KR102056060B1 - Automatic washing device of sink drain - Google Patents

Abstract

The present invention relates to an automatic washing device for a sink drain. According to the present invention, the automatic washing device for a sink drain forms an inner rotating filter container of a sink in a rotating type and detachably fastens a brush member having a plurality of brushes positioned on an inner circumferential surface and a floor surface of the inner rotating filter container to a lower portion of a protecting cap, thereby removing foreign substances generated in the inner rotating filter container by rotation of the inner rotating filter container to provide convenience. In addition, the automatic washing device for a sink drain is detachably installed with a fixing container washing brush body on an outer circumferential surface and the floor surface of the inner rotating filter container, thereby removing foreign substances of an inner circumferential surface of an outer fixing container, and sprays high pressure hot water to areas of the outer circumferential surface and the floor surface of the outer fixing container, thereby cleanly washing and drying the inner rotating filter container and the outer fixing container, from which the foreign substances are removed, to be excellent in hygiene.

Description

Automatic washing device of sink drain

The present invention relates to a sink drain automatic washing apparatus, and in detail, the internal rotating filter net bucket of the sink is configured to rotate, fastening the brush member located on the inner circumferential surface and bottom surface of the internal rotary filter net to the blocking cap, The hot water is sprayed to remove foreign substances generated in the inner rotary strainer to maintain cleanliness and to dry.

In general, the sink is installed in a kitchen such as a home or a restaurant, and is a space for washing kitchen vessels such as various bowls. In this sink, the sink is formed in the bottom of the drain in the bottom direction, the inside of the drain is filtered to filter the food debris is inserted, the drain hose is discharged so that the used wash water is discharged to the bottom of the net Is connected, it consists of a structure that is installed on the upper cover of the strainer.

Prior arts of such sinks are registered Patent Nos. 10-1282870 (Invention name: Sink strainer and dehydrator body internal cleaning device), Registered Patent No. 10-1150175 (Name of invention: sink cleaning device for sink) and registered utility model No. 20-0440139 (designated name: food waste collection container with a brush rotating body) has been proposed.

The sink sieve strainer and the dehydrator inside the washing apparatus of the prior art, the food waste flowing into the drain through the sink and at the bottom of the casing is formed sewage outlet; A filtering network installed inside the casing to filter food waste; A dewatering and crushing screw installed inside the strainer to rotate and dehydrate the food waste contained in the strainer while being rotated by a motor; And washing means which is rotated by the rotational force of the dehydration and grinding screw and is positioned between the strainer and the casing to wash the outer circumferential surface of the strainer and the inner circumferential surface of the casing, and the drain hole of the sink It is installed on the filter to filter food waste and to automatically clean the filter net and dehydration container body to dehydrate food waste to prevent the occurrence of odor and maintain a pleasant environment. have.

However, the above-described prior art has a problem that the washing power is lowered by washing off the impurities deposited on the inner surface of the casing and the outer surface of the filter net by the cleaning rubber plate, and the bottom surface cannot be cleaned.

In addition, the cleaning device of the sink manure of the prior art, the space is formed inside and the main body is mounted on the top of the manure; A support is formed and the support is rotatably coupled to the main body; First to third pinion gears installed in the main body and connected to each other; First and second bevel gears connected to the third pinion gear; A fourth pinion gear connected to the second bevel gear; And an actuating rod having an elevating operation and a rack gear connected to the fourth pinion gear. And a resilient means supported by the operating rod, and since the cleaning tool is operated by a simple switch operation from the outside, it is possible to remove the debris stuck to the wall surface of the filter box, so it is very convenient to use and can be frequently cleaned by such convenience. Since hygiene can be improved, the effect of removing the source of odor, which is a worry of housewives, is obtained.

However, this prior art can not remove the residue adhered to the inner bottom surface and the outer peripheral surface of the strainer, after separating the strainer, the inconvenience that the user has to remove.

In addition, the food waste collection container with a built-in brush rotating body of the prior art, the food waste collection container structure is provided in a configuration including a brush rotating body between the collection body and the screen net, the collection body is a brush rotating body With a rail for rotating, the screen net is a structure that is fixed to the collector body in a removable state by the assisting tool, and the configuration that the brush rotating body rotates by the drive means between the screen net and the collector body, By providing an improved structure of the food waste collector to fundamentally eliminate the awful odor pollution problem occurring in the food waste collector, it can give housewives the effect of solving the mental stress, irritability and hysteria caused by the odor. .

