Threadless quick opening cup lid

Abstract

The utility model discloses a kind of threadless quick-opening cup covers, cup cover is very convenient to open and close, good sealing, and will not limit the size of water outlet;Upper cover is movably arranged above lower cover;Inner plug is arranged in the cavity surrounded by upper cover and lower cover, and its lower end is connected with sealing plate through the through-hole of lower cover bottom wall;Sealing sleeve is made of elastic material, and its upper and lower ends are connected with lower cover and sealing plate respectively;Upper cover and inner plug move towards each other;Pressing upper cover, inner plug drives sealing plate to move upwards, sealing plate extrudes sealing sleeve to deform and expand outward, in cover closing state;Upper cover moves upwards, inner plug drives sealing plate to move downwards, sealing plate pulls sealing sleeve to stretch and reset, in cover opening state.

Description

Technical Field

[0001] This utility model belongs to the field of water cup lid technology, and in particular relates to a threadless quick-opening cup lid. Background Technology

[0002] Existing cup lids mainly offer two opening methods: conventional screw-on lids and one-button pop-up lids. Screw-on lids are simple, but they require unscrewing each time you drink or after drinking, which is inconvenient. While pop-up lids are convenient to open and close, the pressure of the upper lid on the lower lid is limited when closing, resulting in poor sealing performance. Therefore, to achieve a tight seal, the spout is usually small, making it easy to scald your mouth when drinking hot water as you can't see the water level. Furthermore, even with a pop-up lid, the lid is still connected to the cup body via threads, requiring you to screw it on. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a threadless quick-opening cup lid, which is very convenient to open and close, has good sealing performance, and does not restrict the size of the water outlet.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] A threadless quick-opening cup lid has an upper cover that moves vertically above a lower cover; an inner plug is located within the cavity formed by the upper and lower covers, with its lower end passing through a through hole in the bottom wall of the lower cover and connected to a sealing plate; a sealing sleeve is made of elastic material, with its upper and lower ends connected to the lower cover and the sealing plate, respectively; the upper cover and the inner plug move towards each other; when the upper cover is pressed down, the inner plug moves upward, causing the sealing plate to move, and the sealing plate compresses the sealing sleeve, deforming it outward, resulting in a closed lid state; when the upper cover moves upward, the inner plug moves downward, causing the sealing plate to move downward, and the sealing plate pulls the sealing sleeve to extend and reset, resulting in an open lid state.

[0006] Preferably, gears are rotatably connected to the gear brackets symmetrically arranged on both sides of the inner cavity of the lower cover; the upper cover and the inner plug are respectively provided with racks that mesh with the gears; the cooperation of the gears and racks causes the upper cover and the inner plug to move in opposite directions.

[0007] Preferably, the locking device is located on the upper cover and includes a button assembly, a latch, and an elastic element; the latch is movably located on the upper cover and is used to engage with the inner plug; one end of the button assembly is exposed on the outer surface of the upper cover, and the other end is used to drive the latch to disengage from the inner plug; the elastic element is used to provide elastic restoring force for the latch; when the cover is closed, the latch is engaged with the inner plug and remains in place; after pressing the button assembly, the latch disengages from the inner plug, and the upper cover and the inner plug can move up and down respectively to reset to the open cover state.

[0008] Preferably, the locking device further includes a latch movably disposed on the outer surface of the cover, which is movable between a locked position and an unlocked position; in the locked position, the latch can block and restrict the movement of the button assembly; in the unlocked position, the latch is disengaged from the button assembly, releasing the obstruction and restriction on the button assembly.

[0009] Preferably, the top cover includes an outer shell and an inner shell; the inner shell is detachably connected to the outer shell; the outer shell is provided with a hook; the inner shell is provided with a corresponding fastener; the hook and the fastener are engaged; the lower end of the inner shell sidewall is provided with symmetrical inner plug notches on both sides; the inner plug is provided with symmetrical guide plates protruding outward on both sides; the guide plates are limited to move up and down within the inner plug notches, and are also provided with latches; the lower end of the hook is provided with a buckle; when the cover is closed, the buckle engages with the latches; when the cover is opened, the top cover and the inner plug move automatically upward and downward respectively under the elastic restoring force of the return spring.

