Dirt purification integrated water tank and surface cleaning machine
By designing a sewage-cleaning integrated water tank in a portable spray surface cleaning machine, the anti-gravity drop of water purification and sewage is achieved by using partitions and eaves structures, the problem of disassembly and assembled water tanks separately in the prior art is solved, and the convenience of use and the neatness of the cleaning machine are improved.
Patent Information
- Application Number
- CN202421924429.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The water purification tank and sewage tank of the existing portable suction surface cleaning machine are independent of each other. After use, they must be disassembled and emptied separately, resulting in inconvenience in use.
A integrated water tank for clean and sewage is designed. By setting a partition inside the water tank, it is divided into a water purification chamber and a sewage chamber, and eaves are set on the sides. Multiple interfaces are provided at the bottom of the eaves and the corresponding connections are connected to the host interface, so as to achieve anti-gravity drops of water purification and sewage, and avoid water spilling when the water tank is disassembled and installed.
It realizes emptied water and sewage while simplifying the operation process, improving the convenience of use, and keeping the surface of the cleaning machine clean.
Smart Images
Figure CN223250003U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of portable spray-suction surface cleaning machines, in particular to a cleaning and sewage integrated water tank and a surface cleaning machine using the cleaning and sewage integrated water tank. Background Art
[0002] Portable spray-suction surface cleaning machines can be divided into fabric cleaning machines and bathing machines based on the cleaning object. Fabric cleaning machines can be used to clean surfaces such as curtains, sofas, and carpets, while bathing machines can be used for bathing. This type of cleaning machine includes a main unit and a brush head. The main unit is equipped with a clean water tank, a dirty water tank, a water spray pump, and a vacuum motor. The brush head is provided with a water spray hole and a return hole. The clean water tank, water spray pump, and water spray hole form a water spray system, while the vacuum motor, dirty water tank, and return hole form a wastewater recovery system. During cleaning, clean water in the clean water tank is applied to the surface to be cleaned through the water spray hole on the brush head via the water spray system. The cleaned dirt is collected from the return hole on the brush head through the wastewater recovery system into the wastewater tank. Existing surface cleaning machines of this type have separate clean water tanks and dirty water tanks, forming two separate boxes. After use, the dirty water tank and clean water tank must be removed from the main unit, and the dirty water in the dirty water tank and the remaining water in the clean water tank must be emptied. This results in inconvenience. Utility Model Content
[0003] The purpose of the utility model is to provide a water tank and surface cleaning machine with an integrated cleaning function to solve the above-mentioned defects in the prior art.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is as follows:
[0005] A water tank with integrated purification and sewage treatment, comprising a main body, a first cover and a second cover, wherein the interior of the main body is provided with a partition extending up and down, the partition dividing the interior of the main body into a clean water chamber and a sewage chamber, the interior of the clean water chamber is provided with a first tube body extending along the direction of gravity and the bottom end of which is communicated with the clean water chamber, one side of the main body is provided with an eaves, the bottom of the eaves is provided with a first interface and a second interface communicated with the sewage chamber, and a third interface communicated with the top end of the first tube body, the first cover and the second cover are correspondingly connected to the mouth of the clean water chamber and the mouth of the sewage chamber.
[0006] A surface cleaning machine includes a main unit and the above-mentioned integrated water tank for cleaning and polluting, wherein:
[0007] The main unit includes a water tank containing tank, the water tank containing tank is provided with an upward boss, the top of the boss is provided with a fourth interface connected to the sewage pipeline in the main unit, a fifth interface connected to the vacuum motor in the main unit, and a sixth interface connected to the clean water pipeline in the main unit;
[0008] When the bottom of the integrated water tank for purification and sewage is embedded in the water tank accommodating groove, the bottom of the eaves corresponds to the top of the boss, and the first interface, the second interface and the third interface are correspondingly connected to the fourth interface, the fifth interface and the sixth interface.
[0009] Compared with the prior art, the present invention has at least the following beneficial effects:
[0010] Since the clean water chamber and the sewage chamber are formed in the same water tank, the remaining water and sewage can be emptied by only one disassembly and assembly of the water tank, so it has the advantage of being easy to use.
