Cup cover and water cup

Abstract

The utility model provides a cup cover and a water cup, and the cup cover comprises a cover body which comprises a side part and a top part which are connected with each other, and the side part surrounds the edge of the top part and extends along the axial direction of the cover body; the elastic buckle is arranged on the side part and can stretch out and draw back in the radial direction of the cover body, and one part of the elastic buckle can stretch out of the side part; the driving piece is arranged on the top and can move in the axial direction of the cover body; the driving part is matched with the elastic buckle so that axial movement of the driving part can be converted into radial stretching and retracting of the elastic buckle. The cover opening operation of the cup cover can be simplified, and the use experience of the water cup is improved.

Description

Technical Field

[0001] The present application relates to the technical field of daily necessities, and in particular to a cup cover and a water cup. Background Art

[0002] A water cup generally includes a cup body and a cup cover, and the cup cover is generally connected to the opening of the cup body by a threaded manner to close the opening of the cup body. This connection method requires the user to hold the cup body and the cup cover with both hands respectively and screw them together to close and open the cup cover, which is inconvenient to operate and affects the user experience. Utility Model Content

[0003] The present application provides a cup cover and a water cup to simplify the opening operation of the cup cover and improve the user experience of the water cup.

[0004] The first aspect of the present application provides a cup cover, which includes:

[0005] A cover body, comprising a side portion and a top portion connected to each other, wherein the side portion surrounds an edge of the top portion and extends along the axial direction of the cover body;

[0006] An elastic buckle, which is arranged on the side portion and can be extended and retracted along the radial direction of the cover body, and a part of the elastic buckle can extend out of the side portion;

[0007] A driving member, disposed on the top and capable of moving along the axial direction of the cover body;

[0008] The driving member cooperates with the elastic buckle to convert the axial movement of the driving member into the radial expansion and contraction of the elastic buckle.

[0009] The cup cover provided by the present application includes a cover body, an elastic buckle and a driving member; the cover body includes a side portion and a top portion connected to each other, the side portion surrounds the edge of the top portion and extends along the axial direction of the cover body, and is used to connect the side wall of the cup body; the elastic buckle is arranged on the side portion, and can be radially extended and retracted along the cover body, and a part of the elastic buckle can extend out of the side portion, thereby fixing the cup cover to the cup body; the driving member is arranged on the top portion, and can move along the axial direction of the cover body; the driving member and the elastic buckle cooperate with each other to convert the axial movement of the driving member into the radial expansion and contraction of the buckle, that is, the user only needs to apply external force to the driving member to make the driving member move along the axial direction of the cover body, and the cup cover can be opened, and the cover opening operation is convenient, which improves the user experience. In addition, the present application arranges the elastic buckle and the driving member at two positions of the cover body respectively, that is, the elastic buckle is arranged on the side portion, and the cover body is arranged on the top portion, which makes full use of the narrow space of the cover body itself, can retain the original structure of the cover body to the maximum extent, reduce the overall volume of the cup cover, and increase the effective volume of the water cup.

[0010] Optionally, the elastic buckle includes a buckle, the buckle extends along the circumference of the cover, and the two ends of the buckle are respectively provided with a first guide portion; the driving member cooperates with the first guide portion to convert the axial movement of the driving member into the radial expansion and contraction of the elastic buckle. The two ends of the buckle cooperate with the driving member respectively, and the two ends of the buckle are subjected to force at the same time, so as to prevent the buckle from swinging or getting stuck, resulting in incomplete separation of the buckle from the cup body, thereby affecting the normal opening of the cup cover.

[0011] Optionally, the side portion includes: an inner ring connected to the top; an outer ring sleeved on the outside of the inner ring, an annular cavity formed between the outer ring and the inner ring, and at least a part of the elastic buckle is accommodated in the annular cavity. The inner ring is provided to ensure the reliability of the cup cover connection, and the outer ring is provided and the annular cavity is formed between the outer ring and the inner ring to increase the movement range of the elastic buckle.

