Locking mechanism and cleaning device

Abstract

The present invention relates to the technical field of cleaning devices, and discloses a locking mechanism and a cleaning device. The locking mechanism includes: a button having a pressing portion; a first locking tongue provided at one end of the button opposite to the pressing portion; a second locking tongue provided at one end of the button opposite to the pressing portion, and the second locking tongue and the first locking tongue respectively extend outward to opposite sides of the button; wherein, a first component is movably connected to a second component, the second component is movably connected to a third component, the button is provided on the first component. In the locked state, the first locking tongue locks the first component to the second component, and the second locking tongue locks the second component to the third component. In the unlocked state, an external force acts on the pressing portion, causing the button to move to unlock the second component and the first component in sequence. By arranging the first locking tongue and the second locking tongue on opposite sides of the button, the locking mechanism can lock two components and can unlock them in sequence, reducing the number of locking mechanisms for locking the first component and the second component.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to a locking structure and a cleaning device. Background Art

[0002] A locking mechanism is used to lock or unlock components. Usually, a locking mechanism locks one component. When it is necessary to lock multiple different components, different locking structures are required. In this way, there will be too many parts and the operation will be cumbersome. Summary of the Invention

[0003] In view of this, the present invention provides a cleaning device to solve the problem in the prior art that multiple locking mechanisms are used to lock or unlock different components, resulting in too many parts and cumbersome operation.

[0004] On the one hand, the present invention provides a locking mechanism, which includes: a button having a pressing portion; a first locking tongue provided at an end of the button opposite to the pressing portion; a second locking tongue provided at an end of the button opposite to the pressing portion, and the second locking tongue and the first locking tongue extend outwardly from opposite sides of the button respectively; wherein, a first component is movably connected to a second component, the second component is movably connected to a third component, the button is provided on the first component. In the locked state, the first locking tongue locks the first component to the second component, and the second locking tongue locks the second component to the third component. In the unlocked state, an external force acts on the pressing portion, causing the button to move to unlock the second component and the first component in sequence.

[0005] The beneficial effect is that by arranging the first locking tongue and the second locking tongue on opposite sides of the button, the first component and the third component can be stacked in this direction. The locking mechanism can be used to lock the first component to the second component or unlock it, and lock the second component to the third component or unlock it. Therefore, two components can be locked by one locking mechanism and can be unlocked in sequence, reducing the number of locking mechanisms for locking the first component and the second component, saving costs, and simplifying the unlocking process.

[0006] In an optional embodiment, the button further has a connecting portion opposite to the pressing portion, the first locking tongue and the second locking tongue are respectively located on opposite sides of the connecting portion, and the connecting portion is adapted to connect a first elastic member.

[0007] The beneficial effect is that by providing the first elastic member on the button, the power required for the button during the locking or unlocking process can be obtained, and the automatic reset of the button can also be realized through the elasticity of the first elastic member.

[0008] In an alternative embodiment, the first locking tongue and the second locking tongue are respectively formed with hook portions, and a gap is formed between the outer side surface corresponding to the button and the hook portions to hook the second component and the third component.

[0009] The beneficial effect is that by respectively providing hook portions on the first locking tongue and the second locking tongue to achieve locking or unlocking of the first component and the second component, the locking or unlocking process is simplified.

[0010] In an alternative embodiment, an end portion of the outer side surface of the hook portion of the first locking tongue has a first guiding surface, and an end portion of the outer side surface of the hook portion of the second locking tongue has a second guiding surface.

[0011] The beneficial effect is that by providing the guiding surfaces, the locking or unlocking process can be made smoother.

[0012] On the other hand, the present invention also provides a cleaning device, including: a dust cup assembly, including a dust cup housing having an opening and an openable dust cup lid, the dust cup lid being the first component, and the dust cup housing being the second component; the locking mechanism according to any one of the above, the button of the locking mechanism being provided on the dust cup lid; a main body assembly, including a main body housing, the main body housing being the third component; wherein, a first locking portion is provided on the dust cup housing, and the first locking portion cooperates with the first locking tongue of the locking mechanism to lock the dust cup lid, and a second locking portion is provided on the main body housing, and the second locking portion cooperates with the second locking tongue of the locking mechanism to fix the dust cup assembly to the main body assembly.

[0013] The beneficial effect is that by arranging the locking mechanism on the dust cup lid, the locking mechanism cooperates with the first locking portion through the first locking tongue to lock the dust cup lid, and cooperates with the second locking portion through the second locking tongue to fix the dust cup assembly on the main body housing, so that the main body housing and the dust cup lid can be locked and unlocked, without separately setting locking structures for the main body housing and the dust cup lid respectively, which simplifies the unlocking process when cleaning the internal dust of the dust cup assembly and also improves the cleaning efficiency of the dust cup assembly.

[0014] In an alternative embodiment, the opening edge of the dust cup housing extends inwards to form the first locking portion, and the first locking tongue hooks the first locking portion; and / or the side wall of the main body housing extends inwards to form the second locking portion, and the side wall of the main body housing encloses a locking groove facing the dust cup assembly, the second locking portion is located at the edge of the locking groove, and the second locking tongue extends into the locking groove and is hooked and locked with the second locking portion.

