Cup lid and water cup

Abstract

The present application provides a cup lid and a water cup. The cup lid includes an outer lid, an inner plug, and a sealing ring sleeved on the inner plug, which are coaxially arranged. An installation hole is provided at the top of the outer lid, and the installation hole axially penetrates the outer lid. A locking button that can move axially is provided in the installation hole. The inner plug is detachably connected to the outer lid. The inner plug includes an annular side wall and a bottom wall. An opening is provided in the annular side wall, and a buckle that can move radially is provided in the opening. The locking button moves axially to push the buckle to move radially until at least part of the buckle passes through the opening and is snap-fitted with the cup body. The cup lid further includes an unlocking button provided on the outer lid, and the unlocking button is used to unlock the locking button so that the buckle is disconnected from the cup body. For the cup lid and the water cup provided by the present application, the user can open the cup lid with one hand operation, improving the convenience of use; and each component of the cup lid is detachable, facilitating cleaning.

Description

Technical Field

[0001] This application relates to the technical field of water cups, and particularly to cup lids and water cups. Background Art

[0002] Most of the existing cup lids of water cups adopt a threaded connection method. Dirt is likely to accumulate at the threaded connection, and it is not easy to operate with one hand. Both hands are required to cooperate to open the cup lid, which is inconvenient to use and not easy to clean. Summary of the Invention

[0003] This application provides a cup lid and a water cup. The user can open the cup lid with one - hand operation, improving the convenience of use; and each component of the cup lid is detachable, facilitating cleaning.

[0004] In the first aspect of the embodiment of this application, a cup lid is provided, which includes an outer lid, an inner plug coaxially arranged, and a sealing ring sleeved on the inner plug; an installation hole is provided at the top of the outer lid, the installation hole axially penetrates the outer lid, and a locking button that can move axially is arranged in the installation hole;

[0005] The inner plug is detachably connected to the outer lid; the inner plug includes an annular side wall and a bottom wall, an opening is provided on the annular side wall, and a buckle that can move radially is arranged in the opening; the locking button moves axially to push the buckle to move radially until at least part of the buckle passes through the opening and is snap - fitted with the cup body;

[0006] The cup lid further includes an unlocking button arranged on the outer lid, and the unlocking button is used to unlock the locking button so that the buckle is disconnected from the cup body.

[0007] In this solution, by pressing the locking button, the locking button moves axially to push the buckle to move radially, so that the buckle is snap - fitted with the cup body; when the cup lid needs to be opened, the user can open the cup lid by pressing the unlocking button with one - hand operation, improving the convenience of use; and each component of the cup lid is detachable, facilitating cleaning.

[0008] In one embodiment, the locking button includes a rod portion, a fixing hole is provided in the rod portion along the radial direction, and the fixing hole is used to accommodate an elastic engaging member; a card slot communicated with the installation hole is further provided at the top of the outer lid, and at least part of the elastic engaging member can be clamped in the card slot.

[0009] In the above solution, by arranging an elastic engaging member on the rod portion of the locking button, at least part of the elastic engaging member is clamped in the card slot of the outer lid, so that the locking button can be locked by the elastic engaging member, enabling the locking button to continuously give a thrust to the buckle, and the buckle remains snap - fitted with the cup body.

[0010] In one embodiment, the locking button further includes an abutting portion and a first elastic member. The abutting portion protrudes along the outer periphery of the rod portion and can abut against the buckle. One end of the first elastic member is connected to the bottom of the rod portion, and the other end abuts against the bottom wall of the inner plug.

[0011] In the above solution, when the user pushes the locking button to move axially along the mounting hole, the first elastic member is in a compressed state. When the thrust applied to the locking button is removed, under the combined action of the unlocking button, the locking button can automatically reset under the action of the first elastic member.

[0012] In one embodiment, the abutting portion is provided with a first inclined surface, and the buckle is provided with a second inclined surface, and the first inclined surface abuts against the second inclined surface.

[0013] In the above solution, through the inclined surface design, the driving force direction of the locking button can be changed, so that the driving force for driving the locking button to move axially can be transmitted to the radially moving buckle through the inclined surface, thereby realizing the snap connection with the cup body through the buckle.

[0014] In one embodiment, the buckle includes a clamping portion and a spring fixing portion. The spring fixing portion is bent and extended from the clamping portion, and a second elastic member arranged radially is sleeved on the spring fixing portion. One end of the second elastic member away from the spring fixing portion abuts against the annular side wall.

