A locking structure for a thermos cup lid

Abstract

The invention discloses a cup cover locking structure for a thermos cup, comprising an outer cover, an upper cover, a lower cover and a drinking opening, wherein one end of the upper cover is rotatably connected to the cup body, and the lower end of the upper cover is connected to the water sealing cover, the outer cover is rotatably buckled above the upper cover, and a connecting cover is further provided between the outer cover and the upper cover, the upper end of the connecting cover is fixedly connected to the outer cover, the lower end of the connecting cover is slidably embedded in the upper end of the upper cover, and one end of the connecting cover is provided with a buckle, the lower end of the buckle is buckled and locked with the lower cover, the upper cover cannot be opened upward, and after the connecting cover is pushed to slide toward the other end, the buckle is buckled and unlocked with the lower cover, and the upper cover is pushed to open upward; the lower end of the outer cover is provided with an arc-shaped positioning piece, and the positioning piece presses against the other end of the connecting cover after the outer cover is rotated to limit its sliding, so that the connecting cover and the lower cover are in a locked state; the cup cover locking structure of the thermos cup of the invention adopts a rotation unlocking method to replace the existing key unlocking method, and the structural components involved are built into the interior of the thermos cup cover, the surface component structure of the cup cover is reduced, the overall aesthetics is improved, and the operation unlocking structure is simple and comfortable.

Description

Technical Field

[0001] The invention relates to the technical field of thermos cups, and in particular to a locking structure for a thermos cup cover. Background Art

[0002] Thermos cups are generally water containers made of ceramic or stainless steel with a vacuum layer. They have a lid on the top and are tightly sealed. The vacuum insulation layer can delay the heat dissipation of the water or other liquids inside to achieve the purpose of heat preservation. Thermos cups are developed from thermos bottles. The heat preservation principle is the same as that of thermos bottles, but people make bottles into cups for convenience. The water temperature in thermos cups is generally relatively high, so the cup cover is required to be closed during use and have a lock to prevent the cup cover from opening due to misoperation, thereby causing the high temperature water in the thermos cup to scald the user. At present, the cup cover closure has a lock structure to ensure that the cup cover is opened due to misoperation. The traditional lock structure is usually composed of a button and a locking slide. The button of this structure is usually set on the outside of the cup cover. The cup cover is unlocked and opened by pressing a button. Its internal structure is complex and the appearance is not beautiful. Summary of the invention

[0003] In order to overcome the above defects, the present invention provides a novel locking structure for a thermos cup lid, which has a simple structure and is easy to operate, and can improve the overall aesthetics of the thermos cup.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a locking structure for a thermos cup lid, comprising an outer cover, an upper cover, a lower cover and a drinking port, wherein one end of the upper cover is rotatably connected to the cup body, and the lower part of the upper cover is connected to the water sealing cover, the outer cover is rotatably buckled above the upper cover, and a connecting cover is further provided between the outer cover and the upper cover, the upper end of the connecting cover is rotatably connected to the outer cover buckle, and the outer cover rotates relative to the connecting cover, the lower end of the connecting cover is slidably embedded in the upper end of the upper cover, and one end of the connecting cover is provided with a buckle, the lower end of the buckle is buckled and locked with the lower cover, the upper cover cannot be opened upward, and after the connecting cover is pushed to slide toward the other end, the buckle is buckled and unlocked with the lower cover, and the upper cover is pushed to open upward; the lower end of the outer cover is provided with an arc-shaped positioning piece, the outer side edge of the connecting cover is snapped into the card groove on the inner side of the positioning piece, and after the outer cover rotates, the positioning piece is blocked by the positioning piece when the other end of the connecting cover slides, restricting its sliding, so that the connecting cover and the lower cover are in a locked state and cannot be unlocked.

[0005] As a further improvement of the present invention, a positioning groove is provided on the upper cover, and a matching positioning column for limiting the radial displacement of the outer cover is provided below the corresponding outer cover, and card slots are provided on both sides of the positioning groove. Two corresponding sliders are provided below the connecting cover, and the sliders are embedded in the card slots to slide. A return spring is provided between the connecting cover and the positioning groove, so that the connecting cover returns to its original position after sliding without being subjected to force.

[0006] As a further improvement of the present invention, the upper end surface of the connecting cover in contact with the inner side surface of the outer cover is provided with raised ribs, and the upper end surface of the upper cover in contact with the lower end surface of the connecting cover is provided with raised ribs.

