Air suction assembly and bubbler

Abstract

The air suction assembly and the bubbler comprise a main body, the main body is provided with a water flow channel extending in the axial direction and further provided with at least one air suction channel extending in the radial direction, and the air suction channel is communicated with the water flow channel and the outside so as to suck air under the action of negative pressure generated by flowing of water flow. The air suction channel is provided with a Tesla valve structure to prevent water flow in the water flow channel from flowing back to the outside. The utility model has the anti-reflux effect and ensures the air suction effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bathroom, especially an air suction assembly and a bubbler. BACKGROUND

[0002] The existing faucet bubbler usually sets up single air suction hole and single air suction pipeline, produces negative pressure around through accelerating water flow, carries out air suction through air suction pipeline and air suction hole, and the water flow of mixed gas is cut to produce micro-bubble water through multiple filter screen assemblies. The air suction pipeline only uses the principle of negative pressure air suction, has no anti-backflow structure, and water flow is easy to flow out of the air suction hole from the air suction pipeline, thereby affecting the air suction effect. In addition, once the air suction hole or the air suction pipeline is blocked, the single air suction pipeline structure cannot produce bubble water, thereby affecting the experience of users. SUMMARY

[0003] The main purpose of the utility model is to overcome the defect that the existing air suction pipeline has no anti-backflow structure, and an air suction assembly and a bubbler are provided, which have an anti-backflow effect.

[0004] The utility model adopts the following technical scheme:

[0005] An air suction assembly comprises a main body, the main body is provided with an axially extending water flow channel, and the main body is further provided with at least one radially extending air suction channel, the air suction channel is connected with the water flow channel and the outside to suck air under the action of negative pressure generated by accelerated water flow, and the air suction channel is provided with a Tesla valve structure to prevent water flow in the water flow channel from flowing back to the outside.

[0006] The Tesla valve structure comprises a first branch and a second branch; in the radial direction, the first branch is arranged to extend in a curve, the second branch is arranged to extend in a straight line, and one end of the first branch and the second branch is merged to form a junction and is connected to the outside, and the other end of the first branch and the second branch is connected to the water flow channel.

[0007] The main body comprises at least two air suction members arranged in the axial direction and connected in sequence, the at least two air suction members are provided with through holes penetrating in the axial direction to form the water flow channel, opposite sides of adjacent two air suction members are respectively provided with a convex portion and a groove surrounding the through hole and extending in the axial direction, the convex portion and the groove are matched in concave-convex and have a gap to form the first branch, and the convex portion is further provided with a communication hole, the communication hole extends in the radial direction and is connected to the through hole to form the second branch.

[0008] The through hole of the air suction member located at the water inlet end of the water flow channel is provided with a variable diameter section, the variable diameter section is located at the end of the through hole away from the Tesla valve structure and is arranged to gradually decrease in the inner diameter along the water flow direction, or the through hole of the air suction member located at the water outlet end of the water flow channel is also provided with a variable diameter section, the variable diameter section is located at the end of the through hole away from the Tesla valve structure and is arranged to gradually increase in the inner diameter along the water flow direction.

[0009] The inner wall of the water flow channel is provided with a protruding water blocking part at the communication position with the second branch, the water blocking part extends along the circumference of the inner wall of the water flow channel and is provided with a radially extending water blocking surface, and the water blocking surface is located between the first branch and the second branch.

[0010] The air suction channel is further provided with a chamber and a plurality of air inlet channels; the chamber surrounds the outer periphery of the water flow channel, one end of the plurality of air inlet channels is communicated with the chamber, and the other end is communicated with the outside; and the Tesla valve structure is communicated between the chamber and the water flow channel.

[0011] A kind of bubbler, including shell and water outlet nozzle, shell is axially through and is provided with installation cavity, at least one air suction hole group is opened in installation cavity side wall;Still including a kind of air suction assembly, main body is installed in installation cavity, at least one air suction hole group is communicated with at least one air suction channel corresponding;Water outlet nozzle is detachably fixed in shell and located the water outlet end of water flow channel.

[0012] Installation cavity is provided with two groups of air suction hole groups, each group of air suction hole group is equipped with a plurality of circumferentially spaced air suction holes;Main body is provided with two air suction channels, two air suction channels are respectively communicated with the air suction hole of corresponding air suction hole group.

[0013] Further including first filter screen group, first filter screen group is detachably fixed in shell and located the water inlet end of air suction assembly.

[0014] Further including support and two second filter screen groups, support is fixed in water outlet nozzle and is provided with a plurality of grids, two second filter screen groups are respectively located on the two sides in the axial direction of support.

