Water tank and cleaning machine

Abstract

The embodiment of the invention provides a water tank and a cleaning machine, the water tank comprises a water tank main body, the water tank main body is provided with a first space and a second space, the first space is used for accommodating a cleaning agent, the second space is used for accommodating clear water, and the water tank main body is provided with a cleaning agent inlet communicated with the first space and a clear water inlet communicated with the second space; the first cover assembly is arranged on the cleaning agent inlet and used for opening or closing the cleaning agent inlet; the liquid outlet valve assembly is arranged on the water tank main body, and the liquid outlet valve assembly is provided with a first inlet communicated with the first space, a second inlet communicated with the second space and a valve outlet communicated with the first inlet and the second inlet; when the liquid outlet valve assembly is opened, the cleaning agent and the clean water can enter the valve outlet and are discharged; and when the liquid outlet valve assembly is closed, the cleaning agent and the clear water cannot be discharged through the valve outlet. The device is simple in structure and low in cost. The cleaning agent and the clear water are not mixed in the water tank but mixed at the valve outlet of the liquid outlet valve assembly, and the cleaning effect is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and in particular, relates to a water tank and a cleaning machine. Background Art

[0002] At present, the water tanks used in cleaning machines generally have scale lines printed on them, and users need to add clean water and detergent quantitatively according to the scale lines printed on them or add detergent and clean water in proportion to prepare the cleaning solution by feeling. There are certain limitations. Moreover, the water tanks used in cleaning machines currently do not have a form of separating detergent and clean water. Generally, detergent is added to the clean water tank and mixed with clean water in the clean water tank, which is complicated to operate. Summary of the invention

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present application is to provide a water tank and a cleaning machine.

[0004] The technical solution adopted in the embodiment of the present application is a water tank, comprising:

[0005] A water tank body, having a first space and a second space independent of each other, wherein the first space is used to contain detergent, and the second space is used to contain clean water, and the water tank body is provided with a detergent inlet communicating with the first space and a clean water inlet communicating with the second space;

[0006] A first cover assembly, which is disposed on the detergent inlet and is used to open or close the detergent inlet;

[0007] A liquid outlet valve assembly is arranged on the water tank body, wherein the liquid outlet valve assembly has a first inlet connected to the first space, a second inlet connected to the second space, and a valve outlet connected to the first inlet and the second inlet respectively; the liquid outlet valve assembly can be opened or closed, and when the liquid outlet valve assembly is opened, the detergent in the first space and the clean water in the second space can enter the valve outlet through the first inlet and the second inlet respectively and be discharged, so as to achieve mixing outside the water tank or mixing inside a cleaning machine using the water tank; when the liquid outlet valve assembly is closed, the detergent in the first space and the clean water in the second space cannot be discharged through the valve outlet.

[0008] In an optional embodiment, the first cover assembly includes a first cover body and an adjusting assembly arranged on the first cover body, the first cover assembly is detachably arranged on the detergent inlet through the first cover body, an air hole is provided on the adjusting assembly, and the adjusting assembly can be rotated relative to the first cover body to close or open the air hole, when the air hole is closed, the first space cannot be connected to the outside world, and when the air hole is opened, the first space is connected to the outside world through the air hole.

[0009] In an optional embodiment, the adjustment assembly includes a switch and a switch cover;

[0010] The first cover body is detachably sealed on the detergent inlet, and the first cover body is provided with a first through hole for connecting the first space with the outside;

[0011] The switch cover is provided with the air hole, and the switch cover is fixed on the first cover body, so that the air hole corresponds to and communicates with the first through hole;

[0012] The switch is limited between the first cover body and the switch cover, a second through hole is provided on the switch, and the switch can rotate relative to the switch cover so that the second through hole is opposite to or staggered with the air hole, and the air hole is opened or closed; wherein, when the air hole is opened and the liquid outlet valve assembly is opened, the detergent in the first space can be discharged through the valve outlet, and when the air hole is closed, the detergent in the first space cannot be discharged through the valve outlet. By providing the air hole on the first cover assembly, the air pressure principle can be used to control whether the detergent is involved in the cleaning work, and the operation control is simple and convenient.

[0013] In an optional embodiment, the first cover body has a first central hole penetrating through the top and bottom surfaces thereof, the top periphery of the first cover body and the periphery of the first central hole are recessed downward to form an annular cavity and a hollow convex column surrounded by the annular cavity, and the first through hole is provided at the cavity bottom of the annular cavity;

[0014] The switch cover is arranged in the annular cavity, and has a second center hole and an arc-shaped hole arranged around the second center hole. The switch cover is fixedly sleeved on the outside of the hollow convex column of the first cover body through the second center hole;

[0015] The switch is provided with a third through hole and a toggle portion protruding upward from the top surface of the switch. The switch is arranged in the annular cavity and below the switch cover. The toggle portion of the switch passes through the arc hole and is exposed outside the first cover. The toggle portion can rotate along the arc hole so that the second through hole and the air hole are opposite or staggered. The structure is reasonable and easy to assemble. The user can conveniently control whether to introduce the detergent into the cleaning operation by toggling the toggle portion.

[0016] In an optional embodiment, the first cover assembly further includes an indicator film, the indicator film is disposed between the switch cover and the switch, the indicator film can rotate with the switch, the indicator film is provided with a third through hole corresponding to and connected to the second through hole and a fourth through hole for the toggle portion to pass through, the fourth through hole is provided with a closing mark and an opening mark on both sides of the fourth through hole along the rotation direction of the toggle portion, when the toggle portion drives the switch to rotate to a state where the second through hole is opposite to the air hole, the opening mark is exposed through the arc hole, and when the toggle portion drives the switch to rotate to a state where the second through hole is staggered from the air hole, the closing mark is exposed through the arc hole. By providing the indicator film, it is convenient for the user to intuitively understand whether the air hole is in a closed state or an open state, thereby avoiding misoperation.

[0017] In an optional embodiment, a liquid outlet hole is provided on the bottom wall of the first space;

[0018] The first cover assembly also includes an adjusting rod, which is connected to the first cover body and can move up and down relative to the first cover body. The bottom end of the adjusting rod is opposite to the liquid outlet. When the adjusting rod moves up and down, the opening and closing and the opening degree of the liquid outlet can be adjusted, thereby adjusting the size of the liquid outlet flow area of ​​the liquid outlet.

[0019] In an optional embodiment, the adjusting rod is provided with a screw thread structure near the top thereof, and the bottom end of the adjusting rod is conical;

[0020] The inner wall of the first center hole of the first cover body is provided with a thread structure, and the adjusting rod extends into the first center hole and is adapted to the thread structure to form a threaded connection, so that when the adjusting rod rotates, it can move up and down relative to the first cover body;

[0021] The liquid outlet hole is a conical structure with a larger top and a smaller bottom; when the adjusting rod rotates, the gap between the outer peripheral wall of the bottom end of the adjusting rod and the hole wall of the liquid outlet hole can be changed to achieve the opening and closing and opening degree adjustment of the liquid outlet hole. In an optional embodiment, the adjusting knob, spring and first sealing ring, the adjusting knob is fixed to the part of the adjusting rod extending outside the upper end of the first cover body, and when the adjusting knob is rotated, the adjusting rod is driven to rotate synchronously;

[0022] The first sealing ring is sleeved on the adjusting rod and abuts against the downwardly recessed middle part of the top end of the hollow boss of the first cover body, so as to seal between the adjusting rod and the first cover body; the spring is sleeved on the adjusting rod, the upper end of the spring abuts against the inner side of the adjusting knob, and the lower end of the spring abuts against the upper side of the first sealing ring, and the spring is used to apply a force to the first sealing ring to improve its sealing performance.

