Switching valve assembly, putting device of washing equipment and washing equipment

Abstract

The invention discloses a switching valve assembly, a putting device of washing equipment and the washing equipment, the switching valve assembly comprises a switching valve, the switching valve comprises a switching cavity, a plurality of liquid inlet flow channels and a plurality of liquid outlet flow channels, the switching cavity is provided with a plurality of liquid inlets communicating with the liquid inlet flow channels in a one-to-one correspondence mode and a plurality of liquid outlets communicating with the liquid outlet flow channels, a switching assembly is arranged in the switching cavity and used for controlling any liquid inlet and any liquid outlet to be opened at the same time. By adjusting the switching assembly in the switching cavity, any liquid inlet and any liquid outlet can be opened at the same time, then any liquid inlet flow channel can communicate with the liquid outlet flow channel through the switching cavity, and therefore the feeding device can feed various additives only through one infusion pump under the action of the switching valve, and the user experience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular relates to a switching valve assembly, a dispensing device for washing equipment, and washing equipment. Background Art

[0002] Washing equipment is a general term for household appliances that have the function of washing or washing and drying, such as washing machines, washer-dryers, etc. The detergent dispensing module refers to the module used to dispense detergent into the washing equipment. Detergents include laundry detergent, softener, bleach, etc. Most washing equipment is equipped with a dispensing module, which includes a dispensing box. The dispensing box is connected to the water drum of the washing equipment and is used to dispense detergent into the water drum. Specifically, the user pre-dispenses the detergent into the dispensing box, and then dispenses the detergent into the water drum of the washing equipment through the dispensing box. That is, the current process of dispensing detergent requires user participation, and it is impossible to fully realize the automatic dispensing of detergents.

[0003] In order to realize the automatic dispensing of detergent, the existing dispensing module also includes a liquid pump, which uses the liquid pump to extract the detergent from the box and send it into the water inlet channel. The water passing through the water inlet channel then brings the detergent into the water drum of the washing machine. The liquid pump of the dispensing module usually corresponds one-to-one to the detergent that needs to be dispensed. Therefore, if detergents with different functions are to be dispensed, the dispensing module generally needs to be equipped with several liquid pumps. It is impossible to use only one liquid pump to achieve the dispensing of detergents with different functions, which reduces the user experience.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a switching valve assembly, a dispensing device for washing equipment, and washing equipment. By adjusting the switching assembly in the switching chamber, any liquid inlet and any liquid outlet can be opened simultaneously, thereby allowing any liquid inlet flow channel to communicate with the liquid outlet flow channel through the switching chamber. This allows the dispensing device to dispense multiple additives using only a single liquid pump under the action of the switching valve, thereby improving the user experience.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] The present invention provides a switching valve assembly, including a switching valve, which includes a switching chamber, a plurality of liquid inlet channels and a liquid outlet channel. The switching chamber has a plurality of liquid inlets connected to the liquid inlet channels in a one-to-one correspondence and a plurality of liquid outlets connected to the liquid outlet channels. A switching assembly is provided in the switching chamber for controlling any liquid inlet and any liquid outlet to be opened at the same time.

[0008] Furthermore, the switching cavity is cylindrical, and a plurality of liquid inlets and a plurality of liquid outlets are provided on an end surface of the switching cavity and distributed along the circumference of the switching cavity. The plurality of liquid outlets are centrally arranged to form a liquid outlet area, the liquid outlet flow channel covers the liquid outlet area, and the plurality of liquid inlets are provided outside the liquid outlet area.

[0009] Preferably, the switching cavity is cylindrical, with several liquid inlets and several liquid outlets evenly distributed, the number of liquid inlets is equal to the number of liquid outlets, each liquid inlet corresponds to a liquid outlet, and the line connecting the liquid inlet and the corresponding liquid outlet passes through the center of the end face of the switching cavity.

[0010] Furthermore, the switching assembly includes a main shaft, a moving plate, and a stationary plate disposed in the switching chamber. The main shaft includes a support plate and a transmission shaft disposed on the bottom surface of the support plate. The top surface of the support plate is provided with a liquid storage tank communicating with the switching chamber. The side and top surfaces of the liquid storage tank are open. The lower end of the transmission shaft is connected to the drive assembly through the transmission assembly.

[0011] The moving plate is fixed on the top surface of the main shaft, and is provided with two lower switching ports that pass through the moving plate and are connected to the liquid storage tank; the static plate is arranged opposite to the moving plate, and smooth static sealing surfaces are provided on the opposite end surfaces of the moving plate and the static plate; the static plate is provided with a plurality of upper switching ports, and the plurality of upper switching ports are arranged corresponding to the plurality of liquid inlets and the plurality of liquid outlets.