[0015] In an alternative embodiment, the outer bottom surface of the first locking portion has a third guiding surface, which cooperates with the first guiding surface of the first locking tongue for guiding. The outer top surface of the second locking portion has a fourth guiding surface, which cooperates with the second guiding surface of the second locking tongue for guiding.

[0016] In an alternative embodiment, the first guiding surface, the second guiding surface, the third guiding surface and the fourth guiding surface are all inclined surfaces.

[0017] In an alternative embodiment, the dust cup cover is rotatably connected to the dust cup housing. An installation groove is provided at the free end of the dust cup cover. The first elastic member of the locking mechanism is connected in the installation groove. A limiting rib is provided on the side wall of the button, and a limiting hole is provided on the groove wall of the installation groove. The limiting hole cooperates with the limiting rib to limit the elastic extension stroke of the button.

[0018] The beneficial effects are as follows. The limiting rib can not only cooperate with the limiting hole to limit the moving distance of the first locking tongue and the second locking tongue, but also the two limiting ribs can support the button, making the force balanced. When the button moves, the force is balanced, so that the first locking tongue and the second locking tongue are more stable during locking or unlocking. In addition, the limiting hole cooperating with the limiting rib can also prevent the button from popping out of the installation groove under the elastic force of the first elastic member.

[0019] In an alternative embodiment, a jacking mechanism is provided in the cavity enclosed by the main housing. The jacking mechanism can abut against the dust cup cover to jack up the dust cup assembly.

[0020] The beneficial effect is that the dust cup assembly can be conveniently taken out by jacking up the dust cup assembly through the jacking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a three-dimensional structural schematic diagram of a locking mechanism according to an embodiment of the present invention;

[0023] Figure 2 is a cross-sectional structural schematic diagram of a locking mechanism according to an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional structural schematic diagram of a cleaning device according to an embodiment of the present invention;

[0025] Figure 4 is Figure 3 The enlarged structural schematic diagram of part A in

[0026] Figure 5 The partial three-dimensional structural schematic diagram of the main body assembly of a cleaning device according to an embodiment of the present invention;

[0027] Figure 6 The structural schematic diagram of the unlocking process of the dust cup assembly of a cleaning device according to an embodiment of the present invention;

[0028] Figure 7 The sectional structural schematic diagram of the dust cup assembly of a cleaning device according to an embodiment of the present invention in the initial state of unlocking the dust cup cover;

[0029] Figure 8 The sectional structural schematic diagram of the dust cup assembly of a cleaning device according to an embodiment of the present invention during the process of unlocking the dust cup cover;

[0030] Figure 9 The structural schematic diagram of the dust cup assembly of a cleaning device according to an embodiment of the present invention in the initial state of locking the dust cup cover;

[0031] Figure 10 Figure 9 The enlarged structural schematic diagram of part B in

[0032] Figure 11 The schematic diagram of the partial sectional structure of the dust cup assembly of a cleaning device according to an embodiment of the present invention gradually realizing the locking of the dust cup cover;

[0033] Figure 12 The sectional structural schematic diagram of the dust cup assembly of a cleaning device according to an embodiment of the present invention in the locked state;

[0034] Figure 13 The sectional structural schematic diagram of the initial state of the installation process of the dust cup assembly of a cleaning device according to an embodiment of the present invention;

[0035] Figure 14 The sectional structural schematic diagram of the dust cup cover of the dust cup assembly of a cleaning device according to an embodiment of the present invention realizing locking after installation.

[0036] Explanation of reference numerals:

[0037] 10. Cleaning device;

[0038] 100. Locking mechanism; 200. Dust cup assembly; 300. Main body assembly;

[0039] 110. Button; 111. Pressing part; 113. Connecting part;

[0040] 120, First locking tongue; 130, Second locking tongue; 140, First elastic member; 150, Limit rib;

[0041] 1101, First guiding surface; 1102, Second guiding surface;

[0042] 210, Dust cup housing; 211, First locking portion; 212, Rotating rib; 220, Dust cup cover; 230, Mounting groove; 240, Sealing ring;

[0043] 2101, Third guiding surface;

[0044] 310, Main body housing; 311, Second locking portion; 312, Locking groove; 313, Limiting portion; 314, Rotational mating groove; 330, Lifting mechanism;

[0045] 3101, Fourth guiding surface. Detailed implementation manners

[0046] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] The cleaning device can be a mite cleaner. When the current mite cleaner is working, the suction port on the bottom surface contacts the surface to be cleaned, and dirt such as dust and mites on the surface to be cleaned is sucked into the dust cup by a blower. The dust cup specifically includes a dust cup housing, a dust cup cover and a filtering device. The dust cup is detachably arranged on the main machine assembly, and the dust cup assembly is arranged above the cleaning assembly. The air with garbage can be filtered through the filtering device, so that the garbage stays in the dust cup, and the clean air enters the vacuum motor from the air outlet. The dust cup cover is detachably arranged on the dust cup assembly, and the garbage in the dust cup can be cleaned by opening the dust cup cover.