[0023] In an optional embodiment, the liquid outlet valve assembly includes a valve body, a valve cover and a valve stem, the valve cover is arranged on the valve body and cooperates with the valve body to form a valve cavity, the second inlet is arranged on the valve body and / or the valve cover, and the valve body is provided with a first sealing component;

[0024] The valve stem is provided with a channel penetrating the first end and the second end thereof, the first end of the valve stem is provided with a second sealing component and extends through the valve cover into the valve cavity, a water outlet is formed between the first end of the valve stem and the inner wall of the valve cavity, the first end of the channel forms a detergent outlet, the second end of the channel is communicated with the first space to form the first inlet, and the valve outlet is provided on the valve body and communicated with the water outlet and the detergent outlet respectively;

[0025] The valve stem can move along its axial direction and has a first position and a second position. When the valve stem is in the first position, the first sealing component blocks the detergent outlet and the second sealing component blocks the water outlet; when the valve stem is in the second position, the first sealing component opens the detergent outlet and the second sealing component opens the water outlet. The liquid outlet valve assembly has a compact and reasonable structure and can effectively control whether the detergent and clean water are discharged.

[0026] In an optional embodiment, the liquid outlet valve assembly further includes a reset component, which is disposed in the valve cavity and is used to apply a force to the valve stem to move it from the second position to the first position, so that the liquid outlet valve assembly can maintain a normally closed state to avoid liquid leakage.

[0027] In an optional embodiment, the water tank further comprises a second cover body, the liquid outlet valve assembly is assembled on the second cover body, and together with the second cover body, forms a second cover assembly, the second cover assembly is detachably arranged on the clean water inlet, and the top of the second cover body has an opening connected to the valve outlet of the liquid outlet valve assembly. Combining the liquid outlet valve assembly and the second cover body to form the second cover assembly can simplify the structure and reduce costs.

[0028] In an optional embodiment, a joint is connected to the clean water inlet, the valve body of the liquid outlet valve assembly is connected to the inner side of the cover top of the second cover body, an annular cavity is formed between the valve body and the peripheral side of the cover body, and a sealing ring is sleeved on the valve body; when the second cover assembly is installed on the clean water inlet, the joint extends into the annular cavity, the sealing ring is used to seal between the outer side of the valve body and the inner side of the joint, and the inner side of the second cover body is connected to the outer side of the joint. The structure is simple and reasonable, and the second cover assembly can be disassembled and assembled on the clean water inlet.

[0029] In an optional embodiment, the water tank further comprises a detergent tube, a first end of the detergent tube is connected to a second end of the valve stem, and a second end of the detergent tube is connected to a wall of the first space and communicates with the first space. The detergent in the first space can be smoothly introduced into the valve stem through the detergent tube.

[0030] A cleaning machine comprises a machine body, a third joint is arranged on the machine body, and the cleaning machine further comprises a water tank as described in any of the above embodiments, the water tank is detachably arranged on the machine body, and when the water tank is arranged on the machine body, the third joint extends into the liquid outlet valve assembly and pushes the liquid outlet valve assembly to open, and when the water tank is removed from the machine body, the liquid outlet valve assembly is automatically closed. The cleaning machine can realize the separation of detergent and clean water, so that the user can choose whether to involve the detergent in the cleaning work according to the needs.

[0031] Compared with the prior art, the beneficial effects of the embodiment of the present application are: the water tank structure of the embodiment of the present application is simple and the cost is low. The detergent and clean water can be respectively loaded into the designated first space and the second space, and the detergent and clean water will not mix in the water tank, but will be mixed into a cleaning liquid at the liquid outlet of the liquid outlet valve assembly during use to improve the cleaning ability; and the proportion of the detergent in the cleaning liquid can be quantified and is convenient to use.

[0032] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0033] The overview of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, serve to illustrate the claimed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts.

[0035] Figures 1 to 4 They are respectively schematic diagrams of the three-dimensional structure of the water tank of the embodiment of the present application; wherein, Figure 1 and Figure 2 The first cover assembly and the second cover assembly are respectively installed on the water tank. Figure 3 The first cover assembly is removed from the water tank. Figure 4 The second cover assembly is removed from the water tank.

[0036] Figure 5 This is an exploded view of the water tank according to an embodiment of the present application.

[0037] Figure 6 This is a side view of a water tank according to an embodiment of the present application.

[0038] Figure 7 and Figure 8 They are Figure 6 AA section view; among them, Figure 7 The air hole of the first cover assembly is in an open state, Figure 8 The air hole of the first cover assembly is in a closed state.

[0039] Fig. 9 for Figure 7 Magnified view of part B.

[0040] Fig.10 This is an exploded view of the first cover assembly of an embodiment of the present application.

[0041] Fig.11 This is a front view of the first cover assembly of an embodiment of the present application in an open state.

[0042] Fig.12 for Fig.11 CC section view.

[0043] Fig.13 This is a front view of the first cover assembly of an embodiment of the present application in a closed state.

[0044] Fig.14 for Fig.13 DD section view.

[0045] Fig.15 and Fig.16 They are respectively exploded views of the second cover assembly from different perspectives of an embodiment of the present application.

[0046] Fig.17 It is a side view of the second cover assembly of the embodiment of the present application.

[0047] Fig.18 for Fig.17 EE section view.

[0048] Fig.19 It is a side view from another angle of the second cover assembly of the embodiment of the present application.

[0049] Fig. 20 and Fig.21 They are Fig.19 FF section diagram; among them, Fig. 20 The middle liquid outlet valve assembly is in the closed state. Fig.21 The middle liquid outlet valve assembly is in the open state.

[0050] Fig. 22This is a schematic diagram of the structure of the valve stem of an embodiment of the present application.

[0051] Fig.23 This is a schematic diagram of the partial structure of a water tank in an embodiment of the present application applied to a cleaning machine.

[0052] Fig.24 for Fig.23 Magnified view of part I.

[0053] Fig.25 This is a schematic diagram of the structure of the third joint of the present application.

[0054] Description of reference numerals:

[0055] 11- water tank body; 111- umbrella valve; 12- water tank upper cover; 121- detergent inlet; 122- first joint; 123- partition; 13- water tank bottom cover; 131- clean water inlet; 132- second joint; 14- inner cover; 141- liquid outlet; 15- first space; 16- second space; 17- handle; 18- detergent tube; 19- limit pin;

[0056] 2-first cover assembly; 21-first cover body; 211-first through hole; 212-first center hole; 213-annular concave cavity; 214-hollow boss; 215-nut; 22-switch; 221-second through hole; 222-sliding part; 223-third center hole; 23-switch cover; 231-air hole; 232-arc hole; 233-second center hole; 24-indicator film; 241-third through hole; 242-fourth through hole; 243-fourth center hole; 25-adjusting rod; 251-screw structure; 252-rubber package; 26-adjusting knob; 27-spring; 28-first sealing ring; 29-gasket;

[0057] 3-second cover assembly; 31-liquid outlet valve assembly; 311-valve body; 3111-rod; 3112-second sealing ring; 3113-drawing rib; 312-valve cover; 313-valve stem; 3131-channel; 3133-end; 3134-annular groove; 3136-second sealing component; 314-valve cavity; 3141-first inlet; 3142-second inlet; 3143-valve outlet; 3144-water outlet; 315-reset component; 316-filter; 32-second cover body; 321-opening; 322-annular cavity;

[0058] 4-third joint; 41-thimble; 5-water pump; 6-water pipe. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiment of the present application clearer, the technical solution of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0060] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0061] In order to keep the following description of the embodiments of the present application clear and concise, the present application omits detailed descriptions of known functions and known components.

[0062] like Figures 1 to 9 As shown, an embodiment of the present application provides a water tank, which can be used on cleaning equipment such as a cleaning machine to provide cleaning liquid to the cleaning equipment when in use, so as to clean the surface to be cleaned (such as the floor, table top, surface of fabric sofas or bedding, etc.), objects, etc.