[0015] In the above solution, when at least part of the buckle passes through the opening and is snap-connected to the cup body, the second elastic member is in a compressed state; when the locking button moves axially upward, that is, after the force applied to the buckle is removed, the buckle can automatically reset under the elastic deformation force of the second elastic member, driving the buckle to move radially and be received in the mounting cavity, so that the cup lid is unlocked from the cup body, and the user can open the cup lid.

[0016] In one embodiment, the elastic snap member includes two pins and a return spring connecting the two pins. The pins can be clamped in one of the corresponding card slots; when the elastic snap member is received in the fixing hole, the return spring is in a compressed state.

[0017] In the above solution, when the elastic snap member is received in the fixing hole, the return spring is in a compressed state, and the locking button can move axially; when the pins of the elastic snap member are snapped into one of the corresponding card slots, the return spring is in a relaxed state, and the locking button enters the locked state and cannot move axially.

[0018] In one embodiment, an installation groove is formed by radially recessing the outer side wall of the top of the outer cover. The installation groove communicates with the card slot, and the installation groove is used for installing the unlocking button.

[0019] In the above solution, by installing the unlocking button in the installation groove communicating with the card slot, the unlocking button can push the elastic engaging member in the card slot to move radially.

[0020] In one embodiment, the unlocking button includes a button body and a button sleeve sleeved on the button body. The button body is used to push the elastic engaging member out of the card slot, and the button sleeve is snap-connected to the installation groove.

[0021] In the above solution, by sleeving a button sleeve on the button body and snap-connecting the button sleeve in the installation groove, it can effectively prevent the unlocking button from coming out of the installation groove and improve the stability of the overall structure.

[0022] In one embodiment, a positioning member is provided on the bottom wall of the inner plug, and the locking button moves axially along the positioning member.

[0023] In the above solution, by providing the positioning member, the stability of the axial movement of the locking button can be improved.

[0024] In one embodiment, the locking button includes a rod portion, an abutting portion and a first elastic member. The rod portion is provided with a positioning groove, the rod portion is sleeved on the positioning member, and the abutting portion abuts against the buckle; the first elastic member is sleeved on the positioning member and received in the positioning groove.

[0025] In the above solution, the rod portion is sleeved on the positioning member, and the first elastic member is sleeved on the positioning member and received in the positioning groove. When the locking button moves downward, the first elastic member is in a compressed state. When the locking button is unlocked by the unlocking button, under the elastic deformation of the first elastic member, the locking button can move upward and reset along the installation hole, so that the buckle is unlocked from the cup body.

[0026] In one embodiment, a limiting snap ring is provided at the top of the rod portion, and a limiting step is provided at the open end of the installation hole of the outer cover. The limiting snap ring abuts against the limiting step.

[0027] In the above solution, by providing the limiting snap ring, the locking button can be prevented from coming out of the installation hole.

[0028] In one embodiment, the outer cover includes an outer cylinder and an inner cylinder. An annular receiving portion is formed between the outer cylinder and the inner cylinder. The annular receiving portion is used to receive the cup mouth of the cup body; the annular side wall of the inner plug is snap-connected to the inner cylinder.

[0029] In the above solution, the cup mouth of the cup body is received in the annular receiving portion, which can effectively prevent dirt from contaminating the liquid in the cup body. Moreover, the inner plug is snap-connected to the inner cylinder and can be disassembled for easy cleaning.

[0030] In a second aspect, an embodiment of the present application provides a water cup, including a cup lid and a cup body. The cup body includes a cup mouth. The cup lid is the cup lid as described above. A clamping portion is provided along the circumferential direction on the inner wall of the cup body near the cup mouth. The buckle on the cup lid can be clamped and connected to the clamping portion under the push of the locking button.

[0031] By providing a clamping portion on the inner wall of the cup body, the buckle of the cup lid can be clamped and connected to the clamping portion, so that the cup lid can be opened or closed with one - hand operation, which is convenient to operate and simple to use.

[0032] In an embodiment, a water - sealing rib is provided along the circumferential direction on the inner wall of the cup body, and the sealing ring abuts against the water - sealing rib.

[0033] In the above solution, the sealing ring abuts against the water - sealing rib, which can improve the sealing performance of the cup lid.

