JP2016540574A - Washing tub and washing machine - Google Patents

Abstract

The present invention belongs to the field of laundry equipment, and specifically relates to a washing machine inner tub and a washing machine. The inner tank tank wall (1) is provided with a plurality of press-formed bodies and a plurality of dewatering holes (3), and the press-formed body comprises a protrusion (2) facing the inner tank, and the bottom of the protrusion (2) Is a parallelogram, and the protrusions are arranged in rows and columns; the gaps between the protrusions (2) in adjacent columns and adjacent rows constitute a straight flow path through which the water flow passes, The dewatering hole (3) is provided on a straight channel. The present invention further provides a washing machine provided with the inner tub. By providing the inner tub having the above shape, the inner wall of the inner tub does not have any corners that easily wear the garment, and wear on the garment during the washing process is reduced. [Selection] Figure 1

Description

  The present invention belongs to the field of laundry equipment, and specifically relates to a washing machine inner tub and a washing machine.

  Many longitudinal ribs are provided on the inner tub wall of an existing washing machine, and many drain holes arranged in an orderly manner are provided between these longitudinal ribs. These longitudinal ribs reinforce the vertical direction of the tank wall, but have no reinforcing action in the circumferential direction. When the inclined rib is provided, the inclined rib reinforces the tank wall along the inclination direction of the rib, but has no reinforcing action in the direction perpendicular to the rib of the tank wall. Further, in the existing technology, the shape of the rib installed in the inner tank is relatively single, and generally a spherical or elliptical structure is adopted. As a result, there are no corners in the rib portion of the inner surface of the inner tub, and wear on the clothing during the operation of the washing machine is reduced.

  Chinese patent application number 20102018186528. No. X discloses a washing machine inner tank, which has an inner tank body having a plurality of through holes in the tank wall, a balance ring fixed to the upper part of the inner tank body, and an inner tank fixed to the lower part of the inner tank body Including the bottom. The through hole of the inner tank body is formed by a collar that is inclined from the inside to the outside, and has a shape in which the outer end is small and the inner end is large. In the circumferential direction of the tank wall of the inner tank body, there are a plurality of annular protrusion bands that are press-formed on the outside, and the through holes are evenly distributed in the intermediate portion of the annular protrusion band. In the utility model, the press-molded bodies are regularly arranged in the circumferential direction. The circumferential press-formed body in the circumferential direction has a single reinforcing action for the inner tank wall and does not have a reinforcing action for the vertical direction of the inner tank. In addition, the drain holes are also arranged in an orderly manner in the circumferential direction, and some annular areas that are not washed out are generated on the inner wall of the outer tank, and the inner tank cannot be thoroughly cleaned.

  Further, Chinese Patent Application No. 1608157A discloses an inner tub having a structure protruding inside the inner tub, and the inner tub is rotatably supported in the casing of the laundry treatment machine, and has at least one bottom plate and 1 Has two outer shells. Each of them is at least partially made of a thin plate, and either or both are provided with a structure protruding into the inner tank. The projecting structure consists of a projection facing the inner side of the inner tub, and the edge of the projection is basically circular, oval or oval. In this application, the center line of each row of protrusions has a relatively large strength, but the strength at the connection portion of each adjacent two rows of protrusions is relatively weak.

  In view of this, the present invention is particularly shown.

Chinese patent application number 20102018186528. X Chinese Patent Application No. 1608157A

  An object of the present invention is to overcome the deficiencies of the existing technology, and by providing a press-molded body structure of an inner tub, to provide a tub inner wall that beautifies the appearance of the tub wall and reinforces the strength of the tub wall. .

In order to realize the object of the present invention, the following technical solutions are particularly adopted.
A tank in a washing machine provided with a plurality of press-formed bodies and a plurality of dewatering holes on the tank wall, wherein the press-formed body is formed of a protrusion facing the inside of the inner tank, and the bottom of the protrusion is a parallelogram, Projections are arranged in rows and columns; gaps between projections in adjacent columns and adjacent rows constitute a straight channel through which water flows, and the dewatering holes are provided on the straight channel A washing machine tub.

