CN114250596A - Upper water drainage laundry equipment - Google Patents

Abstract

The invention belongs to the field of washing equipment, and particularly provides upper-drainage clothes washing equipment. The upper drainage clothes washing equipment is provided with a siphon component capable of discharging residual water at the bottom of an impeller cavity of a drainage pump, the siphon component comprises a water guide pipe and a siphon pipe, the water inlet end of the water guide pipe is arranged at the lowest position of the bottom of the impeller cavity of a pump shell, the water outlet end extends towards the water outlet pipe opening of the pump shell, the siphon pipe is arranged in a drainage pipeline of the upper drainage clothes washing equipment and is arranged in an inverted U-shaped mode, the water inlet end of the siphon pipe is communicated with the water outlet end of the water guide pipe through the water outlet pipe opening, the water outlet end extends towards an underground drainage outlet along the drainage pipeline, the water outlet end of the siphon pipe is lower than the water inlet end of the water guide pipe so that the siphon component is integrally formed into a siphon structure, the siphon component can be filled with water under the rotation action of the impeller in the drainage process, the water level in the impeller cavity is lower than the height of the water outlet pipe opening, and the accumulated water in the pump shell is sucked and discharged out according to the siphon principle, the drainage performance of the upper drainage laundry equipment is improved.

Description

Upper water drainage laundry equipment

Technical Field

The invention belongs to the field of washing equipment, and particularly provides upper-drainage clothes washing equipment.

Background

The drainage pump of present washing machine all is higher than the floor drain, can all following drainage in theory, installs an electromagnetic valve, opens direct drainage when needing. However, the direct drainage has two problems, namely that only the upper drainage pipeline of the washing machine can be arranged in a part of installation environment, and the drainage speed is slow and the washing cycle is prolonged during natural drainage. Most washing machines on the market are provided with an upper drainage pipeline, the upper drainage washing machine can be directly inserted into a floor to drain water, and can also be placed into a water tank at a high place to drain water, so that the adaptability is wide, and the drainage is fast. However, the upper drainage washing machine must be provided with a section of pipeline from bottom to top, so that drainage can not be realized in a natural drainage mode, only a drainage pump can be arranged, and the drainage pump has the disadvantages that: the drainage pump comprises a containing cavity arranged in the drainage pump and an impeller and other parts arranged in the containing cavity so as to provide power for the drainage pump and accelerate the drainage process of water, and a drainage port and a water inlet which are respectively communicated with a drainage pipeline are communicated with the pump cavity. Because the position of setting up of outlet and the bottom of holding the chamber have certain difference in height, consequently, after drainage later stage displacement flows back to holding the intracavity excessively at least, this part of water is difficult to continue to discharge by stirring of impeller again, also can not flow out naturally through the outlet, so can store up in the inside of drain pump, the residual water volume of the last washing machine of draining of different brands generally homoenergetic reaches 5, 600 ml, can breed a large amount of bacteriums after the long-term use and produce the peculiar smell, can prevent that the wash bucket from becoming mouldy occupation space through the mode of opening the door natural air-drying residual water, influence family member and remove, and the producer also is difficult to avoid the inside residual water that exists of drain pump after the drainage function of the experimental washing machine before dispatching from the factory, influence user's purchase experience.

Accordingly, there is a need in the art for a new upper drain washing apparatus that solves the above problems.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the problem that the residual water in the drain pump is difficult to discharge after the drain pipeline of the existing upper drain washing equipment returns water, the invention provides an upper drain washing equipment, which comprises an outer cylinder, a drain pipeline for communicating the outer cylinder with the outside, and a drain pump arranged on the drain pipeline, wherein the drain pump comprises a pump shell and an impeller, an impeller cavity capable of containing the impeller is arranged in the pump shell, a water outlet pipe orifice communicated with the impeller cavity is arranged on the pump shell, the upper drain washing equipment further comprises a siphon assembly, the siphon assembly comprises a water guide pipe arranged in the impeller cavity and a siphon pipe arranged in the drain pipeline, the water inlet end of the water guide pipe is arranged at the lowest position at the bottom of the impeller cavity, and the water outlet end of the water guide pipe is communicated with the water inlet end of the siphon pipe through the water outlet pipe orifice, the siphon is arranged in an inverted U-shaped mode, the siphon extends along the drainage direction of the drainage pipeline, the water outlet end of the siphon is communicated with the outside, and the water inlet end of the water guide pipe is higher than the water outlet end of the siphon.

