A cleaning machine

Abstract

The utility model relates to a kind of cleaning machines, including box and water pump, the water pump is located in box and is equipped with with the water inlet, water outlet being communicated with box, the water outlet of the water pump is provided with the adjusting assembly that can adjust water area with water pressure increase, the adjusting assembly includes water guide pipe and bellows section, the outer end of the water guide pipe is provided with water hole, the bellows section can be set in water guide pipe and change its covering area to water hole along radial telescopic with water pressure change.Using above structure, under normal water pressure state, water flow when flowing through bellows section will not drive bellows section to occur radial expansion, with water pressure increase, water flow gradually drives bellows section to occur radial expansion, to reduce the water area of water hole, to control water flow and water pressure.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, specifically to a cleaning machine for cleaning tableware, fruits and vegetables. Background Technology

[0002] Dishwashers are already widely used in home kitchens. ZL 202420073301.6 "A Cleaning Machine" discloses a structure that includes a housing and a water pump. The bottom of the housing is provided with a recessed water return area, and the water pump is located in the water return area. The water pump includes a pump casing and an impeller. The bottom of the pump casing has a water inlet, and the side is provided with a flow channel that extends outward in a circumferential spiral direction. The end of the flow channel forms the water outlet of the pump casing, and the impeller is rotatably located in the pump casing.

[0003] The above scheme places the water pump in the return water area and opens an inlet at the bottom of the water pump that is directly connected to the return water area, forming an open water pump. The pump casing completely surrounds the impeller, reducing volumetric leakage loss. At the same time, the water pump pressurizes and draws out the water through a spirally extended flow channel, which not only meets the water pressurization requirements but also reduces the water output bend path, which helps to reduce fluid energy loss and thus improve pumping efficiency and head.

[0004] However, when a higher water pressure is required for a specific cleaning procedure, the water pressure is usually increased by increasing the motor speed of the booster pump. Long-term use can easily lead to motor damage or uncontrollable speed, causing the pump to run at maximum power all the time. This can result in excessive output head or damage to tableware during the cleaning process. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a cleaning machine that can adaptively control water flow and water pressure, based on the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A cleaning machine includes a housing and a water pump. The water pump is located in the housing and has an inlet and an outlet connected to the housing. The outlet of the water pump is provided with an adjustment component that can adjust the water flow area as the water pressure increases. The adjustment component includes a water guide pipe and a corrugated pipe section. The outer end of the water guide pipe is provided with a water outlet hole. The corrugated pipe section is radially expandable and contractible in the water guide pipe and changes its coverage area of ​​the water outlet hole as the water pressure changes.

[0008] With the above structure, under normal water pressure, the water flow will not cause the corrugated pipe section to expand radially when it flows through it. As the water pressure increases, the water flow gradually causes the corrugated pipe section to expand radially, thereby reducing the water outlet area and controlling the water flow and water pressure.

[0009] Preferably, a water guiding cavity is formed inside the water guiding pipe, and the corrugated pipe section is radially expandable and contractible within the water guiding cavity. A water passage hole is formed on the corrugated pipe section, and the water outlet hole is located at the outer end of the water guiding cavity. This structure utilizes the water guiding cavity to transition and guide the water flowing through the corrugated pipe section, thereby controlling the water passage area through the radial expansion and contraction of the corrugated pipe section.

[0010] Preferably, the inner end of the water guide pipe is provided with a first cover plate covering the water pump outlet, and the outer end of the water guide pipe is provided with a second cover plate. The first cover plate has a water outlet opening, the inner end of the corrugated pipe section forms a water inlet end corresponding to the water outlet opening, and the outer end of the corrugated pipe section is a blind end that abuts against the inner surface of the second cover plate. The inner end of the corrugated pipe section is injection molded integrally with the water pump outlet or fused together. This structure is used to prevent water from entering the water guide cavity directly without passing through the corrugated pipe section.

[0011] Preferably, there are multiple water outlets arranged around the outer periphery of the corrugated pipe section on the second cover plate. When the corrugated pipe section is expanded, the blind end of the corrugated pipe section forms a covering surface that can cover the water outlets. This structure allows for the control of whether the water outlets are covered or not in response to changes in water pressure, thereby enabling control of water flow and water pressure.

[0012] Preferably, the corrugated pipe section comprises multiple axially interconnected units, which, when connected, form an S-shaped transition structure. The water passage holes are located at the radially protruding portions of each unit. This structure achieves smooth water flow in the radial direction, reducing water flow energy loss. Furthermore, placing the water passage holes at the outward-protruding crests of the corrugated pipe section facilitates the use of the arched unit structure to guide the water flow.

[0013] Preferably, the water guiding cavity is equipped with a detection element for detecting whether the motor speed is controllable. This detection element is arranged close to the inner wall of the water guiding cavity, and the corrugated pipe section selectively contacts the detection element depending on its radial deformation. With the above structure, when the deformation of the corrugated pipe section is large enough to contact the detection element, it indicates that the motor power is too high and there may be a problem with speed regulation out of control. The detection element transmits a signal to the controller to trigger an alarm, prompting maintenance personnel to repair the motor.

