Water tank and floor scrubber

Abstract

The present application relates to a water tank and a floor scrubber, including a water tank body; a water tank shell, the water tank shell is arranged on the water tank body, the water tank shell is provided with a first opening and a second opening that are connected; and a lock body, the lock body is rotatably arranged on the water tank shell, and the lock body includes an operating part and a lock hook part, the operating part is passed through the first opening, and the lock hook part is passed through the second opening. The locking structure used to realize the detachable water tank in this solution is simple in composition, with a small number of parts and low cost, and the lock body can be locked or unlocked by pressing and rotating, and there will be no operation jamming problems due to size errors, etc., the use is smooth and the experience is good, and the potential hidden dangers of unlocking failure are eliminated.

Description

Technical Field

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

[0002] As an increasingly popular floor cleaning equipment, floor scrubbers have been widely used in various application scenarios in recent years. The equipment is usually equipped with a dual water tank design, one of which is responsible for supplying clean water, detergent and other cleaning media, and the other is responsible for collecting sewage recovered by the sewage suction mechanism. Whether it is a clean water tank or a sewage tank, they need to be frequently disassembled and assembled. The former needs to be disassembled frequently to replenish the water source, and the latter needs to dump the sewage and clean it.

[0003] In order to simplify the disassembly and assembly process, the water tank is connected to the main body of the floor scrubber through a detachable locking structure. However, the detachable locking structure in the current related technology mostly relies on the form of sliding and pressing, which requires the precise coordination of multiple components such as the slide, spring, and button with a lock hook. This type of design is not only complex in structure and increases manufacturing costs, but also in actual use, due to factors such as the size matching error between the slide and the button, the attenuation of the spring elastic performance, or rust after contact with water, it often leads to unsmooth operation and even jamming, which seriously affects the user experience and the smoothness of operation, and even worse, may cause the unlocking function to fail. Utility Model Content

[0004] Based on this, it is necessary to provide a water tank and a floor scrubber to address the problems of complex structure, poor operation smoothness and experience, and hidden dangers of unlocking failure in the existing technology.

[0005] In a first aspect of the present application, a water tank is provided, comprising:

[0006] Water tank body;

[0007] A water tank housing, the water tank housing being disposed on the water tank body, the water tank housing being provided with a first opening and a second opening which are connected to each other; and

[0008] The lock body is rotatably arranged on the water tank housing, and the lock body includes an operating part and a lock hook part, the operating part is penetrated through the first opening, and the lock hook part is penetrated through the second opening.

[0009] When the water tank of the present scheme is in use, the lock body is installed to the water tank shell and can rotate freely, and then the water tank body is installed to the water tank shell, thereby obtaining an assembled water tank, and then the water tank is directly placed on the body of the floor scrubber, so that the lock hook part of the lock body is locked with the lock seat on the body, and the assembly of the water tank and the body is completed; when the water tank needs to be removed, it is only necessary to press the operating part to drive the lock body to rotate, and the lock hook part will be separated from the lock seat to unlock the water tank, thereby facilitating the removal of the water tank; compared with the prior art, the locking structure used to realize the detachable water tank in the present scheme is simple in composition, with a small number of parts and low cost, and the lock body can be locked or unlocked by only pressing and rotating, and there will be no operation jamming problems due to size errors, etc., the use is smooth and the experience is good, and the potential hidden dangers of unlocking failure are eliminated.

[0010] The technical solution of this application is further described below:

[0011] In one embodiment, a mounting portion is provided on the top of the water tank body, the water tank housing comprises a water tank front shell and a water tank rear shell, the lock body is rotatably arranged on the water tank front shell, and the lock body is clamped between the water tank front shell and the mounting portion, and the mounting portion is clamped between the water tank front shell and the water tank rear shell;

[0012] The water tank front shell is provided with the first opening, and the water tank rear shell is provided with the second opening.

[0013] In one embodiment, the lock body also includes a main body, the operating part and the lock hook part are respectively arranged at opposite ends of the main body, a rotating shaft part is arranged on the main body, and a mounting groove is recessed in the front shell of the water tank, and the rotating shaft part is rotatably arranged in the mounting groove.

[0014] In one of the embodiments, the lock body also includes an elastic arm, one end of which is arranged on the main body, and the other end of the elastic arm is warped in a direction opposite to the bending direction of the hook body of the lock hook part. The front shell of the water tank is also provided with a guard edge, and the other end of the elastic arm abuts against the guard edge.

