CN206816954U

CN206816954U - A kind of flap and the regulating valve with the flap

Info

Publication number: CN206816954U
Application number: CN201720616349.7U
Authority: CN
Inventors: 谢念明
Original assignee: Kiwi Valve (shenzhen) Co Ltd
Current assignee: Kiwi Valve (shenzhen) Co Ltd
Priority date: 2017-05-27
Filing date: 2017-05-27
Publication date: 2017-12-29
Anticipated expiration: 2027-05-27

Abstract

The utility model discloses a kind of flap and with the flap regulating valve, the flap includes flap main body and the valve rod installation portion being connected with flap main body, flap main body is used to be engaged to form on-off structure with valve body, flap main body includes Part I, Part II and the Part III being sequentially connected, Part I is connected with valve rod installation portion, Part III is shaped as taper, and the angle of the bus of Part III and the central shaft of Part III is 55 ° 62 °.The utility model is intended to make to reach trace regulation during valve opening, improves Adjustment precision, flow curve is tended to linearity curve.

Description

A kind of flap and the regulating valve with the flap

Technical field

It the utility model is related to regulating valve technical field, more particularly to a kind of flap and the regulating valve with the flap.

Background technology

At present, regulating valve can be acted in the presence of pressure, temperature or other forms transducing signal by pre-provisioning request, Or be simply turned on and off independent of transducing signal, valve rises opening and closing element by driving or automechanism Drop, sliding, swing or gyration, so as to change the size of its flow area to realize its control function.Traditional regulating valve Including valve body and flap, by controlling the position of flap to change, the size of regulation valve body passage, the regulation of rate-of flow is realized.

But there is following defect in existing regulating valve：

Regulating valve flap seal form uses flat seal or ball face sealing, and contour structures are also different, are being adjusted After valve is closed, its entrance point is different from the pressure of the port of export, produces pressure difference, and the presence of pressure difference can cause medium to pass through regulating valve When, huge impulsive force is produced to regulation valve member and pipeline, causes the flow of regulating valve that strong change occurs, is influenceed whole The performance and used life of equipment, strict pipe-line system is controlled for flow, and existing regulating valve flap can not meet to adjust The requirement that valve trace regulation, high accuracy accurately control.

Utility model content

For overcome the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of flap, existing to overcome The flap for having regulating valve is unable to the problem of trace regulation, high accuracy accurately control in regulation.

The two of the purpose of this utility model are to provide a kind of regulating valve, and the regulating valve can overcome the flap of regulating valve to exist The problem of trace regulation, high-precision accurate control are unable to during the regulating valve time.

One of the purpose of this utility model adopts the following technical scheme that realization：

A kind of flap, including flap main body and the valve rod installation portion that is connected with flap main body, the flap main body be used for Valve body is engaged to form on-off structure, and the flap main body includes Part I, Part II and the Part III being sequentially connected, The Part I is connected with the valve rod installation portion, and Part III is shaped as taper, the bus of the Part III and institute The angle for stating the central shaft of Part III is 55 ° -62 °.

Further, the Part III is in up big and down small inverted pyramidal structures.

Further, the Part II is shaped as taper.

Further, the Part II is in up big and down small inverted pyramidal structures.

Further, the angle of the bus of the Part II and the central shaft of the Part II is 24 ° -36 °.

Further, the angle of the bus of the Part II and the central shaft of the Part II is 30 °.

Further, the Part I, Part II and Part III are coaxially disposed.

Further, flap main body and the valve rod installation portion are integrally formed connection.

Further, the Part II with the Part III is curved seamlessly transits.

The two of the purpose of this utility model adopt the following technical scheme that realization：

A kind of regulating valve, including valve body and flap as described above, the flap are adapted to form keying with the valve body Structure.

Compared with prior art, the beneficial effects of the utility model are：

Regulating valve flap provided by the utility model, the Part I for including being sequentially connected due to the flap main body, the Two parts and Part III, the Part I are connected with the valve rod installation portion, and Part III is shaped as taper, and described The angle of the bus of three parts and the central shaft of the Part III is 55 ° -62 °, and this structure can realize the micro tune of flow Section and the accurate control of high accuracy, effectively adjust the front and rear pressure difference of regulating valve, alleviate the unstability of High Pressure Difference, make regulating valve Operation it is more steady.

Brief description of the drawings

Fig. 1 is the structural representation for the flap that the embodiment of the utility model one provides；

Fig. 2 is the sectional view of flap in Fig. 1.

In figure：1st, flap main body；11st, Part I；12nd, Part II；13rd, Part III；2nd, valve rod installation portion.

