Dish-washing machine spraying arm mounting structure and dish-washing machine

Abstract

The utility model discloses a dishwasher spray arm mounting structure and a dishwasher, comprising: a pipe joint connected with a water pipe; the inserting head is arranged on the spraying arm and is inserted into the pipe joint; the fixed joint is rotationally sleeved and fixed on the outer side of the pipe joint; the pipe joint is provided with a plurality of assembly protrusions which extend outwards in the radial direction and are arranged at intervals, the fixed joint is provided with a plurality of assembly edges which extend inwards in the radial direction and are arranged at intervals, and the assembly protrusions are located on the upper sides of the assembly edges. The pipe joint is arranged as an independent component, so that the structure of the inner container is simplified; in addition, by improving the manufacturing precision of the pipe joint, the rotating stability of the spraying arm can be improved, the manufacturing precision of a small part can be improved, and the cost is not increased too much; the universality of the inner container is improved, different mounting assemblies can be arranged, mounting of different spraying arms is achieved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of dishwashers, and in particular relates to a mounting assembly of a spray arm of a dishwasher, and a dishwasher with the mounting assembly. Background Art

[0002] Dishwashers integrate the functions of dishwashing, disinfection, drying and storage. They not only change the traditional manual washing method, but also have the advantages of beautiful appearance, convenient use, time-saving and labor-saving, clean and hygienic, and no special installation required. They are increasingly favored by consumers. The working principle of a dishwasher is to drive the washing pump through a motor to spray the washing liquid from the sprayer under a certain pressure, forming a dense hot water flow in three directions. The sprayer rotates due to the reaction force of the water spray, so that the washing liquid is evenly sprayed onto the tableware in the dishwasher, and the tableware is sprayed and rinsed in a three-dimensional manner.

[0003] Patent 201821201329.4 discloses a dishwasher with a spray arm that rotates stably, including a water inlet on an inner tank, a mounting seat on the inner wall of the inner tank, a docking seat on the spray arm, the lower part of the docking seat being the inlet end of the docking seat, the inlet end of the docking seat being inserted into the mounting seat, and the outer wall of the docking seat and the inner wall of the mounting seat being matched to form a gap, the end of the gap close to the water inlet being the gap inlet, and the dishwasher having a blocking portion to prevent powder from being stuck, and the blocking portion at least partially blocks the gap inlet. By setting an integral mounting seat on the inner wall of the inner tank, the installation with the spray arm is achieved; however, the disadvantages of the above patent are: first, the mounting seat is integrally formed on the inner wall of the inner tank, which makes the structure of the inner tank complex and increases the difficulty of manufacturing; second, when the spray arm rotates, the mounting seat and the docking seat rotate relative to each other, and the structural strength and processing accuracy of the mounting seat need to be ensured, which further increases the process requirements for manufacturing the inner tank; third, the versatility of the inner tank is low, and different inner tanks are required for different docking seats.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] In view of the above-mentioned problems in the prior art, the utility model proposes an installation structure for a dishwasher spray arm, in which the pipe joint is arranged as a separate component, which is conducive to simplifying the structure of the inner tank, increasing the versatility of the inner tank, and reducing the manufacturing cost.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0007] A mounting structure for a dishwasher spray arm, comprising:

[0008] A pipe joint, which is connected to the water pipe;

[0009] A plug connector, which is arranged on the spray arm and plugged into the pipe connector;

[0010] A fixed joint, which is rotatably mounted and fixed on the outside of the pipe joint;

[0011] The pipe joint has a plurality of assembly protrusions extending radially outward and spaced apart, and the fixed joint is provided with a plurality of assembly edges extending radially inward and spaced apart, and the assembly protrusions are located on the upper side of the assembly edges.

[0012] In some embodiments of the present application, the fixing joint is provided with a limiting rib extending upwardly along one end of the assembly edge, so as to limit the installation of the assembly protrusion in place.

[0013] In some embodiments of the present application, an upward positioning rib is provided at one end of the assembly edge away from the limiting rib, and the limiting rib and the positioning rib are arranged on the assembly edge to form a limiting groove for accommodating the assembly protrusion.

[0014] In some embodiments of the present application, a mounting channel for the mounting protrusion to pass through is formed between two adjacent mounting edges.

[0015] In some embodiments of the present application, a locking protrusion located below the assembly protrusion is provided on the pipe joint, and the assembly edge is located between the locking protrusion and the assembly protrusion.

