Washing apparatus

Abstract

The present application belongs to the field of washing, and particularly relates to a washing device. The present application aims to solve the problem that clothes are usually sunk at the bottom of a washing barrel and are easy to be clamped when the clothes are more or heavier. For this purpose, the washing device of the present application comprises a washing barrel, the outside of the washing barrel is provided with a driving part, the inside of the washing barrel is provided with a driving extrusion part and a driven extrusion part, the driving extrusion part is drivingly connected with the output end of the driving part, so that the driving extrusion part can approach or move away from the driven extrusion part with the rotation of the output end of the driving part; one of a first protrusion and a first groove is arranged on the outer surface of the driving extrusion part adjacent to the washing barrel, and the other of the first protrusion and the first groove is correspondingly arranged on the inner surface of the washing barrel, and the first protrusion is matched with the first groove. By arranging the first protrusion and the first groove, the clothes can be effectively prevented from being embedded in the gap between the bottom of the washing barrel and the driving extrusion part, so that the service life of the clothes is avoided from being shortened.

Description

Technical Field

[0001] This invention belongs to the field of washing technology, and specifically relates to a washing device. Background Technology

[0002] In daily life, fully automatic washing machines have brought increasing convenience and have become an indispensable household appliance. There are two common types of washing machines today: top-loading (pulsator) washing machines and front-loading (drum) washing machines. Top-loading washing machines use the rotation of a pulsator to create vortices of water flow in the drum, causing the clothes to tumble and generate friction, thus achieving a washing effect. Front-loading washing machines, on the other hand, use the mechanical action of a motor to rotate the drum, repeatedly lifting and dropping the clothes to higher positions to achieve the same effect.

[0003] However, existing front-loading washing machines are not very effective at washing clothes and are relatively bulky and inconvenient to transport. Top-loading washing machines have a pulsator structure at the bottom of the inner drum. During the washing process, the pulsator drives the clothes to rotate back and forth in both directions. This forward and reverse rotation makes it easy for clothes to get tangled, requiring manual separation after washing and often resulting in severe wear and tear on the clothes.

[0004] Based on the aforementioned problems, the inventors, in their application document with application number 202011506529.2, proposed a novel squeeze-type washing machine to address the pain points of existing pulsator and drum washing machines and achieve superior washing results. However, during actual production, the inventors discovered that this design still has areas for improvement. For example, in the area where the active squeezing section meets the bottom of the washing tub, when there are many or heavy loads of clothes, the clothes usually sink to the bottom of the tub, easily causing them to become embedded in the gap between the bottom of the washing tub and the active squeezing section.

[0005] Accordingly, there is a need in the art for a new washing device to solve the aforementioned problems existing in the prior art. Summary of the Invention

[0006] To address the problem in existing technologies where clothes tend to sink to the bottom of the washing tub when there are many or heavy garments, leading to clothes getting caught, this invention provides a washing device including a washing tub. The washing tub has an external driving unit and an internal active squeezing unit and a squeezed unit. The active squeezing unit is driven to the output end of the driving unit, allowing it to move closer to or away from the squeezed unit as the output end of the driving unit rotates. One of a first protrusion / first groove is provided on the outer surface of the active squeezing unit adjacent to the washing tub, and the other of the first protrusion / first groove is provided on the inner surface of the washing tub, with the first protrusion matching the first groove.

[0007] In the preferred embodiment of the above washing device, the output end of the drive unit is directly driven and connected to the active squeezing unit, or a shaft is provided between the drive unit and the active squeezing unit, one end of the shaft is driven and connected to the output end of the drive unit, and the other end of the shaft enters the washing tub and is driven and connected to the active squeezing unit.

[0008] In the preferred embodiment of the above washing device, a first protrusion is provided on the bottom surface of the outer surface of the active squeezing part, and a first groove is provided on the bottom surface of the inner surface of the washing tub.

