Cleaning machine

Abstract

The cleaning machine comprises a water tank, a door body, a spraying arm and a water supply pipeline, the upper portion of the water supply pipeline penetrates into the door body from the rear side wall of the door body and extends forwards to be communicated with a water inlet of the spraying arm, the lower portion of the water supply pipeline is close to the outer side wall of the water tank and is vertically arranged below the door body, and the part, penetrating through the door body, of the water supply pipeline is a telescopic pipe. And a positioning assembly capable of positioning the lower end of the telescopic pipe is arranged at the top of the water tank. According to the water supply pipeline, the telescopic pipe structure is adopted at the matching position of the door body relative to the opening switch at the top of the water tank and can automatically stretch out and draw back according to the action requirement of the door body, the positioning assembly is used for restraining the lower end of the telescopic pipe, and a lower supporting point is fixed when the telescopic pipe stretches out and draws back every time; therefore, the telescopic pipe is controlled to generate stable telescopic deformation along with opening and closing of the door body, water supply is prevented from being affected by irregular deformation of the telescopic pipe, and the use reliability of the water supply pipeline is improved.

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 set at the top, and water is supplied to it through a water supply pipe that can be bent at the door body and the top edge of the sink. The water supply pipe can be a bellows. For a sink dishwasher with an upward flip-up door, the bellows will partially contract and expand during the door opening and closing process. If there is no reasonable and effective assembly method for the bellows, the expansion and contraction part of the bellows will be unevenly stressed each time, which may easily cause partial deformation of the bellows or damage the bellows, affecting normal water supply. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cleaning machine which can effectively locate the bending part of the water supply pipeline and thus improve the reliability of the water supply pipeline 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, the water supply pipe is used to supply water to the spray arm, the upper part of the water supply pipe penetrates into the door body from the rear side wall of the door body and extends forward to be connected with the water inlet of the spray arm, the lower part of the water supply pipe is vertically arranged under the door body close to the outer side wall of the water tank, the part of the water supply pipe passing through the door body is a telescopic tube, and a positioning component capable of positioning the lower end of the telescopic tube is provided on the top of the water tank.

[0007] Preferably, an outwardly extending edge is provided at the top edge of the water tank, and an opening is provided on the edge that passes through the edge, and the water supply pipe is arranged through the opening, and the lower end of the telescopic pipe is arranged corresponding to the upper surface of the edge, and the positioning component passes through the opening to clamp the part of the water supply pipe under the telescopic pipe. The above structure can not only position the position under the telescopic pipe, so that the telescopic pipe has a fixed telescopic support each time it is extended and retracted, and maintain the stability of deformation, but also form a seal between the water supply pipe and the water tank to prevent the accumulation of residual water here and cause bacteria to grow.

[0008] Preferably, the positioning assembly includes a positioning sleeve and a positioning ring, the water supply pipe has a water guide section located below the telescopic pipe and having a flat structure, the positioning sleeve is sleeved on the outer periphery of the water guide section, the positioning sleeve is arranged through the opening, and the positioning ring is clamped on the outer periphery of the positioning sleeve and arranged on the lower surface close to the edge. This structure facilitates the positioning of the water supply pipe and the positioning sleeve to be constrained by the positioning ring after the two pass through the opening, and is easy to operate.

[0009] Preferably, the edge is partially sunken at the periphery of the opening to form a supporting edge, the lower part of the positioning sleeve is arranged through the opening, the top edge of the positioning sleeve is provided with a lap edge that can be placed on the supporting edge, and the positioning ring is used to constrain the lower part of the positioning sleeve under the opening.

[0010] Preferably, a sealing gasket is sandwiched between the lower surface of the overlapped edge and the upper surface of the supporting edge. This structure is beneficial to further improve the sealing performance here.

[0011] Preferably, a positioning block extending up and down is convexly provided at the lower part of the outer peripheral wall of the positioning sleeve, and correspondingly, a clearance opening for the positioning block to pass up and down is provided at the inner edge of the opening, and in the assembled state, the positioning ring is clamped at the periphery of the positioning sleeve and constrained between the lower surface of the edge and the upper edge of the positioning block. This structure is conducive to improving the reliability of the positioning ring's restraining effect on the positioning sleeve.

