Spraying arm assembly of dish washing machine

Abstract

The utility model discloses a spraying arm assembly of a dish-washing machine, which comprises a water supply pipe, a spraying arm assembly and a spraying arm assembly, the front end and the rear end of the auxiliary spraying arm are each provided with a rotating assembly, the rear end of the auxiliary spraying arm is rotationally connected with the water outlet end of the water supply pipe through the rotating assemblies, and a plurality of water spraying openings are formed in the auxiliary spraying arm; the rear end of the front seat is rotatably connected with the front end of the auxiliary spraying arm through the rotating assembly, so that the front seat is communicated with the auxiliary spraying arm; a connecting assembly is arranged at the position of the lower end of the front seat, the upper end of the main spraying arm is rotatably connected with the lower end of the front seat through the connecting assembly so that the main spraying arm can be communicated with the front seat, and a plurality of spraying openings are formed in the main spraying arm. The dish washing machine is simple in structure, the diversity of spraying cleaning can be enriched, and meanwhile the cleaning effect of the dish washing machine is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic appliance technical field especially relates to a spray arm assembly of dish washer. BACKGROUND

[0002] With the improvement of living standards, more and more families in the market are equipped with dish washer currently, and the domestic dish washer usually achieves the purpose of cleaning the pollutants on tableware under the scouring action of spray water column, in combination with washing consumables, heating and other auxiliary means.

[0003] However, due to the small water pressure of the middle layer waterway in the dish washer, the middle spray arm of the dish washer mostly adopts single circular spray mode, and only has single washing angle and position. SUMMARY

[0004] The utility model aims at at least one of the problems existing in the prior art to some extent, and therefore the utility model provides a spray arm assembly of dish washer, which is simple in structure, can enrich the diversity of spray cleaning, and further improves the cleaning effect of the dish washer.

[0005] The above object is achieved by the following technical solutions:

[0006] A spray arm assembly of dish washer, comprising:

[0007] A water supply pipe, a water inlet end of the water supply pipe being connected in communication with external water supply;

[0008] A sub-spray arm, a rotating assembly being arranged on both ends of the sub-spray arm respectively, the sub-spray arm rear end being rotatably connected with the water outlet end of the water supply pipe through the rotating assembly, and a plurality of water spray openings being formed in the sub-spray arm;

[0009] A front seat, the front seat rear end being rotatably connected with the sub-spray arm front end through the rotating assembly to make the front seat and the sub-spray arm in communication;

[0010] A main spray arm, a connecting assembly being arranged at the lower end position of the front seat, the main spray arm upper end being rotatably connected with the front seat lower end through the connecting assembly to make the main spray arm and the front seat in communication, and a plurality of spray openings being formed in the main spray arm.

[0011] In some embodiments, the rotating assembly comprises a joint, a ball and a chuck, wherein the joint is arranged on both ends of the sub-spray arm respectively and rotatably connected with the sub-spray arm, the joint is rotatably connected with the chuck through the ball at the end away from the sub-spray arm, and the chuck is buckled together with the water outlet end of the water supply pipe or the front seat at the end away from the joint.

[0012] In some embodiments, a bayonet is formed on the rear end of the front seat and the water outlet end of the water supply pipe, respectively, and a fastener is formed on the end of the bayonet away from the joint, and the fastener and the bayonet are buckled together.

[0013] In some embodiments, an inner thread is formed on the front and rear ends of the auxiliary spray arm, respectively, and an outer thread is formed on the end of the joint away from the bayonet, and the outer thread and the inner thread are threadedly connected to connect the joint and the auxiliary spray arm together.

[0014] In some embodiments, a recess is formed on the outer sidewall of the joint, and a groove is formed on the inner sidewall of the bayonet, and the groove and the recess are connected to form a mounting groove, and the ball is arranged in the mounting groove to rotatably connect the joint and the bayonet.

[0015] In some embodiments, the connecting assembly comprises a hollow rotating shaft and a connecting seat, wherein the lower end of the front seat passes through the rotating shaft and is connected with the connecting seat, and the lower end of the rotating shaft passes through the connecting seat and is connected with the main spray arm.

[0016] In some embodiments, a clamping edge is formed on the connecting seat, and a clamping groove is formed on the lower end of the front seat, and the clamping edge and the clamping groove are connected to buckle the front seat and the connecting seat together.

