CN211985303U - Rat-proof bottom cover structure of water tank cleaning machine - Google Patents

Abstract

The utility model relates to a basin cleaning machine's protection against rodents bottom structure and dismouting method, the first lid of protection against rodents bottom structure, second lid, third lid, first lid, second lid, third lid enclose synthetic relative confined inner chamber jointly with the basin bottom, the bottom of second lid and third lid links up the department and is formed with the opening that supplies the delivery outlet of traction valve to expose. The utility model arranges the rat-proof bottom cover at the bottom of the water tank into a first cover body, a second cover body and a third cover body which can be spliced with each other, wherein, the first cover body can be fixed at the bottom of the water tank all the time, the second cover body and the third cover body respectively correspond to different functional pieces, and the three cover body structures are matched with each other reasonably, thus effectively avoiding the entering of rats; when different functional parts are maintained, all the cover bodies do not need to be detached, and the second cover body and/or the third cover body can be detached independently, so that the functional parts in different areas can be maintained quickly and conveniently.

Description

Rat-proof bottom cover structure of water tank cleaning machine

Technical Field

The utility model relates to a basin cleaning machine's protection against rodents bottom structure.

Background

A dishwasher is an apparatus that sprays cold or hot water to a dish to remove dirt adhered to the dish and wash the dish. The dishwasher usually needs an independent shell and independent components, so that the common dishwasher is large in volume and not suitable for being used in families with large population and small living area, and the dishwasher is not common in many families.

In order to save space, many designs of water tank type cleaning machines have been developed, that is, an existing water tank is modified into a cleaning machine, the water tank is directly used as a washing space, and a rotary spray arm is generally arranged at the bottom of the water tank and is usually connected with a pump body driven by a motor. For example, chinese patent application No. CN201821329014.8 discloses a tank type cleaning machine structure, in which a motor, a heating plate, an ultrasonic structure, a traction valve, a water inlet valve, etc. are installed at the bottom.

In the above structure, the circuit boards of the motor, the heating plate, the ultrasonic structure, etc. need to be installed close to the corresponding functional components, and the circuit boards are generally installed at the bottom of the sink body, so that the power lines between the functional components and the circuit boards are exposed below the sink. Fig. 1 shows a structure of a sink type washer equipped with various functions, in which a motor a is installed at a central position of a bottom of a water tank 100, a heating pan b is installed at one side of the motor a and is disposed near a first corner 101 of the water tank 100, a drawing valve c is disposed near the motor a, the heating pan b and a second corner 102 of the water tank 100, but a large distance is also present between the drawing valve c and the second corner 102, an inlet valve d is provided at the second corner 102 of the water tank 100 and is located at an outer side of the drawing valve c, the second corner 102 is disposed adjacent to the first corner 101, a water tank edge between the first corner 101 and the second corner 102 is a first edge 103, an ultrasonic wave structure e is provided at the bottom of the water tank 100 and is disposed near a second edge 104 disposed opposite to the first edge 103, the bottom of the water tank 100 is provided with an appliance box f extending vertically and having an outer side disposed near the second edge 104 of the water, the electrical box f is used for installing circuit boards of all functional parts, and the electrical box f has a large height in the vertical direction. In the kitchen environment, often can have the mouse of stinging bad power cord easily, for protection against rodents, the bottom of basin body generally can install the protection against rodents bottom, and current protection against rodents bottom structure dismouting is comparatively troublesome, and with the basin bottom between the fit clearance too big, the mouse gets into easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a basin cleaning machine's that the cooperation is reasonable, can effectively avoid the mouse to get into protection against rodents bottom structure.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a basin cleaning machine's protection against rodents bottom structure which characterized in that:

under the bottom of the water tank are arranged:

a first cover body, wherein the top edge of the first cover body is restrained at the bottom edge of the water tank, the first cover body is provided with a main body part vertically arranged corresponding to the first edge of the bottom of the water tank and an extension part vertically arranged corresponding to the third edge of the bottom of the water tank adjacent to the first edge, and the height of the extension part is less than that of the main body part so as to form a mounting space below the extension part;

the second cover body is provided with a main body part with an L-shaped cross section, the L-shaped main body part is arranged in the installation space, the top of the L-shaped main body part is connected with the extension part, and the bottom of the L-shaped main body part is connected with the main body part of the first cover body; and

the third cover body is arranged at the bottom of the water tank, the top edge of the third cover body is connected with the bottom edge of the water tank, so that the third cover body, the first cover body and the second cover body are jointly spliced to form a relatively closed inner cavity, a local part of the bottom wall of the third cover body is recessed to form an accommodating cavity for accommodating an electric appliance box, and an opening is formed at the joint of the bottom of the third cover body and the bottom of the second cover body and used for exposing an output port of the traction valve.