[0048] In order to unlock the dust cup assembly and open the dust cup cover of the existing mite cleaner, a locking structure for locking and unlocking the dust cup assembly is provided. The locking structure includes a locking tongue, an unlocking button and a spring. The dust cup opening structure includes a dust cup opening button and a spring. Therefore, in order to open the dust cup from unlocking, a total of 5 parts are required, resulting in too many parts, too high cost, and poor user experience as the user needs to press two different buttons.

[0049] The following will be combined with Figures 1 to 14 , to describe the embodiments of the present invention.

[0050] As shown in Figure 1 and Figure 2As shown, according to an embodiment of the present invention, on the one hand, a locking mechanism 100 is provided. The locking mechanism 100 includes: a button 110, a first locking tongue 120, and a second locking tongue 130. The button 110 has a pressing portion 111. The first locking tongue 120 is provided at one end of the button 110 opposite to the pressing portion 111. The second locking tongue 130 is provided at one end of the button 110 opposite to the pressing portion 111, and the second locking tongue 130 and the first locking tongue 120 extend outwardly toward opposite sides of the button 110 respectively. Wherein, a first component is movably connected to a second component, and the second component is movably connected to a third component. The button 110 is provided on the first component. In the locked state, the first locking tongue 120 locks the first component to the second component, and the second locking tongue 130 locks the second component to the third component. In the unlocked state, an external force acts on the pressing portion 111 to cause the button 110 to move to unlock the second component and the first component in sequence.

[0051] The above-mentioned locking mechanism 100 is used to lock or unlock the first component to or from the second component, and lock or unlock the second component to or from the third component. Since the first locking tongue 120 and the second locking tongue 130 are arranged on opposite sides of the button 110, the first component and the third component can be stacked in this direction. Therefore, two components can be locked by one locking mechanism 100 and can be unlocked in reverse sequence.

[0052] Wherein, the first locking tongue 120 and the second locking tongue 130 can be symmetrically arranged or staggered. In addition, when the pressing portion 111 of the button 110 is pressed and the button 110 moves, the first locking tongue 120 and the second locking tongue 130 also move synchronously. Their moving direction is mainly the pressing direction. The moving distance of the button 110 along the moving direction is related to the components to be locked or unlocked. It can be understood that the moving distance of the button 110 can be divided into multiple moving lengths. One moving length can lock or unlock the second component, and another moving length can lock or unlock the first component. Through different moving lengths of the locking mechanism 100, two or more components can be locked or unlocked, reducing the number of locking structures for locking two or more components, simplifying the structure, and making the unlocking or locking efficiency higher.

[0053] In another embodiment, continuing with Figure 2 As shown, the button 110 further has a connecting portion 113 opposite to the pressing portion 111. The first locking tongue 120 and the second locking tongue 130 are respectively located on opposite sides of the connecting portion 113. The connecting portion 113 is adapted to connect a first elastic member 140. Wherein, the first elastic member 140 can be a spring. By providing the first elastic member 140 on the button 110, the power required for the button 110 during locking or unlocking can be obtained, and the automatic reset of the button 110 can also be achieved through the elasticity of the first elastic member 140.

[0054] Specifically, the connecting portion 113 is provided with a convex structure and an annular groove. The annular groove is arranged around the convex structure, and the first elastic member 140 is installed in the annular groove around the convex structure. The convex structure can guide the elastic deformation of the first elastic member 140 and also make the installation of the first elastic member 140 more firm.

[0055] In another embodiment, the first locking tongue 120 and the second locking tongue 130 are respectively formed with hook portions. A gap is formed between the hook portions and the outer side surface corresponding to the button 110 to hook the second component and the third component, so as to lock the components. Similarly, the hook portions can also easily cooperate with the components to be locked to lock the components.

[0056] In another embodiment, the end of the outer side surface of the hook portion of the first locking tongue 120 has a first guiding surface 1101, and the end of the outer side surface of the hook portion of the second locking tongue 130 has a second guiding surface 1102. Through the arrangement of the first guiding surface 1101 and the second guiding surface 1102, the process of locking or unlocking can be made smoother.

[0057] As Figure 3 and Figure 4 shown, according to an embodiment of the present invention, on the other hand, a cleaning device 10 is provided, including: a dust cup assembly 200, a locking mechanism 100, and a main body assembly 300. The dust cup assembly 200 includes a dust cup housing 210 with an opening and an openable dust cup lid 220. The dust cup lid 220 is the first component, the dust cup housing 210 is the second component, and the button 110 of the locking mechanism 100 is arranged on the dust cup lid 220. The main body assembly 300 includes a main body housing 310, and the main body housing 310 is the third component; wherein, a second locking portion 311 is provided on the dust cup housing 210, and the first locking portion 211 cooperates with the first locking tongue 120 of the locking mechanism 100 to lock the dust cup lid 220. A second locking portion 311 is provided on the main body housing 310, and the second locking portion 311 cooperates with the second locking tongue 130 of the locking mechanism 100 to fix the dust cup assembly 200 to the main body assembly 300.

