A washing machine water inlet box structure and washing machine

Abstract

The present invention provides a water filling box structure for a washing machine and a washing machine. The water filling box structure comprises: a water filling box with a hollow interior, a delivery box that can be pulled outward and installed in the water filling box, a water filling chamber provided at the top of the water filling box, a water inlet provided at the bottom of the water filling chamber for injecting water into the delivery box, and an overflow port directly connected to the hollow chamber of the water filling box. In the present invention, by providing an overflow port in the water filling chamber of the water filling box, water flowing through the delivery chamber can be diverted from the overflow port, thereby avoiding the occurrence of overflow of water from the water filling box due to excessive water inflow. In addition, by connecting the water filling chamber to the outside through the overflow port, the air pressure in the water filling chamber is kept consistent with that in the water filling box, thereby achieving a significant technical advancement in adjusting the air pressure in the water filling chamber accordingly.

Description

Technical Field

[0001] This invention belongs to the technical field of clothing processing equipment, specifically relating to a water inlet box structure for a washing machine, and also to a washing machine equipped with the above-mentioned water inlet box structure. Background Technology

[0002] As consumers' pursuit of a higher quality of life increases, washing machines have become indispensable in people's lives. The water inlet box, an important component of the washing machine, is typically made of plastic. Inside the water inlet box is a pull-out dispensing tray containing detergent, liquid detergent, disinfectant, fabric softener, and other additives. The water flowing through the inlet box flushes these additives into the washing machine drum, thus washing and wetting the load inside.

[0003] The existing water inlet box structure generally has a section at the top of the water inlet box that forms an independent water inlet chamber. The water flow from the washing machine is first introduced into the water inlet chamber, buffered and diverted by the water inlet chamber, and then flows into the dispensing box through the water inlet of the water inlet chamber.

[0004] However, because the water pressure of the washing machine's water supply source may be too high or unstable, the water flow into the water inlet chamber may be too rapid, which may cause excessive pressure in the water inlet chamber, fluctuations in the flow rate of the water flowing to the dispensing box, and even cause the water inlet box to overflow and leak.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a washing machine water inlet box structure to divert the excessively rapid water flow into the water inlet box to avoid water overflow; at the same time, the present invention also provides a washing machine water inlet box structure to achieve the purpose of regulating the air pressure inside the water inlet box and stabilizing the water flow rate.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0008] A water inlet box structure for a washing machine includes: a hollow water inlet box, a dispensing box that can be pulled outward and installed in the water inlet box, a water inlet cavity at the top of the water inlet box, a water inlet at the bottom of the water inlet cavity for injecting water into the dispensing box, and an overflow outlet in the water inlet cavity that is directly connected to the hollow cavity of the water inlet box.

[0009] Furthermore, the water inlet and the overflow outlet are respectively located at opposite ends of the water inlet cavity along the pulling direction of the dispensing box; preferably, the water inlet is located at the first end of the water inlet cavity, which is the end of the water inlet cavity facing the pulling direction of the dispensing box; the overflow outlet is located at the second end of the water inlet cavity, which is the end of the water inlet cavity facing the pushing direction of the dispensing box.

[0010] Furthermore, a curved and folded flow channel is formed inside the water injection chamber. One end of the flow channel is connected to the water inlet of the water injection chamber. The water inlet is located at the fold in the middle of the flow channel, and the overflow outlet is located in the flow channel downstream of the water inlet. Preferably, the overflow outlet and the water inlet are located at opposite ends of the flow channel.

[0011] Furthermore, the water injection cavity is provided with a dividing rib extending along the push-pull direction of the dispensing box in the middle. The dividing rib divides the water injection cavity into left and right parts. One end of the dividing rib is connected to the inner wall of the first end of the water injection cavity, and the other end is spaced apart from the inner wall of the second end of the water injection cavity. The second ends of the left and right parts are separated by the dividing rib and connected to the first ends. The second end of the left part of the water injection cavity is connected to the water inlet of the water injection cavity, and the overflow outlet is located at the second end of the right part of the water injection cavity. Multiple water injection ports that are opened vertically are arranged on the bottom wall of the cavity at the first end of the left part of the water injection cavity, and / or the first end of the right part, and / or the connection between the two.

[0012] Furthermore, the bottom wall of the left part of the water injection cavity is an inclined surface that gradually slopes downward from the second end to the first end.

[0013] Furthermore, the bottom wall of the right part of the water injection cavity is provided with an opening that runs vertically through the cavity and forms an overflow outlet; preferably, the opening of the water injection cavity is provided with an upwardly protruding water-blocking ring, the top of the water-blocking ring being lower than the top wall of the water injection cavity but higher than the height of the water injection outlet, and the opening and the hollow part of the water-blocking ring together form an overflow outlet.