[0016] In some embodiments of the present application, the upper end surface of the locking protrusion is inclined inward in an upward direction.

[0017] In some embodiments of the present application, an installation opening for the pipe joint to pass through is opened on the inner wall of the dishwasher, and the radial dimension of the installation opening matches the radial dimension of the assembly protrusion.

[0018] In some embodiments of the present application, the pipe joint comprises a pipe joint body and a retaining edge extending radially outward from the pipe joint body, the retaining edge is located at the lower side of the installation opening, and the lower end of the fixed joint abuts against the retaining edge.

[0019] In some embodiments of the present application, a plurality of positioning claws extending upwards and used for engaging with the edge of the installation opening are provided on the blocking edge.

[0020] In some embodiments of the present application, a sealing gasket is provided between the retaining edge and the edge of the mounting opening.

[0021] In some embodiments of the present application, the pipe joint has a pipe joint body and a locking edge extending inward along the pipe joint body, and a plurality of claws extending downward are provided at the lower end of the plug joint, and the claws are locked on the lower side of the locking edge.

[0022] In some embodiments of the present application, the fixed joint has a fixed joint body, and a radially arranged water guide port is provided at the lower end of the fixed body.

[0023] Based on the above-mentioned installation structure of a dishwasher spray arm, the utility model also provides a dishwasher with the above-mentioned installation structure, in which the pipe joint is arranged as a separate component, which is beneficial to simplifying the structure of the inner tank, increasing the versatility of the inner tank, and reducing manufacturing costs.

[0024] A dishwasher comprises an inner container and the above-mentioned mounting structure.

[0025] Compared with the prior art, the advantages and positive effects of the utility model are: setting the pipe joint as a separate component is conducive to simplifying the structure of the inner tank; and by improving the manufacturing accuracy of the pipe joint, it is conducive to increasing the stability of the spray arm rotation, and increasing the manufacturing accuracy of a small component, the cost increase is not much; it is conducive to increasing the versatility of the inner tank, and can be equipped with different installation components to achieve the installation of different spray arms, which is conducive to reducing manufacturing costs. By setting the assembly convex and the assembly edge, the rotation fixation of the fixed joint and the pipe joint is achieved, so that the assembly convex is located on the upper side of the assembly edge, which is conducive to increasing the firmness of the fixed joint after fixation.

[0026] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a structural schematic diagram of an embodiment of a mounting structure of a spray arm of a dishwasher proposed by the utility model;

[0029] Figure 2 for Figure 1 A schematic diagram from a middle upwards viewing angle;

[0030] Figure 3 for Figure 2 Schematic diagram of the explosion structure;

[0031] Figure 4 is a structural schematic diagram of a pipe joint;

[0032] Figure 5 It is a structural schematic diagram of a fixed joint;

[0033] Figure 6 It is a cross-sectional structural schematic diagram of the installation structure;

[0034] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the A area in the middle;

[0035] Figure 8 is another cross-sectional structural schematic diagram of the installation structure;

[0036] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of the middle B area;

[0037] Among them, the spray arm 100; the plug connector 110; the claw 120;

[0038] Inner liner 200; mounting opening 210;

[0039] Pipe joint 10; pipe joint body 11; assembly protrusion 12; locking protrusion 13; stop edge 14; positioning claw 15; locking edge 16;

[0040] Fixed joint 20; fixed body 21; water guide port 211; assembly edge 22; limiting rib 221; positioning rib 222; limiting groove 223;

[0041] Sealing ring 30;

[0042] Water pipe 400. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0044] In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the positional relationships shown in the accompanying drawings, with the direction close to the axis of the pipe joint being "inside", and the opposite being "outside". The terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials. Embodiment 1

[0048] See also Figure 1-Figure 9 , is an embodiment of a mounting structure of a dishwasher spray arm proposed by the utility model, a mounting assembly of a dishwasher spray arm is used to realize the assembly of the spray arm 100 in the inner tank 200, Figure 1 The bottom plate of the inner tank 200 is shown in the figure, and other parts of the inner tank 200 are not shown. In this embodiment, the spray arm 100 is installed at the corner of the bottom plate of the inner tank 200, which is conducive to strengthening the cleaning of the inner corner space of the inner tank 200, solving the problem of cleaning dead corners, and ensuring that the dishwasher forms a stable overall cleaning quality. A spray arm must also be installed in the middle of the bottom plate of the inner tank 200, and the installation assembly of the spray arm in the middle can also adopt the same structure as in this embodiment.

