CN108930813B - Flow control device - Google Patents
Flow control device Download PDFInfo
- Publication number
- CN108930813B CN108930813B CN201710362831.7A CN201710362831A CN108930813B CN 108930813 B CN108930813 B CN 108930813B CN 201710362831 A CN201710362831 A CN 201710362831A CN 108930813 B CN108930813 B CN 108930813B
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- CN
- China
- Prior art keywords
- control device
- flow control
- heights
- protruding parts
- body part
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
Abstract
The invention provides a flow control device, which comprises a body part, a hub and a boss, wherein the hub protrudes upwards from the upper surface of the body part, and the boss annularly surrounds the hub. The hub is sleeved with an elastic adjusting piece. The body part is provided with a plurality of through holes which vertically penetrate through the body part and a plurality of drainage grooves which are formed by downwards sinking from the upper surface of the body part, and each through hole is at least communicated with one drainage groove. So set up, provide stable flow, reduced the noise when fluid passes through flow control device, optimized service environment.
Description
Technical Field
The present invention relates to a control device applied to a fluid passage, and more particularly, to a flow control device capable of providing a stable flow rate.
Background
With the improvement of awareness of people on saving limited energy, the water saving is more and more important to people, so that the requirement on saving the flow control device is higher and higher. In the initial use stage of the flow control device, the pressure applied to the fluid is unstable, when the pressure applied to the fluid is smaller, the flow rate of the fluid is smaller, and when the pressure is increased, the pressure applied to the fluid is increased, and the flow rate of the fluid is increased. The fluid flow changes along with the change of the pressure, and is extremely unstable, so that the user has poor use experience on the product; meanwhile, when the pressure is increased, the fluid flow is too large, and waste is caused.
In view of the above, there is a need for an improved flow control device to solve the above problems.
Disclosure of Invention
The invention aims to provide a flow rate control device which controls the flow rate of fluid and provides stable flow rate.
In order to achieve the above object, the present invention provides a flow control device, which includes a body portion, a boss protruding upward from an upper surface of the body portion, and a boss annularly surrounding the boss, wherein an elastic adjusting member is sleeved on the boss, the body portion is provided with a plurality of through holes vertically penetrating through the body portion, and a plurality of drainage grooves formed by downward recessing from the upper surface of the body portion, each through hole is communicated with at least one drainage groove, and the body portion is further provided with a plurality of protruding portions protruding upward from the upper surface of the body portion.
As a further improvement of the present invention, the length direction of the drainage groove extends along the radial direction of the body part, and one end of the drainage groove extends to the through hole.
As a further improvement of the invention, the projection of the elastic adjusting piece on the main body part covers the through holes and at least partially covers each drainage groove when the flow control device is viewed from top to bottom.
As a further improvement of the invention, the drainage groove is positioned between two adjacent protrusions.
As a further improvement of the present invention, the heights of two adjacent protrusions are different.
As a further improvement of the present invention, a plurality of the protrusions are disposed around the boss, two of the protrusions opposite to each other have a first height, and two other protrusions orthogonal to the two protrusions opposite to each other have a second height, and the heights of the other protrusions decrease in sequence from the protrusion having the second height toward the protrusion having the first height, and the first height is higher than the second height, and the second height is higher than the respective heights of the other protrusions.
As a further improvement of the present invention, the plurality of protrusions are all cylindrical and each of the protrusions has the same diameter.
As a further improvement of the invention, the through holes are arranged around the boss.
As a further refinement of the present invention, the flow control device further includes a mounting rod extending projecting upwardly from the upper end of the hub.
The invention has the beneficial effects that: the flow control device of the invention divides the fluid into a plurality of small liquid flows when the fluid is extruded by the elastic adjusting piece by arranging the drainage groove communicated with the through hole on the body part, provides stable flow, and reduces the noise generated when the fluid passes through and optimizes the use environment because the drainage groove is communicated with the through hole.
Drawings
FIG. 1 is a schematic view of the construction of a flow control device according to the present invention.
Fig. 2 is a schematic perspective view of a flow control device according to the present invention.
FIG. 3 is a schematic view of a perspective view of a body portion of a flow control device according to the present invention.
FIG. 4 is a schematic view of another perspective of the body portion of the flow control device of the present invention.
Fig. 5 is a schematic view showing the effect of the operation state of the flow control device according to the present invention.
Reference numerals
100-a flow control device; 1-a body portion; 101-upper surface; 11-a boss; 12-a hub; 13-a through hole; 14-a protrusion; 15-a drainage groove; 151-water inlet; 16-a partition; 2-mounting a rod; 3-elastic adjustment member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, the flow control device 100 includes a main body 1, a hub 12 protruding upward from a middle position of the main body 1, and a boss 11 annularly surrounding the hub 12, wherein an elastic adjusting member 3 is sleeved on the hub 12.
The flow control device 100 also includes a mounting stem 2 that extends upwardly from the upper end of the hub 12. The body part 1 and the mounting rod 2 are integrally formed by injection molding, other connecting fittings are not needed, the cost is saved, and the influence on the normal use of the flow control device 100 caused by loose connection in the use process is avoided. The mounting bar 2 is used to connect the flow control device 100 to other devices during installation.