[0012] Furthermore, it also includes an adapter, which includes a connecting seat, a common flow channel and several liquid flow channels corresponding one to one with the liquid inlet flow channel. The common flow channel is connected to the liquid outlet of the liquid outlet flow channel, and the liquid flow channel is connected to the liquid inlet of the corresponding liquid inlet flow channel.

[0013] Furthermore, the plurality of liquid flow channels include a flushing flow channel and two additive flow channels, the additive flow channel extends horizontally through the connecting seat, the flushing flow channel and the common flow channel extend vertically above the additive flow channel, the water inlet of the flushing flow channel and the liquid outlet of the common flow channel are suspended above the connecting seat, and the water outlet of the flushing flow channel and the liquid inlet of the common flow channel are provided on the connecting seat;

[0014] Preferably, a cylindrical first protrusion is formed on one side of the connecting seat, and through holes are respectively provided on the end surface of the free end of the first protrusion and the connecting seat. The through hole of the first protrusion, the through hole of the connecting seat and the inside of the first protrusion form an additive flow channel, and the through hole of the first protrusion and the through hole of the connecting seat serve as the liquid inlet and liquid outlet of the additive flow channel respectively.

[0015] Preferably, the liquid inlet and liquid outlet of the additive flow channel are circular and non-coaxially arranged, the liquid inlet of the additive flow channel is coaxially arranged with the additive flow channel, the radial dimension of the liquid inlet of the additive flow channel is larger than the radial dimension of the liquid outlet, and the axis of the liquid inlet of the additive flow channel is located above the axis of the liquid outlet.

[0016] Furthermore, a plurality of buffer ribs are provided on the inner peripheral wall of the additive flow channel, and the plurality of buffer ribs are distributed at intervals along the circumference of the additive flow channel and arranged in a circle;

[0017] Preferably, the buffer ribs are long strips, extending from the liquid inlet of the additive flow channel to the connection with the connecting seat; the protruding lengths of all buffer ribs are equal, some buffer ribs protrude to the liquid outlet of the additive flow channel, and there is a distance between the remaining buffer ribs and the liquid outlet of the additive flow channel.

[0018] Furthermore, the end surface of the free end of the first protrusion is provided with an axially extending first plug-in protrusion and a first plug-in groove, and the additive flow channel inlet, the first plug-in protrusion and the first plug-in groove are coaxial and arranged from the inside to the outside;

[0019] Preferably, a cylindrical guide member is provided at the liquid inlet of the additive flow channel, and a guide flow channel is formed inside the guide member and is coaxial with the additive flow channel;

[0020] Preferably, an axially extending second plug-in protrusion and a second plug-in groove are provided on the end face of the guide member. The liquid outlet of the guide channel, the second plug-in groove and the second plug-in protrusion are coaxial and arranged from the inside to the outside. The first plug-in protrusion is inserted into the second plug-in groove, and the second plug-in protrusion is inserted into the first plug-in groove. The end face of the guide member abuts against the buffer rib.

[0021] Furthermore, a second cylindrical protrusion is coaxially provided on the outer periphery of the additive flow channel outlet, through holes are respectively provided at both ends of the second protrusion, and an inserting cavity is formed inside the second protrusion;

[0022] A third cylindrical plug-in protrusion coaxial with the liquid inlet of the liquid inlet channel is provided on the outside of the switching valve. The third plug-in protrusion is inserted into the plug-in cavity, and a first sealing ring is provided between the third plug-in protrusion and the plug-in cavity.

[0023] Furthermore, there are two first protrusions, and a cylindrical third protrusion is provided directly above each first protrusion. The free end of the third protrusion is a closed end. A buffer cavity is formed inside the third protrusion. The connecting seat is provided with a through hole communicating with the buffer cavity. The flushing channel water inlet and the common channel liquid inlet are respectively provided at the top of the outer periphery of the two third protrusions and communicate with the corresponding buffer cavity.

[0024] Preferably, a cylindrical fourth protrusion is provided at the top of the outer periphery of each third protrusion, the fourth protrusion extends upward to exceed the top of the connecting seat, and through holes are respectively provided at the top and bottom of the fourth protrusion, and the through holes of the two fourth protrusions and the interior of the fourth protrusion form a flushing flow channel or a common flow channel, and the two through holes of the fourth protrusion serve as the water inlet and outlet of the flushing flow channel or the liquid inlet and outlet of the common flow channel;

[0025] Preferably, a fourth cylindrical plug-in protrusion coaxial with the liquid outlet of the liquid outlet channel is provided on the outside of the switching valve, and the fourth plug-in protrusion is inserted into the buffer cavity, and a second sealing ring is provided between the buffer cavity.