[0014] Furthermore, the overflow outlet and the projection of the dispensing box in the horizontal plane are arranged in an interlaced manner; preferably, there is a gap between the push-in end of the dispensing box and the inner wall of the water injection box, the overflow outlet of the water injection chamber is located above the gap space, and the overflow water flowing out of the overflow outlet is directly injected into the water injection box chamber below the dispensing box through the gap space.

[0015] Furthermore, the dispensing box has a dispensing chamber with an open top for dispensing additives, and the water inlet of the water inlet is located above the open top of the dispensing chamber; the dispensing chamber is provided with a siphon structure that connects the interior of the dispensing chamber with the bottom space of the water inlet box below the dispensing box, and the projections of the water inlet and the siphon structure in the horizontal plane are staggered; preferably, the water inlet is located above the first end of the dispensing box, and the siphon structure is located at the second end of the dispensing box.

[0016] Furthermore, a water distribution plate is fastened to the lower part of the top wall of the water injection box, and the water distribution plate and the top wall of the water injection box together form a water injection cavity.

[0017] Furthermore, the dispensing box is equipped with multiple dispensing chambers, and the top of the water injection box is equipped with a water injection chamber that corresponds to each dispensing chamber. Each water injection chamber is equipped with a water inlet that is connected to the outside of the water injection box.

[0018] Compared with the prior art, the present invention, by employing the above-described technical means, has the following significant technical advancements:

[0019] 1. In this invention, by opening an overflow port on the water injection chamber of the water injection box, the water flow passing through the injection chamber can be diverted from the overflow port, thus avoiding the situation where the water injection box overflows due to excessive water intake.

[0020] 2. Furthermore, by setting an overflow port on the water injection chamber of the water injection box in this invention, the water injection chamber can be connected to the outside through the overflow port, so that the air pressure in the water injection chamber is consistent with that in the inner chamber of the water injection box, thereby achieving a significant technical advancement in adjusting the air pressure in the water injection chamber and stabilizing water injection.

[0021] The present invention also introduces a washing machine, wherein the washing machine is equipped with any of the washing machine water inlet box structures described above.

[0022] Meanwhile, the present invention has a simple structure and significant effects, and is intended for widespread use.

[0023] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0025] Figure 1 This is a schematic diagram of the water injection box in an embodiment of the present invention;

[0026] Figure 2 This is a top view of the water injection box in an embodiment of the present invention;

[0027] Figure 3 This is an embodiment of the present invention. Figure 2 Schematic diagram of the AA cross-section structure;

[0028] Figure 4 This is a schematic diagram of the water injection box assembly in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the water injection box assembly after the water distribution plate is removed in an embodiment of the present invention;

[0030] Figure 6 This is an embodiment of the present invention. Figure 4 Schematic diagram of the BB cross-section structure;

[0031] Figure 7 This is another embodiment of the present invention. Figure 4 Schematic diagram of the BB cross-section structure;

[0032] Figure 8 This is a schematic diagram of the water distribution plate in an embodiment of the present invention.

[0033] Description of main components in the diagram:

[0034] 1. Shell; 2. Outlet; 3. Water inlet channel; 4. Waterproof plate; 5. Water baffle; 6. Outlet cavity; 7. Protrusion; 8. Flow channel; 9. Narrow section; 10. Water collection section; 11. Bottom wall; 12. Left side wall; 13. Right side wall; 14. Rear side wall; 15. Dispensing cavity; 16. Water filling cavity; 17. Dividing rib; 18. Water inlet; 19. Overflow outlet; 20. Left part; 21. Right part; 22. Spacing space; 23. Siphon structure; 24. Water baffle ring; 25. Water guide ring; 26. Flow channel; 100. Water filling box; 200. Dispensing box; 300. Water distribution plate.

[0035] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0036] To make the objectives, 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 with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] like Figures 1 to 8 As shown in the figure, this embodiment of the invention introduces a water inlet box structure and a washing machine. The water inlet box structure includes a water inlet box 100 fixedly installed on the washing machine. Water flowing from the washing machine's inlet pipe flows into the water inlet box 100, and the water flowing through the water inlet box 100 is injected into the washing machine's drum through the outlet, wetting and washing the load contained in the drum. Simultaneously, a pull-out dispensing box 200 is installed on the water inlet box 100. The dispensing box 200 has a dispensing cavity 15 for dispensing additives such as laundry detergent, washing powder, fragrance, and disinfectant. At least a portion of the washing machine's inlet water flowing through the water inlet box 100 flows through the dispensing cavity 15, flushing the additives in the dispensing cavity 15 into the washing machine drum along with the water flow, thus processing the load inside the drum.

