阅读说明：本技术 一种保温杯 (Heat insulation cup ) 是由 谭静桃 于 2019-11-30 设计创作，主要内容包括：本发明属于杯子技术领域,尤其涉及一种保温杯,包括保温杯体、保温杯盖、推动件、密封圈和驱动件；驱动件安装于所述保温杯盖上端,推动件安装于保温杯盖下端；推动件的上端设有至少一推动杆,推动杆活动穿过保温杯盖与驱动件连接；密封圈设于保温杯盖与推动件之间；所述保温杯盖盖合所述杯口时,所述推动件位于所述杯口内；所述杯口内壁和所述推动件之间形成间隙,所述密封圈位于该间隙内；扳动驱动件带动推动件向上移动,间隙缩小并被密封圈充满,从而使得保温杯盖和与杯口密封连接；扳动驱动件带动推动件向下移动,密封圈弹性复位,打破与保温杯体的杯口内壁的密封连接；通过上述方式开启或关闭保温杯盖非常方便,且保温杯的密封性好。(The invention belongs to the technical field of cups, and particularly relates to a vacuum cup which comprises a vacuum cup body, a vacuum cup cover, a pushing piece, a sealing ring and a driving piece, wherein the vacuum cup cover is arranged on the vacuum cup body; the driving piece is arranged at the upper end of the heat-preservation cup cover, and the pushing piece is arranged at the lower end of the heat-preservation cup cover; the upper end of the pushing piece is provided with at least one pushing rod which movably penetrates through the heat-preservation cup cover to be connected with the driving piece; the sealing ring is arranged between the heat-preserving cup cover and the pushing piece; when the heat-preserving cup cover covers the cup opening, the pushing piece is positioned in the cup opening; a gap is formed between the inner wall of the cup mouth and the pushing piece, and the sealing ring is positioned in the gap; pulling the driving piece to drive the pushing piece to move upwards, reducing the gap and filling the gap with the sealing ring, so that the heat-insulating cup cover is in sealing connection with the cup opening; pulling the driving piece to drive the pushing piece to move downwards, and elastically resetting the sealing ring to break the sealing connection with the inner wall of the cup opening of the heat preservation cup body; the heat-preservation cup cover can be opened or closed very conveniently in the above mode, and the heat-preservation cup has good sealing performance.)

1. A vacuum cup comprises a vacuum cup body and a vacuum cup cover covering the cup opening of the vacuum cup body; it is characterized by also comprising:

the driving piece is arranged at the upper end of the heat-preservation cup cover;

the pushing piece is arranged at the lower end of the heat-preservation cup cover; the upper end of the pushing piece is provided with at least one pushing rod, and the pushing rod movably penetrates through the heat-preservation cup cover to be connected with the driving piece; and

the sealing ring is made of elastic materials and is arranged between the heat-preservation cup cover and the pushing piece;

when the heat-preserving cup cover covers the cup opening, the pushing piece is positioned in the cup opening; a gap is formed between the inner wall of the cup mouth and the pushing piece, and the sealing ring is positioned in the gap; pulling the driving piece to drive the pushing piece to move upwards, and reducing the gap and filling the gap with the sealing ring, so that the heat-preservation cup cover is in sealing connection with the cup opening; pulling the driving piece to drive the pushing piece to move downwards, and the sealing ring is elastically reset to break the sealing connection with the inner wall of the cup opening of the heat-preservation cup body.

2. A thermos cup according to claim 1, wherein: the seal ring comprises a first annular connecting portion; the first annular connecting part is connected with the inner wall of the top of the heat-insulating cup cover, and a first annular sealing part extends downwards from the first annular connecting part; the outer diameter of the pushing piece is gradually reduced from bottom to top to form a conical pushing part, and the conical pushing part is abutted against the inner side of the first annular sealing part; the first annular sealing part is outwards bent under the pushing of the conical pushing part to fill the gap and is in sealing connection with the inner wall of the cup opening of the heat-preservation cup body.