[0063] In some embodiments, Figure 7 and Figure 8 As shown, the water tank includes a water tank body 11, a first cover assembly 2 and a liquid outlet valve assembly 31. The water tank body 11 has a first space 15 and a second space 16 that are independent of each other. The first space 15 is used to accommodate detergent, and the second space 16 is used to accommodate clean water. The water tank body 11 is provided with a detergent inlet 121 communicating with the first space 15 and a clean water inlet 131 communicating with the second space 16. Figure 3 and Figure 4. The first cover assembly 2 is arranged on the detergent inlet 121, and is used to open or close the detergent inlet 121. The liquid outlet valve assembly 31 is arranged on the water tank body 11, and the liquid outlet valve assembly 31 has a first inlet 3141 connected to the first space 15, a second inlet 3142 connected to the second space 16, and a valve outlet 3143 connected to the first inlet 3141 and the second inlet 3142 respectively. Among them, the liquid outlet valve assembly 31 can be opened or closed. When the liquid outlet valve assembly 31 is opened, the detergent in the first space 15 and the clean water in the second space 16 can enter the valve outlet 3143 through the first inlet 3141 and the second inlet 3142 respectively, and be discharged from the valve outlet 3143, so as to achieve the mixing of the detergent and the clean water outside the water tank or inside the cleaning machine using the water tank; when the liquid outlet valve assembly 31 is closed, the detergent in the first space 15 and the clean water in the second space 16 cannot be discharged through the valve outlet 3143.

[0064] The present application forms two independent spaces in the water tank body 11 to accommodate detergent and clean water respectively. The detergent and clean water enter the same liquid outlet valve assembly 31 through the first inlet 3141 and the second inlet 3142 respectively, and are discharged by the valve outlet 3143 of the liquid outlet valve assembly 31, thereby improving the convenience of operation. When only clean water is needed for cleaning, detergent may not be added to the first space 15. Moreover, since the clean water in the second space 16 will not be mixed with detergent, a mixed solution of clean water and detergent may be used for effective cleaning during the cleaning process, and then rinsed with clean water to ensure that no detergent remains on the surface or items after cleaning. However, in the prior art, detergent is directly added to the clean water in the clean water tank (second space 16), so that detergent will remain in the clean water tank, and true clean water cleaning cannot be achieved.

[0065] It is understandable that the formation method of the first space 15 and the second space 16 in the water tank body 11 and the position in the water tank body 11 are not limited. For example, the interior of the water tank body 11 can be divided into the first space 15 and the second space 16 by setting a partition 123 in the water tank body 11, or the first space 15 and the second space 16 can be integrally formed during the processing of the water tank body 11. The first space 15 can be located in the middle of the upper part of the water tank body 11 or on the side of the water tank body 11, and the rest of the water tank body 11 is the second space 16. For example, preferably, the first space 15 and the second space 16 are arranged in the water tank body 11 in an up-and-down manner or in a left-and-right manner, so that the water tank forms an up-and-down structure or a left-and-right structure.

[0066] In some embodiments, Figure 7 and Figure 8As shown, the first space 15 and the second space 16 are arranged up and down, the first space 15 is arranged at a position near one side of the top of the water tank body 11, and the rest of the water tank body 11 forms the second space 16, and the volume of the second space 16 is much larger than the volume of the first space 15. The second space 16 is arranged at the lower part of the water tank body 11, so that the water tank can be more stable after the second space 16 is filled with clean water; and most of the space in the water tank body 11 is designed as the second space 16, so that the second space 16 can hold enough clean water to meet the water demand during cleaning.

[0067] Optional, such as Figure 5 As shown, the water tank further includes a water tank upper cover 12 and a water tank bottom cover 13. The water tank body 11 is a structure with closed sides and open ends. The water tank upper cover 12 covers the upper end opening of the water tank body 11, and the water tank bottom cover 13 covers the lower end opening of the water tank body 11. The water tank upper cover 12, the water tank bottom cover 13 and the water tank body 11 together form a chamber. The water tank bottom cover 13 and the water tank body 11 can be locked by a limit pin 19. Figure 7 and Figure 8 As shown, a downwardly extending partition 123 is provided on the top wall of the water tank upper cover 12, and an inner cover plate 14 is provided on the inner side wall of the water tank upper cover 12. The inner cover plate 14 is connected to the partition plate 123 to enclose a first space 15 in the part of the chamber corresponding to the water tank upper cover 12, and the rest of the chamber forms a second space 16.

[0068] like Figures 1 to 4 ,and Figures 6 to 8 As shown, the detergent inlet 121 is provided on the upper cover 12 of the water tank, and the clean water inlet 131 is provided on the bottom cover 13 of the water tank. A first cover assembly 2 is detachably provided on the detergent inlet 121, and a second cover assembly 3 is detachably provided on the clean water inlet 131. When the user needs to add detergent and clean water, the detergent and clean water can be added respectively by unscrewing and removing the first cover assembly 2 and the second cover assembly 3. Then, the first cover assembly 2 and the second cover assembly 3 are reinstalled and tightened, and the water tank can be loaded into the cleaning machine for use. It can be understood that when adding clean water, the first cover assembly 2 needs to be covered on the detergent inlet 121 first, and the water tank is turned upside down so that the clean water inlet 131 is facing upward, and then clean water can be added to the second space 16. After the clean water is added, the second cover assembly 3 is covered, and then the water tank is turned over so that the detergent inlet 121 is facing upward for use. A very small air hole 231 communicating with the second space 16 is provided near the upper portion of the water tank body 11. An umbrella valve 111 can be provided on the air hole 231 to prevent negative pressure from forming in the second space 16 when the clean water is discharged, thereby affecting the continued discharge of the clean water.

[0069] like Figure 5As shown, the water tank may further include a handle 17, and one side of the water tank upper cover 12 is concave to form a mounting position for the handle 17, and the handle 17 is arranged on the mounting position for the handle 17. By arranging the handle 17, it can be conveniently used to take the water tank.

[0070] In some embodiments, Fig.10 As shown, the first cover assembly 2 includes a first cover body 21 and an adjusting assembly arranged on the first cover body 21. The first cover assembly 2 is detachably arranged on the detergent inlet 121 through the first cover body 21. The adjusting assembly is provided with an air hole 231. The adjusting assembly can rotate relative to the first cover body 21 to close or open the air hole 231. When the air hole 231 is closed, the first space 15 cannot be communicated with the outside world. When the air hole 231 is opened, the first space 15 is communicated with the outside world through the air hole 231. The present application arranges the air hole 231 on the adjusting component to control whether the detergent in the first space 15 can be discharged by using the air pressure principle. The structure is simple and the cost is low. It can be understood that the number and setting method of the air hole 231 on the adjusting assembly are not limited, as long as the air pressure principle can be used to control whether the detergent participates in the cleaning operation.

[0071] Preferably, the adjustment assembly includes a switch 22 and a switch cover 23. The first cover body 21 is detachably sealed on the detergent inlet 121. The first cover body 21 is the base member of the first cover assembly, and is used to assemble other parts of the first cover assembly; the first cover body 21 is provided with a buckle position (or thread) corresponding to the detergent inlet 121, and the first cover assembly 21 is assembled to the water tank through the first cover body 21. The first cover body 21 is provided with a first through hole 211 for connecting the first space 15 with the outside, and the air hole 231 is provided on the switch cover 23. The switch cover 23 is fixed on the first cover body 21, and the air hole 231 corresponds to and is connected with the first through hole 211, see Fig.12 and Fig.14 The switch 22 is limited between the first cover body 21 and the switch cover 23. The switch 22 is provided with a second through hole 221. The switch 22 can rotate relative to the switch cover 23 so that the second through hole 221 on the switch 22 is opposite to or staggered with the first through hole 211 and the air hole 231. When the second through hole 221 is opposite to the first through hole 211 and the air hole 231, the air hole 231 is opened. When the second through hole 221 is staggered with the first through hole 211 and the air hole 231, the air hole 231 is closed. When the air hole 231 is opened and the liquid outlet valve assembly 31 is opened, the detergent in the first space 15 can be discharged through the valve outlet 3143. When the air hole 231 is closed, the detergent in the first space 15 cannot be discharged through the valve outlet 3143.

