A spray assembly for a dishwasher

Abstract

The utility model discloses a kind of spray assemblies of dish-washing machine, comprising: water conduit, one end is bent downward to form mounting seat;Connector, it is rotationally engaged and fixed on the mounting seat;Spray arm, it is engaged and fixed on the connector;The spray arm has upper arm shell, lower arm shell, the upper arm shell and lower arm shell are surrounded and form spray arm cavity, the connector is equipped with the engaging portion located in the spray arm cavity, engaging structure is equipped between the engaging portion and lower arm shell. Between water conduit and spray arm by connector connection, so that the structure of spray assembly is simple, and assembly is fixed with ease. Mounting seat and connector are rotationally engaged and fixed, can significantly shorten assembly time, improve production efficiency. The engaging portion is located in spray arm cavity, make full use of the space inside spray arm, make overall structure more compact;And it is favorable to increase the protection for engaging portion, can keep better working condition, reduce the possibility of engaging failure due to external factors.

Description

Technical Field

[0001] This utility model belongs to the field of dishwasher technology, specifically relating to a spray assembly for a dishwasher. Background Technology

[0002] A dishwasher is an automated device that automatically cleans bowls, chopsticks, plates, dishes, and other tableware. With the improvement of people's living standards, dishwashers are being used by more and more families. They can reduce the user's labor intensity, improve work efficiency, enhance cleanliness and hygiene, and satisfy the user's desire for a comfortable life. The working principle of a dishwasher is that a motor drives a washing pump to spray washing water under a certain pressure from the spray arms, forming a dense three-dimensional water jet. The spray arms rotate due to the reaction force of the sprayed water, causing the washing water to be evenly sprayed onto the tableware inside the dishwasher, performing a three-dimensional spray rinsing and scrubbing.

[0003] The existing dishwasher spray arms are fitted under the connector of the water inlet pipe and axially locked by a threaded locking cap. This axial locking method with a threaded cap is relatively cumbersome to assemble, requiring multiple rotations and taking a considerable amount of time, thus affecting production efficiency. Disassembly is also difficult when cleaning is needed, and the locking cap is easily damaged. Furthermore, threaded fastening can only be used for spray arms that rotate in one direction. The rotation direction of the spray arm during operation must be the same as the rotation direction during fastening to prevent loosening between the locking cap and the connector. It cannot be used on bidirectional spray arms.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in the prior art by proposing a spray assembly for a dishwasher, which has a simple and compact structure and is easy to assemble and fix.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] A spray assembly for a dishwasher includes:

[0008] The water pipe has one end bent downwards to form a mounting base;

[0009] The connector is rotated and engaged to be fixed on the mounting base;

[0010] The spray arm is engaged and fixed to the connector head;

[0011] The spray arm has an upper arm shell, a lower arm shell, and the upper arm shell and the lower arm shell surround to form a spray arm cavity. The connector is provided with a locking part located in the spray arm cavity, and a locking structure is provided between the locking part and the lower arm shell.

[0012] In some embodiments of this application, the engaging structure has a plurality of claws extending downward along the engaging portion and a locking hole that is vertically through the lower arm housing and matches the claws.

[0013] In some embodiments of this application, an upward-facing groove is provided on the lower arm housing, and the card hole is formed at the bottom of the groove.

[0014] In some embodiments of this application, the engaging portion has an engaging body, a drainage surface located at the upper end of the engaging body for guiding water flow outward and downward circumferentially, and a drainage plate extending outward and downward along the outer side of the drainage surface.

[0015] In some embodiments of this application, the plane at the lower end of the drainage plate is located below the lower end face of the engaging body.

[0016] In some embodiments of this application, the upper arm housing has an assembly port that matches the connector, the connector has a connecting body disposed between the mounting base and the assembly port, and the connecting body has a plurality of connecting plates that extend radially inward, the inner side of the connecting plates being connected to the engaging portion.