[0014] Preferably, the water guiding cavity extends laterally, and a vertically extending detection rod is disposed below the water guiding cavity. The upper end of the detection rod passes through the bottom wall of the water guiding cavity and is located within the water guiding cavity, with the detection element located at the upper end of the detection rod. This structure facilitates the transmission of electrical signals to the controller via the detection rod.

[0015] Preferably, the water inlet is located at the bottom of the water pump, and a first water outlet and a second water outlet are provided on the side of the water pump. An adjusting component is respectively provided at the first and second water outlets. With this structure, the first water outlet can supply water to the bottom spray arm, and the second water outlet can supply water to the upper spray arm via a water pipe. The adjusting components at the first and second water outlets facilitate bidirectional coordination of water flow and pressure, thereby coordinating the head.

[0016] Compared with the prior art, the advantages of this utility model are as follows: This utility model is equipped with an adjustment component at the outlet of the water pump. Under normal water pressure, the water flow will not drive the corrugated pipe section to expand radially when it flows through the corrugated pipe section. As the water pressure increases, the water flow gradually drives the corrugated pipe section to expand radially, thereby reducing the water outlet area and controlling the water flow and water pressure. This utility model realizes adaptive control of water flow and water pressure, which is conducive to maintaining a suitable jet head and avoiding damage to tableware. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

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

[0019] Figure 3 for Figure 2 A sectional view;

[0020] Figure 4 for Figure 3 A magnified view of a portion of the image. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-4 As shown, the cleaning machine in this embodiment includes a housing 1 and a water pump 2. The water pump 2 is located in the housing 1 and has an inlet 21 and an outlet connected to the housing 1. The outlet of the water pump 2 is provided with an adjustment component 3 that can adjust the water flow area as the water pressure increases. The adjustment component 3 includes a water guide pipe 31 and a corrugated pipe section 32. The outer end of the water guide pipe 31 is provided with an outlet hole 311. The corrugated pipe section 32 is radially expandable and contractible in the water guide pipe 31 and changes its coverage area of ​​the outlet hole 311 as the water pressure changes.

[0023] With the above structure, under normal water pressure, the water flow will not cause the corrugated pipe section 32 to expand radially when it flows through the corrugated pipe section 32. As the water pressure increases, the water flow gradually causes the corrugated pipe section 32 to expand radially, so as to reduce the water outlet area of ​​the outlet hole 311, thereby controlling the water flow and water pressure.

[0024] A water guiding cavity 310 is formed inside the water guiding pipe 31. A corrugated pipe section 32, which can expand and contract radially, is disposed in the water guiding cavity 310. A water passage hole 321 is provided on the corrugated pipe section 32, and a water outlet hole 311 is provided at the outer end of the water guiding cavity 310. With the above structure, the water guiding cavity 310 is used to guide and output the water flowing through the corrugated pipe section 32, so as to realize the control of the water passage area by the radial expansion and contraction of the corrugated pipe section 32.

[0025] The inner end of the water guide pipe 31 is provided with a first cover plate 01 covering the outlet of the water pump 2, and the outer end of the water guide pipe 31 is provided with a second cover plate 02. The first cover plate 01 has an outlet opening 011. The inner end of the corrugated pipe section 32 forms an inlet end 322 corresponding to the outlet opening 011. The outer end of the corrugated pipe section 32 is a blind end and abuts against the inner surface of the second cover plate 02. The inner end of the corrugated pipe section 32 is injection molded integrally with the outlet of the water pump 2 or fused together. The above structure is adopted to prevent water from entering the water guide cavity 310 directly without passing through the corrugated pipe section 32.

[0026] Multiple water outlets 311 are arranged around the outer periphery of the corrugated pipe section 32 on the second cover plate 02. When the corrugated pipe section 32 is expanded, the blind end of the corrugated pipe section 32 forms a covering surface 323 that can cover the water outlets 311. The above structure is adopted so that the water outlets 311 can be covered or not according to the water pressure, thereby realizing the control of water flow and water pressure.

[0027] The corrugated pipe section 32 includes multiple axially interconnected units 001. The interconnected units 001 form an S-shaped transition structure, with water passage holes 321 located at the radially protruding portions of each unit. This structure achieves smooth water flow in the radial direction, reducing water flow energy loss. Furthermore, placing the water passage holes 321 at the outward-protruding crests of the corrugated pipe section 32 facilitates the use of the arched unit structure to guide the water flow.

[0028] A detection element 4 for detecting whether the motor speed is controllable is provided in the water guiding cavity 310. The detection element 4 is arranged close to the inner wall of the water guiding cavity 310, and the corrugated pipe section 32 selectively contacts the detection element 4 depending on its radial deformation. With the above structure, when the deformation of the corrugated pipe section 32 is so large that it can contact the detection element 4, it indicates that the motor power is too high and there may be a problem with speed regulation failure. The detection element 4 transmits a signal to the controller to trigger an alarm, prompting maintenance personnel to repair the motor.

