Cover flip structure and water purifier

Abstract

The present invention relates to the technical field of drinking equipment, and discloses a cover flip structure and a water purifier, comprising a mounting base, a cover, a rotating crankshaft, and a synchronous locking mechanism, wherein the cover can flip relative to the mounting base, and the flip state includes a first-stage flip state, one end of the rotating crankshaft is rotatably connected to the mounting base, and the other end is rotatably connected to the cover, and the cover is connected to the mounting base via at least two rotating crankshafts, and the synchronous locking mechanism is disposed between the cover and the rotating crankshaft. When the cover drives the rotating crankshaft to rotate relative to the mounting base to the first-stage flip state, the synchronous locking mechanism locks the cover and the rotating crankshaft to prevent the two from rotating relative to each other. The cover of the present application is not easily detached under the action of external force, thereby preventing impurities from entering the raw water tank through the cover detachment point and contaminating the water quality, or the cover from falling into the raw water tank, and the cover and at least two rotating crankshafts can be started synchronously to improve the smoothness of the cover opening.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking equipment, and in particular to a cover plate flip structure and a drinking purifier. Background Art

[0002] Drinking equipment with a raw water tank, such as a water purifier and a water dispenser, usually requires a cover to be installed at the water inlet of the raw water tank. The cover is used to block the water inlet and prevent dust and impurities from entering the raw water tank.

[0003] The assembly form of the cover plate and the raw water tank is mostly independent, that is, the raw water tank and the cover plate are independent of each other and can be disassembled separately. The cover plate is not fixed and can be freely taken out. Although this assembly form can meet the needs of users to take the cover plate when changing water to a certain extent, and because the cover plate is an independent and non-fixed component, the appearance assembly gap of the whole machine and the deformation of the parts are also better controlled. However, such a design also has a major disadvantage, that is, the cover plate is not fixed. Usually, the outer size of the cover plate is comparable to the outline size of the water inlet of the raw water tank, so during the process of opening, closing and taking the cover plate out, the cover plate may fall off or fall into the raw water tank. Such a situation will greatly reduce the user experience. In addition, since the cover plate is not fixed, it is easy to fall off when it is subjected to external force, which will also make it easy for debris to enter the raw water tank, causing water quality damage, blockage of the water inlet and outlet of the raw water tank, and even the risk of blockage of the entire machine pipeline. Summary of the Invention

[0004] In view of this, the present invention provides a cover flip structure and a water purifier to solve the problem that the existing cover is independent and not fixed, which makes it easy to fall off, allowing debris to easily enter the raw water tank, causing water quality damage, blockage of the water inlet and outlet of the raw water tank, and even the risk of blockage of the entire machine pipeline.

[0005] The first aspect of the present invention provides a cover flipping structure, including a mounting base, a cover, a rotating crankshaft and a synchronous locking mechanism. The cover can be flipped relative to the mounting base, and the flipping state includes a first-level flipping state. One end of the rotating crankshaft can be rotatably connected to the mounting base, and the other end can be rotatably connected to the cover. The cover is connected to the mounting base through at least two rotating crankshafts. The synchronous locking mechanism is arranged between the cover and the rotating crankshaft. In the process of the cover driving the rotating crankshaft to rotate relative to the mounting base to the first-level flipping state, the synchronous locking mechanism locks the cover and the rotating crankshaft to prevent the two from rotating relative to each other.

[0006] Beneficial effect: The cover plate and the mounting base are connected by at least two rotating crankshafts. Compared with the cover plate arranged in an independent and split manner, the cover plate of the present application is not easy to fall off under the action of external force, which avoids impurities entering the raw water tank through the cover plate falling off point to pollute the water quality or the cover plate falling into the raw water tank, and a synchronous locking mechanism is set between the cover plate and the rotating crankshaft. In the process of the cover plate driving the rotating crankshaft to rotate relative to the mounting base to the first-level flipping state, the synchronous locking mechanism can lock the cover plate and the rotating crankshaft, thereby preventing the cover plate and the rotating crankshaft from rotating relative to each other, ensuring that in the process of the cover plate rotating to the first-level flipping state, the cover plate and the rotating crankshaft always maintain a locked state without relative rotation, avoiding the situation where the at least two rotating crankshafts on both sides start (move) asynchronously due to unbalanced force when the cover plate is opened, causing the cover plate to twist and start unsteadily, so that the cover plate and at least two rotating crankshafts can start synchronously when starting in the first-level flipping state, thereby improving the smoothness of the cover plate opening.

[0007] In an optional embodiment, the flipping state also includes a second-level flipping state. After the cover plate reaches the first-level flipping state, the cover plate can flip from the first-level flipping state to the second-level flipping state relative to the rotating crankshaft, and in the process of the cover plate flipping from the first-level flipping state to the second-level flipping state, the synchronous locking mechanism is unlocked to enable the cover plate to rotate relative to the rotating crankshaft.

[0008] Beneficial effect: The cover plate and the rotating crankshaft are locked and unlocked by a synchronous locking mechanism, and the cover plate is designed to be a two-stage flipping form, that is, when the cover plate flips to the first-stage flipping state, the cover plate flips with the connection point between the rotating crankshaft and the mounting base as the rotation center. When the cover plate flips from the first-stage flipping state to the second-stage flipping state, the synchronous locking mechanism is unlocked so that the cover plate can continue to flip with the connection point with the rotating crankshaft as the rotation center, thereby expanding the flipping angle range of the cover plate, making it convenient for the cover plate to avoid a larger space, and facilitating water addition or other operations at the water inlet.

[0009] In an optional embodiment, the synchronous locking mechanism includes a locking ratchet and an elastic locking portion, the locking ratchet is connected to the cover plate, the locking ratchet has a first locking bevel, and the elastic locking portion is telescopically arranged at one end of the rotating crankshaft connected to the cover plate. During the process of flipping the cover plate to the first-level flipping state, the elastic locking portion elastically abuts against the first locking bevel under the action of elastic force, so that the cover plate is locked to the rotating crankshaft. During the process of flipping the cover plate from the first-level flipping state to the second-level flipping state, the locking ratchet presses down the elastic locking portion to make the elastic locking portion disengage from the first locking bevel, so that the cover plate is unlocked from the rotating crankshaft.

