CN117281391A - Cover plate overturning structure and water purifying and drinking machine - Google Patents

Abstract

The invention relates to the technical field of drinking equipment, and discloses a cover plate overturning structure and a clean drinking machine, which comprise a mounting base body, a cover plate, a rotary crankshaft and a synchronous locking mechanism, wherein the cover plate can be overturned relative to the mounting base body, the overturning state comprises a first-stage overturning state, one end of the rotary crankshaft is rotatably connected with the mounting base body, the other end of the rotary crankshaft is rotatably connected with the cover plate, the cover plate is connected with the mounting base body through at least two rotary crankshafts, the synchronous locking mechanism is arranged between the cover plate and the rotary crankshaft, and in the process that the cover plate drives the rotary crankshaft to rotate relative to the mounting base body to the first-stage overturning state, the cover plate and the rotary crankshaft are locked by the synchronous locking mechanism so as to prevent relative rotation of the cover plate and the rotary crankshaft. The apron of this application is difficult for droing under the exogenic action, has avoided impurity to get into the condition of original water tank interior pollution quality of water or apron drop to original water tank through apron drop-off department, and apron and two at least rotatory bent axle can synchronous start, promote the apron and open stationarity.

Description

Cover plate overturning structure and water purifying and drinking machine

Technical Field

The invention relates to the technical field of drinking equipment, in particular to a cover plate overturning structure and a clean drinking machine.

Background

Drinking equipment such as water purifying and drinking machines and water dispensers with a raw water tank is generally provided with a cover plate at the water filling port of the raw water tank, wherein the cover plate is used for shielding the water filling port and preventing dust and impurities from entering the raw water tank.

The assembly form of apron and former water tank is mostly independent cooperation, and former water tank and apron mutually independent promptly can dismantle respectively, and the apron is not fixed, can take freely. Although the assembly form can meet the requirement that a user takes the cover plate when changing water to a certain extent, the cover plate is an independent and unfixed part, so that the deformation of parts is better controlled for the appearance assembly gap of the whole machine. However, such a design also has a relatively large disadvantage that the cover plate is not fixed, and the external dimension of the cover plate is generally equal to the outline dimension of the water filling port of the original water tank, so that the cover plate may fall off or fall into the original water tank during the process of opening and closing the cover plate. The situation can greatly reduce user experience, in addition, because the cover plate is not fixed, the cover plate is easy to fall off when being subjected to external force, sundries can easily enter the original water tank, and the risks of water quality damage, blockage of a water inlet and a water outlet of the original water tank and even blockage of a pipeline of the whole machine can be caused.

Disclosure of Invention

In view of the above, the invention provides a cover plate overturning structure and a clean drinking machine, which are used for solving the problems that the existing cover plate is independent and is not fixedly arranged to cause easy falling, so that sundries easily enter a raw water tank, and the risks of water quality damage, blockage of a water inlet and a water outlet of the raw water tank and even blockage of a pipeline of the whole machine are caused.

The invention provides a cover plate overturning structure, which comprises a mounting base body, a cover plate, a rotary crankshaft and a synchronous locking mechanism, wherein the cover plate can be overturned relative to the mounting base body, the overturning state comprises a first-stage overturning state, one end of the rotary crankshaft is rotatably connected with the mounting base body, the other end of the rotary crankshaft is rotatably connected with the cover plate, the cover plate is connected with the mounting base body through at least two rotary crankshafts, the synchronous locking mechanism is arranged between the cover plate and the rotary crankshaft, and in the process that the cover plate drives the rotary crankshaft to rotate relative to the first-stage overturning state relative to the mounting base body, the synchronous locking mechanism locks the cover plate and the rotary crankshaft so as to prevent relative rotation of the cover plate and the rotary crankshaft.

The beneficial effects are that: through the at least two rotatory crankshafts that set up with apron and installation base member connection, compare in the apron of independent split type setting, the apron of this application is difficult for droing under the exogenic action, the impurity has been avoided getting into the condition of pollution quality of water in the former water tank or apron drop to former water tank through apron drop-off department, and set up synchronous locking mechanical system between apron and rotatory bent axle, the in-process that the apron drove rotatory base member to first order upset state of relative installation base member rotation, synchronous locking mechanical system can be with apron and rotatory bent axle locking, thereby prevent that apron and rotatory bent axle from appearing relative rotation, ensure that the apron is rotatory to first order upset state's in-process, apron and rotatory bent axle remain not relatively pivoted locking state throughout, stress unbalance leads to both sides at least two rotatory bent axles asynchronous start (action) when having avoided the apron to open, the condition that twists, start unstability appears in order to make apron and at least two rotatory bent axles can synchronous start, promote the apron and open stationarity when first order to start at first order to start.

In an alternative embodiment, the turning state further includes a second stage turning state, after the cover plate reaches the first stage turning state, the cover plate may be turned from the first stage turning state to the second stage turning state with respect to the rotating crankshaft, and in the process of turning the cover plate from the first stage turning state to the second stage turning state, the synchronous locking mechanism is unlocked so that the cover plate may rotate with respect to the rotating crankshaft.

The beneficial effects are that: through locking and unblock between synchronous locking mechanical system to apron and the rotatory bent axle, design into the two-stage form of overturning with the apron, the apron overturns to the in-process of first order upset state promptly, the apron uses the tie point of rotatory bent axle and installation base member to overturn as center of rotation, the apron overturns to the in-process of second order upset state from first order upset state, synchronous locking mechanical system unblock is in order to make the apron can use the tie point with rotatory bent axle to continue to overturn as center of rotation, thereby enlarged the upset angle scope of apron, make things convenient for the apron to dodge bigger space, be convenient for the water filling mouth to add water or other operations.

In an alternative embodiment, the synchronous locking mechanism includes a locking ratchet and an elastic locking portion, the locking ratchet is connected with the cover plate, the locking ratchet has a first locking chute, the elastic locking portion is telescopically disposed at one end of the rotating crankshaft connected with the cover plate, in the process that the cover plate is turned to the first-stage turning state, the elastic locking portion is elastically abutted in the first locking chute under the action of elastic force, so that the cover plate is locked with the rotating crankshaft, and in the process that the cover plate is turned from the first-stage turning state to the second-stage turning state, the locking ratchet presses down the elastic locking portion to enable the elastic locking portion to be separated from the first locking chute, so that the cover plate is unlocked from the rotating crankshaft.

