A cup cover and a water cup
By designing a cup lid structure that combines a retractable seal with a beveled spring, the problem of inconvenient operation of traditional cup lids is solved, enabling easy one-handed unlocking and locking, enhancing sealing and heat preservation effects, and avoiding the risk of explosion caused by pressure differences.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGKANG JIURUI IND & TRADE CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional threaded cup lids are inconvenient to operate, especially with one hand. Furthermore, existing threadless cup lids have separate unlocking and locking positions, making them inconvenient to operate and resulting in poor sealing.
Design a cup lid with a retractable seal. The seal can be longitudinally contracted and extended through the cooperation of a movable snap-fit and a limiting component. The design of the inclined surface and spring simplifies the opening and closing operation, and the ring structure and safety lock enable safe and convenient unlocking and locking.
It enables convenient one-handed unlocking and locking, improves sealing and insulation, avoids the risk of explosion caused by internal and external pressure differences, and has a simple and stable structure.
Smart Images
Figure CN224461437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water cup technology, and in particular to a cup lid and a water cup. Background Technology
[0002] Water bottles are widely used in daily life, especially sports water bottles. To improve convenience, traditional threaded lids are less convenient and generally difficult to operate with one hand. Later, a series of threadless cups emerged, such as the one disclosed in patent number 201510474971.4, which discloses an openable container sealing plug. This method involves pressing the unlocking pins from both sides to release the seal, but locking the lid requires pulling up the push-pull part to seal the elastic seal. The unlocking position of this lid is located on both sides, while the locking position is on the top, making operation very inconvenient. This utility model provides a threadless water bottle where the unlocking and locking parts are located in one place, making operation simple, providing good sealing, and exhibiting a simple and stable structure. Utility Model Content
[0003] This utility model provides a cup lid and a water cup to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A cup lid has a retractable sealing element at its bottom. When the cup lid is placed on top of a cup body, the sealing element retracts longitudinally, widens laterally, and locks into the cup body's rim, thereby locking the cup lid to the cup body. When the sealing element extends longitudinally, narrows laterally, and disengages from the cup body's rim, the cup lid is unlocked from the cup body. The cup lid includes a movable latching element, a limiting element, and a switching element. The movable latching element is located inside the limiting element, and a locking post is fixedly connected inside the limiting element. The movable latching element has a locking element that abuts against the locking post. The upper end of the sealing element is fixedly connected to the limiting element, and the lower end is fixedly connected to the movable latching element.
[0006] Pressing the switch causes the locking element to move laterally, disengaging it from the locking post. The moving locking element moves downward relative to the limiting element, causing the sealing element to extend longitudinally. Moving the moving locking element upward causes the locking element to abut against the top of the locking post, causing the sealing element to contract longitudinally.
[0007] Furthermore, the cup lid also includes a shell, the limiting member is fixed inside the shell, the movable latching member has a sliding groove, the locking member is installed in the sliding groove, one end of the locking member has an inclined surface, and the switch member has a second inclined surface corresponding to the first inclined surface of the locking member. When the switch member is pressed, the second inclined surface moves down and the first inclined surface moves laterally, thereby disengaging the locking member from the latch, and the movable latching member moves down to open the cup lid.
[0008] Furthermore, the lower end of the switch is provided with a first spring. The upper end of the first spring is connected to the switch and the lower end is connected to the movable latching component. When the switch is pressed, the first spring is compressed. When the external force pressing the switch is removed, the restoring force of the first spring causes the switch to return to its original position.
[0009] Furthermore, a second spring is connected to the other end of the inclined surface of the locking member. One end of the second spring is connected to the locking member, and the other end is fixed to the movable latching member. When the movable latching member is moved upward, the first inclined surface contacts the latching post, causing the locking member to move laterally to one side of the latching post. The second spring is compressed. When the locking member moves upward to above the latching post, under the restoring force of the second spring, the latching member moves laterally to directly above the latching post, thereby locking the cup lid.
[0010] Optionally, the locking member has a third inclined surface at the other end of the first inclined surface, and the switching member has a fourth inclined surface corresponding to the third inclined surface. The fourth inclined surface is located below the third inclined surface. When the locking member is moved upward, the first inclined surface contacts the locking post, causing the locking member to move laterally to one side of the locking post. The third inclined surface contacts the fourth inclined surface, causing the switching member to move downward relative to the locking member. The first spring is compressed. When the locking member moves upward to above the locking post, the switching member moves upward under the restoring force of the first spring. The third inclined surface moves laterally, causing the locking member to move laterally to directly above the locking post, thereby locking the cup lid.
