Leakage-proof portable water cup
By introducing a sealing and fastening mechanism into the water cup, and utilizing the cooperation of elastic seals and limiting components, the problem of water leakage caused by the gap between the cup body and the lid is solved, achieving a better sealing effect.
Patent Information
- Application Number
- CN202520367324.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-04
AI Technical Summary
When a gap forms between the cup body and the lid, the sealing effect of the existing water cup deteriorates, leading to leakage.
The sealing and fastening mechanism includes a second seal with elastic extension, a fastening limit component, and an unlocking component, which ensures that the second seal remains in contact with the cup body when there is a gap between the cup lid and the cup body, and achieves a secondary seal by accumulating and releasing elastic force.
It significantly improves the leak-proof performance of the water cup, prevents seal failure caused by lid movement, and ensures the stability of the sealing effect.
Smart Images

Figure CN223817130U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water cup technical field especially, relates to a portable water cup of leakproof. BACKGROUND
[0002] Now on the market popular a kind of water cup, the overall fan shape is presented when the water cup orthoview, it is rectangular when looking down, similar to sliced watermelon, therefore is named watermelon cup by people, the specific structure of the water cup can refer to the drawing in specification Figure 1 As shown, including the cup body of cross section approximate fan shape, cup body bottom level, the opening of cup body is the circular arc shape of outer protrusion, cup cover is set on cup body with fan ring, cup cover is set with a straw structure, the annular side of cup cover's concave is protruded and is set with the cooperation frame of partial insertion cup body, the outer wall of cooperation frame is equipped with the sealing ring of when cooperation frame inserts cup body and the inner wall of cup body abuts.
[0003] The above-mentioned water cup generally has relatively flat shape, is convenient to put into bag, to increase space utilization, but the cup cover of this kind of water cup and cup body rely on the friction force generated by sealing frame and cup body extruding sealing ring to keep connection, since cup body is fan-shaped, the two inner walls with included angle present the structure of outer big and inner small, when people press cup cover and cup body tightly, sealing ring gradually enters cup body and abuts with the inner wall of cup body along with cooperation frame, but if cup is not covered tightly or in the process of carrying, cup cover and cup body produce gap due to the contact with other articles, the abutment of sealing ring and cup body becomes not firm, leading to the poor sealing effect, therefore, the sealing function of this kind of water cup still has room for improvement. CONTENT OF THE UTILITY MODEL
[0004] In view of the poor sealing effect when the gap is generated between the cup body and the cup cover of the above-mentioned water cup, the utility model aims at providing a portable water cup of leakproof.
[0005] In order to solve the above-mentioned technical problem, the utility model is solved by the following technical scheme:
[0006] A kind of portable water cup of leakproof, including cup body and cup cover, cup body includes a pair of parallel straight side wall and a pair of angle of outer big and inner small included angle inclined side wall, cup cover is protruded with the cooperation frame of insertion cooperation with cup body, first sealing element is set on cooperation frame, sealing buckle mechanism is arranged between cup cover and cup body, sealing buckle mechanism includes second sealing element, which is elastically arranged on cup cover and elastically abuts against inclined side wall and cooperation frame during the process of cup cover insertion into cup body, buckle limiting component, which is connected with second sealing element and cup body to limit second sealing element from separating from cup body when cup cover and cup body are completely inserted, and unlocking component, which is used to release the connection state of buckle component and cup body.
[0007] With the above scheme, the second sealing member can abut against the inclined side wall and the matching block when the cup cover has not been completely inserted into the cup body, and gradually compressed to accumulate elastic force under the influence of the extrusion of the cup cover and the cup body. When a gap is generated between the cup cover and the cup body, the accumulated elastic force between the second sealing member and the cup cover is released, so that the second sealing member remains in the state of abutting against the inclined side wall and the matching block. At this time, the water in the cup body is blocked by the second sealing member after flowing out through the gap between the first sealing member and the inclined side wall. Therefore, the second sealing member in the scheme has the effect of secondary sealing, and the anti-leakage performance is significantly improved compared with the prior art.