The beneficial effects are that: when the cover plate is turned to the first-stage turning state, the elastic locking part is elastically abutted to the first locking chute under the action of elasticity, so that the cover plate is locked with the rotary crankshaft, the cover plate and the rotary crankshaft are turned relative to the mounting base body, the cover plate drives the locking ratchet to rotate relative to the elastic locking part in the process that the cover plate is turned to the second-stage turning state continuously from the first-stage turning state, the elastic locking part is elastically contracted by applying lower pressure to the elastic locking part through the first locking chute, the elastic locking part is gradually separated from the first locking chute, the cover plate and the rotary crankshaft are unlocked, and the cover plate can be turned to the second-stage turning state continuously further relative to the rotary crankshaft.

In an alternative embodiment, the elastic locking portion has a second locking chute, and the second locking chute is in snap fit with the first locking chute during the process of turning the cover plate to the first stage turning state.

The beneficial effects are that: through further setting up the second locking chute on the elastic locking portion, second locking chute and first locking chute joint cooperation to the reinforcing is spacing between elastic locking portion and the locking ratchet, promotes the locking steadiness between apron and the rotatory bent axle of upset to the in-process of first order upset state, reduces the risk of the mistake unblock of upset in-process.

In an alternative embodiment, the elastic locking portion includes a locking pin movably disposed in a locking mounting groove of the rotating crankshaft, the locking pin being adapted to be engaged with the first locking chute, the second locking chute being disposed in a surface of the locking pin facing the locking ratchet, and a locking spring disposed in the locking mounting groove and connected to an end of the locking pin remote from the locking ratchet.

The beneficial effects are that: when the cover plate is turned over to the first-stage turning state, the locking pin is elastically abutted in the first locking chute under the action of the elasticity of the locking spring and the second locking chute is matched with the first locking chute in a clamping manner, so that the cover plate is locked with the rotary crankshaft, the cover plate drives the locking ratchet to rotate relative to the elastic locking part in the process that the cover plate is continuously turned over from the first-stage turning state to the second-stage turning state, the second locking chute is gradually separated from the first locking chute, the locking pin is subjected to downward pressure through the first locking chute, the locking spring is elastically contracted, and the locking pin is gradually separated from the first locking chute, so that the unlocking of the cover plate and the rotary crankshaft is realized.

In an optional embodiment, the cover plate overturning structure further comprises a damping mechanism, the damping mechanism is arranged on the rotary crankshaft, the damping mechanism is in friction butt with the inner wall of the installation base body, and in the process that the rotary crankshaft drives the damping mechanism to overturn, the damping mechanism slides against the inner wall of the installation base body in a friction manner.

The beneficial effects are that: under the condition that the cover plate is covered, the synchronous locking mechanism locks the cover plate and the rotary crankshaft all the time, and further through the damping mechanism, the cover plate can be enabled to be in friction butt joint with the inner wall of the installation base body through the damping mechanism when no external force is applied or under slight external force impact, the pretightening force when the cover plate is covered is increased, the cover plate is tightly covered on the installation base body, shaking is prevented from occurring on the cover plate, the appearance gap of the cover plate is reduced, meanwhile, in the process that the cover plate is turned to a first-stage turning state, the rotary crankshaft synchronously drives the damping mechanism to slide against the inner wall of the installation base body in a friction manner, the turning resistance of the cover plate can be enhanced, the damping sense of opening the cover plate and the hand feeling of opening and closing the cover plate are increased, and the opening and closing stability of the cover plate is improved.

In an alternative embodiment, the damping mechanism comprises a damping pin and a damping spring, wherein the outer end of the damping pin is abutted against the inner wall of the mounting base body, one end of the damping spring is connected with the rotating crankshaft, the other end of the damping spring is connected with the inner end of the damping pin, and the damping pin is abutted against the inner wall of the mounting base body under the elasticity of the damping spring.

The beneficial effects are that: the outer end butt in the inner wall of installation base member of damping pin under damping spring's elasticity effect to reinforcing the frictional force between rotatory bent axle and the installation base member promotes the pretightning force that the apron lid closed, when rotatory bent axle synchronous drive damping pin and damping spring upset, drive the outer end of damping pin and overcome frictional force and slide at the inner wall friction of installation base member, and then realize the damping upset of apron, the damping spring realizes flexible butt between damping pin and the installation base member, avoids the excessive wear that rigid contact between the two leads to.

In an alternative embodiment, the rotary crankshaft is provided with a damping mounting groove, the damping mechanism further comprises a damping seat, the damping seat is mounted in the damping mounting groove, the damping pin is movably arranged on the damping seat, and the damping spring is arranged between the inner end of the damping pin and the inner wall of the damping mounting groove.

The beneficial effects are that: the damping pin is movably arranged in the damping mounting groove through the damping seat, and the damping pin is pushed to move relative to the damping seat and the rotary crankshaft through the elasticity of the damping spring, so that the outer end of the damping pin is elastically abutted against the inner wall of the mounting base body, and friction and abutting of the damping pin and the rotary crankshaft are realized.

In an alternative embodiment, the inner wall of the mounting base body is provided with a damping groove, the damping groove is arranged along the movement track of the damping pin, and the outer end of the damping pin is in friction abutting connection with the damping groove.

The beneficial effects are that: the damping grooves are formed in the inner wall of the mounting base body along the movement track direction of the damping pins, so that the damping pins always slide along the damping grooves in a friction manner when overturning, the movement accuracy of the damping pins is improved, and stable overturning of the cover plate is ensured.

In an optional implementation manner, the rotating crankshaft is a U-shaped overturning ring, one end of the U-shaped overturning ring connected with the installation base body is a plane, one end of the U-shaped overturning ring connected with the cover plate is set to be an involute profile, and the installation base body is clamped and limited to the U-shaped overturning ring in the first-stage overturning state.

The beneficial effects are that: the rotary crankshaft is specifically arranged as the U-shaped overturning ring, the U-shaped overturning ring is clamped and limited by the mounting base body in the first-stage overturning state, so that the U-shaped overturning ring is positioned, the rotation of the U-shaped overturning ring in the process of overturning the cover plate to the second-stage overturning state is avoided, and the reliability of the second-stage overturning is improved.

