Steady flow valve

Abstract

The flow stabilizing valve comprises a shell and a valve rod, the shell comprises a first end and a second end which are oppositely arranged in the flowing direction of fluid, the valve rod is located in the shell and located at the first end of the shell, and the valve rod can be pushed by the fluid to leave an initial position and move in the flowing direction of the fluid. Under the action of restoring force, the fluid can move back to the initial position in the direction opposite to the flowing direction of the fluid; the flow limiting disc is arranged on the side, facing the second end of the shell, of the valve rod and connected with the valve rod, the flow limiting ring is fixedly arranged in the shell and located at the second end of the shell, and when the valve rod moves, the flow limiting disc can be driven to move, so that the displacement of the flow limiting disc relative to the flow limiting ring is changed; and the size of the fluid passing through a liquid outlet between the flow limiting disc and the flow limiting ring is changed. Flow control of fluid is achieved through linkage cooperation of the valve rod, the flow limiting ring and the flow limiting disc, movement of the valve rod is achieved only through the thrust effect of fluid flowing, and the flow limiting valve can be applied to various fluid pipelines so as to accurately control the flow.

Description

Technical Field

[0001] The utility model relates to the field of water heaters, in particular to a flow stabilizing valve. Background Art

[0002] For water heater users, the water flow in their homes is unstable. If the water flow fluctuates or the pressure is too high, it will bring a bad experience. For example, water flow fluctuations will cause the water outlet of the water heater to fluctuate between hot and cold. Excessive water pressure may cause parts to bulge and crack, or the temperature may be too low, causing the back end to freeze and crack while continuing to flow water.

[0003] Therefore, the water flow control problem of water heaters has become the focus of attention now. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art and provide a flow stabilizing valve.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A flow-stabilizing valve, comprising:

[0007] A housing and a valve stem, wherein the housing comprises a first end and a second end which are arranged opposite to each other along a flow direction of the fluid, and the valve stem is located in the housing and at the first end of the housing, and the valve stem can be pushed by the fluid to leave an initial position and move along a flow direction of the fluid, and can move back to the initial position along a reverse direction of the flow of the fluid under the action of a restoring force;

[0008] A flow limiting ring and a flow limiting disk, the flow limiting disk is arranged on the side of the valve stem facing the second end of the shell and is connected to the valve stem, the flow limiting ring is fixedly arranged in the shell and is located at the second end of the shell, and when the valve stem moves, it can drive the flow limiting disk to move so that its displacement relative to the flow limiting ring changes, so as to change the size of the liquid outlet between the flow limiting disk and the flow limiting ring.

[0009] In the present technical solution, the flow control of the fluid is achieved through the linkage of the valve stem, the flow limiting ring and the flow limiting disk. According to the different flow rates of the fluid, the valve stem can be pushed away from its initial position by the fluid and moved to different positions inside the shell along the flow direction of the fluid. Therefore, the valve stem can be automatically adjusted according to the fluids of different flow rates, thereby achieving precise flow control. In addition, a flow limiting ring and a flow limiting disk are added inside the flow stabilizing valve, and the size of the liquid outlet of the flow stabilizing valve is changed through the synergistic effect of the two. This arrangement not only does not occupy the overall structural space of the flow stabilizing valve, but also does not require other external forces. The movement of the valve stem is achieved only through the thrust of the fluid flow. This linkage form has a simple structure and is easy to use. It can be applied to various fluid pipelines to achieve precise control of the flow.

[0010] Preferably, when the fluid pressure does not reach the steady flow point, the valve stem is located at the initial position of the valve stem;

[0011] When the fluid pressure reaches the steady flow point and approaches the dangerous point, the valve stem drives the flow limiting disk to start moving along the flow direction of the fluid under the push of the fluid, and leaves the initial position of the valve stem and approaches the limit position of the valve stem, so as to gradually reduce the size of the liquid outlet between the flow limiting disk and the flow limiting ring;

[0012] When the fluid pressure reaches the danger point, the valve stem is located at the limit position of the valve stem, and the flow limiting disk and the flow limiting ring fit together to limit the size of the liquid outlet between the flow limiting disk and the flow limiting ring.

