A nozzle structure, an additive feeding device and a washing machine

Abstract

The present application provides a nozzle structure, which comprises a spray pipe, an outlet end of the spray pipe is provided with a spray head, the spray head is provided with a spray outlet, the spray head is provided with a water spraying cavity and a flow channel, the water spraying cavity is communicated with the spray outlet, the flow channel guides water in the spray pipe to the water spraying cavity, the flow channel and the water spraying cavity are connected through a connecting flow channel, the connecting flow channel extends along the tangential direction of the water spraying cavity, so as to increase the tangential acceleration of water flow at the spray outlet, and then the technical progress of increasing the water coverage area of the nozzle structure is achieved. The present application also provides an additive feeding device and a washing machine, the feeding device comprises a water supply channel and a feeding unit for feeding additives to the water supply channel, and the outlet of the water supply channel is connected with the nozzle structure. Through the above device, the additive solution directly flows to the nozzle structure through the water flow of the water supply channel arranged on the feeding device, so as to expand the coverage area of the sprayed additive solution, and then the washing effect of the washing machine is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of clothes processing equipment, and particularly relates to an additive feeding device of a washing machine, and more particularly to a nozzle structure for feeding an additive solution of a washing machine. BACKGROUND

[0002] The existing washing machine is generally provided with an outer drum for containing washing water, and a rotatable inner drum is arranged in the outer drum. A dewatering hole is formed in the inner drum to communicate the inner drum with the outer drum, so that the washing water flowing into the outer drum can flow in and out of the inner drum through the dewatering hole, so as to realize the effect that the washing water contacts with the load to be processed in the inner drum and the load is processed by the washing water.

[0003] The additive feeding mode of the above-mentioned existing washing machine is as follows: the additive feeding device feeds the additive into the pipeline communicated with the outer drum of the washing machine, and then the fed additive flows into the outer drum of the washing machine along the pipeline. Therefore, the additive fed by the existing mode is in the outer drum of the washing machine and outside the inner drum, and cannot directly contact with the load fed in the inner drum.

[0004] Then, when the washing machine performs a washing program, the fed additive is mixed with the washing water flowing into the outer drum, and part of the washing water mixed with the additive flows into the inner drum through the dewatering hole and contacts with the load to be processed in the inner drum, so that a small part of the additive mixed in the washing water contacts with the load and produces an effect on the load. Therefore, the conventional additive feeding mode has the problems of low utilization efficiency of the fed additive and waste of the additive.

[0005] In order to improve the utilization rate of the detergent, it is better to feed the additive directly into the inner drum of the washing machine, so that the additive directly contacts with the washing load in the inner drum; however, the water flow tangential force at the ejection outlet of the existing nozzle structure is small, so that the ejection water has a short divergence distance and cannot fully cover the inside of the inner drum.

[0006] Therefore, the present application is proposed. SUMMARY

[0007] The present application solves the technical problem of overcoming the deficiencies of the prior art and provides a nozzle structure to achieve the purpose of increasing the ejection coverage area.

[0008] To achieve the above-mentioned application purposes, the basic idea of the technical solution adopted by the present application is as follows:

[0009] The present application provides

[0010] A nozzle structure comprises a nozzle pipe, an outlet end of the nozzle pipe is provided with a nozzle head, the nozzle head is provided with a jetting outlet, the nozzle head is provided with a water jetting cavity and a flow channel, the water jetting cavity is communicated with the jetting outlet, and the flow channel guides water in the nozzle pipe to the water jetting cavity, characterized in that the flow channel is connected with the water jetting cavity through a connecting flow channel, the connecting flow channel extends along a tangential direction of the water jetting cavity, so as to increase the tangential acceleration of water flow at the jetting outlet, and further to increase the water coverage area of the nozzle structure.

[0011] Further, the nozzle head is internally provided with an adapter, the adapter is a cylindrical structure with one open end and one closed end, the open end is inserted into the jetting outlet of the nozzle pipe, and the closed end and the end face of the nozzle head form the water jetting cavity.

[0012] Preferably, the adapter is clamped and installed between the end face of the nozzle head and the outlet end of the nozzle pipe.

[0013] Further, a groove is arranged at the center of the closed end of the adapter, the groove and the end face of the nozzle head jointly form the water jetting cavity, and at least one gap is arranged on the outer periphery of the closed end, the two ends of each gap are communicated with the flow channel and the water jetting cavity respectively, and the gap forms the connecting flow channel connecting the flow channel and the water jetting cavity.

[0014] Preferably, the outer periphery of the closed end of the adapter is in close contact with the end face of the nozzle head.

[0015] Further preferably, the aperture of the connecting flow channel gradually narrows along the water flow direction.

[0016] Further, the water jetting cavity is a chamber gradually narrowing from the outer periphery to the center, the nozzle head is provided with the jetting outlet, the jetting outlet is opposite to the center of the water jetting cavity and is arranged along the axis.

[0017] Preferably, a plurality of strip-shaped gaps are arranged at the outer periphery of the water jetting cavity at equal intervals, each strip-shaped gap extends along the tangential direction of the corresponding position of the water jetting cavity, and each strip-shaped gap is symmetrically arranged relative to the center of the hemispherical water jetting cavity.

[0018] Further preferably, the jetting outlet, the outlet end of the nozzle pipe and the cylindrical adapter are coaxially arranged.

[0019] Further, a through hole is arranged on the side wall of the adapter, the gap between the inside of the adapter, the through hole and the outside of the side wall of the adapter and the inside of the nozzle head jointly form the flow channel.

[0020] Preferably, the through hole is arranged on the middle part of the side wall of the cylindrical adapter.

[0021] Further preferably, a ring-shaped groove is arranged on the outside of the middle part of the cylindrical adapter, and a plurality of through holes are arranged in the ring-shaped groove at equal intervals.

