Roller washing machine

Abstract

The invention provides a roller washing machine, which comprises a roller, and a machine door which can be correspondingly opened and closed is arranged at the opening of the roller; an automatic throwing device is mounted on the machine door; the automatic feeding device comprises a liquid storage cavity for storing a washing additive; the water supply waterway is used for introducing inlet water flow of the roller washing machine in a controllable on-off manner; the automatic feeding mechanism is used for pumping out the washing additive stored in the liquid storage cavity and feeding the washing additive into a roller of the roller washing machine along with the water inlet flow introduced by the water supply way. Through the arrangement, the automatic putting device is additionally arranged on the machine door of the roller washing machine, so that the effect of automatically putting the washing additive into the roller by utilizing the putting device on the machine door of the roller washing machine is realized, and the effect that the automatic putting device arranged on the machine door can automatically put the washing additive into the roller in a plurality of washing procedures is further achieved. And a remarkable technical progress that the pre-contained washing additive is automatically put into the roller is achieved. Meanwhile, the device is simple in structure, remarkable in effect and capable of being popularized and used.

Description

Technical Field

[0001] The invention relates to a drum washing machine belonging to the technical field of household appliances, and in particular to a drum washing machine with an automatic detergent additive delivery device installed on a machine door. Background Art

[0002] At present, with the continuous improvement of living standards, household appliances such as washing machines are gradually being widely used. In order to facilitate washing clothes, etc., washing machines are generally equipped with automatic washing additive delivery devices for delivering washing additives, such as detergents for washing, disinfectants for disinfection, softeners for improving the softness of clothes, etc., so as to improve the washing machine's processing effect on clothes.

[0003] Existing automatic detergent additive dispensing devices are generally installed on the housing of the washing machine, and use the water flow of the washing machine to dispense the extracted detergent additives into the drum of the washing machine; however, when the automatic detergent additive dispensing device is installed on the housing of the washing machine, it needs to occupy a part of the space of the housing, which will affect the overall design of the washing machine.

[0004] In order to solve the above-mentioned problem, some existing technical solutions install detergent additives on the door of the washing machine; in particular, since the door of the drum washing machine is generally arranged on the front side of the machine body, when the user opens the door to the outside and takes out and puts the clothes in the drum, it is convenient to operate the inside of the door, so some solutions set a detergent additive dispensing device on the door.

[0005] However, since the door needs to be installed on the washing machine body in a movable and openable manner, the detergent additive dispensing device installed on the door generally dispenses the injected detergent additive into the drum at one time, rather than an automatic dispensing device that automatically extracts and controls the dispensing of pre-stored detergent additives in multiple times.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a drum washing machine to achieve the purpose of installing an automatic dispensing device on the door of the drum washing machine; at the same time, another purpose of the present invention is to provide a drum washing machine to achieve the purpose of automatically extracting and dispensing pre-stored washing additives by using the dispensing device on the door, and automatically dispensing the pre-stored washing additives in batches in multiple working programs.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] The present invention provides a drum washing machine, comprising a drum, wherein a door which can be opened and closed correspondingly is arranged at the drum mouth; an automatic delivery device is installed on the door; the automatic delivery device comprises: a liquid storage chamber for storing washing additives; a water supply channel for introducing water flow into the drum washing machine in a controllable manner; and an automatic delivery mechanism for extracting the washing additives stored in the liquid storage chamber and delivering the washing additives into the drum of the drum washing machine along with the water flow introduced by the water supply channel.

[0010] Furthermore, a delivery chamber is provided on the machine door; the delivery chamber has a water inlet, and the outlet of the water supply channel is correspondingly connected to the water inlet of the delivery chamber; the delivery chamber has a liquid inlet, and the liquid outlet of the liquid storage chamber is connected to the delivery chamber via an automatic delivery mechanism, and the automatic delivery mechanism is used to controllably extract the washing additives stored in the liquid storage chamber into the delivery chamber; the delivery chamber has a delivery port, which is connected to the drum and is used to deliver the washing additives and / or the incoming water flow in the delivery chamber into the drum.

[0011] Furthermore, the automatic dispensing mechanism includes a pump, the inlet of the pump is connected to the liquid outlet of the liquid storage chamber, and the outlet of the pump is connected to the liquid inlet of the dispensing chamber, and is used to pump the detergent additive contained in the liquid storage chamber into the dispensing chamber by using the suction force generated when the pump is working;

[0012] and / or;

[0013] The automatic dispensing mechanism includes a negative pressure suction structure, which has a negative pressure flow channel inside. A negative pressure port is opened on the negative pressure flow channel. The negative pressure port is connected to the liquid outlet of the liquid storage chamber. The negative pressure flow channel is connected in series to the water supply waterway. It is used to use the incoming water flow flowing through the internal negative pressure flow channel to form a negative pressure at the negative pressure port, and then use the negative pressure to draw the washing additives contained in the liquid storage chamber into the dispensing chamber.

[0014] Furthermore, the automatic dispensing mechanism includes a control valve water circuit, and the liquid outlet of the liquid storage chamber is controllably connected to the liquid inlet of the dispensing chamber through the control valve water circuit, so as to dispense the washing additive in the liquid storage chamber into the dispensing chamber when connected; preferably, a control valve for controlling the on-off of the water circuit is installed on the control valve water circuit, and the control valve is any one or a combination of an electric control valve, a float valve, and a push-open valve.

[0015] Furthermore, the washing machine includes a shell, a drum is installed in the shell, and a clothing delivery opening is provided in the shell corresponding to the drum opening, which is used to form a passage for taking and placing clothes in the drum; a door that can be opened and closed corresponding to the clothing delivery opening is installed on the shell, and the automatic delivery device is installed on the door; preferably, a protrusion protruding toward the inside of the shell is provided on the door, and at least a part of the protrusion extends into the drum opening, the automatic delivery device is installed on the protrusion, and the delivery opening of the delivery cavity of the automatic delivery device is opened toward the inside of the drum.

[0016] Furthermore, a water supply channel is provided on the housing of the washing machine, and a nozzle is provided at the outlet of the water supply channel. The nozzle has a water spray port for spraying water outward, and the water spray port is opened toward the water inlet of the delivery chamber of the automatic delivery device provided on the machine door;

[0017] Preferably, the water inlet of the delivery chamber is vertically arranged upward; when the machine door is in a closed position, the nozzle is located vertically above the water inlet of the delivery chamber, and the water outlet is located directly below the nozzle, coaxially arranged with the water inlet of the delivery chamber and vertically opened downward;

[0018] Further preferably, a control valve for controlling the on-off of the water supply channel is provided on the water supply channel.

[0019] Furthermore, the protrusion on the machine door is made of a transparent material, and at least a portion of the protrusion is staggered with the automatic dispensing device, so that the user can observe the inside of the drum from the staggered portion.

[0020] Furthermore, a filling port is provided at the top of the liquid storage chamber for users to inject detergent additives into the liquid storage chamber; the liquid outlet of the liquid storage chamber is located at the bottom of the chamber and is connected to the delivery chamber via an automatic delivery mechanism. Preferably, an openable and closable cover is installed at the filling port of the liquid storage chamber.

[0021] Furthermore, a siphon structure is provided at the delivery port of the delivery chamber for intercepting and mixing the washing additives flowing into the delivery chamber with the incoming water flow to form a washing additive mixed liquid, and delivering the formed washing additive mixed liquid into the drum along with the incoming water flow.

[0022] Furthermore, the siphon tube structure includes a siphon tube, which is arranged at the bottom delivery port of the delivery chamber and extends vertically into the delivery chamber and upward; a siphon cap, which is buckled on the top of the siphon tube and has a sleeve portion extending downward and sleeved on the periphery of the siphon tube; a first set height difference is provided between the bottom end of the sleeve portion of the siphon cap and the bottom wall of the delivery chamber, and a second set height difference is provided between the top of the siphon cap and the top of the siphon tube, so as to trigger the siphon effect when the liquid level in the liquid storage chamber reaches the height of the top of the siphon tube, and the washing additive mixture in the liquid storage chamber flows along the gap between the siphon cap and the siphon tube and the internal flow channel of the siphon tube to the delivery port of the delivery chamber.

[0023] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0024] Through the above-mentioned arrangement, an automatic dispensing device is added to the door of the drum washing machine to achieve the effect of automatically dispensing detergent additives into the drum using the dispensing device on the door of the drum washing machine, thereby achieving a significant technical progress in that the automatic dispensing device on the door can automatically dispense pre-placed detergent additives into the drum in multiple washing programs.

[0025] At the same time, the present invention has a simple structure and significant effect, and is suitable for popularization and application.

