CN216166745U

CN216166745U - Heat insulation cup

Info

Publication number: CN216166745U
Application number: CN202122671837.7U
Authority: CN
Inventors: 曲鹏宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-05
Anticipated expiration: 2031-11-03

Abstract

The utility model relates to a vacuum cup, which comprises a cup body, a main cover, a flip cover, a button, a rotating wheel, a limiting piece and a return spring, wherein the flip cover and the main cover are hinged and involutively arranged on the main cover through a pin shaft; the rotating wheel is embedded and is connected to the button in a rotating way; two ends of the reset spring are respectively fixed at one end of the button in the sliding groove and one end of the sliding groove far away from the button; the limiting piece is fixed in the sliding chute; the rotating wheel is provided with a limiting bulge, the limiting part and the limiting bulge can be oppositely arranged in the sliding direction of the button, a preset gap exists between the limiting part and the limiting bulge, and the preset gap is smaller than the distance which the clamping part needs to move away from the clamping part. The vacuum cup provided by the utility model can lock the switch button of the cup cover of the vacuum cup, is convenient for opening and closing the cup cover by a single hand and improves the heat preservation effect.

Description

Heat insulation cup

Technical Field

The utility model relates to a vacuum cup, and belongs to the field of vacuum cups.

Background

The thermos cup in the existing market comprises a cup body and a cup cover, wherein the cup cover is connected with the cup body through threads, the cup cover needs to be unscrewed when water is drunk, the cup cover needs to be screwed down immediately after the water in the cup is kept warm, and the cup cover is opened repeatedly and screwed down to enable heat loss in the cup body to be more and not beneficial to heat preservation.

A plurality of vacuum cups with flip-open covers are arranged on the market at present, the lantern rings are sleeved on the flip-open covers, the cup covers can be quickly opened and closed, heat loss in the vacuum cups is reduced, the flip-open covers are unstable in structure due to the mode of the lantern rings, the lantern rings are easily opened when the cups are toppled, and the cup is inconvenient to operate by one hand and use.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a vacuum cup, which can lock a switch button of a cup cover of the vacuum cup, is convenient for opening and closing the cup cover by a single hand and improves the heat insulation effect.

The technical scheme for solving the technical problems is as follows: a vacuum cup comprises a cup body, a main cover, a flip cover, a button, a rotating wheel, a limiting piece and a return spring, wherein the main cover is provided with a water outlet and is in threaded connection with the cup opening of the cup body, the rear end of the flip cover is hinged with the rear end of the main cover through a pin shaft and can be arranged on the main cover in an involutive manner, a torsion spring is sleeved on the pin shaft, two ends of the torsion spring are respectively fixed on the main cover and the flip cover,

a sliding groove is formed in the side face of the main cover in the radial direction, the button is arranged in the sliding groove in a sliding mode, a clamping portion is arranged at the upper portion, close to the inner side of the flip cover, of the button, a clamping portion is arranged on the inner surface of the front end of the flip cover, and the clamping portion can be clamped with the clamping portion; the rotating wheel is embedded into and rotatably connected with the button; two ends of the reset spring are respectively fixed at one end of the button in the sliding groove and one end of the sliding groove far away from the button; the limiting piece is fixed in the sliding groove; the rotating wheel is provided with a limiting protrusion, the limiting part and the limiting protrusion can be oppositely arranged in the sliding direction of the button, a preset gap exists between the limiting part and the limiting protrusion, and the preset gap is smaller than the distance for the clamping part to be separated from the clamping part to move.