[0017] In some embodiments, a through hole is formed on the connecting seat at the middle position, a clamping table is formed on the upper end of the through hole, a flange is formed on the upper end of the rotating shaft, the rotating shaft is sleeved in the through hole, and the flange abuts against the clamping table.

[0018] In some embodiments, a water passage is formed on the main spray arm, a wing is formed on the edge of the water passage, an opening is formed on the wing, a clamping groove is formed on the bottom wall of the wing, and a clamping edge is formed on the lower end of the rotating shaft, and the clamping edge is clamped in the clamping groove after passing through the opening.

[0019] In some embodiments, a support and a rear seat are further included, wherein the rear end of the support is connected with the water outlet end of the water supply pipe, the lower end of the support is connected with the upper end of the rear seat, and the front end of the rear seat is connected with the rear end of the auxiliary spray arm through the rotating assembly.

[0020] Compared with the prior art, the utility model at least has the following beneficial effects:

[0021] 1、 The spray arm assembly of the dish washing machine has simple structure, can enrich the diversity of spray cleaning, and further improves the cleaning effect of the dish washing machine. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 is a structure diagram of part of the structure of the dishwasher in the embodiment of the present application;

[0024] Figure 2 is an exploded diagram of the spray arm assembly in the embodiment of the present application;

[0025] Figure 3 is Figure 2 is a local enlarged diagram of part A in the embodiment of the present application;

[0026] Figure 4 is Figure 2 is a local enlarged diagram of part B in the embodiment of the present application;

[0027] Figure 5 is a structure diagram of the sub-spray arm in the embodiment of the present application;

[0028] Figure 6 is a sectional view of the rotating assembly in the embodiment of the present application;

[0029] Figure 7 is an exploded diagram of the rotating assembly in the embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the technical solutions claimed by the present application.

[0032] Embodiment:

[0033] As Figures 1 to 7The embodiment shown provides a spray arm assembly of a dishwasher, comprising:

[0034] a water supply pipe, a water inlet end of the water supply pipe being connected to an external water supply;

[0035] a secondary spray arm 2, a rotating assembly 3 being arranged on each of the front and rear ends of the secondary spray arm 2, the rear end of the secondary spray arm 2 being rotatably connected to the water outlet end of the water supply pipe through the rotating assembly 3, and a plurality of water injection ports 21 being formed on the secondary spray arm 2;

[0036] a front seat 4, the rear end of the front seat 4 being rotatably connected to the front end of the secondary spray arm 2 through the rotating assembly 3 so as to connect the front seat 4 to the secondary spray arm 2;

[0037] a primary spray arm 5, a connecting assembly 6 being arranged at a lower end position of the front seat 4, the upper end of the primary spray arm 5 being rotatably connected to the lower end of the front seat 4 through the connecting assembly 6 so as to connect the primary spray arm 5 to the front seat 4, and a plurality of injection ports 51 being formed on the primary spray arm 5.

[0038] In the embodiment, the water inlet end of the water supply pipe is connected to the external water supply, the water outlet end of the water supply pipe is rotatably connected to the rear end of the secondary spray arm 2 through the rotating assembly 3, so that the rear end of the secondary spray arm 2 is connected to the water supply pipe, the front end of the secondary spray arm 2 is rotatably connected to the rear end of the front seat 4 through the rotating assembly 3, so that the front seat 4 is connected to the secondary spray arm 2, the lower end of the front seat 4 is rotatably connected to the upper end of the primary spray arm 5 through the connecting assembly 6, so that the primary spray arm 5 is connected to the front seat 4, when the external water supply passes through the water supply pipe and the secondary spray arm 2 in sequence, part of the washing water in the water supply pipe is sprayed out through the water injection ports 21, at the same time, the secondary spray arm 2 is driven to rotate around the horizontal axis synchronously, in addition, the remaining washing water in the water supply pipe is sequentially sprayed out through the front seat 4, the primary spray arm 5 and the injection ports 51, at the same time, the primary spray arm 5 is driven to rotate around the vertical axis synchronously, since the rotating shafts 61 of the primary spray arm 5 and the secondary spray arm 2 are arranged perpendicularly, the primary spray arm 5 and the secondary spray arm 2 can rotate around the respective rotating shafts 61 freely, so that the lower dish basket is also washed to a certain extent while the dish basket is washed, at the same time, the water amount in the whole water circuit is reduced, which is helpful to reduce the energy consumption and water consumption, so that the effect of energy saving and emission reduction is achieved, the structure is simple, the diversity of spray washing is enriched, and the washing effect of the dishwasher is further improved.

