A detergent premix structure and a washing apparatus

Abstract

The present application provides a detergent premixing structure, which comprises a detergent box, a water inlet main pipe, a water inlet pipe for injecting water into a washing machine inner drum, a mixing tee and a mixing pipe, one inlet of the mixing tee is communicated with an outlet of the detergent box through a detergent pipe, the water inlet main pipe is communicated with another inlet of the mixing tee through the mixing pipe, an outlet of the mixing tee is communicated with the water inlet pipe, and a water outlet speed of the mixing pipe is greater than a liquid outlet speed of the detergent pipe, so that a negative pressure is formed in the mixing tee and / or at the outlet of the mixing tee, the detergent in the detergent box is driven to enter the mixing tee quickly, and the premixing of the detergent is completed in the mixing tee and / or at the outlet. The present application further provides a washing device provided with the detergent premixing structure. The detergent premixing structure and the washing device provided by the present application can realize the sufficient premixing of the detergent before entering the inner drum, and improve the use efficiency of the detergent.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of washing equipment, in particular, relates to a washing agent premixing structure and a washing equipment. BACKGROUND

[0002] In the existing washing machine products, in order to facilitate the use of users, a washing agent box and a washing agent storage box are usually provided, the stored washing agent is pumped into the washing agent box by a pump, water is supplied to the washing agent box by a water inlet valve, and the washing agent is flushed into the inner drum of the washing machine. For washing powder, the washing powder flushing is through the water inlet valve to enter water, the water enters the washing powder box through the waterway, and the washing powder is flushed into the drum, and the washing powder is carried into the drum by the flow of water, so as to achieve the purpose of adding washing powder. However, in the conventional technology, under the action of the surface tension of the washing powder, the washing powder is only flushed into the drum and cannot be well dissolved with water, and when entering the inner drum, some washing powder is even in the form of block particles. After starting the washing program, the inner drum rotates at a relatively slow speed in a certain time, and the washing powder cannot quickly diffuse to the entire inner drum, resulting in low utilization rate of the washing powder and affecting the washing effect. In severe cases, the block particles can block the waterway.

[0003] For other types of washing agents, the above technical problem that the washing agent is only flushed into the inner drum and cannot be premixed can also exist. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a washing agent premixing structure and further provide a washing equipment provided with the premixing structure.

[0005] To achieve the above-mentioned purpose, the present application first provides a washing agent premixing structure, which adopts the technical scheme of:

[0006] A washing agent premixing structure, comprising a washing agent box, a water inlet main pipe and a water inlet pipe for injecting water into the inner drum of a washing machine, further comprising a liquid mixing tee joint and a liquid mixing pipe, one inlet of the liquid mixing tee joint is communicated with the outlet of the washing agent box through a washing agent pipe, the water inlet main pipe is communicated with the other inlet of the liquid mixing tee joint through the liquid mixing pipe, the outlet of the liquid mixing tee joint is communicated with the water inlet pipe, and the water outlet speed of the liquid mixing pipe is greater than the liquid outlet speed of the washing agent pipe, so that a negative pressure is formed in the liquid mixing tee joint and / or at the outlet of the liquid mixing tee joint, the washing agent mixed liquid in the washing agent box is quickly brought into the liquid mixing tee joint, and the premixing of the washing agent is completed in the liquid mixing tee joint and / or at the outlet.

[0007] Further, the liquid outlet end of the liquid mixing pipe is a tapered pipe, the small-diameter end of the liquid mixing pipe is inserted into the inside of the liquid mixing tee joint, and the terminal end is located between the center point and the outlet of the liquid mixing tee joint. Preferably, the terminal end of the small-diameter end of the liquid mixing pipe is located at the outlet of the liquid mixing tee joint.

[0008] Further, the end of the water inlet pipe is provided with a flared portion, the mixing pipe is inserted into or screwed with the flared portion, a V-shaped notch is arranged on the inner wall of the flared portion, and a sealing ring is arranged between the flared portion and the mixing pipe, and a V-shaped protrusion is arranged on the outer wall of the sealing ring.

[0009] Further, the water inlet pipe comprises a first pipe and a second pipe, the first pipe is communicated with the water source after being communicated with the water inlet, and the second pipe is communicated with the mixing tee through the mixing pipe.

[0010] Further, the length of the main body of the mixing tee is greater than the diameter of the detergent pipe.

[0011] Further, the outlet of the mixing tee comprises a tapered pipe section and a straight pipe section, the large-diameter end of the tapered pipe section is directed to the inside of the mixing tee, the small-diameter section is connected with the straight pipe section, and the straight pipe section is connected with the water inlet pipe.

[0012] Further, the straight pipe section is inserted into the water inlet pipe and is inserted into or screwed with the water inlet pipe, a V-shaped notch is arranged on the inner wall of the water inlet pipe, a sealing ring is arranged between the straight pipe section and the water inlet pipe, and a V-shaped protrusion is arranged on the outer wall of the sealing ring.

[0013] Further, the end of the mixing pipe is inserted into the mixing tee, the end of the mixing pipe is a tapered pipe, and a gap is left between the outer wall of the tapered pipe and the inner wall of the tapered pipe section for the detergent mixture to flow out under the action of negative pressure.

[0014] Further, the diameter of the main body of the mixing tee is greater than the diameter of the large-diameter end of the tapered pipe section.

