as to realize two way seal, good sealing effectiveness is reached.

Description

A kind of butterfly valve and pipe-line system

Technical field

The utility model is related to valve manufacture field, in particular to a kind of butterfly valve and pipe-line system.

Background technology

Butterfly valve refers to that closure member is disk, and a kind of valve of open and close is reached around valve shaft rotation, main on pipeline Play cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, is rotated around the axis of its own in valve body, from And reach the purpose for opening and closing or adjusting.Existing butterfly valve is only capable of realizing one-way sealing often occur sealing, and seepage occurs Situation.

Utility model content

The utility model aims to provide a kind of butterfly valve, cannot be sealed with solving butterfly valve of the prior art, seepage occurs Problem.

Another object of the present utility model is to provide a kind of pipe-line system for possessing above-mentioned butterfly valve.

What embodiment of the present utility model was realized in：

A kind of butterfly valve, it includes valve body, dish plate, first rotating shaft and sealing ring.It is provided with valve body and is limited by its inner surface Insertion cylindric runner, sealing ring is arranged at the inner surface of valve body, and the inner surface of valve body is included positioned at sealing ring both sides First surface and second surface.Dish plate is located in runner, and outer peripheral face at least a portion of dish plate constitutes the contact surface of taper, first Rotating shaft runs through the wall of valve body in the radial direction valve body, and is connected to open or close butterfly valve with dish plate.Work as butterfly valve When being closed, contact surface is in sealing contact with sealing ring, and near the larger diameter end of contact surface, second surface leans on first surface The smaller diameter end of proximity contacting surface.The larger diameter end of first surface and contact surface to be smaller than second surface small straight with contact surface The spacing at footpath end.

Embodiment of the present utility model works as butterfly by the way that the outer peripheral face of dish plate at least a portion to be set to the contact surface of taper When valve is closed, contact surface is in sealing contact with sealing ring, first surface near contact surface larger diameter end, second surface Near the smaller diameter end of contact surface.To realize being smaller than second surface and contacting for first surface and the larger diameter end of contact surface The spacing of the smaller diameter end in face.So that when butterfly valve is closed, current from the runner near first surface flow into when, by An auxiliary force can be produced to dish plate so that dish plate crush seal circle is sealed in hydraulic pressure.When butterfly valve is closed, Current near second surface runner flow into when, hydraulic pressure can to sealing ring produce an auxiliary force so that sealing ring produce one Quantitative displacement, so extrude dish plate sealed.Embodiment of the present utility model can realize two way seal, reach good Sealing effectiveness.

In one embodiment of the present utility model：

When above-mentioned butterfly valve is closed, contact surface is 5 ° to 15 ° with the angle of the axis of runner.

In one embodiment of the present utility model：

When above-mentioned butterfly valve is closed, contact surface is 12 ° with the angle of the axis of runner.

In one embodiment of the present utility model：

It is above-mentioned in a radially inward direction, the thickness of sealing ring is gradually reduced.

In one embodiment of the present utility model：

The inner surface of above-mentioned sealing ring is arranged at intervals with multiple annular recess.

In one embodiment of the present utility model：

Above-mentioned sealing ring inside has ring cavity.

In one embodiment of the present utility model：

Above-mentioned butterfly valve also includes the arch sheet that two ends are connected with dish plate side, part and dish plate between the two ends of arch sheet Between there is gap, butterfly valve also includes being arranged in gap, and connection arch sheet and dish plate reinforcement.

In one embodiment of the present utility model：

Above-mentioned first rotating shaft is detachably connected with dish plate.

In one embodiment of the present utility model：

Above-mentioned butterfly valve also includes the second relative with first rotating shaft and coaxial rotating shaft, and the second rotating shaft can through valve body and dish plate Releasably connect.

A kind of pipe-line system, it includes above-mentioned any one butterfly valve.

The beneficial effect of the utility model embodiment is：

The pipe-line system that embodiment of the present utility model is provided, including above-mentioned butterfly valve, thus also possess can realize it is double To sealing, good sealing beneficial effect is reached.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the utility model embodiment, below will be to be used needed for embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also Other related accompanying drawings are obtained with according to these accompanying drawings.