[0011] The integrated water tank for cleaning and sewage is divided into a clean water chamber and a sewage chamber by arranging partitions extending up and down in the main body. A first tube body extending in the direction of gravity and with the bottom end communicating with the clean water chamber is arranged in the clean water tank, and an eaves is arranged on one side of the main body. A first interface and a second interface communicating with the sewage chamber are arranged at the bottom of the eaves, and a third interface communicating with the top of the first tube body. The water outflow mode of the clean water chamber and the water inflow mode of the sewage chamber are both anti-gravity modes. After the cleaning machine is stopped, the clean water and sewage at the interfaces will fall back under the action of gravity, avoiding water accumulation at the various interfaces of the water tank. Therefore, when the water tank is removed from the cleaning machine main body, no water will spill from the various interfaces of the water tank to the cleaning machine main body. Moreover, when the water tank is installed to the cleaning machine main body, the third interface, the first interface and the second interface of the water tank cannot be seen from the outside, making the surface of the cleaning machine more tidy. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a three-dimensional diagram of a sewage and purification integrated water tank;
[0013] Figure 2 This is a diagram showing the first cover and the main body being separated;
[0014] Figure 3 This is a schematic diagram of the internal structure of the integrated water tank for purification and sewage treatment;
[0015] Figure 4 is a schematic diagram of the switch panel in the sewage chamber;
[0016] Figure 5 It is a structural diagram of the switch board;
[0017] Figure 6 A schematic diagram of the water tank receiving slot and boss on the main unit;
[0018] Figure 7 This is the state diagram after the water tank and the host are combined;
[0019] Figure 8 It is a schematic diagram of the combined state of the eaves and the boss, as well as the first to third interfaces and the fourth to sixth interfaces. DETAILED DESCRIPTION
[0020] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0022] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0023] Combine Figure 1-Figure 4 The present integrated water tank for purification and sewage 100 includes a main body 101, a first cover 106 and a second cover 103. A partition 131 extending up and down is provided inside the main body 101 to divide the interior of the main body 101 into a clean water chamber 127 and a sewage chamber 132. A first tube body 125 extending along the direction of gravity and communicating with the clean water chamber 127 at its bottom end is provided inside the clean water chamber 127. The main body 101 includes a first side portion 115, the first side portion 115 is provided with an eaves 109, and the bottom of the eaves 109 is provided with a third interface 119, as well as a first interface 120 and a second interface 117 communicating with the sewage chamber. The top end of the third interface 119 is connected to the top end of the first tube body 125 through a horizontal tube 126. The first cover 106 is connected to the mouth of the clean water chamber 127, and the second cover 103 is connected to the mouth of the sewage chamber 132.
[0024] In this embodiment, the first interface 120 is specifically a jack, the second interface 117 is specifically a jack, and the third interface 119 is specifically a tubular plug. It should be noted that the specific form of the interface is not limited to this. The first interface 120 can also be a tubular plug, the second interface 117 can also be a tubular plug, and the third interface 119 can also be a jack.
[0025] The up and down extension can be vertical to the horizontal plane or non-vertical to the horizontal plane. Both methods can divide the interior of the main body 101 into two cavities with upward openings, and the two cavities serve as the clean water chamber 127 and the sewage chamber 132 respectively.
[0026] The eaves 109 refer to the portion of the top of the main body 101 that extends to the side.
[0027] Combine Figure 6-Figure 8 In one embodiment, a main unit 200 of a surface cleaning machine includes a water tank 201. The water tank 201 is provided with an upwardly projecting boss 202. A fourth port 205, a fifth port 203, and a sixth port 204 are provided on the top of the boss 202. The fourth port 205 is connected to a sewage pipe within the main unit 200. The fifth port 203 is connected to a vacuum motor within the main unit 200 via an air pipe. The sixth port 204 is connected to a clean water pipe within the main unit 200.
[0028] When the bottom of the integrated water tank 100 is embedded in the water tank receiving groove 201 of the main unit 200, the bottom of the eaves 109 corresponds to the top of the boss 202 on the main unit 200, and the first interface 120, the second interface 117 and the third interface 119 at the bottom of the eaves 109 are plugged into the fourth interface 205, the fifth interface 203 and the sixth interface 204 at the top of the boss 202. Figure 8 shown.