[0015] The second application object of the present application is to provide a washing device adopting the following technical scheme.

[0016] A washing device comprises a detergent premixing structure as described above.

[0017] In summary, the detergent premixing structure and the washing device provided by the present application have the following beneficial effects compared with the prior art.

[0018] 1. The mixing pipe with a smaller diameter is used to increase the water inlet speed, so that negative pressure is formed in the mixing tee, the detergent in the detergent chamber is brought out quickly under the action of the negative pressure, and the block-shaped particles are dispersed under the action of the high-speed water flow, thereby avoiding the blockage of the water inlet pipe.

[0019] 2. The high-speed water flow is used to quickly mix the detergent with water, to improve the mixing speed of the detergent and water, to form a uniform mixed solution of the detergent and water in the inner cylinder, and to improve the utilization rate of the detergent;

[0020] 3. The end of the water inlet pipe is provided with a taper pipe and is directly connected to the window pad or balance ring, to improve the water outlet speed of the mixed solution, to directly spray the mixed solution on the clothes to be washed after the pre-mixing and fusion, to further improve the fusion of the detergent and the clothes to be washed, and to improve the washing effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are part of this application, serve to further understand the application, and the illustrative embodiments of the application and their descriptions are used to explain the application, but do not constitute an improper limitation on the application. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained from these drawings by those of ordinary skill in the art without creative labor. In the drawings:

[0022] Figure 1 The present application provides a washing agent pre-mixing structure schematic diagram;

[0023] Figure 2 The present application provides a washing agent pre-mixing structure schematic diagram of the washing agent box structure;

[0024] Figure 3 The present application provides a washing agent pre-mixing structure schematic diagram of the water inlet pipe structure;

[0025] Figure 4 : Figure 3 The I part is enlarged.

[0026] In the drawings: 10, washing agent box; 101, washing powder cavity; 102, softener cavity; 103, washing liquid cavity; 20, water inlet main pipe; 201, first main pipe; 202, second main pipe; 2021, flared; 2022, V-shaped cut; 2023, clamp; 30, water distribution plate; 301, first water blocking area; 3011, water blocking wall; 3012, water inlet groove; 3013, water inlet; 3014, baffle; 3015, water distribution hole; 3016, V-shaped water groove; 30161, outer water groove; 30162, inner water groove; 3017, water inlet hole; 302, second water blocking area; 303, third water blocking area; 40, mixed solution tee joint; 401, mounting seat; 402, taper pipe section; 403, straight pipe section; 4031, second limiting plate; 50, mixed solution pipe; 501, straight pipe; 502, tapered pipe; 503, first limiting plate; 60, washing agent pipe; 70, water inlet pipe; 80, sealing ring; 801, V-shaped protrusion; 90, mixing tank.

[0027] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but are merely to illustrate the concept of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below by combining the drawings in the embodiments of the present application, and the following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0029] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] The present application first provides a detergent premixing structure, which comprises a detergent box 10, a water inlet main pipe 20 and a water inlet pipe 70 for injecting water into the inner drum of a washing machine, and further comprises a mixing tee 40 and a mixing pipe 50, one inlet of the mixing tee 40 is communicated with the outlet of the detergent box 10 through a detergent pipe 60, the water inlet main pipe 20 is communicated with the other inlet of the mixing tee 40 through the mixing pipe 50, the outlet of the mixing tee 40 is communicated with the water inlet pipe 70, and the water outlet speed of the mixing pipe 50 is greater than the liquid outlet speed of the detergent pipe 60, so that a negative pressure is formed in the mixing tee 40 and / or at the outlet of the mixing tee 40, the detergent mixture in the detergent box 10 is driven to enter the mixing tee 40 rapidly, and the premixing of the detergent is completed in the mixing tee 40 and / or at the outlet thereof.

[0032] In the present embodiment, a specific structure of a detergent premixing structure and a detergent premixing process provided by the present application are introduced by taking a washing machine as an example, and the detergent can be any powder or liquid additive used in the washing process, such as washing powder, softener, washing liquid and the like. Figures 1 to 4As shown, the detergent pre-mixing structure includes a detergent box 10, which can be at least one of a washing powder box, a washing liquid box, and a softener box, any two combinations or also an integrated structure of the three boxes. Taking the integrated structure of the detergent box 10 as an example, the detergent box 10 is a box body structure, the top of which is provided with a water distribution tray 30, the top surface of the water distribution tray 30 is sealed by a top plate, and the inside of the box body is divided into a washing powder cavity 101, a softener cavity 102, and a washing liquid cavity 103 by two partition plates. The front end of the box body is provided with an opening corresponding to each cavity, and the washing powder box, the softener box, and the washing liquid box are inserted into the corresponding cavities in a pulling manner, and a limiting plate is arranged at the rear part of the cavity to limit the insertion position of the washing powder box, the softener box, and the washing liquid box, thereby improving the appearance effect of the detergent box 10. The box body such as the washing powder box can include a dosage box containing a one-time dosage and providing a detergent to the inner drum of the washing machine and a storage box storing multiple dosages, and the dosage box and the storage box can be integrally formed or separately arranged. The dosage box is fixed at the rear part of the corresponding cavity, and the storage box is arranged in the cavity in a pulling manner. The storage box and the dosage box are connected by a pipeline, and a one-time dosage of detergent is provided to the dosage box by a delivery pump. The box body such as the washing powder box can only include a dosage box providing a one-time dosage, and the corresponding detergent is added before each washing and before each use. Taking the washing powder box as a one-time dosage box as an example, the bottom of the washing powder box is an inclined wall, and the thickness of the front end (insertion end) of the washing powder box is smaller than the thickness of the rear end (located at the cavity opening) for easy pushing and pulling, or the bottom of the washing powder box is a conical surface or a funnel shape, and the lowest point is provided with a liquid outlet for the washing powder mixture to facilitate complete discharge of the preliminary mixed mixture without remaining. The structures of the softener box and the washing liquid box are similar and will not be described herein. The main structure of the detergent box 10 and the specific structures of the washing powder box, the softener box, and the washing liquid box are not the focus of the present application, and any existing conventional technology or future technology that may appear can be applied to the present application without limitation.