[0009] In the preferred embodiment of the washing device described above, the longitudinal section of the first protrusion is rectangular or trapezoidal, and correspondingly the longitudinal section of the first groove is a rectangular groove or a trapezoidal groove, and / or, the first protrusion is a fan-shaped annular protrusion, and the first groove is an annular groove.

[0010] In the preferred embodiment of the above washing device, the squeezed part is fixedly disposed inside the washing tub.

[0011] In the preferred embodiment of the above washing device, the squeezed part is slidably sleeved with the output end of the drive part, so that the squeezed part does not rotate with the rotation of the output end of the drive part.

[0012] In the preferred embodiment of the above washing device, one of the second protrusion / second groove is provided on the outer surface of the squeezed part adjacent to the washing tub, and the other of the second protrusion / second groove is provided on the inner surface of the washing tub, wherein the second protrusion matches the second groove.

[0013] In the preferred embodiment of the above washing device, a second protrusion is provided on the bottom surface of the outer surface of the squeezed part, and a second groove is provided on the bottom surface of the inner surface of the washing tub.

[0014] In the preferred embodiment of the above washing device, the active squeezing part is provided with a first water passage, and / or the squeezed part is provided with a second water passage.

[0015] In the preferred embodiment of the above washing device, the squeezed part includes a first side and a second side, the second water passage includes a forward passage, the water outlet of the forward passage on the first side is higher than the water outlet on the second side; and / or, the second water passage includes a reverse passage, the water outlet of the reverse passage on the first side is lower than the water outlet on the second side.

[0016] As will be understood by those skilled in the art, in the technical solution of the present invention, the washing device includes a washing tub, a driving unit is provided on the outside of the washing tub, and an active squeezing unit and a squeezed unit are provided inside the washing tub. The active squeezing unit is driven to the output end of the driving unit so that the active squeezing unit can move closer to or away from the squeezed unit as the output end of the driving unit rotates. One of the first protrusions / first grooves is provided on the outer surface of the active squeezing unit adjacent to the washing tub, and the other of the first protrusions / first grooves is provided on the inner surface of the washing tub accordingly. The first protrusions match the first grooves.

[0017] The washing device of this invention employs a squeezing washing method, which achieves better washing results during the squeezing washing process and prevents the washing load (such as clothes) from tangling. This invention also features a first protrusion and a first groove, which breaks up the entire elongated bottom seam into multiple small gaps. Even when there are many or heavy clothes at the bottom of the tub, these small gaps make it difficult for clothes to enter, effectively preventing them from embedding in the gap between the bottom of the washing tub and the active squeezing part, thus avoiding shortening the lifespan of the clothes due to wear or pulling. Attached Figure Description

[0018] The washing apparatus of the present invention will now be described with reference to the accompanying drawings. In the drawings:

[0019] Figure 1 This is a front view of the washing apparatus of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the first embodiment of the washing device of the present invention;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of the washing tub with the side wall removed;

[0022] Figure 4 This is a schematic diagram of the structure of the second embodiment of the present invention;

[0023] Figure 5 for Figure 4 A schematic diagram of the structure of the washing tub with the side wall removed;

[0024] Figure 6 This is a schematic diagram of the reverse channel structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the forward channel structure of the present invention;

[0026] Figure 8 This is a schematic diagram of another embodiment of the first protrusion and the first groove of the present invention.

[0027] List of reference numerals:

[0028] 1-Washing tub, 2-Drive unit,

[0029] 3-Active extrusion section, 31-First water passage, 32-Third side surface, 33-Fourth side surface,

[0030] 4-The part being squeezed, 41-The second water passage, 411-The forward passage, 412-The reverse passage, 42-The first side, 43-The second side.

[0031] 5-shaft, 6-first protrusion, 7-first groove, 8-second protrusion, 9-second groove. Detailed Implementation

[0032] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the specification describes the present invention using a fan-shaped plate as an example where both the active extrusion part and the extruded part are fan-shaped plates, the present invention can obviously employ other similar means, such as either the active extrusion part or the extruded part being a cuboid, or both the active extrusion part and the extruded part being cuboids, as long as the active extrusion part and the extruded part can effectively extrude the washing load.

