Detergent box assembly and clothes processing equipment

Abstract

The invention provides a detergent box assembly and clothes processing equipment. The detergent box assembly comprises a water inlet valve; a first cavity, a putting pipeline and an air inlet channel are arranged in the box body at intervals, the putting pipeline comprises a Venturi tube, the Venturi tube comprises a liquid inlet, a liquid outlet and a negative pressure port, the liquid inlet is communicated with the water inlet valve and / or the first cavity, the liquid outlet is communicated with the inner cylinder, and the negative pressure port is communicated with the negative pressure port. One end of the air inlet channel communicates with the negative pressure opening, and the other end of the air inlet channel communicates with the side, away from the ground, of the outer cylinder; wherein the first chamber is used for storing a detergent. According to the detergent box assembly, the negative pressure opening of the venturi tube of the putting pipeline communicates with the outer cylinder, the air suction requirement of the negative pressure opening is met, external dust is prevented from entering the negative pressure opening, and the cleanliness of the negative pressure opening is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of washing machines, and in particular, relates to a detergent box assembly and a clothing processing device. Background Art

[0002] In order to improve the foaming rate of detergent, existing washing machines usually add a venturi tube in the detergent delivery pipeline. The negative pressure pipe of the venturi tube is directly connected to the outside atmosphere. When the detergent solution flows through the venturi tube, negative pressure is generated to cause the negative pressure pipe to absorb external gas, thereby increasing the bubble content in the detergent solution and improving the foaming rate of the detergent.

[0003] However, the negative pressure pipe is directly connected to the outside atmosphere for a long time, which easily causes the accumulation of dust or impurities, thereby polluting the detergent solution and affecting the washing effect. Summary of the invention

[0004] The embodiments of the present application provide a detergent box assembly and a clothing processing device to solve the problem that the negative pressure pipe of the Venturi tube in the existing washing machine detergent delivery pipeline is directly connected to the outside atmosphere, which easily causes the accumulation of dust or impurities, thereby polluting the detergent solution and affecting the washing effect.

[0005] The present application provides a detergent box assembly, which is applied to a clothes processing device, wherein the clothes processing device includes an outer drum and an inner drum, and the detergent box assembly includes:

[0006] Water inlet valve;

[0007] A box body, wherein a first chamber, a delivery pipeline and an air inlet channel are arranged in the box body, the delivery pipeline includes a venturi tube, the venturi tube includes a liquid inlet, a liquid outlet and a negative pressure port, the liquid inlet is communicated with the water inlet valve and / or the first chamber, the liquid outlet is communicated with the inner tube, one end of the air inlet channel is communicated with the negative pressure port, and the other end is communicated with a side of the outer tube away from the ground;

[0008] Wherein, the first chamber is used for storing detergent.

[0009] Optionally, the air inlet passage is connected to the outer cylinder via an air inlet;

[0010] A liquid discharge channel and a second chamber are also provided in the box body. The liquid discharge channel is connected to the second chamber and the air inlet channel, and the connecting openings of the liquid discharge channel and the air inlet channel are staggered with the air inlet in the horizontal direction.

[0011] Optionally, the negative pressure port is opened on a side of the Venturi tube facing the ground.

[0012] Optionally, the box body includes an upper cover, a lower cover and an air inlet pipe, the air inlet channel includes a first flow path and a second flow path, the upper cover and the lower cover are sandwiched to form the delivery pipeline and the first flow path, the first flow path communicates with the negative pressure port and the liquid discharge channel, the air inlet pipe is provided with the second flow path, and the second flow path communicates with the air inlet port and the first flow path;

[0013] The first flow path and the second flow path are connected through a first opening. In the gravity direction, the first opening is higher than the communication port.

[0014] Optionally, the Venturi tube is integrally formed with the upper cover.

[0015] Optionally, the second chamber is in communication with the outer cylinder.