[0022] Further, the nozzle head comprises an end cover, a spray outlet is arranged at the center of the end cover; an annular flange is arranged at the outer periphery of the end cover, the annular flange is bent towards the spray pipe and extends along the axial direction of the spray pipe, the extending end of the annular flange is sealingly connected with the water outlet end of the spray pipe, and the inside of the annular flange forms a water outlet cavity;

[0023] Preferably, the end of the annular flange is in close contact with the end face of the outlet end of the spray pipe, and the close contact part is sealingly connected through a fusion process;

[0024] Preferably, the spray outlet is a circular hole with a radial dimension smaller than the inner diameter of the spray pipe.

[0025] Further, the spray pipe is sequentially divided into a water inlet part, a bending part and a water outlet part along the water flow direction, the water inlet part and the water outlet part are straight pipes extending along a straight line and a bending pipe with the axis changing the extending direction, respectively; the pipe diameter of the water inlet part is greater than or equal to the pipe diameter of the water outlet part.

[0026] Further, at least one radially protruding insertion mounting rib is arranged on the outer wall of the water outlet part of the spray pipe;

[0027] Preferably, at least two insertion mounting ribs radially protruding in opposite directions and located in different sections are arranged on the outer wall of the water outlet part;

[0028] Further preferably, a radially protruding stop rib is arranged on the outer wall of the water inlet part, and the stop rib is located at the connection between the water inlet part and the bending part.

[0029] After the above technical solution is adopted, the nozzle structure has the following beneficial effects:

[0030] Through the above arrangement, a vortex-shaped water flow is formed in the spray cavity, and the vortex-shaped water flow is sprayed from the spray outlet, which can improve the tangential velocity of the water flow in the nozzle structure to the spray outlet, so that the water flow at the spray outlet diverges to all directions, thereby realizing the effect that the water flow sprayed from the spray outlet of the nozzle structure is conically divergent, and further achieving the significant technical progress of increasing the water coverage area of the nozzle structure. More particularly, the above nozzle structure can increase the spraying area of the sprayed additive solution, and further make the additive solution put into the inner cylinder of the additive putting device through the nozzle structure fully contact with the load in the cylinder, thereby achieving the significant technical progress of improving the washing effect of the washing machine.

[0031] Another purpose of the present application is to provide an additive putting device to realize the purpose of directly putting additives through the water supply channel.

[0032] In order to achieve the above-mentioned purposes, the technical solutions adopted are as follows:

[0033] An additive dispensing device for a washing machine includes: a water supply path; a dispensing unit for dispensing an additive into the water supply path; and an outlet of the water supply path connected to the aforementioned nozzle structure.

[0034] This invention, through the aforementioned device, allows additives to be directly dispensed via a water channel on the dispensing device, avoiding the additives flowing through the water box. This not only shortens the flow path of the additives but also reduces the amount of rinsing water required for additive dispensing, significantly improving additive utilization. Simultaneously, the additive solution flowing from the water channel is directly sprayed through the nozzle, increasing the coverage area of ​​the sprayed additive solution and allowing it to be directly sprayed onto the load to be treated deep within the inner cylinder.

[0035] Furthermore, the water inlet of the nozzle structure's spray pipe is connected to the outlet of the water supply circuit via a conduit. The outlet end of the conduit is inserted and fixed relative to the water inlet of the spray pipe. A radially protruding ring of insertion mounting ribs on the outer wall of the water inlet is used to limit the end of the conduit, thereby achieving the insertion and positioning between the conduit and the spray pipe. This ensures reliable insertion and prevents them from detaching from each other.

[0036] Another objective of the present invention is to provide a washing machine equipped with the above-mentioned additive dispensing device, so as to achieve the purpose of directly dispensing additives into the inner drum of the washing machine, thereby achieving the effect of direct contact between the dispensed detergent and the load to be processed in the inner drum, and improving the detergent utilization rate.

[0037] To achieve the above-mentioned objectives, the technical solution adopted is as follows:

[0038] A washing machine equipped with the above-mentioned additive dispensing device includes: an inner drum, a nozzle structure installed at the opening of the inner drum, and the spray outlet of the nozzle structure opening towards the inside of the inner drum.

[0039] Through the above-described configuration, the present invention enables a washing machine equipped with the above-described additive dispensing device to directly spray the additive solution formed by mixing the additive with a small amount of incoming water in the water supply circuit onto the load to be processed inside the inner drum, thereby significantly improving the utilization rate of the dispensed additive.

[0040] Furthermore, the inner drum is fitted into the outer drum, the outer drum and the inner drum are coaxially arranged and have a drum opening on the same side, and a window gasket that protrudes outward is connected to the drum opening of the outer drum; the nozzle structure is set on the window gasket, the spray pipe of the nozzle structure passes through the window gasket, the nozzle is located on the inner circumference of the window gasket, and the axis of the water outlet of the spray pipe is oriented downward and inclined to one side inside the inner drum of the washing machine.

[0041] Furthermore, the nozzle structure is located at the very top of the annular window pad; the axis of the water outlet of the jet pipe is in the same plane as the axis of the inner cylinder, and the angle between the axis of the water outlet of the jet pipe and the axis of the inner cylinder is 20 degrees to 60 degrees.

[0042] Further, the insertion mounting rib provided on the outer wall of the water outlet of the spray pipe abuts against both sides of the window cushion respectively, so that the spray pipe is clamped and mounted on the window cushion.

[0043] Meanwhile, the present application has simple structure, remarkable effect and is suitable for popularization and use.