[0033] The water distribution tray 30 is sealingly connected to the top of the detergent box 10. The water distribution tray 30 is a box structure with an open top surface and is sealingly connected to the top plate. The water distribution tray 30, the top plate and the detergent box 10 are sealingly connected and fixed. On the top surface of the bottom wall of the water distribution tray 30, corresponding to the top of each chamber of the detergent box 10, a first water blocking area 301, a second water blocking area 302 and a third water blocking area 303 are arranged. The first water blocking area 301 is located directly above the washing powder box, the second water blocking area 302 is located directly above the softener box, and the third water blocking area 303 is located directly above the laundry detergent box. The water inlet area of the detergent box 10 is located at the rear side, near the position of the first water blocking area 301. Taking the first water blocking area 301 as an example, the first water blocking area 301 includes a water blocking wall 3011. The top of the water blocking wall 3011 is sealingly connected to the top plate. The water blocking wall 3011 is bent multiple times to form a water distribution space with the same or similar shape as the washing powder box. An inlet 3013 is arranged at the position of the water inlet area facing the rear side. The inlet 3013 is in communication with an inlet channel 3012. The side wall of the inlet channel 3012 is sealingly connected to the top plate and the water blocking wall 3011 to form a water channel. Further, the outlet end of the inlet channel 3012 is inserted into the water distribution space. A baffle 3014 is arranged on the bottom wall of the water distribution space. The baffle 3014 is spaced apart from the inlet of the inlet channel 3012, for example, it can be arranged at the middle upper part of the water distribution space (the position facing the inlet 3013 is upper), and the two sides are spaced apart from the corresponding side of the water blocking wall 3011. When the water flowing out of the inlet channel 3012 flows through the baffle 3014, part of the water is backflushed into the space between the inlet channel 3012 and the water blocking wall 3011. Another part of the water is diverted under the action of the baffle 3014 and flows to the rear side of the baffle 3014 through the gap between the baffle 3014 and the two ends of the water blocking wall 3011. By arranging the baffle 3014, the water entering the water distribution space forms a turbulent flow under the action of water pressure and uniformly fills the entire water distribution space. A plurality of water distribution holes 3015 are uniformly distributed on the bottom wall of the water distribution space. The water distribution holes 3015 uniformly distribute water to the washing powder box at the bottom of the water distribution tray 30, so that the washing powder in the washing powder box is uniformly wetted to achieve preliminary premixing. Arranging the baffle 3014 at the inlet of the inlet channel 3012 can increase the water pressure entering the water distribution space and improve the water pressure for water distribution into the washing powder box. The high-speed water flow impacts the washing powder to improve the preliminary premixing effect of the washing powder. The inlet channel 3012 includes a straight section and an arc section. The straight section is inserted into the first water blocking area 301, and the arc section is located opposite to the water inlet area of the water blocking area. Further, in the case that the water distribution tray 30, the detergent box 10 and the top plate on the top of the water distribution tray 30 are effectively sealed, the water distribution holes 3015 can be arranged as tapered holes. The small diameter end of the tapered hole faces the detergent box 10, which can further increase the water pressure for water distribution into the washing powder box. The small and high-speed water flow impacts the washing powder to improve the preliminary premixing effect.

[0034] The structures of the three water retaining areas are similar, and the difference is that the shapes are different. Further, the end of the water inlet groove 3012 corresponding to the second water retaining area 302 is connected with the water inlet 3013 of the second water retaining area 302, and is not inserted into the second water retaining area 302. Considering that the amount of softener is small, the softener in the softener box may be gathered at the front end of the softener box, therefore, the number of water distribution holes 3015 in the space between the rear side of the baffle 3014 and the water inlet 3013 is less than the number of water distribution holes 3015 between the front side of the baffle 3014 and the water retaining wall 3011. The water inlet 3013 of the third water retaining area 303 is arranged on the side facing the first water retaining area 301, the water inlet groove 3012 is an arc-shaped groove, which reduces the energy loss of water in the flowing process, and the front end is inserted into the third water retaining area 303, thereby shortening the distance between the slot of the water inlet groove 3012 and the baffle 3014. The width of the third water retaining area 303 is less than the width of the first water retaining area 301, and the baffle 3014 is V-shaped, and the opening end faces the water inlet 3013.