[0008] Considering that the cup cover of the water cup is prone to generate a gap with the cup body to cause water leakage, and the friction force between the matching block and the second sealing member can cause the second sealing member to be compressed again due to the mutual extrusion and interaction among the matching block, the cup body and the second sealing member when the cup cover is moved. The second sealing member gradually recovers to the abutting state before by relying on the elastic force after the movement is stopped. The second sealing member is in an invalid state before recovering by relying on the elastic force, and water leakage is likely to occur. The buckle limiting component in the scheme can be triggered after the cup cover and the cup body are inserted to the limit, so that the second sealing member is connected with the cup body. In this way, when a gap occurs in the cup cover, the buckle limiting component can limit the movement of the second sealing member to keep the current connection state, and prevent the temporary invalidation of the second sealing member caused by the movement of the cup cover.
[0009] Preferably, a first accommodating groove is formed on the cup cover for the second sealing member to be telescopically arranged, and a first elastic member is arranged between the second sealing member and the first accommodating groove to drive the second sealing member to elastically extend.
[0010] Preferably, the buckle limiting component comprises a buckle member telescopically arranged on the second sealing member and a limiting groove formed on the inclined side wall for the extended buckle member to be partially buckled.
[0011] Preferably, a second accommodating groove is formed on the second sealing member for the buckle member to be telescopically arranged, and a second elastic member is arranged between the buckle member and the second accommodating groove to drive the buckle member to keep the extended state.
[0012] Preferably, the unlocking component comprises an unlocking button partially penetrating into the limiting groove and abutting against the buckle member.
[0013] Preferably, a third accommodating groove is formed on the outer wall of the cup body and communicates with the limiting groove, the unlocking button is telescopically arranged relative to the third accommodating groove, an abutting end of the unlocking button is formed on the end portion of the unlocking button and located in the limiting groove, and a third elastic member is arranged between the unlocking button and the third accommodating groove to drive the unlocking button to keep the extended state.
[0014] In the above solution, the fastener is placed on the second seal. When the fastener engages with the limiting groove, it can engage with the first elastic element to further restrict the second seal from detaching from the cup body. This not only connects the cup lid and the cup body but also helps to limit the second seal.
[0015] Preferably, the sealing and fastening mechanism is provided in two sets, one set on each side of the cup lid and between the two inclined sidewalls.
[0016] This utility model, by adopting the above technical solution, has significant technical effects: the second sealing element can abut against the inclined side wall and the mating block before the cup lid is fully inserted into the cup body. Subsequently, it is gradually compressed by the squeezing effect of the cup lid and the cup body, thereby accumulating elastic force. When a gap is generated between the cup lid and the cup body, the elastic force accumulated between the second sealing element and the cup lid will be released, so that the second sealing element remains against the inclined side wall and the mating frame. At this time, the water in the cup body will be blocked by the second sealing element after flowing out through the gap between the first sealing element and the inclined side wall. Therefore, the second sealing element in this solution has a secondary sealing effect, which achieves a significant improvement in leak-proof performance compared with the prior art. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the prior art in the background section;
[0018] Figure 2 This is a schematic diagram of the structure of a leak-proof portable water cup according to this embodiment;
[0019] Figure 3 yes Figure 2 A sectional view of AA in the middle;
[0020] Figure 4 yes Figure 3 A magnified view of the portion related to B in the image;
[0021] Figure 5 This is a schematic diagram of the structure of a leak-proof portable water cup during the process of pulling out the cup body;
[0022] Figure 6 yes Figure 5 A sectional view of CC in the middle;
[0023] Figure 7 yes Figure 6 A magnified view of a portion of D in the image.
