CN104074031B - It is a kind of that there is the washing machine for spraying outer bung - Google Patents

Abstract

The invention discloses a washing machine with a spray outer barrel cover, which comprises an inner barrel, an outer barrel and an inner circulation spray system, an outer barrel cover is arranged above the outer barrel, and the inner circulation spray system is mainly composed of a spray member, A circulation pipe and a circulation pump are formed, wherein the spraying member of the present invention includes a spray water outlet formed by the outer barrel cover and a water inlet obliquely arranged on the outer periphery of the outer barrel cover; the circulation pipe includes at least two sections of pipes with different inner diameters One end communicates with the water inlet, and the other end communicates with the circulation pump. The spray water flow of the spray member is controlled by the change of the inner diameter of the circulation pipe and the inclination angle of the water inlet. The spraying component of the present invention has simple structure and low cost, and the internal circulation spraying system does not splash water at any water level, and the spraying area is stable and sprays evenly, which is helpful for washing clothes.

Description

A washing machine with a spray outer bucket cover

technical field

The invention relates to the field of washing machines, in particular to a washing machine with a spray cycle washing function, especially a washing machine with a spray outer bucket cover.

Background technique

At present, there are endless development types of washing machines all over the world. In response to the needs of people's lives in the market, designers have developed washing machines with various functions from different angles, such as: washing machines with centrifugal force washing machines, washing machines with spraying devices, and dual-power washing machines. washing machine etc.

Japan's Panasonic adopts a centrifugal method. The rotation of the inner barrel drives the water to rotate in the same direction. Due to inertia and centrifugal force, the rotating water is injected into the spray device on the outer barrel through the chute on the outer barrel wall, and the water passes through the spout on the outer barrel. After the spraying device, it forms a waterfall and sprays the washing liquid in the inner barrel to beat the washing liquid in the barrel to form more foam, which is the so-called "foam washing" technology.

The patent document with the application number 98107000.0 discloses a washing machine, which is provided with a washing and dehydrating tub for containing laundry, a water tub which is accommodated in such a manner that the washing and dehydrating tub can be freely rotated, and a drive mechanism for rotationally driving the washing and dehydrating tub. The rotation of the washing and dewatering tub causes the washing water between the outer side of the washing and dehydrating tub and the tub to rise, and water is sprinkled into the washing and dehydrating tub from above.

From the content disclosed in the reference document, it can be seen that the purpose of the reference document is to provide a washing machine that does not depend on the rotation of the pulsator, circulates the washing water, does not damage the laundry, improves washing performance and reduces washing unevenness. Due to the stirring force generated by the rotation of the washing and dewatering tub, the central part of the washing water surface in the tub drops and the water surface between the outside of the washing and dehydrating tub and the tub continuously rises until the water level of the washing water exceeds the upper end of the washing and dehydrating tub. Sprinkle water to the inside of the washing and dehydrating tub at a high level. It is also possible to further set a cover body above the tub to form a sprinkling discharge part between it and the upper part of the washing and dewatering tub, and to form a cover on at least one of the outer peripheral side of the washing and dehydrating tub and the inner peripheral side of the tub that is suitable for corresponding to the rotation of the washing and dehydrating tub. The guide wall to which the rising wash water is guided. Compared with the prior art at that time, the reference document does have beneficial effects such as improving the washing performance without damaging the laundry, and at the same time reducing uneven washing. But, this kind of laundry method that the water level in the washing bucket is raised by centrifugal force to cause the spray washing benefit actually has some defects. It has certain requirements for the rotating speed of the washing bucket and the water level of the inner bucket. When rotating speed, water level did not reach certain requirement, the water of inner barrel can't reach the spray mouth place of washing outer bucket cover at all, just can't form the effect of spray washing.

The application number is 02155940.6, which discloses a washing machine and a washing method using it. In a washing machine that effectively removes dirt by using the action of detergent foam, after the detergent is dissolved, the detergent water is generated to wash The detergent foam is injected from above onto the laundry in the washing and dehydrating tank to ensure good cleaning power and reduce the occurrence of uneven washing.