[0017] In some embodiments of this application, the mounting base has a seat body extending radially outward and a sealing edge disposed downward along the seat body, the sealing edge being located inside the connecting body; the assembly port has an assembly edge extending upward, the assembly edge being located outside the connecting body.

[0018] In some embodiments of this application, the mounting base has a seat body extending radially outward and a mounting edge extending downward along the seat body; a plurality of rotating slots are provided on the outer side of the mounting edge, a plurality of axially extending and radially deformable locking plates are provided on the connector head, and a locking block extending inward and rotatably mounted into the rotating slot is provided at the upper end of the locking plate.

[0019] In some embodiments of this application, the mounting edge is provided with an outwardly extending bottom wall, a limiting wall that stops at the end of the bottom wall, and a latching protrusion located on the upper side of the bottom wall. The bottom wall, the limiting wall, and the latching protrusion surround and form the rotating slot. The bottom wall has a guide surface that is inclined upward in the rotational mounting direction and a locking surface located between the latching protrusion and the limiting wall.

[0020] In some embodiments of this application, the card protrusion has a first inclined surface and a second inclined surface that are close to each other in an outward direction, the second inclined surface forming the groove wall of the rotating card slot, and the length of the first inclined surface is greater than the length of the second inclined surface.

[0021] In some embodiments of this application, the connector has a connecting body, a retaining edge sleeved on the outside of the connecting body, and an outer extension edge extending outward from the upper end of the retaining edge. The retaining edge has multiple retaining plates and multiple fixing parts disconnected from the retaining plates. An avoidance opening is provided between the retaining plates and the outer extension edge to prevent the retaining plates from deforming outward.

[0022] In some embodiments of this application, the connector further has a connecting edge connecting the connector body and the mounting edge, with the lower end of the mounting edge abutting against the connecting edge.

[0023] In some embodiments of this application, the card edge is configured to match the outer side of the rotating card slot.

[0024] Compared with existing technologies, the advantages and positive effects of this utility model are as follows: The connector between the water inlet pipe and the spray arm simplifies the structure of the spray assembly and facilitates assembly and fixation. The mounting base and connector are fixed by a rotating snap-fit ​​mechanism, which significantly shortens assembly time and improves production efficiency. The snap-fit ​​part is located inside the spray arm cavity, making full use of the internal space of the spray arm, resulting in a more compact overall structure; it also enhances the protection of the snap-fit ​​part, maintaining a better working condition and reducing the possibility of snap-fit ​​failure due to external factors. The snap-fit ​​part being located inside the spray arm cavity facilitates optimized design and integration with the water flow channels inside the spray arm; the shape and position of the snap-fit ​​part can be rationally designed according to the flow characteristics of the water, making the water flow within the spray arm cavity smoother, reducing water flow resistance and turbulence, thereby improving spray efficiency.

[0025] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of one embodiment of the spray assembly of a dishwasher proposed in this utility model;

[0028] Figure 2 for Figure 1 A cross-sectional structural diagram;

[0029] Figure 3 for Figure 2 Enlarged diagram of the middle section;

[0030] Figure 4 for Figure 1 A schematic diagram of an exploded structure;

[0031] Figure 5 This is a structural diagram of the mounting base;

[0032] Figure 6 This is a schematic diagram of the connector structure;

[0033] Figure 7 for Figure 6 A structural diagram from another angle;

[0034] Among them, the spray assembly is 100;

[0035] Water inlet pipe 10; mounting base 11; base body 110; mounting edge 111; rotating slot 1111; bottom wall 1115; guide surface 11151; engaging surface 11152; limiting wall 1116; protrusion 1117; first inclined surface 11171; second inclined surface 11172; sealing edge 112;

[0036] Connector 20; Engaging part 21; Engaging body 211; Drainage surface 2111; Drainage plate 212; Claw 22; Connecting body 25; Connecting plate 26; Claw edge 27; Claw plate 271; Claw block 272; Fixing part 273; Outer edge 28; Clearance opening 281; Connecting edge 29;

