A water injection box structure of a washing machine and a washing machine

Abstract

The present invention provides a water injection box structure for a washing machine and a washing machine. The water injection box structure includes: a water injection box with a hollow interior, a dosing box that can be pulled outwards and installed in the water injection box. The top of the water injection box is provided with a water injection cavity, the bottom of the water injection cavity is provided with a water injection port for injecting water into the dosing box, and the water injection box is provided with a water baffle that adjusts the opening degree of the water injection port according to the change of the water pressure in the water injection cavity. In the present invention, by arranging a movable water baffle at the water injection port and using the impact of the water pressure in the water injection cavity to adjust the position of the water baffle, the purpose of correspondingly adjusting the opening degree of the water injection port according to the change of the water pressure in the water injection cavity is achieved, and thus a remarkable technical progress of regulating and stabilizing the water flow into the water injection box is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing treatment equipment, and particularly relates to a water injection box structure for a washing machine to intake water, and also relates to a washing machine equipped with the above water injection box structure. Background Art

[0002] With the improvement of consumers' living quality, washing machines have become indispensable in people's lives. As an important component of a washing machine, the water injection box is generally made of plastic. A pull-out dosing box is installed in the water injection box, and additives such as washing powder, laundry detergent, disinfectant, fabric softener, etc. to be dosed are placed in the dosing box, so that the incoming water flow passing through the water injection box can wash the above additives into the washing machine barrel together, and then the laundry load placed in the inner barrel of the washing machine can be washed, soaked, etc.

[0003] The existing water injection box structure generally partitions an area at the top of the water injection box, and this area forms an independent water injection cavity. The washing machine incoming water flow is first introduced into the water injection cavity, buffered and split by the water injection cavity, and then flows into the dosing box through the water injection port of the water injection cavity.

[0004] However, due to the possible excessive or unstable water pressure of the washing machine water supply source, the water flow flowing into the water injection cavity may be too fast or fluctuate greatly, which may cause excessive pressure in the water injection cavity, the flow rate of the water flow flowing into the dosing box will fluctuate, and even cause problems such as water overflow and leakage of the water injection box.

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

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a water injection box structure for a washing machine to automatically adjust the incoming water pressure of the water injection box.

[0007] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is:

[0008] A water injection box structure for a washing machine, which includes: a water injection box with a hollow interior, a dosing box that can be pulled outwards and installed in the water injection box, a water injection cavity is provided at the top of the water injection box, a water injection port for injecting water into the dosing box is provided at the bottom of the water injection cavity, and a water baffle for adjusting the opening degree of the water injection port according to the change of the water pressure in the water injection cavity is provided on the water injection box.

[0009] Further, the water baffle includes a water blocking part that can be movably installed at the water injection port, and the water blocking part adjusts the opening degree of the water injection port by blocking or opening the water injection port during the movement process;

[0010] Preferably, an opening opposite to the water injection port is provided on the water blocking part, and the overlapping area between the opening and the water injection port is adjusted during the movement of the water baffle.

[0011] Further, the water baffle includes a rib disposed intersecting with the water flow direction in the water injection cavity;

[0012] Preferably, the rib is on the side of the water blocking part away from the water inlet;

[0013] Preferably, the rib extends vertically upward.

[0014] Further, an elastic structure is connected to the side of the rib away from the water inlet, and both ends of the elastic structure are respectively connected to the rib and the inner wall of the water injection cavity;

[0015] Preferably, the elastic structure is a telescopic rod that can be axially telescoped by an external force, and the telescopic direction of the telescopic rod is the same as the direction of the connection line between the water inlet and the water injection port of the water injection cavity.

[0016] Further, a diversion port communicating with the inside of the water injection box is also provided in the water injection cavity

[0017] Preferably, the cross-sectional area ratio of the diversion port to the water injection port is 4:6;

[0018] More preferably, the bottom wall of the water injection cavity from the water injection port to the diversion port is an inclined plane sloping upward, and the inclination angle of the inclined plane is greater than or equal to 0.5 degrees.

