阅读说明：本技术 喷管组件和家用电器 (Spout subassembly and domestic appliance ) 是由 张留广 于 2020-03-02 设计创作，主要内容包括：本发明公开了一种喷管组件和家用电器。喷管组件包括第一管、第二管和导向结构,第二管能够相对第一管向第一管运动以与第一管连接,导向结构安装在第一管和第二管,导向结构用于在第二管向第一管运动的情况下引导第二管转动至预设位置以与第一管连接。在本发明实施方式的喷管组件和家用电器中,导向结构可以在第二管向第一管运动的情况下,引导第二管转动至预设位置以与第一管准确地连接。如此,即使在第一管和第二管分离时,第二管发生了偏转,在再次连接的过程中,导向结构也能够对第二管进行导向以使其转动至预设位置,从而使得第二管与第一管对位准确以实现连接。(The invention discloses a spray tube assembly and a household appliance. The spray pipe assembly comprises a first pipe, a second pipe and a guide structure, wherein the second pipe can move relative to the first pipe to be connected with the first pipe, the guide structure is arranged on the first pipe and the second pipe, and the guide structure is used for guiding the second pipe to rotate to a preset position to be connected with the first pipe under the condition that the second pipe moves to the first pipe. In the nozzle assembly and the home appliance according to the embodiments of the present invention, the guide structure may guide the second tube to rotate to a preset position to be accurately connected with the first tube in a state that the second tube moves toward the first tube. So, even when first pipe and second pipe are separated, the second pipe has taken place the deflection, and at the in-process of reconnecting, guide structure also can lead so that it rotates to predetermineeing the position to the second pipe to make second pipe and first pipe counterpoint the accuracy in order to realize being connected.)

1. A spout assembly, comprising:

a first tube;

a second tube movable relative to the first tube toward the first tube to connect with the first tube; and

a guide structure mounted to the first and second tubes for guiding the second tube to rotate to a predetermined position for connection with the first tube when the second tube moves toward the first tube.

2. The nozzle assembly of claim 1, wherein the guide structure comprises a guide portion fixedly connected to the first tube and a holding portion fixedly connected to the second tube, and when the second tube moves toward the first tube, the holding portion is configured to hold the guide portion and move on the guide portion to rotate the second tube to the predetermined position.

3. The nozzle assembly of claim 2, wherein the guide portion is formed with an inclined surface, the inclined surface is inclined upward from the bottom of the guide portion to a side where the first tube is located, the inclined surface is used for abutting against the abutting portion, and the abutting portion can move on the inclined surface to drive the second tube to rotate.

4. The spout assembly of claim 2, wherein the inclined surface is elliptical, and a movement locus of the abutting portion on the inclined surface is elliptical.

5. The spout assembly of claim 3 wherein the angle of inclination of the ramp is 40 ° to 60 °.

6. The spout assembly of claim 3, wherein the inclined surface is formed with a stopper groove for restricting rotation of the second tube in case the second tube is rotated to the preset position.

7. The nozzle assembly of claim 6, wherein the inclined surface is formed with a protrusion spaced from the retaining groove, the protrusion configured to abut against the abutting portion to guide the abutting portion to the inclined surface.

8. The spout assembly of claim 2, wherein the guide portion comprises a first end facing the second tube and a second end facing the first tube, the second end being fixedly connected with the first tube, the guide portion being formed with a tapered guide channel from the first end to the second end, the first end being formed with an opening communicating with the guide channel, the guide channel being for insertion of the second tube for connection with the first tube.

9. The spout assembly of claim 8 wherein the opening has a diameter that is greater than a diameter of the first tube and a diameter of the second tube.

10. The spout assembly of claim 8 comprising a seal that seals a gap between the second tube and an inner wall of the guide channel when the first tube and the second tube are connected.

11. The nozzle assembly of claim 2, wherein the retaining portion comprises a mounting portion and a retaining member mounted on the mounting portion, the mounting portion is fixedly connected to the second tube, and the retaining member is configured to retain the guide portion and move on the guide portion to rotate the mounting portion and the second tube.

12. The nozzle assembly of claim 11, wherein the retaining member is rotatably disposed on the mounting portion, and the retaining member is configured to retain the guide portion and roll on the guide portion to rotate the mounting portion and the second tube.

13. The nozzle assembly of claim 1, wherein one end of the first tube is formed with a first engaging portion, and one end of the second tube is formed with a second engaging portion, which is engaged with the first engaging portion to connect the first tube and the second tube.

14. The spout assembly of claim 13, wherein the first engaging portion is formed with a first concavo-convex structure, and the second engaging structure is formed with a second concavo-convex structure that cooperates with the first concavo-convex structure to connect the first tube and the second tube.

15. The nozzle assembly according to any one of claims 2 to 4, wherein a guide groove is formed on a surface of the guide portion, and the guide groove is used for cooperating with the abutting portion to guide the movement of the abutting portion, so as to drive the second tube to rotate to the preset position.

16. A domestic appliance comprising a spout assembly according to any one of claims 1-15.

Technical Field

The invention relates to the field of household appliances, in particular to a spray pipe assembly and a household appliance.