[0058] The above-mentioned cleaning device 10 can be a mite remover. The main body assembly 300 has a main body housing 310, and the dust cup assembly 200 is detachably connected to the main body housing 310. After the dust cup assembly 200 sucks dust, it can be detached from the main body housing 310, then the dust cup lid 220 is opened, the collected dust is cleaned, and then it is installed and used again.

[0059] Among them, the dust cup housing 210 and the main body housing 310 are located on opposite sides of the dust cup lid 220. The dust cup lid 220 is adjacent to the main body housing 310 and in contact with it. The locking mechanism 100 is arranged on the dust cup lid 220. Spaces are respectively formed between the first locking tongue 120 and the second locking tongue 130 of the locking mechanism 100 and the corresponding sides of the button 110, so that the first locking portion 211 and the second locking portion 311 can be accommodated.

[0060] Specifically, in the locked state, the locking mechanism 100 cooperates with the first locking portion 211 through the first locking tongue 120 to lock the dust cup lid 220, and cooperates with the second locking portion 311 through the second locking tongue 130 to fix the dust cup assembly 200 on the main body housing 310; in the unlocked state, the locking mechanism 100 can first unlock the main body housing 310 by disengaging the second locking tongue 130 from the second locking portion 311, so that the dust cup assembly 200 is disengaged from the main body housing 310, then the dust cup assembly 200 is removed from the main body housing 310, and then the dust cup lid 220 is unlocked by disengaging the first locking tongue 120 from the first locking portion 211, so as to be able to clean the dust collected in the dust cup assembly 200.

[0061] Therefore, the locking mechanism 100 can lock and unlock the main body housing 310 and the dust cup lid 220, without separately setting locking structures for the main body housing 310 and the dust cup lid 220, which simplifies the unlocking process when cleaning the internal dust of the dust cup assembly 200 and also improves the cleaning efficiency of the dust cup assembly 200.

[0062] Continuing to combine Figure 4 As shown, the opening edge of the dust cup housing 210 extends inward to form the first locking portion 211, and the first locking tongue 120 hooks the first locking portion 211; and / or the side wall of the main body housing 310 extends inward to form the second locking portion 311, and the side wall of the main body housing 310 encloses a locking groove 312 facing the dust cup assembly 200. The second locking portion 311 is located at the edge of the locking groove 312, and the second locking tongue 130 extends into the locking groove 312 and is hooked and locked with the second locking portion 311.

[0063] The above-mentioned dust cup housing 210 has a first extension portion extending into the dust cup housing 210 at the end that is buckled with or can be opened with the dust cup lid 220, that is, the tail of the dust cup housing 210. A first gap is formed between the first extension portion and the dust cup housing 210. The first gap and the first extension portion together constitute the first locking portion 211, so that the hook portion of the first locking tongue 120 can be placed in the first gap and hook the first extension portion, thereby realizing the locked state of the first locking tongue 120 and the first locking portion 211.

[0064] Similarly, as shown in Figure 5As shown, at the tail of the main housing 310, there is a second extension extending into the cavity of the main housing 310, and a connecting plate connected to the tail housing of the main housing 310 is provided inside the main housing 310. The connecting plate is bent so as to form a locking groove 312 with the main housing 310. The inner side wall opposite to the second extension in the locking groove 312 can form a limiting portion 313. The second extension is located at the top of the locking groove 312, so that a second gap can be formed between the second extension and the bottom wall of the locking groove 312. The second locking tongue 130 can extend into the locking groove 312, and the hook portion of the second locking tongue 130 enters the second gap and hooks the second extension, thereby realizing the locking state between the second locking tongue 130 and the second locking portion 311.

[0065] In another embodiment, continue to combine Figure 4 As shown, the dust cup cover 220 is rotatably connected to the dust cup housing 210. An installation groove 230 is provided at the free end of the dust cup cover 220. The first elastic member 140 of the locking mechanism 100 is connected in the installation groove 230. A limiting rib 150 is provided on the side wall of the button 110, and a limiting hole is provided on the groove wall of the installation groove 230. The limiting hole cooperates with the limiting rib 150 to limit the elastic extension stroke of the button 110.

[0066] One end of the above-mentioned dust cup cover 220 is rotatably connected to the dust cup housing 210. A plate member is provided at the free end of the dust cup cover 220, and the installation groove 230 is surrounded by the plate member. The button 110 can be slidably connected into the installation groove 230 to lock or unlock the main housing 310 and the dust cup cover 220 by changing the displacement. Specifically, the first elastic member 140 is connected to the bottom wall of the installation groove 230. Among them, a convex structure can also be provided at the bottom of the installation groove 230, and an annular groove is provided around the convex structure, which can be used to install the first elastic member 140, so that the installation of the first elastic member 140 is more firm, and can also better guide the extension or compression of the first elastic member 140. The button 110 is connected to the installation groove 230 through the first elastic member 140. When an external force presses the pressing portion 111 of the button 110, the first elastic member 140 will be compressed, the first elastic member 140 stores energy, and the button 110 moves to the right, thereby driving the first locking tongue 120 and the second locking tongue 130 to move to the right by different distances synchronously, and the unlocking of the main housing 310 and the dust cup cover 220 can be realized. When the external force is withdrawn, the first elastic member 140 resets, and the first locking tongue 120 can be driven to move to the left to lock the main housing 310 and the dust cup cover 220.

