Flow-limiting non-return device and water outlet device

Abstract

The utility model discloses a flow-limiting non-return device, which comprises a shell, a flow-limiting valve, a flow-limiting valve, a flow-limiting valve, a flow-limiting valve and a flow-limiting valve, the water control piece is arranged in the water passing channel and comprises a deformable membrane part, and a deformable flow limiting ring extends out of the side, close to the water inlet direction, of the membrane part; when water flow flows into the water passing channel in the water inlet direction, the flow limiting ring can be impacted to change the water passing sectional area of the water passing channel, and the water flow flows out from the space between the membrane part and the inner wall of the water passing channel; when water flow flows into the water passing channel in the direction opposite to the water inlet direction, the water flow can impact the membrane part to deform so that the membrane part can seal the water passing channel. The two functions of flow limiting and non-return of the water path can be achieved at the same time only through one water control piece, multiple different parts do not need to be assembled and combined, the structure is simple, and assembling is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve field especially is related to a flow limiting check device and water outlet device. BACKGROUND

[0002] Some water outlet devices such as shower, faucet, right-angle valve etc. can use flow limiting check valve in its waterway to control water flow one-way flow and adjust water flow, however, in some prior art, flow limiting check valve often needs to use multiple parts to realize the effect of flow limiting and check, such as, through spring and piston to realize check, still need to use O-shaped sealing ring that can be deformed by water flow impact to control water flow, therefore, the above-mentioned flow limiting check valve has more parts, and the assembly process is complex. SUMMARY

[0003] The utility model provides a flow limiting check device, aims at solving the technical problem of multiple parts and complex assembly process of flow limiting check valve in prior art.

[0004] To achieve the above-mentioned purpose, the first aspect embodiment of the utility model provides a flow limiting check device, comprising:

[0005] Shell, water passing channel is arranged in the shell;

[0006] Water control part is arranged in the water passing channel, including deformable membrane part, the side of the membrane part near the water inlet direction extends the deformable flow limiting ring;

[0007] When water flow flows into the water passing channel along the water inlet direction, the flow limiting ring can be impacted to deform to change the water passing cross-sectional area of the water passing channel, and flow out from between the membrane part and the inner wall of the water passing channel;

[0008] When water flow flows into the water passing channel along the reverse direction of the water inlet direction, the membrane part can be impacted to deform to make the membrane part close the water passing channel.

[0009] The flow limiting check device provided by the first aspect embodiment of the utility model can realize the functions of flow limiting and check of waterway simultaneously through only one water control part, does not need multiple different parts assembly combination, simple structure, and convenient assembly.

[0010] According to some embodiments of the utility model, the water passing channel is provided with a mounting portion, and the mounting portion is provided with a mounting hole and a first water passing hole;

[0011] One side of the water control part is provided with a fixing buckle, and the fixing buckle can be buckled in the mounting hole to mount the water control part in the water passing channel.

[0012] According to some embodiments of the present application, the mounting portion comprises a boss, and the mounting hole is arranged on the boss.

[0013] According to some embodiments of the present application, a second water passing hole is further arranged on the sidewall of the boss.

[0014] According to some embodiments of the present application, the water control member further comprises a supporting portion, and the film portion and the fixing buckle are connected through the supporting portion.

[0015] According to some embodiments of the present application, the included angle between the extension direction of the flow limiting ring and the plane perpendicular to the water inlet direction is 70°.

[0016] According to some embodiments of the present application, the Shore hardness of the film portion is 50HD-70HD.

[0017] According to some embodiments of the present application, when the flow limiting ring is deformed to be perpendicular to the water inlet direction, the water blocking area of the flow limiting ring is smaller than the water passing sectional area of the water passing channel.

[0018] According to some embodiments of the present application, a sealing ring is further arranged, and an annular groove is arranged on the peripheral wall of the shell, and the sealing ring is sleeved on the annular groove.

[0019] The second aspect embodiment of the present application provides a water outlet device, which comprises a flow passing channel and the flow limiting check device, and the flow limiting check device is arranged in the flow passing channel.

[0020] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0022] Figure 1 An exploded schematic view of the flow limiting check device provided by the embodiment of the present application is shown;

[0023] Figure 2 A structural schematic view of the flow limiting check device provided by the embodiment of the present application when not in water or in reverse water is shown;

[0024] Figure 3 A structural schematic view of the flow limiting check device provided by the embodiment of the present application when in forward water is shown;

[0025] Figure 4 A structural schematic view of the shell provided by the embodiment of the present application is shown;

[0026] Figure 5 A structure diagram of the water control piece is shown.