[0044] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings, which are part of the present application, serve to provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions serve to explain the present application but do not constitute improper limitations on the present application. Obviously, the accompanying drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings. In the drawings:

[0046] Figures 1 to 3 is a structure schematic view of the washing machine from different perspectives in the embodiment of the present application;

[0047] Figure 4 is a structure schematic view of the A-A cross section of Figure 3 in the embodiment of the present application;

[0048] Figure 5 is a structure schematic view of the washing machine after the first part of the upper cover is removed in the embodiment of the present application;

[0049] Figure 6 is a top view structure schematic view of the washing machine after the first part of the upper cover is removed in the embodiment of the present application;

[0050] Figure 7 and Figure 8 is a structure schematic view of the washing machine after the additive feeding device explodes in the embodiment of the present application;

[0051] Figure 9 is a structure schematic view of the nozzle structure in the embodiment of the present application.

[0052] Figure 10 is a B-B cross section structure schematic view of Figure 9 in the embodiment of the present application;

[0053] Figure 11 is a D-D cross section structure schematic view of Figure 10 in the embodiment of the present application;

[0054] Figure 12 and Figure 13 are explosion structure schematic views of the nozzle structure from different perspectives in the embodiment of the present application.

[0055] Main elements in the figures are explained as follows:

[0056] 100, dispensing device; 200, outer cylinder; 300, inner cylinder; 400, window pad; 500, nozzle structure; 600, conduit; 1, water supply channel; 2, housing; 3, upper cover; 31, first part; 32, second part; 4, liquid storage cavity; 5, liquid storage box; 6, pump; 7, communication device; 8, liquid pumping channel; 11, outlet; 12, inlet; 13, liquid suction port; 51, jet pipe; 52, spray head; 53, jet outlet; 54, water outlet cavity; 55, adapter; 56, channel; 57, end cover; 58, annular folded edge; 59, through hole; 510, water spraying cavity; 511, connecting channel; 512, plug-in mounting rib; 513, stop rib; 514, water inlet portion; 515, bending portion; 516, water outlet portion; 81, inlet; 82, outlet.

[0057] 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 referring to specific embodiments. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0059] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "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 therefore cannot be understood as indicating or implying 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 limiting the present application.

[0060] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "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 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.

[0061] As Figures 1 to 8As shown in the figure, the embodiment of the present application also introduces a washing machine, which comprises: an outer drum 200 for containing water, a rotatable inner drum 300 for containing a load to be treated is installed in the outer drum 200, and an additive feeding device 100 for directly feeding additives into the inner drum 300. Through the above arrangement, the washing machine can realize the use effect of directly feeding additives into the inner drum 300 and directly spraying the added additives onto the load to be treated in the inner drum 300, thereby achieving a significant technical progress in improving the utilization rate of additives.

[0062] As Figures 1 to 8 shown, the additive feeding device 100 described in the embodiment of the present application comprises: a water supply channel 1 for the water flow entering the additive feeding device 100; a feeding unit for feeding additives into the water supply channel 1; and a nozzle structure 500, the outlet 11 of the water supply channel 1 is connected with the nozzle structure 500, and the nozzle structure 500 is arranged towards the inner drum 300 of the washing machine. When the additives are fed, a small amount of water flows into the water supply channel, so that the additive solution formed by mixing the additives with the small amount of water in the water supply channel 1 can be directly sprayed onto the load to be treated in the inner drum 300 through the nozzle structure 500, thereby significantly improving the utilization rate of the added additives.

[0063] Through the above device, the additives are directly fed out through the water channel arranged on the feeding device 100, which avoids the additives flowing through the water box, not only shortens the flow path of the additives, but also reduces the amount of flushing water required for feeding the additives, greatly improving the utilization rate of the additives.

[0064] Embodiment one

[0065] As Figures 9 to 13 shown, the embodiment introduces a nozzle structure, which comprises: a spray pipe 51, the outlet end of the spray pipe 51 is provided with a spray head 52, the spray head 52 is provided with a spray outlet 53, the spray head 52 is provided with a water spraying cavity 510 and a flow channel 56, the water spraying cavity 510 is communicated with the spray outlet 53, the flow channel 56 guides the water in the spray pipe 51 to the water spraying cavity 510, the flow channel 56 and the water spraying cavity 510 are connected through a connecting flow channel 511, and the connecting flow channel 511 extends along the tangential direction of the water spraying cavity 510 to increase the tangential acceleration of the water flow at the spray outlet.

[0066] Through the above setting, the water flow flowing into the water injection cavity through the connected flow channel flows tangentially along the cavity, so that a vortex flow is formed in the water injection cavity, to increase the tangential velocity of the water flow flowing to the jet outlet in the nozzle structure, so that the water flow sprayed from the jet outlet is in a vortex shape, and the water flow at the jet outlet diverges to the surrounding, to achieve the effect that the water flow sprayed from the jet outlet of the nozzle structure is in a conical diverging shape, thereby achieving the significant technical progress of increasing the water outlet coverage area of the nozzle structure. More particularly, the above nozzle structure can increase the spraying area of the sprayed additive solution, so that the additive solution put into the inner cylinder by the additive putting device through the nozzle structure can fully contact the load in the cylinder, thereby achieving the significant technical progress of improving the washing effect of the washing machine.

[0067] As shown in Figures 9 to 13 In the embodiment, the nozzle 52 is correspondingly buckled at the outlet end of the jet pipe 51, and the buckling joint of the nozzle 52 and the jet pipe 51 is sealed by a welding process, so that the nozzle 52 and the jet pipe 51 are connected by the welding process to form an integrated whole, and the overall strength of the nozzle structure is improved.