[0039] Further, the rotating assembly 3 comprises a joint 31, a ball 32 and a clamping head 33, the joint 31 is arranged on each of the front and rear ends of the secondary spray arm 2 and is rotatably connected to the secondary spray arm 2, the joint 31 is rotatably connected to the clamping head 33 through the ball 32 at an end away from the secondary spray arm 2, and the clamping head 33 is buckled to the water outlet end of the water supply pipe or the front seat 4 at an end away from the joint 31.

[0040] Preferably, the water outlet end of the water supply pipe and the rear end of the front seat 4 are respectively provided with a bayonet 34, and the bayonet 33 is provided with a fastener 35 on the end away from the joint 31, and the fastener 35 and the bayonet 34 are buckled together.

[0041] Specifically, the front and rear ends of the auxiliary spray arm 2 are respectively provided with an internal thread 22, and the joint 31 is provided with an external thread 36 on the end away from the bayonet 33, and the external thread 36 is threadedly connected with the internal thread 22 to threadedly connect the joint 31 with the auxiliary spray arm 2.

[0042] Further, a recess 37 is recessed on the outer side wall of the joint 31, and a groove 38 is recessed on the inner side wall of the bayonet 33, and the groove 38 is connected with the recess 37 to form a mounting groove, and the ball 32 is arranged in the mounting groove to rotatably connect the joint 31 with the bayonet 33.

[0043] Specifically, it also includes a support 7 and a rear seat 8, wherein the rear end of the support 7 is communicated with the water outlet end of the water supply pipe, and the lower end is communicated with the upper end of the rear seat 8, and the front end of the rear seat 8 is communicated with the rear end of the auxiliary spray arm 2 through the rotating assembly 3.

[0044] In this embodiment, the front and rear ends of the auxiliary spray arm 2 are respectively provided with an internal thread 22, and the joint 31 is provided with an external thread 36 on the end away from the bayonet 33, and the external thread 36 is threadedly connected with the internal thread 22 to threadedly connect the joint 31 with the auxiliary spray arm 2, so that one joint 31 is connected to the front and rear ends of the auxiliary spray arm 2, and more preferably, since the sizes of the front and rear ends of the auxiliary spray arm 2 are consistent, there is no distinction between front and back during assembly, thereby effectively improving the efficiency of production and assembly. Then, the outer side wall of the joint 31 away from the auxiliary spray arm 2 is recessed with a recess 37 along the circumference direction, and the inner side wall of the bayonet 33 close to the joint 31 is recessed with a bayonet slot 41, and the bayonet slot 41 is connected with the recess 37 to form a mounting groove, and the ball 32 is arranged in the mounting groove to rotatably connect the joint 31 with the bayonet 33, so that the friction during rotation is smaller, and secondly, the bayonet 33 is provided with a plurality of fasteners 35 on the end away from the joint 31 along the circumference direction, and a plurality of bayonets 34 are respectively provided on the front end of the rear seat 8 and the rear end of the front seat 4, and the fasteners 35 and the bayonets 34 are buckled together, so that the front end of the rear seat 8 and the bayonet 33 located at the rear end of the auxiliary spray arm 2 are buckled together, and at the same time, the rear end of the front seat 4 and the bayonet 33 located at the front end of the auxiliary spray arm 2 are buckled together, so that the auxiliary spray arm 2 can rotate around the horizontal axis. In addition, in order to further improve the washing effect, mounting surfaces are provided on the left and right sides of the auxiliary spray arm 2 along the water flow direction of the auxiliary spray arm 2, and a plurality of water spray openings 21 are provided on the mounting surfaces, so that the two side water spray openings 21 are centrally symmetrically arranged, and the spray angle of each water spray opening 21 is 180°.

