A rat-proof bottom cover structure and disassembly method of a sink cleaning machine

Abstract

The present invention relates to a rat-proof bottom cover structure and a disassembly method of a sink cleaning machine. The rat-proof bottom cover structure comprises a first cover body, a second cover body, and a third cover body. The first cover body, the second cover body, the third cover body and the bottom of the sink together enclose a relatively closed inner cavity. An opening is formed at the bottom joint of the second cover body and the third cover body for exposing the output port of the traction valve. The present invention sets the rat-proof bottom cover at the bottom of the sink as a first cover body, a second cover body and a third cover body that can be spliced ​​with each other, wherein the first cover body can always be fixed at the bottom of the sink, the second cover body and the third cover body correspond to different functional parts respectively, and the three cover body structures cooperate with each other reasonably, which can effectively prevent mice from entering; when repairing different functional parts, there is no need to remove all the covers, and the second cover body and / or the third cover body can be removed independently, so that the functional parts in different areas can be repaired quickly and conveniently.

Description

Technical Field

[0001] The invention relates to a rat-proof bottom cover structure of a water tank cleaning machine and a disassembly and assembly method. Background Art

[0002] A dishwasher is a device that sprays cold or hot water onto dishes to remove dirt adhering to the dishes and clean the dishes. Dishwashers usually require their own independent housing and independent components, so general dishwashers are large in size and are not suitable for use in some families with a large population and a small per capita living area. Therefore, in many families, dishwashers are not very common.

[0003] In order to save space, many sink-type cleaning machine designs have emerged, that is, the existing sink is converted into a cleaning machine, and the sink is directly used as the washing space. Generally, a rotating spray arm is set at the bottom of the sink, and the rotating spray arm is usually connected to a pump body driven by a motor. For example, the Chinese patent application number CN201821329014.8 discloses a sink-type cleaning machine structure, the bottom of which is equipped with a motor, a heating plate, an ultrasonic structure, a traction valve, and a water inlet valve.

[0004] In the above structure, the circuit boards of the motor, heating plate, ultrasonic structure, etc. need to be installed close to the corresponding functional parts. Generally, the circuit boards are installed at the bottom of the sink body, so that the power lines between the functional parts and the circuit boards are exposed under the sink. Figure 1 The invention shows a structure of a water tank cleaning machine equipped with various functional parts, wherein a motor a is installed at the central position of the bottom of the water tank 100, a heating plate b is installed on one side of the motor a and arranged near the first corner 101 of the water tank 100, a traction valve c is arranged near the motor a, the heating plate b and the second corner 102 of the water tank 100, but there is still a large distance between the traction valve c and the second corner 102, a water inlet valve d is arranged at the second corner 102 of the water tank 100 and is located on the outside of the traction valve c, the second corner 102 is arranged adjacent to the first corner 101, the edge of the water tank between the first corner 101 and the second corner 102 is the first edge 103, an ultrasonic structure e is arranged at the bottom of the water tank 100 and near the second edge 104 arranged opposite to the first edge 103, and an electrical box f is provided at the bottom of the water tank 100, which extends vertically and is arranged near the second edge 104 of the water tank on the outside, the electrical box f is used to install the circuit boards of various functional parts, and the electrical box f has a large height in the vertical direction. In the kitchen environment, there are often rats that easily bite the power cord. In order to prevent rats, a rat-proof bottom cover is generally installed at the bottom of the sink body. The existing rat-proof bottom cover structure is difficult to disassemble and assemble, and the gap between the bottom of the sink is too large, which makes it easy for rats to enter. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a rat-proof bottom cover structure of a sink cleaning machine which is reasonably matched and can effectively prevent rats from entering, in view of the current status of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a method for disassembling and assembling the rat-proof bottom cover structure of the above-mentioned sink cleaning machine in view of the current status of the prior art. This method can quickly and conveniently disassemble and assemble the rat-proof bottom cover structure partially or as a whole, thereby facilitating the maintenance of functional components in different areas.