[0037] Spray arm 30; upper arm shell 31; assembly port 311; assembly edge 312; lower arm shell 32; locking hole 321; groove 322; spray arm cavity 33. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, with the direction closer to the rotation axis of the spray arm being "inner," and the opposite being "outer." These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0043] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0044] See Figures 1-7 This is an embodiment of a dishwasher spray assembly proposed in this utility model. A dishwasher spray assembly 100 includes: a water inlet pipe 10, a connector 20, and a spray arm 30. One end of the water inlet pipe 10 is bent downwards to form a mounting base 11. The mounting base 11 and the water inlet pipe 10 can be integrally injection molded or are separate structures. The connector 11 is rotatably engaged and fixed on the mounting base 11, and the spray arm 30 is engaged and fixed on the connector 20. The spray arm 30 has an upper arm shell 31, a lower arm shell 32, and the upper arm shell 31 and lower arm shell 32 surround to form a spray arm cavity 33. A engaging portion 21 located within the spray arm cavity 33 is provided on the connector 20, and an engaging structure is provided between the engaging portion 21 and the lower arm shell 32.

[0045] In this embodiment, the connector 20 connects the water inlet pipe 10 and the spray arm 30, simplifying the structure of the spray assembly and facilitating assembly and fixation. The mounting base 11 and connector 20 are fixed by a rotating snap-fit ​​mechanism, significantly shortening assembly time and improving production efficiency. The snap-fit ​​part 21 is located within the spray arm cavity, fully utilizing the internal space of the spray arm for a more compact overall structure; it also enhances protection for the snap-fit ​​part 21, maintaining a good working condition and reducing the possibility of snap-fit ​​failure due to external factors. The snap-fit ​​part 21 is located within the spray arm cavity 33, facilitating optimized design and integration with the water flow channels inside the spray arm; the shape and position of the snap-fit ​​part 21 can be rationally designed according to the water flow characteristics, making the water flow within the spray arm cavity 33 smoother, reducing water flow resistance and turbulence, thereby improving spray efficiency.

[0046] In some embodiments of this application, the engaging structure has multiple claws 22 extending downward along the engaging portion 21, and engaging holes 321 extending vertically through the lower arm housing 32, with the engaging holes 321 matching the claws 32. The structure of the claws 22 and engaging holes 321 is relatively simple, easy to manufacture and process, and can reduce production costs; it also makes the structure of the entire spray assembly more compact, which is beneficial for saving space inside the dishwasher. The cooperation of multiple claws 22 and engaging holes 321 increases the contact area and number of engaging points, making the engagement between the spray arm 30 and the connector 20 more secure. During the operation of the dishwasher, it can better withstand the centrifugal force generated when the spray arm 30 rotates and the impact force of the water flow, preventing the spray arm from loosening or falling off, and improving the stability and reliability of the entire spray assembly. The claw 22 extends downward along the engaging part 21. During installation, simply align the claw 22 with the engaging hole 321 and press it down to complete the engagement. During disassembly, simply apply appropriate external force to pull the claw 22 out of the engaging hole 321. The operation is relatively simple and convenient, without the need for additional tools or complicated procedures. This facilitates the production and assembly process and also makes it easier for users to disassemble the spray arm 30 during the later maintenance and upkeep of the dishwasher.

[0047] In some embodiments of this application, an upward groove 322 is provided on the lower arm shell 32, and a locking hole 321 is formed at the bottom of the groove 322. After the locking claw 22 is engaged and installed into the locking hole 321, the lower end of the locking claw 22 does not protrude out of the groove 322.