In an alternative embodiment, in the first-stage tilting state, the angle α between the cover plate and the top surface of the mounting base body is 0 ° < α+.ltoreq.90°, and in the second-stage tilting state, the angle β between the cover plate and the top surface of the mounting base body is 90 ° < β+.ltoreq.180°.

The beneficial effects are that: so that the included angle alpha between the cover plate and the top surface of the installation matrix is within a reasonable range when the first-stage overturning is completed, and the included angle beta between the cover plate and the top surface of the installation matrix is within a range at least greater than 90 degrees when the second-stage overturning is completed, thereby completely avoiding the space above the water filling port and facilitating water filling or other operations above the water filling port.

The invention also provides a clean water dispenser, which comprises a dispenser body, a raw water tank and the cover plate overturning structure, wherein the raw water tank is connected with the dispenser body, the raw water tank is provided with a water filling port, and the cover plate is covered on the water filling port through the cover plate overturning structure. Because the water purifying and drinking machine comprises the cover plate overturning structure, the water purifying and drinking machine has the same technical effects as the cover plate overturning structure, and the description is omitted here.

In an alternative embodiment, the mounting base in the cover-plate turning structure is the fuselage or the raw water tank.

The beneficial effects are that: thereby the cover plate overturning structure is arranged on the machine body or the raw water tank, and the covering of the water filling port is realized.

In an alternative embodiment, the mounting base in the cover plate overturning structure is connected to the body or the raw water tank through a buckle structure.

The beneficial effects are that: the rotary crankshaft is connected with the installation base body, and the rotary crankshaft and the cover plate are integrally installed on the machine body or the raw water tank through the installation base body, so that modularized installation is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a cover plate overturning structure according to an embodiment of the present invention;

FIG. 2 is a front view of a cover plate flip structure according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an overall split structure of a cover plate overturning structure according to an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a cover flip structure according to an embodiment of the present invention;

FIG. 5 is a schematic view of an overall assembly of a rotary crankshaft, damping mechanism and resilient locking portion according to an embodiment of the present invention;

FIG. 6 is a schematic view of an overall split of a rotary crankshaft, damping mechanism and resilient locking portion according to an embodiment of the present invention;

FIG. 7 is a schematic view of a synchronous locking mechanism in a locked state according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a synchronous locking mechanism in an unlocked state according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of a synchronous locking mechanism when a cover plate is turned to a second-stage turned state according to an embodiment of the present invention;

FIG. 10 is an enlarged schematic view of the structure of FIG. 2A;

FIG. 11 is a schematic diagram illustrating the cover plate being turned from the closed state to the first-stage turned state according to the embodiment of the present invention;

fig. 12 is a schematic diagram illustrating the cover plate being turned from the first-stage turned state to the second-stage turned state according to an embodiment of the present invention.

FIG. 13 is a schematic illustration of the labeling of the included angle between the cover plate and the top surface of the mounting substrate when the cover plate is in the first-stage turning state;

FIG. 14 is a schematic illustration of the labeling of the angle between the cover plate and the top surface of the mounting substrate during the process of turning over the cover plate to the second-stage turning over state according to the embodiment of the invention;

fig. 15 is a schematic structural view of a water purifying dispenser according to an embodiment of the present invention.

Reference numerals illustrate:

1. a mounting substrate; 11. a connecting pin; 12. the connecting rotating shaft; 2. rotating the crankshaft; 21. locking the mounting groove; 22. damping mounting grooves; 3. a cover plate; 4. a synchronous locking mechanism; 41. a locking ratchet; 411. a first locking chute; 412. a ratchet; 42. an elastic locking part; 421. a locking pin; 4211. a second locking chute; 422. a locking spring; 5. a damping mechanism; 51. damping pin; 52. a damping spring; 53. a damping seat; 54. a damping groove; 100. a raw water tank; 101. a water inlet; 200. a fuselage.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Embodiments of the present invention are described below with reference to fig. 1 to 14.

According to an embodiment of the present invention, in one aspect, there is provided a cover plate turnover structure including a mounting base 1, a cover plate 3, a rotary crankshaft 2, and a synchronous locking mechanism 4, wherein the cover plate 3 can be turned over relative to the mounting base 1, the turnover state includes a first-stage turnover state, one end of the rotary crankshaft 2 is rotatably connected to the mounting base 1, the other end is rotatably connected to the cover plate 3, the cover plate 3 is connected to the mounting base 1 through at least two rotary crankshafts 2, the synchronous locking mechanism 4 is disposed between the cover plate 3 and the rotary crankshafts 2, and the synchronous locking mechanism 4 locks the cover plate 3 and the rotary crankshafts 2 to prevent relative rotation during rotation of the cover plate 3 relative to the mounting base 1 to the first-stage turnover state.

The apron flip structure of this embodiment, connect apron 3 and installation base member 1 through two at least rotatory bent axle 2 that set up, compare in the apron 3 of independent split type setting, apron 3 of this application is difficult for droing under the exogenic action, avoided impurity to get into the circumstances that the original water tank 100 was interior contaminated water quality or apron 3 dropped to original water tank 100 through apron 3 drop-off department, and set up synchronous locking mechanism 4 between apron 3 and rotatory bent axle 2, the in-process that rotatory bent axle 2 was rotated to first order upset state relative to apron 3 drive installation base member 1, synchronous locking mechanism 4 can lock apron 3 and rotatory bent axle 2, thereby prevent that apron 3 and rotatory bent axle 2 from appearing relative rotation, ensure that apron 3 and rotatory bent axle 2 remain the locking state that does not have relative rotation all the time, the atress unbalance when having avoided apron 3 to open leads to both sides at least two rotatory bent axle 2 asynchronous start (action), lead to the apron 3 to appear torsion, the circumstances of starting unstability, so that apron 3 and two at least rotatory bent axle 2 can synchronous start, promote apron 3 and the stability when first order to start at first order to make the first order to rotate bent axle 2.