Fig. 1 is overall structure diagram of the butterfly valve of the offer of the utility model embodiment 1 under the first visual angle；

Fig. 2 is the structural representation of the valve body of the butterfly valve that the utility model embodiment 1 is provided；

Fig. 3 is the III-III of Fig. 2 to sectional view；

Fig. 4 is the structural representation of the sealing ring of the butterfly valve that the utility model embodiment 1 is provided；

Fig. 5 is the V-V of Fig. 4 to sectional view；

Fig. 6 is the structural representation of the dish plate of the butterfly valve that the utility model embodiment 1 is provided；

Fig. 7 is the VII-VII of Fig. 6 to sectional view；

Fig. 8 is overall structure diagram of the butterfly valve of the offer of the utility model embodiment 1 under the second visual angle；

Fig. 9 is the IX-IX of Fig. 8 to sectional view；

Figure 10 is enlarged drawing at the X of Fig. 9.

Icon：10- butterfly valves；100- valve bodies；110- runners；120- necking grooves；130- first rotating shafts hole；The rotating shafts of 140- second Hole；150- first surfaces；160- second surfaces；170- flanges；172- through holes；200- sealing rings；210- grooves；220- cavitys； 300- dish plates；310- bodies；312- contact surfaces；3121- larger diameter ends；3123- smaller diameter ends；320- arch sheets；322- the 3rd Shaft hole；The screwed holes of 3221- first；The bolts of 3222- first；The shaft holes of 324- the 4th；The screwed holes of 3243- second；3244- second Bolt；330- gaps；The cavitys of 332- first；The cavitys of 334- second；The cavitys of 336- the 3rd；The reinforcements of 340- first；350- second Reinforcement；400- first rotating shafts；The rotating shafts of 500- second.

Specific embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally described in accompanying drawing herein and The component of the utility model embodiment for showing can be arranged and designed with a variety of configurations.

Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.

, it is necessary to illustrate in description of the present utility model, if there is term " vertical ", " level ", " interior ", " outward " etc. The orientation or position relationship of instruction are that, based on orientation shown in the drawings or position relationship, or the utility model product is when using The orientation or position relationship usually put, are for only for ease of description the utility model and simplify description, rather than instruction or dark Showing the device or element of meaning must have specific orientation, with specific azimuth configuration and operation therefore it is not intended that right Limitation of the present utility model.If being retouched additionally, occurring term " first ", " second " etc. in description of the present utility model and being only used for differentiation State, and it is not intended that indicating or implying relative importance.

If additionally, occur the terms such as term " vertical " in description of the present utility model to be not offered as requiring that part definitely hangs Hang down, and can be to be slightly tilted.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, if there is art Language " setting ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or It is integrally connected；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two companies of element internal It is logical.For the ordinary skill in the art, can understand that above-mentioned term is specific in the utility model with concrete condition Implication.

Embodiment 1

Fig. 1 is overall structure diagram of the butterfly valve 10 of the offer of the utility model embodiment 1 under the first visual angle.Refer to Fig. 1, embodiment of the present utility model 1 provides a kind of butterfly valve 10, and it includes valve body 100, sealing ring 200, dish plate 300 and first turn Axle 400.

Fig. 2 is the structural representation of the valve body 100 of the butterfly valve 10 that the utility model embodiment 1 is provided, and Fig. 3 is in Fig. 2 The sectional view of III-III.Refer to Fig. 2 and combine Fig. 3, valve body 100 is generally circular, the inner surface of valve body 100 is limited and passed through Logical cylindric runner 110, first rotating shaft hole 130 radially is provided with the edge of the radial direction of valve body 100, The second relative with first rotating shaft hole 130 and coaxial shaft hole 140 is additionally provided with valve body 100.First rotating shaft hole 130 and second Wall of the shaft hole 140 through valve body 100.The shaft hole of first rotating shaft hole 130 and second is close in the inner surface of valve body 100 140 position is provided with necking groove 120.The both sides of necking groove 120 are first surface 150 and second surface 160.First surface 150 near the shaft hole 140 of first rotating shaft hole 130 and second, and second surface 160 is away from first rotating shaft hole 130 and second turn Axis hole 140.It is additionally provided with around valve body 100 to the flange 170 set away from axis direction in valve body 100, is set through flange 170 It is equipped with multiple through holes 172.

