阅读说明：本技术 一种防堵塞喷淋器和防堵塞清洗装置 (Prevent blockking up spray thrower and prevent blockking up belt cleaning device ) 是由 林孝发 林孝山 张传义 黄鲲鹏 祁耀廷 于 2020-05-19 设计创作，主要内容包括：本申请公开了一种防堵塞喷淋器和防堵塞清洗装置,防堵塞喷淋器包括喷淋臂、过水管、切换筒和弹性件,当过水管水压超过第一水压时,切换筒克服弹性件弹性力上升为喷淋臂供水；过水管水压低于第一水压时,切换筒受弹性件弹性力作用下降从过水管上的第一喷孔斜向下喷水。防堵塞清洗装置包括清洗槽、集水杯、过滤筒和上述喷淋器,其中过水管与供水管转动连接,且两者间设有第二限位结构,过水管还贯穿过滤筒的通孔,并伸入清洗槽内与喷淋臂固接；第一喷孔位于通孔之上并朝向过滤筒的筒壁。采用本申请的技术方案,一旦过滤筒筒壁发生堵塞造成泵水水压下降,即会自动切换至从第一喷孔向过滤筒筒壁喷水以清理残渣,防止过滤筒发生堵塞。(The application discloses an anti-blocking sprayer and an anti-blocking cleaning device, wherein the anti-blocking sprayer comprises a spraying arm, a water passing pipe, a switching cylinder and an elastic piece, and when the water pressure of the water passing pipe exceeds a first water pressure, the switching cylinder overcomes the elastic force of the elastic piece to rise to supply water for the spraying arm; when the water pressure of the water passing pipe is lower than the first water pressure, the switching cylinder descends under the action of the elastic force of the elastic part to spray water downwards from the first spray hole on the water passing pipe in an inclined mode. The anti-blocking cleaning device comprises a cleaning tank, a water collecting cup, a filter cylinder and the sprayer, wherein a water passing pipe is rotatably connected with a water supply pipe, a second limiting structure is arranged between the water passing pipe and the water supply pipe, and the water passing pipe also penetrates through a through hole of the filter cylinder and extends into the cleaning tank to be fixedly connected with the spraying arm; the first spray hole is positioned above the through hole and faces the cylinder wall of the filter cylinder. Adopt the technical scheme of this application, in case the cartridge filter section of thick bamboo wall takes place to block up and causes pump water pressure to descend, can automatic switch over promptly to spraying water from first orifice to cartridge filter section of thick bamboo wall in order to clear up the residue, prevent that the cartridge filter from taking place to block up.)

1. An anti-clogging sprayer is characterized by comprising:

a spray arm that rotates when spraying water;

the water passing pipe is fixedly connected with the spray arm and is communicated with the spray arm through a switching hole; the inner wall of the first groove is provided with a first bulge; a first spray hole is formed in the pipe wall above the first bulge;

the opening of the switching cylinder is downwards arranged in the water passing pipe in a sliding manner, a gap is reserved between the cylinder wall of the switching cylinder and the wall of the water passing pipe, and a water through hole and a first convex ring are respectively arranged at the positions close to the cylinder bottom and the opening; the first convex ring is positioned below the first convex and is in sliding fit with the wall of the water passing pipe;

the outer edge of the switching cylinder is also matched with the switching hole; and

an elastic member disposed between the first protrusion and the first collar;

when the water pressure of the water passing pipe exceeds a first water pressure, the switching cylinder overcomes the elastic force of the elastic part to rise, and at the moment, the water passing hole is communicated with the spraying arm and the switching hole is sealed by the outer edge of the switching cylinder; when the water pressure of the water flowing through the water flowing pipe is lower than the first water pressure, the switching barrel is descended under the action of elastic force of the elastic piece, at the moment, the water flowing hole is communicated with the gap, and the switching hole is sealed by the outer edge of the switching barrel.

2. The anti-clogging sprayer according to claim 1, wherein a first limiting structure is provided between the water passing pipe and the switching cylinder to prevent the first convex ring from disengaging from the wall of the water passing pipe.

3. The anti-clogging sprayer according to claim 2, further comprising an annular cover detachably and fixedly connected to the lower end of the water passing pipe for the first protruding ring to abut against, so as to form the first limiting structure.

