Detergent additive dispensing device

Abstract

A detergent additive dispensing device, comprising a water reservoir (1) and an upper cover (3) fastened to the top of the water reservoir. A water path (300) is integrated inside the upper cover (3); a water outlet (304) of the water path (300) is formed on the bottom wall of the upper cover (3), and the water outlet (304) is formed facing toward the interior of the water reservoir (1); and the upper cover (3) and / or the water reservoir (1) are / is provided with a splash-proof structure for preventing the splashing of a water inflow entering the water reservoir (1) from the water outlet (304) of the water path. By additionally arranging the splash-proof structure, a water inflow entering the water reservoir is effectively prevented from generating an excessive splash, thereby achieving the technical progress of preventing a water flow splashing in the water reservoir from flowing back into the water path and hindering water outflow of the water path; the splash-proof structure can also be used to avoid the occurrence of an excessive splashing phenomenon, thereby effectively preventing a detergent additive mixture liquid entering a water reservoir from splashing to the side wall of the water reservoir and generating residues of the liquid remaining on the side wall.

Description

A washing additive dispensing device Technical Field

[0001] The present invention belongs to the field of household washing appliances, and specifically relates to a washing machine detergent dispensing device; in particular, it relates to a washing machine detergent dispensing device capable of preventing water from splashing back into a water storage tank; and in particular, it also relates to a washing machine using the above detergent dispensing device. Background Art

[0002] With the continuous improvement of people's living standards, washing machines have become an essential household appliance. Prior art drum washing machines and fully automatic pulsator washing machines are typically equipped with a detergent additive dispensing device for dispensing detergent into the washing tub. Typically, the detergent additive is drawn from the dispensing mechanism through a water inlet and discharged directly into the water tank through a water outlet. Existing water channels are typically integrated into the upper cover of the dispensing device, with the water outlet provided on the upper cover flowing downward into the water tank. Water flowing downward into the water tank is subject to the effects of hydraulic pressure and gravity, resulting in a certain falling velocity. This water flowing into the water tank through the water channel can cause some splashing at the bottom wall of the water tank. Excessive splashing can cause splashing onto the inner sidewalls of the water tank, resulting in liquid buildup on the sidewalls, residual water, and contamination, such as water marks. Furthermore, excessive splashing within the water tank can cause the water to spill out of the water tank through the front opening and other locations. In addition, if too high a splashing water flow is generated at the water tank below the water outlet of the water channel, the splashing water may flow back into the water channel on the upper cover.

[0003] In view of this, the present invention is proposed.

[0004] 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 washing machine and a washing machine with a washing machine having the function of preventing the back splashing of the water flow in the water tank. The washing machine can effectively solve the problem that during the process of filling water into the water tank, the water flow entering the water tank from the upper cover splashes, affecting the water inlet and causing the water tank to overflow and leak.

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

[0007] A washing additive dispensing device comprises a water tank, an upper cover buckled on the top of the water tank, a water channel integrated inside the upper cover; a water outlet for the water channel is provided on the bottom wall of the upper cover, the water outlet is opened toward the water tank; and an anti-splash structure is provided on the upper cover and / or the water tank to prevent splashing of water flowing into the water tank from the water outlet.

[0008] Furthermore, the splash-proof structure includes a water receiving surface arranged at the bottom of the water tank, the water receiving surface is located below the water outlet of the water channel, and the water receiving surface is provided with splash-proof ribs extending vertically upward; preferably, the water receiving surface is an inclined surface inclined downward toward the center of the water tank.

[0009] Furthermore, the splash-proof rib is a columnar vertical rib extending vertically upward, and the cross section of the splash-proof rib is a square; the upper end surface of the splash-proof rib is an inclined surface parallel to the water receiving surface.

[0010] Furthermore, the upper surface of the water receiving surface is provided with a plurality of anti-splashing ribs arranged in multiple rows and columns; the waterproof ribs are arranged at the same height; the upper end surfaces of the waterproof ribs are in the same plane, and the above plane is arranged parallel to the water receiving surface; preferably, the arrangement lines of the same row of anti-splashing ribs intersect with the front and rear orientation lines of the water storage tank at a certain angle.

[0011] Furthermore, a strip baffle extending vertically upward is provided on the side of the water receiving surface facing the front opening of the water tank, and the strip baffle is higher than the top height of the anti-splash rib; preferably, the water receiving surface is arranged at a corner on the rear side of the water tank, and the strip baffle is arranged on the side of the water receiving surface facing the front opening of the water tank, and one side of the strip baffle is in contact with the corresponding side wall of the water tank, so that the water receiving surface only uses the side toward the middle of the water tank to supply water to the water tank.

[0012] Furthermore, a water receiving tray is snapped onto the water outlet of the water channel provided on the lower wall of the upper cover; the interior of the water receiving tray is hollow, and the water outlet of the water channel is connected to the hollow chamber inside the water receiving tray; the bottom surface of the water receiving tray is provided with a plurality of water outlet holes arranged at intervals and passing through the bottom surface of the water receiving tray.

[0013] Furthermore, the water receiving tray is cylindrical, and the water receiving tray and the water outlet are coaxially arranged. The upper end opening of the water receiving tray is sealed and fastened to the bottom wall of the upper cover outside the water outlet, connecting the water outlet with the hollow chamber inside the water receiving tray; the radial dimension of the water receiving tray is larger than the radial dimension of the water outlet; and all the water outlet holes opened on the bottom wall of the water receiving tray are located vertically above the water receiving surface.

[0014] Furthermore, the water outlet holes provided on the bottom surface of the water receiving tray are openings with vertically extending axes and vertically opened downward; at least a portion of each water outlet hole is located vertically above the anti-splash rib.

[0015] Furthermore, the water receiving surface is the upper surface of the bottom wall of the water storage tank, or the upper surface of an independent component fixedly installed on the inner wall of the water storage tank; the water receiving tray is integrated with the upper cover, or is an independent component fixedly connected to the bottom wall of the upper cover.

[0016] Furthermore, a vent hole connected to the outside world is provided on the water channel integrated in the upper cover, and the vent hole is provided near the water outlet; preferably, the vent hole is provided with a vent valve to prevent the liquid in the water channel from flowing out.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0018] 1. By adding a splash-proof structure, the water flow entering the water tank can be effectively prevented from splashing too much, thereby achieving a significant technical progress in preventing the splashing water in the water tank from flowing back into the water channel and obstructing the water outflow from the water channel; the splash-proof structure can also be used to block excessive splashing, effectively preventing the detergent additive mixture entering the water tank from splashing onto the side wall of the water tank and generating residual liquid.

[0019] 2. By installing anti-splash ribs on the bottom wall of the water tank below the water outlet of the upper cover, the anti-splash ribs are used to interfere with and divert the incoming water flow, so that the downward force of the water flow into the water tank is decomposed by the anti-splash ribs, effectively reducing the falling speed of the water flow into the water tank, thereby achieving the effect of preventing the incoming water flow in the water tank from splashing. At the same time, in the present invention, by setting the bottom wall of the water tank below the water outlet of the upper cover as an inclined surface sloping downward toward the center, the incoming water flow of the water tank can flow into the water tank along the inclined surface, effectively preventing the occurrence of water pooling below the water outlet and further avoiding the generation of splashing water flow in the water tank.

