Liquid outlet device

Abstract

The utility model belongs to the technical field of kitchen and bath equipment, and discloses a liquid outlet device which comprises a liquid outlet body and an air suction assembly, the liquid outlet body is provided with a liquid outlet channel, the liquid outlet channel is provided with a liquid inlet and a liquid outlet, and the liquid inlet can be connected with a liquid supply piece so that liquid can be discharged from the liquid outlet; the liquid outlet body is further provided with an air inlet channel, the air inlet channel is provided with an air inlet and an air outlet, the air outlet is communicated with the liquid outlet channel, and the air inlet is communicated with the external space; the air suction assembly comprises an air suction film and a gland, a notch is formed in the air suction film, air conveniently enters the liquid outlet channel to be mixed with water, the gland fixes the air suction film to the air inlet, meanwhile, the gland can enable the notch to be unidirectionally closed from the air outlet of the air inlet channel to the air inlet, and the overflow and return phenomenon at the air inlet position can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of kitchen and bathroom equipment technology, and in particular to a liquid dispensing device. Background Technology

[0002] As people's demands for shower comfort continue to increase, air intake showerheads are a type of showerhead that increases the amount of air entering the water while it is being sprayed out. This allows the water to contain a certain amount of gas, which not only saves water but also makes the water flow feel softer on the body and reduces the pain caused by direct water spray.

[0003] Existing air-suction shower heads typically have the air inlet located on the ball head. When the water flow is obstructed, water can easily flow out of the air inlet, causing backflow. Utility Model Content

[0004] The purpose of this invention is to provide a liquid discharge device that can prevent overflow at the air inlet.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Liquid dispensing device, comprising:

[0007] The liquid outlet is provided with a liquid outlet channel, which has a liquid inlet and a liquid outlet. The liquid inlet can be connected to a liquid supply device so that liquid can be discharged from the liquid outlet. The liquid outlet is also provided with an air inlet channel, which has an air inlet and an air outlet. The air outlet is connected to the liquid outlet channel, and the air inlet is connected to the external space.

[0008] An anti-backflow assembly includes an air-absorbing membrane and a pressure cap. The air-absorbing membrane has slits, and the pressure cap secures the air-absorbing membrane to the air inlet.

[0009] The pressure cap enables the cut to close unidirectionally from the air outlet to the air inlet.

[0010] In some embodiments, the suction membrane has a deformable portion that is flexible, the cut is located on the deformable portion, the pressure cap has a top abutment and a flow hole, and the cut is closed when the deformable portion is pressed against the top abutment; the cut is opened to connect the flow hole when the deformable portion is away from the top abutment.

[0011] In some embodiments, the intake membrane has a retaining ring, the deformable portion is disposed at one end of the retaining ring, the pressure cap is provided with a pressure cap ring, the retaining ring is sleeved on the pressure cap ring so that the abutment abuts against the deformable portion, and the flow hole is provided between the abutment and the inner wall of the pressure cap ring.

[0012] In some embodiments, the deformable portion protrudes away from the fixing ring.

[0013] In some embodiments, the cut is a straight line or a cross shape.

[0014] In some embodiments, the cap is detachably attached to the liquid outlet.

[0015] In some embodiments, multiple liquid outlet channels are provided, each liquid outlet channel corresponds to an air inlet channel, and each air inlet channel is provided with an air intake component.

[0016] In some embodiments, the liquid outlet channel from the liquid inlet to the liquid outlet includes a small diameter section and a large diameter section connected in sequence, and the air outlet is connected at the junction of the small diameter section and the large diameter section.

[0017] In some embodiments, the liquid dispensing device further includes a housing disposed on the liquid being dispensed, the housing and the liquid dispensing forming a receiving cavity, and the air inlet located within the receiving cavity.

[0018] In some embodiments, the liquid dispensing device further includes a liquid dispensing cover, which is provided with a plurality of liquid dispensing holes. The liquid dispensing cover is disposed on the liquid being dispensed, and the liquid dispensing cover and the liquid being dispensed form a liquid dispensing cavity. The liquid dispensing holes and the liquid outlet are both connected to the liquid dispensing cavity.