[0068] In the embodiment, the nozzle 52 is internally provided with a water outlet cavity 54, and the water outlet cavity 54 is internally provided with an adapter 55. The adapter 55 is a cylindrical structure with one end closed and the other end connected to the jet pipe 51. A through hole 59 is formed in the side wall of the adapter 55 close to the closed end, and the through hole 59 connects the inside of the adapter 55 with the outside, so that the gaps between the inside of the adapter 55, the through hole, the outer wall of the adapter, and the inner wall of the nozzle 52 are sequentially connected to form a flow channel 56.

[0069] By flowing the water flow of the nozzle structure into the water channel through the side wall of the adapter, the water flow can flow to the jet outlet through the flow channel perpendicular to the axis of the jet outlet, avoiding the water flowing directly along the axis of the jet pipe, and achieving the effect of improving the tangential water flow acceleration at the jet outlet.

[0070] Figures 9 to 13 As shown in the figure, in the embodiment, the open end of the adapter 55 is inserted into the water outlet end of the jet pipe 51, and the closed end is connected between the end cover 57 of the nozzle 52 to form a water injection cavity 510.

[0071] In the embodiment, the adapter 55 is an independent part which is clamped between the end cover 57 of the nozzle 52 and the outlet end of the jet pipe 51 to achieve fixed installation of the adapter 55. Preferably, the adapter 55, the outlet end of the jet pipe 51 and the jet outlet 53 are coaxially arranged so that the jet water flow from the nozzle structure first diverges and then converges to the center to improve the tangential velocity of the jet water and increase the water coverage area. Further preferably, an assembly groove is arranged at the outlet end of the jet pipe 51 to ensure the positioning of the adapter during assembly, and the open end of the adapter 55 is inserted into the assembly groove; at the same time, the closed end of the adapter 55 abuts against the end cover 57 of the nozzle 52 so that the adapter is clamped and fixed inside the nozzle 52.

[0072] In the embodiment, a recess is arranged at the center of the closed end of the adapter 55, and the recess and the end cover 57 of the nozzle 52 jointly form a water jet cavity 510; the water jet cavity 510 can be of any shape, and preferably is a chamber structure with a circular cross section. In addition, the outer periphery of the closed end of the adapter 55 abuts against the end cover 57 of the nozzle 52 to ensure the assembly of the adapter in the nozzle 52; at the same time, at least one notch is arranged at the outer periphery of the adapter 55, and the two ends of each notch are respectively connected to the flow channel 56 and the water jet cavity 510, and the notch forms a connecting flow channel 511 connecting the flow channel 56 and the water jet cavity 510.

[0073] Preferably, in the embodiment, the aperture of the connecting flow channel 511 gradually narrows along the water flow direction to increase the water pressure of the water flow into the water jet cavity 510 and improve the water flow velocity, and further improve the radial acceleration of the water jet from the jet outlet 53.

[0074] Preferably, in the embodiment, to further improve the radial acceleration of the water jet from the jet outlet, the following arrangement can also be made: the water jet cavity 510 is a chamber which gradually narrows from the outer periphery to the center, the end cover 57 of the nozzle 52 is provided with the jet outlet 53 which is opposite to the center of the circular water jet cavity 510 and is arranged along the axis. By arranging the inner wall of the water jet cavity to gradually narrow from the outer periphery to the center, the vortex water flow in the water jet cavity 510 is pressurized by the narrowing inner wall of the chamber during the flow to the center, so that the water flow velocity at the jet outlet is increased.

[0075] Figures 9 to 13As shown, in order to improve the tangential velocity of the vortex water flow in the water injection cavity, in the embodiment, a plurality of strip-shaped openings are arranged at equal intervals on the outer periphery of the water injection cavity 510, and each strip-shaped opening forms a connecting flow channel 511; each connecting flow channel 511 extends along the tangential direction of the corresponding position of the water injection cavity 510 and protrudes in the same circumferential direction, so that each water flow in the water injection cavity 510 is injected in the same circumferential direction, and a single clockwise or counterclockwise vortex water flow is obtained in the water injection cavity 510. In the embodiment, in order to ensure the stability of the vortex water flow, the connecting flow channels 511 are generally arranged symmetrically with respect to the center of the circular water injection cavity 510, so as to ensure the stability of the vortex water flow in the water injection cavity 510.

[0076] Preferably, in the embodiment, in order to achieve the divergence effect of the water flow, a plurality of through holes 59 are arranged at equal intervals on the side wall of the adapter 55, and the interval between adjacent through holes 59 is equal, so that water can flow out of the through holes 59 in different directions in the adapter 55, so as to realize the effect of flowing to the injection outlet 53 from different radial directions, improve the radial acceleration of the water flow in different directions at the injection outlet 53, and further achieve the significant technical progress of improving the divergence degree of the water flow at the injection outlet 53 and increasing the coverage area of the injected water. Further preferably, a ring-shaped groove is arranged on the outer side wall of the middle part of the cylindrical adapter 55, and a plurality of through holes 59 are arranged at equal intervals in the ring-shaped groove.

[0077] In the embodiment, the inner circumferential diameter of the injection pipe 51 is greater than the inner diameter of the adapter 55, the inner diameter of the adapter 55 is greater than the width of the through hole 59, and the width of the through hole 59 is greater than the width of the gap between the outer peripheral wall of the adapter 55 and the inner wall of the nozzle 52. Through the above arrangement, the internal water path of the nozzle structure gradually decreases in width, and each narrowed part is used to pressurize the water flow, so as to further improve the divergence effect of the water flow at the injection outlet and increase the injection coverage area.

[0078] In the embodiment, the hole diameter of the injection outlet 53 is smaller than the inner diameter of the adapter 55 and greater than the width of the gap between the outer peripheral wall of the adapter 55 and the inner wall of the nozzle 52, so as to ensure that the water flow flowing from the flow channel 56 to the injection outlet 53 can be radially diverged and injected in all directions from the injection outlet 53, and the effect of the conical divergent water flow injected outward from the injection outlet 53 is achieved.