The utility model discloses the main part of first lid is arranged perpendicularly with the extension, but also need reserve the space of installation water intaking valve in the first corner of bottom of the basin, and the structure that leads to first lid in the bottom of the basin is more unique, adopts above-mentioned second lid structure, not only is convenient for make the second lid ingenious utilize the installation space of constitution between first lid main part and the extension, but also is convenient for make second lid independent dismantlement of being convenient for to the traction valve that covers the second lid carries out the later stage maintenance.

Preferably, the lower edge of the first cover body part extends towards the direction of the traction valve to form a first folding edge, and the bottom of the L-shaped body part of the second cover body is a first flat plate which can be horizontally butted with the first folding edge. The structure not only facilitates the mutual splicing of the first cover body, the second cover body and the third cover body at the bottom, but also can eliminate the gaps at the splicing positions of the first cover body, the second cover body and the third cover body, and plays a role in rat prevention.

In order to facilitate assembly, a first limiting opening arranged towards the first flat plate is formed in the edge of the first folding edge, and a first limiting strip which can be supported on a first supporting edge of the lower edge of the first folding edge and can vertically extend and be inserted into the first limiting opening is arranged on the edge of the first flat plate close to the first folding edge.

Preferably, the top edge of the L-shaped main body of the second cover extends upward to form a first side plate capable of covering the outer side of the extending portion of the first cover, a second folded edge extending outward is arranged at the edge of the side portion of the first side plate, correspondingly, a third folded edge extending outward is arranged on the outer wall surface of the extending portion of the first cover, and the third folded edge and the second folded edge are fixedly connected through screws. The structure is favorable for improving the compactness of the matching between the top of the second cover body and the first cover body, and simultaneously, the independent installation and the disassembly of the second cover body are convenient to realize.

Preferably, a mounting area for accommodating the water inlet valve is formed at the joint of the main body part and the extending part of the first cover body, the water inlet valve is arranged on the outer side of the first cover body, and a first notch for enabling an electric connection end of the water inlet valve to extend into the inner side of the first cover body is formed at the joint of the main body part and the extending part of the first cover body. The edge of the main body part of the first cover body, which is close to the installation area, is provided with an assembly plate which can be coated on the outer side wall of the water inlet valve, and an installation plate which can be arranged around the periphery of the water inlet valve so as to enable the installation area to be relatively closed is connected between the assembly plate and the edge of the extension part. The water inlet valve is independently arranged outside the first cover body, so that the water inlet valve is convenient to maintain and connected with a water path, and the electric connection end of the water inlet valve is protected by the first cover body, so that mice are prevented from being bitten, and the safety is improved.

In each of the above solutions, the upper portion of the third cover body is formed into a U-shaped structure with an opening facing the main body portion of the first cover body, the top edge of the U-shaped structure is respectively butted with the corresponding edge of the bottom of the water tank, the bottom of the U-shaped structure is provided with a second flat plate which can be horizontally butted with the bottoms of the first cover body and the second cover body, and a second notch for accommodating the bottom structure of the second cover body is formed on the second flat plate corresponding to the second cover body. This structure is convenient for realize with the concatenation at first lid, second lid bottom edge and improve the compactedness, carries out rational utilization to the space of basin bottom moreover, does not occupy too much space, also is convenient for independently install and dismantle the third lid.

In order to facilitate assembly, the first cover body is respectively provided with slots at two edges corresponding to the U-shaped structure of the third cover body, and correspondingly, the edges of two side parts of the U-shaped structure of the third cover body are respectively provided with inserting pieces which are inserted and matched with the slots. A first slot is formed in the side part of the extending part of the first cover body, and correspondingly, a first inserting piece capable of being inserted and connected with the first slot is arranged at the first side edge of the U-shaped structure of the third cover body; the outer edge of the first cover body main body part extends to the first edge along the first corner at the bottom of the water tank to form an extending edge which is arranged corresponding to the second side edge of the third cover body U-shaped structure, a second slot is formed in the extending edge, and correspondingly, a second inserting piece which can be inserted and connected with the second slot is arranged at the second side edge of the third cover body U-shaped structure.

