A secure quick-opening cup
Patent Information
- Application Number
- CN202522485427.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-24
AI Technical Summary
In the existing technology, the snap-fit and elastic components of the quick-opening cup are set independently, which leads to complex component assembly and is prone to adaptation deviation and insufficient stability after long-term use.
The cup lid is secured to the top of the fixed guide tube by an elastic buckle, which, combined with the beveled part of the fixed inner lid and the elastic hook of the movable inner lid, allows for stable engagement and easy opening of the cup lid by controlling the engagement state via a button. The integrated design of the elastic hook and buckle reduces the complexity of the parts.
It achieves a stable locking between the cup lid and the cup mouth, preventing the locking from loosening, maintaining long-term smoothness and stability, and making operation convenient and quick.
Smart Images

Figure CN224924889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water cups, and in particular to a stable quick-opening cup. Background Technology
[0002] The quick-opening cup uses a snap-fit mechanism to quickly engage the lid and rim of the cup. The snap-fit mechanism can be released by a button, either by lateral movement or lever action, allowing the lid to open quickly.
[0003] The snap-fit mechanism of quick-opening cups is often an independent component, and the snap-fit is maintained by applying elastic force through an independently designed elastic element. This combination method not only increases the complexity of the components, but also makes it easy for the elastic element to become misfitted after long-term repeated opening and closing, resulting in loose snap-fit and the stability needs to be improved. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this invention is to provide a stable quick-opening cup that solves the problem that most quick-opening cups currently have independently set snap-fit and elastic components, resulting in complex component combinations. Long-term use can easily lead to misfitting of the elastic components, causing the snap-fit to loosen.
[0005] The technical solution of this utility model is as follows: A stable, quick-opening cup includes a cup body and a lid. The cup body has a narrowed diameter section around the rim. A button is slidably embedded in the top surface of the lid. The lid includes a fixed outer lid and a fixed inner lid. A movable inner lid is located below the fixed inner lid. The fixed inner lid has a fixed guide tube in its middle. The movable inner lid has a movable guide tube extending upward through the fixed guide tube in its middle. The surface of the movable guide tube has an elastic buckle. A first compression spring is provided between the movable inner lid and the fixed inner lid. Applying downward pressure to the movable inner lid causes the elastic buckle to engage with the top of the fixed guide tube. The movable inner lid has a raised elastic hook on its outer periphery. The fixed inner lid has a beveled section on its inner side. The beveled section presses against the elastic hook to engage with the narrowed diameter section. The bottom periphery of the movable inner lid has a sealing ring that presses against the top of the rim. Multiple elastic hooks and elastic buckles are distributed in a ring.
[0006] Preferably, the bottom of the button is adapted to slide and fit around the periphery of the moving guide cylinder, the inner side of the bottom opening of the button is chamfered, the top of the elastic buckle has an outward inclined surface, the bottom of the button presses against the elastic buckle on the inner inclined surface of the moving guide cylinder, and the inner side of the button has a core cylinder, which is adapted to slide and fit inside the moving guide cylinder.
[0007] Preferably, the surface of the movable inner cover is provided with an air hole that passes through the movable guide cylinder, an exhaust plug is inserted into the air hole with a gap, the bottom end of the exhaust plug has a rubber head, a second compression spring is provided between the exhaust plug and the movable inner cover, and an upward elastic force is applied to the exhaust plug to make the rubber head press against and seal the air hole, and the core cylinder is aligned downward with the exhaust plug.
[0008] Preferably, the outer cover has a through slot in the center, the button is inserted into the slot, the bottom edge of the button has an enlarged edge, and a third compression spring is provided between the button and the fixed inner cover to apply an upward elastic force to the button so that the enlarged edge abuts against the bottom of the slot.
[0009] Preferably, the upper surface of the fixed inner cover has multiple openings, and the upper surface of the movable inner cover has multiple barbs fixed thereon, which slide upward through the openings.
[0010] The beneficial effects of this utility model are as follows: This invention uses an elastic buckle to engage with the top of the fixed guide cylinder, while the inclined surface of the fixed inner cover presses against the elastic hook of the movable inner cover to engage with the reduced diameter section. This achieves a stable engagement between the cup lid and the cup mouth. Simply press the button to push the elastic buckle inward, releasing the engagement restriction on the movable inner cover. The elastic force pushes the elastic hook to separate from the inclined surface and expand, releasing the cup lid from engagement. The opening and closing of the cup lid is convenient and quick. Furthermore, the elastic hook, elastic buckle, and movable inner cover are integrated into one unit, which not only reduces the complexity of parts assembly but also avoids misfitting situations in the engagement components, ensuring smooth and stable engagement over a long period. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the cup lid snapping into place according to this utility model.
[0013] Figure 3 This is a schematic diagram of the cup lid of this utility model in the open state.
[0014] Figure 4 This is a schematic diagram of the fixed inner cover structure of this utility model.
[0015] Figure 5 This is a schematic diagram of the movable inner cover structure of this utility model.