[0026] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0028] Figure 1 Schematic diagram of the structure of a drum washing machine according to an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of an automatic additive delivery device provided in an embodiment of the present invention;

[0030] Figure 3 An exploded view of an automatic additive delivery device provided in an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the structure inside the lower housing provided by an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of the positional relationship between the locking rod and the sliding slot provided in an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of the structure of a slide provided in an embodiment of the present invention;

[0034] Figure 7 A schematic diagram of the structure of a floating switch provided by an embodiment of the present invention;

[0035] Figure 8 A schematic diagram of the structure of an automatic delivery device provided by an embodiment of the present invention from one perspective;

[0036] Fig. 9 for Figure 8 Cross-section at AA;

[0037] Fig.10 A schematic diagram of the structure of an automatic delivery device provided by an embodiment of the present invention;

[0038] Fig.11 A structural schematic diagram of an automatic delivery device provided by an embodiment of the present invention from one perspective;

[0039] Fig.12 An exploded view of an automatic delivery device provided by an embodiment of the present invention;

[0040] Fig.13 A schematic structural diagram of the automatic delivery device provided by an embodiment of the present invention from another perspective;

[0041] Fig.14 for Fig.13 Cross-section at BB.

[0042] Icons: 100-automatic dispensing device; 101-automatic dispensing mechanism; 102-water supply waterway; 103-sprinkler; 104-control valve; 200-door; 300-housing; 400-drum; 2-push-type switch; 1-housing; 11-upper housing; 111-water inlet; 112-adding port; 113-liquid outlet; 114-liquid storage chamber; 12-lower housing; 21-push-type switch; 211-push rod; 2111-chute; 2111a-first section of the chute; 2111b-second section of the chute; 21 11c-third section groove; 2112-locking groove; 2113-conversion cavity; 2114-convex rib; 2115-recessed portion; 212-reset spring; 213-convex portion; 2131-assembly through hole; 2132-strip slideway; 2133-convex portion; 214-mounting seat; 215-locking rod; 2151-locking section; 216-spring; 2161-first bending portion; 2162-second bending portion; 217-positioning hole; 22-floating switch; 221-assembly portion; 2211-slider; 222 - switch part; 2221- groove part; 2222- blocking part; 23- torsion spring; 3- siphon structure; 4- delivery shell; 41- delivery chamber; 411- delivery port; 412- water inlet; 413- liquid inlet; 5- top cover; 51- guide part; 511- annular limit part; 52- upper protrusion; 53- lower protrusion; 121- delivery port; 31- float valve 2; 414- float valve 1; 415- check valve; 54- protrusion; 55- connecting pipe; 56- delivery pipe; 6- negative pressure generator; 61- negative pressure port ; 62-water inlet; 63-negative pressure pipe; 64-water outlet; 65-retaining rib; 7-float valve; 8-water storage pipe; 81-water storage chamber; 811-narrowing section; 9-overflow pipe; 91-overflow chamber; 92-overflow port; 10-storage pipe; 101-first section chamber; 102-second section chamber; 103-accommodating chamber; 104-water hole; 105-drainage port; 106-pressure relief valve; 1061-valve core; 1062-reset spring; 1063-butt protrusion; 107-annular dividing rib; 108-guide rib.

[0043] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0045] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] like Figure 1 As shown, a drum washing machine is provided in an embodiment of the present invention, including a drum 400, wherein a door 200 which can be opened and closed correspondingly is provided at the drum mouth; an automatic dispensing device 100 is installed on the door 200; the automatic dispensing device 100 includes a liquid storage chamber 114 for storing washing additives; a water supply circuit 102 for introducing water flow into the drum washing machine in a controllable manner; and an automatic dispensing mechanism 101 for extracting the washing additives stored in the liquid storage chamber 114 and dispensing them into the drum 400 of the drum washing machine along with the water flow introduced by the water supply circuit 102.

[0048] Through the above-mentioned arrangement, an automatic dispensing device is added to the door of the drum washing machine to achieve the effect of automatically dispensing detergent additives into the drum using the dispensing device on the door of the drum washing machine, thereby achieving a significant technical progress in that the automatic dispensing device on the door can automatically dispense pre-placed detergent additives into the drum in multiple washing programs.

[0049] In the embodiment of the present invention, the automatic dispensing device 100 may be any structure in the prior art that can realize the automatic dispensing function of washing additives in batches and in fixed quantities; for example: the automatic dispensing device described in the following embodiment 1 or 2.

[0050] In the embodiment of the present invention, a delivery chamber 41 is provided on the machine door 200; the delivery chamber 41 has a water inlet 412, and the outlet of the water supply waterway 102 is correspondingly communicated with the water inlet 412 of the delivery chamber 41; the delivery chamber 41 has a liquid inlet 413, and the liquid outlet 113 of the liquid storage chamber 114 is connected to the delivery chamber 41 via an automatic delivery mechanism 101, and the automatic delivery mechanism 101 is used to controllably extract the washing additive stored in the liquid storage chamber 114 into the delivery chamber 41; the delivery chamber 41 has a delivery port 411, and the delivery port 411 is communicated with the drum 400, and is used to deliver the washing additive and / or the incoming water flow in the delivery chamber 41 into the drum 400.

[0051] In the embodiment of the present invention, the automatic dispensing mechanism 101 can be any existing structure that can pump the detergent additive contained in the liquid storage chamber 114 into the dispensing chamber 41, for example:

[0052] The automatic delivery mechanism 101 includes:

[0053] A pump, the inlet of the pump is connected to the liquid outlet 113 of the liquid storage chamber 114, and the outlet of the pump is connected to the liquid inlet 413 of the delivery chamber 41, and is used to pump the detergent additive contained in the liquid storage chamber 114 into the delivery chamber 41 by using the suction force generated when the pump is working;

[0054] Also for example:

[0055] The automatic delivery mechanism 101 includes:

[0056] A negative pressure suction structure has a negative pressure flow channel inside, a negative pressure port is opened on the negative pressure flow channel, the negative pressure port is connected to the liquid outlet 113 of the liquid storage chamber 114, and the negative pressure flow channel is connected in series to the water supply waterway 102, and is used to use the incoming water flow flowing through the internal negative pressure flow channel to form a negative pressure at the negative pressure port, and then use the negative pressure to draw the washing additives contained in the liquid storage chamber 114 into the delivery chamber 41.

[0057] Another example:

[0058] Automatic delivery mechanisms include:

[0059] The control valve water circuit is a water circuit installed with a control valve; the liquid outlet 113 of the liquid storage chamber 114 is controllably connected to the liquid inlet 413 of the delivery chamber 41 via the water circuit, and is used to deliver the washing additives in the liquid storage chamber 114 into the delivery chamber 41 when connected; preferably, a control valve for controlling the on-off of the water circuit is installed on the water circuit of the control valve water circuit, and the control valve can be any existing valve body assembly, for example: any one or a combination of an electric control valve, a float valve, a push valve, etc.

[0060] Of course, the automatic detergent additive dispensing device 100 in the embodiment of the present invention may also adopt the structure of the automatic dispensing device described in the following embodiment 1 or 2.

[0061] In the embodiment of the present invention, the washing machine includes a housing 300, a drum 400 is installed in the housing 300, and a clothing delivery opening is provided at the housing 300 corresponding to the drum opening of the drum 400, which is used to form a passage for taking and placing clothing in the drum 400; generally, an outer drum is mounted outside the drum, the drum opening of the outer drum is opened coaxially and in the same direction as the drum opening, and a tubular, elastically stretchable window pad is connected between the drum opening of the outer drum and the clothing delivery opening to form a passage for taking and placing clothing; a machine door 200 that can be opened and closed corresponding to the clothing delivery opening is installed on the housing 300, and the automatic delivery device 100 is installed on the machine door 200. Preferably, a protrusion protruding toward the inside of the housing is provided on the machine door 200, and at least part of the protrusion extends into the drum opening of the drum 400, and the automatic delivery device 100 is installed on the protrusion, and the delivery opening 411 of the delivery chamber 41 of the automatic delivery device 100 is opened toward the inside of the drum 400, so that the delivered washing additives and / or the incoming water flow directly flow into the drum 400 of the washing machine.

