CN112879583A

CN112879583A - Adjustable flow stabilizing valve

Info

Publication number: CN112879583A
Application number: CN202110033049.7A
Authority: CN
Inventors: 原世超; 王世平; 沈文权; 茅忠群; 诸永定
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-06-01
Anticipated expiration: 2041-01-11
Also published as: CN112879583B

Abstract

The invention discloses an adjustable flow stabilizing valve which comprises an outer ring, an inner ring, a supporting plate, an adjusting sleeve and an adjusting mechanism, wherein at least one communicating hole is formed on the peripheral surface of the inner ring, the peripheral surface of the supporting plate is fixed with the inner peripheral surface of the outer ring, the inner peripheral surface of the adjusting sleeve is matched with the peripheral surface of the inner ring, the adjusting sleeve can slide on the inner ring, the supporting plate limits the limit position of the adjusting sleeve which slides along the axial direction, the inner peripheral surface of the adjusting sleeve covers the part, close to a water inlet, of the communicating hole, and the adjusting mechanism can adjust the relative position of the supporting plate and the outer. The adjustable flow stabilizing valve can selectively have a plurality of flow stabilizing curves, namely a plurality of stable flows, by adjusting the relative position between the communicating hole and the adjusting sleeve and the like. The flow stabilizing valve can meet the requirements of 13L water heaters and also can meet the requirements of 16L or 20L water heaters with larger flow, and the like, and has good universality; the water heater can be debugged according to the actual water pressure condition of a user home, so that the water heater works under the most suitable flow, and the adaptability is stronger.

Description

Adjustable flow stabilizing valve

Technical Field

The invention relates to an adjustable flow stabilizing valve.

Background

In gas heater's waterway system, set up discharge stabilising arrangement and can effectively improve the undulant problem of the play hot water temperature that the discharge fluctuation arouses, improve the experience sense that the user used gas heater. The 5.2.2.4.6 requirement in GB6932-2015 domestic gas instantaneous water heater requires that the water circuit system should be provided with a flow stabilizing or flow regulating device.

With the increasing of high-rise buildings, the water pressure condition of a user home is more and more complicated. For example, some small areas have high water pressure, some small areas have low water pressure, and different water pressures require different specifications of flow stabilizing valves, so that a better use effect can be achieved. Meanwhile, water heaters with different liter numbers also need to be provided with flow stabilizing valves with different specifications. The existing flow stabilizing valve has poor universality, as shown in fig. 1, the flow stabilizing valve without a regulating function has only one flow stabilizing curve of water flow and water pressure, that is, the stable flow is a fixed value. The single-change flow stabilizing valve is difficult to adapt to the complex water using environment and different flow requirements of the existing gas water heater. How to increase the commonality of stationary flow valve to adapt to different gas heater is the important factor of guaranteeing the user experience sense of gas heater.

Disclosure of Invention

The invention aims to overcome the defect of poor universality of a flow stabilizing valve in the prior art and provides an adjustable flow stabilizing valve.

The invention solves the technical problems through the following technical scheme:

the invention provides an adjustable flow stabilizing valve, which comprises a valve body, wherein a flow channel is formed in the valve body, a water inlet and a water outlet are also arranged on the valve body, the water inlet and the water outlet are respectively communicated to two ends of the flow channel, and the adjustable flow stabilizing valve also comprises:

the outer peripheral surface of the outer ring is matched with the inner peripheral surface of the flow channel;

the inner ring is coaxially arranged in the outer ring, the inner ring is fixed with the outer ring, and at least one communicating hole is formed on the circumferential surface of the inner ring;

the outer circumferential surface of the supporting disc is fixed with the inner circumferential surface of the outer ring; a water outlet space is formed among the end surface of the supporting disc facing the water outlet, the inner circumferential surface of the outer ring and the outer circumferential surface of the inner ring, and the communication hole is communicated to the water outlet space;

the outer peripheral surface of the adjusting sleeve is matched with the inner peripheral surface of the supporting disc, and the inner peripheral surface of the adjusting sleeve is matched with the outer peripheral surface of the inner ring; the adjusting sleeve can slide on the inner ring, and the supporting disc defines the extreme position of the adjusting sleeve in the axial direction; the inner circumferential surface of the adjusting sleeve covers the part of the communication hole close to the water inlet;

the adjusting mechanism is arranged on the valve body; the adjusting mechanism can adjust the relative position of the supporting disc and the outer ring along the axial direction.

In the technical scheme, the position of the supporting disc along the axial direction is adjusted through the adjusting mechanism, so that the area of the communicating hole covered by the adjusting sleeve is different from the change curve of the water pressure, namely the communicating area of the communicating hole is changed from the change curve of the water pressure, different steady flow curves are obtained, and different stable flow rates are formed.

Preferably, the inner peripheral surface of the outer ring forms a first threaded section, the outer peripheral surface of the support disc forms a second threaded section, the second threaded section is in threaded connection with the first threaded section, the axial length of the first threaded section is greater than that of the second threaded section, and the adjusting mechanism can drive the support disc to rotate around the axis.

In the technical scheme, the adjusting mechanism can drive the supporting disc to rotate around the axis, and the position of the second thread section in the first thread section is changed, so that the relative position of the supporting disc and the outer ring in the axial direction is changed, and the purpose of adjusting the flow channel is achieved.

Preferably, the adjustable flow stabilizing valve further comprises a lower limit flange, the lower limit flange is positioned on the outer peripheral surface of the adjusting sleeve, and the outer diameter of the lower limit flange is larger than the inner diameter of the supporting disk; when the lower limiting flange is abutted against the end face, facing the water outlet, of the supporting disc, the area of the communicating hole covered by the adjusting sleeve is the smallest.

