Cup cover with self-locking flip cover

Abstract

The utility model discloses a flip cover self-locking type cup cover, which comprises a main cover body, an upper cover body and a pin shaft, the main cover body is provided with a water drinking opening and a first hooking part, the upper cover body comprises a connecting piece, an upper flip cover and a first elastic piece, the connecting piece is arranged inside the upper flip cover, the upper flip cover and the connecting piece can slide relatively, and the pin shaft is arranged on the upper flip cover. One side of the connecting piece is rotationally connected to the main cover body through a pin shaft, the connecting piece rotates around the axis of the pin shaft so that the upper turning cover can be turned upwards to be opened or turned downwards to be closed, a second hooking part corresponding to the first hooking part is fixed in the upper turning cover, and when the upper turning cover covers the main cover body, the upper turning cover covers the drinking opening and the first hooking part. The second hook buckle part is buckled with the first hook buckle part; when the upper turning cover is pushed by external force to move relative to the main cover body, the first hook buckle part and the second hook buckle part are not buckled, the unlocking function and the covering function are integrated on the upper turning cover, force application by the hand is facilitated, external parts are greatly simplified, and the upper turning cover is more attractive.

Description

Technical Field

[0001] The utility model relates to a cup cover, in particular to a flip-top self-locking cup cover. Background Art

[0002] A water cup is a common item in daily life, used to carry water for drinking when thirsty. Typically, a water cup consists of a body and a lid that covers the body to seal the top opening. There are flip-top lids, which include a main lid connected to the body and an upper flap hinged to the main lid. The main lid has a drinking spout at the top, and the upper flap covers the main lid, sealing the drinking spout.

[0003] For example, the direct drinking cup lid disclosed in Chinese utility model patent CN202408222U has a cover body and a flip cover with a rotating shaft, a return spring is provided on the rotating shaft, a water spout extends from the cover body, and the flip cover is provided with a sealing gasket for closing the water spout. The cover body is provided with a button mounting seat, and the button is rotatably set in the mounting seat through a pin. The button is provided with a lock hook and a button spring, and the flip cover is provided with a slot that matches the lock hook. When closing, the flip cover is flipped over, and the flip cover presses the lock hook on the button to retract the button. When the button lock hook enters the slot, the button spring is released, so that the button fastens the flip cover.

[0004] The existing cup lid that locks the flip cover by setting a lock on the cover body has a small button for pressing and unlocking, which is not convenient for the hand to press. Moreover, when the flip cover is closed, the button is exposed to the outside, which is not beautiful and is easily damaged by collision. Utility Model Content

[0005] Based on the above-mentioned cup lid that is locked when the flip cover is closed by a lock buckle externally arranged on the cover body, the button for unlocking is too small and inconvenient to press with the hand. When the cover is closed, the external button is not beautiful and is easily damaged by collision. The utility model provides a flip cover with a self-locking cup lid.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows: a flip-top self-locking cup cover, comprising a main cover body, an upper cover body and a pin shaft, the main cover body being provided with a drinking port and a first hook and buckle portion, the upper cover body comprising a connecting piece, an upper flip cover and a first elastic piece, the connecting piece being installed inside the upper flip cover, and the upper flip cover and the connecting piece being able to slide relative to each other, the first elastic piece being arranged between the upper flip cover and the connecting piece for pushing the upper flip cover to move and reset, one side of the connecting piece being rotatably connected to the main cover body by a pin shaft, the connecting piece being rotated around the axis of the pin shaft so that the upper flip cover can be flipped upward to open or flipped downward to close, a second hook and buckle portion corresponding to the first hook and buckle portion being fixed inside the upper flip cover,

[0007] When the upper flip cover is closed on the main cover body, the upper flip cover covers the drinking port and the first hook portion, and the second hook portion is engaged with the first hook portion; when the upper flip cover is pushed by external force to move relative to the main cover body, the first hook portion and the second hook portion are disengaged.

[0008] A further preferred technical solution of the present invention is: a lifting ring is rotatably connected to the pin shaft, a protrusion is provided on the inner wall of the lifting ring, and a matching groove is provided on the outer wall of the upper flip cover. When the lifting ring is flipped down, the lifting ring surrounds the outer side of the upper flip cover in the closed state to limit the movement of the upper flip cover, and the protrusion is engaged in the groove.