The utility model has the beneficial effects that: the main cover is in threaded connection with a cup opening of the cup body, the flip cover and the rear end of the main cover are in hinged rotary connection through a pin shaft, a sliding groove is radially formed in the main cover, the button is arranged in the sliding groove in a sliding mode, a clamping portion is arranged on the upper portion, close to the inner side of the flip cover, of the button, a clamping portion is arranged on the inner surface of the front end of the flip cover, and the clamping portion can be clamped with the clamping portion to lock the flip cover; two ends of the reset spring are respectively fixed at one end of the button in the sliding groove and one end of the sliding groove far away from the button, so that the clamping part can always be clamped with the clamping part; the rotating wheel is embedded into and rotatably connected with the button, the limiting part is fixedly arranged in the sliding groove, the limiting part and the limiting protrusion can be oppositely arranged in the sliding direction of the button, a preset gap exists between the limiting part and the limiting protrusion, the limiting protrusion can be prevented from being clamped by the limiting part when the rotating wheel rotates, and the limiting protrusion cannot be far away from the limiting part and cannot unlock the button; the preset gap is smaller than the distance which is required to move when the clamping part is separated from the clamping part, and when the button is prevented from being locked, the button clamping part is pressed to separate from the clamping part to open the turnover cover; rotating the rotating wheel, enabling the limiting protrusion to be far away from the limiting part, unlocking the button, pressing the button, enabling the clamping part to be separated from the clamping part, and opening the flip cover; a torsion spring is sleeved on the pin shaft, two ends of the torsion spring are respectively fixed on the main cover and the flip cover, when the clamping portion is separated from the clamping portion, the flip cover automatically turns over and opens under the elastic action of the torsion spring, a switch button of the cup cover of the vacuum cup can be locked, the cup cover can be conveniently opened and closed by a single hand, and the heat insulation effect is improved.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the runner includes connecting axle and rim plate, a through-hole is seted up at the rim plate center, the connecting axle passes the through-hole with the rim plate rotates to be connected, spacing arch is fixed to be set up on the rim plate outer fringe, the connecting axle is fixed to be set up on the button.

The beneficial effect of adopting the further scheme is as follows: the connecting shaft penetrates through the through hole to be rotatably connected with the wheel disc, the connecting shaft is fixedly arranged on the button, and the wheel disc is rotatably arranged on the button through the connecting shaft, so that the structure is simple, and the installation is convenient; the limiting bulge is fixedly arranged on the outer edge of the wheel disc, and the limiting effect is good.

Furthermore, the button is provided with a mounting hole for mounting the rotating wheel, and two ends of the connecting shaft are respectively and fixedly arranged on two side walls in the mounting hole.

The beneficial effect of adopting the further scheme is as follows: the button is provided with a mounting hole, and the wheel disc is assembled in the mounting hole, so that the structure is simple; the wheel disc is embedded into the button to improve the aesthetic degree; the two ends of the connecting shaft are respectively and fixedly arranged on the two side walls in the mounting hole, and the connecting device is simple in structure and convenient to mount.

Further, the limiting part is a U-shaped elastic sheet, the U-shaped elastic sheet is fixedly arranged in the sliding groove, the opening of the U-shaped elastic sheet faces the sliding groove opening, an upper elastic sheet of the U-shaped elastic sheet is parallel to the bottom of the sliding groove, a deformation gap exists between the upper elastic sheet and the bottom of the sliding groove, the upper elastic sheet of the U-shaped elastic sheet and the limiting protrusion can be oppositely arranged in the sliding direction of the button, a preset gap exists between the upper elastic sheet and the limiting protrusion, and the preset gap is smaller than the distance for the clamping part to be separated from the clamping part to move.

The beneficial effect of adopting the further scheme is as follows: the U-shaped elastic sheet has a simple structure; the U-shaped elastic sheet is fixedly arranged in the sliding groove, the opening of the U-shaped elastic sheet faces the sliding groove opening, the U-shaped elastic sheet does not have elasticity in the sliding direction of the button, the upper elastic sheet of the U-shaped elastic sheet is parallel to the bottom of the sliding groove, so that the limiting protrusion can be arranged opposite to the upper elastic sheet of the U-shaped elastic sheet, the button is pressed, and when the U-shaped elastic sheet is abutted to the limiting protrusion, the button is limited to slide along the sliding groove, and the button is locked; the direction from the upper elastic sheet to the lower elastic sheet of the U-shaped elastic sheet is elastic and can deform, the wheel disc is rotated, the limiting bulge is far away from the U-shaped elastic sheet through a preset gap, the button is unlocked and slides along the chute, the upper elastic sheet of the U-shaped elastic sheet and the arc part of the wheel disc are extruded, the upper elastic sheet of the U-shaped elastic sheet deforms, the button can continue to slide, the clamping part is separated from the clamping part, and the flip cover is opened; the preset clearance can prevent the limiting bulge from being clamped by the limiting piece when the wheel disc rotates and the button cannot be unlocked; a deformation gap exists between the upper elastic sheet of the U-shaped elastic sheet and the bottom of the chute, so that the upper elastic sheet of the U-shaped elastic sheet can deform when being extruded by the wheel disc, and the button is unlocked; the preset gap is smaller than the distance that the clamping part needs to move to separate from the clamping part, and when the button is prevented from being locked, the button clamping part is pressed to separate from the clamping part to open the turnover cover.

