Respirator for cleaning machine and cleaning machine

Abstract

The respirator for the cleaning machine comprises a shell, a water inlet channel is formed in the shell, and a siphon opening penetrating through the side wall of the water inlet channel is formed in the side wall of the water inlet channel; the floating part is arranged in the upstream part of the water inlet channel in an up-and-down moving mode, the floating part gives way for the water inlet process of the cleaning machine when moving downwards to the position below the water inlet, and the floating part is used for pushing water in the water inlet channel to the water outlet when moving upwards; and the driving piece is connected with the floating piece and is used for driving the floating piece to move up and down. In the water inlet state, the floating piece moves downwards to the position below the water inlet, normal water inlet of the water inlet is not affected, after water inlet is completed, the floating piece moves upwards, the water inlet is closed firstly, then accumulated water in the water inlet channel is squeezed out through ascending of the floating piece, and therefore the accumulated water in the water inlet channel is reduced, and the water inlet channel is prevented from being blocked. The welding structure of the respirator is prevented from being damaged by volume expansion when accumulated water is frozen, and the reliability of the respirator is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dishwashers, and in particular to a respirator for a washing machine and the washing machine. Background Art

[0002] A dishwasher is a household appliance for automatically washing dishes and is very popular among consumers. In order to discharge the high-temperature humid air in the washing chamber in time, a respirator connected to the washing chamber is usually arranged on the side wall of the dishwasher.

[0003] CN201910127515.0 "A dishwasher breather and its dishwasher" discloses a structure, including an upper shell and a lower shell, a breathing port is provided on the upper shell or the lower shell, the upper shell and the lower shell are fixedly connected to each other, and a water supply channel, a drainage channel, a condensation channel, a first anti-siphon channel, a second anti-siphon channel and a regenerated water chamber that are interconnected are formed inside the two; wherein, a disconnected threaded portion is provided on the inner wall of the breathing port, and is fixedly arranged on the inner tank of the dishwasher through the disconnected threaded portion, and the breathing port is connected to the water supply channel, and / or the drainage channel, and / or the condensation channel, and / or the first anti-siphon channel, and / or the second anti-siphon channel, and / or the regenerated water chamber; the first anti-siphon channel is at least partially located below the water supply channel and passes through below the water supply channel.

[0004] The water inlet siphon in the above scheme can relieve pressure, prevent the water supply channel from being blocked and the respirator from being cracked; it can also prevent the water in the water supply channel from flowing back. However, after the water is inletted, the water supply channel is filled with water, which is easy to freeze in a low temperature environment. Since the cross-section of the water inlet siphon end of the respirator is very small, in the process of water turning into ice and increasing in volume, the increase in water volume cannot expand outward through the water inlet siphon end, and the expansion force will generate stress on the welding position of the respirator laterally. When the stress reaches a certain level, it will cause the welding surface of the respirator to break, resulting in water leakage. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a respirator for a cleaning machine that can discharge water in a water inlet channel in time to avoid the water structure from damaging the welding structure.

[0006] The second technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned respirator in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve at least one of the above technical problems is:

[0008] A respirator for a cleaning machine, comprising:

[0009] A shell, wherein a breathing port, an exhaust port, a water inlet and a water outlet are provided on the shell, and the breathing port and the exhaust port are fluidically connected;

[0010] A water inlet channel is provided in the housing, the water inlet channel fluidically connects the water inlet and the water outlet, and a siphon port penetrating the side wall of the water inlet channel is provided on the side wall;

[0011] Also includes:

[0012] A floating member is disposed in the upstream part of the water inlet channel so as to be movable up and down. When the floating member moves downward to below the water inlet, it makes way for the water inlet process of the cleaning machine. When the floating member moves upward, it is used to push the water in the water inlet channel toward the water outlet.

[0013] The driving member is connected to the floating member and is used for driving the floating member to move up and down.