[0019] Further, the diversion port is located in the part of the water injection cavity downstream of the water injection port;

[0020] Preferably, the water injection cavity is divided into a first part and a second part extending in different directions. One end of the first part and one end of the second part are connected and a water injection port is provided at the connection. The other end of the first part is provided with a water inlet, and the other end of the second part is provided with a diversion port;

[0021] More preferably, the extending directions of the first part and the second part are perpendicular to each other; the bottom wall of the first part is lower than the bottom wall height of the second part.

[0022] Further, the extending direction of the rib provided on the water baffle is parallel to the extending direction of the second part of the water injection cavity.

[0023] Further, the water blocking part of the water baffle is correspondingly attached to the bottom wall of the water injection cavity, an opening the same as the water injection port is provided in the middle of the water blocking part, and at least half of the area of the water injection port can be covered by the part between the opening on the water blocking part and the side close to the water inlet.

[0024] Further, a placement cavity for placing additives is provided in the placement box, the water injection port on the water injection box is communicated with the placement cavity, and the diversion port on the water injection box is directly communicated with the part between the placement box and the water injection box;

[0025] Preferably, a plurality of dispensing cavities are provided in the dispensing box, a water injection cavity corresponding to each dispensing cavity is provided at the top of the water injection box, and each water injection cavity is respectively provided with a water injection port communicating with the corresponding dispensing cavity and a water inlet communicating with the outside of the water injection box.

[0026] After the present invention adopts the above technical means, compared with the prior art, it has the following remarkable technical progress:

[0027] 1. In the present invention, by providing a movable water baffle at the water injection port and adjusting the position of the water baffle by the water pressure impact in the water injection cavity, the purpose of correspondingly adjusting the opening degree of the water injection port with the change of the water pressure in the water injection cavity is achieved, and thus a remarkable technical progress of regulating the water pressure and stabilizing the water flow of the water inlet of the water injection box is achieved.

[0028] 2. In the present invention, by opening a diversion port on the water injection cavity of the water injection box, the incoming water flow flowing through the dispensing cavity can be diverted from the diversion port, avoiding the occurrence of overflow water flow due to too rapid incoming water in the water injection box. Moreover, in the present invention, by providing a diversion port on the water injection cavity of the water injection box, the water injection cavity can be communicated with the outside through the diversion port, so that the air pressure in the water injection cavity is kept consistent with the inner cavity of the water injection box, achieving a remarkable technical progress of correspondingly adjusting the air pressure in the water injection cavity and stabilizing the water injection.

[0029] The present invention also introduces a washing machine, on which the above-mentioned washing machine water injection box structure is installed.

[0030] Meanwhile, the structure of the present invention is simple, the effect is remarkable, and it is suitable for popularization and use.

[0031] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts. In the accompanying drawings:

[0033] Figure 1 is an exploded structural schematic diagram of the water injection box from the first perspective in an embodiment of the present invention;

[0034] Figure 2 is an exploded structural schematic diagram of the water injection box from the second perspective in an embodiment of the present invention;

[0035] Figure 3 is a structural schematic diagram of the water injection box when the water baffle is in the position of completely opening the water injection port in an embodiment of the present invention;

[0036] Figure 4 It is a schematic structural diagram when the water baffle of the water injection box in the embodiment of the present invention is in a position where the water injection port is partially opened;

[0037] Figure 5 It is a schematic structural diagram of the water injection box structure in the embodiment of the present invention;

[0038] Figure 6 In the embodiment of the present invention Figure 2 is an enlarged schematic structural diagram of part A.

[0039] Description of main components in the figure: 100, water injection box; 200, feeding box; 1, housing; 2, upper cover; 3, water injection cavity; 4, water injection port; 5, water inlet; 6, diversion port; 7, water baffle; 20, feeding cavity; 21, cover body; 31, first part; 32, second part; 71, water blocking part; 72, opening; 73, blocking rib; 74, elastic structure.

