CN202717981U - Novel washing machine sleeve device - Google Patents

Abstract

The utility model discloses a novel sleeve device of a washing machine, which comprises a dehydration bucket with a dehydration hole and a water storage bucket. The dehydration hole is in the form of a nozzle that can generate a self-vibrating cavitation jet when draining water. The liquid inlet aperture of the nozzle should be significantly larger than the aperture of the liquid outlet, so that the laundry water flowing through the nozzle forms a cavitation jet at the liquid outlet; the inner wall of the bucket It is modified to have a surface shape with multiple jet reflection arcs, so that the cavitation jet sprayed from the self-vibrating cavitation jet nozzle of the dehydration bucket can act on the inner wall arc of the bucket; it also includes a hole belt, which is installed on the dehydration bucket 4 on the inner wall, so that the hole belt can be attached to the surface where the dehydration hole is located on the inner wall side and can slide up and down along the surface where the dehydration hole is located. Adopting this technical scheme can prevent the accumulation of dirt between the sets of washing machine tubs, remove the dirt between the sets of washing machine tubs, prevent the dirty liquid during laundry from polluting the inner and outer tub walls of the washing machine, and has the function of saving water; and the structure is simple, the cost is low, and the Carbon friendly.

Description

A new type of washing machine sleeve device

technical field

The utility model relates to the technical field of washing machines, in particular to a novel washing machine sleeve device.

Background technique

The pulsator-type washing machine is also known as a fully automatic washing machine. Because the inner and outer barrels are concentrically set together, it is also called a washing machine. Ordinary washing machines with perforated inner tubs have water in both inner and outer tubs, so they consume about 30% more water than non-porous inner-tub washing machines, but the dehydration rate of perforated inner-tub washing machines is better than that of non-porous inner-tub washing machines. Because both have their own advantages and disadvantages, both types of washing machines currently have a certain share in the market.

In the sleeve washing machine, after using the washing machine with a perforated inner drum for a long time, scale from tap water, free matter from washing powder, cellulose from clothing, organic matter from the human body, and dust and bacteria brought in by clothing are easy to accumulate in the sleeve. Accumulate on the inner wall, and the washing water flows back and forth between the tubs, causing serious secondary pollution to the clothes. Relevant authoritative health agencies have found that the rate of bacteria exceeding the standard in household washing machines with drums is as high as 81.3%.

Chinese patent ZL200820062676.3 discloses a "washing machine self-cleaning and sterilizing device", which sprays tap water to the outer wall of the inner tub of the washing machine to rinse the residual residue on the outer wall of the inner tub when the washing machine enters the clothes dehydration process through the dense small holes on the channel pipe located inside the outer tub of the washing machine. of dirt. However, although the above scheme can be used to clean the outer wall of the polluted washing machine inner barrel, it cannot clean the dirt on the inner wall of the outer barrel well, and this method must be used when there are clothes left in the washing machine, so it is inevitable that the inner and outer barrels will be separated. The dirt from the laundry is brought into the freshly washed clothes, causing secondary pollution.

Chinese patent ZL201010100155.4 discloses a "dirty self-cleaning device between washing machine barrels", which arranges water flow pipes with holes on the inner and outer barrels of the washing machine, so that the pressure water in the pipes is sprayed outward to form a water curtain to clean the inner wall of the barrel; At the same time, by presetting the bucket cleaning program in the computer program, the decontamination can be completed during the non-laundry time, so as to avoid secondary pollution to the clothes during cleaning.

However, the inventors have found in the course of their research that there are several disadvantages in adopting the above scheme: first, the water flow pipeline used for cleaning will foul during long-term use, especially the outer surface of the water flow pipeline due to long-term immersion In the washing water, it is easier to scale like the inner wall of the sleeve; second, the dirt formed by the long-term deposition on the inner wall of the sleeve is firmly bonded on the wall, and it is difficult to guarantee the cleaning effect of the water curtain sprayed by the water flow pipe; the second is 3. The design of the distance between the inner and outer tubs of the washing machine is designed to prevent shaking and collision during laundry, and the use of additional water flow pipes and power devices. The defective that washing machine wastes water is more outstanding; The 4th, introducing extra device has also improved design complexity and whole machine cost.

In view of this, the inventor of the present invention has conducted long-term research on the defects in the above-mentioned technical field in combination with his years of experience in the field of mechanical equipment research, and this case has arisen.