In the technical scheme, when the relative position of the support disc and the outer ring along the axial direction is changed, the minimum area of the communication hole covered by the adjusting sleeve can be changed.

Preferably, the adjustable flow stabilizing valve further comprises an upper limiting flange, and the upper limiting flange is positioned at one end, facing the water outlet, of the inner ring; when the upper limiting flange is abutted against the end face of the adjusting sleeve facing the water outlet, the area of the communicating hole covered by the adjusting sleeve is the largest.

In the technical scheme, the condition that the end surface of the adjusting sleeve is abutted against the upper limiting flange only in the water pressure limit state can occur; under normal use state, the terminal surface of adjusting collar can not contact upper limit flange, and upper limit flange mainly plays the effect that prevents the adjusting collar and break away from.

Preferably, the adjustable flow stabilizing valve further comprises:

the pressure bearing disc is fixedly sleeved on the adjusting sleeve and is closer to the water inlet relative to the supporting disc;

and the adjusting spring is sleeved on the adjusting sleeve, and two ends of the adjusting spring are respectively abutted against the supporting disc and the bearing disc.

In the technical scheme, the water flow of the water inlet can generate impact force on the pressure bearing disc, the pressure bearing disc drives the adjusting sleeve to slide on the inner ring, and the communication area of the communication hole is adjusted; the adjusting spring exerts an acting force opposite to the water flow on the bearing disc, when the acting forces exerted on the bearing disc by the water flow and the adjusting spring are basically the same, the communication area of the communication hole is kept stable, and the flow stabilizing valve reaches a stable flow state.

Preferably, the inner circumferential surface of the outer ring and the outer circumferential surface of the pressure-bearing disc are respectively provided with a first guide rail and a first groove, the extending direction of the first guide rail is parallel to the axial direction of the outer ring, the first groove is matched with the first guide rail, and the pressure-bearing disc can slide along the extending direction of the first guide rail.

In the technical scheme, the first guide rail and the first groove are arranged between the outer ring and the bearing disc, so that the bearing disc can only slide relative to the outer ring along the axial direction and cannot rotate relative to the outer ring.

Preferably, an adjusting space is formed between the outer peripheral surface of the adjusting sleeve, the inner peripheral surface of the outer ring, the supporting disk and the pressure-bearing disk, a penetrating adjusting hole is formed in the peripheral surface of the adjusting sleeve, and the adjusting hole is communicated with the adjusting space and the communicating hole.

In the technical scheme, the adjusting space and the communicating hole are communicated through the adjusting hole, so that the adjusting space is prevented from forming a closed space, and when the pressure bearing disc and the adjusting sleeve move along the axial direction, water energy in the adjusting space can circulate with water phase in the inner ring.

Preferably, the inner circumferential surface of the supporting disk and the outer circumferential surface of the adjusting sleeve are respectively provided with a second guide rail and a second groove, the extending direction of the second guide rail is parallel to the axial direction of the adjusting sleeve, the second groove is matched with the second guide rail, and the adjusting sleeve can slide along the extending direction of the second guide rail.

In this technical scheme, through set up second guide rail, second recess between adjusting sleeve, supporting disk, make adjusting sleeve can only slide along the axial for the supporting disk, and can not rotate for the outer ring.

Preferably, the adjusting sleeve can drive the supporting disc to rotate, and the valve body is provided with a mounting hole penetrating through the valve body; the adjustment mechanism includes:

the rotating nut is arranged at one end, facing the water inlet, of the adjusting sleeve, the inner circumferential surface of the rotating nut is provided with a matching surface, and the cross section of the matching surface is non-circular;

the rotating rod penetrates through the mounting hole and is provided with a matching end capable of being inserted into the rotating nut, and the shape of the outer peripheral surface of the matching end is matched with the shape of the matching surface of the rotating nut;

a locking member mounted on an inner circumferential surface of the rotating nut; the cooperation end of dwang is inserted when rotating in the nut, the cooperation end acts on the locking piece, the locking piece will rotate the nut with the adjusting collar locks each other on pivoting direction of rotation.

In the technical scheme, when the adjusting sleeve needs to be rotated to adjust the relative position of the supporting disc and the outer ring along the axial direction, the matching end of the rotating rod is inserted into the rotating nut firstly, the matching end acts on the locking piece, and the rotating nut and the adjusting sleeve are locked with each other in the axial rotating direction by the locking piece; then the rotating rod is rotated to drive the rotating nut, the adjusting sleeve and the supporting disk to rotate together, so that the position of the supporting disk on the outer ring is changed.

Preferably, the inner circumferential surface of the adjusting sleeve is provided with a locking groove, and the extending direction of the locking groove is parallel to the axis of the adjusting sleeve; the rotating nut is provided with a locking hole which penetrates through the rotating nut along the radial direction, the locking hole is provided with a first limiting surface and a second limiting surface which protrude inwards, and the second limiting surface is closer to the adjusting sleeve than the first limiting surface;

the locking member includes:

the locking rod is inserted into the locking hole, the length of the locking rod is greater than that of the locking hole, two ends of the locking rod are respectively an abutting end and an inserting end, and the inserting end of the locking rod faces the adjusting sleeve and can be inserted into the locking groove;

the locking flange is fixed on the locking rod and is positioned between the first limiting surface and the second limiting surface;

the locking spring is sleeved on the locking rod, and two ends of the locking spring respectively abut against the locking flange and the second limiting surface; when external force is not applied, the locking spring enables the locking flange to abut against the first limiting surface, the abutting end of the locking rod extends into the inner space of the rotating nut, and the insertion end of the locking rod retracts into the locking hole.