In the above-described preferred embodiment of the upper drain laundry device, the water guide pipe is disposed below the impeller and extends in a direction opposite to a rotation direction of the impeller.

In a preferred technical scheme of the above-mentioned upper drainage laundry device, the water outlet end of the siphon pipe extends to the outside of the drainage pipeline.

In the above preferred technical solution of the upper drain laundry device, the water inlet end of the water conduit is provided with a filtering member.

In the above preferred technical solution of the upper drain laundry device, the filter member is a filter screen covering the water inlet end port of the water conduit.

In the preferable technical scheme of the upper drainage laundry device, a sinking groove is formed in the bottom of the impeller cavity, and the water guide pipe is clamped in the sinking groove.

In the above preferred technical scheme of the upper drainage laundry device, the sink includes a water guide groove section located below the impeller and an accommodating groove section communicated with the water guide groove section, the water guide pipe is clamped in the accommodating groove section, and the groove width of the water guide groove section is gradually reduced along the water guide direction.

In the above preferred technical scheme of the upper drainage laundry device, a plurality of latch teeth capable of being abutted to the outer wall of the water guide pipe are arranged on the groove wall of the accommodating groove section, and the latch teeth are obliquely arranged in a direction opposite to the water inlet direction of the water guide pipe.

In the preferable technical scheme of the upper drainage clothes washing equipment, the upper drainage clothes washing equipment further comprises a fixed pressing plate detachably connected to the inner wall of the impeller cavity, the fixed pressing plate comprises an arc-shaped plate protruding upwards and two connecting ends respectively connected with the two ends of the arc-shaped plate, the connecting ends are connected to the inner wall of the impeller cavity, and the water guide pipe is tightly abutted to the inner wall of the impeller cavity by the arc-shaped plate.

In the preferable technical scheme of the above-mentioned upper drainage laundry device, one side of the arc-shaped plate close to the water guide pipe is provided with pressing teeth, the pressing teeth extend obliquely in a reverse direction relative to the water inlet direction of the water guide pipe, and the arc-shaped plate is abutted to the water guide pipe through the pressing teeth.

As can be appreciated by those skilled in the art, the upper drain laundry device of the present invention is provided with a siphon assembly capable of discharging residual water at the bottom of the impeller chamber of the drain pump, the siphon assembly including a water introduction pipe and a siphon pipe communicating with each other. The water guide pipe is arranged in a pump shell of the drainage pump, the water inlet end of the water guide pipe is arranged at the lowest position of the bottom of an impeller cavity of the pump shell, and the water outlet end of the water guide pipe extends towards a water outlet pipe opening of the pump shell. The siphon is arranged in a drainage pipeline of the upper drainage laundry equipment and is arranged in an inverted U-shaped mode, the water inlet end of the siphon is communicated with the water outlet end of the water guide pipe through the water outlet pipe opening, the water outlet end extends to the underground drainage port along the drainage pipeline, and the water outlet end of the siphon is lower than the water inlet end of the water guide pipe. Through the arrangement, the water guide pipe and the siphon can be filled with water under the rotation action of the impeller in the drainage process, so that the accumulated water in the pump shell is sucked away and discharged based on the siphon principle when the water level in the impeller cavity is lower than the height of the water outlet pipe opening and the accumulated water in the pump shell is accumulated. Eliminate the inside residual water of drain pump, when avoiding drainage pipe to breed the bacterium and produce the peculiar smell, on the one hand, can utilize the high drainage characteristics of the drainage pipe of last drainage laundry equipment, come to continue to discharge the inside residual water of drain pump when the drain pump can't continue to make rivers go into drainage pipe through the siphon subassembly of establishing with the inside intercommunication of pump case, the organic combination of the arrangement mode of the drainage pipe of siphon subassembly with last drainage laundry equipment has been realized, the problem that drainage system easily deposited water after the drainage has been improved when having kept the flexibility that last drainage laundry equipment drainage arranged, the whole drainage performance of last drainage laundry equipment has been promoted, the inside sanitary environment of last drainage laundry equipment drainage pipe has been improved. On the other hand, through placing the siphon subassembly in drainage pipe and inside the pump case in, can avoid the siphon subassembly to take place to shift because of external force factors such as unexpected scraping when reducing the space of arranging of the drainage system of last drainage washing equipment, both arrange that the flexibility ratio is high and save space and the installation is reliable.