[0026] The present invention also provides a delivery device for washing equipment, comprising a delivery box and a switching valve assembly provided by the above technical solution, wherein the switching valve is provided on the delivery box via an adapter and is connected to the delivery box via various flow channels of the adapter;

[0027] Preferably, the guide member is a bellows, and a cylindrical positioning protrusion is provided on the outside of the delivery box and is connected to the delivery box body. The end surface of the free end of the positioning protrusion is provided with a positioning groove coaxial with the guide flow channel. The guide flow channel passes through the positioning groove and is inserted into the positioning protrusion. The end of the guide member is embedded in the positioning groove and clamped between the bottom of the positioning groove, the bottom of the first plug-in groove, and the first plug-in protrusion.

[0028] Preferably, the top of the fourth protrusion is provided with several depressions coaxial with the liquid outlet channel, the lid of the delivery box protrudes downward to form a fifth protrusion connected to the lid, and the channel formed by the fourth protrusion is inserted into the fifth protrusion and abuts against the inner wall of the fifth protrusion.

[0029] The present invention also provides a washing device, which is provided with the washing device placing device provided by the above technical solution.

[0030] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0031] By adjusting the switching component in the switching chamber, any liquid inlet and any liquid outlet can be opened at the same time, so that any liquid inlet channel can be connected with the liquid outlet channel through the switching chamber. As a result, the dosing device can use only one liquid pump under the action of the switching valve to dispense multiple additives, thereby improving the user experience.

[0032] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0034] Figure 1 1 is a schematic structural diagram of a dispensing device for a washing machine provided in an embodiment of the present invention;

[0035] Figure 21 is a schematic structural diagram of a switching valve assembly provided by an embodiment of the present invention;

[0036] Figure 3 This is a schematic structural diagram of a switching valve provided by an embodiment of the present invention from one perspective;

[0037] Figure 4 is a structural schematic diagram of a switching valve provided by an embodiment of the present invention from another perspective;

[0038] Figure 5 is an exploded view of a switching valve provided in an embodiment of the present invention;

[0039] Figure 6 Schematic diagram of the assembly of the switching valve and the lid of the delivery box provided by an embodiment of the present invention;

[0040] Figure 7 yes Figure 6 Enlarged view at point A;

[0041] Figure 8 Schematic diagram of the assembly of the switching valve and the delivery box provided by an embodiment of the present invention;

[0042] Figure 9 yes Figure 8 Enlarged view at point B;

[0043] Figure 10 This is a schematic structural diagram of an adapter provided by an embodiment of the present invention from one perspective;

[0044] Figure 11 is a structural schematic diagram of the adapter provided by an embodiment of the present invention from another perspective;

[0045] Figure 12 It is a structural schematic diagram of the adapter provided by an embodiment of the present invention from another perspective.

[0046] Icons: 1- adapter; 11- connector seat; 111- first protrusion; 111a- first plug-in protrusion; 111b- first plug-in groove; 112- second protrusion; 113- third protrusion; 1131- buffer chamber; 114- fourth protrusion; 1141- recess; 12- additive flow channel; 121- liquid outlet of additive flow channel; 122- buffer rib; 131- water inlet of flushing flow channel; 132- water outlet of flushing flow channel; 14- common flow channel; 141- liquid outlet of common flow channel; 142- liquid inlet of common flow channel; 15- fixing hole; 2- switching valve; 21- third plug-in protrusion; 22- fourth plug-in protrusion; 23- switching chamber; 231- The liquid inlet of the switching chamber; 232-the liquid outlet of the switching chamber; 24-the liquid inlet channel; 25-the liquid outlet channel; 24-the switching assembly; 241-the main shaft; 241a-the support plate; 241b-the transmission shaft; 241c-the liquid storage tank; 242-the moving plate; 242a-the lower switching port; 243-the static plate; 243a-the upper switching port; 244-the driving gear; 245-the driven gear; 3-the delivery box; 31-the box body; 311-the positioning protrusion; 312-the positioning groove; 32-the box cover; 321-the fifth protrusion; 4-the guide; 41-the guide channel; 42-the second plug-in protrusion; 43-the second plug-in groove; 44-the radial protrusion; 5-the first sealing ring; 6-the second sealing ring.

[0047] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] like Figure 1-12 As shown, the present invention provides a switching valve 2 component, including a switching valve 2, the switching valve 2 includes a switching chamber 23, a plurality of liquid inlet channels 24, and a liquid outlet channel 25, the switching chamber 23 has a plurality of liquid inlets connected to the liquid inlet channels 24 in a one-to-one correspondence and a plurality of liquid outlets connected to the liquid outlet channels 25, and a switching component 24 is provided in the switching chamber 23 for controlling any liquid inlet and any liquid outlet to be opened at the same time.