[0011] Furthermore, the upper part of the switch and the upper part of the movable card connector together form a ring structure. The switch is located below the movable card connector in the ring structure, and the circumferential angle of the upper part of the switch in the ring structure is smaller than the circumferential angle of the movable card connector in the ring structure.
[0012] Furthermore, the annular structure is equipped with a sliding C-shaped safety lock. The switch can only be pressed down when one end of the notch of the safety lock is aligned with the switch. When one end of the notch of the safety lock is not aligned with the switch, the upper end of the switch is blocked by the safety lock and the switch cannot be pressed down.
[0013] Furthermore, the bottom of the movable card connector is provided with an exhaust hole, the lower end of the switch is also provided with a sealing plug, the lower end of the switch is provided with a connecting plate, the lower end of the connecting plate is provided with a connecting post, the connecting post passes through the exhaust hole, the sealing plug is fixedly connected to the lower end of the connecting post and blocks the exhaust hole, and the first inclined surface and the second inclined surface are provided with a certain distance.
[0014] A water cup includes a cup body and any of the cup lids described above. The cup body has a stepped portion at the rim. When the sealing member is longitudinally contracted, its lateral width is greater than the width of the cup body rim. When the sealing member is longitudinally extended, its lateral width is less than the width of the cup body rim.
[0015] Furthermore, the stepped portion protrudes upwards to increase the contact area with the seal.
[0016] The outstanding and beneficial technical effects of this utility model compared to the prior art are as follows:
[0017] Firstly, by placing the switch within the movable latch, the upper parts of both form a ring structure. Simply inserting a finger into the ring structure to press the switch and move the latch upwards completes opening and locking the lid, making it very simple and convenient. Secondly, when opening the lid, the switch disengages the locking element from the latch. When locking the lid, the latch causes the locking element to move laterally. Under the action of a spring, the locking element returns to the top of the latch and locks the movable latch. Only the locking element moves while the latch remains fixed, resulting in a simple and stable structure. Thirdly, the spacing between the first and second inclined surfaces allows the vent to be opened before pressing down the switch to open the lid, ensuring consistent internal and external pressure and preventing explosions due to large pressure differences when opening the lid. Fourthly, the upward protrusion of the stepped portion increases the contact area with the sealing element, enhancing the sealing and heat preservation effects of the lid and cup. Fifthly, the safety lock is located within the ring structure, allowing for easy operation of unlocking, opening, closing, and locking the safety lock all within the ring structure, making it very convenient and suitable for push rods.
[0018] To make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Appendix Figure 1 This utility model uses an explosion illustration of a cup lid;
[0021] Appendix Figure 2 : A three-dimensional schematic diagram of the cup lid of this utility model;
[0022] Appendix Figure 3 Appendix Figure 2 A schematic cross-sectional view of the CC section;
[0023] Appendix Figure 4 Schematic diagram of the internal structure of the cup lid of this utility model Figure 1 ;
[0024] Appendix Figure 5 Schematic diagram of the internal structure of the cup lid of this utility model Figure 2 ;
[0025] Appendix Figure 6 : Overall schematic diagram of the water cup of this utility model;
[0026] Appendix Figure 7 : A cross-sectional schematic diagram of the cup body used in this utility model;
[0027] Appendix Figure 8 Appendix Figure 7 An enlarged view of point A; Detailed Implementation
[0028] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.
[0029] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] like Figure 1-6As shown, a cup lid 1 has a retractable sealing element 2 at its bottom. The sealing element 2 is made of silicone. When the cup lid 1 is placed on the upper end of the cup body 8, the sealing element 2 can retract longitudinally, widen laterally, and lock at the opening of the cup body 8, thereby locking the cup lid 1 to the cup body 8. The sealing element 2 can also extend longitudinally, narrow laterally, and disengage from the opening of the cup body 8, thereby unlocking the cup lid 1 from the cup body 8. The cup lid 1 includes a movable latching element 3, a limiting element 4, and a switch element 5. The movable latching element 3 is located inside the limiting element 4. A locking post 41 is fixedly connected inside the limiting element 4. The movable latching element 3 is provided with a locking element 31, which abuts against the locking post 41. The upper end of the sealing element 2 is fixedly connected to the limiting element 4, and the lower end is fixedly connected to the movable latching element 3.