4. The anti-clogging sprayer according to claim 1, wherein the resilient member is a constant force spring sleeved outside the switch cylinder.

5. The anti-clogging sprayer according to claim 1, wherein said switching cylinder comprises a switching tube, a top cover and a plurality of support posts; the first convex ring is positioned at the bottom of the switching tube; the top of the switching tube is also provided with a second convex ring; one end of each supporting column is connected with the top end of the switching tube, and the other end of each supporting column is connected with the top cover; the top cover forms the bottom of the switching cylinder, the bottom opening of the switching tube forms the opening of the switching cylinder, the water through holes are formed at intervals among the support columns, and the outer edge of the top cover and the outer edge of the second convex ring form the outer edge of the switching cylinder.

6. The anti-clogging sprayer according to claim 1, wherein said first spray orifice is eccentrically disposed obliquely downward.

7. The anti-clogging sprayer according to claim 6, wherein the water passing pipe wall is further provided with a second nozzle hole, and the second nozzle hole is located between the first nozzle hole and the first protrusion; the second spray hole is horizontally and eccentrically arranged.

8. An anti-clogging cleaning device, characterized by comprising:

a washing tank, the bottom of which is provided with a water collecting opening;

the water collecting cup is fixedly connected with the cleaning tank and is communicated with the cleaning tank through a water collecting opening; the water supply pipe is also provided with a water outlet end facing the water collecting port;

the filter cylinder is arranged in the water collecting cup and is provided with a through hole; and

a sprayer as claimed in any one of claims 1 to 6;

the water passing pipe is rotatably connected with the water supply pipe, and a second limiting structure is arranged between the water passing pipe and the water supply pipe so as to prevent the water passing pipe from being separated from the water supply pipe due to water pressure impact; the water passing pipe also penetrates through the through hole and extends into the cleaning tank through the water collecting opening to be fixedly connected with the spraying arm; the first jet hole is positioned above the through hole and faces the cylinder wall of the filter cylinder.

9. The anti-clogging cleaning device according to claim 8 wherein said filter cartridge further comprises a plurality of eccentric plates surrounding said aperture; the pipe wall of the water passing pipe is also provided with a second spray hole, and the second spray hole is positioned between the first spray hole and the first bulge; the second spray hole is horizontally arranged in an eccentric manner and is opposite to the eccentric plate.

10. The anti-clogging cleaning device according to claim 8, wherein the water pipe is inserted or sleeved in the water supply pipe; the bottom of the water passing pipe and the water outlet end of the water supply pipe are respectively provided with a second protrusion and a third protrusion which are opposite, and the second protrusion is positioned below the third protrusion to form the second limiting structure.

Technical Field

The present application relates to the field of household cleaning devices, in particular to kitchen cleaning devices, such as dishwashers.

Background

Disclosure of Invention

The utility model provides an aim at overcomes above-mentioned defect or problem that exist among the background art, provides an prevent blockking up spray thrower and prevent blockking up belt cleaning device, and it can take place to block up the back at the cartridge filter and wash cartridge filter section of thick bamboo wall in order to clear up the residue voluntarily to improve the condition that the cartridge filter blockked up.

In order to achieve the purpose, the following technical scheme is adopted:

an anti-clog sprayer, comprising: a spray arm that rotates when spraying water; the water passing pipe is fixedly connected with the spray arm and is communicated with the spray arm through a switching hole; the inner wall of the first groove is provided with a first bulge; a first spray hole is formed in the pipe wall above the first bulge; the opening of the switching cylinder is downwards arranged in the water passing pipe in a sliding manner, a gap is reserved between the cylinder wall of the switching cylinder and the wall of the water passing pipe, and a water through hole and a first convex ring are respectively arranged at the positions close to the cylinder bottom and the opening; the first convex ring is positioned below the first convex and is in sliding fit with the wall of the water passing pipe; the outer edge of the switching cylinder is also matched with the switching hole; and an elastic member disposed between the first protrusion and the first collar; when the water pressure of the water passing pipe exceeds a first water pressure, the switching cylinder overcomes the elastic force of the elastic part to rise, and at the moment, the water passing hole is communicated with the spraying arm and the switching hole is sealed by the outer edge of the switching cylinder; when the water pressure of the water flowing through the water flowing pipe is lower than the first water pressure, the switching barrel is descended under the action of elastic force of the elastic piece, at the moment, the water flowing hole is communicated with the gap, and the switching hole is sealed by the outer edge of the switching barrel.

