CN218186171U - Cup cover and bouncing cup - Google Patents

Abstract

The utility model provides a cup cover and bounce cup, the cup cover comprises a lower cover, an upper cover and a rotary opening and closing structure which are hinged, the rotary opening and closing structure comprises a lock catch, a knob and at least one safety slide block, the lock catch and the knob are both connected on the lower cover and can rotate on the lower cover, the safety slide block is connected on the knob through a safety elastic piece, and the safety slide block can slide on the knob and compress the safety elastic piece; the lock catch is used for being matched and buckled with the upper cover; the safety slide block slides and compresses the safety elastic piece, so that the knob can lock the lock catch and can drive the lock catch to rotate to remove the buckle connection with the upper cover; the resilience of the safety elastic piece can release the locking of the knob and the lock catch. The utility model discloses can add insurance for the upper cover automatically, do not need manual insurance to eliminate the risk that the mistake touched the bowl cover switch and lead to the unexpected outflow of water in the cup.

Description

Cup cover and bouncing cup

Technical Field

The utility model relates to the technical field of cups, in particular to a cup cover and a bouncing cup.

Background

In the prior art, after the cup cover of the bouncing cup is buckled with the upper cover and the lower cover, the upper cover needs to be buckled with a safety ring manually, so that the accidental bouncing of the upper cover caused by the careless misoperation of a cup cover switch is avoided. The operation steps of manually buckling the safety ring are not only troublesome, but also easy to forget, most people only press the upper cover down, and thus the risk that water in the cup flows out accidentally is increased due to the fact that the cup cover switch is touched by mistake.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a cup cover, after upper cover and lower cover lock, can add insurance for the upper cover automatically, do not need manual insurance to eliminate the mistake and touch the risk that the cup cover switch leads to the unexpected outflow of water in the cup.

The technical solution of the utility model is to provide a cup cover, which comprises a hinged lower cover, an upper cover and a rotary opening and closing structure, wherein the rotary opening and closing structure comprises a lock catch, a knob and at least one safety slide block, the lock catch and the knob are both connected on the lower cover and can rotate on the lower cover, the safety slide block is connected on the knob through a safety elastic part, and the safety slide block can slide on the knob and compress the safety elastic part; the lock catch is used for being matched and buckled with the upper cover; the safety slide block slides and compresses the safety elastic piece, so that the knob can lock the lock catch and can drive the lock catch to rotate to remove the buckle connection with the upper cover; the resilience of the safety elastic piece can release the locking of the knob and the lock catch.

Compared with the prior art, the cup cover of the utility model has the advantages that: after the upper cover and the lower cover are buckled, the safety elastic piece rebounds or keeps a natural state, the knob and the lock catch are not locked, the lock catch cannot be driven to rotate by rotating the knob, the buckle connection between the lock catch and the upper cover cannot be released, and therefore water in the cup cannot flow out accidentally; only the safety slide block is slid and compressed to the safety elastic piece, the knob can be locked on the lock catch, and the knob can be rotated to drive the lock catch to rotate and remove the buckle connection between the lock catch and the upper cover.

Preferably, the lock catch and the knob are nested inside and outside or are oppositely arranged front and back; a first limiting groove is formed in the lock catch, a second limiting groove is formed in the knob, a limiting strip is arranged on the safety sliding block and is opposite to the second limiting groove, and the knob rotates relative to the lock catch to enable the first limiting groove to be opposite to the limiting strip; the safety slide block slides and compresses the safety elastic piece, so that the limiting strip can be embedded into the first limiting groove and the second limiting groove, and the knob and the lock catch are locked; the elastic safety element rebounds to enable the limiting strip to exit from the first limiting groove and the second limiting groove, so that the knob and the lock catch are unlocked. By adopting the structure, the knob and the lock catch can be locked only by embedding the limiting strip into the first limiting groove and the second limiting groove by sliding the safety slide block; the limiting strip can exit from the first limiting groove and the second limiting groove only by loosening the safety slide block, so that the knob and the lock catch are unlocked; simple structure and convenient operation.

