Water outlet device

Abstract

The utility model discloses a water outlet device which comprises a Venturi channel, an oscillation cavity and a water outlet channel. The venturi channel is configured to form a negative pressure area in the venturi channel when water is introduced, so that external air is sucked in to be mixed with the liquid; the oscillation cavity is provided with a water inlet and a water outlet, the oscillation cavity is communicated with the Venturi channel through the water inlet, the oscillation cavity is communicated with the water outlet channel through the water outlet, and the water inlet is opposite to the cavity wall of the oscillation cavity; the whole structure is simple, pressurized particle water types can be generated under the low-flow working condition, the water spraying strength can be guaranteed, and the water saving effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to faucet technical field, in particular to a water outlet device. BACKGROUND

[0002] Most of the existing ordinary basin faucet and hand washing faucet flow is 6L / min, the first level water efficiency faucet flow is all 3L / min to 4L / min. For some areas or water environment, the water pressure is low, the water supply is less, leading to the weak water intensity of the faucet, which is difficult to meet the user's use demand. SUMMARY

[0003] The utility model discloses at least one of the above technical problems in the related art is solved to some extent. To this end, the utility model provides a water outlet device.

[0004] To achieve the above-mentioned purposes, the technical scheme of the utility model is as follows:

[0005] According to the first aspect embodiment of the utility model's water outlet device: including Venturi channel, oscillation cavity and water outlet channel that communicate in turn, the Venturi channel is configured as the negative pressure area is formed in its inside when water is passed through to mix with liquid with the outside air is sucked in, the oscillation cavity has the water inlet and the water outlet, the oscillation cavity is communicated with the Venturi channel through the water inlet, the oscillation cavity is communicated with the water outlet channel through the water outlet, the water inlet is opposite with at least one part cavity wall of the oscillation cavity.

[0006] According to the water outlet device of the utility model embodiment, at least has the following beneficial effects: simple overall structure can produce the pressurized granular water type under the low flow condition, can guarantee the water spray intensity, reaches the water saving effect.

[0007] According to some embodiments of the utility model, a plurality of first through holes are formed on the side wall of the oscillation cavity, and each first through hole constitutes the water outlet.

[0008] According to some embodiments of the utility model, the water inlet direction of the water inlet and the water outlet direction of the water outlet are not parallel to each other.

[0009] According to some embodiments of the utility model, the water outlet is arranged on the cavity wall opposite to the water inlet, and the water outlet and the water inlet are axially staggered.

[0010] According to some embodiments of the utility model, the water outlet channel includes a rectifier cavity and a plurality of water spray holes, the rectifier cavity is communicated between the water outlet and each water spray hole, the total water passage cross-sectional area of the rectifier cavity is greater than the total water passage cross-sectional area of the water outlet, and the total water passage cross-sectional area of each water spray hole is less than the water passage cross-sectional area of the water outlet.

[0011] According to some embodiments of the present application, the Venturi channel comprises a water inlet section, the negative pressure area, a throat section and an air suction flow channel, the throat section is communicated between the water inlet section and the negative pressure area, the water passing section area of the throat section is smaller than the minimum water passing section area of the water inlet section, the water passing section area of the throat section is smaller than the minimum water passing section area of the negative pressure area, the negative pressure area is communicated to the external environment through the air suction flow channel, and the negative pressure area is communicated with the water inlet.

[0012] According to some embodiments of the present application, the maximum diameter size of the air suction flow channel is A, the axial length size of the negative pressure area is B, and the diameter size of the water inlet is C, which satisfies: 2A≤B≤3C.

[0013] According to some embodiments of the present application, the water passing section area of the water inlet is smaller than the minimum water passing section area of the negative pressure area, and the water passing section area of the water inlet is larger than the water passing section area of the throat section.

[0014] According to some embodiments of the present application, the throat section is provided with one or more second through holes, and the projection of the second through hole in the axial direction is located in the opening range of the water inlet.