Preferably, the aqueduct is arranged below the impeller, and the extension direction of the aqueduct is parallel to the tangential direction of the impeller, so that water can enter the water inlet end of the aqueduct on the rotation path of the vortex more easily when the impeller stirs water flow and forms a rotating rapid vortex in the impeller cavity, the water filling speed of the siphon assembly is optimized, small part of water at the bottom of the impeller cavity can be discharged through the siphon assembly, and the initial water filling condition of the siphon effect can be reliably ensured.

Preferably, the water outlet end of the siphon pipe extends out of the drainage pipe, so that backflow water is prevented from reversely entering the siphon pipe when the drainage pipe returns water in the later stage of drainage, the water filling condition of the siphon assembly is further damaged, and the residual water drainage reliability of the siphon assembly is further guaranteed while the siphon assembly returns water.

Preferably, the water inlet end of the water guide pipe is provided with a filtering member so as to filter water entering the water guide pipe and avoid that the water guide pipe and/or the siphon pipe cannot discharge residual water due to blockage of impurities.

Preferably, the filter component is a filter screen covered at the water inlet end port of the water guide pipe, on one hand, the filter screen occupies small space and is easy to arrange, and enough rotating space is reserved for the impeller. On the other hand, the filter screen filtering effect is showing and the texture is frivolous, very easily disturbs the impurity on the dictyosome with the help of the vortex effect when the impeller stirs rivers, blocks up the little clean cycle length of possibility. In addition, through controlling the impeller to rotate for a plurality of weeks in a directional mode, the filter screen can be automatically cleaned through reverse vortex, and the use is convenient without daily cleaning and maintenance.

Preferably, the bottom of the impeller cavity is provided with a sink, and the water guide pipe is clamped in the sink, so that the water inlet end of the water guide pipe is always arranged at the lowest position of the bottom of the impeller cavity, and the reliability of residual water discharge of the drainage pump is guaranteed.

Preferably, the heavy groove is including the guiding gutter section that is located the impeller below and the holding groove section that communicates with the guiding gutter section, the guiding pipe card is arranged in and is held the groove section, the groove width of guiding gutter section reduces along the water guide direction gradually, so that guide rivers direction when in to the guiding pipe better, and the reducing effect through the guiding gutter section increases the rivers velocity of flow that gets into in the guiding pipe, make siphon subassembly inside can be filled with by water more soon and then realize earlier stage drainage and later stage siphon and arrange the purpose of residual water.

Preferably, the groove wall of the accommodating groove section is provided with a plurality of clamping teeth which can be abutted to the outer wall of the water guide pipe, and the clamping teeth are obliquely arranged along the reverse water guide direction, so that the water guide pipe is limited to move along the water drainage direction when being impacted by continuously discharged water flow, and the installation reliability of the water guide pipe is further improved.

Alternatively, the upper-drainage clothes washing equipment further comprises a fixed pressing plate detachably connected to the inner wall of the impeller cavity, the fixed pressing plate comprises an arc-shaped plate protruding upwards and two connecting ends respectively connected with two ends of the arc-shaped plate, the connecting ends are connected to the inner wall of the impeller cavity, and the arc-shaped plate tightly supports the water guide pipe to the inner wall of the impeller cavity so as to prevent the water guide pipe, particularly the water inlet end of the water guide pipe, from shifting.