[0067] Since the dust cup assembly 200 needs to be removed for cleaning, the structure in which the button 110 is slidably connected to the main body of the dust cup assembly 200 can adopt the first elastic member 140, which has a simple and reliable structure, does not occupy the space of the dust cup assembly 200, and does not affect the reduction of the volume inside the dust cup assembly 200. Of course, other control methods combining electronic control or electricity can also be adopted, which will not be elaborated here.

[0068] Among them, when the button 110 moves, the limiting ribs 112 also move synchronously. The limiting ribs 112 can be arranged vertically in two or more than two, so that the limiting ribs 112 can not only cooperate with the limiting holes to limit the moving distance of the first locking tongue 120 and the second locking tongue 130, but also the two limiting ribs 112 can play a role in supporting the button 110, making the force balanced. When the button 110 is moving, the force is balanced, so the first locking tongue 120 and the second locking tongue 130 are more stable during the locking or unlocking process. In addition, the limiting holes can also prevent the button 110 from popping out of the installation groove 230 under the elastic force of the first elastic member 140.

[0069] In addition, considering that after unlocking the main housing 310, it is not necessary to immediately unlock the dust cup cover 220. Therefore, the hooked part of the second locking tongue 130 and the second locking portion 311 has less connection than the hooked part of the first locking tongue 120 and the first locking portion 211, so that after the second locking tongue 130 disengages from the second locking portion 311, the first locking tongue 120 and the first locking portion 211 are still in the locked state.

[0070] In another embodiment, as Figure 6 shown, a jacking mechanism 330 is provided in the cavity enclosed by the main housing 310. The jacking mechanism 330 can abut against the dust cup cover 220 to jack up the dust cup assembly 200 after the dust cup assembly 200 is unlocked.

[0071] Specifically, after the first locking tongue 120 moves and unlocks the main housing 310, the jacking mechanism 330 can jack up the dust cup assembly 200. At this time, the dust cup assembly 200 can be conveniently detached from the main housing 310. The jacking mechanism 330 includes a second elastic member. Figure 6 The figure shows the process of the jacking mechanism 330 jacking up the dust cup assembly 200 after the second locking portion 311 is disengaged from the second locking tongue 130. Among them, press the button 110, and the button 110 moves to the right, so that the first locking tongue 120 and the second locking tongue 130 move to the right synchronously until the second locking tongue 130 disengages from the second locking portion 311. At this time, the first locking portion 211 still cooperates with the first locking tongue 120 to present a locked state. At this time, under the elastic force of the second elastic member, the dust cup assembly 200 moves upward, so that the second locking tongue 130 moves upward until the second locking tongue 130 is located above the second locking portion 311. Thus, the unlocking process of the second locking tongue 130 from the main housing 310 is completed.

[0072] Then, the button 110 is reset under the elastic force of the first elastic member 140 until the limiting rib 112 abuts against the inner side wall of the limiting hole. During this process, the first locking tongue 120 is reset synchronously, so that the first locking tongue 120 locks the first locking portion 211.

[0073] The above-mentioned second elastic member includes a top cover and a spring. The spring can be a compression spring. One end of the spring is connected to the bottom of the main housing 310, and the other end of the spring is connected to the inner wall of the top cover, so that the second elastic member can stably lift the dust cup assembly 200.

[0074] Continue to combine Figure 6 As shown, the main housing 310 is provided with a rotary mating groove 314, and the dust cup assembly 200 is provided with a rotating rib 212. The rotating rib 212 is inserted into the rotary mating groove 314. When the dust cup assembly 200 is rotated, the rotating rib 212 can be disengaged from the rotary mating groove 314, so that after the dust cup assembly 200 is lifted, the dust cup assembly 200 can be removed from the main housing 310.

[0075] In another embodiment, continue to combine Figure 2 and Figure 4 As shown, the outer bottom surface of the first locking portion 211 has a third guiding surface 2101, and the third guiding surface 2101 cooperates with the first guiding surface 1101 of the first locking tongue 120 for guiding. The outer top surface of the second locking portion 311 has a fourth guiding surface 3101, and the fourth guiding surface 3101 cooperates with the second guiding surface 1102 of the second locking tongue 130 for guiding. The first guiding surface, the second guiding surface 1102, the third guiding surface 2101 and the fourth guiding surface 3101 are all inclined surfaces.

[0076] The bottom of the first locking portion 211 is provided with a third guiding surface 2101, and the outer wall of the top of the first locking tongue 120 is provided with a first guiding surface 1101 that cooperates with the third guiding surface 2101 for pushing; and / or the top of the second locking portion 311 is provided with a fourth guiding surface 3101 that cooperates with the second guiding surface 1102 of the second locking tongue 130 for pushing.

