A structure to prevent accidental opening of a double-sided drinking cup lid

Abstract

This utility model discloses an anti-accidental opening structure for a double-sided drinking cup lid, comprising a lid base, a middle lid, and an upper lid. The middle lid has a lower locking tongue on its front side, which engages with a lower elastic button latch on the front side of the lid base. The upper lid has an upper locking tongue on its front side, which engages with an upper elastic button latch on the front side of the middle lid. The lower elastic button latch includes a horizontal mounting hole on the lid base, with a first button positioned within the hole. The inner end of the first button has a first engaging protrusion. A linked anti-accidental opening structure is provided between the upper and lower elastic button latches. This anti-accidental opening structure includes a rotating buckle, with a connecting bushing below the rotating buckle. The connecting bushing fits over the first button of the lower elastic button latch. This anti-accidental opening structure fundamentally solves the problem of accidental pressing of the two buttons and is characterized by its simple and practical structure.

Description

Technical Field

[0001] This utility model relates to a double drinking cup lid, specifically a double drinking cup lid anti-accidental opening structure. Background Technology

[0002] Currently, there is a type of cup lid with dual drinking spouts on the market, which mainly consists of a cup lid base, a middle lid, and a top lid. The cup lid base has a direct drinking spout and a spout outlet on its upper part. The middle lid is positioned above the cup lid base, and its rear side is hinged to the rear side of the cup lid base. The front side of the middle lid has a downward-facing lower locking tab, which engages with a lower elastic button latch on the front side of the cup lid base. The middle lid has an air inlet and a second drinking spout, in which a spout is located. The lower end of the spout passes through the second drinking spout and seals against the periphery of the spout outlet. The top lid is positioned above the middle lid, and its rear side is hinged to the rear side of the middle lid. The front side of the top lid has a downward-facing upper locking tab, which engages with an upper elastic button latch on the front side of the middle lid.

[0003] When in use, pressing the upper button's elastic buckle structure will open the upper cover relative to the middle cover, allowing you to drink through the spout. Alternatively, pressing the lower button's elastic buckle structure will open the middle cover along with the upper cover relative to the cup lid base, allowing you to drink directly from the drinking spout on the cup lid base.

[0004] Neither the upper nor lower button spring-loaded latch structure has a corresponding anti-accidental opening mechanism. This inevitably leads to accidental pressing during carrying or use, resulting in leakage and causing great inconvenience to actual use. Utility Model Content

[0005] To address the aforementioned problems, this utility model designs an anti-accidental opening structure for a double-sided drinking cup lid. It incorporates a linked anti-accidental opening structure in both the upper and lower button elastic latch structures, which fundamentally solves the problem of accidental pressing of the two buttons and features a simple and practical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An anti-accidental opening structure for a double-sided drinking cup lid includes a lid base, a middle lid, and a top lid. The middle lid is positioned above the lid base, and its front side has a downward-facing lower locking latch that engages with a lower elastic button latch structure on the front side of the lid base. The top lid is positioned above the middle lid, and its front side has a downward-facing upper locking latch that engages with an upper elastic button latch structure on the front side of the middle lid. The lower elastic button latch structure includes a horizontal mounting hole with a front opening on the front side of the lid base, in which a first button is positioned. The outer end of the first button has a pressing part, and the inner end of the first button has a part that can be detachably engaged with the lower locking latch. The first engaging protrusion is characterized in that: a linked anti-accidental opening structure is provided between the upper elastic button latch structure and the lower elastic button latch structure. The anti-accidental opening structure includes a rotating buckle, and a connecting bushing is provided below the rotating buckle. The connecting bushing is fitted over the first button of the lower elastic button latch structure. A limiting protrusion is provided on the hole wall of the connecting bushing. A axial guide groove is provided on the first button. When the rotating buckle rotates around the first button to completely cover the upper elastic button latch structure, the limiting protrusion is misaligned with the axial guide groove on the first button. When the rotating buckle rotates to completely separate from the upper elastic button latch structure, the limiting protrusion corresponds to the axial guide groove on the first button.