[0029] The fourth interface 205 and the fifth interface 203 are specifically tubular plugs, and the sixth interface 204 is specifically a jack. It should be noted that the specific form of the interface is not limited to this. The type of interface on the boss 202 can correspond to the type of interface at the bottom of the eaves 109. For example, if the interface at the bottom of the eaves 109 is a tubular plug, the interface on the boss 202 can be a jack.
[0030] Among them, the sewage pipe in the main unit is connected to the return hole on the brush head to form a sewage return system. A vacuum motor connected to the sewage tank is provided in the main unit. The clean water pipe in the main unit is connected to the water spray hole on the brush head to form a water spray system. A water spray pump is provided in the clean water pipe in the main unit. These are the conventional structures of this type of surface cleaning machine. The innovation of this application does not involve these parts, so they will not be repeated in this application.
[0031] When the cleaning machine is working, the water spray pump and the vacuum motor are started. Under the action of the water spray pump, clean water flows into the first tube body 125 from the bottom end of the first tube body 125, passes through the first tube body 125, the third interface 119 at the bottom of the eaves 109 and the sixth interface 204 at the top of the boss 202, the clean water pipeline in the main unit 200, the water spray hole on the brush head, and then sprays to the surface to be cleaned. The vacuum generated by the vacuum motor passes through the fifth interface 203 at the top of the boss 202 and the second interface 117 at the bottom of the eaves 109, The inside of the sewage chamber 132, the first interface 120 at the bottom of the eaves 109 and the fourth interface 205 at the top of the boss 202, the sewage pipe in the main unit 200, and the return hole on the brush head then act on the surface to be cleaned. Under the action of this vacuum, the sewage enters the return hole of the brush head from the surface to be cleaned, and the sewage passes through the sewage pipe in the main unit 200, the fourth interface 205 at the top of the boss 202 and the first interface 120 at the bottom of the eaves 109 in turn from the return hole, and then flows into the sewage chamber 132 to realize the collection of sewage.
[0032] When the cleaning machine finishes working, the water spray pump and the vacuum motor stop. At this time, under the action of gravity, the remaining water between the third interface 119 and the first tube body 125 will flow from the first tube body 125 into the clean water chamber 127, and the remaining water will not be retained and accumulated at the third interface 119 of the water tank 100. Similarly, under the action of gravity, the sewage at the junction of the first interface 120 and the fourth interface 205 flows from the fourth interface 205 of the boss 202 into the sewage pipe in the main unit 200, and the sewage will not be retained and accumulated at the first interface 120 of the water tank 100. This ensures that when the water tank 100 is removed from the main unit 200, no water from the third interface 119, the first interface 120 and the second interface 117 of the water tank 100 will spill onto the main unit 200.
[0033] Depend on Figure 7 As can be seen, when the water tank 100 is installed on the cleaning machine main body 200, the third interface, the first interface, and the second interface of the water tank 100 are not visible from the outside, making the surface of the cleaning machine more neat and tidy. As can be seen, the provision of the eaves 109 and the placement of the first interface 120, the second interface 117, and the third interface 119 at the eaves 109 in this embodiment also make the surface of the cleaning machine more neat and tidy.
[0034] Existing spray-suction surface cleaning machines use two independent water tanks to store clean water and wastewater, respectively. After the cleaning machine is finished, the water tanks need to be disassembled and assembled twice: once to disassemble and assemble the clean water tank and empty the remaining water in it, and once to disassemble and assemble the wastewater tank and empty the wastewater in it. Compared to this existing technology, this embodiment uses an integrated clean and wastewater tank, so only one disassembly and assembly operation is required to empty the remaining water and wastewater, making it more convenient to use.
[0035] Refer again Figure 1In this embodiment, the first side portion 115 of the main body 101 of the integrated sewage and purification water tank 100 includes a middle portion 113, a left portion 114 and a right portion 112, and the eaves 109 is provided at the middle portion 113, and the outer edge 111 of the left portion 114 and the outer edge 110 of the right portion 112 are both flush with the outer edge 108 of the eaves 109.