[0009] A further preferred technical solution of the present invention is: a fixing seat is fixed on the main cover body, and the fixing seat is provided with an axial hole for a pin shaft to pass through and be fixed to it, and both ends of the pin shaft extend from both sides of the fixing seat, and both sides of the rear end of the connecting piece are provided with a first connecting part protruding toward the rear side, and the fixing seat is inserted between the two first connecting parts, and a plug-in column is provided on the side of the first connecting part away from the fixing seat, and a first connecting hole is provided through the first connecting part and the plug-in column, and the end portion of the pin shaft extending out is inserted into the first connecting hole, and the pin shaft and the first connecting part can rotate relative to each other, and a connecting sleeve is fixed to the inner side of the two ends of the lifting ring, and the connecting sleeves on both sides can be rotatably sleeved on the outer sides of the plug-in columns on both sides.

[0010] A further preferred technical solution of the present invention is: a notch corresponding to the fixing seat is provided at the rear portion of the upper flip cover, and shielding edges are provided on both sides of the notch, respectively surrounding the first connecting portion and the outer side of the plug-in column on both sides, and the side of the shielding edge away from the notch is connected to the side of the upper flip cover, and a socket opposite to the internal plug-in column is provided on the side, and the connecting sleeves at both ends of the lifting ring are respectively inserted into the sockets on both sides and can be rotatably sleeved on the outer side of the plug-in column, and the sockets have space for relative movement of the connecting sleeves when the upper flip cover and the connecting piece move relative to each other.

[0011] A further preferred technical solution of the present invention is that a second elastic member is provided between the connecting member and the main cover body, and the second elastic member is used to drive the connecting member and the upper flip cover to flip upward when the first hook portion and the second hook portion are disengaged.

[0012] A further preferred technical solution of the present invention is: there are two second hook parts, and the two second hook parts are respectively arranged on the inner walls on both sides of the upper flip cover, and the main cover body is correspondingly provided with the same number of first hook parts, and the main cover body is provided with a support plate corresponding to the first hook parts, and the support plate is fixedly connected to one side of the first hook part.

[0013] A further preferred technical solution of the present utility model is: a receiving groove is provided on the connecting member, and a positioning column is provided on the groove wall of the receiving groove, and the extension direction of the positioning column is parallel to the relative sliding direction of the upper flip cover and the connecting member, and a supporting plate is provided on the inner wall of the upper flip cover, and the supporting plate is inserted into the receiving groove, and the first elastic member is a reset spring, and the reset spring is positioned on the positioning column, one end of the reset spring is against the inner wall of the receiving groove, and the other end of the reset spring is against the supporting plate.

[0014] A further preferred technical solution of the present invention is: two buckle parts distributed on the left and right are fixed in the upper flip cover, and sliding grooves corresponding to the buckle parts are provided on both sides of the connecting piece. The buckle parts are buckled in the corresponding sliding grooves and can slide along the sliding grooves.

[0015] A further preferred technical solution of the present invention is: an air hole is provided on the main cover body, and a sealing member corresponding to the air hole and the drinking port is provided on the connecting member. When the upper flip cover is closed on the main cover body, the upper flip cover covers the drinking port, the first hook portion and the air hole, and the sealing member seals the air hole and the drinking port.

[0016] A further preferred technical solution of the present invention is that the insertion hole is an oblong hole, the length direction of the oblong hole is arranged along the moving direction of the upper flip cover, and the oblong hole is slidably matched with the connecting sleeve.

[0017] The first hook portion and the second hook portion are all integrated in the interior of the flip cover, which greatly simplifies the external parts, makes the appearance of the cup cover more concise and beautiful when the cover is closed, better protects the parts and improves the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0019] Figure 1 The structure of the cup lid when the upper cover is closed Figure 1 ;

[0020] Figure 2 The structure of the cup lid when the upper cover is closed Figure 2 ;

[0021] Figure 3 This is a cross-sectional diagram of the cup lid when the upper flip cover is closed. Figure 1 ;

[0022] Figure 4 This is a cross-sectional diagram of the cup lid when the upper flip cover is closed. Figure 2 ;

[0023] Figure 5 This is a cross-sectional diagram of the back side of the cup lid;

[0024] Figure 6 for Figure 5 A local enlarged view of point A;

[0025] Figure 7 is a cross-sectional schematic diagram of the cup cover when the first hook portion and the second hook portion are in a fastened state;

[0026] Figure 8 is a cross-sectional schematic diagram of the cup cover when the first hook portion and the second hook portion are out of engagement;

[0027] Figure 9 is a structural diagram of the main cover body;

[0028] Figure 10 Schematic diagram of the internal structure of the upper cover;

[0029] Figure 11 Schematic diagram of the external structure of the upper cover;

[0030] Figure 12 It is a structural diagram of the upper flip cover;

[0031] Figure 13 Schematic diagram of the connector structure Figure 1 ;

[0032] Figure 14 Schematic diagram of the connector structure Figure 2 ;

[0033] Figure 15 It is a structural diagram of the lifting ring;

[0034] Figure 16 This is a schematic diagram of the structure of the cup lid when the handle is opened;

[0035] Figure 17 It is a structural diagram when the upper cover is flipped open.