It should be noted that, because the cover plate 3 is connected with the mounting base 1 through at least two rotating crankshafts 2, and the rotating crankshafts 2 are rotatably connected with the mounting base 1 and the cover plate 3, two degrees of rotation freedom exist at two ends of the rotating crankshafts 2, when the force for opening the cover plate 3 is not in the middle of the cover plate 3 (namely, the stress of the cover plate 3 is unbalanced), one side of the cover plate 3 is tilted firstly, the other side of the cover plate 3 is tilted later, the cover plate 3 on one side of the cover plate 3 is tilted firstly to drive the rotating crankshafts 2 on the side of the cover plate 2 to rotate firstly, and then the cover plate 3 on one side of the cover plate 3 is tilted later to drive the rotating crankshafts 2 on the side of the cover plate, so that all the rotating crankshafts 2 are not synchronously started at the moment when the cover plate 3 is opened, and the cover plate 3 is not stably started.

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

The installation base body 1 and the rotating crankshaft 2 can be rotationally connected through the connecting pin 11, and specifically, the installation base body 1 and the rotating crankshaft 2 can be provided with connecting holes, and the connecting pin 11 is installed in the connecting holes.

In this embodiment, the cover plate 3 is used to cover the water inlet 101 of the original water tank 100, so as to prevent impurities or dust from entering the original water tank 100 through the water inlet 101, polluting water or blocking the water inlet and outlet of the original water tank 100.

The other ends of the cover plate 3 and the rotary crankshaft 2 can be rotatably connected through a rotating shaft, specifically, rotating holes are formed in the other ends of the cover plate 3 and the rotary crankshaft 2, and the rotating shaft is arranged in the rotating holes.

The rotary crankshaft 2 is used for connecting the cover plate 3 and the installation base body 1, and the rotary crankshaft 2 is also convenient for realizing the overturning of a certain angle of the cover plate 3 relative to the installation base body 1, so that the first-stage overturning state is reached.

In terms of the arrangement shape, the rotary crankshaft 2 of the embodiment is set to be a U-shaped overturning ring, one end of the U-shaped overturning ring connected with the mounting base body 1 is a plane, one end of the U-shaped overturning ring connected with the cover plate 3 is set to be an involute profile, and the mounting base body 1 is clamped and limited to the U-shaped overturning ring in the first-stage overturning state. The rotating crankshaft 2 is specifically set to be a U-shaped overturning ring, and the installation base body 1 is clamped and limited to the U-shaped overturning ring in a first-stage overturning state so as to position the U-shaped overturning ring, so that the U-shaped overturning ring cannot continue overturning relative to the installation base body 1.

In this embodiment, as shown in fig. 11 to 14, when the cover plate 3 rotates to the first stage overturning state, the rotation of the rotary crankshaft 2 relative to the mounting base 1 reaches the maximum angle, that is, the rotary crankshaft 2 is at the stop position limited by the clamping of the mounting base 1, and the cover plate 3 can not realize continuous overturning through the rotation of the rotary crankshaft 2 relative to the mounting base 1.

Alternatively, as shown in FIG. 13, in the first-stage flipped state, the cover plate 3 has an angle α with the top surface of the mounting base 1 of 0 ° < α+.ltoreq.90°. So that the angle alpha between the cover plate 3 and the top surface of the mounting base 1 is within a reasonable range when the cover plate 3 is turned over for the first stage.

Specifically, in the first-stage overturning state, the included angle α may be set to 45 °, 60 ° or 90 °, and in this embodiment, it is preferable that in the first-stage overturning state, the included angle α is equal to 90 °, so as to avoid the cover plate 3 from interfering with the water feeding operation of the water feeding port 101.

In order to increase the overturning angle range of the cover plate 3, in this embodiment, the overturning state further includes a second-stage overturning state, after the cover plate 3 reaches the first-stage overturning state, the cover plate 3 can be overturned from the first-stage overturning state to the second-stage overturning state relative to the rotary crankshaft 2, and in the process of overturning the cover plate 3 from the first-stage overturning state to the second-stage overturning state, the synchronous locking mechanism 4 is unlocked so that the cover plate 3 can rotate relative to the rotary crankshaft 2.

Above-mentioned setting, through locking and unblock between synchronous locking mechanical system 4 to apron 3 and the rotatory bent axle 2, design apron 3 into the two-stage form of overturning, the in-process that apron 3 overturned to first order upset state, apron 3 uses the tie point of rotatory bent axle 2 and installation base member 1 to overturn as the center of rotation, the in-process that apron 3 overturned to second order upset state from first order upset state, synchronous locking mechanical system 4 unblock is in order to make apron 3 can regard the tie point with rotatory bent axle 2 as the center of rotation to continue to overturn, with this upset angle range that has enlarged apron 3, make things convenient for apron 3 to dodge bigger space, be convenient for water adding port 101 to add water or other operations.

Under the first-stage overturning state, the U-shaped overturning ring is clamped and limited by the installation base body 1, so that the rotary crankshaft 2 cannot continue overturning relative to the installation base body 1, the cover plate 3 can only overturn to the second-stage overturning state relative to the rotary crankshaft 2, and the accuracy and reliability of the second-stage overturning are improved.

In this embodiment, as shown in fig. 14, in the second stage flip state, the included angle β between the cover plate 3 and the top surface of the mounting base 1 is 90 ° < β+.ltoreq.180°. So that when the cover plate 3 turns over in the second stage, the included angle beta between the cover plate 3 and the top surface of the installation base body 1 is at least more than 90 degrees, thereby completely avoiding the space above the water filling port 101 and facilitating water filling or other operations above the water filling port 101.

Specifically, in the second stage overturning state, the included angle β may be set to 120 °, 150 ° or 180 °, and in this embodiment, the included angle β is preferably equal to 180 ° in the second stage overturning state, that is, the cover plate 3 is completely parallel to the top surface of the mounting base 1, so as to realize complete opening of the cover plate 3.

In terms of specific structural arrangement, in this embodiment, as shown in fig. 3 to 9, the synchronous locking mechanism 4 includes a locking ratchet 41 and an elastic locking portion 42, where the locking ratchet 41 is connected to the cover plate 3, the locking ratchet 41 has a first locking chute 411, the elastic locking portion 42 is telescopically disposed at one end of the rotating crankshaft 2 connected to the cover plate 3, during the process of turning over the cover plate 3 to the first stage turning state, the elastic locking portion 42 is elastically abutted in the first locking chute 411 under the action of elastic force, so that the cover plate 3 and the rotating crankshaft 2 are locked, and during the process of turning over the cover plate 3 from the first stage turning state to the second stage turning state, the locking ratchet 41 presses the elastic locking portion 42 to disengage the elastic locking portion 42 from the first locking chute 411, so that the cover plate 3 and the rotating crankshaft 2 are unlocked.