[0035] The water inlet area includes a first main pipe 201 in communication with the water inlet main pipe 20, the end of the first main pipe 201 is divided into two branch pipes, and an electromagnetic valve for controlling the water flow is arranged on each branch pipe. Two water inlet holes 3017 are arranged on the rear side wall of the water distribution disc 30, the water inlet ends of the two water grooves are respectively in communication with a corresponding water inlet hole 3017, and the water outlet ends are combined to form a V-shaped water groove 3016. The water outlet end of the V-shaped water groove 3016 faces the water inlet end of the water inlet groove 3012 corresponding to the second water retaining area 302, as shown in Figure 4 , as shown in Figure 4 , the water outlet end of the outer water groove 30161 of the V-shaped water groove 3016 faces the water inlet end of the water inlet groove 3012 of the third water retaining area 303, and the water outlet end of the inner water groove 30162 faces the water inlet end of the water inlet groove 3012 of the first water retaining area 301. When the electromagnetic valve on the branch pipe corresponding to the inner water groove 30162 is turned on, the inner water groove 30162 is watered, and under the action of water pressure, the water flows to the first water retaining area 301. When the electromagnetic valve on the branch pipe corresponding to the outer water groove 30161 is turned on, the outer water groove 30161 is watered, and under the action of water pressure, the water flows to the third water retaining area 303. When both electromagnetic valves are turned on, water flows in both sides of the V-shaped water groove 3016, and under the action of water pressure, the water flows to the second water retaining area 302. Through the two electromagnetic valves, the water inlet of the three water retaining areas is realized.

[0036] When the detergent box 10 only includes one of the washing powder box, the softener box or the washing liquid box, only one water retaining area is arranged on the water distribution tray 30. For example, when the detergent box 10 only includes the washing powder box, the end of the first main pipe 201 is not branched, and is sealingly connected with the water inlet groove 3012 of the first water retaining area 301 after being obliquely upwardly passing through the rear sidewall of the washing powder cavity 101. Specifically, the end face of the end of the first main pipe 201 is an inclined face, the highest end is sealingly connected with the top plate, the lowest end is sealingly connected with the bottom wall of the water distribution tray 30, and the other parts of the end face are sealingly connected with the water inlet 3013 of the water inlet groove 3012. The water enters the first water retaining area 301 through the first main pipe 201 and the water inlet groove 3012, and is then distributed to the washing powder box.

[0037] Further, to ensure that the washing powder mixed solution after preliminary mixing forms blocky particles to block the detergent pipe 60 and cannot normally flow, in the embodiment, an overflow structure is further arranged. As shown in the figure, the overflow partition plate is arranged between the sidewall of the washing powder box and the cavity sidewall of the washing powder cavity 101, the height of the washing powder box is less than the height of the overflow partition plate, and the height of the overflow partition plate is less than the height of the cavity sidewall of the washing powder cavity 101. The overflow partition plate is spaced apart from the washing powder box and the washing powder cavity 101 to form two internal and external overflow channels, and the overflow hole is arranged at the bottom of the washing powder cavity 101. The overflow hole is arranged at the bottom of each of the two overflow channels and is in communication with the water inlet pipe 70 through the overflow pipe. To save cost and reduce the number of pipes and make the pipes inside the washing machine neat, in the embodiment, only one overflow hole is arranged, the overflow partition plate is located on the diameter of the overflow hole, and each overflow channel uses half of the overflow hole. The overflow hole is in communication with the water inlet pipe 70 through the overflow pipe, that is, one overflow hole is used to simultaneously realize the overflow and drainage of the two overflow channels. When the washing powder box is blocked or the water inlet speed of the first main pipe 201 is greater than the liquid drainage speed of the detergent pipe 60, the water solution in the washing powder box exceeds the limit of the box body and overflows from the washing powder box into the first overflow channel between the overflow partition plate and the washing powder box, and then enters the water inlet pipe 70 through half of the overflow hole and the overflow pipe and is injected into the inner drum. When the first overflow channel cannot completely drain, the overflow liquid enters the second overflow channel between the overflow partition plate and the washing powder cavity 101, and then enters the inner drum through the overflow hole, the overflow pipe and the water inlet pipe 70. By arranging the two overflow channels, the overflow of the overflow liquid is effectively prevented.

[0038] The detergent premixing structure provided by the present application further comprises a mixing tee 40, as shown in the figure. One water inlet 3013 of the mixing tee 40 is connected with the water outlet of the detergent box through the detergent pipe 60, and the other water inlet 3013 is connected with the second main pipe 202. The outlet is connected with the water inlet pipe 70, and the outlet of the water inlet pipe 70 is communicated with the inner drum of the washing machine. Specifically, the outlet of the water inlet pipe 70 is arranged at the window pad of the drum washing machine, or the outlet of the water inlet pipe 70 is arranged at the balance ring of the pulsator washing machine. The second main pipe 202 is connected with the water source, and provides washing water to the washing machine through the mixing tee 40 and the water inlet pipe 70. The outlet of the second main pipe 202 is communicated with the inlet of the mixing tee 40, so that the detergent mixture in the mixing tee 40 is flushed into the water inlet pipe 70 and further into the inner drum. The second main pipe 202 forms turbulent flow in the mixing tee 40 during the water injection process, realizes the second step of premixing of the detergent, and flows rapidly to the water inlet pipe 70 under the action of the water pressure in the second main pipe 202 and the negative pressure formed. During the flow process, the third step of premixing is realized, and through the three steps of premixing, the complete premixing of the detergent before entering the inner drum is realized. In order to improve the water pressure in the second main pipe 202, an electromagnetic valve with a pressurizing function can be arranged on the second main pipe 202 to improve the water inlet speed and water pressure.