[0015] From the above description of the utility model, compared with the prior art, the utility model has the following beneficial effects:

[0016] 1、in the utility model, at least one air suction channel radially extending on main body is inhaled under the negative pressure effect generated by water flow, and Tesla valve structure is further provided on air suction channel to prevent water flow in water flow channel from flowing back to the outside, so as to ensure the air suction effect.

[0017] 2、in the utility model, Tesla valve structure includes first branch and second branch, two branches with different shapes are arranged, and the water flow flowing back collides with each other at the convergence inlet, so as to increase the backflow resistance and effectively prevent the air inlet pipeline from being blocked due to water flow back.

[0018] 3、in the utility model, main body can be connected by at least two air suction parts in split type, the opposite sides of adjacent two air suction parts are respectively provided with circumferentially extending convex parts and concave grooves, the first branch is formed by the concave-convex cooperation of convex part and concave groove, the second branch is formed by the communication hole on convex part and the communication hole, the main body is detachable into a plurality of components, so that the processing is simple and fast, and the cost is low.

[0019] 4、 The utility model discloses a plurality of air suction hole groups are arranged on the shell, and a plurality of air suction channels are arranged on the main body to correspondingly communicate with the air suction hole groups, through the plurality of axially distributed air suction channels, the function of micro-nano bubbles can be realized without being blocked by a certain air suction channel.

[0020] 5、 The utility model discloses a first filter screen group and a second filter screen group are arranged, the water in the water flow channel is filtered through the first filter screen group, and the water flow mixed with a large number of bubbles is cut through the second filter screen group, thereby obtaining high-concentration micro-nano bubble water. DRAWINGS

[0021] Figure 1 It is the exploded view of the air suction assembly of the utility model;

[0022] Figure 2 It is the sectional view of the air suction assembly;

[0023] Figure 3 It is the sectional view of the air suction assembly; Figure 2

[0024] Figure 4 It is the sectional view of the air suction assembly; Figure 2

[0025] Figure 5 It is the sectional view of the air suction assembly;

[0026] Figure 6 It is the sectional view of the air suction assembly;

[0027] Figure 7 It is the sectional view of the air suction assembly; Figure 6

[0028] Figure 8 It is the sectional view of the air suction assembly; Figure 6

[0029] Figure 9 It is the air suction schematic view of one air suction channel;

[0030] Figure 10 It is the air suction schematic view of another air suction channel;

[0031] Figure 11 It is the sectional view of the air suction assembly; Figure 6

[0032] Figure 12 It is the sectional view of the air suction assembly; Figure 6

[0033] Among them:

[0034] ​​​​​​10, main body; 10a, air suction passage; 11, water flow passage; 12, variable diameter section; 13, water blocking part; 13a, water blocking surface; 14, air suction member; 15, through hole; 16, convex part, 16a, communication hole; 17, groove, 18, chamber; 18a, ring groove; 19, air inlet passage; 19a, recess; 20, Tesla valve structure; 21, first branch; 22, second branch, 23, intersection; 30, shell; 31, mounting cavity; 32, air suction hole group, 33, support; 34, retainer; 35, mesh; 40, water outlet nozzle; 50, first filter mesh group; 60, second filter mesh group, 61, filter mesh. DETAILED DESCRIPTION

[0035] The utility model will be further described below through specific embodiments.

[0036] Reference Figures 1 to 4 An air suction assembly includes a main body 10, which is provided with an axially extending water flow passage 11 and at least one radially extending air suction passage 10a. The air suction passage 10a is in communication with the water flow passage 11 and the outside world. When water flows in the water flow passage 11, negative pressure is generated around the area where the air suction passage 10a is located. Under the action of the negative pressure, air is sucked from the outside atmosphere through the air suction passage 10a and mixed into the water flow. The air suction passage 10a is further provided with a Tesla valve structure 20, which prevents the water flow in the water flow passage 11 from flowing back to the outside world.

[0037] The Tesla valve structure 20 includes a first branch 21 and a second branch 22. In the radial direction, the first branch 21 is arranged to extend in a curve, i.e., the path of the first branch 21 is a curve, including an arc, a U shape, a V shape, etc. The second branch 22 is arranged to extend in a straight line, i.e., the path of the second branch 22 is perpendicular to the axial direction of the main body 10 or has an included angle with the axial direction. One end of the first branch 21 and the second branch 22 is merged and communicated to the outside world, i.e., one end of the first branch 21 and the second branch 22 forms an intersection 23, and the outside air is divided into two paths after passing through the intersection 23 and enters the first branch 21 and the second branch 22 respectively. The other end of the first branch 21 and the second branch 22 is respectively communicated to the water flow passage 11, i.e., the other end of the first branch 21 and the second branch 22 is respectively and independently communicated to the water flow passage 11, and the outside air enters the water flow passage 11 through the two paths, see Figure 3 .

