A cleaning machine

Abstract

This utility model relates to a cleaning machine, including a housing and a water pump. The water pump is located in the housing and has an inlet, a first outlet, and a second outlet connected to the housing. Each of the first and second outlets is equipped with an adjusting component that can reciprocate axially under the impact of water flow. The first outlet has a first adjustment structure that gradually increases the water flow rate as the adjusting component moves outward, and the second outlet has a second adjustment structure that gradually decreases the water flow rate as the adjusting component moves outward. With this design, the flow rate adjustment trends of the adjusting components at the first and second outlets are opposite as the water pressure increases; that is, when the flow rate at the first outlet increases, the flow rate at the second outlet decreases, and vice versa. This allows for the adjustment of the head and water pressure of a single water path by slightly adjusting the motor speed.

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 specific cleaning process requires an increase in water pressure and head, the water pressure is usually increased by increasing the motor speed of the booster pump. This results in an increase in water pressure at both outlets, which in turn increases water and energy consumption. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a cleaning machine that can reduce water consumption and energy consumption by increasing the head of a specific water path as needed, in light of 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, a first outlet, and a second outlet connected to the housing. The first outlet and the second outlet are respectively provided with an adjusting member that can reciprocate axially under the impact of water flow. The first outlet is provided with a first adjustment structure that can gradually increase the water flow as the adjusting member moves outward. The second outlet is provided with a second adjustment structure that can gradually decrease the water flow as the adjusting member moves outward.

[0008] Using the above results, the flow regulation trends achieved by the regulating components installed at the first and second outlets as the water pressure increases are opposite. That is, when the flow rate at the first outlet increases, the flow rate at the second outlet decreases, and when the flow rate at the first outlet decreases, the flow rate at the second outlet increases. In this way, the head and water pressure of a single water circuit can be regulated by slightly adjusting the speed of the motor.

[0009] Preferably, both the first and second water outlets are provided with outwardly extending installation pipe sections, in which flow guide sleeves are embedded, and the adjusting component is movably constrained within the flow guide sleeves. This structure provides a working area for the adjusting component, facilitating installation and assembly.

[0010] Preferably, the adjusting component includes a shaft and an end cap located at the head of the shaft. A bushing is provided in the central part of the guide sleeve for the shaft to pass through and be slidably constrained therein. The guide sleeve also includes an elastic element that ensures the end cap remains in contact with and sealed against the water inlet port of the installation pipe section. When the end cap moves outward, it opens the water inlet port, forming a water passage between the outer surface of the end cap and the inner surface of the guide sleeve. With this structure, under the impact of water flow, the end cap disengages from the water inlet port of the guide sleeve, opening it, and water flows outward through the water inlet port and the water passage.

[0011] Preferably, the inner surface of the installation pipe section of the first outlet forms a first guide surface with an inner diameter that gradually increases along the water flow direction. This first guide surface, together with the corresponding end cap, constitutes the first adjustment structure. The inner surface of the installation pipe section of the second outlet forms a second guide surface with an inner diameter that gradually decreases along the water flow direction. This second guide surface, together with the corresponding end cap, constitutes the second adjustment structure. Using the above structure, the cross-sectional area of ​​the water passage is controlled by the first and second guide surfaces with opposite diameter change trends. As the water pressure increases, the elastic deformation of the elastic element increases, and the axial distance of the adjusting element moving outward increases. The greater the axial distance of the adjusting element moving outward, the smaller the water flow rate of the first outlet and the smaller the water flow rate of the second outlet. Conversely, if the water pressure is reduced, the result is the opposite. This structure can achieve double adjustment of the water flow rate when the water pressure is finely adjusted, thereby fulfilling the requirement for adjusting the single-channel head under fine-tuned water pressure.

[0012] For ease of assembly, the elastic element is a spring sleeved on the outer circumference of the shaft. The first end of the spring abuts against the inner end of the sleeve, and the second end of the spring abuts against the outer end of the end cap.

[0013] Preferably, the inlet port of the installation pipe section is a straight pipe section, and a boss is formed at the rear end of the straight pipe section. The end cap has a mating part at its end that can be inserted into the straight pipe section. A groove is formed on the outer periphery of the end cap, arranged along the outer edge of the mating part. A sealing ring is provided in the groove, and the sealing ring is pressed and sealed with the boss. This structure can seal the water pump outlet when water is not flowing, avoiding problems such as air leakage.