Preferably, cover down and be provided with first slide, when the hasp is connected with upper cover cooperation buckle, spacing is relative with first slide, and spacing can slide with first slide cooperation, and first slide is used for leading spacing. By adopting the structure, when the upper cover is opened, namely the buckle connection between the lock catch and the upper cover is released, the sliding safety slide block can enable the limit strip to be accurately embedded into the first limit groove and the second limit groove, and the knob and the lock catch are quickly locked, so that the rotary knob can rotate to unlock the lock catch.

Preferably, a second slideway is arranged on the knob, the safety slide block is arranged in the second slideway and can slide along the second slideway, and the second limiting groove is connected with the second slideway or opposite to the second slideway in a spaced manner. By adopting the structure, the sliding safety slide block can enable the limiting strip to be accurately embedded into the second limiting groove, and the sliding safety slide block can quickly lock the knob and the lock catch as long as the first limiting groove is opposite to the limiting strip, so that the rotary knob can rotate to unlock the lock catch.

Preferably, the knob is provided with a position avoiding port which is opposite to the second limiting groove in a spaced manner; when the limiting strip exits from the first limiting groove and the second limiting groove, the end part of the safety slide block, which is opposite to the avoiding opening, extends out of the avoiding opening. By adopting the structure, the safety slide block can slide only by pressing the end part of the safety slide block extending out of the avoiding opening, and the operation is convenient.

Preferably, the lateral part of the safety slide block is provided with an upper limiting bulge, and when the end part of the safety slide block opposite to the avoidance port extends out of the avoidance port, the avoidance port limits the upper limiting bulge. By adopting the structure, the safety slide block can be prevented from sliding out of the position avoiding opening, and the safety elastic piece can still be in a compression state when the limiting strip exits from the first limiting groove and the second limiting groove, namely the safety slide block is in a state of being collided, so that the safety slide block is prevented from shaking unstably.

Preferably, the safety elastic part is a second spring, a second spring mounting lug is arranged at the end part of the safety slide block opposite to the second limiting groove, and two ends of the second spring are respectively connected with the second limiting groove and the second spring mounting lug. By adopting the structure, the structure is simple and the assembly is convenient.

Preferably, the rotary opening and closing structure further comprises a connecting shaft; the lower cover is provided with a circular wall, and two opposite sides of the circular wall are provided with shaft holes; the lock catch and the knob are arranged in the annular wall and are nested inside and outside, the two opposite sides of the lock catch are provided with circular arc-shaped first sliding grooves, and the two opposite sides of the knob are provided with circular arc-shaped second sliding grooves; the connecting shaft passes through the shaft hole, the first sliding groove and the second sliding groove, and the first sliding groove and the second sliding groove can slide relative to the connecting shaft. By adopting the structure, the connecting shaft is fixed by two opposite shaft holes on the annular wall; when the lock catch rotates, the first sliding groove can slide relative to the connecting shaft; when the knob rotates, the second sliding groove can slide relative to the connecting shaft; the assembly is simple, the structure is stable, and all parts are not easy to separate.

Preferably, the rotary opening and closing structure further comprises a lock catch elastic piece, the lock catch elastic piece is arranged between the lower cover and the lock catch, the lock catch can compress the lock catch elastic piece through rotation, and the lock catch elastic piece can enable the lock catch to reset through resilience. By adopting the structure, after the upper cover or the lock is opened, the elastic part of the lock catch rebounds to drive the lock catch to reset quickly, so that the lock catch is prevented from shifting to cause the knob to lock the lock catch difficultly.

Preferably, the elastic member of the lock catch is a first spring, the lower cover is provided with a first spring mounting position, the lock catch is provided with a first spring mounting lug, the first spring mounting position is embedded into the inner ring of the lock catch, the first spring is arranged along the inner ring of the lock catch, and two ends of the first spring are respectively abutted against the first spring mounting position and the first spring mounting lug. By adopting the structure, the first spring is arranged along the inner ring of the lock catch, and the resilience of the first spring can drive the lock catch to rotate reversely and reset quickly.