[0012] Optionally, the height of the outer ring is smaller than that of the inner ring, and the elastic buckle is arranged within the height range of the outer ring. Local thickening or reinforcement is performed only within the height interval where the elastic buckle is located, without the need for overall thickening and reinforcement of the side part. This can not only meet the movement stroke requirements of the elastic buckle, but also keep the overall cup cover as light as possible, thereby improving the user experience.

[0013] Optionally, the driving member includes: a pressing portion, stacked on the top; an extending portion, connected to the edge of the pressing portion and extending axially along the cover body, the extending portion cooperates with the elastic clip to convert the axial movement of the driving member into radial expansion and contraction of the elastic clip, and the extending portion and the side portion fit each other, which can enable the side portion to provide radial support for the extending portion, increase the structural strength of the extending portion, and prevent the extending portion from being damaged by bending, deformation, or breakage, and can also increase the stability of the extending portion, prevent the extending portion from shaking and affecting the expansion and contraction effect of the elastic clip.

[0014] Optionally, a second guide portion is provided at one end of the extension portion away from the pressing portion, and the second guide portion is located on the side of the extension portion away from the axis of the cover body. The second guide portion cooperates with the elastic clip to convert the axial movement of the driving member into radial expansion and contraction of the elastic clip, so that the side portion can form a radial supporting force and driving force together with the second guide portion, ensuring that the elastic clip can expand and contract normally.

[0015] Optionally, the side portion is provided with a guide groove, the guide groove extends along the axial direction of the cover body, and at least a part of the extension portion is accommodated in the guide groove and can slide along the guide groove. On the one hand, it can increase the fitting area between the extension portion and the side portion, so that the side portion can provide radial support and circumferential support to the extension portion at the same time, effectively preventing the extension portion from bending, breaking or shaking; on the other hand, it can form a circumferential limit on the driving member to prevent the driving member from rotating, ensuring that the second guide portion corresponds to the first guide portion.

[0016] Optionally, the cup cover further comprises a first sealing ring, one end of the first sealing ring along the axial direction of the cover body abuts against the top, and the other end of the first sealing ring along the axial direction of the cover body forms a sealing portion, which can abut against the top end of the cup body to form an end face seal. Thus, the extrusion deformation direction of the first sealing ring is parallel to the installation and removal direction of the cup cover, which can improve the sealing performance of the cup cover during installation and make the removal of the cup cover more convenient and labor-saving.

[0017] Optionally, the first sealing ring is provided with two annular abutting parts on one side facing the top, the two abutting parts are sealed and connected to form an annular spacing groove, and the abutting parts fit with the top. The elastic deformation range of the first sealing ring can be increased by setting the spacing groove, so that the first sealing ring can form a sealing fit with the cup body in a larger axial range, that is, even if there is a certain looseness at the fitting point between the elastic buckle and the cup body, resulting in the axial floating of the cup cover along the cup body, there will be no leakage of liquid in the cup; the ground connection part fits with the top, so that a sealed space is formed in the spacing groove, and as the first sealing ring is compressed, the volume of the sealed space is reduced, and the gas in the sealed space is compressed, so that a certain rebound force can be generated, that is, the first sealing ring and the compressed gas jointly provide an upward elastic force to the cup cover, making the removal of the cup cover more convenient and labor-saving.

[0018] Optionally, along the direction away from the sealing portion, at least one section of the abutting portion has a concave-convex structure, and the concave-convex structure is radially convex or concave along the cover body, thereby guiding the deformation of the abutting portion, allowing the abutting portion to deform regularly, thereby improving the sealing performance of the first sealing ring.

[0019] Optionally, the top is provided with an exhaust hole, and a second sealing ring is installed in the exhaust hole; the driving member further comprises an exhaust rod facing the second sealing ring, and the exhaust rod cooperates with the second sealing ring to open or close the exhaust hole. When the user applies external force to the driving member and the driving member moves along the axial direction of the cover body, a gap is formed between the exhaust rod and the second sealing ring, and the exhaust hole is opened, thereby avoiding the formation of a negative pressure state in the cup body, making it easier to open the cup cover.