[0049] A mounting structure of a spray arm of a dishwasher comprises: a pipe joint 10, a fixed joint 20 and a plug joint 110. The pipe joint 10 is connected to a water pipe 400 and is used to transport washing water to the spray arm 100. A plug joint 110 extending downward is provided on the spray arm 100. The pipe joint 10 is sleeved on the outside of the plug joint 110. The plug joint 110 can be rotatably plugged into the pipe joint 10 to ensure the rotation stability of the spray arm 100. The fixed joint 20 is rotatably sleeved on the outside of the pipe joint 10 to realize the assembly and fixing of the pipe joint 310 to the inner tank 200. The pipe joint 10 has a plurality of assembly protrusions 12 extending radially outward, and the plurality of assembly protrusions 12 are arranged at intervals in the circumferential direction of the pipe joint 10. The fixed joint 20 is provided with a plurality of assembly edges 22 extending radially inward, and the plurality of assembly edges 22 are arranged at intervals in the circumferential direction of the fixed joint 20. The assembly protrusion 12 can be relatively rotatably assembled on the upper side of the assembly edge 22.

[0050] In this embodiment, the pipe joint 10 is provided as a separate component, which is conducive to simplifying the structure of the inner liner 200; and by improving the manufacturing accuracy of the pipe joint 10, it is conducive to increasing the stability of the rotation of the spray arm 100, and increasing the manufacturing accuracy of a small component, which does not increase the cost much; it is conducive to increasing the versatility of the inner liner 200, and can be equipped with different installation components to achieve the installation of different spray arms, which is conducive to reducing the manufacturing cost. By providing the assembly protrusion 12 and the assembly edge 22, the rotation fixation of the fixed joint 20 and the pipe joint 10 is achieved, so that the assembly protrusion 12 is located on the upper side of the assembly edge 22, which is conducive to increasing the firmness of the fixed joint 20 after being fixed.

[0051] In some embodiments of the present application, an installation channel for the assembly protrusion 12 to pass through is formed between two adjacent assembly edges 22; the fixed joint 20 moves from top to bottom close to the pipe joint 10, so that the installation channel corresponds to the upper and lower positions of the assembly protrusion 12; then the fixed joint 20 is moved downward, so that the assembly protrusion 12 moves relatively upward in the installation channel, and when the lower end surface of the assembly protrusion 12 reaches or exceeds the upper end surface of the assembly edge 22, the assembly protrusion 12 can reach the upper side of the assembly edge 22 by rotating the fixed joint 20, thereby realizing the rotational engagement assembly of the assembly protrusion 12 and the assembly edge 22.

[0052] In some embodiments of the present application, a limiting rib 221 extending upwardly from one end of the assembly edge 22 is provided on the fixing joint 20 to limit the installation of the assembly protrusion 12. The upward protrusion height of the limiting rib 221 matches the height of the assembly protrusion 12.

[0053] In some embodiments of the present application, an upward positioning rib 222 is provided at one end of the assembly edge 22 away from the limiting rib 221, and the limiting rib 221 and the positioning rib 222 are surrounded on the assembly edge 22 to form a limiting groove 223 for accommodating the assembly protrusion 12. The positioning rib 222 can form the limiting groove 223, thereby ensuring the stability of the assembly protrusion 12 in the limiting groove 223, preventing the assembly protrusion 12 from falling out, and ensuring the firmness of the fixed joint 20 after being installed on the pipe joint 10.

[0054] In some embodiments of the present application, a locking protrusion 13 is provided on the pipe joint 10 and is located below the assembly protrusion 12, and the assembly edge 22 is located between the locking protrusion 13 and the assembly protrusion 12; the locking protrusion 13 is located on the lower side of the assembly edge 22, which avoids the downward deformation of the assembly edge 22 and ensures the firmness of the fixed joint 20 after being installed on the pipe joint 10. Preferably, the upper end surface of the locking protrusion 13 is inclined inwardly in the upward direction, and the lower end surface of the assembly edge 22 is inclined inwardly in the upward direction. The radial dimension of the assembly protrusion 12 is greater than or equal to the radial dimension of the locking protrusion 13, and a plurality of locking protrusions 13 are arranged at intervals in the circumferential direction of the pipe joint body 11.

