Liquid adding device and laundry machine assembly

Abstract

The embodiment of the present application provides a liquid adding device and a washing machine component. The liquid adding device is used in connection with the washing machine to add the cleaning agent in the first storage tank into the washing machine. The liquid adding device comprises a main machine, the main machine comprises a shell, a mixing tank and a push rod. The shell carries the first storage tank. The first storage tank stores the cleaning agent. The shell encloses a cavity, the mixing tank is located in the cavity and is used for containing the mixed liquid of the clean water and the cleaning agent flowing from the first storage tank. The push rod is in sliding connection with the shell and is located above the mixing tank. The push rod comprises a first inclined surface. When the push rod moves towards the first pump head close to the first storage tank, the first inclined surface abuts against a second inclined surface of the first pump head, so that the first pump head moves towards the first barrel body close to the first storage tank, and the cleaning agent in the first storage tank flows into the mixing tank. The push rod moves to drive the first pump head to move, the loss of the push rod is low, the problem of regular replacement of parts is solved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the field of liquid filling devices, and more particularly to liquid filling devices and washing machine components. Background Technology

[0002] With the increasing prevalence of washing machines in the campus sharing market, the demand for laundry detergent dispensing devices has also increased. However, current dispensing devices on the market still have many problems. For example, the commonly used solution is to use a peristaltic pump to extract and dispense laundry detergent. Over time, the hose of the peristaltic pump will wear out, which will lead to a completely uncontrollable flow of liquid being pumped. Replacing the hose later is extremely troublesome and has high maintenance costs. Utility Model Content

[0003] This application provides a low-maintenance liquid filling device and a washing machine component.

[0004] This application provides a liquid adding device for connection to a washing machine to add detergent from a first storage tank into the washing machine. The liquid adding device includes a main unit, which includes a housing, a mixing tank, and a push rod. The housing carries the first storage tank, which contains detergent. The housing forms a cavity, and the mixing tank is located within the cavity to hold a mixture of water and detergent flowing into the first storage tank. The push rod is slidably connected to the housing and located above the mixing tank. The push rod includes a first inclined surface. When the push rod moves toward a first pump head near the first storage tank, the first inclined surface abuts against a second inclined surface of the first pump head, causing the first pump head to move toward a first tank body near the first storage tank, so that the detergent in the first storage tank flows into the mixing tank.

[0005] Furthermore, the host includes a motor to drive the push rod to move.

[0006] Furthermore, the push rod includes a first tooth, the main unit includes a gear, the gear includes a second tooth, the first tooth meshes with the second tooth, and the motor drives the gear to rotate, thereby moving the push rod.

[0007] Furthermore, the push rod includes a third inclined surface, which is located at opposite ends of the push rod along with the first inclined surface. The outer casing carries a second liquid storage tank containing detergent. When the push rod moves toward a second pump head near the second liquid storage tank, the third inclined surface abuts against a fourth inclined surface of the second pump head, causing the second pump head to move toward a second tank body near the second liquid storage tank, so that the detergent in the second liquid storage tank flows into the mixing tank.

[0008] Furthermore, the first inclined surfaces are configured as a pair, and a first groove is provided between the pair of first inclined surfaces to allow the first pump head to pass through; and / or, The third inclined surface is configured as a pair, and a second groove is provided between the pair of third inclined surfaces for the second pump head to pass through.

[0009] Furthermore, the host includes a first switch and a second switch, and the push rod includes a trigger part. The push rod moves to drive the trigger part to move. When the push rod moves to abut against the first pump head, the trigger part triggers the first switch. When the push rod moves to abut against the second pump head, the trigger part triggers the second switch.

[0010] Furthermore, the host includes a third switch located between the first switch and the second switch, and when the triggering part triggers the third switch, the push rod moves to the initial position.

[0011] Furthermore, the housing includes a first stop that abuts against the first pump head to restrict horizontal movement of the first pump head; and / or, The housing includes a second stop that abuts against the second pump head to restrict the horizontal movement of the second pump head.

[0012] Furthermore, the host includes a pair of first clamping members, which clamp and lock the first liquid storage tank; and / or, The host includes a pair of second clamping members, which clamp and lock the second liquid storage tank.

[0013] Furthermore, the host includes an unlocking component that drives a pair of first clamping members and / or a pair of second clamping members to move away from each other in a direction to release the clamping lock on the first liquid storage tank and / or the second liquid storage tank.

[0014] Furthermore, the housing includes a first housing, the first clamping member and the second clamping member are assembled to the first housing and are movable relative to the first housing, the unlocking member includes a latch plate assembled to the first housing and movable relative to the first housing and a lock cylinder that pushes the latch plate to move, the latch plate moving to drive a pair of the first clamping members and / or a pair of the second clamping members to move in a direction away from each other.

[0015] Furthermore, the latch plate is provided with a first mating inclined surface and a second mating inclined surface, the first clamping member is provided with a first protrusion, and the second clamping member is provided with a second protrusion. When the lock cylinder rotates, it pushes the latch plate to move. The first protrusion moves along the first mating inclined surface to drive a pair of first clamping members to move away from each other, and the second protrusion moves along the second mating inclined surface to drive a pair of second clamping members to move away from each other.

[0016] Furthermore, the first housing is provided with a first storage slot, the push rod is located in the first storage slot, along the height direction of the main unit, the first clamping member and the second clamping member are located above the first storage slot, and the locking plate is located above the first clamping member and the second clamping member.