[0020] 3. By installing a water receiving tray at the water outlet of the water channel and using the hollow chamber on the water receiving tray to buffer the water flow of the water channel, the water flow rate can be effectively reduced; at the same time, by using multiple water outlet holes arranged on the water receiving tray to form a shower-like water flow, the water flow can be effectively diverted and the height of the splashing water flow in the water tank can be greatly reduced, thereby effectively preventing the splashing of the water flow in the water tank and causing water leakage in the delivery device.

[0021] The technical problem to be solved by the present invention is also to overcome the shortcomings of the existing technology and provide a water pressure relief device. By setting a valve core, a limiting rib, a spring and a limiting column, when the water pressure is too large, the water channel gives the valve core a downward force, and at the same time, the spring gives the valve core a tilting force under the action of the limiting rib, so that the valve core has a tendency to tilt relative to the vertical direction. The upper part of one side of the valve core is close to the inner wall of one side of the water inlet end, and the lower part of the opposite side is close to the inner wall of the other side of the water inlet end, which overcomes the problem of valve core shaking and generating abnormal noise due to unstable water pressure in the existing technology.

[0022] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0023] A waterway pressure relief device, comprising:

[0024] The valve body, the water inlet end is connected with the waterway;

[0025] The valve core is arranged in the valve body, adapted to the shape of the water inlet end of the valve body, and an elastic member is arranged between the valve body and the water outlet end of the valve body, and further includes:

[0026] The limiting rib is arranged on the end face of the valve core away from the water inlet end, and protrudes from the end face partially toward the water outlet end. The end of the elastic member abuts against the valve core, one side abuts against the end face of the valve core, and the other side abuts against the limiting rib.

[0027] Furthermore, a limiting column extending along the middle of the valve core toward the water outlet is provided at one end of the valve core away from the water inlet end, the limiting rib is provided on one side of the limiting column, and the elastic member is sleeved on the outer periphery of the limiting column.

[0028] Furthermore, the limiting rib extends from the peripheral wall of the limiting column in a direction away from the axis of the limiting column, and the axial length of the limiting rib gradually decreases in the direction away from the axis of the limiting column;

[0029] Preferably, the end surface of the limiting rib away from one end of the valve core is set as an arc-shaped surface with a high middle and low two sides.

[0030] Furthermore, the limiting ribs include:

[0031] The first limiting rib includes two parts extending from the peripheral wall of the limiting column in a direction away from each other and forming a first angle with the extending direction of the limiting rib;

[0032] The second limiting ribs extend from the ends of the first limiting ribs in a direction close to each other, and the ends are connected, forming a second angle with the extending direction of the limiting ribs;

[0033] Preferably, the first angle is greater than the second angle.

[0034] Furthermore, the diameter of the water outlet end of the valve body is greater than or equal to the diameter of the elastic member, and a limiting structure is provided inside the water outlet end to abut against the end of the elastic member.

[0035] Furthermore, the limiting structure includes:

[0036] The first limiting portion extends radially along the water outlet end, and both ends are connected to the inner wall of the water outlet end; the second limiting portion protrudes and extends from the middle of the first limiting portion toward the water inlet end; the end of the elastic member away from the valve core is sleeved on the outer periphery of the second limiting portion and abuts against the first limiting portion.

[0037] Furthermore, the first limiting portion includes a plurality of first limiting portions that are staggered with each other, and one end of each first limiting portion close to the valve core is coplanar.

[0038] Furthermore, the valve core includes a valve core body and a water flow portion provided on a side of the valve core body away from the water outlet end, the water flow portion including:

[0039] A center column is coaxially arranged with the valve core body;

[0040] The support ribs extend radially from the peripheral wall of the central column in a direction away from the axis of the central column, and abut against the inner wall of the water inlet end on the side away from the axis of the central column, and include at least three support ribs evenly arranged along the circumferential direction.

[0041] Furthermore, a groove is provided at one end of the water passing portion away from the water outlet end, and the inner diameter of the groove gradually decreases in a direction approaching the water outlet end.

[0042] The present invention also provides a washing machine equipped with the water channel pressure relief device.

[0043] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0044] The present invention provides a local limiting rib at the bottom of the valve core so that the bottom of the valve core has a certain height difference. When the spring abuts against the valve core, the compression amounts on both sides of the spring are inconsistent, and the valve core is subjected to an inclined force. When the water pressure is greater than the elastic force of the spring, the valve core moves downward. At the same time, the valve core has a tendency to tilt relative to the vertical direction during the movement, thereby avoiding the vibration and abnormal noise of the valve core when the water pressure is unstable.

[0045] At the same time, the present invention has a simple structure and significant effects, and is suitable for popularization and application.

[0046] 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

[0047] 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:

[0048] FIG1 is a perspective schematic diagram of a washing additive dispensing device according to an embodiment of the present invention;

[0049] FIG2 is a schematic top view of a water storage tank according to an embodiment of the present invention;

[0050] 3 is a schematic exploded view of a washing additive dosing device for a water storage tank with an anti-backsplash structure according to an embodiment of the present invention;

[0051] FIG4 is a schematic top view of the lower cover of the integrated waterway according to an embodiment of the present invention;

[0052] 5 is a schematic bottom view of the integrated waterway lower cover according to an embodiment of the present invention;

[0053] FIG6 is a schematic top view of the integrated waterway lower cover according to an embodiment of the present invention;

[0054] 7 is a schematic perspective view of a water receiving tray according to an embodiment of the present invention;

[0055] FIG8 is a schematic structural diagram of a water storage tank according to an embodiment of the present invention;

[0056] FIG9 is an enlarged structural diagram of point A in FIG8 according to an embodiment of the present invention;

[0057] 10 is a schematic top view of the structure of the washing additive delivery device according to an embodiment of the present invention;

[0058] FIG11 is a schematic diagram of the BB cross-sectional structure of FIG10 according to an embodiment of the present invention;

[0059] FIG12 is an overall structural diagram of the pressure relief valve of the present invention;

[0060] FIG13 is a front view of the overall structure of the valve core of the present invention;

[0061] FIG14 is a diagram showing the overall structure of the valve core of the present invention from a reverse perspective;

[0062] FIG15 is a diagram showing the overall structure of the plug in the present invention;

[0063] FIG16 is a bottom view of the plug of the present invention.

[0064] Description of the main components in the figure: 1. Water tank; 101. Water tank outlet; 102. Water tank inlet; 103. Water tank diversion channel; 104. Water outlet diversion channel; 2. Distributor box; 201. Liquid storage chamber; 2011. Liquid storage tank; 3. Upper cover; 300. Integrated waterway; 301. Integrated waterway upper cover; 302. Integrated waterway lower cover; 303. Water inlet; 304. Water outlet; 305. Ventilation hole; 5. Water receiving surface; 6. Strip baffle; 7. Splashproof rib; 8, water receiving tray; 801, water outlet; 01, valve body; 11, water inlet; 12, water outlet; 121, first limiting part; 122, second limiting part; 02, valve core; 21, limiting column; 22, limiting rib; 221, first limiting rib; 222, second limiting rib; 23, water passing part; 231, center column; 232, supporting rib; 234, guide groove; 235, groove; 03, spring; 4, plug; 41, connecting part; 411, connecting hole.

[0065] 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

[0066] 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.

[0067] 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.

[0068] 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.