[0008] More specifically, the inner end of the inner hole of the aforementioned connecting bushing is provided with an annular stop protrusion, and a return spring is provided between the stop protrusion and the pressing part of the first button. The return spring has a pre-compression amount so that the first button always tends to move outward, and at the same time, the reaction force of the return spring makes the rotating buckle tightly fit against the opening of the transverse mounting hole.

[0009] More specifically, the aforementioned rotating buckle has two spaced positioning grooves on the inner end face of the connecting bushing, and a positioning protrusion is provided on the transverse mounting hole between the two positioning grooves. Under the mutual limiting of the positioning protrusion and the two positioning grooves, the rotation range of the rotating buckle is limited to the two positioning grooves. When the positioning protrusion enters the two positioning grooves, it corresponds to the locking and unlocking states of the first button, respectively.

[0010] More specifically, the two positioning grooves mentioned above are provided with transition slopes on opposite sides to facilitate the sliding out of the positioning protrusion.

[0011] More specifically, a limiting pin is provided in the middle of the aforementioned transverse mounting hole, and the first button is provided with an axial movement gap at the position corresponding to the limiting pin. The first button can only move axially inward and outward within the range of the axial movement gap.

[0012] More specifically, the aforementioned upper elastic button buckle structure includes an assembly hole on the front side of the middle cover, in which a second button is installed. The outer end of the second button is provided with a force-bearing part, and the inner end of the second button is provided with a second engagement protrusion that can be detachably engaged with the upper locking tongue. At the same time, a mounting post is provided below the inner side of the force-bearing part, and a small spring is provided between the mounting post and the assembly hole. The small spring has a pre-compression amount so that the second button always has a tendency to move outward.

[0013] More specifically, a positioning pin is provided in the middle of the above-mentioned assembly hole, and the second button is provided with an axial movement gap at the position corresponding to the positioning pin. The second button can only move axially inward and outward within the range of the axial movement gap.

[0014] More specifically, the cup lid base is equipped with a drinking spout and a spout outlet.

[0015] More specifically, the rear side of the aforementioned middle cover is hinged to the rear side of the cup lid base.

[0016] More specifically, the aforementioned middle cover is provided with an air inlet and a second drinking inlet. A suction nozzle is provided in the second drinking inlet, and the bottom of the lower end of the suction nozzle passes through the second drinking inlet and is sealed to the periphery of the water outlet of the suction nozzle.

[0017] More specifically, the rear side of the upper cover is hinged to the rear side of the middle cover.

[0018] This invention features a linked anti-accidental opening structure between the lower and upper elastic button latches. When the rotating buckle covers the upper elastic button latch, the second button on it becomes inoperable, while the first button in the lower elastic button latch is locked, effectively preventing accidental operation during carrying or use. When the rotating buckle completely separates from the upper elastic button latch, the second button on the upper elastic button latch is exposed, allowing for pressing to open the lid. Simultaneously, the first button in the lower elastic button latch is released, allowing for pressing to open the lid as well, thus enabling normal opening and drinking from the cup. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of this utility model;

[0020] Figure 2 A cross-sectional view of this utility model;

[0021] Figure 3 A three-dimensional structural diagram of this utility model after removing the first button, the second button, and the rotating buckle;

[0022] Figure 4 A three-dimensional structural diagram of the rotating buckle of this utility model;

[0023] Figure 5 A three-dimensional structural diagram of the first button of this utility model;

[0024] Figure 6 A three-dimensional structural diagram of the second button of this utility model;

[0025] in,

[0026] 1—Cup lid base; 11—Direct drinking spout; 12—Spout water outlet;

[0027] 2—Middle cover, 21—Air inlet, 22—Second drinking spout, 23—Sip nozzle, 24—Lower locking tongue;

[0028] 3—Top cover, 31—Upper locking tab;

[0029] 4—Lower elastic button snap-fit ​​structure; 41—Horizontal mounting hole; 411—Positioning protrusion; 42—First button; 421—Pressing part; 422—First engaging protrusion; 423—Axial movement clearance; 424—Axial guide groove; 43—Limit pin; 44—Reset spring.