[0036] Combine Figure 1 、 Figure 6 and Figure 7 In this embodiment, the eaves 109 only occupies the middle portion 113 of the first side portion 115. The interior of the left portion 114 and the interior of the right portion 112 constitute part of the volume of the water tank 100. Moreover, when the water tank 100 is installed on the main unit 200, the outer edge 111 of the left portion 114, the outer edge 110 of the right portion 112 and the outer edge 108 of the eaves 109 are all in contact with the side of the main unit 200, and a larger abutment area can be formed between the water tank 100 and the main unit 200.
[0037] As another embodiment, the eaves 109 may occupy the middle portion 113 , the left portion 114 , and the right portion 112 of the first side portion 115 .
[0038] Reference Figure 3 In this embodiment, the eaves 109 are provided on the side of the body 101 constituting the water purification chamber 127 , and the partition 131 is provided with a first through hole 130 and a second through hole 129 near the mouth of the water purification chamber 127 .
[0039] Reference Figure 2 A first channel 123 and a second channel 124 are provided at the bottom of the first cover 106 .
[0040] When the first cover 106 is in the closed state, the first channel 123 connects the first interface 120 at the bottom of the eaves 109 with the first through hole 130 on the partition, and the second channel 124 connects the second interface 117 at the bottom of the eaves 109 with the second through hole 129 on the partition.
[0041] The first channel 123 is used as a water inlet channel of the sewage chamber, and the second channel 124 is used as an air inlet channel of the sewage chamber.
[0042] In this embodiment, by setting the relative positions of the eaves 109, the clean water chamber 127 and the sewage chamber 132, combined with the first through hole 130 and the second through hole 129 set on the partition 131, and the first channel 123 and the second channel 124 set on the first cover body 106, there is no pipe crossing the sewage chamber 132, thereby facilitating the cleaning of the sewage chamber 132.
[0043] It should be noted that the eaves 109 can also be arranged on any one of the four sides of the main body 101, and can be arranged on the side of the main body 101 that constitutes the clean water chamber 127, or on the side of the main body 101 that constitutes the sewage chamber 132.
[0044] Reference Figure 1 In this embodiment, a lower recess 107 is provided on the top of the first cover 106 for inserting fingers into, and a first finger buckle 104 is provided on one side of the lower recess 107. After inserting a finger into the lower recess 107 and buckling the first finger buckle 104, the water tank 100 can be taken out of the main unit and carried.
[0045] A water injection hole is further provided on the top of the first cover 106, which is connected to the water purification chamber. The water injection hole is provided with a hole plug 105. After removing the hole plug 105 from the water injection hole, purified water can be injected into the water purification chamber through the water injection hole. In this way, water can be injected into the water purification chamber without opening the first cover 106, which is more convenient to use.
[0046] The second cover 103 is coupled to the opening of the sewage chamber. A second finger buckle 102 is provided on one edge of the second cover 103. When the second finger buckle 102 is buckled upwards, the second cover 103 can be removed from the opening of the sewage chamber.
[0047] Reference Figure 2 The first cover body 106 includes a first side plate 1231 , and a tongue plate 122 extending toward the bottom of the water purification chamber 127 is provided at the bottom edge of the first side plate 1231 , and a buckle hole 121 is provided on the tongue plate 122 .
[0048] Reference Figure 3 The partition 131 includes a first surface facing the water purification chamber 127 , and the first surface is provided with a protrusion 128 .
[0049] Reference Figure 2 The bottom of the eaves 109 is provided with screw holes 118.
[0050] After the first cover body 106 is combined with the mouth of the water purification chamber 127, the first side panel 1231 of the first cover body 106 is fitted with the partition 131, the protruding buckle 128 is fitted with the buckle hole 121 on the tongue plate 122, and the screws are installed in the screw holes 118 at the bottom of the eaves 109 to connect it to the first cover body 106, thereby connecting the first cover body 106 to the mouth of the water purification chamber 127.
[0051] In this embodiment, the first cover body 106 is connected to the mouth of the water purification chamber 127 by using the protruding buckle 128 on the partition 131 in combination with the screws at the bottom of the eaves 109. The first cover body 106 is firmly connected to the water purification chamber 127, and screws are only set on one edge, so fewer screws are used.