Furthermore, a shifting block is fixedly arranged on the outer edge of the wheel disc, and the shifting block and the limiting bulge are oppositely arranged about the center of the wheel disc.

The beneficial effect of adopting the further scheme is as follows: the wheel disc is convenient to rotate; the shifting block and the limiting bulge are oppositely arranged about the center of the wheel disc, so that the wheel disc can be rotated at the largest angle, and the limiting bulge is far away from the limiting part.

Further, the main cover is located the spout top is equipped with one the via hole that joint portion passed, joint portion passes the via hole can with block portion joint.

The beneficial effect of adopting the further scheme is as follows: stability when joint portion and block portion joint is improved.

Furthermore, a clamping hook is arranged on the clamping part and can be clamped with the clamping part.

The beneficial effect of adopting the further scheme is as follows: the clamping of the clamping hook and the clamping part is more convenient and stable.

Drawings

FIG. 1 is a schematic view of a vacuum cup according to the present invention;

FIG. 2 is a schematic structural view of a lid of a thermos cup according to the present invention;

FIG. 3 is a schematic view of a main lid of the vacuum cup according to the present invention;

FIG. 4 is a schematic structural view of a runner and a U-shaped elastic sheet when a button in a thermos cup is locked according to the present invention;

FIG. 5 is a schematic structural view of another angle between the rotating wheel and the U-shaped elastic sheet when the button in the thermos cup is locked according to the present invention;

FIG. 6 is a schematic structural view of a runner and a U-shaped elastic sheet when a button in a thermos cup is unlocked according to the present invention;

FIG. 7 is a schematic structural view of the runner and the U-shaped elastic sheet at another angle when the button in the thermos cup is unlocked according to the present invention;

FIG. 8 is a schematic structural view of the relative position between the runner and the U-shaped elastic sheet when the button is locked in the thermos cup according to the present invention;

FIG. 9 is a schematic structural view of the relative position between the rotating wheel and the U-shaped elastic sheet when the button in the thermos cup is unlocked according to the present invention;

FIG. 10 is a schematic structural view of a button in a thermos cup according to the present invention;

FIG. 11 is a schematic structural view of the thermos cup with the flip cover and the button engaged.

In the drawings, the components represented by the respective reference numerals are listed below:

1-cup body, 2-main cover, 3-flip cover, 4-button, 5-runner, 501-wheel, 6-pin shaft, 7-clamping part, 8-clamping part, 801-clamping hook, 9-U-shaped elastic sheet, 10-mounting hole, 11-sliding groove, 12-through hole, 13-limiting bulge, 14-shifting block, 15-through hole and 16-preset gap.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

The utility model aims to provide a vacuum cup, which solves the problems in the prior art, can lock a switch button of a cup cover of the vacuum cup, is convenient for opening and closing the cup cover by a single hand and improves the heat preservation effect.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The utility model provides a vacuum cup, which comprises a cup body 1, a main cover 2, a turnover cover 3, a button 4, a rotating wheel 5, a limiting piece and a return spring in a specific embodiment of the utility model, as shown in figures 1-11, wherein the main cover 2 is provided with a water outlet and is in threaded connection with the cup mouth of the cup body 1, the rear end of the turnover cover 3 is hinged with the rear end of the main cover 2 through a pin shaft 6 and can be oppositely arranged on the main cover 2, the pin shaft 6 is sleeved with a torsion spring, two ends of the torsion spring are respectively fixed on the main cover 2 and the turnover cover 3,

a sliding groove 11 is radially formed in the side surface of the main cover 2, the button 4 is slidably arranged in the sliding groove 11, a clamping part 8 is arranged at the upper part of the button 4 close to the inner side of the flip 3, a clamping part 7 is arranged on the inner surface of the front end of the flip 3, and the clamping part 8 can be clamped with the clamping part 7; the rotating wheel 5 is embedded in and rotationally connected to the button 4; two ends of the return spring are respectively fixed at one end of the button 4 in the sliding groove 11 and one end of the sliding groove 11 far away from the button 4; the limiting piece is fixed in the sliding groove 11; the rotating wheel 5 is provided with a limiting protrusion 13, the limiting member and the limiting protrusion 13 can be arranged oppositely in the sliding direction of the button 4, a predetermined gap 16 exists between the limiting member and the limiting protrusion 13, and the predetermined gap 16 is smaller than the distance that the clamping portion 7 needs to move away from the clamping portion 8.