[0055] In some embodiments of the present application, a mounting opening 210 is provided on the inner wall of the dishwasher, and the mounting opening 210 is used for the pipe joint 10 to pass through, and the pipe joint 10 is fixed at the mounting opening 210 by the fixing joint 20. The pipe joint 10 passes through the mounting opening 210 from bottom to top, and the radial dimension of the mounting opening 210 is set to match the radial dimension of the assembly protrusion 12 to ensure that the pipe joint 10 passes through the mounting opening 210.

[0056] In some embodiments of the present application, the pipe joint 10 comprises a pipe joint body 11, a retaining edge 14 extending radially outward along the pipe joint body 11, and the retaining edge 14 is located at the lower side of the installation opening 210 to achieve the upward limit of the pipe joint 10. A plurality of positioning claws 15 extending upward are provided on the retaining edge 14, and the positioning claws 15 are deformed radially, and the positioning claws 15 are used to engage with the edge of the installation opening 210. When the pipe joint 10 is installed in the inner liner 200, the upper part of the pipe joint 10 passes through the installation opening 210 upward, and then the positioning claws 15 are pushed by the installation opening 210 to deform radially outward, and reset after the positioning claws 15 pass through the installation opening 210, so that the positioning claws 15 engage with the edge of the installation opening 210, and at this time, the retaining edge 14 is located at the lower side of the inner liner wall at the installation opening 210; the installation positioning of the pipe joint 10 is achieved. Then, the fixing joint 20 is put on the pipe joint 10 from top to bottom, and then the fixing joint 20 is rotated to make the assembly protrusion 12 and the assembly edge 22 cooperate; the lower end of the fixing joint 20 abuts against the stop edge 14 to achieve upward limiting of the pipe joint 10.

[0057] In some embodiments of the present application, a sealing gasket 30 is provided between the edge of the retaining edge 14 and the edge of the installation opening 210. By providing the sealing gasket 30, the lower end of the fixed joint 20 abuts against the retaining edge 14, so that the sealing gasket 30 is squeezed between the retaining edge 14 and the inner liner 200, thereby achieving sealing between the pipe joint 10 and the installation opening 210.

[0058] In some embodiments of the present application, the pipe joint 10 comprises a pipe joint body 11, a clamping edge 16 extending inwardly along the pipe joint body 11, and a plurality of claws 120 extending downwardly are provided at the lower end of the plug joint 110, and the claws 120 are clamped on the lower side of the clamping edge 16. The provision of the claws 120 and the clamping edge 16 is beneficial to the stability of the spray arm 100 after plugging.

[0059] In some embodiments of the present application, the fixed joint 20 has a fixed joint body 21, and a radially arranged water guide port 211 is provided at the lower end of the fixed joint body 21. Water entering between the pipe joint 10 and the fixed joint 20 can flow out through the water guide port 211, and water droplets cannot be retained between the pipe joint 10 and the fixed joint 20. The upper end of the fixed joint body 21 is set to a flat end surface to avoid the risk of water accumulation. Embodiment 2

[0060] This embodiment is a dishwasher having the above-mentioned installation structure of the spray arm. The pipe joint 310 is provided as a separate component, which is beneficial to simplifying the structure of the inner tank 200, increasing the versatility of the inner tank 200, and reducing manufacturing costs.

[0061] See also Figure 1-Figure 9As shown, a dishwasher includes an inner tank 200 and the above-mentioned installation assembly; the installation assembly includes: a pipe joint 10, a fixed joint 20 and a plug joint 110, the pipe joint 10 is connected to the water pipe 400 and is used to transport washing water to the spray arm 100. A plug joint 110 extending downward is provided on the spray arm 100, the pipe joint 10 is sleeved on the outside of the plug joint 110, and the plug joint 110 can be rotatably plugged into the pipe joint 10 to ensure the stability of the rotation of the spray arm 100. The fixed joint 20 is rotatably sleeved on the outside of the pipe joint 10 to realize the assembly and fixation of the pipe joint 310 to the inner tank 200. The pipe joint 10 has a plurality of assembly protrusions 12 extending radially outward, and the plurality of assembly protrusions 12 are arranged at intervals in the circumferential direction of the pipe joint 10. A plurality of assembly edges 22 extending radially inward are provided on the fixed joint 20, and the plurality of assembly edges 22 are arranged at intervals in the circumferential direction of the fixed joint 20. The assembly protrusion 12 can be relatively rotatably assembled on the upper side of the assembly edge 22.