[0007] The technical solution adopted by the present invention to solve at least one of the above technical problems is:

[0008] A rat-proof bottom cover structure for a sink cleaning machine, characterized in that:

[0009] Below the bottom of the sink are:

[0010] A first cover body, the top edge of which is constrained at the bottom edge of the sink, the first cover body having a main body portion vertically arranged corresponding to the first edge of the bottom of the sink and an extension portion vertically arranged corresponding to the third edge of the bottom of the sink adjacent to the first edge, and the height of the extension portion is less than the height of the main body portion so as to form an installation space below the extension portion;

[0011] a second cover body having a main body portion with an L-shaped cross section, the L-shaped main body portion being disposed in the installation space and having a top connected to the extension portion and a bottom connected to the main body portion of the first cover body; and

[0012] The third cover body is arranged at the bottom of the sink and the top edge is connected to the bottom edge of the sink, so as to be spliced ​​with the first cover body and the second cover body to form a relatively closed inner cavity. The local concave bottom wall of the third cover body forms a receiving cavity for accommodating the electrical box. The bottom connection between the third cover body and the second cover body forms an opening for the output port of the traction valve to be exposed therefrom.

[0013] The main body of the first cover body of the present invention is arranged vertically with the extension part, but it is necessary to reserve space for installing the water inlet valve at the first corner of the bottom of the sink, resulting in a relatively unique structure of the first cover body at the bottom of the sink. The above-mentioned second cover body structure is adopted, which not only makes it convenient for the second cover body to cleverly utilize the installation space formed between the main body of the first cover body and the extension part, but also makes it convenient for the second cover body to be independently disassembled so as to carry out later maintenance of the traction valve covered by the second cover body.

[0014] Preferably, the lower edge of the main body of the first cover extends toward the traction valve to form a first folded edge, and the bottom of the L-shaped main body of the second cover is a first flat plate that can be horizontally connected to the first folded edge. This structure not only facilitates the jointing of the first cover with the second cover and the third cover at the bottom, but also eliminates the gap at the joint of the first cover, the second cover and the third cover, thereby playing a role in preventing rats.

[0015] To facilitate assembly, a first limiting opening arranged toward the first flat plate is opened at the edge of the first folded edge, and the first flat plate is provided with a first supporting edge that can be supported on the lower edge of the first folded edge and a first limiting strip that extends vertically and can be inserted into the first limiting opening at the edge close to the first folded edge.

[0016] Preferably, the top edge of the L-shaped main body of the second cover extends upward to form a first side plate that can cover the outside of the first cover extension, and the side edge of the first side plate is provided with a second folded edge extending outward, and correspondingly, the outer wall surface of the first cover extension is provided with a third folded edge extending outward, and the third folded edge is fixedly connected to the second folded edge by screws. This structure is conducive to improving the compactness of the cooperation between the top of the second cover and the first cover, and is convenient for realizing the independent installation and removal of the second cover.

[0017] Preferably, the main body of the first cover body and the extension part form an installation area for accommodating the water inlet valve at the junction, and the water inlet valve is arranged on the outside of the first cover body. The junction of the main body of the first cover body and the extension part is provided with a first notch for the electrical connection end of the water inlet valve to extend into the inside of the first cover body. The main body of the first cover body is provided with an assembly plate that can cover the outer wall of the water inlet valve at the edge near the installation area, and the assembly plate and the edge of the extension part are connected to a mounting plate that can be arranged around the outer periphery of the water inlet valve so as to make the installation area relatively closed. The water inlet valve is independently arranged outside the first cover body, which is convenient for its maintenance and waterway connection, and its electrical connection end is protected by the first cover body to prevent it from being gnawed by mice, thereby improving safety.

[0018] In the above schemes, the upper part of the third cover is formed into a U-shaped structure with an opening toward the main part of the first cover, the top edge of the U-shaped structure is respectively connected with the corresponding edge of the bottom of the sink, and the bottom of the U-shaped structure is provided with a second flat plate that can be horizontally connected with the bottom of the first cover and the second cover, and the second flat plate is provided with a second notch for accommodating the bottom structure of the second cover at the position corresponding to the second cover. This structure facilitates the splicing with the bottom edges of the first cover and the second cover and improves compactness, and makes reasonable use of the space at the bottom of the sink without occupying too much space, and is also convenient for independent installation and removal of the third cover.