[0062] In the embodiment of the present invention, a water supply circuit 102 is provided on the housing 300 of the washing machine, and a nozzle 103 is provided at the outlet of the water supply circuit 102, and the nozzle is installed on the housing 300 of the washing machine; the nozzle 103 has a water spray port for spraying water outward, and the water spray port is opened toward the water inlet 412 of the delivery chamber 41 of the automatic delivery device 100 provided on the machine door 200; preferably, the water inlet 412 of the delivery chamber 41 is vertically arranged upward; when the machine door 200 is in a closed position, the nozzle 103 is located vertically above the water inlet 412 of the delivery chamber 41, and the water spray port 41 is located directly below the nozzle 103, is coaxially arranged with the water inlet 412 of the delivery chamber 41 and is vertically opened downward; further preferably, a control valve 104 for controlling the on-off of the water circuit is provided on the water supply circuit 102.

[0063] In the embodiment of the present invention, the protrusion provided on the machine door 200 is made of a transparent material, and at least a portion of the protrusion is staggered with the automatic dispensing device 100 so that the user can observe the interior of the drum 400 from the staggered portion.

[0064] In the embodiment of the present invention, a filling port 112 is provided at the top of the liquid storage chamber 114 for the user to inject washing additives into the liquid storage chamber 114 ; a liquid outlet 113 of the liquid storage chamber 114 is located at the bottom of the chamber and is connected to the delivery chamber 41 via an automatic delivery mechanism 101 .

[0065] In the embodiment of the present invention, a siphon structure 3 is provided at the delivery port 411 of the delivery chamber 41 for intercepting and mixing the washing additives flowing into the delivery chamber 41 with the incoming water flow to form a washing additive mixed liquid, and delivering the formed washing additive mixed liquid into the drum 400 along with the incoming water flow.

[0066] In the embodiment of the present invention, the siphon tube structure 3 includes a siphon tube, which is arranged at the bottom delivery port 411 of the delivery chamber 41 and extends vertically upward into the delivery chamber 411; a siphon cap, which is buckled on the top of the siphon tube and has a sleeve portion extending downward and sleeved on the periphery of the siphon tube; a first set height difference is provided between the bottom end of the sleeve portion of the siphon cap and the bottom wall of the delivery chamber 41, and a second set height difference is provided between the top of the siphon cap and the top of the siphon tube, so as to trigger the siphon effect when the liquid level in the liquid storage chamber 114 reaches the height of the top of the siphon tube, and the washing additive mixture in the liquid storage chamber 114 flows to the delivery port 411 of the delivery chamber 41 along the gap between the siphon cap and the siphon tube and the internal flow channel of the siphon tube.

[0067] Embodiment 1

[0068] like Figure 2-9 As shown, the present invention provides an automatic additive delivery device, wherein a liquid storage chamber 114 and a delivery chamber 41 are provided in the automatic delivery device 100, a liquid storage chamber 114 is provided with a liquid outlet 113 communicating with the delivery chamber 41, a water inlet 412 is provided on the delivery chamber 41, and a push-type switch 2 for opening and closing the liquid outlet 113 and the water inlet 412 is provided in the delivery chamber 412.

[0069] In the embodiment of the present invention, a push-pop switch 2 is provided in the delivery chamber 412. The push-pop switch 2 can open the water inlet 412 and the liquid outlet 113 at the same time under the action of the water pressure, thereby realizing the automatic opening of the liquid outlet 113, so that the additive in the liquid storage chamber 114 can automatically flow into the delivery chamber 412 for delivery, avoiding the need to additionally provide a suction pump as a power source to extract the additive in the liquid storage chamber 114 into the delivery chamber 412 for delivery, thereby reducing energy consumption and saving production and maintenance costs.

[0070] The additive delivery device 100 can be used in washing machines, dishwashers, etc. A delivery port 411 is provided on a delivery cavity 412, and the delivery port 411 is used to deliver the additive in the delivery cavity 412. The washing machine includes a shell 300, and a drum 400 for holding water is provided in the shell 300. The detergent includes an inner tank, and the delivery cavity 412 is connected to the drum 400 or to the inner tank through the delivery port 411.

[0071] Taking the liquid storage chamber 114 and the delivery chamber 412 as an example, the liquid outlet 113 is arranged at the bottom of the liquid storage chamber 114, and the water inlet 412 is arranged at the top of the delivery chamber 412, specifically, the additive delivery device includes a shell 1, the shell 1 includes an upper shell 11 and a lower shell 12 arranged up and down, the delivery chamber 41 is formed in the lower shell 12, and the upper shell 11 is divided into a left chamber and a right chamber, the right chamber forms the liquid storage chamber 114, the left chamber forms the water inlet chamber, the top of the left chamber is provided with a water inlet 111, and the water inlet 412 of the delivery chamber is connected to the water supply waterway 10 through the water inlet 111. 2, the top of the right chamber is provided with an addition port 112 for adding additives and a liquid outlet 113 for the additives to enter the delivery chamber 41, so that the liquid storage chamber 114 and the delivery chamber 41 are arranged up and down, which is conducive to the additives in the liquid storage chamber 114 flowing into the delivery chamber 41; by dividing the inside of the housing 1 into a plurality of chambers, while realizing the automatic delivery of additives, the space inside the housing 1 can be reasonably utilized, so that the structure of the automatic delivery device is compact and the occupation of the external space is reduced; the additives can be detergents for washing, softeners for rinsing, disinfectants for disinfection, etc.;

[0072] Furthermore, a delivery shell 4 is provided in the lower shell 12, and a delivery cavity 41 is formed inside the delivery shell 4. The top of the delivery shell 4 is open, and a top cover 5 for closing the opening is provided at the open position. The top cover 5 extends in the left and right directions and can cover the bottom of the left chamber and the bottom of the right chamber. The water inlet 412 of the delivery cavity and the liquid inlet 413 of the delivery cavity are integrated on the top cover; an outlet is provided at the bottom of the lower shell 12, and the delivery port 411 delivers the additive in the delivery cavity 41 into the lower shell 12, and enters the washing machine through the outlet of the lower shell 12, and the washing water that has not entered the delivery cavity can enter the washing machine from the outlet of the lower shell 12.

[0073] like Figure 4 and Fig. 9 As shown, in the embodiment of the present invention, the push-pop switch 2 includes a push-pop switch 21 and a floating switch 22. The push-pop switch 21 reciprocates in the direction of water inlet relative to the water inlet 412, and the floating switch 22 reciprocates in the direction of liquid outlet relative to the liquid outlet 113. The floating switch 22 switches between being linked with the push-pop switch 21 and moving relative to the push-pop switch 21.

[0074] In the embodiment of the present invention, the push switch 21 opens the water inlet 412 under the action of the water pressure of the inlet water, and closes the water inlet 412 after the water pressure of the inlet water disappears. The push switch 21 can be pushed by the water pressure of the inlet water to drive the floating switch 22 to move, so as to open the liquid outlet 113. The floating switch 22 moves under the action of the buoyancy of the liquid to close the liquid outlet 113. The push switch 21 and the floating switch 22 can realize the automatic opening and closing of the liquid outlet 113 and the automatic opening and closing of the water inlet 412.

[0075] The linkage between the floating switch 22 and the push switch 21 can realize that the push switch 21 is pushed by the water pressure of the incoming water to drive the floating switch 22 to move, so that the liquid outlet 113 is opened; the relative movement of the floating switch 22 and the push switch 21 can realize that the floating switch 22 moves independently under the action of the buoyancy of the liquid, so that the opened liquid outlet 113 is closed; when the water inlet 412 is arranged at the top of the delivery cavity 411 and the liquid outlet 113 is arranged at the top of the liquid storage cavity, the liquid outlet direction and the water inlet direction are the up and down directions.

[0076] Furthermore, the push switch 21 includes a push rod 211 and a return spring 212, the two ends of the return spring 212 are respectively connected to the first end of the push rod 211 and the side wall of the delivery chamber 41, the second end of the push rod 211 is a blocking end for blocking the water inlet, and the floating switch 22 is arranged on the outer periphery of the push rod 211 and is slidably connected to the outer periphery of the push rod 211 along the axial direction of the push rod 211.

[0077] Taking the upward and downward extension of the ejector rod as an example, the ejector rod 211 moves downward under the push of the water pressure to open the water inlet 412, and moves upward to close the water inlet 412 after the water pressure disappears. The reset spring 212 provides a reset force for the ejector rod 211; the bottom of the ejector rod 211 is connected to the bottom of the delivery chamber 41 via the reset spring 212, and the floating switch 22 and the ejector rod 211 are linked in the upward and downward directions, or move relative to each other.

[0078] Furthermore, the push switch 21 also includes a locking rod 215, which has a locking section. An axially extending slide groove 2111 is provided on the outer periphery of the push rod 211, and a locking groove 2112 is provided in the slide groove 2111. The locking section 2151 is slidably connected to the slide groove 2111. When the locking section 2151 slides into place in the slide groove 2111, it is inserted into the locking groove 2112 to lock the push rod 211.

