CN113397404B

CN113397404B - Uncapping damping structure, using method thereof and thermos bottle

Info

Publication number: CN113397404B
Application number: CN202110771810.7A
Authority: CN
Inventors: 王陆斌; 陈陆生
Original assignee: Hunan Kangtieer Home Technology Development Co ltd
Current assignee: Hunan Kangtieer Home Technology Development Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2023-05-09
Anticipated expiration: 2041-07-08
Also published as: CN113397404A

Abstract

The invention discloses a cover opening damping structure and a using method thereof, and a vacuum bottle, wherein the cover opening damping structure comprises a shell, a cover body is hinged at the top opening of the shell, a cover opening elastic piece is arranged at the hinge position of the cover body for automatically ejecting the cover body, a handle is fixed on the shell, one end, close to the cover body, of the handle is rotationally connected with a damping button, the damping button is connected with a button elastic piece for automatically resetting the damping button when the damping button is loosened, the damping button is provided with a pressing end and a supporting end, and the upper part of the supporting end of the damping button is used for buffering in the opening process of the cover body in a matched manner; the shell is rotationally connected with a clamping piece which is connected with a clamping elastic piece; the other end of the clamping piece is matched with the lower part of the abutting end of the damping button, so that the clamping piece is driven to rotate when the pressing end of the damping button is pressed to release the clamping, and the cover body is slowly opened. The uncapping damping structure can prevent hot water from being thrown out when uncapping, and has the advantages of convenience in operation, safety in use and the like.

Description

Uncapping damping structure, using method thereof and thermos bottle

Technical Field

The invention relates to the technical field of thermos bottles, in particular to a cover opening damping structure, a using method of the cover opening damping structure and a thermos bottle provided with the cover opening damping structure.

Background

The existing thermos bottle with a one-key starting function comprises a bottle body, a cover body hinged to the opening end of the bottle body, a torsion spring used for automatically ejecting the cover body, and a button used for opening the cover body by one key. When the button is pressed to open the cover body, the cover body is quickly sprung open under the action of the torsion force of the torsion spring, so that the condensed hot water on the bottom surface of the cover body is easy to be thrown out to scald a user.

Disclosure of Invention

The invention provides a cover opening damping structure which can prevent hot water from being thrown out when a cover is opened and has the advantages of convenience in operation, safety in use and the like.

The invention provides a cover opening damping structure, which comprises a shell, wherein a cover body is hinged at the top opening of the shell, a cover opening elastic piece is arranged at the hinge position of the cover body and used for automatically bouncing the cover body, a handle is fixed on the shell, one end, close to the cover body, of the handle is rotatably connected with a damping button, the damping button is connected with a button elastic piece and used for automatically resetting the damping button when the damping button is loosened, the damping button is provided with a pressing end and a supporting end, and the upper part of the supporting end of the damping button is used for buffering in the opening process of the cover body in a matched manner, so that the cover opening speed is slowed down; the shell is rotationally connected with a clamping piece, and the clamping piece is connected with a clamping elastic piece so as to provide elasticity for clamping one end of the clamping piece to keep the cover body in a closed state; the other end of the clamping piece is matched with the lower part of the propping end of the damping button, so that the clamping piece is driven to rotate to release clamping when the pressing end of the damping button is pressed, and the cover body is slowly opened under the combined action of the cover opening elastic piece and the upper part of the propping end of the damping button.

Further, the hinge of casing has the bulge, and the shaft hole has been seted up to the bulge, wears to be equipped with the articulated shaft in the shaft hole, and the elastic component that uncaps adopts the torsional spring, and the torsional spring cover is located on the articulated shaft, and the articulated department of lid has the articulated seat, and the articulated seat rotates through the articulated shaft to be connected on the bulge, and one torsion end of torsional spring supports to hold on the bulge, and another torsion end supports to hold on the articulated seat to provide the lid and rotate the torsional force of opening around the articulated shaft.