[0019] The beneficial effects of this utility model are:

[0020] When the liquid supply unit supplies liquid to the liquid outlet channel, the liquid flows within the liquid outlet channel. Since the air outlet of the air inlet channel is connected to the liquid outlet channel, the liquid flow reduces the pressure at the air outlet of the air inlet channel. Gas enters through the cut in the suction membrane at the air inlet of the air inlet channel, thus containing gas in the liquid. If the liquid outlet of the liquid outlet channel becomes blocked, and the liquid accumulates on the suction membrane in the air inlet channel, the pressure cap can close the cut in one direction from the air outlet of the air inlet channel to the air inlet of the air inlet channel. The suction membrane prevents the liquid from passing through, thereby reducing the backflow phenomenon that occurs at the air inlet channel. Attached Figure Description

[0021] Figure 1 This is an exploded view of the liquid dispensing device of this utility model;

[0022] Figure 2 This is an exploded view of the air intake component in the liquid discharge device of this utility model;

[0023] Figure 3 This is a schematic diagram of the pressure cap in the liquid dispensing device of this utility model;

[0024] Figure 4This is a schematic diagram of the suction membrane in the liquid dispensing device of this utility model;

[0025] Figure 5 This is a side sectional view of the liquid discharge device display suction assembly of this utility model;

[0026] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 This is a side sectional view of the liquid outlet device of this utility model, showing the liquid outlet channel.

[0028] Figure 8 yes Figure 7 Enlarged view at point B in the middle;

[0029] Figure 9 This is a top sectional view of the liquid outlet device of this utility model, showing the liquid outlet channel and the air inlet channel.

[0030] In the picture:

[0031] 1. Discharge liquid;

[0032] 2. Liquid outlet channel; 21. Small diameter section; 22. Large diameter section; 23. Liquid inlet; 24. Liquid outlet;

[0033] 3. Intake passage; 31. Connecting section; 32. Buffer section; 321. Second step; 33. Intake port; 34. Exit port;

[0034] 4. Suction assembly; 41. Suction membrane; 411. Deformation part; 412. Cutout; 413. Retaining ring; 414. First pressure ring; 42. Pressure cap; 421. Top; 422. Flow hole; 423. Pressure cap ring; 424. Second pressure ring; 425. Tightening handle; 43. Retaining collar; 431. First step; 432. Third pressure ring;

[0035] 5. Shell;

[0036] 6. Liquid outlet cover; 61. Liquid outlet hole;

[0037] 7. Limit block;

[0038] 8. Liquid inlet pipe;

[0039] 9. Ball head. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] like Figures 1 to 9 As shown, this application provides a liquid dispensing device, which includes a liquid dispensing 1 and an air intake assembly 4. The liquid dispensing 1 is provided with a liquid dispensing channel 2, which has a liquid inlet 23 and a liquid outlet 24. The liquid inlet 23 of the liquid dispensing channel 2 can be connected to a liquid supply device so that liquid can be dispensed from the liquid outlet 24 of the liquid dispensing channel 2. The liquid dispensing 1 is also provided with an air intake channel 3, which has an air inlet 33 and an air outlet 34. The air outlet 34 of the air intake channel 3 is connected to the liquid dispensing channel 2, and the air inlet 33 of the air intake channel 3 is connected to the external space. The air intake assembly 4 includes an air intake membrane 41 and a pressure cap 42. The air intake membrane 41 is provided with a slit 412 to facilitate gas entering the liquid dispensing channel 2 and mixing with water. The pressure cap 42 fixes the air intake membrane 41 to the air inlet 33 of the air intake channel 3. The pressure cap 42 can close the slit 412 unidirectionally from the air outlet 34 of the air intake channel 3 to the air inlet 33 of the air intake channel 3.

[0045] When the liquid supply unit supplies liquid to the liquid outlet channel 2, the liquid flows in the liquid outlet channel 2. Since the air outlet 34 of the air inlet channel 3 is connected to the liquid outlet channel 2, the liquid flow will reduce the pressure at the air outlet 34 of the air inlet channel 3. Gas enters through the cut 412 of the suction membrane 41 of the air inlet 33 of the air inlet channel 3, thereby making the liquid contain gas. In this embodiment, the liquid is water, and the water and gas mix to form bubble water. If the liquid outlet 24 of the liquid outlet channel 2 becomes blocked and the liquid accumulates in the suction membrane 41 of the air inlet channel 3, the pressure cap 42 can close the cut 412 one-way from the air outlet 34 to the air inlet 33 of the air inlet channel 3. The suction membrane 41 prevents the liquid from passing through, thereby reducing the backflow phenomenon that occurs at the air inlet channel 3.

[0046] It should be noted that this liquid dispensing device can be used in bathroom and kitchen shower or rinsing equipment such as hand showers, or other water systems that require gas filling.