In order to facilitate assembly, the lower edge of the first cover body main body part extends towards the direction of the traction valve to form a first folding edge, the middle of the first folding edge is provided with a socket, and correspondingly, the edge of the second flat plate is convexly provided with an inserting part which can be inserted and connected with the socket. The inner side of the first folded edge is provided with a third slot, and correspondingly, the side walls of the second flat plate at two sides of the inserting part are respectively provided with a third inserting piece which can be inserted and connected with the third slot.

In order to facilitate the disassembly and the assembly, the top edge of the first cover body main part is provided with a first assembling part which extends upwards close to the side part of the water tank, and the first assembling part is connected with the water tank in a locking way through a screw; the top edge of the extending part of the first cover body is provided with a second assembling part which is extended upwards and is close to the side part of the water tank, and the second assembling part is in locking connection with the water tank through a screw. And a third assembly part extending downwards close to the inner wall of the third cover body is arranged at the third edge of the bottom of the water tank, and the third assembly part is in locking connection with the top edge of the third cover body through a screw.

In each of the above schemes, the rat-proof bottom cover structure further includes a wiring box capable of protecting the power line introduced into the inner cavity, a part of the wiring box is located outside the water tank, a third notch for the wiring box to pass through is formed at the top of the extending part of the first cover body, and the other part of the wiring box passes through the third notch and extends towards the electrical box. The structure can prevent the power line outside the rat-proof bottom cover from being bitten by rats.

Preferably, a water outlet for outputting accumulated water is formed in the position, corresponding to the electric appliance box, of the bottom wall of the third cover body, and a rat-proof net covers the water outlet.

Compared with the prior art, the utility model has the advantages of: the utility model arranges the rat-proof bottom cover at the bottom of the water tank into a first cover body, a second cover body and a third cover body which can be spliced with each other, wherein, the first cover body can be fixed at the bottom of the water tank all the time, the second cover body and the third cover body respectively correspond to different functional pieces, and the three cover body structures are matched with each other reasonably, thus effectively avoiding the entering of rats; when different functional parts are maintained, all the cover bodies do not need to be detached, and the second cover body and/or the third cover body can be detached independently, so that the functional parts in different areas can be maintained quickly and conveniently.

Drawings

FIG. 1 is a schematic structural diagram of the background art of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 from another angle;

fig. 4 is a schematic structural view of the embodiment of the present invention in which only the first cover is installed;

fig. 5 is a schematic structural view of the embodiment of the present invention, in which only the first cover and the second cover are installed;

fig. 6 is a schematic structural view of the embodiment of the present invention, in which only the first cover and the third cover are installed;

fig. 7 is a schematic structural diagram of the first cover in the embodiment of the present invention;

fig. 8 is a schematic structural view of a second cover in an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a third cover in an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 2 to 9, the ratproof bottom cover structure of the water tank cleaning machine of the present embodiment includes a first cover 1, a second cover 2 and a third cover 3.

As shown in fig. 4 and 7, the top edge of the first cover 1 is constrained at the edge of the bottom of the water tank 100, the first cover 1 has a first main portion 11 corresponding to the first edge 103 of the bottom of the water tank 100 and an extending portion 12 substantially perpendicular to the first main portion 11, the extending portion 12 is constrained at a third edge 105 of the bottom of the water tank 100, which is engaged with the first edge 103.

As shown in fig. 5 and 8, the second cover 2 is disposed below the third edge 105 of the bottom of the sink 100 and is disposed corresponding to the extending portion 12 of the first cover 1, the lower edge of the second cover 2 is connected to the corresponding edge of the first main body 11 of the first cover 1, and the upper edge of the second cover 2 is connected to the corresponding edge of the extending portion 12 of the first cover 1 in a detachable manner.

As shown in fig. 6 and 9, the third cover 3 is disposed at the bottom of the water tank 100 and has a receiving cavity 30 for receiving the electrical box f therein, the top edge of the third cover 3 is detachably connected to the bottom edge of the water tank 100, and the lower portion of the third cover 3 is connected to the adjacent edges of the first cover 1 and the second cover 2.

