Premixing water inlet device and washing machine

Abstract

The invention belongs to the technical field of washing machines, and discloses a premixing water inlet device and a washing machine. The premixing water inlet device comprises a water inlet pipe, a preheating mechanism and a premixing mechanism. The water inlet pipe is used for feeding washing water. The preheating mechanism is connected to the water inlet pipe and can heat washing water. The premixing mechanism is connected to the water inlet pipe and located on the downstream portion of the preheating mechanism, the premixing mechanism comprises a premixing bin, a detergent is contained in the premixing bin, and the detergent is mixed with washing water in the premixing bin. The premixing water inlet device can improve the premixing effect of the detergent and the washing water, the detergent can quickly play a role, and the washing efficiency and the washing effect are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and particularly to a premixing water inlet device and a washing machine. Background Art

[0002] The laundry process of a washing machine mainly includes several stages such as washing, rinsing, and drying. In the washing stage, detergent needs to be added to the water to improve the washing effect.

[0003] Currently, generally, the method of directly adding detergent into the inner tub of the washing machine is adopted. The above-mentioned detergent adding method will cause the detergent to accumulate concentratedly at the same position of the laundry, with poor uniformity. The detergent needs to be gradually dissolved during the washing process, thus prolonging the time required for the detergent to dissolve and take effect, and affecting the washing efficiency and washing effect of the washing machine.

[0004] Therefore, there is an urgent need for a premixing water inlet device and a washing machine to solve the above problems. Summary of the Invention

[0005] According to one aspect of the present invention, an object is to provide a premixing water inlet device which can improve the premixing effect of the detergent and the washing water, facilitate the detergent to quickly take effect, and improve the washing efficiency and washing effect.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The premixing water inlet device includes:

[0008] A water inlet pipe for the inlet of washing water;

[0009] A preheating mechanism connected to the water inlet pipe and capable of heating the washing water;

[0010] A premixing mechanism connected to the water inlet pipe and located downstream of the preheating mechanism. The premixing mechanism includes a premixing chamber for accommodating the detergent, and the detergent is mixed with the washing water in the premixing chamber.

[0011] As a preferred solution of the premixing water inlet device provided by the present invention, a stirring assembly is arranged in the premixing chamber, and the stirring assembly can stir the detergent and the washing water in the premixing chamber. Through the above setting, the detergent and the washing water in the premixing chamber are stirred, accelerating the dissolution of the detergent and facilitating the uniform distribution of the detergent in the washing water.

[0012] As a preferred embodiment of the premixed water inlet device provided by the present invention, the premixing mechanism further includes a temperature increasing component, which is arranged outside the premixing chamber and configured to increase the temperature in the premixing chamber. Through the above arrangement, in a cold environment, the temperature increasing component can reheat the premixing chamber so that the temperature in the premixing chamber reaches the preset temperature at which the detergent can achieve the best washing effect.

[0013] As a preferred embodiment of the premixed water inlet device provided by the present invention, the premixing mechanism further includes a liquid level sensor, which is arranged in the premixing chamber and can detect the liquid level of the detergent in the premixing chamber. Through the above arrangement, it is convenient for users to add detergent in a timely manner.

[0014] As a preferred embodiment of the premixed water inlet device provided by the present invention, the premixed water inlet device further includes a detergent storage tank and a control valve. The detergent storage tank is selectively connected to the premixing chamber through the control valve, and the control valve is communicatively connected to the liquid level sensor. The control valve can control the connection or disconnection between the detergent storage tank and the premixing chamber according to the liquid level of the detergent detected by the liquid level sensor. Through the above arrangement, automatic, timely and accurate addition of detergent can be achieved, and the workload of users can be reduced.

[0015] As a preferred embodiment of the premixed water inlet device provided by the present invention, the premixing chamber is provided with a detergent inlet, which is selectively connected to the premixing chamber, and the detergent can be injected into the premixing chamber from the detergent inlet. Through the above arrangement, it is convenient for users to add detergent.

[0016] As a preferred embodiment of the premixed water inlet device provided by the present invention, the premixing mechanism further includes a water injection pipe, which is selectively connected to the premixing chamber and configured to output the washing water mixed with the detergent. Through the above arrangement, it is convenient to control the water inlet process of the outer tub.