In the technical scheme, when the locking device is used in a daily use state, the insertion end of the locking rod retracts into the locking hole, and the locking rod cannot influence the axial movement of the adjusting sleeve. When the adjusting sleeve is adjusted, after the matching end of the rotating rod is inserted into the rotating nut, the matching end of the rotating rod extrudes the abutting end of the locking rod, so that the inserting end of the locking rod extends out of the locking hole and then is inserted into the locking groove, and the rotating nut and the adjusting sleeve are mutually locked in the axial rotating direction; at the moment, when the rotating rod drives the rotating nut to rotate, the adjusting sleeve can be driven to rotate together.

Preferably, the adjusting mechanism further comprises:

the rotating seat is installed outside the valve body, and the peripheral surface of the rotating seat and the installation hole are coaxially arranged;

the cover rotates, the dwang with it is fixed mutually to rotate the cover, it is in to rotate the cover on the rotation seat, the dwang passes it inserts to rotate the seat in the mounting hole, it can to rotate the cover rotate and follow axial displacement on the rotation seat.

In the technical scheme, when the rotating rod is required to be inserted into the rotating nut, external force is applied to the rotating sleeve, so that the rotating sleeve and the rotating rod move along the axial direction until the matching end of the rotating rod is inserted into the rotating nut; then the rotating sleeve is rotated, so that the rotating rod drives the rotating nut to rotate.

Preferably, the rotating seat is provided with a first convex ring protruding outwards in the radial direction, the rotating sleeve is provided with a second convex ring protruding inwards in the radial direction, and the second convex ring is located between the first convex ring and the valve body.

In this technical scheme, through setting up first protruding circle, second protruding circle, will rotate the cover restriction and rotate on the seat.

Preferably, the adjusting mechanism further comprises a sealing ring, the sealing ring is located between the rotating seat and the rotating rod, and the sealing ring is in contact with the inner circumferential surface of the rotating seat, the outer circumferential surface of the rotating rod and the outer surface of the valve body.

In this technical scheme, through setting up the sealing washer, make and keep sealed between dwang and the valve body, avoid water to flow out from the mounting hole.

Preferably, the adjusting mechanism further comprises a return spring, the return spring is sleeved on the rotating rod, and two ends of the return spring are respectively abutted to the rotating sleeve and the sealing ring.

In this technical scheme, reset spring makes the dwang keep away from swivel nut when not receiving external force on the one hand, and on the other hand reset spring compresses tightly the sealing washer all the time, makes the sealing washer keep encapsulated situation.

Preferably, the adjustable flow stabilizing valve further comprises a bearing disc, the bearing disc is sleeved on the adjusting sleeve and is in threaded connection with the adjusting sleeve, the outer peripheral surface of the bearing disc is matched with the inner peripheral surface of the outer ring, and the bearing disc is limited by the outer ring to rotate.

In the technical scheme, in a normal use state, the pressure bearing disc can slide relative to the outer ring according to the change of water pressure; when the pressure bearing disc needs to be adjusted, the pressure bearing disc can be kept to be not rotated, the adjusting sleeve rotates in the pressure bearing disc, and the relative position between the adjusting sleeve and the pressure bearing disc is changed.

Preferably, the adjusting mechanism comprises a rotating nut which is inserted into the inner ring and can adjust the position along the axial direction of the inner ring; the inner ring is provided with a first clamping surface extending inwards, the end surface of the rotating nut facing the first clamping surface is a second clamping surface, and a clamping space is formed between the first clamping surface and the second clamping surface; the adjustable flow stabilizing valve further comprises an elastic ring, and the elastic ring is located in the clamping space.

In this technical scheme, when the swivel nut rotates, the distance between first clamping face and the second clamping face can change to make the elastic ring take place to warp, the internal diameter that the elastic ring formed can change according to the deformation of elastic ring, thereby supplementary size of adjusting the runner.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows:

the adjustable flow stabilizing valve can selectively have a plurality of flow stabilizing curves, namely a plurality of stable flows, by adjusting the relative position between the communicating hole and the adjusting sleeve and the like, and can also play a role in adjusting the working water pressure of the flow stabilizing valve while adjusting the flow. When the adjustable flow stabilizing valve is used for a gas water heater, the requirement of a 13L water heater and the requirement of a 16L or 20L water heater with larger flow can be met, the research and development cost can be reduced, the research and development period can be shortened, and the universality is good; the water heater can be debugged according to the actual water pressure condition of a user home, so that the water heater works under the most suitable flow, and the adaptability is stronger.

Drawings

FIG. 1 is a schematic diagram of a flow stabilization curve for a prior art flow stabilization valve.

Fig. 2 is a schematic structural diagram of an adjustable flow stabilizing valve of the present invention.

Fig. 3 is an internal structure view of the adjustable flow stabilizing valve shown in fig. 2.

Fig. 4 is an enlarged view of the internal structure of the adjustable flow stabilizing valve shown in fig. 3.

Fig. 5 is a sectional view of the adjustable flow stabilizer valve shown in fig. 2.

Fig. 6 is a partially enlarged view of the adjustable flow stabilizer valve shown in fig. 5.

Fig. 7 is a partially enlarged view of the area a of the adjustable flow stabilizer valve shown in fig. 6.