In the present invention, the boss 11 is preferably a cylindrical boss, and the hub 12 is preferably a cylindrical hub. The cylindrical boss 11, the hub 12 and the central axis of the mounting rod 2 are collinear.
The main body 1 has an upper surface 101, a lower surface (not shown) opposite to the upper surface 101, a plurality of through holes 13 vertically penetrating the main body 1 and surrounding the cylindrical bosses 11, a plurality of protrusions 14 protruding upward from the upper surface 101, and a plurality of drainage grooves 15 recessed downward from the upper surface 101.
In the present embodiment, the upper surface 101 is preferably circular. The plurality of protrusions 14 are circumferentially disposed on the upper surface 101. The plurality of protrusions 14 are all cylindrical and the diameter of each protrusion 14 is the same. In the present embodiment, the distance between the center axis of each of the projections 14 and the center axis of the mounting rod 2 is equal. In the present embodiment, two of the protrusions 14 facing each other have a first height, and two other protrusions 14 orthogonal to the two opposing protrusions 14 have a second height, and the other protrusions 14 have heights that decrease in order from the protrusion 14 having the second height toward the protrusion 14 having the first height, the first height being higher than the second height, and the second height being higher than the respective heights of the other protrusions 14; in other embodiments, the height of each of the protruding portions 14 in the up-down direction may be different.
The drainage grooves 15 are distributed between the protruding parts 14 along the radial direction of the body part 1, and one or more drainage grooves 15 are arranged between two adjacent protruding parts 14. The length direction of the drainage groove 15 extends along the radial direction of the body part 1, and one end of the drainage groove 15 extends to the through hole 13. In this embodiment, the drainage grooves 15 do not vertically penetrate the main body 1.
The drainage groove 15 is provided with an elongated water inlet 151 depressed downward from the upper surface 101. The maximum linear distance of the water inlet 151 from the central axis of the body 1 is smaller than the radius of the upper surface 101. The maximum linear distance of the water inlet 151 from the central axis of the body 1 is greater than the maximum linear distance of the protrusion 14 from the central axis of the body 1. The flow guide grooves 15 divide the fluid flowing through the flow control device 100 into a plurality of sub-flows, and then the sub-flows are collected into the through holes 13 and further flow out of the flow control device 100. So configured, the flow rate of the fluid flowing out of the flow control device 100 is uniform, and the operation noise when the fluid passes through the through hole 13 is reduced to some extent.
The body portion 1 is provided with a number of barriers 16, preferably key-shaped barriers, separating the number of through holes 13. The height of the partition 16 in the axial direction of the mounting rod 2 is not higher than the height of the cylindrical boss 11 in the axial direction of the mounting rod 2. The barrier 16 may be used to prevent the flow control device 100 from rotating during operation, facilitating proper operation of the flow control device 100.
In the embodiment of the present invention, the elastic adjusting member 3 is a rubber pad 3. The rubber pad 3 is fitted on the hub 12. In the rest condition, the rubber pad 3 is parallel to the upper surface 101 of the body 1, and the rubber pad 3 is at a distance from the top of the protrusion 14. When the flow control device 100 is viewed from top to bottom, the projection of the rubber pad 3 on the body portion 1 covers the through holes 13 and at least partially covers each of the drainage grooves 15. When the external pressure of the fluid is great, the cylindrical boss 11 located below the hub 12 plays an upward supporting and fixing role for the rubber pad 3 sleeved on the hub 12, and the middle part of the rubber pad 3 is prevented from being excessively deformed or sunken into the through hole 13 due to the excessive pressure, so that the normal operation of the flow control device 100 is influenced.
Referring to fig. 5 in combination with fig. 1, the operation of the flow control device 100 is divided into two stages, namely, ① stage in which the flow control device 100 does not perform a flow limiting function, and ② stage in which the flow control device 100 performs a flow limiting function, the first stage is that when the external pressure is small, the fluid flows through the body 1 from above the rubber pad 3, the fluid directly flows through the rubber pad 3 into the through hole 13 because the rubber pad 3 has a certain hardness and the small pressure does not cause deformation of the rubber pad 3, and then flows out of the flow control device 100, at this time, the flow control device 100 does not perform a flow limiting function, and the second stage is that as the external pressure increases, the pressure above the rubber pad 3 increases, the pressure below the rubber pad 3 is smaller than the pressure above the rubber pad 3, and the rubber pad 3 begins to deform downward, so that the gap between the rubber pad 3 and the upper surface 101 of the body 1 gradually decreases, thereby reducing the flow of the fluid.