[0016] Optionally, the delivery pipeline further comprises a first channel, the first channel is connected to the liquid inlet, the first channel is further provided with a first inlet and a second inlet, the first inlet is located upstream of the second inlet along the liquid flow direction, and the first inlet is connected to the water inlet valve;

[0017] The detergent box assembly further includes a dosing pump connected to the second inlet and the first chamber.

[0018] Optionally, a check valve is further included, and the check valve is installed at the second inlet.

[0019] Optionally, the first chambers include a plurality of first chambers, the second inlets are correspondingly provided with a plurality of second inlets, and each of the first chambers is connected to one of the second inlets.

[0020] An embodiment of the present application also provides a clothes processing device, including an outer drum, an inner drum and the detergent box assembly as described above.

[0021] In the detergent box assembly provided in the embodiment of the present application, the negative pressure port of the venturi tube of the delivery pipeline is connected with the outer cylinder, that is, when the liquid in the delivery pipeline flows from the liquid inlet to the liquid outlet of the venturi tube, negative pressure is formed at the negative pressure port, and the gas in the outer cylinder is sucked into the venturi tube from the negative pressure port, thereby increasing the bubble content in the liquid. In addition, since the liquid in the outer cylinder usually does not fill the outer cylinder, the negative pressure port is connected with the side of the outer cylinder away from the ground, which not only ensures the air suction demand of the negative pressure port, but also prevents external dust from entering the negative pressure port, thereby ensuring the cleanliness of the negative pressure port. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0023] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0024] Figure 1 This is an installation structure diagram of the detergent box assembly provided in an embodiment of the present application.

[0025] Figure 2 A schematic diagram of the connection between the detergent box assembly and the outer drum provided in an embodiment of the present application.

[0026] Figure 3 An exploded view of the upper cover and the lower cover of the detergent box assembly provided in an embodiment of the present application.

[0027] Figure 4 A schematic structural diagram of the lower cover of the detergent box assembly provided in an embodiment of the present application.

[0028] Figure 5 A schematic structural diagram of the upper cover of the detergent box assembly provided in an embodiment of the present application.

[0029] Figure 6 A cross-sectional view of a detergent box assembly provided in an embodiment of the present application.

[0030] Figure 7 An exploded view of the flow guide assembly of the detergent box assembly provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1. Outer cylinder;

[0033] 2. Water inlet valve;

[0034] 3. Box body; 31. Upper cover; 32. Lower cover; 33. Air inlet pipe; 34. First chamber; 35. Delivery pipeline; 351. Venturi tube; 3511. Liquid inlet; 3512. Liquid outlet; 3513. Negative pressure port; 352. First channel; 3521. First inlet; 353. Second channel; 36. Air inlet channel; 361. First opening; 362. Communication port; 37. Second chamber;

[0035] 4. Place the pump;

[0036] 5. Check valve;

[0037] 6. Diversion components. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0039] The embodiments of the present application provide a detergent box assembly and a clothing processing device to solve the problem that the negative pressure pipe of the Venturi tube in the detergent delivery pipeline of the existing washing machine is directly connected to the outside atmosphere, which easily causes the accumulation of dust or impurities, thereby polluting the detergent solution and affecting the washing effect. The following will be explained in conjunction with the accompanying drawings.

[0040] The detergent box assembly provided in the embodiment of the present application is applied to a clothes processing device, see Figure 1 and Figure 2 , Figure 1 This is a diagram of the installation structure of the detergent box assembly provided in the embodiment of the present application. Figure 2 This is a schematic diagram of the connection between the detergent box assembly and the outer drum provided in an embodiment of the present application. The laundry processing device includes an outer drum 1 and an inner drum. The detergent box assembly includes a water inlet valve 2 and a box body 3. Figure 3 , Figure 3 An exploded view of the upper cover and the lower cover of the detergent box assembly provided in an embodiment of the present application, wherein a first chamber 34, a delivery pipeline 35 and an air inlet channel 36 are provided inside the box body 3, the delivery pipeline 35 includes a venturi tube 351, the venturi tube 351 includes a liquid inlet 3511, a liquid outlet 3512 and a negative pressure port 3513, the liquid inlet 3511 is connected to the water inlet valve 2 and / or the first chamber 34, the liquid outlet 3512 is connected to the inner drum, one end of the air inlet channel 36 is connected to the negative pressure port 3513, and the other end is connected to the side of the outer drum 1 away from the ground; wherein, the first chamber 34 is used to store detergent.