[0040] In this embodiment of the invention, the washing machine is preferably a pulsator washing machine. The pulsator washing machine has a control panel on the upper part of its outer casing. An outer tub with an opening at the top is installed inside the outer casing. An inner tub, which can be driven to rotate by a motor, is installed inside the outer tub. A pulsator, which can rotate independently or rotate together with the inner tub, may also be installed in the inner tub. The water inlet box 100 is installed on the control panel of the pulsator washing machine. The control panel has a clothes loading port in the middle corresponding to the tub opening. The front end of the water inlet box 100 is connected to the clothes loading port. The water outlet of the water inlet box 100 faces downwards, allowing the water flowing from the outlet of the water inlet box 100 to be directly sprayed into the inner tub through the tub opening, thereby achieving the purpose of water intake into the tub through the water inlet box 100.

[0041] like Figures 4 to 8 As shown, in this embodiment of the invention, the water injection box 100 includes a housing 1, the interior of which is hollow to form a chamber through which the washing machine water flows; the bottom of the housing 1 is provided with a water outlet 2, and the washing machine water flowing into the housing 1 flows out through the water outlet 2 and into the washing machine tub.

[0042] In this embodiment of the invention, the housing 1 of the water injection box can be a housing structure with an opening only at the front end, allowing the dispensing box 200 to be inserted into the water injection box 100 from front to back or pulled out from back to front, so that the top wall of the water injection box 100 is formed by the top of the housing 1 (not shown in the drawings); at the same time, in this embodiment of the invention, the housing 1 of the water injection box 100 can also be set as a structure with an open top, so that the water injection box 100 is installed on the control panel base, and the control panel base is used to close the upper opening of the housing 1, so that the top wall of the cavity formed inside the housing 1 of the water injection box 100 is formed by the control panel base, so that the top wall of the cavity formed inside the housing 1 of the water injection box 100 is formed by the control panel base, and the purpose of forming the housing 1 of the water injection box into a cavity structure with an opening only at the front end for the washing machine water to flow through can still be achieved.

[0043] In this embodiment of the invention, the top of the washing machine water inlet box 100 is provided with a water inlet chamber 16, and the water inlet chamber 16 is provided with a water inlet. The water inlet is connected to the washing machine water inlet pipe to guide the washing machine water flow into the water inlet chamber 16. Generally, the water inlet of the water inlet chamber is located on the top wall of the water inlet box so that water enters from top to bottom (not shown in the drawings). At the same time, the bottom of the water inlet chamber 16 is provided with a downward-opening water inlet 18, which is connected to the dispensing cavity 15 provided on the dispensing box 200. This allows the water inlet 18 to flow into the dispensing cavity 15 of the dispensing box 200, using the water flow to flush the additives in the dispensing cavity 15, thereby achieving the purpose of dispensing the additives along with the water flow.

[0044] In this embodiment of the invention, the water injection cavity 16 is located above the dispensing box 200, so that the dispensing box 200 and the water injection cavity 16 do not interfere with each other when the dispensing box 200 is pulled and displaced, and the water flowing out of the water injection port 18 from the water injection cavity 16 can flow directly into the dispensing cavity 15 provided on the dispensing box 200 under the action of gravity.

[0045] In this embodiment of the invention, the bottom of the water injection chamber 16 is provided with a water injection port 18 for injecting water into the dispensing box 200; the water injection chamber 16 is also provided with an overflow port 19 that is directly connected to the hollow cavity of the water injection box 100 without going through the dispensing box 200.

[0046] In this invention, by opening an overflow port 19 on the water injection chamber 16, the incoming water flow through the injection chamber can be diverted through the overflow port 19. Furthermore, by setting the overflow port 19, the water injection chamber 16 can be connected to the outside through the overflow port 19, so that the air pressure inside the water injection chamber 16 is consistent with the inner cavity of the water injection box 100, thereby achieving the purpose of correspondingly regulating the air pressure inside the water injection chamber 16. At the same time, by opening a dedicated overflow port 19 on the water injection chamber 16, the overflow water flow can be diverted, avoiding the overflow from the top of the water injection box 100 to the outer periphery when the incoming water flow rate of the water injection box 100 is too fast.

[0047] like Figures 4 to 8 As shown in the embodiment of the present invention, the top of the water injection box 100 is provided with a water distribution plate 300. The water distribution plate 300 is directly fastened to the top wall of the water injection box 100, or is provided with an open portion corresponding to the top part of the water injection box 100, so that the water distribution plate 300 and the top wall of the water injection box 100, or the water distribution plate 300 and the inner wall of the control panel base together form a water injection cavity 16.

