CN110179364B

CN110179364B - Self-locking component of bottle plug and thermos bottle

Info

Publication number: CN110179364B
Application number: CN201910393420.3A
Authority: CN
Inventors: 陈敬伟; 王悦; 陈鑫
Original assignee: Anhui Alphabet Industrial Design Co ltd
Current assignee: Anhui Alphabet Industrial Design Co ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-10-16
Anticipated expiration: 2039-05-13
Also published as: CN110179364A

Abstract

The invention belongs to the field of design and manufacture of articles for daily use, and particularly relates to a bottle plug self-locking member and a thermos bottle, which comprise a locking unit arranged at the bottle mouth of the thermos bottle, wherein the locking unit comprises a clamping protrusion arranged in a telescopic manner along the radial direction of the bottle mouth and a clamping groove arranged on the bottle plug corresponding to the clamping protrusion, and the clamping protrusion is assembled to move between the following two stations: the clamping protrusion is flush with or recessed on the inner wall of the bottle mouth; the clamping protrusions protrude out of the inner wall of the bottle opening and are embedded into the clamping grooves to lock the bottle stopper and the bottle opening; the thermal insulation bottle comprises a thermal insulation bottle handle and a thermal insulation bottle body, and is characterized by further comprising a first trigger unit and a second trigger unit which are arranged on the thermal insulation bottle handle and the bottom, wherein the first trigger unit and the second trigger unit are assembled to be capable of switching a clamping projection at a second station to the first station when any trigger unit is triggered. According to the invention, the self-locking member is arranged between the bottle mouth of the thermos bottle and the bottle stopper, when the thermos bottle falls down, the self-locking member can lock the bottle stopper and the bottle mouth, so that the phenomenon that boiling water splashes due to the fact that the bottle stopper falls off from the bottle mouth is prevented.

Description

Self-locking component of bottle plug and thermos bottle

Technical Field

The invention belongs to the field of design and manufacture of articles for daily use, and particularly relates to a bottle stopper self-locking member and a vacuum bottle.

Background

The thermos has the risk of falling, bursting in daily use, and the outer structure of traditional thermos is generally comparatively thin and does not have good leakproofness, and the glass liner in case bursts can lead to boiling water splash everywhere, and connected mode is comparatively single between bottle plug and the bottleneck simultaneously, and the thermos in case takes place to fall, breaks away from on understanding the bottleneck very easily to the bottle plug, further increases the risk that the boiling water splashes, leads to having great potential safety hazard.

Disclosure of Invention

The invention aims to provide a thermos bottle stopper self-locking member capable of locking a thermos bottle stopper when the thermos bottle falls down and a thermos bottle.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a bottle plug auto-lock component, is including setting up the locking unit at heat preservation bottleneck department, the locking unit includes the protruding and the bottle plug of card that sets up along the radial flexible setting of bottleneck and corresponds the draw-in groove that sets up with the protruding card, the protruding assembly of card is for removing between following two stations: the clamping protrusion is flush with or recessed on the inner wall of the bottle mouth; the clamping protrusions protrude out of the inner wall of the bottle opening and are embedded into the clamping grooves to lock the bottle stopper and the bottle opening; the heat-insulation bottle comprises a heat-insulation bottle handle and a first trigger unit and a second trigger unit, wherein the heat-insulation bottle handle is arranged on the bottom of the heat-insulation bottle handle, the first trigger unit and the second trigger unit are assembled to be capable of switching a clamping protrusion at a second station to the first station when any trigger unit is triggered.

The expansion piece is arranged in a manner of sliding along the radial direction of the bottle mouth, an arrow-shaped head is arranged on one side of the expansion piece opposite to the crack, and the head enters the crack in the sliding process of the expansion piece to be capable of expanding the two elastic arms; the clamping protrusion penetrates through the side wall of the bottle opening, and the outer end of the clamping protrusion and the arc-shaped hole formed in the elastic arm form sliding hinged fit.