[0034] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is an overall cross - sectional view of the water cup provided by the embodiment of the present application;

[0036] Figure 2 is an exploded view of the cup lid provided by the embodiment of the present application;

[0037] Figure 3 is an exploded view of the locking button of the cup lid provided by the embodiment of the present application;

[0038] Figure 4 is an exploded view of the inner plug of the cup lid provided by the embodiment of the present application;

[0039] Figure 5 is a schematic structural diagram of another locking button of the cup lid provided by the embodiment of the present application;

[0040] Figure 6 is an exploded view of the outer cover of the cup lid provided by the embodiment of the present application;

[0041] Figure 7 is a cross - sectional view of the cup lid provided by the embodiment of the present application;

[0042] Figure 8 is an exploded cross - sectional view of the water cup provided by the embodiment of the present application;

[0043] Figure 9a is an overall cross - sectional view of the water cup provided by the embodiment of the present application;

[0044] Figure 9bThis is another overall cross-sectional view of the water cup provided by the embodiments of the present application.

[0045] Reference numerals:

[0046] 1 - Water cup;

[0047] 10 - Outer cover; 10a - Outer cylinder; 10b - Inner cylinder; 10c - Annular receiving portion; 11 - Mounting hole;

[0048] 20 - Inner plug; 20a - Mounting cavity; 21 - Annular side wall; 211 - Opening; 22 - Bottom wall;

[0049] 23 - Snap; 231 - Clamping portion; 232 - Spring fixing portion; 233 - Second elastic member; 23a - Second inclined surface;

[0050] 24 - Positioning member; 25 - Engaging groove; 26 - Annular rib;

[0051] 30 - Sealing ring;

[0052] 40 - Locking button; 41 - Rod portion; 411 - Fixing hole; 412 - Positioning groove; 412a - First groove segment; 412b - Second groove segment; 42 - Abutting portion; 421 - First inclined surface; 43 - First elastic member; 44 - Limiting snap ring;

[0053] 50 - Elastic engaging member; 51 - Pin; 52 - Return spring;

[0054] 60 - Unlock button; 61 - Button body; 611 - Pushing portion; 612 - Annular limiting portion; 62 - Button sleeve; 621 - Limiting rib;

[0055] 2 - Cup body; 201 - Cup mouth; 202 - Water - sealing rib; 203 - Engaging portion.

[0056] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Detailed implementation manners

[0057] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] In the description of this specification, unless otherwise clearly specified and defined, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; unless otherwise specified or stated, the term "plurality" means two or more; the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium.

[0059] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In the description of this specification, it should be understood that the orientation terms such as "upper" and "lower" described in the embodiments of this application are described from the angles shown in the drawings and should not be construed as limiting the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0061] In a specific embodiment, the present application will be further described in detail below through specific embodiments in conjunction with the drawings.

[0062] Figure 1 It is a sectional view of the overall structure of a water cup provided for the embodiments of the present application, as Figure 1 shown, the embodiments of the present application provide a water cup, which includes a cup lid 1 and a cup body 2 provided for the embodiments of the present application. The cup lid 1 is installed on the cup body 2 to close the open end of the cup body 2.

[0063] Figure 2 It is an exploded view of a cup lid provided for the embodiments of the present application, as Figure 2 shown, the cup lid 1 includes an outer lid 10, an inner plug 20 arranged coaxially, and a sealing ring 30 sleeved on the inner plug 10.

[0064] An installation hole 11 is provided at the top of the outer lid 10. The installation hole 11 axially penetrates the outer lid 10, and a locking button 40 that can move axially is arranged in the installation hole 11;

[0065] The inner plug 20 is connected to the bottom of the outer lid 10; the inner plug 20 includes an annular side wall 21 and a bottom wall 22. An opening 211 is provided on the annular side wall 21, and a buckle 23 that can move radially is arranged in the opening 211; the locking button 40 moves axially to push the buckle 23 to move radially, so that at least part of the buckle 23 passes through the opening 211 and is snap-fitted with the cup body;

[0066] The cup lid 1 further includes an unlocking button 60 disposed on the outer lid 10, and the unlocking button 60 is used to unlock the locking button 40 so that the buckle 23 is disconnected from the cup body 2.

[0067] In the above solution, by opening an installation hole 11 at the top of the outer lid 10 and installing the locking button 40 in the installation hole 11, the user can press the locking button 40 to move the buckle 23 disposed on the inner plug 20 radially until it is snap-fitted with the cup body 2. The cup lid of the water cup provided in this embodiment does not need to be designed with threads, has a simple overall structure, is snap-fitted with one key, and is convenient for disassembly and cleaning.

