CN207539351U - Flap and shut-off valve - Google Patents

Abstract

The utility model provides a kind of flap and shut-off valve, is related to the technical field of valve, including flap main body；The mounting groove for being connect with valve rod is provided in the flap main body；Sealing is circumferentially provided in the flap main body；The flap main body lower end is provided with tip；Flap main body is the lug boss of arc between the tip and the sealing.The flap of flap and shut-off valve provided by the utility model has lug boss, changes previous sealing surface in plane or circular conical surface；Such flap is being applied when on shut-off valve, flap with valve rod lift when, gap between flap and valve seat is slowly increased, the flow of shut-off valve can slowly change in this way, from achieving the purpose that adjustable cut-off valve flow, relative to present shut-off valve, the precision for adjusting flow is greatly improved.

Description

Flap and shut-off valve

Technical field

The utility model is related to the technical field of valve, more particularly, to a kind of flap and shut-off valve.

Background technology

Valve be in fluid system, for control the direction of fluid, pressure, flow device, be to make piping and equipment Interior medium (liquid, gas, powder) flowing or stopping and the device that its flow can be controlled.

Valve is control unit in pipeline fluid transport system, for changing access section and media flow direction, is had The functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.For the valve of fluid control, from simplest shut-off valve It is various to various valves, kind and specification used in extremely complex robot control system(RCS).

The inside nominal diameter of valve reaches greatly the industrial pipeline valve of 10m from atomic small gauge valve to latus rectum.Available for controlling The various types such as water, steam, oil product, gas, mud, various Korrosionsmediums, liquid metal and radioactive fluid fluidly flow Super-pressure dynamic, that the operating pressure of valve can be from 0.0013MPa to 1000MPa, what operating temperature can be from -270 DEG C is ultralow Temperature is to 1430 DEG C of high temperature.

A variety of kinds of drive can be used in the control of valve, such as manually, electrically, surge, pneumatically, turbine, electromagnetic driven, electromagnetic liquid Dynamic, electro-hydraulic dynamic, air-or liquid-operated, spur gear, umbrella tooth wheel drive etc.；It can be in the effect of pressure, temperature or other forms transducing signal Under, it is acted by scheduled requirement or does not depend on transducing signal and be simply turned on and off, valve is by driving or certainly Motivation structure lifts opening and closing element, slides, swing or rotary motion, so as to change the size of its flow area to realize its control Function.

Shut-off valve is also known as pipe valve valve, belongs to forced seal formula valve, so when valve is closed, it is necessary to apply to flap and press Power is not leaked with forced seal face.When medium is by entering valve below flap, the resistance that overcomes required for operating force is valve The frictional force of bar and filler and the thrust as caused by the pressure of medium, the power of closing valve is bigger than the power of valve opening door, so valve rod Diameter it is big, the failure of valve rod bending otherwise can occur.

It is divided into three kinds by connection mode：Flanged joint, is welded to connect screwed connection.After the valve of self sealss occurs, cut Only the medium flow direction of valve just changes by entering valve chamber above flap, and at this moment under pressure medium effect, the power of closing valve is small, and valve opening The power of door is big, and the diameter of valve rod can be reduced correspondingly.Meanwhile under medium effect, the valve of this form is also relatively tight.

When shut-off valve is opened, the Lift of flap, flows have reached maximum when being the 25%~30% of nominal diameter, Represent that valve has reached fully open position.So the fully open position of shut-off valve, should be determined by the stroke of flap.

The opening and closing element of shut-off valve is the flap of stopper, and sealing is above in plane or the extra large conical surface, center line of the flap along valve seat It is for linear motion.

The forms of motion of valve rod, also have lifting rotation rod-type can be used for the empty gas and water of control, steam, various Korrosionsmediums, The flowing of the various types fluid such as mud, oil product, liquid metal and radiating medium.Therefore, such shut-off valve that shuts off Valve is highly suitable as cutting off or the use that adjusts and throttle.

But shut-off valve is since the sealing surface of flap is in plane or circular conical surface, it, can only coarse adjustment when adjusting flow.

Utility model content

The purpose of this utility model is to provide flap and shut-off valve, to alleviate the skill of cut-off valve regulation traffic ability difference Art problem.

A kind of flap provided by the utility model, including flap main body；It is provided with and is used for and valve in the flap main body The mounting groove of bar connection；

Sealing is circumferentially provided in the flap main body；The flap main body lower end is provided with tip；In the point Flap main body is the lug boss of arc between portion and the sealing.

