Inner ring and outer ring rotating self-locking structure and cup cover

Abstract

The utility model discloses an inner and outer ring rotation self-locking structure and a cup lid, the self-locking structure comprises an inner ring main body, a movable switch is slidably installed in a chute of the inner ring main body, an outer ring is rotatably sleeved on the periphery of the inner ring main body, a button is installed in a button hole of the outer ring, and a rotary switch is rotatably installed in an installation cavity on one side of the inner ring main body. The outer teeth of the rotary switch are always engaged with one section of inner teeth of the inner ring of the outer ring under the action of the first elastic reset piece; in a natural state, under the action of the first elastic reset piece, the rotary switch drives the outer ring to be located at a first limit position, the button does not completely correspond to the movable switch, and the button is locked; when the outer ring is rotated, the inner teeth of the outer ring drive the rotary switch to rotate, the button is unlocked, and the movable switch can be pushed to move by pressing the button. The utility model has the advantages that the uncovering and self-locking actions are ingeniously integrated into one action, the structure is simple, the assembly is convenient and fast, and the space is saved.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, and in particular to an inner and outer ring rotating self-locking structure and a cup lid. Background Technology

[0002] Flip-top cups have become popular among consumers due to their one-touch opening mechanism. However, current flip-top cups generally suffer from the following drawbacks during use:

[0003] If the lid is accidentally opened due to forgetting to lock it, the liquid inside the cup will leak. Furthermore, the existing self-locking structure of the flip lid is generally a sliding latch, and the entire self-locking structure is concentrated in the small internal space of the button and latch, resulting in a complex structure, small parts size, and inconvenient assembly. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an inner and outer ring rotating self-locking structure and a cup lid. By setting an inner and outer ring structure that can rotate relative to each other, the opening and self-locking actions are cleverly integrated into one action. The structure is simple, easy to assemble, and saves space.

[0005] This utility model is achieved through the following technical solution:

[0006] A self-locking structure with inner and outer rings includes an inner ring body, a movable switch slidably installed in a groove at the front end of the inner ring body, an outer ring rotatably fitted around the outer ring body, a pressable button installed in a button hole on one side of the outer ring, an installation cavity on one side of the inner ring body, and a rotary switch rotatably installed in the installation cavity. Under the action of a first elastic reset member, the outer teeth of the rotary switch are always engaged with a section of the inner teeth of the inner ring of the outer ring.

[0007] The rotation angle limiting structure limits the circumferential rotation range of the outer ring relative to the inner ring body. The two extreme positions of the outer ring rotation are the first extreme position and the second extreme position. In the natural state, under the action of the first elastic reset member, the rotary switch drives the outer ring to the first extreme position, and the button and the movable switch do not correspond completely, so the button is locked. Rotating the outer ring causes the rotary switch to rotate by the internal teeth of the outer ring, and at the same time the button gradually corresponds completely with the movable switch, the button is unlocked, and the movable switch can be moved by pressing the button.

[0008] As a preferred embodiment of the above-mentioned inner and outer ring rotational self-locking structure, a second elastic reset member is provided between the rear end of the movable switch and the rear wall of the slide groove, and the elastic force of the second elastic reset member makes the movable switch in the front limit position.

[0009] As a preferred embodiment of the above-mentioned inner and outer ring rotational self-locking structure, a limiting rib is also provided on one side of the slide groove at the front end of the inner ring body. In the natural state, the rear end of the button abuts against the front side of the limiting rib.

[0010] As a preferred embodiment of the above-mentioned inner and outer ring rotational self-locking structure, a toggle protrusion is provided on the outer side wall of the outer ring next to the button hole, and the protrusion height of the toggle protrusion relative to the outer side wall of the outer ring is higher than the protrusion height of the button relative to the outer side wall of the outer ring.