Background

In the related art, but dish washer adopts the bar spray arm of rotation to wash, and the bar spray arm need be fixed on the bowl basket and with water piping connection, because the bowl basket needs often push-and-pull to come out, the spray tube follows the motion of bowl basket, and spray tube and water piping separation, however, can lead to the spray arm to take place to rotate like this to make the position of spray arm take place the skew, and then make the spray arm have the inaccurate problem of counterpointing when the water piping is connected once more.

Disclosure of Invention

Embodiments of the present invention provide a nozzle assembly and a home appliance.

The nozzle assembly of the embodiment of the present invention includes:

a first tube;

a second tube movable relative to the first tube toward the first tube to connect with the first tube; and

a guide structure mounted to the first and second tubes for guiding the second tube to rotate to a predetermined position for connection with the first tube when the second tube moves toward the first tube.

In the nozzle assembly according to the embodiment of the present invention, the guide structure may guide the second pipe to rotate to a preset position to be accurately connected with the first pipe in a case where the second pipe moves toward the first pipe. So, even when first pipe and second pipe are separated, the second pipe has taken place the deflection, and at the in-process of reconnecting, guide structure also can lead so that it rotates to predetermineeing the position to the second pipe to make second pipe and first pipe counterpoint the accuracy in order to realize being connected.

In some embodiments, the guiding structure includes a guiding portion fixedly connected to the first tube and a supporting portion fixedly connected to the second tube, and when the second tube moves toward the first tube, the supporting portion is configured to support the guiding portion and move on the guiding portion to drive the second tube to rotate to the preset position.

In some embodiments, the guide portion is formed with an inclined surface, the inclined surface inclines upward from the bottom of the guide portion to a side where the first pipe is located, the inclined surface is used for abutting against the abutting portion, and the abutting portion can move on the inclined surface to drive the second pipe to rotate.

In some embodiments, the inclined surface is elliptical, and a motion track of the abutting portion on the inclined surface is elliptical.

In some embodiments, the angle of inclination of the ramp is 40 ° to 60 °.

In some embodiments, the inclined surface is formed with a stopper groove for restricting rotation of the second pipe in a case where the second pipe is rotated to the preset position.

In some embodiments, the inclined surface is formed with a protrusion, the protrusion and the limiting groove are arranged at an interval, and the protrusion is used for abutting against the abutting portion to guide the abutting portion to the inclined surface.

In some embodiments, the guide portion includes a first end facing the second tube and a second end facing the first tube, the second end being fixedly connected with the first tube, the guide portion is formed with a tapered guide channel from the first end to the second end, the first end is formed with an opening communicating with the guide channel, and the guide channel is used for inserting the second tube to be connected with the first tube.

In certain embodiments, the diameter of the opening is greater than the diameter of the first tube and the diameter of the second tube.

In certain embodiments, the spout assembly includes a sealing member that seals a gap between the second tube and an inner wall of the guide passage with the first tube and the second tube connected.

In some embodiments, the abutting portion includes an installation portion and an abutting member installed on the installation portion, the installation portion is fixedly connected to the second tube, and the abutting member is used for abutting the guide portion and moving on the guide portion to drive the installation portion and the second tube to rotate.

In some embodiments, the abutting member is rotatably disposed on the mounting portion, and the abutting member is configured to abut against the guiding portion and roll on the guiding portion to drive the mounting portion and the second tube to rotate.

In some embodiments, a first engaging portion is formed at one end of the first pipe, and a second engaging portion is formed at one end of the second pipe, and the second engaging portion is engaged with the first engaging portion to connect the first pipe and the second pipe.

In some embodiments, the first engaging portion is formed with a first concave-convex structure, and the second engaging structure is formed with a second concave-convex structure that cooperates with the first concave-convex structure to connect the first pipe and the second pipe.

In some embodiments, a guide groove is formed on a surface of the guide portion, and the guide groove is used for cooperating with the abutting portion to guide the movement of the abutting portion, so as to drive the second pipe to rotate to the preset position.

The household appliance of the embodiment of the present invention includes the nozzle assembly of any one of the above embodiments.

In the household appliance according to the embodiment of the present invention, the guide structure may guide the second pipe to rotate to a preset position to be accurately connected with the first pipe in a case where the second pipe moves toward the first pipe. So, even when first pipe and second pipe are separated, the second pipe has taken place the deflection, and at the in-process of reconnecting, guide structure also can lead so that it rotates to predetermineeing the position to the second pipe to make second pipe and first pipe counterpoint the accuracy in order to realize being connected.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a home appliance of an embodiment of the present invention;

fig. 2 is another structural schematic diagram of the home appliance of the embodiment of the present invention;

fig. 3 is still another configuration diagram of the home appliance of the embodiment of the present invention;

fig. 4 is an enlarged schematic view at IV of the household appliance in fig. 3;

fig. 5 is still another structural schematic diagram of the home appliance of the embodiment of the present invention;

fig. 6 is an enlarged schematic view at VI of the household appliance in fig. 5;

FIG. 7 is a partial schematic structural view of a spout assembly according to an embodiment of the present invention;

fig. 8 is a schematic sectional view of a partial structure of a spout assembly of an embodiment of the present invention;

FIG. 9 is another partial schematic structural view of a spout assembly according to an embodiment of the present invention;

fig. 10 is another sectional view schematically showing a partial structure of the spout assembly according to the embodiment of the present invention.