[0032] The limiting member 4 is fixed in place, and the movable latching member 3 abuts against the upper part of the locking post 41 through the locking member 31, so that the movable latching member 3 and the limiting member 4 are relatively fixed. When the locking member 31 abuts against the upper part of the locking post 41, the sealing member 2 is in a longitudinally contracted state, and the cup body 8 and the cup lid 1 are in a locked state. Pressing the switch member 5 can make the locking member 31 move laterally, so that the locking member 31 is disengaged from the locking post 41, the movable latching member 3 moves down relative to the limiting member 4, the sealing member 2 extends longitudinally, and the cup lid 1 and the cup body 8 are unlocked; moving the movable latching member 3 up causes the sealing member 2 to contract longitudinally, and moving the locking member 31 laterally again causes the locking member 31 to abut against the upper part of the locking post 41, keeping the sealing member 2 contracted longitudinally, and the cup lid 1 and the cup body 8 locked.
[0033] like Figure 3-4 As shown, the upper part of the switch 5 and the upper part of the movable latching member 3 together form a ring structure. The switch 5 is located below the movable latching member 3 in the ring structure, and the circumferential angle of the upper part of the switch 5 in the ring structure is smaller than the circumferential angle of the movable latching member 3 in the ring structure. A slidable C-shaped safety lock 6 is provided within the ring structure. The switch 5 can only be pressed down when one end of the notch of the safety lock 6 is aligned with the switch 5. When one end of the notch of the safety lock 6 is not aligned with the switch 5, the upper part of the switch 5 is blocked by the safety lock 6, and the switch 5 cannot be pressed down. A slide rail is provided within the ring structure. The slide rail includes a switch part slide rail and a movable latching member slide rail, which together form a closed circular slide rail. The safety lock 6 slides within the slide rail.
[0034] Insert your finger into the annular structure and activate the safety lock 6, aligning its notch with the switch 5. The notch width of the safety lock 6 is greater than the span of the switch 5, allowing you to press the switch 5 to lock the cup lid 1. To lock the cup lid 1, use the fixed limiting piece 4 and push the moving locking piece 3 on the annular structure with your finger. This prevents accidentally pressing the switch 5 to open the cup lid 1.
[0035] like Figure 4As shown, the cup lid 1 also includes a safety lock 6, and the limiting member 4 is fixed inside the safety lock 6. The shape of the upper part of the safety lock 6 is adapted to the ring structure.
[0036] like Figure 1-5 As shown, the movable latching component 3 has a sliding groove 32, and the locking component 31 is installed in the sliding groove 32. One end of the locking component 31 has an inclined surface. The switch component 5 has a second inclined surface 51 corresponding to the first inclined surface 311 of the locking component 31. When the switch component 5 is pressed, the second inclined surface 51 moves downward, causing the first inclined surface 311 to move laterally, thereby disengaging the locking component 31 from the latch 41, and the movable latching component 3 moves downward, opening the cup lid 1. The lower end of the switch component 5 has a first spring 52. The upper end of the first spring 52 is connected to the switch component 5, and the lower end is connected to the movable latching component 3. When the switch component 5 is pressed, the spring is compressed. When the external force of pressing the switch component 5 is removed, the restoring force of the first spring 52 causes the switch component 5 to return to its original position.
[0037] like Figure 3-5 As shown, the first inclined surface 311 of the locking member 31 is connected to a second spring 33 at the other end. One end of the second spring 33 is connected to the locking member 31, and the other end is fixed to the movable latching member 3. When the switch member 5 is pressed, the second inclined surface 51 moves down and pushes the first inclined surface 311, causing the locking member 31 to move laterally in the sliding groove 32 and compress the second spring 33. The locking member 31 disengages from the latch 41, and the movable latching member 3 moves down as a whole. The locking member 31 also moves down relative to the latch 41. The restoring force of the second spring 33 pushes the latching member to be directly below the latch 41. When the movable latching member 3 is pushed up, the latch 41 pushes the first inclined surface 311, causing the locking member 31 to move laterally in the sliding groove 32 and compress the second spring 33 until the horizontal height of the locking member 31 is higher than the latch 41. The restoring force of the second spring 33 pushes the locking member 31 to be directly above the latch 41, and the movable latching member 3 is fixed relative to the limiting member 4.