[0019] In order to facilitate assembly, the first cover body is provided with slots at the two edges corresponding to the third cover body U-shaped structure, and correspondingly, the two side edges of the third cover body U-shaped structure are provided with plugs that are plugged into the above slots. The side of the extended part of the first cover body is provided with a first slot, and correspondingly, the first side edge of the third cover body U-shaped structure is provided with a first plug that can be plugged into and connected with the first slot; the outer edge of the main part of the first cover body extends along the first corner of the bottom of the water tank to the first edge to form an extended edge arranged corresponding to the second side edge of the third cover body U-shaped structure, and the extended edge is provided with a second slot, and correspondingly, the second side edge of the third cover body U-shaped structure is provided with a second plug that can be plugged into and connected with the second slot.

[0020] In order to facilitate assembly, the lower edge of the main part of the first cover body extends toward the traction valve to form a first folded edge, a socket is provided in the middle of the first folded edge, and correspondingly, a plug-in portion that can be plugged and connected with the socket is protruded from the edge of the second flat plate. A third slot is provided on the inner side of the first folded edge, and correspondingly, a third plug-in piece that can be plugged and connected with the third slot is provided on the side walls located on both sides of the plug-in portion of the second flat plate.

[0021] In order to facilitate disassembly and assembly, the top edge of the main part of the first cover body has a first assembly part extending upward close to the side of the water tank, and the first assembly part is locked and connected to the water tank by screws; the top edge of the extended part of the first cover body has a second assembly part extending upward close to the side of the water tank, and the second assembly part is locked and connected to the water tank by screws. The third edge of the bottom of the water tank has a third assembly part extending downward close to the inner wall of the third cover, and the third assembly part is locked and connected to the top edge of the third cover by screws.

[0022] In the above schemes, the rat-proof bottom cover structure also includes a wiring box that can protect the power line introduced into the inner cavity, and part of the wiring box is located outside the water tank. A third notch for the wiring box to pass through is opened on the top of the extended part of the first cover body, and another part of the wiring box extends toward the electrical box through the third notch. This structure can prevent the power line outside the rat-proof bottom cover from being gnawed by rats.

[0023] Preferably, a water outlet for draining the accumulated water is provided on the bottom wall of the third cover body at a position corresponding to the electrical box, and the water outlet is covered with a rat-proof net.

[0024] A method for disassembling and assembling the rat-proof bottom cover structure of the above-mentioned sink cleaning machine is characterized by:

[0025] During installation, first fix the top edge of the main part of the first cover body to the first edge of the bottom of the sink by screws, and fix the top edge of the extension part of the first cover body to the third edge of the bottom of the sink by screws; then place the second cover body below the extension part of the first cover body, so that the lower edge of the second cover body is aligned with the corresponding edge of the main part of the first cover body, and the upper edge of the second cover body is locked and connected with the outer edge of the extension part of the first cover body by screws; finally, the accommodating cavity of the third cover body is correspondingly buckled outside the electrical box at the bottom of the sink, and the third cover body is pushed toward the first cover body and the second cover body until the lower edge of the third cover body is aligned with the adjacent first cover body edge and second cover body edge respectively to form an inner cavity for exposing only the output port of the traction valve, and the top edge of the third cover body is locked and connected with the second edge of the bottom of the sink by screws;

[0026] During disassembly, the first cover body is fixed. If the motor, heating plate, ultrasonic structure, and circuit board on the electrical box need to be repaired, the screw connection between the top edge of the third cover body and the bottom edge of the sink can be released, and only the third cover body can be removed. If the traction valve needs to be repaired, only the third cover body and / or the second cover body needs to be removed, and the screw connection between the upper edge of the second cover body and the outer edge of the extended part of the first cover body can be released, and the second cover body can be removed.