[0020] A second aspect of the present application provides a water cup, comprising a cup body and any one of the cup covers provided in the present application, wherein the side wall of the cup body is provided with an annular stopper;

[0021] The side portion surrounds the side wall of the cup body, and the elastic buckle and the annular stopper are buckled and connected with each other.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a water cup provided in an embodiment of the present application in a natural state;

[0024] Figure 2 A schematic diagram of the structure of a water cup provided in an embodiment of the present application when a driving member is under stress;

[0025] Figure 3 A schematic diagram of the exploded structure of a cup cover provided in an embodiment of the present application;

[0026] Figure 4 A schematic cross-sectional view of a portion of the structure of a cup cover provided in an embodiment of the present application;

[0027] Figure 5 for Figure 4 A partial enlarged view of

[0028] Figure 6 for Figure 4 A schematic diagram of the three-dimensional structure of the middle cover body;

[0029] Figure 7 for Figure 4 Schematic diagram of the three-dimensional structure.

[0030] Reference numerals:

[0031] 01-cup lid;

[0032] 02-cup body;

[0033] 021- stopper;

[0034] 1-cover body;

[0035] 11 - lateral part;

[0036] 111-inner ring;

[0037] 112-outer ring;

[0038] 113-guide groove;

[0039] 114- Strengthening Department;

[0040] 115-mounting hole;

[0041] 116- baffle;

[0042] 12-top;

[0043] 121- second rib;

[0044] 122-exhaust hole;

[0045] 2-Elastic buckle;

[0046] 2a-first guide portion;

[0047] 21- fastener;

[0048] 22- elastic member;

[0049] 3- driving member;

[0050] 3a- second guide portion;

[0051] 31-pressing part;

[0052] 311- first rib;

[0053] 32- extension;

[0054] 33-exhaust rod;

[0055] 4- first sealing ring;

[0056] 41- sealing part;

[0057] 42-butt part;

[0058] 421-concave-convex structure;

[0059] 43- spacing groove;

[0060] 5-Reset piece;

[0061] 6-Fixing ring;

[0062] 7-outer cover;

[0063] 8- Second sealing ring.

[0064] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with 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.

[0066] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0067] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0068] like Figure 1-Figure 7As shown, an embodiment of the present application provides a cup cover 01, which can be connected to a cup body 02 and close the opening of the cup body 02, so that the cup cover 01 and the cup body 02 together form a water cup capable of holding liquid, and the cup cover 01 includes a cover body 1, an elastic buckle 2 and a driving member 3. The cover body 1 includes a side portion 11 and a top portion 12 that are connected to each other, the top portion 12 closes the opening of the cup body 02, the side portion 11 surrounds the edge of the top portion 12 and extends along the axial direction of the cover body 1, and is used to connect the side wall of the cup body 02; the elastic buckle 2 is arranged on the side portion 11, and can be extended and retracted along the radial direction of the cover body 1, a part of the elastic buckle 2 can extend out of the side portion 11 and be buckled to the cup body 02, thereby fixing the cup cover 01 to the cup body 02, the extension direction of the elastic buckle 2 is perpendicular to the force direction, so that the connection reliability can be improved; the driving member 3 is arranged on the top portion 12, and is used to control The elastic buckle 2 is controlled to expand and contract, and the driving member 3 can move along the axial direction of the cover body 1. The movement direction of the driving member 3 is perpendicular to the direction of the holding force, which can prevent the user from misoperating when holding the water cup, causing the cup cover 01 to open accidentally; the driving member 3 and the elastic buckle 2 cooperate with each other to convert the axial movement of the driving member 3 into the radial expansion and contraction of the elastic buckle 2. In other words, as long as the user applies external force to the driving member 3 (for example, pressing the driving member 3, etc.) to make the driving member 3 move along the axial direction of the cover body 1, the cup cover 01 can be opened, and the cover opening operation is convenient, which improves the user experience. In addition, the embodiment of the present application respectively arranges the elastic buckle 2 and the driving member 3 at two positions of the cover body 1, that is, the elastic buckle 2 is arranged on the side 11, and the cover body 1 is arranged on the top 12, which makes full use of the narrow space of the cover body 1 itself, can retain the original structure of the cover body 1 to the maximum extent, reduces the overall volume of the cup cover 01, and increases the effective volume of the water cup.