Furthermore, a first limiting structure is arranged between the water passing pipe and the switching cylinder so as to prevent the first convex ring from being disengaged from the pipe wall of the water passing pipe.

Further, still include the annular lid, annular lid detachably rigid coupling supplies first bulge loop top to support in water pipe lower extreme to form first limit structure.

In a preferred embodiment, the elastic member is a constant force spring sleeved outside the switching cylinder.

In a preferred embodiment, the switching cylinder comprises a switching tube, a top cover and a plurality of supporting columns; the first convex ring is positioned at the bottom of the switching tube; the top of the switching tube is also provided with a second convex ring; one end of each supporting column is connected with the top end of the switching tube, and the other end of each supporting column is connected with the top cover; the top cover forms the bottom of the switching cylinder, the bottom opening of the switching tube forms the opening of the switching cylinder, the water through holes are formed at intervals among the support columns, and the outer edge of the top cover and the outer edge of the second convex ring form the outer edge of the switching cylinder.

In a preferred embodiment, the first spray hole is obliquely and eccentrically arranged downwards.

In a preferred embodiment, the water passing pipe wall is further provided with a second spray hole, and the second spray hole is positioned between the first spray hole and the first bulge; the second spray hole is horizontally and eccentrically arranged.

An anti-clog cleaning apparatus, comprising: a washing tank, the bottom of which is provided with a water collecting opening; the water collecting cup is fixedly connected with the cleaning tank and is communicated with the cleaning tank through a water collecting opening; the water supply pipe is also provided with a water outlet end facing the water collecting port; the filter cylinder is arranged in the water collecting cup and is provided with a through hole; and a sprayer as claimed in any one of claims 1 to 6; the water passing pipe is rotatably connected with the water supply pipe, and a second limiting structure is arranged between the water passing pipe and the water supply pipe so as to prevent the water passing pipe from being separated from the water supply pipe due to water pressure impact; the water passing pipe also penetrates through the through hole and extends into the cleaning tank through the water collecting opening to be fixedly connected with the spraying arm; the first jet hole is positioned above the through hole and faces the cylinder wall of the filter cylinder.

Furthermore, the filter cartridge is also provided with a plurality of eccentric plates around the through hole; the pipe wall of the water passing pipe is also provided with a second spray hole, and the second spray hole is positioned between the first spray hole and the first bulge; the second spray hole is horizontally arranged in an eccentric manner and is opposite to the eccentric plate.

In a preferred embodiment, the water passing pipe is inserted or sleeved in the water supply pipe; the bottom of the water passing pipe and the water outlet end of the water supply pipe are respectively provided with a second protrusion and a third protrusion which are opposite, and the second protrusion is positioned below the third protrusion to form the second limiting structure.

Compared with the prior art, the scheme has the following beneficial effects:

after the filter cartridge is blocked, the water surface in the cleaning tank rises, and the water pressure of the circulating pump water is reduced. The switching cylinder is influenced by the water pressure of the water passing pipe to switch between ascending and communicating the spraying arm and descending and communicating the gap and spraying from the first spray hole, so that the function of automatically switching the waterway after the filter cylinder is blocked to wash the cylinder wall of the filter cylinder to clean residues is realized, and the blockage condition of the filter cylinder is further improved. And after the filter cartridge blockage condition is improved, the water level in the cleaning tank descends, the water pressure of the circulating pump rises, and the sprayer is automatically switched back to be communicated with the spraying arm and continues cleaning. Therefore, automatic waterway switching can be realized and the blocking condition can be improved without adding a sensor and an electric waterway switching actuator.

It should be noted that the provision of the first stop arrangement is not necessary to ensure that the anti-clog sprayer is operating properly. This is because, when the switching cylinder is lowered to a certain extent, the elastic member is restored to cause the gradual loss of the elastic force until the switching cylinder receives the force of the water pressure of the water passing pipe and the self gravity and the elastic force of the remaining elastic member are equal, so that the force balance is established without being lowered. Certainly, the first limiting structure is arranged, so that the first convex ring can be better guaranteed to be disengaged from the pipe wall of the water passing pipe. The annular cover is detachably and fixedly connected to the lower end of the water passing pipe, so that the annular cover can be inserted into the switching cylinder when detached and then assembled, and the annular cover is very convenient to mount. Certainly, the first limiting structure and the annular cover thereof have more significance, and the first limiting structure and the annular cover can also control the descending stroke of the switching cylinder, so that the switching hole is closed by the outer edge of the switching cylinder after the switching cylinder descends, and water flow is sprayed out from the first spray hole through the gap to wash the cylinder wall of the filter cylinder.