[0013] In the present technical solution, this structural form is adopted, and the valve stem can be pushed by the fluid to leave its initial position and move to different positions inside the shell along the flow direction of the fluid, thereby producing different working states of the flow stabilizing valve. The flow stabilizing valve can realize precise control of the flow rate according to different working states, thereby protecting the pipeline and equipment from excessive flow shock and damage, ensuring stable and safe flow control, and improving the user experience and comfort.

[0014] Preferably, the flow stabilizing valve further comprises:

[0015] A first retaining ring is arranged inside the housing and located on a side of the valve stem facing the first end of the housing. The first retaining ring and the valve stem move synchronously and can be pushed by the fluid to change the positions of the first retaining ring and the valve stem.

[0016] A second retaining ring is arranged inside the housing and located on a side of the valve stem facing the second end of the housing, and is fixedly connected to the housing;

[0017] The elastic structure is arranged inside the shell and abuts between the first retaining ring and the second retaining ring.

[0018] In the present technical solution, the setting of the first baffle ring and the second baffle ring and the function of the elastic structure can provide damping and stability, so that the valve stem and the flow limiting disk can move smoothly under the push of the fluid, and return to the initial position under the action of the restoring force of the elastic structure, thereby ensuring a stable fluid control effect.

[0019] Preferably, an abutment portion extending along the radial direction of the central axis of the first retaining ring to abut against the first retaining ring is provided on the outer wall surface of the valve stem on the side of the first end facing the housing.

[0020] In the present technical solution, the setting of the abutment portion can effectively limit the first baffle ring from detaching from the valve stem in the opposite direction of the fluid flow, ensuring that the first baffle ring is always connected to the valve stem, and preventing the first baffle ring from detaching from the valve stem due to fluid backflow and affecting the normal operation of the flow stabilizing valve.

[0021] Preferably, a limiting portion extending in the radial direction of the central axis of the second retaining ring is provided on the inner wall surface of the shell on the second end side of the second retaining ring toward the shell, for limiting the movement of the second retaining ring along the flow direction of the fluid.

[0022] In the present technical solution, the setting of the limit part can prevent the second baffle ring from moving beyond the design range during fluid flow, ensure the normal operation of the flow stabilizing valve within the design working range, and prevent unnecessary failures or damage caused by the second baffle ring position exceeding the limit.

[0023] Preferably, flow holes for fluid to pass through are provided on the circumferential side wall of the valve stem between the first baffle ring and the second baffle ring and on the second baffle ring.

[0024] In the present technical solution, the setting of the flow holes can realize the control and regulation of the fluid, so that the fluid can smoothly pass through the flow-stabilizing valve and realize stable fluid flow. Moreover, the fluid flow rate can be regulated by changing the size or number of the flow holes, thereby meeting the demand for fluid flow under different working conditions and improving the flexibility and applicability of the flow-stabilizing valve. In addition, the setting of the flow holes can also reduce the vibration and turbulence of the fluid inside the shell, thereby improving the stability and service life of the flow-stabilizing valve.

[0025] Preferably, the flow limiting disk is a disk with a toothed structure on the outer edge, and the toothed structure is matched with the inner wall surface of the flow limiting ring.

[0026] In the present technical solution, this structural form is adopted. When the fluid pressure is too high so that the flow limiting disk and the flow limiting ring fit together, the fluid can only flow out through the gap between the toothed structure at the outer edge of the flow limiting disk and the inner wall of the flow limiting ring, thereby further realizing precise control of the fluid flow rate.

[0027] Preferably, the central axis of the flow limiting ring is the same as the central axis of the valve stem.

[0028] In the present technical solution, this structural form is adopted, so that the fluid can pass through the flow stabilizing valve quickly, and the control effect of the flow stabilizing valve on the fluid flow can be further enhanced.

[0029] Preferably, a receiving groove for receiving the valve stem and matching the cross-sectional size of the valve stem is provided on the side of the flow limiting disk facing the valve stem, and the flow limiting disk is sleeved on the valve stem to move synchronously with the valve stem.

[0030] In the present technical solution, this structural form is adopted, and the flow limiting disk can move synchronously with the movement of the valve stem, thereby ensuring the stability of the relative position between the flow limiting disk and the valve stem, so that the valve stem is driven by the fluid to drive the flow limiting disk to move, thereby achieving the purpose of changing the size of the liquid outlet between the flow limiting disk and the flow limiting ring.