In this embodiment, the first cover 1, the second cover 2, the third cover 3 and the bottom of the water tank 100 together enclose a relatively closed inner cavity, and an opening 10 for exposing the output port c1 of the traction valve c is formed at the joint of the bottoms of the second cover 2 and the third cover 3. That is, after the first cover 1, the second cover 2 and the third cover 3 are completely installed, the bottom of the sink 100 can be completely covered, and there is no gap for the mouse to enter.

In this embodiment, the second cover 2 has a second body portion 21 with an L-shaped cross section, the extension portion 12 of the first cover 1 is vertically shorter than the first body portion 11 thereof so as to form an installation space 13 below the extension portion 12 for accommodating the second L-shaped second body portion 21 of the second cover, the bottom of the second L-shaped second body portion 21 of the second cover is connected with the first body portion 11 of the first cover 1, and the top of the second L-shaped second body portion 21 of the second cover is connected with the extension portion 12 of the first cover 1. The joint of the first main body 11 and the extension 12 of the first cover 1 forms a mounting area 14 for accommodating a water inlet valve d, the water inlet valve d is disposed on the outer side of the first cover 1, and the joint of the first main body 11 and the extension 12 of the first cover 1 is provided with a first notch 15 for the electrical connection end of the water inlet valve d to extend into the inner side of the first cover 1. The first body part 11 of the first cover body 1 is provided with a mounting plate 112 at the edge near the mounting area 14, which can be covered on the outer side wall of the inlet valve d, and a mounting plate 4 which can be arranged around the periphery of the inlet valve d so as to relatively close the mounting area 14 is connected between the mounting plate 112 and the edge of the extension part 12 by screws. The water inlet valve d is independently arranged outside the first cover body 1, so that the water inlet valve d is convenient to maintain and connected with a water path, and the electric connection end of the water inlet valve d is protected by the first cover body 1, so that mice are prevented from being bitten, and the safety is improved. In this embodiment, the first main body 11 of the first cover body 1 is perpendicular to the extending portion 12, but a space for installing the water inlet valve d needs to be reserved at the first corner 101 of the bottom of the water tank 100, so that the structure of the first cover body 1 at the bottom of the water tank 100 is unique, and by adopting the structure of the second cover body 2, the second cover body 2 can not only make ingenious use of the installation space formed between the first main body 11 of the first cover body 1 and the extending portion 12, but also make the second cover body 2 convenient to be detached independently, so as to perform later maintenance on the traction valve c covered by the second cover body 2.

As shown in fig. 4 and 5, in this embodiment, the lower edge of the first main body 11 of the first cover 1 extends toward the direction of the traction valve c to form a first folding edge 17, and the bottom of the L-shaped second main body 21 of the second cover is a first flat plate 22 which can be horizontally abutted with the first folding edge 17. The structure not only facilitates the mutual splicing of the first cover body 1, the second cover body 2 and the third cover body 3 at the bottom, but also can eliminate the gaps at the splicing positions of the first cover body 1, the second cover body 2 and the third cover body 3, and plays a role in rat prevention. For the convenience of assembly, a first limiting opening 171 arranged towards the first flat plate 22 is formed at the edge of the first folding edge 17, and a first supporting edge 221 capable of supporting the lower edge of the first folding edge 17 and a first limiting strip 222 extending vertically and capable of being inserted into the first limiting opening 171 are arranged at the edge of the first flat plate 22 close to the first folding edge 17. The top edge of the L-shaped second body portion 21 of the second cover body extends upwards to form a first side plate 23 capable of covering the outer side of the extension portion 12 of the first cover body 1, a second folded edge 24 extending outwards is arranged at the edge of the side portion of the first side plate 23, correspondingly, a third folded edge 18 extending outwards is arranged on the outer wall surface of the extension portion 12 of the first cover body 1, and the third folded edge 18 and the second folded edge 24 are fixedly connected through screws.