Preferably, the side of the arc-shaped plate close to the water guide pipe is provided with a pressing tooth, the pressing tooth extends along the reverse inclination direction of the water inlet direction of the water guide pipe, the arc-shaped plate is abutted to the water guide pipe through the pressing tooth, so that the water guide pipe moves when the water guide pipe is impacted by drainage water flow or accidentally pulled, and the installation reliability of the water guide pipe is further ensured.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. The attached drawings are as follows:

FIG. 1 is an overall assembly view of a drain system of an upper drain laundry device of the present invention;

FIG. 2 is a schematic side view of the water guide duct of the upper drain laundry device of the present invention;

FIG. 3 is a schematic view showing the top-down installation of the water guide duct of the upper drain laundry device of the present invention.

In the drawings: 1. draining pump; 11. a pump housing; 111. an impeller cavity; 112. a filter chamber; 113. a water outlet pipe orifice; 114. a water inlet pipe orifice; 12. an impeller; 13. a motor; 14. a partition plate; 15. a filter; 16. sinking a groove; 2. a water discharge pipeline; 3. a siphon assembly; 31. a water conduit; 32. a siphon tube; 4. and (4) an underground water outlet.

Detailed Description

It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the upper drain washing apparatus of the present invention is described in connection with an upper drain washing machine, this is not limiting, and the upper drain washing apparatus may be an upper drain washing dryer, for example.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 3, the upper drain laundry device of the present invention includes a housing, an outer tub provided in the housing, an inner tub rotatably provided in the outer tub, and a drain duct 2, and a drain pump 1 provided on the drain duct 2. The inner cylinder can contain clothes, and the cylinder body of the outer cylinder is arranged in a closed mode so as to contain washing water. The outer cylinder is provided with a drain hole, one end of a drain pipeline 2 is communicated with the inside of the outer cylinder through the drain hole, and the other end is communicated with an underground drain outlet 4 at home of a user, so that the washing water in the outer cylinder can be drained. The drain pump 1 is provided on the drain line 2 to improve drainage efficiency. The drain pump 1 specifically includes a pump casing 11, and an impeller 12 and a filter 15 provided in the pump casing 11. The inner cavity of the pump housing 11 is vertically provided with a partition 14 so as to divide the pump cavity into two chambers, namely an impeller cavity 111 and a filter cavity 112, the impeller 12 is accommodated in the impeller cavity 111, and a motor shaft of the driving motor 13 penetrates through the pump housing 11 and is connected to a power input end of the impeller 12 to drive the impeller 12 to rotate. The filter 15 is disposed in the filter chamber 112, the water inlet side of the filter is located in the filter chamber 112, and the water outlet side is connected to the impeller chamber 111 through an opening in the partition 14, so as to filter the water entering the impeller chamber 111. The pump housing 11 is provided with a water outlet nozzle 113 communicating with the impeller chamber 111 and a water inlet nozzle 114 communicating with the filter chamber 112 so that water in the drain pipe 2 flows through the drain pump 1 through a path of the water inlet nozzle 114-the filter chamber 112-the impeller chamber 111-the water outlet nozzle 113. The upper-drainage clothes washing equipment further comprises a siphon assembly 3, wherein the siphon assembly 3 comprises a water guide pipe 31 arranged in the impeller cavity 111 and a siphon pipe 32 arranged in the drainage pipeline 2, the water inlet end of the water guide pipe 31 is arranged at the lowest position of the bottom of the impeller cavity 111, and the water outlet end of the water guide pipe 31 extends into the water outlet pipe opening 113 and is communicated with the water inlet end of the siphon pipe 32 through the water outlet pipe opening 113. The siphon 32 is arranged in an inverted U-shape, according to the orientation shown in fig. 1, the left vertical water inlet section of the inverted U-shaped siphon 32 is called an upstream section, the middle arc-shaped section is called a midstream section, and the right vertical water outlet section is called a downstream section, so that the upstream section of the siphon 32 can be arranged in the upward leading-out section of the water discharge pipe 2 when the water discharge pipe 2 is arranged for upward drainage, when part of the water discharge pipe 2 arranged in the housing of the upward drainage laundry equipment extends upward and is led out from the top of the housing to achieve the purpose of upward drainage, the upstream section of the siphon 32 extends upward following the arrangement of the water discharge pipe 2, the midstream section of the siphon 32 bends downward and extends along the arc-shaped section, and the downstream section of the siphon 32 is connected to the water outlet side of the midstream section and extends downward to the underground water outlet 4. The siphon tube 32 is