[0062] In this embodiment, the pipe joint 10 is provided as a separate component, which is conducive to simplifying the structure of the inner liner 200; and by improving the manufacturing accuracy of the pipe joint 10, it is conducive to increasing the stability of the rotation of the spray arm 100, and increasing the manufacturing accuracy of a small component, which does not increase the cost much; it is conducive to increasing the versatility of the inner liner 200, and can be equipped with different installation components to achieve the installation of different spray arms, which is conducive to reducing the manufacturing cost. By providing the assembly protrusion 12 and the assembly edge 22, the rotation fixation of the fixed joint 20 and the pipe joint 10 is achieved, so that the assembly protrusion 12 is located on the upper side of the assembly edge 22, which is conducive to increasing the firmness of the fixed joint 20 after being fixed.

[0063] In some embodiments of the present application, an installation channel for the assembly protrusion 12 to pass through is formed between two adjacent assembly edges 22; the fixed joint 20 moves from top to bottom close to the pipe joint 10, so that the installation channel corresponds to the upper and lower positions of the assembly protrusion 12; then the fixed joint 20 is moved downward, so that the assembly protrusion 12 moves relatively upward in the installation channel, and when the lower end surface of the assembly protrusion 12 reaches or exceeds the upper end surface of the assembly edge 22, the assembly protrusion 12 can reach the upper side of the assembly edge 22 by rotating the fixed joint 20, thereby realizing the rotational engagement assembly of the assembly protrusion 12 and the assembly edge 22.

[0064] In some embodiments of the present application, a limiting rib 221 extending upwardly from one end of the assembly edge 22 is provided on the fixing joint 20 to limit the installation of the assembly protrusion 12. The upward protrusion height of the limiting rib 221 matches the height of the assembly protrusion 12.

[0065] In some embodiments of the present application, an upward positioning rib 222 is provided at one end of the assembly edge 22 away from the limiting rib 221, and the limiting rib 221 and the positioning rib 222 are surrounded on the assembly edge 22 to form a limiting groove 223 for accommodating the assembly protrusion 12. The positioning rib 222 can form the limiting groove 223, thereby ensuring the stability of the assembly protrusion 12 in the limiting groove 223, preventing the assembly protrusion 12 from falling out, and ensuring the firmness of the fixed joint 20 after being installed on the pipe joint 10.

[0066] In some embodiments of the present application, a locking protrusion 13 is provided on the pipe joint 10 and is located below the assembly protrusion 12, and the assembly edge 22 is located between the locking protrusion 13 and the assembly protrusion 12; the locking protrusion 13 is located on the lower side of the assembly edge 22, which avoids the downward deformation of the assembly edge 22 and ensures the firmness of the fixed joint 20 after being installed on the pipe joint 10. Preferably, the upper end surface of the locking protrusion 13 is inclined inwardly in the upward direction, and the lower end surface of the assembly edge 22 is inclined inwardly in the upward direction. The radial dimension of the assembly protrusion 12 is greater than or equal to the radial dimension of the locking protrusion 13, and a plurality of locking protrusions 13 are arranged at intervals in the circumferential direction of the pipe joint body 11.

[0067] In some embodiments of the present application, a mounting opening 210 is provided on the inner wall of the dishwasher, and the mounting opening 210 is used for the pipe joint 10 to pass through, and the pipe joint 10 is fixed at the mounting opening 210 by the fixing joint 20. The pipe joint 10 passes through the mounting opening 210 from bottom to top, and the radial dimension of the mounting opening 210 is set to match the radial dimension of the assembly protrusion 12 to ensure that the pipe joint 10 passes through the mounting opening 210.