The elastic piece is a constant force spring, so that the switching threshold value can be stable, and the filter cylinder is washed when the blockage happens just now.

The outer edge of the top cover and the outer edge of the second convex ring form the outer edge of the switching cylinder, which is beneficial to enlarging the gap between the switching cylinder wall and the water passing pipe wall and ensures that water flow can be smoothly sprayed out from the first spray hole through the gap.

The first spray holes are obliquely arranged downwards, and help to promote the downward movement of residues when the wall of the filter cylinder is washed. The first spray holes are eccentrically arranged, which is helpful to push the water pipe to rotate and clean all parts of the wall of the filter cartridge.

The filter cartridge is provided with an eccentric plate around the through hole, and the water pipe is provided with an eccentric second spray hole, so that water is pressed to the eccentric plate, the filter cartridge is caused to rotate reversely, and all cartridge walls of the filter cartridge are favorably and rapidly washed.

The second limit structure can avoid the water passing pipe to be impacted by water pressure to break away from the water supply pipe.

Drawings

In order to more clearly illustrate the technical solution of the embodiments, the drawings needed to be used are briefly described as follows:

FIG. 1 is an exploded view of an embodiment of an anti-clog sprayer;

FIG. 2 is a sectional view of the spray arm and the water pipe connected as a whole in the embodiment;

FIG. 3 is a schematic diagram illustrating shapes of a first nozzle hole and a second nozzle hole in the embodiment;

FIG. 4 is a perspective view of the switching cylinder in the embodiment;

FIG. 5 is a schematic structural diagram of the anti-clogging sprayer in the first state in the embodiment;

FIG. 6 is a schematic diagram of the anti-clog sprayer of the embodiment shown in the second state;

FIG. 7 is a schematic structural diagram of the anti-clogging cleaning device in the embodiment;

FIG. 8 is a schematic structural view of a water collecting cup in the embodiment;

FIG. 9 is a schematic structural view of a filter cartridge in an embodiment;

FIG. 10 is a schematic structural view of the anti-clogging cleaning device in the first state in the embodiment;

FIG. 11 is a schematic structural diagram of the anti-clogging cleaning device in the second state in the embodiment.

Description of the main reference numerals:

the anti-blocking cleaning device comprises an anti-blocking cleaning device 10, a cleaning tank 1, a water collecting cup 2, a filter cylinder 3 and a sprayer 4;

a water collecting cavity 21, a water supply pipe 22, a water discharge pipe 23, a third protrusion 24, a fourth protrusion 25;

the slag bearing part 31, the cylinder wall 32, the cylinder bottom 33, the through hole 34 and the eccentric plate 35;

the spray arm 5, the spray nozzle 51 and the spray water channel 52; the water passing pipe 6, the water passing pipe 61, the switching hole 62, the first protrusion 63, the first spray hole 64, the second spray hole 65, the second protrusion 66, the sealing ring groove 67 and the internal thread 68; the switching cylinder 7, the switching pipe 71, the top cover 72, the support 73, the first convex ring 74, the second convex ring 75, the water through hole 76, the switching passage 77 and the gap 78; an elastic member 8; an annular cover 9;

Detailed Description

In the claims and specification, unless otherwise specified the terms "first", "second" or "third", etc., are used to distinguish between different items and are not used to describe a particular order.

In the claims and specification, unless otherwise specified, the terms "central," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are used in the orientation and positional relationship indicated in the drawings and are used for ease of description only and do not imply that the referenced device or element must have a particular orientation or be constructed and operated in a particular orientation.

In the claims and the specification, unless otherwise defined, the terms "fixedly" or "fixedly connected" are to be understood in a broad sense as meaning any connection which is not in a relative rotational or translational relationship, i.e. including non-detachably fixed connection, integrally connected and fixedly connected by other means or elements.