[0052] In an embodiment of the present invention, by adjusting the switching component 24 in the switching chamber 23, any liquid inlet and any liquid outlet can be opened at the same time, so that any liquid inlet channel 24 can be connected to the liquid outlet channel 25 through the switching chamber 23, so that the dosing device can use only one liquid pump under the action of the switching valve 2 to dispense multiple additives, thereby improving the user experience.

[0053] The switching valve 2 assembly is used in a dispensing device of a washing machine, which can be a washing machine or a dishwasher, etc. The dispensing device of the washing machine includes a dispensing box 3 and a switching valve 2 assembly. The switching valve 2 is provided on the dispensing box 3 via an adapter 1 described below, and is connected to the dispensing box 3 via various flow channels of the adapter 1 described below.

[0054] The delivery box 3 includes a box body 31 and a box cover 32 arranged above the box body 31. The interior of the box body 31 is hollow to form a liquid storage cavity for storing additives. The interior of the liquid storage cavity is divided into several independent chambers. Each chamber stores a type of additive, which can be detergent, rinse agent, etc.; each chamber corresponds to a liquid inlet channel 24; the box cover 32 is provided with a water supply channel and a delivery channel.

[0055] like Figure 3 As shown, in the embodiment of the present invention, the switching chamber 23 is cylindrical, and a plurality of liquid inlets and a plurality of liquid outlets are provided on the end surface of the switching chamber 23 and distributed along the circumference of the switching chamber 23. The plurality of liquid outlets are centrally arranged to form a liquid outlet area, the liquid outlet channel 25 covers the liquid outlet area, and the plurality of liquid inlets are provided outside the liquid outlet area.

[0056] In the embodiment of the present invention, the switching assembly 24 includes a housing, and a switching cavity 23 is formed in the housing. One end surface of the switching cavity 23 is provided with a plurality of liquid inlets and a plurality of liquid outlets, and the other end surface is open.

[0057] The liquid outlets 232 of several switching chambers share one liquid outlet channel 25; the switching chamber 23 is cylindrical, and the liquid inlets 231 of several switching chambers and the liquid outlets 232 of several switching chambers are evenly distributed. The number of the liquid inlets 231 of the switching chamber is equal to the number of the liquid outlets 232 of the switching chamber. The liquid inlet 231 of each switching chamber corresponds to the liquid outlet 232 of the switching chamber. The line connecting the liquid inlet 231 of the switching chamber and the corresponding liquid outlet 232 of the switching chamber passes through the center of the circle of the end face of the switching chamber 23, so that each time the switch is performed, the liquid inlet of the switching chamber 23 and the corresponding liquid outlet 232 of the switching chamber are opened, and the remaining liquid inlets of the switching chamber 23 and the remaining liquid outlets of the switching chamber 23 are closed.

[0058] like Figure 3-5 As shown, the switching assembly 24 further includes a main shaft 241, a moving plate 242, and a static plate 243 disposed in the switching chamber 23. The main shaft 241 includes a support plate 241a and a transmission shaft 241b disposed on the bottom surface of the support plate 241a. The top surface of the support plate 241a is provided with a liquid storage tank 241c that communicates with the switching chamber 23. The side and top surfaces of the liquid storage tank 241c are open. The lower end of the transmission shaft 241b is connected to the driving member through a transmission member.

[0059] The movable plate 242 is fixed to the top surface of the main shaft 241. The movable plate 242 is provided with two lower switching ports 242a that pass through the movable plate 242 and communicate with the liquid storage chamber 241c. The static plate 243 is arranged opposite the movable plate 242. The opposing end surfaces of the movable plate 242 and the static plate 243 are provided with smooth static sealing surfaces. The static plate 243 is provided with a plurality of upper switching ports 243a, which are correspondingly provided with a plurality of liquid inlets and a plurality of liquid outlets. The main shaft 241, the movable plate 242, and the static plate 243 are disposed within the switching chamber 23 through an opening provided on the end surface of the switching chamber 23.

[0060] The transmission member includes a driving gear 244 and a driven gear 245 meshing with the driving gear 244. The driven gear 245 is connected to the transmission shaft 241b, and the driving gear 244 is connected to the motor.

[0061] For example, the several liquid inlet pipes of the switching valve 2 include a first liquid inlet pipe for detergent, a second liquid inlet pipe for rinse agent, and a third liquid inlet pipe for flushing water.

[0062] When detergent is added, the transmission member drives the transmission shaft 241b to rotate, and the transmission shaft 241b drives the movable plate 242 to rotate, so that the liquid storage chamber 241c, the switching chamber 23, the two lower switching ports 242a on the movable plate 242, the two upper switching ports 243a on the static plate 243, the liquid inlet 231 of the switching chamber corresponding to the detergent, the liquid outlet 232 of the switching chamber corresponding to the detergent, the first liquid inlet channel 24, and the liquid outlet channel 25 are interconnected.