Further, the damping button comprises a button part, a connecting part, a damping part and a pushing part, wherein one end of the button part is fixed on the connecting part to form a button end, the damping part and the pushing part are respectively fixed on the upper surface and the lower surface of the other end of the connecting part, and the damping part and the pushing part form a supporting end.

Further, the hinge seat of the cover body is provided with a buffer part, so that the buffer part is contacted with the damping part to realize buffer in the opening process of the cover body.

Further, the pushing part is matched with the corresponding end of the clamping piece so as to drive the clamping piece to rotate and release the clamping.

Further, one end of the connecting part, which is close to the pushing part, is rotationally connected to the handle through a rotating shaft.

Further, a first opening and a second opening are formed in one end, close to the cover body, of the handle, a partition wall is formed between the first opening and the second opening, a mounting cavity communicated with the first opening and the second opening is formed in the handle, and the mounting cavity penetrates through the end face of the handle to form an opening for placing a damping button; through holes for the rotating shaft to pass through are formed in the two side walls of the mounting cavity formed in the handle, through holes for the rotating shaft to pass through are formed in the damping button, and the damping button is rotatably arranged in the mounting cavity through the rotating shaft; the connecting part of the damping button is propped against the partition wall to limit; the connecting part and the pushing part are accommodated in the mounting cavity, the damping part extends outwards from the first opening, and the button part protrudes outwards from the second opening.

Further, the button elastic piece adopts a pressure spring, and the pressure spring is propped between the button part and the handle; or the button elastic piece adopts a torsion spring arranged on the rotating shaft or a tension spring connected to the pushing part.

Further, one end of the clamping piece is provided with a clamping hook, the cover body is provided with a protrusion which is matched with the clamping hook to clamp, and the clamping hook hooks the protrusion to limit the cover body to automatically spring open.

Further, a storage shell for accommodating the clamping piece is formed on the shell, and an inlet is formed in the bottom of the storage shell for accommodating the clamping piece; the inner side wall of the top of the storage shell is provided with a clamping hook hole, and the outer side wall of the bottom of the storage shell is provided with an extending hole; the clamping piece adopts a stepped clamping structure, two sides of the middle part of the stepped clamping structure are provided with convex shafts, two opposite side walls of the storage shell are provided with convex shaft holes, and the convex shafts are clamped into the convex shaft holes to realize the rotary connection of the stepped clamping structure in the storage shell; one end of the clamping hook of the ladder-shaped clamping structure extends out of the clamping hook hole to be clamped in a matched mode with the protrusion, and the other end of the ladder-shaped clamping structure extends out of the extending hole.

Further, the clamping elastic piece adopts a pressure spring, one end of the pressure spring is propped against the inner wall of the storage shell, and the other end of the pressure spring is propped against the guide post of the stepped clamping structure; alternatively, the retaining elastic member is replaced by an elastic structure attached to the retaining member.

The invention also provides a using method of the cover opening damping structure, wherein the clamping piece can ensure that one end of the clamping piece stably clamps the cover body to keep a closed state under the action of the clamping elastic piece; pressing the pressing end of the damping button to overcome the elasticity of the button elastic piece, wherein the damping button correspondingly rotates by a preset angle, the lower part of the abutting end of the damping button abuts against the corresponding end of the clamping piece and overcomes the elasticity of the clamping elastic piece, so that the clamping piece is driven to correspondingly rotate by a preset angle, and the clamping piece releases the clamping of the cover body; in the rotation process of the damping button, the upper part of the abutting end of the damping button contacts the corresponding edge of the cover body, and the cover body is slowly opened under the elastic action of the cover opening elastic piece and the buffer action of the upper part of the abutting end of the damping button; when the cover body needs to be closed, the cover body is pushed to overcome the elasticity of the clamping elastic piece, so that the clamping part of the cover body is clamped into the clamping end of the clamping elastic piece.

The invention also provides a thermos bottle, which comprises the inner container bottle and the uncapping damping structure, wherein the inner container bottle is arranged in the shell of the uncapping damping structure, and the cover body is arranged on the bottle mouth of the inner container bottle in a covering way.