[0040] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0041] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying 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.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0044] Such as Figures 1 to 6As shown in the figure, in the embodiment of the present invention, a water injection box structure of a washing machine and a washing machine are introduced. The water injection box structure includes a water injection box 100 fixedly installed on the washing machine. The incoming water flow from the washing machine water inlet pipe flows into the water injection box 100, and the water flowing through the water injection box 100 is injected into the barrel of the washing machine through the water outlet, so as to wet and wash the load placed in the barrel. At the same time, a pull-out dosing box 200 is installed on the water injection box 100. The dosing box 200 has a dosing cavity 20 for the dosing of additives such as washing powder, detergent, flavor enhancer, disinfectant, etc. At least a part of the washing machine incoming water flow flowing through the water injection box 100 flows through the dosing cavity 20, and the additives to be added in the dosing cavity 20 are flushed into the washing machine barrel along with the water flow to process the load in the barrel. As Figure 5 As shown in the figure, a plurality of dosing cavities 20 can be provided on the dosing box 200, and each dosing cavity is used for the dosing of different types of additives. A plurality of water injection cavities 3 are provided on the water injection box 100, and each water injection cavity 3 is opened opposite to each dosing cavity 20. Each water injection cavity 3 is respectively provided with a water injection port 4 communicating with the corresponding dosing cavity 20. Preferably, each water injection cavity 3 also respectively has a water inlet 5, and each water inlet 5 is controllably connected and disconnected with the washing machine water inlet pipe.

[0045] In the embodiment of the present invention, the washing machine is preferably a pulsator washing machine. The upper part of the shell of the pulsator washing machine is provided with a control panel base. An outer barrel with a barrel opening at the top is installed inside the shell. An inner barrel that can be driven to rotate by a motor is installed inside the outer barrel. A pulsator that can rotate independently and can rotate together with the inner barrel can also be installed in the inner barrel. The water injection box 100 is installed on the control panel base of the pulsator washing machine. A clothing dosing port corresponding to the barrel opening is provided in the middle of the control panel base. The front end of the water injection box 100 is correspondingly communicated with the clothing dosing port. The water outlet of the water injection box 100 faces downward, so that the water flow flowing out of the water outlet of the water injection box 100 can be directly sprayed into the inner barrel through the barrel opening of the inner barrel, thereby realizing the purpose of the washing machine to fill water into the barrel through the water injection box 100.

[0046] As Figures 1 to 4 As shown in the figure, in the embodiment of the present invention, the water injection box 100 includes a housing 1. The inside of the housing 1 is hollow to form a chamber for the washing machine incoming water flow to flow through. The bottom of the housing 1 is provided with a water outlet, and the washing machine incoming water flow flowing into the housing 1 flows out through the water outlet and flows into the washing machine barrel.

[0047] In the embodiment of the present invention, the housing 1 of the water injection box can be a housing structure with an opening only at the front end, so that the opening can allow the dosing box 200 to be inserted into the water injection box 100 from front to back or pulled out of the water injection box 100 from back to front.

[0048] As Figures 1 to 5As shown, in the embodiment of the present invention, the top of the water injection box 100 of the washing machine is composed of an upper cover 2. An injection cavity 3 is provided inside the upper cover 2. An inlet 5 is provided on the injection cavity 3, and the inlet 5 is connected to the washing machine water inlet pipe to introduce the washing machine inlet water flow into the injection cavity 3. Generally, the inlet 5 of the injection cavity 3 is arranged on one side of the water injection box 100; the inlet 5 includes a joint exposed on one side of the water injection box 100, and the joint is connected to the inside of the injection cavity 3 through a waterway integrally arranged on the housing 1 and / or the upper cover 2 of the water injection box 100. At the same time, a water injection port 4 is provided at the bottom of the injection cavity 3 and opens downward. The water injection port 4 is connected to a placement cavity 20 provided on the placement box 200, so that the water injection port 4 can flow the inlet water flow introduced into the injection cavity 3 into the placement cavity 20 of the placement box 200, and use the inlet water flow to wash the additives in the placement cavity 20 to achieve the purpose of adding the additives together with the inlet water flow.

[0049] As Figure 1 and Figure 2 shown, in the embodiment of the present invention, the injection cavity 3 is on the upper cover 2 above the placement box 200, so that when the placement box 200 is pulled and displaced, it does not interfere with the injection cavity 3, and at the same time, the water flow flowing out of the injection cavity 3 from the water injection port 4 can directly flow into the placement cavity 20 provided on the placement box 200 under the action of gravity. In the embodiment of the present invention, a downwardly concave groove-shaped structure is provided on the upper cover 2 of the placement box 200, and a cover body 21 is buckled on the open top of the groove-shaped structure, so that the upper cover 2 and the cover body 21 jointly enclose the injection cavity 3.