[0069] As shown in Figures 1 to 11, an embodiment of the present invention introduces a washing additive dispensing device for a washing machine, which includes a water storage tank 1 for supplying water to the washing tub of the washing machine. The water storage tank 1 is a hollow cavity with an opening at the front end and an open top surface. A dispenser box 2 that can be pulled out and pushed in is installed inside the cavity; the dispenser box 2 is provided with a liquid storage chamber 201 for holding washing additives such as detergent and softener; the liquid storage chamber 201 can be composed of an independent chamber and detachably installed on the dispenser box 2, or it can be a liquid storage tank 2011 integrated on the dispenser box 2 for holding washing additives; a water tank outlet 101 is provided at the front end of the bottom of the water storage tank 1, so that the washing additive mixture and the inlet water flow can flow out of the water storage tank 1 through the water tank outlet 101 and enter the washing tub of the washing machine. A slide rail between the dispenser box 2 and the water tank 1 facilitates smooth extraction and inward movement of the dispenser box 2. The top opening of the water tank 1 is snapped onto an upper cover 3, which snaps and seals the upper opening of the water tank, thereby shielding the interior of the water tank 1. Furthermore, a waterway 300 is integrated within the upper cover 3. The waterway 300 is used to introduce incoming water into the dispenser box 2, draw out detergent additives injected into the chamber provided in the dispenser box 2, introduce the inlet water flow of the washing machine, and draw out the inlet water and / or detergent additive mixture into the washing machine drum. Of course, the waterway 300 can also introduce water into the water tank 1, thereby allowing the inlet water flow of the washing machine and / or the detergent additive mixture to flow into the water tank 1, and then into the washing machine drum via the water tank 1.

[0070] In an embodiment of the present invention, the water tank 1 is also connected to an automatic dispensing device for extracting the washing additive in the dispenser box 1 into the water tank 1; a water tank inlet 102 is provided on the right side of the water tank 1, and the water tank inlet 102 intakes water into the water tank 1 and mixes with the washing additive discharged from the integrated water outlet 304 to form a washing additive mixture. A water tank diversion groove 103 and a water outlet diversion groove 104 are provided at the bottom of the water tank 1, and the washing additive mixture in the water tank 1 is guided through the water tank diversion groove 103 and the water outlet diversion groove 104 to flow out from the water tank outlet 101 provided at the front end of the bottom of the water tank 1 and enter the washing tub of the washing machine.

[0071] In an embodiment of the present invention, the washing additive dispensing device is further provided with an automatic dispensing unit for automatically extracting and dispensing the washing additive into the water channel; the automatic dispensing unit can be any existing structure; in an embodiment of the present invention, the automatic dispensing unit can be configured as follows, but the protection scope of the present invention is not limited to the following configuration: the automatic dispensing unit includes a pump, and the dispenser box 2 is connected to the integrated water channel 300 via the pump, so that the washing additive contained in the dispenser box 2 can be automatically pumped into the integrated water channel 300 and discharged into the water storage tank 1 through the integrated water channel outlet 304.

[0072] As shown in Figures 1 to 5, in an embodiment of the present invention, the upper cover 3 includes an integrated water channel lower cover 302 and an integrated water channel upper cover 301 that are interlocked. The connecting surfaces of the integrated water channel lower cover 302 and the integrated water channel upper cover 301 are provided with grooves that are recessed toward each other. The integrated water channel lower cover 302 and the integrated water channel upper cover 301 are sealed to each other from top to bottom, so that the above-mentioned grooves directly form a water channel 300 integrated inside the upper cover 3.

[0073] The integrated water channel lower cover 302 is provided with an integrated water channel outlet 304 for the washing additive mixture and / or the incoming water flow in the integrated water channel 300 to flow into the water storage tank 1. An air vent 305 is provided on the left side of the integrated water channel outlet 304 to ensure that after the water inlet is stopped, air is exchanged into the water channel 300 through the air vent 305, so that the residual liquid in the water channel 300 can be completely discharged to the water storage tank 1 below under the action of atmospheric pressure, thereby achieving the effect of emptying the residual water in the water channel.

[0074] When the washing machine is working, in order to ensure that the water in the water channel 300 is drained after the water supply is stopped, an air vent 305 is added in the water channel 300. Because some water will flow out of the air vent 305 during the water supply process, in order to ensure that the water flow rate out of the air vent 305 is within a certain range, the air vent 305 is opened upward from the water channel 300 and has a diameter of less than 2 mm to prevent the liquid in the water channel 300 from flowing out from the air vent 305; preferably, in order to further prevent the liquid in the water channel 300 from overflowing from the air vent 305, a breather valve can be installed at the breather hole 305, so that under the action of the breather valve, gas can flow through the air vent 305 and the liquid in the water channel 300 cannot flow out.

[0075] In the embodiment of the present invention, a water tank outlet 101 is provided at the front end of the bottom of the water tank 1, and a water outlet water inlet groove 104 is provided around the water tank outlet 101, which is gradually inclined upward along the periphery of the water tank outlet 101 toward the direction away from the water tank outlet 101. The right side of the water outlet water inlet groove 104 is connected to the water tank water inlet groove 103 provided at the upper end of the bottom of the water tank 1, so that the washing additive mixture in the water tank 1 can be thoroughly discharged into the washing machine through the water tank water inlet groove 103 and the water outlet water inlet groove 104.

[0076] As shown in Figures 1 to 5, an embodiment of the present invention introduces a washing additive dispensing device, comprising a water tank 1, an upper cover 3 that is fastened to the top of the water tank, a water channel 300 integrated inside the upper cover 3; a water channel outlet 304 that opens into the water tank 1 on the bottom wall of the upper cover 3; and an anti-splash structure that prevents the incoming water flow from the water channel outlet 304 from splashing. By adding the anti-splash structure, the incoming water flow entering the water tank can be effectively prevented from splashing too much, thereby achieving a significant technical advancement in preventing the splashing water flow in the water tank from flowing back into the water channel and obstructing the water outlet. The anti-splash structure can also be used to prevent excessive splashing, effectively preventing the washing additive mixture entering the water tank from splashing onto the side wall of the water tank and generating residual liquid.

[0077] In an embodiment of the present invention, the splash-proof structure includes a water receiving surface 5 disposed at the bottom of the water tank 1 below the water outlet 304, which is inclined downward toward the center of the water tank 1. The water receiving surface 5 is provided with a vertically upwardly extending splash-proof rib 7. By installing the splash-proof rib 7 on the bottom wall of the water tank below the upper water outlet, the splash-proof rib 7 is utilized to interfere with and divert the incoming water flow. This deflects the downward force of the incoming water flow into the water tank 1, effectively reducing the falling velocity of the incoming water flow, thereby achieving the effect of splash-proofing the incoming water flow into the water tank 1. Furthermore, in the present invention, by configuring the bottom wall of the water tank below the upper water outlet as a sloped surface inclined downward toward the center, the incoming water flow into the water tank 1 can flow along the sloped surface, effectively preventing water from pooling below the water outlet and further preventing the generation of splashing water within the water tank 1.

[0078] In the embodiment of the present invention, the splash-proof rib 7 is a columnar rib extending vertically upward; the cross-section of the splash-proof rib 7 is square; and the upper end surface of the splash-proof rib 7 is an inclined surface parallel to the water receiving surface 5. By configuring the upper end surface of the splash-proof rib 7 as an inclined surface, water falling onto the splash-proof rib 7 can flow along the upper inclined surface, further enhancing the splash-proof rib's diversion and buffering effect on the falling inlet water flow, effectively reducing splashing water within the water storage tank 1.