arranged in a siphon structure in that the water outlet of the downstream section extends to the ground water outlet 4, and therefore the water inlet of the upstream section connected to the water guiding pipe 31 is located higher than the water outlet of the downstream section. In the case that the water inlet end of the water guide pipe 31 is higher than the water outlet end of the downstream section, the water guide pipe 31 can construct an integral siphon system with the siphon pipe 32 while guiding the residual water at the bottom of the impeller chamber 111 into the siphon pipe 32, the siphon system communicating between the lowest position of the bottom of the impeller chamber 111 and the underground drainage opening 4. When the upper drainage washing equipment drains water, the motor 13 drives the impeller 12 to rotate so as to drive the washing water in the outer cylinder to be quickly drained into the underground drainage outlet 4 through the drainage pipeline 2. During this time, the water inside the impeller chamber 111 is formed into a vortex by the rotating action of the impeller 12, and the vortex partially rushes into the water introduction pipe 31 during the rotating outflow process, and gradually fills the water introduction pipe 31 and the siphon tube 32, so that the water introduction pipe 31 and the siphon tube 32 are discharged with a small amount of water at the same time as the water is discharged from the drain pipe 2. When a large amount of washing water in the outer cylinder is discharged, a small amount of water remaining in the drainage pipeline 2 enters the impeller cavity 111 and then is below the lowest position of the water outlet pipe port 113 and cannot be discharged continuously, and the downstream end of the drainage pipeline 2 generates an intake backwater phenomenon because no new washing water is injected, and at this time, even if the impeller 12 rotates, the residual water cannot be sent into the drainage pipeline 2. During this period, since the water inlet end of the water conduit 31 is always immersed in the residual water, the water conduit 31 and the siphon tube 32 are always filled with the washing water, the water conduit 31 and the siphon tube 32 suck the residual water at the bottom of the impeller chamber 111 located at a high position by a siphon action and discharge the residual water to the underground water outlet 4, and the residual water at the bottom of the filter chamber 112 flows into the impeller chamber 111 through the through structure of the partition 14, so that all the residual water inside the pump housing 11 is completely sucked out. When the water guide pipe 31 and the siphon pipe 32 suck the residual water based on the siphon principle, the impeller 12 may be rotated simultaneously to promote the water flow to enter the water guide pipe 31, or may be closed to actively suck the residual water only by the siphon action of the water guide pipe 31 and the siphon pipe 32.

In the above embodiment, the drain pipe 2 adaptively arranged in an inverted U shape according to the direction of the siphon 32 may be disposed inside the casing of the upper drain laundry device, and only the downstream section arranged downward is led out from the top of the casing, or may be disposed completely outside the upper drain laundry device, for example, after the drain pipe 2 is led out from the top of the casing, the drain pipe 2 (siphon 32) continues to be arranged upward and extends along an arc section and a downward path, and the position of the drain pipe 2 relative to the upper drain laundry device is not limited, and can be adjusted by those skilled in the art according to the pipe arrangement requirement. In addition. In the case where the water guide pipe 31 and the siphon pipe 32 are separately provided, all the arrangement modes of "the water outlet end of the water guide pipe 31 is communicated with the water inlet end of the siphon pipe 32 through the water outlet nozzle 113" include: the water outlet end of the water guide pipe 31 is positioned in the impeller cavity 111 and extends towards the water outlet pipe orifice 113, and the water inlet end of the siphon pipe 32 extends into the impeller cavity 111 through the water outlet pipe orifice 113 and is communicated with the water guide pipe 31; or, the water outlet end of the water conduit 31 extends into the water outlet pipe port 113, and the water inlet end of the siphon tube 32 also extends into the water outlet pipe port 113 and is communicated with the water conduit 31; further alternatively, the water outlet end of the water conduit 31 extends to the outside of the pump housing 11 through the water outlet pipe port 113, and the water inlet end of the siphon tube 32 is communicated with the water conduit 31 in the water discharge pipe 2. For convenience of assembly and maintenance, the last arrangement is preferably selected when the water introduction duct 31 is provided separately from the siphon tube 32, so as to increase an operation space when the water introduction duct 31 and the siphon tube 32 are connected. Of course, it is also possible for those skilled in the art to integrally provide the water introduction pipe 31 and the siphon pipe 32 and to arrange the entire pipe directly in the pump housing 11 and the downstream pipe of the drain pipe 2 according to design requirements.