[0068] Please continue to refer to Figure 2 and Figure 3 To improve the convenience of using the locking button 40, the locking button 40 includes a rod portion 41, an abutting portion 42 and a first elastic member 43. Specifically, the first elastic member 43 is disposed at the bottom of the rod portion 41, and one end of the first elastic member 43 is connected to the bottom of the rod portion 41, and the other end abuts against the bottom wall 22 of the inner plug 20. It can be understood that when the user pushes the locking button 40 to move axially along the installation hole 11, the first elastic member 43 is in a compressed state. When the thrust applied to the locking button 40 is removed, under the combined action of the unlocking button 60, the locking button 40 can automatically reset under the action of the first elastic member 43.

[0069] Please refer to Figure 3 and Figure 4 An installation cavity 20a is formed by enclosing the annular side wall 21 and the bottom wall 22 of the inner plug 20. The buckle 23 and the locking button 40 are received in the installation cavity 20a. It can be understood that when the inner plug 20 is connected to the outer lid 10, the buckle 23 and the locking button 40 will not fall off from the outer lid 10, and the overall structure is stable.

[0070] The abutting portion 42 can abut against the buckle 23. Specifically, the abutting portion 42 protrudes along the outer circumference of the rod portion 41, and the abutting portion 42 is provided with a first inclined surface 421. Correspondingly, the buckle 23 is provided with a second inclined surface 23a, and the first inclined surface 421 abuts against the second inclined surface 23a so that the locking button 40 can push the buckle 23 to move radially. It can be understood that through the inclined surface design, the driving force direction of the locking button 40 can be changed, so that the driving force for driving the locking button 40 to move downward can be transmitted to the radially moving buckle 23 through the inclined surface, and thus the buckle 23 is used to achieve snap-fitting connection with the cup body 2.

[0071] In a specific embodiment, the first elastic member 43 can be, for example, a compression spring, a spring sheet, etc., and is not limited herein.

[0072] The buckle 23 includes a clamping portion 231 and a spring fixing portion 232. The spring fixing portion 232 is bent and extended from the clamping portion 231. A second elastic member 233 arranged radially is sleeved on the spring fixing portion 232. One end of the second elastic member 233 away from the spring fixing portion 232 abuts against the annular side wall 21. In this embodiment, the second elastic member 233 is a spring. The second elastic member 233 can move radially along with the buckle 23. It can be understood that when the clamping portion 231 of the buckle 23 passes through the opening 211 and is clamped and connected to the cup body 2, the second elastic member 233 is in a compressed state. When the locking button 40 moves axially upward, that is, after the force applied to the buckle 23 is removed, the buckle 23 can automatically reset under the elastic deformation acting force of the second elastic member 233, drive the buckle 23 to move radially and be received in the installation cavity 20a, so that the cup lid 1 and the cup body 2 are unlocked, and the user can open the cup lid 1.

[0073] To improve the stability of the axial movement of the locking button 40, a positioning member 24 is provided on the bottom wall 22 of the inner plug 20, and the locking button 40 moves axially along the positioning member 24.

[0074] Specifically, the rod portion 41 of the locking button 40 is provided with a positioning groove 412. The rod portion 41 of the locking button 40 is sleeved on the positioning member 24, and the first elastic member 43 is sleeved on the positioning member 24 and received in the positioning groove 412.

[0075] It can be understood that when the locking button 40 moves downward along the positioning member 24, the movement path is more stable, and the first elastic member 43 is sleeved on the positioning member 24. During the process of the first elastic member 43 being compressed by force, the first elastic member 43 can also be more stable.

[0076] In this embodiment, the positioning member 24 is a positioning post, and the positioning post is arranged at the center position of the bottom wall 22. The positioning groove 412 includes a first groove section 412a and a second groove section 412b. The groove diameter of the first groove section 412a is larger than that of the second groove section 412b. That is, the groove diameter at the open end of the bottom of the positioning groove 412 is larger, so as to be able to receive the positioning member 24 sleeved with the first elastic member 43. In a preferred implementation manner, the groove diameter of the second groove section 412b is equal to the outer diameter of the positioning member 24.

[0077] In this embodiment, as Figure 3 shown, the positioning groove 412 intersects with the fixing hole 411. In other implementation manners, as Figure 5 shown, the positioning groove 412 is arranged along the axis, the fixing hole 411 is arranged radially, and the two can be arranged independently; the depth of the positioning groove 412 can also match the length of the positioning member 24.