[0072] The present application sets an air hole 231 on the first cover assembly 2 and uses the air pressure principle to control whether the detergent can be discharged from the liquid outlet valve assembly 31, so that even if the first space 15 is filled with detergent, the user can choose not to let the detergent be discharged from the liquid outlet valve assembly 31 as needed, and can only use clean water for cleaning.

[0073] Further, such as Fig.10 As shown, the first cover 21 has a first center hole 212 that passes through its top and bottom surfaces. The top periphery of the first cover 21 and the periphery of the first center hole 212 are recessed downward to form an annular cavity 213, that is, the annular cavity 213 is surrounded by a hollow convex column 214; the first through hole 211 is arranged at the bottom of the annular cavity 213. The switch cover 23 is arranged in the annular cavity 213 and around the first center hole 212. The switch cover 23 has a second center hole 233 and an arc hole 232 arranged around the second center hole 233. Fig.10 The switch 22 is provided with a third through hole 221 and a toggle portion 222 protruding upward from the top surface of the switch 22. The switch 22 is arranged in the annular cavity 213 and is located below the switch cover 23. The third through hole 221 is sleeved outside the hollow boss 214. The toggle portion 222 of the switch 22 passes through the arc hole 232 and is exposed outside the first cover body 21. The switch cover 23 can be assembled to the first cover body 21 by buckling, which plays a fixing role and prevents the switch cover 23, the switch 22 and the indicator film 24 to be introduced below from moving up and down. The toggle portion 222 can rotate along the arc hole 232 so that the second through hole 221 and the air hole 231 are opposite or staggered. Fig.11 and Fig.12 As shown, when the toggle portion 222 rotates to one end of the arc-shaped hole 232, the second through hole 221 is opposite to the air hole 231, and the air hole 231 is connected to the first through hole 211 and opened. The first space 15 is connected to the outside world through the air hole 231, the second through hole 221 and the first through hole 211 in sequence. The air pressure in the first space 15 is the same as the atmospheric pressure. Under the action of the external atmospheric pressure, the detergent in the first space 15 can enter the liquid outlet valve assembly 31 through the first inlet 3141. When the liquid outlet valve assembly 31 is opened, the detergent can be discharged from the valve outlet 3143 and mixed with the clean water entering the liquid outlet valve assembly 31 from the second inlet 3142 at the valve outlet 3143 to form a cleaning solution. Fig.13 and Fig.14As shown, when the toggle portion 222 rotates to the other end of the arc-shaped hole 232, the second through hole 221 is staggered with the air hole 231, and the switch 22 cuts off the connection between the air hole 231 and the first through hole 211 to close the air hole 231, blocking the connection between the first space 15 and the outside world, and a negative pressure is formed in the first space 15. The cleaning liquid in the first space 15 will not flow downward, that is, no matter whether the liquid outlet valve assembly 31 is in an open state or a closed state, the cleaning liquid cannot be discharged from the valve outlet 3143 of the liquid outlet valve assembly 31, thereby achieving the effect of blocking the detergent from intervening in the cleaning work. At this time, the valve outlet 3143 of the liquid outlet valve assembly 31 can only discharge clean water. By toggling the toggle portion 222, the user can conveniently control whether to use a detergent for cleaning, thereby improving the convenience of use.

[0074] Further, such as Fig.10 As shown, the first cover assembly 2 also includes an indicator film 24, which is arranged between the switch cover 23 and the switch 22. The indicator film 24 can rotate with the switch 22. The indicator film 24 is provided with a third through hole 241 corresponding to and connected to the second through hole 221 and a fourth through hole 242 for the toggle part 222 to pass through. The fourth through hole 242 is provided with a closing mark and an opening mark on both sides of the rotation direction of the toggle part 222. When the toggle part 222 is rotated to one end of the arc hole 232, the opening mark is exposed through the arc hole 232, see Fig.11 As shown, at this time, the toggle part 222 drives the switch 22 to rotate to a state where the second through hole 221 and the air hole 231 are opposite, and the air hole 231 is connected to the first through hole 211 and opened; when the toggle part 222 is rotated to the other end of the arc hole 232, the closing mark is exposed through the arc hole 232, see Fig.13 At this time, when the toggle portion 222 drives the switch 22 to rotate to a state where the second through hole 221 and the air hole 231 are offset, the switch 22 cuts off the connection between the air hole 231 and the first through hole 211 to close the air hole 231. By providing the indicator film 24 and providing a closing mark and an opening mark on the indicator film 24, the user can intuitively understand whether the air hole 231 is in a closed state or an open state to avoid misoperation.

[0075] It is understandable that the form of the closing mark and the opening mark is not limited, as long as it is convenient for the user to distinguish whether the air hole 231 is open or closed. For example, the closing mark can be "X" and the opening mark can be "√". Fig.11 and Fig.13 As shown, the closing mark and the opening mark in this embodiment are respectively “Close” and “Open”. Using Chinese characters consistent with the actual situation as marks is more conducive to user distinction and judgment.

[0076] Continue to combine Fig.10The switch 22 is in the shape of a disc and has a third center hole 223. The third center hole 223 is used for the hollow boss 214 of the first cover 21 to pass through. The second through hole 221 and the toggle part 222 are respectively arranged on both sides of the third center hole 223. The second through hole 221 can be a circular hole, and the toggle part 222 can be cylindrical. The switch cover 23 is in the shape of a disc adapted to the switch 22. The arc hole 232 is in the shape of an arc with the second center hole of the switch cover 23 as the center. The indicator film 24 is circular and has a fourth center hole 243. The fourth center hole 243 is used for the hollow boss 214 of the first cover 21 to pass through. The third through hole 241 and the fourth through hole 242 are respectively arranged on both sides of the fourth center hole 243 of the indicator film 24. The diameter of the fourth through hole 242 is equivalent to the diameter of the toggle part 222, so that when the toggle part 222 is rotated, the indicator film 24 can be driven to rotate at the same time. The diameter of the third through hole 241 is equal to that of the second through hole 221 , and the two are always coaxial to prevent the indicator film 24 from hindering the connection or disconnection between the first through hole 211 and the air hole 231 .

[0077] It can be understood that the second through hole 221 and the air hole 231 are opposite to each other, including both completely overlapping and partially overlapping, that is, as long as the second through hole 221 can make the air hole 231 communicate with the first through hole 211. The second through hole 221 and the air hole 231 are staggered, which means that the two do not overlap at all, and the first through hole 211 and the air hole 231 cannot be communicated through the second through hole 221.

[0078] When the first cover assembly 2 is installed on the detergent inlet 121, the first cover assembly 2 and the detergent inlet 121 are sealed, and external air can enter the first space 15 through the air hole 231 only when the air hole 231 is opened. That is, the air hole 231 is the only channel connecting the first space 15 with the outside.