Embodiment

Below, with reference to accompanying drawing and embodiment, the utility model is described further, it is necessary to explanation is, On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.

As depicted in figs. 1 and 2, a kind of flap, including flap main body 1 and the valve rod installation portion 2 that is connected with flap main body 1, Flap main body 1 is used to be engaged to form on-off structure with valve body, and flap main body 1 includes the Part I 11, second being sequentially connected Part 12 and Part III 13, Part I 12 are connected with valve rod installation portion 1, and Part III 13 is shaped as taper, the 3rd The angle of 13 bus and the central shaft of Part III 13 is divided to be 55 ° -62 °.

The regulating valve flap that above-described embodiment provides includes the Part I 11, second that is sequentially connected due to flap main body Divide 12 and Part III 13, Part III 13 is shaped as taper, the bus of Part III 13 and the central shaft of Part III 13 Angle be α, α is 55 ° -62 °, thus the flap sealed reliable, service life are grown, and can realize flow trace regulation and height Precision accurately controls, and effectively adjusts the front and rear pressure difference of regulating valve, alleviates the unstability of High Pressure Difference, make the operation of regulating valve more Add steady.

Further, Part III 13 is in up big and down small inverted pyramidal structures.

Further, Part II 12 is shaped as taper.

Further, Part III 13 is in up big and down small inverted pyramidal structures.

Further, the angle of the bus of Part II 12 and the central shaft of Part II 12 is 24 ° -36 °.Preferably, The angle of the bus of Part II 12 and the central shaft of Part II 12 is 30 °, to cause flap sealed reliable, service life It is long, flow trace regulation can be realized, control accuracy is accurate, makes the operation of regulating valve more steady.

With further such that flap sealed reliable, service life length, can realize flow accurate adjustment, make the behaviour of regulating valve Make more steady.

The structure design of above-mentioned Part II 12 and Part III 13 so that flap sealed reliable, service life length, can Flow accurate adjustment is realized, effectively adjusts the front and rear pressure difference of regulating valve, alleviates the unstability of High Pressure Difference, makes the behaviour of regulating valve Make more steady.

Further, Part I 11, Part II 12 and Part III 13 are coaxially disposed.Specifically, Part I 11 Shape in cylinder.Because the guide effect on the face of cylinder and the position-limiting action of the conical surface are able to ensure that flap and the valve rod of regulating valve Higher axiality is kept, sealed reliable, service life length, can more preferably realize the high-precision control of rate-of flow.

Further, flap main body 1 and valve rod installation portion 12 are integrally formed connection.Valve rod installation portion 2 passes through screw thread and pin It is connected with the valve rod of regulating valve, it is reliable and stable.

Further, Part II 12 with Part III 13 is curved seamlessly transits.

A kind of regulating valve, including valve body and flap as above, flap are adapted to form on-off structure with valve body.The regulating valve Sealed reliable, service life length, flow trace regulation and the accurate control of high accuracy can be realized, before effectively adjusting regulating valve Pressure difference afterwards, the unstability of High Pressure Difference is alleviated, make the operation of regulating valve more steady.

Above-mentioned embodiment is only preferred embodiment of the present utility model, it is impossible to is protected with this to limit the utility model Scope, the change of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to In the utility model scope claimed.

Claims

1. a kind of flap, it is characterised in that the valve rod installation portion being connected including flap main body and with flap main body, the flap master Body be used for be engaged to form on-off structure with valve body, the flap main body include be sequentially connected Part I, Part II and Part III, the Part I are connected with the valve rod installation portion, and Part III is shaped as taper, the Part III The angle of bus and the central shaft of the Part III is 55 ° -62 °.

2. flap as claimed in claim 1, it is characterised in that the Part III is in up big and down small inverted pyramidal structures.

3. flap as claimed in claim 1, it is characterised in that the Part II is shaped as taper.

4. flap as claimed in claim 3, it is characterised in that the Part II is in up big and down small inverted pyramidal structures.

5. flap as claimed in claim 4, it is characterised in that the center of the bus of the Part II and the Part II The angle of axle is 24 ° -36 °.

6. flap as claimed in claim 5, it is characterised in that the center of the bus of the Part II and the Part II The angle of axle is 30 °.

7. flap as claimed in claim 1, it is characterised in that the Part I, Part II and Part III are coaxially set Put.

8. flap as claimed in claim 1, it is characterised in that flap main body and the valve rod installation portion are integrally formed connection.

9. flap as claimed in claim 1, it is characterised in that the Part II is curved smoothed with the Part III Cross.

A kind of 10. regulating valve, it is characterised in that the flap including valve body and as described in claim 1-9 is any, the flap with The valve body is adapted to form on-off structure.