Air drying sink dishwasher

Abstract

The present invention provides a blast drying type water tank dishwasher, which relates to the technical field of kitchen appliances. The blast drying type water tank dishwasher provided by the present invention comprises a water tank and a blast device installed outside the water tank; a first through hole is provided on the side wall of the water tank, the water tank has a countertop, and a second through hole connected to the outside air is provided on the countertop; the blast device has a breathing channel and an air blast channel, the breathing inlet of the breathing channel is connected to the inner cavity of the water tank through the first through hole, the breathing outlet of the breathing channel is connected to the outside air, the air intake of the air blast channel is connected to the second through hole, and the air exhaust of the air blast channel is connected to the inner cavity of the water tank through the first through hole. The blast drying type water tank dishwasher provided by the present invention can directly extract gas from the outside air to dry the tableware in the water tank, thereby avoiding secondary contamination of the tableware from the root, and ensuring smooth water inflow.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, in particular to an air-blast drying type sink dishwasher. Background Art

[0002] One of the existing tableware drying methods of sink dishwashers is hot air drying, and its specific working principle is: hot air is blown into the inner cavity of the dishwasher through a fan, and the hot air dries the tableware and is then discharged into the inner space of the cabinet through a respirator on the side wall of the inner cavity of the dishwasher. Although some moisture will condense and be discharged in the respirator, there is still a large amount of water vapor in the hot air discharged into the cabinet. After long-term use, it is very easy to cause moisture and mold in the cabinet. The fan usually draws air directly from the cabinet, and the polluted air continuously flows between the dishwasher and the cabinet, forming a polluted gas circulation, which not only causes secondary pollution of the tableware, but also accelerates the mold speed of the cabinet. Summary of the invention

[0003] The object of the present invention is to provide an air-drying sink dishwasher, which can avoid secondary contamination of tableware from the root and will not cause the cabinet to become damp and moldy.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides an air-blast drying water tank dishwasher, comprising a water tank and an air-blast device installed outside the water tank;

[0006] A first through hole is formed on the side wall of the water tank, the water tank has a table top, and a second through hole communicating with the outside air is formed on the table top;

[0007] The blowing device has a breathing channel and an air blowing channel, the breathing inlet of the breathing channel is connected to the inner cavity of the water tank through the first through hole, the breathing outlet of the breathing channel is connected to the outside air, the air intake port of the air blowing channel is connected to the second through hole, and the air exhaust port of the air blowing channel is connected to the inner cavity of the water tank through the first through hole.

[0008] Further, the air blowing device comprises a housing and an air guide assembly installed outside the housing;

[0009] The breathing passage is formed in the shell, the breathing inlet and the breathing outlet are both located on the shell, and the breathing inlet is arranged toward the water tank;

[0010] The shell has an exhaust port which is arranged opposite to and connected to the breathing inlet, and the suction port is located on the shell or the wind guide component, so that the blowing channel is formed between the inner cavity of the shell and the wind guide component, or is directly formed in the wind guide component.

[0011] Furthermore, the air blast channel includes a front air duct and a rear air duct, the front air duct is formed in the shell, one end of the front air duct is the air inlet, and the other end of the front air duct is a transfer port opened on the shell;

[0012] The rear air duct is formed in the air guide component, one end of the air guide component is connected to the adapter, and the other end is connected to the exhaust port.

[0013] Furthermore, the air guide assembly includes a fan and an air guide shell, the inlet of the fan is connected to the adapter, one end of the air guide shell is connected to the outlet of the fan, and the other end is connected to the exhaust port.

[0014] Furthermore, a heater is provided in the air guide shell.

[0015] Furthermore, the shell also has a water inlet channel and a flow meter arranged in the water inlet channel. One end of the water inlet channel is used to communicate with an external water source, and the other end is connected to the breathing inlet.

[0016] Furthermore, a non-return assembly is provided at the air outlet to allow the airflow in the air blast channel to flow into the water tank in a unidirectional manner.

[0017] Furthermore, it also includes a fastener located in the water tank, the fastener passes through the first through hole and is connected to the breathing inlet, and the fastener has a plurality of air holes.

[0018] Furthermore, a suction assembly is installed at the suction port, and the suction assembly includes a suction plate, and the suction plate has a plurality of suction holes.

[0019] Furthermore, the air suction assembly also includes an air suction seat, which is arranged below the table top, the air suction plate is connected to the air suction seat through the second through hole, and the air suction seat is inserted into the air suction port.