  Further, the bottom of each protrusion is formed of a parallelogram having the same shape, and the parallelogram is a rectangle, a square, a rhombus, or a parallelogram in which adjacent sides are not equal.

  Further, the center lines of the protrusions in the same column intersect perpendicularly with the center lines of the protrusions in the same row.

  Further, the distance between adjacent protrusions in the same column and the same row is equal.

  Further, the projection has an upper surface and a transition curved surface having different curvatures, and the connection line from the center of the projection to any one point of the projection bottom along the outer shell of the projection has two different curvatures. Consists of arc lines.

  Furthermore, the intersecting line of the upper surface and the transition curved surface constitutes a parallelogram having the same shape as the parallelogram at the bottom of the protrusion and a different size, and the length and width of the parallelogram formed by the intersecting line of the two curved surfaces are Smaller than the length and width of the parallelogram at the bottom of the protrusion.

  Furthermore, the rounded corners are connected between adjacent sides of the parallelogram formed by the intersection of the projection bottom and the two curved surfaces.

  Further, the sides of the parallelogram are curves that gradually protrude outward from both ends toward the middle.

  Furthermore, each straight flow path constitutes a flow path network in which a plurality of horizontal flow paths installed in parallel and a plurality of vertical flow paths installed in parallel intersect. Dehydration holes are respectively provided at the intersections of the horizontal channel and the vertical channel.

  Further, the gaps between the protrusions in adjacent columns constitute a straight vertical flow path, and the gaps between the protrusions in adjacent rows constitute a straight lateral flow path perpendicular to the vertical flow path. At least one dewatering hole is provided at each intersection of the horizontal flow path and the vertical flow path.

  Another object of the present invention is to provide a washing machine provided with the inner tub.

  Compared with the existing technology, the beneficial effects of the present invention are as follows. By providing a press-molded body of the inner tank having the above shape, a flow path is formed which is arranged in the inner tank inner wall vertically and horizontally, and the strength distribution of the structure in the horizontal and vertical directions of the inner tank is more uniform. Become. More specially, the upper surface of the protrusion, the transition curved surface, the transition curved surface, and the connecting part between the tank walls should adopt a smooth arc transition, and further adopt the arc-shaped upper surface and the transition curved surface. As a result, the inner wall of the inner tub does not have any corners that easily wear the clothes, and wear on the clothes during the washing process is reduced.

FIG. 1 is a schematic diagram of the structure of the inner tank of the present invention. FIG. 2 is a schematic structural view of the inner tank wall of the present invention. FIG. 3 is a partially enlarged view of FIG. FIG. 4 is a schematic diagram of a developed cross section of the aa portion of FIG. FIG. 5 is a schematic structural view of a preferable inner tank wall. FIG. 6 is a partially enlarged view of FIG. FIG. 7 is a schematic structural view of a more preferable inner tank wall. FIG. 8 is a partially enlarged view of FIG. FIG. 9 is a schematic structural diagram of a cross section taken along line MM in FIG. FIG. 10 is a schematic structural view of a preferred cross section taken along line MM in FIG.

Example 1
The said inner tank of this invention is demonstrated still in detail combining FIG.

  As shown in FIGS. 1 and 2, in a tub in a washing machine, a plurality of press-molded bodies arranged in rows and columns on a tub wall 1 and a plurality of dewatering units installed at the bottom of the tub wall 1 A hole 3 is provided. Each of the press-molded bodies is composed of protrusions 2 facing the inside of the inner tank. The protrusion 2 is surrounded by an upper surface and a transition curved surface, and the bottom of the protrusion 2 is a rectangle chamfered in an arc shape. The gap between the protrusions 2 in adjacent columns constitutes a straight vertical flow path 4, and the gap between the protrusions 2 in adjacent rows forms a straight horizontal flow path 5 that is perpendicular to the vertical flow path 4. . Dehydration holes 3 are respectively provided at the intersections of the horizontal flow path 5 and the vertical flow path 4.