In the claims and specification, unless otherwise defined, the terms "comprising", "having" and variations thereof mean "including but not limited to".

In the claims and specification, unless otherwise limited, the term "off-center" means that the axis of the first orifice or the second orifice does not coincide with any diameter of the draft tube, such that the reaction force exerted on the draft tube by the water jet from the first orifice or the second orifice has a tangential component, thereby causing the draft tube to rotate.

The technical solution in the embodiments will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 shows an anti-clog sprayer 4 in an embodiment. As shown in fig. 1, the clog-proof sprinkler 4 includes a sprinkler arm 5, a water passage pipe 6, a switching cylinder 7, an elastic member 8, and an annular cover 9.

As shown in fig. 1 and 2, the spray arm 5 is provided with two support arms extending in opposite directions, each support arm is provided with a plurality of nozzles 51, a spray water channel 52 is provided inside the spray arm 5, and the spray water channel 52 penetrates through the two support arms and is communicated with all the nozzles 51. At least part of the nozzles 51 have their spray direction arranged eccentrically, i.e. with a tangential component. Therefore, the shower arm 5 is rotated by a reaction force tangential to the water flow when spraying water.

As shown in fig. 1, fig. 2 and fig. 3, the water pipe 6 is fixedly connected to the spray arm 5, and in this embodiment, the water pipe 6 is integrally connected to the spray arm 5. As shown in fig. 2, the water passage pipe 6 is provided with a water passage pipe 61 along the longitudinal direction thereof, and the water passage pipe 61 communicates with the shower water passage 52 of the shower arm 5 through a switching hole 62 at the tip end thereof. The middle part of the inner wall of the water passing pipe 6 is provided with a first bulge 63, in the embodiment, the first bulge 63 is annular, and a via hole is arranged in the middle. A plurality of first spray holes 64 and a second spray hole 65 are also arranged on the pipe wall of the water passing pipe 6 between the switching hole 62 and the first bulge 63. All the first spray holes 64 are obliquely and eccentrically arranged downwards as shown in fig. 3, that is, the water outlet direction is obliquely and downwards and is not overlapped with any diameter direction of the water passing pipe 6, in the embodiment, in order to obtain the best effect, all the first spray holes 64 are tangentially arranged. The second nozzle holes 65 are located below the first nozzle holes 64 and horizontally arranged eccentrically, and the second nozzle holes 65 are also arranged tangentially in the embodiment. As shown in fig. 2, under the first protrusion 63, the inner wall of the bottom end of the water passing pipe 6 is further provided with an internal thread 68; the outer wall of the bottom end of the water passing pipe 6 is also provided with a second bulge 66, and the second bulge 66 is in a ring shape with thickness; the outer wall of the second projection 66 is also provided with a seal ring groove 67.

As shown in fig. 4, in the present embodiment, the switching tube 7 can be generally understood as a tube shape with an opening facing downward, and includes a switching tube 71, a top cover 72, and a plurality of support columns 73. The switching tube 71 is tubular, the outer wall of the lower end of the switching tube is provided with a first convex ring 74, and the first convex ring 74 is matched with the inner wall of the water passing tube 62; the top of the switching tube 71 is provided with a second convex ring 75, and in this embodiment, the second convex ring 75 is located on the outer wall of the top end of the switching tube 71. The outer diameter of the top cover 72 is the same as the outer diameter of the second male ring 75. One end of each support column 73 is connected to the top end of the switching tube 71, and the other end is connected to the top cover 72. In this embodiment, the top cover 72 forms the bottom of the switch tube 7, the bottom opening of the switch tube 71 forms the opening of the switch tube 7, the water passage holes 76 are formed at the intervals between the support posts 73, and the outer edges of the top cover 72 and the second collar 75 form the outer edge of the switch tube 7.

As shown in fig. 1, 5 and 6, the elastic member 8 is a constant force spring sleeved outside the switching cylinder 7 in this embodiment.

As shown in fig. 1, 5 and 6, the annular cover 9 has two parts, one of which is a cover body and the other of which is an extension part, the outer diameter of the cover body is consistent with the outer diameter of the water passing pipe 6, and the inner diameter of the cover body is consistent with the inner diameter of the first convex ring 74; the extension part extends upwards from the upper surface of the cover body, the outer wall of the extension part is provided with external threads matched with the internal threads 68 of the water passing pipe 6, and the inner diameter of the extension part is consistent with that of the cover body.