[0048] In some embodiments of this application, the engaging part 21 has an engaging body 211, the upper end of which is a drainage surface 2111, used to guide the water flow outward and downward in a circumferential direction. The water flow entering the spray chamber 33 from the drainage pipe 10 impacts the engaging part 21 and then flows along the drainage surface 2111; this avoids the water flow directly impacting the inside of the spray arm 30 and causing turbulence, improves the utilization efficiency of the water flow, and allows the water flow to be more evenly distributed in the spray chamber 33, thereby enhancing the spraying effect. A drainage plate 212 is provided extending outward and downward along the outer side of the drainage surface 2111 to further guide the water flow, extend the path of the water flow, and allow the water flow to obtain higher speed and energy in the spray chamber 33.

[0049] In some embodiments of this application, the plane at the lower end of the diversion plate 212 is located below the lower end face of the engaging body 211. The diversion plate 212 is funnel-shaped and is an annular arc plate. The lower end of the diversion plate 212 is lower than the lower end face of the engaging body 211, which allows the water flow to obtain a longer path and a greater drop during the downward diversion process, further accelerating the water flow and enhancing the scouring force of the water flow. The diversion plate 212 is arranged around the outside of the engaging body 211, and the lower end of the diversion plate 212 can first contact the lower arm shell 32 to avoid contact between the engaging body 211 and the lower arm shell 32, thereby reducing the impact on the engaging body 211.

[0050] In some embodiments of this application, the upper arm housing 31 has an assembly port 311 that matches the connector 20. The connector 20 has a connecting body 25 located between the mounting base 11 and the assembly port 311. Multiple connecting plates 26 extend radially inward on the connecting body 25. The inner sides of the connecting plates 26 are connected to the engaging portion 21. The multiple connecting plates 26 are spaced apart circumferentially. The radial inward extension of the multiple connecting plates 26 to the engaging portion 21 forms a stable structure with multiple connection points between the connecting body 25 and the engaging portion 21. During dishwasher operation, this effectively withstands the centrifugal force generated by the rotation of the spray arm 30 and the impact force of the water flow, ensuring the stable operation of the spray system. The radial inward extension design of the connecting plates 26 ensures connection strength while fully utilizing the internal space of the connector 20, eliminating the need for additional complex connection structures or excessive external space.

[0051] In some embodiments of this application, the mounting base 11 has a radially outwardly extending base body 110 and a sealing edge 112 disposed downwardly along the base body 110, the sealing edge 112 being located inside the connecting body 25. The assembly port 311 has an upwardly extending assembly edge 312, the assembly edge 312 being located outside the connecting body 25. The sealing edge 112, the connecting body 25, and the assembly edge 312 form a nested structure from top to bottom and from inside to outside. In the direction of water flow, the nesting from inside to outside helps to ensure sealing. The nesting from inside to outside in the direction of water flow conforms to the movement characteristics of water flow and can better prevent water infiltration. When water flow impacts the connection part, the nested structure can guide the water flow along a specific direction, preventing water from seeping into the connection gap and protecting the sealing performance. The dishwasher will generate a certain amount of vibration during operation, and this nested structure has a certain elasticity and buffering capacity. Under the action of vibration, the relative positions between the components may change slightly, but the nested structure can adapt to this change through its own deformation, still maintaining a good sealing effect. This nested structure achieves a good seal while making reasonable use of the space at the connection points, making the entire structure more compact.

[0052] In some embodiments of this application, the mounting base 11 has a seat body 110 extending radially outward and a mounting edge 111 extending downward along the seat body 110. The mounting edge 111 is spaced out on the outside of the sealing edge 112. Multiple rotating slots 1111 are provided on the outside of the mounting edge 111. Multiple axially extending and radially deformable retaining plates 271 are provided on the connector 20. An inwardly extending retaining block 272 is provided at the upper end of the retaining plate 271, and the retaining block 272 can be rotatably installed into the rotating slot 1111. This allows the connector 20 to be rotatably engaged and installed onto the mounting base 11. The cooperation between the rotating slot 1111 and the retaining block 271 provides precise positioning for the connector 20 during installation, ensuring it is accurately installed in the designated position. After installation, the multiple retaining plates 271 cooperate with the rotating slots 1111 to provide fastening force from multiple directions, firmly engaging the connector 20 onto the mounting base 11, effectively resisting external forces such as vibration and water flow impact generated during dishwasher operation, and ensuring the reliability of the connection. The card plate 271 can be radially deformed, allowing it to adapt to certain errors and deformations during installation and disassembly, reducing the requirements for component machining accuracy and thus reducing production costs; by deforming and engaging into the rotating slot 1111, the engagement is ensured to be firm.