[0079] Taking the example of the locking rod 215 extending up and down, the locking section 2151 extending left and right, and the slide groove 2111 extending up and down, the locking section 2151 extends into the slide groove 2111 and moves up and down in the slide groove 2111, the floating switch 22 moves downward with the ejector rod 211 until the locking section 2151 is inserted into the locking groove 2112, and the ejector rod 211 moves upward to reset after the locking section 2151 is separated from the locking groove 2112.

[0080] The locking rod 215 also includes a connecting section and a mounting section extending up and down. The mounting section and the locking section 2151 are respectively arranged at both ends of the connecting section. A mounting seat 214 is arranged on the side wall of the delivery cavity 41, and the mounting section is installed on the mounting seat 214.

[0081] The push-to-pop switch 21 further includes a spring sheet 216 extending upward and downward, the top of the spring sheet 216 is bent upward to form a first bending portion 2161 in the shape of a groove, the notch of the first bending portion 2161 is arranged to face away from the slide slot 2111, the left groove side wall and the right groove side wall of the first bending portion 2161 located on the left and right sides of the notch are respectively provided with openings, a positioning hole 217 is set on the lower groove side wall of the first bending portion 2161, the top of the connecting section and the mounting section pass through the positioning hole 217, and the mounting section and the first bending portion are connected to each other. The upper groove side walls of 2161 are parallel, the mounting section is abutted against the upper groove side walls of the first bending portion 2161, and the upper groove side walls of the first bending portion 2161 are arranged on the mounting seat 214; the positioning hole 217 is used to position the connecting section to prevent the connecting section from shifting during movement, and the upper groove side walls of the first bending portion 2161 are used to limit the mounting section to prevent the locking rod 215 from moving excessively upward during movement, and to ensure that the locking rod 215 remains in place and does not shift during movement.

[0082] The bottom of the spring piece 216 is bent downward to form a groove-shaped second bending portion 2162. The notch of the second bending portion 2162 is set toward the slide slot, and the notch of the second bending portion 2162 is set upward. The left groove side wall and the right groove side wall of the second bending portion 2162 on the left and right sides of the notch are respectively opened. The bottom of the connecting section is against the front groove side wall of the second bending portion 2162 located at the front side of the notch. The second bending portion 2162 can adjust the position of the locking segment 2151 in the front-to-back direction, so that the locking segment 2151 can periodically move in the first groove 2111a, the second groove 2111b, the locking groove 2112 and the third groove 2111c in sequence.

[0083] like Figure 5 and Figure 6 As shown, the slide groove 2111 includes a first groove section 2111a and a second groove section 2111b and a third groove section 2111c formed by the bifurcation of the first groove section 2111a. A conversion cavity 2113 is formed at the intersection of the first groove section 2111a, the second groove section 2111b and the third groove section 2111c. A convex rib 2114 is provided in the conversion cavity 2113. The convex rib 2114 is provided with a recessed portion 2115 which is recessed toward the first groove section 2111a. The recessed portion 2115 cooperates with the inner wall of the conversion cavity 2113 to form a locking groove 2112. The locking section 2151 moves periodically in the first groove section 2114, the second groove section 2111b, the locking groove 2112 and the third groove section 2111c in turn.

[0084] Taking the push rod 211 extending up and down as an example, the second section groove 2111b and the third section groove 2111c are located at the upper part of the first section groove 2111a, and the convex rib 2114 is recessed downward to form a recessed portion 2115, and the recessed portion 2115 cooperates with the inner wall of the conversion cavity 2113 above the recessed portion 2115 to form a locking groove 2112.

[0085] It should be noted that the position of the locking section 2151 itself does not change during the movement of the ejector rod 211 , but the relative position of the locking section 2151 relative to the moving ejector rod 211 will change.

[0086] After the liquid outlet 113 is opened, liquid continuously enters the delivery chamber 41. As the floating switch 22 follows the continuous rise of the liquid level in the delivery chamber 41 until the liquid outlet 113 is closed, the amount of additive entering the delivery chamber 41 from the liquid storage chamber 114 can be obtained based on the time difference between the opening and closing of the liquid outlet 113, so that the delivery chamber 41 can be used as a constant volume chamber, thereby knowing the amount of additive that the automatic delivery device delivers to the washing machine or dishwasher at one time.

[0087] like Figure 4 and Fig. 9 As shown, further, a cylindrical guide portion 51 protruding out of the delivery chamber 41 is provided on the delivery chamber 41, and a water inlet and a water outlet are respectively provided at the top and bottom ends of the guide portion 51. The inner circumference of the guide portion 51 radially protrudes to form an annular limiting portion 511. The second end of the ejector rod 211 extends into the guide portion 51 through the water outlet of the guide portion 51 and abuts against the annular limiting portion 511, thereby blocking the opening formed around the inner circumference of the annular limiting portion 511.

[0088] Taking the upward and downward extension of the ejector rod as an example, specifically, the top cover 5 protrudes upward to form a cylindrical guide portion 51, the water outlet of the guide portion 51 coincides with the water inlet of the delivery chamber 41, and the top of the ejector rod 211 extends into the guide portion 51 through the water outlet at the bottom end of the guide portion 51 and abuts against the bottom of the annular limiting portion 511, and blocks the opening of the annular limiting portion 511, thereby blocking the water inlet 412 of the delivery chamber.

[0089] When the liquid outlet 113 is in the closed state, the bottom of the annular limiting portion 511 abuts against the top of the ejector rod 211 and blocks the opening of the annular limiting portion 511, so that when the water inlet is closed, the washing water entering the guide portion 51 can completely contact the ejector rod 211, providing a large thrust for the ejector rod 211;

[0090] The external washing water enters the guide part 51 from the water inlet at the top of the guide part 51, passes through the annular limiter 511 and contacts the top of the push rod 211, and impacts the push rod 211 downward, causing the push rod 211 to move downward. The annular limiter 511 separates from the push rod 211, and the water inlet 412 of the delivery chamber is opened. The washing water enters the delivery chamber 41 from the water outlet at the bottom of the guide part 51, and the liquid outlet 113 is switched from the closed state to the open state.

[0091] The ejector rod 211 moves upward in the guide portion 51 until it abuts against the bottom of the annular limiting portion 511 . The annular limiting portion 511 can block the ejector rod moving upward to prevent the ejector rod 211 from moving upward too much.

[0092] Specifically, the guide portion 51 is arranged in the left chamber, and the water inlet at the top of the guide portion 51 is arranged opposite to the main water inlet 111 at the top of the left chamber, so that the washing water entering the left chamber can enter the guide portion 51 with an increased impact force, so that the push rod 211 can drive the floating switch 22 to move downward, and the guide portion 51 can gather the washing water entering the left chamber, so that the washing water can accurately impact the push rod 211; and, because the top of the push rod 211 extends into the guide portion 51 through the opening at the bottom end of the guide portion 51, the push rod 211 can move up and down in the guide portion 51 under the guidance of the guide portion 51, thereby improving the accuracy of opening or closing the liquid outlet 113; the top of the push rod 211 always moves up and down in the guide portion 51.

[0093] More specifically, the guide portion 51 above the annular limiting portion 511 is gradually narrowed from top to bottom, which can increase the impact pressure of the washing water entering the guide portion 51 below the annular limiting portion 511 , thereby increasing the impact on the push rod 211 .

[0094] like Figure 4 and Figure 7 As shown, in the embodiment of the present invention, the outer periphery of the ejector rod 211 is provided with a radially protruding protrusion 213, the protrusion 213 is provided with an assembly through hole 2131, the axis line of the assembly through hole 2131 is parallel to the axis line of the ejector rod 211, the floating switch 22 is a columnar structure, the floating switch 22 is embedded in the assembly through hole 2131, and is slidably connected with the inner periphery of the assembly through hole 2131, and the end wall of the floating switch 22 is provided with a blocking portion 2222 for blocking the liquid outlet 113, and the blocking portion 2222 is exposed outside the assembly through hole 2131.

[0095] Taking the push rod 211 extending up and down as an example, the axis line of the assembly hole 2 extends up and down, and the floating switch 22 and the assembly hole 2131 slide in the up and down directions, so that the floating switch 22 and the assembly hole 2131 generate relative movement in the up and down directions, and the blocking portion 2222 is arranged on the top end wall of the floating switch 22.

[0096] The assembly through hole 2131 is a circular hole, and the floating switch 22 is a cylindrical structure. The floating switch 22 is coaxially embedded in the assembly through hole 2131. The arrangement of the assembly through hole 2131 enables the floating switch 22 to move up and down with the ejector rod 211, and the floating switch 22 can generate relative movement with the ejector rod 211 in the up and down directions.