[0015] According to some embodiments of the present application, the water passing section area of the throat section is greater than or equal to the maximum air inlet section area of the air suction flow channel.

[0016] According to some embodiments of the present application, the Venturi channel, the oscillation cavity and the water outlet channel are integrally formed on the same pipe body.

[0017] According to some embodiments of the present application, the Venturi channel is formed on the first pipe section, the oscillation cavity and the water outlet channel are formed on the second pipe section, the first pipe section and the second pipe section are connected through the connecting pipe, and the negative pressure area and the oscillation cavity are communicated through the connecting pipe.

[0018] 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

[0019] 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, taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 is one of the structure schematic diagram of the water outlet device;

[0021] Figure 2 is Figure 1 the fluid flow direction schematic diagram when working;

[0022] Figure 3 is Figure 1 another perspective view of the schematic diagram of the water outlet device;

[0023] Figure 4 is Figure 1 an A-direction sectional view of the water outlet device;

[0024] Figure 5 is Figure 1 a use state schematic diagram of the water outlet device;

[0025] Figure 6 is another structural schematic diagram of the water outlet device.

[0026] Reference signs: Venturi channel 100; Negative pressure area 110; Water inlet section 120; Throat section 130; Second through hole 131; Air suction flow channel 140; Shocking cavity 200; Water inlet 210; Water outlet 220; First through hole 221; Water outlet channel 300; Flow regulating cavity 310; Water jet hole 320; First pipe section 410; Second pipe section 420; Connecting pipe 430. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, examples of which 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.

[0028] The present application relates to a water outlet device, as shown in Figure 5 The water outlet device can be applied to products such as faucets, shower heads, and spray guns. The water outlet device can be applied to 1L / min to 1.8L / min low-flow water conditions, which mainly forms pulse pressurized granular water type through air suction pressurization, and meets the flushing intensity under low-flow conditions.

[0029] As Figure 1 and Figure 3As shown, the water outlet device comprises a Venturi channel 100, a shock chamber 200 and a water outlet channel 300. The Venturi channel 100, the shock chamber 200 and the water outlet channel 300 are sequentially communicated, and water flows along the Venturi channel 100, the shock chamber 200 and the water outlet channel 300. When the Venturi channel 100 is in water communication, a negative pressure area 110 is formed inside the Venturi channel 100 according to the Venturi effect. The negative pressure effect of the negative pressure area 110 sucks air from the external environment into the negative pressure area 110, forming a fluid in which water and air are preliminarily mixed. The shock chamber 200 has a water inlet 210 and a water outlet 220. The shock chamber 200 is in communication with the Venturi channel 100 through the water inlet 210, and the fluid is sprayed from the Venturi channel 100 into the shock chamber 200 through the water inlet 210. The shock chamber 200 is in communication with the water outlet channel 300 through the water outlet 220. The water inlet 210 is opposite to at least part of the chamber wall of the shock chamber 200, that is, the fluid sprayed from the water inlet 210 into the shock chamber 200 will impact on the chamber wall opposite to the water inlet position. The water outlet 220 can be located on the chamber wall opposite to the water inlet 210, but the water outlet 220 and the water inlet 210 are axially staggered, so that the water sprayed from the water inlet 210 into the shock chamber 200 will not directly impact on the water outlet 220. Alternatively, the water outlet 220 can be opened on the chamber wall adjacent to the chamber wall where the water inlet 210 is located. The water inlet direction of the water inlet 210 and the water outlet direction of the water outlet 220 are not parallel to each other, for example Figure 1 As shown in the drawings, the water inlet direction of the water inlet 210 and the water outlet direction of the water outlet 220 have an angle, which can be an acute angle, a right angle or an obtuse angle.

