Spraying arm connecting structure and dish washing machine

Abstract

The utility model belongs to the technical field of dish-washing machines, and discloses a spraying arm connecting mechanism and a dish-washing machine. The spraying arm connecting structure comprises a transmission wheel and a spraying arm, and a through hole is formed in the transmission wheel; the spraying arm comprises a connecting pipe part and a plurality of spraying holes communicated with the connecting pipe part, at least part of the connecting pipe part is inserted into the through hole and clamped with the transmission wheel, the bottom or the side edge of the transmission wheel is connected with the power source to provide power for the spraying arm, water supply to the spraying arm is not affected by the arrangement of the through hole, the water supply structure of the spraying arm is simplified, and the water supply efficiency is improved. The occupied space of the spraying arm connecting structure is reduced, the assembly process is simplified, the disassembly and assembly efficiency is improved, and time and labor cost are saved.

Description

Technical Field

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

[0002] A dishwasher is a common kitchen appliance in modern families, which is used for automatically cleaning kitchen utensils such as tableware and dinner plates. Among them, the spray arm is an important part of the dishwasher, which is responsible for spraying the washing liquid and clean water onto the surface of the tableware to achieve the cleaning effect.

[0003] The connection structure of the spray arm in the existing dishwasher is complex, and the water supply waterway of the spray arm is arranged outside the transmission part of the spray arm, so that the space occupied by the spray arm is large, and it is difficult to disassemble and install, increasing the maintenance cost and time, and bringing inconvenience to users.

[0004] Therefore, there is an urgent need for a spray arm connection structure and a dishwasher to solve the problems in the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a spray arm connection structure and a dishwasher, which simplifies the water supply structure of the spray arm, reduces the space occupied by the spray arm connection structure, simplifies the assembly process, improves the disassembly and assembly efficiency, and saves time and labor costs.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A spray arm connection structure, comprising:

[0008] A transmission wheel, which is provided with a through hole, and the transmission wheel is configured to be in transmission connection with a power source;

[0009] A spray arm, which includes a connecting pipe part and a plurality of spray holes communicated with the connecting pipe part, and at least part of the connecting pipe part is inserted into the through hole and is clamped with the transmission wheel;

[0010] A receiving groove is arranged on the spray arm, and the projection of the transmission wheel along its axis is located in the receiving groove.

[0011] Optionally, one of the outer peripheries of the connecting pipe part is provided with a plurality of hook buckles or a plurality of hook grooves, and the inner wall of the through hole is provided with the other of the plurality of hook grooves or the plurality of hook buckles, and at least part of the hook buckle is clamped in the corresponding hook groove.

[0012] Optionally, one of the plurality of hook buckles is an anti-fooling hook buckle, the width of the anti-fooling hook buckle is greater than the widths of the other hook buckles, one of the plurality of hook grooves is an anti-fooling hook groove, the width of the anti-fooling hook groove is greater than the widths of the other hook grooves, and at least part of the anti-fooling hook buckle is clamped in the anti-fooling hook groove.

[0013] Optionally, the spray arm connection structure further comprises a rotating sleeve, wherein the rotating sleeve is arranged on a side of the transmission wheel away from the spray arm, and the rotating sleeve is screw-connected to the transmission wheel.

[0014] Optionally, the top of the rotating sleeve is provided with a plurality of male buckle plates or one of a plurality of female buckle grooves at intervals along the circumference of the rotating sleeve, and the bottom of the transmission wheel is provided with a plurality of the male buckle plates or another one of the plurality of female buckle grooves, and the male buckle plate is at least partially screwed and clamped in the corresponding female buckle groove.

[0015] Optionally, one of the protrusions or grooves is provided on the male buckle plate, and the other of the protrusions or grooves is provided on the side wall of the female buckle groove, and the protrusion can be at least partially confined in the groove.

[0016] Optionally, an avoidance opening is provided between two adjacent female buckle grooves, and the avoidance opening is configured to avoid the male buckle plate.

