A cup lid and a water cup

Abstract

This invention relates to a cup lid and a cup. The cup lid includes a lid body, with a rubber ring seat on the lower side of the lid body. A sealing rubber ring is mounted on the rubber ring seat, and the sidewall of the sealing rubber ring stands between the rubber ring seat and the lid body. The rubber ring seat and the lid body can move towards each other, compressing and deforming the sidewall of the sealing rubber ring. Conversely, the rubber ring seat and the lid body can move away from each other, allowing the sidewall of the sealing rubber ring to return to its original state. The lid body has a locking structure for locking the position of the rubber ring seat on the lid body, maintaining the sidewall of the sealing rubber ring in either a compressed or restored state. After compression and deformation, the outer diameter of the sealing rubber ring's sidewall increases, sufficient to provide an interference fit with the inner wall of the cup body, preventing it from passing through the cup opening and achieving a tight seal. Thus, the cup lid of this invention can seal the cup body without using a threaded connection, making operation convenient.

Description

Technical Field

[0001] This invention relates to the technical field of cups, and more specifically to a cup lid and a water cup. Background Technology

[0002] In existing technology, the lids of insulated cups or sports water bottles are connected to the cup body using threads. The lid needs to be rotated to open and close. While threaded connections are convenient, the grooves in the threads easily trap dirt and grime, making them difficult to clean. Furthermore, the threads that lock the lid and cup body together are prone to wear over time, leading to leaks. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a cup lid that can tightly cover the cup body without using a threaded connection, and the operation of assembling and disassembling the cup lid on the cup body is very convenient.

[0004] The technical solution of the present invention is to provide a cup lid, including a lid body, a rubber ring seat provided on the lower side of the lid body, a sealing rubber ring provided on the rubber ring seat, and the side wall of the sealing rubber ring standing between the rubber ring seat and the lid body. The rubber ring seat and the lid body can move towards each other to compress and deform the side wall of the sealing rubber ring, and the rubber ring seat and the lid body can move away from each other to restore the side wall of the sealing rubber ring. The lid body is provided with a locking structure, which is used to lock the position of the rubber ring seat on the lid body, so that the side wall of the sealing rubber ring is maintained in either a compressed and deformed state or a restored state.

[0005] Compared with the prior art, the cup lid of the present invention has the following advantages: When the rubber ring seat moves towards the lid body, causing the side wall of the sealing rubber ring to be compressed and deformed, the outer diameter of the deformed sealing rubber ring's side wall increases, which is sufficient to make an interference fit with the inner side wall of the cup body. This makes the sealing rubber ring, which could originally pass smoothly through the cup opening, unable to pass through the cup opening, thereby achieving the effect of sealing the cup body tightly. When the rubber ring seat moves away from the lid body, causing the side wall of the sealing rubber ring to recover, the outer diameter of the side wall of the sealing rubber ring returns to normal and no longer makes an interference fit with the inner side wall of the cup body. The sealing rubber ring can then pass smoothly through the cup opening, completing the effect of opening the lid. Thus, the cup lid of the present invention only requires the rubber ring seat and the lid body to move towards or away from each other to complete the operation of assembling and disassembling the cup lid on the cup body. It can also seal the cup body tightly without the need for a threaded connection, making the operation convenient.

[0006] Preferably, the cover body has a central hole, and the wall of the central hole has a limiting step surface; the rubber ring seat includes a connecting post and a base arranged vertically, the connecting post has a limiting rib in the middle, the connecting post is connected to the central hole and can move up and down within the central hole, the limiting step surface is located below the limiting rib and limits the limiting rib; the sealing rubber ring is disposed on the base. With this structure, the rubber ring seat can be conveniently placed on the lower side of the cover body by being hung in the central hole by the connecting post.

[0007] Preferably, the locking structure includes a rotary locking member with an inner hole that is opposite to and communicates with the central hole. A connecting post can be inserted into the inner hole, and the inner hole cooperates with the connecting post to lock the rotary locking member on the connecting post. When the rotary locking member is locked on the connecting post, the sidewall of the sealing ring remains in a compressed and deformed state. When the connecting post is withdrawn from the inner hole, the sidewall of the sealing ring remains in a restored state. Using this structure, by locking the rotary locking member on the connecting post, the position of the sealing ring seat on the lid can be locked, thereby maintaining the sidewall of the sealing ring in a compressed and deformed state, ensuring the cup lid tightly covers the cup body. After the rotary locking member no longer locks the position of the sealing ring seat on the lid, when the connecting post can be withdrawn from the inner hole, the sealing ring seat can move downwards away from the lid, thereby restoring the sidewall of the sealing ring to its original state.