  Due to the above installation, when washing in the washing machine, the water in the inner tub flows along the straight vertical flow path 4 and / or the horizontal flow path 5 and a water flow is generated, and the outer tub is formed from the water-permeable holes at the intersection. In this process, the water wash the clothes. In the present embodiment, the bottom of the projection 2 is a circular arc chamfered rectangle, and may be a square, a rhombus, or any one of the parallelograms.

  As shown in FIG. 3, the tank wall 1 has a plurality of rows, CC, DD,... Arranged parallel to the axial direction of the inner tank at equal intervals, and perpendicular to the axis of the inner tank. A plurality of rows, AA, BB,... Arranged at equal intervals are provided, and a protrusion 2 is provided at each column and at the intersection of each row. The bottom of the projection 2 is a circularly chamfered rectangle, and the center of the rectangle overlaps the intersection of the corresponding row and column. As a result, it has been realized that the press-formed bodies formed by the protrusions are arranged evenly in rows and columns on the inner tank wall.

  As shown in FIGS. 3 and 4, in this embodiment, the protrusion 2 is surrounded by an upper surface and a transition curved surface having different curvatures, and the upper surface and the transition curved surface are smoothly transitioned and connected. The upper surface is a curved surface that decreases from the center of the protrusion toward the periphery. The transition curved surface is a curved surface in which one end is smoothly transitioned and connected to the periphery of the upper surface, and the other end is smoothly transitioned through a rounded corner and connected to the tank wall 1. The transition curved surface is a curved surface that decreases from the center of the protrusion toward the periphery, and the curvature radius of the transition curved surface is smaller than the curvature radius of the upper surface. As a result, the connection line from the center of the protrusion to any one point on the bottom of the protrusion along the outer shell of the protrusion is composed of two arcs of different curvatures, and any angle exists on the surface of the protrusion. Without reducing the wear on clothes in the washing process of the washing machine.

  In the present embodiment, the intersecting line of the upper surface and the transition curved surface constitutes a rectangle having the same shape and different size from the rectangle chamfered in the arc shape of the bottom of the protrusion. In this embodiment, the intersecting line of the upper surface and the transition curved surface may be a square, a rhombus, a parallelogram, a circle, or any one geometric shape, and preferably has the same shape as the bottom of the protrusion and a different size. Projecting the intersection of the top surface and the transition surface to the projection line of the tank wall, both must be inside the shape line of the bottom of the protrusion, thereby ensuring that the transition surface gradually protrudes from top to bottom .

  In this embodiment, each rectangular side of the bottom of the protrusion is a curve that gradually protrudes outward from both ends toward the center, whereby the gap between adjacent protrusions becomes narrower from both ends toward the middle. Thereby, the widths of the vertical flow path 4 and the horizontal flow path 5 are changed, and in the washing process, the flow of water flows through the flow paths of different widths, the flow velocity is changed, and the effect of scouring the clothes is generated. The washing effect was improved.

  In this embodiment, the connection end of the transition curved surface and the upper surface is the upper end of the transition curved surface, and the connection end of the transition curved surface and the tank wall 1 is the lower end of the transition curved surface. The transition curved surface is a square-shaped curved surface that contracts from bottom to top. The contour of the upper end of the cone-shaped curved surface is a rectangular contour having the same shape as the outer periphery of the upper surface, and the contour of the lower end is a concentric, isomorphic, and different sized rectangular contour with the contour of the upper end. The contours of the upper end and the lower end are concentric, isomorphic, and different sized square contours, and all the four corner portions of the rectangular contour are chamfered in an arc shape. The corner portion of the side of the transition curved surface is an arc-shaped conical surface that shrinks inward from the bottom to the top. Thus, the outer periphery of the transition curved surface is surrounded by a smoothly transitioned curved surface, thereby reducing wear on the laundry clothes.

  In the present embodiment, the transition curved surface is a smooth curved surface in which the upper and lower ends respectively transition and connect to the upper surface and the tank wall 1 gently. The transition curved surface gradually curves outward from top to bottom and forms a curved surface that smoothly extends outward from top to bottom. At the same time, a distance 3 between adjacent transition curved surfaces is gradually narrowed from top to bottom, and a flow path 3 is formed between adjacent protrusions 2 that gradually narrows from top to bottom.