However, this prior art has a problem that the brush provided in the brush rotating body is located on the outer circumferential surface of the screen net, so that the odor generated in the inner circumferential surface of the screen net is not easy to remove and the clean finish cannot work. Occurred.

The present invention has been made to solve such a conventional problem, the object of the present invention is to configure the inner rotary mantle of the sink rotatably, the brush is mounted on the inner circumferential surface and the bottom surface of the inner rotary mantle The sink is drained vertically by fastening the member to the blocking cap and installing a fixed cylinder washing brush on the outer circumferential surface and the bottom surface of the inner rotary filter net to remove the foreign substances generated on the inner circumferential surface and the bottom of the inner rotary filter net. An automatic cleaning device is provided.

Another object of the present invention is to spray the high pressure hot water to the outer circumferential surface and the bottom surface area of the outer fixing barrel to clean and dry the inner rotary sieve mesh and the outer fixing barrel to remove foreign substances.

Means for solving the problem to achieve the above object is that the upper portion is detachably coupled to the upper inner circumferential surface of the protruding coupling portion of the sink, and provided with a rotating motor that is forward and backward in the lower center area, the outer side having a drain trap on one side Fixed passage; The lower center region is fixed to the top of the motor shaft of the rotary motor, the fixed barrel cleaning brush body is detachably installed to the inner peripheral surface and the bottom surface of the outer fixing cylinder on the outer peripheral surface and the bottom surface, a plurality of water on the outer peripheral surface and the bottom surface An internal rotary filter net through which discharge holes are formed; And a brush member that is vertically detachably fastened to a lower central area of the blocking cap seated on the outer fixing cylinder and removes foreign substances generated on the inner circumferential surface and the bottom surface of the inner rotating strainer; The high pressure tank mounted on the bottom of the motor case and the high-pressure valve mounted inside the rotating motor are sprayed with high pressure to the inner rotary filter net area inside the outer fixed cylinder, and the outer circumferential surface of the inner rotary filter net and external fixed cylinder Foreign substance washing means for washing foreign substances generated on the inner circumferential surface; Characterized in that the control means for controlling the operation of the rotary motor and the high-pressure valve.

According to the present invention, the inner rotary strainer of the sink is configured to be rotatable, and the inner rotary strainer is connected to a plurality of brushes mounted on the inner circumference and bottom of the inner strainer to be vertically separated from the lower portion of the blocking cap to rotate the inner strainer. Convenience was provided by removing the foreign substances generated in the inner rotary filter net by rotating the cylinder.Also, the fixed cylinder washing brush body is detachably installed on the outer circumferential surface and the bottom of the inner rotary filter net to remove foreign substances on the inner circumferential surface of the external fixed cylinder. In addition, it is possible to spray the high-pressure hot water to the outer circumferential surface and the bottom surface area of the outer fixing barrel to clean and dry the inner rotary sieve bucket and the outer fixing barrel to remove foreign substances, thereby providing excellent hygiene.

1 is a configuration diagram schematically showing the overall structure of the automatic sink drain automatic washing apparatus according to the present invention.
Figure 2 and Figure 3 is a block diagram showing the inner rotary sieve mesh of the sink drain automatic washing apparatus according to the present invention.
Figure 4 is a block diagram showing a fixed barrel washing brush body installed in the inner rotary sieve mesh of the sink drain automatic washing apparatus according to the present invention.
Figure 5 is a block diagram showing a brush member of the sink drain automatic washing apparatus according to the present invention.
Figure 6 is a block diagram showing an operating state of the automatic sink drain automatic washing apparatus according to the present invention.
Figure 7 is a block diagram showing a fixed barrel cleaning brush body for another embodiment of the sink drain automatic washing apparatus according to the present invention.
Figure 8 is another embodiment of the sink drain automatic washing apparatus according to the present invention, a state in which the filter net for filtering food waste inside the inner rotary strainer is installed.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 of the accompanying drawings is a schematic diagram showing the overall structure of the automatic sink drain automatic washing apparatus according to the present invention, Figure 2 and Figure 3 shows an internal rotary filter net of the automatic sink drain automatic washing apparatus according to the present invention 4 is a block diagram illustrating a fixed tub washing body installed in an inner rotary filter net of the sink drain automatic washing apparatus according to the present invention, and FIG. 5 is a sink drain automatic washing apparatus according to the present invention. It is a block diagram which shows the brush member.