[0027] Compared with the prior art, the advantages of the present invention are: the present invention arranges the rat-proof bottom cover at the bottom of the sink as a first cover body, a second cover body and a third cover body that can be spliced ​​with each other, wherein the first cover body can always be fixed at the bottom of the sink, the second cover body and the third cover body respectively correspond to different functional parts, and the three cover body structures cooperate with each other reasonably, which can effectively prevent mice from entering; when repairing different functional parts, there is no need to remove all the covers, and the second cover body and / or the third cover body can be removed independently, so that the functional components in different areas can be quickly and conveniently repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the background technology of the present invention;

[0029] Figure 2 It is a structural schematic diagram of an embodiment of the present invention;

[0030] Figure 3 for Figure 2 A schematic diagram of the structure from another angle;

[0031] Figure 4 It is a schematic diagram of a structure in which only the first cover body is installed in an embodiment of the present invention;

[0032] Figure 5 It is a schematic diagram of a structure in which only the first cover body and the second cover body are installed in an embodiment of the present invention;

[0033] Figure 6 It is a schematic diagram of a structure in which only the first cover body and the third cover body are installed in an embodiment of the present invention;

[0034] Figure 7 This is a schematic structural diagram of a first cover body in an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the second cover body in an embodiment of the present invention;

[0036] Fig. 9 Schematic diagram of the structure of the third cover body in the embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below with reference to the accompanying drawings.

[0038] like Figures 2 to 9 As shown, the rat-proof bottom cover structure of the sink cleaning machine of this embodiment includes a first cover body 1 , a second cover body 2 and a third cover body 3 .

[0039] like Figure 4 , 7 As shown, the top edge of the first cover body 1 is constrained at the edge of the bottom of the sink 100, and the first cover body 1 has a main body portion 11 corresponding to the first edge 103 of the bottom of the sink 100 and an extension portion 12 basically perpendicular to the main body portion 11, and the extension portion 12 is constrained at a third edge 105 of the bottom of the sink 100 connected to the first edge 103.

[0040] like Figure 5 , 8 As shown, the second cover body 2 is arranged below the third edge 105 of the bottom of the sink 100 and corresponds to the extension portion 12 of the first cover body 1. The lower edge of the second cover body 2 is aligned with the corresponding edge of the main body 11 of the first cover body 1, and the upper edge of the second cover body 2 is aligned with the corresponding edge of the extension portion 12 of the first cover body 1 and is detachably connected.

[0041] like Figure 6 , 9 As shown, the third cover body 3 is disposed at the bottom of the sink 100 and has a receiving cavity 30 for receiving the electrical box f. The top edge of the third cover body 3 is detachably connected to the bottom edge of the sink 100, and the lower portion of the third cover body 3 is respectively connected to the adjacent edges of the first cover body 1 and the second cover body 2.

[0042] The first cover 1, the second cover 2, the third cover 3 and the bottom of the water tank 100 of this embodiment 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 bottom connection 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 installed, the bottom of the water tank 100 can be completely covered, and there is no gap for mice to enter.

[0043] In this embodiment, the second cover body 2 has a main body portion 21 with an L-shaped cross section. The extension portion 12 of the first cover body 1 is smaller in vertical height than the main body portion 11 thereof, so that an installation space 13 for accommodating the L-shaped main body portion 21 of the second cover body is formed below the extension portion 12. The bottom of the L-shaped main body portion 21 of the second cover body is connected to the main body portion 11 of the first cover body 1, and the top of the L-shaped main body portion 21 of the second cover body is connected to the extension portion 12 of the first cover body 1. The main body portion 11 of the first cover body 1 and the extension portion 12 form an installation area 14 for accommodating the water inlet valve d at the junction. The water inlet valve d is arranged on the outer side of the first cover body 1. The junction between the main body portion 11 of the first cover body 1 and the extension portion 12 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 body 1. The main part 11 of the first cover body 1 is provided with an assembly plate 112 that can cover the outer wall of the water inlet valve d at the edge near the installation area 14, and the assembly plate 112 and the edge of the extension part 12 are screwed to a mounting plate 4 that can be arranged around the outer periphery of the water inlet valve d so that the installation area 14 is relatively closed. The water inlet valve d is independently arranged outside the first cover body 1, which is convenient for its maintenance and waterway connection, and its electrical connection end is protected by the first cover body 1 to prevent rats from gnawing and improve safety. In this embodiment, the main part 11 and the extension part 12 of the first cover body 1 are arranged vertically, but it is necessary to reserve a space for installing the water inlet valve d at the first corner 101 at the bottom of the water tank 100, resulting in a relatively unique structure of the first cover body 1 at the bottom of the water tank 100. The above-mentioned second cover body 2 structure is adopted, which not only facilitates the second cover body 2 to cleverly utilize the installation space formed between the main part 11 and the extension part 12 of the first cover body 1, but also makes the second cover body 2 easy to be independently disassembled, so as to perform later maintenance on the traction valve c covered by the second cover body 2.