[0008] Preferably, a limiting platform is provided at the upper part of the connecting column, and two symmetrical sliding inclined surfaces are provided on the side wall of the limiting platform. A clearance groove is provided between the limiting platform and the limiting rib. Two symmetrical limiting blocks are provided on the wall of the inner hole. The bottom of each limiting block is provided with a rotating locking inclined surface that transitions to the side. The rotating locking inclined surface can slide in a one-to-one correspondence with the sliding inclined surface. When the rotating locking inclined surface slides downward in cooperation with the sliding inclined surface, the rotating locking component can move spirally downward along the connecting column until the limiting block is embedded in the clearance groove and locks the rotating locking component. When the rotating locking inclined surface slides upward in cooperation with the sliding inclined surface, the rotating locking component can move spirally upward along the connecting column until the connecting column is withdrawn from the inner hole. With this structure, as long as the rotary locking component is pressed down, the rotary locking ramp can cooperate with the sliding ramp to slide downward, allowing the rotary locking component to move spirally downward along the connecting column until the limiting block is embedded in the clearance groove to lock the rotary locking component, which is convenient to operate; and since the two sliding ramps are symmetrical, continuing to rotate the rotary locking component will allow the rotary locking ramp to cooperate with the sliding ramp to slide upward, allowing the rotary locking component to disengage from the clearance groove and unlock.

[0009] Preferably, the cover includes an outer cover and an inner cover, with the inner cover positioned below the outer cover. The outer cover and inner cover are locked vertically but can rotate relative to each other circumferentially. A rotary locking element is located inside the inner cover and can rotate within it, with the inner cover locking the rotary locking element vertically. Two rotary locking push blocks are located inside the outer cover. When the outer cover rotates circumferentially relative to the inner cover, the two rotary locking push blocks push the two sides of the rotary locking element, causing it to rotate within the inner cover. This structure allows for pressing down the inner cover or rotating the rotary locking element when the outer cover is in operation; it is simple in structure and convenient in operation.

[0010] Preferably, the inner cover is provided with a rotary lock receiving groove, the rotary lock component is disposed in the rotary lock receiving groove and can rotate planarly within the rotary lock receiving groove, and a rotary lock limiting strip is provided on the upper side of the groove wall, the rotary lock limiting strip is located above the rotary lock component and is used to lock the rotary lock component in the vertical direction. This structure facilitates the assembly of the rotary lock component and also facilitates the inner cover to lock the rotary lock component in the vertical direction.

[0011] Preferably, the inner cover has a rotary lock pusher slide on both sides of the rotary lock receiving groove. The rotary lock pushers extend into the corresponding slides and can slide along them. One end of each slide limits the rotation of the rotary lock pusher, and the other end communicates with the rotary lock receiving groove. This structure facilitates the operation of the outer cover by pushing both sides of the rotary lock component to rotate it within the inner cover.

[0012] Preferably, a resilient reset element is provided between the rotary locking component and the inner cover. When the rotary locking ramp and the sliding ramp slide together, the resilient reset element is compressed. When the resilient reset element rebounds, it pushes the outer cover and the rotary locking component to reset. With this structure, after the rotary locking component moves spirally downward along the connecting post until the limiting block is embedded in the clearance groove, the resilient reset element rebounds and pushes the outer cover and the rotary locking component to rotate, so that the rotary locking ramp no longer engages with the sliding ramp, thereby locking the rotary locking component. Similarly, when the rotary locking component moves spirally upward along the connecting post until the connecting post exits from the inner hole, the resilient reset element rebounds and pushes the outer cover and the rotary locking component to rotate, also so that the rotary locking ramp no longer engages with the sliding ramp, preventing the connecting post from sliding back into the inner hole.

[0013] Preferably, the rotary lock component has two centrally symmetrical push blocks, which correspond one-to-one with each other to push the rotary lock component to rotate within the inner cover. Each push block has a spring seat positioned opposite to it, and the inner cover has two centrally symmetrical rotary lock spring seats, each corresponding to a rotary lock spring seat. The rotary lock elastic reset component consists of two cylindrical springs respectively positioned between the corresponding spring seats and the rotary lock spring seats. This structure simplifies the assembly of the rotary lock elastic reset component and provides a good reset effect.

[0014] Preferably, the inner cover has two self-locking member receiving slots, each containing a self-locking member. A self-locking member elastic reset element is provided between the bottom of each self-locking member and the receiving slot, and a self-locking protrusion is provided on the upper side of each self-locking member. The outer cover has two self-locking slots, with the self-locking protrusions correspondingly extending into each slot to circumferentially lock the outer cover and inner cover. An unlocking button is provided inside the outer cover, with its upper part extending outside the cover and its lower part covering both self-locking protrusions. Pressing down the unlocking button causes the self-locking protrusions to retract from their respective slots, thus circumferentially unlocking the outer cover and inner cover. With this structure, under normal conditions, the self-locking protrusions extend into the self-locking grooves one by one to lock the outer and inner covers circumferentially. At this time, the outer cover cannot be rotated, and therefore the rotary locking mechanism cannot be driven to unlock the rubber ring seat. The self-locking mechanism is the safety of the cup lid. To make the outer cover drive the rotary locking mechanism to unlock the rubber ring seat, the unlock button must be pressed down first to make the self-locking protrusions all exit their respective self-locking grooves.

[0015] Preferably, a button catch is provided inside the outer cover. The button catch is located below the unlock button and limits its movement. The position of the button catch is not higher than the opening of the self-locking groove. With this structure, the button catch prevents the unlock button from detaching from the outer cover, making it easy to assemble the outer cover and the unlock button together onto the inner cover.