[0079] In some embodiments, the first cover assembly 2 further includes an adjusting rod 25, which is a movable part. The adjusting rod 25 is connected to the first cover body 21 and can move up and down relative to the first cover body 21. The bottom end of the adjusting rod 25 is opposite to the liquid outlet 141. When the adjusting rod 25 moves up and down, it can adjust the opening and closing of the liquid outlet 141. When the liquid outlet 141 is open, the adjusting rod 25 can also adjust the opening degree of the liquid outlet 141, thereby realizing the control of the discharge amount of the detergent. Preferably, as Fig.10 As shown, the adjusting rod 25 is provided with a screw thread structure 251 near its top (see Fig.10 ), the bottom end of the adjusting rod 25 is conical (see Fig. 9 , Fig.12 and Fig.14 ).like Fig.10 and Fig.12As shown, the inner wall of the first center hole 212 of the first cover body 21 is provided with a threaded structure, and the threaded structure can be formed by, for example, inserting a nut 215 in the first center hole 212. The adjustment rod 25 extends into the first center hole 212 and fits with the threaded structure to form a threaded connection. The upper end of the adjustment rod 25 extends out of the first cover body 21. When the adjustment rod 25 is rotated, the adjustment rod 25 moves in the up and down (vertical) direction along with the threaded guide. Fig. 9 As shown, a liquid outlet hole 141 is provided on the inner cover plate 14, and the liquid outlet hole 141 is a conical structure (funnel-shaped) that is larger at the top and smaller at the bottom. The bottom end of the adjusting rod 25 is opposite to the liquid outlet hole 141. When the adjusting rod 25 rotates in a first direction, the adjusting rod 25 moves downward. When the bottom end of the adjusting rod 25 extends into the liquid outlet hole 141 and the bottom end of the section rod 25 is tightly fitted with the hole wall of the liquid outlet hole 141, the liquid outlet hole 141 is blocked, and the detergent in the first space 15 cannot enter the liquid outlet valve assembly 31 through the liquid outlet hole 141. When the adjusting rod 25 rotates in a second direction opposite to the first direction, the adjusting rod 25 moves upward and its bottom end gradually separates from the liquid outlet hole 141, so that the outer peripheral wall of the bottom end of the adjusting rod 25 is gradually separated from the hole wall of the liquid outlet hole 141, so that the liquid outlet hole 141 is opened, and the detergent in the first space 15 can flow out through the annular gap between the hole wall of the liquid outlet hole 141 and the bottom end of the adjusting rod 25, see Fig. 9 The first direction may be a clockwise direction, and the second direction may be a counterclockwise direction.

[0080] By setting the adjustment rod 25 and setting the bottom end of the adjustment rod 25 and the liquid outlet 141 to be respectively matched with a conical structure, not only can the opening and closing of the liquid outlet 141 be controlled, but also the size of the opening of the liquid outlet 141 can be adjusted, that is, by changing the liquid outlet area of ​​the liquid outlet 141, the liquid outlet amount of the detergent can be controlled, so that the user can adjust the amount of detergent added according to the cleaning needs. The actual inlet area of ​​the detergent is equal to the area of ​​the liquid outlet 141 minus the cross-sectional area of ​​the adjustment rod 25. Fig. 9 As shown, the diameter of the liquid outlet 141 is D1, the diameter of the bottom end of the adjusting rod 25 is D2, and the actual inlet area of ​​the detergent = (D1 / 2) 2 π-(D2 / 2) 2π. As the adjusting rod 25 is rotated, the adjusting rod 25 moves up and down, and the position of its bottom end and the liquid outlet 141 changes, that is, X changes, and the actual inlet area of ​​the detergent changes. When the adjusting rod 25 moves upward, the smaller the cross-sectional area of ​​the adjusting rod 25 extending into the liquid outlet 141, the larger the actual inlet area of ​​the detergent. When the adjusting rod 25 moves downward, the larger the cross-sectional area of ​​the adjusting rod 25 extending into the liquid outlet 141, the smaller the actual inlet area of ​​the detergent. In this way, by rotating the adjusting rod 25, the user can conveniently adjust the amount of detergent added according to cleaning needs. For example, when the area or item to be cleaned is dirty and more detergent needs to be added, the adjusting rod 25 can be rotated to move it upward to increase the opening degree of the liquid outlet 141. When the area or item to be cleaned is not too dirty and less detergent is needed, the adjusting rod 25 can be rotated to move it downward to reduce the opening degree of the liquid outlet 141.

[0081] The bottom end of the adjusting rod 25 is coated with rubber to form a rubber-coated member 252 . The rubber-coated member 252 can fit tightly against the hole wall of the liquid outlet 141 to seal the liquid outlet 141 . This allows the bottom end of the adjusting rod 25 to completely seal the liquid outlet 141 .

[0082] In some embodiments, Figures 10 to 14 As shown, the first cover assembly 2 further includes an adjusting knob 26 , which is fixed to the portion of the adjusting rod 25 extending outside the upper end of the first cover body 21 . When the adjusting knob 26 is rotated, the adjusting rod 25 can be driven to rotate synchronously.

[0083] Optional, continue combining Figures 10 to 14 The first cover assembly 2 further includes a spring 27, a first sealing ring 28 and a gasket 29. The first sealing ring 28 is sleeved on the adjustment rod 26 and abuts against the downwardly concave portion of the middle portion of the top of the hollow boss 214 of the first cover body 21, and is used to seal between the adjustment rod 25 and the first cover body 21. There are two gaskets 29, which are respectively placed on the upper and lower sides of the first sealing ring 28, that is, the first sealing ring 28 is sandwiched between the two gaskets 29. The spring 27 is sleeved on the adjustment rod 25, the upper end of the spring 27 abuts against the inner side of the adjustment knob 26, and the lower end of the spring 27 abuts against the gasket 29 located on the upper side of the first sealing ring 28. The elastic force of the spring 27 acts evenly on the first sealing ring 28 through the gasket 29, so that the first sealing ring 28 achieves a better sealing effect, so that the first space 15 can only communicate with the outside air through the air hole 231.

[0084] In order to facilitate the installation of the first cover assembly 2 on the detergent inlet 121, the detergent inlet 121 can be connected to a short tubular first connector 122, see Figure 3 The first cover body 21 and the first connector 122 can be detachably connected by a buckle or a thread structure.

[0085] In some embodiments, Figures 15 to 21 As shown, the liquid outlet valve assembly 31 includes a valve body 311, a valve cover 312 and a valve stem 313. The valve cover 312 is arranged on the valve body 311 and cooperates with the valve body 311 to form a valve cavity 314. The second inlet 3142 is arranged on the valve body 311 and / or the valve cover 312. The second inlet 3142 shown in this embodiment is arranged on the valve body 311. The valve body 311 is provided with a first sealing component. The valve stem 313 is provided with a channel 3131 passing through the first end and the second end thereof, the first end of the valve stem 313 is provided with a second sealing component 3136 and extends through the valve cover 312 into the valve cavity 314, and a water outlet 3144 is formed between the first end of the valve stem 313 and the inner wall of the valve cavity 314, the first end of the channel 3131 forms a detergent outlet, the second end of the channel 3131 is connected to the first space 15 to form a first inlet 3141, and the valve outlet 3143 is provided on the valve body 311 and is connected to the water outlet 3144 and the detergent outlet respectively. The valve stem 313 can move along its axial direction and has a first position and a second position, such as Fig. 20 As shown, when the valve stem 313 is in the first position, the first sealing component blocks the detergent outlet, the second sealing component 3136 blocks the water outlet 3144, and the liquid outlet valve assembly 31 is in a closed state. The detergent in the first space 15 and the clean water in the second space 16 cannot be discharged through the liquid outlet valve assembly 31; Fig.18 and Fig.21 As shown, when the valve stem 313 is in the second position, the first sealing component opens the detergent outlet, and the second sealing component 3136 opens the water outlet 3144, and the detergent in the first space 15 and the clean water in the second space 16 can be discharged outward through the liquid outlet valve assembly 31, wherein, Fig.18 The blue arrow indicates the flow direction of clean water, and the red arrow indicates the flow direction of detergent.