[0048] In this embodiment of the invention, the water inlet 18 and the overflow outlet 19 of the water inlet cavity 16 are respectively located at opposite ends of the water inlet cavity 16 along the pulling direction of the dispensing box 200. Preferably, the dispensing box 200 is installed in the water inlet box 100 and can be pulled out in the front-to-back direction. The water inlet 18 is located at the first end of the water inlet cavity 16, which is the end of the water inlet cavity 16 facing the pulling direction of the dispensing box 200. The overflow outlet 19 is located at the second end of the water inlet cavity 16, which is the end of the water inlet cavity 16 facing the pushing direction of the dispensing box 200. More preferably, the first end faces the front of the washing machine, and the second end faces the rear of the washing machine. Thus, the overflow outlet 19 and the water inlet 18 are arranged far apart, minimizing mutual interference between them.

[0049] In this embodiment of the invention, the water injection chamber 16 of the water injection box is partially located above the dispensing box 200 and partially staggered with the dispensing box 200, so that the water normally injected from the water injection port 18 into the water injection chamber 16 flows through the dispensing box 200 and then into the chamber of the water injection box 100, using the water to dispense the additive in the dispensing box 200; it also allows the overflow water flowing out from the overflow port 19 to flow directly into the water injection box 100, so as to avoid the problem of overflow water from the water injection box affecting the dispensing of additives.

[0050] Preferably, in this embodiment of the invention, the dispensing box 200 has a dispensing cavity 15 with an open top for dispensing additives. The water inlet 18 of the water inlet 16 is located above the open top of the dispensing cavity 15, so that the water inlet 18 can be directly injected into the dispensing cavity 15, thereby achieving the purpose of flushing and dispensing the additives in the dispensing cavity 15.

[0051] Meanwhile, in this embodiment of the invention, there is a certain gap space 22 between the push-in end of the dispensing box 200 and the inner wall of the water injection box 100. The overflow port 19 of the water injection chamber 16 is located above the gap space 22 between the dispensing box and the water injection box 100. The overflow water flowing out of the overflow port 19 is directly injected into the water injection box 100 chamber below the dispensing box 200 through the gap space 22, so that the overflow water of the water injection chamber is directly dispensed through the water injection box 100 chamber.

[0052] In this embodiment of the invention, the dispensing cavity 15 is provided with a siphon structure 23 that connects the interior of the dispensing cavity 15 with the bottom space of the water injection box 100 below the dispensing box 200, and the water injection port 18 is arranged alternately with the siphon structure 23; preferably, the water injection port 18 is located above the pull-out end of the dispensing box 200, and the siphon structure 23 is located at the push-in end of the dispensing box 200.

[0053] like Figures 4 to 8 As shown in this embodiment of the invention, a dividing rib 17 extending along the push-pull direction of the dispensing box 200 is provided in the middle of the water injection cavity 16. The dividing rib divides the water injection cavity 16 into left and right parts 20 and 21. The first ends of the left and right parts 20 and 21 are divided into independent areas by the dividing rib 17, and the first ends of the left and right parts 20 and 21 are connected to the water injection cavity 16 through the gap between the dividing rib 17, so that a curved and folded flow channel 26 is formed in the water injection cavity 16. The water inlet of the water injection cavity 16 is connected to the top of the second end of the left part 20 of the water injection cavity 16, and the overflow outlet 19 is provided at the bottom wall of the second end of the right part 21 of the water injection cavity 16. Multiple water inlets 18 are arranged vertically through the bottom wall of the chamber at the first end of the left part 20 and / or the first end of the right part 21 and / or the connection between the two.

[0054] This creates a curved and zigzag flow channel 26 within the water injection chamber 16. An inlet and an overflow outlet 19 are respectively located at both ends of the flow channel 26, ensuring that the overflow outlet 19 is maximized to be farthest from the water inlet position of the water injection chamber 16, thus preventing accidental discharge of overflow water. Simultaneously, the water inlet 18 is positioned at the bend of the curved and zigzag flow channel 26, allowing the water in the water injection chamber 16 to change direction due to the guiding effect of the inner wall of the water injection chamber 16 and the dividing ribs 17, guiding the water in the water injection chamber 16 to flow out from the water inlet 18.

[0055] like Figures 4 to 8 As shown in the embodiment of the present invention, the extension length of the dividing rib 17 in the pulling direction of the dispensing box 200 is less than the extension length of the water injection cavity 16; one end of the dividing rib 17 is sealed and connected to the second end of the water injection cavity 16, and the other end is spaced apart from the first end of the water injection cavity 16, so that the water inlet and the overflow outlet 19 of the water injection cavity 16 are isolated by the dividing rib 17, thereby achieving the purpose of maximizing the distance between the overflow outlet 19 and the water inlet position of the water injection cavity 16.