[0039] In the embodiment, the inlet and the outlet of the mixing tee 40 are opposite to each other at the connection position of the mixing tee 40 and the second main pipe 202, and the main body diameter of the mixing tee 40 is greater than the diameters of the inlet and the outlet. By controlling the water inlet speed of the second main pipe 202 to be greater than the liquid outlet speed of the detergent pipe 60, the high-speed water flow is rapidly flushed into the mixing tee 40 and enters the water inlet pipe 70 from the outlet of the mixing tee 40. Due to the fact that the water outlet speed is greater than the liquid outlet speed of the detergent pipe 60, the negative pressure is formed in the mixing tee 40, and the detergent mixture is sucked out of the detergent box and the detergent pipe 60 under the action of the negative pressure, so as to be flushed into the inner drum.

[0040] Preferably, the second main pipe 202 is connected with the inlet of the mixing tee 40 through the mixing pipe 50. As shown in the figure, the end of the second main pipe 202 is provided with a flared end 2021. The mixing pipe 50 includes a straight pipe 501 which is connected with the flared end 2021 through screwing or insertion. The inner wall of the flared end 2021 is provided with a V-shaped cut 2022. The V-shaped cut 2022 is close to the water inlet end of the second main pipe 202. The included angle of the V-shaped cut 2022 is obtuse. The cut is a partial V-shaped cut 2022. The end of the inner side (close to the water inlet end of the second main pipe 202) of the bevel is located at the port of the water inlet end of the flared end 2021. The end of the outer side (close to the side of the mixing tee) of the bevel is located at the center point of the flared end 2021 or between the center point of the flared end 2021 and the outer port of the flared end 2021. The length of the inner side bevel is greater than the length of the outer side bevel. A sealing ring 80 is arranged in the flared end 2021. The outer wall of the sealing ring 80 is provided with a V-shaped protrusion 801 close to the V-shaped cut 2022. The sealing ring 80 is inserted into the flared end 2021. The V-shaped protrusion 801 of the sealing ring 80 is embedded into the V-shaped cut 2022. The sealing ring 80 prevents the straight pipe 501 of the mixing pipe 50 from being taken out or accumulated in the flared end 2021 during the process of being assembled with the flared end 2021 through insertion or screwing, so as to avoid problems such as incomplete assembly of the mixing pipe 50, sealing failure and the like. After the mixing pipe 50 is assembled in place, the inner wall of the mixing pipe 50 is flush with the inner wall of the second main pipe 202. The end of the mixing pipe 50 abuts against the bottom wall of the flared end 2021. The V-shaped cut 2022, especially the partial V-shaped cut 2022 in the application, can effectively prevent the water inlet of the second main pipe 202 from overflowing along the gap between the end of the mixing pipe 50 and the flared end 2021 and the sealing ring 80. A clamp 2023 is arranged on the outer side of the flared end 2021, so as to further tightly connect the flared end 2021 and the mixing pipe 50 together, and prevent the mixing pipe 50 from being separated from the flared end 2021 under the condition of excessive water pressure.

[0041] The water outlet end of the mixing pipe 50 is communicated with the water inlet of the mixing tee 40. The main body diameter of the mixing tee 40 is greater than the diameter of the water outlet end of the mixing pipe 50. The water outlet end of the mixing pipe 50 is inserted into the mixing tee 40. Further, the port of the water outlet end is located at a position between the center point and the outlet of the mixing tee 40. The high-speed water flow in the mixing pipe 50 is discharged into the water inlet pipe 70 through the outlet, so that a negative pressure is formed in the mixing tee 40. The washing powder mixture in the washing powder box and the detergent pipe 60 is forced to flow out quickly. Under the impact of the high-speed water flow discharged from the mixing pipe 50, the washing powder is further mixed with water to form a washing powder solution. Preferably, the port of the water outlet end is flush with the end face at the outlet of the mixing tee 40. Only the washing powder mixture is in the mixing tee 40. The high-speed water flow of the mixing pipe 50 directly enters into the water inlet pipe 70. The negative pressure is formed in the mixing tee 40. The washing powder mixture in the mixing tee 40, the detergent pipe 60 and the washing powder box is quickly discharged into the water inlet pipe 70 through the mixing tee 40.

[0042] Preferably, the water outlet of the mixing pipe 50 is inserted into the mixing tee 40, and the mixing pipe 50 further comprises a tapered pipe 502 integrally formed with the straight pipe 501, the small-diameter end of the tapered pipe 502 is the water outlet and is inserted into the mixing tee 40, and the large-diameter end is integrally formed with the straight pipe 501, which is inserted into or screwed with the second main pipe 202 at the flared portion 2021. By providing the tapered pipe 502, the mixing pipe 50 has a water outlet speed greater than the liquid outlet speed of the detergent pipe 60, so that a negative pressure is formed at the outlet of the mixing tee 40 and / or in the mixing tee 40, so that the washing powder in the washing powder box and the washing powder mixture in the detergent pipe 60 are quickly brought out, and the mixture is further fully mixed by the action of gravity and the impact of the high-speed water flow.