As shown in fig. 5 and 6, the upper portion of the third cover body 3 of the present embodiment is formed as a U-shaped structure 300 with an opening facing the first main body 11 of the first cover body 1, the top edges of the U-shaped structure 300 are respectively butted with the corresponding edges of the bottom of the sink 100, the bottom of the U-shaped structure 300 is provided with a second plate 31 capable of horizontally butting with the bottoms of the first cover body 1 and the second cover body 2, and the second plate 31 is provided with a second notch 311 corresponding to the second cover body 2 for accommodating the bottom structure of the second cover body 2. This structure is convenient for realize with the concatenation of first lid 1, 2 bottom edges of second lid and improve the compactness, carries out rational utilization to the space of basin bottom moreover, does not occupy too much space, also is convenient for independently install and dismantle third lid 3. In order to facilitate assembly, the first cover body 1 is provided with slots at two edges corresponding to the U-shaped structure 300 of the third cover body, and correspondingly, the edges of two side portions of the U-shaped structure 300 of the third cover body are provided with inserting pieces respectively, which are inserted into the slots. A first slot 191 is formed in the side part of the extending part 12 of the first cover body 1, and correspondingly, a first inserting piece 32 capable of being inserted and connected with the first slot 191 is arranged at the first side edge 301 of the U-shaped structure 300 of the third cover body; the outer edge of the first main body 11 of the first cover 1 extends to the first edge 103 along the first corner 101 of the bottom of the sink 100 to form an extending edge 19 corresponding to the second side 302 of the third cover U-shaped structure 300, the extending edge 19 is provided with a second slot 192, and correspondingly, the second side 302 of the third cover U-shaped structure 300 is provided with a second inserting piece 33 capable of being inserted into and connected with the second slot 192. The middle of the first folding edge 17 is provided with a socket 172 corresponding to the second plate 31, and correspondingly, the edge of the second plate 31 is convexly provided with an insertion part 313 capable of being inserted and connected with the socket 172. The inner side of the first folding edge 17 is provided with a third slot 173, and correspondingly, the side walls of the second plate 31 at the two sides of the inserting portion 313 are respectively provided with a third inserting piece 312 capable of being inserted and connected with the third slot 173.

The bottom wall of the U-shaped structure 300 is lower than the second flat plate 31, a water outlet 303 for draining accumulated water is formed in the bottom wall of the U-shaped structure 300, and a rat-proof net 304 covers the water outlet 303.

As shown in fig. 2 and 3, for easy assembly and disassembly, the top edge of the first main body 11 of the first cover 1 has a first assembling portion 111 extending upwards near the side of the sink 100, and the first assembling portion 111 is connected with the side wall of the sink 100 by screw locking; the top edge of the extended portion 12 of the first cover body 1 has a second fitting portion 121 extended upward adjacent to the side of the water tub 100, and the second fitting portion 121 is screw-lockingly coupled to the water tub 100. The bottom of the sink 100 has a third edge 105 with a third mounting portion 106 extending downward adjacent to the inner wall of the third cover 3, and the third mounting portion 106 is fastened to the top edge of the third cover 3 by screws.

The rat-proof bottom cover structure further comprises a wire box 5 capable of protecting a power line introduced into the inner cavity, wherein the wire box 5 is partially positioned outside the water tank 100, a third notch 122 for the wire box 5 to pass through is formed in the top of the extending portion 12 of the first cover body 1, the other portion of the wire box 5 passes through the third notch 122 and extends towards the direction f of the electrical appliance box, and the rat-proof bottom cover structure can prevent the power line outside the rat-proof bottom cover from being bitten by a rat.

The dismounting method of the rat-proof bottom cover structure of the water tank cleaning machine comprises the following steps:

during installation:

firstly, fixing the top edge of the first main body part 11 of the first cover body 1 at the first edge 103 of the bottom of the water tank 100 through screws, and fixing the top edge of the extension part 12 of the first cover body 1 at the third edge 105 of the bottom of the water tank 100 through screws;

then, the second cover 2 is placed under the extension portion 12 of the first cover 1, so that the edge of the side portion of the second cover 2 is matched with the edge of the side portion of the first main body portion 11 of the first cover 1, the edge of the first flat plate 22 at the bottom of the second cover 2 is matched with the edge of the first folded edge 17 of the first cover 1, the first limit strip 222 of the second cover 2 is inserted into the first limit opening 171 of the first folded edge 17 at the bottom of the first cover 1, and the third folded edge 18 at the outer side of the extension portion 12 of the first cover 1 is locked and connected with the second folded edge 24 at the side portion of the second cover 2 by screws;

