A normally closed cup cover with a lock and linkage exhaust

Abstract

The invention discloses a normally closed cup lid with lock-linked exhaust. The cup lid has an ingenious structure, and the lock can be unlocked to realize exhaust synchronously, which is safe and reliable, and has a good user experience. The cup lid comprises a cover body provided with a water outlet and an exhaust hole, and an on-off valve for opening and closing the water outlet and the exhaust hole. A pressing piece is provided above the exhaust hole and is hinged on the top surface of the cover body. The on-off valve passes through the exhaust hole and its top contacts the bottom surface of the pressing piece. A lock assembly is also movably arranged on the pressing piece, and a plug plate is provided on the lock assembly. When the lock assembly is moved inward, the cup lid is in an unlocked state. At this time, the plug plate is inserted between the pressing piece and the on-off valve to move the on-off valve downward to open the exhaust hole for exhaust, and the pressing piece can be pressed to rotate to move the on-off valve further downward to open the water outlet. After the pressing piece is released, the on-off valve is reset and the water outlet is closed. When the lock assembly is moved outward, the cup lid is in a locked state, and the plug plate is separated from the on-off valve to reset and close the exhaust hole.

Description

Technical Field

[0001] The present invention belongs to the technical field of water cups, and particularly relates to a normally closed cup cover with a lock linkage exhaust structure. Background Art

[0002] There are generally two types of existing cup covers for water cups. One is directly threadedly connected to the water cup, and the cup cover needs to be completely unscrewed when drinking water. The other is that the cover body is threadedly connected to the water cup, and the upper flip cover is hinged to the cover body and controlled to open by pressing a button, that is, a pop-up cup cover. However, after drinking water, the cup covers of these two structures are prone to the phenomenon that the lid is not tightly closed, and the water in the cup leaks out, causing inconvenience in use.

[0003] In view of the above deficiencies, for example, the utility model patent with the publication number CN201948619U discloses a push-pull type lid, including a threaded main lid connected to the bottle body. A middle lid and an upper lid are sequentially connected to the threaded main lid. A water outlet is opened on the threaded main lid. The upper lid is provided with a water outlet channel. The lower end of the water outlet channel is communicated with the water outlet. A water sealing piece is installed at the water outlet. One end face of the water sealing piece is hinged to the threaded main lid, and its lower end is connected with a push-pull mechanism that drives it to swing. The push-pull mechanism is connected with a button, and the button is installed on the upper lid. And the push-pull mechanism includes a push rod and a cross bar that make translational movements. The push rod is installed in the row groove on the upper end face of the threaded main lid, and its outer end is connected with the button. The push rod and the cross bar are connected by a rocker arm. The cross bar is arranged on the cover piece of the threaded main lid. A through hole is opened on the cover piece. The cross bar is connected with the water sealing piece through a connecting rod. A return spring is sleeved on the push rod. One end of the return spring is connected with the port of the row groove, and the other end is connected with the push rod. A silica gel ring is arranged between the inner end of the push rod and the inner side surface of the row groove. However, this solution still has the following defects: First, the components of the push-pull mechanism are numerous and the setting is complex. The water sealing piece can block the water outlet only by sequentially connecting the push rod, rocker arm, cross bar, and connecting rod. Second, no exhaust mechanism is provided. When the water outlet is opened, if the air pressure in the cup is too high, water spraying will occur, which is not safe enough. Third, no lock is provided. If the button is accidentally touched, the water outlet will be opened and water will flow out, causing an accident. Summary of the Invention

[0004] The purpose of the present invention is to provide a normally closed cup cover with a lock linkage exhaust structure, which has a clever structure. When the lock is unlocked, the exhaust can be realized synchronously in a linkage manner, which is safe and reliable and has a good use experience.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions.

[0006] A normally closed cup lid with lock-linked exhaust comprises a lid body provided with a water outlet and an exhaust hole and an on-off valve for opening and closing the water outlet and the exhaust hole, a pressing piece is provided above the exhaust hole and is hinged on the top surface of the lid body, the on-off valve passes through the exhaust hole and the top of the on-off valve contacts the bottom surface of the pressing piece; a lock assembly is also movably provided on the pressing piece, and a plug plate is provided on the lock assembly. When the lock assembly is moved inward, it is in an unlocked state. At this time, the plug plate is inserted between the pressing piece and the on-off valve to move the on-off valve downward to open the exhaust hole for exhaust, and the pressing piece can be pressed to rotate to move the on-off valve further downward to open the water outlet. After the pressing piece is released, the on-off valve is reset and the water outlet is closed; when the lock assembly is moved outward, it is in a locked state, and the plug plate is disengaged from the on-off valve to reset and close the exhaust hole.