In the above arrangement, when the cover plate 3 is turned to the first stage turning state, the elastic locking portion 42 is elastically abutted in the first locking chute 411 under the action of elastic force, so that the cover plate 3 and the rotary crankshaft 2 are locked, the cover plate 3 and the rotary crankshaft 2 are turned relative to the mounting base 1 together, and the cover plate 3 drives the locking ratchet 41 to rotate relative to the elastic locking portion 42 when the cover plate 3 continues to turn from the first stage turning state to the second stage turning state, so that the elastic locking portion 42 is elastically contracted by applying a downward force to the elastic locking portion 42 through the first locking chute 411, and the elastic locking portion 42 is gradually separated from the first locking chute 411, so that the cover plate 3 and the rotary crankshaft 2 are unlocked, and the cover plate 3 can further continue to turn to the second stage turning state relative to the rotary crankshaft 2.

It can be understood that when the cover plate 3 is turned one level by applying the first-level turning force to the cover plate 3 (turned to the first-level turning state), the rotating crankshaft 2 and the cover plate 3 are limited by the elastic abutting engagement of the elastic locking portion 42 and the first locking chute 411, so that an integral stress is formed between the rotating crankshaft 2 and the cover plate 3, and a rotational degree of freedom exists between the rotating crankshaft 2 and the mounting base 1, so that the rotating crankshaft 2 and the cover plate 3 are turned together integrally with respect to the mounting base 1 under the action of the first-level turning force. When the cover plate 3 is subjected to the second-stage overturning by applying the second-stage overturning force to the cover plate 3 in the first-stage overturning state (namely, the cover plate 3 is overturned from the first-stage overturning state to the first-stage overturning state), since the rotating crankshaft 2 reaches the maximum angle relative to the rotation of the mounting base body 1 (the rotating crankshaft 2 cannot rotate any more), the cover plate 3 drives the locking ratchet wheel 41 to rotate relative to the elastic locking part 42 under the action of the second-stage overturning force, and a downward inclined pressure (in a direction away from the locking ratchet wheel 41) is generated on the elastic locking part 42 through the first locking chute 411, the elastic locking part 42 is gradually separated from the first locking chute 411 by the downward pressure, so that the unlocking between the cover plate 3 and the rotating crankshaft 2 can be realized, and the cover plate 3 continues to overturned to the second-stage overturning state relative to the rotating crankshaft 2.

It should be noted that, the second-stage turning force is greater than the first-stage turning force, namely, when the first-stage turning is performed, a smaller first-stage turning force is applied to the cover plate 3, so that synchronous starting of the cover plate 3 and all the rotary crankshafts 2 can be realized, when the second-stage turning is performed, a second-stage turning force greater than the first-stage turning force is applied to the cover plate 3, so that unlocking of the cover plate 3 and the rotary crankshafts 2 can be realized, the cover plate 3 is more labor-saving in performing the first-stage turning operation, and meanwhile, the situation that misoperation of the cover plate 3 and the rotary crankshafts 2 occurs in the first-stage turning process is avoided, and two-stage turning movement with distinct cover plate 3 layers is realized.

Of course, the magnitudes of the primary turning force and the secondary turning force may be obtained by performing experiments in use, and the present embodiment is not particularly limited.

Specifically, the locking ratchet 41 is an annular wheel, 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 disposed with respect to the center of the locking ratchet 41, the inclined surface and the arc surface of the locking ratchet 41 cooperate to form a first locking chute 411, that is, the arc surface of the locking ratchet 41 forms the bottom of the first locking chute 411, and the inclined surface of the ratchet 412 forms the side wall of the first locking chute 411.

The other side surface of the ratchet 412 opposite to the inclined surface is an arc surface, the radian of the arc surface gradually decreases along the direction away from the inclined surface, and in the process of overturning the cover plate 3 to the second-stage overturning state, the cover plate 3 drives the ratchet 412 to move relative to the locking pin 421, so that the locking pin 421 moves relatively from the first locking chute 411 to the arc surface of the ratchet 412. The radian of the arc surface is gradually reduced along the direction away from the inclined plane, so that the locking pin 421 firstly presses down the locking spring 422 under the ratchet 412 to unlock, and then gradually stretches out and is in butt fit with the arc surface of the ratchet 412 under the elasticity of the locking spring 422, so that the arc surface of the ratchet 412 is a curved surface with gradually changed radian when the cover plate 3 is turned and closed, and is in point-surface fit with the locking pin 421 and is not a blocking surface in relative fit, in the whole opening and closing turning movement process of the cover plate 3, turning resistance exists only when the cover plate is turned over, all the rotary crankshafts 2 are started simultaneously when the cover plate 3 is turned over to a first-stage turning state, and the cover plate 3 can be turned over smoothly due to the existence of no resistance when the cover plate 3 is turned over and closed, so that the whole closing process can be completed without too much force, and the operation is labor-saving.

In the present embodiment, the lock ratchet 41 is connected to the cover plate 3 via the rotation shaft, and when the lock ratchet 41 is brought into abutting engagement with the elastic locking portion 42, the cover plate 3 connected to the lock ratchet 41 and the rotary crankshaft 2 connected to the elastic locking portion 42 can be locked in a limited position.

The elastic locking portion 42 can be elastically abutted against the inclined surface of the ratchet 412 (i.e., the side wall of the first locking chute 411) and the arc surface of the locking ratchet 41 (i.e., the bottom of the first locking chute 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 downward inclined pressure (away from the locking ratchet 41) on the elastic locking portion 42, so that the elastic locking portion 42 is gradually separated from the inclined surface of the ratchet 412, and unlocking between the cover plate 3 and the rotating crankshaft 2 is achieved.

In the present embodiment, the elastic locking portion 42 has a second locking chute 4211, and the second locking chute 4211 is snap-fitted with the first locking chute 411 in the process of turning the cover plate 3 to the first-stage turning state.