Fig. 8 is a partially enlarged view of a region B of the adjustable flow stabilizer valve shown in fig. 6.

Fig. 9 is a partially enlarged view of the adjustable flow stabilizer valve shown in fig. 5.

Fig. 10 is an exploded view of the adjustable ballast valve shown in fig. 2.

Fig. 11 is a schematic structural view of a valve body of the adjustable flow stabilizing valve shown in fig. 3.

Fig. 12 is a schematic structural diagram of an outer ring and an inner ring of the adjustable flow stabilizing valve shown in fig. 3.

Fig. 13 is a schematic structural diagram of an adjusting sleeve of the adjustable flow stabilizing valve shown in fig. 3.

Fig. 14 is a schematic structural view of a support disc of the adjustable flow stabilizing valve shown in fig. 3.

Fig. 15 is a schematic structural view of a pressure bearing disc of the adjustable flow stabilizing valve shown in fig. 3.

Fig. 16 is a schematic structural view of a rotating nut of the adjustable flow stabilizing valve shown in fig. 3.

FIG. 17 is a schematic view of a flow stabilization curve of the adjustable flow stabilization valve of the present invention.

Description of the reference numerals

Valve body 1

Water inlet 11

Water outlet 12

Mounting hole 13

Mounting flange 14

Flow passage 2

Outer ring 3

First thread segments 31

First guide rail 32

Inner ring 4

Communication hole 41

First clamping surface 42

Support plate 5

Second thread segments 51

Second groove 52

Adjusting sleeve 6

Fourth thread segments 61

Second guide rail 62

Adjusting hole 63

Locking groove 64

Adjusting mechanism 7

Rotating nut 71

Mating surface 711

Locking hole 712

First limiting surface 713

Second limit surface 714

Second clamping surface 715

Rotating rod 72

Mating end 721

Locking piece 73

Locking lever 731

Locking flange 732

Locking spring 733

Abutting end 734

Insertion end 735

Rotating seat 74

First convex ring 741

Rotating sleeve 75

Second convex ring 751

Sealing ring 76

Return spring 77

Water outlet space 8

Lower limiting flange 9

Upper limit flange 10

Pressure bearing disc 20

Third thread segment 201

First groove 202

Adjusting spring 30

Accommodation space 40

Clamping space 50

Elastic ring 60

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

As shown in fig. 2 to 16, the invention provides an adjustable flow stabilizing valve, which comprises a valve body 1, wherein a flow channel 2 is formed in the valve body 1, the valve body 1 is further provided with a water inlet 11 and a water outlet 12, and the water inlet 11 and the water outlet 12 are respectively communicated to two ends of the flow channel 2. The adjustable flow stabilizing valve also comprises an outer ring 3, an inner ring 4, a supporting disk 5, an adjusting sleeve 6 and an adjusting mechanism 7, wherein the outer peripheral surface of the outer ring 3 is matched with the inner peripheral surface of the flow channel 2; the inner ring 4 is coaxially arranged in the outer ring 3, the inner ring 4 is fixed with the outer ring 3, and a plurality of communicating holes 41 are formed on the circumferential surface of the inner ring 4; the outer peripheral surface of the supporting disc 5 is fixed with the inner peripheral surface of the outer ring 3; a water outlet space 8 is formed among the end surface of the support disc 5 facing the water outlet 12, the inner peripheral surface of the outer ring 3 and the outer peripheral surface of the inner ring 4, and the communication hole 41 is communicated to the water outlet space 8; the outer peripheral surface of the adjusting sleeve 6 is matched with the inner peripheral surface of the supporting disk 5, the inner peripheral surface of the adjusting sleeve 6 is matched with the outer peripheral surface of the inner ring 4, the adjusting sleeve 6 can slide on the inner ring 4, and the supporting disk 5 limits the limit position of the adjusting sleeve 6 in the axial direction; the inner peripheral surface of the regulation sleeve 6 covers the portion of the communication hole 41 near the water inlet 11; the adjusting mechanism 7 is arranged on the valve body 1; the adjusting mechanism 7 can adjust the relative position of the supporting disc 5 and the outer ring 3 along the axial direction.

When the flow stabilizing valve is installed on a pipeline, water flow flowing into the flow channel 2 from the water inlet 11 can directly or indirectly generate acting force on the adjusting sleeve 6, so that the adjusting sleeve 6 can slide on the inner ring 4 according to the change of water pressure, the area of the adjusting sleeve 6 covering the communication hole 41 is changed, namely the communication area between the communication hole 41 and the water outlet space 8 is changed, the purpose of adjusting the size of the flow channel is achieved, and the flow stabilizing valve plays a role of stabilizing the flow.

The extreme position of the axial sliding of the adjustment sleeve 6 is defined by the support disc 5, i.e. the extreme value of the area of the adjustment sleeve 6 covering the communication hole 41 is defined by the support disc 5. And the adjusting mechanism 7 can adjust the relative position of the supporting disk 5 and the outer ring 3 along the axial direction, when the position of the supporting disk 5 along the axial direction is changed, the limit position of the adjusting sleeve 6 sliding along the axial direction is changed, so that the limit value of the area of the adjusting sleeve 6 covering the communication hole 41 is changed, and the limit value of the communication area between the communication hole 41 and the water outlet space 8 is also changed.

