Liquid outlet device

Abstract

The invention 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] The present invention relates to the technical field of kitchen and bathroom equipment, and particularly to a liquid discharging device. Background Art

[0002] With the continuous improvement of people's requirements for shower comfort, an air-absorbing shower head is a device that increases the intake holes. While discharging liquid, air enters through the intake holes, so that a certain amount of gas is contained in the water. This not only saves water but also makes the water flow feel softer on the human body, reducing the pain of direct impact.

[0003] In the existing air-absorbing shower heads, the intake holes are generally provided on the ball head. When the water flow is blocked, the water is likely to flow out from the intake holes, resulting in overflow and backflow phenomena at the intake holes. Summary of the Invention

[0004] The purpose of the present invention is to provide a liquid discharging device that can avoid overflow and backflow phenomena at the intake holes.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A liquid discharging device, comprising:

[0007] A liquid discharging body, which is provided with a liquid discharging channel having a liquid inlet and a liquid outlet. The liquid inlet can be connected to a liquid supply member so that liquid can be discharged from the liquid outlet; an air intake channel is also provided on the liquid discharging body, which has an air inlet and an air outlet. The air outlet is communicated with the liquid discharging channel, and the air inlet is communicated with the external space;

[0008] An anti-backflow and anti-overflow assembly, which includes an air intake film and a gland. The air intake film is provided with a cut, and the gland fixes the air intake film to the air inlet,

[0009] The gland can make the cut close unidirectionally from the air outlet to the air inlet.

[0010] In some embodiments, the air intake film has a deformable part with flexibility. The cut is located in the deformable part. The gland has a top abutting part and a through hole. When the deformable part abuts against the top abutting part, the cut is closed; when the deformable part is away from the top abutting part, the cut is opened to communicate with the through hole.

[0011] In some embodiments, the air intake film has a fixing ring. The deformable part is arranged at one end of the fixing ring. The gland is provided with a gland ring, and the fixing ring is sleeved on the gland ring so that the top abutting part abuts against the deformable part, and the through hole is arranged between the top abutting part and the inner wall of the gland ring.

[0012] In some embodiments, the deformed part protrudes away from the fixed ring.

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

[0014] In some embodiments, the gland is detachably connected to the liquid outlet.

[0015] In some embodiments, a plurality of liquid outlet channels are provided, each liquid outlet channel corresponds to an air inlet channel, and each air inlet channel is provided with a suction assembly in one-to-one correspondence.

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

[0017] In some embodiments, the liquid outlet device further includes a housing, the housing is disposed on the liquid outlet, the housing and the liquid outlet enclose a receiving cavity, and the air inlet is located in the receiving cavity.

[0018] In some embodiments, the liquid outlet device further includes a liquid outlet surface cover, the liquid outlet surface cover is provided with a plurality of liquid outlet holes, the liquid outlet surface cover is disposed on the liquid outlet, the liquid outlet surface cover and the liquid outlet enclose a liquid outlet cavity, and the liquid outlet holes and the liquid outlet are both communicated with the liquid outlet cavity.

[0019] Advantages of the present invention:

[0020] When the liquid supply member supplies liquid to the liquid outlet channel, the liquid flows in the liquid outlet channel. Since the air outlet of the air inlet channel is communicated with the liquid outlet channel, the flow of the liquid will reduce the pressure at the air outlet of the air inlet channel, and the gas enters through the incision of the suction film at the air inlet of the air inlet channel, so that the liquid contains gas; if a blockage problem occurs at the liquid outlet of the liquid outlet channel and the liquid accumulates on the suction film in the air inlet channel, since the gland can make the incision close unidirectionally from the air outlet of the air inlet channel to the air inlet of the air inlet channel, the suction film prevents the liquid from passing through, thereby reducing the overflow phenomenon occurring at the air inlet channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an exploded view of the liquid outlet device of the present invention;

[0022] Figure 2 is an exploded view of the suction assembly in the liquid outlet device of the present invention;