[0015] In one of the embodiments, the cross-sectional area of ​​the elastic arm increases gradually from an end away from the main body to an end connected to the main body.

[0016] In one embodiment, the water tank further comprises an air intake valve, the air intake valve comprises a valve stem and a soft retaining skirt, one end of the valve stem is formed with at least two protrusions protruding from the outer wall of the valve stem and arranged along the circumferential direction of the valve stem, a ventilation gap is formed between two adjacent protrusions, and the soft retaining skirt is arranged at the other end of the valve stem;

[0017] A mounting through hole is provided on the rear shell of the water tank, and the mounting through hole is communicated with the ventilation gap. The water tank body is provided with an air inlet hole aligned with the mounting through hole. The valve stem is passed through the mounting through hole so that the protrusion and the soft baffle skirt respectively abut against the side walls on opposite sides of the rear shell of the water tank. The aperture of the mounting through hole is larger than the diameter of the valve stem, and the diameter of the soft baffle skirt is larger than the aperture of the mounting through hole. The soft baffle skirt has an open state and a closed state. In the open state, the soft baffle skirt opens the opening of the mounting through hole so that the mounting through hole is communicated with the air inlet hole. In the closed state, the soft baffle skirt covers the opening of the mounting through hole.

[0018] In one embodiment, the water tank further includes a drain valve and a drain seat, a drain port is provided at the bottom of the water tank body, the drain valve is arranged at the drain port, and the drain valve has an on state and an off state, in the on state, the drain seat abuts against the drain valve, and the drain valve opens the drain port, and in the off state, the drain seat is separated from the drain valve, and the drain valve closes the drain port.

[0019] In one embodiment, the drain valve comprises a drain joint, a drain valve stem, an elastic member, a first seal, a second seal and a third seal. The drain joint is detachably connected to the drain port. The first seal is disposed at the top end of the drain valve stem. The drain valve stem is movably disposed in the drain joint so that the first seal can be in sealing contact with or separated from the drain joint. The elastic member is sleeved on the outside of the drain valve stem, and one end of the elastic member is in contact with the drain joint, and the other end of the elastic member is in contact with the drain valve stem. The second seal is installed on the outside of the drain joint and in sealing contact with the drain seat. The third seal is installed on the outside of the drain seat.

[0020] The drain seat is provided with a top column, and the top column is used to lift the drain valve stem to move.

[0021] In one embodiment, the drain valve further includes a first filter element and a second filter element, wherein the first filter element is disposed on the drain joint and extends into the interior of the water tank body, and the second filter element is disposed on the drain seat and located between the drain seat and the drain joint.

[0022] In one of the embodiments, the water tank further comprises a water replenishing cover, the water tank body further comprises a water replenishing port, the water replenishing cover is movably disposed on the rear shell of the water tank and can open or close the water replenishing port.

[0023] In a second aspect of the present application, a floor scrubber is also provided, comprising:

[0024] A fuselage, the fuselage comprising a rear shell of the fuselage, the rear shell of the fuselage being provided with a lock seat; and

[0025] The water tank as described above is detachably arranged on the body, and the lock body cooperates with the lock seat to be locked or unlocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic structural diagram of a water tank described in an embodiment.

[0029] Figure 2 for Figure 1 Schematic diagram of the structure from the back perspective.

[0030] Figure 3 It is a schematic structural diagram of a water tank front shell according to an embodiment.

[0031] Figure 4 It is a schematic diagram of the structure of the assembly of the water tank front shell and the lock body.

[0032] Figure 5 Schematic diagram of the structure of a lock body according to an embodiment.

[0033] Figure 6 This is the exploded structure diagram of the water tank.

[0034] Figure 7 Schematic diagram of the structure of an intake valve according to an embodiment.

[0035] Figure 8 Schematic diagram of the installation structure of the intake valve.

[0036] Fig. 9 This is a cross-sectional structural diagram of the water tank.

[0037] Fig.10 for Fig. 9 A local enlarged structural diagram of point A in the middle.