[0069] Specifically, under natural conditions (ref. Figure 1 ), a part of the elastic buckle 2 extends out of the side portion 11, so that the cup cover 01 and the cup body 02 can be buckled with each other. At this time, the cup cover 01 and the cup body 02 cannot be disassembled and separated from each other; when the user presses the driving member 3 (refer to Figure 2 ), the elastic buckle 2 is retracted to the side portion 11, so that the elastic buckle 2 is disengaged from the cup body 02, and at this time, the cup cover 01 and the cup body 02 can be separated from each other and disassembled. There are multiple elastic buckles 2, and each elastic buckle 2 is spaced around the axis of the cover body 1 to increase the reliability and stability of the cup cover 01.

[0070] Furthermore, the cup cover 01 provided in the embodiment of the present application further includes a reset member 5, which can be any appropriate component such as a spring, and is located between the driving member 3 and the top 12, with the two ends of the reset member 5 elastically abutting against the driving member 3 and the top 12 respectively. When the user releases the driving member 3, the driving member 3 can automatically bounce upward and reset under the action of the reset member 5, making the operation more convenient. It can be understood that the manual reset of the driving member 3 can also be achieved by manually lifting it.

[0071] Furthermore, the cup cover 01 may also include a clamping ring 6, which is detachably connected to the top 12. For example, the clamping ring 6 may be connected to the top 12 by snap fit or thread fit; the clamping ring 6 stops at the side of the driver 3 away from the top 12, so that the driver 3 is sandwiched between the top 12 and the clamping ring 6 to prevent the driver 3 from falling off the top 12; a portion of the driver 3 is exposed to the inner ring of the clamping ring 6, thereby forming a pressing operation area for the user. It is understandable that the cup cover 01 may not be provided with a clamping ring 6, and the driver 3 is directly connected to the cover body 1 by snap fit.

[0072] Furthermore, the cup cover 01 may also include an outer cover 7, which is arranged on the outside of the cover body 1, so that the cup cover 01 forms a neat and smooth external shape, improving the integrity and appearance of the cup cover 01. A portion of the outer cover 7 can extend below the clamping ring 6, so that the outer cover 7 and the driving member 3 are clamped between the top 12 and the clamping ring 6, and the outer cover 7 and the driving member 3 are connected to the cover body 1 at the same time through a clamping ring 6, which has a simple structure and reliable connection. It can be understood that the outer cover 7 can also be fixedly connected to the cover body 1 by bonding, snapping or threading.

[0073] Furthermore, the space enclosed by the side portion 11 and the top portion 12 is a mounting cavity, and the mounting cavity is used to mount the cup body 02. That is, the open end of the cup body 02 extends into the mounting cavity, so that the side portion 11 surrounds the outside of the cup body 02, and the end of the elastic buckle 2 close to the axis of the cover body 1 can extend out of the side portion 11 and enter the mounting cavity to be locked with the cup body 02. On the one hand, the exposed part of the elastic buckle 2 extending out of the side portion 11 is located in the mounting cavity, so that the side portion 11 protects the elastic buckle 2 and prevents the elastic buckle 2 from being broken or damaged due to external forces such as bumps; on the other hand, the elastic buckle 2 is located on the outside of the cup body 02, which can prevent the elastic buckle 2 from contacting the liquid or gas in the cup body 02, thereby improving the cleanliness and hygiene of the water cup.

[0074] like Figure 1-Figure 5 As shown, the cup cover 01 also includes a first sealing ring 4, which is located in the installation cavity surrounded by the side portion 11 and the top portion 12. The first sealing ring 4 cooperates with the cup body 02 to achieve a sealed connection between the cup cover 01 and the cup body 02.