And transmission members are arranged between the first trigger unit and the second trigger unit and the expansion block, and are assembled to drive the expansion block to slide towards the direction of the crack when any trigger unit is triggered.

The transmission component comprises a vertical pull rod, a first lever, a second lever and a first connecting rod, wherein the pivot of the first lever and the pivot of the second lever are hinged to an internal structure of the thermos bottle shell, one end of the first lever is hinged to a vertical waist-shaped hole formed in the expansion block in a sliding mode, the other end of the first lever is hinged to the first connecting rod, the first connecting rod is hinged to one end of the second lever, the other end of the second lever is hinged to a horizontal waist-shaped hole formed in the top end of the vertical pull rod in a sliding mode, the vertical pull rod is arranged on the structure inside the thermos bottle shell in a sliding mode along the vertical direction, and a first pressure spring capable of driving the vertical pull rod to move upwards is arranged between the vertical pull rod and the structure.

The first trigger unit comprises a pressing rod, a third lever, a fourth lever and a second connecting rod, the lower end of the pressing rod is hinged to the inner side of the handle, the upper end of the pressing rod is hinged to one end of the third lever in a sliding mode, a fulcrum of the third lever and a fulcrum of the fourth lever are hinged to an inner structural part of the handle, the other end of the third lever is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to one end of the fourth lever, and the other end of the fourth lever is movably hinged to a triangular limiting hole a formed in the vertical pull rod.

The second trigger unit comprises a top column, a fifth lever, a sixth lever and a third connecting rod, the top column is movably arranged at the bottom of the heat preservation bottle along the vertical direction, and a second pressure spring capable of driving the top column to descend is arranged between the top column and the bottle bottom; the fulcrum of the fifth lever and the fulcrum of the sixth lever are hinged with the bottle bottom structural part, the upper end of the top column is hinged with one end of the fifth lever, the other end of the fifth lever is hinged with one end of a third connecting rod, the other end of the third connecting rod is hinged with one end of the sixth lever, and the other end of the sixth lever is movably hinged with a triangular limiting hole b formed in the vertical pull rod.

A vacuum flask comprises a shell, an inner container, a flask plug and a flask plug self-locking member, wherein an explosion-proof bag is arranged between the shell and the inner container.

The connecting ring comprises a cylindrical body, an elastic ring and a pressing ring, wherein the elastic ring and the pressing ring are sequentially arranged at the lower end of the cylindrical body, the elastic ring is positioned in a sinking groove formed in the lower end of the cylindrical body, the upper end of the pressing ring is abutted against the lower end of the elastic ring, a lug is arranged on the outer ring surface of the pressing ring, a pull pin which protrudes upwards is arranged on the lug, the pull pin penetrates through a boss arranged on the outer wall of the cylindrical body and is rotationally connected with a cam arranged at the upper end of the boss, the rotating shaft of the cam is perpendicular to the axis of the pull pin, a shifting lever is connected to the rotating shaft of the cam, and the rotating shaft of the cam penetrates through the outer part of the; the bottle mouth of the inner container forms a plug-in fit with the central hole of the connecting ring from the lower end of the connecting ring.

The shell consists of a bottle shoulder and a bottle body, and the bottle shoulder is detachably connected with the bottle body; the explosion-proof bag is formed by splicing an upper half part and a lower half part, wherein the upper end and the lower end of the upper half part are fixedly connected with the upper end and the lower end of the bottle shoulder respectively, and the upper end of the lower half part is detachably connected with the lower end of the bottle shoulder in a sealing manner.

The upper end of lower half even has a concatenation ring, the concatenation ring is connected with the terminal surface under the bottle shoulder through rotatory buckle component, and is equipped with the sealing washer under concatenation ring and the bottle shoulder between the terminal surface, rotatory buckle component includes the protruding type dop of falling L that stretches the setting in concatenation ring upper end to and the arc draw-in groove of seting up under the bottle shoulder on the terminal surface, the one end of arc draw-in groove is equipped with the breach portion that supplies the type dop of falling L to pass, and the type dop of falling L penetrates to arc draw-in groove upside and can make the type dop of falling L keep off with the terminal surface of arc draw-in groove upside along the rotation in circumference from breach portion.