[0010] Beneficial effect: When the cover is flipped to the first-stage flipping state, the elastic locking part elastically abuts against the first locking inclined groove under the action of elastic force, thereby locking the cover and the rotating crankshaft, so that the cover and the rotating crankshaft are flipped relative to the mounting base. When the cover continues to flip from the first-stage flipping state to the second-stage flipping state, the cover drives the locking ratchet to rotate relative to the elastic locking part, thereby applying downward pressure to the elastic locking part through the first locking inclined groove to elastically contract the elastic locking part, and then the elastic locking part gradually disengages from the first locking inclined groove, so that the cover and the rotating crankshaft are unlocked, and the cover can continue to flip relative to the rotating crankshaft to the second-stage flipping state.

[0011] In an optional embodiment, the elastic locking portion has a second locking bevel groove, and when the cover plate is flipped to the first flipping state, the second locking bevel groove is engaged with the first locking bevel groove.

[0012] Beneficial effect: By further arranging a second locking bevel on the elastic locking part, the second locking bevel is engaged with the first locking bevel to enhance the limiting between the elastic locking part and the locking ratchet, thereby improving the locking stability between the cover plate and the rotating crankshaft during the flipping process to the first-level flipping state, and reducing the risk of mislocking during the flipping process.

[0013] In an optional embodiment, the elastic locking portion includes a locking pin and a locking spring, the locking pin is movably arranged in the locking mounting groove of the rotating crankshaft, the locking pin is suitable for cooperating with the first locking bevel groove, the second locking bevel groove is arranged on the surface of the locking pin facing the locking ratchet, and the locking spring is arranged in the locking mounting groove and connected to the end of the locking pin away from the locking ratchet.

[0014] Beneficial effect: When the cover is flipped to the first-stage flipping state, the locking pin elastically abuts against the first locking bevel under the elastic force of the locking spring and the second locking bevel is engaged with the first locking bevel, thereby locking the cover and the rotating crankshaft. When the cover continues to flip from the first-stage flipping state to the second-stage flipping state, the cover drives the locking ratchet to rotate relative to the elastic locking part, so that the second locking bevel is gradually separated from the first locking bevel and the locking pin is subjected to downward pressure through the first locking bevel, so that the locking spring elastically contracts, and then the locking pin gradually disengages from the first locking bevel, thereby realizing unlocking of the cover and the rotating crankshaft.

[0015] In an optional embodiment, the cover plate flipping structure also includes a damping mechanism, which is arranged on the rotating crankshaft. The damping mechanism is in frictional contact with the inner wall of the mounting base. In the process of the rotating crankshaft driving the damping mechanism to flip, the damping mechanism frictionally slides relative to the inner wall of the mounting base.

[0016] Beneficial effect: When the cover is closed, the synchronous locking mechanism always locks the cover and the rotating crankshaft. Furthermore, through the provided damping mechanism, the cover can be in friction contact with the inner wall of the mounting base without applying external force or under slight external force impact, thereby increasing the pre-tightening force when the cover is closed, and achieving a tighter cover on the mounting base, preventing the cover from shaking and reducing the appearance gap of the cover. At the same time, when the cover is flipped to the first-level flipping state, the rotating crankshaft synchronously drives the damping mechanism to slide frictionally relative to the inner wall of the mounting base, which can enhance the flipping resistance of the cover, increase the damping feeling of opening the cover and the feel of opening and closing the cover, and improve the opening and closing stability of the cover.

[0017] In an optional embodiment, the damping mechanism includes a damping pin and a damping spring, the outer end of the damping pin abuts against the inner wall of the mounting base, one end of the damping spring is connected to the rotating crankshaft, and the other end of the damping spring is connected to the inner end of the damping pin, and the damping pin abuts against the inner wall of the mounting base under the elastic force of the damping spring.

[0018] Beneficial effect: Under the elastic force of the damping spring, the outer end of the damping pin abuts against the inner wall of the mounting base, thereby enhancing the friction between the rotating crankshaft and the mounting base, and improving the preload force of the cover plate. When the rotating crankshaft synchronously drives the damping pin and the damping spring to flip, the outer end of the damping pin is driven to overcome the friction and slide on the inner wall of the mounting base, thereby realizing the damping flipping of the cover plate. The damping spring realizes flexible abutment between the damping pin and the mounting base, avoiding excessive wear caused by rigid contact between the two.

[0019] In an optional embodiment, the rotating crankshaft is provided with a damping mounting groove, the damping mechanism also includes a damping seat, the damping seat is installed in the damping mounting groove, the damping pin is movably provided on the damping seat, and the damping spring is provided between the inner end of the damping pin and the inner wall of the damping mounting groove.

[0020] Beneficial effect: The damping pin is movably arranged in the damping mounting groove through the damping seat, and the elastic force of the damping spring pushes the damping pin to move relative to the damping seat and the rotating crankshaft, so that the outer end of the damping pin elastically abuts against the inner wall of the mounting base, thereby achieving frictional abutment between the two.

[0021] In an optional embodiment, a damping groove is provided on the inner wall of the mounting base, and the damping groove is provided along the movement trajectory of the damping pin, and the outer end of the damping pin frictionally abuts against the damping groove.

[0022] Beneficial effect: By setting a damping groove on the inner wall of the mounting base along the movement trajectory of the damping pin, the damping pin always slides along the damping groove when flipping, thereby improving the movement accuracy of the damping pin and ensuring stable flipping of the cover.

[0023] In an optional embodiment, the rotating crankshaft is a U-shaped flip ring, one end of the U-shaped flip ring connected to the mounting base is a plane, and one end of the U-shaped flip ring connected to the cover plate is set to an involute profile. In the first-stage flipping state, the mounting base clamps and limits the U-shaped flip ring.

[0024] Beneficial effect: The rotating crankshaft is specifically set as a U-shaped flip ring, and the base is installed in the first-level flip state to clamp and limit the U-shaped flip ring to position the U-shaped flip ring, thereby preventing it from rotating during the process of flipping the cover plate to the second-level flip state, thereby improving the reliability of the secondary flip.

[0025] In an optional embodiment, in the first-level flipping state, the angle α between the cover plate and the top surface of the mounting base is 0°<α≤90°, and in the second-level flipping state, the angle β between the cover plate and the top surface of the mounting base is 90°<β≤180°.

[0026] Beneficial effect: When the cover plate completes the first-level flipping, the angle α between the cover plate and the top surface of the mounting base is within a reasonable range; when the cover plate completes the second-level flipping, the angle β between the cover plate and the top surface of the mounting base is within a range of at least greater than 90°, thereby completely avoiding the space above the water filling port, making it convenient to add water or perform other operations above the water filling port.