[0056] Meanwhile, preferably, in this embodiment of the invention, the protrusion height of the dividing rib 17 is lower than or equal to the height of the water injection cavity 16, so that when the water inlet is too rapid, part of the water flow injected into the water injection cavity 16 can jump over the dividing rib 17 and be diverted to another part, so as to achieve the effect of regulating the pressure of the inlet water flow and maintaining a stable water shape flowing out of the water injection port 18.

[0057] like Figure 8As shown in the embodiment of the present invention, the dividing rib 17 is disposed on the water dividing plate 300, and the dividing rib 17 is a vertical rib that extends upward from the upper side of the water dividing plate 300; preferably, the dividing rib 17 is integrally disposed with the water dividing plate 300.

[0058] In this embodiment of the invention, in order to increase the pressure of the water flowing out of the water inlet 18 and guide the water in the water inlet 16 to converge and flow towards the water inlet 18, the following settings are made: the bottom wall of the left portion 20 of the water inlet 16 is a slope that gradually slopes downward from the second end to the first end, so that the water flowing into the water inlet 16 from the water inlet can be guided by gravity to converge and flow towards the water inlet 18. In this embodiment, in order to make the water flowing into the water inlet 16 spray out evenly from each water inlet 18, the bottom wall of the right portion 21 of the water inlet 16 is set as a slope that gradually slopes downward from the second end to the first end, so that the bottom wall of the entire flow channel 26 is a slope that gradually slopes downward along the water flow direction, thereby adjusting the water pressure of each water inlet 18 arranged along the water flow direction and keeping it consistent.

[0059] Preferably, in this embodiment of the invention, the bottom wall of the right part 21 of the water injection cavity 16 can also be set as an inclined surface that gradually slopes downward from the second end to the first end, so as to avoid the generation of residual water in the water injection cavity 16 (not shown in the figure).

[0060] like Figure 6 As shown in the embodiment of the present invention, the bottom wall of the right part 21 of the water injection cavity 16 is provided with an opening that runs vertically through it, and the opening constitutes an overflow port 19; the overflow port 19 is an inverted conical opening that gradually curves downward from the outer periphery to the center, so as to facilitate the outward discharge of water.

[0061] like Figure 7 As shown, in this embodiment of the invention, to prevent untriggered overflow from the water inlet 16 from flowing out of the overflow port 19 and reducing the water pressure at the water inlet 18, the following configuration can be made: A water-blocking ring 24 extending upwards is provided at the opening on the bottom wall of the right portion 21 of the water inlet 16. The height of the water-blocking ring 24 is lower than the top wall of the water inlet 16 and higher than the height of the water inlet 18. The opening and the hollow portion of the water-blocking ring 24 together constitute the overflow port 19. Through the above configuration, the height of the overflow port 19 is higher than that of the water inlet 18, thereby preventing the water inlet in the water inlet 16 from accidentally overflowing from the overflow port 19 and increasing the water pressure at the water inlet 18.

[0062] Preferably, in this embodiment of the invention, to further prevent overflow water from spreading in other directions, especially from flowing into the dispensing chamber 15 and interfering with the dispensing of additives, the following settings can also be made:

[0063] like Figure 6 and Figure 7As shown, a downward-protruding water guide ring 25 is provided below the water distribution plate 300, located on the outer periphery of the overflow port 19, to guide the overflow water flowing from the overflow port 119 through the spacing space 22 directly to the lower space of the water injection box 100; more preferably, the bottom end of the water guide ring 25 is lower than the top wall of the injection box 200 and extends into the spacing space 22 between the injection box 200 and the water injection box 100, so as to prevent the overflow water from flowing into the injection box 200.

[0064] like Figures 4 to 8 As shown in the embodiment of the present invention, the dispensing box 200 is provided with a plurality of dispensing chambers 15, and the top of the water injection box 100 is provided with water injection chambers 16 corresponding to each of the dispensing chambers 15. Each water injection chamber 16 is provided with a water inlet communicating with the outside of the water injection box 100. Preferably, the dispensing box 200 is provided with a plurality of dispensing chambers, and the dispensing chambers 15 are arranged sequentially in a direction perpendicular to the pulling of the dispensing box 200, i.e., the left-right direction of the washing machine. The top of the water injection box 100 is provided with a plurality of water injection chambers 16 corresponding to each of the dispensing chambers 15. At least one water injection chamber 16 is configured with the above-described structure. More preferably, each water injection chamber 16 is composed of different water dividing plates 300, and at least one water dividing plate 300 surrounds the water injection chamber 16 with the above-described structure.

[0065] like Figures 1 to 3 As shown in the embodiment of the present invention, the bottom of the housing 1 of the water injection box is provided with a flow-guiding and pressurizing structure that guides the water inside the housing to the outlet 2 and increases the water pressure at the outlet.