3. A thermos cup according to claim 2, characterized in that: the outer wall ring of first annular sealing portion is equipped with first seal groove, the inner wall ring of rim of a cup is equipped with the arc convex part, first seal groove be in under the ejection of toper promotion portion with the sealed butt of arc convex part.

4. A thermos cup according to claim 1, wherein: the seal ring comprises a second annular connecting part; the second annular connecting part is connected with the inner wall of the top of the heat-insulating cup cover, and a second annular sealing part extends downwards from the second annular connecting part; the outer diameter of the top of the pushing piece is reduced in a stepped manner to form a connecting part, the second annular sealing part is sleeved on the connecting part in a matching manner, and the lower end of the second annular sealing part is abutted to the pushing piece; the inner wall of the cup opening of the heat-preservation cup body is annularly provided with a sealing groove, and the second annular sealing part protrudes outwards under the pushing of the pushing piece and is contained in the sealing groove.

5. A thermos cup according to claim 4, characterized in that: the lower end of the second annular sealing part is annularly and convexly provided with a second annular connecting bulge, the step of the pushing part is dug to be provided with a second annular connecting groove, and the second annular connecting bulge is inserted into the second annular connecting groove.

6. A thermos cup according to claim 1, wherein: the top of sealing washer is dug and is equipped with a first annular spread groove, the protruding first annular of being equipped with of top inner wall of heat preservation bowl cover is connected the arch, first annular is connected the arch peg graft in first annular spread groove.

7. A thermos cup according to claim 6, characterized in that: an annular sealing table extends outwards from the top of the sealing ring, and the upper end face of the annular sealing table is abutted against the inner wall of the top of the vacuum cup cover; when the heat-preservation cup cover covers the rim of the heat-preservation cup body, the lower end face of the annular sealing platform is in sealing butt joint with the end part of the rim of the heat-preservation cup body.

8. A thermos cup according to claim 1, wherein: at least one elastic piece is arranged between the inner wall of the top of the vacuum cup cover and the upper end of the pushing piece.

9. A thermos cup according to any of claims 1-8, characterized in that: the drive member includes a drive plate; the end part of the driving plate is provided with a pair of mounting seats, the two mounting seats are respectively provided with mounting grooves, and a connecting shaft is eccentrically arranged in each mounting groove, so that a far shaft end and a near shaft end are respectively formed at two adjacent ends of the mounting seats; the upper end of the pushing piece is symmetrically provided with a pair of pushing rods, the upper parts of the two pushing rods are both provided with connecting holes, and the connecting holes are rotatably connected to the connecting shaft; the driving piece is rotated to drive the far shaft end of the mounting seat to abut against the upper end face of the heat-preservation cup cover, so that the driving piece is driven to move upwards and push the sealing ring to be in sealing connection with the inner wall of the cup opening of the heat-preservation cup body; and reversely rotating the driving piece to drive the shaft end close to the mounting seat to abut against the upper end surface of the heat-insulating cup cover, so as to drive the pushing piece to move downwards, and elastically resetting the sealing ring and removing the sealing connection with the inner wall of the cup opening of the heat-insulating cup body.

10. A thermos cup according to claim 9, wherein: the distal shaft end and the proximal shaft end are both straight ends; the far shaft end is arranged in parallel with the driving plate, and the near shaft end is positioned at the end part of the driving plate and is arranged perpendicular to the driving plate.

11. A thermos cup according to claim 9, wherein: the top of the heat-preservation cup cover is concavely provided with a containing groove, and a first stepped groove and a second stepped groove which are reduced in a stepped manner are arranged in the containing groove; the bottom of the second step groove is provided with a pair of through holes in a penetrating mode, and the upper portions of the two push rods respectively movably penetrate through the two through holes to be connected with the connecting shaft in a rotating mode.

12. A thermos cup according to claim 9, wherein: the driving plate is semicircular; a circular or oval through hole penetrates through the driving plate.