[0045] Further, the connecting assembly 6 comprises a hollow rotating shaft 61 and a connecting base 62, wherein the lower end of the front base 4 penetrates through the rotating shaft 61 and is connected with the connecting base 62, and the lower end of the rotating shaft 61 penetrates through the connecting base 62 and is connected with the main spray arm 5.

[0046] Preferably, a clamping edge 63 is arranged on the connecting base 62, and a clamping groove 41 is concavely arranged at the position of the lower end of the front base 4, and the clamping edge 63 is matched and connected with the clamping groove 41 to buckle the front base 4 and the connecting base 62 together.

[0047] Specifically, a through hole 67 is arranged at the middle position of the connecting base 62, a clamping table 64 is arranged at the edge position of the upper end of the through hole 67, and a flange 65 is protruded at the position of the upper end of the rotating shaft 61, and the rotating shaft 61 is sleeved in the through hole 67, and the flange 65 abuts on the clamping table 64.

[0048] Particularly, a water through hole 52 is arranged on the main spray arm 5, a flange wing 53 is protruded at the edge position of the water through hole 52, an opening 54 is arranged on the flange wing 53, a buckling groove 55 is arranged on the bottom wall of the flange wing 53, and a buckling edge 66 is protruded at the lower end of the rotating shaft 61, and the buckling edge 66 is clamped in the buckling groove 55 after penetrating through the opening 54.

[0049] In the embodiment, since the through hole 67 is arranged at the middle position of the connecting base 62, the clamping table 64 is concavely arranged at the edge position of the upper end of the through hole 67 from the center of the through hole 67 to the outer position of the through hole 67, and the flange 65 is protruded outwardly at the position of the upper end of the rotating shaft 61, and after the rotating shaft 61 penetrates through the through hole 67, the bottom wall of the flange 65 abuts on the top wall of the clamping table 64, so that the rotating shaft 61 is sleeved in the through hole 67, and the rotating shaft 61 is rotatably connected with the connecting base 62. More preferably, the gasket 68 is arranged at the middle position of the bottom wall of the flange 65 and the top wall of the clamping table 64, so as to effectively improve the sealing between the connecting base 62 and the rotating shaft 61.

[0050] Secondly, the clamping edge 63 is protruded on the connecting base 62 from the outer position of the connecting base 62 to the middle position of the connecting base 62, the clamping groove 41 is concavely arranged at the position of the lower end of the front base 4, one end of the clamping groove 41 is arranged in an open manner, and the bottom wall of the clamping groove 41 close to the open end is upwardly protruded to form a limiting portion, the clamping edge 63 enters the clamping groove 41 from the open end of the clamping groove 41, so that the clamping edge 63 is clamped in the clamping groove 41 by the limiting action of the limiting portion, thereby buckling the front base 4 and the connecting base 62 together, and further avoiding the clamping edge 63 and the clamping groove 41 from being separated to improve the stability of the connection between the connecting base 62 and the front base 4.

[0051] In addition, a water passage 52 is formed in the middle of the top wall of the main spray arm 5, a wing 53 is protruded from the edge of the water passage 52 to the middle of the water passage 52, a plurality of openings 54 are formed in the wing 53 in the circumferential direction, a buckle groove 55 is formed in the bottom wall of the wing 53, and a buckle edge 66 is protruded from the lower end of the rotating shaft 61. The buckle edge 66 passes through the openings 54 from top to bottom, and then the main spray arm 5 is driven to rotate by external force so that the buckle edge 66 is clamped in the buckle groove 55, thereby clamping the rotating shaft 61 and the main spray arm 5 together. Since the rotating shaft 61 and the connecting seat 62 are rotatably connected together, the washing water is sprayed outwards through the water supply pipe, the auxiliary spray arm 2, the front seat 4, the rotating shaft 61, the main spray arm 5, and the spray port 51, and at the same time, the main spray arm 5 is synchronously rotated around the vertical axis.

[0052] The above only describes some embodiments of the present application. Those skilled in the art can make some modifications and improvements without departing from the inventive concept, and these modifications and improvements are within the protection scope of the present application.