Further, the housing includes detachably connected upper and lower shells.

The invention has the beneficial effects that:

according to the cover opening damping structure, the rotatable clamping piece and the clamping elastic piece matched with the rotatable clamping piece are arranged on the shell, one end of the clamping piece can be ensured to be stably clamped with the cover body to keep a closed state under the action of the clamping elastic piece, and the cover body is prevented from automatically bouncing off under the action of the cover opening elastic piece. Through setting up rotatable damping button and matched with button elastic component on the handle, through pressing the pressing end of damping button, damping button rotates and makes damping button's support and hold the end lower part and drive the card and hold the piece and rotate in order to release the card and hold, the lid is under the elasticity effect of uncapping the elastic component to and damping button supports under the cushioning effect of holding end upper portion and slowly opens, uncaps the process and is relaxed, prevents to lead to lid hot water to throw away and scald the user because of uncapping speed is too fast. The uncapping damping structure has the advantages of convenience in operation, safety in use and the like.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 is a schematic cross-sectional view of an open-cover damping structure of the present invention in a closed state;

FIG. 2 is a schematic cross-sectional view of the open-cover damping structure of the present invention in an open state;

FIG. 3 is an exploded view of the open-cover damping structure of the present invention;

FIG. 4 is a schematic cross-sectional view of the shell of the open-cover damping structure of the present invention;

FIG. 5 is a front view of a vacuum flask equipped with the open-cover damping structure of the present invention;

fig. 6 is a schematic cross-sectional view of a thermos flask equipped with the open-cover damping structure of the present invention.

Legend description: the casing 1, the lid 2, the lid opening elastic member 3, the handle 4, the damper button 5, the button elastic member 6, the holding member 7, the holding elastic member 8, the protruding portion 11, the hinge shaft 12, the hinge seat 21, the button portion 51, the connecting portion 52, the damper portion 53, the pushing portion 54, the buffer portion 22, the rotation shaft 55, the first opening 41, the second opening 42, the partition wall 43, the installation cavity 40, the through hole 44, the hook 71, the protrusion 23, the storage case 13, the placement opening 14, the hook hole 15, the protruding hole 19, the protruding shaft 72, the guide post 73, the protruding shaft hole 16, the inner flask 9, the upper case 17, and the lower case 18.

Detailed Description

Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.

As shown in fig. 1 and 2, an embodiment of the present invention provides a cover opening damping structure, which includes a housing 1, a cover 2 is hinged to a top opening of the housing 1, and a cover opening elastic member 3 is provided at a hinge of the cover 2 for automatically ejecting the cover 2. The handle 4 is fixed on the shell 1, and the handle 4 and the shell 1 are divided into two parts to be fixedly installed together, or the handle 4 and the shell 1 are integrally connected. One end of the handle 4, which is close to the cover body 2, is rotatably connected with a damping button 5, and the damping button 5 is connected with a button elastic piece 6, so that the damping button 5 automatically resets when the damping button 5 is loosened. The damping button 5 has a pressing end and a holding end. The upper part of the abutting end of the damping button 5 is used for buffering in the process of opening the cover body 2, so that the cover opening speed is reduced. The shell 1 is rotatably connected with a clamping piece 7, and the clamping piece 7 is connected with a clamping elastic piece 8 to provide elasticity for keeping the clamping cover body 2 at one end of the clamping piece 7 in a closed state. The other end of the clamping piece 7 is matched with the lower part of the abutting end of the damping button 5, so that the clamping piece 7 is driven to rotate to release clamping when the pressing end of the damping button 5 is pressed, and the cover body 2 is slowly opened under the combined action of the cover opening elastic piece 3 and the upper part of the abutting end of the damping button 5.