[0020] The air-drying water tank dishwasher provided by the present invention can produce the following beneficial effects:

[0021] When the above-mentioned air-drying water-sink dishwasher is used, outside air enters the air inlet of the air-drying channel through the second through hole, and enters the water sink through the air outlet of the air-drying channel and the first through hole, thereby drying the dishes in the water sink. During the water intake process before washing, the gas in the water sink can enter the breathing inlet of the breathing channel through the first through hole, and be discharged to the outside through the breathing outlet of the breathing channel, thereby ensuring the balance between the air pressure in the water sink and the outside air pressure.

[0022] Compared with the prior art, the air-drying sink dishwasher provided by the present invention can directly draw gas from the outside air to dry the tableware in the sink, thereby avoiding secondary contamination of the tableware from the source, and can ensure the balance of the air pressure in the sink and the outside air pressure during the water intake process, thereby achieving smooth water intake. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a water tank provided in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the three-dimensional structure of an air-drying sink dishwasher provided by an embodiment of the present invention at a first viewing angle;

[0026] Figure 3 A partial cross-sectional view of an air-drying sink dishwasher provided by an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the three-dimensional structure of the air blowing device and the fastener provided in the embodiment of the present invention when they cooperate with each other;

[0028] Figure 5 An exploded view of a housing provided by an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the three-dimensional structure of the air blowing device provided in an embodiment of the present invention;

[0030] Figure 7 An exploded view of the air blowing device provided by an embodiment of the present invention when it cooperates with the fastener at a first viewing angle;

[0031] Figure 8 An exploded view of the air blowing device provided by an embodiment of the present invention when it cooperates with the fastener at a second viewing angle;

[0032] Fig. 9 A schematic diagram of the three-dimensional structure of an air-drying sink dishwasher provided by an embodiment of the present invention at a second viewing angle.

[0033] Icons: 1-sink; 11-first through hole; 12-table; 121-second through hole; 13-sink body; 14-door cover; 15-door opening device; 2-blowing device; 21-breathing channel; 211-breathing inlet; 212-breathing outlet; 22-blowing channel; 221-air suction port; 222-air exhaust port; 223-front air duct; 224-rear air duct; 23-housing; 231-front housing; 232-rear housing; 2321-adapter; 24-air guide assembly; 241-fan; 242-air guide housing; 243-heater; 25-water inlet channel; 26-flow meter; 27-check assembly; 28-air suction assembly; 281-air suction plate; 282-air suction seat; 283-second sealing ring; 284-filter; 29-drainage channel; 3-fastener; 4-first sealing ring. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0038] This embodiment provides an air-drying water tank dishwasher. Figures 1 to 3As shown, it includes a water tank 1 and a blower device 2 installed outside the water tank 1; a first through hole 11 is opened on the side wall of the water tank 1, the water tank 1 has a table top 12, and a second through hole 121 connected to the outside air is opened on the table top 12; the blower device 2 has a breathing channel 21 and an air blowing channel 22, a breathing inlet 211 of the breathing channel 21 is connected to the inner cavity of the water tank 1 through the first through hole 11, a breathing outlet 212 of the breathing channel 21 is connected to the outside air, an air intake port 221 of the air blowing channel 22 is connected to the second through hole 121, and an air exhaust port 222 of the air blowing channel 22 is connected to the inner cavity of the water tank 1 through the first through hole 11.

[0039] When using the above-mentioned air drying type sink dishwasher, if Figure 1 , Figure 3 and Figure 4 As shown, outside air enters the air inlet 221 of the air blast channel 22 through the second through hole 121, and enters the water tank 1 through the air outlet 222 of the air blast channel 22 and the first through hole 11, thereby drying the dishes in the water tank 1. During the water intake process before washing, the gas in the water tank 1 can enter the breathing inlet 211 of the breathing channel 21 through the first through hole 11, and be discharged to the outside through the breathing outlet 212 of the breathing channel 21, thereby ensuring the balance between the air pressure in the water tank 1 and the outside air pressure.

[0040] Compared with the prior art, the blower-drying sink dishwasher provided in this embodiment can directly draw gas from the outside air to dry the tableware in the sink 1, thereby avoiding secondary contamination of the tableware from the source, and can ensure the balance of the air pressure in the sink 1 and the outside air pressure during the water intake process, thereby achieving smooth water intake.

[0041] In the above embodiment, the breathing outlet 212 of the breathing channel 21 and the exhaust outlet 222 of the blast channel 22 are both connected to the inner cavity of the water tank 1 through the first through hole 11, that is, one end of the breathing channel 21 is connected to one end of the blast channel 22. It should be noted that, except for the above-mentioned ends of the two, the path passed by the breathing channel 21 does not intersect with the path passed by the blast channel 22, so as to ensure that the outside air can be smoothly discharged into the water tank 1 through the blast channel 22, and the air in the water tank 1 can be smoothly discharged to the outside through the breathing channel 21.