Utility model content

The purpose of this utility model is to provide a new type of washing machine sleeve device, which can prevent the accumulation of dirt between the sleeves of the washing machine and remove the dirt between the sleeves of the washing machine. Function.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A novel sleeve device for a washing machine comprises a dehydration bucket with a dehydration hole and a water storage bucket. The dehydration hole is in the form of a nozzle that can generate a self-vibrating cavitation jet when draining water, and the liquid inlet aperture of the nozzle should be significantly larger than the aperture at the liquid outlet, so that the laundry water flowing through the nozzle forms a cavitation jet at the liquid outlet; The position corresponding to the nozzle on the inner wall of the bucket is transformed into a surface shape with a jet reflection arc surface, so that the cavitation jet sprayed from the self-vibrating cavitation jet nozzle of the dehydration bucket acts on the arc surface of the inner wall of the bucket; it also includes holes The belt is installed on the inner wall of the dehydration barrel, so that the hole belt can be attached to the surface where the dehydration hole is located on the inner wall side and can slide up and down along the surface where the dehydration hole is located; The holes are equal or slightly larger, and the interval between the water-saving holes should be greater than the diameter of the water-saving holes to ensure that the interval can cover the dehydration holes on the inner wall of the dehydration bucket; Swipe up and down relative to each other.

Further, the self-resonating cavitation jet nozzle adopts an organ pipe resonant cavity or a Helmholtz resonant cavity. According to the transient flow theory and the principle of hydroacoustics, when the stable fluid flows through the outlet constriction section of the nozzle resonant cavity, a self-excited pressure excitation is generated, and this pressure excitation is fed back to the resonant cavity to form a feedback pressure oscillation. Appropriately control the size of the resonant cavity and the Mach number and Strouhal number of the fluid, so that the frequency of the feedback pressure oscillation matches the natural frequency of the resonant cavity, thereby forming acoustic resonance in the resonant cavity, making the jet flow at the nozzle outlet into a discontinuous vortex circulation, Thereby the cavitation effect of the jet is strengthened, and then it is more beneficial to utilize the cavitation jet to realize the cleaning of the dirt between the sleeves.

Further, the hole belt is installed on the inner wall of the dehydration barrel, so that the hole belt can be attached to the surface where the dehydration hole is located and can slide up and down along the surface where the dehydration hole is located. There are two parallel key grooves, through which the hole belt fits and can slide up and down on the surface where the dehydration hole is located along the two key grooves. Therefore, the sliding connection of the hole belt is realized in a manner of simple structure, low cost and convenient use.

Further, it also includes a balance ring that can drive the hole belt to slide relatively up and down in the direction of each row of dehydration holes in the dehydration cylinder and a cover plate with a ring bracket;

The balance ring is fixedly installed on the top of the dehydration cylinder, so that the inner surface of the balance ring is flush with the inner wall of the dehydration bucket. The inner surface of the balance ring is close to the top position and there is an arc-shaped protrusion in the direction of each row of dehydration holes. Its vertical height is equal; the position of each hole belt close to the top is on the inner wall side of the dehydration cylinder, and there is an arc-shaped protrusion. The top of each hole belt is fixedly connected with a hole belt ring, and the top of the balance ring passes through multiple springs and hole belts. The bottom layer of the ring is connected so that when the spring is stretched and the protrusion of the hole belt is stuck on the protrusion of the balance ring, the water-saving holes of the hole belt cover the dehydration hole of the dehydration bucket at intervals so that the dehydration hole is in a closed state. When the spring returns 1. When the hole belt protrusion is stuck under the balance ring protrusion, the center of the hole belt water-saving hole and the dehydration hole of the dehydration barrel coincide to make the dehydration hole open;

A ring bracket corresponding to the balance ring is installed under the cover plate when the cover plate is closed, and more than 2 solenoids with iron cores corresponding to the springs are symmetrically installed on the ring bracket, and the top layer of the hole belt ring corresponds to at least the band iron The position of the core solenoid is the magnetizer. When the solenoid is energized, it can attract the magnetizer on the top layer of the hole belt ring and drive the hole belt to move up to the hole belt protrusion and get stuck on the balance ring protrusion. A proportional electromagnet with a push rod is installed in the middle of every two solenoids with iron cores on the ring bracket. When the power is turned on, the push rod can move down to push down the hole belt ring and drive the hole belt to move down to the hole belt. The protrusion is stuck under the balance ring protrusion. Therefore, the connection of the hole belt to slide to open or close the dehydration hole is realized in a manner of simple structure, low cost and convenient use.