[0075] Furthermore, one end of the first sealing ring 4 along the axial direction of the cover body 1 abuts against the top 12, and the other end of the first sealing ring 4 along the axial direction of the cover body 1 forms a sealing portion 41, which can abut against the top of the cup body 02 and form an end face seal. Thus, the extrusion deformation direction of the first sealing ring 4 is parallel to the installation and removal direction of the cup cover 01, which can not only improve the sealing performance of the cup cover 01 during installation, but also make the removal of the cup cover 01 more convenient and labor-saving. Specifically, when installing the cup cover 01, the cup cover 01 moves in the direction close to the cup body 02, and the cup cover 01 squeezes the first sealing ring 4, so that the first sealing ring 4 is fully compressed to achieve reliable sealing; when removing the cup cover 01, the first sealing ring 4 provides an upward elastic force to the cup cover 01, making the removal of the cup cover 01 more convenient and labor-saving. In addition, the sealing position is located at the top of the cup body 02, which can make full use of the height space of the cup body 02 and improve the space utilization rate of the water cup.

[0076] Furthermore, the first sealing ring 4 is provided with two annular abutting portions 42 on one side facing the top 12, and the abutting portions 42 are integrally formed with the sealing portion 41. The two annular abutting portions 42 are sealed and connected to form an annular spacing groove 43, so as to increase the elastic deformation range of the first sealing ring 4, so that the first sealing ring 4 can form a sealing fit with the cup body 02 in a larger axial range, that is, even if there is a certain looseness at the fitting point between the elastic buckle 2 and the cup body 02, resulting in the axial floating of the cup cover 01 along the cup body 02, there will be no leakage of liquid in the cup. In addition, since the abutting portions 42 and the top 12 fit each other, a sealed space is formed in the spacing groove 43. With the compression of the first sealing ring 4, the volume of the sealed space is reduced, and the gas in the sealed space is compressed, so that a certain rebound force can be generated. That is to say, the first sealing ring 4 and the compressed gas jointly provide an upward elastic force to the cup cover 01, making the disassembly of the cup cover 01 more convenient and labor-saving.

[0077] Furthermore, along the direction away from the sealing portion 41, the abutting portion 42 has at least one section that is a concave-convex structure 421, and the concave-convex structure 421 is convex or concave along the radial direction of the cover body 1. For example, the abutting portion 42 is convex in the middle toward the side where the spacing groove 43 is located, and the concave-convex structure 421 plays a role similar to a crease, thereby guiding the deformation of the abutting portion 42, so that the abutting portion 42 can undergo regular deformation, which can not only increase the rebound force of the abutting portion 42, but also improve the sealing performance of the first sealing ring 4.

[0078] like Figure 3 and Figure 4 As shown, the elastic buckle 2 includes a buckle member 21 and an elastic member 22. The buckle member 21 is a rigid member, and a portion of the buckle member 21 extends out of the side portion 11 to ensure the reliability of the buckle connection; the elastic member 22 is a flexible member, for example, the elastic member 22 can be a spring, a reed or rubber, etc., to meet the expansion and contraction requirements of the elastic buckle 2.

[0079] Furthermore, the buckle 21 extends along the circumference of the cover body 1, and the two ends of the buckle 21 (the two ends along the circumference of the cover body 1) are respectively provided with a first guide portion 2a, which is an inclined surface or an arc surface to convert the axial movement into the radial movement; the driving member 3 cooperates with the first guide portion 2a to convert the axial movement of the driving member 3 into the radial expansion and contraction of the elastic buckle 2. Since the two ends of the buckle 21 cooperate with the driving member 3 respectively, the two ends of the buckle 21 are subjected to force at the same time, thereby preventing the buckle 21 from swinging or getting stuck, etc., resulting in incomplete separation of the buckle 21 from the cup body 02, which affects the normal opening of the cup cover 01.

[0080] like Figure 4 , Figure 6 and Figure 7 As shown, the side portion 11 is provided with a mounting hole 115, and the mounting hole 115 extends radially along the cover body 1. The elastic buckle 2 is accommodated in the mounting hole 115 and fits with the hole wall of the mounting hole 115. The mounting hole 115 supports and limits the elastic buckle 2, which can increase the stability of the elastic buckle 2 and reduce possible shaking or swinging of the elastic buckle 2, thereby ensuring a reliable connection between the cup cover 01 and the cup body 02.