[0043] A first limiting plate 503 is provided on the outer wall of the mixing pipe 50, which can be provided on the outer wall of the connection between the tapered pipe 502 and the straight pipe 501 or on the outer wall of the straight pipe 501, the height of the first limiting plate 503 is higher than the inlet diameter of the mixing tee 40, the first limiting plate 503 is located at the large-diameter end of the water outlet tapered pipe 502, the end of the side wall of the mixing tee 40 abuts the outer side of the first limiting plate 503 (same as the orientation of the V-shaped cutout 2022, towards the inside of the mixing tee 40), and a mounting seat 401 is provided at the top of the side wall of the mixing tee 40, which is generally L-shaped, the vertical arm is connected to the top of the side wall of the mixing tee 40, and the bottom surface of the horizontal wall abuts the top surface of the first limiting plate 503. A certain gap is left between the vertical arm and the end of the side wall of the mixing tee 40, which is filled with a sealing strip, and arc-shaped protrusions are provided at the abutting positions of the vertical arm and the horizontal arm and the first limiting plate 503, and the first limiting plate 503 is installed in interference fit with the mounting seat 401.

[0044] The outlet of the mixed liquid tee joint 40 is communicated with the water inlet pipe 70. In the embodiment, the outlet of the mixed liquid tee joint 40 comprises an integral conical pipe section 402 and a straight pipe section 403. The large diameter end of the conical pipe section 402 is directed towards the inside of the mixed liquid tee joint 40 and is integrally formed with the main body structure of the mixed liquid tee joint 40. The small diameter end of the conical pipe section 402 is connected with the straight pipe section 403. The straight pipe section 403 is inserted or screwed into the water inlet pipe 70 and is fixed. The diameter of the large diameter end of the conical pipe section 402 is smaller than the diameter of the main body of the mixed liquid tee joint 40, so that the side wall end of the mixed liquid tee joint 40 is bent towards the center point and is fixed with the conical pipe section 402. The diameter of the large diameter end of the conical pipe section 402 is larger than the diameter of the small diameter end of the mixed liquid pipe 50. When the small diameter end of the mixed liquid pipe 50 is located at the inlet port of the liquid outlet pipe, a gap is left between the outer wall of the mixed liquid pipe 50 and the inner wall of the inlet of the liquid outlet pipe. The high-speed water flow from the mixed liquid pipe 50 is injected into the inlet of the liquid outlet pipe, so that a negative pressure is formed in the mixed liquid tee joint 40 and the conical pipe section 402 and the straight pipe section 403 of the liquid outlet pipe. The laundry detergent mixed liquid in the mixed liquid tee joint 40 enters the water inlet pipe 70 through the gap. Similarly, when the small diameter end of the mixed liquid pipe 50 is inserted into the conical pipe section 402 of the liquid outlet pipe, a gap is left between the outer wall of the mixed liquid pipe 50 and the inner wall of the conical pipe section 402. The high-speed water flow from the mixed liquid pipe 50 is injected into the straight pipe section 403 from the conical pipe section 402. When the mixed liquid pipe 50 is inserted for a long distance, a negative pressure is formed in the mixed liquid pipe 50. When the mixed liquid pipe 50 is inserted for a short distance, a negative pressure is formed in the conical pipe section 402, the straight pipe section 403 and the mixed liquid tee joint 40. The laundry detergent mixed liquid in the mixed liquid tee joint 40 enters the water inlet pipe 70 through the gap. When the small diameter end of the mixed liquid pipe 50 is located at the center point of the mixed liquid tee joint 40 and the inlet port of the liquid outlet pipe, the high-speed water flow from the mixed liquid pipe 50 is injected into the inlet of the liquid outlet pipe at a position close to the outlet end of the mixed liquid tee joint 40, so that a negative pressure is formed in the mixed liquid tee joint 40 and the conical pipe section 402 of the liquid outlet pipe. The laundry detergent mixed liquid in the mixed liquid tee joint 40 enters the water inlet pipe 70 under the action of the negative pressure.

[0045] The second limiting plate 4031 is arranged on the outer wall of the straight pipe section 403. The liquid outlet end of the straight pipe section 403 is inserted into or threadedly connected to the water inlet end of the water inlet pipe 70. In this embodiment, the straight pipe section 403 is inserted into the water inlet pipe 70, and the second limiting plate 4031 defines the insertion position of the straight pipe section 403 in the water inlet pipe 70. A clamp 2023 is arranged outside the insertion position of the straight pipe section 403 in the water inlet pipe 70, to prevent the straight pipe section 403 from being separated from the water inlet pipe 70. In this embodiment, the straight pipe section 403 is inserted into the water inlet pipe 70. A V-shaped cutout 2022 is arranged on the inner wall of the water inlet pipe 70. A sealing ring 80 is arranged between the water inlet pipe 70 and the straight pipe section 403. Similarly, the V-shaped cutout 2022 is a partial V-shaped structure, and the sealing ring 80 has a V-shaped protrusion 801 arranged on the top. The V-shaped cutout 2022 on the water inlet pipe 70 is similar to the V-shaped cutout 2022 on the inner wall of the second main pipe 202, but is arranged in a mirror image. Further, the water inlet pipe 70 and the straight pipe section 403 are thinned, so that the inner wall of the straight pipe section 403 is flush with the inner wall of the water inlet pipe 70 after the straight pipe section 403 is inserted into the water inlet pipe 70, to avoid a height difference on the inner wall and reduce the water inflow speed and water pressure of the washing powder mixture / solution.