[0047] like Figure 1 As shown, in some embodiments, the liquid outlet 1 is flat, and the inlet 23 and outlet 24 of the liquid outlet channel 2 are located on opposite sides of the liquid outlet 1, that is, the inlet end and the outlet end are arranged on opposite sides to reduce installation interference. In order to facilitate the installation of the suction component 4 at the air inlet 33 of the air inlet channel 3, the air inlet channel 3 includes a buffer section 32 vertically arranged along the axial direction of the liquid outlet 1 and a horizontally arranged connecting section 31. The connecting section 31 connects the buffer section 32 and the liquid outlet channel 2. The opening of the buffer section 32 is the air inlet 33. The opening of the buffer section 32 and the liquid inlet 23 of the liquid outlet channel 2 are located on the same side. The suction component 4 is fixedly arranged at the opening of the buffer section 32, and the connecting section 31 is located below the suction component 4.

[0048] like Figure 2 and Figure 4 As shown, in some embodiments, the suction membrane 41 has a deformable portion 411, which is flexible and can deform under atmospheric force. A cut 412 is located on the deformable portion 411, and the cap 42 has a top abutting point 421 that abuts against the cut 412 of the deformable portion 411. When blockage occurs and liquid accumulates in the suction membrane 41 within the air intake channel 3, the liquid force acts on the deformable portion 411, causing it to abut against the top abutting point 421, keeping the cut 412 closed. When no blockage occurs and liquid flows through the liquid outlet channel 2, air is drawn into the liquid outlet channel 2 from the suction membrane 41. This atmospheric force acts on the deformable portion 411, causing it to move away from the top abutting point 421, thus deforming and opening the cut 412. Exemplarily, the deformable portion 411 can be made of a flexible material such as rubber or silicone.

[0049] Specifically, such as Figure 2 and Figure 4 As shown, the suction membrane 41 has a fixing ring 413 and a deformable part 411 is disposed at one end of the fixing ring 413. In the current embodiment, the deformable part 411 and the fixing ring 413 are integrally formed. The cap 42 includes a cap ring 423, a top abutment 421 disposed on the inner wall of the cap ring 423, and a fixing ring 413 sleeved on the cap ring 423 so that the top abutment 421 abuts against the deformable part 411. A flow hole 422 is provided between the top abutment 421 and the inner wall of the cap ring 423, so that gas can pass through the cap 42, flow to the suction membrane 41, and abut against the suction membrane 41, causing the suction membrane 41 to deform away from the top abutment 421, thereby opening the cut 412 and allowing gas to pass through the suction membrane 41. When liquid abuts against the suction membrane 41 from one side, the suction membrane 41 will not deform due to the abutment 421, so that the suction membrane 41 is tightly abutted against the top abutment 421, thus preventing the cut 412 from opening and the liquid from flowing out through the flow hole 422 through the suction membrane 41, thereby avoiding backflow.

[0050] like Figure 3 and Figure 4 As shown, for example, the cut 412 can be a straight cut or a cross cut. When a cross cut is used, the top 421 is also cross-shaped. When the cut 412 is a straight cut, the top 421 can be a straight cut or a cross cut. The specific form is not limited.

[0051] In the current embodiment, the cut 412 is a cross-shaped cut. Utilizing the cross-shaped cut air-suction membrane 41, when gas hits the air-suction membrane 41, the cut 412 opens, thereby increasing its size. This also reduces noise generation when gas passes through, achieving a noise reduction effect compared to the traditional fixed air inlet 33. Furthermore, the enlarged cut 412 allows air to enter even under low water pressure, preventing air intake failure due to low pressure and improving applicability. In some embodiments, multiple liquid outlet channels 2 are provided, each corresponding to an air inlet channel 3, thereby increasing water output efficiency. Each air inlet channel 3 is equipped with an air intake component 4. In the current embodiment, there are four liquid outlet channels 2, four air inlet channels 3, and four air intake components 4.

[0052] Meanwhile, with four liquid outlet channels 2 set up, as shown in the table below, the air suction membrane 41 with a cross-shaped cut in the current embodiment can increase the amount of air entering under the same pressure conditions, thereby further improving the water-saving capacity of the water outlet device.