[0097] Specifically, the blocking portion 2222 is a cylindrical structure coaxial with the floating switch 22, and a delivery chamber liquid inlet 413 is provided on the top cover 5, which is located below the liquid storage chamber liquid outlet 113 and overlaps with the liquid storage chamber liquid outlet 113. The radial dimension of the top end wall of the blocking portion 2222 is greater than the radial dimension of the delivery chamber liquid inlet 41, and the top end wall of the blocking portion 2222 closes the delivery chamber liquid inlet 41 or opens the delivery chamber liquid inlet 41.

[0098] More specifically, an upper protrusion 52 is provided on the top of the top cover 5, a through hole is provided on the top cover 5, and a lower protrusion 53 is provided on the bottom of the top cover 5. The upper protrusion 52 is hollow inside to form an upper flow channel, and the lower protrusion 53 is hollow inside to form a lower flow channel. The upper flow channel, the through hole and the lower flow channel are sequentially connected to form the liquid inlet 41 of the delivery chamber, and the top end wall of the blocking portion 2222 blocks the bottom end of the liquid inlet 41 of the delivery chamber.

[0099] The radial dimension of the top end wall of the sealing portion 2222 is greater than the radial dimension of the bottom end of the liquid inlet 41 of the delivery chamber, which can increase the sealing area of ​​the top end wall of the sealing portion 2222 to the bottom end of the liquid inlet 41 of the delivery chamber, and increase the sealing between the sealing portion 2222 and the bottom end of the liquid inlet 41 of the delivery chamber.

[0100] Furthermore, the outer periphery of the floating switch 22 radially protrudes to form a slider 2211, and a strip slide 2132 connected to the assembly through hole 2131 is provided on the peripheral wall thereof, wherein the strip slide 2132 has one closed end and the other open end, and the slider 2211 enters the strip slide 2132 through the open end of the strip slide 2132, and passes through the strip slide 2132 to be slidably connected with the strip slide 2132.

[0101] Taking the push rod extending up and down as an example, the top of the strip slideway is an open end, and the slider 2211 can slide up and down in the strip slideway 2132;

[0102] The floating switch 22 includes a mounting portion 221 and a switch portion 222. The mounting portion 221 is in a groove shape, and the notch of the mounting portion 221 is arranged upward. The mounting portion 221 and the switch portion 222 are both circular structures. The blocking portion 2222 is coaxially arranged on the top end wall of the switch portion 222. The lower portion of the blocking portion 2222 is embedded in the groove of the mounting portion 221. The top of the switch portion 222 radially protrudes to form a first abutting portion. The free end of the first abutting portion axially protrudes downward to form a second abutting portion. The first abutting portion, the second abutting portion and the outer periphery of the switch portion 222 form a groove portion 2221. The top of the mounting portion 221 is embedded in the groove portion 2221.

[0103] The assembly portion 221 and the switch portion 222 are both embedded in the assembly through hole 2131 , and the slider 2211 slides on the strip slideway 2132 along the up and down directions, which can guide the relative movement between the assembly through hole 2131 and the assembly portion 221 .

[0104] Furthermore, a circumferentially extending torsion spring 23 is provided on the outer peripheral wall of the assembly through hole 2131, and the middle part of the torsion spring 23 is sleeved on the outer periphery of the slider 2211 passing through the strip slide 2132. The outer peripheral wall of the assembly through hole 2131 is respectively provided with protrusions 2133 on both sides of the strip slide 2132, and the two sides of the torsion spring 23 are respectively sleeved on the outer periphery of the two protrusions 2133. The torsion spring 23 provides torque for the sealing part 2222 to close the liquid outlet 113 and provides torque for resetting the push rod.

[0105] The delivery method of the automatic delivery device of this application is as follows:

[0106] Taking the push rod extending up and down as an example, the water supply waterway 102 is connected, the water supply waterway 102 flows into the guide part 51, the water inlet 412 is opened, and the water pressure of the washing water impacts the push rod 211 downward, so that the push rod 211 moves downward, the return spring 212 is compressed, and the push rod 211 moves downward to drive the floating switch 22 to move downward, and at the same time, the locking section 2151 moves upward from the first section groove 2111a to the second section groove 2111b, so that the liquid outlet 113 is opened;

[0107] When the liquid outlet 113 is opened, the washing water stops flowing into the guide part, so that the push rod 211 moves upward, and the reset spring 212 stretches but does not reset. The push rod 211 moves upward, driving the floating switch 22 to move upward, and at the same time, the locking section 2151 moves downward from the first section groove 2111a to the locking groove 2112 and is locked in the locking groove 2112, so that the water inlet 412 and the liquid outlet 113 are in an open state for a period of time.

[0108] When the water inlet 412 and the liquid outlet 113 are in the open state, the additive in the liquid storage chamber 114 automatically flows into the delivery chamber 41 by its own gravity. As the liquid level in the delivery chamber 41 rises, the buoyancy of the liquid increases continuously, causing the float switch 22 to float up, and the float switch 22 moves upward until the float switch 22 reaches the position of the liquid outlet 113, closing the liquid outlet 113. During this process, the position of the push rod 211 remains unchanged, the state of the reset spring 212 remains unchanged, and the water inlet 412 is in the open state. As the float switch 22 moves upward, relative movement occurs between the push rod 211 and the float switch 22, and the torsion spring 23 stretches.

[0109] After the liquid outlet 113 is closed, the washing water enters the guide portion 51, and the water pressure of the washing water impacts the push rod 211 downward, causing the push rod 211 to move downward, the return spring 212 is compressed, and the push rod 211 moves downward to cause the locking section 2151 to disengage from the locking groove 2112, and the locking section 2151 enters the second groove 2111b. In this process, the float switch 22 is always closed by the large buoyancy of the liquid. As the push rod 211 moves downward, the push rod 211 and the float switch 22 generate relative movement again, and the torsion spring 23 continues to extend.

[0110] Washing water continuously flows into the guide portion 51, the washing water continuously impacts the push rod 211, and continuously flows into the delivery chamber 41 to flush the additives. The mixed liquid of washing water and additives is discharged from the delivery port 411 through the siphon structure 3. During the continuous water inflow, the float switch 22 always closes the liquid outlet 113, and the torsion spring 23 is always in an extended state. After the washing water has been flushed for a certain period of time, the washing water stops flowing into the guide portion 51, so that the reset spring 212 and the torsion spring 23 are reset. The reset of the reset spring 212 and the torsion spring 23 drives the push rod 211 to move upward and reset. The reset of the torsion spring 23 drives the float switch 22 to reset, so that the liquid outlet 113 is always in a closed state. The liquid in the delivery chamber 41 is finally siphoned and emptied through the siphon structure 3. In this process, the push rod 211 moves upward and resets, so that the locking section 2151 moves downward from the second section groove 2111b to the first section groove 2111a and resets.

[0111] The automatic dispensing device 100 described in this embodiment can be installed on the door 200 of the drum washing machine, and the dispensing port 411 of the automatic dispensing device is connected to the drum 400 of the drum washing machine to allow the washing additive mixture or water to be dispensed into the drum 400.

[0112] Embodiment 2

[0113] like Figure 10-14 As shown, the present invention provides an automatic delivery device, wherein a liquid storage chamber 114, a delivery chamber 41 and a negative pressure generator 6 are provided in the delivery device 100, a liquid storage chamber 114 is provided with a liquid outlet 113 communicating with the delivery chamber 41, a water outlet 64 and a negative pressure port 61 communicating with the delivery chamber 41 are provided on the negative pressure generator 6, a control valve 1 for opening and closing the liquid outlet 113 due to negative pressure changes and a control valve 2 for opening and closing the negative pressure port 61 due to liquid level changes are provided in the delivery chamber 41, and a water storage chamber 81 which can be connected and disconnected with the outside atmosphere is provided at the water outlet 64.

[0114] In an embodiment of the present invention, a water storage chamber 81 that can be connected and disconnected from the outside atmosphere is provided at the water outlet 64 of the negative pressure generator 6. The water storage chamber 81 can be disconnected from the outside atmosphere when water is taken in to flush the additive in the delivery chamber 41, and is filled with water, so that the water of the negative pressure generator 6 can flow from the negative pressure port 61 into the delivery chamber 41 to flush the additive, thereby realizing that the water for flushing the additive comes from the water of the negative pressure generator 6, avoiding the additional provision of a water inlet pipeline to feed water into the delivery chamber 41 to flush the additive, thereby improving the compactness of the structure of the automatic adding device 100 and reducing the production cost.