[0063] The detergent enters the first liquid inlet channel 24 from the chamber in the liquid storage chamber of the delivery box 3, and enters the liquid storage tank 241c in the switching chamber 23 through the corresponding liquid inlet 231 of the switching chamber, an upper switching port 243a, and a lower switching port 242a. The detergent then enters the liquid outlet channel 25 from the liquid storage tank 241c in the switching chamber 23 through another lower switching port 242a, another upper switching port 243a, and the corresponding liquid outlet 232 of the switching chamber, and enters the delivery channel of the box cover 32 from the liquid outlet channel 25, and enters the washing device through the delivery channel. The flow of detergent in the above process is powered by the liquid suction pump.

[0064] like Figure 6-12 As shown, in an embodiment of the present invention, an adapter 1 is also included, which includes a connecting seat 11, a common flow channel 14 and a plurality of liquid flow channels corresponding one to one with the liquid inlet flow channel 24. The common flow channel 14 is connected to the liquid outlet of the liquid outlet flow channel 25, and the liquid flow channel is connected to the liquid inlet of the corresponding liquid inlet flow channel 24.

[0065] In an embodiment of the present invention, specifically, the plurality of liquid flow channels include a flushing flow channel and two additive flow channels 12. The additive flow channel 12 extends horizontally through the connecting seat 11. The flushing flow channel and the common flow channel 14 extend vertically above the additive flow channel 12. The water inlet 131 of the flushing flow channel and the liquid outlet 141 of the common flow channel are suspended above the connecting seat 11. The water outlet 132 of the flushing flow channel and the liquid inlet 142 of the common flow channel are provided on the connecting seat 11.

[0066] When adding detergent, the detergent in the chamber of the liquid storage chamber enters the corresponding liquid inlet channel 24 from the additive flow channel 12 corresponding to the detergent, enters the liquid outlet channel 25 through the switching chamber 23, enters the adding flow channel of the box cover 32 from the common flow channel 14, and finally enters the washing device; when flushing the detergent to prevent detergent residue, the water supply channel of the box cover 32 feeds flushing water into the flushing channel, and the flushing water enters the liquid inlet channel 24, passes through the liquid storage tank 241c and the liquid outlet channel 25 in the switching chamber 23, enters the common flow channel 14, and finally enters the washing device.

[0067] Specifically, a cylindrical first protrusion 111 is formed on one side of the connecting seat 11, and a through hole is respectively provided on the end surface of the free end of the first protrusion 111 and the connecting seat 11. The through hole of the first protrusion 111, the through hole of the connecting seat 11 and the interior of the first protrusion 111 form an additive flow channel 12, and the through hole of the first protrusion 111 and the through hole of the connecting seat 11 serve as the liquid inlet and liquid outlet of the additive flow channel 12 respectively; the first protrusion 111 extends downward beyond the bottom of the connecting seat 11.

[0068] The liquid inlet and liquid outlet of the additive flow channel 12 are circular and non-coaxially arranged. The liquid inlet of the additive flow channel 12 is coaxially arranged with the additive flow channel 12. The radial dimension of the liquid inlet of the additive flow channel 12 is larger than the radial dimension of the liquid outlet. The axis of the liquid inlet of the additive flow channel 12 is located above the axis of the liquid outlet, so that the liquid outlet of the additive is located below the liquid outlet, so that the detergent remaining below the additive flow channel 12 can be discharged by the lower-positioned liquid outlet.

[0069] Specifically, the inner circumferential wall of the additive channel 12 is provided with a plurality of buffer ribs 122, which are spaced apart and arranged in a circle along the circumference of the additive channel 12. The buffer ribs 122 are elongated and extend from the liquid inlet of the additive channel 12 to the connection with the connecting seat 11. All buffer ribs 122 extend to the same length, with some extending to the liquid outlet of the additive channel 12, and the remaining buffer ribs 122 being spaced apart from the liquid outlet of the additive channel 12. The provision of the buffer ribs 122 allows additives entering from the liquid inlet of the additive channel 12 to be gathered at the liquid outlet 121 of the additive channel, and reduces the speed at which the additive enters, preventing additives from splashing and leaving residue.

[0070] More specifically, the end surface of the free end of the first protrusion 111 is provided with an axially extending first plugging protrusion 111a and a first plugging groove 111b. The liquid inlet of the additive flow channel 12, the first plugging protrusion 111a and the first plugging groove 111b are coaxial and arranged from the inside to the outside.