Further, the water guide pipe 31 is provided below the impeller 12 and extends in the direction opposite to the rotation direction of the impeller 12. Specifically, the method is described. According to the position of fig. 1, the front of the wheel surface of the impeller 12 is arranged, in the case of water drainage, the blades rotate in the counterclockwise direction, the water guide pipe 31 is arranged along the side direction of the impeller 12, and the water inlet end of the water guide pipe 31 extends towards the lowest position of the bottom of the impeller cavity 111 in the opposite direction to the poking direction of the blades. At this time, the vortex formed in the impeller chamber 111 by the rotation of the impeller 12 rotates counterclockwise and collides with the inlet end nozzle of the water guide pipe 31, so that the water can be easily introduced into the water guide pipe 31 and the siphon tube 32 are filled with water more rapidly. As an example, the water conduit 31 is disposed along the impeller cavity 111 and closely attached to the inner wall of the impeller cavity 111, so as to avoid affecting the rotation of the impeller 12, reserve a sufficient rotation space for the impeller 12, increase the contact area between the water conduit 31 and the inner wall of the pump housing 11, provide more supporting force for the water conduit 31 by the action of close attachment, and reduce the displacement possibility of the water conduit 31.

As shown in fig. 2 and 3, in order to further improve the fixing reliability of the water conduit 31, in a preferred embodiment, the bottom of the impeller cavity 111 is provided with a sunken groove 16, the sunken groove 16 is arranged on the bottom cavity wall of the impeller cavity 111 and extends in the same direction as the water conduit 31, and at least a part of the water conduit 31 located inside the impeller cavity 111 is clamped in the sunken groove 16, so that the water conduit 31 is limited from being displaced by the tight contact between the water conduit 31 and the groove wall of the sunken groove 16. At the same time, at least a part of the water conduit 31 can be hidden in the wall of the impeller cavity 111, and the space occupied by the water conduit 31 in the impeller cavity 111 is further reduced.

Further, the sink trough 16 includes a water guiding trough section located below the impeller 12 and an accommodating trough section communicated with the water guiding trough section, and the water guiding trough section is disposed at the lowest position of the bottom of the impeller cavity 111 or between the lowest position of the bottom of the impeller cavity 111 and the water inlet end of the water guiding pipe 31, so that the residual water at the lowest position of the bottom of the impeller cavity 111 is completely introduced into the water guiding pipe 31. The water guide pipe 31 is clamped in the accommodating groove section, and the water inlet end of the water guide pipe 31 is arranged at one end of the water guide groove section close to the accommodating groove section and is positioned at the water guide terminal of the water guide groove section. According to the orientation shown in fig. 3, the sink trough 16 extends vertically, in which case the chute section guides the water upwards into the chute, and the water guiding direction of the chute section is vertically upwards. The groove width between the left and right side cell walls of the water guide groove section is gradually reduced along the vertical direction, so that the water guide groove section can feed water in a large range and accurately feed water, the flow speed of water flowing in the water guide pipe 31 is increased through the diameter changing effect, and the water inlet efficiency of the water guide pipe 31 is further improved.

