Cleaning machine

Abstract

The cleaning machine comprises a water tank, a door body, a spraying arm and a water supply pipeline, the water supply pipeline comprises a transverse part and a vertical part, the transverse part is arranged in the door body, the inner end of the transverse part is communicated with a water inlet, and the outer end of the transverse part is arranged close to the edge of the door body; the vertical part is close to the outer side wall of the water tank, the lower end of the vertical part is a water inlet end, the upper end of the vertical part is a water outlet end close to the top opening of the water tank, and the outer end of the transverse part and the water outlet end of the vertical part are staggered in the horizontal direction and rotationally connected through a connector assembly. According to the water supply pipeline, the rotating matching edge of the door body and the water tank is rotationally connected through the connector assembly, and the transverse part and the vertical part of the water supply pipeline are staggered in the horizontal direction, so that the door body can be opened and closed only through rotation of the connector assembly without deformation of other parts of the pipeline; even if the pipeline is used for a long time, damage caused by local reciprocating bending of the pipeline is avoided, the service life is prolonged, and reliability and sealing performance are good.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a washing machine used for washing tableware, fruits and vegetables. Background Art

[0002] For a sink-type dishwasher, in order to improve the cleaning effect of the back of the tableware, a spray arm can be set on the lower surface of the door body located at the top of the sink to spray downwards and rinse the back of the tableware. The applicant's prior application 202221592429.0 "Door body assembly and washing machine for washing machine" discloses a structure, which includes a door body and a disc-shaped upper spray arm, which is arranged on the lower surface of the door body, and a water guide port connected to the upper spray arm is opened on the top of the door body. The lower surface of the upper spray arm is opened with a first spray hole and a second spray hole. The first spray hole is arranged near the central area of ​​the upper spray arm and is used for spraying downwards, and the second spray hole is arranged near the edge of the upper spray arm and is used for spraying to the circumferential area outside it.

[0003] The above-mentioned disc-shaped upper spray arm usually has a water inlet at the top and is supplied with water through a water supply pipe extending horizontally in the door body. This requires good sealing of the water supply pipe at all locations, and because the door body adopts an upward opening method, the water supply pipe needs to bend continuously at the connection between the door body and the water tank as the door body opens and closes. Long-term use can easily cause the water supply pipe to be damaged at the bend, affecting its use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cleaning machine with high reliability and good sealing performance for water supply pipelines in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A cleaning machine comprises a water tank, a door body, a spray arm and a water supply pipe, wherein the door body is rotatably connected to the top opening of the water tank, the spray arm is arranged under the door body and has a water inlet on the top, and the water supply pipe is used to supply water to the spray arm. The water supply pipe comprises a transverse part and a vertical part, wherein the transverse part is arranged in the door body and the inner end is connected to the water inlet and the outer end is arranged near the edge of the door body, the vertical part is arranged near the outer side wall of the water tank and the lower end is the water inlet end and the upper end is the water outlet end arranged near the top opening of the water tank, the outer end of the transverse part and the water outlet end of the vertical part are staggered in the horizontal direction and the two are rotatably connected through a joint assembly.

[0007] Preferably, the joint assembly includes an adapter and an adapter pipe, wherein the adapter is constrained at the top edge of the water tank and the lower end is connected to the water outlet end of the vertical portion, the first end of the adapter pipe is connected to the outer end of the horizontal portion, and the second end is horizontally rotatably connected to the upper end of the adapter. The adapter pipe is horizontally rotatably connected to the adapter, and the local bending problem of the water supply pipe during the door opening and closing process can be solved only by the horizontal rotation cooperation between the two, without causing damage to the pipe.

[0008] Preferably, the adapter is an L-shaped structure, the transverse section of the adapter is arranged close to the top edge of the sink, and the vertical section passes through the edge of the top of the sink and extends downward, the adapter tube is also an L-shaped structure, the vertical section of the adapter tube is rotatably plugged with the outer end of the transverse section, and the transverse section of the adapter tube is rotatably plugged with the transverse section of the adapter. Such a plug-in rotation structure is simple to produce and assemble, and has good stability during use.

[0009] Preferably, the vertical section of the adapter tube is inserted into the transverse part, and a first sealing ring is sandwiched between the outer wall of the vertical section of the adapter tube and the inner wall of the transverse part. This structure is conducive to improving the sealing performance.