[0077] Continue to combine Figure 13 and Figure 14As shown, the process of installing the dust cup assembly 200 onto the main housing 310 is opposite to the process of the dust cup assembly 200 being lifted. Among them, when the dust cup assembly 200 needs to be installed onto the main housing 310, the rotating rib 212 on the dust cup assembly 200 is inserted into the rotary mating groove 314 of the main housing 310, and then the dust cup assembly 200 is pressed downward. The dust cup cover 220 of the dust cup assembly 200 abuts against the second elastic member. At the same time, the bottom of the second locking tongue 130 will contact the top of the second locking portion 311. When the dust cup assembly 200 is pressed downward, the second elastic member retracts, and the second guiding surface 1102 of the second locking tongue 130 slides downward along the fourth guiding surface 3101 of the second locking portion 311 until the second guiding surface 1102 disengages from the fourth guiding surface 3101, and the hook portion of the second locking tongue 130 is placed in the locking hook groove. The button 110 is reset under the elastic action of the first elastic member 140, so that the second locking tongue 130 locks the second locking portion 311, thereby realizing the fixed connection between the dust cup assembly 200 and the main housing 310.

[0078] During the process of the dust cup assembly 200 detaching from the main housing 310, as Figure 6 shown, the button 110 is pressed to make the second locking tongue 130 disengage from the second locking portion 311, and the dust cup assembly 200 rises under the action of the lifting mechanism 330. During this process, the button 110 is reset, so that the second guiding surface 1102 of the second locking tongue 130 contacts the fourth guiding surface 3101 of the second locking portion 311 and slowly slides upward until the second guiding surface 1102 disengages from the fourth guiding surface 3101, realizing the unlocking of the main housing 310.

[0079] During the opening process of the dust cup cover 220, as Figure 7 and Figure 8 shown, the pressing portion 111 of the button 110 is pressed to make the button 110 move to the right until the first locking tongue 120 disengages from the first locking portion 211. Then, under the action of its own gravity, the free end of the dust cup cover 220 will fall, causing the dust cup cover 220 to rotate around the rotating shaft, so that the dust cup cover 220 can be opened. Among them, when the free end of the dust cup cover 220 falls, and at the same time the button 110 is reset under the elastic force of the first elastic member 140, the first guiding surface 1101 of the first locking tongue 120 will contact the third guiding surface 2101 of the first locking portion 211, which will accelerate the flipping of the dust cup cover 220, thereby accelerating the opening speed of the dust cup cover 220.

[0080] During the process of the dust cup cover 220 being buckled with the dust cup housing 210, as Figure 9 and Figure 10As shown, when the dust cup cover 220 is pushed upward, the first guiding surface 1101 of the first locking tongue 120 comes into contact with the third guiding surface 2101 of the first locking portion 211, enabling the third guiding surface 2101 to push the first guiding surface 1101, causing the button 110 to move rightward until the third guiding surface 2101 disengages from the first guiding surface 1101. The free end of the dust cup cover 220 continues to rise under the action of an external force until the first locking tongue 120 disengages from the first locking portion 211 and is located above the first locking portion 211. At this time, the button 110 resets under the elastic force of the first elastic member 140, as Figure 11 shown, enabling the first locking tongue 120 and the first locking portion 211 to be hooked and locked, thereby achieving the closure of the dust cup cover 220 and the dust cup housing 210.

[0081] The state of the dust cup cover 220 after being locked is as Figure 12 shown.

[0082] Furthermore, one end of the dust cup cover 220 is rotatably connected to the dust cup assembly 200, and a sealing ring 240 is provided at the rotating end of the dust cup cover 220, enabling the dust cup assembly 200 to be cleaned when the free end of the dust cup cover 220 is opened without having to disassemble the entire dust cup cover 220. Sealing is achieved through the sealing ring 240, preventing dust from leaking out.

[0083] More specifically, a dust cup cavity is formed within the dust cup assembly 200, and the dust cup cover 220 seals the dust cup cavity, making the dust cup cavity a sealed chamber. The button 110 is disposed outside the dust cup cavity, on the side of the dust cup cover 220 facing the inside of the dust cup cavity and away from the rotating end. A small protrusion is provided, and an inner groove is provided on the body of the dust cup assembly 200. The small protrusion and the inner groove are cooperatively inserted and a sealing structure is provided. The portion of the dust cup cover 220 extending out of the dust cup cavity cooperatively engages with the body of the dust cup assembly 200 and can cooperate with the first locking tongue 120 to be locked.

[0084] More specifically, a rotating shaft is provided on the main body of the dust cup assembly 200, and a rotating shaft groove is provided on the dust cup cover 220. The rotating shaft groove of the dust cup cover 220 cooperates with the rotating shaft, enabling the dust cup cover 220 to rotate around the rotating shaft. A sealing ring 240 groove is provided on the main body of the dust cup assembly 200, and the sealing ring 240 is installed therein. The sealing ring 240 functions to seal when the dust cup cover 220 is closed.

[0085] In another embodiment, as Figure 11As shown, the whole cleaning device is divided into two major components: the main unit component 300 and the dust cup component 200. A groove is provided on the main unit component 300. After the rotating rib 212 of the dust cup component 200 is inserted into the groove, it can rotate. A main housing 310 is provided on the main unit component 300. A second locking portion 311 is provided on the main housing 310 and cooperates with the second locking tongue 130 of the button 110 to fix the dust cup component 200 on the main unit component 300.