13. A thermos cup according to any of claims 1-8, characterized in that: the middle part of the pushing piece is provided with a one-way exhaust valve.

14. A thermos cup according to any of claims 1-8, characterized in that: the vacuum cup also comprises an outer cover; the outer cover covers the upper end of the heat-preservation cup body, and the heat-preservation cup cover is located in the outer cover.

Technical Field

The invention belongs to the technical field of cups, and particularly relates to a vacuum cup.

Background

The cup is a necessary product for daily drinking. At present, most of vacuum cups comprise a cup body and a cup cover covering the cup opening of the cup body; a sealing ring is arranged in the cup cover, and the cup cover is in threaded connection with the cup rim of the cup body, so that the sealing ring is tightly pressed between the cup rim of the cup body and the cup cover, and the inside of the cup body is kept warm. However, the cup cover and the cup rim of the cup body are in threaded connection, and a user can open or close the cup cover by rotating the cup cover for multiple circles, which brings great inconvenience to opening or closing the cup cover. And some cup covers and cup mouths of the cup bodies are buckled and clamped, so that the cup covers are convenient to open, but the sealing performance is poor, and the heat preservation effect is poor. In addition, when the air pressure in the cup body is larger than or smaller than the external air pressure, the threads of the cup opening of the cup body and the threads of the cup cover can be pressed tightly, so that the cup cover can be opened only by rotating vigorously, and the cup cover is inconvenient to open.

Disclosure of Invention

The invention aims to provide a vacuum cup, and aims to solve the technical problem that a cup cover and a cup opening of a cup body in the prior art are in threaded connection, and a user can open or close the cup cover by rotating the cup cover for multiple circles, so that great inconvenience is brought to opening or closing the cup cover.

In order to achieve the purpose, the vacuum cup provided by the embodiment of the invention comprises a vacuum cup body and a vacuum cup cover covering the cup opening of the vacuum cup body; further comprising:

the driving piece is arranged at the upper end of the heat-preservation cup cover;

the pushing piece is arranged at the lower end of the heat-preservation cup cover; the upper end of the pushing piece is provided with at least one pushing rod, and the pushing rod movably penetrates through the heat-preservation cup cover to be connected with the driving piece; and

the sealing ring is made of elastic materials and is arranged between the heat-preservation cup cover and the pushing piece;

when the heat-preserving cup cover covers the cup opening, the pushing piece is positioned in the cup opening; a gap is formed between the inner wall of the cup mouth and the pushing piece, and the sealing ring is positioned in the gap; pulling the driving piece to drive the pushing piece to move upwards, and reducing the gap and filling the gap with the sealing ring, so that the heat-preservation cup cover is in sealing connection with the cup opening; pulling the driving piece to drive the pushing piece to move downwards, and the sealing ring is elastically reset to break the sealing connection with the inner wall of the cup opening of the heat-preservation cup body.

Optionally, the seal ring comprises a first annular connection; the first annular connecting part is connected with the inner wall of the top of the heat-insulating cup cover, and a first annular sealing part extends downwards from the first annular connecting part; the outer diameter of the pushing piece is gradually reduced from bottom to top to form a conical pushing part, and the conical pushing part is abutted against the inner side of the first annular sealing part; the first annular sealing part is outwards bent under the pushing of the conical pushing part to fill the gap and is in sealing connection with the inner wall of the cup opening of the heat-preservation cup body.

Optionally, the outer wall of the first annular sealing portion is annularly provided with a first sealing groove, the inner wall of the cup opening is annularly provided with an arc-shaped convex portion, and the first sealing groove is in sealing and abutting contact with the arc-shaped convex portion under the pushing of the conical pushing portion.