[0017] Optionally, the direction in which the male buckle plate is screwed into the female buckle groove is consistent with the rotation direction of the spray arm.

[0018] Optionally, the transmission wheel is a gear or a pulley.

[0019] The utility model aims to provide a dishwasher, which makes the internal structure of the dishwasher more compact and improves the utilization rate of the internal space of the dishwasher.

[0020] To achieve this purpose, the utility model adopts the following technical solutions:

[0021] A dishwasher comprises the spray arm connection structure as described above.

[0022] Beneficial effects:

[0023] The utility model provides a spray arm connection structure, comprising a transmission wheel and a spray arm, wherein the transmission wheel is provided with a through hole; the spray arm comprises a connecting pipe portion and a plurality of spray holes connected with the connecting pipe portion, wherein the connecting pipe portion is at least partially inserted into the through hole and is clamped with the transmission wheel, and the bottom or side of the transmission wheel is connected to a power source to provide power for the spray arm, and the provision of the through hole does not affect the water supply to the spray arm, thus simplifying the water supply structure of the spray arm, reducing the occupied space of the spray arm connection structure, simplifying the assembly process, improving the disassembly and assembly efficiency, and saving time and labor costs.

[0024] This embodiment also provides a dishwasher, including the above-mentioned spray arm connection structure, so that the internal structure of the dishwasher is more compact, and the internal space utilization of the dishwasher is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a schematic diagram of the spray arm connection structure provided by the present utility model;

[0026] Figure 2 It is an exploded view of the spray arm and the transmission wheel provided by the present utility model;

[0027] Figure 3 It is an exploded view of the transmission wheel and the rotating sleeve provided by the present utility model.

[0028] In the figure:

[0029] 100, transmission wheel; 110, through hole; 111, hook groove; 120, female buckle groove; 121, bump; 130, avoidance opening;

[0030] 200, spray arm; 210, connecting pipe part; 220, hook; 221, first guiding inclined surface; 230, spray hole;

[0031] 300, rotating sleeve; 301, confluence port; 310, male buckling plate; 311, groove; 312, second guiding inclined surface. Detailed implementation manners

[0032] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the drawings instead of all the structures.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the top", and "on the top" of the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below the bottom", and "under the bottom" of the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0035] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] This embodiment provides a spray arm connection structure, as Figures 1 - 3 shown. The spray arm connection structure includes a transmission wheel 100 and a spray arm 200. A through hole 110 is provided on the transmission wheel 100. The spray arm 200 includes a connecting pipe portion 210 and a plurality of spray holes 230 communicated with the connecting pipe portion 210. The connecting pipe portion 210 is inserted into the through hole 110 and is clamped with the transmission wheel 100. A receiving groove is provided on the spray arm 200. The projection of the transmission wheel 100 along its axis is located in the receiving groove. The bottom or side of the transmission wheel 100 is connected to a power source to provide power for the spray arm 200. Moreover, the setting of the through hole 110 does not affect the water supply to the spray arm 200, simplifies the water supply structure of the spray arm 200, reduces the occupied space of the spray arm connection structure, simplifies the assembly process, improves the disassembly and assembly efficiency, and saves time and labor costs.

[0037] Optionally, as Figure 2 shown, a plurality of buckles 220 are provided on the outer periphery of the connecting pipe portion 210, and a plurality of buckle grooves 111 are provided on the inner wall of the through hole 110. The number of buckles 220 corresponds to the number of buckle grooves 111 one by one, and at least part of the buckles 220 are clamped in the corresponding buckle grooves 111. Through the cooperation of the buckles 220 and the buckle grooves 111, the spray arm 200 can be quickly assembled on the transmission wheel 100, and the connecting pipe portion 210 of the spray arm 200 can be more firmly fixed on the transmission wheel 100, preventing loosening or falling off caused by vibration or movement, which not only improves the connection stability between the spray arm 200 and the transmission wheel 100.