[0027] A second aspect of the present invention further provides a water purifier comprising a main body, a raw water tank, and the cover plate flip structure of the present invention. The raw water tank is connected to the main body and has a water inlet. The cover plate is disposed over the water inlet via the cover plate flip structure. Because the water purifier of the present invention includes the cover plate flip structure of the present invention, the water purifier of the present invention has the same technical effects as the cover plate flip structure and will not be further described here.

[0028] In an optional embodiment, the installation base in the cover flip structure is the fuselage or the raw water tank.

[0029] Beneficial effect: the cover flip structure is set on the fuselage or the original water tank to cover the water inlet.

[0030] In an optional embodiment, the mounting base in the cover flip structure is connected to the fuselage or the raw water tank via a snap-fit ​​structure.

[0031] Beneficial effect: the rotating crankshaft is first connected to the mounting base, and then the rotating crankshaft and the cover plate are installed as a whole on the fuselage or the raw water tank through the mounting base to achieve modular installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of the three-dimensional structure of the cover flip structure according to an embodiment of the present invention;

[0034] Figure 2 A front view of the cover flip structure according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the overall disassembly structure of the cover plate flip structure according to an embodiment of the present invention;

[0036] Figure 4 A partial cross-sectional view of a cover plate flip structure according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the overall assembly of the rotating crankshaft, the damping mechanism and the elastic locking portion according to an embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the overall disassembly of the rotating crankshaft, the damping mechanism and the elastic locking portion according to an embodiment of the present invention;

[0039] Figure 7 This is a structural schematic diagram of a synchronous locking mechanism in a locked state according to an embodiment of the present invention;

[0040] Figure 8 This is a structural schematic diagram of the synchronous locking mechanism in an unlocked state according to an embodiment of the present invention;

[0041] Figure 9 A schematic structural diagram of the synchronous locking mechanism when the cover is flipped to the second-stage flipping state according to an embodiment of the present invention;

[0042] Figure 10 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0043] Figure 11 A schematic diagram of the cover plate of an embodiment of the present invention being flipped from a closed state to a first-stage flipping state;

[0044] Figure 12Schematic diagram of the cover plate flipping from the first flipping state to the second flipping state according to an embodiment of the present invention.

[0045] Figure 13 Schematic diagram of the angle between the cover plate and the top surface of the mounting base when the cover plate is in the first flip state according to an embodiment of the present invention;

[0046] Figure 14 Schematic diagram of the angle between the cover plate and the top surface of the mounting base during the process of flipping the cover plate to the second flipping state according to an embodiment of the present invention;

[0047] Figure 15 Schematic diagram of the structure of a water purifier according to an embodiment of the present invention.

[0048] Description of reference numerals:

[0049] 1. Mounting base; 11. Connecting pin; 12. Connecting shaft; 2. Rotating crankshaft; 21. Locking mounting slot; 22. Damping mounting slot; 3. Cover plate; 4. Synchronous locking mechanism; 41. Locking ratchet; 411. First locking bevel; 412. Ratchet; 42. Elastic locking portion; 421. Locking pin; 4211. Second locking bevel; 422. Locking spring; 5. Damping mechanism; 51. Damping pin; 52. Damping spring; 53. Damping seat; 54. Damping slot; 100. Raw water tank; 101. Water inlet; 200. Body. DETAILED DESCRIPTION

[0050] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0052] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0053] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] The following combination Figures 1 to 14 , describing embodiments of the present invention.

[0055] According to an embodiment of the present invention, on the one hand, a cover flipping structure is provided, including a mounting base 1, a cover 3, a rotating crankshaft 2 and a synchronous locking mechanism 4, wherein the cover 3 can be flipped relative to the mounting base 1, and the flipping state includes a first-level flipping state, one end of the rotating crankshaft 2 can be rotatably connected to the mounting base 1, and the other end can be rotatably connected to the cover 3, the cover 3 is connected to the mounting base 1 through at least two rotating crankshafts 2, and the synchronous locking mechanism 4 is arranged between the cover 3 and the rotating crankshaft 2. In the process of the cover 3 driving the rotating crankshaft 2 to rotate relative to the mounting base 1 to the first-level flipping state, the synchronous locking mechanism 4 locks the cover 3 and the rotating crankshaft 2 to prevent the two from rotating relative to each other.

[0056] The cover plate flip structure of this embodiment is connected to the cover plate 3 and the mounting base 1 by at least two rotating crankshafts 2. Compared with the cover plate 3 set as an independent split type, the cover plate 3 of this application is not easy to fall off under the action of external force, which prevents impurities from entering the raw water tank 100 through the falling part of the cover plate 3 to pollute the water quality or the cover plate 3 from falling into the raw water tank 100. A synchronous locking mechanism 4 is set between the cover plate 3 and the rotating crankshaft 2. When the cover plate 3 drives the rotating crankshaft 2 to rotate relative to the mounting base 1 to the first level flip state, the synchronous locking mechanism 4 The cover plate 3 can be locked with the rotating crankshaft 2 to prevent the cover plate 3 and the rotating crankshaft 2 from rotating relative to each other, ensuring that the cover plate 3 and the rotating crankshaft 2 always maintain a locked state without relative rotation during the process of the cover plate 3 rotating to the first-level flipping state, avoiding the situation where the unbalanced force when the cover plate 3 is opened causes at least two rotating crankshafts 2 on both sides to start (move) asynchronously, causing the cover plate 3 to twist and start unsteadily, so that the cover plate 3 and at least two rotating crankshafts 2 can start synchronously when starting in the first-level flipping state, thereby improving the opening stability of the cover plate 3.

[0057] It should be noted that, since the cover plate 3 and the mounting base 1 are connected by at least two rotating crankshafts 2, and the rotating crankshaft 2 is rotatably connected to the mounting base 1 and the cover plate 3, there are two rotational degrees of freedom at both ends of the rotating crankshaft 2. When the force for opening the cover plate 3 is not in the middle of the cover plate 3 (that is, the force on the cover plate 3 is unbalanced), when the cover plate 3 is started, one side will be tilted up first and the other side will be tilted up later. The cover plate 3 on the side that tilts up first will first drive the rotating crankshaft 2 on that side to rotate first, and the cover plate 3 on the side that tilts up later will drive the rotating crankshaft on that side later. 2, which causes all the rotating crankshafts 2 to not start synchronously at the moment the cover plate 3 is opened, resulting in twisting of the cover plate 3 and unstable starting. The synchronous locking mechanism 4 provided in the present application can lock the cover plate 3 and the rotating crankshaft 2 when the cover plate 3 is opened and rotated to the first flip state, so that the two become a whole that cannot rotate relative to each other. When the cover plate 3 is opened, since the cover plate 3 and the rotating crankshaft 2 cannot rotate relative to each other, the cover plate 3 will drive the rotating crankshafts 2 on both sides to rotate synchronously relative to the mounting base 1, thereby realizing the smooth opening of the cover plate 3.