Further, the plurality of springs that connect the balance ring to the ring of the hole belt is a spring in the direction of each column of dehydration holes; the hole belt is a hard plastic belt with holes, and the top layer of the hole belt ring is a magnetic conductor, or The position corresponding to the top layer of the ring with iron core is the magnetizer, the position corresponding to the proportional electromagnet with the push rod is the magnet spacer, and the bottom layer of the ring with the hole is plastic. Thereby, on the one hand, when the hole belt ring is attracted by the electromagnetic force to drive the spring to stretch, the displacement of each hole belt connected to the hole belt ring is more accurate; on the other hand, when the hole belt ring is pushed down by the push rod At this time, the restoring force of the spring is large enough so that the thrust requirement of the electromagnetic push rod is not so high and the restoring is more accurate. At the same time, the combination of the above-mentioned materials realizes the effect of moving or pushing more economically and effectively, thereby making the sliding of the hole belt more accurate and reliable, and furthermore, the water-saving effect is better.

Further, the center of left and right symmetry of each arc-shaped protrusion of the balance ring is on the same line as the line connecting the center of each column of dewatering holes, the intersection point of the axis line of each spring and the top of the balance ring, the arc-shaped protrusion on the side of the spring The intersection point of the left-right symmetrical axis and the top of the balance ring and the center of the top surface of the balance ring are on the same straight line. Therefore, the moving or pushing effect can be realized more effectively, and the sliding of the hole belt can be more accurate and reliable, and the effect of water saving can be better.

The method and the device proposed by the utility model can realize the purposes of descaling, antiscaling and water saving by making minimum changes in the structure of the ordinary pulsator type fully automatic washing machine.

Adopting this technical scheme, compared with the prior art, the utility model achieves the following beneficial technical effects: first, the descaling effect is good, because the dehydration hole of the dehydration bucket is transformed into a self-vibrating cavitation jet nozzle, combined with the wave wheel of the washing machine The centrifugal force generated by the rotation produces cavitation jet, and the self-excited vibration chamber structure is used to strengthen the jet cavitation effect, which has a strong effect on removing dirt on the inner wall of the bucket; second, because dirt is easier to deposit in the groove, the inner wall of the bucket is designed The curved surface is often the place where the dirt is the most serious, which is more conducive to the cleaning ability of the cavitation jet; third, it has the function of anti-scaling. The design of the hole belt in this technical solution makes the inner wall of the sleeve no washing water when washing. Soaking can effectively prevent dirt from accumulating; fourth, it has both water-saving and high dehydration effects. The design of the hole belt in this technical solution can make the washing machine have both the water-saving performance of a washing machine with a non-porous inner tub and the high dehydration of a washing machine with a porous inner tub. Fifth, the transformation cost is low. The barrel set proposed by this technical scheme has less changes in the structure of the existing ordinary pulsator-type fully automatic washing machine, and can be made into an integrated type during manufacture without introducing additional device; sixth, the above-mentioned scheme is simple in structure, low in cost, low-carbon and environment-friendly.

In order to further explain the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a structural schematic diagram of a pulsator type fully automatic washing machine;

Fig. 2 is the structural representation of the wall of the dewatering bucket with self-vibrating cavitation jet nozzle;

Fig. 3 is a structural schematic diagram of the inner wall of the bucket with a jet reflecting arc surface;

Fig. 4 is the structural representation of band water-saving holes;

Fig. 5 is the structural representation that balance ring is connected with the hole belt ring that is fixed with hole belt by spring;

Fig. 6 is a top view of a structure at the top of the ring with holes;

Fig. 7 is a bottom view of a structure of the ring bracket under the cover plate.

Explanation of labels: drain pipe 1, overflow pipe 2, boom 3, dehydration bucket 4, water bucket 5, balance ring 6, balance ring protrusion 61, cover plate 7, safety switch 8, control panel 9, water level controller 10. Water inlet solenoid valve 11, water inlet connector 12, pressure hose 13, air storage chamber 14, bracket 15, motor 16, clutch 17, wave wheel 18, dehydration shaft 19, drain solenoid valve 20, flange plate 21, Dehydration hole 22, hole belt 23, hole belt water-saving hole 231, hole belt protrusion 232, spring 24, hole belt ring 25, magnet guide 251, magnet spacer 252, self-vibrating cavitation jet nozzle 220, inner wall arc of the bucket Face 50, ring support 70, band iron core solenoid 71, proportional electromagnet 72 with push rod.