According to the above analysis, one of the influencing factors of the stable flow rate of the flow stabilizing valve is the communication area between the communication hole 41 and the water outlet space 8, therefore, the position of the support disc 5 along the axial direction is adjusted by the adjusting mechanism 7, so that the area of the communication hole 41 covered by the adjusting sleeve 6 is different from the change curve of the water pressure, that is, the communication area of the communication hole 41 is changed from the change curve of the water pressure, thereby obtaining different stable flow curves and forming different stable flow rates.

In the present embodiment, the communication hole 41 is plural, the plural communication holes 41 are arranged around the circumferential direction of the inner ring 4, and the extending direction of the communication holes 41 is arranged parallel to the axial direction of the inner ring 4. By the shape of the communication hole 41, the displacement of the adjusting sleeve 6 along the axial direction is in fixed proportion to the communication area of the communication hole 41, and the controllability of flow rate adjustment is good. In other embodiments, the number of the communication holes 41 may be one, or the communication holes 41 may be provided in other shapes according to actual design requirements, and is not limited to the shape of the embodiment.

As shown in fig. 4, 6, 12 and 14, a connection between the support disc 5 and the outer ring 3 is as follows: the inner peripheral surface of the outer ring 3 forms a first threaded section 31, the outer peripheral surface of the support disc 5 forms a second threaded section 51, the second threaded section 51 is in threaded connection with the first threaded section 31, the axial length of the first threaded section 31 is larger than that of the second threaded section 51, and the adjusting mechanism 7 can drive the support disc 5 to rotate around the axis.

The adjusting mechanism 7 can drive the support disc 5 to rotate around the axis, and the position of the second threaded section 51 in the first threaded section 31 is changed, so that the relative position of the support disc 5 and the outer ring 3 along the axial direction is changed, and the purpose of adjusting the flow passage is achieved.

The extreme position of the sliding of the adjusting sleeve 6 on the inner ring 4 is defined by a lower limit flange 9 and an upper limit flange 10, as shown in detail in fig. 4, 12 and 13.

As shown in fig. 4 and 13, the adjustable flow stabilizing valve further comprises a lower limit flange 9, the lower limit flange 9 is positioned on the outer circumferential surface of the adjusting sleeve 6, and the outer diameter of the lower limit flange 9 is larger than the inner diameter of the supporting disk 5; when the lower limit flange 9 is abutted against the end surface of the support disc 5 facing the water outlet 12, the area of the communication hole 41 covered by the adjusting sleeve 6 is the minimum. When the relative position of the support disc 5 and the outer ring 3 along the axial direction is changed, the minimum area of the communication hole 41 covered by the adjusting sleeve 6 can be changed.

As shown in fig. 4 and 12, the adjustable flow stabilizing valve further comprises an upper limiting flange 10, wherein the upper limiting flange 10 is located at one end of the inner ring 4 facing the water outlet 12; when the upper limit flange 10 abuts against the end surface of the adjusting sleeve 6 facing the water outlet 12, the area of the communicating hole 41 covered by the adjusting sleeve 6 is the largest. In this embodiment, when the upper limit flange 10 abuts against the end surface of the adjusting sleeve 6 facing the water outlet 12, the adjusting sleeve 6 completely covers the communication hole 41, i.e. the flow stabilizing valve is in a completely closed state. Only in the water pressure limit state, the end surface of the adjusting sleeve 6 abuts against the upper limit flange 10; under the normal use state, the terminal surface of adjusting collar 6 can not contact upper limit flange 10, and upper limit flange 10 mainly plays the effect that prevents adjusting collar 6 and break away from.

As shown in fig. 4, 6 and 15, the adjustable flow stabilizing valve further includes a pressure bearing disk 20 and an adjusting spring 30, the pressure bearing disk 20 is fixedly sleeved on the adjusting sleeve 6, and the pressure bearing disk 20 is closer to the water inlet 11 relative to the supporting disk 5; the adjusting spring 30 is sleeved on the adjusting sleeve 6, and two ends of the adjusting spring 30 are respectively abutted against the supporting disc 5 and the pressure bearing disc 20. The water flow of the water inlet 11 can generate impact force on the pressure bearing disc 20, the pressure bearing disc 20 drives the adjusting sleeve 6 to slide on the inner ring 4, and the communication area of the communication hole 41 is adjusted; and the adjusting spring 30 exerts an acting force opposite to the water flow on the bearing disc 20, when the acting force exerted on the bearing disc 20 by the water flow and the adjusting spring 30 is basically the same, the communication area of the communication hole 41 is kept stable, and the flow stabilizing valve reaches a stable flow state.

In a daily working state, the position between the pressure bearing disc 20 and the adjusting sleeve 6 is relatively fixed; when adjusting, the relative position of the support disc 5 and the outer ring 3 along the axial direction can be adjusted simultaneously, and the position between the pressure bearing disc 20 and the adjusting sleeve 6 can be adjusted.

Specifically, the inner circumferential surface of the pressure bearing disc 20 is provided with a third thread section 201, the outer circumferential surface of the adjusting sleeve 6 is provided with a fourth thread section 61, the third thread section 201 is in threaded connection with the fourth thread section 61, and the length of the fourth thread section 61 in the axial direction is greater than that of the third thread section 201 in the axial direction; the outer circumferential surface of the pressure-bearing disk 20 is fitted to the inner circumferential surface of the outer ring 3, and the pressure-bearing disk 20 is restricted from rotating by the outer ring 3. When the adjusting sleeve 6 drives the supporting disk 5 to rotate, since the bearing disk 20 is restricted from rotating by the outer ring 3 but not from sliding in the axial direction, the adjusting sleeve 6 rotates in the bearing disk 20, and the bearing disk 20 slides upward in the axial direction.

