Drainage box device and clothes processing equipment

Abstract

The utility model belongs to the technical field of clothes processing equipment, and discloses a drainage box device and clothes processing equipment. The drainage box device comprises a drainage box and cover plate assemblies, a water storage cavity is formed in the drainage box, a plurality of water inlets are formed in the top of the drainage box and communicate with the treatment barrels in a one-to-one correspondence mode, a drainage opening is formed in the bottom of the drainage box, the cover plate assemblies are arranged at the positions of at least one water inlet, and the cover plate assemblies can selectively open or close the corresponding water inlets. The cover plate assembly can be flushed open by water flow when the water flow passes through the water inlet, and can close at least one water inlet when no water flow passes through the water inlet and the water level in the drainage cavity reaches the water inlet, so that washing water in the water storage cavity is prevented from flowing back into the treatment barrel; the phenomenon that water is mixed among a plurality of treatment drums in the drainage process is effectively prevented, secondary pollution of clothes is avoided, and the washing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing treatment equipment, in particular to a drainage box device and clothing treatment equipment. Background Art

[0002] In recent years, as one of the essential household appliances, the demand for washing machines has been increasing, and at the same time, the requirement for their diversity has also been getting higher. Along with the demand for separating clothes treatment in washing machines, there are more and more multi-tub washing machines on the market, especially the double-tub washing machines with an upper and a lower tub arrangement.

[0003] When the existing double-tub washing machine is in use, if the upper tub finishes washing and starts draining, the washing water flows into the drainage box through a water pipe and then drains out through the drain pipe. Since the drain outlets of both the upper tub and the lower tub are connected to the drainage box, when the drainage volume is large, the water level in the drainage box rises rapidly, and the water in the drainage box is likely to flow back to the upper tub or the lower tub along the water inlet, causing the problem of water cross-flow, affecting the washing effect, and causing secondary pollution of the clothes.

[0004] Therefore, there is an urgent need for a drainage box device and clothing treatment equipment to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a drainage box device, which effectively prevents the phenomenon of water cross-flow between multiple treatment drums during the drainage process, avoids secondary pollution of clothes, and improves the washing effect.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A drainage box device is arranged in a clothing treatment equipment, and the clothing treatment equipment includes multiple treatment drums. The drainage box device is characterized in that it includes:

[0008] A drainage box, which is provided with a water storage cavity inside. The top of the drainage box is provided with a plurality of water inlets, and the plurality of water inlets are in one-to-one correspondence and communication with the plurality of treatment drums. The bottom of the drainage box is provided with a drain outlet;

[0009] A cover plate assembly, and the cover plate assembly is provided at at least one of the water inlets. The cover plate assembly is configured to selectively open or close the corresponding water inlet, ensure that the cover plate assembly can be washed open by water flow when there is water flow through the water inlet, and when there is no water flow through the water inlet and the water level in the drainage cavity reaches the water inlet, the cover plate assembly can close at least one water inlet, avoiding the washing water in the water storage cavity from flowing back into the treatment drum, effectively preventing the phenomenon of water cross-flow between multiple treatment drums during the drainage process, avoiding secondary pollution of clothes, and improving the washing effect.

[0010] Optionally, the cover plate assembly includes a cover plate and a driving member. The cover plate is rotatably connected to the side wall of the water inlet, and the driving member is configured to drive the cover plate to block the water inlet. When the treatment cylinder drains water, the impact force of the water flow can overcome the driving force of the driving member and flush open the cover plate to ensure that the water inlet is opened. When there is no water flow through the water inlet, the driving member drives the cover plate to block the water inlet. The driving member in the cover plate assembly can automatically adjust the opening and closing of the cover plate according to the water flow condition to ensure smooth drainage, effectively prevent the washing water from flowing between different treatment cylinders, and ensure the washing effect of each treatment cylinder.

[0011] Optionally, the driving member includes a counterweight. A blocking portion is provided on the cover plate, and the counterweight and the blocking portion are respectively located on both sides of the rotation axis of the cover plate. When there is water flow through the water inlet, the pressure of the water flow can overcome the gravity of the counterweight and drive the cover plate to rotate in the opening direction, so that the water flow enters the water storage cavity. When there is no water flow through the water inlet, under the action of the gravity of the counterweight, the cover plate can be driven to rotate in the closing direction, so that the blocking portion blocks the water inlet.