[0024] The parts referred to by the numbers in the above attached figures are as follows: 1. Cup body; 101. Straight side wall; 102. Sloping side wall; 2. Cup lid; 3. Mating frame; 301. First sealing element; 4. Straw structure; 5. Second sealing element; 501. Sealing end; 6. First receiving groove; 7. First elastic element; 8. Fastener; 9. Limiting groove; 10. Second receiving groove; 11. Second elastic element; 12. Unlock button; 13. Abutting end; 14. Third receiving groove; 15. Third elastic element. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0026] Example
[0027] A leak-proof and portable water bottle, based on Figure 3 , 6 As shown, the cup includes a cup body 1 with an approximately fan-shaped cross-section. A cup lid 2 with a fan-shaped annular cross-section is fitted onto the cup body 1. The cup body 1 includes a pair of parallel straight sidewalls 101 and a pair of oblique sidewalls 102 with an outer larger and inner smaller included angle. A fitting frame 3 protrudes from the cup lid 2 and can be inserted into the cup body 1. A first sealing element 301 is fitted onto the fitting frame 3. A straw structure 4 is fitted onto the cup lid 2. All of the above structures are existing technologies and will not be described in detail in this embodiment.
[0028] The improvement in this embodiment is that a sealing fastening mechanism is provided between the cup lid 2 and the cup body 1, according to... Figure 4 , 7 As shown, the sealing and fastening mechanism includes a second sealing member 5 that is elastically telescopically disposed on the cup lid 2. The cup lid 2 has a first receiving groove 6 for the second sealing member 5 to telescopically move. The first receiving groove 6 is provided with a first elastic member 7 that drives the second sealing member 5 to maintain an elastically extended state. During the process of inserting the cup lid 2 into the cup body 1, the second sealing member 5 can elastically abut against the inclined side wall 102 and the mating frame 3. In this embodiment, the first elastic member 7 is a spring, and the second sealing member 5 is made of a rigid material. The part of it that abuts against the inclined inner wall forms a sealing end 501 made of rubber. There are two sets of sealing and fastening mechanisms, one set on each side of the cup lid 2 and between the two inclined side walls 102.
[0029] The sealing and fastening mechanism also includes a fastening limiting component for preventing the cup lid 2 from detaching from the cup body 1, according to... Figure 4 , 7As shown, the fastening and limiting assembly includes a fastening member 8 elastically telescopically mounted on a second sealing member 5. The second sealing member 5 has a second receiving groove 10 for the fastening member 8 to telescopically extend and retract. A second elastic member 11 is provided between the fastening member 8 and the second receiving groove 10 to keep the fastening member 8 in an extended state. A limiting groove 9 is provided on the inclined sidewall 102 for the extended fastening member 8 to partially engage. An unlocking component is also provided on the fastening member 8, according to… Figure 4 , 7 As shown, the unlocking component includes an unlocking button 12 that partially penetrates the limiting groove 9 and abuts against the fastener 8. A third receiving groove 14 communicating with the limiting groove 9 is provided on the outer wall of the cup body 1. The unlocking button 12 is telescopically arranged relative to the third receiving groove 14. The end of the unlocking button 12 forms an abutting end 13 located in the limiting groove 9. A third elastic member 15 is provided between the unlocking button 12 and the third receiving groove 14 to drive the unlocking button 12 to remain in the extended state. In this embodiment, both the second elastic member 11 and the third elastic member 15 are springs.
[0030] Based on the above structure, refer to Figures 1 to 7 As can be seen, the process of fitting the lid 2 of the leak-proof portable water cup to the cup body 1 in this embodiment is as follows:
[0031] The process of putting on the cup lid 2: First, align the mating frame 3 on the cup lid 2 with the cup body 1 and insert it. At this time, the second sealing member 5 gradually approaches and abuts against the inclined side wall 102. After that, continue to insert the cup lid 2, which will gradually compress the first elastic member 7. At the same time, the fastening member 8 will also abut against the inclined side wall 102 and gradually retract into the second receiving groove 10 as the cup lid 2 is inserted into the cup body 1. When the cup lid 2 is inserted into the cup body 1 to the limit, the fastening member 8 aligns with the limiting groove 9 and automatically pops out to fasten the limiting groove 9, thereby restricting the movement of the second sealing member 5.