[0053] In some embodiments of this application, the mounting edge 111 is provided with an outwardly extending bottom wall 1115, a limiting wall 1116 abutting at the end of the bottom wall 1115, and a latching protrusion 1117 located on the upper side of the bottom wall 1115; the bottom wall 1115, the limiting wall 1116, and the latching protrusion 1177 surround to form a rotating latching groove 1111. The bottom wall 115 has a guide surface 11151 inclined upward in the rotational mounting direction, and a locking surface 11152 located between the latching protrusion 1117 and the limiting wall 1116. The latching block 272 moves along the inclined surface by rotating along the bottom wall 1115, and the deformation of the latching plate 271 causes the latching block 272 to pass through the latching protrusion 1117 and enter the rotating latching groove 1111. The bottom wall 1115 is inclined upward in the rotational mounting direction, providing clear guidance for the rotational mounting of the latching block 272. During rotation, the locking block 272 can move gradually along the inclined surface of the bottom wall 1115, facilitating the installer to accurately guide the locking plate to the correct position and ensuring that the connector 20 can be accurately installed on the mounting base 11, thus improving installation accuracy and consistency. When the locking block 272 enters the rotating slot 1111 due to the deformation of the locking plate 271, the limiting wall 1116 effectively prevents the locking block 272 from continuing to move, preventing it from dislodging from the slot due to vibration, external forces, or other factors during dishwasher operation. The engagement between the locking protrusion 1117 and the locking block 272 also increases the friction and tightening force of the connection, making the connection between the connector 20 and the mounting base 11 more stable and ensuring reliable connection. The card plate 271 can deform radially, allowing it to undergo a certain elastic deformation when passing through the card protrusion 1117, so that the card block 272 can smoothly enter the rotating card slot 1111. This allows for a certain dimensional error during component manufacturing and installation, reducing the strict requirements for machining accuracy. At the same time, it can also adapt to the slight deformation of components caused by temperature changes, mechanical vibrations and other factors during dishwasher operation, ensuring the stability and normal operation of the connection structure.

[0054] In some embodiments of this application, the latching protrusion 1117 has a first inclined surface 11171 and a second inclined surface 11172 that are close to each other in an outward direction. The second inclined surface 11172 forms the groove wall of the rotating latching groove 1111. The length of the first inclined surface 11171 is greater than the length of the second inclined surface 11172. When the latching block 272 is installed, the longer first inclined surface 11171 can provide a wider and smoother guide path, reducing the difficulty of installing the latching block 272 and facilitating the installation of the latching block 272 and the stability after engagement. The second inclined surface 11172, as the groove wall of the rotating latching groove, has a larger inclination angle. After the latching block 272 is engaged in the latching groove 1111, the second inclined surface 11172 can limit the latching block 272 from the side, so that the latching block fits tightly in the latching groove.

[0055] In some embodiments of this application, the connector 20 has a connecting body 25, a retaining edge 27 sleeved on the outside of the connecting body 25, and an outer extension edge 28 extending outward from the upper end of the retaining edge 27. The retaining edge 27 has multiple retaining plates 271 and multiple fixing parts 273 disconnected from the retaining plates 271. A relief opening 281 is provided between the retaining plates 271 and the outer extension edge 28 to prevent the retaining plates 271 from deforming outward. The retaining edge 27 is matched with the outer side of the rotating retaining groove 1111, which helps to form a better sealing effect between the connector and the mounting base. The retaining edge 27 is an axially extending cylindrical shape, the retaining plates 271 are arc-shaped plates, and the fixing parts 273 are arc-shaped plates.