[0030] In actual use, for example Figure 2As shown, external water (such as tap water) enters the Venturi channel 100, and according to the Venturi effect, a negative pressure is formed in the negative pressure area 110 to suck in external air, the air mixes with the tap water to form pressurized fluid, and the fluid is sprayed into the oscillation cavity 200 through the water inlet 210. The fluid entering the oscillation cavity 200 initially impacts the cavity wall of the oscillation cavity 200, and after being blocked by the cavity wall of the oscillation cavity 200, the water flows back in the direction of the water inlet 210, and part of the fluid is first discharged from the water outlet 220 to the water outlet channel 300. As the fluid in the oscillation cavity 200 increases until it is full, a large amount of air in the oscillation cavity 200 cannot be discharged, the pressure in the oscillation cavity 200 increases, and the fluid is accelerated to be discharged from the water outlet 220 to the water outlet channel 300. At this time, due to the increase in the pressure of the oscillation cavity 200, the subsequent fluid entering the oscillation cavity 200 from the water inlet 210 is blocked, the fluid in the negative pressure area 110 accumulates due to the untimely discharge, the amount of external air sucked gradually decreases, and the amount of water sprayed into the oscillation cavity 200 decreases. The water outlet channel 300 discharges water, and the pressure in the oscillation cavity 200 gradually decreases, so that the water outlet channel 300 appears a temporary decrease in flow or water stop phenomenon. When the pressure in the oscillation cavity 200 decreases to a certain value, the resistance to the negative pressure area 110 gradually decreases, the amount of air gradually increases, the fluid gradually fills the oscillation area again, and the pressure in the oscillation area gradually increases, thereby increasing the water discharge amount and speed of the water outlet channel 300. In this way, the air intake amount of the negative pressure area 110 gradually decreases and then gradually increases, the pressure in the oscillation area gradually decreases and then gradually increases, and the water outlet flow also gradually decreases and then gradually increases, thereby causing intermittent water discharge and realizing the pulse particle water type. Under the low-flow working condition, the water spraying intensity can be ensured, and the water-saving effect can be achieved.

[0031] The water outlet 220 can be an opening formed in the cavity wall of the oscillation cavity 200. In the embodiment, the water outlet 220 is composed of a plurality of first through holes 221, and the plurality of first through holes 221 are circular holes formed in the side wall of the oscillation cavity 200. The diameter of each first through hole 221 can be controlled in the range of 1 mm to 1.2 mm. The fluid in the oscillation cavity 200 is divided into a plurality of first through holes 221 and then enters the water outlet channel 300, and each first through hole 221 has a certain flow regulating effect on the fluid.

[0032] In some specific embodiments of the utility model, such as Figure 1 and Figure 3As shown, the water outlet passage 300 includes a rectifying cavity 310 and a plurality of water outlet holes 320. The rectifying cavity 310 is communicated between the water outlet 220 and each water outlet hole 320. The rectifying cavity 310 can be provided as a cavity with equal diameters everywhere, or can be provided as a tapered or other shape cavity with unequal diameters. The total water passage cross-sectional area of the rectifying cavity 310 can be the maximum water passage cross-sectional area of the rectifying cavity 310. The total water passage cross-sectional area of the rectifying cavity 310 is greater than the total water passage cross-sectional area of the water outlet 220, that is, the water passage cross-sectional area of the rectifying cavity 310 is greater than the total water passage cross-sectional area of each first through hole 221. The total water passage cross-sectional area of each water outlet hole 320 is less than the water passage cross-sectional area of the water outlet 220. Water enters the rectifying cavity 310 through each first through hole 221 and is then distributed to each water outlet hole 320 for spraying outwards. The rectifying cavity 310 is used to rectify the water, so that the fluid can be relatively uniformly distributed to each water outlet hole 320 for spraying outwards, and the particle water sprayed out of each water outlet hole 320 is relatively synchronized.