[0079] In this embodiment of the present invention, the upper surface of the water receiving surface 5 is provided with a plurality of anti-splash ribs 7 arranged in multiple rows and columns. Each anti-splash rib 7 is arranged at the same height, and the upper end surfaces of each anti-splash rib 7 lie in the same plane, which is parallel to the water receiving surface 5. By arranging multiple rows and columns of anti-splash ribs below the water outlet, the sidewalls of the anti-splash ribs can be used to disrupt and divert the splashing water flow, thereby reducing the height of the splashing water flow and effectively preventing excessive splashing water flow within the water storage tank. This represents a significant technological advancement.

[0080] Preferably, in the above-mentioned multi-row and multi-column arrangement of the anti-splash ribs 7, the arrangement lines of the same row of anti-splash ribs 7 are staggered at a certain angle with the front and rear directions of the water storage tank 1, so that the staggered arrangement of the anti-splash ribs 7 further enhances the effect of buffering and splash-proofing the incoming water flow in various areas below the water outlet.

[0081] In this embodiment of the present invention, a strip baffle 6 extending vertically upward is provided on the side of the water receiving surface 5 facing the front opening of the water tank 1. The strip baffle 6 is higher than the top of the splash-proof rib 7. By providing the baffle on one side of the water receiving surface, the incoming water from the waterway outlet into the water tank 1 is blocked by the strip baffle 6 and prevented from splashing toward the water tank outlet 101. This effectively prevents splashing water from being caught on the side wall of the water tank due to the incoming water and effectively prevents the formation of residual water in the water tank.

[0082] Preferably, the water receiving surface 5 is located at a corner on the rear side of the water tank 1, and a strip baffle 6 is provided on the side of the water receiving surface 5 that faces the front opening of the water tank 1. One sidewall of the strip baffle 6 abuts against the corresponding sidewall of the water tank 1, so that the water receiving surface 5 only uses the side toward the middle of the water tank 1 to supply water. This arrangement allows the water inlet area of ​​the waterway to be surrounded on three sides by the strip baffle 6 and the sidewalls of the water tank, so that water flowing into the water tank 1 can only flow toward the middle of the water tank and along the bottom wall of the water tank to the water tank outlet.

[0083] In an embodiment of the present invention, the splash-proof structure also includes a water receiving tray 8 that is snap-fitted and installed at the water outlet 304 provided on the lower wall of the upper cover 3; the interior of the water receiving tray 8 is hollow to form a water passage chamber, the upper opening of the water receiving tray 8 is open and correspondingly snap-fitted to the outer periphery of the water outlet 304 of the upper cover 3, the upper opening of the water receiving tray 8 is in contact with the bottom wall of the upper cover 3 and is provided with at least one circle of sealing ring, so that all the liquid flowing out of the water outlet 304 enters the hollow chamber of the water receiving tray 8; the bottom surface of the water receiving tray 8 is provided with a plurality of water receiving tray water outlet holes 801 arranged at intervals and passing through the bottom surface of the water receiving tray 8, so that the water flowing out of the water outlet flows through the water receiving tray water outlet holes 801 and enters the water storage tank 1. By adding a water receiving tray 8 at the water outlet of the water channel and utilizing the hollow chamber provided on the water receiving tray 8 to buffer the water flow of the water channel, the water flow rate can be effectively reduced; at the same time, utilizing the multiple water outlet holes arranged on the water receiving tray 8 to form a shower-like water flow, the water flow can be effectively diverted, and the height of the splashing water flow formed in the water storage tank 1 can be greatly reduced, thereby effectively preventing the splashing of the water flow in the water storage tank 1 and causing water leakage in the dispensing device.

[0084] In the embodiment of the present invention, the water receiving tray 8 is cylindrical, and the water receiving tray 8 is coaxially arranged with the water outlet 304, and the radial dimension of the water receiving tray 8 is larger than the radial dimension of the water outlet 304; the water receiving tray outlet holes 801 opened on the bottom wall of the water receiving tray 8 are all located vertically above the water receiving surface 5, so that the incoming water flow from the water receiving tray 8 into the water storage tank 1 can fall freely to the water receiving surface 5, and then be guided by the water receiving surface 5 to flow into the water storage tank 1, thereby realizing the dual splash-proof effect of the water receiving tray 8 and the splash-proof rib 7 on the water inlet flow of the water storage tank, further avoiding the generation of splashing water flow in the water storage tank 1.

[0085] In the embodiment of the present invention, the water outlet holes 801 provided on the bottom surface of the water receiving tray 8 are openings with an axis extending vertically and opening vertically downward; at least a portion of the water outlet holes 801 of each water receiving tray is located vertically above the anti-splash rib 7, so that the water flow after being diverted from the water receiving tray 8 can still be splashed by the anti-splash rib 7 after falling, thereby greatly reducing the generation of splashing water flow in the water storage tank 1.

[0086] In this embodiment of the present invention, the water receiving surface 5 is the upper surface of the bottom wall of the water storage tank 1, or the upper surface of a separate component fixedly mounted on the inner wall of the water storage tank 1. Preferably, the water receiving surface 5 is formed by the bottom wall of the water storage tank 1 and is a portion of the upper surface of the bottom wall of the water storage tank 1. The water receiving tray 8 is integrally provided with the upper cover 3, or is a separate component fixedly connected to the bottom wall of the upper cover 3. Preferably, the water receiving tray 8 is a separate component fixedly mounted on the upper cover 3.

[0087] In the embodiment of the present invention, a water tank inlet 102 is provided on the far right side of the water tank 1 for injecting water into the water tank 1. Located on the upper side of the front end of the water tank inlet 102, directly below the integrated water outlet 304 is a plurality of splash-proof ribs 7 that are arranged vertically and upward and are connected to the water receiving surface 5 at the bottom of the water tank 1.

[0088] As shown in Figures 1 to 5, in the embodiment of the present invention, the water receiving surface 5 at the bottom of the water tank 1 is set as an inclined surface slanting upward from the middle of the bottom of the water tank 1 to the inner wall of the water tank 1, so that the mixed liquid discharged from the integrated water outlet 304 is decelerated by the anti-splash rib and discharged to the middle of the water tank 1, and then discharged into the interior of the washing machine through the water tank water diversion groove 103 and the water outlet water diversion groove 104. The right side of the water receiving surface 5 is connected to the inner wall of the water tank 1, and the left side is provided with a strip baffle 6 extending vertically upward along the bottom of the water tank 1. One side of the strip baffle 6 is connected to the inner wall of the water tank 1, and the other end is freely extended.

[0089] As shown in Figures 1 to 5, in an embodiment of the present invention, the top of the water tank 1 is connected to the bottom surface of the integrated water channel lower cover 302, which can be a detachable connection or a sealed connection. The top surface of the integrated water channel lower cover 302 is provided with an integrated water channel 300, and the integrated water channel lower cover 302 and the integrated water channel upper cover 301 are sealed with each other to form the integrated water channel 300. An integrated water channel inlet 303 is provided in the integrated water channel 300, for the washing additive mixture in the dispenser box 2 to be drawn by the dispenser box 2 and flow into the integrated water channel 300, and then discharged into the water tank 1 through the integrated water channel outlet 304, and then discharged into the washing machine from the water tank 1, thereby completing the addition of washing additives; on the left side of the integrated water channel outlet 304, a circular air vent 305 with a diameter of no more than 2 mm is provided to achieve the purpose of completely draining the mixed liquid in the integrated water channel 300.