According to the cover opening damping structure, the rotatable clamping piece 7 and the clamping elastic piece 8 matched with the rotatable clamping piece are arranged on the shell 1, the clamping piece 7 can ensure that one end of the clamping piece 7 is stably clamped with the cover body 2 to keep a closed state under the action of the clamping elastic piece 8, and the cover body 2 is prevented from automatically bouncing off under the action of the cover opening elastic piece 3. Through setting up rotatable damping button 5 and matched with button elastic component 6 on handle 4, through pressing the pressing end of damping button 5, damping button 5 rotates and makes damping button 5 support the lower part of holding the end and drive the card and hold piece 7 rotation in order to release the card and hold, and lid 2 is under the elasticity effect of uncapping elastic component 3 to and damping button 5 support under the cushioning effect of holding end upper portion and slowly open, uncap the process and release, prevent to throw away and scald the user because of uncapping the too fast lid 2 hot water that leads to of speed. The uncapping damping structure has the advantages of convenience in operation, safety in use and the like.

As shown in fig. 3, in this embodiment, the hinge part of the housing 1 has a protruding part 11, the protruding part 11 is provided with a shaft hole, a hinge shaft 12 is penetrated in the shaft hole, and the cover-opening elastic member 3 adopts a torsion spring, which is sleeved on the hinge shaft 12. The hinge part of the cover body 2 is provided with a hinge seat 21, and the hinge seat 21 is rotatably connected to the protruding part 11 through a hinge shaft 12. One torsion end of the torsion spring is abutted against the protruding part 11, and the other torsion end is abutted against the hinge seat 21 so as to provide torsion force for opening the cover body 2 by rotating around the hinge shaft 12. The adoption of the structure of the bulge 11, the hinge seat 21, the hinge shaft 12 and the torsion spring which are matched with each other is convenient for assembly, has high structural strength, and is easy to realize automatic rotation opening of the cover body 2.

As shown in fig. 1, in the present embodiment, the damper button 5 includes a button portion 51, a connection portion 52, a damper portion 53, and a pushing portion 54. The button portion 51 is fixed to one end of the connection portion 52 to form a button end, and the damping portion 53 and the pushing portion 54 are fixed to the upper and lower surfaces of the other end of the connection portion 52, respectively, and the damping portion 53 and the pushing portion 54 form a holding end. The button part 51 has a convex spherical structure to improve the pressing comfort. The hinge seat 21 of the cover 2 is provided with a buffer part 22, so that the buffer part 22 contacts with the damping part 53 to realize buffer during the opening process of the cover 2. The pushing portion 54 cooperates with a corresponding end of the clamping member 7 to drive the clamping member 7 to rotate so as to release the clamping. One end of the connecting portion 52, which is close to the pushing portion 54, is rotatably connected to the handle 4 through the rotating shaft 55, so that the pressing of the button portion 51 drives the clamping member 7 to rotate more labor-saving. As shown in fig. 2 and 3, a first opening 41 and a second opening 42 are formed at one end of the handle 4 near the cover 2, a partition wall 43 is formed between the first opening 41 and the second opening 42, a mounting cavity 40 communicating the first opening 41 and the second opening 42 is formed on the handle 4, and the mounting cavity 40 penetrates through an end face of the handle 4 to form an opening for placing the damping button 5. Through holes 44 for the rotation shaft 55 to pass through are formed on the two side walls of the mounting cavity 40 formed on the handle 4, and through holes for the rotation shaft 55 to pass through are formed on the damping button 5. The damper button 5 is placed from the end surface opening of the mounting cavity 40 such that the damper portion 53 protrudes outwardly from the first opening 41, the button portion 51 protrudes outwardly from the second opening 42, the through hole 44 is aligned with the through hole, and then the rotation shaft 55 is inserted into the through hole 44 and the through hole, thereby facilitating the assembly of the damper button 5 into the mounting cavity 40 of the handle 4. The button elastic member 6 adopts a compression spring, and the compression spring is abutted between the button part 51 and the handle 4. It will be appreciated that the button elastic member 6 may also use a torsion spring provided on the rotation shaft 55 or a tension spring connected to the pushing portion 54 to provide elastic force. In addition, the button elastic member 6 may also adopt a plastic elastic structure, and one end of the plastic elastic structure is connected to the button portion 51; or one end of the plastic elastic structure is connected to the inner wall of the mounting cavity 40 of the handle 4; alternatively, the plastic elastic structure is directly abutted between the handle 4 and the button portion 51. The connecting portion 52 of the damper button 5 abuts against the partition wall 43 to limit. The connecting portion 52 and the pushing portion 54 are accommodated in the mounting cavity 40, the damping portion 53 protrudes outward from the first opening 41, and the button portion 51 protrudes outward from the second opening 42. The structure that the mounting cavity 40, the first opening 41 and the second opening 42 are formed in the handle 4 is adopted, so that the damping button 5 is conveniently distributed in a limited space, and the damping part 53 and the pushing part 54 of the damping button 5 are conveniently in linkage fit with the buffer part 22 and the clamping piece 7 respectively.

