Exhaust pipe and cleaning device

Abstract

The exhaust pipe comprises a pipe body, the pipe body comprises a first pipe section and a second pipe section which are connected with each other, the first pipe section is transversely arranged, the pipe diameter of the second pipe section is larger than that of the first pipe section, the second pipe section is connected with the first pipe section, and a water accumulation area lower than the bottom of the first pipe section is formed at the joint of the second pipe section and the first pipe section. According to the utility model, the bending part close to the outlet of the exhaust pipe adopts a variable-diameter design, the original pipe diameter of the upstream pipe section is kept unchanged, the pipe diameter of the downstream pipe section is increased, and a water accumulation area is formed at the variable-diameter part, so that a large amount of hot moisture can be directly discharged, condensed water backflow is not easy to form, and even if part of hot moisture becomes condensed water backflow, the condensed water remains in the water accumulation area; the air volume and the air speed in the exhaust pipe are not influenced, so that the drying efficiency and the drying effect of the whole machine are improved; due to the fact that the condensate water exists in the water accumulation area, the blowing effect of wind in the exhaust pipe on the condensate water is weak, the bubble blowing phenomenon is basically avoided, no abnormal sound is generated, and the overall noise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to an exhaust pipe and a cleaning device. Background Art

[0002] The dishwasher usually washes dishes in a process of washing and drying. During the washing process, in order to sterilize the dishes, the water is usually heated to above 70°C, which results in a large amount of hot and humid air inside the dishwasher after the washing process is completed; during the drying process, the drying system needs to use an exhaust pipe to discharge the hot and humid air inside the dishwasher to achieve the effect of drying the inside of the dishwasher.

[0003] ZL 202221251103.1 "A dishwasher exhaust system" discloses a structure, which includes an inner tank, a fan assembly, a respirator, an air duct and an exhaust pipe. A vent is provided on the top of the respirator, the air duct is vertically arranged and the bottom end of the air duct is sealed and connected to the vent, the top of the air duct is a sealed end, an air outlet is provided on the side wall of the air duct, and an exhaust port connected to the outside is provided on the dishwasher, and the exhaust pipe is connected between the air outlet and the exhaust port.

[0004] In the above-mentioned existing dishwashers, the exhaust pipe used in the drying stage will have some water remaining in the bend of the exhaust pipe due to the presence of condensed water. This results in the exhaust pipe's limited area becoming smaller during the blowing process, which is prone to the following two problems:

[0005] (1) The drying efficiency of the whole machine is low, and the drying effect is poor;

[0006] (2) The effective area of ​​the pipe at the residual water location becomes smaller, and the wind speed becomes faster, which produces a bubbling effect on the residual water and is prone to generating noise.

[0007] Therefore, further improvements are needed for the exhaust pipe structure currently used to exhaust moisture in the dishwasher. Utility Model Content

[0008] The first technical problem to be solved by the utility model is to provide an exhaust pipe which can maintain the effective air outlet area of ​​the pipeline to improve the drying efficiency, eliminate the problem of water accumulation caused by wind and reduce noise in view of the current status of the prior art.

[0009] The second technical problem to be solved by the utility model is to provide a cleaning device using the above exhaust pipe in view of the current status of the prior art.

[0010] The technical solution adopted by the utility model to solve at least one of the above technical problems is:

[0011] An exhaust pipe includes a pipe body formed with an air duct, the pipe body includes a first pipe section and a second pipe section connected to each other, the first pipe section is arranged horizontally, the pipe diameter of the second pipe section is larger than the pipe diameter of the first pipe section, the second pipe section is connected to the first pipe section and a water accumulation area is formed at the connection point that is lower than the bottom of the first pipe section.