[0090] In the embodiment of the present invention, the user pulls out the dispenser box 2, adds an appropriate amount of detergent additives into the dispenser box 2, pushes the detergent box 2 into the water storage tank 1, and then starts the washing program. The detergent additives in the dispenser box 2 are drawn into the integrated waterway 300 composed of the upper cover 301 and the lower cover 302 of the integrated waterway, enter through the integrated waterway inlet 303, pass through the integrated waterway 300, and are injected into the water storage tank 1 through the integrated waterway outlet 304. The detergent additives are mixed with the detergent. After the mixed liquid is discharged from the integrated water channel outlet 304, it is decelerated and buffered by a plurality of spaced-apart splash-proof ribs 7 arranged directly below the integrated water channel outlet 304. The discharged mixed liquid is then directed to the middle of the water storage tank 1 by the downwardly inclined water receiving surface 5 downstream. The mixed liquid is then delivered to the interior of the washing machine by the water storage tank diversion groove 103 and the water outlet diversion groove 104 of the water storage tank 1, thereby completing the delivery of the detergent additives.

[0091] As shown in Figures 1 to 8, an embodiment of the present invention introduces a washing additive dispensing device with a water tank with an anti-splashback structure, including a dustpan-shaped water tank 1 surrounded by three side surfaces and a bottom surface, with the left side and the top surface open. A water tank water inlet 102 is provided on the right side of the water tank 1, which is connected to the water inlet valve 402 through a water pipe 403. The water inlet valve 402 is connected to the water source of the washing machine. The water source of the washing machine is generally the tap of the user's home; the water inlet valve 402 can control the on-off of the water pipe to control the on-off supply of tap water to the water tank 1.

[0092] As shown in Figures 1 to 8, in the embodiment of the present invention, a water tank outlet 101 is provided at the front end of the bottom of the water tank 1. The water tank outlet 101 is connected to the inner drum of the washing machine. A water outlet diversion groove 104 is provided around the top of the water tank outlet 101, which is inclined upward along the four sides of the water tank outlet 101 away from the water tank outlet 101. The highest point of the water outlet diversion groove 104 is flush with the inner wall of the bottom of the water tank 1. One side of the water outlet diversion groove 104 is connected to a water tank diversion groove 103. The water tank diversion groove 103 crosses the entire bottom of the water tank and is connected to the water outlet diversion groove on one side. The other end extends freely in the front-to-back direction to cover the bottom of the water tank 1, so that the liquid at the bottom of the water tank 1 converges into the water tank diversion groove 103, and is discharged into the washing tub of the washing machine through the outlet diversion groove 104 and the water tank outlet 103.

[0093] As shown in Figures 1 to 8, in the embodiment of the present invention, a water receiving surface 5 is provided on the right side of the water tank water inlet 103 at the bottom of the water tank 1, and is connected to the bottom of the water tank 1 on one side and to the side wall of the water tank 1 on the other side. The water receiving surface 5 is inclined downward from the wall of the water tank 1, and is provided with a splash-proof rib 7 extending vertically upward from the water receiving surface 5 and arranged parallel to the wall of the water tank 1. A plurality of splash-proof ribs 7 are arranged at intervals on the water receiving surface 5. The other two sides are connected to the inner wall of the water tank 1 on one side, and connected to the strip baffle 6 on the other side. The strip baffle 6 is set to be connected to the bottom of the water tank 1 at the bottom, and the top extends vertically upward freely. One side of the strip baffle 6 is connected to the inner wall of the water tank 1, and the other side extends toward the inside of the water tank 1, forming a vertically upward strip baffle 6, which is used to block the washing additive mixture discharged from the integrated water outlet 304, so that it can flow into the inside of the water tank 1 through the water receiving surface 5.

[0094] As shown in Figures 1 to 8, in an embodiment of the present invention, the top of the water storage tank 1 is connected to the bottom of the integrated water channel lower cover 302 on all sides, and the connection method can be a snap-on connection or other connection methods; the integrated water channel lower cover 302 and the integrated water channel upper cover 301 are snap-fitted and sealed to each other to form an integrated water channel 300, and an integrated water channel inlet 303 is provided at the starting end of the water channel of the integrated water channel 300 for the inflow of washing additives, and an integrated water channel outlet 304 is provided at the end of the integrated water channel 300 for discharging the washing additives in the integrated water channel 300, and an air vent 305 with a diameter of not more than 2 mm is provided on the left side of the integrated water channel outlet 304.

[0095] As shown in Figures 1 to 8, in an embodiment of the present invention, a hollow cylindrical water receiving tray 8 with an open top is provided at the bottom of the integrated water channel lower cover 302 and below the integrated water channel water outlet 304. A plurality of water receiving tray water outlet holes 801 are provided at the bottom of the water receiving tray 8 to reduce the water outlet speed of the integrated water channel water outlet 304 and prevent the water outlet 304 from hitting the water receiving surface 5 too quickly to cause splashing back.

[0096] In an embodiment of the present invention, the water receiving tray 8 can be integrally provided with the integrated water channel lower cover 302 or can be separately provided and installed at the bottom of the integrated water channel lower cover 302. The open opening at the top of the water receiving tray 8 covers the integrated water channel outlet 304, so that the mixed liquid discharged from the integrated water channel outlet 304 must pass through the water receiving tray 8 before it can be discharged into the water storage tank 1.

[0097] In an embodiment of the present invention, after the washing additive enters the integrated water channel 300 through the integrated water channel water inlet 303, it is discharged into the internal cavity of the water receiving tray 8 through the integrated water channel water outlet 304, and then decelerated and diverted by the water receiving tray outlet hole 801 at the bottom of the water receiving tray 8. After reducing the flow rate, it is further decelerated and diverted after passing through the splash-proof rib 7 to flow to the water receiving surface 5. It is blocked by the strip baffle 6 and flows to the inside of the water tank 1 through the inclined water receiving surface 5. Inside the water tank 1, it is mixed with the water flowing into the water tank water inlet 102 to form a washing additive mixture, and at the same time, it flows through the water tank water inlet 103 and the water outlet water inlet 104 to the washing tub of the washing machine.

[0098] As shown in Figures 12 to 16, the present invention provides a pressure relief device for automatically discharging water into a washing machine, including a valve core 02. The valve core 02 is arranged at one end of the pressure relief device close to the water channel and is adapted to the water inlet end 11. An elastic member is arranged between the valve core 02 and the water outlet end 12.

[0099] Specifically, the pressure relief device is configured as a one-way valve, and a gasket is provided on the valve core 02. On the one hand, the valve core 02 can be clamped on the valve body 01, and on the other hand, its airtightness can be increased to prevent liquid from overflowing under normal conditions.

[0100] Specifically, the inner wall of the valve body 01 extends from the water inlet end 11 to the water outlet end 12, extends a short distance outward after extending for a certain distance, and then continues to extend toward the water outlet end 12 to the outside of the delivery device. The gasket is stuck in the outwardly extending part to prevent the valve core 02 from being pushed out of the valve body 01 under the elastic force of the elastic member.

[0101] Specifically, a limiting column 21 is provided on the end face of the valve core 02 away from the water inlet end 11, and the limiting column 21 extends from the middle of the end face of the valve core 02 away from the water inlet end 11 in a direction perpendicular to the above end face.

[0102] Specifically, a limiting rib 22 is provided on one side of the limiting column 21, and the limiting rib 22 includes: a first limiting rib 221, comprising two parts extending from the peripheral wall of the limiting column 21 in a direction away from each other, forming a first angle with the extension direction of the limiting rib 22; a second limiting rib 222, extending from the end of the first limiting rib 221 in a direction approaching each other, and the ends are connected, forming a second angle with the extension direction of the limiting rib 22.