[0044] like Figure 4 , 5As shown, the lower edge of the main part 11 of the first cover body 1 in this embodiment extends toward the traction valve c to form a first fold 17, and the bottom of the L-shaped main part 21 of the second cover body is a first flat plate 22 that can be horizontally connected with the first fold 17. This structure not only facilitates the first cover body 1 to be spliced ​​with the second cover body 2 and the third cover body 3 at the bottom, but also eliminates the gap at the splicing of the first cover body 1, the second cover body 2, and the third cover body 3, thereby playing a role in preventing rats. In order to facilitate assembly, a first limiting opening 171 arranged toward the first flat plate 22 is opened at the edge of the first fold 17, and the first flat plate 22 is provided with a first supporting edge 221 that can be supported on the lower edge of the first fold 17 and a first limiting strip 222 that extends vertically and can be inserted into the first limiting opening 171 at the edge close to the first fold 17. The top edge of the L-shaped main body 21 of the second cover body extends upward to form a first side panel 23 that can cover the outside of the extension portion 12 of the first cover body 1. The side edge of the first side panel 23 is provided with a second folded edge 24 extending outward. Correspondingly, the outer wall surface of the extension portion 12 of the first cover body 1 is provided with a third folded edge 18 extending outward. The third folded edge 18 is fixedly connected to the second folded edge 24 by screws.

[0045] like Figure 5 , 6As shown, the upper part of the third cover body 3 of this embodiment is formed into a U-shaped structure 300 with an opening toward the main part 11 of the first cover body 1, and the top edge of the U-shaped structure 300 is respectively connected with the corresponding edge of the bottom of the water tank 100, and the bottom of the U-shaped structure 300 is provided with a second flat plate 31 that can be horizontally connected with the bottom of the first cover body 1 and the second cover body 2, and the second flat plate 31 is provided with a second notch 311 for accommodating the bottom structure of the second cover body 2 at the corresponding second cover body 2. This structure is convenient for splicing with the bottom edges of the first cover body 1 and the second cover body 2 and improving compactness, and the space at the bottom of the water tank is reasonably utilized without occupying too much space, and it is also convenient for the third cover body 3 to be independently installed and disassembled. In order to facilitate assembly, the first cover body 1 is respectively provided with slots at the two edges corresponding to the third cover body U-shaped structure 300, and correspondingly, the two side edges of the third cover body U-shaped structure 300 are respectively provided with plugs that are plugged into the above-mentioned slots. The side of the extension part 12 of the first cover body 1 is provided with a first slot 191, and correspondingly, the first side 301 of the third cover body U-shaped structure 300 is provided with a first plug 32 that can be plugged and connected with the first slot 191; the outer edge of the main part 11 of the first cover body 1 extends along the first corner 101 of the bottom of the water tank 100 to the first edge 103 to form an extension edge 19 arranged corresponding to the second side 302 of the third cover body U-shaped structure 300, and the extension edge 19 is provided with a second slot 192, and correspondingly, the second side 302 of the third cover body U-shaped structure 300 is provided with a second plug 33 that can be plugged and connected with the second slot 192. The middle part of the first folded edge 17 is provided with a socket 172 arranged corresponding to the second flat plate 31, and correspondingly, the edge of the second flat plate 31 is provided with a plug-in portion 313 that can be plugged and connected with the socket 172. A third slot 173 is disposed inside the first folded edge 17 , and correspondingly, the second flat plate 31 is provided with third inserting pieces 312 on the side walls located on both sides of the inserting portion 313 , which can be plugged and connected with the third slot 173 .

[0046] The bottom wall of the U-shaped structure 300 is arranged lower than the second flat plate 31 . A water outlet 303 for draining accumulated water is provided on the bottom wall of the U-shaped structure 300 , and the water outlet 303 is covered with a rodent-proof net 304 .