[0050] As Figures 1 to 4 shown, in the embodiment of the present invention, a water injection port 4 for injecting water into the placement box 200 is provided at the bottom of the injection cavity 3; a diversion port 6 that is directly connected to the hollow cavity of the water injection box 100 without passing through the placement box 200 is also provided in the injection cavity 3.

[0051] In the present invention, by providing a diversion port 6 on the injection cavity 3, the inlet water flow flowing through the placement cavity can be diverted from the diversion port 6; furthermore, by providing the diversion port 6, the injection cavity 3 can be connected to the outside through the diversion port 6, so that the air pressure in the injection cavity 3 is kept consistent with the inner cavity of the water injection box 100 to achieve the purpose of correspondingly adjusting the air pressure in the injection cavity 3; at the same time, by providing a special diversion port 6 on the injection cavity 3, the overflow water flow can be diverted to avoid the occurrence of the situation where the water flow overflows from the top of the water injection box 100 to the periphery when the water inlet flow rate of the water injection box 100 is too fast, thereby preventing the occurrence of the situation of water mixing between different cavities.

[0052] As Figures 1 to 4 and Figure 6As shown in the figure, in the embodiment of the present invention, a water baffle 7 for adjusting the opening degree of the water injection port 4 according to the change of the water pressure in the water injection cavity 3 is provided on the water injection box 100. In the present invention, by arranging a movable water baffle 7 at the water injection port 4 and using the impact of the water pressure in the water injection cavity 3 to adjust the position of the water baffle 7, the purpose of correspondingly adjusting the opening degree of the water injection port 4 according to the change of the water pressure in the water injection cavity 3 is realized, and thus a remarkable technical progress of regulating the water pressure and stabilizing the flow of the incoming water flow of the water injection box 100 is achieved.

[0053] In the embodiment of the present invention, the water baffle 7 includes a water blocking part 71 movably installed at the water injection port 4. An opening 72 opposite to the water injection port 4 is provided on the water blocking part 71. During the movement of the water blocking part 71, the water injection port 4 is blocked or opened, thereby realizing the adjustment of the opening degree of the water injection port 4.

[0054] As Figure 3 shown, when there is no water flow in the water injection cavity 3 or the water pressure is relatively small, the water baffle 7 is in an initial state. The opening 72 on the water baffle 7 completely overlaps with the water injection port 4, and the water injection port 4 is not blocked by the water baffle 7. At this time, the opening degree of the water injection port 4 is the largest;

[0055] As Figure 4 shown, when the water pressure in the water injection cavity 3 is relatively large, the water baffle 7 is impacted by the flowing water in the water injection cavity 3 and moves toward the side of the water inlet 5 away from the water injection cavity 3, so that the opening 72 on the water baffle 7 only partially overlaps with the water injection port 4, and a part of the water injection port 4 is blocked by the water baffle 7. At this time, the opening degree of the water injection port 4 becomes smaller.

[0056] Through the above settings, when the water pressure in the water injection cavity 3 changes, the water baffle 7 moves, so that the opening degree of the water injection port 3 can automatically increase or decrease accordingly, and the use effect of automatically stabilizing and regulating the water injection flow rate of the water injection box structure can be achieved.

[0057] As Figures 1 to 4 and Figure 6 shown, in the embodiment of the present invention, the water blocking part 71 is a flat plate structure provided on the bottom wall of the water injection cavity 3. An opening 72 having the same shape and size as the water injection port 4 is provided in the middle of the water blocking part 71. The outer peripheral part of the water blocking part 71 is a solid that can correspondingly block the water injection port 4. The water blocking part 71 is movably installed in the water injection cavity 3 along the direction parallel to the bottom wall of the water injection cavity 3. During the movement of the water blocking part 71, the area of the overlapping region between the opening 72 and the water injection port 4 changes accordingly, so as to achieve the purpose of correspondingly adjusting the opening degree of the water injection port 4.