[0012] And / or, the driving member includes a torsion elastic member. The torsion elastic member is coaxially arranged with the rotation axis of the cover plate. One end of the torsion elastic member abuts against the cover plate, and the other end abuts against the side wall of the water inlet. Through the torsion force provided by the torsion elastic member, when there is no water flow through the water inlet, the cover plate can block the water inlet. When there is water flow through the water inlet, the pressure of the water flow can overcome the torsion force of the torsion elastic member, so that the cover plate rotates in the opening direction, allowing the water flow to enter the water storage cavity. And when the water level in the water storage cavity reaches the water inlet, under the combined action of the pressure in the water storage cavity and the torsion elastic member, the cover plate blocks the drain port, preventing the water in the water storage cavity from flowing back into the treatment cylinder, avoiding cross-water flow between multiple treatment cylinders, avoiding secondary pollution of clothes, and improving the washing effect.

[0013] Optionally, the driving member includes a floating block, and the floating block is located at one end of the cover plate away from the counterweight. When the water level in the water storage cavity reaches the water inlet, the buoyancy of the floating block can increase the closing speed of the cover plate, effectively avoiding the phenomenon of cross-water flow between multiple treatment cylinders.

[0014] Exemplarily, taking two water inlets provided at the top of the drain box, defining the two water inlets as the first water inlet and the second water inlet respectively, the first water inlet and the second water inlet are respectively connected to the first treatment cylinder and the second treatment cylinder arranged up and down in the double-tub washing machine, and a first cover plate and a first counterweight are provided at the first water inlet, and a second cover plate and a second counterweight are provided at the second water inlet as an example, the anti-cross-water flow principle of the drain box device in this embodiment will be described in detail.

[0015] First, when the first treatment cylinder drains water into the water storage cavity alone, water flows through the first water inlet, and the first cover plate at the first water inlet is washed open by the water flow. However, there is no water flow through the second water inlet, and the second cover plate at the second water inlet blocks the second water inlet, thereby preventing the washing water in the drainage cavity from flowing back into the second treatment cylinder through the second water inlet and preventing the first treatment cylinder and the second treatment cylinder from cross-flowing water.

[0016] Second, when the second treatment cylinder drains water into the water storage cavity alone, the principle of preventing cross-flow of water is the same as that when the first treatment cylinder drains water into the water storage cavity alone, and will not be elaborated here.

[0017] Third, when the first treatment cylinder and the second treatment cylinder drain water into the water storage cavity at the same time, it should be noted that since the first treatment cylinder and the second treatment cylinder are arranged vertically in the double-tub washing machine, the heights of the washing water in the first treatment cylinder and the second treatment cylinder are different, and the gravitational potential energies of the washing water in the first treatment cylinder and the second treatment cylinder are different. Therefore, when the washing water in the first treatment cylinder and the second treatment cylinder enters the water storage cavity, the water pressures at the first water inlet and the second water inlet are different.

[0018] Therefore, when the first treatment cylinder and the second treatment cylinder drain water into the water storage cavity at the same time, the first cover plate at the first water inlet and the second cover plate at the second water inlet are both washed open by the water flow. When the washing water in the water storage cavity is not drained in time, the water level in the water storage cavity rises to the first water inlet and the second water inlet. Under the action of the pressure in the water storage cavity, the water inlet with the smaller water pressure among the first water inlet and the second water inlet will be closed, thereby preventing the first treatment cylinder and the second treatment cylinder from cross-flowing water.

[0019] Optionally, a sealing gasket is provided on the blocking portion. The setting of the sealing gasket can improve the sealing effect of the cover plate when the cover plate closes the water inlet, and further prevent the washing water from flowing back into the treatment cylinder.

[0020] Optionally, the cover plate assembly includes a pin shaft. A first connecting portion is provided on the cover plate, a second connecting portion is provided on the side wall of the water inlet, first pin holes and second pin holes are respectively provided on the first connecting portion and the second connecting portion, and the pin shaft sequentially passes through the first pin hole and the second pin hole. The structure of this cover plate assembly is simple, convenient for installation and maintenance, and effectively saves production costs.