[0038] In other embodiments, a plurality of buckle grooves 111 are provided on the outer periphery of the connecting pipe portion 210, and a plurality of buckles 220 are provided on the inner wall of the through hole 110. The number of buckles 220 corresponds to the number of buckle grooves 111 one by one, and at least part of the buckles 220 are clamped in the corresponding buckle grooves 111. Through the cooperation of the buckles 220 and the buckle grooves 111, the spray arm 200 can be quickly assembled on the transmission wheel 100, and the connecting pipe portion 210 of the spray arm 200 can be more firmly fixed on the transmission wheel 100, preventing loosening or falling off caused by vibration or movement, which not only improves the connection stability between the spray arm 200 and the transmission wheel 100.

[0039] Optionally, one of the multiple hooks 220 is an anti-foolproof hook 220, the width of the anti-foolproof hook 220 is greater than the width of other hooks 220, one of the multiple hook grooves 111 is an anti-foolproof hook groove 111, the width of the anti-foolproof hook groove 111 is greater than the width of other hook grooves 111, and the anti-foolproof hook 220 is clamped in the anti-foolproof hook groove 111. Specifically, in this embodiment, three hooks 220 and three hook grooves 111 are provided, and the three hooks 220 are defined as the first hook 220, the second hook 220 and the third hook 220, wherein the first hook 220 has the largest width, and the three hook grooves 111 are defined as the first hook groove 111, the second hook groove 111 and the third hook groove 111, wherein the first hook groove 111 has the largest width. During assembly, the first hook 220 is clamped in the first hook groove 111, the second hook 220 is clamped in the second hook groove 111, and the third hook 220 is clamped in the third hook groove 111. The setting of the foolproof structure ensures the foolproof effect during the assembly process of the hook 220, and ensures that the spray arm 200 faces the correct direction after the assembly is completed. In this embodiment, the number of the hook 220 and the hook groove 111 is not specifically limited, and can be adaptively adjusted according to actual installation needs to ensure that the connection between the spray arm 200 and the transmission wheel 100 is more stable.

[0040] Alternatively, if Figure 2 As shown, in order to facilitate the hook 220 to be installed in the hook groove 111, a first guide slope 221 is provided on the side of the hook 220 away from the connecting pipe part 210. Along the direction in which the spray arm 200 is assembled on the transmission wheel 100, the first guide slope 221 gradually approaches the connecting pipe part 210, thereby being able to guide the hook 220 to be correctly assembled in the hook groove 111 during the assembly process, thereby reducing the assembly resistance.

[0041] Alternatively, if Figure 1 and Figure 3 As shown, the spray arm connection structure further includes a rotating sleeve 300, which is arranged on the side of the transmission wheel 100 away from the spray arm 200, and the rotating sleeve 300 is screwed and connected with the transmission wheel 100. The rotating sleeve 300 and the spray arm 200 are respectively arranged at both ends of the transmission wheel 100 to ensure that the spray arm 200 rotates more smoothly, thereby enhancing the stability and reliability of the spray arm connection structure.

[0042] Optionally, the spray arm connection structure further includes a spray seat (not shown in the figure), and the rotating sleeve 300 is rotatably disposed in the spray seat, thereby further improving the rotation stability of the spray arm 200.

[0043] Optionally, a water inlet is provided on the spray seat, a confluence port 301 is provided at the top of the rotating sleeve 300, the connecting pipe portion 210 of the spray arm 200 passes through the through hole 110 of the transmission wheel 100 and abuts against the confluence port 301, and a plurality of channels are provided axially on the rotating sleeve 300. The top of each channel is communicated with the confluence port 301, and the bottom is communicated with the water inlet, so that the cleaning water entering the spray seat from the water inlet can be introduced into the connecting pipe portion 210 of the spray arm 200, and then sprayed out from the spray holes 230 of the spray arm 200 to realize the cleaning of tableware.

[0044] Optionally, as Figure 3 shown, a plurality of male snap plates 310 are provided at intervals along the circumferential direction of the top of the rotating sleeve 300, a plurality of female snap grooves 120 are provided at the bottom of the transmission wheel 100, the number of the male snap plates 310 and the female snap grooves 120 corresponds one by one, and at least part of the male snap plate 310 is screwed and clamped in the corresponding female snap groove 120, ensuring the tight connection between the rotating sleeve 300 and the transmission wheel 100, and realizing the quick disassembly and assembly of the rotating sleeve 300 and the spray arm 200, thus improving the disassembly and assembly efficiency.