As shown in fig. 1 and 4, one end of the clamping piece 7 is provided with a clamping hook 71, the cover body 2 is provided with a protrusion 23 which is matched and clamped with the clamping hook 71, and the clamping hook 71 hooks the protrusion 23 so as to limit the cover body 2 to automatically spring open. The housing 1 is formed with a housing case 13 for accommodating the clamping member 7, and an inlet 14 is formed at the bottom of the housing case 13 for accommodating the clamping member 7. The top inside wall of the storage shell 13 is provided with a clamping hook hole 15, and the bottom outside wall of the storage shell 13 is provided with an extension hole 19. The clamping piece 7 adopts a stepped clamping structure, two sides of the middle part of the stepped clamping structure are provided with convex shafts 72, two opposite side walls of the storage shell 13 are provided with convex shaft holes 16, the convex shafts 72 are clamped into the convex shaft holes 16 to realize that the stepped clamping structure is rotationally connected in the storage shell 13, one end of a clamping hook 71 of the stepped clamping structure extends out of the clamping hook hole 15 to be matched and clamped with the protrusion 23, and the other end of the stepped clamping structure extends out of the extending hole 19 to be correspondingly matched with the pushing part 54. The clamping elastic piece 8 adopts a pressure spring, one end of the pressure spring is propped against the inner wall of the storage shell 13, and the other end of the pressure spring is propped against the guide post 73 of the stepped clamping structure. It will be appreciated that the retaining elastic member 8 may also employ a tension spring or torsion spring to effect the return of the retaining member 7. In addition, the retaining elastic member 8 may be replaced by an elastic structure connected to the retaining member 7. The clamping piece 7 with the structure is convenient to load into the ladder-shaped clamping structure from the placement port 14, is clamped into the protruding shaft hole 16 through the protruding shaft 72 to realize rotary connection, and then is sleeved on the guide post 73 to forcefully compress the pressure spring, so that one end of the pressure spring is propped against the inner wall of the storage shell 13 to finish installation, and can be quickly installed without tools. In addition, the ladder-shaped clamping structure with the clamping hook 71 at one end can stably clamp the cover body 2 under the action of the elastic force of the pressure spring, and the clamping can be released only by pressing the damping button 5 when the cover body 2 needs to be opened.

As shown in fig. 1 and fig. 2, the present invention further provides a method for using the cover opening damping structure, where the clamping member 7 can ensure that one end of the clamping member 7 stably clamps the cover 2 to keep a closed state under the action of the clamping elastic member 8. Pressing the pressing end of the damping button 5, overcoming the elasticity of the button elastic piece 6, correspondingly rotating the damping button 5 by a preset angle, abutting the corresponding end of the clamping piece 7 by the lower part of the abutting end of the damping button 5, overcoming the elasticity of the clamping elastic piece 8, and driving the clamping piece 7 to correspondingly rotate by a preset angle, so that the clamping piece 7 releases the clamping of the cover body 2; in the process of rotating the damping button 5, the upper part of the abutting end of the damping button 5 contacts with the corresponding edge of the cover body 2, and the cover body 2 is slowly opened under the elastic action of the cover opening elastic piece 3 and the buffer action of the upper part of the abutting end of the damping button 5. When the cover body 2 needs to be closed, the cover body 2 is pushed to overcome the elasticity of the clamping elastic piece 8, so that the clamping part of the cover body 2 is clamped into the clamping end of the clamping elastic piece 8.