[0079] Figures 9 to 13 As shown, in the embodiment, the nozzle 52 includes an end cover 57, and the center of the end cover 57 is provided with the injection outlet 53; the outer periphery of the end cover 57 is provided with a ring-shaped folded edge 58 which is bent to the side of the injection pipe 51 and extends along the axial direction of the injection pipe 51, the extension end of the ring-shaped folded edge 58 is sealingly connected with the water outlet end of the injection pipe 51, and the inside of the ring-shaped folded edge 58 forms a water outlet cavity 54.

[0080] In the embodiment, the end of the annular folded edge 58 is in close contact with the end face of the outlet end of the spray pipe 51, and the close contact position is sealed and connected by a welding process.

[0081] In the embodiment, the spray outlet 53 is a circular hole with a smaller radial dimension than the inner diameter of the spray pipe 51, and the spray outlet 53 and the adapter 55 are coaxially arranged with the spray pipe 51.

[0082] Figures 9 to 13 As shown, in the embodiment, the spray pipe 51 is sequentially divided into a water inlet portion 514, a bent portion 515, and a water outlet portion 516 along the water flow direction. The water inlet portion 514 and the water outlet portion 516 are straight pipes extending along a straight line, and the bent portion 515 is a bent pipe with a changed extension direction of the axis, so as to achieve the coaxial arrangement of the water outlet direction and the water inlet direction, and to facilitate the assembly of the spray pipe. Preferably, the pipe diameter of the water inlet portion 514 is greater than or equal to the pipe diameter of the water outlet portion 516, so as to increase the flow velocity of the water flow in the flow passage with a narrowed cross-sectional area, and to further improve the jet velocity of the water flow sprayed by the nozzle structure.

[0083] As shown in Figure 4 and Figures 9 to 13 In the embodiment, at least one radially protruding plug-in mounting rib 512 is arranged on the outer wall of the water outlet portion 516 of the spray pipe 51, so as to fix and mount the spray pipe 51 on the washing machine by using the plug-in mounting rib 512, and to achieve the fixed mounting of the nozzle structure. Preferably, at least two plug-in mounting ribs 512 radially protruding in opposite directions and located in different sections are arranged on the outer wall of the water outlet portion 516, so that the different plug-in mounting ribs 512 abut against different sides of the window gasket 400 of the washing machine, and the spray pipe 51 is clamped and fixed on the window gasket 400 by the plug-in mounting ribs 512 located on both sides, and the assembly and fixation of the nozzle structure on the washing machine are achieved.

[0084] As shown in Figure 4 and Figures 9 to 13 In the embodiment, a radially protruding stop rib 513 is arranged on the outer wall of the water inlet portion 514, and the stop rib 513 is located at the connection position of the water inlet portion 514 and the bent portion 515. The water outlet end of the conduit 600 is plugged into the outer wall of the water inlet portion 514, and the plug-in end portion of the conduit 600 is positioned and stopped at the plug-in position by using the stop rib 513, and the plug-in end portion of the conduit 600 is plugged into the outer periphery of the protruding stop rib 513 to achieve the fixation of the conduit 600. At the same time, the stop rib 513 can also be provided in other structures, for example, a pipe clamp. The pipe clamp is arranged on the outer wall of the water inlet portion 514, and the conduit plugged into the outer periphery of the water inlet portion 514 is clamped and fixed, so as to achieve the fixed connection of the conduit 600 and the spray pipe 51.

[0085] Embodiment Two

[0086] As shown in Figures 1 to 8As shown, in the embodiment, an additive dispensing device for a washing machine is introduced, which comprises: a water supply channel 1; a dispensing unit for dispensing additives to the water supply channel 1; the outlet of the water supply channel 1 is connected with the nozzle structure 500, and the nozzle structure 500 sprays the additive solution supplied by the water supply channel into the inner drum 300 of the washing machine.

[0087] In the embodiment, the water supply channel 1 is integrated on the shell 2 of the additive dispensing device 100, the outlet 11 of the water supply channel 1 is arranged on the outer side of the shell 2, the nozzle structure is arranged outside the shell 2, and the outlet 11 of the water supply channel 1 is connected with the nozzle structure through the conduit 600. By integrating the water supply channel 1 on the shell 2 of the additive dispensing device 100, the outlet 11 of the water supply channel 1 is directly connected with the nozzle structure, so as to spray the additive and water extracted through the water supply channel 1 together, thereby realizing the purpose that the additive dispensing device 100 directly sprays the additive through the nozzle structure without the water box part of the dispensing device 100.

[0088] As shown in Figure 7 and Figure 8 In the embodiment, the top of the shell 2 of the additive dispensing device 100 is the upper cover 3, the water supply channel 1 is arranged inside the upper cover 3, the outlet 11 of the water supply channel 1 is exposed on the outer peripheral side of the upper cover 3, the inlet end of the conduit 600 is connected with the outlet 11 of the water supply channel 1, and the outlet end of the conduit 600 is connected with the nozzle structure 500 arranged outside the shell 2; preferably, the upper cover 3 comprises a first part 31 and a second part 32 which are mutually buckled, the first part 31 and the second part 32 are relatively spliced, and the water supply channel 1 is formed at the joint surface. Further preferably, the first part 31 and the second part 32 of the upper cover 3 are connected through a welding process, so as to form a closed and pressure-bearing water channel structure inside.

[0089] Thus, the water supply channel 1 of the additive dispensing device 100 is integrated on the upper cover 3, so that the water and the additive of the dispensing device 100 are directly dispensed through the water supply channel 1 inside the upper cover 3, thereby realizing the effect that the additive directly flows out of the outlet 11 on the outer peripheral side of the upper cover 3 and is dispensed.