The invention patent with the application number 02142716.X discloses a washing machine that circulates the washing water for washing and cleaning. The washing machine can rotate freely in the water storage tank to accommodate the washing and dehydration tank for storing laundry, and is driven by a motor to rotate. A pump chamber is formed on the inner surface of the water storage tank, and the washing water between the washing and dehydration tank and the water storage tank is collected in the pump chamber through the rotation of the washing and dehydration tank, and the water is pumped upward through the circulation path connected to the pump chamber. In fact, this is also a washing machine that circulates the washing water, and the washing water is circulated through the circulating water circuit through the pump chamber.

In the above-mentioned reference documents, the concepts of centrifugal force washing machine and spray washing machine have been disclosed. Compared with the previous washing machines, there are great improvements in principle, function, structure, etc., but the washing machines in these prior art are still There are following disadvantages:

1) When the centrifugal method is used to form a waterfall spray, there are certain requirements for the water level and the speed of the inner bucket, and if the water level is too low or the speed of the inner bucket is not enough, the effect of the waterfall spray cannot be achieved;

2) Some of the existing washing machines do not have a special spraying device at all, and some spraying devices occupy too much cover area of the outer tub, which affects the water injection effect of the washing machine;

3) There is no special water barrier at the outlet of the water jet of the existing washing machine, the position of the waterfall jet in the bucket is not fixed, and the water flow is unstable from time to time.

The invention patent with the application number of 200410004726.9 discloses a kind of internal circulation spray washing machine, which adopts the washing method of circulation spray, and a spray device is arranged on the outer barrel cover of the washing machine to achieve the effect of spray washing. The spraying device includes: a water injection pipe, a water cavity, a waterfall forming part, and a limit baffle, and the water cavity is composed of an upper water cavity and a lower water cavity. The washing water is pressed into the spray device through the circulation pipe by the water pump, and first enters the water cavity, where the water is temporarily stored. The wash water then reaches the place where the waterfall is formed, where it is "compressed" to form the rudiment of the waterfall. Finally, the waterfall is limited by the limit baffle and sprayed in the inner barrel.

Although this type of spraying device can achieve the effect of spraying and washing, it still has the following disadvantages:

1) During the washing process, the spray water will splash, especially in the medium and high water level cycle spray washing, the splash is large, and there are potential safety hazards;

2) The spray drop point area deviates from the center of the inner bucket, and the spray utilization rate is low;

3) The spray water flow is uneven, and the spray washing and rinsing effects are not good.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing machine with simple structure, low cost, no water splashing at any water level, and stable spray area.

The purpose of the present invention is also to provide an outer bucket cover with a spraying function.

In order to solve the above-mentioned technical problems, the basic idea of the technical solution adopted by the present invention is: a washing machine with a spray outer bucket cover, including an inner bucket, an outer bucket and an internal circulation spray system, and an outer bucket cover is arranged above the outer bucket. The internal circulation spray system is mainly composed of spray components, circulation pipes and circulation pumps.

The spraying component includes a spray outlet formed by the outer barrel cover and a water inlet obliquely arranged on the outer periphery of the outer barrel cover;

The circulation pipe includes at least two sections of pipes with different inner diameters, one end communicates with the water inlet, and the other end communicates with the circulation pump, and the spray water flow of the spray member is controlled by changing the inner diameter of the circulation pipe and matching the inclination angle of the water inlet.

Further, the circulation pipe includes a first pipeline with an inner diameter of d and a second pipeline with an inner diameter of D, 1<D/d<1.8, the first pipeline communicates with the outlet of the circulation pump, and the second pipeline It is connected with the water inlet of the sprinkler component.

Further, the end of the circulation pipe communicating with the water inlet of the spraying component is provided with a bending head, satisfying that the angle θ of the water flow diverted from the circulation pipe into the water inlet is 100°<θ<108°; preferably, θ is 105°.

Further, the length L1 of the second pipeline and the total length L of the circulation pipe satisfy 0.1<L1/L<0.5.

Further, the inclination angle α between the water inlet and the horizontal is 10°<α<18°.