[0010] Preferably, at least part of the vertical section of the transfer tube is formed into a corrugated structure, and the part of the corrugated structure that arches toward the central axis of the transverse part forms a first pit, and the first sealing ring is clamped in the first pit. The above structure facilitates the installation of the first sealing ring.

[0011] Preferably, the transverse section of the adapter tube is inserted into the transverse section of the adapter, and a second sealing ring is sandwiched between the outer wall of the transverse section of the adapter tube and the inner wall of the transverse section of the adapter. This structure is conducive to improving the sealing performance.

[0012] Preferably, at least part of the transverse section of the adapter tube is formed into a corrugated structure, and the part of the corrugated structure that arches toward the central axis of the transverse section of the adapter forms a second pit, and the second sealing ring is clamped in the second pit. The above structure not only facilitates the installation of the second sealing ring, but also reduces the friction surface of the rotational mating, thereby reducing the wear during the rotation process.

[0013] Preferably, the corrugated structure of the adapter tube transverse section is arranged near the end of the adapter tube transverse section, and a sealing sleeve is sandwiched between the outer wall of the adapter tube transverse section and the inner wall of the adapter transverse section, the first end of the sealing sleeve is arranged near the inner end of the corrugated structure on the adapter tube transverse section, and the second end of the sealing sleeve is arranged near the port of the adapter transverse section. Since this is the connection point between the inner and outer water supply pipes of the door body, and it is also the place where several rotations and fits occur during the door body opening and closing process, the sealing sleeve can enhance the sealing here to avoid water leakage.

[0014] Preferably, the top opening of the water tank is provided with an outwardly extending edge, the edge is provided with an opening for the vertical section of the adapter to pass through, the bottom of the transverse section of the adapter is provided with a downwardly extending clamping foot, and correspondingly, the edge is provided with a clamping opening that can be engaged with the clamping foot. The adapter is also provided with a connecting block arranged close to the edge, and a screw passes through the connecting block and the edge to lock and connect the two. The above structure facilitates fixing the adapter to the top of the water tank.

[0015] Preferably, a concave water return area is provided at the bottom of the water tank, in which a water pump for drawing water into the lower end of the water supply pipe is provided, and a water outlet connecting the water outlet of the water supply pump and the lower end of the water supply pipe is opened on the side wall of the water return area.

[0016] Compared with the prior art, the advantages of the utility model are: the water supply pipe of the utility model is rotatably connected by a joint assembly at the rotating matching edge of the door body and the water tank, and the horizontal part and the vertical part of the water supply pipe are misaligned in the horizontal direction, so that the door body only relies on the rotation of the joint assembly during opening and closing, and other parts of the pipe do not need to be deformed. Even if used for a long time, the pipe will not be damaged due to local reciprocating bending, thereby improving the service life, reliability and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the cleaning machine according to the embodiment of the utility model (door open state);

[0018] Figure 2 for Figure 1 Schematic diagram of the back structure;

[0019] Figure 3 for Figure 2 A cross-sectional view of

[0020] Figure 4 for Figure 3 Enlarged view of part A. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 4 As shown, the cleaning machine of this embodiment includes a water tank 1, a door body 2, a spray arm 3 and a water supply pipe 4. One edge of the door body 2 is rotatably connected to one edge of the top opening 11 of the water tank 1. The spray arm 3 is disc-shaped and is arranged under the door body 2. The top has a water inlet 31 and the bottom has a spray hole 32. The water supply pipe 4 is used to supply water to the spray arm 3.

[0023] The water supply pipe 4 of this embodiment includes a transverse portion 41 and a vertical portion 42. The transverse portion 41 is arranged in the door body 2 and the inner end is connected to the water inlet 31, and the outer end is arranged near the edge of the door body 2. The vertical portion 42 is arranged near the outer wall of the water tank 1 and the lower end is the water inlet end, and the upper end is the water outlet end arranged near the top opening 11 of the water tank 1. The outer end of the transverse portion 41 and the water outlet end of the vertical portion 42 are staggered in the horizontal direction and the two are rotatably connected through a joint assembly 5.

[0024] In this embodiment, the joint assembly 5 includes an adapter 51 and an adapter pipe 52. The adapter 51 is constrained at the top edge of the water tank 1 and the lower end is connected to the water outlet end of the vertical portion 52. The first end of the adapter pipe 52 is connected to the outer end of the horizontal portion 41, and the second end is horizontally rotatably connected to the upper end of the adapter 51. The adapter pipe 52 is horizontally rotatably connected to the adapter 51, and the local bending problem of the water supply pipe 4 during the opening and closing of the door body 2 can be solved only by the horizontal rotation cooperation between the two, without causing damage to the pipe.