[0090] In the embodiment, the dispensing unit comprises a liquid storage cavity 4 for storing additives, and the liquid storage cavity 4 is connected with the water supply channel 1; the dispensing device 100 is further provided with a power unit for pumping the additive in the liquid storage cavity 4 into the water supply channel.

[0091] As shown in Figures 1 to 8As shown, in the embodiment, the power unit is a pump 6 arranged on the liquid suction flow channel 8 connected with the water supply channel 1, and provides driving force for the liquid in the liquid suction flow channel 8 to flow from the liquid storage cavity 4 to the water supply channel 1. In the embodiment, the liquid suction flow channel 8 is also arranged inside the upper cover 3, the inlet 81 of the liquid suction flow channel 8 is connected with the liquid storage cavity 4 through the communicating device 7, the outlet 82 of the liquid suction flow channel 8 is connected with the inlet of the pump 6, and the outlet of the pump 6 is connected with the liquid suction port 13 arranged on the water supply channel 1. By controlling the start and stop of the pump 6, the additive in the liquid storage cavity 4 can be pumped to the water supply channel 1 for dispensing.

[0092] In the embodiment, the power unit can also be provided with other existing structures, for example, the power unit is a suction pump, the suction port of the suction pump is connected with the water supply channel 1, so that negative pressure is formed in the water supply channel 1, and the additive in the liquid storage cavity 4 is sucked to the water supply channel 1 through the liquid suction flow channel 8.

[0093] And / or, the power unit can also be a Venturi tube arranged on the water supply channel 1, the Venturi tube is provided with a negative pressure area with sudden change of pipe diameter, the negative pressure area can form negative pressure by the flow of water, the negative pressure area of the Venturi tube is provided with a suction port, and the suction port is connected with the liquid storage cavity 4 through the liquid suction flow channel 8 (not marked in the drawing).

[0094] In the embodiment, the additive dispensing device 100 comprises a plurality of liquid storage cavities 4, each of which can contain different types of additives, such as detergents, softeners, fragrances, disinfectants, etc.; the dispensing device 100 is provided with a control device, which is used to control the connection of each liquid storage cavity 4 with the water supply channel 1 selectively or in combination, so as to correspondingly dispense any one or simultaneously dispense multiple types of additives into the water supply channel 1.

[0095] In the embodiment, the control device can be provided with any existing structure capable of achieving the above functions; for example:

[0096] In the embodiment, each liquid storage cavity 4 can be connected with the water supply channel 1 through a flow channel provided with a control valve, so as to achieve the effect of separate or combined on-off control of each flow channel by controlling the opening and closing of each control valve, thereby achieving the purpose of independent dispensing of any type of additive or simultaneous dispensing of multiple types of additives;

[0097] Each liquid storage cavity 4 can also be connected with different inlets of the same reversing valve one by one, the outlet of the reversing valve is connected with the water supply channel 1, the reversing valve is provided with a rotatable valve core for controlling the connection of any or combined inlets with the outlet, and the same effect of independent dispensing of any type of additive or simultaneous dispensing of multiple types of additives can be achieved (not marked in the drawing).

[0098] For example,Figures 1 to 8 As shown, in this embodiment, the outer shell 2 of the dispensing device 100 is provided with a liquid storage box 5. The liquid storage box 5 is installed in the outer shell 2 of the additive dispensing device 100 by being able to be pulled outward. The liquid storage box 5 is provided with at least one liquid storage chamber 4 for storing additives. Each liquid storage chamber 4 on the liquid storage box 5 is connected to the water supply line 1 via a connector 7. The connector 7 is provided with a control device for controlling the selective or combined connection of each liquid storage chamber 4 to the water supply line 1.

[0099] In this embodiment, the inlet 12 of the water supply path 1 is located on the outer wall of the outer casing 2. The inlet 12 of the water supply path 1 is connected to the washing machine's water inlet pipe, so that washing water can flow into the water supply path 1 through the inlet 12. The outer casing 2 of the additive dispensing device 100 is provided with a water inlet connector, and the two ends of the water inlet connector are respectively connected to the inlet 12 of the water supply path 1 and the washing machine's water inlet pipe; more preferably, a control valve for controlling the on / off of the water path is installed at the water inlet connector.

[0100] like Figures 6 to 8 As shown, in this embodiment, a suction port 13 is provided in the middle of the water supply channel 1. The suction port 13 is connected to the dispensing unit, so that the additive is drawn into the water supply channel 1 from the suction port 13. Preferably, the suction port 13 is connected to the outlet of the pump 6, the inlet of the pump 6 is connected to the outlet 82 of the liquid extraction channel 8, the inlet 81 of the liquid extraction channel 8 is connected to the outlet of the communicating vessel 7, and the multiple inlets of the communicating vessel 7 are connected one-to-one with each liquid storage chamber 4, so as to realize that the additive in the liquid storage chamber 4 is drawn into the water supply channel 1 through the above-mentioned channels under the driving action of the pump 6.

[0101] like Figure 6 As shown, in this embodiment, the portion of the water supply path 1 downstream of the suction port 13 can mix the additive flowing into the water supply path 1 with the incoming water to form an additive solution. Preferably, the suction port 13 is located close to the inlet 12 of the water supply path 1 to maximize the length of the water supply path 1 downstream of the suction port 13, thereby increasing the space in the downstream portion of the water supply path 1 where the additive and water are mixed, and thus improving the mixing uniformity between the additive and the incoming water.

[0102] Example 3

[0103] like Figures 1 to 13 As shown, this embodiment also introduces a washing machine equipped with the additive dispensing device 100 described in Embodiment 2 above, which includes: an outer drum 200, an inner drum 300 with an opening on the same side as the outer drum 200, a window gasket 400 extending outward from the opening of the outer drum 200, a nozzle structure 500 installed at the window gasket 400, and the spray outlet 53 of the nozzle structure 500 being located on the inner circumference of the window gasket 400 and spraying the additive solution toward the opening of the inner drum 300.