[0017] As a preferred embodiment of the premixed water inlet device provided by the present invention, the premixed water inlet device further includes a pressurizing mechanism, which is arranged in the water inlet pipe and configured to increase the inlet pressure of the washing water.

[0018] According to another aspect of the present invention, an object is to provide a washing machine, which includes a connected inner tub and an outer tub. The inner tub is arranged in the outer tub and configured to accommodate the laundry to be washed. The washing machine further includes the premixed water inlet device according to any one of the above solutions. The premixed water inlet device is used to inject washing water into the outer tub, and the outer tub can inject the washing water into the inner tub.

[0019] As a preferred embodiment of the washing machine provided by the present invention, the washing machine further includes a chamber heating device disposed outside the outer tub and configured to heat the washing water in the outer tub. Through the above arrangement, the heating of the washing water in the outer tub can be achieved, the temperature of the washing water can be increased, and thus the washing effect can be improved.

[0020] Advantages of the present invention:

[0021] The premixed water inlet device provided by the present invention includes a water inlet pipe, a preheating mechanism, and a premixing mechanism. The water inlet pipe allows the washing water to flow through and achieve water inlet. The preheating mechanism and the premixing mechanism are respectively connected to the water inlet pipe, and the premixing mechanism is located downstream of the preheating mechanism. The preheating mechanism includes a premixing chamber for accommodating detergent, and the detergent is mixed with the preheated washing water in the premixing chamber. The preheating mechanism can heat the washing water, increase the initial temperature of the washing water, and thus improve the mixing effect of the washing water and the detergent, facilitate the rapid action of the detergent, and improve the washing efficiency and washing effect. Description of the Drawings

[0022] Figure 1 is a partial structural schematic diagram of the washing machine provided by Embodiment 1 of the present invention;

[0023] Figure 2 is a schematic diagram of the premixed water inlet device provided by Embodiment 1 of the present invention;

[0024] Figure 3 is a schematic diagram of the premixing mechanism provided by Embodiment 2 of the present invention.

[0025] In the figure:

[0026] 10, inner tub; 20, outer tub; 11, inner tub temperature sensor; 30, chamber heating device; 40, circulation pipe; 41, circulation pump; 50, spray pipe; 51, nozzle;

[0027] 100, water inlet pipe; 110, water inlet temperature sensor; 120, water inlet control valve;

[0028] 200, preheating mechanism;

[0029] 300, premixing mechanism; 310, premixing chamber; 311, detergent inlet; 320, stirring assembly; 330, temperature increasing assembly; 340, liquid level sensor; 350, detergent storage tank; 360, control valve; 370, water injection pipe; 371, water injection valve;

[0030] 400, pressurizing mechanism. Detailed Embodiments

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0032] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] In the present invention, 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 between them. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", and "left" are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] Embodiment 1

[0036] Figure 1 The partial structural schematic diagram of the washing machine provided by Embodiment 1 of the present invention is shown. Refer to Figure 1 This embodiment provides a premixed water inlet device and a washing machine. The washing machine includes an inner tub 10 and an outer tub 20 which are communicatively arranged. The inner tub 10 is disposed in the outer tub 20 and is configured to accommodate the laundry. The washing machine further includes the premixed water inlet device provided in this embodiment. The premixed water inlet device is selectively communicatively connected to the outer tub 20 and is configured to inject washing water into the outer tub 20. The outer tub 20 can inject the washing water into the inner tub 10.

[0037] Preferably, the connection mode between the inner cylinder 10 and the outer cylinder 20 provided in this embodiment is different from that of the washing machine in the prior art. In this embodiment, the outer cylinder 20 is only connected to the inner cylinder 10 through the spray pipe 50. One end of the spray pipe 50 is connected to the outer cylinder 20, and the other end extends into the inner cylinder 10, located at the upper end of the inner cylinder 10, and is provided with a plurality of nozzles 51. The spray pipe 50 can use the nozzles 51 to spray the washing water in the outer cylinder 20 onto the clothes to be washed in the inner cylinder 10 in a spraying manner, so that the clothes to be washed in the inner cylinder 10 can be wetted at a faster speed and it is convenient for the detergent mixed in the washing water to be evenly distributed.