[0038] In this embodiment, see Figure 4If the water flow in the water flow channel 11 enters the air suction channel 10a, the water flow can be divided into two paths, one of which flows along the curved path of the first branch 21, and the other of which flows along the straight line of the second branch 22. When the water flow reaches the intersection 23 of the first branch 21 and the second branch 22, the water flow of the first branch 21 impacts the water flow of the second branch 22, causing the kinetic energy of the water flow to be lost, thereby increasing the resistance to backflow and achieving the anti-backflow effect.

[0039] Further, the water flow channel 11 is provided with a raised water blocking portion 13 at the inner wall thereof communicating with the second branch 22. The water blocking portion 13 extends circumferentially along the inner wall of the water flow channel 11 and is provided with a radially extending water blocking surface 13a located between the first branch 21 and the second branch 22. The water blocking surface 13a can block the water flow entering the second branch 22 to consume its kinetic energy, thereby increasing the difficulty of backflow.

[0040] In the embodiment, the main body 10 can be of an integral structure or a split structure, and the split structure is taken as an example in the drawings. The main body 10 includes at least two air suction members 14 arranged along the axial direction and connected in sequence. The two air suction members 14 can be connected by using common connection methods, such as concave-convex fitting, buckle fitting, or screw fitting, etc. The middle part of each of the at least two air suction members 14 is provided with an axial through hole 15, and the through holes 15 of the at least two air suction members 14 are sequentially communicated to form a water flow channel 11.

[0041] Among them, the opposite sides of the adjacent two air suction members 14 are respectively provided with a convex portion 16 and a groove 17 which surround the through hole 15 and extend axially, that is, on the opposite sides of the adjacent two air suction members 14, one side is provided with the convex portion 16, and the other side is provided with the groove 17. The protruding direction of the convex portion 16 and the recessed direction of the groove 17 are the same, so that the convex portion 16 and the groove 17 are concave-convex fitted, and the concave-convex fitted portion has a gap to form the first branch 21. The convex portion 16 is a ring structure surrounding the through hole 15 and is provided with a communication hole 16a which extends radially and communicates with the through hole 15 to form the second branch 22. The communication hole 16a is located outside the concave-convex fitted portion of the convex portion 16 and the groove 17, and the water blocking portion 13 is formed in the inner wall of the through hole 15.

[0042] In practical application, the number of air suction members 14 can be set according to the number of air suction channels 10a. If the air suction channel 10a is two, then the air suction member 14 is three, if the air suction channel 10a is three, then the air suction member 14 is four, and so on. The shape of the convex portion 16 and the groove 17 is designed according to the path of the first branch 21, so the shape of the groove 17 can be arc-shaped, U-shaped, V-shaped, etc. The shape of the convex portion 16 is matched with the shape of the groove 17, which ensures that the gap between them forms a set curved path.

[0043] In this embodiment, the water flow entering the water flow passage 11 is accelerated. The main body 10 is provided with a variable-diameter section 12 at the end of the water flow passage 11, and the water flow is accelerated through the variable-diameter section 12 to enter the water flow passage 11. Specifically, the through hole 15 of the air suction member 14 at the water inlet end of the water flow passage 11 is provided with a variable-diameter section 12 at the end of the through hole 15 away from the Tesla valve structure 20 and gradually decreasing in inner diameter along the water flow direction, and the water flow is accelerated through the variable-diameter section 12 to enter the water flow passage 11. According to needs, a diffusion structure can also be provided at the water outlet end of the water flow passage 11, that is, another variable-diameter section 12 is provided at the through hole 15 of the air suction member 14 at the water outlet end of the water flow passage 11, and the variable-diameter section 12 is located at the end of the through hole 15 away from the Tesla valve structure 20 and gradually increases in inner diameter along the water flow direction.

[0044] Further, the air suction passage 10a is also provided with a chamber 18 and a plurality of air inlet passages 19. The chamber 18 surrounds the outer periphery of the water flow passage 11, and the Tesla valve structure 20 is communicated between the chamber 18 and the water flow passage 11, that is, the chamber 18 surrounds the outer periphery of the Tesla structure, and the intersection 23 of the first branch 21 and the second branch 22 is communicated with the chamber 18. The plurality of air inlet passages 19 are distributed along the circumferential direction of the main body and extend along the radial direction, one end of the air inlet passage 19 is communicated with the chamber 18, and the other end is communicated with the outside.