[0033] It should be noted that in the description of this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "equipped," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium, etc. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] To address the problem that when there are many or heavy clothes, they often sink to the bottom of the washing tub, which can easily cause clothes to get caught, this invention provides a washing device. The first embodiment of this invention will be described below.

[0036] like Figure 1-3 As shown in Figures 6-7, the washing device includes a washing tub 1. A drive unit 2 is located outside the washing tub 1. An active squeezing unit 3 and a squeezed part 4 are located inside the washing tub 1. To improve the squeezing effect, both the active squeezing unit 3 and the squeezed part 4 can be fan-shaped plates. The active squeezing unit 3 is driven to the output end of the drive unit 2, allowing the active squeezing unit 3 to move closer to or further away from the squeezed part 4 as the output end of the drive unit 2 rotates. A shaft 5 is also provided between the drive unit 2 and the active squeezing unit 3. One end of the shaft 5 is driven to the output end of the drive unit 2, and the other end of the shaft 5 enters the washing tub 1 and is driven to the active squeezing unit 3. The squeezed part 4 is fixedly located inside the washing tub 1.

[0037] like Figure 3 As shown, a first protrusion 6 is provided on the bottom surface of the outer surface of the active squeezing part 3, and a first groove 7 is provided on the bottom surface of the inner surface of the washing tub 1. The first protrusion 6 matches the first groove 7. The longitudinal section of the first protrusion 6 is rectangular, and correspondingly, the longitudinal section of the first groove 7 is a rectangular groove. The first protrusion 6 is a fan-shaped annular protrusion, and the first groove 7 is an annular groove.

[0038] like Figure 3 , 6 As shown in Figure 7, the active extrusion section 3 is provided with a first water passage 31. The extruded section 4 is provided with a second water passage 41. The extruded section 4 includes a first side 42 and a second side 43. The second water passage 41 includes a forward passage 411, where the water inlet of the forward passage 411 on the first side 42 is higher than the water inlet of the second side 43; the second water passage 41 also includes a reverse passage 412, where the water inlet of the reverse passage 412 on the first side 42 is lower than the water inlet of the second side 43. Multiple forward passages 411 and reverse passages 412 are provided, and the forward passages 411 at the same height are parallel to each other, as are the reverse passages 412 at the same height.

[0039] The advantages of the above-described configuration are as follows: In this embodiment, the washing device employs a squeezing washing method, which achieves a better washing effect during the squeezing washing process and prevents the washing load (such as clothes) from tangling. The invention also includes a first protrusion 6 and a first groove 7. The first protrusion 6 enters the first groove 7, breaking the originally long gap into multiple shorter gaps. Thus, even when there are many or heavy clothes at the bottom of the tub, this embodiment can effectively prevent clothes from embedding into the gap between the bottom of the washing tub and the active squeezing part, avoiding shortening the lifespan of the clothes.

[0040] In this embodiment, the area enclosed by the third side 32 of the active squeezing part 3 when rotating clockwise, the second side 43 of the squeezed part 4, and the washing tub 1 is called the right washing chamber; correspondingly, the area enclosed by the fourth side 33 of the active squeezing part 3 when rotating counterclockwise, the first side 42 of the squeezed part 4, and the washing tub 1 is called the left washing chamber. The washing load is divided into two parts and placed in the right washing chamber and left washing chamber of the washing tub 1 respectively. Under the action of the driving part 2, the third side 32 and the fourth side 33 of the active squeezing part 3 squeeze the washing load with the second side 43 and the first side 42 of the squeezed part 4, respectively.