[0016] Preferably, the inner cover has an outer sidewall with at least two first sliding grooves. The inner sidewall of the outer cover has first protrusions that slide in correspondence with each of the first sliding grooves. The first sliding grooves limit the movement of the first protrusions in the vertical direction. The first sliding grooves have notches for the first protrusions to enter or exit the grooves. When the outer cover and inner cover rotate relative to each other in the circumferential direction, the first protrusions slide within their corresponding first sliding grooves. With this structure, the cooperation between the first sliding grooves and the first protrusions achieves vertical locking of the outer cover and inner cover while allowing relative circumferential rotation.

[0017] Preferably, at least two second sliding grooves are provided on the outer sidewall, and anti-reverse ribs are provided in the second sliding grooves. One side of the anti-reverse rib is provided with an advancing inclined surface, and the other side is provided with a blocking surface. The upper side of the second sliding groove is not provided with a groove wall. The inner sidewall of the outer cover is provided with second protrusions that correspond to and slide with the second sliding grooves one by one. One side of the second protrusion is provided with a clearance inclined surface. When the first protrusion enters the first sliding groove from the notch of the first sliding groove, the second protrusion enters the second sliding groove from the upper side of the second sliding groove, and the clearance inclined surface is opposite to the advancing inclined surface. The clearance inclined surface can slide along the advancing inclined surface until the second protrusion passes the anti-reverse rib. When the outer cover and the inner cover rotate circumferentially relative to each other, the second protrusion can slide along the second sliding groove and be limited by the anti-reverse rib. With this structure, after the second protrusion moves from one side of the anti-reverse rib to the other side, when the outer cover and the inner cover rotate relative to each other, the second groove and the anti-reverse rib limit the sliding range of the second protrusion, which can prevent the first protrusion from entering the gap of the first groove and sliding out.

[0018] Preferably, the inner cover has an inner sidewall, and the sidewall of the sealing ring is fitted onto the inner sidewall. The sidewall of the sealing ring has at least one limiting protrusion, and the inner sidewall has a sealing ring limiting groove that mates with the limiting protrusion. The limiting protrusions are inserted into the sealing ring limiting groove one-to-one. With this structure, the inner sidewall supports and limits the sidewall of the sealing ring, facilitating the positioning of the sealing ring's sidewall between the sealing ring seat and the inner cover.

[0019] Preferably, a pressure relief rod is provided inside the rubber ring seat, and a pressure relief rod elastic reset element is provided between the pressure relief rod and the rubber ring seat. A pressure relief button is provided on the lid. Pressing the pressure relief button pushes the pressure relief rod downwards, connecting the inside and outside of the rubber ring seat, and causing the pressure relief rod elastic reset element to elastically deform. The elastic reset element rebounds, allowing the pressure relief rod to return to its original position. With this structure and pressure relief rod, when opening the lid, the pressure relief rod can be pushed downwards to connect the inside and outside of the rubber ring seat, ensuring pressure balance inside and outside the cup, facilitating the removal of the lid for opening.

[0020] The present invention also provides a water cup, the technical solution of which includes a cup body, a cup lid as described above being provided on the cup mouth of the cup body; a first limiting ring and a second limiting ring are provided from top to bottom on the inner side wall of the cup mouth; the second limiting ring is located below the rubber ring seat and is used to limit the rubber ring seat; the first limiting ring is opposite to the side wall of the sealing rubber ring, and when the side wall of the sealing rubber ring is compressed and deformed, the first limiting ring is located above the deformed position of the side wall of the sealing rubber ring and is used to limit the deformed side wall of the sealing rubber ring.

[0021] Compared with the prior art, the water cup of the present invention has the following advantages: A second limiting ring is provided to limit the rubber ring seat, so that when the lid is pressed down, the lid moves relative to the rubber ring seat, causing the side wall of the sealing rubber ring to compress and deform; a first limiting ring is provided to limit the side wall of the deformed sealing rubber ring, so that the side wall of the sealing rubber ring cannot pass through the first limiting ring after compression and deformation, thereby achieving the effect of tightly sealing the cup body; thus, the water cup of the present invention can be disassembled and tightened without using a threaded connection, making operation convenient. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the cup lid of the present invention.

[0023] Figure 2 for Figure 1 Exploded view.

[0024] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure along the AA direction.

[0025] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure along the BB direction.

[0026] Figure 5 This is a schematic diagram of the internal structure of the outer lid of the cup lid of the present invention.

[0027] Figure 6 This is a schematic diagram of the lower side structure of the inner lid of the cup lid of the present invention.

[0028] Figure 7 This is a schematic diagram of the structure of the rubber ring seat in the cup lid of the present invention.

[0029] Figure 8 This is a schematic diagram of the screw-lock component in the cup lid of the present invention.

[0030] Figure 9 This is a schematic diagram of the structure of the cup lid of the present invention, showing the cooperation between the locking component and the rubber ring seat in the locked state.