[0045] In actual application, the chamber 18 and the air inlet passage 19 are formed at the opposite sides of the adjacent two air suction members 14, then the chamber 18 is divided into two part annular grooves 18a, the air inlet passage 19 is divided into two part recesses 19a, one part annular groove 18a of the chamber 18 and one part recess 19a of the air inlet passage 19 are located on one air suction member 14, the other part annular groove 18a of the chamber 18 and the other part recess 19a of the air inlet passage 19 are located on the other air suction member 14, and when the two air suction members 14 are connected, the two part annular grooves 18a are spliced to form the chamber 18, and the two part recesses 19a are spliced to form the air inlet passage 19.

[0046] Referring to Figures 5-12 In this embodiment, a bubbler is also provided, which comprises a shell 30, a water outlet nozzle 40 and the above-mentioned air suction assembly. The shell 30 is axially through and provided with a mounting cavity 31, and at least one air suction hole group 32 is formed in the side wall of the mounting cavity 31. The main body 10 of the air suction assembly is mounted in the mounting cavity 31, and there is a gap between the main body 10 and the inner wall of the mounting cavity 31. The at least one air suction hole group 32 is communicated with the at least one air suction passage 10a. The water outlet nozzle 40 is detachably fixed to the shell 30 and located at the water outlet end of the water flow passage 11. The water flow mixed with a large amount of air sucked by the air suction assembly enters the water outlet nozzle 40 to be bubbled and discharged.

[0047] The installation cavity 31 can be sized according to the size of the air suction assembly, and the number of the air suction hole groups 32 on the installation cavity 31 is set according to the number of the air suction channels 10a. In the figure, two air suction channels 10a and two air suction hole groups 32 are taken as an example, each air suction hole group 32 is provided with a plurality of air suction holes distributed in a circumferential direction, and the two air suction channels 10a are respectively communicated with the air suction holes of the corresponding air suction hole groups 32.

[0048] Further, the first filter screen group 50, the bracket 33 and the second filter screen group 60 are further included, the first filter screen group 50 is detachably fixed in the shell 30 and located at the water inlet end of the air suction assembly, and is used for filtering the water flow entering the air suction assembly. The bracket 33 is fixed in the water outlet nozzle 40 and is provided with a plurality of grids 35, and the two second filter screen groups are respectively located on the two sides in the axial direction of the bracket 33. Each second filter screen group 60 is provided with a plurality of filter screens 61, and the bubbles in the water are cut multiple times through the plurality of filter screens 61 of the two second filter screen groups 60, so that the diameter of the bubbles in the water is reduced, and high-concentration micro-nano bubble water is obtained.

[0049] Wherein, referring to Figure 11 , Figure 12 , in order to better fix the second filter screen group 60, the annular retaining frame 34 is further arranged, one of the second filter screen groups 60 is clamped through the retaining frame 34 and the bracket 33, and the other second filter screen group 60 is clamped through the bracket 33 and the inner wall of the shell 30. Wherein, the intersecting grids 35 are arranged on the bracket 33, which not only plays a role in pressing the filter screen 61, but also plays a role in supporting the filter screen 61, so as to prevent the second filter screen group 60 from being deformed under the impact of the water flow for a long time.

[0050] The working principle of the air suction assembly and the bubbler of the utility model is as follows, taking the air suction assembly provided with two air suction channels 10a as an example.

[0051] After the water flow passes through the first filter screen group 50, the water flow enters the reducing section 12 of the air suction assembly to accelerate, and the water flow speed is greatly increased. According to Bernoulli's law, the greater the flow speed, the lower the pressure. The water flow channel 11 forms a negative pressure at the first-stage air suction channel 10a, air is sucked by the first-stage air suction channel 10a and then enters the water flow channel 11 to mix with the water flow and continue to flow forward, and the water flow is mixed with a large amount of air when passing through the second-stage air suction channel 10a, and the second-stage air suction channel 10a also sucks air, so that the water flow is mixed with a large amount of air. Figure 9 and Figure 10 In order to further reduce the diameter of the bubbles in the water, the bubbles in the water are cut multiple times through the plurality of filter screens 61 of the second filter screen group 60 of the water outlet nozzle 40, and high-concentration micro-nano bubble water is obtained.