[0011] As a preferred embodiment of the above-mentioned inner and outer ring rotation self-locking structure, the first elastic reset element is a torsion spring, a vertical mounting shaft is fixed in the mounting cavity of the inner ring body, the torsion spring and the rotary switch are coaxially mounted on the mounting shaft, and the two ends of the torsion spring press against the limiting groove on the bottom wall of the mounting cavity and the rotary switch, respectively.

[0012] As a preferred embodiment of the above-mentioned inner and outer ring rotation self-locking structure, the rotation angle limiting structure includes a matching circumferential limiting groove and a circumferential limiting protrusion. The circumferential limiting groove blocks and limits the circumferential limiting protrusion at both ends. The circumferential limiting groove is opened on the outer side wall of the inner ring body or the inner side wall of the outer ring. Correspondingly, the circumferential limiting protrusion is set on the inner side wall of the outer ring or the outer side wall of the inner ring body.

[0013] This utility model also discloses a cup lid, which includes a self-locking structure. The self-locking structure is the aforementioned inner and outer ring rotational self-locking structure. A flip cover is rotatably mounted on the inner ring body. The flip cover is closed by engaging with the second engaging part of the flip cover through the first engaging part of the movable switch. When the button is unlocked, pressing the button pushes the movable switch to move, causing the first engaging part of the movable switch to disengage from the second engaging part of the flip cover.

[0014] As a preferred embodiment of the aforementioned cup lid, a drinking component is installed on the inner ring body, and a sealing element is provided on the inner side of the flip lid to seal the opening of the drinking component.

[0015] This invention has the following advantages over the prior art:

[0016] This utility model provides an inner and outer ring rotating self-locking structure and a cup lid. The self-locking structure is achieved by setting an outer ring that can rotate circumferentially around the outer ring body, and setting the outer teeth of the rotary switch to mesh with a section of the inner teeth of the outer ring, thereby realizing the linkage between the rotation of the outer ring and the rotation of the rotary switch; and by driving the button to rotate together through the circumferential rotation of the outer ring, the button is controlled to be locked or not. This ingenious structural design cleverly integrates the opening and self-locking actions into a continuous action. The overall structure is simple and easy to assemble, solving the problems of complexity and difficulty in assembly of traditional cup lid self-locking structures. Attached Figure Description

[0017] Figure 1 This is a perspective view of the cup lid of this utility model.

[0018] Figure 2 This is a perspective view of the flip-top cup of this utility model.

[0019] Figure 3 This is a longitudinal cross-sectional view of the cup lid of this utility model in the closed flip-top state.

[0020] Figure 4 This is a three-dimensional exploded view of the cup lid of this utility model.

[0021] Figure 5 This is a three-dimensional exploded view of the connector of this utility model.

[0022] Figure 6 This is a three-dimensional assembly drawing of the rotary switch and torsion spring of this utility model.

[0023] Figure 7 This is a three-dimensional split view of the outer ring and button of this utility model.

[0024] Figure 8 This is a cross-sectional view of the cup lid of this utility model in the closed flip-top state.

[0025] Figure 9 This is a cross-sectional view of the outer ring of the cup lid of this utility model when rotated counterclockwise to its limit position.

[0026] Figure 10 Is Figure 8 A cross-sectional view after pressing the button.