[0066] By setting a flow-inducing and pressurizing structure at the bottom of the water inlet box, the water pressure at the outlet of the water inlet box is increased, causing the water flowing out of the outlet to disperse to the left and right sides, making the water flow into the tub form a waterfall shape. This increases the coverage area of ​​the water flow into the washing machine tub through the water inlet box, allowing most of the load in the tub to be effectively wetted, thus greatly improving the washing effect of the washing machine.

[0067] like Figures 1 to 3 As shown, in this embodiment of the invention, the flow-increasing and pressurizing structure includes: a downwardly recessed water-inducing groove 3 at the bottom of the housing 1, the lowest point of which is connected to the water outlet 2 of the water injection box. By setting the water-inducing groove 3 at the bottom of the housing 1, the water inside the housing 1 is guided by the water-inducing groove 3 to converge at the water outlet 2 of the water injection box, thereby increasing the water pressure at the water outlet 2 of the water injection box, thus improving the water dispersion effect, making the water flow from the water injection box into the tub form a waterfall shape and increasing the coverage area of ​​the water inlet of the washing machine; at the same time, through the setting of the water-inducing groove 3, all the water in the water injection box can be discharged through the water outlet 2, effectively avoiding water residue in the water injection box.

[0068] In this embodiment of the invention, the outlet 2 is located on the bottom wall 11 of the housing on the front side of the water inlet trough 3. The outlet 2 is a strip-shaped opening extending downwards along the left-right direction of the water injection box. The bottom wall of the water inlet trough 3 is an inclined surface that gradually slopes downwards towards the outlet 2 along the front-back direction of the water injection box. The front end of the water inlet trough 3 is open and directly communicates with the outlet 2. Through the above arrangement, under the guiding effect of the inclined bottom wall of the water inlet trough 3, the water in the water inlet trough 3 can accelerate towards the outlet 2 under the action of gravity, and the flow velocity increases due to its own gravity during the flow process, which further increases the water pressure at the outlet 2 and makes the waterfall shape formed by the water flow more stable.

[0069] In this embodiment of the invention, the bottom wall of the water inlet trough 3 is a curved surface that gradually descends from the left and right sides of the water injection box towards the center, so that the bottom wall of the water inlet trough 3 connected to the water injection box is a curved part with high left and right ends and low middle, so that the water flow velocity from different left and right positions of the water inlet trough 3 to the water outlet 2 is different, thereby achieving the effect of the water flowing out of the water outlet 2 of the water injection box diverging to both sides and forming a waterfall-like water outlet shape.

[0070] like Figures 1 to 3 As shown in the embodiment of the present invention, the drainage and pressurization structure further includes: a waterproof plate 4 and a baffle plate 5 arranged at intervals at the front end of the water injection box, the gap between the waterproof plate 4 and the baffle plate 5 forming a water outlet cavity 6; the bottom of the shell 1 corresponding to the lower side of the water outlet cavity 6 is hollowed out to form the water outlet 2 of the water injection box; a notch is opened in the middle of the baffle plate 5, the notch is opened opposite to the front opening of the water channel 3, and the water channel 3 is directly connected to the water outlet cavity 6 through the notch. The water outlet cavity 6, which is formed by the baffle plate 5, the waterproof plate 4, the left side wall 12 and the right side wall 13 of the water box, is set at the front end of the water injection box. The bottom wall 11 of the water injection box at the lower end of the water outlet cavity 6 is completely hollowed out to form the water outlet 2 of the water injection box, so that the water outlet 2 of the water injection box is set at an independent water outlet cavity 6. Under the premise of ensuring that all the water flow can be guided to the water outlet 2 for smooth discharge, it can also effectively prevent the water flow from overflowing from the front end of the injection box.

[0071] In particular, when a dispensing box that can be pulled out from the front is installed inside the water tank, the water flow from the water inlet can easily splash onto the front panel of the dispensing box. This can cause contamination when the user pulls out the dispensing box to add detergent or other additives, affecting the user experience. By installing a waterproof plate 4 and a baffle plate 5 at the front and rear ends of the water outlet 2 respectively, the water flow can be effectively blocked, thus preventing water from splashing onto the dispensing box above.

[0072] Meanwhile, in this embodiment of the invention, the lower ends of the waterproof plate 4 and the water baffle 5 at the bottom of the water injection box are both lower than the bottom wall 11 of the water injection box shell 1; preferably, the lower ends of the waterproof plate 4 and the water baffle 5 are both lower than the lowest point of the water inlet trough 3. At the same time, the upper ends of the water baffle 5 and the waterproof plate 4 are both higher than the bottom wall 11 of the water injection box shell 1; preferably, the upper ends of the water baffle 5 and the waterproof plate 4 are both higher than the top surface of the protrusion 7 on the bottom wall of the water injection box, so as to effectively block water from entering the water injection box.