[0030] 5—Upper elastic button snap-fit ​​structure, 51—Assembly hole, 52—Second button, 521—Force-applying part, 522—Second engaging protrusion, 5211—Mounting post, 523—Axial movement clearance, 53—Small spring, 54—Positioning pin;

[0031] 6—Rotary buckle, 61—Connecting bushing, 611—Limiting protrusion, 612—Stop protrusion, 613a, 613b—Positioning groove, 6131—Transition slope. Detailed Implementation

[0032] like Figure 1-6 As shown, a structure for preventing accidental opening of a double-sided drinking cup lid includes a lid base 1, a middle lid 2, and an upper lid 3.

[0033] The cup lid base 1 is provided with a drinking spout 11 and a sippy outlet 12 on the top.

[0034] The middle cover 2 is located above the cup lid base 1. The middle cover 2 is provided with an air inlet 21 and a second drinking spout 22. A sip nozzle 23 is provided in the second drinking spout 22. The bottom of the lower end of the sip nozzle 23 passes through the second drinking spout 22 and is sealed to the periphery of the water outlet hole 12 of the sip nozzle.

[0035] The rear side of the middle cover 2 is hinged to the rear side of the cup lid base 1. The front side of the middle cover 2 is provided with a lower locking tongue 24 facing downward. The locking hole on the lower locking tongue 24 is engaged with the lower elastic button buckle structure 4 on the front side of the cup lid base 1.

[0036] The lower elastic button buckle structure 4 includes a horizontal mounting hole 41 with a front opening on the front side of the cup lid base 1. A first button 42 is provided in the horizontal mounting hole 41. The outer end of the first button 42 is provided with a pressing part 421. The inner end of the first button 42 is provided with a first engaging protrusion 422 that can be detachably engaged with the locking hole on the lower locking tongue 24.

[0037] A limiting pin 43 is provided in the middle of the transverse mounting hole 41, and the first button 42 is provided with an axial movement gap 423 at the position corresponding to the limiting pin 43. When pressed by a finger, the first button 42 can only move axially inward and outward within the range of the axial movement gap 423.

[0038] The upper cover 3 is positioned above the middle cover 2. The rear side of the upper cover 3 is hinged to the rear side of the middle cover 2. The front side of the upper cover 3 is provided with an upper locking tongue 31 facing downwards. The upper locking tongue 31 is engaged with the upper elastic button buckle structure 5 on the front side of the middle cover 2.

[0039] The upper elastic button buckle structure 5 includes an assembly hole 51 on the front side of the middle cover 2. A second button 52 is installed in the assembly hole 51. The outer end of the second button 52 is provided with a force part 521. The inner end of the second button 52 is provided with a second engagement protrusion 522 that can be detachably engaged with the locking hole of the upper locking tongue 31. At the same time, a mounting post 5211 is provided below the inner side of the force part 521. A small spring 53 is provided between the mounting post 5211 and the bottom of the assembly hole. The small spring 53 has a pre-compression amount so that the second button 52 always has the tendency to move outward, that is, the second button 52 is always in the pop-out state.

[0040] A positioning pin 54 is provided in the middle of the assembly hole 51, and the second button 52 is provided with an axial movement gap 523 at the position corresponding to the positioning pin 54. When pressed by a finger, the second button 52 can only move axially inward and outward within the range of the axial movement gap 523.

[0041] An interlocking anti-accidental opening structure is provided between the upper elastic button latch structure 5 and the lower elastic button latch structure 4.

[0042] The anti-accidental opening structure includes a rotating buckle 6, and a connecting bushing 61 is provided below the rotating buckle 6. The connecting bushing 61 is fitted outside the first button 42 of the lower elastic button buckle structure 4. The entire rotating buckle 6 can rotate relative to the first button 42 within a certain range through the connecting bushing 61.