By the arrangement, the second locking chute 4211 is further arranged on the elastic locking portion 42, and the second locking chute 4211 is matched with the first locking chute 411 in a clamping manner, so that the limit between the elastic locking portion 42 and the locking ratchet wheel 41 is enhanced, the locking stability between the cover plate 3 and the rotating crankshaft 2 in the process of turning to the first-stage turning state is improved, and the risk of false unlocking in the turning process is reduced.

As a preferred solution of the present embodiment, the elastic locking portion 42 includes a locking pin 421 and a locking spring 422, the locking pin 421 is movably disposed in the locking mounting groove 21 of the rotary crankshaft 2, the locking pin 421 is adapted to cooperate with the first locking chute 411, the second locking chute 4211 is disposed on a surface of the locking pin 421 facing the locking ratchet 41, and the locking spring 422 is disposed in the locking mounting groove 21 and is connected to an end of the locking pin 421 remote from the locking ratchet 41.

In the above arrangement, when the cover plate 3 is turned to the first stage turning state, the locking pin 421 is elastically abutted in the first locking chute 411 and the second locking chute 4211 is engaged with the first locking chute 411 under the action of the elastic force of the locking spring 422, so as to lock the cover plate 3 and the rotating crankshaft 2, and when the cover plate 3 continues to be turned from the first stage turning state to the second stage turning state, the cover plate 3 drives the locking ratchet 41 to rotate relative to the elastic locking portion 42, so that the second locking chute 4211 and the first locking chute 411 are gradually separated and a downward pressure is applied to the locking pin 421 through the first locking chute 411 to enable the locking pin 421 to be elastically contracted, and further the locking pin 421 is gradually separated from the first locking chute 411, so that unlocking of the cover plate 3 and the rotating crankshaft 2 is achieved.

Specifically, the bottom of the locking pin 421 is installed in the locking installation groove 21, the top of the locking pin 421 can extend out of the locking installation groove 21, the second locking chute 4211 is used for being in locking fit with the first locking chute 411, the locking spring 422 is sleeved at the bottom of the locking pin 421 and is connected with the bottom of the locking installation groove 21, and the deformation direction of the locking spring 422 can be limited and guided through the locking pin 421.

In addition, as shown in fig. 1 to 6, in order to reduce the appearance gap of the cover plate 3, the cover plate 3 is ensured to be fastened on the mounting base 1 under the condition that no external force is applied or only slight external force impact is applied, the cover plate overturning structure of the embodiment further comprises a damping mechanism 5, the damping mechanism 5 is arranged on the rotating crankshaft 2, the damping mechanism 5 is in friction butt with the inner wall of the mounting base 1, and in the process of rotating the crankshaft 2 to drive the damping mechanism 5 to overturn, the damping mechanism 5 slides in friction with respect to the inner wall of the mounting base 1.

Above-mentioned setting, under the circumstances that apron 3 lid was closed, synchronous locking mechanical system 4 locks apron 3 and rotatory bent axle 2 all the time, further through the damping mechanism 5 that sets up, make apron 3 not exert external force or under slight external force impact, can increase the pretightning force to apron 3 lid time through the friction butt of damping mechanism 5 with installation base member 1 inner wall, realize apron 3 more closely lid and close in installation base member 1, prevent that apron 3 from rocking, reduce the outward appearance gap of apron 3, simultaneously at the in-process of apron 3 upset to first order upset state, rotatory bent axle 2 synchronous drive damping mechanism 5 relative installation base member 1's inner wall friction slip, can strengthen the upset resistance of apron 3, increase the damping sense of opening apron 3 and the feel of apron 3 opening and shutting, promote apron 3 stability that opens and shuts.

In this embodiment, as shown in fig. 1, 2, 4 and 10, 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, 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.

The above arrangement, the outer end of the damping pin 51 abuts against the inner wall of the installation base body 1 under the action of the elasticity of the damping spring 52, so that the friction force between the rotary crankshaft 2 and the installation base body 1 is enhanced, the pretightening force of the cover plate 3 is improved, when the rotary crankshaft 2 synchronously drives the damping pin 51 and the damping spring 52 to overturn, the outer end of the damping pin 51 is driven to overcome the friction force to slide on the inner wall of the installation base body 1 in a friction manner, the damping overturning of the cover plate 3 is further realized, the damping spring 52 realizes the flexible abutting between the damping pin 51 and the installation base body 1, and excessive abrasion caused by rigid contact between the damping pin 51 and the installation base body 1 is avoided.

Furthermore, it can be appreciated that, since the rotary crankshaft 2 and the mounting base 1 are rotatably connected by the connecting pin 11, the connection between the rotary crankshaft 2 and the mounting base 1 can be enhanced by the provision of the damping mechanism 5, and the axial play of the two along the connecting pin 11 can be avoided.

To facilitate the installation of the damper mechanism 5, in this embodiment, the rotary crankshaft 2 is provided with a damper mounting groove 22, the damper mechanism 5 further includes a damper seat 53, the damper seat 53 is installed in the damper mounting groove 22, the damper pin 51 is movably disposed on the damper seat 53, and the damper spring 52 is disposed between the inner end of the damper pin 51 and the inner wall of the damper mounting groove 22.

In the above arrangement, the damper pin 51 is movably disposed in the damper mounting groove 22 through the damper seat 53, and the damper pin 51 is pushed to move relative to the damper seat 53 and the rotary crankshaft 2 by the elastic force of the damper spring 52, so that the outer end of the damper pin 51 elastically abuts against the inner wall of the mounting base 1, thereby realizing friction abutment between the two.

Specifically, damping mounting groove 22 sets up in the one end that is close to installation base member 1 of rotatory bent axle 2, the both sides joint of damping seat 53 realizes the location in damping mounting groove 22's inner wall, the middle part of damping seat 53 is equipped with the outside hole of dodging of intercommunication rotatory bent axle 2, damping pin 51 movably sets up in dodging the hole and the outer end of damping pin 51 passes dodging the hole, rotatory bent axle 2 and installation base member 1's inner wall friction butt, damping spring 52's one end and damping mounting groove 22's inner wall fixed connection, damping spring 52's the other end and damping pin 51's inner fixed connection, promote damping pin 51 and can overcome damping spring 52's elasticity and make damping pin 51 retract damping mounting groove 22, loosen damping pin 51 and can make damping pin 51 remove with friction butt in installation base member 1's inner wall under damping spring 52's elasticity, and simple to operate.