Preferably, the lower end of the upper cover is provided with a barb, the outer ring of the lock catch is provided with a barb buckling position, and the barb can be matched and buckled with the barb buckling position; the latch rotation enables the barb to be released from contact with the barb. By adopting the structure, the structure is simple, and the upper cover is buckled stably and reliably.

The to-be-solved technical problem of the utility model is to provide a bounce cup, behind the bowl cover lock of bounce cup, can add insurance for the bowl cover automatically, do not need manually to add insurance to eliminate the mistake and touch the risk that the bowl cover switch leads to the unexpected outflow of water in the cup.

The technical proposal of the utility model is to provide a bouncing cup, which comprises a cup body, and the cup cover is arranged on the rim of the cup body in a dismountable way.

Compared with the prior art, the utility model discloses a bounce cup has following advantage: the cup cover is arranged on the cup opening, after the upper cover and the lower cover are buckled, the safety elastic piece rebounds or keeps a natural state, the knob and the lock catch are not locked, the knob cannot be rotated to drive the lock catch to rotate, and the buckle connection between the lock catch and the upper cover cannot be released, so that the water in the cup cannot flow out accidentally, namely, the lower cover automatically adds safety to the upper cover without adding safety manually, and the risk that the water in the cup flows out accidentally due to mistakenly touching the switch of the cup cover is eliminated; only sliding the safety slide block and enabling the safety slide block to compress the safety elastic piece can the knob lock the lock catch, and at the moment, rotating the knob can drive the lock catch to rotate and remove the buckle connection between the lock catch and the upper cover, so that the upper cover is popped up.

Drawings

Fig. 1 is a schematic structural view of an embodiment 1 of the bouncing cup of the present invention.

Fig. 2 is an exploded view of the embodiment 1 of the cup lid of the present invention.

Fig. 3 is another exploded view of the rotary switch structure of fig. 2.

Fig. 4 is an explosion view of the embodiment 1 of the cup lid of the present invention in a safety state.

Fig. 5 is an inner structure view of the rotary opening and closing structure of fig. 4.

Fig. 6 is an exploded view of the embodiment 1 of the cup lid of the present invention in an arming state.

Fig. 7 is an inner side structure view of the rotary opening and closing structure of fig. 6.

As shown in the figure: 1. the cup comprises a cup body, 2 parts of a cup cover, 2-1 parts of an upper cover, 2-11 parts of an inverted hook, 2-2 parts of a lower cover, 2-21 parts of a first spring installation position, 2-22 parts of a first slide way, 3 parts of a rotary opening and closing structure, 3-1 parts of a first spring, 3-2 parts of a lock catch, 3-21 parts of a first slide way, 3-22 parts of an inverted hook buckling position, 3-23 parts of a first limiting groove, 3-24 parts of a first spring installation lug, 3-3 parts of a knob, 3-31 parts of a second slide way, 3-32 parts of a second limiting groove, 3-33 parts of a second slide way, 3-34 parts of an inverted position avoiding opening, 3-4 parts of a safety slide block, 3-41 parts of a limiting strip, 3-42 parts of a second spring installation lug, 3-43 parts of an upper limiting bulge, 3-5 parts of a second spring, 3-6 parts of a connecting shaft, 3-7 parts of an end cover, 3-8 parts of an annular wall, 3-81 parts of an annular wall and a shaft hole.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Further, when a representation such as "… at least one" appears after the list of listed features, the entire listed feature is modified rather than modifying an individual element in the list.

Example 1:

as shown in figure 1, the bouncing cup of the utility model comprises a cup body 1, a cup cover 2 is arranged on the cup opening of the cup body 1, the cup cover 2 comprises a lower cover 2-2 and an upper cover 2-1, the lower cover 2-2 is in threaded connection with the cup opening, the rear side of the upper cover 2-1 is pivoted on the top of the rear side of the lower cover 2-2 through a rotating shaft, the upper cover 2-1 can be turned over up and down, a barb 2-11 is arranged at the lower end of the front side of the upper cover 2-1, a rotary opening and closing structure 3 is arranged at the front side of the lower cover 2-2, the rotary opening and closing structure 3 is opposite to the barb 2-11 up and down, the barb 2-11 can be matched with the rotary opening and closing structure 3 through downward turning of the upper cover 2-1, namely, the upper cover is buckled on the lower cover, and the rotary opening and closing structure 3 can be released from connection of the barb 2-11 and the rotary opening and closing structure 3, so that the upper cover is popped upwards, namely, the upper cover 2 is opened.