[0041] In the detergent box assembly provided in the embodiment of the present application, the negative pressure port 3513 of the venturi tube 351 of the delivery pipe 35 is connected with the outer cylinder 1, that is, when the liquid in the delivery pipe 35 flows from the liquid inlet 3511 to the liquid outlet 3512 of the venturi tube 351, negative pressure is formed at the negative pressure port 3513, and the gas in the outer cylinder 1 is sucked into the venturi tube 351 from the negative pressure port 3513, thereby increasing the bubble content in the liquid. In addition, since the liquid in the outer cylinder 1 usually does not fill the outer cylinder 1, the negative pressure port 3513 is connected with the side of the outer cylinder 1 away from the ground, which not only ensures the air suction demand of the negative pressure port 3513, but also prevents external dust from entering the negative pressure port 3513, thereby ensuring the cleanliness of the negative pressure port 3513.

[0042] It is understandable that the venturi tube 351 can refer to the existing structure, that is, it includes a contraction section, a waiting section and an expansion section that are connected in sequence. The inner diameter of the contraction section gradually decreases toward the end close to the throat. The inner diameter of the throat is the smallest inner diameter in the venturi tube 351, and the inner diameter of the expansion section gradually increases toward the end away from the throat. When the fluid enters the contraction section, the inner diameter of the pipe decreases and the flow rate increases. According to the Bernoulli equation, the pressure decreases. At the throat, the flow rate reaches the maximum value and the pressure drops to the minimum. When the fluid passes through the expansion section, the inner diameter of the pipe gradually increases, the flow rate decreases, and the pressure returns to a pressure close to the inlet. Among them, the liquid inlet 3511 is the opening of the contraction section away from the throat, the liquid outlet 3512 is the opening of the expansion section away from the throat, and the negative pressure port 3513 is opened in the throat.

[0043] The type of detergent in the first chamber 34 is not further limited here, and it can be, for example, laundry detergent, softener, disinfectant, bleach, etc.

[0044] Optionally, the air inlet channel 36 is connected to the outer tube 1 through the air inlet port; a drainage channel and a second chamber 37 are also provided in the box body 3, the drainage channel connects the second chamber 37 and the air inlet channel 36, and the connecting port 362 between the drainage channel and the air inlet channel 36 is staggered with the air inlet port in the horizontal direction.

[0045] By setting up the drainage channel, when the venturi tube 351 fails due to blockage or other reasons, the liquid in the venturi tube 351 can flow from the negative pressure port 3513 to the air inlet channel 36, and flow into the drainage channel from the connecting port 362 between the drainage channel and the air inlet channel 36, and flow into the second chamber 37 of the box body 3 through the drainage channel, so that when the venturi tube 351 fails, the liquid overflowing from the negative pressure port 3513 can be recovered, and the liquid is prevented from flowing around in the box body 3 and causing pollution. At the same time, the connecting port 362 between the drainage channel and the air inlet channel 36 is located between the air inlet and the negative pressure port 3513, so when liquid flows into the air inlet channel 36, it will first flow into the drainage channel from the connecting port 362, thereby preventing the liquid from entering the outer cylinder 1 from the air inlet, causing pollution to the outer cylinder 1, and avoiding affecting the washing effect in the inner cylinder.

[0046] Optionally, the negative pressure port 3513 is provided on the side of the venturi tube 351 facing the ground. Therefore, when the venturi tube 351 fails, the liquid in the venturi tube 351 will flow into the air inlet channel 36 from the negative pressure port 3513 due to gravity, so as to prevent the liquid in the venturi tube 351 from flowing back from the liquid inlet port 3511 and contaminating the liquid storage chamber or the water inlet valve 2.