[0042] In some embodiments, Figure 5 and Figure 6As shown, the blowing device 2 includes a shell 23 and an air guide assembly 24 installed on the outside of the shell 23; the breathing channel 21 is formed in the shell 23, the breathing inlet 211 and the breathing outlet 212 are both located on the shell 23, and the breathing inlet 211 is arranged toward the water tank 1; the shell 23 has an exhaust port 222 arranged opposite to and connected to the breathing inlet 211, and the air intake port 221 is located on the shell 23 or the air guide assembly 24, so that the blowing channel 22 is formed between the inner cavity of the shell 23 and the air guide assembly 24, or directly formed in the air guide assembly 24.

[0043] like Figure 5 and Figure 6 As shown, the air suction port 221 may be located on the housing 23, and the housing 23 includes a funnel-shaped air suction shell, and the top opening of the air suction shell is the air suction port 221. In this case, the air blast channel 22 is formed between the inner cavity of the housing 23 and the air guide component 24. In some other embodiments, the air suction port 221 may also be directly located on the air guide component 24. In this case, the air guide component 24 may include a funnel-shaped air suction shell installed on the housing 23, that is, the funnel-shaped air suction shell and the air guide component 24 have an integrated structure, and the air blast channel 22 is formed in the air guide component 24.

[0044] by Figure 6 For example, when in use, the air above the table 12 enters the air inlet 221 on the housing 23 from the second through hole 121, and then reaches the exhaust port 222 after passing through the inner cavity of the housing 23 and the air guide assembly 24, and enters the first through hole 11 of the water tank 1 from the breathing inlet 211 connected to the exhaust port 222, and is discharged into the water tank 1. At the same time, the air in the water tank 1 can enter the housing 23 from the breathing inlet 211, and be discharged to the outside through the breathing outlet 212 on the housing 23.

[0045] Among them, a breathing inlet 211 and a breathing outlet 212 can be directly opened on the outer shell 23, and two first adapters can be fixed on the outer shell 23, and the two first adapters respectively form a breathing inlet 211 and a breathing outlet 212; similarly, an air intake 221 and an air exhaust 222 can be directly opened on the outer shell 23, and two second adapters can be fixed on the outer shell 23, and the two second adapters respectively form an air intake 221 and an air exhaust 222.

[0046] In at least one embodiment, a breathing inlet 211 , a breathing outlet 212 , an air intake port 221 and an air exhaust port 222 are directly formed on the housing 23 .

[0047] Specifically, Figure 5As shown, the housing 23 includes a front housing 231 and a rear housing 232 that are buckled together, the breathing outlet 212 is located at the upper part of the front housing 231, the breathing inlet 211 is located at the front housing 231 and is arranged opposite to the first through hole 11, and the exhaust port is located at the rear housing 232 and is opposite to the breathing inlet 211. A plurality of bent plates are provided on the inner wall of the rear housing 232 facing the front housing 231. When the front housing 231 and the rear housing 232 are buckled together, the end of each bent plate that is away from the rear housing 232 abuts against the front housing 231, forming the breathing channel 21 and other gas or water channels.

[0048] In some embodiments, Figure 7 and Figure 8 As shown, in order to allow the outside air to be stably introduced into the water tank 1, the air blast channel 22 includes a front air duct 223 and a rear air duct 224. The front air duct 223 is formed in the outer shell 23, one end of the front air duct 223 is an air intake port 221, and the other end of the front air duct 223 is a transfer port 2321 opened on the outer shell 23; the rear air duct 224 is formed in the air guide component 24, one end of the air guide component 24 is connected to the transfer port 2321, and the other end is connected to the exhaust port 222.

[0049] Specifically, Figure 5 As shown, a funnel-shaped air duct is formed on the top of the rear shell 232 , and the top opening of the funnel-shaped air duct is an air suction port 221 . The setting of the funnel-shaped air duct can increase the air suction area of ​​the outer shell 23 .

[0050] like Figure 8 As shown, the adapter 2321 is located on the rear shell 232. When the front shell 231 and the rear shell 232 are buckled together, a connecting cavity is formed between the bending plate on the upper part of the rear shell 232 and the front shell 231. The funnel-shaped air duct and the adapter 2321 are both connected to the connecting cavity, and the funnel-shaped air duct and the connecting cavity together constitute the front air duct 223.

