Cleaning machine

Abstract

The utility model relates to a cleaning machine which comprises a box body, a main spraying arm and an auxiliary spraying arm, the auxiliary spraying arm is arranged on the main spraying arm in a rotating mode and communicated with a flow channel, and an output shaft of a driving piece of a water pump extends upwards into the main spraying arm. An output shaft of the driving part is connected with the main spraying arm through a first transmission assembly and used for driving the main spraying arm to rotate at a constant speed, and the output shaft of the driving part is connected with the auxiliary spraying arm through a second transmission assembly and used for driving the auxiliary spraying arm to rotate at a constant speed. The driving part of the water pump of the cleaning machine is used as power, the main spraying arm is connected with the output shaft of the driving part through the first transmission assembly, and the auxiliary spraying arm is connected with the output shaft of the driving part through the second transmission assembly, so that the main spraying arm and the auxiliary spraying arm are controlled to rotate at a constant speed in the rotating process of the output shaft of the driving part; and the clamping stagnation problem is avoided, so that cleaning dead angles are better eliminated, and the cleaning effect 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] Dishwashers are generally provided with spray arms for rinsing dishes or fruits and vegetables by spraying water jets.

[0003] In order to eliminate cleaning dead angles and expand the cleaning effect, the applicant's prior application CN202211611048.7 "A cleaning machine" discloses a structure, which includes a box and a spray arm. The spray arm is rotatably arranged in the box, and the spray arm is provided with a hollow flow channel. The spray arm is also provided with a water outlet connected to the flow channel, and the water outlet is connected to a nozzle that can rotate relative to the spray arm. The above-mentioned spray arm also forms a cavitation water column through an aeration structure. At the moment when the cavitation water column contacts the pollutant, the bubbles entrained in the water flow burst, which can increase the stripping force of the pollutants on the surface of the object to be cleaned, and further improve the cleaning effect.

[0004] The above solution, on the one hand, eliminates the cleaning dead corners at the corners of the washing chamber through the nozzle, and on the other hand, improves the stripping force of pollutants by forming a water column with bubbles. However, since the spray arm and nozzle rotate driven by the viscosity of the water flow, and the water flow rate changes with the washing environment, the spray arm and nozzle rotate unstably, or even get stuck, affecting the cleaning effect. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a cleaning machine which can improve the rotation stability of the spraying part and thus avoid jamming and improve the cleaning effect in view of the current status of the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A cleaning machine comprises a box body, a main spray arm and an auxiliary spray arm, wherein the main spray arm is rotatably arranged in the box body, the main spray arm is provided with a hollow flow channel, the auxiliary spray arm is rotatably arranged on the main spray arm and is connected with the flow channel, a water pump for drawing water and providing power for the main spray arm is provided at the bottom of the box body, the output shaft of the driving member of the water pump extends upward into the main spray arm, the output shaft of the driving member is connected to the main spray arm through a first transmission assembly and is used to drive the main spray arm to rotate at a constant speed, and the output shaft of the driving member is connected to the auxiliary spray arm through a second transmission assembly and is used to drive the auxiliary spray arm to rotate at a constant speed.

[0008] The utility model utilizes the driving member of the water pump of the cleaning machine as the power, connects the main spray arm with the output shaft of the driving member through the first transmission component, and connects the auxiliary spray arm with the output shaft of the driving member through the second transmission component, thereby controlling the main spray arm and the auxiliary spray arm to rotate at a constant speed during the rotation of the output shaft of the driving member, avoiding the occurrence of the jamming problem, thereby better eliminating the cleaning dead angle and improving the cleaning effect.

[0009] Preferably, a gas collecting chamber is provided at the top of the main spray arm, which can surround the water spray hole and supply gas to the water spray hole to form a water jet with bubbles, and the first transmission assembly and the second transmission assembly are both arranged in the gas collecting chamber. With the above structure, the first transmission assembly and the second transmission assembly are protected to prevent the complex environment in the washing chamber from affecting the normal operation of the transmission assembly.

[0010] Preferably, a top plate arranged at intervals is provided on the top of the main spray arm, and the top plate and the top wall of the main spray arm enclose the gas collecting chamber, and jet holes arranged corresponding to the water spray holes are opened on the top plate, and a gap is formed between the jet hole and the water spray hole for air to be sucked into the jet water column in the jet state. According to the Venturi effect, when the water column passes through the water spray hole and the jet hole, negative pressure is generated in the gap, so that the air around it is sucked into the water column, forming a cavitation water column with bubbles. When the cavitation water column hits the surface of the object to be cleaned, the bubbles burst at the moment, which can increase the stripping force on the pollutants and improve the cleaning effect.