[0071] A cylindrical guide member 4 is provided at the liquid inlet of the additive flow channel 12, and a guide flow channel 41 is formed inside the guide member 4 and is coaxial with the additive flow channel 12;

[0072] The guide flow channel 41 formed by the guide member 4 can guide the detergent into the additive flow channel 12, accelerate the additive to enter the switching chamber 23, and prevent the additive from splashing;

[0073] The delivery box 3 is provided with a flow channel communicating with the chamber in the liquid storage cavity, and the guide member 4 is inserted into the flow channel;

[0074] The end face of the guide member 4 is provided with an axially extending second plug-in protrusion 42 and a second plug-in groove 43. The liquid outlet of the guide channel 41, the second plug-in groove 43 and the second plug-in protrusion 42 are coaxial and arranged from the inside to the outside. The first plug-in protrusion 111a is inserted into the second plug-in groove 43, and the second plug-in protrusion 42 is inserted into the first plug-in groove 111b. The end face of the guide member 4 abuts against the buffer rib 122. Through the cooperation of the plug-in groove and the plug-in protrusion, the assembly strength and sealing strength between the guide member 4 and the adapter 1 are increased; the guide member 4 has a radial protrusion 44 radially extending from the liquid outlet of the guide channel 41, and the second plug-in protrusion 42 and the second plug-in groove 43 are arranged on the radial protrusion 44.

[0075] In the embodiment of the present invention, a second cylindrical protrusion 112 is coaxially provided on the outer periphery of the liquid outlet of the additive flow channel 12. Through holes are provided at both ends of the second protrusion 112, and an inserting cavity is formed inside the second protrusion 112.

[0076] A third cylindrical plug-in protrusion 21 coaxial with the liquid inlet of the liquid inlet channel 24 is provided on the outside of the switching valve 2 . The third plug-in protrusion 21 is inserted into the plug-in cavity, and a first sealing ring 5 is provided between the plug-in cavity.

[0077] In the embodiment of the present invention, by inserting the third plug-in protrusion 21 into the plug-in cavity, the assembly strength between the adapter 1 and the switching valve 2 can be increased, and by providing a first sealing ring 5 between the third plug-in protrusion 21 and the plug-in cavity, the sealing strength between the adapter 1 and the switching valve 2 can be increased;

[0078] The free end of the third plug-in protrusion 21 is an open end. The third plug-in protrusion 21 is inserted into the plug-in cavity and abuts against the connecting seat 11. The plug-in cavity abuts against the switching valve 2. The additive flow channel 12 is connected with the liquid inlet flow channel 24 through the inside of the third plug-in protrusion 21; the outer peripheral wall of the third plug-in protrusion 21 is stepped, having a first step, a second step and a connecting wall connecting the first step and the second step. The first sealing ring 5 is clamped between the inner peripheral wall of the plug-in cavity and the first step, and abuts against the connecting wall.

[0079] Furthermore, there are two first protrusions 111, and a cylindrical third protrusion 113 is provided directly above each first protrusion 111. The free end of the third protrusion 113 is a closed end, and a buffer cavity 1131 is formed inside the third protrusion 113. The connecting seat 11 is provided with a through hole communicating with the buffer cavity 1131. The water inlet of the flushing channel and the liquid inlet of the common flow channel 14 are respectively provided at the top of the outer periphery of the two third protrusions 113 and communicate with the corresponding buffer cavity 1131. The flushing water in the flushing channel enters the liquid inlet channel 24 through the buffer cavity 1131, and the liquid in the liquid outlet channel 25 enters the common flow channel 14 through the buffer cavity 1131.

[0080] Specifically, a cylindrical fourth protrusion 114 is provided at the top of the outer periphery of each third protrusion 113. The fourth protrusion 114 extends upward to exceed the top of the connecting seat 11. Through holes are respectively provided at the top and bottom of the fourth protrusion 114. The through holes of the two fourth protrusions 114 and the interior of the fourth protrusion 114 form a flushing channel or a common channel 14. The two through holes of the fourth protrusion 114 serve as the water inlet and outlet of the flushing channel or the liquid inlet and outlet of the common channel 14.

[0081] Furthermore, a fourth cylindrical plug-in protrusion 22 coaxial with the liquid outlet of the liquid outlet channel 25 is provided on the outside of the switching valve 2 . The fourth plug-in protrusion 22 is inserted into the buffer cavity 1131 , and a second sealing ring 6 is provided between the fourth plug-in protrusion 22 and the buffer cavity 1131 .

[0082] The fourth plug-in protrusion 22 is plugged into the buffer cavity 1131, and the end surface of the buffer cavity 1131 abuts against the switching valve 2, which can increase the assembly strength between the switching valve 2 and the adapter 1. In addition, a second sealing ring 6 is provided between the fourth plug-in protrusion 22 and the buffer cavity 1131, which can increase the sealing strength between the switching valve 2 and the adapter 1.