[0025] The adapter 51 is an L-shaped structure, with the transverse section 511 of the adapter 51 arranged close to the top edge of the sink 1, and the vertical section 512 extending downward through the top edge of the sink 1; the adapter tube 52 is also an L-shaped structure, with the vertical section 521 of the adapter tube 52 rotatingly plugged with the outer end of the transverse portion 41, and the transverse section 522 of the adapter tube 52 rotatingly plugged with the transverse section 511 of the adapter 51. Such a plug-in rotating structure is simple to produce and assemble, and has good stability during use.

[0026] The vertical section 521 of the adapter tube 52 is inserted into the transverse portion 41, and the first sealing ring 10 is sandwiched between the outer wall of the vertical section 521 of the adapter tube 52 and the inner wall of the transverse portion 41. The transverse section 522 of the adapter tube 52 is inserted into the transverse section 511 of the adapter 51, and the second sealing ring 20 is sandwiched between the outer wall of the transverse section 522 of the adapter tube 52 and the inner wall of the transverse section 511 of the adapter 51. This structure is conducive to improving the sealing performance.

[0027] The vertical section 521 of the adapter tube 52 is formed into a corrugated structure a near the end, and the portion of the corrugated structure a that arches toward the central axis of the transverse section 41 forms a first recess 501, in which the first sealing ring 10 is clamped; the above structure facilitates the installation of the first sealing ring 10. The transverse section 522 of the adapter tube 52 is formed into a corrugated structure a near the end, and the portion of the corrugated structure a that arches toward the central axis of the transverse section 511 of the adapter 51 forms a second recess 502, in which the second sealing ring 20 is clamped. The above structure not only facilitates the installation of the second sealing ring 20, but also reduces the friction surface at the rotational mating point, thereby reducing the wear during the rotation process.

[0028] The corrugated structure of the transverse section 522 of the transfer tube 52 is arranged near the end of the transverse section 522 of the transfer tube 52, and a sealing sleeve 30 is sandwiched between the outer wall of the transverse section 522 of the transfer tube 52 and the inner wall of the transverse section 511 of the adapter 51. The first end of the sealing sleeve 30 is arranged near the inner end of the corrugated structure on the transverse section 522 of the transfer tube 52, and the second end of the sealing sleeve 30 is arranged near the port of the transverse section 511 of the adapter 51. Since this is the connection point between the inner and outer water supply pipes 4 of the door body 2, and it is also the place where several rotations and cooperations occur during the opening and closing process of the door body 2, the sealing sleeve 30 can enhance the sealing here to avoid water leakage.

[0029] The top opening 11 of the water tank 1 is provided with an outwardly extending edge 12, and the edge 12 is provided with an opening 121 for the vertical section 512 of the adapter 51 to pass through. The bottom of the transverse section 511 of the adapter 51 is provided with a downwardly extending clamping foot 513, and correspondingly, the edge 12 is provided with a clamping hole 122 that can be engaged with the clamping foot 513. The adapter 51 is also provided with a connecting block 514 arranged close to the edge 12, and a screw passes through the connecting block 514 and the edge 12 to lock and connect the two. The above structure facilitates fixing the adapter 51 to the top of the water tank 1.

[0030] A concave water return area 13 is provided at the bottom of the water tank 1, in which a water pump 6 for drawing water into the lower end of the water supply pipe 4 is provided, and a water inlet 131 connecting the water outlet of the water supply pump 6 and the lower end of the water supply pipe 4 is opened on the side wall of the water return area 13.

[0031] The water supply pipe 4 of the present embodiment is rotatably connected with the rotating matching edge of the door body 2 and the water tank 1 by the joint assembly 5. By making the transverse part 41 and the vertical part 42 of the water supply pipe 4 misaligned in the horizontal direction, it is achieved that during the opening and closing process of the door body 2, only the joint assembly 5 is rotated without the need for deformation of other parts of the pipe. Even if it is used for a long time, the pipe will not be damaged due to local reciprocating bending, thereby improving the service life and having good reliability and sealing.