[0046] In this embodiment, the detergent pipe 60 is arranged below the washing powder box. On one hand, the washing powder mixture enters the detergent pipe 60 and the mixture three-way pipe 40 under the action of gravity and water flow impact. On the other hand, the washing powder mixture in the detergent pipe 60 and the washing powder box is quickly brought out of the mixture three-way pipe 40 and into the water inlet pipe 70 under the action of the negative pressure formed in the mixture three-way pipe 40 and / or the liquid outlet pipe as described above. The high-speed water flow from the small-diameter end of the mixture pipe 50 impacts the washing powder mixture, preventing the washing powder from caking in the water inlet pipe 70 and performing sufficient premixing. The diameter of the detergent pipe 60 is greater than the diameters of the second main pipe 202 and the water inlet pipe 70. The diameter of the main body of the mixture three-way pipe 40 is greater than the diameters of the second main pipe 202 and the water inlet pipe 70. The length of the main body of the mixture three-way pipe 40 is greater than the diameter of the detergent pipe 60, so that the mixture three-way pipe 40 has sufficient space to store the washing powder mixture flowing out of the detergent pipe 60. The washing powder is partially premixed in the mixture three-way pipe 40 under the action of gravity and the impact of the mixture itself.

[0047] The first main pipe 201 provides premixed water to the washing powder box, the second main pipe 202 provides washing water to the inner drum of the washing machine, and the second main pipe 202 premixes the washing powder at the mixing tee 40. Further, the water inlet main pipe 20 comprises the first main pipe 201 and the second main pipe 202, the water inlet ends of the first main pipe 201 and the second main pipe 202 are connected to the water source after being merged, so that the water inlet main pipe 20 forms a Y-shaped structure. A detergent water inlet control valve is arranged on the first main pipe 201, and according to a preset program, the water inlet control valve controls the quantitative water supply to the washing powder box through the first main pipe 201. A total control valve is arranged on the water source to control the water output of the water source. When the washing program of the washing machine starts, the water inlet main pipe 20 is supplied with water, the total control valve and the detergent water inlet control valve are turned on, the water is supplied to the washing powder box through the first main pipe 201, the washing powder in the washing powder box is preliminarily premixed, the water is supplied to the inner drum through the second main pipe 202, the mixing tee 40 and the water inlet pipe 70, and the washing powder is premixed as described above. According to the predetermined program, when the water supply to the washing powder box reaches a predetermined value, the detergent water inlet control valve is closed, the first main pipe 201 is closed, and only the second main pipe 202 is turned on. Under the action of negative pressure, the residual washing powder mixture in the detergent pipe 60 and the mixing tee 40 is all introduced into the inner drum, and there is no residue, so as to improve the utilization rate of the washing powder.

[0048] The end of the water inlet pipe 70 communicates with the inner drum. When the detergent premixing structure provided by the application is applied to a pulsator washing machine, the end of the water inlet pipe 70 is arranged at the balance ring at the top of the inner drum of the washing machine. When the detergent premixing structure is applied to a drum washing machine, the end of the water inlet pipe 70 is arranged at the window pad of the washing machine. The outlet of the end of the water inlet pipe 70 is also a conical pipe 502, the large-diameter end faces the mixing tee 40, and the small-diameter end faces the inner drum. Similarly, the speed and water pressure of the water supplied to the inner drum through the water inlet pipe 70 can be improved, so that the washing powder bath does not flow down along the inner wall of the inner drum, but is sprayed into the inner drum and directly sprayed onto the surface of the clothes. When the washing powder completely enters the inner drum, the washing water (clean water) introduced through the water inlet pipe 70 will be sprayed to the same position, and the washing powder solution washed down in front of the position will be mixed again and then introduced into the inner drum. Further, at least one mixing tank 90 is arranged on the water inlet pipe 70, the diameter of the mixing tank 90 is greater than the diameter of the water inlet pipe 70, and the diameter of the mixing tank 90 is greater than or equal to twice the diameter of the water inlet pipe 70. The washing powder solution is pre-stored in the mixing tank 90. The water inlet of the mixing tank 90 is also a conical pipe 502, which improves the water pressure and water speed of the mixing tank 90. The washing powder solution entering the mixing tank 90 is impacted by the high-pressure water flow of the solution that has entered in the early stage, so that a turbulent flow is formed in the mixing tank 90, and the solution is further mixed.

[0049] It should be noted that in the present embodiment, the specific structure of the detergent premixing structure provided by the present application is introduced in the premixing process taking the washing powder box as an example. The premixing structure provided by the present embodiment can effectively realize the preliminary premixing of the washing powder in the washing powder box, the second step premixing in the mixing tee 40, the third step premixing under the action of negative pressure, and the final mixing in the mixing tank 90, so that the washing powder is completely premixed before entering the inner cylinder, enters the inner cylinder in the form of an aqueous solution, prevents the washing powder from forming large particles to block the pipeline or directly entering the inner cylinder without forming an aqueous solution, and causes the washing powder to have a low use efficiency. In actual application, the premixing structure provided by the present application can be fully applied in the premixing process of any detergent, so that the detergent is fully mixed with water before entering the inner cylinder to form an aqueous solution, and the utilization rate of the detergent is improved. The application range of the present application is not limited by the foregoing. Further, the detergent premixing structure provided by the present application can also be applied to other washing equipment, such as a dishwasher.