[0058] In this embodiment, the mounting base 1 is used to mount one end of the rotating crankshaft 2 to support the cover plate 3 and the rotating crankshaft 2 .

[0059] The mounting base 1 and the rotating crankshaft 2 can be rotationally connected via a connecting pin 11. Specifically, connecting holes can be provided on both the mounting base 1 and the rotating crankshaft 2, and the connecting pin 11 can be installed in the connecting holes.

[0060] In this embodiment, the cover plate 3 is used to cover the water inlet 101 of the raw water tank 100 to prevent impurities or dust from entering the raw water tank 100 through the water inlet 101 and polluting the water quality or blocking the water inlet and outlet of the raw water tank 100.

[0061] The cover plate 3 and the other end of the rotating crankshaft 2 can be rotatably connected via a rotating shaft. Specifically, a rotating hole is provided at the other end of the cover plate 3 and the rotating crankshaft 2, and the rotating shaft is provided in the rotating hole.

[0062] The rotating crankshaft 2 is used to connect the cover plate 3 and the mounting base 1, and the rotating crankshaft 2 also facilitates the cover plate 3 to flip at a certain angle relative to the mounting base 1 to reach a first-level flipping state.

[0063] In terms of configuration, the rotating crankshaft 2 in this embodiment is configured as a U-shaped flip ring. The end of the U-shaped flip ring connected to the mounting base 1 is flat, while the end of the U-shaped flip ring connected to the cover plate 3 is configured as an involute profile. In the first-stage flip state, the mounting base 1 engages the U-shaped flip ring to limit its position. The rotating crankshaft 2 is specifically configured as a U-shaped flip ring, and in the first-stage flip state, the mounting base 1 engages the U-shaped flip ring to limit its position. This position prevents the U-shaped flip ring from further flipping relative to the mounting base 1.

[0064] In this embodiment, Figures 11 to 14 As shown, when the cover plate 3 rotates to the first-stage flipping state, the rotation of the rotating crankshaft 2 relative to the mounting base 1 reaches the maximum angle, that is, the rotating crankshaft 2 is in the stop position limited by the mounting base 1, and the cover plate 3 can no longer continue to flip by rotating the rotating crankshaft 2 relative to the mounting base 1.

[0065] Optional, such as Figure 13 As shown, in the first-stage flipping state, the included angle α between the cover plate 3 and the top surface of the mounting base 1 is 0°<α≤90°. This ensures that the included angle α between the cover plate 3 and the top surface of the mounting base 1 is within a reasonable range when the cover plate 3 completes the first-stage flipping.

[0066] Specifically, in the first-stage flipping state, the angle α can be set to 45°, 60° or 90°, etc. In this embodiment, the angle α is preferably equal to 90° in the first-stage flipping state to avoid the cover plate 3 interfering with the water filling operation of the water filling port 101.

[0067] In order to improve the flipping angle range of the cover 3, in this embodiment, the flipping state also includes a second-level flipping state. After the cover 3 reaches the first-level flipping state, the cover 3 can flip from the first-level flipping state to the second-level flipping state relative to the rotating crankshaft 2, and in the process of the cover 3 flipping from the first-level flipping state to the second-level flipping state, the synchronous locking mechanism 4 is unlocked to enable the cover 3 to rotate relative to the rotating crankshaft 2.

[0068] The above-mentioned setting locks and unlocks the cover plate 3 and the rotating crankshaft 2 through the synchronous locking mechanism 4, and designs the cover plate 3 into a two-stage flipping form, that is, during the process of the cover plate 3 flipping to the first-stage flipping state, the cover plate 3 flips with the connection point between the rotating crankshaft 2 and the mounting base 1 as the rotation center, and during the process of the cover plate 3 flipping from the first-stage flipping state to the second-stage flipping state, the synchronous locking mechanism 4 is unlocked so that the cover plate 3 can continue to flip with the connection point with the rotating crankshaft 2 as the rotation center, thereby expanding the flipping angle range of the cover plate 3, making it convenient for the cover plate 3 to avoid a larger space, and facilitating water addition or other operations at the water inlet 101.

[0069] Since in the first-level flipping state, the mounting base 1 clamps and limits the U-shaped flip ring, so that the rotating crankshaft 2 cannot continue to flip relative to the mounting base 1, thereby ensuring that the cover plate 3 can only flip relative to the rotating crankshaft 2 to the second-level flipping state, thereby improving the accuracy and reliability of the secondary flipping.

[0070] In this embodiment, Figure 14As shown, in the second-stage flipping state, the included angle β between the cover plate 3 and the top surface of the mounting base 1 is 90°<β≤180°. When the cover plate 3 completes the second-stage flipping, the included angle β between the cover plate 3 and the top surface of the mounting base 1 is at least greater than 90°, thereby completely clearing the space above the water inlet 101 and facilitating water addition or other operations above the water inlet 101.

[0071] Specifically, in the second-level flipping state, the angle β can be set to 120°, 150° or 180°, etc. In this embodiment, preferably, in the second-level flipping state, the angle β is equal to 180°, that is, the cover 3 is completely parallel to the top surface of the mounting base 1, so as to achieve full opening of the cover 3.

[0072] In terms of specific structural settings, in this embodiment, Figures 3 to 9 As shown, the synchronous locking mechanism 4 includes a locking ratchet 41 and an elastic locking portion 42, wherein the locking ratchet 41 is connected to the cover plate 3, the locking ratchet 41 has a first locking bevel 411, and the elastic locking portion 42 is telescopically arranged at one end of the rotating crankshaft 2 connected to the cover plate 3. In the process of flipping the cover plate 3 to the first-stage flipping state, the elastic locking portion 42 elastically abuts against the first locking bevel 411 under the action of elastic force, so that the cover plate 3 is locked to the rotating crankshaft 2. In the process of flipping the cover plate 3 from the first-stage flipping state to the second-stage flipping state, the locking ratchet 41 presses down the elastic locking portion 42 so that the elastic locking portion 42 disengages from the first locking bevel 411, so that the cover plate 3 is unlocked from the rotating crankshaft 2.