When the position between the pressure bearing plate 20 and the adjustment sleeve 6 is changed, the distance between the pressure bearing plate 20 and the support plate 5 may be changed or maintained by simultaneously moving the support plate 5, and the compression amount of the adjustment spring 30 between the pressure bearing plate 20 and the support plate 5 may be changed or maintained. The relative positions of the pressure bearing disc 20, the adjusting sleeve 6 and the supporting disc 5 and the relation between the rotation angle of the adjusting sleeve 6 can be adjusted according to the thread design among the pressure bearing disc 20, the adjusting sleeve 6 and the supporting disc 5. According to the requirements of different flow stabilizing curves, the threads among the pressure bearing disc 20, the adjusting sleeve 6 and the supporting disc 5 and the elastic force of the adjusting spring 30 are designed.

As shown in fig. 12 and 15, the inner circumferential surface of the outer ring 3 is provided with a first guide rail 32, the outer circumferential surface of the pressure-bearing disc 20 is provided with a first groove 202, the extending direction of the first guide rail 32 is arranged parallel to the axial direction of the outer ring 3, the first groove 202 is engaged with the first guide rail 32, and the pressure-bearing disc 20 can slide along the extending direction of the first guide rail 32. By providing the first guide rail 32 and the first groove 202 between the outer ring 3 and the pressure-bearing disc 20, the pressure-bearing disc 20 can only slide in the axial direction with respect to the outer ring 3, but cannot rotate with respect to the outer ring 3. In a normal use state, the pressure-bearing disc 20 can slide relative to the outer ring 3 according to the change of water pressure; when adjustment is needed, the pressure bearing disc 20 can be kept not to rotate, and the adjusting sleeve 6 rotates in the pressure bearing disc 20 to change the relative position between the adjusting sleeve 6 and the pressure bearing disc 20.

As shown in fig. 13 and 14, the outer peripheral surface of the adjusting sleeve 6 is provided with a second guide rail 62, the inner peripheral surface of the support plate 5 is provided with a second groove 52, the extending direction of the second guide rail 62 is parallel to the axial direction of the adjusting sleeve 6, the second groove 52 is matched with the second guide rail 62, and the adjusting sleeve 6 can slide along the extending direction of the second guide rail 62. By providing the second guide rail 62 and the second groove 52 between the adjusting sleeve 6 and the support disk 5, the adjusting sleeve 6 can only slide axially relative to the support disk 5 and cannot rotate relative to the outer ring 3. In a normal use state, the adjusting sleeve 6 can slide relative to the supporting disc 5; and when the adjustment is needed, the adjusting sleeve 6 can drive the supporting disc 5 to rotate, so that the relative position between the supporting disc 5 and the outer ring 3 is adjusted.

As shown in fig. 4, 6 and 13, an adjusting space 40 is formed between the outer peripheral surface of the adjusting sleeve 6, the inner peripheral surface of the outer ring 3, the support plate 5 and the pressure-bearing plate 20, an adjusting hole 63 is formed through the peripheral surface of the adjusting sleeve 6, and the adjusting hole 63 communicates the adjusting space 40 with the communication hole 41. The adjusting space 40 is communicated with the communicating hole 41 through the adjusting hole 63, so that the adjusting space 40 is prevented from forming a closed space, and water in the adjusting space 40 can circulate with water in the inner ring 4 when the pressure bearing disc 20 and the adjusting sleeve 6 move along the axial direction.

As shown in fig. 3 to 7, the valve body 1 is provided with a mounting hole 13 penetrating through the valve body 1, the adjusting mechanism 7 includes a rotating nut 71, a rotating rod 72 and a locking member 73, the rotating nut 71 is mounted at one end of the adjusting sleeve 6 facing the water inlet 11, an inner peripheral surface of the rotating nut 71 has a mating surface 711, and a cross section of the mating surface 711 is hexagonal; the rotating rod 72 passes through the mounting hole 13, the rotating rod 72 is provided with a mating end 721 capable of being inserted into the rotating nut 71, and the shape of the outer peripheral surface of the mating end 721 is adapted to the shape of the mating surface 711 of the rotating nut 71; a locking piece 73 is mounted on the inner peripheral surface of the rotating nut 71; when the coupling end 721 of the rotating rod 72 is inserted into the rotating nut 71, the coupling end 721 acts on the locking member 73, and the locking member 73 locks the rotating nut 71 and the adjusting sleeve 6 to each other in the axial rotating direction.

When the adjusting sleeve 6 needs to be rotated to adjust the relative position of the supporting disc 5 and the outer ring 3 along the axial direction, the mating end 721 of the rotating rod 72 is inserted into the rotating nut 71, the mating end 721 acts on the locking piece 73, and the locking piece 73 locks the rotating nut 71 and the adjusting sleeve 6 to each other in the axial rotation direction; the rotating rod 72 is rotated to drive the rotating nut 71, the adjusting sleeve 6 and the supporting disk 5 to rotate together, so that the position of the supporting disk 5 on the outer ring 3 is changed.

One specific structure of the locking member 73 is shown in fig. 6 to 7. The adjusting sleeve 6 matching with the locking piece 73 is shown in fig. 13, the inner circumference of the adjusting sleeve 6 is provided with a locking groove 64, and the extending direction of the locking groove 64 is parallel to the axis of the adjusting sleeve 6.

As shown in fig. 6 to 7, the rotating nut 71 is provided with a locking hole 712 penetrating in the radial direction, the locking hole 712 is provided with a first stopper surface 713 and a second stopper surface 714 protruding inward, and the second stopper surface 714 is closer to the adjusting sleeve 6 than the first stopper surface 713.