[0031] As shown in the figure:

[0032] 1. Outer cover, 1-1. Unlock button, 1-2. Self-locking groove, 1-3. Rotary lock push block, 1-4. Button stop, 1-5. First protrusion, 1-6. Second protrusion, 1-61. Alternating slope, 2. Inner cover, 2-1. Rotary lock receiving groove, 2-11. Rotary lock spring seat, 2-12. Rotary lock push block slide, 2-13. Rotary lock limiting strip, 2-2. Self-locking component receiving groove, 2-3. Center hole, 2-31. Limiting step surface, 2-4. First sliding groove, 2-5. Outer sidewall, 2-51. Second sliding groove, 2-5 2. Anti-reverse rib, 2-6. Inner sidewall, 2-61. Rubber ring limiting groove, 3. Twisting lock, 3-1. Push block, 3-11. Spring seat, 3-2. Inner hole, 3-3. Limiting block, 3-31. Twisting lock inclined surface, 3-32. Upper limit surface, 4. Self-locking component, 4-1. Self-locking protrusion, 5. Rubber ring seat, 5-1. Connecting column, 5-11. Limiting rib, 5-12. Alternating groove, 5-13. Limiting platform, 5-14. Sliding inclined surface, 5-2. Base, 6. Sealing rubber ring, 6-1. Limiting protrusion, 7. Pressure relief rod. Detailed Implementation

[0033] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0034] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0035] It should also be understood that the terms "comprising," "having," "including," and "containing," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. Furthermore, when expressions such as "...at least one" appear after a list of listed features, they modify the entire listed feature, not individual elements in the list.

[0036] like Figure 1 and Figure 2 As shown, the cup lid of the present invention includes an outer cover 1, an inner cover 2, a rotary locking member 3, a self-locking member 4, a rubber ring seat 5, a sealing rubber ring 6, and a pressure relief rod 7. The inner cover 2 is disposed on the lower side of the outer cover 1. The outer cover 1 and the inner cover 2 are locked in the vertical direction but can rotate relative to each other in the circumferential direction. The rotary locking member 3 is disposed inside the inner cover 2 and can rotate inside the inner cover 2. The inner cover 2 locks the rotary locking member 3 in the vertical direction. The self-locking protrusion 4-1 is used to lock the outer cover 1 and the inner cover 2 in the circumferential direction. The rubber ring seat 5 is disposed on the lower side of the inner cover 2. The sealing rubber ring 6 is disposed on the rubber ring seat 5. The pressure relief rod 7 is disposed inside the rubber ring seat 5.

[0037] like Figure 2 , Figure 3 and Figure 5 As shown, the inner cover 2 is provided with an outer sidewall 2-5, and the outer sidewall 2-5 is provided with two first sliding grooves 2-4. The inner sidewall of the outer cover 1 is provided with two first protrusions 1-5 that correspond to and slide with the first sliding grooves 2-4. The upper and lower sidewalls of the first sliding grooves 2-4 limit the first protrusions 1-5 in the vertical direction. The first sliding grooves 2-4 are provided with notches for the first protrusions 1-5 to enter or exit the first sliding grooves 2-4.

[0038] Two second sliding grooves 2-51 are also provided on the outer sidewall 2-5. The second sliding groove 2-51 is provided with a backstop rib 2-52. One side of the backstop rib 2-52 is provided with an advancing slope and the other side is provided with a blocking surface. The second sliding groove 2-51 is only provided with a groove wall on its lower side, and no groove wall is provided on the upper side of the second sliding groove 2-51. Two second protrusions 1-6 are provided on the inner sidewall of the outer cover 1, which correspond to and slide with the second sliding grooves 2-51. One side of the second protrusions 1-6 is provided with a clearance slope 1-61.

[0039] When assembling the outer cover 1 and the inner cover 2, firstly, the first protrusion 1-5 enters the first slide groove 2-4 through the notch in the first slide groove 2-4. At this time, the second protrusion 1-6 enters the second slide groove 2-51 from the upper side, and the second protrusion 1-6 is located on one side of the anti-retraction rib 2-52. The avoidance slope 1-61 is opposite to the advance slope. Then, rotate the outer cover 1 so that the outer cover 1 rotates circumferentially relative to the inner cover 2. Then, the avoidance slope 1-61 can slide along the advance slope until the second protrusion 1-6 passes the anti-retraction rib 2-52 and is located on the other side of the anti-retraction rib 2-52. Subsequently, when the outer cover 1 and the inner cover 2 rotate relative to each other in the circumferential direction, the first protrusion 1-5 slides in the corresponding first groove 2-4, and the second protrusion 1-6 can slide along the second groove 2-51 and be limited by the stop surface of the anti-retraction rib 2-52. In this way, the first protrusion 1-5 can no longer enter the notch of the first groove 2-4, and will no longer exit the first groove 2-4, that is, the outer cover 1 and the inner cover 2 cannot be separated.