[0036] In the figure: 1, main cover; 2, main body; 3, decorative frame; 4, notch groove; 5, lifting ring; 6, upper flip cover; 7, fixing seat; 8, limiting block; 9, first notch; 10, blocking edge; 11, protrusion; 12, groove; 13, pin; 14, connecting member; 15, first sealing member; 16, drinking spout; 17, drinking spout; 18, first accommodating groove; 19, abutting plate; 20, first elastic member; 21, positioning column; 22, air hole; 23, second sealing member; 24, circular slot; 25, abutting protrusion; 26, first slot; 27, slide groove; 28, buckle portion; 29, elastic plate; 30, first buckle head; 31, shaft hole; 32, second accommodating groove; 33, Second elastic member; 34, first connecting portion; 35, plug-in column; 36, connecting sleeve; 37, limiting edge; 38, plug hole; 39, third accommodating groove; 40, first connecting hole; 41, side; 42, first hook portion; 43, second hook portion; 44, avoidance groove; 45, first clamping slot; 46, first buckle rod; 47, second clamping head; 48, second clamping plane; 49, second guide slope; 50, support plate; 51, second slot; 52, insertion channel; 53, second socket; 54, first clamping block; 55, first guide slope; 56, first clamping plane; 57, incision; 58, second slot; 59, first socket; 60, third slot; 61, inner cavity. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0038] It should be noted that like reference numerals denote like items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0039] Figures 1-17 As shown, the flip-top self-locking cup lid includes a main cover body 1, an upper cover body and a pin shaft 13. A drinking port 17 is provided on the top of the main cover body 1. The upper cover body is rotatably connected to the main cover body 1 through the pin shaft 13. The upper cover body can be flipped upward around the axis of the pin shaft 13 to open or flipped downward to cover the main cover body 1.

[0040] Figure 9 As shown, specifically, the upper surface of the main cover body 1 is provided with an upwardly protruding drinking spout 16, and the upper end of the drinking spout 16 gradually tilts from the side away from the pin shaft 13 to the side close to the pin shaft 13, and the side of the upper end of the drinking spout 16 away from the pin shaft 13 is higher than the side of the upper end of the drinking spout 16 close to the pin shaft 13, and the upper end of the drinking spout 16 is formed with the above-mentioned drinking port 17 for discharging water.

[0041] Figure 10-14 As shown, the upper cover body includes a connecting member 14, an upper flip cover 6 and a first elastic member 20. An inner cavity 61 with an opening downward is formed on the inner side of the upper flip cover 6. The connecting member 14 is installed in the inner cavity 61, and the upper flip cover 6 and the connecting member 14 can slide relative to each other. The first elastic member 20 is arranged between the upper flip cover 6 and the connecting member 14 to push the upper flip cover 6 to move and reset. One side of the connecting member 14 is rotatably connected to the main cover body 1 through a pin shaft 13. The connecting member 14 rotates around the axis of the pin shaft 13 so that the upper flip cover 6 can be flipped upward to open or flipped downward to close.

[0042] Figure 3 、 Figure 4 As shown, the direction in which the connecting member 14 and the upper flip cover 6 move relative to each other is perpendicular to the axis of the pin 13 .

[0043] Figure 2 、 Figure 5 、 Figure 6 As shown, an upwardly protruding fixing seat 7 is fixed to the rear side of the upper surface of the main cover body 1. The fixing seat 7 is provided with an axial hole 31 for the pin 13 to pass through. The pin 13 passes through the axial hole 31 and its ends extend from both sides of the fixing seat 7, fixedly connected to the fixing seat 7. A first connecting portion 34 protruding toward the rear is provided on both sides of the rear end of the connecting member 14. The fixing seat 7 is inserted between the first connecting portions 34 on both sides. The first connecting portion 34 has a first connecting hole 40 extending through it. The protruding end of the pin 13 is inserted into the first connecting hole 40 on the same side. The first connecting portion 34 and the pin 13 are relatively rotatable, allowing the connecting member 14 to be rotatably connected to the main cover body 1. A first notch 9 is provided at the rear of the upper cover 6, corresponding to the fixing seat 7. When the connecting member 14 drives the upper cover 6 to flip up and down around the axis of the pin 13, the first notch 9 is used to avoid the fixing seat 7, so that the fixing seat 7 does not interfere with the rotation of the upper cover 6. The pin 13 is tightly fitted and fixed to the inner wall of the axial hole 31.