[0073] With the above arrangement, when the cover plate 3 is flipped to the first-stage flipping state, the elastic locking portion 42 elastically abuts against the first locking bevel groove 411 under the action of elastic force, thereby locking the cover plate 3 and the rotating crankshaft 2, so that the cover plate 3 and the rotating crankshaft 2 are flipped relative to the mounting base 1. In the process of the cover plate 3 continuing to flip from the first-stage flipping state to the second-stage flipping state, the cover plate 3 drives the locking ratchet 41 to rotate relative to the elastic locking portion 42, thereby applying downward pressure to the elastic locking portion 42 through the first locking bevel groove 411 to cause the elastic locking portion 42 to elastically contract, and then the elastic locking portion 42 gradually disengages from the first locking bevel groove 411, so that the cover plate 3 and the rotating crankshaft 2 are unlocked, and the cover plate 3 can further continue to flip relative to the rotating crankshaft 2 to the second-stage flipping state.

[0074] It can be understood that when a first-level flipping force is applied to the cover plate 3 to cause the cover plate 3 to perform a first-level flip (flipped to the first-level flipping state), the rotating crankshaft 2 and the cover plate 3 are limited by the elastic abutment cooperation between the elastic locking portion 42 and the first locking bevel 411, thereby forming an overall force between the rotating crankshaft 2 and the cover plate 3, and there is a rotational freedom between the rotating crankshaft 2 and the mounting base 1. Therefore, under the action of the first-level flipping force, the rotating crankshaft 2 and the cover plate 3 are flipped relative to the mounting base 1 as a whole. When a secondary flipping force is applied to the cover plate 3 in the first-stage flipping state to cause the cover plate 3 to perform a secondary flipping (i.e., the cover plate 3 flips from the first-stage flipping state to the first-stage flipping state), since the rotating crankshaft 2 has reached the maximum rotation angle relative to the mounting base 1 (the rotating crankshaft 2 can no longer rotate), under the action of the secondary flipping force, the cover plate 3 drives the locking ratchet 41 to rotate relative to the elastic locking portion 42, and generates a downward pressure (away from the locking ratchet 41) on the elastic locking portion 42 through the first locking bevel 411. The downward pressure presses the elastic locking portion 42 downward to gradually disengage the first locking bevel 411, thereby achieving unlocking between the cover plate 3 and the rotating crankshaft 2, so that the cover plate 3 continues to flip relative to the rotating crankshaft 2 to the second-stage flipping state.

[0075] It should be noted that the secondary flipping force is greater than the primary flipping force, that is, during the first flipping, a smaller primary flipping force is applied to the cover 3 to achieve the synchronous start of the cover 3 and all the rotating crankshafts 2, while during the second flipping, a secondary flipping force greater than the primary flipping force needs to be applied to the cover 3 to unlock the cover 3 and the rotating crankshaft 2, which makes the cover 3 more labor-saving during the first flipping operation and also avoids the situation where the cover 3 and the rotating crankshaft 2 are mistakenly locked during the first flipping process, thereby realizing a clearly layered two-stage flipping movement of the cover 3.

[0076] Of course, the magnitudes of the primary overturning force and the secondary overturning force can be obtained through testing during use, and this embodiment does not impose any specific limitations thereto.

[0077] Specifically, the locking ratchet 41 is an annular wheel, and a ratchet 412 is integrally provided along the edge of the locking ratchet 41. The side surface of the ratchet 412 is an inclined surface eccentrically arranged relative to the center of the locking ratchet 41. The inclined surface and the arc-shaped surface of the locking ratchet 41 cooperate to form a first locking bevel groove 411, that is, the arc-shaped surface of the locking ratchet 41 forms the bottom of the first locking bevel groove 411, and the inclined surface of the ratchet 412 forms the side wall of the first locking bevel groove 411.

[0078] The other side surface of the ratchet 412 relative to the inclined surface is an arc-shaped surface, and the curvature of the arc-shaped surface gradually decreases in the direction away from the inclined surface. In the process of flipping the cover 3 to the second-stage flipping state, the cover 3 drives the ratchet 412 to move relative to the locking pin 421, so that the locking pin 421 moves relative to the first locking inclined groove 411 to the arc-shaped surface of the ratchet 412. Since the curvature of the arc surface gradually decreases in the direction away from the inclined surface, the locking pin 421 first compresses the locking spring 422 under the downward pressure of the ratchet 412 to achieve unlocking, and then gradually extends out under the elasticity of the locking spring 422 to abut against the arc surface of the ratchet 412. Therefore, when the cover 3 is flipped closed, the arc surface of the ratchet 412 is a curved surface with a gradually changing curvature, and there is a point-to-surface fit with the locking pin 421, and there is no relatively matching blocking surface. Therefore, during the entire opening and closing flipping movement of the cover 3, there is flipping resistance only when flipping to open the cover, ensuring that when flipping to the first-level flipping state, all the rotating crankshafts 2 are started at the same time, allowing the cover 3 to flip smoothly. Since there is no resistance when the cover 3 is flipped to close, the entire closing process does not require too much force to complete, and the operation is labor-saving.

[0079] In this embodiment, the locking ratchet 41 is connected to the cover plate 3 through a rotating shaft. When the locking ratchet 41 abuts against the elastic locking portion 42, the cover plate 3 connected to the locking ratchet 41 and the rotating crankshaft 2 connected to the elastic locking portion 42 can be limited and locked.

[0080] The elastic locking portion 42 can elastically abut the inclined surface of the ratchet 412 (i.e., the side wall of the first locking inclined groove 411) and the arc-shaped surface of the locking ratchet 41 (i.e., the bottom of the first locking inclined groove 411). When the cover plate 3 drives the locking ratchet 41 to rotate relative to the elastic locking portion 42, the inclined surface of the ratchet 412 generates a downward pressure on the elastic locking portion 42 that is obliquely downward (away from the locking ratchet 41), so that the elastic locking portion 42 gradually separates from the inclined surface of the ratchet 412, thereby realizing the unlocking between the cover plate 3 and the rotating crankshaft 2.

[0081] In this embodiment, the elastic locking portion 42 has a second locking bevel groove 4211 . When the cover plate 3 is flipped to the first flipping state, the second locking bevel groove 4211 is engaged with the first locking bevel groove 411 .

[0082] The above-mentioned setting further provides a second locking bevel 4211 on the elastic locking part 42, and the second locking bevel 4211 is engaged with the first locking bevel 411 to enhance the limiting between the elastic locking part 42 and the locking ratchet 41, thereby improving the locking stability between the cover plate 3 and the rotating crankshaft 2 during the process of flipping to the first-level flipping state, and reducing the risk of mislocking during the flipping process.