Since the protrusions 14 having the same radius and different heights are uniformly distributed on the upper surface 101 of the body 1, when the rubber pad 3 is initially deformed, the rubber pad 3 first contacts with the protrusion 14 higher than the protrusion 14, the gap between the rubber pad 3 and the upper surface 101 of the body 1 is gradually reduced, and a part of fluid flows through the rubber pad 3 into the drainage groove 15 and then into the through hole 13; as the external pressure increases, the rubber pad 3 deforms to a certain extent to contact with the protrusion 14 with the smallest height, and the uniformly distributed protrusions 14 prevent the rubber pad 3 from further deforming, so that the purpose that the rubber pad 3 does not deform any further when the external pressure increases is achieved, and thus the fluid flowing out of the body 1 is ensured to be at a constant flow rate, and the purpose of stabilizing the flow rate of the fluid is achieved.
In summary, the flow control device 100 of the present invention provides a stable flow rate by providing the drainage groove 15 in the body 1 to communicate with the through hole 13, so that the fluid is divided into a plurality of small flows when being squeezed by the elastic adjustment member 3, and because the drainage groove 15 communicates with the through hole 13, noise generated when the fluid passes through is reduced, and the use environment is optimized.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a flow control device, includes the noumenon portion, certainly the upwards outstanding hub that extends of noumenon portion upper surface and annular around in the boss of hub, the cover is equipped with elasticity regulating part on the hub, its characterized in that: the body part is provided with a plurality of through holes which vertically penetrate through the body part and a plurality of drainage grooves which are formed by downwards sinking from the upper surface of the body part, each through hole is at least communicated with one drainage groove, and the body part is also provided with a plurality of protruding parts which protrude upwards from the upper surface of the body part.
2. The flow control device of claim 1, wherein: the length direction of the drainage groove extends along the radial direction of the body part, and one end of the drainage groove extends to the through hole.
3. The flow control device of claim 1, wherein: the flow control device is overlooked from top to bottom, and the elastic adjusting piece at least partially covers the through holes and at least partially covers each drainage groove.
4. The flow control device of claim 2, wherein: the drainage groove is positioned between two adjacent protruding parts.
5. A flow control device according to claim 4, wherein: the heights of two adjacent protruding parts are different.
6. A flow control device according to claim 4, wherein: the plurality of protruding parts are arranged around the boss in a surrounding mode, two opposite protruding parts are provided with first heights, the other two protruding parts orthogonal to the two opposite protruding parts are provided with second heights, the heights of the other protruding parts are sequentially reduced from the protruding parts with the second heights to the protruding parts with the first heights, the first heights are higher than the second heights, and the second heights are higher than the heights of the other protruding parts.
7. A flow control device according to claim 4, wherein: the plurality of protrusions are all cylindrical and the diameter of each protrusion is the same.
8. The flow control device of claim 1, wherein: the through holes are arranged around the boss in a surrounding mode.
9. The flow control device of claim 1, wherein: the flow control device also includes a mounting rod extending upwardly projecting from the upper end of the hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362831.7A CN108930813B (en) | 2017-05-22 | 2017-05-22 | Flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362831.7A CN108930813B (en) | 2017-05-22 | 2017-05-22 | Flow control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108930813A CN108930813A (en) | 2018-12-04 |
| CN108930813B true CN108930813B (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362831.7A Active CN108930813B (en) | 2017-05-22 | 2017-05-22 | Flow control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108930813B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE394907B (en) * | 1972-08-24 | 1977-07-18 | Hombereger Och K Meyer R F | REMOTELY MOVABLE VALVE WITH AN ELASTICALLY DEFORMABLE, INSIDE PARTS ELASTICLY DEFORMABLE VALVE BODY |
| US4198029A (en) * | 1976-10-08 | 1980-04-15 | Textron, Inc. | Throttling control valve |
| FR2684162A1 (en) * | 1991-11-27 | 1993-05-28 | Ysebaert | Valve with elastic membrane |
| CN104936675A (en) * | 2012-10-16 | 2015-09-23 | 纳米多孔方案有限公司 | Pressure swing adsorption apparatus |
| EP2318599B1 (en) * | 2008-08-08 | 2016-04-20 | Studor S.A. | Air admittance valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3389415B2 (en) * | 1996-05-28 | 2003-03-24 | エヌオーケー株式会社 | Diaphragm valve |
| JP6059542B2 (en) * | 2013-01-30 | 2017-01-11 | 株式会社エー・シー・イー | Exhaust pressure / flow rate controller |
-
2017
- 2017-05-22 CN CN201710362831.7A patent/CN108930813B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE394907B (en) * | 1972-08-24 | 1977-07-18 | Hombereger Och K Meyer R F | REMOTELY MOVABLE VALVE WITH AN ELASTICALLY DEFORMABLE, INSIDE PARTS ELASTICLY DEFORMABLE VALVE BODY |
| US4198029A (en) * | 1976-10-08 | 1980-04-15 | Textron, Inc. | Throttling control valve |
| FR2684162A1 (en) * | 1991-11-27 | 1993-05-28 | Ysebaert | Valve with elastic membrane |
| EP2318599B1 (en) * | 2008-08-08 | 2016-04-20 | Studor S.A. | Air admittance valve |
| CN104936675A (en) * | 2012-10-16 | 2015-09-23 | 纳米多孔方案有限公司 | Pressure swing adsorption apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108930813A (en) | 2018-12-04 |
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