  In this embodiment, the thickness of the tank wall 1 is 0.3 to 1 mm, preferably 0.5 mm. The distance from the center of the protrusion 2 to the tank wall 1 is a distance H, and the ratio of the distance H to the thickness of the tank wall is 10: 1 to 2: 1. The ratio of the length of the lower end contour to the upper end contour of the transition curved surface is 5: 1 to 1.1: 1.

  In this embodiment, the transition curved surface of the protrusion 2 is chamfered in an arc shape and connected to the tank wall 1. As a result, the bottom of the gap between the protrusions is a horizontal plane, and both sides of the horizontal plane are smoothly curved upward to form the bottoms of the vertical channel 4 and the horizontal channel 5. In the present embodiment, the rectangular side that forms the bottom of the protrusion is a curve provided so as to protrude outward from both ends toward the middle, so the narrowest part of the vertical flow path 4 and the horizontal flow path 5 is , The central part of the corresponding side of the adjacent protrusion. The ratio of the narrowest channel width to the tank wall thickness is 10: 1 to 1: 4.

  In this embodiment, the corner portion of the side of the transition curved surface is an arc-shaped weight-shaped curved surface that shrinks inward from the bottom to the top. As a result, the intersection of the vertical flow path 4 and the horizontal flow path 5 surrounded by the arcuate weight-shaped curved surface at the corners corresponding to the four adjacent protrusions forms a recess having a flat bottom surface. A circular dewatering hole 3 is provided in any central portion of each recess. The dewatering holes 3 are provided coaxially with the diagonal intersections of the upper surfaces of the corresponding four protrusions 2. The ratio of the diameter of the dewatering hole 3 to the thickness of the tank wall 1 is 4: 1 to 1: 1.

  The upper surface of the protrusion and the transition curved surface, the connection surface between the transition curved surface and the tank wall adopt a smooth arc transition, and further adopt the arc-shaped upper surface and the transition curved surface to the inner tank inner wall. There are no corners that tend to wear the garment, reducing wear on the garment during the washing process.

  The protrusions arranged in rows and columns constitute a channel network composed of straight vertical and horizontal channels (4, 5), and dewatering holes at the intersections of the vertical and horizontal channels (4, 5). 3 in the dehydration process of the washing machine, the water in the inner tub is discharged out of the inner tub from the dehydration hole 3 provided at the bottom of the crossing portion of the flow path, thereby having a relatively good dehydration effect. Achieve.

Example 2
As shown in FIG. 5, in the tub in the washing machine, a plurality of press-molded bodies arranged in rows and columns on the tub wall 1, and a plurality of dewatering holes 3 installed at the bottom of the tub wall 1 Is provided. Each of the press-molded bodies is composed of protrusions 2 facing the inside of the inner tank. The protrusion 2 is surrounded by an upper surface and a transition curved surface, and the bottom of the protrusion 2 is formed of parallelograms having the same shape and the same size. The gap between the protrusions 2 in adjacent rows constitutes a straight vertical flow path 4, and the gap between the protrusions 2 in adjacent rows forms a straight horizontal flow path 5 that intersects the vertical flow path 4. . Dehydration holes 3 are respectively provided at the intersections of the horizontal flow path 5 and the vertical flow path 4.

  As shown in FIG. 6, the tank wall 1 has a plurality of rows EE, FF,... Perpendicular to the axis of the inner tank and arranged at equal intervals, and has the same crossing angle as the lines. A plurality of columns, GG, KK,..., Which are present and arranged at equal intervals, are provided, and the intersection angle of the rows and columns is the same as the depression angle of the adjacent sides of the parallelogram constituting the protrusion. It is. Protrusions 2 are provided at the intersections of each column and each row. The bottom of the protrusion 2 is a parallelogram chamfered in an arc shape, and the center of the parallelogram overlaps the intersection of the corresponding row and column. As a result, it has been realized that the press-formed bodies formed by the protrusions are arranged evenly in rows and columns on the inner tank wall.