[0012] The utility model adopts a variable diameter design at the bend near the exhaust pipe outlet, the upstream pipe section retains the original pipe diameter unchanged, the pipe diameter of the downstream pipe section is increased, and a water accumulation area is formed at the variable diameter. During the exhaust process, a large amount of hot and humid air will be directly discharged, and it is not easy to form condensed water reflux. Even if some of the hot and humid air turns into condensed water reflux, it will remain in the water accumulation area and will not affect the air volume and speed in the exhaust pipe, thereby improving the drying efficiency and effect of the whole machine; because the condensed water exists in the water accumulation area, the blowing effect of the wind in the exhaust pipe on the condensed water is very weak, basically no bubble blowing phenomenon will occur, no abnormal sound will be generated, and the overall noise is reduced.

[0013] Preferably, the diameter ratio of the second pipe section to the first pipe section is 1.5 to 2.0. This parameter is helpful to improve the drying efficiency and effect of the whole machine.

[0014] Preferably, the first end of the second pipe segment is connected to the first end of the first pipe segment through a connection ring arranged along the circumferential direction, and the water accumulation area is formed on the second pipe segment side, which is sunken relative to the first pipe segment. With the above structure, a stepped structure can be formed at the connection between the first pipe segment and the second pipe segment, that is, the first pipe segment is located above the step and the water accumulation area is formed below the step, so that the wind blowing into the second pipe segment through the first pipe segment will not blow the condensed water under the step and in the water accumulation area to produce abnormal noise, thereby eliminating the noise at this time.

[0015] Preferably, the second pipe segment is formed with a first bending structure for guiding the gas of the first pipe segment upward, the transverse part of the first bending structure is connected to the first pipe segment, and the vertical part of the first bending structure is used to guide the gas flow upward. The first bending structure is formed on the second pipe segment to facilitate the formation of a water accumulation area at the junction of the first pipe segment and the second pipe segment, and the bent bottom surface of the first bending structure can also play a role in guiding the reflux of condensed water, quickly guiding the condensed water to the water accumulation area, and avoiding the condensed water from being retained in a large area on the pipe wall.

[0016] Preferably, the second pipe section is a telescopic tube that can be bent at an arc at the bend. Preferably, the first pipe section is a telescopic tube. The telescopic tube mentioned above can be a spiral structure or a stacked structure; the telescopic tube structure is adopted, on the one hand, to facilitate hiding the condensed water in the concave part of the telescopic tube, without affecting the exhaust area and preventing the condensed water from being blown; on the other hand, it is convenient to realize the partial bending of the pipe section without affecting the wind passing area at the bend.

[0017] Preferably, the exhaust pipe further comprises a third pipe section, the first end of which is connected to the second end of the first pipe section and extends transversely, the middle portion of which extends downward to form a second bending structure, and along the airflow discharge direction, the first bending structure is located downstream of the second bending structure. The third pipe section is convenient for connecting it to the dishwasher, and the third pipe section may or may not adopt a telescopic pipe structure, because the third pipe section is located at a relatively upstream position, it is not easy to form condensed water, and the hiding requirement for the condensed water is very low.

[0018] In order to facilitate connection and assembly, the lower end of the third pipe section is connected to a first connector for connecting it to the exhaust port of the dishwasher. The upper end of the second pipe section is connected to a second connector for connecting it to other gas receiving structures. The first connector and the second connector can be made of soft materials to facilitate connection and improve the sealing of the connection.

[0019] In the present invention, the first pipe section, the second pipe section and the third pipe section can be directly integrally formed through an injection molding process, or can be welded together in sections to ensure better sealing performance.

[0020] A cleaning device includes a sink assembly and a dishwasher arranged under the sink assembly, and also includes the above-mentioned exhaust pipe. The side of the dishwasher is provided with an air outlet, and the side wall of the sink assembly is provided with an air inlet. The exhaust pipe is connected between the air outlet and the air inlet and is used to discharge moisture in the dishwasher through the sink assembly.