Detailed ways

Below in conjunction with accompanying drawing, the implementation of the present utility model is described in further detail.

As shown in Figure 1, a novel washing machine sleeve device includes a dehydration tub 4 and a water tub 5 with dehydration holes. The above-mentioned components belong to the prior art in this field, and will not be repeated here.

As shown in Figure 2 and Figure 3, the dehydration hole is in the form of a nozzle that can generate a self-vibrating cavitation jet when draining water. A cavitation jet is formed at the outlet; the position of the inner wall of the water tank 5 corresponding to the nozzle is transformed into a surface shape with a jet reflection arc surface, which can make the cavitation jet sprayed from the self-vibrating cavitation jet nozzle 220 of the dehydration bucket 4 act On the inner wall arc 50 of the water tub 5 . In this embodiment, the self-resonating cavitation jet nozzle adopts an organ pipe resonant cavity or a Helmholtz resonant cavity. Because, according to the transient flow theory and the principle of hydroacoustics, when the steady fluid flows through the outlet constriction section of the nozzle resonant cavity, a self-excited pressure excitation is generated, and this pressure excitation is fed back to the feedback pressure oscillation formed by the resonant cavity. Appropriately control the size of the resonant cavity and the Mach number and Strouhal number of the fluid, so that the frequency of the feedback pressure oscillation matches the natural frequency of the resonant cavity, thereby forming acoustic resonance in the resonant cavity, making the jet flow at the nozzle outlet into a discontinuous vortex circulation, Thereby the cavitation effect of the jet is strengthened, and then it is more beneficial to utilize the cavitation jet to realize the cleaning of the dirt between the sleeves.

As shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 7, it also includes a hole belt, which is installed on the inner wall of the dehydration bucket 4, so that the hole belt can be attached to the surface where the dehydration hole is located on the side of the inner wall and can be along the surface where the dehydration hole is located. Swipe up and down. Water-saving hole 231 is arranged on hole band 23, and the dewatering hole of aperture and dewatering barrel 4 inner wall side is equal or slightly larger, and the interval between water-saving holes will be greater than the diameter of water-saving hole, to guarantee that this interval can cover dewatering barrel 4 inner wall The dehydration holes on the side; the hole belt 23 and the dehydration barrel 4 can only slide relative to each other in the direction of each row of dehydration holes in the dehydration cylinder.

In this embodiment, the above-mentioned perforated belt is installed on the inner wall of the dehydration barrel 4, so that the perforated belt can be attached to the surface where the dehydration hole is located and can slide up and down along the surface where the dehydration hole is located. Two parallel key grooves are installed on the left and right sides, and the hole belt is fitted through the key grooves and can slide up and down on the surface where the dehydration hole is located along the two key grooves. The two key grooves are protrusions similar to the track, and the hole belt can slide up and down along the track. Of course, this sliding structure can also be other known mechanical structures that can realize the kinematic relationship that the perforated belt can be attached to the surface where the dehydration hole is located and can slide up and down along the surface where the dehydration hole is located. Therefore, the sliding connection of the hole belt is realized in a manner of simple structure, low cost and convenient use.

In this embodiment, the specific device that can drive the perforated belt to slide relatively up and down in the direction of each row of dehydrating holes in the dehydration cylinder refers to the balance ring 6 and the cover plate 7 with the ring bracket (wherein the cover plate 7 is the existing The cover plate of washing machine is arranged, belongs to the prior art of this field). Its specific structure and coordination are as follows:

The balance ring 6 is fixedly installed on the top of the dehydration cylinder 4, so that the inner surface of the balance ring 6 is flush with the inner wall of the dehydration barrel 4, and the inner surface of the balance ring 6 is close to the top position and in the direction of each row of dehydration holes. There is an arc-shaped protrusion 61 whose vertical height is equal; the position of each hole belt close to the top is on the inner wall side of the dehydration cylinder, and an arc-shaped protrusion 232 is provided. The top of each hole belt is fixedly connected with a hole belt ring, and the balance ring 6 The top is connected to the bottom layer of the orifice belt ring through a plurality of springs 24, so that when the spring stretches and the hole belt protrusion 232 is stuck on the balance ring protrusion 61, the water-saving holes of the orifice belt 23 cover the dehydration bucket 4 at intervals The dehydration hole makes the dehydration hole in a closed state. When the spring returns and the hole belt protrusion 232 is stuck under the balance ring protrusion 61, the circle centers of the hole belt water-saving hole and the dehydration hole of the dehydration barrel 4 coincide to make the dehydration hole open. state. In this embodiment, in order to better realize the effect of this technical solution, the left and right symmetrical axis centers of each arc-shaped protrusion of the balance ring and the center line of each row of dewatering holes are on the same straight line, and the axis line of each spring The intersection point with the top of the balance ring 6, the intersection of the left and right symmetrical axis of the arc-shaped protrusion on the spring side and the top of the balance ring 6, and the center of the top surface of the balance ring 6 are on the same straight line. Therefore, the moving or pushing effect can be realized more effectively, and the sliding of the hole belt can be more accurate and reliable, and the effect of water saving can be better.

A ring bracket corresponding to the balance ring 6 is installed below the cover plate when the cover plate is closed, and more than two solenoids with iron cores 71 corresponding to the springs are symmetrically installed on the ring bracket (the symmetrical installation here can be Central symmetry, or left-right symmetry, the former is better; the corresponding relationship here depends on the size of the required electromagnetic attraction, it can be that each spring corresponds to one, or it can be 2 or more of the drawings, that is, Not one-to-one correspondence), the top layer of the orifice ring at least corresponds to the position of the solenoid with iron core as a magnetic conductor, and the solenoid can attract the magnetizer on the top layer of the orifice ring and drive the orifice 23 to move upward when energized To the hole belt protrusion, it is stuck on the balance ring 6 protrusion, and a proportional electromagnet 72 with a push rod is installed at the middle position of every two solenoids 71 with iron cores on the ring support (proportional electromagnet 72 with a push rod The iron 72 also plays the role of pushing down the balance ring, which can be two or more, as long as the pushing force is enough), when the power is turned on, the push rod can move down to push down the hole belt ring and drive the hole belt to move down Catch under the protrusion of the balance ring 6 until the holes are raised. In this embodiment, the top layer of the orifice ring is connected to form a ring with a magnetic spacer 252 and a magnetic conductor 251 alternately. To correspond. Therefore, the connection of the hole belt to slide to open or close the dehydration hole is realized in a manner of simple structure, low cost and convenient use.

In a specific implementation, there is no specific limitation on the number of the plurality of springs connecting the balance ring and the hole zone ring. In this implementation, preferably, there is one spring in the direction of each column of dehydration holes. Thereby, on the one hand, when the hole belt ring is attracted by the electromagnetic force to drive the spring to stretch, the displacement of each hole belt connected to the hole belt ring is more accurate; on the other hand, when the hole belt ring is pushed down by the push rod At this time, the restoring force of the spring is large enough so that the thrust requirement of the electromagnetic push rod is not so high and the restoring is more accurate.

In addition, in order to implement the technical solution more smoothly, the hole belt is preferably a hard material, which is a hard plastic belt with holes in this embodiment, and the top layer of the hole ring is a magnetizer, or the top layer of the hole ring and the band iron The position corresponding to the core solenoid is the magnet guide, the position corresponding to the proportional electromagnet with the push rod is the spacer magnet, and the bottom layer of the ring with the hole is plastic. Therefore, the combination of the above materials can more economically and effectively realize the effect of moving or pushing, thereby making the sliding of the perforated belt more accurate and reliable, and furthermore, the effect of saving water is better.

In this technical solution, the working principle of self-vibrating cavitation jet descaling is as follows:

First of all, the laundry water in the dehydration bucket 4 rotates under the action of the rotation of the pulsator, and the resulting centrifugal force acts on the inner wall of the dehydration bucket 4, so that the liquid inlet of the nozzle near the inner wall of the dehydration bucket 4 is larger than the liquid outlet. There is a high pressure difference, and at the same time, the liquid inlet aperture of the nozzle should be significantly larger than the aperture of the liquid outlet, so that the laundry water flowing through the nozzle forms a cavitation jet at the liquid outlet, and the cavitation bubbles in the jet grow under the action of pressure changes , when the jet flow containing these cavities hits the wall of the sleeve, the cavitation is broken on the surface of the sleeve wall and nearby, because the energy generated during the rupture of the cavitation is highly concentrated and limited to many very small areas, so that the Many local areas on the surface of the barrel wall generate extremely high impact pressure and stress concentration, so that the dirt on the surface of the barrel wall is quickly destroyed, so as to achieve the purpose of strong cleaning. The local pressure amplification effect of cavitation jet makes the cleaning effect much better than that of Non-cavitating jet (water curtain cleaning used in Chinese patent ZL201010100155.4 belongs to non-cavitating jet).