The invention has the technical effects that: according to the invention, the self-locking member is arranged between the bottle mouth of the thermos bottle and the bottle stopper, when the thermos bottle falls down, the self-locking member can lock the bottle stopper and the bottle mouth, so that the phenomenon that boiling water splashes due to the fact that the bottle stopper falls off from the bottle mouth is prevented.

Drawings

Fig. 1 is a perspective view of a vacuum flask according to an embodiment of the present invention;

figure 2 is a perspective view from another perspective of a thermos bottle provided by an embodiment of the present invention;

figure 3 is a cross-sectional view of a vacuum flask according to an embodiment of the present invention;

FIG. 4 is a partial view I of FIG. 3;

FIG. 5 is a partial view II of FIG. 3;

FIG. 6 is a partial view of III of FIG. 3;

FIG. 7 is a perspective view showing the inner structure of a vacuum flask according to an embodiment of the present invention;

FIG. 8 is a perspective view of a structure of a mouth of a thermos bottle according to an embodiment of the present invention;

FIG. 9 is a sectional view of a structure of a mouth of a thermos bottle according to an embodiment of the present invention;

fig. 10 is a perspective view of a bottle closure construction provided by an embodiment of the present invention;

FIG. 11 is a perspective view of a body structure provided by an embodiment of the present invention;

fig. 12 is an exploded view of the assembly of the bottle shoulder and the inner container provided by the embodiment of the invention.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.

As shown in fig. 1, 2 and 3, the vacuum flask comprises a shell 10, an inner container 20, a bottle stopper 40 and a bottle stopper self-locking member, wherein an explosion-proof bag 30 is further arranged between the shell 10 and the inner container 20. As shown in fig. 4, 8, 9 and 10, the stopper self-locking member includes a locking unit disposed at the mouth of the thermal bottle, the locking unit includes a locking protrusion 1141 extending and contracting along the radial direction of the mouth and a locking groove 41 corresponding to the locking protrusion 1141 on the stopper 40, the locking protrusion 1141 is assembled to move between the following two stations: in the first working position, the clamping projection 1141 is flush with or recessed in the inner wall of the bottle mouth; in the second working position, the clamping protrusions 1141 protrude out of the inner wall of the bottle opening and are embedded into the clamping grooves 41, so that the bottle plug 40 is locked with the bottle opening; the heat preservation bottle further comprises a first trigger unit and a second trigger unit which are arranged on the handle 121 and the bottom of the heat preservation bottle, and the first trigger unit and the second trigger unit are assembled to be capable of switching the clamping projection 1141 at the second station to the first station when any one trigger unit is triggered. According to the invention, the self-locking member is arranged between the bottle mouth of the thermos bottle and the bottle stopper 40, when the thermos bottle falls down, the self-locking member can lock the bottle stopper 40 and the bottle mouth, so that the phenomenon that boiling water splashes due to the fact that the bottle stopper 40 falls off from the bottle mouth is prevented. In addition, the anti-explosion bag 30 is additionally arranged outside the inner container 20 on the basis of the traditional thermos bottle, and when the thermos bottle is accidentally dropped, the anti-explosion bag 30 can effectively avoid boiling water splashing caused by the burst of the inner container 20 and avoid scalding.