[0012] Preferably, the positioning ring is a U-shaped structure that can slide from one end of the positioning sleeve to surround the periphery of the positioning sleeve, and the outer peripheral wall of the positioning sleeve is provided with a sliding groove arranged along the sliding track of the positioning ring on the corresponding positioning block. This structure makes it easier to operate the positioning ring when constraining the positioning sleeve.

[0013] Preferably, the upper end surface of the positioning block forms a guide surface that gradually tilts upward along the sliding track of the positioning ring, and the lower surface of the positioning ring is provided with a protruding clamping foot that can slide over the guide surface and cooperate with the side wall of the positioning block to limit the position. This structure can further improve the reliability of the positioning ring's positioning effect on the positioning sleeve.

[0014] Preferably, the outer circumference of the water guide section is provided with convex ribs extending in a spiral direction thereof, and the convex ribs are elastically squeezed and sealed with the inner wall surface of the positioning sleeve. This structure can improve the sealing performance between the water supply pipe and the positioning sleeve.

[0015] Preferably, the interior of the spray arm is hollow to form a flow channel connected to the water inlet, a spray hole is provided on the lower surface of the spray arm, and a panel that can surround the spray hole is provided below the spray arm, and jet holes corresponding to the arrangement of the spray holes are provided on the panel, and there is a gap between the water outlet end of the spray hole and the water inlet end of the jet hole, and an air inlet is provided on the edge of the panel for external air to enter the air collecting cavity formed in the panel. According to the Venturi effect, the above structure can use the negative pressure generated when the water flows through the gap to suck air into the water column during the process of spraying the water column, so that bubbles are entrained in the sprayed water column, and the cavitation effect is used to improve the stripping effect of pollutants, increase the effective cleaning time of dishwashing powder, and thus improve the cleaning effect.

[0016] Compared with the prior art, the advantages of the utility model are: the water supply pipe of the utility model adopts a telescopic tube structure at the matching position of the door body relative to the open switch on the top of the sink, which can automatically retract and retract according to the movement needs of the door body, and utilizes a positioning component to constrain the lower end of the telescopic tube, and fix the lower supporting point of the telescopic tube each time it is retracted and retracted, thereby controlling the telescopic tube to undergo stable telescopic deformation with the door body opening and closing, which is beneficial to avoid the influence of irregular deformation of the telescopic tube on water supply, and improves the reliability of the water supply pipe. 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 This is a schematic diagram of the structure of the cleaning machine according to the embodiment of the utility model (door closed);

[0019] Figure 3 This is an exploded assembly diagram of the water tank, positioning components, and water supply pipes of the embodiment of the utility model;

[0020] Figure 4 for Figure 3 Another angle of the structure diagram;

[0021] Figure 5 This is an assembly cross-sectional view of the water tank, the positioning assembly, and the water supply pipe of the embodiment of the utility model;

[0022] Figure 6 It is a cross-sectional view of the spray arm of the embodiment of the utility model. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 6 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. 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. The water supply pipe 4 is used to supply water to the spray arm 3. The upper part of the water supply pipe 4 passes through the door body 2 from the rear side wall and extends forward to be connected with the water inlet 31 of the spray arm 3. The lower part of the water supply pipe 4 is vertically arranged under the door body 2 close to the outer wall of the water tank 1. The part of the water supply pipe 4 passing through the door body 2 is a telescopic tube 41. A positioning component 5 that can position the lower end of the telescopic tube 41 is provided on the top of the water tank 1.

[0025] An outwardly extending edge 12 is provided at the top edge of the water tank 1, and an opening 121 is provided on the edge 12, which passes through the opening 121, and the lower end of the telescopic tube 41 is arranged corresponding to the upper surface of the edge 12, and the positioning component 5 passes through the opening 121 to clamp the part of the water supply pipe 4 located below the telescopic tube 41. The above structure can not only position the position below the telescopic tube 41, so that the telescopic tube 41 has a fixed telescopic support each time it is extended and retracted, and maintain the stability of deformation, but also form a seal between the water supply pipe 4 and the water tank 1 to prevent the accumulation of residual water here and cause bacteria to grow.