[0081] Furthermore, one end of the mounting hole 115 close to the axis of the cover body 1 is an outlet with a smaller aperture, and the elastic buckle 2 extends out of the side portion 11 from the outlet; one end of the mounting hole 115 away from the axis of the cover body 1 is a mounting opening with a larger aperture, and the elastic buckle 2 is installed into the mounting hole 115 from the mounting opening; the mounting opening is connected to a detachable baffle 116, for example, the baffle 116 can be plugged into the side portion 11 or buckled to the side portion 11 to open or close the mounting opening. When the mounting opening is opened, the elastic buckle 2 can be installed and removed; when the mounting opening is closed, the elastic buckle 2 can stay stably in the mounting hole 115.

[0082] Furthermore, the side portion 11 includes an inner ring 111 and an outer ring 112. The inner ring 111 is connected to the top 12, and a mounting cavity is formed between the inner ring 111 and the top 12, that is, the inner ring 111 is used to connect the cup body 02 to ensure the reliability of the connection of the cup cover 01; the outer ring 112 is sleeved on the outside of the inner ring 111, and an annular cavity is formed between the outer ring 112 and the inner ring 111, and at least a part of the elastic buckle 2 is accommodated in the annular cavity and can slide along the radial direction of the annular cavity to increase the movement stroke of the elastic buckle 2.

[0083] Furthermore, the outer ring 112 and the inner ring 111 are basically aligned with each other at the end away from the top 12, the height of the outer ring 112 is smaller than the height of the inner ring 111, and the elastic buckle 2 is arranged within the height range of the outer ring 112. That is to say, only local thickening or reinforcement is performed within the height range where the elastic buckle 2 is located, and there is no need to thicken and strengthen the side part 11 as a whole. This can not only meet the movement stroke requirements of the elastic buckle 2, but also keep the cup cover 01 as light as possible as a whole, thereby improving the user experience.

[0084] Furthermore, the outer ring 112 and the inner ring 111 are connected to each other at the bottom. For example, the outer ring 112 and the inner ring 111 are connected to each other at the bottom through a flange structure, so that the lower end of the cover body 1 forms a continuous and neat outer contour, which improves the overall appearance of the cup cover 01, and can also avoid the accumulation of dirt at the lower end of the cover body 1, thereby improving the cleanliness of the cup cover 01.

[0085] Furthermore, the outer ring 112 and the inner ring 111 are connected to each other in the annular cavity. For example, a reinforcing portion 114 is provided in the annular cavity. The reinforcing portion 114 extends along the radial direction of the cover body 1 and connects the inner ring 111 and the outer ring 112, so that the inner ring 111 and the outer ring 112 form a mutual support and reinforcement effect to prevent the inner ring 111 or the outer ring 112 from deformation or other damage.

[0086] Furthermore, the driving member 3 includes a pressing portion 31 and an extending portion 32. The pressing portion 31 is in a disc shape, and is stacked on the top 12 to facilitate the user to apply external force, and the pressing portion 31 can move along the axis of the cover body 1 in the direction of approaching and moving away from the top 12. The extending portion 32 is in a strip shape, and is connected to the edge of the pressing portion 31 and extends along the axial direction of the cover body 1, so that a part of the driving member 3 surrounds the side portion 11, increasing the contact area between the driving member 3 and the cover body 1, thereby increasing the reliability of the connection of the driving member 3 and the stability of the action.

[0087] Furthermore, the extension portion 32 cooperates with the elastic buckle 2 (for example, the first guide portion 2a of the elastic buckle 2) to convert the axial movement of the driving member 3 into radial expansion and contraction of the elastic buckle 2. The extension portion 32 fits with the side portion 11, which can enable the side portion 11 to provide radial support for the extension portion 32, increase the structural strength of the extension portion 32, and prevent the extension portion 32 from being damaged by bending, deformation, or breakage, and can also increase the stability of the extension portion 32 to prevent the extension portion 32 from shaking and affecting the expansion and contraction effect of the elastic buckle 2.

[0088] Furthermore, a second guide portion 3a is provided at one end of the extension portion 32 away from the pressing portion 31, and the second guide portion 3a is an inclined surface or an arc surface to convert axial movement into radial movement; the second guide portion 3a cooperates with the elastic buckle 2 to convert the axial movement of the driving member 3 into radial expansion and contraction of the elastic buckle 2.