Secondly, the generation of cavitation jet requires sufficient pressure difference at both ends of the nozzle. The greater the pressure difference, the faster the jet velocity, and the better the cavitation effect and cleaning effect. The pressure difference formed by the centrifugal pressure of the laundry water in the dehydration bucket 4 is relatively small. In order to improve the cleaning effect of the cavitation jet under low pressure difference, the nozzle adopts a self-vibrating cavitation jet nozzle 220 . According to the transient flow theory and the principle of hydroacoustics, when the stable fluid flows through the outlet constriction section of the nozzle resonant cavity, a self-excited pressure excitation is generated, and this pressure excitation is fed back to the resonant cavity to form a feedback pressure oscillation. By optimizing the design of the control cavity size and the Mach number and Strouhal number of the fluid (the specific implementation of this control can be carried out through the preset computer program in the washing machine control panel), the frequency of the feedback pressure oscillation is matched with the natural frequency of the cavity , so that acoustic resonance is formed in the resonant cavity, so that the jet flow at the nozzle outlet becomes intermittent vortex circulation, thereby strengthening the cavitation effect of the jet flow.

Finally, the inner wall of the tub 5 is modified to have a surface shape with multiple jet-reflecting curved surfaces. The cavitation jet sprayed from the self-vibrating cavitation jet nozzle 220 of the dehydration bucket 4 acts on the inner wall arc surface 50 of the water storage bucket 5, and part of the cavitation bubbles in the jet grow up to a critical point under the action of pressure change. , the cavitation breaks near the center of the arc surface of the inner wall of the water tank 5, and a very high impact pressure and stress concentration are generated in this area, so that the dirt on the surface is quickly destroyed. In addition, the cavitation that has not yet grown to the critical point and the jet reflected by the arc surface move towards the outer wall of the dehydration bucket 4, grow up to the critical point near the outer wall of the dehydration bucket 4, and rupture and impact and clean the outer wall of the dehydration bucket 4. Dirt, so as to achieve the cleaning effect of cleaning the inner wall of the barrel. The size, radian and position of the curved surface can be optimized during design to achieve the best cleaning effect. In addition, since the dirt is more likely to deposit in the groove, the designed curved surface is often the most serious dirt, which is more conducive to the cleaning ability of the cavitation jet.

The descaling function of the utility model can be carried out regularly through a preset computer program. During descaling, the dehydration hole of the dehydration bucket 4 is closed, and the water inlet solenoid valve 11 is opened to add water to the full water level. Make the pulsator rotate at a high speed, open the dehydration hole, open the drainage solenoid valve 20, and the self-vibrating cavitation jet nozzle 220 will generate a cavitation jet under the action of centrifugal pressure and start to clean the inner wall of the sleeve. At the same time, the washing machine will also generate cavitation jets to automatically descale during daily dehydration.

The specific implementation process is as follows:

Example 1 Cavitation jet descaling

The cavitation jet sprayed from the self-vibrating cavitation jet nozzle 220 of the dehydration bucket 4 acts on the inner wall arc surface 50 of the water storage bucket 5, and part of the cavitation bubbles in the jet grow up to a critical point under the action of pressure change. , the cavitation breaks near the center of the arc surface of the inner wall of the water tank 5, and a very high impact pressure and stress concentration are generated in this area, so that the dirt on the surface is quickly destroyed. In addition, the cavitation that has not yet grown to the critical point and the jet reflected by the arc surface move towards the outer wall of the dehydration bucket 4, grow up to the critical point near the outer wall of the dehydration bucket 4, and rupture and impact and clean the outer wall of the dehydration bucket 4. Dirt, so as to achieve the cleaning effect of cleaning the inner wall of the barrel.