Description of the main element symbols:

a household appliance 1000;

the nozzle assembly 100, the first tube 10, the first nozzle 11, the first engaging portion 12, the first concave-convex structure 121, the water inlet 13, the second tube 20, the second nozzle 21, the second engaging portion 22, the second concave-convex structure 221, the guide structure 30, the guide portion 31, the inclined surface 311, the limiting groove 312, the protrusion 313, the arc surface 314, the first end 315, the second end 316, the guide channel 317, the opening 318, the abutting portion 32, the mounting portion 321, the abutting member 322, and the sealing member 40;

cavity 200, carrier assembly 300, interior water pipe 400, fixed subassembly 500.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 6, a nozzle assembly 100 according to an embodiment of the present invention may be used in a household appliance 1000, and the nozzle assembly 100 includes a first tube 10, a second tube 20 and a guide structure 30, wherein the second tube 20 is capable of moving relative to the first tube 10 toward the first tube 10 to be connected to the first tube 10. A guide structure 30 is installed at the first pipe 10 and the second pipe 20, and the guide structure 30 serves to guide the second pipe 20 to rotate to a preset position a (see fig. 6) to be connected with the first pipe 10 in case the second pipe 20 moves toward the first pipe 10.

In the nozzle assembly 100 according to the embodiment of the present invention, the guide structure 30 may guide the second tube 20 to rotate to the preset position a to be accurately connected with the first tube 10 in a state that the second tube 20 moves toward the first tube 10. In this way, even if the second pipe 20 is deflected when the first pipe 10 and the second pipe 20 are separated, the guide structure 30 can guide the second pipe 20 to rotate to the preset position a during the reconnection, so that the second pipe 20 is accurately aligned with the first pipe 10 to realize the connection.

Specifically, the household appliance 1000 includes, but is not limited to, a dishwasher, a steam sterilizer, a laundry treatment device, and the like. In the present embodiment, the household appliance 1000 will be described as an example of a dishwasher. Referring to fig. 1, in an example, the household appliance 1000 may further include a cavity 200 and a carrier assembly 300, the carrier assembly 300 and the cavity 200 can move relatively, specifically, the cavity 200 may include an inner container 201 and a door (not shown), the carrier assembly 300 is slidably connected to the inner container 201 and can slide back and forth relative to the inner container 201 to slide out of or into the inner container 201, and the carrier assembly 300 may be a basket of a dishwasher. The first tube 10 is installed in the chamber 200 and can rotate with respect to the chamber 200, in the embodiment of the present invention, the first tube 10 is installed in the inner wall of the liner 201, the second tube 20 is installed in the carrier assembly 300 and can rotate with respect to the carrier assembly 300, and the second tube 20 can rotate following the rotation of the first tube 10 when the first tube 10 and the second tube 20 are connected. It is understood that the first pipe 10 may be installed at the inner wall of the door body in other embodiments.

Taking the dishwasher of the household appliance 1000 as an example, when tableware is needed to be washed, the tableware is put into the bearing assembly 300 and then slides into the inner container 201, in this process, the bearing assembly 300 drives the second tube 20 to move, the guide structure 30 guides the second tube 20 so that the second tube 20 rotates to the preset position a, then the second tube 20 is connected with the first tube 10, and water flow can enter the second tube 20 through the first tube 10. Meanwhile, the second tube 20 can rotate along with the first tube 10, so that the first tube 10 can be driven to rotate to drive the second tube 20 to rotate, and further the tableware in the bearing assembly 300 can be cleaned in multiple directions.

In addition, referring to fig. 2, in the embodiment of the present invention, the wall of the first tube 10 is opened with a first nozzle 11, the wall of the second tube 20 is opened with a second nozzle 21, and the first nozzle 11 and the second nozzle 21 are used for injecting a medium such as water or gas for treating the object, such as cleaning, disinfecting, or drying.

In the embodiment of the present invention, the movement of the second pipe 20 toward the first pipe 10 may be specifically understood as the movement of the second pipe 20 toward the first pipe 10 along the axial direction X of the first pipe 10. In the embodiment of the present invention, the axis of the first pipe 10 coincides with the axis of the second pipe 20 or has an eccentricity within a desired range, that is, the moving direction of the second pipe 20 coincides with the axis of the first pipe 10 or is parallel to the axis of the first pipe 10. It can be understood that the connection of the second pipe 20 and the first pipe 10 is not affected in the case where the eccentricity amount of the axis of the first pipe 10 and the axis of the second pipe 10 is in a desired range. That is, the second pipe 20 can be connected to the first pipe 10 while the second pipe 20 is at the preset position a within a desired eccentric range. Thus, in the case where the first pipe 10 rotates, the second pipe 20 can rotate following the first pipe 10. Further, the above-mentioned "preset position a" may be understood as a position where the second pipe 20 is located in the circumferential direction of the second pipe 20 when the second pipe 20 is accurately coupled and engaged with the first pipe 10, and may also be understood as a position where the second pipe 20 is located in the circumferential direction when the second nozzle holes 21 on the second pipe 20 are aligned with the first nozzle holes 11 on the first pipe 10. Hereinafter, the same or similar descriptions will be understood by reference thereto.