Preferably, as shown in fig. 8, the thermos bottle further comprises two elastic arms 114 arranged outside the mouth of the thermos bottle, the two elastic arms 114 are arc-shaped and are arranged around the periphery of the mouth, one end of each of the two elastic arms 114 is fixedly connected with the outer wall of the mouth, the other end of each of the two elastic arms 114 is close to each other to form a gap, an expansion block 115 is correspondingly arranged at the gap, the expansion block 115 is arranged in a sliding manner along the radial direction of the mouth, an arrow-shaped head is arranged on one side of the expansion block 115 opposite to the gap, and the head enters the gap to prop the two elastic arms 114 open in the sliding process of the expansion block 115; the snap 1141 penetrates through the side wall of the bottle mouth, and the outer end of the snap 1141 and the arc hole 1142 formed on the elastic arm 114 form a sliding hinge fit. The invention realizes the automatic extension and contraction of the clamping convex 1141 through the expansion and contraction of the elastic arm 114, and has simple and reliable structure.

Further, a transmission member is arranged between the first trigger unit and the second trigger unit and the expansion block 115, and the transmission member is assembled to drive the expansion block 115 to slide towards the direction of the crack when any trigger unit is triggered.

Specifically, as shown in fig. 3, 4, 5, and 6, the transmission member includes a vertical pull rod 57, a first lever 54, a second lever 53, and a first link 56, where the pivots of the first lever 54 and the second lever 53 are hinged to a structural member inside the thermos bottle housing 10, one end of the first lever 54 is slidably hinged to a vertical kidney-shaped hole 1152 formed in the expansion block 115, the other end of the first lever 54 is hinged to the first link 56, the first link 56 is hinged to one end of the second lever 53, the other end of the second lever 53 is slidably hinged to a horizontal kidney-shaped hole 571 formed in the top end of the vertical pull rod 57, the vertical pull rod 57 is slidably disposed on the structural member inside the thermos bottle housing 10 in the vertical direction, and a first compression spring 574 capable of driving the vertical pull rod 57 to move upward is disposed between the vertical pull rod 57 and the structural member. The first trigger unit comprises a pressure lever 122, a third lever 51, a fourth lever 52 and a second connecting rod 55, the lower end of the pressure lever 122 is hinged with the inner side of the handle 121, the upper end of the pressure lever 122 is hinged with one end of the third lever 51 in a sliding manner, fulcrums of the third lever 51 and the fourth lever 52 are hinged with an internal structural member of the handle 121, the other end of the third lever 51 is hinged with one end of the second connecting rod 55, the other end of the second connecting rod 55 is hinged with one end of the fourth lever 52, and the other end of the fourth lever 52 is movably hinged with a triangular limiting hole a572 arranged on the vertical pull rod 57. The second trigger unit comprises a top column 61, a fifth lever 62, a sixth lever 64 and a third connecting rod 63, the top column 61 is movably arranged at the bottom of the heat preservation bottle along the vertical direction, and a second pressure spring 65 capable of driving the top column 61 to descend is arranged between the top column 61 and the bottom of the heat preservation bottle; the fulcrum of the fifth lever 62 and the fulcrum of the sixth lever 64 are hinged with the bottle bottom structural member 60, the upper end of the top column 61 is hinged with one end of the fifth lever 62, the other end of the fifth lever 62 is hinged with one end of the third connecting rod 63, the other end of the third connecting rod 63 is hinged with one end of the sixth lever 64, and the other end of the sixth lever 64 is movably hinged with a triangular limiting hole b573 arranged on the vertical pull rod 57.