The utility model also provides a kind of shut-off valve, including valve body, valve deck, pressing plate and handwheel；The valve deck is arranged on institute It states on valve body, the pressing plate is provided on the valve deck, flap described above is arranged in the valve body；

Valve rod is provided in the mounting groove of the flap, described valve rod one end extends to outside the valve body and the handwheel Connection.

Further, port one and port two are provided on the valve body；Two ports are respectively used to connection output Pipeline and intake line.

Further, it is provided with sealing ring between the valve deck and the valve body.

Further, valve seat is provided in the valve body, is provided with what is contacted with the sealing of flap on the valve seat Cut-off portion.

Further, it is arranged with seal receptacle, filler and pressing sleeve successively on the valve rod；And the pressing sleeve is arranged on the pressure Plate lower end.

Further, it is provided with spacer ring between the seal receptacle and filler.

Further, it is provided with the valve clack cover being connect for flap with the valve rod on the flap.

Further, the valve deck is bolted with the valve body by lumen.

Further, the pressing plate and the valve deck are bolted by slip-knot.

The flap of flap and shut-off valve provided by the utility model has lug boss, change previous sealing surface in plane or Person's circular conical surface；Such flap is being applied when on shut-off valve, flap with valve rod lift when, flap and valve seat it Between gap be slowly it is increased, the flow of such shut-off valve can slowly change, from the mesh for reaching adjustable cut-off valve flow , relative to present shut-off valve, the precision for adjusting flow is greatly improved.

Description of the drawings

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.

Fig. 1 is the structure diagram of flap that the utility model embodiment provides；

Fig. 2 is the structure diagram of shut-off valve that the utility model embodiment provides；

Fig. 3 is the partial enlarged view of the A of shut-off valve shown in Fig. 1；

Fig. 4 is the partial enlarged view of the B of shut-off valve shown in Fig. 1.

Icon：100- flap main bodys；101- mounting grooves；102- sealings；103- tips；104- lug bosses； 200- valve seats；201- cut-offs portion；300- ports one；400- ports two；500- valve bodies；600- valve decks；700- is sealed Circle；800- valve clack covers；900- valve rods；110- seal receptacles；120- handwheels；130- pressing sleeves；140- pressing plates；150- slip-knots Bolt；160- fillers；170- spacer rings.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality Novel protected range.

In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition Concrete meaning of the language in the utility model.

Fig. 1 is the structure diagram of flap that the utility model embodiment provides.

As shown in Figure 1, a kind of flap provided by the utility model, including flap main body 100；In the flap main body 100 On be provided with mounting groove 101 for being connect with valve rod 900；

Sealing 102 is circumferentially provided in the flap main body 100；100 lower end of flap main body is provided with tip 103；Flap main body 100 is the lug boss 104 of arc between the tip 103 and the sealing 102.

In some embodiments, the sealing surface of 100 lower end of flap main body is no longer plane or circular conical surface；Flap main body When the sealing surface that 100 lower ends have tip 103 and lug boss 104 to be formed uses in shut-off valve, the stream of shut-off valve can be made The change of amount is slowed down, so as to realize that the more accurate of the flow of shut-off valve is adjusted；Changing present shut-off valve can only coarse adjustment Present situation.

Fig. 2 is the structure diagram of shut-off valve that the utility model embodiment provides；Fig. 3 is the A of shut-off valve shown in Fig. 1 Partial enlarged view；Fig. 4 is the partial enlarged view of the B of shut-off valve shown in Fig. 1.

As shown in figs 2-4, the utility model also provides a kind of shut-off valve, including valve body 500, valve deck 600, pressing plate 140 With handwheel 120；The valve deck 600 is arranged on the valve body 500, and the pressing plate 140 is provided on the valve deck 600, on The flap is stated to be arranged in the valve body 500；

Valve rod 900 is provided in the mounting groove 101 of the flap, described 900 one end of valve rod extends to the valve body 500 It is connect outside with the handwheel 120.

By rotation hand wheel 120, valve rod 900 is made to apply torque, valve rod 900 applies pressure to flap in the axial direction, Valve clack sealing surface is made to be fitted closely with 200 sealing surface of valve seat, prevents medium along slot leakage between sealing surface.

The motion mode of valve rod 900 has elevating lever-type, and valve rod 900 lifts, and handwheel 120 does not lift；Also there is lifting rotation bar Rotation and lifting, nut are arranged on valve body 500 together for formula, handwheel 120 and valve rod 900.