[0007] By adopting the above technical scheme, a pressing piece hinged on the cover body is provided, and the on-off valve passes through the movable hole and can move up and down. By pressing the pressing piece and rotating it, the on-off valve can be controlled to move up and down, thereby controlling the opening and closing state of the water outlet. Under normal circumstances, the water outlet is closed in this structure, and water will not flow out, which is safer and more reliable; and when drinking water, you only need to press the pressing piece to drink water, which is convenient; and by setting the inward and outward movement of the locking component, it can be controlled whether the pressing piece can be pressed, so that the cup cover can realize the locking and unlocking functions, and at the same time, by arranging a plug plate on the locking component, in the unlocked state, the plug plate can synchronously move the on-off valve downward to open the movable hole to realize exhaust, which can effectively avoid the safety hazard of hot water spraying out when the water outlet is opened due to excessive air pressure in the water cup, and the problem of negative pressure forming after the hot water in the cup is cooled and it is difficult to open the water outlet; this structural design is ingenious, and the exhaust operation can be synchronized when unlocking, which can reduce the operation steps for the user and provide a good user experience.

[0008] Preferably, the lock assembly includes a lock push piece and a lock core; the pressing piece and the lock core are respectively provided with a through hole and a mounting hole, and a mounting buckle is correspondingly provided below the lock push piece, which passes through the through hole and is snap-connected with the mounting hole, so that the lock push piece can drive the lock core to move in and out on the pressing piece; the plug plate is arranged on the lock core, and a lock rod is provided below the lock core, and a block is correspondingly provided on the cover body; when the lock rod is aligned with the block, it is in a locked state; when the lock rod is misaligned with the block, it is in an unlocked state.

[0009] By adopting the above technical solution, the lock component drives the lock core to move by setting a lock push piece, and the lock rod of the lock core cooperates with the block in the installation cavity to achieve locking and unlocking.

[0010] Preferably, the lower part of the end of the plug plate is an inclined surface, and when the lock push piece is pushed inward, the plug plate also moves inward, and at the same time the inclined surface squeezes the on-off valve to make it move downward.

[0011] By adopting the above technical solution, the lower part of the end of the plug plate is set as an inclined surface, which facilitates the smooth insertion of the plug plate between the on-off valve and the pressing plate, and is more labor-saving and smooth.

[0012] Preferably, an installation cavity is provided on the other side of the surface of the lid body where the water outlet is located. The exhaust hole is provided at the bottom of the installation cavity, and the stopper is arranged in the installation cavity corresponding to the locking rod. The side walls of the installation cavity are symmetrically provided with sliding grooves, and the sliding grooves are provided with a limiting part and a hinged part from the outside to the inside. The limiting part includes an upper limiting part and a lower limiting part. The lower limiting part is inclined downward from the inside to the outside, making the limiting part present a horn shape with a large opening facing outward. On both sides of one end of the pressing piece, there are hinge shafts, and the pressing piece is hinged on the lid body through the hinge shafts in cooperation with the hinged part. The pressing piece is also provided with convex edges on both sides. When the pressing piece rotates around the hinge shaft, the convex edges are limited by the upper limiting part and the lower limiting part.

[0013] With the above technical solution, the lid body is provided with an installation cavity, and a movable hole and a sliding groove are arranged in the installation cavity. The limiting part of the sliding groove is in the shape of a horn with a large opening facing outward, which is convenient for the guiding installation of the pressing piece, and the horn shape formed by the upper and lower limiting parts of the limiting part can just limit the rotation stroke of the pressing piece.

[0014] Preferably, the on-off valve includes a valve core and a spring; a connecting rod and a plug are arranged on the valve core. The connecting rod passes through the exhaust hole and its top abuts against the bottom surface of the pressing piece. A spring buckle is detachably arranged at the upper end of the connecting rod. The spring is sleeved on the connecting rod and limited between the spring buckle and the bottom surface of the installation cavity. And an exhaust hole sealing ring is sleeved at the lower end of the connecting rod for sealing the exhaust hole; the plug is located below the water outlet, and a water outlet sealing ring is arranged on it for closing the water outlet.

[0015] With the above technical solution, by simultaneously arranging a connecting rod and a plug on the valve core, and respectively arranging a water outlet sealing ring and an exhaust hole sealing ring, the water outlet and the exhaust hole can be closed simultaneously, making the structure more compact and concise.