[0014] In the present invention, the water inlet and the water outlet are both arranged at the bottom of the shell, and the water inlet channel includes an upward channel, a downward channel, a bending channel and a rotating channel. The lower end of the upward channel is fluidly connected with the water inlet, the upper end of the upward channel extends upward to be fluidly connected with the bending channel, the other end of the bending channel is fluidly connected with one end of the rotating channel, the other end of the rotating channel is fluidly connected with the upper end of the downward channel, and the lower end of the downward channel extends downward to be fluidly connected with the water outlet. The bending channel and the rotating channel are both in an upwardly arched arc, and the rotating channels are arranged side by side below the bending channel, and the siphon port is arranged on the bottom wall of the rotating channel. Due to the arc-shaped structure of the bending channel and the rotating channel, the water flow will be accelerated when passing through, and under the action of centrifugal force, it will pass tangentially through the rotating channel and basically will not flow out from the siphon port, and the siphon port can maintain the function of connecting to the atmosphere; when negative pressure is generated at the water inlet, the water in the water inlet channel and the water softener connected thereto will have a tendency to flow back due to siphoning, but because the siphon port is connected to the atmosphere, the air in the atmosphere can enter the rotating channel through the siphon port, balance the negative pressure of the water inlet, and ensure that the water in the water inlet channel will not flow back.

[0015] Preferably, a guide plate inclined from the downstream edge of the siphon port to the breathing port is provided in the semi-enclosed structure formed under the revolving channel, and the guide plate and the revolving channel near the breathing port together enclose a siphon cavity, and a notch is formed at the lower end of the guide plate for connecting the breathing cavity with the breathing port. The above structure facilitates the introduction of water leaking from the siphon port into the cleaning machine through the breathing port.

[0016] As an improvement, a blocking block capable of blocking the gap is provided at the gap, and a gap is provided at the bottom of the blocking block for gas to pass through and for water to flow slowly through.

[0017] Preferably, when the siphon cavity is filled with water and the water inlet and the water inlet channel are cut off, the bending channel and the rotating channel together constitute a siphon structure that draws water from the water inlet channel to the water outlet; when the water inlet channel is hollow, the water in the siphon cavity can slowly flow into the breathing port through the gap. The above structure makes it easy to drain the water in the siphon cavity after the water inlet is completed to restore the normal function of the siphon port and play an anti-siphon role during the next water inlet process.

[0018] Preferably, the floating member is arranged in the upward channel, the driving member is arranged at the lower end of the upward channel, the output shaft of the driving member is arranged upward and connected with a screw rod that passes through the lower end of the upward channel and is connected to the floating member, the floating member constitutes a nut pair that matches the screw rod, and the outer peripheral wall of the floating member is arranged close to the inner wall of the upward channel. The above structure is convenient for driving the floating member to move up and down, thereby controlling the water inlet state, opening the water inlet during the water inlet process, closing the water inlet after the water inlet is completed, and squeezing out the water in the water inlet channel.

[0019] Preferably, a sealing pad is provided at the lower end of the upward channel for sealing the fitting between the screw rod and the upward channel. This structure is conducive to improving the sealing performance of the lower end of the upward channel and avoiding water leakage.

[0020] Preferably, an airflow channel connecting the breathing port and the exhaust port is provided in the shell, and the breathing port is located upstream of the exhaust port along the airflow direction. This structure is conducive to the high-temperature gas in the liner to flow out through the breathing port, the airflow channel and the exhaust port in sequence.

[0021] Preferably, a fan is provided in the air flow channel, the air inlet of the fan is in fluid communication with the breathing port, and the air outlet of the fan is in fluid communication with the exhaust port. This structure is conducive to accelerating the discharge of high-temperature gas.

[0022] A cleaning machine comprises an inner tank, a water softener and the above-mentioned respirator, wherein the inner tank has a washing chamber, the side wall of the inner tank is provided with an exhaust hole which is fluidically connected to the washing chamber, the shell is arranged outside the inner tank and installed on the side wall of the inner tank, the breathing port is arranged on the side wall of the shell facing the inner tank, and the breathing port is fluidically connected to the exhaust hole, and the water outlet is fluidically connected to the water inlet of the water softener.