Fig. 4 is the structural representation of the sealing ring 200 of the butterfly valve 10 that the utility model embodiment 1 is provided, and Fig. 5 is in Fig. 4 The sectional view of V-V.Refer to Fig. 4 and combine Fig. 5, sealing ring 200 is arranged on the necking groove 120 (figure 3 illustrates) of valve body 100 Interior, along necking groove 120, thickness is gradually reduced sealing ring 200 from inside to outside.There are multiple ring-types in the inner surface setting of sealing ring 200 Groove 210, offers ring cavity 220 inside sealing ring 200.It should be noted that in embodiment of the present utility model 1 The necking groove 120 for installing sealing ring 200 is set on valve body 100, is for preferably stabilized seal circle 200.It should be understood that The mounting groove for installing sealing ring 200 can be directly disposed as general according to the demand of user, in other specific embodiments Groove.

Fig. 6 is the structural representation of the dish plate 300 of the butterfly valve 10 that the utility model embodiment 1 is provided, and Fig. 7 is in Fig. 6 The sectional view of VII-VII.Refer to Fig. 6 and combine Fig. 7, dish plate 300 includes body 310, the generally circular plate knot of body 310 Structure.The outer peripheral face of body 310 is provided with the contact surface of the taper that diameter in the axial direction is gradually reduced of stretching out from body 310 312, conical contact surface construction 312 possesses larger diameter end 3121 and smaller diameter end 3123.Dish plate 300 also includes two ends and body The arch sheet 320 of 310 sides connection, has gap 330 between the part and body 310 between the two ends of arch sheet 320.Dish plate 300 also include being arranged in gap 330, and connect first reinforcement 340 and the second reinforcement of arch sheet 320 and body 310 350.First reinforcement 340 is vertically to the company that arch sheet 320 is connected the two ends of body 310 with the setting direction of the second reinforcement 350 Line.First reinforcement 340 and the second reinforcement 350 by gap 330 points be the first cavity 332, second cavity 334 of both ends open And the 3rd cavity 336.Two ends being connected with body 310 in arch sheet 320 are relatively set with coaxial 3rd rotating shaft respectively The shaft hole 324 of hole 322 and the 4th.The first screwed hole 3221 is also offered vertically on the outer wall of the 3rd shaft hole 322, The second screwed hole 3243 is also offered on the outer wall of four shaft holes 324 vertically.It should be noted that in implementation of the present utility model It is to reinforce to set arch sheet 320, the first reinforcement 340 and the second reinforcement 350 on the body 310 of dish plate 300 in example 1 Dish plate 300, it is possible to understand that, it is also possible to according to the demand of user, in other specific embodiments, it is not provided with arch sheet 320, One reinforcement 340 and the second reinforcement 350.Also need to explanation, in embodiment of the present utility model 1 arch sheet 320 with Two reinforcements, the first reinforcement 340 and the second reinforcement 350 are provided between body 310.May be appreciated, it is also possible to According to the demand of user, in other specific embodiments, the quantity of reinforcement is not limited to two, it is also possible to set one or More than two reinforcement.It should be noted that will be set between arch sheet 320 and body 310 in embodiment of the present utility model 1 Be equipped with gap 330, be in order to realize when dish plate 300 under the drive of rotating shaft open valve when be easy to current in time flow into or Outflow.May be appreciated, it is also possible to according to the demand of user, in other specific embodiments, it is also possible to be not provided with gap 330.

Fig. 8 is overall structure diagram of the butterfly valve 10 of the offer of the utility model embodiment 1 under the second visual angle, and Fig. 9 is The sectional view of IX-IX in Fig. 8.Refer to Fig. 8 and combine Fig. 9, first rotating shaft hole 130 of the first rotating shaft 400 on valve body 100 It extend into the 3rd shaft hole 322 of dish plate 300, first rotating shaft 400 rotatably connects with the first rotating shaft hole 130 on valve body 100 Connect.3rd shaft hole 322 of first rotating shaft 400 and dish plate 300 is by the first bolt in the first screwed hole 3221 3222 are fixedly connected.It can be seen in figure 9 that butterfly valve 10 also includes coaxial second turn being oppositely arranged with first rotating shaft 400 Axle 500.Second shaft hole 140 of second rotating shaft 500 on valve body 100 is extend into the 4th shaft hole 324 of dish plate 300, Second rotating shaft 500 is rotatably connected with the second shaft hole 140 on valve body 100.The 4th turn of second rotating shaft 500 and dish plate 300 Axis hole 324 is fixedly connected by the second bolt 3244 in the second screwed hole 3243.It should be noted that in this practicality Two rotating shafts are set in new embodiment 1 to be easy to rotate dish plate 300, realize opening or closing for cylindric runner 110.Also may be used With the demand according to user, in other specific embodiments, a rotating shaft is only set.