[0033] In some embodiments of the present application, as shown in Figure 1 and Figure 3 As shown, the water outlet passage 300 includes a rectifying cavity 310 and a plurality of water outlet holes 320. The rectifying cavity 310 is communicated between the water outlet 220 and each water outlet hole 320. The rectifying cavity 310 can be provided as a cavity with equal diameters everywhere, or can be provided as a tapered or other shape cavity with unequal diameters. The total water passage cross-sectional area of the rectifying cavity 310 can be the maximum water passage cross-sectional area of the rectifying cavity 310. The total water passage cross-sectional area of the rectifying cavity 310 is greater than the total water passage cross-sectional area of the water outlet 220, that is, the water passage cross-sectional area of the rectifying cavity 310 is greater than the total water passage cross-sectional area of each first through hole 221. The total water passage cross-sectional area of each water outlet hole 320 is less than the water passage cross-sectional area of the water outlet 220. Water enters the rectifying cavity 310 through each first through hole 221 and is then distributed to each water outlet hole 320 for spraying outwards. The rectifying cavity 310 is used to rectify the water, so that the fluid can be relatively uniformly distributed to each water outlet hole 320 for spraying outwards, and the particle water sprayed out of each water outlet hole 320 is relatively synchronized.

[0034] As shown, the water outlet passage 300 includes a rectifying cavity 310 and a plurality of water outlet holes 320. The rectifying cavity 310 is communicated between the water outlet 220 and each water outlet hole 320. The rectifying cavity 310 can be provided as a cavity with equal diameters everywhere, or can be provided as a tapered or other shape cavity with unequal diameters. The total water passage cross-sectional area of the rectifying cavity 310 can be the maximum water passage cross-sectional area of the rectifying cavity 310. The total water passage cross-sectional area of the rectifying cavity 310 is greater than the total water passage cross-sectional area of the water outlet 220, that is, the water passage cross-sectional area of the rectifying cavity 310 is greater than the total water passage cross-sectional area of each first through hole 221. The total water passage cross-sectional area of each water outlet hole 320 is less than the water passage cross-sectional area of the water outlet 220. Water enters the rectifying cavity 310 through each first through hole 221 and is then distributed to each water outlet hole 320 for spraying outwards. The rectifying cavity 310 is used to rectify the water, so that the fluid can be relatively uniformly distributed to each water outlet hole 320 for spraying outwards, and the particle water sprayed out of each water outlet hole 320 is relatively synchronized. 2Up to 3.2mm 2 The throat section 130 is provided with one or more second through holes 131. The water inlet section 120 is connected to the negative pressure area 110 through the second through holes 131. Figure 4 As shown, the axial projection of the second through hole 131 is located within the opening range of the water inlet 210. After most of the water enters the negative pressure zone 110 from the throat section 130, it can be sprayed directly to the water inlet 210 along the axial direction to reduce fluid obstruction. Among them, the intake air duct 140 can be set as a channel structure with equal diameters at all locations, or it can be a channel structure with unequal diameters at different locations, such as a cone. The throat section 130 is set to have equal diameters at all locations. The water-passing cross-sectional area of ​​the throat section 130 is greater than or equal to the maximum air intake cross-sectional area of ​​the intake air duct 140. The diameter of the intake air duct 140 can range from 1 mm to 1.5 mm. If the maximum air intake cross-sectional area of ​​the intake air duct 140 is greater than the water-passing cross-sectional area of ​​the throat section 130, the intake air duct 140 will experience water particle spraying, or even water leakage, making it impossible to inhale.

[0035] Preferably, the maximum diameter of the suction flow channel 140 is A, the axial length of the negative pressure zone 110 is B, and the diameter of the water inlet 210 is C, which satisfies: 2A≤B≤3C.

[0036] The Venturi channel 100, the oscillation chamber 200 and the water outlet channel 300 can be formed in a variety of ways, for example, 1. The Venturi channel 100, the oscillation chamber 200 and the water outlet channel 300 are integrally formed on the same tube body for easy installation and use. Figure 6 As shown, the Venturi channel 100 is formed on the first pipe section 410, and the oscillation chamber 200 and the water outlet channel 300 are formed on the second pipe section 420. The first pipe section 410 and the second pipe section 420 are connected by a connecting pipe 430, which can be a pipe such as a hose. The negative pressure area 110 and the oscillation chamber 200 are connected by the connecting pipe 430. This makes it suitable for different installation sites. At the same time, different first pipe sections 410 and second pipe sections 420 can be replaced to adapt to different faucets and other products for use. It is not easy to clog, is easy to use, and has a low failure rate.