[0044] Figure 4 As shown, two snap-fit ​​parts 28 are fixed in the inner cavity 61 of the upper flip cover 6, and the two snap-fit ​​parts 28 are distributed on the left and right sides. Slide grooves 27 corresponding to the snap-fit ​​parts 28 are provided on both sides of the connecting member 14. The snap-fit ​​parts 28 are buckled in the corresponding slide grooves 27 and can slide along the slide grooves 27, so that the connecting member 14 and the upper flip cover 6 are slidably connected together.

[0045] Figure 12 、 Figure 13As shown, the two buckle parts 28 are symmetrically arranged on the top surface of the inner cavity 61, the buckle part 28 includes an elastic plate 29 extending downward from the top surface of the inner cavity 61, and a first buckle head 30 fixed to the lower end of the elastic plate 29. The two elastic plates 29 are parallel to each other. The first buckle head 30 is arranged on the inner side of the elastic plate 29 opposite to the other elastic plate 29. The two sides of the connecting member 14 are provided with first slots 26 corresponding to the two buckle parts 28. The upper surface of the connecting member 14 is provided with a first socket 59 for the buckle part 28 to be inserted into the first slot 26. The first socket 59 is provided on the upper surface of the connecting member 14. The above-mentioned sliding groove 27 is provided on the groove wall of the groove 26, and the elastic plate 29 is inserted into the corresponding first slot 26 from the first socket 59, and the first buckle head 30 at the lower end of the elastic plate 29 is snapped into the sliding groove 27 and slides with the sliding groove 27, so that the connecting member 14 and the upper flip cover 6 are slidingly connected together. At the same time, the front and rear groove walls of the first slot 26 can limit the forward and backward movement of the inserted buckle part 28, thereby limiting the range of relative movement of the connecting member 14 and the upper flip cover 6, and preventing the connecting member 14 and the upper flip cover 6 from sliding away from each other.

[0046] Figure 3 、 Figure 12 、 Figure 13 As shown, the connecting member 14 is provided with a first receiving groove 18, which is opened on the upper surface of the connecting member 14 and is an upwardly opening groove. A positioning post 21 is extended from the groove wall of the first receiving groove 18. The extension direction of the positioning post 21 is parallel to the direction of relative sliding between the upper flip cover 6 and the connecting member 14. A supporting plate 19 is provided on the inner wall of the upper flip cover 6. The supporting plate 19 extends downward from the top surface of the inner cavity 61 and is inserted into the first receiving groove 18 through the opening of the first receiving groove 18. The first elastic member 20 is a return spring, which is positioned on the positioning post 21. One end of the return spring abuts against the inner wall of the first receiving groove 18, and the other end of the return spring abuts against the abutment plate 19 to provide elastic force to the abutment plate 19, pushing the abutment plate 19 to drive the upper flip cover 6 to move and reset relative to the connecting member 14. A second slot 51 is provided on the side wall of the abutment plate 19 for inserting the end of the return spring.

[0047] A first hook portion 42 is fixedly provided on the top of the main cover body 1 , and a second hook portion 43 corresponding to the first hook portion 42 is fixed inside the upper flip cover 6 .

[0048] Figure 7 As shown, when the upper flip cover 6 is closed on the main cover body 1, the upper flip cover 6 covers the drinking port 17 and the first hook portion 42, and the second hook portion 43 is engaged with the first hook portion 42, restricting the upper flip cover 6 and the connecting member 14 from flipping upward to form a lock; Figure 8As shown, when the upper flip cover 6 is pushed by external force to move relative to the main cover body 1, the first hook portion 42 and the second hook portion 43 are disengaged. At this time, the connecting member 14 can drive the upper flip cover 6 to flip upward to expose the covered drinking spout 16, allowing the user to drink water through the drinking spout 16.

[0049] The upper flip cover 6 of this patent is used to cover the drinking spout 17 and to push and unlock. The unlocking function and the cover function are integrated on the upper flip cover 6, which increases the size of the unlocking part of the cup lid and facilitates the application of force by hand. The connecting part 14, the first elastic part 20 and the second hook part 43 are all integrated inside the upper flip cover 6, which greatly simplifies the external parts, making the appearance of the cup lid more simple and beautiful when closed, better protecting the parts and increasing the product life.

[0050] Figure 9 、 Figure 12 As shown, preferably, there are two second hook parts 43, and the two second hook parts 43 are respectively arranged on the inner walls on both sides of the inner cavity 61 of the upper flip cover 6, and the second hook parts 43 include a first clamping block 54 fixed on the inner wall of the inner cavity 61, and the main cover body 1 is correspondingly provided with the same number of first hook parts 42, and the two first hook parts 42 are symmetrically arranged on both sides of the drinking spout 16, and the first hook part 42 includes a first buckle rod 46 vertically arranged on the upper surface of the main cover body 1, and a second buckle head 47 protruding from the upper end of the first buckle rod 46. The second hook parts 43 on both sides of the inner cavity 61 are buckled with the two first hook parts 42 on the main cover body 1, so that the covering state is more stable.

