An inner buckle type self-locking vacuum quick-opening cup
Patent Information
- Application Number
- CN202522485722.7
- 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
The buttons on existing quick-opening cups are exposed, making the lid easy to open accidentally due to collisions or squeezing, and they lack an effective locking function.
An internally locking vacuum quick-opening cup was designed. By setting a right-angle groove on the outer wall of the button and setting a locking ring and a handle inside the cup lid, the button is restricted from moving down. Combined with the internal locking structure of multiple claws and the cup mouth, a safe and reliable opening and closing operation is achieved. Air holes and exhaust plugs are set on the surface of the inner lid to quickly balance the pressure.
This effectively prevents accidental opening caused by button presses, improves the stability and sealing of the lid, and ensures safety and ease of use.
Smart Images

Figure CN224924890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water cups, and in particular to an internally locking self-locking vacuum quick-opening cup. Background Technology
[0002] Most instant-opening cups on the market use a button on the top of the lid to activate a latching mechanism inside the lid, allowing for one-button opening and quick and easy opening of the lid.
[0003] The quick-opening cup relies on the button to directly drive the buckle movement to open the cup lid. However, the button (22) is directly exposed and lacks locking control. When the cup is put in a bag or taken by a child, it is very easy for the button to be triggered due to accidental collision or squeezing, causing the cup lid to open unexpectedly and leak water. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this invention is to provide an internally locking self-locking vacuum quick-opening cup, which solves the problem that the exposed buttons on current quick-opening cups lack locking functionality, making it easy for accidental button presses to cause the cup lid to open unexpectedly.
[0005] The technical solution of this utility model is as follows: An internally locking vacuum quick-opening cup includes a cup body and a cup lid. The cup lid has an expansion locking member inside that engages with the cup opening. A button is slidably embedded downwards from the top surface of the cup lid, and the button abuts against the expansion locking member. The outer wall of the button has a right-angled groove, one end of which extends vertically and the other end extends horizontally with a twist. A locking ring is rotatably arranged inside the cup lid around the outer periphery of the button. The inner side of the locking ring has a handle that inserts into the right-angled groove. The locking ring is connected to a protruding handle that protrudes from the top surface of the cup lid. An arc-shaped groove is formed on the top of the cup lid, and the protruding handle is located in the arc-shaped groove.
[0006] Preferably, the cup body has a narrowed diameter section on the inner side of the cup mouth, and the inner wall of the cup body has a constricted opening section. The cup lid includes an outer lid and an inner lid that are fixed in position. The bottom of the inner lid has a sealing ring. The outer lid is fitted onto the outside of the cup mouth, and the inner lid is inserted into the inside of the cup mouth so that the sealing ring presses against and seals the constricted opening section.
[0007] Preferably, the expansion latch includes multiple latches that slide radially within the inner cover. A first compression spring is provided between the latches and the inner cover to push the latches to expand outwards from the inner cover and latch onto the bottom of the reduced diameter portion. The button has a slanted handle on its periphery. The top outer side of the latches abuts against the inner slanted surface of the slanted handle. The bottom of the latching end of the latch is provided with a rounded corner, and the upper edge of the reduced diameter portion is provided with a chamfer.
[0008] Preferably, the inner cover has an upwardly extending shaft, the button is vertically slidably inserted into the shaft, and a second compression spring is connected between the button and the inner cover to push the button flush with the top surface of the cup lid.
[0009] Preferably, the inner cover has a through-hole on its central surface, and an exhaust plug is inserted into the air hole. The bottom of the exhaust plug has a rubber head. A third compression spring is connected between the exhaust plug and the inner cover to push the exhaust plug upward so that the rubber head presses upward to seal the air hole. The bottom of the button is fixed with a pressure handle, which is aligned downward with the exhaust plug.
[0010] Preferably, a retaining ring is vertically slidably disposed between the outer cover and the inner cover, and the top periphery of the inner cover has a retaining edge. A fourth compression spring is disposed between the retaining ring and the retaining edge to push the retaining ring downward against the top of the cup mouth. The retaining ring is fixed with a retaining hook that extends upward beyond the retaining edge.
[0011] The beneficial effects of this utility model are as follows: 1. This utility model features a right-angled groove on the button surface, with a rotatable handle engaging at the horizontal part of the right-angled groove, preventing the button from being pressed down and effectively avoiding accidental opening of the cup lid due to accidental button contact, making it safer and more reliable to use.