The triggering of the self-locking component of the invention is completely realized by a mechanical mode, and the principle is as follows: the invention sets up a trigger device separately in the hand grip 121121 of the thermos flask and bottle bottom of the thermos flask, when any trigger device is in the trigger state, the auto-lock component is in the unlocked state, that is to say when the hand carries the thermos flask to pour water, or put the thermos flask on the table to fill water, the bottle plug 40 can be taken down arbitrarily, this has no difference with the use of the traditional thermos flask; when the thermos bottle is in the middle of the air, the two trigger devices fail at the same time, and the self-locking component can be automatically locked. The transmission principle can be seen in fig. 3, 4, 5, 6, 8, 9, and 10, taking the trigger device at the handle 121 as an example, when the hand grips the arm, the hand will squeeze the pressing rod 122 at the same time, the pressing rod 122 will drive the third lever 51, the second connecting rod 55, and the fourth lever 52 to move in sequence, so that the fourth lever 52 swings downward, the vertical pulling rod 57 pulls downward, the vertical pulling rod 57 drives the second lever 53 to swing downward, the second lever 53 drives the first connecting rod 56 and the first lever 54 to move in sequence, the pin on the first lever 54 drives the expansion block 115 to move inward the crack, the elastic arm 114 is expanded, and the chuck is driven to slide outward, thereby realizing the unlocking action. Similarly, when the top pillar 61 at the bottom of the bottle is pressed into the bottle body by the tabletop, the top pillar 61 drives the fifth lever 62 to rotate, the fifth lever 62 drives the third pull rod to move, the third pull rod drives the sixth lever 64 to rotate, and the sixth lever 64 pulls down the vertical pull rod 57, so as to drive subsequent components to move.

Preferably, as shown in fig. 4, a connecting ring is disposed at an opening at the top of the housing 10, the connecting ring includes a cylindrical body 111, and an elastic ring 112 and a pressing ring 113 sequentially disposed at the lower end of the cylindrical body 111, the elastic ring 112 is located in a sinking groove disposed at the lower end of the cylindrical body 111, the upper end of the pressing ring 113 abuts against the lower end of the elastic ring 112, a lug is disposed on an outer circumferential surface of the pressing ring 113, a pull pin 1131 protruding upward is disposed on the lug, the pull pin 1131 penetrates through a boss disposed on an outer wall of the cylindrical body 111 and is rotatably connected with a cam 1132 disposed at the upper end of the boss, a rotating shaft of the cam 1132 is perpendicular to an axis of the pull pin 1131, a shift lever 1133 is connected to a rotating shaft of the cam 1132, and the rotating shaft of the cam 1132 penetrates through the outside of the; the bottle mouth of the inner container 20 forms a plug-in fit with the central hole of the connecting ring from the lower end of the connecting ring. Along with the swing of the driving lever 1133, the cam 1132 can drive the cylindrical body 111 and the pressing ring 113 to approach or separate from each other, so as to force the elastic ring 112 to expand and contract, and the opening of the liner 20 can be clamped and sealed when the elastic ring 112 expands inwards, so that the liner 20 and the bottle shoulder can be quickly disassembled and assembled.