[0021] Optionally, the drain box device further includes:

[0022] A water inlet pipe, one end of the water inlet pipe can communicate with the treatment cylinder, the other end can communicate with the water inlet, and at least part of the water inlet pipe is located in the water storage cavity;

[0023] A drain switch is provided on the water inlet pipe. The drain switch is used to open or close the water outlet of the treatment cylinder, thereby adjusting the flow rate and velocity of the washing water in the water inlet pipe, and further precisely adjusting the water inlet pressure at the water inlet.

[0024] In this embodiment, the water inlet pipe includes a first water inlet pipe and a second water inlet pipe. One end of the first water inlet pipe is connected to the first treatment cylinder, and the other end can be connected to the first water inlet. One end of the second water inlet pipe is connected to the second treatment cylinder, and the other end is connected to the second water inlet. The first water inlet pipe and the second water inlet pipe are respectively provided with a first drain switch and a second drain switch, so as to precisely adjust the water inlet pressure at the first water inlet and the water inlet pressure at the second water inlet.

[0025] Optionally, the drain switch includes a drain valve and / or a drain pump. Specifically, since the position of the first treatment cylinder is higher than that of the second treatment cylinder, only a drain valve is provided on the first drain pipe. By opening the drain valve, the washing water in the first drain cylinder can enter the water storage cavity by gravity. However, the position of the second treatment cylinder is lower than that of the first treatment cylinder. Therefore, relying solely on the gravity of the washing water in the second treatment cylinder, the drainage speed is relatively slow. A drain pump can be provided on the second water inlet pipe to increase the drainage speed. In other embodiments, a drain valve or a drain pump can be provided on the water inlet pipe according to actual needs, or both a drain valve and a drain pump can be provided simultaneously.

[0026] Optionally, the drain box device further includes a water level detection member. The water level detection member is arranged in the water storage cavity and is used to detect the water level in the water storage cavity, and the water level detection member is communicatively connected to the drain switch. Specifically, a water level detection member is arranged at the preset water level in the water storage cavity. The preset water level can be understood as the water level when the water level in the water storage cavity is about to reach the water outlet. When the water level in the water storage cavity exceeds the preset water level, it means that the washing water in the water storage box has not been drained in time and there is a risk of water cross-flow. At this time, the water level detection member feeds back the water level signal to the drain switch, and the drain switch closes the water outlet of the treatment cylinder.

[0027] Another object of the present utility model is to provide a laundry treatment device, which effectively prevents the phenomenon of water cross-flow between multiple treatment cylinders during the drainage process, avoids secondary pollution of clothes, and improves the washing effect.

[0028] To achieve this purpose, the present utility model adopts the following technical solutions:

[0029] A laundry treatment device includes a plurality of treatment cylinders and the above-mentioned drain box device. The drain box device is used to collect and treat the washing water discharged from the plurality of treatment cylinders.

[0030] Beneficial effects:

[0031] The drainage box device provided by the present utility model includes a drainage box and a cover plate assembly. A water storage cavity is provided in the drainage box. A plurality of water inlets are provided at the top of the drainage box, and the plurality of water inlets are in one-to-one correspondence and communication with a plurality of treatment cylinders. A drainage outlet is provided at the bottom of the drainage box. A cover plate assembly is provided at at least one water inlet. The cover plate assembly can selectively open or close at least one water inlet, ensuring that the cover plate assembly can be washed open by water flow when there is water flow through the water inlet, and when there is no water flow through the water inlet and the water level in the water storage cavity reaches the water inlet, the cover plate assembly can close at least one water inlet, avoiding the backflow of the washing water in the water storage cavity into the treatment cylinder, effectively preventing the phenomenon of water cross-flow between multiple treatment cylinders during the drainage process, avoiding secondary pollution of clothes, and improving the washing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. 6 is a schematic structural diagram of the drainage box device provided in Embodiment 1 of the present utility model;

[0033] Figure 2 FIG. 10 is a schematic structural diagram of the drainage box device provided in Embodiment 1 of the present utility model when the first water inlet is open and the second water inlet is closed;

[0034] Figure 3 FIG. 14 is a schematic structural diagram of the drainage box device provided in Embodiment 1 of the present utility model when the first water inlet is closed and the second water inlet is open.