[0103] Preferably, the first angle is greater than the second angle.

[0104] Specifically, a spring 03 can be selected as an elastic member, and one end of the spring 03 abuts against the side of the valve core 02 away from the water inlet. One side of the spring 03 abutting one end abuts against the end face of the valve core 02 away from the water inlet end 11, and the other side abuts against the side of the limiting rib 22 away from the water inlet end 11. Since the end face of the valve core 02 and the side of the limiting rib 22 away from the water inlet end 11 are on the same horizontal line and have different heights, the compression amount of the spring 03 is different when the two abut, and the elastic force on both sides of the spring 03 is also different.

[0105] Specifically, one end of the above-mentioned spring 03 is sleeved on the limit column 21, which plays a limiting role for the spring 03. Since the elastic forces on both sides of one end of the above-mentioned spring 03 are different, the spring 03 is subjected to unbalanced forces, so when the valve core 02 moves downward, it will tilt and deviate. The end of the spring 03 that abuts the valve core 02 is subjected to an oblique upward force and moves obliquely upward. If the limit column 21 is not added, the spring 03 will be separated from the valve core 02. After the valve core 02 is lowered, the upward elastic force applied by the spring 03 is lost, resulting in the water inlet not being sealed in time, and the liquid in the waterway will continue to overflow through the pressure relief valve, causing great waste.

[0106] Specifically, one end of the spring 03 is sleeved on the limit column 21. When the valve core 02 moves downward, the spring 03 exerts an inclined force on the valve core 02, causing the spring 03 to deviate relative to the valve core 02. When one side of the spring 03 deviates to abut against the limit column 21, the spring 03 stops deviating, thereby avoiding the problem of the spring 03 being detached from the valve core 02.

[0107] Preferably, the distance between the end of the limiting rib away from the limiting column and the side of the limiting column abutting the spring is greater than or equal to the diameter of the spring coil. At this time, when the valve core 02 moves downward and one side deviates to abut against the limiting column 21, the other side of the spring 03 can still abut against the limiting rib 22 extending from the valve core 02. On the one hand, it prevents the side of the spring 03 away from the limiting column 21 from suddenly detaching from the limiting rib 22 when deviating, thereby increasing its stability; on the other hand, it also prevents the spring 03 from generating abnormal noise when the side of the spring 03 away from the limiting column 21 suddenly detaches from the limiting rib 22 when deviating, thereby further reducing the noise level.

[0108] Specifically, the water outlet end 12 is hollow inside, and the side away from the water inlet end 11 is communicated with the outside. A first limiting portion 121 and a second limiting portion 122 are provided inside the water outlet end 12 .

[0109] Specifically, the first limiting portion 121 extends radially along the water outlet end 12, and both ends are fixed to the inner wall of the water outlet end 12; preferably, the first limiting portion 121 includes a plurality of first limiting portions 121 arranged alternately with each other, and each first limiting portion 121 is coplanar with one end close to the valve core 02; the second limiting portion 122 is arranged at the axis of the water outlet end 12, and is a cylinder protruding and extending from the first limiting portion 121 toward the water inlet end 11; the other end of the elastic member abuts against the first limiting portion 121 of the water outlet end 12, and is sleeved on the outer periphery of the second limiting portion 122.

[0110] Specifically, since the water pressure in the pipeline is unstable, the pressure of the water channel on the valve core 02 is also unstable. If the spring 03 directly abuts against the end face of the valve core 02 away from the water inlet end 11, radial shaking noise will be generated when the valve core 02 moves back and forth. If the end of the spring 03 abutting against the valve core 02 is set to be inclined, this part of the noise can be reduced.

[0111] Specifically, the distance from the side where the spring 03 abuts the limiting rib 22 to the first limiting portion 121 is smaller than the distance from the side where the spring 03 abuts the end face of the valve core 02 away from the water inlet end 11 to the first limiting portion 121, thereby making the compression amount of the side where the spring 03 abuts the limiting rib 22 greater than the compression amount of the side where the spring 03 abuts the end face of the valve core 02 away from the water inlet end 11, and the elastic force of the side where the spring 03 abuts the limiting rib 22 is greater than the elastic force of the side where the spring 03 abuts the end face of the valve core 02. When the water flow rate increases and the internal pressure increases, the downward force on the valve core 02 is greater than the force of the spring 03, and the valve core 02 moves toward the water outlet end 12. Due to the inconsistent compression amounts on both sides of the spring 03, the force on the valve core 02 is unbalanced. At this time, the valve core 02 is subjected to a tilting force, and the movement of the valve core 02 also needs to overcome the tilting force of the spring 03, thereby avoiding the shaking and abnormal noise of the valve core 02.

[0112] Specifically, the extension direction of the first limiting portion 121 should be set to be the same as the extension direction of the limiting rib 22, and the compression amounts on both sides of the spring 03 are different. When the valve core 02 moves downward, the end of the spring 03 close to the water inlet end 11 tilts in the direction away from the limiting rib 22, and at the same time, the spring 03 away from the water inlet end 11 also tilts. If the extension direction of the first limiting portion 121 is perpendicular to the extension direction of the limiting rib 22 at this time, the spring 03 will rotate and tilt with the first limiting portion 121 as the axis, and the inner part of the spring coil of the spring 03 is stuck on the second limiting portion 122. In a short period of time, the second limiting portion 122 can prevent the spring 03 from sliding off the water outlet end 12 due to rotation and tilting. During use, the second limiting portion 122 continuously applies force to the spring coil of the spring 03. Over time, it will cause the spring coil of the spring 03 to be stretched and enlarged, and then the second limiting portion 122 can no longer play a good limiting role, and eventually cause the spring 03 to slide off the water outlet end 12.

[0113] Specifically, if the extension direction of the first limiting portion 121 is set to be the same as the extension direction of the limiting rib 22, when the valve core 02 moves downward, the end of the spring 03 close to the water inlet end 11 tilts in the direction away from the limiting rib 22, and also causes the spring 03 away from the water inlet end 11 to tilt. At this time, the tilting direction of the spring 03 is limited by the first limiting portion 121, preventing the spring 03 from continuing to tilt, thereby causing the spring 03 to slip. However, during the operation of the device, the spring 03 often tilts and deviates, causing the valve core 02 to tilt in the spring 03. Under the action of , an axial rotational deviation will occur in its vertical direction, thereby changing the angle between the extension direction of the limiting rib 22 and the extension direction of the first limiting portion 121. During long-term use, the spring 03 will still rotate and tilt with the first limiting portion 121 as the axis. This is because the second limiting portion 122 still applies pressure to the spring coil of the spring 03, causing the spring coil of the spring 03 to be stretched and enlarged, and then the second limiting portion 122 can no longer play a good limiting role, eventually causing the spring 03 to slip from the water outlet end 12.

[0114] Preferably, the first limiting portion 121 can be set as two intersecting strip blocks, which pass vertically through the axis of the water outlet end 12 and the two ends of each strip block are fixed to the inner wall of the water outlet end 12. When only one first limiting portion 121 is set, the spring 03 will be unstable when abutting. When the valve core 02 moves downward, the end of the spring 03 abutting the valve core 02 tilts toward the side without the limiting rib 22, thereby causing the end of the spring 03 abutting the first limiting portion 121 to also tilt. If the tilting direction happens to be on both sides of the first limiting portion 121, the spring 03 will fall from the gaps on both sides, the valve core 02 cannot return to its original position, and the liquid in the waterway continues to flow out from the water outlet end 12, causing waste.

