CN111407194B

CN111407194B - Overflow, exhaust and soft water integrated module

Info

Publication number: CN111407194B
Application number: CN201910008452.7A
Authority: CN
Inventors: 刁硕; 侯修群; 徐慧
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-01-04
Filing date: 2019-01-04
Publication date: 2023-07-21
Anticipated expiration: 2039-01-04
Also published as: CN111407194A

Abstract

The invention discloses an overflow, exhaust and soft water integrated module, which comprises a main body and a cover plate covered on the main body, wherein the bottom of the main body protrudes downwards to form a distribution bin, a resin bin is formed at the lower part of the main body, one side of the main body is also provided with an overflow port, an air vent and a water inlet which are mutually isolated, the resin bin is communicated with the water inlet, the bottom of the main body is provided with a first water inlet, a soft water runner which is communicated with the first water inlet and the resin bin is arranged in the main body, the soft water runner is communicated with the resin bin, the soft water runner is provided with a caliber-reducing section, and the distributor is arranged at the downstream of the caliber-reducing section of the soft water runner and can be communicated with the soft water runner in a unidirectional way due to negative pressure generated by the caliber-reducing section. Compared with the prior art, the invention has the advantages that: the soft water flow channel can form negative pressure to automatically control the rinsing agent in the dispenser to enter soft water, so that the suction quantity of the rinsing agent can be well controlled, and the rinsing agent is not influenced by saturated vapor pressure and other external influences.

Description

Overflow, exhaust and soft water integrated module

Technical Field

The invention relates to a cleaning machine, in particular to an overflow, exhaust and soft water integrated module with a distributor for the cleaning machine.

Background

In a washing machine having a dish washing function, since water is heated in a washing machine stage, scale is easily formed on the inner wall of a dish washer and the surface of an electric element when the hardness of water exceeds 60ppm, and as the number of times of use of the washing machine increases, accumulation of scale becomes more and more, so that the water used in the washing machine needs to be softened.

In addition, when washing dishes, it is generally necessary to use a rinsing agent (dishwashing powder, dish-brightening agent, etc.), which results in the need to provide a rinsing and dispensing part of the rinsing agent in the dishwasher, and the installation of the water softener and the respirator in the dishwasher, if they are installed separately, may result in a complicated internal structure of the dishwasher.

Therefore, the device integrating soft water and distribution functions is provided, the occupied space is reduced, and the whole structure assembly of the cleaning machine is simplified. The utility model provides a soft water breathes distribution all-in-one for dish washing equipment is disclosed to chinese patent application number 201810811603.8, includes the main part that forms by bottom and top cap, and the main part is provided with the delivery port, and the main part includes salt chamber, resin chamber, main water inlet channel, hard water inlet channel, salt chamber water inlet channel, resin chamber water inlet channel, soft water inlet channel, and main water inlet channel has set gradually first solenoid valve and second solenoid valve from the low reaches to the high reaches, and salt chamber and resin chamber are linked together. The main body also comprises a powder flushing water channel, and a third electromagnetic valve is used for controlling water flow to enter the powder flushing water channel or the soft water inlet channel to flow to the water inlet; the main part is provided with the distributor, and the liquid outlet of distributor is linked together with the powder container.

The whole assembly of the integrated machine is controlled by four electromagnetic valves, wherein three electromagnetic valves respectively control different waterways to realize different functions, and the fourth electromagnetic valve controls the opening and closing of the bright disc agent, so that the control is complex; the control system of the distributor is an electromagnetic valve, when the rinse agent is needed in the cleaning process, the electromagnetic valve is started to enable the rinse agent to flow into the water channel by gravity, the rinse agent is brought into the cleaning cavity by utilizing water flow, and the saturated vapor pressure during working enables the capacity of the rinse agent to be uncontrollable.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art, and provides an overflow, exhaust and soft water integrated module which is simple and reliable to control.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an overflow, exhaust and soft water integrated module, includes main part and covers the apron in the main part, thereby the bottom of main part is protruding downwards and is formed the distributor, the lower part of main part is formed with the resin storehouse, gap, bleeder vent and the water inlet of mutual isolation have still been seted up to one side of main part, resin storehouse and water inlet intercommunication, its characterized in that: the soft water distributor is characterized in that a first water inlet is formed in the bottom of the main body, a soft water runner which is communicated with the first water inlet and the resin bin is arranged in the main body, the soft water runner is communicated with the resin bin, the soft water runner is provided with a caliber reducing section, and the distributor is arranged at the downstream of the caliber reducing section of the soft water runner and can be communicated with the soft water runner in a one-way due to negative pressure generated by the caliber reducing section.