[0038] Description of reference numerals:

[0039] 100, water tank; 10, water tank body; 11, assembly part; 12, air inlet; 13, drain outlet; 14, water filling port; 20, water tank shell; 21, water tank front shell; 211, first opening; 212, mounting groove; 213, retaining edge; 22, water tank rear shell; 221, second opening; 222, mounting through hole; 30, lock body; 31, operating part; 32, lock hook part; 33, body part; 34, shaft part; 35, Elastic arm; 40, air intake valve; 41, valve stem; 42, soft skirt; 43, protrusion; 44, ventilation gap; 50, drain valve; 51, drain joint; 52, drain valve stem; 53, elastic member; 54, first sealing member; 55, second sealing member; 56, third sealing member; 57, sealing gasket; 58, first filter element; 59, second filter element; 60, drain seat; 61, top column; 70, water supply cap; 200, rear shell of fuselage. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that if the terms "thickness", "up", "down", "front", "back", "horizontal", "top", "bottom", "inside", "outside", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "upper", "lower" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0046] The present application provides a floor scrubber, specifically a vertical floor scrubber, that is, a vertical floor scrubber is used when working, and can be pushed and pulled by hand or driven by itself to complete floor cleaning operations.

[0047] Exemplarily, the floor scrubber includes: a body, a chassis and a water tank 100. The body is mounted on the chassis, and the water tank 100 is detachably arranged on the body. The chassis has power, which can realize the movement of the floor scrubber and reduce the pushing and pulling force of the user.

[0048] In addition, the chassis is also equipped with a floor brushing mechanism, a dirt suction mechanism, etc., which are respectively used to wash floor stains, recycle sewage generated on the floor, etc. Of course, other functional components can be installed on the chassis in other embodiments, which can be set according to actual needs, and will not be repeated here.

[0049] In the present application, the fuselage includes a fuselage rear shell 200, and the fuselage rear shell 200 is provided with a lock seat.

[0050] See also Figure 1 and Figure 2 , a water tank 100 is shown as an embodiment, including a water tank body 10, a water tank shell 20 and a lock body 30.

[0051] The water tank shell 20 is disposed on the water tank body 10 , so that the water tank body 10 is assembled with the fuselage rear shell 200 through the water tank shell 20 , thereby completing the installation and fixation of the water tank 100 on the fuselage.

[0052] Please continue reading Figures 1 to 5 The water tank housing 20 is provided with a first opening 211 and a second opening 221 which are connected to each other. The lock body 30 is rotatably arranged on the water tank housing 20, and the lock body 30 includes an operating portion 31 and a lock hook portion 32. The operating portion 31 is arranged through the first opening 211, and the lock hook portion 32 is arranged through the second opening 221. It can be understood that the first opening 211 is used to expose the operating portion 31 so that the user can press the operating portion 31, and the second opening 221 is used to expose the lock hook portion 32 so that the lock hook portion 32 of the lock body 30 can be locked or unlocked with the lock seat.

[0053] Optionally, the operating portion 31 is also provided with anti-skid patterns, which can prevent the user from slipping when pressing.

[0054] Optionally, the operation unit 31 is further marked with an unlocking mark. Setting the unlocking mark can enhance the unlocking function of the user operation unit 31 with an obvious mark, thereby reducing the education or learning cost of new users.

[0055] In summary, the implementation of the technical solution of this embodiment will have the following beneficial effects: when the water tank 100 of this solution is used, the lock body 30 is installed on the water tank shell 20 and can rotate freely, and then the water tank body 10 is installed on the water tank shell 20, thereby obtaining the assembled water tank 100, and then the water tank 100 is directly placed on the body of the floor scrubber, so that the lock hook part 32 of the lock body 30 is locked with the lock seat on the body, that is, the assembly of the water tank 100 and the body is completed; when the water tank 100 needs to be removed, only the operating part 31 needs to be pressed to drive the lock body 30 to rotate freely. 0 rotation, the lock hook portion 32 will be separated from the lock seat to unlock the water tank 100, thereby facilitating the removal of the water tank 100; compared with the prior art, the water tank 100 of this solution has a simple structure, and only needs to be provided with a lock body 30, and does not need to be configured with complex matching of parts such as slideways, springs, and buttons. The number of parts is small and the cost is low. The lock body 30 can be locked or unlocked by only pressing and rotating, and there will be no operation jamming problems due to size errors, etc. The use is smooth and the experience is good, eliminating the potential hidden dangers of unlocking failure.

[0056] Please continue reading Figure 6In an optional embodiment, the top of the water tank body 10 is provided with an assembly part 11, and the assembly part 11 is a plate body. It can be understood that the water tank body 10 is composed of a lower box body and a plate body installed on the top of the box body, and the two can be integrally formed or detachably assembled. The box body is used to hold liquid.