[0073] Furthermore, in embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the open end of the water inlet trough 3 connected to the outlet 2 is spaced a certain distance from the left and right side walls 12 and 13 of the water injection box. A water baffle 5 is provided on the bottom wall 11 of the water injection box on the left and right sides of the open end of the water inlet trough 3. The two water baffles 5 are sealed to the left and right side walls 12 and 13 of the water injection box respectively, so as to effectively prevent the water in the water injection box from flowing from the non-water inlet trough 3 to the outlet 2, thereby improving the stability of the water shape of the water injection box.

[0074] In addition, since the left and right width of the open end of the water inlet trough 3 is smaller than the left and right width of the outlet 2, the water flow from the water inlet trough 3 to the outlet 2 can have a certain space for left and right divergence, thereby ensuring that the water flow at the outlet 2 will not be blocked by the left and right side walls 12 and 13 of the water injection box, and further ensuring the stability of the waterfall-shaped water flow structure.

[0075] like Figures 1 to 3 As shown in the embodiment of the invention, the waterproof plate 4 is a curved surface that gradually bends inward from both the left and right ends toward the center and into the water injection box; preferably, the width of the water outlet 2 is consistent in the front-to-back direction of the water injection box at all locations. Thus, the water flow at the water outlet, under the action of the aforementioned perforated structure, disperses to the left and right sides of the water outlet, thereby creating a waterfall-like water flow effect in the water injection box.

[0076] In this embodiment of the invention, the water baffle 5 and the waterproof plate 4 are both integrally formed with the housing 1 of the water injection box.

[0077] like Figures 1 to 3As shown in the embodiment of the present invention, the flow-inducing and pressurizing structure further includes: the bottom wall 11 of the water injection box shell 1 is provided with upwardly protruding protrusions 7 on the left and right sides, and the two protrusions 7 are spaced apart, forming a flow channel 8 for the water to flow in the water injection box. One end of the flow channel 8 is blocked by the rear side wall 14 of the water injection box, so that the part of the flow channel 8 near the blocked end forms a water collection part 10; the other end of the flow channel 8 is connected to the water inlet trough 3 to guide the water in the flow channel 8 to flow towards the water inlet trough 3. By providing the above-mentioned protrusions 7 at the bottom of the water injection box shell 1, a downwardly recessed flow channel structure is formed on the bottom wall 11 of the water injection box, so that the water inlet in the water injection box can flow to the water outlet 2 of the water injection box under the guidance of the flow channel 8, thereby ensuring the smooth flow of water in the water injection box.

[0078] Meanwhile, in this embodiment of the invention, in order to further improve the smoothness of water flow, the following settings are made:

[0079] like Figures 1 to 3 As shown, the protrusions 7 on the left and right sides are symmetrically arranged relative to the front and rear axes of the water injection box, so that the flow channel 8 formed by the gap between the two protrusions 7 extends along the front and rear direction of the water injection box axis. The front end of the flow channel 8 is connected to the rear end and the highest point of the water inlet trough 3, and the rear part of the flow channel 8 constitutes the water collection part 10 for the water to flow into the water injection box. In addition, the water flowing into the internal cavity of the water injection box flows in from the rear end of the water injection box, so that the water can flow directly to the water collection part 10, thereby ensuring that the water in the water injection box can flow smoothly along the flow channel and achieve the effect of the water inlet of the water injection box flowing along the flow channel 8 provided at the bottom of the shell 1 towards the outlet 2.

[0080] In this embodiment of the invention, the left and right width of the water collection part 10 is greater than the width of the widest part of the water inlet channel 3 in the left and right direction, so that the flow channel 8 can enter water from the large end and exit water from the small end, so as to realize the purpose of pressurizing the water in the water injection box through the flow channel 8 and further increasing the water pressure at the water outlet 2 of the water injection box.

[0081] In this embodiment of the invention, in order to further increase the water pressure at the water outlet 2 of the water injection box, the following settings are made:

[0082] like Figures 1 to 3 As shown, at least a portion of the flow channel 8 is a constricted section 9 whose radial width gradually narrows towards the water inlet trough 3. By providing a constricted section 9 that narrows along the water flow direction on the flow channel 8, the flow channel can pressurize the flowing water, effectively increasing the water pressure at the outlet 2 of the water injection box, thereby ensuring that a stable waterfall-like water pattern can be formed at the outlet 2 of the water injection box.