Further, the distance L0 between the lower surface of the spray outlet and the upper surface of the balance ring arranged above the inner barrel is 4mm<L0<12mm.

Further, the spray outlet includes a horizontal portion close to the water inlet and an inner inclined portion in sequence along the direction from the outer ring to the inner ring of the outer bucket cover, and the angle β between the horizontal portion and the inclined portion is 150°<β< 180°; preferably, 160°<β<170°.

Further, the lower surface of the spray outlet is provided with at least one set of curved water retaining ribs to change the water flow state, and side retaining ribs are provided on both sides along the water flow direction. The ribs on both sides are in a figure-eight shape, the narrow mouth communicates with the water inlet, and the wide mouth is the spray mouth for spraying water.

Preferably, the edge of the side opposite to the water inlet is provided with a reinforcing rib protruding from the lower surface, and the two ends of the reinforcing rib are connected with the side ribs.

Further, the water retaining rib includes an arc-shaped water retaining rib, the center of which is located on one side of the water inlet, and the two ends of the arc-shaped water retaining rib are extended to connect with the two side retaining ribs.

Preferably, the lowest point of the arc-shaped water retaining rib is located at the transition between the horizontal part and the inclined part of the spray outlet.

Further, the water retaining rib includes a multi-segment bent diversion water retaining rib, both ends of which are located on the edge of the spray outlet on the side opposite to the water inlet, and the gap between the diversion water retaining rib and its two ends The edge of the spray outlet cooperates to form a closed area, and the arc chamfering of the bending part of the diversion water retaining rib is located in the closed area.

Preferably, the multi-segment bent diversion water retaining ribs include the first diversion water retaining ribs, which are a figure-eight structure with a closed top. The edge of the spray outlet on the opposite side of the water outlet also includes a second diversion water retaining rib, the second diversion water retaining rib is located inside the first diversion water retaining rib, and the ends of the two diversion water retaining ribs overlap.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

The present invention integrally forms a spray member on the outer barrel cover of the existing washing machine. The spray member has simple structure, simple process, small design area, and low cost; by improving the direction of water flow into the spray member and improving the circulation pipe There are at least two inner diameters of different sizes, so that the spraying effect of the present invention is not limited by the water level and the rotating speed of the inner tub, the spraying process does not splash water, and the spraying area is uniform and stable, and always falls on the center area of the inner tub, which is conducive to wetting when washing Clothes, speed up the dissolution of the washing liquid, make it fully combined with the clothes, take effect, separate the stains from the clothes, and help the further cleaning of the clothes; spraying during rinsing is beneficial to remove foam and improve the cleaning ratio; The shower member is an integrally formed structure of the outer barrel cover, which cooperates with the balance ring below. During the rotation of the inner barrel, part of the spray water flows to the outside of the inner barrel with the rotation of the balance ring, and has the function of cleaning the outer wall of the inner barrel.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the washing machine spray outer barrel cover of the present invention;

Fig. 2 is a schematic diagram of the installation structure of the circulation pipe and the water inlet of the present invention;

Fig. 3 is a schematic cross-sectional view of a spray member and a circulation pipe of the present invention;

Fig. 4 is a schematic cross-sectional view of a spray member of the present invention;

Fig. 5 is a partial schematic view of the outer bucket cover with a spray member in the present invention;

Fig. 6 is a schematic structural view of the circulation pipe of the present invention;

Fig. 7 is a schematic diagram of the parameter range coordinates of the preferred spray water flow formed by the washing machine of the present invention;

Fig. 8 is a schematic diagram of the spray water flow of the washing machine of the present invention;

Fig. 9 and Fig. 10 are schematic diagrams of different spray water flows of the washing machine of the present invention;

11 to 14 are structural schematic diagrams of different embodiments of the spray member of the present invention.