[0068] In some embodiments of the present application, the pipe joint 10 comprises a pipe joint body 11, a retaining edge 14 extending radially outward along the pipe joint body 11, and the retaining edge 14 is located at the lower side of the installation opening 210 to achieve the upward limit of the pipe joint 10. A plurality of positioning claws 15 extending upward are provided on the retaining edge 14, and the positioning claws 15 are deformed radially, and the positioning claws 15 are used to engage with the edge of the installation opening 210. When the pipe joint 10 is installed in the inner liner 200, the upper part of the pipe joint 10 passes through the installation opening 210 upward, and then the positioning claws 15 are pushed by the installation opening 210 to deform radially outward, and reset after the positioning claws 15 pass through the installation opening 210, so that the positioning claws 15 engage with the edge of the installation opening 210, and at this time, the retaining edge 14 is located at the lower side of the inner liner wall at the installation opening 210; the installation positioning of the pipe joint 10 is achieved. Then, the fixing joint 20 is put on the pipe joint 10 from top to bottom, and then the fixing joint 20 is rotated to make the assembly protrusion 12 and the assembly edge 22 cooperate; the lower end of the fixing joint 20 abuts against the stop edge 14 to achieve upward limiting of the pipe joint 10.

[0069] In some embodiments of the present application, a sealing gasket 30 is provided between the edge of the retaining edge 14 and the edge of the installation opening 210. By providing the sealing gasket 30, the lower end of the fixed joint 20 abuts against the retaining edge 14, so that the sealing gasket 30 is squeezed between the retaining edge 14 and the inner liner 200, thereby achieving sealing between the pipe joint 10 and the installation opening 210.

[0070] In some embodiments of the present application, the pipe joint 10 comprises a pipe joint body 11, a clamping edge 16 extending inwardly along the pipe joint body 11, and a plurality of claws 120 extending downwardly are provided at the lower end of the plug joint 110, and the claws 120 are clamped on the lower side of the clamping edge 16. The provision of the claws 120 and the clamping edge 16 is beneficial to the stability of the spray arm 100 after plugging.

[0071] In some embodiments of the present application, the fixed joint 20 has a fixed joint body 21, and a radially arranged water guide port 211 is provided at the lower end of the fixed joint body 21. Water entering between the pipe joint 10 and the fixed joint 20 can flow out through the water guide port 211, and water droplets cannot be retained between the pipe joint 10 and the fixed joint 20. The upper end of the fixed joint body 21 is set to a flat end surface to avoid the risk of water accumulation.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A mounting structure for a dishwasher spray arm, characterized in that: include: A pipe joint, which is connected to the water pipe; A plug connector, which is arranged on the spray arm and plugged into the pipe connector; A fixed joint, which is rotatably mounted and fixed on the outside of the pipe joint; The pipe joint has a plurality of assembly protrusions extending radially outward and spaced apart, and the fixed joint is provided with a plurality of assembly edges extending radially inward and spaced apart, and the assembly protrusions are located on the upper side of the assembly edges.

2. The mounting structure according to claim 1, characterized in that: The fixing joint is provided with a limiting rib extending upwardly along one end of the assembly edge, so as to limit the assembly protrusion to be installed in place.

3. The mounting structure according to claim 2, characterized in that: An upward positioning rib is provided at one end of the assembly edge away from the limiting rib, and the limiting rib and the positioning rib are arranged on the assembly edge to form a limiting groove for accommodating the assembly protrusion.

4. The mounting structure according to claim 1, characterized in that: The pipe joint is provided with a locking protrusion located below the assembling protrusion, and the assembling edge is located between the locking protrusion and the assembling protrusion.

5. The mounting structure according to claim 4, characterized in that: The upper end surface of the locking protrusion is inclined inwardly in an upward direction.

6. The mounting structure according to any one of claims 1 to 5, characterized in that: An installation opening for the pipe joint to pass through is provided on the inner wall of the dishwasher, and the radial dimension of the installation opening matches the radial dimension of the assembly protrusion.

7. The mounting structure according to claim 6, characterized in that: The pipe joint comprises a pipe joint body and a retaining edge extending radially outward from the pipe joint body, the retaining edge is located at the lower side of the installation opening, and a plurality of positioning claws extending upward and used for engaging with the edge of the installation opening are arranged on the retaining edge.

8. The mounting structure according to any one of claims 1 to 5, characterized in that: The pipe joint comprises a pipe joint body and a clamping edge extending inwardly along the pipe joint body. A plurality of clamping claws extending downwardly are arranged at the lower end of the plug joint, and the clamping claws are clamped at the lower side of the clamping edge.

9. The mounting structure according to any one of claims 1 to 5, characterized in that: The fixed joint has a fixed joint body, and the assembly protrusion is arranged to extend outward along the fixed joint body; a radially arranged water guide port is arranged at the lower end of the fixed joint body.

10. A dishwasher, characterized in that: It comprises an inner liner and the mounting structure according to any one of claims 1 to 9.

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