Leakage-proof cup cover capable of self-locking buckle through elasticity
The cup lid features a flexible self-locking mechanism and a modular design, which solves the problem of liquid leakage caused by the lid loosening due to external factors. This achieves efficient sealing, convenient use, and extends the lifespan of the cup.
Patent Information
- Application Number
- CN202511103750.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2025-11-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing cup lids are prone to loosening when subjected to bumps, pressure, or misoperation, leading to liquid leakage and failing to meet the requirements for leak-proof performance and ease of use.
The cup lid and top cover are automatically locked and sealed by a flexible self-locking buckle mechanism that connects the threaded rod and the threaded ring to form a modular assembly.
The lid is not easily loosened by external factors, has a good sealing effect, extends service life, saves resources, and is simple and convenient to operate.
Smart Images

Figure CN120899093A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of cup covers, in particular to a leak-proof cup cover through elastic self-locking buckles. BACKGROUND
[0002] In daily life, people often encounter the problem of liquid leakage caused by the poor sealing of cup covers when using cups to hold liquid, especially during outdoor activities, travel or daily commuting with the cup, the leak-proof performance of the cup cover is particularly important.
[0003] Traditional cup covers are mostly sealed by simple thread connection or ordinary buckles, and are prone to looseness and opening when subjected to jolting, extrusion or misoperation, thereby causing liquid leakage, which not only causes inconvenience, but also may damage surrounding objects. Some cup covers with spring self-locking function may leak due to external factors such as extrusion and impact, which is difficult to meet the needs of the public for the leak-proof performance and use convenience of cup covers.
[0004] Therefore, it is necessary to provide a leak-proof cup cover through elastic self-locking buckles to solve the above technical problems. SUMMARY
[0005] The present application aims to provide a leak-proof cup cover through elastic self-locking buckles to solve the problems in the background art. The technical solution of the present application provides a solution significantly different from the prior art to solve the technical problem of the prior art solution being too single.
[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a leak-proof cup cover through elastic self-locking buckles, comprising a cup body, a cup cover installed on the top outer side of the cup body, a detachable top cover installed on the top of the cup cover, and a clamping mechanism with self-locking function installed on one side of the cup cover and the top cover.
[0007] Preferably, one side of the cup cover is provided with a fixing seat, the top front and rear ends of the fixing seat are provided with fixing plates, two groups of the fixing plates are provided with a mounting seat fixed on one side of the top cover between the opposite fixing plates, the far side of the two groups of the fixing plates away from the mounting seat is provided with a bearing, and the inside of the bearing is rotatably connected with a splicing assembly splicable with the mounting seat.
[0008] Preferably, the splicing assembly comprises a threaded ring rotatably connected to the inside of the bearing, a threaded rod screwedly connected to the inside of the threaded ring, and a threaded groove screwedly connected with the threaded rod and formed in the front and rear ends of the mounting seat.
[0009] Preferably, the bottom of the top cover is connected with a sealing rubber strip matched with the top of the cup cover.
[0010] Preferably, the clamping mechanism comprises a connecting seat connected to the other side of the cup cover, a groove is formed in the top of the connecting seat, a slot is formed in one side of the connecting seat and communicates with the groove, a clamping block is mounted on the other side of the top cover and clamped with the groove, a clamping block is connected to the bottom of the clamping block and extends into the slot, and a limiting assembly is arranged in the slot and limits the clamping block.
[0011] Preferably, the limiting assembly comprises springs mounted equidistantly at the front and rear ends of the slot near the cup cover, the other end of the spring is connected with a movable block, a limiting plate is mounted on the side of the movable block towards the center of the cup cover, and a limiting slot is formed in the center of one side of the clamping block.
[0012] Preferably, one side of the top of the limiting plate is inclined, and one side of the bottom of the clamping block is inclined.
[0013] Preferably, an arc-shaped seat is mounted on the center of one side of the movable block, and an adjusting ring is arranged in the arc-shaped seat.