[0016] Preferably, the deformation amount of the water outlet sealing ring is greater than the thickness of the plug board, and the thickness of the plug board is greater than the deformation amount of the exhaust hole sealing ring; after the water outlet sealing ring and the exhaust hole sealing ring recover their deformation amounts, they open the water outlet and the exhaust hole respectively.

[0017] With the above technical solution, by setting the thickness of the plug board, the deformation amount of the water outlet sealing ring and the deformation amount of the exhaust hole sealing ring to be unequal, it can be ensured that during the exhaust process, the water outlet is always in a state of being closed by the water outlet sealing ring. Only by further pressing the pressing piece to move the on-off valve downward can the water outlet sealing ring fully recover its deformation amount to open the water outlet. This setting is safer and more reliable.

[0018] Preferably, a groove is provided on the upper surface of the pressing piece, and the lock buckle pushing piece is movably arranged in the groove.

[0019] With the above technical solution, by arranging the lock buckle pushing piece in the groove of the pressing piece, the moving stroke of the lock buckle assembly can be limited.

[0020] Preferably, a protruding pushing part is further provided on the top surface of the latch pushing piece.

[0021] With the above technical solution, by providing a protruding pushing part on the top surface of the latch pushing piece, it is convenient for the user to push the latch pushing piece, which is more user-friendly.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: With the above technical solution, by providing a pressing piece hinged on the cover body, the on-off valve passes through the movable hole and can move up and down. By pressing and rotating the pressing piece, the up and down movement of the on-off valve can be controlled, thereby controlling the opening and closing state of the water outlet. In this structure, the water outlet is closed under normal circumstances, and water will not flow out, which is safer and more reliable; moreover, when drinking water, only need to press the pressing piece to drink water, which is convenient; and by setting the inner and outer movement of the latch assembly, it can be controlled whether the pressing piece can be pressed, so that the cup cover realizes the locking and unlocking functions. At the same time, by providing a plug board on the latch assembly, in the unlocked state, the plug board can synchronously move the on-off valve downward to open the movable hole for exhaust, which can well avoid the safety hazard of hot water spraying out when opening the water outlet due to excessive air pressure in the water cup, and the problem that it is difficult to open the water outlet due to negative pressure formed after the hot water in the cup cools down; this structural design is ingenious, and the exhaust operation can be synchronized during unlocking, which can reduce the operation steps for the user and has a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional exploded structural schematic diagram of the cup cover of the present invention.

[0024] Figure 2 It is a cross-sectional structural schematic diagram of the cup cover of the present invention in the locked state.

[0025] Figure 3 It is a cross-sectional structural schematic diagram of the cup cover of the present invention in the unlocked state.

[0026] Figure 4 It is a cross-sectional structural schematic diagram of the cup cover of the present invention in the opened state. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the technical solution of the present invention clearer, the following will be combined with the attached Figures 1 to 4 , the present invention will be described in detail. It should be understood that the specific embodiments described in this specification are only for explaining the present invention, and are not intended to limit the protection scope of the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

[0029] The present invention is a normally closed cup lid with a lock and linkage exhaust, as Figures 1-4 shown, which includes a lid body 1, comprising a water outlet 11 and an exhaust hole 12 that communicate vertically; a pressing piece 2 is disposed above the exhaust hole 12, and one end thereof is hinged to the top surface of the lid body 1; a on-off valve 3 moves up and down within the exhaust hole 11 of the lid body 1; pressing the pressing end of the pressing piece 2 can cause the on-off valve 3 to move downward to open the water outlet 11 of the lid body 1, and after releasing the pressing end of the pressing piece 2, the on-off valve 3 resets and closes the water outlet 11.

[0030] The lid body 1, as Figure 1 shown, has an installation cavity 13 on the surface on the other side of the water outlet 11, and the exhaust hole 12 is disposed at the bottom of the installation cavity 13; symmetrically arranged sliding grooves 131 are provided on the side wall of the installation cavity 13, and the sliding grooves 131 are provided with a limiting portion and a hinged portion 1311 from the outside to the inside. The limiting portion is set as an upper limiting portion 1312 and a lower limiting portion 1313, and the lower limiting portion 1313 is inclined downward from the inside to the outside so that the limiting portion presents a "flared shape" with a large opening facing outward; the limiting portion limits the rotational movement stroke of the pressing piece 2; a cup mouth sealing ring 4 is further provided in the annular groove on the side wall of the lid body 1 for sealing the cup mouth.