The utility model provides a vacuum cup, wherein a main cover 2 is in threaded connection with a cup opening of a cup body 1, a flip cover 3 is in hinged and rotary connection with the rear end of the main cover 2 through a pin shaft 6, a sliding groove 11 is radially formed in the main cover 2, a button 4 is arranged in the sliding groove 11 in a sliding manner, a clamping part 8 is arranged at the upper part of the button 4 close to the inner side of the flip cover 3, a clamping part 7 is arranged on the inner surface of the front end of the flip cover 3, and the clamping part 8 can be clamped with the clamping part 7 to lock the flip cover 3; two ends of the reset spring are respectively fixed at one end of the button 4 in the sliding groove 11 and one end of the sliding groove 11 far away from the button 4, so that the clamping part 8 can always be clamped with the clamping part 7; the rotating wheel 5 is embedded into and rotatably connected with the button 4, the limiting piece is fixedly arranged in the sliding groove 11, the limiting piece and the limiting protrusion 13 are oppositely arranged in the sliding direction of the button 4, a preset gap 16 exists between the limiting piece and the limiting protrusion, the preset gap 16 can prevent the limiting protrusion 13 from being clamped by the limiting piece when the rotating wheel 5 rotates, and the limiting protrusion 13 cannot be far away from the limiting piece and cannot unlock the button 4; the preset gap 16 is smaller than the distance of the clamping part 7 which needs to move to separate from the clamping part 8, and when the button 4 is prevented from being locked, the clamping part 8 of the button 4 is pressed to separate from the clamping part 7 to open the turnover cover 3; rotating the rotating wheel 5, enabling the limiting protrusion 13 to be far away from the limiting part, unlocking the button 4, pressing the button 4, enabling the clamping part 8 to be separated from the clamping part 7, and opening the turnover cover 3; a torsion spring is sleeved on the pin shaft 6, two ends of the torsion spring are respectively fixed on the main cover 2 and the turnover cover 3, when the clamping part 8 is separated from the clamping part 7, the turnover cover 3 is automatically turned over and opened under the elastic action of the torsion spring, the vacuum cup cover switch button 4 can be locked, and the vacuum cup cover can be conveniently opened and closed by a single hand and the heat preservation effect is improved.

In a specific embodiment of the present invention, the rotating wheel 5 includes a connecting shaft and a wheel disc 501, a through hole 15 is formed in the center of the wheel disc 501, the connecting shaft passes through the through hole 15 and is rotatably connected with the wheel disc 501, the limiting protrusion 13 is fixedly disposed on the outer edge of the wheel disc 501, and the connecting shaft is fixedly disposed on the button 4.

The connecting shaft penetrates through the through hole 15 to be rotatably connected with the wheel disc 501, the connecting shaft is fixedly arranged on the button 4, and the wheel disc 501 is rotatably arranged on the button 4 through the connecting shaft, so that the structure is simple and the installation is convenient; the limiting bulge 13 is fixedly arranged on the outer edge of the wheel disc 501, and the limiting effect is good.

In a specific embodiment of the present invention, the button 4 is provided with a mounting hole 10 for mounting the rotating wheel 5, and two ends of the connecting shaft are respectively and fixedly disposed on two side walls in the mounting hole 10.

The button 4 is provided with a mounting hole 10, and the wheel disc 501 is assembled in the mounting hole 10, so that the structure is simple; the wheel disc 501 is embedded into the button 4 to improve the aesthetic degree; two ends of the connecting shaft are respectively fixedly arranged on two side walls in the mounting hole 10, and the structure is simple and the mounting is convenient.