Further, it is understood that, when the guide structure 30 guides the second pipe 20, the second pipe 20 has two movement states, one is moved toward the first pipe 10, and the other is a rotation movement of the second pipe 20 itself to rotate to the preset position a. In addition, it is understood that in the embodiment of the present invention, the second pipe 20 may be just connected to the first pipe 10 when rotated to the preset position a, or may continue to move toward the first pipe 10 to be connected to the first pipe 10 after being guided to rotate to the preset position a by the guide structure 30, and is not limited in particular.

In the embodiment shown in fig. 5 and 6, after the guide structure 30 guides the second pipe 20 to rotate to the preset position a during the movement of the second pipe 20 relative to the first pipe 10, the second pipe 20 continues to move toward the first pipe 10 to be connected to the first pipe 10. It is understood that in the embodiment of the present invention, the second tube 20 may also be moved apart from the first tube 10 to separate the second tube 20 from the first tube 10.

Referring to fig. 3 to 6, in some embodiments, the guiding structure 30 includes a guiding portion 31 and a supporting portion 32, the guiding portion 31 is fixedly connected to the first tube 10, the supporting portion 32 is fixedly connected to the second tube 20, and when the second tube 20 moves toward the first tube 10, the supporting portion 32 is used for supporting the guiding portion 31 and moving on the guiding portion 31 to drive the second tube 20 to rotate to the predetermined position a.

In this way, the abutting portion 32 can abut against the guiding portion 31 and move on the guiding portion 31 to rotate the second pipe 20 to the preset position a, so that the second pipe 20 can be accurately aligned with the first pipe 10 to enable the two pipes to be accurately butted.

Specifically, when the second tube 20 is separated from the first tube 10 and the second tube 20 is not located at the preset position a (as shown in fig. 4), in the process that the second tube 20 moves relative to the first tube 10 in the opposite direction, the abutting portion 32 on the second tube 20 first abuts against the guiding portion 31, the second tube 20 continues to move towards the first tube 10, at this time, the abutting portion 32 moves on the guiding portion 31 to drive the second tube 20 to rotate so as to rotate the second tube 20 to the preset position a, and then, the second tube 20 continues to move towards the first tube 10, so that the second tube 20 and the first tube 10 are connected together (as shown in fig. 6). Fig. 3 and 4 are schematic views of a state where the second tube 20 is not located at the preset position a and the abutting portion 32 on the second tube 20 starts to abut against the guiding portion 32, and fig. 5 and 6 are schematic views of a state where the abutting portion 32 moves on the guiding portion 32 to drive the second tube 20 to rotate to the preset position a and then the second tube 20 is connected with the first tube 10.

Further, referring to fig. 7, in some embodiments, the guiding portion 31 is formed with an inclined surface 311, the inclined surface 311 is inclined upward from the bottom of the guiding portion 31 to a side where the first tube 10 is located, the inclined surface 311 is used for abutting against the abutting portion 32, and the abutting portion 32 can move on the inclined surface 311 to drive the second tube 20 to rotate.

Thus, the inclined surface 311 is inclined toward the side where the first pipe 10 is located, and in the process that the second pipe 20 moves toward the first pipe 10, the abutting portion 32 abuts against the inclined surface 311 and moves on the inclined surface 311, so as to drive the second pipe 20 to rotate, so that the second pipe 20 rotates to the preset position a.

It is understood that, in the present embodiment, the area of the inclined surface 311 is large enough to enable the inclined surface 311 to cover the movement locus of the abutting portion 32 when the second pipe 20 is rotated circumferentially. When the second pipe 20 is not rotated to the preset position a, the abutting portion 32 always abuts on the inclined surface 311 and moves along the inclined surface 311. When the second tube 20 rotates to the predetermined position a, the abutting portion 32 does not drive the second tube 20 to rotate, and the second tube 20 can continue to move along the axial direction of the first tube 10 to connect and join with the first tube 10.

In some embodiments, the inclined surface 311 may have an elliptical shape, and the movement locus of the holding portion 32 on the inclined surface 311 has an elliptical shape.

Specifically, in the present embodiment, the cross-sectional shape of the guide portion 31 is substantially circular, and since the inclined surface 311 is inclined to the side where the first pipe 10 is located, the inclined surface 311 is substantially elliptical. Meanwhile, the motion track of the second tube 20 is along the central axis, so that when the abutting portion 32 abuts against the inclined surface 311, the second tube 20 continues to rotate, and the motion track of the abutting portion 32 on the inclined surface 311 is also substantially elliptical.

In some embodiments, the angle of inclination of the ramp 311 is 40 ° to 60 °. Thus, the inclined plane 311 has a moderate inclination angle, and the abutting portion 32 cannot slide out of the inclined plane 311 in the movement process due to the excessively small inclination angle of the inclined plane 311. Specifically, the inclination angle of the inclined surface 311 may specifically be any value between 40 °, 50 °, 60 °, or 40 ° -60 °. Specifically, the inclination angle is an angle between the inclined surface 311 and the axis of the first pipe 10, and the angle is an acute angle.

Referring to fig. 7 and 8, in some embodiments, the inclined surface 311 forms a limiting groove 312, and the limiting groove 312 is used for limiting the rotation of the second pipe 20 when the second pipe 20 rotates to the preset position a.