[0045] In other embodiments, a plurality of female snap grooves 120 are provided at intervals along the circumferential direction of the top of the rotating sleeve 300, a plurality of male snap plates 310 are provided at the bottom of the transmission wheel 100, and at least part of the male snap plate 310 is screwed and clamped in the corresponding female snap groove 120, ensuring the tight connection between the rotating sleeve 300 and the transmission wheel 100, and realizing the quick disassembly and assembly of the rotating sleeve 300 and the spray arm 200, thus improving the disassembly and assembly efficiency.

[0046] Optionally, as Figure 3 shown, a groove 311 is provided on the male snap plate 310, and a bump 121 is provided on the side wall of the female snap groove 120. The bump 121 can be limited in the groove 311, which can prevent the transmission wheel 100 from loosening or falling off after the transmission wheel 100 is assembled on the rotating sleeve 300, and improve the reliability and stability of the connection.

[0047] In other embodiments, a bump 121 can be provided on the male snap plate 310, and a groove 311 can be provided on the side wall of the female snap groove 120. After the transmission wheel 100 is assembled in place, at least part of the bump 121 can be limited in the groove 311, which can prevent the transmission wheel 100 from loosening or falling off after the transmission wheel 100 is assembled on the rotating sleeve 300, and improve the reliability and stability of the connection.

[0048] Optionally, an avoidance opening 130 is provided between two adjacent female snap grooves 120. The avoidance opening 130 is configured to avoid the male snap plate 310, which can make it more convenient for the male snap plate 310 to be screwed into the female snap groove 120.

[0049] In this embodiment, there are 3 male fasteners 310, 3 female fastener grooves 120 and 3 avoidance openings 130. There is one avoidance opening 130 between two adjacent female fastener grooves 120. Define the 3 male fasteners 310 as the first male fastener 310, the second male fastener 310, and the third male fastener 310 respectively, and the width of the first male fastener 310 is the widest; the 3 female fastener grooves 120 are the first female fastener groove 120, the second female fastener groove 120, and the third female fastener groove 120 respectively, and the width of the first female fastener groove 120 is the widest and equal to the width of the first male fastener 310; the 3 avoidance openings 130 are the first avoidance opening 130, the second avoidance opening 130, and the third avoidance opening 130 respectively, and the width of the first avoidance opening 130 is the widest and equal to the width of the first male fastener 310; during assembly, the first male fastener 310 is inserted into the first avoidance opening 130, the second male fastener 310 is inserted into the second avoidance opening 130, and the third male fastener 310 is inserted into the third avoidance opening 130. Then, rotate the transmission wheel 100 to make the first male fastener 310 screw into the first female fastener groove 120, the second male fastener 310 screw into the second female fastener groove 120, and the third male fastener 310 screw into the third female fastener groove 120 to complete the assembly. The above assembly process can achieve an anti-misassembly effect and ensure that after the transmission wheel 100 is assembled, the spray arm 200 on the transmission wheel 100 faces the correct position.

[0050] Optionally, as Figure 3 shown, the bottom of the male fastener 310 is provided with a second guiding inclined surface 312, and the second guiding inclined surface 312 can guide the male fastener 310 into the female fastener groove 120, reduce the resistance during the assembly process, and improve the assembly efficiency.

[0051] Optionally, the direction in which the male fastener 310 screws into the female fastener groove 120 is the same as the rotation direction of the spray arm 200, which can prevent the connection between the rotating sleeve 300 and the transmission wheel 100 from becoming loose during the rotation of the spray arm 200, and improve the stability of the connection between the transmission wheel 100 and the rotating sleeve 300.