[0010] Preferably, the upper sidewall of the inner shell has symmetrically arranged buckle notches on both sides corresponding to the inner plug notch; there are two buckles, symmetrically arranged and sliding inside and outside the buckle notches; the buckles are arranged radially outward; the button assembly drives the buckles to move radially inward; a baffle is provided on the inner shell between the two buckle notches; the elastic element is a spring, which is located between the buckles and the baffle to provide elastic force for the buckles to return to their radially outward position.

[0011] Preferably, the lower end of the inner shell is provided with a plurality of first limiting hooks evenly distributed around its circumference; the lower cover is provided with a corresponding second limiting hook; the first limiting hooks and the second limiting hooks cooperate to prevent the inner shell from separating from the lower cover.

[0012] Preferably, the button assembly includes a button and a slider; the button is exposed on the outer surface of the housing; the slider is connected to the button and slides within a slider notch on the side wall of the inner housing to drive the latch; each of the four corners of the slider is symmetrically provided with a drive arm, and each of the four corners is provided with a drive ramp; the upper and lower surfaces of the latch body are provided with corresponding drive protrusions, and the drive protrusions are also provided with drive ramps; when the button assembly is pressed, the drive arm engages with the drive ramp of the drive protrusion, causing the latch to move radially inward.

[0013] Preferably, the slider also has a push rod and a clearance notch; the latch includes an operating plate exposed on the outer surface of the housing, and a limit buckle connected below the operating plate; the top surface of the housing has a movable hole, and the latch can move between the locked and unlocked positions within the movable hole; in the locked position, the limit buckle corresponds to the push rod and blocks and restricts the movement of the button assembly; in the unlocked position, the limit buckle is offset from the push rod and corresponds to the clearance notch, releasing the obstruction and restriction on the button assembly.

[0014] Preferably, the venting device includes a vent plug and a vent sealing ring; the sealing plate has a vent hole; the vent sealing ring is fitted onto the vent plug and positioned below the vent hole; the upper end of the vent plug passes through the vent hole and is connected to the inner plug.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Convenient opening and closing of the lid: It abandons the traditional threaded structure and does not require screwing; the lid can be closed and sealed by simply pressing down on the top cover, and the lid can be quickly reset and removed after pressing the button;

[0017] 2. Excellent sealing performance: When the lid is closed, the upper lid and the inner plug move in opposite directions. The inner plug moves upward and pushes the sealing plate to squeeze the elastic sealing sleeve, causing it to expand and deform outward. This allows it to tightly fit the sealing surface of the inner wall of the cup to form a seal.

[0018] 3. Unrestricted water outlet: Thanks to the excellent sealing mechanism, there is no need to rely on a small water outlet to compensate for insufficient sealing. A larger water outlet can be designed to make it more convenient for users to drink water. It is especially suitable for drinking hot water so that the water level can be clearly seen, effectively avoiding the risk of scalding the mouth.

[0019] 4. Safety Guaranteed: The locking device can block the movement of the button assembly when locked, effectively preventing accidental button pressing from causing the cup lid to open accidentally, thus improving safety;

[0020] 5. Stable and Reliable Structure: The gear and rack transmission design ensures precise, stable, and smooth opposing movement of the upper cover and inner plug, resulting in reliable operation and a longer lifespan (tested to withstand over 10,000 opening and closing operations); the latch and snap-fit ​​mechanism provides mechanical locking when the cover is closed, maintaining a stable seal; the cooperation of the first and second limit hooks prevents the inner shell from accidentally detaching from the lower cover, improving the user experience; the guide plate is confined within the inner plug notch, ensuring directional up-and-down movement of the inner plug and stable operation.