Furthermore, the left and right side walls of the water guide groove section can be respectively and gradually expanded upwards along the groove depth direction so as to further increase the water guide amount of the water guide groove section. And/or the bottom of the water guide groove section can gradually sink towards the inner part of the cavity wall of the impeller cavity 111 along the water guide direction, so as to further improve the water guide effect.

More preferably, a plurality of latches capable of abutting on the outer wall of the water conduit 31 are provided on the wall of the receiving groove section, and the latches are inclined against the water inlet direction of the water conduit 31. According to the orientation shown in fig. 3, when the accommodating groove section is vertically arranged, the water inlet direction of the water conduit 31 is vertically upward, and the latch extends from the left and right groove walls of the accommodating groove section and inclines from top to bottom, so that the water conduit 31 can be limited from sliding and shifting along the water discharging direction when the water conduit 31 is impacted by the vortex. An elastic tube such as a rubber tube is preferably provided as the water guide tube 31, so that the abutting effect of the water guide tube 31 and the accommodating groove section is enhanced, and the fixation is more reliable.

As an alternative embodiment, in the case that the sink 16 is not provided to fix the water conduit 31, the upper drainage clothes washing apparatus further includes a fixing pressure plate detachably connected to the inner wall of the impeller cavity 111, the fixing pressure plate includes an arc plate protruding upward and two connecting ends respectively connected to two ends of the arc plate, the two connecting ends are respectively connected to the inner wall of the impeller cavity 111 in a screwing manner, a clamping manner, and the like, and the arc plate tightly presses the water conduit 31 against the inner wall of the impeller cavity 111 so as to limit the water conduit 31 from sliding along the cavity wall of the impeller cavity 111 and limit the water conduit 31 from sliding along the drainage direction. Of course, the specific shape of the fixed pressing plate is not limited to the structural combination of the two flat plate connecting sections and the arc-shaped plate, for example, the fixed pressing plate may also be a U-shaped clamp-like structure, at least one of the two ends of the U-shaped clamp-like structure is provided with a screw hole so as to be connected to the inner wall of the impeller cavity 111 in a threaded manner, and the water guide pipe 31 is pressed against the inner wall of the impeller cavity 111 by the inverted U-shaped clamp.

Furthermore, the side of the arc plate close to the water conduit 31 extends downwards to form a pressing tooth, the pressing tooth extends in a reverse inclined way relative to the water inlet direction of the water conduit 31, and the arc plate is abutted to the water conduit 31 through the pressing tooth, so that the fixing reliability of the water conduit 31 is further improved.

In one possible embodiment, a person skilled in the art may simultaneously provide the sink 16 and the fixing clip to limit the movement of the water guide pipe 31 according to the fixing requirement of the water guide pipe 31.

For any one of the above-mentioned upper-drainage clothes washing devices, preferably, the water outlet end of the siphon tube 32 extends out of the water outlet of the drainage pipeline 2, so as to prevent the backflow water from flowing back into the siphon tube 32 when the drainage pipeline 2 returns water, thereby affecting the water filling state of the siphon tube 32, destroying the realization basis of siphon effect and impressing residual water discharge efficiency.

Preferably, the water inlet end of the water guide pipe 31 is provided with a filtering member, the filtering member can perform secondary filtering on the water flow entering the water guide pipe 31, so as to prevent a small part of impurities which are not filtered by the filter from entering the water guide pipe 31 and further blocking the water guide pipe 31 or the siphon 32, and provide more reliable anti-blocking guarantee for the water guide pipe 31 and the siphon 32 with small pipe diameter.

Further, the filtering member is a filter net covering the water inlet end port of the water conduit 31. The water flow entering the water guide pipe 31 is filtered through the light and thin filter screen, on one hand, the water inlet speed of the water guide pipe 31 can be prevented from being obviously reduced, and on the other hand, the water guide pipe can be prevented from occupying too much space in the impeller cavity 111. Simultaneously, when piling up impurity in filter screen department, can also make impeller 12 clockwise rotation when the drainage later stage of last drainage laundry equipment, the low reaches pipeline section of drainage pipe 2 are anhydrous to stir the residual water of impeller cavity 111 bottom through the reversal mode, make the reverse aqueduct 31 of residual water inflow direction undulant, thereby take away impurity from filter screen department, avoid the filter screen to block up, realized the self-cleaning of filter screen, need not the manual work and dismantle pump case 11 and clear up.