[0086] The top surface of the second locking portion 311 is provided with an inclined surface that is inclined from top to bottom and towards the edge. This inclined surface is the fourth guiding surface 3101. The bottom of the second locking tongue 130 is provided with a second guiding surface 1102. The second guiding surface 1102 is inclined from bottom to top and towards the edge. When the dust cup component 200 is installed on the main unit component 300, the fourth guiding surface 3101 pushes the second guiding surface 1102 of the second locking tongue 130, causing the button 110 to move to the right, so that the second locking tongue 130 cooperates with the second locking portion 311 to lock.

[0087] A jacking mechanism 330 is provided inside the main housing 310. After the second locking tongue 130 of the button 110 is disengaged from the second locking portion 311, the jacking mechanism 330 jacks up the dust cup component 200 to give the user an unlocking feedback for the dust cup component 200. The inner side wall of the locking groove 312 forms a limiting portion 313 for the second locking tongue 130, so that the second locking tongue 130 does not continue to move to the right after being disengaged from the second locking portion 311, so that the position of the button 110 can be restricted when the dust cup component 200 is unlocked, so that the dust cup component 200 is unlocked while the dust cup cover 220 is not opened.

[0088] The dust cup housing 210 of the dust cup component 200 is provided with a rotating rib 212. After the rotating rib 212 is inserted into the groove of the main unit component 300, the dust cup component 200 can be rotatably installed on the main unit component 300. The dust cup housing 210 of the dust cup component 200 is provided with a rotating shaft, and the dust cup cover 220 is provided with a rotating shaft groove. The rotating shaft groove of the dust cup cover 220 cooperates with the rotating shaft to enable the dust cup cover 220 to rotate around the rotating shaft. The dust cup housing 210 of the dust cup component 200 is provided with a sealing ring 240 groove, and a sealing ring 240 is installed inside. The sealing ring 240 plays a sealing role when the dust cup cover 220 is closed.

[0089] On the dust cup cover 220 of the dust cup assembly 200, there is a button 110 installation groove 230, in which the button 110 and the first elastic member 140 are installed. The first elastic member 140 enables the button 110 to reset when there is no external force. On the side wall of the installation groove 230, there are button limit holes, which cooperate with the limit ribs 150 on the button 110 to prevent the spring from pushing the button 110 out of the button 110 installation groove 230. On the dust cup shell 210 body, there is a first locking portion 211, which cooperates with the first locking tongue 120 of the button 110 to fix the dust cup assembly 200 to the host assembly 300. The first locking portion 211 is provided with an inclined surface to facilitate the movement of the first locking tongue 120 of the button 110 in place.

[0090] The button 110 is provided with a first locking tongue 120 and a second locking tongue 130. The first locking tongue 120 cooperates with the first locking portion 211 of the dust cup shell 210 to lock the dust cup cover 220; the second locking tongue 130 cooperates with the second locking portion 311 of the host shell 310 to fix the dust cup assembly 200 to the host assembly 300. Above the first locking tongue 120 of the button 110, there is an inclined surface, which cooperates with the inclined surface of the first locking portion 211 on the dust cup shell 210, so that the button 110 can automatically move to the right when the dust cup cover 220 is closed; below the second locking tongue 130 of the button 110, there is an inclined surface, which cooperates with the inclined surface of the second locking portion 311 of the host shell 310, so that the button 110 can automatically move to the right when the dust cup assembly 200 is installed on the host assembly 300. The button 110 is provided with upper and lower limit ribs 150 to prevent the spring from pushing the button 110 out of the button 110 installation groove 230.

[0091] When disassembling the dust cup assembly 200, press the button 110 to the bottom with your hand and then release it. The button 110 abuts against the limiting portion 313 formed by the inner side wall of the locking groove 312 of the host shell 310 and cannot move any further. At this time, the second locking tongue 130 on the button 110 disengages from the second locking portion 311 of the host shell 310, and the dust cup assembly 200 is unlocked, but the dust cup cover 220 is not yet unlocked. At the same time, the lifting mechanism 330 will lift the dust cup assembly 200 by a certain distance. The button 110 resets under the action of the spring, and the second locking tongue 130 disengages from the second locking portion 311, and the dust cup assembly 200 is completely unlocked. At this time, the dust cup assembly 200 can be removed.

[0092] When opening the dust cup cover, press the button 110 to the bottom with your hand. The first locking tongue 120 of the button 110 disengages from the first locking portion 211 of the dust cup cover 220, and the dust cup cover 220 is unlocked. Rotate the dust cup cover 220 counterclockwise to open it, and the garbage in the dust cup can be poured out. After the dust cup cover 220 is opened, the button 110 resets under the action of the spring.

[0093] The process of closing the dust cup cover is as Figure 8As shown in the figure. When the dust cup cover 220 is closed, rotate the dust cup cover 220 clockwise. The inclined surface below the first locking portion 211 of the dust cup housing 210 cooperates with the inclined surface above the first locking tongue 120 of the button 110 to move the button 110 to the right. When the dust cup cover 220 is closed in place, the first locking tongue 120 on the button 110 resets under the action of the spring, and the first locking tongue 120 is stuck on the first locking portion 211, and the dust cup cover 220 is locked.