As shown in figures 2 to 7, the lower cover 2-2 is provided with a circular wall 3-8, two opposite sides of the circular wall 3-8 are provided with shaft holes 3-81, and the rotary opening and closing structure 3 is nested in the inner cavity of the circular wall 3-8. The rotary opening and closing structure 3 comprises a first spring 3-1, a lock catch 3-2, a knob 3-3, a safety slide block 3-4, a second spring 3-5, a connecting shaft 3-6 and an end cover 3-7. The lock catch 3-2 and the knob 3-3 are nested inside and outside, the two opposite sides of the lock catch 3-2 are respectively provided with a circular arc-shaped first sliding groove 3-21, the two opposite sides of the knob 3-3 are respectively provided with a circular arc-shaped second sliding groove 3-31, and the connecting shaft 3-6 penetrates through the shaft hole 3-81, the first sliding groove 3-21 and the second sliding groove 3-31. The lock catch 3-2 and the knob 3-3 can rotate relative to the annular wall 3-8, and when the lock catch 3-2 rotates relative to the annular wall 3-8, the first sliding groove 3-21 and the connecting shaft 3-6 slide relatively; when the knob 3-3 rotates relative to the annular wall 3-8, the second sliding groove 3-31 and the connecting shaft 3-6 slide relatively.

A first spring installation position 2-21 is arranged in the annular wall 3-8, a first spring installation bump 3-24 is arranged on the lock catch 3-2, the first spring installation position 2-21 is embedded into an inner ring of the lock catch 3-2, the first spring 3-1 is arranged along the inner ring of the lock catch 3-2, and two ends of the first spring 3-1 are respectively abutted against the first spring installation position 2-21 and the first spring installation bump 3-24. The outer ring of the lock catch 3-2 is provided with a barb buckling position 3-22, and the barb 2-11 can be matched, buckled and connected with the barb buckling position 3-22. When the knob 3-3 rotates relative to the annular wall 3-8, the barb buckling position 3-22 can be separated from the barb 2-11, and the first spring 3-1 is compressed; the resilience of the first spring 3-1 can reset the lock catch 3-2. When the upper cover 2-1 is turned downwards to enable the barb 2-11 to be abutted against the edge of the barb buckling position 3-22, the knob 3-3 can also be rotated relative to the annular wall 3-8 and the first spring 3-1 is compressed, and after the barb 2-11 enters the barb buckling position 3-22, the first spring 3-1 rebounds to enable the buckle 3-2 to reset, namely the barb 2-11 is buckled with the barb buckling position 3-22.

The knob 3-3 is provided with a second slide way 3-33, a second limiting groove 3-32 and a position avoiding opening 3-34, and the second limiting groove 3-32 and the position avoiding opening 3-34 are respectively positioned at two ends of the second slide way 3-33 and are connected with or opposite to the second slide way 3-33 in a spaced manner. The lock catch 3-2 is provided with a first limiting groove 3-23, and when the barb 2-11 is buckled with the barb buckling position 3-22, the first limiting groove 3-23 is connected with a second limiting groove 3-32. If the first limiting groove 3-23 and the second limiting groove 3-32 are dislocated, the knob 3-3 rotates relative to the lock catch 3-2 to enable the first limiting groove 3-23 and the second limiting groove 3-32 to be connected.

The safety slide block 3-4 is arranged in the second slide way 3-33 and can slide along the second slide way 3-33. The end part of the safety slide block 3-4 opposite to the second limit groove 3-32 is provided with a second spring mounting lug 3-42 and a limit strip 3-41, the second spring 3-5 is arranged between the second limit groove 3-32 and the second spring mounting lug 3-42, and when the second spring 3-5 is in a natural state, the end part of the safety slide block 3-4 opposite to the avoidance port 3-34 extends out of the avoidance port 3-34.