[0047] Optionally, the box body 3 includes an upper cover 31, a lower cover 32 and an air inlet pipe 33, and the air inlet channel 36 includes a first flow path and a second flow path. The upper cover 31 and the lower cover 32 are sandwiched to form a delivery pipeline 35 and a first flow path. The first flow path is connected to the negative pressure port 3513 and the liquid discharge channel. A second flow path is provided in the air inlet pipe 33, and the second flow path is connected to the air inlet and the first flow path. The first flow path and the second flow path are connected through the first opening 361. In the direction of gravity, the first opening 361 is higher than the connecting port 362. Specifically, a first limiting rib is provided on the upper cover 31, and a second limiting rib is correspondingly provided on the lower cover 32. After the upper cover 31 and the lower cover 32 are covered, the delivery pipeline 35 and the first flow path are formed by the first limiting rib and the second limiting rib.

[0048] Since the first opening 361 is higher than the connecting opening 362 in the direction of gravity, the liquid in the first flow path is further restricted from flowing toward the first opening 361 , thereby preventing the clothes in the washing tub from being contaminated due to failure of the venturi tube 351 .

[0049] The shape of the first flow path is not further limited here. In some examples, the bottom surface of the first flow path corresponding to the connecting port 362 and the negative pressure port 3513 extends horizontally, and the height of the bottom surface of the first flow path corresponding to the connecting port 362 and the first opening 361 gradually increases toward the direction close to the first opening 361. At this time, the liquid level between the connecting port 362 and the first opening 361 is higher than the liquid level between the connecting port 362 and the negative pressure port 3513; in other examples, the height of the bottom surface of the first flow path corresponding to the connecting port 362 and the negative pressure port 3513 gradually decreases toward the direction close to the connecting port 362, and the height of the bottom surface of the first flow path corresponding to the connecting port 362 and the first opening 361 gradually increases toward the direction close to the first opening 361. At this time, the liquid level at the connecting port 362 is the lowest.

[0050] In some examples, the air intake pipe 33 may be a bellows, which can adapt to the relative displacement between pipes or equipment, reduce vibration and noise, and the bellows can be bent into various shapes as needed to facilitate installation. The type of the bellows is not further limited here, and may be, for example, an annular bellows, a V-shaped bellows, a spiral bellows, and a plate bellows.

[0051] Optionally, see Figure 5 , Figure 5 The schematic diagram of the structure of the upper cover of the detergent box assembly provided in the embodiment of the present application shows that the venturi tube 351 is integrally formed on the upper cover 31, and the negative pressure port 3513 is opened toward the lower cover 32. By integrally forming the venturi tube 351 on the upper cover 31, the sealing of the venturi tube 351 is ensured, and the poor sealing of the venturi tube 351 due to the split design is prevented from affecting the negative pressure suction effect.

[0052] Optionally, see Figure 6, Figure 6 The cross-sectional view of the detergent box assembly provided in the embodiment of the present application, the second chamber 37 is connected to the outer drum 1. That is, the liquid discharged when the venturi tube 351 received in the second chamber 37 fails can be discharged to the outer drum 1 according to the washing needs, ensuring that even if the venturi tube 351 fails, the detergent solution can still be smoothly added to the outer drum 1 to ensure the washing needs, avoiding the failure of the venturi tube 351 to add the detergent solution, thereby affecting the washing effect. In some examples, the box body 3 also includes a shell and a drawer that can be pulled out and arranged in the shell. The upper cover 31 and the lower cover 32 are covered and arranged on the top of the shell. The first chamber 34 is arranged in the drawer, and the second chamber 37 can be a space sandwiched between the shell and the drawer.