[0021] 6. Smooth opening: By setting up an exhaust device, when opening the lid, the upper cover and the inner plug are first driven to move away from each other. At this time, the inner plug first drives the exhaust device to open the exhaust hole to release air pressure, ensuring the air pressure balance inside and outside the cup. This solves the problem of splashing when opening the lid when the cup is filled with hot water, and significantly improves the safety of use. Attached Figure Description

[0022] Figure 1 This is a three-dimensional exploded view of the cup lid of this utility model.

[0023] Figure 2 This is a cross-sectional view of the structure when the lid is closed.

[0024] Figure 3 This is a cross-sectional view of the structure when the lid is open.

[0025] Figure 4 This is a schematic cross-sectional view of the structure along direction AA when the lid is closed.

[0026] Figure 5 This is a cross-sectional view of the structure along direction AA when the lid is open.

[0027] Figure 6 This is a schematic diagram of the combined structure of the button assembly, the snap-fit, and the elastic element.

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the outer shell.

[0029] Figure 8 This is a schematic diagram of the three-dimensional structure of the inner shell.

[0030] Figure 9 This is a schematic diagram of the three-dimensional structure of the lower cover.

[0031] Figure 10 This is a schematic diagram of the three-dimensional structure of the inner plug.

[0032] Figure 11 This is a 3D structural diagram of the buckle.

[0033] Figure 12 This is a three-dimensional structural diagram of the latch.

[0034] Figure 13 This is a schematic diagram of the three-dimensional structure of the slider. Detailed Implementation

[0035] To make the technical solution of this utility model clearer, the following description is in conjunction with the appendix. Figures 1 to 13 This specification provides a detailed description of the present invention. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the scope of protection of the present invention.

[0036] This utility model is a threadless quick-opening cup lid, which includes at least an upper cover 1, a lower cover 2, an inner plug 3, a sealing plate 4, and a sealing sleeve 5 made of elastic material; wherein the upper cover 1 is movably positioned above the lower cover 2, and the upper cover 1 and the lower cover 2 form an inner cavity, the inner plug 3 is located in the inner cavity and passes through the through hole 21 in the bottom wall of the lower cover 2, and the inner plug 3 and the upper cover 1 move towards each other (i.e., move relative to each other or move away from each other), the sealing plate 4 is connected below the inner plug 3, and the upper and lower ends of the sealing sleeve 5 are respectively connected to the sealing plate 4 and the lower cover 2.

[0037] With the above settings, when the cup lid is placed on the mouth of the cup, the lower cover 2 is limited downward at the end of the cup mouth, pressing down the main body 1, which can drive the inner plug 3 to move upward, and drive the sealing plate 4 to press the sealing sleeve 5 upward, causing it to deform radially outward and abut against the sealing part of the cup mouth to form a water seal; after the upper cover 1 moves upward, it drives the inner plug 3 to move downward, and drives the sealing plate 4 to move downward, and the sealing sleeve 5 is pulled back to its original position (in this process, the sealing sleeve 5, due to its elastic material, has an elastic restoring force after being compressed, and this elastic restoring force can assist in its reset), and the cup lid can be removed from the cup mouth.

[0038] Preferably, the upper cover 1 is also provided with a locking device 6, including a button assembly 61, a latch 62, and an elastic element 63; the button assembly 61 is located on the outer surface of the upper cover 1 and can be pressed and driven, and the latch 62 can be driven by the button assembly 61 and is movably located inside the upper cover 1; the elastic element 63 can provide elastic restoring force for the latch 62; when the upper cover 1 is pressed down, the latch 62 can engage with the inner plug 3, so that the cup lid is closed and seals the mouth of the cup; pressing the button assembly 61 can drive the latch 62 to disengage from the inner plug 3, and a return spring 8 can also be provided between the upper cover 1 and the inner plug 3. At this time, the compressed return spring 8 can drive the upper cover 1 to move upward and reset; when the button assembly 61 is released, the latch 62 resets under the force of the elastic element 63.