[0041] When the active squeezing part 3 rotates clockwise, the distance between the third side 32 of the active squeezing part 3 and the second side 43 of the squeezed part 4 continuously shortens. As a result, the water level in the right washing chamber of the washing tub 1 temporarily rises slightly. The washing load in the right washing chamber of the washing tub 1 is subjected to the squeezing effect of the third side 32 of the active squeezing part 3 and the second side 43 of the squeezed part 4. At the same time, some of the washing water in the right washing chamber passes through the squeezed part 4. Most of the washing water that passes through passes through the reverse channel 412 on the second side 43 of the squeezed part 4 and is ejected from the first side 42 of the squeezed part 4 under the action of gravity. This impacts the washing load in the left washing chamber of the washing tub 1, causing the washing load in the left washing chamber to be washed, shifted, or tumbled. This disperses the washing load in the left washing chamber that was previously squeezed into a clump by the active squeezing part 3 and moves it away from the squeezed part 4, preventing it from accumulating near the squeezed part 4.

[0042] When the active squeezing section 3 rotates counterclockwise, the distance between the fourth side 33 of the active squeezing section 3 and the first side 42 of the squeezed section 4 shortens. This allows the washing water to pass through the forward channel 411 on the first side 42 of the squeezed section 4 and be ejected from the second side 43 of the squeezed section 4. The washing load in the left washing chamber can move with the active squeezing section 3, thus maintaining the washing effect. During each squeezing wash, the washing load is in a different position, allowing different parts of the washing load to be washed. However, if the washing load in the left washing chamber could only remain concentrated near the squeezed section 4, the squeezing effect between the fourth side 33 of the active squeezing section 3 and the first side 42 of the squeezed section 4 would be significantly weakened. Therefore, this embodiment avoids the situation where only the parts of the washing load initially squeezed by the active squeezing section 3 and the squeezed section 4 are excessively and repeatedly squeezed and washed, while other parts receive insufficient squeezing and washing due to minimal positional changes in the washing load.

[0043] Furthermore, a first water passage 31 is provided on the active squeezing part 3, so that during the rotation of the active squeezing part 3 and the squeezing process with the squeezed part 4, a portion of the water can pass through the first water passage 31, which can improve the washing effect on clothes and prevent the washing water level from rising too high and overflowing.

[0044] The second embodiment of the washing device of the present invention will now be described.

[0045] like Figure 1 , 4 As shown in Figure 7, the difference between this embodiment and the first embodiment is that, in this embodiment, the squeezed part 4 is not fixed inside the washing tub 1, but rather the squeezed part 4 is slidably sleeved with the output end of the drive part 2, so that the squeezed part 4 does not rotate with the rotation of the output end of the drive part 2. A second protrusion 8 is provided on the bottom surface of the outer surface of the squeezed part 4, and a second groove 9 is provided on the bottom surface of the inner surface of the washing tub 1. The second protrusion 8 matches the second groove 9. Furthermore, the second groove 9 can overlap with the first groove 7, forming the same groove. Correspondingly, the structure of the second protrusion 8 is the same as that of the first protrusion 6.

[0046] The advantage of the above-mentioned arrangement is that, in this embodiment, in addition to the advantages obtained by setting the second water passage 41 mentioned in the first embodiment, since the squeezed part 4 is not fixed, a new technical effect is further generated.

[0047] Driven by the drive unit 2, the active squeezing unit 3 rotates inside the washing tub 1, while the squeezed part 4 does not rotate with the active squeezing unit 3. Thus, for example, when the active squeezing unit 3 rotates clockwise and works with the squeezed part 4 to squeeze the clothes, the squeezed part 4 also rotates clockwise under the force, moving away from the active squeezing unit 3. Simultaneously, the squeezed part 4 can also squeeze clothes placed in another washing chamber, allowing the squeezed clothes to unfold freely. The active squeezing unit 3 then rotates counterclockwise until it again works with the squeezed part 4 to squeeze the washing load. In a washing area of ​​the same size, because the active squeezing unit 3 applies a force to the squeezed part 4 when rotating clockwise, causing the squeezed part 4 to rotate clockwise by a certain angle, compared to a fixed squeezed part 4 structure, the angle of rotation required for the active squeezing unit 3 to rotate counterclockwise until it again squeezes the clothes is reduced. This decreases the required angle of rotation for the active squeezing unit 3 to rotate counterclockwise, thereby improving washing efficiency and reducing energy consumption. A good washing effect can be achieved by the continuous reciprocating rotation of the active squeezing section 3.