[0083] As a preferred technical solution of this embodiment, the elastic locking portion 42 includes a locking pin 421 and a locking spring 422. The locking pin 421 is movably arranged in the locking mounting groove 21 of the rotating crankshaft 2. The locking pin 421 is suitable for cooperating with the first locking bevel 411. The second locking bevel 4211 is arranged on the surface of the locking pin 421 facing the locking ratchet 41. The locking spring 422 is arranged in the locking mounting groove 21 and is connected to the end of the locking pin 421 away from the locking ratchet 41.

[0084] With the above arrangement, when the cover 3 is flipped to the first flipping state, the locking pin 421 elastically abuts against the first locking bevel 411 under the elastic force of the locking spring 422 and the second locking bevel 4211 is engaged with the first locking bevel 411, thereby locking the cover 3 and the rotating crankshaft 2. When the cover 3 continues to flip from the first flipping state to the second flipping state, the cover 3 drives the locking ratchet 41 to rotate relative to the elastic locking part 42, so that the second locking bevel 4211 is gradually separated from the first locking bevel 411 and the downward pressure is applied to the locking pin 421 through the first locking bevel 411, so that the locking spring 422 elastically contracts, and then the locking pin 421 gradually disengages from the first locking bevel 411, thereby unlocking the cover 3 and the rotating crankshaft 2.

[0085] Specifically, the bottom of the locking pin 421 is installed in the locking installation groove 21, and the top of the locking pin 421 can extend out of the locking installation groove 21. The second locking bevel 4211 is used to engage with the first locking bevel 411. The locking spring 422 is sleeved on the bottom of the locking pin 421 and is connected to the bottom of the locking installation groove 21. The deformation direction of the locking spring 422 can be limited and guided by the locking pin 421.

[0086] In addition, if Figures 1 to 6 As shown, in order to reduce the appearance gap of the cover plate 3 and ensure that the cover plate 3 can still be fastened to the mounting base 1 without applying a certain external force or only being subjected to a slight external force impact, the cover plate flipping structure of this embodiment also includes a damping mechanism 5, which is arranged on the rotating crankshaft 2. The damping mechanism 5 is in friction contact with the inner wall of the mounting base 1. In the process of the rotating crankshaft 2 driving the damping mechanism 5 to flip, the damping mechanism 5 frictionally slides relative to the inner wall of the mounting base 1.

[0087] With the above arrangement, when the cover 3 is closed, the synchronous locking mechanism 4 always locks the cover 3 and the rotating crankshaft 2. Further, through the provided damping mechanism 5, the cover 3 can be in frictional contact with the inner wall of the mounting base 1 without applying external force or under slight external force impact, thereby increasing the pre-tightening force on the cover 3 when closed, and achieving a tighter covering of the cover 3 on the mounting base 1, preventing the cover 3 from shaking and reducing the appearance gap of the cover 3. At the same time, in the process of flipping the cover 3 to the first-level flipping state, the rotating crankshaft 2 synchronously drives the damping mechanism 5 to frictionally slide relative to the inner wall of the mounting base 1, which can enhance the flipping resistance of the cover 3, increase the damping feeling of opening the cover 3 and the feel of opening and closing the cover 3, and improve the opening and closing stability of the cover 3.

[0088] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 、 Figure 10 As shown, the damping mechanism 5 includes a damping pin 51 and a damping spring 52, wherein the outer end of the damping pin 51 abuts against the inner wall of the mounting base 1, one end of the damping spring 52 is connected to the rotating crankshaft 2, and the other end of the damping spring 52 is connected to the inner end of the damping pin 51. The damping pin 51 abuts against the inner wall of the mounting base 1 under the elastic force of the damping spring 52.

[0089] With the above arrangement, the outer end of the damping pin 51 abuts against the inner wall of the mounting base 1 under the elastic force of the damping spring 52, thereby enhancing the friction between the rotating crankshaft 2 and the mounting base 1 and increasing the pre-tightening force of the cover plate 3. When the rotating crankshaft 2 synchronously drives the damping pin 51 and the damping spring 52 to flip, the outer end of the damping pin 51 is driven to overcome the friction and slide on the inner wall of the mounting base 1, thereby realizing the damping flipping of the cover plate 3. The damping spring 52 realizes flexible abutment between the damping pin 51 and the mounting base 1, avoiding excessive wear caused by rigid contact between the two.

[0090] In addition, it can be understood that since the rotating crankshaft 2 and the mounting base 1 are rotatably connected through the connecting pin 11, the setting of the damping mechanism 5 can also enhance the connection firmness between the rotating crankshaft 2 and the mounting base 1, and prevent the two from moving axially along the connecting pin 11.

[0091] To facilitate the installation of the damping mechanism 5, in this embodiment, the rotating crankshaft 2 is provided with a damping mounting groove 22, and the damping mechanism 5 also includes a damping seat 53, which is installed in the damping mounting groove 22, and the damping pin 51 is movably set on the damping seat 53, and the damping spring 52 is set between the inner end of the damping pin 51 and the inner wall of the damping mounting groove 22.

[0092] In the above arrangement, the damping pin 51 is movably arranged in the damping mounting groove 22 through the damping seat 53, and the elastic force of the damping spring 52 pushes the damping pin 51 to move relative to the damping seat 53 and the rotating crankshaft 2, so that the outer end of the damping pin 51 elastically abuts against the inner wall of the mounting base 1, thereby achieving frictional abutment between the two.

[0093] Specifically, the damping mounting groove 22 is arranged at one end of the rotating crankshaft 2 close to the mounting base 1, and the two sides of the damping seat 53 are clamped on the inner wall of the damping mounting groove 22 to achieve positioning. The middle part of the damping seat 53 is provided with an avoidance hole connected to the outside of the rotating crankshaft 2, and the damping pin 51 is movably arranged in the avoidance hole and the outer end of the damping pin 51 passes through the avoidance hole, the rotating crankshaft 2 and the inner wall of the mounting base 1 are frictionally abutted, one end of the damping spring 52 is fixedly connected to the inner wall of the damping mounting groove 22, and the other end of the damping spring 52 is fixedly connected to the inner end of the damping pin 51. Pushing the damping pin 51 can overcome the elastic force of the damping spring 52 to retract the damping pin 51 into the damping mounting groove 22. Loosening the damping pin 51 can make the damping pin 51 move under the elastic force of the damping spring 52 to frictionally abut against the inner wall of the mounting base 1, which is easy to install.