[0021] Preferably, the sink assembly includes a sink and a sink cleaning machine arranged side by side, the dishwasher is located under the sink, the dishwasher is provided with a respirator connected to the washing chamber of the dishwasher outside the side wall opposite to the sink cleaning machine, the air inlet is opened on the side wall of the sink close to the sink cleaning machine, the lower end of the exhaust pipe is connected to the exhaust port of the respirator, the middle part of the exhaust pipe is arranged across the top of the dishwasher, and the upper end of the exhaust pipe extends into the gap formed between the sink and the sink cleaning machine and is connected to the air inlet. The respirator is arranged outside the side wall opposite to the sink cleaning machine, so that the assembly of each functional unit of the cleaning device is more compact and reasonable, saving the installation space of the cabinet, and the exhaust pipe is arranged across the top of the dishwasher, which can not only realize the reflux of condensed water through the exhaust pipe, but also the part of the exhaust pipe directly connected to the respirator is a straight pipe diameter arranged vertically, which makes the exhaust smoother from air inlet to air outlet, and the drying efficiency is significantly improved. The moisture is discharged from the air inlet position of the sink and can be quickly cooled and dispersed in the kitchen space.

[0022] Compared with the prior art, the advantages of the utility model are: the utility model adopts a variable diameter design at the bend near the exhaust pipe outlet, the upstream pipe section retains the original pipe diameter unchanged, the pipe diameter of the downstream pipe section is increased, and a water accumulation area is formed at the variable diameter. During the exhaust process, a large amount of hot and humid air will be directly discharged, and it is not easy to form condensation water reflux. Even if some of the hot and humid air turns into condensation water reflux, it will remain in the water accumulation area and will not affect the air volume and speed in the exhaust pipe, thereby improving the drying efficiency and effect of the whole machine; because the condensation water exists in the water accumulation area, the blowing effect of the wind in the exhaust pipe on the condensation water is very weak, basically no bubble blowing phenomenon will occur, no abnormal sound will be generated, and the overall noise is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the exhaust pipe of an embodiment of the utility model;

[0024] Figure 2 for Figure 1 A cross-sectional view of

[0025] Figure 3 for Figure 2 A magnified view of part A;

[0026] Figure 4 It is a schematic diagram of the structure of the cleaning device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] The exhaust pipe of this embodiment is mainly used in a dishwasher to discharge the high-temperature humid air generated by the dishwasher during the cleaning process through a set path.

[0029] like Figures 1 to 4 As shown, the exhaust pipe of this embodiment includes a pipe body 1 forming an air duct, and the pipe body 1 includes a first pipe segment 11 and a second pipe segment 12 connected to each other. The first pipe segment 11 is arranged horizontally, and the pipe diameter of the second pipe segment 12 is larger than the pipe diameter of the first pipe segment 11. The pipe diameter ratio of the second pipe segment 12 to the first pipe segment 11 is 1.5-2.0. The second pipe segment 12 is connected to the first pipe segment 11 and a water accumulation area 13 is formed at the connection point which is lower than the bottom of the first pipe segment 11.

[0030] The first end of the second pipe section 12 is connected to the first end of the first pipe section 11 through a connection ring 14 arranged along the circumferential direction, and a water accumulation area 13 is formed on the side of the second pipe section 12, which is sunken relative to the first pipe section 11. With the above structure, a stepped structure can be formed at the connection between the first pipe section 11 and the second pipe section 12, that is, the first pipe section 11 is located above the step and the water accumulation area 13 is formed below the step, so that the wind blowing into the second pipe section 12 through the first pipe section 11 will not blow the condensed water in the water accumulation area 13 below the step to generate abnormal noise, thereby eliminating the noise at this time.

[0031] The second pipe section 12 is formed with a first bending structure a for guiding the gas of the first pipe section 11 upward, the transverse part 121 of the first bending structure a is connected to the first pipe section 11, and the vertical part 122 of the first bending structure a is used to guide the gas flow upward. The first bending structure a is formed on the second pipe section 12 to facilitate the formation of a water accumulation area 13 at the junction of the first pipe section 11 and the second pipe section 12, and the bending bottom surface 123 of the first bending structure a can also play a role in guiding the condensed water backflow, quickly guiding the condensed water to the water accumulation area 13, and avoiding the condensed water from being retained in a large area on the pipe wall.