In order to prevent water in the soft water flow passage from entering the distributor, a non-return piece is arranged at the communication part of the soft water flow passage and the distributor.

For can reducing the resin storehouse, the upper portion of main part is formed with the salt storehouse, the second water inlet has still been seted up to the bottom of main part, be provided with the reduction runner with second water inlet and salt storehouse intercommunication in the main part, reduction runner and soft water runner keep apart, the selectivity intercommunication between salt storehouse and the resin storehouse.

Preferably, the salt bin and the resin bin are selectively communicated in such a way that a reducing inlet is arranged on a passage between the salt bin and the resin bin, and a non-return floater capable of closing or opening the reducing inlet is arranged at the reducing inlet.

Preferably, the non-return float is located downstream of the soft water flow passage and is pushed by the water flow from the soft water flow passage to close the reduction inlet.

In order to facilitate adding salt into the salt bin, a salt adding port is formed in a position, corresponding to the salt bin, of the main body, and a salt bin cover is arranged at the salt adding port.

In order to conveniently control the opening and closing of the first water inlet and the second water inlet and adjust the pressure of the soft water flow channel, the device further comprises a double-outlet electromagnetic valve and a pressure regulating valve, wherein two outlets of the double-outlet electromagnetic valve are respectively corresponding to the first water inlet and the second water inlet, and the pressure regulating valve is respectively connected with the water inlet pipe and the double-outlet electromagnetic valve.

Preferably, the main body is provided with a top wall, a bottom wall, a first side wall, a second side wall and a third side wall, wherein the first side wall and the second side wall are respectively connected between two ends of the top wall and the bottom wall, the third side wall is arranged on one side of the main body far away from the cover plate, the top wall, the bottom wall, the first side wall and the second side wall respectively extend between the third side wall and the cover plate, and the overflow port, the ventilation hole and the water inlet are formed in the third side wall of the main body and are positioned between the salt bin and the first side wall.

Preferably, the bottom wall of the main body comprises a first wall formed by transversely extending a certain distance from the bottom end of the first side wall to the direction of the second side wall, a second wall formed by bending the tail end of the first wall away from the first side wall downwards and extending a certain distance, and a third wall transversely extending from the bottom end of the second wall to the direction of the second side wall, wherein the third wall is connected with the second side wall, the distributor is arranged below the third wall, the first water inlet and the second water inlet are formed at the end part, close to the second wall, of the third wall, the first water inlet is closer to the second wall than the second water inlet, and the distributor is arranged between the second water inlet and the second side wall.

Compared with the prior art, the invention has the advantages that: the soft water flow channel can form negative pressure to automatically control the rinsing agent in the dispenser to enter soft water, so that the suction quantity of the rinsing agent can be well controlled, and the rinsing agent is not influenced by saturated vapor pressure and other external influences.

Drawings

FIG. 1 is a schematic diagram of an overflow, exhaust and soft water integrated module applied to a cleaning device according to an embodiment of the invention;

FIG. 2 is a schematic diagram of an overflow, exhaust and soft water integrated module applied to a cleaning device according to an embodiment of the invention;

FIG. 3 is a schematic diagram of an integrated module for water overflow, air removal and softening according to an embodiment of the invention;

FIG. 4 is a schematic diagram showing an exploded structure of an integrated module for water overflow, air exhaust and soft water according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a main body of an overflow, exhaust and soft water integration module according to an embodiment of the invention;

FIG. 6 is an enlarged schematic view of portion I of FIG. 5;

FIG. 7 is a schematic diagram showing a normal operation state of the water overflowing, exhausting and softening integrated module according to the embodiment of the present invention;

fig. 8 is a schematic diagram illustrating a reduction state of the water overflowing, exhausting and softening integrated module according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

Referring to fig. 1 and 2, a cleaning apparatus includes a first tub 200 and a second tub 300 arranged in parallel, wherein the first tub 200 is a tub type cleaning machine, the second tub 300 is a general household tub, an overflow, exhaust and soft water integration module 100 with a dispenser is provided between the first tub 200 and the second tub 300, a drain assembly is shared with the first tub 200 and the second tub 300, and the overflow, exhaust and soft water integration module 100 is also communicated with the inside of the first tub 200.