[0031] The pressing piece 2, as Figure 1 shown, has hinge shafts 21 provided on both sides of the end hinged to the lid body 1, and the hinge shafts 21 are installed in the hinged portion 1311; and convex edges 22 are further provided on both sides of the pressing piece 2. During the rotation of the pressing piece 2 around the hinge shafts 21, the convex edges 22 are limited by the upper limiting portion 1312 and the lower limiting portion 1313.

[0032] The on-off valve 3, as Figure 1 shown, includes a valve core 31, a spring 32, a spring buckle 33, a water outlet sealing ring 34 and an exhaust hole sealing ring 35; the valve core 31 includes a connecting rod 311 and a plug 312, and the spring buckle 33 is detachably arranged at the upper end of the connecting rod 311. As Figures 2-4 shown, the connecting rod 311 passes through the exhaust hole 12 and its top abuts against the bottom surface of the pressing piece 2. The spring 32 is sleeved on the connecting rod 311 and is limited between the spring buckle 33 and the bottom surface of the installation cavity 13, and an exhaust hole sealing ring 35 is sleeved on the lower end of the connecting rod 311 for sealing the exhaust hole 12; the plug 312 is located below the water outlet 11, and a water outlet sealing ring 34 is provided thereon for closing the water outlet 11.

[0033] Preferably, as Figure 1As shown, a lock assembly is also provided on the pressing piece 2, including a lock push piece 51 and a lock core 52; the pressing piece 2 and the lock core 52 are respectively provided with a through hole 23 and a mounting hole 521, and a mounting buckle 511 is correspondingly provided below the lock push piece 51, which passes through the through hole 23 of the pressing piece 2 and is snap-connected with the mounting hole 521 of the lock core 52, and the length of the through hole 23 is greater than the mounting opening 511, so that the lock push piece 51 can drive the lock core 52 to move in and out on the pressing piece 2; a lock rod 522 is provided below the lock core 52, and a stopper 132 is correspondingly provided in the mounting cavity 13 of the cover body 1; in the locked state, as shown in FIG. Figure 2 As shown, the locking rod 522 and the stopper 132 are correspondingly limited, and the pressing piece 2 cannot be pressed; the lock push piece 51 is pushed and the lock core 52 is driven to move inward, and the locking rod 522 and the stopper 132 are staggered. At this time, the pressing piece 2 can be pressed, such as Figure 3 As shown, it is in unlocked state.

[0034] As a preference, Figure 1 As shown, the upper surface of the pressing piece 2 may also be provided with a groove, and the lock push piece 51 is movably arranged in the groove, and the groove can limit the travel of the pressing piece 2 in the inward and outward directions.

[0035] As a preference, Figures 1-4 As shown, the lock core 52 is further provided with an insert plate 523, and the lower end of the insert plate 523 is an inclined surface; when the lock push piece 51 is pushed inward, the insert plate 523 also moves inward, and at the same time, the inclined surface squeezes the connecting rod 311 of the on-off valve 3 to make it move downward. At this time, the exhaust hole sealing ring 35 opens the exhaust hole 12, so that the air pressure in the water cup can be exhausted to the outside through the exhaust hole 12 to release the pressure, and the external air can also enter the water cup through the exhaust hole 12 to eliminate the negative pressure, and finally the air pressure inside and outside the water cup is balanced, so that the pressing piece 2 can be pressed to smoothly open the water outlet 11 to drink water; and because The deformation of the water outlet sealing ring 34 is greater than the thickness of the plug plate 523, and the thickness of the plug plate 523 is greater than the deformation of the exhaust hole sealing ring 35, so that when the exhaust hole sealing ring 35 opens the exhaust hole 12, the water outlet sealing ring 34 still closes the water outlet 11; the action of unlocking by pushing the lock push piece 51 is synchronized with the exhaust and pressure relief, and the exhaust operation is non-sensory and very efficient; this structure can well avoid the safety hazard of hot water spraying out when the water outlet 11 is opened due to excessive air pressure in the water cup, and the problem of negative pressure forming after the hot water in the cup cools down and it is difficult to open the water outlet 11.

[0036] As a preference, Figure 1 As shown, the top surface of the lock push piece 51 is also provided with a raised pushing portion 512 to facilitate the user to push the lock push piece 51 .