[0031] Preferably, the material of the flow limiting ring is a rubber ring, so that the flow limiting ring can be deformed according to the pressure of the fluid.

[0032] In this technical solution, the rubber ring has a certain elasticity and deformation ability. When subjected to fluid pressure, it can deform to adapt to changes in fluid pressure, ensuring the stability and reliability of the flow limiting ring in regulating fluid flow under different working conditions.

[0033] The positive and progressive effect of the utility model is that the flow-stabilizing valve realizes the flow control of the fluid through the linkage of the valve stem, the flow-limiting ring and the flow-limiting disk. According to the different flow rates of the fluid, the valve stem can be pushed away from its initial position by the fluid and moved to different positions inside the shell along the flow direction of the fluid. Therefore, the valve stem can be automatically adjusted according to the fluids of different flow rates, thereby realizing precise flow control. In addition, a flow-limiting ring and a flow-limiting disk are added inside the flow-stabilizing valve, and the size of the liquid outlet of the flow-stabilizing valve is changed through the synergistic effect of the two. Such a setting not only does not occupy the overall structural space of the flow-stabilizing valve, but also does not require other external forces. The movement of the valve stem is realized only by the thrust of the fluid flow. This linkage form has a simple structure and is easy to use. It can be applied to various fluid pipelines to realize precise control of the flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is an exploded view of a flow regulating valve according to a preferred embodiment of the present invention.

[0035] Figure 2 This is a schematic diagram of the internal structure of a flow stabilizing valve according to a preferred embodiment of the present utility model.

[0036] Figure 3 It is a structural schematic diagram of the valve stem of the flow stabilizing valve in the initial position according to a preferred embodiment of the utility model.

[0037] Figure 4 It is a structural schematic diagram of the valve stem of the flow stabilizing valve in a preferred embodiment of the utility model in the limit position.

[0038] Figure 5 It is a top view of the valve stem of the flow stabilizing valve in a preferred embodiment of the utility model at the limit position.

[0039] Description of reference numerals:

[0040] Flow control valve 100

[0041] Housing 11

[0042] First End 111

[0043] Second end 112

[0044] Liquid inlet 113

[0045] Liquid outlet 114

[0046] Limiting part 115

[0047] Stem 12

[0048] Contact part 121

[0049] Current limiting ring 13

[0050] Restriction plate 14

[0051] Accommodation slot 141

[0052] First retaining ring 15

[0053] Second retaining ring 16

[0054] Elastic structure 17

[0055] Flow hole 18

[0056] Fluid flow direction X

[0057] Initial position of valve stem M

[0058] Limit position of valve stem N DETAILED DESCRIPTION

[0059] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0060] like Figure 1-Figure 5 As shown, a steady flow valve 100 is disclosed.

[0061] The flow regulating valve 100 includes a shell 11 and a valve stem 12. Specifically, the shell 11 includes a first end 111 and a second end 112 which are relatively arranged along the flow direction X of the fluid, and the valve stem 12 is located inside the shell 11 and at the first end 111 of the shell 11. Therefore, the liquid inlet 113 of the flow regulating valve 100 is arranged at the first end 111 of the shell 11, and the liquid outlet 114 of the flow regulating valve 100 is arranged at the second end 112 of the shell 11.

[0062] The valve stem 12 can be pushed by the fluid to leave the initial position M of the valve stem and move along the flow direction X of the fluid, and can move back to the initial position M of the valve stem in the opposite direction of the fluid flow under the action of the restoring force.

[0063] At the same time, the flow regulating valve 100 also includes a flow limiting ring 13 and a flow limiting disk 14. Specifically, the flow limiting disk 14 is arranged on the side of the valve stem 12 facing the second end 112 of the shell 11 and is connected to the valve stem 12. The flow limiting disk 14 can move with the movement of the valve stem 12, and the flow limiting ring 13 is fixedly arranged in the shell 11 and is located at the second end 112 of the shell 11.

[0064] When the valve stem 12 moves, it can drive the limiting disk 14 to move so that the displacement of the limiting disk 14 relative to the limiting ring 13 along the flow direction X of the fluid changes, so as to achieve the purpose of changing the size of the liquid outlet 114 between the limiting disk 14 and the limiting ring 13 through which the fluid passes.