[0047] like Figure 2 , 3As shown, for easy disassembly and assembly, the top edge of the main part 11 of the first cover body 1 has a first assembly part 111 extending upward close to the side of the water tank 100, and the first assembly part 111 is connected to the side wall of the water tank 100 by screw locking; the top edge of the extension part 12 of the first cover body 1 has a second assembly part 121 extending upward close to the side of the water tank 100, and the second assembly part 121 is connected to the water tank 100 by screw locking. The third edge 105 at the bottom of the water tank 100 has a third assembly part 106 extending downward close to the inner wall of the third cover body 3, and the third assembly part 106 is connected to the top edge of the third cover body 3 by screw locking.

[0048] The rat-proof bottom cover structure of this embodiment also includes a wiring box 5 that can protect the power line introduced into the inner cavity. Part of the wiring box 5 is located outside the sink 100. A third notch 122 is provided on the top of the extended portion 12 of the first cover body 1 for the wiring box 5 to pass through. Another part of the wiring box 5 passes through the third notch 122 and extends toward the electrical box f. This structure can prevent the power line outside the rat-proof bottom cover from being gnawed by rats.

[0049] The disassembly and assembly method of the rat-proof bottom cover structure of the above-mentioned sink cleaning machine is as follows:

[0050] When installing:

[0051] First, fix the top edge of the main part 11 of the first cover body 1 to the first edge 103 of the bottom of the water tank 100 by screws, and fix the top edge of the extension part 12 of the first cover body 1 to the third edge 105 of the bottom of the water tank 100 by screws;

[0052] Then, place the second cover 2 under the extension part 12 of the first cover 1, so that the side edge of the second cover 2 is aligned with the side edge of the main part 11 of the first cover 1, the edge of the first flat plate 22 at the bottom of the second cover 2 is aligned with the edge of the first folded edge 17 of the first cover 1, the first limiting strip 222 of the second cover 2 is inserted into the first limiting opening 171 of the first folded edge 17 at the bottom of the first cover 1, and the third folded edge 18 on the outer side of the extension part 12 of the first cover 1 is locked and connected with the second folded edge 24 on the side of the second cover 2 by screws;

[0053] Finally, the accommodating cavity 30 of the third cover body 3 is correspondingly buckled on the outside of the electrical box f at the bottom of the sink 100, and the third cover body 3 is pushed toward the first cover body 1 and the second cover body 2 until the lower edge of the third cover body 3 is respectively aligned with the adjacent edges of the first cover body 1 and the second cover body 2, the first plug 32 of the third cover body 3 is inserted into the first slot 191 of the first cover body 1, the second plug 33 of the third cover body 3 is inserted into the second slot 192 of the first cover body 1, the plug-in portion 313 of the third cover body 3 is inserted into the socket 172 of the first cover body 1, the third plug 312 of the third cover body 3 is inserted into the third slot 173 of the first cover body 1, and the top edge of the third cover body 1 is locked and connected with the third assembly portion 106 at the bottom of the sink 100 with screws.

[0054] When disassembling:

[0055] The first cover 1 is fixed and does not move. If the circuit boards on the motor a, heating plate b, ultrasonic structure e, and electrical box f need to be repaired, remove the screws connecting the top edge of the third cover 3 and the bottom edge of the water tank 100, and only remove the third cover 3;

[0056] If the traction valve c needs to be repaired, it is only necessary to remove the third cover body 3 and / or the second cover body 2. The second cover body 2 can be removed by removing the screws between the upper edge of the second cover body 2 and the outer edge of the extension portion 12 of the first cover body 1.