[0027] Numbered components in the diagram: 1 Inner ring body, 2 Flip cover, 3 Rotating shaft, 4 Slide groove, 5 Movable switch, 6 Return spring, 7 Limiting groove, 8 Limiting protrusion, 9 Outer ring, 10 Button hole, 11 Button, 12 Limiting flange, 13 Toggle protrusion, 14 Mounting cavity, 15 Rotary switch, 16 Torsion spring, 17 Mounting shaft, 18 Limiting groove, 19 Stepped surface, 20 External tooth, 21 Internal tooth, 22 Circumferential limiting groove, 23 Cover plate, 24 Cup body, 25 Limiting rib, 26 Inner fastener, 27 Connector, 28 Mounting boss, 29 Through hole, 30 Nozzle, 31 Straw, 32 Lower limiting flange, 33 Upper limiting flange, 34 Insertion hole, 35 Engaging rib, 36 Engaging groove, 37 Engaging protrusion; 38 Circumferential limiting protrusion Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0029] See Figures 1 to 10This embodiment discloses an inner and outer ring rotational self-locking structure, including an inner ring body 1. A movable switch 5 is slidably installed in a groove 4 at the front end of the inner ring body 1. A second elastic reset member is provided between the rear end of the movable switch 5 and the rear wall of the groove 4. The second elastic reset member can be a reset spring 6. The elastic force of the second elastic reset member keeps the movable switch 5 in the front limit position. When the movable switch 5 is in the front limit position, the front end of the limiting groove 7 opened on the left and right side walls of the groove 4 abuts against the limiting protrusions 8 at the left and right ends of the movable switch 5, thereby limiting the forward movement of the movable switch 5 to the front limit position.

[0030] An outer ring 9 is rotatably fitted around the inner ring body 1. The outer ring 9 can only rotate circumferentially along the inner ring body 1 and cannot move axially. A pressable button 11 is installed in a button hole 10 on one side of the outer ring 9. A limiting flange 12 is provided at the rear end of the button 11 to abut against the inner ring of the outer ring 9 and prevent the button 11 from falling off the outer ring 9. An actuating protrusion 13 is provided on the outer side wall of the outer ring 9, next to the button hole 10. The actuating protrusion 13 is located between the button hole 10 and the internal teeth 21. The protrusion height of the actuating protrusion 13 relative to the outer side wall of the outer ring 9 is higher than the protrusion height of the button 11 relative to the outer side wall of the outer ring 9. In this embodiment, the actuating protrusion 13 is located on the right side of the button hole 10. An installation cavity 14 is opened on one side of the inner ring body 1. A rotary switch 15 is rotatably installed in the installation cavity 14. The rotary switch 15 is reset by a first elastic reset member. Under the action of the first elastic reset member, the outer teeth 20 of the rotary switch 15 are always engaged with a section of the inner teeth 21 of the inner ring 9. The first elastic reset member is a torsion spring 16. A vertical installation shaft 17 is fixed in the installation cavity 14 of the inner ring body 1. The torsion spring 16 and the rotary switch 15 are coaxially mounted on the installation shaft 17, and the two ends of the torsion spring 16 press against the limiting groove 18 on the bottom wall of the installation cavity 14 and the stepped surface 19 of the rotary switch 15, respectively.

[0031] The rotation angle limiting structure limits the circumferential rotation range of the outer ring 9 relative to the inner ring body 1. The two extreme positions of the outer ring 9 are the first extreme position and the second extreme position. In the natural state, under the action of the first elastic reset member, the rotary switch 15 drives the outer ring 9 to the first extreme position. The button 11 does not completely correspond to the movable switch 5. The sliding groove 4 at the front end of the inner ring body 1 is also provided with a limiting rib 25. In the natural state, the rear end of the button 11 abuts against the front side of the limiting rib 25, and the button 11 is locked. When the outer ring 9 is rotated, the inner teeth 21 of the outer ring 9 drive the rotary switch 15 to rotate. At the same time, the button 11 gradually corresponds completely with the movable switch 5, and the button 11 is unlocked. By pressing the button 11, the movable switch 5 can be moved.

[0032] The rotation angle limiting structure includes a matching circumferential limiting groove 22 and a circumferential limiting protrusion 38. The circumferential limiting groove 22 blocks and limits the circumferential limiting protrusion 38 at both ends. The circumferential limiting groove 22 is formed on the outer side wall of the inner ring body or the inner side wall of the outer ring. Correspondingly, the circumferential limiting protrusion 38 is set on the inner side wall of the outer ring or the outer side wall of the inner ring body.