[0014] Compared with the prior art, the present application has the following advantages: When the top cover needs to be spliced on the cup cover, the top cover is first positioned on the top of the cup cover, then a person holds the bearing and the threaded ring to fix them, at this time the threaded rod is rotated to enter the threaded ring, and continuously rotates to move towards the mounting seat, until the threaded rod is inserted into the threaded groove, at this time the mounting seat is integrated with the threaded ring through the threaded rod and forms a rotating connection with the bearing, and the top cover can be freely rotated to open. The cup cover and the top cover formed by the modular assembly only need to replace the corresponding assembly when a group of workpieces are damaged, which not only saves a lot of resources, but also greatly increases the service life of the cup. When the top cover is closed, only the top cover needs to be rotated around the center of the bearing shaft, the clamping block connected to one side of the top cover is inserted into the groove, the clamping block is automatically locked by the limiting assembly during the insertion process, after the clamping block is inserted into the slot, the limiting plate is extruded to move to the outside, until the limiting plate is flush with the limiting slot, the limiting plate is inserted into the limiting slot to complete the limiting by the elastic force of the spring, and the automatic locking between the top cover and the cup cover is realized. When the locking between the top cover and the cup cover needs to be released, only the adjusting ring needs to be pulled to drive the movable block away from the clamping block to make the limiting plate contact with the limiting slot, which is simple and convenient, and even if it is extruded, impacted or affected by other external factors, the top cover will not be opened and will not leak. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The three-dimensional view of the cup cover and the cup body connected by the present application Figure 1 ; Figure 2 The three-dimensional view of the cup cover and the cup body connected by the present applicationFigure 2 ; Figure 3 The cup cover is shown in the perspective view of the cup cover of the present application; Figure 4 The cup cover is shown in the perspective view of the cup cover of the present application; Figure 5 The cup cover is shown in the perspective view of the cup cover of the present application; Figure 6 The cup cover is shown in the perspective view of the cup cover of the present application.
[0016] In the figure: 1, cup body; 2, cup cover; 3, top cover; 301, sealing rubber strip; 4, clamping mechanism; 401, connecting seat; 402, groove; 403, slot; 404, clamping block; 405, clamping block; 5, fixing seat; 6, fixing plate; 7, mounting seat; 8, bearing; 9, threaded ring; 10, threaded rod; 11, threaded groove; 12, spring; 13, movable block; 14, limiting plate; 15, limiting groove; 16, arc-shaped seat; 17, adjusting ring. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0018] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.
[0019] Please refer toFigures 1-6 A leak-proof cup cover with elastic self-locking buckle, comprising a cup body 1, a cup cover 2 installed on the top outside of the cup body 1, and a detachable top cover 3 installed on the top of the cup cover 2, wherein the cup cover 2 and the top cover 3 are provided with a clamping mechanism 4 with self-locking function on one side.
[0020] As shown in Figures 1-6 , a fixing seat 5 is installed on one side of the cup cover 2, fixing plates 6 are installed on the top front and rear ends of the fixing seat 5, two sets of fixing plates 6 are provided opposite to each other and are provided with a mounting seat 7 fixed on one side of the top cover 3, bearings 8 are installed on the side of the two sets of fixing plates 6 away from the mounting seat 7, and a splicing assembly that can be spliced with the mounting seat 7 is rotatably connected inside the bearing 8, and the mounting seat 7 is fixed between the two fixing plates 6 through the splicing assembly.