[0057] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A rat-proof bottom cover structure for a sink cleaning machine, characterized in that: Below the bottom of the water tank (100) are arranged: A first cover body (1), the top edge of which is constrained at the bottom edge of the water tank (100), the first cover body (1) comprising a main body portion (11) arranged vertically corresponding to a first edge (103) of the bottom of the water tank (100) and an extension portion (12) arranged vertically corresponding to a third edge (105) of the bottom of the water tank (100) adjacent to the first edge (103), and the height of the extension portion (12) is less than the height of the main body portion (11), thereby forming an installation space (13) below the extension portion (12); The second cover body (2) has a main body portion (21) with an L-shaped cross section, the L-shaped main body portion (21) is arranged in the installation space (13) and is connected to the extension portion (12) at the top and connected to the main body portion (11) of the first cover body (1) at the bottom; as well as A third cover body (3) is arranged at the bottom of the water tank (100) and the top edge is connected to the bottom edge of the water tank (100) so as to be spliced ​​with the first cover body (1) and the second cover body (2) to form a relatively closed inner cavity. The bottom wall of the third cover body (3) is partially concave to form a receiving cavity (30) for accommodating the electrical box (f). An opening (10) is formed at the bottom connection between the third cover body (3) and the second cover body (2) to allow the output port (c1) of the traction valve (c) to be exposed therefrom. The lower edge of the main body (11) of the first cover body (1) extends toward the traction valve (c) to form a first folded edge (17), and the bottom of the L-shaped main body (21) of the second cover body is a first flat plate (22) capable of horizontally docking with the first folded edge (17); The top edge of the L-shaped main body (21) of the second cover body extends upward to form a first side panel (23) capable of covering the outside of the extension portion (12) of the first cover body (1), and the side edge of the first side panel (23) is provided with a second folded edge (24) extending outward. Correspondingly, the outer wall surface of the extension portion (12) of the first cover body (1) is provided with a third folded edge (18) extending outward, and the third folded edge (18) is fixedly connected to the second folded edge (24) by screws.

2. The rat-proof bottom cover structure of the sink cleaning machine according to claim 1, characterized in that: A first limiting opening (171) arranged toward the first flat plate (22) is provided at the edge of the first folded edge (17); and a first supporting edge (221) capable of supporting the lower edge of the first folded edge (17) and a first limiting strip (222) extending vertically and capable of being inserted into the first limiting opening (171) are provided at the edge of the first flat plate (22) close to the first folded edge (17).

3. The rat-proof bottom cover structure of a sink cleaning machine according to claim 1 or 2, characterized in that: The main part (11) and the extension part (12) of the first cover body (1) form a mounting area (14) for accommodating a water inlet valve (d) at the connection point. The water inlet valve (d) is arranged on the outer side of the first cover body (1). The connection point between the main part (11) and the extension part (12) of the first cover body (1) is provided with a first notch (15) for allowing the electrical connection end of the water inlet valve (d) to extend into the inner side of the first cover body (1).

4. The rat-proof bottom cover structure of the sink cleaning machine according to claim 3, characterized in that: The main part (11) of the first cover body (1) is provided with a mounting plate (112) capable of covering the outer wall of the water inlet valve (d) at an edge close to the mounting area (14); a mounting plate (4) capable of surrounding the outer periphery of the water 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).

5. The rat-proof bottom cover structure of a sink cleaning machine according to claim 1 or 2, characterized in that: The upper portion of the third cover body (3) is formed as a U-shaped structure (300) with its opening facing the main portion (11) of the first cover body (1); the top edges of the U-shaped structure (300) are respectively connected to the corresponding edges of the bottom of the water tank (100); the bottom of the U-shaped structure (300) is provided with a second flat plate (31) that can be horizontally connected to the bottom of the first cover body (1) and the second cover body (2); and the second flat 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).

6. The rat-proof bottom cover structure of the sink cleaning machine according to claim 5, characterized in that: The first cover body (1) is provided with slots at two edges corresponding to the U-shaped structure (300) of the third cover body (3), and correspondingly, the edges of both sides of the U-shaped structure (300) of the third cover body (3) are provided with inserts that are matched with the above-mentioned slots.

7. The rat-proof bottom cover structure of the sink cleaning machine according to claim 6, characterized in that: A first slot (191) is provided on the side of the extension portion (12) of the first cover body (1), and correspondingly, a first plug piece (32) capable of being plugged and connected with the first slot (191) is provided on the first side edge (301) of the third cover body U-shaped structure (300).

8. The rat-proof bottom cover structure of the sink cleaning machine according to claim 6, characterized in that: The outer edge of the main body (11) of the first cover body (1) extends along the first corner (101) of the bottom of the water tank (100) to the first edge (103) to form an extended edge (19) arranged corresponding to the second side edge (302) of the third cover body U-shaped structure (300), and a second slot (192) is provided on the extended edge (19). Correspondingly, a second plug-in piece (33) capable of being plugged and connected with the second slot (192) is provided at the second side edge (302) of the third cover body U-shaped structure (300).