[0007] As a further improvement of the present invention, the connecting cover is provided with a spring sheet at one end of the buckle, the lower end of the spring sheet is connected to the connecting cover, and a gap is provided between the side and the connecting cover. A small boss is provided on the spring sheet, and two spaced small grooves corresponding to the inner side surface of the outer cover are provided to cooperate with the small boss. When the outer cover rotates, the small grooves rotate with the outer cover and come into contact with the small boss on the spring sheet to produce a buckling feeling.

[0008] As a further improvement of the present invention, a notch is provided on one side of the card slot for inserting the positioning piece. After the outer cover rotates, the positioning piece enters the card slot through the notch and presses against one side of the notch. When the connecting cover slides, it is blocked by the positioning piece and cannot slide.

[0009] The beneficial effects of the present invention are: the locking structure of the thermos cup lid of the present invention adopts a rotation unlocking method instead of the existing button unlocking method, and the relevant structural components are built into the thermos cup lid, reducing the surface component structure of the cup lid, improving the overall aesthetics, and the operation unlocking structure is simple and comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention;

[0011] Figure 2 It is a schematic diagram of partial disassembly of the structure of the present invention;

[0012] Figure 3 This is one of the cross-sectional views of the structure of the present invention;

[0013] Figure 4 This is the second cross-sectional view of the structure of the present invention;

[0014] Figure 5 It is a schematic diagram of the structure of the upper cover of the present invention;

[0015] In the figure, it is marked as follows: 1-outer cover; 2-upper cover; 3-lower cover; 4-drinking port; 5-water sealing cover; 6-connecting cover; 7-buckle; 8-positioning piece;

[0016] 9-positioning groove; 10-positioning column; 11-card slot; 12-slider; 13-reset spring; 14-rib; 15-spring; 16-small groove; 17-notch. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0018] Figure 1 An embodiment of a locking structure for a thermos cup lid of the present invention is shown, comprising an outer cover 1, an upper cover 2, a lower cover 3 and a drinking port 4, one end of the upper cover 2 is rotatably connected to the cup body, the lower part of the upper cover 2 is connected to a water sealing cover 5, the outer cover 1 is rotatably buckled on the upper part of the upper cover 2, and a connecting cover 6 is further provided between the outer cover 1 and the upper cover 2, the upper end of the connecting cover 6 is rotatably connected to the outer cover 1 by a buckle, and the outer cover 1 rotates relative to the connecting cover 6, the lower end of the connecting cover 6 is slidably embedded in the upper end of the upper cover 2, and a buckle is provided at one end of the connecting cover 6 7, the lower end of the buckle 7 is buckled and locked with the lower cover 3, and the upper cover 2 cannot be opened upward. After pushing the connecting cover 6 to slide toward the other end, the buckle 7 is buckled and unlocked with the lower cover 3, and the upper cover 2 is pushed to open upward; the lower end of the outer cover 1 is provided with an arc-shaped positioning piece 8, and the outer edge of the connecting cover 6 is inserted into the groove on the inner side of the positioning piece 8. After the outer cover 1 is rotated, the positioning piece 8 is blocked by the positioning piece 8 when the other end of the connecting cover 6 slides, thereby limiting its sliding, so that the connecting cover 6 and the lower cover 3 are in a locked state and cannot be unlocked.

[0019] like Figure 2 and 5 As shown, a positioning groove 9 is provided on the upper cover 2, and a matching positioning column 10 for limiting the radial displacement of the outer cover 1 is provided below the corresponding outer cover 1, and card slots 11 are provided on both sides of the positioning groove 9. Two corresponding sliders 12 are provided below the connecting cover 6, and the sliders 12 are embedded in the card slots 11 for sliding. A return spring 13 is provided between the connecting cover 6 and the positioning groove 9, so that the connecting cover 6 returns to its original position without being subjected to force after sliding.

[0020] like Figure 3 As shown, the upper end surface of the connecting cover 6 that contacts the inner side surface of the outer cover 1 is provided with a raised rib 14, and the upper end surface of the upper cover 2 that contacts the lower end surface of the connecting cover 6 is provided with a raised rib 14.

[0021] like Figure 2 and Figure 4 As shown, the connecting cover 6 is provided with a spring sheet 15 at one end of the buckle 7, the lower end of the spring sheet 15 is connected to the connecting cover 6, and a gap is provided between the side and the connecting cover 6, a small boss is provided on the spring sheet 15, and two spaced small grooves 16 cooperating with the small boss are provided on the inner side surface of the corresponding outer cover 1. When the outer cover 1 rotates, the small grooves 16 rotate simultaneously with the outer cover 1 and touch the small boss on the spring sheet 15 to produce a buckling feeling.