[0039] Preferably, the locking device 6 also includes a latch 64 disposed on the outer surface of the upper cover 1, which can move between the locked and unlocked positions; when locked, it can prevent the button assembly 61 from being pressed; when unlocked, it is offset from the button assembly 61 and does not obstruct the button assembly 61.

[0040] Preferably, the device also includes an exhaust device 7, comprising an exhaust plug 71 and an exhaust sealing ring 72; the sealing plate 4 is connected to the inner plug 3 through the exhaust device 7, and the sealing plate 4 is provided with an exhaust hole 41, the exhaust sealing ring 72 is sleeved on the exhaust plug 71 and placed below the exhaust hole 41; the upper end of the exhaust plug 71 passes through the exhaust hole 41 and is connected to the inner plug 3; when the cover is opened, after pressing the button assembly 61 to disengage the buckle 62 from the inner plug 3, the reset spring 8 first drives the upper cover 1 and the inner plug 3 to move away from each other, at which time the inner plug 3 first drives the exhaust device 7 to open the exhaust hole 41 to release pressure, then the lower end of the inner plug 3 abuts against the sealing plate 4 and pushes the sealing plate 4 to move downward to stretch and reset the sealing sleeve 5.

[0041] Specifically, the top cover 1 includes an outer shell 11 and an inner shell 12. The outer shell 11 and the inner shell 12 can be fixedly connected or detachably connected. In this embodiment, a snap-fit ​​connection is used. The outer shell 11 is provided with a hook 111, and the inner shell 12 is provided with a corresponding buckle 121 on its side wall. After the hook 111 and the buckle 121 are engaged, the outer shell 11 and the inner shell 12 are connected together.

[0042] Specifically, the inner shell 12 has symmetrical inner plug notches 122 on both sides of the lower end of the side wall, and guide plates 31 protrude outwards symmetrically on both sides of the inner plug 3. The guide plates 31 are limited to move up and down within the inner plug notches 122, and are also provided with a latch 32. The lower end of the buckle 62 is provided with a buckle 621. The buckle 621 cooperates with the latch 32 to keep the upper cover 1 and the inner plug 3 connected. Pressing the button assembly 61 can disengage the buckle 621 from the latch 32.

[0043] Specifically, the upper sides of the inner shell 12 are symmetrically provided with snap-fit ​​notches 123 corresponding to the inner plug notch 122. The snap-fit ​​62 is symmetrically arranged and slides in and out within the snap-fit ​​notch 123. The inverted buckle 621 is arranged radially outward. The elastic element 63 is a spring located between the two snap-fit ​​62. In this embodiment, the inner shell 12 is provided with a baffle 124 located between the two snap-fit ​​notches 123. The snap-fit ​​spring 65 is located between the snap-fit ​​62 and the baffle 124. When the button assembly 61 is pressed, the two snap-fit ​​62 move radially inward, the elastic element 63 is compressed simultaneously, and the inverted buckle 621 is released from the latch 32.

[0044] Specifically, the lower end of the inner shell 12 is provided with a number of first limiting hooks 125 evenly distributed around its lower circumference, and the lower cover 2 is provided with a corresponding second limiting hook 22. The first limiting hooks 125 and the second limiting hooks 22 work together to prevent the inner shell 12 from separating from the lower cover 2 during the movement.

[0045] Specifically, the button assembly 61 includes a button 611 exposed on the outer surface of the housing 11, and a slider 612 for driving the latch 62 to move and disengage from the inner plug 3, and the slider 612 is restricted to slide within the slider notch 126 on the side wall of the inner housing 12; the button 611 and the slider 612 are snapped together (or they can be integrally formed), one end of the slider 612 is a snap-fit ​​hole for snapping with the button 611, and the other end has four symmetrically provided drive arms 6121 at the four corners, each with a drive ramp on its inner side; the latch 62 has drive protrusions 622 on the upper and lower surfaces of its main body, and the drive protrusions 622 also have drive ramps. When the button assembly 61 is pressed, the drive arms 6121 cooperate with the drive protrusions 622, which causes the latch 62 to move radially inward.