[0023] Compared with the prior art, the advantages of the present invention are: the present invention arranges a floating member and a driving member upstream of the water inlet channel. When water is inletting, the floating member moves down to below the water inlet without affecting the normal water inlet of the water inlet. After the water inletting is completed, the floating member is moved upward to close the water inlet first, and then the accumulated water in the water inlet channel is squeezed out through the upward movement of the floating member, thereby reducing the accumulated water in the water inlet channel, avoiding the expansion of the accumulated water when it freezes and damaging the welding structure of the respirator, and improving the reliability of the respirator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a cleaning machine according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure of the medium respirator (part of the shell is hidden);

[0026] Figure 3 for Figure 2 A partial enlarged view of . DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 3 As shown, the respirator for the cleaning machine of this embodiment includes:

[0029] The shell 2 is provided with a breathing port 21, an exhaust port 22, a water inlet 24 and a water outlet 25, and the breathing port 21 and the exhaust port 22 are in fluid communication;

[0030] The water inlet channel 26 is provided in the housing 2. The water inlet channel 26 connects the water inlet 24 and the water outlet 25 to each other in a fluid manner. A siphon port 2641 penetrating the side wall of the water inlet channel 26 is provided.

[0031] Also includes:

[0032] The floating member 3 is disposed in the upstream part of the water inlet channel 26 so as to be movable up and down. When the floating member 3 moves downward to below the water inlet 24, it makes way for the water inlet process of the cleaning machine. When the floating member 3 moves upward, it is used to push the water in the water inlet channel toward the water outlet.

[0033] The driving member 4 is connected to the floating member 3 and is used for driving the floating member 3 to move up and down.

[0034] In this embodiment, the water inlet 24 and the water outlet 25 are both arranged at the bottom of the shell 2, and the water inlet channel 26 includes an upward channel 261, a downward channel 262, a bending channel 263 and a rotating channel 264. The lower end of the upward channel 261 is fluidly connected to the water inlet 24, the upper end of the upward channel 261 extends upward to be fluidly connected to the bending channel 263, the other end of the bending channel 263 is fluidly connected to one end of the rotating channel 264, the other end of the rotating channel 264 is fluidly connected to the upper end of the downward channel 262, the lower end of the downward channel 262 extends downward to be fluidly connected to the water outlet 25, the bending channel 263 and the rotating channel 264 are both in an upwardly arched arc, and the rotating channel 264 is arranged side by side below the bending channel 263, and the siphon port 2641 is arranged on the bottom wall of the rotating channel 264. Due to the arc structure of the bending channel and the rotating channel 264, the water flow will be accelerated when passing through, and under the action of centrifugal force, it will pass tangentially through the rotating channel 264, and basically will not flow out from the siphon port 2641, and the siphon port 2641 can maintain the function of connecting to the atmosphere; when negative pressure is generated at the water inlet 24, the water in the water inlet channel and the water softener connected thereto will have a tendency to flow back due to siphoning, but because the siphon port 2641 is connected to the atmosphere, the air in the atmosphere can enter the rotating channel 264 through the siphon port 2641, balancing the negative pressure of the water inlet 24 and ensuring that the water in the water inlet channel does not flow back.

[0035] A guide plate 27 inclined from the downstream edge of the siphon port 2641 to the breathing port 21 is provided in the semi-enclosed structure formed below the revolving channel 264. The guide plate 27 and the revolving channel 264 near the breathing port 21 together enclose a siphon cavity 28. A notch 281 is formed at the lower end of the guide plate 27 for connecting the breathing cavity with the breathing port 21. The above structure facilitates the introduction of water leaking from the siphon port 2641 into the cleaning machine through the breathing port 21.

[0036] In this embodiment, a blocking block 29 is provided at the notch 281 to block the notch 281 , and a gap is provided at the bottom of the blocking block 29 to allow gas to pass through and water to flow slowly through.

[0037] When the siphon cavity 28 is filled with water and the water inlet 24 and the water inlet channel 26 are cut off, the bending channel 263 and the rotating channel 264 together form a siphon structure that draws the water in the water inlet channel 26 to the water outlet 25; when the water inlet channel 26 is hollow, the water in the siphon cavity 28 can slowly flow into the breathing port 21 through the gap. With the above structure, it is convenient to drain the water in the siphon cavity 28 after the water inlet is completed, so as to restore the normal function of the siphon port 2641 and play an anti-siphon role in the next water inlet process.