[0065] In this embodiment, an interference fit connection is preferably adopted between the flow limiting ring 13 and the inner wall surface of the shell 11 to enhance the stability of the connection between the two and prevent the flow limiting ring 13 from being pushed away from the shell 11 by the fluid pressure, thereby causing the flow regulating valve 100 to fail.

[0066] In this embodiment, the flow control of the fluid is achieved through the linkage of the valve stem 12, the flow limiting ring 13 and the flow limiting disk 14. According to the different flow rates of the fluid, the valve stem 12 can be pushed away from its initial position by the fluid and moved to different positions inside the housing 11 along the flow direction X of the fluid. Therefore, the valve stem 12 can be automatically adjusted according to the fluids of different flow rates, thereby achieving precise flow control. In addition, a flow limiting ring 13 and a flow limiting disk 14 are added inside the steady flow valve 100. The purpose of changing the size of the liquid outlet 114 of the steady flow valve 100 through the synergistic effect of the two is that this setting not only does not occupy the overall structural space of the steady flow valve 100, but also does not require other external forces. The movement of the valve stem 12 is achieved only by the thrust of the fluid flow. This linkage form has a simple structure and is easy to use. It can be applied to various fluid pipelines to achieve precise control of the flow rate.

[0067] like Figure 1-Figure 4 As shown, the steady flow valve 100 further includes a first baffle ring 15 , a second baffle ring 16 , and an elastic structure 17 disposed inside the housing 11 and abutting between the first baffle ring 15 and the second baffle ring 16 .

[0068] Specifically, the first baffle ring 15 is arranged inside the shell 11 and is located on the side of the valve stem 12 facing the first end 111 of the shell 11. The first baffle ring 15 and the valve stem 12 can move synchronously and can be pushed by the fluid to change their positions, that is, both can be pushed by the fluid to leave the initial position M of the valve stem and move along the flow direction X of the fluid, and can move back to the initial position M of the valve stem in the opposite direction of the fluid flow under the action of the restoring force.

[0069] The second baffle ring 16 is disposed inside the housing 11 and is located on the side of the valve stem 12 facing the second end 112 of the housing 11 , that is, on the end of the valve stem 12 away from the first baffle ring 15 . The second baffle ring 16 is fixedly connected to the housing 11 .

[0070] At the same time, the first baffle ring 15 and the second baffle ring 16 are both arranged around the outer wall surface of the valve stem 12, and a gap is provided between the outer peripheral side of the first baffle ring 15 and the inner wall surface of the shell 11, so that the first baffle ring 15 can move along the central axis direction of the valve stem 12 inside the shell 11 when pushed by the fluid.

[0071] However, the second retaining ring 16 is fixedly connected to the inner wall surface of the housing 11. In this embodiment, the two are connected by interference fit. Specifically, a limiting portion 115 extending along the radial direction of the central axis of the second retaining ring 16 is provided on the inner wall surface of the housing 11 on the side of the second retaining ring 16 facing the second end 112 of the housing 11, and is used to limit the movement of the second retaining ring 16 along the flow direction X of the fluid.

[0072] In this embodiment, the setting of the limit portion 115 can prevent the second baffle ring 16 from moving beyond the design range during fluid flow, ensure the normal operation of the flow regulating valve 100 within the design working range, and prevent unnecessary failures or damage caused by the second baffle ring 16 exceeding the limit position.

[0073] At the same time, an abutment portion 121 extending along the radial direction of the central axis of the first retaining ring 15 to abut against the first retaining ring 15 is provided on the outer wall surface of the valve stem 12 on the side facing the first end 111 of the housing 11 .

[0074] In this embodiment, the setting of the abutment portion 121 can effectively limit the first baffle ring 15 from detaching from the valve stem 12 in the opposite direction of the fluid flow, ensuring that the first baffle ring 15 is always connected to the valve stem 12, and preventing the first baffle ring 15 from detaching from the valve stem 12 due to fluid backflow and affecting the normal operation of the flow regulating valve 100.

[0075] In other embodiments, the abutment portion 121 and the limiting portion 115 of other structural forms may also be used in the valve stem 12 or inside the housing 11 , as long as the flow regulating valve 100 can control the fluid flow.

[0076] Therefore, in this embodiment, the setting of the first baffle ring 15 and the second baffle ring 16 and the function of the elastic structure 17 can provide damping and stability, so that the valve stem 12 and the flow limiting disk 14 can move smoothly under the push of the fluid and return to the initial position under the action of the restoring force of the elastic structure 17, thereby ensuring a stable fluid control effect.