[0035] In the figure:

[0036] 100, drainage box; 1001, water storage cavity; 110, water inlet; 111, first water inlet; 112, second water inlet; 120, water outlet;

[0037] 200, cover plate assembly; 210, cover plate; 2101, plugging portion; 211, first cover plate; 212, second cover plate; 220, counterweight; 221, first counterweight; 222, second counterweight;

[0038] 300, treatment cylinder; 310, first treatment cylinder; 320, second treatment cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0040] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0042] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] Embodiment 1

[0044] This embodiment provides a drainage box device, which is arranged inside a laundry treatment device. The laundry treatment device includes a plurality of treatment drums 300, such as Figure 1As shown, the drainage box device includes a drainage box 100 and a cover plate assembly 200. A water storage cavity 1001 is provided inside the drainage box 100. A plurality of water inlets 110 are provided at the top of the drainage box 100. The plurality of water inlets 110 are in one-to-one correspondence and communication with a plurality of treatment cylinders 300. A drainage outlet is provided at the bottom of the drainage box 100. A cover plate assembly 200 is provided at at least one water inlet 110. The cover plate assembly 200 can selectively open or close the corresponding water inlet 110, ensuring that the cover plate assembly 200 can be washed open by the water flow when there is water flow through the water inlet 110, and when there is no water flow through the water inlet 110 and the water level in the water storage cavity reaches the water inlet 110, the cover plate assembly 200 can close at least one water inlet 110, avoiding the washing water in the water storage cavity 1001 from flowing back into the treatment cylinder 300, effectively preventing the phenomenon of water cross-flow between the plurality of treatment cylinders 300 during the drainage process, avoiding secondary pollution of the clothes, and improving the washing effect.

[0045] Optionally, the cover plate assembly 200 includes a cover plate 210 and a driving member. The cover plate 210 is rotatably connected to the water inlet pipe. The driving member can drive the cover plate 210 to block the water inlet 110. It can be understood that when the treatment cylinder 300 drains water, the impact force of the water flow can overcome the driving force of the driving member and wash open the cover plate 210 to ensure that the water inlet 110 is opened. When there is no water flow through the water inlet 110, the driving member drives the cover plate 210 to block the water inlet 110. The driving member in the cover plate assembly 200 can automatically adjust the opening and closing of the cover plate 210 according to the water flow situation to ensure smooth drainage, and effectively prevent the washing water from flowing between different treatment cylinders 300, ensuring the washing effect of each treatment cylinder 300.

[0046] Optionally, the driving member includes a counterweight 220. A blocking portion 2101 is provided on the cover plate 210. The counterweight 220 and the blocking portion 2101 are respectively located on both sides of the rotation axis of the cover plate 210. When there is water flow through the water inlet 110, the water pressure can overcome the gravity of the counterweight 220 and drive the cover plate 210 to rotate in the opening direction, so that the water flow enters the water storage cavity 1001. When there is no water flow through the water inlet 110, under the action of the gravity of the counterweight 220, the cover plate 210 can be driven to rotate in the closing direction, so that the blocking portion 2101 blocks the water inlet 110.

[0047] Exemplarily, such as Figures 1 - 3As shown in the figure, two water inlets 110 are provided at the top of the drainage box 100. The two water inlets 110 are defined as the first water inlet 111 and the second water inlet 112 respectively. The first water inlet 111 and the second water inlet 112 are respectively connected to the first treatment cylinder 310 and the second treatment cylinder 320 arranged up and down in the double-tub washing machine. And a first cover plate 211 and a first counterweight 221 are provided at the first water inlet 111, and a second cover plate 212 and a second counterweight 222 are provided at the second water inlet 112. Taking this as an example, the anti-cross-water principle of the drainage box device in this embodiment will be described in detail.