[0021] As shown in Figures 1-6 , the splicing assembly comprises a threaded ring 9 rotatably connected inside the bearing 8, a threaded rod 10 threadedly connected inside the threaded ring 9, and threaded grooves 11 threadedly connected with the threaded rod 10 are formed in the front and rear ends of the mounting seat 7, when the top cover 3 is spliced on the cup cover 2, first position the top cover 3 on the top of the cup cover 2, then hold the bearing 8 and the threaded ring 9 fixed, at this time rotate the threaded rod 10 into the inside of the threaded ring 9, continue to rotate and move towards the mounting seat 7, until the threaded rod 10 is inserted into the threaded groove 11, at this time the mounting seat 7 is integrally connected with the bearing 8 through the threaded rod 10 and the threaded ring 9, and the top cover 3 can be freely rotated and opened, the cup cover 2 and the top cover 3 formed by the modular assembly can only need to replace the corresponding assembly after one set of workpiece is damaged, not only saving a lot of resources, but also greatly increasing the service life of the cup.
[0022] As shown in Figures 1-6 , the bottom of the top cover 3 is connected with a sealing rubber strip 301 matched with the top of the cup cover 2, and the sealing rubber strip 301 has good sealing effect.
[0023] As shown in Figures 1-6 , the clamping mechanism 4 comprises a connecting seat 401 connected to the other side of the cup cover 2, a recess 402 formed in the top of the connecting seat 401, a slot 403 formed in one side of the connecting seat 401 and communicated with the recess 402, a clamping block 404 installed on the other side of the top cover 3 and clamped with the recess 402, a clamping block 405 connected to the bottom of the clamping block 404 and extending into the slot 403, and a limiting assembly provided in the inside of the slot 403 and limiting the clamping block 405, when closing the top cover 3, only need to rotate the top cover 3 with the bearing 8 as the axis, insert the clamping block 404 connected to one side of the top cover 3 into the recess 402, and the clamping block 405 automatically realizes the locking function through the limiting assembly during the insertion process.
[0024] AsFigures 1-6 As shown, the limiting assembly comprises springs 12 equidistantly installed at the front and rear ends of the slot 403 near the cup cover 2, the other end of the spring 12 is connected with a movable block 13, the movable block 13 is installed with a limiting plate 14 towards the center of the side of the cup cover 2, a limiting slot 15 is formed at the center of one side of the clamping block 405, after the clamping block 405 is inserted into the slot 403, the limiting plate 14 will be extruded to move to the outside until the limiting plate 14 is flush with the limiting slot 15, then the limiting plate 14 will be inserted into the limiting slot 15 by the elastic force of the spring 12 to complete the limiting, thereby achieving the automatic locking between the top cover 3 and the cup cover 2.
[0025] As shown in the figure, Figures 1-6 The top side of the limiting plate 14 is inclined, the bottom side of the clamping block 405 is inclined, and the inclined surfaces of the limiting plate 14 and the clamping block 405 are arranged to extrude and move the limiting plate 14 after contact.
[0026] As shown in the figure, Figures 1-6 The movable block 13 is installed with an arc-shaped seat 16 at the center of one side, and the arc-shaped seat 16 is provided with an adjusting ring 17, when it is necessary to release the locking between the top cover 3 and the cup cover 2, only need to pull the adjusting ring 17 to drive the movable block 13 away from the clamping block 405 to make the limiting plate 14 contact and lock with the limiting slot 15, which is simple and convenient, and even if affected by external extrusion, impact and other external factors, the top cover 3 will not be opened and leaked.