Claims

1. A normally closed cup lid with a lock and linked exhaust, comprising a lid body (1) provided with a water outlet (11) and an exhaust hole (12) and an on-off valve (3) for opening and closing the water outlet (11) and the exhaust hole (12), characterized in that: A pressing piece (2) is provided above the exhaust hole (12) and is hinged to the top surface of the cover body (1); the on-off valve (3) passes through the exhaust hole (12) and the top of the valve contacts the bottom surface of the pressing piece (2); A lock assembly is also movably arranged on the pressing plate (2) and includes a lock push plate (51) and a lock core (52); the pressing plate (2) and the lock core (52) are respectively provided with a through hole (23) and a mounting hole (521); a mounting buckle (511) is correspondingly provided below the lock push plate (51) and passes through the through hole (23) and is snap-connected with the mounting hole (521), so that the lock push plate (51) can drive the lock core (52) to move inside and outside on the pressing plate (2); a plug plate (523) is provided on the lock core (52), and a lock rod (522) is provided below the lock core (52); and a stopper (132) is correspondingly provided on the cover body (1); The lock assembly is moved inward, the lock rod (522) and the stopper (132) are misaligned and in an unlocked state. At this time, the plug plate (523) is inserted between the pressing plate (2) and the on-off valve (3) so that the on-off valve (3) moves downward to open the exhaust hole (12) for exhaust. The pressing plate (2) can be pressed to rotate so that the on-off valve (3) moves further downward to open the water outlet (11). After the pressing plate (2) is released, the on-off valve (3) is reset and the water outlet (11) is closed. The lock catch assembly is moved outward, the lock rod (522) is aligned with the stopper (132) and is in a locked state, and the plug plate (523) is disengaged from the on-off valve (3) to reset the valve and close the exhaust hole (12).

2. The normally closed cup lid with latch linkage exhaust according to claim 1, wherein: The lower end of the insert plate (523) is an inclined surface. When the lock push piece (51) is pushed inward, the insert plate (523) also moves inward and the inclined surface squeezes the on-off valve (3) to move it downward.

3. The normally closed cup lid with latch linkage exhaust according to claim 1, characterized in that: A mounting cavity (13) is provided on the surface of the cover body (1) at the other side of the water outlet (11); the exhaust hole (12) is provided at the bottom of the mounting cavity (13); a stopper (132) is provided in the mounting cavity (13) and corresponds to the locking rod (522); a sliding groove (131) is symmetrically provided on the side wall of the mounting cavity (13); the sliding groove (131) is provided with a limiting portion and a hinge portion (1311) from the outside to the inside; the limiting portion comprises an upper limiting portion (1312) and a lower limiting portion (1313); and the lower limiting portion (1311) is provided with a hinge portion (1311) and a lower limiting portion (1313). The limiting portion (1313) is inclined downward from the inside to the outside so that the limiting portion presents a trumpet shape with a large mouth facing outward; hinge shafts (21) are provided on both sides of one end of the pressing piece (2), and the pressing piece (2) is hinged to the cover body (1) through the hinge shafts (21) and the hinge portion (1311); convex edges (22) are also provided on both sides of the pressing piece (2), and when the pressing piece (2) rotates around the hinge shaft (21), the convex edge (22) is limited by the upper limiting portion (1312) and the lower limiting portion (1313).

4. The normally closed cup cover with latch linkage exhaust according to claim 3, characterized in that: The on-off valve (3) comprises a valve core (31) and a spring (32); a connecting rod (311) and a plug (312) are provided on the valve core (31); the connecting rod (311) passes through the exhaust hole (12) and the top of the connecting rod (311) contacts the bottom surface of the pressing plate (2); a spring buckle (33) is detachably provided on the upper end of the connecting rod (311); the spring (32) is sleeved on the connecting rod (311) and limited by the spring buckle (33) and the bottom surface of the installation cavity (13); and a vent sealing ring (35) is sleeved on the lower end of the connecting rod (311) for sealing the vent hole (12); the plug (312) is located below the water outlet (11) and is provided with a water outlet sealing ring (34) for closing the water outlet (11).

5. The normally closed cup lid with latch linkage exhaust according to claim 4, characterized in that: The deformation of the water outlet sealing ring (34) is greater than the thickness of the plug plate (523), and the thickness of the plug plate (523) is greater than the deformation of the vent sealing ring (35); after the water outlet sealing ring (34) and the vent sealing ring (35) have restored their deformations, the water outlet and the vent are opened respectively.

6. The normally closed cup lid with latch linkage exhaust according to claim 1, characterized in that: The upper surface of the pressing plate (2) is provided with a groove, and the locking push plate (51) is movably arranged in the groove.

7. The normally-closed cup lid with latch linkage exhaust according to claim 1, characterized in that: The top surface of the lock push piece (51) is also provided with a raised push portion (512).

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