[0051] In some embodiments, Figure 7 and Figure 8 As shown, the air guide assembly 24 includes a fan 241 and an air guide shell 242. The inlet of the fan 241 is connected to the adapter 2321. Under the suction of the fan 241, the air at the adapter 2321 can directly enter the fan 241. One end of the air guide shell 242 is connected to the outlet of the fan 241, and the other end is connected to the exhaust port 222, so that the air exhausted by the fan 241 enters the exhaust port 222 via the air guide shell 242.

[0052] The fan 241 and the air guide shell 242 form the rear air duct 224 .

[0053] There are many ways to connect the fan 241 and the rear shell 232 , and the air guide shell 242 and the rear shell 232 . Specifically, the fan 241 and the air guide shell 242 can be glued, screwed, or clamped to the rear shell 232 .

[0054] In at least one embodiment, Figure 7 As shown, in order to quickly dry the dishes in the sink 1 , a heater 243 is provided in the air guide housing 242 .

[0055] The heater 243 may be a PTC heating element.

[0056] In some embodiments, Figure 5 As shown, the housing 23 also has a water inlet channel 25 and a flow meter 26 disposed in the water inlet channel 25. One end of the water inlet channel 25 is used to communicate with an external water source, and the other end is connected to the breathing inlet 211. When in use, the water inlet channel 25 can discharge water into the water tank 1 through the breathing inlet 211 to achieve a cleaning function. The flow meter 26 detects the water flow in the water inlet channel 25 to better control the water intake.

[0057] The above arrangement integrates the three functions of drying, breathing and water intake into the air blowing device 2, which facilitates the assembly of the air-drying type sink dishwasher and reduces its occupied volume.

[0058] like Figure 5 As shown, an inverted U-shaped drainage channel 29 is also formed in the housing 23. The drainage channel 29 has a drainage inlet and a drainage outlet. The drainage inlet is connected to the water tank 1, and the drainage outlet is used to drain the water in the water tank 1.

[0059] Specifically, the height of the top of the drainage channel 29 is lower than the height of the breathing outlet 212 . When the water level in the water tank 1 is higher than the top of the drainage channel 29 , it can be discharged through the drainage channel 29 , thereby preventing the water level from reaching the breathing outlet 212 and flowing back into the water inlet channel 25 .

[0060] In some embodiments, Figure 3 and Figure 8 As shown, a check assembly 27 is provided at the air outlet 222 to allow the air flow in the air blast channel 22 to flow into the water tank 1 in a unidirectional manner to avoid backflow.

[0061] The anti-return component 27 may include a rotating plate rotatably connected to the outer shell 23. When the tableware in the sink 1 needs to be dried, the rotating plate rotates relative to the outer shell 23 in a direction away from the air blast channel 22 to open the exhaust port 222; when air backflow occurs, under the push of the air flow, the rotating plate rotates relative to the outer shell 23 in a direction close to the air blast channel 22 to close the exhaust port 222.

[0062] In some embodiments, Fig. 9As shown, the above-mentioned air-drying water tank dishwasher also includes a fastener 3 located in the water tank 1, the fastener 3 passes through the first through hole 11 and is connected to the breathing inlet 211, and the fastener 3 has a plurality of air holes, which can concentrate the airflow to the tableware and improve the drying efficiency of the tableware.

[0063] Specifically, the fastener 3 passes through the first through hole 11 and is threadedly connected to the breathing inlet 211 .

[0064] In at least one embodiment, a first sealing ring 4 is further disposed between the rear shell 232 and the water tank 1 .

[0065] In some embodiments, Figure 8 As shown, a suction assembly 28 is installed at the suction port 221. The suction assembly 28 includes a suction plate 281. The suction plate 281 has a plurality of suction holes. External air can enter the suction port 221 from the plurality of suction holes.

[0066] There is no specific limitation on the shapes of the air holes and the air suction holes, and shapes such as round and long strips are applicable.

[0067] Based on the above embodiments, Figure 8 As shown, in order to facilitate the installation of the suction plate 281, the suction assembly 28 also includes a suction seat 282, which is arranged under the table 12, and the suction plate 281 is connected to the suction seat 282 through the second through hole 121, and the suction seat 282 is inserted into the suction port 221.

[0068] To ensure good sealing between the suction seat 282 and the table 12, a second sealing ring 283 can be clamped between the suction seat 282 and the table 12, and a filter 284 can be provided in the suction seat 282 to filter dust and prevent debris or insects from entering the sink 1.

[0069] The filter element 284 may be filter cotton, a metal mesh or porous ceramics.