[0086] Furthermore, in order to keep the liquid outlet valve assembly 31 in a normally closed state, it is opened only when a cleaning operation is required, such as Fig. 20 and Fig.21 As shown, the liquid outlet valve assembly 31 further includes a reset component 315 , which is disposed in the valve cavity 314 and is used to apply a force to the valve stem 313 to move the valve stem 313 from the second position to the first position.

[0087] The reset component 315 may be a spring, which is sleeved outside the valve stem 313, and one end of the spring abuts against the valve cover 312, and the other end of the spring abuts against the first end of the valve stem 313. Specifically, the upper end of the spring abuts against the inner top wall of the valve cover 312, the outer diameter of the first end of the valve stem 313 is larger than the outer diameter of other parts to form a step portion, and the lower end of the spring abuts against the upper end surface of the step portion.

[0088] like Fig.15 , Fig.16 , Fig.17 and Fig.19 As shown, the valve body 311 is provided with a second inlet 3142 on the circumferential side near the upper part thereof, and a plurality of second inlets 3142 are provided around the circumferential side of the valve body 311, so that the clean water in the second space 16 can enter the valve cavity 314 evenly and smoothly. Further, a filter screen 316 can be provided in the valve cavity 314 to filter the clean water entering the valve cavity 314 through the second inlet 3142. The filter screen 316 can be in the shape of a cylinder with both upper and lower ends open, and the outer peripheral wall of the filter screen 316 is attached to the inner wall of the valve body 311 corresponding to the second inlet 3142 thereof.

[0089] The valve body 311 is a hollow structure, and is respectively connected to the upper and lower ends thereof, and forms an upper end opening and a lower end opening. The upper end opening of the valve body 311 is buckled with the valve cover 312, and the lower end opening of the valve body 311 forms a valve outlet 3143. For example, a cross-shaped draw rib 3113 can be provided in the valve outlet 3143 (see Fig.16 ), the valve outlet 3143 is divided into multiple parts to avoid splashing when the liquid flows out. Fig.18 , Fig. 20 and Fig.21 As shown, a push rod 3111 coaxial with the valve stem 313 is also provided in the valve body 311. The lower end of the push rod 3111 can be connected to the draw rib 3113, and the upper end of the push rod 3111 is a free end and directly faces the lower end (first end) of the valve stem 313. The push rod 3111 can be used as a first sealing component. When the valve stem 313 moves downward under the action of the reset component 315, the upper end of the push rod 3111 extends into the channel 3131 of the first end of the valve stem 313 to seal the detergent outlet. Rubber coating can be provided at the upper end of the push rod 3111 to improve its sealing performance. The inner wall of the valve body 311 near the middle part gradually shrinks inward to form a neck, and connects the large-diameter part at the upper part and the small-diameter part at the lower part.

[0090] like Fig. 22 As shown, the lower end of the valve stem 313 is provided with a terminal head 3133, and the outer diameter of the terminal head 3133 is larger than the outer diameter of the valve stem 313, so that a step portion is formed between the terminal head 3133 and the valve stem 313. The lower part of the terminal head 3133 is provided with a plurality of notches from its bottom end inward, so that when the valve stem 313 is installed in the valve body 311, the draw rib 3113 can be avoided. The upper part of the terminal head 3133 is provided with an annular groove 3134 in the circumferential direction. The second sealing member 3136 can be a sealing ring, which is nested in the annular groove 3134, see Fig. 20 and Fig.21The end cap 3133 passes through the neck of the valve body 311, and the annular groove 3134 is located above the neck, and an annular gap is formed between the outer peripheral side of the end cap 3133 and the inner wall of the valve body 311, and the annular gap forms a water outlet 3144. The end cap 3133 is provided with a cavity that passes through the upper and lower ends thereof, and the top rod 3111 on the valve body 311 extends into the cavity from the bottom end of the end cap 3133 and faces the lower end of the channel 3131 of the valve stem 313. The valve stem 313 and the end cap 3133 are fixed together and can move together along the axial direction of the valve stem 313 under the action of external force.

[0091] When the valve stem 313 and the end head 3133 are subjected to an upward force and move upward, the sealing ring moves upward accordingly and detaches from the upper port of the annular gap, i.e., the water outlet 3144 is opened, and the clean water in the second space 16 can enter the valve cavity 314 through the second inlet 3142 and then enter the valve outlet 3143 from the water outlet 3144 and be discharged. At the same time, the lower end of the valve stem 313 detaches from the top rod 3111 on the valve body 311, and the detergent outlet at the lower end of the valve body 311 is opened, and the detergent in the first space 15 enters the cavity of the end head 3133 through the detergent outlet and is discharged from the valve outlet 3143. In this way, the liquid outlet valve assembly 31 is opened, see Fig.18 and Fig.21 ,in, Fig.18 The arrow direction represents the flow direction of the liquid. Moreover, the spring as the reset member 315 is compressed to accumulate elastic potential energy.

[0092] When the external force acting on the valve stem 313 and the end head 3133 disappears, the reset component 315 releases its elastic potential energy and stretches, pushing the valve stem 313 and the end head 3133 to move downward, the sealing ring follows and moves downward, and seals the upper port of the annular gap, the water outlet 3144 is closed, and the clean water entering the valve cavity 314 through the second inlet 3142 cannot enter the valve outlet 3143 through the water outlet 3144. At the same time, the push rod 3111 on the valve body 311 extends into the channel 3131 at the lower end (first end) of the valve stem 313, blocking the detergent outlet, and the detergent in the first space 15 cannot enter the cavity of the end head 3133 through the detergent outlet. In this way, the liquid outlet valve assembly 31 is closed, see Fig. 20 .

[0093] The water inlet 131 and the installation port for installing the liquid outlet valve assembly 31 can be respectively arranged on the wall of the water tank body 11 corresponding to the second space 16. In order to simplify the structure and reduce the cost, the liquid outlet valve assembly 31 and the second cover body 32 are combined together to form the second cover assembly 3. Figures 15 to 21 The top of the second cover body 32 has an opening 321 communicating with the valve outlet 3143 of the liquid outlet valve assembly 31, so as to avoid affecting the liquid outlet function of the liquid outlet valve assembly 31 due to the setting of the cover body.

[0094] like Figure 2 and Figure 4 As shown, the second cover assembly 3 is detachably arranged on the clean water inlet 131. When the second cover assembly 3 is arranged on the clean water inlet 131, the clean water inlet 131 can be closed when the liquid outlet valve assembly 31 is closed to prevent the detergent in the first space 15 and the clean water in the second space 16 from flowing out through the clean water inlet 131, and the detergent in the first space 15 and the clean water in the second space 16 can be discharged when the liquid outlet valve assembly 31 is opened. Clean water can also be added to the second space 16 through the clean water inlet 131 when the second cover assembly 3 is removed.

[0095] In some embodiments, Figure 4 As shown, the clean water inlet 131 is connected to a tubular second joint 132, the valve body 311 of the liquid outlet valve assembly 31 is connected to the inner side of the cover top of the second cover 32, an annular cavity 322 is formed between the valve body 311 and the peripheral side of the cover, and a second sealing ring 3112 is fixedly sleeved outside the valve body 311. Figure 7 As shown, when the second cover assembly 3 is installed on the clean water inlet 131, the second joint 132 extends into the annular cavity 322, the valve body 311 extends into the second joint 132, the valve cover 312 is located in the second space 16, and the second sealing ring 3112 is sealed between the outer peripheral side of the valve body 311 and the inner peripheral side of the second joint 132 to prevent the clean water in the second space 16 from leaking outward through the valve body 311 and the second joint 132. The inner side of the second cover body 32 is connected to the outer side of the second joint 132 to fix the entire second cover assembly 3 on the joint. The second cover body 32 and the second joint 132 can be connected by, for example, threaded connection or buckle connection.