[0115] Preferably, the intersection angle of the cross-set first limiting parts 121 is set to 90 degrees, and the mutually perpendicular first limiting parts 121 have stronger stability. The two mutually perpendicular first limiting parts 121 can basically solve the problem of the spring 03 sliding off the water outlet end 12. In order to make it more stable, more first limiting parts 121 can be set or the first limiting parts 121 can be set as a mesh disk. The outer edge of the mesh disk fits and adapts to the inner wall of the water outlet end 12. However, if too many first limiting parts 121 are set, the space occupied will also become more, leaving space for liquid to flow out of the gap. The smaller the space for outflow, the slower the overflow speed will be. When the water pressure is too high, more liquid needs to overflow to balance the water pressure. If these excess liquids do not overflow in time and accumulate in the pressure relief valve, the pressure relief function of the water channel cannot be achieved. Similarly, if the first limiting portion 121 is set to a mesh disk, on the one hand, the stability is greatly improved, but at the same time its passability is also limited. On the whole, the first limiting portion 121 is set to two intersecting strip blocks, and the solution in which the two strip blocks are perpendicular to each other is the most preferred.

[0116] Specifically, in other possible embodiments, the water outlet end 12 is configured as a cylinder protruding from the middle of the water outlet end 12 of the valve body 01 in a direction away from the water outlet end 12, the interior of the cylinder is hollow, the end of the water outlet end 12 close to the water inlet end 11 is open, and the end of the water outlet end 12 away from the water inlet end 11 is closed, and the end surface of the closed end is a first limiting portion 121, and a second limiting portion 122 extending perpendicularly to the first limiting portion 121 in the direction of the water inlet end 11 is provided from the middle of the first limiting portion 121, and a through hole is provided in the middle of the second limiting portion 122, so that the interior of the valve body 01 is connected with the outside world, and excess liquid overflows from the through hole in the middle of the second limiting portion 122.

[0117] Specifically, when the water pressure is too high, excess liquid flows into the valve body 01, and the liquid will first accumulate in the space surrounded by the outer periphery of the second limiting portion 122, the inner wall of the water outlet end 12 and the first limiting portion 121. When the height of the liquid is higher than the second limiting portion 122, it will flow out from the through hole in the middle of the second limiting portion 122. The diameter of the second limiting portion 122 can be set to be the same as the diameter of the inner wall of the spring coil of the spring 03. The spring 03 is sleeved on the second limiting portion 122, and the inner wall of the spring coil of the spring 03 abuts against the outer periphery of the second limiting portion 122. In this way, on the one hand, The spring 03 plays a better fixing role. On the other hand, as the diameter of the second limiting portion 122 is increased, the through hole in the middle of the second limiting portion 122 can also be increased accordingly, which can speed up the overflow of the liquid. Because the liquid will accumulate in the space surrounded by the outer periphery of the second limiting portion 122, the inner wall of the water outlet end 12 and the first limiting portion 121 before overflowing from the middle of the second limiting portion 122, the spring 03 will rust and other problems when immersed in liquid for a long time, thereby reducing the service life of the spring 03. To address this problem, there are the following solutions.

[0118] Specifically, one is to fix the end of the spring 03 away from the water inlet directly on the end surface of the second limiting part 122 close to the water inlet end 11. At this time, the spring 03 will only contact the liquid when the water level reaches the top of the second limiting part 122. In other states, the water level cannot reach the height of contacting the spring 03, thereby reducing the contact time between the spring 03 and the liquid; the second is to provide a plurality of through holes on the peripheral wall of the second limiting part 122, which are the same as the through holes passing through the middle part of the second limiting part 122. At this time, after the liquid flows into the water outlet end 12, There is no need to wait until the water level reaches the top of the second limiting part 122 before overflowing it. The liquid can overflow through the through holes on the peripheral wall of the second limiting part 122 before reaching the top; thirdly, the first limiting part 121 is set to a mesh shape, and the overflow function is realized through the first limiting part 121. If the water pressure is too high, the amount of water that needs to overflow increases, and the overflow efficiency of the mesh structure of the first limiting part 121 is not enough to discharge all the liquid. At this time, the through holes in the middle of the second limiting part 122 can still continue to play a role, so that the device can work normally.

[0119] Specifically, the valve core 02 is provided with a water passage 23. This passage 23 comprises a central column 231, coaxially arranged with the main body of the valve core 02; support ribs 232, extending radially from the peripheral wall of the central column 231 away from the axis of the central column 231. The ribs abut the inner wall of the water inlet end 11 on the side away from the axis of the central column 231. The ribs 232 comprise at least three ribs evenly spaced along the circumference. A guide groove 234 is provided between adjacent support ribs 232. These guide grooves 234 extend from the top to the bottom of the valve core 02, extending long enough to ensure a seal between the valve core 02 and the water inlet end 11 under normal conditions.

[0120] Specifically, the guide groove 234 is provided to guide the liquid in the water path into the pressure relief valve. When the water path pressure is within a normal range, the valve core 02 remains stationary, and a certain amount of liquid exists between the guide grooves 234 at the top of the valve core 02. When the water path pressure increases, since the guide groove 234 extends a distance toward the bottom of the valve core 02, when the valve core 02 moves downward a short distance, the excess liquid will flow from the guide groove 234 into the valve body 01, which can quickly reduce the pressure in the water path, thereby achieving a dynamic balance effect.

[0121] As shown in FIG15 and FIG16 , a washing machine includes a water box with a water delivery channel provided therein. The water delivery pressure relief device in the first embodiment is provided on the water box, and the water inlet end is connected to the water delivery channel.

[0122] The waterway pressure relief device is integrated on the water box. Specifically, a plug 4 is provided on the water box, and the plug 4 is provided at the water outlet 12 of the pressure relief device. The pressure relief device is provided perpendicular to the waterway from the water inlet 11 to the water outlet 12.

[0123] Specifically, the plug 4 is configured as a cylinder with a through hole in the middle, the outer circumference of the cylinder is adapted to the water outlet end 12, and a connecting portion 41 is provided on the side of the cylinder away from the water inlet end 11. The connecting portion 41 is configured to extend from the opposite sides of the cylinder in a direction away from the cylinder, and a connecting hole 411 is provided in the extended portion, and a mounting portion adapted to the connecting hole 411 is provided on the water box.

[0124] Specifically, the plug 4 is fixedly connected to the water box by screws. The screws pass through the connecting hole 411 and are rotated and screwed into the mounting portion to fix the plug 4 to the water box. The raised part of the plug is inserted into the water outlet end 12, and the first limiting portion 121 and the second limiting portion 122 are arranged in the through hole of the plug 4.

[0125] 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 using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above 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 washing additive delivery device, comprising a water storage tank (1), an upper cover (3) buckled on the top of the water storage tank, a water channel (300) integrated inside the upper cover (3); a water outlet (304) of the water channel (300) is provided on the bottom wall of the upper cover (3), and the water outlet (304) is opened toward the water storage tank (1); characterized in that: The upper cover (3) and / or the water storage tank (1) are provided with a splash-proof structure for preventing the splashing of the incoming water flow entering the water storage tank (1) from the water outlet (304) of the water channel.