[0058] In the embodiment of the present invention, the water injection port 4 is a rectangular opening with a width of 2L in the left - right direction of the water injection box 100, and the opening on the water blocking part 71 is also a rectangular opening of the same shape. At the same time, the water blocking plate 71 can only move relatively in the left - right direction of the water injection box 100, so as to use the left and right sides of the opening 72 of the water blocking plate 71 to partially or completely block the water injection port 4, and further achieve the purpose of correspondingly adjusting the opening degree of the water injection port 4.

[0059] In the embodiment of the present invention, the water inlet 5 of the water injection cavity 3 is arranged on the left side of the water injection port 4. When the water blocking plate 7 is impacted by the water flow flowing from the water inlet 5 to the water injection port 4, the water blocking plate 7 will bear the impact force of the water flow and move to the right side of the water injection port 4, so that the left side of the water blocking plate 7 correspondingly blocks the water injection port 4. In the embodiment of the present invention, the water blocking part 71 of the water blocking plate 7 is a rectangular plate structure, and an opening 72 is provided in the middle of the rectangular water blocking part 71. The width of the left part of the opening 72 is not less than L, so as to achieve the automatic adjustment purpose that the opening degree of the water injection port 4 is smaller when the water inlet pressure is larger and the opening degree of the water injection port 4 is larger when the water inlet pressure is smaller, and further achieve the remarkable technical progress of stabilizing the water flow flowing into the water injection box 100.

[0060] In the embodiment of the present invention, the water blocking plate 7 includes a water blocking rib 73 arranged opposite to the water inlet 5 of the water injection cavity 4, so that the water blocking rib 73 can bear the impact of the water flow flowing from the water inlet to the water injection port 4 in the water injection cavity 3, and drive the water blocking plate 7 to move in the left - right direction by using the impact force of the water flow.

[0061] In the embodiment of the present invention, the water blocking rib 73 is located on the side of the water blocking part 71 far from the water inlet 5; that is, when the water inlet 5 of the water injection cavity 4 is arranged on the left side of the water blocking plate 7, a water blocking rib 73 extending vertically upward from bottom to top is arranged on the right side of the water blocking plate 7; preferably, the water blocking rib 73 extends vertically upward, and the upper end of the water blocking rib 73 is in limit contact with the top wall of the water injection cavity 3 to ensure that the water blocking rib 73 cannot move up and down.

[0062] At the same time, in the embodiment of the present invention, in order to further ensure that the water blocking plate 7 can only move in the left - right direction of the water injection box 100, the following settings can be made:

[0063] A limiting groove extending in the left - right direction and recessed downward is provided on the bottom wall of the water injection cavity 3. The water injection port 4 is arranged on the bottom wall of the limiting groove. The water blocking plate 7 is installed in the limiting groove. The width of the water blocking plate 7 in the front - back direction of the water injection cavity 3 is equal to the width of the limiting groove, so that the front and back sides of the water blocking plate 7 are respectively limited by the inner walls of the limiting groove, and further ensure that the water blocking plate 7 is guided by the limiting groove and can only move in the left - right direction of the water injection box 100 (not marked in the drawings).

[0064] Such as Figures 1 to 4As shown, in the embodiment of the present invention, an elastic structure 74 is connected to the side of the retaining rib 73 away from the water inlet 5. The two ends of the elastic structure 74 are respectively connected to the retaining rib 73 and the inner wall of the water injection cavity 3, so as to utilize the elastic structure 74 to provide an elastic acting force on the water retaining plate 7, driving the water retaining plate 7 to reset to the initial position where the opening 72 completely coincides with the water injection port 4. Furthermore, it is ensured that after the impact acting force of the incoming water flow in the water injection cavity 3 on the water retaining plate 7 is cancelled or reduced, the water retaining plate 7 can be reset to the position where the opening degree of the water injection port 4 is the largest or increased under the action of the elastic structure 74, thereby achieving the purpose of using the water retaining plate 7 to adjust its position corresponding to the incoming water pressure.