[0053] Optionally, the delivery pipeline 35 further includes a first channel 352, the first channel 352 is connected to the liquid inlet 3511, and the first channel 352 is further provided with a first inlet 3521 and a second inlet, the first inlet 3521 is located upstream of the second inlet along the liquid flow direction, and the first inlet 3521 is connected to the water inlet valve 2; the detergent box assembly further includes a delivery pump 4, the delivery pump 4 is connected to the second inlet and the first chamber 34. In some examples, the delivery pump 4 can be a peristaltic pump.

[0054] By setting the detergent delivery inlet, i.e., the second inlet, downstream of the delivery inlet of the water inlet valve 2, i.e., the first inlet 3521, when the detergent solution needs to be delivered, water and detergent are delivered into the first channel 352 at the same time, the detergent is flushed and mixed with water to form a detergent solution, the detergent is dissolved and foamed, and the fluidity of the detergent is enhanced to prevent the detergent from being too viscous and difficult to flow in the delivery pipeline 35.

[0055] Furthermore, by extracting the detergent in the first chamber 34 and dispensing it into the first channel 352 through the dispensing pump 4, it is convenient to control the amount of detergent dispensed, and a preset volume of detergent can be accurately dispensed according to washing needs to prevent excessive or inadequate detergent from affecting the washing effect. Furthermore, the dispensing pump 4 extracts a fixed amount of detergent and dispenses it into the first channel 352 before flushing and foaming it, thereby preventing the water flow from directly flushing the first chamber 34, thereby preventing the detergent in the first chamber 34 from being contaminated by impurities or bacteria in the water, thereby ensuring the cleanliness of washing.

[0056] Optionally, see Figure 4 , Figure 4 This is a schematic diagram of the structure of the lower cover of the detergent box assembly provided in the embodiment of the present application. The detergent box assembly provided in the embodiment of the present application further includes a check valve 5, which is installed at the second inlet. By installing the check valve 5 at the second inlet, the detergent solution is prevented from flowing back from the second inlet to the dosing pump 4 or the first chamber 34, thereby ensuring the cleanliness of the dosing pump 4 and the first chamber 34.

[0057] It can be understood that the check valve 5, also known as a one-way valve or a non-return valve, is a device that prevents the reverse flow of fluid in a pipeline. It is mainly used to prevent the liquid flow from flowing back when the flow stops or the pressure drops, thereby protecting the system from damage or ensuring the normal operation of the system. The basic working principle of the check valve 5 is to use the fluid pressure difference to control the opening and closing of the valve. When the fluid flows forward, the pressure pushes the valve to open; when the fluid stops or flows in the reverse direction, the pressure difference decreases or reverses, and the valve automatically closes to prevent the fluid from flowing back. There are many types of check valves 5, for example, lift check valves 5, rotary check valves 5, spring-loaded check valves 5 and float check valves 5, and no further limitation is made on the specific models here.

[0058] Optionally, the first chamber 34 includes a plurality of first chambers 34, and the second inlet is correspondingly provided with a plurality of first chambers 34, and each first chamber 34 is connected to a second inlet. Specifically, the dosing pump 4 includes a plurality of liquid pumping ends and liquid outlet ends, each liquid pumping end is connected to a first chamber 34, and each liquid outlet end is connected to a second inlet, that is, a first chamber 34, a liquid pumping end and a second inlet are connected to form a liquid inlet passage, and different types of detergents are contained in each first chamber 34, so that different types of detergents can be separately dispensed, and multiple detergents are prevented from sharing a liquid inlet passage, thereby causing cross contamination between different detergents and reducing the washing effect.

[0059] Optionally, see Figure 7 , Figure 7 The exploded view of the flow guide component of the detergent box assembly provided in the embodiment of the present application, the detergent box assembly provided in the embodiment of the present application also includes a flow guide component 6, the flow guide component 6 includes a plurality of flow guide paths spaced from each other, a liquid suction end of the delivery pump 4 is connected to a first chamber 34 through a flow guide path, and a liquid outlet end of the delivery pump 4 is connected to a second inlet through another flow guide path, that is, the provision of the flow guide component 6 makes up for the defect of the simple connection structure between the liquid suction end and the liquid outlet end of the delivery pump 4, when the distance or orientation between the first chamber 34 and the second inlet and the liquid suction end and the liquid outlet end of the delivery pump 4 does not match, the flow guide component 6 can be used to achieve the connection between the liquid suction end and the liquid outlet end of the delivery pump 4 and the first chamber 34 and the second inlet, respectively. The shape of the flow guide path is not further limited here.