[0026] The positioning assembly 5 of this embodiment includes a positioning sleeve 51 and a positioning ring 52. The water supply pipe 4 has a water guide section 42 located below the telescopic pipe 41 and having a flat structure. The positioning sleeve 51 is sleeved on the outer periphery of the water guide section 42. The positioning sleeve 51 passes through the opening 121, and the positioning ring 52 is clamped on the outer periphery of the positioning sleeve 51 and arranged close to the lower surface of the edge 12. This structure facilitates the positioning of the water supply pipe 4 and the positioning sleeve 51 after they pass through the opening 121, and then the positioning ring 52 is used to constrain the positions of the two, which is convenient for operation.

[0027] The edge 12 partially sinks around the opening 121 to form a supporting edge 122. The lower part of the positioning sleeve 51 is arranged through the opening 121. The top edge of the positioning sleeve 51 is provided with a lap edge 511 that can be placed on the supporting edge 122. The positioning ring 52 is used to constrain the lower part of the positioning sleeve 51 below the opening 121. A sealing gasket 53 is also sandwiched between the lower surface of the lap edge 511 and the upper surface of the supporting edge 122. This structure is conducive to further improving the sealing performance here.

[0028] A positioning block 512 extending up and down is protruded from the lower portion of the outer peripheral wall of the positioning sleeve 51. Correspondingly, a clearance opening 123 is provided on the inner edge of the opening 121 for the positioning block 512 to pass through up and down. When assembled, the positioning ring 52 is clamped on the outer periphery of the positioning sleeve 51 and constrained between the lower surface of the edge 12 and the upper edge of the positioning block 512. This structure is conducive to improving the reliability of the constraining effect of the positioning ring 52 on the positioning sleeve 51.

[0029] The positioning ring 52 is a U-shaped structure that can slide from one end of the positioning sleeve 51 to surround the periphery of the positioning sleeve 51. The outer peripheral wall of the positioning sleeve 51 is provided with a sliding groove 513 arranged along the sliding track of the positioning ring 52 on the corresponding positioning block 512. This structure makes it easier to operate the positioning ring 52 when constraining the positioning sleeve 51.

[0030] The upper end surface of the positioning block 512 forms a guide surface 5121 that gradually tilts upward along the sliding track of the positioning ring 52, and the lower surface of the positioning ring 52 is provided with a protruding foot 521 that can slide over the guide surface 5121 and cooperate with the side wall of the positioning block 512 to limit the position. This structure can further improve the reliability of the positioning ring 52 on the positioning sleeve 51.

[0031] The outer circumference of the water guide section 42 is provided with a convex rib 421 extending in a spiral direction thereof, and the convex rib 421 is elastically squeezed and sealed with the inner wall surface of the positioning sleeve 51, and this structure can improve the sealing between the water supply pipe 4 and the positioning sleeve 51. The outer wall of the water guide section 42 is also provided with a limit convex clamp 422 that can be clamped with the lower edge of the positioning sleeve 51.

[0032] In this embodiment, the spray arm 3 is hollow inside to form a flow channel 33 connected to the water inlet 31, and a spray hole 32 is provided on the lower surface of the spray arm 3. A panel 34 is provided below the spray arm 3 to surround the spray hole 32. The panel 34 is provided with jet holes 341 arranged corresponding to the spray holes 32, and there is a gap 100 between the water outlet end of the spray hole 32 and the water inlet end of the jet hole 341. The edge of the panel 34 is provided with an air inlet 342 for external air to enter the air collecting cavity 35 formed inside the panel 34. According to the Venturi effect, the above structure can use the negative pressure generated when the water flows through the gap 100 to suck air into the water column during the spraying of the water column, so that bubbles are entrained in the sprayed water column, and the cavitation effect is used to improve the stripping effect of pollutants, increase the effective cleaning time of dishwashing powder, and thus improve the cleaning effect.

[0033] The water supply pipe 4 of this embodiment adopts a telescopic tube 41 structure at the position where the door body 2 cooperates with the opening 11 on the top of the water tank 1, and can automatically extend and retract according to the movement requirements of the door body. The positioning component 5 is used to constrain the lower end of the telescopic tube 41, and the lower supporting point of the telescopic tube 41 is fixed each time it is extended and retracted, so as to control the telescopic tube 41 to undergo stable telescopic deformation as the door body 2 is opened and closed, which is beneficial to avoid the influence of irregular deformation of the telescopic tube 41 on water supply, and improves the reliability of the water supply pipe 4.