[0038] Preferably, the plurality of nozzles 51 are arranged at equal intervals along the axial direction of the inner cylinder 10 at the upper end of the inner wall of the inner cylinder 10. And the nozzles 51 can spray the washing water simultaneously in the vertical direction and the horizontal direction.

[0039] Specifically, the washing machine further includes a chamber heating device 30. The chamber heating device 30 is arranged outside the outer cylinder 20 and is configured to heat the washing water in the outer cylinder 20. The chamber heating device 30 can be specifically arranged at the bottom of the outer cylinder 20. The chamber heating device 30 includes a waterproof housing and an electric heating tube arranged in the waterproof housing. The waterproof housing can protect the electric heating tube and prevent the electric heating tube from being damaged by water. Through the electric heating tube, the heating of the washing water in the outer cylinder 20 can be realized, the temperature of the washing water can be increased, and thus the washing effect can be improved.

[0040] Preferably, the cross-sectional area of the waterproof housing is basically equal to the cross-sectional area of the outer cylinder 20, and the above-mentioned electric heating tubes are evenly arranged in the waterproof housing. Through the above settings, the uniformity of heating the outer cylinder 20 by the electric heating tube can be improved, and thus the heating efficiency of the washing water in the outer cylinder 20 can be improved, and it is beneficial to the uniformity of heating the washing water.

[0041] Figure 2 The schematic diagram showing the premixed water inlet device provided in the first embodiment of the present invention is referred to Figure 2 , the premixed water inlet device provided in this embodiment includes a water inlet pipe 100, a preheating mechanism 200, and a premixing mechanism 300. The water inlet pipe 100 is selectively connected to the outer cylinder 20 and can inject washing water into the outer cylinder 20. The preheating mechanism 200 is connected to the water inlet pipe 100 and can preheat the washing water before it enters the outer cylinder 20 to increase the initial temperature of the washing water. The premixing mechanism 300 is connected to the water inlet pipe 100 and is located downstream of the preheating mechanism 200. The premixing mechanism 300 can mix the washing water and the detergent so that the detergent and the washing water are fully mixed before entering the outer cylinder 20, which is convenient for the detergent to be evenly dispersed in the washing water and enables it to exert its effect as soon as possible.

[0042] Optionally, the preheating mechanism 200 can be an electric heating tube or the like. The type is selected to be able to quickly heat the washing water in the water inlet pipe 100. The specific type and structure are not limited in this embodiment.

[0043] Preferably, the washing machine further includes a circulation pipe 40. The circulation pipe 40 is connected between the inner tub 10 and the water inlet pipe 100, and can circulate the washing water in the inner tub 10 to the upstream of the preheating mechanism 200. That is to say, the circulation pipe 40 can circulate the washing water in the inner tub 10 whose temperature has dropped below the preset temperature to the water inlet pipe 100, and heat it to the preset temperature again under the action of the preheating mechanism 200, and then inject it into the outer tub 20 again, and then be injected into the inner tub 10 by the outer tub 20. Through the above settings, the mixing effect of the washing water and the detergent can be improved, which is convenient for the detergent to play a role quickly, and the washing efficiency and washing effect can be improved. The above preset temperature can be selected according to actual experience to be able to achieve the best washing effect of the detergent, and the specific value is not limited in this embodiment.

[0044] Specifically, the inner tub 10 is provided with an inner tub temperature sensor 11, and the inner tub temperature sensor 11 can detect the average temperature of the washing water in the inner tub 10. A circulation pump 41 is arranged in the circulation pipe 40, and the circulation pump 41 can be controlled according to the temperature signal sent by the inner tub temperature sensor 11. When the inner tub temperature sensor 11 detects that the average water temperature of the washing water in the inner tub 10 has dropped below the preset temperature, the circulation pump 41 starts to pump the washing water in the inner tub 10 to the preheating mechanism 200.

[0045] More specifically, a water inlet temperature sensor 110 is arranged in the water inlet pipe 100. The water inlet temperature sensor 110 is arranged at a position of the water inlet pipe 100 close to the premixing mechanism 300 to detect the temperature of the washing water about to enter the premixing mechanism 300. The water inlet temperature sensor 110 is communicatively connected to the preheating mechanism 200. When the water inlet temperature sensor 110 detects that the temperature of the washing water about to enter the premixing mechanism 300 is too low, the preheating mechanism 200 starts to heat the washing water in the water inlet pipe 100.