When the barb 2-11 is buckled with the barb buckling position 3-22, the first limiting groove 3-23 is connected with the second limiting groove 3-32 and is opposite to the limiting strip 3-41, the end part of the safety slide block 3-4 extending out of the barb opening 3-34 is pressed, the safety slide block 3-4 slides along the second slide way 3-33 and compresses the second spring 3-5, the limiting strip 3-41 is embedded into the first limiting groove 3-23 and the second limiting groove 3-32, the knob 3-3 and the latch 3-2 are locked, at the moment, the knob 3-3 can be rotated, and the knob 3-3 drives the latch 3-2 to rotate until the barb buckling position 3-22 is separated from the barb 2-11.

The first slide way 2-22 is arranged in the annular wall 3-8, when the barb 2-11 is buckled with the barb buckling position 3-22, the limiting strip 3-41 is opposite to the first slide way 2-22, in the process of pressing the safety slide block 3-4, the limiting strip 3-41 can enter the first slide way 2-22 and slide along the first slide way 2-22, the first slide way 2-22 guides the limiting strip 3-41, so that the limiting strip 3-41 can be quickly embedded into the first limiting groove 3-23 and the second limiting groove 3-32, and the knob 3-3 and the lock catch 3-2 are locked. When the second spring 3-5 rebounds, the limiting strip 3-41 also slides along the first slide way 2-22 and exits the first limiting groove 3-23 and the second limiting groove 3-32, so that the knob 3-3 and the lock catch 3-2 are unlocked, and at the moment, the end part of the safety slide block 3-4, which is opposite to the avoidance opening 3-34, extends out of the avoidance opening 3-34 again.

The side part of the safety slide block 3-4 is also provided with an upper limiting bulge 3-43, when the end part of the safety slide block 3-4 opposite to the avoiding opening 3-34 extends out of the avoiding opening 3-34, the avoiding opening 3-34 limits the upper limiting bulge 3-43, and the safety slide block 3-4 is prevented from falling off the second slide way 3-33.

When the bouncing cup is used, after the upper cover and the lower cover are buckled, the second spring 3-5 rebounds or keeps a natural state, the knob 3-3 and the lock catch 3-2 are not locked, the rotary knob 3-3 cannot drive the lock catch 3-2 to rotate, and the buckle connection between the lock catch 3-2 and the upper cover cannot be released, so that water in the cup cannot flow out accidentally, namely, the upper cover is automatically provided with safety, and the safety is not required to be added manually, so that the risk that the water in the cup flows out accidentally due to the fact that the cup cover switch is touched by mistake is eliminated; the knob 3-3 and the latch 3-2 can be locked only by pressing the safety slide block 3-4 to enable the limiting strip 3-41 to be embedded into the first limiting groove 3-23 and the second limiting groove 3-32, and at the moment, the latch 3-2 can be driven to rotate by rotating the knob 3-3 and the buckle connection between the latch 3-2 and the upper cover is released, so that the upper cover is ejected.

Example 2:

the cup cover of the embodiment is different from the embodiment 1 in that two safety slide blocks are oppositely arranged on a knob 3-3, the knob 3-3 is correspondingly provided with two second limiting grooves corresponding to the two safety slide blocks one by one, a lock catch 3-2 is provided with two first limiting grooves corresponding to the two safety slide blocks one by one, the two first limiting grooves and the two second limiting grooves correspond one by one and form two limiting groove combinations, when the two safety slide blocks are respectively embedded into the corresponding two limiting groove combinations, the knob 3-3 and the lock catch 3-2 are reliably locked, and when the two safety slide blocks are respectively separated from the two limiting groove combinations, the knob 3-3 and the lock catch 3-2 are unlocked. The cover opening operation is also convenient, two safety slide blocks can be pressed by two fingers simultaneously to enable the two safety slide blocks to be respectively embedded into the corresponding two limiting grooves to be combined, the knob 3-3 and the lock catch 3-2 are locked, and then the knob 3-3 is rotated to drive the lock catch 3-2 to rotate until the lock catch 3-2 is connected with the upper cover in a releasing manner.