  In the present embodiment, a parallelogram surrounded by four lines EE, FF, GG, and KK is the minimum unit, and a protrusion 2 is provided at each intersection, and each EG protrusion , EK protrusion, FG protrusion and FK protrusion. The gap between the EG protrusion and the FG protrusion and the gap between the EK protrusion and the FK protrusion constitute a straight lateral flow path 5 through which water flows, and the gap between the EG protrusion and the EK protrusion, The gap between the protrusion and the FK protrusion constitutes a straight longitudinal flow path 4 through which the water flow passes.

  In the present embodiment, at least one dewatering hole 3 is provided at the intersection of the longitudinal channel 4 and the lateral channel 5. When there are a plurality of dewatering holes 3, the center of each dewatering hole 3 is provided symmetrically with respect to the center of the minimum unit. When there is one dewatering hole 3, the center of the dewatering hole 3 overlaps the center of the smallest unit. In this embodiment, preferably two dewatering holes 3 are provided. The centers of the two dewatering holes 3 are provided on the connection line between the center of the EK protrusion and the center of the FG protrusion, and are symmetrical with respect to the connection line of the center of the FK protrusion and the center of the EG protrusion.

  In the present embodiment, for adjacent protrusions that are not located in the same row or column, the central connection line is divided into an acute connection line and an obtuse connection line. The acute angle connection line is a center connection line passing through an arc-shaped chamfered surface in which the depression angle of adjacent sides in the parallelogram at the bottom of the protrusion is an acute angle. For example, the connection line between the center of the EK protrusion and the center of the FG protrusion It is. The obtuse angle connecting line is a center connecting line passing through an arc-shaped chamfered surface having an obtuse angle of an adjacent side in the parallelogram at the bottom of the protrusion. For example, the connecting line between the center of the FK protrusion and the center of the EG protrusion It is.

  In the present embodiment, the center of the dewatering hole 3 is provided on an acute connection line. In addition, the two dewatering holes 3 installed at one intersection of the vertical channel 4 and the horizontal channel 5 are symmetrical with respect to the corresponding obtuse angle connecting line.

  In the present embodiment, the intersecting line of the upper surface and the transition curved surface forms a parallelogram chamfered in an arc shape having the same shape as the bottom of the protrusion and a different size. In this embodiment, the intersecting line of the upper surface and the transition curved surface may be a square, a rhombus, a parallelogram, a circle, or any one geometric shape, and preferably has the same shape as the bottom of the protrusion and a different size. Projecting the intersection of the top surface and the transition surface to the projection line of the tank wall, both must be inside the shape line of the bottom of the protrusion, thereby ensuring that the transition surface gradually protrudes from top to bottom .

Example 3
As shown in FIG. 7, in the washing machine inner tub, a plurality of press-molded bodies arranged in rows and columns on the tub wall 1, and a plurality of dewatering holes 3 installed at the bottom of the tub wall 1 Is provided. Each of the press-molded bodies is composed of a protrusion facing the inside of the inner tank. The protrusion includes a first protrusion 21 and a second protrusion 22. The bottoms of the first protrusion 21 and the second protrusion 22 are made of rectangles having the same shape and different sizes. The first protrusions 21 and the second protrusions 22 are alternately arranged, and the gap between the protrusions in adjacent rows constitutes a straight vertical flow path 4 in which the walls on both sides expand to the outside alternately left and right, adjacent to each other. The gaps between the protrusions 2 in the row to be formed constitute a straight lateral flow path 5 that is perpendicular to the vertical flow path 4 and whose walls on both sides expand outwardly alternately left and right. Dehydration holes 3 are respectively provided at the intersections of the horizontal flow path 5 and the vertical flow path 4.