[0078] Please refer to Figure 3 andFigure 6 Figure 6 , in order to prevent the locking button 40 from disengaging from the mounting hole 11, a limiting snap ring 44 is provided at the top of the rod portion 41 of the locking button 40. Correspondingly, a limiting step 12 is provided at the open end of the mounting hole 11 of the outer cover 10, and the limiting snap ring 44 of the locking button 40 can abut against the limiting step 12, thereby preventing the locking button 40 from disengaging from the mounting hole 11 at the top of the outer cover 10. In this embodiment, the aperture of the mounting hole 11 is equal to the outer diameter of the limiting snap ring 44, that is, the limiting snap ring 44 can move axially relative to the rod portion 41 in the mounting hole 11.

[0079] Further, please continue to refer to Figure 3 and Figure 5 Figure 5 , the cup cover further includes an elastic engaging member 50. Wherein, the elastic engaging member 50 is used to lock the locking button 40 to prevent it from moving axially, so that the buckle 23 is kept in snap connection with the cup body 2, and the cup cover 1 and the cup body 2 are in a locked state.

[0080] Specifically, a fixing hole 411 is provided in the rod portion 41 of the locking button 40 along the radial direction, and the elastic engaging member 50 is received in the fixing hole 411. The fixing hole 411 may penetrate the rod portion 41 along the radial direction or may not penetrate the rod portion 41. In this embodiment, the fixing hole 411 penetrates the limiting snap ring 44. In other embodiments, the limiting snap ring 44 and the fixing hole 411 may also be provided independently.

[0081] Correspondingly, a card slot 13 communicating with the mounting hole 11 is further provided at the top of the outer cover 10. When the elastic engaging member 50 moves axially to the card slot 13 along with the locking button 40, at least a part of the elastic engaging member 50 can be clamped in the card slot 13 to lock the locking button 40 and prevent it from moving axially.

[0082] It can be understood that by providing the elastic engaging member 50 in the fixing hole 411 of the rod portion, when the elastic engaging member 50 is clamped in the card slot 13, the locking button 40 will not automatically reset under the action of the first elastic member 43, and the locking button 40 can continuously apply a thrust to the buckle 23, so that the buckle 23 is kept in snap connection with the cup body 2, and the cup cover 1 and the cup body 2 are locked.

[0083] In one embodiment, the elastic engaging member 50 includes two latch pins 51 and a return spring 52 connecting the two latch pins 51. Specifically, both ends of the return spring 52 are sleeved on a corresponding latch pin 51 respectively. On the inner wall of the mounting hole 11 of the outer cover 10, two card slots 13 are symmetrically arranged along the radial direction, and the latch pin 51 can be engaged in a corresponding card slot 13. In this embodiment, when the elastic engaging member 50 is received in the fixing hole 411, the return spring 52 is in a compressed state, and the locking button 40 can move axially; when the latch pin 51 of the elastic engaging member 50 is engaged in a corresponding card slot 13, the return spring 52 is in a relaxed state, the locking button 40 enters the locked state and cannot move axially.

[0084] In other embodiments, the elastic engaging member 50 can also be a card block made of an elastic material, such as a rubber block, a silica gel block, etc. As long as the elastic engaging member 50 can be engaged in the card slot 13 to restrict the axial movement of the locking button 40.

[0085] Furthermore, as Figure 6 shown, the unlocking button 60 is arranged on both sides of the top of the outer cover 10, and the unlocking button 14 is used to push the elastic engaging member 50 so that the elastic engaging member 50 disengages from the card slot 13, and the locking button 40 is released from the locked state. It can be understood that when the elastic engaging member 50 disengages from the card slot 13, the elastic engaging member 50 is received in the fixing hole 411, and under the elastic deformation force of the first elastic member 43 at the bottom of the locking button 40, the elastic engaging member 50 moves upward and resets together with the locking button 40.

[0086] Specifically, on the outer side wall of the top of the outer cover 10, a mounting groove 14 is recessed along the radial direction, and the mounting groove 14 is used to mount the unlocking button 60. In this embodiment, the mounting groove 14 is communicated with the card slot 13.