[0051] In order to prevent the side edge 41 of the upper flip cover 6 from interfering with the first hook portion 42, an escape groove 44 is provided on the inner walls of the inner cavity 61 of the upper flip cover 6. A second socket 53 is provided at the bottom of the side edge 41 of the upper flip cover 6 for the first hook portion 42 to be inserted upward into the escape groove 44. A first clamping block 54 is provided on the side of the escape groove 44 close to the pin 13. An insertion channel 52 is formed between the first clamping block 54 and the side wall of the escape groove 44 away from the pin 13 for the first hook portion 42 to enter. The first clamping block 54 has a A first guide slope 55 is inclined from the bottom toward one side of the insertion channel 52. The first guide slope 55 is used to guide the inserted first hook portion 42 into the insertion channel 52. A first clamping plane 56 is provided on the top of the first clamping block 54. The second clamping head 47 is provided with a second guide slope 49 inclined from the top toward the protruding side. The second guide slope 49 is used to slide with the first guide slope 55. The bottom of the second clamping head 47 is provided with a second clamping plane 48 that is clamped with the first clamping plane 56.

[0052] When the connecting member 14 drives the upper flip cover 6 to flip down and cover the main cover body 1, the first hook portion 42 moves upward from the second socket 53 into the avoidance groove 44. At this time, the second guide slope 49 on the second buckle head 47 contacts the first guide slope 55 on the first clamping block 54. In the process of the upper flip cover 6 continuing to flip downward, the second guide slope 49 and the first guide slope 55 squeeze each other, and the first hook portion 42 pushes the first clamping block 54 along the first guide slope 55 to drive the upper flip cover 6 to move toward the side of the pin shaft 13 until the second buckle head 47 and the first clamping block 5 4 is misaligned, causing the first catch rod 46 and the second catch head 47 to enter the insertion channel 52, and the upper flip cover 6 continues to flip downward. When the first clamping block 54 moves down to a position below the second catch head 47, the return spring pushes the upper flip cover 6 to move to the side away from the pin shaft 13 and reset, causing the first clamping block 54 to move below the second catch head 47. At this time, the first clamping surface 56 on the first clamping block 54 is opposite to the second clamping surface 48 on the second catch head 47. The first clamping block 54 and the second catch head 47 are engaged with each other, preventing the upper flip cover 6 from flipping upward and opening.

[0053] When the flip cover 6 needs to be opened, the flip cover 6 is pushed toward the side of the pin shaft 13, so that the first clamping block 54 moves out from under the second clamping head 47, and the second clamping head 47 enters the insertion channel 52 from above the first clamping block 54. At this time, the first buckle rod 46 and the second buckle head 47 are both in the insertion channel 52, and the first hook portion 42 does not block the upward flipping of the flip cover 6. The flip cover 6 can be opened by flipping to expose the covered drinking water port 17, and the first hook portion 42 disengages from the avoidance groove 44 from the second socket 53.

[0054] Figure 9 As shown, in addition, a support plate 50 is provided on the main cover body 1 corresponding to the first hook portion 42. The support plate 50 is fixedly connected to the inner side of the first hook portion 42 near the drinking spout 16. The support plate 50 supports the first hook portion 42, so that the first hook portion 42 has higher strength and is not easily damaged.

[0055] Figure 3 As shown, the main cover body 1 is provided with an air hole 22, which is located on the rear side of the drinking spout 16. The connecting member 14 is provided with a sealing member corresponding to the air hole 22 and the drinking spout 17. When the upper flip cover 6 is closed on the cover body, the upper flip cover 6 covers the drinking spout 17, the first hook portion 42 and the air hole 22, and the sealing member seals the air hole 22 and the drinking spout 17. A single sealing member can be provided to seal both the drinking spout 17 and the air hole 22, or two sealing members can be provided to seal the drinking spout 17 and the air hole 22 separately.

[0056] Figure 14As shown, preferably, two seals are installed at the bottom of the connecting member 14, and the two seals are a first seal 15 and a second seal 23. The first seal 15 and the second seal 23 correspond to the drinking port 17 and the air hole 22 respectively. When the upper flip cover 6 is flipped down and closed, the first seal 15 is tightly pressed on the drinking port 17 at the top of the drinking spout 16, and the second seal 23 is tightly pressed on the air hole 22. The first seal 15 and the second seal 23 are made of rubber or silicone.