[0083] The outer periphery of the fourth plug-in protrusion 22 is arranged on the protrusion part. On one side of the protrusion part, a second sealing ring 6 is provided between the fourth plug-in protrusion 22 and the buffer cavity 1131. On the other side of the protrusion part, another second sealing ring 6 is provided between the fourth plug-in protrusion 22 and the buffer cavity 1131.

[0084] The adapter 1 is provided with a plurality of fixing holes 15 , some of which are used to fix the adapter 1 to the delivery box 3 , and some of which are used to fix the adapter 1 to the switching valve 2 .

[0085] Furthermore, the guide member 4 is a bellows, and the outside of the delivery box 3 is provided with a cylindrical positioning protrusion 311 that is connected to the box body 31 of the delivery box 3, and the end face of the free end of the positioning protrusion 311 is provided with a positioning groove 312 coaxial with the guide channel 41. The guide channel 41 is inserted into the positioning protrusion 311 through the positioning groove 312, and the end of the guide member 4 is embedded in the positioning groove 312 and clamped between the bottom of the positioning groove 312 and the bottom of the first plug-in groove 111b and the first plug-in protrusion 111a. The above arrangement increases the assembly strength between the guide member 4, the delivery box 3 and the adapter 1.

[0086] Furthermore, a plurality of depressions 1141 coaxial with the liquid outlet channel 25 are provided on the top of the fourth protrusion 114, and the box cover 32 of the delivery box 3 protrudes downward to form a cylindrical fifth protrusion 321 connected to the box cover 32. The flow channel formed by the fourth protrusion 114 is inserted into the fifth protrusion 321 and abuts against the inner wall of the fifth protrusion 321. By providing the depressions 1141 on the fourth protrusion 114, the sealing between the outer periphery of the fourth protrusion 114 and the inner periphery of the fifth protrusion 321 can be increased.

[0087] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above-mentioned embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above-mentioned embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A switching valve assembly, comprising a switching valve, characterized in that: The switching valve includes a switching chamber, several liquid inlet channels, and liquid outlet channels. The switching chamber has several liquid inlets connected to the liquid inlet channels in a one-to-one correspondence and several liquid outlets connected to the liquid outlet channels. A switching component is provided in the switching chamber for controlling any liquid inlet and any liquid outlet to be opened at the same time.

2. The switching valve assembly according to claim 1, characterized in that The switching cavity is cylindrical, and several liquid inlets and several liquid outlets are arranged on the end face of the switching cavity and distributed along the circumference of the switching cavity. Several liquid outlets are concentrated to form a liquid outlet area, and the liquid outlet flow channel covers the liquid outlet area. Several liquid inlets are arranged outside the liquid outlet area.

3. The switching valve assembly according to claim 2, characterized in that: The switching cavity is cylindrical, with several liquid inlets and several liquid outlets evenly distributed. The number of liquid inlets is equal to the number of liquid outlets. Each liquid inlet corresponds to a liquid outlet, and the line connecting the liquid inlet and the corresponding liquid outlet passes through the center of the circle of the end face of the switching cavity.

4. The switching valve assembly according to claim 3, characterized in that: The switching assembly includes a main shaft, a moving plate, and a stationary plate disposed in the switching chamber. The main shaft includes a support plate and a transmission shaft disposed on the bottom surface of the support plate. The top surface of the support plate is provided with a liquid storage tank communicating with the switching chamber. The side and top surfaces of the liquid storage tank are open. The lower end of the transmission shaft is connected to the driving member through a transmission member. The moving plate is fixed on the top surface of the main shaft, and is provided with two lower switching ports that pass through the moving plate and are connected to the liquid storage tank; the static plate is arranged opposite to the moving plate, and smooth static sealing surfaces are provided on the opposite end surfaces of the moving plate and the static plate; the static plate is provided with a plurality of upper switching ports, and the plurality of upper switching ports are arranged corresponding to the plurality of liquid inlets and the plurality of liquid outlets.

5. The switching valve assembly according to any one of claims 1 to 4, characterized in that: It also includes an adapter, which includes a connecting seat, a common flow channel and several liquid flow channels corresponding one to one with the liquid inlet flow channel. The common flow channel is connected to the liquid outlet of the liquid outlet flow channel, and the liquid flow channel is connected to the liquid inlet of the corresponding liquid inlet flow channel.

6. The switching valve assembly according to claim 5, characterized in that: The plurality of liquid flow channels include a flushing flow channel and two additive flow channels, the additive flow channel extending horizontally through the connecting seat, the flushing flow channel and the common flow channel extending vertically above the additive flow channel, the water inlet of the flushing flow channel and the liquid outlet of the common flow channel suspended above the connecting seat, and the water outlet of the flushing flow channel and the liquid inlet of the common flow channel provided on the connecting seat; Preferably, a cylindrical first protrusion is formed on one side of the connecting seat, and through holes are respectively provided on the end surface of the free end of the first protrusion and the connecting seat. The through hole of the first protrusion, the through hole of the connecting seat and the inside of the first protrusion form an additive flow channel, and the through hole of the first protrusion and the through hole of the connecting seat serve as the liquid inlet and liquid outlet of the additive flow channel respectively.