[0012] 2. This utility model is equipped with multiple latches that expand inward to form an inward locking connection with the cup mouth hook, which makes the connection strength between the cup lid and the cup body high, ensuring that the cup lid has good stability and sealing in the locked state. By pressing the button, the latches are pushed to retract and release the locking, so as to quickly open the cup lid and facilitate one-handed operation.
[0013] 3. This utility model has a through-hole on the inner surface of the lid. The air hole is sealed by the rubber head at the bottom of the vent plug. When the button is pressed to open the lid, the handle presses down on the vent plug at the same time, and the rubber head descends to open the air hole, quickly balancing the pressure inside the cup and making the lid open faster and smoother. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the convex handle of this utility model on the surface of the cup lid.
[0016] Figure 3 This is a schematic diagram of the expansion snap-fit assembly and the cup mouth snap-fit structure of this utility model.
[0017] Figure 4 This is a schematic diagram of the expansion snap-fit assembly and the separation structure of the cup mouth of this utility model.
[0018] Figure 5 This is a schematic diagram of the locking ring connecting handle and protruding handle structure of this utility model.
[0019] Figure 6 This is a schematic diagram of the button structure of this utility model.
[0020] Figure 7 This is a schematic diagram of the inner cover structure of this utility model.
[0021] Figure 8 This is a schematic diagram of the retaining ring structure of this utility model.
[0022] Figure 9 This is a schematic diagram of the latch structure of this utility model.
[0023] Reference numerals: 1. Cup body; 11. Narrowing section; 12. Narrowing section; 2. Cup lid; 21. Outer cover; 211. Arc-shaped groove; 22. Button; 221. Angled handle; 222. Press handle; 223. Right-angle groove; 23. Inner cover; 231. Shaft sleeve; 232. Retaining edge; 233. Air hole; 24. Sealing ring; 25. Retaining ring; 251. Retaining hook; 26. Claw; 27. Exhaust plug; 28. Locking ring; 281. Clamp handle; 282. Protruding handle. Detailed Implementation
[0024] 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.
[0025] A type of internally locking self-locking vacuum quick-opening cup, such as Figure 1 , Figure 2 As shown, the cup includes a cup body 1 and a cup lid 2. The top of the cup body 1 has a cup opening. An expansion connector is provided inside the cup lid 2. When the cup lid 2 is placed on the cup opening, it is connected to the cup body 1 by the expansion connector in an inward expansion manner. The opening and closing action of the expansion connector is that the button 22 slides down from the top surface of the cup lid 2 and is inserted into it. The bottom of the button 22 abuts against the expansion connector. Pressing down the button 22 drives the expansion connector to open.
[0026] Button 22 is exposed on the surface of cup lid 2 and is easily accidentally pressed, which could cause the expansion latch to open cup lid 2. Therefore, a locking function needs to be added to button 22, as follows: like Figure 2-6As shown, a right-angled groove 223 is formed on the outer wall of the button 22. One end of the right-angled groove 223 extends vertically and the other end extends horizontally with a twist. A locking ring 28 is set inside the cup lid 2 around the periphery of the button 22. A handle 281 is fixed on the inner side of the locking ring 28. The handle 281 is inserted into the right-angled groove 223. The locking ring 28 is also fixed with a protruding handle 282. An arc-shaped groove 211 is formed on the top surface of the cup lid 2. The protruding handle 282 passes through the arc-shaped groove 211 and protrudes from the top surface of the cup lid 2.
[0027] When the cup lid 2 is connected to the cup body 1, the handle 281 is locked in the horizontal part of the right-angle groove 223, which prevents the button 22 from moving down to touch the expansion connector, thereby preventing accidental opening of the cup lid 2 by accidentally touching the button 22. When opening the cup lid 2, push the protruding handle 282 with your finger to rotate the locking ring 28 and the latch 281, so that the latch 281 moves to align with the vertical part of the right-angle groove 223. At this time, you can press down the button 22 to unlock and open the cup lid 2.