[0046] Specifically, the slider 612 also includes a push rod 6122 and a clearance notch 6123; the latch 64 includes an operating plate 641 exposed on the outer surface of the housing 11, and a limiting buckle 642 connected below the operating plate 641. The top surface of the housing 11 has a movable hole 112, and the latch 64 can move within the movable hole 112 to a locked position and an unlocked position; when in the locked position, the limiting buckle 642 corresponds to the push rod 6122, and the button assembly 61 cannot be pressed; when in the unlocked position, the limiting buckle 642 is offset from the push rod 6122 and corresponds to the clearance notch 6123, and the button assembly 61 can be unlocked. Component 61 can be pressed; in addition to preventing the button component 61 from being pressed inward, the limit buckle 642 also has a reverse buckle, which can prevent the latch 64 from falling out of the movable hole 112. Moreover, the limit buckle 642 adopts a two-spring arm structure, which makes it easier to disassemble and assemble; in addition, the bottom surface of the operating plate 641 can be provided with retaining protrusions 643 on both sides, and the top surface of the housing 11 is provided with retaining recesses 113. In both the locked and unlocked positions, it can be ensured that the retaining protrusions 643 fall into the retaining recesses 113, so that the latch 64 can be kept in the locked or unlocked position.

[0047] Specifically, gears 9 are rotatably connected to the gear brackets 23 symmetrically arranged on both sides of the inner cavity of the lower cover 2. The inner plug 3 and the inner shell 12 are respectively provided with racks 33 that mesh with the gears 9. When the upper cover 1 moves up and down, the inner plug 3 will move in the opposite direction of the upper cover 1 through the gears 9. Moreover, through the transmission of the gears 9, the movement of the upper cover 1 and the inner plug 3 is synchronous and stable.

[0048] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A threadless quick-opening cup lid, characterized in that: The upper cover (1) is movable up and down and is located above the lower cover (2); The inner plug (3) is located in the cavity formed by the upper cover (1) and the lower cover (2), and its lower end passes through the through hole (21) of the bottom wall of the lower cover (2) and is connected to the sealing plate (4). The sealing sleeve (5) is made of elastic material, and its upper and lower ends are connected to the lower cover (2) and the sealing plate (4) respectively; The top cover (1) and the inner plug (3) move toward each other; Press down the top cover (1), the inner plug (3) moves the sealing plate (4) upward, the sealing plate (4) squeezes the sealing sleeve (5) and deforms outward, and is in the closed state; The top cover (1) moves upward, the inner plug (3) moves downward, causing the sealing plate (4) to move, and the sealing plate (4) pulls the sealing sleeve (5) to extend and reset, and is in the open state.

2. The threadless quick-opening cup lid according to claim 1, characterized in that: Gears (9) are rotatably connected to the gear brackets (23) symmetrically arranged on both sides of the inner cavity of the lower cover (2); the upper cover (1) and the inner plug (3) are respectively provided with racks (33) that mesh with the gears (9). The engagement of the gear (9) and rack (33) causes the upper cover (1) and inner plug (3) to move in opposite directions.

3. The threadless quick-opening cup lid according to claim 1, characterized in that: The locking device (6) is provided on the upper cover (1) and includes a button assembly (61), a buckle (62) and an elastic element (63). The buckle (62) is movably located on the upper cover (1) and is used to engage with the inner plug (3); One end of the button assembly (61) is exposed on the outer surface of the top cover (1), and the other end is used to drive the buckle (62) to disengage from the inner plug (3); The elastic element (63) is used to provide elastic restoring force for the buckle (62); When the lid is closed, the buckle (62) and the inner plug (3) are engaged and held in place; After pressing the button assembly (61), the buckle (62) disengages from the inner plug (3), and the top cover (1) and the inner plug (3) can move up and down respectively to reset to the open state.