[0033] This embodiment also discloses a cup lid, which includes the aforementioned inner and outer ring rotational self-locking structure. The inner ring body 1 of the self-locking structure serves as the cup lid body. A flip cover 2 is rotatably mounted on the inner ring body 1 via a rotating shaft 3. The flip cover 2 is locked to the inner ring body 1 by engaging the first engaging part of the movable switch 5 with the second engaging part of the flip cover 2. When the button 11 is unlocked, pressing the button 11 pushes the movable switch 5 to move, causing the first engaging part of the movable switch 5 to disengage from the second engaging part of the flip cover 2.

[0034] A drinking component is installed on the inner ring body 1. The drinking component can adopt a spout 30 structure or a direct drinking mouth structure. The lower end of the spout 30 is connected to the straw 31. A sealing element is provided on the inside of the flip cover 2 to seal the mouth of the drinking component.

[0035] To facilitate the installation of the outer ring 9, the inner ring body 1 can be designed as a split structure. For example, the inner ring body 1 can be designed as consisting of inner fasteners 26 and connectors 27 that are fitted together. The inner fasteners 26 and connectors 27 can be fixedly connected by snap-fit. The top center of the inner fastener 26 has an upwardly protruding mounting boss 28, and the top plate of the connector 27 has a through hole 29. The mounting boss 28 of the inner fastener 26 fits perfectly into the through hole 29 of the connector 27, and the drinking water component is pressed onto the mounting boss 28 of the inner fastener 26. The bottom of the inner fastener 26 has a lower limiting flange 32, and the top of the connector 27 has an upper limiting flange 33. The outer side wall of the connector 27, the upper limiting flange 33, and the lower limiting flange 32 together form an annular mounting groove for positioning and installing the outer ring 9, so that the outer ring 9 can only rotate circumferentially and cannot move axially.

[0036] The slide groove 4 and the mounting cavity 14 are respectively provided on the connecting body 27. The top of the connecting body 27 has an insertion hole 34 that communicates with the slide groove 4. The second engaging part of the flip cover 2 includes an engaging rib 35 provided on the inner side of the flip cover 2. The lower section of the engaging rib 35 has an engaging groove 36. The first engaging part of the movable switch 5 is an engaging protrusion 37. When the flip cover 2 is closed, the engaging rib 35 of the flip cover 2 is inserted downward from the insertion hole 34 of the connecting body 27 into the slide groove 4 and engages with the engaging protrusion 37 of the movable switch 5. In order to facilitate the installation of the internal components of the mounting cavity 14, the top end of the mounting cavity 14 of the connecting body 27 is set as an open end, and the open end of the top of the mounting cavity 14 is covered by a cover plate 23. The cover plate 23 can be connected to the connecting body 27 by a snap-fit.