[0057] A third slot 60 is provided on the bottom of the connecting member 14, and the first sealing member 15 is fixed in the third slot 60. When the upper flip cover 6 is flipped down and closed, the drinking spout 16 is inserted into the third slot 60 and the first sealing member 15 is plugged into the drinking port 17 at the top of the drinking spout 16. The cooperation between the third slot 60 and the drinking spout 16 can reduce the overall height of the cup cover.

[0058] Figure 17 As shown, the upper end of the air hole 22 is a circular slot 24, and the lower end of the second sealing member 23 forms a ball head that matches the shape of the circular slot 24. When the upper flip cover 6 is flipped down to cover, the ball head is inserted into the circular slot 24 to seal the air hole 22.

[0059] A second elastic member 33 is provided between the connecting member 14 and the main cover 1 . The second elastic member 33 is used to drive the connecting member 14 and the upper flip cover 6 to flip upward and open when the first hook portion 42 and the second hook portion 43 are disengaged.

[0060] Figure 5 、 Figure 9 、 Figure 14 As shown, the second elastic member 33 is a torsion spring, one end of the fixing seat 7 is provided with a second accommodating groove 32 and a first clamping groove 45 communicating with the second accommodating groove 32, the second accommodating groove 32 is connected to one end of the shaft hole 31, and the two are connected, the end of the pin 13 passes through the second accommodating groove 32 and extends out of the fixing seat 7, the torsion spring is sleeved on the pin 13, the torsion spring is partially accommodated in the second accommodating groove 32, and the end of one end of the torsion spring is clamped in the first clamping groove 45 to form a connection with the fixing seat 7, the first connecting portion 34 is connected to the second accommodating groove 32, and the first connecting portion 34 is connected to the second accommodating groove 32. A third accommodating groove 39 and a second clamping groove 58 connected to the third accommodating groove 39 are provided at the opposite end of the groove 32. The third accommodating groove 39 is located at one end of the first connecting hole 40 and is connected to each other. The end of the pin shaft 13 passes through the third accommodating groove 39 and is inserted into the first connecting hole 40. The torsion spring is partially accommodated in the third accommodating groove 39, and the end of the other end of the torsion spring is clamped in the second clamping groove 58 to form a connection with the first connecting part 34, so that the torsion spring can drive the connecting member 14 to drive the upper flip cover 6 to flip upward and open.

[0061] Figure 3 、 Figure 9 、 Figure 13As shown, the rear end of the connecting member 14 is provided with a resistance protrusion 25, and the resistance protrusion 25 is located between the two first connecting parts 34. A limiting block 8 corresponding to the resistance protrusion 25 is provided on the fixing seat 7. The upper cover body is limited after being flipped open through the cooperation of the resistance protrusion 25 and the limiting block 8. When the connecting member 14 drives the upper flip cover 6 to rotate upward and open to the position, the resistance protrusion 25 rotates to the bottom of the limiting block 8 due to the elastic deformation after extrusion, so that the limiting block 8 resists the limiting resistance protrusion 25, and limits the upper flip cover 6 from rotating back to close after opening, thereby facilitating actual drinking water use, avoiding the upper flip cover 6 from rotating back and hitting the user during drinking water, and improving the user experience. The connecting piece 14 and the interference protrusion 25 are integrally formed of plastic material, and the fixing seat 7 and the limit block 8 are integrally formed of plastic material. Due to the elasticity of the plastic material itself, when the upper flip cover 6 is forced to flip upward to open, the interference protrusion 25 and the limit block 8 are squeezed and elastically deformed, so that the interference protrusion 25 can jump to the bottom of the limit block 8. When the upper flip cover 6 is forced to flip downward to close, the interference protrusion 25 and the limit block 8 are squeezed and elastically deformed, so that the interference protrusion 25 can jump to the top of the limit block 8.

[0062] Figure 1 、 Figure 11 、 Figure 15 As shown, a lifting ring 5 is rotatably connected to the pin shaft 13 , a protrusion 11 is provided on the inner side wall of the lifting ring 5 , and a matching groove 12 is provided on the outer side wall of the upper flip cover 6 .