The locking member 73 includes a locking rod 731, a locking flange 732 and a locking spring 733, the locking rod 731 is inserted into the locking hole 712, the length of the locking rod 731 is greater than the length of the locking hole 712, both ends of the locking rod 731 are an abutting end 734 and an insertion end 735, respectively, the insertion end 735 of the locking rod 731 is disposed facing the adjustment sleeve 6 and can be inserted into the locking groove 64; the locking flange 732 is fixed on the locking rod 731, and the locking flange 732 is located between the first limiting surface 713 and the second limiting surface 714; the locking spring 733 is sleeved on the locking rod 731, and two ends of the locking spring 733 are respectively abutted against the locking flange 732 and the second limiting surface 714; when no external force is applied, the locking spring 733 presses the locking flange 732 against the first stopper face 713, the abutment end 734 of the locking lever 731 extends into the internal space of the swivel nut 71, and the insertion end 735 of the locking lever 731 retracts into the locking hole 712.

In the daily use state, the insertion end 735 of the locking lever 731 is retracted into the locking hole 712, and the locking lever 731 does not interfere with the movement of the adjustment sleeve 6 in the axial direction. When the coupling end 721 of the rotating lever 72 is inserted into the rotating nut 71 during adjustment, the coupling end 721 of the rotating lever 72 presses the abutting end 734 of the locking lever 731, so that the insertion end 735 of the locking lever 731 protrudes from the locking hole 712 and is inserted into the locking groove 64, thereby mutually locking the rotating nut 71 and the adjusting sleeve 6 in the axial rotating direction; at this time, when the rotating rod 72 drives the rotating nut 71 to rotate, the adjusting sleeve 6 can be driven to rotate together.

As shown in fig. 3, 5 and 9, the adjusting mechanism 7 further includes a rotating seat 74 and a rotating sleeve 75, the rotating seat 74 is mounted outside the valve body 1, and the outer peripheral surface of the rotating seat 74 is disposed coaxially with the mounting hole 13; the rotating rod 72 is fixed with the rotating sleeve 75, the rotating sleeve 75 is sleeved on the rotating seat 74, the rotating rod 72 penetrates through the rotating seat 74 and is inserted into the mounting hole 13, and the rotating sleeve 75 can rotate on the rotating seat 74 and move along the axial direction.

When the rotating rod 72 needs to be inserted into the rotating nut 71, external force is applied to the rotating sleeve 75, so that the rotating sleeve 75 and the rotating rod 72 move axially until the mating end 721 of the rotating rod 72 is inserted into the rotating nut 71; the rotating sleeve 75 is rotated to rotate the rotating rod 72 and the rotating nut 71.

As shown in fig. 9, the rotary seat 74 is provided with a first projection 741 projecting outward in the radial direction, and the rotary sleeve 75 is provided with a second projection 751 projecting inward in the radial direction, the second projection 751 being located between the first projection 741 and the valve body 1. The rotary sleeve 75 is restricted on the rotary base 74 by the first and second

convex rings

741 and 751.

As shown in fig. 9, the adjusting mechanism 7 further includes a seal ring 76, the seal ring 76 is located between the rotating seat 74 and the rotating rod 72, and the seal ring 76 is in contact with the inner peripheral surface of the rotating seat 74, the outer peripheral surface of the rotating rod 72, and the outer surface of the valve body 1. By providing the seal ring 76, the seal between the rotating rod 72 and the valve body 1 is maintained, and the water is prevented from flowing out of the mounting hole 13. Wherein, adjustment mechanism 7 still includes reset spring 77, and reset spring 77 overlaps on dwang 72, and reset spring 77's both ends respectively butt in rotating cover 75 and sealing washer 76. The return spring 77 keeps the seal 76 in a sealed state by keeping the pivot rod 72 away from the pivot nut 71 when no external force is applied to the pivot rod, and by keeping the seal 76 pressed by the return spring 77.

As shown in fig. 8, a rotating nut 71 is attached to an end portion of the inner ring 4, and an outer peripheral surface of the rotating nut 71 is screwed to an inner peripheral surface of the inner ring 4. The inner ring 4 is provided with a first clamping surface 42 extending inwards, the end surface of the rotating nut 71 facing the first clamping surface 42 is a second clamping surface 715, and a clamping space 50 is formed between the first clamping surface 42 and the second clamping surface 715; the adjustable flow stabilizer valve further comprises an elastic ring 60, and the elastic ring 60 is located in the clamping space 50. When the rotating nut 71 rotates, the distance between the first clamping surface 42 and the second clamping surface 715 changes, so that the elastic ring 60 deforms, and the inner diameter formed by the elastic ring 60 changes according to the deformation of the elastic ring 60, thereby assisting in adjusting the size of the flow passage. The shape and the elastic force of the elastic ring 60 can be set according to the requirements of the actual flow channel adjustment.

As shown in fig. 11, the inner peripheral surface of the valve body 1 is further provided with an inwardly extending mounting flange 14, and the outer ring 3 is placed on the mounting flange 14 so that the relative position between the outer ring 3 and the valve body 1 is fixed.

As shown in fig. 17, the adjustable flow stabilizer valve selectively has a plurality of flow stabilization curves, i.e., a plurality of flow stabilization amounts, by adjusting the relative position between the communication hole 41 and the adjusting sleeve 6, the compression amount of the adjusting spring 30, and the degree of extrusion of the elastic ring 60.