[0017] Furthermore, the outer shell includes a second outer shell fixed to the first outer shell, the locking plate is located between the first outer shell and the second outer shell, the second outer shell is provided with a first recess and a second recess for accommodating a portion of the first liquid storage tank and a portion of the second liquid storage tank, respectively, the first recess is provided with a first foolproof structure for cooperating with a second foolproof structure of the first liquid storage tank, and the second recess is provided with a third foolproof structure for cooperating with a fourth foolproof structure of the second liquid storage tank.

[0018] This application also provides a washing machine assembly, including a washing machine and the liquid filling device.

[0019] The liquid dispensing device of this application moves the first pump head by moving the push rod. The push rod has low wear, which solves the problem of periodically replacing parts and reduces maintenance costs. Attached Figure Description

[0020] Figure 1 A schematic diagram of a liquid dispensing device according to an exemplary embodiment of this application is shown; Figure 2 It shows Figure 1 An exploded view of the liquid addition device shown; Figure 3 It shows Figure 1 A schematic diagram of the main unit of the liquid dispensing device shown; Figure 4 It shows Figure 1 A schematic diagram of the first and second liquid storage tanks is shown. Figure 5 It shows Figure 2 The diagram shown is a schematic diagram of the first clamping member and the first elastic member assembled together. Figure 6 It shows Figure 5 A schematic diagram of the first clamping member and the first elastic member from another perspective; Figure 7 It shows Figure 2 A schematic diagram showing the positional relationship of the first clamping member, the first pump head, the second clamping member, the second pump head, the push rod, and the mixing tank within the main unit; Figure 8 It shows Figure 2 The diagram shows the assembled locking plate with the first clamping member, the second clamping member, the first elastic member, and the second elastic member. Figure 9 It shows Figure 1 The diagram shown is a schematic of the main unit after the first and second outer casings have been removed. Figure 10 It shows Figure 1 The diagram shown is a schematic of the main unit after the second outer shell and locking plate have been removed. Figure 11 It shows Figure 2 A schematic diagram of the push rod and switch plate shown; Figure 12 It shows Figure 2 The diagram shows the interaction between the push rod and the gear. Figure 13 It shows Figure 12 A cross-sectional view of the schematic diagram shown; Figure 14 It shows Figure 12 A schematic diagram of the gear shown; Figure 15 It shows Figure 2 The diagram shown illustrates the connection between the water pipe assembly and the mixing tank. Figure 16 It shows Figure 15 A schematic diagram of the main water pipe is shown. Figure 17 It shows Figure 15 The diagram shows the connection between the connecting pipe and the multi-way valve. Detailed Implementation

[0021] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0022] If the embodiments of the present application involve terms indicating directionality or positional relationship (such as up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement conditions, etc. between components under a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directionality indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of description convenience, and cannot be understood as indicating or implying relative importance.

[0023] Reference Figures 1 to 4 , the liquid adding apparatus 100 according to the embodiment of the present application is used for connecting with a washing machine (not shown), and the cleaning agent enters the washing machine after being diluted in the liquid adding apparatus 100, so as to ensure uniform dispersion of the cleaning agent and improve the cleaning effect; meanwhile, the cleaning agent is diluted in the liquid adding apparatus 100, which can prevent blockage caused by condensation of the cleaning agent.

[0024] The liquid adding apparatus 100 comprises a main body 1 and a liquid storage barrel 2 assembled on the main body 1. The cleaning agent is contained in the liquid storage barrel 2, including but not limited to laundry detergent, fabric softener, disinfectant, etc.

[0025] In one embodiment, a part of the liquid storage barrel 2 is exposed out of the main body 1, so as to save the space of the main body 1 and facilitate miniaturization of the main body 1.

[0026] In one embodiment, the liquid storage barrel 2 may be located inside the main body 1.

[0027] In one embodiment, the liquid storage barrel 2 is detachable from the main body 1. When the cleaning agent is used up, the cleaning agent is replenished by replacing the liquid storage barrel 2. A part of the liquid storage barrel 2 is exposed out of the main body 1, which also facilitates replacement of the liquid storage barrel 2.

[0028] In one embodiment, the liquid storage barrel 2 is non-detachable from the main body 1, and the liquid storage barrel 2 is provided with a cover plate, and the cleaning agent can be replenished by opening the cover plate.

[0029] In one embodiment, the liquid storage barrel 2 comprises a first liquid storage barrel 21 and a second liquid storage barrel 22. The first liquid storage barrel 21 and the second liquid storage barrel 22 are arranged along the length direction L of the main body 1. Both the first liquid storage barrel 21 and the second liquid storage barrel 22 contain cleaning agent. The first liquid storage barrel 21 and the second liquid storage barrel 22 may contain the same type of cleaning agent, or different types of cleaning agent. The color of the cleaning agent in the first liquid storage barrel 21 may be the same as or different from that of the cleaning agent in the second liquid storage barrel 22. The number of the liquid storage barrels 2 can be set to one or more according to actual needs. When one liquid storage barrel 2 is provided, it is the first liquid storage barrel 21.

[0030] The first storage tank 21 includes a first tank body 211 and a first pump head 212 connected to the first tank body 211. When the first pump head 212 moves toward the first tank body 211, the cleaning agent in the first tank body 211 will flow out from the first pump head 212.

[0031] The second storage tank 22 includes a second tank body 221 and a second pump head 222 connected to the second tank body 221. When the second pump head 222 moves toward the second tank body 221, the cleaning agent in the second tank body 221 will flow out from the second pump head 222.