[0048] First, as Figure 2 shown, when the first treatment cylinder 310 drains water into the water storage cavity 1001 alone, there is water flow through the first water inlet 111, and the first cover plate 211 at the first water inlet 111 is washed open by the water flow, while there is no water flow through the second water inlet 112, and the second cover plate 212 at the second water inlet 112 blocks the second water inlet 112, thereby preventing the washing water in the drainage cavity from flowing back into the second treatment cylinder 320 through the second water inlet 112, and preventing the first treatment cylinder 310 and the second treatment cylinder 320 from cross-watering each other.

[0049] Second, as Figure 3 shown, when the second treatment cylinder 320 drains water into the water storage cavity 1001 alone, the anti-cross-water principle is the same as when the first treatment cylinder 310 drains water into the water storage cavity 1001 alone, and will not be elaborated here.

[0050] Third, when the first treatment cylinder 310 and the second treatment cylinder 320 drain water into the water storage cavity 1001 at the same time, it should be noted that since the first treatment cylinder 310 and the second treatment cylinder 320 are arranged up and down in the double-tub washing machine, the heights of the washing water in the first treatment cylinder 310 and the second treatment cylinder 320 are different, and the gravitational potential energies of the washing water in the first treatment cylinder 310 and the second treatment cylinder 320 are different. Therefore, when the washing water in the first treatment cylinder 310 and the second treatment cylinder 320 enters the water storage cavity 1001, the water pressures at the first water inlet 111 and the second water inlet 112 are different.

[0051] Therefore, when the first treatment cylinder 310 and the second treatment cylinder 320 drain water into the water storage cavity 1001 at the same time, the first cover plate 211 at the first water inlet 111 and the second cover plate 212 at the second water inlet 112 are both washed open by the water flow. When the washing water in the water storage cavity 1001 is not drained in time, the water level in the water storage cavity 1001 rises to the first water inlet 111 and the second water inlet 112. Under the action of the pressure in the water storage cavity 1001, the one with the smaller water pressure in the first water inlet 111 and the second water inlet 112 will be closed, thereby preventing the first treatment cylinder 310 and the second treatment cylinder 320 from cross-watering each other.

[0052] Optionally, a sealing gasket is provided on the blocking portion 2101. The provision of the sealing gasket can improve the sealing effect of the cover plate 210 when the cover plate 210 closes the water inlet 110, and further prevent the washing water from flowing back into the treatment cylinder 300.

[0053] Optionally, the cover plate assembly 200 includes a pin shaft. A first connection portion is provided on the cover plate 210, and a second connection portion is provided on the side wall of the water inlet 110. A first pin hole and a second pin hole are respectively provided on the first connection portion and the second connection portion, and the pin shaft is sequentially inserted through the first pin hole and the second pin hole. The structure of the cover plate assembly 200 is simple, facilitating installation and maintenance, and effectively saving production costs.

[0054] Embodiment 2

[0055] This embodiment is basically the same as Embodiment 1. The difference from Embodiment 1 is that only a first cover plate 211 and a first counterweight 221 are provided at the first water inlet 111. The three drainage scenarios are as follows:

[0056] Firstly, when the first treatment cylinder 310 drains water into the water storage chamber 1001, the first cover plate 211 at the first water inlet 111 is flushed open. When the water level in the water storage chamber 1001 rises to the first water inlet 111 and the second water inlet 112, under the combined action of the water pressure in the water storage chamber 1001 and the counterweight, the first cover plate 211 is driven to block the first water inlet 111, so that the water level in the water storage chamber 1001 no longer rises, and the washing water in the water storage chamber 1001 is prevented from flowing back into the second treatment cylinder 320 through the second water inlet 112, thereby avoiding cross - flow of water between the first treatment cylinder 310 and the second treatment cylinder 320.

[0057] Secondly, when the second treatment cylinder 320 drains water into the water storage chamber 1001 alone, the cover plate 210 at the first water inlet 111 is in a closed state under the action of the first counterweight 221. Therefore, even when the water level in the water storage chamber 1001 rises to the first water inlet 111 and the second water inlet 112, the washing water in the water storage chamber 1001 will not flow back into the first treatment cylinder 310, avoiding cross - flow of water between the first treatment cylinder 310 and the second treatment cylinder 320.