[0046] More specifically, continue to refer to Figure 1 , a water inlet control valve 120 is also arranged in the water inlet pipe 100. The water inlet control valve 120 is arranged at the water inlet end of the water inlet pipe 100. When the water inlet control valve 120 is opened, water inlet can be realized. The water inlet control valve 120 can specifically be an electromagnetic valve.

[0047] Even more specifically, the premixing water inlet device further includes a pressurizing mechanism 400. The pressurizing mechanism 400 is arranged in the water inlet pipe 100 and is configured to increase the water inlet pressure of the washing water.

[0048] Continue to refer to Figure 2 The premixing mechanism 300 includes a premixing chamber 310. The premixing chamber 310 is disposed in the water inlet pipe 100 and is configured to contain detergent, and the detergent can be mixed with the washing water preheated to a preset temperature in the premixing chamber 310.

[0049] Specifically, the premixing mechanism 300 further includes a water injection pipe 370. The water injection pipe 370 is connected to the premixing chamber 310, and the water injection pipe 370 is configured to inject washing water mixed with detergent into the inner drum 10 of the washing machine. A water injection valve 371 is arranged in the water injection pipe 370, and the water injection valve 371 can select a solenoid valve. Through the water injection valve 371, the water injection pipe 370 and the premixing chamber 310 can be selectively connected. When the detergent in the premixing chamber 310 is completely dissolved in the washing water, the water injection valve 371 is opened to perform the water inlet process of the outer drum 20.

[0050] Continue to refer to Figure 2 The premixing bin 310 is provided with a detergent inlet 311. The detergent inlet 311 is movably provided with a cover, and the detergent inlet 311 is selectively connected to the premixing bin 310 through the cover. The cover can cover the detergent inlet 311 to prevent impurities from entering the premixing bin 310. By opening the cover, detergent can be injected into the premixing bin 310 from the detergent inlet 311.

[0051] Specifically, a stirring assembly 320 is provided in the premixing bin 310, and the stirring assembly 320 can stir the detergent and washing water in the premixing bin 310. The stirring assembly 320 specifically includes a driving motor provided outside the premixing bin 310 and a stirring paddle provided inside the premixing bin 310, and the stirring paddle is connected to the output end of the driving motor located outside the premixing bin 310 through a rotating shaft arranged along the axis direction of the premixing bin 310. The driving motor can drive the stirring paddle to rotate, thereby stirring the detergent and washing water in the premixing bin 310, accelerating the dissolution of the detergent, and facilitating the uniform distribution of the detergent in the washing water.

[0052] Preferably, the stirring paddle includes a connecting rod and stirring blades. The stirring blades are in two groups, and the two groups of stirring blades are arranged at intervals along the length direction of the connecting rod, one of which can stir the lower position of the detergent in the premixing bin 310, and the other can stir the upper position of the detergent in the premixing bin 310, so as to accelerate the dissolution speed and uniformity of the detergent in the washing water.

[0053] More specifically, the premixing mechanism 300 further includes a temperature increasing component 330. The temperature increasing component 330 is disposed outside the premixing chamber 310 and is configured to increase the temperature in the premixing chamber 310. Specifically, the temperature increasing component 330 is disposed at the bottom of the premixing chamber 310. In a cold environment, after the washing water is preheated to a preset temperature by the preheating mechanism 200, if the temperature decreases when flowing into the premixing chamber 310, the temperature increasing component 330 can re-increase the temperature of the premixing chamber 310 so that the temperature in the premixing chamber 310 reaches the preset temperature at which the detergent can achieve the best washing effect. In this embodiment, the temperature increasing component 330 can be an electric heating tube or the like.

[0054] More specifically, the premixing mechanism 300 further includes a liquid level sensor 340. The liquid level sensor 340 is disposed in the premixing chamber 310, and the liquid level sensor 340 can detect the liquid level of the detergent in the premixing chamber 310. The premixing mechanism 300 further includes a reminder component, and the reminder component is communicatively connected to the liquid level sensor 340. When the liquid level sensor 340 detects that the detergent in the premixing chamber 310 is insufficient, the reminder component can remind the user, facilitating the timely addition of the detergent. In this embodiment, the reminder component can remind the user by ringing a bell or flashing a light.