The lifting of valve rod 900 is realized by the handwheel 120 being arranged on valve rod 900；Handwheel 120 can also pass through worm gear snail Bar connects valve rod 900, and the setting direction of such handwheel 120 can be side, when in use, facilitate rotation hand wheel 120.

In some embodiments, valve deck 600 is provided on valve body 500, pressing plate 140 is arranged on valve deck 600；Valve rod 900 Through valve deck 600 and pressing plate 140, the both ends of valve rod 900 connect flap and handwheel 120 respectively, by the rotation of handwheel 120, make Valve rod 900 is promoted, so as to fulfill the adjusting of shut-off valve flow.

There is mounting groove 101 on flap；Valve rod 900 is mounted in mounting groove 101, connection mode dismountable in this way, After flap abrasion, it is impossible to when closing shut-off valve, be convenient for changing flap.

As shown in Fig. 2, on above-described embodiment basis, further, port 1 is provided on the valve body 500 With port 2 400；Two ports are respectively used to connection output pipe and intake line.

In some embodiments, 500 both ends of valve body are respectively arranged with port 1 and port 2 400；Two ports can be with Connection flows into the intake line of valve body 500 and the output pipe of medium outflow valve body 500 for medium respectively；Ended by controlling Valve realizes the beginning or termination of medium conveying.

General valve uses flanged joint with other pipelines；It can also make to folder connection, butt welding connection, be threadedly coupled, card Cover the types of attachment such as connection, clamp connection.

Flanged joint includes smooth formula, for the not high valve of pressure.It processes more convenient；It is lenticular, operating pressure compared with Height, hard packing in can be used, tongue and groove can be used and be plastically deformed larger washer, and wide, sealing effect is used in Korrosionsmedium Fruit is preferable, ring joint：Make washer with oval metal ring, be used in the kg/cm of operating pressure >=64 valve or High temperature valve.

On above-described embodiment basis, further, sealing is provided between the valve deck 600 and the valve body 500 Circle 700.

In some embodiments, sealing ring 700 is provided between valve body 500 and valve deck 600；In valve body 500 and valve deck 600 On be both provided with inner groovy, and the inner groovy on valve body 500 and valve deck 600 is corresponding；Sealing ring 700 is arranged on inner groovy In；Sealing ring 700 can effectively play the effect of sealing in this way；Prevent medium from being leaked between valve body 500 and valve deck 600.

As shown in figure 3, on above-described embodiment basis, further, valve seat 200 is provided in the valve body 500, The cut-off portion 201 contacted with the sealing of flap 102 is provided on the valve seat 200.

In some embodiments, for valve seat 200 in valve body 500, flap contacts or is implemented separately shut-off valve with valve seat 200 Closing and unlatching；The sealing 102 of flap can be good at being bonded with the cut-off portion 201 on valve seat 200；So as to fulfill cut-off Valve shuts off；When opening stop valve, by rotation hand wheel 120, make valve rod 900 that flap be driven to rise, flap and cut-off The gap that portion 201 is formed is gradually increased, the flow of shut-off valve can be made slowly to change in this way, so as to more accurate Adjustable cut-off valve flow, solve the problems, such as that present shut-off valve can only coarse adjustment.

Flap has certain radian, in flap during rising, valve from sealing 102 to 104 top of lug boss Valve is gradually increased with the gap that cut-off portion 201 is formed.

There is valve seat 200 in valve body 500, through-hole is provided among valve seat 200, spool is in the top of through-hole, the valve of spool The up and down motion of bar 900 makes flap block through-hole, can cut off the conveying of medium in this way, when medium is water, that is, stops The conveying of water.

By the raising and lowering of valve rod 900, the distance between flap and through-hole are adjusted, so as to fulfill the size to flow Adjusting.

Valve rod 900 is connect with handwheel 120, by the rotation of 120 driving stem 900 of handwheel, so as to rise valve rod 900 Or decline, such flap and lead to the hole site relationship realize the adjusting of flow.

As shown in figure 4, on above-described embodiment basis, further, it is arranged with seal receptacle successively on the valve rod 900 110th, filler 160 and pressing sleeve 130；And the pressing sleeve 130 is arranged on 140 lower end of pressing plate.

In some embodiments, seal receptacle 110, filler 160 and pressing sleeve 130 are provided on valve rod 900, filler 160 is located at Between seal receptacle 110 and pressing sleeve 130；It is pressing sleeve 130,160 and of filler successively from top to bottom in the intermediate perforation of valve deck 600 Seal receptacle 110；Valve rod 900 can be passed through in centre；Pressing plate 140 is connect with pressing sleeve 130.