[0032] The main unit 1 includes a housing 12 to house the liquid storage tank 2. The housing 12 forms a cavity 120. The main unit 1 includes a mixing tank 11 located within the cavity 120. The mixing tank 11 has an opening 110 through which the cleaning agent in the liquid storage tank 2 enters the liquid storage tank 11. The mixing tank 11 is used to hold the mixture of clean water and the cleaning agent flowing into the liquid storage tank 2, and the cleaning agent is diluted within the mixing tank 11.

[0033] In one embodiment, the storage tank 2 is located above the mixing tank 11, with its opening 110 facing upwards. The cleaning agent in the storage tank 2 enters the mixing tank 11 from top to bottom, facilitating the smooth entry of the cleaning agent into the mixing tank 11, and also minimizing the amount of cleaning agent residue left in the storage tank 2 due to gravity.

[0034] In one embodiment, the liquid storage tank 2 is assembled to the main unit 1 in a top-to-bottom direction to facilitate the assembly of the liquid storage tank 2.

[0035] In one embodiment, the outer casing 12 carries a first liquid storage tank 21 and a second liquid storage tank 22. In one embodiment, the cleaning agent in the first liquid storage tank 21 and the second liquid storage tank 22 flows from top to bottom into the mixing tank 11.

[0036] In one embodiment, the outer casing 12 is provided with a first recess 1251 for accommodating a portion of the first liquid storage tank 21.

[0037] In one embodiment, a first mis-proof structure 1253 is provided within the first recess 1251. The first liquid storage tank 21 includes a second mis-proof structure 213. When the first liquid storage tank 21 is assembled into the first recess 1251, the first mis-proof structure 1253 cooperates with the second mis-proof structure 213 to prevent the first liquid storage tank 21 from being installed in the wrong position. In one embodiment, the housing 12 is provided with a second recess 1252 for accommodating a part of the second liquid storage tank 22. In one embodiment, a third fool-proof structure 1254 is provided in the second recess 1252. The second liquid storage tank 22 includes a fourth fool-proof structure 223. When the second liquid storage tank 22 is assembled into the second recess 1252, the third fool-proof structure 1254 cooperates with the fourth fool-proof structure 223 to prevent the second liquid storage tank 22 from being installed in a wrong position.

[0038] The first fool-proof structure 1253 is different from the third fool-proof structure 1254, which may be a difference in quantity, a difference in position, or a difference in structure. In one embodiment, the first fool-proof structure 1253 is one protrusion, the second fool-proof structure 213 is one groove, the third fool-proof structure 1254 is two protrusions, and the fourth fool-proof structure 223 is two grooves.

[0039] Refe Figure 1 rring to Figures 5 to 10 , in one embodiment, the main body 1 includes a pair of first clamping members 131 connected to the housing 12 and movable relative to the housing 12. The pair of first clamping members 131 clamp and lock the first liquid storage tank 21 to prevent the first liquid storage tank 21 from detaching from the main body 1.

[0040] In one embodiment, the main body 1 includes a pair of second clamping members 132 connected to the housing 12 and movable relative to the housing 12. The pair of second clamping members 132 clamp and lock the second liquid storage tank 22 to prevent the second liquid storage tank 22 from detaching from the main body 1.

[0041] The main body 1 further includes an unlocking member 133 disposed on the housing 12. In one embodiment, the unlocking member 133 drives the pair of first clamping members 131 to move in directions away from each other respectively, so as to release the clamping and locking of the first liquid storage tank 21, thereby allowing the first liquid storage tank 21 to be taken out.

[0042] In one embodiment, the unlocking member 133 drives the pair of second clamping members 132 to move in directions away from each other respectively, so as to release the clamping and locking of the second liquid storage tank 22, thereby allowing the second liquid storage tank 22 to be taken out.

[0043] In one embodiment, the unlocking member 133 drives the pair of first clamping members 131 and the pair of second clamping members 132 to move in directions away from each other respectively, so as to release the clamping and locking of the first liquid storage tank 21 and the second liquid storage tank 22, thereby allowing the first liquid storage tank 21 and the second liquid storage tank 22 to be taken out.

[0044] The arrangement of the first clamping member 131 not only increases the stability of the first liquid storage tank 21, but also prevents the first liquid storage tank 21 from being randomly removed, so as to avoid affecting the normal operation of the washing machine.

[0045] The second clamp 132 not only increases the stability of the second liquid storage tank 22, but also prevents the second liquid storage tank 22 from being removed at will, so as not to affect the normal operation of the washing machine.

[0046] In one embodiment, the main unit 1 includes a pair of first elastic members 134. The pair of first elastic members 134 respectively abut against a pair of first clamping members 131. When the pair of first clamping members 131 move away from each other, they respectively compress the pair of first elastic members 134. The first elastic members 134 not only increase the clamping force of the first clamping members 131 to ensure the stability of the first liquid storage tank 21, but also ensure the automatic reset of the first clamping members 131, increasing the convenience of assembling the first liquid storage tank 21.

[0047] In one embodiment, the main unit 1 includes a pair of second elastic members 135. The pair of second elastic members 135 respectively abut against a pair of second clamping members 132, and when the pair of second clamping members 132 move away from each other, they respectively compress the pair of second elastic members 135. The provision of the second elastic members 135 not only increases the clamping force of the second clamping members 132 to ensure the stability of the second liquid storage tank 22, but also ensures the automatic reset of the second clamping members 132, increasing the convenience of assembling the second liquid storage tank 22.