[0063] Figure 1 、 Figure 3 As shown, when the lifting ring 5 is turned down, the lifting ring 5 surrounds the outer side of the upper flip cover 6 in the closed state, and at the same time, the protrusion 11 is engaged in the groove 12. The engagement between the protrusion 11 and the groove 12 can limit the lifting ring 5 from opening upward. The lifting ring 5 surrounds the outer side of the upper flip cover 6 to limit the upper flip cover 6 in the closed state, preventing the upper flip cover 6 from accidentally touching the upper flip cover 6 and causing the upper flip cover 6 to move relative to the main cover body 1 so that the first hook portion 42 and the second hook portion 43 are disengaged, thereby improving the safety of use. Figure 16 、 Figure 17 As shown, when it is necessary to open the upper cover 6, the handle 5 needs to be flipped upward to disengage the upper cover 6 from the ring of the handle 5, so that the upper cover 6 can be pushed to move relative to the main cover 1 toward the side of the pin 13 so that the first hook portion 42 and the second hook portion 43 are disengaged to release the upper cover 6 and open it, making the operation safer and more reliable. In addition, the handle 5 can be used for hand carrying when flipped upward, integrating the handle function and the safety lock function on the handle 5, making the structure more reasonable. The handle 5 is made of plastic material, and the upper cover 6 is also made of plastic material. The engagement and disengagement of the protrusion 11 and the groove 12 are achieved by the automatic elasticity of the plastic material.

[0064] Figure 1As shown, in addition, a notch groove 4 corresponding to the lifting ring 5 is provided on the main cover body 1. When the lifting ring 5 is flipped down and wrapped around the outer side of the upper flip cover 6 in the closed state, the notch groove 4 is located below the lifting ring 5, which is convenient for the user to flip the lifting ring 5 upward.

[0065] Specifically, the main cover 1 includes a main body 2 and a decorative frame 3 sleeved on the outside of the main body 2. A second notch is provided on the upper edge of the decorative frame 3. The second notch and the side wall of the main body 2 are combined to form the above-mentioned notch groove 4.

[0066] Figure 2 、 Figure 5 、 Figure 6 As shown, the first connecting portion 34 is provided with a plug-in column 35 on the side away from the fixing seat 7. The plug-in column 35 is a cylinder. The first connecting hole 40 passes through the plug-in column 35. The lifting ring 5 is a non-closed ring structure with an opening at the rear. Connecting sleeves 36 are fixed on the inner sides of both ends of the lifting ring 5. The connecting sleeves 36 are also cylindrical. The connecting sleeves 36 on both sides can be rotatably sleeved on the outer sides of the plug-in columns 35 on both sides, thereby completely covering the exposed end of the pin shaft 13, making the overall structure more beautiful.

[0067] In addition, shielding edges 10 are provided on both sides of the above-mentioned first notch 9, which respectively surround the first connecting portion 34 and the outer side of the plug-in column 35 on both sides. The side of the shielding edge 10 away from the notch is connected to the side 41 of the upper flip cover 6. The side 41 of the upper flip cover 6 is provided with a socket 38 opposite to the internal plug-in column 35. The connecting sleeves 36 at both ends of the lifting ring 5 are respectively inserted into the sockets 38 on both sides and can be rotatably sleeved on the outer side of the plug-in column 35. The socket 38 has space for the connecting sleeve 36 to move relative to each other when the upper flip cover 6 and the connecting member 14 move relative to each other.

[0068] The shielding edge 10 shields the connecting sleeve 36, the plug-in column 35 and the first connecting portion 34, making the overall appearance more beautiful, while also providing certain protection for the connection parts of the connecting piece 14, the lifting ring 5 and the pin shaft 13 that are rotatably connected.

[0069] Figure 11 As shown, preferably, the insertion hole 38 is an oblong hole, the length direction of the oblong hole is set along the moving direction of the upper flip cover 6, the oblong hole is slidably matched with the connecting sleeve 36, and the matching limit of the connecting sleeve 36 and the oblong hole makes the relative sliding of the connecting member 14 and the upper flip cover 6 more stable.

[0070] Figure 15 As shown, a limiting edge 37 is provided on the circumferential outer wall of the connecting sleeve 36. When the connecting sleeve 36 is inserted into the insertion hole 38, the limiting edge 37 is stuck on the inner wall of the side edge 41 of the upper flip cover 6 to limit the connecting sleeve 36 from detaching outward.

[0071] Notches 57 flush with the outer edge of the connecting sleeve 36 are provided at symmetrical positions on both sides of the limiting edge 37 for inserting the connecting sleeve 36 into or out of the socket 38 .