In this technical solution, the working principle of the hole belt is as follows:

First of all, adopting the above-mentioned hole belt can ensure that the dehydration hole on the dehydration bucket 4 can be closed due to the coverage of the interval between the hole belt 23 water-saving holes when the washing machine is doing laundry, so that no washing water enters between the sleeves during laundry, so as to achieve Water-saving and anti-fouling effects. And for the hole belt 23 and the dehydration barrel 4, the hole belt 23 can only slide up and down relatively in the direction of each row of dehydration holes in the dehydration cylinder, and when washing, the rotating cylinder also acts on the hole belt with an outward centrifugal force, which further Guaranteed the interval between the 23 water-saving holes of the hole belt, and the sealing coverage of the dehydration hole on the inner wall of the dehydration passage.

Secondly, during dehydration, the perforated belt 23 slides in the direction of each row of dehydration holes relative to the dehydration barrel 4, so that the water-saving holes and the centers of the dehydration holes coincide to ensure normal dehydration. This design enables the washing machine to have both the water-saving performance of a washing machine with a non-porous inner tub and the high-efficiency dehydration function of a washing machine with a porous inner tub.

The specific implementation process is as follows:

Embodiment 2: The opening and closing of the dehydration hole by the hole zone

Scheduled descaling with preset computer programs

When the cleaning conditions are met, take out the clothes in the washing machine and start the descaling program. Check the position of the hole belt 23, if the dehydration hole of the dehydration barrel 4 is in the open state, the solenoid 71 with iron core on the ring bracket 70 of the control cover plate 7 is energized, and the magnetic conductor 251 on the top layer of the hole belt ring is generated. , and then make the orifice belt 23 move vertically upward under the action of suction. Because there is an arc-shaped protruding structure on the end surface where the top of the hole belt 23 contacts with the top of the balance ring 6, after moving up for a certain distance, the hole belt moves upward to the hole belt protrusion and is stuck on the balance ring protrusion, and the iron belt The core solenoid 71 is powered off, and the hole belt 23 protrusions are stuck on the balance ring 6 protrusions. At this time, the water-saving holes of the hole belt 23 cover the dehydration holes of the dehydration barrel 4 at intervals, so that the dehydration barrel 4 The dehydration hole is closed. As for how to just reach this state, the relative distance that the vertical direction of the two protrusions needs to move can be determined in advance. During design, the vertical direction between the magnetic conductor 251 of the solenoid 71 with the iron core and the top layer of the ring with the hole is made. Distance=needed moving distance, as long as the solenoid 71 with iron core is energized, the magnetic conductor 251 on the top layer of the hole belt ring and the solenoid 71 with iron core are attracted, and the distance to drive the hole belt 23 to move vertically is determined. After that, it is just stuck on the arc-shaped protruding structure of the balance ring 6.

Open the water inlet solenoid valve 11 to feed water through program control until the full water level. The motor 16 drives the pulsator 18 to rotate at a high speed so that the water in the dehydration bucket is in a state of high-speed centrifugal motion. Open the drain solenoid valve 20, and simultaneously control the action of the proportional electromagnet 72 with a push rod on the ring bracket 70 of the cover plate 7, and withstand the magnet spacer 252 on the top layer of the hole band ring (the magnetizer and the magnet spacer are connected to form a ring, Match the size of the ring bracket 70) to push down, so that the hole belt 23 moves vertically downward under the action of the downward force. At the same time, when pushing down, there is also the restoring force of the spring itself, and the top protrusion of the hole belt 23 moves Get stuck under the protrusion on the balance ring 6 top. Now the water-saving hole of hole belt 23 coincides with the dehydration hole circle center of dehydration bucket 4, so that the dehydration hole of dehydration bucket 4 is in open state. The moving distance of the push rod is designed to be consistent with the vertical upward moving distance of the front to ensure that the spring is in a normal state after being pushed down. Even if it is slightly compressed or pulled up, its elastic force is not enough to overcome the clamping force.

The specific control of the above operations can be carried out through the program control in the control panel. As for how to compile the program and circuit design to control the above operations, it is easy for those skilled in the art to do so, and will not be repeated here.

The above are only specific embodiments of the present utility model, and are not limitations on the design of this case. All equivalent changes made according to the design key of this case all fall within the scope of protection of this case.