Preferably, as shown in fig. 7, 11 and 12, the housing 10 is composed of a bottle shoulder 11 and a bottle body 12, and the bottle shoulder 11 is detachably connected with the bottle body 12; the explosion-proof bag 30 is formed by splicing an upper half part 31 and a lower half part 32, wherein the upper end and the lower end of the upper half part 31 are fixedly connected with the upper end and the lower end of the bottle shoulder 11 respectively, and the upper end of the lower half part 32 is detachably connected with the lower end of the bottle shoulder 11 in a sealing manner. In order to ensure the reliable sealing of the explosion-proof bag 30, the opening of the explosion-proof bag 30 is designed to be a closed structure identical to the inner container 20, and for this purpose, the invention also designs the explosion-proof bag 30 to be a splicing structure so as to facilitate the assembly of the explosion-proof bag 30 and the inner container 20. Specifically, even there is a concatenation ring 33 upper end of lower half 32, concatenation ring 33 passes through rotatory buckle component and bottle shoulder 11 lower terminal surface and is connected, and is equipped with the sealing washer between concatenation ring 33 and the bottle shoulder 11 lower terminal surface, rotatory buckle component includes the protruding type of falling L dop 331 that sets up in concatenation ring 33 upper end to and the arc draw-in groove 117 of seting up on the bottle shoulder 11 lower terminal surface, the one end of arc draw-in groove 117 is equipped with the breach portion 1171 that supplies type of falling L dop 331 to pass, and type of falling L dop 331 penetrates to arc draw-in groove 117 upside and can make type of falling L dop 331 and the terminal surface fender of arc draw-in groove 117 upside connect along circumference rotation from breach portion 1171. The upper end of the vertical pull rod 57 protrudes out of the upper end face of the bottle body 12, a through hole 110 through which the upper end of the vertical pull rod 57 passes is reserved in the lower end face of the bottle shoulder 11, during assembly, the vertical pull rod 57 is aligned to the through hole 110, the bottle shoulder 11 is attached to the bottle body 12, then the bottle shoulder 11 is rotated, the pin shaft on the second lever 53 is inserted into the horizontal waist-shaped hole 571 in the top end of the vertical pull rod 57, and meanwhile, the bottle shoulder 11 is clamped with the bottle body 12.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. A vacuum flask, characterized in that: the anti-explosion bottle stopper comprises a shell (10), an inner container (20), a bottle stopper (40) and a bottle stopper self-locking component, wherein an anti-explosion bag (30) is arranged between the shell (10) and the inner container (20); a connecting ring is arranged at the opening at the top of the shell (10), the connecting ring comprises a cylindrical body (111), an elastic ring (112) and a press ring (113) which are arranged at the lower end of the cylindrical body (111) in sequence, the elastic ring (112) is positioned in a sink groove arranged at the lower end of the cylindrical body (111), the upper end of the press ring (113) is abutted against the lower end of the elastic ring (112), the outer ring surface of the press ring (113) is provided with a lug, the lug is provided with a pull pin (1131) which protrudes upwards, the pull pin (1131) penetrates through a boss arranged on the outer wall of the cylindrical body (111), the rotating shaft of the cam (1132) is perpendicular to the axis of the pull pin (1131), the rotating shaft of the cam (1132) is connected with a shifting lever (1133), and the rotating shaft of the cam (1132) penetrates through the outer part of the shell (10) and is connected with the shifting lever (1133) arranged on the outer part of the shell (10); the bottle mouth of the inner container (20) is in insertion fit with the central hole of the connecting ring from the lower end of the connecting ring; the bottle plug auto-lock component is including setting up the locking unit at heat preservation bottleneck department, the locking unit includes card protruding (1141) and bottle plug (40) of setting up along the radial flexible card of bottleneck and corresponds draw-in groove (41) that set up with card protruding (1141), card protruding (1141) are assembled and are removed between following two stations: in the first station, the clamping protrusion (1141) is flush with or recessed on the inner wall of the bottle mouth; in the second working position, the clamping protrusions (1141) protrude out of the inner wall of the bottle opening and are embedded into the clamping grooves (41) to lock the bottle stopper (40) and the bottle opening; the heat preservation bottle comprises a handle (121) of a heat preservation bottle and a first trigger unit and a second trigger unit which are arranged at the bottom of the handle, wherein the first trigger unit and the second trigger unit are assembled to be capable of switching a clamping boss (1141) at a second station to the first station when any trigger unit is triggered.

2. A vacuum flask as in claim 1, wherein: the bottle further comprises two elastic arms (114) arranged on the outer side of the mouth of the vacuum bottle, the two elastic arms (114) are arc-shaped and are arranged on the periphery of the mouth, one ends of the two elastic arms (114) are fixedly connected with the outer wall of the mouth, the other ends of the two elastic arms are close to each other to form a crack, an expansion block (115) is correspondingly arranged at the crack, the expansion block (115) is arranged in a sliding mode along the radial direction of the mouth, one side, opposite to the crack, of the expansion block (115) is provided with an arrow-shaped head, and the head enters the crack in the sliding process of the expansion block (115) and can prop the two elastic arms (114) open; the clamping protrusion (1141) penetrates through the side wall of the bottle opening, and the outer end of the clamping protrusion (1141) and an arc-shaped hole (1142) formed in the elastic arm (114) form sliding hinged fit.

3. A vacuum flask as claimed in claim 2, characterized in that: and transmission members are arranged between the first trigger unit and the second trigger unit and the expansion block (115), and are assembled to drive the expansion block (115) to slide towards the direction of the crack when any trigger unit is triggered.