Thus, when the abutting portion 32 moves on the inclined surface 311 to drive the second tube 20 to rotate to the preset position a, the limiting groove 312 can limit the abutting portion 32 to rotate, so as to limit the rotation of the second tube 20, so that the second tube 20 is kept in the state of the preset position a, and thus the second tube 20 can be accurately jointed with the first tube 10.

Specifically, in the present embodiment, the abutting portion 32 is fixedly connected to the second tube 20, the second tube 20 can rotate, and when the abutting portion 32 abuts against the inclined surface 311, the abutting portion 32 moves on the inclined surface 311, and the movement track of the abutting portion 32 is substantially circular arc. When the abutting portion 32 moves on the inclined surface 311, the second pipe 20 correspondingly rotates, and when the second pipe 20 rotates to the preset position a, the abutting portion 32 correspondingly rotates to the position of the limiting groove 312, the second pipe 20 continues to move in the opposite direction relative to the first pipe 10, so that the abutting portion 32 is clamped into the limiting groove 312, and the second pipe 20 cannot further rotate and is kept in the state of the preset position a in the circumferential direction of the second pipe 20. In such a case, the second pipe 20 may be connected to the first pipe 10 after moving toward the first pipe 10 for a stroke. It is understood that in some embodiments, the second tube 20 may be connected to the first tube 10 at the same time when the second tube 20 is rotated to the preset position a, and the embodiment is not limited.

Referring to fig. 7 and 8, in some embodiments, the inclined surface 311 is formed with a protrusion 313, the protrusion 313 and the limiting groove 312 are disposed at an interval, and the protrusion 313 is used for abutting against the abutting portion 32 to guide the abutting portion 32 to the inclined surface 311.

In this way, when the second tube 20 moves towards the first tube 10, in some cases, the abutting portion 32 on the second tube 20 first abuts against the protrusion 313, and then the second tube 20 rotates and slides up the inclined surface 311 under the action of the protrusion 313, so as to guide the second tube 20.

Specifically, the inclined surface 311 is substantially elliptical, and the protrusion 313 and the limiting groove 312 may be disposed at an interval of 180 ° with respect to each other. It will be understood that the holding portion 32 is fixed on the second pipe 20, and when the second pipe 20 is separated from the first pipe 10, the second pipe 20 may rotate under the external force or under the action of the holding portion 32 to make the holding portion 32 rotate to the bottom of the second pipe 20 (see fig. 4), i.e. the holding portion 32 rotates 180 °. In this case, when the second tube 20 moves toward the direction of the first tube 10, the abutting portion 32 first abuts against the protrusion 313, and the second tube 20 is driven to rotate by the protrusion 313, and at this time, the abutting portion 32 also rotates correspondingly to slide into the inclined surface 311 to abut against the inclined surface 311 and move on the inclined surface 311, so as to ensure the reliability of the guiding structure 30. Then, when the second tube 20 moves continuously, the abutting portion 32 drives the second tube 20 to rotate gradually by 180 degrees so that the abutting portion 32 rotates to the position of the limiting groove 312 and is clamped in the limiting groove 312, at this time, the second tube 20 is at the preset position a, the second tube 20 stops rotating relative to the first tube 10, and thus the second tube 20 and the first tube 10 are connected and joined together. It is understood that the relative position between the protrusion 313 and the limiting groove 312 may be other situations, and is not limited in particular.

In addition, referring to fig. 7, in some embodiments, a curved surface 314 is formed at the connection position of the protrusion 313 and the inclined surface 311. In this way, the protrusion 313 and the inclined surface 311 are transited by the arc surface 314, so that the abutting portion 32 can slide into the inclined surface 311 more smoothly and stably.

Referring to fig. 7 and 8, in some embodiments, the guiding portion 31 includes a first end 315 facing the second tube 20 and a second end 316 facing the first tube 10, the second end 316 is fixedly connected to the first tube 10, the guiding portion 31 is formed with a tapered guiding channel 317 from the first end 315 to the second end 316, the first end 315 is formed with an opening 318, the opening 318 is communicated with the guiding channel 317, and the guiding channel 317 is used for inserting the second tube 20 to connect to the first tube 10.

As such, during movement of the second tube 20 toward the first tube 10, the second tube 20 may be inserted into the guide channel 317 to guide the second tube 20 into coupling engagement with the first tube 10.

Specifically, in the present embodiment, the guiding portion 31 may be substantially flared, the second end 316 of the guiding portion 31 may be sleeved on the first pipe 10, and the first end 315 forms the inclined surface 311. During the process of moving the second tube 20 to the first tube 10, one end of the second tube 20 can be firstly inserted into the guiding channel 317 through the opening 318, and then the abutting portion 32 on the second tube 20 abuts against the inclined surface 311, so that the second tube 20 rotates during the process of moving to the first tube 10 to guide the second tube 20 to rotate to the preset position a. That is, while the second tube 20 is inserted into the guiding channel 317 and moves in the guiding channel 317, since the abutting portion 32 abuts against the inclined surface 311, the second tube 20 can also rotate in the guiding channel 317 at the same time, so that the second tube 20 rotates to the preset position a, and the second tube 20 and the first tube 10 can be accurately connected together.

It is understood that, in the embodiment of the present invention, the first pipe 10 and the guide portion 31 may be an integral structure or a separate structure, and are not particularly limited. In the embodiment shown in fig. 8, the first tube 10 and the guide portion 31 are of an integral structure.