[0038] The floating member 3 is arranged in the upward channel 261, the driving member 4 is a motor, and is arranged at the lower end of the upward channel 261. The output shaft of the driving member 4 is arranged upward and is connected to a screw rod 41 that passes through the lower end of the upward channel 261 and is connected to the floating member 3. The floating member 3 forms a nut pair that matches the screw rod 41, and the outer peripheral wall of the floating member 3 is arranged close to the inner wall of the upward channel. The above structure is used to facilitate driving the floating member 3 to move up and down, thereby controlling the water inlet state, opening the water inlet 24 during the water inlet process, and closing the water inlet 24 after the water inlet is completed to squeeze out the water in the water inlet channel.

[0039] The lower end of the upward channel 261 is provided with a sealing gasket for sealing the matching portion between the screw rod 41 and the upward channel 261. This structure is conducive to improving the sealing performance of the lower end of the upward channel and avoiding water leakage.

[0040] The housing 2 is provided with an airflow channel 23 connecting the breathing port 21 and the exhaust port 22. Along the airflow direction, the breathing port 21 is located upstream of the exhaust port 22. This structure is conducive to the high-temperature gas in the liner to flow out through the breathing port 21, the airflow channel and the exhaust port 22 in sequence.

[0041] A fan 6 is provided in the air flow channel 23, the air inlet of the fan 6 is in fluid communication with the breathing port 21, and the air outlet of the fan 6 is in fluid communication with the exhaust port 22. This structure is conducive to accelerating the discharge of high-temperature gas.

[0042] The cleaning machine of this embodiment includes an inner tank 1, a water softener 5 and the above-mentioned respirator. The inner tank 1 has a washing chamber 11 inside. An exhaust hole connected to the washing chamber is provided on the side wall of the inner tank 1. The shell 2 is arranged outside the inner tank 1 and installed on the side wall of the inner tank 1. The breathing port 21 is provided on the side wall of the shell 2 facing the inner tank 1, and the breathing port 21 is connected to the exhaust hole in fluid communication. The water outlet 25 is connected to the water inlet of the water softener 5 in fluid communication.

[0043] In this embodiment, a floating member 3 and a driving member 4 are arranged upstream of the water inlet channel. When water is inletting, the floating member 3 moves down to below the water inlet 24 without affecting the normal water inlet of the water inlet 24. After the water inletting is completed, the floating member 3 is moved upward to close the water inlet 24 first, and then the accumulated water in the water inlet channel is squeezed outward by the upward movement of the floating member 3, thereby reducing the accumulated water in the water inlet channel, preventing the accumulated water from expanding in volume when it freezes and damaging the welding structure of the respirator, and improving the reliability of the respirator.

[0044] When using the respirator structure of this embodiment:

[0045] In the water inlet state, the driving member 4 drives the floating member 3 to move downward to the lower end of the upward channel 261, the water inlet 24 is located above the floating member 3 and communicates with the upward channel 261, the water inlet valve is opened, and the water source is input into the cleaning machine through the upward channel 261, the bending channel 263, the rotating channel 264, the downward channel 262, and the water outlet 25;

[0046] After the water inlet is completed, the driving member 4 drives the floating member 3 to move upward to above the water inlet 24, closing the water inlet 24, and the driving member 4 continues to drive the floating member 3 to move upward, continuously squeezing the water in the water inlet channel 26 toward the water outlet 25, thereby reducing the amount of water accumulated in the water inlet channel 26;

[0047] During the water intake process, water continuously leaks into the siphon chamber 28 at the siphon port 2641. After the gas in the siphon chamber 28 is discharged through the gap, the water flow continuously fills the siphon chamber 28, thereby eliminating the siphon effect of the siphon port 2641. During the upward movement of the floating member 3, the bending channel 263 and the rotating channel 264 form a siphon effect between the upward channel 261 and the downward channel 262, thereby sucking the water in the water inlet channel 26 to the water outlet 25 to enter the cleaning machine, and the accumulated water in the water inlet channel 26 is drained.

[0048] 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 respirator for a cleaning machine, comprising: A shell (2), wherein the shell (2) is provided with a breathing port (21), an exhaust port (22), a water inlet (24) and a water outlet (25), and the breathing port (21) and the exhaust port (22) are in fluid communication with each other; A water inlet channel (26) is provided in the housing (2), the water inlet channel (26) fluidically connecting the water inlet (24) and the water outlet (25), and a siphon port (2641) penetrating the side wall of the water inlet channel (26); Features: Also includes A floating member (3) is disposed in the upstream part of the water inlet channel so as to be movable up and down. When the floating member (3) moves downward to below the water inlet, it makes way for the water inlet process of the cleaning machine. When the floating member (3) moves upward, it is used to push the water in the water inlet channel toward the water outlet. A driving member (4) is connected to the floating member (3) and is used to drive the floating member (3) to move up and down.