7. The switching valve assembly according to claim 6, characterized in that: A plurality of buffer ribs are provided on the inner peripheral wall of the additive flow channel, and the plurality of buffer ribs are distributed at intervals along the circumference of the additive flow channel and arranged in a circle; The buffer ribs are long strips, extending from the liquid inlet of the additive flow channel to the connection with the connecting seat; the protruding lengths of all buffer ribs are equal, some buffer ribs protrude to the liquid outlet of the additive flow channel, and there is a distance between the remaining buffer ribs and the liquid outlet of the additive flow channel.

8. The switching valve assembly according to claim 6, characterized in that: The end surface of the free end of the first protrusion is provided with an axially extending first plugging protrusion and a first plugging groove. The additive flow channel inlet, the first plugging protrusion and the first plugging groove are coaxial and arranged from inside to outside.

9. The switching valve assembly according to claim 8, characterized in that: A cylindrical guide is provided at the liquid inlet of the additive flow channel, and a guide flow channel is formed inside the guide channel, which is in communication with the additive flow channel and coaxial with the additive flow channel; Preferably, an axially extending second plug-in protrusion and a second plug-in groove are provided on the end face of the guide member. The liquid outlet of the guide channel, the second plug-in groove and the second plug-in protrusion are coaxial and arranged from the inside to the outside. The first plug-in protrusion is inserted into the second plug-in groove, and the second plug-in protrusion is inserted into the first plug-in groove. The end face of the guide member abuts against the buffer rib.

10. The switching valve assembly according to any one of claims 1 to 9, characterized in that: A second cylindrical protrusion is coaxially provided on the outer periphery of the additive flow channel outlet, through holes are respectively provided at both ends of the second protrusion, and an inserting cavity is formed inside the second protrusion; A third cylindrical plug-in protrusion coaxial with the liquid inlet of the liquid inlet channel is provided on the outside of the switching valve. The third plug-in protrusion is inserted into the plug-in cavity, and a first sealing ring is provided between the third plug-in protrusion and the plug-in cavity.

11. The switching valve assembly according to any one of claims 1 to 10, characterized in that: There are two first protrusions, and a cylindrical third protrusion is provided directly above each first protrusion. The free end of the third protrusion is a closed end. A buffer cavity is formed inside the third protrusion. A through hole connected to the buffer cavity is provided on the connecting seat. The flushing channel water inlet and the common channel liquid inlet are respectively provided at the top of the outer periphery of the two third protrusions and are connected to the corresponding buffer cavity.

12. The switching valve assembly according to claim 11, characterized in that A cylindrical fourth protrusion is provided at the top of the outer periphery of each third protrusion. The fourth protrusion extends upward to exceed the top of the connecting seat. Through holes are respectively provided at the top and bottom of the fourth protrusion. The through holes of the two fourth protrusions and the interior of the fourth protrusion form a flushing flow channel or a common flow channel. The two through holes of the fourth protrusion serve as the water inlet and outlet of the flushing flow channel or the liquid inlet and outlet of the common flow channel. Preferably, a fourth cylindrical plug-in protrusion coaxial with the liquid outlet of the liquid outlet channel is provided on the outside of the switching valve, and the fourth plug-in protrusion is inserted into the buffer cavity, and a second sealing ring is provided between the buffer cavity.

13. A delivery device for washing equipment, comprising a delivery box, characterized in that: It also includes the switching valve assembly according to any one of claims 1 to 12, wherein the switching valve is provided on the delivery box via an adapter and is connected to the delivery box via various flow channels of the adapter.

14. The feeding device of the washing equipment according to claim 13, characterized in that: The guide member is a bellows. The outside of the delivery box is provided with a cylindrical positioning protrusion that is connected to the delivery box body. The end surface of the free end of the positioning protrusion is provided with a positioning groove coaxial with the guide flow channel. The guide flow channel passes through the positioning groove and is inserted into the positioning protrusion. The end of the guide member is embedded in the positioning groove and clamped between the bottom of the positioning groove, the bottom of the first plug-in groove, and the first plug-in protrusion. Preferably, the top of the fourth protrusion is provided with several depressions coaxial with the liquid outlet channel, the lid of the delivery box protrudes downward to form a fifth protrusion connected to the lid, and the channel formed by the fourth protrusion is inserted into the fifth protrusion and abuts against the inner wall of the fifth protrusion.

15. A washing device, characterized in that: The washing equipment is provided with a dispensing device for the washing equipment according to claim 13 or 14.

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