[0058] Thirdly, the first treatment cylinder 310 and the second treatment cylinder 320 drain water into the water storage cavity 1001 respectively, and the first cover plate 211 at the first water inlet 111 is flushed open. When the water level in the water storage cavity 1001 rises to the positions of the first water inlet 111 and the second water inlet 112, under the combined action of the water pressure in the water storage cavity 1001 and the counterweight 221, the first cover plate 211 is driven to block the first water inlet 111. At this time, even if the second water inlet 112 continues to drain water into the water outlet cavity, the first cover plate 211 has blocked the first water inlet 111, so the water in the water outlet cavity will not flow back to the first treatment cylinder 310, avoiding the cross-flow of water between the first treatment cylinder 310 and the second treatment cylinder 320.

[0059] In another embodiment, only a second cover plate 212 and a second counterweight 222 are provided at the second water inlet 112. The principle of preventing cross-flow of water is the same as that of only providing the first cover plate 211 and the first counterweight 221 at the first water inlet 111, and will not be elaborated here.

[0060] Embodiment III

[0061] This embodiment provides a drain box device, which is basically the same as Embodiment I. The difference from Embodiment I is that the driving member includes a torsional elastic member, and the torsional elastic member is coaxially arranged with the rotation axis of the cover plate 210. One end of the torsional elastic member abuts against the cover plate 210, and the other end abuts against the side wall of the water inlet 110. Through the torsional force provided by the torsional elastic member, when there is no water flow through the water inlet 110, the cover plate 210 can block the water inlet 110. When there is water flow through the water inlet 110, the pressure of the water flow can overcome the torsion of the torsional elastic member, so that the cover plate 210 rotates in the opening direction, allowing the water flow to enter the water storage cavity 1001. And when the water level in the water storage cavity 1001 reaches the water inlet 110, under the combined action of the pressure in the water storage cavity 1001 and the torsional elastic member, the cover plate 210 blocks the drain port, preventing the water in the water storage cavity 1001 from flowing back into the treatment cylinder 300, avoiding cross-flow of water between multiple treatment cylinders 300, avoiding secondary pollution of clothes, and improving the washing effect.

[0062] Optionally, the torsional elastic member is a torsion spring. The torsion spring is sleeved on the pin shaft. One end of the torsion spring abuts against the cover plate 210, and the other end abuts against the side wall of the water inlet 110, so as to provide torsional elastic force for the cover plate 210. The structure of the torsional elastic member is simple and the elastic force is strong, which can ensure that the water inlet 110 is closed in time when there is no water flow through the water inlet 110.

[0063] Embodiment IV

[0064] This embodiment provides a drainage box device, which is basically the same as Embodiment 1. The difference from Embodiment 1 is that the driving member includes a counterweight 220 and a torsional elastic member. The counterweight 220 and the blocking portion 2101 are respectively located on both sides of the rotation axis of the cover plate 210. The torsional elastic member is coaxially arranged with the rotation axis of the cover plate 210. One end of the torsional elastic member abuts against the cover plate 210, and the other end abuts against the side wall of the water inlet 110. Both the counterweight 220 and the torsional elastic member can apply a driving force to the cover plate 210 to rotate in the closing direction. Therefore, through this dual driving mechanism, it can be ensured that when there is no water flow through the water inlet 110, the water inlet 110 is completely closed by the cover plate 210.

[0065] Embodiment 5

[0066] This embodiment provides a drainage box device, which is basically the same as Embodiment 1. The difference from Embodiment 1 is that the driving member further includes a floating body block. The floating body block is located at one end of the cover plate 210 away from the counterweight 220. When the water level in the water storage cavity 1001 reaches the water inlet 110, the buoyancy of the floating body block can increase the closing speed of the cover plate 210, thereby effectively avoiding the phenomenon of water cross-flow between multiple treatment cylinders 300.

[0067] Embodiment 6

[0068] This embodiment provides a drainage box device, which is basically the same as Embodiment 1. The difference from Embodiment 1 is that the drainage box device further includes a water inlet pipe and a drainage switch. One end of the water inlet pipe can be connected to the treatment cylinder 300, and the other end can be connected to the water inlet 110. The drainage switch is arranged on the water inlet pipe. The drainage switch is used to open or close the water outlet 120 of the treatment cylinder 300, so as to adjust the flow rate and velocity of the washing water in the water inlet pipe, and further accurately adjust the water inlet pressure at the water inlet 110.