[0023] Figure 3 is a schematic diagram of the gland in the liquid outlet device of the present invention;

[0024] Figure 4 is a schematic diagram of the suction film in the liquid outlet device of the present invention;

[0025] Figure 5 is a side sectional view of the liquid discharging device of the present invention showing the air suction assembly;

[0026] Figure 6 is Figure 5 the enlarged view at position A in

[0027] Figure 7 is a side sectional view of the liquid discharging device of the present invention showing the liquid discharging channel;

[0028] Figure 8 is Figure 7 the enlarged view at position B in

[0029] Figure 9 is a top sectional view of the liquid discharging device of the present invention showing the liquid discharging channel and the air intake channel.

[0030] In the figure:

[0031] 1. Liquid outlet;

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

[0033] 3. Air intake channel; 31. Connection section; 32. Buffer section; 321. Second step; 33. Air inlet; 34. Air outlet;

[0034] 4. Air suction assembly; 41. Air suction film; 411. Deformation part; 412. Notch; 413. Fixed ring; 414. First pressing ring; 42. Pressing cover; 421. Abutting top; 422. Flow through hole; 423. Pressing cover ring; 424. Second pressing ring; 425. Screwing handle; 43. Fixed sleeve ring; 431. First step; 432. Third pressing ring;

[0035] 5. Housing;

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

[0037] 7. Limit block;

[0038] 8. Liquid inlet pipe;

[0039] 9. Ball head. Detailed implementation manners

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only parts related to the present invention rather than all structures are shown in the drawings.

[0041] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0043] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0044] As Figures 1 to 9 shown, the present application provides a liquid discharging device, which includes a liquid discharging body 1 and a suction assembly 4. The liquid discharging body 1 is provided with a liquid discharging channel 2, and the liquid discharging channel 2 has a liquid inlet 23 and a liquid outlet 24. The liquid inlet 23 of the liquid discharging channel 2 can be connected to a liquid supply member so that liquid can be discharged from the liquid outlet 24 of the liquid discharging channel 2; an air inlet channel 3 is further provided on the liquid discharging body 1, and the air inlet channel 3 has an air inlet 33 and an air outlet 34. The air outlet 34 of the air inlet channel 3 is communicated with the liquid discharging channel 2, and the air inlet 33 of the air inlet channel 3 is communicated with the external space; the suction assembly 4 includes a suction film 41 and a gland 42. A cut 412 is provided on the suction film 41 to facilitate the entry of gas into the liquid discharging channel 2 to mix with water. The gland 42 fixes the suction film 41 to the air inlet 33 of the air inlet channel 3, and the gland 42 can make the cut 412 close unidirectionally from the air outlet 34 of the air inlet channel 3 to the air inlet 33 of the air inlet channel 3.

[0045] When the liquid supply member supplies liquid to the liquid outlet passage 2, the liquid flows in the liquid outlet passage 2. Since the air outlet 34 of the air inlet passage 3 is communicated with the liquid outlet passage 2, the pressure of the air outlet 34 of the air inlet passage 3 will be reduced due to the liquid flow, and the gas enters from the notch 412 of the suction film 41 at the air inlet 33 of the air inlet passage 3, so that the liquid contains gas. In this embodiment, the liquid is water, and the water and the gas are mixed to form bubble water; if a blockage problem occurs at the liquid outlet 24 of the liquid outlet passage 2 and the liquid accumulates on the suction film 41 in the air inlet passage 3, since the gland 42 can make the notch 412 close unidirectionally from the air outlet 34 of the air inlet passage 3 to the air inlet 33, the suction film 41 prevents the liquid from passing through, thereby reducing the overflow phenomenon occurring at the air inlet passage 3.

[0046] It should be noted here that the liquid outlet device can be used in bathroom and kitchen shower heads, ceiling sprays and other shower or rinsing devices, such as hand-held shower heads, etc., or other water outlet systems that need to be filled with gas.