[0077] In addition, flow holes 18 for fluid to pass through are provided on the circumferential wall surface of the valve stem 12 between the first baffle ring 15 and the second baffle ring 16 and on the second baffle ring 16 .

[0078] The setting of the flow holes 18 can realize the control and regulation of the fluid, so that the fluid can smoothly pass through the flow-stabilizing valve 100, and realize stable fluid flow. Moreover, the flow rate of the fluid can be regulated by changing the size or number of the flow holes 18, so as to meet the demand for the flow rate of the fluid under different working conditions, and improve the flexibility and applicability of the flow-stabilizing valve 100. In addition, the setting of the flow holes 18 can also reduce the vibration and turbulence of the fluid inside the housing 11, and improve the stability and service life of the flow-stabilizing valve 100.

[0079] like Figure 5 As shown, the flow limiting disk 14 is a disk with a toothed structure on the outer edge, and the toothed structure is matched with the inner wall surface of the flow limiting ring 13.

[0080] When the fluid pressure is too high so that the limiting disk 14 and the limiting ring 13 fit together, the fluid can only flow out through the gap between the toothed structure at the outer edge of the limiting disk 14 and the inner wall of the limiting ring 13, further achieving precise control of the fluid flow.

[0081] Among them, each tooth structure in the tooth structure can be set as needed, that is, the size, number and gap between each tooth structure in the tooth structure can be set as needed, as long as the control of the fluid flow by the flow regulating valve 100 is satisfied.

[0082] like Figure 3-Figure 4 As shown, in this embodiment, the central axis of the flow limiting ring 13 is the same as the central axis of the valve stem 12. This structural form allows the fluid to quickly pass through the steady flow valve 100, and can further enhance the control effect of the steady flow valve 100 on the fluid flow.

[0083] like Figure 2 As shown, a receiving groove 141 for receiving the valve stem 12 and matching the cross-sectional size of the valve stem is provided on the side of the flow limiting disk 14 facing the valve stem 12, and the flow limiting disk 14 is sleeved on the valve stem 12 to move synchronously with the valve stem 12. With this structural form, the flow limiting disk 14 can move synchronously with the movement of the valve stem 12, ensuring the relative position stability between the flow limiting disk 14 and the valve stem 12, so that the valve stem 12 is driven by the fluid to drive the flow limiting disk 14 to move, thereby achieving the purpose of changing the size of the fluid outlet 114 between the flow limiting disk 14 and the flow limiting ring 13.

[0084] Meanwhile, in the present embodiment, it is preferred that the valve stem 12 and the flow limiting disk 14 are connected by interference fit to enhance the stability of the connection between the two.

[0085] Preferably, in this embodiment, the material of the flow limiting ring 13 is a rubber ring, so that the flow limiting ring 13 can be deformed according to the pressure of the fluid.

[0086] In this embodiment, the rubber ring has certain elasticity and deformation ability. When subjected to fluid pressure, it can deform to adapt to the change of fluid pressure, ensuring the stability and reliability of the flow limiting ring 13 in regulating the fluid flow under different working conditions.

[0087] In summary, in the flow regulating valve 100 of this embodiment, there are at least three motion states of the valve stem 12:

[0088] When the fluid pressure does not reach the steady flow point, the valve stem 12 is located at the initial position M of the valve stem, that is, the valve stem 12 remains in the original position.

[0089] When the fluid pressure reaches the steady flow point and approaches the danger point, the valve stem 12 and the first baffle ring 15, pushed by the fluid, drive the limiting disk 14 to start moving along the flow direction X of the fluid, and leave the initial position M of the valve stem and approach the limiting position N of the valve stem, that is, the first baffle ring 15 moves along the central axis direction of the valve stem 12 toward the direction close to the second baffle ring 16, and at the same time the elastic structure 17 is gradually compressed, and the limiting disk 14 also gradually approaches the limiting ring 13, and at this time the liquid outlet 114 between the limiting disk 14 and the limiting ring 13 also gradually shrinks.