[0055] Embodiment 2

[0056] This embodiment provides a premixing water inlet device. Figure 3 The schematic diagram of the premixing mechanism provided in Embodiment 2 of the present invention is shown. Refer to Figure 3 , the difference between this embodiment and Embodiment 1 lies only in the premixing mechanism 300. The premixing mechanism 300 provided in this embodiment further includes a detergent storage tank 350 and a control valve 360.

[0057] Specifically, the detergent storage tank 350 is selectively communicated with the premixing chamber 310 through the control valve 360. The control valve 360 is communicatively connected to the liquid level sensor 340, and the control valve 360 can control the connection or disconnection between the detergent storage tank 350 and the premixing chamber 310 according to the liquid level of the detergent detected by the liquid level sensor 340. That is to say, when the liquid level sensor 340 detects that the detergent liquid level is too low, a detergent shortage signal can be sent to the control valve 360, and the control valve 360 acts and opens according to the detergent shortage signal to conduct the connection channel between the detergent storage tank 350 and the premixing chamber 310. A liquid pump is provided in the connection channel, and the detergent in the detergent storage tank 350 can be pumped into the premixing chamber 310 through the liquid pump. Through the above settings, the automatic, timely and accurate addition of the detergent can be realized, the workload of the user can be reduced, and the use experience can be improved.

[0058] 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 within the protection scope of the claims of the present invention.

Claims

1. Premixed water inlet device, characterized in that, Comprising: A water inlet pipe (100) for inlet of washing water; A preheating mechanism (200) connected to the water inlet pipe (100) and capable of heating the washing water; A premixing mechanism (300) connected to the water inlet pipe (100) and located downstream of the preheating mechanism (200). The premixing mechanism (300) includes a premixing chamber (310) for accommodating detergent, and the detergent is mixed with the washing water in the premixing chamber (310).

2. The premixed water inlet device according to claim 1, wherein, A stirring assembly (320) is provided in the premixing chamber (310), and the stirring assembly (320) is capable of stirring the detergent and the washing water in the premixing chamber (310).

3. The premixed water inlet device according to claim 1, characterized in that The premixing mechanism (300) further includes a temperature increasing assembly (330) provided outside the premixing chamber (310) and configured to increase the temperature in the premixing chamber (310).

4. The premixed water inlet device according to claim 1, characterized in that, The premixing mechanism (300) further includes a liquid level sensor (340) provided in the premixing chamber (310), and the liquid level sensor (340) is capable of detecting the liquid level of the detergent in the premixing chamber (310).

5. The premixed water inlet device according to claim 4, characterized in that, The premixing water inlet device further includes a detergent storage tank (350) and a control valve (360). The detergent storage tank (350) is selectively communicated with the premixing chamber (310) through the control valve (360). The control valve (360) is communicatively connected to the liquid level sensor (340), and the control valve (360) can control the communication or disconnection between the detergent storage tank (350) and the premixing chamber (310) according to the liquid level of the detergent detected by the liquid level sensor (340).

6. The premixed water inlet device according to claim 1, characterized in that, The premixing chamber (310) is provided with a detergent feeding port (311), and the detergent can be injected into the premixing chamber (310) from the detergent feeding port (311).

7. The premixed water inlet device according to claim 1, characterized in that, The premixing mechanism (300) further includes a water injection pipe (370) selectively communicated with the premixing chamber (310), and the water injection pipe (370) is configured to output the washing water mixed with the detergent.

8. The premixed water inlet device according to claim 1, characterized in that The premixing water inlet device further includes a pressurizing mechanism (400) provided in the water inlet pipe (100) and configured to increase the inlet pressure of the washing water.

9. A washing machine, characterized in that, Comprising a connected inner cylinder (10) and outer cylinder (20). The inner cylinder (10) is disposed in the outer cylinder (20) and configured to accommodate the laundry to be washed. The washing machine further includes the premixing water inlet device according to any one of claims 1-8, and the premixing water inlet device is used to inject the washing water into the outer cylinder (20), and the outer cylinder (20) can inject the washing water into the inner cylinder (10).

10. The washing machine according to claim 9, wherein The washing machine further includes a chamber heating device (30) provided in the outer cylinder (20) and configured to heat the washing water in the outer cylinder (20).

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