Referring to fig. 3 to 8, the water overflowing, exhausting and softening integrated module 100 includes a main body 1 and a cover plate 2 covering the main body 1 such that a cavity is formed between the main body 1 and the cover plate 2. The side of the main body 1 is connected with an overflow pipe 3 and an exhaust pipe 4, the bottom surface of the main body 1 is connected with a water inlet pipe 5, and the overflow pipe 3, the exhaust pipe 4 and the water inlet pipe 5 are all connected on the surface of the main body 1 adjacent to the cover plate 2 and communicated with the cavity.

The bottom of the main body 1 protrudes downward to form the dispenser 12, the lower portion of the main body 1 is formed with a resin compartment 15, and the upper portion of the main body 1 is formed with a salt compartment 143. In the present embodiment, the main body 1 has a top wall 111, a bottom wall 112, a first side wall 113 and a second side wall 114 respectively connected between both ends of the top wall 111 and the bottom wall 112, and a third side wall 115 provided on a side of the main body 1 remote from the cover plate 2, the top wall 111, the bottom wall 112, the first side wall 113 and the second side wall 114 respectively extending between the third side wall 115 and the cover plate 2. The top wall 111 and the bottom wall 112 are opposite, and the first side wall 113 and the second side wall 114 are opposite.

The bottom wall 112 of the main body 1 includes a first wall 1121 extending laterally a predetermined distance from the bottom end of the first side wall 113 toward the second side wall 114, a second wall 1122 extending downwardly from the end of the first wall 1121 remote from the first side wall 113 and bent a predetermined distance, and a third wall 1123 extending laterally from the bottom end of the second wall 1122 toward the second side wall 114, the third wall 1123 being connected to the second side wall 114. A dispenser 12 is provided below the third wall 1123, the third wall 1123 acting as a top wall of the dispenser 12.

The end of the third wall 1123 adjacent to the second wall 1122 is provided with a first water inlet 1124 and a second water inlet 1125, respectively, arranged in parallel, wherein the first water inlet 1124 is closer to the second wall 1122 than the second water inlet 1125. The dispenser 12 is positioned between the second water inlet 1125 and the second sidewall 114.

A first partition plate 131 is disposed above the third wall 1123, one end of the first partition plate 131 is connected between the first water inlet 1124 and the second water inlet 1125 on the third wall 1123, the first partition plate 131 extends laterally from the one end toward the second side wall 114 until being close to the second side wall 114, then bends upward to extend a certain distance to form a second partition plate 132, the top end of the second partition plate 132 bends downward to extend a certain distance away from the second side wall 114, the end of the second partition plate 132 bends downward to extend a certain distance away from the second side wall 114, then bends laterally toward the first side wall 113 until being close to the first side wall 113, then bends toward the top wall 111 of the main body 1 until being close to the top wall 111, thereby forming a third partition plate 133, and a certain distance is provided between the third partition plate 133 and the top wall 111 to form an opening. A fourth partition 134 bent in the same manner as the third partition 133 and disposed at a certain interval is further provided in the main body 1, wherein one end of the fourth partition 134 is connected to the top wall of the main body 1, and the other end is spaced apart from the lateral extension portion of the second partition 132 by a certain distance to form a reduction port 1344.

The salt bin partition plate 141 is arranged above the transversely extending portion of the second partition plate 132, the salt bin partition plate 141 extends from the second side wall 114 to the first side wall 113 for a certain distance and then bends downwards for a certain distance, a certain interval is arranged between the salt bin partition plate 141 and the second side wall 113 and between the salt bin partition plate 141 and the third partition plate 133, and a salt bin grid plate 142 is arranged between the bottom end of the salt bin partition plate 141 and the portion of the third partition plate 133 close to the first side wall 113, so that a salt bin 143 is formed between the third partition plate 133, the salt bin partition plate 141, the salt bin grid plate 142 and the top wall 111 and the bottom wall 112 of the part of the main body 1, and an interval is arranged between the salt bin 143 and the transversely extending portion of the third partition plate 133. A salt adding port 1154 is formed in the third side wall 115 of the main body 1 at a position corresponding to the salt bin 143, and a salt bin cover 144 is provided at the salt adding port 1154 so as to open or close the salt bin 143.