[0048] In one embodiment, when the first liquid storage tank 21 is assembled to the main unit 1 from top to bottom, the first pump head 212 squeezes a pair of first clamping members 131, causing them to move away from each other to allow the first pump head 212 to pass through. After the first pump head 212 passes through, the squeezing force on the first clamping members 131 disappears, and a pair of first elastic members 134 drive the pair of first clamping members 131 to move and reset, making it impossible to remove the first liquid storage tank 21. The first liquid storage tank 21 can be locked simply by assembling it to the main unit 1 from top to bottom, making the operation simple and convenient.

[0049] Similarly, when the second liquid storage tank 22 is assembled to the main unit 1 from top to bottom, the second pump head 222 squeezes a pair of second clamping members 132, causing them to move away from each other to allow the second pump head 222 to pass through. After the second pump head 222 passes through, the squeezing force on the second clamping members 132 disappears, and a pair of second elastic members 135 drive the pair of second clamping members 132 to move and reset, making it impossible to remove the second liquid storage tank 22. Assembling the second liquid storage tank 22 to the main unit 1 from top to bottom locks the first liquid storage tank 21, making the operation simple and convenient.

[0050] When the liquid storage tank 2 is set to one, that is, when only the first liquid storage tank 21 is set, correspondingly, only a pair of first clamping members 131 and a pair of first elastic members 134 need to be set.

[0051] In one embodiment, the housing 12 includes a first housing 121. A first clamping member 131 and a second clamping member 132 are respectively assembled to the first housing 121 and are movable relative to the first housing 121. A first elastic member 134 is located between the first clamping member 131 and the first housing 121, and a second elastic member 135 is located between the second clamping member 132 and the first housing 121.

[0052] In one embodiment, the first housing 121 is provided with a pair of first limiting members 1212. The first clamping member 131 is located between the pair of first limiting members 1212 and the first housing 121 to increase the stability of the first clamping member 131 and the smoothness of movement.

[0053] In one embodiment, the first housing 121 is provided with a pair of second limiting members 1213. The second clamping member 132 is located between the pair of second limiting members 1213 and the first housing 121 to increase the stability of the second clamping member 132 and the smoothness of movement.

[0054] In one embodiment, the unlocking member 133 includes a strike plate 1331 assembled with and movable relative to the housing 12, and a lock cylinder 1332 that actuates the strike plate 1331. The strike plate 1331 moves to cause a pair of first clamping members 131 to move away from each other.

[0055] The strike plate 1331 has a first mating inclined surface 13311 and a second mating inclined surface 13312. A first protrusion 1311 is provided on the first clamping member 131, and a second protrusion 1321 is provided on the second clamping member 132. When the lock cylinder 1332 rotates, it pushes the strike plate 1331 to move. The first protrusion 1311 moves along the first mating inclined surface 13311 to drive a pair of first clamping members 131 to move away from each other. The second protrusion 1321 moves along the second mating inclined surface 13312 to drive a pair of second clamping members 132 to move away from each other.

[0056] In one embodiment, the latch plate 1331 is disposed on the first housing 121 and is movable relative to the first housing 121.

[0057] In one embodiment, the lock cylinder 1332 is fixed to the first housing 121.

[0058] In one embodiment, the lock cylinder 1332 is located on one side of the length direction L of the host 1.

[0059] In one embodiment, the inclination directions of the pair of first matching inclined surfaces 13311 are symmetrically arranged with respect to the central axis of the length direction L of the main body 1. The inclination directions of the pair of second matching inclined surfaces 13312 are symmetrically arranged with respect to the central axis of the length direction L of the main body 1. The first matching inclined surface 13311 and the second matching inclined surface 13312 located on the same side of the central axis in the length direction L of the main body 1 have the same inclination direction.

[0060] One lock plate 1331 can simultaneously drive the pair of first clamping members 131 and the pair of second clamping members 132, which has a simple structure and is convenient to operate.

[0061] In one embodiment, a key is inserted into the lock cylinder 1332 to drive the lock cylinder 1332 to rotate, which is convenient for operation.

[0062] In one embodiment, the lock plate 1331 includes a protruding portion 13313, and the lock cylinder 1332 abuts against the protruding portion 13313 when rotating, so as to drive the lock plate 1331 to move.

[0063] In one embodiment, the outer casing 12 includes a second outer casing 125 fixed to the first outer casing 121. The lock plate 1331 is located between the first outer casing 121 and the second outer casing 125. The first recessed portion 1251 and the second recessed portion 1252 are disposed on the second outer casing 125. The arrangement of the first outer casing 121 and the second outer casing 125 not only facilitates the processing and molding of the outer casing 12, but also facilitates the assembly of the main body 1.

[0064] Reference Figure 2 , Figure 4 and Figures 10 to 14 , in one embodiment, the main body 1 includes a push rod 14. The push rod 14 is slidably connected to the outer casing 12 and located above the liquid mixing tank 11. The push rod 14 includes a first inclined surface 141. The first pump head 212 includes a second inclined surface 2121. When the push rod 14 moves in a direction close to the first pump head 212, the first inclined surface 141 abuts against the second inclined surface 2121, so that the first pump head 212 moves in a direction close to the first barrel body 211, so that the cleaning agent in the first liquid storage barrel 21 flows into the liquid mixing tank 11. The first pump head 212 is squeezed by the movement of the push rod 14, so that the wear of the push rod 14 is low, the problem of regular part replacement is solved, and the maintenance cost is reduced.