[0057] The water tank housing 20 includes a water tank front shell 21 and a water tank rear shell 22. The lock body 30 is rotatably arranged on the water tank front shell 21, and the lock body 30 is clamped between the water tank front shell 21 and the assembly part 11, and the assembly part 11 is clamped between the water tank front shell 21 and the water tank rear shell 22; the water tank front shell 21 is provided with a first opening 211, and the water tank rear shell 22 is provided with a second opening 221. Therefore, the lock body 30 can be limited between the assembly part 11 and the water tank front shell 21, and is not easy to loosen or move. It can only be reliably rotated to switch between the two states of locking and unlocking. The assembly part 11 is further limited between the water tank front shell 21 and the water tank rear shell 22, so as to assemble a complete water tank 100, and is connected to the fuselage rear shell 200 of the fuselage through the water tank rear shell 22.

[0058] Optionally, the water tank front shell 21, the assembly part 11, the water tank rear shell 22 and the body rear shell 200 can be connected and fixed by at least one of screw connection, snap connection, bonding, magnetic connection and the like, which can be selected according to actual needs.

[0059] Please continue reading Figures 3 to 5 Further, in another optional embodiment, the lock body 30 further includes a main body 33, the operating part 31 and the lock hook part 32 are respectively arranged at opposite ends of the main body 33, and a rotating shaft part 34 is also arranged on the main body 33, and a mounting groove 212 is recessed in the water tank front shell 21, and the rotating shaft part 34 is rotatably arranged in the mounting groove 212. The rotating shaft part 34 is installed in the mounting groove 212 to form a stable rotating fulcrum structure, providing the lock body 30 with the required degree of freedom for reciprocating rotation. The operating part 31 and the lock hook part 32 are respectively formed at the two ends of the main body 33, and a seesaw effect can be formed when the operating part 31 is pressed, ensuring that the operating part 31 and the lock hook part 32 are effectively linked, so that the locking and unlocking operations are reliable.

[0060] It can be understood that when the water tank 100 is placed on the body, the operating part 31 can be pulled upward to make the lock hook part 32 flip downward and lock with the lock seat on the rear shell 200 of the body, or the blocking structure on the lock seat can be used to apply an extrusion force to the lock hook part 32, thereby forcing the lock hook part 32 to rotate and lock with the lock seat.

[0061] In an optional embodiment of the present application, the lock body 30 also includes an elastic arm 35, one end of the elastic arm 35 is arranged on the main body 33, and the other end of the elastic arm 35 is warped in a direction opposite to the bending direction of the hook body of the lock hook portion 32. The water tank front shell 21 is also provided with a guard edge 213, and the other end of the elastic arm 35 abuts against the guard edge 213.

[0062] The lock body 30 is automatically rotated and reset under the action of the elastic pressure applied by the elastic arm 35, so that when the water tank 100 is placed on the fuselage, the lock hook portion 32 can be automatically engaged and locked with the lock seat under the action of the elastic pressure, and the lock hook portion 32 can be prevented from accidentally disengaging from the lock seat; on the other hand, when the operating portion 31 is pressed downward, the pressing force overcomes the elastic pressure and drives the lock hook portion 32 to flip upward, and the lock hook portion 32 is separated and unlocked from the lock seat, so that the water tank 100 is convenient to be removed from the fuselage. At this time, the operating portion 31 is released, and the lock body 30 automatically rotates and resets under the action of the elastic pressure applied by the elastic arm 35, so that when the water tank 100 is installed for the second time, the lock hook portion 32 is automatically locked with the lock seat, thereby improving the convenience of operation.

[0063] Furthermore, the cross-sectional area of ​​the elastic arm 35 increases from the end away from the body 33 to the end connected to the body 33. For example, the thickness of the elastic arm 35 increases from the end away from the body 33 to the end connected to the body 33. In this way, the elastic force can be controlled to produce nonlinear changes during the rotation process, that is, the initial force required to press the operating part 31 can be relatively small, and the pressing force when the lock body 30 is fully unlocked becomes relatively large, thereby preventing the unlocking of the water tank 100 from being triggered by mistake.

[0064] In the present application, the lock body 30 is a single component integrally formed by the injection molding process. With the high toughness of plastic, it has the advantages of frequent plastic deformation, avoiding breakage, and high reliability in use.