[0032] The second pipe section 12 of this embodiment is a telescopic tube that can be bent at an arc at the bend. The first pipe section 11 is also a telescopic tube. The telescopic tube mentioned above can be a spiral structure or a stacked structure. The telescopic tube structure is adopted. On the one hand, it is convenient to hide the condensed water in the concave part of the telescopic tube without affecting the exhaust area and preventing the condensed water from being blown. On the other hand, it is convenient to realize the partial bending of the pipe section without affecting the wind passing area at the bend.

[0033] The exhaust pipe of this embodiment also includes a third pipe section 15, the first end of which is connected to the second end of the first pipe section 11 and extends transversely, and the middle part of the third pipe section 15 extends downward to form a second bending structure b, and along the airflow discharge direction, the first bending structure a is located downstream of the second bending structure b. The third pipe section 15 is convenient for connecting it to the dishwasher, and the third pipe section 15 may or may not use a telescopic pipe structure, because the third pipe section 15 is located at a relatively upstream position, it is not easy to form condensed water, and the hiding requirement of the condensed water is very low.

[0034] In order to facilitate connection and assembly, the lower end of the third pipe section 15 is connected to a first connector 16 for connecting it to the exhaust port of the dishwasher. The upper end of the second pipe section 12 is connected to a second connector 17 for connecting it to other gas receiving structures. The first connector 16 and the second connector 17 can be made of soft materials to facilitate connection and improve the sealing of the connection.

[0035] In this embodiment, the first pipe segment 11, the second pipe segment 12, and the third pipe segment 15 can be directly integrally formed through an injection molding process, or can be welded together in sections to ensure better sealing performance.

[0036] The present embodiment adopts a variable diameter design at the bend near the exhaust pipe outlet, the upstream pipe section retains the original pipe diameter unchanged, the pipe diameter of the downstream pipe section is increased, and a water accumulation area 13 is formed at the variable diameter. During the exhaust process, a large amount of hot and humid air will be directly discharged, and it is not easy to form condensed water reflux. Even if some of the hot and humid air turns into condensed water reflux, it will remain in the water accumulation area 13, and will not affect the air volume and speed in the exhaust pipe, thereby improving the drying efficiency and effect of the whole machine; because the condensed water exists in the water accumulation area 13, the blowing effect of the wind in the exhaust pipe on the condensed water is very weak, basically no bubble blowing phenomenon will occur, no abnormal sound will be generated, and the overall noise is reduced.

[0037] The cleaning device of this embodiment includes a water tank assembly 2 and a dishwasher 3 arranged under the water tank assembly. An air outlet is opened on the side of the dishwasher 3, and an air inlet 211 is opened on the side wall of the water tank assembly 2. An exhaust pipe is connected between the air outlet and the air inlet 211 to discharge moisture in the dishwasher 3 through the water tank assembly.

[0038] Specifically, the sink assembly 2 includes a sink 21 and a sink cleaning machine 22 arranged side by side, the dishwasher 3 is located under the sink 21, and the dishwasher 3 is provided with a breather 4 connected to the washing chamber of the dishwasher 3 outside the side wall opposite to the sink cleaning machine 22. The air inlet 211 is opened on the side wall of the sink 21 close to the sink cleaning machine 22, the lower end of the exhaust pipe is connected to the exhaust port 41 of the breather 4, the middle part of the exhaust pipe is arranged across the top of the dishwasher 3, and the upper end of the exhaust pipe extends into the gap 23 formed between the sink 21 and the sink cleaning machine 22 and is connected to the air inlet 211. The respirator 4 is arranged outside the side wall opposite to the sink cleaning machine 22, so that the functional units of the cleaning device can be assembled more compactly and reasonably, saving the installation space of the cabinet. The exhaust pipe is arranged across the top of the dishwasher 3, which can not only realize the reflux of condensed water through the exhaust pipe, but also the part of the exhaust pipe directly connected to the respirator 4 is a vertically arranged straight pipe diameter, which makes the exhaust smoother from air inlet to air outlet, and significantly improves the drying efficiency. The moisture is discharged from the air inlet 211 of the sink 21, and can be quickly cooled and dispersed in the kitchen space.