[0065] In one embodiment, the push rod 14 moves in a horizontal direction, and the first pump head 212 moves in a vertical direction to extrude the cleaning agent. In one embodiment, the push rod 14 moves along the length direction L of the main body 1.

[0066] In one embodiment, push rod 14 includes a third inclined surface 142. The third inclined surface 142 and the first inclined surface 141 are located at opposite ends of push rod 14. Second pump head 222 includes a fourth inclined surface 2221. When push rod 14 moves toward the second pump head 222, the third inclined surface 142 and the fourth inclined surface 2221 abut against each other, causing the second pump head 222 to move toward the second tank body 221, so that the cleaning agent in the second storage tank 22 flows into the mixing tank 11.

[0067] In one embodiment, the first inclined surfaces 141 are configured as a pair, and a first groove 143 is provided between the pair of first inclined surfaces 141 for the first pump head 212 to pass through. The first groove 143 can also provide a guiding function to ensure that the first pump head 212 is always in the middle position of the first groove 143.

[0068] In one embodiment, the third inclined surface 142 is provided as a pair, and a second groove 144 is provided between the pair of third inclined surfaces 142 for the second pump head 222 to pass through. The second groove 144 can also provide a guiding function to ensure that the second pump head 222 is always in the middle position of the second groove 144.

[0069] In one embodiment, the opposite ends of the push rod 14 are U-shaped.

[0070] In one embodiment, the main unit 1 includes a motor 15 to drive the push rod 14 to move, thereby enabling automatic addition of cleaning agent without human intervention, making it more intelligent.

[0071] In one embodiment, the main unit 1 includes a color sensor (not shown) for detecting whether there is detergent in the liquid reservoir 2. When there is detergent in the liquid reservoir 2, the motor 15 operates; when there is no detergent in the liquid reservoir 2, the main unit 1 can issue a reminder to avoid affecting the cleanliness of the laundry.

[0072] In one embodiment, the color sensor determines whether there is cleaning agent in the storage tank 2 based on the color of the cleaning agent in the storage tank 2. The color sensor uses non-contact detection to avoid contaminating the cleaning agent.

[0073] In one embodiment, the host 1 includes a supplementary light (not shown). During detection, the supplementary light illuminates the liquid storage tank 2, and the color is detected by the color sensor through color reflection. There is a clear color change in the state of liquid shortage and liquid availability, which enables the color sensor to accurately measure the liquid level line, thereby realizing non-contact liquid level detection and ensuring that the liquid detection is not contaminated.

[0074] In one embodiment, the detergents in the first liquid storage tank 21 and the second liquid storage tank 22 are of different colors. The main unit 1 includes an error reporting device (not shown) that is communicatively connected to a color sensor. When the color sensor detects that the first liquid storage tank 21 and the second liquid storage tank 22 are installed in the wrong position, the error reporting device issues an error reminder to prevent incorrect installation from affecting the washing effect.

[0075] When the color sensor detects that the color of the cleaning agent in the first liquid storage tank 21 or the second liquid storage tank 22 is different from the set color, it can be determined that the first liquid storage tank 21 and the second liquid storage tank 22 are installed in the wrong position.

[0076] In one embodiment, the push rod 14 includes a first tooth 145. The main unit 1 includes a gear 16, which includes a second tooth 161. The first tooth 145 meshes with the second tooth 161, and the motor 15 drives the gear 16 to rotate, thereby moving the push rod 14 to achieve the function of automatically adding cleaning agent. This method is stable, reliable, and has low maintenance costs.

[0077] In one embodiment, the push rod 14 is provided with a sliding groove 146, and the gear 16 includes a protrusion 162. The protrusion 162 is located within the sliding groove 146. When the push rod 14 moves, the protrusion 162 moves along the sliding groove 146, ensuring the stability of the meshing between the first tooth 145 and the second tooth 161, ensuring that the motor 15 can drive the push rod 14 to move, and ensuring that cleaning agent can be added normally.

[0078] In one embodiment, the motor shaft of the motor 15 is fixed to the gear 16 to drive the gear 16 to rotate, which is a simple structure.

[0079] In one embodiment, the gear 16 is provided with a fixing hole 163, and the motor shaft of the motor 15 is inserted into the fixing hole 163. The structure is simple and easy to assemble.

[0080] In one embodiment, the motor shaft and the fixing hole 163 of the motor 15 are both irregularly shaped to ensure that the motor 15 can drive the gear 16 to rotate and the structure is simple.

[0081] In one embodiment, the main unit 1 includes a first switch 171 and a second switch 172. The push rod 14 includes a trigger part 147. Moving the push rod 14 moves the trigger part 147. When the push rod 14 moves to abut against the first pump head 212, the trigger part 147 triggers the first switch 171; when the push rod 14 moves to abut against the second pump head 222, the trigger part 147 triggers the second switch 172. Since the positions of the first switch 171 and the second switch 172 are fixed, the controllability of the detergent dispensing volume can be ensured.

[0082] In one embodiment, the host 1 includes a third switch 173, which is located between the first switch 171 and the second switch 172. When the triggering part 147 triggers the third switch 173, the push rod 14 moves to the initial position, the motor 15 stops rotating, and the push rod 14 is reset.

[0083] In one embodiment, the housing 12 includes a first stop 1214 and a second stop 1215. The first stop 1214 abuts against the first pump head 212 to restrict the horizontal movement of the first pump head 212, and the second stop 1215 abuts against the second pump head 222 to restrict the horizontal movement of the second pump head 222, ensuring that the first pump head 212 can move toward the first barrel 211 and the second pump head 222 can move toward the second barrel 221.