[0040] like Figure 2 and Figure 3 As shown, the inner cover 2 has two self-locking member receiving grooves 2-2, each containing a self-locking member 4. The bottom of each self-locking member 4 has a spring hole (not shown), and a self-locking spring is installed within the spring hole. This self-locking spring is a self-locking elastic reset member located between the bottom of the self-locking member 4 and the self-locking member receiving groove 2-2. Each self-locking member 4 has a self-locking protrusion 4-1 on its upper side. Figure 3 and Figure 5 As shown, the outer cover 1 is provided with two self-locking grooves 1-2, and the self-locking protrusions 4-1 extend into the self-locking grooves 1-2 in a corresponding manner to lock the outer cover 1 and the inner cover 2 circumferentially.

[0041] An unlock button 1-1 is provided inside the outer cover 1. The upper part of the unlock button 1-1 extends out of the outer cover 1, and the lower part of the unlock button 1-1 covers the two self-locking protrusions 4-1. Pressing down the unlock button 1-1 will cause the self-locking protrusions 4-1 to retract from their respective self-locking grooves 1-2, thereby unlocking the outer cover 1 and the inner cover 2 circumferentially. A button catch 1-4 is also provided inside the outer cover 1. The button catch 1-4 is snapped into the outer cover 1. The button catch 1-4 is located below the unlock button 1-1 and limits the unlock button 1-1. When the outer cover 1 is not installed on the inner cover 2, the button catch 1-4 supports the unlock button 1-1. When the outer cover 1 is installed on the inner cover 2, the self-locking protrusions 4-1 support the unlock button 1-1. The position of the button catch 1-4 is slightly lower than the opening of the self-locking groove 1-2 to avoid interference with the unlock button 1-1 when it is pressed down.

[0042] In this embodiment, the unlock button 1-1 is also vertically opposite the pressure relief rod 7. Pressing down the unlock button 1-1 simultaneously causes the pressure relief rod 7 to move downward, connecting the inner and outer parts of the rubber ring seat 5. A pressure relief rod elastic reset component is provided between the pressure relief rod 7 and the rubber ring seat 5. Pressing down the unlock button 1-1 simultaneously causes the pressure relief rod elastic reset component to elastically deform, and the rebound of the pressure relief rod elastic reset component can reset the pressure relief rod 7.

[0043] like Figure 2 and Figure 4 As shown, the inner cover 2 has a central hole 2-3, and a limiting step surface 2-31 is provided on the wall of the central hole 2-3; the rubber ring seat 5 includes a connecting post 5-1 and a base 5-2 arranged vertically, a limiting rib 5-11 is provided in the middle of the connecting post 5-1, the connecting post 5-1 is connected to the central hole 2-3 and can move up and down within the central hole 2-3, the limiting step surface 2-31 is located below the limiting rib 5-11 and limits the limiting rib 5-11; the sealing rubber ring 6 is provided on the base 5-2, and the base 5-2 is supported on the bottom of the sealing rubber ring 6. Figure 6 As shown, the inner cover 2 is provided with an inner sidewall 2-6, and the inner sidewall 2-6 is provided with two rubber ring limiting grooves 2-61; as Figure 2 As shown, two limiting protrusions 6-1 are provided on the side wall of the sealing ring 6. The side wall of the sealing ring 6 is sleeved on the inner side wall 2-6, and the limiting protrusions 6-1 are inserted into the sealing ring limiting groove 2-61 in a corresponding manner, so that the side wall of the sealing ring 6 stands between the sealing ring seat 5 and the inner cover 2.

[0044] like Figure 2 and Figure 3 As shown, the inner cover 2 is provided with a rotary lock receiving groove 2-1. The rotary lock member 3 is disposed in the rotary lock receiving groove 2-1 and can rotate in a plane within the rotary lock receiving groove 2-1. A rotary lock limiting strip 2-13 is provided on the upper side of the groove wall of the rotary lock receiving groove 2-1. The rotary lock limiting strip 2-13 is located above the rotary lock member 3 and is used to lock the rotary lock member 3 in the vertical direction. The rotary lock member 3 is provided with an inner hole 3-2 that is opposite to and communicates with the central hole 2-3. The connecting post 5-1 can be inserted into the inner hole 3-2.

[0045] The inner cover 2 has a rotary lock pusher slide 2-12 on both sides of the rotary lock receiving groove 2-1. One end of the rotary lock pusher slide 2-12 limits the rotary lock pusher 1-3, and the other end communicates with the rotary lock receiving groove 2-1. The outer cover 1 has two rotary lock pushers 1-3. The rotary lock pushers 1-3 extend into the rotary lock pusher slide 2-12 one by one and can slide along the rotary lock pusher slide 2-12.

[0046] like Figure 8As shown, the rotary locking component 3 is provided with two centrally symmetrical push blocks 3-1. The rotary locking push blocks 1-3 correspond one-to-one with the push blocks 3-1 to make the rotary locking component 3 rotate within the inner cover 2. Each push block 3-1 has a spring seat 3-11 positioned opposite to the rotary locking push blocks 1-3. Two centrally symmetrical rotary locking spring seats 2-11 are provided within the rotary locking receiving groove 2-1. Each spring seat 3-11 corresponds one-to-one with the rotary locking spring seat 2-11, and a cylindrical spring is provided between each corresponding spring seat 3-11 and the rotary locking spring seat 2-11. These cylindrical springs serve as the rotary locking elastic reset components. When the rotary locking component 3 rotates in a plane within the rotary locking receiving groove 2-1, the rotary locking elastic reset component is compressed. When the rotary locking elastic reset component rebounds, it pushes the rotary locking component 3 back to its original position. The rotary locking component 3 then pushes the rotary locking push blocks 1-3 in the opposite direction, causing the outer cover 1 to reset.