[0032] The process of opening the cup lid 2: First, press the unlock button 12, which drives its abutting end 13 to push the fastener 8 out of the limiting groove 9. Then pull out the cup lid 2. During the pulling process, the second sealing member 5 will gradually extend out of the first receiving groove 6 until the maximum limit, and then move away from the cup body 1 together with the cup lid 2.
[0033] Based on the above-described cooperation process, it can be seen that the second sealing element 5 can abut against the inclined side wall 102 and the mating block before the cup lid 2 is fully inserted into the cup body 1. At the same time, the second sealing element 5 is gradually compressed by the squeezing effect of the cup lid 2 and the cup body 1, thereby accumulating elastic force. When a gap is generated between the cup lid 2 and the cup body 1, the elastic force accumulated between the second sealing element 5 and the cup lid 2 will be released, so that the second sealing element 5 remains against the inclined side wall 102 and the mating frame 3. At this time, the water in the cup body 1 will flow out through the gap between the first sealing element 301 and the inclined side wall 102 and will be blocked by the second sealing element 5. Therefore, the second sealing element 5 in this embodiment has a secondary sealing effect, which achieves a significant improvement in leak-proof performance compared with the prior art.
[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A leak-proof portable water cup, comprising a cup body (1) and a cup lid (2), wherein the cup body (1) comprises a pair of parallel straight sidewalls (101) and a pair of oblique sidewalls (102) forming an angle with a larger outer sidewall and a smaller inner sidewall, and the cup lid (2) is provided with a mating frame (3) that engages with the cup body (1), and a first sealing element (301) is fitted on the mating frame (3), characterized in that: A sealing fastening mechanism is provided between the cup lid (2) and the cup body (1). The sealing fastening mechanism includes a second sealing member (5) that is elastically telescopically disposed on the cup lid (2) and elastically abuts against the inclined side wall (102) and the mating frame (3) during the process of inserting the cup lid (2) into the cup body (1); a fastening limiting component that connects the second sealing member (5) to the cup body (1) after the cup lid (2) and the cup body (1) are fully inserted to limit the second sealing member (5) from disengaging from the cup body (1); and an unlocking component for releasing the connection state between the fastening component and the cup body (1).
2. The leak-proof portable water cup according to claim 1, characterized in that: The cup lid (2) has a first receiving groove (6) for the second sealing member (5) to extend and retract. A first elastic member (7) is provided between the second sealing member (5) and the first receiving groove (6) to drive the second sealing member (5) to extend elastically.
3. A leak-proof portable water cup according to claim 1, characterized in that: The fastening limiting assembly includes a fastening member (8) elastically telescopically disposed on the second seal (5) and a limiting groove (9) opened on the inclined sidewall (102) for the extended fastening member (8) to be partially fastened into.
4. A leak-proof portable water cup according to claim 3, characterized in that: The second sealing member (5) is provided with a second receiving groove (10) for the fastener (8) to extend and retract. A second elastic member (11) is provided between the fastener (8) and the second receiving groove (10) to drive the fastener (8) to remain in an extended state.
5. A leak-proof portable water cup according to claim 3, characterized in that: The unlocking component includes an unlocking button (12) that partially inserts into the limiting groove (9) and abuts against the fastener (8).
6. A leak-proof portable water cup according to claim 5, characterized in that: The outer wall of the cup body (1) is provided with a third receiving groove (14) that connects to the limiting groove (9). The unlocking button (12) is telescopically arranged relative to the third receiving groove (14). The end of the unlocking button (12) is formed with an abutting end (13) located in the limiting groove (9). A third elastic member (15) is provided between the unlocking button (12) and the third receiving groove (14) to drive the unlocking button (12) to remain in the extended state.
7. A leak-proof portable water cup according to claim 1, characterized in that: There are two sets of sealing and fastening mechanisms, one set on each side of the cup lid (2) and between the two inclined sidewalls (102).