[0084] In one embodiment, the first stop 1214 and the second stop 1215 are disposed on the first housing 121.

[0085] In one embodiment, the first housing 121 is provided with a first storage groove 1216, and the push rod 14 is located in the first storage groove 1216. The first storage groove 1216 not only provides a guiding function, but also increases the stability of the push rod 14.

[0086] In one embodiment, the first housing 121 is provided with a second storage slot 1217, and the main unit 1 includes a switch plate 174 located within the second storage slot 1217, which not only saves space but also protects the switch plate 174. A first switch 171, a second switch 172, and a third switch 173 are fixed to the switch plate 174. In one embodiment, the switch plate 174 is fixed to the first housing 121 with screws, facilitating the assembly and disassembly of the switch plate 174.

[0087] In one embodiment, the first switch 171, the second switch 172, and the third switch 173 are photoelectric switches. In another embodiment, the first switch 171, the second switch 172, and the third switch 173 are mechanical switches, electromagnetic switches, Hall effect switches, etc.

[0088] In one embodiment, along the thickness direction W of the main unit 1, the second storage slot 1217 is located on one side of the first storage slot 1216. Along the height direction H of the main unit 1, the first clamping member 131 and the second clamping member 132 are located above the first storage slot 1216, and the locking plate 1331 is located above the first clamping member 131 and the second clamping member 132.

[0089] When the motor 15 rotates in a first direction, the gear 16 drives the push rod 14 to move towards the first liquid storage tank 21, the first inclined surface 141 contacts the second inclined surface 2121, so that the first pump head 212 moves leftward and upward. Since the first stopper 1214 contacts and limits the position of the first pump head 212, the first pump head 212 can only move upward, and cleaning agent flows out from the liquid outlet of the first pump head 212, thereby realizing the liquid outlet function of the first liquid storage tank 21.

[0090] When the motor 15 rotates in a second direction opposite to the first direction, the gear 16 drives the push rod 14 to move towards the second liquid storage tank 22, the third inclined surface 142 contacts the fourth inclined surface 2221, so that the second pump head 222 moves rightward and upward. Since the second stopper 1215 contacts and limits the position of the second pump head 222, the second pump head 222 can only move upward, and cleaning agent flows out from the liquid outlet of the second pump head 222, thereby realizing the liquid outlet function of the second liquid storage tank 22.

[0091] One motor 15 can realize the liquid outlet function of two liquid storage tanks 2, which has simple structure and saves space and cost.

[0092] Refer Figures 1 to 2 to Figures 15 to 17 , the main body 1 includes a water pipe assembly 18. The water pipe assembly 18 includes a main water pipe 181, a communication pipe 182 and a multi-way valve 183.

[0093] The main water pipe 181 includes a water inlet 1811 and a water outlet 1812. The water inlet 1811 communicates with a water source, and the water outlet 1812 communicates with a washing machine. The communication pipe 182 and the main water pipe 181 are arranged sequentially along the thickness direction W of the main body 1, so as to reduce the height of the main body 1. The communication pipe 182 includes a first end 1821, a second end 1822 and a third end 1823. The first end 1821 communicates with the liquid mixing tank 11, and the second end 1822 communicates with the main water pipe 181.

[0094] In one embodiment, the water inlet 1811 and the water outlet 1812 are exposed outside the housing 12, so as to facilitate connection with an external water source and the washing machine.

[0095] In one embodiment, the housing 12 includes a third housing 126 fixed to the first housing 121. The first housing 121 is located between the second housing 125 and the third housing 126. The water pipe assembly 18 and the liquid mixing tank 11 are located in a space enclosed by the first housing 121 and the third housing 126. The third housing 126 is provided with a first hole (not shown) for the water inlet 1811 to pass through. The third housing 126 is provided with a second hole (not shown) for the water outlet 1812 to pass through.

[0096] In one embodiment, the third housing 126 is located at the bottom of the main body 1.

[0097] In one embodiment, both the inlet 1811 and the outlet 1812 face downwards, giving the main unit 1 a neat appearance.

[0098] The multi-way valve 183 includes a first connection end 1831, a second connection end 1832, and a third connection end 1833. The first connection end 1831 is connected to the main water pipe 181, the second connection end 1832 is connected to the mixing tank 11, and the third connection end 1833 is connected to the third end 1823.

[0099] When clean water enters the connecting pipe 182 through the multi-way valve 183, the pressure draws the mixed liquid in the mixing tank 11 into the connecting pipe 182. The clean water flowing into the connecting pipe 182, together with the mixed liquid entering the connecting pipe 182, enters the washing machine through the outlet 1812. The detergent in the storage tank 2, after being diluted in the mixing tank 11, enters the washing machine through the connecting pipe 182. This prevents the concentrated detergent from condensing in the water pipe assembly 18 or causing crystallization due to the mixing of different detergents, which could lead to blockage of the main unit 1. This reduces maintenance work and lowers maintenance costs. At the same time, it also solves the problems of detergent leakage and backflow that could contaminate the water source.

[0100] When the washing machine is in use, clean water can enter the washing machine through the main water pipe 181, or it can enter the mixing tank 11 through the multi-way valve 183 to dilute the detergent. Alternatively, it can enter the connecting pipe 182 through the multi-way valve 183 to allow the mixed liquid in the mixing tank 11 to enter the washing machine.

[0101] The connecting pipe 182 includes, but is not limited to, Venturi pipes and ordinary water pipes.