[0052] Preferably, the first side plate 1231 (see Figure 2) toward the partition 131 (see Figure 3 ) of the surface corresponding to the first via hole 130 (see Figure 3 ) and the corresponding second via hole 129 (see Figure 3 ) are respectively provided with grooves on the periphery thereof, and sealing rings are embedded in the grooves.
[0053] Thus, when the first cover 106 is mounted to the mouth of the water purification chamber 127, the first channel 123 (see Figure 2 ) and the partition 131, and the second channel 124 (see Figure 2 ) forms a sealed connection with the partition 131, so that the sewage in the first channel 123 will not leak into the clean water chamber 127, and the gas in the second channel 124 will not leak into the clean water chamber 127.
[0054] Reference Figure 4 The partition 131 includes a second surface facing the sewage chamber 132, and the second surface corresponds to the first through hole 130 (see Figure 3 ) is provided with a guide groove 135 extending up and down on the lower side, and a switch plate 134 is provided on the lower side of the first through hole 130 through the guide groove 135, Figure 5 , the switch plate 134 is provided with a float 137 .
[0055] The second surface of the partition 131 corresponds to the first through hole 130 (see Figure 3 ) is provided with a first limiting protrusion 133 on the upper side. When the switch plate 134 abuts against the first limiting protrusion 133, the switch plate 134 and the first through hole 130 are aligned, so that the first through hole 130 enters a closed state, as shown in FIG. Figure 4 shown.
[0056] The combination of the switch plate 134, the float 137, and the first limiting protrusion 133 ensures that: when the water level in the sewage chamber 132 rises, the liquid pushes the float 137 upward, and the float 137 drives the switch plate 134 to slide upward along the guide groove 135. When the upper edge of the switch plate 134 abuts the first limiting protrusion 133, the switch plate 134 is aligned with the first through-hole 130, sealing the first through-hole 130. Sewage will no longer enter the sewage chamber 132, thereby preventing sewage in the sewage chamber 132 from overflowing.
[0057] In this embodiment, the float 137 and the switch plate 134 are integrally injection molded. Alternatively, the switch plate 134 and the float 137 may be molded separately, and a connecting structure may be provided between the switch plate 134 and the float 137 to integrate the float 137 and the switch plate 134. The connecting structure may be a common screw connection structure, a snap connection structure, a mortise and tenon connection structure, or the like.
[0058] Furthermore, the switch plate 134 is provided with a second limiting protrusion 136 (see FIG. Figure 5), when the switch plate 134 is aligned with the first through hole 130, the second limiting protrusion 136 is engaged with the first through hole 130, which can keep the switch plate 134 in a state of closing the first through hole 130.
[0059] Reference Figure 2 The first interface 120 and the second interface 117 at the bottom of the eaves 109 are both jacks, and a sealing ring 116 is provided at the periphery of the jack, and the bottom end of the sealing ring 116 is trumpet-shaped.
[0060] When the water tank 100 is mounted on the main unit 200, the periphery of the fourth interface 205 is in contact with the bell-mouth surface of the sealing ring 116 on the periphery of the first interface 120 (see FIG. Figure 8 ), forming a seal, the periphery of the fifth interface 203 and the flared surface of the sealing ring 116 of the periphery of the second interface 117 are in contact with each other (see Figure 8 ), forming a seal.
[0061] It can be seen that this embodiment further adopts a method in which the first interface 120 and the second interface 117 at the bottom of the eaves 109 adopt a socket and the sealing ring 116 around the socket adopts a sealing ring with a bell-mouth structure at the bottom, so that when there is a certain deviation in the assembly position of the water tank 100 on the main unit 200, the interface can also be sealed and connected.
[0062] The above detailed description of the present invention is based on specific embodiments. This detailed description is intended only to help those skilled in the art understand the present invention and is not to be construed as limiting the scope of protection of the present invention. Any modifications, equivalent transformations, and other modifications made by those skilled in the art based on the concept of the present invention to the above-described solution are intended to be included within the scope of protection of the present invention.