[0038] Optional, such as Figure 3As shown, the locking member 31 has a third inclined surface 312 at the other end of the first inclined surface 311, and the switching member 5 has a fourth inclined surface 53 corresponding to the third inclined surface 312. The fourth inclined surface 53 is located below the third inclined surface 312. When the switch 5 is pressed, the first spring 52 is compressed, the second inclined surface 51 moves down and pushes the first inclined surface 311, causing the locking part 31 to move laterally within the sliding groove 32. The locking part 31 disengages from the locking post 41, and the movable locking part 3 moves down as a whole. The locking part also moves down relative to the locking post 41. The restoring force of the first spring 52 causes the switch 5 to move up, and the fourth inclined surface 53 pushes the third inclined surface 312, causing the locking part 31 to move laterally to directly below the locking post 41. When the movable locking part 3 is pushed up, the locking post 41 pushes the first inclined surface 311, causing the locking part 31 to move laterally within the sliding groove 32. The third inclined surface 312 presses down on the fourth inclined surface 53, causing the switch 5 to move down. The first spring 52 is compressed until the horizontal height of the locking part 31 is higher than the locking post 41. The restoring force of the first spring 52 causes the switch 5 to move up, and the fourth inclined surface 53 pushes the third inclined surface 312, causing the locking part 31 to move laterally to directly above the locking post 41. The movable locking part 3 is fixed relative to the limiting part 4.
[0039] like Figure 1 , 3 As shown, the bottom of the movable latch 3 is provided with a vent 34, and the lower end of the switch 5 is also provided with a sealing plug 54. The lower end of the switch 5 is provided with a connecting plate 55, and the lower end of the connecting plate 55 is provided with a connecting post 56. The connecting post 56 passes through the vent 34, and the sealing plug 54 is fixedly connected to the lower end of the connecting post 56 and blocks the vent 34. Pressing down the switch 5 will open the vent 34. There is a certain distance between the first inclined surface 311 and the second inclined surface 51. When the switch 5 is pressed, the vent 34 is opened first to release pressure, and then the cup lid 1 is opened. This avoids an explosion caused by a large pressure difference between the inside and outside when the cup lid 1 is opened.
[0040] like Figure 6-8 As shown, a water cup includes a cup body 8 and a lid 1 as described above. The cup body 8 has a stepped portion 81 at its rim. When the sealing element 2 is longitudinally contracted, its lateral width is greater than the width of the cup rim of the cup body 8; when the sealing element 2 is longitudinally extended, its lateral width is less than the width of the cup rim of the cup body 8. The stepped portion 81 protrudes upwards, increasing the contact area with the sealing element 2. In the prior art, the stepped portion 81 is usually horizontally or curved. While it can lock the lid 1, the contact area between the sealing element 2 and the stepped portion 81 is small, resulting in poor sealing and heat preservation effects. The stepped portion 81 protrudes upwards, allowing the sealing element 2 to have a larger contact area with the stepped portion 81 when it is longitudinally contracted, thus providing a stronger sealing and protective effect.
[0041] The lower end of the cup lid 1 is also provided with a tea strainer connection section, which can be connected to the tea strainer connection section by a threaded connection. The cup lid 1 has a thread hole on its exterior, through which the carrying cord can be passed to facilitate carrying the water cup.
[0042] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.
Claims
1. A cup lid, wherein the bottom of the cup lid is provided with a retractable sealing element, wherein when the cup lid is placed on the upper end of a cup body, the sealing element retracts longitudinally, widens laterally, and locks into the cup body's rim, thereby locking the cup lid to the cup body; the sealing element extends longitudinally, narrows laterally, and disengages from the cup body's rim, thereby unlocking the cup lid from the cup body, characterized in that: The cup lid (1) includes a movable latching member (3), a limiting member (4) and a switch member (5). The movable latching member (3) is provided with a locking member (31). A locking post (41) is fixedly connected inside the limiting member (4). The locking member (31) abuts against the locking post (41). The upper end of the sealing member (2) is fixedly connected to the limiting member (4), and the lower end is fixedly connected to the movable latching member (3). Pressing the switch (5) will disengage the locking part (31) from the locking post (41), move the locking part (3) downward relative to the limiting part (4), and extend the sealing part (2) longitudinally; move the locking part (3) upward, and the locking part (31) will abut against the top of the locking post (41), and retract the sealing part (2) longitudinally.