[0102] The working principle of a Venturi tube is based on the Venturi effect and the law of conservation of energy. When fluid passes through the constriction section of the Venturi tube, the flow velocity increases and the static pressure decreases, thus creating a pressure difference before and after the throat. This pressure difference is proportional to the fluid flow rate, and the flow rate can be calculated by measuring this pressure difference. A Venturi tube consists of three parts: a constriction section, a throat, and a diffuser section. The changes in velocity and pressure as the fluid passes through these parts are used to measure the flow rate.

[0103] The cleaning agent is drawn from the mixing tank 11 using a venturi tube. The venturi tube only works when there is water flow in the pipeline. Compared with injecting liquid into the pipeline by a pump, there is no risk of the pipeline bursting due to continuous injection of liquid into the pipeline.

[0104] In one embodiment, along the height direction H of the main unit 1, the main water pipe 181 and the connecting pipe 182 are both located below the mixing tank 11 to reduce the thickness of the main unit 1.

[0105] In one embodiment, the first end 1821 is connected to the mixing tank 11 via a first water pipe 1841.

[0106] In one embodiment, the first end 1821 is positioned upwards to facilitate the assembly of the first water pipe 1841 and to prevent the first water pipe 1841 from contacting the third housing 126, thereby protecting the first water pipe 1841.

[0107] In one embodiment, the main water pipe 181 is arranged in parallel with at least a portion of the connecting pipe 182, resulting in a compact structure that saves space.

[0108] In one embodiment, the second end 1822 is directly connected to the main water pipe 181. In another embodiment, the second end 1822 is connected to the main water pipe 181 via a bend 1842, which facilitates processing and shaping.

[0109] In one embodiment, the length direction L1 of the mixing tank 11 is the same as the length direction L of the main unit 1. The mixing tank 11 includes a first connecting portion 111 and a second connecting portion 112. The first connecting portion 111 and the second connecting portion 112 are located at opposite ends of the length direction L of the mixing tank 11. A second connecting end 1832 communicates with the first connecting portion 111, and a first end 1821 communicates with the second connecting portion 112. The distance between the first connecting portion 111 and the second connecting portion 112 is relatively large, which is beneficial for the mixing of cleaning agents and can prevent cleaning agent residue.

[0110] In one embodiment, both the main water pipe 181 and the connecting pipe 182 extend along the length direction L of the host machine 1.

[0111] In one embodiment, the first connecting portion 111 and the second connecting portion 112 may be positioning posts protruding from the mixing tank 11.

[0112] In one embodiment, the orientation of the first connecting portion 111 is perpendicular to the orientation of the second connecting portion 112 to save space.

[0113] In one embodiment, the water pipe assembly 18 includes a first valve 185 that connects a second connection end 1832 to a mixing tank 11 to control the opening and closing of the multi-way valve 183 and the mixing tank 11.

[0114] In one embodiment, along the length L of the mixing tank 11, a multi-way valve 183 is located between the first valve 185 and the connecting pipe 182 to reduce the thickness of the main unit 1.

[0115] In one embodiment, along the height direction H of the main unit 1, the height of the second connecting part 112 is lower than the height of the first connecting part 111, which facilitates rinsing the mixing tank 11 with clean water to prevent detergent residue; at the same time, it facilitates the entry of the mixed liquid in the mixing tank 11 into the connecting pipe 182 to prevent mixed liquid residue. The first valve 185 may be a pressure reducing valve, etc.

[0116] In one embodiment, the first valve 185 can be opened and closed intermittently to prevent the detergent from crystallizing and leaving liquid residue in the mixing tank 11; at the same time, it prevents water pollution caused by water hammer effect or negative pressure in the pipeline resulting from the opening and closing of the first valve 185, which could introduce the detergent into the external water source.

[0117] In one embodiment, the first valve 185 is connected to the mixing tank 11 via a second water pipe 1843.

[0118] In one embodiment, the main unit 1 includes a second valve 186 disposed on the main water pipe 181. The second valve 186 is located between the inlet 1811 and the outlet 1812 to control the opening and closing of the main water pipe 181. The main unit 1 includes a first detection device 187 and a first control device (not shown). When the first detection device 187 detects water flow in the main water pipe 181, the first control device controls the second valve 186 to close, allowing clean water to enter the multi-way valve 183.

[0119] In one embodiment, the first detection device 187 includes, but is not limited to, a flow meter.

[0120] In one embodiment, the main unit 1 includes a second detection device (not shown) and a second control device (not shown). When the second detection device detects that the liquid level in the mixing tank 11 is below a threshold, the second control device controls the first valve 185 to open, allowing clean water to enter the mixing tank 11 and flushing away any remaining mixed liquid. When the second detection device detects that the liquid level in the mixing tank 11 reaches the threshold, the first valve 185 closes, stopping water intake into the mixing tank 11, and the mixed liquid in the mixing tank 11 enters the connecting pipe 182, achieving the rinsing function.

[0121] The clean water line entering the washing machine is separated from the detergent line entering the washing machine. This prevents liquid in the detergent line from flowing back into the clean water line and contaminating it in the event of unstable water pressure or system malfunction.

[0122] In one embodiment, the liquid volume in the mixing tank 11 can be detected by means of a float sensor, a liquid level sensor, or the like.

[0123] In one embodiment, the host 1 includes a display screen 19 disposed on the first housing 121.

[0124] In one embodiment, the display screen 19 is located on one side of the host 1 in the thickness direction W.

[0125] This application also provides a washing machine assembly (not shown), including a washing machine and a liquid filling device 100. The liquid filling device 100 is located outside the washing machine for easy maintenance.