[0052] In the embodiment, the air flow can pass through the Tesla valve structure 20 in the air suction channel 10a to smoothly enter the water flow channel 11 and mix with the water flow, and when the water flow flows out of the air suction channel 10a along the flow channel, on the one hand, the water flow will increase the difficulty of backflow under the action of the water blocking surface 13a; on the other hand, the water flow entering the first branch 21 and the second branch 22 will impact each other at the intersection 23 of the two, further increasing the backflow resistance, thereby achieving the anti-backflow effect.

[0053] The terms "first", "second", and the like appearing in the utility model are only used for convenient description, to distinguish different components with the same name, and do not represent the order or primary and secondary relationship.

[0054] In the description of the utility model, the orientation or position relationship indicated by "up", "down", "left", "right", "front" and "back" is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model, and does not indicate or imply that the device must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the utility model.

[0055] In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship between the associated objects is described as "and / or", which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the front and rear associated objects have an "or" relationship.

[0056] The above is only a specific embodiment of the utility model, but the design concept of the utility model is not limited to this, and any non-essential change to the utility model using this concept shall be regarded as an infringement of the protection scope of the utility model.

Claims

1. An air intake assembly comprising a body provided with an axially extending water flow passage, characterised in that: The main body is also provided with at least one air suction channel extending in radial direction, which is communicated with the water flow channel and the outside to suck air under the negative pressure generated by the water flow, and is provided with a Tesla valve structure to prevent the water flow in the water flow channel from flowing back to the outside.

2. A suction assembly as claimed in claim 1, wherein: The main body is provided with a variable diameter section at the end of the water flow channel to accelerate the incoming water flow; the Tesla valve structure comprises a first branch and a second branch; in the radial direction, the first branch extends in a curve, the second branch extends in a straight line, and one end of the first branch and the second branch merges to form a junction and is communicated to the outside, and the other end of the first branch and the second branch is respectively communicated to the water flow channel.

3. A suction assembly as claimed in claim 2, wherein: The main body comprises at least two air suction members arranged in axial direction and connected in sequence, and the at least two air suction members are provided with through holes extending in axial direction to form the water flow channel; the opposite sides of the adjacent two air suction members are respectively provided with a protrusion and a groove extending in axial direction around the through hole, and the protrusion and the groove are matched and have a gap to form the first branch, and the protrusion is further provided with a communication hole extending in radial direction and communicated with the through hole to form the second branch.

4. A getter assembly according to claim 3, characterized in that: The through hole of the air suction member located at the water inlet end of the water flow channel is provided with the variable diameter section located at the end of the through hole away from the Tesla valve structure and gradually decreasing in inner diameter along the water flow direction; or the through hole of the air suction member located at the water outlet end of the water flow channel is also provided with the variable diameter section located at the end of the through hole away from the Tesla valve structure and gradually increasing in inner diameter along the water flow direction.

5. A suction assembly as claimed in claim 2, wherein: The inner wall of the water flow channel is provided with a raised water blocking portion communicated with the second branch, and the water blocking portion extends in circumferential direction along the inner wall of the water flow channel and is provided with a radially extending water blocking surface located between the first branch and the second branch.

6. A getter assembly according to claim 1, characterized in that: The air suction channel is further provided with a chamber and a plurality of air inlet channels; the chamber surrounds the outer periphery of the water flow channel, and the plurality of air inlet channels are communicated at one end to the chamber and at the other end to the outside; the Tesla valve structure is communicated between the chamber and the water flow channel.

7. A bubbler comprising a housing and a water outlet nozzle, the housing being axially through and provided with a mounting cavity, a side wall of the mounting cavity being provided with at least one air suction hole group; characterized in that: Further comprising an air suction assembly according to any one of claims 1 to 6, the main body is installed in the installation cavity, at least one air suction hole group is communicated with at least one air suction channel; the water outlet nozzle is detachably fixed to the shell and located at the water outlet end of the water flow channel.

8. A sparger as claimed in claim 7, characterised in that: The installation cavity is provided with two groups of air suction holes, each group of air suction holes is provided with a plurality of circumferentially spaced air suction holes; the main body is provided with two air suction channels, and the two air suction channels are respectively communicated with the air suction holes of the corresponding air suction hole group.

9. A sparger as defined in claim 7, wherein: Further comprising a first filter screen group, which is detachably fixed in the shell and located at the water inlet end of the air suction assembly.

10. A sparger as defined in claim 7, wherein: Further comprising a support and two second filter screen groups, the support is fixed in the water outlet nozzle and is provided with a plurality of meshes, and the two second filter screen groups are respectively located on both sides in the axial direction of the support.

Images