[0094] In terms of shape, the damping seat 53 and the damping pin 51 can both be configured into an Ω-shaped or U-shaped structure.

[0095] Furthermore, in order to prevent the damping pin 51 from tilting when it slides against the inner wall of the mounting base 1, causing the cover 3 to flip unstably, a damping groove 54 is provided on the inner wall of the mounting base 1 of this embodiment. The damping groove 54 is provided along the movement trajectory of the damping pin 51, and the outer end of the damping pin 51 frictionally abuts against the damping groove 54.

[0096] The above arrangement provides a damping groove 54 on the inner wall of the mounting base 1 along the direction of the movement trajectory of the damping pin 51, so that the damping pin 51 always slides along the damping groove 54 when flipping, thereby improving the movement accuracy of the damping pin 51 and ensuring stable flipping of the cover plate 3.

[0097] Specifically, the damping pin 51 flips in an arc shape around the connection point between the rotating crankshaft 2 and the mounting base 1, and its movement trajectory is also an arc shape, so the damping groove 54 is correspondingly set to a circular arc groove, and the width of the damping groove 54 matches the diameter of the outer end of the damping pin 51, so that the outer end of the damping pin 51 is matched and engaged in the damping groove 54.

[0098] The damping groove 54 may specifically be a groove or a convex groove provided on the inner wall of the mounting base 1 .

[0099] It should be noted that the installation position of the damping mechanism 5 is designed to be at one end of the rotating crankshaft 2 close to the mounting base 1, that is, close to the root position of the first-level flip center of the rotating crankshaft 2. Therefore, the movement trajectory of the entire process will not exceed the designed damping groove 54 range. Therefore, during the opening and closing process of the entire cover 3, the friction between the damping pin 51 and the mounting base 1 will always exist and remain unchanged. This also makes the damping feel remain constant during the entire rotation and opening and closing process of the cover 3.

[0100] In terms of the number of settings, in order to take into account the installation cost and the flipping stability of the cover plate 3, in this embodiment, two rotating crankshafts 2, two synchronous locking mechanisms 4, and two damping mechanisms 5 are respectively provided. The rotating crankshafts 2 are respectively provided along the two inner walls of the mounting base 1, and the synchronous locking mechanism 4 is provided between each rotating crankshaft 2 and the cover plate 3 to lock the two rotating crankshafts 2 and the cover plate 3 to achieve synchronous starting of the cover plate 3 and the two rotating crankshafts 2. A damping mechanism 5 is respectively provided for the two rotating crankshafts 2 to increase the damping friction between the rotating crankshaft 2 and the mounting base 1.

[0101] Of course, in some embodiments, the number of rotating crankshafts 2 can also be 3, 5 or more. Accordingly, a synchronous locking mechanism 4 needs to be set between each rotating crankshaft 2 and the cover plate 3 to lock all the rotating crankshafts 2 and the cover plate 3, and at least one rotating crankshaft 2 should be provided with a damping mechanism 5.

[0102] To facilitate understanding of the cover flip structure of this embodiment, the following describes its usage process:

[0103] The cover plate 3 is in the covered state: the synchronous locking mechanism 4 always locks the cover plate 3 and the rotating crankshaft 2, and the damping pin 51, under the elastic force of the damping spring 52, frictionally abuts against the damping groove 54 on the inner wall of the mounting base 1, so that the cover plate 3 is tightly covered on the mounting base 1;

[0104] The cover plate 3 flips from the covered state to the first-stage flipping state: a first-stage flipping force is applied to the cover plate 3, and the locking pin 421 elastically abuts against the first locking bevel 411 under the elastic force of the locking spring 422, and the second locking bevel 4211 engages with the first locking bevel 411, thereby locking the cover plate 3 and the rotating crankshaft 2. Under the action of the first-stage flipping force, the cover plate 3 and the rotating crankshaft 2 are flipped as a whole relative to the mounting base 1, driving the outer end of the damping pin 51 to slide frictionally along the damping groove 54 until the cover plate 3 flips to form a 90° angle with the top surface of the mounting base 1, at which point the rotating crankshaft 2 abuts against the mounting base 1 to limit the position.

[0105] The cover plate 3 flips from the first flipping state to the second flipping state: a secondary flipping force (greater than the first flipping force) is applied to the cover plate 3, and the cover plate 3 drives the locking ratchet 41 to rotate relative to the elastic locking part 42, so that the second locking bevel 4211 is gradually separated from the first locking bevel 411 and a downward pressure is applied to the locking pin 421 through the first locking bevel 411 to elastically contract the locking spring 422, thereby gradually causing the locking pin 421 to disengage from the first locking bevel 411, thereby unlocking the cover plate 3 and the rotating crankshaft 2, so that the cover plate 3 continues to flip relative to the rotating crankshaft 2 to form an angle of 180° with the top surface of the mounting base 1.

[0106] It should be noted that when the cover 3 needs to be closed, it is only necessary to flip the cover 3 in the opposite direction so that the cover 3 is flipped from the second-level flipping state to the first-level flipping state in sequence. During this process, the locking pin 421 gradually engages with the first locking bevel 411 to lock the cover 3 and the rotating crankshaft 2 again, and the cover 3 can be flipped from the first-level flipping state to the closed state.

[0107] On the other hand, Figure 15 As shown, this embodiment also provides a water purifier, which includes a body 200, a raw water tank 100, and the cover plate flip structure of this embodiment. The raw water tank 100 is connected to the body 200, and the raw water tank 100 has a water inlet 101. The cover plate 3 is covered by the water inlet 101 via the cover plate flip structure. Because the water purifier of this embodiment includes the cover plate flip structure of this embodiment, the water purifier has the same technical effects as the cover plate flip structure, and will not be described in detail here.

[0108] Of course, in other embodiments, the cover flip structure may also be provided on a water dispenser or other drinking equipment with a raw water tank 100, and is not limited to this embodiment.

[0109] Optionally, the mounting base 1 in the cover flip structure may be the fuselage 200 or the raw water tank 100 , so that the cover flip structure is disposed on the fuselage 200 or the raw water tank 100 to cover the water inlet 101 .

[0110] The mounting base 1 in the cover flip structure can also be connected to the fuselage 200 or the raw water tank 100 through a snap-fit ​​structure, that is, the rotating crankshaft 2 is first connected to the mounting base 1, and then the rotating crankshaft 2 and the cover 3 are installed as a whole on the fuselage 200 or the raw water tank 100 through the mounting base 1 to achieve modular installation.