A resin bin 15 is arranged on the main body 1 and below the fourth partition 134, a resin bin grid plate 151 is arranged at the bottom of the resin bin 15, and one side opening of the resin bin 15 and the first side wall 113 is communicated with the space below the fourth partition 134 and between the fourth partition 134 and the first side wall 113. The resin compartment partition plate 152 is formed by extending upward one end of the resin compartment grid plate 151 adjacent to the second side wall 114, and the top end of the resin compartment partition plate 152 is connected to the fourth partition plate 1134.

The first wall 1121 of the bottom wall 112 is provided with a fifth baffle 135 at an end thereof remote from the first side wall 111, the fifth baffle 135 extending laterally from the end of the first wall 1121 toward the second side wall 114 and being bent upwardly a distance adjacent to the second baffle 132. The fifth partition 135 is spaced below the resin compartment grid plate 151.

The second partition 132 is formed with a first guide plate 1321 extending toward the resin tank 15 at a position corresponding to the resin tank 15 on a side away from the second side wall 114, the end of the fifth partition 135 (a position corresponding to the resin tank 15) away from the first wall 1121 is formed with a second guide plate 1351 extending toward the resin tank 15, and the first guide plate 1321 is located above the second guide plate 1351, whereby a soft water inlet 1352 is formed between the first guide plate 1321 and the second guide plate 1351. The resin compartment divider 152 and the two guide plates have a space therebetween so that the soft water inlet 1352 communicates with the resin compartment 15.

A transversely extending baffle plate 1341 is connected between the position of the fourth baffle plate 134 near the longitudinal extension of the second baffle plate 132 and the second baffle plate 132, a reduction inlet 1342 is formed on the baffle plate 1341, a non-return float 1343 is arranged below the baffle plate 1341, the non-return float 1343 is arranged above the first guide plate 1321, and the reduction inlet 1342 is communicated with the reduction inlet 1344 and the soft water inlet 1352.

The dispenser 12 is a rinse agent reservoir and includes a rear plate 121, and the rear plate 121 extends upward above the first partition 131 to be connected to the third side wall 115 of the main body 1. A dispenser cover 122 is provided at a position of the dispenser 12 below the second side wall 114 to open or close the dispenser 12.

A check tab 1353 is provided between the fifth separator 135 and the longitudinally extending portion of the second separator 132, the check tab 1353 being provided on the rear panel 121 of the dispenser 12. That is, the check sheet 1353 is provided on the passage of the space between the dispenser 12 and the second and fifth separators 132, 135.

The third side wall 115 of the main body 1 is provided with an overflow port 1151, an air vent 1152 and a water inlet 1153, the openings are positioned between the salt bin 14 and the first side wall 113 and above the resin bin 15, and the openings are separated from each other by a partition plate. Water inlet 1153 is in communication with the interior of resin cartridge 15. The overflow port 1151, the air vent 1152, the water inlet 1153 and the salt adding port 154 are all communicated with the first water tank 200.

The water overflow, exhaust and soft water integration module 100 further includes a double outlet solenoid valve 6 and a pressure regulating valve 7, wherein the double outlet solenoid valve 6 is disposed below the third wall 1123 of the bottom wall 112, and two outlets thereof correspond to the first water inlet 1124 and the second water inlet 1125, respectively. The water inlet pipe 5 is connected to a pressure regulating valve 7, the other end is connected to a water inlet solenoid valve (not shown), and the pressure regulating valve 7 is connected to a double outlet solenoid valve 6. The overflow pipe 3 communicates with the overflow port 1151, and one end of the exhaust pipe 4 communicates with the ventilation hole 1152, and the other end of the exhaust pipe 4 communicates with the drainage assembly 400 of the whole machine.

When the first water tank 200 as the cleaning machine is operated, the steam generated by the hot water may reduce the operation capacity of the cleaning machine, and the ventilation holes 1152 are provided to connect the exhaust pipe 4 with the drain assembly 400 of the whole machine, and finally, the steam is discharged from the second water tank 300, so that the cleaning machine operates normally with high performance.