[0126] The liquid filling device 100 can be connected to an existing washing machine. The liquid filling device 100 can be hung or placed on a countertop; this application does not impose any restrictions on this.

[0127] The main unit 1 includes a control circuit board, which realizes the logic control of all components and ensures the stable operation of the washing machine components.

[0128] In one embodiment, the liquid filling device 100 adopts a DC 12V power supply system to ensure that the internal power supply of the liquid filling device 100 is low voltage, so as to avoid safety problems such as tripping caused by leakage, and to ensure the safety of the liquid filling device 100.

[0129] In one embodiment, when a washing machine connected to a liquid filling device 100 is used, laundry services can be performed by scanning a code.

[0130] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A liquid dispensing device for connection to a washing machine to add detergent from a first storage tank into the washing machine, characterized in that, The liquid dispensing device includes a main unit, which includes: The outer shell supports the first liquid storage tank, which contains cleaning agent, and the outer shell forms a cavity. A mixing tank, located within the cavity, is used to hold a mixture of clean water and detergent flowing into the first storage tank. A push rod is slidably connected to the outer casing and located above the mixing tank. The push rod includes a first inclined surface. When the push rod moves toward the first pump head near the first storage tank, the first inclined surface abuts against the second inclined surface of the first pump head, so that the first pump head moves toward the first tank body near the first storage tank, so that the cleaning agent in the first storage tank flows into the mixing tank.

2. The liquid addition device according to claim 1, characterized in that, The main unit includes a motor to drive the push rod to move.

3. The liquid addition device according to claim 2, characterized in that, The push rod includes a first tooth, the main unit includes a gear, the gear includes a second tooth, the first tooth meshes with the second tooth, and the motor drives the gear to rotate so as to move the push rod.

4. The liquid addition device according to claim 1, characterized in that, The push rod includes a third inclined surface, which is located at opposite ends of the push rod along with the first inclined surface. The outer casing carries a second storage tank containing detergent. When the push rod moves toward a second pump head near the second storage tank, the third inclined surface abuts against a fourth inclined surface of the second pump head, causing the second pump head to move toward a second tank body near the second storage tank, so that the detergent in the second storage tank flows into the mixing tank.

5. The liquid addition device according to claim 4, characterized in that, The first inclined surface is configured as a pair, and a first groove is provided between the pair of first inclined surfaces to allow the first pump head to pass through; and / or, The third inclined surface is configured as a pair, and a second groove is provided between the pair of third inclined surfaces for the second pump head to pass through.

6. The liquid addition device according to claim 4, characterized in that, The main unit includes a first switch and a second switch. The push rod includes a trigger part. The push rod moves to drive the trigger part to move. When the push rod moves to abut the first pump head, the trigger part triggers the first switch. When the push rod moves to abut the second pump head, the trigger part triggers the second switch.

7. The liquid addition device according to claim 6, characterized in that, The host includes a third switch located between the first switch and the second switch. When the triggering part triggers the third switch, the push rod moves to the initial position.

8. The liquid addition device according to claim 4, characterized in that, The housing includes a first stop that abuts against the first pump head to restrict horizontal movement of the first pump head; and / or, The housing includes a second stop that abuts against the second pump head to restrict the horizontal movement of the second pump head.

9. The liquid addition device according to claim 4, characterized in that, The host includes a pair of first clamping members, which clamp and lock the first liquid storage tank; and / or The host includes a pair of second clamping members, which clamp and lock the second liquid storage tank.

10. The liquid addition device according to claim 9, characterized in that, The host includes an unlocking component that drives a pair of first clamping members and / or a pair of second clamping members to move away from each other in a direction to release the clamping lock on the first liquid storage tank and / or the second liquid storage tank.

11. The liquid addition device according to claim 10, characterized in that, The housing includes a first housing, the first clamping member and the second clamping member are assembled to the first housing and are movable relative to the first housing, the unlocking member includes a latch plate assembled to the first housing and movable relative to the first housing and a lock cylinder that pushes the latch plate to move, the latch plate moving to drive a pair of the first clamping members and / or a pair of the second clamping members to move away from each other.

12. The liquid addition device according to claim 11, characterized in that, The latch plate is provided with a first mating inclined surface and a second mating inclined surface. The first clamping member is provided with a first protrusion, and the second clamping member is provided with a second protrusion. When the lock cylinder rotates, it pushes the latch plate to move. The first protrusion moves along the first mating inclined surface to drive a pair of first clamping members to move away from each other. The second protrusion moves along the second mating inclined surface to drive a pair of second clamping members to move away from each other.

13. The liquid addition device according to claim 12, characterized in that, The first housing has a first storage slot, the push rod is located in the first storage slot, along the height direction of the main unit, the first clamping member and the second clamping member are located above the first storage slot, and the locking plate is located above the first clamping member and the second clamping member.

14. The liquid addition device according to claim 12, characterized in that, The outer shell includes a second outer shell fixed to the first outer shell. The locking plate is located between the first outer shell and the second outer shell. The second outer shell has a first recess and a second recess for accommodating a portion of the first liquid storage tank and a portion of the second liquid storage tank, respectively. The first recess has a first foolproof structure for cooperating with a second foolproof structure of the first liquid storage tank. The second recess has a third foolproof structure for cooperating with a fourth foolproof structure of the second liquid storage tank.

15. A washing machine assembly, characterized in that, Includes a washing machine and the liquid dispensing device as described in any one of claims 1 to 14.

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