[0027] Reference signs:

[0028] 1000, flow limiting and reverse stopping device;

[0029] 100, housing; 110, water passing channel; 120, mounting portion; 121, mounting hole; 122, first water passing hole; 123, boss; 124, second water passing hole; 130, annular groove;

[0030] 200, water control piece; 210, film portion; 220, flow limiting ring; 230, fixing buckle; 240, supporting portion;

[0031] 300, sealing ring. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0033] Reference Figure 1 and Figure 2 In some specific embodiments of the present application, a flow limiting and reverse stopping device 1000 is provided, which can be installed in the flow passing channel of some water outlet device to control the water flow and the opening and closing of the channel, for example, can be installed in a shower, faucet and other shower equipment to control the water inlet and outlet during the shower process, and can also be installed in a right angle valve and other water control equipment to control the water inlet and outlet of the water path controlled by the right angle valve. Wherein, the annular groove 130 can be provided on the outer peripheral wall of the housing 100 of the flow limiting and reverse stopping device 1000, and the O-shaped sealing ring 300 can be sleeved therein, when the flow limiting and reverse stopping device 1000 is installed in the flow passing channel of the water outlet device, the sealing ring 300 can abut against the inner wall of the flow passing channel of the water outlet device to realize sealing, to avoid water flow between the outer wall of the housing 100 and the inner wall of the flow passing channel, to cause water leakage phenomenon.

[0034] Specifically, the flow limiting and reverse stopping device 1000 comprises a housing 100 and a water control piece 200, wherein the housing 100 is provided with a water passing channel 110 for water flow, and the water control piece 200 is arranged in the water passing channel 110 to control the water flow and the opening and closing of the flow passage.

[0035] The water control piece 200 comprises a film part 210 and a flow limiting ring 220 extending from the film part 210 towards the water inlet direction, and the film part 210 and the flow limiting ring 220 are both deformable, for example, the film part 210 and the flow limiting ring 220 are both made of silica gel or rubber (NBR), so that the film part 210 and the flow limiting ring 220 can be elastically deformed.

[0036] It can be understood that the film part 210 extends the flow limiting ring 220 to be roughly in a bowl shape, the flow limiting ring 220 is the peripheral wall thereof, and the film part 210 is the bottom wall thereof, when the water flow enters the bowl, the water pressure of the water flow will apply a force to the peripheral wall (i.e. the flow limiting ring 220) of the bowl, so that the peripheral wall is expanded and deformed outward.

[0037] Reference Figure 2 and Figure 3 When the water flow flows into the water passage 110 of the flow limiting check device 1000 along the water inlet direction (the water flow is schematically shown by the arrowed dashed line), the water flow will first impact the flow limiting ring 220 to deform the flow limiting ring 220, after the flow limiting ring 220 is impacted and opened by the water flow, the water blocking area of the flow limiting ring 220 is increased, the water passage area of the water passage 110 is blocked, so that the water passage cross-sectional area of the water passage 110 is reduced, and the greater the water pressure, the greater the impact force, the flow limiting ring 220 is opened more fully, the water blocking area is further increased, and the water passage cross-sectional area of the water passage 110 is further reduced, so that the flow limiting check device 1000 can limit the flow of water at different water pressures, and ensure the stability of the water flow under different water pressures.

[0038] After the water flow flows through the flow limiting ring 220, the water flow will impact the film part 210 to deform the film part 210 to flow out between the film part 210 and the inner wall of the water passage 110.

[0039] When the water flow flows into the water passage 110 in the opposite direction of the water inlet direction, the water flow will first impact the film part 210 to deform the film part 210, at this time, the skirt of the film part 210 will abut against the inner wall of the water passage 110, so as to close the water passage 110, and prevent some domestic sewage and the like from flowing in the opposite direction and polluting the water source.

[0040] According to the flow limiting check device 1000 provided by the embodiment of the present application, the flow limiting and check functions of the water passage can be realized simultaneously by only one water control piece 200, without the assembly of multiple different parts, so that the structure is simple and the assembly is convenient.

[0041] Reference Figure 2 , Figure 4 and Figure 5In some embodiments of the utility model, installation portion 120 is arranged in water passage 110, installation hole 121 and first water passage hole 122 are arranged on installation portion 120, and one side of water control piece 200 is provided with fixed buckle 230, fixed buckle 230 can be buckled into installation hole 121, so that water control piece 200 can be fixedly installed in water passage 110, and first water passage hole 122 is arranged to ensure that the water flow in water passage 110 can flow, avoiding that water passage 110 is blocked by installation portion 120.

[0042] It can be understood that the setting position of fixed buckle 230 can be different, for example, it can be arranged on the side of water control piece 200 close to the water inlet direction, that is, on the side of flow limiting ring 220, or on the side of membrane portion 210, as long as it can be fixedly installed.

[0043] Reference Figure 2 And Figure 4 In some embodiments of the utility model, boss 123 is arranged on installation portion 120, and installation hole 121 is arranged on boss 123.

[0044] It can be understood that when fixed buckle 230 is arranged on the side of flow limiting ring 220, the protruding direction of boss 123 is close to the water outlet direction, which can avoid that flow limiting ring 220 directly abuts and covers installation portion 120, thereby affecting the water flow, and can also avoid that the friction between flow limiting ring 220 and installation portion 120 affects flow limiting ring 220 and causes insufficient deformation. When fixed buckle 230 is arranged on the side of membrane portion 210, the protruding direction of boss 123 is close to the water inlet direction, thereby providing deformation space for membrane portion 210, avoiding that membrane portion 210 directly covers installation portion 120 and first water passage hole 122 on it in the state without water inlet, so that membrane portion 210 cannot deform to expose water passage 110 when water inlet, affecting the smooth passing of water flow.