[0011] Preferably, the upper end of the output shaft of the driving member is located in the air collecting chamber and is connected to a first gear, and the first gear is connected to the first transmission assembly and the second transmission assembly respectively. This structure facilitates the linkage between the output shaft of the driving member and the main spray arm and the auxiliary spray arm respectively.

[0012] Preferably, the first transmission assembly includes a second gear and a third gear, the diameter of the second gear is larger than the first gear and meshes with the first gear for transmission, an auxiliary gear is arranged on the second gear and rotates synchronously with the second gear, and the third gear is arranged on the inner top wall of the air collecting chamber and meshes with the auxiliary gear for transmission. With the above structure, the output shaft of the driving member and the main spray arm can be linked to reduce speed, so as to control the rotation speed of the main spray arm at a constant speed according to the washing requirements.

[0013] Preferably, the second transmission assembly includes a fourth gear and a fifth gear, the diameter of the fourth gear is larger than the diameter of the first gear and meshes with the first gear for transmission, the diameter of the fifth gear is larger than the diameter of the fourth gear and meshes with the fourth gear for transmission, and the fifth gear is connected to the auxiliary spray arm. A water outlet connected to the flow channel is provided on the top wall of the main spray arm, a water inlet sleeve is provided at the bottom of the auxiliary spray arm, the lower end of the water inlet sleeve is rotationally constrained at the water outlet, and a gear ring is provided on the outer peripheral wall of the water inlet sleeve, which meshes with the fifth gear for transmission. With the above structure, the deceleration linkage between the output shaft of the driving member and the auxiliary spray arm can be realized, so as to control the rotation speed of the auxiliary spray arm at a constant speed according to the washing requirements.

[0014] In the utility model, the water pump includes a guide sleeve, an impeller assembly and a driving member. The bottom of the box body is provided with a concave water return area. The guide sleeve is provided in the water return area and the bottom is the water inlet end and the top is the water outlet end. The main spray arm can be rotatably supported on the guide seat and the bottom is connected with the water outlet end of the guide sleeve. The impeller assembly can be rotatably provided in the guide sleeve and the main spray arm to pump water in the water return area to the main spray arm. The driving member is provided on the outer bottom wall of the box body and the output shaft extends upward through the bottom wall of the box body and is connected to the impeller assembly. With the above structure, the driving member is operated to drive the impeller to rotate, and the water in the water return area can be pumped to the main spray arm to form a spray water column for cleaning.

[0015] Compared with the prior art, the advantages of the utility model are: the utility model utilizes the driving member of the cleaning machine water pump as the power, connects the main spray arm with the output shaft of the driving member through the first transmission component, and connects the auxiliary spray arm with the output shaft of the driving member through the second transmission component, thereby controlling the main spray arm and the auxiliary spray arm to rotate at a constant speed during the rotation of the output shaft of the driving member, avoiding the occurrence of the jamming problem, thereby better eliminating the cleaning dead corners and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 Coordination diagram of the main spray arm and the auxiliary spray arm;

[0018] Figure 3 for Figure 1 A cross-sectional view of

[0019] Figure 4 for Figure 2 sectional view of . DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 4 As shown, the cleaning machine of this embodiment includes a housing 1, a main spray arm 2 and an auxiliary spray arm 3. The main spray arm 2 is rotatably disposed in the housing 1. The main spray arm 2 is provided with a hollow flow channel 21. The auxiliary spray arm 3 is rotatably disposed on the main spray arm 2 and is connected with the flow channel 21. A water pump 4 for drawing water and providing power for the main spray arm 2 is provided at the bottom of the housing 1.

[0022] The output shaft 41 of the driving member 41 of the water pump 4 extends upward into the main spray arm 2. The output shaft 411 of the driving member 41 is connected to the main spray arm 2 through the first transmission assembly 5 and is used to drive the main spray arm 2 to rotate at a constant speed. The output shaft 411 of the driving member 41 is connected to the auxiliary spray arm 3 through the second transmission assembly 6 and is used to drive the auxiliary spray arm 3 to rotate at a constant speed.