[0065] It should be noted that the water tank 100 of the above embodiments is not limited to the clean water tank or the sewage tank of the floor scrubber. When the water tank 100 of the above embodiments is a clean water tank, the water tank body 10 is used to contain clean water and / or cleaning media such as detergents to supply cleaning media to the floor, wet the floor, or dissolve stains during cleaning to facilitate stain removal; when the water tank 100 of the above embodiments is a sewage tank, the water tank body 10 is used to contain the dirty liquid mixture recovered by the sewage suction mechanism.

[0066] Please continue reading Figure 7 and Figure 8In addition, based on any of the above embodiments, the water tank 100 also includes an air intake valve 40, which includes a valve stem 41 and a soft baffle skirt 42. One end of the valve stem 41 is formed with at least two protrusions 43 protruding from the outer wall of the valve stem 41 and arranged along the circumferential direction of the valve stem 41, and a ventilation gap 44 is formed between two adjacent protrusions 43. The soft baffle skirt 42 is arranged at the other end of the valve stem 41.

[0067] The water tank rear shell 22 is provided with a mounting through hole 222, which is communicated with the ventilation gap 44. The water tank body 10 is provided with an air inlet 12 aligned with the mounting through hole 222. The valve stem 41 is passed through the mounting through hole 222, so that the protrusion 43 and the soft baffle skirt 42 respectively abut against the side walls on opposite sides of the water tank rear shell 22. The aperture of the mounting through hole 222 is larger than the diameter of the valve stem 41, and the diameter of the soft baffle skirt 42 is larger than the aperture of the mounting through hole 222. The soft baffle skirt 42 has an open state and a closed state. In the open state, the soft baffle skirt 42 opens the aperture of the mounting through hole 222, so that the mounting through hole 222 is communicated with the air inlet 12. In the closed state, the soft baffle skirt 42 covers the aperture of the mounting through hole 222.

[0068] When the water tank 100 is draining water outward, the air passes through the ventilation gap 44 and the installation through hole 222 in turn and pushes the soft skirt 42 open, and then flows into the air inlet and enters the inside of the water tank body 10, so as to keep the air pressure inside and outside the water tank body 10 balanced and ensure smooth drainage. When the water tank 100 stops draining water outward, due to the loss of air flow impact, the soft skirt 42 covers the opening of the installation through hole 222 under its own elastic force, thereby isolating the air inlet 12, so that the water in the water tank body 10 cannot reversely rush out of the outside of the water tank body 10 through the air inlet 12, and has a better sealing and anti-leakage effect.

[0069] Optionally, the soft skirt 42 is a silicone pad, which has excellent elastic deformation and recovery capabilities, as well as good sealing and waterproof performance.

[0070] Please continue reading Figure 6 , Fig. 9 and Fig.10 In another optional embodiment, the water tank 100 further includes a drain valve 50 and a drain seat 60, and a drain port 13 is provided at the bottom of the water tank body 10. The drain valve 50 is provided at the drain port 13, and the drain valve 50 has an on state and an off state. In the on state, the drain seat 60 abuts against the drain valve 50, and the drain valve 50 opens the drain port 13. In the off state, the drain seat 60 is separated from the drain valve 50, and the drain valve 50 closes the drain port 13.

[0071] When the water tank 100 is placed on the body, the drain valve 50 is assembled with the drain seat 60, and the drain seat 60 abuts against the drain valve 50, thereby automatically opening the drain valve 50, and the clean water in the water tank body 10 can be discharged from the drain port 13; on the contrary, when the water tank 100 is removed from the body, the drain seat 60 no longer abuts against the drain valve 50, and the drain valve 50 automatically closes to block the drain port 13, and no clean water leakage occurs.

[0072] Specifically, in the above embodiment, the drain valve 50 includes a drain joint 51, a drain valve stem 52, an elastic member 53, a first sealing member 54, a second sealing member 55 and a third sealing member 56. The drain joint 51 is detachably connected to the drain outlet 13. The first sealing member 54 is arranged at the top end of the drain valve stem 52. The drain valve stem 52 is movably arranged in the drain joint 51 so that the first sealing member 54 can be sealed and abutted with or separated from the drain joint 51. The elastic member 53 is sleeved on the outside of the drain valve stem 52, and one end of the elastic member 53 abuts against the drain joint 51, and the other end of the elastic member 53 abuts against the drain valve stem 52. The second sealing member 55 is installed on the outside of the drain joint 51 and is sealed and abutted against the drain seat 60. The third sealing member 56 is installed on the outside of the drain seat 60.