[0089] Further, the second guide portion 3a is located on the side of the extension portion 32 away from the axis of the cover body 1, and the extension portion 32 is sandwiched between the side portion 11 and the first guide portion 2a. For example, the side of the extension portion 32 close to the axis of the cover body 1 is in contact with the side portion 11; the first guide portion 2a is located on the side of the extension portion 32 away from the axis of the cover body 1, and the second guide portion 3a is in contact with the first guide portion 2a. Thus, the side portion 11 and the second guide portion 3a can jointly form a radial support force and a driving force to ensure that the elastic buckle 2 can be normally extended and retracted.

[0090] Furthermore, the side portion 11 is provided with a guide groove 113, which extends along the axial direction of the cover body 1, and at least a part of the extension portion 32 is accommodated in the guide groove 113 and can slide along the guide groove 113. On the one hand, the contact area between the extension portion 32 and the side portion 11 can be increased, so that the side portion 11 can provide radial support and circumferential support to the extension portion 32 at the same time, effectively preventing the extension portion 32 from bending, breaking or shaking; on the other hand, it can form a circumferential limit for the driving member 3 to prevent the driving member 3 from rotating, ensuring that the second guide portion 3a corresponds to the first guide portion 2a.

[0091] Furthermore, a first rib 311 is convexly provided on the outer periphery of the pressing portion 31, and the first rib 311 forms a cantilever structure at the edge of the pressing portion 31. The extension portion 32 is connected to one end of the first rib 311 away from the axis of the cover body 1, and the first rib 311 plays a role in stress release and buffering, preventing stress concentration between the extension portion 32 and the pressing portion 31, and extending the service life of the cup cover 01.

[0092] Furthermore, a second rib 121 is convexly provided above the top 12, and the second rib 121 is clamped on both sides of the first rib 311. When the driving member 3 moves along the axial direction of the cover body 1, the first rib 311 slides up and down between the second ribs 121. In other words, by providing the second rib 121 on the top 12 to increase the local height, the movement stroke requirements of the driving member 3 are met, instead of increasing the overall thickness of the top 12, thereby reducing the overall weight of the cup cover 01 and improving the user experience. In addition, the second rib 121 has a circumferential limiting effect on the first rib 311, which can prevent the driving member 3 from rotating, thereby avoiding the circumferential force on the extension portion 32, and effectively reducing the risk of fatigue or fracture of the extension portion 32.

[0093] Furthermore, the groove wall of the guide groove 113 and the inner side wall of the second rib 121 (the side of the second rib 121 close to the first rib 311) are connected to form a plane, so that the guide groove 113 and the second rib 121 together form a continuous and reliable circumferential limit at the edge of the pressing portion 31, so that the force of the extension portion 32 and the first rib 311 can be shared with each other, effectively reducing the risk of damage to the extension portion 32 or the first rib 311. Of course, in other embodiments, the groove wall of the guide groove 113 and the inner side wall of the second rib 121 can also be spaced apart from each other, or connected to each other to form a stepped surface.

[0094] Furthermore, the top 12 is provided with an exhaust hole 122, and the exhaust hole 122 is installed with a second sealing ring 8. The driving member 3 also includes an exhaust rod 33 facing the second sealing ring 8, and the exhaust rod 33 cooperates with the second sealing ring 8 to open or close the exhaust hole 122. Specifically, in a natural state, the exhaust rod 33 forms a sealing fit with the second sealing ring 8, and the exhaust hole 122 is closed; when the user applies an external force to the driving member 3 and the driving member 3 moves along the axial direction of the cover body 1, a gap is formed between the exhaust rod 33 and the second sealing ring 8, and the exhaust hole 122 is opened, thereby avoiding the formation of a negative pressure state in the cup body 02, making the opening of the cup cover 01 more labor-saving.

[0095] In addition, the embodiment of the present application further provides a water cup, which includes a cup body 02 and any cup cover 01 provided in the embodiment of the present application. The side wall of the cup body 02 is provided with an annular stopper 021; the side portion 11 surrounds the side wall of the cup body 02, the elastic buckle 2 cooperates with the annular stopper 021, and the top 12 closes the opening of the cup body 02.