[0083] Preferably, in this embodiment of the invention, the left and right sidewalls of the constricted section 9 of the flow channel 8 are both inclined surfaces that gradually slope towards the center along the front-back direction of the water injection box, so that the constricted section 9 is composed of tapered flow channels symmetrically arranged along the axial direction of the water injection box.

[0084] like Figures 1 to 3 As shown, in this embodiment of the invention, at least a portion of the water inlet trough 3 is located within the front end of the flow channel 8, and the rear end and highest point of the water inlet trough 3 are located at the narrow opening of the flow channel constriction section 9. This allows all the water flowing out of the flow channel 8 to flow into the water inlet trough 3; furthermore, the water in the flow channel 8, pressurized by the constriction section 9, flows directly into the water inlet trough 3 to maximize the water pressure at the outlet 2 of the water injection box.

[0085] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A water inlet box structure for a washing machine, comprising: The water injection box has a hollow interior and a dispensing box that can be pulled outwards. The top of the water injection box has a water injection cavity, and the bottom of the water injection cavity has a water inlet for injecting water into the dispensing box. The water injection cavity is also provided with an overflow outlet that is directly connected to the hollow cavity of the water injection box. A curved and zigzag flow channel is formed inside the water injection chamber. One end of the flow channel is connected to the water inlet of the water injection chamber. The water inlet is located at the bend in the middle of the flow channel, and the overflow outlet is located in the flow channel downstream of the water inlet. The overflow outlet and the inlet are located at opposite ends of the flow channel; The bottom wall of the left part of the water injection cavity is a slope that gradually slopes downward from the second end to the first end; The bottom wall of the right part of the water injection cavity is set as an inclined surface that gradually slopes downward from the second end to the first end; The water inlet is located at the first end of the water inlet chamber, which is the end of the water inlet chamber facing the direction of pulling out the dispensing box; the overflow outlet is located at the second end of the water inlet chamber, which is the end of the water inlet chamber facing the direction of pushing in the dispensing box. The water filling chamber has a dividing rib extending along the push-pull direction of the dispensing box in the middle. The dividing rib divides the water filling chamber into left and right parts. The second ends of the left and right parts are separated by the dividing rib, and the first ends are connected. The second end of the left part of the water filling chamber is connected to the water inlet of the water filling chamber, and the overflow outlet is located at the second end of the right part of the water filling chamber. Multiple water inlets that run vertically through the chamber are arranged on the bottom wall of the chamber at the first end of the left part of the water filling chamber, and / or the first end of the right part, and / or the connection between the two.

2. The washing machine water inlet box structure according to claim 1, characterized in that, The water inlet and overflow outlet are located at opposite ends of the water inlet cavity along the direction of the dispensing box.

3. The washing machine water inlet box structure according to claim 1, characterized in that, The bottom wall of the right part of the water injection chamber has an opening that runs vertically through the water inlet.

4. The washing machine water inlet box structure according to claim 3, characterized in that, The water injection cavity has an upward-protruding water-retaining ring at the opening. The top of the water-retaining ring is lower than the top wall of the water injection cavity but higher than the water injection port. The opening and the hollow part of the water-retaining ring together form the overflow port.

5. A washing machine water inlet box structure according to any one of claims 1 to 4, characterized in that, The overflow outlets and the projections of the dispensing boxes in the horizontal plane are arranged in an interlaced manner.

6. The washing machine water inlet box structure according to claim 5, characterized in that, There is a gap between the push-in end of the dispensing box and the inner wall of the water injection box, and the overflow port of the water injection chamber is located above the gap space.

7. A washing machine water inlet box structure according to any one of claims 1 to 4, characterized in that, The dispensing box has a dispensing chamber with an open top for dispensing additives, and the water inlet of the water inlet is located above the open top of the dispensing chamber. The dispensing chamber is equipped with a siphon structure that connects the interior of the dispensing chamber with the bottom space of the water inlet box below the dispensing box. The projections of the water inlet and the siphon structure in the horizontal plane are staggered.

8. The washing machine water inlet box structure according to claim 7, characterized in that, The water inlet is located above the first end of the dispensing box, and the siphon structure is located at the second end of the dispensing box.

9. A washing machine water inlet box structure according to any one of claims 1 to 4, characterized in that, A water distribution plate is fastened to the bottom of the top wall of the water injection box, and the water distribution plate and the top wall of the water injection box together form a water injection cavity.

10. A washing machine water inlet box structure according to claim 9, characterized in that, The dispensing box has multiple dispensing chambers. The top of the water injection box has a water injection chamber that corresponds to each dispensing chamber. Each water injection chamber has a water inlet that is connected to the outside of the water injection box.

11. A washing machine, characterized in that, The washing machine water inlet box structure described in any one of claims 1 to 10 is installed.

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