Optionally, the seal ring comprises a second annular connection; the second annular connecting part is connected with the inner wall of the top of the heat-insulating cup cover, and a second annular sealing part extends downwards from the second annular connecting part; the outer diameter of the top of the pushing piece is reduced in a stepped manner to form a connecting part, the second annular sealing part is sleeved on the connecting part in a matching manner, and the lower end of the second annular sealing part is abutted to the pushing piece; the inner wall of the cup opening of the heat-preservation cup body is annularly provided with a sealing groove, and the second annular sealing part protrudes outwards under the pushing of the pushing piece and is contained in the sealing groove.

Optionally, a second annular connecting protrusion is convexly arranged at a lower end of the second annular sealing portion, a second annular connecting groove is dug in the step of the pushing member, and the second annular connecting protrusion is inserted into the second annular connecting groove.

Optionally, a first annular connecting groove is dug in the top of the sealing ring, a first annular connecting bulge is convexly arranged on the inner wall of the top of the heat-insulating cup cover, and the first annular connecting bulge is inserted into the first annular connecting groove.

Optionally, an annular sealing table extends outwards from the top of the sealing ring, and the upper end face of the annular sealing table is abutted against the inner wall of the top of the vacuum cup cover; when the heat-preservation cup cover covers the rim of the heat-preservation cup body, the lower end face of the annular sealing platform is in sealing butt joint with the end part of the rim of the heat-preservation cup body.

Optionally, at least one elastic member is arranged between the inner wall of the top of the vacuum cup cover and the upper end of the pushing member.

Optionally, the drive comprises a drive plate; the end part of the driving plate is provided with a pair of mounting seats, the two mounting seats are respectively provided with mounting grooves, and a connecting shaft is eccentrically arranged in each mounting groove, so that a far shaft end and a near shaft end are respectively formed at two adjacent ends of the mounting seats; the upper end of the pushing piece is symmetrically provided with a pair of pushing rods, the upper parts of the two pushing rods are both provided with connecting holes, and the connecting holes are rotatably connected to the connecting shaft; the driving piece is rotated to drive the far shaft end of the mounting seat to abut against the upper end face of the heat-preservation cup cover, so that the driving piece is driven to move upwards and push the sealing ring to be in sealing connection with the inner wall of the cup opening of the heat-preservation cup body; and reversely rotating the driving piece to drive the shaft end close to the mounting seat to abut against the upper end surface of the heat-insulating cup cover, so as to drive the pushing piece to move downwards, and elastically resetting the sealing ring and removing the sealing connection with the inner wall of the cup opening of the heat-insulating cup body.

Optionally, the distal shaft end and the proximal shaft end are both straight ends; the far shaft end is arranged in parallel with the driving plate, and the near shaft end is positioned at the end part of the driving plate and is arranged perpendicular to the driving plate.

Optionally, a containing groove is formed in the top of the heat-preservation cup cover in a concave mode, and a first stepped groove and a second stepped groove which are reduced in a stepped mode are formed in the containing groove; the bottom of the second step groove is provided with a pair of through holes in a penetrating mode, and the upper portions of the two push rods respectively movably penetrate through the two through holes to be connected with the connecting shaft in a rotating mode.

Optionally, the drive plate is semi-circular; a circular or oval through hole penetrates through the driving plate.

Optionally, a one-way exhaust valve is arranged in the middle of the pushing piece.

Optionally, the vacuum cup further comprises an outer cover; the outer cover covers the upper end of the heat-preservation cup body, and the heat-preservation cup cover is located in the outer cover.