In terms of the arrangement shape, the damper seat 53 and the damper pin 51 may each be provided in an omega-shaped, U-shaped structure.

Further, in order to avoid the damping pin 51 from tilting during the frictional sliding relative to the inner wall of the mounting base 1, the cover plate 3 is unstable in overturning, in this embodiment, the inner wall of the mounting base 1 is provided with a damping groove 54, the damping groove 54 is disposed along the movement track of the damping pin 51, and the outer end of the damping pin 51 is in frictional contact with the damping groove 54.

According to the arrangement, the damping groove 54 is formed in the inner wall of the mounting base body 1 along the movement track direction of the damping pin 51, so that the damping pin 51 always slides in a friction manner along the damping groove 54 when overturning, the movement accuracy of the damping pin 51 is improved, and the stable overturning of the cover plate 3 is ensured.

Specifically, the damping pin 51 turns round the connection point of the rotating crankshaft 2 and the mounting base 1 in a circular arc shape, and the movement track of the damping pin is also in a circular arc shape, so that the damping groove 54 is correspondingly arranged as a circular arc groove, and the width of the damping groove 54 is matched with the diameter of the outer end of the damping pin 51, so that the outer end of the damping pin 51 is matched and clamped in the damping groove 54.

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

It should be noted that, since the installation position of the damping mechanism 5 is designed at the end of the rotating crankshaft 2 near the installation base 1, that is, near the root position of the primary turning center of the rotating crankshaft 2, the motion track of the whole process does not exceed the designed range of the damping slot 54, so that the friction between the damping pin 51 and the installation base 1 of the damping mechanism 5 is always present and unchanged in the whole opening and closing process of the cover plate 3, and the damping hand feeling of the damping mechanism is kept constant in the whole opening and closing process of the cover plate 3.

In order to consider the installation cost and the overturning stability of the cover plate 3, in this embodiment, two rotating crankshafts 2, a synchronous locking mechanism 4 and a damping mechanism 5 are respectively arranged, the rotating crankshafts 2 are respectively arranged along two inner walls of the installation base body 1, the synchronous locking mechanism 4 is arranged between each rotating crankshaft 2 and the cover plate 3 to lock the two rotating crankshafts 2 and the cover plate 3, synchronous starting of the cover plate 3 and the two rotating crankshafts 2 is achieved, and the two rotating crankshafts 2 are respectively correspondingly provided with one damping mechanism 5 to promote damping friction between the rotating crankshafts 2 and the installation base body 1.

Of course, in some embodiments, the number of the rotating crankshafts 2 may be 3, 5 or more, and accordingly, one synchronous locking mechanism 4 needs to be provided 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.

In order to facilitate understanding of the cover plate overturning structure of the embodiment, the following description will be made on the use process of the cover plate overturning structure:

the cover plate 3 is in a closed state: the synchronous locking mechanism 4 always locks the cover plate 3 and the rotary crankshaft 2, and the damping pin 51 is in friction abutting connection with the damping groove 54 on the inner wall of the mounting base body 1 under the action of the elastic force of the damping spring 52, so that the cover plate 3 is tightly covered on the mounting base body 1;

The cover plate 3 is turned from the closing state to the first-stage turning state: the cover plate 3 is applied with a primary overturning force, the locking pin 421 is elastically abutted in the first locking chute 411 under the action of the elastic force of the locking spring 422, and the second locking chute 4211 is in clamping fit with the first locking chute 411, so that the cover plate 3 and the rotary crankshaft 2 are locked, the cover plate 3 and the rotary crankshaft 2 are integrally overturned relative to the mounting base body 1 under the action of the primary overturning force, the outer end of the damping pin 51 is driven to slide in a friction manner along the damping groove 54 until the cover plate 3 overturns to form an included angle of 90 degrees with the top surface of the mounting base body 1, and the rotary crankshaft 2 is in abutting limit with the mounting base body 1 at the moment;

the cover plate 3 is turned from the first-stage turning state to the second-stage turning state: the cover plate 3 is applied with a second-level overturning force (larger than the first-level overturning force), the cover plate 3 drives the locking ratchet wheel 41 to rotate relative to the elastic locking part 42, the second locking chute 4211 is gradually separated from the first locking chute 411, the locking pin 421 is applied with a lower pressure through the first locking chute 411 to enable the locking spring 422 to elastically shrink, the locking pin 421 is further gradually separated from the first locking chute 411, unlocking of the cover plate 3 and the rotary crankshaft 2 is achieved, and the cover plate 3 continues to overturn relative to the rotary crankshaft 2 to form an included angle of 180 degrees with the top surface of the installation base body 1.

It should be noted that, when the cover plate 3 needs to be covered, only the cover plate 3 needs to be turned reversely, so that the cover plate 3 is turned from the second stage turning state to the first stage turning state in sequence, in this process, the locking pin 421 is gradually engaged in the first locking chute 411 to lock the cover plate 3 and the rotating crankshaft 2 again, and the cover plate 3 is turned from the first stage turning state to the covering state.

On the other hand, as shown in fig. 15, the present embodiment also provides a water purifying dispenser, which includes a main body 200, a raw water tank 100, and a cover plate turnover structure of the present embodiment, wherein the raw water tank 100 is connected with the main body 200, the raw water tank 100 has a water filling port 101, and the cover plate 3 is covered on the water filling port 101 by the cover plate turnover structure. Because the clean water dispenser of this embodiment includes the cover plate turnover structure of this embodiment, this clean water dispenser has the same technical effect as the cover plate turnover structure, and will not be described here again.

Of course, in other embodiments, the cover plate overturning structure may be provided on the water dispenser or other drinking devices with the original water tank 100, which is not limited to the present embodiment.

Alternatively, the installation base 1 in the cover plate turnover structure may be the main body 200 or the raw water tank 100, so that the cover plate turnover structure is arranged on the main body 200 or the raw water tank 100 to cover the water filling port 101.

The installation base body 1 in the cover plate overturning structure can be connected to the machine body 200 or the original water tank 100 through a buckle structure, namely, the rotary crankshaft 2 is connected with the installation base body 1, and then the rotary crankshaft 2 and the cover plate 3 are integrally installed on the machine body 200 or the original water tank 100 through the installation base body 1, so that modularized installation is realized.