As shown in Figures 1 to 5, the sink drain automatic washing apparatus according to the present invention includes a sink (10) formed with a protrusion coupling portion 12 having a drain hole (12a) on the bottom surface; An outer fixing cylinder 20 having an upper portion detachably coupled to an upper inner circumferential surface of the protruding coupling portion 12 and having a rotation motor 30 pivoted in a lower center region; The lower center region is fixed to the upper end of the motor shaft 31 of the rotary motor 30, and the fixed tub washing body 50 can be separated from the inner circumferential surface and the bottom surface of the outer fixing cylinder 20 on the outer circumferential surface and the bottom surface thereof. It is installed so as to, the inner rotary filter mesh 40 is formed with a plurality of water discharge holes 42 on the outer peripheral surface and the bottom surface; Brush member for removing foreign substances generated on the inner circumferential surface and the bottom surface of the inner rotary sieve mesh 40 is vertically fastened detachably to the lower central area of the blocking cap 60 seated on the outer fixing cylinder 20 ( 70); Fixed in the bottom of the outer fixing cylinder 20, the hot water supplied by the high-pressure tank 82 and the high-pressure valve (83) mounted on the bottom of the motor case 81, the rotary motor 30 is mounted inside the external fixing cylinder (20) foreign matter washing means (80) for washing the foreign substances generated on the inner circumferential surface and the outer fixed cylinder 20, the inner circumferential surface of the inner rotary strain mesh (40) by spraying at a high pressure into the inner rotary strain mesh (40); Control means 130 for controlling the operation of the rotary motor 30 and the high-pressure valve (83).

One end of the outer fixing cylinder 20 is provided with a drain trap 100 through which the sewage passing through the inner rotary filter net 40 is discharged to a sewer line (not shown). It is U-shaped to block odor backflow.

The inner rotary strain net 40 is the top is open, made of stainless steel formed with a plurality of water discharge holes 42 to facilitate the drain on the outer peripheral surface and the bottom surface.

The fixed barrel washing brush body 50 has a plurality of assembling through holes 52 formed on the outer circumferential surface, the corners and the bottom surface of the inner rotary filter net (40); The body 53 is coupled to the assembly through holes 52 to protrude outward, the head 53 is in close contact with the inner rotary filter mesh 40 of the outer periphery of the assembly through holes 52, the outer periphery surface (53a) is formed ( A fastening spacer 55 made of 54; It is fixed to the end of the body (53) of the fastening spacer 55 consists of a cleaning brush (57) located close to the inner circumferential surface, the corner and the bottom surface of the outer fixing cylinder (20).

The cover (59) is coupled to the body (53) of the fastening spacer (55) to protect the cleaning brush (57), and is used when the fastening spacer (55) is coupled to the assembly through hole (52).

That is, the cleaning brush 57 is coupled to the body 53 of the fastening spacer 55 to be secured to open at the end of the body 53, and is separated, and then coupled to the assembly through hole 52 to separate and clean the cleaning brush. 57 is returned to its original position.

The brush member 70 includes a main vertical rod 71 which is screwed to an upper part in a lower central area of the blocking cap 60 so as to be detachable; Main horizontal rods 71 of the plurality of horizontal rods 72 which are separated and displaced horizontally by maintaining the same distance and length on the outer circumferential surface of the upper and lower parts, and fixed to the end of the horizontal rod 72 of the inner rotary strain mesh 40 An inner circumferential surface washing body 74 composed of a body washing brush 73 positioned proximate to the inner circumferential surface; The inner rotary strainer is fixed to the end of the inclined rod 75 and the lower inclined rod 76 and the inclined rod 75 and the lower inclined rod 76 detachably fastened to the lower and lower ends of the main vertical rod 71. It consists of a bottom washing body (78) consisting of a bottom washing brush (77) located close to the bottom of the (40).

At this time, the washing brush 57 and the body washing brush 73 and the bottom washing brush 77 of the fixed barrel cleaning brush body 50 is made of a material having its own elastic force.