As shown in fig. 5 and 6, the present invention further provides a thermos bottle using the open-cover damping structure, which includes a liner bottle 9 and the open-cover damping structure, wherein the liner bottle 9 is disposed in the shell 1 of the open-cover damping structure, and the cover 2 is disposed on the mouth of the liner bottle 9. In order to facilitate assembly and replacement of the liner bottle 9, the housing 1 includes an upper shell 17 and a lower shell 18 that are detachably connected, and the upper shell 17 may be fixed on the lower shell 18 by a clamping or screwing manner.

It can be understood that the cover opening damping structure can also be applied to household appliances such as kettles, teapots, soymilk makers and the like.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a damping structure uncaps, including casing (1), the open-top of casing (1) articulates there is lid (2), the articulated department of lid (2) is equipped with uncaps elastic component (3), be used for automatic bullet lid (2), be fixed with handle (4) on casing (1), a serial communication port, the one end that is close to lid (2) on handle (4) rotates and is connected with damping button (5), damping button (5) are connected with button elastic component (6), damping button (5) automatic re-setting when supplying to loosen damping button (5), damping button (5) have the press end and support the end, damping button (5) support the end upper portion and be used for cooperating lid (2) to open the in-process buffering, thereby slow down uncap speed; the shell (1) is rotationally connected with a clamping piece (7), and the clamping piece (7) is connected with a clamping elastic piece (8) so as to provide elasticity for clamping one end of the clamping piece (7) to keep the cover body (2) in a closed state; the other end of the clamping piece (7) is matched with the lower part of the propping end of the damping button (5) so as to drive the clamping piece (7) to rotate when the pressing end of the damping button (5) is pressed to release the clamping, and the cover body (2) is slowly opened under the combined action of the cover opening elastic piece (3) and the upper part of the propping end of the damping button (5); the damping button (5) comprises a button part (51), a connecting part (52), a damping part (53) and a pushing part (54), wherein the button part (51) is fixed at one end of the connecting part (52) to form a button end, the damping part (53) and the pushing part (54) are respectively fixed on the upper surface and the lower surface of the other end of the connecting part (52), the damping part (53) and the pushing part (54) form a supporting end, the cover body (2) is provided with a buffering part (22) so that the buffering part (22) is contacted with the damping part (53) in the opening process of the cover body (2) to realize buffering, and the pushing part (54) is matched with the corresponding end of the clamping piece (7) to drive the clamping piece (7) to rotate to release the clamping.

2. The cover opening damping structure according to claim 1, wherein the hinge part of the shell (1) is provided with a protruding part (11), the protruding part (11) is provided with a shaft hole, the shaft hole is internally provided with a hinge shaft (12), the cover opening elastic piece (3) is provided with a torsion spring, the torsion spring is sleeved on the hinge shaft (12), the hinge part of the cover body (2) is provided with a hinge seat (21), the hinge seat (21) is rotationally connected to the protruding part (11) through the hinge shaft (12), one torsion end of the torsion spring is propped against the protruding part (11), and the other torsion end is propped against the hinge seat (21) so as to provide torsion force for rotating and opening the cover body (2) around the hinge shaft (12).

3. The cover opening damping structure according to claim 1, wherein one end of the connecting portion (52) near the pushing portion (54) is rotatably connected to the handle (4) through a rotating shaft (55).