Referring to fig. 6-8, in some embodiments, the diameter of the opening 318 is greater than the diameter of the first tube 10 and the diameter of the second tube 20.

As such, the diameter of the opening 318 being larger than the diameter of the second tube 20 may enable the second tube 20 to be inserted into the guide channel 317 to enable the second tube 20 to be connectively engaged with the first tube 10.

Specifically, in some cases, due to manufacturing or assembly tolerances, or there may be wobble of the second tube 20 during movement toward the first tube 10, there may be an eccentric distance between the axis of the second tube 20 and the central axis of the guide channel 317, such that the second tube 20 may not be accurately inserted into the guide channel 317. In the present embodiment, the diameter of the opening 318 is larger than that of the second pipe 20, so that the second pipe 20 can be inserted into the guide channel 317 through the opening 318 more accurately even if the second pipe 20 is eccentric, thereby enabling the second pipe 20 to be accurately butted against the first pipe 10.

Referring to fig. 6, in some embodiments, the nozzle assembly 100 further includes a sealing member 40, and the sealing member 40 seals a gap between the second tube 20 and an inner wall of the guide passage 317 in a state where the first tube 10 and the second tube 20 are connected.

As such, in the case where the second pipe 20 and the first pipe 10 are connected, the sealing member 40 may seal a gap between the second pipe 20 and the inner wall of the guide channel 317 to prevent leakage of a medium, such as water or air flow.

Specifically, referring to fig. 8, in the embodiment shown in fig. 8, the first tube 10 and the guiding portion 31 are an integral structure, and the guiding channel 317 is communicated with the first tube 10. The sealing member 40 is disposed on the outer surface of the second tube 20, and when the second tube 20 is inserted into the guide channel 317 and connected to the first tube 10, the sealing member 40 can seal the gap between the second tube 20 and the inner wall of the guide channel 317, so as to prevent the water or air flow in the first tube 10 from leaking out of the connection between the first tube 10 and the second tube 20 and flowing out of the gap between the second tube 20 and the guide channel 317. It is understood that in other embodiments, the sealing member 40 may be disposed at the connection between the first pipe 10 and the second pipe 20, and the sealing member 40 may seal the connection between the first pipe 10 and the second pipe 20 when the second pipe 20 is connected to the first pipe 10. Specifically, the present invention is not limited thereto, and only water leakage can be prevented when the first pipe 10 and the second pipe 20 are connected. The sealing member 40 may be a sealing ring or the like having a sealing function. The sealing member 40 may be made of rubber or silicone.

Referring to fig. 9, in some embodiments, the abutting portion 32 includes a mounting portion 321 and an abutting member 322 mounted on the mounting portion 321, the mounting portion 321 is fixedly connected to the second tube 20, and the abutting member 322 is used for abutting the guiding portion 31 and moving on the guiding portion 31 to drive the mounting portion 321 and the second tube 20 to rotate.

Further, in such an embodiment, the abutting piece 322 is rotatably disposed on the mounting portion 321, and the abutting piece 322 is used for abutting against the guiding portion 31 and rolling on the guiding portion 31 to drive the mounting portion 321 and the second tube 20 to rotate.

Thus, the abutting piece 322 is mounted on the mounting portion 321 and can rotate relative to the mounting portion 321, so that friction generated when the abutting piece 322 moves on the guide portion 31 can be reduced, and the movement of the abutting portion 32 is smoother.

Specifically, in the present embodiment, the retainer 322 may be a ball or a steel ball or the like at least partially disposed in the mounting portion 321 and capable of rotating relative to the mounting portion 321. When the abutting member 322 abuts against the guiding portion 31 and moves on the guiding portion 31, the abutting member 322 can rotate at the same time, so that rolling friction exists between the abutting portion 32 and the guiding portion 31, and compared with sliding friction between the abutting portion 32 and the guiding portion 31, the rolling friction between the two can make the abutting portion 32 move on the guiding portion 31 more smoothly. Of course, it is understood that in some embodiments, the abutting element 322 may also be fixedly installed on the installation portion 321, and the abutting element 322 and the installation portion 321 do not rotate relatively, and the specific arrangement manner is not limited herein.

Referring to fig. 8 and 9, in some embodiments, a first engaging portion 12 is formed at one end of the first pipe 10, a second engaging portion 22 is formed at one end of the second pipe 20, and the second engaging portion 22 is engaged with the first engaging portion 12 to connect the first pipe 10 and the second pipe 20.

In this way, during the process of moving the second pipe 20 to the first pipe 10, the second pipe 20 rotates to the preset position a under the action of the guiding structure 30, and then is clamped with the first clamping part 12 on the first pipe 10 through the second clamping part 22, so that the first pipe 10 and the second pipe 20 are connected together to enable the two to rotate synchronously.

Specifically, referring to fig. 6, 8 and 9, in the present embodiment, when the second tube 20 is rotated to the predetermined position a by the guiding structure 30, the first engaging portion 12 and the second engaging portion 22 can be engaged together. That is, when the second pipe 20 is not located at the preset position a, there may be a mismatch between the first engaging portion 12 and the second engaging portion 22, in which case, the two portions are mutually exclusive, and the second pipe 20 cannot be connected and joined to the first pipe 10. When the second pipe 20 is located at the preset position a, the second pipe 20 can be accurately connected with the first pipe 10, so that inaccurate alignment when the second pipe 20 is connected with the first pipe 10 is prevented.