The foreign substance washing means 80 is mounted on the bottom of the motor case 81, the high pressure tank 82 and the high pressure valve 83 for discharging the hot water stored in the high pressure connected to the hot water line 84; A hot water supply line 85 piped to an outer bottom surface and an outer circumferential region of the high pressure tank 82, the high pressure valve 83, and the outer fixing cylinder 20; It is detachably fastened to the top and bottom of the hot water supply line 85, the end is coupled through the outer circumferential surface and the bottom surface of the outer fixed cylinder 20, the hot water to the inner circumferential surface and the bottom surface area of the inner rotary sieve (40) It consists of a plurality of hot water injection port (86) for spraying.

At this time, the hot water is injected through the hot water injection port 86 by the pressure of the high-pressure valve 83 to discharge the water in the inner circumferential filter mesh 40, the inner circumferential surface and the bottom area to facilitate the inflow into the inner rotary filter mesh (40). The diameter of the ball 42 is large.

On the other hand, the contents shown in Figure 7 shows another embodiment of the fixed barrel cleaning brush, the same name and the same reference numerals will be used for the same components.

The fixed barrel washing brush body (50) and a plurality of external horizontal rods (90) which are detachably fastened horizontally at equal intervals to the outer circumferential surface of the inner rotary strain net (40); A body brush 91 fixed to an end of the outer horizontal rod 90 and positioned to be close to the inner circumferential surface of the outer fixing cylinder 20; An outer inclined rod 92 and an outer lower end rod 93 which are detachably fastened to the bottom edge outer circumferential surface and the bottom surface of the inner rotary sieve mesh 40 in an inclined and vertical manner; It is fixed to the end of the outer inclined rod 92 and the outer lower rod 93, and consists of a bottom surface brush 94 which is located close to the bottom edge and the bottom surface of the outer fixing cylinder (20).

In addition, as shown in FIG. 8, when washing the upper portion of the outer fixing barrel 20, the upper cap 62 made of various food wastes and tap water to be introduced into the inner rotary mantle 40 is seated, the inner rotary mantle ( The inner circumferential surface of the 40 is provided with a strainer 63 for filtering various food wastes 2.

The operating state of the sink drain automatic washing apparatus according to the present invention configured as described above will be described schematically.

As shown in FIG. 8, when the user pours down the tap water while washing dishes in the sink 10, the tap water and the food waste pass through the upper cap 62 seated on the outer fixing barrel 20, and the inner rotary manure bucket 40 ) Food waste (2) is left into the sieve (63) inside, the water (filtrate) is passed through the water discharge hole (42) of the inner rotary sieve (40) into the outer fixing barrel (20) inside It is introduced and discharged to the sewer line (not shown) through the drain trap 100 on one side of the bottom.

When washing dishes repeatedly as described above, food waste is accumulated inside the filtering net 63 inside the inner rotary filter net 40 and foreign matter on the inner and outer circumferential surfaces of the water discharge hole 42 and the inner circumferential surface and the bottom surface of the water discharge hole 42. (Oil, mold, etc.) is generated, the smell will also occur.

As described above, the operation state of the automatic sink drain automatic cleaning device for cleaning the foreign substances generated on the inner and outer peripheral surfaces of the water discharge hole 42 and the inner and outer fixing cylinders 20 and the bottom surface of the inner rotary sieve mesh 40 is outlined. Shall be.

6, when the blocking cap 60 is seated on the upper portion of the outer fixing barrel 20, the inner circumferential surface washing body constituting the brush member 70 detachably coupled to the lower central region of the blocking cap 60. The horizontal cleaning brush 73 of 74 and the bottom cleaning brush 77 of the bottom washing body 78 are located in close proximity to the inner circumferential surface and the bottom surface of the inner rotary sieve mesh 40.

Next, when the rotary motor 30 and the high pressure valve 83 inside the motor case 81 fixed to the bottom of the outer fixed cylinder 20 are operated at the time, speed and pressure set by the control means 130, the rotary motor Rotation of the (30) is to rotate the inner rotary filter mesh 40 is fixed to the lower center area on the motor shaft (31).

Accordingly, the inner circumferential washing body 74 and the bottom washing brush 77 of the brush member 70 which are vertically fastened detachably to the lower central region of the blocking cap 60 seated on the outer fixing barrel 20. By removing the foreign matter on the inner circumferential surface and the bottom surface of the inner rotary filter mesh (40).