[0043] The connecting bushing 61 has a limiting protrusion 611 on its hole wall, and the first button 42 has an axial guide groove 424. During use, when the rotating buckle 6 rotates around the first button 42 until it completely covers the upper elastic button latch structure 5, the limiting protrusion 611 on the rotating buckle 6 is completely misaligned with the axial guide groove 424 on the first button 42. At this time, the first button 42 is axially locked and cannot be pressed even under external force. When it is necessary to open the lid for drinking, the rotating buckle 6 is rotated with a finger until it is completely separated from the upper elastic button latch structure 5. At this time, the limiting protrusion 611 will align with the axial guide groove 424 on the first button 42, thereby releasing the axial lock on the first button 42, and the first button 42 can be pressed normally to open the lid.

[0044] The inner end of the inner hole of the connecting bushing 61 is provided with an annular stop protrusion 612. A return spring 44 is provided between the stop protrusion 612 and the pressing part 421 of the first button 42. The return spring 44 has a pre-compression amount, so that the first button 42 always has a tendency to move outward, thereby keeping the first button 42 in the pop-out state. At the same time, the reaction force generated by the return spring 44 will make the rotating buckle 6 fit tightly against the opening of the transverse mounting hole 41.

[0045] To improve the ease of operation of the rotating buckle 6, a positioning structure for rotation into position is provided on the rotating buckle 6. This positioning structure includes two spaced positioning grooves 613a and 613b on the inner end face of the rotating buckle connecting bushing 61. At the same time, a positioning protrusion 411 is provided on the transverse mounting hole 41 between the two positioning grooves. Under the mutual limiting of the positioning protrusion 411 and the two positioning grooves 613a and 613b, the rotation range of the rotating buckle 6 is limited to the two positioning grooves 613a and 613b. When the positioning protrusion 411 enters one of the positioning grooves 613a, the axial locking of the corresponding first button 42 is activated. When the positioning protrusion 411 enters the other positioning groove 613b, the axial locking of the corresponding first button 42 is released.

[0046] In addition, to improve the flexibility of the rotating buckle 6, the two positioning grooves 613a and 613b are provided with transition slopes 6131 on opposite sides to facilitate the sliding out of the positioning protrusion 411.

[0047] In summary, this utility model features a linked anti-accidental opening structure between the lower elastic button latch structure 4 and the upper elastic button latch structure 5. When the rotating buckle 6 rotates to cover the upper elastic button latch structure 5, the second button 52 on it will be inoperable, while the first button 42 in the lower elastic button latch structure 4 will be locked, thus achieving effective locking and preventing accidental operation during carrying or use, eliminating leakage, and improving the convenience and safety of the water cup. When the rotating buckle 6 is completely separated from the upper elastic button latch structure 5, the second button 52 on the upper elastic button latch structure 5 is exposed, allowing for normal pressing to open the lid. At the same time, the axial lock of the first button 42 in the lower elastic button latch structure 4 is also released, allowing for pressing to open the lid for normal drinking.

[0048] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A double-sided drinking cup lid anti-accidental opening structure, comprising a lid base (1), a middle lid (2), and an upper lid (3), wherein the middle lid (2) is disposed above the lid base (1), and the front side of the middle lid (2) is provided with a lower locking tongue (24), which engages with a lower elastic button latch structure (4) on the front side of the lid base (1); the upper lid (3) is disposed above the middle lid (2), and the front side of the upper lid (3) is provided with an upper locking tongue (31), which engages with the lower elastic button latch structure (4) on the front side of the lid base (1). The upper elastic button latch structure (5) on the front side of the middle cover (2) is engaged with the lower elastic button latch structure (4); the lower elastic button latch structure (4) includes a horizontal mounting hole (41) with a front opening on the front side of the cup lid base (1), a first button (42) is provided in the horizontal mounting hole (41), the outer end of the first button (42) is provided with a pressing part (421), and the inner end of the first button (42) is provided with a first engaging protrusion (422) that can be detachably engaged with the lower locking tongue (24), characterized in that: A linkage anti-accidental opening structure is provided between the upper elastic button buckle structure (5) and the lower elastic button buckle structure (4). The anti-accidental opening structure includes a rotating buckle (6). A connecting bushing (61) is provided below the rotating buckle (6). The connecting bushing (61) is fitted outside the first button (42) of the lower elastic button buckle structure (4). A limiting protrusion (611) is provided on the hole wall of the connecting bushing (61). A axial guide groove (424) is provided on the first button (42). When the rotating buckle (6) rotates around the first button (42) to completely cover the upper elastic button buckle structure (5), the limiting protrusion (611) is misaligned with the axial guide groove (424) on the first button (42). When the rotating buckle (6) rotates to completely separate from the upper elastic button buckle structure (5), the limiting protrusion (611) corresponds to the axial guide groove (424) on the first button (42).