In a specific embodiment of the present invention, the limiting member is a U-shaped elastic sheet 9, the U-shaped elastic sheet 9 is fixedly disposed in the sliding groove 11, an opening of the U-shaped elastic sheet is toward an opening of the sliding groove 11, an upper elastic sheet of the U-shaped elastic sheet 9 is parallel to a bottom of the sliding groove 11 and has a deformation gap, an upper elastic sheet of the U-shaped elastic sheet 9 and the limiting protrusion 13 can be arranged in a relative manner in a sliding direction of the button 4, and a predetermined gap 16 exists between the upper elastic sheet and the limiting protrusion, and the predetermined gap 16 is smaller than a moving distance required for the engaging portion 7 to disengage from the engaging portion 8.

The U-shaped elastic sheet 9 has simple structure; the U-shaped elastic sheet 9 is fixedly arranged in the sliding groove 7, the opening of the U-shaped elastic sheet faces the opening of the sliding groove 7, the U-shaped elastic sheet 9 does not have elasticity in the sliding direction of the button 4, the elastic sheet on the U-shaped elastic sheet 9 is parallel to the bottom of the sliding groove 11, so that the limiting protrusion 13 can be arranged opposite to the elastic sheet on the U-shaped elastic sheet 9, when the button 4 is pressed, and when the U-shaped elastic sheet 9 is abutted to the limiting protrusion 13, the button 4 is limited to slide along the sliding groove 11 in the radial direction, and the button 4 is locked; the direction from the upper elastic sheet to the lower elastic sheet of the U-shaped elastic sheet 9 is elastic and can deform, the wheel disc 501 is rotated, the limiting bulge 13 is far away from the U-shaped elastic sheet 9 through the preset gap 16, the button 4 is unlocked, the button 4 slides along the chute 11, the upper elastic sheet of the U-shaped elastic sheet 9 and the arc part of the wheel disc 501 are extruded, the upper elastic sheet of the U-shaped elastic sheet 9 deforms, the button 4 can continuously slide, the clamping part 8 is separated from the clamping part 7, and the flip cover 3 is opened; the preset gap 16 can prevent the limiting piece from clamping the limiting bulge 13 when the wheel disc 501 rotates, and the button 4 cannot be unlocked; a deformation gap exists between the upper elastic sheet of the U-shaped elastic sheet 9 and the bottom of the chute 11, so that the upper elastic sheet of the U-shaped elastic sheet 9 can deform when being extruded by the wheel disc 501, and the button 4 is unlocked; the predetermined gap 16 is smaller than the distance that the clamping part 7 needs to move to separate from the clamping part 8, so that when the button 4 is locked, the clamping part 8 of the button 4 is pressed to separate from the clamping part 7 to open the turnover cover 3.

In a specific embodiment of the present invention, a shifting block 14 is fixedly disposed on the outer edge of the wheel disc 501, so as to facilitate rotation of the wheel disc 501; the shifting block 14 and the limiting protrusion 13 are arranged opposite to each other about the center of the wheel disc 501, so that the wheel disc 501 can be rotated at the maximum angle, and the limiting protrusion 13 is far away from the limiting part.

In a specific embodiment of the present invention, a through hole 12 is formed in the main cover 2 at the top of the sliding groove 11, through which the clamping portion 7 passes, and the clamping portion 7 passes through the through hole 12 and can be clamped with the clamping portion 8, so as to improve stability when the clamping portion 7 is clamped with the clamping portion 8.

In an embodiment of the present invention, the hook 801 can be connected to the connecting portion 7 in a clamping manner, so that the hook 801 is connected to the connecting portion 7 more conveniently and stably.

The vacuum cup provided by the embodiment of the utility model has the following use process:

the button 4 is located at an initial position, the flip cover 3 is abutted to the main cover 2, the clamping part 7 penetrates through the through hole 12 to be clamped with the clamping hook 801, and the flip cover 3 is locked on the main cover 2;

the poking block 14 is poked, the wheel disc 501 rotates by taking the connecting shaft as a shaft, the limiting protrusion 13 is far away from the upper elastic sheet of the U-shaped elastic sheet 9 through the preset gap 16, the button 4 is unlocked, the circular arc part of the wheel disc 501 and the upper elastic sheet of the U-shaped elastic sheet 9 are oppositely arranged in the sliding direction of the button 4, the button 4 is pressed, the circular arc part of the wheel disc 501 extrudes the upper elastic sheet of the U-shaped elastic sheet 9, the U-shaped elastic sheet 9 deforms, the button 4 can continuously slide along the sliding groove 11 until the clamping hook 801 is separated from the clamping part 7, the turnover cover 3 is automatically turned over under the elastic force action of the torsion spring, the vacuum cup is convenient to be opened by one hand, the button 4 always has the tendency of returning to the initial position under the action of the reset spring, the button 4 is released, and the button 4 returns to the initial position under the action of the reset spring;