[0053] pressure Other devices in the prior art This application Water-saving effect 0.1 MPa 5.8L / min 4.3L / min Water saving 26% 0.2 MPa 8.9L / min 6.4L / min Water saving 28% 0.3Mpa 11.3L / min 8.0L / min Water saving 29%

[0054] In some embodiments, the deformable portion 411 protrudes away from the fixing ring 413. Correspondingly, the end of the top 421 located on one side of the deformable portion 411 also protrudes. By adopting the protruding form, the cut 412 can be opened more easily; and it is also easier to close when subjected to force in the opposite direction, so that the deformable portion 411 is not easy to collapse.

[0055] like Figures 2 to 4 As shown, in some embodiments, in order to facilitate the fixation of the suction membrane 41, the suction assembly 4 further includes a fixing collar 43. The inner wall of the fixing collar 43 is provided with a first step 431, and the outer periphery of the end of the fixing collar 413 away from the deformation part 411 is provided with a first pressure ring 414. The first pressure ring 414 is also integrally formed with the fixing collar 413. Correspondingly, the outer periphery of the pressure cap ring 423 is also provided with a second pressure ring 424. The second pressure ring 424 abuts against the first step 431 inside the fixing collar 43 for fixation.

[0056] In order to fix the suction assembly 4 to the buffer section 32, a third pressure ring 432 is provided on the outer wall of the fixing collar 43, and a second step 321 is provided on the inner wall of the buffer section 32, so that the third pressure ring 432 can be placed in the buffer section 32 for limiting, and the second pressure ring 424 of the pressure cap 42 is connected to the liquid outlet 1 for fixing.

[0057] like Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments, for ease of maintenance, the second pressure ring 424 of the pressure cap 42 is detachably connected to the liquid outlet 1, thereby facilitating the removal of the pressure cap 42 and allowing the suction assembly 4 to be detached from the liquid outlet 1. In the current embodiment, two opposing limiting blocks 7 are provided on the liquid outlet 1. The limiting blocks 7 are arranged in an inverted L-shape. The first end of the limiting block 7 is connected to the liquid outlet 1, and the second end of the limiting block 7 is positioned above the opening end of the buffer section 32, thereby forming a clamping space between the second end of the limiting block 7 and the opening end of the buffer section 32. The second pressure ring 424 of the pressure cap 42 has opposing tangents. The distance between the two opposing tangents is less than the distance between the second ends of the two limiting blocks 7, and the distance between the two ends of the second pressure ring 424 perpendicular to the line connecting the two tangents is greater than the distance between the second ends of the two limiting blocks 7. This allows the second pressure ring 424 to rotate from the tangent side into the clamping space for positioning, thereby fixing the pressure cap 42. To facilitate tightening, the second pressure ring 424 is also provided with a tightening handle 425. In other embodiments, the pressure cap 42 can also be fixed to the liquid outlet 1 by various connection methods such as plug-in connection and bolt connection.

[0058] like Figure 7 and Figure 8As shown, in some embodiments, the liquid outlet channel 2 includes a small-diameter section 21 and a large-diameter section 22 connected sequentially from the liquid inlet 23 to the liquid outlet 24. That is, the size of the liquid outlet channel 2 gradually increases from small to large. The air outlet 34 of the air inlet channel 3 is connected at the junction of the small-diameter section 21 and the large-diameter section 22. According to the Venturi effect, when liquid passes through the liquid outlet channel 2, a negative pressure is generated at the junction of the small-diameter section 21 and the large-diameter section 22, thereby allowing gas to enter the liquid outlet channel 2 more easily. In some embodiments, the small-diameter section 21 is formed by an inward concavity in the channel wall of the liquid outlet channel 2.

[0059] like Figure 1 As shown, in some embodiments, the liquid outlet device further includes a liquid outlet cover 6, which is disposed on the liquid outlet 1. The liquid outlet cover 6 and the liquid outlet 1 form a liquid outlet cavity. The liquid outlet cover 6 is provided with a plurality of liquid outlet holes 61 to communicate with the liquid outlet cavity. The liquid outlet ports 24 of the liquid outlet channel 2 are all connected to the liquid outlet cavity, so that the water in the liquid outlet channel 2 first gathers into the liquid outlet cavity and then flows out from the liquid outlet holes 61, making the water outlet more uniform.