[0087] The unlocking button 60 includes a button body 61, and the button body 61 is used to push the latch pin 51 of the elastic engaging member 50 to disengage from the card slot 13. The button body 61 can be cylindrical, square, etc., which is not limited herein. One end of the button body 61 can be inserted into the card slot 13 to push the latch pin 51 to reset. In this embodiment, the card slot 13 is a circular groove, and one end of the button body 61 is provided with a cylindrical pushing portion 611, and the diameter of the pushing portion 611 is smaller than the groove diameter of the card slot 13.

[0088] Further, to prevent the unlocking button 60 from disengaging from the installation groove 14, the unlocking button 60 further includes a button sleeve 62 sleeved on the button body 61. The button sleeve 62 is an annular sleeve, and the button body 61 can move along the button sleeve 62 in a direction closer to or farther from the locking button 40. In this embodiment, the installation groove 14 is a circular groove, and the outer diameter of the button sleeve 62 is equal to the groove diameter of the installation groove 14. The button sleeve 62 is snap-fitted with the installation groove 14. Specifically, a limiting rib 621 is provided on the outer periphery of the button sleeve 62. Correspondingly, an annular groove 141 is provided on the groove wall of the installation groove 14. When the button sleeve 62 is inserted into the installation groove 14, under the action of the limiting rib 621, the button sleeve 62 will not disengage from the installation groove 14.

[0089] More specifically, an annular limiting portion 612 is provided on the outer periphery of the button body 61. The outer diameter of the annular limiting portion 612 is greater than the groove diameter of the card slot 13 and greater than the inner diameter of the button sleeve 62. In this way, under the action of the annular limiting portion 612, the button body 61 will not disengage from the installation groove 14 and will not completely enter the card slot 13, that is, only the pushing portion 611 at one end of the button body 61 can enter the card slot 13. In this embodiment, when the elastic engaging member 50 is engaged in the card slot 13, the button body 61 protrudes relative to the side wall of the outer cover 10, thereby facilitating user operation.

[0090] Further, as Figure 7 shown, the outer cover 10 further includes an outer cylinder 10a and an inner cylinder 10b. The inner cylinder 10b is spaced apart from the outer cylinder 10a. Specifically, an annular receiving portion 10c is formed between the outer cylinder 10a and the inner cylinder 10b. The annular receiving portion 10c is used to receive the cup mouth of the cup body 2. When the cup cover is closed with the cup body, the outer cylinder 10a is sleeved outside the cup body 2.

[0091] The annular side wall 21 of the inner plug 20 is snap-fitted with the inner cylinder 10b of the outer cover 10. Specifically, a convex rib 101 is provided on the outer periphery of the inner cylinder 10b, and a snap groove 25 is provided on the annular side wall 21 of the inner plug. The convex rib 101 is engaged in the snap groove 25, so that the inner plug 20 is snap-fitted with the inner cylinder 10b of the outer cover 10. In this embodiment, the snap groove 25 is an annular groove formed on the annular side wall 21 of the inner plug 20. Of course, in other embodiments, the inner plug 20 can also be connected to the outer cover 10 by other connection methods.

[0092] To improve the stability of the sealing ring 30, as Figure 4 shown, an annular clamping rib 26 is formed by extending the bottom wall 22 of the inner plug 20, and the sealing ring 30 is clamped on the annular clamping rib 26.

[0093] In one embodiment, the sealing ring 30 is a silicone sealing ring, which has high temperature resistance and will not contaminate the liquid in the cup body, ensuring drinking safety.

[0094] During assembly, the second elastic member 233 is installed on the spring fixing portion 232 of the buckle 23, and the two buckles with springs installed are inserted into the card holes 211 of the inner plug 20; the elastic engaging member 50 is snap-fitted and received in the fixing hole 411 of the locking button 40; the button card sleeve 62 of the unlocking button 60 is sleeved on one end of the button body 61 away from the pushing portion 611, and then the assembled unlocking button is fixed in the installation groove 14; then, the locking button 40 is passed through the installation hole 11, and the limiting snap ring 44 of the locking button 40 can abut against the limiting step 12 to prevent the locking button 40 from disengaging from the installation hole 11 at the top of the outer cover 10. Then, the first elastic member 43 of the locking button 40 is received in the positioning groove 412, and finally, the inner plug 20 and the inner cylinder 10b of the outer cover 10 are snap-fitted and connected. After installation, the abutting portion 42 of the locking button 40 abuts against the buckle 23 on the circumferential side wall 22 of the inner plug 20. At this time, the first inclined surface 421 of the abutting portion 42 abuts against the second inclined surface 23a of the buckle 23 so that the locking button 40 can push the buckle 23 to move radially.