[0050] In summary, the detergent premixing structure and washing equipment provided by the present application have the following beneficial effects compared with the prior art:

[0051] 4. The mixing liquid pipe with a smaller diameter is used to increase the water inlet speed, so that a negative pressure is formed in the mixing tee, the washing agent in the washing agent chamber is taken out under the action of the negative pressure, and the block-shaped particles are dispersed under the action of the high-speed water flow, so as to avoid the blockage of the water inlet pipe;

[0052] 5. The high-speed water flow is used to premix the washing agent and water quickly, so as to improve the premixing speed of the washing agent and water, form a uniform mixed solution of the washing agent and water in the inner cylinder, and improve the utilization rate of the washing agent;

[0053] 6. The end of the water inlet pipe is provided with a conical pipe and is directly connected to the window pad or the balance ring, so as to improve the water outlet speed of the mixed liquid, directly spray the premixed and fused liquid on the clothes to be washed, further improve the fusion of the washing agent and the clothes to be washed, and improve the washing effect.

[0054] The above only describes the preferred embodiments of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the above preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and equivalent embodiments with equivalent changes are equivalent. The embodiments in the above examples can be further combined or replaced, but as long as it does not deviate from the technical solution of the present application, any simple modification, equivalent change and modification of the above examples according to the technical essence of the present application are still within the scope of the present application.

Claims

1. A detergent premixing structure, comprising a detergent dispenser, a main water inlet pipe, and a water inlet pipe for injecting water into the inner drum of a washing machine, characterized in that: It also includes a mixing tee and a mixing pipe. One inlet of the mixing tee is connected to the outlet of the detergent box through a detergent pipe. The main water inlet pipe is connected to the other inlet of the mixing tee through the mixing pipe. The outlet of the mixing tee is connected to the water inlet pipe. The water outlet velocity of the mixing pipe is greater than the liquid outlet velocity of the detergent pipe, so that a negative pressure is formed inside the mixing tee and / or at the outlet of the mixing tee, which drives the detergent mixture in the detergent box to quickly enter the mixing tee, and the detergent premixing is completed inside the mixing tee and / or at the outlet. The detergent dispenser includes a laundry powder dispenser; The detergent premixing structure also includes an overflow structure to prevent the premixed detergent mixture from forming lumpy particles that clog the detergent tube. The overflow structure includes an overflow baffle between the side wall of the detergent box and the side wall of the detergent cavity. The height of the detergent box is less than the height of the overflow baffle, which is less than the height of the side wall of the detergent cavity. Gaps are left between the overflow baffle and both the detergent box and the detergent cavity, forming two overflow channels, one inside and one outside. The bottom of the detergent cavity has only one overflow hole, and the overflow baffle is located on the diameter of the overflow hole. Each overflow channel uses half of the overflow hole.

2. The detergent premix structure as described in claim 1, characterized in that: The outlet end of the mixing tube is a tapered tube, and the small-diameter end of the mixing tube is inserted into the mixing tee, with the end located between the center point of the mixing tee and the outlet.

3. The detergent premix structure as described in claim 2, characterized in that: The smaller diameter end of the mixing tube is located at the outlet of the mixing tee.

4. The detergent premix structure as described in claim 1, characterized in that: The end of the main water inlet pipe is provided with a flared end, and the mixing pipe is inserted into or threaded into the flared end. The inner wall of the flared end is provided with a V-shaped cut, and a sealing ring is provided between the flared end and the mixing pipe. The outer wall of the sealing ring is provided with a corresponding V-shaped protrusion.

5. The detergent premix structure as described in claim 1, characterized in that: The main water inlet pipe includes a first main pipe and a second main pipe that are connected to the water source after being connected at the water inlet. The first main pipe is connected to the detergent box, and the second main pipe is connected to the mixing tee through the mixing pipe.

6. The detergent premix structure as described in claim 1, characterized in that: The main body length of the mixing tee is greater than the diameter of the detergent tube.

7. A detergent premix structure as described in any one of claims 1 to 6, characterized in that: The outlet of the mixing tee includes a tapered section and a straight section. The large-diameter end of the tapered section faces the inside of the mixing tee, the small-diameter section is connected to the straight section, and the straight section is connected to the inlet pipe.

8. The detergent premix structure as described in claim 7, characterized in that: The straight pipe section is inserted into the water inlet pipe and connected to the water inlet pipe by plugging or threading. The inner wall of the water inlet pipe is provided with a V-shaped cut. A sealing ring is provided between the straight pipe section and the water inlet pipe, and a V-shaped protrusion is provided on the outer wall of the sealing ring.

9. A detergent premix structure as described in claim 7, characterized in that: The end of the mixing tube is inserted into the mixing tee, and the end of the mixing tube is a tapered tube, with a gap between the outer wall of the tapered tube and the inner wall of the tapered tube section for the detergent mixture to flow out under negative pressure.

10. A detergent premix structure as described in claim 7, characterized in that: The diameter of the main structure of the mixing tee is larger than the diameter of the large-diameter end of the tapered tube section.

11. A washing device, characterized in that: Includes a detergent premix structure as described in any one of claims 1 to 10.

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