Claims
1. A water tank with integrated cleaning and sewage treatment, characterized by: The invention comprises a body (101), a first cover (106) and a second cover (103); a partition (131) extending up and down is provided inside the body, and the partition divides the inside of the body into a clean water chamber (126) and a sewage chamber (132); a first tube (125) extending in the direction of gravity and communicating with the clean water chamber at its bottom end is provided inside the clean water chamber; an eave (109) is provided on one side of the body; a first interface (120) and a second interface (117) communicating with the sewage chamber are provided at the bottom of the eave, and a third interface (119) communicating with the top end of the first tube; the first cover and the second cover are connected to the mouth of the clean water chamber and the mouth of the sewage chamber respectively.
2. The integrated water tank for purification and sewage treatment according to claim 1, characterized in that: The side portion of the body (101) includes a middle portion (113), a left portion (114) and a right portion (112); the eaves (109) is arranged at the middle portion (113); the outer edges of the left portion (114) and the right portion (112) are both flush with the outer edge of the eaves (109).
3. The integrated water tank for purification and sewage treatment according to claim 1, characterized in that: The eaves (109) are provided on the side of the main body (101) forming the water purification chamber, the partition (131) is provided with a first through hole (130) and a second through hole (129) at a position close to the mouth of the water purification chamber, and the first cover (106) includes a first channel (123) and a second channel (124). When the first cover is in a closed state, the first channel enables the first interface to communicate with the first via hole, and the second channel enables the second interface to communicate with the second via hole.
4. The integrated water tank for purification and sewage treatment according to claim 1, characterized in that: The top of the first cover (106) is provided with a lower concave portion (107) for a finger to be inserted into, and one side of the lower concave portion is provided with a finger buckle position. A water injection hole communicating with the water purification cavity is provided on the top of the first cover body.
5. The integrated water tank for purification and sewage treatment according to claim 3, characterized in that: The first cover (106) includes a first side plate (1231) fitted with the partition (131), a tongue plate (122) with a button hole is provided at the bottom edge of the first side plate, the partition (131) includes a first surface facing the water purification chamber, the first surface is provided with a convex button (128), and the bottom of the eaves (109) is provided with screws for connecting to the first cover; When the first cover is in a closed state, the protruding buckle is buckled with the buckle hole on the tongue plate.
6. The integrated water tank for purification and sewage according to claim 5, characterized in that: The surface of the first side plate (1231) facing the partition (131) is provided with grooves corresponding to the periphery of the first through hole (130) and the periphery of the second through hole (129), and sealing rings are embedded in the grooves.
7. The integrated water tank for purification and sewage according to claim 3, characterized in that: The partition (131) includes a second surface facing the sewage chamber, the second surface corresponding to the lower side of the first through hole (130) is provided with a guide groove (135) extending up and down, and a switch plate (134) slidingly engaged with the guide groove, the switch plate is provided with a float (137), and the second surface of the partition is provided with a first limiting protrusion (133) on the upper side of the first through hole. When the switch plate abuts against the first limiting protrusion, the switch plate and the first through hole are aligned, so that the first through hole enters a closed state.
8. The integrated water tank for purification and sewage according to claim 7, characterized in that: The switch plate (134) is provided with a second limiting protrusion (136) facing the partition plate (131). When the switch plate is aligned with the first through hole, the second limiting protrusion is engaged with the first through hole.
9. The integrated water tank for purification and sewage according to claim 1, characterized in that: The first interface (120) and the second interface (117) are jacks, and the third interface (119) is a tubular plug. A sealing ring (116) is provided on the periphery of the jack, and the bottom end of the sealing ring is in a bell-mouth shape.
10. A surface cleaning machine, characterized in that: It comprises a main unit (200) and a purification and sewage integrated water tank as claimed in any one of claims 1 to 9, The main unit comprises a water tank containing tank (201), the water tank containing tank being provided with an upward boss (202), the top of the boss being provided with a fourth interface (205) communicating with a sewage pipeline in the main unit, a fifth interface (203) communicating with a vacuum motor in the main unit, and a sixth interface (204) communicating with a clean water pipeline in the main unit; When the bottom of the integrated water tank for purification and sewage is embedded in the water tank receiving groove (201), the bottom of the eaves (109) corresponds to the top of the boss (202), and the first interface (120), the second interface (117) and the third interface (119) are connected to the fourth interface (205), the fifth interface (203) and the sixth interface (204) respectively.