[0115] The additive delivery device can be used in washing machines, dishwashers, etc. The washing machine includes a housing 300 and a drum 400 disposed in the housing 300 for holding water. The dishwasher includes an inner tank, and the delivery cavity 41 is connected to the drum or the inner tank.

[0116] Specifically, the additive delivery device includes a shell 1, the shell 1 includes an upper shell 11 and a lower shell 12 arranged up and down, the delivery chamber 41 is formed in the lower shell, the upper shell 11 is divided into a left chamber and a right chamber, the right chamber forms a liquid storage chamber 114, the left chamber forms a water inlet chamber, which is used to feed water into the water inlet 62 of the negative pressure generator 6, the top of the left chamber is provided with a water inlet 111, the water inlet 62 of the negative pressure generator 6 is connected to the water supply pipe 102 through the water inlet 111, and the top of the right chamber is provided with an additive for adding additives The liquid outlet 112 and the liquid outlet 113 of the delivery chamber 41 are connected to realize the vertical arrangement of the liquid storage chamber 114 and the delivery chamber 41, which is conducive to the additive in the liquid storage chamber 114 flowing into the delivery chamber 41; by dividing the interior of the housing 1 into a plurality of chambers, while realizing the automatic delivery of additives, the space inside the housing 1 can be reasonably utilized, so that the structure of the automatic delivery device is compact and the occupation of the external space is reduced; the additive can be a detergent for washing, a softener for rinsing, a disinfectant for disinfection, etc.;

[0117] Furthermore, a delivery shell 4 is provided in the lower shell, and a delivery cavity 41 is formed inside the delivery shell 4. The top of the delivery shell 4 is open, and a top cover 5 for closing the open is provided at the open. A protrusion is provided on the top cover 5, and the protrusion 54 is cylindrical. The liquid outlet 113 of the liquid storage cavity 114 is connected with the delivery cavity 41 through the protrusion 54, and the check valve 415 opens and closes the opening at the lower end of the protrusion 54 to realize the opening and closing of the liquid outlet 113 of the liquid storage cavity 114.

[0118] A siphon structure 3 is also provided in the delivery chamber 41, and the siphon structure 3 has a float valve 31 for controlling the siphon structure 3 to produce a siphon effect; a delivery pipe 56 is connected to the liquid outlet end of the siphon structure 3, and the liquid outlet of the delivery pipe 56 extends to the bottom of the lower shell 12, and the liquid outlet of the delivery pipe 56 forms a delivery port 411 of the delivery chamber 41, and a delivery port 121 is provided at the bottom of the lower shell, and the liquid coming out of the delivery pipe 56 enters the washing machine through the delivery port 121 of the lower shell.

[0119] The first control valve provided in the delivery chamber 41 is a check valve 415 , and the second control valve provided in the delivery chamber 41 is a float valve 414 .

[0120] In an embodiment of the present invention, an overflow chamber 91 is connected to the water storage chamber 81, and an overflow port 92 communicating with the outside atmosphere is provided on the overflow chamber 91. The water inlet 62 and the water outlet 64 of the negative pressure generator 6 are connected through a contraction port. The negative pressure port 61 is provided on the contraction port, and the overflow port 92 is provided higher than the negative pressure port 61. The connection between the water storage chamber 81 and the overflow chamber 91 is provided lower than the negative pressure port 61.

[0121] In an embodiment of the present invention, specifically, the negative pressure generator 6 includes a negative pressure pipe 63 extending in a straight line, and the water inlet 62 and the water outlet 64 of the negative pressure generator 6 are respectively arranged at the two ends of the negative pressure pipe 63, and a water storage pipe 8 forming a water storage chamber 81 is provided at the water outlet 64 of the negative pressure generator 6. One end of the water storage pipe 8 intersects with the water outlet end of the negative pressure pipe 63, and the other end is connected to an overflow pipe 9 parallel to the negative pressure pipe 63 to form an overflow chamber 91. One end of the overflow pipe 9 is communicated with the water storage pipe 8, and the other end is provided with an overflow port 92.

[0122] Taking the negative pressure pipe 63 extending straightly in the up-down direction as an example, the water storage pipe 8 gradually extends obliquely toward the negative pressure pipe 63 from top to bottom, extending to the outer periphery of the water outlet 64 of the negative pressure generator 6, and the overflow pipe 9 extends straightly from top to bottom; during the water intake process of the negative pressure generator 6, the water in the water storage pipe 8 can enter the overflow pipe 9, and the setting of the overflow pipe 9 can prevent the water in the water storage pipe 8 from overflowing outward;

[0123] Furthermore, a storage tube 10 is provided at the intersection of the water storage tube 8 and the negative pressure tube 63, and a accommodating chamber 103 is formed inside the storage tube 10. A float valve 7 is provided in the accommodating chamber 103 for opening and closing the connection between the water storage chamber 81 and the overflow chamber 91 due to changes in the liquid level, and the water outlet 64 of the negative pressure generator 6 is arranged toward the accommodating chamber 103.

[0124] Taking the negative pressure pipe 63 extending in the up-down direction as an example, the storage pipe 10 extends straight from top to bottom, and the negative pressure pipe 63, the storage pipe 10 and the water storage pipe 8 intersect to form a conversion chamber, and the connection between the negative pressure pipe 63 and the water storage pipe 8 is lower than the connection between the water storage pipe 8 and the overflow pipe 9; the float valve 7 is arranged in the accommodating chamber 103, and the float valve 7 can float up with the increase of the water level in the water storage chamber 81, and block the connection between the water storage chamber 81 and the overflow chamber 91 under the action of water pressure, so that the water storage chamber 81 is disconnected from the outside atmosphere and filled with water. When the float valve 7 is in the accommodating chamber 103, the water storage chamber 81 is connected with the overflow chamber 91, so that the water storage chamber 81 is connected with the outside atmosphere;

[0125] Furthermore, the storage tube 10 is coaxially arranged with the negative pressure tube 63 , and the water outlet 64 of the negative pressure generator 6 is arranged toward the accommodating chamber 103 , so that the float valve 7 in the accommodating chamber 103 can be pressed downward by the water pressure of the water inlet of the negative pressure generator 6 .

[0126] Water is first introduced into the negative pressure generator 6. The water entering the negative pressure generator 6 to generate negative pressure continuously enters the water storage chamber 81 from the water outlet 64 of the negative pressure generator 6, so that the water level in the water storage chamber 81 continuously rises, and the water storage chamber 81 is filled with water. During this process, the float valve 7 in the accommodating chamber 103 is pressed downward by the water pressure of the water inflow and does not float up.

[0127] Stop feeding water into the negative pressure generator 6. As the water pressure of the water disappears, the float valve 7 floats to the water surface in the liquid storage chamber 114 under the action of the buoyancy of the water.

[0128] Water is introduced into the negative pressure generator 6 for the second time, and the float valve 7 tightly blocks the connection between the water storage chamber 81 and the overflow chamber 91 under the water pressure of the inflowing water;

[0129] During the floating process of the float valve 7, it first enters the conversion chamber from the accommodating chamber 103, and then enters the water storage chamber 81 from the conversion chamber. The storage tube 10 extends straight from top to bottom to reduce the obstruction to the movement of the float valve 7, and when the storage tube 10 has a drain port 105, it is beneficial to the discharge of water in the water storage tube 8; the water storage tube 8 gradually extends obliquely from top to bottom, which is beneficial to the water pressure of the incoming water to push the float valve 7 upward, so that the float valve 7 tightly blocks the connection between the water storage chamber 81 and the overflow chamber 91, and when the storage tube 10 has a drain port 105, it has a buffering and guiding effect on the falling of the float valve 7, while preventing water from remaining on the side wall of the storage tube 10.

[0130] Since the water storage pipe 8 and the storage pipe 10 extend in different directions, the conversion chamber can convert the moving direction of the float valve 7, so that the float valve 7 can enter the water storage chamber 81 from the accommodating chamber 103 without hindrance, and accurately block the connection between the water storage chamber 81 and the overflow chamber 91.

[0131] To be more specific, the water storage pipe 8 is provided with a narrowing section 811 which gradually shrinks into the overflow chamber 91 and inclines along with the water storage pipe 8 at the connecting point between the water storage chamber 81 and the overflow chamber 91. The inner periphery of the small-sized end of the narrowing section 811 forms an opening communicating with the overflow chamber 91, and the radial dimension of the float valve 7 is smaller than the radial dimension of the opening.