4. A vacuum flask as claimed in claim 3, characterized in that: the transmission component comprises a vertical pull rod (57), a first lever (54), a second lever (53) and a first connecting rod (56), the pivot of the first lever (54) and the second lever (53) is hinged with the internal structural part of the shell (10) of the thermos bottle, one end of the first lever (54) is hinged with a vertical waist-shaped hole (1152) arranged on the expansion block (115) in a sliding way, the other end of the first lever (54) is hinged with a first connecting rod (56), the first connecting rod (56) is hinged with one end of the second lever (53), the other end of the second lever (53) is hinged with a horizontal waist-shaped hole (571) arranged at the top end of a vertical pull rod (57) in a sliding way, the vertical pull rod (57) is arranged on a structural member in the heat preservation bottle shell (10) in a sliding way along the vertical direction, and a first pressure spring (574) capable of driving the vertical pull rod (57) to move upwards is arranged between the vertical pull rod (57) and the structural component.

5. A vacuum flask as claimed in claim 4, characterized in that: the first trigger unit comprises a pressure lever (122), a third lever (51), a fourth lever (52) and a second connecting rod (55), the lower end of the pressure lever (122) is hinged with the inner side of the handle (121), the upper end of the pressure lever (122) is hinged with one end of the third lever (51) in a sliding mode, the fulcrums of the third lever (51) and the fourth lever (52) are hinged with an internal structural part of the handle (121), the other end of the third lever (51) is hinged with one end of the second connecting rod (55), the other end of the second connecting rod (55) is hinged with one end of the fourth lever (52), and the other end of the fourth lever (52) is movably hinged with a triangular limiting hole a (572) formed in the vertical pull rod (57).

6. A vacuum flask as claimed in claim 4, characterized in that: the second trigger unit comprises a top column (61), a fifth lever (62), a sixth lever (64) and a third connecting rod (63), the top column (61) is movably arranged at the bottom of the heat preservation bottle along the vertical direction, and a second pressure spring (65) capable of driving the top column (61) to descend is arranged between the top column (61) and the bottle bottom; the fulcrum of the fifth lever (62) and the fulcrum of the sixth lever (64) are hinged with the bottle bottom structural member (60), the upper end of the top column (61) is hinged with one end of the fifth lever (62), the other end of the fifth lever (62) is hinged with one end of a third connecting rod (63), the other end of the third connecting rod (63) is hinged with one end of the sixth lever (64), and the other end of the sixth lever (64) is movably hinged with a triangular limiting hole b (573) formed in the vertical pull rod (57).

7. A vacuum flask as in claim 1, wherein: the shell (10) consists of a bottle shoulder (11) and a bottle body (12), and the bottle shoulder (11) is detachably connected with the bottle body (12); the explosion-proof bag (30) is formed by splicing an upper half part (31) and a lower half part (32), wherein the upper end and the lower end of the upper half part (31) are fixedly connected with the upper end and the lower end of the bottle shoulder (11) respectively, and the upper end of the lower half part (32) is detachably and hermetically connected with the lower end of the bottle shoulder (11).

8. A vacuum flask as in claim 7, wherein: the upper end of lower half (32) even has a concatenation ring (33), concatenation ring (33) are connected through rotatory buckle component and bottle shoulder (11) lower terminal surface, and is equipped with the sealing washer between concatenation ring (33) and bottle shoulder (11) lower terminal surface, rotatory buckle component includes that concatenation ring (33) upper end is protruding to stretch the type of falling L dop (331) that sets up to and arc draw-in groove (117) of seting up under bottle shoulder (11) on the terminal surface, the one end of arc draw-in groove (117) is equipped with breach portion (1171) that supply type of falling L dop (331) to pass, and type of falling L dop (331) penetrate to arc draw-in groove (117) upside from breach portion (1171) and can make the terminal surface fender of type of falling L dop (331) and arc draw-in groove (117) upside along circumference rotation and connect.