Further, referring to fig. 8 and 9, in the above embodiment, the first engaging portion 12 is formed with the first concave-convex structure 121, the second engaging portion 22 is formed with the second concave-convex structure 221, and the second concave-convex structure 221 is matched with the first concave-convex structure 121 to connect the first pipe 10 and the second pipe 20.

So, first concave-convex structure 121 and the cooperation of second concave-convex structure 221 can make first pipe 10 and second pipe 20 joint together to make and to drive the synchronous rotation of second pipe 20 when first pipe 10 rotates.

Specifically, referring to fig. 8 and 9, the first concavo-convex structure 121 is formed at one end of the first pipe 10, the first concavo-convex structure 121 includes first protrusions 1211 and first grooves 1212, the first protrusions 1211 and the first grooves 1212 are alternately arranged in the circumferential direction of the first pipe 10, the second concavo-convex structure 221 includes second protrusions 2211 and second grooves 2212, and the second protrusions 2211 and the second grooves 2212 are alternately arranged in the circumferential direction of the second pipe 20. When the second tube 20 is located at the predetermined position a, the first protrusion 1211 corresponds to the second groove 2212, and the second protrusion 2211 corresponds to the first groove 1212, and when the second tube 20 is engaged with the first tube 10, the first protrusion 1211 is inserted into the second groove 2212, and the second protrusion 2211 is inserted into the first groove 1212, so that circumferential fixation of the second tube 20 is achieved, and the first tube 10 can drive the second tube 20 to rotate.

It should be noted that, in the present embodiment, the second pipe 20 may be joined to the first pipe 10 when the second pipe 20 is not located at the preset position a, but the guide structure 30 is provided to ensure that the second pipe 20 is accurately joined to the first pipe 10. In one example, in a case where the second tube 20 is not in the preset position a, the first projection 1211 cannot be inserted into the second groove 2212, the second projection 2211 cannot be inserted into the first groove 1212, or the first projection 1211 corresponds to the second projection 2211, so that the second tube 20 and the first tube 10 cannot be coupled together. That is, in the present embodiment, before the first pipe 10 is connected to the second pipe 20, the second pipe 20 is first guided by the guide structure 30 to rotate to the preset position a, and then the second pipe 20 is engaged with the first pipe 10, and when it is not rotated to the preset position a, the second pipe 20 may be inaccurately engaged with the first pipe 10 or may not be engaged with the first pipe 10. It is understood that, in the present embodiment, the second pipe 20 may be engaged with the first pipe 10 at the same time when the second pipe 20 rotates to the preset position a, or the second pipe 20 may be engaged with the first pipe 10 after moving for a certain distance when the second pipe 20 rotates to the preset position a, and the present invention is not limited in particular.

It is understood that the first concave-convex structure 121 and the second concave-convex structure 221 may have a zigzag shape or a wave shape or other structures having alternately arranged depressions and protrusions.

Furthermore, it is understood that in some embodiments, the first tube 10 and the second tube 20 may be connected in other manners, for example, a clamping structure may be provided on the first tube 10 and the second tube 20, and the two are clamped. For another example, the first pipe 10 and the second pipe 20 are each formed with a fastening portion, and both are fastened by the fastening portions.

In the embodiment of fig. 6, the first tube 10 and the guide portion 31 are integrated, so that when the abutting portion 32 of the second tube 20 slides into the limiting groove 312, the limiting groove 312 limits the second tube 20 from rotating, and one end of the second tube 20 is inserted into the guide channel 317 to communicate with the first tube 10. In this case, the first pipe 10 and the second pipe 20 may not form the engaging portion, that is, the first engaging portion 12 and the second engaging portion 22 may be eliminated, and the first pipe 10 and the second pipe 20 are directly connected in a planar form or indirectly connected through the inside of the guide portion 31. In such an embodiment, when the first pipe 10 rotates, the guide portion 31 also rotates, and the guide portion 31 drives the second pipe 20 to rotate along with the guide portion 31 and the first pipe 10 via the stopper groove 312.

In some embodiments, the surface of the guiding portion 31 may be formed with a guiding groove (not shown) for cooperating with the abutting portion 32 to guide the movement of the abutting portion 32, so as to rotate the second tube 20 to the preset position a.

Thus, when the second tube 20 moves towards the first tube 10, the abutting portion 32 enters the guide groove, and the guide groove guides the abutting portion 32 to move, so that the second tube 20 rotates to the preset position a. It will be appreciated that the provision of the guide groove on the guide portion 31 prevents the abutting portion 32 from slipping out of the guide portion 31 during the movement of the second pipe 20 to ensure the reliability of the guide structure 30.

Specifically, in such an embodiment, a limiting structure may be further formed on the guide portion 31, and the limiting structure is used for limiting the rotation of the second pipe 20 when the second pipe 20 rotates to the preset position a. In this case, the limiting structure may be the limiting groove 312 described in the above embodiment, the limiting groove 312 may be communicated with the guide groove, when the second tube 20 moves towards the first tube 10, the abutting portion 32 moves in the guide groove to drive the second tube 20 to rotate, and when the second tube 20 rotates to the preset position a, the abutting portion 32 slides into the limiting groove 312 along the guide groove, so as to limit the rotation of the second tube 20, so that the second tube 20 is kept at the preset position a, and the second tube 20 can be accurately connected with the first tube 10.