When the cleaning machine is in an abnormal working state, the drain valve is in a closed state, and large water flow continuously flows into the first water tank 200, when the water floods the overflow port 1151, the water flows into the overflow pipe 3 through the overflow port 1151, air in the discharge pipe forms siphonage, water above the overflow port 1151 in the first water tank 200 is accelerated to be discharged, and water is prevented from overflowing from the upper part of the first water tank 200 and flowing into the external space of the cleaning machine.

A soft water flow passage Q1 is formed between the first partition plate 131 and the fifth partition plate 135 (in the transverse direction), and between the second partition plate 132 and the fifth partition plate 135 (in the longitudinal direction); the first partition plate 131 and the third wall 1123 and the second partition plate 132 and the second side wall 114 form a reduction flow path Q2 communicating therebetween. The soft water flow passage Q1 is formed in such a manner that the diameter of the portion between the first partition plate 131 and the fifth partition plate 135 is gradually reduced toward the second side wall 114 to form a diameter-reduced section Q1. The check sheet 1353 is disposed between the longitudinal portion of the soft water flow path Q1 and the dispenser 12 (near the lateral portion, e.g., the bottom of the longitudinal portion, downstream of the reduced diameter portion Q11) so that the dispenser 12 is in unidirectional communication with the soft water flow path Q1, i.e., only the rinse agent in the dispenser 12 can be caused to enter the soft water flow path Q1 unidirectionally, while the water in the soft water flow path Q1 cannot enter the soft water flow path Q1.

When the first water tank 200 as the cleaning machine starts the cleaning operation, referring to fig. 7, the arrow indicates the water flow direction, the double outlet solenoid valve 6 closes the second water inlet 1125, the first water inlet 1124 is opened, the water flow enters the soft water flow passage Q1 through the water inlet pipe 5, then flows into the resin compartment 15 through the soft water inlet 1352, and enters the first water tank 200 through the water inlet 1153; at the same time, the non-return float 1343 is lifted by the water flow to close the return inlet 1342, thereby preventing normal soft water flow from flowing upward into the salt bin 14. When the rinse agent is needed in the cleaning process, the pressure regulating valve 7 starts the water supply pressurization when the cleaning machine is used for water feeding, the caliber of the soft water flow passage Q1 is reduced, the water flow speed is increased, the pressure is reduced, negative pressure is formed, the rinse agent is forced to be sucked into the soft water flow passage Q1 by the negative pressure, and finally the rinse agent enters the first water tank 200. The suction amount of the rinse agent is controlled by the pressure change of the pressure regulating valve 7, and a check sheet 1353 is provided in the passage between the dispenser 12 and the soft water flow path Q1 to prevent the normal water flow from flowing backward into the dispenser 12.

When the resin in the resin chamber 15 runs out, the washer is operated, the arrow shows the water flow direction, the double outlet solenoid valve 6 is started, the first water inlet 1124 is closed by the double outlet solenoid valve, the second water inlet 1125 is opened, the water flow passes through the reduction flow passage Q2 to enter the salt chamber 14 from the gap between the second partition 132 and the salt chamber partition 12 and finally passes through the salt chamber grid plate 142, and at this time, the non-return float 1343 is not pressed upward by the water flow to leave the reduction inlet 1342, so that the reduction inlet 1342 is opened. The water flow in which the salt is dissolved enters the gap between the third partition plate 133 and the fourth partition plate 134 from the opening between the third partition plate 133 and the top wall 111 of the salt compartment 14, and enters the space between the fifth partition plate 135 and the resin compartment 15 through the reduction inlet 1342 from the reduction port 1344, and then enters the resin compartment 15 to perform the reduction work, while part of the water flow reduces the flow passage Q2, thereby entering the space between the second partition plate 132 and the third partition plate 133, and flows into the salt compartment 143 through the salt compartment grid plate 142, and then enters the space between the third partition plate 133 and the fourth partition plate 134, and enters the resin compartment 15 through the reduction inlet 1342 to perform the reduction work.