One or more technical schemes in the thermos cup provided by the embodiment of the invention have at least one of the following technical effects: the heat-preservation cup cover covers the mouth of the heat-preservation cup body, and the driving piece drives the pushing piece to move upwards, so that the gap between the mouth of the cup and the heat-preservation cup cover and the pushing piece is reduced. The sealing ring is outwards bent under the pushing of the pushing piece, and the gap is fully filled, so that the cup mouth is in sealing connection with the heat-preservation cup cover, the inside of the heat-preservation cup body is sealed, and heat preservation is realized. Similarly, the driving piece drives the pushing piece to move downwards, the gap between the cup opening and the pushing piece is increased, the sealing ring is elastically reset, and the sealing connection between the cup opening and the heat-preservation cup cover is released. Therefore, the driving plate can be rotated downwards to lock the heat-preservation cup cover, the driving plate can be rotated upwards to open the heat-preservation cup cover, the heat-preservation cup cover is very convenient to open or close, and the defects that the cup cover and the cup opening of the cup body are in threaded connection in the prior art are overcome.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a sectional view of a vacuum cup according to an embodiment of the present invention.

Fig. 2 is an exploded view of a vacuum cup according to an embodiment of the present invention.

Fig. 3 is a diagram illustrating a locking state of the lid of the thermos cup according to an embodiment of the present invention.

Fig. 4 is a diagram illustrating an opened state of the lid of the thermos cup according to an embodiment of the present invention.

Fig. 5 is a sectional view of a vacuum cup according to a second embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the heat-insulating cup body 100, the cup mouth 101, the arc-shaped convex part 110, the elastic part 120, the heat-insulating cup cover 200, the outer wall ring 201, the accommodating groove 202, the first annular connecting bulge 210, the through hole 220, the first stepped groove 230, the second stepped groove 240, the vertical groove 250, the pushing part 300, the pushing rod 310, the connecting hole 311, the conical pushing part 320, the connecting part 330, the step 340, the second annular connecting groove 350, the connecting hole 360, the air hole 370, the clearance groove 380, the first installation 381, the sealing ring 400, the first annular connecting groove 410, the first annular connecting part 420, the first annular sealing part 430, the first arc-shaped convex part 440, the second annular connecting part 450, the second annular sealing part 460, the second annular connecting bulge 470, the annular sealing platform 480, the driving part 500, the driving plate 510, the circular through hole 511, the installation seat 520, the installation groove 521, the connecting shaft 522, the far shaft end 523, the near.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the invention, referring to fig. 1 and 2, a thermal cup is provided, comprising an insulated cup body 100, an insulated cup lid 200, a pusher 300, a sealing ring 400, and a driving member 500.

Referring to fig. 1 and 2, the insulated cup cover 200 is adapted to cover the rim 101 of the insulated cup 100. Specifically, the shell of the heat-insulating cup body 100 has a double-layer shell structure, a gap is formed between the two double-layer shells, and the two double-layer shells are beneficial to heat insulation of the interior of the heat-insulating cup body 100. Referring to fig. 2, the heat-insulating cup cover 200 is a groove formed by an outer wall ring 201 and a top wall, and a containing groove 202 is formed in the middle of the top wall in a concave manner. When the heat-preservation cup cover 200 covers the heat-preservation cup body 100, the cup opening 101 is positioned between the outer wall ring 201 and the containing groove 202. A plurality of vertical grooves 250 are uniformly distributed on the outer wall ring 201, and the vertical grooves 250 are convenient for a user to hold the heat-preservation cup cover 200.

Referring to fig. 1, the driving member 500 is installed in the accommodating groove 202, and the pushing member 300 is installed outside the accommodating groove 202. The pushing member 300 is provided with at least one pushing rod 310, and the pushing rod 310 movably passes through the accommodating groove 202 to be connected with the driving member 500. The sealing ring 400 is arranged between the heat-preserving cup cover 200 and the pushing piece 300. When the heat-preservation cup cover 200 covers the heat-preservation cup body 100, the cup opening 101 is inserted between the accommodating groove 202 and the outer wall ring 201, and the pushing piece 300 is positioned in the cup opening 101. A gap is formed between the cup mouth 101, the heat-preservation cup cover 200 and the pushing piece 300, and the seal 400 is positioned in the gap.