[0096] The second end of the valve stem 313 is connected to the first space 15 in any manner. For example, the valve stem 313 can be made longer so that its upper end directly extends to the first space 15. A liquid outlet 141 is provided on the bottom wall (inner cover plate 14) of the first space 15. A connecting pipe extends downward from the liquid outlet 141. The upper end of the valve stem 313 is plugged into the connecting pipe and can move up and down relative to the connecting pipe. In order to prevent the detergent in the first space 15 from leaking at the connection between the connecting pipe and the valve stem 313, a dynamic seal can be provided between the valve stem 313 and the connecting pipe.

[0097] In some embodiments, Figure 7As shown, the water tank also includes a detergent tube 18, the first end of the detergent tube 18 is connected to the second end of the valve stem 313, and the second end of the detergent tube 18 is connected to the bottom wall of the first space 15 and communicates with the first space 15. Specifically, the second end of the valve stem 313 extends into the first end of the detergent tube 18, and a seal is formed between the two, and the valve stem 313 can move relative to the detergent tube 18 when it moves. The second end of the detergent tube 18 extends to the lower end of the inner cover plate 14 and is sealed and docked with the liquid outlet hole 141 on the inner cover plate 14. By providing the detergent tube 18, not only can the detergent be smoothly introduced into the liquid outlet valve assembly 31, but also the valve stem 313 can be prevented from being lengthened, which affects the disassembly of the liquid outlet valve assembly 31.

[0098] Normally, the first cover assembly 2 and the second cover assembly 3 are assembled on the water tank corresponding to the detergent inlet 121 and the clean water inlet 131. When detergent or clean water needs to be added, the first cover assembly 2 and the second cover assembly 3 are removed from the water tank, and detergent and clean water are added to the detergent inlet 121 and the clean water inlet 131 respectively, and then the first cover assembly 2 and the second cover assembly 3 are reassembled to install the water tank on the fabric cleaning machine for use.

[0099] The present application also provides a cleaning machine, which includes a body, and a third joint 4 is provided on the body. Fig.23 The cleaning machine further comprises a water tank in any of the above embodiments, and the water tank is detachably mounted on the machine body. When the water tank is mounted on the machine body, the third joint 4 extends into the second cover 32 and is connected to the valve outlet 3143 of the liquid outlet valve assembly 31. The ejector pin 41 in the third joint 4 pushes the liquid outlet valve assembly 31 to open. When the water tank is removed from the machine body, the liquid outlet valve assembly 31 is automatically closed. Since the cleaning machine of the present application comprises the water tank in the above embodiments, the cleaning agent and clean water can be packaged separately, and it is convenient for the user to select whether the cleaning agent is involved in the cleaning work according to the needs.

[0100] like Figure 23 to Figure 25As shown, a pin 41 is provided in one end of the third joint 4, and the other end of the third joint 4 is connected to one end of the water pipe 6, and the other end of the water pipe 6 is connected to the water inlet port of the water pump 5. When the water tank is installed on the body, one end of the third joint 4 passes through the second cover body 32 and is connected to the valve outlet 3143 of the liquid outlet valve assembly 31, and the pin 41 pushes upward against the end head 3133, so that the valve stem 313 moves upward, the second sealing component 3136 opens the water outlet 3144, and the pin 3111 opens the detergent outlet, and the liquid outlet valve assembly 31 is in an open state, and the detergent in the first space 15 will flow out from the liquid outlet hole 141 on the inner cover plate 14, and enter the detergent pipe 18, and then merge into the liquid outlet valve assembly 31; clean water will be merged into the liquid outlet valve assembly 31 from the second inlet 3142 on the side of the valve body 311 through the filter screen 316; at the same time, when the valve stem 313 moves upward, the reset component 315 is compressed and elastic potential energy is accumulated. At this time, if the water pump 5 is started, the cleaning liquid mixed with detergent and clean water flowing out of the valve outlet 3143 of the liquid outlet valve assembly 31 can be transported to the cleaning head for cleaning operations; if the water pump 5 is not started, since the water inlet port of the water pump 5 is in a closed state, the transportation path of the detergent and clean water is blocked, even if the liquid outlet valve assembly 31 is in an open state, the detergent and clean water cannot flow to the cleaning head. In this way, even if the water tank is installed on the cleaning machine and the liquid outlet valve assembly 31 is opened, the cleaning liquid will not flow out when it is not needed.

[0101] When the water tank is removed from the cleaning machine, the force exerted by the ejector pin 41 of the third joint 4 on the liquid outlet valve assembly 31 disappears, the reset component 315 stretches and releases potential energy, the reset component 315 pushes the valve stem 313 to drive the second sealing component 3136 to move downward, so that the second sealing component 3136 and the inner wall of the valve body 311 achieve an interference fit to achieve the effect of sealing the water outlet 3144, and the ejector pin 3111 on the valve body 311 blocks the lower port of the channel 3131 in the valve stem 313 to achieve the effect of sealing the detergent outlet, thereby achieving the requirement that the liquid outlet valve assembly 31 is closed without leaking.

[0102] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A water tank, characterized in that: include: A water tank body (11) having a first space (15) and a second space (16) which are independent of each other, wherein the first space (15) is used to contain a detergent, and the second space (16) is used to contain clean water, and the water tank body (11) is provided with a detergent inlet (121) communicating with the first space (15) and a clean water inlet (131) communicating with the second space (16); a first cover assembly (2), which is disposed on the detergent inlet (121) and is used to open or close the detergent inlet (121); A liquid outlet valve assembly (31) is arranged on the water tank body (11), wherein the liquid outlet valve assembly (31) has a first inlet (3141) communicating with the first space (15), a second inlet (3142) communicating with the second space (16), and a valve outlet (3143) communicating with the first inlet (3141) and the second inlet (3142) respectively; the liquid outlet valve assembly (31) can be opened or closed, and when the liquid outlet valve assembly (31) is opened, the detergent in the first space (15) and the clean water in the second space (16) can enter the valve outlet (3143) through the first inlet (3141) and the second inlet (3142) respectively and be discharged, so as to achieve mixing outside the water tank or mixing inside a cleaning machine using the water tank; when the liquid outlet valve assembly (31) is closed, the detergent in the first space (15) and the clean water in the second space (16) cannot be discharged through the valve outlet (3143).

2. The water tank according to claim 1, characterized in that: The first cover assembly (2) comprises a first cover body (21) and an adjusting assembly arranged on the first cover body (21); the first cover assembly (2) is detachably arranged on the detergent inlet (121) through the first cover body (21); an air hole (231) is arranged on the adjusting assembly; the adjusting assembly can rotate relative to the first cover body (21) to close or open the air hole (231); when the air hole (231) is closed, the first space (15) cannot communicate with the outside; when the air hole (231) is opened, the first space (15) communicates with the outside through the air hole (231).

3. The water tank according to claim 2, characterized in that: The adjustment component comprises a switch (22) and a switch cover (23); The first cover (21) is detachably sealed on the detergent inlet (121), and the first cover (21) is provided with a first through hole (211) for connecting the first space (15) with the outside; The air hole (231) is provided on the switch cover (23), the switch cover (23) is fixed on the first cover body (21), and the air hole (231) corresponds to and communicates with the first through hole (211); The switch (22) is limited between the first cover body (21) and the switch cover (23); a second through hole (221) is provided on the switch (22); and the switch (22) can rotate relative to the switch cover (23) so that the second through hole (221) and the air hole (231) are opposite to or staggered, thereby opening or closing the air hole (231); wherein, when the air hole (231) is opened and the liquid outlet valve assembly (31) is opened, the cleaning agent in the first space (15) can be discharged through the valve outlet (3143); and when the air hole (231) is closed, the cleaning agent in the first space (15) cannot be discharged through the valve outlet (3143).