2. A cup lid according to claim 1, characterized in that: The cup lid (1) also includes a shell (7), the limiting member (4) is fixed inside the shell (7), the movable latch (3) is provided with a sliding groove (32), the locking member (31) is installed in the sliding groove (32), one end of the locking member (31) is provided with a first inclined surface (311), the switch member (5) is provided with a second inclined surface (51) corresponding to the first inclined surface (311) of the locking member (31), when the switch member (5) is pressed, the second inclined surface (51) moves down and the first inclined surface (311) moves laterally, thereby causing the locking member (31) to disengage from the latch (41), the movable latch (3) moves down and the cup lid (1) is opened.
3. A cup lid according to claim 2, characterized in that: The lower end of the switch (5) is provided with a first spring (52). The upper end of the first spring (52) is connected to the switch (5), and the lower end is connected to the movable latch (3). When the switch (5) is pressed, the first spring (52) is compressed. When the external force of pressing the switch (5) is removed, the restoring force of the first spring (52) makes the switch (5) return to its original state.
4. A cup lid according to claim 3, characterized in that: The first inclined surface (311) of the locking member (31) is connected to a second spring (33) at the other end. One end of the second spring (33) is connected to the locking member (31), and the other end is fixed on the movable latching member (3). When the movable latching member (3) is moved up, the first inclined surface (311) contacts the latch (41), causing the locking member (31) to move laterally to one side of the latch (41). The second spring (33) is compressed. When the locking member (31) moves up to above the latch (41), under the restoring force of the second spring (33), the locking member (31) moves laterally to directly above the latch (41), thereby locking the cup lid (1).
5. A cup lid according to claim 3, characterized in that: The locking member (31) has a third inclined surface (312) at the other end of the first inclined surface (311). The switch member (5) has a fourth inclined surface (53) corresponding to the third inclined surface (312). The fourth inclined surface (53) is located below the third inclined surface (312). When the moving latch (3) moves upward, the first inclined surface (311) contacts the latch (41), causing the locking member (31) to move laterally to the side of the latch (41). The third inclined surface (312) pushes the fourth inclined surface (53), causing the switch member (5) to move downward relative to the locking member (31). The first spring (52) is compressed. When the locking member (31) moves upward to above the latch (41), the switch member (5) moves upward under the restoring force of the first spring (52). The fourth inclined surface (53) moves upward, and the third inclined surface (312) moves laterally, causing the latch to move laterally to directly above the latch (41), thereby locking the cup lid (1).
6. A cup lid according to any one of claims 2-5, characterized in that: The upper part of the switch (5) and the upper part of the movable card (3) together form a ring structure. The switch (5) is located below the movable card (3) in the ring structure. The circumferential angle of the upper part of the switch (5) in the ring structure is smaller than the circumferential angle of the movable card (3) in the ring structure.
7. A cup lid according to claim 6, characterized in that: The ring structure is provided with a sliding C-shaped safety lock (6). The switch (5) can only be pressed down when the notch of the safety lock (6) is aligned with the switch (5). When the notch of the safety lock (6) is not aligned with the switch (5), the upper end of the switch (5) is blocked by the safety lock (6) and the switch (5) cannot be pressed down.
8. A cup lid according to claim 6, characterized in that: The bottom of the movable card connector (3) is provided with an exhaust hole (34), the lower end of the switch (5) is also provided with a sealing plug (54), the lower end of the switch (5) is provided with a connecting plate (55), the lower end of the connecting plate (55) is provided with a connecting post (56), the connecting post (56) passes through the exhaust hole (34), the sealing plug (54) is fixedly connected to the lower end of the connecting post (56) and blocks the exhaust hole (34), and the first inclined surface (311) and the second inclined surface (51) are provided with a certain distance.
9. A water cup, characterized in that: Includes a cup body (8) and a cup lid (1) as described in any one of claims 1-8. The cup body (8) has a stepped portion (81) at the rim. When the sealing member (2) is longitudinally contracted, its lateral width is greater than the rim width of the cup body (8). When the sealing member (2) is longitudinally extended, its lateral width is less than the rim width of the cup body (8).
10. A water cup according to claim 9, characterized in that: The stepped portion (81) protrudes upward to increase the contact area with the seal (2).