[0060] Optionally, the delivery pipeline 35 further includes a second channel 353 and a liquid outlet pipe, one end of the second channel 353 is connected to the liquid outlet 3512 of the venturi tube 351, and the other end is connected to the liquid outlet pipe, and the end of the liquid outlet pipe away from the second channel 353 is connected to the inner drum. Specifically, the end of the liquid outlet pipe away from the second channel 353 can be embedded in the door seal of the clothing processing device and arranged toward the inner drum.

[0061] The present application also provides a laundry processing device, including an outer drum 1, an inner drum and the above-mentioned detergent box assembly. The type of the laundry processing device is not further limited here, and in some examples, it can be a drum washing machine.

[0062] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0063] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0064] The detergent box assembly and the clothing processing device provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technicians in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A detergent box assembly, applied to a clothes processing device, the clothes processing device comprising an outer drum and an inner drum, characterized in that: The detergent box assembly comprises: Water inlet valve; A box body, wherein a first chamber, a delivery pipeline and an air inlet channel are arranged in the box body, the delivery pipeline includes a venturi tube, the venturi tube includes a liquid inlet, a liquid outlet and a negative pressure port, the liquid inlet is communicated with the water inlet valve and / or the first chamber, the liquid outlet is communicated with the inner tube, one end of the air inlet channel is communicated with the negative pressure port, and the other end is communicated with a side of the outer tube away from the ground; Wherein, the first chamber is used for storing detergent.

2. The detergent box assembly according to claim 1, characterized in that: The air inlet passage is connected to the outer cylinder through an air inlet; A liquid discharge channel and a second chamber are also provided in the box body. The liquid discharge channel is connected to the second chamber and the air inlet channel, and the connecting openings of the liquid discharge channel and the air inlet channel are staggered with the air inlet in the horizontal direction.

3. The detergent box assembly according to claim 2, characterized in that: The negative pressure port is opened on the side of the venturi tube facing the ground.

4. The detergent box assembly according to claim 2, characterized in that: The box body comprises an upper cover, a lower cover and an air inlet pipe, the air inlet passage comprises a first flow path and a second flow path, the upper cover and the lower cover are sandwiched to form the delivery pipeline and the first flow path, the first flow path communicates with the negative pressure port and the liquid discharge channel, the air inlet pipe is provided with the second flow path, the second flow path communicates with the air inlet and the first flow path; The first flow path and the second flow path are connected through a first opening. In the gravity direction, the first opening is higher than the communication port.

5. The detergent box assembly according to claim 4, characterized in that: The venturi tube is integrally formed on the upper cover.

6. The detergent box assembly according to claim 2, characterized in that: The second chamber is communicated with the outer cylinder.

7. The detergent box assembly according to claim 1, characterized in that: The delivery pipeline further includes a first channel, the first channel is connected to the liquid inlet, the first channel is further provided with a first inlet and a second inlet, the first inlet is located upstream of the second inlet along the liquid flow direction, and the first inlet is connected to the water inlet valve; The detergent box assembly further includes a dosing pump connected to the second inlet and the first chamber.

8. The detergent box assembly according to claim 7, characterized in that: A check valve is also included, and the check valve is installed at the second inlet.

9. The detergent box assembly according to claim 7, characterized in that: The first chambers include a plurality of chambers, and the second inlets are correspondingly provided with a plurality of chambers, and each of the first chambers is connected to one of the second inlets.

10. A clothes processing device, characterized in that: The detergent box comprises an outer drum, an inner drum and a detergent box assembly as claimed in any one of claims 1 to 9.

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