[0069] In this embodiment, the water inlet pipe includes a first water inlet pipe and a second water inlet pipe. One end of the first water inlet pipe is connected to the first treatment cylinder 310, and the other end can be connected to the first water inlet 111. One end of the second water inlet pipe is connected to the second treatment cylinder 320, and the other end is connected to the second water inlet 112. The first water inlet pipe and the second water inlet pipe are respectively provided with a first drainage switch and a second drainage switch, so as to accurately adjust the water inlet pressure of the first water inlet 111 and the water inlet pressure of the second water inlet 112.

[0070] Optionally, both the first water inlet pipe and the second water inlet pipe have a part inserted into the water storage cavity 1001. The first cover plate 211 and the second cover plate 212 are respectively rotatably connected to the ends of the first water inlet pipe and the second water inlet pipe.

[0071] Optionally, the drain switch includes a drain valve and / or a drain pump. Specifically, since the position of the first treatment cylinder 310 is higher than that of the second treatment cylinder 320, only a drain valve is provided on the first drain pipe. By opening the drain valve, the washing water in the first drain cylinder can enter the water storage cavity 1001 by the gravity of the washing water. However, the position of the second treatment cylinder 320 is lower than that of the first treatment cylinder 310. Therefore, the drainage speed is relatively slow only relying on the gravity of the washing water in the second treatment cylinder 320. A drain pump can be provided on the second water inlet pipe to improve the drainage speed. In other embodiments, a drain valve or a drain pump can be provided on the water inlet pipe according to actual needs, or both a drain valve and a drain pump can be provided.

[0072] Further, the drain box device further includes a drain switch and a water level detection component. The drain switch is disposed on the water inlet pipe. The water level detection component is disposed in the water storage cavity 1001 and is used to detect the water level in the water storage cavity 1001, and the water level detection component is communicatively connected to the drain switch. Specifically, a water level detection component is provided at a preset water level of the water storage cavity 1001. The preset water level can be understood as the water level when the water level in the water storage cavity 1001 is about to reach the drain outlet. When the water level in the water storage cavity 1001 exceeds the preset water level, it indicates that the washing water in the water storage box has not been drained in time and there is a risk of water cross-flow. At this time, the water level detection component feeds back a water level signal to the drain switch, and the drain switch closes the water outlet 120 of the treatment cylinder 300.

[0073] It should be noted that the drain box device includes a controller. The drain switch and the water level detection component are respectively communicatively connected to the controller. The water level detection component feeds back the detected water level signal to the controller, and the controller controls the drain switch to open or close. Among them, the controller can be a centralized or distributed controller. For example, the controller can be a single separate microcontroller, or can be composed of multiple distributed microcontrollers. A control program can run in the microcontroller, and then control the opening and closing of the water switch according to the detection signal of the water level detection component. In this embodiment, the connection circuit between the drain switch and the controller, and the connection circuit between the water level detection component and the controller are well-known technical means to those skilled in the art and will not be elaborated here.

[0074] Optionally, the water level detection component includes a liquid level sensor, specifically a capacitive liquid level sensor or a resistive liquid level sensor. These sensors can effectively detect the change of the water level in the water storage cavity 1001, and accurately control the opening and closing action of the drain switch according to the detected water level condition to ensure the smooth drainage process of the washing machine.

[0075] In one embodiment, the water level detection component can be a float type liquid level switch, which detects the height of the water level in the water storage cavity 1001 by the floating and sinking of the float. When the water level rises to the preset water level, the float floats accordingly, triggering the switch action, thereby controlling the opening and closing state of the drain switch.

[0076] In another embodiment, a liquid level sensor and a float type liquid level switch can be set simultaneously to implement a dual water level detection mechanism. The liquid level sensor can provide more accurate and real-time water level monitoring, while the float type liquid level switch can be used as a backup or auxiliary means to increase the reliability of detection.

[0077] Embodiment VII

[0078] This embodiment provides a laundry treatment device, including a plurality of treatment drums 300 and the drainage box device in any of the above embodiments. The drainage box device is used to collect and treat the washing water discharged from the plurality of treatment drums 300, so as to prevent the phenomenon of water cross-flow between the plurality of treatment drums 300, avoid secondary pollution of clothes, and improve the washing effect.