Referring to fig. 1, a first annular connecting groove 410 is dug at the top of the sealing ring 400, a first annular connecting protrusion 210 is convexly arranged on the inner wall of the top of the heat-insulating cup cover 200, and the first annular connecting protrusion 210 is inserted into the first annular connecting groove 410 and is in interference fit with the first annular connecting groove 410, so that the sealing ring 400 is stably connected to the top of the heat-insulating cup cover 200.

Referring to fig. 1 and 2, the seal ring 400 includes a first annular connection portion 420. The first annular connecting portion 420 is provided at the top thereof with the first annular connecting groove 410. The first annular connecting portion 420 extends downward to form a first annular sealing portion 430. The outer diameter of the pushing member 300 is tapered from bottom to top to form a tapered pushing portion 320, and the tapered pushing portion 320 abuts against the inner side of the first annular sealing portion 430. The driving member 500 drives the conical pushing portion 320 of the pushing member 300 to move upward, so as to reduce the gap between the cup opening 101, the vacuum cup cover 200 and the pushing member 300. The first annular sealing part 430 is bent outwards under the pushing of the conical pushing part 320, and the gap is fully filled, so that the cup mouth 101 and the heat-preservation cup cover 200 are in sealing connection, the inside of the heat-preservation cup body 100 is sealed, and heat preservation is realized. Similarly, the driving member 500 drives the conical pushing portion 320 of the pushing member 300 to move downwards, the gap between the cup opening 101, the heat-preserving cup cover 200 and the pushing member 300 is increased, and the first annular sealing portion 430 elastically resets to release the sealing connection between the cup opening 101 and the heat-preserving cup cover 200.

Preferably, the outer wall of the first annular sealing portion 430 is annularly provided with a first sealing groove 440, the inner wall of the cup mouth 101 of the heat-insulating cup body 100 is annularly provided with an arc-shaped convex portion 110, and the first sealing groove 440 is in sealing abutment with the arc-shaped convex portion 110 under the pushing of the conical pushing portion 320, so that the first annular sealing portion 430 and the arc-shaped convex portion 110 can play a role in sealing connection and clamping, and the sealing effect is better.

Referring to fig. 1 and 2, an annular sealing table 480 extends outwards from the top of the first annular connecting portion 420 of the sealing ring 400, and an upper end surface of the annular sealing table 480 abuts against an inner wall of the top of the heat-insulating cup cover 200. When the heat-preservation cup cover 200 covers the cup opening 101 of the heat-preservation cup body 100, the lower end face of the annular sealing platform 480 is in sealing butt joint with the end part of the cup opening 101 of the heat-preservation cup body 100, so that the sealing effect of the sealing ring 400 and the heat-preservation cup body 100 is better.

Referring to fig. 2-4, the drive 500 includes a drive plate 510. The end of the driving plate 510 is provided with a pair of mounting seats 520, two mounting seats 520 are provided with mounting grooves 521, two sides of each mounting groove 521 are provided with a pair of mounting holes, and the two mounting holes are eccentrically arranged in the mounting grooves 521. A connecting shaft 522 is inserted into the two mounting holes, so that two adjacent ends of the mounting seat 510 form a distal shaft end 523 and a proximal shaft end 524 respectively. The connection shaft 522 is disposed in parallel with the driving plate 510. Preferably, both the distal axial end 523 and the proximal axial end 524 are straight ends. The distal axial end 523 is disposed parallel to the drive plate 510 and the proximal axial end 524 is disposed at an end of the drive plate 510 and perpendicular to the drive plate 510.

Referring to fig. 2, a pair of push rods 310 are symmetrically arranged at the upper end of the push member 300, and the upper parts of both the push rods 310 are provided with connecting holes 311. The top of the receiving groove 202 is provided with a pair of through holes 220, the upper parts of the two push rods 310 respectively and movably pass through the two through holes 220, and the two connecting shafts 522 are respectively and rotatably connected to the two connecting holes 311.