after drinking water, detain flip 3 down, make joint portion 7 pass through via hole 12 and trip 801 joint, stir shifting block 14, rim plate 501 uses the connecting axle to rotate as the opposite direction of axial, and spacing arch 13 is through predetermined clearance 16 and U type shell fragment 9 upper elastic sheet mutual disposition, and restriction button 4 slides along spout 11, and locking button 4, trip 801 can't break away from joint portion 7, and flip 3 can't be opened, makes things convenient for the one hand to close the thermos cup.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A vacuum cup is characterized by comprising a cup body (1), a main cover (2), a flip cover (3), a button (4), a rotating wheel (5), a limiting piece and a return spring, wherein the main cover (2) is provided with a water outlet and is in threaded connection with the cup opening of the cup body (1), the rear end of the flip cover (3) is hinged with the rear end of the main cover (2) through a pin shaft (6) and can be oppositely arranged on the main cover (2), the pin shaft (6) is sleeved with a torsion spring, two ends of the torsion spring are respectively fixed on the main cover (2) and the flip cover (3),

a sliding groove (11) is formed in the side face of the main cover (2) in the radial direction, the button (4) is arranged in the sliding groove (11) in a sliding mode, a clamping portion (8) is arranged on the upper portion, close to the inner side of the flip cover (3), of the button (4), a clamping portion (7) is arranged on the inner surface of the front end of the flip cover (3), and the clamping portion (8) can be clamped with the clamping portion (7); the rotating wheel (5) is embedded and rotationally connected to the button (4); two ends of the reset spring are respectively fixed at one end of the button (4) positioned in the sliding groove (11) and one end of the sliding groove (11) far away from the button (4); the limiting piece is fixed in the sliding groove (11); the rotating wheel (5) is provided with a limiting protrusion (13), the limiting part and the limiting protrusion (13) can be oppositely arranged in the sliding direction of the button (4), a preset gap exists between the limiting part and the limiting protrusion, and the preset gap is smaller than the distance for the clamping part (7) to separate from the clamping part (8) to move.

2. A vacuum cup as claimed in claim 1, characterized in that the runner (5) comprises a connecting shaft and a wheel disc (501), a through hole (15) is formed in the center of the wheel disc (501), the connecting shaft penetrates through the through hole (15) to be rotatably connected with the wheel disc (501), the limiting bulge (13) is fixedly arranged on the outer edge of the wheel disc (501), and the connecting shaft is fixedly arranged on the button (4).

3. A thermos cup according to claim 2, characterized in that the button (4) is provided with a mounting hole (10) for mounting the runner (5), and two ends of the connecting shaft are respectively and fixedly arranged on two inner side walls of the mounting hole (10).

4. A vacuum cup according to claim 2, characterized in that the limiting member is a U-shaped spring (9), the U-shaped spring (9) is fixedly arranged in the chute (11) and has an opening facing the opening of the chute (11), an upper spring of the U-shaped spring (9) is parallel to the bottom of the chute (11) and has a deformation gap therebetween, an upper spring of the U-shaped spring (9) and the limiting protrusion (13) can be oppositely arranged in the sliding direction of the button (4) and have the predetermined gap therebetween, and the predetermined gap is smaller than the distance for the clamping portion (7) to move away from the clamping portion (8).

5. A thermos cup according to claim 2, characterized in that a dial (14) is fixedly arranged on the outer edge of the wheel disc (501), and the dial (14) and the limit projection (13) are oppositely arranged about the center of the wheel disc (501).

6. A thermos cup according to any of claims 1 to 5, characterized in that a through hole (12) is provided in the main lid (2) at the top of the chute (11), through which the engaging portion (7) passes, and the engaging portion (7) can engage with the engaging portion (8) through the through hole (12).

7. A thermos cup according to claim 6, characterized in that the engaging portion (8) has a hook (801), and the hook (801) is engageable with the engaging portion (7).