[0037] The aforementioned cup lid and cup body 24 work together to form a flip-top cup. When it is necessary to open the flip-top 2, the operator holds the cup body 24 with their hand, and gently presses the button 11 with their thumb. Since the button 11 is locked, it cannot be pressed. The operator uses the right side of their thumb to press the actuating protrusion 13 on the outer ring 9, and rotates the outer ring 9 counterclockwise by a certain angle until it reaches its limit position. As the outer ring 9 rotates counterclockwise, under the action of the inner teeth 21 of the outer ring 9 meshing with the outer teeth 20 of the rotary switch 15, the outer ring 9 drives the rotary switch 15 to rotate counterclockwise around the mounting shaft 17. As the outer ring 9 rotates counterclockwise, the button 11 rotates with the outer ring 9. When the outer ring 9 rotates counterclockwise to its limit position, the button 11 rotates to the front and is opposite to the movable switch 5. At this time, the button 11 is disengaged from the limiting rib 25, the button 11 is unlocked, and it is in the unlocked state. Keeping the outer ring 9 stationary, press button 11 inward. Button 11 pushes the movable switch 5 backward, causing the first engaging part of the movable switch 5 to disengage from the second engaging part of the flip cover 2. The flip cover 2 automatically opens under the elastic force of the suction nozzle 30, thus achieving automatic opening of the flip cover 2. Then release the thumb from pressing button 11. At this time, the movable switch 5 moves forward to reset under the elastic force of the return spring 6. Release the thumb from the contact of the thumb with the actuating protrusion 13 on the outer ring 9. The outer ring 9 is completely released. At this time, under the elastic force of the torsion spring 16, the rotary switch 15 rotates in the opposite direction to reset. At the same time, the rotary switch 15 drives the outer ring 9 to rotate in the opposite direction to reset, thereby driving the button 11 on the outer ring 9 to reset, and the button 11 is locked again.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking structure for inner and outer ring rotation, comprising an inner ring body, wherein a movable switch is slidably mounted in a groove at the front end of the inner ring body, characterized in that: The inner ring body is rotatably fitted with an outer ring. A button that can be pressed is installed in a button hole on one side of the outer ring. An installation cavity is opened on one side of the inner ring body, and a rotary switch is rotatably installed in the installation cavity. Under the action of the first elastic reset member, the outer teeth of the rotary switch are always engaged with a section of the inner teeth of the outer ring. The rotation angle limiting structure limits the circumferential rotation range of the outer ring relative to the inner ring body. The two extreme positions of the outer ring rotation are the first extreme position and the second extreme position. In the natural state, under the action of the first elastic reset member, the rotary switch drives the outer ring to the first extreme position, and the button and the movable switch do not correspond completely, so the button is locked. Rotating the outer ring causes the rotary switch to rotate by the internal teeth of the outer ring, and at the same time the button gradually corresponds completely with the movable switch, the button is unlocked, and the movable switch can be moved by pressing the button.

2. The inner and outer ring rotational self-locking structure as described in claim 1, characterized in that: A second elastic reset member is provided between the rear end of the movable switch and the rear wall of the slide groove. The elastic force of the second elastic reset member keeps the movable switch in the front limit position.

3. The inner and outer ring rotational self-locking structure as described in claim 1, characterized in that: The inner ring body has a limiting rib on one side of the sliding groove at the front end. In its natural state, the rear end of the button abuts against the front side of the limiting rib.

4. The inner and outer ring rotational self-locking structure as described in claim 1, characterized in that: On the outer side wall of the outer ring, there is a toggle protrusion located next to the button hole. The protrusion height of the toggle protrusion relative to the outer side wall of the outer ring is higher than that of the button relative to the outer side wall of the outer ring.

5. The inner and outer ring rotational self-locking structure as described in claim 1, characterized in that: The first elastic reset component is a torsion spring. A vertical mounting shaft is fixed in the mounting cavity of the inner ring body. The torsion spring and the rotary switch are coaxially mounted on the mounting shaft, and the two ends of the torsion spring press against the limiting groove on the bottom wall of the mounting cavity and the rotary switch, respectively.

6. The inner and outer ring rotational self-locking structure as described in claim 1, characterized in that: The rotation angle limiting structure includes a matching circumferential limiting groove and a circumferential limiting protrusion. The circumferential limiting groove blocks and limits the circumferential limiting protrusion at both ends. The circumferential limiting groove is opened on the outer side wall of the inner ring body or the inner side wall of the outer ring. Correspondingly, the circumferential limiting protrusion is set on the inner side wall of the outer ring or the outer side wall of the inner ring body.

7. A cup lid, the cup lid comprising a self-locking structure, characterized in that: The self-locking structure is the inner and outer ring rotational self-locking structure as described in any one of claims 1 to 6. A flip cover is rotatably mounted on the inner ring body. The flip cover is closed by engaging with the second engaging part of the flip cover through the first engaging part of the movable switch. When the button is unlocked, pressing the button pushes the movable switch to move, causing the first engaging part of the movable switch to disengage from the second engaging part of the flip cover.

8. A cup lid as described in claim 7, characterized in that: The inner ring body is equipped with a drinking water component, and the inside of the flip cover is provided with a sealing element to seal the opening of the drinking water component.

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