CN206617599U - Flow control valve - Google Patents
Flow control valve Download PDFInfo
- Publication number
- CN206617599U CN206617599U CN201720150977.0U CN201720150977U CN206617599U CN 206617599 U CN206617599 U CN 206617599U CN 201720150977 U CN201720150977 U CN 201720150977U CN 206617599 U CN206617599 U CN 206617599U
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- valve seat
- cylinder
- seat
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Abstract
A kind of flow control valve, including valve body（1）, flap（3）, valve seat is provided with the cavity of valve body（2）, cavity is divided into admission chamber by valve seat（13）With go out sap cavity（14）, flap covers valve seat when flap is moved downward, and flap is lifted off a seat when flap is moved upwards, it is characterized in that, it is connected with cylinder in the bottom surface of flap（4）, cylinder is ordinatedly inserted in the through hole of valve seat, and several vertical bar holes are provided with the barrel of cylinder（5）.It is characterized in, valve is closed when flap covers valve seat, when flap is lifted off a seat, and the liquid in admission chamber enters sap cavity by bar hole water conservancy diversion, with the gap increase between flap and valve seat, proportional relation increases the water conservancy diversion cross section of bar hole so that flow can be able to accurately adjust.
Description
Technical field
Utility model is related to a kind of invention, especially a kind of valve for being convenient for Flow-rate adjustment.
Background technology
Existing valve is separating or contacting and realize being turned on and off for valve by flap and valve seat, passes through regulation
Gap between flap and valve seat can also adjust the flow of fluid, but the gap change between flap and valve seat is compared
It is small, it is impossible to accurately to adjust flow.It is therefore desirable to design a kind of valve for being easy to adjust flow, the need for meeting user.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of flow control valve, the valve except with open and
Outside the function of closing, moreover it is possible to which flow is accurately adjusted.
The technical solution of the utility model is, a kind of flow control valve, including valve body 1, flap 3, in the cavity of valve body
Valve seat 2 is provided with, cavity is divided into admission chamber 13 and goes out sap cavity 14 by valve seat, and flap covers valve seat, flap when flap is moved downward
Flap is lifted off a seat during motion upwards, it is characterized in that, cylinder 4 is connected with the bottom surface of flap, cylinder is ordinatedly inserted in valve seat
In through hole, several vertical bar holes 5 are provided with the barrel of cylinder.
The characteristics of the utility model is that valve is closed when flap covers valve seat, when flap is lifted off a seat, the liquid in admission chamber
Body enters sap cavity by bar hole water conservancy diversion, the water conservancy diversion cross section of bar hole with the gap between flap and valve seat increase and in just
Than relation increase so that flow can be able to accurately adjust.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 for Fig. 1 A-A to sectional view, for representing the section of cylinder.
Accompanying drawing mark is represented respectively：1- valve bodies, 2- valve seats, 3- flaps, 4- cylinders, 5- bar holes, 6- straight-bars, 7- sealings
Circle, 8- screw rods, 9- cylinders, 10- flanges, 11- sealing gaskets, 12- cover plates, 13- admission chambers, 14- go out sap cavity.
Embodiment
In conjunction with brief description of the drawings embodiment of the present utility model.
A kind of flow control valve, including valve body 1, flap 3, are provided with valve seat 2 in the cavity of valve body, and valve seat divides cavity
Admission chamber 13 and to go out sap cavity 14, flap covers valve seat when flap is moved downward, and flap is lifted off a seat when flap is moved upwards, its
It is characterized in be connected with cylinder 4 in the bottom surface of flap, cylinder is ordinatedly inserted in the through hole of valve seat, is provided with the barrel of cylinder
Several vertical bar holes 5.
A flange 10 is extended outward in the cylinder portion on valve body top, flange is connected with a cover plate 12, cover plate and flange it
Between be provided with sealing gasket 11, vertical upwards on the cover board to have a cylinder 9, the first half of cylinder is provided with one section of internal thread, cylinder lower half
Through hole be provided with sealing ring 7.Flap is driven by a drive rod, and the first half of drive rod is screw rod 8, and screw rod is spun on cylinder 9
In internal thread, the lower half of drive rod is straight-bar 6, and straight-bar 6 is closely interposed in sealing ring 7, and straight-bar 6 is connected with flap.