[0111] Of course, the above description is only the optimal technical solution of this embodiment. In addition:

[0112] In some embodiments, the elastic locking portion 42 can be directly configured as an elastic column structure, and elastic expansion and contraction can be achieved by relying on the elasticity of the elastic column itself.

[0113] In some embodiments, the damping mechanism 5 may also be configured as a protruding structure extending along the surface of the rotating crankshaft 2 , and the damping flipping of the cover plate 3 is achieved by frictionally abutting the protruding structure with the inner wall of the mounting base 1 .

[0114] In some embodiments, the damping spring 52 and the damping pin 51 may also be directly arranged outside the rotating crankshaft 2 , that is, the damping spring 52 is connected to the outer surface of the rotating crankshaft 2 , and the damping pin 51 is connected to the damping spring 52 .

[0115] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A cover flip structure, characterized in that: include: Mounting base (1); The cover plate (3) can be flipped relative to the mounting base (1), and the flipping state includes a first-level flipping state; A rotating crankshaft (2), one end of which is rotatably connected to the mounting base (1), and the other end of which is rotatably connected to the cover plate (3), wherein the cover plate (3) is connected to the mounting base (1) via at least two rotating crankshafts (2); A synchronous locking mechanism (4) is provided between the cover plate (3) and the rotating crankshaft (2). When the cover plate (3) drives the rotating crankshaft (2) to rotate relative to the mounting base (1) to the first-stage flipping state, the synchronous locking mechanism (4) locks the cover plate (3) and the rotating crankshaft (2) to prevent the two from rotating relative to each other. The synchronous locking mechanism (4) comprises: A locking ratchet (41) is connected to the cover plate (3), and the locking ratchet (41) has a first locking inclined groove (411); an elastic locking portion (42) is telescopically arranged at one end of the rotating crankshaft (2) connected to the cover plate (3), The elastic locking portion (42) has a second locking bevel (4211), and when the cover plate (3) is flipped to the first flipping state, the second locking bevel (4211) is engaged with the first locking bevel (411). The elastic locking portion (42) comprises: a locking pin (421) movably arranged in the locking installation groove (21) of the rotating crankshaft (2), the locking pin (421) being adapted to cooperate with the first locking bevel groove (411), and the second locking bevel groove (4211) being arranged on the surface of the locking pin (421) facing the locking ratchet (41); a locking spring (422) arranged in the locking installation groove (21) and connected to an end of the locking pin (421) away from the locking ratchet (41), the locking spring (422) being sleeved on the bottom of the locking pin (421) and connected to the bottom of the locking installation groove (21).

2. The cover flip structure according to claim 1, characterized in that: The flipping state also includes a second-stage flipping state. After the cover plate (3) reaches the first-stage flipping state, the cover plate (3) can flip from the first-stage flipping state to the second-stage flipping state relative to the rotating crankshaft (2). In the process of the cover plate (3) flipping from the first-stage flipping state to the second-stage flipping state, the synchronous locking mechanism (4) is unlocked to enable the cover plate (3) to rotate relative to the rotating crankshaft (2).

3. The cover flip structure according to claim 2, characterized in that: During the process of the cover plate (3) flipping to the first-stage flipping state, the elastic locking portion (42) elastically abuts against the first locking inclined groove (411) under the action of elastic force, so that the cover plate (3) and the rotating crankshaft (2) are locked. During the process of the cover plate (3) flipping from the first-stage flipping state to the second-stage flipping state, the locking ratchet (41) presses down the elastic locking portion (42) so that the elastic locking portion (42) escapes from the first locking inclined groove (411), so that the cover plate (3) and the rotating crankshaft (2) are unlocked.

4. The cover plate flip structure according to any one of claims 1 to 3, characterized in that: The cover plate flipping structure further comprises a damping mechanism (5), wherein the damping mechanism (5) is arranged on the rotating crankshaft (2), and the damping mechanism (5) is in frictional contact with the inner wall of the mounting base (1). When the rotating crankshaft (2) drives the damping mechanism (5) to flip, the damping mechanism (5) frictionally slides relative to the inner wall of the mounting base (1).

5. The cover flip structure according to claim 4, characterized in that: The damping mechanism (5) comprises: A damping pin (51), the outer end of which abuts against the inner wall of the mounting base (1); A damping spring (52), one end of the damping spring (52) is connected to the rotating crankshaft (2), the other end of the damping spring (52) is connected to the inner end of the damping pin (51), and the damping pin (51) abuts against the inner wall of the mounting base (1) under the elastic force of the damping spring (52).

6. The cover flip structure according to claim 5, characterized in that: The rotating crankshaft (2) is provided with a damping installation groove (22), the damping mechanism (5) further includes a damping seat (53), the damping seat (53) is installed in the damping installation groove (22), the damping pin (51) is movably arranged on the damping seat (53), and the damping spring (52) is arranged between the inner end of the damping pin (51) and the inner wall of the damping installation groove (22).

7. The cover flip structure according to claim 5, characterized in that: The inner wall of the mounting base (1) is provided with a damping groove (54), the damping groove (54) being arranged along the motion trajectory of the damping pin (51), and the outer end of the damping pin (51) frictionally abuts against the inside of the damping groove (54).

8. The cover plate flip structure according to any one of claims 1 to 3, characterized in that: The rotating crankshaft (2) is a U-shaped flip ring, one end of the U-shaped flip ring connected to the mounting base (1) is a plane, and one end of the U-shaped flip ring connected to the cover plate (3) is set as an involute profile. In the first-stage flip state, the mounting base (1) clamps and limits the U-shaped flip ring.

9. The cover flip structure according to claim 2 or 3, characterized in that: In the first-stage flipping state, the included angle α between the cover plate (3) and the top surface of the mounting base (1) is 0°<α≤90°, and in the second-stage flipping state, the included angle β between the cover plate (3) and the top surface of the mounting base (1) is 90°<β≤180°.

10. A water purifier, characterized in that: include: fuselage (200); A raw water tank (100) is connected to the body (200), and the raw water tank (100) has a water inlet (101); The cover plate flip structure according to any one of claims 1 to 9, wherein the cover plate (3) is covered on the water inlet (101) through the cover plate flip structure.

11. The water purifier according to claim 10, characterized in that: The mounting base (1) in the cover plate flip structure is the fuselage (200) or the raw water tank (100).

12. The water purifier according to claim 10, characterized in that: The mounting base (1) in the cover flip structure is connected to the fuselage (200) or the raw water tank (100) via a snap-fit ​​structure.

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