[0028] The expansion connector uses an inward expansion method to engage with the cup opening as follows: like Figure 3 , Figure 4 As shown, the inner side of the cup body 1 has a narrowed diameter portion 11, and the inner wall of the cup body 1 has a constricted opening portion 12. The cup lid 2 includes an outer lid 21 and an inner lid 23 fixed inside the outer lid 21. A sealing ring 24 is fitted onto the bottom of the inner lid 23. The outer lid 21 is fitted onto the outside of the cup opening, and the inner lid 23 is inserted into the inside of the cup opening, so that the sealing ring 24 presses against the sealing constricted opening portion 12, thereby achieving a sealed connection between the cup lid 2 and the cup body 1.
[0029] like Figure 3-9 As shown, the expansion latch includes multiple latches 26, which are right-angled and are equidistantly distributed in a ring inside the inner cover 23. The inner cover 23 has an opening on its side wall. The latches 26 slide radially and slide into the opening on the side wall of the inner cover 23. A first compression spring is provided between the latches 26 and the inner cover 23. The first compression spring applies a spring force to the latches 26 in the direction of the outer periphery of the inner cover 23. The horizontal part of each latch 26 protrudes from the opening and is latched to the bottom of the reduced diameter part 11 in an expanding manner, so that the cup lid 2 is fastened to the cup mouth and the sealing ring 24 is kept pressing against the sealing closing part 12.
[0030] The outer side of the vertical end of the latch 26 is beveled. The outer side of the button 22 is fixed to the beveled handle 221. The outer side of the top of the latch 26 presses against the inner beveled side of the beveled handle 221. By pressing the button 22, the beveled handle 221 is driven to descend. The beveled side of the beveled handle 221 presses against the latch 26, causing it to overcome the elastic force and retract towards the center, thus releasing the engagement between the horizontal end of the latch 26 and the reduced diameter part 11 and opening the cup lid 2.
[0031] like Figure 3 , Figure 4As shown, a rounded corner is provided at the bottom of the snap-fit end of the snap claw 26, and a chamfer is provided on the upper edge of the reduced diameter part 11. When the cup lid 2 is put back on the cup mouth, the cup lid 2 is pressed down. The rounded corner of the snap claw 26 abuts against the chamfered slope of the reduced diameter part 11, causing the snap claw 26 to retract inward. After the snap claw 26 passes the reduced diameter part 11, the elastic force causes the snap claw 26 to automatically expand and snap into the lower part of the reduced diameter part 11, thus conveniently and quickly snapping the cup lid 2 into the cup mouth.
[0032] like Figure 3 , Figure 4 As shown, an upwardly extending shaft cylinder 231 is fixed inside the inner cover 23. The button 22 is vertically slidably inserted into the shaft cylinder 231 to keep the button 22 stable and vertically movable. A second compression spring is connected between the button 22 and the inner cover 23. The elastic force of the second compression spring is used to push the button 22 flush with the top surface of the cup lid 2, so that the button 22 can quickly return to its original position after being pressed.
[0033] like Figure 3 , Figure 4 , Figure 8 As shown, a retaining ring 25 is vertically slidably installed in the area between the outer cover 21 and the inner cover 23. The top periphery of the inner cover 23 has an enlarged diameter retaining edge 232. A fourth compression spring is provided between the retaining ring 25 and the retaining edge 232. When the cup lid 2 is engaged with the cup mouth, the elastic force of the fourth compression spring pushes the retaining ring 25 downward to press against the top of the cup mouth. When the retractable claw 26 separates from the reduced diameter part 11 and releases the engagement of the cup lid 2, the elastic force of the fourth compression spring is released. The retaining ring 25 presses against the cup mouth, causing the main body of the cup lid 2 to actively separate from the cup mouth, thus preventing the cup lid 2 from not separating from the cup mouth in time, which would cause the claw 26 to engage with the reduced diameter part 11 again, resulting in the failure of the cup lid 2 to open.
[0034] The retaining ring 25 is fixed with an upwardly extending hook 251. The hook 251 extends upward over the retaining edge 232. When the cup lid 2 is opened, the fourth compression spring pushes the retaining ring 25 to descend relative to the cup lid 2. The hook 251 engages with the retaining edge 232 to prevent the retaining ring 25 from moving too far down and detaching from the cup lid 2.