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

[0048] As Figure 2 and Figure 4 shown, in some embodiments, the suction film 41 has a deformation part 411. The deformation part 411 has flexibility and can deform under the action of atmospheric external force. The notch 412 is located on the deformation part 411, and the gland 42 has a top abutting part 421. The top abutting part 421 abuts against the notch 412 of the deformation part 411. At this time, when a blockage occurs and the liquid accumulates on the suction film 41 in the air inlet passage 3, the external force of the liquid acts on the deformation part 411, and the deformation part 411 abuts against the top abutting part 421, so that the notch 412 remains closed; when there is no blockage and the liquid outlet passage 2 is flowing with liquid, the atmosphere is sucked into the liquid outlet passage 2 from the suction film 41. This atmospheric external force acts on the deformation part 411, causing it to move away from the top abutting part 421, thereby deforming, and the notch 412 opens. Exemplarily, the deformation part 411 can be made of flexible materials such as but not limited to rubber or silicone materials.

[0049] Specifically, as Figure 2 andFigure 4 As shown, the getter membrane 41 has a fixing ring 413 , and the deformation portion 411 is arranged at one end of the fixing ring 413 . In the current embodiment, the deformation portion 411 and the fixing ring 413 are integrally formed. The gland 42 includes a gland ring 423, a butt top 421 is arranged on the inner wall of the gland ring 423, and the fixing ring 413 is sleeved on the gland ring 423 so that the butt top 421 abuts the deformation part 411, and a flow hole 422 is arranged between the butt top 421 and the inner wall of the gland ring 423, so that gas can pass through the gland 42, flow to the air-intake membrane 41, and abut the air-intake membrane 41, so that the air-intake membrane 41 is deformed in the direction away from the butt top 421, thereby opening the incision 412 and allowing gas to pass through the air-intake membrane 41; and when liquid abuts the air-intake membrane 41 from one side of the air-intake membrane 41, the air-intake membrane 41 will not be deformed due to the abutment of the butt top 421, so that the air-intake membrane 41 is tightly abutted against the butt top 421, so that the incision 41 cannot be opened, and the liquid cannot flow out through the air-intake membrane 41 through the flow hole 422, thereby avoiding overflow.

[0050] like Figure 3 and Figure 4 As shown, exemplarily, the incision 412 can be a straight incision or a cross-shaped incision. When a cross-shaped incision is adopted, the top portion 421 is also cross-shaped. When the incision 412 adopts a straight incision, the top portion 421 can be a straight incision, and of course it can also be a cross-shaped. The specific form is not limited.

[0051] In the current embodiment, the incision 412 is a cross-shaped incision. By using the air intake membrane 41 with a cross-shaped incision, when the gas hits the air intake membrane 41, the incision 412 can be opened, thereby expanding the size of the incision 412, and reducing the noise when the gas passes through. Compared with the traditional fixed air inlet 33, it plays a role in noise reduction; and the above-mentioned enlarged incision 412 can still allow air to enter under low water pressure conditions, avoiding the inability to inhale air due to too low water pressure, thereby improving applicability. In some embodiments, a plurality of liquid outlet channels 2 are provided, and each liquid outlet channel 2 corresponds to an air intake channel 3, thereby increasing the efficiency of water outlet; each air intake channel 3 is configured with an air intake component 4. In the current embodiment, 4 liquid outlet channels 2 are provided, 4 air intake channels 3 are provided, and 4 air intake components 4 are also provided.

[0052] At the same time, when four liquid outlet channels 2 are provided, as shown in the following table, the use of the cross-cut air-intake membrane 41 in the current embodiment can expand the amount of air entering under the same pressure conditions, thereby further improving the water-saving capability of the water outlet device.

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

[0054] In some embodiments, the deformation portion 411 protrudes away from the fixed ring 413. Correspondingly, the end of the abutting portion 421 on one side of the deformation portion 411 also protrudes. In this protruding form, the incision 412 can be more conveniently opened; and when force is applied in the opposite direction, it is also more convenient to close, making it difficult for the deformation portion 411 to collapse.