Claims

1. A spray arm assembly for a dishwasher, characterized in that, Comprise: Water supply pipe, the water supply pipe water inlet end and external water supply are connected; Sub-spray arm (2), a rotating assembly (3) is respectively arranged on the front and rear ends of the sub-spray arm (2), the rear end of the sub-spray arm (2) is rotatably connected with the water outlet end of the water supply pipe through the rotating assembly (3), and a plurality of water injection ports (21) are formed in the sub-spray arm (2); Front seat (4), the rear end of the front seat (4) is rotatably connected with the front end of the sub-spray arm (2) through the rotating assembly (3) so that the front seat (4) is connected with the sub-spray arm (2); Main spray arm (5), a connecting assembly (6) is arranged at the lower end position of the front seat (4), the upper end of the main spray arm (5) is rotatably connected with the lower end of the front seat (4) through the connecting assembly (6) so that the main spray arm (5) is connected with the front seat (4), and a plurality of injection ports (51) are formed in the main spray arm (5).

2. A dish washer spray arm assembly according to claim 1, wherein, The rotating assembly (3) comprises a joint (31), a ball (32) and a chuck (33), wherein the joint (31) is respectively arranged on the front and rear ends of the sub-spray arm (2) and is rotatably connected with the sub-spray arm (2), the joint (31) is rotatably connected with the chuck (33) through the ball (32) at the end away from the sub-spray arm (2), and the chuck (33) is buckled together with the water outlet end of the water supply pipe or the front seat (4) at the end away from the joint (31).

3. A dish washer spray arm assembly according to claim 2, wherein, A bayonet (34) is formed in the rear end of the water outlet end of the water supply pipe and the front seat (4) respectively, a buckle (35) is protruded on the end of the chuck (33) away from the joint (31), and the buckle (35) and the bayonet (34) are buckled together.

4. A dish washer spray arm assembly according to claim 2, wherein, An internal thread (22) is respectively arranged on the front and rear ends of the sub-spray arm (2), an external thread (36) is arranged on the end of the joint (31) away from the chuck (33), and the external thread (36) is threadedly connected with the internal thread (22) so that the joint (31) is threadedly connected with the sub-spray arm (2).

5. A dishmachine spray-arm assembly according to claim 2, wherein, A sink (37) is recessed on the outer side wall of the joint (31), a groove (38) is recessed on the inner side wall of the chuck (33), the groove (38) is connected with the sink (37) to form an installation groove, and the ball (32) is arranged in the installation groove so that the joint (31) is rotatably connected with the chuck (33).

6. A dishmachine spray-arm assembly according to claim 1, wherein, The connecting assembly (6) comprises a hollow rotating shaft (61) and a connecting seat (62), wherein the lower end of the front seat (4) passes through the rotating shaft (61) and is connected with the connecting seat (62), and the lower end of the rotating shaft (61) passes through the connecting seat (62) and is connected with the main spray arm (5).

7. A dish washer spray arm assembly according to claim 6, wherein, A clamping edge (63) is arranged on the connecting seat (62), a clamping groove (41) is recessed at the lower end position of the front seat (4), and the clamping edge (63) and the clamping groove (41) are connected so that the front seat (4) and the connecting seat (62) are buckled together.

8. A dishmachine spray-arm assembly according to claim 6, wherein, A through hole (67) is formed at the middle position of the connecting seat (62), a clamping table (64) is arranged at the edge position of the upper end of the through hole (67), a flange (65) is protruded at the upper end position of the rotating shaft (61), the rotating shaft (61) is sleeved in the through hole (67), and the flange (65) abuts on the clamping table (64).

9. A dishmachine spray-arm assembly according to claim 6, wherein, A water passage (52) is formed on the main spray arm (5), a wing (53) is protruded at the edge position of the water passage (52), an opening (54) is formed on the wing (53), a clamping groove (55) is arranged on the bottom wall of the wing (53), and a clamping edge (66) is protruded at the lower end position of the rotating shaft (61), the clamping edge (66) is clamped in the clamping groove (55) after passing through the opening (54).

10. A dish washer spray arm assembly according to any one of claims 1 to 9, wherein, Further comprising a support (7) and a rear seat (8), wherein the rear end of the support (7) is communicated with the water outlet end of the water supply pipe, the lower end of the support (7) is communicated with the upper end of the rear seat (8), and the front end of the rear seat (8) is communicated with the rear end of the auxiliary spray arm (2) through the rotating assembly (3).

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