[0047] like Figure 7 As shown, a limiting platform 5-13 is provided on the upper part of the connecting column 5-1, and two symmetrical sliding inclined surfaces 5-14 are provided on the side wall of the limiting platform 5-13. A clearance groove 5-12 is provided between the limiting platform 5-13 and the limiting rib 5-11. Figure 8 As shown, two symmetrical limiting blocks 3-3 are provided on the inner wall of the inner hole 3-2 of the rotary locking component 3. The bottom of each limiting block 3-3 has a rotary locking inclined surface 3-31 that transitions to the side. The rotary locking inclined surface 3-31 can slide in a one-to-one correspondence with the sliding inclined surface 5-14. For example... Figure 9 As shown, when the locking ramp 3-31 and the sliding ramp 5-14 slide downwards, the locking member 3 can move spirally downwards along the connecting post 5-1 until the limiting block 3-3 is embedded in the relief groove 5-12 and locks the locking member 3. At this time, the side wall of the sealing ring 6 is compressed and deformed and remains in the compressed and deformed state. When the locking ramp 3-31 and the sliding ramp 5-14 slide upwards, the locking member 3 can move spirally upwards along the connecting post 5-1 until the connecting post 5-1 exits from the inner hole 3-2. The limiting block 3-3 is limited above the limiting platform 5-13. At this time, the side wall of the sealing ring 6 is restored and remains in the restored state.

[0048] The water cup of the present invention includes a cup lid and a cup body that cooperates with the cup lid. A first limiting ring and a second limiting ring (not shown) are provided from top to bottom on the inner side wall of the cup mouth of the cup body. The cup lid of the present invention is inserted into the cup mouth. The second limiting ring is located below the rubber ring seat 5 and is used to limit the rubber ring seat 5. The first limiting ring is opposite to the side wall of the sealing rubber ring 6. When the side wall of the sealing rubber ring 6 is compressed and deformed, the first limiting ring is located above the deformed position of the side wall of the sealing rubber ring 6 and is used to limit the deformed side wall of the sealing rubber ring 6.

[0049] When the water cup of the present invention is closed, the outer cover 1 is pressed down, and the rubber ring seat 5 is limited by the second limiting ring. The outer cover 1 pushes the inner cover 2 and the rotary locking member 3 to move towards the rubber ring seat 5. The connecting post 5-1 is inserted upward into the inner hole 3-2 of the rotary locking member 3. The rotary locking inclined surface 3-31 and the sliding inclined surface 5-14 cooperate to slide. The rotary locking member 3 can move spirally downward along the connecting post 5-1 until the limiting block 3-3 is embedded in the relief groove 5-12. The side wall of the sealing rubber ring 6 is compressed and deformed by the inner cover 2 and the rubber ring seat 5, and the outer diameter increases, so it cannot pass through the first limiting ring. The rotary locking member 3 rotates back to its original position, and the upper limiting surface 3-32 abuts against the lower side of the limiting platform 5-13. That is, the limiting block 3-3 is limited to the lower side of the limiting platform 5-13. That is, the rotary locking member 3 is locked on the connecting post 5-1. The side wall of the sealing rubber ring 6 remains in a compressed and deformed state. At this time, the cup lid is stably and tightly closed on the cup mouth.

[0050] When opening the cup of this invention, pressing the unlock button 1-1 causes the self-locking protrusions 4-1 to exit their respective self-locking grooves 1-2, simultaneously balancing the air pressure inside and outside the cup. Then, rotating the outer cover 1 causes the rotary locking push blocks 1-3 to push the corresponding push blocks 3-1, causing the rotary locking component 3 to rotate inside the inner cover 2. The rotary locking inclined surface 3-31 and the sliding inclined surface 5-14 slide together, allowing the rotary locking component 3 to spiral upward along the connecting post 5-1 until the limiting block 3-3 exits the clearance groove 5-12 and the connecting post 5-1 exits the inner hole 3-2 of the rotary locking component 3. At this point, the side wall of the sealing ring 6 is restored, the outer diameter is reduced, and it can pass through the first limiting ring again. The rotary locking component 3 rotates back to its original position, and the limiting block 3-3 is limited above the limiting platform 5-13. The rotary locking component 3 cannot move towards the sealing ring seat 5, meaning the side wall of the sealing ring 6 remains in the restored state. At this point, the cup lid can be lifted directly upward to open the cup.

[0051] The above are merely specific embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications or equivalent substitutions made to the present invention without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present invention.