4. A threadless quick-opening cup lid according to claim 3, characterized in that: The locking device (6) also includes a latch (64) movably disposed on the outer surface of the cover (1), which is movable between the locked and unlocked positions; When locked, the latch (64) can block the movement of the button assembly (61); When in the unlocked position, the latch (64) is offset from the button assembly (61), thus removing the obstruction and restriction on the button assembly (61).

5. A threadless quick-opening cup lid according to claim 4, characterized in that: The top cover (1) includes an outer shell (11) and an inner shell (12); the inner shell (12) is detachably connected to the outer shell (11); the outer shell (11) is provided with a hook (111); the inner shell (12) is provided with a corresponding fastener (121); the hook (111) and the fastener (121) are fastened together; The inner shell (12) has symmetrical inner plug notches (122) on both sides of the lower end of the side wall; The inner plug (3) has guide plates (31) that protrude outwards symmetrically on both sides; The guide plate (31) is limited to move up and down within the inner plug notch (122), and it is also provided with a bayonet (32). The lower end of the buckle (62) is provided with a buckle (621); A return spring (8) is also provided between the inner plug (3) and the inner shell (12); When the lid is closed, the inverted latch (621) engages with the snap-fit ​​(32); When the lid is opened, the top cover (1) and the inner plug (3) move automatically upward and downward respectively under the elastic restoring force of the return spring (8).

6. A threadless quick-opening cup lid according to claim 5, characterized in that: The upper sides of the inner shell (12) are provided with snap-fit ​​notches (123) corresponding to the inner plug notch (122); Two buckles (62) are provided, symmetrically arranged and sliding inside and outside the buckle notch (123); The inverted (621) is set radially outward; The button assembly (61) drives the latch (62) to move radially inward; A baffle (124) is provided on the inner shell (12) between two snap notches (123); The elastic element (63) is a spring and is located between the buckle (62) and the baffle (124) to provide elastic force for the buckle (62) to return to its radially outward position.

7. A threadless quick-opening cup lid according to claim 5, characterized in that: The lower end of the inner shell (12) is uniformly provided with several first limiting hooks (125) in the circumferential direction. The lower cover (2) is provided with a second limiting hook (22); The first limiting hook (125) and the second limiting hook (22) work together to restrict the inner shell (12) from separating from the lower cover (2).

8. A threadless quick-opening cup lid according to claim 6, characterized in that: A button assembly (61) includes a button (611) and a slider (612). The button (611) is exposed on the outer surface of the housing (11); The slider (612) is connected to the button (611) and slides in the slider notch (126) on the side wall of the inner shell (12) to drive the buckle (62). The slider (612) has symmetrical drive arms (6121) at its four corners, and each of them has a drive inclined surface on its inner side; The main body of the buckle (62) is provided with driving protrusions (622) on both the upper and lower surfaces, and the driving protrusions (622) are also provided with driving slopes; Pressing the button assembly (61) causes the drive arm (6121) to engage with the drive ramp of the drive protrusion (622), causing the latch (62) to move radially inward.

9. A threadless quick-opening cup lid according to claim 8, characterized in that: The slider (612) is also provided with a push rod (6122) and a clearance notch (6123). The latch (64) includes an operating plate (641) exposed on the outer surface of the housing (11) and a limiting latch (642) connected below the operating plate (641). The top surface of the outer casing (11) is provided with a movable hole (112), and the latch (64) can move between the locked and unlocked positions within the movable hole (112); When locked, the limit latch (642) corresponds to the push rod (6122) to block and restrict the movement of the button assembly (61); When in the unlocked position, the limit buckle (642) is offset from the top rod (6122) and corresponds to the clearance notch (6123), thus releasing the obstruction of the button assembly (61).

10. A threadless quick-opening cup lid according to claim 1, characterized in that: The exhaust device (7) includes an exhaust plug (71) and an exhaust sealing ring (72); The sealing plate (4) is provided with an exhaust hole (41); The exhaust sealing ring (72) is fitted onto the exhaust plug (71) and positioned below the exhaust hole (41); The upper end of the vent plug (71) passes through the vent hole (41) and is connected to the inner plug (3).

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