[0052] Optionally, the transmission wheel 100 is a gear, and it can be connected to the output shaft of the driving motor through the bottom of the gear; or, the teeth on the side of the gear mesh with the teeth of another gear, and the other gear is connected to the output shaft of the driving motor. Through the power transmission of the two gears, power is provided for the spray arm 200. The selection of multiple power supply methods improves the flexibility of the connection structure of the spray arm.

[0053] In other embodiments, the transmission wheel 100 can be a belt pulley, and it can be directly connected to the output shaft of the driving motor through the bottom of the belt pulley; or, the belt pulley is connected to another belt pulley through a transmission belt, and the output shaft of the driving motor is connected to the other belt pulley. Through the power transmission of the two belt pulleys and the transmission belt, power is provided for the spray arm 200.

[0054] This embodiment also provides a dishwasher, including the above-mentioned spray arm connection structure, which makes the internal structure of the dishwasher more compact and improves the utilization rate of the internal space of the dishwasher.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. The spray arm connection structure is characterized by: include: A transmission wheel (100), wherein the transmission wheel (100) is provided with a through hole (110), and the transmission wheel (100) is configured to be transmission-connected to a power source; A spray arm (200), the spray arm (200) comprising a connecting pipe portion (210) and a plurality of spray holes (230) connected to the connecting pipe portion (210), the connecting pipe portion (210) being at least partially inserted into the through hole (110) and being clamped with the transmission wheel (100); The spray arm (200) is provided with a receiving groove, and the projection of the transmission wheel (100) along its axial direction is located in the receiving groove.

2. The spray arm connection structure according to claim 1, characterized in that: The outer periphery of the connecting tube portion (210) is provided with a plurality of hooks (220) or one of the plurality of hook grooves (111), and the inner wall of the through hole (110) is provided with a plurality of the hooks (220) or another of the plurality of the hook grooves (111), and the hooks (220) are at least partially locked in the corresponding hook grooves (111).

3. The spray arm connection structure according to claim 2, characterized in that: One of the multiple hook buckles (220) is an anti-foolproof hook buckle (220), and the width of the anti-foolproof hook buckle (220) is greater than the width of other hook buckles (220); one of the multiple hook grooves (111) is an anti-foolproof hook groove (111), and the width of the anti-foolproof hook groove (111) is greater than the width of other hook grooves (111); and the anti-foolproof hook buckle (220) is at least partially stuck in the anti-foolproof hook groove (111).

4. The spray arm connection structure according to claim 1, characterized in that: The spray arm connection structure further comprises a rotating sleeve (300), wherein the rotating sleeve (300) is arranged on a side of the transmission wheel (100) away from the spray arm (200), and the rotating sleeve (300) is screw-connected to the transmission wheel (100).

5. The spray arm connection structure according to claim 4, characterized in that: The top of the rotating sleeve (300) is provided with a plurality of male buckle plates (310) or one of the plurality of female buckle grooves (120) at intervals along the circumference of the rotating sleeve (300), and the bottom of the transmission wheel (100) is provided with a plurality of male buckle plates (310) or another one of the plurality of female buckle grooves (120), and the male buckle plates (310) are at least partially screwed and clamped in the corresponding female buckle grooves (120).

6. The spray arm connection structure according to claim 5, characterized in that: The male buckle plate (310) is provided with one of the protrusion (121) and the groove (311), and the side wall of the female buckle groove (120) is provided with the other of the protrusion (121) and the groove (311), and the protrusion (121) can be at least partially confined in the groove (311).

7. The spray arm connection structure according to claim 5, characterized in that: An avoidance opening (130) is provided between two adjacent female buckle grooves (120), and the avoidance opening (130) is configured to avoid the male buckle plate (310).

8. The spray arm connection structure according to claim 5, characterized in that: The direction in which the male buckle plate (310) is screwed into the female buckle groove (120) is consistent with the rotation direction of the spray arm (200).

9. The spray arm connection structure according to claim 1, characterized in that: The transmission wheel (100) is a gear or a pulley.

10. A dishwasher, characterized in that It comprises a spray arm connection structure as described in any one of claims 1 to 9.

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