[0014] Preferably, the bottom of the housing has a recessed return water area, the water pump is located in this return water area, the water inlet is located at the bottom of the water pump, the first water outlet extends upward from the side of the water pump, and the second water outlet extends outward from the side of the water pump. The water pump is equipped with a water-drawing impeller, and a motor is located at the bottom of the housing. The motor's output shaft passes upward through the bottom wall of the housing and the water inlet to connect with the water-drawing impeller, thereby driving the water-drawing impeller to rotate.

[0015] Compared with the prior art, the advantages of this utility model are as follows: This utility model is equipped with adjusting components at both the first and second water outlets, but the flow adjustment trends of the two as the water pressure increases are opposite. That is, when the flow rate at the first water outlet increases, the flow rate at the second water outlet decreases, and when the flow rate at the first water outlet decreases, the flow rate at the second water outlet increases. In this way, the head and water pressure of a single water circuit can be adjusted by slightly adjusting the speed of the motor, thereby reducing water consumption and energy consumption while meeting user needs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the greywater pump;

[0018] Figure 3 for Figure 2 A sectional view;

[0019] Figure 4 This is a schematic diagram of the first adjustment structure at the first water outlet in an embodiment of this utility model. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-4As 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, a first outlet 201, and a second outlet 202 that are connected to the housing 1. An adjusting member 3 that can reciprocate axially under the impact of water flow is provided at the first outlet 201 and the second outlet 202 respectively. A first adjustment structure that can gradually increase the water flow rate as the adjusting member 3 moves outward is provided at the first outlet 201, and a second adjustment structure that can gradually decrease the water flow rate as the adjusting member 3 moves outward is provided at the second outlet 202.

[0022] Using the above results, the flow rate regulation trends of the regulating components 3 installed at the first outlet 201 and the second outlet 202 are opposite as the water pressure increases. That is, when the flow rate at the first outlet 201 increases, the flow rate at the second outlet 202 decreases, and when the flow rate at the first outlet 201 decreases, the flow rate at the second outlet 202 increases. In this way, the head and water pressure of a single water circuit can be regulated by slightly adjusting the speed of the motor.

[0023] Both the first outlet 201 and the second outlet 202 are equipped with outwardly extending installation pipe sections 4, in which flow guide sleeves 5 are embedded, and the adjusting component 3 is movably constrained within the flow guide sleeves 5. This structure provides a working area for the adjusting component 3, facilitating installation and assembly.

[0024] The adjusting component 3 includes a shaft 32 and an end cap 31 located at the head of the shaft. A bushing 51 is provided in the central part of the guide sleeve 5, through which the shaft 32 passes and is slidably constrained. The guide sleeve 5 also includes an elastic element 6 that ensures the end cap 31 remains in contact with and sealed against the water inlet port 50 of the installation pipe section 4. When the end cap 31 moves outward, it opens the water inlet port 50, forming a water passage 500 between the outer surface of the end cap 31 and the inner surface of the guide sleeve 5. With this structure, under the impact of water flow, the end cap 31 disengages from the water inlet port 50 of the guide sleeve 5, opening it, and water flows outward through the water inlet port 50 and the water passage 500.

[0025] The inner surface of the installation pipe section 4 of the first outlet 201 forms a first guide surface 501 with an inner diameter that gradually increases along the water flow direction. This first guide surface 501 and the corresponding end cap 31 together constitute a first adjustment structure. The inner surface of the installation pipe section 4 of the second outlet 202 forms a second guide surface 502 with an inner diameter that gradually decreases along the water flow direction. This second guide surface 502 and the corresponding end cap 31 together constitute a second adjustment structure. Using the above structure, the cross-sectional area of ​​the water passage 500 is controlled by the first guide surface 501 and the second guide surface 502, which have opposite diameter change trends. As the water pressure increases, the elastic deformation of the elastic element 6 increases, and the axial distance of the adjusting element 3 moving outward increases. The greater the axial distance of the adjusting element 3 moving outward, the smaller the water flow rate of the first outlet 201 and the smaller the water flow rate of the second outlet 202. Conversely, if the water pressure is reduced, the result is the opposite. The above structure can double the water flow rate when the water pressure is finely adjusted, thus achieving the adjustment requirement of single-channel head under fine-tuning water pressure.

[0026] For ease of assembly, the elastic element 6 is a spring sleeved on the outer periphery of the shaft. The first end of the spring abuts against the inner end of the bushing 51. The bushing 51 is integrally formed in the guide sleeve 5 through the connecting arm. The second end of the spring abuts against the outer end of the end cap 31.