[0027] Working principle: when using, when splicing the top cover 3 on the cup cover 2 is needed, first, cover the top cover 3 on the cup cover 2, then press the bearing 8 and the threaded ring 9, at this time, rotate the threaded rod 10 into the threaded ring 9, continue to rotate and move towards the mounting seat 7, until the threaded rod 10 is inserted into the threaded groove 11, at this time, the mounting seat 7 is integrated with the threaded ring 9 and the bearing 8 to form a rotating connection, the top cover 3 can be freely rotated and opened, the cup cover 2 and the top cover 3 formed by realizing the modular assembly can be replaced after a group of workpieces are damaged, which not only saves a lot of resources, but also greatly increases the service life of the cup, the sealing rubber strip 301 has good sealing effect, when closing the top cover 3, only need to rotate the top cover 3 with the bearing 8 as the axis, insert the clamping block 404 connected on one side of the top cover 3 into the groove 402, the clamping block 405 is automatically locked by the limiting assembly during insertion, after the clamping block 405 is inserted into the slot 403, the limiting plate 14 is extruded to move to the outside, until the limiting plate 14 is flush with the limiting groove 15, the limiting plate 14 is inserted into the limiting groove 15 to complete the limiting by the elastic force of the spring 12, the automatic locking between the top cover 3 and the cup cover 2 is realized, when the locking between the top cover 3 and the cup cover 2 is needed to be released, only need to pull the adjusting ring 17 to drive the movable block 13 away from the clamping block 405 to make the limiting plate 14 contact with the limiting groove 15, which is simple and convenient, and even if affected by external extrusion, impact and other external factors, the top cover 3 will not be opened and leaked.
[0028] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other concrete forms without departing from the spirit or essential characteristics thereof. The presently disclosed embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No limitation is intended to the scope of the claims based on any embodiment illustrated in the drawings.
Claims
1. A leak-proof cup cover by elastic self-locking buckle, comprising a cup body (1), characterized in that: The top outer side of the cup body (1) is provided with a cup cover (2), the top of the cup cover (2) is provided with a detachable top cover (3), one side of the cup cover (2) and the top cover (3) is provided with a clamping mechanism (4) with self-locking function.
2. A leak-proof cup cover by elastic self-locking buckle according to claim 1, characterized in that: One side of the cup cover (2) is provided with a fixing seat (5), the top of the fixing seat (5) is provided with a fixing plate (6), two groups of fixing plates (6) are provided with a mounting seat (7) fixed on one side of the top cover (3) between the opposite sides, the side of the two groups of fixing plates (6) away from the mounting seat (7) is provided with a bearing (8), the inside of the bearing (8) is rotatably connected with a splicing assembly splicable with the mounting seat (7).
3. A leak-proof cup lid by elastic self-locking buckle according to claim 2, characterized in that: The splicing assembly comprises a threaded ring (9) rotatably connected to the inside of the bearing (8), the inside of the threaded ring (9) is threadedly connected with a threaded rod (10), and the front and rear ends of the mounting seat (7) are provided with threaded grooves (11) threadedly connected with the threaded rod (10).
4. A leak-proof cup cover by elastic self-locking buckle according to claim 1, characterized in that: The bottom of the top cover (3) is connected with a sealing rubber strip (301) matched with the top of the cup cover (2).
5. A leak-proof cup lid by elastic self-locking buckle according to claim 1, characterized in that: The clamping mechanism (4) comprises a connecting seat (401) connected to the other side of the cup cover (2), the top of the connecting seat (401) is provided with a groove (402), one side of the connecting seat (401) is provided with a slot (403) in communication with the groove (402), the other side of the top cover (3) is provided with a clamping block (404) clamped with the groove (402), the bottom of the clamping block (404) is connected with a clamping block (405) extending into the slot (403), and the inside of the slot (403) is provided with a limiting assembly limiting the clamping block (405).
6. A leak-proof cup lid by elastic self-locking buckle according to claim 5, characterized in that: The limiting assembly comprises springs (12) installed equidistantly on the front and rear ends of the slot (403) close to one side of the cup cover (2), the other end of the spring (12) is connected with a movable block (13), the side of the movable block (13) towards the center of the cup cover (2) is provided with a limiting plate (14), and one side of the clamping block (405) is provided with a limiting groove (15).
7. A leak-proof cup lid by elastic self-locking buckle according to claim 6, characterized in that: The top side of the limiting plate (14) is inclined, and the bottom side of the clamping block (405) is inclined.
8. A leak-proof cup lid by elastic self-locking buckle according to claim 6, characterized in that: The side of the movable block (13) is provided with an arc-shaped seat (16), and the inside of the arc-shaped seat (16) is provided with an adjusting ring (17).