Based on any one of the above-mentioned upper drain laundry devices, preferably, the bottom of the filter chamber 112 is gradually inclined downward in a direction approaching the impeller chamber 111 to form a slope, and the lowest position of the bottom of the filter chamber 112 is not lower than the bottom of the impeller chamber 111, so that the water at the bottom of the filter chamber 112 can reliably flow into the impeller chamber 111 through the through structure of the partition 14, thereby preventing the residual water from remaining at the bottom of the filter chamber 112 and further improving the residual water discharge effect of the drain pump 1.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. An upper drainage clothes washing device comprises an outer barrel, a drainage pipeline and a drainage pump, wherein the drainage pipeline enables the outer barrel to be communicated with the outside, the drainage pump is arranged on the drainage pipeline and comprises a pump shell and an impeller, an impeller cavity capable of containing the impeller is arranged in the pump shell, a water outlet pipe orifice communicated with the impeller cavity is arranged on the pump shell, and the upper drainage clothes washing device is characterized in that,

the upper-drainage laundry equipment further comprises a siphon component, the siphon component comprises a water guide pipe arranged in the impeller cavity and a siphon pipe arranged in the drainage pipeline, the water inlet end of the water guide pipe is arranged at the lowest position of the bottom of the impeller cavity, the water outlet end of the water guide pipe is communicated with the water inlet end of the siphon pipe through the water outlet pipe opening, the siphon pipe is arranged in an inverted U-shaped mode, the siphon pipe extends along the drainage direction of the drainage pipeline, and the water outlet end of the siphon pipe is communicated with the outside,

the water inlet end of the water guide pipe is higher than the water outlet end of the siphon pipe.

2. The upper drain laundry apparatus according to claim 1, wherein the water guide duct is disposed below the impeller and extends in a direction opposite to a rotation direction of the impeller.

3. The upper drain laundry washing apparatus according to claim 1, wherein the outlet end of the siphon tube extends out of the drain pipe.

4. The upper drain laundry apparatus according to claim 1, wherein the water inlet end of the water guide pipe is provided with a filtering member.

5. The upper drain laundry apparatus according to claim 4, wherein the filtering member is a filtering net covering the water inlet port of the water guide pipe.

6. The upper drain laundry washing apparatus according to claim 1, wherein a sink is provided at a bottom of the impeller chamber, and the water guide pipe is caught in the sink.

7. The upper drainage clothes washing apparatus according to claim 6, wherein the sink groove includes a water guide groove section located below the impeller and an accommodating groove section communicated with the water guide groove section, the water guide pipe is clamped in the accommodating groove section, and a groove width of the water guide groove section is gradually reduced along a water guide direction.

8. The upper drain laundry washing apparatus according to claim 7, wherein a plurality of latches capable of abutting against the outer wall of the water guide pipe are provided on the wall of the accommodating tub section, and the latches are provided to be inclined against the water inlet direction of the water guide pipe.

9. The upper drain laundry device according to claim 1, further comprising a fixing pressure plate detachably connected to the inner wall of the impeller cavity, wherein the fixing pressure plate comprises an arc-shaped plate protruding upwards and two connecting ends respectively connected to two ends of the arc-shaped plate, the connecting ends are connected to the inner wall of the impeller cavity, and the arc-shaped plate tightly presses the water conduit to the inner wall of the impeller cavity.

10. The upper drain laundry washing apparatus according to claim 9, wherein a pressing tooth is provided on a side of the arc-shaped plate adjacent to the water guide pipe, the pressing tooth extends obliquely in a direction opposite to a water inlet direction of the water guide pipe, and the arc-shaped plate is abutted to the water guide pipe through the pressing tooth.

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