[0039] 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. An exhaust pipe, comprising a pipe body (1) formed with an air duct, characterized in that: The pipe body (1) comprises a first pipe section (11) and a second pipe section (12) which are connected to each other. The first pipe section (11) is arranged transversely. The diameter of the second pipe section (12) is larger than the diameter of the first pipe section (11). The second pipe section (12) is connected to the first pipe section (11) and forms a water accumulation area (13) at the connection point which is lower than the bottom of the first pipe section (11).

2. The exhaust pipe according to claim 1, characterized in that: The first end of the second pipe section (12) is connected to the first end of the first pipe section (11) via a connecting ring (14) arranged along the circumferential direction, and a water accumulation area (13) is formed on the side of the second pipe section (12) that is sunken relative to the first pipe section (11).

3. The exhaust pipe according to claim 1, characterized in that: The second pipe section (12) is formed with a first bending structure (a) for guiding the gas of the first pipe section (11) upward, the transverse part of the first bending structure (a) is connected to the first pipe section (11), and the vertical part of the first bending structure (a) is used to guide the gas flow upward.

4. The exhaust pipe according to claim 3, characterized in that: The second pipe section (12) is a telescopic pipe which can be bent at an arc at a bending point.

5. The exhaust pipe according to claim 3, characterized in that: The exhaust pipe also includes a third pipe section (15), a first end of the third pipe section (15) is connected to the second end of the first pipe section (11) and extends laterally, and a middle portion of the third pipe section (15) extends downward to form a second bending structure (b), and along the airflow discharge direction, the first bending structure (a) is located downstream of the second bending structure (b).

6. The exhaust pipe according to claim 5, characterized in that: The lower end of the third pipe section (15) is connected to a first connector (16) for connecting it to the exhaust port of the dishwasher (3).

7. The exhaust pipe according to any one of claims 1 to 6, characterized in that: The upper end of the second pipe section (12) is connected to a second connector (17) for connecting it to other gas receiving structures.

8. The exhaust pipe according to any one of claims 1 to 6, characterized in that: The first pipe section (11) is a telescopic pipe.

9. The exhaust pipe according to any one of claims 1 to 6, characterized in that: The diameter ratio of the second pipe section (12) to the first pipe section (11) is 1.5 to 2.

0.

10. A cleaning device, comprising a water tank assembly (2) and a dishwasher (3) arranged below the water tank assembly (2), characterized in that: It also comprises an exhaust pipe as claimed in any one of claims 1 to 9, wherein an air outlet is provided on the side of the dishwasher (3), an air inlet (211) is provided on the side wall of the water tank assembly (2), and the exhaust pipe is connected between the air outlet and the air inlet (211) to discharge moisture in the dishwasher (3) through the water tank assembly (2).

11. The cleaning device according to claim 10, characterized in that: The sink assembly (2) comprises a sink (21) and a sink cleaning machine (22) arranged side by side, the dishwasher (3) being located below the sink (21), the dishwasher (3) being provided with a breather (4) communicating with a washing chamber of the dishwasher (3) outside a side wall facing away from the sink cleaning machine (22), the air inlet (211) being provided on a side wall of the sink (21) close to the sink cleaning machine (22), the lower end of the exhaust pipe being connected with an exhaust port (41) of the breather (4), the middle portion of the exhaust pipe being arranged across the top of the dishwasher (3), the upper end of the exhaust pipe extending into a gap (23) formed between the sink (21) and the sink cleaning machine (22) and being communicated with the air inlet (211).

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