[0016] Reference numerals: 1. Cup body; 11. Reducing diameter section; 2. Cup lid; 21. Outer cover; 211. Groove; 22. Fixed inner cover; 221. Beveled surface; 222. Fixed guide tube; 223. Through port; 23. Movable inner cover; 231. Elastic hook; 232. Movable guide tube; 233. Elastic buckle; 234. Air hole; 235. Barb; 24. Button; 241. Core tube; 242. Expanded diameter flange; 25. Sealing ring; 26. Vent plug; 261. Rubber head. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] A stable, quick-opening cup, such as Figure 1-3 As shown, it includes a cup body 1 and a cup lid 2. The top of the cup body 1 has a cup mouth, and a tapered portion 11 is provided around the cup mouth of the cup body 1.
[0019] The cup lid 2 includes an outer lid 21, an inner lid 22 fixedly installed inside the outer lid 21, and a movable inner lid 23 located below the fixed inner lid 22. A fixed guide tube 222 is integrally fixed in the middle of the fixed inner lid 22, and a movable guide tube 232 is integrally fixed in the middle of the movable inner lid 23. The movable guide tube 232 extends upward through the fixed guide tube 222. The side of the movable guide tube 232 has a notch, and an elastic buckle 233 is fixed inside the notch. The elastic buckle 233 protrudes from the side of the movable guide tube 232 and is located above the fixed guide tube 222. The bottom of the elastic buckle 233 is flat and the top is an outwardly inclined surface. A first compression spring is provided between the movable inner lid 23 and the fixed inner lid 22. The first compression spring applies downward pressure to the movable inner lid 23, causing the elastic buckle 233 to engage with the top of the fixed guide tube 222.
[0020] The movable inner cover 23 has a raised elastic hook 231 on its outer periphery, and the inner side of the fixed inner cover 22 has a beveled part 221. The beveled part 221 presses against the elastic hook 231 to engage with the reduced diameter part 11, so that the cup lid 2 is fixed at the cup mouth. The bottom periphery of the movable inner cover 23 has a sealing ring 25. The sealing ring 25 presses against the top of the cup mouth to achieve a seal on the cup mouth.
[0021] A slot 211 is provided through the center of the outer cover 21. The button 24 is inserted into the slot 211. The bottom edge of the button 24 has an enlarged rim 242. A third compression spring is provided between the button 24 and the fixed inner cover 22. The third compression spring applies an upward elastic force to the button 24, so that the enlarged rim 242 abuts against the bottom of the slot 211, keeping the top surface of the button 24 flush with the top surface of the outer cover 21. The bottom of the button 24 is cylindrical and is adapted to slide around the periphery of the moving guide cylinder 232. A chamfer is provided on the inner side of the cylindrical bottom opening of the button 24. The chamfer corresponds to the inclined surface of the top of the elastic buckle 233.
[0022] The opening and closing process of cup lid 2 is as follows: The top of the fixed guide tube 222 is engaged by the elastic buckle 233, so that the movable inner cover 23 compresses the first compression spring and keeps it close to the fixed inner cover 22. In this state, the inclined part 221 tilts inward to press against the elastic hook 231, so that the elastic hook 231 engages with the reduced diameter part 11, thereby stably fixing the cup lid 2 to the cup mouth and keeping the sealing ring 25 pressing against the cup mouth to achieve a sealing effect. When opening the cup lid 2, press the button 24 downwards against the elastic force of the third compression spring. The chamfer at the bottom of the button 24 abuts against the inclined surface at the top of the elastic buckle 233, causing the elastic buckle 233 to retract towards the inside of the moving guide cylinder 232, releasing the engagement between the elastic buckle 233 and the fixed guide cylinder 222. At this time, the first compression spring releases its elastic force, causing the movable inner cover 23 to move away from the fixed inner cover 22, releasing the pressure of the inclined surface 221 on the elastic hook 231. The elastic hook 231 elastically expands and resets, releasing the engagement with the reduced diameter part 11, allowing the cup lid 2 to separate from the cup body 1 and opening the cup mouth. When the cup lid 2 is closed again, the outer lid 21 is placed over the outside of the cup opening, the sealing ring 25 is attached to the top of the cup opening, and the cup lid 2 is pressed down, so that the movable inner lid 23 overcomes the elastic force of the first compression spring and gets closer to the fixed inner lid 22. At this time, the movable guide tube 232 simultaneously passes through the fixed guide tube 222 upward. During this process, the inclined surface 221 presses against the elastic hook 231 and gradually closes and engages with the reduced diameter part 11. When the elastic hook 233 passes through the fixed guide tube 222 upward, it pops out again and engages with the top of the fixed guide tube 222. With the elastic force of the first compression spring, the position of the movable inner lid 23 and the fixed inner lid 22 is maintained, and the inclined surface 221 is kept pressing against the elastic hook 231 and engaging with the reduced diameter part 11, thus sealing the cup lid 2 with the cup opening.
[0023] like Figure 5 As shown, multiple elastic hooks 231 and elastic buckles 233 are distributed in a ring, forming a uniform multi-point engagement, which improves the stability of the cup lid 2 when it is locked to the cup opening.