[0048] Correspondingly, compared to the structure in the first embodiment, the squeezed part 4 in this embodiment also rotates within the washing tub 1. To facilitate the rotation of the squeezed part 4, a certain gap exists between the squeezed part 4 and the inner wall of the washing tub 1. Therefore, there is also a risk of the washing load becoming embedded in the gap. In this embodiment, the second protrusion 8 and the second groove 9 are provided to similarly prevent the washing load from becoming embedded in the gap.

[0049] It should be noted that the above embodiments are merely used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios. These adjustments do not depart from the principles of the present invention and therefore fall within the scope of protection of the present invention.

[0050] For example, in an alternative embodiment, the output end of the drive unit 2 can also be directly driven connected to the active squeezing unit 3. This connection can occur in various ways, such as the output end of the drive unit 2 entering the washing tub 1 and being directly driven connected to the active squeezing unit 3 (not shown in the figure), or the active squeezing unit 3 extending out of the washing tub 1 and being directly driven connected to the drive unit 2 (not shown in the figure). Alternatively, the drive unit 2 can also be a drive component such as a motor and a reducer (not shown in the figure). This achieves the same effect of allowing the active squeezing unit 3 to move closer to or further away from the squeezed part 4 as the output end of the drive unit 2 rotates (not shown in the figure).

[0051] For example, in another alternative implementation, such as Figure 8As shown, the longitudinal section of the first protrusion 6 can also be trapezoidal, and correspondingly, the longitudinal section of the first groove 7 can be a trapezoidal groove. This makes it less likely for the first protrusion 6 to detach from the first groove 7 when moving within it, thus improving the stability of the rotation of the active pressing part 3. Correspondingly, in the second embodiment, the second protrusion 8 can also have the same trapezoidal longitudinal section as the first protrusion 6 (not shown in the figure).

[0052] For example, in another alternative embodiment, a first groove 7 may be provided on the bottom surface of the outer surface of the active squeezing part 3, and a first protrusion 6 (not shown in the figure) may be provided on the bottom surface of the inner surface of the washing tub 1.

[0053] For example, in another alternative embodiment, in the second embodiment, a second groove 9 may be provided on the bottom surface of the outer surface of the squeezed part 4, and a second protrusion 8 (not shown in the figure) may be provided on the bottom surface of the inner surface of the washing tub 1.

[0054] For example, in another alternative embodiment, the first protrusion 6 and the first groove 7 may also be provided simultaneously or separately on the side of the active squeezing part 3 and the washing tub 1 (not shown in the figure).

[0055] For example, in another alternative embodiment, in the second embodiment, the second protrusion 8 and the second groove 9 may also be provided simultaneously or separately on the side of the squeezed part 4 and the washing tub 1 (not shown in the figure).

[0056] For example, in another alternative embodiment, the first water passage 31 (not shown in the figure) may not be provided on the active extrusion section 3.

[0057] For example, in another alternative implementation, depending on the actual situation, the forward channels 411 may not all be parallel, and the reverse channels 412 may not all be parallel. The heights of the forward channels 411 and the reverse channels 412 may also be adjusted.

[0058] For example, in another alternative embodiment, the connection between the shaft 5 and the active extrusion part 3 can also be that the shaft 5 is a spline, and a groove matching the spline is provided in the active extrusion part 3, with the spline located in the groove. The connection between the shaft 5 and the active extrusion part 3 can also be an interference fit or a bolted connection (not shown in the figure), etc.

[0059] For example, in another alternative embodiment, a filter screen (not shown in the figure) can also be provided in the first water passage 31 and the second water passage 41 to avoid the washing efficiency being affected by various impurities clogging the water passage during the washing process.