On above-described embodiment basis, further, spacer ring is provided between the seal receptacle 110 and filler 160 170。

Setting spacer ring 170 can divide equally the axial compressive force of pressing sleeve 130, it is ensured that the periphery uniform force of filler 160 is also protected It is indeformable after the card sealing stress of filler 160, prevent the uniform extrusion damage of unbalance stress；Ensure valve rod 900 in turning course In the position at center.

On above-described embodiment basis, further, it is provided on the flap and connects for flap and the valve rod 900 The valve clack cover 800 connect.

After valve rod 900 is mounted in the mounting groove 101 of flap in some embodiments, valve clack cover 800 and flap are connected It connects, its valve rod 900 is made securely to be connect with flap；And the flap that this mode connects is dismantled with the card of valve rod 900；Flap wear with Afterwards, the convenient replacement to flap.

On above-described embodiment basis, further, the valve deck 600 is connected with the valve body 500 by lumen bolt It connects.

In some embodiments, valve deck 600 and valve body 500 are bolted by lumen；Valve can be easily carried out in this way The connection and fractionation of lid 600 and valve body 500；When needing to safeguard valve deck 600, facilitate valve deck 600 and valve body 500 phase separations.

It can facilitate in this way and the filler 160 in valve deck 600 is replaced, so as to improve working efficiency, increase valve Service life ensures the leakproofness of valve, reduces the leakage of medium.

Valve deck below 600 for valve body 500, the lumen nut and lumen stud of lumen bolt by valve deck 600 and valve body 500 into Row is mechanically fixed, seal receptacle 110 and filler 160, along with seal receptacle 110 forms the sealing structure of valve.

On above-described embodiment basis, further, the pressing plate 140 and the valve deck 600 pass through slip-knot bolt 150 Connection.

In some embodiments, it is provided with valve deck 600 on valve body 500；Valve deck 600 passes through removably with valve body 500 Connection.Pressing plate 140 is connect with valve deck 600 by slip-knot bolt 150, and pressing plate 140 downwards applies pressing sleeve 130 downward power, pressure 130 pairs of 160 applied forces of filler are covered, filler 160 is made to keep due tightness and leakproofness, prevents dielectric leakage.

The flap of flap and shut-off valve provided by the utility model has lug boss 104, changes previous sealing surface in flat Face or circular conical surface；Such flap is being applied when on shut-off valve, flap with valve rod 900 lift when, flap Gap between valve seat 200 is slowly increased, and the flow of such shut-off valve can slowly change, and cut-off is adjusted from reaching The purpose of valve flow, relative to present shut-off valve, the precision for adjusting flow is greatly improved.

Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new The range of each embodiment technical solution of type.

Claims (10)

1. a kind of flap, which is characterized in that including flap main body；It is provided with to connect with valve rod in the flap main body Mounting groove；

Sealing is circumferentially provided in the flap main body；The flap main body lower end is provided with tip；The tip with Flap main body is the lug boss of arc between the sealing.

2. a kind of shut-off valve, which is characterized in that including valve body, valve deck, pressing plate and handwheel；The valve deck is arranged on the valve body On, the pressing plate is provided on the valve deck, flap described in claim 1 is arranged in the valve body；

Valve rod is provided in the mounting groove of the flap, described valve rod one end is extended to outside the valve body to be connected with the handwheel It connects.

3. shut-off valve according to claim 2, which is characterized in that port one and port two are provided on the valve body；Two A port is respectively used to connection output pipe and intake line.

4. shut-off valve according to claim 2, which is characterized in that sealing is provided between the valve deck and the valve body Circle.

5. shut-off valve according to claim 2, which is characterized in that valve seat is provided in the valve body, on the valve seat It is provided with the cut-off portion contacted with the sealing of flap.

6. shut-off valve according to claim 2, which is characterized in that be arranged with successively on the valve rod seal receptacle, filler and Pressing sleeve；And the pressing sleeve is arranged on the pressing plate lower end.

7. shut-off valve according to claim 6, which is characterized in that be provided with spacer ring between the seal receptacle and filler.

8. shut-off valve according to claim 2, which is characterized in that be provided on the flap for flap and the valve rod The valve clack cover of connection.

9. according to claim 2-8 any one of them shut-off valves, which is characterized in that the valve deck is with the valve body in Chamber is bolted.

10. according to claim 2-8 any one of them shut-off valves, which is characterized in that the pressing plate and the valve deck pass through work Knot is bolted.