Claims

1. The utility model provides an overflow, exhaust and soft water integrated module, includes main part (1) and covers apron (2) on main part (1), thereby the bottom of main part (1) is protruding downwards and is formed distributor (12), the lower part of main part (1) is formed with resin storehouse (15), gap (1151), bleeder vent (1152) and water inlet (1153) isolated each other have still been seted up to one side of main part (1), resin storehouse (15) and water inlet (1153) intercommunication, its characterized in that: the soft water flow channel is characterized in that a first water inlet (1124) is formed in the bottom of the main body (1), a soft water flow channel (Q1) which is used for communicating the first water inlet (1124) with a resin bin (15) is arranged in the main body (1), the soft water flow channel (Q1) is communicated with the resin bin (15), the soft water flow channel (Q1) is provided with a caliber reducing section (Q11), the distributor (12) is arranged at the downstream of the caliber reducing section (Q11) of the soft water flow channel (Q1) and can be in one-way conduction with the soft water flow channel (Q1) due to negative pressure generated by the caliber reducing section (Q11), and the communicating part of the soft water flow channel (Q1) and the distributor (12) is arranged at the bottom of the longitudinal part of the soft water flow channel (Q1) and is arranged at the downstream of the caliber reducing section (Q11).

2. The water overflow, exhaust and soft water integration module of claim 1, wherein: a non-return piece (1353) is arranged at the communication part of the soft water flow passage (Q1) and the distributor (12).

3. The water overflow, exhaust and soft water integration module of claim 1, wherein: the salt bin (143) is formed on the upper portion of the main body (1), the second water inlet (1125) is further formed in the bottom of the main body (1), a reduction runner (Q2) which is used for communicating the second water inlet (1125) with the salt bin (143) is arranged in the main body (1), the reduction runner (Q2) is isolated from the soft water runner (Q1), and the salt bin (143) is selectively communicated with the resin bin (15).

4. The water overflow, exhaust and soft water integration module of claim 3, wherein: a reducing inlet (1342) is arranged on a passage between the salt bin (143) and the resin bin (15), and a non-return float (1343) capable of closing or opening the reducing inlet (1342) is arranged at the reducing inlet (1342).

5. The water overflow, exhaust and soft water integration module of claim 4, wherein: the non-return float (1343) is located downstream of the soft water flow path (Q1) and is pushed by the water flow from the soft water flow path (Q1) to close the return inlet (1342).

6. The water overflow, exhaust and soft water integration module of claim 3, wherein: salt adding ports (1154) are formed in positions, corresponding to the salt bins (143), of the main body (1), and salt bin covers (144) are arranged at the salt adding ports (1154).

7. The water overflow, exhaust and soft water integration module according to any one of claims 3 to 6, characterized in that: the water inlet valve further comprises a double-outlet electromagnetic valve (6) and a pressure regulating valve (7), wherein two outlets of the double-outlet electromagnetic valve (6) are respectively corresponding to the first water inlet (1124) and the second water inlet (1125), and the pressure regulating valve (7) is respectively connected with the water inlet pipe (5) and the double-outlet electromagnetic valve (6).

8. The water overflow, exhaust and soft water integration module according to any one of claims 3 to 6, characterized in that: the main body (1) is provided with a top wall (111), a bottom wall (112), a first side wall (113) and a second side wall (114) which are respectively connected between two ends of the top wall (111) and the bottom wall (112), and a third side wall (115) which is arranged on one side of the main body (1) far away from the cover plate (2), wherein the top wall (111), the bottom wall (112), the first side wall (113) and the second side wall (114) respectively extend between the third side wall (115) and the cover plate (2), and the overflow port (1151), the ventilation hole (1152) and the water inlet (1153) are formed on the third side wall (115) of the main body (1) and are positioned between the salt bin (143) and the first side wall (113).

9. The water overflow, exhaust and soft water integration module of claim 8, wherein: the bottom wall (112) of the main body (1) comprises a first wall (1121) formed by transversely extending a certain distance from the bottom end of the first side wall (113) to the direction of the second side wall (114), a second wall (1122) formed by downwards bending the tail end of the first wall (1121) away from the first side wall (113) and extending a certain distance, and a third wall (1123) transversely extending from the bottom end of the second wall (1122) to the direction of the second side wall (114), wherein the third wall (1123) is connected with the second side wall (114), the distributor (12) is arranged below the third wall (1123), the first water inlet (1124) and the second water inlet (1125) are formed at the end, close to the second wall (1122), of the third wall (1123), the first water inlet (1124) is closer to the second wall (1122) than the second water inlet (1125), and the distributor (12) is arranged between the second water inlet (1125) and the second side wall (114).