[0022] A notch 17 for inserting the positioning piece 8 is provided on one side of the slot 11. After the outer cover 1 rotates, the positioning piece 8 enters the slot 11 through the notch 17 and presses against one side of the notch 17. When the connecting cover 6 slides, it is blocked by the positioning piece 8 and cannot slide.

[0023] When the above structure is in operation, the outer cover 1 is first rotated, and the small boss rotates simultaneously with the outer cover 1 and touches the spring piece 15 to show a locked state. At this time, the positioning piece 8 enters the slot 11 through the notch 17 after the outer cover 1 is rotated, and presses against one side of the notch 17. When the connecting cover 6 slides, it is blocked by the positioning piece 8 and the connecting cover 6 cannot slide. At this time, the outer cover 1 cannot be pushed and the connecting cover 6 is driven to slide along the slot 11; in the opposite operation, after the outer cover 1 rotates in the opposite direction, the positioning piece 8 rotates outward along the notch 17 after the outer cover 1 is rotated, and the connecting cover 6 is in an unlocked state. At this time, the outer cover 1 is pushed to drive the connecting cover to slide along the slot 11, and the buckle 7 is buckled with the lower cover 3 to unlock, and the outer cover 1 and the upper cover 2 are opened along the rotating shaft, and the thermos cup is in a usable state.

Claims

1. A locking structure for a thermos cup lid, characterized in that: The invention comprises an outer cover (1), an upper cover (2), a lower cover (3) and a drinking opening (4), wherein one end of the upper cover (2) is rotatably connected to the cup body, the lower part of the upper cover (2) is connected to a water sealing cover (5), the outer cover (1) is rotatably buckled on the upper part of the upper cover (2), and a connecting cover (6) is provided between the outer cover (1) and the upper cover (2), the upper end of the connecting cover (6) is rotatably connected to the outer cover (1) by a buckle, and the outer cover (1) rotates relative to the connecting cover (6), the lower end of the connecting cover (6) is slidably embedded in the upper end of the upper cover (2), and a buckle (7) is provided at one end of the connecting cover (6), the lower end of the buckle (7) is The upper cover (2) is locked by buckling with the lower cover (3), and cannot be opened upward. After pushing the connecting cover (6) to slide toward the other end, the buckle (7) is buckled with the lower cover (3) to unlock, and the upper cover (2) is pushed upward to open. The lower end of the outer cover (1) is provided with an arc-shaped positioning piece (8), and the outer side edge of the connecting cover (6) is inserted into the slot inside the positioning piece (8). After the outer cover (1) is rotated, the other end of the connecting cover (6) is blocked by the positioning piece (8) when sliding, thereby limiting its sliding, so that the connecting cover (6) and the lower cover (3) are in a locked state and cannot be unlocked. The upper cover (2) is provided with a positioning groove (9), and a matching positioning column (10) for limiting the radial displacement of the outer cover (1) is provided below the corresponding outer cover (1). Slots (11) are provided on both sides of the positioning groove (9). Two corresponding sliders (12) are provided below the connecting cover (6), and the sliders (12) are inserted into the slots (11) for sliding. A return spring (13) is provided between the connecting cover (6) and the positioning groove (9), so that the connecting cover (6) returns to its original position without being subjected to force after sliding. A notch (17) is provided on one side of the slot (11) for the positioning piece (8) to be inserted into. After the outer cover (1) rotates, the positioning piece (8) enters the slot (11) through the notch (17) and abuts against one side of the notch (17). When the connecting cover (6) slides, it is blocked by the positioning piece (8) and the connecting cover (6) cannot slide. The connection cover (6) is provided with a spring sheet (15) at one end of the buckle (7), the lower end of the spring sheet (15) is connected to the connection cover (6), and a gap is provided between the side surface and the connection cover (6).

2. The locking structure for a thermos cup lid according to claim 1, characterized in that: The upper end surface of the connecting cover (6) that contacts the inner side surface of the outer cover (1) is provided with a raised rib (14), and the upper end surface of the upper cover (2) that contacts the lower end surface of the connecting cover (6) is provided with a raised rib (14).

3. The locking structure for a thermos cup lid according to claim 1, characterized in that: A small boss is provided on the spring piece (15), and two small grooves (16) are provided on the inner side surface of the corresponding outer cover (1) to cooperate with the small boss. When the outer cover (1) rotates, the small grooves (16) rotate with the outer cover (1) and contact with the small boss on the spring piece (15) to produce a buckling feeling.

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