[0060] like Figure 9 As shown, in some embodiments, each liquid outlet channel 2 is provided with one inlet 23 and multiple outlets 24, thereby improving the efficiency and uniformity of liquid outlet. For convenient liquid inlet, an inlet pipe 8 is provided on the liquid outlet 1, and the inlets 23 of the liquid outlet channels 2 are all connected to the inlet pipe 8, thereby connecting to an external liquid supply device through the inlet pipe 8. In some embodiments, a ball head 9 is also provided at the end of the inlet pipe 8 away from the liquid outlet 1, thereby adjusting the rotation angle of the liquid outlet 1 through the ball head 9, facilitating the adjustment of the liquid outlet angle. A water-saving plate and a filter screen can also be provided inside the ball head 9, and a wear-resistant ring can also be provided outside the ball head 9, etc., which will not be described in detail here; the ball head 9 itself is a commonly used component in the prior art, and will not be described in detail here either.

[0061] like Figure 1 As shown, in some embodiments, the liquid outlet device further includes a housing 5, which is disposed on the liquid outlet 1. The housing 5 and the liquid outlet 1 form a receiving cavity. The receiving cavity and the liquid outlet cavity are located on opposite sides of the liquid outlet 1 and are not connected to each other. The air inlet 33 of the air inlet channel 3 is located inside the receiving cavity, thereby preventing the air intake component 4 and the flow hole 422 from being exposed and blocked by debris.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A liquid dispensing device, characterized in that, include: Liquid outlet (1) is provided with a liquid outlet channel (2), which has a liquid inlet (23) and a liquid outlet (24). The liquid inlet (23) can be connected to a liquid supply device so that liquid can be discharged from the liquid outlet (24). The liquid outlet (1) is also provided with an air inlet channel (3), which has an air inlet (33) and an air outlet (34). The air outlet (34) is connected to the liquid outlet channel (2), and the air inlet (33) is connected to the external space. The suction assembly (4) includes a suction membrane (41) and a pressure cap (42). The suction membrane (41) has a slit (412). The pressure cap (42) fixes the suction membrane (41) to the air inlet (33). The pressure cap (42) enables the slit (412) to be closed unidirectionally from the air outlet (34) of the air inlet channel (3) to the air inlet (33).

2. The liquid dispensing device according to claim 1, characterized in that, The air-absorbing membrane (41) has a deformable portion (411) which is flexible. The cut (412) is located on the deformable portion (411). The pressure cap (42) has a top (421) and a flow hole (422). When the deformable portion (411) is pressed against the top (421), the cut (412) is closed. When the deformable portion (411) is away from the top (421), the cut (412) opens to connect with the flow hole (422).

3. The liquid dispensing device according to claim 2, characterized in that, The suction membrane (41) has a fixing ring (413), the deformable part (411) is disposed at one end of the fixing ring (413), the pressure cap (42) is provided with a pressure cap ring (423), the fixing ring (413) is sleeved on the pressure cap ring (423) so that the abutment (421) abuts against the deformable part (411), and the flow hole (422) is provided between the abutment (421) and the inner wall of the pressure cap ring (423).

4. The liquid dispensing device according to claim 3, characterized in that, The deformable part (411) protrudes away from the fixed ring (413).

5. The liquid dispensing device according to claim 1, characterized in that, The cut (412) is either in the shape of a line or a cross.

6. The liquid dispensing device according to claim 1, characterized in that, The pressure cap (42) is detachably connected to the liquid outlet (1).

7. The liquid dispensing device according to claim 1, characterized in that, The liquid outlet channel (2) is provided in multiple ways, and each liquid outlet channel (2) is provided with an air inlet channel (3), and each air inlet channel (3) is provided with an air intake component (4).

8. The liquid dispensing device according to claim 1, characterized in that, The liquid outlet channel (2) from the liquid inlet (23) to the liquid outlet (24) includes a small diameter section (21) and a large diameter section (22) connected in sequence, and the air outlet (34) is connected at the junction of the small diameter section (21) and the large diameter section (22).

9. The liquid dispensing device according to any one of claims 1-8, characterized in that, The liquid outlet device also includes a housing (5), which is disposed on the liquid outlet (1). The housing (5) and the liquid outlet (1) form a receiving cavity, and the air inlet (33) is located inside the receiving cavity.

10. The liquid dispensing device according to any one of claims 1-8, characterized in that, The liquid outlet device further includes a liquid outlet cover (6), which is provided with a plurality of liquid outlet holes (61). The liquid outlet cover (6) is disposed on the liquid outlet (1), and the liquid outlet cover (6) and the liquid outlet (1) form a liquid outlet cavity. The liquid outlet holes (61) and the liquid outlet (24) are all connected to the liquid outlet cavity.

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