9. The rat-proof bottom cover structure of a sink cleaning machine according to claim 5, characterized in that: The lower edge of the main body (11) of the first cover body (1) extends toward the traction valve (c) to form a first folded edge (17), a socket (172) is provided in the middle of the first folded edge (17), and correspondingly, a plug-in portion (313) is protruded from the edge of the second flat plate (31) and can be plugged and connected with the socket (172).

10. The rat-proof bottom cover structure of the sink cleaning machine according to claim 9, characterized in that: A third slot (173) is provided on the inner side of the first folded edge (17), and correspondingly, the second flat plate (31) is provided with third plug-in pieces (312) respectively on the side walls located on both sides of the plug-in portion (313) and can be plugged and connected with the third slot (173).

11. The rat-proof bottom cover structure of a sink cleaning machine according to claim 1 or 2, characterized in that: The top edge of the main part (11) of the first cover body (1) has a first assembly part (111) extending upward close to the side of the water tank, and the first assembly part (111) is connected to the water tank (100) by screw locking; the top edge of the extension part (12) of the first cover body (1) has a second assembly part (121) extending upward close to the side of the water tank (100), and the second assembly part (121) is connected to the water tank (100) by screw locking.

12. The rat-proof bottom cover structure of a sink cleaning machine according to claim 1 or 2, characterized in that: The third edge (105) at the bottom of the water tank (100) has a third assembly portion (106) extending downward close to the inner wall of the third cover body (3), and the third assembly portion (106) is locked with the top edge of the third cover body (3) by means of screws.

13. The rat-proof bottom cover structure of a sink cleaning machine according to claim 1 or 2, characterized in that: It also includes a wiring box (5) capable of protecting the power line introduced into the inner cavity, wherein a portion of the wiring box (5) is located outside the water tank (100), and a third notch (122) for the wiring box (5) to pass through is formed on the top of the extension portion (12) of the first cover body (1), and another portion of the wiring box (5) passes through the third notch (122) and extends toward the electrical box (f).

14. The rat-proof bottom cover structure of a sink cleaning machine according to claim 1 or 2, characterized in that: A water outlet (303) for draining the accumulated water is provided on the bottom wall of the third cover body (3) at a position corresponding to the electrical box (f), and the water outlet (303) is covered with a rat-proof net (304).

15. A method for disassembling and assembling the rat-proof bottom cover structure of a sink cleaning machine according to any one of claims 1 to 14, characterized in that: During installation, the top edge of the main part (11) of the first cover body (1) is first fixed to the first edge (103) of the bottom of the water tank (100) by screws, and the top edge of the extension part (12) of the first cover body (1) is fixed to the third edge (105) of the bottom of the water tank (100) by screws; then the second cover body (2) is placed below the extension part (12) of the first cover body (1), so that the lower edge of the second cover body (2) is aligned with the corresponding edge of the main part (11) of the first cover body (1), and the upper edge of the second cover body (2) is aligned with the extension part (12) of the first cover body (1). (12) are locked and connected by screws at the outer edge; finally, the accommodating cavity (30) of the third cover body (3) is correspondingly buckled on the outside of the electrical box (f) at the bottom of the sink (100), and the third cover body (3) is pushed toward the first cover body (1) and the second cover body (2) until the lower edge of the third cover body (3) is respectively aligned with the adjacent edges of the first cover body (1) and the second cover body (2) to form an inner cavity where only the output port (c1) of the traction valve (c) is exposed, and the top edge of the third cover body (3) is locked and connected with the second edge (104) at the bottom of the sink (100) by screws; During disassembly, the first cover body (1) is fixed and does not move. If it is necessary to repair the motor (a), the heating plate (b), the ultrasonic structure (e), and the circuit board on the electrical box (f), the screw connection between the top edge of the third cover body (3) and the bottom edge of the water tank (100) is released, and only the third cover body (3) is removed. If it is necessary to repair the traction valve (c), only the third cover body (3) and / or the second cover body (2) need to be removed, and the screw connection between the upper edge of the second cover body (2) and the outer edge of the extension part (12) of the first cover body (1) is released, and the second cover body (2) can be removed.

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