[0065] In the embodiment of the present invention, the elastic structure 74 can be any existing structure, but it is necessary to ensure that it can provide an elastic driving force for the water retaining plate 7 along the left-right direction of the water injection box 100. For example, the following settings are made:

[0066] In the embodiment of the present invention, the elastic structure 74 is a telescopic rod, and the telescopic direction of the telescopic rod is the same as the connection direction of the water inlet 5 and the water injection port 4; the telescopic rod includes a sleeve and a plug rod along the connection direction of the water inlet 5 and the water injection port 4. The fixed end of the sleeve is installed on the retaining rib of the water retaining plate 7, the fixed end of the plug rod is provided on the inner wall of the water injection cavity 3, and the suspended end of the plug rod is coaxially inserted into the suspended end of the sleeve. A coaxially arranged spring is provided inside the sleeve, and the two ends of the spring are respectively connected to the suspended end of the plug rod and the fixed end of the sleeve. Thus, an elastic acting force for adjusting the opening degree direction of the water injection port 4 is exerted on the water retaining plate 7 by the spring. (Not marked in the drawings)

[0067] As Figures 1 to 4 As shown, in the embodiment of the present invention, a diversion port 6 is further provided in the water injection cavity 3. The diversion port 6 is located in the part of the water injection cavity 3 downstream of the water injection port 4, so as to divert the incoming water in the water injection cavity 3 from the diversion port 6 when the opening degree of the water injection port 4 decreases and the water pressure at the water inlet 5 is too high, avoiding the occurrence of the situation that the water pressure in the water injection cavity 3 is too high and overflows outward from all around.

[0068] In the embodiment of the present invention, the cross-sectional area ratio of the diversion port 6 to the water injection port 4 is 4:6, so that the aperture of the diversion port 6 is smaller than that of the water injection port 4. While enabling the incoming water in the water injection cavity 3 to be diverted through the diversion port 6, the smaller-aperture water injection port 4 can also avoid the situation that the water pressure in the water injection cavity 3 is too low and most of the incoming water in the water injection cavity 3 flows out through the diversion port 6. In the embodiment of the present invention, the diversion port 6 can be one or multiple. When the diversion port 6 is multiple, the ratio of the sum of the cross-sectional areas of each diversion port 6 to the cross-sectional area of the water injection port 4 is 4:6.

[0069] Further preferably, in order to further avoid the situation that when the water inlet pressure is too small, the water entering the water injection chamber 3 is diverted from the diversion port 6 and the water pressure at the water injection port 4 cannot reach the set water pressure, the following settings are made: the bottom wall of the water injection chamber 3 from the water injection port 4 to the diversion port 6 is an upwardly inclined plane, and the inclination angle of the inclined plane is greater than or equal to 0.5 degrees, so as to use a relatively high setting of the diversion port 6 to prevent the water entering the water injection chamber 3 from flowing towards the diversion port 6, thereby guiding the water flow in the water injection chamber 3 to converge at the water injection port 4 and increasing the water pressure at the water injection port 4.

[0070] As Figures 1 to 4 shown, in the embodiment of the present invention, the water injection chamber 3 is divided into a first part 31 and a second part 32 extending in different directions. One end of the first part 31 is connected to one end of the second part 32, and a water injection port 4 is provided at the connection. The other end of the first part 31 is provided with a water inlet 5, and the other end of the second part 32 is provided with a diversion port 6.

[0071] Preferably, in the embodiment of the present invention, the extending directions of the first part 31 and the second part 32 are perpendicular to each other. The first part 31 extends along the left-right direction of the water injection box 100, and the second part 32 extends along the front-back direction of the water injection box 100. The left end of the first part 31 is provided on the left side of the water injection box 100 and is connected to the water inlet 5, and the rear end of the second part 32 is provided on the rear side of the water injection box 100 and is provided with the diversion port 6.

[0072] Preferably, in the embodiment of the present invention, the bottom wall of the first part 31 of the water injection chamber 3 is lower than the bottom wall height of the second part 32, and the height of the water injection port 4 is lower than the height of other parts in the water injection chamber 3, so as to guide the water flow in the water injection chamber 3 to converge into the first part 31 as much as possible and ensure that the water entering the water injection chamber 3 can flow out from the water injection port 4.

[0073] In the embodiment of the present invention, the extending direction of the retaining rib 72 provided on the water retaining plate 7 is parallel to the extending direction of the second part 32 of the water injection chamber 3, so that part of the water flow blocked by the retaining rib 73 of the water retaining plate 72 is diverted into the second part 32 and diverted from the diversion port 6, thereby achieving the effect of correspondingly adjusting the water pressure in the water injection chamber 3.