[0034] 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 upper portion of the water supply pipe (4) passes through the door body (2) from the rear side wall of the door body (2) and extends forward to communicate with the water inlet (31) of the spray arm (3); the lower portion of the water supply pipe (4) is arranged vertically below the door body (2) close to the outer side wall of the water tank (1); the portion of the water supply pipe (4) passing through the door body (2) is a telescopic pipe (41); and a positioning component (5) capable of positioning the lower end of the telescopic pipe (41) is provided on the top of the water tank (1).

2. The cleaning machine according to claim 1, characterized in that: The top edge of the water tank (1) is provided with an outwardly extending edge (12), the edge (12) is provided with an opening (121) which passes through the edge (121), the water supply pipe (4) is arranged through the opening (121), and the lower end of the telescopic pipe (41) is arranged corresponding to the upper surface of the edge (12), and the positioning assembly (5) passes through the opening (121) to clamp the portion of the water supply pipe (4) located below the telescopic pipe (41).

3. The cleaning machine according to claim 2, characterized in that: The positioning assembly (5) comprises a positioning sleeve (51) and a positioning ring (52); the water supply pipe (4) has a water guide section (42) which is located below the telescopic tube (41) and has a flat structure; the positioning sleeve (51) is sleeved on the outer periphery of the water guide section (42); the positioning sleeve (51) is arranged through the opening (121); and the positioning ring (52) is clamped on the outer periphery of the positioning sleeve (51) and arranged close to the lower surface of the edge (12).

4. The cleaning machine according to claim 3, characterized in that: The edge (12) is partially sunken at the periphery of the opening (121) to form a supporting edge (122); the lower portion of the positioning sleeve (51) is arranged through the opening (121); the top edge of the positioning sleeve (51) is provided with a lap edge (511) that can be placed on the supporting edge (122); and the positioning ring (52) is used to constrain the lower portion of the positioning sleeve (51) below the opening (121).

5. The cleaning machine according to claim 4, characterized in that: A sealing gasket (53) is also sandwiched between the lower surface of the overlap edge (511) and the upper surface of the support edge (122).

6. The cleaning machine according to claim 4, characterized in that: A positioning block (512) extending up and down is protruded from the lower portion of the outer peripheral wall of the positioning sleeve (51). Correspondingly, a clearance opening (123) for the positioning block (512) to pass through up and down is provided at the inner edge of the opening (121). In the assembled state, the positioning ring (52) is clamped on the outer periphery of the positioning sleeve (51) and constrained between the lower surface of the edge (12) and the upper edge of the positioning block (512).

7. The cleaning machine according to claim 6, characterized in that: The positioning ring (52) is a U-shaped structure that can slide from one end of the positioning sleeve (51) to surround the periphery of the positioning sleeve (51), and the outer peripheral wall of the positioning sleeve (51) is provided with a sliding groove (513) arranged along the sliding track of the positioning ring (52) on the corresponding positioning block (512).

8. The cleaning machine according to claim 7, characterized in that: The upper end surface of the positioning block (512) forms a guide surface (5121) which gradually tilts upward along the sliding track of the positioning ring (52), and the lower surface of the positioning ring (52) is provided with a protruding clamping foot (521) which can slide over the guide surface (5121) and cooperate with the side wall of the positioning block (512) to limit the position.

9. The cleaning machine according to claim 3, characterized in that: The outer circumference of the water guide section (42) is provided with a convex rib (421) extending in a spiral direction along the circumference thereof, and the convex rib (421) is elastically squeezed and sealed with the inner wall surface of the positioning sleeve (51).

10. The cleaning machine according to any one of claims 1 to 9, characterized in that: The spray arm (3) is hollow inside to form a flow channel (33) connected to the water inlet (31); a spray hole (32) is provided on the lower surface of the spray arm (3); a surrounding plate (34) is provided below the spray arm (3) to surround the spray hole (32); jet holes (341) arranged corresponding to the spray holes (32) are provided on the surrounding plate (34); a gap (100) is provided between the water outlet end of the spray hole (32) and the water inlet end of the jet hole (341); an air inlet (342) is provided on the edge of the surrounding plate (34) to allow outside air to enter the air collecting cavity (35) formed inside the surrounding plate (34).

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