To explain this schematically, as shown in FIG. 5, the inner rotary filter mesh 40 is detachable and offset horizontally on the outer circumferential surface of the main vertical rod 71 which is detachably screwed to the lower central region of the blocking cap 60. The foreign matter on the inner circumferential surface of the inner rotary strain net 40 is removed by the body washing brush 73 fixed to the end of the horizontal rod 72 fastened to the inner circumferential surface of the inner rotary strain mesh 40, and the main vertical rod ( The bottom of the inner rotary sieve (40) by the bottom washing brush 77 is fixed to the end of the inclined rod (75) and the lower inclined rod (76) of the 71 is located close to the bottom surface of the inner rotary sieve (40) Foreign matter on the cotton is removed.

At the same time, as shown in Figure 2 to 4, the outer fixed cylinder by the fixed barrel washing brush body 50 is detachably fastened to the inner rotary filter mesh 40 in close proximity to the inner peripheral surface and the bottom surface of the outer fixed cylinder 20. (20) Remove foreign substances on the inner circumferential surface and the bottom surface.

If this is outlined, it is fixed to the end of the body (53) of the fastening spacer (55) which is coupled to protrude outward as the body (53) to the assembly through-hole 52 of the outer circumferential surface, the corner and the bottom surface of the inner rotary filter mesh (40) By removing the cleaning brush 57, the outer fixing barrel 20, the outer peripheral surface, and removes foreign substances on the bottom surface.

At the same time, the hot water inside the high pressure tank 82 is operated by the high pressure valve 83 operated for the pressure and time set by the control means 130, and the outer bottom surface and the outer circumferential region of the high pressure valve 83 and the outer fixing cylinder 20. Through the hot water injection port (86) separably fastened to the hot water supply line (85) which is piped in, to the water discharge hole (42) of the inner circumferential surface and the bottom surface area of the rotating inner rotary sieve (40), Foreign substances removed by the fixed barrel washing body 50 and the brush member 70 are sterilized and sanitary washing is performed without fear of bacterial infection, and is discharged to the sewer line (not shown) through the drain trap 100. Is processed.

Thereafter, the water of the outer fixing barrel 20 and the inner rotary sieve mesh 40 is dried as heat remaining by the high pressure hot water, so that it can always be kept dry.

On the other hand, when the operation state for another embodiment of the fixed barrel cleaning brush body 50 as shown in Figure 7 schematically, the external horizontal rod 90 is detachably fastened to the outer circumferential surface of the inner rotary strain mesh (40) Fixed to the end, the body brush 91 is located close to the inner circumferential surface of the outer fixing cylinder 20, and is inclined and vertically detachably fastened to the outer circumferential surface and the bottom surface of the lower edge of the inner rotary sieve (40) The inner circumferential surface of the outer fixing cylinder 20 is fixed to the ends of the outer inclined rod 92 and the outer lower vertical rod 93, and is a bottom surface brush 94 positioned near the bottom edge and the bottom surface of the outer fixing cylinder 20. This removes debris from corners and bottom surfaces.

The sink drain automatic washing apparatus according to the present invention described above is not limited to the above-described embodiment, and those skilled in the art without departing from the gist of the present invention claimed in the following claims. Anyone would have the technical idea to the extent that various changes can be made.

10: sink 12: protruding coupling portion
20: external fixed cylinder 30: rotating motor
31: motor shaft 40: internal rotary strainer
42: water discharge hole 50: fixed barrel cleaning brush body
52: assembly through 53: body
53a: protrusion 54: head
55: fastening spacer 57: cleaning brush
60: blocking cap 70: brush member
71: vertical rod 72: horizontal bar
73: body washing brush 74: inner peripheral washing body
75: inclined bar 76: lower inclined bar
77: floor cleaning brush 78: floor cleaning body
80: foreign matter cleaning means 81: motor case
82: high pressure tank 83: high pressure valve
85: hot water supply line 86: hot water jet
90: external horizontal rod 91: body brush
92: Outer slope rod 93: Outer bottom rod
94: bottom brush 100: drain trap
130 control means

Claims (6)