Detailed ways

As shown in Figures 1 to 14, the washing machine with a spray outer barrel cover according to the present invention includes an inner barrel 1, an outer barrel 2 and an inner circulation spray system, an outer barrel cover 3 is arranged above the outer barrel 2, and the inner barrel The circulating spraying system is mainly composed of a spraying component 4, a circulating pipe 5 and a circulating pump (not shown in the figure), wherein the spraying component 4 of the present invention includes a spraying water outlet 41 composed of an outer barrel cover and a The water inlet 42 is obliquely arranged on the outer periphery of the outer barrel cover; the circulation pipe 5 includes at least two sections of pipelines with different inner diameters, one end communicates with the water inlet 42, and the other end communicates with the circulation pump. The spray water flow of the spray member.

As shown in Figure 4, the inclined angle α between the water inlet and the horizontal according to the present invention is 10°<α<18°, preferably α is 15°, and the water flow at this angle cooperates with the spray outlet to form a close arc Shaped reflective water flow, the water flow is stable and does not splash, and does not splash at any water level, which is conducive to washing large-volume bedding, down, bed sheets and more clothes, while the existing circulating spray system, although When washing in low to medium water cycles, there is very little splashing, but with high water levels, there is more splashing.

Further, the spray outlet includes a horizontal portion 43 close to the water inlet and an inner inclined portion 44 (see FIG. 5 ) along the direction from the outer ring to the inner ring of the outer bucket cover. The angle β between the horizontal portion 43 and the inclined portion 44 is 150°<β<180°; preferably, 160°<β<170°.

As shown in Figure 6, the circulation pipe 5 of the present invention includes a first pipeline 51 with an inner diameter of d and a second pipeline 52 with an inner diameter of D, 1<D/d<1.8, the first pipeline 51 and the circulation The outlet of the pump is connected, and the second pipeline 52 is connected with the water inlet 42 of the spraying member (see FIG. 3 ); the length L1 of the second pipeline and the total length L of the circulation pipe satisfy 0.1<L1/L<0.5.

For the above-mentioned circulating pipe to communicate with the circulating pump outlet and the water inlet 42 of the spraying member for convenience, the end of the second pipeline 52 communicating with the water inlet 42 of the spraying member is provided with a bending head 53, which meets the requirements of the circulating pipe 5. The redirection angle θ of water entering the water inlet 42 is 100°<θ<108° (see FIG. 3 ); preferably, θ is 105°. The end of the first pipeline 51 is also provided with a bending head 54 (refer to FIG. 6 ).

As shown in Figure 3, since the spray outlet 41 of the present invention is integrally formed as a part of the outer barrel cover, it is directly adjacent to the balance ring 6 located above the inner barrel, and the lower surface of the spray outlet is in contact with the inner barrel. The distance L0 between the upper surfaces of the balance rings 6 is 4mm<L0<12mm. The spray water outlet 41 cooperates with the balance ring 6 below, and part of the spray water flows along the balance ring to the outside of the inner barrel during the rotation of the inner barrel, which has the function of cleaning the outer wall of the inner barrel.

As shown in Figure 11 to Figure 14, it is a schematic structural view of the lower surface of the spray outlet of the present invention, the lower surface of the spray outlet 41 is provided with at least one set of curved water retaining ribs 7 that change the state of the water flow, along the water flow Side ribs 8 are arranged on both sides of the direction, and the side ribs on both sides are in a figure-eight shape. The narrow mouth communicates with the water inlet, and the wide mouth is the spray mouth of the spray water flow. The spray water flow forms a gradual downward direction from the spray mouth A wide paraboloid with a lantern-like local structure. Preferably, the height of the curved water retaining rib 7 is greater than the height of the side retaining rib 8, and both are less than L0. More preferably, the edge on the side opposite to the water inlet is provided with a reinforcing rib 9 protruding from the lower surface. Both ends of the reinforcing convex rib 9 are connected with the side ribs 8 .

Embodiment one

As shown in Figure 11, the water retaining rib 7 described in this embodiment includes an arc-shaped water retaining rib 71, the center of which is located on one side of the water inlet, and the two ends of the arc-shaped water retaining rib 71 extend to connect with the two sides of the retaining rib. 8 connections. The arc-shaped water-retaining rib 71 gathers water first and then disperses it, so that the water flow is stable (refer to FIG. 8 ).