  As shown in FIG. 8, the tank wall 1 has a plurality of rows, LL, MM, NN,.. A plurality of columns, HH, PP, QQ, II,..., Which are arranged at equal intervals are provided, and protrusions are formed at the intersections of each column and each row. Provided. In the same column and the same row, the first protrusions 21 and the second protrusions 22 are alternately arranged at equal intervals, and the centers of the first protrusions 21 and the second protrusions 22 are respectively in the rows and columns. It overlaps corresponding to the intersection.

  As shown in FIG. 9, in this embodiment, the distance from the center point of the first protrusion 21 and the second protrusion 22 to the tank wall 1 is equal. By alternately providing protrusions of different sizes, the water flow in one horizontal flow path 5 and one vertical flow path 4 is shifted left and right, the water flow speed is changed, and the water flow in the inner tank is changed. Changes to achieve the washing effect of washing and washing clothes.

  The altitude values from the center point of the first protrusion and the second protrusion to the tank wall can be different values. As shown in FIG. 10, the ratio of the distance from the center point of the first protrusion 21 to the tank wall and the distance from the center point of the second protrusion 22 to the tank wall 1 is 2: 1. Thereby, the surface of the inner wall of the inner tub constitutes an uneven wavy surface, and the washing efficiency of the washing machine is improved by the effect that the clothes in the inner tub and the wall of the inner tub are rubbed together in the operation process of the washing machine.

  The present invention is not limited to the above examples. Various modifications and changes made to the present invention without departing from the spirit or scope of the present invention for technical solutions that can be clearly understood by those skilled in the art are all described in the claims of the present invention and equivalents thereof. Within the scope of the substitution, the present invention encompasses such modifications and changes.

DESCRIPTION OF SYMBOLS 1 Tank wall 2 Protrusion 3 Dehydration hole 4 Longitudinal flow path 5 Lateral flow path 21 1st protrusion 22 2nd protrusion

Claims (10)

  A tank in a washing machine provided with a plurality of press-formed bodies and a plurality of dewatering holes (3) on the tank wall (1), wherein the press-formed body is composed of a protrusion (2) facing the inside of the inner tub, The bottom of 2) is a parallelogram and the projections are arranged in rows and columns; gaps between the projections (2) in adjacent columns and adjacent rows are straight channels through which water flows A tub in the washing machine, characterized in that the dewatering hole (3) is provided on a straight channel.   The bottom of each projection (2) consists of parallelograms of the same shape, wherein the parallelograms are rectangles, squares, rhombuses, or parallelograms whose adjacent sides are not equal. The washing machine inner tank as described.   3. The washing machine inner tub according to claim 2, wherein the center lines of the protrusions (2) in the same row intersect perpendicularly with the center lines of the protrusions in the same row.   The washing machine tub according to claim 1, characterized in that the distance between adjacent protrusions (2) in the same column and the same row is equal.   The projection (2) has an upper surface and a transition curved surface having different curvatures, and the connection line from the center of the projection to any one point of the projection bottom along the outer shell of the projection has two different curvatures. The tub in the washing machine according to claim 1, wherein the tub is an arc wire.   The intersecting line of the upper surface and the transition curved surface constitutes a parallelogram having the same shape as the parallelogram at the bottom of the protrusion and a different size, and the length and width of the parallelogram formed by the intersecting line of the two curved surfaces is the protrusion. The washing machine inner tub according to claim 1, wherein the tub is smaller than the length and width of the parallelogram at the bottom.   6. The washing machine inner tub according to claim 5, wherein the adjacent sides of the parallelogram formed by the intersection of the bottom surface of the projection and the two curved surfaces are connected to each other by shifting a rounded corner.   The washing machine inner tub according to claim 6, wherein the sides of the parallelogram are curves that gradually protrude outward from both ends toward the middle.   Each straight flow path constitutes a flow path network in which a plurality of horizontal flow paths (5) installed in parallel and a plurality of vertical flow paths (4) installed in parallel intersect, The washing machine inner tub according to claim 1, characterized in that a dewatering hole (3) is provided at each of intersections of the horizontal flow path (5) and the vertical flow path (4).   A washing machine, wherein the inner tub according to any one of claims 1 to 9 is installed in the washing machine.

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