[0079] Specifically, the laundry treatment device includes two treatment drums 300, which are respectively a first treatment drum 310 and a second treatment drum 320. The first treatment drum 310 and the second treatment drum 320 are respectively connected to the first water inlet 111 and the second water inlet 112 of the drainage box 100 through a first water inlet pipe and a second water inlet pipe. A first cover plate 211 and a first counterweight 221 are provided at the first water inlet 111, and a second cover plate 212 and a second counterweight 222 are provided at the second water inlet 112. During the drainage process, whether the first treatment drum 310 and the second treatment drum 320 drain water into the water storage cavity 1001 simultaneously or separately, due to the blocking effect of the first cover plate 211 and the second cover plate 212 on the first water inlet 111 and the second water inlet 112, the first treatment drum 310 and the second treatment drum 320 can be prevented from cross-flowing with each other. For the specific blocking principle, refer to Embodiment I, which will not be elaborated here.

[0080] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A drainage box device, arranged in a clothes processing device, wherein the clothes processing device comprises a plurality of processing drums (300), characterized in that: The drainage box device comprises: A drainage box (100), wherein a water storage chamber (1001) is provided in the drainage box (100), a plurality of water inlets (110) are provided at the top of the drainage box (100), the plurality of water inlets (110) are connected to the plurality of treatment cylinders (300) in a one-to-one correspondence, and a drainage outlet is provided at the bottom of the drainage box (100); A cover plate assembly (200) is provided at at least one of the water inlets (110), and the cover plate assembly (200) is configured to selectively open or close the corresponding water inlet (110).

2. The drainage box device according to claim 1, characterized in that: The cover plate assembly (200) comprises a cover plate (210) and a driving member, wherein the cover plate (210) is rotatably connected to a side wall of the water inlet (110), and the driving member is configured to drive the cover plate (210) to block the water inlet (110).

3. The drainage box device according to claim 2, characterized in that: The driving member comprises a counterweight block (220), and a blocking portion (2101) is provided on the cover plate (210), wherein the counterweight block (220) and the blocking portion (2101) are respectively located on two sides of a rotation axis of the cover plate (210); And / or, the driving member comprises a torsion elastic member, the torsion elastic member is coaxially arranged with the rotation axis of the cover plate (210), one end of the torsion elastic member abuts against the cover plate (210), and the other end abuts against the side wall of the water inlet (110).

4. The drainage box device according to claim 3, characterized in that: The driving member comprises a floating block, and the floating block is located at an end of the cover plate (210) away from the counterweight block (220).

5. The drainage box device according to claim 3, characterized in that: A sealing gasket is provided on the sealing portion (2101).

6. The drainage box device according to claim 2, characterized in that: The cover plate assembly (200) comprises a pin shaft, a first connecting portion is provided on the cover plate (210), a second connecting portion is provided on the side wall of the water inlet (110), a first pin hole and a second pin hole are provided on the first connecting portion and the second connecting portion respectively, and the pin shaft is sequentially inserted into the first pin hole and the second pin hole.

7. The drainage box device according to claim 2, characterized in that: The drainage box device also includes: a water inlet pipe, one end of which can be in communication with the treatment cylinder (300), and the other end of which can be in communication with the water inlet (110), and at least a portion of which is located in the water storage chamber (1001); A drainage switch, the drainage switch is arranged on the water inlet pipe, and the drainage switch is used to open or close the water outlet (120) of the treatment cylinder (300).

8. The drainage box device according to claim 7, characterized in that: The drainage switch includes a drainage valve and / or a drainage pump.

9. The drainage box device according to claim 7, characterized in that: The drainage box device also includes a water level detection component, which is arranged in the water storage chamber (1001) and is used to detect the water level in the water storage chamber (1001), and the water level detection component is communicatively connected with the drainage switch.

10. A clothes processing device, characterized in that: It comprises a plurality of treatment barrels (300) and a drainage box device as described in any one of claims 1 to 9, wherein the drainage box device is used for collecting and treating washing water discharged from the plurality of treatment barrels (300).

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