Preferably, the lowest point A of the arc-shaped water retaining rib is located at the transition between the horizontal portion 43 and the inclined portion 44 of the spray outlet.

Embodiment two

As shown in Figure 12, the water retaining rib 7 described in this embodiment includes a multi-segment bent diversion water retaining rib 72, and the two ends are located at the edge of the spray outlet on the side opposite to the water inlet, that is, the reinforcing rib 9, the diversion water retaining rib 72 and the edge of the spray outlet between its two ends cooperate to form a closed area B, the arc chamfering of the bend of the diversion water retaining rib 72, and the center of the arc chamfering of the diversion water retaining rib is located at In the closed area B, that is to say, the diverter water retaining rib 72 is curved, and its protruding direction corresponds to the water inlet 42, so that the water flow flows in from the water inlet 42 and then disperses through the diverter water retaining rib 72 (see FIG. 9 ).

Embodiment three

As shown in Figure 13, the water retaining rib 7 described in this embodiment includes the arc-shaped water retaining rib 71 in the first embodiment above and the shunt water retaining rib 72 in the second embodiment, and is affected by the arc-shaped water retaining rib 71 Barrier, press down the water to flow to the balance ring, and finally flow down along the diversion water retaining rib 72 with the balance ring, forming a "lantern-like" water curtain effect, the soft water sprinkles on the clothes or the gland, and penetrates directly Spread evenly into the clothes or along the surface of the gland to avoid the phenomenon of splashing water; the combination of the two different water retaining ribs makes the shape of the spray water more beautiful and the spray area larger (see Figure 10).

Embodiment Four

As shown in Fig. 14, the diversion water retaining rib 72 described in this embodiment includes the first diversion water retaining rib 721, which is a figure-eight structure with a closed top, and the closed end of the top faces the direction of the water inlet 42, which is an arc segment. Closed, the end is located on the edge of the spray outlet on the opposite side of the water inlet, that is, the reinforcing rib 9, and also includes the second diversion water retaining rib 722, which is the structure of the diversion water retaining rib 72 in the second embodiment, the second The diversion water retaining rib 722 is located inside the first diversion water retaining rib 721 , and the ends of the two diversion water retaining ribs overlap on the reinforcing convex rib 9 .

Embodiment five

This embodiment specifically discloses the parameter range for forming the optimal spray water flow, which is formed by the following conditions. The rated flow rate of the drainage pump is: under the rated voltage of 220V, when the head is 1.0m, the flow rate is not less than 20L/min, When the head is 1.2m, the rated flow rate is not less than 17L/min; the total length of the circulation pipe 5 is L, L=820mm, the length L1 of the second pipeline 52 is 0.1<L1/L<0.5; the inner diameter D1 of the water inlet 42 is 20mm<D1 <28mm; the inner diameter of the second pipeline 52 D=D1+K, K is the thickness of the water inlet 42 pipeline; the inner diameter d of the first pipeline 51 is 1<D/d<1.8; the water flow of the circulation pipe 5 into the water inlet 42 The direction-changing angle θ is 100°<θ<108°, which is the bending angle of the bending head 53 of the circulation pipe in this embodiment; the distance L0 between the lower surface of the spray outlet 41 and the upper surface of the balance ring 6 is 4mm <L0<12mm.

As shown in Figure 7, the horizontal axis of the coordinate axis is a parameter that simultaneously represents the inner diameter D1 of the water inlet 42, the distance L0 between the lower surface of the spray outlet 41 and the upper surface of the balance ring 6, and the length L1 of the second pipeline 52; the vertical axis A parameter representing the diversion angle θ of the water flow that the circulation pipe 5 leads into the water inlet 42 . Ti=(D1, θ, L0, L1) is the parameter for forming the preferred spray water flow in this embodiment, and the parameter range for forming the preferred spray water flow of the present invention is the feasible rectangular range shown in the figure, and i is the range within this range each coordinate point.