4. A cover opening damping structure according to claim 3, characterized in that a first opening (41) and a second opening (42) are formed at one end, close to the cover body (2), of the handle (4), a partition wall (43) is formed between the first opening (41) and the second opening (42), a mounting cavity (40) which is communicated with the first opening (41) and the second opening (42) is formed on the handle (4), and the mounting cavity (40) penetrates through the end face of the handle (4) to form an opening for placing a damping button (5); through holes (44) for the rotating shaft (55) to penetrate are formed in the two side walls of the mounting cavity (40) formed in the handle (4), through holes for the rotating shaft (55) to penetrate are formed in the damping button (5), and the damping button (5) is rotatably arranged in the mounting cavity (40) through the rotating shaft (55); the connecting part (52) of the damping button (5) is abutted against the partition wall (43) to limit; the connecting portion (52) and the pushing portion (54) are accommodated in the mounting cavity (40), the damping portion (53) protrudes outwards from the first opening (41), and the button portion (51) protrudes outwards from the second opening (42).

5. The uncapping damping structure according to claim 4, wherein the button elastic member (6) adopts a compression spring, and the compression spring is abutted between the button portion (51) and the handle (4); or the button elastic piece (6) adopts a torsion spring arranged on the rotating shaft (55) or a tension spring connected on the pushing part (54).

6. The cover opening damping structure according to claim 1, wherein one end of the clamping piece (7) is provided with a clamping hook (71), the cover body (2) is provided with a protrusion (23) which is matched and clamped with the clamping hook (71), and the clamping hook (71) hooks the protrusion (23) so as to limit the cover body (2) to automatically spring open.

7. The cover opening damping structure according to claim 6, wherein a storage case (13) for accommodating the clamping member (7) is formed on the housing (1), and an inlet (14) is formed at the bottom of the storage case (13) for accommodating the clamping member (7); the top inner side wall of the storage shell (13) is provided with a clamping hook hole (15), and the bottom outer side wall of the storage shell (13) is provided with an extending hole (19); the clamping piece (7) adopts a stepped clamping structure, two sides of the middle part of the stepped clamping structure are provided with convex shafts (72), two opposite side walls of the storage shell (13) are provided with convex shaft holes (16), and the convex shafts (72) are clamped into the convex shaft holes (16) to realize the rotary connection of the stepped clamping structure in the storage shell (13); one end of a clamping hook (71) of the step-shaped clamping structure extends out of the clamping hook hole (15) and is matched with the protrusion (23) to be clamped, and the other end of the step-shaped clamping structure extends out of the extending hole (19).

8. The uncapping damping structure according to claim 7, wherein the retaining elastic member (8) adopts a compression spring, one end of the compression spring is abutted against the inner wall of the accommodating case (13), and the other end is abutted against a guide post (73) of the stepped retaining structure; alternatively, the clamping elastic piece (8) is replaced by an elastic structure connected to the clamping piece (7).

9. A method of using the cover opening damping structure according to any one of claims 1 to 8, wherein the retaining member (7) is under the action of the retaining elastic member (8) to ensure that one end of the retaining member (7) stably retains the cover body (2) in a closed state; pressing the pressing end of the damping button (5), overcoming the elasticity of the button elastic piece (6), correspondingly rotating the damping button (5) by a preset angle, abutting the corresponding end of the clamping piece (7) at the lower part of the abutting end of the damping button (5), overcoming the elasticity of the clamping elastic piece (8), and driving the clamping piece (7) to correspondingly rotate by a preset angle, so that the clamping piece (7) releases the clamping of the cover body (2); in the rotation process of the damping button (5), the upper part of the abutting end of the damping button (5) contacts with the corresponding edge of the cover body (2), and the cover body (2) is slowly opened under the elastic action of the cover opening elastic piece (3) and the buffer action of the upper part of the abutting end of the damping button (5); when the cover body (2) needs to be closed, the cover body (2) is pushed to overcome the elastic force of the clamping elastic piece (8), so that the clamping part of the cover body (2) is clamped into the clamping end of the clamping elastic piece (8).

10. A thermos flask comprising a liner flask (9), characterized in that the thermos flask comprises the cover opening damping structure according to any one of claims 1-8, the liner flask (9) is arranged in a shell (1) of the cover opening damping structure, and a cover body (2) covers a bottle opening of the liner flask (9).

11. Thermos flask according to claim 10, characterized in that the housing (1) comprises an upper shell (17) and a lower shell (18) which are detachably connected.