It is due to existing butterfly valve it has been investigated that why existing butterfly valve occurs cannot seal, the problem of seepage Design is only capable of realizing one-way sealing so that butterfly valve when a direction intake, hydraulic pressure can produce auxiliary force to dish plate so that Realize sealing.When the opposite side of butterfly valve has pressure to produce, butterfly valve will be offset away from sealing ring, in this case often The other direction of dish plate can be caused cannot be sealed, the phenomenon for leakage occur.Figure 10 is enlarged drawing at the X of Fig. 9, continues referring to figure 9 and combine Figure 10.A part for the outer peripheral face of body 310 of dish plate 300 is set to taper in embodiment of the present utility model 1 Contact surface 312, when rotating dish plate 300 and closing cylindric runner 110, contact surface 312 is in sealing contact with sealing ring 200. Angle between the axis of contact surface 312 and runner 110 is 5 ° to 15 °, by contact surface 312 and runner 110 in the present embodiment 1 Axis between angle be set to 12 °.It should be noted that can also be according to the demand of user, in other specific embodiments The angle of middle setting is not limited to 12 °.Contact surface 312 possesses larger diameter end 3121 and smaller diameter end 3123.Larger diameter end 3121 Near first surface 150, smaller diameter end 3123 is near second surface 160.The larger diameter end of first surface 150 and contact surface 312 3121 spacing for being smaller than second surface 160 and the smaller diameter end 3123 of contact surface 312.Current are near first surface When 150 runner 110 is flowed into, hydraulic pressure can produce an auxiliary force to dish plate 300 so that the crush seal circle 200 of dish plate 300 is carried out Sealing.When being flowed into from the runner 110 near second surface 160 when current, hydraulic pressure can produce an auxiliary force to sealing ring 200, So that sealing ring 200 produces a certain amount of displacement, and then extruding dish plate 300 to be sealed.So as to realize two way seal, reach good Good sealing effectiveness.

A kind of pipe-line system, including above-mentioned butterfly valve 10 are additionally provided in the present embodiment 1, thus it is also two-way with realizing Sealing, reaches the beneficial effect of good sealing.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims

1. a kind of butterfly valve, it is characterised in that：

Including valve body, dish plate, first rotating shaft and sealing ring；

The cylindric runner of the insertion limited by its inner surface is provided with the valve body；

The sealing ring is arranged at the inner surface of the valve body, and the inner surface of the valve body is included positioned at the sealing ring both sides First surface and second surface；

The dish plate is located in the runner；Outer peripheral face at least a portion of the dish plate constitutes the contact surface of taper；

The first rotating shaft the valve body in the radial direction through the valve body wall, and with the dish plate be connected To open or close the butterfly valve；

When the butterfly valve is closed, the contact surface is in sealing contact with the sealing ring；The first surface is close to The larger diameter end of the contact surface；Smaller diameter end of the second surface near the contact surface；The first surface with it is described The spacing for being smaller than the second surface and the smaller diameter end of the contact surface of the larger diameter end of contact surface.

2. butterfly valve according to claim 1, it is characterised in that：

When the butterfly valve is closed, the contact surface is 5 ° to 15 ° with the angle of the axis of the runner.

3. butterfly valve according to claim 2, it is characterised in that：

When the butterfly valve is closed, the contact surface is 12 ° with the angle of the axis of the runner.

4. butterfly valve according to claim 1, it is characterised in that：

In a radially inward direction, the thickness of the sealing ring is gradually reduced.

5. butterfly valve according to claim 4, it is characterised in that：

The inner surface of the sealing ring is arranged at intervals with multiple annular recess.

6. butterfly valve according to claim 5, it is characterised in that：

The sealing ring inside has ring cavity.

7. butterfly valve according to claim 1, it is characterised in that：

The butterfly valve also includes the arch sheet that two ends are connected with the dish plate side；Part between the two ends of the arch sheet with There is gap between the dish plate；

The butterfly valve also includes being arranged in the gap, and connects the reinforcement of the arch sheet and the dish plate.

8. butterfly valve according to claim 1, it is characterised in that：

The first rotating shaft is detachably connected with the dish plate.

9. butterfly valve according to claim 8, it is characterised in that：

The butterfly valve also includes the second relative with the first rotating shaft and coaxial rotating shaft；Second rotating shaft runs through the valve body It is detachably connected with the dish plate.

10. a kind of pipe-line system, it is characterised in that：

The pipe-line system includes the butterfly valve as described in claim 1 to 9.