Claims

1. A cup lid, characterized in that, The system includes a cover body, a rubber ring seat (5) on the lower side of the cover body, a sealing rubber ring (6) on the rubber ring seat (5), and the side wall of the sealing rubber ring (6) standing between the rubber ring seat (5) and the cover body. The rubber ring seat (5) and the cover body can move towards each other to compress and deform the side wall of the sealing rubber ring (6), and the rubber ring seat (5) and the cover body can move away from each other to restore the side wall of the sealing rubber ring (6). The cover body is provided with a locking structure, which is used to lock the position of the rubber ring seat (5) on the cover body, so that the side wall of the sealing rubber ring (6) is maintained in a compressed and deformed state or a restored state. The cover body is provided with a central hole (2-3), and the wall of the central hole (2-3) is provided with a limiting step surface. 2-31); The rubber ring seat (5) includes a connecting post (5-1) and a base (5-2) arranged vertically. A limiting rib (5-11) is provided in the middle of the connecting post (5-1). The connecting post (5-1) is connected to the center hole (2-3) and can move up and down in the center hole (2-3). The limiting step surface (2-31) is located below the limiting rib (5-11) and limits the limiting rib (5-11). The sealing rubber ring (6) is set on the base (5-2). The cover includes an outer cover (1) and an inner cover (2). The inner cover (2) is set on the lower side of the outer cover (1). The outer cover (1) and the inner cover (2) are locked in the vertical direction but can rotate relative to each other in the circumferential direction. The locking structure includes a rotary locking element (3). The locking element (3) is set inside the inner cover (2) and can rotate inside the inner cover (2). The inner cover (2) locks the locking element (3) in the vertical direction. The locking element (3) is provided with an inner hole (3-2) that is opposite to and communicates with the central hole (2-3). The connecting post (5-1) can be inserted into the inner hole (3-2). The inner hole (3-2) can cooperate with the connecting post (5-1) to lock the locking element (3) on the connecting post (5-1). When the locking element (3) is locked on the connecting post (5-1), the side wall of the sealing ring (6) remains in a state of compression deformation. When the connecting post (5-1) is withdrawn from the inner hole (3-2), the side wall of the sealing ring (6) remains in a state of restoration. The upper part of the connecting post (5-1) is provided with a limiting platform (5-13). The side wall of the limiting platform (5-13) is provided with two symmetrical sliding inclined surfaces (5-14), and a clearance groove (5-12) is provided between the limiting platform (5-13) and the limiting rib (5-11); the inner hole (3-2) is provided with two symmetrical limiting blocks (3-3), and the bottom of each limiting block (3-3) is provided with a rotating locking inclined surface (3-31) that transitions to the side. The rotating locking inclined surface (3-31) can slide in a one-to-one correspondence with the sliding inclined surface (5-14); when the rotating locking inclined surface (3-31) slides downward in cooperation with the sliding inclined surface (5-14), the rotating locking component (3) can move downward along the connecting column (5-1) until the limiting block (3-3) is embedded in the clearance groove (5-12) and the rotating locking component (3) is locked.When the locking ramp (3-31) and the sliding ramp (5-14) slide upwards in cooperation, the locking component (3) can move spirally upwards along the connecting post (5-1) until the connecting post (5-1) exits from the inner hole (3-2).

2. The cup lid according to claim 1, characterized in that, Two rotary locking push blocks (1-3) are provided inside the outer cover (1). When the outer cover (1) rotates circumferentially relative to the inner cover (2), the two rotary locking push blocks (1-3) push the two sides of the rotary locking component (3) respectively, causing the rotary locking component (3) to rotate inside the inner cover (2).

3. The cup lid according to claim 2, characterized in that, The inner cover (2) is provided with a rotary lock receiving groove (2-1). The rotary lock component (3) is located in the rotary lock receiving groove (2-1) and can rotate in a plane within the rotary lock receiving groove (2-1). A rotary lock limiting strip (2-13) is provided on the upper side of the groove wall of the rotary lock receiving groove (2-1). The rotary lock limiting strip (2-13) is located above the rotary lock component (3) and is used to lock the rotary lock component (3) in the vertical direction.

4. The cup lid according to claim 3, characterized in that, The inner cover (2) is provided with a rotary lock push block slide (2-12) on both sides of the rotary lock receiving groove (2-1). The rotary lock push blocks (1-3) extend into the rotary lock push block slide (2-12) one by one and can slide along the rotary lock push block slide (2-12). One end of the rotary lock push block slide (2-12) limits the rotary lock push block (1-3), and the other end is connected to the rotary lock receiving groove (2-1).

5. The cup lid according to claim 2, characterized in that, A rotary lock elastic reset member is provided between the rotary lock member (3) and the inner cover (2). When the rotary lock inclined surface (3-31) and the sliding inclined surface (5-14) slide together, the rotary lock elastic reset member is compressed. When the rotary lock elastic reset member rebounds, it can push the outer cover (1) and the rotary lock member (3) to reset.