[0074] The above are only the preferred embodiments of the present invention, and do not constitute any form of limitation to the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to the above-mentioned technical content to form equivalent embodiments with equivalent changes. The implementation schemes in the above embodiments can be further combined or replaced, but as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A water injection box structure of a washing machine, comprising: An internally hollow water injection box, a delivery box that can be pulled outwards and installed in the water injection box. The top of the water injection box is provided with a water injection cavity, and the bottom of the water injection cavity is provided with a water injection port for injecting water into the delivery box. It is characterized in that: the water injection box is provided with a water baffle that adjusts the opening degree of the water injection port according to the change of water pressure in the water injection cavity; The water injection cavity is divided into a first part and a second part extending in different directions. One end of the first part is connected to one end of the second part, and a water injection port is provided at the connection. The other end of the first part is provided with a water inlet, and the other end of the second part is provided with a diversion port; The said water baffle includes a water blocking part and a water blocking rib; the water blocking part is movably installed at the water injection port. During the movement of the water blocking part, it blocks or opens the water injection port for adjusting the opening degree of the water injection port; the water blocking rib is arranged opposite to the water inlet of the water injection cavity, and the extending direction of the water blocking rib provided on the water baffle is parallel to the extending direction of the second part of the water injection cavity; an elastic structure is connected to the side of the water blocking rib away from the water inlet, and both ends of the elastic structure are respectively connected to the water blocking rib and the inner wall of the water injection cavity.

2. The structure of a water injection box of a washing machine according to claim 1, characterized in that, The water blocking part is provided with an opening opposite to the water injection port, and during the movement of the water baffle, the overlapping area between the opening and the water injection port is adjusted.

3. The structure of a water injection box for a washing machine according to claim 1, characterized in that, The said water baffle includes a water blocking rib arranged intersecting with the water flow direction in the water injection cavity.

4. The structure of a water injection box of a washing machine according to claim 3, characterized in that, The water blocking rib is located on the side of the water blocking part away from the water inlet of the water injection cavity.

5. The structure of a water injection box of a washing machine according to claim 3, characterized in that The water blocking rib extends vertically from bottom to top.

6. The structure of a water injection box of a washing machine according to claim 1, characterized in that, The elastic structure is a telescopic rod that can be axially telescoped by an external force, and the telescopic direction of the telescopic rod is the same as the connection direction of the water inlet and the water injection port of the water injection cavity.

7. A water injection box structure of a washing machine according to any one of claims 1 to 6, characterized in that, A diversion port communicating with the inside of the water injection box is also provided in the water injection cavity; The cross-sectional area ratio of the diversion port to the water injection port is 4:6; The bottom wall of the water injection cavity from the water injection port to the diversion port is an upwardly inclined plane, and the inclination angle of the inclined plane is greater than or equal to 0.5 degrees.

8. A water injection box structure of a washing machine according to claim 7, characterized in that, The diversion port is located in the part of the water injection cavity downstream of the water injection port.

9. A water injection box structure of a washing machine according to any one of claims 1 to 6, characterized in that, The water blocking part of the water baffle is correspondingly attached to the bottom wall of the water injection cavity. An opening the same as the water injection port is provided in the middle of the water blocking part, and at least half of the area of the water injection port can be covered by the part between the opening on the water blocking part and the side close to the water inlet.

10. A water injection box structure of a washing machine according to any one of claims 1 to 6, characterized in that, A delivery cavity for adding additives is provided in the delivery box. The water injection port on the water injection box is communicated with the delivery cavity, and the diversion port on the water injection box is directly communicated with the part between the delivery box and the water injection box.

11. A water injection box structure of a washing machine according to claim 10, characterized in that, A plurality of delivery cavities are provided in the delivery box. The top of the water injection box is provided with water injection cavities corresponding to each delivery cavity one by one. Each water injection cavity is respectively provided with a water injection port communicating with the corresponding delivery cavity and a water inlet communicating with the outside of the water injection box.

12. A washing machine, characterized in that: Install the washing machine water injection box structure according to any one of claims 1 to 11 above.

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