[0032] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine, comprising a water tank (1), a door body (2), a spray arm (3) and a water supply pipe (4), wherein the door body (2) is rotatably connected to the top opening (11) of the water tank (1), the spray arm (3) is arranged under the door body (2) and has a water inlet (31) on the top, and the water supply pipe (4) is used to supply water to the spray arm (3), characterized in that: The water supply pipe (4) comprises a transverse portion (41) and a vertical portion (42); the transverse portion (41) is arranged in the door body (2) and the inner end is connected to the water inlet and the outer end is arranged near the edge of the door body (2); the vertical portion (42) is arranged near the outer wall of the water tank (1) and the lower end is the water inlet end and the upper end is the water outlet end arranged near the top opening (11) of the water tank (1); the outer end of the transverse portion (41) and the water outlet end of the vertical portion (42) are arranged in a staggered manner in the horizontal direction and the two are rotatably connected via a joint assembly (5).

2. The cleaning machine according to claim 1, characterized in that: The joint assembly (5) comprises an adapter (51) and an adapter tube (52); the adapter (51) is constrained at the top edge of the water tank (1) and the lower end of the adapter is connected to the water outlet end of the vertical part (42); the first end of the adapter tube (52) is connected to the outer end of the horizontal part (41) and the second end is horizontally rotatably connected to the upper end of the adapter (51).

3. The cleaning machine according to claim 2, characterized in that: The adapter (51) is an L-shaped structure, wherein the transverse section of the adapter (51) is arranged close to the top edge of the water tank (1), and the vertical section passes through the top edge of the water tank (1) and extends downward. The adapter tube (52) is also an L-shaped structure, wherein the vertical section of the adapter tube (52) is rotatably plugged into the outer end of the transverse section (41), and the transverse section of the adapter tube (52) is rotatably plugged into the transverse section of the adapter (51).

4. The cleaning machine according to claim 3, characterized in that: The vertical section of the transfer tube (52) is inserted into the transverse portion (41), and a first sealing ring (10) is clamped between the outer wall of the vertical section of the transfer tube (52) and the inner wall of the transverse portion (41).

5. The cleaning machine according to claim 4, characterized in that: At least part of the vertical section of the transfer tube (52) is formed into a corrugated structure, and the part of the corrugated structure that arches toward the central axis of the transverse part (41) forms a first pit (501), and the first sealing ring (10) is clamped in the first pit (501).

6. The cleaning machine according to claim 3, characterized in that: The transverse section of the adapter tube (52) is inserted into the transverse section of the adapter (51), and a second sealing ring (20) is clamped between the outer wall of the transverse section of the adapter tube (52) and the inner wall of the transverse section of the adapter (51).

7. The cleaning machine according to claim 6, characterized in that: At least part of the transverse section of the adapter tube (52) is formed into a corrugated structure, and the part of the corrugated structure that arches toward the central axis of the transverse section of the adapter (51) forms a second pit (502), and the second sealing ring (20) is clamped in the second pit (502).

8. The cleaning machine according to claim 7, characterized in that: The corrugated structure of the transverse section of the adapter tube (52) is arranged near the end of the transverse section of the adapter tube (52), and a sealing sleeve (30) is clamped between the outer wall of the transverse section of the adapter tube (52) and the inner wall of the transverse section of the adapter (51), wherein the first end of the sealing sleeve is arranged near the inner end of the corrugated structure on the transverse section of the adapter tube (52), and the second end of the sealing sleeve (30) is arranged near the port of the transverse section of the adapter (51).

9. The cleaning machine according to any one of claims 2 to 8, characterized in that: The top opening (11) of the water tank (1) is provided with an outwardly extending edge (12), the edge (12) is provided with an opening (121) for the vertical section of the adapter (51) to pass through, the bottom of the transverse section of the adapter (51) is provided with a downwardly extending clamping foot (513), and correspondingly, the edge (12) is provided with a clamping socket (122) that can be engaged with the clamping foot (513).

10. The cleaning machine according to claim 9, characterized in that: The adapter (51) is also provided with a connection block (514) arranged close to the edge (12), and a screw passes through the connection block (514) and the edge (12) to lock and connect the two.

11. The cleaning machine according to any one of claims 1 to 8, characterized in that: The bottom of the water tank (1) is provided with a concave water return area (13), in which a water pump (6) for drawing water into the lower end of the water supply pipe (4) is provided, and a water guide port (131) for connecting the water outlet of the water supply pump (6) and the lower end of the water supply pipe (4) is provided on the side wall of the water return area (13).

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