The steps of connecting the anti-clogging sprayer 4 are as follows:

firstly, the switching cylinder 7 is plugged into the water passing pipe 61 of the water passing pipe 6 in the direction that the top cover 72 faces the spray arm 5, and the top cover 72 and the second convex ring 75 are both enabled to pass through the through hole of the first bulge 63 until the first convex ring 74 passes through the internal thread 68 of the water passing pipe 6 to be in sliding fit with the inner wall of the water passing pipe 6 and is positioned below the first bulge 63; at this time, a gap 78 (shown in fig. 5 and 6) is formed between the outer pipe wall of the switching pipe 71 and the inner pipe wall of the water passing pipe 6.

Finally, the external thread on the extension of the annular cap 9 is screwed with the internal thread 68 of the water pipe 6, so that the annular cap 9 is detachably fixed to the lower end of the water pipe 6.

The anti-clogging sprayer 4 in this embodiment switches between two states.

Fig. 5 shows the structural relationship of the deblinding sprinkler 4 in a first state. When the water pressure of the water flowing through the water pipe 6 exceeds the first water pressure (which is equal to the sum of the compression constant-pressure elastic force of the elastic member 8 and the self-weight of the switching cylinder 7, i.e. the user can determine the first water pressure by selectively matching the compression constant-pressure elastic force of the elastic member 8 and adjusting the self-weight of the switching cylinder 7), the switching cylinder 7 is pressed to overcome the elastic force of the elastic member 8 to rise until the top cover 72 abuts against the upper wall of the spray water channel 52 to enter the first state. At this time, the outer edge of the switching tube 7, that is, the outer edge of the second collar 75 closes the switching hole 62, so that water does not flow from the switching hole 62 into the gap 78 between the outer wall of the switching tube 71 and the inner wall of the water passing tube 6, but flows from the water passing hole 76 into the shower water passage 52, and is ejected from the nozzles 51.

Fig. 6 shows the structural relationship of the deblinding sprinkler 4 in a second state. When the water pressure of the water passing pipe 6 is lower than the first water pressure, the switching pipe 7 is descended by the elastic force of the elastic member 8 until the first convex ring 74 abuts against the upper surface of the extension part of the annular cover 9 to enter the second state. At this time, the outer edge of the switching cylinder 7, that is, the outer edge of the top cover 72 closes the switching hole 62, so that water cannot flow into the shower water passage 52 from the switching hole 62, but flows into the gap 78 between the outer wall of the switching pipe 71 and the inner wall of the water passing pipe 6 from the water passing hole 76, and is ejected from the first injection holes 64 and the second injection holes 65.

FIG. 7 shows the structure of the anti-clog cleaning apparatus 10 in the embodiment. As shown in FIG. 7, the anti-clog washing apparatus 10 includes a washing tub 1, a water collection cup 2, a filter cartridge 3, a sprayer 4 as described above, and other components of a sink dishwasher.

As shown in fig. 7, the washing tub 1 is one of dual-tub type washing tubs, and is used for placing dishes to be washed, and the dishes to be washed can be placed in the basket, and then the basket is placed in the washing tub 1. The cleaning tank 1 is provided with a cleaning cavity, and the middle part of the tank bottom of the cleaning tank is provided with a water collecting opening.

As shown in fig. 10 and 11, the water collection cup 2 is fixed to the bottom surface of the washing tub 1. As shown in figure 8, the water collecting cup 2 is provided with a water collecting cavity 21, and the water collecting cavity 21 is communicated with the cleaning cavity through a water collecting opening. A water supply pipe 22 is arranged in the center of the inclined bottom of the water collecting cup 2, the water outlet end of the water supply pipe 22 faces the water collecting port, a third bulge 24 is arranged inwards at the water outlet end of the water supply pipe, and the third bulge 24 is four elastic clamping claws. The water inlet end of the water supply pipe 22 is connected to the water outlet end of the circulation pump. The bottommost part of the inclined cup bottom of the water collecting cup 2 is also provided with a drain pipe 23 in an inclined and downward extending mode, and the drain pipe 23 is communicated with the water collecting cavity 21. The drain pipe 23 is used for discharging water in the water collecting cavity 21, and in the embodiment, the drain pipe connects two branches, wherein the first branch is connected with the water inlet end of the circulating pump, and the second branch is connected with the drain pipeline through the drain valve. In each water circulation process, the drain pipe 23 is communicated with the first branch to supply water to the circulating pump; at the end of each water cycle, the drain 23 communicates with the second branch to drain water from the water collection chamber 21 to the drain line through the drain valve. A fourth bulge 25 is further arranged on the inner cup wall of the water collecting cup 2, and the fourth bulge 25 is used for supporting the filter cartridge 3.