[0095] The embodiment of the present application also provides a water cup, as Figure 8 shown, including the above-mentioned cup cover 1 and cup body 2. The cup body 2 includes a cup mouth 201, and the inner plug 20 extends into the cup body 2 to form a sealed cavity, preventing the liquid in the cup body 2 from leaking.

[0096] Further, please continue to refer to Figure 1 , a water sealing rib 202 is provided along the circumference on the inner wall of the cup body 2, the sealing ring 30 abuts against the water sealing rib 202, and the sealing ring 30 is closely attached to the inner wall of the cup body 2, thereby realizing the sealing function and preventing water leakage. The cup body 2 is a double-layer heat-insulating structure, including an inner container main body, an outer container main body and a sealed hollow cavity located between the inner container main body and the outer container main body. The sealed hollow cavity can be a vacuum or a heat-insulating filler layer.

[0097] In order to realize the snap-fitting connection between the cup body 2 and the cup cover 1, a snap-fitting portion 203 is further provided along the circumference on the inner wall of the cup body 2 near the cup mouth 201. The buckle 23 on the inner plug 20 of the cup cover 1 can be snap-fitted and connected with the snap-fitting portion 203 under the push of the locking button 40, so that the cup cover 1 and the cup body 2 are snap-fitted and connected.

[0098] As Figure 9aAs shown, when the cup lid 1 is closed on the cup body 2, the inner plug 20 of the cup lid 1 is inserted into the cup mouth 201 of the cup body 2, so that the sealing ring 30 abuts against the water sealing rib 202. Then, the locking button 40 is pressed downward, and the locking button 40 moves downward along the mounting hole 11 until the locking button 40 pushes the buckle 23 to move radially outward, so that the buckle 23 extends out of the card hole 211 and is engaged with the engaging portion 203 of the cup body 2. At this time, the elastic engaging member 50 moves downward axially along with the locking button 40 to the card slot 13, and the pin 51 of the elastic engaging member 50 is engaged in the card slot 13 to lock the locking button 40 to prevent it from moving downward axially, and can continuously provide a thrust to the buckle 23, so that the buckle 23 remains in an engaged connection state with the engaging portion 203 of the cup body 2. When the cup lid 1 is closed on the cup body 2, since the pin 51 of the elastic engaging member 50 is disposed in the card slot 13, the button body 61 of the unlocking button 60 received in the mounting slot 14 protrudes relative to the side wall of the outer lid 10.

[0099] As Figure 9b shown, when it is necessary to open the cup lid 1, the button bodies 61 of the unlocking buttons 60 on both sides of the outer lid 10 are pressed simultaneously, so that the button bodies 61 push the pins 51 to move in the direction close to the locking button 40 until both pins 51 are completely received in the fixing hole 411. Under the elastic deformation action of the first elastic member 43, the elastic engaging member 50 moves upward axially along with the locking button 40, and the abutting portion 42 of the locking button 40 also moves upward. The abutting portion 42 is disconnected from the buckle 23, and the buckle 23 loses the pushing force of the locking button 40 and moves into the installation cavity 20a of the inner plug 20 under the elastic deformation action of the second elastic member 233, so that the buckle 23 is disconnected from the engaging portion 203 of the cup body 2, and the cup lid 1 can be opened from the cup mouth 201, and the user can use the water or other liquids in the cup body.

[0100] For the water cup provided by the present application, the cup lid is detachably connected to the cup body, and each component in the cup lid can be disassembled and cleaned. The cup lid can be opened or closed through the unlocking button and the locking button on the cup lid, which is simple and convenient to use and easy to clean.