The upper portion is detachably coupled to the upper inner circumferential surface of the protrusion coupling portion 12 of the sink 10, and the rotary motor 30 is pivotally rotated in the lower center region, and the drain trap 100 is provided at one side of the lower portion. Fixing cylinder 20;
The lower center region is fixed to the upper end of the motor shaft 31 of the rotary motor 30, the fixed barrel cleaning brush body 50 is separated from the inner circumferential surface and the bottom surface of the outer fixing cylinder 20 on the outer circumferential surface and the bottom surface. It is possible to install, the inner rotary sieve mesh 40 is formed with a plurality of water discharge holes 42 on the outer peripheral surface and the bottom surface;
A main vertical rod (71), the upper portion of which is detachably fastened to a lower central region of the blocking cap (60) seated on the outer fixing cylinder (20); Main horizontal rods 71 of a plurality of horizontal rods 72 which are separated and alternately fastened horizontally by maintaining the same distance and length on the outer circumferential surface of the upper and lower portions, and fixed to the end of the horizontal rods 72 of the inner rotary mantle 40 An inner circumferential surface washing body 74 composed of a body washing brush 73 positioned proximate to the inner circumferential surface; Internal rotating strainer is fixed to the end of the inclined bar 75 and the lower inclined bar 76 and the inclined bar 75 and the lower inclined bar 76 detachably fastened to the lower and lower ends of the main vertical bar (71) Consists of a bottom washing body 78 consisting of a bottom washing brush 77 located close to the bottom surface of the barrel 40,
A brush member 70 for removing foreign substances generated on the inner circumferential surface and the bottom surface of the inner rotary sieve mesh 40;
The hot water supplied by the high pressure tank (82) and the high pressure valve (83) fixed to the lower end of the outer fixed cylinder (20) and mounted on the lower side of the motor case (81) on which the rotating motor (30) is mounted is an external height. Foreign matter washing means (80) for washing the foreign substances generated on the outer circumferential surface of the inner rotative filter mesh (40) and the inner circumferential surface of the outer fixed cylinder (20) by high-pressure spraying into the inner rotary filter mesh (40) region of the inner tube (20); And
Control means (130) for controlling the operation of the rotary motor (30) and the high pressure valve (83);
Automatic sink drain drain characterized in that configured to include. According to claim 1, wherein the fixed barrel cleaning brush (50)
A plurality of assembling through holes 52 formed on an outer circumferential surface, a corner, and a bottom surface of the inner rotary sieve mesh 40;
The body 53 is coupled to protrude outwardly to the assembly through-hole 52, the body 53 has a plurality of locking projections (53a) formed on the outer circumferential surface, the head in close contact with the inner rotary filter mesh 40 of the outer periphery of the assembly through-hole (52) A fastening spacer 55 made of 54;
Sink drainage automatic cleaning device, characterized in that consisting of a washing brush (57) fixed to the end of the body (53) of the fastening spacer (55) located close to the inner circumferential surface, the corners and the bottom surface of the outer fixing barrel (20). delete According to claim 1, wherein the foreign matter cleaning means 80
A high pressure tank 82 and a high pressure valve 83 mounted at a lower end of the motor case 81 to discharge hot water stored at a high pressure by being connected to a hot water line 84;
A hot water supply line 85 piped to an outer bottom surface and an outer circumferential region of the high pressure tank 82, the high pressure valve 83, and the outer fixing cylinder 20;
Removably fastened to the upper and lower portions of the hot water supply line 85, the end is coupled through the outer circumferential surface and the bottom surface of the outer fixed cylinder 20 of the inner circumferential surface and bottom surface area of the inner rotary sieve mesh 40 Sink drain outlet automatic washing device, characterized in that consisting of a plurality of hot water injection port (86) for injecting hot water into the water discharge hole (42). The method of claim 4, wherein the water discharge hole 42
Sink drainage automatic washing device, characterized in that the diameter of the inner circumferential mesh and the inner circumferential surface and the bottom surface area to facilitate the introduction of hot water is easy to flow into the inner rotary strain mesh (40). According to claim 2, wherein the fixed barrel cleaning brush (50)
A plurality of outer horizontal rods 90 which are detachably fastened horizontally by maintaining equal intervals on the outer circumferential surface of the inner rotary sieve mesh 40;
A body brush (91) fixed to an end of the outer horizontal rod (90) and positioned to be close to an inner circumferential surface of the outer fixing cylinder (20);
An outer inclined rod 92 and an outer lower end rod 93 which are detachably fastened to the bottom edge outer circumferential surface and the bottom surface of the inner rotary strain net 40;
The sink is characterized in that it is fixed to the end of the outer inclined rod 92 and the outer lower rod 93, the bottom surface brush 94 is located in close proximity to the bottom edge and the bottom surface of the outer fixing cylinder (20) Drain automatic cleaning device.

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