[0045] Reference Figure 2 And Figure 4 In some specific embodiments of the utility model, second water passage hole 124 is further arranged on the side wall of boss 123, thereby further increasing the water passage area of installation portion 120 and ensuring the water passage flow.

[0046] It can be understood that first water passage hole 122 and second water passage hole 124 are arranged with a plurality of holes. Further, the number of first water passage hole 122 and second water passage hole 124 is the same, and they are one-to-one corresponding and mutually connected.

[0047] Reference Figure 2 And Figure 5In some embodiments of the utility model, the water control piece 200 further comprises a support part 240, and the film part 210 and the fixing buckle 230 are connected through the support part 240.

[0048] By arranging the support part 240, the film part 210 has more sufficient deformation space, and interference between the film part 210 and the boss 123 is avoided when the film part 210 starts to deform, so that the deformation limit of the film part 210 is not affected.

[0049] Reference Figure 5 In some embodiments of the utility model, the included angle α between the extension direction of the flow limiting ring 220 and the plane perpendicular to the water inlet direction is 70°. If the above-mentioned included angle is too small, the flow limiting ring 220 cannot be deformed smoothly or the deformation is insufficient when water is inletted, and the flow limiting effect is not obvious, and if the above-mentioned included angle is too large, the flow limiting ring 220 is prone to large deformation even under low pressure, so that the water outlet flow is affected, and under high pressure, the flow limiting ring 220 is prone to excessive deformation and even overturning and being attached to one side of the film part 210, so that the flow limiting function is lost.

[0050] In some embodiments of the utility model, the Shore hardness of the film part 210 is set to 50HD-70HD. When the Shore hardness of the film part 210 is higher than 70HD, low pressure water inlet cannot make the flow limiting ring 220 deform, and when the Shore hardness of the film part 210 is lower than 50HD, the film part 210 is too soft, and even under low pressure water inlet, the film part 210 is also prone to large deformation, so that the water outlet flow is affected, and under high pressure, the flow limiting ring 220 is prone to excessive deformation and even overturning and being attached to one side of the film part 210, so that the flow limiting function is lost.

[0051] In some embodiments of the utility model, when the flow limiting ring 220 deforms to be perpendicular to the water inlet direction, the water blocking area of the flow limiting ring 220 is smaller than the water passing cross-sectional area of the water passing channel 110.

[0052] It can be understood that when the flow limiting ring 220 receives a water flow impact with a higher pressure, the deformation amount is larger, and when the flow limiting ring 220 deforms to be perpendicular to the water inlet direction, the water blocking area of the flow limiting ring 220 reaches the maximum, at this time, the water blocking area of the flow limiting ring 220 is also smaller than the water passing cross-sectional area of the water passing channel 110, so that no matter how high the pressure is, the water passing channel 110 cannot be closed and blocked to stop water outlet.

[0053] In the description of the utility model, it is understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0054] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0055] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0056] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0057] In the description of the specification, the description referring to the terms "some embodiments", and the like, means that the particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above- described terms in various places in the specification are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0058] Although embodiments of the present disclosure have been shown and described, it would be appreciated by those skilled in the art that changes, modifications, alternatives, and variations to these embodiments could be made without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A flow limiting check device, characterized in that, The application relates to a water flow control device. The water flow control device comprises a shell, a water passage arranged in the shell, and a water flow control element arranged in the water passage. When water flows into the water passage along a water inflow direction, the water flow control element is deformed to change the water passage cross-sectional area. When water flows into the water passage along a direction opposite to the water inflow direction, the water flow control element is deformed to close the water passage. The water passage is provided with a mounting portion, and the mounting portion is provided with a mounting hole and a first water passage hole.

2. The flow limiting check device of claim 1, wherein The water flow control element is provided with a fixing buckle, and the fixing buckle is buckled in the mounting hole to mount the water flow control element in the water passage. The mounting portion comprises a boss, and the mounting hole is arranged on the boss.

3. The flow limiting check device of claim 2, wherein, The boss is further provided with a second water passage hole on a side wall.

4. The flow limiting check device of claim 3, wherein The water flow control element further comprises a supporting portion, and the water flow control element and the fixing buckle are connected through the supporting portion.

5. A flow restricting check device according to claim 3 or 4, characterised in that, The included angle between the extension direction of the water flow control element and a plane perpendicular to the water inflow direction is 70 degrees.

6. The flow limiting check device of claim 1, wherein The Shore hardness of the water flow control element is 50HD-70HD.

7. The flow limiting check device of claim 1, wherein When the water flow control element is deformed to be perpendicular to the water inflow direction, the water blocking area of the water flow control element is smaller than the water passage cross-sectional area.

8. The flow limiting check device of claim 1, wherein The shell is further provided with an annular groove on a peripheral wall, and a sealing ring is sleeved on the annular groove.

9. The flow limiting check device of claim 1, wherein, The water flow control device comprises a water passage and the water flow control element as claimed in any one of claims 1-9, and the water flow control element is arranged in the water passage.

10. A water outlet device characterized by comprising: ​

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