[0104] In the embodiment, the window pad 400 is an annular structure extending along the circumference of the opening of the outer cylinder 200; the nozzle structure 500 is arranged on the top of the annular window pad 400, so that the additive solution sprayed by the nozzle structure 500 can maximize the spraying distance and thus increase the coverage area of the additive solution. In the embodiment, the spraying pipe 51 of the nozzle structure 500 penetrates through the window pad 400, the nozzle head 52 is located on the inner circumferential side of the annular window pad 400, and the water outlet 516 of the spraying pipe 51 is arranged obliquely towards the inside of the inner cylinder 300, so as to maximize the spraying range; at the same time, the water inlet 514 of the spraying pipe 51 is arranged obliquely upwards and towards the inside of the outer cylinder 300, so as to be connected with the conduit 600. Preferably, the extension line of the axis of the water outlet 516 of the spraying pipe 51 intersects with the bottom of the inner cylinder 300 or the lower end of the inner cylinder sidewall near the bottom of the inner cylinder 300, so as to maximize the spraying coverage area of the nozzle structure.

[0105] As shown in Figure 4 and Figures 9 to 13 In the embodiment, two plug-in mounting ribs 512 radially protruding in opposite directions and located in different sections are arranged on the outer wall of the water outlet of the spraying pipe 51, and the two plug-in mounting ribs 512 are arranged alternately, so that after the spraying pipe 51 penetrates through the window pad 400 of the washing machine, the different plug-in mounting ribs 512 abut against the inner circumferential side and the outer circumferential side of the window pad 400 of the washing machine respectively, so that the spraying pipe 51 is clamped and fixed on the window pad 400 by the plug-in mounting ribs 512 on both sides, and thus the assembly and fixation of the nozzle structure on the washing machine are realized.

[0106] In the embodiment, the axis of the spraying pipe 51 is in the same plane as the axis of the inner cylinder 300 of the washing machine, so that the nozzle structure 500 is located at the central part in the horizontal direction of the inner cylinder 300, and thus it is ensured that the nozzle structure 500 can uniformly spray the additive solution to the left and right sides of the inner cylinder 300, and the contact degree of the additive solution with the load is improved. Preferably, the included angle between the axis of the spraying pipe 51 and the axis of the inner cylinder 300 of the washing machine is 20 to 60 degrees, so as to maximize the coverage area of the additive solution sprayed by the nozzle.

[0107] In the embodiment, a conduit 600 is arranged independently outside the shell of the additive feeding device 100 and outside the outer cylinder 200, and the two ends of the conduit 600 are respectively plugged into the inlet of the nozzle structure 500 and the outlet 11 of the water supply channel 1, so that the additive solution supplied by the water supply channel 1 can be directly drained to the nozzle structure 500 through the conduit 600, and the effect of directly spraying and feeding into the inner cylinder 300 of the washing machine is realized. Preferably, the conduit 600 is made of rubber or other materials, which can be bent and deformed.

[0108] The present application sets the additive feeding device 100 on the washing machine, so that the additive of the washing machine flows to the nozzle structure 500 through the water supply channel 1, and is directly sprayed into the inner drum 300 by the nozzle structure 500. Therefore, the additive of the washing machine does not flow through the water box and the outer drum 200 outside the inner drum 300, but directly flows into the inner drum 300 through the water channel of the feeding device 100 and is sprayed to the load to be treated. Therefore, the purpose of directly spraying the additive solution to the load to be treated in the inner drum 300 is achieved. At the same time, through the above setting, the washing machine provided with the additive feeding device 100 can realize that the additive solution formed by mixing the additive with a small amount of water in the water supply channel 1 is directly sprayed to the load to be treated in the inner drum 300. Therefore, the utilization rate of the added additive is significantly improved.

[0109] As shown in Figure 4 and Figures 9 to 13 In the embodiment, the water inlet part 514 of the spray pipe 51 of the nozzle structure is connected with the outlet 82 of the water supply channel through the conduit 600. The water outlet end of the conduit 600 is inserted and fixed with the water inlet part 514 of the spray pipe 51. The radial protruding stopper rib 513 on the outer wall of the water inlet part 514 is used to limit the end of the conduit 600, so as to realize the insertion and positioning between the conduit 600 and the spray pipe 51. The insertion can be reliable, and the mutual separation of the two can be avoided. Of course, the stopper rib 513 on the water inlet part 514 of the spray pipe 51 can also be provided in other structures, for example: a pipe clamp. The pipe clamp is arranged on the outer wall of the water inlet part 514, and the outer wall of the water outlet end of the conduit 600 inserted into the outer periphery of the water inlet part 514 is clamped and fixed, so as to realize the fixed connection between the conduit 600 and the spray pipe 51.

[0110] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, 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 scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above-mentioned embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. An additive dispensing device comprising: a water supply channel; a dispensing unit for dispensing additive to the water supply channel; characterized in that: the outlet of the water supply channel is connected to a nozzle structure; the nozzle structure comprises a spray pipe, the outlet end of the spray pipe is provided with a spray head, the spray head is provided with a spray outlet, the spray head is provided with a water spraying cavity and a flow channel, the water spraying cavity is connected to the spray outlet, the flow channel guides water in the spray pipe to the water spraying cavity, the flow channel and the water spraying cavity are connected through a connecting flow channel, and the connecting flow channel extends along the tangential direction of the water spraying cavity; the top of the shell of the dispensing device is an upper cover, the water supply channel is arranged inside the upper cover, and the outlet of the water supply channel is exposed on the outer circumferential side of the upper cover; an independent conduit is arranged outside the shell, the inlet end of the conduit is connected to the outlet of the water supply channel, and the outlet end of the conduit is connected to the nozzle structure arranged outside the shell; the additive and water extracted through the water supply channel are sprayed together, and the additive dispensing device sprays and dispenses outwardly through the nozzle without passing through the water box part inside the shell.