When the adjustable flow stabilizing valve is used for a gas water heater, the requirement of a 13L water heater and the requirement of a 16L or 20L water heater with larger flow can be met, the research and development cost can be reduced, the research and development period can be shortened, and the universality is good; the adjustable flow stabilizing valve can be debugged according to the actual water pressure condition of a user home, so that the water heater works under the most suitable flow, and the adaptability is stronger; the adjustable flow stabilizing valve is not only an adjusting valve, but also a flow stabilizing valve, has two purposes, and can adjust the working water pressure of the flow stabilizing valve while adjusting the flow.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. The utility model provides a steady flow valve with adjustable, includes the valve body, form the runner in the valve body, still be equipped with water inlet and delivery port on the valve body, water inlet, delivery port communicate respectively to the both ends of runner, its characterized in that, steady flow valve with adjustable still includes:

2. The adjustable flow stabilizer valve according to claim 1, wherein a first threaded section is formed on an inner peripheral surface of the outer ring, a second threaded section is formed on an outer peripheral surface of the support disc, the second threaded section is in threaded connection with the first threaded section, the axial length of the first threaded section is greater than the axial length of the second threaded section, and the adjustment mechanism can drive the support disc to rotate around the axis.

3. The adjustable flow stabilizer valve according to claim 1, further comprising a lower limit flange, wherein the lower limit flange is located on the outer circumferential surface of the adjusting sleeve, and the outer diameter of the lower limit flange is larger than the inner diameter of the support disc; when the lower limiting flange is abutted against the end face, facing the water outlet, of the supporting disc, the area of the communicating hole covered by the adjusting sleeve is the smallest.

4. The adjustable flow stabilizer valve according to claim 1, further comprising an upper limiting flange at an end of the inner ring facing the water outlet; when the upper limiting flange is abutted against the end face of the adjusting sleeve facing the water outlet, the area of the communicating hole covered by the adjusting sleeve is the largest.

5. The adjustable flow stabilizer valve of claim 1, further comprising:

6. The adjustable flow stabilizing valve according to claim 5, wherein the inner circumferential surface of the outer ring and the outer circumferential surface of the pressure-bearing disc are respectively provided with a first guide rail and a first groove, the extending direction of the first guide rail is parallel to the axial direction of the outer ring, the first groove is matched with the first guide rail, and the pressure-bearing disc can slide along the extending direction of the first guide rail.

7. The adjustable flow stabilizing valve according to claim 5, wherein an adjusting space is formed between the outer circumferential surface of the adjusting sleeve, the inner circumferential surface of the outer ring, the supporting disk and the bearing disk, and a through adjusting hole is formed in the circumferential surface of the adjusting sleeve and communicates the adjusting space and the communicating hole.

8. The adjustable flow stabilizing valve according to claim 1, wherein a second guide rail and a second groove are respectively disposed on an inner circumferential surface of the support plate and an outer circumferential surface of the adjusting sleeve, an extending direction of the second guide rail is parallel to an axial direction of the adjusting sleeve, the second groove is matched with the second guide rail, and the adjusting sleeve can slide along the extending direction of the second guide rail.

9. The adjustable flow stabilizing valve according to claim 1, wherein the adjusting sleeve can drive the supporting disk to rotate, and the valve body is provided with a mounting hole penetrating through the valve body; the adjustment mechanism includes:

10. The adjustable flow stabilizer valve as claimed in claim 9, wherein the inner circumferential surface of the adjusting sleeve is provided with a locking groove, and the locking groove extends in a direction parallel to the axis of the adjusting sleeve; the rotating nut is provided with a locking hole which penetrates through the rotating nut along the radial direction, the locking hole is provided with a first limiting surface and a second limiting surface which protrude inwards, and the second limiting surface is closer to the adjusting sleeve than the first limiting surface;

the locking member includes:

11. The adjustable flow stabilizer valve of claim 9, wherein the adjustment mechanism further comprises:

12. The adjustable flow stabilizer valve according to claim 11, wherein the rotating seat is provided with a first collar projecting radially outward, the rotating sleeve is provided with a second collar projecting radially inward, and the second collar is located between the first collar and the valve body.

13. The adjustable flow stabilizing valve according to claim 11 or 12, wherein the adjusting mechanism further comprises a sealing ring, the sealing ring is located between the rotating seat and the rotating rod, and the sealing ring is in contact with the inner circumferential surface of the rotating seat, the outer circumferential surface of the rotating rod and the outer surface of the valve body.

14. The adjustable flow stabilizing valve according to claim 13, wherein the adjusting mechanism further comprises a return spring, the return spring is sleeved on the rotating rod, and two ends of the return spring are respectively abutted against the rotating sleeve and the sealing ring.

15. The adjustable flow stabilizer according to claim 9, further comprising a bearing disk, wherein the bearing disk is sleeved on the adjusting sleeve, the bearing disk is in threaded connection with the adjusting sleeve, the outer circumferential surface of the bearing disk is matched with the inner circumferential surface of the outer ring, and the bearing disk is limited by the outer ring to rotate.

16. The adjustable flow stabilizer valve according to claim 1, wherein the adjusting mechanism comprises a rotating nut inserted into the inner ring and capable of adjusting a position in an axial direction of the inner ring; the inner ring is provided with a first clamping surface extending inwards, the end surface of the rotating nut facing the first clamping surface is a second clamping surface, and a clamping space is formed between the first clamping surface and the second clamping surface; the adjustable flow stabilizing valve further comprises an elastic ring, and the elastic ring is located in the clamping space.