Of course, the above description is merely an optimal technical solution of the present embodiment, and:

in some embodiments, the elastic locking portion 42 may be directly configured as an elastic column, and the elastic expansion and contraction is realized by virtue of the elasticity of the elastic column itself.

In some embodiments, the damping mechanism 5 may also be provided as a protruding structure extending along the surface of the rotating crankshaft 2, and the cover plate 3 is turned by friction against the inner wall of the mounting base 1.

In some embodiments, the damper spring 52 and the damper pin 51 may be directly disposed outside the rotary crankshaft 2, that is, the damper spring 52 and the outer surface of the rotary crankshaft 2 are connected, and the damper pin 51 and the damper spring 52 are connected.

Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.

Claims (14)

1. A cover plate overturning structure, characterized by comprising:

a mounting base (1);

the cover plate (3) can be overturned relative to the mounting base body (1), and the overturned state comprises a first-stage overturned state;

one end of the rotating crankshaft (2) is rotatably connected with the mounting base body (1), the other end of the rotating crankshaft is rotatably connected with the cover plate (3), and the cover plate (3) is connected with the mounting base body (1) through at least two rotating crankshafts (2);

the synchronous locking mechanism (4) is arranged between the cover plate (3) and the rotating crankshaft (2), and in the process that the cover plate (3) drives the rotating crankshaft (2) to rotate to a first-stage overturning state relative to the mounting base body (1), the cover plate (3) and the rotating crankshaft (2) are locked by the synchronous locking mechanism (4) so as to prevent relative rotation of the cover plate (3) and the rotating crankshaft (2).

2. The cover plate turning structure according to claim 1, wherein the turning state further includes a second-stage turning state, the cover plate (3) is turned from the first-stage turning state to the second-stage turning state with respect to the rotary crankshaft (2) after the cover plate (3) reaches the first-stage turning state, and the synchronization locking mechanism (4) is unlocked to enable the cover plate (3) to rotate with respect to the rotary crankshaft (2) during the turning of the cover plate (3) from the first-stage turning state to the second-stage turning state.

3. The cover plate turning structure according to claim 2, wherein the synchronization locking mechanism (4) includes:

a locking ratchet (41), the locking ratchet (41) being connected to the cover plate (3), the locking ratchet (41) having a first locking chute (411);

elastic locking part (42), telescopic set up in rotatory bent axle (2) connect the one end of apron (3) in apron (3) upset extremely in-process of first order upset state, elastic locking part (42) elasticity butt in first locking chute (411) under the elasticity effect makes apron (3) with rotatory bent axle (2) locking, in apron (3) follow first order upset state extremely in-process of second order upset state, locking ratchet (41) push down elastic locking part (42) make elastic locking part (42) deviate from first locking chute (411), make apron (3) with rotatory bent axle (2) unblock.

4. A cover turning structure according to claim 3, characterized in that the resilient locking portion (42) has a second locking chute (4211), which second locking chute (4211) is in a snap fit with the first locking chute (411) during turning of the cover (3) to the first stage turning state.

5. The cover turning structure according to claim 4, wherein the elastic locking portion (42) includes:

a locking pin (421) movably disposed in a locking mounting groove (21) of the rotary crankshaft (2), the locking pin (421) being adapted to cooperate with the first locking chute (411), the second locking chute (4211) being disposed on a surface of the locking pin (421) facing the locking ratchet (41);

and a locking spring (422) arranged in the locking mounting groove (21) and connected with one end of the locking pin (421) away from the locking ratchet wheel (41).

6. The cover plate overturning structure according to any one of claims 1 to 5, further comprising a damping mechanism (5), wherein the damping mechanism (5) is disposed on the rotating crankshaft (2), the damping mechanism (5) is in friction abutment with an inner wall of the mounting base body (1), and the damping mechanism (5) slides in friction relative to the inner wall of the mounting base body (1) in the process that the rotating crankshaft (2) drives the damping mechanism (5) to overturn.

7. The cover plate turning structure according to claim 6, wherein the damping mechanism (5) includes:

a damper pin (51) whose outer end abuts against the inner wall of the mounting base body (1);

And one end of the damping spring (52) is connected with the rotating crankshaft (2), the other end of the damping spring (52) is connected with the inner end of the damping pin (51), and the damping pin (51) is abutted against the inner wall of the mounting base body (1) under the elasticity of the damping spring (52).

8. The cover plate overturning structure according to claim 7, characterized in that the rotary crankshaft (2) is provided with a damping mounting groove (22), the damping mechanism (5) further comprises a damping seat (53), the damping seat (53) is mounted in the damping mounting groove (22), the damping pin (51) is movably arranged on the damping seat (53), and the damping spring (52) is arranged between an inner end of the damping pin (51) and an inner wall of the damping mounting groove (22).

9. The cover plate overturning structure according to claim 7, wherein a damping groove (54) is formed in the inner wall of the mounting base body (1), the damping groove (54) is formed along the movement track of the damping pin (51), and the outer end of the damping pin (51) is in friction abutting connection with the damping groove (54).

10. The cover plate overturning structure according to any one of claims 1 to 5, characterized in that the rotating crankshaft (2) is a U-shaped overturning ring, one end of the U-shaped overturning ring connected with the mounting base body (1) is a plane, one end of the U-shaped overturning ring connected with the cover plate (3) is set to be an involute profile, and the mounting base body (1) is clamped and limited to the U-shaped overturning ring in the first-stage overturning state.

11. The cover-plate turning structure according to any one of claims 2 to 5, characterized in that in the first-stage turning state the cover plate (3) has an angle α of 0 ° < α+.ltoreq.90° with the top surface of the mounting base body (1), and in the second-stage turning state the cover plate (3) has an angle β of 90 ° < β+.ltoreq.180°.

12. A water purifying dispenser, comprising:

a body (200);

a raw water tank (100) connected with the machine body (200), wherein the raw water tank (100) is provided with a water inlet (101);

the cover plate turnover structure according to any one of claims 1 to 11, wherein the cover plate (3) is covered on the water filling port (101) by the cover plate turnover structure.

13. The water purifying dispenser according to claim 12, wherein the mounting base (1) in the cover flip structure is the main body (200) or the raw water tank (100).

14. The water purifying dispenser according to claim 12, wherein the mounting base (1) in the cover flip structure is connected to the main body (200) or the raw water tank (100) by a snap-on structure.