[0132] Specifically, taking the negative pressure tube 63 extending in a straight line in the up and down directions as an example, the contraction section is arranged at the top of the water storage pipe 8, the opening is a circular opening, the float valve 7 is spherical, and the outer periphery of the float valve 7 is against the inner periphery of the opening under the action of the water pressure of the incoming water, so that the float valve 7 blocks the opening; the setting of the narrowing section 811 can increase the contact strength between the outer periphery of the float valve 7 and the opening, and increase the sealing of the float valve 7 and the opening.

[0133] It should be noted that the water in the negative pressure pipe 63 enters the water storage pipe 8 from the conversion chamber, and the negative pressure pipe 63 is filled with water at the same time as the water storage pipe 8 is filled with water;

[0134] The liquid inlet 413 of the delivery chamber 41 is arranged lower than the negative pressure port 61, and a connecting pipe 55 is provided on the top cover 5, one end of the connecting pipe 55 is connected to the negative pressure port 61, and the other end of the connecting pipe 55 is connected to the liquid inlet 413 of the delivery chamber 41; when the negative pressure generator 6 introduces flushing water into the delivery chamber 41, the water inlet of the negative pressure generator 6 can flow into the negative pressure port 61 and the liquid inlet 413 of the delivery chamber 41 in sequence to flush the additive into the delivery chamber 41, so that the liquid inlet 413 of the delivery chamber 41 serves as the water inlet 412 of the delivery chamber 41.

[0135] The delivery chamber 41 is provided with a control valve, which is a second float valve 31. The delivery chamber 41 is provided with a guide chamber for guiding the movement of the second float valve 31. The guide chamber is directly opposite to the liquid inlet 413 of the delivery chamber 41. The second float valve 31 rises due to the buoyancy of the liquid to block the liquid inlet 413 of the delivery chamber 41, thereby blocking the negative pressure port 61.

[0136] When the water storage pipe 8 is filled with water, the delivery chamber 41 is filled with additives. According to the time when the water storage pipe 8 is filled with water, the amount of additives entering the delivery chamber 41 from the liquid storage chamber 114 is obtained, so that the delivery chamber 41 can be used as a constant volume chamber, thereby knowing the amount of additives delivered by the automatic delivery device to the washing machine or dishwasher at one time.

[0137] Furthermore, the retaining rib 65 of the water outlet of the negative pressure tube 63 extends from one end of the water outlet 64 of the negative pressure tube 63 to the other end of the water outlet 64, so that the water outlet 64 of the negative pressure tube 63 is divided into two water outlet areas, preventing the float valve 7 from entering the negative pressure tube 63 from the two water outlet areas. The two water inlet areas can limit the float valve 7 from entering the negative pressure tube 63, so that the float valve 7 enters the water storage chamber 81 from the accommodating chamber 103.

[0138] The negative pressure pipe 63 and the water storage pipe 8 are located in the lower housing, and the water inlet 62 of the negative pressure pipe 63 extends into the left chamber;

[0139] In addition, the negative pressure pipe 63 can be integrally formed with the water storage pipe 8 , and the storage pipe 10 is separately provided with the negative pressure pipe 63 and the water storage pipe 8 .

[0140] In an embodiment of the present invention, the storage tube 10 is coaxially arranged with the negative pressure tube 63, one end of the storage tube 10 is connected with the negative pressure tube 63 and the water storage tube 8, and the other end is provided with a drain port 105, and a pressure relief valve 106 is provided at the drain port 105 for opening and closing the drain port 105 due to changes in water pressure. The pressure relief valve 106 is arranged outside the accommodating chamber 103, and a water hole 104 communicating with the drain port 105 is provided on the accommodating chamber 103, and the float valve 7 opens and closes the water hole 104 due to changes in water pressure.

[0141] like Fig.11 and Fig.14 As shown, in the embodiment of the present invention, the drain outlet 105 is used to discharge the water in the water storage pipe 8 and the negative pressure pipe 63 filled with water into the washing machine; the purpose of providing the pressure relief valve 106 is to open the drain outlet 105 on the one hand to discharge the water in the pipe, and to close the drain outlet 105 on the other hand to prevent the water in the pipe from being discharged from the drain outlet 105 when the float valve 7 blocks the connection between the water storage chamber 81 and the overflow chamber 91.

[0142] Specifically, the inner wall of the storage tube 10 is provided with an annular dividing rib 107 coaxial with the storage tube 10, and the middle opening of the annular dividing rib 107 constitutes a water hole 104. The annular dividing rib 107 divides the storage tube 10 into a first section cavity 101 communicated with the water storage pipe 8 and the negative pressure pipe 63 and a second section cavity 102 provided with a drain outlet 105. The annular dividing rib 107 and the inner periphery of the first section cavity 101 form a accommodating cavity 103, and the pressure relief valve 106 is arranged in the second section cavity 102.

[0143] Taking the negative pressure pipe 63 extending in the up and down directions as an example, the float valve 7 is arranged at the upper part of the annular dividing rib 107, and moves downward under the action of water pressure to block the water hole 104. The pressure relief valve 106 is arranged at the lower part of the annular dividing rib 107, and blocks the drain outlet 105 when the float valve 7 blocks the water hole 104.

[0144] The annular partition cavity gradually inclines from top to bottom into the first cavity 101 and forms a receiving cavity 103 matching the float valve 7 with the inner wall of the first cavity 101;

[0145] The pressure relief valve 106 includes a valve core 1061 that reciprocates axially along the second section cavity 102 and a reset spring 1062 that provides a reset force for the valve core 1061. The reset spring 1062 is sleeved on the outer periphery of the valve core 1061. One end of the reset spring 1062 is connected to the valve core 1061, and the other end is connected to the inner wall of the storage tube 10 at the outer periphery of the drain outlet 105. An abutment protrusion 1063 is provided at one end of the valve core 1061 facing the water hole 104. The abutment protrusion 1063 passes through the water hole 104 and abuts against the float valve 7 to support the float valve 7.

[0146] Furthermore, the bottom of the valve core 1061 is exposed at the drain port 105 , and the storage tube 10 extends out of the lower housing 12 through the injection port 121 , so that the drain port 105 extends out of the lower housing 12 .

[0147] Taking the negative pressure tube 63 extending straight in the up and down directions as an example, the valve core 1061 gradually narrows from top to bottom, the top of the valve core 1061 is the large-sized end of the valve core 1061, and the bottom of the valve core 1061 is the small-sized end of the valve core 1061. The part of the valve core 1061 between the top and the bottom of the valve core 1061 is used to block the drain outlet 105, so that when the valve core 1061 blocks the drain outlet 105, the small-sized end of the valve core 1061 is exposed outside the shell, so that an upward force can be applied to the small-sized end of the valve core 1061, so that the reset spring 1062 is extended and the valve core 1061 is reset.

[0148] Furthermore, the drain outlet 105 is arranged at the bottom of the second section cavity 102, and the bottom of the second section cavity 102 is provided with a cylindrical guide rib 108 coaxial with the drain outlet 105, the lower part of the reset spring 1062 is sleeved on the outer periphery of the cylindrical guide rib 108, the top of the reset spring 1062 is connected to the large-size end of the valve core 1061, and the bottom of the reset spring 1062 is against the end face of the bottom of the second section cavity 102, and the top and bottom of the guide rib 108 are respectively provided with openings, the top opening of the guide rib 108 is for the valve core 1061 to be inserted, and the bottom opening of the guide rib 108 forms the drain outlet 105, and the valve core 1061 moves up and down in the guide rib 108, and when the inner periphery of the valve core 1061 is against the outer periphery of the guide rib 108, the guide rib 108 is blocked, thereby blocking the drain outlet 105.

[0149] Specifically, when water is first introduced into the negative pressure generator 6, the float valve 7 is pressed downward by the water pressure of the water in the accommodating chamber 103, and the float valve 7 is tightly abutted against the inner wall of the accommodating chamber 103 to block the water hole 104. The valve core 1061 drives the float valve 7 to move downward to block the drain port 105, and the return spring 1062 is compressed.

[0150] Stop feeding water into the negative pressure generator 6, the water pressure of the water disappears, the float valve 7 floats to the water surface of the water storage chamber 81 under the action of buoyancy, the reset spring 1062 stretches, the valve core 1061 resets, and the drain port 105 is opened. During this process, a small amount of water in the water storage pipe 8 will enter the washing machine through the drain port 105;

[0151] Water is introduced into the negative pressure generator 6 for the second time. The float valve 7 blocks the connection between the water storage chamber 81 and the overflow chamber 91 under the action of the water pressure of the inflowing water. The valve core 1061 moves downward under the action of the water pressure of the inflowing water to block the drain port 105, and the return spring 1062 is compressed.