2. The respirator for a cleaning machine according to claim 1, characterized in that: The water inlet (24) and the water outlet (25) are both arranged at the bottom of the housing (2); the water inlet channel (26) comprises an upward channel (261), a downward channel (262), a bending channel (263) and a rotating channel (264); the lower end of the upward channel (261) is in fluid communication with the water inlet (24); the upper end of the upward channel (261) extends upward to be in fluid communication with the bending channel (263); the other end of the bending channel (263) is in fluid communication with the rotating channel (264); The rotating channel (264) is fluidly connected to one end of the rotating channel (264), the other end of the rotating channel (264) is fluidly connected to the upper end of the descending channel (262), the lower end of the descending channel (262) extends downward to be fluidly connected to the water outlet (25), the bending channel (263) and the rotating channel (264) are both in an arc shape that arches upward, and the rotating channels (264) are arranged side by side below the bending channel (263), and the siphon port (2641) is arranged on the bottom wall of the rotating channel (264).

3. The respirator for a cleaning machine according to claim 2, characterized in that: A guide plate (27) is provided in the semi-enclosed structure formed below the revolving channel and is inclined from the downstream edge of the siphon port (2641) toward the breathing port (21). The guide plate and the revolving channel on the side close to the breathing port together enclose a siphon cavity (28). A notch (281) is formed at the lower end of the guide plate for connecting the breathing cavity with the breathing port.

4. The respirator for a cleaning machine according to claim 3, characterized in that: The notch (281) is provided with a blocking block (29) capable of blocking the notch, and a gap is provided at the bottom of the blocking block (29) for gas to pass through and for water to slowly pass through.

5. The respirator for a cleaning machine according to claim 4, characterized in that: When the siphon cavity (28) is filled with water and the water inlet and the water inlet channel are isolated, the bending channel and the rotating channel together form a siphon structure that draws water in the water inlet channel to the water outlet; when the water inlet channel is hollow, the water in the siphon cavity (28) can slowly flow into the breathing port (21) through the gap.

6. A respirator for a cleaning machine according to any one of claims 2 to 5, characterized in that: The floating member (3) is arranged in the upward channel (261), and the driving member (4) is arranged at the lower end of the upward channel (261). The output shaft of the driving member (4) is arranged upward and is connected to a screw rod that passes through the lower end of the upward channel and is connected to the floating member (3). The floating member (3) constitutes a nut pair that cooperates with the screw rod, and the outer peripheral wall of the floating member (3) is arranged close to the inner wall of the upward channel.

7. The respirator for a cleaning machine according to claim 6, characterized in that: A sealing gasket is provided at the lower end of the upward channel for sealing the fitting position between the screw rod and the upward channel.

8. The respirator for a cleaning machine according to any one of claims 1 to 5, characterized in that: An air flow channel (23) connecting the breathing port (21) and the exhaust port (22) is provided in the housing (2); along the air flow direction, the breathing port (21) is located upstream of the exhaust port (22).

9. The respirator for a cleaning machine according to claim 8, characterized in that: A fan (6) is provided in the air flow channel (23); an air inlet of the fan (6) is fluidically connected to the breathing port (21); and an air outlet of the fan (6) is fluidically connected to the exhaust port (22).

10. A cleaning machine, characterized in that: The invention comprises an inner tank (1), a water softener and a respirator as claimed in any one of claims 1 to 9, wherein the inner tank (1) has a washing chamber inside, and a vent hole in fluid communication with the washing chamber is provided on the side wall of the inner tank (1), the shell (2) is arranged outside the inner tank (1) and installed on the side wall of the inner tank (1), the breathing port (21) is provided on the side wall of the shell (2) facing the inner tank (1), and the breathing port (21) is in fluid communication with the vent hole, and the water outlet (25) is in fluid communication with the water inlet of the water softener.

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