[0101] The above are only preferred embodiments of the present application, and the above are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cup lid (1), comprising an outer lid (10), an inner plug (20) arranged coaxially, and a sealing ring (30) sleeved on the inner plug (20); characterized in that: The top of the outer lid (10) is provided with a mounting hole (11), the mounting hole (11) axially penetrates the outer lid (10), and a locking button (40) movable axially is arranged in the mounting hole (11); The inner plug (20) is detachably connected to the outer lid (10); the inner plug (20) comprises an annular side wall (21) and a bottom wall (22), an opening (211) is arranged on the annular side wall (21), and a buckle (23) movable radially is arranged in the opening (211); the locking button (40) moves axially to push the buckle (23) to move radially until at least part of the buckle (23) passes through the opening (211) and is snap-connected with the cup body, so as to cover the cup lid (1); The locking button (40) comprises a rod portion (41), a fixing hole (411) is arranged radially on the rod portion (41), and the fixing hole (411) is used for accommodating an elastic engaging member (50); a card slot (13) communicated with the mounting hole (11) is further arranged at the top of the outer lid (10), and at least part of the elastic engaging member (50) can be clamped in the card slot (13) so that the locking button (40) and the outer lid (10) are locked to each other; The cup lid (1) further comprises an unlocking button (60) arranged on the outer lid (10), and the unlocking button (60) is used for unlocking the locking button (40) and the outer lid (10), so that the buckle (23) is disconnected from the cup body, thereby opening the cup lid (1); The locking button (40) further comprises an abutting portion (42) and a first elastic member (43), the abutting portion (42) protrudes along the outer periphery of the rod portion (41), and the abutting portion (42) can abut against the buckle (23); one end of the first elastic member (43) is connected to the bottom of the rod portion (41), and the other end abuts against the bottom wall (22) of the inner plug (20); An installation groove (14) is recessed radially on the outer side wall of the top of the outer lid (10), the installation groove (14) is communicated with the card slot (13), and the installation groove (14) is used for installing the unlocking button (60).

2. The cup lid according to claim 1, characterized in that, The abutting portion (42) is provided with a first inclined surface (421), and the buckle (23) is provided with a second inclined surface (23a), and the first inclined surface (421) abuts against the second inclined surface (23a).

3. The cup lid according to claim 1, characterized in that, The buckle (23) comprises a clamping portion (231) and a spring fixing portion (232), the spring fixing portion (232) is bent and extended from the clamping portion (231), and a second elastic member (233) arranged radially is sleeved on the spring fixing portion (232), and one end of the second elastic member (233) away from the spring fixing portion (232) abuts against the annular side wall (21).

4. The cup lid according to claim 1, characterized in that, The elastic engaging member (50) includes two latch pins (51) and a return spring (52) connecting the two latch pins (51). The latch pins (51) can be engaged in a corresponding one of the slots (13). When the elastic engaging member (50) is received in the fixing hole (411), the return spring (52) is in a compressed state.

5. The cup lid according to claim 1, characterized in that, The unlocking button (60) includes a button body (61) and a button sleeve (62) sleeved on the button body (61). The button body (61) is used to push the elastic engaging member (50) out of the slot (13), and the button sleeve (62) is engaged with the installation slot (14).

6. The cup lid according to claim 1, characterized in that, A positioning member (24) is provided on the bottom wall (22) of the inner plug (20), and the locking button (40) moves axially along the positioning member (24).

7. The cup lid according to claim 6, characterized in that, The locking button (40) includes a rod portion (41), an abutting portion (42) and a first elastic member (43). The rod portion (41) is provided with a positioning groove (412). The rod portion (41) is sleeved on the positioning member (24), and the abutting portion (42) abuts against the buckle (23). The first elastic member (43) is sleeved on the positioning member (24) and received in the positioning groove (412).

8. The cup lid according to claim 1 or 7, characterized in that, A limiting snap ring (44) is provided at the top of the rod portion (41), and a limiting step (12) is provided at the open end of the installation hole (11) of the outer cover (10). The limiting snap ring (44) abuts against the limiting step (12).

9. The cup lid according to claim 1, characterized in that The outer cover (10) includes an outer cylinder (10a) and an inner cylinder (10b). An annular receiving portion (10c) is formed between the outer cylinder (10a) and the inner cylinder (10b), and the annular receiving portion (10c) is used to receive the cup mouth of the cup body. The annular side wall (21) of the inner plug (20) is engaged with the inner cylinder (10b).

10. A water cup, comprising a cup lid and a cup body, wherein the cup body (2) includes a cup mouth (201), characterized in that, The cup cover is the cup cover (1) according to any one of claims 1 to 9. A engaging portion (203) is provided along the circumference on the inner wall of the cup body (2) near the cup mouth (201). The buckle (23) on the cup cover (1) can be engaged with the engaging portion (203) under the push of the locking button (40).

11. The water cup according to claim 10, characterized in that, A water sealing rib (202) is provided along the circumference on the inner wall of the cup body (2), and the sealing ring (30) abuts against the water sealing rib (202).

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