4. The water tank according to claim 3, characterized in that The first cover body (21) has a first central hole (212) penetrating the top and bottom surfaces thereof; the top periphery of the first cover body (21) and the periphery of the first central hole (212) are recessed downward to form an annular cavity (213) and a hollow convex column (214) surrounded by the annular cavity (213); and the first through hole (211) is provided at the bottom of the annular cavity (213); The switch cover (23) is arranged in the annular concave cavity (213), the switch cover (23) has a second central hole (233) and an arc-shaped hole (232) arranged around the second central hole (233), and the switch cover (23) is fixedly sleeved on the outside of the hollow protrusion (214) of the first cover body (21) through the second central hole (233); The switch (22) is provided with a third through hole (221) and a toggle portion (222) protruding upward from the top surface of the switch (22); the switch (22) is arranged in the annular cavity (213) and is located below the switch cover (23); the toggle portion (222) of the switch (22) passes through the arc-shaped hole (232) and is exposed outside the first cover body (21); the toggle portion (222) can rotate along the arc-shaped hole (232) so that the second through hole (221) and the air hole (231) are opposite to or staggered.

5. The water tank according to claim 4, characterized in that: The first cover assembly (2) further comprises an indicator film (24), the indicator film (24) being arranged between the switch cover (23) and the switch (22), the indicator film (24) being capable of rotating together with the switch (22), the indicator film (24) being provided with a third through hole (241) corresponding to and communicating with the second through hole (221) and a fourth through hole (242) for the toggle portion (222) to pass through, the fourth through hole (242) being arranged along the toggle portion (222) A closing mark and an opening mark are respectively arranged on both sides of the rotation direction; when the toggle portion (222) drives the switch (22) to rotate to a state where the second through hole (221) and the air hole (231) are opposite to each other, the opening mark is exposed through the arc hole (232); when the toggle portion (222) drives the switch (22) to rotate to a state where the second through hole (221) and the air hole (231) are offset from each other, the closing mark is exposed through the arc hole (232).

6. The water tank according to claim 4, characterized in that A liquid outlet hole (141) is provided on the bottom wall of the first space; The first cover assembly (2) further comprises an adjusting rod (25), the adjusting rod (25) being connected to the first cover body (21) and being capable of moving up and down relative to the first cover body (21); the bottom end of the adjusting rod (25) is opposite to the liquid outlet hole (141); and the adjusting rod (25) is capable of adjusting the opening and closing and the degree of opening of the liquid outlet hole (141) when moving up and down.

7. The water tank according to claim 6, characterized in that The adjusting rod (25) is provided with a screw thread structure (251) near the top thereof, and the bottom end of the adjusting rod (25) is conical; The inner wall of the first center hole (212) of the first cover body (21) is provided with a threaded structure, and the adjusting rod (25) extends into the first center hole (212) and is adapted to the threaded structure to form a threaded connection, so that when the adjusting rod (25) rotates, it can move up and down relative to the first cover body (21); The liquid outlet hole (141) is a conical structure that is larger at the top and smaller at the bottom; when the adjusting rod (25) rotates, the gap between the outer peripheral wall at the bottom end of the adjusting rod (25) and the hole wall of the liquid outlet hole (141) can be changed, thereby realizing the opening and closing of the liquid outlet hole (141) and adjusting the opening degree, thereby adjusting the size of the liquid outlet flow area of ​​the liquid outlet hole (141).

8. The water tank according to claim 7, characterized in that The adjusting knob (26), the spring (27) and the first sealing ring (28), wherein the adjusting knob (26) is fixed to the portion of the adjusting rod (25) extending outside the upper end of the first cover body (21), and when the adjusting knob (26) is rotated, the adjusting rod (25) is driven to rotate synchronously; The first sealing ring (28) is sleeved on the adjusting rod (25) and abuts against a downwardly recessed portion in the middle of the top end of the hollow boss (214) of the first cover body (21), and is used to seal between the adjusting rod (25) and the first cover body (21); the spring (27) is sleeved on the adjusting rod (25), the upper end of the spring (27) abuts against the inner side of the adjusting knob (26), and the lower end of the spring (27) abuts against the upper side of the first sealing ring (28), and the spring (27) is used to apply a force to the first sealing ring (28) to improve its sealing performance.

9. The water tank according to claim 1, characterized in that: The liquid outlet valve assembly (31) comprises a valve body (311), a valve cover (312) and a valve stem (313); the valve cover (312) is arranged on the valve body (311) and cooperates with the valve body (311) to form a valve cavity (314); the second inlet (3142) is arranged on the valve body (311) and / or the valve cover (312); and the valve body (311) is provided with a first sealing component; The valve stem (313) is provided with a channel (3131) passing through the first end and the second end thereof; the first end of the valve stem (313) is provided with a second sealing component (3136) and passes through the valve cover (312) to extend into the valve cavity (314); a water outlet (3144) is formed between the first end of the valve stem (313) and the inner wall of the valve cavity (314); the first end of the channel (3131) forms a detergent outlet; the second end of the channel (3131) is connected to the first space (15) to form the first inlet (3141); the valve outlet (3143) is provided on the valve body (311) and is respectively connected to the water outlet (3144) and the detergent outlet; In which, the valve stem (313) can move along its axial direction and has a first position and a second position. When the valve stem (313) is in the first position, the first sealing component blocks the detergent outlet, and the second sealing component (3136) blocks the water outlet (3144); when the valve stem (313) is in the second position, the first sealing component opens the detergent outlet, and the second sealing component (3136) opens the water outlet (3144).

10. The water tank according to claim 9, characterized in that The liquid outlet valve assembly (31) further comprises a reset component (315), wherein the reset component (315) is disposed in the valve cavity (314) and is used to exert a force on the valve stem (313) to cause the valve stem (313) to move from the second position to the first position.

11. The water tank according to claim 9, characterized in that The water tank further comprises a second cover body (32), the liquid outlet valve assembly (31) being assembled on the second cover body (32) and forming a second cover assembly (3) together with the second cover body (32), the second cover assembly (3) being detachably arranged on the clean water inlet (131), and the cover top of the second cover body (32) having an opening (321) communicating with the valve outlet (3143) of the liquid outlet valve assembly (31).

12. The water tank according to claim 11, characterized in that The clean water inlet (131) is connected to a joint, the valve body (311) of the liquid outlet valve assembly (31) is connected to the inner side of the cover top of the second cover body (32), an annular cavity (322) is formed between the valve body (311) and the peripheral side of the cover body, and a second sealing ring (3112) is sleeved on the valve body (311); when the second cover assembly (3) is installed on the clean water inlet (131), the joint extends into the annular cavity (322), the second sealing ring (3112) is used to seal between the outer side of the valve body (311) and the inner side of the joint, and the inner side of the second cover body (32) is connected to the outer side of the joint.

13. The water tank according to claim 9, characterized in that The water tank further comprises a detergent tube (18), a first end of the detergent tube (18) being connected to a second end of the valve stem (313), and a second end of the detergent tube (18) being connected to a wall of the first space (15) and communicating with the first space (15).

14. A cleaning machine, comprising a machine body, wherein the machine body is provided with a third joint (4), characterized in that: The cleaning machine further comprises a water tank as claimed in any one of claims 1 to 13, wherein the water tank is detachably mounted on the machine body, and when the water tank is mounted on the machine body, the third joint (4) is connected to the liquid outlet valve assembly (31) and pushes the liquid outlet valve assembly (31) to open, and when the water tank is removed from the machine body, the liquid outlet valve assembly (31) is automatically closed.

Images