Embodiment six

In this embodiment, on the basis of Embodiment 5, as shown in Figure 7, the parameters for forming the preferred spraying water flow are within the rectangular feasible range shown in the figure, Ta=(28, 108°, 12, 400), Tb=( 20, 100°, 4, 80), Tc=(22, 107°, 6, 150), Td=(24, 105°, 8.8, 300), Te=(23, 102°, 7, 200), Tf =(27, 104°, 10, 350) the corresponding parameters form a more preferable spray water flow parameter, further confirm that K is 4.5mm, D/d=1.62, L1/L=0.36, and the inner diameter of the second pipeline 52 can be known D, L, d and other parameters.

Or, further, within the scope of the rectangular feasible area shown in the figure, the most optimal sampling is carried out and verified in practice. The ideal internal circulation effect can be achieved by taking point d in the figure (see Figure 10), and the internal circulation spray water flow Effect The optimal solution of linear programming is Td=(24, 105°, 8.8, 300).

The implementation in the above-mentioned examples is only a description of the preferred embodiments of the present invention, and is not intended to limit the concept and scope of the present invention. Various changes and improvements made belong to the protection scope of the present invention.

Claims (9)

1. a kind of have the washing machine for spraying outer bung, including interior bucket, outer barrel and interior circulated sprinkling system, it is provided with above outer barrel outer Bung, it is characterised in that：Described interior circulated sprinkling system is mainly made up of spraying component, circulation pipe and circulating pump,

Spraying component, including the spray delivery port being made up of outer bung and inclination pass through spray located at the water inlet of outer bung periphery Drench delivery port and underlying interior bucket balance ring upper surface coordinates spray water outlet；

Circulation pipe, including the first pipeline that internal diameter is d and the second pipeline that internal diameter is D, 1 ＜ D/d ＜ 1.8, the first pipeline is with following Ring pump drainage mouth connects, and the second pipeline connects with spraying component water inlet, coordinates water inlet inclination angle by circulating bore change The spray water flow of degree control spraying component.

A kind of 2. washing machine with the outer bung of spray according to claim 1, it is characterised in that：Described circulation pipe with One end of spraying component water inlet connection is provided with bending head, and the current deflecting angle, θ for meeting to be passed through water inlet by circulation pipe is 100 ° of 108 ° of ＜ θ ＜.

A kind of 3. washing machine with the outer bung of spray according to claim 1, it is characterised in that：Second pipeline Length L1 meets 0.1 ＜ L1/L ＜ 0.5 with circulation pipe total length L.

A kind of 4. washing machine with the outer bung of spray according to claim 1, it is characterised in that：Described water inlet with Horizontal slanted angle α is 10 ° of 18 ° of ＜ α ＜.

A kind of 5. washing machine with the outer bung of spray according to claim 1, it is characterised in that：Spray delivery port following table The distance between face and the balance ring upper surface above interior bucket L0 are 4mm ＜ L0 ＜ 12mm.

A kind of 6. washing machine with the outer bung of spray according to claim 5, it is characterised in that：Described spray water outlet The outer ring of the outer bung of opening's edge is included close to the horizontal part of water inlet and the rake of inner side successively to inner ring direction, horizontal part and inclines The angle β of inclined portion is 150 ° of 180 ° of ＜ β ＜.

A kind of 7. washing machine with the outer bung of spray according to claim 1, it is characterised in that：Described spray water outlet Mouth lower surface is provided with least one set of bending water retaining ribs for changing streamflow regime, and side block reinforcement is provided with along water (flow) direction both sides.

A kind of 8. washing machine with the outer bung of spray according to claim 7, it is characterised in that：Described water retaining ribs bag An arc-shaped water retaining ribs are included, the center of circle is located at water inlet side, and the both ends extension of arc-shaped water retaining ribs is connected with both sides side bumper muscle.

A kind of 9. washing machine with the outer bung of spray according to claim 7 or 8, it is characterised in that：Described dash Muscle includes the shunting water retaining ribs of a multistage bending, two-end part on the spray delivery port edge with water inlet opposite side, The spray delivery port edge mate shunted between water retaining ribs and its both ends forms closed area, the shunting water retaining ribs bending place circular arc Chamfering, the center of circle of shunting water retaining ribs circular arc chamfering are located in closed area.