2. A washing additive dosing device according to claim 1, characterized in that: The splash-proof structure comprises a water receiving surface (5) arranged at the bottom of the water storage tank (1), the water receiving surface (5) being located below the water outlet (301) of the water channel, and a splash-proof rib (7) extending vertically upward is arranged on the water receiving surface (5); Preferably, the water receiving surface (5) is a slope that slopes downward toward the center of the water storage tank (1).

3. A washing additive dosing device according to claim 2, characterized in that: The water-splash-proof rib (7) is a columnar vertical rib extending vertically upward, and the cross section of the water-splash-proof rib (7) is a square; the upper end surface of the water-splash-proof rib (7) is an inclined surface parallel to the water receiving surface (5).

4. A washing additive delivery device according to claim 3, characterized in that: The upper surface of the water receiving surface (5) is provided with a plurality of anti-splash ribs (7) arranged in a plurality of rows and columns; the waterproof ribs (7) are arranged at the same height; the upper end surfaces of the waterproof ribs (7) are located in the same plane, and the above plane is arranged parallel to the water receiving surface (5); Preferably, the arrangement line of the same row of anti-splash ribs (7) intersects the front and rear azimuth lines of the water storage tank (1) at a certain angle.

5. A washing additive dosing device according to any one of claims 2 to 4, characterized in that: A strip baffle (6) extending vertically upward is provided on the side of the water receiving surface (5) facing the front opening of the water storage tank (1), and the strip baffle (6) is higher than the top of the splash-proof rib (7); Preferably, the water receiving surface (5) is arranged at a corner on the rear side of the water storage tank (1), and the strip baffle (6) is arranged on the side of the water receiving surface (5) facing the front opening of the water storage tank (1), and one side of the strip baffle (6) is in close contact with the corresponding side wall of the water storage tank (1), so that the water receiving surface (5) only uses the side facing the middle of the water storage tank (1) to supply water to the water storage tank (1).

6. A washing additive dosing device according to any one of claims 1 to 5, characterized in that: A water receiving tray (8) is buckled at a water outlet (304) provided on the lower wall of the upper cover (3); the interior of the water receiving tray (8) is hollow, and the water outlet (304) is connected to the hollow chamber inside the water receiving tray (8); and the bottom surface of the water receiving tray (8) is provided with a plurality of water outlet holes (801) arranged at intervals and penetrating the bottom surface of the water receiving tray (8).

7. A washing additive delivery device according to claim 6, characterized in that: The water receiving tray (8) is cylindrical and is coaxially arranged with the water outlet (304). The upper opening of the water receiving tray (8) is correspondingly and sealingly buckled with the bottom wall of the upper cover (3) outside the water outlet (304), so that the water outlet (304) is connected with the hollow chamber inside the water receiving tray (8). The radial dimension of the water receiving tray (8) is larger than the radial dimension of the water outlet (304). All the water outlet holes (801) opened on the bottom wall of the water receiving tray (8) are located vertically above the water receiving surface (5).

8. A washing additive delivery device according to claim 6, characterized in that: The water outlet holes (801) provided on the bottom surface of the water receiving tray (8) are openings with an axis extending vertically and opening vertically downward; at least a portion of each water outlet hole (801) is located vertically above the anti-splash rib (7).

9. A washing additive dosing device according to any one of claims 1 to 8, characterized in that: The water receiving surface (5) is the upper surface of the bottom wall of the water storage tank (1), or the upper surface of an independent component fixedly mounted on the inner wall of the water storage tank (1); The water receiving tray (8) is integrally arranged with the upper cover (3), or is an independent component fixedly connected to the bottom wall of the upper cover (3).

10. A washing additive dosing device according to any one of claims 1 to 9, characterized in that: A water channel (300) integrated in the upper cover (3) is provided with an air vent (306) connected to the outside, and the air vent (306) is arranged near the water outlet (304); Preferably, the air hole (306) is provided with an air valve to prevent the liquid in the waterway (300) from flowing out.

11. A waterway pressure relief device, comprising: The valve body (01) and the water inlet end (11) are connected to the water circuit; The valve core (02) is arranged in the valve body (01), adapted to the shape of the water inlet end (11) of the valve body (01), and an elastic member is arranged between the valve core and the water outlet end (12) of the valve body (01), and is characterized in that: It also includes a limiting rib (22) which is arranged on the end face of the valve core (02) away from the water inlet end (11) and protrudes from the end face partially toward the water outlet end (12); one end of the elastic member abuts against the valve core (02), one side abuts against the end face of the valve core (02), and the other side abuts against the limiting rib (22).

12. A waterway pressure relief device according to claim 11, characterized in that: A limiting column (21) extending along the middle of the valve core (02) towards the water outlet end (12) is arranged at one end of the valve core (02) away from the water inlet end (11), a limiting rib (22) is arranged on one side of the limiting column (21), and an elastic member is sleeved on the outer periphery of the limiting column (21).

13. A waterway pressure relief device according to claim 12, characterized in that: The limiting rib (22) extends from the peripheral wall of the limiting column (21) in a direction away from the axis of the limiting column (21), and the axial length of the limiting rib (22) gradually decreases in the direction away from the axis of the limiting column (21); Preferably, the end surface of the limiting rib (22) away from the end of the valve core (02) is configured as an arc-shaped surface that is higher in the middle and lower on both sides.

14. A waterway pressure relief device according to claim 13, characterized in that: The limiting ribs (22) include: The first limiting rib (221) comprises two parts extending from the peripheral wall of the limiting column (21) in directions away from each other, and forming a first angle with the extending direction of the limiting rib (22); The second limiting rib (222) extends from the end of the first limiting rib (221) in a direction close to each other, and the ends are connected, and form a second angle with the extension direction of the limiting rib (22); Preferably, the first angle is greater than the second angle.

15. A waterway pressure relief device according to any one of claims 11 to 14, characterized in that: The caliber of the water outlet end (12) of the valve body (01) is greater than or equal to the diameter of the elastic member, and a limiting structure abutting against the end of the elastic member is provided inside the water outlet end (12).

16. A waterway pressure relief device according to claim 15, characterized in that: The limiting structure includes: The first limiting portion (121) extends radially along the water outlet end (12), and its two ends are connected to the inner wall of the water outlet end (12); the second limiting portion (122) protrudes and extends from the middle of the first limiting portion (121) in the direction of the water inlet end (11); and one end of the elastic member away from the valve core is sleeved on the outer periphery of the second limiting portion (122) and abuts against the first limiting portion (121).

17. A waterway pressure relief device according to claim 16, characterized in that: The first limiting portions (121) include a plurality of first limiting portions (121) which are arranged in an interlaced manner, and one end of each first limiting portion (121) close to the valve core (02) is coplanar.

18. A waterway pressure relief device according to any one of claims 11 to 14, characterized in that: The valve core (02) comprises a valve core (02) body, and a water passing portion (23) arranged on a side of the valve core (02) body away from the water outlet end (12), wherein the water passing portion (23) comprises: A center column (231) is coaxially arranged with the valve core (02) body; The support ribs (232) extend radially from the peripheral wall of the central column (231) in a direction away from the axis of the central column (231), and abut against the inner wall of the water inlet end (11) on the side away from the axis of the central column (231), and include at least three support ribs evenly arranged along the circumferential direction.

19. A waterway pressure relief device according to claim 18, characterized in that: A groove (235) is provided at one end of the water passing portion (23) away from the water outlet end (12), and the inner diameter of the groove (235) gradually decreases in a direction approaching the water outlet end (12).

20. A washing machine, characterized in that: A waterway pressure relief device as described in any one of claims 11-19 is installed.

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