Rotation of drive rod can make flap move up and down, and realize the open and close of valve.When flap is lifted off a seat, feed liquor
Liquid in chamber enters sap cavity by bar hole water conservancy diversion, and the water conservancy diversion cross section of bar hole is with the gap increasing between flap and valve seat
Increase greatly, vice versa.
The maximum water conservancy diversion cross section of bar hole forms area less than the internal diameter of cylinder 4；The water conservancy diversion cross section variation relation of bar hole
Formula is：
S = a×nb；
S represents that the water conservancy diversion cross section of bar hole, a represent that the gap size between flap and valve seat, b represent bar hole in above formula
Width dimensions, n represents the number of bar hole.
From above formula, because bar shaped hole width and bar hole number are changeless, the water conservancy diversion cross sections of bar hole
It is proportional with gap a.In the case where the maximum water conservancy diversion cross section of bar hole is determined, by the width and bar that reduce bar hole
The number in shape hole, can increase the interstice coverage between flap and valve seat, the interstice coverage between flap and valve seat is bigger, bar shaped
The water conservancy diversion cross section in hole is more easily controlled, and the regulation of valve flow is more accurate.
Flap can be integral bar hole on structure, cylinder with cylinder and be processed to be formed with slotting cutter, the two ends quilt of bar hole
One semi arch is closed.
Flap and cylinder are alternatively Split type structure, flap with cylinder by being welded to connect or being threadedly coupled, using split knot
Bar hole can be processed with metal saw on structure, cylinder, and the upper end of such bar hole is by the bottom surface of flap at opening shape, opening
Closed, rather than closed by a semi arch；Its advantage is, during gap very little between flap and valve seat, bar hole
Water conservancy diversion cross section is still proportional with gap a, that is to say, that remain to accurately adjust in flow very little.
Claims (2)
1. a kind of flow control valve, including valve body（1）, flap（3）, valve seat is provided with the cavity of valve body（2）, valve seat is by chamber
Body is divided into admission chamber（13）With go out sap cavity（14）, flap covers valve seat when flap is moved downward, when flap is moved upwards flap from
Valve opening seat, it is characterized in that, it is connected with cylinder in the bottom surface of flap（4）, cylinder is ordinatedly inserted in the through hole of valve seat, the cylinder of cylinder
Several vertical bar holes are provided with wall（5）.
2. flow control valve according to claim 1, it is characterized in that, the upper end of bar hole is quilt at opening shape, opening
Closed the bottom surface of flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150977.0U CN206617599U (en) | 2017-02-20 | 2017-02-20 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150977.0U CN206617599U (en) | 2017-02-20 | 2017-02-20 | Flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617599U true CN206617599U (en) | 2017-11-07 |
Family
ID=60231192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720150977.0U Expired - Fee Related CN206617599U (en) | 2017-02-20 | 2017-02-20 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617599U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2702022C1 (en) * | 2018-12-28 | 2019-10-03 | Закрытое акционерное общество "Научно-производственное объединение РЕГУЛЯТОР" ЗАО "НПО РЕГУЛЯТОР" | Axisymmetric control valve |
| CN113561065A (en) * | 2021-08-10 | 2021-10-29 | 布鲁斯(浙江)精密科技有限公司 | Automatic sand supply mechanism of water cutting machine |
-
2017
- 2017-02-20 CN CN201720150977.0U patent/CN206617599U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2702022C1 (en) * | 2018-12-28 | 2019-10-03 | Закрытое акционерное общество "Научно-производственное объединение РЕГУЛЯТОР" ЗАО "НПО РЕГУЛЯТОР" | Axisymmetric control valve |
| CN113561065A (en) * | 2021-08-10 | 2021-10-29 | 布鲁斯(浙江)精密科技有限公司 | Automatic sand supply mechanism of water cutting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20180220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |