Liquid adding device and washing machine

Abstract

The application relates to a liquid adding device and a washing machine. The liquid adding device comprises a liquid adding shell, a liquid adding inner box, a driving assembly and a liquid adding mechanism. The liquid adding inner box is detachably installed in the liquid adding shell, wherein the liquid adding inner box is used for storing washing medium; the driving assembly is installed on the liquid adding shell, a driving block is connected to the driving assembly, and the driving block can reciprocate relative to the liquid adding inner box under the driving of the driving assembly; the liquid adding mechanism is installed on the liquid adding inner box and abuts against the driving block, so that the washing medium in the liquid adding inner box is pumped out to the liquid adding shell under the pushing of the driving block. In the application, the working of the driving assembly is not affected by the washing medium, the service life is prolonged, meanwhile, the liquid adding inner box can drive the liquid adding mechanism to be detached from the liquid adding shell, so that the maintenance and replacement of the liquid adding device are facilitated, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of refrigerant filling technology for washing machines, and in particular to a refrigerant filling device and a washing machine. Background Technology

[0002] The liquid filling device is an important component of a washing machine, used to automatically add laundry media into the washing machine to meet the washing needs during operation.

[0003] Currently, the liquid dispensing device in existing washing machines is usually powered by a plunger pump, which is integrally molded into the housing of the dispensing device. Because the washing medium has a certain viscosity, the plunger pump is prone to clogging after a period of operation, causing the automatic dispensing function of the device to fail. Therefore, it is necessary to remove the plunger pump and the entire dispensing device from the washing machine for repair or replacement, which is costly. Summary of the Invention

[0004] Therefore, it is necessary to provide a liquid adding device and a washing machine to address the aforementioned technical problems.

[0005] A liquid dispensing device, the liquid dispensing device comprising:

[0006] Liquid filling housing;

[0007] A liquid filling inner box is detachably installed inside the liquid filling housing, wherein the liquid filling inner box is used to store laundry medium;

[0008] A drive assembly is mounted on the liquid filling housing. A drive block is connected to the drive assembly, and the drive block can reciprocate relative to the liquid filling inner box under the drive of the drive assembly.

[0009] A liquid filling mechanism is installed on the liquid filling inner box and abuts against the drive block to draw the washing medium in the liquid filling inner box into the liquid filling shell under the push of the drive block.

[0010] In this application, the drive assembly and the liquid dispensing mechanism are installed separately, and a pump-out method is used to drive the laundry medium when the liquid dispensing device is working. This ensures that the drive assembly does not directly contact the laundry medium when the liquid dispensing device is working, thus making the operation of the drive assembly unaffected by the laundry medium and extending its service life. At the same time, the inner liquid dispensing box is detachably installed on the liquid dispensing housing, so that when the liquid dispensing device is working, the inner liquid dispensing box can drive the liquid dispensing mechanism to be removed from the liquid dispensing housing, which facilitates subsequent maintenance and replacement of the liquid dispensing device and reduces costs.

[0011] In one embodiment, the liquid filling inner box includes an inner box body and a sealing cover. The inner box body has a liquid filling port and a liquid outlet. The sealing cover is installed at the position of the liquid filling port on the inner box body to restrict the washing medium from flowing out of the liquid filling port.

[0012] The liquid filling mechanism is installed at the location of the liquid outlet on the inner box body to control the connection / disconnection between the inner box body and the liquid filling shell.

[0013] It is understandable that the structure of the inner box body and the sealing cover described above are used to specifically realize the structural setting of the liquid filling inner box and to specifically realize the determination of the assembly position of the liquid filling mechanism on the liquid filling inner box.

[0014] In one embodiment, the sealing cap is configured as an elastic element, wherein the sealing cap has a slit and a guide groove, and the slit extends through the sealing cap;

[0015] The liquid filling housing is provided with a protrusion that can be inserted into the guide groove and squeeze the sealing cap to deform, thereby opening the gap and allowing the inner box body to communicate with the outside air.

[0016] Understandably, the protrusion on the liquid filling housing is used to pry open the gap in the sealing cover, which can meet the needs of the liquid filling mechanism to draw laundry media from the inner box body when it is working.

[0017] In one embodiment, the driving assembly includes a movable iron core, a fixed iron core, a winding coil, and a push rod. The movable iron core is disposed opposite to the fixed iron core, and the movable iron core can move toward the fixed iron core under the drive of the magnetic field generated when the winding coil is energized.

[0018] The push rod passes through the fixed iron core and extends into the liquid filling housing. The drive block is connected to one end of the push rod that extends into the liquid filling housing, and the other end of the push rod is connected to the movable iron core.

[0019] It is understandable that by using the above-mentioned structure of movable iron core, fixed iron core, winding coil and push rod, the structure of the drive assembly is specifically implemented so that when the drive assembly is working, the movable iron core can drive the drive block to move by the push rod, which has the effect of improving the driving force of the liquid filling mechanism.

[0020] In one embodiment, the liquid dispensing device further includes a sealing diaphragm disposed between the drive assembly and the liquid dispensing housing, so as to seal the drive assembly and the liquid dispensing housing during assembly.

[0021] The push rod is disposed through the sealing diaphragm.

[0022] It is understandable that the above-mentioned sealing diaphragm structure is used to achieve the assembly sealing of the drive component on the liquid filling housing.

[0023] In one embodiment, the liquid filling mechanism includes a liquid filling housing and a liquid filling rod assembly. The liquid filling housing is detachably mounted on the liquid filling inner box, and the liquid filling rod assembly is slidably mounted inside the liquid filling housing and abuts against the drive block to control the on / off connection between the liquid filling inner box and the liquid filling housing under the pushing of the drive block.

[0024] It is understandable that, through the above-mentioned structural arrangement of the liquid filling housing and the liquid filling rod assembly, the liquid filling mechanism is specifically designed so that, when the liquid filling mechanism is working, the liquid filling rod assembly slides within the liquid filling housing to achieve the extraction and discharge of the washing medium in the liquid filling inner box.

[0025] In one embodiment, the liquid filling rod assembly includes a first liquid filling rod, a second liquid filling rod, and a piston, wherein the first liquid filling rod and the second liquid filling rod are connected and communicate with each other;

[0026] The first liquid filling rod and the second liquid filling rod cooperate with each other to form a piston mounting part. The piston is slidably mounted between the piston mounting part and the liquid filling housing. The second liquid filling rod has a liquid inlet hole, and the piston can slide on the piston mounting part to control the opening / closing of the liquid inlet hole.

[0027] It is understandable that, through the above-mentioned structural arrangement of the first liquid filling rod, the second liquid filling rod, and the piston, the structure of the liquid filling rod assembly is specifically implemented such that when the liquid filling rod assembly slides inside the liquid filling housing, the sliding of the piston on the piston mounting part is used to control the opening and closing of the liquid inlet, thereby controlling the liquid filling rod assembly to draw laundry medium from the liquid filling inner box.

[0028] In one embodiment, the liquid adding mechanism further includes a pump head, which is connected and communicates with the first liquid adding rod, wherein the pump head has a first liquid outlet hole communicating with the liquid adding housing, and the first liquid outlet hole communicating with the liquid inlet hole;

[0029] Alternatively, the first liquid filling rod is provided with a second liquid outlet, and the liquid filling housing is provided with a third liquid outlet that communicates with the liquid filling housing. The third liquid outlet communicates with the liquid inlet through the second liquid outlet.

[0030] It is understandable that the above-described structural configuration provides two specific embodiments for achieving communication between the liquid filling mechanism and the liquid filling housing.

[0031] In one embodiment, the liquid dispensing mechanism further includes an elastic reset member, which is fitted onto the first liquid dispensing rod to drive the drive block to elastically reset.

[0032] It is understandable that the elastic reset component is used to drive the drive block to elastically reset in order to meet the operational requirements of the liquid dispensing device.

[0033] This application also claims protection for a washing machine, including a washing machine body and a liquid filling device as described in any of the above claims, the liquid filling device being mounted on the washing machine body.

[0034] Compared with the prior art, this application has the following advantages:

[0035] The liquid dispensing device and washing machine claimed in this application separate the drive component from the liquid dispensing mechanism and use a pumping method to drive the washing medium during operation. This ensures that the drive component does not directly contact the washing medium during operation, thus extending its service life. Furthermore, the inner liquid dispensing box is detachably installed on the outer liquid dispensing housing, allowing the inner box to pull the liquid dispensing mechanism off the housing during operation. This facilitates subsequent maintenance and replacement of the liquid dispensing device, reducing costs. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a liquid dispensing device provided in an embodiment of this application, wherein the liquid dispensing mechanism is in the state of discharging laundry medium;

[0038] Figure 2 for Figure 1 Enlarged view of the middle P section;

[0039] Figure 3 This is a schematic diagram of the structure of a liquid dispensing device provided in an embodiment of this application, wherein the liquid dispensing mechanism is in the state of sucking up the washing medium;

[0040] Figure 4 for Figure 3 Enlarged view of the middle Q section;

[0041] Figure 5This is a schematic diagram of the structure of a liquid dispensing device provided in another embodiment of this application, wherein the liquid dispensing mechanism is in the state of discharging laundry medium;

[0042] Figure 6 for Figure 5 Enlarged view of the middle R section;

[0043] Figure 7 This is a schematic diagram of the structure of a liquid dispensing device provided in another embodiment of this application, wherein the liquid dispensing mechanism is in the state of sucking up the washing medium;

[0044] Figure 8 for Figure 7 Enlarged view of the middle S section;

[0045] Figure 9 This is a schematic diagram of the structure of the lower cover in this application;

[0046] Figure 10 This is a schematic diagram of the structure of the lower cover in this application;

[0047] Figure 11 This is a structural schematic diagram of the main body of the inner box in this application;

[0048] Figure 12 This is a schematic diagram of the sealing cap structure in this application;

[0049] Figure 13 This is a structural schematic diagram of the sealing cap from another perspective in this application.

[0050] Reference numerals: 10. Liquid filling housing; 11. Lower cover; 111. Flow channel; 1111. Flow channel wall; 112. Inlet; 12. Upper cover; 121. Protrusion; 20. Liquid filling inner box; 21. Inner box body; 211. Liquid filling port; 212. Liquid outlet; 213. Groove; 22. Sealing cover; 221. Gap; 222. Guide groove; 30. Drive assembly; 31. Movable iron core; 32. Fixed iron core; 33. Winding coil; 34. Push rod; 35. Magnetic guide frame; 36. Sealing diaphragm; 40. 41. Liquid filling mechanism; 41. Connecting housing; 411. Connecting bend; 412. Steel ball; 413. Baffle; 414. Claw; 415. Third liquid outlet; 42. Liquid filling rod assembly; 420. Piston mounting part; 421. First liquid filling rod; 4211. Second liquid outlet; 4212. Limiting sleeve; 422. Second liquid filling rod; 4221. Liquid inlet; 423. Piston; 43. Screw sleeve; 44. Pump head; 441. First liquid outlet; 45. Elastic reset component; 46. Pressure cap; 50. Drive block. Detailed Implementation

[0051] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0052] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0056] like Figure 1 , Figure 3, Figure 5 and Figure 7 As shown, an embodiment of this application provides a liquid dispensing device including a liquid dispensing housing 10, a liquid dispensing inner box 20, a drive assembly 30, and a liquid dispensing mechanism 40. The liquid dispensing inner box 20 is detachably installed inside the liquid dispensing housing 10, and is used to store laundry media. The drive assembly 30 is installed on the liquid dispensing housing 10, and a drive block 50 is connected to the drive assembly 30. The drive block 50 can reciprocate relative to the liquid dispensing inner box 20 under the drive of the drive assembly 30. The liquid dispensing mechanism 40 is installed on the liquid dispensing inner box 20 and abuts against the drive block 50 to pump the laundry media in the liquid dispensing inner box 20 into the liquid dispensing housing 10 under the push of the drive block 50. It should be noted that the aforementioned laundry media specifically includes detergent, fabric softener, softener, disinfectant, etc.

[0057] Understandably, this liquid dispensing device separates the drive assembly 30 from the dispensing mechanism 40 and uses a suction-discharge method to drive the laundry medium during operation. This prevents the drive assembly 30 from directly contacting the laundry medium, thus extending its service life. Simultaneously, the inner dispensing box 20 is detachably mounted to the dispensing housing 10, allowing the dispensing mechanism 40 to be removed from the housing 10 during operation. This facilitates subsequent maintenance and replacement, reducing costs. Of course, both the inner dispensing box 20 and the dispensing mechanism 40 can be made of plastic, and replacing them as a whole or separately would further reduce costs.

[0058] It should be noted that the liquid filling device has two liquid filling boxes 20, one of which is used to store detergent and the other is used to store fabric softener. Correspondingly, there are also two sets of drive assembly 30 and liquid filling mechanism 40, which are used to control the extraction and discharge of laundry media in the two liquid filling boxes 20 respectively.

[0059] like Figure 9 , Figure 10As shown, the liquid filling housing 10 includes a lower cover 11 and an upper cover 12. The lower cover 11 has a flow channel 111 and a water inlet 112. Detergent and fabric softener discharged from the two inner filling boxes 20 via the corresponding liquid filling mechanism 40 can both be discharged through the flow channel 111. The water inlet 112 communicates with the flow channel 111, allowing water introduced through the inlet 112 to also be discharged through the flow channel 111, thus flushing the flow channel 111 and preventing detergent and fabric softener from accumulating on the lower cover 11 during operation. Alternatively, a turbidity sensor can be installed within the flow channel 111 of the lower cover 11 to detect the turbidity of the water and provide signal feedback.

[0060] like Figure 11-13 As shown, the liquid filling inner box 20 includes an inner box body 21 and a sealing cover 22. The inner box body 21 has a liquid filling port 211 and a liquid outlet 212. The sealing cover 22 is installed at the position of the liquid filling port 211 on the inner box body 21 to restrict the washing medium from flowing out of the liquid filling port 211. The liquid filling mechanism 40 is installed at the position of the liquid outlet 212 on the inner box body 21 to control the connection / disconnection between the inner box body 21 and the liquid filling shell 10. This specifically realizes the structural setting of the liquid filling inner box 20 and specifically realizes the determination of the assembly position of the liquid filling mechanism 40 on the liquid filling inner box 20.

[0061] It should be noted that the liquid filling inner box 20 is installed inside the liquid filling housing 10. Specifically, the liquid filling inner box 20 can be supported by the flow channel wall 1111 of the flow channel 111 on the lower cover 11 of the liquid filling housing 10.

[0062] The sealing cover 22 is an elastic element with a slit 221 and a guide groove 222. The slit 221 extends through the sealing cover 22. The liquid filling housing 10 is provided with a protrusion 121. Specifically, the protrusion 121 is installed on the upper cover 12, and the protrusion 121 can be inserted into the guide groove 222 and squeeze the sealing cover 22 to deform it, so as to open the slit 221 and make the inner box body 21 communicate with the outside air. This can meet the use requirements of the liquid filling mechanism 40 to draw laundry medium from the inner box body 21 when it is working.

[0063] It should be noted that the width of the gap 221 on the sealing cover 22 is set to be as small as possible. Specifically, the width of the gap 221 can be set to 0.1 mm, so that when the liquid filling inner box 20 is separated from the liquid filling housing 10 and the protrusion 121 is released from the squeezing of the sealing cover 22, the gap 221 can be closed by the elastic deformation of the sealing cover 22 itself. This can prevent the washing medium in the inner box body 21 from leaking out of the gap 221. In addition, the guide groove 222 on the sealing cover 22 can be set to a gradient type. As the protrusion 121 is inserted, the gap 221 on the sealing cover 22 can be opened.

[0064] Correspondingly, the inner box body 21 is provided with a groove 213, and the groove 213 is matched with the protrusion 121. This allows the inner box 20 to be installed into the liquid filling housing 10 during the process of the liquid filling inner box 20 being installed. The groove 213 and the protrusion 121 serve as a guide to guide the inner box 20 into the liquid filling housing 10. This facilitates the installation of the inner box 20 into the liquid filling housing 10 and ensures that the protrusion 121 can eventually be inserted into the guide groove 222 of the sealing cover 22 and squeeze the sealing cover 22 to deform.

[0065] like Figure 1 , Figure 3 , Figure 5 and Figure 7 As shown, the drive assembly 30 includes a movable iron core 31, a fixed iron core 32, a winding coil 33, and a push rod 34. The movable iron core 31 is arranged opposite to the fixed iron core 32, and the movable iron core 31 can move towards the fixed iron core 32 under the drive of the magnetic field generated when the winding coil 33 is energized. The push rod 34 passes through the fixed iron core 32 and extends into the liquid filling housing 10. The drive block 50 is connected to one end of the push rod 34 that extends into the liquid filling housing 10, and the other end of the push rod 34 is connected to the movable iron core 31. This specific implementation of the structural arrangement of the drive assembly 30 allows the movable iron core 31 to drive the drive block 50 to move when the drive assembly 30 is working.

[0066] It is understandable that when the liquid filling device is working, the movable iron core 31 is used to push the push rod 34 to push the liquid filling mechanism 40, and to draw out the washing medium on the liquid filling box 20. This has the effect of improving the driving force compared to using a plunger pump to provide the power source.

[0067] It should be noted that the drive assembly 30 also includes a magnetic guide frame 35, and the drive assembly 30 can be specifically mounted and fixed to the lower cover 11 of the liquid filling housing 10 through the magnetic guide frame 35; of course, the drive assembly 30 is not limited to the iron core assembly described above. For those skilled in the art, the drive assembly 30 can be set as a telescopic motor.

[0068] The liquid dispensing device also includes a sealing diaphragm 36, which is disposed between the drive assembly 30 and the liquid dispensing housing 10 to ensure a tight seal between the drive assembly 30 and the liquid dispensing housing 10. A push rod 34 passes through the sealing diaphragm 36. This prevents the washing medium or water from leaking out from the assembly position of the drive assembly 30.

[0069] It should be noted that the sealing diaphragm 36 can be specifically mounted on the push rod 34, so that the push rod 34 can simultaneously drive the sealing diaphragm 36 to expand or contract relative to the liquid filling housing 10 under the drive of the movable iron core 31.

[0070] likeFigure 2 , Figure 4 , Figure 6 and Figure 8 As shown, the liquid filling mechanism 40 includes a connecting housing 41 and a liquid filling rod assembly 42. The connecting housing 41 is detachably mounted on the liquid filling inner box 20. The liquid filling rod assembly 42 is slidably mounted inside the connecting housing 41 and abuts against the drive block 50 to control the opening / closing of the liquid filling inner box 20 and the liquid filling housing 10 under the pushing of the drive block 50. This specific structural arrangement of the liquid filling mechanism 40 allows the liquid filling mechanism 40 to draw out the washing medium in the liquid filling inner box 20 by sliding the liquid filling rod assembly 42 within the connecting housing 41 during operation.

[0071] The liquid filling mechanism 40 also includes a screw sleeve 43. The connecting housing 41 is detachably installed onto the liquid filling inner box 20 through the screw sleeve 43. Specifically, the screw sleeve 43 can be pressed onto the connecting housing 41 and then installed onto the liquid filling inner box 20 by means of threads. This makes it easy for the liquid filling mechanism 40 to be disassembled and assembled relative to the liquid filling inner box 20.

[0072] like Figure 2 , Figure 4 As shown, a connecting bend 411 is connected and communicated with the connecting housing 41, and the connecting housing 41 can draw laundry medium from the liquid filling box 20 through the connecting bend 411. In this way, the connecting bend 411 can be extended to the lowest point of the liquid filling box 20, so that when the liquid filling mechanism 40 is working, it can draw as much laundry medium as possible from the liquid filling box 20.

[0073] A steel ball 412 is movably placed on the connecting housing 41. The steel ball 412 can cooperate with the connecting housing 41 to control the on / off connection between the connecting housing 41 and the liquid filling box 20.

[0074] like Figure 2 , Figure 4 , Figure 6 and Figure 8 As shown, a baffle 413 or a claw 414 is also formed on the connecting housing 41. The baffle 413 and the claw 414 can limit the steel ball 412 to a specific area of ​​the connecting housing 41, so that the steel ball 412 can only move in the specific area. This can meet the usage requirements of the steel ball 412 to control the connection / disconnection between the connecting housing 41 and the liquid filling box 20.

[0075] like Figure 2 , Figure 4 , Figure 6 and Figure 8As shown, the liquid filling rod assembly 42 includes a first liquid filling rod 421, a second liquid filling rod 422, and a piston 423. The first liquid filling rod 421 and the second liquid filling rod 422 are connected and communicate with each other. The first liquid filling rod 421 and the second liquid filling rod 422 cooperate with each other to form a piston mounting part 420. The piston 423 is slidably mounted between the piston mounting part 420 and the connecting housing 41. The second liquid filling rod 422 is provided with a liquid inlet hole 4221. Specifically, the liquid inlet hole 4221 can be set on the outer peripheral wall of the second liquid filling rod 422, and the piston 423 can slide on the piston mounting part 420 to control the opening / closing of the liquid inlet hole 4221.

[0076] Specifically, when the piston 423 moves on the piston mounting part 420 to the area where the second liquid filling rod 422 is located, the piston 423 can block the liquid inlet hole 4221 on the second liquid filling rod 422. During this process, using the pressure difference between the inside and outside of the connecting housing 41, the washing medium in the liquid filling box 20 can be introduced into the connecting housing 41 under the action of the external atmospheric pressure, and the action of sucking the washing medium in the liquid filling box 20 can be achieved. When the piston 423 moves on the piston mounting part 420 to the area where the first liquid filling rod 421 is located, the piston 423 can release the blockage of the liquid inlet hole 4221 on the second liquid filling rod 422. In this way, the washing medium in the connecting housing 41 can enter the second liquid filling rod 422 from the liquid inlet hole 4221, flow through the first liquid filling rod 421 and be discharged to the liquid filling housing 10.

[0077] like Figure 2 , Figure 4 As shown, the liquid filling mechanism 40 also includes a pump head 44, which is connected to and communicates with the first liquid filling rod 421. The pump head 44 has a first liquid outlet 441 that communicates with the liquid filling housing 10. The first liquid outlet 441 communicates with the liquid inlet 4221, so that the washing medium introduced into the second liquid filling rod 422 through the liquid inlet 4221 can pass through the first liquid filling rod 421 into the pump head 44, and finally be discharged into the liquid filling housing 10 through the first liquid outlet 441 on the pump head 44.

[0078] It should be noted that when the above-mentioned liquid filling mechanism 40 is assembled onto the liquid filling inner box 20, the drive component 30 specifically uses the drive block 50 to push the pump head 44, thereby driving the liquid filling rod assembly 42 to move within the connecting housing 41.

[0079] like Figure 6 , Figure 8As shown, the first liquid filling rod 421 has a second liquid outlet 4211, and the connecting housing 41 has a third liquid outlet 415 connected to the connecting housing 41. The third liquid outlet 415 is connected to the liquid inlet 4221 through the second liquid outlet 4211, so that the washing medium introduced into the second liquid filling rod 422 through the liquid inlet 4221 can pass through the first liquid filling rod 421 and be discharged from the second liquid outlet 4211 into the connecting housing 41, and finally discharged into the liquid filling housing 10 through the third liquid outlet 415 on the connecting housing 41.

[0080] It should be noted that when the above-mentioned liquid filling mechanism 40 is assembled onto the liquid filling inner box 20, the drive assembly 30 can directly push the first liquid filling rod 421 of the liquid filling rod assembly 42 using the drive block 50.

[0081] like Figure 2 , Figure 4 , Figure 6 and Figure 8 As shown, the liquid dispensing mechanism 40 also includes an elastic reset member 45, which is fitted onto the first liquid dispensing rod 421 to drive the drive block 50 to elastically reset, thus meeting the operational requirements of the liquid dispensing device. It should be noted that the elastic reset member 45 can specifically be a spring, a rubber sleeve, etc.

[0082] The connecting housing 41 is also equipped with a pressure cap 46. Specifically, the pressure cap 46 can be snapped into the connecting housing 41, and one end of the elastic reset member 45 abuts against the pressure cap 46, while the other end abuts directly against the pump head 44, or against the limiting sleeve 4212 fixedly connected to the first liquid filling rod 421. This allows the drive assembly 30 to push the liquid filling rod assembly 42 to slide within the connecting housing 41 via the drive block 50, thereby compressing the elastic reset member 45. When the winding coil 33 on the drive assembly 30 is de-energized, the compressed elastic reset member 45 can push the drive block 50 in the opposite direction, driving the movable iron core 31 to reset. Of course, the elastic reset member used to drive the movable iron core 31 to reset can also be set between the movable iron core 31 and the fixed iron core 32, which will not be elaborated here.

[0083] In addition, this application also claims protection for a washing machine, including a washing machine body and the aforementioned liquid filling device, the liquid filling device being installed on the washing machine body.

[0084] In summary, the liquid dispensing device and washing machine claimed in this application separate the drive assembly 30 from the liquid dispensing mechanism 40 and use a pumping method to drive the washing medium during operation. This ensures that the drive assembly 30 does not directly contact the washing medium during operation, thus extending its service life. Furthermore, the inner liquid dispensing box 20 is detachably mounted to the liquid dispensing housing 10, allowing the inner box 20 to drive the liquid dispensing mechanism 40 to be removed from the housing 10 during operation. This facilitates subsequent maintenance and replacement of the liquid dispensing device, reducing costs.