Claims (6)

1. novel washing machine sleeve arrangement, comprise dehydration barrel and steel ladle with dewatering hole, it is characterized in that: the form of nozzle that can produce self-resonating cavitating jet when described dewatering hole is draining, obvious aperture greater than liquid outlet is wanted in the aperture, liquid inlet of nozzle, makes the laundry water that flows through nozzle form cavitation jet at liquid outlet; The position of the inwall corresponding nozzle of described steel ladle is transformed into the surface configuration with jet reflection cambered surface, can make from the cavitation jet of the self-resonating cavitating jet nozzle ejection of dehydration barrel to act on the inwall cambered surface of steel ladle; Also comprise pore area, be installed on the inwall of dehydration barrel, pore area can and can be slided up and down along this surface, dewatering hole place with the applying of surface, inwall side dewatering hole place; Water saving holes is arranged on the pore area, and the dewatering hole of aperture and dehydration barrel inwall side equates or is slightly large that interval between the water saving holes is greater than the diameter of water saving holes, can cover the dewatering hole of dehydration barrel inwall side to guarantee this interval; Pore area and dehydration barrel only can be at the direction of the every row dewatering hole of dehydration tube relative slidings up and down.

2. a kind of novel washing machine sleeve arrangement as claimed in claim 1 is characterized in that: described self-resonating cavitating jet nozzle employing organ pipe oscillation cavity or Helmholtz (Helmholtz) resonator.

3. a kind of novel washing machine sleeve arrangement as claimed in claim 1, it is characterized in that: described pore area is installed on the inwall of dehydration barrel, pore area can and can be slided up and down along this surface, dewatering hole place with the applying of surface, dewatering hole place, refer in the left and right sides of the every row dewatering hole of inwall side two parallel keyways are installed, pore area is fitted by keyway and can be slided up and down on surface, dewatering hole place along this two keyway.

4. such as claim 1 or 2 or 3 described a kind of novel washing machine sleeve arrangements, it is characterized in that: also comprise can drive pore area the direction of the every row dewatering hole of dehydration tube up and down relative sliding the balance annulus and with the cover plate of circle ring rack;

The balance annulus is fixedly mounted on the dehydration tube top, and the medial surface of balance annulus and the inwall of dehydration barrel are flushed, and the medial surface of balance annulus is equipped with arcuation projection near tip position and on every row dewatering hole direction, and its vertical height equates; Each pore area is pasting dehydration tube inwall side near the position at top, be equipped with arcuation projection, each pore area top is fixedly connected with the poriferous zone annulus, the top of balance annulus links to each other with pore area annulus bottom by a plurality of springs, make when being stuck on the balance annulus projection on spring stretching, the pore area projection, the dewatering hole of interval covering dehydration barrel makes dewatering hole be in closure state between the water saving holes of pore area, when spring restores, be stuck in balance annulus projection lower time under the pore area projection, the center of circle of pore area water saving holes and dehydration barrel dewatering hole overlaps and makes dewatering hole be in open mode;

Circle ring rack corresponding with the balance annulus when cover plate closing is installed below the cover plate, be symmetrically installed with 2 the above ribbon core solenoids corresponding with spring on the circle ring rack, the solenoidal position of the corresponding at least ribbon core of pore area annulus top layer is magnetic conductor, this solenoid when energising can adhesive pore area annulus top layer magnetic conductor and drive pore area and be moved upward to the pore area projection and be stuck on the balance annulus projection, per two solenoidal centre positions of ribbon core are equipped with a proportion electro-magnet with push rod on the circle ring rack, push away the pore area annulus and drive pore area to be moved downward to and to be stuck under the pore area projection under the balance annulus projection under when energising, push rod can move down.

5. a kind of novel washing machine sleeve arrangement as claimed in claim 4 is characterized in that: described a plurality of springs that the balance annulus is linked to each other with the pore area annulus, on every row dewatering hole direction a spring being arranged; Pore area is hard plastic strip with holes, and pore area annulus top layer is magnetic conductor, perhaps the pore area annulus top layer position corresponding with the ribbon core solenoid be magnetic conductor, with the corresponding position of the proportion electro-magnet of push rod for every magnet, pore area annulus bottom is plastics.

6. a kind of novel washing machine sleeve arrangement as claimed in claim 5, it is characterized in that: the left-right symmetry axle center of described each arcuation projection of balance annulus and every row dewatering hole circle center line connecting are on same straight line, intersection point and the balance annulus end face center of circle at the intersection point at each spring axis line and balance annulus top, the arcuation of this spring side projection left-right symmetry axis and balance annulus top are on same straight line.

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