[0023] The top of the main spray arm 2 of this embodiment is provided with a water spray hole 22 and a gas collecting chamber 23 which can surround the water spray hole 22 and supply gas to the water spray hole 22 to form a water jet with bubbles, and the first transmission assembly 5 and the second transmission assembly 6 are both arranged in the gas collecting chamber 23. With the above structure, the first transmission assembly 5 and the second transmission assembly 6 are protected to prevent the complex environment in the washing chamber from affecting the normal operation of the transmission assembly.

[0024] The top of the main spray arm 2 is provided with a top plate 24 arranged at intervals, and a gas collecting chamber 23 is enclosed between the top plate 24 and the top wall of the main spray arm 2. The top plate 24 is provided with jet holes 241 arranged corresponding to the water spray holes 22, and a gap 10 is formed between the jet holes 241 and the water spray holes 22 for air to be sucked into the jet water column in the jet state. According to the Venturi effect, when the water column passes through the water spray hole and the jet hole, negative pressure is generated in the gap, so that the air around it is sucked into the water column, forming a cavitation water column with bubbles. When the cavitation water column hits the surface of the object to be cleaned, the bubbles burst at the moment, which can increase the stripping force on the pollutants and improve the cleaning effect.

[0025] The upper end of the output shaft 411 of the driving member 41 is located in the gas collecting chamber 23 and is connected to the first gear 01, which is respectively connected to the first transmission assembly 5 and the second transmission assembly 6. This structure facilitates the linkage between the output shaft 411 of the driving member 41 and the main spray arm 2 and the auxiliary spray arm 3.

[0026] In this embodiment, the first transmission assembly 5 includes a second gear 02 and a third gear 03. The diameter of the second gear 02 is larger than that of the first gear 01 and meshes with the first gear 01 for transmission. An auxiliary gear 021 is provided on the second gear 02 to rotate synchronously therewith. The third gear 03 is provided on the inner top wall of the gas collecting chamber 23 and meshes with the auxiliary gear 021 for transmission. With the above structure, the output shaft 411 of the driving member 41 and the main spray arm 2 can be linked to reduce speed, so as to control the rotation speed of the main spray arm at a constant speed according to the washing requirements.

[0027] The second transmission assembly 6 includes a fourth gear 04 and a fifth gear 05. The diameter of the fourth gear 04 is greater than the diameter of the first gear 01 and is meshed with the first gear 01 for transmission. The diameter of the fifth gear 05 is greater than the diameter of the fourth gear 04 and is meshed with the fourth gear 04 for transmission. The fifth gear 05 is connected to the auxiliary spray arm 3.

[0028] The top wall of the main spray arm 2 is provided with a water outlet 25 connected to the flow channel 21, and the bottom of the auxiliary spray arm 3 is provided with a water inlet sleeve 31, the lower end of the water inlet sleeve 31 is rotationally constrained at the water outlet 25, and the outer peripheral wall of the water inlet sleeve 31 is provided with a gear ring 311, which is meshed with the fifth gear 05 for transmission. With the above structure, the output shaft 411 of the driving member 41 and the auxiliary spray arm 3 can be linked to reduce speed, so as to control the rotation speed of the auxiliary spray arm at a constant speed according to the washing requirements.

[0029] In this embodiment, the water pump 4 includes a guide sleeve 42, an impeller assembly 43 and a driving member 41. A concave return water area 11 is provided at the bottom of the housing 1. The guide sleeve 42 is provided in the return water area 11 and the bottom is the water inlet end and the top is the water outlet end. The main spray arm 2 is rotatably supported on the guide seat 42 and the bottom is connected to the water outlet end of the guide sleeve 42. The impeller assembly 43 is rotatably provided in the guide sleeve 42 and the main spray arm 2 to pump the water in the return water area 11 to the main spray arm 2. The driving member 41 is provided on the outer bottom wall of the housing 1 and the output shaft 411 extends upward through the bottom wall of the housing 1 and is connected to the impeller assembly 43. With the above structure, the driving member 41 is operated to drive the impeller assembly 43 to rotate, so that the water in the return water area 11 can be pumped to the main spray arm 2 to form a spray water column for cleaning.

[0030] This embodiment utilizes the driving member 41 of the cleaning machine water pump 4 as the power, connects the main spray arm 2 with the output shaft 411 of the driving member 41 through the first transmission assembly 5, and connects the auxiliary spray arm 3 with the output shaft 411 of the driving member 41 through the second transmission assembly 6, thereby controlling the main spray arm 2 and the auxiliary spray arm 3 to rotate at a constant speed during the rotation of the output shaft 411 of the driving member 41, avoiding the occurrence of the jamming problem, thereby better eliminating the cleaning dead angle and improving the cleaning effect.