[0073] The drain seat 60 is provided with a top column 61, and the top column 61 is used to lift the drain valve stem 52 to move.

[0074] The drain port 13 is specifically a columnar structure protruding from the bottom wall of the water tank body 10. The outer wall of the drain port 13 is provided with an external thread, and the drain connector 51 has an internal thread. The internal thread and the external thread are screwed together so that the drain connector 51 is conveniently, labor-savingly and firmly screwed to the drain port 13. In the initial state, the elastic member 53 is slightly compressed to generate an elastic thrust, which pushes the drain valve stem 52 to drive the first sealing member 54 to seal and press the drain connector 51, so that the cleaning medium in the water tank body 10 cannot flow out from the inside of the drain connector 51; when the water tank 100 is placed on the machine body, the top column 61 pushes the drain valve stem 52 upward, and the elastic member 53 is further compressed while pushing the first sealing member 54 to separate from the drain connector 51. At this time, the cleaning medium in the water tank body 10 can flow into the inside of the drain connector 51 and finally flow out. It can be understood that the second sealing member 55 is used to improve the sealing performance between the drain joint 51 and the drain seat 60, and the third sealing member 56 is used to improve the sealing performance between the drain seat 60 and the fuselage, so as to prevent leakage problems from occurring.

[0075] Furthermore, on the basis of the above embodiment, the drain valve 50 further includes a first filter 58 and a second filter 59. The first filter 58 is arranged on the drain connector 51 and extends into the interior of the water tank body 10, and the second filter 59 is arranged on the drain seat 60 and is located between the drain seat 60 and the drain connector 51. The first filter 58 and the second filter 59 can filter the cleaning medium discharged from the water tank body 10 in two steps, which can prevent impurities from flowing to the ground with water or clogging the sewer pipe; on the other hand, by twisting the drain connector 51, the drain valve 50 can be quickly removed from the drain port 13, which is convenient for cleaning or replacing the dirty first filter 58 and / or second filter 59, so as to ensure the filtering capacity and service life of the first filter 58 and the second filter 59.

[0076] Optionally, the first filter element 58 and the second filter element 59 can be any one or a combination of filter materials such as filter screen, filter membrane, non-woven fabric, etc.

[0077] The drain valve 50 further includes a sealing gasket 57 , which is installed in contact with the end surface of the drain port 13 and the drain joint 51 to prevent water leakage.

[0078] In addition, in another optional embodiment, the water tank 100 further includes a water replenishment cover 70, and the water tank body 10 further includes a water replenishment port 14. The water replenishment cover 70 is movably disposed on the water tank rear shell 22 and can open or close the water replenishment port 14. When the water replenishment cover 70 is separated from the water replenishment port 14, the water replenishment port 14 is opened, so as to facilitate the replenishment of the cleaning medium in the water tank body 10. After that, the water replenishment cover 70 is sealed and installed to the water replenishment port 14 to cover the water replenishment port 14 and prevent water leakage.

[0079] Furthermore, the water replenishment port 14 is provided on the side wall of the upper part of the water tank body 10. Such arrangement can facilitate the user to lay the water tank 100 flat to add water, thereby adapting to the faucet that is too low in height.

[0080] Furthermore, the water tank 100 also includes a water supply pipe, which is passed through the water supply port 14, one end of which is located inside the water tank 100, and the other end is detachably fixed to the water supply port 14, and the water supply cover 70 is movably arranged on the water tank rear shell 22 and can open or close the water supply port 14. In this way, when water supply is needed, the water supply cover 70 is first opened, and then one end of the water supply pipe located on the water supply port 14 is removed, and it is connected to the faucet to achieve water supply, and after the water supply is completed, the water supply pipe is fixed to the water supply port 14, and the water supply cover 70 is covered. Further, the above-mentioned water supply pipe is selected to be a pipe with elastic expansion and contraction, such as a corrugated pipe. In this way, the water supply pipe can be lengthened or shortened as needed to adapt to faucets at different distances or heights.