[0060] For example, in another alternative embodiment, the active squeezing part 3 and the squeezed part 4 can also be configured as two parts composed of materials with different hardnesses, i.e., the active squeezing part 3 and the squeezed part 4 each have a hard squeezing part on one side and a soft squeezing part on the other side (not shown in the figure). Furthermore, during the squeezing process, the active squeezing part 3 changes from a certain speed to zero, while the squeezed part 4 changes from zero speed to a certain speed and then back to zero. Therefore, the squeezing effect on the clothing is different when the active squeezing part 3 and the squeezed part 4 use materials with different hardnesses. Through different combinations, four types of washing chambers can be achieved: hard active squeezing part and hard squeezed part, hard active squeezing part and soft squeezed part, soft active squeezing part and hard squeezed part, and soft active squeezing part and soft squeezed part. Clothes of different materials can be placed into the corresponding washing chambers for washing.

[0061] In summary, the washing device of the present invention, by employing a squeezing washing method, achieves better washing results during the squeezing washing process and prevents the washing load (such as clothes) from tangling. The present invention also includes a first protrusion 6 and a first groove 7. The first protrusion 6 enters the first groove 7, breaking the originally long gap into multiple shorter gaps. This effectively prevents clothes from embedding into the gap between the bottom of the washing tub and the active squeezing part, even when there are many or heavy clothes at the bottom of the tub, thus avoiding shortening the lifespan of the clothes.

[0062] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A washing apparatus comprising a washing tub, an exterior of the washing tub being provided with a driving portion, characterized in that, The washing barrel is provided with a driving extrusion part and a driven extrusion part, The driving extrusion part is drivingly connected with the output end of the driving part, so that the driving extrusion part can approach or move away from the driven extrusion part with the rotation of the output end of the driving part; One of a first protrusion and a first groove is arranged on the outer surface of the driving extrusion part adjacent to the washing barrel, and the other of the first protrusion and the first groove is arranged on the inner surface of the washing barrel correspondingly, and the first protrusion matches the first groove. The driven extrusion part is slidingly sleeved with the output end of the driving part, so that the driven extrusion part does not rotate with the rotation of the output end of the driving part. When the driving extrusion part rotates clockwise to jointly extrude the clothes with the driven extrusion part, the driven extrusion part also rotates clockwise under the action force to move away from the driving extrusion part, and the driven extrusion part can also extrude the clothes placed in another washing cavity. The driving extrusion part is provided with a first water passage, and the driven extrusion part is provided with a second water passage. The driven extrusion part comprises a first side and a second side, The second water passage comprises a forward channel, and the water passage height of the forward channel at the first side is higher than that at the second side. The second water passage comprises a reverse channel, and the water passage height of the reverse channel at the first side is lower than that at the second side.

2. The washing apparatus according to claim 1, characterized by The output end of the driving part is directly drivingly connected with the driving extrusion part, or The driving part is also provided with a shaft body between the driving part and the driving extrusion part, one end of the shaft body is drivingly connected with the output end of the driving part, and the other end of the shaft body enters the washing barrel and is drivingly connected with the driving extrusion part.

3. The washing apparatus according to claim 1, wherein A first protrusion is arranged on the bottom surface of the outer surface of the driving extrusion part, and a first groove is arranged on the bottom surface of the inner surface of the washing barrel.

4. The washing apparatus according to claim 3, wherein The longitudinal section of the first protrusion is rectangular or trapezoidal, and correspondingly the longitudinal section of the first groove is rectangular groove or trapezoidal groove, and / or The first protrusion is a fan-shaped circular ring protrusion, and the first groove is a circular ring groove.

5. The washing apparatus according to claim 4, wherein One of a second protrusion and a second groove is arranged on the outer surface of the driven extrusion part adjacent to the washing barrel, and the other of the second protrusion and the second groove is arranged on the inner surface of the washing barrel correspondingly, and the second protrusion matches the second groove.

6. The washing apparatus according to claim 5, wherein A second protrusion is arranged on the bottom surface of the outer surface of the driven extrusion part, and a second groove is arranged on the bottom surface of the inner surface of the washing barrel.

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