Referring to fig. 1 and 3, when the heat-insulating cup cover 200 needs to be locked, the driving plate 510 is rotated downward to drive the distal shaft end 523 of the mounting seat 520 to abut against the upper end surface of the heat-insulating cup cover 200, so that the two pushing rods 310 move upward, thereby driving the pushing member 310 to move upward and push the sealing ring 400 to seal the gap, thereby hermetically connecting the heat-insulating cup body 100 and the heat-insulating cup cover 200. Referring to fig. 1 and 4, when the heat-insulating cup cover 200 needs to be opened, the driving plate 510 is rotated upward to drive the near-axis end 524 of the mounting seat 520 to abut against the upper end surface of the heat-insulating cup cover 200, so that the two pushing rods 310 move downward to drive the pushing member 300 to move downward, the sealing connection between the heat-insulating cup body 100 and the heat-insulating cup cover 200 is released, and at this time, the heat-insulating cup cover 200 can be removed.

Therefore, this application thermos cup, the downwardly rotating drive plate 510 can lock heat preservation bowl cover 200 upwards rotates drive plate 510 can open heat preservation bowl cover 200 opens or closes heat preservation bowl cover 200 is very convenient, solves among the prior art bowl cover and cup rim of a cup and adopts some drawbacks of threaded connection's mode.

Referring to fig. 3, a first stepped groove 230 and a second stepped groove 240 which are reduced in a stepped manner are formed in the receiving groove 202. Preferably, the first step groove 230 and the second step groove 240 have a cylindrical shape. A pair of the through holes 220 is formed through the bottom of the second stepped groove 240. When the drive plate 510 is rotated downwards and the heat-preserving cup cover 200 is locked, the drive plate 510 is horizontally arranged and is accommodated in the first step groove 230, so that the heat-preserving cup is more attractive.

Referring to fig. 1 and 5, the pushing member 300 is mounted on the receiving groove 202, and a clearance groove 380 for clearance of the receiving groove 202 is provided at an upper end of the pushing member 300. (drawing deletion reference numeral 260)

Referring to fig. 3 and 4, the driving plate 510 has a semicircular shape, and a circular or elliptical through hole 511 is formed through the driving plate 510. The circular or oval through hole 511 is formed in the driving plate 510, so that a user can conveniently rotate the driving plate 510, and meanwhile, the user can conveniently hold the heat-preservation cup cover 200 by buckling the driving plate 510 with fingers.

Referring to fig. 1 and 2, at least one elastic member 120 is disposed between the receiving groove 202 and the upper end of the pushing member 300. Preferably, the elastic members 120 are provided in a pair. The elastic member 120 is a circular silica gel column having excellent elasticity. The pushing member 300 is provided with a pair of first mounting grooves 381 dug at the bottom of the clearance groove 380, the receiving groove 202 is provided with two second mounting grooves (not shown) corresponding to the two first mounting grooves 381 one by one on the bottom surface of the receiving groove, and two ends of the elastic member 120 are respectively inserted into the first mounting grooves 381 and the second mounting grooves. The elastic piece 120 plays a role of a spring, when the heat-preservation cup cover 200 is locked, the elastic piece is in a compressed state, when the heat-preservation cup cover 200 is opened, the elastic piece 120 elastically resets to push the pushing piece 300 to move downwards, so that the pushing piece 300 smoothly moves downwards, and the situation that the heat-preservation cup cover 200 cannot be opened due to the fact that the pushing piece 300 is blocked is prevented.

Referring to fig. 1 and 5, the bottom of each push rod 310 is sleeved with a sealing gasket 390, and correspondingly, the heat-insulating cup covers 200 are each provided with a sealing gasket mounting groove 270 dug in the through holes 220. When the driving plate 510 is rotated downwards and the heat preservation cup cover 200 is locked, the sealing gasket 390 is abutted to the sealing gasket mounting groove 270, so that the through hole 220 is sealed, and the heat preservation effect of the heat preservation cup is better.