[0094] The locking process of the dust cup assembly 200 is as Figure 9 shown in the figure. When installing the dust cup assembly 200, first insert the rotating rib 212 of the dust cup assembly 200 into the groove of the host assembly 300 and then rotate the dust cup assembly 200. The inclined surface at the second locking tongue 130 of the button 110 contacts the inclined surface above the second locking portion 311 of the host housing 310, causing the button 110 to move to the right. When the dust cup is installed in place, the second locking tongue 130 on the button 110 is stuck on the second locking portion 311 under the action of the spring, and the dust cup assembly 200 is locked on the host assembly 300.

[0095] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A locking mechanism, characterized in that, The locking mechanism (100) includes: A button (110) having a pressing portion (111); A first locking tongue (120) provided at one end of the button (110) opposite to the pressing portion (111); A second locking tongue (130) provided at one end of the button (110) opposite to the pressing portion (111), and the second locking tongue (130) and the first locking tongue (120) extend outwardly toward opposite sides of the button (110); Wherein, a first component is movably connected to a second component, the second component is movably connected to a third component, the button (110) is provided on the first component. In the locked state, the first locking tongue (120) locks the first component to the second component, and the second locking tongue (130) locks the second component to the third component. In the unlocked state, an external force acts on the pressing portion (111), causing the button (110) to move to sequentially unlock the second component and the first component.

2. The locking mechanism according to claim 1, characterized in that, The button (110) further has a connecting portion (113) disposed opposite to the pressing portion (111), the first locking tongue (120) and the second locking tongue (130) are respectively located on opposite sides of the connecting portion (113), and the connecting portion (113) is adapted to connect a first elastic member (140).

3. The locking mechanism according to claim 1 or 2, characterized in that, The first locking tongue (120) and the second locking tongue (130) are respectively formed with hook portions, and a gap is formed between the outer side surfaces of the hook portions corresponding to the button (110) to hook the second component and the third component.

4. The locking mechanism according to claim 3, characterized in that, The end of the outer side surface of the hook portion of the first locking tongue (120) has a first guiding surface (1101), and the end of the outer side surface of the hook portion of the second locking tongue (130) has a second guiding surface (1102).

5. A cleaning device, characterized in that, It includes: A dust cup assembly (200) including a dust cup housing (210) having an opening and an openable dust cup lid (220), the dust cup lid (220) being the first component and the dust cup housing (210) being the second component; The locking mechanism (100) according to any one of claims 1 to 4, the button (110) of the locking mechanism (100) being provided on the dust cup lid (220); A main body assembly (300) including a main body housing (310), the main body housing (310) being the third component; Wherein, a first locking portion (211) is provided on the dust cup housing (210), the first locking portion (211) cooperates with the first locking tongue (120) of the locking mechanism (100) to lock the dust cup lid (220), and a second locking portion (311) is provided on the main body housing (310), the second locking portion (311) cooperates with the second locking tongue (130) of the locking mechanism (100) to fix the dust cup assembly (200) to the main body assembly (300).

6. The cleaning device according to claim 5, characterized in that, The opening edge of the dust cup housing (210) extends inward to form the first locking portion (211), and the first locking tongue (120) hooks the first locking portion (211); and / or the side wall of the main housing (310) extends inward to form the second locking portion (311), and the side wall of the main housing (310) encloses a locking groove (312) disposed toward the dust cup assembly (200), the second locking portion (311) is located at the edge of the locking groove (312), and the second locking tongue (130) extends into the locking groove (312) and is hooked and locked with the second locking portion (311).

7. The cleaning device according to claim 5, wherein, The outer bottom surface of the first locking portion (211) has a third guiding surface (2101), the third guiding surface (2101) cooperates with the first guiding surface (1101) of the first locking tongue (120) for guiding, the outer top surface of the second locking portion (311) has a fourth guiding surface (3101), and the fourth guiding surface (3101) cooperates with the second guiding surface (1102) of the second locking tongue (130) for guiding.

8. The cleaning device according to claim 7, characterized in that, The first guiding surface, the second guiding surface (1102), the third guiding surface (2101), and the fourth guiding surface (3101) are all inclined surfaces.

9. The cleaning device according to any one of claims 5 to 8, characterized in that, The dust cup cover (220) is rotatably connected to the dust cup housing (210), an installation groove (230) is provided at the free end of the dust cup cover (220), the first elastic member (140) of the locking mechanism (100) is connected in the installation groove (230), a limiting rib (150) is provided on the side wall of the button (110), and a limiting hole is provided on the groove wall of the installation groove (230), and the limiting hole cooperates with the limiting rib (150) to limit the elastic extension stroke of the button (110).

10. The cleaning device according to any one of claims 5 to 8, characterized in that A jacking mechanism (330) is provided in the cavity enclosed by the main housing (310), and the jacking mechanism (330) can abut against the dust cup cover (220) to jack up the dust cup assembly (200).

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