Example 3:

the cup cover of the embodiment is different from the cup cover of the embodiment 1 in that the side wall of the annular wall 3-8 is long, the enclosed inner cavity is large, the knob 3-3 and the lock catch 3-2 are embedded in the inner cavity of the annular wall 3-8 and are axially limited by the annular wall 3-8, the outer side walls of the knob 3-3 and the lock catch 3-2 are in sliding contact with the inner side wall of the annular wall 3-8, namely the knob 3-3 and the lock catch 3-2 can circumferentially rotate relative to the annular wall 3-8, the knob 3-3 and the lock catch 3-2 are oppositely arranged in the inner cavity of the annular wall 3-8 in the front-back direction, and the rear part of the knob 3-3 extends out of the annular wall 3-8, so that the knob 3-3 can be conveniently rotated. The knob 3-3 rotates relative to the lock catch 3-2 to enable the first limiting groove 3-23 to be opposite to the second limiting groove 3-32, so that the limiting strip 3-41 can be simultaneously embedded into the first limiting groove 3-23 and the second limiting groove 3-32 to lock the knob 3-3 and the lock catch 3-2 by pressing the safety slide block 3-4, and at the moment, the lock catch 3-2 can be driven to rotate by rotating the knob 3-3, and the lock catch 3-2 is enabled to be connected with the upper cover in a releasing manner.

Example 4:

the cup cover of the embodiment is different from the embodiment 1 in that the lock catch 3-2 and the knob 3-3 are respectively provided with a limiting hole, the knob 3-3 rotates relative to the lock catch 3-2 to enable the lock catch 3-2 to be opposite to the limiting hole on the knob 3-3, and the safety slide block 3-4 is provided with a limiting column. The limiting column can be simultaneously inserted into the limiting holes in the lock catch 3-2 and the knob 3-3 by pressing the safety slide block 3-4 to lock the knob 3-3 and the lock catch 3-2, and at the moment, the lock catch 3-2 can be driven to rotate by rotating the knob 3-3, so that the lock catch 3-2 is not connected with the upper cover in a buckled mode.

The above are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims (12)

1. A cup cover comprises a lower cover (2-2) and an upper cover (2-1) which are hinged; the safety device is characterized by further comprising a rotary opening and closing structure (3), wherein the rotary opening and closing structure (3) comprises a lock catch (3-2), a knob (3-3) and at least one safety slide block (3-4), the lock catch (3-2) and the knob (3-3) are both connected to the lower cover (2-2) and can rotate on the lower cover (2-2), the safety slide block (3-4) is connected to the knob (3-3) through a safety elastic piece, and the safety slide block (3-4) can slide on the knob (3-3) and compress the safety elastic piece; the lock catch (3-2) is used for being matched and buckled with the upper cover (2-1); the safety slide block (3-4) slides and compresses the safety elastic piece, so that the knob (3-3) can lock the lock catch (3-2), and the knob (3-3) can drive the lock catch (3-2) to rotate to release the buckle connection with the upper cover (2-1); the resilience of the safety elastic piece can unlock the knob (3-3) and the lock catch (3-2).

2. The cup cover according to claim 1, characterized in that the lock catch (3-2) and the knob (3-3) are nested inside and outside or arranged in a front-back opposite manner; a first limiting groove (3-23) is formed in the lock catch (3-2), a second limiting groove (3-32) is formed in the knob (3-3), a limiting strip (3-41) is arranged on the safety slide block (3-4), the limiting strip (3-41) is opposite to the second limiting groove (3-32), and the first limiting groove (3-23) is opposite to the limiting strip (3-41) due to the fact that the knob (3-3) rotates relative to the lock catch (3-2); the safety slide block (3-4) slides and compresses the safety elastic piece, so that the limiting strip (3-41) can be embedded into the first limiting groove (3-23) and the second limiting groove (3-32), and the knob (3-3) and the lock catch (3-2) are locked; the resilience of the safety elastic part can enable the limiting strips (3-41) to exit from the first limiting grooves (3-23) and the second limiting grooves (3-32), so that the knob (3-3) and the lock catch (3-2) are unlocked.