Referring to fig. 1 and 2, the middle of the pushing member 300 is provided with a one-way exhaust valve 600. The one-way exhaust valve 600 includes an elastic valve portion 610. The upper end of the elastic air valve part 610 is provided with a connecting column 620 with a limiting part 621 at the top. The middle part of the pushing member 300 is provided with a connecting hole 360 in a penetrating manner, and the pushing member 300 is further provided with a pair of air holes 370 at two sides of the connecting hole 360. The connecting column 620 is inserted into the connecting hole 360 and connected to the pushing member 300 through the limiting portion 621. The elastic air valve 610 abuts against the lower end surface of the pusher 300 and covers both the air holes 370. When the air pressure in the heat-insulating cup body 100 is smaller than the external air pressure, the drive plate 510 is rotated upwards to open the heat-insulating cup cover 200, the external air can enter from the through hole 220, the elastic air valve 610 is pushed through the air hole 370, a gap is formed between the elastic air valve 610 and the pushing piece 300, and the external air enters the heat-insulating cup body 100 from the gap, so that the air pressure in the heat-insulating cup body 100 and the external air pressure is balanced, and the heat-insulating cup cover 200 is prevented from being opened. When the air pressure in the heat-insulating cup body 100 is greater than the external air pressure, the driving plate 510 is rotated downwards to lock the heat-insulating cup cover 200, and as the pushing member 300 moves upwards, the internal space of the heat-insulating cup body 100 is instantly enlarged, so that the air pressure in the heat-insulating cup body 100 is reduced, and the heat-insulating cup cover 200 is prevented from being ejected out in the locking process.

Referring to fig. 3, the thermos cup further includes an outer lid 700. The outer cover 700 covers the upper end of the heat-preservation cup body 100, and the heat-preservation cup cover 200 is positioned in the outer cover 700. The outer cover 700 can be used as a bowl, and the practicability is high.

Preferably, the sealing ring 400 is a silicone ring or a rubber ring.

Referring to fig. 5, in another embodiment of the present invention, the seal ring 400 includes a second annular connection 450. The second annular connecting portion 450 is connected to the inner wall of the top of the heat-insulating cup cover 200, and specifically, the first annular connecting groove 410 is disposed at the top of the second annular connecting portion 450. The second annular connection 450 extends downwardly beyond a second annular seal 460. The outer diameter of the top of the pushing member 300 is reduced in a stepwise manner to form a connecting portion 330, the second annular sealing portion 450 is adapted to be sleeved on the connecting portion 330, and the lower end of the second annular sealing portion 460 is abutted to the step 340 of the pushing member 300. A sealing groove 120 is annularly arranged on the inner wall of the cup mouth 101 of the heat preservation cup body 100.

Referring to fig. 5, the driving member 500 drives the pushing member 300 to move upward, and the second annular sealing portion 460 protrudes outward under the pushing action of the pushing member 300 and is accommodated in the sealing groove 120, so that the second annular sealing portion 460 is in sealing connection with the inner wall of the rim 101 of the insulating cup 100, and the sealing ring 400 is also in sealing contact with the pushing member 300, so that the inside of the insulating cup 100 is sealed, and heat insulation is achieved. Similarly, the driving member 500 drives the pushing member 300 to move downward, and the second annular sealing portion 460 elastically returns to leave the sealing groove 120, so that the thermos cup cover 200 can be taken out from the cup opening 101 of the thermos cup 100.

Referring to fig. 5, a second annular coupling protrusion 470 is protruded from a lower end of the second annular sealing portion 460, a second annular coupling groove 350 is dug in the step 340 of the pushing member 300, and the second annular coupling protrusion 470 is inserted into the second annular coupling groove 350, so that the sealing ring 400 is stably coupled to the pushing member 300.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the present invention pertains, the architecture form can be flexible and varied without departing from the concept of the present invention, and a series of products can be derived. But rather a number of simple derivations or substitutions are made which are to be considered as falling within the scope of the invention as defined by the appended claims.