[0027] The inlet port 50 of the installation pipe section 4 is a straight pipe section 41. A boss 42 is formed at the rear end of this straight pipe section 41. The end cap 31 has a mating part 311 that can be inserted into the straight pipe section 41. A groove 312 is provided on the outer periphery of the end cap 31, arranged along the outer edge of the mating part 311. A sealing ring 7 is provided in the groove 312, and the sealing ring 7 is pressed and sealed against the boss 42. This structure can seal the outlet of the water pump 2 when water is not flowing, preventing problems such as air leakage.

[0028] The bottom of the housing 1 has a recessed return water area, in which the water pump 2 is located. The water inlet is located at the bottom of the water pump 2, the first water outlet 201 extends upward from the side of the water pump 2, and the second water outlet 202 extends outward from the side of the water pump 2. The water pump 2 is equipped with a water-drawing impeller, and a motor is located at the bottom of the housing 1. The output shaft of the motor passes upward through the bottom wall of the housing 1 and the water inlet to connect with the water-drawing impeller to drive the water-drawing pressure to rotate.

[0029] 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 through a water pipe. In this embodiment, an adjusting element 3 is provided at both the first outlet 201 and the second outlet 202. However, the flow rate adjustment trends of the two as the water pressure increases are opposite. That is, when the flow rate of the first outlet 201 increases, the flow rate of the second outlet 202 decreases, and when the flow rate of the first outlet 201 decreases, the flow rate of the second outlet 202 increases. In this way, the head and water pressure of a single water path can be adjusted by slightly adjusting the speed of the motor, thereby reducing water consumption and energy consumption while meeting user needs.

[0030] 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, a first outlet (201), and a second outlet (202) communicating with the housing (1), characterized in that: The first outlet (201) and the second outlet (202) are respectively provided with an adjusting member (3) that can move back and forth along the axis under the impact of water flow. The first outlet (201) is provided with a first adjustment structure that can gradually increase the water flow as the adjusting member (3) moves outward, and the second outlet (202) is provided with a second adjustment structure that can gradually decrease the water flow as the adjusting member (3) moves outward.

2. The cleaning machine according to claim 1, characterized in that: Both the first outlet (201) and the second outlet (202) are provided with outwardly extending installation pipe sections (4), and a flow guide sleeve (5) is embedded in the installation pipe section (4). The adjusting component (3) is movably constrained in the flow guide sleeve (5).

3. The cleaning machine according to claim 2, characterized in that: The adjusting component (3) includes a shaft (32) and an end cap (31) located at the head of the shaft (32). The central part of the guide sleeve (5) is provided with a bushing (51) through which the shaft passes and is slidably constrained. The guide sleeve (5) is also provided with an elastic element (6) that enables the end cap (31) to always abut against and seal with the water inlet port (50) of the installation pipe section (4). The end cap (31) moves outward to open the water inlet port (50). A water passage (500) is formed between the outer surface of the end cap (31) and the inner surface of the guide sleeve (5).

4. The cleaning machine according to claim 3, characterized in that: The inner surface of the installation pipe section (4) of the first outlet (201) forms a first guide surface (501) with an inner diameter that gradually increases along the water flow direction. The first guide surface (501) and the corresponding end cap (31) together constitute the first adjustment structure.

5. The cleaning machine according to claim 3, characterized in that: The inner surface of the installation pipe section (4) of the second outlet (202) forms a second guide surface (502) whose inner diameter gradually decreases along the water flow direction. The second guide surface (502) together with the corresponding end cap (31) constitutes the second adjustment structure.

6. The cleaning machine according to claim 3, characterized in that: The elastic element (6) is a spring sleeved on the outer periphery of the shaft. The first end of the spring abuts against the inner end of the bushing (51), and the second end of the spring abuts against the outer end of the end cap (31).

7. The cleaning machine according to claim 3, characterized in that: The water inlet (50) of the installation pipe section (4) is a straight pipe section (41). A boss (42) is formed at the rear end of the straight pipe section (41). The end cap (31) forms a mating part (311) that can be inserted into the straight pipe section (41). A slot (312) is provided on the outer periphery of the end cap (31) along the outer edge of the mating part (311). A sealing ring (7) is provided in the slot (312). The sealing ring (7) is squeezed and sealed with the boss (42).

8. The cleaning machine according to any one of claims 1 to 7, characterized in that: The bottom of the housing (1) is provided with a recessed water return area, the water pump (2) is located in the water return area, the water inlet is opened at the bottom of the water pump (2), the first water outlet (201) extends upward from the side of the water pump (2), and the second water outlet (202) extends outward from the side of the water pump (2).

Images