2. An additive dosing device according to claim 1, characterized in that The inside of the spray head is provided with an adapter, which is a cylindrical structure with one end open and one end closed, the open end is inserted into the spray outlet of the spray pipe, and the closed end and the end face of the spray head form the water spraying cavity.

3. An additive dosing device according to claim 2, characterized in that The adapter is clamped and installed between the end face of the spray head and the outlet end of the spray pipe.

4. An additive dosing device according to claim 2, characterized in that A groove is arranged at the center of the closed end of the adapter, and the groove and the spray head together form the water spraying cavity; at least one gap is arranged on the outer periphery of the closed end, and the two ends of each gap are connected to the flow channel and the water spraying cavity, respectively, and the gap forms a connecting flow channel connecting the flow channel and the water spraying cavity.

5. An additive dosing device according to claim 4, characterized in that The outer periphery of the closed end of the adapter is connected to the inner wall of the spray head.

6. An additive dosing device according to claim 4, characterized in that The aperture of the connecting flow channel gradually narrows along the direction of water flow.

7. An additive dosing device according to claim 4, characterized in that The water spraying cavity is a chamber that gradually narrows from the outer periphery to the center, the spray head is provided with a spray outlet, the spray outlet is opposite to the center of the water spraying cavity and is arranged along the axis.

8. An additive dosing device according to claim 7, characterized in that The outer periphery of the water spraying cavity is equally spaced with a plurality of strip-shaped gaps, each strip-shaped gap extends along the tangential direction of the corresponding part of the water spraying cavity, and each strip-shaped gap is symmetrically arranged with respect to the center of the circular water spraying cavity.

9. An additive dosing device according to claim 8, characterized in that The spray outlet, the outlet end of the spray pipe and the cylindrical adapter are coaxially arranged.

10. The additive dosing device of claim 2, wherein A through hole is arranged on the side wall of the adapter, and the gap between the inside of the adapter, the through hole and the outer side wall of the adapter and the inner side wall of the spray head together form the flow channel.

11. An additive dosing device according to claim 10, characterized in that The through hole is arranged on the middle side wall of the cylindrical adapter.

12. An additive dosing device according to claim 11, characterized in that A ring-shaped groove is arranged on the outer side wall of the middle part of the cylindrical adapter, and a plurality of through holes are equally spaced in the ring-shaped groove.

13. An additive dosing device according to any one of claims 1 to 12, characterized in that The spray head comprises an end cover, the center of the end cover is provided with a spray outlet; the outer periphery of the end cover is provided with a ring-shaped folded edge which is bent to the side of the spray pipe and extends along the axial direction of the spray pipe, the extension end of the ring-shaped folded edge is sealingly connected to the water outlet end of the spray pipe, and the adapter is installed inside the spray head.

14. An additive dosing device according to claim 13, characterized in that The end of the ring-shaped folded edge is correspondingly attached to the end face of the outlet end of the spray pipe, and the attachment is sealingly connected through a fusion process.

15. An additive dosing device according to claim 14, characterized in that The spray outlet is a circular hole with a radial dimension smaller than the inner diameter of the spray pipe.

16. An additive dosing device according to any one of claims 1 to 12, characterized in that The spray pipe is sequentially divided into a water inlet part, a bending part and a water outlet part along the direction of water flow, the water inlet part and the water outlet part are straight pipes extending along a straight line and bent pipes with the axis changing the extension direction, respectively; the pipe diameter of the water inlet part is greater than or equal to the pipe diameter of the water outlet part.

17. An additive dosing device according to claim 16, wherein At least one radially protruding insertion mounting rib is arranged on the outer wall of the water outlet part of the spray pipe.

18. An additive dosing device according to claim 17, characterized in that The outer wall of the water outlet part is provided with at least two insertion installation ribs protruding radially in opposite directions and in different sections.

19. An additive dosing device according to claim 18, characterized in that The outer wall of the water inlet part is provided with a ring of stop ribs protruding radially, and the stop ribs are located at the joint of the water inlet part and the bending part.

20. An additive dosing device according to any one of claims 1 to 12, characterized in that The water inlet part of the spray pipe of the nozzle structure is connected with the outlet of the water supply channel through a conduit.

21. A washing machine installed with the additive dispensing device according to any one of claims 1 to 20, comprising: The nozzle structure is installed at the cylinder opening of the inner cylinder, and the spray outlet of the nozzle structure faces the inside of the inner cylinder.

22. A laundry machine according to claim 21, characterised in that, The inner cylinder is sleeved in the outer cylinder, the outer cylinder is coaxial with the inner cylinder and has a cylinder opening on the same side, the cylinder opening of the outer cylinder is connected with a window pad protruding outward; the nozzle structure is arranged on the window pad, the spray pipe of the nozzle structure penetrates through the window pad, the spray head is located on the inner circumferential side of the window pad, and the axis of the spray pipe is inclined downward and toward one side of the inside of the inner cylinder of the washing machine.

23. A laundry machine according to claim 22, characterised in that, The nozzle structure is arranged at the top of the annular window pad, and the axis of the spray pipe is in the same plane as the axis of the inner cylinder.

24. A laundry machine according to claim 23, characterised in that, The insertion installation ribs provided on the outer wall of the water outlet part of the spray pipe abut against both sides of the window pad, so that the spray pipe is clamped and installed on the window pad.

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