[0152] Stop feeding water into the negative pressure generator 6, the water pressure of the water disappears, the reset spring 1062 extends, the valve core 1061 resets, the valve core 1061 opens the drain port 105, and the water in the water storage pipe 8 and the negative pressure pipe 63 is discharged from the drain port 105 into the washing machine.

[0153] The method of placing the additive placing device is as follows:

[0154] When water is first introduced into the negative pressure pipe 63, negative pressure is generated in the negative pressure pipe 63, and the negative pressure sucks the delivery chamber 41, so that the check valve 415 is automatically opened. As water is continuously introduced into the negative pressure pipe 63, the additive in the liquid storage chamber 114 is continuously sucked into the delivery chamber 41. At this time, the float valve 7 moves downward under the action of the water pressure of the incoming water to block the water hole 104. The float valve 7 drives the valve core 1061 to move downward, and the valve core 1061 blocks the drain port 105. The return spring 1062 is compressed, and the water in the negative pressure pipe 63 continuously enters the water storage pipe 8.

[0155] After the negative pressure pipe 63 is filled with water for a set time, the water storage pipe 8 is filled with water, and the delivery chamber 41 is filled with additives. The float valve 1 414 blocks the liquid inlet 413 of the delivery chamber 41, and then blocks the negative pressure port 61. The inside of the delivery chamber 41 is no longer sucked, so that the check valve 415 is automatically closed. The pressure in the delivery chamber 41 is not enough to open the float valve 2 31 to make the siphon structure 3 produce a siphon effect.

[0156] After the injection cavity 41 is full of additives, water is stopped from entering the negative pressure pipe 63. Under the buoyancy of water, the float valve 7 floats up to the water surface of the water storage chamber, the return spring 1062 is extended, the valve core 1061 is reset, and the drain port 105 is opened.

[0157] Water is introduced into the negative pressure pipe 63 for the second time. Under the action of the water pressure of the inflowing water, the float valve 7 blocks the connection between the water storage chamber 81 and the overflow chamber 91, the return spring 1062 is compressed, and the valve core 1061 moves downward to block the drain port 105. At this time, the inflowing water is ejected from the negative pressure port 61 and enters the delivery chamber 41 through the liquid inlet 413 of the delivery chamber 41 to wash the additive in the delivery chamber 41. The water pressure opens the float valve 2 31 in the siphon structure 3. Under the action of the siphon, the water in the delivery chamber 41 is discharged into the lower housing 12 through the delivery pipe 56, and then delivered into the washing machine from the delivery port 121 of the lower housing 12 to achieve the delivery of the additive.

[0158] After the flushing additive is completed, water stops flowing into the negative pressure pipe 63, the water pressure of the incoming water disappears, the reset spring 1062 extends, the valve core 1061 resets, the valve core 1061 opens the drain port 105, and the water stored in the water storage pipe 8 and the negative pressure pipe 63 is discharged from the drain port 105 into the washing machine.

[0159] The automatic dispensing device 100 described in this embodiment can be installed on the door 200 of the drum washing machine, and the dispensing port 411 of the automatic dispensing device is connected to the drum 400 of the drum washing machine to allow the washing additive mixture or water to be dispensed into the drum 400.

[0160] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A drum washing machine, comprising a drum, wherein a door capable of being opened and closed is provided at the drum opening; Features: An automatic delivery device is installed on the door; The automatic delivery device comprises: A liquid storage chamber for storing detergent additives; Water supply circuit, which controls the on-off flow of water into the drum washing machine; The automatic delivery mechanism is used to extract the washing additive stored in the liquid storage chamber and deliver it into the drum of the drum washing machine along with the incoming water flow introduced by the water supply waterway.

2. The drum washing machine according to claim 1, characterized in that: A delivery cavity is provided on the machine door; The delivery chamber has a water inlet, and the water supply waterway outlet is correspondingly connected to the delivery chamber water inlet; The delivery cavity has a liquid inlet, and the liquid outlet of the liquid storage cavity is connected to the delivery cavity via an automatic delivery mechanism, and the automatic delivery mechanism is used to controllably extract the washing additive stored in the liquid storage cavity into the delivery cavity; The delivery cavity has a delivery port, which is communicated with the drum and is used for delivering the washing additive and / or the inlet water flow in the delivery cavity into the drum.

3. The drum washing machine according to claim 2, characterized in that: Automatic delivery mechanisms include: A pump, the inlet of the pump is connected to the liquid outlet of the liquid storage chamber, and the outlet of the pump is connected to the liquid inlet of the delivery chamber, and is used to pump the detergent additive contained in the liquid storage chamber into the delivery chamber by using the suction force generated when the pump is working; and / or; Automatic delivery mechanisms include: A negative pressure suction structure has a negative pressure flow channel inside, a negative pressure port is opened on the negative pressure flow channel, the negative pressure port is connected to the liquid outlet of the liquid storage chamber, and the negative pressure flow channel is connected in series to the water supply waterway, and is used to use the incoming water flow flowing through the internal negative pressure flow channel to form a negative pressure at the negative pressure port, and then use the negative pressure to draw the washing additives contained in the liquid storage chamber into the delivery chamber.

4. The drum washing machine according to claim 2, characterized in that: Automatic delivery mechanisms include: The control valve water circuit, the liquid outlet of the liquid storage chamber is controllably connected to the liquid inlet of the delivery chamber through the control valve water circuit, and is used to utilize gravity to deliver the detergent additive in the liquid storage chamber into the delivery chamber when it is connected; Preferably, a control valve for controlling the on-off of the waterway is installed on the control valve waterway, and the control valve is any one or a combination of an electric control valve, a float valve, and a push valve.

5. The drum washing machine according to any one of claims 1 to 4, characterized in that: The washing machine comprises a housing, a drum is installed in the housing, and a clothing delivery opening is provided in the housing corresponding to the drum opening, so as to form a passage for taking and placing the clothing in the drum; The shell body is provided with a door which can correspond to the opening and closing of the clothing delivery port, and the automatic delivery device is installed on the door.

6. The drum washing machine according to claim 5, characterized in that: The machine door is provided with a protrusion protruding toward the inside of the shell, and at least part of the protrusion extends into the drum mouth. The automatic delivery device is installed in the hollow cavity provided on the protrusion, and the delivery port of the delivery cavity of the automatic delivery device is opened toward the inside of the drum.

7. The drum washing machine according to claim 5, characterized in that: The shell of the washing machine is provided with a water supply channel, the outlet of the water supply channel is provided with a nozzle, the nozzle has a water spray port for spraying water outward, and the water spray port is opened toward the water inlet of the delivery cavity of the automatic delivery device arranged on the machine door.

8. The drum washing machine according to claim 7, characterized in that: The water inlet of the delivery chamber is vertically arranged upward; when the machine door is in a closed position, the nozzle is located vertically above the water inlet of the delivery chamber, and the water outlet is located directly below the nozzle, coaxially arranged with the water inlet of the delivery chamber and vertically opened downward.

9. The drum washing machine according to claim 5, characterized in that: The protrusions on the machine door are made of transparent material, and at least part of the protrusions is staggered with the automatic delivery device, so that the user can observe the inside of the drum through the drum mouth from the staggered part.

10. The drum washing machine according to claim 5, characterized in that: A filling port is provided at the top of the liquid storage chamber for the user to inject detergent additives into the liquid storage chamber; The liquid outlet of the liquid storage chamber is located at the bottom of the chamber and is connected to the delivery chamber via an automatic delivery mechanism; Preferably, an openable and closable cover is installed at the filling port of the liquid storage chamber.

11. The drum washing machine according to any one of claims 2 to 10, characterized in that: A siphon structure is provided at the delivery port of the delivery chamber, which is used to intercept and mix the washing additives flowing into the delivery chamber with the inlet water flow to form a washing additive mixed liquid, and deliver the formed washing additive mixed liquid into the drum along with the inlet water flow.

12. The drum washing machine according to claim 11, characterized in that: The siphon structure comprises: The siphon is arranged at the bottom delivery port of the delivery cavity and vertically extends into the delivery cavity and upwards; The siphon cap is buckled on the top of the siphon tube and has a sleeve portion extending downward and sleeved on the outer periphery of the siphon tube; There is a first set height difference between the bottom end of the sleeve part of the siphon cap and the bottom wall of the delivery chamber, and there is a second set height difference between the top of the siphon cap and the top of the siphon tube, which is used to trigger the siphon effect when the liquid level in the liquid storage chamber reaches the height of the top of the siphon tube, and the detergent additive mixture in the liquid storage chamber flows along the gap between the siphon cap and the siphon tube and the internal flow channel of the siphon tube to the delivery port of the delivery chamber.

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