3. The cup cover according to claim 2, characterized in that a first slideway (2-22) is arranged on the lower cover (2-2), when the lock catch (3-2) is in fit snap connection with the upper cover (2-1), the limit strip (3-41) is opposite to the first slideway (2-22), the limit strip (3-41) can be in fit sliding with the first slideway (2-22), and the first slideway (2-22) is used for guiding the limit strip (3-41).

4. The cup cover according to claim 2, characterized in that the knob (3-3) is provided with a second slideway (3-33), the safety slide block (3-4) is arranged in the second slideway (3-33) and can slide along the second slideway (3-33), and the second limit groove (3-32) is connected with or spaced from and opposite to the second slideway (3-33).

5. The cup cover according to claim 2, characterized in that the knob (3-3) is provided with a position avoiding opening (3-34), and the position avoiding opening (3-34) is opposite to the second limiting groove (3-32) in a spaced manner; when the limiting strips (3-41) exit from the first limiting grooves (3-23) and the second limiting grooves (3-32), the end parts of the safety slide blocks (3-4) opposite to the avoidance ports (3-34) extend out of the avoidance ports (3-34).

6. The cup cover according to claim 5, wherein an upper limit bulge (3-43) is arranged on the side of the safety slide block (3-4), and when the end part of the safety slide block (3-4) opposite to the avoiding opening (3-34) extends out of the avoiding opening (3-34), the avoiding opening (3-34) limits the upper limit bulge (3-43).

7. The cup cover according to claim 2, characterized in that the safety elastic member is a second spring (3-5), a second spring mounting protrusion (3-42) is disposed at an end of the safety slide block (3-4) opposite to the second limit groove (3-32), and two ends of the second spring (3-5) are respectively connected with the second limit groove (3-32) and the second spring mounting protrusion (3-42).

8. The cup cover according to claim 1, characterized in that the rotary opening and closing structure (3) further comprises a connecting shaft (3-6); the lower cover (2-2) is provided with a circular wall (3-8), and two opposite sides of the circular wall (3-8) are provided with shaft holes (3-81); the lock catch (3-2) and the knob (3-3) are both arranged in the annular wall (3-8) and are nested inside and outside, the two opposite sides of the lock catch (3-2) are both provided with circular arc-shaped first sliding chutes (3-21), and the two opposite sides of the knob (3-3) are both provided with circular arc-shaped second sliding chutes (3-31); the connecting shaft (3-6) penetrates through the shaft hole (3-81), the first sliding groove (3-21) and the second sliding groove (3-31), and both the first sliding groove (3-21) and the second sliding groove (3-31) can slide relative to the connecting shaft (3-6).

9. The cup cover according to claim 1, characterized in that the rotary opening and closing structure (3) further comprises a latch elastic member, the latch elastic member is arranged between the lower cover (2-2) and the latch (3-2), the latch (3-2) can compress the latch elastic member by rotation, and the latch elastic member rebounds to reset the latch (3-2).

10. The cup cover according to claim 9, wherein the elastic member of the latch is a first spring (3-1), the lower cover (2-2) is provided with a first spring mounting location (2-21), the latch (3-2) is provided with a first spring mounting projection (3-24), the first spring mounting location (2-21) is embedded in an inner ring of the latch (3-2), the first spring (3-1) is arranged along the inner ring of the latch (3-2), and two ends of the first spring (3-1) are respectively abutted against the first spring mounting location (2-21) and the first spring mounting projection (3-24).

11. The cup cover according to claim 1, characterized in that the lower end of the upper cover (2-1) is provided with a barb (2-11), the outer ring of the lock catch (3-2) is provided with a barb buckling position (3-22), and the barb (2-11) can be matched and buckled with the barb buckling position (3-22); the lock catch (3-2) can rotate to enable the barb catch position (3-22) to be separated from contact with the barb (2-11).

12. A bouncing cup, comprising a cup body (1), characterized in that the cup cover of any one of the claims 1 to 11 is detachably arranged on the rim of the cup body (1).

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