[0031] 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 housing (1), a main spray arm (2) and an auxiliary spray arm (3), wherein the main spray arm (2) is rotatably arranged in the housing (1), the main spray arm (2) is provided with a hollow flow channel (21), and the auxiliary spray arm (3) is rotatably arranged on the main spray arm (2) and is connected to the flow channel (21), characterized in that: A water pump (4) for drawing water and providing power for the main spray arm (2) is arranged at the bottom of the box body (1); an output shaft (411) of a driving member (41) of the water pump (4) extends upward into the main spray arm (2); the output shaft (411) of the driving member (41) is connected to the main spray arm (2) via a first transmission assembly (5) and is used to drive the main spray arm (2) to rotate at a constant speed; the output shaft (411) of the driving member (41) is connected to the auxiliary spray arm (3) via a second transmission assembly (6) and is used to drive the auxiliary spray arm (3) to rotate at a constant speed.

2. The cleaning machine according to claim 1, characterized in that: A water spray hole (22) and an air collecting chamber (23) are provided at the top of the main spray arm (2) and can surround the water spray hole (22) so as to supply gas to the water spray hole (22) to form a water jet column with bubbles. The first transmission assembly (5) and the second transmission assembly (6) are both arranged in the air collecting chamber (23).

3. The cleaning machine according to claim 2, characterized in that: The top of the main spray arm (2) is provided with a top plate (24) arranged at intervals, the top plate (24) and the top wall of the main spray arm (2) enclose the air collecting chamber (23), the top plate (24) is provided with jet holes (241) arranged corresponding to the water spray holes, and a gap (10) is formed between the jet holes (241) and the water spray holes (22) for allowing air to be sucked into the jet water column in a jet state.

4. The cleaning machine according to claim 3, characterized in that: The upper end of the output shaft (411) of the driving member (41) is located in the air collecting chamber (23) and is connected to a first gear (01), and the first gear (01) is respectively connected to the first transmission assembly (5) and the second transmission assembly (6).

5. The cleaning machine according to claim 4, characterized in that: The first transmission assembly (5) comprises a second gear (02) and a third gear (03); the diameter of the second gear (02) is larger than that of the first gear (01) and is meshed with the first gear (01) for transmission; an auxiliary gear (021) is arranged on the second gear (02) and rotates synchronously therewith; the third gear (03) is arranged on the inner top wall of the air collecting chamber and is meshed with the auxiliary gear (021) for transmission.

6. The cleaning machine according to claim 4, characterized in that: The second transmission assembly (6) comprises a fourth gear (04) and a fifth gear (05); the diameter of the fourth gear (04) is greater than the diameter of the first gear (01) and is meshed with the first gear (01) for transmission; the diameter of the fifth gear (05) is greater than the diameter of the fourth gear (04) and is meshed with the fourth gear (04) for transmission; the fifth gear (05) is connected to the auxiliary spray arm.

7. The cleaning machine according to claim 6, characterized in that: The top wall of the main spray arm (2) is provided with a water outlet (25) connected to the flow channel (21); the bottom of the auxiliary spray arm (3) is provided with a water inlet sleeve (31); the lower end of the water inlet sleeve (31) is rotationally constrained at the water outlet (25); the outer peripheral wall of the water inlet sleeve (31) is provided with a gear ring (311); the gear ring (311) is meshed with the fifth gear (05) for transmission.

8. The cleaning machine according to any one of claims 1 to 6, characterized in that: The water pump (4) comprises a guide sleeve (42), an impeller assembly (43) and a driving member (41); a concave water return area (11) is arranged at the bottom of the housing (1); the guide sleeve (42) is arranged in the water return area (11) and has a water inlet at the bottom and a water outlet at the top; the main spray arm (2) is rotatably supported on the guide seat and has a bottom connected to the water outlet of the guide sleeve (42); the impeller assembly (43) is rotatably arranged in the guide sleeve (42) and the main spray arm (2) and is used to pump the water (4) in the water return area to the main spray arm (2); the driving member (41) is arranged on the outer bottom wall of the housing (1) and has an output shaft (411) extending upward through the bottom wall of the housing (1) and connected to the impeller assembly (43).

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