[0024] like Figure 2 , Figure 3 As shown, the cylindrical structure at the bottom of the button 24 is slidably sleeved around the periphery of the moving guide cylinder 232. The cylindrical structure of the button 24 has a core cylinder 241 inside. The core cylinder 241 is adapted to slide into the inner side of the moving guide cylinder 232, so that the button 24 and the moving guide cylinder 232 form an inner and outer guide insertion connection, which improves the stability of the vertical movement of the button 24, the moving guide cylinder 232 and the movable inner cover 23.
[0025] like Figure 4 , Figure 5As shown, multiple openings 223 are arranged in a ring on the upper surface of the fixed inner cover 22, and multiple barbs 235 are fixed in a ring on the upper surface of the movable inner cover 23. The barbs 235 are aligned with the openings 223 one by one. The barbs 235 slide upward through the openings 223. Through the sliding guide of the barbs 235 and the openings 223, the movable inner cover 23 moves stably and vertically. When the cup lid 2 is open, the first compression spring applies a downward elastic force to the movable inner cover 23. Through the locking and limiting of the barbs 235 and the openings 223, the excessive movement of the movable inner cover 23 is prevented from causing the main body of the cup lid 2 inside the movable inner cover 23 to separate.
[0026] like Figure 2 , Figure 3 As shown, an air hole 234 is formed through the surface of the movable inner cover 23, and the air hole 234 passes through the moving guide cylinder 232. An exhaust plug 26 is inserted through the gap in the air hole 234. The bottom end of the exhaust plug 26 has a rubber head 261. A second compression spring is connected between the exhaust plug 26 and the movable inner cover 23. The second compression spring applies an upward elastic force to the exhaust plug 26, so that the rubber head 261 presses against the sealing air hole 234 to ensure the sealing of the cup lid 2 when it is closed. The core cylinder 241 is aligned downward with the exhaust plug 26. When the button 24 is pressed to open the cup lid 2, the core cylinder 241 descends simultaneously to press against the exhaust plug 26, so that the rubber head 261 descends to open the air hole 234, thereby quickly balancing the pressure inside the cup body 1 and making it convenient to open the cup lid 2 quickly.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A stable quick-opening cup, comprising a cup body (1) and a cup lid (2), wherein the outer periphery of the cup mouth of the cup body (1) has a narrowed diameter portion (11), and a button (24) is slidably embedded in the top surface of the cup lid (2), characterized in that, The cup lid (2) includes a fixed outer lid (21) and a fixed inner lid (22). A movable inner lid (23) is provided below the fixed inner lid (22). The fixed inner lid (22) has a fixed guide tube (222) in the middle. The movable inner lid (23) has a movable guide tube (232) that extends upward through the fixed guide tube (222) in the middle. The surface of the movable guide tube (232) has an elastic buckle (233). A first compression spring is provided between the movable inner lid (23) and the fixed inner lid (22). A downward pressure is applied to the movable inner lid (23) so that the elastic buckle (233) engages with the top of the fixed guide tube (222). The outer periphery of the movable inner lid (23) has a raised elastic hook (231). The inner side of the fixed inner lid (22) has a beveled part (221). The beveled part (221) presses against the elastic hook (231) and engages with the reduced diameter part (11).
2. The stable quick-opening cup according to claim 1, characterized in that, The bottom of the button (24) is adapted to slide and fit around the periphery of the moving guide cylinder (232). The bottom opening of the button (24) is chamfered, the top of the elastic buckle (233) has an outward inclined surface, and the bottom of the button (24) presses against the elastic buckle (233) on the inner inclined surface of the moving guide cylinder (232).
3. The stable quick-opening cup according to claim 2, characterized in that, The button (24) has a core tube (241) on its inner side, which is adapted to slide inside the moving guide tube (232).
4. The stable quick-opening cup according to claim 3, characterized in that, The surface of the movable inner cover (23) is provided with an air hole (234) that passes through the moving guide cylinder (232). An exhaust plug (26) is inserted into the air hole (234) with a gap. The bottom end of the exhaust plug (26) has a rubber head (261). A second compression spring is provided between the exhaust plug (26) and the movable inner cover (23) to apply an upward elastic force to the exhaust plug (26) so that the rubber head (261) presses against the sealing air hole (234). The core cylinder (241) is aligned downward with the exhaust plug (26).
5. The stable quick-opening cup according to claim 1, characterized in that, The outer cover (21) has a through slot (211) in the center. The button (24) is inserted into the slot (211). The bottom edge of the button (24) has an enlarged rim (242). A third compression spring is provided between the button (24) and the fixed inner cover (22) to apply an upward elastic force to the button (24) so that the enlarged rim (242) abuts against the bottom of the slot (211).
6. The stable quick-opening cup according to claim 1, characterized in that, The upper surface of the fixed inner cover (22) is provided with multiple openings (223), and the upper surface of the movable inner cover (23) is fixed with multiple barbs (235), which slide upward through the openings (223).
7. The stable quick-opening cup according to claim 1, characterized in that, The elastic hooks (231) and elastic buckles (233) are all distributed in a ring.
8. The stable quick-opening cup according to claim 1, characterized in that, The bottom periphery of the movable inner cover (23) has a sealing ring (25), which presses against the top of the cup opening.