The filter cartridge 3 is shown in fig. 9. In this embodiment, the filter cartridge 3 includes a slag receiving portion 31, a cartridge wall 32, a cartridge bottom 33, and a connecting portion 35 integrally connected to each other. The cylinder wall 32 is located in the middle of the filter cartridge 3, and is a circular ring-shaped object with a certain height, and a plurality of filter holes are arranged on the cylinder wall 32. The slag bearing part 31 is provided with an upper section and a lower section, the upper section is also a circular object with a certain height, the diameter of the circular object is larger than that of the cylinder wall 32, the lower section is an inverted cone tubular object, the upper end of the lower section is connected with the upper section, and the lower end of the lower section is connected with the cylinder wall 32; the wall of the slag receiving part 31 has a thickness equal to that of the cylinder wall 32, and a plurality of filtering holes are formed in the wall. The bottom 33 is connected with the lower end of the cylinder wall 32, and has an outer part and an inner part, the outer part of the bottom 33 extends out of the cylinder wall 32, is annular and horizontally arranged, the outer diameter of the outer part of the bottom 33 is equal to that of the slag bearing part 31, and the outer diameter of the bottom 33 is matched with the inner diameter of the water collecting cup 2, so that the filter cartridge 3 can rotate in the water collecting cup 2. The inner part of the through hole is positioned in the cylinder wall 32 and is provided with a through hole 34, and the diameter of the through hole 34 is larger than that of the second bulge 66 of the water passing pipe 6. On the upper surface of the inside of the cylinder bottom 33, a plurality of eccentric plates 35 are further provided around the through hole 34, and the eccentric plates 35 are eccentrically disposed as shown in fig. 9.

The installation steps of the anti-clogging cleaning device 10 of the embodiment are as follows:

the water collecting cup 2 is first connected to the bottom of the washing tank 1 and the water collecting chamber 21 is connected to the washing chamber through the water collecting opening.

The filter cartridge 3 is then placed in the water cup 2 such that the bottom 33 of the filter cartridge 3 abuts the fourth protrusion 25 of the water cup 2, the fourth protrusion 25 supporting the filter cartridge 3 such that the filter cartridge 3 can no longer move downward.

Then, a sealing ring is sleeved in a sealing ring groove on the mounted sprayer 4;

finally, the shower 4 is passed through the water collecting port and the through hole 34 of the filter cartridge 3 in a posture in which the second projection 66 is directed downward and is pressed against the third projection 24 of the water supply pipe 22, so that the third projection 24 is deformed, so that the second projection 66 is squeezed into the water supply pipe 22 and is finally located entirely below the third projection 24, thereby completing the installation.

If the filter cartridge 3 needs to be detached, the sprayer 4 is pulled out firstly, and then the filter cartridge 3 is taken out from the water collecting cup 2.

After the anti-clogging cleaning device 10 of the present embodiment is installed, the water pipe 2 is unsupported, so the spray arm 5 abuts against the bottom of the cleaning tank 1. After the cleaning is started, the circulating pump supplies water to the water supply pipe 2, water flow enters the switching cylinder 7 through the annular cover 9, the top cover 72 is pressed to drive the switching cylinder 7 to ascend until the top cover 72 abuts against the upper wall of the spraying water channel 52 of the spraying arm 5, then the spraying arm 5 is driven to ascend until the second protrusion 66 abuts against the third protrusion 24, at this time, the anti-clogging sprayer 4 enters the first state, and the whole anti-clogging cleaning device 10 is shown in fig. 10. At this time, the outer edge of the switching tube 7, that is, the outer edge of the second collar 75 closes the switching hole 62, so that water does not flow from the switching hole 62 into the gap 78 between the outer wall of the switching tube 71 and the inner wall of the water passing tube 6, but flows from the water passing hole 76 into the shower water passage 52, and is ejected from the nozzles 51.