6. The cup lid according to claim 5, characterized in that, The rotary lock component (3) is provided with two centrally symmetrical push blocks (3-1). The rotary lock push blocks (1-3) push the push blocks (3-1) one by one to make the rotary lock component (3) rotate inside the inner cover (2). The push blocks (3-1) are provided with spring seats (3-11) at positions opposite to the rotary lock push blocks (1-3). The inner cover (2) is provided with two centrally symmetrical rotary lock spring seats (2-11). The spring seats (3-11) and the rotary lock spring seats (2-11) correspond one by one. The rotary lock elastic reset component is two cylindrical springs respectively set between the corresponding spring seats (3-11) and the rotary lock spring seats (2-11).

7. The cup lid according to claim 2, characterized in that, The inner cover (2) has two self-locking member receiving grooves (2-2), each containing a self-locking member (4). A self-locking member elastic resettlement member is provided between the bottom of each self-locking member (4) and the self-locking member receiving groove (2-2). A self-locking protrusion (4-1) is provided on the upper side of each self-locking member (4). The outer cover (1) has two self-locking grooves (1-2), with the self-locking protrusions (4-1) corresponding to each other and extending into the self-locking grooves (1-2). 2) The outer cover (1) and the inner cover (2) are circumferentially locked; an unlock button (1-1) is provided inside the outer cover (1). The upper part of the unlock button (1-1) extends out of the outer cover (1), and the lower part of the unlock button (1-1) covers the two self-locking protrusions (4-1). Pressing down the unlock button (1-1) can make the self-locking protrusions (4-1) exit their respective self-locking grooves (1-2) so that the outer cover (1) and the inner cover (2) are circumferentially unlocked.

8. The cup lid according to claim 7, characterized in that, The outer cover (1) is provided with a button buckle (1-4). The button buckle (1-4) is located below the unlock button (1-1) and limits the unlock button (1-1). The position of the button buckle (1-4) is not higher than the slot of the self-locking groove (1-2).

9. The cup lid according to claim 2, characterized in that, The inner cover (2) is provided with an outer sidewall (2-5), and the outer sidewall (2-5) is provided with at least two first sliding grooves (2-4). The inner sidewall of the outer cover (1) is provided with a first protrusion (1-5) that corresponds to and slides with the first sliding groove (2-4). The first sliding groove (2-4) is positioned vertically above the first protrusion (1-5). The first sliding groove (2-4) is provided with a notch for the first protrusion (1-5) to enter or exit the first sliding groove (2-4). When the outer cover (1) and the inner cover (2) rotate relative to each other in the circumferential direction, the first protrusion (1-5) slides in the corresponding first sliding groove (2-4).

10. The cup lid according to claim 9, characterized in that, At least two second sliding grooves (2-51) are provided on the outer sidewall (2-5). A retaining rib (2-52) is provided within each second sliding groove (2-51). One side of the retaining rib (2-52) has an advancing ramp, and the other side has a stopping surface. No groove wall is provided on the upper side of the second sliding groove (2-51). The inner sidewall of the outer cover (1) is provided with second protrusions (1-6) that slide in correspondence with each second sliding groove (2-51). One side of each second protrusion (1-6) has a clearance ramp (1-61). When the first protrusion (1-5) moves from the first... When the notch of the first groove (2-4) enters the first groove (2-4), the second protrusion (1-6) enters the second groove (2-51) from the upper side and the avoidance slope (1-61) is opposite to the advance slope. The avoidance slope (1-61) can slide along the advance slope until the second protrusion (1-6) passes the anti-reverse rib (2-52). When the outer cover (1) and the inner cover (2) rotate circumferentially relative to each other, the second protrusion (1-6) can slide along the second groove (2-51) and be limited by the anti-reverse rib (2-52).

11. The cup lid according to claim 2, characterized in that, The inner cover (2) is provided with an inner sidewall (2-6), the sidewall of the sealing ring (6) is fitted onto the inner sidewall (2-6), the sidewall of the sealing ring (6) is provided with at least one limiting protrusion (6-1), the inner sidewall (2-6) is provided with a ring limiting groove (2-61) that cooperates with the limiting protrusion (6-1), and the limiting protrusion (6-1) is inserted into the ring limiting groove (2-61) in a corresponding manner.

12. The cup lid according to claim 1, characterized in that, A pressure relief rod (7) is provided inside the rubber ring seat (5). A pressure relief rod elastic reset component is provided between the pressure relief rod (7) and the rubber ring seat (5). A pressure relief button is provided on the cover. Pressing the pressure relief button can push the pressure relief rod (7) down to make the rubber ring seat (5) connect inside and outside, and cause the pressure relief rod elastic reset component to undergo elastic deformation. The pressure relief rod elastic reset component rebounds to reset the pressure relief rod (7).

13. A water cup, comprising a cup body, characterized in that, The cup body is provided with a cup lid as described in any one of claims 1 to 12 on the cup mouth; a first limiting ring and a second limiting ring are provided from top to bottom on the inner side wall of the cup mouth; the second limiting ring is located below the rubber ring seat (5) and is used to limit the rubber ring seat (5); the first limiting ring is opposite to the side wall of the sealing rubber ring (6), and when the side wall of the sealing rubber ring (6) is compressed and deformed, the first limiting ring is located above the deformed position of the side wall of the sealing rubber ring (6) and is used to limit the side wall of the deformed sealing rubber ring (6).

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