finally, the accommodating cavity 30 of the third cover 3 is correspondingly buckled outside the electrical box f at the bottom of the water tank 100, the third cover 3 is pushed towards the first cover 1 and the second cover 2 until the lower edge of the third cover 3 is respectively matched with the adjacent edge of the first cover 1 and the adjacent edge of the second cover 2, the first insertion piece 32 of the third cover 3 is inserted into the first insertion slot 191 of the first cover 1, the second insertion piece 33 of the third cover 3 is inserted into the second insertion slot 192 of the first cover 1, the insertion part 313 of the third cover 3 is inserted into the insertion slot 172 of the first cover 1, the third insertion piece 312 of the third cover 3 is inserted into the third insertion slot 173 of the first cover 1, and the top edge of the third cover 1 is locked and connected with the third assembling part 106 at the bottom of the water tank 100 by screws.

When the disassembly is carried out:

the first cover body 1 is fixed, if the motor a, the heating plate b, the ultrasonic structure e and a circuit board on the electrical box f need to be maintained, the top edge of the third cover body 3 is taken down to be connected with a screw at the bottom edge of the water tank 100, and only the third cover body 3 is taken down;

if the traction valve c needs to be repaired, the third cover body 3 and/or the second cover body 2 are/is only needed to be removed, the screws on the upper edge of the second cover body 2 and the outer edge of the extending part 12 of the first cover body 1 are removed, and the second cover body 2 can be removed.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims (16)

1. The utility model provides a basin cleaning machine's protection against rodents bottom structure which characterized in that:

under the bottom of the water tank (100) are provided:

a first cover (1) constrained at its top edge to the bottom edge of the tank (100), said first cover (1) having a first main portion (11) arranged vertically in correspondence of a first bottom edge (103) of the tank (100) and an extension portion (12) arranged vertically in correspondence of a third bottom edge (105) of the tank (100) adjacent to said first edge (103), and the height of said extension portion (12) being smaller than the height of the first main portion (11) so as to form a mounting space (13) below the extension portion (12);

a second cover body (2) having a second body portion (21) with an L-shaped cross section, the L-shaped second body portion (21) being provided in the mounting space (13) and having a top portion connected to the extension portion (12) and a bottom portion connected to the first body portion (11) of the first cover body (1); and

the third cover body (3) is arranged at the bottom of the water tank (100), the top edge of the third cover body is connected with the bottom edge of the water tank (100) to be jointly spliced with the first cover body (1) and the second cover body (2) to form a relatively closed inner cavity, a local part of the bottom wall of the third cover body (3) is recessed to form an accommodating cavity (30) for accommodating an electric appliance box (f), and an opening (10) is formed at the joint of the bottom of the third cover body (3) and the bottom of the second cover body (2) and used for exposing an output port (c1) of the traction valve (c) from the opening.

2. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 1, wherein: the lower edge of a first main body part (11) of the first cover body (1) extends towards the direction of the traction valve (c) to form a first folding edge (17), and the bottom of an L-shaped second main body part (21) of the second cover body is a first flat plate (22) which can be horizontally butted with the first folding edge (17).

3. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 2, wherein: the edge of the first folded edge (17) is provided with a first limiting opening (171) which is arranged towards the first flat plate (22), and the edge of the first flat plate (22) close to the first folded edge (17) is provided with a first supporting edge (221) which can be supported on the lower edge of the first folded edge (17) and a first limiting strip (222) which vertically extends and can be inserted into the first limiting opening (171).

4. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 1, wherein: the top edge of the L-shaped second main body part (21) of the second cover body extends upwards to form a first side plate (23) capable of covering the outer side of the extending part (12) of the first cover body (1), a second folded edge (24) extending outwards is arranged at the edge of the side part of the first side plate (23), correspondingly, a third folded edge (18) extending outwards is arranged on the outer wall surface of the extending part (12) of the first cover body (1), and the third folded edge (18) is fixedly connected with the second folded edge (24) through screws.

5. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 1, wherein: a mounting area (14) for accommodating a water inlet valve (d) is formed at the joint of the first main body part (11) and the extension part (12) of the first cover body (1), the water inlet valve (d) is arranged on the outer side of the first cover body (1), and a first notch (15) for enabling an electric connection end of the water inlet valve (d) to extend into the inner side of the first cover body (1) is formed at the joint of the first main body part (11) and the extension part (12) of the first cover body (1).

6. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 5, wherein: the edge of the first main body part (11) of the first cover body (1) close to the installation area (14) is provided with an assembly plate (112) capable of covering the outer side wall of the water inlet valve (d), and an installation plate (4) capable of enclosing the periphery of the water inlet valve (d) so as to enable the installation area (14) to be relatively closed is connected between the assembly plate (112) and the edge of the extension part (12).

7. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 1, wherein: the upper portion of the third cover body (3) is formed into a U-shaped structure (300) with an opening arranged towards the first main body portion (11) of the first cover body (1), the top edge of the U-shaped structure (300) is respectively butted with the corresponding edge of the bottom of the water tank (100), a second flat plate (31) capable of being horizontally butted with the bottoms of the first cover body (1) and the second cover body (2) is arranged at the bottom of the U-shaped structure (300), and a second notch (311) used for accommodating the bottom structure of the second cover body (2) is formed in the position, corresponding to the second cover body (2), of the second flat plate (31).

8. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 7, wherein: slots are respectively formed in the positions, corresponding to the two edges of the U-shaped structure (300) of the third cover body (3), of the first cover body (1), correspondingly, inserting pieces which are matched with the slots in an inserting mode are respectively arranged at the edges of the two sides of the U-shaped structure (300) of the third cover body (3).

9. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 8, wherein: the side part of the extending part (12) of the first cover body (1) is provided with a first slot (191), correspondingly, a first inserting piece (32) capable of being inserted and connected with the first slot (191) is arranged at the first side edge (301) of the U-shaped structure (300) of the third cover body.

10. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 8, wherein: the outer edge of the first main body part (11) of the first cover body (1) extends to the first edge (103) along the first corner (101) at the bottom of the water tank (100) to form an extending edge (19) arranged corresponding to the second side (302) of the third cover body U-shaped structure (300), a second slot (192) is formed in the extending edge (19), correspondingly, a second inserting piece (33) capable of being inserted and connected with the second slot (192) is arranged at the second side (302) of the third cover body U-shaped structure (300).

11. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 7, wherein: the lower edge of the first main body part (11) of the first cover body (1) extends towards the direction of the traction valve (c) to form a first folding edge (17), a socket (172) is formed in the middle of the first folding edge (17), and correspondingly, an insertion part (313) which can be inserted and connected with the socket (172) is convexly arranged on the edge of the second flat plate (31).

12. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 11, wherein: the inner side of the first folding edge (17) is provided with a third slot (173), correspondingly, the side walls of the second flat plate (31) at two sides of the insertion part (313) are respectively provided with a third insertion piece (312) which can be inserted and connected with the third slot (173).

13. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 1, wherein: the top edge of the first main body part (11) of the first cover body (1) is provided with a first assembling part (111) which extends upwards close to the side part of the water tank, and the first assembling part (111) is in locking connection with the water tank (100) through a screw; the top edge of the extending part (12) of the first cover body (1) is provided with a second assembling part (121) which extends upwards close to the side part of the water tank (100), and the second assembling part (121) is connected with the water tank (100) in a locking mode through screws.

14. The structure of a ratproof bottom cover for a sink cleaning machine according to claim 1, wherein: and a third assembling part (106) extending downwards close to the inner wall of the third cover body (3) is arranged at a third edge (105) at the bottom of the water tank (100), and the third assembling part (106) is in locking connection with the top edge of the third cover body (3) through screws.

15. The structure of a cover for a ratproof bottom of a sink cleaning machine according to any one of claims 1-4, wherein: the water tank is characterized by further comprising a wiring box (5) capable of protecting a power line led into the inner cavity, wherein the part of the wiring box (5) is located outside the water tank (100), a third notch (122) for the wiring box (5) to pass through is formed in the top of the extending portion (12) of the first cover body (1), and the other part of the wiring box (5) passes through the third notch (122) and extends towards the direction of the electrical appliance box (f).

16. The structure of a cover for a ratproof bottom of a sink cleaning machine according to any one of claims 1-4, wherein: a water outlet (303) for outputting accumulated water is formed in the position, corresponding to the electric appliance box (f), of the bottom wall of the third cover body (3), and a rat-proof net (304) covers the water outlet (303).

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