[0055] As Figures 2 to 4 shown, in some embodiments, to facilitate the fixation of the suction film 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 one end of the fixed ring 413 away from the deformation portion 411 is provided with a first pressing ring 414. The first pressing ring 414 is also integrally formed with the fixed ring 413. Correspondingly, a second pressing ring 424 is further provided on the outer periphery of the gland ring 423. The second pressing ring 424 abuts the first pressing ring 414 against the first step 431 in the fixing collar 43 for fixation.

[0056] To fix the suction assembly 4 to the buffer section 32, a third pressing ring 432 is further 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 pressing ring 432 can be placed in the buffer section 32 for limiting, and at the same time, the second pressing ring 424 of the gland 42 is connected to the liquid outlet 1 for fixation.

[0057] As Figure 2 、 Figure 3 and Figure 6 shown, in some embodiments, to facilitate later maintenance, the second pressing ring 424 of the gland 42 is detachably connected to the liquid outlet 1, so that the gland 42 can be conveniently disassembled, and then the suction assembly 4 can be removed from the liquid outlet 1. In the current embodiment, two opposite 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 spaced above the opening end of the buffer section 32, so that a clamping space is formed between the second end of the limiting block 7 and the opening end of the buffer section 32; the second pressing ring 424 of the gland 42 has opposite cutting edges, and the distance between the two opposite cutting edges 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 pressing ring 424 perpendicular to the connecting line of the two cutting edges is greater than the distance between the second ends of the two limiting blocks 7, so that the second pressing ring 424 can be rotated into the clamping space from the cutting edge side for limiting, thereby fixing the gland 42. To facilitate screwing, a screwing handle 425 is further provided on the second pressing ring 424. In some other embodiments, the gland 42 can also be fixed to the liquid outlet 1 by various connection methods such as plugging and bolt connection.

[0058] As 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 that are sequentially connected from the liquid inlet 23 of the liquid outlet channel 2 to the liquid outlet 24 of the liquid outlet channel 2. That is, the size of the liquid outlet channel 2 changes from small to large. The gas outlet 34 of the air inlet channel 3 is connected to the junction of the small-diameter section 21 and the large-diameter section 22. According to the Venturi effect, when the liquid passes through the liquid outlet channel 2, a negative pressure will be generated at the junction of the small-diameter section 21 and the large-diameter section 22, so that the gas can enter the liquid outlet channel 2 more easily. In some embodiments, the small-diameter section 21 is formed by the inner concave of the channel wall of the liquid outlet channel 2.

[0059] As Figure 1 shown, in some embodiments, the liquid outlet device further includes a liquid outlet cover 6. The liquid outlet cover 6 is arranged on the liquid outlet body 1. The liquid outlet cover 6 and the liquid outlet body 1 enclose 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; and the liquid outlets 24 of the liquid outlet channels 2 are all communicated with the liquid outlet cavity, so that the water in the liquid outlet channels 2 first converges into the liquid outlet cavity and then flows out through the liquid outlet holes 61, making the water outlet more uniform.

[0060] As Figure 9 shown, in some embodiments, each liquid outlet channel 2 is provided with a liquid inlet 23 and a plurality of liquid outlets 24, thereby improving the liquid outlet efficiency and increasing the uniformity of the liquid outlet. And for the convenience of liquid inlet, a liquid inlet pipe 8 is arranged on the liquid outlet body 1. The liquid inlets 23 of the liquid outlet channels 2 are all connected to the liquid inlet pipe 8, so as to be connected to an external liquid supply member through the liquid inlet pipe 8. In some embodiments, a ball head 9 is further arranged at one end of the liquid inlet pipe 8 away from the liquid outlet body 1, so as to adjust the rotation angle of the liquid outlet body 1 through the ball head 9, which is convenient for adjusting the liquid outlet angle. A water-saving piece and a filter screen can also be arranged in the ball head 9, and a wear-resistant ring can also be arranged outside the ball head 9, etc., which will not be elaborated here; and the ball head 9 itself is a commonly used component in the prior art and will not be elaborated here either.