2. The anti-accidental opening structure of a double-drinking cup lid as described in claim 1, characterized in that: The inner end of the inner hole of the connecting bushing (61) is provided with an annular stop protrusion (612). A return spring (44) is provided between the stop protrusion (612) and the pressing part (421) of the first button (42). The return spring (44) has a pre-compression amount so that the first button (42) always has the tendency to move outward. At the same time, the reaction force of the return spring (44) makes the rotating buckle (6) fit tightly against the opening of the transverse mounting hole (41).

3. The anti-accidental opening structure of a double-drinking cup lid as described in claim 1, characterized in that: The rotating buckle (6) has two spaced positioning grooves (613a, 613b) on the inner end face of the connecting bushing (61). At the same time, a positioning protrusion (411) is provided on the transverse mounting hole (41) between the two positioning grooves (613a, 613b). Under the mutual limiting of the positioning protrusion (411) and the two positioning grooves, the rotation range of the rotating buckle (6) is limited to the two positioning grooves. When the positioning protrusion (411) enters the two positioning grooves, it corresponds to the locking and unlocking states of the first button (42).

4. The anti-accidental opening structure of a double-drinking cup lid as described in claim 3, characterized in that: The two positioning grooves (613a, 613b) are provided with transition slopes (6131) on opposite sides to facilitate the sliding out of the positioning protrusion (411).

5. The anti-accidental opening structure of a double-drinking cup lid as described in any one of claims 1-4, characterized in that: A limiting pin (43) is provided in the middle of the transverse mounting hole (41), and the first button (42) is provided with an axial movable gap (423) at the position corresponding to the limiting pin (43). The first button (42) can only move axially inward and outward within the range of the axial movable gap (423).

6. The anti-accidental opening structure of a double-drinking cup lid as described in any one of claims 1-4, characterized in that: The upper elastic button buckle structure (5) includes an assembly hole (51) on the front side of the middle cover. A second button (52) is installed in the assembly hole (51). The outer end of the second button (52) is provided with a force part (521). The inner end of the second button (52) is provided with a second engagement protrusion (522) that can be detachably engaged with the upper locking tongue (31). At the same time, a mounting post (5211) is provided below the inner side of the force part (521). A small spring (53) is provided between the mounting post (5211) and the assembly hole (51). The small spring (53) has a pre-compression amount so that the second button (52) always has the tendency to move outward.

7. The anti-accidental opening structure of a double-drinking cup lid as described in claim 6, characterized in that: A positioning pin (54) is provided in the middle of the assembly hole (51), and the second button (52) is provided with an axial movement gap (523) at the position corresponding to the positioning pin (54). The second button (52) can only move axially inward and outward within the range of the axial movement gap (523).

8. The anti-accidental opening structure of a double-drinking cup lid as described in any one of claims 1-4, characterized in that: The cup lid base (1) is provided with a drinking spout (11) and a sippy outlet (12) on the top.

9. The anti-accidental opening structure of a double-drinking cup lid as described in any one of claims 1-4, characterized in that: The rear side of the middle cover (2) is hinged to the rear side of the cup lid base (1), and the rear side of the upper cover (3) is hinged to the rear side of the middle cover (2).

10. The anti-accidental opening structure of a double-drinking cup lid as described in claim 8, characterized in that: The middle cover (2) is provided with an air inlet (21) and a second drinking port (22). A suction nozzle (23) is provided in the second drinking port (22). The bottom of the lower end of the suction nozzle (23) passes through the second drinking port (22) and is sealed to the periphery of the water outlet hole (12) of the suction nozzle.

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