[0072] The above describes the flip-top, self-locking cup lid provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are intended only to facilitate understanding of the present invention and its core concepts. It should be noted that those skilled in the art may, without departing from the principles of the present invention, make various improvements and modifications to the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. The flip-top self-locking cup lid is characterized by: The invention comprises a main cover body, an upper cover body and a pin shaft, wherein the main cover body is provided with a drinking port and a first hook and buckle portion, the upper cover body comprises a connecting piece, an upper flip cover and a first elastic piece, the connecting piece is installed inside the upper flip cover, and the upper flip cover and the connecting piece can slide relative to each other, the first elastic piece is arranged between the upper flip cover and the connecting piece to push the upper flip cover to move and reset, one side of the connecting piece is rotatably connected to the main cover body by a pin shaft, and the connecting piece rotates around the axis of the pin shaft so that the upper flip cover can be flipped up to open or flipped down to cover, and a second hook and buckle portion corresponding to the first hook and buckle portion is fixed inside the upper flip cover, When the upper flip cover is closed on the main cover body, the upper flip cover covers the drinking port and the first hook portion, and the second hook portion is engaged with the first hook portion; when the upper flip cover is pushed by external force to move relative to the main cover body, the first hook portion and the second hook portion are disengaged.

2. The flip-top self-locking cup cover according to claim 1, characterized in that: A lifting ring is rotatably connected to the pin shaft, and a protrusion is provided on the inner wall of the lifting ring. A matching groove is provided on the outer wall of the upper flip cover. When the lifting ring is flipped down, the lifting ring surrounds the outer side of the upper flip cover in the closed state to limit the movement of the upper flip cover, and the protrusion is engaged in the groove.

3. The flip-top self-locking cup cover according to claim 2, characterized in that: A fixing seat is fixed on the main cover body, and the fixing seat is provided with an axial hole for a pin shaft to pass through and be fixed to it, and two ends of the pin shaft extend from both sides of the fixing seat, and two sides of the rear end of the connecting piece are provided with a first connecting part protruding toward the rear side, and the fixing seat is inserted between the two first connecting parts, and a plug-in column is provided on the side of the first connecting part away from the fixing seat, and a first connecting hole is provided through the first connecting part and the plug-in column, and the end portion protruding from the pin shaft is inserted into the first connecting hole, and the pin shaft and the first connecting part can rotate relative to each other, and a connecting sleeve is fixed to the inner side of the two ends of the lifting ring, and the connecting sleeves on both sides can be rotatably sleeved on the outer sides of the plug-in columns on both sides.

4. The flip-top self-locking cup cover according to claim 3, characterized in that: The rear part of the upper flip cover is provided with a notch corresponding to the fixing seat, and shielding edges are provided on both sides of the notch, which respectively surround the first connecting part and the outer side of the plug-in column on both sides. The side of the shielding edge away from the notch is connected to the side of the upper flip cover, and the side is provided with a socket opposite to the internal plug-in column. The connecting sleeves at both ends of the lifting ring are respectively inserted into the sockets on both sides and can be rotatably sleeved on the outer side of the plug-in column. The sockets have space for the connecting sleeves to move relative to each other when the upper flip cover and the connecting piece move relative to each other.

5. The flip-top self-locking cup cover according to claim 1, characterized in that: A second elastic member is provided between the connecting member and the main cover body, and the second elastic member is used for driving the connecting member and the upper flip cover to flip upwards when the first hook portion and the second hook portion are disengaged.

6. The flip-top self-locking cup cover according to claim 1, characterized in that: There are two second hook parts, which are respectively arranged on the inner walls on both sides of the upper flip cover. The main cover body is correspondingly provided with the same number of first hook parts. The main cover body is provided with a support plate corresponding to the first hook parts, and the support plate is fixedly connected to one side of the first hook part.

7. The flip-top self-locking cup cover according to claim 1, characterized in that: The connecting member is provided with a receiving groove, and a positioning column is provided on the groove wall of the receiving groove. The extension direction of the positioning column is parallel to the relative sliding direction of the upper flip cover and the connecting member. A supporting plate is provided on the inner wall of the upper flip cover, and the supporting plate is inserted into the receiving groove. The first elastic member is a return spring, and the return spring is positioned on the positioning column. One end of the return spring is against the inner wall of the receiving groove, and the other end of the return spring is against the supporting plate.

8. The flip-top self-locking cup cover according to claim 1, characterized in that: Two buckle parts distributed on the left and right are fixed in the upper flip cover, and sliding grooves corresponding to the buckle parts are provided on both sides of the connecting piece. The buckle parts are buckled in the corresponding sliding grooves and can slide along the sliding grooves.

9. The flip-top self-locking cup cover according to claim 1, characterized in that: The main cover body is provided with an air hole, and the connecting piece is provided with a sealing piece corresponding to the air hole and the drinking port. When the upper flip cover is closed on the main cover body, the upper flip cover covers the drinking port, the first hook portion and the air hole, and the sealing piece seals the air hole and the drinking port.

10. The flip-top self-locking cup cover according to claim 4, characterized in that: The insertion hole is an oblong hole, the length direction of the oblong hole is arranged along the moving direction of the upper flip cover, and the oblong hole is slidably matched with the connecting sleeve.

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