[0056] In some embodiments of this application, the connector 20 further has a connecting edge 29 connecting the connector body 25 and the retaining edge 27. The connecting edge 29 extends radially, and the lower end of the mounting edge 111 abuts against the connecting edge 29. The connecting edge 29 provides a defined abutment position for the mounting edge 111. During installation, the mounting edge 111 accurately abuts against the connecting edge 29, which helps to achieve precise positioning between the connector 20 and the mounting base 11.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A spray assembly for a dishwasher, characterized in that, include: The water pipe has one end bent downwards to form a mounting base; The connector is rotated and engaged to be fixed on the mounting base; The spray arm is engaged and fixed to the connector head; The spray arm has an upper arm shell, a lower arm shell, and the upper arm shell and the lower arm shell surround to form a spray arm cavity. The connector is provided with a locking part located in the spray arm cavity, and a locking structure is provided between the locking part and the lower arm shell.

2. The spray assembly according to claim 1, characterized in that, The engaging structure has multiple claws extending downward along the engaging portion, and a locking hole that is vertically and horizontally opened on the lower arm housing and matched with the claws; an upward groove is provided on the lower arm housing, and the locking hole is opened at the bottom of the groove.

3. The spray assembly according to claim 1, characterized in that, The engaging part has an engaging body, a flow-guiding surface located at the upper end of the engaging body for guiding water flow outward and downward in a circumferential direction, and a flow-guiding plate extending outward and downward along the outer side of the flow-guiding surface.

4. The spray assembly according to claim 1, characterized in that, The upper arm housing has an assembly port that matches the connector. The connector has a connecting body located between the mounting base and the assembly port. The connecting body has a plurality of connecting plates that extend radially inward. The inner side of the connecting plates is connected to the engaging portion.

5. The spray assembly according to claim 4, characterized in that, The mounting base has a seat body extending radially outward and a sealing edge disposed downward along the seat body, the sealing edge being located inside the connecting body; the assembly port has an assembly edge extending upward, the assembly edge being located outside the connecting body.

6. The spray assembly according to any one of claims 1 to 5, characterized in that, The mounting base has a seat body extending radially outward and a mounting edge extending downward along the seat body; multiple rotating slots are provided on the outer side of the mounting edge, and multiple axially extending and radially deformable locking plates are provided on the connector head, with a locking block extending inward and rotatably installed into the rotating slot at the upper end of the locking plate.

7. The spray assembly according to claim 6, characterized in that, The mounting edge is provided with an outwardly extending bottom wall, a limiting wall that stops at the end of the bottom wall, and a locking protrusion located on the upper side of the bottom wall. The bottom wall, the limiting wall, and the locking protrusion surround and form the rotating locking groove. The bottom wall has a guide surface that is inclined upward in the rotational mounting direction, and a locking surface located between the locking protrusion and the limiting wall.

8. The spray assembly according to claim 7, characterized in that, The card protrusion has a first inclined surface and a second inclined surface that are close to each other in an outward direction. The second inclined surface forms the groove wall of the rotating card slot, and the length of the first inclined surface is greater than the length of the second inclined surface.

9. The spray assembly according to claim 6, characterized in that, The connector has a connecting body, a retaining edge sleeved on the outside of the connecting body, and an outer extension edge extending outward from the upper end of the retaining edge. The retaining edge has multiple retaining plates and multiple fixing parts disconnected from the retaining plates. An avoidance opening is provided between the retaining plates and the outer extension edge to prevent the retaining plates from deforming outward.

10. The spray assembly according to claim 9, characterized in that, The connector also has a connecting edge connecting the connector body and the mounting edge, with the lower end of the mounting edge abutting against the connecting edge.

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