[0070] In addition, if Fig. 9 As shown, the water tank 1 may include a tank body 13, a door cover 14 and a door opening device 15; the tank body 13 has an opening arranged upward, and a first through hole 11 is opened on the inner wall of the tank body 13, the blowing device 2 is installed on the outside of the tank body 13, and the table top 12 is installed on the top of the tank body 13; the door cover 14 is pivotally connected to the table top 12; the door opening device 15 is installed on the outside of the tank body 13, and the door opening device 15 is used to drive the door cover 14 to rotate relative to the tank body 13 to close or open the opening.

[0071] Specifically, the door opening device 15 is an electric push rod structure, which extends upward from the bottom of the table 12 and can move up and down relative to the table 12 to push the door cover 14 to rotate up and down. A ventilated gap is formed between the door cover 14 and the table 12 to discharge the air in the sink 1 to the outside during the drying process.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A blast drying type water tank dishwasher, characterized in that: It comprises a water tank (1) and an air blowing device (2) installed outside the water tank (1); The side wall of the water tank (1) is provided with a first through hole (11); the water tank (1) has a table top (12); and the table top (12) is provided with a second through hole (121) communicating with the outside air; The blasting device (2) comprises a breathing channel (21) and an air blasting channel (22); the breathing inlet (211) of the breathing channel (21) is connected to the inner cavity of the water tank (1) through the first through hole (11); the breathing outlet (212) of the breathing channel (21) is connected to the outside air; the air inlet (221) of the air blasting channel (22) is connected to the second through hole (121); and the air outlet (222) of the air blasting channel (22) is connected to the inner cavity of the water tank (1) through the first through hole (11); In addition to the breathing inlet (211) and the exhaust port (222) being connected to the inner cavity of the water tank (1) through the first through hole (11), the path of the breathing channel (21) does not intersect with the path of the blast channel (22), so as to ensure that the outside air can smoothly enter the water tank (1) through the blast channel (22), and the air in the water tank (1) can be smoothly discharged to the outside through the breathing channel (21); The air blowing device (2) comprises a housing (23) and an air guide assembly (24) installed outside the housing (23); The breathing passage (21) is formed in the shell (23), the breathing inlet (211) and the breathing outlet (212) are both located on the shell (23), and the breathing inlet (211) is arranged toward the water tank (1); The housing (23) has an air outlet (222) disposed opposite to and in communication with the breathing inlet (211); the air intake (221) is located on the housing (23) or the air guide component (24), so that the air blast channel (22) is formed between the inner cavity of the housing (23) and the air guide component (24), or is directly formed in the air guide component (24); The air blast channel (22) comprises a front air duct (223) and a rear air duct (224); the front air duct (223) is formed in the shell (23); one end of the front air duct (223) is the air inlet (221); and the other end of the front air duct (223) is a transfer port (2321) provided on the shell (23); The rear air duct (224) is formed in the air guide component (24); one end of the air guide component (24) is connected to the transfer port (2321), and the other end is connected to the air outlet (222); A non-return assembly (27) is provided at the air outlet (222) to allow the airflow in the air blast channel (22) to flow into the water tank (1) in a unidirectional manner; It also includes a fastener (3) located in the water tank (1), the fastener (3) passes through the first through hole (11) and is connected to the breathing inlet (211), and the fastener (3) has a plurality of air holes.

2. The air-drying sink dishwasher according to claim 1, characterized in that: The air guide assembly (24) comprises a fan (241) and an air guide shell (242); the inlet of the fan (241) is connected to the adapter (2321); one end of the air guide shell (242) is connected to the outlet of the fan (241), and the other end is connected to the exhaust port (222).

3. The air-drying sink dishwasher according to claim 2, characterized in that: A heater (243) is provided in the air guide shell (242).

4. The air-drying type sink dishwasher according to claim 1, characterized in that: The housing (23) also has a water inlet channel (25) and a flow meter (26) disposed in the water inlet channel (25); one end of the water inlet channel (25) is used to communicate with an external water source, and the other end is communicated with the breathing inlet (211).

5. The air-drying sink dishwasher according to any one of claims 1 to 4, characterized in that: An air suction component (28) is installed at the air suction port (221), and the air suction component (28) comprises an air suction plate (281), and the air suction plate (281) has a plurality of air suction holes.

6. The air-drying sink dishwasher according to claim 5, characterized in that: The air suction assembly (28) further comprises an air suction seat (282), wherein the air suction seat (282) is arranged below the table top (12), the air suction plate (281) passes through the second through hole (121) to be connected to the air suction seat (282), and the air suction seat (282) is inserted into the air suction port (221).

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