[0085] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A liquid dispensing device, characterized in that, The liquid addition device includes: Liquid filling housing (10); A liquid filling inner box (20) is detachably installed inside the liquid filling housing (10), wherein the liquid filling inner box (20) is used to store washing medium; A drive assembly (30) is installed on the liquid filling housing (10). A drive block (50) is connected to the drive assembly (30), and the drive block (50) can reciprocate relative to the liquid filling inner box (20) under the drive of the drive assembly (30). A liquid filling mechanism (40) is installed on the liquid filling inner box (20) and abuts against the drive block (50) to draw the washing medium in the liquid filling inner box (20) into the liquid filling shell (10) under the push of the drive block (50); The liquid filling inner box (20) includes an inner box body (21) and a sealing cover (22). The inner box body (21) has a liquid filling port (211) and a liquid outlet (212). The sealing cover (22) is installed on the inner box body (21) at the location of the liquid filling port (2111) to restrict the washing medium from flowing out of the liquid filling port (211). The liquid filling mechanism (40) is installed on the inner box body (21) at the location of the liquid outlet (212) to control the connection / disconnection between the inner box body (21) and the liquid filling shell (10). The sealing cap (22) is configured as an elastic element, wherein the sealing cap (22) has a slit (221) and a guide groove (222), the slit (221) penetrating the sealing cap (22); the liquid filling housing (10) is provided with a protrusion (121), the protrusion (121) being able to insert into the guide groove (222) and squeeze the sealing cap (22) to deform, so as to open the slit (221) and make the inner box body (21) communicate with the outside air; The liquid filling mechanism (40) includes a connecting housing (41) and a liquid filling rod assembly (42). The connecting housing (41) is detachably installed on the liquid filling inner box (20). The liquid filling rod assembly (42) is slidably installed inside the connecting housing (41) and abuts against the driving block (50) to control the connection / disconnection between the liquid filling inner box (20) and the liquid filling housing (10) under the pushing of the driving block (50). The liquid filling rod assembly (42) includes a first liquid filling rod (421), a second liquid filling rod (422), and a piston (423). The first liquid filling rod (421) and the second liquid filling rod (422) are connected and communicate with each other. The first liquid filling rod (421) and the second liquid filling rod (422) cooperate with each other to form a piston mounting part (420). The piston (423) is slidably mounted between the piston mounting part (420) and the connecting housing (41). The second liquid filling rod (422) has a liquid inlet hole (4221), and the piston (423) can slide on the piston mounting part (420) to control the opening / closing of the liquid inlet hole (4221). When the piston (423) moves on the piston mounting part (420) to the area where the second liquid filling rod (422) is located, the piston (423) blocks the liquid inlet hole (4221), and the washing medium in the liquid filling inner box (20) can be introduced into the connecting housing (41) under the action of external atmospheric pressure; when the piston (423) moves on the piston mounting part (420) to the area where the first liquid filling rod (421) is located, the piston (423) releases the blockage of the liquid inlet hole (4221), and the washing medium in the connecting housing (41) enters the second liquid filling rod (422) through the liquid inlet hole (4221) and is discharged to the liquid filling housing (10).

2. The liquid addition device according to claim 1, characterized in that, The drive assembly (30) includes a movable iron core (31), a fixed iron core (32), a winding coil (33), and a push rod (34). The movable iron core (31) is arranged opposite to the fixed iron core (32), and the movable iron core (31) can move toward the fixed iron core (32) under the drive of the magnetic field generated when the winding coil (33) is energized. The push rod (34) passes through the fixed iron core (32) and extends into the liquid filling housing (10). The drive block (50) is connected to one end of the push rod (34) that extends into the liquid filling housing (10). The other end of the push rod (34) is connected to the movable iron core (31).

3. The liquid addition device according to claim 2, characterized in that, The liquid dispensing device further includes a sealing diaphragm (36), which is disposed between the drive assembly (30) and the liquid dispensing housing (10) to ensure that the drive assembly (30) and the liquid dispensing housing (10) are assembled and sealed. The push rod (34) is disposed through the sealing diaphragm (36).

4. The liquid addition device according to claim 1, characterized in that, The liquid adding mechanism (40) further includes a pump head (44), which is connected and communicates with the first liquid adding rod (421). The pump head (44) has a first liquid outlet (441) communicating with the connecting housing (41), and the first liquid outlet (441) is communicated with the liquid inlet (4221). Alternatively, a second outlet hole (4211) is provided on the first liquid filling rod (421), and a third outlet hole (415) is provided on the connecting housing (41) that communicates with the liquid filling housing (10). The third outlet hole (415) communicates with the inlet hole (4221) through the second outlet hole (4211).

5. The liquid addition device according to claim 1, characterized in that, The liquid filling mechanism (40) also includes an elastic reset member (45), which is fitted onto the first liquid filling rod (421) to drive the drive block (50) to elastically reset.

6. A washing machine, characterized in that, The washing machine includes a washing machine body and a liquid filling device according to any one of claims 1-5, wherein the liquid filling device is installed on the washing machine body.

Images