[0096] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. 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 cover, characterized in that: include: A cover body (1) comprises a side portion (11) and a top portion (12) connected to each other, wherein the side portion (11) surrounds the edge of the top portion (12) and extends along the axial direction of the cover body (1); An elastic buckle (2) is arranged on the side portion (11) and is capable of extending and retracting in the radial direction of the cover body (1), and a part of the elastic buckle (2) is capable of extending out of the side portion (11); A driving member (3) is arranged on the top (12) and is capable of moving along the axial direction of the cover body (1); The driving member (3) cooperates with the elastic buckle (2) to convert the axial movement of the driving member (3) into radial expansion and contraction of the elastic buckle (2).

2. The cup cover according to claim 1, characterized in that: The elastic buckle (2) comprises a buckle part (21), the buckle part (21) extends along the circumference of the cover body (1), and first guide parts (2a) are respectively protruded from both ends of the buckle part (21); The driving member (3) cooperates with the first guide portion (2a) to convert the axial movement of the driving member (3) into radial expansion and contraction of the elastic buckle (2).

3. The cup cover according to claim 1, characterized in that: The side portion (11) comprises: An inner ring (111) connected to the top (12); The outer ring (112) is sleeved on the outside of the inner ring (111), an annular cavity is formed between the outer ring (112) and the inner ring (111), and at least a part of the elastic buckle (2) is accommodated in the annular cavity.

4. The cup cover according to claim 3, characterized in that: The height of the outer ring (112) is smaller than the height of the inner ring (111), and the elastic buckle (2) is arranged within the height range of the outer ring (112).

5. The cup cover according to claim 1, characterized in that: The driving member (3) comprises: A pressing portion (31) stacked on the top portion (12); The extension portion (32) is connected to the edge of the pressing portion (31) and extends along the axial direction of the cover body (1). The extension portion (32) cooperates with the elastic buckle (2) to convert the axial movement of the driving member (3) into the radial expansion and contraction of the elastic buckle (2). The extension portion (32) and the side portion (11) are in contact with each other.

6. The cup cover according to claim 5, characterized in that: A second guide portion (3a) is provided at one end of the extension portion (32) away from the pressing portion (31); the second guide portion (3a) is located on a side of the extension portion (32) away from the axis of the cover body (1); the second guide portion (3a) cooperates with the elastic buckle (2) to convert the axial movement of the driving member (3) into radial expansion and contraction of the elastic buckle (2).

7. The cup cover according to claim 5, characterized in that: The side portion (11) is provided with a guide groove (113), and the guide groove (113) extends along the axial direction of the cover body (1). At least a part of the extension portion (32) is accommodated in the guide groove (113) and can slide along the guide groove (113).

8. The cup cover according to any one of claims 1 to 7, characterized in that: The cup cover further comprises a first sealing ring (4), one end of the first sealing ring (4) along the axial direction of the cover body (1) abuts against the top (12), and the other end of the first sealing ring (4) along the axial direction of the cover body (1) forms a sealing portion (41).

9. The cup cover according to claim 8, characterized in that: Two annular abutment portions (42) are protruded from one side of the first sealing ring (4) facing the top portion (12); the two abutment portions (42) are sealed and connected to form an annular spacing groove (43); and the abutment portions (42) and the top portion (12) are in contact with each other.

10. The cup cover according to claim 9, characterized in that: Along a direction away from the sealing portion (41), at least one section of the abutting portion (42) is in the form of a concave-convex structure (421), and the concave-convex structure (421) is convex or concave along the radial direction of the cover body (1).

11. The cup cover according to any one of claims 1 to 7, characterized in that: The top (12) is provided with an exhaust hole (122), and the exhaust hole (122) is installed with a second sealing ring (8); The driving member (3) further comprises an exhaust rod (33) facing the second sealing ring (8), wherein the exhaust rod (33) cooperates with the second sealing ring (8) to open or close the exhaust hole (122).

12. A water cup, characterized in that: It comprises a cup body and the cup cover according to any one of claims 1 to 11, wherein the side wall of the cup body is provided with an annular stopper; The side portion surrounds the side wall of the cup body, and the elastic buckle and the annular stopper are buckled and connected with each other.

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