[0061] As Figure 1 shown, in some embodiments, the liquid outlet device further includes a housing 5. The housing 5 is arranged on the liquid outlet body 1. The housing 5 and the liquid outlet body 1 enclose a receiving cavity. The receiving cavity and the liquid outlet cavity are located on both sides of the liquid outlet body 1 and are not communicated with each other. The air inlet 33 of the air inlet channel 3 is located in the receiving cavity, so as to avoid the exposure of the air suction assembly 4 and the flow holes 422 and prevent them from being blocked by sundries.

[0062] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Liquid discharging device, characterized in that Comprising: A liquid outlet (1), the liquid outlet (1) is provided with a liquid outlet channel (2), the liquid outlet channel (2) has a liquid inlet (23) and a liquid outlet (24), the liquid inlet (23) can be connected to a liquid supply member so as to be able to discharge liquid from the liquid outlet (24); an air inlet channel (3) is further provided on the liquid outlet (1), the air inlet channel (3) has an air inlet (33) and an air outlet (34), the air outlet (34) is communicated with the liquid outlet channel (2), and the air inlet (33) is communicated with the external space; An air suction assembly (4), the air suction assembly (4) includes an air suction film (41) and a gland (42), a notch (412) is provided on the air suction film (41), the gland (42) fixes the air suction film (41) to the air inlet (33), and the gland (42) can unidirectionally close the notch (412) from the air outlet (34) of the air inlet channel (3) to the air inlet (33).

2. The liquid discharging device according to claim 1, characterized in that The air suction film (41) has a deformation part (411), the deformation part (411) has flexibility, the notch (412) is located in the deformation part (411), the gland (42) has an abutting top (421), the gland (42) has a circulation hole (422), when the deformation part (411) abuts against the abutting top (421), the notch (412) is closed; when the deformation part (411) is away from the abutting top (421), the notch (412) is opened to communicate with the circulation hole (422).

3. The liquid discharging device according to claim 2, characterized in that The air suction film (41) has a fixing ring (413), the deformation part (411) is arranged at one end of the fixing ring (413), the gland (42) is provided with a gland ring (423), the fixing ring (413) is sleeved on the gland ring (423) so that the abutting top (421) abuts against the deformation part (411), and the circulation hole (422) is arranged between the abutting top (421) and the inner wall of the gland ring (423).

4. The liquid discharging device according to claim 3, characterized in that The deformation part (411) protrudes in a direction away from the fixing ring (413).

5. The liquid discharging device according to claim 1, wherein The notch (412) is in a shape of a straight line or a cross.

6. The liquid discharging device according to claim 1, wherein The gland (42) is detachably connected to the liquid outlet (1).

7. The liquid discharging device according to claim 1, characterized in that A plurality of the liquid outlet channels (2) are provided, each liquid outlet channel (2) corresponds to an air inlet channel (3), and each air inlet channel (3) is provided with an air suction assembly (4) in one-to-one correspondence.

8. The liquid discharging 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 to the junction of the small-diameter section (21) and the large-diameter section (22).

9. The liquid discharging device according to any one of claims 1-8, characterized in that, The liquid discharging device further includes a housing (5), the housing (5) is arranged on the liquid outlet (1), the housing (5) and the liquid outlet (1) enclose a containing cavity, and the air inlet (33) is located in the containing cavity.

10. The liquid outlet device according to any one of claims 1-8, characterized in that, The liquid outlet device further includes a liquid outlet surface cover (6), the liquid outlet surface cover (6) is provided with a plurality of liquid outlet holes (61), the liquid outlet surface cover (6) is arranged on the liquid outlet body (1), the liquid outlet surface cover (6) and the liquid outlet body (1) enclose a liquid outlet cavity, and the liquid outlet holes (61) and the liquid outlet (24) are both communicated with the liquid outlet cavity.

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