[0081] In another optional embodiment, the water tank body 10 is further provided with a transparent portion along the height direction, and the outer wall of the transparent portion is further marked with a water level scale line and a corresponding water level number. This arrangement is convenient for the user to grasp the amount of the cleaning medium in the water tank 100, so that the user can replenish the cleaning medium in time without overflowing during replenishment.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A water tank, characterized in that: include: Water tank body; A water tank housing, the water tank housing being disposed on the water tank body, the water tank housing being provided with a first opening and a second opening which are connected to each other; and The lock body is rotatably arranged on the water tank housing, and the lock body includes an operating part and a lock hook part, the operating part is penetrated through the first opening, and the lock hook part is penetrated through the second opening.

2. The water tank according to claim 1, characterized in that: The top of the water tank body is provided with an assembly part, the water tank shell includes a water tank front shell and a water tank rear shell, the lock body is rotatably arranged on the water tank front shell, and the lock body is clamped between the water tank front shell and the assembly part, and the assembly part is clamped between the water tank front shell and the water tank rear shell; The water tank front shell is provided with the first opening, and the water tank rear shell is provided with the second opening.

3. The water tank according to claim 2, characterized in that: The lock body also includes a main body, the operating part and the lock hook part are respectively arranged at opposite ends of the main body, a rotating shaft part is arranged on the main body, and a mounting groove is recessed in the front shell of the water tank, and the rotating shaft part is rotatably arranged in the mounting groove.

4. The water tank according to claim 3, characterized in that The lock body also includes an elastic arm, one end of which is arranged on the main body, and the other end of the elastic arm is warped in a direction opposite to the bending direction of the hook body of the lock hook part. The water tank front shell is also provided with a guard edge, and the other end of the elastic arm abuts against the guard edge.

5. The water tank according to claim 4, characterized in that: The cross-sectional area of ​​the elastic arm increases from one end away from the main body to one end connected to the main body.

6. The water tank according to claim 2, characterized in that: The water tank further comprises an air intake valve, the air intake valve comprising a valve stem and a soft baffle skirt, one end of the valve stem is formed with at least two protrusions protruding from the outer wall of the valve stem and arranged along the circumferential direction of the valve stem, a ventilation gap is formed between two adjacent protrusions, and the soft baffle skirt is arranged at the other end of the valve stem; The water tank rear shell is provided with a mounting through hole, the mounting through hole is communicated with the ventilation gap, the water tank body is provided with an air inlet hole aligned with the mounting through hole, the valve stem is passed through the mounting through hole, so that the protrusion and the soft baffle skirt respectively abut against the side walls of the water tank rear shell on opposite sides, the aperture of the mounting through hole is larger than the diameter of the valve stem, and the diameter of the soft baffle skirt is larger than the aperture of the mounting through hole; The soft baffle skirt has an open state and a closed state. In the open state, the soft baffle skirt opens the opening of the mounting through hole so that the mounting through hole is connected with the air inlet hole. In the closed state, the soft baffle skirt covers the opening of the mounting through hole.

7. The water tank according to claim 1, characterized in that The water tank also includes a drain valve and a drain seat. A drain port is provided at the bottom of the water tank body. The drain valve is arranged at the drain port, and the drain valve has an on state and an off state. In the on state, the drain seat abuts against the drain valve, and the drain valve opens the drain port. In the off state, the drain seat is separated from the drain valve, and the drain valve closes the drain port.

8. The water tank according to claim 7, characterized in that The drain valve comprises a drain joint, a drain valve stem, an elastic member, a first seal, a second seal and a third seal. The drain joint is detachably connected to the drain port. The first seal is arranged at the top end of the drain valve stem. The drain valve stem is movably arranged in the drain joint so that the first seal can be in sealing contact with or separated from the drain joint. The elastic member is sleeved on the outside of the drain valve stem, and one end of the elastic member is in contact with the drain joint, and the other end of the elastic member is in contact with the drain valve stem. The second seal is installed on the outside of the drain joint and in sealing contact with the drain seat. The third seal is installed on the outside of the drain seat. The drain seat is provided with a top column, and the top column is used to lift the drain valve stem to move.

9. The water tank according to claim 8, characterized in that The drain valve also includes a first filter element and a second filter element. The first filter element is arranged on the drain joint and extends into the interior of the water tank body. The second filter element is arranged on the drain seat and is located between the drain seat and the drain joint.

10. A floor scrubber, characterized in that: include: A fuselage, the fuselage comprising a rear shell of the fuselage, the rear shell of the fuselage being provided with a lock seat; and The water tank according to any one of claims 1 to 9, wherein the water tank is detachably arranged on the body, and the lock body cooperates with the lock seat to be locked or unlocked.

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