[0029] The water guiding cavity 310 extends laterally, and a vertically extending detection rod 5 is disposed below the water guiding cavity 310. The upper end of the detection rod 5 passes through the bottom wall of the water guiding cavity 310 and is located in the water guiding cavity 310. The detection element 4 is located at the upper end of the detection rod 5. With the above structure, it is convenient to transmit electrical signals to the controller through the detection rod 5.

[0030] The inlet 21 is located at the bottom of the water pump 2. The side of the water pump 2 has a first outlet 201 and a second outlet 202. An adjusting component 3 is installed at each of the first and second outlets 201 and 202. With this structure, the first outlet 201 can supply water to the bottom spray arm, and the second outlet 202 can supply water to the upper spray arm via a water pipe. The adjusting components 3 at the first and second outlets 201 and 202 facilitate bidirectional coordination of water flow and pressure, thereby coordinating the head.

[0031] The water pump 2 is equipped with a water-drawing impeller, and the bottom of the housing 1 is equipped with a motor. The output shaft of the motor passes through the bottom wall of the housing 1 and the water inlet 21 and is connected to the water-drawing impeller to drive the water-drawing pressure to rotate.

[0032] In this embodiment, an adjustment component 3 is installed at the outlet of the water pump 2. Under normal water pressure, the water flow will not cause the corrugated pipe section 32 to expand radially when it flows through it. As the water pressure increases, the water flow gradually causes the corrugated pipe section 32 to expand radially, thereby reducing the water outlet area of ​​the outlet hole 311 and controlling the water flow and water pressure. This embodiment realizes adaptive control of water flow and water pressure, which is beneficial to maintaining a suitable jet head and avoiding damage to tableware.

[0033] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine, comprising a housing (1) and a water pump (2), wherein the water pump (2) is disposed in the housing (1) and has an inlet (21) and an outlet communicating with the housing (1), characterized in that: The water pump (2) is provided with an adjustment component (3) at its outlet, which can adjust the water flow area as the water pressure increases. The adjustment component (3) includes a water guide pipe (31) and a corrugated pipe section (32). The outer end of the water guide pipe (31) is provided with a water outlet hole (311). The corrugated pipe section (32) is radially expandable and contractible in the water guide pipe (31) and changes its coverage area of ​​the water outlet hole (311) as the water pressure changes.

2. The cleaning machine according to claim 1, characterized in that: The water guide pipe (31) forms a water guide cavity (310) inside. The corrugated pipe section (32) is radially expandable and contractible in the water guide cavity (310). A water passage hole (321) is provided on the corrugated pipe section (32), and the water outlet hole (311) is located at the outer end of the water guide cavity (310).

3. The cleaning machine according to claim 2, characterized in that: The inner end of the water guide pipe (31) is provided with a first cover plate (01) covering the outlet of the water pump (2), and the outer end of the water guide pipe (31) is provided with a second cover plate (02). The first cover plate (01) has an outlet opening (011). The inner end of the corrugated pipe section (32) forms an inlet end corresponding to the outlet opening (011). The outer end of the corrugated pipe section (32) is a blind end and abuts against the second cover plate (02) to obtain the inner surface.

4. The cleaning machine according to claim 3, characterized in that: The water outlet (311) is multiple and arranged around the outer periphery of the corrugated pipe section (32) on the second cover plate (02). When the corrugated pipe section (32) is expanded, the blind end of the corrugated pipe section (32) forms a covering surface that can cover the water outlet (311).

5. The cleaning machine according to claim 2, characterized in that: The corrugated pipe section (32) includes multiple units that are interconnected in the axial direction. After the units are connected, they form a transition structure with an S-shaped cross-section. The water passage (321) is opened at the radial protrusion of each unit.

6. The cleaning machine according to any one of claims 2 to 5, characterized in that: The water guide cavity (310) is provided with a detection element (4) for detecting whether the motor speed is controllable. The detection element (4) is arranged close to the inner wall of the water guide cavity (310). The corrugated pipe section (32) selects whether to contact the detection element (4) depending on its radial deformation.

7. The cleaning machine according to claim 6, characterized in that: The water guiding cavity (310) extends laterally, and a vertically extending detection rod (5) is provided below the water guiding cavity (310). The upper end of the detection rod (5) passes through the bottom wall of the water guiding cavity (310) and is located in the water guiding cavity (310). The detection element (4) is located at the upper end of the detection rod (5).

8. The cleaning machine according to any one of claims 1 to 5, characterized in that: The inlet (21) is located at the bottom of the water pump (2). The side of the water pump (2) is provided with a first outlet (201) and a second outlet (202). An adjustment component (3) is provided at the first outlet (201) and the second outlet (202).

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