[0035] like Figure 3 , Figure 4 As shown, an air hole 233 is opened through the center of the inner cover 23. An exhaust plug 27 is inserted through the gap in the air hole 233. A rubber head is fixedly installed at the bottom of the exhaust plug 27. A third compression spring is connected between the exhaust plug 27 and the inner cover 23. The elastic force of the third compression spring pushes the exhaust plug 27 upward, so that the rubber head presses upward against the sealing air hole 233 to ensure the sealing of the cup lid 2. A pressure handle 222 is fixed at the bottom of the button 22. The pressure handle 222 is aligned downward with the exhaust plug 27. When the button 22 is pressed down to release the latch 26 from the reduced diameter part 11, the pressure handle 222 presses downward against the exhaust plug 27 at the same time, and the rubber head descends to open the air hole 233, quickly balancing the pressure inside the cup body 1, making it easy to open the cup lid 2 quickly.
[0036] 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 self-locking vacuum quick-opening cup with an internal snap-fit mechanism, comprising a cup body (1) and a cup lid (2), wherein the cup lid (2) has an expansion snap-fit component that engages with the cup opening, and a button (22) is slidably embedded downward from the top surface of the cup lid (2), the button (22) abutting against the expansion snap-fit component, characterized in that, The outer wall of the button (22) has a right-angled groove (223). One end of the right-angled groove (223) extends vertically and the other end extends horizontally. The inside of the cup lid (2) is provided with a locking ring (28) that rotates around the outer periphery of the button (22). The inner side of the locking ring (28) has a handle (281). The handle (281) is inserted into the right-angled groove (223). The locking ring (28) is connected to a protruding handle (282), which protrudes from the top surface of the cup lid (2).
2. The internally locking self-locking vacuum quick-opening cup according to claim 1, characterized in that, The cup lid (2) has an arc-shaped groove (211) on the top, and the protruding handle (282) is located in the arc-shaped groove (211).
3. The internally locking self-locking vacuum quick-opening cup according to claim 1, characterized in that, The cup body (1) has a narrowed diameter section (11) on the inner side of the cup mouth, and a constricted mouth section (12) on the inner wall of the cup body (1). The cup lid (2) includes an outer lid (21) and an inner lid (23) with fixed positions. The bottom of the inner lid (23) has a sealing ring (24). The outer lid (21) is fitted on the outside of the cup mouth, and the inner lid (23) is inserted into the inside of the cup mouth so that the sealing ring (24) presses against the sealing constricted mouth section (12).
4. The internally locking self-locking vacuum quick-opening cup according to claim 3, characterized in that, The expansion latch includes multiple latches (26) that slide radially within the inner cover (23). A first compression spring is provided between the latches (26) and the inner cover (23) to push the latches (26) to expand and latch onto the bottom of the reduced diameter portion (11) of the inner cover (23). The button (22) has a slanted handle (221) on its periphery. The top outer side of the latches (26) abuts against the inner slanted surface of the slanted handle (221).
5. The internally locking self-locking vacuum quick-opening cup according to claim 4, characterized in that, The bottom of the snap-fit end of the snap-fit claw (26) is provided with a rounded corner, and the upper edge of the reduced diameter part (11) is provided with a chamfer.
6. The internally locking self-locking vacuum quick-opening cup according to claim 3, characterized in that, The inner cover (23) has an upwardly extending shaft (231), the button (22) is vertically slidably inserted into the shaft (231), and a second compression spring is connected between the button (22) and the inner cover (23) to push the button (22) flush with the top surface of the cup lid (2).
7. The internally locking self-locking vacuum quick-opening cup according to claim 3, characterized in that, The inner cover (23) has a through-hole (233) on its central surface. An exhaust plug (27) is inserted into the air hole (233). The bottom of the exhaust plug (27) has a rubber head. A third compression spring is connected between the exhaust plug (27) and the inner cover (23) to push the exhaust plug (27) upward so that the rubber head presses upward against the sealing air hole (233). The bottom of the button (22) is fixed with a pressure handle (222), which is aligned downward with the exhaust plug (27).
8. The internally locking self-locking vacuum quick-opening cup according to claim 3, characterized in that, A retaining ring (25) is vertically slidably disposed between the outer cover (21) and the inner cover (23). The top periphery of the inner cover (23) has a retaining edge (232). A fourth compression spring is disposed between the retaining ring (25) and the retaining edge (232) to push the retaining ring (25) downward against the top of the cup opening.
9. The internally locking self-locking vacuum quick-opening cup according to claim 8, characterized in that, The retaining ring (25) is fixed with a retaining hook (251) that extends upward over the retaining edge (232).