Further, in such an embodiment, the guide portion 31 may be formed with a slope 311, and the slope 311 is recessed downward to form a guide groove having a substantially elliptical shape.

Specifically, the guide portion 31 is substantially circular, the inclined surface 311 is substantially elliptical, and the guide groove is also substantially elliptical in shape and coincides with the center of the ellipse of the inclined surface 311. Thus, when the abutting portion 32 enters the guide groove and slides along the guide groove, the abutting portion 32 can smoothly drive the second tube 20 to rotate.

Referring to fig. 1, a household appliance 1000 according to an embodiment of the present invention includes a chamber 200, a carrier assembly 300 and a nozzle assembly 100 according to any one of the above embodiments, wherein the carrier assembly 300 is capable of moving relative to the chamber 200, a second tube 20 of the nozzle assembly 100 is mounted on the carrier assembly 300 and is capable of rotating relative to the carrier assembly 300, a first tube 10 is mounted on the chamber 200 and is capable of rotating relative to the chamber 200, and the second tube 20 is capable of rotating along with the rotation of the first tube 10 when the first tube 10 and the second tube 20 are connected.

In the household appliance 1000 according to the embodiment of the present invention, the guide structure 30 may guide the second pipe 20 to rotate to the preset position a to be accurately connected with the first pipe 10 in a state that the second pipe 20 moves toward the first pipe 10. In this way, even if the second pipe 20 is deflected when the first pipe 10 and the second pipe 20 are separated, the guide structure 30 can guide the second pipe 20 to rotate to the preset position a during the reconnection, so that the second pipe 20 is accurately aligned with the first pipe 10 to realize the connection.

Specifically, the household appliance 1000 includes, but is not limited to, a dishwasher, a steam sterilizer, a laundry treatment device, and the like. In the present embodiment, the household appliance 1000 will be described as an example of a dishwasher.

Taking a dishwasher as an example, the carrying assembly 300 may be a basket of the dishwasher, the cavity 200 may include an inner container 201 and a door (not shown), the carrying assembly 300 is slidably connected to the inner container 201 and may slide back and forth relative to the inner container 201 to slide out of or into the inner container 201, and the first tube 10 is installed on an inner wall of the inner container 201. It is understood that the first pipe 10 may be installed at the inner wall of the door body in other embodiments.

When the tableware is washed, the tableware is placed in the bearing assembly 300 and then slides into the inner container 201, at this time, the bearing assembly 300 drives the second pipe 20 to move, the guide structure 30 guides the second pipe 20 to enable the second pipe 20 to rotate to the preset position a, then the second pipe 20 is connected with the first pipe 10, and water flow can enter the second pipe 20 through the first pipe 10. Meanwhile, the second tube 20 can rotate along with the first tube 10, so that the first tube 10 is driven to rotate to drive the second tube 20 to rotate, and further the tableware in the bearing assembly 300 is cleaned in multiple directions. It is understood that, when the household appliance 1000 is a steam sterilizing cabinet, the household appliance 1000 may include a steam generator, and steam generated in the steam generator may enter the first and second tubes 10 and 20 and then be sprayed from the spray holes of the first and second tubes 10 and 20 to sterilize articles in the cavity 200 radially at high temperature.

Referring to fig. 1, in some embodiments, the household appliance 1000 includes an inner water pipe 400, the inner water pipe 400 is installed in the cavity 200, the first pipe 10 is communicated with the inner water pipe 400, and the first pipe 10 can rotate relative to the inner water pipe 400.

In this manner, the inner water pipe 400 may supply water to the first pipe 10, so that the first pipe 10 and the second pipe 20 can spray water into the cavity 200 to wash the articles on the bearing assembly 300.

Specifically, in such an embodiment, the first pipe 10 penetrates through the inner water pipe 400 and can rotate relative to the inner water pipe 400, the water inlet 13 is opened on the pipe wall of the first pipe 10, the water inlet 13 is communicated with the inner water pipe 400, and water flow can enter the first pipe 10 through the inner water pipe 400.

Referring to fig. 1, in some embodiments, the household appliance 1000 further includes a fixing assembly 500, the fixing assembly 500 is connected to the carrier assembly 300, and the second pipe 20 is mounted on the fixing assembly 500 and can rotate relative to the fixing assembly 500.

As such, the securing assembly 500 may couple the second tube 20 to the carrier assembly 300 such that the second tube 20 is able to follow the movement of the carrier assembly 300.

Specifically, the fixing assembly 500 may include a fixing frame connected to the bearing assembly 300 and a connecting member disposed on the fixing frame, and the second tube 20 may pass through the connecting member and be capable of rotating relative to the connecting member. The connecting member may be a bearing including an outer ring fixedly connected to the fixing frame and an inner ring fixedly connected to the second pipe 20, so that the second pipe 20 can rotate relative to the bearing assembly 300, so that the second pipe 20 can freely rotate in a case of being separated from the first pipe 10 and can rotate with the rotation of the first pipe 10 in a case of being connected to the first pipe 10.

In the description of the specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention, which is defined by the claims and their equivalents.