[0090] When the fluid pressure reaches the danger point, the valve stem 12 is located at the valve stem limit position N, at which time the flow limiting disc 14 and the flow limiting ring 13 fit together to limit the size of the liquid outlet 114 between the flow limiting disc 14 and the flow limiting ring 13. Here, "limitation" refers to: Figure 5 As shown, a channel for fluid circulation is also provided on the peripheral side of the toothed structure. At this time, the cross-sectional size of the liquid outlet 114 is the smallest.

[0091] In this embodiment, this structural form is adopted, and the valve stem 12 can be pushed by the fluid to leave its initial position and move to different positions inside the shell 11 along the flow direction X of the fluid, thereby producing different working states of the steady flow valve 100. The steady flow valve 100 can realize precise control of the flow rate according to different working states, thereby protecting the pipeline and equipment from excessive flow shock and damage, ensuring stable and safe flow control, and improving the user experience and comfort.

[0092] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A flow-stabilizing valve, characterized in that: It includes: A housing and a valve stem, wherein the housing comprises a first end and a second end which are arranged opposite to each other along a flow direction of the fluid, and the valve stem is located in the housing and at the first end of the housing, and the valve stem can be pushed by the fluid to leave an initial position and move along a flow direction of the fluid, and can move back to the initial position along a reverse direction of the flow of the fluid under the action of a restoring force; A flow limiting ring and a flow limiting disk, the flow limiting disk is arranged on the side of the valve stem facing the second end of the shell and is connected to the valve stem, the flow limiting ring is fixedly arranged in the shell and is located at the second end of the shell, and when the valve stem moves, it can drive the flow limiting disk to move so that its displacement relative to the flow limiting ring changes, so as to change the size of the liquid outlet between the flow limiting disk and the flow limiting ring.

2. The flow control valve according to claim 1, characterized in that: When the fluid pressure does not reach the steady flow point, the valve stem is at the initial position of the valve stem; When the fluid pressure reaches the steady flow point and approaches the dangerous point, the valve stem drives the flow limiting disk to start moving along the flow direction of the fluid under the push of the fluid, and leaves the initial position of the valve stem and approaches the limit position of the valve stem, so as to gradually reduce the size of the liquid outlet between the flow limiting disk and the flow limiting ring; When the fluid pressure reaches the danger point, the valve stem is located at the limit position of the valve stem, and the flow limiting disk and the flow limiting ring fit together to limit the size of the liquid outlet between the flow limiting disk and the flow limiting ring.

3. The flow regulating valve according to claim 1, characterized in that: The flow control valve also includes: A first retaining ring is arranged inside the housing and located on a side of the valve stem facing the first end of the housing. The first retaining ring and the valve stem move synchronously and can be pushed by the fluid to change the positions of the first retaining ring and the valve stem. A second retaining ring is arranged inside the housing and located on a side of the valve stem facing the second end of the housing, and is fixedly connected to the housing; The elastic structure is arranged inside the shell and abuts between the first retaining ring and the second retaining ring.

4. The flow regulating valve according to claim 3, characterized in that: An abutment portion extending along the radial direction of the central axis of the first retaining ring to abut against the first retaining ring is provided on the outer wall surface of the valve stem facing the first end of the housing.

5. The flow regulating valve according to claim 3, characterized in that: A limiting portion extending in the radial direction of the central axis of the second baffle ring is provided on the inner wall surface of the shell on the second end side of the second baffle ring toward the shell, for limiting the movement of the second baffle ring along the flow direction of the fluid.

6. The flow regulating valve according to claim 3, characterized in that: A flow hole for fluid to pass through is arranged on the peripheral side wall surface of the valve stem located between the first baffle ring and the second baffle ring and on the second baffle ring.

7. The flow regulating valve according to claim 1, characterized in that: The flow limiting disk is a disk with a toothed structure on the outer edge, and the toothed structure is matched with the inner wall surface of the flow limiting ring.

8. The flow regulating valve according to claim 1, characterized in that: The central axis of the flow limiting ring is the same as the central axis of the valve stem.

9. The flow regulating valve according to claim 1, characterized in that: A receiving groove for receiving the valve stem and matching the cross-sectional size of the valve stem is provided on one side of the flow limiting disc facing the valve stem. The flow limiting disc is sleeved on the valve stem to move synchronously with the valve stem.

10. The flow regulating valve according to claim 1, characterized in that: The material of the flow limiting ring is a rubber ring, so that the flow limiting ring can be deformed according to the pressure of the fluid.

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