In the cleaning process, the water level in the cleaning tank 1 rises due to the residue blocking the wall 32 of the filter cartridge 3, when the water pressure of the circulating pump drops below the first water pressure, the switching cartridge 7 drops under the elastic force of the elastic member 8 until the first convex ring 74 abuts against the upper surface of the extension part of the annular cover 9 to enter the second state, and the whole anti-clogging cleaning device 10 is as shown in fig. 11. At this time, the outer edge of the switching cylinder 7, that is, the outer edge of the top cover 72 closes the switching hole 62, so that water cannot flow into the shower water passage 52 from the switching hole 62, but flows into the gap 78 between the outer wall of the switching pipe 71 and the inner wall of the water passing pipe 6 from the water passing hole 76, and is ejected outward from the first injection holes 64 and the second injection holes 65. At this time, the first spray holes 64 are eccentrically arranged downwards in an inclined way and face the cylinder wall 32 of the filter cylinder 3, the water flow sprayed out from the first spray holes 64 washes the cylinder wall 32, so that the residue falls into the cylinder bottom 33 of the filter cylinder 3, and the water flow sprayed out from the second spray holes 65 is eccentrically arranged horizontally and is directed to the eccentric plate 35, so that the filter cylinder 3 rotates in the water collecting cup 2 under the tangential force. The filter cartridge 3 rubs with the water in the water collecting cup 2 during the rotation process, and is also beneficial to the residue falling into the cartridge bottom 33. When the residue falls into the bottom of the barrel, the blocking condition of the filter barrel 3 is improved, at the moment, the water level in the cleaning tank 1 is lowered, the water pressure of the circulating pump is recovered, the switching barrel 7 is driven to overcome the elastic force of the elastic part 8, the elastic part is lifted to the first state, and the bowls and dishes are cleaned again.

As can be seen from the above description, the embodiment of the present application realizes the function of automatically switching the water path to wash the cylinder wall 32 of the filter cartridge 3 to clean up the residue after the filter cartridge 3 is clogged, thereby improving the clogging of the filter cartridge 3. And after the situation that the filter cylinder 3 is blocked is improved, the water level in the cleaning tank 1 descends, the water pressure of the circulating pump rises, and the sprayer 4 is automatically switched back to be communicated with the spraying arm 5 to continue cleaning. Therefore, automatic waterway switching can be realized and the blocking condition can be improved without adding a sensor and an electric waterway switching actuator. Meanwhile, the embodiment of the present application controls the descending stroke of the switching cylinder 7 by providing the first limiting structure and the annular cover 9, so as to ensure that after descending, the outer edge of the switching cylinder 7 closes the switching hole 62, and water is completely sprayed out from the first spray holes 64 through the gap 78 to wash the cylinder wall 32 of the filter cylinder 3. In the embodiment of the present application, the elastic member 8 is configured as a constant force spring, which can stabilize the switching threshold, thereby ensuring that the filter cartridge is washed when the blockage occurs. In the present application, the outer edge of the switching tube 7 is formed by the outer edge of the top cover 72 and the outer edge of the second protruding ring 75, which contributes to enlarging the gap 78 between the tube wall of the switching tube 7 and the tube wall of the water passage tube 6, and allows the water to be smoothly ejected from the first nozzle hole 64 through the gap 78. The present embodiment has the first nozzle holes 64 arranged obliquely downward to help promote downward movement of the residue when washing the cylindrical wall 32 of the filter cartridge 3. The first nozzle holes 64 are eccentrically arranged to help push the water pipe 6 to rotate and clean all parts of the cylindrical wall 33 of the filter cartridge 3. In this embodiment, the filter cartridge 3 is provided with an eccentric plate 35 around the through hole 34, and the water pipe 6 is provided with an eccentric second nozzle hole 65, so that water is pressed to the eccentric plate 35, and the filter cartridge 3 rotates in a reverse direction, which is beneficial to rapidly washing all the cartridge walls 32 of the filter cartridge 3. In this embodiment, the engagement between the second protrusion 66 and the third protrusion 24 can prevent the water pipe 6 from being separated from the water supply pipe 22 due to the impact of water pressure.

The description of the above specification and examples is intended to be illustrative of the scope of the present application and is not intended to be limiting.