[0037] Throughout this specification, references to "some specific embodiments" and the like indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A water outlet device, characterized by: The Venturi channel (100), the oscillation cavity (200) and the water outlet channel (300) are sequentially communicated; the Venturi channel (100) is configured to form a negative pressure area (110) inside when water flows through it to suck external air into the liquid; the oscillation cavity (200) has a water inlet (210) and a water outlet (220), the oscillation cavity (200) is communicated with the Venturi channel (100) through the water inlet (210), the oscillation cavity (200) is communicated with the water outlet channel (300) through the water outlet (220), and the water inlet (210) is opposite to at least part of the cavity wall of the oscillation cavity (200).

2. The water outlet device according to claim 1, characterized in that: A plurality of first through holes (221) are formed in the side wall of the oscillation cavity (200), and each first through hole (221) constitutes the water outlet (220).

3. The water outlet device according to claim 1 or 2, characterized in that: The water inlet direction of the water inlet (210) and the water outlet direction of the water outlet (220) are not parallel to each other.

4. The water outlet device according to claim 1 or 2, characterized in that: The water outlet (220) is arranged on the cavity wall opposite to the water inlet (210), and the water outlet (220) and the water inlet (210) are axially offset from each other.

5. The water outlet device according to claim 1 or 2, characterized in that: The water outlet channel (300) comprises a flow regulation cavity (310) and a plurality of water injection holes (320), the flow regulation cavity (310) is communicated between the water outlet (220) and each water injection hole (320), the total water passage cross-sectional area of the flow regulation cavity (310) is greater than the total water passage cross-sectional area of the water outlet (220), and the sum of the water passage cross-sectional areas of each water injection hole (320) is less than the water passage cross-sectional area of the water outlet (220).

6. The water outlet device according to claim 1, characterized in that: The Venturi channel (100) comprises a water inlet section (120), the negative pressure area (110), a throat section (130) and an air suction flow channel (140), the throat section (130) is communicated between the water inlet section (120) and the negative pressure area (110), the water passage cross-sectional area of the throat section (130) is smaller than the minimum water passage cross-sectional area of the water inlet section (120), the water passage cross-sectional area of the throat section (130) is smaller than the minimum water passage cross-sectional area of the negative pressure area (110), the negative pressure area (110) is communicated to the external environment through the air suction flow channel (140), and the negative pressure area (110) is communicated with the water inlet (210).

7. The water outlet device according to claim 6, characterized in that: The maximum diameter of the air suction flow channel (140) is A, the axial length of the negative pressure area (110) is B, and the diameter of the water inlet (210) is C, which satisfy 2A≤B≤3C.

8. The water outlet device according to claim 6, characterized in that: The water passage cross-sectional area of the water inlet (210) is smaller than the minimum water passage cross-sectional area of the negative pressure area (110), and the water passage cross-sectional area of the water inlet (210) is greater than the water passage cross-sectional area of the throat section (130).

9. The water outlet device according to claim 8, characterized in that: The throat section (130) is provided with one or more second through holes (131), and the projection of the second through hole (131) in the axial direction is located within the opening range of the water inlet (210).

10. The water outlet device according to claim 6, characterized in that: The water passage cross-sectional area of the throat section (130) is greater than or equal to the maximum air inlet cross-sectional area of the air suction flow channel (140).

11. The water outlet device according to claim 1, characterized in that: The Venturi channel (100), the oscillation cavity (200) and the water outlet channel (300) are integrally formed on the same pipe body.

12. The water outlet device according to claim 1, characterized in that: The Venturi channel (100) is formed on a first pipe section (410), the oscillation cavity (200) and the water outlet channel (300) are formed on a second pipe section (420), the first pipe section (410) and the second pipe section (420) are connected through a connecting pipe (430), and the negative pressure area (110) and the oscillation cavity (200) are communicated through the connecting pipe (430).

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